Air duct structure and washing electric appliance

Abstract

The utility model discloses an air duct structure and a washing electric appliance. The heat pump drying system is used for washing an electric appliance, the air duct structure comprises a heat exchange shell and a fan, a first mounting groove and a second mounting groove are formed in the heat exchange shell and are arranged at an interval, the fan is mounted in the first mounting groove, the air duct structure comprises a heat exchanger, and the heat exchanger is arranged in the second mounting groove. And the heat exchanger is mounted in the second mounting groove. According to the air duct structure, the fan is installed in the first installation groove of the heat exchange shell, the problem that the operation space is limited when the fan is independently installed in the washing electric appliance is solved, and therefore the installation operation of the fan can be simplified.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an air duct structure and a washing appliance. Background Technology

[0002] In related technologies, washing appliances include an inner tank and a heat pump drying system, which can be used to dry dishes. Currently, the heat pump drying system includes a fan, and the air generated by the fan is introduced into the inner tank. However, the limited operating space inside the washing appliance makes the installation and operation of the fan complex. Utility Model Content

[0003] This utility model provides an air duct structure and a washing appliance to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a duct structure for a heat pump drying system used for washing appliances. The duct structure includes a heat exchange shell and a fan. A first mounting groove and a second mounting groove are formed inside the heat exchange shell. The first mounting groove and the second mounting groove are spaced apart. The fan is installed in the first mounting groove. The duct structure also includes a heat exchanger, which is installed in the second mounting groove.

[0005] In the above-mentioned air duct structure, the fan is installed in the first mounting slot of the heat exchange shell, which avoids the problem of limited operating space caused by the fan being installed alone inside the washing appliance, thereby simplifying the installation and operation of the fan.

[0006] In some embodiments, the heat exchange housing includes an outer wall and a partition, the partition separating the first mounting slot and the second mounting slot, and the fan is engaged between the outer wall and the partition.

[0007] The aforementioned duct structure allows the fan to be securely installed in the first mounting slot.

[0008] In some embodiments, the outer wall is provided with a first air inlet and a first air outlet, the partition is provided with an air passage, and the fan includes a second air inlet and a second air outlet. The second air inlet is connected to the first air inlet through the air passage, and the second air outlet is connected to the first air outlet.

[0009] In the above-mentioned duct structure, while making compact use of the space within the duct structure, the air that has exchanged heat with the heat exchanger can flow in a directional manner to the fan.

[0010] In some embodiments, the area of ​​the air vent is larger than the area of ​​the second air inlet, and the air vent and the second air inlet are coaxially arranged.

[0011] The aforementioned duct structure ensures airflow efficiency to a certain extent.

[0012] In some embodiments, the heat exchange housing includes an elastic element that is sleeved on at least a portion of the surface of the fan, and at least a portion of the elastic element is disposed between the fan and the sidewall of the first mounting groove.

[0013] The aforementioned duct structure can absorb and buffer the noise and vibration generated during the operation of the fan, thereby extending the service life of the fan to a certain extent.

[0014] In some embodiments, the heat exchanger includes an evaporator and a condenser, which are spaced apart and installed in the second mounting slot, with the condenser located between the evaporator and the second air inlet of the fan.

[0015] The aforementioned duct structure allows hot, dry air to enter the fan.

[0016] In some embodiments, the bottom wall of the second mounting groove is provided with a first rib and a second rib. The first rib, the second rib, the bottom wall and the side wall of the second mounting groove together form a first water receiving area. The second rib, the partition and the bottom wall and the side wall of the second mounting groove together form a second water receiving area. The second rib is provided with a first opening. The first opening connects the first water receiving area and the second water receiving area.

[0017] In the above-mentioned duct structure, the first water receiving area and the second water receiving area can be used to receive condensate formed on the surface of the heat exchanger.

[0018] In some embodiments, a third rib is provided on the bottom wall of the second mounting groove. The third rib, together with the bottom wall and side wall of the second mounting groove, forms a third water receiving area. The third water receiving area is separated from the second water receiving area and the first water receiving area by the third rib. The third rib is provided with a second opening, and the second water receiving area communicates with the third water receiving area through the second opening.

[0019] In the above-mentioned duct structure, the third water receiving area can receive condensate together with the first and second water receiving areas.

[0020] In some embodiments, the heat exchange shell is provided with a drain outlet, the bottom of the third water receiving area is inclined to the drain outlet, the first water receiving area is located below the evaporator, the second water receiving area is located below the condenser, and the first water receiving area and the second water receiving area are connected to the drain outlet through the third water receiving area.

[0021] In the above-mentioned duct structure, the collected condensate can be discharged to the outside of the heat exchange shell through the drain outlet.

[0022] In some embodiments, the water-blocking ribs are provided on the inner wall of the first mounting groove, forming a water-receiving groove, and the outer shell of the second air outlet of the fan is provided with a flange, which abuts against the water-blocking ribs.

[0023] The above-mentioned duct structure can prevent condensate formed at the first air outlet from flowing into the fan.

[0024] In some embodiments, the heat exchange housing is provided with a first air outlet and a drain outlet, the opening of the water receiving tank faces the first air outlet, the tank wall of the water receiving tank is provided with a water guiding hole, the water guiding hole is formed on the partition plate, the water guiding hole connects the water receiving tank and the second mounting groove, and the water receiving tank is connected to the drain outlet through the water guiding hole.

[0025] In the above-mentioned air duct structure, the condensate formed at the first air outlet can be discharged to the outside of the heat exchange shell.

[0026] In some embodiments, the washing appliance includes a base with an overflow detection mechanism, and an overflow port is provided on the heat exchange housing. The overflow port is configured such that when condensate flows out of the overflow port, the condensate flowing out can be detected by the overflow detection mechanism.

[0027] The aforementioned air duct structure reduces the contact time between the equipment installed inside the heat exchange shell and the condensate to a certain extent, which can remind users or maintenance personnel to deal with faults in a timely manner, thereby ensuring the safe use of washing appliances.

[0028] In some embodiments, the heat exchange housing includes an outer wall and a partition, a first mounting groove is formed between the partition and the outer wall, the fan is engaged between the outer wall and the partition, and the water guide hole is formed on the partition.

[0029] The aforementioned duct structure prevents condensate from accumulating in the first mounting slot, thus avoiding the risk of condensate entering the fan.

[0030] In some embodiments, the second mounting groove is provided with a slot, and the heat exchanger includes a side plate that is engaged with the slot to fix the heat exchanger in the second mounting groove.

[0031] The above-mentioned duct structure allows the heat exchanger to be securely installed in the second mounting groove of the heat exchange shell.

[0032] In some embodiments, the slot includes a first slot and a second slot. The first slot is disposed on the side wall of the second mounting slot, and the second slot is disposed on the bottom wall of the second mounting slot. The two side edges of the side plate are engaged in the first slot, and the lower edge of the side plate can abut against the second slot.

[0033] In the above-mentioned air duct structure, the heat exchanger can be stably installed in the second mounting slot through the cooperation of the side plate and the first and second slots.

[0034] This utility model provides a washing appliance, the washing appliance comprising:

[0035] The inner liner, wherein the inner liner is provided with a first through hole and a second through hole, the first through hole and the second through hole being spaced apart; and

[0036] A heat pump drying system, wherein the heat pump drying system includes the air duct structure described in any of the above embodiments, the heat exchange shell is provided with a first air inlet and a first air outlet, the first air inlet is connected to a first through hole, and the first air outlet is connected to a second through hole;

[0037] The heat pump drying system includes a compressor and a throttling device, and the heat exchanger includes an evaporator and a condenser. The compressor, the condenser, the throttling device, and the evaporator constitute a closed refrigerant circuit.

[0038] In the aforementioned washing appliances, the fan is installed in the first mounting slot of the heat exchange housing, avoiding the problem of limited operating space caused by installing the fan alone inside the washing appliance, thereby simplifying the installation and operation of the fan.

[0039] Additional aspects and advantages of the embodiments of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0040] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is a partial structural schematic diagram of the washing appliance according to an embodiment of the present utility model;

[0042] Figure 2 yes Figure 1 A schematic diagram of the cross-section of a washing appliance along line AA;

[0043] Figure 3 This is an exploded view of the air duct structure according to an embodiment of the present invention;

[0044] Figure 4 This is a partial structural schematic diagram of the air duct structure according to an embodiment of the present utility model;

[0045] Figure 5 yes Figure 4 A schematic diagram of the cross-section of the air duct structure along line BB;

[0046] Figure 6 This is another structural schematic diagram of the air duct structure according to an embodiment of the present utility model;

[0047] Figure 7 yes Figure 6 A schematic diagram of the cross-section of the air duct structure along the CC line;

[0048] Figure 8 This is a cross-sectional schematic diagram of the air duct structure according to an embodiment of the present invention;

[0049] Figure 9 This is a top view of the heat exchange shell according to an embodiment of the present invention.

[0050] Explanation of key component symbols:

[0051] Washing appliance-100, air duct structure-10, heat exchange shell-11, first mounting groove-111, second mounting groove-112, first water receiving area-112a, second water receiving area-112b, third water receiving area-112c, first rib-1131, second rib-1132, third rib-1133, first opening-113a, second opening-113b, first slot-1134, second slot-1135, outer wall-115, first air inlet-115a, first air outlet-115b, upper outer wall Enclosure-1151, Lower outer wall-1152, Partition-116, Air vent-116a, Drain-117, Water collection trough-118, Water guide hole-118a, Water baffle-118b, Overflow outlet-119, Fan-12, Second air inlet-121, Second air outlet-122, Flange-123, Elastic element-13, Heat exchanger-15, Evaporator-151, Condenser-152, Side plate-153, Water pump-16, Flow guide-17, Base-30, Overflow trough-31, Overflow detection mechanism-50. Detailed Implementation

[0052] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0053] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0057] Please see Figures 1 to 9This utility model provides a duct structure 10 for a heat pump drying system. The heat pump drying system is used for a washing appliance 100. The duct structure 10 includes a heat exchange shell 11 and a fan 12. A first mounting groove 111 and a second mounting groove 112 are formed in the heat exchange shell 11. The first mounting groove 111 and the second mounting groove 112 are spaced apart. The fan 12 is installed in the first mounting groove 111. The duct structure 10 includes a heat exchanger 15, which is installed in the second mounting groove 112.

[0058] In the aforementioned air duct structure 10, the fan 12 is installed in the first mounting slot 111 of the heat exchange housing 11, which avoids the problem of limited operating space caused by the fan 12 being installed alone inside the washing appliance 100, thereby simplifying the installation operation of the fan 12.

[0059] Specifically, the washing appliance 100 is an electrical device used for cleaning, disinfecting, or drying items. Optionally, please refer to... Figures 8 to 9 The washing appliance 100 can be a heat pump dishwasher. The washing appliance 100 includes an inner tank and a heat pump drying system. The inner tank holds the items to be processed, and the heat pump drying system provides a high-efficiency heat source to the inner tank, thereby achieving temperature control and drying of the items inside. The heat pump drying system includes a heat exchanger 15 and a fan 12. Based on the reverse Carnot cycle, the air inside the inner tank first exchanges heat with the refrigerant through the heat exchanger 15 to form high-temperature, dry air. This air is then driven into the inner tank by the fan 12 to dry the items inside. The humid, hot air formed after drying inside the inner tank can re-enter the heat pump drying system for heat exchange and circulation. Through continuous circulation, air flows between the inner tank and the heat pump drying system, thereby achieving efficient drying of the items.

[0060] In related technologies, heat exchangers and fans in heat pump drying systems are typically installed separately to meet different functional requirements. However, due to the compact internal space layout of washing machines, the area for fan installation is extremely limited. This forces installers to complete the installation within a confined space, increasing the difficulty and complexity of installing the fan separately within the washing machine, and potentially adversely affecting the long-term operational stability and maintenance of the washing machine. Therefore, a washing machine that fully considers the feasibility and convenience of fan installation is needed to improve the overall performance and reliability of the washing machine.

[0061] In this embodiment of the utility model, please refer to Figure 3 , Figure 4 and Figure 6The air duct structure 10 of the heat pump drying system includes a heat exchange housing 11. A first mounting groove 111 and a second mounting groove 112 are formed within the heat exchange housing 11. The first mounting groove 111 is used to install a fan 12, and the second mounting groove 112 is used to install a heat exchanger 15. Because the first mounting groove 111 and the second mounting groove 112 are spaced apart, the heat exchanger 15 and the fan 12 can be installed in independent mounting grooves. Therefore, integrating the fan 12 into the heat exchange housing 11 where the heat exchanger 15 is installed avoids the problem of limited operating space caused by the fan 12 being installed separately inside the washing appliance 100. This optimizes the internal layout of the washing appliance 100 to a certain extent. When the fan 12 needs to be installed, it is not necessary to disassemble the entire washing appliance 100 or affect the normal operation of other components, thus simplifying the installation operation of the fan 12.

[0062] In some embodiments, the heat exchange housing 11 includes an outer wall 115 and a partition 116, the partition 116 separating a first mounting slot 111 and a second mounting slot 112, and the fan 12 is engaged between the outer wall 115 and the partition 116.

[0063] This allows the fan 12 to be securely installed in the first mounting slot 111.

[0064] Specifically, please combine Figure 3 and Figure 4 The outer perimeter wall 115 is the outer closed structure of the heat exchange shell 11. The outer perimeter wall 115 includes an upper outer perimeter wall 1151 and a lower outer perimeter wall 1152. The upper outer perimeter wall 1151 covers the lower outer perimeter wall 1152 to enclose and protect components located inside the heat exchange shell 11, including but not limited to the heat exchanger 15 and the fan 12. A partition 116 is located inside the lower outer perimeter wall 1152 and connected to it. The partition 116 separates the first mounting slot 111 and the second mounting slot 112. The first mounting slot 111 is used to install the fan 12. Optionally, the size of the first mounting slot 111 is adapted to the size of the fan 12, and the fan 12 can be locked between the outer perimeter wall 115 and the partition 116, so that the outer shell of the fan 12 is tightly fitted with the slot wall of the first mounting slot 111. This avoids, to a certain extent, the loosening or displacement of the fan 12 after it is installed in the first mounting slot 111, thus achieving a stable installation of the fan 12.

[0065] Optionally, the lower outer wall 1152 and the partition 116 are integrally formed.

[0066] In some embodiments, the outer wall 115 is provided with a first air inlet 115a and a first air outlet 115b, the partition 116 is provided with an air passage 116a, and the fan 12 includes a second air inlet 121 and a second air outlet 122. The second air inlet 121 is connected to the first air inlet 115a through the air passage 116a, and the second air outlet 122 is connected to the first air outlet 115b.

[0067] In this way, while making compact use of the space within the duct structure 10, the air that has exchanged heat with the heat exchanger 15 can flow in a directional manner to the fan 12.

[0068] Specifically, please combine Figure 3 The upper outer wall 1151 is provided with a first air inlet 115a and a first air outlet 115b, which are respectively connected to the inner tank of the washing appliance 100 to form an air flow path, so that the heat pump drying system works with the inner tank to achieve air circulation.

[0069] When the heat pump drying system starts working, air from inside the inner tank enters the heat exchange shell 11 through the first air inlet 115a. It first exchanges heat with the heat exchanger 15 installed in the second mounting slot 112, thus forming high-temperature dry air. A partition 116 is located between the first mounting slot 111 and the second mounting slot 112 and is provided with an air passage 116a. The high-temperature dry air enters the first mounting slot 111 through the air passage 116a and moves to the second air inlet 121 of the fan 12. When the fan 12 is running, the impeller inside the fan 12 rotates, creating a negative pressure zone that drives the air at the second air inlet 121 to the second air outlet 122 of the fan 12. The air then returns to the inner tank through the first air outlet 115b, thus drying the items carried inside the inner tank. Therefore, while making compact use of the space within the air duct structure 10, it allows the air after heat exchange with the heat exchanger 15 to flow directionally to the fan 12, improving the working efficiency of the heat pump drying system to a certain extent.

[0070] In some embodiments, the area of ​​the air vent 116a is larger than the area of ​​the second air inlet 121, and the air vent 116a and the second air inlet 121 are coaxially arranged.

[0071] In this way, the efficiency of airflow is guaranteed to a certain extent.

[0072] Specifically, please combine Figure 5 When the air, after heat exchange with the heat exchanger 15, enters the second air inlet 121 of the fan 12 through the air outlet 116a, the larger area of ​​the air outlet 116a disperses the airflow, preventing localized high-speed airflow from impacting the fan 12 impeller and allowing the airflow to enter the fan 12 more evenly, thus increasing the airflow volume. Simultaneously, the air outlet 116a and the second air inlet 121 are coaxial, meaning the axis of the air outlet 116a coincides with the axis of the second air inlet 121, reducing airflow loss during operation. Therefore, airflow efficiency is guaranteed to a certain extent, thereby ensuring the working performance of the fan 12.

[0073] In some embodiments, the heat exchange housing 11 includes an elastic element 13, which is sleeved on at least a portion of the surface of the fan 12, and at least a portion of the elastic element 13 is disposed between the fan 12 and the side wall of the first mounting groove 111.

[0074] In this way, the noise and vibration generated during the operation of the fan 12 can be absorbed and buffered, thus extending the service life of the fan 12 to a certain extent.

[0075] Specifically, during operation, the fan 12 will generate noise and vibration due to the rotation of the impeller and mechanical transmission inside the fan 12, and this noise and vibration will be transmitted to other components around the fan 12, affecting the working performance of the washing appliance 100.

[0076] In this embodiment of the utility model, please refer to Figure 2 and Figure 3 The fan 12 is installed in the first mounting groove 111 of the heat exchange housing 11. An elastic element 13 is sleeved on at least a portion of the surface of the fan 12. Therefore, when the fan 12 is running, the noise and vibration generated by the fan 12 can be absorbed by the sleeved elastic element 13, thereby reducing noise and vibration and extending the service life of the fan 12 to a certain extent. Since at least a portion of the elastic element 13 is located between the fan 12 and the side wall of the first mounting groove 111, noise and vibration can be prevented from being transmitted to other components around the fan 12, reducing wear and damage to the fan 12 and other surrounding components caused by vibration. This, to a certain extent, ensures the working performance of the washing appliance 100 and reduces the maintenance cost of the washing appliance 100.

[0077] Optionally, the elastic element 13 may include, but is not limited to, shock-absorbing sleeves, rubber damping pads, silicone buffer blocks, etc., and this utility model does not specifically limit it in this regard. In one example, please refer to... Figure 2 Elastic element 13 is a shock-absorbing sleeve.

[0078] In some embodiments, the heat exchanger 15 includes an evaporator 151 and a condenser 152, which are spaced apart and installed in a second mounting groove 112. The condenser 152 is located between the evaporator 151 and the second air inlet 121 of the fan 12.

[0079] In this way, hot and dry air can enter the fan 12.

[0080] Specifically, please combine Figure 6 and Figure 7There is a gap between the evaporator 151 and the condenser 152, so that the condensate produced by the evaporator 151 during operation can flow directly to the bottom wall of the second mounting groove 112 without contacting the condenser 152. The condenser 152 is located between the evaporator 151 and the second air inlet 121 of the fan 12. Therefore, during the operation of the heat pump drying system, the air in the inner tank enters the heat exchange shell 11 through the first air inlet 115a, and first exchanges heat with the low-temperature, low-pressure liquid refrigerant through the evaporator 151, causing the water vapor in the air to condense into water. The dehumidified air then exchanges heat with the high-temperature, high-pressure liquid refrigerant through the condenser 152, thus forming high-temperature dry air. The high-temperature dry air enters the fan 12 and is driven by the fan 12 to return to the inner tank through the first air outlet 115b, thereby drying the items carried in the inner tank.

[0081] In some embodiments, the bottom wall of the second mounting groove 112 is provided with a first protruding rib 1131 and a second protruding rib 1132. The first protruding rib 1131, the second protruding rib 1132, together with the bottom wall and the side wall of the second mounting groove 112, form a first water receiving area 112a. The second protruding rib 1132, together with the partition 116 and the bottom wall and the side wall of the second mounting groove 112, form a second water receiving area 112b. The second protruding rib 1132 is provided with a first opening 113a, which connects the first water receiving area 112a and the second water receiving area 112b.

[0082] Thus, the first water receiving area 112a and the second water receiving area 112b can be used to receive condensate formed on the surface of the heat exchanger 15.

[0083] Specifically, during the operation of the heat pump drying system, the air inside the inner tank enters the heat exchange shell 11 through the first air inlet 115a. When it exchanges heat with the low-temperature and low-pressure liquid refrigerant in the heat exchanger 15, the water vapor in the air will condense into liquid water on the surface of the heat exchanger 15 when it encounters the cold.

[0084] Please combine Figure 6 , Figure 7 and Figure 9 The first protruding rib 1131 and the second protruding rib 1132 provided on the bottom wall of the second mounting groove 112 together with the bottom wall and the side wall of the second mounting groove 112 form a first water receiving area 112a. The second protruding rib 1132 together with the partition 116 and the bottom wall and the side wall of the second mounting groove 112 form a second water receiving area 112b. A large amount of condensate generated on the surface of the heat exchanger 15 can flow along the surface of the heat exchanger 15 to the first water receiving area 112a and the second water receiving area 112b by gravity.

[0085] Please combine Figure 9The second rib 1132 has a first opening 113a, through which the first water-receiving area 112a communicates with the second water-receiving area 112b. This allows the condensate collected in the first water-receiving area 112a to flow to the second water-receiving area 112b through the first opening 113a, thereby expanding the area of ​​the water-receiving region. Therefore, the condensate of the same volume is more dispersed, and the liquid level of the condensate accumulated on the bottom wall of the second mounting groove 112 is reduced, preventing it from contacting the bottom of the heat exchanger 15.

[0086] Optionally, the first rib 1131, the second rib 1132, and the third rib 1133 can be integrally formed with the bottom wall of the second mounting groove 112.

[0087] In some embodiments, a third rib 1133 is provided on the bottom wall of the second mounting groove 112. The third rib 1133, together with the bottom wall and side wall of the second mounting groove 112, forms a third water receiving area 112c. The third water receiving area 112c is separated from the second water receiving area 112b and the first water receiving area 112a by the third rib 1133. The third rib 1133 is provided with a second opening 113b. The second water receiving area 112b is connected to the third water receiving area 112b through the second opening 113b.

[0088] Thus, the third water receiving area 112c can receive condensate together with the first water receiving area 112a and the second water receiving area 112b.

[0089] Specifically, please combine Figure 6 and Figure 9 A third protruding rib 1133, provided on the bottom wall of the second mounting groove 112, together with the bottom wall and side wall of the second mounting groove 112, forms a third water-receiving area 112c, which is located below the pipe connected to the interface of the heat exchanger 15. In some cases of high air humidity, condensate may also be generated on these pipes, and the third water-receiving area 112c can be used to collect this condensate.

[0090] The second water receiving area 112b is connected to the third water receiving area 112c through the second opening 113b provided by the third rib 1133, so that the condensate collected by the first water receiving area 112a and the second water receiving area 112b can flow to the third water receiving area 112c through the second opening 113b, thereby further expanding the area of ​​the water receiving area and making the distribution of the same volume of condensate more dispersed.

[0091] In some embodiments, the heat exchange housing 11 is provided with a drain outlet 117, the bottom of the third water receiving area 112c is inclined to the drain outlet 117, the first water receiving area 112a is located below the evaporator 151, the second water receiving area 112b is located below the condenser 152, and the first water receiving area 112a and the second water receiving area 112b are connected to the drain outlet 117 through the third water receiving area 112c.

[0092] In this way, the collected condensate can be discharged to the outside of the heat exchange shell 11 through the drain outlet 117.

[0093] Specifically, please combine Figure 6 , Figure 7 and Figure 9 The first water-receiving area 112a is located below the evaporator 151, and the second water-receiving area 112b is located below the condenser 152. A large amount of condensate generated on the surface of the evaporator 151 can flow along its surface to the first water-receiving area 112a by gravity. Since some condensate will also be generated on the condenser 152 under conditions of high humidity, the second water-receiving area 112b can be used to collect this condensate. The condensate collected in the first water-receiving area 112a flows through the first opening 113a to the second water-receiving area 112b, where it merges with the condensate collected in the second water-receiving area 112b. Then, it flows through the second opening 113b to the third water-receiving area 112c, where it merges with the condensate collected in the third water-receiving area 112c. Because the bottom of the third water-receiving area 112c is inclined towards the drain outlet 117, the condensate can flow to the drain outlet 117 and be discharged outside the heat exchange shell 11. Therefore, the condensate generated on the surface of the heat exchanger 15 can be discharged outside the heat exchange shell 11, which to a certain extent avoids the accumulation of condensate and the resulting decrease in heat exchange rate.

[0094] Please combine Figure 6 A water pump 16 may be provided outside the heat exchange shell 11. One end of the water pump 16 is connected to the drain outlet 117 through a pipe, and the other end is connected to the water storage tank inside the washing appliance 100 or the water storage device outside the washing appliance 100 through a pipe. Thus, the water pump 16 can pump the condensate flowing to the drain outlet 117 to the outside of the heat exchange shell 11. It can be used as washing water for items inside the washing appliance 100, or stored outside the washing appliance 100 for other uses, or directly discharged. This utility model does not make specific limitations in this regard.

[0095] In some embodiments, the inner wall of the first mounting groove 111 is provided with a water-blocking rib 118b, which forms a water-receiving groove 118. The outer shell of the second air outlet 122 of the fan 12 is provided with a flange 123, which abuts against the water-blocking rib 118b.

[0096] In this way, the condensate formed at the first air outlet 115b can be prevented from flowing into the fan 12.

[0097] Specifically, please combine Figure 8 A water-blocking rib 118b protrudes from the inner wall of the first mounting groove 111, forming a water-receiving trough 118 to collect condensate formed at the first air outlet 115b. In one embodiment, a flange 123 is provided on the outer casing of the second air outlet 122 of the fan 12. The flange 123 abuts against the water-blocking rib 118b, so that the water-receiving trough 118 is located below the second air outlet 122 of the fan 12. The condensate formed at the first air outlet 115b can flow directly into the water-receiving trough 118 and then flow through the water guide hole 118a to the drain outlet 117, and then be discharged to the outside of the washing appliance 100 through the drain outlet 117. Therefore, it is possible to prevent condensate from entering the fan 12 and causing the fan 12 to malfunction.

[0098] Optionally, the water-blocking rib 118b and the inner wall of the first mounting groove 111 are integrally formed.

[0099] exist Figure 8 In one embodiment, when the fan 12 is covered with an elastic element 13, the flange 123 on the outer shell of the fan 12 can abut against the water baffle 118b through the elastic element 13, so that the water receiving groove 118 is located at the second air outlet 122 of the fan 12.

[0100] In some embodiments, the heat exchange housing 11 is provided with a first air outlet 115b and a drain outlet 117. The opening of the water receiving tank 118 faces the first air outlet 115b. The tank wall of the water receiving tank 118 is provided with a water guiding hole 118a. The water guiding hole 118a is formed on the partition plate 116. The water guiding hole 118a connects the water receiving tank 118 with the second mounting groove 112. The water receiving tank 118 is connected to the drain outlet 117 through the water guiding hole 118a.

[0101] In this way, the condensate formed at the first air outlet 115b can be discharged to the outside of the heat exchange shell 11.

[0102] Specifically, condensation may form at the first air outlet 115b of the heat exchange housing 11 when there is a large temperature difference or high humidity with the surrounding environment. This condensation can easily flow along the inner wall of the first mounting groove 111 to the second air outlet 122 of the fan 12 and then enter the fan 12. If the condensation accumulates inside the fan 12 for a long time, it may cause the fan 12 to rust, corrode, or even affect the normal operation of the fan 12. Please refer to... Figure 8The water receiving tank 118 is located on one side of the first mounting groove 111, and the opening of the water receiving tank 118 faces the first air outlet 115b, so that the condensate formed at the first air outlet 115b can flow along the inner wall of the first mounting groove 111 into the water receiving tank 118, and will not enter the fan 12.

[0103] Optionally, the water receiving tank 118 is provided with a water guide hole 118a on the side facing the second mounting groove 112, and the water guide hole 118a is formed on the partition 116. Since the first mounting groove 111 is spaced apart from the second mounting groove 112 through the partition 116, the water receiving tank 118 can communicate with the second mounting groove 112 through the water guide hole 118a. Thus, the condensate collected in the water receiving tank 118 can flow to the second mounting groove 112 through the water guide hole 118a, so that the condensate will not accumulate in the first mounting groove 111, and to a certain extent avoids the risk of condensate entering the fan 12 and causing the fan 12 to malfunction.

[0104] The water receiving tank 118 is connected to the drain outlet 117 through the water guide hole 118a, so that the condensate collected in the water receiving tank 118 can flow through the water guide hole 118a to the drain outlet 117, and then be discharged to the outside of the heat exchange shell 11 through the drain outlet 117. Figure 4 and Figure 9 In this embodiment, the water receiving tank 118 is connected to the second water receiving area 112b on the bottom wall of the second mounting tank 112 through the water guide hole 118a. The second water receiving area 112b is connected to the third water receiving area 112c through the second opening 113b. The third water receiving area 112c is inclined toward the drain outlet 117. Therefore, the condensate collected in the water receiving tank 118 can flow through the water guide hole 118a to the second water receiving area 112b, and then through the second opening 113b to the third water receiving area 112c. Finally, it is discharged to the outside of the heat exchange shell 11 through the drain outlet 117.

[0105] In some embodiments, the washing appliance 100 includes a base 30, on which an overflow detection mechanism 50 is provided, and an overflow port 119 is provided on the heat exchange housing 11. The overflow port 119 is configured such that when condensate flows out from the overflow port 119, the condensate flowing out can be detected by the overflow detection mechanism 50.

[0106] In this way, the contact time between the equipment installed in the heat exchange housing 11 and the condensate is reduced to a certain extent, which can remind users or maintenance personnel to deal with the fault in a timely manner, so as to ensure the safe use of the washing appliance 100.

[0107] Specifically, when the drain outlet 117 is blocked or the water pump 16 connected to the drain outlet 117 is damaged, the condensate in the heat exchange shell 11 will continue to accumulate, thus coming into contact with the equipment installed in the heat exchange shell 11 (such as the fan 12, heat exchanger 15, etc.). Prolonged contact will lead to equipment damage and a significant reduction in heat exchange efficiency and dehumidification efficiency.

[0108] Please combine Figures 1 to 4 and Figure 9 An overflow outlet 119 is provided on the side of the third water receiving area 112c away from the first water receiving area 112a and the second water receiving area 112b. The position of the overflow outlet 119 is higher than the position of the drain outlet 117. Optionally, the height of the overflow outlet 119 can be specifically limited according to the maximum allowable liquid level of the condensate. This utility model does not make a specific limitation in this regard.

[0109] Optionally, an overflow trough 31 is formed on the base 30 of the washing appliance 100. The third water receiving area 112c is connected to the overflow trough 31 through the overflow port 119. A guide 17 connected to the overflow port 119 is provided on the outside of the heat exchange housing 11, which can guide the condensate to the overflow trough 31. The overflow trough 31 is located on the base 30 in an area away from the heat exchange housing 11 to prevent the overflowing condensate from coming into contact with the equipment installed inside the heat exchange housing 11 again. When the liquid level of the condensate accumulated inside the heat exchange housing 11 rises to the position of the overflow port 119, the condensate collected in the third water receiving area 112c can flow to the overflow trough 31 through the overflow port 119 and the guide 17. Therefore, excess condensate can be discharged outside the heat exchange housing 11 through the overflow port 119, reducing the contact time between the equipment installed inside the heat exchange housing 11 and the condensate to a certain extent.

[0110] Please combine Figure 1 and Figure 2 The base 30 of the washing appliance 100 may be equipped with an overflow detection mechanism 50, which is used to monitor the liquid level of the condensate collected in the overflow tank 31. When the overflow detection mechanism 50 detects that the liquid level of the condensate reaches the preset liquid level, the washing appliance 100 will control the alarm to remind the user or maintenance personnel to deal with the fault in time, so as to ensure the safe use of the washing appliance 100.

[0111] In some embodiments, the second mounting groove 112 is provided with a slot, and the heat exchanger 15 includes a side plate 153, which is engaged in the slot to fix the heat exchanger 15 in the second mounting groove 112.

[0112] In this way, the heat exchanger 15 can be securely installed in the second mounting groove 112 of the heat exchange housing 11.

[0113] Specifically, the heat exchanger 15 includes a side plate 153, and an evaporator 151 and a condenser 152 are fixedly connected to the side plate 153. The edge of the side plate 153 is adapted to the groove shape of the slot, so that the edge of the side plate 153 can be locked into the slot. Since the slot is located in and fixedly connected to the second mounting groove 112 of the heat exchange shell 11, the side plate 153 can be fixedly connected to the second mounting groove 112 through mutual cooperation with the slot, thereby making the heat exchanger 15 securely installed in the second mounting groove 112.

[0114] Optionally, the card slot and the second mounting slot 112 can be an integrally formed structure.

[0115] In some embodiments, the slot includes a first slot 1134 and a second slot 1135. The first slot 1134 is disposed on the side wall of the second mounting groove 112, and the second slot 1135 is disposed on the bottom wall of the second mounting groove 112. The two sides of the side plate 153 are engaged in the first slot 1134, and the lower edge of the side plate 153 can abut against the second slot 1135.

[0116] Thus, through the cooperation of the side plate 153 and the first slot 1134 and the second slot 1135, the heat exchanger 15 can be securely installed in the second mounting slot 112.

[0117] Specifically, please combine Figure 4 and Figure 9 Two adjacent first slots 1134 are arranged opposite each other, and a second slot 1135 is located on the bottom wall of the second mounting groove 112 and between the two adjacent first slots 1134. The edge of the side plate 153 is adapted to the groove shape of the first slot 1134 and the second slot 1135, so that the two sides of the side plate 153 can be respectively engaged in the first slots 1134 on both sides, and the lower edge of the side plate 153 can abut against the second slot 1135, thereby fixing the side plate 153 to the second mounting groove 112, and thus making the heat exchanger 15 securely installed in the second mounting groove 112.

[0118] It is understandable that there is a certain distance between the bottom of the second slot 1135 and the bottom wall of the second mounting slot 112, so that the bottom of the heat exchanger 15 does not contact the bottom wall of the second mounting slot 112 and the protruding ribs on the bottom wall, thus avoiding direct contact with the bottom wall and causing condensate to stagnate, and ensuring the heat exchange performance of the heat exchanger 15 to a certain extent.

[0119] Optionally, the number of first slots 1134 and second slots 1135 can be specifically limited according to actual conditions. One side plate 153 corresponds to two first slots 1134, and this utility model does not make a specific limitation in this regard. In one example, the heat exchanger 15 has two oppositely arranged side plates 153, the number of first slots 1134 is 4, and the number of second slots 1135 is 5. One side plate 153 is correspondingly locked in two first slots 1134 and two or three second slots 1135.

[0120] This utility model provides a washing appliance 100, which includes an inner tank and a heat pump drying system. The inner tank has a first through hole and a second through hole, which are spaced apart. The heat pump drying system includes the air duct structure 10 of any of the above embodiments. The heat exchange shell 11 has a first air inlet 115a and a first air outlet 115b. The first air inlet 115a communicates with the first through hole, and the first air outlet 115b communicates with the second through hole. The heat pump drying system includes a compressor and a throttling device. The heat exchanger 15 includes an evaporator 151 and a condenser 152. The compressor, condenser 152, throttling device, and evaporator 151 constitute a closed refrigerant circuit.

[0121] Thus, the fan 12 is installed in the first mounting slot 111 of the heat exchange housing 11, avoiding the problem of limited operating space caused by the fan 12 being installed alone inside the washing appliance 100, thereby simplifying the installation operation of the fan 12.

[0122] Specifically, please combine Figure 1 and Figure 2 The washing appliance 100 includes a base 30, and the heat pump drying system of the washing appliance 100 includes an air duct structure 10. The heat exchange housing 11 of the air duct structure 10 is mounted on the base 30. The heat exchange housing 11 is provided with a first mounting groove 111 and a second mounting groove 112, wherein the fan 12 is mounted in the first mounting groove 111 and the heat exchanger 15 is mounted in the second mounting groove 112. That is, the heat exchanger 15 and the fan 12 are integrated into the heat exchange housing 11, which can avoid the problem of limited operating space caused by the fan 12 being installed alone inside the washing appliance 100, thereby simplifying the installation operation of the fan 12.

[0123] The heat pump drying system is connected to the first through hole of the inner liner through the first air inlet 115a of the heat exchange shell 11, and the first air outlet 115b of the heat exchange shell 11 is connected to the second through hole of the inner liner, which can form an air flow path. The first through hole and the second through hole are set at intervals, so that the heat pump drying system and the inner liner work together to achieve air circulation.

[0124] The heat pump drying system includes a compressor and a throttling device. The heat exchanger 15 includes an evaporator 151 and a condenser 152. The compressor, condenser 152, throttling device, and evaporator 151 form a closed refrigerant circuit. During the operation of the heat pump drying system, air inside the inner tank enters the heat exchange shell 11 through the first through-hole and the first air inlet 115a. It first exchanges heat with the low-temperature, low-pressure liquid refrigerant in the evaporator 151, causing water vapor in the air to condense into liquid water and be discharged, thus achieving air dehumidification. The low-temperature, low-pressure gaseous refrigerant formed after evaporation enters the compressor and is compressed into a high-temperature, high-pressure gaseous refrigerant. Subsequently, the refrigerant enters the condenser 152 and condenses there to form a high-temperature, high-pressure liquid refrigerant. The air exchanges heat with the high-temperature, high-pressure liquid refrigerant in the condenser 152, thereby forming high-temperature, dry air. High-temperature, dry air enters and is driven by the fan 12, returning to the inner liner through the first air outlet 115b and the second through hole, thereby drying the items carried inside the inner liner. The liquid refrigerant is depressurized and cooled by the throttling device, becoming a low-temperature, low-pressure liquid or gas-liquid mixture, preparing for the next heat absorption in the evaporator 151, thus forming a cycle.

[0125] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0126] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An air duct structure of a heat pump drying system for a washing appliance, characterized in that, The air duct structure includes a heat exchange shell and a fan. A first mounting groove and a second mounting groove are formed inside the heat exchange shell. The first mounting groove and the second mounting groove are spaced apart. The fan is installed in the first mounting groove. The air duct structure includes a heat exchanger, which is installed in the second mounting groove.

2. The air duct structure according to claim 1, wherein The heat exchange housing includes an outer wall and a partition, the partition separating the first mounting slot and the second mounting slot, and the fan is fitted between the outer wall and the partition.

3. The air duct structure according to claim 2, wherein The outer wall is provided with a first air inlet and a first air outlet, the partition is provided with an air passage, and the fan includes a second air inlet and a second air outlet. The second air inlet is connected to the first air inlet through the air passage, and the second air outlet is connected to the first air outlet.

4. The air duct structure according to claim 3, wherein The area of ​​the air vent is larger than the area of ​​the second air inlet, and the air vent and the second air inlet are coaxially arranged.

5. The air duct structure according to claim 1, wherein The heat exchange housing includes an elastic element, which is sleeved on at least a portion of the surface of the fan, and at least a portion of the elastic element is disposed between the fan and the side wall of the first mounting groove.

6. The air duct structure according to claim 2, wherein The heat exchanger includes an evaporator and a condenser, which are installed alternately in the second mounting slot. The condenser is located between the evaporator and the second air inlet of the fan.

7. The air duct structure according to claim 6, characterized in that, The bottom wall of the second mounting groove is provided with a first rib and a second rib. The first rib, the second rib, the bottom wall and the side wall of the second mounting groove together form a first water receiving area. The second rib, the partition and the bottom wall and the side wall of the second mounting groove together form a second water receiving area. The second rib is provided with a first opening. The first opening connects the first water receiving area and the second water receiving area.

8. The air duct structure according to claim 7, characterized in that, The bottom wall of the second mounting groove is provided with a third protruding rib. The third protruding rib, together with the bottom wall and side wall of the second mounting groove, forms a third water receiving area. The third water receiving area is separated from the second water receiving area and the first water receiving area by the third protruding rib. The third protruding rib is provided with a second opening. The second water receiving area is connected to the third water receiving area through the second opening.

9. The air duct structure according to claim 8, wherein The heat exchange shell is provided with a drain outlet. The bottom of the third water receiving area is inclined to the drain outlet. The first water receiving area is located below the evaporator, and the second water receiving area is located below the condenser. The first water receiving area and the second water receiving area are connected to the drain outlet through the third water receiving area.

10. The air duct structure according to claim 6, wherein The inner wall of the first mounting groove is provided with a water-blocking rib, which forms a water-receiving groove. The outer shell of the second air outlet of the fan is provided with a flange, which abuts against the water-blocking rib.

11. The air duct structure according to claim 10, wherein The heat exchange shell is provided with a first air outlet and a drain outlet. The opening of the water receiving tank faces the first air outlet. The tank wall of the water receiving tank is provided with a water guiding hole. The water guiding hole is formed on the partition plate. The water guiding hole connects the water receiving tank with the second mounting groove. The water receiving tank is connected to the drain outlet through the water guiding hole.

12. The air duct structure according to any one of claims 1 to 11, characterized by The washing appliance includes a base, on which an overflow detection mechanism is provided, and an overflow port is provided on the heat exchange housing. The overflow port is configured such that when condensate flows out from the overflow port, the condensate flowing out can be detected by the overflow detection mechanism.

13. The air duct structure according to claim 1, characterized in that, The second mounting groove is provided with a slot, and the heat exchanger includes a side plate, which is engaged in the slot to fix the heat exchanger in the second mounting groove.

14. The air duct structure according to claim 13, characterized in that, The slot includes a first slot and a second slot. The first slot is located on the side wall of the second mounting slot, and the second slot is located on the bottom wall of the second mounting slot. The two sides of the side plate are engaged in the first slot, and the lower edge of the side plate can abut against the second slot.

15. A washing appliance characterised in that, include: The inner liner, wherein the inner liner is provided with a first through hole and a second through hole, the first through hole and the second through hole being spaced apart; and A heat pump drying system, the heat pump drying system comprising the air duct structure as described in any one of claims 1-14, wherein the heat exchange shell is provided with a first air inlet and a first air outlet, the first air inlet communicating with a first through hole, and the first air outlet communicating with a second through hole; The heat pump drying system includes a compressor and a throttling device, and the heat exchanger includes an evaporator and a condenser. The compressor, the condenser, the throttling device, and the evaporator constitute a closed refrigerant circuit.

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