Solar cell adhesive film removing structure
By spraying micro-nano bubbles onto the surface of solar cells to remove the adhesive film, the problem of easy breakage of thin solar cells during the film removal process is solved, and effective adhesive film removal under low pressure is achieved, reducing the risk of cell breakage.
Patent Information
- Application Number
- CN202422814214.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing technologies require high spraying pressure to remove the masking film from the surface of solar cells, which makes the thin cells easily damaged and makes it difficult to ensure the removal effect while reducing costs.
A micro-nano bubble generator is used to inject the film removal solution, and the micro-nano bubbles are sprayed onto the surface of the solar cell through a spraying mechanism. The shear force and air flotation of the bubbles are used to corrode and remove the film, reducing the spraying pressure.
Effective removal of the adhesive film reduces the spraying pressure on solar cells, decreases the risk of breakage, and improves the durability of thin solar cells.
Smart Images
Figure CN223816368U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to solar cell wet manufacturing technical field, concretely relates to a solar cell removes adhesive film structure. BACKGROUND
[0002] At present, the solar power generation industry is developing towards the direction of efficiency improvement and cost reduction, and the preparation of electrodes by traditional silk screen printing conductive paste will consume a large amount of precious metal silver, which is one of the problems that need to be solved urgently. Direct deposition of copper by electroplating to form grid electrodes instead of silk screen printing conductive silver paste is one of the main directions to solve the above problems. The electroplating process includes mask layer coating, pattern transfer, electroplating, and film removal. After electroplating is completed, the mask layer adhesive film on the surface of the solar cell needs to be removed. In the past, most manufacturers will draw on the experience of the printed circuit board industry and select horizontal equipment to spray the film removal liquid onto the surface of the cell, which can wet and corrode the adhesive film. A certain spraying pressure is needed to help the adhesive film residue to separate from the surface of the cell. With the cell becoming thinner and thinner, a high spraying pressure will cause the cell to deform or even break. The present application uses micro-nano bubble to enhance the adhesive film removal effect, which can reduce the required spraying pressure in this process and achieve the same effect of effectively removing the adhesive film.
[0003] The prior art is to remove the adhesive film by spraying the film removal liquid through the spraying pipeline to the solar cell, so that the film removal liquid fully contacts and corrodes the mask layer adhesive film on the surface of the solar cell.
[0004] A large pressure is required to spray the film removal liquid to remove the mask layer adhesive film on the solar cell. However, the solar cell is becoming thinner and thinner in order to reduce the manufacturing cost, and the thickness is only close to 100 microns, which causes the current solar cell to be unable to withstand a large spraying pressure, otherwise the cell is prone to breakage.
[0005] Therefore, a solar cell adhesive film removal structure is proposed. CONTENT OF THE UTILITY MODEL
[0006] The utility model discloses a solar cell adhesive film removal structure to solve the problems in the above background technology.
[0007] The utility model discloses a solar cell adhesive film removal structure to solve the problems in the above background technology.
[0008] A solar cell adhesive film removal structure, comprising a rack and a water tank, and a conveying mechanism is arranged in the rack to convey the solar cell, a cover body is arranged on the rack, and a spraying mechanism is movably connected to the cover body, the input end of the spraying mechanism is connected to the inside of the water tank, and a micro-nano bubble generator is fixedly installed on the surface of the water tank to inject micro-nano bubbles into the film removal liquid in the water tank.
[0009] Further, a reciprocating mechanism is arranged on the cover body and the spraying part of the spraying mechanism to drive the spraying part of the spraying mechanism to move laterally and reciprocally.
[0010] Further, the spraying mechanism comprises a plurality of groups of spraying pipes movably inserted on the cover body, an input end of each spraying pipe is connected with a horizontal pipe, and the horizontal pipe is fixedly connected with a vertical pipe, the vertical pipe is inserted into the interior of the water tank, and the vertical pipe is provided with a pump body.
[0011] Further, the micro-nano bubble generator is connected with a pipeline, and the pipeline is inserted into the interior of the water tank.
[0012] Further, the reciprocating mechanism comprises a motor fixedly installed on the cover body, an output end of the motor is fixedly connected with a reciprocating threaded rod, the reciprocating threaded rod is threadedly sleeved with a movable plate, and the plurality of groups of spraying pipes are fixed to the movable plate.
[0013] Further, the spraying pipe is arranged in parallel with the solar cell piece on the conveying mechanism.
[0014] The utility model discloses the beneficial effects are as follows:
[0015] Through the micro-nano bubble generator, a large amount of micro-nano bubbles are injected into the defilming liquid, the bubble particle size in the defilming liquid is determined by the particle size analyzer to be 1-1000 nanometers, the bubble quantity is about 10 5 ~ 10 8 Each milliliter, then the defilming liquid is sprayed to the surface of the solar cell piece on the conveying mechanism through the spraying mechanism, the bubbles contact the solar cell piece, part of the bubbles are broken, a large shear force is generated between the defilming liquids, the mask layer glue film on the solar cell piece is corroded, loosened or even removed, part of the bubbles are adsorbed on the surface of the glue film fragments, and the glue film fragments are floated away from the surface of the solar cell piece to produce the air float phenomenon, meanwhile, under the impact of the defilming liquid, the mask layer glue film is taken away from the surface of the solar cell piece, the corrosion and removal effect of the defilming liquid on the mask layer glue film can be enhanced, the spraying pressure acting on the solar cell piece is reduced, and the breakage probability is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;
[0017] Fig. 2 It is the side view of the utility model;
[0018] Fig. 3 It is the side sectional view of the utility model;
[0019] Fig. 4 It is the bottom view of the cover body of the utility model;
[0020] Reference numeral: 1, rack; 2, conveying mechanism; 3, cover body; 4, spraying mechanism; 401, spraying pipe; 402, cross pipe; 403, vertical pipe; 404, pump body; 5, water tank; 6, micro-nano bubble generator; 7, reciprocating mechanism; 701, motor; 702, reciprocating threaded rod; 703, movable plate. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.
[0023] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0024] In the description of the embodiments of the present application, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings, or the directions or position relationships in which the product of the present application is usually placed, which are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular direction, be constructed and operated in a particular direction, therefore, cannot be understood as limiting the present application.
[0025] As Figs. 1 to 4As shown, a solar cell film removal structure includes a rack 1 and a water tank 5, and the rack 1 is provided with a conveying mechanism 2 for conveying solar cell pieces, the rack 1 is provided with a cover body 3, and the cover body 3 is movably connected with a spraying mechanism 4, the input end of the spraying mechanism 4 is connected with the inside of the water tank 5, and the surface of the water tank 5 is fixedly connected with a micro-nano bubble generator 6 for injecting micro-nano bubbles into the film removal liquid in the water tank 5. More specifically, the film removal liquid is added to the inside of the water tank 5, a large amount of micro-nano bubbles is injected into the film removal liquid by the micro-nano bubble generator 6, the bubble particle size in the film removal liquid is determined by a particle size analyzer to be 1-1000 nanometers, the bubble quantity is about 10 5 ~10 8 each milliliter, and then the film removal liquid is sprayed onto the surface of the solar cell pieces on the conveying mechanism 2 by the spraying mechanism 4, the bubbles contact the solar cell pieces, part of the bubbles are broken, a large shear force is generated between the film removal liquids, the mask film on the solar cell pieces is corroded, loosened or even removed, part of the bubbles are adsorbed on the surface of the film fragments, and air float phenomenon occurs to make the film fragments float away from the surface of the solar cell pieces, under the impact of the film removal liquid, the mask film is taken away from the surface of the solar cell pieces, the corrosion and removal effect of the film removal liquid on the mask film can be enhanced, the spraying pressure acting on the solar cell pieces is reduced, and the probability of breaking is reduced.
[0026] The cover body 3 and the spraying part of the spraying mechanism 4 are provided with a reciprocating mechanism 7 for driving the spraying part of the spraying mechanism 4 to move laterally and reciprocally. More specifically, the spraying part of the spraying mechanism 4 can be driven to move laterally and reciprocally by the reciprocating mechanism 7, so that the film removal liquid can be uniformly sprayed onto the solar cell pieces.
[0027] The spraying mechanism 4 includes a plurality of groups of spraying pipes 401 movably connected with the cover body 3, the input end of the spraying pipe 401 is connected with a horizontal pipe 402, the horizontal pipe 402 is fixedly connected with a vertical pipe 403, the vertical pipe 403 is connected with the inside of the water tank 5, and the vertical pipe 403 is provided with a pump body 404. More specifically, the film removal liquid in the water tank 5 is introduced into the inside of the spraying pipe 401 by the pump body 404 through the vertical pipe 403 and the horizontal pipe 402, and the film removal liquid is sprayed onto the solar cell pieces by the spraying pipe 401.
[0028] The output end of the micro-nano bubble generator 6 is connected with a pipeline, and the pipeline is connected with the inside of the water tank 5. More specifically, the output end of the micro-nano bubble generator 6 is connected with the pipeline, and the end of the pipeline is located in the inside of the water tank 5, so that a large amount of micro-nano bubbles is injected into the film removal liquid in the water tank 5 by the micro-nano bubble generator 6.
[0029] The reciprocating mechanism 7 comprises a motor 701 fixedly installed on the cover body 3, the output end of the motor 701 is fixedly connected with a reciprocating threaded rod 702, the surface of the reciprocating threaded rod 702 is threadedly sleeved with a movable plate 703, and a plurality of spray pipes 401 are fixed to the movable plate 703. More specifically, the motor 701 drives the reciprocating threaded rod 702 to rotate, the movable plate 703 is moved reciprocatingly through the surface of the reciprocating threaded rod 702 being threadedly sleeved, and the spray pipe 401 is moved reciprocatingly transversely through the movable plate 703, so that the defilming chemical liquid is uniformly sprayed onto the surface of the solar cell.
[0030] The spray pipe 401 is arranged in parallel with the solar cell on the conveying mechanism 2. More specifically, a plurality of spray pipes 401 correspond to the solar cell, so that the surface of the solar cell can be sprayed with the defilming chemical liquid.
[0031] In summary, the defilming chemical liquid is added into the water tank 5, a large amount of micro-nano bubbles are injected into the defilming chemical liquid through the micro-nano bubble generator 6, the bubble particle size in the defilming chemical liquid is 1-1000 nanometers, and the bubble quantity is about 10 5 ~10 8 per milliliter, then the defilming chemical liquid is sprayed onto the surface of the solar cell on the conveying mechanism 2 through the spraying mechanism 4, the bubbles contact the solar cell, part of the bubbles are broken, a large shear force is generated between the defilming chemical liquids, the mask layer film on the solar cell is corroded, loosened or even removed, part of the bubbles are adsorbed on the surface of the film fragments, and the film fragments are floated away from the surface of the solar cell to produce air floating, meanwhile, under the impact of the defilming chemical liquid, the mask layer film is taken away from the surface of the solar cell, the corrosion and removal effect of the defilming chemical liquid on the mask layer film can be enhanced, the spraying pressure acting on the solar cell is reduced, and the probability of the broken piece is reduced.
[0032] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.
Claims
1. A structure for removing the adhesive film from a solar cell, characterized in that, Including frame (1) and water tank (5), and the frame (1) is equipped with conveying mechanism (2) inside, be used for conveying solar cell piece, the frame (1) is provided with cover body (3), and the cover body (3) is movably inserted with spraying mechanism (4), the input end of the spraying mechanism (4) is inserted in the inside of water tank (5), the surface of the water tank (5) is fixedly installed with micro-nano bubble generator (6), to inject micro-nano bubble into the film-removing liquid in the water tank (5).
2. The structure for removing the adhesive film of a solar cell according to claim 1, wherein The cover body (3) and the spraying part of the spraying mechanism (4) are provided with reciprocating mechanism (7), to drive the spraying part of the spraying mechanism (4) to move laterally reciprocating.
3. The structure for removing the adhesive film of a solar cell according to claim 1, wherein The spraying mechanism (4) includes multiple groups of spraying pipes (401) movably inserted in the cover body (3), the input end of the spraying pipe (401) is connected with cross pipe (402), and the cross pipe (402) is fixedly connected with vertical pipe (403), the vertical pipe (403) is inserted into the inside of the water tank (5), and the vertical pipe (403) is provided with pump body (404).
4. The structure for removing the adhesive film of a solar cell according to claim 1, wherein The output end of the micro-nano bubble generator (6) is connected with pipeline, and the pipeline is inserted into the inside of the water tank (5).
5. The structure for removing the adhesive film of a solar cell according to claim 2, wherein The reciprocating mechanism (7) includes motor (701) fixedly installed on the cover body (3), the output end of the motor (701) is fixedly connected with reciprocating screw rod (702), the surface of the reciprocating screw rod (702) is threadedly sleeved with movable plate (703), and multiple groups of spraying pipes (401) are fixed with movable plate (703).
6. The structure for removing the adhesive film of a solar cell according to claim 3, wherein The spraying pipe (401) is arranged in parallel with the solar cell piece on the conveying mechanism (2).