Monocrystalline silicon battery piece energy storage aging test equipment
By incorporating an expansion joint and an electrically controlled Peltier module into the aging test equipment for monocrystalline silicon solar cells, the effects of temperature changes and rain impacts are simulated, solving the problem that existing equipment cannot realistically reproduce composite stress scenarios and improving the accuracy of testing and the reliability of lifespan prediction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MIANGE (SHANGHAI) INFORMATION TECHNOLOGY CO LTD
- Filing Date
- 2026-02-04
- Publication Date
- 2026-05-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing monocrystalline silicon solar cell aging test equipment cannot realistically reproduce the combined scenario of two key factors—drastic temperature changes and dynamic rain impact—occurring simultaneously in a controllable and repeatable experimental process. This results in a weak correlation between traditional test results and actual outdoor aging, affecting the accuracy of lifespan prediction.
A test device for energy storage aging of monocrystalline silicon solar cells was designed. By setting telescopic bodies on both sides of the monocrystalline silicon solar cell to be tested to simulate rainwater erosion, and by combining an electronically controlled Peltier module to adjust the water temperature, and by adjusting the water flow speed with the flip angle of the clamping plate assembly, the synchronous simulation of temperature change and rainwater impact is achieved.
It effectively simulates outdoor composite stress conditions, improves the accuracy of aging tests for monocrystalline silicon solar cells, and enhances the reliability of lifetime prediction.
Smart Images
Figure CN121966450A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of monocrystalline silicon testing technology, and in particular to a monocrystalline silicon solar cell energy storage aging test device. Background Technology
[0002] With the widespread adoption of photovoltaic power generation technology, monocrystalline silicon solar cells, as the core of mainstream photovoltaic technology, directly determine the power output and lifespan of modules through their performance aging. In actual outdoor operation, cell aging is a complex process caused by the combined effects of multiple environmental factors, rather than a single stress. Among these, temperature and rainfall impact are two crucial and interrelated aging drivers. However, existing testing equipment and methods have the following problems: Most devices can only simulate temperature, humidity, or mechanical stress independently, and cannot realistically reproduce the combined scenario of two key factors—drastic temperature changes and dynamic rain impact—occurring simultaneously in a controllable and repeatable experimental process. At the same time, due to the failure to simulate the core combined stress conditions, the results of traditional single-item accelerated tests are often not strongly correlated with actual outdoor aging, resulting in insufficient accuracy in predicting lifespan and potentially leading to misjudgments of the product's long-term reliability. However, existing technologies do not detect the combined effects of temperature and rain impact.
[0003] To address this, we designed a single-crystal silicon solar cell energy storage aging test device. Summary of the Invention
[0004] The purpose of this invention is to solve the problem that most existing devices can only independently simulate temperature, humidity or mechanical stress, and cannot realistically reproduce the complex scenario of two key factors, drastic temperature changes and dynamic impact of rain, occurring simultaneously in a controllable and repeatable experimental process. Therefore, this invention proposes a single-crystal silicon solar cell energy storage aging test device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A monocrystalline silicon solar cell energy storage aging test device includes a mounting bracket, a current and voltage testing device, and a monocrystalline silicon solar cell to be tested. The mounting bracket is provided with a three-sided clamping plate assembly and a drive motor for driving the three-sided clamping plate assembly to rotate. The three-sided clamping plate assembly is provided with multiple side cylinders, and telescopic bodies slide inside the side cylinders. The three-sided clamping plate assembly is provided with a receiving bracket, and a liquid storage tank located below the monocrystalline silicon solar cell to be tested is placed on the receiving bracket. The liquid storage tank is connected to the side cylinders through a connecting hose, and a pump body is provided inside the liquid storage tank to introduce water into the connecting hose. The side wall of the side cylinder is equipped with a liquid passage assembly that communicates with the telescopic body. The side cylinder is equipped with a deflection switching mechanism to adjust the fluid flow rate. The telescopic body is equipped with an electronically controlled Peltier module to adjust the fluid temperature. The monocrystalline silicon solar cell under test has positive and negative electrodes. The current and voltage testing device is connected to the positive and negative electrodes through a connecting cable.
[0006] Preferably, the three-sided clamping plate assembly includes three side frames, which are connected in sequence by a connecting frame. The bottom of the side frame is provided with a base plate for supporting the monocrystalline silicon solar cell to be tested. The side frame is provided with lifting sliding holes and an electric clamping plate that slides through the lifting sliding holes and abuts against the monocrystalline silicon solar cell to be tested.
[0007] Preferably, a sliding cavity is provided inside the side cylinder, and the telescopic body slides coaxially within the sliding cavity via a sliding groove and a slider. The telescopic body is provided with an inner cavity, and a connecting hole is provided on the side wall of the inner cavity. The liquid passage assembly includes a first through hole, a second through hole, a third through hole, and a fourth through hole arranged in sequence, with the diameters of the first through hole, the second through hole, the third through hole, and the fourth through hole increasing sequentially. The diameter of the connecting hole is larger than that of the fourth through hole. The first through hole, the second through hole, and the third through hole are all connected to the liquid storage cylinder through a connecting hose.
[0008] Preferably, the telescopic body also has a connecting cavity communicating with the inner cavity, and the telescopic body also has an annular cavity coaxially arranged with the connecting cavity, and the electronically controlled Peltier module is installed in the annular cavity. The end of the telescopic body is provided with an installation cavity communicating with the connecting cavity, and an end spray head is installed in the installation cavity.
[0009] Preferably, the end spray head includes a mounting head, and the mounting head has a first spray hole. The mounting head has a plurality of second spray holes symmetrically arranged on both sides of the first spray hole, and the second spray holes are inclined. The plane where the first spray hole and the second spray hole are located is parallel to the upper surface of the monocrystalline silicon solar cell to be tested.
[0010] Preferably, an arc-shaped baffle that blocks the liquid passage assembly slides on the inner wall of the sliding cavity. One end of the arc-shaped baffle is fixed to the end of the telescopic body, and the other end of the arc-shaped baffle passes through the side cylinder. An end plate is fixed to the other end of the arc-shaped baffle.
[0011] Preferably, the deflection switching mechanism includes: A rotating disk rotates coaxially at the end of the side cylinder via a rotating shaft, and a counterweight is provided on the rotating disk. The electromagnetic generator assembly is arc-shaped and coaxially fixed to the end of the side cylinder. The side wall of the rotating disk is provided with a lever that abuts against and triggers the electromagnetic generator assembly.
[0012] Preferably, the electromagnetic generator assembly includes a first electromagnetic generator, a second electromagnetic generator, a third electromagnetic generator, and a fourth electromagnetic generator, and the first electromagnetic generator, the second electromagnetic generator, the third electromagnetic generator, and the fourth electromagnetic generator are connected end to end, and the lever is used to trigger and turn on the electromagnetic generator assembly.
[0013] Preferably, the end plate is provided with a first insert, a second insert, a third insert, and a fourth insert, the lengths of which decrease sequentially. Each of the first, second, third, and fourth electromagnetic generators has a corresponding insertion hole. The first, second, third, and fourth electromagnetic generators penetrate through the end of the side tube, and each of the first, second, third, and fourth inserts has an iron block on the side facing the electromagnetic generator assembly.
[0014] Preferably, a return spring is sleeved on the outer wall of the first insertion rod, and the two ends of the return spring are fixed to the electromagnetic generator assembly and the end plate, respectively.
[0015] The beneficial effects of this invention are as follows: 1. In this invention, multiple telescopic bodies are set on both sides of the monocrystalline silicon solar cell to be tested to spray water onto the upper surface of the cell, thereby simulating the outdoor rainwater washing scenario. At the same time, an electronically controlled Peltier module is used to heat or cool the sprayed water, thereby simulating outdoor temperature changes. This achieves combined control of the two factors of drastic temperature changes and dynamic impact of rainwater, enabling better aging testing of the monocrystalline silicon solar cell to be tested.
[0016] 2. In this invention, by controlling the adjustment of the swing angle of the monocrystalline silicon solar cell to be tested, the overall flow circulation speed of the water can be controlled. That is, the larger the swing angle of the monocrystalline silicon solar cell to be tested, the faster the overall flow speed of the water, thereby simulating the rainfall of rainwater erosion. Therefore, the third effect of aging detection control for the monocrystalline silicon solar cell to be tested can be achieved. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a monocrystalline silicon solar cell energy storage aging test device proposed in this invention; Figure 2 These are the upper and lower isometric views of a monocrystalline silicon solar cell energy storage aging test device proposed in this invention. Figure 3 This is a schematic diagram of the side cylinder structure in a monocrystalline silicon solar cell energy storage aging test device proposed in this invention; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 This is an isometric view of the side cylinder in a monocrystalline silicon solar cell energy storage aging test device proposed in this invention; Figure 6 This is a side cross-sectional view of the side cylinder in a monocrystalline silicon solar cell energy storage aging test device proposed in this invention; Figure 7 This is a left and right isometric view of the side cylinder in a monocrystalline silicon solar cell energy storage aging test device proposed in this invention; Figure 8 This is a schematic diagram of the end water spray head in a monocrystalline silicon solar cell energy storage aging test device proposed in this invention.
[0018] In the diagram: 1. Mounting bracket; 2. Monocrystalline silicon solar cell to be tested; 3. Side frame; 4. Lifting sliding hole; 5. Electric clamping plate; 6. Base plate; 7. Positive and negative electrodes; 8. Connecting cable; 9. Current and voltage testing device; 10. Liquid storage tank; 11. Connecting hose; 12. Drive motor; 13. Receiving bracket; 14. Side cylinder; 15. Telescopic body; 16. Inner cavity; 17. Connecting cavity; 18. Mounting cavity; 19. End spray head; 191. Mounting head; 192. First spray hole; 193. Second spray hole; 20. Annular cavity; 21. Electrically controlled Peltier module; 22. Slide groove; 23. Slider; 24. Sliding cavity; 25. Liquid passage assembly; 251. First through hole; 252. Second through hole; 253. Third through hole; 254. Fourth through hole; 26. Connecting hole; 27. End plate; 28. Arc-shaped baffle; 29. Rotating disk; 30. Rotating shaft; 31. Counterweight; 32. First insert rod; 33. Second insert rod; 34. Third insert rod; 35. Fourth insert rod; 36. Iron block; 37. Insertion hole; 38. Electromagnetic generator assembly; 381. First electromagnetic generator; 382. Second electromagnetic generator; 383. Third electromagnetic generator; 384. Fourth electromagnetic generator; 39. Paddle; 40. Return spring. Detailed Implementation
[0019] Reference Figures 1-8 A monocrystalline silicon solar cell energy storage aging test device includes a mounting bracket 1, a current and voltage testing device 9, and a monocrystalline silicon solar cell 2 to be tested. The mounting bracket 1 is provided with a three-sided clamping plate assembly, and the mounting bracket 1 is provided with a drive motor 12 for driving the three-sided clamping plate assembly to rotate. The output end of the drive motor 12 is fixed to the three-sided clamping plate assembly. Therefore, turning on the drive motor 12 can drive the three-sided clamping plate assembly to rotate on the mounting bracket 1. The monocrystalline silicon solar cell 2 to be tested is mounted on the three-sided clamping plate assembly, thereby enabling the monocrystalline silicon solar cell 2 to be tested to be flipped and the deflection angle of the monocrystalline silicon solar cell 2 to be tested to be changed.
[0020] The three-sided clamping plate assembly includes three side frames 3, which are connected in sequence by a connecting frame. The bottom of the side frame 3 is provided with a base plate 6 to support the monocrystalline silicon solar cell 2 to be tested. The side frame 3 is provided with a lifting sliding hole 4, and the side frame 3 is provided with an electric clamping plate 5 that slides through the lifting sliding hole 4 and abuts against the monocrystalline silicon solar cell 2 to be tested. Thus, the electric clamping plate 5 slides on the side frame 3 through the lifting sliding hole 4, and together with the base plate 6 at the bottom of the side frame 3 and the electric clamping plate 5, the monocrystalline silicon solar cell 2 to be tested is clamped and fixed from top to bottom. This facilitates the stable rotation of the monocrystalline silicon solar cell 2 to be tested during the flipping process.
[0021] Multiple side tubes 14 are symmetrically arranged on both sides of the three-sided clamping plate assembly, and telescopic bodies 15 slide inside the side tubes 14. A sliding cavity 24 is opened inside the side tubes 14, and the telescopic bodies 15 slide coaxially in the sliding cavity 24 through the sliding groove 22 and the slider 23. Therefore, the side tubes 14 are also deflected together during the rotation of the three-sided clamping plate assembly.
[0022] The telescopic body 15 has an inner cavity 16, and the side wall of the inner cavity 16 has a connecting hole 26. The side wall of the side cylinder 14 is provided with a liquid passage assembly 25 that communicates with the telescopic body 15. The liquid passage assembly 25 includes a first through hole 251, a second through hole 252, a third through hole 253, and a fourth through hole 254 arranged in sequence. The diameters of the first through hole 251, the second through hole 252, the third through hole 253, and the fourth through hole 254 increase sequentially. The diameter of the connecting hole 26 is larger than that of the fourth through hole 254. The first through hole 251, the second through hole 252, and the third through hole 253 are all connected to the liquid storage tank 10 through a connecting hose 11. Therefore, the fluid in the liquid storage tank 10 can be connected to the inner cavity 16 through the connecting hose 11, with one of them connected to the first through hole 251, the second through hole 252, the third through hole 253, or the fourth through hole 254. This enables the inner cavity 16 of the telescopic body 15 to be filled with liquid, thereby achieving fluid circulation.
[0023] The three-sided clamping plate assembly is equipped with a receiving bracket 13, on which a liquid storage tank 10 is placed below the monocrystalline silicon solar cell 2 to be tested. The liquid storage tank 10 is connected to the side cylinder 14 through a connecting hose 11. The liquid storage tank 10 is equipped with a pump body that introduces water into the connecting hose 11. It should be noted that the aging of monocrystalline silicon solar cells is usually caused by wind, sun and rain, or the direct action of hot and cold temperatures on the monocrystalline silicon solar cell 2 to be tested. Therefore, this device simulates the impact of rain and the action of hot and cold temperatures on the monocrystalline silicon solar cell 2 to be tested, thereby accelerating the aging rate of the monocrystalline silicon solar cell 2 to be tested.
[0024] The monocrystalline silicon solar cell 2 under test has positive and negative electrodes 7. The current and voltage testing device 9 is connected to the positive and negative electrodes 7 through the connecting cable 8. Therefore, after a long period of water washing over the monocrystalline silicon solar cell 2 under test, the current generated on the monocrystalline silicon solar cell 2 under test flows through the positive and negative electrodes 7 and the connecting cable 8 to the current and voltage testing device 9. Thus, the current state in the current and voltage testing device 9 can be observed over time, and the corresponding current generation state can be detected according to the aging degree of the monocrystalline silicon solar cell 2 under test.
[0025] The side cylinder 14 is equipped with a deflection switching mechanism for adjusting the fluid flow rate. The deflection switching mechanism includes a rotating disk 29, which rotates coaxially at the end of the side cylinder 14 via a rotating shaft 30. Therefore, the drive motor 12 drives the side cylinder 14 on the three-sided clamping plate assembly and the monocrystalline silicon solar cell 2 to be tested to rotate together. The flow state of the water is then adjusted according to the deflection angle of the monocrystalline silicon solar cell 2 to be tested, thereby detecting whether the impact of different fluid flow rates will affect the aging degree of the monocrystalline silicon solar cell 2 to be tested.
[0026] The electromagnetic generator assembly 38 is arc-shaped and includes a first electromagnetic generator 381, a second electromagnetic generator 382, a third electromagnetic generator 383, and a fourth electromagnetic generator 384, which are connected end-to-end. A lever 39 is used to trigger the opening of the electromagnetic generator assembly 38 and is coaxially fixed to the end of the side cylinder 14. The side wall of the rotating disk 29 is provided with a lever 39 that abuts against the electromagnetic generator assembly 38 for triggering. Therefore, the side cylinder 14 on the three-sided clamping plate assembly and the monocrystalline silicon solar cell 2 to be tested rotate together. A counterweight 31 is provided on the disk 29. Under the action of the counterweight 31, the rotating disk 29 changes continuously at the end of the side cylinder 14 with the change of the deflection angle via the rotating shaft 30. However, under the action of gravity, the counterweight 31 always keeps the rotating disk 29 in a vertical state. Therefore, during the rotation of the rotating disk 29, the lever 39 rotates together, and can then come into contact with the first electromagnetic generator 381, the second electromagnetic generator 382, the third electromagnetic generator 383, and the fourth electromagnetic generator 384, thereby driving the activation of the first electromagnetic generator 381, the second electromagnetic generator 382, the third electromagnetic generator 383, or the fourth electromagnetic generator 384 at the corresponding position.
[0027] The first electromagnetic generator 381, the second electromagnetic generator 382, the third electromagnetic generator 383, or the fourth electromagnetic generator 384, once activated, can generate the corresponding magnetic field.
[0028] An arc-shaped baffle 28, which blocks the liquid passage assembly 25, slides on the inner wall of the sliding cavity 24. One end of the arc-shaped baffle 28 is fixed to the end of the telescopic body 15, and the other end of the arc-shaped baffle 28 passes through the side cylinder 14. An end plate 27 is fixed to the other end of the arc-shaped baffle 28. Therefore, the position of the telescopic body 15 in the sliding cavity 24 can be changed by changing the position of the arc-shaped baffle 28, that is, the connecting hole 26 can be connected to one of the first through hole 251, the second through hole 252, the third through hole 253, or the fourth through hole 254. Since the first through hole 251, the second through hole 252, the third through hole 253, or the fourth through hole 254 are connected, the connecting hole 26 can be connected to one of the following: the first through hole 251, the second through hole 252, the third through hole 253, or the fourth through hole 254. The diameters of the second through hole 252, the third through hole 253, and the fourth through hole 254 increase sequentially. Compared to the connection between the connecting hole 26 and the first through hole 251, the amount of fluid entering the inner cavity 16 is less than that of the connection between the connecting hole 26 and the fourth through hole 254. Therefore, by adjusting the position of the telescopic body 15 in the sliding cavity 24, the flow rate of water sprayed from the telescopic body 15 can be controlled, thereby changing the flow rate of water impacting the surface of the monocrystalline silicon solar cell 2 under test, and thus simulating the impact of rainwater on the aging rate of the monocrystalline silicon solar cell 2 under test.
[0029] The end plate 27 is provided with a first insertion rod 32, a second insertion rod 33, a third insertion rod 34, and a fourth insertion rod 35. The lengths of the first insertion rod 32, the second insertion rod 33, the third insertion rod 34, and the fourth insertion rod 35 decrease sequentially. The first electromagnetic generator 381, the second electromagnetic generator 382, the third electromagnetic generator 383, and the fourth electromagnetic generator 384 are all provided with insertion holes 37 that correspond one-to-one with the positions of the first insertion rod 32, the second insertion rod 33, the third insertion rod 34, and the fourth insertion rod 35. The first insertion rod 32, the second insertion rod 33, the third insertion rod 34, and the fourth insertion rod 35 pass through the end of the side tube 14. The first insertion rod 32, the second insertion rod 33, the third insertion rod 34, and the fourth insertion rod 35 are all provided with iron blocks 36 on the side facing the electromagnetic generator assembly 38. During the rotation of the three-sided clamp assembly, the greater the rotation amplitude, the more the paddle 39 swings towards the first electromagnetic generator 381.
[0030] It should be noted that the generated magnetic field attracts the iron block 36, which can drive the first insertion rod 32, the second insertion rod 33, the third insertion rod 34, or the fourth insertion rod 35 at the corresponding position to be inserted into the insertion hole 37 on the electromagnetic generator assembly 38, as shown in the reference. Figure 4 The larger the deflection angle, the closer the end plate 27 is to the electromagnetic generator assembly 38. Therefore, the end plate 27, along with the arc-shaped baffle 28, extends further into the side cylinder 14. This results in a larger deflection angle and a smaller amount of water being sprayed from the telescopic body 15. The arc-shaped baffle 28 and the telescopic body 15 will block the other three through holes: the first through hole 251, the second through hole 252, the third through hole 253, or the fourth through hole 254.
[0031] A return spring 40 is sleeved on the outer wall of the first insertion rod 32, and the two ends of the return spring 40 are fixed to the electromagnetic generator assembly 38 and the end plate 27 respectively. It should be noted that since the insertion hole 37 is located at the ends of the first electromagnetic generator 381, the second electromagnetic generator 382, the third electromagnetic generator 383 and the fourth electromagnetic generator 384, four states can be achieved during the rotation of the paddle 39, that is, the corresponding second insertion rod 33, the third insertion rod 34 and the fourth insertion rod 35 are inserted into the electromagnetic generator assembly 38. When it is necessary to change the position of the arc-shaped baffle 28, the return spring 40 can be used to change the four positions of the arc-shaped baffle 28 in the side tube 14.
[0032] The telescopic body 15 is equipped with an electrically controlled Peltier module 21 for regulating fluid temperature. The telescopic body 15 also has a connecting cavity 17 that communicates with the inner cavity 16. The telescopic body 15 also has an annular cavity 20 that is coaxially arranged with the connecting cavity 17, and the electrically controlled Peltier module 21 is installed in the annular cavity 20. The electrically controlled Peltier module 21 is existing technology and is used to heat or reduce the flow of water in the connecting cavity 17, thereby simulating the effect of different temperatures on the monocrystalline silicon solar cell 2 under test. It will not be elaborated on here.
[0033] The telescopic body 15 has an installation cavity 18 at its end that communicates with the connecting cavity 17. An end water spray head 19 is installed in the installation cavity 18. The end water spray head 19 includes an installation head 191, and a first water spray hole 192 is opened on the installation head 191. Multiple second water spray holes 193 are symmetrically opened on both sides of the first water spray hole 192 on the installation head 191. The second water spray holes 193 are inclined. The plane where the first water spray hole 192 and the second water spray hole 193 are located is parallel to the upper surface of the monocrystalline silicon solar cell 2 to be tested. Therefore, the water sprayed from the end water spray head 19 is sprayed from the diverging first water spray hole 192 and multiple second water spray holes 193, which can increase the effect of water impact on the area of the monocrystalline silicon solar cell 2 to be tested. The water that washes over the monocrystalline silicon solar cell 2 to be tested flows into the storage tank 10, thereby realizing the circulation of water.
[0034] The working principle of this invention is as follows: First, the drive motor 12 needs to be turned on to enable the rotation of the three-sided clamping plate assembly on the mounting bracket 1. The monocrystalline silicon solar cell 2 to be tested is mounted on the three-sided clamping plate assembly, thereby enabling the monocrystalline silicon solar cell 2 to be tested to be flipped and the deflection angle of the monocrystalline silicon solar cell 2 to be tested to be changed. Then, the pump body in the liquid storage tank 10, which is equipped with a pump body to introduce water into the connecting hose 11, is turned on. The aging of monocrystalline silicon solar cells is usually caused by exposure to wind, sun, rain, or the direct effects of hot and cold temperatures on the monocrystalline silicon solar cell under test. This device simulates the impact of rain and the effects of hot and cold temperatures on the monocrystalline silicon solar cell under test, thereby accelerating the aging rate of the monocrystalline silicon solar cell under test. In the simulation of rainwater erosion, since the diameters of the first through hole 251, the second through hole 252, the third through hole 253, and the fourth through hole 254 increase sequentially, the amount of fluid entering the inner cavity 16 is less than that of the connecting hole 26 connected to the first through hole 251 compared to the connection between the connecting hole 26 and the fourth through hole 254. Therefore, by adjusting the position of the telescopic body 15 in the sliding cavity 24, the flow rate of water sprayed from the telescopic body 15 can be controlled, thereby changing the flow rate of water impacting the surface of the monocrystalline silicon solar cell 2 under test, and thus simulating the impact of rainwater on the aging rate of the monocrystalline silicon solar cell 2 under test.
[0035] For water temperature control, the telescopic body 15 is equipped with an electrically controlled Peltier module 21 for regulating fluid temperature. The telescopic body 15 also has a connecting cavity 17 that communicates with the inner cavity 16. The telescopic body 15 also has an annular cavity 20 that is coaxially arranged with the connecting cavity 17, and the electrically controlled Peltier module 21 is installed in the annular cavity 20. The electrically controlled Peltier module 21 is used to heat or reduce the flow of water in the connecting cavity 17, thereby simulating the effect of different temperatures on the monocrystalline silicon solar cell 2 under test.
[0036] After being washed by water for a long time, the current generated on the monocrystalline silicon solar cell 2 under test flows through the positive and negative electrodes 7 and the connecting cable 8 to the current and voltage testing device 9. Therefore, the current state in the current and voltage testing device 9 can be observed over time, and the corresponding current generation state can be detected according to the aging degree of the monocrystalline silicon solar cell 2 under test.
[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A monocrystalline silicon solar cell energy storage aging test device, comprising a mounting bracket (1), a current and voltage testing device (9), and a monocrystalline silicon solar cell (2) to be tested, characterized in that, The mounting bracket (1) is provided with a three-sided clamping plate assembly, and the mounting bracket (1) is provided with a drive motor (12) for driving the three-sided clamping plate assembly to rotate. Multiple side cylinders (14) are provided on both sides of the three-sided clamping plate assembly, and telescopic bodies (15) slide inside the side cylinders (14). The three-sided clamping plate assembly is provided with a receiving bracket (13), and a liquid storage tank (10) located below the monocrystalline silicon solar cell (2) to be tested is placed on the receiving bracket (13). The liquid storage tank (10) is connected to the side cylinders (14) through a connecting hose (11). A pump body is provided inside the liquid storage tank (10) to introduce water into the connecting hose (11). The side wall of the side cylinder (14) is provided with a liquid passage hole assembly (25) that communicates with the telescopic body (15). The side cylinder (14) is provided with a deflection switching mechanism for adjusting the fluid flow rate. The telescopic body (15) is provided with an electronically controlled Peltier module (21) for adjusting the fluid temperature. The single crystal silicon cell (2) to be tested has positive and negative electrodes (7). The current and voltage testing device (9) is connected to the positive and negative electrodes (7) through a connecting cable (8).
2. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 1, characterized in that, The three-sided clamping plate assembly includes three side frames (3), and the three side frames (3) are connected in sequence by a connecting frame. The bottom of the side frame (3) is provided with a support plate (6) to support the monocrystalline silicon solar cell (2) to be tested. The side frame (3) is provided with a lifting sliding hole (4), and the side frame (3) is provided with an electric clamping plate (5) that slides through the lifting sliding hole (4) and abuts against the monocrystalline silicon solar cell (2) to be tested.
3. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 1, characterized in that, A sliding cavity (24) is provided inside the side tube (14), and the telescopic body (15) slides coaxially in the sliding cavity (24) through the sliding groove (22) and the slider (23). An inner cavity (16) is provided inside the telescopic body (15), and a connecting hole (26) is provided on the side wall of the inner cavity (16). The liquid passage assembly (25) includes a first through hole (251), a second through hole (252), a third through hole (253) and a fourth through hole (254) arranged in sequence. The diameters of the first through hole (251), the second through hole (252), the third through hole (253) and the fourth through hole (254) increase in sequence. The diameter of the connecting hole (26) is larger than that of the fourth through hole (254). The first through hole (251), the second through hole (252) and the third through hole (253) are all connected to the liquid storage cylinder (10) through the connecting hose (11).
4. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 3, characterized in that, The telescopic body (15) is also provided with a connecting cavity (17) that communicates with the inner cavity (16). The telescopic body (15) is also provided with an annular cavity (20) that is coaxially arranged with the connecting cavity (17). The electric control Peltier module (21) is installed in the annular cavity (20). The end of the telescopic body (15) is provided with an installation cavity (18) that communicates with the connecting cavity (17). The end spray nozzle (19) is installed in the installation cavity (18).
5. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 4, characterized in that, The end spray head (19) includes a mounting head (191), and a first spray hole (192) is provided on the mounting head (191). Multiple second spray holes (193) are symmetrically provided on both sides of the first spray hole (192) on the mounting head (191), and the second spray holes (193) are inclined. The plane where the first spray hole (192) and the second spray hole (193) are located is parallel to the upper surface of the monocrystalline silicon solar cell (2) to be tested.
6. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 3, characterized in that, The inner wall of the sliding cavity (24) has an arc-shaped baffle (28) that blocks the liquid passage assembly (25). One end of the arc-shaped baffle (28) is fixed to the end of the telescopic body (15), and the other end of the arc-shaped baffle (28) passes through the side cylinder (14). The other end of the arc-shaped baffle (28) is fixed with an end plate (27).
7. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 6, characterized in that, The deflection switching mechanism includes: A rotating disk (29) rotates coaxially at the end of the side cylinder (14) via a rotating shaft (30), and a counterweight (31) is provided on the rotating disk (29). The electromagnetic generator assembly (38) is arc-shaped and coaxially fixed at the end of the side cylinder (14). The side wall of the rotating disk (29) is provided with a paddle (39) that abuts against the electromagnetic generator assembly (38) for triggering.
8. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 7, characterized in that, The electromagnetic generator assembly (38) includes a first electromagnetic generator (381), a second electromagnetic generator (382), a third electromagnetic generator (383), and a fourth electromagnetic generator (384), with the first electromagnetic generator (381), the second electromagnetic generator (382), the third electromagnetic generator (383), and the fourth electromagnetic generator (384) connected end to end. A lever (39) is used to trigger the opening of the electromagnetic generator assembly (38).
9. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 8, characterized in that, The end plate (27) is provided with a first insert (32), a second insert (33), a third insert (34) and a fourth insert (35). The lengths of the first insert (32), the second insert (33), the third insert (34) and the fourth insert (35) decrease sequentially. The first electromagnetic generator (381), the second electromagnetic generator (382), the third electromagnetic generator (383) and the fourth electromagnetic generator (384) are all provided with insertion holes (37) that correspond one-to-one with the positions of the first insert (32), the second insert (33), the third insert (34) and the fourth insert (35). The first insert (32), the second insert (33), the third insert (34) and the fourth insert (35) penetrate through the end of the side tube (14). The first insert (32), the second insert (33), the third insert (34) and the fourth insert (35) are all provided with iron blocks (36) on the side facing the electromagnetic generator assembly (38).
10. The monocrystalline silicon solar cell energy storage aging test equipment according to claim 9, characterized in that, The outer wall of the first insertion rod (32) is fitted with a reset spring (40), and the two ends of the reset spring (40) are fixed to the electromagnetic generator assembly (38) and the end plate (27) respectively.