Temperature control device of main-grid-free heterojunction solar cell

Abstract

The utility model relates to the technical field of solar energy, and discloses a main-grid-free heterojunction solar cell temperature control device which comprises a solar cell panel, the side of the solar cell panel is fixedly connected with an installation frame, the two sides of the upper end of the solar cell panel are fixedly connected with fans, and the upper end of the solar cell panel is fixedly connected with a water collection frame. The lower end of the water collecting frame is fixedly connected with a plurality of water spraying heads, the upper end of the water collecting frame is fixedly connected with a water conveying pipe, the side, away from the water collecting frame, of the water conveying pipe is fixedly connected with a water tank, the water tank is fixedly installed on the back of the solar cell panel, and the water conveying pipe is fixedly connected with a micro pump. A water film is formed on the surface of the solar cell panel, the water film can help to reduce the temperature of the surface of the cell through an evaporative cooling effect, so that the photoelectric conversion efficiency is improved, meanwhile, the water film can also clean the solar cell panel and remove dust and pollutants on the surface of the cell, and impurities are prevented from affecting photoelectric conversion.

Description

Technical Field

[0001] The present application relates to the field of solar energy technology, and in particular to a temperature control device for a busbar-free heterojunction solar cell. Background Art

[0002] The busbar-free heterojunction solar cell is an advanced solar cell technology developed by Japan's Sharp Corporation and Panasonic (formerly Sanyo) in the 1990s. The HIT cell combines the characteristics of crystalline silicon and amorphous silicon, using the amorphous silicon layer as a carrier transmission channel, and these layers surround the two sides of the crystalline silicon to form a heterostructure.

[0003] At present, when a busbar-less heterojunction solar cell is in use, if the surface temperature is too high, it will affect the efficiency of light energy conversion. According to the current solar panel test data, for every 1°C increase in temperature, the voltage of the solar panel will decrease, resulting in a 0.35% decrease in output power; but the lower the temperature, the higher the output power. The surface temperature of the solar panel is approximately between 45 and 65°C. Therefore, it is necessary to control the temperature of the solar cell in time and cool the solar panel to facilitate the conversion of light energy. Utility Model Content

[0004] In order to solve the problem, the present application provides a temperature control device for a busbar-free heterojunction solar cell.

[0005] The temperature control device of a busbar-free heterojunction solar cell provided in the present application adopts the following technical solution:

[0006] A temperature control device for a busbar-free heterojunction solar cell comprises a solar cell panel, wherein the sides of the solar cell panel are fixedly connected to a mounting frame, the two sides of the upper end of the solar cell panel are fixedly connected to fans, the upper end of the solar cell panel is fixedly connected to a water collecting frame, the lower end of the water collecting frame is fixedly connected to a plurality of sprinkler heads, the upper end of the water collecting frame is fixedly connected to a water transport pipe, the side of the water transport pipe away from the water collecting frame is fixedly connected to a water tank, the water tank is fixedly mounted on the back of the solar cell panel, the water transport pipe is fixedly connected to a micro pump, the lower end of the solar cell panel is fixedly connected to the collecting frame, the lower end of the collecting frame is fixedly connected to the collecting pipe, and the end of the collecting pipe away from the collecting frame is fixedly connected to the water tank.

[0007] Preferably, both sides of the installation frame are slidably connected to sliders, the upper ends of the sliders are fixedly connected to the fixed frame, the upper end of the fixed frame is slidably connected to the installation blocks, and the installation blocks are rotatably connected to the cleaning rollers when they are close to each other.

[0008] Preferably, the upper end of the mounting block is threadedly connected to a threaded rod, and the lower end of the threaded rod is rotatably connected to an inner wall of the fixed frame.

[0009] Preferably, the slider on one side is threadedly connected to a screw rod, and the screw rod is rotatably connected to the inner wall of the mounting frame.

[0010] Preferably, the sliding block on one side is slidably connected to a limiting rod, and the limiting rod is fixedly connected to an inner wall of the installation frame.

[0011] Preferably, the upper end of the screw rod is fixedly connected to a micro motor, the micro motor is fixedly connected to a protection frame, and the protection frame is fixedly connected to an outer wall of the mounting frame.

[0012] Preferably, the lower end of the solar cell panel is fixedly connected to the support frame, and the lower end of the support frame is fixedly connected to the base.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. In the utility model, water is retained on the surface of the solar panel by a water collecting frame and a nozzle arranged in the upper end of the solar panel, so that a water film is formed on the surface of the solar panel. The water film can help reduce the temperature of the battery surface through the evaporative cooling effect, thereby improving the photoelectric conversion efficiency. At the same time, the water film can also clean the solar panel, remove dust and pollutants on the battery surface, and prevent impurities from affecting the photoelectric conversion;

[0015] 2. In the present invention, the slider is driven to move by the screw rod, so that the installation block drives the cleaning roller to move, so that the cleaning roller can clean the residual water stains and impurities to avoid affecting the photoelectric conversion of the solar panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0017] Figure 2 is a schematic diagram of a second perspective stereoscopic structure of an embodiment of the application;

[0018] Figure 3 is a schematic structural diagram of a screw rod and a limit rod according to an embodiment of the application;

[0019] Figure 4 It is an application example Figure 3 Schematic diagram of the A structure.

[0020] Explanation of the accompanying reference numerals: 1. Solar panel; 2. Mounting frame; 3. Collecting frame; 4. Collecting pipe; 5. Water collecting frame; 6. Water transport pipe; 7. Water tank; 8. Micro pump; 9. Fan; 10. Slider; 11. Fixed frame; 12. Mounting block; 13. Threaded rod; 14. Cleaning roller; 15. Micro motor; 16. Limit rod; 17. Support frame; 18. Screw. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4This application is described in further detail.

[0022] The embodiment of the present application discloses a temperature control device for a busbar-free heterojunction solar cell. Figure 1-4 , a temperature control device for a non-busbar heterojunction solar cell, comprising a solar panel 1, a mounting frame 2 is fixedly connected to the side of the solar panel 1, a fan 9 is fixedly connected to both sides of the upper end of the solar panel 1, and the wind blown by the fan 9 is blown toward the surface of the solar panel 1, thereby accelerating the air flow speed on the surface of the solar panel 1, thereby accelerating the heat dissipation;

[0023] The upper end of the solar panel 1 is fixedly connected to the water collecting frame 5, the lower end of the water collecting frame 5 is fixedly connected to a plurality of sprinkler heads, the upper end of the water collecting frame 5 is fixedly connected to the water transport pipe 6, the side of the water transport pipe 6 away from the water collecting frame 5 is fixedly connected to the water tank 7, the water tank 7 is fixedly installed on the back of the solar panel 1, the water transport pipe 6 is fixedly connected to the micro pump 8, the lower end of the solar panel 1 is fixedly connected to the collecting frame 3, the lower end of the collecting frame 3 is fixedly connected to the collecting pipe 4, and the end of the collecting pipe 4 away from the collecting frame 3 is fixedly connected to the water tank 7;

[0024] The water in the water tank 7 is transported from the water transport pipe 6 by the micro pump 8, and the water transport pipe 6 transports the clean water to the water collection frame 5, and flows out from the nozzle, so that the water flows on the solar cell panel 1 and forms a water film, which can help reduce the temperature of the battery surface through the evaporative cooling effect, thereby improving the photoelectric conversion efficiency. The collection frame 3 and the collection pipe 4 are set to recycle the water into the water tank 7.

[0025] By adopting the above technical solution, both sides of the installation frame 2 are slidably connected to the sliders 10, one side of the slider 10 is threadedly connected to the screw rod 18, the screw rod 18 is rotatably connected to the inner wall of the installation frame 2, and the other side of the slider 10 is slidably connected to the limit rod 16, the limit rod 16 is fixedly connected to the inner wall of the installation frame 2, the upper end of the slider 10 is fixedly connected to the fixed frame 11, the upper end of the fixed frame 11 is slidably connected to the installation block 12, and the installation blocks 12 are rotatably connected to the cleaning roller 14 on one side close to each other.

[0026] By adopting the above technical solution, the upper end of the mounting block 12 is threadedly connected to the threaded rod 13, and the lower end of the threaded rod 13 is rotatably connected to the inner wall of the fixed frame 11. The threaded rod 13 is used to drive the mounting block 12 to move, thereby adjusting the cleaning roller 14.

[0027] By adopting the above technical solution, in order to facilitate the rotation of the screw rod 18, a micro motor 15 is fixedly connected to the upper end of the screw rod 18, the micro motor 15 is fixedly connected to the protection frame, and the protection frame is fixedly connected to the outer wall of the mounting frame 2. The micro motor 15 drives the screw rod 18, so that the screw rod 18 drives the slider 10 to move, and the slider 10 drives the fixed frame 11 to move, the fixed frame 11 moves with the mounting block 12, and the mounting block 12 drives the cleaning roller 14 to move, and cleans the surface of the solar panel 1.

[0028] By adopting the above technical solution, the lower end of the solar cell panel 1 is fixedly connected to the support frame 17, and the lower end of the support frame 17 is fixedly connected to the base.

[0029] The implementation principle of a temperature control device for a main-grid-free heterojunction solar cell in an embodiment of the present application is as follows: start the micro pump 8 so that the micro pump 8 can transport the water in the water tank 7 from the water transport pipe 6, and the water transport pipe 6 transports the clean water to the water collecting frame 5 and flows out from the nozzle, so that the water flows on the solar cell panel 1 and forms a water film. The water film can help reduce the temperature of the battery surface through the evaporative cooling effect, thereby improving the photoelectric conversion efficiency. The water continues to flow down into the collecting frame 3. After the water is collected in the collecting frame 3, the collecting pipe 4 is used to transport the water to the water tank 7 for use. During this period, after the water evaporates, the water can be added to the water tank 7 for replenishment. The fan 9 can also be started so that the wind blown by the fan 9 blows toward the surface of the solar cell panel 1, thereby accelerating the air flow speed on the surface of the solar cell panel 1, thereby accelerating the heat dissipation. At the same time, the water film can also help remove dust and pollutants on the surface of the battery, which usually block sunlight and reduce battery efficiency.

[0030] Due to the formation of water film, dust in the air will adhere to the surface of the solar panel 1, so the threaded rods 13 on both sides can also be rotated to make the threaded rods 13 drive the mounting block 12 to move, and make the mounting block 12 descend, so that the mounting block 12 drives the cleaning roller 14 to descend and contact the surface of the solar panel 1, and then start the micro motor 15, so that the micro motor 15 drives the screw rod 18, so that the screw rod 18 drives the slider 10 to move, and the slider 10 drives the fixed frame 11 to move, the fixed frame 11 moves with the mounting block 12, and the mounting block 12 drives the cleaning roller 14 to move, and clean the surface of the solar panel 1, and wipe off the water stains to prevent the water stains from causing the refraction and reflection of part of the light, reducing the actual amount of light entering the battery, which may reduce the efficiency of photoelectric conversion, and at the same time wipe off the impurities on the surface of the solar panel 1.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature control device for a busbar-free heterojunction solar cell, comprising a solar cell panel (1), characterized in that: The solar panel (1) is fixedly connected to the mounting frame (2) on the side, the upper ends of the solar panel (1) are fixedly connected to the fan (9) on both sides, the upper end of the solar panel (1) is fixedly connected to the water collecting frame (5), the lower end of the water collecting frame (5) is fixedly connected to a plurality of water spray heads, the upper end of the water collecting frame (5) is fixedly connected to the water transport pipe (6), the side of the water transport pipe (6) away from the water collecting frame (5) is fixedly connected to the water tank (7), the water tank (7) is fixedly mounted on the back of the solar panel (1), the water transport pipe (6) is fixedly connected to the micro pump (8), the lower end of the solar panel (1) is fixedly connected to the collecting frame (3), the lower end of the collecting frame (3) is fixedly connected to the collecting pipe (4), and the end of the collecting pipe (4) away from the collecting frame (3) is fixedly connected to the water tank (7).

2. The temperature control device for a busbar-free heterojunction solar cell according to claim 1, characterized in that: Both sides of the installation frame (2) are slidably connected to sliders (10), the upper end of the slider (10) is fixedly connected to a fixed frame (11), the upper end of the fixed frame (11) is slidably connected to a mounting block (12), and the mounting blocks (12) are rotatably connected to a cleaning roller (14) when they are close to each other.

3. The temperature control device for a busbar-free heterojunction solar cell according to claim 2, characterized in that: The upper end of the mounting block (12) is threadedly connected to a threaded rod (13), and the lower end of the threaded rod (13) is rotatably connected to the inner wall of the fixing frame (11).

4. The temperature control device for a busbar-free heterojunction solar cell according to claim 2, characterized in that: The slider (10) on one side is threadedly connected to a screw rod (18), and the screw rod (18) is rotatably connected to the inner wall of the installation frame (2).

5. The temperature control device for a busbar-free heterojunction solar cell according to claim 2, characterized in that: The slider (10) on one side is slidably connected to a limiting rod (16), and the limiting rod (16) is fixedly connected to the inner wall of the installation frame (2).

6. The temperature control device for a busbar-free heterojunction solar cell according to claim 4, characterized in that: The upper end of the screw rod (18) is fixedly connected to the micro motor (15), the micro motor (15) is fixedly connected to the protection frame, and the protection frame is fixedly connected to the outer wall of the installation frame (2).

7. The temperature control device for a busbar-free heterojunction solar cell according to claim 4, characterized in that: The lower end of the solar cell panel (1) is fixedly connected to a support frame (17), and the lower end of the support frame (17) is fixedly connected to a base.

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