Cutting equipment for photovoltaic module
By designing cutting equipment suitable for photovoltaic modules, the problem of the high demand and inconvenient operation of glass recycling equipment for photovoltaic modules of various thicknesses is solved, and convenient hierarchical separation and cost reduction are achieved.
Patent Information
- Application Number
- CN202422363803.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Existing glass recycling equipment can only process photovoltaic modules of one thickness, resulting in the need of multiple equipment when recycling glass of photovoltaic modules of multiple thicknesses, occupying space and increasing costs. At the same time, cutting equipment is difficult to easily classify and recycle photovoltaic modules at all levels.
A cutting device including a support table, a press plate, a cutting device, an adjustment part and a support part is designed. By placing the photovoltaic module vertically, the adjustment component is used to detect the position and tension of the glue layer. The cutting lines are incorrect in the thickness direction to avoid contact with glass, battery cells or back plates, and to achieve convenient separation at all levels.
It realizes the glass recycling of photovoltaic modules of different thicknesses without multiple equipment, is convenient to operate, protects the integrity of the hierarchical structure, reduces recycling costs, and improves glass recycling efficiency.
Smart Images
Figure CN223264486U_ABST
Abstract
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 a large amount of energy and raw materials, and recycling photovoltaic modules can reduce energy waste and consumption. When recycling photovoltaic modules, it is necessary to first disassemble the frame to recycle the frame, and then use glass recycling equipment to recycle the glass on the photovoltaic module. In the related art, a glass recycling device can only recycle the glass on photovoltaic modules of one thickness. When recycling the glass on photovoltaic modules of multiple thicknesses, it is necessary to prepare multiple glass recycling devices, which takes up space and increases the cost of recycling the glass on the photovoltaic modules. At the same time, after the layers of the photovoltaic modules are cut open, since the photovoltaic modules are usually placed horizontally, multiple layers of different types are stacked in the height direction, the equipment cannot easily classify and recycle the layers, causing certain inconveniences. Utility Model Content
[0004] The present disclosure aims to provide a cutting device for photovoltaic modules to solve the problems existing in the above-mentioned related technologies.
[0005] In order to achieve the above objectives, the present disclosure provides a cutting device for photovoltaic modules, comprising:
[0006] A support platform includes a vertically arranged support surface for resting against one side of a vertically arranged photovoltaic module; a pressure plate arranged opposite to the support surface for pressing the photovoltaic module against the support surface; a cutting device including a cutting line arranged between the support platform and the pressure 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; an adjusting portion connected to the cutting device for adjusting the position of the cutting line in the thickness direction; a supporting portion arranged at the bottom of the support platform, the supporting portion being arranged perpendicular to the support surface for supporting the photovoltaic module from the bottom; and a bracket arranged at the back of the support platform.
[0007] Optionally, 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 adjustment component is electrically connected to the first detection component and the second detection component respectively, and is used to adjust the relative distance between the cutting line and the support surface of the support table.
[0008] 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.
[0009] Optionally, the cutting line includes a first segment and a second segment that are staggered in the thickness direction, and the second detection component includes: a first tension sensor connected to the first segment for detecting the tension on the first segment; a second tension sensor connected to the second segment for detecting the tension on the second segment.
[0010] Optionally, the cutting device comprises:
[0011] A first pulley, a second pulley and a third pulley, wherein the first pulley and the second pulley are rotatably arranged on the top of the support platform, and the third pulley is rotatably arranged on the bottom of the support platform for reversing the cutting line, wherein 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, and the portion of the cutting line located between the second pulley and the third pulley is the second section,
[0012] And wherein, the third pulley is arranged to be horizontally deflectable in the thickness direction, so that the first section and the second section are staggered in the thickness direction.
[0013] Optionally, the adjustment component includes:
[0014] A first telescopic rod extends in a direction perpendicular to the support platform and is connected to the first pulley, and is used to adjust the extension distance of the first pulley relative to the support surface of the support platform according to the tension detected by the first tension sensor; a second telescopic rod extends in a direction perpendicular to the support platform and is connected to the second pulley, and is used to adjust the extension distance of the second pulley relative to the support surface of the support platform according to the tension detected by the second tension sensor; and a first drive motor and a third telescopic rod, the output shaft of the first drive motor is connected to the third telescopic rod, and the third pulley is sleeved on the third telescopic rod, and the first drive motor drives the third pulley to deflect in the thickness direction through the third telescopic rod, and the third telescopic rod is used to adjust the extension distance of the third pulley relative to the support surface of the support platform.
[0015] 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.
[0016] Optionally, the cutting device further comprises:
[0017] a second driving motor connected to the first winding roller and used for driving the first winding roller to rotate; and a third driving motor connected to the second winding roller and used for driving the second winding roller to rotate.
[0018] Optionally, a roller is provided on the support platform, wherein the roller is embedded in the support platform and at least partially protrudes from a surface of the support platform facing the photovoltaic assembly;
[0019] The roller is a driving roller, which is used to drive the photovoltaic assembly to move when rotating, the supporting part is a conveyor belt, and the rotation speed of the roller is the same as the transmission speed of the supporting part.
[0020] Optionally, the cutting equipment also includes a guide rail and a positioning device, the positioning device is used to drive the pressure plate close to or away from the support table, and the positioning device is movably arranged on the guide rail; the guide rail includes a first guide rail placed horizontally and a second guide rail placed vertically, one end of the first guide rail is slidably connected to the second guide rail, and the pressure plate is arranged on the first guide rail.
[0021] Through the above technical solution, the support table is placed vertically, and after the photovoltaic module is pressed against the support table by the pressure plate, it can be moved vertically relative to the support surface of the support table, and the connection adhesive layer of photovoltaic modules of different types and specifications can be cut by adjusting the position of the cutting line of the cutting device in the thickness direction. During this process, the cutting line can avoid contact with the glass, battery cells or backboard, thereby ensuring the structural integrity of each layer to be separated. At the same time, the supporting part located at the bottom of the support table can continuously transport the photovoltaic module in a direction parallel to the support surface. The various layers of the photovoltaic module after being cut can be placed vertically on the supporting part by their own gravity. The operator can directly separate the various layers of the photovoltaic module to achieve the separation of the glass and backboard from the battery cells. The operation is convenient and effectively protects the structural integrity of each layer of the photovoltaic module during the separation process. When recycling the glass of photovoltaic modules of different thicknesses, it is no longer necessary to set up multiple glass recycling equipment, thereby reducing the recycling cost of the glass in the photovoltaic module.
[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] 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:
[0024] Figure 1 is a schematic structural diagram of a cutting device provided by an exemplary embodiment of the present disclosure;
[0025] Figure 2 yes Figure 1 Enlarged view of part A;
[0026] Figure 3 is a schematic diagram of the elevation angle of the cutting device provided by an exemplary embodiment of the present disclosure;
[0027] Figure 4 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;
[0028] Figure 5 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.
[0029] Description of Reference Numerals
[0030] 100-support platform, 101-roller, 200-pressing plate, 201-first guide rail, 202-positioning device, 203-second guide rail, 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, 500-supporting part, 600-bracket. DETAILED DESCRIPTION
[0031] 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.
[0032] In the present disclosure, unless otherwise stated, the directional words used 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 in which it is located, depending on the specific context. "Top and bottom" can refer to the top and bottom of the relevant structural components in actual use. The thickness direction in this disclosure is defined according to the thickness of the photovoltaic module. It can be understood that when the photovoltaic module described below is pressed against the support surface of the support platform, the thickness direction of the photovoltaic module is consistent with that of the support platform. At this time, the direction perpendicular to the support surface can also be expressed as the thickness direction. 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, and the structures shown in the drawings are for illustration only and do not limit the technical content of the present disclosure. The terms "first", "second", etc. used in this disclosure are to distinguish one element from another and do not have sequentiality or importance.
[0033] 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.
[0034] 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.
[0035] like Figures 1 to 3 As shown, the present disclosure provides a cutting device for photovoltaic modules, including a support table 100, a pressing plate 200, a cutting device 300, an adjusting portion 400, a supporting portion 500, and a bracket 600. The support table 100 is a vertical platform having a vertically arranged supporting surface that can be used to abut against one side of a vertical photovoltaic module. The pressing plate 200 can be arranged opposite to the supporting surface of the support table 100 to press the photovoltaic module against the supporting surface. The support table 100 is provided with a cutting device 300. The cutting device 300 can include a cutting line arranged between the support table 100 and the pressing plate 200. The cutting line can be used to cut the glue layer in the photovoltaic module when the cutting device 300 moves relative to the photovoltaic module. The adjusting portion 400 is connected to the cutting device 300 and can adjust the position of the cutting line in the thickness direction to correspond to the glue layer position of photovoltaic modules of different types and specifications. A supporting portion 500 may be provided at the bottom of the support platform 100, and the supporting portion 500 may be arranged perpendicular to the supporting surface of the support platform 100 to support the photovoltaic components from the bottom, and a bracket 600 may be provided on the back of the support platform 100 to provide firm support to the support platform 100 from the back of the device to ensure the overall stability of the device.
[0036] Through the above technical solution, the support platform 100 is placed vertically. After the photovoltaic module is pressed against the support surface of the support platform 100 by the pressing plate 200, it can be moved vertically relative to the support surface. The position of the cutting line of the cutting device 300 in the thickness direction can be adjusted to cut the connecting adhesive layer of photovoltaic modules of different types and specifications. During this process, the cutting line can avoid contact with the glass, battery cells or backsheet, thereby ensuring the structural integrity of each layer to be separated. At the same time, the supporting part 500 located at the bottom of the support platform 100 can continuously transport the photovoltaic module in a direction parallel to the support surface. The cut layers of the photovoltaic module can be placed vertically on the supporting part by their own gravity. The operator can directly separate the layers of the photovoltaic module to achieve a simple separation of the glass and backsheet from the battery cells. The operation is convenient and effectively protects the integrity of each layer of the photovoltaic module during the separation process. When recycling the glass of photovoltaic modules of different thicknesses, it is no longer necessary to set up multiple glass recycling equipment, thereby reducing the recycling cost of the glass in the photovoltaic module.
[0037] In some embodiments, reference Figures 1 to 3 The adjustment part 400 may include a first detection component, a second detection component and an adjustment component, wherein the first detection component can be used to detect the position and thickness of the glue layer, the second detection component can be used to detect the tension on the cutting line, the adjustment component can be electrically connected to the detection component 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 to adjust the relative distance between the cutting line and the supporting surface of the support table 100.
[0038] In the above embodiment, when the support platform 100 and the pressing plate 200 are used to fix photovoltaic modules of different types and specifications, the layers in the photovoltaic modules have different structures and thicknesses, and accordingly, the thickness and position of the adhesive layer will also vary. In this case, the first detection component can detect the position and thickness of the adhesive layer and adjust the height of the cutting line relative to the adhesive layer so that the cutting line can maintain the cutting action within the adhesive layer, thereby preventing the cutting line from accidentally contacting the glass, cell, or backsheet when cutting the adhesive layer, thereby damaging the structural integrity of the layers. Alternatively, in some cases, due to vibration or unevenness of the cell and glass in the photovoltaic module, the cutting line may contact the glass, backsheet, or cell during the process of cutting the adhesive layer. The hardness of the glass and backsheet is generally greater than that of the cell, which is generally greater than the thickness of the adhesive layer. In this case, accidental contact between the cutting line and 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 backsheet. By detecting the tension on the cutting line through the second detection component, it can be known whether the tension on the cutting line increases abnormally. When the tension on the cutting line increases abnormally, it means that the cutting line is in contact with the glass, battery cell or back panel. At this time, the position of the cutting line can be adjusted by the adjustment component electrically connected to the second detection component to ensure the integrity of the glass, back panel and battery cell.
[0039] It should be noted that the aforementioned tension on the cutting line refers to the tension in the tensile direction experienced by the cutting line when cutting the adhesive layer. The tension experienced by the cutting line in the tensile direction when cutting the adhesive layer can also be understood as the resistance experienced by the cutting line in the direction of movement of the photovoltaic module when cutting the adhesive layer. When the photovoltaic module moves along the support surface of the support platform 100, it will contact the cutting line and squeeze the cutting line in the direction of movement of the photovoltaic module. At this time, the tension on the cutting line can vary in accordance with the resistance provided by the photovoltaic module, that is, the tension increases when the resistance increases, and decreases when the resistance decreases.
[0040] For example, refer to Figure 3The first detection component 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 presses 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 thickness of the adhesive layer detected by the ultrasonic probe 403. The ultrasonic probe 403 can simultaneously detect the position and thickness of the two adhesive layers without being interfered with by the glass, solar cells, and backplane. When an ultrasonic wave encounters the interface between two different media, for example, when entering the adhesive layer from the glass or from the adhesive layer to the solar cell, a portion of the sound wave will be reflected back to form a reflected wave, while the other portion will penetrate to the next layer and continue to propagate. The propagation speed of the sound wave in different media is different. The position and thickness of the two adhesive layers can be calculated based on the data difference of the detected reflected waves. In addition to ultrasonic probe 403, the first detection component can also use 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 obtain 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 and can therefore also be used to provide the location and thickness of the adhesive layer.
[0041] For example, refer to Figure 1 and Figure 2 The cutting line may include a first section 305 and a second section 306 that are offset in the thickness direction. 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, and 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 the thickness direction, the first section 305 and the second section 306 can simultaneously cut the two adhesive layers during the movement of the cutting device 300 relative to the photovoltaic module. This allows the photovoltaic module to be cut only once to simultaneously sever both adhesive layers, separating the glass from the backsheet and the glass from the cells. Consequently, the recycling of both glass and the cells, or the backsheet, glass, and cells, can be completed in a single cutting operation, thereby improving the glass recycling efficiency of the photovoltaic module. 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.
[0042] In some embodiments, reference Figures 1 to 3 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 disposed on the top of the support platform 100, and the third pulley 303 is rotatably disposed on the bottom of the support platform 100 to change the direction of the cutting line. The cutting line may be sequentially wound around the first pulley 301, the third pulley 303, and the second pulley 302. The portion of the cutting line located between the first pulley 301 and the third pulley 303 is a first segment 305, and the portion of the cutting line located between the second pulley 302 and the third pulley 303 is a second segment 306. The third pulley 303 is horizontally rotatable in the thickness direction so that the first segment 305 and the second segment 306 are staggered in the thickness direction. It should be noted that 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 to form a rolling transmission with the cutting line. The cutting line can be driven by the rotation of the first pulley 301, the second pulley 302 and the third pulley 303 and move along its own trajectory to improve the cutting effect of the rubber layer.
[0043] In other embodiments, reference Figures 1 to 3 The rim of the third pulley 303 can have an annular groove 304 for winding the cutting line. The third pulley 303 can be horizontally deflected in the thickness direction, which can cause the first section 305 and the second section 306 to be staggered in the thickness direction. At the same time, the annular groove 304 can also be horizontally deflected in the thickness direction to prevent the cutting line from detaching from the third pulley 303 and create a height difference between the first section 305 and the second section 306 in the thickness direction, thereby achieving the effect of staggering in the thickness direction. When the inclination angle of the third pulley 303 in the thickness direction is increased, the spacing between the first section 305 and the second section 306 in the thickness direction increases. Similarly, when the inclination angle of the third pulley 303 in the horizontal direction is reduced, the spacing between the first section 305 and the second section 306 in the thickness direction decreases. When the thickness of the photovoltaic module changes, the distance between the two adhesive layers in the photovoltaic module in the height direction will also change. As mentioned above, adjusting the inclination angle of the third pulley 303 in the thickness direction can adjust the distance between the first section 305 and the second section 306 in the thickness direction, so that the first section 305 and the second section 306 can correspond to the two adhesive layers of photovoltaic modules of different thicknesses.
[0044] In the above embodiment, the third pulley 303 can stagger the first section 305 and the second section 306 in the thickness direction, ensuring that the first section 305 and the second section 306 do not interfere with each other in the thickness direction. At the same time, the first pulley 301 and the second pulley 302 are spaced apart along the direction of movement of the photovoltaic module, which can 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 horizontally. The first pulley 301, the second pulley 302 and the third pulley 303 can ensure the direction and thickness of the cutting line, limit the cutting line, avoid misalignment or shaking of the cutting line, and ensure the stability of the cutting line during the cutting process. At the same time, the first pulley 301, the second pulley 302 and the third pulley 303 are respectively arranged on the top and bottom sides of the support platform 100, so that the first section 305 and the second section 306 can cross the photovoltaic module to completely cut the adhesive layer.
[0045] For example, refer to Figures 1 to 3 The adjustment assembly may include a first telescopic rod 404, a second telescopic rod 405, a third telescopic rod 310, and a first drive motor 309. The first telescopic rod 404 may extend in a direction perpendicular to the support platform 100 and be connected to the first pulley 301, and be configured to adjust the extension distance of the first pulley 301 relative to the support surface of the support platform 100 based on the tension detected by the first tension sensor 401. The second telescopic rod 405 may extend in a direction perpendicular to the support platform 100 and be connected to the second pulley 302, and be configured to adjust the extension distance of the second pulley 302 relative to the support surface of the support platform 100 based on the tension detected by the second tension sensor 402. Similarly, the third pulley 303 can be mounted on the third telescopic rod 310, and the third telescopic rod 310 can also be used to adjust the extension distance of the third pulley 303 relative to the support surface of the support platform 100. At the same time, the output shaft of the first drive motor 309 can be connected to the third telescopic rod 310, and the first drive motor 309 can drive the third pulley 303 to deflect in the thickness direction through the third telescopic rod 310, so as to achieve the adjustment of the spacing between the first section 305 and the second section 306 of the cutting line in the thickness direction through the deflection of the third pulley 303 in the thickness direction, thereby meeting the adaptability of cutting photovoltaic modules of different types and specifications.
[0046] In other embodiments, the first drive motor 309 can drive the third telescopic rod 310 to swing, so that the third telescopic rod 310 drives the third pulley 303 to deflect, or the third pulley 303 and the third telescopic rod 310 can be rotatably connected. At this time, the first drive motor 309 can drive the third pulley 303 to rotate relative to the third telescopic rod 310, adjust the deflection angle of the third pulley 303 in the thickness direction, and then adjust the spacing between the first section 305 and the second section 306 in the thickness direction.
[0047] Generally speaking, when it is necessary to simultaneously cut two adhesive layers in a photovoltaic module, the inclination angle of the third pulley 303 in the thickness direction can be greater than 0.5 degrees and less than 5 degrees. If the inclination angle of the third pulley 303 in the thickness direction is too small, the spacing between the first section 305 and the second section 306 in the thickness direction 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 inclination angle of the third pulley 303 in the thickness direction is too large, the spacing between the first section 305 and the second section 306 in the thickness direction will be too large. Taking a double-glass photovoltaic module as an example, when cutting the adhesive layer, the first section 305 and the second section 306 may accidentally contact the glass. The spacing between the first section 305 and the second section 306 in the thickness direction can be determined based on the thickness of the solar cell and the thickness of the photovoltaic module. Generally speaking, the spacing between the first section 305 and the second section 306 in the thickness direction can be greater than 130 microns and less than 250 microns.
[0048] Since the first section 305 and the second section 306 are staggered in the thickness 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.
[0049] 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.
[0050] 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.
[0051] Taking the example where the distance between the first section 305 and the support platform 100 is greater than the distance between the second section 306 and the support platform 100 and the photovoltaic module is a double-glass photovoltaic module, when cutting the glue layer, the first section 305 will cut the outer glue layer of the photovoltaic module away from the support platform 100. When the distance between the first section 305 and the support surface is too large, it will contact the glass. When the height of the first section 305 is too small from the support surface, it will contact the battery cell. At the same time, the second section 306 will be located on the inner glue layer of the photovoltaic module close to the support platform 100. When the distance between the second section 306 and the support surface is too large, it will contact the battery cell. When the distance between the second section 306 and the support surface is too small, it will contact the glass. Since the hardness of the glass and backplane in the photovoltaic module is greater than the hardness of the battery cell and the hardness of the battery cell is greater than the thickness of the glue layer, the tension when the cutting line accidentally contacts the glass will be greater than the tension when the cutting line accidentally contacts the battery cell. Here, the tension when the cutting line accidentally contacts the battery cell is defined as the first preset value, and the tension when the cutting line accidentally contacts the glass is defined as the second preset value, and the second preset value is greater than the first preset value.
[0052] Continuing with the example that the distance between the first section 305 and the support platform 100 is greater than the distance between the second section 306 and the support platform 100 and the photovoltaic module is a double-glass photovoltaic module, refer to Figures 1 to 5When the tension of the first section 305 is greater than the first preset value and less than the second preset value, it indicates that the distance between the first section 305 and the support surface is too small and is in contact with the battery cell. In this case, the distance between the first section 305 and the support surface needs to be increased. This can be achieved by increasing the inclination angle of the third pulley 303 in the thickness direction, thereby increasing the thickness distance between the first section 305 and the second section 306, so that the first section 305 is further away from the inner battery cell. To ensure the vertical cutting effect of the first section 305, the distance between the first pulley 301 and the support surface needs to be increased. At the same time, to avoid the impact of increasing the inclination angle of the third pulley 303 in the thickness direction on the distance between the second section 306 and the support surface, the distance between the third pulley 303 and the support surface needs to be increased to ensure that the position of the second section 306 and the support surface remains unchanged.
[0053] When the tension of the first section 305 is greater than the second preset value, it indicates that the distance between the first section 305 and the support surface is too large and in contact with the glass. In this case, the distance between the first section 305 and the support surface needs to be reduced. In this case, the inclination angle of the third pulley 303 in the thickness direction can be reduced, thereby reducing the distance between the first section 305 and the second section 306 in the thickness direction. This allows the first section 305 to be further away from the outer glass. To ensure the vertical cutting effect of the first section 305, the distance between the first pulley 301 and the support surface needs to be reduced. At the same time, to prevent the reduction of the inclination angle of the third pulley 303 in the thickness direction from affecting the distance between the second section 306 and the support surface, the distance between the third pulley 303 and the support surface needs to be reduced to ensure that the position of the second section 306 and the support surface remains unchanged.
[0054] 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 distance between the second section 306 and the support surface is too large and is in contact with the battery cell. In this case, the distance between the first section 305 and the support surface needs to be reduced. In this case, the inclination angle of the third pulley 303 in the thickness direction can be increased, increasing the thickness distance between the first section 305 and the second section 306, so that the second section 306 is further away from the outer battery cell. To ensure the vertical cutting effect of the second section 306, the distance between the second pulley 302 and the support surface needs to be increased. At the same time, to avoid the impact of increasing the inclination angle of the third pulley 303 in the thickness direction on the distance between the first section 305 and the support surface, the distance between the third pulley 303 and the support surface needs to be increased to ensure that the distance between the first section 305 and the support surface remains unchanged.
[0055] When the tension on the second section 306 exceeds the second preset value, it indicates that the distance between the second section 306 and the support surface is too small and in contact with the glass. In this case, the distance between the second section 306 and the support surface needs to be increased. In this case, the inclination angle of the third pulley 303 in the thickness direction can be reduced, reducing the thickness distance between the first section 305 and the second section 306, allowing the second section 306 to move further away from the inner glass. To ensure the vertical cutting effect of the second section 306, the distance between the second pulley 302 and the support surface needs to be increased. At the same time, to prevent the reduction of the inclination angle of the third pulley 303 in the thickness direction from affecting the distance between the first section 305 and the support surface, the distance between the third pulley 303 and the support surface needs to be reduced to ensure that the position of the first section 305 and the support surface remains unchanged.
[0056] When the tension of the first section 305 and the second section 306 changes at the same time, the above-mentioned improved adjustment methods can be combined with each other. For example, when the tension of the first section 305 is greater than the first preset value and when the tension on the second section 306 is greater than the second preset value, it means that the first section 305 is in contact with the battery cell and the second section 306 is in contact with the glass. The overall position of the cutting line is too close to the support surface. At this time, the distance between the first pulley 301, the second pulley 302 and the third pulley 303 and the support surface can be adjusted at the same time.
[0057] For another example, when the tension of the first section 305 is greater than the first preset value and when the tension of the second section 306 is greater than the first preset value, it means that the first section 305 and the second section 306 are both in contact with the battery cell, and the distance between the first section 305 and the second section 306 in the height direction is too small. In this case, it is necessary to increase the inclination angle of the third pulley 303 in the thickness direction to adjust the deflection angle of the third pulley 303. Figure 4 and Figure 5 At the same time, the distance between the first pulley 301 and the second pulley 302 and the support surface can be adjusted based on the distance between the third pulley 303 and the support surface.
[0058] In this way, during the process of cutting the adhesive layer, the distance between the first section 305 and the second section 306 and the supporting surface 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.
[0059] 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. In other embodiments, by changing the inclination angle of the third pulley 303 in the thickness direction, only the first section 305 or the second section 306 closer to the support surface can be used to cut a single adhesive layer. For example, in a single-glass photovoltaic module where the first section 305 extends farther from the support surface than the second section 306, if only the backsheet or glass of the single-glass photovoltaic module needs to be recycled, only one adhesive layer needs to be cut. By changing the inclination angle of the third pulley 303 in the thickness direction, the spacing between the first section 305 and the second section 306 in the thickness direction can be adjusted to increase the spacing between the first section 305 and the second section 306. When the spacing between the first section 305 and the second section 306 is sufficiently large, the second section 306 can be positioned to correspond to the adhesive layer to be cut. The second section 306 can then be used to cut a single adhesive layer in the single-glass photovoltaic module, allowing the first section 305 to avoid the photovoltaic module. Among them, the inclination angle of the third pulley 303 in the thickness direction can be greater than 5 degrees and less than 90 degrees. If the inclination angle of the third pulley 303 in the thickness direction is too small, the distance between the first section 305 and the second section 306 in the thickness direction will be too small, resulting in the first section 305 being unable to avoid the photovoltaic module and contacting the single-glass photovoltaic module. If the inclination angle of the third pulley 303 in the thickness direction is too large, the first section 305 or the second section 306 will easily detach from the third pulley 303, affecting the use of the cutting line device.
[0060] It should be noted that the present disclosure fixes the position of the photovoltaic module by the support platform 100 and the pressure plate 200. When a layer of glue is cut by one of the first section 305 or the second section 306, the other needs to avoid the pressure plate 200. At this time, one of the first pulley 301 and the second pulley 302 can be set on the same side of the support platform 100 as the third pulley 303, and the other can be set separately on the opposite side of the support platform 100. In this way, only one of the first section 305 or the second section 306 can be used to cut the photovoltaic module. During the movement of the pressure plate 200, the other of the first section 305 or the second section 306 will not contact the pressure plate 200, thereby avoiding obstruction of the photovoltaic module cutting operation.
[0061] 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 4 and Figure 5As a reference, the inclination angle of the third pulley 303 in the thickness direction can be reduced to 0 degrees, that is, the third pulley 303 is parallel to the movement direction of the photovoltaic module. At this time, the plane formed by the first section 305 and the second section 306 is also parallel to the movement direction of the photovoltaic module (that is, parallel to the support surface of the support platform 100). By adjusting the distance between the first pulley 301, the second pulley 302 and the third pulley 303 and the support surface, the first section 305 and the second section 306 can correspond to the position of the adhesive layer. In this way, the first section 305 and the second section 306 can pass through the same adhesive layer at the same time and cut the adhesive layer for a second time, which can improve the cutting effect and ensure that the layers on both sides of the adhesive layer are completely separated.
[0062] For example, refer to Figures 1 to 3 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 respectively through the second drive motor 406 and the third drive motor 407.
[0063] In other embodiments, the cutting device 300 may include 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, affecting the cutting effect. Spraying coolant toward the cutting line ensures that the cutting line temperature does not rise too high, preventing the adhesive layer from melting and solidifying on the cutting line, thereby ensuring the service life of the cutting line. Spraying coolant also reduces debris generated by cutting the adhesive layer, ensuring a clean environment.
[0064] For example, refer to Figure 1 and Figure 3 A roller 101 may be provided on the support platform 100. The roller 101 may be embedded in the support platform 100 and at least partially protrude from the surface of the support platform 100 facing the photovoltaic component. The roller 101 may be a driving roller for driving the photovoltaic component to move after the pressure plate 200 presses the photovoltaic component against the support platform 100, and the rotation rate of the roller 101 may be the same as the transmission rate of the supporting portion 500.
[0065] In other embodiments, reference Figure 1 and Figure 3The supporting part 500 can be two sections of conveyor belts set at intervals, and the interval between the two sections of conveyor belts can be used to avoid the adjusting part 400. The conveyor belt can be made of flexible material to flexibly support the bottom edge of the photovoltaic module to avoid damage or hard friction with the bottom edge of the photovoltaic module, and at the same time cause wear to the photovoltaic module and the conveyor belt.
[0066] For example, refer to Figure 1 and Figure 3 The cutting device may further include a guide rail and a positioning device 202. The positioning device 202 may be used to drive the pressing plate 200 toward or away from the support table 100, and the positioning device 202 may be movably disposed on the guide rail. The guide rail may include a first guide rail 201 disposed horizontally and a second guide rail 203 disposed vertically. One end of the first guide rail 201 may be slidably connected to the second guide rail 203. The pressing plate 200 may be disposed on the first guide rail 201 and may move along the extension direction of the first guide rail 201.
[0067] In the above embodiment, the first guide rail 201 provides lateral movement of the pressure plate, while the second guide rail 203 can be used to adjust the vertical positioning of the pressure plate. Due to the different types and specifications of photovoltaic modules, the photovoltaic modules have different heights when supported by the support portion 500. By moving the first guide rail 201 along the extension direction of the second guide rail 203, the pressure plate 200 can be positioned at the center of different photovoltaic modules, ensuring good stability when the pressure plate 200 is pressed against the photovoltaic module to the support surface.
[0068] 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.
[0069] 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: A support platform, comprising a vertically arranged support surface for abutting against one side of the vertically arranged photovoltaic module; a pressing plate, disposed opposite to the supporting surface, and used to press the photovoltaic assembly against the supporting surface; a cutting device, comprising a cutting line disposed between the support platform and the pressing plate, the cutting line being used to cut the adhesive layer in the photovoltaic module when the cutting device moves relative to the photovoltaic module; an adjusting portion connected to the cutting device and configured to adjust the position of the cutting line in a thickness direction; as well as The supporting portion is arranged at the bottom of the supporting platform, and the supporting portion is arranged perpendicular to the supporting surface, and is used to support the photovoltaic component from the bottom.
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 relative distance between the cutting line and the supporting surface of the supporting platform.
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 thickness 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 arranged on the top of the support platform, and the third pulley is rotatably arranged on the bottom of the support platform, 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 horizontally deflectable in the thickness direction, so that the first section and the second section are staggered in the thickness 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 direction perpendicular to the support platform and connected to the first pulley, and configured to adjust a distance of the first pulley relative to the support surface of the support platform according to the tension detected by the first tension sensor; a second telescopic rod extending in a direction perpendicular to the support platform and connected to the second pulley, for adjusting a distance of the second pulley from the support surface of the support platform according to the tension detected by the second tension sensor; and A first drive motor and a third telescopic rod, the output shaft of the first drive motor is connected to the third telescopic rod, the third pulley is sleeved on the third telescopic rod, the first drive motor drives the third pulley to deflect in the thickness direction through the third telescopic rod, and the third telescopic rod is used to adjust the extension distance of the third pulley relative to the supporting surface of the support platform.
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 support platform is provided with a roller, which is embedded in the support platform and at least partially protrudes from the surface of the support platform facing the photovoltaic module. The roller is a driving roller, which is used to drive the photovoltaic assembly to move when rotating, the supporting part is a conveyor belt, and the rotation speed of the roller is the same as the transmission speed of the supporting part.
10. The cutting device for photovoltaic modules according to claim 1, characterized in that: The cutting device further comprises a guide rail and a positioning device, wherein the positioning device is used to drive the pressing plate to approach or move away from the support table, and the positioning device is movably arranged on the guide rail; The guide rail includes a first guide rail placed horizontally and a second guide rail placed vertically. One end of the first guide rail is slidably connected to the second guide rail, and the pressure plate is arranged on the first guide rail.