Heat pump system and washing electric appliance

Abstract

The utility model relates to a heat pump system and a washing electric appliance. The heat pump system comprises a heat exchange shell, a heat exchanger, a connecting piece and a sealing piece, the heat exchanger is arranged in the heat exchange shell, the heat exchange shell is provided with an assembly through hole, the sealing piece is assembled at the assembly through hole, the sealing piece comprises a sealing body and a sealing part, the sealing body is provided with a first through hole, and the sealing part is arranged in the first through hole; the sealing part is provided with a second through hole, the hole wall of the first through hole and the hole wall of the second through hole are spaced, the connecting piece penetrates through the second through hole and is connected with the heat exchanger, and the connecting piece is connected with the sealing part in a sealed mode. In the heat pump system, the sealing piece can be clamped at the assembly through hole of the heat exchange shell through the sealing body, and the connecting piece can penetrate through the second through hole to extend into the heat exchange shell, so that the sealing body and the heat exchange shell are in sealed connection, the connecting piece and the sealing part are in sealed connection, and the sealing performance of the connecting piece and the assembly through hole is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and in particular to a heat pump system and a washing appliance. Background Technology

[0002] Currently, heat pump technology is used in many categories of home appliances. Some heat pump products, such as washing machines, dryers, and dishwashers, have heat exchange chamber components. When the refrigerant pipes are led out from the heat exchange chamber, it is necessary to maintain the seal at the inlet and outlet of the refrigerant pipes. Therefore, it is necessary to provide a sealing solution to ensure the sealing of the openings. Utility Model Content

[0003] This utility model provides a heat pump system and a washing appliance to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a heat pump system, including a heat exchange shell, a heat exchanger, a connector, and a seal. The heat exchanger is disposed within the heat exchange shell, which has an assembly through hole. The seal is assembled into the assembly through hole and includes a sealing body and a sealing portion. The sealing body has a first through hole, and the sealing portion is disposed within the first through hole and extends axially from one end of the first through hole to the other end. The sealing portion has a second through hole, with the wall of the first through hole spaced apart from the wall of the second through hole. The connector passes through the second through hole and is connected to the heat exchanger, and the connector is sealed to the sealing portion.

[0005] In the aforementioned heat pump system, the seal can be secured to the assembly through-hole of the heat exchange shell by the sealing body, and the connector can extend into the heat exchange shell through the second through-hole, thereby forming a sealed connection between the sealing body and the heat exchange shell, and a sealed connection between the connector and the sealing part, thus ensuring the sealing performance between the connector and the assembly through-hole.

[0006] In some embodiments, the second through hole includes a first end and a second end in the axial direction, the opening diameter of the first end is larger than the opening diameter of the second end, and the opening diameter of the second end is adapted to the outer diameter of the connector so that the opening of the second end fits tightly with the connector.

[0007] In some embodiments, an annular groove is provided on the circumferential outer surface of the sealing body, and the outer diameter of the sealing body in the groove is adapted to the diameter of the assembly through hole so that the sealing body is tightly fitted to the heat exchange shell.

[0008] In some embodiments, there are multiple connectors, and multiple first through holes are provided corresponding to the connectors, with the multiple first through holes distributed at intervals on the sealing body.

[0009] In some embodiments, at least two of the connectors have different outer diameters, and the sealing portion is configured in multiple ways corresponding to the first through hole. Each sealing portion is provided with a second through hole, and the diameter of the multiple second through holes is adapted to the outer diameter of the connector to which they are connected.

[0010] In some embodiments, the assembly through holes are configured in multiple ways corresponding to the connectors, and each assembly through hole is fitted with a sealing element, the sealing element having at least one of the first through holes.

[0011] In some embodiments, the assembly through hole is configured as one corresponding to the connector, a single sealing element is assembled on the assembly through hole, the sealing element is provided with a plurality of first through holes, and the sealing part is provided in each first through hole.

[0012] In some embodiments, the seal is a one-piece molded structure.

[0013] In some embodiments, the connector includes a refrigerant pipe comprising a first pipe and a second pipe, wherein at least a portion of the first pipe located outside the heat exchange housing and at least a portion of the second pipe located outside the heat exchange housing have an overlapping area in the projection of the second pipe in the height direction of the heat pump system.

[0014] In some embodiments, the first tube includes a third tube and a fourth tube, and the second tube includes a fifth tube and a sixth tube. At least a portion of the third tube, at least a portion of the fourth tube, at least a portion of the fifth tube, and at least a portion of the sixth tube are arranged in descending order of height outside the heat exchange housing.

[0015] In some embodiments, the portion of the refrigerant pipe located outside the heat exchange housing is fitted with an insulation layer.

[0016] In some embodiments, the connector includes a refrigerant pipe, the heat pump system further includes a compressor and a throttling device, the heat exchanger includes an evaporator and a condenser, and the compressor, the condenser, the throttling device and the evaporator are connected to form a closed refrigerant circuit.

[0017] One embodiment of the present invention provides a washing appliance that includes the heat pump system described in any of the above embodiments.

[0018] Additional aspects and advantages of the embodiments of this invention 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 the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the sealing element according to an embodiment of the present utility model;

[0021] Figure 2 This is a side view of the sealing element according to an embodiment of the present utility model;

[0022] Figure 2a This is a cross-sectional schematic diagram of the sealing element according to an embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of a portion of the structure of the heat pump system according to an embodiment of the present invention;

[0024] Figure 4 for Figure 3 An enlarged view of part A of the heat pump system;

[0025] Figure 5 This is another structural schematic diagram of the sealing element according to an embodiment of the present utility model;

[0026] Figure 6 This is another side view of the sealing element according to an embodiment of the present utility model;

[0027] Figure 7 This is a cross-sectional schematic diagram of the sealing element according to an embodiment of the present utility model;

[0028] Figure 8 This is another cross-sectional schematic diagram of a portion of the structure of the heat pump system according to an embodiment of the present invention;

[0029] Figure 9 for Figure 8 An enlarged view of Part B of the heat pump system;

[0030] Figure 10 This is a schematic diagram of the structure of the heat pump system according to an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram showing the connection between the connector and the heat exchanger in an embodiment of this utility model;

[0032] Figure 12 This is a side view of the heat pump system according to an embodiment of the present invention;

[0033] Figure 13 This is another schematic diagram showing the connection between the connector and the heat exchanger in an embodiment of this utility model.

[0034] Explanation of key component reference numerals:

[0035] Heat pump system 2000, heat exchange shell 100, heat exchanger 200, connector 300, seal 400, compressor 600, throttling device 700, assembly through hole 101, evaporator 201, condenser 202, refrigerant pipe 301, sealing body 401, sealing part 402, connecting ring 403, first pipe 3011, second pipe 3012, first through hole 4011, slot 4012, slit 4013, second through hole 4021, third pipe 3011a, fourth pipe 3011b, fifth pipe 3012a, sixth pipe 3012b, first flange 4012a, second flange 4012b, first end 4021a, second end 4021b. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of the 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 utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, 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 the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly 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 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 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.

[0040] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the scope of the invention. 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, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0041] Please see Figures 1 to 9 This utility model provides a heat pump system 2000, which includes a heat exchange housing 100, a heat exchanger 200, a connector 300, and a seal 400. The heat exchanger 200 is disposed inside the heat exchange housing 100, which has an assembly through hole 101. The seal 400 is assembled at the assembly through hole 101 and includes a sealing body 401 and a sealing part 402. The sealing body 401 has a first through hole 4011, and the sealing part 402 is disposed inside the first through hole 4011 and extends from one axial end of the first through hole 4011 to the other end. The sealing part 402 has a second through hole 4021, with the wall of the first through hole 4011 and the wall of the second through hole 4021 spaced apart. The connector 300 passes through the second through hole 4021 and is connected to the heat exchanger 200. The connector 300 is sealed to the sealing part 402.

[0042] In the aforementioned heat pump system 2000, the seal 400 can be secured to the assembly through hole 101 of the heat exchange housing 100 by the sealing body 401, and the connector 300 can extend into the heat exchange housing 100 through the second through hole 4021, thereby forming a sealed connection between the sealing body 401 and the heat exchange housing 100, and a sealed connection between the connector 300 and the sealing part 402, thus ensuring the sealing performance between the connector 300 and the assembly through hole 101.

[0043] Specifically, the heat pump system 2000 can be used in washing appliances. Washing appliances are electrical devices used to clean, disinfect, or dry items. Optionally, the washing appliance can be a heat pump dishwasher. The washing appliance may include an inner tank and a heat pump system 2000. The inner tank holds the items to be processed, and the heat pump system 2000 provides a high-efficiency heat source to the inner tank, thereby achieving temperature control and drying of the items inside. The heat pump system 2000 may include a heat exchanger 200 and a fan. Based on the reverse Carnot cycle, the air inside the inner tank first undergoes heat exchange through the heat exchanger 200 to form high-temperature, dry air, which is then driven by the fan into the inner tank to dry the items inside. The humid, hot air formed after drying inside the inner tank can re-enter the heat pump system 2000 for heat exchange circulation. Through continuous circulation, air flows between the inner tank and the heat pump system 2000, thereby achieving efficient drying of the items.

[0044] Currently, heat pump technology is used in many categories of home appliances. In certain heat pump products, such as washing machines, dryers, and dishwashers, the heat pump system 2000 has a heat exchange chamber component. When the refrigerant pipe 301 is led out from the heat exchange chamber, it is necessary to maintain the seal at the inlet and outlet of the refrigerant pipe 301. Therefore, it is necessary to provide a sealing solution to ensure the seal of the opening.

[0045] In this embodiment of the invention, the heat pump system 2000 includes a seal 400, which is fitted into the mounting through hole 101 of the heat exchange housing 100. The seal 400 includes a sealing body 401 and a sealing part 402. The sealing body 401 can be engaged with the mounting through hole 101 of the heat exchange housing 100. The sealing body 401 has a first through hole 4011, the sealing part 402 is disposed in the first through hole 4011, and the sealing part 402 has a second through hole 4021. The connector 300 can pass through the second through hole 4021 and connect to the heat exchanger 200.

[0046] Understandably, the seal 400 can seal the gap between the assembly through hole 101 and the connector 300, thereby preventing air in the heat exchange housing 100 from escaping from the gap between the connector 300 and the assembly through hole 101 to a certain extent.

[0047] It should be noted that the sealing part 402 is located inside the first through hole 4011, and the hole wall of the first through hole 4011 is spaced apart from the hole wall of the second through hole 4021. On the one hand, this can prevent the sealing part 402 from being directly exposed to the external environment to a certain extent, thereby extending the service life of the seal 400. On the other hand, it allows the sealing part 402 to move within the first through hole 4011. When the connector 300 passes through the second through hole 4021, there may be a positional deviation due to manufacturing or assembly errors. The movable sealing part 402 can accommodate the positional deviation, thereby improving assembly efficiency, reducing assembly difficulty, and alleviating the problem of uneven force and stress concentration caused by assembly errors.

[0048] Optionally, in Figure 1 In one embodiment, the seal 400 is provided with a slit 4013, which extends from the side wall of the seal body 401 to the second through hole 4021. The slit 4013 is used to allow the connector 300 to be pressed into the second through hole 4021 from the side wall of the seal body 401, thereby facilitating the connector 300 to pass through the second through hole 4021 and connect to the heat exchanger 200.

[0049] Optionally, in one embodiment, the connector 300 includes a refrigerant pipe 301 in which refrigerant can circulate. The refrigerant is a medium that can exchange heat with air within the heat exchange housing 100 via the heat exchanger 200.

[0050] Optionally, the shapes of the first through hole 4011 and the second through hole 4021 include, but are not limited to, circular holes, square holes, and irregularly shaped holes.

[0051] Optionally, please combine Figure 1 , Figure 5 and Figure 7 The sealing part 402 is truncated cone-shaped.

[0052] Optionally, please combine Figure 7 The sealing element 400 includes a connecting ring 403, and the sealing part 402 is connected to the sealing body 401 through the connecting ring 403.

[0053] In some implementations, please refer to Figure 1 , Figure 2a and Figure 7 The second through hole 4021 includes an axial first end 4021a and a second end 4021b. The opening diameter of the first end 4021a is larger than the opening diameter of the second end 4021b. The opening diameter of the second end 4021b is adapted to the outer diameter of the connector 300 so that the opening of the second end 4021b is tightly fitted with the connector 300.

[0054] The above embodiments improve assembly efficiency, reduce assembly difficulty, alleviate uneven force and stress concentration caused by assembly errors, and achieve a tight fit between the connector 300 and the sealing part 402, thereby preventing gas in the heat exchange shell 100 from escaping through the gap between the connector 300 and the sealing part 402 to a certain extent, thus improving sealing reliability.

[0055] Specifically, when the seal 400 is assembled at the mounting through hole 101, the second end 4021b is located outside the heat exchange housing 100, and the first end 4021a is located inside the heat exchange housing 100. In one embodiment, the connector 300 passes through the second through hole 4021 from the second end 4021b in a direction toward the first end 4021a.

[0056] It is understandable that the opening diameter D1 of the first end 4021a is larger than the opening diameter D2 of the second end 4021b, so that the connector 300 can move within the second through hole 4021. When the connector 300 passes through the second through hole 4021, it can improve assembly efficiency, reduce assembly difficulty, and alleviate the problem of uneven force and stress concentration caused by assembly errors.

[0057] The opening diameter D2 of the second end 4021b is adapted to the outer diameter of the connector 300 so that the opening of the second end 4021b fits tightly with the connector 300, thereby preventing air in the heat exchange housing 100 from escaping from the gap between the connector 300 and the sealing part 402 to a certain extent.

[0058] It is understandable that the opening diameter of the first end 4021a is larger than the opening diameter of the second end 4021b, that is, the sealing part 402 can be tapered from the first end 4021a to the second end 4021b.

[0059] In some implementations, please refer to Figure 2 , Figure 2a , Figure 6 and Figure 7 The sealing body 401 has an annular groove 4012 on its outer circumferential surface. The outer diameter of the sealing body 401 in the groove 4012 is adapted to the diameter of the mounting through hole 101 so that the sealing body 401 is tightly fitted with the heat exchange shell 100.

[0060] In the above embodiment, a groove 4012 is provided on the outer side of the sealing body 401. The outer diameter of the groove 4012 is adapted to the diameter of the assembly through hole 101, so that the sealing body 401 can be firmly locked in the assembly through hole 101, thereby improving the reliability of the sealing element 400 in the assembly through hole 101. At the same time, it avoids the sealing element 400 from shifting under pressure to a certain extent, thereby improving the long-term stability of the sealing element 400.

[0061] Specifically, the sealing body 401 has an annular groove 4012 on its circumferential outer surface. Correspondingly, the mounting through hole 101 is annular, and the shell wall at the mounting through hole 101 can be inserted into the groove 4012. The outer diameter D3 of the sealing body 401 in the groove 4012 is adapted to the diameter of the mounting through hole 101.

[0062] The sealing body 401 may include a first protruding edge 4012a and a second protruding edge 4012b, and a groove 4012 formed by the first protruding edge 4012a and the second protruding edge 4012b. The width W of the groove 4012 is adapted to the shell wall thickness at the mounting through hole 101, so that the inner surfaces of the first protruding edge 4012a and the second protruding edge 4012b can be in close contact with the shell wall at the mounting through hole 101. The second protruding edge 4012b and the second protruding edge 4012b respectively abut against the shell wall at the mounting through hole 101, thereby limiting the relative position between the sealing element 400 and the heat exchange shell 100. It is understood that the outer diameter D4 of the first protruding edge 4012a and the outer diameter D5 of the second protruding edge 4012b are both larger than the diameter of the mounting through hole 101, so that the first protruding edge 4012a and the second protruding edge 4012b abut against the shell wall at the mounting through hole 101. Optionally, the outer diameters D4 and D5 of the sealing body 401 at the first protrusion 4012a and the second protrusion 4012b may be equal or unequal.

[0063] In some implementations, please refer to Figure 1 There are multiple connectors 300, and multiple first through holes 4011 are provided for each connector 300. The multiple first through holes 4011 are distributed at intervals on the sealing body 401.

[0064] In the above embodiments, multiple first through holes 4011 are spaced apart on the sealing body 401, which can reduce the risk of deformation of the seal 400.

[0065] Optionally, in one embodiment, the heat pump system 2000 includes a plurality of connectors 300 and a seal 400. The seal 400 includes a plurality of first through holes 4011, the number of which is equal to the number of connectors 300. The heat exchange housing 100 is provided with an assembly through hole 101, and each first through hole 4011 is provided with a sealing part 402. The plurality of connectors 300 can pass through the second through holes 4021 of the plurality of sealing parts 402 to connect to the heat exchanger 200.

[0066] In one embodiment, the heat pump system 2000 includes a plurality of connectors 300 and a plurality of seals 400. Each seal 400 includes a plurality of first through holes 4011, the number of which is equal to the number of connectors 300. The heat exchange housing 100 is provided with a plurality of mounting through holes 101. The number of seals 400 may be less than or equal to the number of connectors 300, and the number of mounting through holes 101 is equal to the number of seals 400. When the number of seals 400 is equal to the number of connectors 300, each seal 400 includes one first through hole 4011 and one second through hole 4021. When the number of seals 400 is less than the number of connectors 300, at least one seal 400 includes at least two first through holes 4011 and at least two second through holes 4021.

[0067] It is understandable that the multiple first through holes 4011 are distributed at intervals, so that multiple connectors 300 are connected to the heat exchanger 200 by passing through the second through holes 4021 at intervals. This can, to a certain extent, avoid the deformation or sealing failure of the seal 400 due to excessive local pressure caused by the concentrated distribution of the first through holes 4011.

[0068] Optionally, a plurality of first through holes 4011 are spaced apart along the length of the sealing body 401.

[0069] In some implementations, please refer to Figure 1 At least two connectors 300 have different outer diameters. The sealing part 402 is configured with multiple first through holes 4011. Each sealing part 402 is provided with a second through hole 4021. The diameter of the multiple second through holes 4021 is adapted to the outer diameter of the connector 300 to be connected.

[0070] In the above embodiments, the diameters of the plurality of second through holes 4021 are respectively adapted to the outer diameter of the connected connector 300, so that connectors 300 of different sizes can achieve a stable and reliable sealing connection with the sealing part 402, thereby improving the sealing effect of the heat pump system 2000 with various connectors 300.

[0071] Specifically, the heat pump system 2000 includes multiple connectors 300, and at least two connectors 300 have unequal outer diameters. That is, a connector 300 may include at least one first connector and at least one second connector. The outer diameter of the first connector is smaller than that of the second connector. In other words, the diameter of the first through hole 4011 corresponding to the first connector is smaller than the diameter of the second through hole 4021 corresponding to the second connector. For example, in one embodiment, the heat pump system 2000 includes a throttling device and a compressor. The heat exchanger 200 includes an evaporator 201. The evaporator 201 is connected to the throttling device and the compressor through the first connector and the second connector, respectively. The first connector and the second connector include a refrigerant pipe 301. The outer diameter of the refrigerant pipe 301 between the throttling device and the evaporator 201 is smaller than that between the compressor and the evaporator 201.

[0072] The first through hole 4011 is provided with multiple corresponding to multiple connectors 300. Each first through hole 4011 is provided with a sealing part 402. Each sealing part 402 is provided with a second through hole 4021. The diameter of the multiple second through holes 4021 is adapted to the outer diameter of the corresponding connector 300.

[0073] In one embodiment, the second through hole 4021 includes a first end 4021a and a second end 4021b, the opening diameters of the first end 4021a and the second end 4021b are both adapted to the outer diameter of the connector 300 so that the openings of the first end 4021a and the second end 4021b are tightly fitted with the connector 300.

[0074] In one embodiment, the second through hole 4021 includes a first end 4021a and a second end 4021b. The opening diameter of the first end 4021a is larger than the opening diameter of the second end 4021b. The opening diameter of the second end 4021b is adapted to the outer diameter of the connector 300 so that the opening of the second end 4021b is tightly fitted with the connector 300.

[0075] In some implementations, please refer to Figures 5 to 9 The assembly through hole 101 is provided with multiple corresponding connectors 300, and each assembly through hole 101 is equipped with a seal 400. The seal 400 is provided with at least one first through hole 4011.

[0076] In the above embodiments, the sealing member 400 is provided with at least one first through hole 4011, which can be adapted to different application scenarios.

[0077] Specifically, in one embodiment, the seal 400 is provided with a first through hole 4011, that is, the number of connectors 300, seals 400, first through holes 4011 and assembly through holes 101 are equal. Each first through hole 4011 is provided with a sealing part 402, and multiple connectors 300 can be connected to the heat exchanger 200 through the second through holes 4021 of multiple sealing parts 402.

[0078] It is understandable that each assembly through hole 101 is provided with a seal 400, so that each seal 400 seals the corresponding connector 300. When one of the seals 400 is damaged, the corresponding seal 400 can be replaced instead of replacing all the seals 400, which reduces maintenance costs and improves maintenance efficiency.

[0079] In one embodiment, the seal 400 is provided with a plurality of first through holes 4011, that is, the number of connectors 300 and the number of first through holes 4011 are equal, and the number of seals 400 and the number of assembly through holes 101 are equal, and the number of seals 400 and the number of assembly through holes 101 are less than the number of connectors 300 and the number of first through holes 4011. Each first through hole 4011 is provided with a sealing part 402, and the plurality of connectors 300 can be connected to the heat exchanger 200 through the second through holes 4021 of the plurality of sealing parts 402.

[0080] It is understood that, in this embodiment of the present invention, the heat pump system 2000 may include a seal 400 having a single first through hole 4011 and a seal 400 having a plurality of first through holes 4011.

[0081] In some implementations, please refer to Figures 1 to 4 The assembly through hole 101 is configured to correspond to one connecting piece 300. A single sealing piece 400 is assembled on the assembly through hole 101. The sealing piece 400 is provided with multiple first through holes 4011, and each first through hole 4011 is provided with a sealing part 402.

[0082] In the above embodiments, the number of seals 400 can be reduced, the structure of the heat pump system 2000 can be simplified, and assembly steps can be reduced.

[0083] Specifically, the heat pump system 2000 includes multiple connectors 300 and a seal 400. The seal 400 includes multiple first through holes 4011, the number of which is equal to the number of connectors 300. The heat exchange housing 100 is provided with an assembly through hole 101. Each first through hole 4011 is provided with a sealing part 402. The multiple connectors 300 can pass through the second through holes 4021 of the multiple sealing parts 402 to connect to the heat exchanger 200.

[0084] It is understood that a seal 400 may include multiple second through holes 4021, and multiple connectors 300 may pass through multiple second through holes 4021 to connect to the heat exchanger 200. That is, multiple connectors 300 share a seal 400, which helps to reduce the number of seals 400, simplify the structure of the heat pump system 2000, and reduce assembly steps.

[0085] In some implementations, please refer to Figure 1 and Figure 5 The sealing element 400 is a one-piece molded structure.

[0086] In the above embodiments, the sealing performance and structural stability of the seal 400 can be improved.

[0087] Specifically, in one embodiment, a seal 400 includes a sealing portion 402. In another embodiment, a seal 400 includes at least two sealing portions 402.

[0088] The seal 400 can be integrally molded by injection molding, compression molding, extrusion, etc., avoiding assembly errors and poor sealing problems caused by splicing multiple parts, thereby improving the overall sealing performance and structural stability of the seal 400 and reducing the risk of sealing failure due to aging, loosening or displacement of the connection during long-term use.

[0089] In some implementations, please refer to Figures 11 to 13 The connector 300 includes a refrigerant pipe 301, which includes a first pipe 3011 and a second pipe 3012. At least a portion of the first pipe 3011 located outside the heat exchange housing 100 and at least a portion of the second pipe 3012 located outside the heat exchange housing 100 have an overlapping area in the projection of the second pipe 3012 in the height direction of the heat pump system 2000.

[0090] The above embodiments can save space occupied by the heat pump system 2000 and contribute to the overall compactness of the heat pump system 2000.

[0091] Specifically, the outer portions of the heat exchange shell 100 of the first pipe 3011 and the second pipe 3012 are respectively the first heat exchange pipe section and the second heat exchange pipe section. The projections of the first heat exchange pipe section and the second heat exchange pipe section in the height direction of the heat pump system 2000 at least partially overlap, that is, they have an overlapping arrangement area in the vertical direction. By forming a projection overlap in the height direction, the space occupied by the heat pump system 2000 in the horizontal plane can be saved, which helps to improve the overall structural compactness of the heat pump system 2000. The first pipe 3011 is the refrigerant pipe 301 connected to the evaporator 201. The second pipe 3012 is the refrigerant pipe 301 connected to the condenser 202.

[0092] In one embodiment, the heat exchanger 200 includes an evaporator 201 and a condenser 202. A first pipe 3011 includes a refrigerant pipe 301 between the throttling device 700 and the evaporator 201, and a refrigerant pipe 301 between the compressor 600 and the evaporator 201. A second pipe 3012 includes a refrigerant pipe 301 between the throttling device 700 and the condenser 202, and a refrigerant pipe 301 between the compressor 600 and the condenser 202.

[0093] In one embodiment, the heat exchanger 200 includes an evaporator 201 and an electric heater, and the connector 300 includes a wire. The wire passes through a second through-hole 4021 and is electrically connected to the electric heater. One end of the wire outside the heat exchange housing 100 can be electrically connected to a power source. The power source supplies power to the electric heater, enabling it to heat the air dehumidified by the evaporator 201, thereby creating high-temperature, dry air to dry items inside the inner liner. It is understood that the opening diameter of the second through-hole 4021 is adapted to the outer diameter of the wire to ensure a sealed connection between the sealing portion 402 and the wire. The first pipe 3011 includes a third pipe 3011a and a fourth pipe 3011b, that is, a refrigerant pipe 301 between the compressor 600 and the evaporator 201, and a refrigerant pipe 301 between the throttling device 700 and the evaporator 201. At least a portion of the third pipe 3011a located outside the heat exchange housing 100 and at least a portion of the fourth pipe 3011b located outside the heat exchange housing 100 are arranged in descending order of height.

[0094] In some implementations, please refer to Figures 11 to 13 The first tube 3011 includes a third tube 3011a and a fourth tube 3011b, and the second tube 3012 includes a fifth tube 3012a and a sixth tube 3012b. The third tube 3011a, the fourth tube 3011b, the fifth tube 3012a, and the sixth tube 3012b are arranged in descending order of height from the third tube 3011a located outside the heat exchange shell 100 to the fourth tube 3011b located outside the heat exchange shell 100.

[0095] The above embodiments can save space occupied by the heat pump system 2000 and contribute to the overall compactness of the heat pump system 2000.

[0096] Specifically, the heat exchanger 200 includes an evaporator 201 and a condenser 202. The first pipe 3011 includes a third pipe 3011a and a fourth pipe 3011b. The third pipe 3011a is the refrigerant pipe 301 between the compressor 600 and the evaporator 201, and the fourth pipe 3011b is the refrigerant pipe 301 between the throttling device 700 and the evaporator 201. The fifth pipe 3012a is the refrigerant pipe 301 between the throttling device 700 and the condenser 202, and the sixth pipe 3012b is the refrigerant pipe 301 between the compressor 600 and the condenser 202.

[0097] The third tube 3011a, the fourth tube 3011b, the fifth tube 3012a, and the sixth tube 3012b are arranged in descending order of height outside the heat exchange shell 100. This arrangement can save space occupied by the heat pump system 2000 on the horizontal plane and contribute to the overall compactness of the heat pump system 2000.

[0098] In some embodiments, the portion of the refrigerant pipe 301 located outside the heat exchange housing 100 is fitted with an insulation layer.

[0099] In the above embodiments, the portion of the refrigerant pipe 301 located outside the heat exchange shell 100 is fitted with an insulation layer, which is beneficial to improving the overall heat exchange efficiency of the heat pump system 2000, while also improving the reliability and operational stability of the heat pump system 2000 and extending the service life of the heat pump system 2000.

[0100] Specifically, the insulation layer is located on the outer periphery of the refrigerant pipe 301 outside the heat exchange shell 100. It can be set by means of foaming, covering, wrapping or sleeve. The material of the insulation layer can be, but is not limited to, rubber and plastic materials, polyurethane foam, polyethylene foam and other materials with low thermal conductivity and strong temperature resistance.

[0101] The insulation layer can retain the heat energy of the refrigerant in the refrigerant pipe 301 to a certain extent, improving the energy efficiency of the heat pump system 2000, reducing the loss of cold or heat during refrigerant transfer, and enhancing the overall heat exchange efficiency of the heat pump system 2000. Furthermore, the insulation layer can also prevent condensation on the surface of the refrigerant pipe 301 due to the refrigerant temperature being lower than the ambient temperature, thus preventing condensate dripping from corroding other components or affecting the normal operation of the heat pump system 2000.

[0102] In some implementations, please refer to Figure 10The connector 300 includes a refrigerant pipe 301, the heat pump system 2000 also includes a compressor 600 and a throttling device 700, the heat exchanger 200 includes an evaporator 201 and a condenser 202, and the compressor 600, condenser 202, throttling device 700 and evaporator 201 are connected to form a closed refrigerant circuit.

[0103] In the above embodiment, the compressor 600, condenser 202, throttling device 700 and evaporator 201 constitute a closed refrigerant circuit, thereby enabling the refrigerant to circulate within the heat pump system 2000, thus ensuring the continuous and efficient operation of the dehumidification and heating processes to a certain extent.

[0104] Specifically, in one embodiment, the heat pump system 2000 includes a compressor 600 and a throttling device 700, the connector 300 includes a refrigerant pipe 301, the heat exchanger 200 includes an evaporator 201 and a condenser 202, and the compressor 600, condenser 202, throttling device 700 and evaporator 201 are connected in sequence to form a closed refrigerant circuit.

[0105] During the operation of the heat pump system 2000, air from the inner tank enters the heat exchange shell 100 and first exchanges heat with the low-temperature, low-pressure liquid refrigerant in the evaporator 201. This causes water vapor in the air to condense into liquid water and be discharged, thus dehumidifying the air. Then, the air passes through the condenser 202 and exchanges heat with the high-temperature, high-pressure refrigerant, raising the air temperature and creating high-temperature, dry air. This high-temperature, dry air enters the fan and, driven by the fan, returns to the inner tank to dry the items inside.

[0106] Low-temperature, low-pressure gaseous refrigerant is compressed into high-temperature, high-pressure gaseous refrigerant within the compressor. The refrigerant then enters the condenser 202 and condenses to form a high-temperature, high-pressure liquid refrigerant. The liquid refrigerant passes through a filter and a throttling device 700 to reduce its pressure and temperature, becoming a low-temperature, low-pressure liquid or gas-liquid mixture, which then flows into the evaporator 201 to evaporate and form a low-temperature, low-pressure gaseous refrigerant, preparing it for re-entry into the compressor, thus forming a cycle.

[0107] In an optional embodiment, the heat exchanger 200 further includes an electric heater, and the connector 300 includes a wire. The wire can pass through a second through-hole 4021 and be electrically connected to the electric heater. One end of the wire located outside the heat exchange housing 100 can be electrically connected to a power source. The power source can supply power to the electric heater so that the electric heater can heat the air dehumidified by the evaporator 201, thereby forming high-temperature dry air to facilitate drying of items in the inner liner. It is understood that the opening diameter of the second through-hole 4021 is adapted to the outer diameter of the wire so that the sealing part 402 and the wire are sealed together. Optionally, the electric heater includes a PTC heater (positive temperature coefficient heater).

[0108] One embodiment of the present invention is a washing appliance including the heat pump system 2000 of any of the above embodiments.

[0109] Specifically, a washing appliance is an electrical device used to clean, disinfect, or dry items. Optionally, the washing appliance can be a heat pump dishwasher. The washing appliance may include an inner tank and a heat pump system 2000. The inner tank holds the items to be processed, and the heat pump system 2000 provides a high-efficiency heat source to the inner tank, thereby achieving temperature control and drying of the items inside. The heat pump system 2000 may include a heat exchanger 200 and a fan. Based on the reverse Carnot cycle, the air inside the inner tank first undergoes heat exchange through the heat exchanger 200 to form high-temperature, dry air, which is then driven by the fan into the inner tank to dry the items inside. The humid, hot air formed after drying inside the inner tank can re-enter the heat pump system 2000 for heat exchange and circulation. Through continuous circulation, air flows between the inner tank and the heat pump system 2000, thereby achieving efficient drying of the items.

[0110] 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., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. 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.

[0111] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heat pump system, characterized in that, The device includes a heat exchange shell, a heat exchanger, a connector, and a seal. The heat exchanger is disposed within the heat exchange shell, which has an assembly through hole. The seal is assembled into the assembly through hole and includes a sealing body and a sealing portion. The sealing body has a first through hole, and the sealing portion is disposed within the first through hole and extends axially from one end of the first through hole to the other end. The sealing portion has a second through hole, with the wall of the first through hole spaced apart from the wall of the second through hole. The connector passes through the second through hole and is connected to the heat exchanger, and the connector is sealed to the sealing portion.

2. The heat pump system of claim 1, wherein, The second through hole includes a first end and a second end in the axial direction. The opening diameter of the first end is larger than the opening diameter of the second end. The opening diameter of the second end is adapted to the outer diameter of the connector so that the opening of the second end fits tightly with the connector.

3. The heat pump system of claim 1, wherein, The outer circumferential surface of the sealing body is provided with an annular groove, and the outer diameter of the sealing body in the groove is adapted to the diameter of the assembly through hole so that the sealing body is tightly fitted to the heat exchange shell.

4. The heat pump system of claim 1, wherein, There are multiple connectors, and the first through holes are configured in multiple ways corresponding to the connectors, with the multiple first through holes distributed at intervals on the sealing body.

5. The heat pump system of claim 4, wherein, At least two of the connectors have different outer diameters. The sealing part is configured in multiple ways corresponding to the first through hole. Each sealing part is provided with a second through hole. The diameter of the multiple second through holes is adapted to the outer diameter of the connector to which they are connected.

6. The heat pump system of claim 4, wherein, The assembly through holes are configured in multiple ways corresponding to the connectors, and each assembly through hole is equipped with a sealing element, and the sealing element is provided with at least one of the first through holes.

7. The heat pump system of claim 4, wherein, The assembly through hole is configured as one corresponding to the connector, and a single sealing element is assembled on the assembly through hole. The sealing element is provided with multiple first through holes, and the sealing part is provided in each first through hole.

8. The heat pump system according to any one of claims 1 to 7, characterized in that, The sealing element is a one-piece molded structure.

9. The heat pump system according to claim 1, characterized in that, The connector includes a refrigerant pipe, which includes a first pipe and a second pipe. At least a portion of the first pipe located outside the heat exchange housing and at least a portion of the second pipe located outside the heat exchange housing have an overlapping area in the projection of the second pipe in the height direction of the heat pump system.

10. The heat pump system of claim 9, wherein, The first tube includes a third tube and a fourth tube, and the second tube includes a fifth tube and a sixth tube. The third tube, the fourth tube, the fifth tube, and the sixth tube are arranged in descending order of height, with at least a portion of the third tube located outside the heat exchange shell being located outside the heat exchange shell.

11. The heat pump system according to claim 9 or 10, characterized in that, The portion of the refrigerant pipe located outside the heat exchange shell is fitted with an insulation layer.

12. The heat pump system of claim 1, wherein, The connector includes a refrigerant pipe, the heat pump system further includes a compressor and a throttling device, the heat exchanger includes an evaporator and a condenser, and the compressor, the condenser, the throttling device and the evaporator are connected to form a closed refrigerant circuit.

13. A washing appliance characterised in that, Includes the heat pump system according to any one of claims 1-12.

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