Heat pump drying assembly and washing electric appliance

Abstract

The utility model discloses a heat pump drying assembly and a washing electric appliance. The heat pump drying assembly comprises an air duct component and a heat pump system, the air duct component comprises a heat exchange shell, the heat exchange shell is configured to be communicated with an inner container of the washing electric appliance, a ventilation duct is formed in the heat exchange shell, and the heat pump system comprises a compressor, a condenser, a throttling device and an evaporator which form a closed refrigerant loop. The evaporator and the condenser are arranged in the heat exchange shell in a spaced mode, the evaporator is used for cooling airflow flowing out of the inner container, the condenser is used for heating airflow flowing into the inner container, a bypass air channel is formed between one heat exchanger of the evaporator and the condenser and the inner wall of the heat exchange shell, and the bypass air channel bypasses the heat exchanger. And the air inlet side and the air outlet side of the heat exchanger are communicated. Therefore, the energy absorbed by the refrigerant of the evaporator and the energy released by the refrigerant of the condenser are reduced, and the temperature difference of the airflow can be reduced, so that the working load of the compressor is reduced, and the drying effect of the heat pump system is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a heat pump drying assembly and a washing appliance. Background Technology

[0002] In related technologies, washing appliances include an inner tank and a heat pump system, and these appliances have a drying mode for drying dishes. However, the drying efficiency of the heat pump system during the drying process in these washing appliances needs further improvement. Utility Model Content

[0003] This application provides a heat pump drying component and a washing appliance, which at least solves the technical problem of poor drying effect of the heat pump drying system in the washing appliance.

[0004] This application provides a heat pump drying assembly for use in washing appliances, the heat pump drying assembly comprising:

[0005] A duct component, the duct component including a heat exchange housing configured to communicate with the inner tank of the washing appliance, the heat exchange housing forming a ventilation duct;

[0006] A heat pump system comprising a compressor, a condenser, a throttling device, and an evaporator forming a closed refrigerant circuit, wherein the evaporator and the condenser are spaced apart in the heat exchange housing, the evaporator being used to cool the airflow flowing out of the inner liner, and the condenser being used to heat the airflow flowing into the inner liner;

[0007] In this embodiment, a bypass duct is formed between one of the heat exchangers in the evaporator and the condenser and the inner wall of the heat exchange shell. The bypass duct bypasses the heat exchanger and connects the air inlet side and air outlet side of the heat exchanger.

[0008] In the heat pump drying assembly of this application embodiment, the airflow bypasses the evaporator or condenser, reducing the energy absorbed by the refrigerant in the evaporator and the energy released by the refrigerant in the condenser. This reduces the temperature difference of the airflow, thereby reducing the workload of the compressor, improving the energy efficiency of the heat pump system, and thus improving the drying effect of the heat pump system.

[0009] In some embodiments, a bypass duct is formed between the evaporator and the inner wall of the heat exchange shell. The bypass duct bypasses the evaporator and connects the air inlet side and air outlet side of the evaporator. The bypass duct is configured to mix the airflow passing through the bypass duct with the airflow passing through the evaporator at the air outlet side of the evaporator.

[0010] In some embodiments, a bypass duct is formed between the upper side of the evaporator and the inner wall of the heat exchange shell.

[0011] In some embodiments, the heat pump drying assembly further includes a partition plate disposed between the inner wall of the evaporator and the heat exchange housing, the partition plate covering the evaporator, and a bypass duct forming between the inner wall of the heat exchange housing and the partition plate, the bypass duct connecting the upstream of the evaporator and the gap between the evaporator and the condenser.

[0012] In some embodiments, the projected height of the evaporator perpendicular to the airflow direction of the ventilation duct is equal to the projected height of the condenser perpendicular to the airflow direction of the ventilation duct, and the inner wall of the heat exchange shell bulges away from the evaporator to form the bypass airflow duct with the partition plate.

[0013] In some embodiments, the projected height of the evaporator perpendicular to the airflow direction of the ventilation duct is lower than the projected height of the condenser perpendicular to the airflow direction of the ventilation duct, and the partition plate abuts against the evaporator to form the bypass airflow duct.

[0014] In some embodiments, the partition plate is provided with a first ventilation hole located in the ventilation duct upstream of the evaporator, for guiding the airflow entering the ventilation duct to the air inlet side of the evaporator.

[0015] In some embodiments, the partition plate abuts against the evaporator and the condenser, the partition plate is provided with a second ventilation hole, the second ventilation hole and the first ventilation hole are arranged at intervals along the airflow direction of the ventilation duct, the second ventilation hole is located above or below the gap between the evaporator and the condenser, and the second ventilation hole connects the bypass duct and the gap between the evaporator and the condenser.

[0016] In some embodiments, the partition plate includes a first partition and a second partition, the first partition being located between the second vent and the first vent, the first partition abutting against the evaporator, and the second partition being located on the side of the second vent away from the first vent, the second partition abutting against the condenser.

[0017] In some embodiments, the heat exchange housing includes a first housing and a second housing detachably connected to the first housing, the evaporator and the condenser being housed within the second housing, and the partition plate being located between the inner walls of the evaporator and the first housing.

[0018] In some embodiments, the inner wall surface of the second shell is provided with a support strip, and the partition plate abuts against the end of the support strip.

[0019] In some embodiments, the second shell has an air inlet zone, a heat exchange zone, and an air outlet zone connected in sequence. The evaporator and the condenser are both disposed in the heat exchange zone. The partition plate covers the air inlet zone and extends to the heat exchange zone. A first vent on the partition plate is connected to the air inlet zone, and a second vent on the partition plate is connected to the heat exchange zone.

[0020] In some embodiments, the air duct component further includes an air inlet pipe and an exhaust pipe, both of which are connected to the inner tank of the washing appliance and the heat exchange housing.

[0021] This application provides a washing appliance, which includes an inner tank and a heat pump drying assembly, wherein the air duct component is connected to the inner tank.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a washing appliance according to certain embodiments of this application;

[0025] Figure 2 This is a partial perspective view of a washing appliance according to certain embodiments of this application;

[0026] Figure 3 This is another perspective view of a heat pump system according to one embodiment of this application;

[0027] Figure 4 This is an exploded view of another part of the heat pump system according to one embodiment of this application;

[0028] Figure 5 This is another partial cross-sectional schematic diagram of a heat pump system according to one embodiment of this application;

[0029] Figure 6 This is another partial cross-sectional schematic diagram of a heat pump system according to another embodiment of this application;

[0030] Figure 7 This is another partial cross-sectional schematic diagram of a heat pump system according to yet another embodiment of this application;

[0031] Figure 8 This is another perspective view of a heat pump system according to yet another embodiment of this application;

[0032] Figure 9This is another exploded structural diagram of a heat pump system according to yet another embodiment of this application;

[0033] Figure 10 This is a schematic diagram of the structure of the second shell in some embodiments of this application.

[0034] Explanation of reference numerals in the attached drawings: 1000-washing appliance, 1100-inner tank, 1101-washing chamber, 1110-heat pump drying assembly, 1200-heat pump system, 100-air duct component, 10-heat exchange shell, 11-ventilation duct, 12-bypass air duct, 13-first shell, 14-second shell, 15-air inlet area, 16-heat exchange area, 17-air outlet area, 18-baffle, 19-support bar, 20-evaporator, 21-evaporator fins, 22-evaporator heat exchange tube, 23-end plate, 30-condenser, 60-compressor, 70-air inlet pipe, 80-exhaust pipe, 90-throttling device, 1300-water cup, 400-partition plate, 410-first ventilation hole, 420-second ventilation hole, 430-first partition, 440-second partition. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] Please see Figure 1 The washing appliance 1000 of this application includes an inner tank 1100 and a heat pump drying assembly 1110. The heat pump drying assembly 1110 includes an air duct component 100 and a heat pump system 1200, and the air duct component 100 is connected to the inner tank 1100. The washing appliance 1000 is mainly used for washing various types of tableware. The inner tank 1100 can serve as the main structure of the washing appliance 1000. The inner tank 1100 forms a washing chamber 1101 with an opening, through which tableware and other objects can be placed. A bracket for supporting and fixing tableware and a water cup 1300 placed below the bracket can be provided in the washing chamber 1101. The water cup 1300 is used to collect and drain water generated during the washing and condensation processes. The washing appliance 1000 is, for example, a dishwasher.

[0041] The heat pump system 1200 dries the humid, hot air flowing out of the inner tank 1100 and heats the dried air so that the heated, dried air flows back into the inner tank 1100, thus achieving the effect of drying tableware and other items. The washing appliance 1000 is, for example, a dishwasher. It should be noted that the dried air mentioned above is relative to the humid, hot air inside the inner tank 1100, and does not mean that the air contains absolutely no moisture.

[0042] Please see Figures 2-5 In some embodiments, the air duct component 100 includes a heat exchange housing 10 configured to communicate with the inner tank 1100 of the washing appliance 1000. The heat exchange housing 10 forms a ventilation duct 11. The heat pump system 1200 includes a compressor 60, a condenser 30, a throttling device 90, and an evaporator 20 constituting a closed refrigerant circuit. The evaporator 20 and the condenser 30 are spaced apart in the heat exchange housing 10. The evaporator 20 is used to cool the airflow flowing out of the inner tank 1100, and the condenser 30 is used to heat the airflow flowing into the inner tank 1100. A bypass air duct 12 is formed between one of the heat exchangers in the evaporator 20 and the inner wall of the heat exchange housing 10. The bypass air duct 12 bypasses the heat exchanger and connects the air inlet side and the air outlet side of the heat exchanger.

[0043] In the heat pump drying assembly 1110 of this application embodiment, the airflow bypasses the evaporator 20 or the condenser 30, reducing the energy absorbed by the refrigerant in the evaporator 20 and the energy released by the refrigerant in the condenser 30. This reduces the temperature difference of the airflow, thereby reducing the workload of the compressor 60, improving the energy efficiency of the heat pump system 1200, and thus improving the drying effect of the heat pump system 1200.

[0044] Specifically, the heat exchange housing 10 is used for ventilation. The heat exchange housing 10 can be made of easily moldable materials such as plastic, making it easy to manufacture. The ventilation channel 11 formed by the heat exchange housing 10 is used to achieve the effect of ventilation, allowing airflow to circulate between the inner tank 1100 of the washing appliance 1000 and the ventilation channel 11, so as to achieve the effect of drying tableware and other items.

[0045] The heat pump system 1200 is a module with heat exchange function. The heat pump system 1200 has at least some of the components of the heat pump system 1200 of the washing appliance 1000, enabling the washing appliance 1000 to achieve the effect of drying tableware and other items through the heat pump system 1200.

[0046] The heat exchange housing 10 can be configured with a specific external structure according to the installation location of the heat pump system 1200, so that the heat pump system 1200 can fit more compactly with the surrounding components. The heat exchange housing 10 is connected to the inner liner 1100.

[0047] Evaporator 20 is a heat exchanger in heat pump system 1200. When heat pump system 1200 is working, evaporator 20 can cool by absorbing heat from the air around evaporator 20 to lower the temperature of the surrounding air, so that the airflow flowing through evaporator 20 condenses to form condensate water, thus achieving the effect of drying the air.

[0048] The evaporator 20 is roughly flat. The evaporator 20 can be placed vertically, or in other words, the length of the evaporator 20 is roughly horizontal. The length of the evaporator 20 is roughly parallel to the airflow direction X of the ventilation duct 11, so as to increase the contact area between the airflow in the ventilation duct 11 and the evaporator 20, which is beneficial to improving the drying effect of the air flowing through the evaporator 20.

[0049] The condenser 30 is also a heat exchanger in the heat pump system 1200. When the heat pump system 1200 is working, the condenser 30 can generate heat, thereby releasing heat to the surrounding air to increase the temperature of the surrounding air, so that the airflow flowing through the condenser 30 can re-enter the inner tank 1100 of the washing appliance 1000 to achieve the effect of drying tableware and other items.

[0050] The condenser 30 is roughly flat. The condenser 30 can be placed vertically, or in other words, the length of the condenser 30 is roughly horizontal, and the length of the condenser 30 is roughly parallel to the airflow direction X of the ventilation duct 11, so as to increase the contact area between the airflow in the ventilation duct 11 and the condenser 30, which is beneficial to improving the heating effect of the air flowing through the condenser 30.

[0051] The evaporator 20 and condenser 30 can be separate structures or formed into a modular structure through the end plate 23, which is beneficial to improving the manufacturing efficiency and installation efficiency of the evaporator 20 and condenser 30.

[0052] The bypass duct 12 is part of the ventilation duct 11. It can be formed between the evaporator 20 and the inner wall of the heat exchange shell 10, or it can be formed between the condenser 30 and the inner wall of the heat exchange shell 10.

[0053] Please see Figure 5 In some embodiments, a bypass duct 12 is formed between the evaporator 20 and the inner wall of the heat exchange housing 10. The bypass duct 12 bypasses the evaporator 20 and connects the air inlet side and the air outlet side of the evaporator 20. The bypass duct 12 is configured to mix the airflow passing through the bypass duct 12 with the airflow passing through the evaporator 20 at the air outlet side of the evaporator 20.

[0054] The evaporator 20 includes evaporation fins 21 and evaporation heat exchange tubes 22. There can be multiple evaporation fins 21, which are arranged at intervals along the width direction Y of the evaporator 20, forming an evaporation channel between two adjacent evaporation fins 21. The evaporation heat exchange tubes 22 pass through the evaporation fins 21 along the width direction Y of the evaporator 20.

[0055] The bypass duct 12 can be formed between the two sides of the evaporator 20 along the height direction and the inner wall of the heat exchange shell 10, or it can be formed between the two sides of the evaporator 20 along the width direction and the inner wall of the heat exchange shell 10.

[0056] The air inlet side and air outlet side of the evaporator 20 are the two sides of the evaporator 20 along the airflow direction X of the ventilation duct 11. Furthermore, the air inlet side and air outlet side of the evaporator 20 are the two sides of the evaporation fins 21 along the airflow direction X of the ventilation duct 11.

[0057] Please see Figure 5 In some embodiments, a bypass duct 12 is formed between the upper side of the evaporator 20 and the inner wall of the heat exchange housing 10. Specifically, a bypass duct 12 is formed between the upper side of the evaporator 20 and the top wall of the heat exchange housing 10, so that airflow can bypass the evaporator 20 from above.

[0058] Combination Figure 6 In one embodiment, a bypass duct 12 is formed between the lower side of the evaporator 20 and the inner wall of the heat exchange housing 10. Specifically, the bypass duct 12 is formed between the lower side of the evaporator 20 and the bottom wall of the heat exchange housing 10, so that airflow can bypass the evaporator 20 from below.

[0059] In another embodiment, a bypass duct 12 is formed between the two sides of the evaporator 20 along the width direction and the side wall of the heat exchange shell 10.

[0060] Please see Figures 7-9 In some embodiments, the heat pump drying assembly 1110 further includes a partition plate 400 disposed between the inner wall of the evaporator 20 and the heat exchange housing 10, the partition plate 400 covering the evaporator 20, and a bypass duct 12 formed between the inner wall of the heat exchange housing 10 and the partition plate 400, the bypass duct 12 connecting the upstream of the evaporator 20 and the gap between the evaporator 20 and the condenser 30.

[0061] The thickness direction of the partition plate 400 is the same as the height direction of the evaporator 20. The bypass duct 12 can be a channel formed between the side of the partition plate 400 away from the evaporator 20 and the inner wall of the heat exchange shell 10. The partition plate 400 can separate the bypass duct 12 and the evaporation channel.

[0062] The gap between the evaporator 20 and the condenser 30 can be the air outlet side of the evaporator 20 and the air inlet side of the condenser 30. That is, part of the airflow enters the gap from the bypass air duct 12, and part of the airflow enters the gap through the evaporation channel and enters the condenser 30 after mixing in the gap.

[0063] Please see Figure 5 In some embodiments, the projected height of the evaporator 20 in the direction X perpendicular to the airflow direction of the ventilation duct 11 is equal to the projected height of the condenser 30 in the direction X perpendicular to the airflow direction of the ventilation duct 11, and the inner wall of the heat exchange shell 10 bulges away from the evaporator 20 to form a bypass airflow duct 12 with the partition plate 400.

[0064] The projection height of the evaporator 20 in the direction X perpendicular to the airflow duct 11 is equal to the projection height of the condenser 30 in the direction X perpendicular to the airflow duct 11. This means that the dimensions of the evaporator 20 and the condenser 30 are equal in the height direction, and the top of the evaporator 20 and the top of the condenser 30 are at the same height, and the bottom of the evaporator 20 and the bottom of the condenser 30 are at the same height.

[0065] Alternatively, the top wall of the heat exchange shell 10 corresponding to the evaporator 20 may be higher than the top wall of the heat exchange shell 10 corresponding to the condenser 30, and the bottom walls of the heat exchange shell 10 corresponding to the evaporator 20 and the heat exchange shell 10 corresponding to the condenser 30 may be at the same height. Or, the bottom wall of the heat exchange shell 10 corresponding to the evaporator 20 may be lower than the bottom wall of the heat exchange shell 10 corresponding to the condenser 30, and the top walls of the heat exchange shell 10 corresponding to the evaporator 20 and the heat exchange shell 10 corresponding to the condenser 30 may be at the same height. Or, the top wall of the heat exchange shell 10 corresponding to the evaporator 20 may be higher than the top wall of the heat exchange shell 10 corresponding to the condenser 30, and the bottom wall of the heat exchange shell 10 corresponding to the evaporator 20 may be lower than the bottom wall of the heat exchange shell 10 corresponding to the condenser 30.

[0066] Please see Figure 6 and Figure 7 In some embodiments, the projected height of the evaporator 20 in the direction X perpendicular to the airflow direction of the ventilation duct 11 is lower than the projected height of the condenser 30 in the direction X perpendicular to the airflow direction of the ventilation duct 11, and the partition plate 400 abuts against the evaporator 20 to form a bypass airflow duct 12.

[0067] The projection height of the evaporator 20 in the direction X perpendicular to the airflow direction of the ventilation duct 11 is lower than the projection height of the condenser 30 in the direction X perpendicular to the airflow direction of the ventilation duct 11, which means that the dimension of the evaporator 20 in the height direction is smaller than the dimension of the condenser 30 in the height direction.

[0068] The top of the evaporator 20 can be lower than the top of the condenser 30, and the bottom of the evaporator 20 and the bottom of the condenser 30 can be at the same height. Alternatively, the top of the evaporator 20 and the top of the condenser 30 can be at the same height, and the bottom of the evaporator 20 can be higher than the bottom of the condenser 30. Or, the top of the evaporator 20 can be lower than the top of the condenser 30, and the bottom of the evaporator 20 can be higher than the bottom of the condenser 30.

[0069] The edge of the partition plate 400 facing the condenser 30 can be further away from the condenser 30 than the edge of the evaporator 20 facing the condenser 30. This prevents the partition plate 400 from blocking the airflow in the bypass duct 12 from entering the gap between the evaporator 20 and the condenser 30, making the airflow smoother.

[0070] Please see Figures 7-9 In some embodiments, the partition plate 400 is provided with a first ventilation hole 410, which is located in the ventilation duct 11 upstream of the evaporator 20 and is used to guide the airflow entering the ventilation duct 11 to the air inlet side of the evaporator 20.

[0071] The first ventilation hole 410 penetrates the partition plate 400 along the thickness direction of the partition plate 400. There can be multiple first ventilation holes 410, which are arranged at intervals. This can play a role in obstructing the flow and reducing the flow speed of the airflow, so that the airflow can fully exchange heat when it flows through the evaporator 20, while blocking part of the airflow from entering the air inlet side of the evaporator 20.

[0072] Please see Figures 3-5 In some embodiments, the partition plate 400 abuts against the evaporator 20 and the condenser 30. The partition plate 400 is provided with a second ventilation hole 420. The second ventilation hole 420 and the first ventilation hole 410 are arranged at intervals along the airflow direction X of the ventilation duct 11. The second ventilation hole 420 is located above or below the gap between the evaporator 20 and the condenser 30. The second ventilation hole 420 connects the bypass air duct 12 and the gap between the evaporator 20 and the condenser 30.

[0073] In this way, some airflow enters the gap through the second ventilation hole 420 from the bypass duct 12, and some airflow enters the gap through the evaporation channel via the first ventilation hole 410, and then enters the condenser 30 after mixing in the gap.

[0074] The second ventilation hole 420 penetrates the partition plate 400 along the thickness direction of the partition plate 400. The second ventilation hole 420 and the first ventilation hole 410 are arranged at intervals along the flow direction X of the ventilation channel 11. That is, along the flow direction X of the ventilation channel 11, the second ventilation hole 420 is located downstream of the first ventilation hole 410. In other words, the first ventilation hole 410 is closer to the upstream end of the ventilation channel 11 than the second ventilation hole 420.

[0075] When the partition plate 400 is above the evaporator 20, the second vent 420 is above the gap; when the partition plate 400 is below the evaporator 20, the second vent 420 is below the gap, so that the airflow in the bypass duct 12 can pass through the second vent 420 into the gap between the evaporator 20 and the condenser 30.

[0076] The area of ​​the first vent 410 can be smaller than the area of ​​the second vent 420, which can reduce the speed at which airflow enters the evaporator 20 from the first vent 410, allowing some airflow to smoothly enter the condenser 30 from the second vent 420.

[0077] Please see Figures 3-5 In some embodiments, the partition plate 400 includes a first partition portion 430 and a second partition portion 440. The first partition portion 430 is located between the first vent 410 and the second vent 420 and abuts against the evaporator 20. The second partition portion 440 is located on the side of the second vent 420 away from the first vent 410 and abuts against the condenser 30.

[0078] The cross-sectional area of ​​the first partition 430 can be greater than or equal to the cross-sectional area of ​​the evaporator 20, so that the first partition 430 completely blocks the evaporator 20, reducing the airflow in the bypass duct 12 from entering the evaporator 20. The area of ​​the second vent 420 can be greater than the cross-sectional area of ​​the gap. The edge of the second vent 420 near the first partition 430 can be aligned with the edge of the evaporator 20. The cross-sectional area of ​​the second partition 440 can be smaller than the cross-sectional area of ​​the condenser 30, so that the second vent 420 corresponds to the gap and part of the condenser 30. The second partition 440 partially blocks the condenser 30, thus preventing the airflow in the bypass duct 12 from entering the evaporator 20 through the second vent 420. At the same time, the airflow in the bypass duct 12 can enter the gap through the second vent 420, and can also enter the condenser 30 through the second vent 420.

[0079] Please see Figures 3-5 In some embodiments, the heat exchange housing 10 includes a first housing 13 and a second housing 14 detachably connected to the first housing 13, the evaporator 20 and the condenser 30 are housed in the second housing 14, and a partition plate 400 is located between the inner walls of the evaporator 20 and the first housing 13.

[0080] The first shell 13 and the second shell 14 are detachably connected, facilitating the maintenance and replacement of the evaporator 20 and the condenser 30. The first shell 13 and the second shell 14 can be connected by fasteners or clips, and the first shell 13 and the second shell 14 are arranged in a vertical direction.

[0081] During assembly, the evaporator 20 and condenser 30 can be placed inside the second shell 14 first, then the partition plate 400 can be placed on the evaporator 20, and finally the first shell 13 can be placed on the second shell 14. Alternatively, the partition plate 400 can be fixed on the first shell 13 first, and then the first shell 13 can be placed on the second shell 14.

[0082] In one embodiment, the partition plate 400 is located between the inner walls of the evaporator 20 and the second shell 14.

[0083] Please see Figures 6-8 In some embodiments, the inner wall surface of the second shell 14 is provided with a support strip 19, and the partition plate 400 abuts against the end of the support strip 19. The support strip 19 can provide support for the partition plate 400, thereby improving the installation stability of the support strip 19.

[0084] Specifically, the support strip 19 can be integrally formed with the second shell 14. For example, the inner wall of the second shell 14 extends into the interior of the second shell 14 to form the support strip 19. There can be multiple support strips 19, and multiple support strips 19 can simultaneously provide support for the partition plate 400, making the support strip 19 more stable in the second shell 14.

[0085] Please see Figure 7 and Figure 10 In some embodiments, the second shell 14 has an air inlet zone 15, a heat exchange zone 16 and an air outlet zone 17 connected in sequence. The evaporator 20 and the condenser 30 are both disposed in the heat exchange zone 16. The partition plate 400 covers the air inlet zone 15 and extends to the heat exchange zone 16. The first ventilation hole 410 on the partition plate 400 is connected to the air inlet zone 15, and the second ventilation hole 420 on the partition plate 400 is connected to the heat exchange zone 16.

[0086] The air inlet zone 15, the heat exchange zone 16 and the air outlet zone 17 can be separated by a baffle 18. The air inlet zone 15 is connected to the upstream end of the ventilation duct 11 through the first ventilation hole 410, and the air outlet zone 17 is connected to the downstream end of the ventilation duct 11 through the second ventilation hole 420.

[0087] Please see Figure 2 In some embodiments, the air duct component 100 further includes an air inlet pipe 70 and an exhaust pipe 80, both of which are connected to the inner tank 1100 and the heat exchange shell 10 of the washing appliance 1000.

[0088] The air inlet pipe 70 can guide the airflow in the inner liner 1100 into the heat exchange shell 10, and the exhaust pipe 80 can guide the airflow after passing through the evaporator 20 and the condenser 30 into the inner liner 1100. The air inlet pipe 70, the heat exchange shell 10 and the exhaust pipe 80 together form the air duct component 100, so as to realize the airflow circulating between the heat exchange shell 10 and the inner liner 1100.

[0089] Both the intake pipe 70 and the exhaust pipe 80 can be flat pipes, which facilitates their close fit to the outer wall of the inner liner 1100. In some embodiments, the intake pipe 70 can be connected to the top wall of the inner liner 1100, while the exhaust pipe 80 is connected to the side wall of the inner liner 1100.

[0090] The intake pipe 70 and the heat exchange housing 10 can be an integrally formed structure or a separate, detachable structure. Similarly, the exhaust pipe 80 and the heat exchange housing 10 can be an integrally formed structure or a separate, detachable structure.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat pump drying assembly for use in washing appliances, characterized in that, The heat pump drying assembly includes: A duct component, the duct component including a heat exchange housing configured to communicate with the inner tank of the washing appliance, the heat exchange housing forming a ventilation duct; A heat pump system comprising a compressor, a condenser, a throttling device, and an evaporator forming a closed refrigerant circuit, wherein the evaporator and the condenser are spaced apart in the heat exchange housing, the evaporator being used to cool the airflow flowing out of the inner liner, and the condenser being used to heat the airflow flowing into the inner liner; In this embodiment, a bypass duct is formed between one of the heat exchangers in the evaporator and the condenser and the inner wall of the heat exchange shell. The bypass duct bypasses the heat exchanger and connects the air inlet side and air outlet side of the heat exchanger.

2. The heat pump drying assembly of claim 1, wherein, The bypass duct is formed between the evaporator and the inner wall of the heat exchange shell. The bypass duct bypasses the evaporator and connects the air inlet side and air outlet side of the evaporator. The bypass duct is configured to mix the airflow passing through the bypass duct with the airflow passing through the evaporator at the air outlet side of the evaporator.

3. The heat pump drying assembly of claim 2, wherein, The bypass duct is formed between the upper side of the evaporator and the inner wall of the heat exchange shell.

4. The heat pump drying assembly of claim 2, wherein, The heat pump drying assembly further includes a partition plate disposed between the inner wall of the evaporator and the heat exchange shell, the partition plate covering the evaporator, and a bypass duct forming between the inner wall of the heat exchange shell and the partition plate, the bypass duct connecting the upstream of the evaporator and the gap between the evaporator and the condenser.

5. The heat pump drying assembly of claim 4, wherein, The projected height of the evaporator perpendicular to the airflow direction of the ventilation duct is equal to the projected height of the condenser perpendicular to the airflow direction of the ventilation duct. The inner wall of the heat exchange shell bulges away from the evaporator to form the bypass airflow duct with the partition plate.

6. The heat pump drying assembly of claim 4, wherein, The projected height of the evaporator perpendicular to the airflow direction of the ventilation duct is lower than the projected height of the condenser perpendicular to the airflow direction of the ventilation duct. The partition plate abuts against the evaporator to form the bypass airflow duct.

7. Heat pump drying assembly according to any of the claims 4-6, characterized in that, The partition plate is provided with a first ventilation hole, which is located in the ventilation duct upstream of the evaporator and is used to guide the airflow entering the ventilation duct to the air inlet side of the evaporator.

8. The heat pump drying assembly of claim 7, wherein, The partition plate abuts against the evaporator and the condenser. The partition plate is provided with a second ventilation hole. The second ventilation hole and the first ventilation hole are arranged at intervals along the airflow direction of the ventilation duct. The second ventilation hole is located above or below the gap between the evaporator and the condenser. The second ventilation hole connects the bypass duct and the gap between the evaporator and the condenser.

9. The heat pump drying assembly of claim 8, wherein, The partition plate includes a first partition and a second partition. The first partition is located between the second vent and the first vent, and abuts against the evaporator. The second partition is located on the side of the second vent away from the first vent, and abuts against the condenser.

10. The heat pump drying assembly of claim 4, wherein, The heat exchange housing includes a first housing and a second housing detachably connected to the first housing. The evaporator and the condenser are housed within the second housing, and the partition plate is located between the inner walls of the evaporator and the first housing.

11. The heat pump drying assembly according to claim 10, characterized in that, The inner wall of the second shell is provided with a support strip, and the partition plate abuts against the end of the support strip.

12. The heat pump drying assembly of claim 10, wherein, The second shell has an air inlet zone, a heat exchange zone, and an air outlet zone connected in sequence. The evaporator and the condenser are both located in the heat exchange zone. The partition plate covers the air inlet zone and extends to the heat exchange zone. The first ventilation hole on the partition plate is connected to the air inlet zone, and the second ventilation hole on the partition plate is connected to the heat exchange zone.

13. The heat pump drying assembly of claim 1, wherein, The air duct component also includes an air inlet pipe and an exhaust pipe, both of which are connected to the inner tank of the washing appliance and the heat exchange shell.

14. A washing appliance characterised in that, include: Inner liner; and The heat pump drying assembly according to any one of claims 1-13, wherein the air duct component is in communication with the inner liner.

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