Washing electric appliance

Abstract

The utility model discloses a washing electric appliance which comprises an inner container and a heat pump drying system, the inner container is provided with a washing cavity, and the heat pump drying system comprises a first air duct component, a second air duct component, a compressor, a condenser, a throttling device and an evaporator, the first air duct component and the second air duct component are both communicated with the washing cavity and are arranged independently, the evaporator is arranged in the first air duct component and used for cooling air flowing out of the inner container and then discharging the air out of the inner container, and the condenser is arranged in the second air duct component and used for cooling the air flowing out of the inner container. The condenser is used for heating gas flowing out of the inner container and then returning the gas to the inner container. Thus, the evaporator can cool the gas flowing out of the inner container and then discharge the gas out of the inner container, condensate water generated in the inner container is reduced, and therefore the drying effect of the washing electric appliance can be improved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly relates to a washing appliance. Background Art

[0002] In the related art, a washing appliance includes an inner container and a heat pump drying system, and the washing appliance has a drying mode for drying tableware. However, when the washing appliance is drying, the drying effect of the heat pump drying system needs to be further improved. Summary of the Invention

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

[0004] This application provides a washing appliance, including:

[0005] An inner container provided with a washing chamber;

[0006] A heat pump drying system, the heat pump drying system includes a first air duct component, a second air duct component, a compressor, a condenser, a throttling device and an evaporator that are connected in sequence to form a closed refrigerant circuit. Both the first air duct component and the second air duct component are connected to the washing chamber. The first air duct component and the second air duct component are independently arranged. The evaporator is arranged in the first air duct component, and the evaporator is used to cool the gas flowing out of the inner container and then discharge it to the outside of the inner container. The condenser is arranged in the second air duct component, and the condenser is used to heat the gas flowing out of the inner container and then return it to the inner container.

[0007] In this way, the evaporator can cool the gas flowing out of the inner container and then discharge it to the outside of the inner container, reducing the generation of condensed water in the inner container, thereby being beneficial to improving the drying effect of the washing appliance.

[0008] In some embodiments, the first air duct component is formed with a first air flow section, a second air flow section and a third air flow section that are connected in sequence. The first air flow section is connected to the washing chamber. The end of the third air flow section away from the second air flow section is formed with an air outlet communicating with the outside of the inner container, and the air outlet is used to discharge the gas cooled by the evaporator to the outside of the inner container.

[0009] In some embodiments, the end of the second air flow section away from the third air flow section is formed with an air inlet communicating with the outside of the inner container, and the air inlet is used to introduce external gas into the second air flow section.

[0010] In some embodiments, the evaporator is disposed within the third air flow section. The first air duct component further includes a fourth air flow section. The two ends of the fourth air flow section are respectively connected to the third air flow section and the exterior of the inner container, and the fourth air flow section is located downstream of the evaporator.

[0011] In some embodiments, the heat pump drying system includes a valve disposed in the first air flow section. The valve is configured to regulate the air flow rate flowing from the air inlet and the first air flow section to the second air flow section.

[0012] In some embodiments, when the valve opens the air inlet and blocks the first air flow section from the second air flow section, the heat pump drying system is configured to exchange heat between the external gas and the evaporator and then discharge the gas from the air outlet.

[0013] In some embodiments, when the valve closes the air inlet and connects the first air flow section to the second air flow section, the heat pump drying system is configured to cool and dehumidify the air flowing out of the inner container through the evaporator and then discharge the air from the air outlet to the exterior of the inner container.

[0014] In some embodiments, when the valve opens the air inlet and connects the first air flow section to the second air flow section, the heat pump drying system is configured to mix the air flowing out of the inner container with the external gas and then discharge the mixture from the air outlet to the exterior of the inner container.

[0015] In some embodiments, the heat pump drying system includes a first fan disposed in the first air duct component. The first fan is configured to form an air flow flowing from the first air flow section and / or the air inlet to the air outlet within the first air duct component.

[0016] In some embodiments, the heat pump drying system includes a second fan disposed in the second air duct component. The second fan is configured to form a circulating air flow between the inner container and the second air duct component. The heat pump drying system is configured to heat the air flowing out of the inner container through the condenser and then return the air to the inner container.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of a washing appliance in some embodiments of the present application;

[0020] Figure 2 is a schematic structural view of a washing appliance according to some embodiments of the present application;

[0021] Figure 3 is a schematic structural view of a fin according to some embodiments of the present application.

[0022] Description of reference numerals:

[0023] 1000 - washing appliance, 1100 - inner container, 1101 - washing chamber, 1102 - side wall, 1200 - heat pump drying system, 1300 - water cup, 100 - first air duct component, 200 - second air duct component, 11 - first air flow section, 12 - second air flow section, 13 - third air flow section, 14 - fourth air flow section, 15 - valve, 20 - evaporator, 21 - fin, 22 - air flow channel, 30 - condenser, 40 - first fan, 41 - second fan, 60 - compressor, 61 - pipeline, 71 - air inlet, 81 - air outlet, 90 - throttling device. Detailed embodiments

[0024] The following describes in detail the embodiments of the present application. Examples of the embodiments are shown in the drawings, where 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 drawings are exemplary and are only used to explain the embodiments of the present application and should not be construed as limiting the embodiments of the present application.

[0025] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0026] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0027] In the embodiments of the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. To simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. The embodiments of the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the embodiments of the present application provide examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0029] Please refer to Figure 1, this application provides a washing appliance 1000, including an inner container 1100 and a heat pump drying system 1200. The inner container 1100 is provided with a washing chamber 1101. The heat pump drying system 1200 includes a first air duct component 100, a second air duct component 200, a compressor 60, a condenser 30, a throttling device 90, and an evaporator 20 that are connected in sequence to form a closed refrigerant circuit. Both the first air duct component 100 and the second air duct component 200 are connected to the washing chamber 1101. The first air duct component 100 and the second air duct component 200 are independently arranged. The evaporator 20 is arranged in the first air duct component 100. The evaporator 20 is used to cool the gas flowing out of the inner container 1100 and then discharge it to the outside of the inner container 1100. The condenser 30 is arranged in the second air duct component 200. The condenser 30 is used to heat the gas flowing out of the inner container 1100 and then return it to the inner container 1100.

[0030] In this way, the evaporator 20 can cool the gas flowing out of the inner container 1100 and then discharge it to the outside of the inner container 1100, reducing the generation of condensed water in the inner container 1100, which is beneficial to improving the drying effect of the washing appliance 1000.

[0031] Specifically, the washing appliance 1000 is mainly used for washing various tableware. Among them, the inner container 1100 can be used as the main structure of the washing appliance 1000. The inner container 1100 forms a washing chamber 1101 with an opening. Objects such as tableware can be placed into the washing chamber 1101 through the opening of the washing chamber 1101. A bracket for carrying and fixing tableware, and a water cup 1300 placed below the bracket can be arranged in the washing chamber 1101. The water cup 1300 is used to collect and discharge the water flow generated during washing and condensation. The washing appliance 1000 is, for example, a dishwasher.

[0032] The heat pump drying system 1200 is used to dry the humid and hot air flowing out of the inner container 1100 and discharge the dried air, and is also used to heat the humid and hot air flowing out of the inner container 1100 and make the heated air flow into the inner container 1100 again, achieving the effect of drying objects such as tableware. It should be noted that the dried air mentioned above is relative to the humid and hot air in the inner container 1100, and does not mean that the air contains no water vapor at all.

[0033] The independent arrangement of the first air duct component 100 and the second air duct component 200 means that the first air duct component 100 and the second air duct component 200 are not connected to each other in structure and do not affect each other in function. The first air duct component 100 and the second air duct component 200 are independently installed and independently controlled.

[0034] The evaporator 20 is a heat exchanger in the heat pump drying system 1200. When the heat pump drying system 1200 operates, the evaporator 20 can refrigerate, thereby absorbing the heat of the air around the evaporator 20 to lower the temperature of the surrounding air, so that the gas flowing through the evaporator 20 condenses to form condensed water, achieving the effect of drying the air.

[0035] The evaporator 20 is generally flat. The evaporator 20 can be placed vertically, or rather, the thickness direction of the evaporator 20 is generally horizontally arranged, and the thickness direction of the evaporator 20 is substantially parallel to the central axis of the first air duct component 100, so as to increase the contact area between the gas in the first air duct component 100 and the evaporator 20, which is beneficial to improving the drying effect on the air flowing through the evaporator 20.

[0036] The condenser 30 is also a heat exchanger in the heat pump drying system 1200. When the heat pump drying system 1200 operates, the condenser 30 can heat, thereby absorbing the heat to heat the surrounding air to increase the temperature of the surrounding air, so that after the gas flowing through the condenser 30 enters the inner tank 1100 of the dishwashing appliance 1000 again, the effect of drying objects such as tableware is achieved.

[0037] The condenser 30 is generally flat. The condenser 30 can be placed vertically, or rather, the thickness direction of the condenser 30 is generally horizontally arranged, and the thickness direction of the condenser 30 is substantially parallel to the central axis of the second air duct component 200, so as to make the contact area between the gas in the second air duct component 200 and the condenser 30 larger, which is beneficial to improving the heating effect on the air flowing through the condenser 30.

[0038] The condenser 30 and the evaporator 20 are connected to the compressor 60 through a pipeline 61. The compressor 60, the condenser 30, the throttling device 90 and the evaporator 20 are the main components of the heat pump drying system 1200 of the dishwashing appliance 1000, and are connected in sequence to form a closed refrigerant circuit, so that the refrigerant as the refrigerant can circulate in the sealed refrigerant circuit composed of the compressor 60, the condenser 30, the throttling device 90 and the evaporator 20. The cooperation of the four can enable the heat pump drying system 1200 to achieve the effect of drying objects such as tableware. When the heat pump drying system 1200 is in the drying stage, the compressor 60 operates to pump the high-temperature and high-pressure refrigerant to the condenser 30 to heat the air. After the refrigerant exchanges heat with the air, it flows out of the condenser 30, and then passes through the throttling device 90 for throttling and becomes a low-temperature and low-pressure refrigerant flowing into the evaporator 20 to exchange heat and evaporate with the air, and then returns to the compressor 60 to complete the entire heat pump heating cycle. The throttling device 90 can be an expansion valve. Further, the throttling device 90 can be an electronic expansion valve.

[0039] Please refer to Figure 1, in some embodiments, the first air duct component 100 is formed with a first air flow section 11, a second air flow section 12, and a third air flow section 13 that are connected in sequence. The first air flow section 11 is in communication with the washing chamber 1101. An air outlet 81 communicating with the outside of the inner container 1100 is formed at the end of the third air flow section 13 away from the second air flow section 12. The air outlet 81 is used to discharge the gas cooled by the evaporator 20 to the outside of the inner container 1100.

[0040] In this way, the gas from the inner container 1100 can be discharged from the air outlet 81 through the third air flow section 13 to the outside of the inner container 1100, reducing the generation of condensed water in the inner container 1100, thereby facilitating improving the drying effect of the washing appliance 1000.

[0041] Specifically, the first air flow section 11, the second air flow section 12, and the third air flow section 13 can be tubular structures, and the cross-sectional shapes include but are not limited to regular shapes such as circular and rectangular shapes or irregular shapes. The three air flow sections can be an integrally formed structure or a split and detachable structure. For example, the first air flow section 11 and the second air flow section 12 are integrally formed, and the second air flow section 12 and the third air flow section 13 are fixedly connected by means of threads, welding, etc. One end of the first air flow section 11 is in communication with the washing chamber 1101, and the other end is in communication between the two ends of the second air flow section 12. One end of the third air flow section 13 is in communication with one end of the second air flow section 12, and the other end forms an air outlet 81. For the convenience of manufacturing and forming the air outlet 81, the shape of the air outlet 81 can be the same as the cross-sectional shape of the third air flow section 13.

[0042] Please refer to Figure 1 , in some embodiments, an air inlet 71 communicating with the outside of the inner container 1100 is formed at the end of the second air flow section 12 away from the third air flow section 13. The air inlet 71 is used to introduce external gas into the second air flow section 12.

[0043] In this way, external gas can be sucked through the air inlet 71 to dissipate heat from the evaporator 20, enabling the evaporator 20 to maintain a normal working state.

[0044] Specifically, for the convenience of manufacturing and forming the air inlet 71, the shape of the air inlet 71 can be the same as the cross-sectional shape of the second air flow section 12.

[0045] Please refer to Figure 2 , in some embodiments, the evaporator 20 is disposed in the third air flow section 13. The first air duct component 100 further includes a fourth air flow section 14. The two ends of the fourth air flow section 14 are respectively in communication with the third air flow section 13 and the outside of the inner container 1100. The fourth air flow section 14 is located downstream of the evaporator 20.

[0046] In this way, external gas can enter the third air flow section 13 through the fourth air flow section 14 and mix with the gas from the inner tank 1100, so as to further reduce the condensate while dehumidifying.

[0047] Specifically, one end of the fourth air flow section 14 communicates between the evaporator 20 and the air outlet 81 of the third air flow section 13, and the other end forms a ventilation opening. External air enters the fourth air flow section 14 from the ventilation opening, mixes with the gas from the inner tank 1100 cooled by the evaporator 20 in the third air flow section 13, and is discharged to the outside from the air outlet 81. A valve can be provided in the fourth air flow section 14, and the valve is used to adjust the air flow rate of the external gas flowing from the ventilation opening to the third air flow section 13, so as to flexibly control the mixing ratio of the gas cooled by the evaporator 20 and the external gas, thereby achieving the effect of reducing condensate after dehumidification.

[0048] Please refer to Figure 1 and Figure 2 , in some embodiments, the heat pump drying system 1200 includes a valve 15 provided in the first air flow section 11, and the valve 15 is used to adjust the air flow rate flowing from the air inlet 71 and the first air flow section 11 to the second air flow section 12.

[0049] In this way, by adjusting the air flow rate of the gas from the air inlet 71 and the first air flow section 11 to the second air flow section 12, the mixing ratio of the gas from the inner tank 1100 and the external gas can be flexibly controlled, so as to achieve the effect of reducing condensate before dehumidification.

[0050] Specifically, the valve 15 can rotate between a first position and a second position relative to the first air flow section 11. When the valve 15 is in the first position, the valve 15 abuts against the side wall of the first air flow section 11, and the valve 15 blocks the connection between the first air flow section 11 and the second air flow section 12 and connects the air inlet 71 and the second air flow section 12; when the valve 15 is in the second position, the valve 15 abuts against the side wall of the second air flow section 12, and the valve 15 connects the first air flow section 11 and the second air flow section 12 and blocks the connection between the air inlet 71 and the second air flow section 12. By controlling the rotation angle of the valve 15, the opening degree of the connection between the first air flow section 11 and the second air flow section 12 and the opening degree of the connection between the air inlet 71 and the second air flow section 12 can be adjusted, so as to adjust the air flow rate of the gas from the inner tank 1100 flowing from the first air flow section 11 to the second air flow section 12 and the air flow rate of the external gas flowing from the air inlet 71 to the second air flow section 12.

[0051] The rotation angle of the valve 15 can be controlled by a driving mechanism. The valve 15 can be arranged at the intersection of the first air flow section 11 and the second air flow section 12.

[0052] In some embodiments, when the valve 15 opens the air inlet 71 and blocks the first air flow section 11 and the second air flow section 12, the heat pump drying system 1200 is configured to exchange heat between the external gas and the evaporator 20 and then discharge it from the air outlet 81. Thus, during the washing stage, the external gas can discharge the heat of the evaporator 20 to dissipate heat from the evaporator 20, so that the evaporator 20 maintains a normal working state.

[0053] Specifically, when the valve 15 is in the first position, the connection between the first air flow section 11 and the second air flow section 12 is disconnected, and the opening degree of the connection between the external gas and the second air flow section 12 is the largest. The air flow rate from the air inlet 71 to the second air flow section 12 is the largest, and all the gas in the second air flow section 12 comes from the outside.

[0054] In some embodiments, when the valve 15 closes the air inlet 71 and connects the first air flow section 11 and the second air flow section 12, the heat pump drying system 1200 is configured to cool and dehumidify the air flowing out of the inner tank 1100 through the evaporator 20 and then discharge it from the air outlet 81 to the outside of the inner tank 1100. Thus, in the early stage of the drying stage, the moisture in the inner tank 1100 can be discharged, and the generation of condensed water in the inner tank 1100 can be reduced, which is beneficial to improving the drying effect of the washing appliance 1000.

[0055] Specifically, when the valve 15 is in the second position, the connection between the external gas and the second air flow section 12 is disconnected, and the opening degree of the connection between the first air flow section 11 and the second air flow section 12 is the largest. The air flow rate from the first air flow section 11 to the second air flow section 12 is the largest, and all the gas in the second air flow section 12 comes from the inner tank 1100.

[0056] In some embodiments, when the valve 15 opens the air inlet 71 and connects the first air flow section 11 and the second air flow section 12, the heat pump drying system 1200 is configured to mix the air flowing out of the inner tank 1100 with the external gas and then discharge it from the air outlet 81 to the outside of the inner tank 1100. Thus, in the later stage of the drying stage, the cooling and dehumidification of the air flowing out of the inner tank 1100 can be accelerated, so as to achieve the effect of reducing condensed water before dehumidification.

[0057] Specifically, when the valve 15 is between the first position and the second position, the external gas is connected to the second air flow section 12 and the first air flow section 11 is connected to the second air flow section 12. Part of the gas in the second air flow section 12 comes from the inner tank 1100 and part comes from the outside. The external gas and the gas flowing out of the inner tank 1100 flow to the second air flow section 12 at the same time.

[0058] Please refer to Figure 1 and Figure 2, in some embodiments, the heat pump drying system 1200 includes a first fan 40 disposed in the first air duct component 100. The first fan 40 is configured to form an air flow in the first air duct component 100 that flows from the first air flow section 11 and / or the air inlet 71 towards the air outlet 81.

[0059] Thus, the first fan 40 can provide power for the gas flow in the first air duct component 100, increase the flow rate of the gas in the first air duct component 100, and thereby enhance the drying effect of the heat pump drying system 1200.

[0060] Specifically, the first fan 40 can be an axial flow fan or a centrifugal fan. When the first fan 40 operates, a negative pressure is formed in the first air duct component 100, causing the gas to flow along the path of the inner tank 1100 - the first air flow section 11 - the second air flow section 12 - the third air flow section 13 - the air outlet 81 and / or the air inlet 71 - the second air flow section 12 - the third air flow section 13 - the air outlet 81.

[0061] Please refer to Figure 1 and Figure 2 , in some embodiments, the heat pump drying system 1200 includes a second fan 41 disposed in the second air duct component 200. The second fan 41 is configured to form a circulating air flow between the inner tank 1100 and the second air duct component 200. The heat pump drying system 1200 is configured to return the air flowing out of the inner tank 1100 to the inner tank 1100 after being heated by the condenser 30.

[0062] Thus, the second fan 41 can provide power for the gas flow in the second air duct component 200, increase the flow rate of the gas in the second air duct component 200, and thereby enhance the drying effect of the heat pump drying system 1200.

[0063] Specifically, the second fan 41 can be an axial flow fan or a centrifugal fan. When the second fan 41 operates, a negative pressure is formed in the second air duct component 200, causing the gas to circulate along the path of the inner tank 1100 - the second air duct component 200.

[0064] Please refer to Figure 1 and Figure 2 , in some embodiments, both ends of the second air duct component 200 are connected to the same side wall 1102 of the inner tank 1100. This is beneficial for the assembly of the inner tank 1100 with other components, reduces interference between the inner tank 1100 and surrounding components, and has a simple structure.

[0065] Specifically, both ends of the second air duct component 200 can be connected to the left side wall 1102, the right side wall 1102, or the rear side wall 1102 of the inner container 1100. The two ends of the second air duct component 200 can be connected to the same height position of the same side wall 1102 of the inner container 1100, or can be connected to different height positions of the same side wall 1102 of the inner container 1100. For example, one end of the second air duct component 200 is connected to the upper end of the left side wall 1102 of the inner container 1100, and the other end is connected to the lower end of the left side wall 1102 of the inner container 1100; for another example, one end of the second air duct component 200 is connected to the left end of the rear side wall 1102 of the inner container 1100, and the other end is connected to the right end of the rear side wall 1102 of the inner container 1100; for still another example, one end of the second air duct component 200 is connected to the upper left end of the rear side wall 1102 of the inner container 1100, and the other end is connected to the lower right end of the rear side wall 1102 of the inner container 1100.

[0066] The two ends of the second air duct component 200 and the two ends of the first air duct component 100 can be connected to the same side wall 1102 of the inner container 1100, or can be connected to different side walls 1102 of the inner container 1100. For example, the two ends of the second air duct component 200 can be connected to the left side wall 1102, and the two ends of the first air duct component 100 can be connected to the right side wall 1102.

[0067] Please refer to Figures 1-3 , in some embodiments, the evaporator 20 and / or the condenser 30 each includes a plurality of fins 21, an air flow channel 22 is formed between the plurality of fins 21, and the guiding direction of the air flow channel 22 is consistent with the guiding direction of the corresponding air duct component.

[0068] In this way, the fins 21 can increase the contact area between the evaporator 20 and / or the condenser 30 and the air, so that the refrigerant can quickly absorb and release heat, and improve the heat exchange efficiency.

[0069] Specifically, a plurality of fins 21 can be provided on the evaporator 20, or a plurality of fins 21 can be provided on the condenser 30, or a plurality of fins 21 can be provided on both the evaporator 20 and the condenser 30. The plurality of fins 21 are arranged at intervals in a direction perpendicular to the guiding direction of the corresponding air duct component. After being controlled by the throttling device 90, the temperature of the refrigerant is reduced to be lower than the ambient temperature. Therefore, when the humidity of the air flow entering the evaporator 20 is relatively high, the water vapor in the air flow is likely to condense on the evaporator 20 to form condensed water and flow down through the air flow channel 22.

[0070] The shape of the fins 21 can be a square sheet shape, and the material of the fins 21 can be a metal material with relatively high thermal conductivity, such as copper. It can be understood that the shape of the fins 21 can also be other shapes, and specific limitations are not made.

[0071] In some embodiments, the thickness direction of the fin 21 is the same as the horizontal direction, and the height of the fin 21 is greater than the width of the fin 21.

[0072] In this way, the width of the fin 21 is small, which can reduce the area occupied by the evaporator 20 and / or the condenser 30 in the corresponding duct component, and further reduce the area occupied by the duct component on the heat pump drying system 1200, thereby making the structure of the washing appliance 1000 compact.

[0073] Specifically, the width direction of the fin 21 is the flow guiding direction of the corresponding duct component, the thickness direction of the fin 21 is the horizontal direction perpendicular to the width direction of the fin 21, and the height direction of the fin 21 is the vertical direction perpendicular to the thickness and width directions of the fin 21.

[0074] In summary, please refer to Figure 1 , in one embodiment, when the washing appliance 1000 enters the washing mode, the first fan 40 starts, the valve 15 opens the air inlet 71 and disconnects the communication between the first air flow section 11 and the second air flow section 12, and the external air enters the first duct component 100 through the air inlet 71, flows through the second air flow section 12 and the third air flow section 13, dissipates heat from the evaporator 20 and then is discharged to the outside through the air outlet 81.

[0075] When the washing appliance 1000 finishes washing and enters the early stage of the drying mode, the first fan 40 and the second fan 41 start, the valve 15 closes the air inlet 71 and connects the first air flow section 11 and the second air flow section 12. A part of the gas from the inner tank 1100 flows through the first air flow section 11 and the second air flow section 12 to the third air flow section 13, is cooled and dehumidified by the evaporator 20 and then is discharged to the outside through the air outlet 81. Another part of the gas from the inner tank 1100 enters the second duct component 200, is heated by the condenser 30 and then flows back into the inner tank 1100 again.

[0076] When the washing appliance 1000 finishes washing and enters the late stage of the drying mode, the first fan 40 and the second fan 41 start, the valve 15 opens the air inlet 71 and connects the first air flow section 11 and the second air flow section 12. A part of the gas from the inner tank 1100 is mixed with the external air in the second air flow section 12, is cooled and dehumidified by the evaporator 20 and then is discharged to the outside through the air outlet 81. Another part of the gas from the inner tank 1100 enters the second duct component 200, is heated by the condenser 30 and then flows back into the inner tank 1100 again.

[0077] Please refer to Figure 2, in another embodiment, when the washing appliance 1000 finishes washing and enters the later stage of the drying mode, the first fan 40 and the second fan 41 are started, the valve 15 closes the air inlet 71 and connects the first air flow section 11 with the second air flow section 12. The external air enters the third air flow section 13 through the fourth air flow section 14. A part of the gas from the inner container 1100 flows through the first air flow section 11 and the second air flow section 12 to the third air flow section 13, is cooled and dehumidified by the evaporator 20, mixed with the external air, and discharged to the outside through the air outlet 81. Another part of the gas from the inner container 1100 enters the second air duct component 200, is heated by the condenser 30, and then flows back into the inner container 1100 again.

[0078] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0079] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A washing appliance, characterized in that, Comprising: Inner tank, provided with a washing chamber; Heat pump drying system, the heat pump drying system includes a first air duct component, a second air duct component, a compressor, a condenser, a throttling device and an evaporator that are connected in sequence to form a closed refrigerant circuit, the first air duct component and the second air duct component are both connected to the washing chamber, the first air duct component and the second air duct component are independently arranged, the evaporator is arranged in the first air duct component, and the evaporator is used to cool the gas flowing out of the inner tank and then discharge it to the outside of the inner tank, the condenser is arranged in the second air duct component, and the condenser is used to heat the gas flowing out of the inner tank and then return it to the inner tank.

2. The washing appliance according to claim 1, wherein The first air duct component forms a first air flow section, a second air flow section and a third air flow section that are connected in sequence, the first air flow section is connected to the washing chamber, and an air outlet communicating with the outside of the inner tank is formed at the end of the third air flow section far from the second air flow section, and the air outlet is used to discharge the gas cooled by the evaporator to the outside of the inner tank.

3. The washing appliance according to claim 2, characterized in that, An air inlet communicating with the outside of the inner tank is formed at the end of the second air flow section far from the third air flow section, and the air inlet is used to introduce external gas into the second air flow section.

4. The washing appliance according to claim 2, characterized in that, The evaporator is arranged in the third air flow section, the first air duct component further includes a fourth air flow section, and both ends of the fourth air flow section are respectively connected to the third air flow section and the outside of the inner tank, and the fourth air flow section is located downstream of the evaporator.

5. The washing appliance according to claim 3, characterized in that, The heat pump drying system includes a valve arranged in the first air flow section, and the valve is used to adjust the air flow rate flowing from the air inlet and the first air flow section to the second air flow section.

6. The washing appliance according to claim 5, wherein, When the valve opens the air inlet and blocks the connection between the first air flow section and the second air flow section, the heat pump drying system is configured to exchange heat between the external gas and the evaporator and then discharge it from the air outlet.

7. The washing appliance according to claim 5, wherein, When the valve closes the air inlet and connects the first air flow section and the second air flow section, the heat pump drying system is configured to cool and dehumidify the air flowing out of the inner tank through the evaporator and then discharge it to the outside of the inner tank from the air outlet.

8. The washing appliance according to claim 5, wherein When the valve opens the air inlet and connects the first air flow section and the second air flow section, the heat pump drying system is configured to mix the air flowing out of the inner tank with the external gas and then discharge it to the outside of the inner tank from the air outlet.

9. The washing appliance according to claim 3, wherein, The heat pump drying system includes a first fan arranged in the first air duct component, and the first fan is used to form an air flow flowing from the first air flow section and / or the air inlet to the air outlet in the first air duct component.

10. The washing appliance according to claim 1, wherein, The heat pump drying system includes a second fan arranged in the second air duct component, and the second fan is used to form a circulating air flow between the inner tank and the second air duct component, and the heat pump drying system is configured to heat the air flowing out of the inner tank through the condenser and then return it to the inner tank.

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