Dishwasher heat pump device and dishwasher

Abstract

A dishwasher heat pump device includes a first cavity, a first condenser and a first evaporator. The first evaporator is located inside the first cavity, and the first condenser is located around the periphery of the first cavity. The inner chamber of the first cavity is used to directly communicates only with the inner chamber of a washing cavity of a dishwasher, which can reduce contamination of the dishwasher's washing cavity from the external environment. A dishwasher includes a washing cavity and abovementioned dishwasher heat pump device. The dishwasher has a first receiving cavity, the first receiving cavity communicates with the external environment of the dishwasher, Both the first condenser and the first cavity are located in the first receiving cavity. The inner chamber of the first cavity is in direct communication only with the inner chamber of the washing cavity, so as to reduce contamination of the dishwasher's washing cavity from the external environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of dishwashers, specifically relating to a dishwasher heat pump device and dishwasher.Background Art

[0002] Currently, the heat generation for the high-temperature washing stage of dishwashers mainly adopts an electric heating mode, which has high energy consumption. As the market demands for energy efficiency ratio increase, the application of electric heating mode in dishwashers will decrease. The mainstream direction of market development is energy-saving and environmentally friendly. The application of heat pump systems in dishwashers provides a new way of heating and drying, greatly reducing energy consumption and providing a better user experience. In related technologies, when the dishwasher heat pump uses an evaporator to dehumidify the interior of the washing cavity, it exchanges heat with the external environment, which can lead to impurities from the external environment entering the washing cavity, causing contamination of the washing cavity.Summary of the Invention

[0003] The purpose of this application is to provide a dishwasher heat pump device and a dishwasher which can reduce contamination of the dishwasher's washing cavity from the external environment.

[0004] The first aspect of the present application provides a dishwasher heat pump device. The dishwasher heat pump device includes a first cavity, a first condenser and a first evaporator, the first evaporator is located inside the first cavity, and the first condenser is located around the periphery of the first cavity; an inner chamber of the first cavity is used to directly communicate only with an inner chamber of a washing cavity of a dishwasher.

[0005] In the present application, the inner chamber of the first cavity is used to directly communicate only with the inner chamber of a washing cavity of a dishwasher, which can reduce contamination of the dishwasher's washing cavity from the external environment.

[0006] The second aspect of the present application provides a dishwasher. The dishwasher includes a washing cavity and a dishwasher heat pump device; the dishwasher heat pump device includes a first cavity, a first condenser and a first evaporator, the first evaporator is located inside the first cavity, and the first condenser is located around the periphery of the first cavity; the dishwasher has a first receiving cavity, the first receiving cavity communicates with the external environment of the dishwasher, both the first condenser and the first cavity are located in the first receiving cavity, and an inner chamber of the first cavity is in direct communication only with an inner chamber of the washing cavity.

[0007] In this application, the dishwasher includes a first cavity and a washing cavity, with the first evaporator located inside the first cavity, and the inner chamber of the first cavity is in direct communication only with the inner chamber of the washing cavity, which can reduce contamination of the dishwasher's washing cavity from the external environment.Brief Description of the Drawings

[0008] Figure 1 is a schematic stereogram of a dishwasher according to one embodiment of this application; Figure 2 is a schematic diagram of a front end portion and a washing cavity of the dishwasher in Figure 1; Figure 3 is a rear view schematic diagram of the dishwasher in Figure 1; Figure 4 is a schematic stereogram of a dishwasher according to another embodiment of this application; Figure 5 is a schematic diagram of a first receiving cavity and a base of the dishwasher in Figure 4; Figure 6 is a schematic diagram of a compressor, a second evaporator and a first fan of a dishwasher heat pump device according to one embodiment of this application; Figure 7 is a schematic stereogram of a dishwasher heat pump device according to one embodiment of this application; Figure 8 is a sectional view schematic diagram of a first plate portion and a second plate portion of the dishwasher heat pump device in Figure 7; Figure 9 is a schematic diagram showing the positional relationship of a compressor, a first evaporator, a first fan, a first condenser, a second evaporator, a second fan and a second condenser of the dishwasher heat pump device in Figure 4; Figure 10 is a top view schematic diagram of a water treatment device, a liquid collecting portion, a first cavity and an electric control device of the dishwasher in Figure 1; Figure 11 is a schematic stereogram of a dishwasher heat pump device according to another embodiment of this application; Figure 12 is a sectional view schematic diagram of a first plate portion and a second plate portion of the dishwasher heat pump device in Figure 11; Figure 13 is a schematic diagram of an air inlet section, a first extending section, a second extending section, an air outlet section and a first straight section of the dishwasher heat pump device in Figure 12; Figure 14 is a sectional view schematic diagram of the first plate portion in Figure 12; Figure 15 is a sectional view schematic diagram of the second plate portion in Figure 12; Figure 16 is an enlarged schematic diagram of A in Figure 12; Figure 17 is a schematic diagram showing a positional relationship of a first evaporator, a first fan, a second evaporator, a second fan and a second condenser of the dishwasher heat pump device in Figure 1; Figure 18 is a schematic diagram of a front end portion of the dishwasher in Figure 1; Figure 19 is a schematic diagram of the front end portion and an electric control device of the dishwasher in Figure 1; Figure 20 is a sectional view schematic diagram of the electric control device in Figure 19; Figure 21 is a schematic diagram of a dishwasher heat pump system according to one embodiment of this application; and Figure 22 is a schematic diagram of a dishwasher heat pump system according to another embodiment of this application. Detailed Description of Embodiments

[0009] To facilitate understanding of this application, the following description will refer to the relevant drawings.

[0010] The first aspect of the application provides a dishwasher heat pump device 1000. Referring to Figures 6 to 17, the dishwasher heat pump device 1000 includes a first cavity 200, a first condenser 13 and a first evaporator 23, the first evaporator 23 is located inside the first cavity 200, and the first condenser 13 is located around the periphery of the first cavity 200. An inner chamber of the first cavity 200 is used to directly communicate only with an inner chamber of a washing cavity 300 of a dishwasher 1010. According to the dishwasher heat pump device 100 of this application, the inner chamber of the first cavity 200 is used to directly communicate only with the washing cavity 300 of the dishwasher 1010, which can reduce contamination of the dishwasher's washing cavity from the external environment.

[0011] Referring to Figures 8 and 12, in some embodiments, the dishwasher heat pump device 1000 includes a first plate portion 201 and a second plate portion 202, and both the first plate portion 201 and the second plate portion 202 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 passage opening 203, and the second plate portion 202 has a second flow channel 212 and a second flow passage opening 204. The first flow passage opening 203 communicates with the first flow channel 211, the second flow passage opening 204 communicates with the second flow channel 212, and both the first flow channel 211 and the second flow channel 212 communicate with the inner chamber of the first cavity 200, the first flow passage opening 203 is used to connect the first flow channel 211 with the inner chamber of the washing cavity 300, and the second flow passage opening 204 is used to connect the second flow channel 212 with the inner chamber of the washing cavity 300.

[0012] In this application, the dishwasher heat pump device has a horizontal direction X, a height direction H and a thickness direction Z, both the horizontal direction X of the dishwasher heat pump device 1000 and the height direction H of the dishwasher heat pump device 1000 are perpendicular to the thickness direction Z of the dishwasher heat pump device 1000, and the horizontal direction X of the dishwasher heat pump device 1000 is perpendicular to the height direction H of the dishwasher heat pump device 1000. Along the horizontal direction X of the dishwasher heat pump device 1000, the first plate portion 201 and the second plate portion 202 are located on the same side of the first cavity 200.

[0013] In some embodiments, along the height direction H of the dishwasher heat pump device 1000, the second flow passage opening 204 is closer to the first cavity 200 relative to the first flow passage opening 203. By setting the first flow passage opening 203 and the second flow passage opening 204 at different heights, high-temperature gas in the washing cavity 300 can enter the inner chamber of the first cavity 200 through the first flow passage opening 203 and the first flow channel 211, then pass through the first cavity 200, exchange heat with the first evaporator 23 to become medium or low-temperature gas, thereby drying and dehumidifying the inner chamber of the washing cavity 300. The inner chamber of the first cavity 200 is used to directly communicates only with the inner chamber of the washing cavity 300, so as to reduce impurities from the external environment entering the washing cavity 300, thereby reducing secondary contamination of dishes in the washing cavity 300.

[0014] Referring to Figures 12 and 13, the first plate portion 201 includes an air inlet section 2015 and a first extending section 2016, the air inlet section 2015 includes a first end portion 20151 and a first connection portion 20152, the first extending section 2016 includes a second connection portion 20153 and a third connection portion 20154, and the first connection portion 20152 is directly connected to the second connection portion 20153. Along the thickness direction Z of the dishwasher heat pump device 1000, the first end portion 20151 is farther from the second connection portion 20153 relative to the first connection portion 20152, and the first flow passage opening 203 is set on the first end portion 20151. Along the height direction H of the dishwasher heat pump device 1000, the third connection portion 20154 is closer to the first cavity 200 relative to the second connection portion 20153. The thickness direction Z of the dishwasher heat pump device 1000 is perpendicular to the height direction H of the dishwasher heat pump device 1000. The first flow channel 211 includes a first sub-flow channel 2111 and a second sub-flow channel 2112, the first sub-flow channel 2111 communicates with the second sub-flow channel 2112, the first sub-flow channel 2111 extends through the first connection portion 20152, the second sub-flow channel 2112 extends through the second connection portion 20153 and the third connection portion 20154, and the first flow passage opening 203 communicates with the first sub-flow channel 2111.

[0015] A first extending direction X-1 is defined as a direction pointing from the first end portion 20151 to the first connection portion 20152, and a second extending direction X-2 is defined as a direction pointing from the second connection portion 20153 to the third connection portion 20154, and 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 within a plane perpendicular to the horizontal direction X of the dishwasher heat pump device. The first extending direction X-1 is parallel to the thickness direction Z of the dishwasher heat pump device 1000; or, along the height direction H of the dishwasher heat pump device 1000, the first connection portion 20152 is farther from the first cavity 200 relative to the first end portion 20151, and an angle between the first extending direction X-1 and the thickness direction Z of the dishwasher is an acute angle or a right angle. On one hand, this can reduce the washing liquid in the washing cavity 300 from entering the first cavity 200, and on the other hand, it can reduce local turbulence caused by high-temperature and high-humidity gas entering the first cavity 200 from the washing cavity 300 through the first flow passage opening 203, while also reducing flow resistance along the path.

[0016] In some embodiments, an angle between the second extending direction X-2 and the first extending direction X-1 is defined as θ1, and θ1 meets the following formula: 90° < θ1 < 180°. Designing such a turning structure can reduce washing liquid from the washing cavity 300 entering the first cavity 200, allowing the dishwasher to operate better.

[0017] Referring to Figure 13, furthermore, in some embodiments, the first plate portion 201 includes a second extending section 2017, the second extending section 2017 is directly connected to the first extending section 2016. The first flow channel 211 has a third sub-flow channel 2113, and the first sub-flow channel 2111 and the second sub-flow channel 2112 communicate with the third sub-flow channel 2113. The second extending section 2017 includes a fourth connection portion 20155 and a fifth connection portion 20156, the third sub-flow channel 2113 runs through the fourth connection portion 20155 and the fifth connection portion 20156. A third extending direction X-3 is defined as a direction from the fourth connection portion 20155 extending to the fifth connection portion 20156, an angle between the third extending direction X-3 and the second extending direction X-2 is defined as θ2, and θ2 meets the following formula: 0° ≤ θ2 < 90°, which can reduce washing liquid from the washing cavity 300 entering the first cavity 200, while alleviating local turbulence and facilitating the installation design of the first plate portion 201. Furthermore, θ2 meets the following formula: 0° < θ2 < 90°. Multiple extending sections such as a fourth extending section, a fifth extending section and the like can also be designed according to the internal structure.

[0018] Referring to Figures 13 and 14, 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, the second flow passage opening 204 is set on the first side portion 20181;, the first straight section 2019 includes a third side portion 20183 and a fourth side portion 20184, and the second side portion 20182 is directly connected to the third side portion 20183. Along the thickness direction Z of the dishwasher heat pump device 1000, the first side portion 20181 is farther from the third side portion 20183 relative to the second side portion 20182. Along the height direction H of the dishwasher heat pump device 1000, the fourth side portion 20184 is closer to the first cavity 200 relative to the third side portion 20183. The second flow channel 212 includes a first branch flow channel 2121 and a second branch flow channel 2122, the first branch flow channel 2121 communicates with the second branch flow channel 2122, the first branch flow channel 2121 extends through the second side portion 20182, the second branch flow channel 2122 extends through the third side portion 20183 and the fourth side portion 20184, and the second flow passage opening 204 communicates with the first branch flow channel 2121.

[0019] In some embodiments, a first inclined direction Y-1 is defined as a direction pointing from the first side portion 20181 to the second side portion 20182, a second inclined direction Y-2 is defined as a direction pointing from the third side portion 20183 to the fourth side portion 20184, the first inclined direction Y-1, the second inclined direction Y-2 and the thickness direction Z of the dishwasher heat pump device are all within a plane perpendicular to the horizontal direction (X) of the dishwasher heat pump device. The first inclined direction Y-1 is parallel to the thickness direction Z of the dishwasher heat pump device 1000; or, along the height direction H of the dishwasher heat pump device 1000, the second side portion 20182 is farther from the first cavity 200 relative to the first side portion 20181, and an angle between the first inclined direction Y-1 and the thickness direction Z of the dishwasher heat pump device 1000 is an acute angle or a right angle, which can further reduce washing liquid from the washing cavity 300 entering the first cavity 200, while also alleviating local turbulence.

[0020] In some embodiments, along the height direction H of the dishwasher heat pump device 1000, the first connection portion 20152 is not lower than the first flow passage opening 203, the second side portion 20182 is not lower than the second flow passage opening 204. By optimizing the structure of the air inlet section 2015 and the air outlet section 2018, it further reduces washing liquid from the washing cavity 300 entering the first cavity 200 during the washing process, while also reducing flow resistance along the path.

[0021] It should be understood that the first extending direction X-1, the second extending direction X-2, the third extending direction X-3, the first inclined direction Y-1 and the second inclined direction Y-2 are all unidirectional, while other directions are bidirectional unless otherwise specified.

[0022] Referring to Figure 15, in some embodiments, a cross-section 1001 is defined as a plane perpendicular to the thickness direction Z of the dishwasher heat pump device 1000, 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 1000, the first cross-section 1002 is closer to the second flow passage opening 204 relative to the second cross-section 1003. A first communication port 1004 is obtained by intersecting the air outlet section 2018 by the first cross-section 1002, and a second communication port 1005 is obtained by intersecting the air outlet section 2018 by the second cross-section 1003, and the flow area of the first communication port 1004 is smaller than the flow area of the second communication port 1005. Both the first communication port 1004 and the second communication port 1005 communicate with the second flow channel 212.

[0023] In some embodiments, the dishwasher heat pump device 1000 includes a guiding portion 2022, the guiding portion 2022 is partially located in the air outlet section 2018, and there is a gap between the guiding portion 2022 and the side wall of the second flow channel 212. The guiding portion 2022 includes a first guiding end portion 2023 and a second guiding end portion 2024, and along the thickness direction Z of the dishwasher heat pump device 1000, the first guiding end portion 2023 is closer to the second flow passage opening 204 relative to the second guiding end portion 2024.

[0024] Referring to Figure 13, the second plate portion 202 includes a first plate surface 2021, a side face forming the second flow channel 212 includes at least part of the first plate surface 2021. The second plate portion 202 includes a guiding portion 2022, the guiding portion 2022 is set in the air outlet section 2018, the guiding portion 2022 has a guiding surface that intersects with the first plate surface 2021; the guiding portion 2022 includes a first guiding end portion 2023 and a second guiding end portion 2024, along the thickness direction Z of the dishwasher heat pump device 1000, the first guiding end portion 2023 is closer to the second flow passage opening 204 relative to the second guiding end portion 2024. Furthermore, in some embodiments, the guiding surface is a curved surface, along the height direction H, the guiding surface curves towards the second flow passage opening 204, which can reduce local turbulence or vortices generated by high-temperature gas from the first cavity 200 in the air outlet section 2018, and can guide the air from the first cavity 200 to flow into the washing cavity 300 through the second flow passage opening 204.

[0025] In some embodiments, the air outlet section 2018 can be set with at least two guiding portions 2022, there is a gap between adjacent two guiding portions 2022, multiple narrow flow channels can be formed between adjacent guiding portions 2022. That is, at least two first communication ports 1004 can be formed by intersecting the air outlet section 2018 with the first cross-section 1002 and forms, and at least two second communication ports 1005 can be formed by intersecting the air outlet section 2018 with the second cross-section 1003, the flow area of the first communication port 1004 is smaller than the flow area of the second communication port 1005, which can guide the airflow from the first cavity 200 to flow to the second flow passage opening 204, which can reduce turbulence or vortices generated by the airflow from the first cavity 200 in the air outlet section 2018, thereby reducing fluid wind resistance.

[0026] In some embodiments, the dishwasher heat pump device includes a connecting section 2011, both the first plate portion 201 and the second plate portion 202 are connected to the connecting section 2011, the first plate portion 201 is fixedly connected to or integrally formed with the connecting section 2011, and the second plate portion 202 is fixedly connected to or integrally formed with the connecting section 2011, which can enhance the strength of the first plate portion 201 and the second plate portion 202, increasing the integrity of the parts, and improving assembly efficiency.

[0027] Referring to Figures 13, 14 and 15, 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 extending 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 of the connecting section 2011 can reduce related material usage, lower production costs, and make the dishwasher more lightweight.

[0028] In some embodiments, the second plate portion 202 includes a first baffle 2013 and a second baffle 2014, the first baffle 2013 includes a first side wall 20131 and a second side wall 20132, and the first side wall 20131 faces away from the second side wall 20132. The wall forming the cavity 2012 includes at least part of the first side wall 20131 and at least part of the side wall of the second baffle 2014. The wall forming the first flow channel 211 includes at least part of the second side wall 20132, and the wall forming the second flow channel 212 includes at least part of the second side wall 20132. The first baffle 2013 isolates the first flow channel 211 from the cavity 2012, and the cavity 2012 does not communicate with the first flow passage opening 203 or the second flow passage opening 204.

[0029] Referring to Figures 14 and 15, 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 part of the first side plate 2041 and at least part 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 part of the third side plate 2043 and at least part of the fourth side plate 2044, and both the third side plate 2043 and the fourth side plate 2044 are directly connected to the guiding portion 2022.

[0030] Referring to Figures 8 and 9, in some embodiments, the dishwasher heat pump device 1000 includes a second evaporator 17, a second condenser 21, a first fan 18 and a second fan 22. The first evaporator 23 is in parallel connection with the second evaporator 17, the first condenser 13 is in parallel connection with the second condenser 21. Both the second condenser 21 and the second fan 22 are located inside the first cavity 200. The second fan 22 is located between the second condenser 21 and the first evaporator 23. This technical feature can be combined with at least one of the abovementioned technical features. By setting up two condensers and two evaporators, different condensers and evaporators can be selected according to different operating modes to achieve energy-saving purposes.

[0031] The second aspect of the application provides a dishwasher 1010. The dishwasher 1010 includes a washing cavity 300 and a dishwasher heat pump device 1000. The dishwasher heat pump device 1000 includes a first cavity 200, a first condenser 13 and a first evaporator 23. The first evaporator 23 is located inside the first cavity 200, and the first condenser 13 is located around the periphery of the first cavity 200). The dishwasher 1010 has a first receiving cavity 100, the first receiving cavity 100 communicates with the external environment of the dishwasher, both the first condenser 13 and the first cavity 200 are located in the first receiving cavity 100, and an inner chamber of the first cavity 200 is in direct communication only with an inner chamber of the washing cavity 300.

[0032] In some embodiments, the dishwasher heat pump device 1000 of the dishwasher 1010 includes at least one feature of the above-mentioned the dishwasher heat pump device 1000 in the first aspect of this application.

[0033] In some embodiments, the dishwasher heat pump device 1000 includes a first plate portion 201 and a second plate portion 202, and both the first plate portion 201 and the second plate portion 202 are connected to the first cavity 200. The first plate portion 201 has a first flow channel 211 and a first flow passage opening 203, the second plate portion 202 has a second flow channel 212 and a second flow passage opening 204, the first flow passage opening 203 communicates with the first flow channel 211, the second flow passage opening 204 communicates with the second flow channel 212, and both the first flow channel 211 and the second flow channel 212 communicate with the inner chamber of the first cavity 200. The first flow passage opening 203 is used to connect the first flow channel 211 with the inner chamber of the washing cavity 300, and the second flow passage opening 204 is used to connect the second flow channel 212 with the inner chamber of the washing cavity 300. Along a thickness direction Z of the dishwasher heat pump device 1000, the first plate portion 201 and the second plate portion 202 are located on the same side of the washing cavity 300.

[0034] In some embodiments, the dishwasher 1010 includes a second evaporator 17, a second condenser 21, a first fan 18 and a second fan 22. The first evaporator 23 is in parallel connection with the second evaporator 17, the first condenser 13 is in parallel connection with the second condenser 21. Both the second condenser 21 and the second fan 22 are located inside the first cavity 200. The second evaporator 17 is located in the first receiving cavity 100. The second fan 22 is located between the second condenser 21 and the first evaporator 23.

[0035] Referring to Figures 1, 3 and 4, in some embodiments, the dishwasher includes a housing 700, the housing 700 includes a door portion 403, a front end portion 1610 and a rear end portion 1611. Along the thickness direction Z of the dishwasher heat pump device 1010, the door portion 403 and the front end portion 1610 are located on the same side of the first receiving cavity 100, the front end portion 1610 and the rear end portion 1611 are located on opposite sides of the first receiving cavity 100.The front end portion 1610 has a first air inlet 16022 and a first air outlet 16021, both the first air inlet 16022 and the first air outlet 16021 communicate with the first receiving cavity 100, both the first air inlet 16022 and the first air outlet 16021 communicate with the external environment of the dishwasher 1010. Along the horizontal direction X of the dishwasher heat pump device, the first air inlet 16022 is closer to the first evaporator 23 relative to the first air outlet 16021, so that the air from the external environment passes through the second evaporator 17 first, improving the heat exchange efficiency of the second evaporator 17.

[0036] In another embodiment, the front end portion 1610 includes a first air inlet portion 1603 and an air outlet portion 1602, the first air inlet portion 1603 has a plurality of first air inlets 16022, the air outlet portion 1602 has a plurality of first air outlets 16021, and along the height direction H of the dishwasher heat pump device, the first air inlet portion 1603 is located on one side of the air outlet portion 1602, so as to improve the heat exchange efficiency of the second evaporator 17.

[0037] Referring to Figures 6 and 7, in some embodiments, a windward surface of the second evaporator 17 is defined, an angle between the windward surface and the thickness direction Z of the dishwasher heat pump device is defined as θ, and θ meets the following formula: 0° ≤ θ < 90°. At least part of the windward surface intersects with the horizontal direction X of the dishwasher heat pump device 1000. Along the horizontal direction X of the dishwasher heat pump device 1000, the first fan 18 is located on one side of the second evaporator 17. Furthermore, the first fan 18 is an exhaust fan, the first fan 18 can drive the surrounding air to pass through the second evaporator 17, exchanging heat with the second evaporator 17, improving the heat exchange efficiency of the dishwasher.

[0038] Referring to Figures 11, 12 and 17, in some embodiments, along the thickness direction Z of the dishwasher heat pump device 1000, the first fan 18 is located on one side of the second evaporator 17, which allows for the placement of a larger first evaporator 23, thereby improving heat exchange efficiency. A projection plane is defined as a plane perpendicular to the thickness direction Z of the dishwasher heat pump device 1000, along the thickness direction Z of the dishwasher heat pump device 1000, an orthographic projection of the second evaporator 17 on the projection plane is the first projection area, an orthographic projection of the first fan 18 on the projection plane is the second projection area, and at least part of the first projection area overlaps with the second projection area.

[0039] Referring to Figures 1 and 4, in some embodiments, the front end portion 1610 includes a first air inlet portion 1603 and an air outlet portion 1602, the first air inlet portion 1603 has multiple first air inlets 16022, the air outlet portion 1602 has multiple first air outlets 16021, and along the height direction H of the dishwasher heat pump device 1000, the first air inlet portion 1603 is located on one side of the air outlet portion 1602.

[0040] Referring to Figure 18, in some embodiments, the front end portion 1610 includes a second air inlet portion 1604, the second air inlet portion 1604 has multiple second air inlets 16023. Along the horizontal direction X of the dishwasher heat pump device 1000, the first air inlet portion 1603 is located on one side of the air outlet portion 1602. The front end portion 1610 includes two second air inlet portions 1604, and along the horizontal direction X of the dishwasher heat pump device 1000, the two air inlet portions 1604 are located on different sides of the air outlet portion 1602 respectively. In some embodiments, the front end portion 1610 includes three or more of the second air inlet portion 1604.

[0041] The arrangement of air inlets and outlets on the front end portion 1610 of this application can increase the air intake of the first receiving cavity 100 of the dishwasher, while allowing for the installation of filter screens in the air inlet portion to filter impurities from the air, and the air inlet portion being set on the front end portion 1610 facilitates cleaning of the filter screens. Besides, air outlets from the front end portion 1610 which can reduce heat dissipation of components such as the washing cavity 300 in the first receiving cavity 100, which could affect the performance of the dishwasher.

[0042] Furthermore, in some embodiments, the first air inlet portion 1603 has a first air inlet direction Z-1, the second air inlet portion 1604 has a second air inlet direction Z-2, and the first air inlet direction Z-1 intersects with the second air inlet direction Z-2. The front end portion 1610 has multiple different air inlet directions which can make the airflow in the first receiving cavity 100 more uniform, and improve the heat exchange efficiency of the first evaporator 23.

[0043] Referring to Figure 19, in some embodiments, the dishwasher includes an electric control device 165. The rear end portion 1611 includes a rear side plate 501. The dishwasher has a first air duct 400, the wall forming the first air duct 400 includes at least part of the side wall of the electric control device 165 and at least part of the side wall of the rear side plate 501. The rear side plate 501 has an air inlet through hole 5011, the first air duct 400 has an air outlet opening, the first air duct 400 communicates with the air inlet through hole 5011, the air outlet opening communicates with the first receiving cavity 100, the air inlet through hole 5011 communicates with the external environment of the dishwasher.

[0044] In some embodiments, the dishwasher includes a driving fan 1654, at least part of the driving fan 1654 is located in the first air duct 400, the rear side plate 501 has multiple air inlet through holes 5011, and the driving fan 1654 is set on the rear side plate 501. In another embodiments, the rear side plate 501 has one air inlet through hole 5011, the driving fan 1654 is installed on the air inlet through hole 5011. The driving fan 1654 can drive air from the external environment of the dishwasher to enter the first air duct 400.

[0045] Referring to Figure 20, in some embodiments, the electric control device 165 includes a heat dissipation portion 1653 and a first control portion 1650, at least part of the heat dissipation portion 1653 is located in the first air duct 400. Along the thickness direction Z of the dishwasher, the rear side plate 501 and the heat dissipation portion 1653 are located on opposite sides of the first air duct 400. The first control portion 1650 includes a power module portion (not shown) and a first control board 1661, the power module portion is electrically connected to the first control board 1661, the heat dissipation portion 1653 is connected to the power module portion, and the power module portion is connected to the first control board 1661.

[0046] Furthermore, in some embodiments, the power module portion is directly connected to the heat dissipation portion 1653, the material of the heat dissipation portion 1653 can be selected from aluminum alloy, copper, etc., the shape of the heat dissipation portion 1653 includes but is not limited to plate-shaped, sheet-shaped, multi-sheet shaped, etc., specifically selected as heat sink fins. In this application, the power module portion is electrically connected to the first control board 1661, the power module portion is used to control the operation of the dishwasher's heat pump system, the power module will generate heat during system operation, if the heat is too high, the power module will malfunction, affecting the operation of the dishwasher, therefore, directly connecting the power module portion to the heat dissipation portion 1653 allows the heat dissipation portion 1653 to conduct out the heat from the power module portion, and then the air in the first air duct 400 can carry away the heat from the heat dissipation portion 1653, to dissipate heat from the electric control device 165, allowing the dishwasher to operate better. The contact surface between the power module portion and the heat dissipation portion 1653 can also include a thermal conductive layer, allowing the heat generated by the power module portion to be more effectively conducted to the heat dissipation portion 1653, and then dissipated to the surrounding environment through the heat dissipation portion 1653.

[0047] Referring to Figures 19 and 20, in some embodiments, the electric control device 165 includes a first connecting portion 1655 and a second connecting portion 1656, the first connecting portion 1655 and the second connecting portion 1656 are fixedly connected or integrally formed. Along the thickness direction Z of the dishwasher, the first connecting portion 1655 and the rear side plate 501 are located on opposite sides of the first air duct 400. The dishwasher includes a base 160, define the direction perpendicular to the thickness direction Z of the dishwasher as the height direction H, the height direction H is parallel to the height direction H, along the height direction H, the second connecting portion 1656 and the base 160 are located on opposite sides of the first air duct 400. The wall forming the first air duct 400 includes at least part of the side wall of the first connecting portion 1655, at least part of the side wall of the second connecting portion 1656, and at least part of the bottom wall of the base 160.

[0048] In some embodiments, the first connecting portion 1655 has a first mounting groove 16551, 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, the first connecting portion 1655 and the rear side plate 501 are located on opposite sides of the first air duct 400, furthermore, along the thickness direction Z of the dishwasher, the first control portion 1650 and the rear side plate 501 are located on opposite sides of the first air duct 400, air from the external environment can enter the first air duct 400 through the air inlet through hole 5011 of the rear side plate 501, thereby dissipating heat from the heat dissipation portion 1653 of the electric control device 165, allowing the dishwasher to operate better.

[0049] In some embodiments, the dishwasher includes a second control board 1662, the second connecting portion 1656 has a second mounting groove 16552, at least part of the second control board 1662 is located in the second mounting groove 16552, the first mounting groove 16551 can communicate with the second mounting groove 16552, the second control board 1662 is used to control various washing modes of the dishwasher, such as heating mode, drying mode, etc.

[0050] Referring to Figures 7, 9, 11 and 12, in some embodiments, the dishwasher includes a liquid collecting portion 29 and a spraying portion (not shown), the liquid collecting portion 29 is located in the first receiving cavity 100, at least part of the spraying portion is located inside the washing cavity 300. The liquid collecting portion 29 has a liquid collecting tank 291, the liquid collecting tank 291 can be used to collect washing liquid. The spraying portion has a spraying channel, both the liquid collecting tank 291 and the interior of the washing cavity 300 communicate with the spraying channel. Along the thickness direction Z of the dishwasher, the front end portion 1610 and the first evaporator 23 are located on the same side of the liquid collecting portion 29, the front end portion 1610 has a first air inlet 16022 and a first air outlet 16021, the arrangement of air inlet and outlet on the front end portion 1610 in this application can reduce heat loss from the washing liquid in the liquid collecting tank 291 of the liquid collecting portion 29.

[0051] In some embodiments, the dishwasher includes a base 160 and a top seat 162, along the height direction H, the base 160 and the top seat 162 are located on opposite sides of the liquid collecting portion 29, the first condenser 13 is located below the liquid collecting portion 29, and placed on at least part of the surface of the base 160, which can reduce the space occupied by the first condenser 13.

[0052] Referring to Figure 9, in some embodiments, the dishwasher includes a compressor 11, a first throttle valve 16, a second throttle valve 20 and a water treatment device 28. The compressor 11, first throttle valve 16, second throttle valve 20 and water treatment device 28 are all located in the first receiving cavity 100. The compressor 11 and water treatment device 28 are arranged around the periphery of the liquid collecting portion 29, making the structure more compact to reduce the overall volume of the dishwasher. The water treatment device 28 includes a water softener 281 and a breather 282. Furthermore, both the first throttle valve 16 and second throttle valve 20 are expansion valves, used to regulate the flow and evaporation pressure of the heat exchange fluid in the dishwasher.

[0053] Referring to Figure 12, furthermore, in some embodiments, along the horizontal direction X, the compressor 11 and water treatment device 28 are located on opposite sides of the liquid collecting portion 29. Along the thickness direction Z, relative to the liquid collecting portion 29, the compressor 11 is closer to the second evaporator 17. The second evaporator 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, water treatment device 28 and first evaporator 23 can make the components of the dishwasher more compact, reducing the volume of the dishwasher.

[0054] Figures 21 to 22 show schematic diagrams of a dishwasher system in accordance with this application. The dishwasher system includes a first condenser 13, a first evaporator 23, a second condenser 21 and a second evaporator 17. The dishwasher system has a first cavity 100, with both the first condenser 13 and second evaporator 17 located in the first cavity 100. The dishwasher includes a first cavity 200, with both the first evaporator 23 and second condenser 21 located inside the first cavity 200. The first cavity 100 communicates with the external environment.

[0055] In some embodiments, the dishwasher 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, first agent-side branch path b and second agent-side branch path c are all used for circulating heat exchange fluid. The dishwasher system includes a first valve piece 12. The first valve piece 12 has a first valve port 121, a second valve port 122 and a third valve port 123. The first valve piece 12 is used to control the connection between the first agent-side flow path a and either the first agent-side branch path b or the second agent-side branch path c. The first condenser 13 is set on the second agent-side branch path c.

[0056] In some embodiments, the dishwasher system also 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, third agent-side branch path h, and fourth agent-side branch path g are all used for circulating heat exchange fluid, while the first fluid flow path f is used for circulating washing liquid. The first agent-side branch path b, second agent-side branch path c, third agent-side branch path h, and fourth agent-side branch path g are all connected to the first agent-side flow path a and second agent-side flow path d. The second evaporator 17 is set on the fourth agent-side branch path g. The dishwasher system includes a compressor 11 and a first fan 18. The compressor 11 is set on the first agent-side flow path d, the first fan 18 is located in the first cavity 100, the first fan 18 is close to the second evaporator 17, and the second evaporator 17 is close to the compressor 11. When the first fan 18 starts, it can change the wind direction entering the dishwasher from the external environment, making the wind pass through the compressor 11 and then through the second evaporator 17, forming a first air circulation channel 500. On one hand, this can dissipate heat from the compressor, reducing the impact of heat generated by the compressor 11 on the operation of internal components such as the motor, thereby improving 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 with the first evaporator 23, achieving high efficiency and energy savings.

[0057] In some embodiments, part of the first condenser 13 is set on the second agent-side branch path b, and part of the first condenser 13 is set on the first fluid flow path f. The first condenser 13 includes a heat exchange tube 132 and a sleeve tube 131. The heat exchange tube 132 is used for circulating heat exchange fluid, while the sleeve tube 131 is used for circulating fluid. The pipe of the heat exchange tube 132 communicates with the second agent-side branch path b, and the pipe of the sleeve tube 131 communicates with 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 condensing, which can heat the washing liquid (such as water) in the sleeve tube 131.

[0058] In some embodiments, the dishwasher system includes a first check valve 14, a second check valve 124, a first throttle valve 16, and a second throttle valve 20. The first check valve 14 is set on the first agent-side branch path b, the second check valve 124 is set on the second agent-side branch path c, the first throttle valve 16 is set on the fourth agent-side branch path g, and the second throttle valve 20 is set on the third agent-side branch path h. The first check valve 14 is connected to both the first condenser 13 and the filter drier 15. The second check valve 124 is connected to both the first condenser 13 and the filter drier 15. Both the first throttle valve 16 and the second throttle valve 20 are connected to the filter drier 15.

[0059] In some embodiments, the dishwasher system includes a second fan 22, a liquid collecting tank 29, and a spraying portion 30. The dishwasher includes a washing cavity 300. Both the first evaporator 23 and the second fan 22 are located inside the first cavity 200. The spraying portion 30 is located inside the washing cavity 300. The interior of the first cavity 200 communicates with the washing cavity 300. When the second fan 22 starts, a second air circulation channel 600 is formed in the interior of the first cavity 200, and then the air in the second air circulation channel 600 enters the washing cavity 300. The second air circulation channel 600 circulates between the interior of the first cavity 200 and the interior of the washing cavity 300, allowing the fluid in the second air circulation channel 600 to exchange heat with the second condenser 21 and the first evaporator 23. The second air circulation channel 600 circulates within enclosed cavities.

[0060] Referring to Figure 19, in some embodiments, the dishwasher system includes a second fluid flow path m and a third fluid flow path n. The second fluid flow path m, third fluid flow path n, and fourth fluid flow path e are all used for circulating washing liquid. The liquid collecting tank 29 is connected to the second fluid flow path m. Both the first fluid flow path f and the third fluid flow path n are connected to the second fluid flow path m. The dishwasher system also includes a second valve piece 25 and a first water pump 24. The second valve piece 25 has a fourth valve port 251, a fifth valve port 252, and a sixth valve port 253. The second valve piece 25 is used to control the connection between the second fluid flow path m and either the first fluid flow path for the third fluid flow path n. The first water pump 24 is set on the third fluid flow path n and is used to drive the flow of washing liquid in the flow path. The third fluid flow path n is connected to the spraying portion 30. The fluid in the spraying portion 30 is sprayed into the washing cavity 300 for cleaning dishes and utensils. The fourth fluid flow path e communicates with the liquid collecting tank 291 of the liquid collecting tank 29.

[0061] Referring to Figure 20, in some embodiments, the dishwasher system includes a third valve piece 254. The third valve piece 254 is located on the first fluid flow path f. The first water pump 24 is located on the second fluid flow path m. The third valve piece 254 is used to control the connection between the first fluid flow path f and the second fluid flow path m. The first fluid flow path f is connected to the liquid collecting tank 29.

[0062] In some embodiments, a temperature sensor (not shown) is set on the liquid collecting tank 29, used to monitor whether the temperature of the washing liquid (such as water) in the liquid collecting tank 29 meets the washing temperature. When the washing temperature is met, the fifth valve port 252 is closed, the fourth valve port 251 communicates with the sixth valve port 253, that is, the second fluid flow path m communicates with the third fluid flow path n, allowing the washing liquid in the liquid collecting tank to be sprayed into the washing cavity 300 through the spraying portion 30. When the washing temperature is not met, the fifth valve port 252 is closed, the fourth valve port 251 communicates with the sixth valve port 253, that is, the second fluid flow path m communicates with the first fluid flow path f, allowing the fluid in the first fluid flow path f to flow into the sleeve tube 131, exchange heat with the heat exchange tube 132 to raise the temperature, then the first fluid flow path f communicates with the third fluid flow path n, and is sprayed into the washing cavity 300 through the spraying portion 30.

[0063] The dishwasher system in this application includes a washing mode and a drying mode. In some embodiments, referring to Figure 16, the washing mode is divided into a circulation path for heat exchange fluid and a circulation path for washing liquid. Among them, the circulation path for heat exchange fluid is: The first fan 18 runs, the high-temperature and high-pressure gaseous heat exchange fluid discharged from the compressor 11 flows through the first valve piece 12 into the heat exchange tube 132 of the first condenser 13 for condensation, releasing a large amount of heat to heat the fluid in the sleeve tube 131, then passes through the first check valve 14 and filter drier 15, enters the first throttle valve 16 for throttling, becomes a two-phase gas-liquid heat exchange fluid after throttling, then enters the second evaporator 17, the first fan 18 is set near the second evaporator 17, the first fan 18 drives the surrounding external environment air to pass through the compressor 11 and enter the second evaporator 17, then is discharged to the external environment through the first fan 18, forming the first air circulation channel 500. On one hand, it can dissipate heat from the compressor 11, improving the service life of the compressor 11, on the other hand, the second evaporator 17 can utilize the waste heat generated by the compressor 11 for heat exchange, the heat exchange fluid absorbs heat in the first evaporator 23 and becomes low-temperature and low-pressure gas returning to the compressor 11.

[0064] In some embodiments, the circulation path for washing liquid in washing mode is: The first water pump 24 starts, the washing liquid stored in the liquid collecting tank 29 enters the second valve piece 25, the sixth valve port 253 is closed, the fourth valve port 251 communicates with the second valve port 252, the washing liquid enters the sleeve tube 131 for heating, then flows through the third fluid flow path n, and is sprayed into the washing cavity 300 through the spraying portion 30. The sprayed washing liquid flows back to the liquid collecting tank 29, completing one circulation of washing liquid flow. When the washing liquid in the liquid collecting tank 29 meets the washing temperature, the fourth valve port 251 communicates with the sixth valve port 253, the fifth valve port 252 is closed, the washing liquid in the liquid collecting tank 29 flows through the second fluid flow path m, then through the second valve piece 25 and the third fluid flow path n, enters the spraying portion 30 and is sprayed into the washing cavity 300. The sprayed washing liquid flows back to the liquid collecting tank 29, completing one circulation of washing liquid flow.

[0065] In some embodiments, during the washing mode, the circulation path of the washing liquid is as follows: The first water pump 24 starts, the washing liquid stored in the liquid collecting tank 29 enters the second fluid flow path m, the third valve piece 254 opens, the second fluid flow path m communicates with the first fluid flow path f and the third fluid flow path n respectively. The washing liquid in the first fluid flow path f enters the sleeve 131 for heating, then returns to the liquid collecting tank 29. The washing liquid in the third fluid flow path n directly enters the spraying portion 30 and sprays into the washing cavity 300. After spraying, the washing liquid flows back to the liquid collecting tank 29. The washing liquid from the first fluid flow path f and the sprayed washing liquid mix in the liquid collecting tank 29, increasing the temperature of the washing liquid in the liquid collecting tank 29. This process continues to circulate until it reaches the cleaning temperature required for dishes and other tableware. When the cleaning temperature is reached, the third valve piece 254 closes, and the washing liquid in the liquid collecting tank 29 enters the third fluid flow path n through the second fluid flow path m. The washing liquid in the third fluid flow path n directly enters the spraying portion 30 and sprays into the washing cavity 300. After spraying, the fluid flows back to the liquid collecting tank 29, completing one 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, achieving an energy-saving and efficient effect.

[0066] The temperature of the washing liquid in the liquid collecting tank 29 increases and continues to circulate until it reaches the cleaning temperature required for dishes and other tableware. When the cleaning temperature is reached, the third valve piece 254 closes, and the washing liquid in the liquid collecting tank 29 enters the third fluid flow path n through the second fluid flow path m. The washing liquid in the third fluid flow path n directly enters the spraying portion 30 and sprays into the washing cavity 300. After spraying, the fluid flows back to the liquid collecting tank 29, completing one 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, achieving an energy-saving and efficient effect.

[0067] In some embodiments, in drying mode, the circulation path for heat exchange fluid is: The second fan 22 runs, the high-temperature and high-pressure gaseous heat exchange fluid discharged from the compressor 11 passes through the first valve piece 12, the first valve port 121 communicates with the second valve port 122, the heat exchange fluid passes through the second condenser 21, after the second condenser 21 releases latent heat, it becomes high-temperature and high-pressure liquid heat exchange fluid, passes through the second check valve 124 and filter drier 15, then passes through the second throttle valve 20 for throttling, becomes a two-phase gas-liquid heat exchange fluid entering the first evaporator 23, after absorbing heat it becomes low-temperature and low-pressure gas returning to the compressor 11. The flow path of the two-phase cooling liquid in the second air circulation channel 600 is: The high-temperature and high-humidity gaseous cooling liquid in the washing cavity 300 passes through the first evaporator 23, liquefies and condenses on its surface into liquid and is discharged, then passes through the second condenser 21, absorbs the heat released by the second condenser 21, becomes high-temperature and low-humidity gas entering the washing cavity 300, the water droplets on the surface of dishes in the washing cavity 300 absorb heat and evaporate. The water droplets formed on the surface of the first evaporator 23 are discharged from the dishwasher through equipment such as a water collecting tray, this cycle continues, the humidity in the washing cavity 300 will decrease until it meets the drying requirements.

[0068] In this application, the first condenser 13 and second evaporator 17 are used in washing mode, while the first evaporator 23 and second condenser 21 are used in drying mode, that is, different evaporators and condensers are used in washing mode and drying mode respectively. This allows for providing evaporators and condensers with different heat exchange areas according to the heat exchange needs in different modes, to achieve energy-saving and high-efficiency effects, while also enabling the dishwasher system to operate better.

[0069] It should be noted that the refrigerants mentioned in this application include but are not limited to R22, R32, R290, R410A, etc.. The washing liquids include but are not limited to water, detergents, and mixtures of water and detergents, etc.

[0070] It should be understood that terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the figures, and are only for the purpose of facilitating description of this application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation, or operate in a specific orientation. Therefore, they should not be understood as limitations on this application. Furthermore, features defined as "first", "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise stated, "multiple" means two or more.

Claims

1. A dishwasher heat pump device, characterized in that the dishwasher heat pump device (1000) includes a first cavity (200), a first condenser (13) and a first evaporator (23), the first evaporator (23) is located inside the first cavity (200), and the first condenser (13) is located around the periphery of the first cavity (200); an inner chamber of the first cavity (200) is used to directly communicate only with an inner chamber of a washing cavity (300) of a dishwasher.

2. The dishwasher heat pump device according to claim 1, wherein the dishwasher heat pump device includes a first plate portion (201) and a second plate portion (202), and both the first plate portion (201) and the second plate portion (202) are connected to the first cavity (200); the first plate portion (201) has a first flow channel (211) and a first flow passage opening (203), and the second plate portion (202) has a second flow channel (212) and a second flow passage opening (204); the first flow passage opening (203) communicates with the first flow channel (211), the second flow passage opening (204) communicates with the second flow channel (212), and both the first flow channel (211) and the second flow channel (212) communicate with the inner chamber of the first cavity (200); the first flow passage opening (203) is used to connect the first flow channel (211) with the inner chamber of the washing cavity (300), and the second flow passage opening (204) is used to connect the second flow channel (212) with the inner chamber of the washing cavity (300).

3. The dishwasher heat pump device according to claim 2, wherein the dishwasher heat pump device has a horizontal direction (X), a height direction (H) and a thickness direction (Z), both the horizontal direction (X) of the dishwasher heat pump device and the height direction (H) of the dishwasher heat pump device are perpendicular to the thickness direction (Z) of the dishwasher heat pump device, and the horizontal direction (X) of the dishwasher heat pump device is perpendicular to the height direction (H) of the dishwasher heat pump device, and 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 the same side of the first cavity (200); along the height direction (H) of the dishwasher heat pump device, the second flow passage opening (204) is closer to the first cavity (200) relative to the first flow passage opening (203).

4. The dishwasher heat pump device according to claim 2 or 3, wherein the first plate portion (201) includes an air inlet section (2015) and a first extending section (2016), the air inlet section (2015) includes a first end portion (20151) and a first connection portion (20152), the first extending section (2016) includes a second connection portion (20153) and a third connection portion (20154), and the first connection portion (20152) is directly connected to the second connection portion (20153); along a thickness direction (Z) of the dishwasher heat pump device, the first end portion (20151) is farther from the second connection portion (20153) relative to the first connection portion (20152), and the first flow passage opening (203) is set on the first end portion (20151); along a height direction (H) of the dishwasher heat pump device, the third connection portion (20154) is closer to the first cavity (200) relative to the second connection portion (20153); the thickness direction (Z) of the dishwasher heat pump device is perpendicular to the height direction (H) of the dishwasher heat pump device; the first flow channel (211) includes a first sub-flow channel (2111) and a second sub-flow channel (2112), the first sub-flow channel (2111) communicates with the second sub-flow channel (2112), the first sub-flow channel (2111) extends through the first connection portion (20152), the second sub-flow channel (2112) extends through the second connection portion (20153) and the third connection portion (20154), and the first flow passage opening (203) communicates with the first sub-flow channel (2111).

5. The dishwasher heat pump device according to claim 4, wherein the dishwasher heat pump device has a horizontal direction (X), both the horizontal direction (X) of the dishwasher heat pump device and the height direction (H) the dishwasher heat pump device are perpendicular to the thickness direction (Z) of the dishwasher heat pump device, a first extending direction (X-1) is defined as a direction pointing from the first end portion (20151) to the first connection portion (20152), and a second extending direction (X-2) is defined as a direction pointing from the second connection portion (20153) to the third connection portion (20154), and 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 within a plane perpendicular to the horizontal direction (X) of the dishwasher heat pump device; the first extending direction (X-1) is parallel to the thickness direction (Z) of the dishwasher heat pump device; or, along the height direction (H) of the dishwasher heat pump device, the first connection portion (20152) is farther from the first cavity (200) relative to the first end portion (20151), and an 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.

6. The dishwasher heat pump device according to any one of claims 2-5, wherein 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), the second flow passage opening (204) is set on the first side portion (20181), the first straight section (2019) includes a third side portion (20183) and a fourth side portion (20184), and the second side portion (20182) is directly connected to the third side portion (20183); along a thickness direction (Z) of the dishwasher heat pump device, the first side portion (20181) is farther from the third side portion (20183) relative to the second side portion (20182); along a height direction (H) of the dishwasher heat pump device, the fourth side portion (20184) is closer to the first cavity (200) relative to the third side portion (20183); 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 flow channel (212) includes a first branch flow channel (2121) and a second branch flow channel (2122), the first branch flow channel (2121) communicates with the second branch flow channel (2122), the first branch flow channel (2121) extends through the second side portion (20182), the second branch flow channel (2122) extends through the third side portion (20183) and the fourth side portion (20184), and the second flow passage opening (204) communicates with the first branch flow channel (2121).

7. The dishwasher heat pump device according to claim 6, wherein the dishwasher heat pump device has a horizontal direction (X), both the horizontal direction (X) of the dishwasher heat pump device and the height direction (H) of the dishwasher heat pump device are perpendicular to the thickness direction (Z) of the dishwasher heat pump device, a first inclined direction (Y-1) is defined as a direction pointing from the first side portion (20181) to the second side portion (20182), a second inclined direction (Y-2) is defined as a direction pointing from the third side portion (20183) to the fourth side portion (20184), the first inclined direction (Y-1), the second inclined direction (Y-2) and the thickness direction (Z) of the dishwasher heat pump device are all within a plane perpendicular to the horizontal direction (X) of the dishwasher heat pump device; the first inclined direction (Y-1) is parallel to the thickness direction (Z) of the dishwasher heat pump device; or, along the height direction (H) of the dishwasher heat pump device, the second side portion (20182) is farther from the first cavity (200) relative to the first side portion (20181), and an angle between the first inclined direction (Y-1) and the thickness direction (Z) of the dishwasher heat pump device is an acute angle or a right angle.

8. The dishwasher heat pump device according to claim 6 or 7, wherein a cross-section (1001) is defined as a plane perpendicular to the thickness direction (Z) of the dishwasher heat pump device (1000), the cross-section (1001) includes a first cross-section (1002) and a second cross-section (1003), and along the height direction (H) of the dishwasher heat pump device, the first cross-section (1002) is closer to the second flow passage opening (204) relative to the second cross-section (1003); a first communication port (1004) is obtained by intersecting the air outlet section (2018) by the first cross-section (1002), and a second communication port (1005) is obtained by intersecting the air outlet section (2018) by the second cross-section (1003), and the flow area of the first communication port (1004) is smaller than the flow area of the second communication port (1005).

9. The dishwasher heat pump device according to any one of claims 6-8, wherein the dishwasher heat pump device includes a guiding portion (2022), the guiding portion (2022) is partially located in the air outlet section (2018), and there is a gap between the guiding portion (2022) and the side wall of the second flow channel (212); the guiding portion (2022) includes a first guiding end portion (2023) and a second guiding end portion (2024), and along the thickness direction (Z) of the dishwasher heat pump device, the first guiding end portion (2023) is closer to the second flow passage opening (204) relative to the second guiding end portion (2024).

10. The dishwasher heat pump device according to any one of claims 2-9, wherein the dishwasher heat pump device (1000) includes a connecting section (2011), both the first plate portion (201) and the second plate portion (202) are connected to the connecting section (2011), the first plate portion (201) is fixedly connected to or integrally formed with the connecting section (2011), and the second plate portion (202) is fixedly connected to or integrally formed with the connecting section (2011).

11. The dishwasher heat pump device according to claim 10, wherein 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), 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 extending 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).

12. The dishwasher heat pump device according to any one of claims 1-11, wherein the dishwasher heat pump device includes a second evaporator (17), a second condenser (21), a first fan (18) and a second fan (22); the first evaporator (23) is in parallel connection with the second evaporator (17), the first condenser (13) is in parallel connection with the second condenser (21), and both the second condenser (21) and the second fan (22) are located inside the first cavity (100); the second fan (22) is located between the second condenser (21) and the first evaporator (23).

13. A dishwasher, characterized in that the dishwasher includes a washing cavity (300) and a dishwasher heat pump device (1000); the dishwasher heat pump device (1000) includes a first cavity (200), a first condenser (13) and a first evaporator (23), the first evaporator (23) is located inside the first cavity (200), and the first condenser (13) is located around the periphery of the first cavity (200); the dishwasher has a first receiving cavity (100), the first receiving cavity (100) communicates with the external environment of the dishwasher, both the first condenser (13) and the first cavity (200) are located in the first receiving cavity (100), and an inner chamber of the first cavity (200) is in direct communication only with an inner chamber of the washing cavity (300).

14. The dishwasher according to claim 13, wherein the dishwasher heat pump device includes a first plate portion (201) and a second plate portion (202), and both the first plate portion (201) and the second plate portion (202) are connected to the first cavity (200); the first plate portion (201) has a first flow channel (211) and a first flow passage opening (203), the second plate portion (202) has a second flow channel (212) and a second flow passage opening (204), the first flow passage opening (203) communicates with the first flow channel (211), the second flow passage opening (204) communicates with the second flow channel (212), and both the first flow channel (211) and the second flow channel (212) communicate with the inner chamber of the first cavity (200); the first flow passage opening (203) is used to connect the first flow channel (211) with the inner chamber of the washing cavity (300), and the second flow passage opening (204) is used to connect the second flow channel (212) with the inner chamber of the washing cavity (300); along a thickness direction (Z) of the dishwasher heat pump device, the first plate portion (201) and the second plate portion (202) are located on the same side of the washing cavity (300).

15. The dishwasher according to claim 13 or 14, wherein the dishwasher includes a housing (700), the housing (700) includes a door portion (403), a front end portion (1610) and a rear end portion (1611), along the thickness direction (Z) of the dishwasher heat pump device, the door portion (403) and the front end portion (1610) are located on the same side of the first receiving cavity (100), and the front end portion (1610) and the rear end portion (1611) are located on opposite sides of the first receiving cavity (100); the dishwasher heat pump device has a horizontal direction (X), a height direction (H) and a thickness direction (Z), both the horizontal direction (X) of the dishwasher heat pump device and the height direction (H) of the dishwasher heat pump device are perpendicular to the thickness direction (Z) of the dishwasher heat pump device, and the horizontal direction (X) of the dishwasher heat pump device is perpendicular to the height direction (H) of the dishwasher heat pump device; the front end portion (1610) has a first air inlet (16022) and a first air outlet (16021), both the first air inlet (16022) and the first air outlet (16021) communicate with the first receiving cavity (100), both the first air inlet (16022) and the first air outlet (16021) communicate with the external environment of the dishwasher, and along the horizontal direction (X) of the dishwasher heat pump device, the first air inlet (16022) is closer to the first evaporator (23) relative to the first air outlet (16021); or, the front end portion (1610) includes a first air inlet portion (1603) and an air outlet portion (1602), the first air inlet portion (1603) has a plurality of first air inlets (16022), the air outlet portion (1602) has a plurality of first air outlets (16021), and along the height direction (H) of the dishwasher heat pump device, the first air inlet portion (1603) is located on one side of the air outlet portion (1602).

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