Laminated battery string repairing device

Abstract

The utility model relates to the technical field of battery string repair, in particular to a laminated battery string repair device, which comprises a workbench, a heating mechanism, a first auxiliary mechanism and a jacking plate, the workbench comprises a left moving table, a repair table and a right moving table which are sequentially arranged, the left moving table and the right moving table can be far away from or close to the repair table, and the adjoining positions of the left moving table, the repair table and the right moving table can be staggered to form height difference; the jacking plate is used for jacking the welding strip, so that an included angle is formed between the welding strip and the battery piece, and the back membrane is easily embedded into the included angle; a clamp is arranged at the bottom of the first auxiliary mechanism and used for clamping the free end of the welding strip, and the laminated battery string is repaired through coordination and cooperation of the workbench, the heating mechanism, the first auxiliary mechanism and the jacking plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery string repair, in particular to a laminated battery string repair device. Background Art

[0002] A structure of a laminated battery string is as follows Figure 1 As shown, two adjacent battery cells are stacked front to back with a negative spacing, the front half of the welding strip is connected to the front side of the previous battery cell, and the rear half of the welding strip is connected to the rear side of the rear battery cell. Films are adhered to the front and back sides of the battery cells, namely the front film and the rear film, which are used to fix the welding strips, and the welding strips are located between the battery cells and the film, and the edge of the rear film adhered to the rear battery cell is embedded between the front half of the welding strip and the previous battery cell.

[0003] In the prior art, battery string repair equipment can repair laminated battery strings without membranes, or can repair conventional battery strings with membranes and positive cell spacing. For laminated battery strings with adhesive films adhered to both sides of the cells, the existing battery string repair equipment cannot embed the edge of the backside membrane on the rear cell between the front half of the welding strip and the front cell. Currently, the laminated battery string can only be repaired manually. Utility Model Content

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

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

[0006] A stacked battery string rework device comprises: a workbench, a heating mechanism, a first auxiliary mechanism and a lifting plate; the workbench comprises a left movable table, a rework table and a right movable table which are arranged in sequence, the heating mechanism can be lifted and lowered above the rework table, the left movable table and the right movable table can be away from or close to the rework table, and the adjacent parts of the left movable table, the rework table and the right movable table can be displaced up and down to form a height difference; the lifting plate is arranged below one end of the left movable table or the right movable table close to the rework table, the lifting plate is connected to the first lifting mechanism, the first lifting mechanism can drive the lifting plate to move up to lift up the welding strip between the left movable table or the right movable table and the rework table, so that an angle is formed between the welding strip and the battery cell; the first auxiliary mechanism can be movably arranged above the workbench, and a clamp is provided at the bottom of the first auxiliary mechanism, and the clamp is used to clamp the free end of the welding strip.

[0007] Preferably, a solder ribbon guiding assembly is provided below one end of the left movable table and the right movable table close to the rework table, and the solder ribbon guiding assembly includes a second lifting mechanism and a comb plate, and a tooth groove is provided on the top of the comb plate; the second lifting mechanism is connected to the comb plate to drive the comb plate to move up so that the tooth groove supports the solder ribbon.

[0008] Preferably, one of the second lifting mechanisms close to the lifting plate is also connected to the first lifting mechanism to drive the first lifting mechanism to move upward.

[0009] Preferably, the rework station includes a first support station and a second support station, the first support station and the second support station are respectively close to the left movable station and the right movable station, and the second support station can move up and down or rotate relative to the first support station.

[0010] Preferably, a first presser and a second presser are provided at the bottom of the heating mechanism, the first presser and the second presser are respectively close to the left movable platform and the right movable platform, and the first presser can move up and down or rotate relative to the second presser.

[0011] Preferably, an elastic pressure plate is further provided at the bottom of the first auxiliary mechanism, the bottom of the elastic pressure plate is at a height lower than the bottom of the clamp, two first auxiliary mechanisms are mirror-imaged, and the two clamps on the two first auxiliary mechanisms are located between the two elastic pressure plates.

[0012] Preferably, the left movable platform and the right movable platform both include a lifting platform and a horizontal movable platform, the lifting platform is arranged on one side of the horizontal movable platform and moves horizontally with the horizontal movable platform, the lifting platform is located between the horizontal movable platform and the rework platform, and the lifting platform can move up and down relative to the horizontal movable platform.

[0013] Preferably, adsorption holes are provided on the bearing surfaces of the lifting platform and the rework platform.

[0014] Preferably, a first welding ribbon guide groove is provided on the bearing surfaces of the lifting platform and the rework platform.

[0015] Preferably, a second soldering tape guide groove is provided at the bottom of one end of the lifting platform close to the rework platform, and an elastic ejector pin is provided directly below the second soldering tape guide groove, and the elastic ejector pin can be moved upward to cooperate with the second soldering tape guide groove to fix the soldering tape.

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

[0017] The utility model provides a stacked battery string rework device, comprising: a workbench, a heating mechanism, a first auxiliary mechanism and a lifting plate; the workbench comprises a left movable table, a rework table and a right movable table which are arranged in sequence, the left movable table and the right movable table can be moved away from or close to the rework table, and the adjacent parts of the left movable table, the rework table and the right movable table can be misaligned to form a height difference; the lifting plate is used to lift the welding strip to form an angle between the welding strip and the battery sheet, so that the back film can be easily embedded in the angle; a clamp is provided at the bottom of the first auxiliary mechanism, and the clamp is used to clamp the free end of the welding strip, and the stacked battery string rework is completed through the coordinated cooperation of the workbench, the heating mechanism, the first auxiliary mechanism and the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a structural schematic diagram of the laminated battery string repair device of the utility model;

[0020] Figure 3 It is a schematic diagram of the installation method of the jacking plate and the combing plate in the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the heating mechanism and the rework station in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the first auxiliary mechanism in the utility model;

[0023] Figure 6 It is a top view of the workbench in the utility model;

[0024] Figure 7 It is the front view of the left moving platform in the utility model;

[0025] Figure 8 It is a right side view of the left moving platform in the utility model.

[0026] Among them: 1. heating mechanism; 11. protective cover; 12. first press; 13. second press; 2. left moving platform; 21. lifting platform; 22. horizontal movable platform; 23. motor; 24. motor seat; 25. first lifting plate; 26. third lifting mechanism; 27. second lifting plate; 28. second welding belt guide groove; 29. ​​elastic ejector; 3. rework platform; 31. first supporting platform; 32. second supporting platform; 33. lifting cylinder; 4. right moving platform; 5. first auxiliary mechanism; 51. moving plate; 52. clamp; 53. elastic pressing plate; 6. lifting plate; 61. first lifting mechanism; 62. first mounting seat; 7. combing plate; 71. second lifting mechanism; 72. second mounting seat; 10. battery cell; 20. welding belt; 30. back membrane; 40. front membrane. 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] like Figure 1 As shown, in the laminated battery string, the area of ​​the battery cell 10 and the back film 30 are the same or substantially the same, and the area of ​​the front film 40 is smaller than that of the battery cell 10, that is, the front film 40 cannot cover the right edge of the upper surface of the battery cell 10. A plurality of welding strips 20 are connected to the front and back of each battery cell 10, and the welding strips 20 are in contact with the battery cell 10, and the back film 30 and the front film 40 between two adjacent welding strips 20 are adhered to the battery cell 10. The back film 30 and the front film 40 are made of hot melt adhesive film. If there are defective battery cells in the laminated battery string, they need to be repaired, the defective battery cells are removed, and the intact battery cells 10 are replaced. Defective battery cells are battery cells 10 with hidden cracks, damage or other quality problems.

[0031] like Figure 2 and Figure 3As shown, the stacked battery string rework device provided by the utility model comprises: a workbench, a heating mechanism 1, a first auxiliary mechanism 5 and a lifting plate 6; the workbench comprises a left movable table 2, a rework table 3 and a right movable table 4 which are arranged in sequence, the heating mechanism 1 can be lifted and lowered above the rework table 3, the left movable table 2 and the right movable table 4 can be away from or close to the rework table 3, and the adjacent parts of the left movable table 2, the rework table 3 and the right movable table 4 can be displaced up and down to form a height difference; the lifting plate 6 is arranged below one end of the left movable table 2 close to the rework table 3, the lifting plate 6 is connected to the first lifting mechanism 61, the first lifting mechanism 61 can drive the lifting plate 6 to move upward to lift up the welding strip 20 located between the left movable table 2 and the rework table 3, so that an angle is formed between the welding strip 20 and the battery cell 10; the first auxiliary mechanism 5 is movably arranged above the workbench, and a clamp 52 is provided at the bottom of the first auxiliary mechanism 5, and the clamp 52 is used to clamp the free end of the welding strip 20. The left movable table 2, the rework table 3 and the right movable table 4 are misaligned to form a height difference in the following ways: relative lifting or relative rotation between the left movable table 2, the rework table 3 and the right movable table 4. It should be noted that the lifting plate 6 can also be arranged below the end of the right movable table 4 close to the rework table 3, to lift up the welding strip 20 between the right movable table 4 and the rework table 3, so that an angle is formed between the welding strip 20 and the battery cell 10; or lifting plates 6 are arranged below the ends of the left movable table 2 and the right movable table 4 close to the rework table 3. If only one lifting plate 6 is arranged, the self-junction law of the laminated battery string needs to be considered, while if two lifting plates 6 are arranged, the self-junction law of the laminated battery string does not need to be considered.

[0032] Taking the lifting plate 6 being arranged on the left side as an example, the working method of the laminated battery string repair device includes the following steps:

[0033] S1, laying the laminated battery string on the workbench, placing the defective battery cell on the rework table 3, and placing the battery string segments on both sides of the defective battery cell on the left movable table 2 and the right movable table 4 respectively, and using a heating mechanism to heat the back film 30 and the front film 40 adhered to the defective battery cell to reduce the adhesion strength between the back film 30 and the front film 40 and the defective battery cell;

[0034] S2, the left movable table 2 and the right movable table 4 are away from the rework station 3, so that the battery string segments carried by the left movable table 2 and the right movable table 4 are away from the defective battery cell, the welding strip 20 connected to the defective battery cell is pulled out, the defective battery cell on the rework station 3 and the back film 30 and the front film 40 adhered thereto are removed, the clamp 52 clamps the end of the welding strip 20 pulled out from the left movable table 2, the left movable table 2 approaches the rework station 3, the clamp 52 remains stationary or approaches the rework station 3 at a distance less than the distance the left movable table 2 approaches the rework station 3, at this time, the welding strip 20 pulled out from the left movable table 2 bends by itself, the bent part of the welding strip 20 is located directly above, the lifting plate 6 moves up to lift the bent part of the welding strip 20 upward, and the right edge of the battery cell 10 below the welding strip 20 forms an angle with the welding strip 20;

[0035] S3, laying the back film 30 on the rework station 3, the left side of the back film 30 extends out of the rework station 3, after the left movable station 2, the rework station 3 and the right movable station 4 form a height difference, the left movable station 2 continues to approach the rework station 3, and the clamp 52 simultaneously clamps the end of the soldering ribbon 20 and moves to the right, so that the left side of the back film 30 is embedded in the angle formed by the soldering ribbon 20 and the battery cell 10, after the left movable station 2 moves to the target position, the clamp 52 continues to move to the right, straightens the soldering ribbon 20 and then releases it, at this time the rear half of the soldering ribbon 20 is laid on the back film 30;

[0036] S4, laying the intact battery cell 10 on the rework station 3, the left side of the battery cell 10 also extends out of the rework station 3, the clamp 52 clamps the end of the soldering ribbon 20 extracted from the right movable station 4, and moves to the left to the target position with the right movable station 4, and the clamp 52 is released so that the front half of the soldering ribbon 20 is laid on the battery cell 10;

[0037] S5, lay the front film 40 on the rework table 3, the left movable table 2, the rework table 3 and the right movable table 4 are restored to the same height, the heating mechanism 1 heats the back film 30 and the front film 40 on the rework table 3 to make them adhere to the battery cell 10, and the rework is completed.

[0038] It should be noted that laying the battery cell 10, the back film 30 and the front film 40 on the rework table 3 can be completed manually or by a robot. Therefore, through the coordination of the workbench, the heating mechanism 1, the first auxiliary mechanism 5 and the lifting plate 6, the stacked battery string rework device provided by the utility model can rework the stacked battery string.

[0039] like Figure 3As shown, in an optional embodiment, a solder strip guide assembly is provided below one end of the left movable table 2 and the right movable table 4 near the rework station 3, and the solder strip guide assembly includes a second lifting mechanism 71 and a comb plate 7, and a tooth groove is provided on the top of the comb plate 7; the second lifting mechanism 71 is connected to the comb plate 7 to drive the comb plate 7 to move up so that the tooth groove supports the solder strip 20. After a portion of the solder strip 20 connected to the defective battery cell is pulled out, the comb plate 7 moves up to the position between the left movable table 2 and the rework station 3, and the right movable table 4 and the rework station 3, so that the solder strip 20 is located in the tooth groove, and the solder strip 20 is guided to move in its axial direction. After the solder strip 20 is completely pulled out, it is still in the tooth groove, and its free end extends out of the tooth groove. The solder strip 20 is supported and limited by the comb plate 7, which is convenient for clamping by the clamp 52. Preferably, one of the second lifting mechanisms 71 near the top lifting plate 6 is also connected to the first lifting mechanism 61 to drive the first lifting mechanism 61 to move up. Specifically, the driving end of the second lifting mechanism 71 is provided with a second mounting seat 72, the first lifting comb plate 7 and the first lifting mechanism 61 are fixed on the second mounting seat 72, the driving end of the first lifting mechanism 61 is fixed with the first mounting seat 62, the first mounting seat 62 is slidably connected with the second mounting seat 72, and the lifting plate 6 is fixed on the first mounting seat 62. The lifting plate 6 and the comb plate 7 are arranged in parallel, and when the lifting plate 6 does not lift the welding strip 20, its top is lower than the bottom of the tooth groove; when the lifting plate 6 lifts the welding strip 20, its top is higher than the top of the comb plate 7. By driving the first lifting mechanism 61 upward by the second lifting mechanism 71, the driving stroke of the first lifting mechanism 61 can be reduced, thereby reducing costs.

[0040] like Figure 4As shown, in an optional embodiment, the rework station 3 includes a first support platform 31 and a second support platform 32, the first support platform 31 and the second support platform 32 are respectively close to the left movable platform 2 and the right movable platform 4, and the second support platform 32 can move up and down or rotate relative to the first support platform 31. The support area of ​​the first support platform 31 is larger than the support area of ​​the second support platform 32. After the back film 30 is laid on the rework station 3, the second support platform 32 moves downward or rotates, and the back film 30 forms a planar portion and a non-planar portion. When the clamp 52 clamps the solder ribbon 20 and lays the solder ribbon 20 on the back film 30, the clamp 52 can move to the area corresponding to the non-planar portion, so that the solder ribbon 20 is laid flat on the planar portion, and then the clamp 52 releases the solder ribbon 20, which can ensure that the solder ribbon 20 is laid in the correct position. Preferably, the second support platform 32 rotates relative to the first support platform 31. After the battery cell 10 is laid on the rework platform 3, the second support platform 32 rotates to a horizontal position, and the non-planar back film 30 will naturally return to a horizontal position and contact the welding strip 20 without wrinkles. Specifically, the first support platform 31 and the second support platform 32 are hinged, and a cylinder seat is fixed at the bottom of the first support platform 31, and a lifting cylinder 33 is hinged on the cylinder seat, and the driving end of the lifting cylinder 33 is hinged to the bottom of the second support platform 32. By controlling the lifting cylinder 33, the second support platform 32 is controlled to rotate relative to the first support platform 31. After the battery cell 10 is laid on the rework table 3, the second support table 32 moves downward or rotates, and the back film 30 forms a planar portion and a non-planar portion. When the clamp 52 clamps the solder ribbon 20 and lays the solder ribbon 20 on the back film 30, the clamp 52 can move to the area corresponding to the non-planar portion, so that the solder ribbon 20 is laid flatly on the planar portion, and then the clamp 52 releases the solder ribbon 20 to ensure that the solder ribbon 20 is laid in the correct position.

[0041] In an optional embodiment, a first press 12 and a second press 13 are provided at the bottom of the heating mechanism 1. The first press 12 and the second press 13 are respectively close to the left movable table 2 and the right movable table 4. The first press 12 can move up and down or rotate relative to the second press 13. The pressing area of ​​the first press 12 is smaller than the pressing area of ​​the second press 13. After the clamp 52 clamps the welding ribbon 20 and moves to above the battery cell 10, the clamp 52 extends horizontally to clamp the welding ribbon 20. The welding ribbon 20 is in a relaxed state. When the front film 40 is laid on the welding ribbon 20, the left edge of the front film 40 will cover the end of the clamp 52. The first press 12 moves upward or rotates relative to the second press 13 to avoid the clamp 52, so that the pressing surface of the second press 13 is lower than the pressing surface of the first press 12. The clamp 52 clamps The end of the soldering ribbon 20 is held directly below the first press 12, the heating mechanism 1 moves downward, the second press 13 first contacts the soldering ribbon 20 and presses the front film 40, the front film 40 and the soldering ribbon 20 corresponding to the second press 13 are pressed on the battery cell 10, the clamp 52 continues to move to the left, the soldering ribbon 20 is tightened and detached from the clamp 52, the front film 40 covers the previously clamped part of the soldering ribbon 20, and the first press 12 presses the front film 40. By using the first press 12 to move relative to the second press 13 in an offset manner, the clamp 52 can be avoided, the front film 40 can be pressed in batches, and the second press 13 presses the soldering ribbon 20 and then the clamp 52 releases the soldering ribbon 20, which can ensure that the soldering ribbon 20 is laid in the correct position.

[0042] In this embodiment, the heating mechanism 1 further includes a protective cover 11, an infrared lamp is arranged inside the protective cover, and light-transmitting holes are arranged on the first press 12 and the second press 13. Infrared rays reach the battery cell 10 through the light-transmitting holes, and heat the battery cell 10 and then heat the back film 30 and the front film 40. A cylinder is arranged inside the protective cover, and the first press 12 is controlled by the cylinder to move up and down or rotate relative to the second press 13.

[0043] like Figure 5 As shown, in an optional embodiment, an elastic pressure plate 53 is further provided at the bottom of the first auxiliary mechanism 5, and the height of the bottom of the elastic pressure plate 53 is lower than the height of the bottom of the clamp 52. Two first auxiliary mechanisms 5 are mirror-imaged, and the two clamps 52 on the two first auxiliary mechanisms 5 are located between the two elastic pressure plates 53. The first auxiliary mechanism 5 also includes a moving plate 51, and the clamp 52 and the elastic pressure plate 53 are installed at the bottom of the moving plate 51. When the left moving platform 2 and the right moving platform 4 are moved, the elastic pressure plate 53 can press the battery string segments carried by the left moving platform 2 and the right moving platform 4 to prevent the battery string segments from moving out of position. It should be noted that the elastic pressure plate 53 on the left side presses the battery string segments on the left side, and the elastic pressure plate 53 on the right side presses the battery string segments on the right side; the clamp 52 on the left side clamps the welding strip 20 on the right side, and the clamp 52 on the right side clamps the welding strip 20 on the left side.

[0044] like Figure 6 and Figure 7 As shown, in an optional embodiment, the left movable platform 2 and the right movable platform 4 both include a lifting platform 21 and a horizontal movable platform 22. The lifting platform 21 is arranged on one side of the horizontal movable platform 22 and moves horizontally with the horizontal movable platform 22. The lifting platform 21 is located between the horizontal movable platform 22 and the rework platform 3. The lifting platform 21 can move up and down relative to the horizontal movable platform 22. That is, by lifting the lifting platform 21 relative to the rework platform 3, the adjacent parts of the left movable platform 2, the rework platform 3 and the right movable platform 4 can be misaligned to form a height difference. Specifically, a motor seat 24 is fixed below the horizontal movable platform 22, and a motor 23 is fixed on the motor seat 24. The motor 23 is connected to a first lifting plate 25 on one side of the motor seat 24 through a cam, and the lifting platform 21 is fixed on the top of the first lifting plate 25. When the motor 23 is actuated, the lifting platform 21 can be lifted and lowered.

[0045] Furthermore, the carrying surfaces of the lifting platform 21 and the rework platform 3 are provided with adsorption holes for adsorbing and fixing the objects carried by the left movable platform 2, the rework platform 3 and the right movable platform 4. The carrying surfaces of the lifting platform 21 and the rework platform 3 are provided with first soldering tape guide grooves for accommodating the soldering tape 20 under the battery cell 10, so that the battery cell 10 is closely attached to the carrying surface, thereby increasing the force-bearing area of ​​the battery cell 10.

[0046] When the defective battery cell is located at the end of the laminated battery string, the left movable platform 2 or the right movable platform 4 cannot support or control the welding strip 20 at the end of the laminated battery string. Figure 8 As shown, in order to clamp the solder strip 20 at the end of the battery string, a second solder strip guide groove 28 is provided at the bottom of the lifting platform 21 near the rework platform 3, and an elastic ejector pin 29 is provided directly below the second solder strip guide groove 28. The elastic ejector pin 29 can move upward to cooperate with the second solder strip guide groove 28 to fix the solder strip 20. Specifically, a third lifting mechanism 26 is fixed to the side wall of the first lifting plate 25, and the driving end of the third lifting mechanism 26 is connected to the second lifting plate 27, and the elastic ejector pin 29 is arranged on the second lifting plate.

[0047] 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 laminated battery string repair device, characterized in that: include: A workbench, a heating mechanism (1), a first auxiliary mechanism (5) and a lifting plate (6); the workbench comprises a left movable table (2), a rework table (3) and a right movable table (4) which are arranged in sequence; the heating mechanism (1) can be raised and lowered above the rework table (3); the left movable table (2) and the right movable table (4) can be moved away from or close to the rework table (3); the adjacent parts of the left movable table (2), the rework table (3) and the right movable table (4) can be staggered up and down to form height difference; the lifting plate (6) is arranged below one end of the left movable platform (2) or the right movable platform (4) close to the rework platform (3); the lifting plate (6) is connected to a first lifting mechanism (61); the first lifting mechanism (61) can drive the lifting plate (6) to move upward to lift the welding strip (20) between the left movable platform (2) or the right movable platform (4) and the rework platform (3), so that an angle is formed between the welding strip (20) and the battery cell (10); The first auxiliary mechanism (5) is movably arranged above the workbench, and a clamp (52) is provided on the first auxiliary mechanism (5), and the clamp (52) is used to clamp the free end of the welding strip (20).

2. The laminated battery string repair device according to claim 1, characterized in that: A solder strip guide assembly is provided below one end of the left movable platform (2) and the right movable platform (4) close to the rework platform (3), and the solder strip guide assembly comprises a second lifting mechanism (71) and a comb plate (7), and a tooth groove is provided on the top of the comb plate (7); the second lifting mechanism (71) is connected to the comb plate (7) to drive the comb plate (7) to move upward so that the tooth groove supports the solder strip (20).

3. The laminated battery string repair device according to claim 2, characterized in that: One of the second lifting mechanisms (71) close to the lifting plate (6) is also connected to the first lifting mechanism (61) to drive the first lifting mechanism (61) to move upward.

4. The laminated battery string repair device according to claim 1, characterized in that: The rework platform (3) comprises a first support platform (31) and a second support platform (32); the first support platform (31) and the second support platform (32) are respectively close to the left movable platform (2) and the right movable platform (4); and the second support platform (32) can move up and down or rotate relative to the first support platform (31).

5. The laminated battery string repair device according to claim 1, characterized in that: A first press (12) and a second press (13) are provided at the bottom of the heating mechanism (1); the first press (12) and the second press (13) are respectively close to the left movable platform (2) and the right movable platform (4); and the first press (12) can move up and down or rotate relative to the second press (13).

6. The laminated battery string repair device according to claim 1, characterized in that: An elastic pressure plate (53) is also provided at the bottom of the first auxiliary mechanism (5), and the height of the bottom of the elastic pressure plate (53) is lower than the height of the bottom of the clamp (52). Two first auxiliary mechanisms (5) are arranged in mirror image, and the two clamps (52) on the two first auxiliary mechanisms (5) are located between the two elastic pressure plates (53).

7. The laminated battery string repair device according to claim 1, characterized in that: The left movable platform (2) and the right movable platform (4) both comprise a lifting platform (21) and a horizontal movable platform (22); the lifting platform (21) is arranged on one side of the horizontal movable platform (22) and moves horizontally with the horizontal movable platform (22); the lifting platform (21) is located between the horizontal movable platform (22) and the rework platform (3); and the lifting platform (21) can move up and down relative to the horizontal movable platform (22).

8. The laminated battery string repair device according to claim 7, characterized in that: Adsorption holes are provided on the bearing surfaces of the lifting platform (21) and the rework platform (3).

9. The laminated battery string repair device according to claim 7, characterized in that: A first welding strip guide groove is provided on the bearing surfaces of the lifting platform (21) and the rework platform (3).

10. According to the stacked battery string rework device of claim 7, it is characterized in that: a second solder strip guide groove (28) is provided at the bottom of one end of the lifting platform (21) close to the rework platform (3), and an elastic ejector pin (29) is provided directly below the second solder strip guide groove (28), and the elastic ejector pin (29) can be moved upward to cooperate with the second solder strip guide groove (28) to fix the solder strip (20).

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