Dish-washing machine heat pump system and dish-washing machine heat pump device

Abstract

The dish-washing machine heat pump system comprises a compressor, a first evaporator, a first condenser and a first valve. The dish-washing machine heat pump system comprises a first main path, a bypass branch and a first main flow path. The first valve can be used for controlling the first main path to communicate with one of the bypass branch and the first main flow path; the compressor is arranged on the first main path, the bypass branch is provided with a first end and a second end, the first end is connected between the compressor and the first condenser, and the second end is connected between the first condenser and the first evaporator; the first evaporator is provided with a first refrigerant flow path, and the bypass branch communicates with the first refrigerant flow path; the first main path, the bypass branch and the first main flow path can be used for circulating a refrigerant; the invention further provides a dish-washing machine heat pump device. According to the application, when the first evaporator is frosted, high-temperature and high-pressure refrigerant gas exhausted by the compressor flows into the first refrigerant flow path of the first evaporator through the bypass branch, so that the first evaporator is defrosted, and the purpose of reducing energy consumption is achieved.

Description

Technical Field

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

[0002] In a heat pump dishwasher, water heating is achieved through a heat pump system. The evaporator in the heat pump system absorbs heat from the environment, while the condenser transfers heat to the washing water. The evaporator's temperature is lower than the surrounding air temperature, thus it absorbs heat from the air. During this process, when the evaporator's temperature is below the air dew point temperature, water vapor in the surrounding air condenses on the evaporator surface. In low temperatures (winter), when the dishwasher's installation area is cold, the evaporator surface temperature drops below 0°C and below the surrounding dew point temperature, causing frost to form instead of water droplets. This frost fills the space between the evaporator fins, preventing airflow. In this situation, as the amount of air flowing through the evaporator decreases, the heat pump's heat absorption capacity also decreases, leading to low heat pump efficiency and increased time and energy required to heat the water.

[0003] In related technologies, a heating module is installed around the evaporator of the dishwasher. The heating module raises the air temperature in the environment around the evaporator to achieve the purpose of defrosting, which increases the energy consumption of the dishwasher.

[0004] Application content

[0005] The purpose of this application is to provide a dishwasher heat pump system, including a compressor, a first evaporator, a first condenser, and a first valve; the dishwasher heat pump system includes a first main circuit, a bypass branch circuit, and a first main flow circuit; the first valve is capable of controlling the connection between the first main circuit and one of the bypass branch circuit and the first main flow circuit;

[0006] The compressor is located on the first main path, and the bypass branch has a first end and a second end. The first end is connected between the compressor and the first condenser, and the second end is connected between the first condenser and the first evaporator. The first evaporator has a first refrigerant flow path, and the bypass branch is connected to the first refrigerant flow path. The first main path, the bypass branch, and the first main path can all be used to circulate refrigerant.

[0007] In this application, the dishwasher heat pump system includes a first main circuit and a bypass branch circuit, and the dishwasher includes a first valve component. The first valve component can be used to control the connection between the first main circuit and the bypass branch circuit. When the first evaporator is frosted, the high-temperature and high-pressure refrigerant gas discharged by the compressor flows into the first refrigerant flow path of the first evaporator through the bypass branch circuit, thereby defrosting the first evaporator to achieve the purpose of reducing energy consumption.

[0008] This application also provides a dishwasher heat pump device, including a compressor, a bypass pipe, a first valve, and a first evaporator; one end of the bypass pipe is connected to the first valve, and the other end of the bypass pipe is connected to the first evaporator; the compressor is connected to the first valve, the bypass pipe has a pipe, the dishwasher heat pump device includes the bypass branch, the bypass branch includes at least a portion of the pipe of the bypass pipe; the first valve can be used to control the connection between the outlet of the compressor and the pipe of the bypass pipe.

[0009] In this application, the dishwasher heat pump device includes a compressor, a bypass pipe, a first valve, and a first evaporator. The compressor is connected to the first valve, one end of the bypass pipe is connected to the first valve, and the other end of the bypass pipe is connected to the first evaporator. The bypass pipe has a pipe. The dishwasher heat pump device includes a bypass branch. The first valve can be used to control the connection between the compressor outlet and the bypass pipe. When the first evaporator is frosted, the high-temperature and high-pressure refrigerant gas discharged by the compressor flows into the first refrigerant flow path of the first evaporator through the bypass branch, thereby defrosting the first evaporator to reduce energy consumption. Attached Figure Description

[0010] Figure 1 A system schematic diagram illustrating one implementation of a dishwasher heat pump system;

[0011] Figure 2 A front view structural diagram of one embodiment of a dishwasher;

[0012] Figure 3 for Figure 2 A rear view structural diagram of one embodiment of the dishwasher;

[0013] Figure 4 This is a schematic diagram of the internal structure of the washing chamber in a dishwasher;

[0014] Figure 5 A top view schematic diagram of one embodiment of a dishwasher heat pump device;

[0015] Figure 6 This is a schematic diagram of the dishwasher's heat pump unit and water softener.

[0016] Figure 7 for Figure 6 A schematic cross-sectional view of the first and second plates of the heat pump unit in a dishwasher.

[0017] Figure 8 for Figure 7 Schematic diagram of the structure of the first and second flow channels in the middle section;

[0018] Figure 9 for Figure 6 A schematic cross-sectional view of the first plate section.

[0019] Figure 10 for Figure 6 A schematic cross-sectional view of the second plate section.

[0020] Figure 11 for Figure 7 Enlarged diagram of A in the middle;

[0021] Figure 12 for Figure 5 A schematic diagram showing the positional relationship between the first condenser, the second fan, and the second evaporator in the heat pump unit of a dishwasher.

[0022] Figure 13 for Figure 5 A schematic diagram of the internal structure of one embodiment of the heat pump device for a dishwasher;

[0023] Figure 14 for Figure 5 A schematic diagram of the piping connection in the defrost mode of the heat pump unit of the dishwasher.

[0024] Figure 15 for Figure 5 A schematic diagram of the structure of the first receiving part, the first fluid pipe and the liquid collecting part of the heat pump device of the dishwasher, and a schematic diagram of the flow direction of the fluid;

[0025] Figure 16 for Figure 5 A cross-sectional schematic diagram of the first receiving part of the heat pump unit of the dishwasher.

[0026] Figure 17 for Figure 5 A schematic diagram of one embodiment of the positional relationship between the first evaporator, the second evaporator, the first receiving part, and the second receiving part of the heat pump device for a dishwasher;

[0027] Figure 18 for Figure 5 A schematic diagram of the structure of one embodiment of the first receiving part, the second receiving part, and the liquid collection part of the heat pump device for a dishwasher, and a schematic diagram of the flow direction of the fluid.

[0028] Figure 19 for Figure 5 A cross-sectional schematic diagram of the second receiving section of the heat pump unit in the dishwasher.

[0029] Figure 20 for Figure 5 A schematic diagram of the liquid collection section, the first connecting section and the first receiving section of the heat pump device for the dishwasher, as well as a schematic diagram of the fluid flow direction;

[0030] Figure 21 for Figure 5A schematic diagram of the structure of the first fluid pipe, the second fluid pipe and the first connection part in the heat pump device of the dishwasher;

[0031] Figure 22 for Figure 21 Enlarged schematic diagram of the liquid level detection unit of the heat pump device in the dishwasher;

[0032] Figure 23 for Figure 5 A schematic diagram of the structure of the second condenser in the heat pump unit of the dishwasher;

[0033] Figure 24 for Figure 5 A schematic diagram of the exploded structure of the second condenser in the heat pump unit of the dishwasher. Detailed Implementation

[0034] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0035] It should be noted that the term "and / or" as used in this application includes any and all combinations of one or more of the related listed items. The words "comprising" or "including" or similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects.

[0036] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Figure 1The diagram illustrates a dishwasher heat pump system conforming to this application, comprising a compressor 11, a first evaporator 17, a first condenser 21, and a first valve 12. The dishwasher heat pump system includes a first main line a, a bypass branch a1, and a first main flow line c. The first valve 12 is capable of controlling the connection between the first main line a and one of the bypass branch a1 and the first main flow line c. The compressor 11 is disposed on the first main line a, the first condenser 21 is disposed on the first main flow line c, and the bypass branch a1 has a first end 101 and a second end 102. The first end 101 is connected between the compressor 11 and the first condenser 21, and the second end 102 is connected between the first evaporator 17 and the first condenser 21. The first evaporator 17 has a first refrigerant flow path, and the bypass branch a1 is connected to the first refrigerant flow path. The first main line a, the bypass branch a1, and the first main flow line c are all capable of circulating refrigerant.

[0038] In this application, the dishwasher heat pump system includes a first main circuit a and a bypass branch a1, and the dishwasher includes a first valve 12. The first valve 12 can be used to control the connection between the first main circuit a and the bypass branch a1, and the bypass branch a1 is connected to the first refrigerant flow path. When the first evaporator 17 is frosted, the high-temperature and high-pressure refrigerant gas discharged by the compressor 11 flows into the first refrigerant flow path of the first evaporator 17 through the bypass branch a1, thereby defrosting the first evaporator 17 to reduce energy consumption.

[0039] In some embodiments, the first valve 12 can be an electrically operated switching valve or a multi-way valve, such as a three-way valve or a four-way valve. Furthermore, the first valve 12 is an electrically operated switching valve, which can switch the flow path and control the fluid flow rate, thereby reducing pipeline connections and saving parts, making it occupy less space in the dishwasher and have a more compact structure.

[0040] Furthermore, in some embodiments, the first valve 12 is an electrically operated switching valve, and the first valve 12 has a first valve port 121, a second valve port 122, a third valve port 123 and a fourth valve port 124. The first valve port 121 is connected to the first main line a, the second valve port 122 is connected to the bypass branch a1, the third valve port 123 is connected to the first main line c, and the fourth valve port 124 is connected to the second main line b.

[0041] refer to Figure 1 As shown, in some embodiments, the dishwasher heat pump system includes a second condenser 13, and the first condenser 21 is connected in parallel with the second condenser 13; the dishwasher heat pump system includes a second main flow path b, the first condenser 21 has a second refrigerant flow path, the first main flow path c includes the second refrigerant flow path, the second condenser 13 has a third refrigerant flow path, the second main flow path b includes the third refrigerant flow path, and the first valve 12 is capable of controlling the connection between the first main flow path a and one of the first main flow path c and the second main flow path b.

[0042] In some implementations, the first valve 12 can control the connection between the first main road a and the first main flow road c or the second main flow road b or the bypass branch road a1. The first valve 12 can also control the connection between the first main road a and the first main flow road c and the bypass branch road a1 simultaneously, and can switch the control according to the corresponding operating mode.

[0043] In some implementations, the dishwasher heat pump system has a washing mode, a drying mode, and a defrosting mode. In the washing mode, the first main path a is connected to the second main path b, and the first main path a is disconnected from the first main path c and the bypass branch a1. In the drying mode, the first main path a is connected to the first main path c, and the first main path a is disconnected from the second main path b and the bypass branch a1. In the defrosting mode, the first main path a is connected to the bypass branch a1, and the first main path a is disconnected from the first main path c and the second main path b.

[0044] It should be noted that in this application, if the first evaporator 17 is frosted before the washing mode and drying mode are running, the defrosting mode can be turned on first. After the first evaporator 17 is defrosted, the washing mode and drying mode can be run. If the first evaporator 17 is frosted after the washing mode, the defrosting mode can be run first to defrost the first evaporator 17, and then the drying mode can be run. Alternatively, the defrosting mode and drying mode can be run simultaneously.

[0045] In some embodiments, the dishwasher heat pump system includes a second evaporator 23 having a fourth refrigerant flow path; the dishwasher includes a second main path d, a third main path g, and a fourth main path h, all of which can be used to circulate refrigerant, the third main path g including a first refrigerant flow path, and the fourth main path h including a fourth refrigerant flow path.

[0046] In some embodiments, the dishwasher heat pump system includes a first one-way valve 14 and a second one-way valve 124. The first one-way valve 14 is located in the second main flow path b, and the second one-way valve 124 is located in the first main flow path c. The function of the one-way valve is to allow liquid to flow in only one direction and not in the opposite direction; that is, the first one-way valve 14 only allows the refrigerant in the second main flow path b to flow to the second main flow path d, and the second one-way valve 124 only allows the refrigerant in the first main flow path c to flow to the second main flow path d. The dishwasher includes a first throttle valve 16 and a second throttle valve 20. The first throttle valve 16 is located in the third main flow path g, and the second throttle valve 20 is located in the fourth main flow path h.

[0047] In some embodiments, the dishwasher heat pump system includes a dryer filter 15 and a charging valve 19. The dryer filter 15 is located in the second main line d and can be used to absorb moisture in the refrigerant, reduce impurities in the heat pump system, and thus reduce blockage in each flow path. The charging valve 19 is located in the first main line a and can be used to adjust the amount of refrigerant charged to ensure that there is enough refrigerant in the flow path.

[0048] In some embodiments, the dishwasher heat pump system includes a first temperature and pressure sensor 191 and a second temperature and pressure sensor 192, both of which are located on the first main circuit a and are used to detect the high and low pressure / temperature parameters of the dishwasher.

[0049] In some implementations, in defrosting mode, the first main path a is connected to the bypass branch a1, the bypass branch a1 is connected to the first refrigerant flow path in the third main path g, the third main path g is connected to the first main path a, and the first main path a is disconnected from the first main path c and the second main path b.

[0050] In some implementations, during the washing mode, the first main path a is connected to the second main path b, the second main path b is connected to the second main path d, the second main path d is connected to the third main path g, the third main path g is connected to the first main path a, and the first main path a and the first main path c are disconnected from the bypass branch a1.

[0051] In some implementations, under the drying mode, the first main road a is connected to the first main road c, the first main road c is connected to the second main road d, the second main road d is connected to the fourth main road h, the fourth main road h is connected to the first main road a, the first main road a is disconnected from the second main road b, and the first main road a is connected to or disconnected from the bypass branch a1.

[0052] In some embodiments, the dishwasher heat pump system includes a first main washing liquid path m, a first washing liquid branch path f, and a second washing liquid branch path n, all of which can be used to circulate washing liquid. The dishwasher heat pump system includes a collection section 29, which has an inner tank 291 for storing washing liquid. The first main washing liquid path m and the first washing liquid branch path f are both connected to the inner tank 291. The first washing liquid branch path f includes the washing liquid flow path of the second condenser 13. The dishwasher heat pump system includes a second valve 254, which is disposed on the first washing liquid branch path f and can be used to control the connection or disconnection between the first main washing liquid path m and the first washing liquid branch path f.

[0053] In some embodiments, the dishwasher heat pump system includes a first water pump 24 and a second water pump 26. The first water pump 24 is located in the first main washing liquid channel m and is used to drive the washing liquid in the inner tank 291 into the first washing liquid branch channel f and the second washing liquid branch channel n. The liquid collection section 29 is equipped with a temperature sensor (not shown). When the temperature of the washing liquid in the inner tank 291 is low and needs to be heated, the second valve 254 is opened, and the washing liquid in the first washing liquid branch channel f flows into the washing liquid flow path of the second condenser 13, where it exchanges heat with the third refrigerant flow path of the second condenser 13, thereby heating the washing liquid flow path. After the temperature rises, it returns to the inner tank 291 and continues to circulate until the target temperature of the washing liquid in the inner tank 291 is reached, at which point the second valve 254 is disconnected. The second water pump 26 is connected to the liquid collection section 29 and is used to drive the washing liquid in the inner tank 291 to be discharged from the dishwasher. The dishwasher includes a third washing liquid branch channel e, which is connected to the inner tank 291.

[0054] refer to Figure 1 As shown, in some embodiments, the dishwasher heat pump system has a first air duct 500 and a second air duct 600, a first evaporator 17 located in the first air duct 500, and the first air duct 500 is in communication with the external environment; a first condenser 21 and a second evaporator 23 are both located in the second air duct 600; the second air duct 600 is in communication with the inner cavity of the washing chamber 300.

[0055] In some embodiments, the dishwasher heat pump system includes a washing chamber 300 and a spray section. The spray section has a spray channel, and the second washing liquid branch n and the inner cavity of the washing chamber 300 are both connected to the spray channel. Further, in some embodiments, the first water pump 24 can drive the washing liquid in the inner tank 291 to flow into the first washing liquid main line m and the second washing liquid branch n, and then enter the spray channel to spray the washing liquid into the inner cavity of the washing chamber 300 through the spray channel.

[0056] Figures 5 to 24 To conform to the structural schematic diagram of the dishwasher heat pump device of this application, the dishwasher heat pump device includes a compressor 11, a bypass pipe 182, a first valve 12, and a first evaporator 17; one end of the bypass pipe 182 is connected to the first valve 12, and the other end of the bypass pipe 182 is connected to the first evaporator 17; the compressor 11 is connected to the first valve 12, the bypass pipe 182 has a pipe, the dishwasher heat pump device includes a bypass branch a1, the bypass branch a1 includes at least a portion of the pipe of the bypass pipe 182; the first valve 12 can be used to control the connection between the outlet of the compressor 11 and the pipe of the bypass pipe 182.

[0057] In this application, the dishwasher heat pump device includes a compressor 11, a bypass pipe 182, a first valve 12, and a first evaporator 17. The compressor 11 is connected to the first valve 12, one end of the bypass pipe 182 is connected to the first valve 12, and the other end of the bypass pipe 182 is connected to the first evaporator 17. The bypass pipe 182 has a pipe. The dishwasher heat pump device includes a bypass branch a1. The first valve 12 can be used to control the connection between the outlet of the compressor 11 and the pipe of the bypass pipe 182. When the first evaporator 17 is frosted, the high-temperature and high-pressure refrigerant gas discharged by the compressor 11 flows into the first refrigerant flow path of the first evaporator through the bypass branch a1, thereby defrosting the first evaporator 17 to reduce energy consumption.

[0058] refer to Figure 13 and Figure 14 As shown, in some embodiments, the dishwasher heat pump device includes a first pipe 181 and a second pipe 183; the compressor 11 and the first valve 12 are both connected to the first pipe 181; one end of the bypass pipe 182 is connected to the first valve 12, and the other end of the bypass pipe 182 is connected to the first evaporator 17; one end of the second pipe 183 is connected to the first evaporator 17, and the other end of the second pipe 183 is connected to the compressor 11; the first pipe 181, the bypass pipe 182, and the second pipe 183 all have pipes; the first main line a includes the pipes of the first pipe 181 and the pipes of the second pipe 183, and the bypass branch a1 includes at least a portion of the pipes of the second pipe 183; the compressor 11 has an inlet and an outlet, the outlet is connected to the pipe of the first pipe 181, and the inlet is connected to the pipe of the second pipe 183.

[0059] In some embodiments, there are at least two first evaporators 17, and a bypass pipe 182 is connected to each of the two first evaporators 17. The first evaporators 17 are connected to the compressor 11 through a second pipe 183. That is, the refrigerant in the bypass pipe 182 enters the first refrigerant flow path of the two first evaporators 17 respectively, and after exchanging heat with the surrounding environment, it enters the compressor 11 through the pipe of the second pipe 183.

[0060] refer to Figure 23 and Figure 24 As shown, in some embodiments, the second condenser 13 includes a first tube 133 and a second tube 134, with the second tube 134 partially located inside the first tube 133. The first tube 133 includes a third refrigerant flow path, and the second tube 134 includes a washing liquid flow path. A drain pump is provided on the second tube 134 to reduce the problem of long-term storage of the washing liquid in the second condenser 13 leading to deterioration and odor.

[0061] refer to Figure 5As shown, in some embodiments, the dishwasher heat pump device has a storage cavity 100, in which the compressor 11, the first evaporator 17, and the first valve 12 are all located, and the storage cavity 100 is in communication with the external environment; the dishwasher includes a first cavity 200 and a washing cavity 300, the first cavity 200 is located in the storage cavity 100, and the inner cavity of the first cavity 200 is in communication with the inner cavity of the washing cavity 300; the dishwasher includes a second evaporator 23, in which both the first condenser 21 and the second evaporator 23 are located in the inner cavity of the first cavity 200.

[0062] refer to Figure 6 and Figure 7 As shown, in some embodiments, the dishwasher heat pump device includes a first fan 18 and a second fan 22. The first fan 18 is located in the air cavity 100 along the thickness direction Z of the dishwasher and is located on one side of the first evaporator 17, capable of driving the heat from the surrounding environment to exchange heat with the first evaporator 17. The second fan 22 is located in the first cavity 200 and is located between the first condenser 21 and the second evaporator 23, reducing the influence of heat around the first condenser 21 and the second evaporator 23. The direction perpendicular to the thickness direction Z is defined as horizontal X, and along the horizontal X, the compressor 11 is located on one side of the first evaporator 17.

[0063] refer to Figure 7 and Figure 8As 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.

[0064] 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.

[0065] refer to Figure 9As 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.

[0066] 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.

[0067] 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.

[0068] refer to Figure 8 and Figure 9As 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.

[0069] refer to Figure 8 and Figure 10 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] refer to Figure 11 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.

[0074] refer to Figure 10As 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.

[0075] 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.

[0076] 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.

[0077] refer to Figure 8 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.

[0078] 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.

[0079] 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.

[0080] refer to Figure 12 and Figure 13 As shown, in some embodiments, the dishwasher heat pump device includes a second condenser 21, a second evaporator 17, a first fan 18, and a second fan 22; the first evaporator 23 and the second evaporator 17 are connected in parallel, the first condenser 13 and the second condenser 21 are connected in parallel, the second condenser 21 and the second fan 22 are both located inside the first cavity 200, and the first fan 18 is located on the periphery of the first cavity 200; the second fan 22 is located between the second condenser 21 and the first evaporator 23; this application provides two condensers and two evaporators, and different condensers and evaporators can be selected according to different operating modes to achieve energy saving.

[0081] refer to Figure 11 , Figure 12 and Figure 17 As shown, in some embodiments, along the thickness direction Z of the dishwasher heat pump device, the first fan 18 is located on one side of the second evaporator 17, so that a larger first evaporator 23 can be placed, thereby improving the heat exchange efficiency; the plane perpendicular to the thickness direction Z of the dishwasher heat pump device is defined as the projection plane, and along the thickness direction Z of the dishwasher heat pump device, the orthographic projection of the second evaporator 17 on the projection plane is the first projection plane, and the orthographic projection of the first fan 18 on the projection plane is the second projection plane, and at least part of the first projection plane overlaps with the second projection plane.

[0082] refer to Figures 2 to 4 As shown, this application also provides a dishwasher, which includes a dishwasher cavity 300 and the dishwasher heat pump device mentioned above.

[0083] It should be noted that in this application, the thickness direction Z and the horizontal direction X of the dishwasher heat pump device are both perpendicular to the direction of gravity, and the height direction H of the dishwasher heat pump device is perpendicular to the thickness direction Z and the horizontal direction X, and parallel to the direction of gravity.

[0084] refer to Figure 15 , Figure 16 and Figure 17 As shown, in some embodiments, the dishwasher heat pump device includes a first receiving portion 171 and a first driving pump 152, the first driving pump 152 being connected to the first receiving portion 171; along the direction of gravity, a first groove 1701 is at least partially located below the first evaporator 17; the liquid collecting portion 29 has an inner groove 291, the first receiving portion 171 has the first groove 1701, the inner groove 291 and the first groove 1701 are in communication, both the inner groove 291 and the first groove 1701 are used for fluid flow, and the first driving pump 152 is used to drive the fluid in the first groove 1701 into the inner groove 291. In this application, the fluid generated by the first evaporator 17 is collected in the first groove 1701, and the washing liquid in the first groove 1701 is flowed into the inner groove 291 by the first driving pump 152, achieving the purpose of water storage.

[0085] In some embodiments, the dishwasher heat pump device includes a first fluid pipe 141 connected between the liquid collection part 29 and the first receiving part 171, and a first drive pump 152 connected between the first fluid pipe 141 and the first receiving part 171; the first fluid pipe 141 has a first fluid conduit, and the first groove 1701 and the inner groove 291 are both in communication with the first fluid conduit.

[0086] In some embodiments, the dishwasher heat pump device includes a second receiving portion 172 having a second groove 1702 located at least partially below the second evaporator 23 along the direction of gravity; the inner groove 291 and the second groove 1702 are both in communication with the first groove 1701; the dishwasher has a housing 700, the first evaporator 17, the second evaporator 23, the liquid collection portion 29, the first receiving portion 171, and the second receiving portion 172 are all located inside the housing 700, the housing 700 has a top wall and a bottom wall 160 located on both sides of the liquid collection portion 29 along the direction of gravity, the bottom wall 160 being located below the inner groove 291, the first groove 1701, and the second groove 1702, and the inner groove 291 and the second groove 1702 being located away from the bottom wall 160 relative to the first groove 1701.

[0087] refer to Figure 18 and Figure 19 As shown, in some embodiments, the dishwasher heat pump device includes a second fluid pipe 142, which is connected between the first receiving portion 171 and the second receiving portion 172; the second fluid pipe 142 has a second fluid conduit, and the first groove 1701 and the second groove 1702 are both in communication with the second fluid conduit.

[0088] It should be noted that the direction of gravity mentioned in this application is consistent with the height direction when the dishwasher heat pump device is placed. The first groove 1701 is at least partially located below the first evaporator 17, and the second groove 1702 is at least partially located below the second evaporator 23. This means that the first groove 1701 can collect the condensate produced by the first evaporator 17, and the second groove 1702 can collect the condensate produced by the second evaporator 23.

[0089] refer to Figure 19 and Figure 20 As shown, in some embodiments, the first receiving part 171 has a first opening 1711, the first groove 1701 communicates with the first opening 1711, the second receiving part 172 has a second opening 1712, the second groove 1702 communicates with the second opening 1712, the second opening 1712 communicates with the second fluid conduit of the second fluid conduit 142, and then enters the first groove 1701.

[0090] After a dishwasher has been running for a period of time, the evaporator accumulates a lot of dust and impurities due to heat exchange with the external environment. These impurities accumulate in the water collection container located below the evaporator. In related technologies, a drive pump is used to expel these impurities from the dishwasher, but this process can easily become clogged, making it difficult to expel them. (Reference) Figure 17 As shown, in some embodiments, the dishwasher of this application includes a first connecting portion 143, which is connected between the liquid collecting portion 29 and the first receiving portion 171; the first receiving portion 171 has a first groove 1701, which is at least partially located below the first evaporator 17 along the direction of gravity; the first connecting portion 143 is located inside the housing 700, and the bottom wall 160 is located below the inner groove 291 and the first groove 1701, with the first groove 1701 being closer to the bottom wall 160 relative to the inner groove 291; the first connecting portion 143 has a connecting channel; the dishwasher has a first state, in which both the inner groove 291 and the first groove 1701 are in communication with the connecting channel.

[0091] In this application, the first connecting part 143 of the dishwasher heat pump device is connected between the liquid collecting part 29 and the first receiving part 171. The first receiving part 171 has a first groove 1701. In the first state, both the inner groove 291 and the first groove 1701 are connected to the connecting channel. The fluid in the inner groove 291 can flow into the first groove 1701 to wash away dust and impurities generated in the first groove 1701, reduce the accumulation of dust and impurities in the first groove 1701, and make it easier for the fluid in the first groove 1701 to be discharged from the dishwasher.

[0092] In some embodiments, the dishwasher has a second state in which the inner tub 291 is disconnected from the first groove 1701; the dishwasher includes a first control valve 144 disposed at the first connection portion 143, and the first control valve 144 can be used to switch the dishwasher to the first state or the second state.

[0093] Furthermore, in some embodiments, the dishwasher has a first state and a second state. The first control valve 144 is closed, and the inner tank 291 is not connected to the first groove 1701. The first connecting part 143 has a first inlet 1431 and a first outlet 1432. The inner tank 291 is connected to the first inlet 1431, and the first groove 1701 is connected to the first outlet 1432. In the first state, the first control valve 144 is open, and the inner tank 291 is connected to the first groove 1701 through the first connecting part 143. That is, the fluid in the inner tank 291 enters the first connecting part 143 through the first inlet 1431, and then enters the first groove 1701 through the first outlet 1432 of the first connecting part 143. The fluid in the first groove 1701 can be collected in the inner tank 291 of the liquid collection part 29 and discharged from the dishwasher by the second water pump 26, thereby achieving the function of rinsing the first receiving part 171.

[0094] refer to Figure 21 As shown, in another embodiment, in the first state, the first control valve 144 is opened, and the inner tank 291 is connected to the first groove 1701 through the first connecting part 143. That is, the fluid in the inner tank 291 enters the first connecting part 143 through the first inlet 1431, and then enters the first groove 1701 through the first outlet 1432 of the first connecting part 143. The fluid in the first groove 1701 does not enter the inner tank 291, but is directly discharged from the dishwasher, thereby achieving the function of rinsing the dust and impurities accumulated in the first groove 1701.

[0095] Whether to flush the first receiving part 171 can be determined by controlling the opening and closing of the first control valve 144; it should be noted that the first control valve 144 includes, but is not limited to, a solenoid valve, as well as a valve that can switch between the first state and the second state.

[0096] refer to Figure 22As shown, in some embodiments, the dishwasher heat pump device includes a liquid detection unit 173 connected to a first receiving unit 171. The dishwasher includes a liquid level detector 151, which is connected to the liquid detection unit 173 along with a first drive pump 152. The liquid detection unit 173 has a storage tank 153. At least a portion of the liquid level detector 151 and at least a portion of the first drive pump 152 are located in the storage tank 153. The storage tank 153 is connected to a first port 1711. The liquid level detector 151 is communicatively connected to the first drive pump 152. The storage tank 153 is used to store fluid. The first drive pump 152 can be used to drive the fluid in the first groove 1701 into the storage tank 153. When the liquid level detector 151 receives a signal that the target liquid level has been reached, it can start the first drive pump 152 to drive the fluid in the storage tank 153 into the inner tank 291.

[0097] It should be noted that in this application, the liquid level detector 151 is used to detect the liquid level of the fluid in the storage tank 153 of the liquid detection unit 173. If the target liquid level is reached, the first drive pump 152 will be activated to pump the fluid in the first groove 1701 into the storage tank 153 through the first port 1711, and then into the inner tank 291 through the first fluid pipe 141. The fluid can flow into the washing chamber 300 or be discharged from the dishwasher. Furthermore, the liquid level detector 151 in this application can be selected from a liquid level float switch to achieve the purpose of controlling the liquid level.

[0098] refer to Figure 17 , Figure 18 and Figure 19 As shown, in some embodiments, the dishwasher heat pump device includes a mounting part 161, which is connected to a second receiving part 172. The first condenser 21 and the second fan 22 are both mounted on the mounting part 161. Further, the mounting part 161 and the second receiving part 172 are fixedly connected or integrally formed. The second fan 22 and the first condenser 21 are both connected to the mounting part 161.

[0099] It should be understood that the gravity in this application is the force that an object experiences due to the Earth's attraction, as is generally understood, and its direction is vertically downward. The direction of gravity described in this application is the direction of gravity of the dishwasher under static use.

[0100] refer to Figure 21 As shown, in some embodiments, the first evaporator 17 is located between the first fan 18 and the liquid collection section 29, which allows for the placement of a larger volume first evaporator 17, thereby improving the heat exchange efficiency of the dishwasher; along the height direction H of the dishwasher heat pump device, the 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, which enables a more compact arrangement of the dishwasher's components and reduces the size of the dishwasher.

[0101] refer to Figure 13 As shown, in some embodiments, the dishwasher heat pump device includes an electronic control device 165, which is connected to the bottom wall 160. The electronic control device includes an electronic control board 1651 and a heat dissipation unit 1652. The electronic control device 165 has a first vent, which communicates with the outside. The first vent has a first direction X1. The heat dissipation unit 1652 drives the surrounding air to be discharged from the electronic control device 165 along the first direction X1. The direction perpendicular to the first direction X1 is defined as the second direction Y1. Along the second direction Y1, the heat dissipation unit 1652 is located on one side of the electronic control board 1651. Further, the first direction X1 is parallel to the horizontal direction X of the dishwasher, and the second direction Y1 is parallel to the thickness direction Z of the dishwasher. In this application, the first direction X1 is the air outlet direction of the electronic control device 165.

[0102] refer to Figure 2 and Figure 3 As shown, in some embodiments, the housing 700 includes a door 403; along the thickness direction Z, the door 403 is located on one side of the first cavity 200; the housing 700 has a front end 41 and a rear end 42, along the thickness direction Z, the first evaporator 17 is close to the door 403 relative to the electronic control device 165, further, along the thickness direction Z, the first evaporator 17 is close to the front end 41 relative to the electronic control device 165, and the electronic control device 165 is close to the rear end 42 relative to the first evaporator 17;

[0103] In some embodiments, the first fan 18 is close to the front end 41 relative to the first evaporator 17. Both the front end 41 and the rear end 42 have ventilation openings. The rear end 42 has a first air inlet 411, and the front end 41 has a second air inlet 412 and a first air outlet 413. Along the horizontal direction X, the second air inlet 412 is located on one side of the first air outlet 413.

[0104] In some embodiments, the first fan 18 is an exhaust fan that draws air from the outside environment into the air chamber 100 through the first air inlet 411 and the second air inlet 412 at the rear end 42, passes through the first evaporator 17, and is then drawn out of the dishwasher through the first air outlet 413 at the front end. On the one hand, the air from the outside environment can exchange heat with the first evaporator 17 to meet the required air volume of the heat pump system; on the other hand, it can dissipate heat from the components in the air chamber 100 to improve the service life of each component.

[0105] refer to Figure 1As shown, in some embodiments, the dishwasher heat pump system includes a water treatment device 28 and a water inlet valve 27. Both the water treatment device 28 and the water inlet valve 27 are located in the third washing liquid branch e. ​​At least part of the water treatment device 28 is located in the empty cavity 100. Along the horizontal direction X, the compressor 11 and the water treatment device 28 are located on both sides of the liquid collection section 29. Along the thickness direction Z, the compressor 11 is closer to the first evaporator 17 than the liquid collection section 29. The first evaporator 17 can use 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 evaporator 17 makes the dishwasher components more compact and reduces the size of the dishwasher. The water treatment device 28 in this application includes a water softener and a breather.

[0106] refer to Figure 1 As shown, in some embodiments, the defrosting mode of the dishwasher heat pump system has a refrigerant circulation path, wherein the refrigerant circulation path is as follows: the first evaporator 17 is located in the air cavity 100, which is connected to the external environment. When the external environment temperature is low and frost is detected blocking the air circulation channel of the first evaporator 17, the first valve 12 is switched, controlling the first valve port 121 to connect with the second valve port 122, and the first valve port 121 to disconnect from the third valve port 123 and the fourth valve port 124. The first fan 18 is in the off state, and the high-temperature and high-pressure refrigerant gas enters the first valve port 121 from the outlet of the compressor 11 through the first main road a, and then enters the first refrigerant flow path from the inlet of the first evaporator 17. The high-temperature gas refrigerant exchanges heat with the environment around the first evaporator 17 and defrosts the first evaporator 17 through the hot gas bypass. After defrosting, the high-temperature gas refrigerant is still a gaseous refrigerant and returns to the compressor 11 through the first main road a.

[0107] refer to Figure 1As shown, in some embodiments, the washing mode of the dishwasher heat pump system includes a refrigerant circulation path and a washing liquid circulation path; wherein the refrigerant circulation path is as follows: the first fan 18 operates, and the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 11 switches the first valve 12, connecting the first valve port 121 and the fourth valve port 124 to enter the second condenser 13, disconnecting the first valve port 121 from the second valve port 122 and the third valve port 123, and condensing the refrigerant in the third refrigerant flow path of the first pipe body 133 from the inlet of the second condenser 13, releasing a large amount of heat to heat the washing liquid in the second pipe body 134, and then passing through the first one-way valve 14. The refrigerant, along with the dryer filter 15, then enters the first throttling valve 16 for throttling. After throttling, it becomes a two-phase gas-liquid refrigerant, which then enters the first evaporator 17. A first fan 18 is installed near the first evaporator 17. The first fan 18 drives the air from the surrounding environment through the compressor 11 into the first evaporator 17, and then discharges it into the external environment through the first fan 18, forming the first air duct 500. On the one hand, this can dissipate heat from the compressor 11 and improve its service life. On the other hand, the first evaporator 17 can use the waste heat generated by the compressor 11 for heat exchange. After absorbing heat in the first evaporator 17, the heat exchange fluid becomes a low-temperature, low-pressure gas and returns to the compressor 11.

[0108] In some embodiments, during the washing mode, the refrigerant circulation path is as follows: the first water pump 24 starts, the washing liquid stored in the inner tank 291 of the liquid collection section 29 enters the first main washing liquid path m, the second valve 254 is opened, and the washing liquid in the first main washing liquid path m flows to the first washing liquid branch path f and the second washing liquid branch path n respectively, connecting them. The refrigerant in the first washing liquid branch path f enters the second pipe body 134 for heating, and then returns to the inner tank 291; the washing liquid in the second washing liquid branch path n directly enters the spray channel and is sprayed into the washing chamber 300. The sprayed washing liquid flows back to the inner tank 291, and after passing through the washing liquid in the first washing liquid branch path f and the spray... The rinsed washing liquid mixes in the inner tank 291, raising its temperature and circulating continuously until it reaches the required cleaning temperature for tableware such as bowls and chopsticks. When the cleaning temperature is reached, the second valve 254 closes, and the washing liquid in the inner tank 291 enters the second washing liquid branch n through the first main washing liquid path m. The washing liquid in the second washing liquid branch n directly enters the spray channel and is sprayed into the washing chamber 300. The sprayed washing liquid flows back to the inner tank 291, completing a cycle of washing liquid flow. That is, the first washing liquid branch f and the second washing liquid branch n are connected in parallel, which reduces the operating resistance of the first water pump 24 and achieves energy saving and high efficiency.

[0109] refer to Figure 1As shown, in some embodiments, in the drying mode, the refrigerant circulation path is as follows: The second fan 22 operates, and the high-temperature, high-pressure gaseous refrigerant discharged from the compressor 11 switches the first valve 12, connecting the first valve port 121 with the third valve port 123, flowing into the inlet of the first condenser 21. The first valve port 121 is disconnected from the second valve port 122 and the fourth valve port 124. After releasing latent heat in the first condenser 21, the refrigerant becomes a high-temperature, high-pressure liquid refrigerant. It then passes through the second one-way valve 124 and the dryer filter 15, and is further throttled by the second throttling valve 20, becoming a two-phase gas-liquid refrigerant that enters the inlet of the second evaporator 23. After absorbing heat, it becomes a low-temperature liquid. Low-pressure gas flows out from the outlet of the second evaporator 23 and returns to the inlet of the compressor 11. The flow path of the gas-liquid two-state washing liquid in the second air duct 600 is as follows: the high-temperature and high-humidity gaseous washing liquid in the washing chamber 300 passes through the second evaporator 23, where it liquefies and condenses into a liquid state on its surface and is 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 300 absorb heat and evaporate. The water droplets formed on the surface of the second evaporator 23 are discharged from the dishwasher through the water collection tank and other equipment. This cycle continues, and the humidity in the washing chamber 300 will decrease until the drying requirements are met.

[0110] In this application, a first evaporator 17 and a second condenser 13 are used in the washing mode, and a first condenser 21 and a second evaporator 23 are used in the drying mode. That is, different evaporators and condensers are used in the washing 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 system to operate better.

[0111] 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.

[0112] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A dishwasher heat pump system, characterized by: The dishwasher heat pump system comprises a compressor (11), a first evaporator (17), a first condenser (21) and a first valve (12); The dishwasher heat pump system comprises a first main path (a), a bypass branch (a1) and a first main flow path (c), and the first valve (12) can be used to control the first main path (a) to communicate with one of the bypass branch (a1) and the first main flow path (c); The compressor (11) is arranged in the first main path (a), the bypass branch (a1) has a first end (101) and a second end (102), the first end (101) is connected between the compressor (11) and the first condenser (21), and the second end (102) is connected between the first evaporator (17) and the first condenser (21); The first evaporator (17) has a first refrigerant flow path, the bypass branch (a1) and the first refrigerant flow path communicate; the first main path (a), the bypass branch (a1) and the first main flow path (c) can be used to flow through refrigerant.

2. The dishwasher heat pump system of claim 1, wherein: The dishwasher heat pump system comprises a second condenser (13), and the first condenser (21) and the second condenser (13) are connected in parallel; The dishwasher heat pump system comprises a second main flow path (b), the first condenser (21) has a second refrigerant flow path, the first main flow path (c) comprises a second refrigerant flow path, the second condenser (13) has a third refrigerant flow path, and the second main flow path (b) comprises the third refrigerant flow path; The first valve (12) can control the first main path (a) to communicate with one of the first main flow path (c) and the second main flow path (b).

3. The dishwasher heat pump system of claim 2, wherein: The dishwasher has a defrosting mode, in which the first main path (a) communicates with the bypass branch (a1), and the first main path (a) is disconnected with the first main flow path (c) and the second main flow path (b).

4. A dishwasher heat pump arrangement, characterized by: The dishwasher heat pump device comprises a compressor (11), a bypass pipe (182), a first valve (12) and a first evaporator (17); the compressor (11) is connected with the first valve (12), one end of the bypass pipe (182) is connected with the first valve (12), and the other end of the bypass pipe (182) is connected with the first evaporator (17); the bypass pipe (182) has a pipe, the dishwasher heat pump device comprises the bypass branch (a1), and the bypass branch (a1) comprises at least part of the pipe of the bypass pipe (182); The first valve (12) can be used to control the outlet of the compressor (11) to communicate with the pipe of the bypass pipe (182).

5. The dishwasher heat pump arrangement according to claim 4, characterized in that: The dishwasher heat pump device has a receiving cavity (100), the first evaporator (17) is located in the receiving cavity (100), and the receiving cavity (100) communicates with the external environment; The dishwasher heat pump device comprises a first cavity (200) and a washing cavity (300), the first cavity (200) is located in the accommodating cavity (100), and the inner cavity of the first cavity (200) is communicated with the inner cavity of the washing cavity (300); The dishwasher heat pump device comprises a second evaporator (23), the second evaporator (23) is connected in parallel with the first evaporator (17), and the first condenser (21) and the second evaporator (23) are located in the inner cavity of the first cavity (200).

6. The dishwasher heat pump arrangement according to claim 5, characterized in that: The dishwasher heat pump device comprises a first plate part (201) and a second plate part (202), the first plate part (201) and the second plate part (202) are connected with the first cavity (200), and the first plate part (201) and the second plate part (202) are an integral structure; The first plate part (201) has a first flow channel (211) and a first flow channel opening (203), the second plate part (202) has a second flow channel (212) and a second flow channel opening (204), the first flow channel opening (203) is communicated with the first flow channel (211), the second flow channel opening (204) is communicated with the second flow channel (212), and the first flow channel (211) and the second flow channel (212) are communicated with the inner cavity of the first cavity (200); Along the height direction (H) of the dishwasher heat pump device, the second flow channel opening (204) is closer to the first cavity (200) than the first flow channel opening (203).

7. The dishwasher heat pump arrangement according to claim 6, characterized in that: The second plate part (202) comprises a first face part (2021), and the side surface forming the second flow channel (212) comprises at least part of the surface of the first face part (2021); The second plate part (202) comprises a flow guide part (2022), the flow guide part (2022) has a flow guide surface, the flow guide surface is a curved surface, the flow guide surface intersects with the first face part (2021), and the bending direction of the flow guide surface is towards the second flow channel opening (204).

8. The dishwasher heat pump arrangement according to claim 6 or 7, wherein The first plate part (201) comprises an air inlet section (2015) and a first extension section (2016), the air inlet section (2015) comprises a first end part (20151) and a first communication part (20152), the first extension section (2016) comprises a second communication part (20153) and a third communication part (20154), the first communication part (20152) is directly connected with the second communication part (20153); along the thickness direction (Z) of the dishwasher heat pump device, the first end part (20151) is away from the second communication part (20153) relative to the first communication part (20152), the first flow channel opening (203) is arranged at the first end part (20151); along the height direction (H) of the dishwasher heat pump device, the third communication part (20154) is closer to the first cavity (200) relative to the second communication part (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) comprises 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 communicated, the first sub-flow channel (2111) penetrates through the first communication part (20152), the second sub-flow channel (2112) penetrates through the second communication part (20153) and the third communication part (20154), the first flow channel opening (203) is communicated with the first sub-flow channel (2111).

9. The dishwasher heat pump arrangement of claim 8, wherein, The dishwasher heat pump device has a horizontal direction (X), the horizontal direction (X) of the dishwasher heat pump device and the height direction (H) of the dishwasher heat pump device are both perpendicular to the thickness direction (Z) of the dishwasher heat pump device, the direction in which the first end part (20151) points to the first communication part (20152) is defined as a first extension direction (X-1), the direction in which the second communication part (20153) points to the third communication part (20154) is defined as a second extension direction (X-2), the first extension direction (X-1), the second extension direction (X-2) and the thickness direction (Z) of the dishwasher heat pump device are in the same plane perpendicular to the horizontal direction (Z) of the dishwasher heat pump device; The first extension 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 communication part (20152) is away from the first cavity (200) relative to the first end part (20151), the included angle between the first extension direction (X-1) and the thickness direction (Z) of the dishwasher heat pump device is an acute angle or a right angle.

10. The dishwasher heat pump arrangement according to claim 6 or 7, wherein, The second plate part (202) comprises an air outlet section (2018) and a first flat section (2019), the air outlet section (2018) comprises a first side (20181) and a second side (20182), the second flow passage opening (204) is arranged on the first side (20181), the first flat section (2019) comprises a third side (20183) and a fourth side (20184), the second side (20182) is directly connected with the third side (20183), along the thickness direction (Z) of the dishwasher heat pump device, the first side (20181) is away from the third side (20183) relative to the second side (20182); along the height direction (H) of the dishwasher heat pump device, the fourth side (20184) is closer to the first cavity (200) relative to the third side (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 passage (212) comprises a first branch flow passage (2121) and a second branch flow passage (2122), the first branch flow passage (2121) and the second branch flow passage (2122) are communicated, the first branch flow passage (2121) penetrates the second side (20182), and the second branch flow passage (2122) penetrates the third side (20183) and the fourth side (20184), the second flow passage opening (204) is communicated with the first branch flow passage (2121).

11. The dishwasher heat pump arrangement of claim 10, wherein, The dishwasher heat pump device has a horizontal direction (X) and a height direction (H), both of which are perpendicular to the thickness direction (Z) of the dishwasher heat pump device, a projection plane perpendicular to the horizontal direction (X) of the dishwasher heat pump device is defined, a first inclined direction (Y-1) in which the first side (20181) points to the second side (20182) is defined, a second inclined direction (Y-2) in which the third side (20183) points to the fourth side (20184) is defined, and 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 in the projection plane; 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 (20182) is away from the first cavity (200) relative to the first side (20181), and the included 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.

12. The dishwasher heat pump arrangement of claim 11, wherein, A plane perpendicular to the thickness direction (Z) of the dishwasher heat pump device is defined as a cross section (1001), 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 passage opening (204) relative to the second cross section (1003), the first cross section (1002) intersects the air outlet section (2018) to obtain a first communication opening (1004), the second cross section (1003) intersects the air outlet section (2018) to obtain a second communication opening (1005), the flow area of the first communication opening (1004) is smaller than the flow area of the second communication opening (1005).

13. The dishwasher heat pump arrangement according to claim 6 or 7, wherein, The dishwasher heat pump device includes a flow guide portion (2022), the flow guide portion (2022) is at least partially located in the air outlet section (2018), and the flow guide portion (2022) is spaced apart from the side wall of the second flow passage (212); The flow guide portion (2022) includes a first flow guide end portion (2023) and a second flow guide end portion (2024), along the thickness direction (Z) of the dishwasher heat pump device, the first flow guide end portion (2023) is closer to the second flow passage opening (204) relative to the second flow guide end portion (2024).

14. The dishwasher heat pump arrangement according to claim 6 or 7, wherein, The dishwasher heat pump device includes a connecting section (2011), the first plate portion (201) and the second plate portion (202) are connected with the connecting plate section (2011), the first plate portion (201) is fixedly connected with the connecting section (2011) or is integrally formed with the connecting section (2011), and the second plate portion (202) is fixedly connected with the connecting section (2011) or is integrally formed with the connecting section (2011).

15. The dishwasher heat pump arrangement of claim 14, 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 with the air inlet section (2015), the other end of the first connecting section (2031) is connected with the air outlet section (2018), one end of the second connecting section (2032) is connected with the first extension section (2016), and the other end of the second connecting section (2032) is connected with the air outlet section (2018). The connecting section (2011) has a cavity (2012), and the first flow passage (211) and the second flow passage (212) are isolated from the cavity (2012).

16. The dishwasher heat pump arrangement according to claim 6 or 7, characterized in that: The dishwasher includes a liquid collecting portion (29), a first receiving portion (171), and a first connecting portion (143), the first connecting portion (143) is connected between the liquid collecting portion (29) and the first receiving portion (171); The liquid collecting portion (29) has an inner groove (291), the first receiving portion (171) has a first recess (1701), and the dishwasher includes a first evaporator (17), and along the gravity direction, the first recess (1701) is at least partially located below the first evaporator (17); The dishwasher has a housing (700), the first evaporator (17), the liquid collecting portion (29), the first receiving portion (171) and the first connecting portion (143) are located in the housing (700), the housing (700) has a top wall and a bottom wall (160), the top wall and the bottom wall (160) are located on both sides of the liquid collecting portion (29) in the direction of gravity, the bottom wall (160) is located below the inner groove (291) and the first groove (1701), and the first groove (1701) is close to the bottom wall (160) relative to the inner groove (291); the first connecting portion (143) has a connecting channel; The dishwasher has a first state, in which the inner groove (291) and the first groove (1701) are in communication with the connecting channel.

17. The dishwasher heat pump apparatus of any one of claims 4-7, wherein: The dishwasher heat pump device includes an electric control device (165), the electric control device (165) is connected with the bottom wall (160), and the electric control device includes an electric control board (1651) and a heat dissipation portion (1652); The electric control device (165) has a ventilation opening, the ventilation opening is in communication with the outside, the ventilation opening has a first direction (X1), and a direction perpendicular to the first direction (X1) is defined as a second direction (Y1), along the second direction (Y1), the heat dissipation portion (1652) is located on one side of the electric control board (1651).

18. The dishwasher heat pump apparatus of any one of claims 4-7, characterized in that: The dishwasher includes a spraying portion and a washing cavity (300), the spraying portion has a spraying channel, and the inner groove (291) and the inner cavity of the washing cavity (300) are in communication with the spraying channel; The dishwasher includes a first drive pump (152), the first receiving portion (171) and the liquid collecting portion (29) are connected with the first drive pump (152) respectively; the first drive pump (152) can be used for driving the fluid in the first groove (1701) to flow into the inner groove (291).

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