Photovoltaic panel recycling system

Abstract

The application relates to the technical field of photovoltaic module recycling, and provides a photovoltaic panel recycling system. The photovoltaic panel recycling system comprises a frame dismounting module and a separation module. The frame dismounting module comprises a workbench, a positioning piece and four telescopic mechanisms. The workbench is formed with a bearing surface for bearing the photovoltaic panel. The positioning piece is slidably arranged on the top side of the workbench in the vertical direction. The positioning piece can slide downward to abut against the photovoltaic panel, so that the photovoltaic panel is limited between the positioning piece and the bearing surface. The four telescopic mechanisms are arranged at four edges opposite to the four edges of the bearing surface and the frame of the photovoltaic panel, so that the telescopic mechanisms can abut against the inner side of the frame of the photovoltaic panel. The four telescopic mechanisms are configured to synchronously stretch or contract in the direction close to or away from the center of the bearing surface, so as to synchronously dismount the four edges of the photovoltaic panel. The separation module is arranged downstream of the frame dismounting module and is used for separating the glass and the silicon wafer of the photovoltaic panel. The four telescopic mechanisms synchronously dismount the four edges, improve the efficiency of recycling the photovoltaic panel, and avoid deformation of the frame.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module recycling technology, and in particular to a photovoltaic panel recycling system. Background Technology

[0002] The power generation performance of photovoltaic (PV) modules declines significantly with age, necessitating periodic replacement and recycling for resource reuse. A typical PV panel consists of a backsheet, silicon wafers, glass, and an aluminum frame. The frame is attached to the backsheet via snap-fit ​​or riveting, while the silicon wafers are laminated between the backsheet and the glass. During recycling, the frame must be completely disassembled to release the internal laminated structure before the glass and silicon wafers are separated and recycled.

[0003] However, existing frame removal equipment usually adopts a one-sided sequential removal method, that is, after removing one side of the frame, the photovoltaic panel needs to be rotated to continue removing the remaining frames. The operation of repeatedly adjusting the position of the components to remove the frames side by side is cumbersome and inefficient, affecting the efficiency of photovoltaic panel recycling, and is prone to frame deformation or even breakage, affecting the integrity rate of frame recycling. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a photovoltaic panel recycling system.

[0005] This application provides a photovoltaic panel recycling system, including a frame disassembly module and a separation module;

[0006] The frame disassembly module includes a workbench, a positioning component, and four telescopic mechanisms. The workbench has a bearing surface for supporting photovoltaic panels. The positioning component is slidably disposed on the top side of the workbench in a vertical direction. The positioning component can slide downward to abut against the photovoltaic panel, so that the photovoltaic panel is confined between the positioning component and the bearing surface.

[0007] The four telescopic mechanisms are disposed at the four edges of the bearing surface and the four frames of the photovoltaic panel respectively, so that the telescopic mechanisms can abut against the inner side of the frame of the photovoltaic panel. The four telescopic mechanisms are configured to extend and retract synchronously in a direction close to or away from the center of the bearing surface, so as to simultaneously disassemble the four frames of the photovoltaic panel.

[0008] The separation module is located downstream of the frame disassembly module and is used to separate the glass and silicon wafer of the photovoltaic panel.

[0009] Optionally, the telescopic mechanism includes a drive component and a pushing block;

[0010] The driving component is fixedly connected to the workbench and disposed on the bottom side of the bearing surface. The driving component has a telescopic end that can extend or retract along the direction close to or away from the center of the bearing surface. The pushing block is attached to the edge of the bearing surface and connected to the telescopic end, so that when the photovoltaic panel is placed on the bearing surface, the four pushing blocks abut against the inner sides of the four edges of the photovoltaic panel.

[0011] Optionally, the driving component includes multiple telescopic cylinders, which are spaced apart along the extension direction of corresponding edges. The output ends of the multiple telescopic cylinders are fixedly connected to the pushing block, and the output ends of the multiple telescopic cylinders extend and retract synchronously to drive the pushing block to move.

[0012] Optionally, the positioning component includes a hydraulic cylinder and an abutment plate. The worktable is connected to a mounting frame, which extends to the top side of the bearing surface. The hydraulic cylinder is mounted on the mounting frame, and the output end of the hydraulic cylinder is vertically opposite to the center of the bearing surface. The abutment plate is mounted on the conveying end of the hydraulic cylinder, so that the output end of the hydraulic cylinder moves vertically to move the abutment plate closer to or away from the bearing surface.

[0013] Optionally, the separation module includes a housing, and a set of pressing rollers, a cutting device, and a limiting member disposed within the housing;

[0014] The housing has a feed inlet and a discharge outlet on opposite sides in the horizontal direction, the pressing roller group is located on the side of the cutting device near the feed inlet, and the limiting member is located on the top side of the cutting device.

[0015] The feed inlet is used to allow the photovoltaic panel taken out from the frame disassembly module to enter the housing. The pressing roller group is used to drive the photovoltaic panel to move toward the discharge port. A channel is formed between the limiting member and the cutting device for the photovoltaic panel to pass through, and the limiting member and the cutting device limit the photovoltaic panel in the vertical direction.

[0016] The cutting device can remove the glass of the photovoltaic panel so that the silicon wafer of the photovoltaic panel can be discharged from the housing through the discharge port.

[0017] Optionally, the cutting device includes a guide rail, a drive unit, and a blade.

[0018] The top side of the blade is provided with a fixed blade. The guide rail is located on the side of the pressing roller group facing the discharge port and extends along the axial direction of the pressing roller group. The bottom side of the blade is slidably connected to the guide rail. The driving device is connected to the blade in a transmission manner. The driving device can drive the blade to slide back and forth along the guide rail to cut the glass of the photovoltaic panel.

[0019] Optionally, the blade plate is provided with a plurality of fixed blades, which are spaced apart along the axial direction of the pressing roller assembly, and a guide groove for storing glass fragments is formed between each pair of adjacent fixed blades.

[0020] Optionally, the limiting member includes a plurality of conveying rollers, which are spaced apart along the direction from the feed inlet toward the discharge outlet, and the axial direction of the conveying rollers is parallel to the axial direction of the pressing roller group; the plurality of conveying rollers can abut against the top side of the photovoltaic panel to restrict the upward movement of the photovoltaic panel.

[0021] Optionally, the separation module further includes a conveyor belt, a heating device, and two isolation covers disposed between the housing and the frame disassembly module;

[0022] One end of the conveyor belt faces the frame removal module, and the other end faces the feed inlet. The conveyor belt is used to transport the photovoltaic panels taken out from the frame removal module. The heating device is located on the top side of the conveyor belt, with the direction of the frame removal module toward the housing as the transport direction.

[0023] The two isolation covers are respectively disposed on the two sides of the conveyor belt perpendicular to the transport direction, and the isolation covers extend along the transport direction so that the heating device, the conveyor belt and the two isolation covers form a heating space for heating the photovoltaic panel.

[0024] Optionally, the photovoltaic panel recycling system further includes a controller, which is electrically connected to the frame removal module and the separation module to control the operation of the frame removal module and the separation module.

[0025] The technical solution provided in this application has the following advantages compared with the prior art:

[0026] The photovoltaic panel recycling system provided in this application includes a frame removal module and a separation module. The frame removal module has a worktable on which a photovoltaic panel can be placed. Positioning components abut against the photovoltaic panel to confine it to the supporting surface. Four telescopic mechanisms simultaneously apply a force to the four edges of the photovoltaic panel in a direction opposite to the center of the panel, causing the four edges to detach from the panel simultaneously. The separation module separates the glass and silicon wafers of the photovoltaic panel after the edges are removed, allowing for the systematic recycling of all components of the photovoltaic panel. The worktable, positioning components, and four telescopic mechanisms work together so that when the photovoltaic panel is confined to the supporting surface, the four telescopic mechanisms simultaneously push the four edges to detach from the panel. This avoids the need for repeated adjustments to the photovoltaic panel's position to remove each edge individually, simplifying the removal of multiple edges and improving efficiency, thus increasing the overall efficiency of photovoltaic panel recycling. Furthermore, the simultaneous force on all four edges prevents stress concentration from unilateral removal, ensuring the edges remain intact and less prone to deformation or breakage, thereby improving the integrity rate of the photovoltaic panel's edges during recycling. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the photovoltaic panel recycling system described in the embodiments of this application;

[0030] Figure 2 This is a schematic diagram of the structure of the frame-breaking module described in an embodiment of this application;

[0031] Figure 3 This is a top view of the workbench described in the embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the separation module described in an embodiment of this application;

[0033] Figure 5 This is a top sectional view of the separation module described in the embodiments of this application;

[0034] Figure 6 This is one of the side sectional views of the housing, pressing roller group, cutting device and limiting member after assembly according to the embodiments of this application;

[0035] Figure 7This is a second side sectional view of the housing, pressing roller group, cutting device and limiting member assembled according to the embodiments of this application;

[0036] Figure 8 This is a top view of the blade plate described in an embodiment of this application.

[0037] The components include: 1. Frame removal module; 11. Workbench; 111. Bearing surface; 12. Positioning component; 121. Hydraulic cylinder; 122. Abutment plate; 13. Telescopic mechanism; 131. Driving component; 132. Telescopic end; 133. Pushing block; 14. Mounting frame; 21. Housing; 211. Feed inlet; 212. Discharge outlet; 22. Pressing roller group; 23. Cutting device; 231. Guide rail; 232. Blade; 233. Driving device; 234. Fixed blade; 235. Guide trough; 24. Limiting component; 241. Conveying roller; 25. Collection bucket; 31. Conveyor belt; 32. Heating device; 33. Isolation cover; 4. Photovoltaic panel; 41. Frame. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0040] Reference Figures 1 to 8 As shown, this application embodiment provides a photovoltaic panel recycling system, including a frame dismantling module 1 and a separation module. The frame dismantling module 1 includes a workbench 11, a positioning member 12, and four telescopic mechanisms 13. The workbench 11 forms a bearing surface 111 for bearing a photovoltaic panel 4. The positioning member 12 is slidably disposed on the top side of the workbench 11 in a vertical direction. The positioning member 12 can slide downward to abut against the photovoltaic panel 4, so that the photovoltaic panel 4 is confined between the positioning member 12 and the bearing surface 111. The four telescopic mechanisms 13 are disposed at the four edges of the bearing surface 111 and the four frames 41 of the photovoltaic panel 4, respectively, so that the telescopic mechanisms 13 can abut against the inner side of the frames 41 of the photovoltaic panel 4. The four telescopic mechanisms 13 are configured to extend and retract synchronously in a direction close to or away from the center of the bearing surface 111, so as to simultaneously dismantle the four frames 41 of the photovoltaic panel 4. The separation module is disposed downstream of the frame dismantling module 1 and is used to separate the glass and silicon wafer of the photovoltaic panel 4.

[0041] Specifically, the workbench 11 can be a rectangular platform made of high-strength steel plate, with a flat bearing surface 111 processed on its top. The area of ​​the bearing surface 111 can be smaller than the area of ​​the standard photovoltaic panel 4, so that when the photovoltaic panel 4 is placed on the bearing surface 111, the central area of ​​the photovoltaic panel 4 fits against the bearing surface 111, and the four edges 41 of the photovoltaic panel 4 are on the outside of the bearing surface 111, so as to facilitate the four telescopic mechanisms 13 to push the four edges 41 simultaneously.

[0042] The aforementioned positioning element 12 can be a plate. A mounting bracket is provided on the workbench 11. The positioning element 12 is slidably connected to the mounting bracket in the vertical direction. The positioning element 12 can slide downward to abut against the photovoltaic panel 4 placed on the bearing surface 111, thereby clamping the photovoltaic panel 4 between the bearing surface 111 and the positioning element 12 to restrict the movement of the photovoltaic panel 4 relative to the bearing surface 111.

[0043] The mounting bracket described above can be equipped with a slide rail extending in the vertical direction. The positioning component 12 is slidably connected to the slide rail. Alternatively, the positioning component 12 can include a telescopic cylinder and a panel. The panel is connected to the telescopic end of the telescopic cylinder. The telescopic end can move the panel up and down by extending and retracting, so that the panel can abut against the top side of the photovoltaic panel 4 placed on the bearing surface 111.

[0044] The aforementioned bearing surface 111 can be rectangular. The four edges of the bearing surface 111 correspond one-to-one with the four frame edges 41 of the photovoltaic panel 4 and are parallel to each other. The telescopic mechanism 13 can be a telescopic hydraulic cylinder or a telescopic air cylinder. The telescopic hydraulic cylinder or telescopic air cylinder is located at the edge of the bearing surface 111, and its telescopic end is oriented away from the center of the bearing surface 111. Moving the telescopic end away from the bearing surface 111 allows it to abut against the inner side of the four frame edges 41 of the photovoltaic panel 4. Continuing to move the telescopic end away from the bearing surface 111 applies a force to the frame edges 41 away from the photovoltaic panel 4. The bearing surface 111 can also be of other shapes, as long as it has four edges corresponding to the four frame edges 41 of the photovoltaic panel 4.

[0045] Positioning component 12 restricts the movement of photovoltaic panel 4, and four telescopic mechanisms 13 simultaneously apply a force away from the center of photovoltaic panel 4 to the four frame 41, so that the four frame 41 of photovoltaic panel 4 can be disassembled at the same time.

[0046] The four hydraulic telescopic mechanisms 13 mentioned above can be symmetrically arranged on the four edges of the bearing surface 111. The telescopic end of the telescopic mechanism 13 can be installed with a block, which abuts against the inner side of the frame 41. Alternatively, the telescopic end of the telescopic mechanism 13 can be directly abutted against the inner side of the frame 41. The side of the frame 41 facing the center of the photovoltaic panel 4 is the inner side of the frame 41.

[0047] When the photovoltaic panel 4 is placed on the bearing surface 111, the distance between the edge of the bearing surface 111 and the corresponding frame 41 is the first spacing. When the center of the photovoltaic panel 4 is aligned with the center of the bearing surface 111, the first spacing corresponding to the four edges of the bearing surface 111 is equal. At this time, the telescopic ends of the four telescopic mechanisms 13 are all on the four edges of the bearing surface 111, so that when the telescopic ends of the four telescopic mechanisms 13 extend synchronously, the four telescopic ends can simultaneously abut against the four frames 41 and push the four frames 41 synchronously.

[0048] The separation module can be located behind the workstation of the frame removal module 1, and the frame removal module 1 and the separation module are connected by a conveyor belt. Alternatively, the photovoltaic panels 4 after frame removal can be manually placed into the separation module. Or, a robotic arm can be installed between the separation module and the frame removal module 1. The robotic arm can grab the photovoltaic panels 4 with their frames 41 removed in the frame removal module 1 and move the photovoltaic panels 4 into the separation module.

[0049] The separation module described above can be selected to include a pressure roller and a cutting blade. The pressure roller fixes the photovoltaic panel 4, and the cutting blade cuts the glass on the photovoltaic panel 4, so that the glass and silicon wafers of the photovoltaic panel 4 are separated from each other. Alternatively, the separation module can include a crushing roller and a screener. The crushing roller crushes the photovoltaic panel 4 after the frame 41 is removed, so that the glass and silicon wafers are broken. The glass and silicon wafer fragments are screened and separated from each other after passing through the screener, so as to recover the glass and silicon wafers respectively.

[0050] The photovoltaic panel recycling system provided in this application includes a frame dismantling module 1 and a separation module. The workbench 11 of the frame dismantling module 1 can hold a photovoltaic panel 4. The positioning member 12 abuts against the photovoltaic panel 4 to limit the photovoltaic panel 4 to the bearing surface 111. The four telescopic mechanisms 13 can simultaneously apply a force to the four frames 41 of the photovoltaic panel 4 in the direction away from the center of the photovoltaic panel 4, so that the four frames 41 are simultaneously disengaged from the photovoltaic panel 4. The separation module separates the glass and silicon wafer of the photovoltaic panel 4 after the frames 41 are dismantled, so as to systematically recycle the components of the photovoltaic panel 4. The workbench 11, positioning component 12, and four telescopic mechanisms 13 cooperate with each other so that when the photovoltaic panel 4 is confined on the bearing surface 111, the four telescopic mechanisms 13 can simultaneously push the four frame edges 41 to detach from the photovoltaic panel 4. This avoids the operation of repeatedly adjusting the position of the photovoltaic panel 4 to disassemble the photovoltaic panel 4 one by one, simplifies the operation of disassembling multiple frame edges 41 of the photovoltaic panel 4, improves the efficiency of disassembling multiple frame edges 41 of the photovoltaic panel 4, and thus improves the efficiency of recycling the photovoltaic panel 4. Furthermore, the four frame edges 41 are simultaneously subjected to force and detach from the photovoltaic panel 4, avoiding stress concentration from single-sided disassembly. The frame edges 41 are not easily deformed or broken and can remain intact, improving the recycling integrity rate of the frame edges 41 of the photovoltaic panel 4.

[0051] In specific use, the photovoltaic panel recycling system provided in this application embodiment places the photovoltaic panel 4 to be recycled on the bearing surface 111 of the workbench 11, with the center of the photovoltaic panel 4 coinciding with the center of the bearing surface 111. The telescopic ends of the four telescopic mechanisms 13 abut against the inner side of the four frame 41. The positioning member 12 moves downward to abut against the top side of the photovoltaic panel 4 on the bearing surface 111. The four telescopic mechanisms 13 are activated simultaneously, causing the telescopic ends of the four telescopic mechanisms 13 to extend synchronously to push against the four frame 41. The four frame 41 are simultaneously subjected to a force in the direction away from the center of the photovoltaic panel 4 and are disengaged from the photovoltaic panel 4, thus completing the operation of disassembling the frame 41 of the photovoltaic panel 4.

[0052] After the frame 41 is disassembled, the photovoltaic panel 4 is placed into the separation module to separate the glass and silicon wafer of the photovoltaic panel 4, thereby completing the operation of recycling the components of the photovoltaic panel 4.

[0053] Reference Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the telescopic mechanism 13 includes a drive member 131 and a push block 133; the drive member is fixedly connected to the worktable 11 and disposed on the bottom side of the bearing surface 111, the drive member 131 has a telescopic end 132 that can extend or retract along the direction close to or away from the center of the bearing surface 111, and the push block 133 is attached to the edge of the bearing surface 111 and connected to the telescopic end 132, so that when the photovoltaic panel 4 is placed on the bearing surface 111, the four push blocks 133 abut against the inner side of the four edges 41 of the photovoltaic panel 4.

[0054] With this configuration, the drive component 131 provides power for the movement of the push block 133. The push block 133 increases its contact area with the frame 41, reduces the pressure of the telescopic mechanism 13 on the frame 41, and avoids excessive force on local areas of the frame 41, which could cause it to bend, deform, or break.

[0055] Specifically, the drive component 131 can be a telescopic hydraulic cylinder or a telescopic pneumatic cylinder. The cylinder body of the drive component 131 is fixed to the bottom support of the worktable 11 via a flange. The telescopic end 132 of the drive component 131 can move relative to the cylinder body of the drive component 131. The telescopic end 132 is connected to a push block 133. Four push blocks 133 are located on the four edges of the bearing surface 111, and the edges of two adjacent push blocks 133 are beveled, so that two adjacent push blocks 133 can fit together.

[0056] The size of the aforementioned bearing surface 111 is smaller than the size of the photovoltaic panel 4, so that after the photovoltaic panel 4 is placed on the bearing surface 111, the edge frame 41 of the photovoltaic panel 4 is on the outside of the bearing surface 111. It is possible to select that the four pressing blocks 133 have the same size in their respective moving directions; it is possible to select that the size of the pressing blocks 133 matches the size of the photovoltaic panel 4 and the bearing surface 111, so that when the photovoltaic panel 4 is placed on the bearing surface 111, the center of the photovoltaic panel 4 coincides with the center of the bearing surface 111, and the four pressing blocks 133 abut against the inner sides of the four edge frames 41.

[0057] Two of the four driving components 131 are arranged opposite each other, and the remaining two driving components 131 are also arranged opposite each other, so that the four driving components 131 are symmetrically distributed. The telescopic end 132 of each driving component 131 is located on the side of the driving component 131 facing away from the center of the bearing surface 111, so that the telescopic end 132 can be connected to the pushing block 133 on the edge of the bearing surface 111. A panel can be selected as the bearing surface 111 on the worktable 11, and the driving component 131 is connected to the bottom side of the panel, or the driving component 131 is connected to the part of the worktable 11 located on the bottom side of the bearing surface 111. The driving component 131 is located on the bottom side of the bearing surface 111 so that the driving component 131 will not obstruct the photovoltaic panel 4 from being placed on the bearing surface 111.

[0058] The aforementioned pushing block 133 extends along the edge of the corresponding bearing surface 111 to increase the contact area between the pushing block 133 and the frame 41, reduce the pressure of the telescopic mechanism 13 on the frame 41, and avoid excessive local stress on the frame 41 and deformation.

[0059] Reference Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the driving member 131 includes a plurality of telescopic cylinders, which are spaced apart along the extension direction of the corresponding edges. The output ends of the plurality of telescopic cylinders are fixedly connected to the pushing block 133, and the output ends of the plurality of telescopic cylinders extend and retract synchronously to drive the pushing block 133 to move.

[0060] With this configuration, multiple telescopic cylinders can work together to drive the push block 133 to move, giving the push block 133 multiple force points when it moves, thus preventing the push block 133 from shaking and improving the stability of its movement.

[0061] Specifically, the telescopic cylinder can be either a hydraulic telescopic cylinder or a pneumatic telescopic cylinder. Three telescopic cylinders can be configured in parallel along each edge of the bearing surface 111, with the cylinder spacing evenly distributed according to the length of the corresponding edge of the photovoltaic panel 4; alternatively, other numbers of telescopic cylinders can be configured on each edge. The output ends of multiple telescopic cylinders are all connected to the push block 133, enabling multiple telescopic cylinders to jointly drive the push block 133 to move, thereby improving the stability of the push block 133 during movement.

[0062] Reference Figure 2 As shown, in some embodiments, the positioning member 12 includes a hydraulic cylinder 121 and an abutment plate 122. The worktable 11 is connected to a mounting frame 14, which extends to the top side of the bearing surface 111. The hydraulic cylinder 121 is mounted on the mounting frame 14, and the output end of the hydraulic cylinder 121 is vertically opposite to the center of the bearing surface 111. The abutment plate 122 is mounted on the conveying end of the hydraulic cylinder 121, so that the output end of the hydraulic cylinder 121 moves vertically to drive the abutment plate 122 closer to or away from the bearing surface 111.

[0063] With this configuration, the mounting bracket 14 provides a mounting base for the positioning component 12. The center-to-center arrangement of the hydraulic cylinder 121 and the bearing surface 111 ensures that the abutment plate 122 abuts against the center of the photovoltaic panel 4, preventing the abutment plate 122 from contacting the frame 41 of the photovoltaic panel 4 and affecting the removal of the frame 41. The large contact area between the abutment plate 122 and the photovoltaic panel 4 improves the positional stability of the photovoltaic panel 4 when it is confined between the positioning component 12 and the bearing surface 111, and also prevents the photovoltaic panel 4 from being damaged due to stress concentration.

[0064] Specifically, the mounting frame 14 can be a portal steel structure. The mounting frame 14 is set across the bearing surface 111 on the workbench 11. The mounting frame 14 can be equipped with a crossbeam. The crossbeam is set on the top side of the bearing surface 111 and is vertically opposite to the bearing surface 111.

[0065] The hydraulic cylinder 121 described above has an output end that can move up and down. The output end is located on the side of the hydraulic cylinder 121 facing the bearing surface 111. The output end is arranged opposite to the center of the bearing surface 111, so that the abutment plate 122 can be arranged opposite to the center of the bearing surface 111.

[0066] The area of ​​the aforementioned abutment plate 122 can be less than or equal to the area of ​​the bearing surface 111. The abutment plate 122 is a rectangular plate, so that when the abutment plate 122 abuts against the photovoltaic panel 4 on the bearing surface 111, the abutment plate 122 abuts against the central area of ​​the photovoltaic panel 4 without contacting the frame 41 of the photovoltaic panel 4.

[0067] The aforementioned abutment plate 122 may have a rubber layer on the side facing the bearing surface 111, or the abutment plate 122 may have a rubber layer on its corners, so that when the abutment plate 122 abuts against the photovoltaic panel 4 on the bearing surface 111, the rubber layer contacts the photovoltaic panel 4, thus avoiding damage to the photovoltaic panel 4.

[0068] Reference Figure 1 and Figures 4 to 8As shown, in some embodiments, the separation module includes a housing 21, and a pressing roller assembly 22, a cutting device 23, and a limiting member 24 disposed within the housing 21. The housing 21 has an inlet 211 and an outlet 212 on opposite sides in the horizontal direction. The pressing roller assembly 22 is disposed on the side of the cutting device 23 near the inlet 211, and the limiting member 24 is disposed on the top side of the cutting device 23. The inlet 211 is used to allow the photovoltaic panel 4 taken out from the frame removal module 1 to enter the housing 21. The pressing roller assembly 22 is used to drive the photovoltaic panel 4 to move toward the outlet 212. A channel for the photovoltaic panel 4 to pass through is formed between the limiting member 24 and the cutting device 23, and the limiting member 24 and the cutting device 23 limit the photovoltaic panel 4 in the vertical direction. The cutting device 23 can cut off the glass of the photovoltaic panel 4 so that the silicon wafer of the photovoltaic panel 4 is discharged from the housing 21 through the outlet 212.

[0069] With this configuration, the pressure roller assembly 22 drives the photovoltaic panel 4 toward the discharge port 212 and also limits the photovoltaic panel 4 in the vertical direction. The limiting member 24 restricts the photovoltaic panel 4 from moving upward, allowing the cutting device 23 to cut the bottom surface of the photovoltaic panel 4 to remove the glass on the photovoltaic panel 4. The remaining back plate and silicon wafer of the photovoltaic panel 4 can be discharged from the housing 21 through the discharge port 212. Through the cooperation of the pressure roller assembly 22, the cutting device 23 and the limiting member 24, the operation of automatically separating the glass and silicon wafer of the photovoltaic panel 4 is realized. After the photovoltaic panel 4 is put into the feed port 211, the silicon wafer can be collected at the discharge port 212, improving the automation level of separating the glass and silicon wafer of the photovoltaic panel 4.

[0070] Specifically, the interior of the housing 21 is hollow, and the space inside the housing 21 is used to accommodate the pressing roller group 22, the cutting device 23 and the limiting member 24. The housing 21 has a feed inlet 211 and a discharge outlet 212 on opposite sides in the horizontal direction, and the feed inlet 211 and the discharge outlet 212 are arranged opposite each other in the horizontal direction.

[0071] The aforementioned pressing roller group 22 can include two circular rollers extending in the horizontal direction and arranged at a distance in the vertical direction. After the photovoltaic panel 4 enters the feed port 211, it is clamped between the two circular rollers. The rotation of the circular rollers can drive the photovoltaic panel 4 to move toward the discharge port 212. The distance between the two circular rollers can be adjusted to accommodate photovoltaic panels 4 of different thicknesses.

[0072] The aforementioned cutting device 23 is arranged downstream of the pressing roller group 22, that is, the cutting device 23 is set at the outlet of the pressing roller group 22, so that the photovoltaic panel 4 can come into contact with the cutting device 23 after passing through the pressing roller group 22.

[0073] When the photovoltaic panel 4 passes through the pressing roller group 22, the glass of the photovoltaic panel 4 is located on the lower side of the silicon wafer, so that the cutting device 23 can cut the glass of the photovoltaic panel 4 on the bottom side of the photovoltaic panel 4. The glass of the photovoltaic panel 4 is cut off by the cutting device 23, so that the silicon wafer and the back plate on the photovoltaic panel 4 are discharged from the housing 21 through the discharge port 212.

[0074] The cutting device 23 described above can be a rotating shaft and a blade. The rotating shaft rotates inside the housing 21, and the blade is installed on the rotating shaft. The rotating shaft can cut the bottom surface of the photovoltaic panel 4, while the limiting member 24 abuts against the top surface of the photovoltaic panel 4 to restrict the photovoltaic panel 4 from moving upward, thus ensuring the cutting effect of the cutting device 23.

[0075] The cutting device 23 described above can also include a slide rail, a blade, and a blade. The slide rail is set inside the housing 21, the blade is slidably connected to the slide rail, and the blade is installed on the top side of the blade. The blade can cut the bottom surface of the photovoltaic panel 4 by sliding the blade back and forth on the slide rail.

[0076] When the cutting device 23 cuts, the blade cuts into the glass layer, causing the glass layer to break and detach from the back plate of the photovoltaic panel 4. The silicon wafer remains on the back plate and moves towards the discharge port 212 together with the back plate. Finally, the back plate and the silicon wafer are discharged from the housing 21 through the discharge port 212. The portion of the photovoltaic panel 4 that passes through the pressing roller group 22 will be cut by the cutting device 23. At this time, the remaining part of the photovoltaic panel 4 is still in the pressing roller group 22, so that the pressing roller group 22 has a limiting effect on the photovoltaic panel 4 in the vertical direction, improving the stability of the photovoltaic panel 4 when it is cut by the cutting device 23, and allowing the cutting device 23 to smoothly cut the glass on the photovoltaic panel 4.

[0077] The aforementioned limiting member 24 can be a plate extending from the feed inlet 211 toward the discharge outlet 212. After the photovoltaic panel 4 passes through the pressing roller group 22, the top side of the photovoltaic panel 4 abuts against the plate, so that the limiting member 24 provides vertical support for the photovoltaic panel 4. When the cutting device 23 cuts the photovoltaic panel 4, the photovoltaic panel 4 is subjected to an upward force, and the limiting member 24 restricts the upward movement of the photovoltaic panel 4 in the vertical direction, ensuring the cutting effect of the cutting device 23.

[0078] The bottom of the aforementioned housing 21 may be provided with a support, and a collection bucket 25 is placed inside the support. The bottom surface of the housing 21 is provided with an opening that communicates with the inside of the housing 21. The collection bucket 25 is arranged opposite to the opening, so that glass fragments inside the housing 21 can fall into the collection bucket 25 through the opening.

[0079] Reference Figures 5 to 8As shown, in some embodiments, the cutting device 23 includes a guide rail 231, a driving device 233, and a blade 232; the top side of the blade 232 is provided with a fixed blade 234, the guide rail 231 is disposed on the side of the pressing roller group 22 facing the discharge port 212 and extends along the axial direction of the pressing roller group 22, the bottom side of the blade 232 is slidably connected to the guide rail 231, the driving device 233 is drively connected to the blade 232, and the driving device 233 can drive the blade 232 to slide back and forth along the guide rail 231 to cut the glass of the photovoltaic panel 4.

[0080] With this configuration, the drive device 233 drives the blade plate 232 to reciprocate, which enables the fixed blade to cut the glass on the photovoltaic panel 4, causing the glass to break and separate from the silicon wafer. The movement of the blade plate 232 achieves the effect of automatically cutting the glass on the photovoltaic panel 4, improving the automation level of the cutting device 23 in removing the glass from the photovoltaic panel 4.

[0081] Specifically, the guide rail 231 can be connected to the inner wall of the housing 21, the axis of the pressing roller assembly 22 is perpendicular to the direction from the feed inlet 211 to the discharge outlet 212, and the bottom surface of the blade 232 can be provided with a sliding groove, which cooperates with the guide rail 231 to allow the blade 232 to slide on the guide rail 231. Alternatively, a slider can be slidably connected to the guide rail 231, and the bottom surface of the blade 232 and the slider can be fixedly connected by bolts or rivets, allowing the blade 232 to slide on the guide rail 231.

[0082] The aforementioned drive device 233 can be a motor with a telescopic end that can extend and retract along the extension direction of the guide rail 231. The telescopic end is connected to the blade plate 232, allowing the telescopic end to retract and drive the blade plate 232 to slide on the guide rail 231. Alternatively, the drive device 233 can be a servo motor with a lead screw. The lead screw extends along the extension direction of the guide rail 231, and the blade plate 232 has a screw hole that engages with the lead screw thread. The servo motor drives the lead screw to rotate, which in turn drives the blade plate 232 to move along the guide rail 231 under the action of the thread. Changing the rotation direction of the lead screw driven by the servo motor changes the sliding direction of the blade plate 232 on the guide rail 231, thus realizing the reciprocating sliding of the blade plate 232.

[0083] The blade plate 232 can be provided with multiple spaced metal pieces as fixed blades, or the blade plate 232 can be provided with multiple conical structures as fixed blades. The blades protrude from the top surface of the blade plate 232 and cut into the bottom surface of the photovoltaic panel 4. The blade plate 232 reciprocates to make the blades cut the glass of the photovoltaic panel 4, causing the glass on the photovoltaic panel 4 to break and separate from the silicon wafer.

[0084] Reference Figure 5 and Figure 8As shown, in some embodiments, the blade plate 232 is provided with a plurality of fixed blades 234, which are spaced apart along the axial direction of the pressing roller group 22, and a guide groove 235 for storing glass fragments is formed between each pair of adjacent fixed blades 234.

[0085] Specifically, multiple fixed blades 234 are equidistant on the blade plate 232, and the space between adjacent fixed blades 234 forms a guide groove 235. Glass fragments generated during cutting fall into the guide groove 235, allowing the guide groove 235 to store glass fragments and preventing glass fragments from splashing inside the housing 21.

[0086] When the bottom surface of the housing 21 is provided with an opening, and when the bottom side of the housing 21 is provided with a collection bucket 25, the bottom of the guide trough 235 can be provided with a through hole, so that the fragments in the guide trough 235 fall to the bottom of the housing 21 through the through hole, and the fragments fall into the collection bucket 25 through the opening.

[0087] Reference Figure 5 and Figure 8 As shown, in some embodiments, the limiting member 24 includes a plurality of conveying rollers 241, which are spaced apart along the direction from the feed inlet 211 toward the discharge outlet 212. The axial direction of the conveying rollers 241 is parallel to the axial direction of the pressing roller group 22. The plurality of conveying rollers 241 can abut against the top side of the photovoltaic panel 4 to limit the upward movement of the photovoltaic panel 4.

[0088] With this configuration, multiple conveying rollers 241 can provide multi-point support for the photovoltaic panel 4 between the pressing roller group 22 and the discharge port 212. During the movement of the photovoltaic panel 4, the conveying rollers 241 can rotate to reduce the resistance to the movement of the photovoltaic panel 4. The rotation of the conveying rollers 241 also has a guiding effect on the movement of the photovoltaic panel 4.

[0089] Specifically, multiple conveying rollers 241 with equal diameters and at the same height can be selected and spaced apart so that the photovoltaic panel 4 can contact at least one conveying roller 241 during the process of moving from the pressing roller group 22 to the discharge port 212. During the movement of the photovoltaic panel 4, the conveying rollers 241 rotate to reduce the resistance of the photovoltaic panel 4 moving toward the discharge port 212.

[0090] Reference Figure 5 and Figure 8As shown, in some embodiments, the separation module further includes a conveyor belt 31, a heating device 32, and two isolation covers 33 disposed between the housing 21 and the frame removal module 1; one end of the conveyor belt 31 faces the frame removal module 1, and the other end faces the feed inlet 211. The conveyor belt 31 is used to transport the photovoltaic panel 4 taken out from the frame removal module 1. The heating device 32 is disposed on the top side of the conveyor belt 31, with the direction of the frame removal module 1 toward the housing 21 as the transport direction; the two isolation covers 33 are respectively disposed on the two sides of the conveyor belt 31 perpendicular to the transport direction. The isolation covers 33 extend along the transport direction so that the heating device 32, the conveyor belt 31, and the two isolation covers 33 form a heating space for heating the photovoltaic panel 4.

[0091] With this configuration, the heating device 32 can heat the photovoltaic panel 4 placed on the conveyor belt 31 to soften the adhesive layer in the photovoltaic panel 4, reducing the difficulty of subsequent glass cutting; the operation of heating the photovoltaic panel 4 and the operation of transporting the photovoltaic panel 4 into the housing 21 are carried out simultaneously, saving time for recycling the photovoltaic panel 4.

[0092] Specifically, the conveyor belt 31 can be selected to include a high-temperature resistant silicone belt and two rotating shafts. The two rotating shafts are spaced apart, and the high-temperature resistant silicone belt is sleeved on the two rotating shafts. The high-temperature resistant silicone belt can be rotated by rotating the rotating shafts. One rotating shaft is located at the frame removal module 1, and the other rotating shaft is located at the housing 21.

[0093] The aforementioned heating device 32 is an infrared array. A support frame is installed on the outer side of the conveyor belt 31, extending to the top side of the conveyor belt 31. The heating device 32 is mounted on the support frame to heat the side of the conveyor belt 31 facing the heating device 32. After the photovoltaic panel 4 with the frame 41 removed is placed on the conveyor belt 31, the conveyor belt 31 transports the photovoltaic panel 4 to the feed inlet 211. The heating device 32 can heat the photovoltaic panel 4 on the conveyor belt 31 to soften the adhesive layer bonding the glass and silicon wafer inside the photovoltaic panel 4, facilitating subsequent glass cutting operations.

[0094] The time that the photovoltaic panel 4 stays on the conveyor belt 31 is the heating time. The heating time of the photovoltaic panel 4 can be adjusted by adjusting the running speed of the conveyor belt 31.

[0095] Long strip-shaped isolation covers 33 can be set on both sides of the conveyor belt 31. The inner side of the isolation cover 33 is covered with an aluminum foil reflective layer, so that a hot air circulation channel is formed between the two isolation covers 33. The air heated by the heating device 32 can be kept between the two isolation covers 33 to improve the efficiency of heating the photovoltaic panel 4 on the conveyor belt 31.

[0096] In some embodiments, the photovoltaic panel recycling system further includes a controller electrically connected to the frame removal module 1 and the separation module to control the operation of the frame removal module 1 and the separation module.

[0097] With this configuration, the controller can control the operation of the frame removal module 1 and the separation module, enabling the photovoltaic recycling system to automatically remove the frame 41 of the photovoltaic panel 4 and separate the glass and silicon wafer of the photovoltaic panel 4.

[0098] Specifically, the controller can be selected to include a chip or a computer. The controller is electrically connected to the frame removal module 1 and the separation module via wires. Alternatively, both the frame removal module 1 and the separation module can be equipped with wireless modules, so that the frame removal module 1 and the separation module are electrically connected to the controller via wireless connection.

[0099] The aforementioned drive unit 131 and hydraulic cylinder 121 can be electrically connected to the controller, so that the controller controls the output power of the drive unit 131 and hydraulic cylinder 121 to control the pushing force applied by the positioning member 12 to the photovoltaic panel 4 on the bearing surface 111, and to control the force applied by the pushing block 133 to the frame 41; the drive device 233 can be electrically connected to the controller, and the controller can control the output power of the drive device 233, thereby controlling the moving speed and moving frequency of the blade 232, so as to control the cutting efficiency of the blade 232 on the photovoltaic panel 4; the heating device 32 and conveyor belt 31 can be electrically connected to the controller, and the controller controls the conveying efficiency of the conveyor belt 31, which can control the heating time of the photovoltaic panel 4 in the heating space, and the controller controls the heating power of the heating device 32, which can control the efficiency of the heating device 32 in heating the photovoltaic panel 4.

[0100] In specific use, the photovoltaic panel recycling system provided in this application embodiment places the photovoltaic panel 4 to be recycled on the bearing surface 111 of the workbench 11, with the center of the photovoltaic panel 4 coinciding with the center of the bearing surface 111. The pushing blocks 133 of the four telescopic mechanisms 13 abut against the inner side of the four frame 41. The hydraulic cylinder 121 drives the abutment plate 122 to move downward to abut against the top surface of the photovoltaic panel 4. The four driving components 131 are started synchronously, so that the four telescopic ends 132 move synchronously in a direction away from the center of the bearing surface 111, so that the four pushing blocks 133 push against the four frame 41 at the same time. The four frame 41 are simultaneously subjected to force and disengage from the photovoltaic panel 4, thereby completing the operation of disassembling the frame 41 of the photovoltaic panel 4.

[0101] After the photovoltaic panel 4 with the frame 41 removed is placed on the conveyor belt 31, the conveyor belt 31 transports the photovoltaic panel 4 to the feed port 211. During the transport process, the heating device 32 heats the photovoltaic panel 4 to soften the adhesive layer in the photovoltaic panel 4. After passing through the feed port 211, the photovoltaic panel 4 is clamped in the pressing roller group 22. The pressing roller group 22 drives the photovoltaic panel 4 to move towards the discharge port 212. The photovoltaic panel 4 between the pressing roller group 22 and the discharge port 212 is limited between the cutting device 23 and the limiting member 24. The driving device 233 drives the blade 232 to reciprocate, so that multiple fixed blades 234 cut the glass on the bottom surface of the photovoltaic panel 4. The glass on the bottom surface of the photovoltaic panel 4 breaks and falls into the guide trough 235. Multiple conveying rollers 241 roll during the movement of the photovoltaic panel 4. After the photovoltaic panel 4 cuts off the glass, it is discharged from the housing 21 through the discharge port 212. The staff collects the photovoltaic panel 4 discharged from the discharge port 212 to collect silicon wafers.

[0102] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0103] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic panel recycling system, characterized in that, It includes a frame-removal module (1) and a separation module; The frame disassembly module (1) includes a workbench (11), a positioning component (12), and four telescopic mechanisms (13). The workbench (11) has a bearing surface (111) for supporting the photovoltaic panel (4). The positioning component (12) is slidably disposed on the top side of the workbench (11) in the vertical direction. The positioning component (12) can slide downward to abut against the photovoltaic panel (4) so ​​that the photovoltaic panel (4) is limited to the position between the positioning component (12) and the bearing surface (111). The four telescopic mechanisms (13) are disposed at the four edges of the bearing surface (111) and the four frames (41) of the photovoltaic panel (4) respectively, so that the telescopic mechanisms (13) can abut against the inner side of the frame (41) of the photovoltaic panel (4). The four telescopic mechanisms (13) are configured to extend and retract synchronously in a direction close to or away from the center of the bearing surface (111) to simultaneously disassemble the four frames (41) of the photovoltaic panel (4). The separation module is located downstream of the frame removal module (1) and is used to separate the glass and silicon wafer of the photovoltaic panel (4).

2. The photovoltaic panel recycling system according to claim 1, characterized in that, The telescopic mechanism (13) includes a driving component (131) and a pushing block (133); The driving component (131) is fixedly connected to the worktable (11) and disposed on the bottom side of the bearing surface (111). The driving component (131) has a telescopic end (132) that can extend or retract along the direction close to or away from the center of the bearing surface (111). The pushing block (133) is attached to the edge of the bearing surface (111) and connected to the telescopic end (132) so that when the photovoltaic panel (4) is placed on the bearing surface (111), the four pushing blocks (133) abut against the inner side of the four edges (41) of the photovoltaic panel (4).

3. The photovoltaic panel recycling system according to claim 2, characterized in that, The driving component (131) includes multiple telescopic cylinders, which are spaced apart along the extension direction of their corresponding edges. The output ends of the multiple telescopic cylinders are fixedly connected to the push block (133), and the output ends of the multiple telescopic cylinders extend and retract synchronously to drive the push block (133) to move.

4. The photovoltaic panel recycling system according to claim 1, characterized in that, The positioning component (12) includes a hydraulic cylinder (121) and an abutment plate (122). The worktable (11) is connected to a mounting frame (14), which extends to the top side of the bearing surface (111). The hydraulic cylinder (121) is mounted on the mounting frame (14), and the output end of the hydraulic cylinder (121) is vertically opposite to the center of the bearing surface (111). The abutment plate (122) is mounted on the conveying end of the hydraulic cylinder (121), so that the output end of the hydraulic cylinder (121) moves vertically to drive the abutment plate (122) closer to or away from the bearing surface (111).

5. The photovoltaic panel recycling system according to claim 1, characterized in that, The separation module includes a housing (21), a pressing roller group (22), a cutting device (23), and a limiting member (24) disposed within the housing (21); The housing (21) has a feed inlet (211) and a discharge outlet (212) on opposite sides in the horizontal direction, the pressing roller group (22) is located on the side of the cutting device (23) near the feed inlet (211), and the limiting member (24) is located on the top side of the cutting device (23). The feed inlet (211) is used to allow the photovoltaic panel (4) taken out from the frame removal module (1) to enter the housing (21). The pressing roller group (22) is used to drive the photovoltaic panel (4) to move toward the discharge port (212). A channel is formed between the limiting member (24) and the cutting device (23) for the photovoltaic panel (4) to pass through. The limiting member (24) and the cutting device (23) limit the photovoltaic panel (4) in the vertical direction. The cutting device (23) can cut off the glass of the photovoltaic panel (4) so ​​that the silicon wafer of the photovoltaic panel (4) can be discharged from the housing (21) through the discharge port (212).

6. The photovoltaic panel recycling system according to claim 5, characterized in that, The cutting device (23) includes a guide rail (231), a driving device (233), and a blade (232); The top side of the blade (232) is provided with a fixed blade (234). The guide rail (231) is located on the side of the pressing roller group (22) facing the discharge port (212) and extends along the axial direction of the pressing roller group (22). The bottom side of the blade (232) is slidably connected to the guide rail (231). The driving device (233) is connected to the blade (232) in a transmission manner. The driving device (233) can drive the blade (232) to slide back and forth along the guide rail (231) to cut the glass of the photovoltaic panel (4).

7. The photovoltaic panel recycling system according to claim 6, characterized in that, The blade plate (232) is provided with a plurality of fixed blades (234), which are spaced apart along the axial direction of the pressing roller group (22), and a guide groove (235) for storing glass fragments is formed between each pair of adjacent fixed blades (234).

8. The photovoltaic panel recycling system according to claim 5, characterized in that, The limiting member (24) includes a plurality of conveying rollers (241), which are spaced apart along the direction from the feed inlet (211) toward the discharge outlet (212). The axial direction of the conveying rollers (241) is parallel to the axial direction of the pressing roller group (22). The plurality of conveying rollers (241) can abut against the top side of the photovoltaic panel (4) to restrict the photovoltaic panel (4) from moving upward.

9. The photovoltaic panel recycling system according to claim 5, characterized in that, The separation module also includes a conveyor belt (31), a heating device (32), and two isolation covers (33) disposed between the housing (21) and the frame disassembly module (1); One end of the conveyor belt (31) faces the frame removal module (1), and the other end faces the feed inlet (211). The conveyor belt (31) is used to transport the photovoltaic panel (4) taken out from the frame removal module (1). The heating device (32) is located on the top side of the conveyor belt (31) with the direction of the frame removal module (1) towards the housing (21) as the transport direction. The two isolation covers (33) are respectively disposed on the two sides of the conveyor belt (31) perpendicular to the transport direction. The isolation covers (33) extend along the transport direction so that the heating device (32), the conveyor belt (31) and the two isolation covers (33) form a heating space for heating the photovoltaic panel (4).

10. The photovoltaic panel recycling system according to claim 1, characterized in that, The photovoltaic panel recycling system also includes a controller, which is electrically connected to the frame removal module (1) and the separation module to control the operation of the frame removal module (1) and the separation module.

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