Quality testing equipment and testing methods for photovoltaic modules

Abstract

This invention relates to the technical field of solar cells, and more particularly to a quality testing device and method for photovoltaic modules. The device includes a square support and clamping plates, with a pair of clamping plates. One side of each clamping plate has a U-shaped limiting groove for accommodating one end of the solar panel body. A pair of rotating disks are fixedly connected to both ends of the clamping plates. A movable block is rotatably connected to the outer side of each rotating disk. A pair of concave levers are fixedly connected to the inner side of the square support. The movable block slides within the concave levers. The rotating disks cause the clamping plates to adjust their angle slightly upwards or downwards, and the movable block causes the pair of clamping plates to move closer together, thus performing bending strength performance testing on the solar panel body. This invention conveniently and efficiently achieves bidirectional testing functionality.

Description

Technical Field

[0001] This invention relates to the technical field of solar cells, and more particularly to quality testing equipment and methods for photovoltaic modules. Background Technology

[0002] Photovoltaic modules, also known as solar panels, are the most important components of a solar power generation system. A complete photovoltaic module is composed of dozens of solar cells, a junction box, and a frame. The structural manufacturing processes of photovoltaic modules are divided into: 1. Half-cell structure process, which involves cutting a single solar cell into two pieces and then assembling them into a photovoltaic module; 2. Shingled structure process, which involves cutting a single solar cell into five to six long strips and then using conductive adhesive to overlap the edges of multiple small solar cells to assemble them into a photovoltaic module; 3. Flexible module process, also known as lightweight module, where photovoltaic modules can be bent, making them particularly suitable for installation on curved roofs, etc. It is a solution that uses flexible panels instead of glass panels based on the shingled photovoltaic module process.

[0003] Because flexible modules have a certain degree of flexibility, they can be used in relatively curved applications. However, since they need to maintain a curved state, the solar panels are prone to cracks or damage during the bending process. Therefore, in the actual production process of flexible modules, it is necessary to test their bending strength performance and then inspect their surface appearance to determine whether their quality is up to standard. In the current inspection work, bending tests are mostly performed by robotic arms. Since the bending direction cannot be controlled, the solar panels can only bend in a single direction, which has significant limitations.

[0004] Therefore, it is necessary to provide quality testing equipment and methods for photovoltaic modules, which can achieve two-way testing. Summary of the Invention

[0005] The purpose of this invention is to provide quality testing equipment and methods for photovoltaic modules to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a quality testing device and testing method for photovoltaic modules, comprising a square bracket and a clamping plate.

[0007] The clamping plates are provided in pairs, and a U-shaped limiting groove is opened on one side of the clamping plates. The U-shaped limiting groove is used to accommodate one end of the solar panel body. A pair of rotating disks are fixedly connected to both ends of the clamping plates. A moving block is rotatably connected to the outer side of the rotating disks. A pair of concave levers are fixedly connected to the inner side of the square bracket. The moving block slides and engages with the inner side of the concave levers. The rotating disks drive the clamping plates to adjust their angle slightly upward or downward. The moving block drives the pair of clamping plates to move closer to each other to test the bending strength performance of the solar panel body.

[0008] In one embodiment, a second movable block is fixedly connected to one end of the first movable block, a second rotating disk is rotatably connected to the inner side of the second movable block, a pair of limiting rollers are rotatably connected to the inner side of the second rotating disk, a connecting plate is fixedly connected to one end of the first rotating disk, and a swing roller is rotatably connected to the inner side of the pair of connecting plates. In the initial state, the pair of limiting rollers are distributed on the upper and lower sides of one side of the swing roller, and the clamping plate is parallel to the horizontal line. A torsion spring is provided at the rotatable connection between the second rotating disk and the second movable block, and the torsion spring is used to reset the second rotating disk.

[0009] In one embodiment, a pair of bidirectional threaded rods are rotatably connected to the inner side of the square bracket. The bidirectional threaded rods are disposed on the inner side of the concave lever and parallel to it. A connecting rod is disposed on the middle side of the bidirectional threaded rod. The surface of the bidirectional threaded rod is provided with external threads of opposite directions and is respectively disposed on both sides of the connecting rod. The bidirectional threaded rod passes through and is threadedly connected to the first and second moving blocks. The bidirectional threaded rod is driven to rotate by a motor assembly.

[0010] In one embodiment, the upper and lower ends of the rotating disk are fixedly connected to limit rods, and the inner ends of the square bracket are provided with a plurality of guide telescopic columns. The inner sides of the plurality of guide telescopic columns are provided with an upper moving plate and a lower moving plate. The upper end of the upper moving plate is fixedly connected to a pair of brake blocks, and the lower end of the lower moving plate is similarly fixedly connected to a pair of brake blocks. The brake blocks slide in cooperation with the concave lever. The upper moving plate and the lower moving plate move relative to each other and alternately contact the concave lever. When the upper moving plate or the lower moving plate contacts the concave lever, the brake blocks extend to the inner side of the concave lever.

[0011] In one embodiment, a pair of triangular plates are fixedly connected to the outer end of the upper moving plate, and an upper connecting rod is fixedly connected between the pair of triangular plates. Similarly, a lower connecting rod is provided at the outer end of the lower moving plate. A central connecting rod is provided between the upper and lower connecting rods. A pair of connecting blocks are provided on the middle side of the central connecting rod. The upper and lower ends of the connecting blocks are rotatably connected to the upper and lower connecting rods, respectively. Fixed blocks are rotatably connected to both ends of the central connecting rod, and the fixed blocks are fixedly connected to the square bracket.

[0012] In one embodiment, the connecting block is divided into three movable parts: upper, middle, and lower, which are rotatably connected to the upper connecting rod, the central connecting rod, and the lower connecting rod, respectively. The three parts of the connecting block are connected by guide telescopic rods.

[0013] In one embodiment, an arc-shaped block is fixedly connected to the inner side of both the upper and lower moving plates. The arc-shaped block is in the shape of a quarter-circle, and both ends of the arc-shaped block are chamfered. A circular opening is opened through the center of the concave lever, and a disk is rotatably connected inside the circular opening. A rotating block is fixedly connected to the outer end of the disk. The rotating block has the same shape as the arc-shaped block, and the chamfers of the two are matched. The farthest distance between the upper or lower moving plate and the concave lever is equal to the thickness of the arc-shaped block. When the upper or lower moving plate is in contact with the concave lever, the arc-shaped block extends into the circular opening and contacts the disk. The axes of the arc-shaped block, the rotating block, and the disk coincide.

[0014] In one embodiment, the concave lever has a square opening extending through its middle side, and sliders are slidably fitted inside the upper and lower square openings. One end of each slider is provided with a spring telescopic rod. The upper and lower sliders slide in opposite directions. A straight toothed groove is provided inside the slider. A gear is provided inside the disc. The gear meshes with the straight toothed groove. A push block is fixedly connected to one end of the slider. The push block is positioned opposite to a moving block. The moving block pushes the push block to a certain displacement.

[0015] In one embodiment, a rotating shaft is fixedly connected to the center of the disk, and several adapting grooves are provided on the outer side of the rotating shaft. A second spring telescopic rod is provided in the adapting groove, and an arc-shaped locking block is provided at one end of the second spring telescopic rod. An annular inclined groove is provided on the inner side of the gear, and the gear is rotatably connected to the disk. The arc-shaped locking block is adapted to the annular inclined groove, and the annular inclined groove restricts the arc-shaped locking block from rotating in one direction. There is friction between the disk and the circular opening.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention uses two moving blocks along a concave lever to drive a pair of clamping plates to move closer to each other until the pair of clamping plates are locked and supported at both ends of the solar panel body. Then, the two rotating disks drive the pair of clamping plates to flip upward synchronously, thereby fine-tuning the angle at both ends of the solar panel body, thereby driving the central part of the solar panel body to bend upward. With the pair of clamping plates moving closer to each other, the solar panel body is continuously driven to increase the bending angle until the qualified standard for testing is reached, thus completing the bending strength performance test. Then, the pair of clamping plates reset and move, so that the solar panel body returns to a horizontal state. Similarly, the two rotating disks drive the pair of clamping plates to flip downward synchronously, so that the clamping plates drive the solar panel body to bend downward for testing. This achieves bidirectional testing, resulting in better and more comprehensive testing results. Attached Figure Description

[0017] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0018] In the attached diagram:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a front sectional view of the present invention;

[0021] Figure 3 This is a side sectional view of the present invention;

[0022] Figure 4 yes Figure 3 A magnified view of a portion of region B;

[0023] Figure 5 This is a partial cross-sectional view of the square bracket of the present invention;

[0024] Figure 6 This is a three-dimensional schematic diagram of the bidirectional threaded rod of the present invention;

[0025] Figure 7 yes Figure 2 A magnified schematic diagram of a portion of region A;

[0026] Figure 8 This is a three-dimensional schematic diagram of the upper and lower sliding plates of the present invention;

[0027] Figure 9 This is a three-dimensional schematic diagram of the gear of the present invention;

[0028] Figure 10 This is a three-dimensional schematic diagram of the concave lever of the present invention;

[0029] Figure 11 This is a partial cross-sectional view of the slider of the present invention;

[0030] In the diagram: 1. Clamping plate; 101. U-shaped limiting groove; 102. Rotating disk one; 103. Moving block one; 104. Concave lever; 105. Moving block two; 106. Rotating disk two; 107. Limiting roller; 108. Connecting plate; 109. Swinging roller; 110. Limiting rod;

[0031] 201. Upper moving plate; 202. Lower moving plate; 203. Brake block; 204. Triangular plate; 205. Upper connecting rod; 206. Lower connecting rod; 207. Center connecting rod; 208. Connecting block; 209. Fixing block;

[0032] 3. Arc-shaped block; 301. Disc; 302. Rotary block; 303. Gear; 304. Shaft; 305. Arc-shaped locking block;

[0033] 4. Square opening; 401. Slider; 402. Spring telescopic rod one; 403. Push block;

[0034] 5. Lifting platform; 501. Electric telescopic pole;

[0035] 6. Solar panel body;

[0036] 7. Conveyor belt; 701. Short conveyor rollers; 702. Long conveyor rollers;

[0037] 8. Visual inspection agencies;

[0038] 9. Square bracket; 901. Two-way threaded rod; 902. Guide telescopic column. Detailed Implementation

[0039] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] Please see Figure 1-11 The present invention provides a technical solution: a quality testing device and testing method for photovoltaic modules, comprising a square support 9, a clamping plate 1, a bending section, a lifting platform 5, a conveyor belt 7, and a visual inspection mechanism 8.

[0041] A pair of clamping plates 1 are provided. A U-shaped limiting groove 101 is opened on one side of the clamping plate 1. The U-shaped limiting groove 101 is used to accommodate one end of the battery panel body 6. A pair of rotating disks 102 are fixedly connected to both ends of the clamping plate 1. A moving block 103 is rotatably connected to the outer side of the rotating disk 102. A pair of concave levers 104 are fixedly connected to the inner side of the square bracket 9. The moving block 103 slides in cooperation with the inner side of the concave lever 104. The rotating disk 102 drives the clamping plate 1 to adjust the angle slightly upward or downward. The moving block 103 drives the pair of clamping plates 1 to move closer to each other to test the bending strength performance of the battery panel body 6.

[0042] The lifting platform 5 is a concave plate that supports the battery panel body 6 being fed. Several electric telescopic rods 501 are provided at the lower end of the lifting platform 5. The electric telescopic rods 501 are located on the upper side of the conveyor belt 7. The lifting platform 5 moves the battery panel body 6, which has completed inspection, onto the conveyor belt 7. The vision inspection mechanism 8 is located on the upper side of the conveyor belt 7 and performs appearance inspection on the battery panel body 6.

[0043] First, the solar panel body 6 to be tested is manually placed on the upper side of the lifting platform 5. Then, the two moving blocks 103 move along the concave lever 104, causing a pair of clamping plates 1 to move closer to each other until the pair of clamping plates 1 are locked and supported at both ends of the solar panel body 6. Then, the lifting platform 5 is lowered away from the solar panel body 6 to avoid interference with the subsequent bending test. Next, the two rotating disks 102 drive the pair of clamping plates 1 to rotate upward synchronously, thereby fine-tuning the angle at both ends of the solar panel body 6, thereby driving the central part of the solar panel body 6 to bend upward. With the pair of clamping plates 1 moving closer to each other, the solar panel body 6 is continuously driven to increase the bending angle until it reaches the qualified standard for testing, thus completing the bending strength performance test.

[0044] Then, the pair of clamping plates 1 are reset and moved, so that the battery panel body 6 returns to a horizontal state. Then, similarly, the pair of clamping plates 1 are driven to flip downward synchronously by the rotating disks 102 on both sides, so that the clamping plates 1 drive the battery panel body 6 to bend downward for detection, realizing bidirectional detection, which has a better and more comprehensive detection effect.

[0045] After the test, the pair of clamps 1 move away from each other, and the lifting platform 5 rises to pick up the solar panel body 6 again and lowers it to the upper side of the conveyor belt 7. The conveyor belt 7 includes a short transport roller 701 and a long transport roller 702. The distance between the two short transport rollers 701 can accommodate the lifting platform 5, and the part of the solar panel body 6 extending to the outside of the lifting platform 5 falls on the short transport roller 701. The short transport roller 701 can transport the solar panel body 6, and the lifting platform 5 can rise and reset to support the next solar panel body 6.

[0046] Next, the conveyor belt 7 transports the inspected solar panel body 6 to the underside of the vision inspection mechanism 8. The vision inspection mechanism 8 inspects the appearance of the solar panel body 6 (the vision inspection mechanism is a widely used technology in the mechanical field, so a simplified schematic diagram is shown in the attached figure). If its surface is intact, it means that the bending strength performance of the solar panel body 6 is qualified; otherwise, it is unqualified, and the inspection of the solar panel body 6 is completed.

[0047] One end of the movable block 103 is fixedly connected to the movable block 2 105. The inner side of the movable block 2 105 is rotatably connected to the rotating disk 2 106. The inner side of the rotating disk 2 106 is rotatably connected to a pair of limiting rollers 107. One end of the rotating disk 102 is fixedly connected to the connecting plate 108. The inner side of the pair of connecting plates 108 is rotatably connected to the swing roller 109. In the initial state, the pair of limiting rollers 107 are distributed on the upper and lower sides of the swing roller 109 and the clamping plate 1 is parallel to the horizontal line. A torsion spring is provided at the rotatable connection between the rotating disk 2 106 and the movable block 2 105. The torsion spring is used to reset the rotating disk 2 106.

[0048] Preferably, a torsion spring is provided so that the rotating disk 2 106 controls a pair of limiting rollers 107 to be on the same vertical line in the initial state. Similarly, a torsion spring is provided at the rotational connection of the rotating disk 1 102 so that the clamping plate 1 is parallel to the horizontal line. When it is necessary to make a fine adjustment to the angle of both ends of the battery panel body 6, the rotating disk 2 106 rotates accordingly, driving the pair of limiting rollers 107 to rotate. The swing roller 109 is arranged between the pair of limiting rollers 107. When the rotating disk 2 106 rotates clockwise, the upper limiting roller 107 alone rotates with the battery panel body 6. When the swing roller 109 contacts and pushes it, the swing roller 109 receives a thrust from the oblique upward and rotates in the opposite direction around the axis of the rotating disk 102, thereby driving the rotating disk 102 and the clamping plate 1 to rotate, so that one end of the solar panel body 6 can be finely adjusted upward. Conversely, when the rotating disk 106 reverses, the limiting roller 107 on the lower side contacts the swing roller 109 alone and pushes it, so that one end of the solar panel body 6 is finely adjusted downward, thus realizing the bidirectional bending test of the solar panel body 6.

[0049] A pair of bidirectional threaded rods 901 are rotatably connected to the inner side of the square bracket 9. The bidirectional threaded rods 901 are set on the inner side of the concave lever 104 and are parallel to it. A connecting thin rod is set on the middle side of the bidirectional threaded rods 901. The surface of the bidirectional threaded rods 901 is provided with external threads of opposite directions and are respectively set on both sides of the connecting thin rod. The bidirectional threaded rods 901 pass through the first movable block 103 and the second movable block 105 and are threadedly connected to them. The bidirectional threaded rods 901 are driven to rotate by the motor assembly.

[0050] Preferably, when it is necessary to drive a pair of clamping plates 1 to move relative to each other, the bidirectional threaded rod 901 is driven to rotate by the motor assembly. The two ends of the bidirectional threaded rod 901 have opposite external threads and are threadedly connected to the first moving block 103 and the second moving block 105. When it rotates, it drives the first moving block 103 and the second moving block 105 on both sides to move, and the moving directions on both sides are opposite, thereby driving the pair of clamping plates 1 to move relative to each other.

[0051] Limiting rods 110 are fixedly connected to the upper and lower ends of the rotating disk 106. Several guide telescopic columns 902 are provided on the inner ends of the square bracket 9. An upper moving plate 2 and a lower moving plate 201 are provided on the inner side of the guide telescopic columns 902. A pair of brake blocks 202 are fixedly connected to the upper end of the upper moving plate 2. Similarly, a pair of brake blocks 202 are fixedly connected to the lower end of the lower moving plate 201. The brake blocks 202 slide with the concave lever 104. The upper moving plate 2 and the lower moving plate 201 move relative to each other and alternately contact the concave lever 104. When the upper moving plate 2 or the lower moving plate 201 contacts the concave lever 104, the brake blocks 202 extend to the inner side of the concave lever 104.

[0052] Preferably, when it is necessary to control the rotating disk 106 to rotate in both directions, a limit rod 110 and a brake block 202 are provided. Specifically, when it is necessary to control the rotating disk 106 to rotate in the forward direction, the lower moving plate 201 moves to contact the concave lever 104 and the upper moving plate 2 moves away from the concave lever 104, so that the lower brake block 202 extends to the inside of the concave lever 104. Then, a pair of clamping plates 1 move along the concave lever 104, so that the lower brake block 202 contacts the lower limit rod 110 (e.g., ...). Figure 4 As shown, the lower limiting rod 110 is restricted, and as the rotating disk 106 moves, the rotating disk 106 rotates itself, which drives the clamping plate 1 to deflect upward for fine-tuning of the angle. As the rotating disk 106 is moved and rotated, the lower limiting rod 110 tilts at the corresponding angle until it is restricted by the brake block 202. Then, the clamping plates 1 on both sides can be further bent for the adjusted angle. In other words, the angle adjustment of the clamping plate 1 does not require an additional driving component. Only by moving the first moving block 103, the clamping plate 1 can be moved relative to each other and the angle can be automatically flipped, thereby realizing the bending test of the battery panel body 6. When the rotation direction needs to be adjusted, the lower moving plate 201 is reset, and the upper moving plate 2 moves to contact the concave lever 104, which drives the clamping plate 1 to flip downward for angle adjustment, thus achieving stable control of the test direction.

[0053] A pair of triangular plates 203 are fixedly connected to the outer end of the upper moving plate 2. An upper connecting rod 204 is fixedly connected between the pair of triangular plates 203. Similarly, a lower connecting rod 205 is provided at the outer end of the lower moving plate 201. A central connecting rod 206 is provided between the upper connecting rod 204 and the lower connecting rod 205. A pair of connecting blocks 207 are provided on the middle side of the central connecting rod 206. The upper and lower ends of the connecting blocks 207 are rotatably connected to the upper connecting rod 204 and the lower connecting rod 205, respectively. Fixed blocks 208 are rotatably connected to both ends of the central connecting rod 206. The fixed blocks 208 are fixedly connected to the square bracket 9.

[0054] Preferably, since the upper moving plate 2 and the lower moving plate 201 can only move relative to each other and alternately contact the concave lever 104, a central connecting rod 206 is provided. The position of the central connecting rod 206 remains unchanged, so that the connecting block 207 reciprocates around the central connecting rod 206 as the rotation center, thereby causing the upper moving plate 2 and the lower moving plate 201 to alternately contact the concave lever 104, thereby stabilizing and controlling the flipping direction of the clamping plate 1.

[0055] The connecting block 207 is divided into three movable parts: upper, middle and lower. These parts are rotatably connected to the upper connecting rod 204, the central connecting rod 206 and the lower connecting rod 205, respectively. The three parts of the connecting block 207 are connected by guide telescopic rods.

[0056] Preferably, the connecting block 207 is provided as three movable parts, and all three are connected by guide telescopic rods (e.g., Figure 7 As shown in the figure, the connecting block 207 controls the alternating movement of the upper moving plate 2 and the lower moving plate 201 to adapt to the length.

[0057] Both the upper moving plate 2 and the lower moving plate 201 have an arc-shaped block 3 fixedly connected to their inner sides. The arc-shaped block 3 is in the shape of a quarter-circle. Both ends of the arc-shaped block 3 have beveled corners. The center of the concave lever 104 has a circular opening. A disc 301 is rotatably connected inside the circular opening. A rotating block 302 is fixedly connected to the outer end of the disc 301. The rotating block 302 has the same shape as the arc-shaped block 3 and the beveled corners of the two are matched. The farthest distance between the upper moving plate 2 or the lower moving plate 201 and the concave lever 104 is equal to the thickness of the arc-shaped block 3. When the upper moving plate 2 or the lower moving plate 201 is in contact with the concave lever 104, the arc-shaped block 3 extends into the circular opening and contacts the disc 301. The axes of the arc-shaped block 3, the rotating block 302 and the disc 301 coincide.

[0058] Preferably, when it is necessary to drive the upper moving plate 2 and the lower moving plate 201 to move alternately, a disk 301 is provided. By rotating the disk 301, the rotary block 302 is driven to move in a ring. Since the axes of the arc block 3, the rotary block 302 and the disk 301 coincide, when the rotary block 302 contacts the upper arc block 3, their inclined surfaces match, so that the rotary block 302 pushes the arc block 3 along the inclined surface, which can push the upper moving plate 2 to move away from the concave lever 104. At the same time, the connecting block 207 swings, so that the lower moving plate 201 automatically contacts the concave lever 104 alternately, thus completing the alternating movement.

[0059] Specifically, since both the arc block 3 and the rotating block 302 are quarter-circular, when the rotating block 302 is in the middle of the upper and lower arc blocks 3, it will not come into contact with the two arc blocks 3. When the disc 301 rotates 180 degrees, it can push only one of the arc blocks 3 individually.

[0060] A square opening 4 extends through the middle of the concave lever 104. Slider 401 is slidably fitted inside the upper and lower square openings 4. A spring telescopic rod 402 is provided at one end of the slider 401. The sliding directions of the upper and lower sliders 401 are opposite. A straight tooth groove is provided inside the slider 401. A gear 303 is provided inside the disc 301. The gear 303 meshes with the straight tooth groove. A push block 403 is fixedly connected to one end of the slider 401. The push block 403 is positioned corresponding to the moving block 103. The moving block 103 pushes the push block 403 to move.

[0061] Preferably, a gear 303 is provided that meshes with a straight tooth groove. When the upper and lower pairs of sliders 401 move relative to each other, the gear 303 is driven to rotate 180 degrees, thereby driving the upper moving plate 2 or the lower moving plate 201 to move alternately.

[0062] Specifically, when the slider 401 needs to be moved, a push block 403 is provided, and the push block 403 extends to the surface of the bidirectional threaded rod 901. The two are in clearance fit. When the moving block 103 moves, it drives a pair of clamping plates 1 to move relative to each other. When the solar panel body 6 is bent, the moving blocks 103 on both sides move to contact the push block 403. The push block 403 is pushed, which makes the slider 401 move relative to each other, thereby driving the gear 303 to rotate 180 degrees, so that the upper moving plate 2 and the lower moving plate 201 move alternately and automatically complete the switching. That is to say, the clamping plates 1 can be driven to move relative to each other to perform the bending detection of the solar panel body 6 by rotating the bidirectional threaded rod 901. At the same time, the upper or lower brake block 202 is automatically switched to extend, so as to prepare for the next bending test in advance, which facilitates the next bending test in the opposite direction. The degree of automation is high, and no additional drive components or control programs are required for control, saving costs and stably realizing the continuous upward and downward bending test of the solar panel body 6. It is highly practical.

[0063] When the moving block 103 pushes the push block 403 to move, thereby achieving the alternating extension of the upper and lower brake blocks 202, the upper brake block 202 extends, and the clamping plate 1 completes the bending test of the battery panel body 6. During the reset process, the upper limit rod 110 will contact the alternating brake block 202. However, the battery panel body 6 has not yet been reset to a horizontal state, so the clamping plate 1 is still in an angle deflection, causing the limit rod 110 to also be in an inclined state. This causes the upper limit rod 110 to contact the brake block 202 in an inclined state. Although the brake block 202 will still restrict the upper limit rod 110, the two ends of the battery panel body 6 can be displaced accordingly within the clamping plate 1 to adapt, so that the limit rod 110 eventually passes through the brake block 202 and completes the reset work. Then the clamping plate 1 moves closer again, so that the upper limit rod 110 contacts the brake block 202 and is restricted by it, thereby causing the clamping plate 1 to flip in the opposite direction for the bending test.

[0064] A rotating shaft 304 is fixedly connected to the center of the disc 301. Several adapting grooves are opened on the outer side of the rotating shaft 304. A spring telescopic rod 2 is installed in the adapting groove. An arc-shaped locking block 305 is installed at one end of the spring telescopic rod 2. An annular inclined groove is opened on the inner side of the gear 303. The gear 303 is rotatably connected to the disc 301. The arc-shaped locking block 305 is adapted to the annular inclined groove. The annular inclined groove restricts the arc-shaped locking block 305 from rotating in one direction. There is friction between the disc 301 and the circular opening.

[0065] Preferably, after the slider 401 moves and drives the gear 303 to rotate, the slider 401 resets under the action of the spring telescopic rod 402, which causes the gear 303 to also reset and rotate, causing the rotary block 302 to return to its original position and be unable to drive the next alternating movement. Therefore, an arc-shaped locking block 305 and an annular inclined groove are provided, which are compatible. When the slider 401 moves and drives the gear 303 to rotate 180 degrees, the rotation of the gear 303 generates a thrust on the straight surface of the arc-shaped locking block 305, thereby pushing the arc-shaped locking block 305 and the rotating shaft 304 to rotate synchronously, so that the disc can rotate. Rotating 301 and 302 drives the upper moving plate 2 and the lower moving plate 201 to move alternately. When the slider 401 is reset, the friction between the disc 301 and the circular opening prevents the disc 301 and the rotating shaft 304 from rotating easily. When the gear 303 rotates in the opposite direction, the thrust acts on the arc surface of the arc-shaped locking block 305, forcing the arc-shaped locking block 305 to retract into the adaptation groove, thus fixing the disc 301 and the rotating shaft 304. The gear 303 can rotate alone to reset the slider 401 without affecting the position of the 302. It is highly practical and has a high degree of automation.

[0066] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0067] The above provides a detailed description of the quality testing equipment and methods for photovoltaic modules provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A quality testing device for photovoltaic modules, comprising a square support (9) and a clamping plate (1), characterized in that: The clamping plate (1) is provided with a pair of clamping plates. A U-shaped limiting groove (101) is provided on one side of the clamping plate (1). The U-shaped limiting groove (101) is used to accommodate one end of the battery panel body (6). A pair of rotating disks (102) are fixedly connected to both ends of the clamping plate (1). A moving block (103) is rotatably connected to the outer side of the rotating disk (102). A pair of concave levers (104) are fixedly connected to the inner side of the square bracket (9). The moving block (103) slides in cooperation with the inner side of the concave lever (104). The rotating disk (102) drives the clamping plate (1) to adjust the angle upward or downward slightly. The moving block (103) drives the pair of clamping plates (1) to move closer to each other to test the bending strength performance of the battery panel body (6). One end of the first moving block (103) is fixedly connected to the second moving block (105). The inner side of the second moving block (105) is rotatably connected to the second rotating disk (106). The inner side of the second rotating disk (106) is rotatably connected to a pair of limiting rollers (107). One end of the first rotating disk (102) is fixedly connected to the connecting plate (108). The inner side of the pair of connecting plates (108) is rotatably connected to the swing roller (109). In the initial state, the pair of limiting rollers (107) are distributed on the upper and lower sides of the swing roller (109) and the clamping plate (1) is parallel to the horizontal line. A torsion spring is provided at the rotatable connection between the second rotating disk (106) and the second moving block (105). The torsion spring is used to reset the second rotating disk (106).

2. The quality testing equipment for photovoltaic modules according to claim 1, characterized in that: The inner side of the square bracket (9) is rotatably connected to a pair of bidirectional threaded rods (901). The bidirectional threaded rods (901) are set on the inner side of the concave lever (104) and parallel to it. A connecting rod is set on the middle side of the bidirectional threaded rods (901). The surface of the bidirectional threaded rods (901) is provided with external threads of opposite directions and are respectively set on both sides of the connecting rod. The bidirectional threaded rods (901) pass through the first moving block (103) and the second moving block (105) and are threadedly connected to them. The bidirectional threaded rods (901) are driven to rotate by a motor assembly.

3. The quality testing equipment for photovoltaic modules according to claim 1, characterized in that: Limiting rods (110) are fixedly connected to the upper and lower ends of the rotating disk 2 (106). Several guide telescopic columns (902) are provided on the inner ends of the square bracket (9). An upper moving plate (2) and a lower moving plate (201) are provided on the inner side of the several guide telescopic columns (902). A pair of brake blocks (202) are fixedly connected to the upper end of the upper moving plate (2). Similarly, a pair of brake blocks (202) are fixedly connected to the lower end of the lower moving plate (201). The brake blocks (202) slide with the concave lever (104). The upper moving plate (2) and the lower moving plate (201) move relative to each other and alternately contact the concave lever (104). When the upper moving plate (2) or the lower moving plate (201) contacts the concave lever (104), the brake blocks (202) extend to the inner side of the concave lever (104).

4. The quality testing equipment for photovoltaic modules according to claim 3, characterized in that: A pair of triangular plates (203) are fixedly connected to the outer end of the upper moving plate (2), and an upper connecting rod (204) is fixedly connected between the pair of triangular plates (203). Similarly, a lower connecting rod (205) is provided at the outer end of the lower moving plate (201). A central connecting rod (206) is provided between the upper connecting rod (204) and the lower connecting rod (205). A pair of connecting blocks (207) are provided on the middle side of the central connecting rod (206). The upper and lower ends of the connecting blocks (207) are rotatably connected to the upper connecting rod (204) and the lower connecting rod (205) respectively. Fixed blocks (208) are rotatably connected to both ends of the central connecting rod (206). The fixed blocks (208) are fixedly connected to the square bracket (9).

5. The quality testing equipment for photovoltaic modules according to claim 4, characterized in that: The connecting block (207) is divided into three movable parts: upper, middle and lower, which are rotatably connected to the upper connecting rod (204), the central connecting rod (206) and the lower connecting rod (205) respectively. The three parts of the connecting block (207) are connected to each other by a guide telescopic rod.

6. The quality testing equipment for photovoltaic modules according to claim 4, characterized in that: Both the upper moving plate (2) and the lower moving plate (201) are fixedly connected to an arc-shaped block (3). The arc-shaped block (3) is in the shape of a quarter-circle. Both ends of the arc-shaped block (3) are chamfered. The center of the concave lever (104) is provided with a circular opening. A disc (301) is rotatably connected inside the circular opening. A rotating block (302) is fixedly connected to the outer end of the disc (301). The rotating block (302) is shaped like an arc. The blocks (3) are identical and their chamfers are matched. The farthest distance between the upper moving plate (2) or the lower moving plate (201) and the concave lever (104) is equal to the thickness of the arc block (3). When the upper moving plate (2) or the lower moving plate (201) is in contact with the concave lever (104), the arc block (3) extends into the round opening and contacts the disc (301). The axes of the arc block (3), the rotating block (302) and the disc (301) coincide.

7. The quality testing equipment for photovoltaic modules according to claim 6, characterized in that: The concave lever (104) has a square opening (4) extending through the middle side. Slider (401) is slidably fitted inside the upper and lower square openings (4). A spring telescopic rod (402) is provided at one end of the slider (401). The sliding directions of the upper and lower sliders (401) are opposite. A straight tooth groove is provided inside the slider (401). A gear (303) is provided inside the disc (301). The gear (303) meshes with the straight tooth groove. A push block (403) is fixedly connected to one end of the slider (401). The push block (403) is positioned corresponding to the moving block (103). The moving block (103) pushes the push block (403) to move.

8. The quality testing equipment for photovoltaic modules according to claim 7, characterized in that: A rotating shaft (304) is fixedly connected to the center of the disc (301). Several adaptation grooves are provided on the outer side of the rotating shaft (304). A spring telescopic rod II is provided in the adaptation groove. An arc-shaped locking block (305) is provided at one end of the spring telescopic rod II. An annular inclined groove is provided on the inner side of the gear (303). The gear (303) is rotatably connected to the disc (301). The arc-shaped locking block (305) is adapted to the annular inclined groove. The annular inclined groove restricts the arc-shaped locking block (305) from rotating in one direction. There is friction between the disc (301) and the circular opening.

9. The test method for the quality testing equipment for photovoltaic modules according to claim 1, characterized in that... Includes the following steps: S1. The two moving blocks (103) on both sides drive a pair of clamps (1) to move closer to each other until the pair of clamps (1) are stuck at both ends of the battery panel body (6). S2. By rotating the two sides of the disc (102) to drive a pair of clamps (1) to flip upward synchronously, the angle of the two ends of the battery panel body (6) is finely adjusted. Then, the pair of clamps (1) move closer to each other, so that the battery panel body (6) is driven to bend upward to test the bending strength performance. S3. Then, the pair of clamps (1) are reset and moved, so that the battery panel body (6) returns to a horizontal state. Then, similarly, the pair of clamps (1) are driven to flip down synchronously by the rotating disks (102) on both sides, so that the clamps (1) drive the battery panel body (6) to bend down for testing.

Images