Detection light source of photovoltaic cell and detection method thereof
By designing a photovoltaic cell detection light source including a uniform light plate, a condenser lens, a microstructure membrane and a light blocking structure, the problem of light source light directly illuminating the camera is solved, the accuracy and stability of photovoltaic cell detection is achieved, and the long-term operation stability of the equipment is ensured through the heat dissipation design.
Patent Information
- Application Number
- CN202411705727.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-02-28
AI Technical Summary
In the existing photovoltaic cell detection device, the light from the light source is directly illuminated on the visual camera, causing the detection effect to be disturbed, and it is impossible to ensure that each photovoltaic cell can be accurately detected. At the same time, when the equipment is inspecting the photovoltaic cell, it is impossible to perform adaptive and stable transport operations, and the light source structure cannot obtain continuous and stable and efficient internal heat dissipation.
A detection light source for photovoltaic cell cells is designed, including a light source detection rack, a uniform light plate, a condenser lens, a microstructure membrane and a light blocking structure. Through the cooperation of these components, the width of the light source is reduced, the light is focused to adapt to more sizes of photovoltaic cell cells, and the window glass and position avoid light directly illuminating the visual camera. At the same time, the positioning and conveying operation is adopted using the design of the conveyor rack and conveyor belt to ensure the stable delivery of the photovoltaic cell cells.
By reducing the width of the light source and focusing light, the accuracy and stability of photovoltaic cell detection is improved, the problem of light source illuminating the camera directly is avoided, the detection effect is enhanced, and the stability of the equipment during long-term operation is ensured through the heat dissipation design.
Smart Images
Figure CN119534468A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of photovoltaic cell detection, and in particular to a detection light source and a detection method for photovoltaic cells. Background Art
[0002] Photovoltaic cells are a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Photovoltaic cells can be used as curtain walls, roofs, walls and other locations on the surface of buildings to provide sustainable clean energy for buildings. In the field of transportation and municipal administration, photovoltaic cells can also be used to power municipal facilities such as traffic lights and street lights. The quality of photovoltaic cells will greatly affect the operation of these facilities, so after the production of photovoltaic cells, the quality of photovoltaic cells needs to be checked.
[0003] Due to the rapid development of visual inspection technology in recent years, many industrial fields have begun to use machine vision for product quality inspection. Visual inspection can also be used for the inspection of photovoltaic cells. During inspection, the photovoltaic cell is directly passed through the light source and the inspection camera. When the light source is irradiated on the photovoltaic cell, the inspection camera can detect the quality of the photovoltaic cell and transmit the data to the display. The existing inspection device includes a laser component, a colorimetric component and a reflector. The reflector is tilted and arranged directly above the photovoltaic cell. The light beam emitted by the laser component and the light beam emitted by the colorimetric component are both reflected by the reflector and act on the photovoltaic cell. The inspection camera arranged on the reflector collects data and then performs data transmission and data analysis.
[0004] However, when actually using it to inspect photovoltaic cells, due to the limitations of its own structure, when the photovoltaic cell passes over the light source, the light from the light source directly shines on the visual camera, causing the brightness of the image captured by the camera to be too high, which greatly interferes with the detection effect and cannot be clearly captured by the camera lens, and cannot guarantee that each photovoltaic cell can be inspected more accurately. At the same time, when the equipment is inspecting photovoltaic cells, it is unable to perform a more adapted and stable conveying operation, and when the equipment is running, its light source structure cannot obtain continuous, stable and efficient internal heat dissipation, so it needs to be improved. Summary of the invention
[0005] In order to prevent the light from the light source from directly shining on the visual camera and affecting the detection effect, the present application provides a detection light source for photovoltaic cells and a detection method thereof.
[0006] The photovoltaic cell detection light source and detection method provided in this application adopt the following technical solutions: On the one hand, the detection light source of the photovoltaic cell comprises a light source detection frame, the bottom end of the light source detection frame is fixedly connected to the equipment base frame, the two sides of the light source detection frame are movably connected with shading side plates, the inner bottom end of the light source detection frame is provided with a light homogenizing plate, the inner center of the light source detection frame is provided with a focusing lens, the top of the inner wall of the light source detection frame is provided with a microstructure membrane, the top of the light source detection frame is fixedly connected to a light blocking structure, the surface of the light blocking structure is provided with window glass, one side of the bottom end of the light source detection frame is fixedly connected to a first mounting seat, the other side of the bottom end of the light source detection frame is fixedly connected to a second mounting seat, the back side of the light source detection frame is provided with a first conveying frame through the first mounting seat, and the front side of the light source detection frame is fixedly connected to the second conveying frame through the second mounting seat.
[0007] By adopting the above technical solution, a row of LEDs is arranged on the surface of the light source board. The light emitted by the LED is irradiated onto the focusing lens after passing through the light homogenizing plate, and then irradiated out through the microstructured membrane and the window glass on the light-blocking structure after being condensed. The focusing lens can reduce the width of the detection light source. The microstructured membrane is used to deflect the focused light to the left and right sides. The light deflected to the right is blocked by the window glass, and the light on the left is irradiated onto the photovoltaic cell through the window glass on the surface of the light-blocking structure. The window glass light-blocking structure is provided with an avoidance structure to prevent the light irradiated to the left from being blocked.
[0008] Optionally, a first conveying groove is provided inside the first conveying frame, and a second conveying groove is provided inside the second conveying frame.
[0009] Optionally, conveyor belts are disposed inside the first conveying trough and the second conveying trough, and the two groups of conveyor belts are adapted to each other.
[0010] By adopting the above technical scheme, the first conveyor frame and the second conveyor frame are fixedly installed at the first mounting seat and the second mounting seat on both sides of the light source detection frame, respectively, and then the first conveyor frame and the second conveyor frame surface The two groups of conveyor belts inside the first conveyor trough and the second conveyor trough cooperate to perform the positioning and conveying operation of the photovoltaic cell that needs to be detected by the light source. In actual use, due to the small size of the photovoltaic cell, and the distance between the two conveyor belts is limited by the width of the light source, the photovoltaic cell with a smaller size is very easy to fall from the gap. Therefore, this application reduces the distance between the two conveyor belts by reducing the width of the light source to accommodate photovoltaic cells of more sizes. The closer the distance between the two groups of conveyor belts, the more stable the photovoltaic cell is during the movement process, so focusing the light helps to improve the stability of the photovoltaic cell movement process during the production process and ensure production quality.
[0011] Optionally, a guide bevel groove is provided at a corner of the second conveying frame, and the guide bevel groove is adapted to fit between the window glass and the first mounting seat.
[0012] Optionally, an L-shaped cover plate is provided on the front of the equipment base frame, a control component is provided inside the second conveying frame, and a light source board is provided inside the control component.
[0013] Optionally, overhead bars are provided on both sides of the surface of the equipment chassis, and light guide grooves are provided between the overhead bars.
[0014] Optionally, a back panel is movably connected to the back of the equipment chassis, a connecting wire is provided at one end of the back panel, and a connecting plug is provided at one end of the connecting wire.
[0015] Optionally, fan seats are evenly arranged at the bottom of the equipment chassis, a heat dissipation fan is arranged on the inner wall of the fan seat, an overhead footrest is arranged at the bottom end of the heat dissipation fan, and a heat dissipation plate is arranged at the inner bottom end of the equipment chassis.
[0016] Optionally, a wire rack is provided on the inner back side of the equipment base frame, a wire rack hole is opened at one end of the wire rack, the surface centers of the first conveying frame and the second conveying frame are fixedly connected to the limiting frame, and the inner top walls of the two groups of the limiting frames are provided with limiting pressure rollers.
[0017] By adopting the above technical solution, the first conveyor rack and the second conveyor rack can perform limited conveying operations of the photovoltaic cells on the two sets of conveyor belts through the limit frames in the center of their respective surfaces and the limit pressure rollers on the inner top wall, thereby ensuring the stability of the photovoltaic cells during conveying and detection.
[0018] On the other hand, the detection method of photovoltaic cells includes: S1. Connect the power through the connecting plug to make the LED light up. The light emitted by the LED is irradiated onto the focusing lens after passing through the light homogenizing plate. After being condensed, it is irradiated out through the microstructure membrane and the window glass on the light-blocking structure. S2. Adjust the position of the light source detection frame to allow the light to pass through the gap between the two conveyor belts; S3, after the detection device detects the light source, it sends a first signal to the controller, and after receiving the first signal, the controller controls the two conveyor belts to start at the same time, and the two conveyor belts run at the same speed; S4. During the inspection of photovoltaic cells, if a broken photovoltaic cell or foreign matter falls from the gap between the two conveyor belts, it will slide along the inclined window glass surface. There is no need to suspend the inspection work during this process.
[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. In actual use, the staff first installs the light source detection frame and the equipment chassis as a whole at the bottom of the detection production line, extends the light blocking structure and window glass on the surface of the light source detection frame to the bottom center of the photovoltaic cell detection and conveying structure, and then connects the connection wire and the connection plug at one end of the backplane to the power supply, cooperates with the wiring rack and the wiring hole to operate the power supply at the light source board on the surface of the internal control component of the equipment chassis. A row of LEDs are set on the surface of the light source board. The light emitted by the LED passes through the light-homogenizing plate and then irradiates the focusing lens. After being concentrated, it passes through the microstructure membrane and the window on the light blocking structure. The light is irradiated out through the window glass, and the focusing lens can reduce the width of the detection light source. When the size of the battery cell is small and the distance between the conveyor belts needs to be reduced, the smaller width of the light source can adapt to more sizes of battery cells. The microstructured membrane is used to deflect the focused light to the left and right sides. The light deflected to the right is blocked by the window glass, and the light on the left is irradiated to the photovoltaic cell through the window glass on the surface of the light-blocking structure. The window glass light-blocking structure is provided with an avoidance structure to avoid the light irradiated to the left from being blocked, which helps to improve the detection effect of the photovoltaic cell while ensuring the quality of the photovoltaic cell, reflecting the practicality of the equipment design; 2. The staff can fix and install the first conveyor frame and the second conveyor frame respectively through the first mounting seat and the second mounting seat on both sides of the light source detection frame, and then cooperate with the two sets of conveyor belts inside the first conveyor slot on the surface of the first conveyor frame and the second conveyor slot to perform the positioning and conveying operation of the photovoltaic cells that need to be detected by the light source. At this time, the first conveyor frame and the second conveyor frame can perform the limited conveying operation of the photovoltaic cells on the two sets of conveyor belts through the limit frames in the center of their respective surfaces and the limit rollers on the inner top wall to ensure the stability of the photovoltaic cells during transportation and detection. The window glass of the equipment during the light source detection process is in an inclined setting. If the transported photovoltaic cells have quality problems and fall on the light source, at this time, in conjunction with the design of the corner guide inclined slot of the second conveyor frame, they will slide along the inclined window glass to avoid affecting the subsequent product detection. At the same time, the closer the distance between the two sets of conveyor belts, the more stable the photovoltaic cells are during the movement. Therefore, focusing the light helps to improve the stability of the photovoltaic cell movement process during the production process and ensure production quality. 3. At the same time, the cooling fan inside the fan seat at the bottom of the equipment chassis is started daily, and then the cooling plate designed inside the equipment chassis is coordinated with the overhead feet to provide heat dissipation protection for the control components and light source panels inside the equipment chassis during continuous operation, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the detection light source of the photovoltaic cell according to the embodiment of the present application.
[0021] Figure 2It is a structural schematic diagram of the light source detection frame and the equipment base frame of the embodiment of the present application.
[0022] Figure 3 It is a structural schematic diagram of the light source detection frame of an embodiment of the present application.
[0023] Figure 4 It is a structural schematic diagram of the equipment chassis of the embodiment of the present application.
[0024] Figure 5 It is a schematic diagram of the structure of the heat dissipation fan of an embodiment of the present application.
[0025] Figure 6 yes Figure 1 A is an enlarged view of the middle image.
[0026] Figure 7 yes Figure 1 Enlarged view of B.
[0027] Figure 8 It is a cross-sectional view of the detection light source of the photovoltaic cell according to the embodiment of the present application.
[0028] Explanation of the reference numerals: 1. light source detection frame; 2. equipment base frame; 3. shading side panel; 4. homogenizing plate; 5. focusing lens; 6. microstructure membrane; 7. light blocking structure; 8. window glass; 9. first mounting seat; 10. second mounting seat; 11. first conveying frame; 12. second conveying frame; 13. first conveying trough; 14. second conveying trough; 15. conveyor belt; 16. guide chute; 17. L-shaped cover; 18. control assembly; 19. light source board; 20. overhead bar; 21. light guide trough; 22. back panel; 23. connecting wire; 24. connecting plug; 25. fan seat; 26. heat dissipation fan; 27. overhead foot seat; 28. heat dissipation plate; 29. cable rack; 30. cable hole. DETAILED DESCRIPTION
[0029] The following is combined with Figure 1-8 This application is described in further detail.
[0030] The present application embodiment discloses a detection light source for a photovoltaic cell. Figure 1, the detection light source of the photovoltaic cell comprises a light source detection frame 1, and the bottom end of the light source detection frame 1 is fixedly connected to the equipment base frame 2. Two conveyor belts 15 are respectively arranged on both sides of the light source detection frame 1, and the light source detection frame 1 is installed in the gap between the two conveyor belts 15, and the photovoltaic cell is transported by the two conveyor belts 15. In actual use, since the size of the photovoltaic cell is small, and the distance between the two conveyor belts 15 is limited by the width of the light source, the photovoltaic cell with a smaller size can easily fall from the gap. Therefore, the present application reduces the distance between the two conveyor belts 15 by reducing the width of the light source to accommodate photovoltaic cells of more sizes. The closer the distance between the two sets of conveyor belts 15, the more stable the photovoltaic cell is during movement. Therefore, focusing the light helps to improve the stability of the movement process of the photovoltaic cell during the production process and ensure production quality.
[0031] Reference Figure 2 and Figure 3 , light shielding side plates 3 are movably connected on both sides of the light source detection frame 1, a light homogenizing plate 4 is arranged at the inner bottom end of the light source detection frame 1, a focusing lens 5 is arranged at the inner center of the light source detection frame 1, and a microstructured membrane 6 is arranged at the top of the inner wall of the light source detection frame 1. A light blocking structure 7 is fixedly connected to the top of the light source detection frame 1, and a window glass 8 is arranged on the surface of the light blocking structure 7. The light blocking structure 7 is a prior art, and the specific structure is not repeated.
[0032] Reference Figure 4 and Figure 8 An L-shaped cover plate 17 is provided on the front of the equipment chassis 2, a control component 18 is provided inside the second conveyor frame 12, a light source board 19 is provided inside the control component 18, overhead bars 20 are provided on both sides of the surface of the equipment chassis 2, light guide grooves 21 are provided between the overhead bars 20, a back panel 22 is movably connected to the back of the equipment chassis 2, a connecting line 23 is provided at one end of the back panel 22, a connecting plug 24 is provided at one end of the connecting line 23, and fan seats 25 are evenly provided at the bottom of the equipment chassis 2.
[0033] Reference Figure 5 A heat dissipation fan 26 is arranged on the inner wall of the fan seat 25, an overhead foot seat 27 is arranged at the bottom end of the heat dissipation fan 26, a heat dissipation plate 28 is arranged at the inner bottom end of the equipment base frame 2, a cable rack 29 is arranged on the inner back of the equipment base frame 2, and a cable hole 30 is opened at one end of the cable rack 29.
[0034] A row of LEDs is arranged on the surface of the light source board 19. The light emitted by the LEDs is irradiated onto the focusing lens 5 after passing through the light homogenizing plate 4, and then irradiated out through the microstructured membrane 6 and the window glass 8 on the light-blocking structure 7 after being condensed. The focusing lens 5 can reduce the width of the detection light source. When the size of the battery cell is small and the distance between the conveyor belts 15 needs to be reduced, the smaller width of the light source can accommodate battery cells of more sizes. The microstructured membrane 6 is used to deflect the focused light to the left and right sides. The light deflected to the right is blocked by the window glass 8, and the light on the left is irradiated onto the photovoltaic cell through the window glass 8 on the surface of the light-blocking structure 7. The window glass 8 light-blocking structure is provided with an avoidance structure to prevent the light irradiated to the left from being blocked.
[0035] Reference Figure 1 and Figure 6 A first mounting seat 9 is fixedly connected to one side of the bottom end of the light source detection frame 1, and a second mounting seat 10 is fixedly connected to the other side of the bottom end of the light source detection frame 1. A first conveying frame 11 is arranged on the back of the light source detection frame 1 through the first mounting seat 9, and a second conveying frame 12 is fixedly connected to the front of the light source detection frame 1 through the second mounting seat 10. A first conveying trough 13 is provided inside the first conveying frame 11, and a second conveying trough 14 is provided inside the second conveying frame 12. Two sets of conveyor belts 15 are respectively arranged inside the first conveying trough 13 and the second conveying trough 14.
[0036] Reference Figure 1 and Figure 7 The corner of the second conveyor frame 12 is provided with a guide inclined groove 16, which is adapted between the window glass 8 and the first mounting seat 9. The center of the surface of the first conveyor frame 11 and the second conveyor frame 12 are fixedly connected to the limit frame 31, and the inner top walls of the two sets of the limit frames 31 are provided with limit pressure rollers 32.
[0037] The first conveyor frame 11 and the second conveyor frame 12 are fixedly installed at the first mounting seat 9 and the second mounting seat 10 on both sides of the light source detection frame 1, respectively, and then the first conveyor frame 11 and the second conveyor frame 12 cooperate with the two sets of conveyor belts 15 inside the first conveyor groove 13 and the second conveyor groove 14 on the surface of the first conveyor frame 11 and the second conveyor frame 12 to perform the positioning and conveying operation of the photovoltaic cell required for light source detection. At this time, the first conveyor frame 11 and the second conveyor frame 12 can perform the limiting conveying operation of the photovoltaic cell on the two sets of conveyor belts 15 through the limiting frame 31 at the center of their respective surfaces and the limiting roller 32 on the inner top wall, so as to ensure the stability of the photovoltaic cell during transportation and detection.
[0038] During the inspection of the photovoltaic cells, if a broken photovoltaic cell or foreign matter falls from the gap between the two conveyor belts 15, it will slide along the surface of the inclined window glass 8, and there is no need to suspend the inspection work during this process.
[0039] The implementation principle of the detection light source for photovoltaic cells in the embodiment of the present application is as follows: when in use, the user first installs the light source detection frame 1 and the equipment base frame 2 as a whole at the bottom of the detection production line, extends the light blocking structure 7 and the window glass 8 on the surface of the light source detection frame 1 to the bottom center of the photovoltaic cell detection and conveying structure, and then connects the connecting wire 23 and the connecting plug 24 at one end of the back panel 22 to the power supply, cooperates with the wiring rack 29 and the wiring hole 30 to perform the power supply operation at the light source panel 19 on the surface of the internal control component 18 of the equipment base frame 2.
[0040] A row of LEDs is arranged on the surface of the light source board 19. The light emitted by the LEDs is irradiated onto the focusing lens 5 after passing through the light homogenizing plate 4, and then irradiated out through the microstructured membrane 6 and the window glass 8 on the light-blocking structure 7 after being condensed. The microstructured membrane 6 is used to deflect the focused light to the left and right sides. The light deflected to the right is blocked by the window glass 8, and the light on the left is irradiated onto the photovoltaic cell through the window glass 8 on the surface of the light-blocking structure 7. The light-blocking structure of the window glass 8 is provided with an avoidance structure, which can prevent the light irradiated to the left from being blocked, which helps to improve the detection effect of the photovoltaic cell while ensuring the quality of the photovoltaic cell.
[0041] In daily use, the staff can fix and install the first conveyor frame 11 and the second conveyor frame 12 through the first mounting seat 9 and the second mounting seat 10 on both sides of the light source detection frame 1, and then cooperate with the two sets of conveyor belts 15 inside the first conveyor groove 13 and the second conveyor groove 14 on the surface of the first conveyor frame 11 and the second conveyor frame 12 to perform the positioning and conveying operation of the photovoltaic cell that needs light source detection. The closer the distance between the two sets of conveyor belts 15, the more stable the photovoltaic cell is during the movement process. Therefore, focusing the light helps to improve the stability of the photovoltaic cell movement process during the production process and ensure production quality.
[0042] At the same time, the cooling fan 26 inside the fan seat 25 at the bottom of the equipment chassis 2 is started daily, and then the cooling plate 28 designed inside the equipment chassis 2 is coordinated with the overhead foot 27 to provide heat dissipation protection for the control components 18 and the light source board 19 inside the equipment chassis 2 during continuous operation. The present application also discloses a method for detecting a photovoltaic cell. The method for detecting a photovoltaic cell includes: S1. Connect the power through the connecting plug 24 to make the LED light up. The light emitted by the LED passes through the light homogenizing plate 4 and then irradiates the focusing lens 5. After being condensed, it irradiates out through the microstructure membrane 6 and the window glass 8 on the light blocking structure 7. S2, adjusting the position of the light source detection frame 1 so that the light passes through the gap between the two conveyor belts 15; S3, after the detection device detects the light source, it sends a first signal to the controller, and after receiving the first signal, the controller controls the two conveyor belts 15 to start at the same time, and the two conveyor belts 15 run at the same speed; S4. During the inspection of the photovoltaic cells, if a broken photovoltaic cell or foreign matter falls from the gap between the two conveyor belts 15, it will slide along the surface of the inclined window glass 8. There is no need to suspend the inspection work during this process.
[0043] 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. Photovoltaic cell detection light source, characterized by: The invention comprises a light source detection frame (1), characterized in that: the bottom end of the light source detection frame (1) is fixedly connected to an equipment bottom frame (2), both sides of the light source detection frame (1) are movably connected to light shielding side plates (3), the inner bottom end of the light source detection frame (1) is provided with a light homogenizing plate (4), the inner center of the light source detection frame (1) is provided with a focusing lens (5), the top end of the inner wall of the light source detection frame (1) is provided with a microstructure membrane (6), the top end of the light source detection frame (1) is fixedly connected to a light blocking structure (7), the surface of the light blocking structure (7) is provided with a window glass (8), one side of the bottom end of the light source detection frame (1) is fixedly connected to a first mounting seat (9), the other side of the bottom end of the light source detection frame (1) is fixedly connected to a second mounting seat (10), the back side of the light source detection frame (1) is provided with a first conveying frame (11) through the first mounting seat (9), and the front side of the light source detection frame (1) is fixedly connected to a second conveying frame (12) through the second mounting seat (10).
2. The photovoltaic cell detection light source according to claim 1, characterized in that: A first conveying groove (13) is provided inside the first conveying frame (11), and a second conveying groove (14) is provided inside the second conveying frame (12).
3. The photovoltaic cell detection light source according to claim 2, characterized in that: Conveyor belts (15) are disposed inside the first conveying trough (13) and the second conveying trough (14), and the two sets of conveyor belts (15) are adapted to each other.
4. The photovoltaic cell detection light source according to claim 1, characterized in that: A guide bevel groove (16) is provided at a corner of the second conveying frame (12), and the guide bevel groove (16) is adapted to fit between the window glass (8) and the first mounting seat (9).
5. The photovoltaic cell detection light source according to claim 1, characterized in that: An L-shaped cover plate (17) is arranged on the front of the equipment base frame (2), a control component (18) is arranged inside the second conveying frame (12), and a light source board (19) is arranged inside the control component (18).
6. The photovoltaic cell detection light source according to claim 1, characterized in that: Overhead bars (20) are provided on both sides of the surface of the equipment base frame (2), and light guide grooves (21) are provided between the overhead bars (20).
7. The photovoltaic cell detection light source according to claim 1, characterized in that: The back of the equipment chassis (2) is movably connected to a back plate (22), one end of the back plate (22) is provided with a connection line (23), and one end of the connection line (23) is provided with a connection plug (24).
8. The photovoltaic cell detection light source according to claim 1, characterized in that: The bottom of the equipment base frame (2) is evenly provided with fan seats (25), the inner wall of the fan seat (25) is provided with a heat dissipation fan (26), the bottom end of the heat dissipation fan (26) is provided with an overhead foot seat (27), and the inner bottom end of the equipment base frame (2) is provided with a heat dissipation plate (28).
9. The photovoltaic cell detection light source according to claim 1, characterized in that: A wire arrangement rack (29) is arranged on the inner back side of the equipment base frame (2), a wire arrangement hole (30) is opened at one end of the wire arrangement rack (29), the surfaces of the first conveying frame (11) and the second conveying frame (12) are fixedly connected to a limiting frame (31) at the center of the surface, and the inner top walls of the two sets of limiting frames (31) are provided with limiting pressure rollers (32).
10. The method for detecting a detection light source of a photovoltaic cell according to any one of claims 1 to 9, characterized in that: S1. Connect the power through the connecting plug to make the LED light up. The light emitted by the LED is irradiated onto the focusing lens after passing through the light homogenizing plate. After being condensed, it is irradiated out through the microstructure membrane and the window glass on the light-blocking structure. S2. Adjust the position of the light source detection frame to allow the light to pass through the gap between the two conveyor belts; S3, after the detection device detects the light source, it sends a first signal to the controller, and after receiving the first signal, the controller controls the two conveyor belts to start at the same time, and the two conveyor belts run at the same speed; S4. During the inspection of photovoltaic cells, if a broken photovoltaic cell or foreign matter falls from the gap between the two conveyor belts, it will slide along the inclined window glass surface. There is no need to suspend the inspection work during this process.