A photovoltaic module lamination apparatus

Abstract

The application discloses a photovoltaic module laminating device, which comprises a lifting block arranged below a cross beam, a slot hole plate is fixed in the lifting block, a plurality of lifting slots are formed in the vertical direction on the slot hole plate, and the space between the lower wall of the slot hole plate and the lower wall of the lifting block is a working cavity; a plurality of independent laminating structures are arranged below the slot hole plate, each of the independent laminating structures can independently apply pressure to a photovoltaic panel, a pressure adjusting frame penetrating through the slot hole plate is arranged on the upper end of the lifting block, and the pressure adjusting frame can adjust the maximum pressure value applied to the photovoltaic panel by all the independent laminating structures. The laminating degree of the application can be adjusted, is suitable for photovoltaic panels of different specifications, meanwhile, the independent laminating structure can make each position of the photovoltaic panel receive appropriate laminating pressure, and greatly improves the laminating effect, laminating safety and the universality of the equipment.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module processing equipment technology, specifically a photovoltaic module laminating device. Background Technology

[0002] A solar photovoltaic module laminator is a mechanical device that presses EVA, solar cells, tempered glass, and backsheet into a rigid whole under high temperature and vacuum conditions. The laminator is one of the special production equipment for multilayer ceramic capacitors. Its function is to apply the principle of water uniformly transmitting pressure. By pressurizing the water in the sealed container, a high-pressure system is formed, which uniformly applies pressure to the capacitor bars placed in the water, making the structure dense and the surface flat, thus meeting the production process requirements.

[0003] In the photovoltaic panel production process, the laminating plates used in photovoltaic laminators are typically made of a flexible rubber material, with a flat lower surface facing the photovoltaic module. Existing photovoltaic panel laminators have the following drawbacks when pressing photovoltaic modules together:

[0004] 1. The optimal lamination pressure is different for different specifications of photovoltaic panels. The existing lamination pressure is fixed and cannot be adjusted. This can lead to the glass of the photovoltaic panel being crushed due to excessive lamination pressure or the lamination not being in place due to insufficient lamination pressure, which can easily damage the photovoltaic panel module.

[0005] 2. Due to differences in the pressure points applied to the photovoltaic panels by the laminator plates, or deviations in the contact angle between the laminator plates and the photovoltaic panels, the stress on the corner and center areas of the photovoltaic modules differs, resulting in significant differences in the thickness of the laminated photovoltaic modules in these areas. This leads to poor lamination quality and a high defect rate. Summary of the Invention

[0006] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a photovoltaic module lamination device with adjustable lamination pressure, suitable for photovoltaic panels of different specifications. Furthermore, the independent lamination structure ensures that each location on the photovoltaic panel receives appropriate lamination pressure, significantly improving lamination effect, lamination safety, and the versatility of the equipment.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0008] This invention provides a photovoltaic module lamination device, including a lifting block that is lifted and lowered below a crossbeam. A slotted plate is fixed inside the lifting block, and a plurality of lifting slots are formed on the slotted plate in the vertical direction. The space between the lower wall of the slotted plate and the lower wall of the lifting block is a working cavity. A plurality of independent lamination structures are arranged below the slotted plate, and each independent lamination structure can apply pressure to the photovoltaic panel individually. A pressure adjusting frame that penetrates the slotted plate is lifted and lowered at the upper end of the lifting block, and the pressure adjusting frame can adjust the maximum pressure value applied to the photovoltaic panel by all independent lamination structures.

[0009] Preferably, the independent laminated structure includes a lifting rod that slides inside the lifting groove. The lower end of the lifting rod passes through the lower wall of the lifting block and is always positioned below the lifting block. A laminated plate is fixed to the lower end of the lifting rod. A snap-fit ​​plate is provided inside the working cavity and sleeved on the lifting rod. The snap-fit ​​plate can snap onto the side wall of the lifting rod. A first spring is provided between the upper wall of the snap-fit ​​plate and the lower wall of the slotted plate and sleeved on the side wall of the lifting rod. Under the action of the pressure adjusting frame, the snap-fit ​​plate can slide freely on the side wall of the lifting rod.

[0010] Preferably, the snap-fit ​​plate has a central hole for fitting onto the side wall of the lifting rod, and two snap-fit ​​grooves are symmetrically provided on the side wall of the lifting rod. Two sliding grooves communicating with the snap-fit ​​grooves are symmetrically provided inside the snap-fit ​​plate. A sliding pin is slidably provided in the sliding groove. The end of the sliding pin away from the lifting rod is connected to the sliding groove through a second spring. The end of the sliding pin near the lifting rod is set with an inclined surface, and the direction of the inclined surface is downward from away from the lifting rod to near the lifting rod.

[0011] The upper wall of the sliding pin is provided with a sloping groove, and the sloping direction of the groove is downward from away from the lifting rod to near the lifting rod; the upper wall of the snap-fit ​​plate is provided with a through hole above the sloping groove, and a trigger block is installed in the through hole. The raising and lowering of the trigger block can drive the end of the sliding pin into or out of the snap-fit ​​groove.

[0012] Preferably, the pressure regulating frame includes a connecting plate horizontally disposed above the lifting block. The slotted plate has several through slots in the vertical direction. The number of through slots is the same as the number of trigger blocks, and all through slots are correspondingly disposed directly above the trigger blocks. A trigger rod is lifted and disposed in each through slot. The upper end of the trigger rod is fixed to the lower wall of the connecting plate, and the lower end of the trigger rod is disposed in the working cavity and located directly above the trigger block.

[0013] Preferably, the pressure regulating frame further includes several lead screws circumferentially arranged on the edge of the connecting plate. The lead screws are threadedly connected to the connecting plate. The lower end of the lead screw is rotatably disposed on the upper wall of the lifting block. The upper end of the lead screw is fixed with a regulating valve. The rotation of the lead screw drives the connecting plate and all the trigger rods to rise or fall.

[0014] Preferably, the lower wall edge of the laminate is chamfered.

[0015] Preferably, the lifting block is suspended below the crossbeam by a number of vertically arranged hydraulic rods.

[0016] The specific advantages of the photovoltaic module lamination device of the present invention are as follows:

[0017] 1. This invention, through its independent lamination structure, ensures that each location on the photovoltaic panel receives appropriate lamination pressure, resulting in a uniform thickness across the corner and center areas of the laminated photovoltaic module. This reduces the defect rate and improves the lamination effect.

[0018] 2. This invention adjusts the maximum pressure value of the laminating plate on the photovoltaic panel by adjusting the pressure adjustment frame, which can meet the lamination requirements of photovoltaic panels of different specifications. It avoids the phenomenon of crushing the glass of the photovoltaic panel due to excessive lamination pressure or incomplete lamination due to insufficient lamination pressure, which greatly improves the lamination safety and the versatility of the equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the initial state of the freestanding laminated structure of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0024] Figure 5 This is a schematic diagram of the maximum pressure triggering state of the independent laminated structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the independent laminated structure of the present invention in the pressure-removed state;

[0026] Figure 7 This is a top view of the snap-fit ​​plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the pressure regulating frame of the present invention;

[0028] Figure 9 for Figure 8 Enlarged view of section B in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Crossbeam, 2. Workbench, 3. Lifting block, 4. Hydraulic rod, 5. Connecting handle, 6. Slotted plate, 7. Lifting groove, 8. Working chamber, 9. Independent laminated structure, 10. Photovoltaic panel, 11. Pressure regulating frame, 12. Lifting rod, 13. Laminated plate, 14. Snap-fit ​​plate, 15. First spring, 16. Center hole, 17. Snap-fit ​​groove, 18. Slide groove, 19. Sliding pin, 20. Inclined groove, 21. Trigger block, 22. Connecting plate, 23. Through groove, 24. Trigger rod, 25. Lead screw, 26. Adjusting valve, 27. Second spring. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example:

[0033] like Figures 1 to 9 As shown, this invention provides a photovoltaic module lamination device, including a crossbeam 1 for fixing, a worktable 2 below the crossbeam 1, and a lifting block 3 capable of lifting and lowering between the worktable 2 and the crossbeam 1. The lifting block 3 is connected by several hydraulic rods 4, and the several hydraulic rods 4 work synchronously; as shown Figure 1 As shown, the lower end of the hydraulic rod 4 is fixedly connected to the lifting block 3 via the connecting handle 5.

[0034] As a further aspect of the present invention: a slotted plate 6 is fixed inside the lifting block 3. The slotted plate 6 is used to limit the movement direction of the inner wall structure of the lifting block 3 and to assist in the change of lamination pressure. The slotted plate 6 has several lifting slots 7 in the vertical direction. The space between the lower wall of the slotted plate 6 and the lower wall of the lifting block 3 is the working cavity 8. Several independent lamination structures 9 are arranged below the slotted plate 6. Each independent lamination structure 9 can apply pressure to the photovoltaic panel 10 individually. A pressure adjusting frame 11 that penetrates the slotted plate 6 is installed at the upper end of the lifting block 3. The pressure adjusting frame 11 can adjust the maximum pressure value applied to the photovoltaic panel 10 by all the independent lamination structures 9.

[0035] As a further embodiment of the present invention: the independent laminated structure 9 includes a lifting rod 12 that slides inside the lifting groove 7. The lower end of the lifting rod 12 passes through the lower wall of the lifting block 3 and is always positioned below the lifting block 3. A laminate plate 13 is fixed to the lower end of the lifting rod 12. During the lamination process, the lower wall of the laminate plate 13 contacts the upper wall of the photovoltaic panel 10. A snap-fit ​​plate 14 is provided in the working cavity 8 and sleeved on the lifting rod 12. The snap-fit ​​plate 14 can snap onto the side wall of the lifting rod 12. A first spring 15 is provided between the upper wall of the snap-fit ​​plate 14 and the lower wall of the slotted plate 6 and sleeved on the side wall of the lifting rod 12. When the laminate plate 13 is subjected to the reaction force of the photovoltaic panel 10, it moves upward relative to the lifting block 3. The distance between the snap-fit ​​plate 14 and the slotted plate 6 continuously decreases, and the first spring 15 is continuously compressed.

[0036] According to Hooke's Law, within the elastic limit of the first spring 15, the magnitude F of the elastic force of the first spring 15 is directly proportional to the deformation of the first spring 15.

[0037] That is, F = kx, where F is the elastic force of the first spring 15, k is the elastic coefficient of the first spring 15, and x is the change in length of the first spring 15 relative to its initial position (when the elastic force is zero).

[0038] It can be concluded that as the compression of the first spring 15 increases, the elastic force F of the first spring 15 gradually increases.

[0039] As a further aspect of the present invention: under the action of the pressure adjusting bracket 11, the snap-fit ​​plate 14 can slide freely on the side wall of the lifting rod 12.

[0040] Specifically:

[0041] like Figure 4 As shown, the snap-fit ​​plate 14 has a central hole 16 for fitting onto the side wall of the lifting rod 12. Two snap-fit ​​grooves 17 are symmetrically opened on the side wall of the lifting rod 12. Two sliding grooves 18 communicating with the snap-fit ​​grooves 17 are symmetrically arranged inside the snap-fit ​​plate 14. A sliding pin 19 is slidably arranged in the sliding groove 18. The end of the sliding pin 19 away from the lifting rod 12 is connected to the sliding groove 18 through a second spring 27. The end of the sliding pin 19 near the lifting rod 12 is set with an inclined surface. The direction of the inclined surface is downward from the direction away from the lifting rod 12 to the direction near the lifting rod 12.

[0042] To facilitate the fixing or separation of the locking plate 14 and the lifting rod 12, i.e., the end of the sliding pin 19 enters or leaves the locking groove 17, such as... Figure 4 As shown, the upper wall of the sliding pin 19 is provided with a sloping groove 20, and the sloping direction of the sloping groove 20 is downward from away from the lifting rod 12 to near the lifting rod 12; the upper wall of the snap-fit ​​plate 14 is provided with a through hole above the sloping groove 20, and a trigger block 21 is installed in the through hole. The lifting and lowering of the trigger block 21 can drive the end of the sliding pin 19 to enter or leave the snap-fit ​​groove 17.

[0043] To facilitate control of the raising and lowering of trigger block 21, such as Figure 2 and Figure 8 As shown, the pressure regulating frame 11 includes a connecting plate 22 horizontally arranged above the lifting block 3. The slotted plate 6 has several through slots 23 in the vertical direction. The number of through slots 23 is the same as the number of trigger blocks 21. All through slots 23 are arranged one-to-one above the trigger blocks 21. A trigger rod 24 is raised and lowered in each through slot 23. The upper end of the trigger rod 24 is fixed to the lower wall of the connecting plate 22, and the lower end of the trigger rod 24 is arranged in the working cavity 8 and located directly above the trigger block 21.

[0044] To facilitate the adjustment of the lifting frame, such as Figure 9 As shown, the pressure regulating frame 11 also includes several lead screws 25 circumferentially arranged on the edge of the connecting plate 22. The lead screws 25 are threadedly connected to the connecting plate 22. The lower end of the lead screw 25 is rotatably arranged on the upper wall of the lifting block 3. The upper end of the lead screw 25 is fixed with a regulating valve 26. The rotation of the lead screw 25 drives the connecting plate 22 and all the trigger rods 24 to rise or fall.

[0045] Furthermore, the lead screw 25 has a scale on its side wall. Without considering the gravity of the laminate 13 and the lifting rod 12, the scale value corresponds to the elastic force of the first spring 15 when the trigger rod 24 moves through the trigger block 21 and the sliding pin 19, that is, the pressure of the laminate 13 on the photovoltaic panel 10.

[0046] Furthermore, the lower edge of the laminate 13 is chamfered to prevent the edge of the laminate 13 from scratching or damaging the photovoltaic panel 10.

[0047] Working principle:

[0048] like Figures 3 to 6As shown in the figure, M is the lower wall of the lifting block 3, and N is the upper wall of the lifting block 3. The user rotates the regulating valve 26 according to the layer pressure requirements of the photovoltaic panel 10. The screw 25 rotates, causing the connecting plate 22 to rise and fall to the corresponding layer pressure scale value on the screw 25. The user places the photovoltaic panel 10 on the workbench 2, placing it completely under the laminate 13. The user controls the hydraulic rod 4 via a switch, causing the lifting block 3 to descend. When the lower wall of the laminate 13 contacts the photovoltaic panel 10 and applies pressure T, the laminate 13 receives a reaction force P from the photovoltaic panel 10. The lifting block 3 continues to descend, meaning the laminate 13 and the snap-fit ​​plate 14 move upward relative to the lifting block 3. The distance between the snap-fit ​​plate 14 and the slotted plate 6 continuously decreases, the first spring 15 is continuously compressed, and the elastic force F of the first spring 15 continuously increases. Without considering... Considering the external forces of the system and the weight of the structure itself, F, T, and P are equal in magnitude. When T increases to the size that optimizes the lamination effect of the photovoltaic panel 10, the trigger rod 24 contacts the trigger block 21 and engages it in the inclined groove 20. At this time, the two sliding pins 19 in the same locking plate 14 slide back to back in the sliding groove 18, and the sliding pins 19 disengage from the locking groove 17. At this time, the first spring 15 extends instantaneously, and the magnitudes of F, T, and P decrease instantaneously. The locking plate 14 returns to the bottom of the working chamber 8 under the action of the first spring 15. When lamination ends or is paused, the lifting rod 12 and the laminating plate 13 descend under their own weight. When the locking groove 17 aligns with the sliding groove 18 again, the end of the sliding pin 19 enters the locking groove 17 under the action of the second spring 27, and the trigger block 21 rises. At this time, the locking plate 14 and the lifting rod 12 are fixed again.

[0049] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A photovoltaic module lamination device, characterized in that, The system includes a lifting block (3) that is lifted and lowered below the crossbeam (1). A slotted plate (6) is fixed inside the lifting block (3). Several lifting slots (7) are opened on the slotted plate (6) in the vertical direction. The space between the lower wall of the slotted plate (6) and the lower wall of the lifting block (3) is a working chamber (8). Several independent laminated structures (9) are arranged below the slotted plate (6). Each independent laminated structure (9) can apply pressure to the photovoltaic panel (10) individually. A pressure regulating frame (11) that penetrates the slotted plate (6) is lifted and lowered at the upper end of the lifting block (3). The pressure regulating frame (11) can adjust the maximum pressure value applied to the photovoltaic panel (10) by all the independent laminated structures (9). The independent laminated structure (9) includes a lifting rod (12) that slides inside the lifting groove (7). The lower end of the lifting rod (12) passes through the lower wall of the lifting block (3) and is always located below the lifting block (3). A laminate plate (13) is fixed to the lower end of the lifting rod (12). A snap-fit ​​plate (14) is provided in the working cavity (8) and sleeved on the lifting rod (12). The snap-fit ​​plate (14) can snap onto the side wall of the lifting rod (12). A first spring (15) is provided between the upper wall of the snap-fit ​​plate (14) and the lower wall of the slotted plate (6) and sleeved on the side wall of the lifting rod (12). Under the action of the pressure adjustment frame (11), the snap-fit ​​plate (14) can slide freely on the side wall of the lifting rod (12). The snap-fit ​​plate (14) has a central hole (16) for fitting onto the side wall of the lifting rod (12). Two snap-fit ​​grooves (17) are symmetrically opened on the side wall of the lifting rod (12). Two sliding grooves (18) communicating with the snap-fit ​​grooves (17) are symmetrically arranged in the snap-fit ​​plate (14). A sliding pin (19) is slidably arranged in the sliding groove (18). The end of the sliding pin (19) away from the lifting rod (12) is connected to the sliding groove (18) through a second spring (27). The end of the sliding pin (19) near the lifting rod (12) is inclined, and the direction of the inclined surface is downward from away from the lifting rod (12) to near the lifting rod (12). The upper wall of the sliding pin (19) is provided with a sloping groove (20), and the sloping direction of the sloping groove (20) is downward from away from the lifting rod (12) to close to the lifting rod (12); the upper wall of the snap-fit ​​plate (14) is provided with a through hole above the sloping groove (20), and a trigger block (21) is provided in the through hole. The lifting and lowering of the trigger block (21) can drive the end of the sliding pin (19) to enter or leave the snap-fit ​​groove (17). The pressure regulating frame (11) includes a connecting plate (22) horizontally arranged above the lifting block (3). The slotted plate (6) has several through slots (23) in the vertical direction. The number of through slots (23) is the same as the number of trigger blocks (21). All through slots (23) are arranged one-to-one above the trigger block (21). A trigger rod (24) is raised and lowered in each through slot (23). The upper end of the trigger rod (24) is fixed to the lower wall of the connecting plate (22). The lower end of the trigger rod (24) is arranged in the working cavity (8) and located directly above the trigger block (21).

2. The photovoltaic module lamination device according to claim 1, characterized in that, The pressure regulating frame (11) also includes several lead screws (25) circumferentially arranged on the edge of the connecting plate (22). The lead screws (25) are threadedly connected to the connecting plate (22). The lower end of the lead screw (25) is rotatably arranged on the upper wall of the lifting block (3). The upper end of the lead screw (25) is fixed with a regulating valve (26). The rotation of the lead screw (25) drives the connecting plate (22) and all the trigger rods (24) to rise or fall.

3. The photovoltaic module lamination device according to claim 1, characterized in that, The lower edge of the laminate (13) is chamfered.

4. A photovoltaic module laminating device according to claim 1, characterized in that, The lifting block (3) is suspended below the crossbeam (1) by several vertically arranged hydraulic rods (4).

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