Temperature control device of main-grid-free heterojunction solar cell
By using a cooling mechanism and water circulation components of a temperature control device, the problem of voltage drop caused by temperature rise in gridless heterojunction solar cells is solved, achieving efficient circulating cooling and temperature control to maintain photoelectric conversion efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG JIUYI NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-03-17
- Publication Date
- 2026-05-19
AI Technical Summary
When using gridless heterojunction solar cells, the increased temperature leads to a decrease in panel voltage, reduced output power, and lower photoelectric conversion efficiency.
The device employs a temperature control system, including a fixed frame, support column, circulating water tank, cooling water tank, refrigeration mechanism, water circulation component, and temperature adjustment and measurement component. The temperature is detected by the moving mechanism and temperature measurement component, and the refrigeration mechanism and water circulation component are activated to cool down the water, thereby achieving circulating cooling and temperature control.
It effectively reduces the temperature of the solar panel, prevents voltage drop, maintains photoelectric conversion efficiency, and achieves convenient circulating cooling and temperature control.
Smart Images

Figure CN224264941U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gridless heterojunction solar cell technology, and in particular to a temperature control device for gridless heterojunction solar cells. Background Technology
[0002] A gridless heterojunction solar cell is a type of solar cell that combines gridless technology and heterojunction technology. Traditional solar cells typically use grid lines to collect current, but the gridless design collects current by using finer grid lines or forming a conductive network directly on the cell, reducing shading losses and improving the cell's photoelectric conversion efficiency.
[0003] When gridless heterojunction solar cells are in use, sunlight causes the cell temperature to rise. As the temperature rises, the voltage of the solar panel decreases, the output power decreases, and thus the photoelectric conversion efficiency of the solar panel decreases. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a temperature control device for a gridless heterojunction solar cell, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A temperature control device for a gridless heterojunction solar cell includes a fixed frame. A solar panel body is fixedly connected to the left side of the fixed frame, and a support column is fixedly connected to the right side of the fixed frame. A reinforcing rod is fixedly connected to the surface of the support column. A circulating water tank is fixedly connected to the inner wall of the fixed frame, and the circulating water tank overlaps with the solar panel body. A partition is fixedly connected to the inner wall of the circulating water tank. A cooling water tank is fixedly connected to the right side of the circulating water tank. A cooling mechanism is installed inside the cooling water tank. A water circulation component is installed inside the circulating water tank. A moving mechanism is installed on the top surface of the fixed frame, and an adjustable temperature measuring component is installed above the fixed frame.
[0007] Preferably, the refrigeration mechanism consists of a temperature-conducting plate, a semiconductor refrigeration chip, a fan cover, and a cooling fan. The temperature-conducting plate is fixedly connected to the inner wall of the cooling water tank, the semiconductor refrigeration chip is fixedly connected to the inner wall of the temperature-conducting plate, the fan cover is fixedly connected to the right side of the cooling water tank, and the cooling fan is fixedly connected to the inner wall of the fan cover.
[0008] Preferably, the water circulation assembly consists of a return pipe, a suction pipe, and a water pump. The inlet end of the return pipe is fixedly connected to the inner wall of the circulating water tank, and the outlet end of the return pipe is fixedly connected to the inner wall of the cooling water tank. The outlet end of the suction pipe is fixedly connected to the inner wall of the circulating water tank, and the inlet end of the suction pipe is fixedly connected to the inner wall of the cooling water tank. The water pump is fixedly connected to the inner wall of the suction pipe and to the surface of the cooling water tank.
[0009] Preferably, the moving mechanism consists of a linear motor and a connecting plate, wherein the linear motor is fixedly connected to the top surface of the fixed frame, and the connecting plate is fixedly connected to the moving end of the linear motor.
[0010] Preferably, the temperature adjustment and measurement component consists of a fixed frame, a fixed sleeve, an infrared thermometer, and a drive motor. The fixed frame is fixedly connected to the surface of the connecting plate, the fixed sleeve is rotatably connected to the inner wall of the fixed frame, the infrared thermometer is fixedly connected to the inner wall of the fixed sleeve, the drive motor is fixedly connected to the back of the fixed frame, and the output end of the drive motor is rotatably connected to the inner wall of the fixed frame and fixedly connected to the surface of the fixed sleeve.
[0011] Preferably, the circulating water tank is rectangular and made of aluminum.
[0012] Preferably, there are multiple support columns, and all of the multiple support columns are located on the right side of the fixed frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The temperature control device of this gridless heterojunction solar cell can move and measure the temperature of the main body of the solar panel by activating the moving mechanism and adjusting the temperature measuring component. When the temperature is too high, the cooling mechanism is activated to lower the temperature of the coolant inside the cooling water tank, and the water circulation component is activated to draw low-temperature coolant into the circulating water tank. Through the heat conduction effect of the circulating water tank, heat exchange and cooling can be carried out on the main body of the solar panel and the coolant. At the same time, the coolant flows back to the cooling water tank through the water circulation component, thus carrying out cyclic cooling and cooling. This achieves the goal of facilitating cyclic cooling and temperature control of gridless heterojunction solar cells, avoiding the problem that the voltage decreases and the output power decreases when the solar panel temperature rises, thereby reducing the photoelectric conversion efficiency of the solar panel. Attached Figure Description
[0014] Figure 1 This is an isometric drawing of the structure of this utility model;
[0015] Figure 2 This is a right view of the structure of this utility model;
[0016] Figure 3 This is an enlarged view of the structure at point A of this utility model;
[0017] Figure 4 This is a cross-sectional view of the structure of this utility model;
[0018] Figure 5 This is an enlarged view of structure B in this utility model.
[0019] In the diagram: 1. Fixed frame; 2. Solar panel body; 3. Support column; 4. Reinforcing rod; 5. Circulating water tank; 6. Partition plate; 7. Cooling water tank; 8. Temperature guiding plate; 9. Semiconductor cooling chip; 10. Fan cover; 11. Cooling fan; 12. Return pipe; 13. Suction pipe; 14. Water pump; 15. Linear motor; 16. Connecting plate; 17. Fixing bracket; 18. Fixing sleeve; 19. Infrared thermometer; 20. Drive motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Reference Figure 1-5 A temperature control device for a gridless heterojunction solar cell includes a fixed frame 1. A solar panel body 2 is fixedly connected to the left side of the fixed frame 1, and multiple support columns 3 are fixedly connected to the right side of the fixed frame 1 to support the fixed frame 1 and improve its stability. Reinforcing rods 4 are fixedly connected to the surface of the support columns 3. A circulating water tank 5 is fixedly connected to the inner wall of the fixed frame 1 and overlaps with the solar panel body 2. The circulating water tank 5 is rectangular and made of aluminum metal, which has stronger thermal conductivity and facilitates better heat exchange and cooling. A partition 6 is fixedly connected to the inner wall of the circulating water tank 5. A cooling water tank 7 is fixedly connected to the right side of the circulating water tank 5. The cooling water tank 7 has a refrigeration mechanism inside, which consists of a temperature-conducting plate 8, a semiconductor cooling chip 9, a fan shroud 10, and a cooling fan 11. 8 is fixedly connected to the inner wall of the cooling water tank 7, the semiconductor cooling chip 9 is fixedly connected to the inner wall of the temperature guiding plate 8, the fan shroud 10 is fixedly connected to the right side of the cooling water tank 7, and the cooling fan 11 is fixedly connected to the inner wall of the fan shroud 10. These components are used to reduce the temperature of the coolant and improve the cooling efficiency. The circulating water tank 5 is equipped with a water circulation assembly, which consists of a return pipe 12, a suction pipe 13, and a water pump 14. The inlet end of the return pipe 12 is fixedly connected to the inner wall of the circulating water tank 5, and the outlet end of the return pipe 12 is fixedly connected to the inner wall of the cooling water tank 7. The outlet end of the suction pipe 13 is fixedly connected to the inner wall of the circulating water tank 5, and the inlet end of the suction pipe 13 is fixedly connected to the inner wall of the cooling water tank 7. The water pump 14 is fixedly connected to the inner wall of the suction pipe 13 and the surface of the cooling water tank 7. These components are used to drive the coolant to circulate and facilitate circulating cooling. The top surface of the fixed frame 1 is equipped with a moving mechanism, and an adjustable temperature measuring assembly is installed above the fixed frame 1.
[0022] Specifically, the moving mechanism consists of a linear motor 15 and a connecting plate 16. The linear motor 15 is fixedly connected to the top surface of the fixed frame 1, and the connecting plate 16 is fixedly connected to the moving end of the linear motor 15. It is used to drive the temperature measuring component to move back and forth, so as to facilitate automatic adjustment of the temperature detection position.
[0023] Specifically, the temperature measurement assembly consists of a fixed frame 17, a fixed sleeve 18, an infrared thermometer 19, and a drive motor 20. The fixed frame 17 is fixedly connected to the surface of the connecting plate 16, the fixed sleeve 18 is rotatably connected to the inner wall of the fixed frame 17, the infrared thermometer 19 is fixedly connected to the inner wall of the fixed sleeve 18, and the drive motor 20 is fixedly connected to the back of the fixed frame 17. The output end of the drive motor 20 is rotatably connected to the inner wall of the fixed frame 17 and fixedly connected to the surface of the fixed sleeve 18. This assembly is used to perform temperature detection on the main body 2 of the solar panel and facilitates adjustment of the detection angle.
[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0025] In use: First, start the infrared thermometer 19 to measure the surface temperature of the solar panel body 2 by detecting the infrared radiation energy emitted by the solar panel body 2. Start the drive motor 20 to drive the fixing sleeve 18 and the infrared thermometer 19 to rotate along the inner wall of the fixing frame 17, so that the temperature measuring angle can be adjusted. Start the linear motor 15 to drive the connecting plate 16 and the fixing frame 17 to move longitudinally. The movement of the fixing frame 17 drives the fixing sleeve 18 and the infrared thermometer 19 to move longitudinally, so that the temperature measuring position can be adjusted. When the temperature is too high, start the semiconductor cooling chip 9 to absorb and release heat. The heat absorption end of the semiconductor cooling chip 9 absorbs the heat inside the heat conduction plate 8 and the cooling water tank 7, thereby reducing the temperature of the coolant inside the cooling water tank 7. Start the water pump 14 to draw the low temperature coolant into the circulating water tank 5 through the suction pipe 13. Through the heat conduction effect of the circulating water tank 5, the solar panel body 2 and the coolant can be cooled by heat exchange. At the same time, the coolant flows back to the cooling water tank 7 through the return pipe 12, so that the circulating cooling can be carried out.
[0026] In summary, the temperature control device for this gridless heterojunction solar cell, by activating the moving mechanism and adjusting the temperature measuring component, can move and measure the temperature of the main body 2 of the solar panel. When the temperature is too high, the cooling mechanism is activated to lower the temperature of the coolant inside the cooling water tank 7, and the water circulation component is activated to draw low-temperature coolant into the circulating water tank 5. Through the heat conduction effect of the circulating water tank 5, heat exchange and cooling can be carried out on the main body 2 of the solar panel and the coolant. At the same time, the coolant flows back to the cooling water tank 7 through the water circulation component, thus carrying out cyclic cooling and cooling. This achieves the goal of facilitating cyclic cooling and temperature control of the gridless heterojunction solar cell, avoiding the problem of reduced voltage and output power due to increased solar panel temperature, which leads to a decrease in the photoelectric conversion efficiency of the solar panel. This device solves the problems mentioned in the background art.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A temperature control device for a gridless heterojunction solar cell, comprising a fixed frame (1), characterized in that, The fixed frame (1) is fixedly connected to the left side of the battery panel body (2), and the fixed frame (1) is fixedly connected to the right side of the support column (3). The support column (3) is fixedly connected to the surface of the reinforcing rod (4). The fixed frame (1) is fixedly connected to the inner wall of the circulating water tank (5), and the circulating water tank (5) overlaps with the battery panel body (2). The circulating water tank (5) is fixedly connected to the inner wall of the circulating water tank (5) with a partition (6). The circulating water tank (5) is fixedly connected to the right side of the circulating water tank (5) with a cooling water tank (7). The cooling water tank (7) is equipped with a refrigeration mechanism. The circulating water tank (5) is equipped with a water circulation component. The fixed frame (1) is equipped with a moving mechanism on the top surface. The fixed frame (1) is equipped with an adjustable temperature measuring component above it.
2. The temperature control device for a gridless heterojunction solar cell according to claim 1, characterized in that, The refrigeration mechanism consists of a temperature guide plate (8), a semiconductor refrigeration chip (9), a fan cover (10), and a heat dissipation fan (11). The temperature guide plate (8) is fixedly connected to the inner wall of the cooling water tank (7), the semiconductor refrigeration chip (9) is fixedly connected to the inner wall of the temperature guide plate (8), the fan cover (10) is fixedly connected to the right side of the cooling water tank (7), and the heat dissipation fan (11) is fixedly connected to the inner wall of the fan cover (10).
3. The temperature control device for a gridless heterojunction solar cell according to claim 1, characterized in that, The water circulation assembly consists of a return pipe (12), a suction pipe (13), and a water pump (14). The inlet end of the return pipe (12) is fixedly connected to the inner wall of the circulating water tank (5), and the outlet end of the return pipe (12) is fixedly connected to the inner wall of the cooling water tank (7). The outlet end of the suction pipe (13) is fixedly connected to the inner wall of the circulating water tank (5), and the inlet end of the suction pipe (13) is fixedly connected to the inner wall of the cooling water tank (7). The water pump (14) is fixedly connected to the inner wall of the suction pipe (13), and the water pump (14) is fixedly connected to the surface of the cooling water tank (7).
4. The temperature control device for a gridless heterojunction solar cell according to claim 1, characterized in that, The moving mechanism consists of a linear motor (15) and a connecting plate (16). The linear motor (15) is fixedly connected to the top surface of the fixed frame (1), and the connecting plate (16) is fixedly connected to the moving end of the linear motor (15).
5. The temperature control device for a gridless heterojunction solar cell according to claim 1, characterized in that, The temperature adjustment assembly consists of a fixed frame (17), a fixed sleeve (18), an infrared thermometer (19), and a drive motor (20). The fixed frame (17) is fixedly connected to the surface of the connecting plate (16), the fixed sleeve (18) is rotatably connected to the inner wall of the fixed frame (17), the infrared thermometer (19) is fixedly connected to the inner wall of the fixed sleeve (18), the drive motor (20) is fixedly connected to the back of the fixed frame (17), and the output end of the drive motor (20) is rotatably connected to the inner wall of the fixed frame (17), and the output end of the drive motor (20) is fixedly connected to the surface of the fixed sleeve (18).
6. The temperature control device for a gridless heterojunction solar cell according to claim 1, characterized in that, The circulating water tank (5) is rectangular and made of aluminum.
7. The temperature control device for a gridless heterojunction solar cell according to claim 1, characterized in that, The number of the support columns (3) is multiple, and all the support columns (3) are located on the right side of the fixed frame (1).