Washing appliance

Abstract

A washing appliance (1000), comprising an inner tub (1100) and a heat pump drying system (1200). The inner tub (1100) is provided with a washing chamber (1101). The heat pump drying system (1200) comprises: a first air duct component (100); a second air duct component (200); and a compressor (60), a condenser (30), a throttling apparatus (90), and an evaporator (20) sequentially connected to form a closed refrigerant loop. The first air duct component (100) and the second air duct component (200) are both connected to the washing chamber (1101). The first air duct component (100) and the second air duct component (200) are arranged independently of each other. The evaporator (20) is arranged in the first air duct component (100). The evaporator (20) is used for cooling gas flowing out of the inner tub (1100) and then discharging same to the outside of the inner tub (1100). The condenser (30) is arranged in the second air duct component (200). The condenser (30) is used for heating gas flowing out of the inner tub (1100) and then returning same to the inner tub (1100).

Description

Washing appliance

[0001] Priority information

[0002] This application claims priority to the patent application No. 202421839783.8 filed with the China National Intellectual Property Office on July 31, 2024, and incorporates it by reference in its entirety as if copied herein. TECHNICAL FIELD

[0003] The present application relates to the technical field of household appliances, in particular to a washing appliance. BACKGROUND

[0004] In the related art, the 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

[0005] The present 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.

[0006] The present application provides a washing appliance, comprising:

[0007] an inner container, provided with a washing chamber;

[0008] a heat pump drying system, comprising a first air duct component, a second air duct component, a compressor, a condenser, a throttling device and an evaporator, which constitute a closed refrigerant circuit, the first air duct component and the second air duct component are both communicated with 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 for cooling the gas flowing out of the inner container and then discharging the gas to the outside of the inner container, the condenser is arranged in the second air duct component, and the condenser is used for heating the gas flowing out of the inner container and then returning the gas to the inner container.

[0009] In this way, the evaporator can cool the gas flowing out of the inner container and then discharge the gas to the outside of the inner container, reduce the generation of condensed water in the inner container, and thus facilitate to improve the drying effect of the washing appliance.

[0010] In some embodiments, the first air duct component is formed with a first gas flow section, a second gas flow section and a third gas flow section connected in sequence, the first gas flow section is communicated with the washing chamber, and the third gas flow section is formed with an exhaust port communicated with the outside of the inner container at the end away from the second gas flow section, and the exhaust port is used for discharging the gas cooled by the evaporator to the outside of the inner container.

[0011] In some embodiments, the second airflow section is formed with an air inlet in communication with the outside of the inner container at an end away from the third airflow section, the air inlet being configured to introduce external air into the second airflow section.

[0012] In some embodiments, the evaporator is disposed in the third airflow section, and the first air duct component further comprises a fourth airflow section, two ends of the fourth airflow section being in communication with the third airflow section and the outside of the inner container respectively.

[0013] In some embodiments, the fourth airflow section is downstream of the evaporator.

[0014] In some embodiments, the heat pump drying system comprises a valve disposed in the first airflow section, the valve being configured to regulate the air flow from the air inlet and the first airflow section to the second airflow section.

[0015] In some embodiments, when the valve opens the air inlet and blocks the first airflow section from the second airflow section, the heat pump drying system is configured to discharge the external air after heat exchange with the evaporator from the air outlet.

[0016] In some embodiments, when the valve closes the air inlet and connects the first airflow section with the second airflow section, the heat pump drying system is configured to discharge the air from the inner container after dehumidification and temperature reduction by the evaporator to the outside of the inner container.

[0017] In some embodiments, when the valve opens the air inlet and connects the first airflow section with the second airflow section, the heat pump drying system is configured to discharge the air from the inner container mixed with the external air to the outside of the inner container.

[0018] In some embodiments, the heat pump drying system comprises a first fan disposed in the first air duct component, the first fan being configured to form an air flow in the first air duct component from the first airflow section and / or the air inlet to the air outlet.

[0019] In some embodiments, the heat pump drying system comprises a second fan disposed in the second air duct component, the second fan being configured to form a circulating air flow between the inner container and the second air duct component.

[0020] In some embodiments, the heat pump drying system is configured to heat the air from the inner container by the condenser and return the air to the inner container.

[0021] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0023] Fig. 1 is a structural schematic diagram of a washing appliance according to some embodiments of the present application;

[0024] Fig. 2 is a structural schematic diagram of a washing appliance according to some embodiments of the present application;

[0025] Fig. 3 is a structural schematic diagram of a fin according to some embodiments of the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS: 1000 - washing appliance, 1100 - inner tub, 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 passage, 30 - condenser, 40 - first air blower, 41 - second air blower, 60 - compressor, 61 - pipeline, 71 - air inlet, 81 - air outlet, 90 - throttling device. DETAILED DESCRIPTION

[0027] Embodiments of the present application are described below in detail with reference to the accompanying drawings. In the description, identical or similar components are designated by the same reference numerals, and a repeated description of which is omitted. In describing the embodiments of the present application, the term "comprises" or "includes" means that there can be additional other components or steps. The term "comprises a" or "includes a" does not exclude the existence of additional one or more components or steps, and does not exclude the existence of the additional one or more components or steps before or after the disclosed component or step. The term "comprises a" or "includes a" indicates that there can be additional one or more components or steps.

[0028] In the description of embodiments of the present application, it is to be understood that the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are used only for the purpose of description, and do not indicate or imply a relative importance or an order of the indicated technical features. Thus, features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of embodiments of the present application, the term "plurality" means two or more, unless explicitly specifically limited otherwise.

[0029] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0030] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. The embodiments of the present application can refer to reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the embodiments of the present application provide examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0031] Please refer to FIG. 1, the present application provides a washing appliance 1000, comprising 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 comprises 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 constituting a closed refrigerant circuit, the first air duct component 100 and the second air duct component 200 are both communicated with 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, and the evaporator 20 is used for cooling the gas flowing out of the inner container 1100 and then discharging the gas to the outside of the inner container 1100, the condenser 30 is arranged in the second air duct component 200, and the condenser 30 is used for heating the gas flowing out of the inner container 1100 and then returning the gas to the inner container 1100.

[0032] In this way, the evaporator 20 can cool the gas flowing out of the inner container 1100 and then discharge the gas to the outside of the inner container 1100, reduce the generation of condensed water in the inner container 1100, thereby facilitating to improve the drying effect of the washing appliance 1000.

[0033] Specifically, the washing appliance 1000 is mainly used for washing various tableware, wherein the inner container 1100 can be used as the main structure of the washing appliance 1000, and the inner container 1100 is formed with a washing chamber 1101 having an opening, and the tableware and the like can be put into the washing chamber 1101 from the opening of the washing chamber 1101. The washing chamber 1101 can be provided with a bracket for carrying and fixing the tableware, and a water cup 1300 placed below the bracket. The water cup 1300 is used for collecting and discharging the water flow generated in the washing and condensation process. The washing appliance 1000 is, for example, a dishwasher.

[0034] The heat pump drying system 1200 is used for drying the wet hot air flowing out of the inner container 1100 and discharging the dried air, and for heating the wet hot air flowing out of the inner container 1100 and making the heated air flow into the inner container 1100 again, so as to achieve the effect of drying the tableware and the like. It should be pointed out that the above-mentioned dried air is relative to the wet hot air in the inner container 1100, and not refers to the air completely not containing water vapor.

[0035] The first air duct component 100 and the second air duct component 200 are independently arranged, which means that the first air duct component 100 and the second air duct component 200 are not connected in structure and do not affect each other in function, and the first air duct component 100 and the second air duct component 200 are independently installed and controlled.

[0036] The evaporator 20 is a heat exchanger in the heat pump drying system 1200. The evaporator 20 can refrigerate when the heat pump drying system 1200 works, so as to absorb the heat of the air around the evaporator 20, to reduce the temperature of the air around the evaporator 20, to make the gas flowing through the evaporator 20 condense to form condensed water, and to achieve the effect of drying the air.

[0037] The evaporator 20 is generally flat. The evaporator 20 can be placed vertically, or in other words, the thickness direction of the evaporator 20 is generally horizontally arranged, and the thickness direction of the evaporator 20 is generally parallel to the central axis of the first air duct component 100, so as to increase the contact area between the gas of the first air duct component 100 and the evaporator 20, which is beneficial to improve the effect of drying the air flowing through the evaporator 20.

[0038] The condenser 30 is also a heat exchanger in the heat pump drying system 1200. The condenser 30 can heat when the heat pump drying system 1200 works, so as to absorb the heat of the surrounding air, to increase the temperature of the surrounding air, to make the gas flowing through the condenser 30 enter the inner container 1100 of the washing appliance 1000 again, to achieve the effect of drying the tableware and the like.

[0039] The condenser 30 is substantially flat. The condenser 30 can be placed vertically, or in other words, the thickness direction of the condenser 30 is substantially 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 that the contact area of the gas in the second air duct component 200 with the condenser 30 is larger, which is beneficial to improve the effect of heating the air flowing through the condenser 30.

[0040] The condenser 30 and the evaporator 20 are communicated with the compressor 60 through the 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 washing appliance 1000, and the compressor 60, the condenser 30, the throttling device 90 and the evaporator 20 can be connected in sequence to form a closed refrigerant circuit, so that the refrigerant as the refrigerant can circulate in the closed refrigerant circuit formed by the compressor 60, the condenser 30, the throttling device 90 and the evaporator 20, and the four cooperate with each other to 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 works to pump the high-temperature and high-pressure refrigerant to the condenser 30 to heat the air, the refrigerant and the air complete heat exchange after flowing out of the condenser 30, and then flows into the evaporator 20 after being throttled by the throttling device 90 to become low-temperature and low-pressure refrigerant to exchange heat with the air and evaporate, and then returns to the compressor 60 to complete the entire heat pump heating cycle. The throttling device 90 can be an expansion valve, and further, the throttling device 90 can be an electronic expansion valve.

[0041] Please refer to FIG. 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 connected in sequence, the first air flow section 11 is communicated with the washing chamber 1101, and the end of the third air flow section 13 away from the second air flow section 12 is formed with an air outlet 81 communicated with the outside of the inner container 1100, the air outlet 81 is used to discharge the gas cooled by the evaporator 20 to the outside of the inner container 1100.

[0042] In this way, the gas from the inner container 1100 can be discharged to the outside of the inner container 1100 through the third air flow section 13 from the air outlet 81, reducing the generation of condensed water in the inner container 1100, thereby facilitating to improve the drying effect of the washing appliance 1000.

[0043] Specifically, the first airflow section 11, the second airflow section 12 and the third airflow section 13 can be tubular structures, and the cross-sectional shape can include but is not limited to regular shapes such as a circle, a rectangle, etc. or irregular shapes. The three airflow sections can be integrally formed structures or detachable structures. For example, the first airflow section 11 and the second airflow section 12 are integrally formed, and the second airflow section 12 and the third airflow section 13 are fixedly connected by threads, welding, etc. One end of the first airflow section 11 is in communication with the washing chamber 1101, and the other end is in communication between the two end portions of the second airflow section 12. One end of the third airflow section 13 is in communication with one end of the second airflow section 12, and the other end forms an air outlet 81. In order to facilitate the manufacture and formation of the air outlet 81, the shape of the air outlet 81 can be consistent with the cross-sectional shape of the third airflow section 13.

[0044] Referring to FIG. 1, in some embodiments, the end portion of the second airflow section 12 away from the third airflow section 13 forms an air inlet 71 in communication with the outside of the inner container 1100, and the air inlet 71 is used to introduce external gas into the second airflow section 12.

[0045] In this way, the external gas can be drawn in through the air inlet 71 to dissipate heat from the evaporator 20, so that the evaporator 20 can maintain a normal working state.

[0046] Specifically, in order to facilitate the manufacture and formation of the air inlet 71, the shape of the air inlet 71 can be consistent with the cross-sectional shape of the second airflow section 12.

[0047] Referring to FIG. 2, in some embodiments, the evaporator 20 is arranged in the third airflow section 13, and the first air duct component 100 further includes a fourth airflow section 14, both ends of the fourth airflow section 14 are in communication with the outside of the inner container 1100 and the third airflow section 13, and the fourth airflow section 14 is located downstream of the evaporator 20.

[0048] In this way, the external gas can enter the third airflow section 13 through the fourth airflow section 14 to mix with the gas from the inner container 1100, thereby achieving the effect of further reducing the condensed water while dehumidifying.

[0049] Specifically, one end of the fourth airflow section 14 is in communication with the evaporator 20 and the air outlet 81 of the third airflow section 13, and the other end forms an air vent. The external air enters the fourth airflow section 14 from the air vent, and the gas from the inner container 1100 after being cooled by the evaporator 20 is mixed in the third airflow section 13 and then discharged to the outside from the air outlet 81. The fourth airflow section 14 can be provided with a valve, and the valve is used to adjust the air flow of the external gas flowing from the air vent to the third airflow 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 the condensed water after dehumidifying.

[0050] Referring to FIG. 1 and FIG. 2, in some embodiments, the heat pump drying system 1200 comprises a valve 15 arranged at the first airflow section 11, the valve 15 being configured to adjust the airflow from the inlet 71 and the first airflow section 11 to the second airflow section 12.

[0051] In this way, by adjusting the airflow from the inlet 71 and the first airflow section 11 to the second airflow section 12, the proportion of the gas from the inner container 1100 and the external gas can be flexibly controlled, so as to achieve the effect of reducing the condensate water before dehumidification.

[0052] Specifically, the valve 15 can rotate relative to the first airflow section 11 between a first position and a second position. When the valve 15 is in the first position, the valve 15 abuts against the side wall of the first airflow section 11, the valve 15 blocks the first airflow section 11 and the second airflow section 12 and connects the inlet 71 and the second airflow section 12. When the valve 15 is in the second position, the valve 15 abuts against the side wall of the second airflow section 12, the valve 15 connects the first airflow section 11 and the second airflow section 12 and blocks the inlet 71 and the second airflow section 12. By controlling the rotation angle of the valve 15, the opening degree of the connection between the first airflow section 11 and the second airflow section 12 and the opening degree of the connection between the inlet 71 and the second airflow section 12 can be adjusted, so as to adjust the airflow from the first airflow section 11 to the second airflow section 12 and the airflow from the inlet 71 to the second airflow section 12.

[0053] The valve 15 can be controlled by a driving mechanism to control the rotation angle of the valve 15. The valve 15 can be arranged at the intersection of the first airflow section 11 and the second airflow section 12.

[0054] In some embodiments, when the valve 15 opens the inlet 71 and blocks the connection between the first airflow section 11 and the second airflow section 12, the heat pump drying system 1200 is configured to discharge the external gas from the outlet 81 after the external gas exchanges heat with the evaporator 20. In this way, during the washing stage, the external gas can discharge the heat of the evaporator 20, so as to heat the evaporator 20 and keep the evaporator 20 in a normal working state.

[0055] Specifically, when the valve 15 is in the first position, the connection between the first airflow section 11 and the second airflow section 12 is disconnected, and the opening degree of the connection between the external gas and the second airflow section 12 is the largest, the airflow from the inlet 71 to the second airflow section 12 is the largest, and the gas in the second airflow section 12 is all from the outside.

[0056] 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 discharge the air flowing out of the inner container 1100 to the outside of the inner container 1100 from the air outlet 81 after the air is cooled and dehumidified by the evaporator 20. In this way, the humidity in the inner container 1100 can be discharged in the early stage of the drying phase, and the generation of condensed water in the inner container 1100 can be reduced, thereby facilitating the improvement of the drying effect of the washing appliance 1000.

[0057] Specifically, when the valve 15 is in the second position, the connection between the external air 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 from the first air flow section 11 to the second air flow section 12 is the largest, and all the air in the second air flow section 12 comes from the inner container 1100.

[0058] 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 discharge the air flowing out of the inner container 1100 to the outside of the inner container 1100 from the air outlet 81 after the air is mixed with the external air. In this way, the cooling and dehumidification of the air flowing out of the inner container 1100 can be accelerated in the late stage of the drying phase, thereby achieving the effect of reducing the condensed water before dehumidification.

[0059] Specifically, when the valve 15 is between the first position and the second position, the external air is connected to the second air flow section 12 and the first air flow section 11 and the second air flow section 12, part of the air in the second air flow section 12 comes from the inner container 1100, and part of the air in the second air flow section 12 comes from the outside. The external air and the air flowing out of the inner container 1100 flow to the second air flow section 12 at the same time.

[0060] Referring to FIGS. 1 and 2, in some embodiments, the heat pump drying system 1200 includes a first fan 40 arranged in the first air duct component 100, and the first fan 40 is configured to form an air flow in the first air duct component 100 from the first air flow section 11 and / or the air inlet 71 to the air outlet 81.

[0061] In this way, the first fan 40 can provide power for the air flow in the first air duct component 100, improve the flow speed of the air in the first air duct component 100, and further enhance the drying effect of the heat pump drying system 1200.

[0062] Specifically, the first fan 40 can be an axial fan or a centrifugal fan. When the first fan 40 operates, a negative pressure is formed in the first air duct component 100, so that the air flows along the path of the inner container 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.

[0063] Referring to FIGS. 1 and 2, in some embodiments, the heat pump drying system 1200 comprises a second air fan 41 arranged in the second air duct component 200, the second air fan 41 is configured to form a circulating air flow between the inner container 1100 and the second air duct component 200, and the heat pump drying system 1200 is configured to return the air flowing out of the inner container 1100 to the inner container 1100 after being heated by the condenser 30.

[0064] In this way, the second air fan 41 can provide power for the gas flow in the second air duct component 200, increase the flow speed of the gas in the second air duct component 200, and further enhance the drying effect of the heat pump drying system 1200.

[0065] Specifically, the second air fan 41 can be an axial fan or a centrifugal fan. When the second air fan 41 is running, a negative pressure is formed in the second air duct component 200, so that the gas circulates along the path of the inner container 1100-second air duct component 200.

[0066] Referring to FIGS. 1 and 2, in some embodiments, the two end portions of the second air duct component 200 are connected to the same side wall 1102 of the inner container 1100. In this way, it is beneficial for the assembly of the inner container 1100 and other components, reduces the interference between the inner container 1100 and the surrounding components, and has a simple structure.

[0067] Specifically, the two end portions of the second air duct component 200 can be connected to the left side wall 1102, the right side wall 1102 or the back side wall 1102 of the inner container 1100, and the two end portions 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 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 back side wall 1102 of the inner container 1100, and the other end is connected to the right end of the back side wall 1102 of the inner container 1100; for another example, one end of the second air duct component 200 is connected to the upper left end of the back side wall 1102 of the inner container 1100, and the other end is connected to the lower right end of the back side wall 1102 of the inner container 1100.

[0068] The two end portions of the second air duct component 200 and the two end portions 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 end portions of the second air duct component 200 can be connected to the left side wall 1102, and the two end portions of the first air duct component 100 can be connected to the right side wall 1102.

[0069] Please refer to FIG. 1-3, in some embodiments, the evaporator 20 and / or the condenser 30 each comprises a plurality of fins 21, and airflow channels 22 are formed between the plurality of fins 21, and the airflow direction of the airflow channels 22 is consistent with the airflow direction of the corresponding air duct component.

[0070] 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 the heat exchange efficiency is improved.

[0071] Specifically, the evaporator 20 can be provided with a plurality of fins 21, or the condenser 30 can be provided with a plurality of fins 21, or both the evaporator 20 and the condenser 30 can be provided with a plurality of fins 21. The plurality of fins 21 are arranged in a spaced manner along a direction perpendicular to the airflow direction of the corresponding air duct component, and the temperature of the refrigerant is reduced to below the ambient temperature after being controlled by the throttling device 90. Therefore, when the air flow entering the evaporator 20 has a high humidity, the water vapor in the air flow is easy to condense on the evaporator 20 to form condensed water, and flow down through the airflow channels 22.

[0072] The shape of the fin 21 can be a square sheet shape, and the material of the fin 21 can be a metal material with high thermal conductivity, such as copper. It can be understood that the shape of the fin 21 can also be other shapes, which are not limited in particular.

[0073] 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.

[0074] 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 air duct component, and further reduce the area occupied by the air duct component on the heat pump drying system 1200, so as to make the structure of the washing appliance 1000 compact.

[0075] Specifically, the width direction of the fin 21 is the airflow direction of the corresponding air 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.

[0076] In summary, please refer to FIG. 1, in one embodiment, when the washing appliance 1000 enters the washing mode, the first air fan 40 is started, the valve 15 opens the air inlet 71 and disconnects the communication between the first airflow section 11 and the second airflow section 12, and the external air enters the first air duct component 100 through the air inlet 71, flows through the second airflow section 12 and the third airflow section 13, and is discharged from the air outlet 81 after dissipating heat on the evaporator 20.

[0077] When the washing appliance 1000 enters the early stage of the drying mode after the washing is completed, the first fan 40 and the second fan 41 are started, the valve 15 closes the air inlet 71 and connects the first airflow section 11 and the second airflow section 12, a part of the gas from the inner tub 1100 flows to the third airflow section 13 through the first airflow section 11 and the second airflow section 12, is cooled and dehumidified by the evaporator 20, and is discharged to the outside from the air outlet 81, and another part of the gas from the inner tub 1100 enters the second air duct part 200, is heated by the condenser 30, and flows into the inner tub 1100 again.

[0078] When the washing appliance 1000 enters the late stage of the drying mode after the washing is completed, the first fan 40 and the second fan 41 are started, the valve 15 opens the air inlet 71 and connects the first airflow section 11 and the second airflow section 12, a part of the gas from the inner tub 1100 mixes with the air outside in the second airflow section 12, is cooled and dehumidified by the evaporator 20, and is discharged to the outside from the air outlet 81, and another part of the gas from the inner tub 1100 enters the second air duct part 200, is heated by the condenser 30, and flows into the inner tub 1100 again.

[0079] Please refer to FIG. 2, in another embodiment, when the washing appliance 1000 enters the late stage of the drying mode after the washing is completed, the first fan 40 and the second fan 41 are started, the valve 15 closes the air inlet 71 and connects the first airflow section 11 and the second airflow section 12, the air outside enters the third airflow section 13 through the fourth airflow section 14, a part of the gas from the inner tub 1100 flows to the third airflow section 13 through the first airflow section 11 and the second airflow section 12, is cooled and dehumidified by the evaporator 20, mixes with the air outside, and is discharged to the outside from the air outlet 81, and another part of the gas from the inner tub 1100 enters the second air duct part 200, is heated by the condenser 30, and flows into the inner tub 1100 again.

[0080] In the description of the present specification, the description of the terms "one embodiment", "some embodiments”, "certain embodiments”, "an example”, "a specific example” or "some examples” etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A washing appliance characterised in that, The application relates to a heat pump drying system for a washing machine. The heat pump drying system comprises a first air duct component and a second air duct component, a compressor, a condenser, a throttling device and an evaporator, which 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 used for cooling the gas flowing out of the washing chamber and then discharging the gas to the outside of the washing chamber, and the condenser is arranged in the second air duct component and used for heating the gas flowing out of the washing chamber and then returning the gas to the washing chamber. The first air duct component is formed with a first air flow section, a second air flow section and a third air flow section which are sequentially connected, the first air flow section is connected to the washing chamber, the third air flow section is formed with an air outlet at the end far from the second air flow section, the air outlet is used for discharging the gas cooled by the evaporator to the outside of the washing chamber.

2. The washing appliance according to claim 1, characterized in that, The second air flow section is formed with an air inlet at the end far from the third air flow section, the air inlet is used for introducing the external gas into the second air flow section.

3. 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 comprises 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 outside of the washing chamber, and the fourth air flow section is located downstream of the evaporator.

4. The laundry appliance according to claim 2 or 3, characterized in that, The heat pump drying system comprises a valve arranged in the first air flow section, the valve is used for adjusting the air flow from the air inlet and the first air flow section to the second air flow section.

5. The washing appliance according to claim 3, characterized in that, When the valve opens the air inlet and blocks 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 the gas from the air outlet.

6. The washing appliance according to claim 5, characterized in that, 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 washing chamber through the evaporator and then discharge the air from the air outlet to the outside of the washing chamber.

7. The laundry appliance according to claim 5 or 6, characterized in that, 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 washing chamber with the external gas and then discharge the mixed gas from the air outlet to the outside of the washing chamber.

8. The washing appliance according to any one of claims 5-7, characterized in that, The heat pump drying system comprises a first air fan arranged in the first air duct component, the first air fan is used for forming 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.

9. The washing appliance according to claim 3, characterized in that, The heat pump drying system comprises a second air fan arranged in the second air duct component, the second air fan is used for forming a circulating air flow between the washing chamber and the second air duct component, and the heat pump drying system is configured to heat the air flowing out of the washing chamber through the condenser and then return the air to the washing chamber.

10. The washing appliance according to any of the claims from 1 to 9, characterized by the fact that, ​

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