Series return device

Abstract

The present invention relates to a string return device, which is suitable for repairing a battery string. The string return device comprises a supporting platform and a fixing component, wherein the supporting platform is used to support the battery string; the fixing component is connected to the supporting platform, and the fixing component comprises a plurality of pairs, wherein the plurality of pairs of fixing components are spaced apart along a first direction of the supporting platform, and the distance between two fixing components in each pair of fixing components is adjustable, so as to clamp battery cells; or, a plurality of fixing components are spaced apart along a first direction, and the number of the fixing components corresponds to the number of battery cells, and the fixing components can be pressed onto the battery cells to fix the battery cells; wherein the first direction is along the arrangement direction of the battery cells in the battery string through the string return device with the above structural form to fix the battery string, thereby reducing the risk of the battery string being scratched due to movement during the repair process, so as to ensure the appearance quality of the battery string during the repair process.

Description

Technical Field

[0001] The invention relates to the field of solar energy technology, and in particular to a series return device. Background Art

[0002] The front of the back-contact solar cell is completely free of grid lines, so it has higher cell efficiency and a more beautiful appearance. Under existing technical conditions, in the process of preparing the battery string, it is inevitable that some solder joints will not meet the welding requirements, so unqualified battery strings need to be manually repaired. Due to the lack of grid line protection on the front, the front of the battery is in direct contact with the string return platform during repair and moves relative to each other, which makes it easy to scratch the front of the battery, which in turn has an adverse effect on the performance of the entire component. Summary of the invention

[0003] Based on this, it is necessary to provide a series return device to address the technical problem in the related art that the front side of the back-contact solar cell is easily scratched during the repair process.

[0004] A string return device, suitable for repairing a battery string, comprising:

[0005] A supporting platform, used for supporting the battery string;

[0006] A fixing component connected to the supporting platform,

[0007] Connected to the support platform, the fixing components include a plurality of pairs, the plurality of pairs of fixing components are arranged at intervals along the first direction of the support platform, and the distance between the two fixing components in each pair of the fixing components is adjustable, so as to clamp the battery cell; or, a plurality of the fixing components are arranged at intervals along the first direction, the number of the fixing components corresponds to the number of the battery cells, and the fixing components can be pressed on the battery cells to fix the battery cells;

[0008] The first direction is the arrangement direction of the battery cells in the battery string.

[0009] In one embodiment, the fixing components include a plurality of pairs, and the plurality of pairs of the fixing components are spaced apart along a first direction of the support platform, and the distance between the two fixing components in each pair of the fixing components is adjustable so as to clamp the battery cell; the support platform includes a first end and a second end oppositely arranged along a second direction, and the two fixing components in each pair of the fixing components are respectively arranged at the first end and the second end, and the second direction intersects with the first direction.

[0010] In one embodiment, at least one of the fixing components in each pair of the fixing components is movable toward the other fixing component.

[0011] In one embodiment, a first connecting rod is arranged at the first end and a second connecting rod is arranged at the second end, the first connecting rod and the second connecting rod both extend along the first direction, at least one of the two connecting rods can move relative to the support platform, the fixed parts arranged at the first end are connected to the first connecting rod, and the fixed parts arranged at the second end are connected to the second connecting rod, so that when the first connecting rod or the second connecting rod moves relative to the support platform, the fixed parts connected to the connecting rods are driven to move.

[0012] In one embodiment, the fixing member comprises:

[0013] A card block, wherein a connecting passage is provided on the card block, the first connecting rod or the second connecting rod passes through the connecting passage, and the card block can move relative to the connecting rod connected thereto;

[0014] A fixing piece is arranged on the clamping block, and the fixing piece can move relative to the clamping block and can abut against the connecting rod to limit the relative movement between the clamping block and the connecting rod.

[0015] In one embodiment, the fixing component further comprises:

[0016] The buffer is fixedly connected to a side of the clamping block facing the battery cell to protect the battery cell.

[0017] In one of the embodiments, the fixing component includes a card block, one of the support platform and the card block is provided with a guide member, the other of the support platform and the card block is provided with a guide slot, and the guide member cooperates with the guide slot to enable the card block to move toward the direction close to the battery cell.

[0018] In one of the embodiments, the fixing component further includes a positioning member, which is movably connected to the blocking block, and the positioning member can abut against the guide member or the groove wall of the guide groove to limit the movement of the blocking block relative to the supporting platform.

[0019] In one embodiment, a plurality of the fixing components are arranged at intervals along the first direction, the number of the fixing components corresponds to the number of the battery cells, and the fixing components can be pressed on the battery cells to fix the battery cells; each of the fixing components includes:

[0020] A pressing block is rotatably connected to the supporting platform and is used to be pressed onto the battery cell so as to fix the battery cell relative to the supporting platform.

[0021] In one of the embodiments, the fixing component further includes a connecting shaft, the connecting shaft is fixedly connected to any one side of the supporting platform in the first direction, and the pressing block is rotatably connected to the supporting platform via the connecting shaft.

[0022] Beneficial effects of the present invention:

[0023] The present invention provides a string return device, wherein a support platform is used to support a battery string, and a plurality of pairs of fixing components are arranged on the support platform at intervals along a first direction, and the distance between two fixing components in each pair of fixing components is adjustable, so that the two fixing components can clamp the battery cells, so that the battery cells are fixed relative to the support platform. Alternatively, a plurality of fixing components are arranged on the support platform at intervals along a first direction, and the number of the fixing components corresponds to the number of battery cells, and the battery cells are fixed by pressing the fixing components on the battery cells. As a result, when the battery string is repaired, the battery string is fixed, so that the battery cells are prevented from being scratched, so as to ensure the appearance quality of the battery string during the repair process. By using the string return device with the above structural form to fix the battery string, the risk of the battery string being scratched due to movement during the repair process is reduced, so as to ensure the appearance quality of the battery string during the repair process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of a series return device provided by an embodiment of the present invention;

[0025] FIG2 is a schematic diagram of the structure of a card block provided by an embodiment of the present invention;

[0026] FIG3 is a schematic structural diagram of a series return device provided by another embodiment of the present invention;

[0027] FIG4 is a schematic structural diagram of a connection portion between a card block and a support platform provided in one embodiment of the present invention;

[0028] FIG5 is a schematic structural diagram of a series return device provided by another embodiment of the present invention;

[0029] FIG. 6 is a schematic diagram of the structure of a pressing block provided by an embodiment of the present invention when pressing a battery cell.

[0030] Reference numerals:

[0031] Support platform 100; first end 110; second end 120; adjustment groove 130; positioning line 140; guide slide groove 150; fixing component 200; block 210; connecting channel 211; guide member 212; buffer member 220; pressing block 230; rotating shaft 240; first connecting rod 310; second connecting rod 320; battery cell 400; first direction X; second direction Y. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0038] 1 to 6 , an embodiment of the present invention provides a battery string rework device, which is suitable for repairing a battery string. The battery string rework device includes a support platform 100 and a fixing component 200. The fixing component 200 includes a plurality of pairs. The plurality of pairs of fixing components 200 are spaced apart along a first direction X of the support platform 100. The distance between two fixing components 200 in each pair of fixing components 200 is adjustable to clamp a battery cell 400. Alternatively, a plurality of fixing components 200 are spaced apart along the first direction X. The number of fixing components 200 corresponds to the number of battery cells 400. The fixing components 200 can be pressed onto the battery cells 400 to fix the battery cells 400. The first direction X is the arrangement direction of the battery cells 400 in the battery string.

[0039] The technical solution provides a string return device, wherein the support platform 100 is used to support the battery string, and multiple pairs of fixing components 200 are arranged at intervals along the first direction on the support platform 100, and the distance between the two fixing components 200 in each pair of fixing components 200 is adjustable, so that the two fixing components 200 can clamp the battery cell 400, so that the battery cell 400 is fixed relative to the support platform 100. Alternatively, multiple fixing components 200 are arranged at intervals along the first direction X on the support platform 100, and the number of the fixing components 200 corresponds to the number of the battery cells 400, and the fixing components 200 are pressed on the battery cell 400 to fix the battery cell 400. Therefore, when the battery string is repaired, the battery string is fixed, so that the battery cell 400 can be prevented from being scratched, so as to ensure the appearance quality of the battery string during the repair process. By using the string return device of the above structural form, the battery string is fixed, so as to reduce the risk of the battery string being scratched due to movement during the repair process, so as to ensure the appearance quality of the battery string during the repair process.

[0040] It should be understood that when the series return device provided in this embodiment is used for a back-contact battery, the front of the battery cell 400 faces the support platform 100, and the back of the battery cell 400, that is, the side provided with the welding strip, is provided on the side away from the support platform 100. In order to further reduce the risk of scratching the front of the battery cell 400, the surface of the support platform 100 is set to a smooth surface, thereby preventing the support platform 100 from scratching the battery cell 400. Specifically, the support platform 100 can be a flat plate structure supported by a metal or non-metal, wherein the top surface thereof is set to a smooth plane. Of course, a coating or a heat-resistant tape can also be provided on the smooth surface of the support platform 100, and the surface of the support platform 100 can also have an auxiliary heating function.

[0041] As shown in Figures 1, 3 and 5, further, a positioning line 140 can be set on the supporting surface of the supporting platform 100 to position the battery string when the battery string is placed on the supporting platform 100, thereby preventing the battery string from being positioned when the battery string is placed on the supporting platform 100 and reducing scratches on the battery cell 400 caused by a large displacement of the battery string when the battery string is fixed by the fixing component 200.

[0042] It should be noted that in this embodiment, the support platform 100 is set as a rectangular structure for illustration. Among them, the arrangement direction of the battery cells 400 in the battery string is along the length direction of the support platform 100. For the convenience of description, this direction can be defined as the first direction X. The width direction along the support platform 100 is defined as the second direction Y. The first direction X and the second direction Y are perpendicular to each other. In other embodiments, the first direction X and the second direction Y can be in an intersecting form, as long as the two fixing components 200 can avoid the battery string and can clamp the battery cells 400 on the battery string.

[0043] There is no limitation on the specific structure of the fixing component 200 and the fixing method of the battery string.

[0044] As shown in FIG. 1 and FIG. 2 , in one embodiment, the fixing components 200 include a plurality of pairs, and the plurality of pairs of fixing components 200 are arranged at intervals along the first direction X of the support platform 100, and the distance between the two fixing components 200 in each pair of fixing components 200 is adjustable to clamp the battery cell 400; the support platform 100 includes a first end 110 and a second end 120 arranged opposite to each other along the second direction, and the two fixing components 200 in each pair of fixing components 200 are arranged at the first end 110 and the second end 120, respectively. The first end 110 and the second end 120 of the support platform 100 are two ends along the second direction. The plurality of pairs of fixing components 200 are arranged at intervals along the first direction, and the number of pairs of fixing components 200 is at least greater than the number of battery cells 400 in the battery string, so that when the battery string is placed on the support platform 100, each battery cell 400 in the battery string can be fixed by a pair of fixing components 200. By setting the two fixing components 200 in each pair of fixing components 200 at the first end 110 and the second end 120 of the support platform 100, respectively, and the distance between the two fixing components 200 is adjustable, so that by adjusting the distance between the fixing components 200 set at both ends of the battery cell 400, the fixing components 200 can clamp the battery cell 400. In this way, the battery cell 400 is fixed relative to the support platform 100, so that when the battery string is repaired, the battery cell 400 cannot move relative to the support platform 100, thereby reducing the risk of the battery cell 400 being scratched. In one embodiment, at least one of each pair of fixing components 200 can move in a direction close to the other. It can be understood that there is no limitation on the adjustable manner of the distance between the two fixing components 200 in each pair of fixing components 200, which can be that in each pair of fixing components 200, one of the fixing components 200 is fixed and the other fixing component 200 can move relative to the fixed fixing component 200; or both fixing components 200 can move relative to each other.

[0045] As shown in Figures 1 and 2, specifically, the return device includes a first connecting rod 310 provided at the first end 110 and a second connecting rod 320 provided at the second end 120. The first connecting rod 310 and the second connecting rod 320 both extend along the first direction X, and at least one of the two connecting rods can move relative to the support platform 100. The fixed components provided at the first end 110 are connected to the first connecting rod 310, and the fixed components provided at the second end 120 are connected to the second connecting rod, so that when the first connecting rod 310 or the second connecting rod 320 moves relative to the support platform 100, the fixed components connected to the connecting rods are driven to move.

[0046] By setting connecting rods at both ends of the support platform 100 along the second direction, the fixing components 200 set at the first end 110 are all connected to the first connecting rod 310, and the fixing components 200 set at the second end 120 are all connected to the second connecting rod. And the two connecting rods are set in a form in which at least one can move relative to the support platform 100, so that the fixing component can be driven to move by moving the connecting rod, so that the indeterminate components connected to the connecting rod can move relative to the support platform at the same time. Therefore, when the battery string is placed on the support platform 100, the distance between the relatively set fixing components 200 is reduced by moving the connecting rod that can move relative to the support platform 100 to the direction close to the other connecting rod, so that the battery cell 400 is clamped. Such a setting can improve the fixing efficiency of the battery cell 400.

[0047] In another embodiment, the first connecting rod 310 and the second connecting rod 320 can be configured to be movable relative to the supporting platform 100 so that when the battery cell 400 needs to be fixed, the first connecting rod 310 and the second connecting rod 320 can be moved simultaneously.

[0048] It should be noted that there is no restriction on the movement mode of the connecting rod, and the connecting rod can be moved manually or electrically.

[0049] In one embodiment, the first connecting rod 310 disposed at the first end 110 is used as an example for description, and the structure of the second connecting rod disposed at the second end 120 is the same as that of the first connecting rod 310. At the first end 110 of the support platform 100, adjustment grooves 130 are disposed at both ends along the first direction, and both ends of the first connecting rod 310 pass through the two adjustment grooves 130 in the first direction respectively and are connected to the support platform 100. When it is necessary to adjust the position of the first connecting rod 310 relative to the support platform 100, a force can be applied to the first connecting rod 310 at the adjustment groove 130 to move the first connecting rod 310 relative to the support platform 100.

[0050] In addition, threads may be provided at both ends of the first connecting rod 310. When the connecting rod 310 is adjusted to a preset position, the two ends of the first connecting rod 310 may be pressed against the two ends of the support platform 100 along the first direction by nuts, thereby locking the first connecting rod 310. Of course, in other embodiments, locking buckles may be provided at both ends of the first connecting rod 310, and locking slots may be provided at both ends of the support platform 100. When the first connecting rod 310 is moved to a preset position, the locking buckles are engaged with the locking buckles to achieve relative fixation of the first connecting rod 310 and the support platform 100.

[0051] In some embodiments, the movement of the first connecting rod 310 can be driven by a motor. For example, a driving block can be set in the middle position of the first connecting rod 310, and a screw that can rotate relative to the support platform 100 can be set on the bottom surface of the support platform 100, the screw is fixedly connected to the motor shaft, and the screw is threadedly connected to the driving block. When the motor shaft drives the screw to rotate, the screw can drive the driving block to move relative to the support platform 100, thereby driving the first connecting rod 310 to move relative to the support platform 100 through the driving block. Of course, in other embodiments, the movement of the connecting rod can also be driven by a worm gear, a gear rack, etc.

[0052] In order to improve the adjustment flexibility of the fixing component 200, as shown in Figure 2, in one embodiment, the fixing component 200 includes a block 210 and a fixing member, and a connecting channel 211 is provided on the block 210, and the first connecting rod 310 or the second connecting rod 320 passes through the connecting channel 211, and the block 210 can move relative to the first connecting rod 310 or the second connecting rod 320; the fixing member is provided on the block 210, and the fixing member can move relative to the block 210, and can abut against the first connecting rod 310 or the second connecting rod 320 to limit the relative movement of the block 210 and the first connecting rod 310 or the second connecting rod 320.

[0053] By setting a connection channel on the card block 210, so that the connecting rod can pass through the connection channel 211, the card block 210 can move relative to the connecting rod while being connected to the connecting rod, so that the card blocks 210 on each fixed component 200 can adjust the distance independently, so that any card block 210 can move in the direction away from or close to the battery cell 400, thereby facilitating the removal and replacement of a certain battery cell 400 while other battery cells 400 are fixed relative to the support platform 100, and only the card block 210 corresponding to the battery cell 400 needs to be adjusted. In this way, the flexibility of the use of the serial return device is improved, and at the same time, when a certain battery cell 400 is removed and replaced, other battery cells 400 are fixed, so as to reduce the risk of other battery cells 400 being scratched due to movement.

[0054] By connecting a fixing piece to the block 210, the connecting rod and the block 210 are relatively locked by moving the fixing piece, so that when the connecting rod is moved, the block 210 can move with the connecting rod. In addition, when the block 210 is moved to a desired position, the block 210 and the connecting rod are locked by the fixing piece, and the block 210 can be kept in this position. For example, after the battery cell 400 to be replaced is removed and a new battery cell 400 is placed in this position, the block 210 can be moved to a position where the new battery cell 400 can be clamped, and the position can be locked by the fixing piece, so that the new battery cell 400 can be fixed relative to the support platform 100.

[0055] It should be noted that the width of the card block 210 is set to be less than or equal to the size of the battery cell 400 in contact with the card block 210 in the first direction. The distance between the two card blocks 210 in each pair of fixing components is slightly larger than the size of the battery cell 400 in the second direction. This arrangement makes it easier to place the battery cell between the two card blocks.

[0056] Of course, in other embodiments, the same pair of fixing components 200 can fix two battery cells 400 arranged side by side along the first direction X. In this case, the number of pairs of fixing components 200 is less than or equal to the number of battery cells 400 arranged along the first direction X. Specifically, the width of the card block 210 is set to be greater than the width of the battery cell 400 along the first direction X, so that a pair of card blocks 210 can clamp two battery cells 400 at the same time. As shown in Figures 1 and 3, in one of the embodiments, the fixing component 200 also includes a buffer 220, which is fixedly connected to the side of the card block 210 facing the battery cell 400 to protect the battery cell 400. A buffer 220 made of soft material is provided at the middle position where the block 210 contacts the battery string. The buffer 220 is fixed to one side of the block 210 to prevent the block 210 from crushing the battery cell 400 during movement. The thickness of the buffer 220 is between 1 and 10 mm. The distance between the buffers 220 on the two blocks 210 in each pair of fixing components is less than or equal to the size of the battery cell 400 in the second direction, thereby ensuring that the block 210 has a good fixing effect on the battery string. The buffer 220 can be a rubber part or a silicone part.

[0057] As shown in FIG. 3 and FIG. 4 , in one embodiment, the fixing component 200 includes a block 210, one of the supporting platform 100 and the block 210 is provided with a guide member 212, and the other of the supporting platform 100 and the block 210 is provided with a guide slot 150, and the guide member 212 cooperates with the guide slot 150 to guide the block 210 so that the block 210 can move toward the direction close to the battery cell 400. In this way, by moving the block 210 along the guiding direction of the guide slot 150 and the guide member 212, the distance between the two fixing components 200 can be adjusted, thereby fixing the battery cell 400.

[0058] Specifically, a guide slot 150 is provided on the support platform 100, and the guide slot 150 may be a dovetail slot; a guide member 212 matching the shape of the guide slot is provided on the clamping block 210, and the dovetail portion of the guide member 212 and the dovetail portion of the guide slot 150 abut against each other to limit the guide member 212 from being separated from the guide slot 150. By moving the clamping slot along the guide slot 150, the movement of the clamping block 210 can be achieved.

[0059] In one embodiment, the fixing member 200 further includes a positioning member, which is movably connected to the block 210, and the positioning member can abut against the guide member 212 or the groove wall of the guide slot 150 to limit the movement of the block 210 relative to the support platform 100. By providing the positioning member, the block 210 is locked to ensure the reliability of fixing the battery cell 400. In this embodiment, a buffer 220 is also provided on the side where the block 210 abuts against the battery cell 400, and the specific situation of the buffer 220 can refer to the above description.

[0060] As shown in FIG. 5 and FIG. 6 , in one embodiment, a plurality of fixing components 200 are arranged at intervals along the first direction X, the number of the fixing components 200 corresponds to the number of the battery cells 400, and the fixing components 200 can be pressed on the battery cells 400 to fix the battery cells 400; each fixing component 200 includes a pressing block 230, which is rotatably connected to the support platform 100, and the pressing block 230 can be pressed on the battery cell 400 to fix the battery cell 400 relative to the support platform 100. The fixing component 200 also includes a connecting shaft, which is fixedly connected to any side of the support platform 100 along the arrangement direction of the battery cells 400, and the pressing block 230 is rotatably connected to the support platform 100 through the connecting shaft.

[0061] The pressing block 230 is rotatably connected to the support platform 100 so that pressure is applied directly above the battery string, and the battery string is fixed on the support platform 100. The specific pressing is achieved by the pressing block 230 above the battery cell 400. The pressing block 230 acts on the back of each battery cell 400, and each pressing block 230 is independent of each other. The length of the pressing block 230 is greater than or equal to the length of the battery cell 400 in the second direction, and the width of the pressing block 230 is less than or equal to the width of the battery cell 400 along the first direction. Among them, one end of the pressing block 230 is connected to the support platform 100 through the rotating shaft 240, and the pressing block 230 can rotate around the rotating shaft 240. The pressing of the battery string by the pressing block 230 can be the effect of its own gravity, or it can be electromagnetic adsorption between the platform, or the end of the pressing block 230 away from the rotating shaft 240 can be fixed to the support platform 100 by mechanical connection to achieve the fixation of the pressing block 230. The number of the pressing blocks 230 is equal to the number of the battery cells 400 on the battery string, and the independent pressing blocks 230 can realize the repair and replacement operations on any battery cell 400.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A battery string repair device, suitable for repairing battery strings, characterized in that: The return device comprises: A supporting platform, used for supporting the battery string; A fixing component connected to the support platform, the fixing component comprising a plurality of pairs, the plurality of pairs of fixing components being spaced apart along a first direction of the support platform, and the distance between two fixing components in each pair of the fixing components being adjustable, so as to clamp the battery sheet; Wherein, the first direction is the arrangement direction of the battery cells in the battery string; The support platform comprises a first end and a second end which are arranged opposite to each other along a second direction, two of the fixing components in each pair of the fixing components are arranged at the first end and the second end respectively, and the second direction intersects with the first direction; At least one of the fixing components in each pair of the fixing components is movable toward the other fixing component; The return device comprises a first connecting rod provided at the first end and a second connecting rod provided at the second end, the first connecting rod and the second connecting rod both extend along the first direction, at least one of the two connecting rods can move relative to the support platform, the fixing components provided at the first end are connected to the first connecting rod, and the fixing components provided at the second end are connected to the second connecting rod, so that when the first connecting rod or the second connecting rod moves relative to the support platform, the fixing components connected to the connecting rods are driven to move; The fixing member comprises: A card block, wherein a connecting passage is provided on the card block, the first connecting rod or the second connecting rod passes through the connecting passage, and the card block can move relative to the connecting rod connected thereto; A fixing member is arranged on the clamping block, the fixing member can move relative to the clamping block, and can abut against the first connecting rod or the second connecting rod to limit the relative movement of the clamping block and the first connecting rod or the second connecting rod.

2. The return device according to claim 1, characterized in that: The fixing member also includes: The buffer is fixedly connected to a side of the clamping block facing the battery cell to protect the battery cell.

3. The return device according to claim 2, characterized in that: The fixing component includes a card block, one of the support platform and the card block is provided with a guide member, the other of the support platform and the card block is provided with a guide slot, and the guide member cooperates with the guide slot to enable the card block to move toward the direction close to the battery cell.

4. The return device according to claim 3, characterized in that: The fixing component also includes a positioning member, which is movably connected to the clamping block. The positioning member can abut against the guide member or the groove wall of the guide slide groove to limit the movement of the clamping block relative to the support platform.

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