Dishwasher

Abstract

The present disclosure relates to a dishwasher. The dishwasher disclosed herein comprises: a tub; a sump disposed below the tub and storing water supplied to the tub; and a base disposed below the sump. In addition, the dishwasher comprises a heat pump module for heating water supplied from the sump to the tub. The heat pump module is detachably mounted to the base. When the heat pump module is mounted to the base, the heat pump module is connected to a filter device.

Description

dishwasher

[0001] The present disclosure relates to a dishwasher, and more particularly, to a dishwasher including a heat pump module.

[0002] A dishwasher is a device that uses water to wash dishes. A dishwasher can wash dishes using heated water. Therefore, a dishwasher may include a heater that heats the water.

[0003] However, it is also possible to use a heat pump as a means of heating water.

[0004] Patent registration KR 10-2696737 discloses a dishwasher including a heat pump.

[0005] When inspecting or repairing a dishwasher's internal components, the entire unit may need to be turned over to inspect the components located beneath the tub. However, since heat pump compressors still contain residual refrigerant or oil, turning the unit over can compromise the performance or reliability of the heat pump, including the compressor.

[0006] The present disclosure aims to solve the above-mentioned and other problems.

[0007] Another goal is to provide a dishwasher with a modular heat pump that can be easily disassembled.

[0008] Another object is to provide a dishwasher in which the heat pump module can be easily mounted or detached from the base.

[0009] Another purpose is to provide a dishwasher in which the heat pump module is stably positioned and fixed while mounted on the base.

[0010] Another object is to provide a dishwasher in which the filter connected to the heat pump module can be easily replaced.

[0011] To achieve the above object, a dishwasher according to an embodiment of the present disclosure includes a tub, a sump disposed below the tub and storing water supplied to the tub, and a base disposed below the sump. Furthermore, the dishwasher includes a heat pump module that heats water supplied from the sump to the tub. The heat pump module is detachably mounted to the base.

[0012] The dishwasher includes a filter device connected to the heat pump module and filtering air flowing to the heat pump.

[0013] The above heat pump module includes a compressor that compresses refrigerant, a condenser that heats water supplied to the tub, an evaporator that exchanges heat between the refrigerant and air, and a fan that forms air flow to the evaporator.

[0014] When the heat pump module is mounted on the base, the heat pump module is connected to the filter device. When the heat pump module is mounted on the base, the filter device is connected to the evaporator.

[0015] The above heat pump module includes a module tray that is detachably arranged on the base. The compressor, the condenser, and the evaporator are arranged on the module tray.

[0016] The above heat pump module is slidably connected to the base. The above module tray is slidably connected to the base.

[0017] The above base includes a module cover that is coupled to the base to fix the arrangement of the module tray.

[0018] The above base includes an exhaust duct that discharges air flowing by the fan to the outside of the base.

[0019] When the heat pump module is mounted on the base, the heat pump module is positioned between the exhaust duct and the filter device. When the heat pump module is mounted on the base, the fan is connected to the exhaust duct.

[0020] When the above heat pump module is mounted on the base, the evaporator and the fan are placed between the exhaust duct and the filter device.

[0021] The above module tray includes a tray base positioned above the base, and a tray side wall extending upward from one side of the tray base. The base includes a base side wall extending in the direction of movement of the module tray. The base side wall and the tray side wall are positioned to face each other.

[0022] The heat pump module includes a module tray that is detachably arranged on the base. The module tray includes a first tray side wall and a second tray side wall that is spaced apart from and arranged parallel to the first tray side wall. The compressor and the condenser are arranged between the first tray side wall and the second tray side wall.

[0023] The base includes a first base side wall arranged to face the first tray side wall, and a second base side wall arranged to face the second tray side wall.

[0024] A first guide rib protruding in the direction in which the first tray side wall is arranged is disposed on the first base side wall. A second guide rib protruding in the direction in which the second tray side wall is arranged is disposed on the second base side wall.

[0025] A first guide groove into which the first guide rib is inserted is formed on the first tray side wall. A second guide groove into which the second guide rib is inserted is formed on the second tray side wall.

[0026] The base includes an end wall that contacts one end of the module tray and a spacer protruding from the end wall. The spacer is positioned upward at a predetermined distance from the bottom surface of the base. When the heat pump module is mounted on the base, the module tray is positioned below the spacer.

[0027] An outlet opening toward the evaporator is formed on one side of the filter device. The filter device includes a peripheral wall forming the outlet.

[0028] The above-mentioned peripheral wall includes an upper wall positioned above the outlet and a lower wall positioned below the outlet. The upper wall and the lower wall guide the left-right movement of the evaporator.

[0029] The above module tray includes an evaporator cover that forms a space in which the evaporator is placed. An upper tip is disposed so as to protrude from the lower end of the upper wall toward the evaporator and is positioned below the upper wall of the evaporator cover. A lower tip is disposed so as to protrude from the upper end of the lower wall toward the evaporator and is positioned above the lower wall of the evaporator cover.

[0030] The above-mentioned peripheral wall includes two side walls arranged on both sides of the outlet. Each of the two side walls is formed with a side groove extending in the vertical direction.

[0031] The above evaporator cover includes a side tip that protrudes in the direction in which the filter device is arranged so as to be inserted into the side groove.

[0032] When the above heat pump module is mounted on the base, the side tip is inserted into the side groove.

[0033] The above filter device includes a filter arrangement portion in which a filter is arranged, and an air guide portion that sends air passing through the filter to the evaporator. A plurality of inner ribs are arranged spaced apart from each other inside the air guide portion.

[0034] The above filter device includes a filter device body forming a space in which a filter is placed inside, a connector positioned on the upper portion of the filter device body and forming an intake port, and a cap positioned on top of the connector. The cap is positioned so as to be detachable from the connector.

[0035] The above cap is connected to the above connector on the bottom plate of the above tub.

[0036] When the cap is separated from the connector, the filter is pulled out over the bottom plate of the tub.

[0037] Specific details of other embodiments are included in the detailed description and drawings.

[0038] According to the dishwasher of the present disclosure, one or more of the following effects are provided.

[0039] First, the heat pump is modularized and can be separated and installed on the base in a sliding manner, which has the advantage of allowing for easy separation and installation.

[0040] Therefore, when inspecting and repairing the internal structure of a dishwasher, the heat pump module can be removed in advance, eliminating the need to overturn the heat pump. Furthermore, repairs to the heat pump module itself can be easily performed.

[0041] Second, there is an advantage in that the heat pump module can be easily separated from the base or stably combined with the base through the guide structure on the base and the heat pump module.

[0042] Third, with the heat pump module mounted on the base, there is an advantage in that the structure for maintaining multiple arrangements can be maintained stably.

[0043] Fourth, the filter device connected to the heat pump can be replaced inside the tub by removing the cap from the top of the tub's base plate. This has the advantage of allowing users to easily remove the filter without having to go through the base.

[0044] The effects of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0045] FIG. 1 is a perspective view of a dishwasher according to one embodiment of the present disclosure.

[0046] FIG. 2 is a schematic diagram of a dishwasher according to one embodiment of the present disclosure.

[0047] FIG. 3 is a perspective view of a base and a configuration disposed on the base according to one embodiment of the present disclosure.

[0048] FIG. 4 is a plan view of a base and a heat pump module disposed on the base according to one embodiment of the present disclosure.

[0049] FIG. 5 is a plan view of a base and a heat pump module separated from the base according to one embodiment of the present disclosure.

[0050] FIG. 6 is a drawing for explaining a base and a configuration placed on the base and a configuration separated from a filter device according to one embodiment of the present disclosure.

[0051] FIG. 7 is a side view of a filter device according to one embodiment of the present disclosure.

[0052] FIG. 8 is a side view of a heat pump module according to one embodiment of the present disclosure.

[0053] Figure 9 is a perspective view of a heat pump module according to one embodiment of the present disclosure.

[0054] FIG. 10 is a side perspective view of a base according to one embodiment of the present disclosure.

[0055] FIG. 11 is a perspective view illustrating a state in which a heat pump module according to one embodiment of the present disclosure is mounted on a base.

[0056] Fig. 12 is a cross-sectional view taken along line ⅩⅡ-ⅩⅡ' of Fig. 11.

[0057] Fig. 13 is a cross-sectional view illustrating a coupling relationship between a filter device and a base according to one embodiment of the present disclosure.

[0058] FIG. 14 is another cross-sectional view illustrating the coupling relationship between a filter device and a base according to one embodiment of the present disclosure.

[0059] FIG. 15 is a schematic diagram illustrating a direction in which a heat pump module according to one embodiment of the present disclosure is withdrawn from a base.

[0060] FIG. 16 is a schematic diagram illustrating a direction in which a heat pump module is withdrawn from a base according to another embodiment of the present disclosure.

[0061] FIG. 17 is a schematic diagram illustrating a direction in which a heat pump module is withdrawn from a base according to another embodiment of the present disclosure.

[0062] The advantages and features of the present disclosure, and methods for achieving them, will become clearer with reference to the embodiments described below in detail with the accompanying drawings. However, the present disclosure is not limited to the embodiments described below and may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure is complete and to fully inform those skilled in the art of the disclosure of the scope of the disclosure. The present disclosure is defined solely by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0063] Hereinafter, a dishwasher will be described with reference to the drawings of the present disclosure.

[0064] Referring to Figure 1, the external appearance of the dishwasher is briefly described.

[0065] The dishwasher includes a tub (10) forming a washing space. The tub (10) may have an open front.

[0066] The dishwasher includes a door (12) that opens and closes the open front of the tub (10).

[0067] The dishwasher includes a base (14) positioned below a tub (10). A plurality of components may be positioned in the space between the tub (10) and the base (14).

[0068] The dishwasher may include a side cover (30) positioned on the side of the tub (10).

[0069] Referring to Figure 2, the flow of water and the flow of refrigerant in a dishwasher are explained.

[0070] A sump (32) is placed below the tub (10). A drain pump (39) is placed on one side of the sump (32) to discharge water stored in the sump (32) to the outside.

[0071] A washing pump (34) is arranged on one side of the sump (32) to supply water stored in the sump (32) to the tub (10). The washing pump (34) may be equipped with a heater (not shown). Accordingly, the heater can heat the water supplied to the tub (10) through the washing pump (34).

[0072] A water softener (38) may be placed on one side of the sump (32). The water softener (38) is connected to the sump (32). Water supplied from the outside can be supplied to the sump (32). The water softener (38) can reduce the hardness of the water supplied to the sump (32).

[0073] A heat pump module (100) can be placed on one side of the washing pump (34).

[0074] The heat pump module (100) can use a compressor (102) to circulate refrigerant and heat water supplied to the tub (10).

[0075] The heat pump module (100) includes a condenser (104) that exchanges heat between refrigerant and water and heats water supplied to the tub (10).

[0076] The heat pump module (100) includes an evaporator (106) that exchanges heat between a refrigerant and air. The heat pump module (100) is arranged on one side of the evaporator (106) and includes a fan (108) that forms air flow to the evaporator (106).

[0077] The heat pump module (100) includes an expansion valve (110) placed between the condenser (104) and the evaporator (106).

[0078] The condenser (104) is connected between the washing pump (34) and the tub (10). Therefore, water supplied to the tub (10) through the washing pump (34) can pass through the condenser (104). The condenser (104) heats the water supplied to the tub (10).

[0079] A heater (not shown) may be placed on the washing pump (34). The washing pump (34) may generate steam by operating the heater. The washing pump (34) may include a steam supply pipe (36) directly connected to the tub (10).

[0080] Referring to Fig. 3, the base of the dishwasher and the configuration placed on the base are described.

[0081] The base (14) is placed under the tub (10). The base (14) can be placed so that its lower surface is in contact with the ground.

[0082] A plurality of configurations can be placed on top of the base (14).

[0083] A sump (32) is placed on top of the base (14) to store water supplied to the tub (10).

[0084] A washing pump (34) that supplies water stored in the sump (32) to the tub (10) can be placed on top of the base (14). The washing pump (34) is placed on one side of the sump (32).

[0085] A water softener (38) is placed on top of the base (14). The water softener (38) can reduce the hardness of the water supplied to the sump (32).

[0086] A heat pump module (100) is placed on top of the base (14). The heat pump module (100) is detachably placed on the base (14). The heat pump module (100) can be inserted into or withdrawn from the base (14) in a sliding manner.

[0087] The heat pump module (100) includes a module tray (120) that is detachably placed on the base (14).

[0088] The heat pump module (100) includes a compressor (102), a condenser (104), an evaporator (106), and a fan (108).

[0089] The heat pump module (100) includes an expansion valve (110).

[0090] A compressor (102), a condenser, and an evaporator (106) are placed on the module tray (120).

[0091] However, it is also possible to place only some of the compressor (102), condenser, and evaporator (106) on top of the module tray.

[0092] In the case of the compressor (102), for structural stability, it may be placed on top of the base, and the structure may be such that the user can disassemble the compressor exposed through the gap after the module tray (120) is pulled out. In this case, the pipe between the heat exchanger placed on top of the compressor (102) and the module tray (120) may be formed of a flexible or fluid material, and may be provided with a sufficient length so that the pipe is not strained even after being pulled out.

[0093] Unlike the drawing, it is also possible to place the filter device (40) on top of the module tray (120). In this case, the filter can be replaced while the filter device (40) is pulled out of the dishwasher by the module tray (120). A fan (108) is placed on top of the module tray (120). The fan (108) is placed on one side of the evaporator (106). The condenser (104) can use a plate heat exchanger that exchanges heat between water supplied to the tub (10) and refrigerant.

[0094] A module cover (70) is placed on one side of the heat pump module (100) on top of the base (14). The module cover (70) fixes the placement of the heat pump module (100) placed on top of the base (14).

[0095] The module cover (70) is coupled to the base (14). The module cover (70) can be coupled to the heat pump module (100). When the module cover (70) is separated from the base (14), the heat pump module (100) can be separated from the base (14).

[0096] The main controller, PCB, and other electrical components of the dishwasher can be mounted on the module cover (70).

[0097] For the convenience of maintenance of the entire unit, the module cover (70) can be separated from the base (14). In addition, the module cover (70) can also serve as a fixing and covering for the heat pump module (100). A filter device (40) for filtering the air supplied to the evaporator (106) is placed on the base (14).

[0098] The filter device (40) may have a filter (not shown) placed inside. The filter device (40) may include a cap (58) that opens at the top to allow replacement of the filter placed inside.

[0099] A suction port (not shown) may be formed on one side of the filter device (40). Even when the cap (58) is mounted on the filter device (40), air can flow into the filter device (40) through the suction port (not shown).

[0100] The filter device (40) is connected to the heat pump module (100). Specifically, the filter device (40) is connected to one side of the evaporator (106). Therefore, air introduced into the filter device (40) can flow into the evaporator (106).

[0101] An exhaust duct (16) is arranged on one side of the base (14). The exhaust duct (16) is connected to the heat pump module (100). The base (14) includes an exhaust duct (16) that discharges air flowing by a fan (108) to the outside of the base.

[0102] When the heat pump module (100) is mounted on the base (14), the exhaust duct (16) is placed on one side of the fan (108). Therefore, air flowing by the fan (108) can be discharged to the outside of the base (14) through the exhaust duct (16).

[0103] Referring to Fig. 4, the arrangement of the heat pump module placed on top of the base is described.

[0104] When the heat pump module (100) is mounted on the base (14), the evaporator (106) and fan (108) are placed between the filter device (40) and the exhaust duct (16).

[0105] The filter device (40) is fixedly placed on the base (14). Only the cap (58) of the filter device (40) can be separated from the filter device (40).

[0106] The filter device (40) causes the introduced air to flow into the evaporator (106). Therefore, the air introduced into the filter device (40) can flow into the exhaust duct (16) through the evaporator (106) and the fan (108).

[0107] When the heat pump module (100) is mounted on the base (14), the compressor (102) and the condenser (104) are positioned closer to the module cover (70) than the evaporator (106).

[0108] The module cover (70) can be arranged to cover one side of the compressor (102) and the condenser (104).

[0109] A condenser (104) is placed between the compressor (102) and the expansion valve (110).

[0110] The condenser (104) is arranged so that the connection surface (104a) to which the refrigerant hose (105) or water hose (not shown) is connected faces the expansion valve (110). The connection surface (104a) of the condenser (104) is arranged in a direction adjacent to the cleaning pump (34). (See Fig. 3)

[0111] Referring to Fig. 5, a heat pump module separated from the base is described.

[0112] The heat pump module (100) can be separated to one side of the left and right direction of the base (14).

[0113] When the heat pump module (100) is separated from the base (14), the fan (108) can be separated from the exhaust duct (16). When the heat pump module (100) is separated from the base (14), the evaporator (106) can be separated from the filter device (40).

[0114] As the module tray (120) is separated from the base (14), the heat pump module (100) is separated from the base (14).

[0115] When the heat pump module (100) is separated from the base (14), the evaporator (106), fan (108), compressor (102), and condenser (104) placed on the module tray (120) can move together. Therefore, the heat pump module (100) can be separated from the base (14) and the heat pump module (100) can be individually managed.

[0116] Additionally, a configuration in which the heat pump module (100) is placed on top of the base (14) through a separated area can be managed.

[0117] Referring to Fig. 6, a cap separated from the filter device is described.

[0118] The filter device (40) is fixedly arranged on the base (14). The filter device (40) is fixedly arranged while being connected to the base (14).

[0119] A filter (56) may be placed inside the filter device (40). A cap (58) is detachably connected to the filter device (40). When the cap (58) is detached from the filter device (40), the filter (56) placed inside the filter device (40) may be detached.

[0120] The cap (58) is placed on the bottom plate (10a) of the tub (10). Therefore, the cap (58) is separated upward from the bottom plate (10a) of the tub (10). A through hole (10b) through which a connector (60) passes is formed in the bottom plate (10a) of the tub (10).

[0121] With the cap (58) coupled to the filter device (40), the cap (58) is placed on the bottom plate (10a) of the tub (10). With the cap (58) separated from the filter device (40), the filter (56) can be pulled out on the bottom plate (10a) of the tub (10).

[0122] Accordingly, the user can replace the filter (56) placed inside the filter device (40) through the inside of the tub (10).

[0123] Referring to Fig. 7, the filter device is described.

[0124] The filter device (40) includes a filter device body (42) that forms a space in which a filter (56) is placed inside, a connector (60) that is placed on the upper portion of the filter device body (42) and forms an intake port (60a), and a cap (58) that is placed on top of the connector (60).

[0125] A filter (56) is placed inside the filter device body (42). The filter device body (42) guides air to the evaporator (106).

[0126] The connector (60) connects the filter device body (42) and the cap (58). The connector (60) is mounted on top of the filter device body (42). A separate suction port (60a) is formed in the connector (60). A portion of the connector (60) protrudes above the bottom plate (10a) of the tub (10). Therefore, the cap (58) positioned on the bottom plate (10a) of the tub (10) can be connected to the connector (60).

[0127] Referring to FIGS. 8 and 9, the structure of the heat pump module is described.

[0128] The heat pump module (100) includes a module tray (120) in which a compressor (102), an evaporator (106), and a condenser (104) are arranged.

[0129] The module tray (120) can be slidably connected to the base (14). The module tray (120) is slidably connected to the base (14). The module tray (120) is detachably placed on the base (14).

[0130] The module tray (120) includes a tray base (122) placed on top of the base (14).

[0131] The module tray (120) extends upward from the tray base (122) and includes tray side walls (124, 126) that contact the base side walls (18, 20) of the base (14).

[0132] The tray base (122) forms a double bottom surface with the base (14). The double bottom surface allows the load of components installed on the module tray (120) to be well supported.

[0133] However, unlike the drawing, it is also possible for the base (14) not to form a bottom surface in the area where the tray base (122) is placed. In this case, the tray base (122) does not form a double bottom surface with the base (14).

[0134] That is, the tray base (122) can form a surface that is continuous with the base (14). The tray base (122) can form a bottom surface on one side of the base (14). In this case, the base (14) can guide the movement of the module tray (120). That is, the base (14) can be arranged around the tray side walls (124, 126).

[0135] In this structure, the material cost of the base (14) can be reduced. In addition, when the module tray (120) is withdrawn from the base (14), the bottom surface can be opened. In other words, the structure can be made easier to maintain other components.

[0136] Guide grooves (124a, 126a) are formed on the tray side walls (124, 126). The guide grooves (124a, 126a) form grooves inward on the tray side walls (124, 126). The guide grooves (124a, 126a) extend in the direction in which the module tray (120) moves.

[0137] Guide ribs (18a, 20a) formed on the base side wall (18, 20) of the base (14) described below can be inserted into the guide grooves (124a, 126a).

[0138] The module tray (120) includes a first tray side wall (124) and a second tray side wall (126) spaced apart from the first tray side wall (124). The first tray side wall (124) is arranged parallel to the second tray side wall (126).

[0139] The first tray side wall (124) and the second tray side wall (126) are arranged facing each other.

[0140] A compressor (102) is placed between the first tray side wall (124) and the second tray side wall (126). A condenser (104) is placed between the first tray side wall (124) and the second tray side wall (126).

[0141] A first guide groove (124a) is formed on the first tray side wall (124). A second guide groove (126a) is formed on the second tray side wall (126).

[0142] A fan (108) is placed on one side of the second tray side wall (126).

[0143] The module tray (120) includes an evaporator cover (128) that forms a space in which the evaporator (106) is placed. The module tray (120) includes a fan cover (130) that forms a space in which the fan (108) is placed.

[0144] The evaporator cover (128) is placed on one side of the fan cover (130).

[0145] The module tray (120) may include an upper cover (132) positioned above the evaporator cover (128) and the fan cover (130). The evaporator cover (128), the fan cover (130), and the upper cover (132) may also be formed integrally.

[0146] The evaporator cover (128) may be provided with a side tip (128a) that protrudes toward the filter device (40) on the side facing the filter device (40). The side tip (128a) may be inserted into a side groove (52a) formed in the filter device (40) to be described below.

[0147] That is, when the module tray (120) is mounted on the base (14), the side tip (128a) is inserted into the side groove (52a) of the filter device (40).

[0148] Referring to Fig. 10, the part connected to the heat pump module at the base is described.

[0149] The base (14) includes base side walls (18, 20) extending in the direction of movement of the module tray (120). The base (14) includes a first base side wall (18) and a second base side wall (20) spaced apart from the first base side wall (18).

[0150] The first base side wall (18) is positioned facing the first tray side wall (124). The second base side wall (20) is positioned facing the second tray side wall (126).

[0151] A first guide rib (18a) is arranged on the first base side wall (18). When the module tray (120) is mounted on the base (14), the first guide rib (18a) is inserted into the first guide groove (124a) of the first tray side wall (124).

[0152] A second guide rib (20a) is arranged on the second base side wall (20). When the module tray (120) is mounted on the base (14), the second guide rib (20a) is inserted into the second guide groove (126a) of the second tray side wall (126).

[0153] Referring to Figures 11 and 12, the end walls of the base are described.

[0154] The base (14) includes an end wall (22) that is bent and extended from the second base side wall (20). The end wall (22) can form a space in which a washing pump (34) is placed.

[0155] The base (14) includes an end wall (22) with which one end of the module tray (120) comes into contact.

[0156] A spacer (22a) is arranged on the end wall (22) to limit the upward movement of the module tray (120). The module tray (120) may be arranged below the spacer (22a). The spacer (22a) may be arranged to be spaced upward by a certain distance from the bottom surface of the base (14).

[0157] When the heat pump module (100) is mounted on the base (14), a part of the module tray (120) can be placed below the spacing projection (22a).

[0158] Referring to Fig. 13, the coupling relationship on one side of the filter device and the heat pump module is described.

[0159] An outlet (44) open toward the evaporator (106) is formed on one side of the filter device (40). The filter device (40) includes a peripheral wall (46) forming the outlet (44).

[0160] The perimeter wall (46) includes an upper wall (48) positioned above the discharge port (44) and a lower wall (50) positioned below the discharge port (44).

[0161] The perimeter wall (46) includes two side walls (52, see Fig. 13) arranged on both sides of the discharge port (44).

[0162] The filter device (40) is disposed at the upper end of the peripheral wall (46) and includes an upper tip (48a) protruding toward the evaporator (106). The filter device (40) is disposed at the lower end of the peripheral wall (46) and includes a lower tip (50a) protruding toward the evaporator (106).

[0163] The upper tip (48a) protrudes from the lower end of the upper wall (48) toward the evaporator (106). The lower tip (50a) protrudes from the upper end of the lower wall (50) toward the evaporator (106).

[0164] The upper tip (48a) is positioned below the upper wall of the evaporator cover (128). The lower tip (50a) is positioned above the lower wall of the evaporator cover (128).

[0165] The upper tip (48a) and the lower tip (50a) can maintain the arrangement of the evaporator (106). In addition, the upper tip (48a) and the lower tip (50a) can guide the left-right movement of the evaporator (106).

[0166] Referring to Fig. 14, the coupling relationship between the filter device and the heat pump module on the other side is described.

[0167] The perimeter wall (46) includes two side walls (52) arranged on both sides of the discharge port (44). A side groove (52a) is formed in each of the two side walls (52). The side groove (52a) extends in the vertical direction.

[0168] A side tip (128a) of an evaporator (106) is inserted into a side groove (52a) formed on each of the two side walls (52). When the heat pump module (100) is mounted on the base (14), the side tip (128a) is inserted into the side groove (52a). Accordingly, the left-right movement of the heat pump module (100) can be restricted.

[0169] Inside the filter device body (42), an inner rib (54) is arranged to guide air flowing through the filter (56) to the evaporator (106).

[0170] The filter device body (42) includes a filter arrangement portion (42a) in which a filter (56) is arranged, and an air guide portion (42b) in which an inner rib (54) is arranged.

[0171] The cross-sectional area of ​​the flow path from the filter arrangement (42a) to the air guide section (42b) is formed to be smaller than the cross-sectional area of ​​the discharge port (44). Therefore, the air flowing to the evaporator (106) through the discharge port (44) can flow biased toward one side of the evaporator (106).

[0172] This air flow reduces the heat exchange performance of the evaporator (106). Therefore, a plurality of inner ribs (54) are arranged inside the air guide portion (42b). The inner ribs (54) can allow the air flowing from the filter arrangement portion (42a) to flow evenly into the evaporator (106).

[0173] The plurality of inner ribs (54) may have a banded shape in the shape of the letter 'ㄱ'. The plurality of inner ribs (54) may be arranged spaced apart from each other. Each of the plurality of inner ribs (54) may extend to the outlet (44).

[0174] Hereinafter, the arrangement of the module cover and the withdrawal position of the heat pump module will be described with reference to FIGS. 15 to 1.

[0175] The module cover (70) may be positioned on one side of the base (14). As shown in FIG. 15, the module cover (70) may be positioned on the side of the base (14). In this case, when the module cover (70) is separated from the base (14), the heat pump module (100) may be pulled out laterally from the base (14). Unlike the drawing, the module cover (70) may also be positioned on the side opposite to the structure of FIG. 15.

[0176] When the heat pump module (100) is structured to be extendable laterally from the base (14), the module cover (70) is convenient to install. The module cover (70) can be placed in the gap formed between the base (14) and the tub (10).

[0177] If the heat pump module (100) is structured to be extendable laterally from the base (14), it can be convenient to form an air flow path toward the rear of the dishwasher. In addition, in the built-in structure, there is an advantage in that the heat pump module (100) can be extended by extending the dishwasher only by a width in the front-back direction from the sink installation location.

[0178] Additionally, the module cover (70) may be placed in front of the base (14) as in Fig. 16, or may be placed in the rear of the base (14) as in Fig. 17.

[0179] In the case of a structure in which the heat pump module (100) can be withdrawn forward of the base (14), the cover plate (not shown) of the dishwasher's mop holder (toe kick) can be disassembled and withdrawn. In addition, in the case of a built-in structure, there is an advantage in that only the heat pump module (100) can be withdrawn forward without having to separately withdraw the entire dishwasher configuration.

[0180] In the case of Fig. 16, when the module cover (70) is separated from the base (14), the heat pump module (100) can be pulled forward from the base (14).

[0181] Additionally, in the case of FIG. 17, when the module cover (70) is separated from the base (14), the heat pump module (100) can be pulled out to the rear of the base (14).

[0182] The rear of the base (14) may have a structure that is relatively rigid compared to the front or side in order to support the load of the tub (10). Therefore, a structure that allows the heat pump module (100) to be withdrawn to the rear of the base (14) can ensure structural stability even when the heat cover module (100) is withdrawn from the base (14).

[0183] That is, it is possible to place and withdraw the heat pump module in an appropriate position depending on the arrangement of the space between the base (14) and the tub (10). The arrangement of the heat pump module (100) can be determined depending on the arrangement of the module cover (70). In addition, the module tray (120) can also be installed so that it can be withdrawn in all directions, rearward, forward, and laterally, of the base (14).

[0184] Although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present disclosure pertains without departing from the gist of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea or prospect of the present disclosure.

Claims

1. Tub; A sump placed below the tub and storing water supplied to the tub; A base placed below the above sump; Includes a heat pump module that heats water supplied from the sump to the tub, A dishwasher in which the above heat pump module is detachably mounted on the base.

2. In paragraph 1, It further includes a filter device connected to the heat pump module and filtering air flowing to the heat pump, A dishwasher in which the heat pump module is connected to the filter device when the heat pump module is mounted on the base.

3. In paragraph 1, A dishwasher, wherein the heat pump module includes a module tray that is slidably connected to the base.

4. In paragraph 3, The above heat pump module, A compressor that compresses the refrigerant; A condenser for heating the water supplied to the above tub; An evaporator that exchanges heat between the refrigerant and air; including a fan that forms air flow to the above evaporator, A dishwasher in which the compressor, the condenser, and the evaporator are arranged on the module tray.

5. In paragraph 4, It further includes a filter device connected to the heat pump module and filtering air flowing to the heat pump, A dishwasher in which the filter device is connected to the evaporator when the heat pump module is mounted on the base.

6. In paragraph 3, A dishwasher including a module cover coupled to the base to fix the arrangement of the module tray.

7. In paragraph 1, It further includes a filter device connected to the heat pump module and filtering air flowing to the heat pump, The above base includes an exhaust duct that discharges air outside the base, A dishwasher wherein, when the heat pump module is mounted on the base, the heat pump module is placed between the exhaust duct and the filter device.

8. In paragraph 1, The above heat pump module includes a module tray that is detachably placed on the base, a compressor that is placed on the module tray, and a condenser that is placed on the module tray and heats water. The above module tray includes a first tray side wall and a second tray side wall spaced apart from and arranged parallel to the first tray side wall, A dishwasher in which the compressor and the condenser are arranged between the first tray side wall and the second tray side wall.

9. In paragraph 8, The above base is, It includes a first base side wall arranged to face the first tray side wall, and a second base side wall arranged to face the second tray side wall, A first guide rib protruding in the direction in which the first tray side wall is arranged is arranged on the first base side wall. A second guide rib protruding in the direction in which the second tray side wall is arranged is arranged on the second base side wall. A first guide groove into which the first guide rib is inserted is formed on the first tray side wall, A dishwasher in which a second guide groove into which the second guide rib is inserted is formed on the second tray side wall.

10. In paragraph 1, The heat pump module includes a module tray that is detachably arranged on the base, and the base includes an end wall that contacts one end of the module tray and a separation protrusion that protrudes from the end wall. The above-mentioned spacing projections are spaced upwards at a certain distance from the bottom surface of the base, A dishwasher in which, when the heat pump module is mounted on the base, the module tray is positioned below the spacer.

11. In paragraph 1, It further includes a filter device connected to the heat pump module and filtering air flowing to the heat pump, The above heat pump module includes a module tray that is detachably placed on the base, and an evaporator that is placed on the module tray and exchanges heat between refrigerant and air, and an outlet opening toward the evaporator is formed on one side of the filter device. The above filter device includes a peripheral wall forming the outlet, The above perimeter wall includes an upper wall positioned above the outlet and a lower wall positioned below the outlet, A dishwasher in which the upper wall and the lower wall guide the left-right movement of the evaporator.

12. In paragraph 11, The above heat pump module includes a module tray that is detachably arranged on the base, The above module tray includes an evaporator cover that forms a space in which the evaporator is placed, An upper tip is disposed at the lower end of the upper wall, protruding toward the evaporator, and positioned below the upper wall of the evaporator cover. A dishwasher comprising a lower tip protruding from the upper portion of the lower wall toward the evaporator and positioned above the lower wall of the evaporator cover.

13. In paragraph 12, The above perimeter wall includes two side walls arranged on both sides of the outlet, On each of the two side walls, a side groove extending in the vertical direction is formed, The above evaporator cover includes a side tip that protrudes in the direction in which the filter device is arranged so as to be inserted into the side groove, A dishwasher in which the side tip is inserted into the side groove when the heat pump module is mounted on the base.

14. In paragraph 1, It further includes a filter device connected to the heat pump module and filtering air flowing to the heat pump, The above filter device includes a filter device body forming a space in which a filter is placed inside, a connector placed on the upper portion of the filter device body and forming an intake port, and a cap placed on top of the connector. A dishwasher wherein the cap is detachably positioned from the connector.

15. In paragraph 14, The above cap is connected to the connector on the bottom plate of the above tub, A dishwasher wherein when the cap is separated from the connector, the filter is pulled out above the bottom plate of the tub.

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