Washing electric appliance

Abstract

The utility model discloses a washing electric appliance. The washing electric appliance comprises an inner container, a spraying assembly and a heat pump drying system, and the inner container is provided with a washing cavity; the spraying assembly comprises a spraying arm arranged in the washing chamber and a water pipe connected with the spraying arm; 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, an air inlet and an air outlet are formed in the two ends of the air duct component respectively, the air inlet is communicated with the washing cavity, the air outlet is communicated with the water pipe, and the evaporator and the condenser are both arranged in the air duct component. Through the arrangement of the heat pump drying system, dry hot air treated by the heat pump drying system can be directly introduced into the water pipe and the spraying arm, so that the spraying assembly is dried, bacteria bred in the spraying assembly are reduced, and the overall drying effect, sanitation and safety of the washing electric appliance are guaranteed.

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 related art, a washing machine includes an inner tank, a heat pump drying system, and a spray device for delivering wash water to the inner tank. The washing machine has a drying mode for drying dishes. However, because the spray device in the inner tank tends to retain a large amount of water, the drying effect is poor and can easily lead to bacterial growth. Utility Model Content

[0003] The present application provides a washing appliance, which at least solves the technical problem that a spray device in a washing appliance tends to retain a large amount of water.

[0004] The present application provides a washing appliance, which includes an inner tank, a spray assembly and a heat pump drying system, wherein: the inner tank is provided with a washing chamber; the spray assembly includes a spray arm arranged in the washing chamber and a water pipe connected to the spray arm; 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, the two ends of the air duct component are respectively formed with an air inlet and an air outlet, the air inlet is connected to the washing chamber, and the air outlet is connected to the water pipe, and the evaporator and the condenser are both arranged in the air duct component.

[0005] The washing appliance of the embodiment of the present application uses a heat pump drying system to dry and heat the air in the inner tank and the air duct component, and the exhaust port of the air duct component is connected to the water pipe of the spray component. The evaporator and condenser are both arranged in the air duct component, so that the dry hot air treated by the evaporator and condenser can be directly passed into the water pipe and the spray arm, thereby drying the spray component, reducing the growth of bacteria in the spray component, and also improving the overall drying effect of the washing appliance.

[0006] In some embodiments, 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 water pipe. 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 before returning it to the inner tank through the water pipe and the spray arm.

[0007] In certain embodiments, the spray assembly includes a circulation pump disposed on a water pipe, an exhaust port is disposed downstream of the circulation pump, and the exhaust port is connected to the water pipe between the circulation pump and the spray arm.

[0008] In some embodiments, the washing appliance includes a water cup disposed at the bottom of the inner tank, the water cup is used to collect water in the washing chamber, one end of the water pipe is connected to the water cup, and a spray arm near the water cup is provided with a nozzle or spray hole facing the water cup.

[0009] In some embodiments, the spray assembly includes a spray arm seat arranged on the inner tank, the spray arm is sealedly connected to the spray arm seat and is movably arranged relative to the spray arm seat, and the spray arm seat is connected to the water pipe flow path to connect the spray arm with the water pipe.

[0010] In some embodiments, the spray arm seat is provided with a drive motor, which is connected to the spray arm, and the drive motor is used to drive the spray arm to rotate relative to the spray arm seat.

[0011] In some embodiments, the washing appliance includes a valve, which is disposed at the air outlet and can selectively isolate or connect the water pipe and the air duct component.

[0012] In some embodiments, the washing appliance has a washing mode and a drying mode. In the washing mode, washing water flows through the water pipe and the spray arm, the spray arm sprays washing water into the washing chamber, and the valve separates the water pipe and the air duct component; in the drying mode, the spray arm stops spraying washing water, and the valve connects the water pipe and the air duct component.

[0013] In some embodiments, the baffle is movably provided at the air inlet, the baffle is used to separate or connect the washing chamber with the air duct component, and the baffle is rotatably provided relative to the air duct component.

[0014] In some embodiments, the air duct component is formed with a guide channel, one end of the guide channel is connected to the washing chamber, and the other end is connected to the spray arm. 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.

[0015] 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

[0016] 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:

[0017] Figure 1 It is a schematic structural diagram of a washing appliance according to certain embodiments of the present application.

[0018] Description of reference numerals:

[0019] 1000-washing appliance, 1100-inner tank, 1101-washing chamber, 1102-bracket, 1300-water cup, 1400-baffle, 1500-valve, 200-spray assembly, 210-spray arm, 220-water pipe, 221-circulation pump, 222-branch pipe;

[0020] 1200-heat pump drying system, 100-air duct components, 10-air duct housing, 11-flow guide channel, 20-evaporator, 30-condenser, 40-fan, 60-compressor, 70-intake pipe, 71-air inlet, 80-exhaust pipe, 81-exhaust outlet, 90-throttling device. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] See also Figure 1 The washing machine 1000 according to the embodiment of the present application includes an inner tank 1100 and a heat pump drying system 1200. The heat pump drying system 1200 is connected to the inner tank 1100 and is used to dry the hot and humid air flowing out of the inner tank 1100 and heat the dried air so that the heated dry air flows back into the inner tank 1100. This cycle achieves the effect of drying the inner tank 1100. The washing machine 1000 is, for example, a dishwasher.

[0027] It should be pointed out that the dried air mentioned above refers to the hot and humid air in the inner liner 1100, and does not mean that the air contains no water vapor at all.

[0028] See also Figure 1The washing appliance 1000 of the embodiment of the present application includes an inner tank 1100, a spray assembly 200 and a heat pump drying system 1200, wherein: the inner tank 1100 is provided with a washing chamber 1101; the spray assembly 200 includes a spray arm 210 arranged in the washing chamber 1101 and a water pipe 220 connected to the spray arm 210; the heat pump drying system 1200 includes an air duct component 100, a compressor 60, a condenser 30, a throttling device 90 and an evaporator 20 connected in sequence to form a closed refrigerant circuit, and an air inlet 71 and an air outlet 81 are respectively formed at the two ends of the air duct component 100, the air inlet 71 is connected to the washing chamber 1101, and the air outlet 81 is connected to the water pipe 220, and the evaporator 20 and the condenser 30 are both arranged in the air duct component 100.

[0029] The washing appliance 1000 of the embodiment of the present application dries and heats the air in the inner tank 1100 and the air duct component 100 through the evaporator 20 and the condenser 30 in the heat pump drying system 1200, and the exhaust port 81 of the air duct component 100 is connected to the water pipe 220 of the spray assembly 200. The evaporator 20 and the condenser 30 are both arranged in the air duct component 100, so that the dry hot air treated by the evaporator 20 and the condenser 30 can be directly passed into the water pipe 220 and the spray arm 210, thereby drying the spray assembly 200, reducing the growth of bacteria in the spray assembly 200, and also improving the overall drying effect of the washing appliance 1000.

[0030] Specifically, the washing chamber 1101 is used to place dishes to be washed and provides a place for washing dishes. During the washing process, the spray arm 210 of the spray assembly 200 sprays water, detergent, etc. into the washing chamber 1101 to soak, wash, or rinse the dishes. The washing chamber 1101 may be provided with a bracket 1102 for placing items to be cleaned (such as dishes), and the spray arm 210 may be positioned toward and near the bracket 1102.

[0031] The condenser 30 and the evaporator 20 can be connected to the compressor 60 through a pipeline. The compressor 60 can pump the refrigerant to the condenser 30 and the evaporator 20 and circulate the refrigerant in the pipeline, effectively achieving drying and heat exchange of the hot and humid air.

[0032] Specifically, the compressor 60, condenser 30, throttling device 90 and evaporator 20 are the main components of the heat pump drying system 1200 of the washing appliance 1000, which are connected in sequence to form a closed refrigerant circuit, so that the refrigerant serving as the refrigerant can circulate in the sealed refrigerant circuit formed by the compressor 60, condenser 30, throttling device 90 and evaporator 20. The cooperation of the four can enable the heat pump drying system 1200 to achieve the effect of the drying spray component 200.

[0033] In the drying mode of the washing machine 1000, 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. After being heated by the condenser 30, the dried air can pass through the spray assembly 200 and re-enter the inner tank 1100. The throttling device 90 can be an expansion valve, and further, the throttling device 90 can be an electronic expansion valve.

[0034] The air duct component 100 includes a heat exchange module with a heat exchange function. The heat exchange module has at least some heat exchange components of the heat pump drying system 1200, that is, the heat exchange module includes at least an evaporator 20 and a condenser 30, so that the washing appliance 1000 can achieve the effect of the drying spray assembly 200 through the air duct component 100.

[0035] One end of the air duct component 100 is connected to the washing chamber 1101 through the air inlet 71, and the hot and humid air in the washing chamber 1101 flows into the air duct component 100 through the air inlet 71. The other end of the air duct component 100 is connected to the water pipe 220 through the exhaust port 81. The dried and heated air in the air duct component 100 flows into the water pipe 220 through the exhaust port 81, and then the dry airflow flows along the water pipe 220 through the spray arm 221, the nozzle (not shown) and other components of the spray assembly 200 through which the washing water circulates, thereby achieving the effect of drying the spray assembly 200.

[0036] The air duct component 100 can guide the gas after passing through the evaporator 20 and the condenser 30 in sequence into the water pipe 220 and finally return it to the inner tank 1100 through the spray arm 210, so as to realize the circulation of gas between the air duct component 100, the spray assembly 200 and the inner tank 1100.

[0037] In some embodiments, the evaporator 20 is used to cool the gas flowing out of the inner liner 1100, and the condenser 30 is used to heat the gas flowing into the water pipe 220. The heat pump drying system 1200 is configured to first cool and dehumidify the air flowing out of the inner liner 1100 by the evaporator 20, and then heat it by the condenser 30 before returning it to the inner liner 1100 through the water pipe 220 and the spray arm 210.

[0038] 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.

[0039] The condenser 30 is also a heat exchanger in the heat pump drying system 1200. When the heat pump drying system 1200 is in operation, the condenser 30 can generate heat, thereby absorbing heat from the surrounding air to increase the temperature of the surrounding air, so that the gas flowing through the condenser 30 enters the spray assembly 200 and achieves a drying effect.

[0040] The starting section of the water pipe 220 along the direction of the spray water flow is connected to the exhaust port 81, so that the air duct component 100 is in fluid communication with the spray assembly 200. The end of the water pipe 220 can be directly connected to the exhaust port 81, or it can be connected through a joint or other connector. The air dried by the evaporator 20 and the condenser 30 enters the water pipe 220 through the exhaust port 81, and is transported along the water pipe 220 to the spray arm 210, and can eventually circulate to the heat pump system 1200 to continue the cycle. The air transported to the spray assembly 200 by the heat pump system 1200 can be heated hot air with a higher temperature, which further promotes the drying effect of the spray assembly 200.

[0041] Airflow within washing appliance 1000 circulates through heat pump drying system 1200. This airflow circulates along the path from inner tank 1100 to evaporator 20 to condenser 30 to water pipe 220 to spray arm 210 and finally to inner tank 1100, achieving excellent ventilation and drying effects while also helping to reduce bacterial and odor growth.

[0042] See also Figure 1 In some embodiments, the air duct component 100 includes an air duct housing 10, an air inlet pipe 70 and an exhaust pipe 80. The air inlet pipe 70 and the exhaust pipe 80 are both connected to the air duct housing 10. 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 arranged at intervals in the air duct housing 10. The air inlet pipe 70 is formed with an air inlet 71, and the exhaust pipe 80 is formed with an air outlet 81.

[0043] In this way, the air inlet pipe 70 can guide the gas in the inner tank 1100 into the air duct shell 10, and the exhaust pipe 80 can guide the gas after passing through the evaporator 20 and the condenser 30 in sequence into the water pipe 220 and finally return to the inner tank 1100 through the spray arm 210, thereby realizing the circulation of gas between the air duct component 100, the spray assembly 200 and the inner tank 1100.

[0044] 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 with a specific external structure based on the installation location of the air duct component 100, so that the air duct component 100 fits more compactly with surrounding components. The air duct housing 10 is in communication with the inner liner 1100.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] The connection between the air inlet pipe 70 and the inner liner 1100 forms an air inlet 71, and the connection between the exhaust pipe 80 and the inner liner 1100 forms an exhaust vent 81. The air duct housing 10, the air inlet pipe 70, and the exhaust pipe 80 together form a flow channel 11. The air inlet pipe 70, the air duct housing 10, and the exhaust pipe 80 are arranged in sequence along the flow direction of the flow channel 11.

[0049] In some embodiments, there are multiple spray arms 210, which are spaced apart along the height of the washing chamber 1101. In this way, the power of the spray assembly 200 pumping and spraying the washing water and the action of gravity are used to flush the items to be cleaned in the washing chamber 1101 from top to bottom, achieving sufficient immersion and washing.

[0050] The washing appliance 1000 is usually placed on a horizontal or nearly horizontal ground. In order to place items such as tableware stably in the washing chamber, the height direction of the washing chamber is defined in this application as being perpendicular to the horizontal direction.

[0051] A plurality of spray arms 210 may be provided within the washing chamber 1101. The plurality of spray arms 210 may be spaced apart along the height direction of the washing chamber 1101. A plurality of spray arms 210 may be provided in the same height direction and arranged along the width direction of the washing chamber 1101 to fully wash the washed items in the washing chamber 1101. For example, the bracket 1102 may be a multi-layer structure, and the plurality of spray arms 210 may be arranged at different heights along the vertical direction of the washing chamber 1101, corresponding to the height of each layer of the bracket 1102. The end of the spray arm 210 may be a nozzle (not shown), which may be provided or have different calibers to adjust the spray density of the washing water.

[0052] The water pipe 220 is used to transmit washing water. The end of the water pipe 220 along the flow direction of the washing water can form multiple branches 222, and each branch 222 is connected to a spray arm 210. The washing water can be pure water, tap water or water containing detergent components.

[0053] See also Figure 1 In some embodiments, the spray assembly 200 includes a circulation pump 221 disposed on the water pipe 220 , and the exhaust port 81 is disposed downstream of the circulation pump 221 , and the exhaust port 81 is connected to the water pipe 220 between the circulation pump 221 and the spray arm 210 .

[0054] In this way, by setting the exhaust port 81 downstream of the circulation pump 221, when the exhaust port 81 is connected to the water pipe 220, the dry air in the heat pump drying system 1200 can be directly introduced into the water pipe 220 and the spray arm 210 downstream of the circulation pump 221, thereby achieving the purpose of drying the spray assembly 200.

[0055] Specifically, the circulation pump 221 provides spraying power for the spray assembly 200. This application does not limit the driving power source of the circulation pump 221. For example, the circulation pump 221 can be driven by water. In another example, the circulation pump 221 can be electrically driven to ensure good sealing of the spray assembly 200, thereby facilitating drying of the spray assembly 200.

[0056] In certain embodiments, the spray assembly 200 includes a spray arm holder (not shown) disposed on the inner container 1100. The spray arm 210 is sealedly connected to the spray arm holder and is movable relative to the spray arm 210. The spray arm holder is fluidically connected to the water pipe 220, thereby ensuring communication between the spray arm 210 and the water pipe 220. In this manner, the sealed connection between the spray arm 210 and the spray arm holder ensures a good seal of the spray assembly 200, and the airflow used to dry the spray assembly 200 is not easily dissipated, thereby improving the drying efficiency of the spray assembly 200 and reducing the risk of contamination of the spray assembly 200.

[0057] Specifically, the spray arm mount can be fixedly mounted on the inner tank 1100, and the spray arm 210 is movably connected to the spray arm mount, allowing the spray arm 210 to move relative to the inner tank 1100, thereby spraying or injecting washing water into the washing chamber 1101 at various angles. The spray arm 210 and the spray arm mount can be electrically driven, replacing the traditional snap-on connection to ensure a tight connection.

[0058] In some embodiments, the spray arm base (not shown) is provided with a drive motor (not shown), which is connected to the spray arm and is used to drive the spray arm 210 to rotate relative to the spray arm base. In this way, the use of a motorized spray arm can ensure the airtightness between the spray arm base and the spray arm 210.

[0059] Specifically, the driving motor drives the spray arm 210 to rotate relative to the spray arm base and also relative to objects such as tableware in the washing chamber 1101, thereby expanding the spraying area of the washing water.

[0060] Optionally, each spray arm 210 may be connected to a spray arm base, and each spray arm base may be provided with at least one drive motor. Each spray arm 210 is driven individually by a drive motor.

[0061] In some embodiments, the washing appliance 1000 includes a valve 1500 , which is disposed at the air outlet 81 . The valve 1500 can selectively block or connect the water pipe 220 and the air duct component 100 .

[0062] In this way, by isolating or connecting the water pipe 220 and the air duct component 100 through the valve 1500, it is possible to prevent washing water from entering the air duct component 100 and ensure that the air duct component 100 can smoothly transport dry airflow to the spray assembly 200.

[0063] Specifically, the valve 1500 can be provided on the air duct component 100 or the water pipe 220. The valve 1500 can be a stop valve, a regulating valve, an exhaust valve, etc.

[0064] In certain embodiments, washing machine 1000 has a washing mode and a drying mode. In the washing mode, washing water flows through water pipe 220 and spray arm 210, spray arm 210 sprays washing water into the washing chamber, and valve 1500 separates water pipe 220 from air duct component 100. In the drying mode, spray arm 210 stops spraying washing water, and valve 1500 connects water pipe 220 and air duct component 100. Thus, valve 1500 separates water pipe 220 from air duct component 100 in the washing mode and connects water pipe 220 and air duct component 100 in the drying mode, ensuring that washing machine 1000 can operate smoothly in either the washing mode or the drying mode.

[0065] The water pipe 220 and the exhaust vent 81 can be connected or disconnected via valve 1500. In the washing mode of the washing appliance, the circulation pump 221 is turned on and can run continuously. Valve 1500 disconnects the flow path between the water pipe 220 and the exhaust vent 81, preventing wash water from flowing into the air duct component 100 and heat exchange components such as the evaporator 20 and the condenser 30. After washing, the heat pump drying system 1200 is used to dry the spray assembly 200. The circulation pump 221 is turned off, and valve 1500 is opened. Dry air processed by the heat pump drying system 1200 is delivered to the spray assembly 200 through valve 1500, reducing residual moisture in the water pipe 220 and the spray arm 210.

[0066] Please continue reading Figure 1 In some embodiments, the washing appliance 1000 includes a water cup 1300 disposed at the bottom of the inner tank 1100, the water cup 1300 is used to collect water in the washing chamber 1101, one end of the water pipe 220 is connected to the water cup 1300, and at least one of the multiple spray arms 210 is provided with a nozzle (not shown) or a spray hole (not shown) facing the water cup 1300.

[0067] In this way, the used washing water in the washing chamber 1101 is collected by the water cup 1300, and one end of the water pipe 220 is connected to the water cup 1300, so as to realize the reuse of the washing water. The nozzle or spray hole facing the water cup 1300 is set by the spray arm 210, so as to guide the drying air of the heat pump drying system 1200 to the water cup 1300, thereby accelerating the drying of the water cup 1300.

[0068] Specifically, the washing chamber 1101 may be provided with a bracket 1102 for supporting the objects to be cleaned. The bracket 1102 may be a multi-layer structure to accommodate tableware or other items of different sizes. The spray arm 210 may spray washing water containing detergent toward the tableware or other objects to be cleaned on the bracket 1102 to rinse and clean the tableware. The water cup 1300 is disposed at the bottom of the inner liner 1100 and may be placed below the bracket 1102. After cleaning the tableware, the washing water flows downward under the action of gravity or drips into the water cup 1300. The water cup 1300 collects and holds the washing water at the bottom of the inner liner 1100. The starting end of the water pipe 220 along the flow direction of the washing water is connected to the water cup 1300, and the water cup 1300 is disposed upstream of the circulation pump 221. When the washing appliance 1000 is used to wash items to be cleaned (such as dishes), the circulation pump 221 continuously circulates the washing water in the water cup 1300 to the water pipe 220 and each spray arm 210 .

[0069] When the washing appliance 1000 is in washing mode, the circulating pump 221 is started. First, washing water can be drawn from a water storage device (not shown) or an external water source. The circulating pump 221 pumps the washing water into the water pipe 220. The water pipe 220 transports the washing water to the spray arm 210. The spray arm 210 sprays the washing water into the washing chamber 1101. The water cup 1300 collects the washing water flowing to the bottom of the washing chamber 1101. Then, the water cup 1300 is connected to the flow path of the circulating pump 221. The circulating pump 221 can draw water from the water cup 1300 and continue to pump it to the water pipe 220 and the spray arm 210. The spray arm 210 sprays the washing water into the washing chamber 1101 again. The water cup 1300 can collect the washing water again, and the cycle continues.

[0070] In some examples, the water cup 1300 also collects and holds debris that falls off the washed items. A water filtration and purification device may be provided between the water cup 1300 and the water pipe 220 to ensure the cleanliness of the reused water.

[0071] In some embodiments, the spray arm 210 near the bottom of the inner liner 1100 may be provided with a nozzle or a spray hole facing the water cup 1300 , thereby directing the dry air of the heat pump drying system 1200 to the water cup 1300 to accelerate the drying of the water cup 1300 .

[0072] See also Figure 1 In some embodiments, the washing appliance 1000 includes a baffle 1400 movably disposed at the air inlet 71. The baffle 1400 is used to separate or connect the water pipe 220 with the air duct component 100. The baffle 1400 is rotatable relative to the air duct component 100. Thus, by disposing the movable baffle 1400 at the air inlet 71, the baffle 1400 separates the water pipe 220 from the air duct component 100 during the washing process, while connecting the water pipe 220 to the air duct component 100 during the drying process of the heat pump drying system 1200. This prevents the evaporator 20, condenser 30, and other appliances in the air duct component 100 from being disturbed by the wash water, thereby improving the reliability of the heat pump drying system 1200.

[0073] Specifically, the baffle 1400 keeps covering the air inlet 71 during the washing process, disconnecting the flow path between the water pipe 220 and the air inlet 71, and can seal the air inlet 71, effectively preventing the wash water from entering the air duct component 100 through the air inlet 71. During the washing process, the circulating pump is turned on to continuously pump wash water into the water pipe 220.

[0074] After the washing process is completed, the baffle 1400 moves relative to the air duct component 100 and opens the air inlet 71. The water pipe 220 is in fluid communication with the air duct component 100. The heat pump drying system 1200 operates to dehumidify and heat the air in the washing chamber 1101 and the air duct component 100, and delivers dry air to the spray assembly 200 through the air inlet 71 to dry the spray assembly 200. After the spray assembly 200 is dried, or before the next washing process begins, the baffle 1400 can move relative to the air duct component 100 again to cover the air inlet 71, isolating the spray assembly 200 from the air duct component 100.

[0075] The baffle 1400 may be a thin plate or sheet structure, and the area of the baffle 1400 is greater than or equal to the cross-sectional area of the air inlet 71 to ensure that the baffle 1400 can fully cover the air inlet 71. The cross-sectional area of the air inlet 71 refers to the cross-sectional area formed perpendicular to the direction of air flow through the air inlet 71. The present application does not limit the shape of the baffle 1400. The shape of the baffle 1400 can match the cross-sectional shape of the air inlet 71. For example, the cross-sectional areas of the baffle 1400 and the air inlet 71 are both elliptical, and the cross-sectional areas of the baffle 1400 and the air inlet 71 are concentric. The major axis of the baffle 1400 is greater than the minor axis of the cross-sectional area of the air inlet 71, and the minor axis of the baffle 1400 is greater than the minor axis of the cross-sectional area of the air inlet 71. For another example, the shape of the baffle 1400 is different from that of the air inlet 71, and the dimensions of the baffle 1400 in all directions are greater than the dimensions of the cross-sectional area of the air inlet 71 in the same direction.

[0076] Furthermore, by closely cooperating between the baffle 1400 and the channel wall at the air inlet 71, the sealing effect of the washing chamber 1101 and the interior of the air duct component 100 during the washing process can be improved, thereby reducing the risk of contamination.

[0077] By rotating the baffle 1400 relative to the air duct component 100 , the movement trajectory of the baffle 1400 is relatively stable, and the structure is simple and reliable, thereby effectively controlling the opening and closing of the air inlet 71 .

[0078] Specifically, before washing begins, baffle 1400 rotates a certain angle relative to air duct component 100 until it completely blocks air inlet 71, isolating water pipe 220 from air duct component 100. After washing is completed, before the compressor 60, evaporator 20, and condenser 30 in heat pump drying system 1200 are started, baffle 1400 rotates from blocking air inlet 71 to another angle to open air inlet 71 and connect water pipe 220 to air duct component 100.

[0079] The center of rotation of baffle 1400 can be located at a side edge of the air inlet 71. Baffle 1400 rotates in the direction of air flow through the air inlet 71, forming a door-like structure. When baffle 1400 rotates relative to the air duct component 100 until the air inlet 71 is fully open, baffle 1400 can be located in the air guide channel 11 and form an angle slightly less than 90° with the plane of the air inlet 71.

[0080] In some extended embodiments, the baffle 1400 rotates in a direction parallel to the cross section of the air inlet 71 to cover and open the air inlet 71 .

[0081] It should be noted that the present application does not limit the movable manner of the baffle 1400 relative to the air duct component 100. The baffle 1400 can also be movable relative to the air duct component 100 in various manners such as translation, sliding, and twisting.

[0082] See also Figure 1 In some embodiments, the washing appliance 1000 further includes a driving device (not shown) connected to the baffle 1400, and the driving device (not shown) is used to drive the baffle 1400 to rotate. In this way, the driving device (not shown) is connected to the baffle 1400 to provide driving force for the baffle 1400, further ensuring the reliability of the movable structure of the baffle 1400.

[0083] Specifically, the drive device (not shown) is a structure capable of providing a driving force to rotate the baffle 1400. The drive methods of the drive device (not shown) include, but are not limited to, motor drive, hydraulic drive, air pump drive, thermal drive, etc. The drive device (not shown) may include one or more transmission structures selected from the group consisting of a rotating shaft, a rotating rod, a gear, a chain, a cam, and a bearing. The transmission structure is connected to the baffle 1400 to drive the baffle 1400 to rotate. For example, the drive device (not shown) includes a rotating shaft connected to a side edge of the baffle 1400. The rotating shaft is disposed at the air inlet 71. The rotating shaft is connected to the baffle 1400 and serves as the rotation center of the baffle 1400. The rotating shaft is configured to rotate along the direction of airflow entering and exiting the air inlet 71.

[0084] In some embodiments, a driving device (not shown) controls the rotation angle of the baffle 1400 by providing a braking force to the baffle 1400 .

[0085] In other embodiments, a limiting device, such as a protrusion, a slot, etc., may be provided in the air duct component 100 to limit the rotation angle of the baffle 1400 .

[0086] See also Figure 1In some embodiments, the air duct component 100 is formed with a guide channel 11; one end of the guide channel 11 is connected to the washing chamber 1101, and the other end is connected to the spray arm 210. The evaporator 20 and the condenser 30 are arranged in the same guide channel 11. Along the guide direction of the guide channel 11, the evaporator 20 is located upstream of the condenser 30.

[0087] In this way, by setting the evaporator 20 upstream of the condenser 30, the evaporator 20 and the condenser 30 cooperate with each other to first cool and dry the air in the same guide channel 11 and then heat it, so that the washing appliance 1000 can use the heat pump drying system 1200 to achieve the effect of drying the spray component 200.

[0088] Specifically, the air inlet 71 is the starting end of the guide channel 11 along the guide direction and is connected to the washing chamber 1101. The air outlet 81 is the end of the guide channel 11 along the guide direction and is connected to the water pipe 220 and indirectly connected to the spray arm 210.

[0089] The guide channel 11 formed by the air duct component 100 is used to achieve a ventilation effect, so that the gas can circulate between the inner tank 1100 of the washing appliance 1000, the heat pump drying system 1200 and the spray assembly 200 to achieve the effect of drying the spray assembly 200. The guide channel 11 can be set to a curved shape or other shape 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 where the evaporator 20 and the condenser 30 are accommodated is larger, and the cross-sectional area of other positions is smaller.

[0090] 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.

[0091] 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.

[0092] 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 guide channel 11. In this way, the fan 40 can provide power for the gas flow in the guide channel 11.

[0093] Specifically, the fan 40 may be an axial flow fan 40 or a centrifugal fan 40 .

[0094] At least a portion of the fan 40 is located in the guide channel 11 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.

[0095] In one embodiment, after the washing appliance 1000 completes washing and enters drying mode, the fan 40 and heat pump drying system 1200 begin operating. The baffle 1400 connects the washing chamber 1101 with the air duct component 100, and the valve 1500 connects the air duct component 100 and the spray assembly 200. The fan 40 causes air to circulate through the washing chamber 1101, the air inlet pipe 70, the air duct housing, the exhaust pipe 80, and the spray assembly 200. After the hot and humid air passes through the evaporator 20, the evaporator 20 cools the hot and humid air and forms condensed water, drying the air. The air dried by the evaporator 20 is heated by the condenser 30. The dried and heated air enters the water pipe 220 through the exhaust port 81, is transported by the water pipe 220 to the spray arm 210, and then enters the inner tank 1100 again through the spray arm 210, and then enters the air duct component 100 again. This cycle continues, achieving the effect of drying the spray assembly 200.

[0096] The spray arm 210 at the bottom of the inner tank 1100 can spray dry air toward the water cup 1300, reducing any residual water in the water cup 1300. This allows the spray assembly 200 and water cup 1300 to quickly and effectively dry out after use, reducing bacterial growth, ensuring the hygiene and safety of the washing machine 1000, improving the overall dryness of the washing machine 1000, and also helping to reduce odors.

[0097] 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.

[0098] 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, provided with a washing chamber; a spray assembly, the spray assembly comprising a spray arm disposed in the washing chamber and a water pipe communicating with the spray arm; and 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, the two ends of the air duct component are respectively formed with an air inlet and an air outlet, the air inlet is connected to the washing chamber, the air outlet is connected to the water pipe, and the evaporator and the condenser are both arranged in the air duct component.

2. The washing appliance according to claim 1, characterized in that: 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 water pipe. 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 before returning it to the inner tank through the water pipe and the spray arm.

3. The washing appliance according to claim 1, characterized in that: The washing appliance includes a circulation pump arranged on the water pipe, the exhaust port is arranged downstream of the circulation pump, and the exhaust port is connected to the water pipe between the circulation pump and the spray arm.

4. The washing appliance according to claim 1, characterized in that: The washing appliance includes a water cup arranged at the bottom of the inner tank, the water cup is used to collect water in the washing chamber, the water pipe is connected to the water cup, and the spray arm close to the water cup is provided with a nozzle or spray hole facing the water cup.

5. The washing appliance according to claim 1, characterized in that: The spray assembly includes a spray arm seat arranged on the inner tank, the spray arm is sealed and connected to the spray arm seat and is movably arranged relative to the spray arm seat, and the spray arm seat is connected to the water pipe flow path to enable the spray arm to communicate with the water pipe.

6. The washing appliance according to claim 5, characterized in that: The spray arm seat is provided with a driving motor, the driving motor is connected to the spray arm, and the driving motor is used to drive the spray arm to rotate relative to the spray arm seat.

7. The washing appliance according to claim 1, characterized in that: The washing appliance includes a valve, which is arranged at the air outlet and can selectively isolate or connect the water pipe and the air duct component.

8. The washing appliance according to claim 7, characterized in that: The washing appliance has a washing mode and a drying mode. In the washing mode, washing water flows through the water pipe and the spray arm, the spray arm sprays the washing water into the washing chamber, and the valve isolates the water pipe from the air duct component. In the drying mode, the spray arm stops spraying washing water, and the valve connects the water pipe and the air duct component.

9. The washing appliance according to claim 1, characterized in that: The washing appliance includes a baffle, which is movably arranged at the air inlet and is used to separate or connect the washing chamber with the air duct component. The baffle is rotatably arranged relative to the air duct component.

10. The washing appliance according to claim 1, characterized in that: The air duct component is formed with a guide channel, one end of the guide channel is connected to the washing chamber, and the other end is connected to the spray arm. 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.

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