Battery string repairing tool

Abstract

The utility model relates to the technical field of battery repair, in particular to a battery string repair tool. The battery string repair tool comprises an object placing table, the object placing table comprises a plurality of extraction parts, the object placing table is used for placing battery strings, and the extraction parts are used for extracting and storing battery pieces on the battery strings; and the welding part is used for disconnecting the welding strip of the bad battery piece on the extraction part and welding the welding strip of the replaced battery piece on the extraction part and the welding strip of the adjacent battery piece on the battery string. According to the repair tool, simple operation can be achieved, the dependency degree on the operation proficiency degree of personnel is reduced, the situation that the repair quality is uneven due to operation of the personnel is reduced, and meanwhile the repair speed is increased.

Description

Technical Field

[0001] This application relates to the field of battery repair technology, and in particular to a battery string repair tooling. Background Technology

[0002] Fully back-contact crystalline silicon photovoltaic cells (BC cells) have a high theoretical limit efficiency and are one of the current development directions for high-efficiency photovoltaic modules. Currently, the main defects in BC cell strings include microcracks, short circuits, poor soldering, and over-soldering. Cells with microcracks, short circuits, and over-soldering need to be replaced with normal cells.

[0003] In the rework process of BC battery strings, the battery strings are generally laid flat, and then repaired manually with a handheld soldering iron. This method has drawbacks: slow repair speed, high requirements for personnel experience, necessitating extensive training before being qualified to perform the job, and significant investment of human and material resources. Furthermore, the quality of the repair is closely related to the skill level of the repair personnel, resulting in inconsistent quality.

[0004] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content

[0005] This application provides a battery string repair tooling to solve or alleviate one or more of the technical problems mentioned above.

[0006] This application provides a tooling for reworking battery strings.

[0007] The battery string repair tooling includes:

[0008] A shelf, which includes several extraction sections, is used to place battery strings, and the extraction sections are used to extract and store individual battery cells from the battery strings.

[0009] A welding section, which is used to weld or disconnect the solder strips of the battery cells in the extraction section.

[0010] The battery string repair fixture of this application embodiment can disconnect the welded sections of defective battery cells in the battery string and weld the solder strips of replacement battery cells to the solder strips of adjacent battery cells in the battery string using the welding section. The placement platform allows for the extraction and storage of specific battery cells, facilitating the placement of replacement battery cells in the original position of the defective battery cells and preventing weak welding caused by misalignment. Using the repair fixture of this application enables simple operation, reduces reliance on operator skill, minimizes inconsistent repair quality caused by manual operation, and also improves repair speed. Attached Figure Description

[0011] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0012] Figure 1 This is a front view of the battery string repair tooling provided in the embodiments of this application;

[0013] Figure 2 This is a top view of the shelf provided in the embodiment of this application;

[0014] Figure 3 This is a top view of the battery string provided in this embodiment of the application placed on a shelf;

[0015] Figure 4 This is a top view of the battery cell to be repaired being removed from the shelf, as provided in the embodiments of this application.

[0016] Figure 5 This is a schematic diagram of the internal structure of the shelf provided in the embodiment of this application;

[0017] Figure 6 This is a schematic diagram of the internal structure of a shelf provided in other embodiments of this application.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1-Handheld part; 2-Connecting part; 3-Heating plate; 4-Telescopic welding pin; 5-Battery string; 6-Storage platform; 501-Defective battery cell; 601-Pull-out part; 6011-Top plate; 6012-Bottom plate; 6013-Lifting mechanism; 6014-Handle. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] In this application, when numerical intervals (i.e., numerical ranges) are involved, unless otherwise specified, the distribution of selectable numerical values ​​within the numerical interval is considered continuous, and includes the two endpoints of the numerical interval (i.e., the minimum and maximum values), as well as every numerical value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that numerical interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints, which is equivalent to directly listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, percentage, ratio, etc. The term "numerical interval" can be broadly included to include percentage intervals, ratio intervals, proportion intervals, etc.

[0023] This application provides a technical solution for battery string repair tooling. Based on this, it assists personnel in repairing battery strings. Using this repair tooling, both repair quality and speed are significantly improved, thereby reducing labor and material costs. See below for details.

[0024] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. It should be understood that these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0025] like Figure 1 As shown, the battery string repair fixture may include a platform and a welding section.

[0026] In some embodiments, such as Figure 2As shown, the shelf includes several extraction sections. The shelf is used to place battery strings, and the extraction sections are used to extract and store individual battery cells from the battery strings. Thus, the shelf can realize the extraction and storage of specific battery cells, facilitating the extraction of defective battery cells and the storage of replacement battery cells.

[0027] Understandably, when the battery string is a BC battery string, during rework, the front side (the side without soldered blue film) of the BC battery string needs to be placed in contact with the platform, so that the soldered side (the side with solder strips) of the BC battery string is facing upwards.

[0028] In some embodiments, participate Figure 2 and Figure 4 The extraction unit 601 includes a base plate 6012 and a top plate 6011 disposed opposite each other in a third direction. The top plate 6011 is movably mounted on the base plate 6012 and slides along a first direction, which is... Figure 2 In the direction of the middle dashed line, Figure 1 and Figure 2 It can be seen that the first direction is perpendicular to the third direction. When the battery string is placed on the shelf, see... Figure 3 As shown, each battery cell in the battery string is located on a separate extraction section 601. The liftable design of the extraction section 601 facilitates the complete separation of the solder strip of the defective battery cell 501 from the solder strip of the adjacent battery cell. The sliding arrangement of the extraction section 601 along the first direction allows the defective battery cell 501 to be extracted along with it, and also allows the replacement battery cell on it to be placed into the position of the battery cell to be replaced in the battery string, which is convenient for positioning.

[0029] The defects in the defective battery cells include at least one of microcracks, short circuits, and over-soldering. It is worth noting that the sliding arrangement of the extraction unit 601 along the first direction can be achieved via a slide rail.

[0030] In some embodiments, participate Figure 4 The extraction unit 601 further includes a handle 6014, which is used to control the lifting and lowering of the top plate 6011 and its sliding in the first direction. This facilitates the operation of the extraction unit.

[0031] Furthermore, the extraction section 601 is box-shaped, for example, the extraction section 601 can be cuboid in shape, and the extraction section 601 also includes four side plates disposed between the bottom plate 6012 and the top plate 6011; wherein, adjacent extraction sections 601 in the shelf are connected by the side plates on both sides, and the handle 6014 is disposed on one of the remaining side plates of the extraction section 601.

[0032] Optionally, a slide rail may be provided at a certain height on the side plate of the extraction section 601 to facilitate the sliding of the top plate 6011 in the first direction when it descends to this height.

[0033] Optionally, the handles 6014 are all located on the side plates at the front or rear end of the extraction part 601, for example... Figure 4 In the middle, the handles 6014 are all located on the front side plate of the extraction part 601.

[0034] In some embodiments, the extraction section 601 is provided with a lifting mechanism 6013, which drives the top plate 6011 to rise and fall as the handle 6014 rotates. This facilitates operation.

[0035] In some specific embodiments, see Figure 5 The lifting mechanism 6013 includes a curved support column, which supports the top plate 6011 and can rotate with the handle 6014. The handle 6014 is connected to the curved support column via a connecting shaft, and rotating the handle 6014 causes the curved support column to rotate. For example, the curved support column is an elliptical cylinder, and the curved surface of the elliptical cylinder supports the top plate 6011. The center of the elliptical cylinder is connected to the connecting shaft. When the top plate 6011 is located at the top of the side plate, the curved surface of the elliptical cylinder provides the maximum support height.

[0036] In other specific embodiments, see Figure 6 The lifting mechanism 6013 includes an X-shaped support column, which supports the top plate 6011 and can rotate with the handle 6014. The handle 6014 is connected to the X-shaped support column via a connecting shaft, so that rotating the handle 6014 drives the X-shaped support column to rotate. It is worth noting that the X-shaped support column uses two fulcrums to support the top plate 6011. Figure 6 The top plate 6011 is supported by a higher fulcrum on one side, at which point the top plate 6011 is located at the top of the side plate. As the handle 6014 is rotated, the top plate 6011 is supported by a relatively lower fulcrum on one side, at which point the top plate 6011 is located at a certain height at the top of the side plate. A slide rail can be provided at this point on the side plate to allow the top plate 6011 to slide in the first direction.

[0037] In some embodiments, the welding section is used to disconnect the solder strips of defective battery cells on the extraction section, and to weld the solder strips of replacement battery cells on the extraction section to the solder strips of adjacent battery cells on the battery string. This allows for the disconnection and welding operations required for rework.

[0038] In some embodiments, see Figure 1The welding section includes a heating plate 3 and a telescopic welding pin 4. The heating plate 3 provides the temperature required for welding, and the telescopic welding pin 4 is mounted on the heating plate 3. This allows for the individual extension and retraction of the welding pin, enabling the disconnection and welding of specific battery cell strips.

[0039] Further, see also Figure 1 The telescopic welding pin 4 is along the second direction. Figure 1 The dotted lines are distributed on the heating plate 3. The spacing between adjacent telescopic welding pins 4 is greater than or equal to the width L1 of the battery cells on the battery string, and less than the sum of the width of the battery cells and the spacing between the two sides of the battery cells, L2. This allows the telescopic welding pins 4 to be positioned correspondingly to the welding strips on the battery string. When the welding section is positioned above the battery string, the telescopic welding pins 4 can be extended to target the defective battery cell until they contact the welding strip of the defective battery cell and melt and break the welding strip through high temperature.

[0040] Optionally, the welding part further includes a handheld part 1, which is located on the side of the heating plate 3 away from the telescopic welding needle 4. This facilitates handheld operation.

[0041] Optionally, the handheld part 1 is mounted on the heating plate 3 via the connecting part 2.

[0042] This application also provides a battery string repair method based on the repair tooling of this application, which includes the following operations:

[0043] Place the BC battery string face down on the shelf, with each battery cell of the BC battery string located on its respective extraction section.

[0044] Place the welding section above the BC battery string, turn on the heating plate 3 to the preset temperature, and control the telescopic welding pin 4 corresponding to the defective battery cell on the battery string to extend until the telescopic welding pin 4 contacts the welding strip of the defective battery cell 501. The welding strips on both sides of the defective battery cell 501 are melted by high temperature, so that the melted part of the welding strip is completely separated. Then rotate the handle 6014 to lower the top plate 6011 where the defective battery cell 501 is located to the preset height, and then pull the handle 6014 to pull out the top plate 6011.

[0045] Remove the defective battery cell 501 and place the replacement battery cell inside. Push the handle 6014 to store the top plate 6011 in its original position. Rotate the handle 6014 to raise the top plate 6011 to be flush with the other top plates. Then, control the telescopic welding pin 4 corresponding to the replacement battery cell on the battery string to extend until the telescopic welding pin 4 contacts the welding strip of the replacement battery cell. Weld the welding strips on both sides of the replacement battery cell to the welding strips of the adjacent battery cell through high temperature.

[0046] This completes the repair of the battery string.

[0047] During this process, the corresponding telescopic welding pin 4 and extraction part can be activated according to the location of the defective battery cell. Using this rework tooling, one or more defective battery cells on the battery string can be repaired at the same time.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] For ease of description, directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom" generally indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the components themselves. For example, if a device in the drawings is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0050] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] Unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0053] It should also be noted that the terms "one embodiment," "another embodiment," or "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0054] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0055] It should also be noted that the above are merely preferred embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A battery string repair tooling, characterized in that, include: A shelf, the shelf including several extraction parts (601), the shelf for placing battery strings (5), the extraction parts (601) for extracting and storing each battery cell on the battery string (5); A welding section, which is used to weld or disconnect the solder strips of the battery cells of the extraction section (601).

2. The battery string repair fixture according to claim 1, characterized in that, The welding section is used to disconnect the solder strips of defective battery cells on the extraction section (601) and to weld the solder strips of replacement battery cells on the extraction section (601) to the solder strips of adjacent battery cells on the battery string (5). The defects in the defective battery cells include at least one of microcracks, short circuits, and over-soldering.

3. The battery string repair fixture according to claim 1, characterized in that, The extraction section (601) includes a bottom plate (6012) and a top plate (6011) disposed opposite each other in a third direction. The top plate (6011) is slidably disposed on the bottom plate (6012) and slides along a first direction. Wherein, the third direction is perpendicular to the first direction.

4. The battery string repair fixture according to claim 3, characterized in that, The extraction unit (601) further includes: A handle (6014) is provided for controlling the lifting and lowering of the top plate (6011) and the sliding of the top plate (6011) in the first direction.

5. The battery string repair fixture according to claim 4, characterized in that, The extraction part (601) is box-shaped, and the extraction part (601) also includes four side plates disposed between the bottom plate (6012) and the top plate (6011); The adjacent drawer sections (601) in the shelf are connected by side plates on both sides, and the handle (6014) is provided on one of the other two side plates of the drawer section (601).

6. The battery string repair fixture according to claim 5, characterized in that, The extraction section (601) is equipped with a lifting mechanism (6013), which drives the top plate (6011) to rise and fall as the handle (6014) rotates.

7. The battery string repair fixture according to claim 6, characterized in that, The lifting mechanism (6013) includes a curved support column for supporting the top plate (6011), and the curved support column can rotate with the rotation of the handle (6014).

8. The battery string repair fixture according to claim 6, characterized in that, The lifting mechanism (6013) includes an X-shaped support column for supporting the top plate (6011), and the X-shaped support column can rotate with the rotation of the handle (6014).

9. The battery string rework fixture according to claim 1, characterized in that, The welded portion includes: A heating plate (3) and a telescopic welding needle (4) are provided on the heating plate (3) to provide the temperature required for welding.

10. The battery string repair fixture according to claim 9, characterized in that, The telescopic welding pins (4) are distributed on the heating plate (3) along the second direction. The distance between adjacent telescopic welding pins (4) is greater than or equal to the width of the battery cells on the battery string (5) and less than the sum of the width of the battery cells on the battery string (5) and the distance between the two sides of the battery cells.

11. The battery string repair fixture according to claim 10, characterized in that, The welding section also includes: Hand-held part (1), the hand-held part (1) is located on the side of the heating plate (3) away from the telescopic welding needle (4).

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