dishwasher

Abstract

Disclosed is a dishwasher. The dishwasher of the present disclosure includes: a tub which provides a washing chamber; a rack which is disposed in the washing chamber; and a detergent box which is coupled to the rack, wherein the rack includes: a first wire which extends in a first direction; and a second wire which has a coupling portion that is spaced apart from the first wire in a direction different from the first direction and, wherein the detergent box includes; basket which has a space for accommodating a detergent; a first holder that protrudes from the basket, and provides a groove which is open in the first direction, and 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

TECHNICAL FIELD

[0001] The present disclosure relates to a dishwasher, and more particularly, to a dishwasher including a detergent compartment.BACKGROUND ART

[0002] A dishwasher is a home appliance that sprays washing water to remove food residue and other contaminants from dishes, cutlery, etc. (hereinafter, “washing objects”) and washes the washing objects.

[0003] A rack on which washing objects are disposed is disposed in a washing space inside the dishwasher, and washing water is sprayed from a nozzle disposed below and / or above the rack. The nozzle is provided on a rotating spray arm so that washing water can be sprayed over a wide area.

[0004] The dishwasher sprays high-pressure washing water through the nozzle to improve the cleaning power. In addition, when detergent is supplied to the dishwasher, the cleaning power is improved.

[0005] The dishwasher is provided with a detergent receiving means to supply the detergent. The detergent receiving means may be provided on a door. For example, the detergent receiving means may be provided on an inner panel of the door facing the washing space.

[0006] Alternatively, the detergent receiving means may be disposed in the washing space. For example, the detergent receiving means may be mounted on a rack.

[0007] Hereinafter, the detergent receiving means provided on the door is referred to as a ‘dispenser’, and the detergent receiving means disposed in the washing space is referred to as a ‘detergent box’.

[0008] EP0691102A1 discloses a dispensing device that can be applied to a washing machine or a dishwasher. The device includes a container that receives detergent and a fastening means that fastens 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 internal structure of the dishwasher can be fastened to the groove.

[0009] However, the structure of the fastening means disclosed in the device is a structure in which the container can be two-dimensionally constrained to the internal structure of the dishwasher. That is, the device has a structure that is not completely constrained to the internal structure and can rotate.

[0010] Accordingly, when high-pressure washing water is sprayed, there was a problem in that the device moves and collides with the internal structure to cause damage and noise.DISCLOSURETechnical Problem

[0011] An object of the present disclosure intends to solve the above-mentioned problems and other problems.

[0012] Another object may be to provide a detergent box that is coupled to a rack and a dishwasher including the same.

[0013] Another object may be to provide a dishwasher in which a detergent box is detachably coupled to a rack.

[0014] Another object may be to provide a dishwasher in which a dispenser provided on a door and a detergent box coupled to a rack can be selectively used depending on a user's preference.

[0015] Another object may be to provide a dishwasher in which a detergent box is coupled to a rack and does not rotate.

[0016] Another object may be to provide a dishwasher in which a detergent box can be easily mounted on a rack.

[0017] Another object may be to provide a dishwasher in which a holder that fastens a detergent box to a rack is prevented from being damaged.

[0018] Another object may be to provide a dishwasher in which the clearance between a detergent box and a rack is minimized.

[0019] Another object may be to provide a dishwasher that reduces a gap between a tub and a detergent box.

[0020] Another object may be to provide a dishwasher in which a detergent box does not interfere with a door or a tub.

[0021] Another object may be to provide a dishwasher including a detergent box for easy loading of detergent.

[0022] Another object may be to provide a dishwasher including a detergent box that can be manufactured by injection molding.

[0023] Another object may be to provide a dishwasher that eliminates the problem of weld lines when a detergent box is injection molded.

[0024] Another object may be to provide a dishwasher that prevents the problem of over-dissolving detergent in a pre-wash cycle that precedes a main wash cycle.

[0025] Another object may be to provide a dishwasher that prevents a detergent from sticking to a detergent box.

[0026] Another object may be to provide a dishwasher that reduces contact between a detergent box and dishes, and does not leave moisture on the surface of a detergent box after washing.

[0027] The tasks Of the present invention are not limited to the tasks mentioned above, and other tasks that are not mentioned will be clearly understood by those skilled in the art from the description below.Technical Solution

[0028] According to an 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.

[0029] The rack includes a first wire and a second wire. The first wire may extend in a first direction.

[0030] 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.

[0031] The detergent box includes a basket, a first holder, and a second holder.

[0032] The basket has a space for accommodating detergent. The basket has an opening into which the detergent is inserted. The opening may be opened upward. The opening may be opened upwardly and forwardly.

[0033] 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 passes through the groove.

[0034] The first holder may be coupled to the first wire so that the detergent box can be rotated around the first wire.

[0035] The second holder protrudes from the basket. The second holder provides a groove into which the coupling portion of the second wire is inserted.

[0036] The second holder may be coupled to the coupling portion of the second wire to restrict the rotation of the basket.

[0037] The second holder extends in a direction intersecting with a radius of a circle having a center positioned in the groove of the first holder.

[0038] The second holder extends in a tangential direction of the circle having a center positioned in the groove of the first holder.

[0039] The second holder extends parallel to a second direction perpendicular to the first direction.

[0040] The second holder includes: a shoulder which protrudes from the basket; an arm which extends from the shoulder in the second direction; and a hand which protrudes from the arm, is and spaced apart from the shoulder in the second direction, in which a distance between the shoulder and the hand is greater than diameter of the second wire.

[0041] The second holder further includes a stopper that protrudes from the arm and is spaced apart from the hand.

[0042] The second wire may be inserted into a space between the stopper and the hand.

[0043] The stopper may extend toward the shoulder and be connected to the shoulder.

[0044] The stopper may have a width smaller than the width of the arm.

[0045] The stopper may extend so as to be inclined with respect to the second direction.

[0046] The stopper may extend in a direction away from the hole of the first holder as it moves away from the shoulder.

[0047] The dishwasher further includes a reinforcing rib which protrudes from the shoulder in a direction opposite to the arm and is connected to the basket.

[0048] The second holder further includes an inclined surface extending from a front end of the arm to the hand.

[0049] According to an aspect of the present disclosure, a dishwasher may include a tub providing a washing room, a door for opening and closing the washing room, a rack disposed in the washing room, and a detergent box.

[0050] The door may be rotatably coupled to the front of the tub.

[0051] 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.

[0052] The detergent box may include a basket and a first holder.

[0053] The basket may have a detergent inlet. The detergent inlet may be opened upward.

[0054] The first holder may extend from the basket. The first holder may be coupled to the first wire.

[0055] The basket may include a bottom, a front wall and a side wall that extend from the bottom. The side wall may be connected to the front wall.

[0056] The basket may be disposed in the storage space.

[0057] The first holder may be disposed at a position corresponding to the front end of the side wall in the front-rear direction.

[0058] The rack may further include a handle disposed parallel to the first wire above the first wire.

[0059] The first holder may be positioned rearward of the handle.

[0060] The door may be rotatably coupled to the front lower portion of the tub.

[0061] The rack may be disposed at the lower portion of the washing room.

[0062] The basket may include an inclined surface connecting the front wall at the bottom.

[0063] The side wall of the basket may extend upwardly than the front wall and the first holder.

[0064] The detergent inlet may be opened upwardly and forwardly.

[0065] The rack may further include an upper wire disposed above the first wire.

[0066] The upper wire may include a bending part that is bent upwardly.

[0067] The detergent box may be disposed below the bending part.

[0068] It may further include an extension portion that extends from the front wall.

[0069] The first holder may include: a panel that is connected to the extension portion and extends in the width direction of the detergent box; and a protrusion portion that protrudes rearwardly from the panel.

[0070] The extension portion may include a through hole disposed at a position corresponding to the protrusion portion.

[0071] The basket may further include a rear wall that is connected to the side wall and faces the front wall.

[0072] The detergent box may further include a. plurality of protrusions that protrude rearwardly from the rear wall.

[0073] The dishwasher may include a door for opening and closing the washing room. The door may be rotatably coupled to the tub.

[0074] The dishwasher may include a dispenser provided on the door. The dispenser may contain detergent.

[0075] According to an aspect of the present disclosure, the dishwasher includes a tub providing a washing room, a rack disposed in the washing room, and a detergent box coupled to the rack.

[0076] The detergent box includes a basket providing a space for accommodating detergent.

[0077] The bottom of the basket includes: a closing portion disposed at the center of the bottom; a plurality of bottom holes disposed on one side of the closing portion; and a rib partitioning the plurality of bottom holes.

[0078] The rib may have a smaller width than the closing portion.

[0079] The closing portion may protrude upward than the rib in the space for accommodating the detergent.

[0080] According to an aspect of the present disclosure, the detergent box includes a bottom and a peripheral wall,

[0081] The peripheral wall extends upward from the bottom to provide a space for accommodating detergent.

[0082] The bottom has a plurality of holes.

[0083] The closed portion is disposed in the center of the bottom.

[0084] The plurality of holes are disposed on one side and the other side of the closed portion. The hole disposed on one side of the closed portion are provided in plurality. The hole disposed on the other side of the closed portion may be provided in plurality.

[0085] The bottom includes a rib that divides the plurality of holes disposed on one side of the closed portion. The bottom may include a rib that divides a plurality of holes disposed on the other side of the closed portion.

[0086] The closed portion may protrude upward than the rib in the space for accommodating the detergent.

[0087] The detergent box may further include a holder that protrudes from the peripheral wall and is configured to be coupled to the rack of the dishwasher.

[0088] Specific details Of other embodiments are included in the detailed description and drawings.Advantageous Effects

[0089] According to at least one of the embodiments of the present disclosure, the detergent box coupled to the rack and the dishwasher including the same can be provided.

[0090] According to at least one of the embodiments of the present disclosure, the dishwasher in which the detergent box is detachably coupled to the rack can be provided.

[0091] According to at least one of the embodiments of the present disclosure, the dishwasher in which the dispenser provided on the door and the detergent box coupled to the rack can be selectively used depending on the user's preference can be provided.

[0092] According to at least one of the embodiments of the present disclosure, the dishwasher in which the detergent box includes the first holder and the second holder, so that the detergent box is coupled to the rack and does not rotate can be provided.

[0093] According to at least one of the embodiments of the present disclosure, the dishwasher in which the first holder is rotatably coupled to the first wire, so that the detergent box can be easily mounted on the rack can be provided.

[0094] According to at least one of the embodiments of the present disclosure, it is possible to provide the dishwasher in which 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, the stopper connected to the shoulder, and the reinforcing rib connecting the shoulder and the basket, thereby preventing damage to the holder that fastens the detergent box to the rack.

[0095] According to at least one of the embodiments of the present disclosure, the dishwasher in which an arm of the second holder is longer than the diameter of the wire of the rack, but has the stopper to minimize the clearance between the detergent box and the rack can be provided.

[0096] According to at least one of the embodiments of the present disclosure, the dishwasher in which w the gap between the tub and the detergent box is reduced through the structure of the first holder and the basket can be provided.

[0097] According to at least one of the embodiments of the present disclosure, the dishwasher in which the basket is disposed in the storage space of the rack so that the detergent box does not interfere with the door or the tub can be provided.

[0098] According to at least one of the embodiments of the present disclosure, the dishwasher including the detergent box having the detergent inlet that is opened not only upward but also forward to facilitate the loading of detergent can be provided.

[0099] According to at least one of the embodiments of the present disclosure, it is possible to provide the dishwasher including the detergent box that can be manufactured by injection molding by having an extension portion, which connects the first holder and the front wall, that has the through hole at the position corresponding to the protrusion of the first holder.

[0100] According to at least one of the embodiments of the present disclosure, the dishwasher having the closed portion that solves the problem of the weld lines when the detergent box is injection molded can be provided.

[0101] According to at least one of the embodiments of the present disclosure, the dishwasher having the closed portion that prevents excessive dissolution of detergent in the pre-washing cycle that precedes the main washing cycle can be provided.

[0102] According to at least one of the embodiments of the present disclosure, the dishwasher that prevents the problem of detergent sticking to the detergent box by means of the raised portion protruding upward from the closed portion can be provided.

[0103] According to at least one of the embodiments of the present disclosure, the dishwasher that reduces contact between the detergent box and dishes by providing the protrusion protruding from the rear wall of the basket, and does not leave moisture on the surface of the detergent box after washing can be provided.DESCRIPTION OF DRAWINGS

[0104] FIG. 1 is a perspective view of a dishwasher according to an embodiment of the present disclosure.

[0105] FIG. 2 is a perspective view showing a state in which a door of a dishwasher is opened according to an embodiment of the present disclosure.

[0106] FIG. 3 is a schematic diagram showing the interior of a dishwasher according to an embodiment of the present disclosure.

[0107] FIG. 4 is a perspective view of a first rack and a detergent box of a dishwasher according to an embodiment of the present disclosure.

[0108] FIG. 5 is a perspective view of the detergent box shown in FIG. 4.

[0109] FIG. 6 is a front view showing a state in which the first rack and the detergent box shown in FIG. 4 are coupled.

[0110] FIG. 7 is a cross-sectional view of the first rack and the detergent box shown in FIG. 6 and a schematic diagram of a door.

[0111] FIG. 8 is a schematic diagram of a first rack on which a washing object is placed.

[0112] FIG. 9 is a rear view of the detergent box shown in FIG. 5.

[0113] FIG. 10 is a front view of the detergent box shown in FIG. 5.

[0114] FIG. 11 is a cross-sectional perspective view of the detergent box shown in FIG. 10.

[0115] FIG. 12 is a side view of the detergent box shown in FIG. 5.

[0116] FIG. 13 is a bottom view of the detergent box shown in FIG. 5.

[0117] FIG. 14 is a cross-sectional view the detergent box shown in FIG. 9.

[0118] FIG. 15 is a cross-sectional view of the first rack and detergent box shown in FIG. 6.

[0119] FIG. 16 is a rear perspective view of a second holder of the detergent box shown in FIG. 5.

[0120] FIG. 17 is a plan view of the detergent box shown in FIG. 5.

[0121] FIG. 18 is a cross-sectional view of the detergent box shown in FIG. 17.MODE FOR INVENTION

[0122] Description will now be given in detail according to exemplary embodiments disclosed herein, with reference to the accompanying drawings. For the sake of brief description with reference to the drawings, the same or equivalent components may be denoted by the same reference numbers, and description thereof will not be repeated.

[0123] In general, suffixes such as “module” and “unit” may be used to refer to elements or components. Use of such suffixes herein is merely intended to facilitate description of the specification, and the suffixes do not have any special meaning or function.

[0124] In the present disclosure, that which is well known to one of ordinary skill in the relevant art has generally been omitted for the sake of brevity. The accompanying drawings are used to assist in easy understanding of various technical features and it should be understood that the embodiments presented herein are not limited by the accompanying drawings. As such, the present disclosure should be construed to extend to any alterations, equivalents and substitutes in addition to those which are particularly set out in the accompanying drawings.

[0125] It will be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms, These terms are only used to distinguish one element from another.

[0126] It will be understood that when an element is referred to as being “connected with” another element, there may be intervening elements present. In contrast, it will be understood that when an element is referred to as being “directly connected with” another element, there are no intervening elements present.

[0127] A singular representation may include a plural representation unless context clearly indicates otherwise.

[0128] Referring to FIG. 1, a dishwasher includes a tub 10. The tub 10 may provide a washing room 11. The washing room 11 may be provided inside the tub 10.

[0129] The tub 10 may include a bottom 12 (see FIG. 3) that provides a bottom surface of the washing room 11.

[0130] The tub 10 may include a side wall 15 that is connected to the bottom 12 and extends upward. The side walls 15 may be provided in pairs. The pair of side walls 15 may be spaced apart from each other. The direction in which the pair of side walls 1 are spaced apart may be referred to as the width direction of the washing room 11.

[0131] The tub 10 may include an upper surface 14 that provides a ceiling of the washing room 11. The upper surface 14 may be connected to the side walls. The upper surface 14 may connect the pair of side walls.

[0132] The tub 10 may include a rear wall 16 (see FIG. 3) that is connected to the bottom 12 and extends upward.

[0133] The tub 10 may have a hexahedral shape with one side open. The front of the tub 10 may be open.

[0134] The washing room 11 may be opened in a forward direction (see FIG. 2). The direction (i.e., the front-rear direction) toward the rear wall from the opening of the washing room 11 may be referred to as the depth direction of the washing room 11.

[0135] The dishwasher may include a door 23 for opening and closing the washing room 11. The door 23 may be provided at the front of the tub 10. The door 23 may be rotatably coupled to the front of the tub 10.

[0136] The lower portion of the door 23 may be coupled to the tub 10. The door 23 may be hinged to the front lower portion of the tub 10. The door 23 may be opened so that the upper portion of the door 23 faces forward (see FIG. 2).

[0137] The door 23 may include a door handle 235. The door handle 235 may be provided on the upper portion of the door 23.

[0138] 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 (the width direction of the washing room).

[0139] The dishwasher may include a base 25. The base 25 may provide a bottom surface of the dishwasher.

[0140] 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 of the tub 10 and the base 25. A PCB 27 (or controller), a sump 60, a pump 63, etc., which will be described later may be disposed in the space. Hereinafter, the space 26 is referred to as a machine room 26.

[0141] An interface 28 may be provided on the upper portion of the door 23. The interface 28 may be disposed on the upper surface of the door.

[0142] The interface 28 may receive a command from a user. The interface 28 may provide a user with information related to the dishwasher.

[0143] For example, a user may input a command for a washing cycle or an option through the interface 28. For example, the interface 28 may display information related to a washing cycle or an option.

[0144] The controller 27 may control the dishwasher. The controller 27 may receive a command from a user through the interface 28. The controller 27 may provide information related to the dishwasher to a user through the interface 28.

[0145] Hereinafter, the following configurations may be controlled by the controller 27.

[0146] Referring to FIG. 2, the dishwasher may further include a casing 21. The casing 21 may be disposed on the outside of the tub 10.

[0147] 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.

[0148] As described above, the washing room 11 is opened in a forward direction, and the door 23 may open and close the washing room 11.

[0149] The dishwasher may include a rack 30 disposed in the washing room 11. Washing objects, such as dishes, cutlery, and / or cooking utensils, may be placed on the rack 30.

[0150] The rack 30 may include a first rack 31. The first rack 31 may be disposed in the lower portion of the washing room 11. The first rack 31 may be disposed on the bottom 12 of the washing room. Alternatively, the first rack 31 may be disposed above the bottom 12.

[0151] 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 disposed may be adjusted.

[0152] The dishwasher may include a spray unit 50. The spray unit 50 may be disposed below the rack 30. The spray unit 50 may spray the washing water upward.

[0153] The spray unit 50 may include a first spray arm 51. The first spray arm 51 may be disposed below the first rack 31.

[0154] The spray unit 50 may include a second spray arm 52. The second spray arm 52 may be disposed below the second rack 32.

[0155] The door 23 may be rotatably coupled to the front lower portion of the tub 10.

[0156] The door 23 may include a door cover 233. The door cover 233 may face downward when the door 23 is open.

[0157] 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 washing object on the rack, water falling from the washing object or the rack may fall on the inner panel 231.

[0158] 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.

[0159] The dishwasher may include a dispenser 24. The dispenser 24 may be provided on the inner panel 231.

[0160] The rack 30 may be provided to be movable in the depth direction of the washing room 11. The rack 30 may be slidable. The rack 30 may be pulled out in a forward direction from the washing room 11. The rack 30 may be brought in rearwardly and disposed in the washing room 11.

[0161] The first rack 31 may be slidably supported on the side wall 15 The first rack 31 may be slidably supported on a rail provided on the side wall 15.

[0162] The height of the position where the second rack 32 is disposed can be adjusted, For example, a plurality of rails supporting the second rack 32 can be provided, and the plurality of rails may be disposed at different heights.

[0163] The rack 30 may include a third rack33. The third rack 33 may be disposed above the first rack 31. The third rack 33 may be disposed above the second rack 32. The third rack 33 may be disposed at the uppermost side of the plurality of racks 30.

[0164] 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.

[0165] The third rack 33 may have a lower height between the upper end and the lower end in comparison with the first and second racks 33.

[0166] The third rack 33 may be configured to hold cutlery and / or cooking utensils.

[0167] The spray unit 50 may include a nozzle 513, 523, 53 (see FIG. 3). The nozzle 513, 523, 53 may spray washing water.

[0168] The spray unit 50 may be provided to be rotatable.

[0169] The first spray arm 51 may be provided on the bottom 12. The first spray arm 51 may be disposed below the first rack 31. The first spray arm 51 may spray washing water toward the first rack 31.

[0170] The first spray 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.

[0171] The first spray arm 51 may be provided to be rotatable. The first spray arm 51 may be rotated by a motor. Alternatively, the washing water may be rotated by a counterforce of the force sprayed from the first nozzle 513.

[0172] 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.

[0173] The second spray 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.

[0174] The second spray arm 52 may be provided to be rotatable. Washing water may be rotated by the counterforce of the force sprayed from the second nozzle 523. Alternatively, the second spray arm 52 may be rotated by a motor.

[0175] The spray unit 50 may include a top nozzle 53. The top nozzle 53 may be disposed above the rack 30. The top nozzle 53 may be provided on the ceiling 14 of the washing room 11. The top nozzle 53 may spray washing water downward. The top nozzle 53 may spray washing water toward the rack 30. The top nozzle 53 may spray washing water toward the third rack 33.

[0176] The door 23 may include a door cover 233. The door cover 233 may face forward when the door 23 closes the washing room 11. When the door 23 closes the washing room 11, the door cover 233 may be exposed to the outside.

[0177] The door 23 may include an inner panel 231. When the door 23 closes the washing room 11, the inner panel 231 may face the washing room 11. When 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. The dispenser 24 may accommodate detergent. The dispenser 24 may accommodate tablet-type detergent. Alternatively, the dispenser may accommodate powdered detergent.

[0178] Meanwhile, some of the nozzles 513, 523, 53 of the spray unit 50 may be directed toward the dispenser 24 provided on the door 23. In particular, the outermost nozzle 523 of the plurality of nozzles provided on the second spray arm 52 may spray washing water to the dispenser 24 depending on the rotational position of the second spray arm 52.

[0179] When the detergent is supplied through the dispenser 24 of the door 23, the washing water is sprayed onto the tablet detergent inside the dispenser 24, so that the tablet detergent can melt or descend to the inside of the tub 10, i.e., the washing room 11, and melt. Depending on the convenience and preference for each user, it may be preferred to put the tablet detergent in a separate detergent box connected to the rack rather than put the detergent in the door dispenser.

[0180] Alternately, depending on the detergent type or the condition and environment of washing water for each house, there are cases where the detergent does not dissolve well in the dispenser 24 of the door 23.

[0181] The dishwasher may include a detergent box 4. The detergent box 4 may accommodate detergent, The detergent box 4 may accommodate tablet-type detergent.

[0182] The detergent box 4 may be disposed in the rack 30. The detergent box 4 may be coupled to the rack 30.

[0183] The detergent box 4 may be disposed in the first rack 31. The detergent box 4 may be coupled to the first rack 31. The detergent box 4 may be disposed and / or coupled to the lowermost disposed rack 31 of the plurality of racks 31, 32, 33.

[0184] 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 depending on the user's preference.

[0185] The dishwasher may supply steam to the washing room 11.

[0186] The steam nozzle 57 may supply steam to the washing room 11. The steam nozzle 57 is provided at the front of the washing room 11 and may supply steam toward the rear. The steam nozzle 57 is provided at the lower portion of the washing room 11 and may supply steam upward. The steam nozzle 57 is provided at the front lower portion of the washing room 11 and may supply steam toward the upper rear.

[0187] 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 portion 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.

[0188] The dishwasher may include a sump 60. The sump 60 may be supplied with water from an external water source such as a municipal water supply. The sump 60 may store water supplied from the outside.

[0189] The sump 60 may be supplied with water from an external water source through a 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.

[0190] A water supply valve 72 may close the water supply pipe 71. The water supply valve 72 may control the flow of water flowing from an external water source to the sump 60.

[0191] The sump 60 may be provided below the tub 10. The sump 60 may be disposed below the bottom 12 of the tub 10. The sump 60 may be disposed in the machine room 26. The sump 60 may be connected to the bottom 12 of the tub 10, and may be disposed in the machine room 26.

[0192] The sump 60 may store water drained from the washing room 11.

[0193] The dishwasher may include a filter 68. The filter 68 may filter out foreign substances from water flowing from the washing room 11 to the sump 60. The filter 68 may be disposed in the sump. The filter 68 may be provided on the bottom 12 of the washing room 11.

[0194] The dishwasher may include a pump 63 that supplies washing water to the washing room 11. The pump 63 may pump water from the sump 60. The pump 63 may pump water and supply it to the spray unit 50.

[0195] 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.

[0196] The dishwasher may include a heater 66 that heats the washing water. The heater 66 may be connected to the pump 63. The heater 66 may heat water that flows into the pump 63.

[0197] Alternatively, the heater 66 may be provided separately from the pump 63. The heater 66 may heat water pumped from the pump 63. Alternatively, the heater 66 may be provided between the sump 60 and the pump 63 to heat water flowing into the pump 63.

[0198] A switching valve 75 may be connected to the washing pump 63. The switching valve 75 may receive washing water from the pump 63.

[0199] The switching valve 75 may be connected to a valve coupling portion 76.

[0200] A valve coupling portion 76 may be provided in the sump 60. The valve coupling portion 76 may form the lower portion of the switching valve 75. The valve coupling portion 76 may be connected to the pump 63.

[0201] The switching valve 75 may be connected to the spray unit 50.

[0202] The switching valve 75 may distribute the washing water. The switching valve 75 may selectively supply the washing water to at least one of the first spray arm 51, the second spray arm 52, and the top nozzle 53.

[0203] A pump inlet pipe 73 may connect the sump 60 and the pump 63. When the pump 63 operates, water in the sump 60 may be flowed into the pump 63 through the inlet pipe 73.

[0204] A discharge pipe 74 may be connected to the pump 63. The discharge pipe 74 may guide water discharged from the pump 63 toward the spray unit 50.

[0205] 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.

[0206] The discharge pipe 74 may connect the pump 63 and the switching valve 75.

[0207] A connecting pipe 751, 752, 753 may connect the spray unit 50 to the switching valve 75.

[0208] The connecting pipe 751, 752, 753 may include a first connecting pipe 751 connected to the first spray arm 51. The first connecting pipe 751 may be provided inside the first spray arm 51.

[0209] The connecting pipe 751, 752, 753 may include a second connecting pipe 752 connected to the second spray arm 52. The second connecting pipe 752 may be provided on the rear wall of the tub 10.

[0210] The connecting pipe 751, 752, 753 may include a third connecting pipe 753 connected to the top nozzle 53. The third connecting pipe 753 may be provided on the upper surface 14 of the tub 10.

[0211] When the pump 63 operates, the washing water discharged from the pump 63 may flow into the switching valve 75. The washing water flowing into the switching valve 75 may flow into at least one of the plurality of connecting pipes 751, 752, 753 by the switching valve 75.

[0212] If the washing water flows into the first connecting pipe 751, the washing water may be sprayed from the nozzle 513 of the first spray arm 51.

[0213] If the washing water flows into the second connecting pipe 752, the washing water may be sprayed from the nozzle 523 of the second spray arm 52.

[0214] If the washing water flows into the third connecting pipe 753, the washing water may be sprayed from the top nozzle 53.

[0215] The washing water sprayed into the washing room 11 is collected on 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 may be circulated again.

[0216] The sump 60 may be connected to a drain pump 78. A drain pipe 79 may connect the sump 60 and the drain pump 78.

[0217] When the drain pump 78 operates, the water in the sump 60 may be drained to the outside of the dishwasher.

[0218] Referring to FIGS. 1 to 3, the dishwasher may receive a command from a user through the interface 28. A user may turn the dishwasher on or off through the interface 28. A user may select a command related to a washing course and an option through the interface 28.

[0219] The washing courses that can be selected may include a standard course, an automatic course, a rapid course, a strong course, a delicate course, a soaking course, etc.

[0220] For example, the 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 related to dishes stored in the rack 30. For example, the rapid course may be a course having a shorter washing time than the standard course. For example, the strong course may be a course having a higher temperature of washing water and a longer washing time than the standard course. For example, the delicate course may be a course having a lower water pressure sprayed from the spray unit 50 than the standard course. For example, the soaking course may be a course having a longer washing time and a higher temperature of washing water than the standard course.

[0221] The option may include a washing area, a washing temperature, a washing time, a rinsing temperature, a rinsing time, steam, a drying time, etc.

[0222] When a user selects a washing course and an option, the interface 28 may display an estimated washing time. The interface 28 may display a remaining estimated washing time while the washing is in progress.

[0223] The washing course may include a pre-washing cycle, a main washing cycle, a rinsing cycle, a steam cycle, and a drying cycle.

[0224] When the washing course is started, a pre-washing cycle may start.

[0225] When the pre-washing cycle starts, the controller 27 may open the water supply valve 72 to supply water to the sump 60. The controller 27 may drive the pump 63 to spray the washing water into the washing room through the spray unit 50. The controller 27 may also drive the heater 66. When a preset pre-washing cycle time is elapsed, the controller 27 may drive the drain pump 78 to drain the water in the sump 60.

[0226] When the pre-washing cycle is completed, the main washing cycle may start.

[0227] When the main washing cycle starts, the controller 27 may open the water supply valve 72 to supply water to the sump 60. The water supplied to the sump 60 may be supplied to the pump housing 64. The controller 27 may drive the heater 66 to heat the washing water stored in the sump 60 and the pump housing 64. The controller 27 may heat the heater to heat the washing water to a preset washing temperature. The controller 27 may drive the pump 63 to spray the washing water into the washing room through the spray unit 50 the controller 27 may open the dispenser 24. When the dispenser 24 is opened, the detergent accommodated in the dispenser 24 may be supplied to the washing room 11. When the preset main washing cycle time is elapsed, the controller 27 may drive the drain pump 78 to drain the water in the sump 60.

[0228] When the main washing cycle is completed, the rinsing cycle may start.

[0229] When the rinsing cycle starts, the controller 27 may open the water supply valve 72 to supply water to the sump 60, The water supplied to the sump 60 may be supplied to the pump housing 64. The controller 27 may drive the heater 66 to heat the water in the sump 60 and the pump housing 64. The controller 27 may heat the heater to heat the washing water to a preset rinsing temperature. The controller 27 may drive the pump 63 to spray the washing water into the washing room through the spray unit 50. The controller 27 may supply the rinse to the washing room through the dispenser 24. When a preset rinsing cycle time is elapsed, the controller 27 may drive the drain pump 78 to drain the water in the sump 60. The rinsing cycle may be performed multiple times.

[0230] When the rinsing cycle is completed, the steam cycle may start depending on the course and option.

[0231] When the steam cycle starts, the controller 27 may open the water supply valve 72 to supply water to the sump 60. The controller 27 may drive the heater 66 to heat the supplied water to generate steam. Alternatively, the water supply valve 72 may be connected to a separate steam generator, and the steam generator may heat the supplied water to generate steam The generated steam may be sprayed into the washing room through the steam nozzle 57.

[0232] When the rinsing cycle and / or the steam cycle is completed, the drying cycle may start. Alternatively, the washing course may be terminated without the drying cycle.

[0233] Referring to FIG. 4, the detergent box 4 may be disposed on the first rack 31. The detergent box 4 may be connected to the first rack 31.

[0234] The first rack 31 may include a plurality of wires disposed in a grid shape. 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.

[0235] The first rack 31 may have a storage space 310. The storage space 310 may be a space for storing dishes.

[0236] 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 open between the plurality of wires. The storage space 310 may be open upward.

[0237] The first rack 31 may include a holder 318. The dishes may be placed on the holder 318.

[0238] The holder 318 may be provided in pairs. The holder 318 may be provided in multiple pairs.

[0239] The holder 318 may include a base 3181 disposed horizontally and a plurality of bars 3182 connected to the base 3181. The plurality of bars 3182 may be fixed to the base 3181. The plurality of bars 3182 connected to the base 3181 may be arranged parallel to each other. The plurality of bars 3182 may be arranged in the length direction of the base 3181.

[0240] The base 3181 may be provided to be rotatable. The plurality of bars 3182 may be fixed to the base 3181 and may rotate together with the base 3181.

[0241] The first rack 31 may be provided so as to be withdrawable from the washing room 11.

[0242] For example, the first rack 31 may be movably supported on a rail provided on the inside of the side wall 15 of the tub 10. The rail may be provided in pairs on both side walls.

[0243] Alternatively, the first rack 31 may be movably placed on the bottom 12 of the washing room 11.

[0244] The first rack 31 may include a roller 319. The roller 319 may be rotatably provided. The roller 319 may be provided in pairs on both sides in the width direction of the first rack 31. A plurality of rollers 319 are provided and arranged in the front-rear direction (or, in the depth direction of the washing room, or in the depth direction of the rack).

[0245] The roller 319 may be movably supported on the above described rail or the bottom 12 of the washing room.

[0246] The first rack 31 may include a first wire 311 extending in a first direction d1 (see FIG. 5). The first direction di may be a width direction of the washing room 11. The first direction d1 may be a width direction of the detergent box 4.

[0247] The detergent box 4 may be coupled to the first wire 311.

[0248] The first rack 31 may include a second wire 312. The second wire 312 may include a portion 3121 (see FIG. 15) spaced from the first wire 311.

[0249] The detergent box 4 may be coupled to the spaced portion 3121. A second holder 47 of the detergent box 4 described later may be coupled to the spaced portion 3121. The spaced portion 3121 may be referred to as a coupling portion 3121.

[0250] A detailed description of the coupling portion 3121 will be described later with reference to FIG. 15.

[0251] The second wire 312 may extend in a vertical direction. The second wire 312 may be bent in a rearward direction. The second wire 312 may be extended downwardly in a rearward direction. The second wire 312 may be extended in a rearward direction.

[0252] A plurality of second wires 312 may be provided. A plurality of second wires 312 may be arranged symmetrically with respect to the center line of the first rack 31.

[0253] 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 that is bent upwardly.

[0254] A user may put his / her hand into the bending part 315 and grip the first rack 31 to withdraw the first rack 31 from the washing room 11.

[0255] The first rack 31 may include a handle 317 disposed above the first wire 311. The handle 317 may be positioned above the upper wire 314. The handle 317 may be disposed above the bending part 315.

[0256] The handle 317 may be disposed parallel to the first wire 311. The handle 317 may be disposed parallel to the bending part 315.

[0257] The handle 317 may be provided on an upper rim 316 described below. The handle 317 may be provided on the front portion of the upper rim 316.

[0258] The first rack 31 may include an upper rim 316. The upper rim 316 may be provided on the upper edge of the first rack 31.

[0259] The upper rim 316 may be disposed above the upper wire 314. The upper rim 316 may be connected to the wire located at the uppermost side of the first rack 31,

[0260] Referring to FIG. 5, the detergent box 4 may include a basket 40 and a holder 46, 47.

[0261] The basket 40 may have a space for accommodating detergent. The space for accommodating detergent may be opened upward. Through the opened portion, a user may insert detergent. The portion opened upward may be referred to as a detergent inlet 48.

[0262] The basket 40 may include a bottom 42, 43. A detailed description of the bottom 42, 43 will be described later with reference to FIG. 13.

[0263] The basket 40 may include a front wall 41. The front wall 41 may face in a forward direction. 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 bottom 42, 43.

[0264] The basket 40 may include a side wall 44. The side wall 44 of the basket 40 may extend upward from the bottom 42, 43. The side wall 44 of the basket 40 may be connected to the front wall 41.

[0265] The side wall 44 of the basket 40 may be provided in pairs. The width of the basket 40 may be defined between a pair of side walls 42.

[0266] The basket 44 may include a rear wall 45. The rear wall 45 of the basket 40 may extend upward from the bottom 42, 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.

[0267] The front wall 41, the side wall 44, and the rear wall 45 of the basket 40 may also be referred to as the perimeter wall 41, 44, 45 of the basket 40.

[0268] The detergent inlet 48 may be opened upwardly and forwardly.

[0269] The side wall 44 of the basket 40 may extend upwardly from the front wall 41. The upper end of the side wall 44 of the basket 40 may be positioned upwardly from the upper end of the front wall 41. The side wall of the basket 40 may extend upwardly from the first holder 46.

[0270] The upper end of the side wall 44 of the basket 40 and the upper end of the rear wall 45 may be positioned at the same height.

[0271] 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.

[0272] 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.

[0273] The first holder 46 may provide a groove 461 into which the first wire 311 is inserted. The groove 461 is also referred to as a holder groove 461.

[0274] The holder groove 461 may be opened in the direction d1 in which the first wire 311 extends, The holder groove 461 may be opened in the first direction d1.

[0275] For example, the first wire 311 may extend in the width direction of the washing room 11 (or, the width direction of the first rack 31, or the width direction of the detergent box 4), and the holder groove 461 may be opened in the same direction.

[0276] The structure surrounding the holder groove 461, that is, the front wall 41, an extension portion 412, and the first holder 46, may have a hook shape. The first holder 46 may also be referred to as the first hook 46.

[0277] The holder groove 461 may be formed between the first holder 46 and the basket 40.

[0278] 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 may be disposed in front of the holder groove 461, the front wall 41 may be disposed in the rear of the holder groove 461, and the extension portion 412 described below may be disposed above the holder groove 461.

[0279] The holder groove 461 may be opened downward. The detergent box 4 may be connected 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.

[0280] The first holder 46 may be disposed in front of the front wall 41. The holder groove 461 may be formed between the first holder 46 and the front wall 41. The basket 40 may be disposed in the storage space 310.

[0281] The first holder 46 may be disposed in a position corresponding to the front end of the side wall 44 in the front-rear direction. The side wall of the basket 40 may be extended upwardly from the first holder 46. The detergent inlet 48 may be opened upwardly and forwardly.

[0282] The detergent box 4 may include a second holder 47. The second holder 47 may be coupled to the second wire 312.

[0283] The second holder 47 may extend from the basket 40. The second holder 47 may protrude from the basket 40.

[0284] 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.

[0285] 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.

[0286] The second holder 47 may be extended in a forward direction. The second holder 47 may be extended downward. The second holder 47 may be extended downwardly in a forward direction.

[0287] 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.

[0288] 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 disposed above the first holder 46. The detergent inlet 48 may be disposed above the first wire 311.

[0289] 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.

[0290] The detergent inlet 48 may be disposed between the first wire 311 and the upper wire 314.

[0291] The upper wire 314 may include a bending part 315 bent upward. The detergent box 4 may be disposed below the bending part 315.

[0292] The detergent inlet 48 may be disposed below the bending part 315. The detergent inlet 48 may be disposed between the first wire 311 and the bending part 315.

[0293] The detergent inlet 48 may be opened upwardly and forwardly.

[0294] The upper wire 314 may be disposed below the upper rim 316 (see FIG. 4). The bending part 315 may be disposed below the handle 317.

[0295] A plurality of second wires 312 may be provided. 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 with respect to the widthwise center line.

[0296] 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 with respect to the widthwise center line.

[0297] A plurality of second holders 47 may be provided. For example, the second holder 47 may be provided in a pair. Each of the pair of second holders 47 may protrude from a pair of side walls 44.

[0298] The pair of second holders 47 may be coupled to a pair of second wires 312.

[0299] Referring to FIG. 7, when the door 23 is closed, the inner panel 231 of the door 23 may provide the front side of the washing room 11.

[0300] The handle 317 may include a front end 3171 facing the door 23. The front end 3171 may be positioned forward of the first wire 311.

[0301] The basket 40 may be disposed in the storage space 310 of the first rack 31.

[0302] The first holder 46 may be positioned forward of the front wall 41. The holder groove 461 may be formed between the first holder 46 and the front wall 41.

[0303] The first holder 46 and the front wall 41 may face in a forward direction. The first holder 46 may face the door 23 when the door 23 is closed.

[0304] The first holder 46 may be positioned rearward of the front end 3171 of the handle 317.

[0305] The first rack 31 may be disposed below the washing room 11.

[0306] The inner panel 231 of the door 23 may have an inclined surface 232 at the bottom.

[0307] The second wire 312 may include an inclined portion 3122 extending in a direction inclined downward toward the rear, The inclined portion 3122 may extend parallel to the inclined surface 232 of the door 23.

[0308] The basket 40 may include an inclined surface 43 extending in a direction inclined downward toward the rear. The inclined surface 43 of the basket 40 may be extended 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.

[0309] A hole 439 may be provided on the inclined surface 43 of the basket 40. The hole 439 may also be referred to as an inclined hole 439.

[0310] The steam nozzle 57 (see FIG. 3) may be disposed on the inclined surface 232 of the door 23. When steam is sprayed from the steam nozzle 57, steam may be flowed into the basket 40 through the inclined hole 439. Through this, the basket 40 may be sterilized and cleaned.

[0311] Referring to FIG. 8, the first rack 31 has a storage space 310 for storing dishes, and the detergent box 4 may be disposed in the storage space 310.

[0312] The storage space 310 may be divided into a first area S1, a second area S2, and a third area S3 in the front-rear direction.

[0313] The first area S1 refers to an area positioned in front of the storage space 310. The detergent box 4 may be disposed in the first area S1.

[0314] The second area S2 refers to an area positioned in the rear of the first area S1. The aforementioned holder 318 (see FIG. 4) may be provided in the second area S2. Dishes may be stored in the holder 318 disposed in the second area S2.

[0315] The third area S3 refers to an area located behind the second area S2. The third area S3 may also be provided with the aforementioned holder 318 (see FIG. 4). Dishes may be stored in the holder 318 disposed in the third area S3.

[0316] 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.

[0317] Even if the holder 318 is not provided in the first area S1, dishes may be stored.

[0318] The detergent box 4 is disposed in the storage space 310, and may come into contact with dishes stored in the storage space 310.

[0319] In particular, dishes stored in the first area S1 and relatively large dishes stored in the second area S2 may come into contact with the rear wall 45 of the detergent box 4.

[0320] Referring to FIG. 9, the detergent box 4 may further include a plurality of protrusions protruding in a rearward direction from the rear wall 45.

[0321] Through this, surface contact between the dishes and the detergent box 4 may be prevented.

[0322] Thus, moisture remaining in the area where the detergent box 4 and the dishes come into contact may be minimized.

[0323] The basket 40 may include a hole 459 penetrating the rear wall 45. The hole 459 is also referred to as a rear hole 459.

[0324] A plurality of rear holes 459 may be provided. A plurality of rear holes 459 may be arranged in the width direction of the detergent box 4. In addition, the plurality of rear holes 459 may be arranged in the vertical direction.

[0325] A backbone 453 may be provided at the center of the width direction of the rear wall 45. The backbone 453 may have a structure corresponding to a closed portion 423 of the bottom surface 42 described below. The backbone 453 may have the same width as the closed portion 423.

[0326] The backbone 453 may extend in the vertical direction. The backbone 453 may have a width greater than the rib between the plurality of rear holes 459. The backbone 453 may have a width greater than the rear hole 459.

[0327] Referring to FIGS. 9 and 10, the rear wall 45 may include an upper portion 451 and a lower portion 452.

[0328] The lower portion 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.

[0329] The rear hole 459 may be formed in the lower portion 452.

[0330] The upper portion 451 may face the front opening of the detergent inlet 48. A hole may not be formed in the upper portion 451.

[0331] Referring to FIG. 10, the first holder 46 may extend in the width direction of the detergent box 4. The first holder 46 may connect both side walls 44.

[0332] The side wall 44 of the basket 40 may extend upwardly than the front wall 41. The side wall 44 of the basket 40 may extend upwardly than the first holder 46.

[0333] The detergent inlet 48 may be opened upwardly in a forward direction.

[0334] In the inclined surface 43

[0335] The basket 40 may include a hole 439 penetrating the inclined surface 43. The hole 439 may also be referred to as an inclined hole 439.

[0336] A plurality of inclined holes 439 may be provided. The plurality of inclined holes 439 may be arranged in the width direction of the detergent box 4.

[0337] A closed portion 433 may be provided at the center of the width direction of the inclined surface 43. The closed portion 433 may be referred to as a breastbone 433 to distinguish it from the closed portion 423 of the bottom surface 42 described later.

[0338] The breastbone 433 may have a structure corresponding to the closed portion 423 of the bottom surface 42. The breastbone 433 may have the same width as the closed portion 423.

[0339] The breastbone 433 may extend in the vertical direction. The breastbone 433 may have a width greater than the rib 438 between the plurality of inclined holes 439. The breastbone 433 may have a width greater than the plurality of inclined holes 439.

[0340] 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. The panel 462 may connect both side walls 44.

[0341] The basket 40 may further include the extension portion 412 extending from the front wall 41. Alternatively, the front wall 41 may include lower portion 411 extending upward from the bottom 42, 43 and the extension portion 412 extending from the lower portion.

[0342] The extension portion 412 may extend at an angle with respect to the lower portion 411. The extension portion 412 may extend at an angle upwardly in a forward direction.

[0343] 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.

[0344] 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.

[0345] The first holder 46 may include a protrusion 463 protruding in a rearward direction 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.

[0346] A plurality of protrusions 463 may be provided. The plurality of protrusions 463 may be spaced apart in the width direction of the detergent box 4.

[0347] The extension portion 412 may include a through hole 413 disposed at a position corresponding to the protrusion 463.

[0348] Accordingly, when injection molding the detergent box 4, the mold forming the upper portion of the protrusion 463 may be pulled out upward.

[0349] The detergent box 4 may include a raised portion (49: 491; 492; 493). The raised portion 49 may protrude from the inner surface of the basket 40. The raised portion 49 may protrude inward from the center of the width direction of the basket.

[0350] The raised portion 49 may include a bottom raised portion 492 protruding from the bottom surface 42, an inclined raised portion 493 protruding from the inclined surface 43, and a front raised portion 491 protruding from the front wall 41.

[0351] Accordingly, it is possible to prevent a detergent such as a tablet type accommodated in the detergent box 4 from sticking to the inner surface of the basket 40.

[0352] 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).

[0353] The second holder 47 may be extended in direction intersecting with the radius r of a circle having a center C positioned in the groove 461 of the first holder 46.

[0354] The second holder 47 may be extended in a tangent direction t of a circle having center C positioned in the groove 461 of the first holder 46.

[0355] Accordingly, the first wire 311 may be inserted into the holder groove 461 between the first holder 46 and the first front wall 41, and the detergent box 4 may be rotated to couple the second holder 47 to the second wire 312.

[0356] The second holder 47 may extend in a direction perpendicular to the inclined surface 43 of the basket 40.

[0357] The second holder 47 may be positioned above the bottom surface 40 of the basket 40.

[0358] The second holder 47 may be positioned rearward of the front wall 41 of the basket 40.

[0359] The first holder 46 may be positioned at a position corresponding to the front end of the side wall 44 in the front-rear direction.

[0360] Referring to FIG. 13, the basket 40 may include a bottom 42, 43. The outer surface of the bottom 42, 43 may face downward.

[0361] A plurality of holes 429, 439 may be formed in the bottom 42, 43 of the basket 40. The hole 429, 439 may penetrate the bottom 42, 43.

[0362] The bottom 42, 43 of the basket 40 may include a closed portion 423, 433 disposed in the center of the bottom 42, 43.

[0363] Accordingly, it is possible to prevent the problem of excessive dissolution of detergent in the pre-washing cycle that precedes the main washing cycle.

[0364] In addition, the formation of a weld line during injection molding of the detergent box 4 can be prevented. In the case of injecting raw materials into a position corresponding to the rear or lower portion of the detergent box 4, if the raw materials are supplied through a portion corresponding to the rib 428, 438 provided between the plurality of holes 429, 439, the supply speed may be slow and the material may cool during the supply process, thereby causing a weld line. The raw materials may be supplied quickly through a portion corresponding to the closed portion 423, 433, thereby preventing the problem of weld lines.

[0365] The closed portion 423, 433 may have a width greater than the hole 429, 439 of the bottom 42, 43.

[0366] The bottom 42, 43 may include a rib 428, 438 that partitions a plurality of bottom holes 423, 433. The rib 428, 438 may have a width smaller than the closed portion 423, 433.

[0367] The bottom 42, 43 of the basket 40 may include a bottom surface 42. The bottom 42, 43 may include an inclined surface 43.

[0368] The hole 429 disposed on the bottom surface 42 is also referred to as a bottom hole 429. A plurality of bottom holes 429 may be provided. The plurality of bottom holes 429 may be arranged in the width direction of the detergent box 4.

[0369] A closed portion 423 may be disposed in the center of the width direction of the bottom surface 42. The closed portion 423 may have a width greater than the bottom hole 429. The closed portion 423 may have a width greater than the rib 428 of the bottom surface 42.

[0370] The inclined surface 43 has been described above with reference to FIG. 10, and thus, a detailed description thereof will be omitted.

[0371] The first holder 46 includes panel 462 extending in the width direction of the detergent box 4 and a protrusion 463 protruding from the panel 462.

[0372] A through 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.

[0373] The second holder 47 may include 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 stopper 474 disposed between the hand 473 and the shoulder 471.

[0374] 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 of the basket 40 (or, in the first direction dl).

[0375] The second holder 47 may include a fillet 478 connecting the shoulder 471 and the side wall 44.

[0376] The second holder 47 may include a an arm 472 extending from the shoulder 471. The arm 472 may extend in the second direction d2 (see FIG. 5). The arm 472 may extend in a direction intersecting with the radius r of a circle having a center C positioned in the groove 461 of the first holder 46. The arm 472 may extend in a tangent direction t of the circle having a center C positioned in the groove 461 of the first holder 46.

[0377] The second holder 47 may include a hand 473 protruding from the arm 472. The hand 473 may be spaced from the shoulder 471. The hand 473 may protrude in the inner width direction of the detergent box 4.

[0378] The second holder 47 may have a hook shape by protruding the hand 473 from the arm 472. The second holder 47 may also be referred to as a second hook 47.

[0379] The second wire 312 may be inserted between the arm 472 and the side wall 44 in the width direction. It may be inserted between the rear of the hand 473 of the second holder 47.

[0380] The second holder 47 may further include an inclined surface 4731 extending from a front end 4721 of the arm 472 to the hand 473.

[0381] 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 positioned at the rear of the hand 473, the second holder 47 may be restored.

[0382] If the length of the arm 472 is short, the stress applied to the arm 472 during the process in which the second holder 47 is coupled to and separated from the second wire 312 is large. Accordingly, there is a risk that the arm 472 may be permanently deformed or damaged.

[0383] The arm 472 may be extended longer than the diameter of the second wire 312.

[0384] Accordingly, the stress applied to the arm 472 may be reduced. Accordingly, the problem that the arm 472 is permanently deformed or damaged may be prevented.

[0385] The distance between the shoulder 471 and the hand 473 may be greater than the diameter of the second wire 312.

[0386] If there is no arm 472 other structure between the hand 473 and the shoulder 471, the second wire 312 may not be fixed.

[0387] 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 positioned between the hand 473 and the shoulder 471.

[0388] The second wire 317 may be inserted into a space 475 between the stopper 474 and the hand 473.

[0389] The space 475 may also be referred to as a grab 475. The second wire 312 may be coupled to the grab 475.

[0390] Through this, the second wire 312 may be fixed to the grab 475.

[0391] As described above, by configuring the length of the arm 472 to be long, the stress applied to the arm 472 may be reduced in comparison with a case where the length of the arm 472 is short.

[0392] Meanwhile, the stress may be concentrated on the connection portion between the arm 472 and the shoulder 471.

[0393] The stopper 474 may be extended toward the shoulder 471 and connected to the shoulder 471.

[0394] Through this, the connection portion between the arm 472 and the shoulder 472 may be reinforced.

[0395] When the stopper 474 is connected to the shoulder 471, a problem similar to the case where 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.

[0396] The stopper 474 may have a width smaller than the width of the arm 472.

[0397] Accordingly, the problem that stress is concentrated on the front portion of the arm 472 and a connecting part between the arm 472 and the shoulder 471 may be resolved.

[0398] Referring to FIGS. 14 and 15, the stopper 474 may be extended to be inclined with respect to the direction in which the arm 472 extends. The stopper 474 may be extended to be inclined with respect to the second direction d2 (see FIG. 5).

[0399] After the first holder 46 is coupled to the first wire 311, the detergent box 4 may be rotated around the first wire 311 to couple the second holder 47 to the second wire 312. At this time, when the hand 473 comes in contact with the second wire 312, the part close to the first wire 311 preferentially may come in contact with the second wire 312. After the hand 473 comes in contact with the first wire 311, if the detergent box 4 is further rotated, the part of the hand 473 close to the first wire 311 preferentially may be pushed outward in the width direction, and the second wire 312 may be coupled to the second holder 47.

[0400] 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.

[0401] A space 476 may be formed between the stopper 474 and the shoulder 471. The space 476 may also be referred to as an armpit 476.

[0402] Therefore, during the process of coupling the second holder 47 and the second wire 312, the stress applied to the arm 472 may be dispersed, and the connecting part between the shoulder 471 and the arm 472 may be effectively reinforced.

[0403] Referring to FIG. 15, the second wire 312 may include a portion 3121 (see FIG. 15) spaced from the first wire 311. The second holder 47 may be coupled to the spaced portion. The spaced portion 3121 may be referred to as a coupling portion 3121.

[0404] The coupling portion 3121 may be spaced from the first wire 311. The coupling portion 3121 may be spaced in a direction different from the first direction d1 in which the first wire 311 extends from the first wire 311.

[0405] For example, the coupling portion 3121 may be spaced downwardly from the first wire 311. For example, the coupling portion 93121 may be spaced downwardly and rearwardly from the first wire 311.

[0406] The second wire 312 may extend in a vertical direction. The second wire 312 may be connected to the first wire 311 at a portion extending in a vertical direction.

[0407] The second wire 312 may be bent in a rearward direction. The second wire 312 may be bent in a rearward direction at the bottom of the portion extending in a vertical direction. The second wire 312 may be bent downwardly in a rearward direction at the bottom of the portion extending in a vertical direction.

[0408] The coupling portion 3121 may be extended downwards in a rearward direction at the bottom of the portion extending in a vertical direction.

[0409] The coupling portion 3121 may be extended to intersect with the second holder 47. The coupling portion 3121 may be extended in a direction perpendicular to the second holder 47. The coupling portion 3121 may be extended in a direction perpendicular to the second direction d2 (see FIG. 5).

[0410] 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.

[0411] 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.

[0412] The reinforcing rib 479 may protrude from the rear of the shoulder 471. It may protrude from the shoulder 471 in the opposite direction to the arm 472.

[0413] The second holder 47 may include a fillet 478 connecting the shoulder 471 and the side wall 44. The fillet 478 may be provided on the front side and the rear side of the shoulder 471.

[0414] Referring to FIG. 17 and FIG. 18, the closed portion 423, 433 may protrude upward than the rib 428, 438 in the space accommodating the detergent. The protruding portion may also be referred to as a raised portion 49.

[0415] The detergent box 4 may include a raised portion 49. The raised portion 49 may protrude from the inner surface of the basket 40. The raised portion 49 may protrude inward from the center in the width direction of the basket 40.

[0416] The raised portion 49 may include a bottom raised portion 492 protruding from the bottom surface 42. The bottom raised portion 492 may protrude from the closed portion 423.

[0417] The raised portion 49 may include an inclined raised portion 493 protruding from the inclined surface 43. The inclined raised portion 493 may protrude from the breastbone 433. The inclined raised portion 493 may extend from the bottom raised portion 492.

[0418] The raised portion 49 may include an front raised portion 491 protruding from the front wall 41. The front raised portion 491 may extend from the inclined raised portion 493.

[0419] Accordingly, the problem that the detergent such as tablet type accommodated in the detergent box 4 sticks to the inner surface of the basket 40 may be prevented.

[0420] The through hole 413 penetrating the extension portion 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.

[0421] Referring to FIGS. 1 to 18, a dishwasher according to one embodiment of the present disclosure includes: a tub 10 providing a washing room 11; a rack 31 disposed in the washing room, the rack 31 including a first wire 311 extending in a first direction d1 and a second wire 312 having a coupling portion 1321 spaced apart from the first wire 311 in a direction different from the first direction d1; and a detergent box 4 coupled to the rack 31.

[0422] The detergent box 4 includes: a basket 40 which has a space for accommodating a detergent; a first holder 46 that protrudes from the basket 40, and provides a groove 461 which is open in the first direction d1, and into which the first wire 311 is inserted; and a second holder that protrudes from the basket 40, and provides a groove 461 into which the coupling portion 3121 of the second wire 312 is inserted.

[0423] The first holder 46 is coupled to the first wire 311 so that the detergent box 4 is able to rotate around the first wire 311. The second holder 47 is coupled to the coupling portion 3121 of the second wire 312 to restrain the rotation of the detergent box 4.

[0424] The second holder 47 extends in a direction intersecting with a radius r of a circle having a center C positioned in the groove 461 of the first holder 46.

[0425] The second holder 47 extends in a tangential direction t of the circle having a center C positioned in the groove 461 of the first holder 46.

[0426] The second holder 47 extends parallel to a second direction d2 perpendicular to the first direction d1.

[0427] The second holder 47 includes: a shoulder 471 which protrudes from the basket 40; an arm 472 which extends from the shoulder 471 in the second direction d2; and a hand 473 which protrudes from the arm 472, is and spaced apart from the shoulder 471 in the second direction d2. The distance between the shoulder 471 and the hand 473 is greater than a diameter of the second wire 312.

[0428] The second holder 47 further includes a stopper 474 that protrudes from the arm 472 and is spaced apart from the hand 473.

[0429] The second wire 312 is inserted into a space 475 between the stopper 474 and the hand 473.

[0430] The stopper 474 extends toward the shoulder 471 and is connected to the shoulder 471.

[0431] The stopper 474 may have a width smaller than the width of the arm 472.

[0432] The stopper 474 may be extended to be inclined with respect to the second direction d2.

[0433] The stopper 474 may be extended in a direction that is further away from the groove 461 of the first holder 46 as it moves away from the shoulder 471.

[0434] The dishwasher further includes a reinforcing rib 479 which protrudes from the shoulder 471 in a direction opposite to the arm 472 and is connected to the basket 40.

[0435] The second holder 47 further includes an inclined surface 4731 extending from a front end 4721 of the arm 472 to the hand 473.

[0436] The dishwasher according to an embodiment of the present disclosure includes: a tub 10 providing washing room 11 open toward 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 that is disposed in the washing room 11, has an open storage space 310 for storing dishes, and includes a first wire 311 extending horizontally; and a detergent box 4 including a basket 40 having a detergent inlet 48 open toward the top, and a first holder 46 that extends from the basket 40 and is coupled to the first wire 311.

[0437] The basket 40 includes: a bottom 42, 43; a front wall 41 extending upward from the bottom 42, 43; and a side wall 44 that extends upward from the bottom 42, 43 and is connected to the front wall 41.

[0438] The first holder 46 is disposed forward of the front wall 41. The basket 40 is disposed in the storage space 310.

[0439] The first holder 46 may be disposed at a position corresponding to the front end of the side wall 44 in the front-rear direction.

[0440] The rack 31 may further include a handle 317 disposed parallel to the first wire 311 above the first wire 311.

[0441] The first holder 46 may be positioned rearward of the handle 317.

[0442] The door 23 may be rotatably coupled to the front lower portion of the tub 10. The rack 31 may be disposed at the lower portion of the washing room 11. The bottom 42, 43 of the basket 40 may include a flat bottom surface 42 and an inclined surface 43 that extends inclinedly from the bottom surface42 and is connected to the front wall 41.

[0443] The side wall 44 of the basket 40 may extend upwardly from the front wall 41 and the first holder 46. The detergent inlet 48 may be opened upwardly and forwardly.

[0444] 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 that is bent upwardly. The detergent box 4 may be disposed below the bending part 315.

[0445] The extension portion 412 extending from the front wall 41 may be further included.

[0446] The first holder 46 may include: a panel 462 that is connected to the extension portion 412 and extends in the width direction of the detergent box 4; and a protrusion 463 protruding in a rearward direction from the panel 462.

[0447] The extension portion 412 may include a through hole 413 disposed at a position corresponding to the protrusion 463.

[0448] The basket 40 may further include a rear wall 45 that is connected to the side wall 44 and faces the front wall 41.

[0449] The detergent box 4 may further include a plurality of protrusions protruding in a rearward direction from the rear wall 45.

[0450] The dishwasher according to an embodiment of the present disclosure includes: a tub 10 providing washing room 11; a rack 31 disposed in the washing room 11; and a detergent box 4 that includes a basket 40 providing a space for accommodating detergent and is coupled to the rack 31.

[0451] The bottom 42, 43 of the basket 40 includes: a closing portion 423, 433 disposed in the center of the bottom 42, 43; a plurality of bottom holes 429, 439 disposed on one side of the closing portion 423, 433; and a rib 428, 438 that partitions the plurality of bottom holes 429, 439 and has a smaller width than the closing portion 423, 433.

[0452] The closing portion 423 may protrude upward than the rib 428 in a space for accommodating the detergent.

[0453] The detergent box 4 according to an embodiment of the present disclosure includes: a bottom 42, 43 having a plurality of holes 429, 439; a peripheral wall 41, 44, 45 that extends upward from the bottom 42, 43 to provide a space for accommodating the detergent; and a closing portion 423, 433 disposed in the center of the bottom.

[0454] The plurality of holes 429, 439 are disposed on one side and the other side of the closing portion 423, 433.

[0455] The bottom 42, 43 includes a rib 428, 438 that partitions a plurality of holes 429, 439 disposed on one side of the closed portion.

[0456] The closed portion 423, 433 protrudes upward than the rib 428, 438 in the space that accommodates the detergent.

[0457] The detergent box 4 may further include a holder 46, 47 that protrudes from the peripheral wall 41, 44, 45 and is configured to be coupled to the rack 30 of the dishwasher.

[0458] Certain embodiments or other embodiments of the invention described above are not mutually exclusive or distinct from each other. Any or all elements of the embodiments of the invention described above may be combined or combined with each other in configuration or function.

[0459] For example, a configuration “a” described in one embodiment of the invention and the drawings and a configuration “B” described in another embodiment of the invention and the drawings may be combined with each other. Namely, although the combination between the configurations is not directly described, the combination is possible except in the case where it is described that the combination is impossible

[0460] Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and / or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and / or arrangements, alternative uses will also be apparent to those skilled in the art.

Claims

1. A dishwasher comprising:a tub which provides a washing chamber;a rack which is disposed in the washing chamber; anda detergent box which is coupled to the rack,wherein the rack comprises:a first wire which extends in a first direction; anda second wire which has a coupling portion that is spaced apart from the first wire in a direction different from the first direction and,wherein the detergent box comprises:a basket which has a space for accommodating a detergent;a first holder that protrudes from the basket, and provides a groove which is open in the first direction, and into which the first wire is inserted; anda second holder that protrudes from the basket, and provides a groove into which the coupling portion of the second wire is inserted.

2. The dishwasher of claim 1, wherein the first holder is coupled to the first wire so that the detergent box is able to rotate around the first wire, and the second holder is coupled to the coupling portion of the second wire to restrain the rotation of the detergent box.

3. The dishwasher of claim 1, wherein the second holder extends in a direction intersecting with a radius of a circle having a center positioned in the groove of the first holder.

4. The dishwasher of claim 3, wherein the second holder extends in a tangential direction of the circle having a center positioned in the groove of the first holder.

5. The dishwasher of claim 1, wherein the second holder extends parallel to a second direction perpendicular to the first direction.

6. The dishwasher of claim 5, wherein the second holder comprises:a shoulder which protrudes from the basket;an arm which extends from the shoulder in the second direction; anda hand which protrudes from the arm, is and spaced apart from the shoulder in the second direction,wherein a distance between the shoulder and the hand is greater than a diameter of the second wire.

7. The dishwasher of claim 6, wherein the second holder further comprises a stopper that protrudes from the arm and is spaced apart from the hand.

8. The dishwasher of claim 7, wherein the second wire is inserted into a space between the stopper and the hand.

9. The dishwasher of claim 7, wherein the stopper extends toward the shoulder and is connected to the shoulder.

10. The dishwasher of claim 6, further comprising a reinforcing rib which protrudes from the shoulder in a direction opposite to the arm and is connected to the basket.

11. The dishwasher of claim 6, wherein the second holder further comprises an inclined surface extending from a front end of the arm to the hand.

12. The dishwasher of claim 1, further comprising a door which is rotatably coupled to a front of the tub to open and close the washing room,wherein the rack has a storage space that is opened upward to store dishes, and the first wire extends horizontally,wherein the basket comprises:a bottom;a front wall which extends upward from the bottom;a side wall which extends upward from the bottom and is connected to the front wall,wherein the first holder is disposed forward of the front wall, and the basket is disposed in the storage space.

13. The dishwasher of claim 12, wherein the rack further comprises a handle which is disposed parallel to the first wire above the first wire,wherein the handle comprises a front end positioned forward of the first wire,wherein the first holder is disposed rearward of the front end of the handle.

14. The dishwasher of claim 12, wherein the door is rotatably connected to a front lower portion of the tub, and the rack is disposed at a lower portion of the washing room,wherein the bottom of the basket comprises:a horizontal bottom surface; anda sloped surface which extends obliquely from the bottom surface and is connected to the front wall.

15. The dishwasher of claim 12, further comprising an extension portion extending from the front wall,wherein the first holder comprises:a panel which is connected to the extension portion, and extends in a width direction of the detergent box; anda protrusion portion which protrudes in a rearward direction from the panel,wherein the extension portion comprises a through hole disposed at a position corresponding to the protrusion portion.

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