A device for detecting the thickness of EVA layer in solar photovoltaic glass panels

Abstract

This invention belongs to the field of EVA layer thickness testing technology for solar photovoltaic glass panels, specifically relating to a device for testing the EVA layer thickness of solar photovoltaic glass panels. The device includes an EVA layer thickness measuring instrument, comprising a base, a limiting plate, four support columns, and a testing mechanism. The testing mechanism includes a connecting block, a push-pull rod, a matching block, two guide rods, a chassis, and a measuring rod. The limiting plate is fixedly installed on the upper left side of the base, and the four support columns are all fixedly installed on the upper part of the base and evenly distributed. The EVA layer of the solar photovoltaic glass panel is placed above the four support columns. The connecting block is fixedly installed on the upper right side of the base. This device solves the problems of poor detection accuracy, high overall equipment cost, and poor stability in the current testing of EVA layer thickness of solar photovoltaic glass panels.

Description

Technical Field

[0001] This invention belongs to the field of EVA layer thickness detection technology for solar photovoltaic glass panels, and specifically relates to a device for detecting the EVA layer thickness of solar photovoltaic glass panels. Background Technology

[0002] The EVA layer on a solar photovoltaic glass panel is a type of encapsulating film, which mainly serves to bond and protect the glass. During the production of solar photovoltaic glass panels, the thickness of the EVA layer needs to be tested to ensure production quality.

[0003] Currently, most testing equipment on the market uses electronic devices. These electronic components are prone to damage, expensive, and have relatively high maintenance costs. Furthermore, the stability of the testing process cannot be guaranteed, leading to inaccurate thickness measurement data. This phenomenon has become a problem that urgently needs to be solved by those in the field. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting the thickness of the EVA layer in a solar photovoltaic glass panel, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for detecting the thickness of the EVA layer of a solar photovoltaic glass panel, comprising an EVA layer thickness detector, the EVA layer thickness detector comprising a base, a limiting plate, four support columns, and a detection mechanism; the detection mechanism comprising a connecting block, a push-pull rod, a matching block, two guide rods, a chassis, and a measuring rod; the limiting plate is fixedly installed on the upper left side of the base, and the four support columns are all fixedly installed on the upper part of the base and are evenly distributed, the EVA layer of the solar photovoltaic glass panel is placed on the upper part of the four support columns, and the connecting... The block is fixedly installed on the upper right side of the base, and a sliding hole is provided in the middle. The push-pull rod is slidably connected in the sliding hole, and the matching block is fixedly installed on the left end of the push-pull rod. The inner left side of the matching block is provided with a countersunk hole, and the right side is provided with a threaded hole. The left guide rod is slidably connected in the countersunk hole, and the upper end of the right guide rod is threaded and threadedly connected in the threaded hole. The chassis bearing is installed at the bottom end of the right guide rod. The measuring rod is slidably connected in the interior of the chassis, and its upper end is in contact with the bottom end of the left guide rod, and both are arc-shaped. The outer ring of the left guide rod and the measuring rod are provided with scale.

[0006] The present invention further illustrates that a piston is slidably connected to the inner wall of the countersunk hole, the piston is fixedly installed on the outer side of the left guide rod, a limiting block 1 is sleeved on the bottom outer side of the left guide rod, a spring 3 is provided between the limiting block 1 and the piston, a limiting block 2 is fixed on the outer side of the measuring rod, and a spring 2 is provided between the bottom of the limiting block 2 and the upper surface of the chassis, and a spring 1 is fixed between the top of the piston and the top of the inner wall of the countersunk hole.

[0007] The present invention further illustrates that an embedded disk is fixed to the outer side of the guide rod on the right side. The embedded disk is trapezoidal in shape, and a trapezoidal groove is provided inside the limiting block one. The embedded disk is embedded in the trapezoidal groove.

[0008] The present invention further illustrates that the space between the upper surface of the piston and the inner wall of the counterbore is filled with magnetorheological fluid, the interior of the left guide rod is hollow and made of transparent glass, and a liquid hole is provided in the middle of the left guide rod, the liquid hole being located between the upper surface of the piston and the inner wall of the counterbore.

[0009] The present invention further illustrates that the embedded disk includes two arc-shaped trapezoidal blocks, the guide rod on the right side has a hole inside, a rotating rod is slidably connected inside the hole, the upper end of the rotating rod extends out of the guide rod, and an arc-shaped block is fixed at both the front and rear of the bottom end of the rotating rod.

[0010] The present invention further illustrates that the bottom left and right sides of the guide rod on the right side are provided with sliding grooves, and arc-shaped blocks two are slidably connected in the sliding grooves. The two arc-shaped blocks two are respectively fixedly installed on the inner side of the two arc-shaped trapezoidal blocks. After the rotating rod rotates, the arc-shaped block one and the arc-shaped block two come into contact with each other. Two connecting rods are movably connected between the two arc-shaped trapezoidal blocks.

[0011] The present invention further illustrates that a quarter of the rotating rod is magnetic, and initially faces to the right, and after the rotating rod rotates, it faces to the left.

[0012] The present invention further illustrates that the detection mechanism is a detachable assembly.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0014] This invention accurately measures the thickness of the EVA layer in a solar photovoltaic glass panel by adding the scale markings of the left guide rod extending from the mounting block and the scale markings of the measuring rod submerged in the chassis. The operation is convenient and quick, and it is highly efficient for large-scale measurements.

[0015] Furthermore, it aligns the contact portion between the measuring rod and the left-end guide rod with the center of the EVA layer of the solar photovoltaic glass panel, thereby facilitating rapid measurement of the EVA layer thickness of the solar photovoltaic glass panel. It is suitable for measuring EVA layers of solar photovoltaic glass panels of different thicknesses and has a wide range of applications. A single detection device can measure EVA layers of solar photovoltaic glass panels of different thicknesses.

[0016] After measuring the EVA layer of solar photovoltaic glass panels of different thicknesses multiple times, the edge of the arc-shaped trapezoidal block is further inserted into the trapezoidal groove of the limiting block one, so that the embedded plate and the limiting block one fit more closely. During the thickness measurement process, when the measurement speed is too fast, the piston moves too fast and the spring three jumps. If there is a gap between the embedded plate and the limiting block one at this time, it is easy to cause the spring one and spring three to be unstable and the measurement data to be inaccurate. This ensures the stability and accuracy of the measurement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the detection mechanism of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the component of the present invention;

[0020] Figure 4 This is a schematic diagram of the liquid hole opening position of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the right guide rod of the present invention;

[0022] Figure 6 This is a front view of the embedded disk depth limiting block one of the present invention;

[0023] Figure 7 This is a top view of the embedded disk depth limiting block one of the present invention;

[0024] Figure 8 This is a schematic diagram showing the changes in the magnetorheological fluid after the magnetic part of the rotating rod of the present invention is turned;

[0025] In the diagram: 1. Connecting block; 2. Push-pull rod; 3. Matching block; 31. Countersunk hole; 32. Threaded hole; 4. Guide rod; 41. Limiting block one; 411. Trapezoidal groove; 42. Spring one; 43. Liquid hole; 44. Spring three; 5. Base plate; 6. Measuring rod; 61. Limiting block two; 62. Spring two; 7. Arc-shaped trapezoidal block; 71. Connecting rod; 8. Hole; 81. Rotating rod. Detailed Implementation

[0026] Please see Figures 1-8 The present invention provides a technical solution: an EVA layer thickness detection device for solar photovoltaic glass panels, including an EVA layer thickness detector, which includes a base, a limiting plate, four support columns and a detection mechanism.

[0027] The testing mechanism includes a connecting block 1, a push-pull rod 2, a matching block 3, two guide rods 4, a chassis 5, and a measuring rod 6;

[0028] The limiting plate is fixedly installed on the upper left side of the base. Four support columns are fixedly installed on the upper part of the base and are evenly distributed. The solar photovoltaic glass EVA layer is placed on the upper part of the four support columns. The connecting block 1 is fixedly installed on the upper right side of the base and has a sliding hole in the middle. The push-pull rod 2 is slidably connected in the sliding hole. The matching block 3 is fixedly installed on the left end of the push-pull rod 2. The matching block 3 has a countersunk hole 31 on the left side and a threaded hole 32 on the right side. The left guide rod 4 is slidably connected in the countersunk hole 31. The upper end of the right guide rod 4 is threaded and threadedly connected in the threaded hole 32. The chassis 5 bearing is installed on the bottom end of the right guide rod 4. The measuring rod 6 is slidably connected in the interior of the chassis 5 and its upper end is in contact with the bottom end of the left guide rod 4. Both are arc-shaped. The outer ring of the left guide rod 4 and the measuring rod 6 are both marked with scale.

[0029] The EVA layer of the solar photovoltaic glass panel is placed on the support column. Then, the push-pull rod 2 is pushed, causing it to move the two guide rods 4 synchronously to the left via the mounting block 3. The guide rods 4, through the chassis 5, drive the measuring rod 6 to move synchronously to the left until the measuring rod 6 and the left guide rod 4 contact the right side of the solar photovoltaic glass panel EVA layer. This pushes the solar photovoltaic glass panel EVA layer so that its left side contacts the right side of the limiting plate, supporting the solar photovoltaic glass panel EVA layer. Then, the force between the measuring rod 6 and the guide rod 4 and the side of the solar photovoltaic glass panel EVA layer causes the measuring rod 6 to separate from the left guide rod 4, clamping the upper and lower surfaces of the solar photovoltaic glass panel EVA layer. The thickness of the solar photovoltaic glass panel EVA layer is accurately measured by adding the graduations of the left guide rod 4 extending out of the mounting block 3 and the graduations of the measuring rod 6 submerged in the chassis 5. The operation is convenient and quick, and highly efficient for large-scale measurements.

[0030] A piston 311 is slidably connected to the inner wall of the countersunk hole 31. The piston 311 is fixedly installed on the outer side of the left guide rod 4. A limit block 41 is sleeved on the bottom outer side of the left guide rod 4. A spring 44 is provided between the limit block 41 and the piston 311. A limit block 61 is fixed on the outer side of the measuring rod 6. A spring 62 is provided between the bottom of the limit block 61 and the upper surface of the chassis 5. A spring 42 is fixed between the top of the piston 311 and the top of the inner wall of the countersunk hole 31.

[0031] After pushing the push-pull rod 2, the measuring rod 6 contacts and presses against the side of the left guide rod 4 and the side of the solar photovoltaic glass EVA layer. The measuring rod 6 and the left guide rod 4 are subjected to downward and upward forces respectively. The measuring rod 6 is deformed by pressing the spring 62 through the limiting block 61, and the left guide rod 4 is deformed by pressing the spring 44 through the slider 311. When the measuring rod 6 and the left guide rod 4 clamp the solar photovoltaic glass EVA layer, the reaction force generated by the spring 44 and the spring 62 tightly presses the upper and lower surfaces of the solar photovoltaic glass EVA layer, thereby improving the thickness measurement accuracy. When the spring 44 is subjected to force, the piston 311 slides slightly along the inner wall of the counterbore 31, thereby squeezing the spring 44. This ensures that the left guide rod 4 exerts force on the upper surface of the solar photovoltaic glass EVA layer, and also allows the left guide rod 4 to move slightly upward, avoiding excessive force when the measuring rod 6 and the left guide rod 4 clamp the solar photovoltaic glass EVA layer to prevent damage to the solar photovoltaic glass EVA layer.

[0032] An embedded plate is fixed to the outside of the right guide rod 4. The embedded plate is trapezoidal in shape. A trapezoidal groove 411 is provided inside the limiting block 41. The embedded plate is embedded in the trapezoidal groove 411.

[0033] Example 1:

[0034] When measuring a thick EVA layer on a solar photovoltaic glass panel, the operator rotates the right guide rod 4 so that its threaded part rotates through the threaded hole 32. The right guide rod 4 moves up and down, which drives the limiting block 41 to move up and down synchronously through the embedded plate. The limiting block 41 presses the piston 311 through the spring 344, and the piston 311 drives the left guide rod 4 to move up and down. At the same time, the measuring rod 6 moves up and down synchronously, so that the contact part between the measuring rod 6 and the left guide rod 4 is aligned with the middle position of the EVA layer of the solar photovoltaic glass panel. This facilitates the rapid measurement of the EVA layer thickness of the solar photovoltaic glass panel. It is suitable for measuring EVA layers of solar photovoltaic glass panels of different thicknesses and has a wide range of applications. Different thicknesses of EVA layers of solar photovoltaic glass panels can be measured with one detection device.

[0035] Example 2:

[0036] When measuring EVA layers of solar photovoltaic glass panels of different thicknesses, as the number of EVA layers measured increases, the elasticity of spring 42 decreases. The embedded disk drives the limiting block 41 to slide on the outside of the left guide rod 4, thereby causing spring 44 to apply force to piston 311. The force on spring 42 increases to ensure the force exerted by the left guide rod 4 on the upper surface of the EVA layer of the solar photovoltaic glass panel, thus maintaining high-precision measurement at all times. This also maximizes the utilization of spring 42, reduces the number of replacements, and lowers costs.

[0037] The space between the upper surface of piston 311 and the inner wall of counterbore 31 is filled with magnetorheological fluid. The interior of the left guide rod 4 is hollow and made of transparent glass. A liquid hole 43 is provided in the middle of the left guide rod 4. The liquid hole 43 is located between the upper surface of piston 311 and the inner wall of counterbore 31.

[0038] During the process of measuring the thickness of the EVA layer of the solar photovoltaic glass panel, the piston 311 moves upward. Due to the low fluidity of the magnetorheological fluid, the piston 311 slides slowly upward along the inner wall of the counterbore 31. The pressure of the left guide rod 4 on the upper surface of the EVA layer of the solar photovoltaic glass panel can be guaranteed, avoiding loosening that could affect the accuracy of the thickness measurement.

[0039] At the same time, when the piston 311 moves upward, it squeezes the magnetorheological fluid into the interior of the left guide rod 4 through the liquid hole 43. The fluid flows upward through the guide rod 4, which is made of transparent glass. The magnetorheological fluid is black, and the scale corresponding to the position of the upper surface after it stops flowing is clearly visible to the operator, thus enabling higher accuracy in the thickness measurement data.

[0040] The embedded plate includes two arc-shaped trapezoidal blocks 7. The inside of the right guide rod 4 is provided with a hole 8. A rotating rod 81 is slidably connected inside the hole 8. The upper end of the rotating rod 81 extends out of the guide rod 4. Arc-shaped blocks are fixed at the front and rear of the bottom end of the rotating rod 81.

[0041] The bottom left and right sides of the right guide rod 4 are provided with sliding grooves, and arc-shaped blocks 2 are slidably connected in the sliding grooves. The two arc-shaped blocks 2 are fixedly installed on the inner side of the two arc-shaped trapezoidal blocks 7 respectively. After the rotating rod 81 rotates, the arc-shaped block 1 and the arc-shaped block 2 come into contact with each other.

[0042] Two connecting rods 71 ​​are movably connected between the two arc-shaped trapezoidal blocks 7;

[0043] Example 3:

[0044] After repeatedly measuring the EVA layer of solar photovoltaic glass panels of different thicknesses, the positions of the measuring rod 6 and the left guide rod 4 are adjusted many times, and the right guide rod 4 is rotated many times. This results in more friction and higher wear between the embedded plate and the trapezoidal groove 411 of the limiting block 1 41. At this time, the operator rotates the rotating rod 81, which drives the two arc-shaped blocks 1 to rotate. Arc-shaped blocks 1 and 2 come into contact with each other and push arc-shaped blocks 2 to move outward along the slide groove. This causes the two arc-shaped trapezoidal blocks 7 to expand outward through the connecting rod 71. The edges of the arc-shaped trapezoidal blocks 7 penetrate deeper into the trapezoidal groove 411 of the limiting block 1 41, thus making the embedded plate and the limiting block 1 41 fit more closely. During the thickness measurement process, when the measurement speed is too fast, the piston 311 moves too fast, and the spring 3 44 jumps. If there is a gap between the embedded plate and the limiting block 1 41, the spring 1 42 and the spring 3 44 are prone to unstable force, resulting in inaccurate measurement data. This ensures the stability and accuracy of the measurement.

[0045] One-quarter of the rotating rod 81 is magnetic, and initially faces to the right. After rotating, the rotating rod 81 faces to the left.

[0046] Example 4:

[0047] After multiple measurements of EVA layers of solar photovoltaic glass panels with different thicknesses, the elasticity of spring 42 decreases, reducing the reaction force on piston 311. At this time, after the rotating rod 81 rotates, its magnetic part generates a magnetic force on the magnetorheological fluid filling the space between the upper surface of piston 311 and the inner wall of the counterbore 31. The magnetic force on the rheological fluid gradually increases, and its viscosity increases sharply, resulting in a larger supporting force on piston 311. The reaction force generated after the left guide rod 4 is displaced increases, and the force on the upper surface of the EVA layer of the solar photovoltaic glass panel is greatly enhanced. This can fully stabilize the EVA layer of the solar photovoltaic glass panel, avoid shaking during thickness measurement, and further improve measurement stability.

[0048] The testing facility is a modular, disassembled structure.

[0049] The detachable testing mechanism facilitates structural replacement, has a simple overall structure, is easy to assemble, and has low manufacturing costs.

Claims

1. A device for detecting the thickness of the EVA layer in a solar photovoltaic glass panel, comprising an EVA layer thickness measuring instrument, characterized in that: The EVA layer thickness measuring instrument includes a base, a limiting plate, four support columns, and a measuring mechanism. The detection mechanism includes a connecting block (1), a push-pull rod (2), a matching block (3), two guide rods (4), a chassis (5), and a measuring rod (6); The limiting plate is fixedly installed on the upper left side of the base. The four support columns are all fixedly installed on the upper part of the base and are evenly arranged. The solar photovoltaic glass EVA layer is placed on the upper part of the four support columns. The connecting block (1) is fixedly installed on the upper right side of the base and has a sliding hole in the middle. The push-pull rod (2) is slidably connected in the sliding hole and the matching block (3) is fixedly installed on the left end of the push-pull rod (2). The matching block (3) has a countersunk hole (31) on the left side and a threaded hole (32) on the right side. The guide rod (4) on the left side is slidably connected in the countersunk hole (31). The upper end of the guide rod (4) on the right side is threaded and threadedly connected in the threaded hole (32). The chassis (5) bearing is installed on the bottom end of the guide rod (4) on the right side. The measuring rod (6) is slidably connected in the interior of the chassis (5) and its upper end is in contact with the bottom end of the guide rod (4) on the left side and both are arc-shaped. The outer ring of the guide rod (4) on the left side and the measuring rod (6) are both set with scale. A piston (311) is slidably connected to the inner wall of the countersunk hole (31). The piston (311) is fixedly installed on the outside of the left guide rod (4). A limit block one (41) is sleeved on the bottom outside of the left guide rod (4). A spring three (44) is provided between the limit block one (41) and the piston (311). A limit block two (61) is fixed on the outside of the measuring rod (6). A spring two (62) is provided between the bottom of the limit block two (61) and the upper surface of the chassis (5). A spring one (42) is fixed between the top of the piston (311) and the top of the inner wall of the countersunk hole (31). An embedded plate is fixed on the outside of the guide rod (4) on the right side. The embedded plate is trapezoidal in shape. A trapezoidal groove (411) is provided inside the limiting block (41), and the embedded plate is embedded in the trapezoidal groove (411).

2. The EVA layer thickness detection device for a solar photovoltaic glass panel according to claim 1, characterized in that: The upper surface of the piston (311) is filled with magnetorheological fluid between the upper surface of the piston (311) and the inner wall of the counterbore (31). The guide rod (4) on the left side is hollow and made of transparent glass. A liquid hole (43) is provided in the middle of the guide rod (4) on the left side. The liquid hole (43) is located between the upper surface of the piston (311) and the inner wall of the counterbore (31).

3. The EVA layer thickness detection device for a solar photovoltaic glass panel according to claim 2, characterized in that: The embedded plate includes two arc-shaped trapezoidal blocks (7). The guide rod (4) on the right side has a hole (8) inside. A rotating rod (81) is slidably connected inside the hole (8). The upper end of the rotating rod (81) extends out of the guide rod (4). An arc-shaped block is fixed at both the front and back of the bottom end of the rotating rod (81).

4. The EVA layer thickness detection device for a solar photovoltaic glass panel according to claim 3, characterized in that: The bottom left and right sides of the guide rod (4) on the right side are provided with sliding grooves, and arc-shaped blocks two are slidably connected in the sliding grooves. The two arc-shaped blocks two are respectively fixedly installed on the inner side of the two arc-shaped trapezoidal blocks (7). After the rotating rod (81) rotates, the arc-shaped block one and the arc-shaped block two come into contact with each other. Two connecting rods (71) are movably connected between the two arc-shaped trapezoidal blocks (7).

5. The EVA layer thickness detection device for a solar photovoltaic glass panel according to claim 4, characterized in that: One-quarter of the rotating rod (81) is magnetic and initially faces to the right, but after the rotating rod (81) rotates, it faces to the left.

6. The EVA layer thickness detection device for a solar photovoltaic glass panel according to claim 5, characterized in that: The testing mechanism is a modular design that can be disassembled and assembled.

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