A photovoltaic module

Abstract

The utility model provides a kind of photovoltaic module, it is related to solar power generation equipment technical field, photovoltaic module includes photovoltaic board and blow inflation heat exchanger, the blow inflation heat exchanger is located on the photovoltaic board, the blow inflation heat exchanger includes circulation loop and heat pump unit, the heat pump unit is located on the circulation loop.The utility model discloses photovoltaic module, by the blow inflation heat exchanger is located on photovoltaic board, blow inflation heat exchanger is equipped with heat pump unit and circulation loop, heat pump unit drives cooling medium to circulate in circulation loop, by cooling medium can be mutually heat exchanged with photovoltaic board, to make the heat on photovoltaic board transfer to cooling medium, significantly improve the energy conversion efficiency of photovoltaic module.In addition, by blow inflation heat exchanger and photovoltaic board heat exchange, can significantly reduce the heat radiation and the heat generated by photovoltaic power generation itself combined together to cause the working efficiency of photovoltaic board to decline.

Description

Technical Field

[0001] This utility model relates to the field of solar power generation equipment technology, and in particular to a photovoltaic module. Background Technology

[0002] A solar photovoltaic panel is a device that uses solar energy to generate electricity. Sunlight consists of 43% visible light, 50% thermal radiation, and 7% ultraviolet radiation.

[0003] However, when solar photovoltaic panels generate electricity, only 43% of the visible light is utilized, while 50% of the thermal radiation is typically wasted, resulting in limited energy conversion efficiency. Furthermore, the combined effect of thermal radiation and the heat generated by the photovoltaic power generation itself leads to a decrease in the panel's efficiency.

[0004] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a photovoltaic module with high energy conversion efficiency of solar photovoltaic panels.

[0006] To achieve the above objectives, the present invention employs the following technical means: A photovoltaic module, comprising: Photovoltaic panels; An expansion heat exchanger is mounted on the photovoltaic panel. The expansion heat exchanger includes a circulation loop and a heat pump unit, which is located on the circulation loop.

[0007] Optionally, the circulation loop includes an inlet pipe and an outlet pipe, which are arranged on the same straight line and extend in opposite directions.

[0008] Optionally, the circulation loop further includes multiple sets of flow pipes arranged in parallel with each other.

[0009] Optionally, the flow tube includes a first flow section, a second flow section, and a third flow section. The first flow section is connected to the second flow section and is arranged perpendicular to the second flow section. The second flow section is connected to the third flow section and is arranged perpendicular to the third flow section.

[0010] Optionally, each set of flow tubes includes two branch tubes connected to each other at both ends.

[0011] Optionally, multiple balance tubes are provided between the multiple sets of flow tubes, and each balance tube passes through multiple flow tubes.

[0012] Optionally, the flow tube is bent.

[0013] Optionally, the heat pump unit includes a compressor, the input end of which is connected to the liquid outlet pipe and the output end of which is connected to the liquid inlet pipe.

[0014] Optionally, the photovoltaic panel is provided with two mounting holes, the liquid inlet pipe passes through one of the mounting holes, and the liquid outlet pipe passes through the other mounting hole.

[0015] Optionally, it includes two blown heat exchangers, which are bonded to the front and back sides of the photovoltaic panel.

[0016] Compared with the prior art, this utility model brings the following technical effects: This utility model discloses a photovoltaic module that, by incorporating a blown heat exchanger onto the photovoltaic panel, includes a heat pump unit and a circulation loop. The heat pump unit drives a cooling medium to circulate within the loop, allowing heat exchange between the cooling medium and the photovoltaic panel. This transfers heat from the photovoltaic panel to the cooling medium, significantly improving the energy conversion efficiency of the photovoltaic module. Furthermore, the heat exchange between the blown heat exchanger and the photovoltaic panel significantly reduces the combined effect of thermal radiation and the heat generated by the photovoltaic power generation itself, which could lead to a decrease in the photovoltaic panel's efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A plan view of a photovoltaic module according to some embodiments of the present invention is shown; Figure 2 A schematic diagram of the structure of a loop in some embodiments of the present invention is shown.

[0019] Explanation of key component symbols: 10-Circulation loop; 11-Inlet pipe; 12-Flow pipe; 121-First flow section; 122-Second flow section; 123-Third flow section; 13-Outlet pipe; 14-Balance pipe; 20-Heat pump unit. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments of the present invention are described in detail below, examples of which 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.

[0022] Please see Figure 1 and Figure 2 This utility model provides a photovoltaic module, which includes a photovoltaic panel and a blown heat exchanger, with the blown heat exchanger disposed on the photovoltaic panel.

[0023] The blown heat exchanger includes a circulation loop 10 and a heat pump unit 20. The heat pump unit 20 is located on the circulation loop 10 and is used to drive the cooling medium to circulate in the circulation loop 10 and exchange heat with it.

[0024] This photovoltaic module utilizes a blown heat exchanger mounted on the photovoltaic panel. The blown heat exchanger includes a heat pump unit 20 and a circulation loop 10. The heat pump unit 20 drives a cooling medium to circulate within the circulation loop 10. This cooling medium allows for heat exchange with the photovoltaic panel, transferring heat from the photovoltaic panel to the cooling medium, significantly improving the energy conversion efficiency of the photovoltaic module. Furthermore, the heat exchange between the blown heat exchanger and the photovoltaic panel significantly reduces the combined effect of thermal radiation and the heat generated by the photovoltaic power generation itself, which could lead to a decrease in the photovoltaic panel's efficiency.

[0025] Furthermore, the photovoltaic module includes two blown heat exchangers, which are bonded or stacked on the front and back sides of the photovoltaic panel.

[0026] To ensure the efficiency of the blown heat exchanger, a tight fit must be maintained between the heat exchanger and the photovoltaic panel. This tight connection can be achieved through adhesive bonding or layering, ensuring stable and reliable operation. By placing two blown heat exchangers on either side of the photovoltaic panel, the contact area can be maximized, further improving the efficiency of the photovoltaic module.

[0027] In one specific embodiment, the circulation loop 10 includes an inlet pipe 11, a flow pipe 12, and an outlet pipe 13, with the flow pipe 12 connected to the inlet pipe 11 and the outlet pipe 13.

[0028] In the circulation loop 10, the cooling medium enters the flow pipe 12 through the inlet pipe 11, exchanges heat with the photovoltaic panel within the flow pipe 12, and finally leaves the flow pipe 12 through the outlet pipe 13, then enters the heat pump unit 20, and finally returns to the inlet flow pipe 12 from the heat pump unit 20. Thus, the cooling medium forms a complete heat cycle in the circulation loop 10. That is, the cooling medium gains energy and its temperature rises when exchanging heat with the photovoltaic panel. The cooling medium consumes energy and its temperature decreases in the heat pump unit 20.

[0029] The circulation loop 10 includes multiple sets of flow pipes 12 arranged in parallel, covering the entire photovoltaic panel arrangement. In this way, the multiple flow pipes 12 can shorten the diameter of the circulation loop 10, improve the efficiency of the cooling medium circulation, and thus enhance the working efficiency of the blown heat exchanger.

[0030] Furthermore, the flow tube 12 includes a first flow section 121, a second flow section 122, and a third flow section 123. The first flow section 121 is connected to the second flow section 122 and is arranged perpendicularly to the second flow section 122. The second flow section 122 is connected to the third connecting section and is arranged perpendicularly to the third connecting section.

[0031] In this embodiment, the first flow section 121, the second flow section 122, and the third flow section 123 are arranged in a strip shape and with bends, so that the area covered by the flow pipe 12 is the strip-shaped bend area of ​​the photovoltaic panel. Thus, when the flow distribution is uneven due to internal resistance among multiple flow pipes 12, adjacent flow pipes 12 can effectively compensate, maintaining a relatively uniform temperature on the photovoltaic panel, effectively preventing hot spot effects, reducing maintenance costs, and increasing service life. Furthermore, no structural modifications to the flow pipe 12 itself are required, resulting in low operating costs and high versatility.

[0032] For example, this embodiment has five flow pipes 12, which are the first flow pipe to the fifth flow pipe from top to bottom. When the flow rate of the cooling medium in the second flow pipe is small, the first flow pipe and the third flow pipe can compensate for the area covered by the second flow pipe.

[0033] It should be noted that the first flow section 121, the second flow section 122, and the third flow section 123 are all sections of the flow pipe 12, and all have the function of flowing cooling medium. The first flow section 121, the second flow section 122, and the third flow section 123 together form a U-shaped structure.

[0034] Furthermore, the circulation loop 10 also includes a plurality of parallel balancing pipes 14, which are disposed through the plurality of flow pipes 12.

[0035] Photovoltaic modules require high thermal uniformity to ensure that each area of ​​the photovoltaic panel maintains a relatively consistent temperature. Therefore, a balancing pipe 14 is installed to connect multiple flow pipes 12, allowing the cooling medium to exchange heat between different connecting pipes through the balancing pipe 14, thereby improving the temperature uniformity of the cooling medium within the multiple flow pipes 12. This ensures that all areas of the photovoltaic panel maintain a uniform temperature, effectively preventing the formation of hot spot effects.

[0036] Furthermore, a balancing pipe 14 is provided through the plurality of first flow sections 121, the plurality of second flow sections 122, and the plurality of third flow sections 123. This ensures that the temperature is uniform among the first flow sections 121, the second flow sections 122, and the third flow sections 123.

[0037] In one specific embodiment, each set of flow pipes 12 includes two branch pipes connected to each other at both ends. In this way, the arrangement of the two branch pipes can increase the contact area of ​​the flow pipe 12 with the photovoltaic panel, thereby further improving the heat exchange efficiency of the flow pipe 12.

[0038] In one specific embodiment, the flow tube 12 is bent.

[0039] In the actual assembly process, an electrical box is installed on the photovoltaic panel. The flow pipe 12 is bent in the area corresponding to the electrical box so that the flow pipe 12 avoids the electrical box and avoids interference with the electrical box, so that the blown heat exchanger can be stably assembled on the photovoltaic panel.

[0040] In one specific embodiment, the inlet pipe 11 and the outlet pipe 13 are arranged on the same straight line and extend in opposite directions. This symmetrical and modular design of the inlet pipe 11 and outlet pipe 13 allows for symmetrical pipe distribution, further improving the heat uniformity of the circulation loop 10. It also ensures that the inlet pipe 11 and outlet pipe 13 are on the same side, thus achieving a foolproof, one-way installation of the heat exchanger onto the photovoltaic module, and enabling double-sided installation. This prevents defective products due to worker negligence, improving production efficiency while reducing production difficulty.

[0041] In one specific embodiment, the photovoltaic panel is provided with two mounting holes (not shown). The liquid inlet pipe 11 passes through one mounting hole, and the liquid outlet pipe 13 passes through the other mounting hole. In this way, the liquid inlet pipe 11 and the liquid outlet pipe 13 are limited by the two mounting holes, which can effectively prevent the heat exchanger from being too far away from the photovoltaic panel due to interference, thereby preventing adhesion and causing the heat exchanger to malfunction.

[0042] In one specific embodiment, the heat pump unit 20 includes a compressor, the compressor's input end being connected to the outlet pipe 13 and its output end being connected to the inlet pipe 11. Thus, the compressor provides power to drive the cooling medium to circulate in the circulation loop 10, thereby providing power for the heat pump unit 20 to drive the cooling medium.

[0043] The working principle of the photovoltaic module in this embodiment is as follows: When photovoltaic power generation occurs, the heat pump unit 20 is started, and the compressor begins to work. The low-temperature refrigerant flows into the flow pipe 12 through the inlet pipe 11, where it absorbs the heat generated by the photovoltaic panels (as well as the heat from the environment and sunlight), thus becoming a high-temperature refrigerant. Driven by the heat pump unit 20, this heat energy is carried out from the outlet pipe 13 and returns to the heat pump unit 20. In the heat pump unit 20, the carried heat energy is released, converting the low-grade heat energy into easily usable high-grade heat energy (heating hot water). Then, under the action of the compressor, it becomes low-temperature refrigerant again; thus, the heat conversion cycle continues.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom still fall within the protection scope of this invention.

Claims

1. A photovoltaic module, characterized in that, include: A photovoltaic panel and a blown heat exchanger, wherein the blown heat exchanger is disposed on the photovoltaic panel, and the blown heat exchanger includes a circulation loop and a heat pump unit, wherein the heat pump unit is disposed on the circulation loop; The circulation loop includes an inlet pipe and an outlet pipe, which are arranged on the same straight line and extend in opposite directions. and multiple sets of flow pipes connected in parallel, The flow tube includes a first flow section, a second flow section, and a third flow section. The first flow section is connected to the second flow section and is arranged perpendicular to the second flow section. The second flow section is connected to the third flow section and is arranged perpendicular to the third flow section.

2. The photovoltaic module according to claim 1, characterized in that, Each set of flow tubes includes two branch tubes that are connected to each other at both ends.

3. The photovoltaic module according to claim 1, characterized in that, Multiple balance tubes are arranged between the multiple sets of flow tubes, and each balance tube passes through multiple flow tubes.

4. The photovoltaic module according to claim 1, characterized in that, The flow tube is bent.

5. The photovoltaic module according to claim 1, characterized in that, The heat pump unit includes a compressor, the input end of which is connected to the liquid outlet pipe and the output end of which is connected to the liquid inlet pipe.

6. The photovoltaic module according to claim 1, characterized in that, The photovoltaic panel is provided with two assembly holes, the liquid inlet pipe passes through one of the assembly holes, and the liquid outlet pipe passes through the other assembly hole.

7. The photovoltaic module according to claim 1, characterized in that, It includes two blown heat exchangers, which are bonded to the front and back sides of the photovoltaic panel.

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