Flexible heat-conducting member, heat-conducting assembly and heat pump water heater

Abstract

The utility model relates to hot water supply equipment technical field discloses a kind of flexible heat conducting parts, heat conducting assembly and heat pump water heater, flexible heat conducting part is used to install between the water tank outer wall and microchannel heat exchanger of heat pump water heater, and flexible heat conducting part is hollowly arranged and forms filling cavity, and filling cavity is filled with heat conducting medium. The filling cavity of flexible heat conducting part can fill heat conducting medium, and thus the thickness of flexible heat conducting part can be adjusted, so that the contact surface of flexible heat conducting part and microchannel heat exchanger and water tank outer wall are closely combined, guarantee the heat transfer effect between microchannel heat exchanger and water tank outer wall, and improve reliability.

Description

Technical Field

[0001] This utility model relates to the field of hot water supply equipment technology, and in particular to a flexible heat-conducting component, a heat-conducting assembly, and a heat pump water heater. Background Technology

[0002] With the widespread application of heat pump water heaters, users have increasingly higher requirements for their energy efficiency. Currently, integrated heat pump water heaters use microchannel heat exchangers to heat the water in the tank. The microchannel heat exchanger is wrapped around the outer wall of the tank, and heat is transferred to the water stored inside the tank through the microchannel heat exchanger and the outer wall of the tank. The better the heat transfer effect between the microchannel heat exchanger and the tank, the less heat loss of the microchannel heat exchanger, and the less energy loss of the heat pump water heater. The heat transfer effect between the microchannel heat exchanger and the tank is related to the fit between them. The tighter the fit between the microchannel heat exchanger and the tank, the better the heat transfer effect. However, due to factors such as the flatness of the outer wall of the microchannel heat exchanger and the tank during the manufacturing process, and the need for bending and local deformation of the microchannel heat exchanger around the outer wall of the tank during installation, the microchannel heat exchanger and the outer wall of the tank cannot be tightly fitted during actual installation, which seriously affects the heat transfer effect between the microchannel heat exchanger and the tank.

[0003] To improve the fit between the microchannel heat exchanger and the outer wall of the water tank, related technologies employ the application of thermally conductive silicone grease between them. However, due to the relatively complex process of applying the thermally conductive silicone grease and the inability to guarantee uniformity during application, it is still impossible to effectively improve the fit between the microchannel heat exchanger and the outer wall of the water tank, thus failing to ensure the heat transfer effect between the microchannel heat exchanger and the water tank and failing to meet the requirement of reducing the energy consumption of heat pump water heaters. Utility Model Content

[0004] The first technical problem solved by this utility model is to provide a flexible heat-conducting component, which solves the problem that the heat exchanger and water tank of a heat pump water heater cannot be tightly fitted, resulting in poor heat transfer effect and high energy consumption of the water heater.

[0005] The second technical problem solved by this utility model is to provide a heat-conducting component that solves the problem that the heat exchanger and water tank of a heat pump water heater cannot be tightly fitted, resulting in poor heat transfer effect and high energy consumption of the water heater.

[0006] The third technical problem solved by this utility model is to provide a heat pump water heater that effectively solves the problem that the heat exchanger and water tank of a heat pump water heater cannot fit tightly together, resulting in poor heat transfer effect and high energy consumption of the water heater.

[0007] The first technical problem mentioned above is solved by the following technical solution: A flexible heat-conducting component is used to be installed between the outer wall of the water tank of a heat pump water heater and a microchannel heat exchanger. The flexible heat-conducting component is hollow and forms a filling cavity, which is filled with a heat-conducting medium.

[0008] Compared with the prior art, the flexible heat-conducting component of this utility model has the following advantages: By placing the flexible heat-conducting component between the outer wall of the water tank and the microchannel heat exchanger, and because the filling cavity of the flexible heat-conducting component is filled with a heat-conducting medium, the heat from the microchannel heat exchanger can be transferred to the outer wall of the water tank through the flexible heat-conducting component, and then to the water stored in the water tank. Furthermore, because the flexible heat-conducting component is made of a flexible material, it has good deformability, allowing its thickness to change under external pressure, thus ensuring a tight fit between the contact surfaces of the flexible heat-conducting component, the microchannel heat exchanger, and the outer wall of the water tank. For uneven areas on the outer wall of the water tank and local bends in the microchannel heat exchanger, the two opposing surfaces of the flexible heat-conducting component can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible heat-conducting component and reducing the power consumption of the heat pump water heater. Compared with the poor consistency of thermal grease application in related technologies, the flexible heat-conducting component of this utility model can guarantee the heat transfer effect between the microchannel heat exchanger and the outer wall of the water tank, improving reliability.

[0009] In one embodiment, the flexible thermal conductive element is provided with a filling port, which is connected to the filling cavity.

[0010] In one embodiment, the flexible thermal conductive element includes a first thermal conductive film and a second thermal conductive film, the edges of the first thermal conductive film and the second thermal conductive film are provided with sealing edges, and a support structure is provided between the first thermal conductive film and the second thermal conductive film.

[0011] In one embodiment, the support structure includes a plurality of support plates arranged in parallel and spaced apart. Along the thickness direction of the support plates, a plurality of through holes are provided on the support plates, and the plurality of through holes are distributed in a grid pattern.

[0012] In one embodiment, the thickness of the first thermally conductive film and the second thermally conductive film ranges from 0.1 mm to 0.5 mm; and / or; The gap between the first thermal conductive film and the second thermal conductive film ranges from 1 mm to 5 mm.

[0013] The second technical problem mentioned above is solved by the following technical solution: A heat-conducting component includes the aforementioned flexible heat-conducting element and a filling structure. The filling structure includes a medium storage tank, a filling pipe, and a medium pump. The filling port is connected to the medium storage tank through the filling pipe, and the medium pump is disposed on the filling pipe.

[0014] Compared with the prior art, the heat-conducting component of this utility model has the following advantages: The flexible heat-conducting element is disposed between the outer wall of the water tank and the microchannel heat exchanger. Since the filling cavity of the flexible heat-conducting element is filled with a heat-conducting medium, the heat from the microchannel heat exchanger can be transferred to the outer wall of the water tank through the flexible heat-conducting element, and then to the water stored in the water tank. The filling pipe of the filling structure connects the filling port and the medium storage tank. The medium pump can pump the heat-conducting medium from the medium storage tank into the filling cavity through the filling pipe, thereby adjusting the thickness of the flexible heat-conducting element to ensure a tight fit between the contact surfaces of the flexible heat-conducting element, the microchannel heat exchanger, and the outer wall of the water tank. For uneven areas on the outer wall of the water tank and local bends in the microchannel heat exchanger, the two opposing surfaces of the flexible heat-conducting element can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible heat-conducting element and reducing the power consumption of the heat pump water heater. Compared to the poor consistency of thermal grease application in related technologies, the flexible thermal conductive component of this invention can ensure the heat transfer effect between the microchannel heat exchanger and the outer wall of the water tank, thus improving reliability.

[0015] In one embodiment, the flexible heat-conducting component is provided with a plurality of filling ports at intervals, and the filling structure further includes a filling channel. The filling channel is disposed between the end of the filling pipe away from the medium storage tank and the plurality of filling ports. The filling channel includes a connected inlet end and a plurality of branch channels. The inlet end is connected to the end of the filling pipe away from the medium storage tank, and the plurality of branch channels are connected to the plurality of filling ports one by one.

[0016] The third technical problem mentioned above is solved by the following technical solution: A heat pump water heater includes the aforementioned flexible heat-conducting element, and further includes a water tank and a microchannel heat exchanger, wherein the flexible heat-conducting element is installed between the outer wall of the water tank and the microchannel heat exchanger.

[0017] Compared with the prior art, the heat pump water heater of this utility model has the following advantages: A flexible heat-conducting component is disposed between the outer wall of the water tank and the microchannel heat exchanger. Since the filling cavity of the flexible heat-conducting component is filled with a heat-conducting medium, the heat from the microchannel heat exchanger can be transferred to the outer wall of the water tank through the flexible heat-conducting component, and then to the water stored in the water tank. Furthermore, because the flexible heat-conducting component is made of a flexible material, it has good deformability, allowing its thickness to change under external pressure, thus ensuring a tight fit between the contact surfaces of the flexible heat-conducting component, the microchannel heat exchanger, and the outer wall of the water tank. For uneven areas on the outer wall of the water tank and local bends in the microchannel heat exchanger, the two opposing surfaces of the flexible heat-conducting component can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible heat-conducting component and reducing the power consumption of the heat pump water heater. Compared with the poor consistency of thermal grease application in related technologies, the flexible heat-conducting component of this utility model can guarantee the heat transfer effect between the microchannel heat exchanger and the outer wall of the water tank, improving reliability.

[0018] In one embodiment, the heat pump water heater further includes a thermally conductive silicone pad disposed between the flexible thermal conductive element and the microchannel heat exchanger.

[0019] In one embodiment, the microchannel heat exchanger includes a first manifold, a second manifold, and a microchannel heat exchange tube group. One side of the first manifold and the second manifold are connected through the microchannel heat exchange tube group, and the flexible heat-conducting element is disposed between the microchannel heat exchange tube group and the outer wall of the water tank. The heat pump water heater includes a fastening structure. The first manifold is provided with a first hanging ear, and the second manifold is provided with a second hanging ear. The two ends of the fastening structure are respectively fixedly connected to the first hanging ear and the second hanging ear. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a flexible heat-conducting component according to an embodiment of the present utility model; Figure 2 This is a front view of a flexible heat-conducting component according to an embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the flexible heat-conducting component in the image; Figure 4for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 2 Another cross-sectional structural diagram of the flexible heat-conducting component in the image; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 This is a schematic diagram of the water tank and microchannel heat exchanger of the heat pump water heater according to an embodiment of the present invention; Figure 8 for Figure 7 Enlarged view of point C in the middle; Figure 9 for Figure 7 Enlarged view of point D in the middle; Figure 10 This is a schematic diagram of the structure of the thermally conductive silicone sheet according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Flexible thermal conductive component; 11. First thermal conductive film; 12. Second thermal conductive film; 13. Sealing edge; 14. Filling cavity; 15. Support plate; 151. Through hole; 21. Medium storage tank; 22. Filling pipe; 23. Medium pump; 24. Filling channel; 241. Branch channel; 3. Water tank; 4. Microchannel heat exchanger; 41. First manifold; 42. Second manifold; 43. Microchannel heat exchanger tube assembly; 441. First mounting lug; 442. Second mounting lug; 45. Support frame; 5. Thermally conductive silicone pad; 6. Fastening structure. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] See Figure 1 , Figure 2 , Figure 3 and Figure 7 This embodiment provides a flexible heat-conducting component for installation between the outer wall of the water tank 3 of a heat pump water heater and the microchannel heat exchanger 4. The flexible heat-conducting component 1 is hollow and forms a filling cavity 14, which is filled with a heat-conducting medium.

[0028] A flexible heat-conducting component 1 is disposed between the outer wall of the water tank 3 and the microchannel heat exchanger 4. The flexible heat-conducting component 1 has two opposing surfaces: one surface serves as the contact surface with the outer wall of the water tank 3, and the other surface serves as the contact surface with the microchannel heat exchanger 4. Between the two surfaces is a hollow filling cavity 14. Since the filling cavity 14 is filled with a heat-conducting medium, the heat from the microchannel heat exchanger 4 can be transferred through the flexible heat-conducting component 1 to the outer wall of the water tank 3, and then to the water stored in the water tank 3. Furthermore, because the flexible heat-conducting component 1 is made of a flexible material, it has good deformability, allowing its thickness to change under external pressure, ensuring a tight fit between the flexible heat-conducting component 1, the microchannel heat exchanger 4, and the outer wall of the water tank 3. For uneven areas on the outer wall of the water tank 3 and local bends in the microchannel heat exchanger, the two opposing surfaces of the flexible heat-conducting component 1 can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible heat-conducting component 1 and reducing the power consumption of the heat pump water heater. Compared to the poor consistency of thermal grease application in related technologies, the flexible thermal conductive component 1 of this invention can ensure the heat transfer effect between the microchannel heat exchanger 4 and the outer wall of the water tank 3, thus improving reliability.

[0029] In one embodiment, the flexible heat-conducting element 1 is provided with a filling port, which is connected to the filling cavity 14. By filling the filling cavity 14 with a heat-conducting medium through the filling port, the thickness of the flexible heat-conducting element 1 can be directly changed, thereby enabling the flexible heat-conducting element 1 to fit tightly against the contact surface between the microchannel heat exchanger 4 and the outer wall of the water tank 3.

[0030] See Figure 3 and Figure 4 In one embodiment, the flexible heat-conducting element 1 includes a first heat-conducting film 11 and a second heat-conducting film 12. The edges of the first heat-conducting film 11 and the second heat-conducting film 12 are provided with sealing edges 13, and a support structure is provided between the first heat-conducting film 11 and the second heat-conducting film 12.

[0031] The filling cavity 14 is formed by the edges of the first thermally conductive film 11 and the second thermally conductive film 12 being surrounded by the sealing edge 13, which increases the fillable area of ​​the thermally conductive medium. This allows the surfaces of the first thermally conductive film 11 and the second thermally conductive film 12 to deform under the pressure of the thermally conductive medium. For uneven areas on the outer wall of the water tank 3 and local bends in the microchannel heat exchanger, the first thermally conductive film 11 and the second thermally conductive film 12 can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible thermally conductive component 1 and achieving the goal of reducing the power consumption of the water heater. For example, after assembling the flexible heat-conducting component 1, the first heat-conducting film 11 can be used to contact the microchannel heat exchanger 4, and the second heat-conducting film 12 can be used to contact the outer wall of the water tank 3. When the pressure in the filling cavity 14 is low, the support structure can support the first heat-conducting film 11 and the second heat-conducting film 12 to prevent the first heat-conducting film 11 and the second heat-conducting film 12 from sticking together. At the same time, it can also ensure that the first heat-conducting film 11 is in contact with the microchannel heat exchanger 4 and the second heat-conducting film 12 is in contact with the outer wall of the water tank 3.

[0032] See Figure 4 , Figure 5 and Figure 6 The support structure includes multiple support plates 15 arranged in parallel and at intervals. Along the thickness direction of each support plate 15, multiple through holes 151 are provided, arranged in a grid pattern. The support plates 15 support the first thermally conductive film 11 and the second thermally conductive film 12. The through holes 151 allow the thermally conductive medium to pass through, thus providing both stable support and allowing the thermally conductive medium to flow within the filling cavity 14. Alternatively, the support structure can also consist of multiple spaced protrusions. These protrusions can be located on the first or second thermally conductive film 11 and can also prevent the first and second thermally conductive films 11 from adhering together. The gaps between the protrusions allow the thermally conductive medium to flow.

[0033] In one embodiment, the first thermally conductive film 11 and the second thermally conductive film 12 are thin films. The first thermally conductive film 11, the second thermally conductive film 12 and the sealing edge 13 can be made of silicone or polyurethane composite material, so that the first thermally conductive film 11 and the second thermally conductive film 12 are elastic and can adapt to the shape of the contact surface between the outer wall of the water tank 3 and the microchannel heat exchanger 4, thereby improving the fit between the first thermally conductive film 11 and the second thermally conductive film 12 and the outer wall of the water tank 3 and the microchannel heat exchanger 4.

[0034] In one embodiment, the heat transfer medium may be an ethylene glycol solution or a heat transfer oil.

[0035] In one embodiment, the thickness of the first thermally conductive film 11 and the second thermally conductive film 12 ranges from 0.1 mm to 0.5 mm.

[0036] In one embodiment, the gap between the first thermally conductive film 11 and the second thermally conductive film 12 ranges from 1 mm to 5 mm. The gap between the first thermally conductive film 11 and the second thermally conductive film 12 is the filling cavity 14, and the size of the filling cavity 14 in the thickness direction of the first thermally conductive film 11 and the second thermally conductive film 12 ranges from 1 mm to 5 mm.

[0037] See Figure 1 and Figure 2 This embodiment provides a heat-conducting component, including the aforementioned flexible heat-conducting component 1, and also includes a filling structure. The filling structure includes a medium storage tank 21, a filling pipe 22, and a medium pump 23. The filling port is connected to the medium storage tank 21 through the filling pipe 22, and the medium pump 23 is disposed on the filling pipe 22.

[0038] A flexible heat-conducting element 1 is disposed between the outer wall of the water tank 3 and the microchannel heat exchanger 4. The heat from the microchannel heat exchanger 4 can be transferred to the outer wall of the water tank 3 through the flexible heat-conducting element 1, and then to the water stored in the water tank 3. The filling pipe 22 of the filling structure connects the filling port and the medium storage tank 21. The medium pump 23 can pump the heat-conducting medium from the medium storage tank 21 into the filling cavity 14 through the filling pipe 22. This allows direct adjustment of the thickness of the flexible heat-conducting element 1, ensuring a tight fit between the contact surfaces of the flexible heat-conducting element 1 and the microchannel heat exchanger 4 and the outer wall of the water tank 3. For uneven areas on the outer wall of the water tank 3 and local bends in the microchannel heat exchanger, the two opposing surfaces of the flexible heat-conducting element 1 can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible heat-conducting element 1 and reducing the power consumption of the heat pump water heater. Compared to the poor consistency of thermal grease application in related technologies, the flexible thermal conductive component 1 of this invention can ensure the heat transfer effect between the microchannel heat exchanger 4 and the outer wall of the water tank 3, thus improving reliability.

[0039] See Figure 1 and Figure 2In one embodiment, the flexible heat-conducting element 1 is provided with multiple filling ports at intervals, that is, the sealing edge 13 is provided with multiple filling ports at intervals. The filling structure also includes a filling channel 24, which is located between the end of the filling pipe 22 away from the medium storage tank 21 and the multiple filling ports. The filling channel 24 includes a connected inlet end and multiple branch channels 241. The inlet end is connected to the end of the filling pipe 22 away from the medium storage tank 21, and the multiple branch channels 241 are connected to the multiple filling ports one by one. When the medium pump 23 is working, the heat-conducting medium in the medium storage tank 21 enters the inlet end through the filling pipe 22, and then the heat-conducting medium enters the filling cavity 14 from the multiple branch channels 241 through the multiple filling ports. The multiple filling ports can improve the uniformity of the medium entering the filling cavity 14.

[0040] See Figure 7 and Figure 8 This embodiment provides a heat pump water heater, including the aforementioned flexible heat-conducting component 1 and filling structure, as well as a water tank 3 and a microchannel heat exchanger 4. The flexible heat-conducting component 1 is installed between the outer wall of the water tank 3 and the microchannel heat exchanger 4, and the filling structure is located on the outside of the water tank 3.

[0041] A flexible heat-conducting element 1 is disposed between the outer wall of the water tank 3 and the microchannel heat exchanger 4. The heat from the microchannel heat exchanger 4 can be transferred to the outer wall of the water tank 3 through the flexible heat-conducting element 1, and then to the water stored in the water tank 3. The filling pipe 22 of the filling structure connects the filling port and the medium storage tank 21. The medium pump 23 can pump the heat-conducting medium from the medium storage tank 21 into the filling cavity 14 through the filling pipe 22. This allows adjustment of the thickness of the flexible heat-conducting element 1, ensuring a tight fit between the contact surfaces of the flexible heat-conducting element 1 and the microchannel heat exchanger 4 and the outer wall of the water tank 3. For uneven areas on the outer wall of the water tank 3 and local bends in the microchannel heat exchanger, the two opposing surfaces of the flexible heat-conducting element 1 can achieve a tight fit through further adaptive deformation, thereby improving the heat transfer effect of the flexible heat-conducting element 1 and reducing the power consumption of the heat pump water heater. Compared to the poor consistency of thermal grease application in related technologies, the flexible thermal conductive component 1 of this invention can ensure the heat transfer effect between the microchannel heat exchanger 4 and the outer wall of the water tank 3, thus improving reliability.

[0042] See Figure 7 , Figure 8 and Figure 10In one embodiment, the heat pump water heater further includes a thermally conductive silicone sheet 5, which is disposed between the flexible thermally conductive element 1 and the microchannel heat exchanger 4. The thermally conductive silicone sheet 5 has good flexibility and compressibility, and also has good thermal conductivity. The thermally conductive silicone sheet 5 can conform to the microchannel heat exchanger 4 through deformation, thereby filling the uneven surface of the microchannel heat exchanger 4. At the same time, when the filling cavity 14 of the flexible thermally conductive element 1 is filled with liquid, the thermally conductive silicone sheet 5 can also reduce the compressive stress directly on the microchannel heat exchange tube assembly 43.

[0043] In one embodiment, the size of the thermally conductive silicone pad 5 matches the size of the flexible thermally conductive element 1. Of course, multiple independent thermally conductive silicone pads 5 can also be provided as needed, with a gap between adjacent thermally conductive silicone pads 5 to avoid interference with other components of the microchannel heat exchanger 4.

[0044] In one embodiment, the compression ratio of the thermally conductive silicone sheet 5 ranges from 5% to 60%.

[0045] like Figure 7 As shown, in one embodiment, the microchannel heat exchanger 4 includes a first manifold 41, a second manifold 42, and a microchannel heat exchange tube assembly 43. One side of the first manifold 41 and the second manifold 42 are connected through the microchannel heat exchange tube assembly 43. A flexible heat-conducting element 1 is disposed between the microchannel heat exchange tube assembly 43 and the outer wall of the water tank 3. The microchannel heat exchange tube assembly 43 includes multiple flat tubes arranged at intervals. The two ends of the multiple flat tubes are respectively connected to the first manifold 41 and the second manifold 42. The heat from the multiple flat tubes is transferred to the outer wall of the water tank 3 through the thermally conductive silicone sheet 5 and the flexible heat-conducting element 1.

[0046] See Figure 7 In one embodiment, the filling structure is located on the opposite side of the first manifold 41 and the second manifold 42, thereby improving space utilization. Alternatively, the filling structure can also be located at other locations on the outer wall of the water tank 3, or at other locations on the casing of the heat pump water heater.

[0047] In one embodiment, the heat pump water heater includes a fastening structure 6. A first lug 441 is provided on the first manifold 41, and a second lug 442 is provided on the second manifold 42. The two ends of the fastening structure 6 are fixedly connected to the first lug 441 and the second lug 442, respectively. The fastening structure 6 is used to fix the first manifold 41 and the second manifold 42 to the outer wall of the water tank 3.

[0048] A bracket 45 is provided between the first lug 441 and the water tank 3. The bracket 45 is used to create a gap between the first manifold 41 and the water tank 3. The filling pipe 22 passes through the gap between the first manifold 41 and the water tank 3 and is connected to the filling port, thereby reducing the pressure generated by the first manifold 41 on the filling pipe 22 and preventing the filling pipe 22 from being blocked.

[0049] See Figure 7 and Figure 9 In one embodiment, the filling channel 24 passes through the gap between the first manifold 41 and the outer wall of the water tank 3. The filling channel 24 also includes a notch formed between the plurality of branch channels 241. The support 45 includes a first leg and a second leg, which are supported on the outer wall of the water tank 3 through the notch. The notch can be used to avoid interference during installation without affecting the delivery of heat transfer medium from the branch channels 241 to the filling port.

[0050] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0051] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flexible heat-conducting component, used for installation between the outer wall of the water tank and a microchannel heat exchanger in a heat pump water heater, characterized in that, The flexible heat-conducting component (1) is hollow and forms a filling cavity (14), which is filled with a heat-conducting medium.

2. The flexible thermal conductive element according to claim 1, characterized in that, The flexible heat-conducting component (1) is provided with a filling port, which is connected to the filling cavity (14).

3. The flexible thermal conductive element according to claim 1, characterized in that, The flexible heat-conducting component (1) includes a first heat-conducting film (11) and a second heat-conducting film (12). The edges of the first heat-conducting film (11) and the second heat-conducting film (12) are provided with sealing edges (13), and a support structure is provided between the first heat-conducting film (11) and the second heat-conducting film (12).

4. The flexible thermal conductive element according to claim 3, characterized in that, The support structure includes multiple support plates (15), which are arranged in parallel and spaced apart. Along the thickness direction of the support plates (15), multiple through holes (151) are provided on the support plates (15), and the multiple through holes (151) are distributed in a grid pattern.

5. The flexible thermal conductive element according to claim 3, characterized in that, The thickness of the first thermally conductive film (11) and the second thermally conductive film (12) ranges from 0.1 mm to 0.5 mm; and / or; The gap between the first thermal conductive film (11) and the second thermal conductive film (12) ranges from 1 mm to 5 mm.

6. A thermally conductive component, characterized in that, The flexible heat-conducting component (1) according to any one of claims 2 to 5 is further comprising a filling structure, the filling structure comprising a medium storage tank (21), a filling pipe (22) and a medium pump (23), the filling port being connected to the medium storage tank (21) through the filling pipe (22), and the medium pump (23) being disposed on the filling pipe (22).

7. The thermally conductive component according to claim 6, characterized in that, The flexible heat-conducting component (1) is provided with a plurality of filling ports at intervals. The filling structure also includes a filling channel (24). The filling channel (24) is located between the end of the filling pipe (22) away from the medium storage tank (21) and the plurality of filling ports. The filling channel (24) includes a connected inlet end and a plurality of branch channels (241). The inlet end is connected to the end of the filling pipe (22) away from the medium storage tank (21). The plurality of branch channels (241) are connected to the plurality of filling ports one by one.

8. A heat pump water heater, characterized in that, The device includes a flexible heat-conducting element (1) as described in any one of claims 1 to 5, and also includes a water tank (3) and a microchannel heat exchanger (4), wherein the flexible heat-conducting element (1) is installed between the outer wall of the water tank (3) and the microchannel heat exchanger (4) of the heat pump water heater.

9. The heat pump water heater according to claim 8, characterized in that, It also includes a thermally conductive silicone pad (5), which is disposed between the flexible thermally conductive element (1) and the microchannel heat exchanger (4).

10. The heat pump water heater according to claim 8, characterized in that, The microchannel heat exchanger (4) includes a first manifold (41), a second manifold (42), and a microchannel heat exchange tube group (43), with one side of the first manifold (41) and the second manifold (42) connected by the microchannel heat exchange tube group (43); The heat pump water heater includes a fastening structure (6), a first hanging ear (441) is provided on the first manifold (41), and a second hanging ear (442) is provided on the second manifold (42). The two ends of the fastening structure (6) are fixedly connected to the first hanging ear (441) and the second hanging ear (442) respectively.

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