Auxiliary attaching tool for blue film of battery cover plate
By designing a blue film-assisted attachment fixture for battery covers, and utilizing a limiting plate and abutment device to achieve precise positioning of the battery cover and flexible avoidance of the explosion-proof valve, the problem of inconsistent positioning during the attachment of the blue film for battery covers was solved, thereby improving the quality of battery products and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 马鞍山盛世科技有限公司
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-19
AI Technical Summary
The existing blue film application process for battery covers suffers from inconsistent positioning accuracy and unstable quality. It is difficult to achieve precise positioning and fixation manually and with existing tools, resulting in substandard battery product quality and safety.
A blue film-assisted attachment fixture for battery cover plates was designed, including a limiting plate and an abutment device. The fixture achieves precise positioning of the battery cover plate and flexible avoidance of the explosion-proof valve through the limiting hole and sliding groove, ensuring the accuracy and stability of the blue film attachment.
It achieves precise application of the blue film on the battery cover, improving production quality and efficiency, adapting to the production needs of battery covers of different specifications, and avoiding problems such as misaligned application of the blue film and obstruction of the explosion-proof valve due to positional deviation.
Smart Images

Figure CN224264083U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery manufacturing, and in particular to a tooling for auxiliary attachment of blue film to battery cover plates. Background Technology
[0002] In the battery manufacturing industry, the application process of the blue film on the battery cover is one of the key steps to ensure battery performance and safety. Important components such as explosion-proof valves are typically located on the battery cover. When applying the blue film, it is crucial to ensure that it adheres precisely and smoothly to the surface of the battery cover, while avoiding any obstruction or damage to critical components such as the explosion-proof valve. This ensures that the battery can release pressure normally through the explosion-proof valve in abnormal situations, guaranteeing safe use.
[0003] Currently, the application of the blue film to battery covers mainly relies on manual operation or simple auxiliary tools. However, manual operation is highly subjective and uncertain, making it difficult to guarantee the accuracy of placement and consistency of application quality each time. This can easily lead to problems such as misaligned blue film, wrinkles, and coverage of explosion-proof valves, resulting in unstable battery product quality and potentially even safety hazards. Existing simple auxiliary tools are often structurally simple and have limited functionality. They cannot accurately position and fix the battery cover, nor can they effectively avoid or protect special areas such as explosion-proof valves, making it difficult to meet the demands of large-scale, high-precision, and high-efficiency battery production.
[0004] Therefore, developing a tooling for assisting in the application of blue film to battery covers that can effectively solve the above problems is of significant practical importance. This tooling should have a precise positioning function for the battery cover, accurately avoiding critical components such as explosion-proof valves, and providing stable support and positioning during the blue film application process. This ensures that the blue film can be applied to the battery cover with high quality and efficiency, thereby improving the production quality and efficiency of battery products. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides a blue film auxiliary attachment fixture for battery cover plates, characterized in that it includes:
[0006] A limiting plate is provided with a limiting part and a limiting hole. The limiting part fixes the limiting plate to the battery cover, and the limiting hole is set to correspond to the explosion-proof valve.
[0007] An abutting device is provided on the limiting hole, and the abutting device abuts against the explosion-proof valve.
[0008] Optionally, in some embodiments of this application, the limiting part is disposed on one side of the limiting plate, and there are two limiting parts disposed on the edge of one side of the limiting plate, with a limiting groove formed between the two limiting parts.
[0009] Optionally, in some embodiments of this application, the limiting part is provided with a plurality of fixing grooves, the plurality of fixing grooves are configured as elongated structures, and the plurality of fixing grooves are arranged parallel to each other;
[0010] The limiting part is also provided with a limiting strip, which is located in the fixing groove, and the limiting strip cooperates with the limiting plate to form the limiting groove.
[0011] Optionally, in some embodiments of this application, the spacing between the limiting strips is equal to the width of the battery cover.
[0012] Optionally, in some embodiments of this application, the limiting hole extends through the upper and lower ends of the limiting plate, and the limiting hole abuts against the periphery of the explosion-proof valve.
[0013] Optionally, in some embodiments of this application, the abutting device is disposed on the limiting hole, and the abutting device includes an abutting ring, the inner ring of which abuts against the outer periphery of the explosion-proof valve.
[0014] Optionally, in some embodiments of this application, a sliding groove is provided on the limiting plate at the position corresponding to the limiting hole, and the sliding groove is parallel to the long side of the battery cover.
[0015] The abutting ring includes a first abutting part and a second abutting part. The first abutting part is located on the limiting plate, and the second abutting part is disposed in the sliding groove. A sliding plate is disposed in the sliding groove, and the sliding plate is fixedly connected to the second abutting part. The sliding plate moves linearly in the sliding groove.
[0016] Optionally, in some embodiments of this application, the second abutting portion abuts against the first abutting portion, and the first abutting portion and the second abutting portion together form the limiting hole.
[0017] Optionally, in some embodiments of this application, an elastic element is provided in the sliding groove, and the two ends of the elastic element abut against the limiting plate and the sliding plate respectively, and the elastic element pushes the sliding plate to move in the direction of the opposite sliding plate.
[0018] Optionally, in some embodiments of this application, the elastic element includes a compression spring.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] 1. The limiting parts on the limiting plate, through their reasonable layout, can effectively fix the limiting plate to the battery cover. Two limiting parts are located on one edge of the limiting plate and form a limiting groove. The limiting strips, together with the limiting plate, further enhance the positioning function of the limiting groove, and the spacing between the limiting strips is equal to the width of the battery cover. This precise dimensional design ensures that the battery cover is accurately positioned in the tooling, laying a solid foundation for the accurate application of the blue film and avoiding the problem of misaligned application of the blue film due to deviations in the placement of the battery cover.
[0021] 2. A sliding groove is provided on the limiting plate at the position corresponding to the limiting hole, and the sliding groove is parallel to the long side of the battery cover. The second abutment part of the abutment ring is set in the sliding groove and is fixedly connected to the second abutment part by a sliding plate. The sliding plate can move linearly within the sliding groove. This design allows the abutment device to be flexibly adjusted according to the position of the explosion-proof valve on battery covers of different specifications, adapting to the production needs of various battery products and improving the versatility and practicality of the tooling. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A first-view structural schematic diagram of the battery cover blue film auxiliary attachment tooling provided in the embodiments of this application;
[0024] Figure 2 A second-view structural schematic diagram of the battery cover blue film auxiliary attachment tooling provided in an embodiment of this application;
[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0026] Figure 4 This is a schematic diagram of the internal structure of the battery cover blue film auxiliary attachment tool provided in the embodiments of this application.
[0027] Explanation of reference numerals in the attached figures:
[0028] 100, Limiting plate; 110, Limiting part; 111, Fixing groove; 112, Limiting strip; 113, Limiting groove; 120, Limiting hole; 130, Sliding groove; 140, Elastic element; 200, Abutting device; 210, Abutting ring; 211, First abutting part; 212, Second abutting part; 220, Slide plate. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.
[0030] Specifically, such as Figure 1-4 As shown in the embodiment of this application, a blue film auxiliary attachment fixture for a battery cover is provided. This fixture is mainly assembled on the battery cover to assist in the attachment of the blue film for the explosion-proof valve.
[0031] In this embodiment of the application, a limiting plate 100 is mainly provided, and a limiting hole 120 is formed through the limiting plate 100. The limiting hole 120 abuts against the explosion-proof valve position on the battery cover. The size and shape of the limiting hole 120 are the same as the outer structure of the explosion-proof valve, so that the limiting hole 120 can completely abut against the explosion-proof valve, which facilitates the attachment of the blue film.
[0032] A limiting part 110 is also provided on the limiting plate 100. The limiting part 110 is located on one side of the limiting plate 100. There are two limiting parts 110, which are arranged opposite to each other on the limiting plate 100 and are located at the edge of one side of the limiting plate 100. The main body of the limiting part 110 is provided with a plurality of fixing grooves 111. The fixing grooves 111 are generally elongated. In this application, one limiting part 110 is provided with four fixing grooves 111. The four fixing grooves 111 are arranged parallel to each other. A limiting strip 112 is provided in the fixing groove 111. One limiting strip 112 is provided in one limiting part 110, so that two limiting strips 112 are provided on one side of the limiting plate 100. The two limiting strips 112 cooperate with the limiting plate 100 to form a limiting groove 113.
[0033] The setting of the limiting strip 112 can limit the installation of the limiting plate 100 on the battery cover, so that the limiting plate 100 can be installed along the position of the battery cover, and the battery cover is limited by the two limiting strips 112 to prevent the limiting plate 100 from detaching from the battery cover.
[0034] In the above, when battery covers of different sizes are involved, it is only necessary to adjust the position of the limiting strip 112 in different fixing grooves 111 to form limiting grooves 113 of different sizes.
[0035] In this embodiment of the application, the spacing between the limiting strips 112 is equal to the width of the battery cover.
[0036] In this embodiment of the application, an abutment device 200 is also provided. The abutment device 200 is disposed on the limiting plate 100. Specifically, the abutment device 200 includes an abutment ring 210, and the inner ring of the abutment ring 210 abuts against the outer ring of the explosion-proof valve.
[0037] The abutting ring 210 abuts against the limiting hole 120, which penetrates the upper and lower ends of the limiting plate 100, so that the explosion-proof valve can be limited by the limiting hole 120. At the same time, the limiting hole 120 abuts against the perimeter of the explosion-proof valve.
[0038] To facilitate the application of blue film to explosion-proof valves at different locations, a sliding groove 130 is provided on the limiting plate 100. The sliding groove 130 is set at the position corresponding to the limiting hole 120, and the sliding groove 130 is a long strip structure test paper. The sliding groove 130 is parallel to the long side of the battery cover, which facilitates the movement of the abutment device 200 along the position of the sliding groove 130.
[0039] To facilitate the movement of the abutment device 200, in this embodiment of the application, a first abutment part 211 and abutment part 212 are provided. The first abutment part 211 and the second abutment part 212 form an abutment ring 210. The first abutment part 211 is disposed on the limiting plate 100, and the second abutment part 212 is disposed in the sliding groove 130. More specifically:
[0040] Two first abutment portions 211 are provided, which are arranged opposite to each other and are both elongated structures. The elongated first abutment portions 211 are arranged along the edge of the sliding groove 130. Two second abutment portions 212 are provided, which are located between the two first abutment portions 211, and both ends of the two second abutment portions 212 abut against the first abutment portions 211 respectively, so that the first abutment portions 211 and the second abutment portions 212 together form the limiting hole 120.
[0041] In the above, since the second abutment 212 is disposed in the sliding groove 130, in order to facilitate the movement of the second abutment 212 in the sliding groove 130, a sliding plate 220 is disposed in the sliding groove 130. The sliding plate 220 moves in the sliding groove 130. At the same time, the second abutment 212 is located at one end of the sliding plate 220. The sliding plate 220 is fixedly connected to the second abutment 212. In this embodiment, the second abutment 212 has a semi-circular arc structure. During the movement of the sliding plate 220, the two ends of the second abutment 212 move along the side of the first abutment 211 toward the second abutment 212, thereby adjusting the size of the limiting hole 120.
[0042] To facilitate the movement of the second abutment 212 within the sliding groove 130, an elastic member 140 is provided within the sliding groove 130. One end of the elastic member 140 is fixed to the limiting plate 100, and the other end of the elastic member 140 abuts against the slide plate 220. The elastic member 140 pushes the slide plate 220 to move in the direction of the opposite slide plate 220.
[0043] In this embodiment, the elastic element 140 is configured as a compression spring.
[0044] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.
Claims
1. A tooling for auxiliary attachment of blue film to a battery cover, characterized in that, include: A limiting plate is provided with a limiting part and a limiting hole. The limiting part fixes the limiting plate to the battery cover, and the limiting hole is set to correspond to the explosion-proof valve. An abutting device is provided on the limiting hole, and the abutting device abuts against the explosion-proof valve.
2. The battery cover blue film auxiliary attachment fixture according to claim 1, characterized in that, The limiting part is located on one side of the limiting plate. There are two limiting parts, which are located at the edge of one side of the limiting plate, and a limiting groove is formed between the two limiting parts.
3. The battery cover blue film auxiliary attachment fixture according to claim 2, characterized in that, The limiting part is provided with multiple fixing grooves, which are configured as elongated strips and are arranged parallel to each other. The limiting part is also provided with a limiting strip, which is located in the fixing groove, and the limiting strip cooperates with the limiting plate to form the limiting groove.
4. The battery cover blue film auxiliary attachment fixture according to claim 3, characterized in that, The spacing between the limiting strips is equal to the width of the battery cover.
5. The battery cover blue film auxiliary attachment fixture according to claim 4, characterized in that, The limiting hole penetrates the upper and lower ends of the limiting plate and abuts against the perimeter of the explosion-proof valve.
6. The battery cover blue film auxiliary attachment fixture according to claim 1, characterized in that, The abutting device is disposed on the limiting hole, and the abutting device includes an abutting ring, the inner ring of which abuts against the outer periphery of the explosion-proof valve.
7. The battery cover blue film auxiliary attachment fixture according to claim 6, characterized in that, A sliding groove is provided on the limiting plate at the position corresponding to the limiting hole, and the sliding groove is parallel to the long side of the battery cover. The abutting ring includes a first abutting part and a second abutting part. The first abutting part is located on the limiting plate, and the second abutting part is disposed in the sliding groove. A sliding plate is disposed in the sliding groove, and the sliding plate is fixedly connected to the second abutting part. The sliding plate moves linearly in the sliding groove.
8. The battery cover blue film auxiliary attachment fixture according to claim 7, characterized in that, The second abutting part abuts against the first abutting part, and the first abutting part and the second abutting part together form the limiting hole.
9. The battery cover blue film auxiliary attachment fixture according to claim 8, characterized in that, An elastic element is provided in the sliding groove. The two ends of the elastic element abut against the limiting plate and the sliding plate, respectively. The elastic element pushes the sliding plate to move in the direction of the opposite sliding plate.
10. The battery cover blue film auxiliary attachment fixture according to claim 9, characterized in that, The elastic element includes a compression spring.