A crystalline silicon cell back surface n-layer film attaching device

Abstract

The application provides a crystalline silicon cell back N-layer film attaching device and relates to the technical field of crystalline silicon cells. The crystalline silicon cell back N-layer film attaching device comprises a base and a placing seat, the top of the base is fixedly connected with a sliding rail, the top of the sliding rail is provided with a ball bearing, and the bottom of the placing seat is provided with a sliding groove. The sliding rail, the placing seat, the sliding groove, the extrusion groove, the handle, the sliding rod, the limiting block, the rotating shaft, the compression wheel, the rubber ring, the extrusion plate, the first compression spring, the mounting groove and the mounting plate are arranged, the handle is used to control the sliding of the placing seat on the sliding rail, the compression wheel is moved from the extrusion groove to the top of the placing seat, the first compression spring is elastically deformed at the moment, the film and the crystalline silicon cell on the mounting plate are extruded by the reaction of the first compression spring, the film is attached to the crystalline silicon cell, the structural design is reasonable, the operation is simple, and the problem of high cost caused by the use of a pneumatic cylinder or a hydraulic cylinder is solved.

Description

Technical Field

[0001] This invention relates to the field of crystalline silicon battery technology, specifically to a device for bonding an N-layer film on the back of a crystalline silicon battery. Background Technology

[0002] Crystalline silicon cells generally refer to crystalline silicon solar cells. Solar energy is an inexhaustible and renewable energy source for humankind. It is also a clean energy source that does not produce any environmental pollution. Among the effective utilization of solar energy, solar photovoltaic utilization is one of the fastest-growing and most dynamic research areas in recent years, and it is one of the most prominent projects. During the manufacturing process of crystalline silicon cells, an N-layer film is attached to the back of the cell. This N-layer film not only has a protective function but also provides reliable insulation and long-term anti-aging properties, effectively extending the overall lifespan of the crystalline silicon cell.

[0003] Currently, when applying films to crystalline silicon cells, mechanical components such as cylinders or hydraulic cylinders are used to attach the films to the cells. However, these cylinders require corresponding pneumatic or hydraulic systems to provide the necessary pressure, resulting in excessively high manufacturing costs. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an N-layer film lamination device for the back of crystalline silicon solar cells, which solves the problem that the cylinders or hydraulic cylinders used in the lamination process require corresponding pneumatic or hydraulic systems to provide air or hydraulic pressure, resulting in excessively high manufacturing costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a device for bonding an N-layer film on the back of a crystalline silicon solar cell, comprising a base and a placement seat. A slide rail is fixedly connected to the top of the base, and a ball bearing is disposed on the top of the slide rail. A sliding groove is disposed at the bottom of the placement seat, and the placement seat is slidably connected to the slide rail via the sliding groove. A handle is fixedly connected to the right side wall of the placement seat. An extrusion groove and an installation groove are disposed on the top of the placement seat, with the extrusion groove located to the left of the installation groove. The left side wall of the extrusion groove is a vertical side wall, and the right side wall of the extrusion groove is an inclined side wall with an angle of 45-60 degrees to the horizontal plane. The top of the base... The slide rail is fixedly connected to two columns, which are symmetrically arranged on the front and rear sides. A horizontal plate is fixedly connected to the top of the columns. Two slide rods are slidably connected inside the horizontal plate. A rotating shaft is fixedly connected between the side walls of the two slide rods and is located below the horizontal plate. A pressure roller is rotatably connected to the circumference of the rotating shaft. A rubber ring is fitted on the circumference of the pressure roller. A limit block is fixedly connected to the top of the slide rod and is located above the horizontal plate. A pressing plate is provided below the horizontal plate and is fixedly connected to the two slide rods. A first compression spring is fitted on the circumference of the slide rod and is located between the pressing plate and the horizontal plate.

[0008] The mounting slot is provided with a mounting plate. The top of the mounting plate is fixedly connected to a placement plate, a receiving block, and a movable cavity. The receiving block is fixedly connected to the left side wall of the placement plate. The movable cavity is located on the front and rear sides of the placement plate. A limit rod is fixedly connected between the left and right sides of the movable cavity. A slider is slidably connected to the circumferential surface of the limit rod. A positioning plate is fixedly connected to the top of the slider. A second compression spring is sleeved on the circumferential surface of the limit rod, and the second compression spring is located on the right side of the slider.

[0009] The top of the placement base is threaded with fastening bolts, which are located on the front and rear sides of the mounting groove. The mounting plate has threaded holes inside that match the fastening bolts.

[0010] Preferably, the top of the base is fixedly connected with a first baffle and a second baffle, the first baffle is located on the right side of the slide rail, the second baffle is located on the left side of the slide rail, and the bottom of the base is fixedly connected with feet.

[0011] Preferably, both the slide rail and the slide groove have T-shaped sides, and the slide rail and the slide groove are compatible.

[0012] Preferably, both the mounting groove and the side of the mounting plate are convex, and the mounting groove is adapted to the mounting plate, with the top of the mounting plate flush with the top of the placement seat.

[0013] Preferably, the upright column and the cross plate are arranged in a "冂" shape, and the upright column is located in the middle of the base.

[0014] Preferably, the extrusion groove is arranged corresponding to the pressing wheel and is adapted to the pressing wheel.

[0015] Preferably, the sliding rod is a square rod, the front shape of the receiving block is triangular, and the top end of the receiving block is flush with the top of the placing plate.

[0016] Preferably, the bottom of the positioning plate is in contact with the mounting plate, the positioning plate is slidably connected to the mounting plate, and the inner wall of the positioning plate is in contact with the placing plate.

[0017] (III) Beneficial effects

[0018] The present invention provides a device for laminating the N-layer film on the back of a crystalline silicon cell. It has the following beneficial effects:

[0019] 1. In the present invention, by setting the slide rail, placing seat, chute, extrusion groove, handle, sliding rod, limiting block, rotating shaft, pressing wheel, rubber ring, extrusion plate, first compression spring, mounting groove and mounting plate, and using the handle to control the sliding of the placing seat on the slide rail, the pressing wheel moves from the extrusion groove to the top of the placing seat. At this time, the first compression spring undergoes elastic deformation, and the reaction force of the first compression spring is used to control the pressing wheel to press the film and the crystalline silicon cell on the mounting plate, so as to stick the film on the crystalline silicon cell. The structure design is reasonable, the operation is simple, and it effectively solves the problem of high cost caused by using cylinders or hydraulic cylinders.

[0020] 2. In the present invention, by setting the movable cavity, limiting rod, slider, positioning plate and second compression spring, and when the pressing wheel moves to the position of the positioning plate, the pressing wheel presses the positioning plate, thereby controlling the sliding of the positioning plate inside the movable cavity, avoiding the positioning plate from obstructing the movement of the pressing wheel during the film laminating process, and improving the flexibility of the positioning plate.

[0021] 3. In the present invention, by setting the mounting groove and fastening bolts, it is convenient to replace the mounting plate according to the model of the crystalline silicon cell, facilitating the film laminating operation for different models of crystalline silicon cells and improving the practicability of the device.

[0022] 4. In the present invention, by setting balls on the slide rail, which is mainly used to reduce the friction force when the placing seat slides, making it more labor-saving for the staff to push the placing seat. Description of the drawings

[0023] Figure 1 It is a side view of a device for laminating the N-layer film on the back of a crystalline silicon cell proposed by the present invention;

[0024] Figure 2This is a schematic diagram of the base structure of an N-layer film bonding device for the back of a crystalline silicon battery proposed in this invention;

[0025] Figure 3 This is a schematic diagram of the placement base structure of an N-layer film bonding device for the back of a crystalline silicon battery proposed in this invention;

[0026] Figure 4 for Figure 1 Schematic diagram of structure A in the middle;

[0027] Figure 5 This is a top view of the mounting plate of an N-layer film bonding device for the back of a crystalline silicon battery proposed in this invention;

[0028] Figure 6 This is a schematic diagram of the positioning plate structure of an N-layer film bonding device for the back of a crystalline silicon battery proposed in this invention.

[0029] Figure 7 This is a partial structural side view of a crystalline silicon solar cell back N-layer film bonding device proposed in this invention;

[0030] Figure 8 for Figure 7 Schematic diagram of structure B in the middle.

[0031] The components are as follows: 1. Base; 2. Slide rail; 3. Ball bearing; 4. Placement seat; 5. Slide groove; 6. Extrusion groove; 7. Handle; 8. Column; 9. Horizontal plate; 10. Slide rod; 11. Limiting block; 12. Rotating shaft; 13. Pressure roller; 14. Rubber ring; 15. Extrusion plate; 16. First compression spring; 17. Mounting groove; 18. Mounting plate; 19. Placement plate; 20. Receiving block; 21. Movable cavity; 22. Limiting rod; 23. Slider; 24. Positioning plate; 25. Second compression spring; 26. Fastening bolt; 27. Threaded hole; 28. First baffle; 29. ​​Second baffle; 30. Foot. Detailed Implementation

[0032] 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.

[0033] Example:

[0034] like Figure 1-8As shown in the figure, an N-layer film laminating device for the back side of a crystalline silicon cell provided by an embodiment of the present invention includes a base 1 and a placing seat 4. A slide rail 2 is fixedly connected to the top of the base 1. The arrangement of the slide rail 2 and the chute 5 mainly limits the sliding direction of the placing seat 4, making the placing seat 4 slide smoothly and avoiding the deviation of the placing seat 4 during movement, which may affect the quality of film laminating. A ball 3 is arranged on the top of the slide rail 2. The arrangement of the ball 3 is mainly used to reduce the friction force when the placing seat 4 slides, making it more labor-saving for the staff to push the placing seat 4. A chute 5 is arranged at the bottom of the placing seat 4, and the placing seat 4 is slidably connected to the slide rail 2 through the chute 5. The side shapes of both the slide rail 2 and the chute 5 are T-shaped, and the slide rail 2 and the chute 5 are adapted to each other. A handle 7 is fixedly connected to the right side wall of the placing seat 4. The handle 7 is mainly used to control the sliding of the placing seat 4 on the slide rail 2. An extrusion groove 6 and a mounting groove 17 are arranged on the top of the placing seat 4, and the extrusion groove 6 is located on the left side of the mounting groove 17. The mounting groove 17 is mainly used for the installation of a plate 18. The left side wall of the extrusion groove 6 is a vertical side wall, and the right side wall of the extrusion groove 6 is an inclined side wall, and the included angle between the inclined side wall and the horizontal plane is 45 - 60 degrees. The arrangement of the inclined side wall facilitates the movement of the pressure wheel 13 from the bottom of the extrusion groove 6 to the top of the placing seat 4. Two columns 8 are fixedly connected to the top of the base 1, and the two columns 8 are symmetrically arranged on the front and rear sides of the slide rail 2. A cross plate 9 is fixedly connected to the top of the column 8. The column 8 and the cross plate 9 are arranged in a "冂" shape, and the column 8 is located in the middle position of the base 1. Two slide bars 10 are slidably connected inside the cross plate 9. The slide bars 10 are square bars, and a rotating shaft 12 is fixedly connected between the side walls of the two slide bars 10, and the rotating shaft 12 is located below the cross plate 9. A pressure wheel 13 is rotatably connected to the circumferential surface of the rotating shaft 12. The extrusion groove 6 and the pressure wheel 13 are correspondingly arranged, and the extrusion groove 6 and the pressure wheel 13 are adapted to each other. A rubber ring 14 is sleeved on the circumferential surface of the pressure wheel 13. The arrangement of the rubber ring 14 mainly protects the film. A limiting block 11 is fixedly connected to the top of the slide bar 10, and the limiting block 11 is located above the cross plate 9. The arrangement of the limiting block 11 mainly limits the slide bar 10 to prevent the slide bar 10 from falling off the cross plate 9. An extrusion plate 15 is arranged below the cross plate 9, and the extrusion plate 15 is fixedly connected to the two slide bars 10. The arrangement of the extrusion plate 15 facilitates the first compression spring 16 to control the slide bar 10 to drive the pressure wheel 13 to move downward. When the pressure wheel 13 is at the bottom of the extrusion groove 6, the first compression spring 16 is in an initial state. When the pressure wheel 1 is at the position on the top of the placing seat 4, the first compression spring 16 is in a compressed state, and the pressure wheel 13 squeezes the film under the action of the first compression spring 16, thereby laminating the film on the back side of the crystalline silicon cell. A first compression spring 16 is sleeved on the circumferential surface of the slide bar 10, and the first compression spring 16 is located between the extrusion plate 15 and the cross plate 9;

[0035] The mounting slot 17 is internally provided with a mounting plate 18. Both the mounting slot 17 and the mounting plate 18 have convex side shapes and are compatible with each other. The top of the mounting plate 18 is flush with the top of the placement seat 4, facilitating the movement of the pressure roller 13 from the placement seat 4 onto the mounting plate 18. The top of the mounting plate 18 is fixedly connected to a placement plate 19, a receiving block 20, and a movable cavity 21. The receiving block 20 is fixedly connected to the left side wall of the placement plate 19. The front of the receiving block 20 is triangular, and its top is flush with the top of the placement plate 19, facilitating the movement of the pressure roller 13 from the mounting plate 18 onto the placement plate 19 for film application. The movable cavity 21 is located on the front and rear sides of the placement plate 19. A limit rod 22 is fixedly connected between the left and right sides of the movable cavity 21. The limit rod 22 and the slider 23 mainly limit the positioning plate 24, allowing the positioning plate 24 to slide smoothly inside the movable cavity 21. The limiting rod 22 is slidably connected to a slider 23 on its circumferential surface. A positioning plate 24 is fixedly connected to the top of the slider 23. The top surface of the positioning plate 24 is concave, which is used to position the crystalline silicon cell and film on the placement plate 19. The positioning plate 24 is located in the middle left of the placement plate 19. The pressure roller 13 applies the film from left to right. When the pressure roller 13 contacts the positioning plate 24, it squeezes the positioning plate 24, causing the positioning plate 24 to move to the right, so as to avoid the positioning plate 24 blocking the movement of the pressure roller 13. The bottom of the positioning plate 24 is in contact with the mounting plate 18, and the positioning plate 24 is slidably connected to the mounting plate 18. The inner wall of the positioning plate 24 is in contact with the placement plate 19. A second compression spring 25 is sleeved on the circumferential surface of the limiting rod 22. The second compression spring 25 is located to the right of the slider 23. The second compression spring 25 is always in a compressed state, and the reaction force of the second compression spring 25 is used to control the positioning plate 24 to be in contact with the placement plate 19.

[0036] The top of the mounting base 4 is threaded with a fastening bolt 26, and the fastening bolt 26 is located on the front and rear sides of the mounting groove 17. The mounting plate 18 is provided with a threaded hole 27 that matches the fastening bolt 26. The fastening bolt 26 and the threaded hole 27 facilitate the replacement of the mounting plate 18 and make it easy to replace the mounting plate 18 with different models according to the model of the crystalline silicon cell.

[0037] The top of the base 1 is fixedly connected with a first baffle 28 and a second baffle 29. The first baffle 28 is located on the right side of the slide rail 2, and the second baffle 29 is located on the left side of the slide rail 2. The bottom of the base 1 is fixedly connected with a foot 30. The first baffle 28 and the second baffle 29 mainly limit the placement seat 4. When the placement seat 4 contacts the first baffle 28, the pressure roller 13 is located at the bottom of the extrusion groove 6. When the placement seat 4 contacts the second baffle 29, the pressure roller 13 just presses the film completely. The placement seat 4 is in contact with the first baffle 28 in the initial state.

[0038] Working principle: In use, first place the crystalline silicon cell with the back side facing up on the placement plate 19, then place the film to be applied on the back of the crystalline silicon cell. Then, control the placement seat 4 to move to the left on the slide rail 2 by using the handle 7. At the same time, the pressure roller 13 moves from the bottom of the extrusion groove 6 along the inclined side wall to the top of the placement seat 4. At this time, the first compression spring 16 is in a compressed state. Then, continue to push the placement seat 4 to move, so that the pressure roller 13 performs the film application operation. When the pressure roller 13 contacts the positioning plate 24, the pressure roller 13 pushes the positioning plate 24 to the right (the positioning plate 24 moves to the right relative to the placement plate 19). When the placement seat 4 contacts the second baffle 29, the film application is completed. Then, move the placement seat 4 to the initial position by using the handle 7. At the same time, the positioning plate 24 returns to the initial position under the action of the second compression spring 25. Finally, the crystalline silicon cell can be removed.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for bonding an N-layer film on the back of a crystalline silicon solar cell, comprising a base (1) and a placement seat (4), characterized in that: The top of the base (1) is fixedly connected to a slide rail (2), and the top of the slide rail (2) is provided with a ball bearing (3). The bottom of the placement seat (4) is provided with a sliding groove (5), and the placement seat (4) is slidably connected to the slide rail (2) through the sliding groove (5). A handle (7) is fixedly connected to the right side wall of the placement seat (4). The top of the placement seat (4) is provided with a pressing groove (6) and a mounting groove (17), and the pressing groove (6) is located to the left of the mounting groove (17). The left side wall of the pressing groove (6) is a vertical side wall, and the right side wall of the pressing groove (6) is a sloping side wall, and the angle between the sloping side wall and the horizontal plane is 45-60 degrees. The top of the base (1) is fixedly connected to two columns (8), and the two columns (8) are symmetrically arranged on the front and rear sides of the slide rail (2). A horizontal plate (9) is fixedly connected to the top of the plate. Two sliding rods (10) are slidably connected inside the horizontal plate (9). A rotating shaft (12) is fixedly connected between the side walls of the two sliding rods (10). The rotating shaft (12) is located below the horizontal plate (9). A pressure roller (13) is rotatably connected to the circumferential surface of the rotating shaft (12). A rubber ring (14) is sleeved on the circumferential surface of the pressure roller (13). A limit block (11) is fixedly connected to the top of the sliding rod (10). The limit block (11) is located above the horizontal plate (9). A pressing plate (15) is provided below the horizontal plate (9). The pressing plate (15) is fixedly connected to the two sliding rods (10). A first compression spring (16) is sleeved on the circumferential surface of the sliding rod (10). The first compression spring (16) is located between the pressing plate (15) and the horizontal plate (9). The mounting slot (17) is provided with a mounting plate (18). The top of the mounting plate (18) is fixedly connected to a placement plate (19), a receiving block (20), and a movable cavity (21). The receiving block (20) is fixedly connected to the left side wall of the placement plate (19). The movable cavity (21) is located on the front and rear sides of the placement plate (19). A limiting rod (22) is fixedly connected between the left and right sides of the movable cavity (21). A slider (23) is slidably connected to the circumferential surface of the limiting rod (22). A positioning plate (24) is fixedly connected to the top of the slider (23). A second compression spring (25) is sleeved on the circumferential surface of the limiting rod (22), and the second compression spring (25) is located on the right side of the slider (23). The top of the placement seat (4) is threaded with a fastening bolt (26), and the fastening bolt (26) is located on the front and rear sides of the mounting groove (17). The mounting plate (18) has a threaded hole (27) inside that matches the fastening bolt (26).

2. The N-layer film bonding device for the back side of a crystalline silicon solar cell according to claim 1, characterized in that: The base (1) is fixedly connected to a first baffle (28) and a second baffle (29) on its top. The first baffle (28) is located on the right side of the slide rail (2), and the second baffle (29) is located on the left side of the slide rail (2). The base (1) is fixedly connected to a foot (30).

3. The N-layer film bonding device for the back side of a crystalline silicon solar cell according to claim 1, characterized in that: The side shapes of the sliding rail (2) and the sliding groove (5) are both T-shaped, and the sliding rail (2) is adapted to the sliding groove (5).

4. The N-layer film bonding device for the back of a crystalline silicon solar cell according to claim 1, characterized in that: The side shapes of the mounting groove (17) and the mounting plate (18) are both convex, and the mounting groove (17) is adapted to the mounting plate (18). The top of the mounting plate (18) is flush with the top of the placing seat (4).

5. The N-layer film bonding device for the back of a crystalline silicon solar cell according to claim 1, characterized in that: The upright column (8) and the cross plate (9) are arranged in a "冂" shape, and the upright column (8) is located at the middle position of the base (1).

6. The N-layer film bonding device for the back of a crystalline silicon solar cell according to claim 1, characterized in that: The extrusion groove (6) is arranged corresponding to the pressing wheel (13), and the extrusion groove (6) is adapted to the pressing wheel (13).

7. The N-layer film bonding device for the back side of a crystalline silicon solar cell according to claim 1, characterized in that: The sliding rod (10) is a square rod. The front shape of the承接块 (20) is triangular, and the top end of the承接块 (20) is flush with the top of the placing plate (19).

8. The N-layer film bonding device for the back of a crystalline silicon solar cell according to claim 1, characterized in that: The bottom of the positioning plate (24) is in contact with the mounting plate (18), and the positioning plate (24) is slidably connected to the mounting plate (18). The inner wall of the positioning plate (24) is in contact with the placing plate (19). It should be noted that there is an unclear "承接块" in the original text. You may need to check and correct it if necessary.

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