Quality test equipment for photovoltaic module and test method thereof

Abstract

The invention relates to the technical field of solar cells, in particular to quality test equipment for a photovoltaic module and a test method thereof.The quality test equipment comprises a square support and a pair of clamping plates, a U-shaped limiting groove is formed in one side of each clamping plate and used for containing one end of a cell panel body, and the other end of the cell panel body is provided with a clamping groove; the two ends of the clamping plate are fixedly connected with a pair of first rotating discs, the outer sides of the first rotating discs are rotationally connected with first moving blocks, the inner side of the square support is fixedly connected with a pair of concave levers, the first moving blocks are arranged on the inner sides of the concave levers in a sliding fit mode, and the first rotating discs drive the clamping plate to slightly adjust the angle upwards or downwards. The first moving block drives the pair of clamping plates to get close to each other, and the bending strength performance of the cell panel body is detected. According to the invention, the bidirectional detection function is conveniently and efficiently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cells, and particularly to a quality test device for photovoltaic modules and a test method thereof. Background Art

[0002] Photovoltaic modules, also called solar panels, are the most important components in a solar power generation system. A complete photovoltaic module is composed of dozens of solar cells, a junction box, and a frame. The structural processes of photovoltaic modules are divided into: 1. The half-cell structure process, that is, a single solar cell is cut into two pieces and then assembled into a photovoltaic module; 2. The shingled structure process, that is, a single solar cell is cut into five to six long strip-shaped small pieces, and then multiple small solar cells are assembled with their edges overlapping using conductive glue to form a photovoltaic module; 3. The flexible module process, also called the lightweight module, where the photovoltaic module can be bent, especially suitable for installation on curved roofs, etc. It is a solution that uses a flexible panel to replace the glass panel based on the shingled photovoltaic module process.

[0003] Due to the inherent flexibility of flexible modules, they can be used in more curved scenarios. However, due to the need to maintain a curved state, it is easy for cracks or breakages to occur in the battery panel itself during the bending process. Therefore, during the actual production process of flexible modules, it is necessary to test their flexural strength performance, and then detect the quality of their surface appearance to determine whether their quality is qualified. In existing detection work, most of the bending tests are carried out by robotic arms. Due to the inability to control the bending direction, the battery panel can only be bent in a single direction, which has great limitations.

[0004] Therefore, it is necessary to provide a quality test device for photovoltaic modules and a test method thereof, which can achieve the function of two-way detection. Summary of the Invention

[0005] The purpose of the present invention is to provide a quality test device for photovoltaic modules and a test method thereof to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A quality test device for photovoltaic modules and a test method thereof, comprising a square bracket and clamping plates. There are a pair of the clamping plates. One side of each clamping plate is provided with a U-shaped limiting groove for accommodating one end of the battery panel body. Both ends of the clamping plates are fixedly connected with a pair of rotating disks I. The outside of the rotating disk I is rotationally connected with a moving block I. The inner side of the square bracket is fixedly connected with a pair of concave levers. The moving block I is slidably fitted inside the concave levers. The rotating disk I drives the clamping plate to finely adjust the angle upward or downward, and the moving block I drives the pair of clamping plates to approach each other to perform a flexural strength performance test on the battery panel body.

[0007] In one embodiment, one end of the first moving block is fixedly connected to the second moving block. A second rotating disc is rotatably connected inside the second moving block. A pair of limiting rollers are rotatably connected inside the second rotating disc. One end of the first rotating disc is fixedly connected to a connecting plate. A swinging roller is rotatably connected inside a 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 swinging roller and the clamping plates are parallel to the horizontal line. A torsion spring member is arranged at the rotational connection between the second rotating disc and the second moving block, and the torsion spring member is used to reset the second rotating disc.

[0008] In one embodiment, a pair of bidirectional threaded rods are rotatably connected inside the square bracket. The bidirectional threaded rods are arranged inside the concave lever and are parallel to it. A connecting thin rod is arranged in the middle of the bidirectional threaded rods. The surfaces of the bidirectional threaded rods are provided with external threads with opposite helix directions and are respectively arranged on both sides of the connecting thin rod. The bidirectional threaded rods penetrate through the first moving block and the second moving block and are threadedly connected to them. The bidirectional threaded rods are driven to rotate by a motor assembly.

[0009] In one embodiment, limiting rods are fixedly connected to the upper and lower ends of the second rotating disc. A plurality of guiding telescopic columns are arranged at both ends inside the square bracket. An upper moving plate and a lower moving plate are arranged inside the plurality of guiding telescopic columns. A pair of braking blocks are fixedly connected to the upper end of the upper moving plate. Similarly, a pair of braking blocks are fixedly connected to the lower end of the lower moving plate. The braking blocks are slidably matched with the concave lever. The upper moving plate and the lower moving plate move relative to each other and alternately come into contact with the concave lever. When the upper moving plate or the lower moving plate comes into contact with the concave lever, the braking blocks extend to the inside of the concave lever.

[0010] In one embodiment, a pair of triangular plates are fixedly connected to the outer end of the upper moving plate. An upper connecting rod is fixedly connected between the pair of triangular plates. Similarly, a lower connecting rod is arranged at the outer end of the lower moving plate. A central connecting rod is arranged between the upper connecting rod and the lower connecting rod. A pair of connecting blocks are arranged in the middle of the central connecting rod. The upper and lower ends of the connecting blocks are respectively rotatably connected to the upper connecting rod and the lower connecting rod. The two ends of the central connecting rod are rotatably connected to fixed blocks, and the fixed blocks are fixedly connected to the square bracket.

[0011] In one embodiment, the connecting block is divided into three movable parts, namely upper, middle and lower parts, and is respectively rotatably connected to the upper connecting rod, the central connecting rod and the lower connecting rod. The three parts of the connecting block are connected by guiding telescopic rods.

[0012] In one embodiment, arc-shaped blocks are fixedly connected to the inner sides of the upper moving plate and the lower moving plate. The arc-shaped blocks are in the shape of a quarter circular ring. Chamfered corners are provided at both ends of the arc-shaped blocks. A circular opening is formed through the center of the concave lever. A disc is rotatably connected in the circular opening. A rotating block is fixedly connected to the outer end of the disc. The shape of the rotating block is the same as that of the arc-shaped block and the chamfered corners of the two are adapted to each other. The maximum distance between the upper moving plate or the lower moving plate and the concave lever is equal to the thickness of the arc-shaped block. When the upper moving plate or the lower moving plate is in close contact with the concave lever, the arc-shaped block extends into the circular opening and contacts the disc. The axes of the arc-shaped block, the rotating block and the disc coincide.

[0013] In one embodiment, a square opening is formed through the middle of the concave lever in the vertical direction. Sliders are slidably fitted to the inner sides of the upper and lower square openings. A first spring telescopic rod is provided at one end of each slider. The sliding directions of the upper and lower sliders are opposite. Straight tooth grooves are formed in the inner sides of the sliders. A gear is provided on the inner side of the disc. The gear meshes with the straight tooth grooves. A push block is fixedly connected to one end of the slider. The push block corresponds to the position of the first moving block. The first moving block pushes the push block to displace.

[0014] In one embodiment, a rotating shaft is fixedly connected to the center of the disc. A plurality of adaptation grooves are formed on the outer side of the rotating shaft. A second spring telescopic rod is provided in the adaptation groove. An arc-shaped clamping block is provided at one end of the second spring telescopic rod. An annular inclined groove is formed in the inner side of the gear. The gear is rotatably connected to the disc. The arc-shaped clamping block is adapted to the annular inclined groove. The annular inclined groove restricts the one-way rotation of the arc-shaped clamping block. There is friction between the disc and the circular opening.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, the first moving blocks on both sides drive a pair of clamping plates to move closer to each other along the concave lever until the pair of clamping plates are clamped and support the two ends of the battery panel body. Then, the pair of clamping plates are driven to flip upward synchronously by the rotating discs on both sides, so as to finely adjust the angles of the two ends of the battery panel body, thereby driving the central part of the battery panel body to bend upward. Then, in cooperation with the pair of clamping plates moving closer to each other, the battery panel body is continuously driven to increase the bending angle until the qualified standard of the detection is reached, and the test of the bending strength performance can be completed. Then, the pair of clamping plates move back to their original positions, so that the battery panel body returns to the horizontal state. Then, similarly, the pair of clamping plates are driven to flip downward synchronously by the rotating discs on both sides, so that the clamping plates drive the battery panel body to bend downward for detection, realizing two-way detection, and the detection effect is better and more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solutions and other beneficial effects of the present application will become obvious through the detailed description of the specific embodiments of the present application in combination with the accompanying drawings.

[0017] In the accompanying drawings: Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the front sectional schematic diagram of the present invention; Figure 3 is the side sectional schematic diagram of the present invention; Figure 4 is Figure 3 the partial enlarged schematic diagram of area B of Figure 5 is the partial sectional schematic diagram of the square bracket of the present invention; Figure 6 is the three-dimensional schematic diagram of the bidirectional threaded rod of the present invention; Figure 7 is Figure 2 the partial enlarged schematic diagram of area A of Figure 8 is the three-dimensional schematic diagram of the up and down moving plate of the present invention; Figure 9 is the three-dimensional schematic diagram of the gear of the present invention; Figure 10 is the three-dimensional schematic diagram of the concave lever of the present invention; Figure 11 is the partial sectional schematic diagram of the slider of the present invention; In the figure: 1. clamping plate; 101. U-shaped limiting groove; 102. rotating disc one; 103. moving block one; 104. concave lever; 105. moving block two; 106. rotating disc two; 107. limiting roller; 108. connecting plate; 109. swinging roller; 110. limiting rod; 2. upper moving plate; 201. lower moving plate; 202. braking block; 203. triangular plate; 204. upper connecting rod; 205. lower connecting rod; 206. central connecting rod; 207. connecting block; 208. fixed block; 3. arc-shaped block; 301. disc; 302. rotating block; 303. gear; 304. rotating shaft; 305. arc-shaped clamping block; 4. square opening; 401. slider; 402. spring telescopic rod one; 403. pushing block; 5. lifting platform; 501. electric telescopic rod; 6. battery panel body; 7. conveyor belt; 701. transport short roller; 702. transport long roller; 8. vision detection mechanism; 9. square bracket; 901. bidirectional threaded rod; 902. guiding telescopic column. Detailed implementation manners

[0018] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0019] Please refer to Figures 1-11 , the present invention provides a technical solution: a quality test device for photovoltaic modules and its test method, including a square bracket 9, clamping plates 1, bending parts, a lifting platform 5, a conveyor belt 7, and a visual inspection mechanism 8. There are a pair of clamping plates 1. One side of each clamping plate 1 is provided with a U-shaped limiting groove 101 for accommodating one end of the battery panel body 6. Both ends of the clamping plates 1 are fixedly connected with a pair of first rotating disks 102. The outer sides of the first rotating disks 102 are rotatably connected with first moving blocks 103. The inner sides of the square bracket 9 are fixedly connected with a pair of concave levers 104. The first moving blocks 103 are slidably fitted inside the concave levers 104. The first rotating disks 102 drive the clamping plates 1 to finely adjust the angle upward or downward, and the first moving blocks 103 drive the pair of clamping plates 1 to approach each other to perform a bending strength performance test on the battery panel body 6. The lifting platform 5 is provided as a concave plate to support the battery panel body 6 being fed. The lower end of the lifting platform 5 is provided with a number of electric telescopic rods 501. The electric telescopic rods 501 are arranged above the conveyor belt 7. The lifting platform 5 drives the battery panel body 6 after the test to move onto the conveyor belt 7. The visual inspection mechanism 8 is arranged above the conveyor belt 7 to perform an appearance inspection on the battery panel body 6.

[0020] First, the battery panel body 6 to be detected is manually placed above the lifting platform 5. Then, the first moving blocks 103 on both sides move along the concave levers 104 to drive the pair of clamping plates 1 to approach each other until the pair of clamping plates 1 are stuck and support both ends of the battery panel body 6. Then the lifting platform 5 descends away from the battery panel body 6 to avoid interference with subsequent bending tests. Then, the pair of clamping plates 1 are driven by the first rotating disks 102 on both sides to synchronously flip upward to finely adjust the angles at both ends of the battery panel body 6, so as to drive the central part of the battery panel body 6 to bend upward. Then, in cooperation with the pair of clamping plates 1 approaching each other, the battery panel body 6 is continuously driven to increase the bending angle until the qualified standard for detection is reached, and the bending strength performance test can be completed. Then a pair of clamping plates 1 move back to their original positions, causing the battery panel body 6 to return to a horizontal state. Then, similarly, a pair of clamping plates 1 are driven to flip down 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 inspection, realizing inspection in two directions, with better and more comprehensive inspection effects. After the inspection is completed, the pair of clamping plates 1 move away from each other, and the lifting platform 5 rises to pick up the battery panel body 6 again and bring it down to the upper side of the conveyor belt 7. The conveyor belt 7 includes conveying short rollers 701 and conveying long rollers 702. The distance between the two conveying short rollers 701 can accommodate the lifting platform 5, and the part of the battery panel body 6 extending outside the lifting platform 5 falls on the conveying short rollers 701. The conveying short rollers 701 can then transport the battery panel body 6, and the lifting platform 5 can rise and reset to support the next battery panel body 6. Then the conveyor belt 7 transports the inspected battery panel body 6 to the lower side of the visual inspection mechanism 8. The visual inspection mechanism 8 inspects the appearance of the battery panel body 6 (the visual inspection mechanism is a technology widely used in the mechanical field, so it is shown as a simple schematic diagram in the attached drawing). If its surface is intact, it means that the bending strength performance of the battery panel body 6 is qualified; otherwise, it is unqualified. Thus, the inspection work on the battery panel body 6 can be completed.

[0021] One end of the moving block 103 is fixedly connected to a moving block 105. The inner side of the moving block 105 is rotatably connected to a rotating disk 106. The inner side of the rotating disk 106 is rotatably connected to a pair of limiting rollers 107. One end of the rotating disk 102 is fixedly connected to a connecting plate 108. The inner sides of the pair of connecting plates 108 are rotatably connected to a swinging roller 109. Initially, the pair of limiting rollers 107 are distributed on the upper and lower sides of one side of the swinging roller 109 and the clamping plate 1 is parallel to the horizontal line. A torsion spring member is provided at the rotational connection between the rotating disk 106 and the moving block 105, and the torsion spring member is used to reset the rotating disk 106.

[0022] Preferably, a torsion spring member is provided such that the second rotating disk 106 controls a pair of limiting rollers 107 to be on the same vertical line in the initial state. Similarly, a torsion spring member is provided at the rotating connection of the first rotating disk 102 such that the clamping plate 1 is parallel to the horizontal line. When it is necessary to finely adjust the angles at both ends of the battery panel body 6, the second rotating disk 106 rotates correspondingly, driving a pair of limiting rollers 107 to rotate. The swinging roller 109 is arranged between the pair of limiting rollers 107. When the second rotating disk 106 rotates forward, the upper limiting roller 107 contacts the swinging roller 109 alone and pushes it. The swinging roller 109 receives a thrust from the upper oblique direction and rotates reversely with the axis of the first rotating disk 102 as the rotation center, thereby driving the first rotating disk 102 and the clamping plate 1 to rotate, and the angle of one end of the battery panel body 6 can be finely adjusted upward. Relatively, when the second rotating disk 106 rotates reversely, the lower limiting roller 107 contacts the swinging roller 109 alone and pushes it, so that one end of the battery panel body 6 is finely adjusted downward, and the two-way bending test of the battery panel body 6 can be realized.

[0023] 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 arranged inside the concave lever 104 and are parallel to it. A connecting thin rod is arranged in the middle of the bidirectional threaded rods 901. The surfaces of the bidirectional threaded rods 901 are provided with external threads with opposite helix directions and are respectively arranged on both sides of the connecting thin rod. The bidirectional threaded rods 901 penetrate 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.

[0024] Preferably, when it is necessary to drive a pair of clamping plates 1 to move relatively, the bidirectional threaded rods 901 are driven to rotate by a motor assembly. The external threads at both ends of the bidirectional threaded rods 901 have opposite helix directions and are threadedly connected to the first moving block 103 and the second moving block 105. When they rotate, the first moving block 103 and the second moving block 105 on both sides are driven to move, and the moving directions on both sides are opposite, thereby driving a pair of clamping plates 1 to move relatively.

[0025] Limiting rods 110 are fixedly connected to the upper and lower ends of the second rotating disk 106. A plurality of guiding telescopic columns 902 are arranged at both inner ends of the square bracket 9. An upper moving plate 2 and a lower moving plate 201 are arranged inside the plurality of guiding telescopic columns 902. A pair of braking blocks 202 are fixedly connected to the upper end of the upper moving plate 2. Similarly, a pair of braking blocks 202 are fixedly connected to the lower end of the lower moving plate 201. The braking blocks 202 are slidably matched with the concave lever 104. The upper moving plate 2 and the lower moving plate 201 move relatively 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 braking blocks 202 extend to the inside of the concave lever 104.

[0026] Preferably, when it is necessary to control the second rotating disk 106 to rotate forward and backward, a limiting rod 110 and a brake block 202 are provided. Specifically, when it is necessary to control the second rotating disk 106 to rotate forward, 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 inner side of the concave lever 104. Then, a pair of clamping plates 1 displace along the concave lever 104, so that the lower brake block 202 contacts the lower limiting rod 110 (as Figure 4 shown), so that the lower limiting rod 110 is restricted, and as the second rotating disk 106 moves followingly, the second rotating disk 106 rotates itself, which can drive the clamping plate 1 to deflect upward for fine adjustment of the angle. And during the process that the second rotating disk 106 is driven to move and rotate, the lower limiting rod 110 inclines by a corresponding angle until it is restricted by the brake block 202, and the two clamping plates 1 can further perform a bending test on the clamping plate 1 with the adjusted angle. That is to say, the angle adjustment of the clamping plate 1 does not require an additional driving component for driving. Only by the displacement of the first moving block 103, the clamping plate 1 can perform an automatic flip of the angle while relatively displacing, so as to realize the bending test on the battery panel body 6. And when it is necessary to adjust the rotation direction, control the lower moving plate 201 to reset, and the upper moving plate 2 moves to contact the concave lever 104, which can drive the clamping plate 1 to flip downward to adjust the angle and realize the stable control of the test direction.

[0027] 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 in the middle side of the central connecting rod 206. The upper and lower ends of the connecting block 207 are respectively rotatably connected to the upper connecting rod 204 and the lower connecting rod 205. The two ends of the central connecting rod 206 are rotatably connected to fixed blocks 208, and the fixed blocks 208 are fixedly connected to the square bracket 9.

[0028] Preferably, since the upper moving plate 2 and the lower moving plate 201 can only move relatively 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 swings reciprocally with the central connecting rod 206 as the rotation center, so that the upper moving plate 2 and the lower moving plate 201 alternately contact the concave lever 104, thereby stably controlling the flipping direction of the clamping plate 1.

[0029] The connecting block 207 is divided into three movable parts, namely the upper, middle and lower parts, and is respectively rotatably connected to the upper connecting rod 204, the central connecting rod 206 and the lower connecting rod 205. The three parts of the connecting block 207 are connected by a guiding telescopic rod.

[0030] Preferably, the connecting block 207 is set to have three movable parts, and all three are connected by guiding telescopic rods (as Figure 7 shown), so that when the connecting block 207 controls the alternating movement of the upper moving plate 2 and the lower moving plate 201, length adaptation is performed.

[0031] Arc-shaped blocks 3 are fixedly connected to the inner sides of the upper moving plate 2 and the lower moving plate 201. The arc-shaped blocks 3 are in the shape of a quarter circle ring. Chamfers are provided at both ends of the arc-shaped blocks 3. A circular opening is penetrated through the center of the concave lever 104. A disc 301 is rotatably connected in the circular opening. A rotary block 302 is fixedly connected to the outer end of the disc 301. The shape of the rotary block 302 is the same as that of the arc-shaped block 3 and their chamfers are adapted to each other. The maximum 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 close 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 rotary block 302, and the disc 301 coincide.

[0032] Preferably, when it is necessary to drive the upper moving plate 2 and the lower moving plate 201 to move alternately, a disc 301 is provided. By rotating the disc 301, the rotary block 302 is driven to perform a circular movement. Since the axes of the arc-shaped block 3, the rotary block 302, and the disc 301 coincide, when the rotary block 302 contacts the upper arc-shaped block 3, their inclined surfaces are adapted to each other, so that the rotary block 302 pushes the arc-shaped block 3 along the inclined surface, and thus the upper moving plate 2 can be pushed 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, and the alternating movement can be completed; Specifically, since both the arc-shaped block 3 and the rotary block 302 are in the shape of a quarter circle ring, when the rotary block 302 is in the middle of the upper and lower arc-shaped blocks 3, it will not contact the two arc-shaped blocks 3. When the disc 301 rotates 180 degrees, only one of the arc-shaped blocks 3 can be pushed individually.

[0033] A square opening 4 is penetrated through the middle of the concave lever 104 from top to bottom. Sliders 401 are slidably fitted to the inner sides of the upper and lower square openings 4. One end of each slider 4 belongs to a spring telescopic rod 402. The sliding directions of the upper and lower sliders 401 are opposite. Straight tooth grooves are provided on the inner sides of the sliders 401. A gear 303 is provided on the inner side of the disc 301. The gear 303 meshes with the straight tooth grooves. One end of each slider 401 is fixedly connected to a push block 403. The push block 403 corresponds to the position of the first moving block 103. The first moving block 103 pushes the push block 403 to displace.

[0034] Preferably, the gear 303 is provided to mesh with the straight tooth grooves. When the upper and lower pairs of sliders 401 move relative to each other, the gear 303 is driven to rotate 180 degrees, and thus the upper moving plate 2 or the lower moving plate 201 can be driven to move alternately; Specifically, when it is necessary to drive the slider 401 to displace, a push block 403 is provided, and the push block 403 extends to the surface of the bidirectional threaded rod 901, and there is a clearance fit between the two. When the first moving block 103 moves to drive the pair of clamping plates 1 to move relatively and perform a bending test on the battery panel body 6, the two first moving blocks 103 on both sides move to contact the push block 403, and the push block 403 is pushed, so that the slider 401 can move relatively, thereby driving the gear 303 to rotate 180 degrees, causing the upper moving plate 2 and the lower moving plate 201 to move alternately, and automatically completing the switching. That is to say, only by rotating the bidirectional threaded rod 901, the clamping plates 1 can be driven to move relatively to perform a bending test on the battery panel body 6. At the same time, the brake blocks 202 on the upper side or the lower side are automatically switched to protrude, so as to make preparations in advance for the next bending test, which is convenient for performing a bending test in the reverse direction next time. The degree of automation is high, and no additional driving components or control programs are required for control, saving costs, and stably realizing continuous bending tests of the battery panel body 6 upward and downward, with strong practicability; Since when the first moving block 103 pushes the push block 403 to move, thereby realizing the alternate protrusion of the brake blocks 202 on the upper and lower sides, at this time, the upper brake block 202 protrudes, and after the clamping plates 1 complete the bending test on the battery panel body 6 and during the reset process, at this time, the upper limiting rod 110 will contact the brake block 202 after alternation. However, at this time, the battery panel body 6 has not been reset to the horizontal state, so that the clamping plates 1 are still in an angular deflection state, resulting in the limiting rod 110 also being in an inclined state, so that the upper limiting rod 110 contacts the brake block 202 in an inclined state. Although the brake block 202 will still limit the upper limiting rod 110, the two ends of the battery panel body 6 can displace correspondingly within the clamping plates 1 to adapt, so that the limiting rod 110 finally passes through the brake block 202 to complete the reset work. Then, when the clamping plates 1 approach again, the upper limiting rod 110 can contact the brake block 202 and be restricted by it, so that the clamping plates 1 are flipped in the reverse direction to perform a bending test.

[0035] A rotating shaft 304 is fixedly connected to the center of the disc 301. A plurality of adaptation grooves are provided on the outer side of the rotating shaft 304. A second spring telescopic rod is arranged in the adaptation groove. One end of the second spring telescopic rod is provided with an arc-shaped clamping block 305. 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 clamping block 305 is adapted to the annular inclined groove. The annular inclined groove restricts the single-direction rotation of the arc-shaped clamping block 305, and there is a frictional force between the disc 301 and the circular opening.

[0036] Preferably, after the slider 401 moves to drive the gear 303 to rotate, the slider 401 is reset under the action of the first spring telescopic rod 402, which will drive the gear 303 to rotate back, causing the rotary block 302 to return to its original position and unable to drive the next alternating movement. Therefore, an arc-shaped clamping block 305 and an annular inclined groove are provided, which are adapted to each other. When the slider 401 moves to drive the gear 303 to rotate 180 degrees, at this time, the gear 303 rotates to generate a thrust on the straight surface of the arc-shaped clamping block 305, thereby pushing the arc-shaped clamping block 305 and the rotating shaft 304 to rotate synchronously, so that the disc 301 and the rotary block 302 can rotate to drive the upper moving plate 2 and the lower moving plate 201 to alternately displace. When the slider 401 is reset, at this time, due to the friction between the disc 301 and the circular opening, the disc 301 and the rotating shaft 304 will not rotate easily. When the gear 303 rotates in the reverse direction, the thrust acts on the arc surface of the arc-shaped clamping block 305, forcing the arc-shaped clamping block 305 to retract into the adaptation groove, so that the disc 301 and the rotating shaft 304 can be fixed, and the gear 303 rotates alone, so that the slider 401 can be reset without affecting the position of the rotary block 302, with strong practicability and high automation degree.

[0037] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, the communication inside two components, or the interaction relationship between two components. For those of ordinary skill in the art, the meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] The quality test equipment for photovoltaic modules and its test method provided by the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A quality test device for photovoltaic modules, comprising a square bracket (9) and clamping plates (1), characterized in that: A pair of said clamping plates (1) are provided. One side of each clamping plate (1) is provided with a U-shaped limiting groove (101) for accommodating one end of the battery panel body (6). Both ends of the clamping plate (1) are fixedly connected with a pair of first rotating discs (102). The outside of the first rotating disc (102) is rotatably connected with a first moving block (103). The inside of the square bracket (9) is fixedly connected with a pair of concave levers (104). The first moving block (103) is slidably fitted inside the concave lever (104). The first rotating disc (102) drives the clamping plate (1) to finely adjust the angle up or down. The first moving block (103) drives the pair of clamping plates (1) to approach each other to perform a bending strength performance test on the battery panel body (6).

2. The quality test equipment for photovoltaic modules according to claim 1, characterized in that: One end of the first moving block (103) is fixedly connected with a second moving block (105). The inside of the second moving block (105) is rotatably connected with a second rotating disc (106). The inside of the second rotating disc (106) is rotatably connected with a pair of limiting rollers (107). One end of the first rotating disc (102) is fixedly connected with a connecting plate (108). The inside of the pair of connecting plates (108) is rotatably connected with a swinging roller (109). The pair of limiting rollers (107) are distributed on the upper and lower sides of one side of the swinging roller (109) in the initial state and the clamping plate (1) is parallel to the horizontal line. A torsion spring member is provided at the rotational connection of the second rotating disc (106) and the second moving block (105) for resetting the second rotating disc (106).

3. The quality test equipment for photovoltaic modules according to claim 2, wherein: A pair of bidirectional threaded rods (901) are rotatably connected to the inside of the square bracket (9). The bidirectional threaded rods (901) are arranged inside the concave levers (104) and are parallel to them. A connecting thin rod is provided in the middle of the bidirectional threaded rods (901). The surfaces of the bidirectional threaded rods (901) are provided with external threads with opposite helix directions and are respectively arranged on both sides of the connecting thin rod. The bidirectional threaded rods (901) penetrate 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.

4. The quality test equipment for photovoltaic modules according to claim 2, characterized in that: Limiting rods (110) are fixedly connected to the upper and lower ends of the second rotating disc (106). A plurality of guiding telescopic columns (902) are provided at both ends inside the square bracket (9). An upper moving plate (2) and a lower moving plate (201) are provided inside the plurality of guiding telescopic columns (902). A pair of braking blocks (202) are fixedly connected to the upper end of the upper moving plate (2). Similarly, a pair of braking blocks (202) are fixedly connected to the lower end of the lower moving plate (201). The braking blocks (202) are slidably fitted with the concave levers (104). The upper moving plate (2) and the lower moving plate (201) move relative to each other and alternately come into contact with the concave levers (104). When the upper moving plate (2) or the lower moving plate (201) comes into contact with the concave lever (104), the braking blocks (202) extend to the inside of the concave lever (104).

5. The quality test equipment for photovoltaic modules according to claim 4, characterized in that: A pair of triangular plates (203) are fixedly connected to the outer end of the upward 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 arranged at the outer end of the downward moving plate (201). A central connecting rod (206) is arranged between the upper connecting rod (204) and the lower connecting rod (205). A pair of connecting blocks (207) are arranged on the middle side of the central connecting rod (206). The upper and lower ends of the connecting block (207) are respectively rotatably connected to the upper connecting rod (204) and the lower connecting rod (205). The two ends of the central connecting rod (206) are rotatably connected to fixed blocks (208), and the fixed blocks (208) are fixedly connected to the square bracket (9).

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

7. The quality test equipment for photovoltaic modules according to claim 5, characterized in that: Arc-shaped blocks (3) are fixedly connected to the inner sides of the upward moving plate (2) and the downward moving plate (201). The arc-shaped blocks (3) are in a quarter circular ring shape. Oblique chamfers are provided at both ends of the arc-shaped blocks (3). A circular opening is formed through the center of the concave lever (104). A disc (301) is rotatably connected in the circular opening. A rotary block (302) is fixedly connected to the outer end of the disc (301). The shape of the rotary block (302) is the same as that of the arc-shaped block (3) and their oblique chamfers are adapted to each other. The maximum distance between the upward moving plate (2) or the downward moving plate (201) and the concave lever (104) is equal to the thickness of the arc-shaped block (3). When the upward moving plate (2) or the downward moving plate (201) is in close 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 rotary block (302) and the disc (301) coincide.

8. The quality test equipment for photovoltaic modules according to claim 7, characterized in that: A square opening (4) is formed through the middle side of the concave lever (104) from top to bottom. Sliders (401) are slidably fitted to the inner sides of the upper and lower square openings (4). One end of each slider (401) is provided with a spring telescopic rod one (402). The sliding directions of the upper and lower sliders (401) are opposite. A straight tooth groove is formed in the inner side of the slider (401). A gear (303) is arranged on the inner side of the disc (301). The gear (303) meshes with the straight tooth groove. One end of the slider (401) is fixedly connected to a push block (403). The push block (403) corresponds to the position of the moving block one (103), and the moving block one (103) pushes the push block (403) to displace.

9. The quality test equipment for photovoltaic modules according to claim 8, characterized in that: A rotating shaft (304) is fixedly connected to the center of the disc (301). A plurality of adaptation grooves are formed on the outer side of the rotating shaft (304). A second spring telescopic rod is arranged in the adaptation groove. One end of the second spring telescopic rod is provided with an arc-shaped clamping block (305). An annular inclined groove is formed on the inner side of the gear (303). The gear (303) is rotatably connected to the disc (301). The arc-shaped clamping block (305) is adapted to the annular inclined groove. The annular inclined groove restricts the one-way rotation of the arc-shaped clamping block (305). There is friction between the disc (301) and the circular opening.

10. The test method of the quality test equipment for photovoltaic modules according to claim 1, characterized in that It includes the following steps: S1. Drive a pair of clamping plates (1) to move closer to each other through the two side moving blocks one (103) until the pair of clamping plates (1) are stuck at both ends of the battery panel body (6). S2. Drive a pair of clamping plates (1) to synchronously turn upwards through the two side rotating discs one (102), so as to finely adjust the angles at both ends of the battery panel body (6). Then, in cooperation with the pair of clamping plates (1) moving closer to each other, the battery panel body (6) is driven to bend upwards for the bending strength performance test. S3. Then, the pair of clamping plates (1) move back to their original positions, so that the battery panel body (6) returns to the horizontal state. Then, similarly, drive a pair of clamping plates (1) to synchronously turn downwards through the two side rotating discs one (102), so that the clamping plates (1) drive the battery panel body (6) to bend downwards for the test.

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