Solar cell exposure streamline

Abstract

The utility model relates to a solar cell exposure streamline, and relates to the technical field of solar cell production, the solar cell exposure streamline comprises two exposure units, the two exposure units are connected end to end, and each exposure unit comprises two feeding and discharging streamlines; each feeding and discharging streamline comprises a feeding machine, a feeding and discharging gantry module and a discharging machine which are sequentially connected, and an exposure machine is arranged between the two feeding and discharging streamlines. The solar cell exposure flow line has the advantages that the two feeding and discharging flow lines and the two exposure units are arranged, so that the solar cell conveying efficiency of the solar cell exposure flow line is improved, the exposure machine exposes the two feeding and discharging flow lines in turn, and the exposure efficiency of large-scale production can be improved.

Description

Technical Field

[0001] The present application relates to the field of solar cell production technology, and in particular to a solar cell exposure line. Background Art

[0002] Screen printing electrode preparation is one of the indispensable processes in the solar cell manufacturing process. Its electrode cost accounts for 30% of the non-silicon cost of PERC cells and 50% of the non-silicon cost of HJT cells. The electrode cost remains high and cost reduction is urgent. Many battery manufacturers are researching and even planning electroplating copper technology to replace the mainstream screen printing electrode technology. The graphic scheme of electroplating copper technology is mainly based on exposure. The current graphic technology scheme has the problem of low exposure efficiency in mass production and does not meet the requirements of large-scale production of solar cells. Utility Model Content

[0003] In order to improve the problem of low exposure efficiency during mass production of graphic technology solutions, the present application provides a solar cell exposure line.

[0004] The solar cell exposure line provided in this application adopts the following technical solution:

[0005] A solar cell exposure line comprises: two groups of exposure units, the two exposure units are connected end to end, each group of exposure units comprises two loading and unloading lines, each loading and unloading line comprises a loading machine, a loading and unloading gantry module and a unloading machine connected in sequence, and an exposure machine is arranged between the two loading and unloading lines.

[0006] In one embodiment, the loading machine includes multiple loading transmission lines, multiple placement boxes and a first buffer area. The loading transmission lines are used to transmit solar cells. The placement boxes are arranged at the tail end of the loading transmission lines. The solar cells are transmitted to the placement boxes through the loading transmission lines. The first buffer area is arranged on a side of the placement box away from the loading transmission line. A first pendulum assembly for transporting the solar cells in the placement box to the first buffer area is provided between the placement box and the first buffer area.

[0007] In one embodiment, the first pendulum assembly includes a bracket, a guide rail and a plurality of first vacuum suction cups, the guide rail is slidably connected along the length direction of the bracket, a mounting frame is slidably connected to the guide rail along the length direction of the guide rail, a plurality of vacuum valves are provided on the mounting frame, the plurality of vacuum valves correspond to the plurality of first vacuum suction cups respectively, the first vacuum suction cup is fixed to the mounting frame, and the first vacuum suction cup is connected to the vacuum valve.

[0008] In one embodiment, the loading and unloading gantry module includes a moving frame, an electric cylinder and a second suction cup. The electric cylinder is slidably connected along the length direction of the moving frame, and the second suction cup is fixed to the telescopic shaft of the electric cylinder.

[0009] In one embodiment, the unloading machine includes a second buffer area, a second swing plate assembly, a plurality of flipping mechanisms and a plurality of unloading transmission lines which are arranged in sequence. The second swing plate assembly has the same structure as the first swing plate assembly, and the plurality of flipping mechanisms correspond one by one to the plurality of unloading transmission lines. The second swing plate assembly is used to place the solar cell on the flipping mechanism, and the flipping mechanism is used to flip the solar cell.

[0010] In one embodiment, the flipping mechanism includes a flipping machine and a lifting servo motor, the flipping machine is fixed to the driving shaft of the lifting servo motor, the flipping machine is rotatably connected to a flipping plate, the flipping plate is arranged above the unloading transmission line, and the flipping plate is provided with a suction port.

[0011] The solar cell exposure flow line provided by the embodiments of the present disclosure can achieve the following technical effects:

[0012] By setting up two loading and unloading lines and two exposure units, the efficiency of the solar cell exposure line in conveying solar cells is improved, and the exposure machine exposes the two loading and unloading lines in turn, which helps to improve the exposure efficiency of large-scale production.

[0013] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a solar cell exposure flow line provided in an embodiment of the present application.

[0015] Figure 2 It is a schematic diagram of the overall structure of the relationship between the loading and unloading flow lines and the exposure unit provided in the embodiment of the present application.

[0016] Figure 3 It is a schematic diagram of the overall structure of a group of exposure units provided in an embodiment of the present application.

[0017] Figure 4 It is a schematic diagram of the overall structure of the first pendulum assembly provided in an embodiment of the present application.

[0018] Figure 5 It is a schematic diagram of the overall structure of the loading and unloading gantry module provided in the embodiment of the present application.

[0019] Figure 6 It is a structural schematic diagram of the positional relationship between a flipping mechanism and a material unloading transmission line provided in an embodiment of the present application.

[0020] Explanation of the reference numerals: 1. Exposure unit; 2. Loading and unloading flow line; 3. Loader; 31. Loading transmission line; 32. Placement box; 33. First buffer area; 4. Loading and unloading gantry module; 41. Moving frame; 42. Electric cylinder; 43. Second suction cup; 5. Unloader; 51. Second buffer area; 52. Second swing plate assembly; 53. Flipping mechanism; 531. Flipping machine; 532. Lifting servo motor; 54. Unloader transmission line; 6. First swing plate assembly; 61. Bracket; 62. Guide rail; 63. Vacuum suction cup; 7. Mounting frame; 8. Vacuum valve; 9. Flip plate; 10. Adsorption port; 11. Exposure machine. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0023] The following is combined with Figure 1-6 This application is described in further detail.

[0024] A solar cell exposure line comprises: two exposure units 1, the two exposure units 1 are connected end to end, each exposure unit 1 comprises two loading and unloading lines 2, each loading and unloading line 2 comprises a loading machine 3, a loading and unloading gantry module 4 and a unloading machine 5 connected in sequence, and an exposure machine 11 is arranged between the two loading and unloading lines 2.

[0025] When performing the exposure operation, the two groups of exposure machines 11 perform P-side exposure and N-side exposure respectively. During the exposure process, the two loading and unloading lines 2 of each group of exposure machines 11 load materials on the loading machine 3 at the same time, and the solar cells on the loading machine 3 are transported to the exposure machine 11 through the loading and unloading gantry module 4. The exposure machine 11 exposes the solar cells transported by the two loading and unloading lines 2 in turn. After the exposure is completed, the loading and unloading gantry module 4 transports the solar cells to the unloading machine 5. The unloading machine 5 reverses the solar cells and transports them to the loading machine 3 of the next group of exposure machine groups 1 and repeats the above steps, thereby performing double-sided exposure on the solar cells.

[0026] By setting up two loading and unloading lines 2 and two exposure units 1, the efficiency of the solar cell exposure line in conveying solar cells is improved, and the exposure machine 11 exposes the two loading and unloading lines 2 in turn, which helps to improve the exposure efficiency of large-scale production.

[0027] In one embodiment, the loading machine 3 includes multiple loading transmission lines 31, multiple placement boxes 32 and a first buffer area 33. The loading transmission line 31 is used to transmit solar cells. The placement box 32 is arranged at the tail end of the loading transmission line 31. The solar cells are transmitted to the placement box 32 through the loading transmission line 31. The first buffer area 33 is arranged on the side of the placement box 32 away from the loading transmission line 31. A first pendulum assembly 6 for transporting the solar cells in the placement box 32 to the first buffer area 33 is provided between the placement box 32 and the first buffer area 33.

[0028] The solar cells are placed on the loading transmission line 31 for transmission through the automated structure, and the loading transmission line 31 transfers the solar cells to the placement box 32, and then the first swing plate assembly 6 is used to collect and transport the solar cells in each placement box 32 to the first buffer area 33 to wait for the loading and unloading gantry module 4 to transport them to the exposure machine 11 for exposure. In this way, the disordered solar cells can be collected in an orderly manner and transported to the exposure machine 11 for exposure in sequence, thereby reducing the defective rate.

[0029] In one embodiment, a CCD detector and a mechanical positioning device may be further disposed above the loading transmission line 31 .

[0030] In one embodiment, the first pendulum assembly 6 includes a bracket 61, a guide rail 62 and a plurality of first vacuum suction cups 63. The guide rail 62 is slidably connected along the length direction of the bracket 61. A mounting frame 7 is slidably connected to the guide rail 62 along the length direction of the guide rail 62. A plurality of vacuum valves 8 are provided on the mounting frame 7. The plurality of vacuum valves 8 correspond one by one to the plurality of first vacuum suction cups 63 respectively. The first vacuum suction cup 63 is fixed to the mounting frame 7, and the first vacuum suction cup 63 is connected to the vacuum valve 8.

[0031] The bracket 61 and the guide rail 62 are provided with a driving device to drive the guide rail 62 to move along the length direction of the bracket 61 and to drive the mounting frame 7 to move along the length direction of the guide rail 62. In actual operation, when moving to the first buffer area 33, the vacuum valve 8 controls the vacuum suction cup 63 to absorb the solar cell in the first buffer area 33, and then the driving device drives the vacuum suction cup 63 to move to the exposure assembly. At this time, the vacuum valve 8 controls the vacuum suction cup 63 to release the solar cell to the exposure machine 11, which is easy to operate and improves the exposure efficiency.

[0032] In one embodiment, the loading and unloading gantry module 4 includes a moving frame 41 , an electric cylinder 42 and a second suction cup 43 . The electric cylinder 42 is slidably connected along the length direction of the moving frame 41 , and the second suction cup 43 is fixed to the telescopic shaft of the electric cylinder 42 .

[0033] There are two groups of loading gantry modules, which are used to transport the solar cells in the first buffer area 33 to the exposure machine 11 and to transport the solar cells exposed by the exposure machine 11 to the unloading machine 5 .

[0034] During operation, the electric cylinder 42 controls the second suction cup 43 to approach the exposure machine 11 and absorb the solar cell. Then the electric cylinder 42 controls the second washing plate to move away from the exposure machine 11 and move along the moving frame 41 to the unloader 5 and release the solar cell.

[0035] In one embodiment, the unloading machine 5 includes a second buffer area 51, a second swing plate assembly 52, a plurality of flipping mechanisms 53 and a plurality of unloading transmission lines 54 which are arranged in sequence. The second swing plate assembly 52 has the same structure as the first swing plate assembly 6, and the plurality of flipping mechanisms 53 correspond one by one to the plurality of unloading transmission lines 54. The second swing plate assembly 52 is used to place the solar cell on the flipping mechanism 53, and the flipping mechanism 53 is used to flip the solar cell.

[0036] In this embodiment, the second buffer area 51, the second swing plate assembly 52 and the unloading transmission line 54 are respectively the same in structure as the aforementioned first buffer area 33, the first swing plate assembly 6 and the loading transmission line 31.

[0037] In one embodiment, the flipping mechanism 53 includes a flipping machine 531 and a lifting servo motor 532. The flipping machine 531 is fixed to the driving shaft of the lifting servo motor 532. The flipping machine 531 is rotatably connected to a flipping plate 9. The flipping plate 9 is arranged above the unloading transmission line 54. The flipping plate 9 is provided with a suction port 10.

[0038] During the working process, the loading and unloading gantry module 4 places the solar cell in the second buffer zone, and then the second swing plate assembly 52 adsorbs and transports the solar cell in the second buffer zone to the flip plate 9 and is adsorbed and fixed by the adsorption port 10 on the reversal plate, and then the driving assembly on the flip machine 531 flips the flip plate 9, and then the lifting servo motor 532 drives the flip plate 9 to descend to the vicinity of the unloading transmission line 54. At this time, the adsorption port 10 no longer adsorbs the solar cell, and the solar cell is transmitted from the unloading transmission line 54 to the loading transmission line 31 of another group of exposure units 1.

[0039] Since the solar cell needs to be exposed on both sides, after one exposure unit 1 exposes one side, the solar cell is flipped by using the flipping mechanism 53, and then transported to another exposure unit 1 to expose the other side of the solar cell, thereby avoiding manual flipping and improving the exposure efficiency of large-scale production.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A solar cell exposure line, characterized in that: include: Two groups of exposure units are connected end to end, each group of exposure units includes two loading and unloading flow lines, each of the loading and unloading flow lines includes a loading machine, a loading and unloading gantry module and a unloading machine connected in sequence, and an exposure machine is arranged between the two loading and unloading flow lines.

2. The solar cell exposure line according to claim 1, characterized in that: The loading machine includes multiple loading transmission lines, multiple placement boxes and a first buffer area. The loading transmission line is used to transmit solar cells. The placement box is arranged at the tail end of the loading transmission line. The solar cells are transmitted to the placement box through the loading transmission line. The first buffer area is arranged on a side of the placement box away from the loading transmission line. A first swing plate assembly for transporting the solar cells in the placement box to the first buffer area is provided between the placement box and the first buffer area.

3. The solar cell exposure line according to claim 2, characterized in that: The first pendulum assembly includes a bracket, a guide rail and a plurality of first vacuum suction cups. The guide rail is slidably connected along the length direction of the bracket. A mounting frame is slidably connected to the guide rail along the length direction of the guide rail. A plurality of vacuum valves are provided on the mounting frame. The plurality of vacuum valves correspond to the plurality of first vacuum suction cups respectively. The first vacuum suction cup is fixed to the mounting frame, and the first vacuum suction cup is connected to the vacuum valve.

4. The solar cell exposure line according to claim 1, characterized in that: The loading and unloading gantry module includes a moving frame, an electric cylinder and a second suction cup. The electric cylinder is slidably connected along the length direction of the moving frame, and the second suction cup is fixed to the telescopic shaft of the electric cylinder.

5. The solar cell exposure line according to claim 2, characterized in that: The unloading machine includes a second buffer area, a second swing plate assembly, multiple flipping mechanisms and multiple unloading transmission lines arranged in sequence. The second swing plate assembly has the same structure as the first swing plate assembly. The multiple flipping mechanisms correspond one by one to the multiple unloading transmission lines. The second swing plate assembly is used to place the solar cell on the flipping mechanism, and the flipping mechanism is used to flip the solar cell.

6. The solar cell exposure line according to claim 5, characterized in that: The flipping mechanism includes a flipping machine and a lifting servo motor. The flipping machine is fixed to the driving shaft of the lifting servo motor. The flipping machine is rotatably connected to a flipping plate. The flipping plate is arranged above the unloading transmission line. The flipping plate is provided with a suction port.

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