Washing appliance

By optimizing the placement of the evaporator and condenser in the washing appliance to combine the base and the main body, and utilizing the flow guide channel design, the problem of integrating the heat pump drying system with the inner tank is solved, resulting in a washing appliance with high integration and a compact structure, which improves drying efficiency and reduces manufacturing costs.

WO2026026172A1PCT designated stage Publication Date: 2026-02-05FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO LTD +1
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
PCT/CN2025/097210
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-31
Filing Date
2025-05-26
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

How to better integrate the components of the heat pump drying system with the inner tank to improve the integration and structural compactness of the washing appliance.

Method used

One of the evaporator and condenser is mounted on the base, and the other is mounted on the main body. This utilizes the installation space of the main body, saving the installation space of the base. Furthermore, the design of the flow channel and air duct components enables the circulation of gas and heat exchange.

Benefits of technology

It improves the integration of washing appliances, has a compact structure, achieves efficient drying effect, reduces condensate residue, and lowers manufacturing costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2025097210_05022026_PF_FP_ABST
    Figure CN2025097210_05022026_PF_FP_ABST
Patent Text Reader

Abstract

A washing machine (1000), comprising a base (1400), a main body (1500) and a heat pump drying system (1200). The main body (1500) is provided on the base (1400) and is provided with a washing chamber (1104); the heat pump drying system (1200) comprises an air duct component (100), and a compressor (60), a condenser (30), a throttling device (90), and an evaporator (20) which constitute a closed refrigerant circuit; ends of the air duct component (100) are in communication with the washing chamber (1104); the evaporator (20) and the condenser (30) are both arranged in the air duct component (100); the evaporator (20) is used for cooling air flowing out from the washing chamber (1104); the condenser (30) is used for heating air flowing into the washing chamber (1104); one of the evaporator (20) and the condenser (30) is arranged on the base (1400), and the other is arranged on the main body (1500).
Need to check novelty before this filing date? Find Prior Art

Description

Washing appliances

[0001] Priority information

[0002] This application claims priority and benefits to patent application No. 202421843724.8, filed with the China National Intellectual Property Administration on July 31, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of household appliance technology, and in particular to a washing appliance. Background Technology

[0004] In related technologies, washing appliances include an inner tank and a heat pump drying system, and these appliances have a drying mode for drying dishes. During the drying process, how to better integrate the components of the heat pump drying system with the inner tank is a technical problem that needs to be solved. Summary of the Invention

[0005] This application provides a washing appliance that at least solves the technical problem of how to better integrate the components of a heat pump drying system with the inner tank.

[0006] This application provides a washing appliance. The washing appliance according to an embodiment of this application includes a base, a main body, and a heat pump drying system. The main body is disposed on the base and forms a washing chamber. The heat pump drying system includes an air duct component, a compressor constituting a closed refrigerant circuit, a condenser, a throttling device, and an evaporator. The end of the air duct component is connected to the washing chamber. Both the evaporator and the condenser are disposed in the air duct component. The evaporator is used to cool the gas flowing out of the washing chamber, and the condenser is used to heat the gas flowing into the washing chamber. One of the evaporator and the condenser is disposed on the base, and the other is disposed on the main body.

[0007] In this way, one of the evaporator and condenser is set on the base, and the other is set on the main body. This makes full use of the installation space of the main body and saves the installation space of the base, resulting in a high degree of integration and a compact structure for the washing appliance.

[0008] In some embodiments, the main body includes an inner liner and a door, with one of the evaporator and the condenser disposed on the base and the other disposed on the inner liner or the door.

[0009] In some embodiments, the body includes an inner liner and an outer shell surrounding the inner liner, with one of the evaporator and the condenser disposed on the base and the other disposed between the inner liner and the outer shell.

[0010] In some embodiments, the air duct component forms a flow guide channel, both ends of which are connected to the washing chamber, and the evaporator and the condenser are disposed in the same flow guide channel.

[0011] In some embodiments, the evaporator is located upstream of the condenser along the flow direction of the flow channel, and the heat pump drying system is configured to first cool and dehumidify the air flowing out of the inner liner by the evaporator, and then heat it by the condenser before returning it to the inner liner.

[0012] In some embodiments, the flow channel includes an evaporator duct, in which the evaporator is disposed.

[0013] In some embodiments, the duct component is provided with a drain outlet located below the evaporator and communicating with the evaporator duct.

[0014] In some embodiments, the air duct component includes an air duct housing, an air inlet pipe, and an exhaust pipe, wherein the air inlet pipe and the exhaust pipe are both connected to the air duct housing, and the air duct housing, the air inlet pipe, and the exhaust pipe together form the airflow channel.

[0015] In some embodiments, the inner liner is provided with a first through hole and a second through hole, the air intake pipe is connected to the inner liner through the first through hole, and the exhaust pipe is connected to the inner liner through the second through hole.

[0016] In some embodiments, the evaporator is disposed on the side wall of the inner liner, and the condenser is disposed in the air duct housing.

[0017] In some embodiments, the duct housing is disposed on the base, and the evaporator is located above the condenser.

[0018] In some embodiments, the condenser includes a plurality of fins, with airflow channels formed between the plurality of fins.

[0019] In some embodiments, the airflow channel has the same guiding direction as the flow channel.

[0020] In some embodiments, the thickness direction of the fins is the same as the horizontal direction, and the height direction of the fins is perpendicular to the flow direction of the flow channel where the condenser is located.

[0021] In some embodiments, the evaporator, the intake pipe, and the exhaust pipe are all disposed on the inner liner.

[0022] In some embodiments, the evaporator is vertically mounted on the side wall of the inner liner.

[0023] In some embodiments, the height direction of the evaporator is the same as the flow direction of the flow channel in which the evaporator is located.

[0024] In some embodiments, the heat pump drying system includes a first fan and a second fan, which are used to generate airflow in the guide channel. The airflow flows out through the inner liner and passes through the evaporator and the condenser in sequence before re-entering the inner liner.

[0025] In some embodiments, the first fan is located between the first through-hole and the evaporator.

[0026] In some embodiments, the second fan is located downstream of the condenser.

[0027] In some embodiments, the evaporator, the condenser, the intake pipe, and the exhaust pipe are all located on the same side of the inner liner.

[0028] 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

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 is a schematic diagram of the structure of a washing appliance according to certain embodiments of this application;

[0031] Figure 2 is a schematic diagram of the structure of a heat pump drying system according to certain embodiments of this application;

[0032] Figure 3 is a schematic diagram of the structure of a washing appliance according to certain embodiments of this application;

[0033] Figure 4 is a top view of a washing appliance according to certain embodiments of this application;

[0034] Figure 5 is a schematic diagram of the structure of the fins in some embodiments of this application;

[0035] Figure 6 is a side view of a duct component according to certain embodiments of this application.

[0036] Explanation of reference numerals in the attached drawings: 1000-Washing appliance, 1100-Inner tank, 1101-Side wall, 1102-First through hole, 1103-Second through hole, 1104-Washing chamber, 1200-Heat pump drying system, 1300-Water cup, 1400-Base, 1500-Main body, 1600-Door, 1700-Outer shell, 100-Air duct component, 10-Air duct shell, 11-Guide channel, 12-Main body, 120-Top surface, 1201-Accommodation space, 13-Interface, 15-Drain outlet, 20-Evaporator, 201-Evaporator air duct, 21-Fins, 22-Airflow channel, 30-Condenser, 40-First fan, 41-Second fan, 60-Compressor, 61-Pipeline, 70-Inlet pipe, 80-Exhaust pipe, 90-Throttling device. Detailed Implementation

[0037] 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 the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0038] In the description of the embodiments 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the embodiments of 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 on the embodiments 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 the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" 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 for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0040] In embodiments of 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.

[0041] The following disclosure provides numerous different embodiments or examples for implementing various structures of the embodiments of this application. To simplify the disclosure of the embodiments of this application, 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. Reference numerals and / or reference letters may be repeated in different examples of the embodiments of this application; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Furthermore, the embodiments of this application provide examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0042] Please refer to Figures 1-4. The washing appliance 1000 of this application embodiment includes a base 1400, a main body 1500, and a heat pump drying system 1200. The main body 1500 is disposed on the base 1400 and forms a washing chamber 1104. The heat pump drying system 1200 includes an air duct component 100, a compressor 60 constituting a closed refrigerant circuit, a condenser 30, a throttling device 90, and an evaporator 20. The end of the air duct component 100 is connected to the washing chamber 1104. The evaporator 20 and the condenser 30 are both disposed in the air duct component 100. The evaporator 20 is used to cool the gas flowing out of the washing chamber 1104, and the condenser 30 is used to heat the gas flowing into the washing chamber 1104. One of the evaporator 20 and the condenser 30 is disposed on the base 1400, and the other is disposed on the main body 1500.

[0043] Thus, one of the evaporator 20 and the condenser 30 is set on the base 1400 and the other is set on the main body 1500. This makes full use of the installation space of the main body 1500 and saves the installation space of the base 1400, resulting in a high degree of integration and a compact structure for the washing appliance 1000.

[0044] Specifically, the washing appliance 1000 is mainly used for washing various types of tableware. The main body 1500 has a washing chamber 1104 with an opening, allowing tableware and other items to be placed into the washing chamber 1104. The washing chamber 1104 may be equipped with a bracket for supporting and securing the tableware, and a water cup 1300 placed below the bracket. 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.

[0045] The base 1400 is located below the main body 1500. The base 1400 is used to support the main body 1500, the heat pump drying system 1200 and the water cup 1300 and other components. The top surface of the base 1400 extends downward to form a receiving groove 1410, in which the main body 1500, the heat pump drying system 1200 and the water cup 1300 and other components are placed.

[0046] The heat pump drying system 1200 dries the humid, hot air flowing out of the washing chamber 1104 and heats the dried air so that the heated, dried air flows back into the washing chamber 1104. This cycle repeats, achieving the effect of drying tableware and other items. It should be noted that the dried air mentioned above is relative to the humid, hot air in the washing chamber 1104, and does not mean that the air contains no moisture at all.

[0047] Evaporator 20 is a heat exchanger in heat pump drying system 1200. When heat pump drying 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 gas flowing through evaporator 20 condenses to form condensate water, thus achieving the effect of drying the air.

[0048] The condenser 30 is also a heat exchanger in the heat pump drying system 1200. When the heat pump drying system 1200 is working, the condenser 30 can generate heat, thereby releasing heat to the air around the condenser 30 to raise the temperature of the surrounding air, so that the gas flowing through the condenser 30 can re-enter the washing chamber 1104 of the washing appliance 1000 to achieve the effect of drying tableware and other objects.

[0049] The evaporator 20 can be mounted on the base 1400, and the condenser 30 can be mounted on the main body 1500; alternatively, the condenser 30 can be mounted on the base 1400, and the evaporator 20 can be mounted on the main body 1500. The condenser 30 and the evaporator 20 can be connected to the compressor 60 via pipe 61.

[0050] The compressor 60, condenser 30, throttling device 90, and evaporator 20, as the main components of the heat pump drying system 1200 of the washing appliance 1000, can be connected in sequence to form a closed refrigerant circuit. This allows the refrigerant, acting as the refrigerant, to circulate within the sealed refrigerant circuit formed by the compressor 60, condenser 30, throttling device 90, and evaporator 20. The four components work together to enable the heat pump drying system 1200 to dry tableware and other items. During the drying phase of the heat pump drying system 1200, the compressor 60 operates, pumping high-temperature, high-pressure refrigerant to the condenser 30 to heat the air. After heat exchange with the air, the refrigerant flows out of the condenser 30, then passes through the throttling device 90 to become low-temperature, low-pressure refrigerant, flowing into the evaporator 20 to exchange heat with the air and evaporate. It then returns to the compressor 60 to complete the entire heat pump heating cycle. The dried air is then heated by the condenser 30 and re-enters the washing chamber 1104 of the washing appliance 1000. The throttling device 90 can be an expansion valve, or more specifically, an electronic expansion valve.

[0051] Please refer to Figures 2 and 4. In some embodiments, the main body 1500 includes an inner liner 1100 and a door 1600, with one of the evaporator 20 and the condenser 30 disposed on the base 1400 and the other disposed on the inner liner 1100 or the door 1600.

[0052] In this way, the installation space of the inner tank 1100 and the door 1600 can be fully utilized, saving the installation space of the base 1400, resulting in a high degree of integration and a compact structure for the washing appliance 1000.

[0053] Specifically, the inner liner 1100 may form a washing chamber 1104, and the door 1600 may rotate relative to the base 1400 to open or close the opening of the washing chamber 1104. The evaporator 20 may be mounted on the base 1400, and the condenser 30 may be mounted on the side wall 1101 of the inner liner 1100 or on the door 1600; alternatively, the condenser 30 may be mounted on the base 1400, and the evaporator 20 may be mounted on the side wall 1101 of the inner liner 1100 or on the door 1600. The evaporator 20 or the condenser 30 may be installed below the door 1600 or on the side of the door 1600 facing the inner liner 1100.

[0054] Referring to Figures 2 and 4, in some embodiments, the body 1500 includes an inner liner 1100 and an outer shell 1700 surrounding the inner liner 1100, with one of the evaporator 20 and the condenser 30 disposed on the base 1400 and the other disposed between the inner liner 1100 and the outer shell 1700.

[0055] In this way, the installation space between the inner tank 1100 and the outer shell 1700 can be fully utilized, saving the installation space of the base 1400, resulting in a high degree of integration and a compact structure for the washing appliance 1000.

[0056] Specifically, the outer shell 1700 can cover the inner liner 1100, the base 1400, and the heat pump drying system 1200 to protect them from damage caused by external impacts. The evaporator 20 can be mounted on the base 1400, and the condenser 30 can be positioned between the inner liner 1100 and the outer shell 1700; alternatively, the condenser 30 can be mounted on the base 1400, and the evaporator 20 can be positioned between the inner liner 1100 and the outer shell 1700. The evaporator 20 or the condenser 30 can be installed on the side wall 1101 of the inner liner 1100 facing the outer shell 1700, or on the side wall of the outer shell 1700 facing the inner liner 1100.

[0057] Please refer to Figure 1. In some embodiments, the air duct component 100 forms a flow guide channel 11. Both ends of the flow guide channel 11 are connected to the washing chamber 1104. The evaporator 20 and the condenser 30 are arranged in the same flow guide channel 11. Along the flow direction of the flow guide channel 11, the evaporator 20 is located upstream of the condenser 30. The heat pump drying system 1200 is configured to first cool and dehumidify the air flowing out of the inner tank 1100 by the evaporator 20, and then heat it by the condenser 30 before returning it to the inner tank 1100.

[0058] Thus, by setting the evaporator 20 upstream of the condenser 30, the evaporator 20 and the condenser 30 cooperate with each other to first cool and dry the air in the same guide channel 11 and then heat it, so that the washing appliance 1000 can use the heat pump drying system to dry tableware and other items.

[0059] Specifically, the air duct component 100 forms a guide channel 11 to achieve a ventilation effect, allowing gas to circulate between the inner tank 1100 of the washing appliance 1000 and the heat pump drying system 1200 to dry tableware and other items. The guide channel 11 can be configured in a curved or other shape to meet airflow requirements. The cross-sectional area of ​​the guide channel 11 can vary at different locations. For example, the cross-sectional area of ​​the guide channel 11 is larger at the location housing the evaporator 20 and condenser 30, while the cross-sectional area is smaller at other locations.

[0060] Referring to Figure 3, in some embodiments, the flow channel 11 includes an evaporator duct, with the evaporator 20 disposed within it. The duct component 100 has a drain outlet 15 located below the evaporator 20 and communicating with the evaporator duct 201. Specifically, the drain outlet 15 may be located at the bottom of the evaporator duct 201 to facilitate the accumulation of condensate and its discharge through the drain outlet 15 out of the flow channel 11, reducing the amount of condensate remaining in the duct component 100.

[0061] Please refer to Figures 1 and 5. In some embodiments, the condenser 30 includes a plurality of fins 21, and airflow channels 22 are formed between the plurality of fins 21. The airflow channel 22 is guided in the same direction as the airflow channel 11.

[0062] In this way, the fins 21 can increase the contact area between the condenser 30 and the air, allowing the heat medium to quickly release heat to the air and continuously introduce hot air from the environment into the airflow channel 22, thereby improving the heat exchange efficiency.

[0063] Specifically, multiple fins are arranged at intervals along a direction perpendicular to the flow direction of the flow channel 11. The shape of the fins 21 can be square, and the material of the fins 21 can be a metal material with high thermal conductivity, such as copper. It is understood that the shape of the fins 21 can also be other shapes, and there are no specific restrictions.

[0064] Please refer to Figure 5. In some embodiments, the thickness direction of the fin 21 is the same as the horizontal direction, and the height direction h of the fin 21 is perpendicular to the flow direction of the flow channel 11 where the condenser 20 is located.

[0065] In this way, the area occupied by the condenser 30 in the flow channel 11 can be reduced, thereby reducing the area occupied by the air duct component 100 on the heat pump drying system 1200, thus making the washing appliance 1000 compact.

[0066] Specifically, the height of fin 21 can be greater than the width of fin 21. The width direction of fin 21 is the flow direction of the flow channel 11, the thickness direction of fin 21 is a horizontal direction perpendicular to the width direction of fin 21, and the height direction h of fin 21 is a vertical direction perpendicular to both the thickness and width directions of fin 21. The width direction of fin 21 can be parallel to the width direction of condenser 30.

[0067] Please refer to Figures 1, 2 and 6. In some embodiments, the air duct component 100 includes an air duct housing 10, an air inlet pipe 70 and an exhaust pipe 80. The air inlet pipe 70 and the exhaust pipe 80 are both connected to the air duct housing 10 and are both connected to the inner liner 1100. The evaporator 20 and the condenser 30 are spaced apart in the air duct housing 10. The air duct housing 10, the air inlet pipe 70 and the exhaust pipe 80 together form a guide channel 11.

[0068] In this way, the air inlet pipe 70 can guide the gas in the inner tank 1100 into the air duct housing 10, and the exhaust pipe 80 can guide the gas, after passing through the evaporator 20 and condenser 30 in sequence, into the inner tank 1100, realizing the circulation of gas between the air duct component 100 and the inner tank 1100. In addition, by placing the evaporator 20 and condenser 30 in the air duct housing 10, the air duct housing 10, evaporator 20 and condenser 30 can form an integral module, which is convenient for assembling into the washing appliance 1000 and helps to reduce the manufacturing cost of the washing appliance 1000.

[0069] Specifically, the duct housing 10 is used for ventilation. The duct housing 10 can be made entirely of easily moldable materials such as plastic, making it easy to manufacture. The duct housing 10 can be configured with a specific external structure according to the installation position of the duct component 100, so that the duct component 100 fits more compactly with the surrounding components. The duct housing 10 is connected to the inner liner 1100.

[0070] The intake pipe 70 and the air duct housing 10 can be a single molded structure or a separate, detachable structure. Similarly, the exhaust pipe 80 and the air duct housing 10 can be a single molded structure or a separate, detachable structure.

[0071] Referring to Figures 3, 4, and 6, in some embodiments, the evaporator 20 is disposed on the side wall 1101 of the inner tank 1100, and the condenser 30 is disposed in the air duct housing 10, which is mounted on the base 1400, with the evaporator 20 positioned above the condenser 30. This fully utilizes the side space of the inner tank 1100, saving installation space in the base 1400, resulting in a high degree of integration and a compact structure for the washing appliance 1000.

[0072] Specifically, the evaporator 20 can be installed on the left side wall 1101, right side wall 1101, or rear side wall 1101 of the inner liner 1100. The condenser 30 can be installed at the end of the air duct housing 10 near the intake pipe 70, or at the end of the air duct housing 10 near the exhaust pipe 80. The air duct housing 10 and the evaporator 20 can be installed on the same side of the inner liner 1100. For example, the evaporator 20 can be installed on the right side wall 1101 of the inner liner 1100, and the air duct housing 10 can be installed on the right side of the base 1400. The evaporator 20 is located above the condenser 30; it can be located to the upper left or upper right of the condenser 30.

[0073] Please refer to Figures 1, 3, and 4. In some embodiments, the evaporator 20, the air inlet pipe 70, and the exhaust pipe 80 are all mounted on the inner liner 1100. The evaporator 20 is vertically mounted on the side wall 1101 of the inner liner 1100, and the height direction h of the evaporator 20 is the same as the flow direction of the guide channel 11 where the evaporator 20 is located. This increases the contact area between the gas in the guide channel 11 and the evaporator 20, which is beneficial for improving the drying effect on the air flowing through the evaporator 20. In addition, the fact that the evaporator 20, the air inlet pipe 70, and the exhaust pipe 80 are all mounted on the inner liner 1100 makes it easier to integrate the evaporator 20, the air inlet pipe 70, and the exhaust pipe 80 with the inner liner 1100, making the structure of the air duct component 100 simpler, further improving the reliability of the washing appliance 1000, and reducing manufacturing costs.

[0074] Specifically, the evaporator 20, the intake pipe 70, and the exhaust pipe 80 can be located on the same side wall 1101 of the inner liner 1100. For example, the evaporator 20, the intake pipe 70, and the exhaust pipe 80 are located on the right side wall 1101 of the inner liner 1100, and the condenser 30 is located on the right side of the base 1400.

[0075] Please refer to Figures 3 and 6. In some embodiments, the air duct housing 10 includes a main body 12 and two interface portions 13. Both interface portions 13 are connected to the main body 12 and are located on the same side of the main body 12 and spaced apart. One interface portion 13 is connected to the air intake pipe 70 and the other interface portion 13 is connected to the exhaust pipe 80.

[0076] Thus, both interface parts 13 are connected to the same side of the main body 12, so that the air inlet and outlet of the air duct housing 10 are located on the same side. This is beneficial for the assembly of the air duct housing 10 with other components, reduces interference between the air duct housing 10 and surrounding components, and simplifies the structure.

[0077] Specifically, the volume of the main body 12 is larger than that of the interface 13, making it easier to connect the interface 13 to other pipe fittings. The main body 12 is generally block-shaped.

[0078] The interface portion 13 protrudes from the surface of the main body portion 12. The interface portion 13 is similar to a flat tube. The interface portion 13 can be located on one side of the main body portion 12 in the length or width direction. The two interface portions 13 can have the same shape, structure, and size, thereby reducing the manufacturing cost of the air duct housing 10.

[0079] Specifically, one end of the intake pipe 70 is connected to one of the interface portions 13, and the other end of the intake pipe 70 is connected to the inner liner 1100. One end of the exhaust pipe 80 is connected to the other interface portion 13, and the other end of the exhaust pipe 80 is connected to the inner liner 1100.

[0080] It is understood that the main body 12 and the two interface parts 13 are all part of the flow channel 11. When the air duct housing 10 is ventilated, the gas passes through one of the interface parts 13, the main body 12 and the other interface part 13 in sequence.

[0081] Please refer to Figures 1, 3 and 6. In some embodiments, the main body 12 includes a top surface 120, and an interface 13 is connected to the edge of the top surface 120. A receiving space 1201 is formed between the top surface 120 and the interface 13. The receiving space 1201 includes the corner where the bottom wall and the side wall 1101 of the inner liner 1100 are connected. The top surface 120 is in contact with the bottom wall of the inner liner 1100.

[0082] Thus, the accommodating space 1201 formed between the top surface 120 and the interface portion 13 can accommodate the inner liner 1100, and the interface portion 13 can avoid the connection between the inner liner 1100 and the air intake pipe 70 and the exhaust pipe 80. This is beneficial for the assembly of the inner liner 1100 with other components, reduces interference between the inner liner 1100 and surrounding components, and has a simple structure.

[0083] Specifically, the connection between the interface portion 13 and the top surface 120 can be arc-shaped or bent, and the edge connecting the top surface 120 and the interface portion 13 is higher than the edge where the top surface 120 and the bottom wall of the inner liner 1100 are attached. The accommodating space 1201 is the space enclosed by the side of the top surface 120 facing the interface portion 13 and the side of the interface portion 13 facing the top surface 120. The bottom wall of the inner liner 1100 is attached to the top surface 120, and the side wall of the inner liner 1100 is attached to the interface portion 13.

[0084] Referring to Figures 1, 3, and 6, in some embodiments, the heat pump drying system 1200 includes a first fan 40 and a second fan 41. The first fan 40 is located between the first through-hole 1102 and the evaporator 20, and the second fan 41 is located downstream of the condenser 30. The first fan 40 and the second fan 41 are used to form an airflow in the guide channel 11. The airflow flows out through the inner liner 1100 and passes sequentially through the evaporator 20 and the condenser 30 before re-entering the inner liner 1100. In this way, the first fan 40 and the second fan 41 can provide power for the gas flow in the guide channel 11.

[0085] Specifically, the first fan 40 and the second fan 41 can be either axial flow fans or centrifugal fans. When the first fan 40 and the second fan 41 are running, they create pressure in the guide channel 11, causing the gas to circulate along the path of inner liner 1100 → guide channel 11 → inner liner 1100.

[0086] The first fan 40 can be installed at the air inlet of the guide channel 11 by screws. After the first fan 40 is started, it can form a negative pressure on the side facing the inner liner 1100 to draw gas from the inner liner 1100. The second fan 41 can be installed at the air outlet of the guide channel 11 by screws to form a positive pressure on the side facing the inner liner 1100, thereby driving gas into the inner liner 1100.

[0087] Please refer to Figures 1-3. In some embodiments, the inner liner 1100 is provided with a first through hole 1102 and a second through hole 1103. The air intake pipe 70 is connected to the inner liner 1100 through the first through hole 1102, and the exhaust pipe 80 is connected to the inner liner 1100 through the second through hole 1103.

[0088] In this way, the gas in the inner liner 1100 can enter the air intake pipe 70 through the first through hole 1102, and the gas in the exhaust pipe 80 can enter the inner liner 1100 through the second through hole 1103, so that the gas can circulate between the air duct component 100 and the inner liner 1100.

[0089] Specifically, the first through hole 1102 and the second through hole 1103 are holes that penetrate the side wall 1101 of the inner liner 1100, and the height of the second through hole 1103 can be higher than the height of the first through hole 1102. The first through hole 1102 and the second through hole 1103 can be provided on the same side wall 1101 of the inner liner 1100. For example, the first through hole 1102 and the second through hole 1103 can be provided on either the left side wall 1101 or the right side wall 1101 of the inner liner 1100.

[0090] In some embodiments, the second through hole 1103 may be provided on the top wall of the inner liner 1100, and the first through hole 1102 may be provided on the left side wall 1101 or the right side wall 1101 of the inner liner 1100.

[0091] Referring to Figure 3, in some embodiments, the first through hole 1102 and the second through hole 1103 are spaced apart along the depth direction X of the inner liner 1100. This facilitates the installation of the air duct component 100 on the side wall of the inner liner 1100, providing space for the arrangement of the evaporator 20 and the condenser 30.

[0092] Specifically, the first through hole 1102 can be located at the lower left end of the left side wall 1101 of the inner liner 1100, and the second through hole 1103 can be located at the upper right end of the left side wall 1101 of the inner liner 1100; or the first through hole 1102 can be located at the upper left end of the left side wall 1101 of the inner liner 1100, and the second through hole 1103 can be located at the lower right end of the left side wall 1101 of the inner liner 1100.

[0093] Along the depth direction X of the inner liner 1100, the first through hole 1102 and the second through hole 1103 can be located between the evaporator 20 and the condenser 30, or the evaporator 20 and the condenser 30 can be located between the first through hole 1102 and the second through hole 1103. The depth direction X of the inner liner 1100 is the direction in which the opening of the washing chamber 1104 extends inward.

[0094] In summary, please refer to Figures 1-3. In one embodiment, after the washing appliance 1000 finishes washing and enters the drying mode, the heat pump drying system 1200 starts working. The fan 40 draws the hot and humid gas from the inner tank 1100 into the guide channel 11 through the first through hole 1102. After the hot and humid gas passes through the evaporator 20, the evaporator 20 can cool and dehumidify the hot and humid gas. The gas dried by the evaporator 20 is heated after passing through the condenser 30. The fan 40 drives the heated gas to enter the inner tank 1100 through the second through hole 1103 to dry the tableware. This cycle is repeated to achieve the effect of drying the tableware.

[0095] 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 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.

[0096] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A washing appliance characterised in that, The base; The main body is arranged on the base and forms a washing cavity; The heat pump drying system includes an air duct component, a compressor, a condenser, a throttling device and an evaporator, the end of the air duct component is connected with the washing cavity, the evaporator and the condenser are arranged in the air duct component, the evaporator is used for cooling the gas flowing out of the washing cavity, and the condenser is used for heating the gas flowing into the washing cavity, wherein one of the evaporator and the condenser is arranged on the base, and the other is arranged on the main body. The main body includes an inner container and a door body, one of the evaporator and the condenser is arranged on the base, and the other is arranged on the inner container or the door body; and / or, 2. The washing appliance according to claim 1, characterized in that, The main body includes an inner container and an outer shell surrounding the inner container, one of the evaporator and the condenser is arranged on the base, and the other is arranged between the inner container and the outer shell. The air duct component forms a flow guide channel, both ends of the flow guide channel are connected with the washing cavity, the evaporator and the condenser are arranged in the same flow guide channel, along the flow direction of the flow guide channel, the evaporator is located upstream of the condenser, and the heat pump drying system is configured to cool and dehumidify the air flowing out of the inner container by the evaporator first, and then heat the air by the condenser and return the air to the inner container.

3. The washing appliance according to claim 2, characterized in that, The flow guide channel includes an evaporator air duct, the evaporator is arranged in the evaporator air duct, and the air duct component is provided with a drain port located below the evaporator and connected with the evaporator air duct.

4. The laundry appliance according to claim 3, characterized in that, The air duct component includes an air duct shell, an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are connected with the air duct shell, the air duct shell, the air inlet pipe and the air outlet pipe jointly form the flow guide channel, the inner container is provided with a first through hole and a second through hole, the air inlet pipe is connected with the inner container through the first through hole, and the air outlet pipe is connected with the inner container through the second through hole.

5. The laundry appliance according to claim 3 or 4, characterized in that, The evaporator is arranged on the side wall of the inner container, the condenser is arranged in the air duct shell, the air duct shell is arranged on the base, and the evaporator is located above the condenser.

6. The washing appliance according to claim 5, characterized in that, The condenser includes a plurality of fins, a plurality of air flow channels are formed between the fins, the flow direction of the air flow channels is consistent with the flow direction of the flow guide channel, the thickness direction of the fins is the same as the horizontal direction, and the height direction of the fins is perpendicular to the flow direction of the flow guide channel where the condenser is located.

7. The washing appliance according to claim 6, characterized in that, The evaporator, the air inlet pipe and the air outlet pipe are arranged on the inner container, the evaporator is vertically arranged on the side wall of the inner container, and the height direction of the evaporator is the same as the flow direction of the flow guide channel where the evaporator is located.

8. The laundry appliance according to any one of claims 5-7, characterized in that, ​ 9. The washing appliance according to any one of claims 5-8, characterized in that, The heat pump drying system comprises a first fan and a second fan, the first fan is located between the first through hole and the evaporator, the second fan is located downstream of the condenser, and the first fan and the second fan are used to form an air flow in the flow guide channel, the air flow flows out through the inner container and enters the inner container again after sequentially passing through the evaporator and the condenser.

10. The washing appliance according to any one of claims 5-9, characterized in that, The evaporator, the condenser, the air inlet pipe and the air outlet pipe are located on the same side of the inner container.

Citation Information

Patent Citations

  • Heat pump type dish washing machine and control method thereof

    CN106606342A

  • Air energy dish washing machine

    CN112603231A

  • Dishwasher

    CN118141294A

  • Heat pump type washing equipment

    CN215305637U

  • Heat pump system and dish washing machine

    CN217938158U