Washing appliance

By introducing a multi-stage heat pump drying system into washing appliances, secondary cooling and dehumidification are performed using the evaporator and cold end, while secondary heating is performed using the condenser and hot end. This solves the problem of poor heat pump drying effect in existing washing appliances and achieves a more efficient dish drying effect.

WO2026026174A1PCT designated stage Publication Date: 2026-02-05FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING CO LTD
View PDF 8 Cites 0 Cited by

Patent Information

Application Number
PCT/CN2025/097214
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-31
Filing Date
2025-05-26
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

The existing heat pump drying system in washing appliances has poor drying performance and needs to be improved.

Method used

In a washing appliance, an evaporator and a cold end are introduced to perform secondary cooling and dehumidification of the humid and hot air in the air duct components, while a condenser and a hot end are used to perform secondary heating of the dried air, forming a multi-stage heat pump drying system to improve the drying effect.

Benefits of technology

The multi-stage heat pump drying system significantly improves the drying effect of washing appliances and enhances the drying capacity for items such as tableware.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2025097214_05022026_PF_FP_ABST
    Figure CN2025097214_05022026_PF_FP_ABST
Patent Text Reader

Abstract

A washing appliance (1000), comprising an inner tub (1100), a heat pump drying system (1200), and a heat pipe assembly (1400). The inner tub (1100) is provided with a washing chamber (1110). The heat pump drying system (1200) comprises: an air duct component (110); and a compressor (60), a condenser (30), a throttling apparatus (90), and an evaporator (20) which form a closed refrigerant loop. The air duct component (110) is in communication with the washing chamber (1110). The evaporator (20) and the condenser (30) are both disposed in the air duct component (110). The evaporator (20) is used for cooling gas flowing out of the inner tub (1100), and the condenser (30) is used for heating gas flowing toward the inner tub (1100). The heat pipe assembly (1400) comprises a hot end (1410) and a cold end (1420). The hot end (1410) and the cold end (1420) are both disposed in the air duct component (110). The cold end (1420) is used for cooling gas flowing out of the inner tub (1100), and the hot end (1410) is used for heating gas flowing toward the inner tub (1100).
Need to check novelty before this filing date? Find Prior Art

Description

Washing appliance

[0001] Priority information

[0002] The present application claims priority to and the benefit of Chinese Patent Application Nos. 202411044863.9 and 202421839796.5, filed on July 31, 2024, with the State Intellectual Property Office of China, and incorporates by reference the entire disclosure thereof. TECHNICAL FIELD

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

[0004] In the related art, a washing appliance includes an inner container and a heat pump drying system, and the washing appliance has a drying mode for drying tableware. However, when the washing appliance is drying, the drying effect of the heat pump drying system needs to be further improved. SUMMARY

[0005] 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.

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

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

[0008] a heat pump drying system, comprising an air duct component, a compressor, a condenser, a throttling device and an evaporator constituting a closed refrigerant circuit, the air duct component being in communication with the washing chamber, the evaporator and the condenser being both arranged in the air duct component, the evaporator being used for cooling the gas flowing out of the inner container, and the condenser being used for heating the gas flowing to the inner container; and

[0009] a heat pipe assembly, comprising a hot end and a cold end, the hot end and the cold end being both arranged in the air duct component, the cold end being used for cooling the gas flowing out of the inner container, and the hot end being used for heating the gas flowing to the inner container.

[0010] In the washing appliance of the present application, the evaporator and the cold end can perform secondary cooling and dehumidification on the hot and humid air in the air duct component, improve the dehumidification capacity of the heat pump drying system, the condenser and the hot end can perform secondary heating on the dry air in the air duct component, improve the temperature rise of the heat pump drying system, and thus improve the drying effect of the washing appliance.

[0011] In some embodiments, the air duct component is formed with a flow guide channel, both ends of the flow guide channel being in communication with the washing chamber.

[0012] In some embodiments, the evaporator, the condenser, the hot end and the cold end are arranged in the same flow channel.

[0013] In some embodiments, the evaporator is arranged upstream of the condenser along a flow direction of the flow channel.

[0014] In some embodiments, the cold end is arranged upstream of the hot end along a flow direction of the flow channel.

[0015] In some embodiments, the cold end is arranged upstream of the evaporator along a flow direction of the flow channel.

[0016] In some embodiments, the hot end is arranged between the evaporator and the condenser.

[0017] In some embodiments, the cold end, the evaporator, the hot end and the condenser are arranged in sequence along a flow direction of the flow channel, and the washing appliance is configured to cool and dehumidify the air flowing out of the inner container by the cold end and the evaporator first, and then to heat the air by the hot end and the condenser and return the air to the inner container.

[0018] In some embodiments, the air duct component is formed with a first flow channel and a second flow channel independent of the first flow channel, the first flow channel is in communication with the washing chamber, and two ends of the second flow channel are in communication with the washing chamber.

[0019] In some embodiments, the evaporator and the cold end are arranged in the first flow channel.

[0020] In some embodiments, the condenser and the hot end are arranged in the second flow channel.

[0021] In some embodiments, two ends of the first flow channel are in communication with the washing chamber, the washing appliance is configured to cool the air flowing out of the inner container by the cold end and the evaporator and return the air to the inner container, and the air flowing out of the inner container is heated by the hot end and the condenser and then returned to the inner container.

[0022] In some embodiments, the inner container is formed with an air inlet and an air outlet, one end of the first flow channel is in communication with the washing chamber through the air outlet, and the other end of the first flow channel is in communication with the washing chamber through the air inlet.

[0023] In some embodiments, the air inlet and the air outlet are located on different side walls of the inner container.

[0024] In some embodiments, one end of the first flow channel is in communication with the washing chamber, and the other end is in communication with the outside of the washing chamber, the washing appliance is configured to discharge the air flowing out of the inner tub to the outside after being cooled by the cold end and the evaporator, and the air flowing out of the inner tub is returned to the inner tub after being heated by the hot end and the condenser.

[0025] In some embodiments, along the flow direction of the first flow channel, the cold end is upstream of the evaporator.

[0026] In some embodiments, along the flow direction of the second flow channel, the hot end is upstream of the condenser.

[0027] In some embodiments, the hot end and the cold end are connected by a heat insulation connecting piece.

[0028] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0030] FIG. 1 is a structural schematic diagram of a washing appliance according to some embodiments of the present application;

[0031] FIG. 2 is a structural schematic diagram of a washing appliance according to some embodiments of the present application;

[0032] FIG. 3 is a structural schematic diagram of a washing appliance according to some embodiments of the present application.

[0033] BRIEF DESCRIPTION OF DRAWINGS DETAILED DESCRIPTION

[0034] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals throughout the drawings, and the embodiments described below are exemplary and are for the purpose of explaining the embodiments of the present application, and are not to be understood as limiting the embodiments of the present application.

[0035] In the description of the embodiments of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and are not to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0036] In the description of the embodiments of the present application, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] In the embodiments of the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and arrangements of the specific examples are described in the following. Of course, they are merely examples and are not intended to limit the present application. The present application can repeat the reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0039] Referring to FIG. 1, the washing appliance 1000 of the present application includes an inner container 1100, a heat pump drying system 1200, and a heat pipe assembly 1400. The inner container 1100 is provided with a washing chamber 1110. 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 constituting a closed refrigerant circuit. The air duct component 110 communicates with the washing chamber 1110. 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 container 1100. The condenser 30 is used to heat the gas flowing into the inner container 1100. The heat pipe assembly 1400 includes a hot end 1410 and a cold end 1420. The hot end 1410 and the cold end 1420 are both arranged in the air duct component 110. The cold end 1420 is used to cool the gas flowing out of the inner container 1100. The hot end 1410 is used to heat the gas flowing into the inner container 1100.

[0040] In the washing appliance 1000 of the present application, the evaporator 20 and the cold end 1420 can perform secondary cooling and dehumidification on the hot and humid air in the air duct component 110, thereby improving the dehumidification capacity of the heat pump drying system 1200. The condenser 30 and the hot end 1410 can perform secondary heating on the dry air in the air duct component 110, thereby improving the temperature rise of the heat pump drying system 1200, and thus improving the drying effect of the washing appliance 1000.

[0041] Specifically, the washing appliance 1000 is mainly used for washing various tableware. The inner container 1100 can serve as the main structure of the washing appliance 1000, and the washing chamber 1110 can serve as the place where the actual cleaning objects are placed. The washing chamber 1101 can be provided with a bracket for carrying and fixing tableware, and a water cup 1300 placed below the bracket. The water cup 1300 is used to collect and contain the water flow generated during the washing process. The washing appliance 1000 is, for example, a dishwasher.

[0042] The heat pump drying system 1200 is used to dry the wet and hot air flowing out of the inner container 1100, and heat the dried air so as to make the heated and dried air flow into the inner container 1100 again, so as to realize the effect of drying dishes and other objects. It should be pointed out that the dried air mentioned above is relative to the wet and hot air in the inner container 1100, and does not mean that the air does not contain water vapor at all.

[0043] The evaporator 20 is a heat exchanger in the heat pump drying system 1200. The evaporator 20 can be refrigerated when the heat pump drying system 1200 works, so as to absorb the heat of the air around the evaporator 20, so as to reduce the temperature of the air around the evaporator 20, so as to condense the gas flowing through the evaporator 20 to form condensed water, so as to realize the effect of drying the air.

[0044] The evaporator 20 is generally flat. The evaporator 20 can be placed vertically, or in other words, the thickness direction of the evaporator 20 is generally horizontally arranged, and the thickness direction of the evaporator 20 is generally parallel to the central axis of the flow guide channel 11, so as to increase the contact area between the gas in the flow guide channel 11 and the evaporator 20, which is beneficial to improve the effect of drying the air flowing through the evaporator 20.

[0045] The condenser 30 is also a heat exchanger in the heat pump drying system 1200. The condenser 30 can be heated when the heat pump drying system 1200 works, so as to absorb the heat of the surrounding air, so as to increase the temperature of the surrounding air, so as to realize the effect of drying dishes and other objects when the gas flowing through the condenser 30 enters the inner container 1100 of the washing appliance 1000 again.

[0046] The condenser 30 is generally flat. The condenser 30 can be placed vertically, or in other words, the thickness direction of the condenser 30 is generally horizontally arranged, and the thickness direction of the condenser 30 is generally parallel to the central axis of the flow guide channel 11, so as to increase the contact area between the gas in the flow guide channel 11 and the condenser 30, which is beneficial to improve the effect of heating the air flowing through the condenser 30.

[0047] The condenser 30 and the evaporator 20 can be in communication with the compressor 60 through a pipe 61. The compressor 60, the condenser 30, the throttling device 90 and the evaporator 20, as the main components of the heat pump drying system 1200 of the washing appliance 1000, can be connected in sequence to form a closed refrigerant circuit, so that the refrigerant as the refrigerant can circulate in the closed refrigerant circuit formed by the compressor 60, the condenser 30, the throttling device 90 and the evaporator 20, and the four can cooperate to enable the heat pump drying system 1200 to achieve the effect of drying objects such as tableware. When the heat pump drying system 1200 is in the drying stage, the compressor 60 works to pump the high-temperature and high-pressure refrigerant to the condenser 30 to heat the air, and the refrigerant and the air complete heat exchange and then flow out of the condenser 30, then the throttling device 90 is throttled to become low-temperature and low-pressure refrigerant, and then flows into the evaporator 20 to exchange heat and evaporate, and 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 enters the inner container 1100 of the washing appliance 1000 again. The throttling device 90 can be an expansion valve, and further, the throttling device 90 can be an electronic expansion valve.

[0048] The heat pipe assembly 1400 is a device that transfers thermal energy from one location to another. The heat pipe assembly 1400 includes a sealed enclosure containing a working fluid within the enclosure. In some embodiments, the working fluid can be water. In other embodiments, suitable working fluids for use in the heat pipe assembly 1400 include acetone, methanol, ethanol, or toluene. In other embodiments, any suitable fluid can be used for the working fluid, e.g., that is compatible with the material of the enclosure and suitable for the desired operating temperature range. The heat pipe assembly 1400 extends between the condenser 30 and the evaporator 20. The working fluid contained within the enclosure of the heat pipe assembly 1400 absorbs thermal energy at the evaporator 20, and the working fluid passes from the evaporator 20 to the condenser 30 in a gaseous state. The gaseous working fluid condenses to a liquid state, releasing thermal energy at the condenser 30.

[0049] The heat pipe assembly 1400 can include an internal wick structure (not shown) to transport the liquid working fluid from the condenser 30 to the evaporator 20 by capillary action. In some embodiments, the heat pipe assembly 1400 can be constructed and arranged such that the liquid working fluid returns to the evaporator 20 by gravity flow only. For example, the washing appliance 1000 can be constructed such that the heat pipe assembly 1400 can be arranged along a vertical direction V, with the condenser 30 located above the evaporator 20, such that the condensed working fluid in a liquid state can flow from the condenser 30 to the evaporator 20 by gravity. In such embodiments, the liquid working fluid can return to the evaporator 20 by gravity, and the wick structure can be omitted.

[0050] Please refer to Fig. 1, in some embodiments, the hot end 1410 and the cold end 1420 are connected by a heat-insulated connecting piece 1430. In this way, the heat-insulated connecting piece 1430 can prevent heat and cold from transferring between the hot end 1410 and the cold end 1420 through the connecting piece. The heat-insulated connecting piece 1430 can be a plastic connecting piece or other connecting piece with low thermal conductivity.

[0051] Please refer to Fig. 1, in some embodiments, the air duct component 110 is formed with a flow guide channel 11, both ends of the flow guide channel 11 are in communication with the washing chamber 1110, the evaporator 20, the condenser 30, the hot end 1410 and the cold end 1420 are arranged in the same flow guide channel 11, and along the flow direction of the flow guide channel 11, the evaporator 20 is located upstream of the condenser 30.

[0052] In this way, the evaporator 20 and the condenser 30 cooperate with each other, and also cool and dry the air in the same flow guide channel 11 before heating, so that the washing appliance 1000 can realize the drying effect of the dishes and other objects by using the heat pump drying system 1200.

[0053] Specifically, the flow guide channel 11 formed by the air duct component 110 is used to realize the effect of ventilation, so that the gas can circulate between the inner container 1100 of the washing appliance 1000 and the flow guide channel 11 to realize the effect of drying dishes and other objects. The flow guide channel 11 can be arranged in a curved shape or other shape to meet the flow requirements of the gas flow. The cross-sectional area of each position of the flow guide channel 11 can be different. For example, the cross-sectional area of the position of the flow guide channel 11 for accommodating the evaporator 20 and the condenser 30 is larger, and the cross-sectional area of other positions is smaller.

[0054] In one embodiment, the inner container 1100 is formed with an air inlet 1120 and an air outlet 1130, one end of the flow guide channel 11 is in communication with the washing chamber 1110 through the air outlet 1130, and the other end is in communication with the washing chamber 1110 through the air inlet 1120.

[0055] Please refer to Fig. 1, in some embodiments, along the flow direction of the flow guide channel 11, the cold end 1420 is located upstream of the hot end 1410.

[0056] In this way, the air duct component 110 can cool and dry the air in the flow guide channel 11 before heating, so that the washing appliance 1000 can realize the drying effect of the dishes and other objects by using the heat pump drying system 1200.

[0057] Specifically, the cold end 1420 and the hot end 1410 can be located between the evaporator 20 and the condenser 30, the evaporator 20 can be located between the cold end 1420 and the hot end 1410, or the condenser 30 can be located between the cold end 1420 and the hot end 1410.

[0058] Referring to FIG. 1, in some embodiments, the cold end 1420 is located upstream of the evaporator 20 along the air flow direction of the air flow channel 11. In this way, the cold end 1420 can pre-cool the humid hot air entering the evaporator 20, improve the dehumidification capacity of the heat pump drying system 1200, and save energy consumption.

[0059] Referring to FIG. 1, in some embodiments, the hot end 1410 is located between the evaporator 20 and the condenser 30. In this way, the hot end 1410 can pre-heat the dried air entering the condenser 30, improve the temperature rise of the heat pump drying system 1200, and thus improve the drying effect of the washing appliance 1000.

[0060] Referring to FIG. 1, in some embodiments, the cold end 1420, the evaporator 20, the hot end 1410, and the condenser 30 are arranged in sequence along the air flow direction of the air flow channel 11, and the washing appliance 1000 is configured to cool and dehumidify the air flowing out of the inner container 1100 by the cold end 1420 and the evaporator 20 first, and then heat the air by the hot end 1410 and the condenser 30 before returning to the inner container 1100. In this way, the gas from the inner container 1100 can first be cooled by the cold end 1420, then be cooled and dehumidified by the evaporator 20, the dried gas can be pre-heated by the hot end 1410 first, and then be heated by the condenser 30 before returning to the inner container 1100 again, and thus the cycle is realized to achieve the effect of drying tableware.

[0061] Specifically, the cold end 1420, the evaporator 20, the hot end 1410, and the condenser 30 can be arranged in a spaced manner or in an adjacent manner. For example, the cold end 1420 and the evaporator 20 are arranged in an adjacent manner, the hot end 1410 and the condenser 30 are arranged in an adjacent manner, and the evaporator 20 and the hot end 1410 are arranged in a spaced manner.

[0062] Referring to FIG. 1, in some embodiments, the air duct component 110 includes the air duct shell 10, the air inlet pipe 70, and the air outlet pipe 80, the air inlet pipe 70 and the air outlet pipe 80 are both in communication with the air duct shell 10, the air inlet pipe 70 and the air outlet pipe 80 are both connected to the inner container 1100, and the evaporator 20 and the condenser 30 are arranged in the air duct shell 10 in a spaced manner.

[0063] In this way, the air inlet pipe 70 can guide the gas in the inner container 1100 into the air duct shell 10, and the air outlet pipe 80 can guide the gas that has passed through the evaporator 20 and the condenser 30 in sequence into the inner container 1100, and the air inlet pipe 70, the air duct shell 10, and the air outlet pipe 80 together form the air duct component 110 to realize the circulation of the gas between the air duct shell 10 and the inner container 1100. In addition, arranging the evaporator 20 and the condenser 30 in the air duct shell 10 allows the air duct shell 10, the evaporator 20, and the condenser 30 to form an integral whole, which is convenient for assembling the washing appliance 1000 and is conducive to reducing the manufacturing cost of the washing appliance 1000.

[0064] Specifically, the air duct housing 10 is used for ventilation. The air duct housing 10 can be made of a material that is easy to form, such as plastic, so that the air duct housing 10 is easy to manufacture. The air duct housing 10 can be set to a specific external structure according to the position where the heat pump drying system 1200 is installed, so that the heat pump drying system 1200 is more compactly matched with the surrounding parts. The air duct housing 10 is in communication with the inner container 1100.

[0065] The air inlet pipe 70 and the air duct housing 10 can be an integrally formed structure or a detachable structure. Similarly, the air outlet pipe 80 and the air duct housing 10 can be an integrally formed structure or a detachable structure.

[0066] Since the humid hot air in the inner container 1100 flows upward, and the objects such as tableware are located below the top of the inner container 1100, in order to achieve a perfect drying effect, in some embodiments, the end of the air inlet pipe 70 connected to the inner container 1100 is higher than the end of the air outlet pipe 80 connected to the inner container 1100, so that the air inlet pipe 70 can more easily suck the humid hot air in the inner container 1100, and the air outlet pipe 80 can discharge the dry hot air to the position below the top of the inner container 1100, so as to better dry the objects such as tableware.

[0067] In some embodiments, the air inlet pipe 70 and the air outlet pipe 80 can be connected to the side wall of the inner container 1100, for example, the air inlet pipe 70 and the air outlet pipe 80 can be connected to the left side wall, the right side wall or the rear side wall of the inner container 1100, thereby reducing the interference between the air inlet pipe 70 and the air outlet pipe 80 and other parts of the washing appliance 1000, and improving the reliability of the washing appliance 1000.

[0068] In some embodiments, the air inlet pipe 70 can be connected to the top wall of the inner container 1100, and the air outlet pipe 80 is connected to the side wall of the inner container 1100.

[0069] Referring to FIG. 1, in some embodiments, the heat pump drying system 1200 includes a fan 40, which is used to form an air flow in the flow guide channel 11. In this way, the fan 40 can provide power for the gas flow in the flow guide channel 11. Specifically, the fan 40 can be an axial fan 40 or a centrifugal fan 40.

[0070] In some embodiments, the fan 40 is installed on the air duct housing 10. For example, the fan 40 can be installed on the air duct housing 10 by means of screws. In this way, the fan 40 and the air duct housing 10 form an integral whole, so that the heat pump drying system 1200 is easy to assemble.

[0071] Specifically, at least a part of the fan 40 is located in the air 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 the air around the condenser 30 to make the gas flow.

[0072] Referring to FIG. 2, in some embodiments, the air duct component 110 is formed with a first air guide channel 111 and a second air guide channel 112 independent of the first air guide channel 111, the first air guide channel 111 being in communication with the washing chamber 1110, both ends of the second air guide channel 112 being in communication with the washing chamber 1110, the evaporator 20 and the cold end 1420 being spaced apart in the first air guide channel 111, and the condenser 30 and the hot end 1410 being spaced apart in the second air guide channel 112.

[0073] In this way, the evaporator 20 and the condenser 30 are respectively arranged in two independent air guide channels 11, which can simplify the design and length of the air guide channel 11 and improve the flow efficiency and flow rate of the gas.

[0074] Specifically, the first air guide channel 111 and the second air guide channel 112 can have the same shape and size or different shapes and sizes. The first air guide channel 111 and the second air guide channel 112 can be in communication with the same side of the washing chamber 1110 or different sides of the washing chamber 1110. The evaporator 20 and the cold end 1420 can be fixed in the interior of the air duct shell 10 forming the first air guide channel 111 by clamping, threaded connection or the like, and the condenser 30 and the hot end 1410 can be fixed in the interior of the air duct shell 10 forming the second air guide channel 112 by clamping, threaded connection or the like.

[0075] Referring to FIG. 2, in some embodiments, both ends of the first air guide channel 111 are in communication with the washing chamber 1110, the washing appliance 1000 is configured to return the air flowing out of the inner container 1100 to the inner container 1100 through the cold end 1420 and the evaporator 20, and return the air flowing out of the inner container 1100 to the inner container 1100 after being heated by the hot end 1410 and the condenser 30. In this way, the first air guide channel 111 can make the air after being cooled and dehumidified enter the washing chamber 1110 for recycling, thereby increasing the utilization rate of the gas.

[0076] Referring to FIG. 2, in some embodiments, the inner container 1100 is formed with an air inlet 1120 and an air outlet 1130, one end of the first air guide channel 111 is in communication with the washing chamber 1110 through the air outlet 1130, and the other end is in communication with the washing chamber 1110 through the air inlet 1120, the air inlet 1120 and the air outlet 1130 being located on different side walls of the inner container 1100.

[0077] In this way, the two ends of the first flow channel 111 are connected to different side walls of the inner container 1100, increasing the flow path of the gas, thereby improving the condensation effect of the gas.

[0078] Specifically, the gas inlet 1120 and the gas outlet 1130 penetrate the side wall of the inner container 1100 in the thickness direction of the inner container 1100. The inner container 1100 can be formed with two gas inlets 1120 and two gas outlets 1130, one end of the first flow channel 111 and one end of the second flow channel 112 respectively communicate with the washing chamber 1110 through one gas outlet 1130, and the other end of the first flow channel 111 and the other end of the second flow channel 112 respectively communicate with the washing chamber 1110 through one gas inlet 1120.

[0079] The two gas inlets 1120 can be located on the same side wall of the inner container 1100, or can be located on different side walls of the inner container 1100. Similarly, the two gas outlets 1130 can be located on the same side wall of the inner container 1100, or can be located on different side walls of the inner container 1100.

[0080] The gas inlet 1120 and the gas outlet 1130 can be located on two adjacent side walls of the inner container 1100, for example, the gas inlet 1120 is located on the right side wall of the inner container 1100, and the gas outlet 1130 is located on the rear side wall of the inner container 1100. The gas inlet 1120 and the gas outlet 1130 can be located on two opposite side walls of the inner container 1100, for example, the gas inlet 1120 is located on the left side wall of the inner container 1100, and the gas outlet 1130 is located on the right side wall of the inner container 1100.

[0081] Referring to FIG. 3, in some embodiments, one end of the first flow channel 111 communicates with the washing chamber 1110, and the other end communicates with the outside of the washing chamber 1110, the washing appliance 1000 is configured to discharge the air flowing out of the inner container 1100 to the outside after being cooled by the cold end 1420 and the evaporator 20, and the air flowing out of the inner container 1100 is returned to the inner container 1100 after being heated by the hot end 1410 and the condenser 30. In this way, the first flow channel 111 can discharge the air after being cooled and dehumidified from the washing appliance 1000, reducing the generation of condensed water in the inner container 1100.

[0082] Specifically, the inner container 1100 is formed with one gas inlet 1120 and two gas outlets 1130, one end of the first flow channel 111 communicates with the washing chamber 1110 through one gas outlet 1130, and the other end communicates with the outside of the washing chamber 1110, one end of the second flow channel 112 communicates with the washing chamber 1110 through the other gas outlet 1130, and the other end communicates with the washing chamber 1110 through one gas inlet 1120.

[0083] Please refer to FIG. 2 and FIG. 3, in some embodiments, along the flow direction of the first flow channel 111, the cold end 1420 is located upstream of the evaporator 20; and / or, along the flow direction of the second flow channel 112, the hot end 1410 is located upstream of the condenser 30.

[0084] In this way, the cold end 1420 can pre-cool the humid hot air entering the evaporator 20, improve the dehumidification capacity of the heat pump drying system 1200, save energy consumption, and the hot end 1410 can pre-heat the air entering the condenser 30, improve the temperature rise of the heat pump drying system 1200, thereby improving the drying effect of the washing appliance 1000.

[0085] Specifically, along the flow direction of the first flow channel 111, the cold end 1420 can be located upstream of the evaporator 20, or along the flow direction of the second flow channel 112, the hot end 1410 can be located upstream of the condenser 30, or along the flow direction of the first flow channel 111, the cold end 1420 can be located upstream of the evaporator 20, and along the flow direction of the second flow channel 112, the hot end 1410 can be located upstream of the condenser 30.

[0086] In one embodiment, the number of fans 40 is two, and the two fans 40 are located in the first flow channel 111 and the second flow channel 112 respectively, one of the fans 40 can be located upstream of the cold end 1420, or between the cold end 1420 and the evaporator 20, and the other fan 40 can be located upstream of the hot end 1410, or between the hot end 1410 and the condenser 30.

[0087] In summary, please refer to FIG. 1, in one embodiment, after the washing appliance 1000 completes washing and enters the drying mode, the heat pump drying system 1200, the heat pipe assembly 1400 and the fan 40 start to work, the fan 40 makes the gas circulate in the inner container 1100 and the flow channel 11, in the flow channel 11, the gas from the washing chamber 1110 is pre-cooled by the cold end 1420 and then passes through the evaporator 20, the evaporator 20 can cool the pre-cooled air again and form condensate water; the air dried by the evaporator 20 is pre-heated by the hot end 1410 and then passes through the condenser 30, the condenser 30 can heat the pre-heated air again, and the heated air enters the inner container 1100 to dry the tableware, so as to realize the effect of drying the tableware.

[0088] Please refer to FIG. 2, in one embodiment, after the washing appliance 1000 enters the drying mode after the washing is completed, the heat pump drying system 1200, the heat pipe assembly 1400 and the fan 40 start to work, the fan 40 makes the gas circulate in the inner barrel 1100, the first flow channel 111 and / or the gas circulates in the inner barrel 1100, the second flow channel 112, in the first flow channel 111, the gas from the washing chamber 1110 is pre-cooled by the cold end 1420 and then passes through the evaporator 20, the evaporator 20 can cool the pre-cooled air again and form condensed water, the air dried by the evaporator 20 enters the inner barrel 1100; in the second flow channel 112, the gas from the washing chamber 1110 is pre-heated by the hot end 1410 and then passes through the condenser 30, the condenser 30 can heat the pre-heated air again, the heated air enters the inner barrel 1100 and mixes with the dry air to dry the tableware, so as to realize the effect of drying the tableware.

[0089] Please refer to FIG. 3, in one embodiment, after the washing appliance 1000 enters the drying mode after the washing is completed, the heat pump drying system 1200, the heat pipe assembly 1400 and the fan 40 start to work, the fan 40 makes the gas circulate in the inner barrel 1100, the first flow channel 111 and / or the gas circulates in the inner barrel 1100, the second flow channel 112, in the first flow channel 111, the gas from the washing chamber 1110 is pre-cooled by the cold end 1420 and then passes through the evaporator 20, the evaporator 20 can cool the pre-cooled air again and form condensed water, the air dried by the evaporator 20 is discharged from the washing appliance 1000 and enters the atmospheric environment; in the second flow channel 112, the gas from the washing chamber 1110 is pre-heated by the hot end 1410 and then passes through the condenser 30, the condenser 30 can heat the pre-heated air again, the heated air enters the inner barrel 1100 to dry the tableware, so as to realize the effect of drying the tableware.

[0090] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0091] Although the embodiments of the present application have been shown and described above, it is to be understood that the above-described embodiments are merely exemplary, and are not to be construed as limiting the present application, and that modifications, substitutions, replacements and variations of the above-described embodiments can be made by those skilled in the art within the scope of the present application.

Claims

1. A washing appliance characterised in that, Comprise: a liner provided with a washing chamber; a heat pump drying system, the heat pump drying system comprising an air duct component, a compressor, a condenser, a throttling device and an evaporator constituting a closed refrigerant circuit, the air duct component being in communication with the washing chamber, the evaporator and the condenser being both arranged in the air duct component, the evaporator being used for cooling the gas flowing out of the liner, the condenser being used for heating the gas flowing to the liner; and a heat pipe assembly, the heat pipe assembly comprising a hot end and a cold end, the hot end and the cold end being both arranged in the air duct component, the cold end being used for cooling the gas flowing out of the liner, the hot end being used for heating the gas flowing to the liner. The air duct component is formed with a flow guide channel, both ends of the flow guide channel being in communication with the washing chamber, the evaporator, the condenser, the hot end and the cold end being arranged in the same flow guide channel, along the flow direction of the flow guide channel, the evaporator is located upstream of the condenser.

2. The washing appliance according to claim 1, characterized in that, Along the flow direction of the flow guide channel, the cold end is located upstream of the hot end; and / or, 3. The washing appliance according to claim 2, characterized in that, Along the flow direction of the flow guide channel, the cold end is located upstream of the evaporator; and / or, The hot end is located between the evaporator and the condenser. Along the flow direction of the flow guide channel, the cold end, the evaporator, the hot end and the condenser are arranged in sequence, the washing appliance is configured to cool and dehumidify the air flowing out of the liner by the cold end and the evaporator first, and then heat the air by the hot end and the condenser before returning the air to the liner.

4. The washing appliance according to claim 2, characterized in that, The air duct component is formed with a first flow guide channel and a second flow guide channel independent of the first flow guide channel, the first flow guide channel being in communication with the washing chamber, both ends of the second flow guide channel being in communication with the washing chamber, the evaporator and the cold end being arranged in the first flow guide channel, the condenser and the hot end being arranged in the second flow guide channel.

5. The washing appliance according to any one of claims 1-4, characterized in that, Both ends of the first flow guide channel are in communication with the washing chamber, the washing appliance is configured to cool the air flowing out of the liner by the cold end and the evaporator and return the air to the liner, and the air flowing out of the liner is heated by the hot end and the condenser before returning the air to the liner.

6. The laundry appliance according to claim 5, characterized by the fact that, The liner is formed with an air inlet and an air outlet, one end of the first flow guide channel is in communication with the washing chamber through the air outlet, and the other end is in communication with the washing chamber through the air inlet, the air inlet and the air outlet are located on different side walls of the liner.

7. The washing appliance according to claim 6, characterized in that, One end of the first flow guide channel is in communication with the washing chamber, and the other end is in communication with the outside of the washing chamber, the washing appliance is configured to cool the air flowing out of the liner by the cold end and the evaporator and discharge the air to the outside, and the air flowing out of the liner is heated by the hot end and the condenser before returning the air to the liner.

8. The washing appliance according to claim 5, characterized in that, Along the flow direction of the first flow guide channel, the cold end is located upstream of the evaporator; and / or, along the flow direction of the second flow guide channel, the hot end is located upstream of the condenser.

9. The washing appliance according to any one of claims 5-8, characterized in that, ​ 10. The washing appliance according to any one of the preceding claims 1-9, characterized in that, The hot end is connected to the cold end by a thermally insulating connection.

Citation Information

Patent Citations

  • Washing appliance

    CN108888215A

  • Washing electric appliance

    CN109077688A

  • Heat pump type dish-washing machine and control method thereof

    CN111110155A

  • Heat pump drying machine with heat pipe heat recovery device

    CN203758206U

  • Energy -saving stoving hot water machine

    CN206330289U