Washing electric appliance

Abstract

The washing electric appliance comprises an inner container and a heat pump drying system, the inner container is provided with a washing cavity, and an air inlet and an air outlet are formed in the inner container; the heat pump drying system comprises an air duct component, a compressor, a condenser, a throttling device and an evaporator, the compressor, the condenser, the throttling device and the evaporator are sequentially connected to form a closed refrigerant loop, one end of the air duct component is communicated with the washing cavity through an air outlet, and the other end of the air duct component is communicated with the washing cavity through an air inlet. The evaporator is used for cooling gas flowing out of the inner container, the condenser is used for heating gas flowing into the inner container, the air duct component is provided with a discharge port, the discharge port is located at the downstream of the evaporator in the flow guide direction of the air duct component, and the discharge port can be communicated with the external environment of the air duct component. Therefore, the air can be discharged from the discharge port after being cooled and dehumidified by the evaporator, the air humidity is reduced, the temperature of the air heated by the condenser is increased, and the drying effect of the washing electric appliance is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a washing appliance. Background Art

[0002] In the related art, a washing machine includes an inner tank and a heat pump drying system, and the washing machine has a drying mode for drying dishes. However, when the washing machine is drying, the drying effect of the heat pump drying system needs to be further improved. Utility Model Content

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

[0004] The present application provides a washing appliance, comprising:

[0005] An inner tank is provided with a washing chamber, and the inner tank is formed with an air inlet and an air outlet;

[0006] A heat pump drying system, the heat pump drying system includes an air duct component, a compressor, a condenser, a throttling device and an evaporator connected in sequence to form a closed refrigerant circuit, one end of the air duct component is connected to the washing chamber through the air outlet, and the other end is connected to the washing chamber through the air inlet, the evaporator and the condenser are both arranged in the air duct component, the evaporator is used to cool the gas flowing out of the inner tank, and the condenser is used to heat the gas flowing into the inner tank, wherein the air duct component is provided with a discharge port, and along the guide direction of the air duct component, the discharge port is located downstream of the evaporator, and the discharge port can be connected to the external environment of the air duct component.

[0007] In this way, the air duct component can be connected to the external environment through the discharge port, so that the hot and humid air in the air duct component can be discharged from the discharge port after being cooled and dehumidified by the evaporator, thereby reducing the humidity of the air in the air duct component and increasing the temperature of the air heated by the condenser, which is beneficial to improving the drying effect of the washing appliance.

[0008] In some embodiments, the air duct component is formed with a guide channel, both ends of which are connected to the washing chamber, the evaporator and the condenser are arranged in the same guide channel, along the guide direction of the guide channel, the evaporator is located upstream of the condenser, and a first valve is movably provided at the discharge port, and the first valve can open and close the discharge port to connect or isolate the guide channel from the external environment.

[0009] In some embodiments, when the first valve blocks the diversion channel from the external environment, the heat pump drying system is configured to first cool and dehumidify the air flowing out of the inner tank by the evaporator, and then heat it by the condenser and return it to the inner tank.

[0010] In some embodiments, when the first valve connects the guide channel with the external environment, 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 external environment through the discharge port.

[0011] In some embodiments, the guide channel includes a first channel, a second channel, a third channel and a fourth channel, the first channel, the second channel and the third channel are connected in sequence, the end of the first channel away from the second channel is connected to the washing chamber, the end of the third channel away from the second channel is connected to the washing chamber, the fourth channel is arranged parallel to the second channel and connects the first channel and the third channel, the evaporator is located in the fourth channel, and the condenser is located in the third channel.

[0012] In some embodiments, the exhaust port is provided at the connection between the fourth channel and the third channel, and the first valve selectively blocks or connects the fourth channel and the third channel.

[0013] When the first valve opens the discharge port, it can block the fourth channel and the third channel;

[0014] When the first valve closes the discharge port, the fourth passage and the third passage can be communicated.

[0015] In some embodiments, the air duct component further includes a second valve, which is disposed at the connection between the fourth channel and the first channel, and the second valve is capable of adjusting the opening of the fourth channel and the second channel connected to the first channel respectively.

[0016] In certain embodiments, when the first valve connects the fourth channel and the third channel, and the second valve connects the fourth channel and the first channel and blocks the second channel and the first channel, the heat pump drying system is configured to first cool and dehumidify the air flowing out of the inner tank by the evaporator, and then heat it by the condenser and return it to the inner tank.

[0017] In some embodiments, when the first valve blocks the fourth channel and the third channel, and the second valve connects the fourth channel and the first channel and blocks the second channel and the first channel, the heat pump drying system is configured to cool and dehumidify the air flowing out of the inner tank by the evaporator and then discharge it to the external environment through the exhaust port.

[0018] In certain embodiments, when the second valve blocks the fourth channel and the first channel and connects the second channel and the first channel, the heat pump drying system is configured to heat the air flowing out of the inner tank by the condenser and then return it to the inner tank.

[0019] In some embodiments, when the first valve blocks the fourth channel and the third channel, and the second valve connects the fourth channel and the first channel and the second channel and the first channel, the heat pump drying system is configured to cool and dehumidify part of the air flowing out of the inner tank by the evaporator and then discharge it to the external environment from the exhaust port, and heat part of the air by the condenser and return it to the inner tank.

[0020] In some embodiments, the air duct component includes an air duct housing, an air inlet pipe and an exhaust pipe, the air inlet pipe and the exhaust pipe are both detachably connected to the air duct housing, the air inlet pipe and the exhaust pipe are both connected to the inner tank, the evaporator and the condenser are spaced apart in the air duct housing, and the air duct housing is formed with the discharge port.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a schematic structural diagram of a washing appliance according to certain embodiments of the present application;

[0024] Figure 2 is a schematic structural diagram of a washing appliance according to certain embodiments of the present application;

[0025] Figure 3 is a schematic structural diagram of a washing appliance according to certain embodiments of the present application;

[0026] Figure 4 It is a three-dimensional schematic diagram of a heat pump system according to certain embodiments of the present application.

[0027] Description of reference numerals:

[0028] 1000-washing appliance, 1100-inner tank, 1110-washing chamber, 1120-air inlet, 1130-air outlet, 1200-heat pump drying system, 1300-water cup, 110-air duct components, 10-air duct housing, 11-guide channel, 113-first channel, 114-second channel, 115-third channel, 116-fourth channel, 16-discharge port, 17-first valve, 18-second valve, 20-evaporator, 30-condenser, 40-fan, 60-compressor, 61-pipeline, 70-inlet pipe, 80-exhaust pipe, 90-throttling device. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and should not be understood as limiting the embodiments of the present application.

[0030] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified or limited, the terms "installation," "connection," and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal connectivity between two components or the interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0032] In the embodiments of the present application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples for realizing 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 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 numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself 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 will appreciate the application of other processes and / or the use of other materials.

[0034] See also Figure 1 The washing appliance 1000 of the embodiment of the present application includes an inner tank 1100 and a heat pump drying system 1200. The inner tank 1100 is provided with a washing chamber 1110, and is formed with an air inlet 1120 and an air outlet 1130. The heat pump drying system 1200 includes an air duct component 110, a compressor 60, a condenser 30, a throttling device 90, and an evaporator 20 connected in sequence to form a closed refrigerant circuit. One end of the air duct component 110 is connected to the washing chamber 1110 through the air outlet 1130. The other end is connected to the washing chamber 1110 through the air inlet 1120. The evaporator 20 and the condenser 30 are both arranged in the air duct component 110. The evaporator 20 is used to cool the gas flowing out of the inner tank 1100, and the condenser 30 is used to heat the gas flowing into the inner tank 1100. The air duct component 110 is provided with an exhaust port 16. Along the guide direction of the air duct component 110, the exhaust port 16 is located downstream of the evaporator 20, and the exhaust port 16 can be connected to the external environment of the air duct component 110.

[0035] In this way, the air duct component 110 can be connected to the external environment through the discharge port 16, so that the hot and humid air in the air duct component 110 can be discharged from the discharge port 16 after being cooled and dehumidified by the evaporator 20, thereby reducing the humidity of the air in the air duct component 110 and increasing the temperature of the air heated by the condenser 30, which is beneficial to improving the drying effect of the washing appliance 1000.

[0036] Specifically, washing appliance 1000 is primarily used for washing various types of tableware. An inner tank 1100 serves as the main structure of washing appliance 1000, while a washing chamber 1110 is used for actually washing items. Washing chamber 1110 may be provided with a tray for holding and securing tableware, and a water cup 1300 positioned beneath the tray. Water cup 1300 is used to collect and contain water generated during the washing process. For example, washing appliance 1000 is a dishwasher.

[0037] The inner liner 1100 may be formed with at least one air inlet 1120 and at least one air outlet 1130, and the air inlet 1120 and the air outlet 1130 may penetrate the side wall of the inner liner 1100 along the wall thickness direction of the inner liner 1100. The air inlet 1120 and the air outlet 1130 may be located on different side walls of the inner liner 1100, or may be located on the same side wall of the inner liner 1100.

[0038] Heat pump drying system 1200 is used to dry the hot and humid air flowing out of inner container 1100 and heat the dried air, allowing the heated, dry air to flow back into inner container 1100. This cycle continues, achieving the effect of drying dishes and other objects. It should be noted that the dried air mentioned above refers to the hot and humid air in inner container 1100, and does not mean that the air is completely free of moisture.

[0039] The evaporator 20 is a heat exchanger in the heat pump drying system 1200. When the heat pump drying system 1200 is operating, the evaporator 20 generates cooling energy, thereby absorbing heat from the air surrounding the evaporator 20 to lower the temperature of the surrounding air. This allows the gas flowing through the evaporator 20 to condense into condensed water, thereby drying the air.

[0040] The evaporator 20 is generally flat and can be placed vertically, or in other words, the thickness of the evaporator 20 is arranged generally horizontally. The thickness of the evaporator 20 is generally parallel to the central axis of the guide channel 11, so that the contact area between the gas in the guide channel 11 and the evaporator 20 is increased, which is conducive to improving the drying effect of the air flowing through the evaporator 20.

[0041] The condenser 30 is also a heat exchanger in the heat pump drying system 1200. When the heat pump drying system 1200 is operating, the condenser 30 generates heat, thereby absorbing heat from the surrounding air to raise the temperature of the surrounding air. This allows the air flowing through the condenser 30 to re-enter the inner tank 1100 of the washing appliance 1000, thereby drying items such as dishes.

[0042] The condenser 30 is generally flat and can be placed vertically, or in other words, the thickness of the condenser 30 is arranged generally horizontally. The thickness of the condenser 30 is generally parallel to the central axis of the guide channel 11, so that the contact area between the gas in the guide channel 11 and the condenser 30 is increased, which is conducive to improving the heating effect of the air flowing through the condenser 30.

[0043] The condenser 30 and the evaporator 20 can be connected to the compressor 60 via a pipe 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. They are connected in sequence to form a closed refrigerant circuit, allowing the refrigerant, serving as a refrigerant, to circulate in the sealed refrigerant circuit formed by the compressor 60, the condenser 30, the throttling device 90, and the evaporator 20. The four components work together to enable the heat pump drying system 1200 to achieve the effect of drying objects such as dishes. When the heat pump drying system 1200 is in the drying phase, the compressor 60 operates, pumping high-temperature, high-pressure refrigerant to the condenser 30 to heat the air. After the refrigerant and the air complete heat exchange, they flow out of the condenser 30, are throttled by the throttling device 90, and then become low-temperature, low-pressure refrigerant before flowing into the evaporator 20 to exchange heat with the air and evaporate. The refrigerant then returns to the compressor 60 to complete the entire heat pump heating cycle. The dried air is heated by the condenser 30 and then reenters the inner tank 1100 of the washing appliance 1000. The throttling device 90 may be an expansion valve, and further, the throttling device 90 may be an electronic expansion valve.

[0044] The discharge port 16 can achieve a ventilation effect, allowing the gas in the air duct component 110 to be discharged from the discharge port 16 to the external environment, thereby reducing the humidity of the air in the washing appliance 1000. The discharge port 16 can be a through hole provided at the bottom of the air duct component 110. The shape of the discharge port 16 can be regular shapes such as rectangle, circle, oval, or irregular, and this application does not make any specific restrictions.

[0045] See also Figure 1 In some embodiments, the air duct component 110 is formed with a guide channel 11, both ends of the guide channel 11 are connected to the washing chamber 1110, the evaporator 20 and the condenser 30 are arranged in the same guide channel 11, and along the guide direction of the guide channel 11, the evaporator 20 is located upstream of the condenser 30.

[0046] In this way, 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 1200 to dry items such as tableware.

[0047] Specifically, the guide channel 11 formed by the air duct component 110 is used to achieve a ventilation effect, so that air can circulate between the inner tank 1100 of the washing appliance 1000 and the guide channel 11, thereby achieving the effect of drying items such as dishes. The guide channel 11 can be configured into a curved shape or other shapes to meet the flow requirements of the airflow. The cross-sectional area of each position of the guide channel 11 can be different. For example, the cross-sectional area of the guide channel 11 at the position used to accommodate the evaporator 20 and the condenser 30 is larger, and the cross-sectional area at other positions is smaller.

[0048] See also Figure 1 and Figure 2 In some embodiments, a first valve 17 is movably provided at the discharge port 16 , and the first valve 17 can open and close the discharge port 16 to connect or isolate the diversion channel 11 from the external environment.

[0049] In this way, the first valve 17 can control the opening and closing of the guide channel 11 and the external environment, thereby controlling the flow direction of the air, so that the air flows to the external environment or flows to the inner container 1100 for recycling.

[0050] Specifically, the first valve 17 can rotate relative to the guide channel 11 to switch between a first position and a second position. When the first valve 17 is in the first position, the first valve 17 completely closes the discharge port 16, and the air in the guide channel 11 flows to the inner liner 1100; when the first valve 17 is in the second position, the first valve 17 completely opens the discharge port 16, and the air in the guide channel 11 flows from the discharge port 16 to the outside.

[0051] In some embodiments, the first valve 17 rotates toward the inside of the diversion channel 11 to reduce interference between the first valve 17 and components outside the diversion channel 11 .

[0052] In some embodiments, when the first valve 17 blocks the diversion channel 11 from the external environment, 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 and return it to the inner tank 1100.

[0053] In this way, the humidity of the gas is higher in the initial stage of drying, which can prevent the gas from being discharged and causing condensation in the cabinet and its surroundings, reduce bacterial growth, and thus improve the cleanliness of the environment.

[0054] Specifically, the first valve 17 is in the first position, completely closing the discharge port 16, blocking the guide channel 11 from the external environment, and connecting the evaporator 20 and the condenser 30, so that the air flowing out of the inner tank 1100 is cooled and dehumidified by the evaporator 20, and then all heated by the condenser 30 and returned to the inner tank 1100.

[0055] In some embodiments, when the first valve 17 connects the guide channel 11 with the external environment, 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 to the external environment through the discharge port 16.

[0056] In this way, in the later stage of drying, the humidity of the air in the guide channel 11 can be reduced, the temperature of the air heated by the condenser 30 can be increased, and the drying rate can be accelerated, thereby improving the drying effect of the washing appliance 1000.

[0057] Specifically, the first valve 17 is in the second position, fully opening the discharge port 16, connecting the guide channel 11 with the external environment and the evaporator 20 and the condenser 30, so that the air flowing out of the inner tank 1100 is cooled and dehumidified by the evaporator 20, and part of it is discharged to the external environment from the discharge port 16, and part of it is heated by the condenser 30 and returned to the inner tank 1100.

[0058] See also Figure 3 In some embodiments, the guide channel 11 includes a first channel 113, a second channel 114, a third channel 115 and a fourth channel 116. The first channel 113, the second channel 114 and the third channel 115 are connected in sequence. The end of the first channel 113 away from the second channel 114 is connected to the washing chamber 1110, and the end of the third channel 115 away from the second channel 114 is connected to the washing chamber 1110. The fourth channel 116 is arranged parallel to the second channel 114 and connects the first channel 113 and the third channel 115. The evaporator 20 is located in the fourth channel 116, and the condenser 30 is located in the third channel 115.

[0059] In this way, the air flowing out of the inner tank 1100 can enter the fourth channel 116, be discharged to the external environment after being cooled and dehumidified by the evaporator 20, or enter the third channel 115, be heated by the condenser 30 and return to the inner tank 1100.

[0060] Specifically, the first channel 113, the second channel 114, the third channel 115, and the fourth channel 116 can be integrally formed or can be separably detachable. For example, the first channel 113, the second channel 114, the third channel 115, and the fourth channel 116 can be integrally formed or can be fixedly connected by threads, welding, or the like.

[0061] One end of the first channel 113 away from the second channel 114 may communicate with the washing chamber 1110 through the air outlet 1130 , and one end of the third channel 115 away from the second channel 114 may communicate with the washing chamber 1110 through the air inlet 1120 .

[0062] The discharge port 16 may be provided on the fourth channel 116 or at the connection between the fourth channel 116 and the third channel 115 .

[0063] See also Figure 3 In some embodiments, the discharge port 16 is arranged at the connection between the fourth channel 116 and the third channel 115, and the first valve 17 selectively blocks or connects the fourth channel 116 and the third channel 115. When the first valve 17 opens the discharge port 16, it can block the fourth channel 116 and the third channel 115; when the first valve 17 closes the discharge port 16, it can connect the fourth channel 116 and the third channel 115.

[0064] In this way, the air cooled and dehumidified by the evaporator 20 can be discharged from the exhaust port 16 to the outside environment, or it can enter the third channel 115, be heated by the condenser 30, and then return to the inner tank 1100. The four channels can form three air flow paths, facilitating the selection of different paths at different drying stages, thereby improving the drying effect of the washing appliance 1000.

[0065] Specifically, in some embodiments, the air from the first channel 113 can enter the third channel 115 through the second channel 114, and enter the washing chamber 1110 after being heated by the condenser 30; when the first valve 17 opens the discharge port 16, the air from the first channel 113 can enter the fourth channel 116, and be discharged from the discharge port 16 after being cooled and dehumidified by the evaporator 20; when the first valve 17 closes the discharge port 16, the air from the first channel 113 can enter the fourth channel 116, and enter the third channel 115 after being cooled and dehumidified by the evaporator 20, and enter the washing chamber 1110 after being heated by the condenser 30.

[0066] See also Figure 3 In some embodiments, the air duct component 110 further includes a second valve 18, which is disposed at the connection between the fourth channel 116 and the first channel 113. The second valve 18 can adjust the opening of the fourth channel 116 and the second channel 114 connected to the first channel 113 respectively.

[0067] In this way, the flow of air from the first channel 113 into the fourth channel 116 and the second channel 114 can be controlled by adjusting the opening of the fourth channel 116 and the second channel 114 respectively connected to the first channel 113 through the second valve 18.

[0068] Specifically, the second valve 18 can rotate between a third position and a fourth position relative to the fourth channel 116 or the second channel 114. When the second valve 18 is in the third position, the second valve 18 abuts against the side wall of the fourth channel 116, the second valve 18 blocks the fourth channel 116 and the first channel 113 and connects the second channel 114 and the first channel 113; when the second valve 18 is in the fourth position, the second valve 18 abuts against the side wall of the second channel 114, the second valve 18 connects the fourth channel 116 and the first channel 113 and blocks the second channel 114 and the first channel 113.

[0069] When the second valve 18 rotates away from the fourth channel 116, that is, the second valve 18 rotates toward the second channel 114 and does not abut against the side wall of the second channel 114, the opening of the fourth channel 116 and the first channel 113 is relatively large, and most of the air from the first channel 113 can enter the fourth channel 116 and be cooled and dehumidified by the evaporator 20, and a small part of the air can enter the second channel 114 and enter the washing chamber 1110 through the third channel 115; when the second valve 18 rotates away from the second channel 114, that is, the second valve 18 rotates toward the fourth channel 116 and does not abut against the side wall of the fourth channel 116, the opening of the second channel 114 and the first channel 113 is relatively large, and most of the air from the first channel 113 can enter the second channel 114 and enter the washing chamber 1110 through the third channel 115, and a small part of the air can enter the fourth channel 116 and be cooled and dehumidified by the evaporator 20.

[0070] In some embodiments, when the first valve 17 connects the fourth channel 116 and the third channel 115, and the second valve 18 connects the fourth channel 116 and the first channel 113 and blocks the second channel 114 and the first channel 113, 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 and return it to the inner tank 1100.

[0071] In this way, the humidity of the gas is higher in the initial stage of drying, which can prevent the gas from being discharged and causing condensation in the cabinet and its surroundings, reduce bacterial growth, and thus improve the cleanliness of the environment.

[0072] Specifically, the first valve 17 is in the first position, completely closing the discharge port 16, and the second valve 18 is in the fourth position, so that the air flowing out of the inner tank 1100 passes through the first channel 113 and enters the fourth channel 116. After being cooled and dehumidified by the evaporator 20, it enters the third channel 115, is heated by the condenser 30, and then returns to the inner tank 1100.

[0073] In some embodiments, when the first valve 17 blocks the fourth channel 116 and the third channel 115, and the second valve 18 connects the fourth channel 116 and the first channel 113 and blocks the second channel 114 and the first channel 113, 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 to the external environment through the exhaust port 16.

[0074] In this way, the humidity of the exhausted air can be reduced in the middle of the drying process, reducing the condensation generated by the air in the kitchen environment.

[0075] Specifically, the first valve 17 is in the second position, fully opening the discharge port 16, and the second valve 18 is in the fourth position, so that the air flowing out of the inner tank 1100 passes through the first channel 113 and enters the fourth channel 116. After being cooled and dehumidified by the evaporator 20, it is discharged from the discharge port 16 to the external environment.

[0076] In some embodiments, when the second valve 18 blocks the fourth channel 116 and the first channel 113 and connects the second channel 114 and the first channel 113 , the heat pump drying system 1200 is configured to heat the air flowing out of the inner tank 1100 by the condenser 30 and return it to the inner tank 1100 .

[0077] In this way, in the middle and late stages of drying, the temperature of the air entering the inner tank 1100 can be increased, and the drying rate can be accelerated, which is beneficial to improving the drying effect of the washing appliance 1000.

[0078] Specifically, the second valve 18 is in the third position, so that the air flowing out of the inner tank 1100 passes through the first channel 113 and enters the second channel 114 and then the third channel 115 , and returns to the inner tank 1100 after being heated by the condenser 30 .

[0079] In some embodiments, when the first valve 17 blocks the fourth channel 116 and the third channel 115, and the second valve 18 connects the fourth channel 116 and the first channel 113 and the second channel 114 and the first channel 113, the heat pump drying system 1200 is configured to cool and dehumidify part of the air flowing out of the inner tank 1100 by the evaporator 20 and then discharge it to the external environment from the exhaust port 16, and part of the air is heated by the condenser 30 and then returns to the inner tank 1100.

[0080] In this way, in the later stage of drying, the humidity of the air in the guide channel 11 can be reduced, the temperature of the air heated by the condenser 30 can be increased, and the drying rate can be accelerated, thereby improving the drying effect of the washing appliance 1000.

[0081] Specifically, the first valve 17 is in the second position, fully opening the discharge port 16, and the second valve 18 is between the third position and the fourth position, so that the air flowing out of the inner tank 1100 partially enters the fourth channel 116 through the first channel 113, is cooled and dehumidified by the evaporator 20, and is discharged from the discharge port 16 to the external environment, and partially enters the second channel 114 and then the third channel 115, and returns to the inner tank 1100 after being heated by the condenser 30.

[0082] See also Figure 1 and Figure 4 In some embodiments, the air duct component 110 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 detachably connected to the air duct housing 10. The air inlet pipe 70 and the exhaust pipe 80 are both connected to the inner tank 1100. The evaporator 20 and the condenser 30 are spaced apart in the air duct housing 10. The air duct housing 10 is formed with a discharge port 16.

[0083] In this way, the air inlet pipe 70 can direct the gas in the inner container 1100 into the air duct housing 10, and the exhaust pipe 80 can direct the gas after passing through the evaporator 20 and condenser 30 into the inner container 1100. The air inlet pipe 70, the air duct housing 10, and the exhaust pipe 80 together form the air duct component 110, which circulates the gas between the air duct housing 10 and the inner container 1100. In addition, the evaporator 20 and the condenser 30 are arranged in the air duct housing 10, so that the air duct housing 10, the evaporator 20, and the condenser 30 can form a whole, which facilitates assembly to form the washing machine 1000 and helps reduce the manufacturing cost of the washing machine 1000.

[0084] Specifically, the air duct housing 10 is used for ventilation. The entire air duct housing 10 can be made of easily moldable materials such as plastic, making it easy to manufacture. The air duct housing 10 can be configured to have a specific external structure based on the installation location of the heat pump drying system 1200, so that the heat pump drying system 1200 and surrounding components fit more compactly. The air duct housing 10 is connected to the inner liner 1100. The exhaust port 16 penetrates the air duct housing 10 along its thickness.

[0085] The air inlet pipe 70 and the air duct housing 10 can be an integrally formed structure or a split and detachable structure. Similarly, the exhaust pipe 80 and the air duct housing 10 can be an integrally formed structure or a split and detachable structure.

[0086] Since the hot and humid air in the inner liner 1100 flows upward, and objects such as tableware are located below the top of the inner liner 1100, in order to achieve just the right drying effect, in some embodiments, the end where the air inlet pipe 70 is connected to the inner liner 1100 is higher than the end where the exhaust pipe 80 is connected to the inner liner 1100, so that the air inlet pipe 70 can more easily extract the hot and humid air in the inner liner 1100, and the exhaust pipe 80 can discharge the dry hot air to a position below the top of the inner liner 1100, thereby better drying objects such as tableware.

[0087] In some embodiments, the air inlet pipe 70 and the exhaust pipe 80 can both be connected to the side walls of the inner tank 1100. For example, the air inlet pipe 70 and the exhaust pipe 80 can both be connected to the left side wall, right side wall or rear side wall of the inner tank 1100, thereby reducing the interference between the air inlet pipe 70 and the exhaust pipe 80 and other components of the washing appliance 1000 and improving the reliability of the washing appliance 1000.

[0088] In some embodiments, the air inlet pipe 70 may be connected to the top wall of the inner liner 1100 , while the air outlet pipe 80 is connected to the side wall of the inner liner 1100 .

[0089] See also Figure 1 In some embodiments, the heat pump drying system 1200 includes a fan 40, which is used to form an airflow in the ventilation duct. In this way, the fan 40 can provide power for the air flow in the ventilation duct. Specifically, the fan 40 can be an axial flow fan 40 or a centrifugal fan 40.

[0090] In some embodiments, the fan 40 is mounted on the air duct housing 10. For example, the fan 40 can be mounted on the air duct housing 10 by screws. In this way, the fan 40 and the air duct housing 10 form a whole, making the heat pump drying system 1200 easy to assemble.

[0091] Specifically, at least a portion of the fan 40 is located in the ventilation duct and downstream of the condenser 30. After the fan 40 is started, a negative pressure can be formed on the side facing the condenser 30, thereby sucking air around the condenser 30 to make the gas flow.

[0092] In summary, please refer to Figure 3In one embodiment, after the washing machine 1000 completes washing and enters the drying mode, the fan 40 and the heat pump drying system 1200 begin to operate. In the initial drying stage, the first valve 17 closes the exhaust port 16, allowing the fourth channel 116 to communicate with the third channel 115. The second valve 18 connects the fourth channel 116 with the first channel 113 and blocks the second channel 114 from the first channel 113. The fan 40 allows the gas flowing out of the inner tank 1100 to enter the fourth channel 116 through the first channel 113. After being cooled and dehumidified by the evaporator 20, the gas enters the third channel 115. After being heated by the condenser 30, the gas re-enters the inner tank 1100 to dry the dishes.

[0093] In the middle stage of drying, the humidity of the air decreases, the first valve 17 opens the discharge port 16, blocking the fourth channel 116 and the third channel 115, the second valve 18 connects the fourth channel 116 and the first channel 113 and blocks the second channel 114 and the first channel 113, and the fan 40 allows the gas flowing out of the inner tank 1100 to enter the fourth channel 116 through the first channel 113, and is discharged from the discharge port 16 after being cooled and dehumidified by the evaporator 20.

[0094] In the middle and late stages of drying, the second valve 18 blocks the fourth channel 116 and the first channel 113 and connects the second channel 114 and the first channel 113. The fan 40 allows the gas flowing out of the inner tank 1100 to enter the second channel 114 through the first channel 113 and then into the third channel 115. After being heated by the condenser 30, it enters the inner tank 1100 again to dry the dishes.

[0095] In the later stage of drying, the first valve 17 opens the discharge port 16, blocking the fourth channel 116 and the third channel 115. The second valve 18 connects the fourth channel 116 with the first channel 113 and the second channel 114 with the first channel 113. The fan 40 allows the gas flowing out of the inner tank 1100 to partially enter the fourth channel 116 through the first channel 113, and then be cooled and dehumidified by the evaporator 20 and discharged to the external environment from the discharge port 16. Part of the gas enters the second channel 114 and then the third channel 115, and then enters the inner tank 1100 again after being heated by the condenser 30 to dry the dishes.

[0096] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0097] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above implementation methods within the scope of the present application.

Claims

1. A washing appliance, characterized in that: include: An inner tank is provided with a washing chamber, and the inner tank is formed with an air inlet and an air outlet; A heat pump drying system, comprising an air duct component, a compressor, a condenser, a throttling device, and an evaporator connected in sequence to form a closed refrigerant circuit, one end of the air duct component being connected to the washing chamber via the air outlet, and the other end being connected to the washing chamber via the air inlet, the evaporator and the condenser being both arranged in the air duct component, the evaporator being used to cool the gas flowing out of the liner, and the condenser being used to heat the gas flowing into the liner, The air duct component is provided with a discharge port, and along the flow direction of the air duct component, the discharge port is located downstream of the evaporator, and the discharge port can be communicated with the external environment of the air duct component.

2. The washing appliance according to claim 1, characterized in that: The air duct component is formed with a guide channel, both ends of which are connected to the washing chamber, the evaporator and the condenser are arranged in the same guide channel, and along the guide direction of the guide channel, the evaporator is located upstream of the condenser; A first valve is movably provided at the discharge port, and the first valve can open and close the discharge port to connect or isolate the diversion channel from the external environment.

3. The washing appliance according to claim 2, characterized in that: When the first valve blocks the guide channel from the external environment, the heat pump drying system is configured to cool and dehumidify the air flowing out of the inner tank by the evaporator first, and then heat it by the condenser and return it to the inner tank.

4. The washing appliance according to claim 2, characterized in that: When the first valve connects the guide channel with the external environment, 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 external environment through the discharge port.

5. The washing appliance according to claim 2, characterized in that: The guide channel includes a first channel, a second channel, a third channel and a fourth channel. The first channel, the second channel and the third channel are connected in sequence. The end of the first channel away from the second channel is connected to the washing chamber. The end of the third channel away from the second channel is connected to the washing chamber. The fourth channel is arranged parallel to the second channel and connects the first channel and the third channel. The evaporator is located in the fourth channel, and the condenser is located in the third channel.

6. The washing appliance according to claim 5, characterized in that: The discharge port is provided at the connection between the fourth channel and the third channel, and the first valve selectively blocks or connects the fourth channel and the third channel. When the first valve opens the discharge port, it can block the fourth channel and the third channel; When the first valve closes the discharge port, the fourth passage and the third passage can be communicated.

7. The washing appliance according to claim 5, characterized in that: The air duct component further includes a second valve, which is disposed at the connection between the fourth channel and the first channel, and the second valve is capable of adjusting the opening of the fourth channel and the second channel connected to the first channel respectively.

8. The washing appliance according to claim 7, characterized in that: When the first valve connects the fourth channel and the third channel, and the second valve connects the fourth channel and the first channel and blocks the second channel and the first channel, the heat pump drying system is configured to first cool and dehumidify the air flowing out of the inner tank by the evaporator, and then heat it by the condenser and return it to the inner tank.

9. The washing appliance according to claim 7, characterized in that: When the first valve blocks the fourth channel and the third channel, and the second valve connects the fourth channel and the first channel and blocks the second channel and the first channel, the heat pump drying system is configured to cool and dehumidify the air flowing out of the inner tank by the evaporator and then discharge it to the external environment through the discharge port.

10. The washing appliance according to claim 7, characterized in that: When the second valve blocks the fourth channel and the first channel and connects the second channel and the first channel, the heat pump drying system is configured to heat the air flowing out of the inner tank by the condenser and then return it to the inner tank.

11. The washing appliance according to claim 7, characterized in that: When the first valve blocks the fourth channel and the third channel, and the second valve connects the fourth channel and the first channel and the second channel and the first channel, the heat pump drying system is configured to cool and dehumidify part of the air flowing out of the inner tank by the evaporator and then discharge it to the external environment from the discharge port, and heat part of the air by the condenser and then return it to the inner tank.

12. The washing appliance according to claim 1, characterized in that: The air duct component includes an air duct housing, an air inlet pipe and an exhaust pipe. The air inlet pipe and the exhaust pipe are both detachably connected to the air duct housing. The air inlet pipe and the exhaust pipe are both connected to the inner tank. The evaporator and the condenser are arranged at intervals in the air duct housing. The air duct housing is formed with the discharge port.

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