Battery string repairing device

Abstract

The utility model provides a battery string repairing device which comprises a repairing platform, a pressing mechanism, a clamping mechanism, a removing mechanism, an adhesive film carrying mechanism, a welding strip carrying mechanism and a battery piece carrying mechanism. The repairing platform bears a to-be-repaired battery string and is matched with the pressing mechanism and the clamping mechanism to disassemble defective units from the battery string; the defect unit is a defect battery piece provided with a first welding strip, a second welding strip, a first back face adhesive film, a first front face adhesive film, a second back face adhesive film and a second front face adhesive film. The removal mechanism is configured to remove defective cells from the rework platform. The adhesive film carrying mechanism, the welding strip carrying mechanism and the battery piece carrying mechanism are matched with the repair platform to bond a first replacement back adhesive film, a second replacement welding strip, a replacement battery piece, a second replacement front adhesive film, a second replacement back adhesive film, a first replacement welding strip and a first replacement front adhesive film into the battery string according to a stacking rule; therefore, automatic repair of the film-coated battery string is completed.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic module production, and specifically to a battery string repair device. Background Art

[0002] In the film-coated battery string, the welding strips connecting adjacent battery cells are bonded to the battery cells under the application of the adhesive film.

[0003] For coated battery strings, when there are defective battery cells (referred to as defective battery cells) in the battery string, the battery string can be replaced and repaired according to the actual situation, that is, the defective battery cells are removed from the battery string and replaced with qualified battery cells (referred to as replacement battery cells).

[0004] The commonly used battery string repair machine is mainly used for replacing and repairing conventional battery strings without adhesive film and welded by welding ribbon. This kind of repair machine cannot be used to repair the film-coated battery string. Utility Model Content

[0005] In view of the above technical problems, the present application provides a battery string repair device, and its detailed technical solution is as follows:

[0006] A battery string repair device includes a repair platform, a pressing mechanism, a clamping mechanism, a removal mechanism, a film conveying mechanism, a solder strip conveying mechanism and a battery cell conveying mechanism, wherein:

[0007] The repair platform is configured to carry the battery string to be repaired, and is configured to cooperate with the pressing mechanism and the clamping mechanism to disassemble the defective unit from the battery string, wherein the defective unit is a defective battery cell with a first welding strip, a second welding strip, a first back adhesive film, a first front adhesive film, a second back adhesive film and a second front adhesive film, wherein before disassembly, the defective battery cell is connected to the battery cell adjacent to the first side through the first welding strip, the upper half of the first welding strip is bonded to the front side of the defective battery cell through the first front adhesive film, the lower half of the first welding strip is bonded to the back side of the battery cell adjacent to the first side through the second back adhesive film, the defective battery cell is connected to the battery cell adjacent to the second side through the second welding strip, the lower half of the second welding strip is bonded to the back side of the defective battery cell through the first back adhesive film, and the upper half of the second welding strip is bonded to the front side of the battery cell adjacent to the second side through the second front adhesive film;

[0008] The removal mechanism is configured to remove the defective unit from the rework platform;

[0009] The film conveying mechanism, the solder strip conveying mechanism and the battery cell conveying mechanism are configured to place the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film according to stacking rules to the position vacated after the defective unit is removed, and are configured to cooperate with the rework platform and the pressing mechanism to adhere the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film into the battery string.

[0010] The battery string rework device provided in the present application first disassembles and removes the defective battery cells with the first solder strip, the second solder strip, the first back film, the first front film, the second back film and the second front film from the battery string through the cooperation of the rework platform, the pressing mechanism and the clamping mechanism; then, the film conveying mechanism, the solder strip conveying mechanism, the battery cell conveying mechanism, the rework platform and the pressing mechanism cooperate with each other to lay the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film into the battery string according to the stacking rules, thereby completing the automatic rework of the film-coated battery string.

[0011] In some embodiments, the rework platform includes a first loading platform, a second loading platform, a third loading platform, a fourth loading platform, a fifth loading platform and a sixth loading platform which are sequentially arranged on a first side of the first loading platform and can be lifted and lowered relative to the first loading platform, and a seventh loading platform which is arranged on a second side of the first loading platform and can be lifted and lowered relative to the first loading platform; the pressing mechanism includes a first pressing component, a second pressing component and a third pressing component which can be independently lifted and lowered, the first pressing component being arranged above the first loading platform and the second loading platform, the second pressing component being arranged above the third loading platform, the fourth loading platform and the fifth loading platform, and the third pressing component being arranged above the seventh loading platform, wherein an end of the seventh loading platform close to the first loading platform is located at a position where the third pressing component is horizontally The outer side of the projection on the surface; the clamping mechanism includes a first clamping component and a second clamping component; the first carrier and the second carrier are configured to carry and absorb the defective battery cell, the third carrier, the fourth carrier and the fifth carrier are configured to carry and absorb the battery cell adjacent to the first side, the sixth carrier is configured to carry and absorb all the battery cells on the first side of the battery cell adjacent to the first side in the battery string, and the seventh carrier is configured to carry and absorb all the battery cells on the second side of the defective battery cell in the battery string; the first pressing component and the second pressing component are configured to descend synchronously to press the defective battery cell and the battery cell adjacent to the first side downward respectively, and the second pressing component is also configured to heat the second back side adhesive film to soften the second back side adhesive film; the second pressing component also The first holding member is configured to rise synchronously with the fourth bearing platform, the fifth bearing platform and the sixth bearing platform, so that the second back side adhesive film and the lower half of the first welding strip on the third bearing platform are separated from the back side of the first side adjacent battery cell, and a first clamping gap is formed between the second back side adhesive film and the lower half of the first welding strip and the first side adjacent battery cell; the first clamping assembly is configured to clamp the first side adjacent battery cell from the upper and lower sides through the first clamping gap, and the first clamping assembly is further configured to continue to rise synchronously with the sixth bearing platform, and the fourth bearing platform and the fifth bearing platform are configured to drive the second back side adhesive film and the lower half of the first welding strip to descend and return to their positions, so that the second back side adhesive film and the lower half of the first welding strip are completely separated from the first side adjacent battery cell; the third pressing assembly is configured to press the second side adjacent battery cell downward. The battery cell is connected, and the second front side film is heated to soften the second front side film. The third pressing assembly is also configured to descend synchronously with the seventh supporting platform, so that the second front side film and the upper half of the second welding strip located outside the projection of the third pressing assembly on the horizontal plane are separated from the front side of the battery cell adjacent to the second side, and a second clamping gap is formed between the second front side film and the upper half of the second welding strip and the battery cell adjacent to the second side; the second clamping assembly is configured to clamp the battery cell adjacent to the second side from the upper and lower sides through the second clamping gap, and the third pressing assembly is also configured to rise to separate from the second front side film. The second clamping assembly is also configured to continue to descend synchronously with the seventh supporting platform, so that the second front side film and the upper half of the second welding strip are completely separated from the battery cell adjacent to the second side.

[0012] By setting up the rework platform, the pressing mechanism and the clamping mechanism, the rework platform, the pressing mechanism and the clamping mechanism can cooperate with each other to disassemble the defective battery cell with the first welding strip, the second welding strip, the first back film, the first front film, the second back film and the second front film from the battery string as a whole, thereby improving the disassembly efficiency.

[0013] In some embodiments, the first clamping component is rotatably connected to the second pressing component, and the upper and lower ends of the first clamping component are clamping ends; when the first clamping component rotates downward, the clamping end of the first clamping component located at the bottom is inserted into the first clamping gap to clamp the first side adjacent battery cell from the upper and lower sides; after the second back side adhesive film and the lower half of the first welding strip are completely separated from the first side adjacent battery cell, the first clamping component is configured to rotate upward to release the first side adjacent battery cell, and the second pressing component is also configured to adsorb the first side adjacent battery cell when the first clamping component releases the first side adjacent battery cell so that the first side adjacent battery cell remains in a high position.

[0014] The first clamping component is rotatably connected to the second pressing component. When the first clamping component is rotated downward, it can be inserted into the first clamping gap to clamp the adjacent battery cell on the first side from the upper and lower sides. In this way, when the first clamping component and the sixth supporting platform rise synchronously, the second back side adhesive film and the lower half of the first welding strip can be smoothly separated from the adjacent battery cell on the first side.

[0015] In some embodiments, the second clamping assembly is rotatably connected to the seventh supporting platform, and the upper and lower ends of the second clamping assembly are clamping ends; when the second clamping assembly rotates upward, the clamping end of the second clamping assembly located at the top is inserted into the second clamping gap to clamp the second side adjacent battery cells from the upper and lower sides; after the second back side adhesive film and the upper half of the second welding strip are completely detached from the second side adjacent battery cells, the second clamping assembly is configured to rotate downward to release the second side adjacent battery cells; the seventh supporting platform is configured to drive all battery cells located on the second side of the defective battery cell to rise and reset after the second clamping assembly releases the second side adjacent battery cell.

[0016] The second clamping assembly is rotatably connected to the seventh carrier platform, and when the second clamping assembly rotates upward, it can be inserted into the second clamping gap, thereby clamping the second side adjacent battery cell from the upper and lower sides. In this way, when the second clamping assembly and the seventh carrier platform continue to descend synchronously, the second front adhesive film and the upper half of the second welding strip can be smoothly separated from the second side adjacent battery cell.

[0017] In some embodiments, when the second pressing assembly heats the second back-side adhesive film to soften the second back-side adhesive film, the fourth carrying platform and the fifth carrying platform are configured to heat the second back-side adhesive film synchronously.

[0018] The fourth carrier platform and the fifth carrier platform cooperate with the second pressing component to synchronously heat the second back side adhesive film, thereby accelerating the softening of the second back side adhesive film and improving the disassembly efficiency.

[0019] In some embodiments, when the third pressing assembly heats the second front adhesive film to soften the second front adhesive film, the seventh carrying platform is configured to heat the second front adhesive film simultaneously.

[0020] The seventh supporting platform cooperates with the third pressing assembly to heat the second front adhesive film, so that the second front adhesive film is softened faster, thereby improving the disassembly efficiency.

[0021] In some embodiments, the pressing mechanism further includes a fourth pressing assembly located between the first pressing assembly and the third pressing assembly, and an end of the seventh supporting platform close to the first supporting platform is within the projection range of the fourth pressing assembly on the horizontal plane.

[0022] The third pressing assembly presses the second side adjacent battery cell downwards and heats the second front adhesive film to soften the second front adhesive film, while the fourth pressing assembly remains in a high position. Therefore, the second front adhesive film outside the projection of the third pressing assembly on the horizontal plane is not pressed, so that, during the synchronous descent of the third pressing assembly and the seventh supporting platform, the second front adhesive film outside the projection of the third pressing assembly on the horizontal plane and the upper half of the second welding strip can be smoothly separated from the front side of the second side adjacent battery cell, so that the second front adhesive film and the upper half of the second welding strip form a second clamping gap between the second side adjacent battery cell and the second side adjacent battery cell.

[0023] In some embodiments, after the removal mechanism removes the defective unit from the rework platform, the film conveying mechanism is configured to place the first replacement back film on the first carrier and the second carrier, and the first carrier is configured to absorb the first replacement back film; the solder strip conveying mechanism is configured to place the lower half of the second replacement solder strip on the first replacement back film, and place the upper half of the second replacement solder strip on the front side of the adjacent battery cell on the second side; the battery cell conveying mechanism is configured to place the replacement battery cell on the lower half of the second replacement solder strip, and the film conveying mechanism is configured to place the second replacement front film on the upper half of the second replacement solder strip, and the third pressing assembly is configured to press the second replacement front film downward; the first carrier and the second carrier are configured to heat the first replacement back film, so that the first replacement back film pre-bonds the lower half of the second replacement solder strip to the back side of the replacement battery cell; the seventh carrier is configured to heat the second replacement front film, so that the second replacement front film pre-bonds the upper half of the second replacement solder strip to the adjacent battery cell on the second side; the film conveying mechanism The structure is also configured to place the second replacement back film on the third carrier, the fourth carrier and the fifth carrier, and the third carrier and the fourth carrier are configured to absorb the second replacement back film; the solder strip transport mechanism is also configured to place the upper half of the first replacement solder strip on the front of the replacement battery cell, and place the lower half of the first replacement solder strip on the second replacement back film; the second pressing assembly is also configured to descend synchronously with the sixth carrier, so that the battery cell adjacent to the first side falls on the lower half of the first replacement solder strip; the third carrier, the fourth carrier and the fifth ... first side adjacent battery cell falls on the lower half of the first replacement solder strip; the third carrier, the fourth carrier and the fifth carrier are configured to absorb the second replacement back film; the solder strip transport mechanism is also configured to place the upper half of the first replacement solder strip on the front of the replacement battery cell, and place the lower half of the first replacement solder strip on the second replacement back film; the second pressing assembly The carrier platform and the fifth carrier platform are also configured to heat the second replacement back side adhesive film so that the second replacement back side adhesive film pre-bonds the lower half of the first replacement solder strip to the back side of the battery cell adjacent to the first side; the adhesive film conveying mechanism is also configured to place the first replacement front side adhesive film on the upper half of the first replacement solder strip, and the first pressing assembly is configured to press the first replacement front side adhesive film; the first carrier platform and the second carrier platform are also configured to heat the first replacement front side adhesive film so that the first replacement front side adhesive film pre-bonds the upper half of the first replacement solder strip to the replacement battery cell.

[0024] By setting up the rework platform and the pressing mechanism, the film conveying mechanism, the solder strip conveying mechanism, the battery cell conveying mechanism, the rework platform and the pressing mechanism can cooperate with each other to lay the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film one by one into the battery string according to the stacking rules, thereby completing the automatic rework of the film-coated battery string.

[0025] In some embodiments, the solder strip handling mechanism includes a first clamp and a second clamp, and the first clamp and the second clamp are configured to cooperate to clamp the two ends of the second replacement solder strip or the two ends of the first replacement solder strip to implement the handling and placement of the second replacement solder strip or the first replacement solder strip.

[0026] The first clamp and the second clamp clamp the second replacement welding strip or the first replacement welding strip from both ends, and move the second replacement welding strip or the first replacement welding strip to the corresponding battery cell and the adhesive film, which can ensure that the second replacement welding strip or the first replacement welding strip can be tightly attached to the corresponding battery cell and the adhesive film.

[0027] In some embodiments, the solder strip handling mechanism places the lower half of the second replacement solder strip on the first replacement back film and places the upper half of the second replacement solder strip on the front side of the second side adjacent to the battery cell, and then keeps the second replacement solder strip clamped; the second carrier is configured to descend relative to the first carrier, so that the lower half of the second replacement solder strip and the end of the first replacement back film on the second carrier are suspended in the air; the second clamp holding the end of the lower half of the second replacement solder strip is configured to descend below the surface of the first carrier to avoid the replacement battery cell; the battery cell handling mechanism places the replacement solder strip on the front side adjacent to the first side, and keeps the second replacement solder strip clamped. After the battery cell is placed on the lower half of the second replacement solder strip, the first carrier platform is configured to heat the first replacement back side adhesive film on the first carrier platform, so that the first replacement back side adhesive film on the first carrier platform pre-bonds the lower half of the second replacement solder strip on the first carrier platform to the back side of the replacement battery cell, and the second clamp releases the end of the lower half of the second replacement solder strip; the second carrier platform is also configured to rise and return to its position, and heat the end of the first replacement back side adhesive film, so that the end of the first replacement back side adhesive film pre-bonds the end of the lower half of the second replacement solder strip to the back side of the replacement battery cell.

[0028] After the second carrier platform descends relative to the first carrier platform, the lower half of the second replacement solder strip and the end of the first replacement back film on the second carrier platform are suspended in the air, so that the second clamping jaws clamping the end of the lower half of the second replacement solder strip can descend to the bottom of the table of the first carrier platform, thereby avoiding the replacement battery cell. In addition, after the first replacement back film on the first carrier platform pre-bonds the lower half of the second replacement solder strip on the first carrier platform to the back of the replacement battery cell, the second clamping jaws release the end of the lower half of the second replacement solder strip, and the second carrier platform rises back to its original position and heats the end of the first replacement back film, thereby ensuring that the end of the first replacement back film pre-bonds the end of the lower half of the second replacement solder strip to the back of the replacement battery cell.

[0029] In some embodiments, the solder strip transport mechanism keeps the first replacement solder strip clamped after placing the lower half of the first replacement solder strip on the second replacement back film and the upper half of the first replacement solder strip on the replacement battery cell; the fifth carrier is configured to descend relative to the fourth carrier, so that the end of the lower half of the first replacement solder strip and the end of the second replacement back film on the fifth carrier are suspended; the second clamp holding the end of the lower half of the first replacement solder strip is configured to descend below the surface of the fourth carrier to avoid the first side adjacent battery cell; the first side adjacent battery cell falls onto the first replacement solder strip After the lower half of the first replacement solder strip is placed on the third carrier platform and the fourth carrier platform, the third carrier platform and the fourth carrier platform are configured to heat the second replacement back side adhesive film, so that the second replacement back side adhesive film located on the third carrier platform and the fourth carrier platform will pre-bond the lower half of the first replacement solder strip located on the third carrier platform and the fourth carrier platform to the back side of the adjacent battery cell on the first side, and the second clamp is configured to release the end of the lower half of the first replacement solder strip; the fifth carrier platform is also configured to rise and return to its position, and heat the end of the second back side adhesive film, so that the end of the second back side adhesive film will pre-bond the end of the lower half of the first replacement solder strip to the back side of the adjacent replacement battery cell on the first side.

[0030] The fifth carrier is configured so that after it is lowered relative to the fourth carrier, the end of the lower half of the first replacement solder strip and the end of the second replacement back film on the fifth carrier are suspended. In this way, the second clamping jaw clamping the end of the lower half of the first replacement solder strip can be lowered to below the table surface of the fourth carrier, thereby avoiding the first side adjacent battery cell. In addition, after the second replacement back film on the third and fourth carriers pre-bonds the lower half of the first replacement solder strip on the third and fourth carriers to the back of the first side adjacent battery cell, the second clamping jaw releases the end of the lower half of the first replacement solder strip, and the fifth carrier rises back to its original position and heats the end of the second back film, which can ensure that the end of the second back film pre-bonds the end of the lower half of the first replacement solder strip to the back of the first side adjacent replacement battery cell.

[0031] In some embodiments, the third pressing assembly is further configured to cooperate with the seventh carrier to heat the second replacement front adhesive film so that the second replacement front adhesive film will bond the upper half of the pre-bonded second replacement solder strip to the adjacent battery cell on the second side.

[0032] The third pressing assembly cooperates with the seventh supporting platform to heat the second replacement front adhesive film, so that the second replacement front adhesive film can accelerate the bonding of the upper half of the pre-bonded second replacement solder strip to the adjacent battery cell on the second side, thereby improving the rework efficiency.

[0033] In some embodiments, the first pressing assembly is also configured to cooperate with the first supporting platform and the second supporting platform to heat the first replacement front adhesive film and the first replacement back adhesive film, so that the first replacement front adhesive film will complete the upper half of the pre-bonded first replacement solder strip and bond it to the front side of the replacement battery cell, and the first replacement back adhesive film will complete the lower half of the pre-bonded second replacement solder strip and bond it to the back side of the replacement battery cell.

[0034] The first pressing assembly cooperates with the first supporting platform and the second supporting platform to heat the first replacement front adhesive film and the first replacement back adhesive film, so that the first replacement front adhesive film can speed up the bonding of the upper half of the pre-bonded first replacement solder strip to the front side of the replacement battery cell, and the first replacement back adhesive film can speed up the bonding of the lower half of the pre-bonded second replacement solder strip to the back side of the replacement battery cell, thereby improving the rework efficiency.

[0035] In some embodiments, the second pressing assembly is also configured to cooperate with the third carrier platform, the fourth carrier platform and the fifth carrier platform to heat the second replacement back side adhesive film so that the second replacement back side adhesive film will complete the pre-bonding of the lower half of the first replacement solder strip onto the back side of the adjacent battery cell on the first side.

[0036] The second pressing assembly cooperates with the third carrier, the fourth carrier and the fifth carrier to heat the second replacement back film, so that the second replacement back film can accelerate the bonding of the lower half of the pre-bonded first replacement solder strip to the back of the adjacent battery cell on the first side, thereby improving the rework efficiency.

[0037] In some embodiments, after the removal mechanism removes the defective unit from the rework platform, the film conveying mechanism is configured to place the second replacement back film on the third carrier, the fourth carrier and the fifth carrier, and the battery cell conveying mechanism and the solder strip conveying mechanism are configured to cooperate in picking up the replacement unit, the replacement unit includes a first replacement solder strip, a second replacement solder strip, a first replacement front film, a first replacement back film and a replacement battery cell, wherein the upper half of the first replacement solder strip is bonded to the front of the replacement battery cell via the first replacement front film, and the lower half of the second replacement solder strip is bonded to the back of the replacement battery cell via the first replacement back film; the battery cell conveying mechanism and the solder strip conveying mechanism are also configured to place the replacement unit on the rework platform, wherein the lower half of the first replacement solder strip is placed on the second replacement back film, and the replacement battery cell is placed The first carrier platform and the second carrier platform are placed on the second carrier platform, and the upper half of the second replacement solder strip is placed on the front side of the adjacent battery cell on the second side; the film conveying mechanism is also configured to place the second replacement front film on the upper half of the second replacement solder strip, and the third pressing assembly is also configured to press the second replacement front film downward; the seventh carrier platform is configured to heat the second replacement front film, so that the second replacement front film pre-bonds the upper half of the second replacement solder strip to the adjacent battery cell on the second side; the second pressing assembly is also configured to descend synchronously with the sixth carrier platform, so that the adjacent battery cell on the first side falls onto the lower half of the first replacement solder strip; the third carrier platform, the fourth carrier platform and the fifth carrier platform are also configured to heat the second replacement back film, so that the second replacement back film pre-bonds the lower half of the first replacement solder strip to the back side of the adjacent battery cell on the first side.

[0038] The replacement unit consisting of the first replacement solder strip, the second replacement solder strip, the first replacement front adhesive film, the first replacement back adhesive film and the replacement battery cell is integrally laid and bonded into the battery string, thereby improving the rework efficiency.

[0039] In some embodiments, the solder strip handling mechanism includes a first clamp and a second clamp. When picking up and placing the replacement unit, the first clamp is configured to clamp the end of the upper half of the second replacement solder strip, and the second clamp is configured to clamp the end of the lower half of the first replacement solder strip; after the battery cell handling mechanism and the solder strip handling mechanism place the replacement unit on the rework platform, the second clamp keeps the end of the lower half of the first replacement solder strip clamped; the fifth carrier is configured to descend relative to the fourth carrier, so that the end of the lower half of the first replacement solder strip and the end of the second replacement back film on the fifth carrier are suspended; the second clamp holding the end of the lower half of the first replacement solder strip is configured to descend to the platform of the fourth carrier. The third carrier platform and the fourth carrier platform are configured to heat the second replacement back surface adhesive film, so that the second replacement back surface adhesive film located on the third carrier platform and the fourth carrier platform will pre-bond the lower half of the first replacement solder strip located on the third carrier platform and the fourth carrier platform to the back side of the first side adjacent battery cell, and the second clamp is configured to release the end of the lower half of the first replacement solder strip; the fifth carrier platform is also configured to rise and return to its position, and heat the end of the second replacement back surface adhesive film, so that the end of the second replacement back surface adhesive film will pre-bond the end of the lower half of the first replacement solder strip to the back side of the first side adjacent battery cell.

[0040] After the fifth carrier platform descends relative to the fourth carrier platform, the end of the lower half of the first replacement solder strip and the end of the second replacement back film on the fifth carrier platform are suspended. In this way, the second clamping jaw clamping the end of the lower half of the first replacement solder strip can be lowered to the bottom of the table of the fourth carrier platform, thereby avoiding the adjacent battery cell on the first side. In addition, after the second replacement back film on the third and fourth carrier platforms pre-bonds the lower half of the first replacement solder strip on the third and fourth carrier platforms to the back of the adjacent battery cell on the first side, the second clamping jaw releases the end of the lower half of the first replacement solder strip, and the fifth carrier platform rises back to its original position and heats the end of the second back film, which can ensure that the end of the second back film pre-bonds the end of the lower half of the first replacement solder strip to the back of the adjacent replacement battery cell on the first side.

[0041] In some embodiments, the second pressing assembly is also configured to cooperate with the third carrier platform, the fourth carrier platform and the fifth carrier platform to heat the second replacement back side adhesive film so that the second replacement back side adhesive film will complete the pre-bonding of the lower half of the first replacement solder strip onto the back side of the adjacent battery cell on the first side.

[0042] The second pressing assembly cooperates with the third carrier, the fourth carrier and the fifth carrier to heat the second replacement back film, so that the second replacement back film can accelerate the bonding of the lower half of the pre-bonded first replacement solder strip to the back of the adjacent battery cell on the first side, thereby improving the rework efficiency.

[0043] In some embodiments, the third pressing assembly is further configured to cooperate with the seventh carrier to heat the second replacement front adhesive film so that the second replacement front adhesive film will bond the upper half of the pre-bonded second replacement solder strip to the adjacent battery cell on the second side.

[0044] The third pressing assembly cooperates with the seventh supporting platform to heat the second replacement front adhesive film, so that the second replacement front adhesive film can accelerate the bonding of the upper half of the pre-bonded second replacement solder strip to the adjacent battery cell on the second side, thereby improving the rework efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A schematic diagram of the structure of a battery string repair device carrying a battery string to be repaired according to the present application;

[0046] Figure 2 A schematic diagram of the first pressing assembly and the second pressing assembly pressing down and heating the defective battery cell and the battery cell adjacent to the first side in the present application;

[0047] Figure 3 This is a schematic diagram of the first clamping assembly in the present application clamping the first side adjacent battery sheet from the upper and lower sides;

[0048] Figure 4 It is a schematic diagram of the fourth and fifth carrier platforms in the present application being lowered and returned to their positions so that the second back adhesive film and the lower half of the first welding strip are completely separated from the adjacent battery cell on the first side;

[0049] Figure 5 It is a schematic diagram of the battery string repair device of the present application before disassembling the second front adhesive film and the upper half of the second welding strip;

[0050] Figure 6 It is a schematic diagram of the third pressing assembly and the seventh carrying platform in the present application being synchronously lowered so that the second front adhesive film and the end of the upper half of the second welding strip are separated from the adjacent battery cell on the second side;

[0051] Figure 7 This is a schematic diagram of the second clamping assembly in the present application clamping the second side adjacent battery sheet from the upper and lower sides;

[0052] Figure 8 It is a schematic diagram of the second clamping assembly and the seventh loading platform being synchronously lowered in the present application so that the second front adhesive film and the upper half of the second welding strip are completely separated from the adjacent battery cell on the second side;

[0053] Fig. 9 This is a schematic diagram of the removal mechanism in this application after removing the defective battery cell;

[0054] Fig.10It is a schematic diagram of the solder ribbon conveying mechanism in the present application conveying the second replacement solder ribbon to the first replacement back adhesive film and the second side adjacent battery cell;

[0055] Fig.11 It is a schematic diagram of the adhesive film conveying mechanism and the battery cell conveying mechanism in the present application after laying the second replacement front adhesive film and replacing the battery cell;

[0056] Fig.12 A schematic diagram of the third pressing component and the fourth pressing component in the present application heating and applying the second replacement front adhesive film;

[0057] Fig.13 It is a schematic diagram of the solder ribbon transport mechanism in the present application transporting the first replacement solder ribbon to the replacement battery cell and the second replacement back adhesive film;

[0058] Fig.14 This is a schematic diagram of the film transport mechanism in the present application after laying the first replacement front film;

[0059] Fig.15 This is a schematic diagram of the second pressing component and the third pressing component in the present application heating and applying two front adhesive films at the same time;

[0060] Fig.16 This is a schematic diagram of the battery cell transport mechanism in this application after laying out the replacement unit;

[0061] Fig.17 It is a schematic diagram of the film transport mechanism in the present application after laying the second replacement back film;

[0062] Fig.18 It is a schematic diagram of the film transport mechanism in the present application after laying the second replacement front film;

[0063] Fig.19 It is a schematic diagram of the third pressing assembly, the fourth pressing assembly, and the first pressing assembly in the present application descending to approach the first replacement front adhesive film and the second replacement front adhesive film;

[0064] Fig. 20 A schematic diagram of the solder ribbon transport mechanism in the present application releasing the first replacement solder ribbon and the second replacement solder ribbon;

[0065] Fig.21 It is a schematic diagram of the three pressing components, the fourth pressing component, the first pressing component and the second pressing component in the present application heating and applying three front adhesive films at the same time;

[0066] Figures 1 to 21 Included:

[0067] Rework Platform 1:

[0068] A first loading platform 11, a second loading platform 12, a third loading platform 13, a fourth loading platform 14, a fifth loading platform 15, a sixth loading platform 16, and a seventh loading platform 17;

[0069] Pressing mechanism 2:

[0070] A first pressing assembly 21, a second pressing assembly 22, a third pressing assembly 23, and a fourth pressing assembly 24;

[0071] Clamping mechanism 3:

[0072] A first clamping assembly 31 and a second clamping assembly 32;

[0073] Welding ribbon conveying mechanism 4:

[0074] A first clamping jaw 41 and a second clamping jaw 42;

[0075] Film transport mechanism 5;

[0076] Battery cell transport mechanism 6;

[0077] Defective battery cell 101, first welding strip 102, second welding strip 103, first back adhesive film 104, first front adhesive film 105, second back adhesive film 106, second front adhesive film 107, first side adjacent battery cell 108, second side adjacent battery cell 109;

[0078] Replacement battery cell 201 , first replacement solder strip 202 , second replacement solder strip 203 , first replacement back adhesive film 204 , first replacement front adhesive film 205 , second replacement back adhesive film 206 , second replacement front adhesive film 207 . DETAILED DESCRIPTION

[0079] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0080] like Figure 1 As shown, the battery string repair device of the present application includes a repair platform 1, a pressing mechanism 2, a clamping mechanism 3, a removal mechanism, a film conveying mechanism, a solder strip conveying mechanism and a battery cell conveying mechanism, wherein:

[0081] The repair platform 1 is configured to carry the battery string to be repaired, and is configured to cooperate with the pressing mechanism 2 and the clamping mechanism 3 to disassemble the defective unit from the battery string, wherein the defective unit is a defective battery cell 101 with a first welding ribbon 102, a second welding ribbon 103, a first back adhesive film 104, a first front adhesive film 105, a second back adhesive film 106 and a second front adhesive film 107, wherein before disassembly, the defective battery cell 101 is connected to the battery cell 108 adjacent to the first side through the first welding ribbon 102, and the upper half of the first welding ribbon 102 is The first side adjacent cell 108 is bonded to the front of the defective cell 101 through the first front adhesive film 105, the lower half of the first welding ribbon 102 is bonded to the back of the first side adjacent cell 108 through the second back adhesive film 106, the defective cell 101 is connected to the second side adjacent cell 109 through the second welding ribbon 103, the lower half of the second welding ribbon 103 is bonded to the back of the defective cell 101 through the first back adhesive film 104, and the upper half of the second welding ribbon 103 is bonded to the front of the second side adjacent cell 109 through the second front adhesive film 107. The first side adjacent cell 108 refers to the cell adjacent to the defective cell 101 located on the first side (e.g., right side) of the defective cell 101, and the second side adjacent cell 109 refers to the cell adjacent to the defective cell 101 located on the second side (e.g., left side) of the defective cell 101.

[0082] The removing mechanism is configured to remove the defective unit from the rework platform 1 .

[0083] The film conveying mechanism, the solder strip conveying mechanism and the battery cell conveying mechanism are configured to place the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film according to stacking rules to the position vacated after the defective unit is removed, and are configured to cooperate with the rework platform 1 and the pressing mechanism 2 to adhere the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film into the battery string.

[0084] The battery string repair device provided in the present application first removes the defective battery cell 101 with the first welding strip 102, the second welding strip 103, the first back adhesive film 104, the first front adhesive film 105, the second back adhesive film 106 and the second front adhesive film 107 from the battery string through the cooperation of the repair platform 1, the pressing mechanism 2 and the clamping mechanism. Then, the adhesive film conveying mechanism, the welding strip conveying mechanism, the battery cell conveying mechanism, the repair platform 1 and the pressing mechanism 2 cooperate with each other to adhere the first replacement back adhesive film, the second replacement welding strip, the replacement battery cell, the second replacement front adhesive film, the second replacement back adhesive film, the first replacement welding strip and the first replacement front adhesive film into the battery string according to the stacking rules, thereby completing the automatic repair of the film-coated battery string.

[0085] Optionally, the rework platform 1 includes a first carrier 11, a second carrier 12, a third carrier 13, a fourth carrier 14, a fifth carrier 15 and a sixth carrier 16 which are sequentially arranged on the first side of the first carrier 11 and can be lifted relative to the first carrier 11, and a seventh carrier 17 which is arranged on the second side of the first carrier 11 and can be lifted relative to the first carrier 11. The pressing mechanism 3 includes a first pressing component 21, a second pressing component 22 and a third pressing component 23 which can be lifted independently, the first pressing component 21 is arranged above the first carrier 11 and the second carrier 12, the second pressing component 22 is arranged above the third carrier 13, the fourth carrier 14 and the fifth carrier 15, and the third pressing component 23 is arranged above the seventh carrier 17, wherein the end of the seventh carrier 17 close to the first carrier 11 is located outside the projection of the third pressing component 23 on the horizontal plane. The clamping mechanism 3 includes a first clamping component 31 and a second clamping component 32.

[0086] The first carrier 11 and the second carrier 12 are configured to carry and absorb the defective battery cell 101, the third carrier 13, the fourth carrier 14 and the fifth carrier 15 are configured to carry and absorb the first side adjacent battery cell 108, the sixth carrier 16 is configured to carry and absorb all battery cells in the battery string located on the first side of the first side adjacent battery cell 108, and the seventh carrier 17 is configured to carry and absorb all battery cells in the battery string located on the second side of the defective battery cell.

[0087] The first pressing assembly 21 and the second pressing assembly 22 are configured to descend synchronously to respectively press down the defective battery cell 101 and the first side adjacent battery cell 108, and the second pressing assembly 22 is also configured to heat the second backside adhesive film 106 to soften the second backside adhesive film 106. The second pressing assembly 22 is also configured to rise synchronously with the fourth carrier 14, the fifth carrier 15, and the sixth carrier 16, so that the second backside adhesive film 106 and the lower half of the first welding strip 102 located on the third carrier 13 are separated from the back side of the first side adjacent battery cell 108, and a first clamping gap is formed between the second backside adhesive film 106 and the lower half of the first welding strip 102 and the first side adjacent battery cell 108.

[0088] The first clamping assembly 31 is configured to clamp the first side adjacent battery cell 108 from the upper and lower sides through the first clamping gap. The first clamping assembly 31 is also configured to continue to rise synchronously with the sixth supporting platform 16. The fourth supporting platform 14 and the fifth supporting platform 15 are configured to drive the second back side adhesive film 106 and the lower half of the first welding strip 102 to descend and return to their positions, so that the second back side adhesive film 106 and the lower half of the first welding strip 102 are completely separated from the first side adjacent battery cell 108.

[0089] The third pressing component 23 is configured to press downward the second side adjacent battery cell 109 and heat the second front side adhesive film 107 to soften the second front side adhesive film 107. The third pressing component 23 is also configured to descend synchronously with the seventh supporting platform 17 so that the second front side adhesive film 107 and the upper half of the second welding strip 103 outside the projection of the third pressing component 23 on the horizontal plane are separated from the front side of the second side adjacent battery cell 109, and a second clamping gap is formed between the second front side adhesive film 107 and the upper half of the second welding strip 103 and the second side adjacent battery cell 109.

[0090] The second clamping assembly 32 is configured to clamp the second side adjacent battery cell 109 from the upper and lower sides through the second clamping gap, and the third pressing assembly 23 is also configured to rise to separate from the second front side adhesive film 107. The second clamping assembly 32 is also configured to continue to descend synchronously with the seventh supporting platform 17, so that the second front side adhesive film 107 and the upper half of the second welding strip 102 are completely separated from the second side adjacent battery cell.

[0091] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, Figures 2 to 9 , the cooperation among the rework platform 1, the pressing mechanism 2 and the clamping mechanism is introduced in detail, and the disassembly and removal process of the defective unit is described exemplarily.

[0092] First, the second backside adhesive film 106 and the upper half of the first soldering ribbon 102 are disassembled from the first side adjacent to the battery cell 108, as follows:

[0093] First, if Figure 2 As shown, the battery string to be repaired is placed on the repair platform 1, wherein the defective battery cell 101 is adsorbed on the first carrier 11, the first side adjacent battery cell 108 is adsorbed on the third carrier 13, the fourth carrier 14 and the fifth carrier 15, all battery cells located on the first side of the first side adjacent battery cell 108 are adsorbed on the sixth carrier 16, and all battery cells located on the second side of the defective battery cell 101 are adsorbed on the seventh carrier 17.

[0094] Then, if Figure 3 As shown, the first pressing assembly 21 and the second pressing assembly 22 are synchronously lowered to respectively press down the defective battery cell 101 and the first side adjacent battery cell 108, and in addition, the second pressing assembly 22 heats the second back adhesive film 106 to soften the second back adhesive film 106. Optionally, in order to accelerate the softening of the second back adhesive film 106, when the second pressing assembly 22 heats the second back adhesive film 106, the fourth carrier 14 and the fifth carrier 15 heat the second back adhesive film 106 synchronously.

[0095] After the second back adhesive film 106 is fully softened and the bonding strength is significantly reduced, the second pressing assembly 22 rises synchronously with the fourth bearing platform 14, the fifth bearing platform 15 and the sixth bearing platform 16, so that the second back adhesive film 106 and the lower half of the first welding strip 102 on the third bearing platform 13 are separated from the back of the first side adjacent battery cell 108, and a first clamping gap A is formed between the second back adhesive film 106 and the lower half of the first welding strip 102 and the first side adjacent battery cell 108. Then, the first clamping assembly 31 clamps the first side adjacent battery cell 108 from both upper and lower sides through the first clamping gap A. Optionally, the first clamping assembly 31 is rotatably connected to the second pressing assembly 22, and the upper and lower ends of the first clamping assembly 31 are clamping ends. When the first clamping assembly 31 rotates downward, the lower clamping end of the first clamping assembly 31 is inserted into the first clamping gap A to clamp the first side adjacent battery cell 108 from both upper and lower sides.

[0096] Then, if Figure 4 As shown, the first clamping assembly 31 and the sixth carrier 16 continue to rise synchronously, and the fourth carrier 14 and the fifth carrier 15 are configured to drive the second back adhesive film 106 and the lower half of the first solder strip 102 to descend and return to their positions, so that the second back adhesive film 106 and the lower half of the first solder strip 102 are completely separated from the first side adjacent battery cell 108. Then, the first clamping assembly 31 rotates upward to return to its position, releasing the first side adjacent battery cell 108. Optionally, in order to keep the first side adjacent battery cell 108 at a high position, the second pressing assembly 22 adsorbs the first side adjacent battery cell 108 when the first clamping assembly 31 releases the first side adjacent battery cell 108.

[0097] Next, the second front adhesive film 107 and the upper half of the second soldering ribbon 103 are removed from the second side adjacent battery cell 109 as follows:

[0098] Before the second front adhesive film 107 and the upper half of the second soldering ribbon 103 are repaired, the working state of the battery string repair device of the present application is as follows: Figure 5 shown.

[0099] like Figure 6 As shown, first, the third pressing assembly 23 presses the second side adjacent battery sheet 109 downward, and heats the second front adhesive film 107 to soften the second front adhesive film 107. Optionally, in order to accelerate the softening of the second front adhesive film 107, the seventh carrier 17 heats the second front adhesive film 107 simultaneously.

[0100] After the second front adhesive film 107 is fully softened and the bonding strength is significantly reduced, the third pressing assembly 23 and the seventh supporting platform 17 descend synchronously, so that the second front adhesive film 107 and the upper half of the second welding strip 103 located outside the projection of the third pressing assembly 23 on the horizontal plane are separated from the front side of the second side adjacent battery cell 109, and a second clamping gap B is formed between the second front adhesive film 107 and the upper half of the second welding strip 103 and the second side adjacent battery cell 109.

[0101] like Figure 7 As shown, the second clamping assembly 32 clamps the second side adjacent battery cell 109 from both upper and lower sides through the second clamping gap B, and at the same time, the third pressing assembly 23 rises to separate from the second front adhesive film 107. Optionally, the second clamping assembly 32 is rotatably connected to the seventh carrier 17, and the upper and lower ends of the second clamping assembly 32 are clamping ends. When the second clamping assembly 32 rotates upward, the clamping end of the second clamping assembly 32 located at the top is inserted into the second clamping gap B to clamp the second side adjacent battery cell 109 from both upper and lower sides.

[0102] like Figure 8 As shown, the second clamping assembly 32 and the seventh carrier 17 continue to descend synchronously, so that the second front adhesive film 107 and the upper half of the second welding strip 103 are completely separated from the second side adjacent battery cell 109. The second clamping assembly 32 rotates downward to release the second side adjacent battery cell 109.

[0103] like Fig. 9 As shown, the seventh carrier 17 drives all the cells located on the second side of the defective cell to rise and reset. In addition, the removal mechanism is configured to remove the disassembled defective unit from the rework platform.

[0104] At this point, the disassembly and removal of the defective unit is completed. It should be noted that the second front adhesive film 107 and the upper half of the second solder strip 103 can also be disassembled from the second side adjacent battery cell 109 first, and then the second back adhesive film 106 and the upper half of the first solder strip 102 can be disassembled from the first side adjacent battery cell 108. Of course, in order to improve the disassembly efficiency, in the process of disassembling the second back adhesive film 106 and the upper half of the first solder strip 102 from the first side adjacent battery cell 108, the second front adhesive film 107 and the upper half of the second solder strip 103 can be disassembled from the second side adjacent battery cell 109 simultaneously.

[0105] Optionally, the pressing mechanism 2 further includes a fourth pressing assembly 24 located between the first pressing assembly 21 and the third pressing assembly 23 , and the end of the seventh supporting platform 17 close to the first supporting platform 11 is within the projection range of the fourth pressing assembly 24 on the horizontal plane.

[0106] The third pressing assembly 23 presses the second side adjacent battery cell 109 downwards and heats the second front adhesive film 107 to soften the second front adhesive film 107, while the fourth pressing assembly 24 remains in a high position. Therefore, the second front adhesive film outside the projection of the third pressing assembly 23 on the horizontal plane is not pressed, so that, during the synchronous descent of the third pressing assembly 23 and the seventh carrier 17, the second front adhesive film 107 outside the projection of the third pressing assembly 23 on the horizontal plane and the upper half of the second welding strip 103 can be smoothly separated from the front side of the second side adjacent battery cell 109, so that the second front adhesive film 107 and the upper half of the second welding strip 103 form a second clamping gap A between the second front adhesive film 107 and the upper half of the second welding strip 103 and the second side adjacent battery cell 109.

[0107] After removing the defective unit from the repair platform 1, the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film can be laid to complete the repair of the battery string.

[0108] In an optional implementation, the battery string repair device in the embodiment of the present application is configured to lay and bond the first replacement back adhesive film, the second replacement solder strip, the replacement battery sheet, the second replacement front adhesive film, the second replacement back adhesive film, the first replacement solder strip and the first replacement front adhesive film one by one into the battery string according to the stacking rule to complete the repair of the battery string, wherein:

[0109] The film conveying mechanism 5 is configured to place the first replacement back film on the first carrier 11 and the second carrier 12, and the first carrier 11 is configured to absorb the first replacement back film. The soldering ribbon conveying mechanism 4 is configured to place the lower half of the second replacement soldering ribbon on the first replacement back film, and place the upper half of the second replacement soldering ribbon on the front side of the second side adjacent to the battery cell 108.

[0110] The cell transport mechanism 6 is configured to place the replacement cell on the lower half of the second replacement solder strip, and the film transport mechanism 5 is configured to place the second replacement front film on the upper half of the second replacement solder strip.

[0111] The third pressing assembly 23 is configured to press the second replacement front adhesive film downward. The first carrier 11 and the second carrier 12 are configured to heat the first replacement back adhesive film so that the first replacement back adhesive film pre-bonds the lower half of the second replacement solder strip to the back of the replacement battery cell. The seventh carrier 17 is configured to heat the second replacement front adhesive film so that the second replacement front adhesive film pre-bonds the upper half of the second replacement solder strip to the second side adjacent battery cell 109.

[0112] The film transport mechanism 5 is further configured to place the second replacement back film on the third carrier 13, the fourth carrier 14 and the fifth carrier 15, and the third carrier 13 and the fourth carrier 14 are configured to absorb the second replacement back film. The solder strip transport mechanism 4 is further configured to place the upper half of the first replacement solder strip on the front of the replacement battery cell, and place the lower half of the first replacement solder strip on the second replacement back film.

[0113] The second pressing assembly 22 is also configured to descend synchronously with the sixth loading platform 16, so that the first side adjacent battery cell 108 falls onto the lower half of the first replacement solder strip. The third loading platform 13, the fourth loading platform 14 and the fifth loading platform 15 are also configured to heat the second replacement back adhesive film, so that the second replacement back adhesive film pre-bonds the lower half of the first replacement solder strip onto the back of the first side adjacent battery cell 108.

[0114] The film transport mechanism 5 is further configured to place the first replacement front film on the upper half of the first replacement solder strip, and the first pressing assembly 21 is configured to press the first replacement front film. The first carrier 11 and the second carrier 12 are further configured to heat the first replacement front film so that the first replacement front film pre-bonds the upper half of the first replacement solder strip to the replacement battery cell.

[0115] The following will combine Figures 10 to 15 , the laying and repair process of the battery string repair device in the embodiment of the present application is explained.

[0116] First, if Fig.10 As shown, the film transport mechanism places the first replacement back film 204 on the first carrier 11 and the second carrier 12, and the first carrier 11 absorbs the first replacement back film 204. Subsequently, the solder ribbon transport mechanism 4 places the lower half of the second replacement solder ribbon 203 on the first replacement back film 204, and places the upper half of the second replacement solder ribbon 203 on the front side of the second side adjacent to the battery cell 109.

[0117] Then, if Fig.11As shown, the cell transport mechanism 5 places the replacement cell 201 on the lower half of the second replacement solder strip 203, and the film transport mechanism 6 places the second replacement front film 207 on the upper half of the second replacement solder strip 203. The third pressing assembly 23 presses the second replacement front film 207 downwards, while the first carrier 11 and the second carrier 12 heat the first replacement back film 204, so that the first replacement back film 204 pre-bonds the lower half of the second replacement solder strip 203 to the back of the replacement cell. The seventh carrier 17 is configured to heat the second replacement front film 207, so that the second replacement front film 207 pre-bonds the upper half of the second replacement solder strip 203 to the second side adjacent cell 109. Optionally, the first pressing assembly 21 cooperates with the first carrier 11 and the second carrier 12 to heat the first replacement back adhesive film 204, so that the first replacement back adhesive film 204 accelerates the pre-bonding of the lower half of the second replacement solder strip 203 to the back of the replacement battery cell 201. The third pressing assembly 23 cooperates with the seventh carrier 17 to heat the second replacement front adhesive film 207, so that the second replacement front adhesive film 207 accelerates the bonding of the upper half of the pre-bonded second replacement solder strip 203 to the adjacent battery cell 109 on the second side, thereby improving the rework efficiency.

[0118] Then, if Fig.12 As shown, the film transport mechanism 5 places the second replacement back film 206 on the third carrier 13, the fourth carrier 14 and the fifth carrier 15, and the third carrier 13 and the fourth carrier 14 are configured to absorb the second replacement back film 206. The solder ribbon transport mechanism 4 then places the upper half of the first replacement solder ribbon 202 on the front side of the replacement battery cell 201, and places the lower half of the first replacement solder ribbon 202 on the second replacement back film 206.

[0119] Then, if Fig.13 As shown, the second pressing assembly 22 and the sixth loading platform 16 are synchronously lowered, so that the first side adjacent battery cell 108 falls onto the lower half of the first replacement solder strip 202. Subsequently, the third loading platform 13, the fourth loading platform 14 and the fifth loading platform 15 heat the second replacement back adhesive film 108, so that the second replacement back adhesive film 108 pre-bonds the lower half of the first replacement solder strip to the back side of the first side adjacent battery cell 108. Optionally, the second pressing assembly 22 cooperates with the third loading platform 13, the fourth loading platform 14 and the fifth loading platform 15 to heat the second replacement back adhesive film 108, so that the second replacement back adhesive film 108 accelerates the bonding of the lower half of the pre-bonded first replacement solder strip 202 to the back side of the first side adjacent battery cell 108, thereby improving the rework efficiency.

[0120] Then, if Fig.14As shown, the film transport mechanism 5 places the first replacement front film 205 on the upper half of the first replacement solder strip 202, and the first pressing assembly 21 presses the first replacement front film 205. Subsequently, the first carrier 11 and the second carrier 12 heat the first replacement front film 205, so that the first replacement front film 205 pre-bonds the upper half of the first replacement solder strip 202 to the replacement battery cell 201. Optionally, the first pressing assembly 21 cooperates with the first carrier 11 and the second carrier 12 to heat the first replacement front film 205, so that the first replacement front film 205 accelerates the pre-bonding of the upper half of the first replacement solder strip 202 to the replacement battery cell 201, thereby improving the rework efficiency.

[0121] It can be seen that through the cooperation of the adhesive film conveying mechanism 5, the solder strip conveying mechanism 4, the battery cell conveying mechanism 5, the rework platform 1 and the pressing mechanism 2, the battery string rework device in the embodiment of the present application lays the first replacement back adhesive film 204, the second replacement solder strip 203, the replacement battery cell 201, the second replacement front adhesive film 207, the second replacement back adhesive film 206, the first replacement solder strip 202 and the first replacement front adhesive film 205 one by one into the battery string according to the stacking rules, thereby completing the automatic rework of the coated battery string.

[0122] Continue to refer Figures 10 to 15 As shown, optionally, the solder strip transport mechanism 4 includes a first clamp 41 and a second clamp 42, and the first clamp 41 and the second clamp 43 cooperate to clamp the two ends of the second replacement solder strip 203 or the two ends of the first replacement solder strip 202 to implement the transport and placement of the second replacement solder strip 203 or the first replacement solder strip 202.

[0123] The first clamping jaw 41 and the second clamping jaw 42 carry and place the replacement soldering ribbon from both ends, so as to ensure that the replacement soldering ribbon can be closely attached to the corresponding battery cell and adhesive film.

[0124] like Figure 10 to Figure 11 As shown, optionally, the solder strip transport mechanism 4 places the lower half of the second replacement solder strip 203 on the first replacement back adhesive film 204, and places the upper half of the second replacement solder strip 203 on the front side of the second side adjacent to the battery cell 109, and then keeps the second replacement solder strip 203 clamped. The second carrier 12 is lowered relative to the first carrier 11, so that the lower half of the second replacement solder strip 203 and the end of the first replacement back adhesive film 204 on the second carrier 12 are suspended. Subsequently, the second clamping jaw 42 clamping the end of the lower half of the second replacement solder strip 203 is lowered to the bottom of the table of the first carrier 11 to avoid the replacement battery cell 201.

[0125] After the battery cell transport mechanism 5 places the replacement battery cell 201 on the lower half of the second replacement welding strip 203, the first carrier platform 11 heats the first replacement back side adhesive film 204 on the first carrier platform 11, so that the first replacement back side adhesive film 204 on the first carrier platform 11 pre-bonds the lower half of the second replacement welding strip 203 on the first carrier platform 11 to the back side of the replacement battery cell 201.

[0126] Then, if Fig.12 As shown, the second clamping jaw 42 releases the end of the lower half of the second replacement solder strip 203. The second carrier 12 rises and returns to its original position, and heats the end of the first replacement back adhesive film 204, so that the end of the first replacement back adhesive film 204 pre-bonds the end of the lower half of the second replacement solder strip 203 to the back of the replacement battery cell 201.

[0127] In this way, it can be ensured that the first replacement back adhesive film 204 can firmly pre-bond the lower half of the second replacement welding ribbon 203 to the back side of the replacement battery cell 201 .

[0128] Similarly, if Figure 13 to Figure 14 As shown, optionally, the solder ribbon transport mechanism 4 keeps clamping the first replacement solder ribbon 202 after placing the lower half of the first replacement solder ribbon 202 on the second replacement back adhesive film 206 and placing the upper half of the first replacement solder ribbon 202 on the replacement battery cell 201. The fifth carrier 15 is lowered relative to the fourth carrier 14, so that the end of the lower half of the first replacement solder ribbon 202 and the end of the second replacement back adhesive film 206 on the fifth carrier 15 are suspended. Subsequently, the second clamping jaw 42 clamping the end of the lower half of the first replacement solder ribbon 202 is configured to descend below the table of the fourth carrier 14 to avoid the first side adjacent battery cell 108.

[0129] After the first side adjacent battery cell 108 falls onto the lower half of the first replacement solder strip 202, the third carrier platform 13 and the fourth carrier platform 14 heat the second replacement back side adhesive film 206, so that the second replacement back side adhesive film 206 located on the third carrier platform 13 and the fourth carrier platform 14 will pre-bond the lower half of the first replacement solder strip 202 located on the third carrier platform 13 and the fourth carrier platform 14 to the back side of the first side adjacent battery cell 108.

[0130] Next, the second clamp 42 releases the end of the lower half of the first replacement solder strip 202. The fifth carrier 15 rises and returns to its original position, and heats the end of the second replacement back adhesive film 206, so that the end of the second replacement back adhesive film 206 pre-bonds the end of the lower half of the first replacement solder strip 202 to the back of the replacement battery sheet 108 adjacent to the first side.

[0131] In this way, it can be ensured that the second replacement backside adhesive film 206 firmly pre-bonds the lower half of the first replacement solder strip 202 onto the backside of the first side adjacent to the battery cell 108 .

[0132] In another optional implementation, the battery string rework device in the embodiment of the present application is configured to lay and bond the second replacement back side adhesive film, the replacement unit consisting of the first replacement welding ribbon, the second replacement welding ribbon, the first replacement front side adhesive film, the first replacement back side adhesive film and the replacement battery cell, and the second replacement front side adhesive film into the battery string according to stacking rules to complete the rework of the battery string.

[0133] like Fig.16 As shown, the replacement unit includes a first replacement welding ribbon 202, a second replacement welding ribbon 203, a first replacement front adhesive film 205, a first replacement back adhesive film 204 and a replacement battery cell 201, wherein the upper half of the first replacement welding ribbon 202 is bonded to the front of the replacement battery cell 201 via the first replacement front adhesive film 205, and the lower half of the second replacement welding ribbon 203 is bonded to the back of the replacement battery cell 201 via the first replacement back adhesive film 204. That is to say, before the formal laying is implemented, the first replacement welding ribbon 202, the second replacement welding ribbon 203, the first replacement front adhesive film 205, the first replacement back adhesive film 204 and the replacement battery cell 201 are pre-bonded into a replacement unit.

[0134] After the removal mechanism removes the defective unit from the rework platform 1 , the film transport mechanism 5 is configured to place the second replacement back film 206 on the third loading platform 13 , the fourth loading platform 14 and the fifth loading platform 15 .

[0135] The cell conveying mechanism 6 and the solder strip conveying mechanism 4 are configured to cooperate in picking up the replacement unit and placing the replacement unit on the rework platform 1, wherein: the lower half of the first replacement solder strip 202 is placed on the second replacement back adhesive film 206, the replacement cell 201 is placed on the first carrier 11 and the second carrier 12, and the upper half of the second replacement solder strip 203 is placed on the front side of the second side adjacent to the cell 109. The adhesive film conveying mechanism 5 is also configured to place the second replacement front adhesive film 207 on the upper half of the second replacement solder strip 203, and the third pressing assembly 23 is also configured to press the second replacement front adhesive film 207 downward. The seventh carrier 17 is configured to heat the second replacement front adhesive film 207, so that the second replacement front adhesive film 207 pre-bonds the upper half of the second replacement solder strip 203 to the second side adjacent to the cell 109. The second pressing assembly 22 is further configured to be synchronously lowered with the sixth loading platform 16, so that the first side adjacent battery cell 108 falls onto the lower half of the first replacement solder strip 202. The third loading platform 13, the fourth loading platform 14 and the fifth loading platform 15 are further configured to heat the second replacement back adhesive film 206, so that the second replacement back adhesive film 206 pre-bonds the lower half of the first replacement solder strip 202 onto the back of the first side adjacent battery cell 108.

[0136] The following will combine Figures 17 to 21 , the laying and repair process of the battery string repair device in the embodiment of the present application is explained.

[0137] First, if Fig.17 As shown, the film transporting mechanism 5 places the second replacement back film 206 on the third loading platform 13 , the fourth loading platform 14 and the fifth loading platform 15 .

[0138] Then, if Fig.18 As shown, the cell transport mechanism 6 and the solder strip transport mechanism 4 cooperate to place the replacement unit onto the rework platform 1, wherein: the lower half of the first replacement solder strip 202 is placed on the second replacement back adhesive film 206, the replacement cell 201 is placed on the first carrier platform 11 and the second carrier platform 12, and the upper half of the second replacement solder strip 203 is placed on the front side of the second side adjacent to the cell 109.

[0139] Then, if Fig.19 As shown, the film transport mechanism 5 places the second replacement front film 207 on the upper half of the second replacement solder strip 203. At the same time, the second pressing assembly 22 and the sixth supporting platform 16 descend synchronously, so that the first side adjacent battery cell 108 falls on the lower half of the first replacement solder strip 202.

[0140] Then, if Figure 20 to Figure 21As shown, the third pressing assembly 23 and the fourth pressing assembly 24 press the second replacement front adhesive film 207 downward, and the seventh carrier 17 heats the second replacement front adhesive film 207, so that the second replacement front adhesive film 207 pre-bonds the upper half of the second replacement solder strip 203 to the second side adjacent battery cell 109. Optionally, the third pressing assembly 23 cooperates with the seventh carrier 17 to heat the second replacement front adhesive film 207, so that the second replacement front adhesive film 207 accelerates the pre-bonding of the upper half of the second replacement solder strip 203 to the second side adjacent battery cell 109, so as to improve the rework efficiency.

[0141] At the same time, the third carrier 13, the fourth carrier 14 and the fifth carrier 15 heat the second replacement back adhesive film 206, so that the second replacement back adhesive film 206 pre-bonds the lower half of the first replacement solder strip 202 to the back of the first side adjacent battery cell 108. Optionally, the second pressing assembly 22 cooperates with the third carrier 13, the fourth carrier 14 and the fifth carrier 15 to heat the second replacement back adhesive film 206, so that the second replacement back adhesive film 206 accelerates the pre-bonding of the lower half of the first replacement solder strip 202 to the back of the first side adjacent battery cell 108, thereby improving the rework efficiency.

[0142] Continue to participate Figures 17 to 21 As shown, optionally, the solder strip handling mechanism 4 includes a first clamp 41 and a second clamp 42. When picking up and placing the replacement unit, the first clamp 41 is configured to clamp the end of the upper half of the second replacement solder strip 203, and the second clamp 42 is configured to clamp the end of the lower half of the first replacement solder strip 202.

[0143] After the cell transport mechanism 6 and the solder strip transport mechanism 4 place the replacement unit on the rework platform 1, the second clamping jaw 42 keeps clamping the end of the lower half of the first replacement solder strip 202. The fifth carrier 15 descends relative to the fourth carrier 14, so that the end of the lower half of the first replacement solder strip 202 and the end of the second replacement back adhesive film 206 on the fifth carrier 15 are suspended.

[0144] Subsequently, the second clamping jaw 42 clamping the end of the lower half of the first replacement solder strip 202 is lowered to below the table surface of the fourth carrier 14 to avoid the first side adjacent battery cell 108. After the first side adjacent battery cell 108 falls onto the lower half of the first replacement solder strip 202, the third carrier 13 and the fourth carrier 14 heat the second replacement back adhesive film 206, so that the second replacement back adhesive film 206 on the third carrier 13 and the fourth carrier 14 pre-bonds the lower half of the first replacement solder strip 202 on the third carrier 13 and the fourth carrier 14 to the back of the first side adjacent battery cell 108.

[0145] Next, the second clamp 42 releases the end of the lower half of the first replacement solder strip 202, the fifth carrier platform 15 rises back to its position, and heats the end of the second replacement back side adhesive film 206, so that the end of the second replacement back side adhesive film 206 pre-bonds the end of the lower half of the first replacement solder strip 202 to the back side of the adjacent battery cell 108 on the first side.

[0146] In this way, it can be ensured that the second replacement backside adhesive film 206 firmly pre-bonds the lower half of the first replacement solder strip 202 onto the backside of the first side adjacent to the battery cell 108 .

[0147] The present application also provides a battery string repair method, which includes:

[0148] Step S1, disassembling a defective unit from a battery string, wherein the defective unit is a defective battery cell with a first welding strip, a second welding strip, a first back adhesive film, a first front adhesive film, a second back adhesive film and a second front adhesive film, wherein before disassembly, the defective battery cell is connected to a battery cell adjacent to the first side through the first welding strip, the upper half of the first welding strip is bonded to the front side of the defective battery cell through the first front adhesive film, the lower half of the first welding strip is bonded to the back side of the battery cell adjacent to the first side through the second back adhesive film, the defective battery cell is connected to a battery cell adjacent to the second side through the second welding strip, the lower half of the second welding strip is bonded to the back side of the defective battery cell through the first back adhesive film, and the upper half of the second welding strip is bonded to the front side of the battery cell adjacent to the second side through the second front adhesive film;

[0149] Step S2, removing the disassembled defective unit;

[0150] Step S3, placing the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film according to the stacking rules of the battery string to the position vacated after the defective unit is removed, and bonding the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film into the battery string.

[0151] In the battery string repair method in the embodiment of the present application, the defective battery cell with the first welding ribbon, the second welding ribbon, the first back adhesive film, the first front adhesive film, the second back adhesive film and the second front adhesive film is first disassembled and removed from the battery string. Then, the first replacement back adhesive film, the second replacement welding ribbon, the replacement battery cell, the second replacement front adhesive film, the second replacement back adhesive film, the first replacement welding ribbon and the first replacement front adhesive film are laid into the battery string according to the stacking rules, thereby completing the automatic repair of the film-coated battery string.

[0152] Optionally, step S1 includes: step S11, disassembling the second back adhesive film and the lower half of the first solder strip from the back of the first side adjacent to the battery cell. Step S12, disassembling the second front adhesive film and the upper half of the second solder strip from the front of the second side adjacent to the battery cell.

[0153] Step S11 can be implemented before step S12, that is, first remove the second back adhesive film and the lower half of the first welding strip from the back of the first side adjacent to the battery cell, and then remove the second front adhesive film and the upper half of the second welding strip from the front of the second side adjacent to the battery cell.

[0154] Step S12 can be implemented before step S11, that is, first remove the second front adhesive film and the upper half of the second welding strip from the front side adjacent to the battery cell, and then remove the second back adhesive film and the lower half of the first welding strip from the back side adjacent to the battery cell.

[0155] Of course, in order to improve the disassembly efficiency, step S12 and step S13 can also be implemented simultaneously, that is, the second back side adhesive film and the lower half of the first welding strip are disassembled from the back side of the battery cell adjacent to the first side, and the second front side adhesive film and the upper half of the second welding strip are disassembled from the front side of the battery cell adjacent to the second side.

[0156] Optionally, step S11 includes: step S111, heating the second back side adhesive film to soften the second back side adhesive film. Step S112, controlling the first side adjacent battery cell and other battery cells located on the first side of the defective battery cell to rise relative to the defective battery cell, so that the second back side adhesive film and the lower half of the first welding strip are partially separated from the back of the first side adjacent battery cell, and a first clamping gap is formed between the second back side adhesive film and the lower half of the first welding strip and the first side adjacent battery cell. Step S113, clamping the first side adjacent battery cell from the upper and lower sides through the first clamping gap. Step S114, controlling the first side adjacent battery cell and other battery cells located on the first side of the defective battery cell to continue to rise, and controlling the second back side adhesive film and the lower half of the first welding strip to descend and return to their positions, so that the second back side adhesive film and the lower half of the first welding strip are completely separated from the first side adjacent battery cell.

[0157] By clamping the first side adjacent battery cell from the upper and lower sides, it is ensured that the second back side adhesive film and the lower half of the first welding strip can be completely separated from the first side adjacent battery cell during the process of the first side adjacent battery cell and other battery cells located on the first side of the defective battery cell continuing to rise.

[0158] Optionally, step S12 includes: step S121, heating the second front side adhesive film to soften the second front side adhesive film; step S122, controlling all battery cells located on the first side of the defective battery cell to descend relative to the defective battery cell, so that the second front side adhesive film and the upper half of the second welding strip are partially separated from the front side of the adjacent battery cell on the second side, and a second clamping gap is formed between the second front side adhesive film and the upper half of the second welding strip and the adjacent battery cell on the second side; step S123, clamping the adjacent battery cell on the second side from the upper and lower sides through the second clamping gap; step S124, controlling all battery cells on the first side of the defective battery cell to continue to descend, so that the second back side adhesive film and the upper half of the second welding strip are completely separated from the adjacent battery cell on the second side.

[0159] Similarly, by clamping the adjacent battery cell on the second side from the upper and lower sides, it is ensured that during the descent of all battery cells on the first side of the defective battery cell, the second back surface adhesive film and the upper half of the second welding strip can be completely separated from the adjacent battery cell on the second side.

[0160] In an optional implementation, step S3 includes:

[0161] Step S31: placing a first replacement backside adhesive film at the position vacated after the defective battery cell is removed.

[0162] Step S32: placing the lower half of the second replacement soldering ribbon on the first replacement back adhesive film, and placing the upper half of the second replacement soldering ribbon on the front side of the second side adjacent to the battery cell.

[0163] Step S33, placing the replacement cell onto the lower half of the second replacement solder strip, and heating the first replacement backside adhesive film so that the first replacement backside adhesive film adheres the lower half of the second replacement solder strip to the backside of the replacement cell.

[0164] Step S34, placing the second replacement front adhesive film on the upper half of the second replacement solder strip, and heating the second replacement front adhesive film so that the second replacement front adhesive film adheres the upper half of the second replacement solder strip to the adjacent battery cell on the second side.

[0165] Step S35, placing a second replacement back adhesive film at the position vacated after the second back adhesive film is removed.

[0166] Step S36: placing the upper half of the first replacement solder strip on the front surface of the replacement battery cell, and placing the lower half of the first replacement solder strip on the second replacement back adhesive film.

[0167] Step S37, control the first side adjacent battery cell to descend to the lower half of the first replacement solder strip, and heat the second replacement back adhesive film so that the second replacement back adhesive film adheres the lower half of the first replacement solder strip to the back side of the first side adjacent battery cell.

[0168] Step S38, placing the first replacement front adhesive film on the upper half of the first replacement solder strip, and heating the first replacement front adhesive film so that the first replacement front adhesive film adheres the upper half of the first replacement solder strip to the replacement battery cell.

[0169] That is, step S3 lays the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film one by one into the battery string according to the stacking rules, thereby completing the automatic repair of the film-coated battery string.

[0170] Step S37 may be performed before step S38, that is, firstly bonding the lower half of the first replacement solder strip to the back side of the first side adjacent battery cell, and then bonding the upper half of the first replacement solder strip to the replacement battery cell.

[0171] Step S38 may be performed before step S37, that is, firstly bonding the upper half of the first replacement solder strip to the replacement battery cell, and then bonding the lower half of the first replacement solder strip to the back side of the adjacent battery cell on the first side.

[0172] Of course, in order to improve the repair efficiency, step S37 and step S38 can also be performed simultaneously, that is, the upper half and the lower half of the first replacement solder strip are bonded to the corresponding battery cell simultaneously.

[0173] In another optional implementation, step S3 includes:

[0174] Step S31, placing a second replacement back adhesive film at the position vacated after the second back adhesive film is removed.

[0175] Step S32, placing a replacement unit, the replacement unit comprising a first replacement solder strip, a second replacement solder strip, a first replacement front adhesive film, a first replacement back adhesive film and a replacement battery cell, wherein the upper half of the first replacement solder strip is bonded to the front side of the replacement battery cell via the first replacement front adhesive film, the lower half of the second replacement solder strip is bonded to the back side of the replacement battery cell via the first replacement back adhesive film, wherein the lower half of the first replacement solder strip is placed on the second replacement back adhesive film, the replacement battery cell is placed in the position vacated after the defective battery cell is removed, and the upper half of the second replacement solder strip is placed on the front side of the battery cell adjacent to the second side.

[0176] Step S33, place the second replacement front adhesive film on the upper half of the second replacement solder strip and heat the second replacement front adhesive film, so that the second replacement front adhesive film adheres the upper half of the second replacement solder strip to the second side adjacent battery cell; Step S34, control the first side adjacent battery cell to descend to the lower half of the first replacement solder strip, and heat the second replacement back adhesive film, so that the second replacement back adhesive film adheres the lower half of the first replacement solder strip to the back side of the first side adjacent battery cell.

[0177] The replacement unit consisting of the first replacement solder ribbon, the second replacement solder ribbon, the first replacement front adhesive film, the first replacement back adhesive film and the replacement battery cell is laid out as a whole and bonded into the battery string, which greatly improves the efficiency of the battery string repair.

[0178] Step S33 may be performed before step S34, that is, firstly bonding the upper half of the second replacement solder strip to the second adjacent battery cell, and then bonding the lower half of the first replacement solder strip to the back side of the first adjacent battery cell.

[0179] Step S34 may also be performed before step S33, that is, firstly bonding the lower half of the first replacement solder strip to the back side of the adjacent battery cell on the first side, and then bonding the upper half of the second replacement solder strip to the adjacent battery cell on the second side.

[0180] Of course, in order to improve the repair efficiency, step S34 and step S33 can also be performed simultaneously, that is, the upper half and the lower half of the first replacement solder strip are bonded to the corresponding battery cell simultaneously.

[0181] The battery string repair method in the embodiment of the present application can be implemented by the battery string repair equipment in any of the previous embodiments. For further implementation details, please refer to the relevant description of the battery string repair equipment in the previous embodiments, which will not be repeated here.

[0182] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A battery string repair device, characterized in that: The battery string repair device includes a repair platform, a pressing mechanism, a clamping mechanism, a removal mechanism, a film conveying mechanism, a solder strip conveying mechanism and a battery cell conveying mechanism, wherein: The repair platform is configured to carry a battery string to be repaired, and is configured to cooperate with the pressing mechanism and the clamping mechanism to disassemble a defective unit from the battery string, wherein the defective unit is a defective battery cell with a first welding strip, a second welding strip, a first back adhesive film, a first front adhesive film, a second back adhesive film and a second front adhesive film, wherein before disassembly, the defective battery cell is connected to a battery cell adjacent to the first side through the first welding strip, the upper half of the first welding strip is adhered to the front side of the defective battery cell through the first front adhesive film, the lower half of the first welding strip is adhered to the back side of the battery cell adjacent to the first side through the second back adhesive film, the defective battery cell is connected to a battery cell adjacent to the second side through the second welding strip, the lower half of the second welding strip is adhered to the back side of the defective battery cell through the first back adhesive film, and the upper half of the second welding strip is adhered to the front side of the battery cell adjacent to the second side through the second front adhesive film; The removal mechanism is configured to remove the defective unit from the rework platform; The film conveying mechanism, the solder strip conveying mechanism and the battery cell conveying mechanism are configured to place the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film according to stacking rules to the position vacated after the defective unit is removed, and are configured to cooperate with the rework platform and the pressing mechanism to adhere the first replacement back film, the second replacement solder strip, the replacement battery cell, the second replacement front film, the second replacement back film, the first replacement solder strip and the first replacement front film into the battery string.

2. The battery string repair device according to claim 1, characterized in that: The rework platform includes a first loading platform, a second loading platform, a third loading platform, a fourth loading platform, a fifth loading platform and a sixth loading platform which are sequentially arranged on a first side of the first loading platform and can be lifted relative to the first loading platform, and a seventh loading platform which is arranged on a second side of the first loading platform and can be lifted relative to the first loading platform; The pressing mechanism comprises a first pressing assembly, a second pressing assembly and a third pressing assembly which can be independently lifted and lowered, the first pressing assembly being arranged above the first bearing platform and the second bearing platform, the second pressing assembly being arranged above the third bearing platform, the fourth bearing platform and the fifth bearing platform, the third pressing assembly being arranged above the seventh bearing platform, wherein the end of the seventh bearing platform close to the first bearing platform is located outside the projection of the third pressing assembly on the horizontal plane; The clamping mechanism comprises a first clamping assembly and a second clamping assembly; The first carrier and the second carrier are configured to carry and absorb the defective battery cell, the third carrier, the fourth carrier and the fifth carrier are configured to carry and absorb the first side adjacent battery cell, the sixth carrier is configured to carry and absorb all battery cells located on the first side of the first side adjacent battery cell in the battery string, and the seventh carrier is configured to carry and absorb all battery cells located on the second side of the defective battery cell in the battery string; The first pressing assembly and the second pressing assembly are configured to descend synchronously to press the defective battery cell and the first side adjacent battery cell downwards respectively, and the second pressing assembly is further configured to heat the second back side adhesive film to soften the second back side adhesive film; The second pressing assembly is further configured to rise synchronously with the fourth loading platform, the fifth loading platform and the sixth loading platform, so that the second backside adhesive film and the lower half of the first welding strip located on the third loading platform are separated from the back side of the first side adjacent battery cell, and a first clamping gap is formed between the second backside adhesive film and the lower half of the first welding strip and the first side adjacent battery cell; The first clamping assembly is configured to clamp the first side adjacent battery cell from the upper and lower sides through the first clamping gap, and the first clamping assembly is further configured to continue to rise synchronously with the sixth carrier, and the fourth carrier and the fifth carrier are configured to drive the second back side adhesive film and the lower half of the first welding strip to descend and return to their positions, so that the second back side adhesive film and the lower half of the first welding strip are completely separated from the first side adjacent battery cell; The third pressing assembly is configured to press downward the second side adjacent battery cell, and heat the second front adhesive film to soften the second front adhesive film, and the third pressing assembly is further configured to descend synchronously with the seventh carrying platform, so that the second front adhesive film and the upper half of the second welding strip outside the projection of the third pressing assembly on the horizontal plane are separated from the front side of the second side adjacent battery cell, and a second clamping gap is formed between the second front adhesive film and the upper half of the second welding strip and the second side adjacent battery cell; The second clamping assembly is configured to clamp the second side adjacent battery cell from the upper and lower sides through the second clamping gap, the third pressing assembly is also configured to rise to separate from the second front side adhesive film, and the second clamping assembly is also configured to continue to descend synchronously with the seventh supporting platform, so that the second front side adhesive film and the upper half of the second welding strip are completely separated from the second side adjacent battery cell.

3. The battery string repair device according to claim 2, characterized in that: The first clamping assembly is rotatably connected to the second pressing assembly, and the upper and lower ends of the first clamping assembly are clamping ends; When the first clamping assembly rotates downward, the clamping end of the first clamping assembly located at the bottom is inserted into the first clamping gap to clamp the first side adjacent battery sheet from both sides; After the second back side adhesive film and the lower half of the first welding strip are completely separated from the first side adjacent battery cell, the first clamping assembly is configured to rotate upward to release the first side adjacent battery cell, and the second pressing assembly is further configured to absorb the first side adjacent battery cell when the first clamping assembly releases the first side adjacent battery cell so that the first side adjacent battery cell remains in a high position.

4. The battery string repair device according to claim 2, characterized in that: The second clamping assembly is rotatably connected to the seventh bearing platform, and the upper and lower ends of the second clamping assembly are clamping ends; When the second clamping assembly rotates upward, the clamping end of the second clamping assembly located at the upper side is inserted into the second clamping gap to clamp the second side adjacent battery sheet from both upper and lower sides; After the second back adhesive film and the upper half of the second welding strip are completely separated from the second side adjacent battery cell, the second clamping assembly is configured to rotate downward to release the second side adjacent battery cell; The seventh supporting platform is configured to drive all the battery cells located on the second side of the defective battery cell to rise and reset after the second clamping assembly releases the battery cell adjacent to the second side.

5. The battery string repair device according to claim 2, characterized in that: When the second pressing assembly heats the second back-side adhesive film to soften the second back-side adhesive film, the fourth carrying platform and the fifth carrying platform are configured to heat the second back-side adhesive film synchronously.

6. The battery string repair device according to claim 2, characterized in that: When the third pressing assembly heats the second front adhesive film to soften the second front adhesive film, the seventh carrying platform is configured to heat the second front adhesive film simultaneously.

7. The battery string repair device according to claim 2, characterized in that: The pressing mechanism further includes a fourth pressing assembly located between the first pressing assembly and the third pressing assembly, and an end of the seventh supporting platform close to the first supporting platform is within the projection range of the fourth pressing assembly on the horizontal plane.

8. The battery string repair device according to claim 2, characterized in that: After the removal mechanism removes the defective unit from the rework platform, the adhesive film transport mechanism is configured to place the first replacement back adhesive film on the first carrier platform and the second carrier platform, and the first carrier platform is configured to absorb the first replacement back adhesive film; The solder ribbon transport mechanism is configured to place the lower half of the second replacement solder ribbon on the first replacement back adhesive film, and place the upper half of the second replacement solder ribbon on the front side of the second side adjacent to the battery cell; The cell transport mechanism is configured to place the replacement cell on the lower half of the second replacement solder strip, the film transport mechanism is configured to place the second replacement front film on the upper half of the second replacement solder strip, and the third pressing assembly is configured to press the second replacement front film downwards; The first carrier and the second carrier are configured to heat the first replacement backside adhesive film so that the first replacement backside adhesive film pre-bonds the lower half of the second replacement solder ribbon to the backside of the replacement battery cell; The seventh carrier is configured to heat the second replacement front adhesive film so that the second replacement front adhesive film pre-bonds the upper half of the second replacement solder strip to the second side adjacent battery cell; The adhesive film transport mechanism is further configured to place the second replacement back adhesive film on the third loading platform, the fourth loading platform and the fifth loading platform, and the third loading platform and the fourth loading platform are configured to absorb the second replacement back adhesive film; The solder ribbon transport mechanism is further configured to place the upper half of the first replacement solder ribbon on the front side of the replacement battery cell, and place the lower half of the first replacement solder ribbon on the second replacement back side adhesive film; The second pressing assembly is further configured to descend synchronously with the sixth loading platform so that the first side adjacent battery sheet falls onto the lower half of the first replacement welding strip; The third carrier, the fourth carrier and the fifth carrier are further configured to heat the second replacement back adhesive film so that the second replacement back adhesive film pre-bonds the lower half of the first replacement solder strip to the back of the first side adjacent battery cell; The adhesive film transport mechanism is further configured to place the first replacement front adhesive film on the upper half of the first replacement solder strip, and the first pressing assembly is configured to press the first replacement front adhesive film; The first carrier platform and the second carrier platform are further configured to heat the first replacement front adhesive film so that the first replacement front adhesive film pre-bonds the upper half of the first replacement solder strip onto the replacement battery cell.

9. The battery string repair device according to claim 8, characterized in that: The solder strip handling mechanism includes a first clamp and a second clamp, and the first clamp and the second clamp are configured to cooperate to clamp the two ends of the second replacement solder strip or the two ends of the first replacement solder strip to carry and place the second replacement solder strip or the first replacement solder strip.

10. The battery string repair device according to claim 9, characterized in that: The solder ribbon conveying mechanism places the lower half of the second replacement solder ribbon on the first replacement back adhesive film, places the upper half of the second replacement solder ribbon on the front side of the second side adjacent to the battery cell, and then keeps the second replacement solder ribbon clamped; The second carrier is configured to descend relative to the first carrier so that the lower half of the second replacement solder strip and the end of the first replacement back film on the second carrier are suspended; The second clamping jaw clamping the end of the lower half of the second replacement solder strip is configured to be lowered below the table surface of the first supporting platform to avoid the replacement battery sheet; After the cell transport mechanism places the replacement cell on the lower half of the second replacement solder strip, the first carrier is configured to heat the first replacement back adhesive film on the first carrier so that the first replacement back adhesive film on the first carrier pre-bonds the lower half of the second replacement solder strip on the first carrier to the back of the replacement cell, and the second clamp releases the end of the lower half of the second replacement solder strip; The second supporting platform is also configured to rise and return to its original position, and to heat the end of the first replacement back side adhesive film, so that the end of the first replacement back side adhesive film pre-bonds the end of the lower half of the second replacement welding strip to the back side of the replacement battery cell.

11. The battery string repair device according to claim 9, characterized in that: The solder ribbon transport mechanism keeps clamping the first replacement solder ribbon after placing the lower half of the first replacement solder ribbon on the second replacement back adhesive film and placing the upper half of the first replacement solder ribbon on the replacement battery cell; The fifth loading platform is configured to descend relative to the fourth loading platform, so that the end of the lower half of the first replacement solder strip and the end of the second replacement back adhesive film on the fifth loading platform are suspended in the air; The second clamping jaw clamping the end of the lower half of the first replacement solder strip is configured to be lowered below the table surface of the fourth supporting platform to avoid the first side adjacent to the battery cell; After the first side adjacent battery cell falls onto the lower half of the first replacement solder strip, the third carrier platform and the fourth carrier platform are configured to heat the second replacement back adhesive film, so that the second replacement back adhesive film located on the third carrier platform and the fourth carrier platform pre-bonds the lower half of the first replacement solder strip located on the third carrier platform and the fourth carrier platform to the back side of the first side adjacent battery cell, and the second clamp is configured to release the end of the lower half of the first replacement solder strip; The fifth supporting platform is also configured to rise and return to its original position, and to heat the end of the second back side adhesive film so that the end of the second back side adhesive film pre-bonds the end of the lower half of the first replacement welding strip to the back side of the battery cell adjacent to the first side.

12. The battery string repair device according to claim 8, characterized in that: The third pressing assembly is further configured to cooperate with the seventh supporting platform to heat the second replacement front adhesive film so that the second replacement front adhesive film will bond the upper half of the pre-bonded second replacement solder strip to the second side adjacent battery cell.

13. The battery string repair device according to claim 8, characterized in that: The first pressing assembly is also configured to cooperate with the first supporting platform and the second supporting platform to heat the first replacement front adhesive film and the first replacement back adhesive film, so that the first replacement front adhesive film will complete the pre-bonding of the upper half of the first replacement solder strip to the front side of the replacement battery cell, and the first replacement back adhesive film will complete the pre-bonding of the lower half of the second replacement solder strip to the back side of the replacement battery cell.

14. The battery string repair device according to claim 8, characterized in that: The second pressing assembly is also configured to cooperate with the third carrier platform, the fourth carrier platform and the fifth carrier platform to heat the second replacement back side adhesive film so that the second replacement back side adhesive film will complete the pre-bonding of the lower half of the first replacement solder strip to the back side of the adjacent battery cell on the first side.

15. The battery string repair device according to claim 2, characterized in that: After the removal mechanism removes the defective unit from the rework platform, the adhesive film transport mechanism is configured to place the second replacement back adhesive film on the third carrier platform, the fourth carrier platform and the fifth carrier platform, The cell transport mechanism and the solder ribbon transport mechanism are configured to cooperate with a pickup replacement unit, the replacement unit comprising the first replacement solder ribbon, the second replacement solder ribbon, the first replacement front adhesive film, the first replacement back adhesive film and the replacement cell, wherein the upper half of the first replacement solder ribbon is bonded to the front of the replacement cell via the first replacement front adhesive film, and the lower half of the second replacement solder ribbon is bonded to the back of the replacement cell via the first replacement back adhesive film; The cell transport mechanism and the solder ribbon transport mechanism are further configured to place the replacement unit on the rework platform, wherein the lower half of the first replacement solder ribbon is placed on the second replacement back adhesive film, the replacement cell is placed on the first carrier platform and the second carrier platform, and the upper half of the second replacement solder ribbon is placed on the front side of the cell adjacent to the second side; The adhesive film transport mechanism is further configured to place the second replacement front adhesive film on the upper half of the second replacement welding ribbon, and the third pressing assembly is further configured to press the second replacement front adhesive film downwards; The seventh carrier is configured to heat the second replacement front adhesive film so that the second replacement front adhesive film pre-bonds the upper half of the second replacement solder strip to the second side adjacent battery cell; The second pressing assembly is further configured to descend synchronously with the sixth loading platform so that the first side adjacent battery sheet falls onto the lower half of the first replacement welding strip; The third carrier, the fourth carrier and the fifth carrier are also configured to heat the second replacement back adhesive film so that the second replacement back adhesive film pre-bonds the lower half of the first replacement solder strip to the back of the first side adjacent battery cell.

16. The battery string repair device according to claim 15, characterized in that: The solder strip handling mechanism comprises a first clamp and a second clamp. When picking up and placing the replacement unit, the first clamp is configured to clamp the end of the upper half of the second replacement solder strip, and the second clamp is configured to clamp the end of the lower half of the first replacement solder strip. After the cell transport mechanism and the solder strip transport mechanism place the replacement unit on the rework platform, the second clamping jaw keeps clamping the end of the lower half of the first replacement solder strip; The fifth loading platform is configured to descend relative to the fourth loading platform, so that the end of the lower half of the first replacement solder strip and the end of the second replacement back adhesive film on the fifth loading platform are suspended in the air; The second clamping jaw clamping the end of the lower half of the first replacement solder strip is configured to be lowered below the table surface of the fourth supporting platform to avoid the first side adjacent to the battery cell; After the first side adjacent battery cell falls onto the lower half of the first replacement solder strip, the third carrier platform and the fourth carrier platform are configured to heat the second replacement back adhesive film, so that the second replacement back adhesive film located on the third carrier platform and the fourth carrier platform pre-bonds the lower half of the first replacement solder strip located on the third carrier platform and the fourth carrier platform to the back side of the first side adjacent battery cell, and the second clamp is configured to release the end of the lower half of the first replacement solder strip; The fifth supporting platform is also configured to rise and return to its original position, and to heat the end of the second replacement back side adhesive film, so that the end of the second replacement back side adhesive film pre-bonds the end of the lower half of the first replacement welding strip to the back side of the adjacent battery cell on the first side.

17. The battery string repair device according to claim 15, characterized in that: The second pressing assembly is also configured to cooperate with the third carrier platform, the fourth carrier platform and the fifth carrier platform to heat the second replacement back side adhesive film so that the second replacement back side adhesive film will complete the pre-bonding of the lower half of the first replacement solder strip to the back side of the adjacent battery cell on the first side.

18. The battery string repair device according to claim 15, characterized in that: The third pressing assembly is further configured to cooperate with the seventh supporting platform to heat the second replacement front adhesive film so that the second replacement front adhesive film will bond the upper half of the pre-bonded second replacement solder strip to the second side adjacent battery cell.

Images