Film coating stringing method and tool mechanism
By using a coating and dispensing method and tooling mechanism, a double fixation is formed between the solder ribbon and the battery cell, which solves the problem of poor contact between the solder ribbon and the grid line, and improves the conductivity and placement accuracy of the battery string.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU WISDOM VALLEY LASER INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2026-04-08
- Publication Date
- 2026-07-10
AI Technical Summary
In existing technologies, the conductivity of photovoltaic cell strings is easily affected by poor contact or separation between the solder ribbon and the grid lines, leading to a decrease in the conductivity of the cell strings.
A film-coated adhesive stringing method is adopted, in which the welding ribbon is bonded to the grid lines on the surface of the battery cell through a tooling mechanism. During welding, the adhesive film is applied to bond the welding ribbon to the grid lines on the surface of the battery cell. During welding, the adhesive film is applied to the welding ribbon and the battery cell, forming a double fixation between the welding ribbon and the battery cell. The welding ribbon tooling mechanism includes a positioning groove and a positioning rod. The welding ribbon tooling moves in a specific direction to ensure accurate positioning of the welding ribbon and the battery cell.
This improves the tightness of the connection between the solder ribbon and the battery cell, reduces the probability of poor contact or separation between the solder ribbon and the battery cell grid lines, and ensures the conductivity and placement accuracy of the battery string.
Smart Images
Figure CN122373516A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic module technology, and in particular to a method for coating and dispensing adhesive to form strings and a tooling mechanism. Background Technology
[0002] Photovoltaic panels are composed of multiple battery strings spliced together by busbars, and each battery string is formed by multiple solar cells connected by solder ribbons. When laying the solder ribbons onto the solar cells, they must be reliably bonded to the grid lines of the solar cells. Common bonding methods include welding, adhesive dispensing, and adhesive film bonding. However, welding is costly; adhesive dispensing has weak conductivity; therefore, adhesive film bonding is often chosen in existing technologies. However, if only adhesive film is used to bond the solder ribbons, they are prone to falling off due to insecure fixation. Once the solder ribbons have poor contact with the grid lines or completely separate, it will increase resistance or block current, thereby impairing the conductivity of the battery string. In addition, during the adhesive film bonding process, it is difficult to simultaneously lower the adhesive film from all directions and bond the solder ribbons to the solar cells. The adhesive film bonding process can cause the solder ribbons to shift, resulting in poor contact or complete separation between the solder ribbons and the grid lines, thus affecting the conductivity of the battery string.
[0003] Therefore, it is urgent to study a coating dispensing and stringing method and tooling mechanism to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a coating dispensing and stringing method and tooling mechanism to solve the problem that the conductivity efficiency of battery strings is easily affected in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A method for coating and dispensing in series includes: S1. A tooling mechanism is placed on the battery cell. The tooling mechanism has a solder strip placement area and at least two positioning grooves communicating with the solder strip placement area. Along a first direction, the solder strip placement area is located between the two positioning grooves. S2. The welding strip is arranged along the first direction and placed on the battery cell and located in the welding strip placement area of the tooling mechanism, and the end of the welding strip is fixed by two positioning grooves of the tooling mechanism, and the welding strip is in contact with the grid lines on the surface of the battery cell. S3. Adhere the solder ribbon to the battery cell using an adhesive film; S4. Remove the tooling mechanism; S5. Apply adhesive to the ends of the solder ribbon to bond it to the battery cell; S6. After the glue cures, it forms glue dots.
[0006] As an optional technical solution for the coating and dispensing stringing method, the tooling mechanism includes two welding ribbon toolings, each welding ribbon tooling having several positioning grooves. In S1, the two welding ribbon toolings are placed at both ends of the battery cell respectively, and the positioning grooves on the two welding ribbon toolings correspond one-to-one to form several limiting combinations, and a welding ribbon placement area is formed between the two welding ribbon toolings. In S2, each limiting combination corresponds to one welding ribbon, and the two ends of each welding ribbon are placed in the two positioning grooves in the same limiting combination respectively.
[0007] As an optional technical solution for the coating and dispensing stringing method, the welding strip tooling includes two bases and a positioning rod. The positioning rod is located between the two bases, and the positioning groove is located on the positioning rod. In S1, along the extension direction perpendicular to the welding strip, the two bases are located on both sides of the battery cell, and the positioning rod is suspended above the battery cell.
[0008] As an optional technical solution for a coating dispensing chain method, in S4, when the solder ribbon fixture is removed, the two solder ribbon fixtures move in opposite directions along a first direction, and then, while maintaining their movement, turn to move along a second direction to separate the solder ribbon fixtures from the solder ribbon. The first direction is parallel to the extension direction of the solder ribbon, and the second direction is obliquely upward and forms an acute angle with the first direction; or... In S4, when the welding strip fixture is removed, the welding strip fixture moves upward to separate from the welding strip.
[0009] As an alternative technical solution for a coating and dispensing stringing method, in S4, when the two welding ribbon fixtures move along the first direction, the two welding ribbon fixtures move synchronously and move away from each other.
[0010] As an optional technical solution for a coating dispensing stringing method, the distance the welding ribbon tool moves away from the welding ribbon is the first dimension, and the length of the welding ribbon in the positioning groove before moving is the second dimension. The first dimension is smaller than the second dimension.
[0011] As an optional technical solution for the coating and dispensing stringing method, in S3, the adhesive film is bonded to the battery cell between two welding ribbon fixtures. Along the extension direction of the welding ribbon, the middle of the adhesive film contacts the welding ribbon and the battery cell first, and the two ends of the adhesive film then contact the welding ribbon and the battery cell.
[0012] As an alternative technical solution for the coating and dispensing stringing method, in S3, adhesive is first dispensed at the middle position of the solder ribbon, and then the adhesive film is applied so that the adhesive film, solder ribbon and battery cell are bonded together.
[0013] A tooling mechanism for implementing the coating and dispensing stringing method described in any of the above technical solutions, wherein the welding strip tooling has a welding strip placement area and a positioning groove communicating with the welding strip placement area, the extension direction of the positioning groove is consistent with the extension direction of the welding strip, and is used to constrain the welding strip in a direction perpendicular to the welding strip.
[0014] As an optional technical solution for the tooling mechanism, the tooling mechanism includes two welding strip toolings, each welding strip tooling includes two bases and a positioning rod, the positioning rod is disposed between the two bases, the positioning groove is disposed on the positioning rod, and the distance between the bottom surface of the base and the bottom surface of the positioning rod is greater than or equal to the thickness of the battery cell.
[0015] The present invention has at least the following beneficial effects: This invention provides a coating and adhesive dispensing method for stringing solar cells and a tooling mechanism. The coating and adhesive dispensing method includes the following steps: placing a tooling mechanism on a solar cell, the tooling mechanism having a solder ribbon placement area and at least two positioning grooves communicating with the solder ribbon placement area, the solder ribbon placement area being located between the two positioning grooves along a first direction; arranging the solder ribbon along the first direction and placing it on the solar cell within the solder ribbon placement area of the tooling mechanism, with the ends of the solder ribbon fixed by the two positioning grooves of the tooling mechanism, the solder ribbon adhering to the grid lines on the surface of the solar cell; attaching the solder ribbon to the solar cell using an adhesive film; removing the tooling mechanism; dispensing adhesive to the ends of the solder ribbon to bond the solder ribbon to the solar cell; and forming adhesive dots after the adhesive cures.
[0016] Using the above method, the solder ribbon and the battery cell are double-fixed through adhesive application and film, greatly improving the connection tightness. Even if the film falls off, the solder ribbon can still be fixed by the adhesive dots, reducing the probability of poor contact or separation between the solder ribbon and the grid lines on the battery cell, thus ensuring the conductivity efficiency of the battery string. Furthermore, during the film application process, even if it is difficult to simultaneously lower the film from all directions and attach the solder ribbon to the battery cell, the longitudinal displacement of the solder ribbon will not occur due to the constraint of the positioning grooves at both ends, ensuring placement accuracy and thus guaranteeing good contact between the solder ribbon and the grid lines, ensuring the conductivity efficiency of the battery string. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.
[0018] Figure 1 This is a flowchart of the coating and dispensing method in an embodiment of the present invention; Figure 2 This is a schematic diagram of the welding strip tooling structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the battery cell in an embodiment of the present invention; Figure 4This is a schematic diagram of the structure of the welding strip fixture placed on the battery cell in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of placing solder ribbons on the battery cell in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of attaching a cornea to a battery cell in an embodiment of the present invention; Figure 7 for Figure 6 A magnified view of a section at point A in the middle; Figure 8 This is a schematic diagram of the structure for removing the welding strip tooling in an embodiment of the present invention; Figure 9 This is a schematic diagram of the adhesive structure at both ends of the solder strip in an embodiment of the present invention.
[0019] In the picture: 1000, Solar cell; 1100, Grid line; 2000, Solder ribbon; 3000, Adhesive film; 4000, Adhesive dot; 10. Welding strip fixtures; 100. Base; 200. Positioning rod; 210. Positioning groove; 300. Welding strip placement area. Detailed Implementation
[0020] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.
[0021] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0022] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.
[0023] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0024] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not use relative terms should also be disclosed as specific values with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.
[0025] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0026] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.
[0027] like Figures 1 to 9 As shown, this embodiment provides a coating dispensing and stringing method, which includes the following steps: S1. A tooling mechanism is placed on the battery cell 1000. The tooling mechanism has a ribbon placement area 300 and at least two positioning grooves 210 communicating with the ribbon placement area 300. Along the first direction, the ribbon placement area 300 is located between the two positioning grooves 210.
[0028] S2. The welding ribbon 2000 is arranged along the first direction and placed on the battery cell 1000 and located in the welding ribbon placement area 300 of the tooling mechanism. The end of the welding ribbon 2000 is fixed by the two positioning grooves 210 of the tooling mechanism. The welding ribbon 2000 is attached to the grid line 1100 on the surface of the battery cell 1000.
[0029] S3. Adhere the solder ribbon 2000 to the battery cell 1000 using the adhesive film 3000.
[0030] S4. Remove the tooling mechanism.
[0031] S5. Apply adhesive to the end of the solder ribbon 2000 to bond the solder ribbon 2000 to the battery cell 1000.
[0032] S6. After the glue cures, it forms 4000 glue dots.
[0033] Using the above method, the solder ribbon 2000 and the battery cell 1000 are double-fixed by adhesive dots and adhesive film 3000, which greatly improves the connection tightness. Even if the adhesive film 3000 falls off, the solder ribbon 2000 can still be fixed by the adhesive dots 4000, thereby reducing the probability of poor contact or separation between the solder ribbon 2000 and the grid lines 1100 on the battery cell 1000, and ensuring the conductivity efficiency of the battery string. In addition, during the application of adhesive film 3000, even if it is difficult to simultaneously place the adhesive film 3000 on the battery cell 1000 from all directions (for example, one end is placed first and the other end is placed later, or the middle is placed first and the two ends are placed later), the longitudinal displacement of the solder ribbon 2000 will not occur because the two ends of the solder ribbon 2000 are constrained by the positioning groove 210, ensuring placement accuracy and thus ensuring good contact between the solder ribbon 2000 and the grid lines 1100, ensuring the conductivity efficiency of the battery string. Here, longitudinal refers to the extension direction of the solder ribbon 2000 itself.
[0034] The tooling mechanism includes two welding ribbon fixtures 10, each with several positioning slots 210. In step S1, the two welding ribbon fixtures 10 are placed at both ends of the battery cell 1000, with the positioning slots 210 on the two welding ribbon fixtures 10 corresponding one-to-one to form several limiting combinations. A welding ribbon placement area 300 is formed between the two welding ribbon fixtures 10. In step S2, each limiting combination corresponds to one welding ribbon 2000, and the two ends of each welding ribbon 2000 are placed in two positioning slots 210 within the same limiting combination. This arrangement helps to accommodate welding ribbons 2000 of different lengths, and placing one welding ribbon fixture 10 can complete the installation of several welding ribbons 2000.
[0035] In some embodiments, the welding ribbon fixture 10 includes two bases 100 and a positioning rod 200. The positioning rod 200 is disposed between the two bases 100, and a positioning groove 210 is disposed on the positioning rod 200. The distance between the bottom surface of the base 100 and the bottom surface of the positioning rod 200 is greater than or equal to the thickness of the solar cell 1000. In step S1, along a direction perpendicular to the extension direction of the welding ribbon 2000, the bases 100 are respectively located on both sides of the solar cell 1000, and the positioning rod 200 spans the solar cell 1000 and is placed above the solar cell 1000. The above method effectively avoids the welding ribbon fixture 10 from exerting pressure on the solar cell 1000, thereby improving the structural safety of the solar cell 1000.
[0036] To facilitate bonding, in some embodiments, in S3, the adhesive film 3000 is bonded to the battery cell 1000 between the two welding ribbon fixtures 10, with gaps left between both ends of the adhesive film 3000 and the two welding ribbon fixtures 10 along the extension direction of the welding ribbon 2000. Further, in the bonding of the adhesive film 3000 to the battery cell 1000 between the two welding ribbon fixtures 10, along the extension direction of the welding ribbon 2000, the middle of the adhesive film 3000 first contacts the welding ribbon 2000 and the battery cell 1000, and the two ends of the adhesive film 3000 subsequently contact the welding ribbon 2000 and the battery cell 1000. The above method helps ensure the flatness of the adhesive film 3000 during the bonding process and helps eliminate air bubbles generated between the adhesive film 3000 and the battery cell 1000, improving the bonding effect. Finally, by bonding the middle part of the solder ribbon 2000 first, combined with the fact that the two ends of the solder ribbon 2000 have been limited, the stability of the solder ribbon 2000 is ensured. Then, during the bonding process to both sides, it helps to ensure that the position of the solder ribbon 2000 does not shift. Specifically, the bonding process of the adhesive film 3000 can be achieved by setting two rollers on the side of the adhesive film 3000 away from the battery cell 1000. After the two rollers press against the middle part of the adhesive film 3000, they roll towards both ends of the adhesive film 3000 respectively.
[0037] Due to the dimensional relationship between the solder ribbon 2000 and the groove wall of the positioning groove 210, there may be a certain frictional force between the solder ribbon fixture 10 and the solder ribbon 2000 when the solder ribbon fixture 10 is removed. To prevent this frictional force from causing the solder ribbon 2000 to shift or even separate from the battery cell 1000, in some embodiments, in S4, when the solder ribbon fixture 10 is removed, the two solder ribbon fixtures 10 move in opposite directions along a first direction, and then, while maintaining the movement, turn to move along a second direction to separate the solder ribbon fixture 10 and the solder ribbon 2000. The first direction is parallel to the extension direction of the solder ribbon 2000, and the second direction is obliquely upward and forms an acute angle with the first direction. The angle between the second direction and the first direction ranges from 30° to 60°. When the welding ribbon fixture 10 moves along the first direction, it needs to overcome a large static friction force with the welding ribbon 2000. This process is overcome by the structural strength of the welding ribbon 2000 itself. When moving along the second direction, there is a smaller upward kinetic friction force between the welding ribbon fixture 10 and the welding ribbon 2000. At this time, the upward force is even smaller and can be overcome by the weight of the welding ribbon 2000 itself, effectively reducing the possibility of the welding ribbon 2000 separating from the battery cell 1000. Figure 6 As shown, the first direction is the left-right direction. When removing the welding strip fixture 10, the left-side welding strip fixture 10 first moves to the left, and then moves to the upper left; the right-side welding strip fixture 10 first moves to the right, and then moves to the upper right. Figures 3 to 9 This is a top view of the battery cell 1000, with the vertical direction perpendicular to the plane containing the battery cell 1000. Of course, in other embodiments, the soldering ribbon fixture 10 can be removed in other ways. For example, when removing the soldering ribbon fixture 10, the left-side fixture 10 moves first to the right and then to the upper right, while the right-side fixture 10 moves first to the left and then to the upper left. It should be noted that regardless of the driving direction, the rotation of the soldering ribbon fixture 10 cannot exceed 90 degrees, and care must be taken to avoid collisions with the battery cell 1000.
[0038] In S4, when the two welding ribbon fixtures 10 move in opposite directions along the first direction, the two welding ribbon fixtures 10 move synchronously and move away from each other. At the moment of startup, the frictional forces applied by the two welding ribbon fixtures 10 to the welding ribbon 2000 are opposite and cancel each other out, preventing the welding ribbon 2000 from shifting relative to the battery cell 1000.
[0039] Further, the distance the welding ribbon fixture 10 moves away from the welding ribbon 2000 is the first dimension, and the length of the welding ribbon 2000 in the positioning groove 210 before moving is the second dimension L. The first dimension is smaller than the second dimension L. The above method reduces the friction between the welding ribbon fixture 10 and the bottom support structure, and reduces the wear of the welding ribbon fixture 10. In addition, the above method also helps to reduce the relative movement distance between the welding ribbon fixture 10 and the welding ribbon 2000, reduce the wear on the welding ribbon 2000, and ensure its conductivity. In other embodiments, the material hardness of the welding ribbon fixture 10 is less than the hardness of the welding ribbon 2000. In other embodiments, a plurality of telescopic members are installed on the welding ribbon fixture 10, and each is installed on the positioning rod 200 through an elastic member. Each positioning groove 210 corresponds to one telescopic member. The telescopic member is installed on one side wall of the positioning groove 210 and can approach the other side wall of the same positioning groove 210. The hardness of the telescopic member is less than the hardness of the welding ribbon 2000. When the telescopic component wears down, the elastic force of the elastic component compensates for the wear. This is achieved by coating another sidewall of the positioning groove 210, with the coating having a hardness greater than that of the weld strip 2000. The sidewall of the coating acts as a limiting point to restrict the position of the weld strip 2000. This method minimizes wear on the weld strip 2000.
[0040] In other embodiments, the first dimension can be larger than the second dimension L. The above method allows the welding ribbon fixture 10 to directly separate from the welding ribbon 2000 during its movement, avoiding an upward component force on the welding ribbon 2000 that could cause it to bend upwards. It should be noted that when the welding ribbon fixture 10 exerts an upward component force on the welding ribbon 2000, this upward component force is less than the weight of the welding ribbon 2000.
[0041] In some embodiments, in S4, when the welding strip fixture 10 is removed, the welding strip fixture 10 moves upward to separate from the welding strip 2000. In this embodiment, the upward frictional force generated by the welding strip fixture 10 on the welding strip 2000 is less than the weight of the welding strip 2000. In this embodiment, positioning grooves 210 are provided on both the left and right sides of the welding strip fixture 10, and both can position the welding strip 2000.
[0042] In step S3, adhesive is first applied to the center of the solder ribbon 2000, and then the adhesive film 3000 is applied to bond the adhesive film 3000, solder ribbon 2000, and battery cell 1000 together. This setup, on the one hand, increases the connection strength between the solder ribbon 2000 and battery cell 1000 through the cured adhesive dots 4000; on the other hand, by bonding the adhesive film 3000, battery cell 1000, and solder ribbon 2000 together, it further increases the connection strength between the adhesive film 3000 and battery cell 1000, thereby reducing the probability of the adhesive film 3000 falling off the battery cell 1000, and further reducing the probability of poor contact or separation between the solder ribbon 2000 and the grid lines 1100 on the battery cell 1000.
[0043] This embodiment also provides a tooling mechanism for implementing the coating and dispensing stringing method in any of the above embodiments. The tooling mechanism has a solder ribbon placement area 300 and a positioning groove 210 communicating with the solder ribbon placement area 300. The extension direction of the positioning groove 210 is consistent with the extension direction of the solder ribbon 2000 and is used to constrain the solder ribbon 2000 in a direction perpendicular to the solder ribbon 2000.
[0044] In some embodiments, the tooling mechanism includes two welding strip tooling fixtures 10. Each welding strip tooling fixture 10 includes two bases 100 and a positioning rod 200. The positioning rod 200 is disposed between the two bases 100, and positioning grooves 210 are disposed on the positioning rod 200. The distance between the bottom surface of the base 100 and the bottom surface of the positioning rod 200 is greater than or equal to the thickness of the battery cell 1000, so that the positioning rod 200 can be suspended above the battery cell 1000. Each side of the positioning rod 200 is provided with a plurality of positioning grooves 210. In use, the two welding strip tooling fixtures 10 do not need to be distinguished as left or right, improving ease of use.
[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A method for coating and dispensing adhesive to form strings, characterized in that, include: S1. A tooling mechanism is placed on the battery cell (1000), the tooling mechanism having a solder strip placement area (300) and at least two positioning grooves (210) communicating with the solder strip placement area (300), the solder strip placement area (300) being located between the two positioning grooves (210) along a first direction; S2. The welding ribbon (2000) is arranged along the first direction and placed on the battery cell (1000) and located in the welding ribbon placement area (300) of the tooling mechanism, and the end of the welding ribbon (2000) is fixed by the two positioning grooves (210) of the tooling mechanism, and the welding ribbon (2000) is attached to the grid line (1100) on the surface of the battery cell (1000); S3. Adhere the solder ribbon (2000) to the battery cell (1000) using the adhesive film (3000). S4. Remove the tooling mechanism; S5. Apply adhesive to the end of the solder ribbon (2000) to bond the solder ribbon (2000) to the cell (1000). S6. After the glue cures, it forms glue dots (4000).
2. The coating and dispensing method for stringing according to claim 1, characterized in that, The tooling mechanism includes two welding strip toolings (10), each welding strip tooling (10) having several positioning grooves (210). In S1, the two welding strip toolings (10) are placed at both ends of the battery cell (1000), and the positioning grooves (210) on the two welding strip toolings (10) correspond one-to-one to form several limiting combinations. A welding strip placement area (300) is formed between the two welding strip toolings (10). In S2, each limiting combination corresponds to a welding strip (2000), and the two ends of each welding strip (2000) are placed in the two positioning grooves (210) in the same limiting combination.
3. The coating and dispensing method for stringing according to claim 2, characterized in that, The welding strip fixture (10) includes two bases (100) and a positioning rod (200). The positioning rod (200) is located between the two bases (100), and the positioning groove (210) is located on the positioning rod (200). In S1, along the extension direction perpendicular to the welding strip (2000), the two bases (100) are located on both sides of the battery cell (1000), and the positioning rod (200) is suspended above the battery cell (1000).
4. The coating and dispensing method for stringing according to claim 2, characterized in that, In S4, when the welding strip fixture (10) is removed, the two welding strip fixtures (10) move in opposite directions along a first direction, and then, while maintaining their movement, turn to move along a second direction to separate the welding strip fixture (10) and the welding strip (2000). The first direction is parallel to the extension direction of the welding strip (2000), and the second direction is obliquely upward and at an acute angle to the first direction; or, In S4, when the welding strip fixture (10) is removed, the welding strip fixture (10) moves upward to separate from the welding strip (2000).
5. The coating and dispensing method for stringing according to claim 4, characterized in that, In S4, the two welding strip fixtures (10) move synchronously and move away from each other.
6. The coating and dispensing method for stringing according to claim 5, characterized in that, The distance by which the welding strip fixture (10) moves away from the welding strip (2000) is the first dimension. Before moving, the length of the welding strip (2000) in the positioning groove (210) is the second dimension. The first dimension is smaller than the second dimension.
7. The coating and dispensing method for stringing according to claim 2, characterized in that, In S3, the adhesive film (3000) is bonded to the battery cell (1000) between two welding ribbon fixtures (10). Along the extension direction of the welding ribbon (2000), the middle of the adhesive film (3000) first contacts the welding ribbon (2000) and the battery cell (1000), and the two ends of the adhesive film (3000) then contact the welding ribbon (2000) and the battery cell (1000).
8. The coating and dispensing method for stringing according to any one of claims 1-7, characterized in that, In S3, glue is first applied to the middle of the solder ribbon (2000), and then the adhesive film (3000) is applied to bond the adhesive film (3000), solder ribbon (2000) and battery cell (1000).
9. A tooling mechanism for implementing the coating and dispensing method as described in any one of claims 1-8, characterized in that, The tooling mechanism has a strip placement area (300) and a positioning groove (210) connecting the strip placement area (300). The positioning groove (210) extends in the same direction as the strip (2000) and is used to constrain the strip (2000) in a direction perpendicular to the strip (2000).
10. The tooling mechanism according to claim 9, characterized in that, The tooling mechanism includes two welding strip tooling (10), each welding strip tooling (10) includes two bases (100) and a positioning rod (200). The positioning rod (200) is located between the two bases (100), and the positioning groove (210) is located on the positioning rod (200). The distance between the bottom surface of the base (100) and the bottom surface of the positioning rod (200) is greater than or equal to the thickness of the battery cell (1000).