Auxiliary tool for repairing battery string and repairing equipment

Abstract

The utility model relates to an auxiliary tool and repairing equipment for repairing a battery string, the repairing equipment comprises a workbench, auxiliary tools and a transfer device, the transfer device is used for transferring the battery string and placing the battery string on the workbench, the auxiliary tools are arranged on the two sides of the workbench and comprise supporting parts and separation parts, the supporting parts are used for supporting the battery string, and the separation parts are used for separating the battery string from the workbench. The separation part is vertically arranged on the supporting part and is used for being inserted between two adjacent battery pieces of the battery string, so that the two adjacent battery pieces in the battery string can be separated, and therefore, when the battery pieces of the battery string are cracked or a welding strip for connecting the two adjacent battery pieces is broken and needs to be repaired, the automation degree of repairing the battery pieces can be improved, and the repair efficiency of the battery pieces is improved. The distance between two adjacent battery pieces in a small-distance solar battery piece product is controlled, and the two adjacent battery pieces are prevented from being combined, so that the repair precision of the battery piece product is ensured, and the repair efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation technology, and in particular to an auxiliary tooling and repair equipment for repairing a battery string. Background Art

[0002] With the increasing awareness of environmental protection and the implementation of emission restrictions on fossil fuel combustion gases in many countries, renewable energy represented by solar power generation has developed rapidly. Especially with the rapid development of the photovoltaic industry in my country in recent years, solar power generation has become more and more well-known to the public. In the context of the depletion of traditional energy, solar power generation has become more and more popular. Photovoltaic modules are a new type of product with solar cells that can directly convert the sun's light energy into electrical energy.

[0003] At present, in order to make solar cells have higher power, so as to improve the power generation efficiency of photovoltaic modules, and to save costs and meet the size of standard parts such as frames and backplanes, people usually achieve the above purpose by reducing the spacing between adjacent cells without changing the overall size of solar cells. Therefore, a large number of small-pitch solar cell products have appeared on the market. Because small-pitch solar cell products have higher power and their cost is not higher than that of ordinary solar cell products, they are becoming more and more popular in the market. However, when small-pitch solar cell products need to be repaired due to hidden cracks in the cells or disconnected solder strips, it is easy to merge the cells because the spacing between adjacent cells is too small, resulting in the difficulty in ensuring the spacing between adjacent cells when repairing the solar cell, which will cause great difficulties in repairing the battery, resulting in a long repair time and difficult to control precision. Utility Model Content

[0004] Based on this, it is necessary to provide an auxiliary tooling and repair equipment for repairing battery strings to address the problem that the existing technology is difficult to control the spacing between adjacent battery cells when repairing small-pitch photovoltaic module battery strings, resulting in a long repair time and difficult to control precision.

[0005] According to one aspect of the present application, there is provided an auxiliary tool for repairing a battery string, comprising:

[0006] A support portion, used to support a battery string, wherein the battery string includes a plurality of battery cells arranged along a first direction;

[0007] A separator is vertically arranged on one side of the support portion in a second direction, the second direction being perpendicular to the first direction, and the separator is used to be inserted between two adjacent battery cells of the battery string so that the two adjacent battery cells can be separated in the first direction.

[0008] In one embodiment, along the second direction and away from the supporting portion, the size of the partition portion in the first direction gradually decreases.

[0009] In one embodiment, a dimension t of the partition in the first direction is 0.3 mm to 1.3 mm, and / or a dimension h of the partition in the second direction is 1 mm to 11 mm.

[0010] In one embodiment, a dimension M of the support portion in the first direction is 60 mm to 62 mm; a dimension N of the support portion in a third direction perpendicular to both the first direction and the second direction is 49 mm to 51 mm.

[0011] In one embodiment, in the first direction, the distances from the partition to the two opposite ends of the support portion are equal.

[0012] In one embodiment, the auxiliary tooling is made of film material.

[0013] According to another aspect of the present application, there is provided a repair device for repairing a battery string, comprising:

[0014] The workbench is provided with auxiliary tooling as described in any of the above schemes on both sides of the third direction;

[0015] The transfer device has a transfer element that can move along the second direction and a third direction, wherein the third direction is perpendicular to the first direction and the second direction at the same time, and the transfer element is used to transfer the battery string and place the battery string on the workbench.

[0016] In one embodiment, the rework equipment further comprises:

[0017] A spacing measuring device, used to measure the spacing between two adjacent battery cells;

[0018] An air blowing device, arranged on the upper side of the workbench in the second direction;

[0019] A control module is communicatively connected to the spacing measuring device and the blowing device. The control module is used to control the blowing device to blow air toward the battery string when the spacing between two adjacent battery cells in the battery string is less than a preset value, so that the spacing between two adjacent battery cells can be greater than the preset value.

[0020] In one embodiment, the spacing measuring device includes a transmitter and a receiver respectively arranged on opposite sides of the workbench along the second direction, the transmitter is used to emit light, the workbench is configured to allow the light emitted by the transmitter to pass through, and the receiver is used to receive the light and sense the intensity of the light to determine the spacing between two adjacent battery cells of the battery string.

[0021] In one embodiment, the rework device further comprises a driving member connected to the auxiliary tooling, and the driving member is communicatively connected to the control module;

[0022] When the distance between two adjacent battery sheets is greater than the preset value, the control module can control the driving member to drive the auxiliary tooling to move along the second direction so that the partition of the auxiliary tooling is inserted between the two adjacent battery sheets.

[0023] The above-mentioned auxiliary tooling and rework equipment for rework of battery strings are achieved by arranging the auxiliary tooling on a workbench, arranging a support part for supporting the battery string and a partition part vertically arranged on one side of the support part on the auxiliary tooling, and arranging a transfer device with a transfer element so that the transfer element can automatically transfer the battery string and place the battery string on the workbench. When the battery cell of the battery string is cracked or the welding strip connecting two adjacent battery cells is broken and needs to be reworked, the partition part of the auxiliary tooling can be inserted between the two adjacent battery cells so that the two adjacent battery cells can be separated in a first direction, thereby improving the degree of automation of battery cell rework, controlling the spacing between two adjacent battery cells in a small-pitch solar cell product, and preventing the two adjacent battery cells from being paralleled, thereby ensuring the rework accuracy of the battery cell product and improving the rework efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a front view of a rework device provided in one embodiment of the present application.

[0025] Figure 2 A top view of a rework device provided in one embodiment of the present application.

[0026] Figure 3 This is an enlarged schematic diagram of area A in Figure 1.

[0027] FIG. 4 is a side view of a rework device provided in an embodiment of the present application.

[0028] Figure 5 A schematic diagram of an auxiliary tooling provided in an embodiment of the present application for separating two adjacent battery cells in a battery string.

[0029] Figure 6 This is an axial side view of the auxiliary tooling provided in one embodiment of the present application.

[0030] Figure 7 A front view of an auxiliary tooling provided in one embodiment of the present application.

[0031] Figure 8 A front view of an auxiliary tooling provided in another embodiment of the present application.

[0032] Description of reference numerals:

[0033] 10. Rework equipment; 100. Workbench; 200. Auxiliary tooling; 210. Support part; 220. Partition part; 300. Transfer device; 310. Transfer assembly; 311. Base; 312. First drive member; 313. Transfer element; 400. Spacing measuring device; 410. Transmitter; 420. Receiver; 500. Blowing device; 60. Battery string; 61. Battery cell; 62. Solder ribbon. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application 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 application. However, the present application 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 application, so the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 this application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0039] It should be noted that if 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. If 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. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0040] As described in the background technology, with the rapid development of the photovoltaic industry in my country in recent years, solar power generation has become more and more well-known to the public. In the context of the depletion of traditional energy, solar power generation has become more and more popular. In this context, people have thought of using new solar cells to directly convert the sun's light energy into electrical energy. Usually, in order to prevent the solar cells from being damaged and to facilitate transportation, the solar cells are usually installed in a frame and sealed with a stainless steel glass back plate to form a photovoltaic module that can convert the sun's light energy into electrical energy. For example, the common size of photovoltaic modules on the market is 2272mm in length × 1128mm in width × 2mm in thickness, or 2278mm in length × 1134mm in width × 2mm in thickness.

[0041] However, since the frame and glass backplane are standard parts, their sizes are not easy to change. In order to make the solar cell have higher power, improve the power generation efficiency of the photovoltaic module, and save costs, and meet the size of standard parts such as the frame and backplane, people usually reduce the spacing between adjacent cells without changing the overall size of the solar cell. To achieve the above purpose, a large number of small-pitch solar cell products have appeared on the market. For example, the size of a single cell is usually 182mm in length × 91mm in width. By reducing the spacing between adjacent cells, the length or width of a single cell can be increased by 2mm~4mm, and the spacing between two adjacent cells is reduced to 0.3mm~1.3mm, thereby increasing the power generation of the photovoltaic module without changing the overall size of the photovoltaic module. In this case, when the solar cell product needs to be repaired due to hidden cracks in the cell or disconnection of the welding ribbon, it is easy to merge the cells because the spacing between adjacent cells is too small, resulting in the difficulty in ensuring the spacing between adjacent cells when repairing the solar cell, which will cause great difficulties in repairing the battery, resulting in a long repair time and difficult to control precision.

[0042] To this end, the present application provides an auxiliary tooling for repairing a battery string and a repair device including the auxiliary tooling to solve the problem that it is difficult to control the spacing between adjacent solar cells when repairing solar cell products, resulting in a long repair time and difficult to control precision.

[0043] The following uses a battery string used in a photovoltaic module as an example to explain the structure of the auxiliary tooling and repair equipment used for repairing the battery string. It can be understood that in other embodiments, the auxiliary tooling and the repair equipment including the auxiliary tooling of the present application are not limited to being used when repairing the battery string of a photovoltaic module, but can also be used when repairing the battery string in any product.

[0044] 1 to 4, which are schematic diagrams of a repair device 10 for repairing a battery string 60 in one embodiment. Figure 3 As shown, the rework equipment 10 of this embodiment includes a workbench 100, an auxiliary tool 200, a transfer device 300 and a rework tool (not shown in the figure), wherein the battery string 60 includes a plurality of battery cells 61 arranged along a first direction (the X direction shown in the figure), the auxiliary tool 200 is arranged on both sides of the workbench 100 in a third direction (the Z direction shown in the figure, which is perpendicular to the X direction), and the workbench 100 is used to carry the battery string 60; Figure 5As shown, the auxiliary tooling 200 is used to separate the distance between two adjacent battery cells 61 when repairing the battery string 60, so as to control the distance between two adjacent battery cells 61 and ensure the repair accuracy and repair efficiency of the battery string 60. The transfer device 300 is used to transfer the battery string 60 and place the battery string 60 on the workbench 100; the repair tool is set on the workbench 100 and is used to repair the battery cell 61. For example, the repair tool can be a welding gun used to re-weld the welding strip 62 together and re-weld the hidden cracked battery cell 61, etc., and the specific details are not limited.

[0045] In one embodiment, the transfer device 300 includes two transfer assemblies 310 spaced apart and symmetrically arranged along the first direction, and the two transfer assemblies 310 are respectively arranged at opposite ends of the workbench 100 in the first direction, and each transfer assembly 310 includes a base 311, a first driving member 312, a second driving member (not shown in the figure) and a transfer element 313, wherein the transfer element 313 is connected to the output end of the first driving member 312, the first driving member 312 is connected to the transfer element 313, and the output end of the second driving member is connected to the base 311. 1, the second driving member can drive the base 311, the first driving member 312 and the transfer element 313 to move along the third direction, and the first driving member 312 can drive the transfer element 313 to move along the second direction (the Y direction shown in the figure, which is perpendicular to the X direction and the Z direction at the same time), so that the two transfer elements 313 can respectively support the ends of the battery string 60 in the first direction to drive the battery string 60 to move above the workbench 100 along the third direction, and support the battery string 60 to descend to place the battery string 60 on the workbench 100. When the distance between two adjacent battery cells 61 of the battery string 60 to be repaired is too small, the auxiliary tooling 200 can separate the two adjacent battery cells 61 of the battery string 60 placed on the workbench 100, so as to achieve the purpose of controlling the distance between the two adjacent battery cells 61 during repair, and prevent the two adjacent battery cells 61 from being paralleled to affect the repair efficiency and repair accuracy.

[0046] See also Figure 6 and Figure 7 , is a structural schematic diagram of an auxiliary tooling 200 provided in an embodiment of the present application. The auxiliary tooling 200 provided in the embodiment of the present application is roughly in a "T"-shaped structure, including a support portion 210 and a separator 220, wherein the separator 220 is vertically arranged on one side of the support portion 210 in the second direction, the support portion 210 is used to support the battery string 60, and the separator 220 is used to be inserted between two adjacent battery cells 61 of the battery string 60 so that the two adjacent battery cells 61 can be separated in the first direction.

[0047] In some embodiments, the spacing between two adjacent cells 61 in the solar cell 61 product is between 0.3 mm and 1.3 mm, so correspondingly, the dimension t of the separator 220 in the first direction is also 0.3 mm to 1.3 mm, depending on the specific spacing between the two adjacent cells 61. For example, in one embodiment, when the battery string 60 is intact, the spacing between the two adjacent cells 61 is 0.4 mm. When the battery string 60 needs to be repaired due to hidden cracks in the cell 61 or the breakage of the welding strip 62, the dimension t of the separator 220 in the first direction is also 0.4 mm. In this way, it can be ensured that when the battery string 60 is repaired, the spacing between the two adjacent cells 61 during the repair can always be maintained at 0.4 mm, thereby preventing the adjacent two cells 61 from being paralleled and affecting the quality of the solar cell product after the repair is completed.

[0048] Furthermore, the dimension h of the partition 220 in the second direction is preferably 1 mm to 11 mm. This is because the dimension should not be too large. If the dimension is too large, it is easy for the battery string 60 to come into contact with the partition 220 when the transfer device 300 carries the battery string 60 and moves, thereby affecting the placement of the battery string 60 on the transfer device 300 or on the workbench 100.

[0049] Specifically with regard to the size of the support portion 210, preferably, the size M in the first direction is 60mm~62mm; the size N of the support portion 210 in the third direction is 49mm~51mm. This is because the size of the support portion 210 should not be too large or too small. If it is too small, the battery string 60 will not be effectively supported, and if it is too large, greater friction will be generated between the battery string 60 and the support portion 210, causing damage to the battery string 60. Selecting the above size range can not only effectively support the battery string 60, but also prevent greater friction between the battery string 60 and the support portion 210 from damaging the battery string 60.

[0050] In order to provide balanced support for two adjacent battery cells 61, in a preferred embodiment, in the first direction, the distances from the separator 220 to the two opposite ends of the support portion 210 are equal. In this way, the contact area between each of the two adjacent battery cells 61 and the support portion 210 is the same, so that the two adjacent battery cells 61 can receive the same support force, thereby ensuring the repair accuracy of the battery string 60.

[0051] It is understandable that before repairing the battery string 60, if the spacing between two adjacent battery cells 61 is too small, the battery string 60 or the auxiliary tooling 200 can be manually moved so that the partition 220 of the auxiliary tooling 200 is inserted into the gap formed by the two adjacent battery cells 61, or the auxiliary tooling 200 can be connected to a driving part such as a cylinder or a hydraulic cylinder, and the auxiliary tooling 200 can be moved by automatic control so that the partition 220 of the auxiliary tooling 200 is inserted into the gap between the two adjacent battery cells 61, without special limitation.

[0052] Furthermore, the auxiliary tooling 200 is made of film material, which is actually the material used to make camera films. It is made of PC / PP / PET / PVC and other materials, and has the characteristics of moderate hardness and softness. It is neither too hard like metal materials, thereby avoiding scratching the battery cells 61, nor too low in hardness like soft rubber materials, thereby ensuring that the partition 220 can be more easily inserted between two adjacent battery cells 61.

[0053] Based on the above embodiment, as a further improvement, see Figure 8 , along the second direction and away from the support portion 210, the size of the partition portion 220 in the first direction gradually decreases, that is, Figure 8 As shown in the figure, the thickness of the separator 220 gradually decreases from bottom to top. In this way, when the separator 220 of the auxiliary tooling 200 is inserted into the gap between adjacent battery cells 61, if the initial spacing between two adjacent battery cells 61 is small, the spacing between the two adjacent battery cells 61 can be gradually increased to reach the required spacing by inserting the end of the separator 220 with a smaller thickness between the two adjacent battery cells 61 first, and then gradually approaching the supporting portion 210 to the battery cell 61, so that the spacing between the two adjacent battery cells 61 can be more easily controlled when the initial spacing between the two adjacent battery cells 61 is small.

[0054] In order to further improve the automation level of the rework equipment 10, please continue to refer to Figures 1 to 4. In some embodiments, the workbench 100 is provided with multiple spacing measuring devices 400 and multiple blowing devices 500 on both sides of the third direction, respectively. The multiple spacing measuring devices 400 and the multiple blowing devices 500 are respectively arranged at intervals along the first direction, and the multiple blowing devices 500 are also located on the upper side of the workbench 100 in the second direction. At the same time, the rework equipment 10 also includes a control module, and each spacing measuring device 400 and each blowing device 500 are respectively communicated and connected to the control module. The spacing measuring device 400 is used to measure the spacing between any two adjacent battery cells 61. When the spacing between the two adjacent battery cells 61 is less than the preset value, the control module can control the blowing device 500 to blow air to the battery string 60 so that the spacing between the two adjacent battery cells 61 can be greater than the preset value.

[0055] In this way, through the above-mentioned settings, the rework equipment 10 can automatically detect the distance between two adjacent battery cells 61 of the battery string 60, and can use the blowing device 500 to automatically adjust the distance when the distance is less than the preset value according to the detection result, so that the distance is greater than the preset value, thereby achieving the effect of automatic control and improving the degree of automation of the rework equipment 10.

[0056] Specifically, please continue to refer to Figures 1 to 4. The spacing measuring device 400 includes a transmitter 410 and a receiver 420 respectively arranged on opposite sides of the workbench 100 along the second direction. The transmitter 410 is used to emit light. The workbench 100 is configured to enable the optical transmission emitted by the transmitter 410. The receiver 420 is used to receive light and sense the intensity of light to determine the spacing between two adjacent battery cells 61 of the battery string 60. Specifically, when the light intensity sensed by the receiver 420 is less than a certain preset value, it indicates that the spacing between the two adjacent battery cells 61 is too small, and it is necessary to start the blowing device 500 to adjust the spacing; when the light intensity sensed by the receiver 420 is greater than a certain preset value, it indicates that the spacing between the two adjacent battery cells 61 is greater than the preset value of the spacing, and it is not necessary to start the blowing device 500 to adjust the spacing. Exemplarily, in some embodiments, the workbench 100 can allow light to pass through the workbench 100 by selecting a transparent material or opening a hole, which is not specifically limited.

[0057] In addition, based on the embodiment in which the auxiliary tooling 200 is driven by a driving member to be inserted between two adjacent battery cells 61, as an improved implementation mode, the driving member can also be communicatively connected to the control module. Specifically, the workbench 100 is respectively provided with lifting platforms (not shown in the figure) on two opposite sides of the third direction, and each lifting platform is provided with an auxiliary tooling 200, and each lifting platform is connected to the output end of the driving member, so that the auxiliary tooling 200 is connected to the driving member through the lifting platform. When the spacing between two adjacent battery cells 61 is greater than a preset value, the control module can control the driving member to drive the lifting platform and the auxiliary tooling 200 to move along the second direction together, so that the partition 220 of the auxiliary tooling 200 is inserted between the two adjacent battery cells 61. When the distance between two adjacent battery cells 61 is less than the preset value, the blowing device 500 first blows air to the battery string 60, so that the distance between the two adjacent battery cells 61 is greater than the preset value, and then the control module controls the driving member to drive the lifting platform and the auxiliary tooling 200 to move along the second direction so that the partition 220 of the auxiliary tooling 200 is inserted between the two adjacent battery cells 61, thereby realizing the automated operation of detection, blowing, and spacing control. Furthermore, the repair tool can also be set on a manipulator, and the manipulator is also communicatively connected to the control module, so as to realize automatic repair on the basis of automatic detection, automatic blowing, and automatic spacing control, so that the rework equipment 10 provided in this application can be further fully automated.

[0058] The following is combined with Figures 1 to Figure 8 , the process of repairing the battery string 60 by the repair equipment 10 provided in this application is introduced:

[0059] Before repairing the battery string 60, the spacing between two adjacent battery cells 61 is first detected by using the spacing measuring device 400. When the spacing between two adjacent battery cells 61 is greater than a preset value, the auxiliary tooling 200 can be inserted between the two adjacent battery cells 61, so that the gap formed between the two adjacent battery cells 61 is provided with auxiliary tooling 200 at both opposite ends of the third direction, so that the partition 220 of the auxiliary tooling 200 is stuck between the two adjacent battery cells 61 to ensure that there is no problem of battery paralleling; otherwise, the battery string 60 is blown by using the blowing device 500 to make the spacing between two adjacent battery cells 61 greater than the preset value before the auxiliary tooling 200 is inserted.

[0060] Then, the broken welding strip 62 in the battery string 60 is re-welded and fixed by using a repair tool. Figure 5As shown, first, the second and the penultimate welding strips 62 in the third direction are welded and fixed to ensure that the two adjacent battery cells 61 can maintain a certain distance after the auxiliary tooling 200 is pulled out, and then the auxiliary tool is pulled out, and the remaining broken welding strips 62 are welded and fixed in turn to finally complete the repair of the battery string 60, thereby ensuring that the two adjacent battery cells 61 will not be paralleled during the entire process.

[0061] It can be seen that the repair equipment for repairing battery strings provided by the present application has a high degree of automation, can realize fully automated operations of spacing detection, spacing adjustment, spacing control and repair, and the auxiliary tooling structure is simple, and has an outstanding effect on controlling the spacing between two adjacent battery cells in small-pitch solar cell products, and can prevent two adjacent battery cells from being joined together, thereby ensuring the repair accuracy of the battery cell product and improving the efficiency of the repair.

[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-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An auxiliary tool for repairing battery strings, It is characterized in that include: A support portion, used to support a battery string, wherein the battery string includes a plurality of battery cells arranged along a first direction; A separator is vertically arranged on one side of the support portion in a second direction, the second direction being perpendicular to the first direction, and the separator is used to be inserted between two adjacent battery cells of the battery string so that the two adjacent battery cells can be separated in the first direction.

2. The auxiliary tooling according to claim 1, It is characterized in that Along the second direction and away from the support portion, a size of the partition portion in the first direction gradually decreases.

3. The auxiliary tooling according to claim 1, It is characterized in that A dimension t of the partition in the first direction is 0.3 mm to 1.3 mm, and / or a dimension h of the partition in the second direction is 1 mm to 11 mm.

4. The auxiliary tooling according to claim 1, It is characterized in that A dimension M of the support portion in the first direction is 60 mm to 62 mm; a dimension N of the support portion in a third direction perpendicular to both the first direction and the second direction is 49 mm to 51 mm.

5. The auxiliary tooling according to claim 4, It is characterized in that In the first direction, the distances from the partition to the two opposite ends of the support portion are equal.

6. The auxiliary tooling according to claim 1, It is characterized in that The auxiliary tooling is made of film material.

7. A repair device for repairing a battery string, It is characterized in that include: A workbench, with auxiliary tooling as described in any one of claims 1 to 6 respectively provided on both sides of the third direction; The transfer device has a transfer element that can move along the second direction and a third direction, wherein the third direction is perpendicular to the first direction and the second direction at the same time, and the transfer element is used to transfer the battery string and place the battery string on the workbench.

8. The rework device according to claim 7, It is characterized in that The rework equipment also includes: A spacing measuring device, used to measure the spacing between two adjacent battery cells; An air blowing device, arranged on the upper side of the workbench in the second direction; A control module is communicatively connected to the spacing measuring device and the blowing device. The control module is used to control the blowing device to blow air toward the battery string when the spacing between two adjacent battery cells in the battery string is less than a preset value, so that the spacing between two adjacent battery cells can be greater than the preset value.

9. The rework device according to claim 8, It is characterized in that The spacing measuring device includes a transmitter and a receiver respectively arranged on opposite sides of the workbench along the second direction, the transmitter is used to emit light, the workbench is configured to allow the light emitted by the transmitter to pass through, and the receiver is used to receive the light and sense the intensity of the light to determine the spacing between two adjacent battery cells of the battery string.

10. The rework device according to claim 8, It is characterized in that The rework equipment further comprises a driving member connected to the auxiliary tooling, wherein the driving member is communicatively connected to the control module; When the distance between two adjacent battery sheets is greater than the preset value, the control module can control the driving member to drive the auxiliary tooling to move along the second direction so that the partition of the auxiliary tooling is inserted between the two adjacent battery sheets.

Images