WET MOP MODULE OF CLEANER

Abstract
The present disclosure relates to a wet duster module of a cleaner and relates to a wet duster module of a cleaner, which includes a diffuser having an inlet connected to a heat generator and an outlet disposed adjacent to a duster, wherein the diffuser includes a diffuser connection pipe formed at the inlet and connected to the heat generator and a diffuser nozzle formed at the outlet and disposed outward in a radial direction of a rotational cleaning part, and thus steam at the same temperature uniformly reaches a wide region of the duster.
Description
TECHNICAL FIELD

The present disclosure relates to a cleaner, and more specifically, to a wet duster module of a cleaner, which suctions or wipes dust or foreign substances in a region to be cleaned by spraying steam or water on a duster.


BACKGROUND ART

A cleaner is a device for performing cleaning by suctioning or sweeping dust or a foreign substance in a region to be cleaned.


The cleaner may be classified into a manual cleaner for allowing a user to directly perform cleaning while moving the cleaner, and an automatic cleaner for performing cleaning while traveling by itself.


In addition, depending on the type of the cleaner, the manual cleaner may be classified into a canister-type vacuum cleaner, an upright vacuum cleaner, a hand vacuum cleaner, a stick-type vacuum cleaner, etc.


The cleaner may clean the floor using a cleaner head or module. Typically, the cleaner head or module may be used to suction air and dust. In this case, depending on the type of the head or the module, a duster is attached to clean the floor using the duster.


In addition, the cleaner may clean the floor by allowing the duster to discharge water and using the duster absorbing the water.


However, when a foreign substance are stuck to the floor, even when the cleaner mops the floor while rotating the duster absorbing water, the foreign substance may still remain.


In addition, when microorganisms, etc., have grown on the floor, there is a limitation in that even when the cleaner mops the floor while rotating the duster absorbing the water, the microorganisms may not be completely sterilized.


To solve such a problem, a method of heating water through a heater and supplying hot water or steam to a duster may be considered.


As Patent Document 1, U.S. Pat. No. 9,420,933 is presented. Patent Document 1 relates to a heater used in a steam mop cleaner.


The steam mop cleaner has a configuration that receives water from a water tank, generates steam through a steam generator, and then supplies the steam to a cleaning pad.


The steam generator here generates the steam by heating water through a heater in a state of storing the water, diffuses the generated steam through a channel formed in a steam frame, and supplies the steam to the cleaning pad.


However, most steam is sprayed to only a region near a steam outlet, and even when the channel spreads the steam, the amount of steam is small or the steam is cooled in regions far from the steam outlet, and thus there is a problem that cleaning performance in the regions far from the steam outlet is degraded.


As Patent Document 2, Korean Patent No. 1609444 is presented. Patent document 2 relates to a water cleaner provided with a steam generating means.


In the case of Patent Document 2, a water tank and a heater are disposed in a vacuum cleaner main body rather than a base member. The steam generated from the heater flows into a moving pipe body, and the steam flowing through a non-rotating moving pipe body flows into a rotating rotational plate and is supplied to a mop. This is intended to prevent the heat generated from the heater from reaching other parts inside the base member, such as a mop motor, and causing thermal damage.


However, in the case of Patent Document 2, a tube through which steam flows is inevitably disposed between the heater and the mop, and there is a problem that while the steam flows through the tube, a temperature of the steam drops or the heat of the steam is discharged to the outside, thereby causing damage to other parts.


In addition, sealing between the moving pipe body and the rotational plate is very important, and when there is a clearance between the moving pipe body and the rotational plate, there is a problem that steam permeates the cleaner, thereby causing damage to electronic components, motors, etc.


DISCLOSURE
Technical Problem

To solve the above problems of the conventional cleaner, the present disclosure is directed to providing a wet duster module of a cleaner, which increases sterilization and foreign substance removal effects by supplying hot water or steam to a duster.


The present disclosure is also directed to providing a wet duster module of a cleaner, which prevents heat loss and prevents heat generated from steam from reaching other parts by making a distance between a heat generator and a duster as close as possible.


The present disclosure is also directed to providing a wet duster module of a cleaner, which uniformly gives cleaning ability to all regions of a duster by uniformly supplying hot water or steam to the duster.


The present disclosure is also directed to providing a wet duster module of a cleaner, which blocks heat generated from a heat generator from reaching other parts.


The present disclosure is also directed to providing a wet duster module of a cleaner, which can maintain the amount of supplied water or steam by maintaining a flow direction of moisture even when a heat generator is shaken during cleaning.


Technical Solution

To achieve the objects, a cleaner according to the present disclosure includes a cleaner main body and a wet duster module connected to the cleaner main body and mopping and cleaning a foreign substance on a floor. The wet duster module of the cleaner includes a module housing coupled to a cleaner main body, forming an appearance, and forming a space therein, a water tank coupled to the module housing and storing water therein, at least one rotational cleaning part disposed at the bottom of the module housing and coupled to a duster, a heat generator configured to heat water supplied from the water tank, and a diffuser connected to the heat generator to supply the heated moisture to the duster. The diffuser is disposed at the bottom of the module housing, and disposed outward in a radial direction of the rotational cleaning part.


The diffuser may extend in a circumferential direction of the rotational cleaning part. In this case, the diffuser may extend along a virtual circle, and a center of the circle may be disposed on a rotational axis of the rotational cleaning part. According to a first embodiment of the present disclosure, the diffuser may be formed in an arc shape. In this case, the diffuser may be disposed inside the rotational axis of the duster. According to a second embodiment of the present disclosure, the diffuser may be formed in a ring shape.


Assuming a virtual reference line passing through the module housing, a plurality of the rotational cleaning parts may be disposed symmetrically with respect to the reference line, and the diffusers may be disposed symmetrically with respect to the reference line.


The diffuser may further include a drain hole through which condensed condensate is discharged. In this case, the diffuser may include a diffuser nozzle configured to discharge the heated moisture toward the duster, and a distance from the rotational axis of the rotational cleaning part to the diffuser nozzle may be greater than a distance from the rotational axis of the rotational cleaning part to the drain hole.


The diffuser may be disposed above the duster to discharge the heated moisture to an upper surface of the duster.


The module housing may include a suction port disposed at one side thereof to suction air, and the diffuser may be disposed behind the suction port.


The module housing may include a diffuser installation groove which is formed to be recessed upward from a lower surface, and into which at least a portion of the diffuser is inserted.


The module housing may include a diffuser installation groove which is formed to be recessed upward from a lower surface, and into which at least a portion of the diffuser is inserted.


An inner end of the diffuser may be disposed to be spaced apart from an outer end of the rotational cleaning part.


The module housing may include a partition wall configured to partition a duster driving motor configured to rotate the rotational cleaning part and the heat generator, and the diffuser may be disposed closer to the heat generator than the duster driving motor with respect to the partition wall.


To achieve the objects, a cleaner according to the present disclosure includes a cleaner main body and a wet duster module connected to the cleaner main body and mopping and cleaning a foreign substance on a floor. The wet duster module of the cleaner includes a module housing coupled to a cleaner main body, forming an appearance, and forming an internal space therein, a partition wall extending from one side of the module housing to the internal space and partitioning the internal space into a first internal space and a second internal space surrounding the first internal space, a water tank coupled to the module housing and storing water therein, a duster disposed on a lower surface of the module housing, a heat generator disposed in the first internal space and heating water supplied from the water tank, and a diffuser disposed in the first internal space and connected to the heat generator to supply the heated moisture to the duster.


The duster may rotate about a rotational axis, and the rotational axis may be disposed in the second internal space.


The wet duster module of the cleaner may further include a duster driving motor disposed in the second internal space and rotating the duster.


The wet duster module of the cleaner may further include a water pump disposed in the second internal space and pumping the water stored in the water tank to the heat generator.


Advantageous Effects

As described above, according to the wet duster module of the cleaner according to the present disclosure, there are the following effects.


First, it is possible to increase the sterilization and foreign substance removal effects by supplying hot water or steam to the duster through the heat generator.


Second, since the diffuser is connected to the lower end of the heat generator and the duster is disposed under the diffuser, steam can flow to the duster by gravity even when there is no separate pump, thereby more efficiently using the power of the battery.


Third, since the diffuser is directly connected to the outlet of the heat generator and the duster is disposed close to the duster under the diffuser, the steam generated from the heat generator can directly reach the duster with the minimum moving distance, thereby minimizing heat loss, and the heat from the steam is not discharged, thereby preventing thermal damage to other parts.


Fourth, since the heat generator is uniformly diffused from the diffuser in the constant space and is discharged to the duster through the plurality of diffuser nozzles, the steam at the same temperature uniformly reaches the wide region of the duster.


Fifth, since the diffuser and the duster are disposed to be spaced the predetermined distance from each other, the steam sprayed from the diffuser is diffused and mixed, thereby uniformly reaching the wider region of the duster.





DESCRIPTION OF DRAWINGS


FIG. 1 is a perspective view of a cleaner according to the present disclosure.



FIG. 2 is a coupling perspective view for describing a wet duster module according to the present disclosure.



FIG. 3 is an exploded perspective view of FIG. 2.



FIG. 4 is a perspective view of a state of removing an upper housing from the wet duster module according to the present disclosure.



FIG. 5 is a bottom view of FIG. 4.



FIG. 6 is a plan view of FIG. 4.



FIG. 7 is a rear view of a rear surface of the wet duster module according to the present disclosure.



FIG. 8 is a cross-sectional view of the wet duster module according to the present disclosure.



FIG. 9 is a perspective view for describing a diffuser in a wet duster module according to a first embodiment of the present disclosure.



FIG. 10 is an exploded perspective view of the diffuser in the wet duster module according to the first embodiment of the present disclosure.



FIG. 11 is a bottom view of the wet duster module according to the first embodiment of the present disclosure, which is a view separately showing portions of a duster and a rotational plate.



FIG. 12 is a cross-sectional view along line 12-12 in FIG. 11.



FIG. 13 is a cross-sectional view along line 13-13 in FIG. 11.



FIG. 14 is a view for describing a flow of condensate or moisture in the wet duster module according to the first embodiment of the present disclosure.



FIG. 15 is a perspective view for describing a diffuser in a wet duster module according to a second embodiment of the present invention.



FIG. 16 is a bottom view of the wet duster module according to the second embodiment of the present disclosure, which is a view separately showing portions of a duster and a rotational plate.



FIG. 17 is a cross-sectional view along line 17-17 in FIG. 16.



FIG. 18 is a cross-sectional view along line 18-18 in FIG. 16.





MODE FOR INVENTION

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


Since the present disclosure may have various changes and various embodiments, specific embodiments are shown in the accompanying drawings and specifically described in the detail descriptions. This is not intended to limit the present disclosure to specific embodiments and should be construed to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.


In the description of the present disclosure, terms such as first and second may be used to describe various components, but the components may not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, a second component may be referred to as a first component, and similarly, the first component may also be referred to as the second component without departing from the scope of the present disclosure.


The term “and/or” includes a combination of a plurality of related listed items or any of the plurality of related listed items.


When a certain component is described as being “connected” or “coupled” to another component, it can be understood that the certain component may be directly connected or coupled to another component, but other components may be present therebetween. On the other hand, when the certain component is described as being “directly connected” or “directly coupled” to another component, it can be understood that other components are not present therebetween.


The terms used in the present application are only used to describe specific embodiments and are not intended to limit the present disclosure. The singular expression includes the plural expression unless the context clearly dictates otherwise.


In the present application, it can be understood that terms “include” or “have” are intended to specify that a feature, a number, a step, an operation, a component, a part, or a combination thereof described in the specification is present, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.


Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those skilled in the art to which the present disclosure pertains. The terms defined in a generally used dictionary can be construed as meanings that match with the meanings of the terms from the context of the related technology and are not construed as an ideal or excessively formal meaning unless clearly defined in the present application.


In addition, the following embodiments are provided to provide a more complete description to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for clearer description.



FIG. 1 is a perspective view of a cleaner according to one embodiment of the present disclosure, FIGS. 2 and 3 are a coupling perspective view and an exploded perspective view for describing a wet duster module according to one embodiment of the present disclosure, FIGS. 4 to 6 are views showing a state of removing an upper housing from the wet duster module according to one embodiment of the present disclosure, FIG. 7 is a rear view of a rear surface of the wet duster module according to one embodiment of the present disclosure, FIG. 8 is a cross-sectional view of the wet duster module according to one embodiment of the present disclosure, FIG. 9 is a perspective view for describing a diffuser in a wet duster module according to a first embodiment of the present disclosure, FIG. 10 is an exploded perspective view of the diffuser in the wet duster module according to the first embodiment of the present disclosure, FIG. 11 is a bottom view of the wet duster module according to the first embodiment of the present disclosure, which shows a state in which portions of a duster and a rotational plate are separated, FIG. 12 is a cross-sectional view along line 12-12 in FIG. 11, FIG. 13 is a cross-sectional view along line 13-13 in FIG. 11, and FIG. 14 shows a flow of condensate or moisture in the wet duster module according to the first embodiment of the present disclosure. In addition, FIG. 15 is a perspective view for describing a diffuser in a wet duster module according to a second embodiment of the present invention, FIG. 16 is a bottom view of the wet duster module according to the second embodiment of the present disclosure, which shows a state in which portions of a duster and a rotational plate are separated, FIG. 17 is a cross-sectional view along line 17-17 in FIG. 16, and FIG. 18 is a cross-sectional view along line 18-18 in FIG. 16.


In the present specification, it can be understood that “floor” means not only the floor of a living room or a room, but also a cleaning surface such as a carpet.


Referring to FIGS. 1 to 8, a cleaner 1 according to one embodiment of the present disclosure may include a cleaner main body 400 including a suction motor for generating a suction force, a wet duster module 100 connected to the cleaner main body 400 and suctioning air and a foreign substance on a floor and mopping and cleaning the floor, and an extension pipe 300 for connecting the cleaner main body 400 with the wet duster module 100.


The wet duster module 100 according to the embodiment of the present disclosure may include a module housing 110 and a connection pipe 180 movably connected to the module housing 110.


The wet duster module 100 of the present embodiment may be used by being connected to, for example, a hand cleaner or a canister-type cleaner.


That is, the wet duster module 100 may be detachably connected to the cleaner main body 400 or the extension pipe 300. Therefore, the user may clean the floor using the wet duster module 100 as the wet duster module 100 is connected to the cleaner main body 400 or the extension pipe 300. In this case, the cleaner main body 400 to which the wet duster module 100 is connected may separate dust in the air using a multi-cyclone method.


The wet duster module 100 may be operated by receiving power from the cleaner main body 400.


Since the cleaner main body 400 to which the wet duster module 100 is connected includes a suction motor (not shown), a suction force generated by the suction motor (not shown) acts on the wet duster module 100 to allow the wet duster module 100 to suction the foreign substance and air on the floor.


Therefore, in the present embodiment, the wet duster module 100 may serve to suction the foreign substance and air on the floor and guide the same to the cleaner main body 400.


The connection pipe 180 may be connected to a rear central portion of the module housing 110 to guide the suctioned air to the cleaner 1, but is not limited thereto.


Defining directions of the present embodiment to help understanding, a portion connected to the connection pipe 180 of the wet duster module 100 may be a rear (rear side) of the wet duster module 100, and a portion opposite to the connection pipe 180 may be a front (front side) of the wet duster mop module 100. In addition, a direction connecting the front and rear sides may be referred to as a front-to-rear direction.


In addition, based on viewing a suction port 113a from the connection pipe 180, a left side of a flow path formation part 113 can be referred to as a left side (left side) of the wet duster module 100, and a right side of the flow path formation part 113 can be referred to as a right side (right side) of the wet duster module 100. In addition, a direction connecting the left and right sides may be referred to as a left-to-right direction. The left-right direction may be a direction perpendicular to the front-to-rear direction on a horizontal plane.


In addition, based on a state in which the wet duster module 100 is placed on the floor, that is, a duster 150 may be placed on the floor to mop the floor, a direction approaching the floor can be referred to as downward or downward, and a direction far from the floor can be referred to as upward or upward.


The wet duster module 100 may further include a rotational cleaning part 140 rotatably provided at the bottom of the module housing 110.


As an example, a pair of the rotational cleaning parts 140 may be provided and arranged in the left-right direction. In this case, the pair of the rotational cleaning parts 140 may be rotated independently. As an example, the rotational cleaning part 140 may include a first rotational cleaning part 141 and a second rotational cleaning part 142.


The rotational cleaning part 140 may be coupled with the duster 150. The duster 150 may be, for example, formed in a disk shape. The duster 150 may include a first duster 151 and a second duster 152.


Since the duster 150 is in close contact with the floor by a load of the wet duster module 100 in a state of being placed on the floor, a frictional force between the duster 150 and the floor is increased.


The module housing 110 is coupled to the cleaner main body 400, forms the appearance, and forms a space therein.


The module housing 110 may form the appearance of the wet duster module 100 and have the suction port 113a for suctioning air formed therein. For example, the suction port 113a may be formed on a front end portion of a lower surface of the module housing 110. The suction port 113a may be formed to extend from the module housing 110 in the left-right direction.


The module housing 110 may include a lower housing 111 and an upper housing 112 coupled to a top of the lower housing 111.


The lower housing 111 may be provided with the rotational cleaning part 140 and may form the appearance of the wet duster module 100.


The lower housing 111 may include a bottom surface 111a to which the rotational cleaning part 140 is coupled. In this case, the lower surface of the bottom surface 111a may be disposed to face the floor in a state in which the wet duster module 100 is placed on the floor, and an upper surface of the bottom surface 111a may be provided with a moisture supply part 130, a heat generator 200, and a duster driving motor 170.


The suction port 113a may be formed in the lower housing 111. Specifically, the suction port 113a may be formed in the bottom surface 111a of the lower housing 111. The suction port 113a refers to a space into which air containing dust may flow. With this configuration, when the suction motor (not shown) of the cleaner main body 400 operates, dust and air that are present near the floor may be suctioned into a flow path of the wet duster module 100 through the suction port 113a.


The lower housing 111 may be provided with a board installation part on which a printed circuit board 190 for controlling the duster driving motor 170 is installed. For example, the substrate installation part may be formed in a hook shape extending upward from the lower housing 111.


Although not limited, the substrate installation part may be located at one side of the flow path formation part 113 in the lower housing 111. For example, the printed circuit board 190 may be disposed at locations adjacent to a first manipulation part 191 and a second manipulation part 192. Therefore, a switch installed on the printed circuit board 190 may detect the operation of the first manipulation part 191 and the second manipulation part 192.


A nozzle hole (not shown) through which a diffuser 137 passes may be formed in the lower housing 111. Water or steam (vapor) passing through the heat generator 200 and the diffuser 137 through the nozzle hole (not shown) may be supplied to the duster 150.


Meanwhile, the lower housing 111 may be provided with a light emitting module 160. Specifically, the light emitting module 160 may be provided on a front surface of the lower housing 111.


The upper housing 112 may cover the top of the lower housing 111 and form the appearance of the wet duster module 100 of the present disclosure.


In addition, the module housing 110 may further include the flow path formation part 113 communicating with the suction port 113a to form a flow path that guides air introduced from the suction port 113a to the cleaner main body 400.


The flow path formation part 113 may be coupled to an upper central portion of the lower housing 111 and may have an end portion connected to the connection pipe 180. Therefore, since the suction port 113a may extend substantially linearly in the front-rear direction by arranging the flow path formation part 113, it is possible to minimize a length of the suction port 113a, thereby minimizing a flow path loss in the wet duster module 100.


A front portion of the flow path formation part 113 may cover the top of the suction port 113a. The flow path formation part 113 may be disposed to be inclined upward from a front end portion toward the rear side thereof. That is, a top surface of the flow path formation part 113 may be inclined at a predetermined angle with the floor. In addition, the top surface of the flow path formation part 113 may be inclined at a predetermined angle with the bottom surface 111a of the lower housing 111.


Therefore, a height of the front portion of the flow path formation part 113 may be formed to be lower than that of a rear portion thereof.


According to the present embodiment, since the height of the front portion of the flow path formation part 113 is low, there is an advantage in that the height of the front portion of the total height of the wet duster module 100 can be reduced. The lower the height of the wet duster module 100, the higher the possibility that it may enter and clean a narrow space under furniture or a chair.


Meanwhile, in the present embodiment, the heat generator 200 may be disposed above the flow path formation part 113. With this configuration, the heat generator 200 can be stably supported in a state of being disposed at a predetermined angle with the floor.


The module housing includes a diffuser installation groove 111b. The diffuser installation groove 111b is a space in which the diffuser 138 is installed.


The diffuser installation groove 111b is formed in the module housing 110. Specifically, the diffuser installation groove 111b is formed in the lower housing 111.


The diffuser installation groove 111b is formed by being recessed upward from the lower surface of the lower housing 111.


The diffuser 138 is inserted while moving upward from the lower portion of the lower housing 111.


The module housing 110 includes a partition wall 1112. The partition 1112 is a component disposed on the perimeter of the heat generator 200 to block heat emitted from the heat generator 200 from being discharged to the outside.


The partition wall 1112 partitions the internal space of the module housing 110. A space formed inside the partition wall 1112 is defined as a first internal space S1, and a space formed outside the partition wall 1112 is defined as a second internal space S2.


A blocker 114 is disposed at the bottom of the lower housing 111 (lower surface of the bottom surface 111a). The blocker 114 can block the moisture discharged from the duster 150 from being diffused to the suction port 113a by shielding a front space in which the suction port 113a is disposed and a rear space in which the duster 150 is disposed. For example, the blocker 114 may include a central portion 114a and an extension portion 114b. In this case, a pair of extension portions 114b may be symmetrically connected to both end portions of the central part 114a. In addition, the central portion 114a may be disposed behind the suction port 113a to block moisture from flowing toward the suction port 113a. In addition, the extension portion 114b may be provided in an arc shape to surround the circular duster 150.


A plurality of rollers for smooth movement of the wet duster module 100 may be provided under the bottom surface 111a of the lower housing 111.


For example, a front roller 115 may be located in front of the duster 150 in the lower housing 111. The front roller 115 may include a first roller 115a and a second roller 115b. The first roller 115a and the second roller 115b may be disposed to be spaced apart from each other in the left-right direction.


The first roller 115a and the second roller 115b may each be rotatably connected to a shaft. The shaft may be fixed to the bottom of the lower housing 111 in a state of being disposed to extend in the left-right direction.


A distance between the shaft and a front end portion of the lower housing 111 is greater than a minimum distance between the duster 150 and the front end portion of the lower housing 111.


For example, at least a portion of the rotational cleaning part 140 may be located between the shaft of the first roller 115a and the shaft of the second roller 115b.


According to such an arrangement, the rotational cleaning part 140 may be located as close to the suction inlet 113a as possible, and an area cleaned by the rotational cleaning part 140 of the floor in which the wet duster module 100 is located may be increased, thereby improving floor cleaning performance.


In the case of the present embodiment, the first roller 115a and the second roller 115b may be coupled to the bottom of the lower housing 111, thereby improving the mobility of the wet duster module 100.


The lower housing 111 may be further provided with a third roller 116. Therefore, the first roller 115a and the second roller 115b together with the third roller 116 may support the wet duster module 100 at three points. In this case, the third roller 116 may be located behind the duster 150 so as not to interfere with the duster 150.


A cooling air inlet 117 may be formed in the lower housing 111. External air may flow into the module housing 110 through the cooling air inlet 117. In addition, the cooling air inlet 117 may be formed on a front sidewall of the lower housing 111. With this configuration, when the wet duster module 100 is moved forward by a user's manipulation, the amount of introduced air may be increased.


A cooling air outlet 118 may be formed in the upper housing 112. The air inside the module housing 110 may be discharged to the outside through the cooling air outlet 118. In addition, the cooling air outlet 118 may be formed on both side walls of the upper housing 112. With this configuration, there is an advantage in that the air introduced through the cooling air inlet 117 can be guided to pass through the duster driving motor 170 in the process of flowing to the cooling air outlet 118, and overheating of the mop driving motor 170 can be prevented.


In addition, based on a state in which the lower housing 111 is placed on the floor, the cooling air outlet 118 may be disposed farther from the ground than the cooling air inlet 117. With this configuration, heated air may rise inside the module housing 110 and may be effectively discharged through the cooling air outlet 118.


The wet duster module 100 may further include a water tank 120 to supply moisture to the duster 150.


The water tank 120 is coupled to the module housing 110 to store water therein.


The water tank 120 may be detachably connected to the module housing 110. Specifically, the water tank 120 may be coupled to the top of the upper housing 112. For example, the water tank 120 may be mounted on a water tank seating part formed on a top surface of the upper housing 112.


In addition, the water tank 120 may be disposed above the heat generator 200.


Specifically, the water tank 120 is disposed to be spaced apart from the heat generator 200 above the heat generator 200. That is, the water tank 120 may be disposed above the heat generator 200 with the upper housing 112 interposed therebetween.


In a state in which the water tank 120 is mounted on the module housing 110, the water tank 120 may form the appearance of the wet duster module 100.


Substantially, the entire upper wall of the water tank 120 may form the appearance of an upper surface of the wet duster module 100. Therefore, the user may visually check whether the water tank 120 has been mounted on the module housing 110.


The module housing 110 may further include a water tank separation button operated to separate the water tank 120 in the state in which the water tank 120 is mounted on the module housing 110. For example, the water tank separation button may be located on a central portion of the wet duster module 100. Therefore, there is an advantage in that the user may easily recognize the water tank separation button and manipulate the water tank separation button.


In the state in which the water tank 120 is mounted on the module housing 110, water in the water tank 120 may be supplied to the duster 150. Specifically, the water stored in the water tank 120 may be supplied to the duster 150 through the moisture supply part 130.


Specifically, a space capable of storing water is formed inside the water tank 120. The water stored in the water tank 120 may be supplied to the heat generator 200 through at least one pipe (hose). The water flowing into the heat generator 200 may be heated and may also be phase-converted into steam (vapor) according to the user's selection. The water or steam (hereinafter referred to as “moisture”) heated by the heat generator 200 may be supplied to the duster 150 through the diffuser 137.


The water tank 120 includes a water supply port. The water supply port is a hole through which water flows into the water tank 120. For example, the water supply port may be formed on a side surface of the water tank 120.


The water tank 120 includes a drainage port. The drainage port is a hole through which the water stored in the water tank 120 is discharged. Water discharged from the drainage port may flow into the heat generator 200. The drainage port may be formed on a lower surface of the water tank 120.


The water tank 120 includes an air hole. The air hole is a hole through which air may flow into the water tank 120. When the water stored inside the water tank 120 is discharged to the outside, a pressure inside the water tank 120 decreases, and air may flow into the water tank 120 through the air hole to compensate the decreased pressure. For example, the air hole may be formed at an upper end of the water tank 120.


The wet duster module 100 of the present disclosure may include the moisture supply part 130 in which a flow path through which the water introduced from the water tank 120 is supplied to the duster 150 is formed.


Specifically, the moisture supply part 130 may include a water tank connection part 131 for introducing the water in the water tank 120 into the module housing 110, a water introduction pipe 132 for supplying water introduced into the water tank connection part 131 to a water pump 133, a guide pipe 134 for supplying water of the water pump 133 to a T-shaped connector, and a water supply pipe 135 for supplying water introduced into the connector to the heat generator 200.


The water tank connection part 131 may operate a valve (not shown) in the water tank 120 and allow water to flow therethrough.


The water tank connection part 131 may be coupled to the bottom of the upper housing 112 and may have a portion passing through the upper housing 112 and protruding upward.


When the water tank 120 is seated in the upper housing 112, the water tank connection part 131 protruding upward may pass through the outlet of the water tank 120 and may be inserted into the water tank 120.


The upper housing 112 may be provided with a sealer for preventing water discharged from the water tank 120 from leaking near the water tank connection part 131. The sealer may be, for example, made of a rubber material and coupled to the upper housing 112 at the top of the upper housing 112.


The water pump 133 for controlling the discharge of water from the water tank 120 may be installed in the upper housing 112.


The water pump 133 may provide a flow force of water. The water pump 133 may include a first connection port to which the water introduction pipe 132 is connected and a second connection port to which the guide pipe 134 is connected. In this case, based on the water pump 133, the first connection port may be an inlet, and the second connection port may be an outlet.


The water pump 133 is a pump that expands or shrinks while an internal valve body operates to allow the first connection port to communicate with the second connection port and may be implemented by known structures, and thus detailed description thereof will be omitted.


The water supply pipe 135 may connect the connector with a water introduction port 212 of the heat generator 200. For example, the water supply pipe 135 may be a pair of pipes branched from the connector.


Therefore, the water supplied to the water introduction pipe 132 flows into the water pump 133 and then flows to the guide pipe 134. The water flowing to the guide pipe 134 flows to the water supply pipe 135 by the connector. In addition, the water flowing to the water supply pipe 135 is supplied to the heat generator 200.


The heat generator 200 is a device for heating water. The heat generator 200 is disposed inside the module housing 110. Specifically, the heat generator 200 is installed on the upper surface of the lower housing 111.


Meanwhile, in the present disclosure, the heat generator 200 is disposed to be inclined. Specifically, based on a state in which the module housing 110 is placed on the floor, the bottom surface of the heat generator 200 may be disposed to form a predetermined angle a with the floor.


The specific structure and effects of the heat generator 200 of the present disclosure will be described below.


The diffusers 137 and 138 are configured to discharge water or moisture in the water tank 120 to the duster 150.


The diffusers 137 and 138 have inlets connected to the heat generator 200 and outlets disposed adjacent to the duster 150.


The diffusers 137 and 138 are disposed outside in a radial direction of the rotational cleaning part 140. Steam sprayed from the diffusers 137 and 138 reaches the duster 150. As the duster 150 rotates, the duster 150 tends to move outward in the radial direction due to a centrifugal force. Therefore, since the heat of the steam does not spread to the rotational cleaning part 140 disposed therein in the radial directions of the diffusers 137 and 138, the rotational cleaning part 140 or an assembly for driving the rotational cleaning part 140 is not damaged by heat.


The diffusers 137 and 138 extend in the circumferential direction of the rotational cleaning part 140. Referring to FIG. 10, the diffusers 137 and 138 according to the first embodiment extend in the circumferential direction of the rotational cleaning part 140 and are formed in an arc-shape. Referring to FIG. 15, the diffusers 137 and 138 according to the second embodiment extend in the circumferential direction of the rotational cleaning part 140 and are formed in a ring shape.


The steam sprayed from the diffusers 137 and 138 is moistened in a circumferential direction at a location that is a predetermined distance away from the center of the duster 150. As described above, the steam moistened in the duster 150 is moved outward in the radial direction by a centrifugal force to uniformly moisten the outside of the duster 150 and is not moved inward in the radial direction by the centrifugal force, thereby preventing overheating of the rotational cleaning part 140.


The diffusers 137 and 138 extend along a virtual circle, and the center of the circle is disposed on a rotational axis of the rotational cleaning part 140. With this arrangement, a portion of the duster 150 outward in the radial directions of the diffusers 137 and 138 may be moistened by steam, and the steam can be prevented from being diffused to the duster 150 inward in the radial directions of the diffusers 137 and 138.


A virtual reference line L1 passing through the module housing 110 is assumed. In this case, a plurality of rotational cleaning parts 140 are disposed symmetrically with respect to the reference line L1, and the diffusers 137 and 138 are disposed symmetrically with respect to the reference line L1.


Referring to FIG. 11 as an example, the virtual reference line L1 extends in a front-rear direction with respect to the center of the module housing 110. The two rotational cleaning parts 140 may be disposed symmetrically in the left-right direction with respect to the reference line L1, and the two diffusers 137 and 138 may be disposed symmetrically in the left-right direction with respect to the reference line L1.


The diffusers 137 and 138 are disposed above the duster 150. Therefore, the steam is moved down by gravity and supplied to the duster 150. Therefore, since there is no need for a separate device for pressurizing and spraying steam, the structure can be simplified.


The module housing 110 may include the suction port disposed at one side thereof and suctioning air, and the diffusers 137 and 138 may be disposed behind the suction port. In general, since the cleaner performs cleaning while moving forward, when the diffusers 137 and 138 for spraying steam are disposed behind the suction port, it is possible to prevent steam from being diffused to the suction port and suctioned into the suction port. Therefore, it is possible to prevent the heat of the steam from flowing into the cleaner main body.


The module housing 110 includes the diffuser installation groove 111b which is formed to be recessed upward in the lower surface thereof and into which at least portions of the diffusers 137 and 138 are inserted. Referring to FIGS. 13, 17, and 18, the diffuser installation groove 111b is formed on the lower surface of the module housing 110, and the diffusers 137 and 138 are inserted into the diffuser installation groove 111b. In this case, steam leaking through gaps between diffuser bodies 1371 and 1381 and diffuser caps 1372 and 1382 does not permeate other places due to the diffuser installation groove 111b, and may be directly guided to the duster 150.


Portions of the diffusers 137 and 138 may be inserted into the diffuser installation groove 111b, and the remainders of the diffusers 137 and 138 may be disposed to protrude downward from the module housing.


Lower ends of the diffusers 137 and 138 are disposed to be spaced apart from the upper surface of the duster 150. With this arrangement, the steam discharged from diffuser nozzles 1374 and 1384 may be mixed with air, and steam at different temperatures sprayed from the plurality of diffuser nozzles 1374 and 1384 may be mixed, thereby making steam at a uniform temperature reach the duster 150. In addition, by removing friction between the diffusers 137 and 138 and the duster 150, the duster 150 may be rotated better.


Inner ends of the diffusers 137 and 138 are disposed to be spaced apart from an outer end of the rotational cleaning part 140. With this arrangement, even when steam is present inside the diffusers 137 and 138 and the temperature of the diffusers 137 and 138 rises, the heat of the diffusers 137 and 138 may reach the rotational cleaning part 140, thereby preventing the overheating of the rotational cleaning part 140.


The module housing 110 includes the partition wall 1112 for partitioning the duster driving motor 170 for rotating the rotational cleaning part 140 and the heat generator 200, and the diffusers 137 and 138 are disposed closer to the heat generator 200 than the duster driving motor 170 with respect to the partition wall 1112. That is, referring to FIG. 12, 13 or 17, the heat generator 200 and the diffusers 137 and 138 are disposed in the first internal space S1 inside the partition wall 1112, and the duster driving motor 170 is disposed in the second internal space S2 outside the partition wall 1112. With this arrangement, the heat generated from the heat generator 200 or the diffusers 137 and 138 does not reach the duster driving motor 170, thereby increasing the lifetime of the duster driving motor 170.


As described above, the partition wall 1112 partitions the internal space of the module housing 110 into the first internal space S1 and the second internal space S2. In this case, the heat generator 200 and the diffusers 137 and 138 are disposed in the first internal space S1. Therefore, the heat generated from the heat generator 200 or the diffusers 137 and 138 does not reach other components disposed in the second internal space S2. This can prevent failure of other components caused by heat.


The duster 150 rotates about a rotational axis, and the rotational axis is disposed in the second internal space S2. With this arrangement, it is possible to prevent damage to a driving assembly, such as a gear for rotating the duster 150, caused by the heat generated from the diffusers 137 and 138.


The duster driving motor 170 for rotating the duster 150 is disposed in the second internal space S2. With this arrangement, it is possible to prevent damage to the duster driving motor 170 caused by the heat generated from the diffusers 137 and 138.


The water pump for pumping the water stored inside the water tank to the heat generator 200 is disposed in the second internal space S2. With this arrangement, it is possible to prevent damage to the water pump caused by the heat generated from the diffusers 137 and 138.


The diffusers 137 and 138 include the diffuser 137 according to the first embodiment or the diffuser 138 according to the second embodiment. Hereinafter, the diffuser 137 according to the first embodiment will first be described, and then the diffuser 138 according to the second embodiment will be described focusing on differences from that of the first embodiment.


Referring to FIGS. 9 and 10, the diffuser 137 according to the first embodiment includes the body 1371, the cap 1372, a connection pipe 1373, a nozzle 1374, a drain hole 1375, and a guide rib 1376.


The diffuser body 1371 has a diffusion flow path through which moisture may flow therein and includes a nozzle through which moisture flowing through the diffusion flow path is discharged to the duster 150. The diffuser body 1371 may be formed in a cylindrical shape with an open upper surface. The diffuser cap 1372 is disposed on the upper surface of the diffuser body 1371.


The diffuser body 1371 is formed in an arc-shape.


The diffuser cap 1372 covers the open upper surface of the diffuser body 1371.


Therefore, a flow path through which steam may flow is formed in the internal space of the diffuser 137.


The diffuser connection pipe 1373 is an inlet of the diffuser 137 and has steam flowing therein.


The diffuser connection pipe 1373 is connected to the heat generator 200.


The diffuser connection pipe 1373 is formed to protrude upward from the diffuser cap 1372. Specifically, referring to FIG. 10, the diffuser connection pipe 1373 may protrude upward from the diffuser cap 1372 in a vertical direction.


An upper end of the diffuser connection pipe 1373 is coupled to an outlet end of the heat generator 200.


The diffuser nozzle 1374 is an outlet of the diffuser 137 and allows steam to be sprayed to the duster 150.


The diffuser nozzle 1374 is formed at one side of the diffuser body 1371.


The diffuser nozzle 1374 may be formed in a hole shape in the diffuser body 1371.


The diffuser nozzle 1374 is formed on a lower surface of the diffuser body 1371 to allow steam to be discharged downward from the diffuser body 1371 by gravity.


A plurality of diffuser nozzles 1374 may be formed. Referring to FIG. 11, three diffuser nozzles 1374 may be formed, and defined as a first diffuser nozzle 1374a to a third diffuser nozzle 1374c in the order of proximity to the diffuser connection pipe 1373.


A diameter of the first diffuser nozzle 1374a may be smaller than a diameter of the third diffuser nozzle 1374c.


The diffuser drain hole 1375 is a component of discharging condensate.


The diffuser drain hole 1375 is an outlet of the diffuser 137 and allows the condensate to be discharged to the duster 150.


A protrusion protrudes in a direction intersecting an extension direction of the diffuser body 1371. Referring to FIG. 10, the protrusion may protrude inward in the radial direction. The diffuser drain hole 1375 may be formed in the protrusion.


The diffuser drain hole 1375 is formed at one side of the diffuser body 1371.


The diffuser drain hole 1375 is formed in a hole shape in the diffuser body 1371.


The diffuser drain hole 1375 may be formed in the lower surface of the diffuser body 1371 to allow condensate to be discharged downward from the diffuser body 1371 by gravity.


A distance from the rotational axis of the rotational cleaning part 140 to the diffuser nozzle 1374 is greater than a distance from the rotational axis of the rotational cleaning part 140 to the drain hole. With this arrangement, insulation between the diffuser 137 and the rotational cleaning part 140 can be further reinforced. That is, since the condensate is supplied to the duster 150 between the diffuser nozzle 1374 and the rotational cleaning part 140 and the condensate is diffused outward in the radial direction by a centrifugal force, it is possible to block the steam present outside the condensate from being diffused to the rotational cleaning part 140.


Meanwhile, a guide rib 1376 may be formed at the bottom of the diffuser body 1371. The guide rib 1376 may be formed to protrude and extend downward from an edge of a bottom surface of the diffuser body 1371.


The guide rib 1376 may be formed in the circumferential direction. The guide rib 1376 may be formed in the circumferential direction with respect to a predetermined origin. For example, as shown in FIG. 10, the guide rib 1376 may be formed in the circumferential direction using the rotational center of the rotational cleaning part 140 as the origin.


With this configuration, the guide rib 1376 can block the moisture discharged from the diffuser nozzle 1374 from being discharged outward or inward in the radial direction and guide the moisture to the duster 150.


The diffuser 137 may be disposed inside the rotational axis of the duster 150. Referring to FIG. 10, the diffuser 137 is disposed inside a virtual linear line that passes through the rotational axis of the duster 150 and extends in the front-rear direction. The duster 150 according to the present disclosure has a slope having a relatively high inner end and a relatively low outer end. Therefore, the steam moistened at the inner end of the duster 150 may be diffused outward in the radial direction of the duster 150 while the duster 150 rotates, and when the steam reaches the outer end of the duster 150 due to the rotation of the duster 150, the steam is diffused to a wider region by a centrifugal force, it is possible to more effectively enable steam cleaning.


The diffuser 138 according to the second embodiment is formed in a ring shape unlike the diffuser 137 according to the first embodiment. The diffuser 138 according to the second embodiment may be used as long as it does not conflict with the diffuser 137 according to the first embodiment.


The diffuser 138 according to the second embodiment includes the body 1381, the cap 1382, a connection pipe 1383, and the nozzle 1384.


The diffuser body 1381 is formed in a ring or donut shape.


Referring to FIG. 15, a diffusion flow path through which moisture may flow may be formed in only a portion of the diffuser body 1381. Alternatively, the diffusion flow path may be formed in a ring shape in the entirety of the diffuser body 1381.


The diffuser cap 1382 is disposed on an upper surface of the diffuser body 1381.


The diffuser cap 1382 covers the open upper surface of the diffuser body 1381. Therefore, a flow path through which steam may flow is formed in an internal space of the diffuser 138.


The diffuser connection pipe 1383 is connected to the heat generator 200.


The diffuser connection pipe 1383 is formed to protrude upward from the diffuser cap 1382.


The diffuser connection pipe 1383 according to the second embodiment may be disposed obliquely rather than perpendicular to the ground. Referring to FIG. 16, the diffuser connection pipe 1383 may be disposed to be inclined rearward and downward. With this arrangement, the steam flowing into the internal space of the diffuser 138 may flow to the rear of the diffuser 138 more quickly, and steam at substantially the same temperature may be discharged to a first diffuser nozzle 1384a and a fourth diffuser nozzle 1384d.


The diffuser nozzle 1384 is formed at one side of the diffuser body 1381.


A plurality of diffuser nozzles 1384 may be disposed. Referring to FIG. 16 as an example, about four diffuser nozzles 1384 may be formed. In this case, the first diffuser nozzle 1384a to the fourth diffuser nozzle 1384d are defined in the order close to the diffuser connection pipe 1383.


The rotational cleaning part 140 may be rotated by receiving power from the duster driving motor 170. For example, the rotational cleaning part 140 may be a rotational plate. The rotational cleaning part 140 may be formed in a disk shape and may have the lower surface attached to the duster 150.


The rotational cleaning part 140 is disposed at the bottom of the module housing 110 and coupled to the duster 150.


In this case, the disk-shaped rotational cleaning part 140 may be disposed parallel to the floor in a state in which the wet duster module 100 is placed on the floor. Alternatively, the disk-shaped rotational cleaning part 140 may be disposed parallel to the bottom surface 111a of the lower housing 111.


For example, the rotational cleaning part 140 may be located behind the suction port 113a at the bottom of the module housing 110.


Therefore, when performing cleaning by moving the wet duster module 100 forward, a foreign substance and air on the floor may be suctioned by the suction port 113a, and then the floor may be mopped by the duster 150.


At least one rotational cleaning part 140 may be provided at the bottom of the module housing 110. For example, the rotational cleaning part 140 may include the first rotational cleaning part 141 connected to a first duster driving motor 171 and attached to the first duster 151, and the second rotational cleaning part 142 connected to a second duster driving motor 172 and attached to the second duster 152.


Specifically, the rotational cleaning part 140 may include an outer body in a circular ring shape, an inner body located in a central region of the outer body and spaced apart from an inner perimetric surface of the outer body, and a plurality of connection ribs for connecting an outer circumferential surface of the inner body and the inner perimetric surface of the outer body.


In addition, the rotational cleaning part 140 may include a plurality of water through holes formed in the circumferential direction to supply water discharged through the diffuser 137 to the duster 150.


Meanwhile, the rotational cleaning part 140 may include an attachment part for attaching the duster 150. For example, the attachment part may be Velcro.


The rotational cleaning part 140 may be disposed at the bottom of the lower housing 111. That is, the rotational cleaning part 140 may be disposed outside the module housing 110.


In addition, the rotational cleaning part 140 may be connected to the duster driving motor 170 to receive power. For example, the rotational cleaning part 140 may be connected to the duster driving motor 170 through at least one gear and rotated by the operation of the duster driving motor 170.


The rotational cleaning part 140 may include the first rotational cleaning part 141 and the second rotational cleaning part 142. For example, based on the suction port 113a in the state in which the wet duster module 100 is placed on the floor, the first rotational cleaning part 141 may be the rotational cleaning part 140 disposed at the left side, and the second rotational cleaning part 142 may be the rotational cleaning part 140 disposed at the right side, but the present disclosure is not limited thereto and the left and right sides may be switched.


In the present embodiment, the rotational center of the first rotational cleaning part 141 and the rotational center of the second rotational cleaning part 142 are disposed to be spaced apart from each other in the left-right direction.


The rotational center of the rotational cleaning part 140 may be located farther from the front end portion of the module housing 110 than a center axis that bisects a front-rear length of the module housing 110. This is intended to prevent the rotational cleaning part 140 from blocking the suction port 113a.


A distance between the rotational center of the first rotational cleaning part 141 and the rotational center of the second rotational cleaning part 142 may be greater than a diameter of the duster 150. This is intended to reduce mutual friction caused by interference between the first duster 151 and the second duster 152 during rotation and prevent a cleanable area from being reduced by an interfered portion.


The duster 150 may mop the floor by rotational movement.


The duster 150 may be coupled to the bottom of the rotational cleaning part 140 to face the floor.


The duster 150 is formed so that the bottom surface facing the floor has a predetermined area, and the duster 150 is formed in a flat shape. The duster 150 is formed in a shape that has a horizontal width (or a diameter) that is sufficiently greater than a vertical height. When the duster 150 is coupled to the lower housing 111, the bottom surface of the duster 150 may be parallel to the floor.


The bottom surface of the duster 150 may be generally circular, and the duster 150 may be entirely symmetrical rotationally. In addition, the duster 150 may be detachably attached to the bottom surface of the rotational cleaning part 140 and coupled to the rotational cleaning part 140 to rotate together with the rotational cleaning part 140.


In a state in which the rotational cleaning part 140 and the duster 150 are coupled to the bottom of the module housing 110, a portion of the duster 150 may protrude outward from the wet duster module 100 to clean not only the floor located under the wet duster module 100 but also the floor located outside the wet duster module 100.


As an example, the duster 150 may not only protrude to both sides of the wet duster module 100 but also protrude rearward.


The duster 150 may include the first duster 151 coupled to the first rotational cleaning part 141 and the second duster 152 coupled to the second rotational cleaning part 142. Therefore, when the first rotational cleaning part 141 is rotated by receiving the power of the first duster driving motor 171, the first duster 151 is also rotated together, and when the second rotational cleaning part 142 is rotated by receiving the power of the second duster driving motor 172, the second duster 152 may also be rotated together.


Meanwhile, in the present embodiment, the wet duster module 100 may further include the light emitting module 160.


The light emitting module 160 may radiate light forward from the wet duster module 100 to identify a foreign substance or microorganisms present in front of the wet duster module 100.


The light emitting module 160 may be disposed in front of the module housing 110. For example, the light emitting module 160 may be disposed on the front surface of the lower housing 111 and disposed in plural in the left-right direction. In this case, the light emitting module 160 may be disposed behind the cooling air inlet 117. With this arrangement, the light emitting module 160 may be cooled by air introduced through the cooling air inlet 117.


Meanwhile, the light emitting module 160 may be composed of a light emitting member and a diffusion plate.


The light emitting member may radiate light forward or downward. As an example, the light emitting member may be composed of a plurality of LEDs. In this case, light emitted by the light emitting member may be visible light, or according to embodiments, may be infrared (IR) or ultraviolet (UV) light. With this configuration, when the light emitting member is operated, not only it is possible to identify the presence of a foreign substance or microorganisms in front of the wet duster module 100, but also improve hygiene by sterilizing the foreign substance or microorganisms present in front of the wet duster module 100.


In addition, the diffusion plate may be disposed in front of the light emitting member to diffuse the light emitted from the light emitting member.


Meanwhile, the wet duster module 100 may further include the duster driving motor 170 for providing power for rotating the duster 150 and the rotational cleaning part 140.


Specifically, the duster driving motor 170 may include the first duster driving motor 171 for rotating the first rotational cleaning part 141 and the second duster driving motor 172 for rotating the second rotational cleaning part 142.


As described above, since the first duster driving motor 171 and the second duster driving motor 172 operate individually, there is an advantage in that even when any one of the first duster driving motor 171 and the second duster driving motor 172 fails, the rotational cleaning part 140 may be rotated by the other duster driving motor.


Meanwhile, the first duster driving motor 171 and the second duster driving motor 172 may be arranged to be spaced apart from each other in the left-right direction in the module housing 110. In addition, the first duster driving motor 171 and the second duster driving motor 172 may be located behind the suction port 113a.


The duster driving motor 170 may be disposed in the module housing 110. As an example, the duster driving motor 170 may be seated at the top of the lower housing 111 and covered by the upper housing 112. That is, the duster driving motor 170 may be located between the lower housing 111 and the upper housing 112.


Meanwhile, the wet duster module 100 includes the connection pipe 180 coupled to the cleaner main body 400 or the extension pipe 300.


The connection pipe 180 may include a first connection pipe 181 connected to the end portion of the flow path formation part 113, a second connection pipe 182 rotatably connected to the first connection pipe 181, and a guide pipe for allowing the inside of the connection pipe 181 to communicate with the inside of the second connection pipe 182.


The first connection pipe 181 may be formed in a pipe shape so that one end portion in an axial direction is connected to the end portion of the flow path formation part 113 and the other end portion in the axial direction may be rotatably coupled to the second connection pipe 182. In this case, the first connection pipe 181 may be formed in a shape in which a portion of an outer circumferential surface is cut, and the cut portion may be disposed to face the second connection pipe 182 and upward. With this configuration, in the state in which the wet duster module 100 is placed on the ground, an angle formed by the second connection pipe 182 and the ground may be changed according to the movement of the user's arm. That is, the first connection pipe 181 and the second connection pipe 182 may serve as a type of joint that may adjust an angle between the wet duster module 100 and the cleaner main body 400.


The second connection pipe 182 is formed in a pipe shape so that one end portion in the axial direction is rotatably coupled to a first connection pipe 313 and the other end portion in the axial direction is inserted into the cleaner main body 400 or the extension pipe 300 to be detachably coupled.


Meanwhile, in the present embodiment, an auxiliary battery housing that accommodates an auxiliary battery (not shown) may be coupled to the second connection pipe 182.


Meanwhile, wires may be built into the first connection pipe 181 and the second connection pipe 182, and the wires built into the first connection pipe 181 and the second connection pipe 182 may be electrically connected.


Meanwhile, the guide pipe may connect an internal space of the first connection pipe 181 with an internal space of the second connection pipe 182. The guide pipe may have a flow path formed therein so that air suctioned from the wet duster module 100 flows into the extension pipe 300 and/or the cleaner main body 400. In this case, the guide pipe may be deformed together with the rotation of the first connection pipe 181 and the second connection pipe 182. As an example, the guide pipe may be formed in the form of a corrugated pipe (Jabara).


Meanwhile, the wet duster module 100 may include a printed circuit board 190 on which a wet duster module controller 700 for controlling the wet duster module 100 is disposed. A current may be applied to the printed circuit board 190, and communication lines may be disposed on the printed circuit board 190. In this case, the printed circuit board 190 may be cooled by air flowing into the cooling air inlet 117 and discharged from the cooling air outlet 118.


Meanwhile, the module housing 110 may further include a first manipulation part 191 for controlling the amount of water discharged from the water tank 120. As an example, the first manipulation part 191 may be located at the rear side of the module housing 110.


The first manipulation part 191 may be manipulated by the user, and water may be discharged or may not be discharged from the water tank 120 by manipulating the first manipulation part 191.


Alternatively, the amount of water discharged from the water tank 120 may be adjusted by using the first manipulation part 191. For example, as the user manipulates the first manipulation part 191, water may be discharged from the water tank 120 by a first amount per unit time, or water may be discharged from the water tank 120 by a second amount more than the first amount per unit time.


The first manipulation part 191 may be provided to pivot in the left-right direction in the module housing 110 or provided to pivot vertically according to an embodiment.


For example, in a state in which the first manipulation part 191 is located at a neutral location, the amount of discharged water is zero, and when the first manipulation part 191 pivots to the left by pushing the left side of the first manipulation part 191, water may be discharged from the water tank 120 by the first amount per unit time. In addition, when the first manipulation part 191 pivots to the right by pushing the right side of the first manipulation part 191, water may be discharged from the water tank 120 by the second amount per unit time.


Meanwhile, the module housing 110 may further include the second manipulation part 192 for adjusting a phase of moisture discharged from the heat generator 200. As an example, the second manipulation part 192 may be located at the rear side of the module housing 110.


The second manipulation part 192 may be operated by the user, and water or steam (vapor) may be discharged from the heat generator 200 to the duster 150 by manipulating the second manipulation part 192.


The second manipulation part 192 may be rotatably provided in the module housing 110. For example, the second manipulation part 192 may be a rotational knob (dial).


For example, in a state in which the second manipulation part 192 is rotated and located at a first location, the heat generator 200 discharges water at room temperature to the duster 150 without heating the water. In addition, in a state in which the second manipulation part 192 is rotated and located at a second location different from the first location, the heat generator 200 heats water and discharges the heated water into the duster 150. In addition, in a state in which the second manipulation part 192 is rotated and located at a third location different from the first and second locations, the heat generator 200 may heat water to phase-change the water into steam (vapor) and then discharge the steam (vapor) to the duster 150.



FIG. 9 is a perspective view for describing the heat generator in the wet duster module according to one embodiment of the present disclosure, FIG. 10 is an exploded perspective view for describing the heat generator in the wet duster module according to one embodiment of the present disclosure, and FIG. 11 is a plan view for describing a heating chamber of the heat generator in the wet duster module according to one embodiment of the present disclosure.


Referring FIGS. 9 to 11, the heat generator 200 according to one embodiment of the present disclosure will be described as follows.


The heat generator 200 may generate hot water or steam (vapor) by heating water. The heat generator 200 may heat water supplied from the water tank 120 and supply the heated water to the duster 150.


The heat generator 200 may be coupled to the upper portion (upper surface of the bottom surface 111a) of the lower housing 111. For example, the heat generator 200 may be coupled to an upper surface of the flow path formation part 113. In this case, since the flow path formation part 113 is coupled to a central portion of the upper surface of the lower housing 111, the heat generator 200 may also be disposed at a central portion of the lower housing 111. With this configuration, when the heat generator 200 is operated, a specific location may not be overheated by the heat supplied from the heat generator 200, thereby preventing damage to the wet duster module 100. In addition, it is possible to minimize the overall volume of the wet duster module 100.


Meanwhile, the bottom surface of the heat generator is generally disposed parallel to the floor of the place where the heat generator is installed. In addition, a pipe through which steam is discharged is provided at the top of the heat generator. Therefore, when the heat generator is operated to generate steam (vapor), the hot steam rises and is discharged to the outside along the pipe.


However, in the case of the heat generator with such a structure, there is a high possibility that drain will be caused by contact between the steam and the inner wall or pipe of the heat generator in the steam rising process. Therefore, it is necessary to reduce heat loss that may occur in the steam flowing process, and even when drain occurs, it is necessary to reheat the water and supply the reheated water to the duster.


To solve such a problem, the heat generator 200 according to the embodiment of the present disclosure is disposed to be inclined at a predetermined angle with the floor.


Specifically, in a state in which the wet duster module 100 is placed on the floor (state in which the duster 150 is placed on the floor to mop the floor), the bottom surface of the heat generator 200 may be disposed to be inclined at a predetermined angle a with the floor.


Meanwhile, the cleaner 1 of the present disclosure may include the extension pipe 300.


The extension pipe 300 may be coupled to the cleaner main body 400 and the wet duster module 100.


For example, the extension pipe 300 may be formed in a long cylindrical shape.


Therefore, an internal space of the extension pipe 300 may communicate with an internal space of the wet duster module 100. In addition, the extension pipe 300 may communicate with a suction flow path formed in a suction part of the cleaner main body 400.


When a suction force is generated through a suction motor (not shown), the suction force may be provided to the wet duster module 100 through the suction part and the extension pipe 300. Therefore, external dust and air may flow into the cleaner main body 400 through the wet duster module 100 and the extension pipe 300. In addition, dust and air introduced from the wet duster module 100 may pass through the extension pipe 300 and then flow into the cleaner main body 400.


Meanwhile, wires may be embedded in the extension pipe 300. Therefore, the cleaner main body 400 and the wet duster module 100 may be electrically connected through the extension pipe 300.


Meanwhile, the cleaner 1 of the present disclosure may include the cleaner main body 400.


The cleaner main body 400 may include a suction motor, a dust bin, and a battery. The cleaner main body 400 may operate the suction motor by receiving power from the battery and generate the suction force by operating the suction motor.


The suction flow path may be formed in the cleaner main body 400 so that the air and dust introduced from the wet duster module 100 may flow therethrough.


In addition, the cleaner main body 400 may be provided with at least one cyclone part for separating dust suctioned therein by applying the principle of a dust collector using a centrifugal force. Therefore, the air introduced through the suction flow path may flow spirally to separate dust.


In addition, the cleaner main body 400 may be provided with a dust bin to store the dust separated from the suctioned air through a cyclonic flow.


In addition, the cleaner main body 400 is provided with an input portion to allow the user to set not only whether to supply power and a strength of air suction, but also a rotation strength of the duster, the amount of supplied water, whether to heat water, and whether to supply steam.


Meanwhile, the cleaner 1 of the present disclosure may include an auxiliary battery housing 500.


The auxiliary battery housing 500 may be coupled to the wet duster module 100 or the extension pipe 300, and an auxiliary battery 600 may be detachably coupled thereto. As an example, the auxiliary battery housing 500 may be coupled to the connection pipe 180 of the wet duster module 100 and may detachably accommodate the auxiliary battery 600 therein.


As an example, the auxiliary battery housing 500 may connect a battery (not shown) provided in the cleaner main body 400 with the auxiliary battery 600 in series. With this configuration, power can be stably supplied when high power supply is required, such as when the heat generator 200 is operated.


As another example, the auxiliary battery housing 500 may connect the battery (not shown) provided in the cleaner main body 400 with the auxiliary battery 600 in parallel. With this configuration, the use time of the cleaner 1 can be extended.


As still another example, the auxiliary battery housing 500 may electrically connect the auxiliary battery 600 with the heat generator 200. With this configuration, electrical energy from the auxiliary battery 600 may be supplied to the heat generator 200, which requires high power supply.


Meanwhile, the cleaner 1 of the present disclosure may include the auxiliary battery 600.


The auxiliary battery 600 may supply power to the wet duster module 100 or the cleaner main body 400. The auxiliary battery 600 may store electrical energy therein. For example, the auxiliary battery 600 may be a secondary battery.


Although the present disclosure has been described in detail through specific


embodiments, this is intended to specifically describe the present disclosure, and it is apparent that the present disclosure is not limited thereto, and the present disclosure can be modified or improved by those skilled in the art without departing from the technical spirit of the present disclosure.


All simple modifications or changes of the present disclosure fall within the scope of the present disclosure, and the specific scope of the present disclosure will be made clear by the appended claims.

Claims
  • 1. A wet duster module of a cleaner, which mops and cleans a foreign substance on a floor, the wet duster module comprising: a module housing coupled to a cleaner main body, forming an appearance, and forming a space therein;a water tank coupled to the module housing and storing water therein;at least one rotational cleaning part disposed at the bottom of the module housing and coupled to a duster;a heat generator configured to heat water supplied from the water tank; anda diffuser connected to the heat generator to supply the heated moisture to the duster,wherein the diffuser is disposed at the bottom of the module housing, anddisposed outward in a radial direction of the rotational cleaning part.
  • 2. The wet duster module of the cleaner of claim 1, wherein the diffuser extends in a circumferential direction of the rotational cleaning part.
  • 3. The wet duster module of the cleaner of claim 2, wherein the diffuser extends along a virtual circle, and a center of the circle is disposed on a rotational axis of the rotational cleaning part.
  • 4. The wet duster module of the cleaner of claim 2, wherein the diffuser is formed in an arc shape.
  • 5. The wet duster module of the cleaner of claim 4, wherein the diffuser is disposed inside the rotational axis of the duster.
  • 6. The wet duster module of the cleaner of claim 2, wherein the diffuser is formed in a ring shape.
  • 7. The wet duster module of the cleaner of claim 1, wherein assuming a virtual reference line passing through the module housing, a plurality of the rotational cleaning parts are disposed symmetrically with respect to the reference line, andthe diffusers are disposed symmetrically with respect to the reference line.
  • 8. The wet duster module of the cleaner of claim 1, wherein the diffuser further includes a drain hole through which condensed condensate is discharged.
  • 9. The wet duster module of the cleaner of claim 8, wherein the diffuser includes a diffuser nozzle configured to discharge the heated moisture toward the duster, and a distance from the rotational axis of the rotational cleaning part to the diffuser nozzle is greater than a distance from the rotational axis of the rotational cleaning part to the drain hole.
  • 10. The wet duster module of the cleaner of claim 1, wherein the diffuser is disposed above the duster to discharge the heated moisture to an upper surface of the duster.
  • 11. The wet duster module of the cleaner of claim 1, wherein the module housing includes a suction port disposed at one side thereof to suction air, and the diffuser is disposed behind the suction port.
  • 12. The wet duster module of the cleaner of claim 1, wherein the module housing includes a diffuser installation groove which is formed to be recessed upward from a lower surface, and into which at least a portion of the diffuser is inserted.
  • 13. The wet duster module of the cleaner of claim 1, wherein a lower end of the diffuser is disposed to be spaced apart from an upper surface of the duster.
  • 14. The wet duster module of the cleaner of claim 1, wherein an inner end of the diffuser is disposed to be spaced apart from an outer end of the rotational cleaning part.
  • 15. The wet duster module of the cleaner of claim 1, wherein the module housing includes a partition wall configured to partition a duster driving motor configured to rotate the rotational cleaning part and the heat generator, and the diffuser is disposed closer to the heat generator than the duster driving motor with respect to the partition wall.
  • 16. A wet duster module of a cleaner, which mops and cleans a foreign substance on a floor, the wet duster module comprising: a module housing coupled to a cleaner main body, forming an appearance, and forming an internal space therein;a partition wall extending from one side of the module housing to the internal space and partitioning the internal space into a first internal space and a second internal space surrounding the first internal space;a water tank coupled to the module housing and storing water therein;a duster disposed on a lower surface of the module housing;a heat generator disposed in the first internal space and heating water supplied from the water tank; anda diffuser disposed in the first internal space and connected to the heat generator to supply the heated moisture to the duster.
  • 17. The wet duster module of the cleaner of claim 16, wherein the duster rotates about a rotational axis, and the rotational axis is disposed in the second internal space.
  • 18. The wet duster module of the cleaner of claim 16, further comprising a duster driving motor disposed in the second internal space and rotating the duster.
  • 19. The wet duster module of the cleaner of claim 16, further comprising a water pump disposed in the second internal space and pumping the water stored in the water tank to the heat generator.
Priority Claims (1)
Number Date Country Kind
10-2022-0071040 Jun 2022 KR national
PCT Information
Filing Document Filing Date Country Kind
PCT/KR2023/005596 4/25/2023 WO