Dishwasher heat pump device

Abstract

A dishwasher heat pump device is disclosed. The dishwasher includes a door, a front end, and a rear end. The dishwasher heat pump device has a first air inlet channel and a first receiving cavity. Along the thickness direction, the front end and the rear end are located on opposite sides of the first receiving cavity, and the door and the front end are located on the same side of the first receiving cavity. The front end has a first air outlet. The first air inlet channel includes an air inlet, and both the first air inlet channel and the first air outlet are connected to the first receiving cavity. The dishwasher heat pump device includes a first air heat exchanger located in the first receiving cavity. Along the height direction, the first receiving cavity and the first air outlet are located on the same side of the first air inlet channel. In this application, the first air inlet channel and the first air outlet of the dishwasher heat pump device are both connected to the first receiving cavity. Along the height direction, the first receiving cavity and the first air outlet are located on the same side of the first air inlet channel, which reduces the mutual influence between the air outlet and the air inlet, thereby improving the heat exchange efficiency of the first air heat exchanger and contributing to the energy saving of the dishwasher heat pump device.

Description

Technical Field

[0001] This invention belongs to the field of dishwasher technology, and specifically relates to a dishwasher heat pump device. Background Technology

[0002] Dishwashers include a high-temperature cleaning stage and a drying stage. The high-temperature cleaning stage requires rinsing pots and pans with hot water at a certain temperature to remove stubborn grease. After the cleaning stage, the dishwasher needs to dry the water droplets on the surface of the dishes and utensils to prevent bacteria from growing on the surface of the dishes and utensils in a humid environment and causing hygiene hazards. Due to the limitation of the placement of the dishwasher's heat pump device, the air intake around the evaporator during the high-temperature cleaning stage has a certain impact on the heat exchange efficiency of the dishwasher's heat pump device.

[0003] In related technologies, the heat exchange efficiency of the air heat exchanger in the dishwasher heat pump device is relatively low, which is not conducive to energy saving. Summary of the Invention

[0004] The inventors discovered that in the related technology, the dishwasher housing includes a front end and a rear end. The front end is provided with an air inlet and an air outlet. Along the height direction of the dishwasher, the air inlet and the air outlet are located at the same height, which causes the air intake of the dishwasher's air inlet and the air outlet of the air outlet to affect each other, reducing the heat exchange efficiency of the air heat exchanger in the dishwasher.

[0005] The purpose of this application is to provide a dishwasher heat pump device. The dishwasher includes a housing, which includes a door, a front end, and a rear end. The dishwasher heat pump device has a first air inlet channel and a first receiving cavity. Along the thickness direction of the dishwasher heat pump device, the front end and the rear end are respectively located on both sides of the first receiving cavity, and the door and the front end are located on the same side of the first receiving cavity.

[0006] The front end has a first air outlet, the first air inlet channel includes an air inlet, both the first air outlet and the air inlet are connected to the external environment of the dishwasher heat pump device, and both the first air inlet channel and the first air outlet are connected to the first receiving cavity.

[0007] The dishwasher heat pump device includes a first air heat exchanger located in the first receiving cavity. The thickness direction Z perpendicular to the dishwasher heat pump device is defined as the height direction H. Along the height direction H, the first receiving cavity and the first air outlet are located on the same side of the first air inlet channel.

[0008] In this application, the dishwasher heat pump device has a first air inlet channel and a first air outlet. The first air inlet channel has an air inlet, and both the first air inlet channel and the first air outlet are connected to the first receiving cavity. Along the height direction, the first receiving cavity and the first air outlet are located on the same side of the first air inlet channel, which reduces the mutual influence between the air outlet and the air inlet of the first air inlet channel, thereby improving the heat exchange efficiency of the first air heat exchanger and contributing to the energy saving of the dishwasher heat pump device. Attached Figure Description

[0009] Figure 1 A front view structural schematic diagram of a dishwasher according to one embodiment of this application;

[0010] Figure 2 for Figure 1 A schematic diagram of the washing chamber of a dishwasher;

[0011] Figure 3 for Figure 1 A schematic diagram of the rear structure of a dishwasher;

[0012] Figure 4 This is a schematic diagram of the bottom end of the dishwasher's heat pump unit;

[0013] Figure 5 for Figure 4 Schematic diagram of the central electronic control device;

[0014] Figure 6 for Figure 5 A schematic diagram of another embodiment of the central electronic control device;

[0015] Figure 7 for Figure 4 A cross-sectional structural diagram of the isolation section of the heat pump unit in a dishwasher.

[0016] Figure 8 for Figure 4 An exploded view of the chassis, filter, and bottom end of the heat pump unit in a dishwasher.

[0017] Figure 9 for Figure 4 An enlarged schematic diagram of the first air inlet channel of the heat pump unit in the dishwasher;

[0018] Figure 10 This is a top view of the components within the first receiving cavity of the dishwasher heat pump device in this application.

[0019] Figure 11 for Figure 10 A schematic diagram of the structure of the first plate and the second plate in the heat pump unit of the dishwasher;

[0020] Figure 12 for Figure 10A schematic cross-sectional view of the first and second plates in the heat pump unit of a dishwasher.

[0021] Figure 13 for Figure 11 Schematic diagram of the structure of the first and second flow channels in the middle section;

[0022] Figure 14 for Figure 11 A schematic cross-sectional view of the first plate section.

[0023] Figure 15 for Figure 11 A schematic cross-sectional view of the second plate section.

[0024] Figure 16 for Figure 12 Enlarged diagram of A in the middle;

[0025] Figure 17 for Figure 10 A structural diagram showing the positional relationship between the second air heat exchanger, the first condenser, and the second fan;

[0026] Figure 18 for Figure 10 A schematic diagram showing the positional relationship of the first condenser in the heat pump unit of the dishwasher.

[0027] Figure 19 for Figure 10 A schematic diagram of the structure of the second condenser in the heat pump unit of the dishwasher;

[0028] Figure 20 for Figure 10 Exploded structural diagram of the heat pump unit in the dishwasher's second condenser;

[0029] Figure 21 for Figure 1 A system schematic diagram of one embodiment of a heat pump system for a dishwasher;

[0030] Figure 22 for Figure 1 A system schematic diagram of another embodiment of the dishwasher heat pump system. Detailed Implementation

[0031] To better understand the technical solution of this application, the application will be described below with reference to the relevant accompanying drawings.

[0032] Figures 1 to 19The diagram shows a dishwasher heat pump device conforming to this application. The dishwasher includes a housing 700, which includes a door 403, a front end 1610, and a rear end 1611. The dishwasher heat pump device has a first air inlet channel 1601 and a first receiving cavity 100. Along the thickness direction Z of the dishwasher heat pump device, the front end 1610 and the rear end 1611 are located on opposite sides of the first receiving cavity 100, and the door 403 and the front end 1610 are located on the same side of the first receiving cavity 100. The front end 1610 includes an air outlet 1602, which has a first air outlet 16021. The first air inlet channel 1601 has an air inlet. Both the first air outlet 16021 and the air inlet are connected to the external environment of the dishwasher heat pump device. Both the first air outlet 16021 and the first air inlet channel 1601 are connected to the first receiving cavity 100.

[0033] refer to Figure 11 and Figure 12 As shown, in some embodiments, the dishwasher heat pump device includes a first air heat exchanger 17 located in a first receiving cavity 100, which is connected to a first air inlet channel 1601. The thickness direction Z perpendicular to the dishwasher heat pump device is defined as the height direction H. Along the height direction H, the first receiving cavity 100 and the first air outlet 16021 are located on the same side of the first air inlet channel 1601.

[0034] In this application, the dishwasher heat pump device has a first air inlet channel 1601 and a first air outlet 16021. The first air inlet channel 1601 has an air inlet. Both the first air inlet channel 1601 and the first air outlet 16021 are connected to the first receiving cavity 100. Along the height direction, the first receiving cavity 100 and the first air outlet 16021 are located on the same side of the first air inlet channel 1601, which reduces the mutual influence between the first air outlet 16021 and the first air inlet channel 1601, increases the air intake of the dishwasher heat pump device, and thus improves the heat exchange efficiency of the first air heat exchanger 17, which is beneficial to the energy saving of the dishwasher heat pump device.

[0035] refer to Figure 4 , Figure 7 and Figure 9 As shown, in some embodiments, the dishwasher heat pump device includes an isolation section 166, which has a vent 1663. The vent 1663 is connected to a first air inlet channel 1601, and a first receiving cavity 100 is connected to the vent 1663. Along the height direction, the first receiving cavity 100 and the first air inlet channel 1601 are located on both sides of the isolation section 166. The air from the external environment of the dishwasher heat pump device can enter the first receiving cavity 100 through the first air inlet channel 1601 and the vent 1663, and then exchange heat with the first air heat exchanger 17.

[0036] refer to Figure 9 As shown, in some embodiments, the air inlet includes a first air inlet 1613 and a second air inlet 1617. Along the thickness direction Z, the first air inlet 1613 and the front end portion 1610 are located on the same side of the first receiving cavity 100, and the first air inlet 1613 and the second air inlet 1617 are respectively located on both sides of the first air inlet channel 1601; the rear end portion 1611 includes a rear side plate 16111. Along the thickness direction Z, the second air inlet 1617 is closer to the first air heat exchanger 17 than the rear side plate 16111. Since the rear side plate in related technologies is generally close to the wall, the second air inlet 1617 of this application is closer to the wall than the rear side plate 16111. The rear panel 16111 is closer to the first air heat exchanger 17, so that when the dishwasher heat pump device is normally placed, the second air inlet 1617 is further away from the wall. At the same time, the first air inlet channel 1601 is provided in this application, and the first air inlet 1613 of the first air inlet channel 1601 is in front of the dishwasher heat pump device and does not contact the wall. Outside air enters the first air inlet channel 1601 from the first air inlet 1613 and the second air inlet 1617, and then enters the first receiving cavity 100 through the vent 1663, which increases the air intake of the first receiving cavity 100 and thus improves the heat exchange effect of the first air heat exchanger.

[0037] refer to Figure 7 , Figure 8 and Figure 9 As shown, in some embodiments, the rear end 1611 includes a first air inlet plate 501, which has a first ventilation hole 5011 that communicates with the external environment of the dishwasher heat pump device and with the first receiving cavity 100. Along the height direction, the first air inlet plate 501 is located on one side of the second air inlet 1617. The first air inlet plate 501 has multiple air inlets that communicate with the external environment of the dishwasher heat pump device. Along the thickness direction Z, the first air inlet plate 501 is closer to the first air heat exchanger 17 than the rear side plate 16111. The first air inlet plate 501 is provided with multiple air inlets, and the first air inlet plate 501 is closer to the first air heat exchanger 17 along the thickness direction Z, so that when the dishwasher heat pump device is normally placed, the first air inlet plate 501 is away from the wall, thereby increasing the air intake inside the dishwasher heat pump device.

[0038] refer to Figure 2As shown, in some embodiments, the dishwasher heat pump device includes a top portion 162 and a bottom portion 160, which are located on opposite sides of the housing 700 along the height direction. The bottom portion 160 includes a chassis 1614, and the wall forming the first air inlet channel 1601 includes at least a portion of the upper wall of the chassis 1614 and at least a portion of the lower wall of the isolation portion 166. The chassis 1614 has a groove 16141, at least a portion of which can be used to collect fluid, i.e., a water collection tray, to receive fluid (such as washing liquid) leaking from the dishwasher heat pump device, reducing leakage outside the dishwasher heat pump device. Furthermore, in some embodiments, the chassis 1614 is mounted on the bottom portion 160, and there is a gap between the chassis 1614 and the ground, so it can be pulled out from the front portion 1610 for easy cleaning of the chassis 1614 and fluid discharge.

[0039] refer to Figure 8 As shown, in some embodiments, the dishwasher heat pump device includes a filter device 1616, which is directly connected to the isolation part 166. The wall forming the first air inlet channel 1601 includes at least a portion of the upper wall of the chassis 1614 and at least a portion of the lower wall of the filter device 1616. The filter device 1616 has filter holes that communicate with the first air inlet channel 1601 and with the vent 1663. The filter device 1616 can filter dust, lint, and other impurities in the air entering the first receiving cavity 100 from the first air inlet channel 1601. The filter device 1616 can be pulled out from the front end 1610 for easy cleaning.

[0040] refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, in some embodiments, the front end portion 1610 includes an air outlet 1602, which has a first air outlet 16021 that communicates with the external environment. Along the height direction, the air outlet 1602 is located on one side of the first air inlet channel 1601, and there is a gap between the air outlet 1602 and the first air inlet 1613. This can reduce the mutual influence between the air inlet and outlet and improve the heat exchange efficiency. The dishwasher heat pump device includes a first fan 18, which is located in the first receiving cavity 100. Along the thickness direction Z of the dishwasher heat pump device, the first fan 18 is located between the air outlet 1602 and the first air heat exchanger 17. Further, the first fan 18 is an exhaust fan that can drive the air in the first receiving cavity 100 to exchange heat with the first air heat exchanger 17.

[0041] refer to Figure 4 , Figure 5 and Figure 6As shown, in some embodiments, the dishwasher heat pump device includes an electronic control device 165 located in the first receiving cavity, and at least a portion of the electronic control device 165 is directly connected to the isolation portion 166; the dishwasher heat pump device has a first air duct 400, and the wall forming the first air duct 400 includes at least a portion of the side wall of the electronic control device 165 and at least a portion of the side wall of the first air inlet plate 501; the first air duct 400 communicates with the first receiving cavity 100.

[0042] refer to Figure 9 As shown, in some embodiments, the electronic control device 165 includes a heat dissipation section 1653, at least a portion of which is located in the first air duct 400; along the thickness direction Z of the dishwasher heat pump device, the first air inlet 5011 and the heat dissipation section 1653 are respectively located on both sides of the first air duct 400; the air in the first air duct 400 can carry away the heat of the heat dissipation section 1653 to achieve heat dissipation of the electronic control device 165; in some embodiments, the first control section 1650 includes a power module section (not shown) and a first control board 1661, the power module section is electrically connected to the first control board 1661, the heat dissipation section 1653 is connected to the power module section, and the power module section is connected to the first control board 1661.

[0043] Furthermore, in some embodiments, the power module is directly connected to the heat dissipation unit 1653. The material of the heat dissipation unit 1653 can be selected from aluminum alloy, copper, etc., and the shape of the heat dissipation unit 1653 includes, but is not limited to, plate-shaped, sheet-shaped, multi-sheet-shaped, etc., specifically selected from heat sinks. In this application, the power module is electrically connected to the first control board 1661. The power module is used to control the operation of the heat pump system of the dishwasher heat pump device. The power module will generate heat when the system is running. If the heat is too high, the power module will malfunction, affecting the operation of the dishwasher heat pump device. Therefore, by directly connecting the power module to the heat dissipation unit 1653, the heat dissipation unit 1653 can dissipate the heat of the power module, and then the air of the first air duct 400 can carry away the heat of the heat dissipation unit 1653 to dissipate heat from the electronic control device 165, so that the dishwasher heat pump device can operate better. The contact surface between the power module and the heat dissipation unit 1653 can also include a heat-conducting layer, so that the heat generated by the power module can be more effectively conducted to the heat dissipation unit 1653, and then dissipated to the surrounding environment by the heat dissipation unit 1653.

[0044] In some embodiments, the dishwasher heat pump device includes a drive fan 1654, which is at least partially located in the first air duct 400 and connected to an electronic control device 165. The electronic control device 165 includes a first connecting portion 1655 and a second connecting portion 1656, which are fixedly connected or integrally formed. Along the thickness direction Z, the first connecting portion 1655 and the first air inlet plate 501 are located on opposite sides of the first air duct 400. The wall forming the first air duct 400 includes at least a portion of the sidewall of the first connecting portion 1655, at least a portion of the sidewall of the second connecting portion 1656, and at least a portion of the bottom wall of the bottom end portion 160. The first connecting part 1655 has a first mounting groove 16551, and at least part of the first control board 1661 is located in the first mounting groove 16551. Along the thickness direction Z of the dishwasher heat pump device, the first connecting part 1655 and the first air inlet plate 501 are respectively located on both sides of the first air duct 400. Further, along the thickness direction Z of the dishwasher heat pump device, the first control part 1650 and the first air inlet plate 501 are respectively located on both sides of the first air duct 400. The wind from the outside environment can enter the first air duct 400 through the first air inlet 5011 of the first air inlet plate 501, thereby dissipating heat from the heat dissipation part 1653 of the electronic control device 165, so that the dishwasher heat pump device can operate better.

[0045] refer to Figure 4 and Figure 9 As shown, in some embodiments, the dishwasher heat pump device includes a second control board 1662, a second connection portion 1656 having a second mounting groove 16552, at least a portion of the second control board 1662 being located in the second mounting groove 16552, a first mounting groove 16551 being able to communicate with the second mounting groove 16552, and the second control board 1662 being used to control various washing modes of the dishwasher heat pump device, such as heating mode, drying mode, etc.

[0046] In some embodiments, the electronic control device 165 includes a third connecting portion 1657, which is fixedly connected to or integrally formed with the first connecting portion 1655, the second connecting portion 1656, and the third connecting portion 1657. The third connecting portion 1657 is connected to the bottom end portion 160 and extends from the first connecting portion 1655 toward the first air inlet plate 501 along the thickness direction Z of the dishwasher heat pump device. The wall forming the first air duct 400 includes at least a portion of the sidewall of the third connecting portion 1657. The third connecting portion 1657 has a second air outlet, and at least a portion of the drive fan 1654 is located at the second air outlet. Specifically, the drive fan 1654 is an exhaust fan, which can drive the air from the external environment of the dishwasher heat pump device to be drawn into the first air duct 400, and then remove the heat from the electronic control device 165 to achieve the purpose of heat dissipation.

[0047] In some embodiments, the electronic control device 165 includes a fourth connecting portion 1660, wherein the first connecting portion 1655, the second connecting portion 1656, the third connecting portion 1657 and the fourth connecting portion 1660 are fixedly connected or integrally formed; the fourth connecting portion 1660 is connected to the bottom end portion 160, and extends from the first connecting portion 1655 toward the first air inlet plate 501 along the thickness direction Z of the dishwasher heat pump device; the horizontal direction X is defined as perpendicular to the thickness direction Z of the dishwasher heat pump device, and along the horizontal direction X, the third connecting portion 1657 and the fourth connecting portion 1660 are respectively located on both sides of the first air duct 400, forming a wall of the first air duct 400 including at least a portion of the sidewall of the fourth connecting portion 1660; furthermore, along the horizontal direction X, the drive fan 1654 and the fourth connecting portion 1660 are respectively located on both sides of the first air duct 400, and the heat dissipation portion 1653 is located between the fourth connecting portion 1660 and the fourth connecting portion 1660. Between the drive fan 1654; the electronic control device 165 is provided with a fourth connection part 1660, at least part of the heat dissipation part 1653 is located in the first air duct 400, and the heat dissipation part 1653 is located between the fourth connection part 1660 and the drive fan 1654. Along the thickness direction Z, the heat dissipation part 1653 and the first air inlet plate 501 are respectively located on both sides of the first air duct 400. The design of the first connection part 1655, the second connection part 1656, the third connection part 1657 and the fourth connection part 1660 can make the first air duct 400 have only one second air outlet. In this way, the air drawn into the first air duct 400 by the drive fan 1654 from the first air inlet 5011 of the first air inlet plate 501 can pass through the heat dissipation part 1653, reducing the air volume in the first air duct 400 that does not pass through the heat dissipation part 1653, improving the heat dissipation efficiency of the electronic control device 165, and then enters the first receiving cavity 100 through the second air outlet of the first air duct 400.

[0048] refer to Figure 6As shown, in another embodiment, the electronic control device 165 includes a first connecting portion 1655 and a second connecting portion 1656, which are fixedly connected or integrally formed; the dishwasher heat pump device includes a bottom end portion 160, with the first connecting portion 1655 connected to the bottom end portion 1656. Along the thickness direction X of the dishwasher heat pump device, the first connecting portion 1655 and the first air inlet plate 501 are respectively located on both sides of the first air duct 400; the height direction H is defined as the direction perpendicular to the thickness direction Z of the dishwasher heat pump device, and the height direction H is parallel to the height direction. Along the height direction H, the second connecting portion 1656 and the bottom end portion 1656 are respectively located on both sides of the first air duct 400. Both sides of the air duct 400; the wall forming the first air duct 400 includes at least a portion of the side wall of the first connecting portion 1655 and at least a portion of the side wall of the second connecting portion 1656; the first connecting portion 1655 has a first mounting groove 16551, at least a portion of the first control portion 1650 is located in the first mounting groove 16551, and the drive fan 1654 is connected to the first air inlet plate 501; along the thickness direction Z of the dishwasher heat pump device, the first connecting portion 1655 and the first air inlet plate 501 are arranged opposite to each other; further, along the thickness direction Z of the dishwasher heat pump device, the first control portion 1650 and the drive fan 1654 are arranged opposite to each other, and the drive fan 1654 is selected from an exhaust fan. This design can operate according to the heat dissipation requirements of the electronic control device 165. When the heat dissipation requirements of the electronic control device 165 are small, the drive fan 1654 can be turned off, and the ambient air can be used to enter the first air duct 400 to dissipate heat from the electronic control device. When the heat dissipation requirements of the electronic control device 165 are large, the drive fan 1654, i.e., the exhaust fan, can be turned on. The drive fan 1654 can bring the ambient air into the first air duct 400 through the first air inlet 5011 of the first air inlet plate 501, thereby dissipating heat from the electronic control device 165 and achieving a better heat dissipation effect.

[0049] In some embodiments, the front end portion 1610 of the dishwasher has an air inlet, which can be one, two, or multiple. Further, the front end portion 1610 includes a first air inlet 1603 with multiple air inlets. The horizontal direction X is defined as perpendicular to the thickness direction Z of the dishwasher heat pump device, and the horizontal direction X is perpendicular to the height direction. Along the horizontal direction X, the first air inlet 1603 is located on one side of the air outlet 1602. Along the thickness direction Z of the dishwasher heat pump device, the first air inlet 1603 and the first air inlet plate 501 are respectively located on the first air heat exchanger 17. The application adopts a method of simultaneous air intake from both the front and rear ends. The front end 1610 is provided with a first air intake 1603, which has multiple air inlets. This allows air to pass through at least part of the surface of the first air heat exchanger 17 from the front end 1610. The rear end 1611 is provided with a first air intake plate 501 and the bottom end 160 is provided with a first air intake channel 1601. This allows air entering the first receiving cavity 100 to pass through the middle and lower part of the first air heat exchanger 17, which is beneficial to the uniform distribution of the air field on the surface of the first air heat exchanger 17, enhances the heat exchange effect, and improves the heat exchange efficiency.

[0050] refer to Figure 2 , Figure 10 and Figure 11 As shown, in some embodiments, the dishwasher heat pump device includes a first cavity 200 and a washing cavity 300, the first cavity 200 being at least partially located in the first receiving cavity 100, and the inner cavity of the first cavity 200 communicating with the inner cavity of the washing cavity 300; the dishwasher heat pump device includes a first condenser 21 and a second condenser 13, the first condenser 21 being located in the first receiving cavity 100, and the second condenser 13 being located in the inner cavity of the first cavity 200.

[0051] In some embodiments, the dishwasher heat pump device includes a compressor 11, a second fan 22, and a second air heat exchanger 23. Along the thickness direction Z of the dishwasher heat pump device, the first fan 18 is located on one side of the first air heat exchanger 17 and can drive the heat from the surrounding environment to exchange heat with the first air heat exchanger 17. The second fan 22 and the second air heat exchanger 23 are both located within the first cavity 200. The second fan 22 is located between the first condenser 21 and the second air heat exchanger 23 to reduce the influence of the heat around the first condenser 21 and the second air heat exchanger 23. The direction perpendicular to the thickness direction Z is defined as horizontal X. Along the horizontal direction X, the compressor 11 is located on one side of the first air heat exchanger 17.

[0052] refer to Figures 12 to 16As shown, in some embodiments, the dishwasher heat pump device includes a first plate portion 201 and a second plate portion 202, both of which are connected to the first cavity 200. The first plate portion 201 and the second plate portion 202 are fixedly connected or integrally formed. The first plate portion 201 has a first flow channel 211 and a first flow channel opening 203, and the second plate portion 202 has a second flow channel 212 and a second flow channel opening 204. The first flow channel opening 203 communicates with the first flow channel 211, and the second flow channel opening 204 communicates with the second flow channel 212. Both the first flow channel 211 and the second flow channel 212 communicate with the inner cavity of the first cavity 200. The first flow channel opening 203 is used to connect the first flow channel 211 with the inner cavity of the dishwasher washing cavity 300, and the second flow channel opening 204 is used to connect the second flow channel 212 with the inner cavity of the dishwasher washing cavity 300. Along the height direction H, the second flow channel 204 is closer to the first cavity 200 than the first flow channel 203. By setting the first flow channel 203 and the second flow channel 204 at different heights, the high-temperature gas in the inner cavity of the dishwasher washing cavity 300 can enter the inner cavity of the first cavity 200 through the first flow channel 211 from the first flow channel 203. After passing through the first cavity 200, it exchanges heat with the first evaporator 23 and becomes medium-temperature or low-temperature gas, thereby drying and dehumidifying the inside of the dishwasher washing cavity 300. The inner cavity of the first cavity 200 is connected to the inner cavity of the dishwasher washing cavity 300, but not to the first receiving cavity 100, reducing the entry of impurities from the external environment into the washing cavity 300, thereby reducing secondary contamination of the dishes in the washing cavity 300.

[0053] In some embodiments, the dishwasher heat pump device has a horizontal direction X and a vertical direction H. Both the horizontal direction X and the vertical direction H of the dishwasher heat pump device are perpendicular to the thickness direction Z of the dishwasher heat pump device. Along the horizontal direction X of the dishwasher heat pump device, the first plate portion 201 and the second plate portion 202 are located on one side of the dishwasher washing cavity 300, which can make the internal structure of the dishwasher heat pump device more compact, thereby reducing the volume of the dishwasher.

[0054] refer to Figure 13As shown, the first plate portion 201 includes an air inlet section 2015 and a first extension section 2016. The air inlet section 2015 includes a first end portion 20151 and a first connecting portion 20152. The first extension section 2016 includes a second connecting portion 20153 and a third connecting portion 20154. Along the thickness direction Z of the dishwasher, the first end portion 20151 is farther away from the second connecting portion 20153 relative to the first connecting portion 20152. A first flow channel 203 is disposed at the first end portion 20151. Along the height direction H, the third connecting portion 20154... The first connecting part 20152 is closer to the first cavity 200 than the second connecting part 20153, and is directly connected to the second connecting part 20153; the first flow channel 211 has a first sub-flow channel 2111 and a second sub-flow channel 2112, the first sub-flow channel 2111 and the second sub-flow channel 2112 are connected, the first sub-flow channel 2111 passes through the first connecting part 20152, the second sub-flow channel 2112 passes through the second connecting part 20153 and the third connecting part 20154, and the first flow channel opening 203 is connected to the first sub-flow channel 2111.

[0055] In some embodiments, the direction from the first end 20151 to the first connecting portion 20152 is defined as the first extending direction X-1, and the direction from the second connecting portion 20153 to the third connecting portion 20154 is defined as the second extending direction X-2. The first extending direction X-1, the second extending direction X-2, and the thickness direction Z of the dishwasher heat pump device are all located within the projection plane. The first extending direction X-1 is parallel to the thickness direction Z of the dishwasher heat pump device. Alternatively, along the height direction H, the first connecting portion 20152 is farther away from the first cavity 200 relative to the first end 20151, and the angle between the first extending direction X-1 and the thickness direction Z of the dishwasher heat pump device is an acute angle or a right angle. This can reduce the amount of washing liquid entering the first cavity 200 from the dishwasher washing cavity 300, and also reduce the local turbulence caused by the high-temperature and high-humidity gas entering the first cavity 200 through the first flow channel 203, while also reducing the resistance along the flow path.

[0056] In some embodiments, the direction in which the second connecting portion 20153 extends toward the third connecting portion 20154 is defined as the second extending direction X-2. The first extending direction X-1, the second extending direction X-2, and the thickness direction Z of the dishwasher heat pump device are located in the same plane perpendicular to the horizontal direction Z of the dishwasher heat pump device. The angle between the second extending direction X-2 and the first extending direction X-1 is θ1, which is 90° < θ1 < 180°. Designing such a turning structure can reduce the amount of washing liquid entering the first cavity 200 from the dishwasher washing cavity 300, thus enabling the dishwasher heat pump device and the dishwasher to operate better.

[0057] refer to Figure 13 and Figure 14As shown, further, in some embodiments, the first plate portion 201 includes a second extension 2017, which is directly connected to the first extension 2016. The first flow channel 211 has a third sub-flow channel 2113, and the first sub-flow channel 2111, the second sub-flow channel 2112, and the third sub-flow channel 2113 are connected. The second extension 2017 includes a fifth end 20155 and a sixth end 20156, and the third sub-flow channel 2113 passes through the fifth end 20155 and the sixth end 20156. The direction in which the fifth end 20155 extends towards the sixth end 20156 is defined as the third extension direction X-3. The first extension direction X-1, the second extension direction X-2, the third extension direction X-3, and the thickness direction Z of the dishwasher heat pump device are located in the same plane perpendicular to the horizontal direction X of the dishwasher heat pump device. The angle θ2 between the third extension direction X-3 and the second extension direction X-2 is 0°≤θ2<90°. Furthermore, 0°<θ2<90° can reduce the amount of washing liquid entering the first cavity 200 in the dishwasher washing cavity 300, and at the same time alleviate the generation of local turbulence, and also facilitate the installation design of the first plate 201. Multiple extension sections such as the fourth extension section and the fifth extension section can also be designed according to the internal structure.

[0058] refer to Figure 13 and Figure 15 As shown, in some embodiments, the second plate portion 202 includes an air outlet section 2018 and a first straight section 2019. The air outlet section 2018 includes a first side portion 20181 and a second side portion 20182, and the first straight section 2019 includes a third side portion 20183 and a fourth side portion 20184. Along the thickness direction Z of the dishwasher heat pump device, the first side portion 20181 is farther away from the third side portion 20183 relative to the second side portion 20182, and the second flow channel 204 is disposed on the first side portion 20181. Along the height direction H of the dishwasher heat pump device, the fourth side portion 20184 is farther away from the third side portion 20183. The third side 20183 is closer to the first cavity 200, and the height direction H of the dishwasher heat pump device is perpendicular to the thickness direction Z of the dishwasher heat pump device; the second side 20182 is directly connected to the third side 20183; the second flow channel 212 has a first branch flow channel 2121 and a second branch flow channel 2122, the first branch flow channel 2121 and the second branch flow channel 2122 are connected, the first branch flow channel 2121 passes through the second side 20182, the second branch flow channel 2122 passes through the third side 20183 and the fourth side 20184, and the second flow channel opening 204 is connected to the first branch flow channel 2121.

[0059] In some embodiments, the direction from the first side 20181 to the second side 20182 is defined as the first tilting direction Y-1, and the direction from the third side 20183 to the fourth side 20184 is defined as the second tilting direction Y-2. The first tilting direction Y-1, the second tilting direction Y-2, and the thickness direction Z of the dishwasher heat pump device are all located in the same plane perpendicular to the horizontal direction X of the dishwasher heat pump device. The first tilting direction Y-1 is parallel to the thickness direction Z of the dishwasher heat pump device. Alternatively, along the height direction H of the heat pump device, the second side 20182 is farther away from the first cavity 200 relative to the first side 20181, and the angle between the first tilting direction Y-1 and the thickness direction Z of the dishwasher heat pump device is an acute angle or a right angle. This can further reduce the amount of washing liquid entering the first cavity 200 in the washing cavity 300 and can also alleviate the generation of local turbulence.

[0060] In some embodiments, along the height direction H of the dishwasher heat pump device, the first connecting portion 20152 is not lower than the first flow channel opening 203, and the second side portion 20182 is not lower than the second flow channel opening 204. By optimizing the structure of the air inlet section 2015 and the air outlet section 2018, the amount of washing liquid entering the first cavity 200 in the dishwasher washing cavity 300 during the washing process can be further reduced, and the wind resistance along the way can also be reduced.

[0061] It should be understood that the first extension direction X-1, the second extension direction X-2, the third extension direction X-3, the first tilt direction Y-1 and the second tilt direction Y-2 are all unidirectional, and the other directions are bidirectional unless otherwise specified.

[0062] refer to Figure 16 As shown, in some embodiments, the second plate portion 202 includes a first plate surface 2021, and the side surface forming the second flow channel 212 includes at least a portion of the first plate surface 2021; the second plate portion 202 includes a guide portion 2022, which is disposed in the air outlet section 2018, and has a guide surface that intersects with the first plate surface 2021; the guide portion 2022 includes a first guide end 2023 and a second guide end 2024, and along the thickness direction Z of the dishwasher heat pump device, the first guide end 2023 is closer to the second flow channel opening 204 than the second guide end 2024. Furthermore, in some embodiments, the guide surface is curved and bends toward the second flow channel 204 along the height direction H of the dishwasher heat pump device. This can reduce the local turbulence or eddies generated by the high-heat gas in the first cavity 200 in the air outlet section 2018, and enable the air in the first cavity 200 to be guided to the second flow channel 204 and enter the dishwasher washing cavity 300.

[0063] refer to Figure 15As shown, in some embodiments, a plane perpendicular to the thickness direction Z of the dishwasher heat pump device is defined as the cross section 1001 of the second plate portion 202. The cross section 1001 includes a first cross section 1002 and a second cross section 1003. Along the height direction H of the dishwasher heat pump device, the first cross section 1002 is closer to the second flow channel opening 204 than the second cross section 1003. The first cross section 1002 intersects with the air outlet section 2018 to form a first connecting port 1004, and the second cross section 1003 intersects with the air outlet section 2018 to form a second connecting port 1005. The flow area of ​​the first connecting port 1004 is smaller than the flow area of ​​the second connecting port 1005. Both the first connecting port 1004 and the second connecting port 1005 are connected to the second flow channel 212.

[0064] In some embodiments, the air outlet section 2018 may be provided with at least two guide sections 2022, with a gap between adjacent guide sections 2022, and multiple narrow flow channels may be formed between adjacent guide sections 2022. That is, at least two first connecting ports 1004 are obtained by the first cross section 1002 intersecting with the air outlet section 2018, and at least two second connecting ports 1005 are obtained by the second cross section 1003 intersecting with the air outlet section 2018. The flow area of ​​the first connecting port 1004 is smaller than the flow area of ​​the second connecting port 1005. This can guide the airflow in the first cavity 200 to the second flow channel 204, reduce the turbulence or eddies generated by the airflow in the first cavity 200 in the air outlet section 2018, and reduce fluid resistance.

[0065] In some embodiments, the dishwasher heat pump device includes a connecting section 2011, to which both the first plate portion 201 and the second plate portion 202 are connected. Part of the connecting section 2011 is fixedly connected to or integrally formed with the first plate portion 201, and part of the connecting section 2011 is fixedly connected to or integrally formed with the second plate portion 202. This can enhance the strength of the first plate portion 201 and the second plate portion 202, increase the integrity of the parts, and improve assembly efficiency.

[0066] refer to Figure 13 As shown, in some embodiments, the connecting section 2011 includes a first connecting section 2031 and a second connecting section 2032. One end of the first connecting section 2031 is connected to the air inlet section 2015, and the other end of the first connecting section 2031 is connected to the air outlet section 2018. One end of the second connecting section 2032 is connected to the first extension section 2016, and the other end of the second connecting section 2032 is connected to the air outlet section 2018. The connecting section 2011 has a cavity 2012, and both the first flow channel 211 and the second flow channel 212 are isolated from the cavity 2012. The cavity 2012 in the connecting section 2011 can reduce the amount of materials used and lower production costs, while also making the dishwasher heat pump device lighter.

[0067] In some embodiments, the connecting section 2011 includes a first baffle 2013 and a second baffle 2014. The first baffle 2013 includes a first sidewall 20131 and a second sidewall 20132, with the first sidewall 20131 facing away from the second sidewall 20132. The wall forming the cavity 2012 includes at least a portion of the first sidewall 20131 of the first baffle 2013 and at least a portion of the sidewall of the second baffle 2014. The wall forming the first flow channel 211 includes at least a portion of the second sidewall 20132 of the first baffle 2013, and the wall forming the second flow channel 212 includes at least a portion of the second sidewall 20132 of the first baffle 2013. The first baffle 2013 separates the first flow channel 211 from the cavity 2012, and the cavity 2012 is not connected to the first flow channel opening 203 or the second flow channel opening 204.

[0068] In some embodiments, the first plate portion 201 includes a first side plate 2041 and a second side plate 2042, the wall forming the first flow channel 211 includes at least a portion of the side wall of the first side plate 2041 and at least a portion of the side wall of the second side plate 2042, the second plate portion 202 includes a third side plate 2043 and a fourth side plate 2044, the wall forming the second flow channel 212 includes at least a portion of the side wall of the third side plate 2043 and at least a portion of the side wall of the fourth side plate 2044, and both the third side plate 2043 and the fourth side plate 2044 are directly connected to the flow guide portion 2022.

[0069] Reference image Figure 11 As shown, in some embodiments, the dishwasher includes a liquid collection section 29, with a first air heat exchanger 17 located between the first fan 18 and the liquid collection section 29. This allows for the placement of a larger volume first air heat exchanger 17, thereby improving the heat exchange efficiency of the dishwasher heat pump device. Along the height direction, a second condenser 13 is located below the liquid collection section 29, and the second condenser 13 is coiled around at least a portion of the surface of the bottom wall 160. This allows for a more compact arrangement of the components of the dishwasher heat pump device, reducing the volume of the dishwasher heat pump device.

[0070] refer to Figure 19 and Figure 20 As shown, in some embodiments, the second condenser 13 includes a first tube 133 and a second tube 134. The second tube 134 is partially located inside the first tube 133. The first tube 133 includes a refrigerant flow path, and the second tube 134 includes a washing liquid flow path. The refrigerant flow path and the washing liquid flow path can exchange heat, thereby increasing the temperature of the washing liquid in the washing liquid flow path. A drain pump is provided on the second tube 134 to reduce the problem of deterioration and odor caused by long-term storage of the washing liquid in the second condenser 13.

[0071] In some embodiments, the dishwasher includes a water treatment device 28, at least a portion of which is located in the first cavity 100. Along the horizontal direction X, the compressor 11 and the water treatment device 28 are located on opposite sides of the liquid collection section 29. Along the thickness direction Z, the compressor 11 is closer to the first air heat exchanger 17 than the liquid collection section 29. The first air heat exchanger 17 can utilize the waste heat generated by the compressor 11 for heat exchange. The compressor 11 is located outside the first cavity 200. This arrangement of the positions of the compressor 11, the water treatment device 28, and the first air heat exchanger 17 allows for a more compact design of the dishwasher heat pump device components, reducing the overall size of the dishwasher heat pump device. The water treatment device 28 in this application includes a water softener and a breather.

[0072] Figures 21 to 22 The diagram shown is a schematic of a dishwasher heat pump system conforming to this application. The dishwasher heat pump system includes a first condenser 21 and a first air heat exchanger 17. The dishwasher heat pump system has an inner cavity 100. The first condenser 21 is located in the inner cavity 100. The dishwasher heat pump system includes a first cavity 200. The first air heat exchanger 17 is located in the first cavity 200. The inner cavity 100 is in communication with the external environment.

[0073] In some embodiments, the dishwasher heat pump system includes a first agent-side flow path a, a first agent-side branch path b, and a second agent-side branch path c. The first agent-side flow path a, the first agent-side branch path b, and the second agent-side branch path c are all used for circulating heat exchange fluid. The dishwasher heat pump system includes a first valve 12, which has a first valve port 121, a second valve port 122, and a third valve port 123. The first valve 12 is used to control the connection between the first agent-side flow path a and the first agent-side branch path b or the second agent-side branch path c. A first condenser 21 is disposed on the second agent-side branch path c.

[0074] In some embodiments, the dishwasher heat pump system further includes a second agent-side flow path d, a third agent-side branch path h, a fourth agent-side branch path g, and a first fluid flow path f. The second agent-side flow path d, the third agent-side branch path h, and the fourth agent-side branch path g are all used for circulating heat exchange fluid, and the first fluid flow path f is used for circulating fluid. The first agent-side branch path b, the second agent-side branch path c, the third agent-side branch path h, and the fourth agent-side branch path g are all connected to the first agent-side flow path a and the second agent-side flow path d. A first air heat exchanger 17 is disposed in the fourth agent-side branch path g. The dishwasher heat pump system includes a compressor 11 and a first fan 18. The compressor 11 is disposed in the first agent-side flow path d, and the first fan 18... The fan 18 is located in the first cavity 100. The first fan 18 is close to the first air heat exchanger 17, and the first air heat exchanger 17 is close to the compressor 11. When the first fan 18 is started, it can change the direction of the airflow entering the dishwasher heat pump system from the external environment, so that the air passes through the compressor 11 and then through the first air heat exchanger 17 to form the first flow ventilation duct 500. On the one hand, it can dissipate heat from the compressor, reduce the impact of the heat generated by the compressor 11 on the operation of internal parts, such as the motor, and thus improve the service life of the compressor 11. On the other hand, it can use the waste heat generated by the compressor 11 for heat exchange in the first air heat exchanger 17, achieving the effect of high efficiency and energy saving.

[0075] In some embodiments, the dishwasher heat pump system includes a second condenser 13, which is partially disposed in the second refrigerant-side branch b and partially disposed in the first fluid flow path f. The second condenser 13 includes a heat exchange tube 132 and a sleeve 131. The heat exchange tube 132 is used to flow a heat exchange fluid, and the sleeve 131 is used to flow a fluid. The pipe of the heat exchange tube 132 is connected to the second refrigerant-side branch b, and the pipe of the sleeve 131 is connected to the first fluid flow path f. The heat exchange fluid (such as refrigerant) in the heat exchange tube 132 releases a large amount of heat after condensation, which can heat the fluid (such as water) in the sleeve 131.

[0076] In some embodiments, the dishwasher heat pump system includes a dryer filter 15, which is disposed in the second agent side flow path d to filter impurities in the heat exchange fluid flowing in the second agent side flow path d, thereby reducing the content of harmful impurities in the heat exchange fluid, such as solid contaminants and corrosive substances. At the same time, it can also filter moisture in the heat exchange fluid to reduce the freezing of the heat exchange fluid on other components, so as to ensure the normal operation of the dishwasher heat pump system.

[0077] In some embodiments, the dishwasher heat pump system includes a first one-way valve 14, a second one-way valve 124, a first throttle valve 16, and a second throttle valve 20. The first one-way valve 14 is located in the first agent-side branch b, the second one-way valve 124 is located in the second agent-side branch c, the first throttle valve 16 is located in the fourth agent-side branch g, and the second throttle valve 20 is located in the third agent-side branch h. The first one-way valve 14 is connected to the second condenser 13 and the dryer filter 15, respectively. The second one-way valve 124 is connected to the first condenser 21 and the dryer filter 15, respectively. The first throttle valve 16 and the second throttle valve 20 are both connected to the dryer filter 15.

[0078] In some embodiments, the dishwasher heat pump system includes a first temperature and pressure sensor 191, a second temperature and pressure sensor 192, and a heat exchange fluid filling valve 19. The first temperature and pressure sensor 191, the second temperature and pressure sensor 192, and the heat exchange fluid filling valve 19 are all disposed in the first agent-side flow path a. The first temperature and pressure sensor 191 and the second temperature and pressure sensor 192 are used to measure the temperature and pressure of the heat exchange fluid in the first agent-side flow path a, and the heat exchange fluid filling valve 19 is used to adjust the filling amount of the heat exchange fluid to ensure that there is sufficient heat exchange fluid in the flow path.

[0079] In some embodiments, the dishwasher heat pump system includes a second air heat exchanger 23, a second fan 22, a water collection tank 29, and a spray section 30. The dishwasher heat pump system includes a washing chamber 300. The second air heat exchanger 23 and the second fan 22 are both located inside the first chamber 200, and the spray section 30 is located inside the washing chamber 300. The inner cavity of the first chamber 200 is connected to the inner cavity of the washing chamber 300. When the second fan 22 is started, the inner cavity of the first chamber 200 forms a second flow ventilation duct 600, and the air in the second flow ventilation duct 600 is introduced into the washing chamber 300. The second flow ventilation duct 600 circulates in the inner cavity of the first chamber 200 and the inner cavity of the washing chamber 300, realizing heat exchange between the fluid in the second flow ventilation duct 600 and the first condenser 21 and the second air heat exchanger 23. The second flow ventilation duct 600 circulates in a closed cavity.

[0080] refer to Figure 21As shown, in some embodiments, the dishwasher heat pump system includes a second fluid flow path m, a third fluid flow path n, and a fourth fluid flow path e. The second fluid flow path m, the third fluid flow path n, and the fourth fluid flow path e are all used for fluid circulation. A water collection tank 29 is connected to the second fluid flow path m, and the first fluid flow path f and the third fluid flow path n are both connected to the second fluid flow path m. The dishwasher heat pump system also includes a second valve 25, a first water pump 24, a water inlet valve 27, a water softener 32, and a breather 28. The second valve 25 includes a fourth valve port 251, a fifth valve port 252, and a sixth valve port 253. 25 is used to control the connection between the second fluid flow path m and the first fluid flow path f or the third fluid flow path n; the first water pump 24 is set in the third fluid flow path n to drive the flow of fluid in the flow path. The third fluid flow path n is connected to the spray section 30. The fluid in the spray section 30 is sprayed into the washing chamber 300 for cleaning tableware such as bowls and chopsticks; the water inlet valve 27, water softener and breather are all set in the fourth fluid flow path e, which is connected to the water collection tank 29; the dishwasher heat pump system also includes a drain pump 26, which is connected to the water collection tank 29 for discharging waste fluid in the water collection tank 29.

[0081] refer to Figure 22 As shown, in some embodiments, the dishwasher heat pump system includes a third valve 254 located in a first fluid flow path f, and a first water pump 24 located in a second fluid flow path m. The third valve 254 is used to control the communication between the first fluid flow path f and the second fluid flow path m. The first fluid flow path f is connected to a water collection tank 29.

[0082] In some embodiments, a temperature sensor (not shown) is provided on the water collection tank 29 to monitor whether the temperature of the fluid (such as water) in the water collection tank 29 meets the cleaning temperature. When the cleaning temperature is met, the fifth valve port 252 is closed, and the fourth valve port 251 and the sixth valve port 253 are connected, that is, the second fluid flow path m is connected to the third fluid flow path n, so that the fluid in the water collection tank is sprayed into the washing chamber 300 through the spray section 30. When the cleaning temperature is not met, the fifth valve port 252 is closed, and the fourth valve port 251 and the sixth valve port 253 are connected, that is, the second fluid flow path m is connected to the first fluid flow path f, so that the fluid in the first fluid flow path f flows into the sleeve 131, exchanges heat with the heat exchange tube 132 to raise the temperature, and then the first fluid flow path f is connected to the third fluid flow path n, and then sprayed into the washing chamber 300 through the spray section 30.

[0083] The dishwasher heat pump system in this application includes a cleaning mode and a drying mode. In some embodiments, the cleaning mode is divided into a heat exchange fluid circulation path and a coolant circulation path. The heat exchange fluid circulation path is as follows: the first fan 18 operates, and the high-temperature, high-pressure gas heat exchange fluid discharged from the compressor 11 flows through the first valve 12 into the heat exchange tube 132 of the second condenser 13 for condensation, releasing a large amount of heat to heat the fluid in the sleeve 131. After passing through the first one-way valve 14 and the dryer filter 15, it enters the first throttling valve 16 for throttling, becoming a gas-liquid two-phase system after throttling. The heat exchange fluid then enters the first air heat exchanger 17. A first fan 18 is installed near the first air heat exchanger 17. The first fan 18 drives the air from the surrounding environment through the compressor 11 into the first air heat exchanger 17, and then through the first fan 18 to be discharged into the outside environment, forming a first flow ventilation duct 500. On the one hand, it can dissipate heat from the compressor 11 and improve the service life of the compressor 11. On the other hand, the first air heat exchanger 17 can use the waste heat generated by the compressor 11 for heat exchange. After absorbing heat in the first air heat exchanger 17, the heat exchange fluid becomes a low-temperature, low-pressure gas and returns to the compressor 11.

[0084] In some embodiments, during the cleaning mode, the fluid circulation path is as follows: the first water pump 24 is started, the coolant stored in the water collection tank 29 enters the second valve 25, the sixth valve port 253 is closed, the fourth valve port 251 is connected to the second valve port 252, the fluid enters the sleeve 131 for heating, then flows through the third fluid flow path n, and is sprayed into the washing chamber 300 through the spray section 30. The sprayed fluid flows back to the water collection tank 29, realizing a fluid flow cycle; when the fluid in the water collection tank 29 meets the cleaning temperature, the fourth valve port 251 is connected to the sixth valve port 253, the fifth valve port 252 is closed, the fluid in the water collection tank 29 flows through the second fluid flow path m, then through the second valve 25 and through the third fluid flow path n, enters the spray section 30 and is sprayed into the washing chamber 300. The sprayed fluid flows back to the water collection tank 29, realizing a fluid flow cycle.

[0085] In some embodiments, under the cleaning mode, the fluid circulation path is as follows: the first water pump 24 starts, the coolant stored in the water collection tank 29 enters the second fluid flow path m, the third valve 254 is opened, and the second fluid flow path m is connected to the first fluid flow path f and the third fluid flow path n respectively. The fluid in the first fluid flow path f enters the sleeve 131 for heating, and then returns to the water collection tank 29; the fluid in the third fluid flow path n directly enters the spray section 30 and is sprayed into the washing chamber 300. The sprayed fluid flows back to the water collection tank 29, and the fluid that passed through the first fluid flow path f and the sprayed fluid are collected in the water collection tank. The mixture in tank 29 raises the temperature of the fluid in the collection tank 29, causing continuous circulation until the washing temperature required for tableware such as bowls and chopsticks is reached. When the washing temperature is reached, the third valve 254 closes, and the fluid in the collection tank 29 enters the third fluid flow path n through the second fluid flow path m. The fluid in the third fluid flow path n directly enters the spray section 30 and is sprayed into the washing chamber 300. The sprayed fluid flows back to the collection tank 29, realizing a fluid flow cycle. That is, the first fluid flow path f and the third fluid flow path n are connected in parallel, which can reduce the operating resistance of the first water pump 24 and achieve energy saving and high efficiency.

[0086] In some embodiments, under drying mode, the circulation path of the heat exchange fluid is as follows: The second fan 22 operates, and the high-temperature, high-pressure gaseous heat exchange fluid discharged from the compressor 11 passes through the first valve 12, with the first valve port 121 connected to the second valve port 122. The heat exchange fluid then passes through the first condenser 21, where it releases latent heat and becomes a high-temperature, high-pressure liquid heat exchange fluid. This liquid then passes through the second one-way valve 124 and the drying filter 15, and is further throttled by the second throttling valve 20, becoming a two-phase gas-liquid heat exchange fluid that enters the second air heat exchanger 23. After absorbing heat, it becomes a low-temperature, low-pressure gas and returns to the compressor. Machine 11; The flow path of the gas-liquid dual-state coolant in the second air duct 600 is as follows: the high-temperature and high-humidity gaseous coolant in the washing chamber 300 is liquefied and condensed into liquid on its surface through the second air heat exchanger 23 and discharged. Then it passes through the first condenser 21, absorbs the heat released by the first condenser 21, and becomes a high-temperature and low-humidity gas that enters the washing chamber 300. The water droplets on the surface of the tableware in the washing chamber 21 absorb heat and evaporate. The water droplets formed on the surface of the second air heat exchanger 23 are discharged from the dishwasher through the water collection tank and other equipment. In this cycle, the humidity in the washing chamber 300 will decrease until the drying requirements are met.

[0087] In this application, a first air heat exchanger 17 and a second condenser 13 are used in the cleaning mode, and a first condenser 21 and a second air heat exchanger 23 are used in the drying mode. That is, different evaporators and condensers are used in the cleaning mode and the drying mode respectively. Evaporators and condensers with different heat exchange areas can be provided according to the heat exchange needs of different modes to achieve energy saving and high efficiency. At the same time, it can also enable the dishwasher heat pump system to operate better.

[0088] It should be noted that the refrigerants mentioned in this application include, but are not limited to, R22, R32, R290, R410A, etc.; the washing liquid includes, but is not limited to, water, cleaning agents, and liquids mixed with water and cleaning agents.

[0089] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this application, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the technical solution of this application.

Claims

1. A dishwasher heat pump arrangement, characterized in that, The dishwasher includes a housing (700), which includes a door (403), a front end (1610), and a rear end (1611). The dishwasher heat pump device has a first air inlet channel (1601) and a first receiving cavity (100). Along the thickness direction (Z) of the dishwasher heat pump device, the front end (1610) and the rear end (1611) are located on opposite sides of the first receiving cavity (100), and the door (403) and the front end (1610) are located on the same side of the first receiving cavity (100). The front end (1610) has a first air outlet (16021), the first air inlet channel (1601) includes an air inlet, the first air outlet (16021) and the air inlet are both connected to the external environment of the dishwasher heat pump device, and the first air inlet channel (1601) and the first air outlet (16021) are both connected to the first receiving cavity (100); The dishwasher heat pump device includes a first air heat exchanger (17) located in the first receiving cavity (100). The thickness direction (Z) perpendicular to the dishwasher heat pump device is defined as the height direction (H). Along the height direction (H), the first receiving cavity (100) and the first air outlet (16021) are located on the same side of the first air inlet channel (1601).

2. The dishwasher heat pump arrangement according to claim 1, characterized in that The dishwasher heat pump device includes an isolation section (166) having a vent (1663) connected to the first air inlet channel (1601) and the first receiving cavity (100) connected to the vent (1663). Along the height direction (H), the first receiving cavity (100) and the first air inlet channel (1601) are located on both sides of the isolation part (166).

3. The dishwasher heat pump arrangement according to claim 1 or 2, characterized in that, The air inlet includes a first air inlet (1613) and a second air inlet (1617). Along the thickness direction (Z) of the dishwasher heat pump device, the first air inlet (1613) and the second air inlet (1617) are respectively located on both sides of the first air inlet channel (1601). The rear end (1611) includes a rear side plate (16111) along the thickness direction (Z) of the dishwasher heat pump device, and the second air inlet (1617) is closer to the first air heat exchanger (17) relative to the rear side plate (16111).

4. The dishwasher heat pump arrangement according to claim 3, characterized in that, The rear end (1611) includes a first air inlet plate (501), the first air inlet plate (501) has a first ventilation hole (5011), the first ventilation hole (5011) is connected to the external environment of the dishwasher heat pump device, and the first ventilation hole (5011) is connected to the first receiving cavity (100). Along the height direction (H), the first air inlet plate (501) is located on one side of the second air inlet (1617). The first air inlet plate (501) is provided with an air inlet hole, which is connected to the external environment of the dishwasher heat pump device. Along the thickness direction (Z) of the dishwasher heat pump device, the first air inlet plate (501) is closer to the first air heat exchanger (17) than the rear side plate (16111).

5. The dishwasher heat pump arrangement according to claim 3, characterized in that, The front end portion (1610) includes an air outlet (1602) having a first air outlet (16021). Along the thickness direction (Z) of the dishwasher heat pump device, the first air inlet (1613) and the front end portion (1610) are located on the same side of the first receiving cavity (100). Along the height direction, there is a gap between the air outlet (1602) and the first air inlet (1613). The dishwasher heat pump device includes a first fan (18) located in the first receiving cavity (100) along the thickness direction (Z) of the dishwasher heat pump device, and the first fan (18) is located between the air outlet (1602) and the first air heat exchanger (17).

6. The dishwasher heat pump arrangement according to claim 2, 4 or 5, characterized in that, The dishwasher heat pump device includes a top portion (162) and a bottom portion (160), which are located on opposite sides of the housing (700) along the height direction (H); the bottom portion (160) includes a chassis (1614), and the wall forming the first air inlet channel (1601) includes at least a portion of the upper wall of the chassis (1614) and at least a portion of the lower wall of the isolation portion (166); The chassis (1614) has a groove (16141) at least in part, which is capable of collecting fluid.

7. The dishwasher heat pump arrangement according to claim 6, characterized in that, The dishwasher heat pump device includes a filter (1616) which is directly connected to the isolation part (166). The wall forming the first air inlet channel (1601) includes at least a portion of the upper wall of the chassis (1614) and at least a portion of the lower wall of the filter (1616). The filter device (1616) has a filter hole that is connected to the first air inlet channel (1601) and the vent (1663).

8. The dishwasher heat pump arrangement according to claim 2, 4 or 5, characterized in that, The dishwasher heat pump device includes an electronic control device (165) and a first air inlet plate (501). The electronic control device (165) is located in the first receiving cavity, and at least part of the electronic control device (165) is directly connected to the isolation part (166). The dishwasher heat pump device has a first air duct (400), the wall forming the first air duct (400) includes at least a portion of the sidewall of the electronic control device (165) and at least a portion of the sidewall of the first air inlet plate (501); the first air duct (400) is in communication with the first receiving cavity (100).

9. The dishwasher heat pump device according to claim 8, characterized in that, The electronic control device (165) includes a first connecting part (1655) and a second connecting part (1656), wherein the first connecting part (1655) and the second connecting part (1656) are fixedly connected or integrally formed. Along the thickness direction (Z) of the dishwasher heat pump device, the first connecting part (1655) and the first air inlet plate (501) are respectively located on both sides of the first air duct (400); The wall forming the first air duct (400) includes at least a portion of the sidewall of the first connecting portion (1655), at least a portion of the sidewall of the second connecting portion (1656), and at least a portion of the bottom wall of the bottom end portion (160).

10. The dishwasher heat pump device according to claim 9, characterized in that, The electronic control device (165) includes a first control unit (1650), the first connection part (1655) having a first mounting groove (16551); at least a portion of the first control unit (1650) is located in the first mounting groove (16551); The electronic control device (165) includes a heat dissipation section (1653), at least a portion of which is located in the first air duct (400). The heat dissipation section (1653) is disposed in the first control section (1650) and is capable of dissipating heat from the first control section (1650). Along the thickness direction (Z) of the dishwasher heat pump device, the first control unit (1650) and the first air inlet plate (501) are located on both sides of the first air duct (400).

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