Photovoltaic module subfissure detection device

Abstract

The invention relates to the technical field of photovoltaic module subfissure detection, in particular to a photovoltaic module subfissure detection device. Comprising guide frames, connecting rods, corrugated pipes, a shading plate, a connecting frame I and the like, the connecting rods are symmetrically arranged on one guide frame, the corrugated pipes are symmetrically arranged on the other guide frame, the corrugated pipes are connected with the connecting rods, the shading plate is connected to the guide frame, and the connecting frame I is installed on the guide frame. According to the photovoltaic module subfissure detection device, through cooperation of the connecting rod, the corrugated pipe, the light shielding plate and the flexible light shielding film, a closed space with weak light can be formed between the photovoltaic module subfissure detection device and a photovoltaic panel, and then the photovoltaic module subfissure detection device can automatically move on the photovoltaic panel through the moving mechanism; through cooperation of the photosensitive sensor, the camera shooting processing assembly, the cover opening mechanism and the power connection mechanism, hidden crack detection can be automatically carried out on the photovoltaic panel in a closed space with weak light, hidden crack detection can also be carried out on the photovoltaic panel in the daytime, time and labor are saved, and the detection efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic module hidden crack detection, and in particular to a photovoltaic module hidden crack detection device. Background Art

[0002] As the core component of photovoltaic power generation system, the performance of photovoltaic modules directly affects the energy conversion efficiency and long-term reliability of the whole system. However, during the production, transportation, installation and service of photovoltaic modules, they often produce a kind of subtle internal damage - hidden cracks due to external factors. Hidden cracks will not only reduce the photoelectric conversion efficiency of the modules, but also may cause hot spot effect, accelerate power attenuation, and even cause module failure in severe cases. Therefore, efficient and accurate detection of hidden cracks has become a key link in ensuring the quality of photovoltaic products and the safe operation of the system.

[0003] Nowadays, when detecting hidden cracks in photovoltaic modules, the electroluminescence detection method is usually used. A direct current higher than the working voltage of the photovoltaic module is applied to the photovoltaic module through electroluminescence detection equipment or a special power supply to promote the recombination of electrons and holes inside the photovoltaic module, thereby releasing photons, which is the electroluminescence phenomenon. Then, the image of the module in the electroluminescent state is captured by a camera device, and the captured image is analyzed by professional software (normal areas will emit light evenly, while areas with hidden cracks, fragments or other defects will show dark areas, bright spots or irregular light emission patterns), so that the location and severity of the hidden cracks can be identified; however, although the electroluminescence detection method can effectively reveal the microscopic defects inside the module, its detection process usually needs to be carried out in a low-light or no-light environment (such as at night), and relies on manual handheld detection equipment to scan one by one, which is not only time-consuming and labor-intensive, but also limits the detection efficiency of large-scale photovoltaic power stations. Summary of the invention

[0004] In view of this, the present invention provides a photovoltaic module hidden crack detection device, which can solve the problem that when using the electroluminescence detection method to detect hidden cracks in photovoltaic modules, the detection process needs to be carried out in a low-light or no-light environment (such as at night), and relies on manual handheld detection equipment to scan one by one, which is not only time-consuming and labor-intensive, but also limits the detection efficiency of large-scale photovoltaic power stations.

[0005] The technical scheme of the present invention is: a photovoltaic module hidden crack detection device, including a guide frame, the number of the guide frames is two, and also includes a connecting rod, a corrugated tube, a shading plate, a connecting frame I, a movable frame, a spring, a flexible shading film, a photosensitive sensor, a camera processing component, an adjustment mechanism, a moving mechanism, a cover opening mechanism and a power connection mechanism, one of the guide frames is symmetrically provided with a connecting rod, the other guide frame is symmetrically provided with a corrugated tube, the corrugated tube is connected to the connecting rod, the shading plate is connected to the guide frame, the connecting frame I is installed on the guide frame, and the movable frame slides The movable frame is movably arranged between the connecting frame I, the two ends of the spring are respectively connected to the connecting frame I and the movable frame, the flexible shading film is connected to the movable frame, the shading plates are connected to the flexible shading film, the flexible shading film is used to block light, the photosensitive sensor is installed on the shading plate, the camera processing component is installed on the movable frame, the adjustment mechanism is used to adjust the distance between the two guide frames, the moving mechanism is used to drive the guide frame to move on the photovoltaic panel, the cover opening mechanism is used to uncover the cover on the junction box of the photovoltaic panel, and the power connection mechanism is used to energize the junction box of the photovoltaic panel.

[0006] Furthermore, the adjustment mechanism includes a servo motor and a screw rod. The servo motor is symmetrically arranged on the guide frame on which the bellows is installed. The output shaft of the servo motor is connected to the screw rod, which is located inside the bellows and is threadedly connected to the connecting rod.

[0007] Furthermore, the moving mechanism includes a reduction motor and a roller I. The guide frame is provided with the reduction motor, and the roller I is connected to the output shaft of the reduction motor.

[0008] Furthermore, the cover opening mechanism includes a connecting block, a sliding frame, an electric push rod I, an electric push rod II, a connecting plate, a push rod, an electric push rod III and a bearing plate, the connecting block is installed on one of the guide frames, the sliding frame is slidably arranged on the connecting block, the electric push rod I is installed on the connecting block, the telescopic rod of the electric push rod I is connected to the sliding frame, the electric push rod II is installed on the sliding frame, the connecting plate is connected to the telescopic rod of the electric push rod II, the push rods are installed at intervals on the connecting plate, the electric push rod III is installed on the connecting plate, and the bearing plate is connected to the telescopic rod of the electric push rod III.

[0009] Furthermore, the cover opening mechanism also includes a distance sensor and a control box. The distance sensor is installed on the connecting plate, and the control box is installed on one of the guide frames.

[0010] Furthermore, the power connection mechanism includes a power supply, an electric push rod IV, a contact head and an electric wire. The power supply is installed on the connecting block, the electric push rod IV is installed on the sliding frame, the contact head is arranged on the telescopic rod of the electric push rod IV, and the two ends of the electric wire are respectively connected to the power supply and the contact head.

[0011] Furthermore, it also includes a crossing mechanism, which includes a multi-section telescopic long rod, a connecting frame II and a roller II. The multi-section telescopic long rod is symmetrically arranged on the shading plate, the connecting frame II is connected to the end of the multi-section telescopic long rod, and the roller II is rotatably arranged on the connecting frame II.

[0012] Furthermore, it also includes a cleaning mechanism, which includes a fixed plate, a wiping block I and a wiping block II, wherein a fixed plate is symmetrically arranged on one of the shading plates, wiping block I is connected to the fixed plate, and wiping block II is connected to the connecting rod, and wiping block I and wiping block II are both used to wipe the surface of the photovoltaic panel.

[0013] The beneficial effects are as follows: 1. The present invention can form a closed space with weak light between the photovoltaic panel through the cooperation of the connecting rod, the bellows, the shading plate and the flexible shading film. After that, the photovoltaic component hidden crack detection device can be automatically moved on the photovoltaic panel through the moving mechanism, and can automatically perform hidden crack detection on the photovoltaic panel in the closed space with weak light through the cooperation of the photosensitive sensor, the camera processing component, the cover opening mechanism and the power connection mechanism, and can also perform hidden crack detection on the photovoltaic panel during the day, which not only saves time and effort, but also can improve the detection efficiency.

[0014] 2. The present invention provides a crossing mechanism so that the photovoltaic component hidden crack detection device can cross the gaps between photovoltaic panels when moving between photovoltaic panels, thereby facilitating the photovoltaic component hidden crack detection device to automatically move on the photovoltaic panels.

[0015] 3. By setting up a cleaning mechanism, the present invention can enable the photovoltaic module hidden crack detection device to simultaneously wipe the surface of the photovoltaic panel using wiping block I and wiping block II when moving on the photovoltaic panel, thereby cleaning the surface of the photovoltaic panel to prevent foreign matter on the surface from affecting the hidden crack detection of the photovoltaic panel, thereby improving the detection accuracy of the hidden crack detection of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional view of the flexible light-shielding film of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the adjusting mechanism and the moving mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention stabilized on the photovoltaic panel.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the guide frame, connecting block and control box of the present invention.

[0021] Figure 6It is a three-dimensional structural schematic diagram of the cover opening mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the power connection mechanism of the present invention.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the guide frame, distance sensor and power supply of the present invention.

[0024] Fig. 9 It is a three-dimensional structural schematic diagram of the spanning mechanism of the present invention.

[0025] Fig.10 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0026] Parts names and serial numbers in the figure: 1. Guide frame, 101. Photovoltaic panel, 102. Junction box, 103. Cover plate, 2. Connecting rod, 3. Bellows, 4. Shading plate, 5. Connecting frame I, 6. Movable frame, 7. Spring, 8. Flexible shading film, 9. Photosensitive sensor, 10. Camera processing component, 11. Servo motor, 12. Screw rod, 13. Reducer motor, 14. Roller I, 15. Connecting block, 16. Sliding Moving frame, 17. Electric push rod I, 18. Electric push rod II, 19. Connecting plate, 20. Push rod, 21. Electric push rod III, 22. Loading plate, 23. Distance sensor, 24. Control box, 25. Power supply, 26. Electric push rod IV, 27. Contact head, 28. Electric wire, 29. Multi-section telescopic long rod, 30. Connecting frame II, 31. Roller II, 32. Fixed plate, 33. Wiping block I, 34. Wiping block II. DETAILED DESCRIPTION

[0027] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Embodiment: A photovoltaic module hidden crack detection device, see Figure 1-Figure 8As shown, it includes a guide frame 1, the number of guide frames 1 is two, and the two guide frames 1 are distributed on the left and right; it also includes a connecting rod 2, a bellows 3, a shading plate 4, a connecting frame I5, a movable frame 6, a spring 7, a flexible shading film 8, a photosensitive sensor 9, a camera processing component 10, an adjustment mechanism, a moving mechanism, an opening mechanism and a power connection mechanism; the two connecting rods 2 are symmetrically arranged on the right side of the left guide frame 1; the two bellows 3 are symmetrically arranged on the left side of the right guide frame 1, the two bellows 3 are respectively connected to the two connecting rods 2, and the bellows 3 are made of shading material; the two shading plates 4 are respectively connected to the two guide frames 1 close to each other. On one side, the shading plate 4 is U-shaped, and the two shading plates 4 are in contact with each other; the connecting frame Ⅰ5 is installed on the top of the guide frame 1; the movable frame 6 is slidably arranged between the upper sides of the two connecting frames Ⅰ5, and the movable frame 6 is located in the middle between the two connecting frames Ⅰ5; the two ends of the spring 7 are respectively connected to the connecting frame Ⅰ5 and the movable frame 6; the upper end of the flexible shading film 8 is connected to the bottom of the movable frame 6, and the left and right sides of the lower end of the flexible shading film 8 are respectively connected to the shading plates 4 on the left and right sides, and the front and rear sides of the lower end of the flexible shading film 8 are in contact with the shading plate 4, and the flexible shading film 8 is used to block light; the photosensitive sensor 9 is installed on the shading plate 4, and the photosensitive sensor 9 is used to detect light The camera processing assembly 10 includes a camera and a data processing system. The data processing system is installed on the movable frame 6. The camera is installed at the bottom of the movable frame 6. The photosensitive sensor 9 and the camera are electrically connected to the data processing system. The camera is used to shoot the surface of the photovoltaic panel 101. The data processing system is used to compare the data detected by the photosensitive sensor 9. If the data is normal, there is no abnormality. If the data is abnormal, an alarm is issued. The data processing system is also used to detect the image taken by the camera, so as to detect hidden cracks in the photovoltaic panel 101. The adjustment mechanism is used to adjust the spacing between the two guide frames 1 so that Two guide frames 1 can be assembled on the photovoltaic panel 101, so that the photovoltaic component hidden crack detection device can be stabilized on the photovoltaic panel 101; the moving mechanism is used to drive the guide frame 1 to move on the photovoltaic panel 101, thereby driving the photovoltaic component hidden crack detection device to move on the photovoltaic panel 101; the cover opening mechanism is used to uncover the cover plate 103 on the junction box 102 of the photovoltaic panel 101; the power connection mechanism is used to energize the junction box 102 of the photovoltaic panel 101, so as to apply a direct current higher than its working voltage, thereby promoting the recombination of electrons and holes inside the photovoltaic panel 101, and then releasing photons, that is, electroluminescence.

[0029] See also Figure 3 and Figure 4 As shown, the adjustment mechanism includes a servo motor 11 and a screw 12; the two servo motors 11 are symmetrically arranged on the right side of the guide frame 1 on the right side; the screw 12 is connected to the output shaft of the servo motor 11, the screw 12 is located inside the bellows 3, and the screw 12 is threadedly connected to the connecting rod 2.

[0030] See also Figure 3 and Figure 4 As shown, the moving mechanism includes a reduction motor 13 and a roller Ⅰ14; the reduction motor 13 is arranged on the guide frame 1; and the roller Ⅰ14 is connected to the output shaft of the reduction motor 13.

[0031] See also Figure 5 , Figure 6 and Figure 8 As shown, the cover opening mechanism includes a connecting block 15, a sliding frame 16, an electric push rod I 17, an electric push rod II 18, a connecting plate 19, a push rod 20, an electric push rod III 21, a bearing plate 22, a distance sensor 23 and a control box 24; the connecting block 15 is installed at the bottom of the guide frame 1 on the right; the sliding frame 16 is slidably arranged on the connecting block 15; the electric push rod I 17 is installed on the connecting block 15, and the telescopic rod of the electric push rod I 17 is connected to the sliding frame 16, so that the electric push rod I 17 can drive the sliding frame 16 to slide on the connecting block 15; the electric push rod II 18 is installed on the sliding frame 16; the connecting plate 19 is connected to the telescopic rod of the electric push rod II 18; four Push rods 20, four push rods 20 are used to push into the junction box 102, so as to unlock the cover 103 from the junction box 102, so that the cover 103 falls off the junction box 102, and then the junction box 102 is opened; two electric push rods III 21 are installed on the connecting plate 19; the bearing plate 22 is connected between the telescopic rods of the two electric push rods III 21; two distance sensors 23 are symmetrically installed on the left side of the bottom of the connecting plate 19; the control box 24 is installed on the right side of the guide frame 1 on the right side, and the light sensor 9, the camera processing component 10, the distance sensor 23, the reduction motor 13, the electric push rod I 17, the electric push rod II 18 and the electric push rod III 21 are all electrically connected to the control box 24.

[0032] See also Figure 7 and Figure 8 As shown, the power connection mechanism includes a power supply 25, an electric push rod IV26, a contact head 27 and a wire 28; the power supply 25 is installed at the bottom of the connecting block 15, and the power supply 25 is electrically connected to the control box 24; the electric push rod IV26 is installed on the sliding frame 16, and the electric push rod IV26 is electrically connected to the control box 24; two contact heads 27 are symmetrically arranged on the telescopic rod of the electric push rod IV26, and the contact heads 27 are used to connect to the junction box 102; the two ends of the wire 28 are respectively connected to the power supply 25 and the contact head 27.

[0033] When in use, the photovoltaic module crack detection device is placed on the photovoltaic panel 101, and the two guide frames 1 are respectively placed on both sides of the photovoltaic panel 101, and then the servo motor 11 drives the screw rod 12 to rotate, so that the two guide frames 1 move toward each other, and the connecting rod 2 squeezes the corrugated tube 3 to compress, until the two guide frames 1 are assembled on both sides of the photovoltaic panel 101 (such as Figure 4As shown), a closed space is formed between the flexible shading film 8 and the photovoltaic panel 101 (the closed space uses the flexible shading film 8, the photovoltaic panel 101, the connecting rod 2, the bellows 3 and the shading plate 4 to block the external light, so that the closed space presents a weak light environment, so that the photovoltaic panel 101 can also be used for crack detection during the day), during which the two guide frames 1 will drive the two connecting frames I5 to move toward the side close to each other, so that the connecting frame I5 squeezes the spring 7, and the spring 7 is compressed. Under the action of the spring 7, the spring 7 will continue to press the movable frame 6, so that the movable frame 6 is always in the middle position between the two connecting frames I5;When the two guide frames 1 are assembled on both sides of the photovoltaic panel 101, the roller Ⅰ14 will contact the side of the photovoltaic panel 101, and then the reduction motor 13 will drive the roller Ⅰ14 to rotate, so that the roller Ⅰ14n can roll on the side of the photovoltaic panel 101, thereby driving the guide frame 1, the connecting block 15, the sliding frame 16 and the distance sensor 23 to move on the photovoltaic panel 101, and then driving the photovoltaic component hidden crack detection device to move on the photovoltaic panel 101, and then using the two distance sensors 23 to simultaneously monitor the position of the junction box 102. When the two distance sensors 23 are aligned with the junction box 102 at the bottom of the photovoltaic panel 101, the two distance sensors 23 will sense that the distance between the junction box 102 is less than the preset value. When the two distance sensors 23 send out signals, the control box 24 controls the reduction motor 13 to stop driving the roller Ⅰ14 to rotate after receiving the two signals, so that the photovoltaic module hidden crack detection device stops moving on the photovoltaic panel 101, and then the control box 24 controls the electric push rod Ⅰ17 to drive the sliding frame 16, the electric push rod Ⅱ18, the connecting plate 19, the top rod 20, the bearing plate 22, the electric push rod Ⅳ26 and the contact head 27 to move to a position close to the position directly below the junction box 102, until the connecting plate 19, the top rod 20 and the bearing plate 22 are located directly below the junction box 102, and then the control box 24 controls the electric push rod Ⅲ21 to drive the bearing plate 22 to move downward, so that the bearing plate 22 is not flush with the top rod 20, and at the same time the control box 24 will The electric push rod II 18 is controlled to drive the connecting plate 19, the push rod 20 and the bearing plate 22 to move upward until the push rod 20 pushes into the junction box 102, thereby unfastening the cover plate 103 from the junction box 102, so that the cover plate 103 falls off from the junction box 102, and then the junction box 102 is opened. After the cover plate 103 falls off, it will fall onto the bearing plate 22, and then the control box 24 will control the electric push rod II 18 to drive the connecting plate 19, the push rod 20 and the bearing plate 22 to move downward and reset, and then the control box 24 will control the electric push rod I 17 to continue to drive the sliding frame 16, the electric push rod II 18, the connecting plate 19, the push rod 20, the bearing plate 22, the electric push rod IV 26 and the contact head 27 to move to a position close to the position directly below the junction box 102 The control box 24 controls the electric push rod IV 26 to drive the contact head 27 to move upward until the contact head 27 is connected to the junction box 102, thereby connecting the photovoltaic panel 101. The control box 24 then controls the light sensor 9 to detect the light intensity in the closed space formed between the flexible light-shielding film 8 and the photovoltaic panel 101. The light sensor 9 then sends the detection data to the camera processing component 10, which compares the detection data. If the detection data is unqualified, it means that the light intensity in the closed space is not suitable for the photovoltaic panel 101 to detect hidden cracks. The camera processing component 10 then gives an alarm to remind the user to perform maintenance.If the detection data is qualified, it means that the light intensity in the closed space is suitable for the photovoltaic panel 101 to detect hidden cracks. Then the camera processing component 10 will send a signal, so that the control box 24 controls the power supply 25 to turn on after receiving the signal, so that the power supply 25 applies a direct current higher than its working voltage to the photovoltaic panel 101 through the wire 28 and the contact head 27, thereby promoting the recombination of electrons and holes inside the photovoltaic panel 101, and then releasing photons, that is, electroluminescence. Then the camera in the camera processing component 10 will take a picture of the photovoltaic panel 101, and the data processing system in the camera processing component 10 will detect the image taken by the camera, so as to detect hidden cracks in the photovoltaic panel 101;

[0034] After the photovoltaic panel 101 completes the hidden crack detection, the camera processing component 10 will send a signal again. After receiving the signal, the control box 24 controls the power supply 25 to turn off. Then the control box 24 will control the electric push rod IV 26 to drive the contact head 27 to move downward and reset, so that the contact head 27 leaves the junction box 102, thereby disconnecting the photovoltaic panel 101. After that, the control box 24 will control the electric push rod I 17 to drive the sliding frame 16, the electric push rod II 18, the connecting plate 19, the top rod 20, the bearing plate 22, the electric push rod IV 26 and the contact head 27 to move away from the position directly below the junction box 102 until the connecting plate 19, the top rod 20 and the bearing plate 22 are again in the position directly below the junction box 102. Then the control box 24 will control the electric push rod III 21 to drive the bearing plate 22 to move upward and reset, so that the bearing plate 22 is flush with the top rod 20. At the same time, the control box 24 will control the electric push rod II 18 to drive the connecting plate 19, the top rod 20 and the bearing plate 22 upward Move until the cover plate 103 on the carrier plate 22 is snapped back onto the junction box 102, then the control box 24 will control the electric push rod II 18 to drive the connecting plate 19, the top rod 20 and the carrier plate 22 to move downward and reset, then the control box 24 will continue to control the electric push rod I 17 to drive the sliding frame 16, the electric push rod II 18, the connecting plate 19, the top rod 20, the carrier plate 22, the electric push rod IV 26 and the contact head 27 to move and reset to a position away from the position directly below the junction box 102, then the control box 24 will control the reduction motor 13 to drive the roller I 14 to rotate, so that the photovoltaic component hidden crack detection device continues to move on the photovoltaic panel 101, thereby moving to the next photovoltaic panel 101, and then repeating the above operation to perform hidden crack detection on the next photovoltaic panel 101, so that the photovoltaic component hidden crack detection device can not only perform hidden crack detection on the photovoltaic panel 101 during the day, but also automatically perform hidden crack detection on the photovoltaic panel 101;

[0035] When all the hidden crack detection of the photovoltaic panels 101 is completed, the servo motor 11 drives the screw rod 12 to reverse and reset, so that the two guide frames 1 move to the side away from each other and reset, and the connecting rod 2 pulls the bellows 3 to stretch and reset, until the two guide frames 1 release the two sides of the photovoltaic panel 101. During this period, the two guide frames 1 will drive the two connecting frames Ⅰ5 to move to the side away from each other and reset, so that the spring 7 returns to its original state, and finally the photovoltaic module hidden crack detection device can be removed from the photovoltaic panel 101.

[0036] See also Fig. 9 As shown, it also includes a crossing mechanism, which includes a multi-section telescopic long rod 29, a connecting frame II 30 and a roller II 31; a multi-section telescopic long rod 29 is symmetrically arranged on the top of the sunshade 4, and the multi-section telescopic long rod 29 has a self-locking function. The self-locking function can be used to limit the multi-section telescopic long rod 29 to prevent the multi-section telescopic long rod 29 from automatically shrinking after extension; the connecting frame II 30 is connected to the end of the multi-section telescopic long rod 29; the roller II 31 is rotatably arranged on the connecting frame II 30.

[0037] When the photovoltaic component hidden crack detection device is placed on the photovoltaic panel 101, the roller II 31 will contact the surface of the photovoltaic panel 101, and then the multi-section telescopic long rod 29 can be pulled to extend; thereafter, when the photovoltaic component hidden crack detection device encounters a gap when moving between the photovoltaic panels 101 (the gap between each group of photovoltaic panels 101), the roller II 31 can be used to stabilize the two groups of photovoltaic panels 101, so that the photovoltaic component hidden crack detection device can cross the gap and move to the next group of photovoltaic panels 101, so that the photovoltaic component hidden crack detection device can easily cross the gap when moving on the photovoltaic panel 101; when the photovoltaic component hidden crack detection device is removed from the photovoltaic panel 101, the multi-section telescopic long rod 29 is pushed to shorten it, so that the connecting frame II 30 and the roller II 31 can be stored conveniently.

[0038] See also Fig.10 As shown, a cleaning mechanism is also included, which includes a fixed plate 32, a wiping block I 33 and a wiping block II 34; the shading plate 4 on the right side is symmetrically provided with a fixed plate 32; the wiping block I 33 is connected to the fixed plate 32; the two connecting rods 2 are connected with wiping blocks II 34, and the wiping blocks I 33 and II 34 are both used to wipe the surface of the photovoltaic panel 101.

[0039] By setting up a cleaning mechanism, when the photovoltaic component hidden crack detection device is placed on the photovoltaic panel 101, the wiping block I33 and the wiping block II34 will contact the surface of the photovoltaic panel 101; when the photovoltaic component hidden crack detection device moves on the photovoltaic panel 101, the wiping block I33 and the wiping block II34 will wipe the surface of the photovoltaic panel 101, thereby cleaning the surface of the photovoltaic panel 101 to prevent foreign matter on the surface from affecting the hidden crack detection of the photovoltaic panel 101.

[0040] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic module hidden crack detection device, comprising a guide frame (1), the number of the guide frames (1) being two, characterized in that: The invention also comprises a connecting rod (2), a bellows (3), a shading plate (4), a connecting frame I (5), a movable frame (6), a spring (7), a flexible shading film (8), a photosensitive sensor (9), a camera processing component (10), an adjustment mechanism, a moving mechanism, a cover opening mechanism and a power connection mechanism. The connecting rod (2) is symmetrically arranged on one guide frame (1), the bellows (3) is symmetrically arranged on the other guide frame (1), the bellows (3) is connected to the connecting rod (2), the shading plate (4) is connected to the guide frame (1), the connecting frame I (5) is installed on the guide frame (1), the movable frame (6) is slidably arranged between the connecting frame I (5), and the two ends of the spring (7) are respectively connected to the connecting rod (2). The connecting frame I (5) and the movable frame (6) are connected to a flexible shading film (8) on the movable frame (6), the shading plates (4) are connected to the flexible shading film (8), the flexible shading film (8) is used to block light, the light sensitive sensor (9) is installed on the shading plate (4), the camera processing component (10) is installed on the movable frame (6), the adjustment mechanism is used to adjust the distance between the two guide frames (1), the moving mechanism is used to drive the guide frame (1) to move on the photovoltaic panel (101), the cover opening mechanism is used to uncover the cover plate (103) on the junction box (102) of the photovoltaic panel (101), and the power connection mechanism is used to energize the junction box (102) of the photovoltaic panel (101).

2. A photovoltaic module hidden crack detection device according to claim 1, characterized in that: The adjustment mechanism comprises a servo motor (11) and a screw rod (12). The servo motor (11) is symmetrically arranged on a guide frame (1) on which a bellows (3) is installed. The output shaft of the servo motor (11) is connected to the screw rod (12). The screw rod (12) is located inside the bellows (3) and is threadedly connected to a connecting rod (2).

3. A photovoltaic module hidden crack detection device according to claim 2, characterized in that: The moving mechanism comprises a reduction motor (13) and a roller I (14). The guide frame (1) is provided with the reduction motor (13), and the roller I (14) is connected to the output shaft of the reduction motor (13).

4. A photovoltaic module hidden crack detection device according to claim 3, characterized in that: The cover opening mechanism comprises a connecting block (15), a sliding frame (16), an electric push rod I (17), an electric push rod II (18), a connecting plate (19), a push rod (20), an electric push rod III (21) and a bearing plate (22), wherein the connecting block (15) is mounted on one of the guide frames (1), the sliding frame (16) is slidably arranged on the connecting block (15), the electric push rod I (17) is mounted on the connecting block (15), the telescopic rod of the electric push rod I (17) is connected to the sliding frame (16), the electric push rod II (18) is mounted on the sliding frame (16), the connecting plate (19) is connected to the telescopic rod of the electric push rod II (18), the push rod (20) is installed on the connecting plate (19) at intervals, the electric push rod III (21) is mounted on the connecting plate (19), and the bearing plate (22) is connected to the telescopic rod of the electric push rod III (21).

5. A photovoltaic module hidden crack detection device according to claim 4, characterized in that: The cover opening mechanism also includes a distance sensor (23) and a control box (24). The distance sensor (23) is installed on the connecting plate (19), and the control box (24) is installed on one of the guide frames (1).

6. A photovoltaic module hidden crack detection device according to claim 5, characterized in that: The power connection mechanism comprises a power source (25), an electric push rod IV (26), a contact head (27) and an electric wire (28). The power source (25) is mounted on a connection block (15), the electric push rod IV (26) is mounted on a sliding frame (16), the contact head (27) is arranged on a telescopic rod of the electric push rod IV (26), and two ends of the electric wire (28) are respectively connected to the power source (25) and the contact head (27).

7. A photovoltaic module hidden crack detection device according to claim 6, characterized in that: The invention also comprises a spanning mechanism, which comprises a multi-section telescopic long rod (29), a connecting frame II (30) and a roller II (31). The multi-section telescopic long rod (29) is symmetrically arranged on the shading plate (4), the connecting frame II (30) is connected to the end of the multi-section telescopic long rod (29), and the roller II (31) is rotatably arranged on the connecting frame II (30).

8. A photovoltaic module hidden crack detection device according to claim 7, characterized in that: The invention also comprises a cleaning mechanism, which comprises a fixed plate (32), a wiping block I (33) and a wiping block II (34), wherein a fixed plate (32) is symmetrically arranged on one of the shading plates (4), the wiping block I (33) is connected to the fixed plate (32), and the wiping block II (34) is connected to the connecting rod (2), and both the wiping block I (33) and the wiping block II (34) are used to wipe the surface of the photovoltaic panel (101).

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