WO2024136301A1 - Dishwasher - Google Patents

Abstract

Disclosed is a dishwasher. The dishwasher disclosed herein comprises: a tub providing a washing chamber; a rack disposed in the washing chamber and including a first wire that extends in a first direction and a second wire that is spaced apart from the first wire in a different direction than the first direction and has a coupling portion; and a detergent box attached to the rack. The detergent box includes: a basket having a space for accommodating the detergent; a first holder that protrudes from the basket, is open in the first direction, and provides a groove into which the first wire is inserted; and a second holder that protrudes from the basket and provides a groove into which the coupling portion of the second wire is inserted.

Description

dish wash machine

The present disclosure relates to a dishwasher, and more specifically to a dishwasher including a detergent box.

A dishwasher is a home appliance that sprays washing water to remove dirt such as food residue from dishes, cutlery, etc. (hereinafter referred to as 'object to be washed') and cleans the object.

A rack on which a washing object is placed is placed in a washing space inside the dishwasher, and washing water is sprayed from a nozzle disposed on the lower and/or upper side of the rack. The nozzle is provided on a rotating spray arm to spray washing water over a wide area.

Dishwashers spray high-pressure washing water through a nozzle to improve cleaning power. Additionally, when detergent is supplied to the dishwasher, cleaning power is improved.

The dishwasher is provided with means for receiving detergent for supply of detergent. The detergent receiving means may be provided on the door. For example, the detergent receiving means may be provided on the inner panel of the door facing the washing space.

Alternatively, the detergent receiving means may be disposed in a washing space. For example, the detergent receiving means may be mounted on a rack.

Hereinafter, the detergent receiving means provided in the door is referred to as a 'dispenser', and the detergent receiving means placed in the washing space is referred to as a 'detergent box'.

EP0691102A1 discloses a dispensing device that can be applied to a washing machine or dishwasher. The device includes a container containing detergent and fastening means for securing the container to the internal structure of the dishwasher. The device discloses a structure in which a groove is provided between the fastening means and the container, and the device can be fixed to the internal structure of a dishwasher in the groove.

However, the structure of the fastening means disclosed in the above device is such that the container can be two-dimensionally restrained to the internal structure of the dishwasher. That is, the device is not completely bound by the internal structure and has a structure that can rotate.

Accordingly, when high-pressure washing water is sprayed, the device moves and collides with the internal structure, causing damage and noise.

The present disclosure aims to solve the above-described problems and other problems.

Another purpose may be to provide a detergent box coupled to a rack and a dishwasher including the same.

Another purpose may be to provide a dishwasher in which a detergent box is detachably coupled to a rack.

Another purpose may be to provide a dishwasher that can selectively use the dispenser provided on the door and the detergent box attached to the rack according to the user's preference.

Another purpose may be to provide a dishwasher in which the detergent box is coupled to the rack and does not rotate.

Another goal may be to provide a dishwasher that can easily mount a detergent box on a rack.

Another purpose may be to provide a dishwasher that prevents damage to the holder that fastens the detergent box to the rack.

Another purpose may be to provide a dishwasher that minimizes the clearance between the detergent box and the rack.

Another purpose could be to provide a dishwasher that would reduce the gap between the tub and the detergent box.

Another purpose may be to provide a dishwasher in which the detergent box does not interfere with the door or tub.

Another purpose may be to provide a dishwasher including a detergent box into which detergent can be easily introduced.

Another objective may be to provide a dishwasher including a detergent box that can be manufactured by injection molding.

Another purpose may be to provide a dishwasher that solves the problem of weld lines occurring when injection molding a detergent box.

Another purpose may be to provide a dishwasher that prevents the problem of excessive dissolution of detergent in a preliminary washing process prior to the main washing process.

Another purpose may be to provide a dishwasher that prevents the problem of detergent sticking to the detergent box.

Another purpose may be to provide a dishwasher that reduces contact between the detergent box and dishes and prevents moisture from remaining on the surface of the detergent box after washing.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to one aspect of the present disclosure for achieving the above-described object, a dishwasher includes a tub providing a washing room, a rack disposed in the washing room, and a detergent box coupled to the rack.

The rack includes a first wire and a second wire. The first wire may extend in a first direction.

The second wire has a coupling portion spaced apart from the first wire. The coupling portion is spaced apart from the first wire in a direction different from the first direction.

The detergent box includes a basket, a first holder, and a second holder.

The basket has a space to accommodate detergent. The basket has an opening through which the detergent is introduced. The opening may open upward. The opening may open upward and forward.

The first holder protrudes from the basket. The first holder provides a groove into which the first wire is inserted. The groove is open in the first direction. The first wire penetrates the groove.

The first holder may be coupled to the first wire so that the detergent box can rotate around the first wire.

The second holder protrudes from the basket. The second holder provides a groove into which the coupling portion of the second wire is inserted.

The second holder may be coupled to the coupling portion of the second wire to restrict rotation of the basket.

The second holder may extend in a direction intersecting the radius of a circle with its center located in the groove of the first holder.

The second holder may extend in a tangential direction of a circle with its center located in the groove of the first holder.

The second holder may extend parallel to a second direction perpendicular to the first direction.

The second holder includes: a shoulder protruding from the basket; an arm extending from the shoulder in the second direction; and a hand that protrudes from the arm and is spaced apart from the shoulder in the second direction, and a distance between the shoulder and the hand may be greater than a diameter of the second wire.

The second holder may further include a stopper that protrudes from the arm and is spaced apart from the hand.

The second wire may be inserted into the space between the stopper and the hand.

The stopper may extend toward the shoulder and be connected to the shoulder.

The stopper may have a width smaller than the width of the arm.

The stopper may extend at an angle with respect to the second direction.

The stopper may extend in a direction away from the hole of the first holder as it moves away from the shoulder.

It may further include a reinforcing rib that protrudes from the shoulder in a direction opposite to the arm and is connected to the basket.

The second holder may further include an inclined surface extending from the front end of the arm to the hand.

According to one aspect of the present disclosure, a dishwasher may include a tub providing a washing room, a door opening and closing the washing room, a rack disposed in the washing room, and a detergent box.

The door may be rotatably coupled to the front of the tub.

The rack may provide a storage space for storing dishes. The storage space may be an open space. The rack may include a first wire. The first wire may extend horizontally.

The detergent box may include a basket and a first holder.

The basket may have a detergent inlet. The detergent inlet may be opened upward.

The first holder may extend from the basket. The first holder may be coupled to the first wire.

The basket may include a bottom, a front wall, and a side wall extending from the bottom. The side wall may be connected to the front wall.

The basket may be placed in the storage space.

The first holder may be disposed at a position corresponding to the front end of the side wall in the front-back direction.

The rack may further include a handle disposed above the first wire and in parallel with the first wire.

The first holder may be located rearward of the handle.

The door may be rotatably coupled to the front lower portion of the tub.

The rack may be placed at the bottom of the washing room.

The basket may include an inclined surface connecting the floor to the front wall.

A side wall of the basket may extend upward beyond the front wall and the first holder.

The detergent inlet may be opened upward and forward.

The rack may further include an upper wire disposed above the first wire.

The upper wire may include a bending part bent upward.

The detergent box may be placed below the bending part.

It may further include an extension part extending from the front wall.

The first holder includes: a panel connected to the extension part and extending in the width direction of the detergent box; And it may include a protrusion protruding rearward from the panel.

The extension part may include a through hole disposed at a position corresponding to the protrusion.

The basket is connected to the side wall and may further include a rear wall facing the front wall.

The detergent box may further include a plurality of protrusions protruding rearward from the rear wall.

The dishwasher may include a door that opens and closes the washing chamber. The door can be rotatably coupled to the tub.

The dishwasher may include a dispenser provided on the door. The dispenser may contain detergent.

According to one aspect of the present disclosure, a dishwasher includes a tub providing a washing room, a rack disposed in the washing room, and a detergent box coupled to the rack.

The detergent box includes a basket that provides a space to accommodate detergent.

The bottom of the basket includes: a closure disposed at the center of the bottom; a plurality of bottom holes disposed on one side of the closure part; It includes ribs that partition the plurality of bottom holes.

The rib may have a smaller width than the closure.

The closed portion may protrude upward from the rib in the space containing the detergent.

According to one aspect of the present disclosure, the detergent box includes a bottom and a peripheral wall.

The peripheral wall extends upward from the floor to provide a space for accommodating detergent.

The floor has a plurality of holes.

A closure is disposed in the center of the floor.

The plurality of holes are disposed on one side and the other side of the closure. A plurality of holes are provided on one side of the closed portion. A plurality of holes may be provided on the other side of the closure.

The bottom includes ribs defining a plurality of holes disposed on one side of the closure. The bottom may include ribs that partition a plurality of holes disposed on the other side of the closure.

The closed portion may protrude upward from the rib in the space containing the detergent.

The detergent box may further include a holder that protrudes from the peripheral wall and is configured to be coupled to a rack of a dishwasher.

Specific details of other embodiments are included in the detailed description and drawings.

According to at least one of the embodiments of the present disclosure, a detergent box coupled to a rack and a dishwasher including the same can be provided.

According to at least one of the embodiments of the present disclosure, a dishwasher in which a detergent box is detachably coupled to a rack can be provided.

According to at least one of the embodiments of the present disclosure, a dishwasher can be provided that can selectively use a detergent box coupled to a dispenser and a rack according to the user's preference.

According to at least one of the embodiments of the present disclosure, the detergent box includes a first holder and a second holder, and a dishwasher in which the detergent box is coupled to the rack and does not rotate can be provided.

According to at least one of the embodiments of the present disclosure, the first holder is rotatably coupled to the first wire, thereby providing a dishwasher in which a detergent box can be easily mounted on a rack.

According to at least one of the embodiments of the present disclosure, the first holder extends in the width direction of the detergent box, and the second holder includes an arm longer than the diameter of the wire of the rack, a stopper connected to the shoulder, a shoulder, and a basket. A dishwasher can be provided that prevents damage to the holder that fastens the detergent box to the rack by providing a connecting reinforcing rib.

According to at least one of the embodiments of the present disclosure, even if the arm of the second holder is longer than the diameter of the wire of the rack, it is possible to provide a dishwasher that has a stopper and minimizes the gap between the detergent box and the rack.

According to at least one of the embodiments of the present disclosure, it is possible to provide a dishwasher that reduces the gap between the tub and the detergent box through the structure of the first holder and the basket.

According to at least one of the embodiments of the present disclosure, it is possible to provide a dishwasher in which the detergent box does not interfere with the door or tub by placing the basket in the storage space of the rack.

According to at least one of the embodiments of the present disclosure, a dishwasher can be provided including a detergent box in which the detergent inlet is opened not only at the top but also at the front, making it easy to insert detergent.

According to at least one of the embodiments of the present disclosure, the extension connecting the first holder and the front wall has a through hole at a position corresponding to the protrusion of the first holder, and is a dishwasher including a detergent box that can be manufactured by injection molding. can be provided.

According to at least one of the embodiments of the present disclosure, it is possible to provide a dishwasher that has a closing portion to solve the problem of a weld line occurring when injection molding a detergent box.

According to at least one of the embodiments of the present disclosure, it is possible to provide a dishwasher that has a closing portion to prevent the problem of excessive dissolution of detergent in a preliminary washing process performed before the main washing process.

According to at least one of the embodiments of the present disclosure, it is possible to provide a dishwasher that prevents the problem of detergent sticking to the detergent box through the ridge protruding upward from the closing portion.

According to at least one of the embodiments of the present disclosure, it is possible to provide a dishwasher that has a protrusion protruding from the rear wall of the basket to reduce contact between the detergent box and dishes and to prevent moisture remaining on the surface of the detergent box after washing.

1 is a perspective view of a dishwasher according to an embodiment of the present disclosure.

Figure 2 is a perspective view showing the door of a dishwasher in an open state according to an embodiment of the present disclosure.

Figure 3 is a schematic diagram showing the interior of a dishwasher according to an embodiment of the present disclosure.

Figure 4 is a perspective view of a first rack and detergent box of a dishwasher according to an embodiment of the present disclosure.

Figure 5 is a perspective view of the detergent box shown in Figure 4.

Figure 6 is a front view showing a state in which the first rack and detergent box shown in Figure 4 are combined.

Figure 7 is a cross-sectional view of the first rack and detergent box shown in Figure 6 and a schematic diagram of the door.

Figure 8 is a schematic diagram of a first rack on which a cleaning object is placed.

Figure 9 is a rear view of the detergent box shown in Figure 5.

Figure 10 is a front view of the detergent box shown in Figure 5.

Figure 11 is a cross-sectional perspective view of the detergent box shown in Figure 10.

Figure 12 is a side view of the detergent box shown in Figure 5.

Figure 13 is a bottom view of the detergent box shown in Figure 5.

Figure 14 is a cross-sectional view of the detergent box shown in Figure 9.

Figure 15 is a cross-sectional view of the first rack and detergent box shown in Figure 6.

Figure 16 is a rear perspective view of the second holder of the detergent box shown in Figure 5.

Figure 17 is a plan view of the detergent box shown in Figure 5.

Figure 18 is a cross-sectional view of the detergent box shown in Figure 17.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves.

Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present disclosure are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

Referring to FIG. 1, the dishwasher includes a tub 10. The tub 10 may provide a washing room 11. The washing chamber 11 may be provided inside the tub 10.

The tub 10 may include a floor 12 (see FIG. 3) that provides a bottom surface of the washing room 11.

The tub 10 may include a side wall 15 connected to the floor 12 and extending upward. The side walls 15 may be provided as a pair. A pair of side walls 15 may be spaced apart from each other. The direction in which the pair of side walls 15 are spaced apart can be referred to as the width direction of the washing chamber 11.

The tub 10 may include an upper surface 14 that provides the ceiling of the washing room 11. The upper surface 14 may be connected to the side wall. The upper surface 14 may connect a pair of side walls.

The tub 10 may include a rear wall 16 (see FIG. 3) connected to the floor 12 and extending upward.

The tub 10 may have a hexahedral shape with one side open. The front of the tub 10 may be open.

The washing chamber 11 may be opened forward (see Figure 2). The direction from the opening of the washing chamber 11 toward the rear wall (i.e., front-to-back direction) can be referred to as the depth direction of the washing chamber 11.

The dishwasher may include a door 23 that opens and closes the washing chamber 11. The door 23 may be provided in front of the tub 10. The door 23 may be rotatably coupled to the front of the tub 10.

The lower part of the door 23 may be coupled to the tub 10. The door 23 may be hinged to the front lower part of the tub 10. The door 23 may be opened so that the upper portion of the door 23 faces forward (see Figure 2).

The door 23 may include a door handle 235. The door handle 235 may be provided on the upper part of the door 23.

A handle groove 237 may be provided on the lower side of the door handle 235. The handle groove 237 may extend in the width direction of the door 23 (width direction of the washing room).

The dishwasher may include a base 25. The base 25 may provide a bottom surface of the dishwasher.

The bottom 12 of the tub 10 may be spaced upward from the base 25. A space 26 may be provided between the bottom 12 and the base 25 of the tub 10. Components such as a PCB (27, or control unit), a sump 60, and a pump 63, which will be described later, may be placed in the space. Hereinafter, the space 26 is referred to as the machine room 26.

An interface 28 may be provided on the top of the door 23. The interface 28 may be placed on the upper side of the door.

The interface 28 can receive commands from the user. The interface 28 may provide information related to the dishwasher to the user.

For example, a user may input commands for a washing cycle and options through the interface 28. For example, the interface 28 may display information about cleaning procedures and options.

The control unit 27 can control the dishwasher. The control unit 27 can receive commands from the user through the interface 28. The control unit 27 may provide information about the dishwasher to the user through the interface 28.

Hereinafter, configurations described later may be controlled by the control unit 27.

Referring to FIG. 2, the dishwasher may further include a casing 21. The casing 21 may be disposed outside the tub 10.

The casing 21 may include a cabinet 211 and a top plate 213. The cabinet 211 may cover the side wall 15 of the tub 10. The top plate 213 may cover the upper surface 14 of the tub 10.

As described above, the washing room 11 opens forward, and the door 23 can open and close the washing room 11.

The dishwasher may include a rack 30 disposed in the washing chamber 11. Washing objects such as dishes, cutlery, and/or cooking utensils may be placed on the rack 30.

The rack 30 may include a first rack 31. The first rack 31 may be placed in the lower portion of the washing room 11. The first rack 31 may be placed on the bottom 12 of the washing room. Alternatively, the first rack 31 may be placed above the bottom 12 .

The rack 30 may include a second rack 32 disposed above the first rack 31. The height of the position where the second rack 32 is placed can be adjusted.

The dishwasher may include a spray unit 50. The injection unit 50 may be placed on the lower side of the rack 30. The spray unit 50 can spray washing water toward the upper side.

The injection unit 50 may include a first injection arm 51. The first spray arm 51 may be disposed on the lower side of the first rack 31.

The injection unit 50 may include a second injection arm 52. The second spray arm 52 may be disposed below the second rack 32.

The door 23 may be rotatably coupled to the front lower portion of the tub 10.

The door 23 may include a door cover 233. The door cover 233 may face downward when the door 23 is open.

The door 23 may include an inner panel 231. The inner panel 231 may face upward when the door 23 is open. When a user places a cleaning object on a rack, water dripping from the cleaning object or the rack may fall on the inner panel 231.

The dishwasher may include a steam nozzle (57). The steam nozzle 57 may be provided on the door 23. The steam nozzle 57 may be provided on the inner panel 231.

The dishwasher may include a dispenser 24. The dispenser 24 may be provided on the inner panel 231.

The rack 30 may be provided to be movable in the depth direction of the washing room 11. The rack 30 can be slid. The rack 30 can be pulled forward from the washing room 11. The rack 30 may be brought in to the rear and placed in the washing room 11.

The first rack 31 may be slidably supported on the side wall 15. The first rack 31 may be slidably supported on rails provided on the side wall 15.

The height of the position where the second rack 32 is placed can be adjusted. For example, a plurality of rails supporting the second rack 32 may be provided, and the plurality of rails may be arranged at different heights.

The rack 30 may include a third rack 33. The third rack 33 may be placed above the first rack 31. The third rack 33 may be placed above the second rack 32. The third rack 33 may be placed at the top of the plurality of racks 30 .

The third rack 33 may be slidably supported on the side wall 15. The second rack 32 may be slidably supported on a rail provided on the side wall 15.

The third rack 33 may have a lower height between the top and bottom than the first and second racks 33.

The third rack 33 may be configured to hold cutlery and/or cooking utensils.

The spray unit 50 may include nozzles 513, 523, and 53 (see FIG. 3). The nozzles 513, 523, and 53 can spray washing water.

The injection unit 50 may be rotatably provided.

The first spray arm 51 may be provided on the bottom 12. The first spray arm 51 may be disposed on the lower side of the first rack 31. The first spray arm 51 can spray washing water toward the first rack 31.

The first injection arm 51 may include a first nozzle 513. A plurality of first nozzles 513 may be provided. Washing water may be sprayed from the first nozzle 513.

The first spray arm 51 may be rotatable. The first spray arm 51 can be rotated by a motor. Alternatively, the washing water may rotate due to the reaction force of the force sprayed from the first nozzle 513.

The second spray arm 52 may be disposed below the second rack 32. The second spray arm 52 may be coupled to the second rack 32. The second spray arm 52 may spray washing water toward the second rack 32.

The second injection arm 52 may include a second nozzle 523. A plurality of second nozzles 523 may be provided. Washing water may be sprayed from the second nozzle 523.

The second injection arm 52 may be rotatably provided. The washing water may rotate due to the reaction force of the force sprayed from the second nozzle 523. Alternatively, the second injection arm 52 may be rotated by a motor.

The injection unit 50 may include a top nozzle 53. The top nozzle 53 may be placed on the upper side of the rack 30. The top nozzle 53 may be provided on the ceiling 14 of the washing room 11. The top nozzle 53 can spray washing water downward. The top nozzle 53 can spray washing water toward the rack 30. The top nozzle 53 can spray washing water toward the third rack 33.

The door 23 may include a door cover 233. The door cover 233 may face forward with the door 23 closing the washing room 11. When the door 23 closes the washing room 11, the door cover 233 may be exposed to the outside.

The door 23 may include an inner panel 231. In a state in which the door 23 closes the washing room 11, the inner panel 231 may face the washing room 11. In a state in which the door 23 closes the washing room 11, the inner panel 231 may provide a front surface of the washing room 11. The dishwasher may include a dispenser 24. Dispenser 24 can accommodate detergent. The dispenser 24 can accommodate tablet-type detergent. Alternatively, the dispenser may contain powdered detergent.

Meanwhile, some of the nozzles 513, 523, and 53 of the spray unit 50 may be directed toward the dispenser 24 provided on the door 23. In particular, the outermost nozzle among the plurality of nozzles 523 provided on the second spray arm 52 can spray washing water to the dispenser 24 according to the rotational position of the second spray arm 52.

When supplying detergent through the dispenser 24 of the door 23, washing water is sprayed on the tablet detergent inside the dispenser 24, causing the tablet detergent to melt or fall into the inside of the tub 10, that is, into the washing chamber 11, where it melts. You can. Depending on the convenience and preference of each user, they may prefer to put tablet detergent in a separate detergent box attached to the rack rather than putting detergent in the door dispenser.

Alternatively, depending on the type of detergent or the washing water conditions and environment for each household, the detergent may not dissolve well in the dispenser 24 of the door 23.

The dishwasher may include a detergent box (4). The detergent box 4 can accommodate detergent. The detergent box 4 can accommodate tablet-type detergent.

The detergent box 4 can be placed on the rack 30. The detergent box (4) can be coupled to the rack (30).

The detergent box 4 may be placed on the first rack 31. The detergent box (4) may be coupled to the first rack (31). The detergent box 4 may be placed and/or coupled to the lowest rack 31 among the plurality of racks 31, 32, and 33.

Accordingly, it is possible to provide a dishwasher that can selectively use the dispenser 24 of the door 23 and the detergent box 4 coupled to the rack 30 according to the user's preference.

The dishwasher can supply steam to the washing chamber (11).

The steam nozzle 57 can supply steam to the washing chamber 11. The steam nozzle 57 is provided in the front of the washing room 11 and can supply steam toward the rear. The steam nozzle 57 is provided at the bottom of the washing chamber 11 and can supply steam upward. The steam nozzle 57 is provided at the front lower part of the washing chamber 11 and can supply steam toward the upper rear.

The steam nozzle 57 may be provided on the door 23. The steam nozzle 57 may be provided on the inner panel 231. The steam nozzle 57 may be provided on the lower part of the inner panel 231. The steam nozzle 57 may be provided on the inclined surface 232 (see FIG. 7) of the inner panel 231.

The dishwasher may include a sump (60). The sump 60 can receive water from an external water source such as a tap. The sump 60 can store water supplied from outside.

The sump 60 can receive water from an external water source through the water supply pipe 71. The water supply pipe 71 may be connected to an external water source. The water supply pipe 71 may connect the external water source and the sump 60.

The water supply valve 72 can control the water supply pipe 71. The water supply valve 72 can control the flow of water from an external water source to the sump 60.

The sump 60 may be provided on the lower side of the tub 10. The sump 60 may be disposed below the bottom 12 of the tub 10. The sump 60 may be placed in the machine room 26. The sump 60 is connected to the bottom 12 of the tub 10 and may be placed in the machine room 26.

The sump 60 can store water drained from the washing chamber 11.

The dishwasher may include a filter 68. The filter 68 can filter out foreign substances from the water flowing from the washing chamber 11 to the sump 60. Filter 68 may be placed in the sump. The filter 68 may be provided on the bottom 12 of the washing chamber 11.

The dishwasher may include a pump 63 that supplies washing water to the washing chamber 11. The pump 63 can pump water from the sump 60. The pump 63 can pump water and supply it to the spray unit 50.

The pump 63 may include an impeller 633, a pump housing 64 that accommodates the impeller 633, and a washing motor 631 that rotates the impeller 633.

The dishwasher may include a heater 66 that heats wash water. Heater 66 may be connected to pump 63. The heater 66 can heat the water introduced into the pump 63.

Alternatively, the heater 66 may be provided separately from the pump 63. Heater 66 may heat water pumped from pump 63. Alternatively, the heater 66 may be provided between the sump 60 and the pump 63 to heat the water flowing into the pump 63.

The switching valve 75 may be connected to the washing pump 63. The switching valve 75 can receive washing water from the pump 63.

The switching valve 75 may be coupled to the valve coupling portion 76.

The valve coupling portion 76 may be provided in the sump 60. The valve coupling portion 76 may form the lower part of the switching valve 75. The valve coupling portion 76 may be connected to the pump 63.

The switching valve 75 may be connected to the injection unit 50.

The switching valve 75 can distribute washing water. The switching valve 75 can selectively supply washing water to at least one of the first spray arm 51, the second spray arm 52, and the top nozzle 53.

The pump inlet pipe 73 may connect the sump 60 and the pump 63. When the pump 63 operates, water in the sump 60 may flow into the pump 63 through the inlet pipe 73.

The discharge pipe 74 may be connected to the pump 63. The discharge pipe 74 can guide the water discharged from the pump 63 toward the spray unit 50.

The discharge pipe 74 may be connected to the switching valve 75. The discharge pipe 74 may be connected to the valve coupling portion 76.

The discharge pipe 74 can connect the pump 63 and the switching valve 75.

The connectors 751, 752, and 753 can connect the injection unit 50 to the switching valve 75.

The connectors 751, 752, and 753 may include a first connector 751 connected to the first spray arm 51. The first connection pipe 751 may be provided inside the first spray arm 51.

The connectors 751, 752, and 753 may include a second connector 752 connected to the second spray arm 52. The second connector 752 may be provided on the rear wall of the tub 10.

The connectors 751, 752, and 753 may include a third connector 753 connected to the top nozzle 53. The third connector 753 may be provided on the upper surface 14 of the tub 10.

When the pump 63 operates, the washing water discharged from the pump 63 may flow into the switching valve 75. Washing water flowing into the switching valve 75 may flow into at least one of the plurality of connection pipes 751, 752, and 753 by the switching valve 75.

When the washing water flows into the first connection pipe 751, the washing water may be sprayed from the nozzle 513 of the first spray arm 51.

When the washing water flows into the second connection pipe 752, the washing water may be sprayed from the nozzle 523 of the second spray arm 52.

When the washing water flows into the third connection pipe 753, the washing water may be sprayed from the top nozzle 53.

The washing water sprayed into the washing chamber 11 collects at the bottom 12 and flows into the sump 60. The washing water flowing into the sump 60 is sprayed into the washing room by the pump 63 and can be circulated again.

The sump 60 may be connected to the drain pump 78. The drain pipe 79 can connect the sump 60 and the drain pump 78.

When the drain pump 78 operates, water in the sump 60 can be drained outside the dishwasher.

1 to 3, the dishwasher can receive commands from the user through the interface 28. The user can turn the dishwasher on or off through the interface 28. The user can select commands regarding washing courses and options through the interface 28.

The selectable washing courses may include a standard course, an automatic course, a rapid course, a strong course, a delicate course, and a soaking course.

For example, a standard course may be a course that efficiently applies washing, drying, time, power consumption, and water usage. For example, the automatic course may be a course that automatically adjusts the washing time and temperature based on information about the dishes stored in the rack 30. For example, a rapid course may be a course with a shorter cleaning time than a standard course. For example, a strong course may be a course in which washing is performed at a higher temperature of washing water and for a longer period of time than the standard course. For example, the delicate course may be a course in which the water pressure sprayed from the spray unit 50 is weaker than the standard course. For example, the soaking course may be a course in which the washing time is longer and the temperature of the washing water is higher than the standard course.

The options may include wash area, wash temperature, wash time, rinse temperature, rinse time, steam, dry time, etc.

Once the user selects a washing course and option, the interface 28 may display the expected washing time. The interface 28 may display the estimated remaining cleaning time while cleaning is in progress.

The washing course may include a preliminary washing process, a main washing process, a rinsing process, a steam process, and a drying process.

Once the cleaning cycle is started, the pre-cleaning cycle can begin.

When the pre-washing cycle begins, the control unit 27 opens the water supply valve 72 to supply water to the sump 60. The control unit 27 can drive the pump 63 to spray washing water into the washing room through the spray unit 50. The control unit 27 may also drive the heater 66. After the preset pre-cleaning stroke time has elapsed, the control unit 27 may drive the drain pump 78 to drain water from the sump 60.

Once the pre-cleaning cycle is complete, the main cleaning cycle can begin.

When the main cleaning process begins, the control unit 27 opens the water supply valve 72 to supply water to the sump 60. Water supplied to the sump 60 may be supplied to the pump housing 64. The control unit 27 may drive the heater 66 to heat the washing water stored in the sump 60 and the pump housing 64. The control unit 27 heats the heater to heat the washing water to a preset washing temperature. The control unit 27 can drive the pump 63 to spray washing water into the washing room through the spray unit 50. The control unit 27 can open the dispenser 24. When the dispenser 24 is opened, the detergent contained in the dispenser 24 can be supplied to the washing chamber 11. After the preset main cleaning time has elapsed, the control unit 27 may drive the drain pump 78 to drain water from the sump 60.

Once the main washing cycle is complete, the rinsing cycle may begin.

When the rinsing cycle begins, the control unit 27 opens the water supply valve 72 to supply water to the sump 60. Water supplied to the sump 60 may be supplied to the pump housing 64. The control unit 27 may drive the heater 66 to heat the water in the sump 60 and the pump housing 64. The control unit 27 may heat the heater to heat the washing water to a preset rinsing temperature. The control unit 27 can drive the pump 63 to spray washing water into the washing room through the spray unit 50. The control unit 27 can supply rinse aid to the washing room through the dispenser 24. After the preset rinsing stroke time has elapsed, the control unit 27 may drive the drain pump 78 to drain water from the sump 60. The rinsing process may be performed multiple times.

Once the rinse cycle is complete, the steam cycle can begin depending on the course and option.

When the steam cycle begins, the control unit 27 opens the water supply valve 72 to supply water to the sump 60. The control unit 27 can drive the heater 66 to heat supplied water and generate steam. Alternatively, the water supply valve 72 is connected to a separate steam generator, and the steam generator can generate steam by heating supplied water. The generated steam may be sprayed into the washing room through the steam nozzle 57.

Once the rinse cycle and/or steam cycle is complete, the dry cycle may begin. Alternatively, the washing course may end without a drying cycle.

Referring to FIG. 4, the detergent box 4 may be placed on the first rack 31. The detergent box (4) can be coupled to the first rack (31).

The first rack 31 may include a plurality of wires arranged in a grid. The first rack 31 may include a plurality of wires extending in the depth direction of the washing room 11 and a plurality of wires extending in the width direction of the washing room 11 .

The first rack 31 may be provided with a storage space 310. The storage space 310 may be a space for storing dishes.

The storage space 310 may be a space surrounded by the plurality of wires. The storage space 310 may be an open space. The storage space 310 may be opened between a plurality of wires. The storage space 310 may be opened upward.

The first rack 31 may include a holder 318. Tableware can be placed on the holder 318.

Holders 318 may be provided in pairs. The holder 318 may be provided in multiple pairs.

The holder 318 may include a horizontally arranged base 3181 and a plurality of bars 3182 connected to the base 3181. A plurality of bars 3182 may be fixed to the base 3181. A plurality of bars 3182 connected to the base 3181 may be arranged side by side. A plurality of bars 3182 may be arranged in the longitudinal direction of the base 3181.

The base 3181 may be provided to be rotatable. The plurality of bars 3182 are fixed to the base 3181 and can rotate together with the base 3181.

The first rack 31 may be provided to be withdrawable from the washing room 11 .

For example, the first rack 31 may be movably supported on a rail provided inside the side wall 15 of the tub 10. The rails may be provided in pairs on both walls.

Alternatively, the first rack 31 may be movably mounted on the floor 12 of the washing room 11.

The first rack 31 may include rollers 319. The roller 319 may be rotatably provided. The rollers 319 may be provided in pairs on both sides in the width direction of the first rack 31. The rollers 319 may be provided in plural and arranged in the front-back direction (or the depth direction of the washing room, or the depth direction of the rack).

The roller 319 may be movably supported on the above-described rail or on the floor 12 of the washing room.

The first rack 31 may include a first wire 311 extending in a first direction (d1, see FIG. 5). The first direction d1 may be the width direction of the washing chamber 11. The first direction d1 may be the width direction of the detergent box 4.

The detergent box 4 can be coupled to the first wire 311.

The first rack 31 may include a second wire 312. The second wire 312 may include a portion 3121 (see FIG. 15 ) spaced apart from the first wire 311 .

The detergent box 4 can be coupled to the spaced apart portion 3121. The second holder 47 of the detergent box 4, which will be described later, can be coupled to the spaced portion 3121. The spaced apart portion 3121 may be referred to as a coupling portion 3121.

A detailed description of the coupling portion 3121 will be described later with reference to FIG. 15.

The second wire 312 may extend in the vertical direction. The second wire 312 may be bent backward. The second wire 312 may extend downward and rearward. The second wire 312 may extend rearward.

The second wire 312 may be provided in plural numbers. The plurality of second wires 312 may be arranged symmetrically with respect to the center line of the first rack 31.

The first rack 31 may further include an upper wire 314 disposed above the first wire 311. The upper wire 314 may include a bending part 315 bent upward.

The user can insert his hand into the bending part 315 and grasp the first rack 31 to remove the first rack 31 from the washing room 11.

The first rack 31 may include a handle 317 disposed above the first wire 311. The handle 317 may be located above the upper wire 314. The handle 317 may be placed on the upper side of the bending part 315.

The handle 317 may be arranged in parallel with the first wire 311. The handle 317 may be arranged parallel to the bending part 315.

The handle 317 may be provided on the upper rim 316, which will be described later. The handle 317 may be provided on the front portion of the upper rim 316.

The first rack 31 may include an upper rim 316. The upper rim 316 may be provided at the upper edge of the first rack 31.

The upper rim 316 may be disposed above the upper wire 314. The upper rim 316 may be coupled to the wire located at the uppermost side of the first rack 31.

Referring to FIG. 5, the detergent box 4 may include a basket 40 and holders 46 and 47.

The basket 40 may have a space to accommodate detergent. The space containing the detergent may be open upward. Through the open portion, the user can add detergent. The upper open portion may be referred to as the detergent inlet 48.

Basket 40 may include bottoms 42 and 43. A detailed description of the floors 42 and 43 will be described later with reference to FIG. 13.

Basket 40 may include a front wall 41. The front wall 41 may face forward. The front wall 41 may face the open front of the washing room. The front wall 41 may face the door 23 when the door 23 is closed. The front wall 41 may extend upward from the bottoms 42 and 43.

Basket 40 may include side walls 44 . The side wall 44 of the basket 40 may extend upward from the bottoms 42 and 43. The side wall 44 of the basket 40 may be connected to the front wall 41.

The side walls 44 of the basket 40 may be provided as a pair. The width of the basket 40 may be defined between a pair of side walls 42.

Basket 44 may include a rear wall 45. The rear wall 45 of the basket 40 may extend upward from the bottoms 42 and 43. The rear wall 45 of the basket 40 may face the front wall 41. The rear wall 45 of the basket 40 may be connected to the side wall 44.

The front wall 41, side wall 44, and rear wall 45 of the basket 40 are also referred to as the peripheral walls 41, 44, and 45 of the basket 40.

The detergent inlet 48 may be opened upward and forward.

The side wall 44 of the basket 40 may extend upward beyond the front wall 41. The top of the side wall 44 of the basket 40 may be located above the top of the front wall 41. The side wall of the basket 40 may extend upward beyond the first holder 46.

The top of the side wall 44 and the top of the rear wall 45 of the basket 40 may be located at the same height.

The detergent box 4 may include a first holder 46. The first holder 46 may protrude from the basket 40 . The first holder 46 may extend from the basket 40 .

The first holder 46 may be coupled to the first wire 311. The first holder 46 may be coupled to the first wire 311 so that the detergent box 4 can rotate around the first wire 311.

The first holder 46 may provide a groove 461 into which the first wire 311 is inserted. The groove 461 is also called the holder groove 461.

The holder groove 461 may be open in the direction d1 in which the first wire 311 extends. The holder groove 461 may be open in the first direction d1.

For example, the first wire 311 extends in the width direction of the washing chamber 11 (or the width direction of the first rack 31, or the width direction of the detergent box 4), and the holder groove 461 ) can be opened in the same direction.

The structure surrounding the holder groove 461, that is, the front wall 41, the extension portion 412, and the first holder 46, may have a hook shape. The first holder 46 is also called the first hook 46.

The holder groove 461 may be formed between the first holder 46 and the basket 40.

The first holder 46 and the basket 40 may cover the front, upper, and rear sides of the holder groove 461. For example, the first holder 46 is disposed in front of the holder groove 461, the front wall 41 is disposed in the rear of the holder groove 461, and the extension portion 412 described later is the holder groove ( 461) can be placed on the upper side.

The holder groove 461 may be opened downward. The detergent box 4 can be coupled to the first wire 311 from top to bottom. That is, the first wire 311 may be inserted from the bottom to the top of the holder groove 461.

The first holder 46 may be disposed ahead of the front wall 41. A holder groove 461 may be formed between the first holder 46 and the front wall 41. The basket 40 may be placed in the storage space 310 .

The first holder 46 may be disposed at a position corresponding to the front end of the side wall 44 in the front-back direction. The side wall of the basket 40 may extend upward beyond the first holder 46. The detergent inlet 48 may be opened upward and forward.

The detergent box 4 may include a second holder 47. The second holder 47 may be coupled to the second wire 312.

The second holder 47 may extend from the basket 40 . The second holder 47 may protrude from the basket 40 .

The second holder 47 may protrude from the side wall 44. The second holder 47 may protrude from the side wall 44 in the width direction of the detergent box 4. It may protrude outward from the side wall 44 of the detergent box 4.

The second holder 47 may extend parallel to the second direction d2 perpendicular to the first direction d1. The second holder 47 may extend parallel to the side wall 44.

The second holder 47 may extend forward. The second holder 47 may extend downward. The second holder 47 may extend forward and downward.

The second holder 47 may be coupled to the coupling portion 3121 of the second wire 312 to restrict the rotation of the detergent box 4.

Referring to FIG. 6, the first holder 46 of the detergent box 4 may be coupled to the first wire 311. The detergent inlet 48 may be placed on the upper side of the first holder 46. The detergent inlet 48 may be placed above the first wire 311.

The first rack 31 may further include an upper wire 314 disposed above the first wire 31. The upper wire 314 may be disposed above the first wire 311.

The detergent inlet 48 may be disposed between the first wire 311 and the upper wire 314.

The upper wire 314 may include a bending part 315 bent upward. A detergent box 4 may be placed below the bending part 315.

The detergent inlet 48 may be placed on the lower side of the bending part 315. The detergent inlet 48 may be disposed between the first wire 311 and the bending part 315.

The detergent inlet 48 may be opened upward and forward.

The upper wire 314 may be disposed on the lower side of the upper rim 316 (see FIG. 4). The bending part 315 may be disposed on the lower side of the handle 317.

The second wire 312 may be provided in plural numbers. The plurality of second wires 312 may be arranged symmetrically with respect to the center line of the first rack 31. For example, the second wire 312 may include a pair of second wires 312 that are symmetrical about the width direction center line.

The basket 40 may be disposed between the plurality of second wires 312. The basket 40 may be disposed between a pair of second wires 312 that are symmetrical to each other with respect to the center line in the width direction.

A plurality of second holders 47 may be provided. For example, the second holder 47 may be provided as a pair. A pair of second holders 47 may each protrude from a pair of side walls 44 .

The pair of second holders 47 may be coupled to the pair of second wires 312.

Referring to FIG. 7 , when the door 23 is closed, the inner panel 231 of the door 23 may provide the front surface of the washing room 11.

The handle 317 may include a front end portion 3171 facing the door 23. The front end portion 3171 may be located ahead of the first wire 311.

The basket 40 may be placed in the storage space 310 of the first rack 31.

The first holder 46 may be disposed ahead of the front wall 41. A holder groove 461 may be formed between the first holder 46 and the front wall 41.

The first holder 46 and the front wall 41 may face forward. The first holder 46 may face the door 23 when the door 23 is closed.

The first holder 46 may be located rearward of the front end 3171 of the handle 317.

The first rack 31 may be placed in the lower part of the washing room 11.

The inner panel 231 of the door 23 may have an inclined surface 232 at the bottom.

The second wire 312 may include an inclined portion 3122 extending in a downward direction toward the rear. The inclined portion 3122 may extend parallel to the inclined surface 232 of the door 23.

The basket 40 may include an inclined surface 43 extending in a downward direction toward the rear. The inclined surface 43 of the basket 40 may extend parallel to the inclined portion 3122 of the second wire 312. The inclined surface 43 of the basket 40 may be disposed on the same plane as the inclined portion 3122 of the second wire 312.

A hole 439 may be provided on the inclined surface 43 of the basket 40. The hole 439 is also called an inclined hole 439.

A steam nozzle 57 (see FIG. 3) may be placed on the inclined surface 232 of the door 23. When steam is sprayed from the steam nozzle 57, steam may flow into the basket 40 through the inclined hole 439. Through this, the basket 40 can be sterilized and cleaned.

Referring to FIG. 8, the first rack 31 is provided with a storage space 310 for storing dishes, and the detergent box 4 may be placed in the storage space 310.

The storage space 310 may be divided into a first area (S1), a second area (S2), and a third area (S3) in the front-to-back direction.

The first area S1 refers to an area located in front of the storage space 310. The detergent box 4 may be placed in the first area S1.

The second area S2 refers to an area located behind the first area S1. The above-described holder 318 (see FIG. 4) may be provided in the second area S2. Dishes may be stored in the stand 318 disposed in the second area S2.

The third area S3 refers to an area located behind the second area S2. The above-described holder 318 (see FIG. 4) may also be provided in the third area S3. Dishes may be stored in the stand 318 disposed in the third area S3.

The first area S1 may be defined as a space between the holder 318 and the first wire 311. The holder 318 may not be provided in the first area S1.

Even if the holder 318 is not provided in the first area S1, dishes can be stored.

The detergent box 4 is disposed in the storage space 310 and can come into contact with the dishes stored in the storage space 310.

In particular, dishes stored in the first area S1 and relatively large dishes stored in the second area S2 may contact the rear wall 45 of the detergent box 4.

Referring to FIG. 9, the detergent box 4 may further include a plurality of protrusions protruding rearward from the rear wall 45.

Through this, surface contact between the dishes and the detergent box 4 can be prevented.

As a result, it is possible to minimize moisture remaining in the area where the detergent box 4 and the dishes come into contact.

The basket 40 may include a hole 459 penetrating the rear wall 45. The hole 459 is also called the rear hole 459.

There may be a plurality of rear holes 459. A plurality of rear holes 459 may be arranged in the width direction of the detergent box 4. Additionally, the plurality of rear holes 459 may be arranged in the vertical direction.

A backbone 453 may be provided at the central portion in the width direction of the rear wall 45. The backbone 453 may have a structure corresponding to the closed portion 423 of the bottom surface 42, which will be described later. Backbone 453 may have the same width as closure 423.

The backbone 453 may extend in the vertical direction. The backbone 453 may have a width greater than the ribs between the plurality of rear holes 459. The backbone 453 may have a larger width than the rear hole 459.

Referring to FIGS. 9 and 10 , the rear wall 45 may include an upper portion 451 and a lower portion 452.

The lower side 452 of the rear wall 45 may face the front wall 41. The lower portion 452 of the rear wall 45 may face the front wall 41 and the inclined surface 43.

A rear hole 459 may be formed in the lower portion 452.

The upper part 451 may face the front opening of the detergent inlet 48. A hole may not be formed in the upper portion 451.

Referring to FIG. 10, the first holder 46 may extend in the width direction of the detergent box 4. The first holder 46 can connect both side walls 44.

The side wall 44 of the basket 40 may extend upward beyond the front wall 41. The side wall 44 of the basket 40 may extend upward beyond the first holder 46.

The detergent inlet 48 may be opened upward and forward.

On the slope (43)

The basket 40 may include a hole 439 penetrating the inclined surface 43. The hole 439 is also called an inclined hole 439.

A plurality of inclined holes 439 may be provided. A plurality of inclined holes 439 may be arranged in the width direction of the detergent box 4.

A closing portion 433 may be provided in the central portion of the inclined surface 43 in the width direction. The closure portion 433 is also called the breastbone 433 to distinguish it from the closure portion 423 of the bottom surface 42, which will be described later.

The breastbone 433 may be a structure corresponding to the closed portion 423 of the bottom surface 42. Breastbone 433 may have the same width as closure portion 423.

The breastbone 433 may extend in the vertical direction. The breastbone 433 may have a width greater than that of the ribs 438 between the plurality of inclined holes 439. The breastbone 433 may have a larger width than the plurality of inclined holes 439.

Referring to FIG. 11 , the first holder 46 may include a panel 462 . The panel 462 may extend in the width direction of the detergent box 4. Panel 462 may connect both side walls 44.

The basket 40 may further include an extension portion 412 extending from the front wall 41 . Alternatively, the front wall 41 may include a lower portion 411 extending upward from the bottoms 42 and 43 and an extension portion 412 extending from the lower portion.

The extension portion 412 may extend at an angle with respect to the lower portion 411 . The extension portion 412 may be inclined to extend upward and forward.

The first holder 46 may be connected to the extension portion 412. The first holder 46 may include a panel 462 connected to the extension portion 412. The panel 462 may extend in the width direction of the detergent box 4.

The panel 462 may include a lower portion 4621 extending downward from the extension portion 412 and an upper portion 4622 extending upward from the extension portion 412.

The first holder 46 may include a protrusion 463 that protrudes rearward from the panel 462. The distance between the protrusion 463 and the front wall 41 may be smaller than the diameter of the first wire 311.

The protrusions 463 may be provided in plural numbers. The plurality of protrusions 463 may be spaced apart in the width direction of the detergent box 4.

The extension part 412 may include a through hole 413 disposed at a position corresponding to the protrusion 463.

Accordingly, when injection molding the detergent box 4, the mold forming the upper part of the protrusion 463 can be pulled out upward.

The detergent box 4 may include raised portions 49: 491; 492; 493. The ridge 49 may protrude from the inner surface of the basket 40. The raised portion 49 may protrude inward from the central portion in the width direction of the basket.

The protrusion 49 includes a bottom protrusion 492 protruding from the bottom surface 42, an inclined protrusion 493 protruding from the inclined surface 43, and a front protrusion 491 protruding from the front wall 41. It can be included.

Accordingly, it is possible to prevent the problem of detergents such as tablets contained in the detergent box 4 sticking to the inner surface of the basket 40.

Referring to FIG. 12, the second holder 47 may protrude from the side wall 44 of the basket 40. The second holder 47 may extend in the second direction (d2, see FIG. 5).

The second holder 47 may extend in a direction intersecting the radius r of a circle with the center C located in the groove 461 of the first holder 46.

The second holder 47 may extend in a tangential direction t of a circle with the center C located in the groove 461 of the first holder 46.

Accordingly, the first wire 311 is inserted into the holder groove 461 between the first holder 46 and the first front wall 41, and the detergent box 4 is rotated to install the second holder 47. It can be coupled to the second wire 312.

The second holder 47 may extend in a direction perpendicular to the inclined surface 43 of the basket 40.

The second holder 47 may be located above the bottom surface 40 of the basket 40.

The second holder 47 may be located rearward of the front wall 41 of the basket 40.

The first holder 46 may be disposed at a position corresponding to the front end of the side wall 44 in the front-back direction.

Referring to FIG. 13, the basket 40 may include bottoms 42 and 43. The outer surfaces of the bottoms 42 and 43 may face downward.

A plurality of holes 429 and 439 may be formed in the bottoms 42 and 43 of the basket 40. The holes 429 and 439 may penetrate the bottoms 42 and 43.

The bottoms 42 and 43 of the basket 40 may include closures 423 and 433 disposed at the center of the bottoms 42 and 43.

Accordingly, the problem of excessive dissolution of detergent in the preliminary washing process performed before the main washing process can be prevented.

In addition, it is possible to prevent weld lines from being created when injection molding the detergent box (4). When injecting raw materials into a position corresponding to the rear or lower part of the detergent box 4, if the raw materials are supplied through the portions corresponding to the ribs 428 and 438 provided between the plurality of holes 429 and 439, The supply speed is slow and the material cools during the supply process, which may cause weld lines. Raw materials are quickly supplied through the areas corresponding to the closed portions 423 and 433, thereby preventing the problem of weld lines occurring.

The closed portions 423 and 433 may have a larger width than the holes 429 and 439 of the bottoms 42 and 43.

The bottoms 42 and 43 may include ribs 428 and 438 that partition the plurality of bottom holes 423 and 433. The ribs 428 and 438 may have a smaller width than the closure portions 423 and 433.

The bottoms 42 and 43 of the basket 40 may include a bottom surface 42 . Floors 42 and 43 may include an inclined surface 43 .

The hole 429 disposed on the bottom surface 42 is also called the bottom hole 429. There may be a plurality of bottom holes 429. A plurality of bottom holes 429 may be arranged in the width direction of the detergent box 4.

A closed portion 423 may be disposed in the central portion of the bottom surface 42 in the width direction. The closed portion 423 may have a larger width than the bottom hole 429. The closure portion 423 may have a width greater than that of the ribs 428 of the bottom surface 42.

The description of the inclined surface 43 has been described above with reference to FIG. 10, and detailed description will be omitted.

The first holder 46 includes a panel 462 extending in the width direction of the detergent box 4 and a protrusion 463 protruding from the panel 462.

A through hole 413 may be formed in the extension portion 412 of the front wall 41. The through hole 413 may be disposed at the same position as the protrusion 463 in the width direction of the detergent box 4.

The second holder 47 includes a shoulder 471 protruding from the basket 40, an arm 472 extending from the shoulder 471, a hand 473 protruding from the arm 472, and a hand 473. It may include a stopper 474 disposed between and the shoulder 471.

Referring to FIG. 14 , the second holder 47 may include a shoulder 471 protruding from the basket 40 . The shoulder 471 may protrude from the side wall 44 of the basket 40. The shoulder 471 may protrude from the side wall 44 in the width direction (or first direction d1) of the basket 40.

The second holder 47 may include a fillet 478 connecting the shoulder 471 and the side wall 44.

The second holder 47 may include an arm 472 extending from the shoulder 471. Arm 472 may extend in a second direction (d2, see FIG. 5). The arm 472 may extend in a direction intersecting the radius r of a circle with the center C located in the groove 461 of the first holder 46. The arm 472 may extend in the tangential direction (t) of a circle with the center (C) located in the groove 461 of the first holder 46.

The second holder 47 may include a hand 473 protruding from the arm 472. Hand 473 may be spaced apart from shoulder 471. The hand 473 may protrude in the inner width direction of the detergent box 4.

The second holder 47 may have a hook shape with the hand 473 protruding from the arm 472. The second holder 47 is also called the second hook 47.

The second wire 312 may be inserted between the arm 472 and the side wall 44 in the width direction. It can be inserted into the rear of the hand 473 of the second holder 47.

The second holder 47 may further include an inclined surface 4731 extending from the front end 4721 of the arm 472 to the hand 473.

When the second wire 312 is inserted into the second holder 47, the second holder 47 may be opened in a direction away from the second side wall 44. When the second wire 312 is located behind the hand 473, the second holder 47 can be restored.

If the length of the arm 472 is short, the stress acting on the arm 472 during the process of coupling and separating the second holder 47 from the second wire 312 is large. Accordingly, there is a risk that the arm 472 may be permanently deformed or damaged.

The arm 472 may extend longer than the diameter of the second wire 312.

Accordingly, the stress acting on the arm 472 can be reduced. Accordingly, the problem of permanent deformation or damage to the limb 472 can be prevented.

The distance between the shoulder 471 and the hand 473 may be larger than the diameter of the second wire 312.

If there is no arm 472 or other structure between the hand 473 and the shoulder 471, the second wire 312 may not be fixed.

The second holder 472 may include a stopper 474 protruding from the arm 472. The stopper 474 may be spaced apart from the hand 473. The stopper 474 may be placed between the hand 473 and the shoulder 471.

The second wire 317 may be inserted into the space 475 between the stopper 474 and the hand 473.

The space 475 is also called a grab 475. The second wire 312 may be coupled to the grab 475.

Through this, the second wire 312 can be fixed to the grab 475.

As described above, by making the arm 472 long, the stress acting on the arm 472 can be reduced compared to when the arm 472 is short.

Meanwhile, stress may be concentrated at the connection portion between the arm 472 and the shoulder 471.

The stopper 474 may extend toward the shoulder 471 and be connected to the shoulder 471 .

Through this, the connection portion between the arm 472 and the shoulder 472 can be strengthened.

When the stopper 474 is connected to the shoulder 471, a problem similar to that when the length of the arm 472 is short may occur in the portion of the arm 472 between the shoulder 471 and the hand 473.

The stopper 474 may have a width smaller than the width of the arm 472.

Accordingly, the problem of stress being concentrated in the front portion of the arm 472 and the connection portion between the arm 472 and the shoulder 471 can be resolved.

Referring to FIGS. 14 and 15 , the stopper 474 may extend at an angle with respect to the direction in which the arm 472 extends. The stopper 474 may extend at an angle with respect to the second direction d2 (see FIG. 5).

After coupling the first holder 46 to the first wire 311, the detergent box 4 is rotated around the first wire 311 to couple the second holder 47 to the second wire 312. You can. At this time, when the hand 473 contacts the second wire 312, it may contact the second wire 312 starting from the part closest to the first wire 311. When the detergent box 4 is further rotated after the hand 473 contacts the first wire 311, the part of the hand 473 close to the first wire 311 is pushed outward in the width direction and the second wire 312 ) may be coupled to the second holder 47.

The stopper 474 may extend in a direction away from the hole 461 of the first holder 46 as it moves away from the shoulder 471.

A space 476 may be formed between the stopper 474 and the shoulder 471. The space 476 is also called an armpit (476).

Therefore, in the process of coupling the second holder 47 and the second wire 312, the stress acting on the arm 472 can be distributed and the connection between the shoulder 471 and the arm 472 can be systematically strengthened. .

Referring to FIG. 15 , the second wire 312 may include a portion 3121 (see FIG. 15 ) spaced apart from the first wire 311 . A second holder 47 may be coupled to the spaced portion. The spaced apart portion 3121 may be referred to as a coupling portion 3121.

The coupling portion 3121 may be spaced apart from the first wire 311. The coupling portion 3121 may be spaced apart from the first wire 311 in a direction different from the first direction d1 in which the first wire 311 extends.

For example, the coupling portion 3121 may be spaced downward from the first wire 311. For example, the coupling portion 93121 may be spaced downward and rearward from the first wire 311.

The second wire 312 may extend in the vertical direction. The second wire 312 may be connected to the first wire 311 at a portion extending in the vertical direction.

The second wire 312 may be bent backward. The second wire 312 may be bent backward at the bottom of the vertically extending portion. The second wire 312 may be bent backward and downward at the bottom of the vertically extending portion.

The coupling portion 3121 may extend downward and rearward from the bottom of the upwardly extending portion.

The coupling portion 3121 may extend to intersect the second holder 47. The coupling portion 3121 may extend in a direction perpendicular to the second holder 47. The coupling portion 3121 may extend in a direction perpendicular to the second direction (d2, see FIG. 5).

The second wire 312 may include an inclined portion 3122 extending from the coupling portion 3121. The inclined portion 3122 may extend in the same direction as the coupling portion 3121.

Referring to FIG. 16, the second holder 47 may include a reinforcing rib 479 that protrudes from the shoulder 471 and is connected to the basket 40. The reinforcing rib 479 may be connected to the side wall 44.

The reinforcing rib 479 may protrude from the rear of the shoulder 471. It may protrude from the shoulder 471 in a direction opposite to the arm 472.

The second holder 47 may include a fillet 478 connecting the shoulder 471 and the side wall 44. Fillets 478 may be provided on the front and rear sides of the shoulder 471.

Referring to FIGS. 17 and 18 , the closing portions 423 and 433 may protrude upward from the ribs 428 and 438 in the space containing the detergent. The protruding portion is also called a ridge 49.

The detergent box 4 may include a raised portion 49. The ridge 49 may protrude from the inner surface of the basket 40. The raised portion 49 may protrude inward from the central portion in the width direction of the basket 40.

The ridge 49 may include a bottom ridge 492 protruding from the bottom surface 42 . Bottom ridge 492 may protrude from closure 423 .

The protrusion 49 may include an inclined protrusion 493 protruding from the inclined surface 43 . Oblique ridge 493 may protrude from the breastbone 433. Slanted ridge 493 may extend from bottom ridge 492.

The ridge 49 may include a front ridge 491 protruding from the front wall 41 . Front ridge 491 may extend from inclined ridge 493.

Accordingly, it is possible to prevent the problem of detergents such as tablets contained in the detergent box 4 sticking to the inner surface of the basket 40.

A through hole 413 penetrating the extension 412 of the front wall 41 may be disposed at the same position as the protrusion 463 in the width direction of the detergent box 4.

1 to 18, a dishwasher according to an embodiment of the present disclosure includes: a tub 10 providing a washing chamber 11; A rack 31 disposed in the washing room, comprising a first wire 311 extending in a first direction d1 and spaced apart from the first wire 311 in a direction different from the first direction d1. a rack 31 including a second wire 312 having a coupling portion 1321; And it includes a detergent box (4) coupled to the rack (31).

The detergent box 4 includes: a basket 40 having a space for receiving detergent; a first holder 46 that protrudes from the basket 40, is open in the first direction d1, and provides a groove 461 into which the first wire 311 is inserted; And it includes a second holder that protrudes from the basket 40 and provides a groove 475 into which the coupling portion 3121 of the second wire 312 is inserted.

The first holder 46 may be coupled to the first wire 311 so that the detergent box 4 can rotate around the first wire 311. The second holder 47 may be coupled to the coupling portion 3121 of the second wire 312 to restrict the rotation of the detergent box 4.

The second holder 47 may extend in a direction intersecting the radius r of a circle with the center C located in the groove 461 of the first holder 46.

The second holder 47 may extend in a tangential direction (t) of a circle with the center (C) located in the groove 461 of the first holder 46.

The second holder 47 may extend parallel to the second direction d2 perpendicular to the first direction d1.

The second holder 47 includes: a shoulder 471 protruding from the basket 40; an arm 472 extending from the shoulder 471 in the second direction (d2); It may include a hand 473 that protrudes from the arm 472 and is spaced apart from the shoulder 471 in the second direction d2. The distance between the shoulder 471 and the hand 473 may be larger than the diameter of the second wire 312.

The second holder 472 may further include a stopper 474 that protrudes from the arm 472 and is spaced apart from the hand 473.

The second wire 312 may be inserted into the space 475 between the stopper 474 and the hand 473.

The stopper 474 may extend toward the shoulder 471 and be connected to the shoulder 471 .

The stopper 474 may have a width smaller than the width of the arm 472.

The stopper 474 may extend at an angle with respect to the second direction d2.

The stopper 474 may extend in a direction away from the hole 461 of the first holder 46 as it moves away from the shoulder 471.

It may further include a reinforcing rib 479 that protrudes from the shoulder 471 in a direction opposite to the arm 472 and is connected to the basket 40.

The second holder 47 may further include an inclined surface 4731 extending from the front end 4721 of the arm 472 to the hand 473.

A dishwasher according to an embodiment of the present disclosure includes: a tub 10 providing a washing chamber 11 open to the front; A door 23 rotatably coupled to the front of the tub 10 to open and close the washing room 11; a rack 31 disposed in the washing room 11, having an open storage space 310 for storing dishes, and including a first wire 311 extending horizontally; And a detergent box (4) including a basket (40) having a detergent inlet (48) open upward, and a first holder (46) extending from the basket (40) and coupled to the first wire (311). Includes.

The basket 40 has: a bottom 42, 43; a front wall (41) extending upward from the bottom (42, 43); It includes a side wall 44 extending upward from the bottoms 42 and 43 and connected to the front wall 41.

The first holder 46 is disposed ahead of the front wall 41. The basket 40 is disposed in the storage space 310.

The first holder 46 may be disposed at a position corresponding to the front end of the side wall 44 in the front-back direction.

The rack 31 may further include a handle 317 disposed on an upper side of the first wire 311 and parallel to the first wire 311 .

The first holder 46 may be located rearward of the handle 317.

The door 23 may be rotatably coupled to the front lower portion of the tub 10. The rack 31 may be placed at the bottom of the washing room 11. The bottoms 42 and 43 of the basket 40 may include a straight bottom surface 42 and an inclined surface 43 that extends obliquely from the bottom surface 42 and is connected to the front wall 41. .

The side wall 44 of the basket 40 may extend upward beyond the front wall 41 and the first holder 46. The detergent inlet 48 may be opened upward and forward.

The rack 31 may further include an upper wire 314 disposed above the first wire 31. The upper wire 314 may include a bending part 315 bent upward. The detergent box 4 may be placed below the bending part 315.

It may further include an extension portion 412 extending from the front wall 41.

The first holder 46 includes: a panel 462 connected to the extension portion 412 and extending in the width direction of the detergent box 4; It may also include a protrusion 463 protruding rearward from the panel 462.

The extension part 412 may include a through hole 413 disposed at a position corresponding to the protrusion 463.

The basket 40 is connected to the side wall 44 and may further include a rear wall 45 facing the front wall 41.

The detergent box 4 may further include a plurality of protrusions protruding rearward from the rear wall 45.

A dishwasher according to an embodiment of the present disclosure includes: a tub 10 providing a washing chamber 11; A rack (31) disposed in the washing room (11); It also includes a detergent box (4) that includes a basket (40) that provides a space to accommodate detergent and is coupled to the rack (31).

The bottom (42, 43) of the basket (40) includes: a closure portion (423, 433) disposed at the center of the bottom (42, 43); a plurality of bottom holes (429, 439) disposed on one side of the closure portions (423, 433); It partitions the plurality of bottom holes 429 and 439 and includes ribs 428 and 438 having a smaller width than the closure portions 423 and 433.

The closing portion 423 may protrude upward from the rib 428 in the space containing the detergent.

The detergent box 4 according to an embodiment of the present disclosure includes: a bottom 42, 43 having a plurality of holes 429, 439; Circumferential walls (41, 44, 45) extending upward from the bottom (42, 43) to provide a space for accommodating detergent; And it includes closing portions 423 and 433 disposed at the center of the floor.

The plurality of holes 429 and 439 are disposed on one side and the other side of the closure portions 423 and 433.

The bottoms 42 and 43 include ribs 428 and 438 that partition a plurality of holes 429 and 439 disposed on one side of the closed portion.

The closing portions 423 and 433 protrude upward from the ribs 428 and 438 in the space containing the detergent.

The detergent box 4 may further include holders 46 and 47 that protrude from the peripheral walls 41, 44 and 45 and are configured to be coupled to the rack 30 of the dishwasher.

Any or other embodiments of the present disclosure described above are not exclusive or distinct from each other. In certain embodiments or other embodiments of the present disclosure described above, each configuration or function may be used in combination or combined.

For example, this means that configuration A described in a particular embodiment and/or drawing may be combined with configuration B described in other embodiments and/or drawings. In other words, even if the combination between components is not directly explained, it means that combination is possible, except in cases where it is explained that combination is impossible.

The above detailed description should not be construed as restrictive in any respect and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims (15)

1. a tub providing a wash room;

   A rack disposed in the washing room; and

   Includes a detergent box coupled to the rack,

   The rack:

   a first wire extending in a first direction; and

   and a second wire having a coupling portion spaced apart from the first wire in a direction different from the first direction.

   The detergent box:

   A basket having a space for receiving detergent;

   a first holder protruding from the basket, open in the first direction, and providing a groove into which the first wire is inserted; and

   A dishwasher comprising a second holder that protrudes from the basket and provides a groove into which the coupling portion of the second wire is inserted.
2. According to claim 1,

   The first holder is coupled to the first wire so that the detergent box can rotate around the first wire,

   The second holder is coupled to the coupling portion of the second wire to restrict rotation of the detergent box.
3. According to claim 1,

   The second holder extends in a direction intersecting the radius of a circle with its center located in the groove of the first holder.
4. According to clause 3,

   A dishwasher wherein the second holder extends in a tangential direction of a circle with its center located in the groove of the first holder.
5. According to claim 1,

   A dishwasher wherein the second holder extends parallel to a second direction perpendicular to the first direction.
6. According to clause 5,

   The second holder:

   a shoulder protruding from the basket;

   an arm extending from the shoulder in the second direction;

   a hand protruding from the arm and spaced apart from the shoulder in the second direction;

   A dishwasher wherein the distance between the shoulder and the hand is greater than the diameter of the second wire.
7. According to clause 6,

   The second holder further includes a stopper that protrudes from the arm and is spaced apart from the hand.
8. According to clause 7,

   A dishwasher wherein the second wire is inserted into the space between the stopper and the hand.
9. According to clause 7,

   The stopper extends toward the shoulder and is connected to the shoulder.
10. According to clause 6,

    A dishwasher further comprising a reinforcing rib that protrudes from the shoulder in a direction opposite to the arm and is connected to the basket.
11. According to clause 6,

    The second holder further includes an inclined surface extending from the front end of the arm to the hand.
12. According to claim 1,

    It further includes a door rotatably coupled to the front of the tub to open and close the washing room,

    The rack is open to the top and has a storage space for storing dishes,

    The first wire extends horizontally,

    The basket is:

    floor;

    a front wall extending upward from the bottom;

    A side wall extending upward from the bottom and connected to the front wall,

    The first holder is disposed ahead of the front wall,

    The basket is a dishwasher disposed in the storage space.
13. According to claim 12,

    The rack further includes a handle disposed above the first wire and in parallel with the first wire,

    The handle includes a front end located ahead of the first wire,

    The first holder is a dishwasher located behind the front end of the handle.
14. According to claim 12,

    The door is rotatably coupled to the front lower part of the tub,

    The rack is disposed at the bottom of the washing room,

    The bottom of the basket is:

    horizontal floor surface;

    A dishwasher comprising an inclined surface obliquely extending from the bottom surface and connected to the front wall.
15. According to claim 12,

    Further comprising an extension extending from the front wall,

    The first holder:

    a panel connected to the extension part and extending in the width direction of the detergent box; and

    It includes a protrusion protruding rearward from the panel,

    A dishwasher wherein the extension part includes a through hole disposed at a position corresponding to the protrusion.

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