DISHWASHER AND CONTROLLING METHOD OF DISHWASHER

Abstract

A dishwasher including a tub including an opening; a door configured to open and close the opening; a first blower positioned at a first side of the tub; and a second blower positioned at a second side of the tub; wherein the first blower is configured to, while the door is positioned to open the opening, discharge a portion of air inside of the tub through the opening to outside of the tub so as to lower humidity inside of the tub, and the second blower is configured to, while the door is positioned to open the opening, circulate air inside of the tub that is not discharged by the first blower.

Description

BACKGROUND

1. Field

The disclosure relates to a dishwasher having a blower and a method for controlling the dishwasher.

2. Description of the Related Art

A dishwasher is an appliance for automatically washing off food residues, etc., on dishes with a detergent and washing water.

The dishwasher includes a tub forming a washing space, a sump for collecting washing water of the tub, a pump for pumping the washing water collected in the sump, and a spray device for spraying the pumped washing water toward the tub.

The dishwasher performs a washing operation of washing dishes with water and a detergent, a rinsing operation of rinsing the dishes, and a drying operation of removing water remaining on the dishes.

SUMMARY

Aspects of embodiments of the disclosure will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments.

According to an embodiment of the disclosure, a dishwasher includes a tub including an opening; a door configured to open and close the opening; a first blower positioned at a first side of the tub; and a second blower positioned at a second side of the tub; wherein the first blower is configured to, while the door is positioned to open the opening, discharge a portion of air inside of the tub through the opening to outside of the tub so as to lower humidity inside of the tub, and the second blower is configured to, while the door is positioned to open the opening, circulate air inside of the tub that is not discharged by the first blower.

According to an embodiment of the disclosure, the first side of the tub may face the second side of the tub.

According to an embodiment of the disclosure, the first blower may include a blow fan, and a blow duct forming a flow path to guide air blown by the blow fan toward the opening.

According to an embodiment of the disclosure, the second blower may include a blow fan, and a blow duct forming a flow path to guide air blown by the blow fan away from the opening.

According to an embodiment of the disclosure, the opening may be formed in a front side of the tub, the door may be rotatable so that an upper portion of the door is movable away from and toward the tub to open and close the opening, and the first blower may include an inlet provided at a first end of the flow path, and an outlet provided at a second end of the flow path and positioned forward of the inlet toward the opening, wherein the air flowing on the flow path may be sucked into the inlet from inside of the tub, and discharged through the outlet, by the blow fan.

According to an embodiment of the disclosure, the flow path may be a first flow path, the outlet may be a first outlet, and the first blower may include a second flow path partitioned from the first flow path, and a second outlet positioned below the first outlet and configured to circulate air flowing on the second flow path to inside of the tub.

According to an embodiment of the disclosure, the opening may be formed in a front side of the tub, the door may be rotatable so that an upper portion of the door is movable away from and toward the tub to open and close the opening, and the second blower may include an inlet provided at a first end of the flow path, and an outlet provided at a second end of the flow path and positioned below the inlet, wherein the air flowing on the flow path may be sucked into the inlet from an inside of the tub, and discharged through the outlet to inside of the tub, by the blow fan.

According to an embodiment of the disclosure, the flow path may be a first flow path, the outlet may be a first outlet, and the second blower may include a second flow path partitioned from the first flow path; and a second outlet positioned below the inlet and arranged in a front-rear direction with respect to the first outlet, wherein air flowing on the second flow path is discharged through the second outlet to inside of the tub.

According to an embodiment of the disclosure, each of the first blower and the second blower may include a blow fan, and an inlet cap facing the blow fan and detachably installed on an inner wall of the tub, and the inlet cap may include a body portion covering the blow fan and configured to prevent at least one of foreign materials or washing water in the tub from entering the blow fan, and an inlet formed between the inner wall of the tub and the body portion, wherein air inside of the tub is sucked through the inlet.

According to an embodiment of the disclosure, the inlet cap may include at least one inlet guide rib formed on the body portion and extending toward the blow fan, the at least one inlet guide rib having a downwardly inclined, curved shape.

According to an embodiment of the disclosure, the opening may be formed in a front side of the tub. The door may be rotatable so that an upper portion of the door is movable away from and toward the tub to open and close the opening. The first blower may include a first blow fan, a first blow duct detachably installed on an outer wall of the first side of the tub and configured to guide air blown by the first blow fan, and a first outlet cap detachably installed on an inner wall of the first side of the tub at an end of the first blow duct so as to communicate the first blow duct with inside of the tub. The second blower may include a second blow fan, a second blow duct detachably installed on an outer wall of the second side of the tub and configured to guide air blown by the second blow fan, and a second outlet cap detachably installed on an inner wall of the second side of the tub at an end of the second blow duct so as to communicate the second blow duct with inside of the tub. The first outlet cap may include a first outlet guide rib inclined toward a front, upper direction and configured to induce air guided by the first blow duct to move toward the opening. The second outlet cap may include a second outlet guide rib inclined downward and configured to induce air guided by the second blow duct to move away from the opening.

According to an embodiment of the disclosure, the dishwasher may further include a controller configured to control the first blower and the second blower.

According to an embodiment of the disclosure, the controller may be configured to control the first blower and the second blower to operate according to an elapse of a preset time after the door opens the opening.

According to an embodiment of the disclosure, the controller may be configured to control each of the first blower and the second blower to change a blowing force periodically.

According to an embodiment of the disclosure, the controller may be configured to control each of the first blower and the second blower to be repeatedly turned on and off periodically.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other embodiments of the disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows an example of a dishwasher according to an embodiment of the disclosure;

FIG. 2 shows a side cross-sectional view of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 3 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 4 shows the dishwasher shown in FIG. 3 in another direction;

FIG. 5 is an exploded view of an example of a first blower according to an embodiment of the disclosure;

FIG. 6 shows the first blower shown in FIG. 5 in another direction;

FIG. 7 shows an example of a first inlet cap according to an embodiment of the disclosure;

FIG. 8 shows an example of a 1a-th outlet cap according to an embodiment of the disclosure;

FIG. 9 shows an example of a 1 b-th outlet cap according to an embodiment of the disclosure;

FIG. 10 is a top cross-sectional view of an example of a first blower according to an embodiment of the disclosure;

FIG. 11 is a view obtained by cutting an example of a first blower according to an embodiment of the disclosure;

FIG. 12 is a view obtained by cutting an example of a first blower according to an embodiment of the disclosure;

FIG. 13 is an exploded view of an example of a second blower according to an embodiment of the disclosure;

FIG. 14 shows the second blower shown in FIG. 13 in another direction;

FIG. 15 shows an example of a second inlet cap according to an embodiment of the disclosure;

FIG. 16 shows an example of a second outlet cap according to an embodiment of the disclosure;

FIG. 17 is a view obtained by cutting an example of a second blower according to an embodiment of the disclosure;

FIG. 18 is a view obtained by cutting an example of a second blower according to an embodiment of the disclosure;

FIG. 19 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 20 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 21 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 22 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 23 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 24 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 25 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 26 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 27 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 28 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 29 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 30 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 31 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 32 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 33 shows inside of an example of a dishwasher according to an embodiment of the disclosure;

FIG. 34 shows an example of an operation cycle of a dishwasher according to an embodiment of the disclosure and an example of an operation cycle of a dishwasher according to a comparative example;

FIG. 35 shows an example of a control block diagram of a dishwasher according to an embodiment of the disclosure;

FIG. 36 shows an example of an operation of blowers according to an embodiment of the disclosure;

FIG. 37 shows an example of an operation of blowers according to an embodiment of the disclosure;

FIG. 38 shows an example of an operation of blowers according to an embodiment of the disclosure;

FIG. 39 shows an example of an operation of blowers according to an embodiment of the disclosure;

FIG. 40 is a flowchart showing an example of a method for controlling a dishwasher during a drying operation according to embodiment of the disclosure;

FIG. 41 is a flowchart showing an example of a method for controlling a dishwasher in a case in which inside temperature of a tub reaches target temperature according to an embodiment of the disclosure;

FIG. 42 is a flowchart showing an example of a method for controlling a dishwasher in a case in which inside humidity of a tub reaches target humidity according to an embodiment of the disclosure;

FIG. 43 is a flowchart showing an example of a dishwasher control method for controlling a blower by comparing inside temperature of a tub with target temperature according to elapse of a preset time after the blower starts operating according to an embodiment of the disclosure; and

FIG. 44 is a flowchart showing an example of a dishwasher control method for controlling a blower by comparing inside humidity of a tub with target humidity according to elapse of a preset time after the blower starts operating according to an embodiment of the disclosure.

DETAILED DESCRIPTION

Configurations illustrated in the drawings and the embodiments described in the present specification are only the preferred embodiments of the present disclosure, and thus it is to be understood that various modified examples, which may replace the drawings and the embodiments described in the present specification, are possible.

Also, like reference numerals or symbols denoted in the drawings of the present specification represent members or components that perform the substantially same functions.

Also, the terms used in the present specification are merely used to describe the embodiments, and are not intended to limit and/or restrict the disclosure.

An expression used in the singular encompasses the expression of the plural, unless it has a clearly different meaning in the context.

It is to be understood that the terms such as “comprising”, “including” or “having”, etc., are intended to indicate the existence of the features, numbers, steps, operations, components, parts, or combinations thereof disclosed in the specification, and are not intended to preclude the possibility that one or more other features, numbers, steps, operations, components, parts, or combinations thereof may exist or may be added.

It is to be understood that if a certain component is referred to as being “connected to,” “coupled to,” “supported on” or “in contact with” another component, it means that the component may be connected to, coupled to, supported on, or in contact with the other component directly or indirectly via a third component.

It will also be understood that when a certain member is referred to as being “on” or “over” another member, it can be directly on the other member or intervening members may also be present.

It will be understood that, although the terms including ordinal numbers, such as “first”, “second”, etc., may be used herein to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of the present disclosure.

As used herein, each of such phrases as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C,” may include any one of, or all possible combinations of the items enumerated together in a corresponding one of the phrases.

The term “and/or” includes any and all combinations of one or more of associated listed items.

Meanwhile, in the following description, the terms “front-rear direction”, “front direction”, “rear direction”, “left-right direction”, “left”, “right”, “up-down direction”, “height direction”, “upper”, “lower”, etc. are defined based on the drawings, and the shapes and positions of the corresponding components are not limited by the terms.

For example, a +X direction may be defined as a front direction and a −X direction may be defined as a rear direction. For example, a +Y direction may be defined as a right direction, and a −Y direction may be defined as a left direction. For example, a +Z direction may be defined as an upper direction, and a −Z direction may be defined as a lower direction.

Embodiments of the disclosure may provide a dishwasher capable of saving energy. Embodiments of the disclosure may provide a dishwasher capable of improving drying efficiency. Embodiments of the disclosure may provide a dishwasher capable of performing drying through air circulation inside a tub. Technical problems to be overcome by embodiments of the disclosure are not limited to the technical problems described, and other technical problems overcome but not mentioned will be clearly understood by those skilled in the art to which the disclosure belongs from the following description.

Hereinafter, embodiments of the disclosure will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an example of a dishwasher according to an embodiment of the disclosure. FIG. 2 shows a side cross-sectional view of an example of a dishwasher according to an embodiment of the disclosure.

Referring to FIGS. 1 and 2, a dishwasher 1 may include a main body 10. The main body 10 may form an appearance of the dishwasher 1.

The dishwasher 1 may include a tub 12 provided inside the main body 10.

The tub 12 may be substantially in a shape of a box. One side of the tub 12 may open. The tub 12 may have an opening 12a. The opening 12a may be formed in a front side of the tub 12.

The dishwasher 1 may include a washing room C formed by the tub 12. The washing room C may be defined as an inside space of the tub 12. The washing room C may be a space where dishes put in an accommodating container are washed and dried.

The dishwasher 1 may include a door 11 for opening or closing the opening 12a of the tub 12. The door 11 may be installed on the main body 10 to open or close the opening 12a of the tub 12. The door 11 may be detachably installed on the main body 10. The door 11 may be rotatably installed on the main body 10. For example, the door 11 may be rotatably coupled to the main body 10 through a hinge 15.

For example, an upper portion of the door 11 may be rotatable on a lower portion of the door 11 with respect to the tub 12. The lower portion of the door 11 may be rotatably fixed to the main body 10. The door 11 may open the opening 12a of the tub 12 from an upper area of the opening 12a. For example, during a drying operation, the door 11 may open the opening 12a of the tub 12 to a preset range, which is shown in FIG. 2.

For example, opening and closing of the door 11 may be controlled by a controller 300 (see FIG. 35). For example, an open range of the door 11 may be controlled by the controller 300.

The dishwasher 1 may include the accommodating container which is provided inside the tub 12 and in which dishes are accommodated.

The accommodating container may include a plurality of baskets 51, 52, and 53. The plurality of baskets 51, 52, and 53 may accommodate various dishes, although not limited thereto. However, the accommodating container may include a single basket.

The accommodating container may include a middle basket 52 positioned in a center area in height direction (Z direction) of the dishwasher 1. The middle basket 52 may be inserted into or withdrawn from the washing room C through the opening 12a of the tub 12. The middle basket 52 may be supported on a middle guide rack 13b. For example, the middle basket 52 may slide on the middle guide rack 13b. For example, the middle guide rack 13b may be installed on a side surface of the tub 12.

The accommodating container may include a lower basket 51 positioned in a lower area in height direction (Z direction) of the dishwasher 1. The lower basket 51 may be inserted into or withdrawn from the washing room C through the opening 12a of the tub 12. The lower basket 51 may be supported on a lower guide rack 13a. For example, the lower basket 51 may slide on the lower guide rack 13a. For example, the lower guide rack 13a may be installed on the side surface of the tub 12.

Dishes having relatively large volumes may be accommodated in the plurality of baskets 51 and 52. However, kinds of dishes that are accommodated in the plurality of baskets 51 and 52 are not limited to dishes having relatively large volumes. That is, dishes having relatively small volumes, as well as dishes having relatively large volumes may also be accommodated in the plurality of baskets 51 and 52.

The accommodating container may include an upper basket 53 positioned in an upper area in height direction (Z direction) of the dishwasher 1. The upper basket 53 may be formed in a shape of a rack assembly to accommodate dishes having relatively small volumes. For example, cooking tools, such as a ladle, a knife, a spatula, and the like, and cutlery may be accommodated in the upper basket 53. Also, small cups such as espresso cups may be accommodated in the upper basket 53. However, kinds of dishes that are accommodated in the upper basket 53 are not limited to the above-mentioned examples.

The upper basket 53 may be inserted into or withdrawn from the washing room C through the opening 12a of the tub 12. The upper basket 53 may be supported on an upper guide rack 13c. For example, the upper basket 53 may slide on the upper guide rack 13c. For example, the upper guide rack 13c may be installed on the side surface of the tub 12.

The dishwasher 1 may further include a spray device 40 for spraying washing water. The spray device 40 may spray washing water to the washing room C. The spray device 40 may spray washing water toward dishes accommodated in the accommodating container. The spray device 40 may receive washing water from a sump assembly 70 which will be described below.

The spray device 40 may include at least one spray unit. The spray device 40 may include a single spray unit. The spray device 40 may include a plurality of spray units 41, 42, and 43.

For example, the spray device 40 may include a first spray unit 41 positioned below the lower basket 51 in the height direction (Z direction) of the dishwasher 1. The spray device 40 may include a second spray unit 42 positioned below the middle basket 52 in the height direction (Z direction) of the dishwasher 1. The spray device 40 may include a third spray unit 43 positioned above the upper basket 53 in the height direction (Z direction) of the dishwasher 1. However, the spray device 40 is not limited to these, and the spray device 40 may include two or less spray units or four or more spray units.

Each of the plurality of spray units 41, 42, and 43 may spray washing water while rotating. Each of the first spray unit 41, the second spray unit 42, and the third spray unit 43 may spray washing water while rotating. The plurality of spray units 41, 42, and 43 may also be referred to as a plurality of spray rotors 41, 42, and 43. Each of the first spray unit 41, the second spray unit 42, and the third spray unit 43 may also be referred to as a first spray rotor 41, a second spray rotor 42, and a third spray rotor 43, respectively.

However, the spray device 40 may spray washing water by another method than the above-described example. For example, the first spray unit 41 may be fixed to one side of a lower surface 12d of the tub 12, unlike the second spray unit 42 and the third spray unit 43. In this case, the first spray unit 41 may spray washing water in a substantially horizontal direction through a fixed nozzle, and washing water sprayed in the substantially horizontal direction through the nozzle of the first spray unit 41 may change a direction by a turning assembly (not shown) positioned inside the washing chamber C to be sprayed upward. The turning assembly may be mounted on a rail (not shown) and perform a translational movement along the rail. Meanwhile, although an example of the first spray unit 41 has been described, the second spray unit 42 and the third spray unit 43 may also spray washing water through a fixed nozzle, like the above-described example.

The dishwasher 1 may include an auxiliary spray device 30. The auxiliary spray device 30 may be positioned at one side of a lower portion of the washing room C to spray washing water to an area of the washing room C. The auxiliary spray device 30 may be designed to spray water of relatively higher pressure than the spray device 40, thereby intensively washing heavily contaminated dishes. The auxiliary spray device 30 may also be referred to as an auxiliary spray unit 30. The auxiliary spray device 30 may spray washing water while rotating. The auxiliary spray device 30 may also be referred to as an auxiliary spray rotor 30.

The auxiliary spray device 30 may be provided as a component of the spray device 40. Hereinafter, a plurality of spray units may include at least two of the first spray unit 41, the second spray unit 42, the third spray unit 43, or the auxiliary spray unit 30. Hereinafter, a plurality of spray rotors may include at least two of the first spray rotor 41, the second spray rotor 42, the third spray rotor 43, or the auxiliary spray rotor 30.

The dishwasher 1 may selectively include the auxiliary spray device 30. That is, the auxiliary spray device 30 may be omitted from the dishwasher 1.

The dishwasher 1 may include the sump assembly 70. The sump assembly 70 may be referred to as a sump 70.

The sump assembly 70 may accommodate washing water. The sump assembly 70 may collect washing water of the washing room C. For example, for the sump assembly 70 to smoothly collect water, the lower surface 12d of the tub 12 may be inclined downward toward the sump assembly 70. Washing water of the washing room C may flow on an inclination of the lower surface 12d of the tub 12 to smoothly enter the sump assembly 70.

The dishwasher 1 may include a circulating pump 71 for pumping washing water stored in the sump assembly 70 to the spray device 40. The circulating pump 71 may be provided as a component of the sump assembly 70. The circulating pump 71 may be positioned in a machine room L.

The dishwasher 1 may include a drain pump 72 for draining washing water and/or foreign materials (for example, food waste, etc.) remaining in the sump assembly 70. The drain pump 72 may be provided as a component of the sump assembly 70. The drain pump 72 may be positioned in the machine room L.

The sump assembly 70 may supply washing water to at least one of the plurality of spray units 41, 42, 43, and 30. The sump assembly 70 may selectively supply washing water to the plurality of spray units 41, 42, and 43, and 30.

The dishwasher 1 may include a duct 14. The duct 14 may guide washing water from the sump assembly 70 to the spray device 40. The duct 14 may include a shape extending substantially in the height direction (Z direction).

The dishwasher 1 may include the machine room L that is a space provided below the tub 12. The machine room L may be a space where components for circulating washing water are positioned. The dishwasher 1 may include a base frame 20 forming the machine room L.

At least one portion of the sump assembly 70 may be positioned in the machine room L. A major portion of the sump assembly 70 may be positioned in the machine room L. That is, an area of the sump assembly 70, positioned in the washing room C, among an entire area of the sump assembly 70 may be smaller than an area of the sump assembly 70, positioned in the machine room L, among the entire area of the sump assembly 70. By reducing an area of the sump assembly 70 occupying the washing room C, an area of the washing room C may be secured. Accordingly, a capacity of the washing room C may increase to secure more storage for dishes.

The dishwasher 1 may include a filter 60. The filter 60 may filter foreign materials included in washing water entered the sump assembly 70. The washing water filtered by the filter 60 may be transferred to the spray device 40 by the sump assembly 70. The filter 60 may be detachably installed in the sump assembly 70. For example, the filter 60 may include at least one of a fine filter, a coarse filter, or a micro filter.

FIG. 3 shows inside of an example of a dishwasher according to an embodiment of the disclosure. FIG. 4 shows the dishwasher shown in FIG. 3 in another direction;

Referring to FIGS. 3 and 4, the dishwasher 1 may include a blower 80. The blower 80 may forcedly move inside air of the tub 12. The blower 80 may form an air current inside the tub 12. The blower 80 may cause forced air convection inside the tub 12. The blower 80 may generate a blowing force.

Meanwhile, in the present document, air may include both dry air including no vapor and humid air including vapor.

The blower 80 may operate during a drying operation. The blower 80 may remove moisture of the tub 12. The blower 80 may remove water remaining on dishes. The blower 80 may operate according to elapse of a preset time after the door 11 opens the opening 12a of the tub 12. Details about this will be described below.

At least one blower 80 may be provided. The dishwasher 1 may include a single blower 80. The dishwasher 1 may include a plurality of blowers 80. A number of the blower 80 is not limited.

For example, referring to FIGS. 3 and 4, the dishwasher 1 may include a first blower 100 and a second blower 200.

The first blower 100 may be provided in a first side 12b of the tub 12. The second blower 200 may be provided in a second side 12c of the tub 12. For example, the first side 12b of the tub 12 may be a left side 12b of the tub 12. For example, the second side 12c of the tub 12 may be a right side 12c of the tub 12. However, the first blower 100 may be positioned in the right side 12c of the tub 12, and the second blower 200 may be positioned in the left side 12b of the tub 12.

For example, the first blower 100 may face the second blower 200. Because the first blower 100 and the second blower 200 blow air in a state of facing each other, inside air of the tub 12 may move actively.

However, the first blower 100 and the second blower 200 are not limited to locations shown in the drawings, and the first blower 100 and the second blower 200 may be provided at various locations for drying inside of the tub 12.

The first blower 100 and the second blower 200 are not limited in configuration by ordinal numbers of “first” and “second” as described above. For example, the first blower 100 and the second blower 200 may be named in reverse as the second blower 100 and the first blower 200.

An example of the first blower 100 will be described with reference to FIGS. 3 and 4.

The first blower 100 may include a first inlet 150. The first blower 100 may suck inside air of the tub 12 through the first inlet 150. At least one first inlet 150 may be provided.

The first blower 100 may include a first outlet 160. The first blower 100 may discharge air sucked through the first inlet 150 to the inside of the tub 12 through the first outlet 160. At least one first outlet 160 may be provided.

For example, a plurality of first outlets 160 may be provided. For example, the first outlet 160 may include a 1a-th outlet 161 and a 1b-th outlet 162. The 1a-th outlet 161 and the 1b-th outlet 162 may discharge air in different directions, although not limited thereto. However, the 1a-th outlet 161 and the 1b-th outlet 162 may discharge air in the same direction.

The first blower 100 may form a flow path along which inside air of the tub 12 flows.

The first blower 100 may include a first flow path 121. For example, air sucked through the first inlet 150 may flow along the first flow path 121 and then be discharged to the inside of the tub 12 through the 1a-th outlet 161. For example, the first flow path 121 may have a curved shape to reduce a flow loss of air flowing on the first flow path 121.

The first inlet 150 may be provided at upstream of the first flow path 121 in a flow direction of air. The first outlet 160 may be provided at downstream of the first flow path 121 in the flow direction of air. The 1a-th outlet 161 may be provided at the downstream of the first flow path 121 in the flow direction of air.

The first blower 100 may include a second flow path 122. For example, the second flow path 122 may be partitioned from the first flow path 121. For example, air sucked through the first inlet 150 may flow along the second flow path 122 and then be discharged to the inside of the tub 12 through the 1b-th outlet 162. For example, the second flow path 122 may have a curved shape to reduce a flow loss of air flowing on the second flow path 122.

The first inlet 150 may be provided at upstream of the second flow path 122 in a flow direction of air. The first outlet 160 may be provided at downstream of the second flow path 122 in the flow direction of air. The 1b-th outlet 162 may be provided at the downstream of the first flow path 121 in the flow direction of air.

An example of the second blower 200 will be described with reference to FIGS. 3 and 4.

The second blower 200 may include a second inlet 250. The second blower 200 may suck inside air of the tub 12 through the second inlet 250. At least one second inlet 250 may be provided.

The second blower 200 may include a second outlet 260. The second blower 200 may discharge air sucked through the second inlet 250 to the inside of the tub 12 through the second outlet 260. At least one second outlet 260 may be provided.

For example, a plurality of second outlets 260 may be provided. For example, the second outlet 260 may include a 2a-th outlet 261 and a 2b-th outlet 262. The 2a-th outlet 261 and the 2b-th outlet 262 may discharge air in the same direction, although not limited thereto. However, the 2a-th outlet 261 and the 2b-th outlet 262 may discharge air in different directions.

The second blower 200 may form a flow path along which inside air of the tub 12 flows.

The second blower 200 may include a first flow path 221. For example, air sucked through the second inlet 250 may flow along the first flow path 221 and then be discharged to the inside of the tub 12 through the 2a-th outlet 261. For example, the first flow path 221 may have a curved shape to reduce a flow loss of air flowing on the first flow path 221.

The second inlet 250 may be provided at upstream of the first flow path 221 in a flow direction of air. The second outlet 260 may be provided at downstream of the first flow path 221 in the flow direction of air. The 2a-th outlet 261 may be provided at the downstream of the first flow path 221 in the flow direction of air.

The second blower 200 may include a second flow path 222. For example, the second flow path 222 may be partitioned from the first flow path 221. For example, air sucked through the second inlet 250 may flow along the second flow path 222 and then be discharged to the inside of the tub 12 through the 2b-th outlet 262. For example, the second flow path 222 may have a curved shape to reduce a flow loss of air flowing on the second flow path 222.

The second inlet 250 may be provided at upstream of the second flow path 222 in a flow direction of air. The second outlet 260 may be provided at downstream of the second flow path 222 in the flow direction of air. The 2b-th outlet 262 may be provided at the downstream of the second flow path 222 in the flow direction of air.

The first blower 100 may operate during a drying operation. The first blower 100 may operate while the door 11 opens the opening 12a of the tub 12.

The second blower 200 may operate during a drying operation. The second blower 200 may operate while the door 11 opens the opening 12a of the tub 12.

At least one of the first blower 100 or the second blower 200 may discharge inside vapor of the tub 12 to the outside of the tub 12 through the opening 12a of the tub 12 while the door 11 opens the opening 12a of the tub 12. Thereby, inside humidity of the tub 12 may be lowered.

At least one of the first blower 100 or the second blower 200 may circulate inside air of the tub 12 while the door 11 opens the opening 12a of the tub 12. Thereby, an average flow velocity of inside air of the tub 12 may increase. Inside air of the tub 12 may be mixed thoroughly.

Generally, for example, a dishwasher may use a dehumidifying agent to remove inside vapor of a tub during a drying operation. Because the dehumidifying agent absorbs vapor, the inside of the tub may be dried. However, to use a dehumidifying agent, a process of heating the dehumidifying agent to evaporate water included in the dehumidifying agent may be needed. For example, the dishwasher may provide hot air to the inside of the tub during a drying operation. For example, during a final rinsing operation before a drying operation, the dishwasher may heat washing water for condensation drying. A heater may be used to heat a dehumidifying agent, provide hot air, and/or heat washing water. According to an operation of the heater, energy consumption of the dishwasher may increase.

Compared to this, the dishwasher 1 may effectively perform a drying operation through the first blower 100 and/or the second blower 200 without including a separate heater. For example, the dishwasher 1 may effectively evaporate water remaining inside the tub 12 during a drying operation by discharging inside vapor of the tub 12 to the outside of the tub 12 while continuously circulating inside air of the tub 12. Also, the dishwasher 1 may improve drying efficiency by activating an inner flow field of the tub 12. Thereby, the dishwasher 1 may effectively perform a drying operation without a heater. Compared to the above-described examples, the dishwasher 1 may save energy by omitting a heating process by a heater.

FIG. 5 is an exploded view of an example of a first blower according to an embodiment of the disclosure. FIG. 6 shows the first blower shown in FIG. 5 in another direction. FIG. 7 shows an example of a first inlet cap according to an embodiment of the disclosure. FIG. 8 shows an example of a 1a-th outlet cap according to an embodiment of the disclosure. FIG. 9 shows an example of a 1b-th outlet cap according to an embodiment of the disclosure. FIG. 10 is a top cross-sectional view of an example of a first blower according to an embodiment of the disclosure. FIG. 11 is a view obtained by cutting an example of a first blower according to an embodiment of the disclosure. FIG. 12 is a view obtained by cutting an example of a first blower according to an embodiment of the disclosure.

The first blower 100 may include a first blow fan 110. The first blow fan 110 may generate a blowing force by rotating. For example, the first blow fan 110 may generate a suction force such that inside air of the tub 12 enters the first blower 100. For example, the first blow fan 110 may generate a discharge force such that air entered the first blower 100 is discharged to the tub 12. The first blow fan 110 may also be referred to as a first fan 110. Since the first blow fan 110 may be arranged in a side of the tub, and as illustrated in FIG. 10 the first blow fan 110 may be arranged on an outer side of the tub 12, and therefore may be described as being arranged at the side of the tub 12.

For example, the first blow fan 110 may be an axial flow fan, a mixed flow fan, or a centrifugal fan. However, a kind of the first blow fan 110 is not limited to these, and the first blow fan 110 may have any configuration capable of generating a blowing force to suck inside air of the tub 12 and then discharge the air to the tub 12.

For example, the first blow fan 110 may operate by a first driver 180 (see FIG. 35). For example, the first driver 180 may include a motor capable of rotating forward.

For example, an inlet side 111 of the first blow fan 110 may communicate with the first inlet 150. For example, the inlet side 111 of the first blow fan 110 may face a first inlet cap 130 which will be described below. For example, an outlet side 112 of the first blow fan 110 may communicate with the first flow path 121. For example, the outlet side 112 of the first blow fan 110 may communicate with the second flow path 122.

The first blower 100 may include a first blow duct 120. The first blow duct 120 may guide air blown by the first blow fan 110. The first blow duct 120 may also be referred to as a first duct 120.

For example, the first blow duct 120 may be formed by a first case 120a and a second case 120b. The first case 120a may be detachably coupled to the second case 120b, although not limited thereto. However, the first blow duct 120 may be formed by a single case. For example, the first case 120a and the second case 120b may be integrated into one body.

The first blow duct 120 may form a flow path for guiding air.

For example, the first blow duct 120 may form the first flow path 121 for guiding air blown by the first blow fan 110 toward the opening 12a.

Air flowing on the flow path 121 may be discharged to the inside of the tub 12 through the 1a-th outlet 161. Inside vapor and/or air of the tub 12 may be blown by air discharged through the 1a-th outlet 161 and discharged to the outside of the tub 12 through the opening 12a. At least one part of air discharged through the 1a-th outlet 161 may be discharged to the outside of the tub 12 through the opening 12a. For example, according to coupling of the first case 120a to the second case 120b, a flow path forming portion 1211 of the first case 120a and a flow path forming portion 1212 of the second case 120b may form the first flow path 121.

For example, the first blow duct 120 may form the second flow path 122 for guiding air blown by the first blow fan 110 away from the opening 12a.

Air flowing on the second flow path 122 may be discharged to the inside of the tub 12 through the 1b-th outlet 162, thereby forming a circulation flow of air inside the tub 12. For example, according to coupling of the first case 120a to the second case 120b, a flow path forming portion 1221 of the first case 120a and a flow path forming portion 1222 of the second case 120b may form the second flow path 122.

The first blow duct 120 may include a partition 123. The partition 123 may partition the first flow path 121 of the first blow duct 120 from the second flow path 122 of the first blow duct 120. The partition 123 may prevent air flowing on the first flow path 121 from being mixed with air flowing on the second flow path 122.

For example, the partition 123 may be formed on at least one of the first case 120a or the second case 120b. For example, the first case 120a may include a first partition portion 1231 protruding toward the second case 120b. For example, the second case 120b may include a second partition portion 1232 protruding toward the first case 120a. For example, according to coupling of the first case 120a to the second case 120b, the first partition portion 1231 and the second partition portion 1232 may form the partition 123, although not limited thereto. However, any one of the first partition portion 1231 or the second partition portion 1232 may form the partition 123.

The first blow duct 120 may include a fan installing portion 124. The first blow fan 110 may be installed in the fan installing portion 124. The first blow fan 110 may be detachably coupled to the fan installing portion 124.

The fan installing portion 124 may be positioned at the upstream of the first flow path 121 in the flow direction of air. The fan installing portion 124 may be positioned at the upstream of the second flow path 122 in the flow direction of air.

The first blow duct 120 may include a first communicating portion 1251. The first communicating portion 1251 may communicate with the first inlet 150. The first communicating portion 1251 may communicate the first blow fan 110 with the first inlet cap 130. The first communicating portion 1251 may communicate with the inside of the tub 12. Air sucked through the first inlet 150 may enter the first blow fan 110 through the first communicating portion 1251. Air sucked through the first inlet 150 may enter the inlet side 111 of the first blow fan 110 through the first communicating portion 1251. Air sucked through the first inlet 150 may enter the first blow duct 120 through the first communicating portion 1251.

The first communicating portion 1251 may be positioned at the upstream of the first flow path 121 in the flow direction of air. The first communicating portion 1251 may be positioned at the upstream of the second flow path 122 in the flow direction of air.

The first communicating portion 1251 may correspond to the first inlet cap 130. For example, the first communicating portion 1251 may face the first inlet cap 130. For example, the first communicating portion 1251 may be formed in the first case 120a.

The first blow duct 120 may include a second communicating portion 1252. The second communicating portion 1252 may communicate with the 1a-th outlet 161. The second communicating portion 1252 may communicate with a 1a-th outlet cap 141. The second communicating portion 1252 may communicate with the inside of the tub 12. Air guided by the first blow duct 120 may flow to the 1a-th outlet 161 through the second communicating portion 1252. Air flowing on the first flow path 121 may pass through the second communicating portion 1252 and then be discharged to the inside of the tub 12 through the 1a-th outlet 161.

The second communicating portion 1252 may be positioned at the downstream of the first flow path 121 in the flow direction of air.

The second communicating portion 1252 may correspond to the 1a-th outlet cap 141. For example, the second communicating portion 1252 may face the 1a-th outlet cap 141. For example, the second communicating portion 1252 may be formed in the first case 120a.

The first blow duct 120 may include a third communicating portion 1253. The third communicating portion 1253 may communicate with the 1b-th outlet 162. The third communicating portion 1253 may communicate with the 1b-th outlet cap 142. The third communicating portion 1253 may communicate with the inside of the tub 12. Air guided by the first blow duct 120 may flow to the 1b-th outlet 162 through the third communicating portion 1253. Air flowing on the second flow path 122 may pass through the third communicating portion 1253 and then be discharged to the inside of the tub 12 through the 1b-th outlet 162.

The third communicating portion 1253 may be positioned at the downstream of the second flow path 122 in the flow direction of air.

The third communicating portion 1253 may correspond to a 1b-th outlet cap 142. For example, the third communicating portion 1253 may face the 1b-th outlet cap 142. For example, the third communicating portion 1253 may be formed in the first case 120a.

The first blow duct 120 may include a first cap coupling portion 1261. The first inlet cap 130 may be detachably installed in the first cap coupling portion 1261. For example, the first cap coupling portion 1261 may be formed around the first communicating portion 1251. For example, a plurality of first cap coupling portions 1261 may be provided. For example, the plurality of first cap coupling portions 1261 may be arranged at intervals along a circumference of the first communicating portion 1251.

The first blow duct 120 may include a second cap coupling portion 1262. The 1a-th outlet cap 141 may be detachably installed in the second cap coupling portion 1262. For example, the second cap coupling portion 1262 may be formed around the second communicating portion 1252. For example, a plurality of second cap coupling portions 1262 may be provided. For example, the plurality of second cap coupling portions 1262 may be arranged at intervals along a circumference of the second communicating portion 1252.

The first blow duct 120 may include a third cap coupling portion 1263. The 1b-th outlet cap 142 may be detachably installed in the third cap coupling portion 1263. For example, the third cap coupling portion 1263 may be formed around the third communicating portion 1253. For example, a plurality of third cap coupling portions 1263 may be provided. For example, the plurality of third cap coupling portions 1263 may be arranged at intervals along a circumference of the third communicating portion 1253.

The first blow duct 120 may include a curve portion 127. The curve portion 127 may guide water entered the first blow duct 120 to the tub 12. Water guided through the curve portion 127 may be discharged to the inside of the tub 12 through the first outlet 160. For example, water included in air flowing along the first blow duct 120 and/or washing water entered the first blow duct 120 during a washing operation (or a rinsing operation) may smoothly flow to the inside of the tub 12 by the curve portion 127. Thereby, contamination that may be generated by water remaining in the first blow duct 120 may be prevented.

For example, the curve portion 127 may have a shape inclined downward toward the inside of the tub 12. For example, the curve portion 127 may have a curved shape.

For example, the curve portion 127 may be formed at a lower end portion of the first blow duct 120. For example, the curve portion 127 may face the 1b-th outlet cap 142.

The first blow duct 120 may include a third flow path 128. The third flow path 128 may communicate the first flow path 121 with the second flow path 122. The third flow path 128 may guide water flowing on the first flow path 121 to the second flow path 122. For example, water flowing on the first flow path 121 may be at least one of water included in air or washing water entered the first blow duct 120.

Water flowing on the first flow path 121 may fall toward the second flow path 122 through the third flow path 128. The water fallen toward the second flow path 122 may be discharged to the inside of the tub 12 through the 1b-th outlet 162. That is, water flowing on the first flow path 121 may be smoothly discharged to the inside of the tub 12 without staying in the first flow path 121. Thereby, contamination that may be generated due to water remaining in the first blow duct 120 may be prevented.

For example, according to coupling of the first case 120a to the second case 120b, a flow path forming portion 1281 of the first case 120a and a flow path forming portion 1282 of the second case 120b may form the first flow path 121. The flow path forming portion 1281 of the first case 120a may extend substantially in an up-down direction. The flow path forming portion 1282 of the second case 120b may extend substantially in the up-down direction.

The first blower 100 may include the first inlet cap 130. The first inlet cap 130 may face the first blow fan 110. The first inlet cap 130 may be detachably installed on an inner wall of the first side 12b of the tub 12. The first inlet cap 130 may communicate with the first communicating portion 1251 of the first blow duct 120.

The first inlet cap 130 may suck inside air of the tub 12 by a blowing force of the first blow fan 110. The first inlet cap 130 may form the first inlet 150.

The first inlet cap 130 may include a body portion 131. The body portion 131 may cover the first blow fan 110. The body portion 131 may prevent at least one of foreign materials or washing water of the tub 12 from entering the first blow fan 110. For example, the body portion 131 may prevent washing water from entering the first blow fan 110 during a washing operation and/or a rinsing operation. For example, the body portion 131 may prevent foreign materials (for example, food waste, etc.) existing inside the tub 12 from entering the first blow fan 110. Thereby, the first blow fan 110 may be prevented from being damaged, which increases a life cycle of the first blow fan 110.

The first inlet cap 130 may include a protrusion 132. The protrusion 132 may protrude from the body portion 131 toward the inside of the tub 12. The protrusion 132 may reduce suction pressure by securing a space between the first blow fan 110 and the first inlet 150.

The first inlet cap 130 may include an inlet guide rib 133. The inlet guide rib 133 may be formed on a side of the body portion 131 toward the first blow fan 110. The inlet guide rib 133 may guide air to the first blow fan 110. For example, the inlet guide rib 133 may include a shape inclined downward. For example, the inlet guide rib 133 may include a curved shape.

The inlet guide rib 133 may prevent washing water from entering the first blow fan 110. For example, the inlet guide rib 133 may guide washing water entered the first inlet cap 130 downward between the inner wall of the tub 12 and the first inlet cap 130. Thereby, washing water entered the first inlet cap 130 may flow downward without entering the first blow fan 110. Washing water guided by the inlet guide rib 133 may be discharged to the tub 12 through a discharge hole 135 (see FIG. 6).

The inlet guide rib 133 may reduce flow resistance of air flowing toward the first bow fan 110. Air sucked through the inlet 150 may flow along the curved shape of the inlet guide rib 133 and thereby move smoothly toward the first blow fan 110.

For example, a plurality of inlet guide ribs 133 may be provided. The plurality of inlet guide ribs 133 may be arranged at intervals. The plurality of inlet guide ribs 133 may be arranged in the up-down direction.

The first inlet cap 130 may include a duct coupling portion 134. The duct coupling portion 134 of the first inlet cap 130 may be detachably coupled to the first cap coupling portion 1261 of the first blow duct 120. For example, the duct coupling portion 134 may be fixed to the first cap coupling portion 1261 by rotating in a state of corresponding to the first cap coupling portion 1261. For example, the duct coupling portion 134 may be separated from the first cap coupling portion 1261 by rotating in a state of being fixed to the first cap coupling portion 1261.

The first inlet cap 130 may include the discharge hole 135. The discharge hole 135 may discharge washing water entered inside of the first inlet cap 130. The discharge hole 135 may be formed at a lower end portion of the first inlet cap 130. For example, washing water guided by the inlet guide rib 133 may smoothly flow downward and be discharged to the inside of the tub 12 through the discharge hole 135.

The first blower 100 may include a first outlet cap 140. The first outlet cap 140 may communicate the first blow duct 120 with the inside of the tub 12. The first outlet cap 140 may be detachably installed on the inner wall of the first side 12b of the tub 12.

The first outlet cap 140 may discharge air guided by the first blow duct 120 to the tub 12. The first outlet cap 140 may form the first outlet 160.

For example, the first outlet cap 140 may include the 1a-th outlet cap 141. The 1a-th outlet cap 141 may communicate with the second communicating portion 1252. The 1a-th outlet cap 141 may discharge air flowing on the first flow path 121 to the tub 12. The 1a-th outlet cap 141 may form the 1a-th outlet 161.

The 1a-th outlet cap 141 may include a 1a-th outlet guide rib 1411. The 1a-th outlet guide rib 1411 may induce air guided by the first blow duct 120 to move toward the opening 12a. The 1a-th outlet guide rib 1411 may induce air flowing on the first flow path 121 to move toward the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. In this case, for example, the 1a-th outlet guide rib 1411 may be inclined toward a front, upper direction to guide air toward the opening 12a while the door 11 opens the opening 12a.

For example, a plurality of 1a-th outlet guide ribs 1411 may be provided. The plurality of 1a-th outlet guide ribs 1411 may be arranged at intervals. The 1a-th outlet 161 may be formed between the plurality of 1a-th outlet guide ribs 1411.

The 1a-th outlet cap 141 may include a duct coupling portion 1412. The duct coupling portion 1412 of the 1a-th outlet cap 141 may be detachably coupled to the second cap coupling portion 1262 of the first blow duct 120. For example, the duct coupling portion 1412 may be fixed to the second cap coupling portion 1262 by rotating in a state of corresponding to the second cap coupling portion 1262. For example, the duct coupling portion 1412 may be separated from the second cap coupling portion 1262 by rotating in a state of being fixed to the second cap coupling portion 1262.

For example, the first outlet cap 140 may include a 1b-th outlet cap 142. The 1b-th outlet cap 142 may communicate with the third communicating portion 1253. The 1b-th outlet cap 142 may discharge air flowing on the second flow path 122 to the tub 12. The 1b-th outlet cap 142 may form the 1b-th outlet 162.

The 1b-th outlet cap 142 may include a 1b-th outlet guide rib 1421. The 1b-th outlet guide rib 1421 may induce air guided by the first blow duct 120 to move away from the opening 12a. The 1b-th outlet guide rib 1421 may induce air flowing on the second flow path 122 to move away from the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. In this case, for example, the 1b-th outlet guide rib 1421 may be inclined downward to guide air away from the opening 12a while the door 11 opens the opening 12a.

For example, a plurality of 1b-th outlet guide ribs 1421 may be provided. The plurality of 1b-th outlet guide ribs 1421 may be arranged at intervals. The 1b-th outlet 162 may be formed between the plurality of 1b-th outlet guide ribs 1421.

The 1b-th outlet cap 142 may include a duct coupling portion 1422. The duct coupling portion 1422 of the 1b-th outlet cap 142 may be detachably coupled to the third cap coupling portion 1263 of the first blow duct 120. For example, the duct coupling portion 1422 may be fixed to the third cap coupling portion 1263 by rotating in a state of corresponding to the third cap coupling portion 1263. For example, the duct coupling portion 1422 may be separated from the third cap coupling portion 1263 by rotating in a state of being fixed to the third cap coupling portion 1263.

The first blower 100 may include the first inlet 150 through which inside air of the tub 12 is sucked by the first blow fan 110. The first inlet 150 may be provided at one side of the first flow path 121. The first inlet 150 may be provided at one side of the second flow path 122. The first inlet 150 may be formed by the first inlet cap 130. For example, the first inlet 150 may be formed between the inner wall of the tub 12 and the body portion 131.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. In this case, for example, the first inlet 150 may be positioned at a rear, upper portion of the first side 12b of the tub 12. The first inlet 150 may suck inside air of the tub 12 at a rear portion of the first side 12b of the tub 12, which is relatively distant from the opening 12a, and at an upper portion of the first side 12b of the tub 12, at which a flow velocity of air is high. Thereby, inside air of the tub 12 may flow actively, and drying performance of the dishwasher 1 may be improved. However, this is only an example, and the first inlet 150 is not limited in location as long as the first inlet 150 is capable of sucking inside air of the tub 12.

The first blower 100 may include the first outlet 160 through which air flowing on the flow path formed in the first blow duct 120 is discharged. The first blower 100 may include at least one of the 1a-th outlet 161 or the 1b-th outlet 162.

For example, the first outlet 160 may include the 1a-th outlet 161 through which air flowing on the first flow path 121 is discharged. The 1a-th outlet 161 may be provided at another side of the first flow path 121. The 1a-th outlet 161 may be formed by the 1a-th outlet cap 141. Air discharged through the 1a-th outlet 161 may flow toward the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. For example, the 1a-th outlet 161 may be adjacent to the opening 12a. For example, the 1a-th outlet 161 may be positioned in front of the first inlet 150. The 1a-th outlet 161 may be positioned at a front, upper portion of the first side 12b of the tub 12. The 1a-th outlet 161 may discharge air guided by the first blow duct 120 toward the opening 12a to thus smoothly discharge inside vapor of the tub 12 to the outside of the tub 12. Thereby, inside humidity of the tub 12 may be lowered.

For example, the first outlet 160 may include the 1b-th outlet 162 through which air flowing on the second flow path 122 is discharged. The 1b-th outlet 162 may be provided at another side of the second flow path 122. The 1b-th outlet 162 may be formed by the 1b-th outlet cap 142. Air discharged through the 1b-th outlet 162 may flow away from the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. During a drying operation, the door 11 may open the opening 12a to a preset range. At this time, an upper portion of the tub 12 may be exposed to the outside of the tub 12 through the opening 12a, and a lower portion of the tub 12 may be covered by the door 11 not to be exposed to the outside of the tub 12. Accordingly, the lower portion of the tub 12 may have lower drying efficiency than the upper portion of the tub 12. For example, the 1b-th outlet 162 may be positioned relatively away from the opening 12a, compared to the 1a-th outlet 161. For example, the 1b-th outlet 162 may be positioned below the 1a-th outlet 161. For example, the 1b-th outlet 162 may be positioned below the first inlet 150. The 1b-th outlet 162 may be positioned at a lower portion of the first side 12b of the tub 12. The 1b-th outlet 162 may be positioned at the lower portion of the first side 12b of the tub 12 to discharge air guided by the first blow duct 120 and thereby intensively blow air toward the portion having relatively low drying performance. As a result, drying efficiency of the dishwasher 1 may be improved.

The first blower 100 may include a sealing member 171. The sealing member 171 may prevent air entered the first blow duct 120 from being discharged between the first blow duct 120 and the tub 12. The sealing member 171 may be positioned to correspond to the first inlet cap 130 and seal between the first blow duct 120 and the tub 12.

The first blower 100 may include a sealing member 172. The sealing member 172 may prevent air discharged from the first blow duct 120 from being discharged between the first blow duct 120 and the tub 12. The sealing member 172 may be positioned to correspond to the 1a-th outlet cap 141 and seal between the first blow duct 120 and the tub 12.

The first blower 100 may include a sealing member 173. The sealing member 173 may prevent air discharged from the first blow duct 120 from being discharged between the first blow duct 120 and the tub 12. The sealing member 173 may be positioned to correspond to the 1b-th outlet cap 142 and seal between the first blow duct 120 and the tub 12.

An example of a flow of air will be described with reference to FIGS. 10 and 11.

During a drying operation, the door 11 may open the opening 12a of the tub 12 to a preset range (see FIG. 2). The first blower 100 may operate while the door 11 opens the opening 12a to the preset range. The first blow fan 110 may generate a blowing force by rotating. Inside air of the tub 12 may pass through the first inlet cap 130 and enter the inside of the first blow duct 120 by the blowing force of the first blow fan 110. The air entered the inside of the first blow duct 120 may flow along the flow path formed inside the first blow duct 120. A part of the air entered the inside of the first blow duct 120 may flow along the first flow path 121. A remaining part of the air entered the inside of the first blow duct 120 may flow along the second flow path 122 partitioned from the first flow path 121.

Air guided by the first flow path 121 may pass through the 1a-th outlet cap 141 and be discharged to the inside of the tub 12. Air guided by the first flow path 121 may be guided toward the opening 12a by the 1a-th outlet guide rib 1411 of the 1a-th outlet cap 141. Air discharged through the 1a-th outlet cap 141 may be discharged to the inside of the tub 12 to discharge inside vapor of the tub 12 to the outside of the tub 12. Inside vapor of the tub 12 may be discharged to the outside of the tub 12 through the opening 12a by air discharged through the 1a-th outlet cap 141. At least one part of air discharged through the 1a-th outlet cap 141 may be mixed with inside air and/or vapor of the tub 12 and then discharged to the outside of the tub 12.

Air guided by the second flow path 122 may pass through the 1b-th outlet cap 142 and be discharged to the inside of the tub 12. Air guided by the second flow path 122 may be guided away from the opening 12a by the 1b-th outlet guide rib 1421 of the 1b-th outlet cap 142. Air discharged through the 1b-th outlet cap 142 may be discharged to the inside of the tub 12 to form a circulating airflow inside the tub 12. That is, inside air of the tub 12 may circulate by the first blower 100. Accordingly, inside air of the tub 12 may be mixed thoroughly.

An example of a flow of water entered the inside of the first blower 100 will be described with reference to FIG. 12.

Water flowing on the first flow path 121 may be guided downward along the third flow path 128 formed by the first blow duct 120. The water flowing on the first flow path 121 may fall along the third flow path 128. The water flowing on the first flow path 121 may move to the second flow path 122 via the third flow path 128. The water entered the second flow path 122 may move toward the 1b-th outlet cap 142 by the cover portion 127. The water moved to the 1b-th outlet cap 142 may be discharged to the inside of the tub 12 through the 1b-th outlet 162 formed in the 1b-th outlet cap 152.

FIG. 13 is an exploded view of an example of a second blower according to an embodiment of the disclosure. FIG. 14 shows the second blower shown in FIG. 13 in another direction. FIG. 15 shows an example of a second suction cap according to an embodiment of the disclosure. FIG. 16 shows an example of a second outlet cap according to an embodiment of the disclosure. FIG. 17 is a view obtained by cutting an example of a second blower according to an embodiment of the disclosure. FIG. 18 is a view obtained by cutting an example of a second blower according to an embodiment of the disclosure.

The second blower 200 may include a second blow fan 210. The second blow fan 210 may generate a blowing force by rotating. For example, the second blow fan 210 may generate a suction force such that inside air of the tub 12 enters the second blower 200. For example, the second blow fan 210 may generate a discharge force such that air entered the second blower 200 is discharged to the tub 12. The second blow fan 210 may also be referred to as a second fan 210.

For example, the second blow fan 210 may be an axial flow fan, a mixed flow fan, or a centrifugal fan. However, a kind of the second blow fan 210 is not limited to these, and the second blow fan 210 may have any configuration capable of generating a blowing force to suck inside air of the tub 12 and then discharge the air to the tub 12.

For example, the second blow fan 210 may operate by a second driver 280 (see FIG. 35). For example, the second driver 210 may include a motor capable of rotating forward.

For example, an inlet side 211 of the second blow fan 210 may communicate with the second inlet 250. For example, the inlet side 211 of the second blow fan 210 may face a second inlet cap 230 which will be described below. For example, an outlet side 212 of the second blow fan 210 may communicate with the first flow path 221. For example, the outlet side 212 of the second blow fan 110 may communicate with the second flow path 222.

The second blower 200 may include a second blow duct 220. The second blow duct 220 may guide air blown by the second blow fan 210. The second blow duct 220 may also be referred to as a second duct 220.

For example, the second blow duct 220 may be formed by a first case 220a and a second case 220b. The first case 220a may be detachably coupled to the second case 220b, although not limited thereto. However, the second blow duct 220 may be formed by a single case. For example, the first case 220a and the second case 220b may be integrated into one body.

The second blow duct 220 may form a flow path for guiding air.

For example, the second blow duct 220 may form the first flow path 221 to guide air blown by the second blow fan 210 away from the opening 12a.

Air flowing on the first flow path 221 may be discharged to the inside of the tub 12 through the 2a-th outlet 261 to form a circulation flow of inside air of the tub 12. For example, according to coupling of the first case 220a to the second case 220b, a flow path forming portion 2211 of the first case 220a and a flow path forming portion 2212 of the second case 220b may form the first flow path 221.

For example, the second blow duct 220 may form the second flow path 222 to guide air away from the opening 12a.

Air flowing on the second flow path 222 may be discharged to the inside of the tub 12 through the 2b-th outlet 262 to form a circulating airflow inside the tub 12. For example, according to coupling of the first case 220a to the second case 220b, a flow path forming portion 2221 of the first case 220a and a flow path forming portion 2222 of the second case 220b may form the second flow path 222.

The second blow duct 220 may include a partition 223. The partition 223 may partition the first flow path 221 of the second blow duct 220 from the second flow path 222 of the second blow duct 220. The partition 223 may prevent air flowing on the first flow path 221 from being mixed with air flowing on the second flow path 222.

For example, the partition 223 may be formed on at least one of the first case 220a or the second case 220b. For example, the first case 220a may include a first partition portion 2231 protruding toward the second case 220b. For example, the second case 220b may include a second partition portion 2232 protruding toward the first case 220a. For example, according to coupling of the first case 220a to the second case 220b, the first partition portion 2231 and the second partition portion 2232 may form the partition 223, although not limited thereto. However, any one of the first partition portion 2231 or the second partition portion 2232 may form the partition 223.

The second blow duct 220 may include a fan installing portion 224. The second blow fan 210 may be installed in the fan installing portion 224. The second blow fan 220 may be detachably coupled to the fan installing portion 224.

The fan installing portion 224 may be positioned at the upstream of the first flow path 221 in the flow direction of air. The fan installing portion 224 may be positioned at the upstream of the second flow path 222 in the flow direction of air.

The second blow duct 220 may include a first communicating portion 2251. The first communicating portion 2251 may communicate with the second inlet 250. The first communicating portion 2251 may communicate the second blow fan 210 with the second inlet cap 230. The first communicating portion 2251 may communicate with the inside of the tub 12. Air sucked through the second inlet 250 may enter the second blow fan 210 through the first communicating portion 2251. Air sucked through the first inlet 120 may enter the inlet side 211 of the second blow fan 210 through the first communicating portion 2251. Air sucked through the second inlet 250 may enter the second blow duct 220 through the first communicating portion 2251.

The first communicating portion 2251 may be positioned at the upstream of the first flow path 221 in the flow direction of air. The first communicating portion 2251 may be positioned at the upstream of the second flow path 222 in the flow direction of air.

The first communicating portion 2251 may correspond to the second inlet cap 230. For example, the first communicating portion 2251 may face the second inlet cap 230. For example, the first communicating portion 1251 may be formed in the first case 220a.

The second blow duct 220 may include a second communicating portion 2252.

The second communicating portion 2252 may communicate with the 2a-th outlet 261. The second communicating portion 2252 may communicate with a 2a-th outlet cap 241. The second communicating portion 2252 may communicate with the inside of the tub 12. Air guided by the second blow duct 220 may flow to the 2a-th outlet 261 through the second communicating portion 2252. Air flowing on the first flow path 221 may pass through the second communicating portion 2252 and then be discharged to the inside of the tub 12 through the 2a-th outlet 261.

The second communicating portion 2252 may be provided at the downstream of the first flow path 221 in the flow direction of air.

The second communicating portion 2252 may correspond to the 2a-th outlet cap 241. For example, the second communicating portion 2252 may face the 2a-th outlet cap 241. For example, the second communicating portion 2252 may be formed in the first case 220a.

The second blow duct 220 may include a third communicating portion 2253.

The third communicating portion 2253 may communicate with the 2b-th outlet 262. The third communicating portion 2253 may communicate with the 2b-th outlet cap 242. The third outlet cap 2253 may communicate with the inside of the tub 12. Air guided by the second blow duct 220 may flow to the 2b-th outlet 262 through the third communicating portion 2253. Air flowing on the second flow path 222 may pass through the third communicating portion 2253 and then be discharged to the inside of the tub 12 through the 2b-th outlet 262.

The third communicating portion 2253 may be positioned at the downstream of the second flow path 222 in the flow direction of air.

The third communicating portion 2253 may correspond to the 2b-th outlet cap 242. For example, the third communicating portion 2253 may face the 2b-th outlet cap 242. For example, the third communicating portion 2253 may be formed in the first case 220a.

The second blow duct 220 may include a first cap coupling portion 2261. The second inlet cap 230 may be detachably installed in the first cap coupling portion 2261. For example, the first cap coupling portion 2261 may be formed around the first communicating portion 2251. For example, a plurality of first cap coupling portions 2261 may be provided. For example, the plurality of first cap coupling portions 2261 may be arranged at intervals along a circumference of the first communicating portion 2251.

The second blow duct 220 may include a second cap coupling portion 2262. The 2a-th outlet cap 241 may be detachably installed in the second cap coupling portion 2262. For example, the second cap coupling portion 2262 may be formed around the second communicating portion 2252. For example, a plurality of second cap coupling portions 2262 may be provided. For example, the plurality of second cap coupling portions 2262 may be arranged at intervals along a circumference of the second communicating portion 2252.

The second blow duct 220 may include a third cap coupling portion 2263. The 2b-th outlet cap 242 may be detachably installed in the third cap coupling portion 2263. For example, the third cap coupling portion 2263 may be formed around the third communicating portion 2253. For example, a plurality of third cap coupling portions 2263 may be provided. For example, the plurality of third cap coupling portions 2263 may be arranged at intervals along a circumference of the third communicating portion 2253.

The second blow duct 220 may include a curve portion 227. The curve portion 227 may guide water entered the inside of the second blow duct 220 to the tub 12. The water guided by the curve portion 227 may be discharged to the inside of the tub 12 through the second outlet 260. For example, water included in air flowing along the second blow duct 220 and/or washing water entered the second blow duct 220 during a washing operation (or a rinsing operation) may smoothly flow to the inside of the tub 12 by the curve portion 227. Thereby, contamination that may be generated by water remaining in the second blow duct 220 may be prevented.

For example, the curve portion 227 may have a shape inclined downward toward the inside of the tub 12. For example, the curve portion 227 may have a curved shape.

For example, the curve portion 227 may be formed in a lower end portion of the second blow duct 220. For example, the curve portion 227 may face the 2a-th outlet cap 241. For example, the curve portion 227 may face the 2b-th outlet cap 242.

The second blow duct 120 may include the second inlet cap 230. The second inlet cap 230 may face the second blow fan 210. The second inlet cap 230 may be detachably installed on the inner wall of the second side 12c of the tub 12. The second inlet cap 230 may communicate with the first communicating portion 2251 of the second blow duct 220.

The second inlet cap 230 may suck inside air of the tub 12 by a blowing force of the second blow fan 210. The second inlet cap 230 may form the second inlet 250.

The second inlet cap 230 may include a body portion 231. The body portion 231 may cover the second blow fan 210. The body portion 231 may prevent at least one of foreign materials or washing water of the tub 12 from entering the second blow fan 210. For example, the body portion 231 may prevent washing water from entering the second blow fan 210 during a washing operation and/or a rinsing operation. For example, the body portion 231 may prevent foreign materials (for example, food waste, etc.) existing inside the tub 12 from entering the second blow fan 210. Thereby, the second blow fan 210 may be prevented from being damaged, which increases a life cycle of the second blow fan 210.

The second inlet cap 230 may include a protrusion 232. The protrusion 232 may protrude from the body portion 231 toward the inside of the tub 12. The protrusion 232 may reduce suction pressure by securing a space between the second blow fan 210 and the second inlet 250.

The second inlet cap 230 may include an inlet guide rib 233. The inlet guide rib 233 may be formed on a side of the body portion 231 toward the second blow fan 210. The inlet guide rib 233 may guide air to the second blow fan 210. For example, the inlet guide rib 233 may include a shape inclined downward. For example, the inlet guide rib 233 may include a curved shape.

The inlet guide rib 233 may prevent washing water from entering the second blow fan 210. For example, the inlet guide rib 233 may guide washing water entered the second inlet cap 230 downward between the inner wall of the tub 12 and the second inlet cap 230. Thereby, washing water entered the second inlet cap 230 may flow downward without entering the second blow fan 210. Washing water guided by the inlet guide rib 233 may be discharged to the tub 12 through a discharge hole 235 (see FIG. 14).

The inlet guide rib 233 may reduce flow resistance of air flowing toward the second bow fan 210. Air sucked through the second inlet 250 may flow along the curved shape of the inlet guide rib 233 and thereby move smoothly toward the second blow fan 210.

For example, a plurality of inlet guide ribs 233 may be provided. The plurality of inlet guide ribs 233 may be arranged at intervals. The plurality of inlet guide ribs 233 may be arranged in the up-down direction.

The second inlet cap 230 may include a duct coupling portion 234. The duct coupling portion 234 of the second inlet cap 230 may be detachably coupled to the first cap coupling portion 2261 of the second blow duct 220. For example, the duct coupling portion 234 may be fixed to the first cap coupling portion 2261 by rotating in a state of corresponding to the first cap coupling portion 2261. For example, the duct coupling portion 234 may be separated from the first cap coupling portion 2261 by rotating in a state of being fixed to the first cap coupling portion 2261.

The second inlet cap 230 may include the discharge hole 235. The discharge hole 235 may discharge washing water entered inside of the second inlet cap 230. The discharge hole 235 may be formed at a lower end portion of the second inlet cap 230. For example, washing water guided by the inlet guide rib 233 may smoothly flow downward and be discharged to the inside of the tub 12 through the discharge hole 235.

The second blower 200 may include a second outlet cap 240. The second outlet cap 240 may communicate the second blow duct 220 with the inside of the tub 12. The second outlet cap 240 may be detachably installed on the inner wall of the second side 12c of the tub 12.

The second outlet cap 240 may discharge air guided by the second blow duct 220 to the tub 12. The second outlet cap 240 may form the second outlet 260.

For example, the second outlet cap 140 may include the 2a-th outlet cap 241. The 2a-th outlet cap 241 may communicate with the second communicating portion 2252. The 2a-th outlet cap 241 may discharge air flowing on the first flow path 221 to the tub 12. The 2a-th outlet cap 241 may form the 2a-th outlet 261.

The 2a-th outlet cap 241 may include a 2a-th outlet guide rib 2411. The 2a-th outlet guide rib 2411 may induce air guided by the second blow duct 220 to move away from the opening 12a. The 2a-th outlet guide rib 2411 may induce air flowing on the first flow path 221 to move away from the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. In this case, for example, the 2a-th outlet guide rib 2411 may be inclined downward to guide air away from the opening 12a while the door 11 opens the opening 12a.

For example, a plurality of 2a-th outlet guide ribs 2411 may be provided. The plurality of 2a-th outlet guide ribs 2411 may be arranged at intervals. The 2a-th outlet 261 may be formed between the plurality of 2a-th outlet guide ribs 2411.

The 2a-th outlet cap 241 may include a duct coupling portion 2412. The duct coupling portion 2412 of the 2a-th outlet cap 241 may be detachably coupled to the second cap coupling portion 2262 of the second blow duct 220. For example, the duct coupling portion 2412 may be fixed to the second cap coupling portion 2262 by rotating in a state of corresponding to the second cap coupling portion 2262. For example, the duct coupling portion 2412 may be separated from the second cap coupling portion 2262 by rotating in a state of being fixed to the second cap coupling portion 2262.

For example, the second outlet cap 240 may include the 2b-th outlet cap 242. The 2b-th outlet cap 242 may communicate with the third communicating portion 2253. The 2b-th outlet cap 242 may discharge air flowing on the second flow path 222 to the tub 12. The 2b-th outlet cap 242 may form the 2b-th outlet 262.

The 2b-th outlet cap 242 may include a 2b-th outlet guide rib 2421. The 2b-th outlet guide rib 2421 may induce air guided by the second blow duct 220 to move away from the opening 12a. The 2b-th outlet guide rib 2421 may induce air flowing on the second flow path 222 to move away from the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. In this case, for example, the 2b-th outlet guide rib 2421 may be inclined downward to guide air away from the opening 12a while the door 11 opens the opening 12a.

For example, a plurality of 2b-th outlet guide ribs 2421 may be provided. The plurality of 2b-th outlet guide ribs 2421 may be arranged at intervals. The 2b-th outlet 262 may be formed between the plurality of 2b-th outlet guide ribs 2421.

The 2b-th outlet cap 242 may include a duct coupling portion 2422. The duct coupling portion 2422 of the 2b-th outlet cap 242 may be detachably coupled to the third cap coupling portion 2263 of the second blow duct 220. For example, the duct coupling portion 2422 may be fixed to the third cap coupling portion 2263 by rotating in a state of corresponding to the third cap coupling portion 2263. For example, the duct coupling portion 2422 may be separated from the third cap coupling portion 2263 by rotating in a state of being fixed to the third cap coupling portion 2263.

The second blower 200 may include the second inlet 250 through which inside air of the tub 12 is sucked by the second blow fan 210. The second inlet 250 may be provided at one side of the first flow path 221. The second inlet 250 may be provided at one side of the second flow path 222. The second inlet 250 may be formed by the second inlet cap 230. For example, the second inlet 250 may be formed between the inner wall of the tub 12 and the body portion 231.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. In this case, for example, the second inlet 250 may be positioned at a rear, upper portion of the second side 12c of the tub 12. The second inlet 250 may suck inside air of the tub 12 at a rear portion of the second side 12c of the tub 12, which is relatively distant from the opening 12a, and at an upper portion of the second side 12c of the tub 12, at which a flow velocity of air is high. Thereby, inside air of the tub 12 may flow actively, and drying performance of the dishwasher 1 may be improved. However, this is only an example, and the second inlet 250 is not limited in location as long as the second inlet 250 is capable of sucking inside air of the tub 12.

The first blower 200 may include the second outlet 260 through which air flowing on the flow path formed in the second blow duct 220 is discharged. The second blower 200 may include at least one of the 2a-th outlet 261 or the 2b-th outlet 262.

For example, the second outlet 260 may include the 2a-th outlet 261 through which air flowing on the first flow path 221 is discharged. The 2a-th outlet 261 may be provided at another side of the first flow path 221. The 2a-th outlet 261 may be formed by the 2a-th outlet cap 141. Air discharged through the 2a-th outlet 261 may flow away from the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. During a drying operation, the door 11 may open the opening 12a to a preset range. At this time, the upper portion of the tub 12 may be exposed to the outside of the tub 12 through the opening 12a, and the lower portion of the tub 12 may be covered by the door 11 not to be exposed to the outside of the tub 12. Accordingly, the lower portion of the tub 12 may have lower drying efficiency than the upper portion of the tub 12. For example, the 2a-th outlet 261 may be positioned away from the opening 12a. For example, the 2a-th outlet 261 may be positioned below the second inlet 250. The 2a-th outlet 261 may be positioned at a lower portion of the second side 12c of the tub 12. The 2a-th outlet 261 may be positioned at a rear, lower portion of the second side 12c of the tub 12. The 2a-th outlet 261 may intensively blow air toward the portion having relatively low drying performance. As a result, drying efficiency of the dishwasher 1 may be improved.

For example, the second outlet 260 may include the 2b-th outlet 262 through which air flowing on the second flow path 222 is discharged. The 2b-th outlet 262 may be provided at another side of the second flow path 222. The 2b-th outlet 262 may be formed by the 2b-th outlet cap 242. Air discharged through the 2-th outlet 262 may flow away from the opening 12a.

For example, the opening 12a may be formed in the front side of the tub 12, and the upper portion of the door 11 may be rotatable on the lower portion of the door 11 with respect to the tub 12. During a drying operation, the door 11 may open the opening 12a to a preset range. At this time, the upper portion of the tub 12 may be exposed to the outside of the tub 12 through the opening 12a, and the lower portion of the tub 12 may be covered by the door 11 not to be exposed to the outside of the tub 12. Accordingly, the lower portion of the tub 12 may have lower drying efficiency than the upper portion of the tub 12. For example, the 2b-th outlet 262 may be positioned below the second inlet 250. For example, the 2b-th outlet 262 may be positioned in the front-rear direction with respect to the 2a-th outlet 261. For example, the 2b-th outlet 262 may be positioned in front of the 2a-th outlet 261. The 2b-th outlet 262 may be positioned at the lower portion of the second side 12c of the tub 12. The 2b-th outlet 262 may intensively blow air toward the portion having relatively low drying performance. As a result, drying efficiency of the dishwasher 1 may be improved.

For example, the 2b-th outlet cap 242 may be a substantially same as the 2a-th outlet cap 241 except for a location. For example, the 2b-th outlet 262 may be a substantially same as the 2a-th outlet 261 except for a location. The second blower 200 may intensively blow air toward the lower portion of the tub 12 through the 2a-th outlet 261 and the 2b-th outlet 262. Thereby, drying efficiency at the lower portion of the tub 12 may be improved. Dishes located at the lower portion of the tub 12 may be effectively dried.

The second blower 200 may include a sealing member 271. The sealing member 271 may prevent air entered the second blow duct 220 from being discharged between the second blow duct 220 and the tub 12. The sealing member 271 may be positioned to correspond to the second inlet cap 230 and seal between the second blow duct 220 and the tub 12.

The second blower 200 may include a sealing member 272. The sealing member 272 may prevent air discharged from the second blow duct 220 from being discharged between the second blow duct 220 and the tub 12. The sealing member 272 may be positioned to correspond to the 2a-th outlet cap 241 and seal between the second blow duct 220 and the tub 12.

The second blower 200 may include a sealing member 273. The sealing member 273 may prevent air discharged from the second blow duct 220 from being discharged between the second blow duct 220 and the tub 12. The sealing member 273 may be positioned to correspond to the 2b-th outlet cap 242 and seal between the second blow duct 220 and the tub 12.

An example of a flow of air will be described with reference to FIGS. 17 and 18.

During a drying operation, the door 11 may open the opening 12a of the tub 12 to a preset range (see FIG. 2). The second blower 200 may operate while the door 11 opens the opening 12a of the tub 12 to the preset range. The second blow fan 210 may generate a blowing force by rotating. Inside air of the tub 12 may pass through the second inlet cap 230 and enter the inside of the second blow duct 220 by the blowing force of the second blow fan 210. The air entered the inside of the second blow duct 220 may flow along the flow path formed inside the second blow duct 220. A part of the air entered the inside of the second blow duct 220 may flow along the first flow path 221. A remaining part of the air entered the inside of the second blow duct 220 may flow along the second flow path 222 partitioned from the first flow path 221.

Air guided by the first flow path 221 may pass through the 2a-th outlet cap 241 and be discharged to the inside of the tub 12. Air guided by the first flow path 221 may be guided away from the opening 12a by the 2a-th outlet guide rib 2411 of the 2a-th outlet cap 241. Air discharged through the 2a-th outlet cap 241 may be discharged to the inside of the tub 12 to form a circulating airflow inside the tub 12. Accordingly, inside air of the tub 12 may be mixed thoroughly.

Air guided by the second flow path 222 may pass through the 2b-th outlet cap 242 and then be discharged to the inside of the tub 12. Air guided by the second flow path 222 may be guided away from the opening 12a by the 2b-th outlet guide rib 2421 of the 2b-th outlet cap 242. Air discharged through the 2b-th outlet cap 242 may be discharged to the inside of the tub 12 to form a circulating airflow inside the tub 12. Accordingly, inside air of the tub 12 may be mixed thoroughly.

Various examples of the blower will be described with reference to FIGS. 19 to 33. Like reference numerals may represent members or components that perform the substantially same functions, and overlapping descriptions thereof will be omitted.

Referring to FIG. 19, the dishwasher 1 may include a first blower 100a and a second blower 200a.

The first blower 100a may guide air sucked from the inside of the tub 12 toward the front direction of the tub 12. For example, air guided toward the front direction by the first blower 100a may be discharged toward the opening 12a of the tub 12. The first blower 100a may not include the 1b-th outlet cap 142, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200a may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200a may be discharged away from the opening 12a inside the tub 12. The second blower 200a may not include the 2b-th outlet cap 242, compared to the second blower 200 (see FIGS. 3, 4 and 13 to 18) described above.

Unlike the drawing, the first blower 100a may be positioned in the second side 12c, and the second blower 200a may be positioned in the first side 12b.

Referring to FIG. 20, the dishwasher 1 may include the first blower 100a and a second blower 200b.

The first blower 100a may guide air sucked from the inside of the tub 12 toward the front direction of the tub 12. For example, air guided toward the front direction by the first blower 100a may be discharged toward the opening 12a inside the tub 12. The first blower 100a may not include the 1b-th outlet cap 142, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200b may guide air sucked from the inside of the tub 12 toward a lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200b may be discharged away from the opening 12a inside the tub 12. The second blower 200b may be the same as the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100a may be positioned in the second side 12c, and the second blower 200b may be positioned in the first side 12b.

Referring to FIG. 21, the dishwasher 1 may include the first blower 100a and a second blower 200c.

The first blower 100a may guide air sucked from the inside of the tub 12 toward the front direction of the tub 12. For example, air guided toward the front direction by the first blower 100a may be discharged toward the opening 12a inside the tub 12. The first blower 100a may not include the 1b-th outlet cap 142, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200c may guide air sucked from the inside of the tub 12 toward a front, upper direction of the tub 12. The second blower 200c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200c may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200c may be discharged away from the opening 12a inside the tub 12. The second blower 200c may not include the 2b-th outlet cap 242 and may further include an outlet cap that is positioned in a front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100a may be positioned in the second side 12c, and the second blower 200c may be positioned in the first side 12b.

Referring to FIG. 22, the dishwasher 1 may include the first blower 100a and a second blower 200d.

The first blower 100a may guide air sucked from the inside of the tub 12 toward the front direction of the tub 12. For example, air guided toward the front direction by the first blower 100a may be discharged toward the opening 12a inside the tub 12. The first blower 100a may not include the 1b-th outlet cap 142, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200d may be discharged away from the opening 12a inside the tub 12. The second blower 200d may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100a may be positioned in the second side 12c, and the second blower 200d may be positioned in the first side 12b.

Referring to FIG. 23, the dishwasher 1 may include a first blower 100b and the second blower 200a.

The first blower 100b may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100b may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100b may be discharged away from the opening 12a inside the tub 12. The first blower 100b may be the same as the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200a may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200a may be discharged away from the opening 12a inside the tub 12. The second blower 200a may not include the 2b-th outlet cap 242, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100b may be positioned in the second side 12c, and the second blower 200a may be positioned in the first side 12b.

Referring to FIG. 24, the dishwasher 1 may include the first blower 100b and the second blower 200c.

The first blower 100b may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100b may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100b may be discharged away from the opening 12a inside the tub 12. The first blower 100b may be the same as the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. Air guided toward the front, upper direction by the second blower 200c may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200c may be discharged away from the opening 12a inside the tub 12. The second blower 200c may not include the 2b-th outlet cap 242 and may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100b may be positioned in the second side 12c, and the second blower 200c may be positioned in the first side 12b.

Referring to FIG. 25, the dishwasher 1 may include the first blower 100b and the second blower 200d.

The first blower 100b may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100b may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. Air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100b may be discharged away from the opening 12a inside the tub 12. The first blower 100b may be the same as the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200d may be discharged away from the opening 12a inside the tub 12. The second blower 200d may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100b may be positioned in the second side 12c, and the second blower 200d may be positioned in the first side 12b.

Referring to FIG. 26, the dishwasher 1 may include a first blower 100c and the second blower 200a.

The first blower 100c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100c may be discharged away from the opening 12a inside the tub 12. The 1b-th outlet cap 142 of the first blower 100c may be positioned in the rear, lower portion of the first side 12b of the tub 12, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200a may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200a may be discharged away from the opening 12a inside the tub 12. The second blower 200a may not include the 2b-th outlet cap 242, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100c may be positioned in the second side 12c, and the second blower 200a may be positioned in the first side 12b.

Referring to FIG. 27, the dishwasher 1 may include the first blower 100c and the second blower 200b.

The first blower 100c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100c may be discharged away from the opening 12a inside the tub 12. The 1b-th outlet cap 142 of the first blower 100c may be positioned in the rear, lower portion of the first side 12b of the tub 12, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200b may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200b may be discharged away from the opening 12a inside the tub 12. The second blower 200b may be the same as the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100c may be positioned in the second side 12c, and the second blower 200b may be positioned in the first side 12b.

Referring to FIG. 28, the dishwasher 1 may include the first blower 100c and the second blower 200c.

The first blower 100c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100c may be discharged away from the opening 12a inside the tub 12. The 1b-th outlet cap 142 of the first blower 100c may be positioned in the rear, lower portion of the first side 12b of the tub 12, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200c may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200c may be discharged away from the opening 12a inside the tub 12. The second blower 200c may not include the 2b-th outlet cap 242 and may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100c may be positioned in the second side 12c, and the second blower 200c may be positioned in the first side 12b.

Referring to FIG. 29, the dishwasher 1 may include the first blower 100c and the second blower 200d.

The first blower 100c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100b may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100b may be discharged away from the opening 12a inside the tub 12. The 1b-th outlet cap 142 of the first blower 100c may be positioned in the rear, lower portion of the first side 12b of the tub 12, compared to the first blower 100 (see FIGS. 3 to 12) described above.

The second blower 200d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200d may be discharged away from the opening 12a inside the tub 12. The second blower 200d may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100c may be positioned in the second side 12c, and the second blower 200d may be positioned in the first side 12b.

Referring to FIG. 30, the dishwasher 1 may include a first blower 100d and the second blower 200a.

The first blower 100d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100d may be discharged away from the opening 12a inside the tub 12. The first blower 100d may include a plurality of 1b-th outlet caps 142, compared to the first blower 100 (see FIGS. 3 to 12) described above. For example, any one of the plurality of 1b-th outlet caps 142 may be positioned in the front, lower portion of the first side 12b. For example, another one of the plurality of 1b-th outlet caps 142 may be positioned in the rear, lower portion of the first side 12b of the tub 12.

The second blower 200a may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200a may be discharged away from the opening 12a inside the tub 12. The second blower 200a may not include the 2b-th outlet cap 242, compared to the second blower 200 (see FIGS. 3, 4 and 13 to 18) described above.

Unlike the drawing, the first blower 100d may be positioned in the second side 12c, and the second blower 200a may be positioned in the first side 12b.

Referring to FIG. 31, the dishwasher 1 may include the first blower 100d and the second blower 200b.

The first blower 100d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100d may be discharged away from the opening 12a inside the tub 12. The first blower 100d may include a plurality of 1b-th outlet caps 142, compared to the first blower 100 (see FIGS. 3 to 12) described above. For example, any one of the plurality of 1b-th outlet caps 142 may be positioned in the front, lower portion of the first side 12b of the tub 12. For example, another one of the plurality of 1b-th outlet caps 142 may be positioned in the rear, lower portion of the first side 12b of the tub 12.

The second blower 200b may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the lower direction by the second blower 200b may be discharged away from the opening 12a inside the tub 12. The second blower 200b may be the same as the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100d may be positioned in the second side 12c, and the second blower 200b may be positioned in the first side 12b.

Referring to FIG. 32, the dishwasher 1 may include the first blower 100d and the second blower 200c.

The first blower 100d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100d may be discharged away from the opening 12a inside the tub 12. The first blower 100d may include a plurality of 1b-th outlet caps 142, compared to the first blower 100 (see FIGS. 3 to 12) described above. For example, any one of the plurality of 1b-th outlet caps 142 may be positioned in the front, lower portion of the first side 12b of the tub 12. For example, another one of the plurality of 1b-th outlet caps 142 may be positioned in the rear, lower portion of the first side 12b of the tub 12.

The second blower 200c may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200c may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200c may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200c may be discharged away from the opening 12a inside the tub 12. The second blower 200c may not include the 2b-th outlet cap 242 and may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100d may be positioned in the second side 12c, and the second blower 200c may be positioned in the first side 12b.

Referring to FIG. 33, the dishwasher 1 may include the first blower 100d and the second blower 200d.

The first blower 100d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The first blower 100d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the first blower 100d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the first blower 100d may be discharged away from the opening 12a inside the tub 12. The first blower 100d may include a plurality of 1b-th outlet caps 142, compared to the first blower 100 (see FIGS. 3 to 12) described above. For example, any one of the plurality of 1b-th outlet caps 142 may be positioned in the front, lower portion of the first side 12b of the tub 12. For example, another one of the plurality of 1b-th outlet caps 142 may be positioned in the rear, lower portion of the first side 12b of the tub 12.

The second blower 200d may guide air sucked from the inside of the tub 12 toward the front, upper direction of the tub 12. The second blower 200d may guide air sucked from the inside of the tub 12 toward the lower direction of the tub 12. For example, air guided toward the front, upper direction by the second blower 200d may be discharged toward the opening 12a inside the tub 12. For example, air guided toward the lower direction by the second blower 200d may be discharged away from the opening 12a inside the tub 12. The second blower 200d may further include an outlet cap that is positioned in the front, upper portion of the second side 12c of the tub 12, compared to the second blower 200 (see FIGS. 3, 4, and 13 to 18) described above.

Unlike the drawing, the first blower 100d may be positioned in the second side 12c, and the second blower 200d may be positioned in the first side 12b.

FIGS. 19 to 33 show only examples, and the various examples of the blower, as shown in FIGS. 19 to 33, may be combined with each other.

In the drawings, each of the first blowers 100a, 100b, 100c, and 100d is shown to suck inside air of the tub 12 at a location, although not limited thereto. However, each of the first blowers 100a, 100b, 100c, and 100d may suck inside air of the tub 12 at two or more locations. That is, each of the first blowers 100a, 100b, 100c, and 100d may include two or more first inlet caps 130.

Although not shown in the drawings, each of the first blowers 100a, 100b, 100c, and 100d may discharge air toward the rear, upper direction inside the tub 12. For example, the first outlet cap 140 may be positioned in the rear, upper portion of the first side 12b of the tub 12.

In the drawings, each of the second blowers 200a, 200b, 200c, and 200d is shown to suck inside air of the tub 12 at a location, although not limited thereto. However, for example, each of the second blowers 200a, 200b, 200c, and 200d may suck air at two or more locations. That is, each of the second blowers 200a, 200b, 200c, and 200d may include two or more inlet caps 230.

Although not shown in the drawings, each of the second blowers 200a, 200b, 200c, and 200d may discharge air toward the rear, upper direction inside the tub 12. For example, the second outlet cap 240 may be positioned in the rear, upper portion of the second side 12c of the tub 12.

FIG. 34 shows an example of an operation cycle of a dishwasher according to an embodiment of the disclosure and an example of an operation cycle of a dishwasher according to a comparative example.

Generally, a dishwasher may perform a washing operation of washing dishes with water and a detergent, a rinsing operation of rinsing the dishes, and a drying operation of removing water remaining on the dishes. The rinsing operation may be configured with a primary rinsing operation for removing a detergent remaining on dishes during a washing operation and a secondary rinsing operation for finally rinsing the dishes after draining water used during the primary rinsing operation.

Referring to an example of an operation cycle of a dishwasher according to a comparative example, a task for heating washing water by operating a heater during a secondary rinsing operation may be performed. By heating washing water during a secondary rinsing operation to spray high-temperature washing water to dishes, inside temperature of a tub may rise to facilitate evaporation of water remaining on the dishes. Through condensation drying and natural convection drying by opening a door after secondary rinsing, a drying operation may be performed. The dishwasher according to the comparative example may require great energy for a process of heating washing water during secondary rinsing. Accordingly, the dishwasher may have low energy efficiency. Also, there may be difficulties in effectively removing water remaining inside the tub and on the dishes only through condensation drying and natural convection drying. For example, a drying time of the dishwasher may increase. For example, remaining water resulting from ineffective drying of the dishwasher may cause contamination, a mold, damage to components, etc.

Referring to an example of an operation cycle of the dishwasher 1 according to an embodiment of the disclosure, a task of heating washing water during a secondary rinsing operation may be omitted. Also, the dishwasher 1 may perform a drying operation through condensation drying and natural convection drying by opening the door, and finally perform forced convection drying by using the blower 80. For example, the dishwasher 1 may include the first blower 100 and the second blower 200. For example, the dishwasher 1 may easily discharge inside vapor of the tub 12 to the outside of the tub 12, while circulating inside air of the tub 12 to intensively blow air toward a portion having low drying efficiency. In summary, the dishwasher 1 may save energy that is consumed to heat washing water during a secondary rinsing operation. Also, the dishwasher 1 may effectively remove water remaining inside the tub 12 and on dishes through forced convection drying. The dishwasher 1 may increase drying efficiency by causing forced convection inside the tub 12.

FIG. 35 shows an example of a control block diagram of a dishwasher according to an embodiment of the disclosure.

Referring to FIG. 35, the dishwasher 1 may include the controller 300. The dishwasher 1 may include an inputter 410. The dishwasher 1 may include a display 420. The dishwasher 1 may include a turbidity sensor 500. The dishwasher 1 may include a temperature sensor 600. The dishwasher 1 may include a humidity sensor 700. The dishwasher 1 may include a communicator 800. The dishwasher 1 may include the first blower 100. The dishwasher 1 may include the second blower 200.

However, any one(s) of components shown in FIG. 35 may be omitted from the dishwasher 1 according to some embodiments of the disclosure. Also, another component(s) not shown in FIG. 35 may be added to the dishwasher 1 according to some embodiments of the disclosure.

The controller 300 may control operations of the dishwasher 1. The controller 300 may control various components of the dishwasher 1. The controller 300 may control various components of the dishwasher 1 to perform an operation cycle including a washing operation, a rinsing operation and/or a drying operation, etc.

The controller 300 may include a memory 320 storing data in the form of an algorithm and/or program for controlling operations of various components of the dishwasher 1.

The controller 300 may include a processor 310 for performing operations of the dishwasher 1 by using the data stored in the memory 320.

The inputter 410 may receive an input from a user. The inputter 410 may provide an electrical output signal corresponding to a user input to the controller 300. For example, the inputter 410 may include a known type of input device. For example, the inputter 410 may include at least one of a button, a switch, or a control panel.

The display 420 may receive a signal from the controller 300 and display information corresponding to the received signal. The display 420 may display various information, an operation state, etc. of the dishwasher 1. For example, the display 420 may be provided as a known type of display panel.

For example, the inputter 410 and the display 420 may be implemented as a user interface. For example, the inputter 410 and the display 420 may be integrated into a touch panel.

The turbidity sensor 500 may detect a contamination level of washing water. The turbidity sensor 500 may provide an electrical output signal about a contamination level of washing water to the controller 300. The controller 300 may control a washing operation and/or a rinsing operation based on a signal provided from the turbidity sensor 500. For example, the controller 300 may control a number of times by which a washing operation is performed, a time for which a washing operation is performed, etc. For example, the controller 300 may control a number of times by which a rinsing operation is performed, a time for which a rinsing operation is performed, etc.

The temperature sensor 600 may detect inside temperature of the tub 12. The temperature sensor 600 may provide an electrical output signal about inside temperature of the tub 12 to the controller 300. The controller 30 may identify whether to finish a drying operation, based on a signal provided from the temperature sensor 600. For example, the controller 300 may identify whether to finish a drying operation, by comparing temperature detected by the temperature sensor 600 during the drying operation with outside temperature of the tub 12. For example, according to identification that temperature detected by the temperature sensor 600 during a drying operation reaches outside temperature of the tub 12, the controller 300 may control the first blower 100 and/or the second blower 200 to finish the drying operation. For example, the dishwasher 1 may further include a temperature sensor (not shown) for detecting outside temperature of the tub 12.

The humidity sensor 700 may detect inside humidity of the tub 12. The humidity sensor 700 may provide an electrical output signal about inside humidity of the tub 12 to the controller 300. The controller 30 may identify whether to finish a drying operation, based on a signal provided from the humidity sensor 700. For example, the controller 300 may identify whether to finish a drying operation, by comparing humidity detected by the humidity sensor 700 during the drying operation with preset target humidity. For example, according to identification that humidity detected by the humidity sensor 700 during a drying operation reaches the preset target humidity, the controller 300 may control the first blower 100 and/or the second blower 200 to finish the drying operation. For example, the preset target humidity may be set by the inputter 410.

The communicator 800 may communicate with an external terminal (not shown). For example, the communicator 800 may be provided as a known type of wireless communication module. For example, the external terminal may include at least one of a smart phone, a personal computer (PC), or a tablet.

The first blower 100 may include the first blow fan 110. The first blower 100 may include the first driver 180 for rotating the first blow fan 110.

The controller 300 may control the first blower 100. The controller 300 may control a driving voltage that is to be supplied to the first blower 100. The controller 300 may adjust a blowing force of the first blower 100. The controller 300 may control the first driver 180. The controller 300 may adjust rotation velocity of the first blow fan 110.

For example, the controller 300 may control the first blower 100 to be turned on and off periodically. For example, the controller 300 may control the first blower 100 to change a blowing force periodically. For example, the controller 300 may control the first blower 100 to change rotation velocity of the first blow fan 110 periodically.

The second blower 200 may include the second blow fan 210. The second blower 200 may include the second driver 280 for rotating the second blow fan 210.

The controller 300 may control the second blower 200. The controller 300 may control a driving voltage that is to be supplied to the second blower 200. The controller 300 may adjust a blowing force of the second blower 200. The controller 300 may control the second driver 280. The controller 300 may adjust rotation velocity of the second blow fan 210.

For example, the controller 300 may control the second blower 200 to be turned on and off periodically. For example, the controller 300 may control the second blower 200 to change a blowing force periodically. For example, the controller 300 may control the second blower 200 to change rotation velocity of the second blow fan 210 periodically.

FIG. 36 shows an example of an operation of blowers according to an embodiment of the disclosure. FIG. 37 shows an example of an operation of blowers according to an embodiment of the disclosure. FIG. 38 shows an example of an operation of blowers according to an embodiment of the disclosure. FIG. 39 shows an example of an operation of blowers according to an embodiment of the disclosure. Overlapping descriptions will be omitted.

Referring to FIGS. 36 to 39, according to completion of a rinsing operation, a drying operation may start. The drying operation may be performed through a process of condensation drying, natural convection drying, and forced convection drying.

After a drying operation starts, condensation drying may be performed for a preset time t1. The condensation drying may be performed while water drops inside the tub 12 are condensed in a state in which the door 11 closes the opening 12a. According to elapse of the preset time t1 after the drying operation starts, the door 11 may open. The door 11 may open the opening 12a of the tub 12.

After the door 11 opens the opening 12a, natural convection drying may be performed for a preset time t2. The natural convection drying may be performed while outside air of the tub 12 enters the inside of the tub 12 in a state in which the door 11 opens the opening 12. According to elapse of the preset time t2 after the door 11 opens the opening 12a, the blower 80 may operate. According to elapse of the preset time t2 after the door 11 opens the opening 12a, the first blower 100 and/or the second blower 200 may operate. According to elapse of the preset time t2 after the door 11 opens the opening 12a, the first blower 100 may start operating. According to elapse of the preset time t2 after the door 11 opens the opening 12a, the second blower 200 may start operating.

After the blower 80 starts operating, forced convection drying may be performed for a preset time t3. By a blowing force generated by the blower 80 while the door 11 opens the opening 12a, forced convection may occur inside the tub 12. For example, the first blower 100 may discharge inside vapor of the tub 12 to the outside of the tub 12. For example, the second blower 200 may form a circulating airflow inside the tub 12.

Referring to FIG. 36, according to elapse of the preset time t2 after the door 11 opens, a driving voltage may be supplied to the first blower 100. After the first blower 100 starts operating, a constant driving voltage may be supplied to the first blower 100 for the preset time t3. The first blower 100 may be maintained in a turned-on state for the preset time t3. For example, the first blow fan 110 may rotate at constant velocity. For example, the controller 300 may control a driving voltage of the first blower 100.

Referring to FIG. 36, according to elapse of the preset time t2 after the door 11 opens, a driving voltage may be supplied to the second blower 200. After the second blower 200 starts operating, a constant driving voltage may be supplied to the second blower 200 for the preset time t3. The second blower 200 may be maintained in a turned-on state for the preset time t3. For example, the second blow fan 210 may rotate at constant velocity. For example, the controller 300 may control a driving voltage of the second blower 200.

Referring to FIG. 37, according to elapse of the preset time t2 after the door 11 opens, a driving voltage may be supplied to the first blower 100. After the first blower 100 starts operating, a variable driving voltage may be supplied to the first blower 100 for the preset time t3. For example, a first driving voltage V1 and a second driving voltage V2 may be alternately supplied to the first blower 100. Thereby, a driving force of the first blower 100 may change periodically. Rotation velocity of the first blow fan 110 may change periodically.

Referring to FIG. 37, according to elapse of the preset time t2 after the door 11 opens, a driving voltage may be supplied to the second blower 200. After the second blower 200 starts operating, a variable driving voltage may be supplied to the second blower 200 for the preset time t3. For example, the first driving voltage V1 and the second driving voltage V2 may be alternately supplied to the second blower 200. Thereby, a blowing force of the second blower 200 may change periodically. Rotation velocity of the second blow fan 210 may change periodically.

Referring to FIG. 38, according to elapse of the preset time t2 after the door 11 opens, a driving voltage may be supplied to the first blower 100. According to elapse of the preset time t2 after the door 11 opens, a driving voltage may be supplied to the second blower 200. For example, after the first blower 100 starts operating, the first driving voltage V1 and the second driving voltage V2 may be alternately supplied to the first blower 100 for the preset time t3. After the second blower 200 starts operating, the first driving voltage V1 and the second driving voltage V2 may be alternately supplied to the second blower 200 for the preset time t3. At a certain time, while the first driving voltage V1 is supplied to the first blower 100, the second driving voltage V2 may be supplied to the second blower 200. At a certain time, while the second driving voltage V2 is supplied to the first blower 100, the first driving voltage V1 may be supplied to the second blower 200.

Unlike FIG. 38, after the first blower 100 starts operating, the second driving voltage V2 and the first driving voltage V1 may be alternately supplied to the first blower 100 for the preset time t3. After the second blower 200 starts operating, the first driving voltage V1 and the second driving voltage V2 may be alternately supplied to the second blower 200 for the preset time t3.

Referring to FIG. 39, according to elapse of the preset time t2 after the door 11 opens, each of the first blower 100 and the second blower 200 may be turned on and off periodically for the preset time t3. At a certain time, while the first blower 100 is in an ON state, the second blower 200 may be in an OFF state. At a certain time, while the first blower 100 is in an OFF state, the second blower 200 may be in an ON state.

However, the disclosure is not limited to the examples shown in FIGS. 36 to 39. For example, after the first blower 100 starts operating, various driving voltages may be supplied irregularly to the first blower 100 for the preset time t3. Thereby, a blowing force of the first blower 100 may change to an irregular pattern. Rotation velocity of the first blow fan 110 may change to an irregular pattern. For example, after the second blower 200 starts operating, various driving voltages may be irregularly supplied to the second blower 200 for the preset time t3. Thereby, a blowing force of the second blower 200 may change to an irregular pattern. Rotation velocity of the second blow fan 210 may change to an irregular pattern.

FIG. 40 is a flowchart showing an example of a method for controlling a dishwasher during a drying operation.

Referring to FIG. 40, according to identification (YES in operation 1200) that a preset time t1 has elapsed after a drying operation starts (operation 1100), the dishwasher 1 may control the door 11 to open (operation 1300). For example, the door 11 may open the opening 12a of the tub 12 to a preset range (see FIG. 2).

According to identification (NO in operation 1200) that the preset time t1 has not elapsed after the drying operation starts (operation 1100), the dishwasher 1 may maintain a closed state of the door 11.

According to identification (YES in operation 1400) that a preset time t2 has elapsed after the door 11 opens (operation 1300), the dishwasher 1 may start operating the blower 80 (operation 1500). That is, the blower 80 may change from an OFF state to an ON state. For example, according to the identification (YES in operation 1400) that the preset time t2 has elapsed after the door 11 opens (operation 1300), the first blower 100 may start operating. For example, according to the identification (YES in operation 1400) that the preset time t2 has elapsed after the door 11 opens (operation 1300), the second blower 200 may start operating.

According to identification (NO in operation 1400) that the preset time t2 has not elapsed after the door 11 opens (operation 1300), the blower 80 may be maintained in an OFF state.

According to identification (YES in operation 1600) that a preset time t3 has elapsed after the blower 80 starts operating (operation 1500), the dishwasher 1 may stop operating the blower 80 (operation 1700). That is, the blower 80 may change from an ON state to an OFF state. For example, according to the identification (YES in operation 1600) that the preset time t3 has elapsed after the blower 80 starts operating (operation 1500), the first blower 100 may stop operating. For example, according to the identification (YES in operation 1600) that the preset time t3 has elapsed after the blower 80 starts operating (operation 1500), the second blower 200 may stop operating.

According to identification (NO in operation 1600) that the preset time t3 has not elapsed after the blower 80 starts operating (operation 1500), the blower 80 may continue to operate. The blower 80 may be maintained in an ON state.

According to identification that the blower 80 stops operating (operation 1700), the dishwasher 1 may terminate the drying operation (operation 1800).

FIG. 41 is a flowchart showing an example of a method for controlling a dishwasher in a case in which inside temperature of a tub reaches target temperature.

Referring to FIG. 41, after the blower 80 starts operating (operation 2100), the dishwasher 1 may compare inside temperature of the tub 12 with outside temperature (operation 2200). For example, the controller 300 may identify whether to operate the blower 80 by comparing inside temperature of the tub 12 with outside temperature. For example, inside temperature of the tub 12 may be measured by the temperature sensor 600.

According to identification that inside temperature of the tub 12 reaches outside temperature after the blower 80 starts operating (operation 2100), the blower 80 may stop operating.

For example, according to identification (YES in operation 2200) that inside temperature of the tub 12 is lower than or equal to outside temperature after the blower 80 starts operating (operation 2100), the blower 80 may stop operating (operation 2300). For example, according to the identification (YES in operation 2200) that inside temperature of the tub 12 is lower than or equal to outside temperature after the blower 80 starts operating (operation 2100), the first blower 100 may stop operating. According to the identification (YES in operation 2200) that inside temperature of the tub 12 is lower than or equal to outside temperature after the blower 80 starts operating (operation 2100), the second blower 200 may stop operating.

For example, according to identification (NO in operation 2200) that inside temperature of the tub 12 is not lower than outside temperature after the blower 80 starts operating (operation 2100), the blower 80 may continue to operate. The blower 80 may be maintained in an ON state.

FIG. 42 is a flowchart showing an example of a method for controlling a dishwasher in a case in which inside humidity of a tub reaches target humidity.

Referring to FIG. 42, after the blower 80 starts operating (operation 3100), the dishwasher 1 may compare inside humidity of the tub 12 with preset target humidity (operation 3200). For example, the controller 300 may identify whether to operate the blower 80 by comparing inside humidity of the tub 12 with the preset target humidity. For example, inside humidity of the tub 12 may be measured by the humidity sensor 700. The target humidity may be set by the inputter 410.

According to identification that inside humidity of the tub 12 reaches the preset target humidity after the blower 80 starts operating (operation 3100), the blower 80 may stop operating.

For example, according to identification (YES in operation 3200) that inside humidity of the tub 12 is lower than or equal to the preset target humidity after the blower 80 starts operating (operation 3100), the blower 80 may stop operating (operation 3300). For example, according to the identification (YES in operation 3200) that inside humidity of the tub 12 is lower than or equal to the preset target humidity after the blower 80 starts operating (operation 3100), the first blower 100 may stop operating. For example, according to the identification (YES in operation 3200) that inside humidity of the tub 12 is lower than or equal to the preset target humidity after the blower 80 starts operating (operation 3100), the second blower 200 may stop operating.

For example, according to identification (NO in operation 3200) that inside humidity of the tub 12 is not lower than the preset target humidity after the blower 80 starts operating (operation 3100), the blower 80 may continue to operate. The blower 80 may be maintained in an ON state.

FIG. 43 is a flowchart showing an example of a dishwasher control method for controlling a blower by comparing inside temperature of a tub with target temperature according to elapse of a preset time after the blower starts operating.

Referring to FIG. 43, according to identification (YES in operation 4200) that a preset time t4 has elapsed after the blower 80 starts operating (operation 4100), the dishwasher 1 may compare inside temperature of the tub 12 with outside temperature (operation 4300). For example, the controller 300 may identify whether to stop operating the blower 80 by comparing inside temperature of the tub 12 with outside temperature. For example, inside temperature of the tub 12 may be measured by the temperature sensor 600.

According to identification that inside temperature of the tub 12 reaches outside temperature after the blower 80 starts operating (operation 4100) and the preset time t4 has elapsed (YES in operation 4200), the dishwasher 1 may stop operating the blower 80 (operation 4400).

For example, according to identification (YES in operation 4300) that inside temperature of the tub 12 is lower than or equal to outside temperature, the blower 80 may stop operating (operation 4400). For example, according to the identification (YES in operation 4300) that inside temperature of the tub 12 is lower than or equal to outside temperature, the first blower 100 may stop operating. For example, according to the identification (YES in operation 4300) that inside temperature of the tub 12 is lower than or equal to outside temperature, the second blower 200 may stop operating.

According to identification that inside temperature of the tub 12 does not reach outside temperature after the blower 80 starts operating (operation 4100) and the preset time t4 has elapsed (YES in operation 4200), the dishwasher 1 may control the blower 80 to raise drying performance.

For example, according to the identification (NO in operation 4300) that inside temperature of the tub 12 is not lower than outside temperature, rotation velocity of the blower 80 may be adjusted (operation 4500). For example, the controller 300 may control the blower 80 to generate a greater blowing force than a previous blowing force. For example, the controller 300 may control the blower 80 to generate higher rotation velocity than previous rotation velocity. For example, according to the identification (NO in operation 4300) that inside temperature of the tub 12 is not lower than outside temperature, the controller 300 may increase rotation velocity of the first blower 100. For example, according to the identification (NO in operation 4300) that inside temperature of the tub 12 is not lower than outside temperature, the controller 300 may increase rotation velocity of the second blower 200.

For example, according to elapse (YES in operation 4600) of a preset time t5 after the rotation velocity of the blower 80 is adjusted (operation 4500), the blower 80 may stop operating (operation 4400).

FIG. 44 is a flowchart showing an example of a dishwasher control method for controlling a blower by comparing inside humidity of a tub with target humidity according to elapse of a preset time after the blower starts operating.

Referring to FIG. 44, according to identification (YES in operation 5200) that the preset time t4 has elapsed after the blower 80 starts operating (operation 5100), the dishwasher 1 may compare inside humidity of the tub 12 with preset target humidity (operation 5300). For example, the controller 300 may identify whether to stop operating the blower 80 by comparing inside humidity of the tub 12 with the preset target humidity. For example, inside humidity of the tub 12 may be measured by the humidity sensor 700.

According to identification that inside humidity of the tub 12 reaches the preset target humidity after the blower 80 starts operating and the preset time t4 has elapsed (YES in operation 5200), the dishwasher 1 may stop operating the blower 80 (operation 5400).

For example, according to identification (YES in operation 5300) that inside humidity of the tub 12 is lower than or equal to the preset target humidity, the blower 80 may stop operating (operation 5400). For example, according to the identification (YES in operation 5300) that inside humidity of the tub 12 is lower than or equal to the preset target humidity, the first blower 100 may stop operating. For example, according to the identification (YES in operation 5300) that inside humidity of the tub 12 is lower than or equal to the preset target humidity, the second blower 200 may stop operating.

According to identification that inside humidity of the tub 12 does not reach the preset target humidity after the blower 80 starts operating (operation 5100) and the preset time t4 has elapsed (YES in operation 5200), the dishwasher 1 may control the blower 80 to raise drying performance.

For example, according to identification (NO in operation 5300) that inside humidity of the tub 12 is not lower than the preset target humidity, rotation velocity of the blower 80 may be adjusted (operation 5500). For example, the controller 300 may control the blower 80 to generate a greater blowing force than a previous blowing force. For example, the controller 300 may control the blower 80 to generate higher rotation velocity than previous rotation velocity. For example, according to the identification (NO in operation 5300) that inside humidity of the tub 12 is not lower than the preset target humidity, the controller 300 may increase rotation velocity of the first blower 100. For example, according to the identification (NO in operation 5300) that inside humidity of the tub 12 is not lower than the preset target humidity, the controller 300 may increase rotation velocity of the second blower 200.

According to elapse (YES in operation 5600) of the preset time t5 after the rotation velocity of the blower 80 is adjusted (operation 5500), the blower 80 may stop operating (operation 5400).

According to an aspect of the disclosure, the dishwasher may save energy.

According to an aspect of the disclosure, the dishwasher may improve drying efficiency inside the tub.

According to an aspect of the disclosure, the dishwasher may perform effective drying through forced convection.

Embodiments of the disclosure may provide a method for controlling a dishwasher, the dishwasher including a tub including an opening, a door configured to open or close the opening, and a blower positioned in one side of the tub and configured to suck inside air of the tub and discharge the air to inside of the tub, the method including opening the door based on completion of a rinsing operation; and controlling the blower to operate based on elapse of a preset time after the door opens.

The method for controlling the dishwasher may further include changing rotation velocity of the blower by adjusting a driving voltage of the blower.

The blower may be a first blower, and the dishwasher may further include a second blower facing the first blower. The method for controlling the dishwasher may further include controlling the first blower and the second blower to be alternately turned on and off.

The method for controlling the dishwasher may further include stopping operating the blower according to identification that inside temperature of the tub is lower than or equal to outside temperature of the tub after the blower starts operating.

The method for controlling the dishwasher may further include stopping operating the blower according to identification that inside humidity of the tub is lower than or equal to preset humidity after the blower starts operating.

Technical problems to be achieved by the present specification are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the disclosure belongs from the following description.

So far, specific embodiments have been shown and described. However, the disclosure is not limited to these embodiments. It should be interpreted that various modifications may be made by one of ordinary skill in the technical art to which the disclosure belongs, without deviating from the gist of the technical concept of the disclosure, which is defined in the following claims.

Claims

1. A dishwasher comprising: a tub including an opening;a door configured to open and close the opening;a first blower positioned at a first side of the tub; anda second blower positioned at a second side of the tub;wherein the first blower is configured to, while the door is positioned to open the opening, discharge a portion of air inside of the tub through the opening to outside of the tub so as to lower humidity inside of the tub, andthe second blower is configured to, while the door is positioned to open the opening, circulate air inside of the tub that is not discharged by the first blower.

2. The dishwasher of claim 1, wherein the first side of the tub faces the second side of the tub.

3. The dishwasher of claim 1, wherein the first blower includes: a blow fan, anda blow duct forming a flow path to guide air blown by the blow fan toward the opening.

4. The dishwasher of claim 1, wherein the second blower includes: a blow fan, anda blow duct forming a flow path to guide air blown by the blow fan away from the opening.

5. The dishwasher of claim 3, wherein the opening is formed in a front side of the tub,the door is rotatable so that an upper portion of the door is movable away from and toward the tub to open and close the opening, andthe first blower includes: an inlet provided at a first end of the flow path, andan outlet provided at a second end of the flow path and positioned forward of the inlet toward the opening,wherein the air flowing on the flow path is sucked into the inlet from inside of the tub, and discharged through the outlet, by the blow fan.

6. The dishwasher of claim 5, wherein the flow path is a first flow path,the outlet is a first outlet, andthe first blower includes: a second flow path partitioned from the first flow path, anda second outlet positioned below the first outlet and configured to circulate air flowing on the second flow path to inside of the tub.

7. The dishwasher of claim 3, wherein the opening is formed in a front side of the tub,the door is rotatable so that an upper portion of the door is movable away from and toward the tub to open and close the opening, andthe second blower includes: an inlet provided at a first end of the flow path, andan outlet provided at a second end of the flow path and positioned below the inlet,wherein the air flowing on the flow path is sucked into the inlet from an inside of the tub, and discharged through the outlet to inside of the tub, by the blow fan.

8. The dishwasher of claim 7, wherein the flow path is a first flow path,the outlet is a first outlet, andthe second blower includes: a second flow path partitioned from the first flow path; anda second outlet positioned below the inlet and arranged in a front-rear direction with respect to the first outlet, wherein air flowing on the second flow path is discharged through the second outlet to inside of the tub.

9. The dishwasher of claim 1, wherein each of the first blower and the second blower includes: a blow fan, andan inlet cap facing the blow fan and detachably installed on an inner wall of the tub, andthe inlet cap includes: a body portion covering the blow fan and configured to prevent at least one of foreign materials or washing water in the tub from entering the blow fan, andan inlet formed between the inner wall of the tub and the body portion, wherein air inside of the tub is sucked through the inlet.

10. The dishwasher of claim 9, wherein the inlet cap includes: at least one inlet guide rib formed on the body portion and extending toward the blow fan, the at least one inlet guide rib having a downwardly inclined, curved shape.

11. The dishwasher of claim 1, wherein the opening is formed in a front side of the tub,the door is rotatable so that an upper portion of the door is movable away from and toward the tub to open and close the opening,the first blower includes: a first blow fan,a first blow duct detachably installed on an outer wall of the first side of the tub and configured to guide air blown by the first blow fan, anda first outlet cap detachably installed on an inner wall of the first side of the tub at an end of the first blow duct so as to communicate the first blow duct with inside of the tub,the second blower includes: a second blow fan,a second blow duct detachably installed on an outer wall of the second side of the tub and configured to guide air blown by the second blow fan, anda second outlet cap detachably installed on an inner wall of the second side of the tub at an end of the second blow duct so as to communicate the second blow duct with inside of the tub,the first outlet cap includes a first outlet guide rib inclined toward a front, upper direction and configured to induce air guided by the first blow duct to move toward the opening, andthe second outlet cap includes a second outlet guide rib inclined downward and configured to induce air guided by the second blow duct to move away from the opening.

12. The dishwasher of claim 1, further comprising: a controller configured to control the first blower and the second blower.

13. The dishwasher of claim 12, wherein the controller is configured to control the first blower and the second blower to operate according to an elapse of a preset time after the door opens the opening.

14. The dishwasher of claim 13, wherein the controller is configured to control each of the first blower and the second blower to change a blowing force periodically.

15. The dishwasher of claim 13, wherein the controller is configured to control each of the first blower and the second blower to be repeatedly turned on and off periodically.