Device and method for testing photovoltaic module array

Abstract

The invention relates to the technical field of photovoltaic module testing, in particular to a photovoltaic module array testing device and method.The device comprises a supporting frame and a clamping mechanism installed on the supporting frame; the testing mechanism is mounted on the supporting frame and is used for carrying out illumination testing on the photovoltaic module in different environments; the clamping mechanism comprises a supporting assembly, a clamping assembly, a limiting assembly, a linkage assembly, a pulling assembly and a locking assembly. The supporting assembly is installed on the supporting frame and used for bearing the photovoltaic assembly. The clamping assembly is installed on the supporting assembly and used for clamping the photovoltaic assembly. The limiting assembly is installed on the supporting assembly and used for releasing limiting of the clamping assembly at the beginning of testing. According to the photovoltaic module clamping device, the clamping plates are used for positioning, at the moment, the photovoltaic module is clamped through the positioned clamping plates, but no pressure is applied to the photovoltaic module, so that the photovoltaic module is clamped without pressure application, and the situation that the photovoltaic module is damaged due to stress in the clamping process is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic module testing, in particular to a photovoltaic module array testing device and method. BACKGROUND

[0002] In the production process of a photovoltaic module array, or before installation outdoors, a testing device is used to simulate outdoor use environments, and whether the power generation efficiency of the photovoltaic module array meets the standard is generally tested by using an artificial light device to simulate light irradiation on the photovoltaic module, so as to test the power generation efficiency of the photovoltaic module at different angles or at different times.

[0003] A photovoltaic module testing tool is disclosed in a granted announcement No. CN216162674U, which comprises a support assembly and a power supply storage box. The support assembly comprises a base, a support frame, and an angle adjusting mechanism. One end of the base is provided with a first limiting part. The base is rotationally connected with the support frame. The angle adjusting mechanism is arranged between the base and the support frame and can maintain the angle between the base and the support frame. The power supply storage box is fixedly connected with the base or the support frame. The photovoltaic module can be placed on the support frame in an inclined manner. The first limiting part limits the movement of one end of the photovoltaic module. The power supply storage box can accommodate the testing power supply when detecting the photovoltaic module. In the hidden crack testing of the photovoltaic module, the support frame in the support assembly supports the photovoltaic module, which can better avoid the problem of blocking the photovoltaic module caused by manual assistance during the supporting process. The power supply storage box can better accommodate the testing power supply to prevent the power supply from being damaged or forgotten.

[0004] However, after the production of the photovoltaic module array, a series of packaging and reinforcement are generally performed after testing. At this time, the photovoltaic module is relatively fragile. During the testing process of the testing device, the angle of the photovoltaic module often needs to be adjusted, so that the photovoltaic module is clamped and fixed by the testing device. The testing device often needs to test photovoltaic modules used in various different scenarios. The sizes of the photovoltaic modules are different, which leads to the difficulty in controlling the clamping force when the testing device clamps the photovoltaic module, and thus may cause the photovoltaic module to be slightly cracked due to stress. SUMMARY

[0005] The present application aims to solve the problems in the background art and provides a photovoltaic module array testing device and method.

[0006] The technical solution of the present invention: A testing device for a photovoltaic module array, comprising a support frame, and further comprising: a clamping mechanism mounted on the support frame; a testing mechanism mounted on the support frame and used for performing illumination tests on the photovoltaic modules under different environments; the clamping mechanism includes a support component, a clamping component, a limiting component, a linkage component, a pulling component, and a locking component; the support component is mounted on the support frame and is used to support the photovoltaic modules; the clamping component is mounted on the support component and is used to clamp the photovoltaic modules; the limiting component is mounted on the support component and is used to release the limiting of the clamping component at the start of the test; the linkage component is mounted at the bottom of the support component and is used to hold the clamping component; the pulling component is mounted on the support component and is used to pull the linkage component to move; the locking component is mounted on the support component and is used to lock the limiting component; after the clamping component clamps the photovoltaic modules, the support component rotates, and after the clamping component releases its limiting, it can no longer clamp the photovoltaic modules, and then the locking component locks the position of the clamping component.

[0007] Preferably, the support assembly includes a first drive device, a rotating frame, an anti-slip plate, a second drive device, and a bidirectional lead screw; the first drive device is mounted on the support frame; the output shaft of the first drive device is connected to the rotating frame; the anti-slip plate is mounted on the top of the rotating frame, the second drive device is mounted on the anti-slip plate, and the bidirectional lead screw is movably sleeved inside the anti-slip plate and connected to the output shaft of the second drive device; there are two second drive devices and two bidirectional lead screws, both of which are mounted on the anti-slip plate, and the two bidirectional lead screws are connected in a cross shape inside the anti-slip plate.

[0008] Preferably, the clamping assembly includes a movable member, a guide rod, a sliding plate, an elastic element, and a clamping plate; the movable member is threadedly engaged with the support assembly and moves on the anti-slip plate as the support assembly is driven; the guide rod is mounted and movably connected to the movable member; the sliding plate is connected to the guide rod and is slidably connected within the movable member; the two ends of the elastic element are respectively connected to the sliding plate and the clamping plate.

[0009] Preferably, the limiting component includes a first spring, a first roller, a round rod, a second spring, an inclined surface, and a locking block; the two ends of the first spring are respectively connected to the moving part and the first roller; the round rod vertically passes through the moving part and connects to the first roller; the two ends of the second spring are respectively connected to the inclined surface and the moving part; the inclined surface fits against the first roller; the locking block passes through the moving part and connects to the inclined surface, and the locking block locks with the clamping component.

[0010] Preferably, the linkage component includes a rectangular groove, an elastic element two, and a top moving plate; the rectangular groove is formed on the anti-slip plate; the two ends of the elastic element two are respectively connected to the anti-slip plate and the top moving plate; the top moving plate abuts against the bottom of the limiting component.

[0011] Preferably, the pulling assembly includes a gear accelerator, a drive gear, an arc rack, a rotating drum, and a pull rope; the gear accelerator is mounted on a rotating frame; the input end of the gear accelerator is connected to the drive gear; the arc rack is mounted on a support frame and meshes with the drive gear; the rotating drum is mounted on the output end of the gear accelerator; the two ends of the pull rope are connected to the rotating drum and the top plate, respectively; the rotation of the rotating drum pulls the pull rope, causing the top plate to descend, thus separating the limiting assembly from the clamping assembly.

[0012] Preferably, the locking assembly includes a mounting chamber, an elastic element three, a moving part, a beveled groove, a spring three, a locking pressure plate, a damping ring, a roller two, and a locking plate; the mounting chamber is mounted on the moving part; the two ends of the elastic element three are respectively connected to the mounting chamber and the moving part; the beveled groove is formed on the moving part; the two ends of the spring three are respectively connected to the roller two and the mounting chamber; the top end of the roller two is connected to the locking pressure plate; the damping ring is mounted on the top of the roller two; the locking pressure plate is mounted on the top end of the roller two; the locking plate is mounted on the clamping plate; the locking pressure plate is located on the moving path of the locking plate.

[0013] Preferably, the testing mechanism includes an illumination section, a support plate, an input section, a telescopic section, and an output section; the support plate is mounted on a rotating frame; the input section is mounted on the support plate; the two ends of the telescopic section are respectively connected to the input section and the output section; the output section is connected to the top of the moving part; the illumination section is mounted on the top of the support frame; the output section can spray different substances to simulate the outdoor environment of photovoltaic modules.

[0014] This invention also provides a testing method for photovoltaic module arrays, using the aforementioned testing device for photovoltaic module arrays, and includes the following specific steps: S1. Place the photovoltaic module on the support component, and then move the moving part towards the photovoltaic module through the support component. At this time, the photovoltaic module is positioned in the middle of the support component by the clamping plate. S2. Then the support component rotates, the linkage component separates from the limit component, so that the sliding plate is released from the limit, and then the elasticity of the elastic element one drives the sliding plate to move towards the guide rod. S3. Then the locking component locks the position of the clamping plate, and the photovoltaic module is clamped at the upper limit of the support component by the clamping plate.

[0015] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: The photovoltaic module is placed on the anti-slip plate, and it is not necessary to place it in the center of the anti-slip plate and align it with the sunlit part. The rotation of the bidirectional screw drives the clamping plate to move towards the center of the anti-slip plate, clamping the photovoltaic module. At this time, the elastic element is squeezed and contracted, and pushes the photovoltaic module to the center of the anti-slip plate from four directions. This allows the staff to place the photovoltaic module without having to place it in the center, improving the convenience of the staff's work.

[0016] At this point, the elastic element 1 is compressed to its shortest state. Then, the drive device 1 is activated, causing the rotating frame to rotate a certain distance. At this time, through the meshing of the drive device 1 and the rotating frame, the drive gear rotates, thereby accelerating the rotation of the drum. This pulls the rope, causing the top plate to descend, separating the roller 1 from the inclined surface. At this time, the elasticity of the spring 2 causes the inclined surface and the locking block to move into the inner cavity of the moving part. After the sliding plate loses the obstruction of the locking block, the force applied to the sliding plate by the contraction of the elastic element 1 causes the sliding plate to move towards the guide rod. At this time, the elastic element 1 expands, and the clamping plate is no longer supported by any force. The sliding plate then pushes the moving part to move towards the installation chamber. The locking plate moves to below the locking pressure plate. The roller 2 descends into the inclined groove through the elasticity of the spring 3, thereby causing the locking pressure plate to descend and engage with the locking plate, thus positioning the clamping plate. At this time, the positioned clamping plate holds the photovoltaic module, but does not apply pressure to the photovoltaic module. This achieves clamping of the photovoltaic module without applying pressure, avoiding damage to the photovoltaic module due to force during clamping.

[0017] Then, an external output source can be connected to the input unit, and water mist or sand can be sprayed onto the surface of the photovoltaic module through the output unit, thereby simulating the power generation efficiency of the photovoltaic module when it is irradiated by the light source under different humidity or dust conditions in an outdoor environment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the anti-slip plate structure proposed in this invention; Figure 3 This is a schematic diagram of the bidirectional lead screw proposed in this invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the clamping plate proposed in this invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 For the present invention Figure 5 Enlarged view of point C in the middle; Figure 8 This is a schematic diagram of the installation chamber proposed in this invention; Figure 9 This is a schematic diagram of the structure of the spring three proposed in this invention; Reference numerals: 1. Support frame; 2. Drive device one; 3. Rotating frame; 4. Anti-slip plate; 5. Drive device two; 6. Two-way lead screw; 7. Moving part; 8. Guide rod; 9. Sliding plate; 10. Elastic element one; 11. Clamping plate; 12. Spring one; 13. Roller one; 14. Round rod; 15. Spring two; 16. Inclined part; 17. Snap-fit ​​block; 18. Rectangular groove; 19. Elastic element two; 20. Top 21. Moving plate; 22. Gear accelerator box; 23. Drive gear; 24. Arc rack; 25. Rotary drum; 26. Pull rope; 27. Mounting chamber; 28. Elastic element three; 29. ​​Moving part; 30. Inclined groove; 31. Spring three; 32. Locking pressure plate; 33. Damping ring; 34. Roller two; 35. Locking plate; 36. Support plate; 37. Input part; 38. Telescopic part; 39. Output part; 30. Illumination part. Detailed Implementation

[0019] Example 1, as Figures 1-9 As shown, the present invention proposes a testing device for a photovoltaic module array, including a support frame 1, and further including: a clamping mechanism mounted on the support frame 1; a testing mechanism mounted on the support frame 1, used for performing illumination tests on the photovoltaic modules under different environments; the clamping mechanism includes a support component, a clamping component, a limiting component, a linkage component, a pulling component, and a locking component; the support component is mounted on the support frame 1 and is used to support the photovoltaic modules; the clamping component is mounted on the support component and is used to clamp the photovoltaic modules; the limiting component is mounted on the support component and is used to release the limiting of the clamping component at the start of the test; the linkage component is mounted at the bottom of the support component and is used to hold the clamping component; the pulling component is mounted on the support component and is used to pull the linkage component to move; the locking component is mounted on the support component and is used to lock the limiting component; after the clamping component clamps the photovoltaic modules, the support component rotates, and after the clamping component releases its limiting, it can no longer clamp the photovoltaic modules, and then the locking component locks the position of the clamping component.

[0020] The support assembly includes a drive device 1 (2), a rotating frame (3), an anti-slip plate (4), a drive device 2 (5), and a double-acting screw (6). The drive device 1 (2) is mounted on the support frame (1). The output shaft of the drive device 1 (2) is connected to the rotating frame (3). The anti-slip plate (4) is mounted on the top of the rotating frame (3). The drive device 2 (5) is mounted on the anti-slip plate (4). The double-acting screw (6) is movably sleeved inside the anti-slip plate (4) and connected to the output shaft of the drive device 2 (5). There are two drive devices 2 (5) and two double-acting screws (6). Both drive devices 2 (5) are mounted on the anti-slip plate (4). The two double-acting screws (6) are connected in a cross shape inside the anti-slip plate (4). The inner cavity of the anti-slip plate (4) has a moving groove. The bottom end of the moving part (7) is a connecting ring. The moving part (7) is threaded with the double-acting screw (6) through the connecting ring. The connecting ring at the bottom end of the moving part (7) is movably sleeved in the moving groove. Thus, when the double-acting screw (6) rotates to drive the moving part (7) to move, the moving groove positions and guides the connecting ring, preventing the moving part (7) from shifting.

[0021] The clamping assembly includes a movable component 7, a guide rod 8, a sliding plate 9, an elastic element 10, and a clamping plate 11. The movable component 7 is threadedly engaged with the support assembly and moves on the anti-slip plate 4 as the support assembly is driven. The guide rod 8 is movably connected to the movable component 7. The sliding plate 9 is connected to the guide rod 8 and is slidably connected within the movable component 7. The two ends of the elastic element 10 are respectively connected to the sliding plate 9 and the clamping plate 11. When the elastic element 10 is retracted to its shortest state, the movable component 7 will not contact the clamping plate 11. When the photovoltaic module is moved... After the top center of the anti-slip plate 4 is aligned with the light-emitting part 39, the drive device 2 is activated to tilt the anti-slip plate 4 at a slight angle. At this time, due to the anti-slip properties of the clamping plate 11 and the anti-slip plate 4, as well as the weight of the photovoltaic module itself, the photovoltaic module will not move due to the rotation of the anti-slip plate 4. The clamping plate 11 is L-shaped, thus limiting the photovoltaic module at the edge. A T-shaped groove is provided on the inner side of the moving part 7, and both sides of the sliding plate 9 are T-shaped sliders. The sliding plate 9 is slidably connected to the T-shaped groove through the T-shaped sliders.

[0022] The limiting assembly includes a first spring 12, a first roller 13, a round rod 14, a second spring 15, an inclined section 16, and a locking block 17; the two ends of the first spring 12 are respectively connected to the moving part 7 and the first roller 13; the round rod 14 vertically passes through the moving part 7 and connects to the first roller 13; the two ends of the second spring 15 are respectively connected to the inclined section 16 and the moving part 7; the inclined section 16 fits against the first roller 13; the locking block 17 passes through the moving part 7 and connects to the inclined section 16, and the locking block 17 engages with the clamping assembly; both the inclined section 16 and the locking block 17... The rod is triangular; the bottom end of the rod 14 is supported by the push plate 20. When the push plate 20 descends, the elasticity of the spring 12 drives the roller 13 and the rod 14 to descend. At this time, they descend along the surface of the inclined part 16. Then, the elasticity of the spring 2 15 drives the inclined part 16 to move towards the roller 13, so that the locking block 17 separates from the sliding plate 9. Then, the sliding plate 9 moves towards the moving part 28, and through the sliding connection between the sliding plate 9 and the moving part 7, the sliding plate 9 will not separate from the moving part 7.

[0023] The linkage component includes a rectangular groove 18, an elastic element 19, and a top plate 20. The rectangular groove 18 is formed on the anti-slip plate 4. The two ends of the elastic element 19 are connected to the anti-slip plate 4 and the top plate 20, respectively. The top plate 20 abuts the bottom of the limiting component. The top plate 20 abuts the round rod 14, so that the roller 13 can block the inclined surface 16, so that the locking block 17 is locked with the sliding plate 9. In the initial state, the sliding plate 9 is blocked by the locking block 17, so that the sliding plate 9 will not move when the clamping plate 11 clamps the photovoltaic module. When the locking block 17 separates from the sliding plate 9, the elasticity of the elastic element 10 drives the sliding plate 9 to reset. When the photovoltaic module is tested, in the tilted state, the drive device 2 5 drives the bidirectional lead screw 6 to reverse, so that the clamping plate 11. After separation and reset of the photovoltaic module, the guide rod 8 is pushed by the rotating frame 3, thereby driving the sliding plate 9 to move and reset towards the middle of the anti-slip plate 4. Then, the drive device 2 drives the rotating frame 3 to rotate and reset. Then, through the fact that the middle of the arc rack 23 has no teeth, when the anti-slip plate 4 is reset to a horizontal state, the push plate 20 rises through the elasticity of the elastic element 19, pushing the round rod 14 upward. When the sliding plate 9 moves and resets towards the locking block 17, the locking block 17 is pushed into the inner cavity of the moving part 7 along the inclined surface of the locking block 17. The roller 13 is pushed downward by the inclined surface 16. Alternatively, the anti-slip plate 4 can be rotated at a certain angle, so that the drive gear 22 and the arc rack 23 re-mesh. At this time, the locking block 17 is in the state of retracting into the inner cavity of the moving part 7.

[0024] The pulling assembly includes a gear accelerator box 21, a drive gear 22, an arc-shaped rack 23, a rotating drum 24, and a pull rope 25. The gear accelerator box 21 is mounted on the rotating frame 3. The input end of the gear accelerator box 21 is connected to the drive gear 22. The arc-shaped rack 23 is mounted on the support frame 1 and meshes with the drive gear 22. The rotating drum 24 is mounted on the output end of the gear accelerator box 21. The two ends of the pull rope 25 are connected to the rotating drum 24 and the top plate 20, respectively. The rotating drum 24 rotates to pull the pull rope. 25 drives the top plate 20 to descend, causing the limiting component to separate from the clamping component; the middle part of the arc rack 23 is empty and no gear teeth are provided; when the drive device 2 drives the rotating frame 3 to rotate a small angle, the drive gear 22 meshes with the arc rack 23, causing the drive gear 22 to rotate, and then through the acceleration transmission of the gear acceleration box 21, it drives the rotating drum 24 to rotate rapidly and pull the pull rope 25, thereby pulling the top plate 20 downward, so that the top plate 20 separates from the round rod 14.

[0025] The locking assembly includes a mounting chamber 26, an elastic element 27, a moving part 28, a beveled groove 29, a spring 30, a locking pressure plate 31, a damping ring 32, a roller 33, and a locking plate 34. The mounting chamber 26 is mounted on the moving part 7. The two ends of the elastic element 27 are connected to the mounting chamber 26 and the moving part 28, respectively. The beveled groove 29 is formed on the moving part 28. The two ends of the spring 30 are connected to the roller 33 and the mounting chamber 26, respectively. The top of the roller 33 is connected to the locking pressure plate 31. The damping ring 32 is mounted on the top of the roller 33. The locking pressure plate 31 is mounted on the top of the roller 33. The locking plate 34 is mounted on the clamping plate 11. The locking pressure plate 31 is located on the moving path of the locking plate 34. The beveled groove 29... 9 is a right-angled trapezoid; the bottom of the locking pressure plate 31 and the top of the locking plate 34 are both small triangular strips; when the sliding plate 9 moves towards the moving part 28, it pushes the moving part 28 into the mounting chamber 26. Then, the elasticity of the spring 30 drives the roller 2 33 to descend, thereby driving the locking pressure plate 31 to descend. Then, through the setting of the damping ring 32, when the damping ring 32 contacts the mounting chamber 26, it will very briefly slow down the descent speed of the locking pressure plate 31. After the elastic element 10 is fully extended, the locking pressure plate 31 descends again and engages with the locking plate 34; the elastic element 10, the elastic element 2 19 and the elastic element 3 27 are all composed of the spring 4 and the telescopic rod; the drive device 1 2 and the drive device 2 5 are both motors.

[0026] Example 2, as Figures 1-3 As shown, the present invention proposes a testing device for a photovoltaic module array. Compared with Embodiment 1, the testing mechanism of this embodiment includes an illumination section 39, a support plate 35, an input section 36, a telescopic section 37, and an output section 38. The support plate 35 is mounted on the rotating frame 3; the input section 36 is mounted on the support plate 35; the two ends of the telescopic section 37 are respectively connected to the input section 36 and the output section 38; the output section 38 is connected to the top of the moving part 7; the illumination section 39 is mounted on the top of the support frame 1; the output section 38 can spray different substances to simulate the outdoor environment of the photovoltaic module; the output source of sand or water can be connected to the input section 36, and then the sand or water and other substances are sprayed onto the surface of the photovoltaic module through the output section 38, thereby simulating the power generation efficiency of the photovoltaic module under different humidity or dusty environments.

[0027] Example 3, as follows Figures 1-9 As shown, the present invention proposes a testing method for photovoltaic module arrays, which uses the testing device for photovoltaic module arrays described in Embodiment 1, and includes the following specific steps: S1. Place the photovoltaic module on the support component, and then move the moving part 7 towards the photovoltaic module through the support component. At this time, the photovoltaic module is positioned in the middle of the support component by the clamping plate 11. S2. Then the support component rotates, the linkage component separates from the limiting component, so that the sliding plate 9 is released from the limit. Then the elastic element 10 drives the sliding plate 9 to move towards the guide rod 8. S3. Subsequently, the locking component locks the position of the clamping plate 11, and the photovoltaic module is clamped at the upper limit of the supporting component by the clamping plate 11.

[0028] In summary, in this invention, the photovoltaic module is placed in the middle of the anti-slip plate 4 without deliberately aligning it with the illumination part 39. Then, the drive device 5 is activated to rotate the bidirectional lead screw 6. Through the threaded engagement between the bidirectional lead screw 6 and the moving parts 7, the two moving parts 7, which are threadedly engaged with the bidirectional lead screw 6, move along the bidirectional lead screw 6 towards the middle of the anti-slip plate 4, so that the clamping plate 11 fits against the edge of the photovoltaic module. The moving parts 7 continue to move towards the photovoltaic module, so that the elastic element 10 is compressed to its shortest state. At this time, the photovoltaic module will be under a brief stress state and is pushed to the middle of the anti-slip plate 4. This achieves the positioning of photovoltaic modules of different sizes in the middle of the anti-slip plate 4 and aligned with the illumination part 39, ensuring sufficient light source illumination.

[0029] Next, the drive device 2 is started, causing the rotating frame 3 to rotate a short distance, so that the drive gear 22 meshes with the arc-shaped rack 23, causing the drive gear 22 to rotate. The rotation of the drive gear 22 is accelerated through the gear acceleration box 21, thereby driving the rotating drum 24 to rotate. The rotating drum 24 pulls the pull rope 25, thereby pulling the top plate 20 downward, causing the top plate 20 to separate from the round rod 14. At this time, the elasticity of the spring 12 causes the roller 13 to descend. Then, the elasticity of the spring 215 causes the inclined part 16 to move towards the roller 13, thereby causing the locking block 17 to separate from the sliding plate 9. Subsequently, the sliding plate 9 moves towards the guide rod 8 through the elasticity of the elastic element 10, and the sliding plate 9 pushes the moving part 28 into the mounting chamber 26. At this time, the roller 33 descends along the inclined groove 29, thereby driving the locking pressure plate 31 to descend. At this time, the locking plate 34 on the clamping plate 11, which is not under force, is pressed and locked by the locking pressure plate 31, thereby fixing the position of the clamping plate 11. This ensures that the clamping plate 11 only attaches and fixes the photovoltaic module without applying pressure to the photovoltaic module. Furthermore, the anti-slip properties of the clamping plate 11 and the anti-slip properties of the anti-slip plate 4 further increase the stability of the photovoltaic module.

[0030] Next, dust or water vapor is ejected through the output section 38 to simulate the outdoor use environment of the photovoltaic module, and the photovoltaic module is tested for illumination through the illumination section 39.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A testing device for a photovoltaic module array, comprising a support frame (1), characterized in that, Also includes: A clamping mechanism is mounted on a support frame (1); The testing facility is mounted on a support frame (1) and is used to test the photovoltaic modules under different lighting conditions. The clamping mechanism includes a support component, a clamping component, a limiting component, a linkage component, a pulling component, and a locking component; the support component is installed on the support frame (1) and is used to support the photovoltaic module; the clamping component is installed on the support component and is used to clamp the photovoltaic module; the limiting component is installed on the support component and is used to release the limiting of the clamping component when the test starts; the linkage component is installed at the bottom of the support component and is used to hold the clamping component; the pulling component is installed on the support component and is used to pull the linkage component to move; the locking component is installed on the support component and is used to lock the limiting component; after the clamping component clamps the photovoltaic module, the support component rotates, and after the clamping component releases the limiting, it cannot clamp the photovoltaic module, and then the locking component locks the position of the clamping component.

2. The testing device for a photovoltaic module array according to claim 1, characterized in that, The support assembly includes a drive device one (2), a rotating frame (3), an anti-slip plate (4), a drive device two (5), and a two-way lead screw (6); the drive device one (2) is mounted on the support frame (1); the output shaft of the drive device one (2) is connected to the rotating frame (3); the anti-slip plate (4) is mounted on the top of the rotating frame (3), the drive device two (5) is mounted on the anti-slip plate (4), and the two-way lead screw (6) is movably sleeved in the anti-slip plate (4) and connected to the output shaft of the drive device two (5); there are two drive devices two (5) and two two-way lead screws (6), both drive devices two (5) are mounted on the anti-slip plate (4), and the two two-way lead screws (6) are connected in a cross shape inside the anti-slip plate (4).

3. The testing device for a photovoltaic module array according to claim 1, characterized in that, The clamping assembly includes a movable part (7), a guide rod (8), a sliding plate (9), an elastic element (10), and a clamping plate (11); the movable part (7) is threadedly engaged with the support assembly and moves on the anti-slip plate (4) as the support assembly is driven; the guide rod (8) is installed and movably connected to the movable part (7); the sliding plate (9) is connected to the guide rod (8) and is slidably connected inside the movable part (7); the two ends of the elastic element (10) are respectively connected to the sliding plate (9) and the clamping plate (11).

4. The testing device for a photovoltaic module array according to claim 3, characterized in that, The limiting assembly includes a spring (12), a roller (13), a round rod (14), a spring (15), a beveled part (16), and a locking block (17); the two ends of the spring (12) are connected to the moving part (7) and the roller (13) respectively; the round rod (14) vertically passes through the moving part (7) and connects to the roller (13); the two ends of the spring (15) are connected to the beveled part (16) and the moving part (7) respectively; the beveled part (16) fits against the roller (13); the locking block (17) passes through the moving part (7) and connects to the beveled part (16), and the locking block (17) locks into the clamping assembly.

5. The testing apparatus for a photovoltaic module array according to claim 2, characterized in that, The linkage component includes a rectangular groove (18), an elastic element two (19), and a top plate (20); the rectangular groove (18) is opened on the anti-slip plate (4); the two ends of the elastic element two (19) are connected to the anti-slip plate (4) and the top plate (20) respectively; the top plate (20) abuts the bottom of the limiting component.

6. The testing apparatus for a photovoltaic module array according to claim 5, characterized in that, The pulling assembly includes a gear accelerator box (21), a drive gear (22), an arc rack (23), a rotating drum (24), and a pull rope (25); the gear accelerator box (21) is mounted on the rotating frame (3); the input end of the gear accelerator box (21) is connected to the drive gear (22); the arc rack (23) is mounted on the support frame (1) and meshes with the drive gear (22); the rotating drum (24) is mounted on the output end of the gear accelerator box (21); the two ends of the pull rope (25) are connected to the rotating drum (24) and the top plate (20) respectively; the rotating drum (24) rotates and pulls the pull rope (25), causing the top plate (20) to descend, so that the limiting assembly separates from the clamping assembly.

7. The testing apparatus for a photovoltaic module array according to claim 3, characterized in that, The locking assembly includes a mounting chamber (26), an elastic element three (27), a moving part (28), a beveled groove (29), a spring three (30), a locking pressure plate (31), a damping ring (32), a roller two (33), and a locking plate (34). The mounting chamber (26) is mounted on the moving part (7). The two ends of the elastic element three (27) are connected to the mounting chamber (26) and the moving part (28), respectively. The beveled groove (29) is opened on the moving part (28). The two ends of the spring three (30) are connected to the roller two (33) and the mounting chamber (26), respectively. The top of the roller two (33) is connected to the locking pressure plate (31). The damping ring (32) is mounted on the top of the roller two (33). The locking pressure plate (31) is mounted on the top of the roller two (33). The locking plate (34) is mounted on the clamping plate (11). The locking pressure plate (31) is located on the moving path of the locking plate (34).

8. The testing apparatus for a photovoltaic module array according to claim 3, characterized in that, The testing mechanism includes a light-emitting section (39), a support plate (35), an input section (36), a telescopic section (37), and an output section (38); the support plate (35) is mounted on the rotating frame (3); the input section (36) is mounted on the support plate (35); the two ends of the telescopic section (37) are connected to the input section (36) and the output section (38) respectively; the output section (38) is connected to the top of the moving part (7); the light-emitting section (39) is mounted on the top of the support frame (1); the output section (38) can spray different substances to simulate the outdoor environment of photovoltaic modules.

9. A testing method for a photovoltaic module array, using the testing apparatus for a photovoltaic module array as described in claim 3, characterized in that, The specific steps include the following: S1. Place the photovoltaic module on the support component, and then move the moving part (7) towards the photovoltaic module through the support component. At this time, the photovoltaic module is positioned in the middle of the support component by the clamping plate (11). S2. Then the support component rotates, the linkage component separates from the limiting component, so that the sliding plate (9) is released from the limit. Then the elasticity of the elastic element (10) drives the sliding plate (9) to move in the direction of the guide rod (8). S3. Then the locking component locks the position of the clamping plate (11) and the photovoltaic module is stuck in the upper limit position of the support component by the clamping plate (11).

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