Laminated battery string repairing device

Abstract

The utility model relates to the technical field of photovoltaic module production, in particular to a film-coated battery string repairing device which comprises a workbench, a heating mechanism, a clamping mechanism, a piece carrying mechanism, a battery piece feeding station, a film conveying mechanism and a film making mechanism. The workbench is used for bearing a film-coated battery string, and the heating mechanism is used for heating a film; the clamping mechanism is used for clamping and pulling the welding strip to the repair table; the piece carrying mechanism is used for carrying materials between the battery piece feeding station and the repair table, and the film conveying mechanism is used for transferring the films manufactured by the film manufacturing mechanism to the repair table. The working table, the heating mechanism, the clamping mechanism, the sheet carrying mechanism and the film conveying mechanism are coordinated and matched to repair the film-covered battery string, and the film-covered battery string repair device is high in automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production, and in particular to a film-covered battery string repair device. Background Art

[0002] In the film-coated battery string, one or both sides of the battery cell are connected with welding tape and film, and two adjacent battery cells are connected by a set of welding tapes. After heating, the film is bonded to the battery cell to fix the welding tape to the battery cell.

[0003] Invention patent CN117012858B discloses a film-coated battery string repair device, which uses a conveying mechanism to lay new membranes and new battery cells on a workbench and remove disassembled defective battery cells, wherein the membranes and battery cells are provided by a material box. In the above technical solution, the membranes required for repairing the film-coated battery string need to be prepared in advance and stored in the material box. When the membranes in the material box are used up, the material box needs to be replaced or the membranes need to be put into the material box again. The degree of automation of the film-coated battery string repair device is low. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a film-coated battery string repair device.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A film-coated battery string rework device comprises a workbench, a heating mechanism, a clamping mechanism, a sheet moving mechanism, a battery cell loading station, a film transporting mechanism and a film making mechanism; the workbench comprises two mobile tables and a rework table arranged between the two mobile tables, and the two mobile tables can approach or move away from the rework table; the battery cell loading station, the workbench and the film making mechanism are linearly arranged along a first direction, the heating mechanism can be raised and lowered and arranged directly above the rework table, and can be moved out directly above the rework table; the clamping mechanism is used to clamp and pull the welding strip to the rework table; the sheet moving mechanism is used to transport materials between the battery cell loading station and the rework table, and the film transporting mechanism is used to transfer the film produced by the film making mechanism to the rework table.

[0007] Furthermore, a waste box is provided between the battery cell loading station and the workbench.

[0008] Furthermore, a cell straightening platform is provided between the cell loading station and the waste box.

[0009] Furthermore, the coated battery string rework device also includes a string moving mechanism, and a battery string loading station, a battery string straightening station and a cache station are provided on one side of the workbench, the battery string straightening station and the battery string loading station are linearly arranged along the first direction, and the string moving mechanism is used to carry the coated battery string between the battery string loading station, the battery string straightening station, the workbench and the cache station.

[0010] Furthermore, the string moving mechanism includes a first string moving hand and a second string moving hand, the first string moving hand is used to move the coated battery string located at the battery string loading station to the battery string straightening table, and is also used to move the coated battery string located on the workbench to the cache station; the second string moving hand is used to move the coated battery string located on the battery string straightening table to the workbench.

[0011] Furthermore, the first string moving arm includes a crossbeam and a plurality of first adsorption plates spaced apart below the crossbeam, and the first adsorption plates are elastically connected to the crossbeam.

[0012] Furthermore, a rolling wheel is provided under the cross beam, and the rolling wheel is located between any two adjacent first adsorption plates. A cylinder is fixed on the cross beam, and the driving end of the cylinder is connected to the two ends of the rolling wheel through an adapter plate to drive the rolling wheel to move up and down so that its bottom is higher or lower than the bottom surface of the first adsorption plate, and the adapter plate is rotatably connected to the two ends of the rolling wheel.

[0013] Furthermore, a PL detection mechanism is provided between the battery string straightening table and the battery string loading station.

[0014] Furthermore, along the first direction, a first cache material box and a second cache material box are provided at the cache station.

[0015] Furthermore, the film transport mechanism includes a cantilever and a second adsorption plate, the second adsorption plate is rotatably arranged below the cantilever, and the second adsorption plate is used to grab the film and place it on the rework table after horizontally rotating it 90 degrees.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The utility model provides a film-coated battery string repair device, including a workbench, a heating mechanism, a clamping mechanism, a sheet moving mechanism, a battery cell loading station, a film transporting mechanism and a film making mechanism; the workbench is used to carry the film-coated battery string, the heating mechanism is used to heat the film; the clamping mechanism is used to clamp and pull the welding strip to the repair table; the sheet moving mechanism is used to transport materials between the battery cell loading station and the repair table, and the film transporting mechanism is used to transfer the film made by the film making mechanism to the repair table. The film-coated battery string repair device has a high degree of automation by coordinating and cooperating with the workbench, the heating mechanism, the clamping mechanism, the sheet moving mechanism and the film transporting mechanism to repair the film-coated battery string. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the film-covered battery string in the utility model;

[0019] Figure 2 It is a schematic diagram of the first repair process of the film-covered battery string in the utility model;

[0020] Figure 3 It is a schematic diagram of the second repair process of the film-covered battery string in the utility model;

[0021] Figure 4 It is a schematic diagram of the third repair process of the film-covered battery string in the utility model;

[0022] Figure 5 It is a schematic diagram of the repair process 4 of the film-covered battery string in the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the film-covered battery string repair device of the utility model;

[0024] Figure 7 It is a schematic diagram of the positional relationship among the workbench, the heating mechanism and the clamping mechanism in the film-covered battery string repair device of the utility model;

[0025] Figure 8 It is a structural schematic diagram of the first string grabber in the film-covered battery string repair device of the utility model.

[0026] Among them: 10, workbench; 11, moving table; 12, rework table; 13, combing plate; 14, waste box; 20, heating mechanism; 30, clamping mechanism; 40, sheet moving mechanism; 50, battery cell loading station; 51, battery cell straightening table; 60, film transport mechanism; 70, film making mechanism; 71, long film strip; 80, string moving mechanism; 81, first string moving hand; 811, beam; 812, first adsorption plate; 8 13. Rolling wheel; 814. Cylinder; 815. Adapter plate; 82. Second string mover; 83. Battery string loading station; 84. Battery string straightening table; 85. PL detection mechanism; 90. Cache station; 91. First cache material box; 92. Second cache material box; 100. Film-coated battery string; 110. Battery cell; 120. Solder ribbon; 130. Diaphragm; 140. Battery string segment; 150. Waste unit. DETAILED DESCRIPTION

[0027] The technical solution and technical effects of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, and can also include the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper", "lower", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, 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 utility model.

[0030] The structure of the film-coated battery string 100 is as follows: Figure 1As shown, it includes a battery cell 110, a welding ribbon 120 and a membrane 130. Among them, the front and back sides of two adjacent battery cells 110 are connected by the same set of welding ribbons 120, and the membrane 130 is bonded to both sides of the battery cell 110, and the welding ribbons 120 on both sides of the battery cell 110 are between the battery cell 110 and the membrane 130. The materials of the membrane 130 on both sides of the battery cell 110 are the same or different, and are both hot-melt adhesive films.

[0031] like Figure 2-Figure 5 FIG. 1 shows a repair process of a film-coated battery string 100: first, the film 130 adhering to both sides of the battery cell 110 with quality problems is heated to reduce its adhesion, and the two battery string segments 140 on both sides of the battery cell 110 with quality problems are horizontally moved so that the two groups of welding ribbons 120 connected to both sides of the battery cell 110 with quality problems are pulled out, and each battery string segment 140 includes a group of pulled out welding ribbons 120; then, the waste unit 150 is removed, and the waste unit 150 is the battery cell 110 with quality problems and the welding ribbons 120 connected to the battery cell 110 with quality problems. The membrane 130 is adhered on both sides, and the first new membrane 130 is laid. The battery string segment 140 on the left is moved, and the first group of welding ribbons 120 are laid on the first new membrane 130, and the intact battery cell 110 is laid on the first group of welding ribbons 120; then, the battery string segment 140 on the right is moved, and the second group of welding ribbons 120 are laid on the intact battery cell 110, and the second new membrane 130 is laid on the second group of welding ribbons 120; finally, the two new membranes 130 are heated to make them adhere to the intact battery cell 110.

[0032] like Figure 6-Figure 7 As shown, for the rework process of the film-coated battery string 100, the utility model provides a film-coated battery string rework device, including a workbench 10, a heating mechanism 20, a clamping mechanism 30, a sheet moving mechanism 40, a cell loading station 50, a film transporting mechanism 60 and a film making mechanism 70; the workbench 10 includes two mobile tables 11 and a rework table 12 arranged between the two mobile tables 11, and the two mobile tables 11 can be close to or away from the rework table 12; the cell loading station 50, the workbench 10 and the film making mechanism 70 are linearly arranged along a first direction, the heating mechanism 20 can be raised and lowered and arranged directly above the rework table 12, and can be moved out directly above the rework table 12; the clamping mechanism 30 is used to clamp and pull the welding strip 120 to the rework table 12; the sheet moving mechanism 40 is used to transport materials between the cell loading station 50 and the rework table 12, and the film transporting mechanism 60 is used to transfer the film 130 produced by the film making mechanism 70 to the rework table 12.

[0033] The workbench 10 is used to carry the film-coated battery string 100, the battery cell 110 with quality problems is located on the rework station 12, and the two battery string segments 140 on both sides thereof are respectively located on two moving stations 11. The heating mechanism 20 is used to provide heat, preferably an infrared heater, and is used to heat the membrane 130 on both sides of the battery cell 110 with quality problems to reduce its adhesion when disassembling the waste unit; or to heat the new membrane 130 laid together with the intact battery cell 110 to make it adhere to fix the welding strip 120 to the intact battery cell 110. In the process of laying the first group of welding strips 120 on the first new membrane 130 or laying the second group of welding strips 120 on the intact battery cell 110, the clamping mechanism 30 is used to clamp and pull the free ends of the first group of welding strips 120 or the second group of welding strips 120 to ensure the laying accuracy of the two groups of welding strips 120. The battery cell loading station 50 caches the intact battery cells 110. The film-coated battery string repair device provided by the utility model has a high degree of automation.

[0034] Optionally, a comb plate 13 that can be raised and lowered is provided below the two moving tables 11, the comb plate 13 is close to the rework table 12, and a tooth groove is provided on the top of the comb plate 13. After a portion of the two sets of welding ribbons 120 are pulled out, the comb plate 13 moves up to a position between the moving table 11 and the rework table 12, so that the two sets of welding ribbons 120 are located in the tooth groove, and the two sets of welding ribbons 120 are guided to move in their axial direction. After the two sets of welding ribbons 120 are pulled out, they are still in the tooth groove, and their free ends extend out of the tooth groove, which is convenient for the clamping mechanism 30 to clamp.

[0035] In an optional embodiment, a waste box 14 is further provided between the battery cell loading station 50 and the workbench 10 , and the cell moving mechanism 40 is used to move the waste unit 150 into the waste box 14 .

[0036] In an optional embodiment, a cell straightening table 51 is further provided between the cell loading station 50 and the waste box 14 . The cell moving mechanism 40 is first used to move the cell 110 of the cell loading station 50 to the cell straightening table 51 for straightening, and then the straightened cell 110 is moved to the rework table to improve the laying accuracy of the cell 110 .

[0037] In an optional embodiment, the film-coated battery string repair device further includes a string moving mechanism 80, a battery string loading station 83, a battery string regularization station 84 and a buffer station 90 are provided on one side of the workbench 10, the battery string regularization station 84 and the battery string loading station 83 are arranged linearly along the first direction, and the string moving mechanism 80 is used to carry the film-coated battery string 100 between the battery string loading station 83, the battery string regularization station 84, the workbench 10 and the buffer station 90. The battery string loading station 83 is used to provide the film-coated battery string 100 to be repaired, the battery string regularization station 84 is used to regularize the film-coated battery string 100 to be repaired, and the buffer station 90 is used to store the repaired film-coated battery string 100.

[0038] Specifically, the string moving mechanism 80 includes a first string moving hand 81 and a second string moving hand 82. The first string moving hand 81 is used to move the coated battery string 100 located at the battery string loading station 83 to the battery string straightening table 84, and is also used to move the coated battery string 100 located on the workbench 10 to the cache station 90; the second string moving hand 82 is used to move the coated battery string 100 located on the battery string straightening table 84 to the workbench 10.

[0039] like Figure 8 As shown, the first string moving hand 81 includes a crossbeam 811, a plurality of first adsorption plates 812 spaced below the crossbeam 811, the first adsorption plates 812 are elastically connected to the crossbeam 811, the first adsorption plates 812 are used to adsorb the film-coated battery string 100, and a compression spring is provided between the first adsorption plate 812 and the crossbeam 811, so that the first adsorption plate 812 elastically contacts the film-coated battery string 100, and the first adsorption plate 812 acts on the membrane 130 on the surface of the film-coated battery string 100. Furthermore, a rolling wheel 813 is also provided below the crossbeam 811, and the rolling wheel 813 is located between any two adjacent first adsorption plates 812. A cylinder 814 is fixed on the crossbeam 811, and the driving end of the cylinder 814 is drivingly connected to the two ends of the rolling wheel 813 through an adapter plate 815, so as to drive the rolling wheel 813 to move up and down so that its bottom is higher or lower than the bottom surface of the first adsorption plate 812, and the adapter plate 815 is rotatably connected to the two ends of the rolling wheel 813. After the new membrane 130 is heated and adhered to the battery cell 110 , the surface of the new membrane 130 is first rolled with the rolling wheel 813 to make it adhere tightly to the battery cell 110 , and then the first adsorption plate 812 is used to adsorb the new membrane 130 so that no bubbles are generated between the new membrane 130 and the battery cell 110 .

[0040] In an optional embodiment, a PL detection mechanism is provided between the battery string straightening table 84 and the battery string loading station 83, and the PL detection mechanism is used to detect the position of the battery cells 110 with quality problems. The first string mover 81 moves the coated battery string 100 located on the battery string straightening table 84 to the battery string straightening table 84 through the PL detection mechanism, and the coated battery string 100 is inspected during its movement.

[0041] In an optional embodiment, along the first direction, a first cache material box 91 and a second cache material box 92 are provided at the cache station 90, which are used to cache the successfully repaired film-coated battery strings 100 and the failed repaired film-coated battery strings 100, respectively.

[0042] In an optional embodiment, the film transport mechanism 60 includes a cantilever and a second adsorption plate, the second adsorption plate is rotatably disposed below the cantilever, and the second adsorption plate is used to grab the film sheet 130 and place it on the rework station 12 after rotating it horizontally by 90 degrees. The film making mechanism 70 cuts the long film strip 71 into film sheets 130, the long film strip 71 is wound on a reel, and enters the film making mechanism 70 along the second direction. The width of the long film strip 71 is used as the length of the film sheet 130. After the long film strip 71 is pulled out to the length of the width of the film sheet 130, the end of the long film strip 71 is cut off to make the film sheet 130. At this time, the film sheet 130 needs to be rotated 90 degrees and placed on the rework station 12.

[0043] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A film-coated battery string repair device, characterized in that: The invention comprises a workbench (10), a heating mechanism (20), a clamping mechanism (30), a sheet moving mechanism (40), a cell sheet loading station (50), a film transporting mechanism (60) and a film making mechanism (70); the workbench (10) comprises two moving tables (11) and a rework table (12) arranged between the two moving tables (11), and the two moving tables (11) can be moved close to or away from the rework table (12); the cell sheet loading station (50), the workbench (10) and the film making mechanism (70) are arranged along a first direction. The heating mechanism (20) is arranged linearly, and can be raised and lowered to be located directly above the rework table (12) and can be moved out directly above the rework table (12); the clamping mechanism (30) is used to clamp and pull the welding ribbon (120) onto the rework table (12); the film transporting mechanism (40) is used to transport materials between the battery cell loading station (50) and the rework table (12); and the film transporting mechanism (60) is used to transport the film (130) produced by the film making mechanism (70) to the rework table (12).

2. The film-covered battery string repair device according to claim 1, characterized in that: A waste box (14) is also provided between the battery cell loading station (50) and the workbench (10).

3. The film-covered battery string repair device according to claim 2, characterized in that: A battery cell alignment platform (51) is also provided between the battery cell loading station (50) and the waste box (14).

4. The film-covered battery string repair device according to claim 1, characterized in that: The invention also includes a string moving mechanism (80), wherein a battery string loading station (83), a battery string straightening station (84) and a buffer station (90) are provided on one side of the workbench (10), the battery string straightening station (84) and the battery string loading station (83) are linearly arranged along the first direction, and the string moving mechanism (80) is used to move the coated battery string (100) between the battery string loading station (83), the battery string straightening station (84), the workbench (10) and the buffer station (90).

5. The film-covered battery string repair device according to claim 4, characterized in that: The string moving mechanism (80) comprises a first string moving hand (81) and a second string moving hand (82), wherein the first string moving hand (81) is used to move the coated battery string (100) located at the battery string loading station (83) to the battery string straightening table (84), and is also used to move the coated battery string (100) located on the workbench (10) to the buffer station (90); the second string moving hand (82) is used to move the coated battery string (100) located on the battery string straightening table (84) to the workbench (10).

6. The film-covered battery string repair device according to claim 5, characterized in that: The first string moving handle (81) comprises a crossbeam (811), and a plurality of first adsorption plates (812) arranged at intervals below the crossbeam (811), wherein the first adsorption plates (812) are elastically connected to the crossbeam (811).

7. The film-covered battery string repair device according to claim 6, characterized in that: A rolling wheel (813) is also provided below the crossbeam (811), and the rolling wheel (813) is located between any two adjacent first adsorption plates (812). A cylinder (814) is fixed on the crossbeam (811), and a driving end of the cylinder (814) is drivingly connected to two ends of the rolling wheel (813) through an adapter plate (815) so as to drive the rolling wheel (813) to move up and down so that its bottom is higher or lower than the bottom surface of the first adsorption plate (812), and the adapter plate (815) is rotatably connected to two ends of the rolling wheel (813).

8. The film-covered battery string repair device according to claim 4, characterized in that: A PL detection mechanism is provided between the battery string regularization platform (84) and the battery string loading station (83).

9. The film-covered battery string repair device according to claim 4, characterized in that: Along the first direction, a first cache material box (91) and a second cache material box (92) are provided at the cache station (90).

10. The film-covered battery string repair device according to claim 1, characterized in that: The film transport mechanism (60) comprises a cantilever and a second adsorption plate, wherein the second adsorption plate is rotatably arranged below the cantilever, and the second adsorption plate is used to grab the film (130) and place it on the rework table (12) after rotating it horizontally by 90 degrees.

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