Cutting equipment for photovoltaic module

Abstract

The utility model relates to cutting equipment for a photovoltaic module. The cutting equipment comprises a supporting plate, a pressing plate, a cutting device and an adjusting part. The supporting plate is used for bearing and fixing the horizontally placed photovoltaic module; the pressing plate is arranged above the supporting plate and is used for pressing the photovoltaic module downwards; the cutting device comprises a cutting line arranged between the supporting plate and the pressing plate, and the cutting line is used for cutting an adhesive layer in the photovoltaic module when the cutting device moves relative to the photovoltaic module; the adjusting part is connected with the cutting device and used for adjusting the height of the cutting line. According to the technical scheme, the adhesive layers of the photovoltaic modules with different thicknesses can be cut off through the cutting device, and the separation of the glass, the back plate and the battery piece is realized, so that when the glass of the photovoltaic modules with different thicknesses is recycled, various glass recycling equipment does not need to be arranged any more, and the recycling cost of the glass in the photovoltaic modules is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of photovoltaic modules, and in particular, to a cutting device for photovoltaic modules. Background Art

[0002] Photovoltaic modules are used to convert sunlight directly into electricity and are primarily used in the photovoltaic industry. PV modules are generally available in two types: single-glass and double-glass. Single-glass modules consist of a frame, glass, solar cells, a backsheet, and a glue layer. The solar cells are positioned between the glass and backsheet with a glue layer, and the frame is positioned on the outside. Double-glass modules consist of two layers of glass, solar cells, and a glue layer. The solar cells are bonded between the two layers of glass with a glue layer, and the frame is positioned on the outside.

[0003] The production of photovoltaic modules requires significant amounts of energy and raw materials, and recycling them can reduce energy waste and consumption. To recycle a photovoltaic module, the frame must first be disassembled to recover the frame, and then the glass from the module must be recovered through glass recycling equipment. In related art, a single glass recycling machine can only recycle glass from photovoltaic modules of one thickness. To recycle glass from modules of multiple thicknesses, multiple glass recycling machines are required, taking up space and increasing the cost of recycling the glass from the photovoltaic modules. Utility Model Content

[0004] The present disclosure aims to provide a cutting device for photovoltaic modules to solve the problem in the related art that a glass recycling device can only recycle glass on photovoltaic modules of one thickness.

[0005] In order to achieve the above objectives, the present disclosure provides a cutting device for photovoltaic modules, comprising:

[0006] Support plate, used to support and fix the flat photovoltaic modules;

[0007] A pressing plate, arranged above the supporting plate, for pressing the photovoltaic assembly downward;

[0008] a cutting device, comprising a cutting line disposed between the support plate and the pressing plate, the cutting line being used to cut the glue layer in the photovoltaic module when the cutting device moves relative to the photovoltaic module; and

[0009] An adjusting portion is connected to the cutting device and is used to adjust the height of the cutting line.

[0010] Optionally, the adjustment unit includes a first detection component, a second detection component and an adjustment component.

[0011] Wherein, the first detection component is used to detect the position and thickness of the adhesive layer;

[0012] The second detection component is used to detect the tension on the cutting line;

[0013] The adjusting component is electrically connected to the first detecting component and the second detecting component respectively, and is used to adjust the height of the cutting line.

[0014] Optionally, the first detection component includes an ultrasonic probe arranged on the pressure plate, and the surface of the ultrasonic probe facing the photovoltaic component is flush with the surface of the pressure plate facing the photovoltaic component, so that the ultrasonic probe can contact the photovoltaic component.

[0015] Optionally, the cutting line includes a first segment and a second segment that are staggered in a height direction, and the second detection component includes:

[0016] a first tension sensor connected to the first segment and configured to detect tension on the first segment;

[0017] The second tension sensor is connected to the second section and is used to detect the tension on the second section.

[0018] Optionally, the cutting device comprises:

[0019] A first pulley, a second pulley and a third pulley, wherein the first pulley and the second pulley are rotatably disposed on one side of the photovoltaic assembly, and the third pulley is rotatably disposed on the other side of the photovoltaic assembly, for reversing the cutting line.

[0020] The cutting line is respectively wound around the first pulley, the third pulley and the second pulley, the portion of the cutting line located between the first pulley and the third pulley is the first section, the portion of the cutting line located between the second pulley and the third pulley is the second section, and the third pulley is arranged to be inclined to the horizontal direction so that the first section and the second section are staggered in the height direction.

[0021] Optionally, the adjustment component includes:

[0022] a first telescopic rod extending in a height direction and connected to the first pulley, for adjusting the height of the first pulley according to the tension detected by the first tension sensor;

[0023] a second telescopic rod extending in a height direction and connected to the second pulley, for adjusting the height of the second pulley according to the tension detected by the second tension sensor; and

[0024] A first drive motor and a third telescopic rod, wherein the output shaft of the first drive motor extends horizontally, the third telescopic rod is vertically connected to the output shaft of the first drive motor, the third pulley is sleeved on the third telescopic rod, and the first drive motor drives the third pulley through the third telescopic rod so that the third pulley tilts in the horizontal direction, and the third telescopic rod is used to adjust the height of the third pulley.

[0025] Optionally, the cutting device includes a first winding roller and a second winding roller arranged on the same side of the first pulley and the second pulley, and both ends of the cutting line are respectively wound around the first winding roller and the second winding roller.

[0026] Optionally, the cutting device further comprises:

[0027] a second driving motor connected to the first winding roller, and configured to drive the first winding roller to rotate; and

[0028] The third driving motor is connected to the second winding roller and is used to drive the second winding roller to rotate.

[0029] Optionally, the cutting device includes nozzles respectively arranged on both sides of the photovoltaic module, and the nozzles are connected to the cooling liquid and directed towards the cutting line.

[0030] Optionally, a driving roller is provided on the support plate, wherein the driving roller is embedded in the support plate and at least partially protrudes from a surface of the support plate facing the photovoltaic assembly, and the driving roller rotates to drive the photovoltaic assembly to move;

[0031] The cutting device further comprises a guide rail and a lifting device, wherein the lifting device is used to drive the pressing plate to approach or move away from the supporting plate, and the lifting device is movably arranged on the guide rail.

[0032] Through the above-described technical solution, when the cutting device moves relative to the photovoltaic module, it causes the position of the cutting line to change relative to the photovoltaic module, allowing the cutting line to cut the adhesive layer in the photovoltaic module. Based on the position and thickness of the adhesive layer of the photovoltaic module, the adjustment unit can position the cutting line at the appropriate position before the cutting line cuts the adhesive layer, ensuring that the cutting line can adapt to photovoltaic modules of different thicknesses. At the same time, as the cutting line cuts the adhesive layer, the adjustment unit can also adjust the height of the cutting line in real time to prevent the cutting line from contacting the glass, battery cells, or backplane during the process, thereby ensuring the integrity of the glass, battery cells, and backplane, and further enabling the cutting device to adapt to photovoltaic modules of different thicknesses. When recycling glass from photovoltaic modules of different thicknesses, the cutting device can cut the adhesive layer of photovoltaic modules of different thicknesses, separating the glass, backplane, and battery cells. This eliminates the need for multiple glass recycling equipment when recycling glass from photovoltaic modules of different thicknesses, reducing the cost of recycling glass from photovoltaic modules.

[0033] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0035] Figure 1 is a schematic structural diagram of a cutting device provided by an exemplary embodiment of the present disclosure;

[0036] Figure 2 Yes Figure 1 Enlarged view of part A;

[0037] Figure 3 is a schematic structural diagram of a third pulley provided in an exemplary embodiment of the present disclosure, where the inclination angle of the third pulley in the horizontal direction is a first angle;

[0038] Figure 4 3 is a schematic structural diagram of a third pulley provided in an exemplary embodiment of the present disclosure, where the inclination angle of the third pulley in the horizontal direction is a second angle.

[0039] Description of Reference Numerals

[0040] 100-support plate, 101-drive roller, 200-pressing plate, 201-guide rail, 202-lifting device, 300-cutting device, 301-first pulley, 302-second pulley, 303-third pulley, 304-annular wheel groove, 305-first section, 306-second section, 307-first winding roller, 308-second winding roller, 309-first drive motor, 310-third telescopic rod, 400-adjusting part, 401-first tension sensor, 402-second tension sensor, 403-ultrasonic probe, 404-first telescopic rod, 405-second telescopic rod, 406-second drive motor, 407-third drive motor. DETAILED DESCRIPTION

[0041] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0042] In this disclosure, unless otherwise stated, directional terms generally refer to the orientation of the relevant components in actual use. "Inside" and "outside" can refer to the inside and outside of the outline of the corresponding component or its location inside or outside the environment, depending on the specific context. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms "first", "second", etc. used in this disclosure are intended to distinguish one element from another and do not have a sense of order or importance.

[0043] Photovoltaic modules are used to convert sunlight directly into electricity and are primarily used in the photovoltaic field. PV modules are typically available in two types: single-glass and double-glass. For example, a horizontally placed single-glass module typically consists of, from bottom to top, a backsheet, adhesive layer, cells, adhesive layer, and glass, with a frame enclosing the outside for securement and protection. For example, a horizontally placed double-glass module typically consists of, from bottom to top, glass, adhesive layer, cells, adhesive layer, and glass, with a frame enclosing the outside for securement and protection.

[0044] When photovoltaic modules reach the end of their service life or become damaged, recycling them can reduce energy waste and consumption. When recycling photovoltaic modules, the frame can be disassembled and recycled first. For example, in a double-glass photovoltaic module, after the frame is disassembled and recycled, the two layers of glass and the cells need to be recycled. For a single-glass photovoltaic module, after the frame is disassembled and recycled, the single layer of glass, the backplane, and the cells need to be recycled. However, when recycling glass from photovoltaic modules of various thicknesses, multiple glass recycling equipment is required, which takes up space and increases the cost of recycling the glass from photovoltaic modules.

[0045] like Figures 1 to 4 As shown, the present disclosure provides a cutting device for photovoltaic modules, comprising a support plate 100, a pressure plate 200, a cutting device 300, and an adjustment unit 400. The support plate 100 is used to support and secure a flat photovoltaic module; the pressure plate 200 is disposed above the support plate 100 and is used to press the photovoltaic module downward; the cutting device 300 includes a cutting line disposed between the support plate 100 and the pressure plate 200, which is used to cut the adhesive layer in the photovoltaic module when the cutting device 300 moves relative to the photovoltaic module; and the adjustment unit 400 is connected to the cutting device 300 and is used to adjust the height of the cutting line.

[0046] Through the above-described technical solution, when the cutting device 300 moves relative to the photovoltaic module, it causes the cutting line to change its position relative to the photovoltaic module, allowing the cutting line to cut the adhesive layer in the photovoltaic module. Based on the position and thickness of the photovoltaic module's adhesive layer, the adjustment unit 400 can position the cutting line at the appropriate position before the cutting line cuts the adhesive layer, ensuring that the cutting line can adapt to photovoltaic modules of different thicknesses. Furthermore, as the cutting line cuts the adhesive layer, the adjustment unit 400 can also adjust the height of the cutting line in real time to prevent the cutting line from contacting the glass, cells, or backsheet during the process, ensuring the integrity of the glass, cells, and backsheet, further enabling the cutting device 300 to adapt to photovoltaic modules of varying thicknesses. When recycling glass from photovoltaic modules of varying thicknesses, the cutting device 300 can cut through the adhesive layer of photovoltaic modules of varying thicknesses, separating the glass from the backsheet and cells. This eliminates the need for multiple glass recycling equipment when recycling glass from photovoltaic modules of varying thicknesses, reducing the cost of recycling glass from photovoltaic modules.

[0047] The adjustment part 400 may include a first detection component, a second detection component and an adjustment component, wherein the first detection component is used to detect the position and thickness of the glue layer, the second detection component is used to detect the tension on the cutting line, the adjustment component is electrically connected to the detection member, and is used to adjust the height of the cutting line, and the adjustment component is electrically connected to the first detection component and the second detection component, respectively, and is used to adjust the height of the cutting line. When the support plate 100 and the pressure plate 200 fix the thickness of photovoltaic modules of different thicknesses, the thickness and position of the glue layer in the photovoltaic module will also change. The position and thickness of the glue layer are detected by the first detection component, and the adjustment component can adjust the height of the cutting line according to the position and thickness of the glue layer detected by the first detection component, so that the cutting line can be in the glue layer, avoiding the cutting line from accidentally contacting the glass, battery cell or backplane when cutting the glue layer. When cutting the adhesive layer in a photovoltaic module to recycle the glass, the cutting line may come into contact with the glass, backplane, or cell due to vibration or unevenness of the cell and glass in the photovoltaic module. In photovoltaic modules, the hardness of the glass and backplane is greater than the hardness of the cell, and the hardness of the cell is greater than the thickness of the adhesive layer. Whether the cutting line accidentally contacts the glass or the cell will cause an abnormal increase in tension on the cutting line. When the tension on the cutting line increases abnormally, it indicates that the cutting line is in contact with the glass, cell, or backplane. The tension on the cutting line is detected by a second detection component to determine whether the tension on the cutting line has increased abnormally. When the tension on the cutting line increases abnormally, it indicates that the cutting line is in contact with the glass, cell, or backplane. At this time, the position of the cutting line can be adjusted by an adjustment component electrically connected to the second detection component to ensure the integrity of the glass, backplane, and cell.

[0048] It should be noted that the tension on the cutting line mentioned above refers to the horizontal tension that the cutting line is subjected to when cutting the adhesive layer. The horizontal tension that the cutting line is subjected to when cutting the adhesive layer can also be understood as the horizontal resistance that the cutting line is subjected to when cutting the adhesive layer. Since the cutting line will be subjected to resistance from the adhesive layer when cutting the adhesive layer, when the photovoltaic module moves horizontally, the cutting line will be subjected to horizontal resistance, that is, the horizontal tension that the cutting line is subjected to when cutting the adhesive layer.

[0049] The first detection assembly may include an ultrasonic probe 403 disposed on the pressing plate 200. The surface of the ultrasonic probe 403 facing the photovoltaic module is flush with the surface of the pressing plate 200 facing the photovoltaic module, so that the ultrasonic probe 403 can contact the photovoltaic module. When the surface of the ultrasonic probe 403 facing the photovoltaic module is flush with the surface of the pressing plate 200 facing the photovoltaic module, after the pressing plate 200 is pressed against the photovoltaic module, the detection end of the ultrasonic probe 403 can directly contact the surface of the photovoltaic module, ensuring the accuracy of the ultrasonic probe 403 in detecting the thickness of the adhesive layer. The ultrasonic probe 403 can simultaneously detect the position and thickness of both adhesive layers without being interfered with by glass, solar cells, and the backsheet. When an ultrasonic wave encounters the interface between two different media, such as when it enters the adhesive layer from glass or from the adhesive layer to the solar cell, a portion of the sound wave is reflected back to form a reflected wave, while another portion penetrates to the next layer and continues to propagate. The propagation speed of sound waves in different media varies. Based on the data of the detected reflected waves, the position and thickness of the two adhesive layers can be directly determined. In addition to ultrasonic probe 403, the first detection component can also utilize thermal imaging or optical coherence tomography to detect the thickness of the adhesive layer. Taking thermal imaging as an example, adhesive layers of different materials and thicknesses will have subtle differences in temperature distribution. By capturing these temperature differences with an infrared camera, the location and thickness of the adhesive layer can be determined. Optical coherence tomography is a high-resolution optical imaging technology that can capture cross-sectional images of the interior of a photovoltaic module. It uses the principle of light interference to measure the reflection of light at different depths, thereby providing the location and thickness of the adhesive layer.

[0050] The cutting line may include a first section 305 and a second section 306 that are offset in height. The second detection assembly may include a first tension sensor 401 and a second tension sensor 402. The first tension sensor 401 is connected to the first section 305 for detecting tension in the first section 305, while the second tension sensor 402 is connected to the second section 306 for detecting tension in the second section 306. As described above, both single-glass and double-glass photovoltaic modules have two adhesive layers. When the cutting line includes a first section 305 and a second section 306 that are offset in height, when the cutting device 300 moves relative to the photovoltaic module, the first section 305 and the second section 306 can simultaneously cut both adhesive layers. In this way, a photovoltaic module only needs to be cut once to simultaneously cut both adhesive layers, separating the glass from the backsheet and the glass from the cells. This allows for direct recycling of both glass and the cells, or the recycling of the backsheet, glass, and cells, thereby improving the glass recycling efficiency of photovoltaic modules. Furthermore, the heights of the first section 305 and the second section 306 can be adaptively adjusted by the adjusting component according to the position and thickness of the adhesive layer.

[0051] The cutting device 300 may include a first pulley 301, a second pulley 302, and a third pulley 303. The first pulley 301 and the second pulley 302 are rotatably arranged on one side of the photovoltaic component, and the third pulley 303 is rotatably arranged on the other side of the photovoltaic component, for reversing the cutting line, wherein the cutting line is respectively wound around the first pulley 301, the third pulley 303 and the second pulley 302, the part of the cutting line located between the first pulley 301 and the third pulley 303 is the first section 305, the part of the cutting line located between the second pulley 302 and the third pulley 303 is the second section 306, and the third pulley 303 is arranged at an angle to the horizontal direction so that the first section 305 and the second section 306 are staggered in the height direction. The first pulley 301, the second pulley 302 and the third pulley 303 are rotatable, which means that the first pulley 301, the second pulley 302 and the third pulley 303 can rotate respectively. When the cutting line moves along its own trajectory as described below, the first pulley 301, the second pulley 302 and the third pulley 303 that can rotate avoid excessive friction with the cutting line.

[0052] Reference Figure 3 and Figure 4The rim of the third pulley 303 may have an annular groove 304 for winding the cutting line. The third pulley 303 is tilted relative to the horizontal direction, which can cause the first section 305 and the second section 306 to be staggered in the height direction. The annular groove 304 can prevent the cutting line from escaping from the third pulley 303. At the same time, the third pulley 303 is tilted relative to the horizontal direction, and the annular groove 304 can also be tilted relative to the horizontal direction. In this way, a height difference is generated between the first section 305 and the second section 306 in the height direction, causing the first section 305 and the second section 306 to be staggered in the height direction. When the horizontal inclination angle of the third pulley 303 is increased, the height distance between the first section 305 and the second section 306 can be increased. When the horizontal inclination angle of the third pulley 303 is decreased, the height distance between the first section 305 and the second section 306 can be decreased. When the thickness of the photovoltaic module changes, the height distance between the two adhesive layers in the photovoltaic module will also change. As described above, adjusting the horizontal inclination angle of the third pulley 303 can adjust the height distance between the first section 305 and the second section 306, so that the first section 305 and the second section 306 can adapt to photovoltaic modules of different thicknesses. At the same time, the first pulley 301 and the second pulley 302 can also stagger the first section 305 and the second section 306 in the horizontal direction, ensuring that the first section 305 and the second section 306 do not interfere with each other. The third pulley 303 is used to stagger the first section 305 and the second section 306 in the height direction, ensuring that the first section 305 and the second section 306 do not interfere with each other. The first pulley 301, second pulley 302, and third pulley 303 ensure the direction and height of the cutting line, and limit the cutting line to prevent displacement or shaking, ensuring the stability of the cutting line during the cutting process. The first pulley 301, second pulley 302, and third pulley 303 are respectively placed on either side of the photovoltaic module. This allows the first section 305 and the second section 306 to span the photovoltaic module, ensuring the complete cutting of the adhesive layer.

[0053] The adjustment assembly may include a first telescopic rod 404 and a second telescopic rod 405. A first drive motor 309 and a third telescopic rod 310 are provided. The first telescopic rod 404 extends in the height direction and is connected to the first pulley 301, and is used to adjust the height of the first pulley 301 according to the tension detected by the first tension sensor 401. The second telescopic rod 405 extends in the height direction and is connected to the second pulley 302, and is used to adjust the height of the second pulley 302 according to the tension detected by the second tension sensor 402. The output shaft of the first drive motor 309 extends horizontally, and the third telescopic rod 310 is vertically connected to the output shaft of the first drive motor 309. The third pulley 303 is mounted on the third telescopic rod 310. The first drive motor 309 drives the third pulley 303 via the third telescopic rod 310 to tilt the third pulley 303 in the horizontal direction. The third telescopic rod 310 is used to adjust the height of the third pulley 303. Adjusting the height of the first pulley 301 and the third pulley 303 can adjust the height of the first section 305, while ensuring that the first section 305 remains horizontal after adjusting the horizontal inclination of the third pulley 303. Adjusting the height of the second pulley 302 and the third pulley 303 can adjust the height of the second section 306, while ensuring that the second section 306 remains horizontal after adjusting the horizontal inclination of the third pulley 303. Simultaneously, when the first drive motor 309 is activated, it can drive the third telescopic rod 310 to swing. When the third telescopic rod 310 swings, it drives the third pulley 303 to swing, thereby changing the horizontal inclination of the third pulley 303.

[0054] Generally speaking, when simultaneously cutting two adhesive layers in a photovoltaic module, the horizontal inclination angle of the third pulley 303 can be greater than 0.5 degrees and less than 5 degrees. If the horizontal inclination angle of the third pulley 303 is too small, the height distance between the first section 305 and the second section 306 will be too small, causing the first section 305 and the second section 306 to accidentally contact the solar cell when cutting the adhesive layer. If the horizontal inclination angle of the third pulley 303 is too large, the height distance between the first section 305 and the second section 306 will be too large. For example, in a double-glass photovoltaic module, when cutting the adhesive layer, the first section 305 and the second section 306 may accidentally contact the glass. The height distance between the first section 305 and the second section 306 can be determined based on the thickness of the solar cell and the thickness of the photovoltaic module. Generally speaking, the height distance between the first section 305 and the second section 306 can be greater than 130 microns and less than 250 microns.

[0055] Since the first section 305 and the second section 306 are staggered in the horizontal direction, in the present disclosure, there is no restriction on the cutting order of the first section 305 and the second section 306. The first section 305 may start cutting the adhesive layer first and the second section 306 may start cutting the adhesive layer later, or the second section 306 may start cutting the adhesive layer first and the first section 305 may cut the adhesive layer later.

[0056] It should be noted that the photovoltaic module used in the cutting device is not a complete photovoltaic module; the frame of the photovoltaic module has been disassembled. In some embodiments, the two ends of the cutting line can be connected to each other, and the cutting line can be directly mounted on the first pulley 301, the second pulley 302, and the third pulley 303. When the first pulley 301 and the second pulley 302 rotate, the cutting line can move along its own extended trajectory, ensuring that the cutting line effectively cuts the adhesive layer. By adjusting the rotation speed of the first pulley 301 and the second pulley 302, the linear speed of the cutting line can be adjusted, and by adjusting the length of the cutting line, the tension on the cutting line can be adjusted.

[0057] In other embodiments, the cutting device 300 may include a first winding roller 307 and a second winding roller 308 disposed on the same side of the first pulley 301 and the second pulley 302, with the ends of the cutting line being wound around the first winding roller 307 and the second winding roller 308, respectively. When the winding rollers rotate, the cutting line can move along its own extended trajectory, ensuring the effectiveness of the cutting line in cutting the adhesive layer. Taking the first winding roller 307 as an example, when the first winding roller 307 pays out the line and the second winding roller 308 reels in the line, or when the first winding roller 307 reels in the line and the second winding roller 308 pays out the line, the cutting line can move along its own extended trajectory. By adjusting the speed of the winding rollers, the linear speed of the cutting line can also be adjusted. At the same time, by changing the rotation direction of the first winding roller 307 and the second winding roller 308, the winding rollers can play the role of taking up or paying out the line, so that the length of the cutting line can be adjusted to adjust the tension on the cutting line and ensure that the cutting line can always be in a tensioned state.

[0058] For example, if the height of first section 305 is higher than that of second section 306 and the photovoltaic module is a double-glass photovoltaic module, when cutting the adhesive layer, first section 305 will cut the adhesive layer located above the photovoltaic module. If the height of first section 305 is too high, it will contact the glass. If the height of first section 305 is too low, it will contact the cell. Second section 306 will cut the adhesive layer located below the photovoltaic module. If the height of second section 306 is too high, it will contact the cell. If the height of second section 306 is too low, it will contact the glass. Because the hardness of the glass and backplane in the photovoltaic module is greater than the hardness of the cell, and the hardness of the cell is greater than the thickness of the adhesive layer, the tension when the cutting line accidentally contacts the glass will be greater than the tension when the cutting line accidentally contacts the cell. Here, the tension when the cutting line accidentally contacts the cell is defined as a first preset value, and the tension when the cutting line accidentally contacts the glass is defined as a second preset value. The second preset value is greater than the first preset value.

[0059] Continuing with the example of a situation where the height of first section 305 is higher than that of second section 306 and the photovoltaic module is a double-glass photovoltaic module, when the tension of first section 305 is greater than the first preset value and less than the second preset value, it indicates that the height of first section 305 is too low and in contact with the solar cells. In this case, the height of first section 305 needs to be raised. In this case, the horizontal inclination angle of third pulley 303 can be increased, increasing the height distance between first section 305 and second section 306, so that first section 305 is further away from the solar cells below. To ensure the level of first section 305, the height of first pulley 301 needs to be raised. At the same time, to prevent the increase in the horizontal inclination angle of third pulley 303 from affecting the height of second section 306, the height of third pulley 303 needs to be raised to ensure that the height position of second section 306 remains unchanged.

[0060] When the tension of first section 305 exceeds the second preset value, it indicates that first section 305 is too high and in contact with the glass. In this case, the height of first section 305 needs to be lowered. In this case, the horizontal inclination angle of third pulley 303 can be reduced, thereby reducing the height distance between first section 305 and second section 306. This allows first section 305 to be further away from the glass above. To ensure the level of first section 305, the height of first pulley 301 needs to be lowered. Furthermore, to prevent the reduction of the horizontal inclination angle of third pulley 303 from affecting the height of second section 306, the height of third pulley 303 needs to be lowered to ensure that the height position of second section 306 remains unchanged.

[0061] When the tension on the second section 306 is greater than the first preset value and less than the second preset value, it indicates that the height of the second section 306 is too high and is in contact with the solar cells. In this case, the height of the first section 305 needs to be lowered. In this case, the horizontal inclination angle of the third pulley 303 can be increased, increasing the height distance between the first section 305 and the second section 306, so that the second section 306 is closer to the solar cells. To ensure the level of the second section 306, the height of the second pulley 302 needs to be increased. At the same time, to prevent the increase in the horizontal inclination angle of the third pulley 303 from affecting the height of the first section 305, the height of the third pulley 303 needs to be increased to ensure that the height position of the first section 305 remains unchanged.

[0062] When the tension on second section 306 exceeds the second preset value, it indicates that second section 306 is too low and in contact with the glass. In this case, it is necessary to raise second section 306. In this case, the horizontal inclination of third pulley 303 can be reduced, reducing the height distance between first section 305 and second section 306. This allows second section 306 to be further away from the glass below. To ensure the level of second section 306, the height of second pulley 302 must be raised. Furthermore, to prevent the reduction of the horizontal inclination of third pulley 303 from affecting the height of first section 305, the height of third pulley 303 must also be reduced to ensure that the height position of first section 305 remains unchanged.

[0063] When the tension of the first section 305 and the second section 306 changes simultaneously, the aforementioned increasing adjustment methods can be combined. For example, when the tension of the first section 305 is greater than the first preset value and the tension of the second section 306 is greater than the second preset value, it indicates that the first section 305 is in contact with the cell and the second section 306 is in contact with the glass, and the overall position of the cutting line is too low. When the tension of the first section 305 is greater than the first preset value and the tension of the second section 306 is greater than the second preset value, the height of the third pulley 303 needs to be increased. In this case, the maximum of the second target height and the fourth target height can be used to adjust the height of the third pulley 303. Based on the height of the third pulley 303, the heights of the first pulley 301 and the second pulley 302 can be further adjusted. At the same time, the horizontal inclination of the third pulley 303 can be adjusted by calculating the difference between the inclination angle that needs to be increased and the inclination angle that needs to be decreased in the horizontal direction.

[0064] For another example, when the tension in the first section 305 is greater than the first preset value and when the tension in the second section 306 is greater than the first preset value, it indicates that both the first section 305 and the second section 306 are in contact with the battery cell and the height distance between the first section 305 and the second section 306 is too small. When the tension in the first section 305 is greater than the first preset value and when the tension in the second section 306 is greater than the first preset value, the horizontal inclination angle of the third pulley 303 needs to be increased. In this case, the maximum value of the first target inclination angle and the second target inclination angle can be used to adjust the horizontal inclination angle of the third pulley 303. At the same time, the height of the third pulley 303 can be adjusted by the difference between the second target height and the fourth target height, and the heights of the first pulley 301 and the second pulley 302 can be adjusted based on the height of the third pulley 303.

[0065] In this way, during the process of cutting the adhesive layer, the height of the first section 305 and the height of the second section 306 can be adjusted in real time according to the tension. Even if the cutting line accidentally contacts the battery cell, glass and backboard, the position of the cutting line can be adjusted in time to ensure that the cutting line is in the adhesive layer during the cutting process, so that the cutting device 300 can be suitable for photovoltaic modules of different thicknesses. When facing photovoltaic modules of different thicknesses, the cutting device 300 can ensure that the cutting line is in the adhesive layer during the process of cutting the adhesive layer.

[0066] In the present disclosure, when the cutting line in the cutting device is provided with a first section 305 and a second section 306, two adhesive layers in a photovoltaic module can be cut simultaneously. Furthermore, when the cutting line in the cutting device is provided with a first section 305 and a second section 306, a single adhesive layer can be cut through the second section 306 by changing the horizontal inclination angle of the third pulley 303. Taking a single-glass photovoltaic module and the height of the first section 305 being higher than the second section 306 as an example, if only the backboard or glass in the single-glass photovoltaic module needs to be recycled, only one glue layer needs to be cut. At this time, the inclination angle of the third pulley 303 in the horizontal direction can be changed to adjust the height distance between the first section 305 and the second section 306, so that the distance between the first section 305 and the second section 306 is increased. As mentioned above, the height of the first section 305 is higher than the height of the second section 306. When the distance between the first section 305 and the second section 306 is large enough and the position of the second section 306 corresponds to the glue layer to be cut, the second section 306 can cut one glue layer, and the first section 305 can avoid the photovoltaic module. At this time, the inclination angle of the third pulley 303 in the horizontal direction can be greater than 5 degrees and less than 90 degrees. If the inclination angle of the third pulley 303 in the horizontal direction is too small, the distance between the first section 305 and the second section 306 in the height direction will be too small, and the first section 305 will not be able to avoid the photovoltaic module and will contact the single-glass photovoltaic module. If the inclination angle of the third pulley 303 in the horizontal direction is too large, the first section 305 and the second section 306 will be entangled with each other, and the first section 305 and the second section 306 will easily detach from the third pulley 303, affecting the use of the cutting line device. It should be noted that the present invention fixes the position of the photovoltaic module by the support plate 100 and the pressure plate 200. When a glue layer is cut by the second section 306, the first section 305 needs to avoid the pressure plate 200. At this time, the second pulley 302 and the third pulley 303 can be set at one end of the support plate 100 and the first pulley 301 can be set on the outside of the support plate 100. In this way, the first section 305 can be set on the outside of the support plate 100. During the movement of the pressure plate 200, the first section 305 will not contact the pressure plate 200.

[0067] In addition to the above-mentioned method of increasing the distance between the first section 305 and the second section 306 so that the second section 306 cuts a glue layer, the distance between the first section 305 and the second section 306 can also be reduced so that the first section 305 and the second section 306 can cut a glue layer at the same time. Figure 3 and Figure 4With reference to the direction of the drawing, the inclination angle of the third pulley 303 in the horizontal direction can be reduced to 0 degrees, that is, the third pulley 303 is parallel to the horizontal direction. At this time, the first section 305 and the second section 306 are respectively in the same horizontal plane. By adjusting the heights of the first pulley 301, the second pulley 302 and the third pulley 303, the first section 305 and the second section 306 can correspond to the positions of the adhesive layer. In this way, the first section 305 and the second section 306 can cut one adhesive layer at the same time and cut one adhesive layer twice.

[0068] The cutting device 300 may further include a second drive motor 406 and a third drive motor 407. The second drive motor 406 is connected to the first winding roller 307 for driving the first winding roller 307 to rotate; the third drive motor 407 is connected to the second winding roller 308 for driving the second winding roller 308 to rotate. In this way, the operator can control the rotation direction and rotation speed of the first winding roller 307 and the second winding roller 308 via the first drive motor 309 and the second drive motor 406.

[0069] Cutting device 300 may include spray nozzles positioned on either side of the photovoltaic module, each nozzle connected to a coolant and directed toward the cutting line. As the cutting line cuts through the adhesive layer, it continuously rubs against the adhesive layer, generating heat. This heat can cause the adhesive layer to adhere to the cutting line, thereby affecting the cutting effect. Spraying coolant toward the cutting line ensures that the cutting line temperature does not rise excessively, preventing the adhesive layer from melting and extending the service life of the cutting line. Spraying coolant also reduces debris generated by cutting the adhesive layer, ensuring a clean environment.

[0070] The support plate 100 may be provided with a driving roller 101, which is embedded in the support plate 100 and at least partially protrudes from the surface of the support plate 100 facing the photovoltaic module. The driving roller 101 rotates to drive the photovoltaic module to move. The cutting device may also include a guide rail 201 and a lifting device 202. The lifting device 202 is used to drive the pressing plate 200 to move closer to or away from the support plate 100. The lifting device 202 is movably provided on the guide rail 201. For details, please refer to Figure 1 and Figure 2In this way, the support plate 100 supports the photovoltaic module through the driving roller 101, and also drives the photovoltaic module to move through the rotation of the driving roller 101, so that the photovoltaic module can move relative to the cutting line. Through the movement of the photovoltaic module, the position of the cutting line is relatively fixed, avoiding the large movement of the cutting line. The cutting line only needs to adjust its own height to ensure the accuracy of the cutting line position and avoid displacement caused by large movement of the cutting line. At the same time, the pressure plate 200 can be set above the support plate 100 to press the photovoltaic module downward to ensure the flatness and stability of the photovoltaic module. The pressure plate 200 is also provided with a guide rail 201 and a lifting device 202. The lifting device 202 is used to drive the pressure plate 200 toward or away from the support plate 100. The lifting device 202 is movably set on the guide rail 201. The pressure plate 200 presses the photovoltaic module downward through the lifting device 202 to ensure the stability of the photovoltaic module during movement. At the same time, the pressure plate 200, which is movably set on the guide rail 201, can move with the photovoltaic module, so that the stability of the photovoltaic module can be maintained when it moves in the horizontal direction.

[0071] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple variations can be made to the technical solutions of the present disclosure, and these simple variations all fall within the scope of protection of the present disclosure. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0072] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A cutting device for photovoltaic modules, characterized in that: include: Support plate, used to support and fix the flat photovoltaic modules; A pressing plate, arranged above the supporting plate, for pressing the photovoltaic assembly downward; a cutting device, comprising a cutting line provided between the support plate and the pressing plate, the cutting line being used to cut the glue layer in the photovoltaic module when the cutting device moves relative to the photovoltaic module; as well as An adjusting portion is connected to the cutting device and is used to adjust the height of the cutting line.

2. The cutting device for photovoltaic modules according to claim 1, characterized in that: The adjustment part includes a first detection component, a second detection component and an adjustment component. Wherein, the first detection component is used to detect the position and thickness of the adhesive layer; The second detection component is used to detect the tension on the cutting line; The adjusting component is electrically connected to the first detecting component and the second detecting component respectively, and is used to adjust the height of the cutting line.

3. The cutting device for photovoltaic modules according to claim 2, characterized in that: The first detection component includes an ultrasonic probe arranged on the pressing plate, and a surface of the ultrasonic probe facing the photovoltaic component is flush with a surface of the pressing plate facing the photovoltaic component, so that the ultrasonic probe can contact the photovoltaic component.

4. The cutting device for photovoltaic modules according to claim 2, characterized in that: The cutting line includes a first section and a second section that are staggered in a height direction, and the second detection component includes: a first tension sensor connected to the first segment and configured to detect tension on the first segment; The second tension sensor is connected to the second section and is used to detect the tension on the second section.

5. The cutting device for photovoltaic modules according to claim 4, characterized in that: The cutting device comprises: A first pulley, a second pulley and a third pulley, wherein the first pulley and the second pulley are rotatably disposed on one side of the photovoltaic assembly, and the third pulley is rotatably disposed on the other side of the photovoltaic assembly, for reversing the cutting line. The cutting line is wound around the first pulley, the third pulley and the second pulley respectively. The portion of the cutting line located between the first pulley and the third pulley is the first section, and the portion of the cutting line located between the second pulley and the third pulley is the second section. And wherein, the third pulley is arranged to be inclined with respect to the horizontal direction so that the first section and the second section are staggered in the height direction.

6. The cutting device for photovoltaic modules according to claim 5, characterized in that: The adjustment component includes: a first telescopic rod extending in a height direction and connected to the first pulley, for adjusting the height of the first pulley according to the tension detected by the first tension sensor; a second telescopic rod extending in a height direction and connected to the second pulley, for adjusting the height of the second pulley according to the tension detected by the second tension sensor; and A first drive motor and a third telescopic rod, wherein the output shaft of the first drive motor extends horizontally, the third telescopic rod is vertically connected to the output shaft of the first drive motor, the third pulley is sleeved on the third telescopic rod, and the first drive motor drives the third pulley through the third telescopic rod so that the third pulley tilts in the horizontal direction, and the third telescopic rod is used to adjust the height of the third pulley.

7. The cutting device for photovoltaic modules according to claim 5, characterized in that: The cutting device includes a first winding roller and a second winding roller arranged on the same side of the first pulley and the second pulley, and two ends of the cutting line are respectively wound around the first winding roller and the second winding roller.

8. The cutting device for photovoltaic modules according to claim 7, characterized in that: The cutting device further comprises: a second driving motor connected to the first winding roller, and configured to drive the first winding roller to rotate; and The third driving motor is connected to the second winding roller and is used to drive the second winding roller to rotate.

9. The cutting device for photovoltaic modules according to claim 1, characterized in that: The cutting device comprises nozzles respectively arranged on both sides of the photovoltaic module, the nozzles being connected to the cooling liquid and facing the cutting line.

10. The cutting device for photovoltaic modules according to claim 1, characterized in that: A driving roller is provided on the support plate, wherein the driving roller is embedded in the support plate and at least partially protrudes from a surface of the support plate facing the photovoltaic assembly, and the driving roller rotates to drive the photovoltaic assembly to move; The cutting device further comprises a guide rail and a lifting device, wherein the lifting device is used to drive the pressing plate to approach or move away from the supporting plate, and the lifting device is movably arranged on the guide rail.

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