DISHWASHER

TECHNICAL FIELD

The disclosure relates to a dishwasher having an improved structure.

BACKGROUND ART

A dishwasher is a device for automatically washing food residue and the like from dishware using detergent and water.

The dishwasher may include a tub forming a washing space, a sump for collecting water, a pump for pumping water in the sump, and a spray device for spraying water into the tub. The spray device may include a plurality of spray units.

The dishwasher may include a duct to provide each of the plurality of spray units with water. In general, ducts may have an elongated shape to guide the water.

DISCLOSURE
Technical Problem

One aspect of the present invention provides a dishwasher including a duct having an improved structure.

One aspect of the present invention provides a dishwasher including a duct that is easy to manufacture.

One aspect of the present invention provides a dishwasher having a duct with an improved assembly.

Technical Solution

According to an embodiment, there is provided a dishwasher including: a tub forming a washing chamber; a spray unit configured to spray water into the washing chamber; a sump configured to accommodate the water to be supplied to the spray unit; and a duct including a first body portion extending along a first direction and connectable to the spray unit, and a second body portion extending from the first body portion along a second direction and into which the water from the sump is introduced. The duct may include: a first frame including a plurality of first coupling members arranged along the first direction and the second direction; a second frame including a plurality of second coupling members coupleable to the plurality of first coupling members; a guide flow path formed by the first frame and the second frame being coupled to each other; and a partition configured to partition the guide flow path into a plurality of sections.

The first frame may further include a first edge extending toward the second frame and configured to form the plurality of first coupling members. The second frame may further include a second edge extending toward the first frame and configured to form the plurality of second coupling members. The first edge may be arranged opposite to the second edge such that the plurality of first coupling members may be configured to be coupled to the plurality of second coupling members.

The partition may include: a first partition protrusion formed on the first frame and protruding toward the second frame, and a second partition protrusion formed on the second frame and protruding toward the first frame and configured to contact the first partition protrusion in a third direction.

The partition may include: a fixing hole formed on the first frame; and a fixing protrusion formed on the second frame and configured to be inserted into the fixing hole.

A portion of the fixing protrusion protruding through the fixing hole may be configured to be caught onto the fixing hole by hot staking.

The fixing protrusion may further include a fixing hook configured to be caught onto the fixing hole.

The first frame may include a front frame connected to the sump, and a rear frame separably coupled to a rear side of the front frame.

The front frame may include a first connecting portion formed at an end facing the rear frame. The rear frame may include a second connecting portion formed at an end facing the front frame to be separably coupled to the first connecting portion in the second direction, the second connecting portion forming an accommodation space configured to accommodate the first connecting portion.

The second frame may be configured to be inserted into the accommodation space of the rear frame while the front frame and the rear frame are coupled to each other, to restrict movement of the first connecting portion.

The first connecting portion and the second connecting portion may be arranged in the second body portion.

The plurality of first coupling members may be configured to be hook-coupled to the plurality of second coupling members.

The first frame may further include a first coupling protrusion formed along the first edge and protruding toward the second frame.

The second frame may further include a second coupling protrusion formed along the second edge and protruding toward the first frame, the second coupling protrusion being configured to contact the first coupling protrusion in a third direction.

The guide flow path may be arranged in a third direction intersecting the first direction and the second direction.

The first body portion formed by the second frame may be separably coupled to a front side of the first body portion formed by the first frame.

The second body portion formed by the second frame may be separably coupled to an upper side of the second body portion formed by the first frame.

One aspect of the present invention provides a dishwasher including: a main body, a tub arrangeable inside the main body; a sump configured to accommodate water; and a duct extending along one sidewall of the tub and a lower surface of the tub to guide the water from the sump to the tub. The duct may include a first injection frame, a second injection frame that is hook-coupled to the first injection frame, and a plurality of guide flow paths formed by coupling a first partition formed on the first injection frame and a second partition formed on the second injection frame.

The dishwasher may further include a spray unit connected to the duct and configured to spray water into the tub. The spray unit may include a first spray rotor arranged in an upper portion of the tub, and a second spray rotor spaced downward from the first spray rotor. The plurality of guide flow paths of the duct may include a first guide flow path configured to guide water to the first spray rotor, and a second guide flow path divided from the first guide flow path and configured to guide water to the second spray rotor.

The duct may further include a partition configured to divide the first guide flow path from the second guide flow path. The partition may include a fixing hole formed in the first injection frame and a fixing protrusion formed on the second injection frame and configured to be inserted into and fixed to the fixing hole.

The sump may further include a sump housing configured to store water in the tub, and a sump cover configured to cover the sump housing and distribute the water in the sump housing to the spray unit. The duct may be configured to connect the sump cover and the spray unit.

The first injection frame may form at least a part of rear and lower portions of the duct. The second injection frame may form at least a part of front and upper portions of the duct.

Advantageous Effect

According to one aspect of the disclosure, the dishwasher can include a duct having an improved structure.

According to one aspect of the disclosure, the dishwasher can include a duct that is easy to manufacture.

According to one aspect of the disclosure, the dishwasher can include a duct with an improved assembly.

DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic perspective view of a dishwasher according to one embodiment.

FIG. 2 is a schematic side cross-sectional view of a dishwasher according to one embodiment.

FIG. 3 is a schematic perspective view illustrating a configuration of a part of a dishwasher according to one embodiment.

FIG. 4 is a schematic exploded view illustrating a configuration of a part of a dishwasher according to one embodiment.

FIG. 5 is a schematic perspective view of a duct according to one embodiment.

FIG. 6 is a schematic bottom perspective view of a duct according to one embodiment.

FIG. 7 is a schematic bottom view of a duct according to one embodiment.

FIG. 8 is a schematic side view illustrating a lower portion of a duct according to one embodiment.

FIG. 9 is an exploded view of a duct according to one embodiment.

FIG. 10 is a perspective view of an example of a duct, which is taken along a cut line, according to one embodiment.

FIG. 11 is a cross-sectional view of the duct shown in FIG. 10 according to one embodiment.

FIG. 12 is a cross-sectional view illustrating an example of a partition of a duct according to one embodiment.

FIG. 13 is a cross-sectional view illustrating an example of a partition of a duct according to one embodiment.

FIG. 14 is a perspective view of an example of a duct, which is taken along a cut line, according to one embodiment.

FIG. 15 is a cross-sectional view of the duct shown in FIG. 14 according to one embodiment.

FIG. 16 is an exploded view of an example of a first frame of a duct according to one embodiment.

FIG. 17 is a view illustrating a state before a front frame and a rear frame of the first frame are coupled to each other according to one embodiment.

FIG. 18 is a view illustrating a state in which the front frame and the rear frame shown in FIG. 17 are coupled to each other, according to one embodiment.

FIG. 19 is a view illustrating a state in which the front frame and the rear frame shown in FIG. 18 are coupled to each other, when viewed from below, according to one embodiment.

FIG. 20 is a view illustrating a state in which the front frame and the rear frame shown in FIG. 18 are coupled to each other, taken along a cut line, according to one embodiment.

FIG. 21 is a view illustrating a state before a second frame is coupled to the first frame shown in FIG. 18, according to one embodiment.

FIG. 22 is a view illustrating a state in which the second frame is coupled to the first frame shown in FIG. 21, according to one embodiment.

FIG. 23 is a view illustrating a connecting region of the first frame and the second frame shown in FIG. 22, taken along a cut line, according to one embodiment.

FIG. 24 is a side cross-sectional view illustrating a part of a dishwasher according to one embodiment.

FIG. 25 is a view illustrating a state before a first frame and a second frame of a duct are coupled to each other according to one embodiment.

FIG. 26 is a view illustrating a process in which the first frame and the second frame of the duct shown in FIG. 25 are coupled to each other, according to one embodiment.

FIG. 27 is a view illustrating a state in which the first frame and the second frame of the duct shown in FIG. 26 are coupled to each other, according to one embodiment.

MODES OF THE DISCLOSURE

Embodiments described in the disclosure and configurations illustrated in the drawings are merely examples of the embodiments of the disclosure, and may be modified in various different ways at the time of filing of the present application to replace the embodiments and drawings of the disclosure.

In addition, the same reference numerals or signs illustrated in the drawings of the disclosure indicate elements or components performing substantially the same function.

Also, the terms used herein are used to describe the embodiments and are not intended to limit and/or restrict the disclosure. The singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. In this disclosure, the terms “including”, “having”, and the like are used to specify features, numbers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more of the features, elements, steps, operations, elements, components, or combinations thereof.

It will be understood that when an element is referred to as being “connected” another element, it can be directly or indirectly connected to the other element. Similarly, it will be understood that when an element is referred to as being “coupled” another element, it can be directly or indirectly coupled to the other element.

Throughout the description, when a member is located “on” another member, this includes not only when the member is in contact with the other member, but also when there is another member between the two members.

It will be understood that, although the terms “first”, “second”, etc., may be used herein to describe various elements, but elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the disclosure, a first element may be termed as a second element, and a second element may be termed as a first element. The term of “and/or” includes a plurality of combinations of relevant items or any one item among a plurality of relevant items.

Meanwhile, the terms “up and down direction”, “height direction”, “vertical direction”, “horizontal direction”, “upper direction”, “lower direction”, and “front and rear direction” used in the following description are defined based on the drawings, but the shape and position of each component are not limited by this term.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a schematic perspective view of a dishwasher according to one embodiment. FIG. 2 is a schematic side cross-sectional view of a dishwasher according to one embodiment.

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

The dishwasher 1 may include a tub 12 arranged inside the main body 10. The tub 12 may be formed in a substantially box shape. One side of the tub 12 may be openable. That is, the tub 12 may include an opening 12a. As an example, a front side of the tub 12 may be openable.

The dishwasher 1 may include a door 11 configured to open and close the opening 12a of the tub 12. The door 11 may be installed in the main body 10 to open and close the opening 12a of the tub 12. The door 11 may be rotatably installed in the main body 10. The door 11 may be separably mounted to the main body 10.

The dishwasher 1 may further include a storage container arranged in the tub 12 to accommodate dishes.

The storage container may include a plurality of baskets 51, 52 and 53. The plurality of baskets 51, 52, and 53 may be provided to store various tableware. However, it is not limited thereto, and the storage container may include a single basket.

The storage container may include an intermediate basket 52 positioned in the middle with respect to the height direction of the dishwasher 1. The storage container may include a lower basket 51 positioned in a lower portion with respect to the height direction of the dishwasher 1. The intermediate basket 52 may be provided to be supported by an intermediate guide rack 13b. The lower basket 51 may be provided to be supported by a lower guide rack 13a. The intermediate guide rack 13b may be installed on a side surface 12c of the tub 12 so as to be slidable toward the opening 12a of the tub 12. The lower guide rack 13a may be installed on the side surface 12c of the tub 12 so as to be slidable toward the opening 12a of the tub 12.

Relatively large dishes may be stored in the plurality of baskets 51 and 52. However, the type of dishes stored in the plurality of baskets 51 and 52 is not limited to relatively large dishes. That is, the plurality of baskets 51 and 52 may store not only relatively large dishes but also relatively small dishes.

The storage container may include an upper basket 53 positioned in an upper portion with respect to the height direction of the dishwasher 1. The upper basket 53 may be formed in a rack assembly to store relatively small dishes. For example, the upper basket 53 may store a cooking utensil such as a ladle, a knife, or a turner, or cutlery. In addition, the upper basket 53 may store a small cup such as an espresso cup. However, the type of dishes stored in the upper basket 53 is not limited thereto.

The upper basket 53 may be provided to be supported by an upper guide rack 13c. The upper guide rack 13c may be installed on the side surface 12c of the tub 12. For example, the upper basket 53 may be slidably moved by the upper guide rack 13c, and inserted into or withdrawn from a washing chamber C.

The dishwasher 1 may include the washing chamber C that is a space formed inside the tub 12. The washing chamber C may be defined as an inner space of the tub 12. The washing chamber C may refer to a space in which dishes arranged in the storage container are washed by water and dried.

The dishwasher 1 may include a spray device 40 configured to spray water. The spray device 40 may spray water into the washing chamber C. The spray device 40 may spray water toward the dishes stored in the storage container. The spray device 40 may receive water from a sump assembly 70 to be described below.

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

For example, the spray device 40 may include a first spray unit 41 arranged under the lower basket 51 in the height direction of the dishwasher 1. The spray device 40 may include a second spray unit 42 arranged under the intermediate basket 52 in the height direction of the dishwasher 1. The spray device 40 may include a third spray unit 43 arranged above the upper basket 53 in the height direction of the dishwasher 1. However, it is not limited thereto, and the spray unit may be provided as two spray units, or four or more spray units.

Each of the plurality of spray units 41, 42, and 43 may be provided to spray water while rotating. Each of the first spray unit 41, the second spray unit 42, and the third spray unit 43 may be provided to spray water while rotating. The plurality of spray units 41, 42 and 43 may be referred to as a plurality of spray rotors 41, 42, and 43. The first spray unit 41, the second spray unit 42, and the third spray unit 43 may 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 water in a manner different from the above-described example. For example, unlike the second spray unit 42 and the third spray unit 43, the first spray unit 41 may be fixed to one side of a lower surface 12b of the tub 12. In this case, the first spray unit 41 may be provided to spray water in a substantially horizontal direction by a fixed nozzle, and the water, which is sprayed in a substantially horizontal direction from the nozzle of the first spray unit 41, may be deflected by a conversion assembly (not shown) arranged inside the washing chamber C, and then move upward. The conversion assembly may be installed on a rail (not shown) and may be provided to translate along the rail. Meanwhile, although the first spray unit 41 is described as an example, the second spray unit 42 and the third spray unit 43 may also be provided to spray water using fixed nozzles, similar to the above-described example.

The dishwasher 1 may include an auxiliary spray device 30. The auxiliary spray device 30 may be arranged at one side of a lower portion of the washing chamber C to spray water to a partial region of the washing chamber C. The auxiliary spray device 30 may be designed to spray relatively high-pressure water compared to the spray device 40 to intensively wash heavily soiled dishes. The auxiliary spray device 30 may be referred to as an auxiliary spray unit 30. The auxiliary spray device 30 may be provided to spray water while rotating. The auxiliary spray device 30 may be referred to as an auxiliary spray rotor 40.

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

Meanwhile, although the auxiliary spray device 30 is illustrated in FIG. 2, the auxiliary spray device 30 may be omitted in the dishwasher 1.

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

The sump assembly 70 may be provided to receive water. The sump assembly 70 may collect water of the washing chamber C. For example, the lower surface 12b of the tub 12 may be inclined downward toward the sump assembly 70 to allow water to be smoothly collected in the sump assembly 70. The water of the washing chamber C may flow along the slope of the lower surface 12b of the tub 12 and smoothly flow into the sump assembly 70.

For example, the sump assembly 70 may include a sump housing 100 and a sump cover 300.

The dishwasher 1 may include a circulation pump 500 configured to pump water stored in the sump assembly 70 to the spray device 40. The circulation pump 500 may be provided as one component of the sump assembly 70. For example, the circulation pump 500 may be separably coupled to the sump housing 100. The circulation pump 500 may be arranged in a machine room L.

The dishwasher 1 may include a drain pump 600 configured to drain water and foreign substances (e.g., food waste) remaining in the sump assembly 70. The drain pump 600 may be provided as one component of the sump assembly 70. For example, the drain pump 600 may be separably coupled to the sump housing 100. The drain pump 600 may be arranged in the machine room L.

The sump assembly 70 may pump the collected water and supply the water to the spray device 40. The sump assembly 70 may pump the collected water and supply the water to the auxiliary spray device 30.

The sump assembly 70 may include a connection port 310 connected to the spray device 40 to supply water to the spray device 40 and/or the auxiliary spray device 30. For example, the connection port 310 may be connected to the spray device 40 through a duct assembly 80 to be described below. For example, the connection port 310 may be connected to the spray device 40 through a duct 200 to be described below. For example, the connection port 310 may be formed in the sump cover 300 (see FIGS. 3 and 4) to be described below.

For example, referring to FIG. 2, the connection port 310 may include a first connection port 311 connected to the first spray unit 41 and a second connection port 312 connected to the second spray unit 42. The connection port 310 may include a third connection port 313 connected to the third spray unit 43.

For example, the second connection port 312 may be connected to the second spray unit 42 through the duct 200 to be described below. The third connection port 313 may be connected to the third spray unit 43 through the duct 200 to be described below. Details thereof will be described below.

For example, the connection port 310 may include a fourth connection port 314 connected to the auxiliary spray device 30. The fourth connection port 314 may be omitted depending on the presence and absence of the auxiliary spray device 30.

The dishwasher 1 may include a machine room L that is a space provided below the tub 12. The machine room L may be a place in which a component for circulating water is arranged. The dishwasher 1 may include a base frame 16 forming the machine room L.

For example, at least a part of the sump assembly 70 may be arranged in the machine room L. Most part of the sump assembly 70 may be arranged in the machine room L. That is, an area of the sump assembly 70 located in the washing chamber C may be less than an area of the sump assembly 70 located in the machine room L. By reducing the area of the sump assembly 70 occupying the washing chamber C, the area of the washing chamber C may be secured. Accordingly, the capacity of the washing chamber C may be increased, which increases the storage capacity of the dishes.

The dishwasher 1 may include a filter assembly 60. The filter assembly 60 may be provided to filter out foreign substances included in the water flowing into the sump assembly 70. The filter assembly 60 may be separably mounted on the sump housing 100. The filter assembly 60 may be arranged to correspond to a water storage chamber 111, in FIG. 3. For example, the filter assembly 60 may include at least one of a fine filter, a coarse filter, or a micro filter.

FIG. 3 is a schematic perspective view illustrating a configuration of a part of a dishwasher according to one embodiment. FIG. 4 is a schematic exploded view illustrating a configuration of a part of a dishwasher according to one embodiment.

In FIGS. 3 and 4, an example in which the auxiliary spray device 30 is omitted is illustrated. In such cases, the fourth connection port 314 may also be omitted. However, the disclosure is not limited to that illustrated in the drawings, and the dishwasher 1 may further include the auxiliary spray device 30. In this case, the dishwasher 1 may further include the fourth connection port 314 connected to the auxiliary spray device 30.

Referring to FIG. 3, the tub 12 may be provided to form a washing chamber C. For example, the tub 12 may include a lower surface 12b, a side surface 12c, a rear surface 12f, and an upper surface 12g to form the washing chamber C. For example, the side surface 12c may include at least one of a left side surface 12d or a right side surface 12e. For example, one sidewall of the tub 12 may include any one of the left side surface 12d, the right side surface 12e, or the rear surface 12f. For example, one surface of the tub 12 may include any one of the lower surface 12b, the left side surface 12d, the right side surface 12e, the rear surface 12f, or the upper surface 12g.

The sump housing 100 may be provided to receive water.

The sump housing 100 may include the water storage chamber 111 provided to store water. The water storage chamber 111 may have an open top shape. The water storage chamber 111 may be provided to receive water introduced from a water supply pipe (not shown) or to receive water introduced from the tub 12.

The sump housing 100 may include a distribution chamber 121 in which water supplied to the spray device 40 is accommodated. The distribution chamber 121 may be divided from the water storage chamber 111. The distribution chamber 121 may be supplied with the water stored in the water storage chamber 111. For example, the distribution chamber 121 may be supplied with water pumped by the circulation pump 500.

For example, the sump housing 100 may include a first sump body 110 provided to form the water storage chamber 111. The sump housing 100 may include a second sump body 120 provided to form the distribution chamber 121.

For example, the sump housing 100 may include a third sump body 130. The third sump body 130 may refer to an exterior of the sump housing 100, except the first sump body 110 and the second sump body 120.

For example, the third sump body 130 may include a base portion 131 connecting the first sump body 110 and the second sump body 120. The third sump body 130 may include an edge portion 132 that protrudes upward from an outer periphery of the base portion 131.

Water received in the distribution chamber 121 may be distributed to the spray device 40 through a distribution device (not shown). The distribution device may be provided to supply water to at least one of the plurality of spray units 41, 42, and 43. The distribution device may be provided to selectively supply water to the plurality of spray units 41, 42, and 43. The distribution device may be provided to open and close at least one of the plurality of connection ports 311, 312, and 313. Accordingly, the duct assembly 80 may be provided to selectively deliver water to the plurality of spray units 41, 42, and 43 depending on whether the plurality of connection ports 311, 312, and 313 are opened or closed. The duct 200 may be provided to selectively deliver water to the plurality of spray units 41, 42, and 43 depending on whether the plurality of connection ports 311, 312, and 313 are opened or closed.

For example, when the distribution device opens the second connection port 312, the duct assembly 80 may be supplied with water from the distribution chamber 121 and deliver the water to the second spray unit 42. For example, when the distribution device opens the third connection port 313, the duct assembly 80 may be supplied with water from the distribution chamber 121 and deliver the water to the third spray unit 43.

Meanwhile, the distribution device 200 may be separably mounted to the sump housing 100. The distribution device 200 may be provided as one component of the sump assembly 70. However, it is not limited thereto, and the distribution device 200 may be provided as a separate component from the sump assembly 70.

For example, the distribution device may include a distribution motor (not shown) that generates rotational force. The distribution device may include a distribution disk (not shown) provided to rotate by the rotational force of the distribution motor. The distribution disk may be provided to be in communication with the plurality of connection ports 311, 312, and 313. Depending on communication between the distribution disk and each of the plurality of connection ports 311, 312, and 313, whether each of the plurality of connection ports 311, 312, and 313 is opened or closed may be determined. The distribution device may include a shaft (not shown) for transmitting the rotational force of the distribution motor to the distribution disk. The distribution device may include a switch (not shown) provided to detect the rotation of the shaft. However, the distribution device is not limited to the above-described examples. The distribution device may be provided in various configurations and shapes as long as it can selectively provide water to the plurality of spray units 41, 42, and 43.

The sump cover 300 may be provided to cover the sump housing 100. The sump cover 300 may be provided to correspond to the distribution chamber 121. The sump cover 300 may be provided to cover the distribution chamber 121.

The sump cover 300 may include the connection port 310. For example, the connection port 310 may be provided to distribute the water to the plurality of spray units 41, 42, and 43. For example, the connection port 310 may be provided to selectively supply the water to the plurality of spray units 41, 42, and 43 by the distribution device (not shown).

The connection port 310 of the sump cover 300 may be connected to the duct assembly 80. The sump cover 300 may be connected to the duct 200.

The sump cover 300 may include a coupling portion 330. For example, the coupling portion 330 of the sump cover 300 may be separably connected to a coupling portion 270 of the duct 200 to be described below. For example, the coupling portion 330 of the sump cover 300 and the coupling portion 270 of the duct 200 may be separably coupled to each other by a fastening member 19. The coupling portion 330 and the coupling portion 270 may be screw-coupled to each other. However, the disclosure is not limited thereto, and it should be understood that various known coupling methods may be applied.

The sump cover 300 may include a holder 320. The holder 320 of the sump cover 300 may prevent separation of the duct assembly 80. The holder 320 of the sump cover 300 may prevent separation of the duct 200. For example, while the duct 200 and the sump cover 300 are connected to each other, the holder 320 may be provided to support the duct 200. For example, while the duct 200 and the sump cover 300 are connected to each other, the holder 320 may be provided to hold a part of the edge of the duct 200.

The holder 320 may be provided to protrude from the upper surface of the sump cover 300. For example, the holder 320 may be provided in plural. In the drawing, two holders 320 are illustrated, but the number of holders is not limited thereto, and one or three or more holders 320 may be provided.

Referring to FIGS. 3 and 4, the dishwasher 1 may include the duct assembly 80. The duct assembly 80 may be arranged within the tub 12. The duct assembly 80 may be arranged in the washing chamber C.

The duct assembly 80 may deliver the water of the sump assembly 70 to the spray device 40. The duct assembly 80 may be supplied with the water from the sump assembly 70. The duct assembly 80 may supply the water to the spray device 40. The duct assembly 80 may provide the water received in the sump assembly 70 to the spray device 40. The duct assembly 80 may supply the water received in the distribution chamber 121 to at least one of the plurality of spray units 41, 42, and 43. The duct assembly 80 may guide the water received in the distribution chamber 121 to at least one of the plurality of spray units 41, 42, and 43.

The duct assembly 80 may include a duct 200. The duct 200 may be referred to as a main duct 200. The duct 200 may be referred to as a first duct 200.

The duct 200 may be provided to deliver the water introduced from the sump assembly 70 to the spray device 40. The duct 200 may be provided to deliver the water introduced from the sump assembly 70 to a connecting duct 400 which will be described below. The duct 200 may be provided to guide the water introduced from the sump assembly 70 to the spray device 40. The duct 200 may be provided to guide the water introduced from the sump assembly 70 to the connecting duct 400. The duct 200 may be provided to connect the sump cover 300 and the spray device 40. The duct 200 may be provided to connect the sump cover 300 and the connecting duct 400.

The duct 200 may be connected to the sump cover 300.

The duct 200 may include an inlet 230 that allows introduction of water. The inlet 230 may be connected to the connection port 310 of the sump cover 300. The inlet 230 may be separably coupled to the connection port 310 of the sump cover 300. The inlet 230 may communicate with the connection port 310 of the sump cover 300. Water in the distribution chamber 121 may flow through the connection port 310 and into the inlet 230 of the duct 200.

For example, the inlet 230 may include a first inlet 231 connectable to the second connection port 312. The first inlet 231 may be provided to be in communication with the second connection port 312. Water in the distribution chamber 121 may flow through the second connection port 312 and into the first inlet 231.

For example, the inlet 230 may include a second inlet 232 connectable to the third connection port 313. The second inlet 232 may be provided to be in communication with the third connection port 313. Water in the distribution chamber 121 may flow through the third connection port 313 and into the second inlet 232.

In the drawing, the first connection port 311 is illustrated as being directly connected to the first spray unit 41. In addition, the second connection port 312 is illustrated as being connected to the first inlet 231, and the third connection port 313 is illustrated as being connected to the second inlet 232. However, the disclosure is not limited to those illustrated in the drawing, and as an example, the inlet 230 of the duct 230 may include a third inlet (not illustrated) connectable to the first connection port 311. In this example, the duct 200 may be provided to receive water from the first connection port 311 and supply the water to the first spray unit 41.

The inlet 230 may be referred to as an inlet port 230. The first inlet 231 may be referred to as a first inlet port 231. The second inlet 232 may be referred to as a second inlet port 232.

For example, the inlet 230 may be formed in a first frame 700 described below.

The duct 200 may be connected to the connecting duct 400.

The duct 200 may include an outlet 240 through which water is discharged. The outlet 240 may be connected to the connecting duct 400. The outlet 240 may be separably coupled to the connecting duct 400. The outlet 240 may communicate with the connecting duct 400. Water in the duct 200 may flow into the connecting duct 400 through the outlet 240. Water introduced into the connecting duct 400 may flow to the spray device 40. However, the disclosure is not limited thereto, and the outlet 240 may be directly connected to the spray device 40.

For example, the outlet 240 may include a first outlet 241 connectable to a first connecting duct 410 to be described below. The outlet 240 may include a second outlet 242 connectable to a second connecting duct 420 to be described below. The first outlet 241 may be directly connected to the first spray unit 41 without the first connecting duct 410. The second outlet 242 may be directly connected to the second spray unit 42 without the second connecting duct 420.

The outlet 240 may be referred to as an outlet port 240. The first outlet 241 may be referred to as a first outlet port 241. The second outlet 242 may be referred to as a second outlet port 242.

For example, the first outlet 241 may be formed in a second frame 800 which will be described below. For example, the second outlet 242 may be formed in the first frame 700 described below.

Meanwhile, water introduced through the first inlet 231 may flow to the second spray unit 42 through the first outlet 241. Water introduced through the second inlet 232 may flow to the third spray unit 43 through the second outlet 242.

The duct assembly 80 may include the connecting duct 400. The connecting duct 400 may be referred to as a sub duct 400. The connecting duct 400 may be referred to as a second duct 400.

The connecting duct 400 may be provided to deliver the water introduced from the duct 200 to the spray device 40. The connecting duct 400 may be provided to guide water introduced from the duct 200 to the spray device 40. The connecting duct 400 may be provided to connect the duct 200 and the spray device 40.

For example, the connecting duct 400 may include the first connecting duct 410 connecting the duct 200 to the second spray unit 42. One end 411 of the first connecting duct 410 may be connected to the duct 200. The other end 412 of the first connecting duct 400 may be connected to the second spray unit 42. The one end 411 of the first connecting duct 410 may be connected to the first outlet 241 of the duct 200. The other end 412 of the first connecting duct 410 may be connected to the first spray unit 42.

For example, the connecting duct 400 may include the second connecting duct 420 connecting the duct 200 to the third spray unit 43. One end 421 of the second connecting duct 420 may be connected to the duct 200. The other end 422 of the second connecting duct 420 may be connected to the third spray unit 43. The one end 421 of the second connecting duct 420 may communicate with the second outlet 242 of the duct 200. The other end 422 of the second connecting duct 420 may communicate with the third spray unit 43.

The connecting duct 400 may be provided as a component of the spray device 40 rather than a component of the duct assembly 80. For example, the connecting duct 400 may be integrally formed with the spray device 40. For example, the first connecting duct 410 may be integrally formed with the second spray unit 42. For example, the second connecting duct 420 may be integrally formed with the third spray unit 43.

The connecting duct 400 may be omitted in the duct assembly 80. For example, the duct 200 may be directly connected to the spray device 40 without the connecting duct 400. For example, the outlet 240 of the duct 200 may be directly connected to the spray device 40.

For example, the first outlet 241 may be directly connected to the second spray unit 42. For example, the second outlet 242 may be directly connected to the third spray unit 43.

FIG. 5 is a schematic perspective view of a duct according to one embodiment. FIG. 6 is a schematic bottom perspective view of a duct according to one embodiment. FIG. 7 is a schematic bottom view of a duct according to one embodiment. FIG. 8 is a schematic side view illustrating a lower portion of a duct according to one embodiment.

A first body portion 210 and a second body portion 220 described below are not limited by the ordinal numbers “first” and “second.” For example, a first body portion may be termed a second body portion, and a second body portion may be termed as a first body portion.

A first frame 700 and a second frame 800 described below are not limited by the ordinal numbers “first” and “second.” For example, a first frame may be termed a second frame, and a second frame may be termed a first frame.

Referring to FIGS. 5 and 6, the duct 200 may include a first body portion 210 extending in a first direction D1. For example, the first body portion 210 may extend to corresponding to one sidewall of the tub 12.

The first body portion 210 may be connected to the spray device 40. The first body portion 210 may be in communication with the spray device 40. For example, the first body portion 210 may be connected to the second spray unit 42. For example, the first body portion 210 may be connected to the third spray unit 43.

For example, water in the first body portion 210 may flow upward and enter the second spray unit 42. Water in the first body portion 210 may flow upward and enter the third spray unit 43.

The first body portion 210 may include an outlet 240 through which the water flowing along the first body portion 210 is discharged. For example, the first body portion 210 may include a first outlet 241 corresponding to the second spray unit 42. For example, the first body portion 210 may include a second outlet 242 corresponding to the third spray unit 43.

For example, the first direction D1 may be provided to correspond approximately to the height direction of the tub 12. The first direction D1 may be provided to correspond approximately to the up-down direction. The first direction D1 may be provided to correspond approximately to the vertical direction.

Referring to FIGS. 5 and 6, the duct 200 may include a second body portion 220 extending in a second direction D2. The second body portion 220 may extend in a direction intersecting the first direction D1. The second body portion 220 may extend in a direction approximately perpendicular to the extension direction of the first body portion 210. For example, the second body portion 220 may extend to correspond to the lower surface 12b of the tub 12.

The second body portion 220 may be connected to the sump assembly 70. For example, the second body portion 220 may be connected to the sump cover 300. For example, the second body portion 220 may be connected to the connection port 310 of the sump cover 300. For example, the second body portion 220 may be connected to the second connection port 312. For example, the second body portion 220 may be connected to the third connection port 313. The second body portion 220 may be connected to the distribution chamber 121.

For example, water in the second body portion 220 may flow backward and enter the first body portion 210.

The second body portion 220 may include an inlet 230 through which water from the sump assembly 70 is introduced. For example, the second body portion 220 may include a first inlet 231 corresponding to the second connection port 312. For example, the second body portion 220 may include a second inlet 232 corresponding to the third connection port 313.

For example, the second direction D2 may be arranged to correspond approximately to the forward/backward direction. The second direction D2 may be provided to approximately intersect the first direction D1. The second direction D2 may be provided to be approximately perpendicular to the first direction D1.

For example, the duct 200 may have a width extending in a third direction D3. For example, the third direction D3 may be provided to intersect the first direction D1. The third direction D3 may be provided approximately perpendicular to the first direction D1. The third direction D3 may be provided to intersect the second direction D2. The third direction D3 may be provided approximately perpendicular to the second direction D2.

Generally, the duct may penetrate the lower surface of the tub and extend to the lower side of the washing chamber. The duct extending through the tub may be connected to the distribution device disposed in the machine room. To this end, the tub may have an opening through which the duct may pass. However, water may leak at the portion in which the opening is formed. When water leaks, the water usage of the dishwasher may increase and the washing efficiency may decrease. Accordingly, it is desirable to minimize the opening formed in the tub.

In contrast, the duct 200 may be provided without penetrating the tub 12. For example, the duct 200 may be connected to a component of the sump assembly 70 disposed within the tub 12. For example, the duct 200 may be connected to the sump cover 300 disposed within the tub 12. For example, the duct 200 may include the second body portion 220 extending in the second direction D2, and the second body portion 220 may extend toward the sump cover 300. For example, the second body portion 220 may be connected to approximately the center of the tub 12. Accordingly, the tub 12 may not have an opening through which the duct 200 may pass. That is, the number of openings formed in the tub may be reduced. In addition, leakage of water may be minimized.

The duct 200 may be formed by a first frame 700 and a second frame 800. The first frame 700 and the second frame 800 may be separably coupled to each other. The first frame 700 and the second frame 800 may be separably fastened to each other. For example, the first frame 700 and the second frame 800 may not be formed as one part. For example, the first frame 700 may be provided as an injection molded product. For example, the second frame 800 may be provided as an injection molded product. For example, the duct 200 may be manufactured by coupling at least two injection molded products.

The first frame 700 may be referred to as a first injection frame 700. The first frame 700 may be referred to as a first injection molded product 700. The second frame 800 may be referred to as a second injection frame 800. The second frame 800 may be referred to as a second injection product 800.

The duct 200 may be formed by coupling injection molded products. Accordingly, the duct 200 may be relatively easily manufactured even when the duct has a relatively complex shape. In addition, a parting line or a burr may not be formed in the duct 200.

Referring to FIG. 7, the duct 200 may have a curved shape. The duct 200 may have a predetermined portion that is curved. For example, the second body portion 220 of the duct 200 may have a predetermined portion that is curved in the third direction D3.

For example, the first inlet 231 and the second inlet 232 may not be arranged side by side in the third direction D3. For example, a distance L2 along the second direction D2 between the center of the first inlet 231 and the center of the second inlet 232 may be approximately greater than 0. For example, a distance L1 along the third direction D3 between the center of the first inlet 231 and the center of the second inlet 232 may be smaller than a distance L3 connecting the center of the first inlet 231 and the center of the second inlet 232.

Water introduced into the duct 200 may flow along the curved shape of the second body 220. This may reduce the pressure loss of the water.

Meanwhile, the distribution device may be provided to supply water to at least one of the plurality of spray units 41, 42, and 43. In this case, the distribution device may be provided to have various distribution combinations by opening and closing the plurality of connection ports 311, 312, and 313. For example, the distribution device may open at least one of the first connection port 311, the second connection port 312, or the third connection port 313. For example, the distribution device may open only one of the first connection port 311, the second connection port 312, or the third connection port 313. For example, the distribution device may open any two of the first connection port 311, the second connection port 312, or the third connection port 313. For example, the distribution device may open all of the first connection port 311, the second connection port 312, and the third connection port 313. For example, the distribution device may close all of the first connection port 311, the second connection port 312, and the third connection port 313.

For example, considering such various distribution combinations of the distribution device, the plurality of connection ports 311, 312, and 313 of the sump cover 300 may not be arranged side by side. For example, the second connection port 312 and the third connection port 313 may not be arranged side by side in the third direction. In order to align the connection ports 310, which are not arranged side by side, and the inlet 230, the duct 200 may have a predetermined portion curved. For example, the second body portion 220 of the duct 200 may include a curved shape. For example, the first inlet 231 and the second inlet 232 of the duct 200 may not be arranged side by side in the third direction.

For example, when the duct includes a curved shape for various distribution combinations of the distribution device, it may be difficult to form the duct as one part. For example, the duct may be formed as one part through a blow molding method. The duct may be manufactured by putting a molded product into a mold and blowing air into the mold. When manufacturing a duct by the blow molding method, the manufacturing process may become complicated and the manufacturing time may increase. For example, the production efficiency of the duct may decrease.

In contrast, the duct 200 according to the disclosure is formed by coupling at least two injection molded products, and thus the production of the duct 200 may be very easy. Even when the duct 200 includes a complex shape, the duct 200 may be easily manufactured by coupling injection molded products having relatively simple shapes. As a result, the manufacturing process may be simplified and the manufacturing time may be reduced. In other words, the production efficiency of the duct 200 may be improved.

Referring to FIG. 8, the inlet 230 of the duct 200 may be formed by a forced ejection method. For example, the first frame 700 may be provided as an injection molded product. For example, the first frame 700 may not be formed by a blow molding method.

For example, in the case of using a blow molding method, a cutting operation may be involved to remove unnecessary parts when forming ports for inflow/outflow of water in a duct. The cutting operation requires relatively high technology, and steps and/or burrs may be formed on the duct during the cutting operation. Water leakage may occur in a region in which steps and/or burrs are formed. In other words, quality issues in a duct may occur.

In contrast, the inlet 230 of the duct 200 may be manufactured without a separate cutting process. Accordingly, a parting line and/or burr may not be formed on the inlet 230 of the duct 200.

The inlet 230 of the duct 200 may include a sealing portion. For example, a sealing protrusion may be formed at an end of the inlet 230. For example, the first inlet 231 may include a sealing protrusion 2311 provided to seal between the first inlet 231 and the second connection port 312. The sealing protrusion 2311 may protrude from an outer surface of an end of the first inlet 231. For example, the second inlet 232 may include a sealing protrusion 2321 provided to seal between the second inlet 232 and the third connection port 313. The sealing protrusion 2321 may protrude from an outer surface of an end of the second inlet 232.

For example, the sealing portion of the inlet 230 may have an enhanced sealing force due to being formed by a forced ejection method. In other words, the sealing portion of the inlet 230 is manufactured without a cutting process, and thus no parting line and/or burr may remain on the surface of the inlet 230. As a result, leakage of water that may occur at a parting line and/or burr may be prevented. As a result, the sealing portion of the inlet 230 may have a more precise sealing point.

For example, similar to the inlet 230 of the duct 200, the outlet 240 of the duct 200 may also be formed by a forced ejection method. The outlet 240 of the duct 200 may include a sealing portion (not shown).

For example, the first outlet 241 may include a sealing portion (not shown) that seals between the first outlet 241 and the second spray unit 42. The first outlet 241 may include a sealing portion (not shown) that seals between the first outlet 241 and the first connecting duct 410.

For F example, the second outlet 242 may include a sealing portion (not shown) that seals between the second outlet 242 and the third spray unit 43. The second outlet 242 may include a sealing portion (not shown) that seals between the second outlet 242 and the second connecting duct 420.

FIG. 9 is an exploded view of a duct according to one embodiment. FIG. 10 is a perspective view of an example of a duct, which is taken along a cut line, according to one embodiment. FIG. 11 is a cross-sectional view of the duct shown in FIG. 10. FIG. 12 is a cross-sectional view illustrating an example of a partition of a duct according to one embodiment. FIG. 13 is a cross-sectional view illustrating an example of a partition of a duct according to one embodiment. FIG. 14 is a perspective view of an example of a duct, which is taken along a cut line, according to one embodiment. FIG. 15 is a cross-sectional view of the duct shown in FIG. 14.

Referring to FIG. 9, the duct 200 may include a first frame 700 and a second frame 800. The first frame 700 and the second frame 800 may be provided to correspond to each other. The first frame 700 and the second frame 800 may be separably coupled to each other. The duct 200 may be manufactured by assembling the first frame 700 and the second frame 800.

The first frame 700 may form at least a part of the first body portion 210 and the second body portion 220. The second frame 800 may form another part of the first body portion 210 and the second body portion 220.

For example, the first frame 700 may include a region 700a corresponding to the first body portion 210 and a region 700b corresponding to the second body portion 220. For example, the first frame 700 may form at least a part of a rear portion and a lower portion of the duct 200.

For example, the second frame 800 may include a region 800a corresponding to the first body portion 210 and a region 800b corresponding to the second body portion 220. For example, the second frame 800 may form at least a part of a front portion and an upper portion of the duct 200.

The region 700a of the first frame 700 and the region 800a of the second frame 800 may form the first body portion 210. The region 700b of the first frame 700 and the region 800b of the second frame 800 may form the second body portion 220.

Hereinafter, the region 700a of the first frame 700 may be referred to as a first body portion 700a of the first frame 700. The region 700b of the first frame 700 may be referred to as a second body portion 700b of the first frame 700. The region 800a of the second frame 800 may be referred to as a first body portion 800a of the second frame 800. The region 800b of the second frame 800 may be referred to as a second body portion 800b of the second frame 800.

For example, the first frame 700 may include an edge 700c protruding toward the second frame 800. The edge 700c may extend toward the second frame 800. For example, the edge 700c may extend in the first direction D1. For example, the edge 700c may extend in the second direction D2. For example, the edge 700c may be provided with a first coupling portion 710 to be described below. For example, the edge 700c may be formed with a plurality of first coupling members 711 to be described below. The edge 700c may be referred to as a first edge 700c.

For example, the second frame 800 may include an edge 800c protruding toward the first frame 700. The edge 800c may extend toward the first frame 700. For example, the edge 800c may extend in the first direction D1. For example, the edge 800c may extend in the second direction D2. For example, the edge 800c may be provided with a second coupling portion 810 to be described below. For example, the edge 800c may be formed with a plurality of second coupling members 811 to be described below. The edge 800c may be referred to as a second edge 800c.

The first frame 700 may include the first coupling member 710. The first coupling member 710 of the first frame 700 may correspond to the second coupling portion 810 of the second frame 800. The first coupling portion 710 of the first frame 700 may be separably coupled to the second coupling portion 810 of the second frame 800.

For example, the first coupling portion 710 may include the plurality of first coupling members 711. The plurality of first coupling members 711 may be arranged along the first direction D1 and the second direction D2. The plurality of first coupling members 711 may be arranged along the edge 700c of the first frame 700. The plurality of first coupling members 711 may be arranged to be spaced apart from each other. The plurality of first coupling members 711 may correspond to the plurality of second coupling members 811 to be described below. The plurality of first coupling members 711 may be separably coupled to the plurality of second coupling members 811. For example, the plurality of first coupling members 711 may be provided as hook grooves. The plurality of first coupling members 711 may be referred to as a plurality of hook grooves 711.

However, the disclosure is not limited thereto, and the plurality of first coupling members 711 may be provided as a plurality of hooks. In this case, the plurality of second coupling members 811 to be described below may be provided as a plurality of hook grooves corresponding to the plurality of hooks.

For example, the first coupling portion 710 may include a first coupling protrusion 712. The first coupling protrusion 712 may protrude toward the second frame 800. The first coupling protrusion 712 may extend along the first direction D1. The first coupling protrusion 712 may extend along the second direction D2. For example, the first coupling protrusion 712 may include a shape that extends along the edge 700c of the first frame 700. For example, the first coupling protrusion 712 may extend along the third direction D3.

For example, the first coupling protrusion 712 may be provided as at least one first coupling protrusion. For example, the first coupling protrusion 712 may be provided as a plurality of first coupling protrusions. The plurality of first coupling protrusions 712 may be arranged to be spaced apart from each other. The plurality of first coupling protrusions 712 may be provided to form a first coupling groove 713 to be described below. For example, the first coupling protrusion 712 may include a first-A coupling protrusion 712a and a first-B coupling protrusion 712b provided on the inner side of the first-A coupling protrusion 712a. For example, the first-A coupling protrusion 712a and the first-B coupling protrusion 712b may be laterally arranged with respect to the extension direction of the edge 700c. For example, the first-A coupling protrusion 712a may form at least a part of the edge 700c of the first frame 700. For example, the first-B coupling protrusion 712b may be arranged closer to a guide flow path 250, which will be described below, than the first-A coupling protrusion 712a may be.

For example, the first coupling portion 710 may include a first coupling groove 713. The first coupling groove 713 may extend along the first direction D1. The first coupling groove 713 may extend along the second direction D2. For example, the first coupling groove 713 may include a shape that extends along the edge 700c of the first frame 700. For example, the first coupling groove 712 may extend along the third direction D3.

The first coupling groove 713 may be arranged adjacent to the first coupling protrusions 712. The first coupling groove 713 may be formed in a portion that is relatively depressed as the first coupling protrusions 712 protrude. For example, the first coupling groove 713 may be arranged between the plurality of first coupling protrusions 712. For example, the first coupling groove 713 may be arranged between the first-A coupling protrusion 712a and the first-B coupling protrusion 712b.

For example, the first coupling groove 713 may be provided as at least one first coupling groove 713. For example, the first coupling groove 713 may be provided as a plurality of first coupling grooves 713. For example, each of the plurality of first coupling grooves 713 may be arranged to alternate with each of the plurality of first coupling protrusions 712.

The second frame 800 may include a second coupling portion 810. The second coupling portion 810 of the second frame 800 may correspond to the first coupling portion 710 of the first frame 700. The second coupling portion 810 of the second frame 800 may be separably coupled to the first coupling portion 710 of the first frame 700.

For example, the second coupling portion 810 may include the plurality of second coupling members 811. The plurality of second coupling members 811 may be arranged along the first direction D1 and the second direction D2. The plurality of second coupling members 811 may be arranged along the edge 800c of the second frame 800. The plurality of second coupling members 811 may be arranged to be spaced apart from each other. The plurality of second coupling members 811 may correspond to the plurality of first coupling members 711. The plurality of second coupling members 811 may be separably coupled to the plurality of first coupling members 711. For example, the plurality of second coupling members 811 may be provided as hooks. The plurality of second coupling members 811 may be referred to as a plurality of hooks 811.

However, the disclosure is not limited thereto, and the plurality of second coupling members 811 may be provided as a plurality of hook grooves. In this case, the plurality of first coupling members 711 to be described below may be provided as a plurality of hooks corresponding to the plurality of hook grooves.

For example, the second coupling portion 810 may include a second coupling protrusion 812. The second coupling protrusion 812 may protrude toward the first frame 700.

The second coupling protrusion 812 may extend along the first direction D1. The second coupling protrusion 812 may extend along the second direction D2. For example, the second coupling protrusion 812 may include a shape that extends along the edge 800c of the second frame 800. For example, the second coupling protrusion 812 may extend along the third direction D3.

For example, the second coupling protrusion 812 may be provided as at least one second coupling protrusion. For example, the second coupling protrusion 812 may be provided as a plurality of second coupling protrusions. The plurality of second coupling protrusions 812 may be arranged to be spaced apart from each other. The plurality of second coupling protrusions 812 may be provided to form a second coupling groove 813 to be described below. For example, the second coupling protrusion 812 may include a second-A coupling protrusion 812a and a second-B coupling protrusion 812b provided on the inner side of the second-A coupling protrusion 812a. For example, the second-A coupling protrusion 812a and the second-B coupling protrusion 812b may be laterally arranged with respect to the extension direction of the edge 800c. For example, the second-A coupling protrusion 812a may form at least a part of the edge 800c of the second frame 800. For example, the second-B coupling protrusion 812b may be arranged closer to a guide flow path 250, which will be described below, than the second-A coupling protrusion 812a may be.

For example, the second coupling portion 810 may include a second coupling groove 813. The second coupling groove 813 may extend along the first direction D1. The second coupling groove 813 may extend along the second direction D2. For example, the second coupling groove 813 may include a shape that extends along the edge 800c of the second frame 800. For example, the second coupling groove 813 may include a shape extending along the third direction D3.

The second coupling groove 813 may be arranged adjacent to the second coupling protrusions 812. The second coupling groove 813 may be formed in a portion that is relatively depressed as the second coupling protrusions 812 protrude. For example, the second coupling groove 813 may be arranged between the plurality of second coupling protrusions 812. For example, the second coupling groove 813 may be arranged between the second-A coupling protrusion 812a and the second-B coupling protrusion 812b.

For example, the second coupling groove 813 may be provided as at least one second coupling groove 813. For example, the second coupling groove 813 may be provided as a plurality of second coupling grooves 813. For example, each of the plurality of second coupling grooves 813 may be arranged to alternate with each of the plurality of second coupling protrusions 812.

Referring to FIGS. 10, 11, 14, and 15, an example of a coupling relationship between the first frame 700 and the second frame 800 will be described.

The first coupling portion 710 of the first frame 700 and the second coupling portion 810 of the second frame 800 may be provided to be coupled to each other.

For example, the plurality of first coupling members 711 may be provided to be hook-coupled to the plurality of second coupling members 811.

Hereinafter, for convenience of description, at least one of the plurality of first coupling members 711 may be referred to as a hook groove 711. At least one of the plurality of second coupling members 811 may be referred to as a hook 811.

For example, the hook 811 may be formed on the second coupling protrusion 812. For example, the hook 811 may protrude from the second-A coupling protrusion 812a. For example, the hook 811 may protrude from the second-A coupling protrusion 812a in the third direction D3.

For example, the hook groove 711 may be formed in the first coupling protrusion 712. For example, the hook groove 711 may be formed in at least a portion of the first-A coupling protrusion 712a that has been cut away.

The hook 811 and the hook groove 711 may be provided to correspond to each other. The hook 811 and the hook groove 711 may be separably coupled to each other. As the hook 811 is coupled to the hook groove 711, the hook 811 may be accommodated in the hook groove 711. While the hook 811 and the hook groove 711 are coupled to each other, the hook 811 may be provided to be caught on the first frame 700.

As the hook groove 711 of the first frame 700 and the hook 811 of the second frame 800 are coupled to each other, the duct 200 may be formed. The hook groove 711 and the hook 811 are provided to contact each other to seal the guide flow path 250 formed inside the duct 200.

For example, the first coupling portion 710 of the first frame 700 and the second coupling portion 810 of the second frame 800 may be provided as a labyrinth seal structure.

The first coupling protrusion 712 of the first frame 700 may be coupled to the second coupling groove 813 of the second frame 800. The first coupling protrusion 712 may be inserted into the second coupling groove 813. For example, the first-B coupling protrusion 712b may be inserted into the second coupling groove 813. However, the disclosure is not limited thereto, and the first-A coupling protrusion 712a may be inserted into the second coupling groove 813.

The second coupling protrusion 812 of the second frame 800 may be coupled to the first coupling groove 713 of the first frame 700. The second coupling protrusion 812 may be inserted into the first coupling groove 713. For example, the second-A coupling protrusion 812a may be inserted into the first coupling groove 713. However, the disclosure is not limited thereto, and the second-B coupling protrusion 812b may be inserted into the first coupling groove 713.

The first coupling protrusion 712 of the first frame 700 and the second coupling protrusion 812 of the second frame 800 may be provided to contact each other. The first coupling protrusion 712 of the first frame 700 and the second coupling protrusion 812 of the second frame 800 may be provided to laterally contact each other. For example, the first coupling protrusion 712 of the first frame 700 and the second coupling protrusion 812 of the second frame 800 may be provided to contact each other in the third direction D3.

For example, the first-A coupling protrusion 712a and the second-A coupling protrusion 812a may be provided to contact each other. For example, the second-A coupling protrusion 812a and the first-B coupling protrusion 712b may be provided to contact each other. For example, the first-B coupling protrusion 712b and the second b coupling protrusion 812b may be provided to contact each other.

When the first frame 700 and the second frame 800 are coupled to each other, the first coupling portion 710 and the second coupling portion 810 may be provided to contact each other, sealing the guide flow path 250 formed inside the duct 200. Accordingly, the water flowing in the guide flow path 250 may not leak out of the duct 200. In other words, the water leakage of the duct 200 may be prevented.

The duct 200 may include the guide flow path 250. The guide flow path 250 may be formed inside the duct 200 by the coupling of the first frame 700 and the second frame 800. The guide flow path 250 may be provided to connect the inlet 230 and the outlet 240. The guide flow path 250 may communicate with the inlet 230. The guide flow path 240 may communicate with the outlet 240.

The water may be provided to flow in the guide flow path 250. The water may be provided to move along the guide flow path 250. The guide flow path 250 may be provided to guide the water. The guide flow path 250 may be provided to guide the water introduced from the inlet 230 to the outlet 240.

The duct 200 may include at least two guide flow paths 250. For example, the duct 200 may include a plurality of guide flow paths 250. For example, the duct 200 may include a first guide flow path 251 and a second guide flow path 252.

The plurality of guide flow paths 250 may be arranged in the third direction D3. For example, the first guide flow path 251 and the second guide flow path 252 may be arranged side by side along the third direction D3.

For example, the first guide flow path 251 may be formed between the first inlet 231 and the first outlet 241. The first guide flow path 251 may guide the water introduced from the first inlet 231 to the first outlet 241. The water moving along the first guide flow path 251 may be provided to the second spray unit 42.

For example, a flow path space 740 of the first frame 700 and a flow path space 830 of the second frame 800 may form the first guide flow path 251. For example, the flow path space 740 of the first frame 700 may be formed by a flow path space 741 of a front frame 720 to be described below and a flow path space 742 of a rear frame 730 to be described below.

For example, the second guide flow path 252 may be formed between the second inlet 232 and the second outlet 242. The second guide flow path 242 may guide the water introduced from the second inlet 232 to the second outlet 242. The water moving along the second guide flow path 242 may be provided to the third spray unit 43.

For example, a flow path space 750 of the first frame 700 and a flow path space 840 of the second frame 800 may form the second guide flow path 252. For example, the flow path space 750 of the first frame 700 may be formed by a flow path space 751 of the front frame 720 and a flow path space 752 of the rear frame 730.

The plurality of guide flow paths 250 may be provided to be divided from each other. For example, the first guide flow path 251 and the second guide flow path 252 may be provided to be divided from each other. For example, the first guide flow path 251 may guide the water provided to the second spray unit 42, and the second guide flow path 252 may guide the water provided to the third spray unit 43.

In general, a duct includes a single flow path, and water flowing in the single flow path is branched between the plurality of spray units. Accordingly, it is difficult to supply water to a portion of the plurality of spray units, which may lead to an increase in the water usage of the dishwasher. In addition, as the water flowing in the duct is allowed to move to each of the plurality of spray units, the pressure loss of the water may increase.

In contrast, the duct 200 according to the disclosure may include at least two guide flow paths 250 that are divided from each other. Accordingly, the water introduced into the duct 200 may be individually provided to each of the plurality of spray units. In other words, it is possible to supply the water to a portion of the plurality of spray units, and the water usage of the dishwasher may be reduced. In addition, the water flowing through each of the flow paths in the duct may be supplied to a corresponding one of the plurality of spray units. Accordingly, the water does not branch in the duct 200, and the pressure loss of the water may be reduced.

The duct 200 may include a partition 260. The partition 260 may be provided to partition the guide flow path 250. For example, the partition 260 may be provided to divide the first guide flow path 251 and the second guide flow path 252.

For example, the first frame 700 may include a first partition 260a. The second frame 800 may include a second partition 260b. When the first frame 700 and the second frame 800 are coupled to each other, the first partition 260a and the second partition 260b may be coupled to each other. The first partition 260a and the second partition 260b may correspond to each other. The first partition 260a and the second partition 260b may be provided to face each other. Through the first partition 260a being coupled to the second partition 260b, the partition 260 may be formed.

For example, the first partition 260a of the first frame 700 and the second partition 260b of the second frame 800 may be provided as a labyrinth seal structure.

The first partition 260a may include a first partition protrusion 261. The first partition protrusion 261 may be formed on the first frame 700 and protrude toward the second frame 800. The first partition protrusion 261 may extend along the first direction D1. The first partition protrusion 261 may extend along the second direction D2.

For example, the first partition protrusion 261 may be provided as at least one first partition protrusion. The first partition protrusion 261 may be provided as a plurality of first partition protrusions. For example, the first partition protrusion 261 may include a first-A partition protrusion 261a and a first-B partition protrusion 261b.

The first-A partition protrusion 261a may be arranged closer to the first guide flow path 251 than the first-B partition protrusion 261b may be. The first-B partition protrusion 261b may be arranged closer to the second guide flow path 252 than the first-A partition protrusion 261a may be. The first-A partition protrusion 261a and the first-B partition protrusion 261b may be arranged to be spaced apart from each other.

The second partition 260b may include a second partition protrusion 262. The second partition protrusion 262 may be formed on the second frame 800 and may protrude toward the first frame 700. The second partition protrusion 262 may extend along the first direction D1. The second partition protrusion 262 may extend along the second direction D2.

For example, the second partition protrusion 262 may be provided as at least one second partition protrusion. The second partition protrusion 262 may be provided as a plurality of second partition protrusions. For example, the second partition protrusion 262 may include a second-A partition protrusion 262a and a second-B partition protrusion 262b.

The second-A partition protrusion 262a may be arranged closer to the first guide flow path 251 than the second-B partition protrusion 262b may be. The second-B partition protrusion 262b may be arranged closer to the second guide flow path 252 than the second-A partition protrusion 262a may be. The second-A partition protrusion 262a and the second-B partition protrusion 262b may be arranged to be spaced apart from each other.

Meanwhile, the first partition protrusion 261 and the second partition protrusion 262 may be provided to contact each other. The first partition protrusion 261 and the second partition protrusion 262 may be provided to laterally contact each other. For example, the first partition protrusion 261 and the second partition protrusion 262 may be provided to contact each other in the third direction D3. As a result, each of the plurality of guide flow paths 250 may be clearly divided from each other. For example, the water in the first guide flow path 251 and the water in the second guide flow path 252 may be provided not to affect each other. For example, the water in the first guide flow path 251 and the water in the second guide flow path 252 may not be mixed with each other.

For example, the first-A partition protrusion 261a and the second-A partition protrusion 262a may be provided to contact each other. For example, the first-B partition protrusion 261b and the second-B partition protrusion 262b may be provided to contact each other.

The first partition 260a may include a fixing hole 263. The fixing hole 263 may be formed in the first frame 700. The fixing hole 263 may be formed in a portion that is relatively depressed as the first partition protrusion 261 protrudes. For example, the fixing hole 263 may be provided between a plurality of first partition protrusions 261. For example, the fixing hole 263 may be formed between the first-A partition protrusion 261a and the first-B partition protrusion 261b.

For example, the fixing hole 263 may be provided as at least one fixing hole. For example, the fixing hole 263 may be provided as a plurality of fixing holes. For example, the plurality of fixing holes 263 may be arranged along the first direction D1. For example, the plurality of fixing holes 263 may be arranged along the second direction D2.

The second partition 260b may include a fixing protrusion 264. The fixing protrusion 264 may be formed on the second frame 800 and may protrude toward the first frame 700. The fixing protrusion 264 may be formed on the second frame 800 and may be provided to be inserted into the fixing hole 263. For example, the fixing protrusion 264 may be provided between the plurality of second partition protrusions 262. For example, the fixing protrusion 264 may be formed between the second-A partition protrusion 262a and the second-B partition protrusion 262b.

For example, the fixing protrusion 264 may be provided as at least one fixing protrusion. For example, the fixing protrusion 263 may be provided as a plurality of fixing protrusions. For example, the plurality of fixing protrusions 264 may be arranged along the first direction D1. For example, the plurality of fixing protrusions 264 may be arranged along the second direction D2.

Meanwhile, the fixing protrusion 264 may be coupled to the fixing hole 263. The fixing protrusion 264 may be inserted into the fixing hole 263. As the fixing protrusion 264 is inserted into the fixing hole 263, the fixing protrusion 264 may be positioned adjacent to the first partition protrusion 261. For example, the fixing protrusion 264 may be positioned between the first-A partition protrusion 261a and the first-B partition protrusion 261b. As the fixing protrusion 264 is inserted into the fixing hole 263, the first frame 700 and the second frame 800 may be fixed to each other.

In the drawing, the first frame 700 is illustrated as including the fixing hole 263 and the second frame 800 as including the fixing protrusion 264, but the disclosure is not limited thereto. Conversely, the second frame 800 may include a fixing hole 263, and the first frame 700 may include a fixing protrusion 264 inserted into the fixing hole 263.

As the fixing protrusion 264 is inserted into the fixing hole 263, at least a portion of the fixing protrusion 264 may protrude through the fixing hole 263. The portion of the fixing protrusion 264 protruding through the fixing hole 263 may be provided to be fixed to the first frame 700. As a result, even under high water pressure inside the duct 200, the first frame 700 and the second frame 800 may not be separated from each other. In other words, the assembling property of the duct 200 may be improved.

For example, referring to FIG. 12, a portion protruding through the fixing hole 263 of the fixing protrusion 264 may be provided to be caught onto the fixing hole 263 by hot staking. For example, a portion protruding through the fixing hole 263 of the fixing protrusion 264 may have a shape deformed by heat and pressure. The deformed fixing protrusion 264 may be fixed to the first frame 700 upon cooling. For example, a portion protruding through the fixing hole 263 of the fixing protrusion 264 may form a head portion 2641 by hot staking. For example, the head portion 2641 may have a size larger than a size of the fixing hole 263. For example, the head portion 2641 may have a diameter larger than a diameter of the fixing hole 263. Accordingly, the fixing protrusion 264 may be stably fixed to the first frame 700 while being inserted into the fixing hole 263.

For example, referring to FIG. 13, the fixing protrusion 264 may include a fixing hook 2642. The fixing hook 2642 may be formed at an end of the fixing protrusion 264. While the fixing protrusion 264 is inserted into the fixing hole 263, the fixing hook 2642 may be provided to be caught onto the fixing hole 263. That is, the fixing hook 2642 may be fixed to the first frame 700. Accordingly, the fixing protrusion 264 may be stably fixed to the first frame 700 while being inserted into the fixing hole 263.

FIG. 16 is an exploded view of an example of a first frame of a duct according to one embodiment. FIG. 17 is a view illustrating a state before a front frame and a rear frame of the first frame are coupled to each other according to one embodiment. FIG. 18 is a view illustrating a state in which the front frame and the rear frame shown in FIG. 17 are coupled to each other. FIG. 19 is a view illustrating a state in which the front frame and the rear frame shown in FIG. 18 are coupled to each other, when viewed from below. FIG. 20 is a view illustrating a state in which the front frame and the rear frame shown in FIG. 18 are coupled to each other, taken along a cut line. FIG. 21 is a view illustrating a state before a second frame is coupled to the first frame shown in FIG. 18. FIG. 22 is a view illustrating a state in which the second frame is coupled to the first frame shown in FIG. 21. FIG. 23 is a view illustrating a connecting region of the first frame and the second frame shown in FIG. 22, taken along a cut line.

Referring to FIG. 16, the first frame 700 may include a front frame 720 and a rear frame 730. As the front frame 720 and the rear frame 730 are assembled with each other, the first frame 700 may be formed.

For example, the first frame 700 is formed by coupling the front frame 720 and the rear frame 730, and thus the first frame 700 may be easily manufactured. For example, even when the first frame 700 has a complex shape, the first frame 700 may be manufactured more easily by assembling the front frame 720 and the rear frame 730 having relatively simple shapes. For example, the front frame 720 and the rear frame 730 may each be separately manufactured by a forced ejection method.

Although not shown in the drawing, similar to the example of the first frame 700 described above, the second frame 800 may include a front frame (not shown) and a rear frame (not shown) that are assembleable with each other. The coupling of the front frame and the rear frame of the second frame 800 is substantially the same as the coupling of the front frame 720 and the rear frame 730 of the first frame 700, and a detailed description thereof is omitted.

The front frame 720 of the first frame 700 may be connected to the sump assembly 70. For example, the front frame 720 may be connected to the sump cover 300. The front frame 720 may be connected to the connection port 310. The front frame 720 may include the inlet 230.

The front frame 720 may include a region 720b corresponding to the second body portion 220. In the drawing, the front frame 720 is illustrated as including only the region 720b corresponding to the second body portion 220, but the disclosure is not limited thereto. For example, the front frame 720 may include a region (not illustrated) corresponding to the first body portion 210 and the region 720b corresponding to the second body portion 220.

The front frame 720 may include a flow path space 741 and a flow path space 751 divided from the flow path space 741. For example, the flow path space 741 may be connected to a flow path space 742 of the rear frame 730 to be described below, thereby forming the flow path space 740. For example, the flow path space 751 may be connected to a flow path space 752 of the rear frame 730 to be described below, thereby forming the flow path space 750.

The front frame 720 may include a flow path body 726 forming the flow path space 741 and the flow path space 751. For example, the flow path body 726 may be provided to form the first partition protrusion 261 arranged on the front frame 720. For example, the flow path body 726 may be provided to form the first coupling protrusion 712 arranged on the front frame 720. For example, the flow path body 726 may be provided to form the first-B coupling protrusion 712b arranged on the front frame 720.

The rear frame 730 of the first frame 700 may be separably coupled to the rear of the front frame 720. For example, the rear frame 730 may be coupled to the rear of the front frame 720 to be separable in the second direction D2.

The rear frame 730 may include a region 730a corresponding to the first body portion 210. The rear frame 730 may include a region 730b corresponding to the second body portion 220. The region 730b of the rear frame 730 may be provided to be connected to the region 720b of the front frame 720.

The rear frame 730 may include a flow path space 742 and a flow path space 752 divided from the flow path space 742. For example, the flow path space 742 may be connected to the flow path space 741 of the front frame 720 to form the flow path space 740. For example, the flow path space 752 may be connected to the flow path space 751 of the front frame 720 to form the flow path space 750.

The rear frame 730 may include a flow path body 736 forming the flow path space 742 and the flow path space 752. For example, the flow path body 736 may be provided to form the first partition protrusion 261 arranged on the rear frame 730. For example, the flow path body 726 may be provided to form the first coupling protrusion 712 arranged on the rear frame 730. For example, the flow path body 726 may be provided to form the first-B coupling protrusion 712b arranged on the rear frame 730.

Referring to FIGS. 17 to 23, the front frame 720 may include a first connecting portion 721 formed at an end facing the rear frame 730. The rear frame 730 may include a second connecting portion 731 formed at an end facing the front frame 720.

The first connecting portion 721 and the second connecting portion 731 may be provided to correspond to each other. The first connecting portion 721 and the second connecting portion 731 may be provided to be separably coupled to each other. For example, the first connecting portion 721 and the second connecting portion 731 may be separably coupled to each other in the second direction D2.

For example, the second connecting portion 731 may form an accommodation space S to accommodate the first connecting portion 721. As the first connecting portion 721 is accommodated in the accommodation space S, the front frame 720 and the rear frame 730 may be connected to each other. Details thereof will be described below.

The first connecting portion 721 may include a front connecting body 722 protruding from the flow path body 726 toward the rear frame 730. For example, the front connecting body 722 may extend rearward. For example, the front connecting body 722 may include a first extension portion 7221 that extends approximately in the third direction D3 and a second extension portion 7222 that extends from both sides of the first extension portion 7221 approximately in the first direction D1. For example, the second extension portion 7222 may form a part of the edge of the front frame 720. For example, the second extension portion 7222 may form a part of the first-A coupling protrusion 712a of the front frame 720.

The first connecting portion 721 may include a connecting hook 723. For example, the connecting hook 723 may be formed on the front connecting body 722. For example, the connecting hook 723 may protrude from the second extension portion 7222 of the front connecting body 722. For example, the connecting hook 723 may protrude from the second extension portion 7222 of the front connecting body 722 in the third direction D3. The connecting hook 723 may be separably coupled to a hook groove 734 to be described below.

The first connecting portion 721 may include a protrusion groove 724. The protrusion groove 724 may be provided adjacent to the connecting hook 723. For example, the protrusion groove 724 may be formed on the front connecting body 722. For example, the protrusion groove 724 may be formed as a portion of the front connecting body 722 that has been cut away. The protrusion groove 724 may be separably coupled to a catching protrusion 733 to be described below.

The first connecting portion 721 may include a first partition coupling portion 725. As the first connecting portion 721 and the second connecting portion 722 are connected to each other, the first partition coupling portion 725 may be connected to a second partition coupling portion 735 to be described below. For example, the first partition coupling portion 725 may protrude toward the rear frame 730. For example, the first partition coupling portion 725 may be provided between the plurality of first partition protrusions 261 arranged on the front frame 720. For example, the first partition coupling portion 725 may be formed between the first-A partition protrusion 261a and the first-B partition protrusion 261b arranged on the front frame 720.

The second connecting portion 731 may include a rear connecting body 732 protruding from the flow path body 736 toward the front frame 720. For example, the rear connecting body 732 may extend forward. The rear connecting body 732 may include a first extension portion 7321 extending approximately in the third direction D3 and a second extension portion 7322 extending approximately in the first direction D1 from both sides of the first extension portion 7321. For example, the second extension portion 7322 may form a part of the edge of the rear frame 730. For example, the second extension portion 7322 may form a part of the first-A coupling protrusion 712a of the rear frame 730.

The second connecting portion 731 may include an accommodation space S. For example, the rear connecting body 732 may be provided to form the accommodation space S. The accommodation space S may be formed between the rear connecting body 732 and the flow path body 736. At least a part of the first connecting portion 721 of the front frame 720 may be inserted into the accommodation space S.

The second connecting portion 731 may include a catching protrusion 733. For example, the catching protrusion 733 may be formed on the rear connecting body 732. For example, the catching protrusion 733 may protrude from the second extension portion 7322 of the rear connecting body 732. For example, the catching protrusion 733 may protrude approximately in the first direction D1 from the second extension portion 7322 of the rear connecting body 732. For example, the catching protrusion 733 may protrude approximately upwardly from the second extension portion 7322 of the rear connecting body 732. The catching protrusion 733 may be separably coupled to the protrusion groove 724.

The second connecting portion 731 may include a hook groove 734. The hook groove 734 may be provided adjacent to the catching protrusion 733. For example, the hook groove 734 may be formed in the rear connecting body 723. For example, the hook groove 734 may be formed as a portion of the rear connecting body 723 that has been cut away. The hook groove 734 may be separably coupled with the connecting hook 723.

The second connecting portion 731 may include a second partition coupling portion 735. The second partition coupling portion 735 may be coupled to the first partition coupling portion 725. For example, the second partition coupling portion 735 may be provided to accommodate the first partition coupling portion 725. For example, the first partition coupling portion 725 may be inserted into the second partition coupling portion 735. For example, the second partition coupling portion 735 may be provided between a plurality of first partition protrusions 261 arranged on the rear frame 730. For example, the second partition coupling portion 735 may be formed between the first-A partition protrusion 261a and the first-B partition protrusion 261b arranged on the rear frame 730.

Meanwhile, contrary to the above-described example, the front frame 720 may include the second connecting portion 731, and the rear frame 730 may include the first connecting portion 721. For example, the front frame 720 may include an accommodation space S in which the rear frame 730 may be accommodated.

Referring to FIGS. 17 to 23, an example of a coupling process of the front frame 720 and the rear frame 730 and an example of a coupling relationship thereof will be described.

The front frame 720 and the rear frame 730 may be separably coupled to each other. For example, the front frame 720 and the rear frame 730 may be separably coupled approximately in the second direction D2. For example, the front frame 720 and the rear frame 730 may be separably coupled approximately in the front-back direction.

For example, at least a part of the first connecting portion 721 may be provided to be inserted into at least a part of the second connecting portion 731. The front connecting body 722 of the front frame 720 may be provided to be inserted into the accommodation space S of the rear frame 730. The front connecting body 722 may be provided to be accommodated in the accommodation space S. In this way, the front connecting body 722 and the rear connecting body 732 may be coupled to each other.

For example, referring to FIG. 19 and FIG. 20, the front connecting body 722 may be provided to be inserted into the accommodation space S. The front connecting body 722 and the rear connecting body 732 may be provided to be in contact with each other. For example, the rear connecting body 732 may be provided to surround the front connecting body 722. In this way, an area between the front frame 720 and the rear frame 730 may be sealed. Water leakage occurring between the front frame 720 and the rear frame 730 may be prevented.

For example, the connecting hook 723 may pass through the accommodation space S, then be accommodated in the hook groove 734. The connecting hook 723 may be provided to be caught onto the catching protrusion 733. For example, as the connecting hook 723 is caught by the catching protrusion 733 in approximately the second direction D2, the front frame 720 and the rear frame 730 may be prevented from being separated from each other.

For example, the catching protrusion 733 may be accommodated in the catching protrusion groove 724. The catching protrusion 733 may be provided to be caught by the connecting hook 723. For example, as the catching protrusion 733 is caught by the connecting hook 723 in approximately the second direction D2, the front frame 720 and the rear frame 730 may be prevented from being separated from each other.

For example, the accommodation space S may include an accommodation space Sa. For example, the accommodation space Sa may be formed as at least a portion of the front frame 720 is inserted into the accommodation space S. For example, the accommodation space Sa may refer to an area, in the entire area of the accommodation space S, except for an area occupied by the front frame 720 while the front frame 720 and the rear frame 730 are coupled to each other. For example, the accommodation space Sa may be formed between the second extension portion 7222 of the front connecting body 722 and the first-B coupling protrusion 712b arranged on the rear frame 730.

For example, the first partition coupling portion 725 of the front frame 720 and the second partition coupling portion 735 of the rear frame 730 may be coupled to each other. For example, the first partition coupling portion 725 may form a protrusion protruding toward the rear frame 730, and the second partition coupling portion 735 may form a groove to accommodate the first partition coupling portion 725. However, the disclosure is not limited thereto, and the first partition coupling portion 725 may be provided to form a groove, and the second partition coupling portion 735 may be provided to form a protrusion.

As the first partition coupling portion 725 and the second partition coupling portion 735 are coupled to each other, the first partition portion 260a formed on the front frame 720 and the first partition portion 260a formed on the rear frame 730 may be connected to each other.

As the front frame 720 and the rear frame 730 are coupled to each other, the flow path space 740 may be formed. As the front frame 720 and the rear frame 730 are coupled to each other, the flow path space 750 may be formed.

Referring to FIGS. 21 to 23, while the front frame 720 and the rear frame 730 are coupled to each other, the second frame 800 may be coupled to the first frame 700.

The second frame 800 may be inserted into the accommodation space S of the rear frame 730 while the front frame 720 and the rear frame 730 are coupled to each other. For example, the second frame 800 may be inserted into the accommodation space Sa. The second frame 800 may be coupled to the first frame 700 and provided to restrict the movement of the first connecting portion 721 of the first frame 700.

The second frame 800 may include a protrusion 820 protruding from the edge 800c of the second frame 800. For example, the protrusion 820 may protrude outwardly from the edge 800c. The protrusion 820 may protrude approximately in the third direction D3 from the edge 800c. The protrusion 820 may be formed at a position corresponding to the accommodation space S. The protrusion 820 may be formed at a position corresponding to the accommodation space Sa.

For example, the protrusion 820 of the second frame 800 may be inserted into the accommodation space Sa and provided to come into contact with the first connecting portion 721. The protrusion 820 of the second frame 800 may be inserted into the accommodation space Sa and provided to restrict movement of the first connecting portion 721. In this way, the protrusion 820 of the second frame 800 may be inserted into the accommodation space Sa to prevent the first connecting portion 721 and the second connecting portion 722 from being separated from each other. For example, the protrusion 820 may prevent the connecting hook 723 from being separated from the hook groove 734.

For example, the protrusion 820 may be provided to be in contact with the second extension portion 7222 of the front connecting body 722. For example, the protrusion 820, and the second extension portion 7222 of the front connecting body 722 may be laterally sealed.

FIG. 24 is a side cross-sectional view illustrating a part of a dishwasher according to one embodiment.

Referring to FIG. 24, the first connecting portion 721 of the front frame 720 may be arranged in the second body portion 700b of the first frame 700. The first connecting portion 721 may be arranged in the second body portion 720b of the front frame 720.

The second connecting portion 731 of the rear frame 730 may be arranged in the second body portion 700b of the first frame 700. The second connecting portion 731 may be arranged in the second body portion 730b of the rear frame 730.

A region in which the first connecting portion 721 is coupled to the second connecting portion 731 may be arranged in the second body portion 700b.

In general, it is desirable that the first spray unit 41 of the spray device 40 is provided to secure the widest possible spray range. For example, the first spray unit 41 may have a shape extended as long as possible. For example, the first spray unit 41 and the duct 200 may be provided to be spaced apart by a predetermined gap G while avoiding interference with each other. Considering this, the space between the rear wall 12f) of the tub 12 and the first body portion 210 of the duct 200 may be formed as small as possible to prevent the size of the tub 12 from increasing.

For example, a region in which the first connecting portion 721 is connected to the second connecting portion 731 may be formed in the second body portion 700b, and thus be positioned in a space between the lower surface 12b of the tub 12 and the second body portion 220 of the duct 200. Accordingly, the connection region of the first connection portion 721 and the second connection portion 731 may not be positioned in a space between the rear wall 12f) of the tub 12 and the first body portion 210 of the duct 200.

There is no need to secure a space for arranging the first connection portion 721 and the second connection portion 731 between the rear wall 12f) of the tub 12 and the first body portion 210 of the duct 200. Accordingly, the space between the rear wall 12f) of the tub 12 and the first body portion 210 of the duct 200 may be designed to be as small as possible.

FIG. 25 is a view illustrating a state before a first frame and a second frame of a duct are coupled to each other according to one embodiment. FIG. 26 is a view illustrating a process in which the first frame and the second frame of the duct shown in FIG. 25 are coupled to each other. FIG. 27 is a view illustrating a state in which the first frame and the second frame of the duct shown in FIG. 26 are coupled to each other.

Referring to FIGS. 25 to 27, the first frame 700 may include a corner portion 700d) provided between the first body portion 700a and the second body portion 700b. The second frame 800 may include a corner portion 800d) provided between the first body portion 800a and the second body portion 800b.

For example, referring to FIG. 25, the first frame 700 and the second frame 800 may be aligned with each other. For example, the corner portion 700d) of the first frame 700 and the corner portion 800d) of the second frame 800 may be aligned with each other.

For example, the second frame 800 may be arranged above the first frame 700. For example, the second frame 800 may be arranged in front of the first frame 700. For example, the first body portion 800a may be arranged in front of the first body portion 700a. For example, the second body portion 800b may be arranged above the second body portion 800a).

For example, referring to FIG. 26, the corner portion 700d) of the first frame 700 and the corner portion 800d) of the second frame 800 may be pre-assembled first.

After the corner portion 700d) and the corner portion 800d) are pre-assembled, the first body portion 700a of the first frame 700 and the first body portion 800a of the second frame 800 may be assembled to each other. For example, the first body portion 800a of the second frame 800 may be separably coupled to the front side of the first body portion 700a of the first frame 700.

After the corner portion 700d) and the corner portion 800d) are pre-assembled, the second body portion 700b of the first frame 700 and the second body portion 800b of the second frame 800 may be assembled to each other. For example, the second body portion 800b of the second frame 800 may be separably coupled to the upper side of the second body portion 700a of the first frame 700.

For example, after the first body portion 700a and the first body portion 800a are assembled, the second body portion 700b and the second body portion 800b may be assembled. Conversely, for example, after the second body portion 700b and the second body portion 800b are assembled, the first body portion 700a and the first body portion 800a may be assembled.

For example, referring to FIG. 27, the first frame 700 and the second frame 800 may be coupled to each other. The plurality of first coupling members 711 of the first frame 700 may be coupled to the plurality of second coupling members 811 of the second frame 800. The plurality of first coupling members 711 of the first frame 700 may be hook-coupled to the plurality of second coupling members 811 of the second frame 800. The duct 200 may be formed by assembling the first frame 700 and the second frame 800.

Although a few embodiments of the disclosure have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

	Number	Date	Country
Parent	PCT/KR2023/008375	Jun 2023	WO
Child	18918322		US

Information

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Date Filed

Date Published

Inventors

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CPC

International Classifications

Abstract

Description

Claims

Priority Claims (1)

CROSS-REFERENCE TO RELATED APPLICATIONS

Continuations (1)