Appearance detection jig for battery protection plate

By designing the battery protection plate appearance inspection fixture, the problem of low efficiency of existing detection methods is solved, efficient and stable detection effects are achieved, static and mechanical damage is reduced, and large-scale production needs are met.

CN223078174UActive Publication Date: 2025-07-08GUANGDONG DESAI SILICON PRASEODYMIUM TECH CO LTD
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Patent Information

Application Number
CN202422240451.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-07-08
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

The existing battery protection board appearance detection methods rely on manual inspection or simple equipment, and are inefficient, unable to ensure the stability and consistency of the detection level, and it is difficult to meet the needs of large-scale production.

Method used

A battery protection plate appearance detection fixture is designed, including a fixture body and a fixture cover, equipped with a positioning block and a limiting slot, which can clamp multiple battery protection plates at the same time, and improve the stability and consistency of detection through components such as electrostatic coating, limiting structure and magnetic suction parts.

Benefits of technology

It improves detection efficiency, ensures the stability and consistency of detection, reduces electrostatic damage and mechanical damage, and enhances the stability and safety of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a battery protection plate appearance detection jig which comprises a jig body and a jig cover plate connected with the jig body in an overturning mode, the jig body is provided with a plurality of first positioning blocks and a plurality of pairs of second positioning blocks, the first positioning blocks are provided with positioning grooves with one side open, and the second positioning blocks are provided with positioning grooves with one side open. A limiting groove is formed between the two second positioning blocks, and a battery protection plate can be embedded in the positioning groove and the limiting groove. The beneficial effects of the utility model lie in that the detection efficiency can be improved, and the stability and consistency of the detection level can be ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery protection board detection, and particularly relates to an appearance detection jig for a battery protection board. Background Art

[0002] With the wide application of electronic devices and the continuous progress of battery technology, battery protection boards play an increasingly important role in battery management systems. The main function of a battery protection board is to protect the battery from unsafe factors such as overcharging, over-discharging, and overheating, thereby ensuring the safety and lifespan of the battery. However, during the production process of battery protection boards, the control of their appearance quality is particularly important. Since battery protection boards usually involve precise circuits and components, once appearance defects occur, they may lead to equipment failures or safety hazards.

[0003] Therefore, how to effectively detect the appearance quality of battery protection boards has become a key issue. The existing appearance detection methods for battery protection boards mainly rely on manual inspection or simple detection devices for one-by-one detection, with low efficiency, unable to ensure the stability and consistency of the detection level, and difficult to meet the requirements of large-scale production detection. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an appearance detection jig for a battery protection board that can improve the detection efficiency and ensure the stability and consistency of the detection level.

[0005] An appearance detection jig for a battery protection board includes a jig body and a jig cover plate that is flip-connected to the jig body. The jig body is provided with a plurality of first positioning blocks and a plurality of pairs of second positioning blocks. The first positioning blocks are provided with positioning grooves with one side open, and a limiting groove is formed between two of the second positioning blocks. A battery protection board can be embedded in the positioning groove and the limiting groove.

[0006] In the above scheme, one end of the battery protection board is integrated with a reinforcing piece and a connector. The heavier end is placed in the positioning groove, and the middle section of the battery protection board is embedded in the limiting groove. Since there are multiple first positioning blocks and multiple pairs of second positioning blocks on the jig body, multiple battery protection boards can be placed on the jig body. By flipping the jig cover plate to cover the jig body, clamping of multiple battery protection boards is achieved. In this way, multiple battery protection boards can be stably detected simultaneously, improving the detection efficiency. Moreover, the battery protection boards are accurately positioned, ensuring the same position for each detection, and thus guaranteeing the stability and consistency of the detection level.

[0007] Further, the jig body is provided with a plurality of rectangular first through-holes, so that a placement part connected to the positioning groove and the limiting groove is formed on the jig body.

[0008] In the above solution, a plurality of rectangular first through holes are formed in the fixture body, which can reduce the overall weight of the detection fixture. The first through holes are formed between adjacent pairs of second positioning blocks, so that a placement portion is formed on the fixture body. The placement portion is used to place and support the battery protection board, without affecting the function of the detection fixture while reducing the weight.

[0009] Furthermore, an electrostatic coating is applied to the positioning groove, the limiting groove and the placement portion.

[0010] In the above solution, since electrostatic charges may accumulate on the battery protection board on the detection fixture, it may cause damage to the tiny components on the battery protection board or generate unnecessary electrostatic discharges. The electrostatic coating effectively prevents the accumulation of static electricity, thereby reducing the impact of static electricity on the battery protection board and the fixture, and ensuring the product quality.

[0011] Furthermore, a plurality of second through holes corresponding to the first through holes are formed in the fixture cover, so that a limiting structure is formed on the fixture cover.

[0012] In the above solution, the second through holes formed in the fixture cover are used to reduce the overall weight of the fixture cover. The limiting structure formed on the fixture cover can limit the battery protection board in the vertical direction, ensuring the position stability of each battery protection board during the detection process and avoiding detection errors caused by displacement.

[0013] Furthermore, the limiting structure includes a limiting strip and a limiting step, and the limiting step and the limiting strip are integrally formed.

[0014] In the above solution, the limiting step on the limiting strip can be closer to the battery protection board, thereby limiting the displacement of the battery protection board in the vertical direction. The other parts of the limiting strip except the limiting step have a large gap with the battery protection board, which can reduce the overall contact area of the limiting structure with the battery protection board and reduce mechanical damage caused by contact. The design of integrally forming the limiting strip and the limiting step simplifies the production process.

[0015] Furthermore, a silica gel pad is attached to the limiting step.

[0016] In the above solution, the silica gel pad has a soft property, which can effectively buffer the contact force between the limiting step and the battery protection board, reduce the damage to the battery protection board caused by mechanical shock and pressure, prevent the limiting step from directly contacting the surface of the battery protection board, thereby avoiding scratching and abrasion, improving the service life of the battery protection board, and also preventing static electricity.

[0017] Furthermore, a first gap is formed between the silica gel pad and the fixture body, and a second gap is formed between the fixture cover and the second positioning block.

[0018] In the above solution, the silica gel pad can provide sufficient buffering effect, reducing the direct contact pressure of the limiting step on the battery protection board, thereby effectively protecting the battery protection board from mechanical damage. When the battery protection board is accidentally placed on the second positioning block during placement, if there is no second gap jig cover plate and it is directly pressed down, it will press on the battery protection board and cause damage to the battery protection board. The second gap can prevent the battery protection board from being squeezed or damaged.

[0019] Further, both ends of the jig cover plate are provided with circular grooves, and the grooves are embedded with first magnetic attraction members, and the jig body is embedded with second magnetic attraction members corresponding to the positions of the grooves.

[0020] In the above solution, the magnetic force of the first magnetic attraction member and the second magnetic attraction member can provide a reliable fixing force, ensuring that the jig cover plate will not loosen or shift during the working process, enhancing the stability and safety of the device. Moreover, the first magnetic attraction member and the second magnetic attraction member can automatically align the jig cover plate and the jig body, ensuring the precise docking between the two, thereby improving the positioning accuracy and consistency of the device.

[0021] Further, both ends of the jig body are provided with fixing structures, and the fixing structures are provided with rotating rods passing through them, and the jig cover plate is provided with a rotating shaft, and the rotating shaft is rotatably sleeved on the rotating rod.

[0022] In the above solution, the fixing structure provides a stable support point for the rotating rod, and the rotating shaft is sleeved on the rotating rod, which can ensure the smooth rotation process of the jig cover plate, reduce friction and jamming phenomena, and improve the fluency of the operation. This design enables the jig cover plate to be opened or closed by rotation, improving the convenience of operation for the operator.

[0023] Further, both ends of the limiting groove on the side away from the opening are provided with arc-shaped grooves.

[0024] In the above solution, the arc-shaped grooves are for facilitating the cutting when the first positioning block opens the limiting groove, reducing the jumping and error of the cutting tool, thereby improving the processing accuracy of the limiting groove.

[0025] The appearance detection fixture for the battery protection board of the present utility model has the beneficial effects of improving the detection efficiency and ensuring the stability and consistency of the detection level. One end of the battery protection board is integrated with a reinforcing piece and a connector. The heavier end is placed in the positioning groove, and the middle section of the battery protection board is embedded in the limiting groove. Since there are multiple first positioning blocks and multiple pairs of second positioning blocks on the fixture body, multiple battery protection boards can be placed on the fixture body. By flipping the fixture cover to cover the fixture body, clamping of multiple battery protection boards is achieved. In this way, multiple battery protection boards can be stably detected simultaneously, improving the detection efficiency. Moreover, the battery protection boards are accurately positioned, ensuring that the position of each detection is consistent, thereby ensuring the stability and consistency of the detection level. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic diagram of the overall structure of the appearance detection fixture for the battery protection board of an embodiment.

[0027] Figure 2 FIG. is a schematic diagram of the structure of the fixture body of an embodiment.

[0028] Figure 3 FIG. is a schematic diagram of the structure of the fixture cover of an embodiment.

[0029] Figure 4 FIG. is a side view of the appearance detection fixture for the battery protection board of an embodiment.

[0030] REFERENCE NUMERAL DESCRIPTION: 1. Fixture body; 2. Fixture cover; 3. First positioning block; 4. Positioning groove; 5. Second positioning block; 6. Limiting groove; 7. First through hole; 8. Placing part; 9. Second through hole; 10. Limiting structure; 101. Limiting strip; 102. Limiting step; 11. Silicone pad; 12. First gap; 13. Second gap; 14. Groove; 15. Fixing structure; 16. Rotating rod; 17. Rotating shaft; 18. Arc-shaped groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will further describe in detail an appearance detection fixture for a battery protection board of the present utility model in conjunction with specific embodiments and the accompanying drawings.

[0032] As Figure 1 and Figure 2As shown in the figure, in a preferred embodiment, an appearance detection fixture for a battery protection board of the present utility model includes a fixture body 1 and a fixture cover plate 2 that is flip-connected to the fixture body 1. The fixture body 1 is provided with a plurality of first positioning blocks 3 and a plurality of pairs of second positioning blocks 5. The first positioning blocks 3 are provided with positioning grooves 4 with an opening on one side, and a limiting groove 6 is formed between two second positioning blocks 5. The battery protection board can be embedded in the positioning groove 4 and the limiting groove 6. One end of the battery protection board is integrated with a reinforcing piece and a connector. The heavier end is placed in the positioning groove 4, and the middle section of the battery protection board is embedded in the limiting groove 6. Since there are multiple first positioning blocks 3 and multiple pairs of second positioning blocks 5 on the fixture body 1, multiple battery protection boards can be placed on the fixture body 1. By flipping the fixture cover plate 2 to cover the fixture body 1, clamping of multiple battery protection boards is achieved, so that multiple battery protection boards can be stably detected simultaneously, improving the detection efficiency. Moreover, the battery protection board is accurately positioned, ensuring that the position of each detection is consistent, thereby ensuring the stability and consistency of the detection level.

[0033] As Figure 1 and Figure 2 shown, in some embodiments, the fixture body 1 is provided with a plurality of rectangular first through holes 7, so that a placement portion 8 connected to the positioning groove 4 and the limiting groove 6 is formed on the fixture body 1. Providing a plurality of rectangular first through holes 7 on the fixture body 1 can reduce the overall weight of the detection fixture. The first through holes 7 are opened between adjacent pairs of second positioning blocks 5, so that a placement portion 8 is formed on the fixture body 1. The placement portion 8 is used to place and support the battery protection board, reducing the weight without affecting the function of the detection fixture.

[0034] As Figure 1 and Figure 2 shown, in some embodiments, the positioning groove 4, the limiting groove 6 and the placement portion 8 are coated with an electrostatic coating. Since static electricity may accumulate on the battery protection board in the detection fixture, which may cause damage to the tiny components on the battery protection board or generate unnecessary static electricity discharge, the electrostatic coating effectively prevents the accumulation of static electricity, thereby reducing the impact of static electricity on the battery protection board and the fixture and ensuring the product quality.

[0035] As Figure 1 and Figure 3 shown, in some embodiments, the fixture cover plate 2 is provided with a plurality of second through holes 9 corresponding to the first through holes 7, so that a limiting structure 10 is formed on the fixture cover plate 2. The second through holes 9 provided on the fixture cover plate 2 are used to reduce the overall weight of the fixture cover plate 2. The limiting structure 10 formed on the fixture cover plate 2 can limit the battery protection board in the vertical direction, ensuring the position stability of each battery protection board during the detection process and avoiding detection errors caused by displacement.

[0036] As Figure 1and Figure 3 As shown in Figure 3 , in some embodiments, the limiting structure 10 includes a limiting strip 101 and a limiting step 102, and the limiting step 102 and the limiting strip 101 are integrally formed. The limiting step 102 on the limiting strip 101 can be closer to the battery protection board, thereby restricting the displacement of the battery protection board in the vertical direction. The other parts of the limiting strip 101 except the limiting step 102 have a relatively large gap with the battery protection board, which can reduce the overall contact area of the limiting structure 10 with the battery protection board and reduce mechanical damage caused by contact. The design of integrally forming the limiting strip 101 and the limiting step 102 simplifies the production process.

[0037] As Figure 1 and Figure 3 As shown in Figure 3 , in some embodiments, a silica gel pad 11 is attached to the limiting step 102. The silica gel pad 11 has a soft property, which can effectively buffer the contact force between the limiting step 102 and the battery protection board, reduce the damage to the battery protection board caused by mechanical shock and pressure, prevent the limiting step 102 from directly contacting the surface of the battery protection board, thereby avoiding scratching and abrasion, improving the service life of the battery protection board, and also preventing static electricity.

[0038] As Figure 1 and Figure 4 As shown in Figure 4 , in some embodiments, a first gap 12 is formed between the silica gel pad 11 and the fixture body 1, and a second gap 13 is formed between the fixture cover 2 and the second positioning block 5. The silica gel pad 11 can provide sufficient buffering effect, reduce the direct contact pressure of the limiting step 102 on the battery protection board, thereby effectively protecting the battery protection board from mechanical damage. The second gap 13 formed between the fixture cover 2 and the second positioning block 5 is between 0.45 - 0.55 mm. When the battery protection board is accidentally placed on the second positioning block 5 during placement, if there is no second gap 13, the fixture cover 2 will directly press down on the battery protection board and cause damage to the battery protection board. The second gap 13 can prevent the battery protection board from being squeezed or damaged.

[0039] As Figure 3 As shown in Figure 3 , in some embodiments, circular grooves 14 are provided at both ends of the fixture cover 2, and a first magnetic attraction member is embedded in the grooves 14. A second magnetic attraction member is embedded in the fixture body 1 at a position corresponding to the grooves 14. Both the first magnetic attraction member and the second magnetic attraction member can be cylindrical magnets. The magnetic force of the first magnetic attraction member and the second magnetic attraction member can provide a reliable fixing force to ensure that the fixture cover 2 will not loosen or shift during operation, enhancing the stability and safety of the device. Moreover, the first magnetic attraction member and the second magnetic attraction member can automatically align the fixture cover 2 and the fixture body 1 to ensure precise docking between the two, thereby improving the positioning accuracy and consistency of the device.

[0040] As Figure 2As shown, in some embodiments, fixing structures 15 are provided at both ends of the jig body 1. A rotating rod 16 passes through the fixing structures 15, and a rotating shaft 17 is provided on the jig cover plate 2. The rotating shaft 17 is rotatably sleeved on the rotating rod 16. The fixing structures 15 provide a stable support point for the rotating rod 16. The rotating shaft 17 is sleeved on the rotating rod 16, which can ensure that the rotation process of the jig cover plate 2 is smooth, reduce friction and jamming phenomena, and improve the fluency of operation. This design enables the jig cover plate 2 to be opened or closed by rotation, improving the convenience of operation for the operator.

[0041] As Figure 2 shown, in some embodiments, arc-shaped grooves 18 are provided at both ends of the limiting groove 6 on the side away from the opening. The arc-shaped grooves 18 are for facilitating the cutting when the first positioning block 3 opens the limiting groove 6, reducing the jumping and error of the cutting tool, thereby improving the machining accuracy of the limiting groove 6.

[0042] For the working principle and process of a battery protection board appearance detection jig of the present utility model, a plurality of battery protection boards are placed on the jig body 1. The positioning grooves 4 and the limiting grooves 6 can ensure the accurate positioning of the battery protection boards. Then, the jig cover plate 2 is flipped through the cooperation of the rotating shaft 17 and the rotating rod 16, so that the jig cover plate 2 is covered on the jig body 1. The limiting structure 10 corresponds to the placing portion 8. The silica gel pad 11 can contact the battery protection board to play a buffering role and can also ensure the stability of the position of the battery protection board. The first magnetic attraction member and the second magnetic attraction member adsorb to enable the jig cover plate 2 to be adsorbed on the jig body 1.

[0043] In the description of the present utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0045] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "linkage", "fixation", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. An appearance detection fixture for a battery protection board, characterized in that, It includes a fixture body (1) and a fixture cover plate (2) that is flip-connected to the fixture body (1). A number of first positioning blocks (3) and a number of pairs of second positioning blocks (5) are provided on the fixture body (1). A positioning groove (4) with an opening on one side is provided on the first positioning block (3). A limiting groove (6) is formed between the two second positioning blocks (5). The battery protection board can be embedded in the positioning groove (4) and the limiting groove (6).

2. The appearance detection fixture for the battery protection board according to claim 1, wherein A number of rectangular first through holes (7) are formed on the fixture body (1) so that a placement portion (8) connected to the positioning groove (4) and the limiting groove (6) is formed on the fixture body (1).

3. The appearance detection fixture for the battery protection board according to claim 2, characterized in that, An electrostatic coating is applied to the positioning groove (4), the limiting groove (6) and the placement portion (8).

4. The appearance detection jig for the battery protection board according to claim 2, wherein A number of second through holes (9) corresponding to the first through holes (7) are formed on the fixture cover plate (2) so that a limiting structure (10) is formed on the fixture cover plate (2).

5. The appearance detection fixture for the battery protection board according to claim 4, wherein, The limiting structure (10) includes a limiting strip (101) and a limiting step (102), and the limiting step (102) and the limiting strip (101) are integrally formed.

6. The appearance detection fixture for the battery protection board according to claim 5, wherein, A silica gel pad (11) is attached to the limiting step (102).

7. The appearance detection fixture for the battery protection board according to claim 6, characterized in that, A first gap (12) is formed between the silica gel pad (11) and the fixture body (1), and a second gap (13) is formed between the fixture cover plate (2) and the second positioning block (5).

8. The appearance detection fixture for the battery protection board according to claim 1, characterized in that Circular grooves (14) are provided at both ends of the fixture cover plate (2), and first magnetic components are embedded in the grooves (14). Second magnetic components are embedded in the fixture body (1) at positions corresponding to the grooves (14).

9. The appearance detection jig for the battery protection board according to claim 1, wherein, Fixed structures (15) are provided at both ends of the fixture body (1). A rotating rod (16) passes through the fixed structures (15). A rotating shaft (17) is provided on the fixture cover plate (2), and the rotating shaft (17) is rotatably sleeved on the rotating rod (16).

10. The appearance detection fixture for the battery protection board according to claim 1, wherein Arc-shaped grooves (18) are provided at both ends of the limiting groove (6) away from the opening side.