Heat pump device

Abstract

The invention provides a heat pump device which comprises a heat pump system, the heat pump system comprises a first heat exchanger, a second heat exchanger and a first circulation pipeline which are connected with one another, a first refrigerant is arranged in the first circulation pipeline, the second heat exchanger is provided with a first heat exchange part and a second heat exchange part which are independent from one another, and the first heat exchange part exchanges heat with the first refrigerant; the second heat exchanger further comprises a fin structure, the fin structure is arranged between the first heat exchange part and the second heat exchange part, and the second heat exchange part exchanges heat with the fin structure; and the solar system comprises a photovoltaic back plate and a second circulation pipeline, a second refrigerant is arranged in the second circulation pipeline, the second circulation pipeline abuts against the photovoltaic back plate, the second circulation pipeline communicates with the second heat exchange part, and the second heat exchange part exchanges heat with the second refrigerant. According to the technical scheme, the problem that in the prior art, the heat exchanger is defrosted in a directional circulation mode, and the heating efficiency of the heat pump device is affected can be solved.

Description

Technical Field

[0001] This invention relates to the field of air source heat pump technology, and more specifically, to a heat pump device. Background Technology

[0002] With the continuous development of renewable energy utilization, this highly efficient and energy-saving equipment is widely used in building heating, cooling, and hot water supply. A single unit can simultaneously meet the needs of building heating, summer cooling, and year-round hot water, thus leading to its rapid adoption in urban residences, schools, hospitals, and agricultural product drying facilities. However, in winter, the outdoor side of the unit needs to continuously absorb heat from the low-temperature, humid air. The surface temperature of the evaporator fins often drops below freezing, and the water vapor it contains easily condenses into frost, affecting its performance and energy efficiency.

[0003] Currently, the common method for defrosting heat exchangers that are prone to frosting is reverse circulation. Specifically, a four-way valve is used to switch the system in reverse for a short period of time, directing the heat from the compressor exhaust to the outdoor side. Although this eliminates the need for electric heating elements, it requires heat absorption from the indoor environment, causing room temperature fluctuations and reducing system efficiency during defrosting. Summary of the Invention

[0004] This invention provides a heat pump device to solve the problem that defrosting the heat exchanger using a directional circulation method in the prior art affects the heating efficiency of the heat pump device.

[0005] This invention provides a heat pump device, comprising: a heat pump system including a first heat exchanger, a second heat exchanger, and a first circulation pipeline connected to each other, wherein the first circulation pipeline contains a first refrigerant, the first heat exchanger is located indoors, and the second heat exchanger is located outdoors; the second heat exchanger has a first heat exchange section and a second heat exchange section that are independent of each other, the first heat exchange section is connected to the first circulation pipeline and exchanges heat with the first refrigerant, the second heat exchanger further includes a fin structure disposed between the first heat exchange section and the second heat exchange section, and the second heat exchange section exchanges heat with the fin structure; and a solar energy system including a photovoltaic backsheet and a second circulation pipeline, wherein the second circulation pipeline contains a second refrigerant, the second circulation pipeline abuts against the photovoltaic backsheet, the second circulation pipeline is connected to the second heat exchange section, and the second heat exchange section exchanges heat with the second refrigerant.

[0006] Furthermore, the second heat exchanger includes a heat transfer element disposed between the first heat exchange section and the second heat exchange section. The heat transfer element has a heat absorption end and a heat release end disposed opposite to each other. The heat absorption end abuts against the second heat exchange section, and the heat release end abuts against the first heat exchange section. A fin structure is disposed on the heat transfer element, and the second heat exchange section exchanges heat with the fin structure through the heat absorption end.

[0007] Furthermore, the heat transfer element includes a first micro heat pipe array, which has a first evaporation section and a first condensation section that are interconnected. The first evaporation section contains a first working fluid, which flows between the first evaporation section and the first condensation section. The first evaporation section abuts against a second heat exchange section, and the end of the first evaporation section near the second heat exchange section forms a heat absorption end. The first condensation section abuts against the first heat exchange section, and the end of the first condensation section near the first heat exchange section forms a heat release end. A fin structure is disposed on the outer wall of the first micro heat pipe array.

[0008] Furthermore, the fin structure includes multiple fins, which are fixed on the outer wall of the first micro heat pipe array and distributed at intervals on both sides of the first micro heat pipe array along the extension direction of the first micro heat pipe array.

[0009] Furthermore, the extension directions of the first heat exchange section and the second heat exchange section are parallel to each other, and the heat transfer element includes a plurality of first micro heat pipe arrays. The plurality of first micro heat pipe arrays are distributed at intervals along the extension direction of the first heat exchange section. The fin structure has a plurality of fin structures, and the plurality of fin structures are arranged in a one-to-one correspondence with the plurality of first micro heat pipe arrays.

[0010] Furthermore, the first heat exchange section includes a first flow pipe, both ends of which are connected to the first circulation pipe, and the first flow pipe abuts against the heat dissipation end; the second heat exchange section includes a second flow pipe, both ends of which are connected to the second circulation pipe, and the second flow pipe abuts against the heat absorption end.

[0011] Furthermore, the first flow pipe has multiple first flow channels, the extension direction of the first flow channels is at an angle to the extension direction of the heat transfer element, the multiple first flow channels are distributed along the extension direction of the heat transfer element, and both ends of the first flow channels are connected to the first circulation pipe; the second flow pipe has multiple second flow channels, the extension direction of the second flow channels is at an angle to the extension direction of the heat transfer element, the multiple second flow channels are distributed along the extension direction of the heat transfer element, and both ends of the second flow channels are connected to the second circulation pipe.

[0012] Furthermore, the first heat exchange section, the second heat exchange section, the heat transfer element, and multiple fin structures cooperate to form a heat exchange unit. The heat pump system includes multiple spaced heat exchange units, and the distribution direction of the multiple heat exchange units is perpendicular to the extension direction of the first heat exchange section and the extension direction of the heat transfer element, respectively.

[0013] Furthermore, the solar energy system also includes a second micro heat pipe array and a third flow pipe. The two ends of the third flow pipe are connected to the second circulation pipe. The second micro heat pipe array has a second evaporation section and a second condensation section that are interconnected. The second evaporation section contains a second working fluid, which flows between the second evaporation section and the second condensation section. The second evaporation section abuts against the photovoltaic backsheet, and the second condensation section abuts against the third flow pipe.

[0014] Furthermore, a first water pump is installed on the second circulation pipeline, and an expansion valve is installed on the first circulation pipeline.

[0015] Applying the technical solution of this invention, when the heat pump system operates in heating mode, the high-temperature first refrigerant flows through the first heat exchanger, exchanging heat with the user's low-temperature water to heat it into high-temperature water for heating. At this time, the first heat exchanger acts as a condenser. Subsequently, the low-temperature first refrigerant flows through the first circulation pipe through the first heat exchange section of the second heat exchanger, exchanging heat with the outside air through the finned structure, thus heating the low-temperature first refrigerant. The second refrigerant continues to exchange heat with the photovoltaic backsheet through the second circulation pipe, utilizing the heat from the photovoltaic backsheet to raise its temperature. The heated second refrigerant then enters the second heat exchange section through the second circulation pipe, transferring heat to the finned structure to heat it and reduce frost formation. This eliminates the need for reverse circulation of the heat pump system to heat the finned structure. By combining with the solar energy system, the waste heat from the photovoltaic backsheet is used to heat the finned structure, avoiding frost accumulation on the finned structure, improving the heat transfer efficiency of the second heat exchanger, and increasing the system's energy utilization rate. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of the heat pump device provided by the present invention is shown;

[0018] Figure 2 A schematic diagram of the structure of the second evaporator provided by the present invention is shown;

[0019] Figure 3 A schematic diagram of the structure of the second evaporator provided by the present invention is shown from a frontal view.

[0020] Figure 4 A side view schematic diagram of the structure of the second evaporator provided by the present invention is shown.

[0021] The above figures include the following reference numerals:

[0022] 10. Heat pump system; 11. First heat exchanger;

[0023] 12. Second heat exchanger; 121. First heat exchange section; 122. Second heat exchange section; 123. Heat transfer element; 1231. Heat absorption end; 1232. Heat release end; 124. Fin structure; 125. First branch pipe; 126. First confluence pipe; 127. Second branch pipe; 128. Second confluence pipe;

[0024] 13. First circulation pipeline; 14. Compressor; 15. Gas-liquid separator; 16. Expansion valve; 17. Filter; 18. Liquid storage tank; 19. Second water pump;

[0025] 20. Solar energy system; 21. Photovoltaic backsheet; 22. Second circulation pipeline; 23. Second micro heat pipe array; 24. Third flow pipe. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 4 As shown in the figure, this invention provides a heat pump device, which includes a heat pump system 10 and a solar energy system 20. The heat pump system 10 includes a first heat exchanger 11, a second heat exchanger 12, and a first circulation pipe 13 connected to each other. The first circulation pipe 13 contains a first refrigerant. The first heat exchanger 11 is located indoors, and the second heat exchanger 12 is located outdoors. The second heat exchanger 12 has a first heat exchange section 121 and a second heat exchange section 122 that are independent of each other. The first heat exchange section 121 is connected to the first circulation pipe 13 and exchanges heat with the first refrigerant. The second heat exchanger 12 also includes a fin structure 124 disposed between the first heat exchange section 121 and the second heat exchange section 122, and the second heat exchange section 122 exchanges heat with the fin structure 124. The solar energy system 20 includes a photovoltaic backsheet 21 and a second circulation pipe 22. The second circulation pipe 22 contains a second refrigerant. The second circulation pipe 22 abuts against the photovoltaic backsheet 21 and is connected to a second heat exchange section 122, which exchanges heat with the second refrigerant.

[0028] The specific types of the first and second refrigerants are not specified.

[0029] In this embodiment, the first refrigerant is ethylene glycol, and the second refrigerant is an aqueous solution.

[0030] Applying the technical solution of this invention, when the heat pump system 10 operates in heating mode, the high-temperature first refrigerant flows through the first heat exchanger 11 and exchanges heat with the user's low-temperature water, heating the low-temperature water to high-temperature water for heating. At this time, the first heat exchanger 11 acts as a condenser, and the second heat exchanger 12 acts as an evaporator. Subsequently, the low-temperature first refrigerant exchanges heat with the first heat exchange section 121 of the second heat exchanger 12 through the first circulation pipe, and exchanges heat with the outside air through the fin structure 124, thus heating the low-temperature first refrigerant. The second refrigerant continues to exchange heat with the photovoltaic backsheet 21 through the second circulation pipe 22, using the heat from the photovoltaic backsheet 21 to raise its temperature. The heated second refrigerant then continues to exchange heat with the second heat exchange section 122 through the second circulation pipe 22, transferring heat from the second refrigerant to the fin structure 124 to heat the fin structure 124 and reduce frost formation on the fin structure 124. This eliminates the need to heat the fin structure 124 via the reverse circulation of the heat pump system 10. By combining with the solar energy system 20, the waste heat from the photovoltaic backsheet 21 is used to heat the fin structure, preventing the accumulation of frost on the fin structure 124, improving the heat transfer efficiency of the second heat exchanger 12, avoiding affecting the heating efficiency of the heat pump system 10, and improving the energy utilization rate of the system. At the same time, the low-temperature second refrigerant can be used to exchange heat with the photovoltaic backsheet 21, reducing the temperature of the photovoltaic backsheet 21 and improving the power generation efficiency of the solar energy system.

[0031] like Figure 2 and Figure 3 As shown, the second heat exchanger 12 includes a heat transfer element 123, which is disposed between the first heat exchange section 121 and the second heat exchange section 122. The heat transfer element 123 has a heat absorption end 1231 and a heat release end 1232 disposed opposite to each other. The heat absorption end 1231 abuts against the second heat exchange section 122, and the heat release end 1232 abuts against the first heat exchange section 121. A fin structure 124 is disposed on the heat transfer element 123, and the second heat exchange section 122 exchanges heat with the fin structure 124 through the heat absorption end 1231. Heat is transferred from the second heat exchange section 122 to the fin structure 124 via the heat transfer element 123. The fin structure 124 then transfers heat to the first heat exchange section 121 via the heat transfer element 123. This design increases the coverage and heat exchange area of ​​the fin structure 124 by increasing the structure of the heat transfer element 123, thereby increasing the contact area between the heat transfer element 123 and the fin structure 124, enhancing the heating effect on the fin structure 124, and further reducing frost formation on the fin structure 124. Simultaneously, it also enhances the heat transfer effect between the fin structure 124 and the first heat exchange section 121.

[0032] The specific structure of the heat transfer element 123 is not limited; it can be a metal plate, heat pipe, or microchannel, etc. Similarly, the specific structure of the first heat exchange section 121 and the second heat exchange section 122 is not limited; they can be heat-conducting corrugated pipes, metal plates, etc.

[0033] Specifically, the heat transfer element 123 includes a first micro heat pipe array, which has a first evaporation section and a first condensation section that are interconnected. The first evaporation section contains a first working fluid that flows between the first evaporation section and the first condensation section. The first evaporation section abuts against a second heat exchange section 122, and the end of the first evaporation section near the second heat exchange section 122 forms a heat absorption end 1231. The first condensation section abuts against the first heat exchange section 121, and the end of the first condensation section near the first heat exchange section 121 forms a heat release end 1232. A fin structure 124 is disposed on the outer wall of the first micro heat pipe array. When the high-temperature second refrigerant flows through the second heat exchange section 122, it heats the second heat exchange section 122. The second heat exchange section 122 comes into contact with the first evaporation section and transfers heat to the first evaporation section, which in turn heats the first working fluid. The first working fluid absorbs heat and vaporizes. The vaporized first working fluid moves upward into the first condensation section. The temperature of the first condensation section and the first heat exchange section 121 is relatively low at this time. The first working fluid condenses and releases heat in the first condensation section, which in turn raises the temperature of the first micro heat pipe array, thereby heating the fin structure 124 on the outer wall of the first micro heat pipe array. The micro heat pipe array is existing technology and will not be described in detail here.

[0034] The fin structure 124 includes multiple fins, which are fixed to the outer wall of the first micro heat pipe array and spaced apart on both sides of the array along its extension direction. This arrangement increases the contact area between the fin structure 124 and the first micro heat pipe array, thereby increasing heat exchange efficiency. Furthermore, the position and spacing of the fins can be adjusted according to heat exchange requirements, enhancing the flexibility of the second heat exchanger 12.

[0035] In this embodiment, the fins are straight plates. In other embodiments, the fins can be curved plates, corrugated plates, folded plates, or other similar structures.

[0036] In this application, the extension directions of the first heat exchange section 121 and the second heat exchange section 122 are parallel to each other. The heat transfer element 123 includes a plurality of first micro heat pipe arrays, which are spaced apart along the extension direction of the first heat exchange section 121. Multiple fin structures 124 are provided, with each fin structure 124 corresponding to one of the multiple first micro heat pipe arrays. The combination of the multiple first micro heat pipe arrays and the multiple fin structures 124 can increase the heat exchange area of ​​the second heat exchanger 12, thereby improving the heat exchange efficiency of the second heat exchanger 12.

[0037] Furthermore, the first heat exchange section 121 includes a first flow pipe, both ends of which (i.e., the inlet and the outlet) are connected to the first circulation pipe 13, forming a circulation path where the first refrigerant circulates. The first flow pipe abuts against the heat dissipation end 1232. The second heat exchange section 122 includes a second flow pipe, both ends of which (i.e., the inlet and the outlet) are connected to the second circulation pipe 22, forming a circulation path where the second refrigerant circulates. The second flow pipe abuts against the heat absorption end 1231. With the above configuration, the structure is simple and easy to manufacture and install. Moreover, compared to heat exchange with the refrigerant in the circulation pipe through other structures, by setting the heat exchange section as a flow pipe, the refrigerant flows directly through the flow pipe and directly contacts the pipe wall for heat exchange, thus improving the heat exchange efficiency of the heat exchange section.

[0038] Specifically, the first flow tube has multiple first flow channels, the extension direction of which forms an angle with the extension direction of the heat transfer element 123. These multiple first flow channels are distributed along the extension direction of the heat transfer element 123, and both ends of each first flow channel are connected to the first circulation pipe 13. The second flow tube has multiple second flow channels, the extension direction of which forms an angle with the extension direction of the heat transfer element 123. These multiple second flow channels are distributed along the extension direction of the heat transfer element 123, and both ends of each second flow channel are connected to the second circulation pipe 22. Through this configuration, the first flow tube has a flat overall structure, i.e., a microchannel flat tube structure. This avoids the disadvantage of conventional round tubes requiring special structures to fit tightly with the first micro heat pipe array. It increases the contact area between the first flow tube and the first micro heat pipe array, reduces contact thermal resistance, increases the effective heat exchange area, and eliminates the need for additional connection structures. This improves heat exchange efficiency while simplifying the structure of the heat exchanger.

[0039] like Figures 2 to 4 As shown, the first heat exchange section 121, the second heat exchange section 122, the heat transfer element 123, and multiple finned structures 124 cooperate to form a heat exchange unit. The heat pump system 10 includes multiple spaced-apart heat exchange units, and the distribution direction of the multiple heat exchange units is perpendicular to the extension direction of the first heat exchange section 121 and the extension direction of the heat transfer element 123, respectively. This can further increase the heat exchange area of ​​the second heat exchanger 12 and the refrigerant flow rate, thereby meeting a larger heating demand and improving the operating capacity and adaptability of the heat pump system 10.

[0040] like Figure 2As shown, the second heat exchanger also includes a first branch pipe 125, a first confluence pipe 126, a second branch pipe 127, and a second confluence pipe 128. The first branch pipe 125 has a first refrigerant inlet and multiple first branch ports that are interconnected. The first refrigerant inlet is connected to a first circulation pipeline, and the multiple first branch ports are each connected to one end of a multiple first flow pipe, wherein a single first branch port is connected to one end of a multiple first flow channel. The first confluence pipe 126 has a first refrigerant outlet and multiple first collector ports that are interconnected. The first refrigerant outlet is connected to the first circulation pipeline, and the multiple first collector ports are each connected to the other end of a multiple first flow pipe, wherein a single first collector port is connected to the other end of a multiple first flow channel.

[0041] Specifically, the second branch pipe 127 has a second refrigerant inlet and multiple second branch ports that are interconnected. The second refrigerant inlet is connected to the second circulation pipe, and the multiple second branch ports are each connected to one end of a multiple second flow pipe, wherein a single second branch port is connected to one end of a multiple second flow channel. The second confluence pipe 128 has a second refrigerant outlet and multiple second manifolds that are interconnected. The second refrigerant outlet is connected to the second circulation pipe, and the multiple second manifolds are each connected to the other end of a multiple second flow pipe, wherein a single second manifold is connected to the other end of a multiple second flow channel.

[0042] like Figure 1 As shown, the solar energy system 20 also includes a second micro heat pipe array 23 and a third flow pipe 24. Both ends of the third flow pipe 24 are connected to the second circulation pipe 22. The second micro heat pipe array 23 has a second evaporation section and a second condensation section that are interconnected. The second evaporation section contains a second working fluid, which flows between the second evaporation section and the second condensation section. The second evaporation section abuts against the photovoltaic backsheet 21, and the second condensation section abuts against the third flow pipe 24. The second evaporation section of the second micro heat pipe array 23 exchanges heat with the photovoltaic backsheet 21, and the second condensation section exchanges heat with the third flow pipe 24. The high-temperature photovoltaic backsheet 21 transfers the waste heat of the solar system to the second evaporation section, which in turn heats the second working fluid. After absorbing heat, the second working fluid vaporizes and moves to the second condensation section. The temperature of the second condensation section and the third flow pipe 24 is relatively low at this time. The second working fluid condenses and releases heat in the second condensation section, which in turn raises the temperature of the second micro heat pipe array and the third flow pipe 24, thereby heating the second refrigerant in the third flow pipe 24. Subsequently, the heated second refrigerant is used to heat the fin structure 124.

[0043] Specifically, the solar energy system 20 includes multiple photovoltaic backplates 21, multiple second micro heat pipe arrays 23, and multiple third flow pipes 24. The multiple second micro heat pipe arrays 23 and the multiple third flow pipes 24 are respectively arranged in a one-to-one correspondence with the multiple photovoltaic backplates 21, and the multiple third flow pipes 24 are respectively connected to the second circulation pipes 22.

[0044] In this application, the contact between the micro heat pipe array and each flow pipe or photovoltaic backsheet can be achieved by welding or bonding.

[0045] In this application, a first water pump is installed on the second circulation pipeline 22, and the first water pump is used to control the flow rate in the second circulation pipeline 22. An expansion valve 16 is installed on the first circulation pipeline 13, and the expansion valve 16 is used to control the flow rate in the first circulation pipeline 13.

[0046] Specifically, the heat pump system 10 also includes a compressor 14, a gas-liquid separator 15, a filter 17, a liquid storage tank 18, and a second water pump 19. The compressor 14, gas-liquid separator 15, filter 17, and liquid storage tank 18 are all connected to the first circulation pipeline 13. The above structures are all conventional components of the heat pump system 10 and are existing technologies. The connection methods and functions will not be described in detail here. A water pipe is also provided on the first heat exchanger 11. The water pipe is connected to the external user's water supply. Low-temperature water flows into the first heat exchanger 11 from the water pipe, exchanges heat with the first refrigerant in the first circulation pipeline, and then flows out. The second water pump 19 is installed on the water pipe.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0049] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0050] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0051] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A heat pump device, characterized in that, The heat pump device includes: The heat pump system (10) includes a first heat exchanger (11), a second heat exchanger (12), and a first circulation pipe (13) connected to each other. The first circulation pipe (13) contains a first refrigerant. The first heat exchanger (11) is located indoors, and the second heat exchanger (12) is located outdoors. The second heat exchanger (12) has a first heat exchange section (121) and a second heat exchange section (122) that are independent of each other. The first heat exchange section (121) is connected to the first circulation pipe (13) and exchanges heat with the first refrigerant. The second heat exchanger (12) also includes a fin structure (124) which is disposed between the first heat exchange section (121) and the second heat exchange section (122). The second heat exchange section (122) exchanges heat with the fin structure (124). The solar energy system (20) includes a photovoltaic backsheet (21) and a second circulation pipeline (22). The second circulation pipeline (22) contains a second refrigerant. The second circulation pipeline (22) abuts against the photovoltaic backsheet (21). The second circulation pipeline (22) is connected to a second heat exchange section (122). The second heat exchange section (122) exchanges heat with the second refrigerant.

2. The heat pump device according to claim 1, characterized in that, The second heat exchanger (12) includes a heat transfer element (123), which is disposed between the first heat exchange section (121) and the second heat exchange section (122). The heat transfer element (123) has a heat absorption end (1231) and a heat release end (1232) disposed opposite to each other. The heat absorption end (1231) abuts against the second heat exchange section (122), and the heat release end (1232) abuts against the first heat exchange section (121). The fin structure (124) is disposed on the heat transfer element (123), and the second heat exchange section (122) exchanges heat with the fin structure (124) through the heat absorption end (1231).

3. The heat pump device according to claim 2, characterized in that, The heat transfer element (123) includes a first micro heat pipe array, which has a first evaporation section and a first condensation section that are interconnected. The first evaporation section contains a first working fluid that flows between the first evaporation section and the first condensation section. The first evaporation section abuts against the second heat exchange section (122). The end of the first evaporation section near the second heat exchange section (122) forms the heat absorption end (1231). The first condensation section abuts against the first heat exchange section (121). The end of the first condensation section near the first heat exchange section (121) forms the heat release end (1232). The fin structure (124) is disposed on the outer wall of the first micro heat pipe array.

4. The heat pump device according to claim 3, characterized in that, The fin structure (124) includes multiple fins, which are fixed on the outer wall of the first micro heat pipe array and are distributed at intervals on both sides of the first micro heat pipe array along the extension direction of the first micro heat pipe array.

5. The heat pump device according to claim 3, characterized in that, The extension directions of the first heat exchange section (121) and the second heat exchange section (122) are parallel to each other. The heat transfer element (123) includes a plurality of first micro heat pipe arrays. The plurality of first micro heat pipe arrays are distributed at intervals along the extension direction of the first heat exchange section (121). There are a plurality of fin structures (124). The plurality of fin structures (124) are arranged in a one-to-one correspondence with the plurality of first micro heat pipe arrays.

6. The heat pump device according to claim 2, characterized in that, The first heat exchange section (121) includes a first flow pipe, both ends of which are connected to the first circulation pipe (13), and the first flow pipe abuts against the heat dissipation end (1232); The second heat exchange section (122) includes a second flow pipe, both ends of which are connected to the second circulation pipe (22), and the second flow pipe abuts against the heat absorption end (1231).

7. The heat pump device according to claim 6, characterized in that, The first flow pipe has multiple first flow channels. The extension direction of the first flow channels is at an angle to the extension direction of the heat transfer element (123). The multiple first flow channels are distributed along the extension direction of the heat transfer element (123). Both ends of the first flow channels are connected to the first circulation pipe (13). The second flow pipe has multiple second flow channels. The extension direction of the second flow channels is at an angle to the extension direction of the heat transfer element (123). The multiple second flow channels are distributed along the extension direction of the heat transfer element (123). Both ends of the second flow channels are connected to the second circulation pipe (22).

8. The heat pump device according to claim 2, characterized in that, The first heat exchange section (121), the second heat exchange section (122), the heat transfer element (123), and the plurality of fin structures (124) cooperate to form a heat exchange unit. The heat pump system (10) includes a plurality of spaced heat exchange units. The distribution direction of the plurality of heat exchange units is perpendicular to the extension direction of the first heat exchange section (121) and the extension direction of the heat transfer element (123).

9. The heat pump device according to claim 1, characterized in that, The solar energy system (20) further includes a second micro heat pipe array (23) and a third flow pipe (24). The two ends of the third flow pipe (24) are connected to the second circulation pipe (22). The second micro heat pipe array (23) has a second evaporation section and a second condensation section that are interconnected. The second evaporation section contains a second working fluid, which flows between the second evaporation section and the second condensation section. The second evaporation section abuts against the photovoltaic backsheet (21), and the second condensation section abuts against the third flow pipe (24).

10. The heat pump device according to claim 1, characterized in that, A first water pump is installed on the second circulation pipeline (22), and an expansion valve (16) is installed on the first circulation pipeline (13).

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