Battery cover plate for enhancing voltage resistance of post terminal
By setting a skirt ring around the outer periphery of the terminal post and clamping it with a plastic ring to form an integrated structure, the problem of poor pressure resistance of the terminal post is solved, and the performance and service life of the battery cover are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LEEHOM PRECISION TECH CO LTD
- Filing Date
- 2025-04-01
- Publication Date
- 2026-05-08
AI Technical Summary
In existing battery covers, the terminals have poor pressure resistance and are easily damaged, affecting the performance and lifespan of the battery cover.
A skirt ring is set on the outer periphery of the pole, and a plastic ring is used to clamp the skirt ring from the top and bottom to form an integrated structure. The plastic ring and the skirt ring are combined into one piece, and the bonding force is improved by integral injection molding, which enhances the pressure resistance of the pole.
It improved the pressure resistance of the terminals, enhanced the performance and lifespan of the battery cover, and increased the product yield.
Smart Images

Figure CN224217580U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to the technical field of battery cover plates, and more specifically, to battery cover plates that enhance the voltage resistance of terminals. Background Technology
[0002] The battery cover is an important component of the battery. It covers the top opening of the outer casing and forms a cavity between the cover and the casing to house the battery cells. The battery cover includes a top cover plate, through which terminal posts are inserted.
[0003] In the existing technology, during the assembly of the battery cover, the terminals need to be riveted. The terminals need to withstand a large pressure, but the terminals have poor pressure resistance and are easily damaged, which reduces the performance and service life of the battery cover. Utility Model Content
[0004] The purpose of this invention is to provide a battery cover that enhances the voltage resistance of the terminals, thereby solving the problem of poor voltage resistance of the terminals in the prior art.
[0005] This utility model is implemented as follows: a battery cover plate for enhancing the voltage resistance of the terminal post includes a terminal post, the outer periphery of which has a skirt ring, the skirt ring is arranged around the circumference of the terminal post, the skirt ring is wrapped with a plastic ring, the plastic ring is arranged around the circumference of the skirt ring; the plastic ring clamps the skirt ring from above and below, and is integrated with the skirt ring.
[0006] Furthermore, the plastic ring has a lower ring that holds the skirt ring from bottom to top, the lower ring being arranged around the circumference of the skirt ring, and the bottom of the lower ring being flush with the bottom of the pole post.
[0007] Furthermore, the bottom of the pole post has a grooved ring, which is arranged around the circumference of the pole post, and the lower ring is embedded and fixed in the grooved ring.
[0008] Furthermore, the plastic ring has an upper ring that clamps the skirt ring from top to bottom. The upper ring is arranged around the circumference of the skirt ring, and the upper ring and the lower ring clamp the skirt ring from top to bottom and are fixedly connected to the skirt ring as a whole.
[0009] Furthermore, the plastic ring has an outer peripheral ring that surrounds the outer periphery of the skirt ring, and the outer peripheral ring is arranged around the circumference of the skirt ring.
[0010] Furthermore, the upper end of the outer circumferential ring is connected to the upper ring, and the lower end of the outer circumferential ring is connected to the lower ring.
[0011] Furthermore, the upper ring, outer ring, and lower ring are integrally injection molded.
[0012] Furthermore, the thickness of the upper ring is greater than the thickness of the lower ring, and the width of the upper ring is greater than the width of the lower ring.
[0013] Furthermore, the outer circumferential ring has multiple upward-opening steps arranged around it at circumferential intervals.
[0014] Furthermore, a protruding post is formed facing downwards in the grooved ring, and a spiral groove is formed on the outer periphery of the protruding post. The spiral groove is arranged spirally along the axial direction of the protruding post. The lower ring wraps around the entire protruding post and is embedded in the spiral groove, thus forming a whole with the protruding post.
[0015] Compared with the prior art, the battery cover plate with enhanced terminal pressure resistance provided by this utility model has a plastic ring holding the skirt ring on the top and bottom, which enhances the bonding force between the plastic ring and the terminal. Secondly, when the battery cover plate is assembled and the terminal is riveted, the plastic ring can withstand part of the riveting pressure, which improves the terminal's pressure resistance and water resistance test capability, and greatly improves the performance, service life and product yield of the battery cover plate. Attached Figure Description
[0016] Figure 1 This is a partial cross-sectional schematic diagram of the battery cover plate for enhancing the voltage resistance of the terminal posts provided by this utility model;
[0017] Figure 2 This is a partial cross-sectional schematic diagram of the skirt ring provided by this utility model. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0019] The implementation of this utility model will be described in detail below with reference to specific embodiments.
[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0021] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.
[0022] A battery cover for enhancing the voltage resistance of the terminal post includes a terminal post 100. The outer periphery of the terminal post 100 has a skirt ring 101, which is arranged around the circumference of the terminal post 100. The skirt ring 101 wraps around a plastic ring 200, which is arranged around the circumference of the skirt ring 101. The plastic ring 200 holds the skirt ring 101 from above and below, and is integrated with the skirt ring 101.
[0023] The aforementioned battery cover plate for enhancing the voltage resistance of the terminal post has a plastic ring 200 clamping the skirt ring 101 on both sides, which enhances the bonding force between the plastic ring 200 and the terminal post 100. Secondly, during the assembly process of the battery cover plate, when the terminal post 100 is riveted, the plastic ring 200 can withstand part of the riveting pressure, thereby improving the voltage resistance of the terminal post 100 and its resistance to water pressure tests. This greatly improves the performance, service life, and product yield of the battery cover plate.
[0024] In this embodiment, the plastic ring 200 has a lower ring 202 that clamps the skirt ring 101 from bottom to top. The lower ring 202 is arranged around the circumference of the skirt ring 101, and the bottom of the lower ring 202 is flush with the bottom of the pole post 100. In this way, when the plastic ring 200 and the skirt ring 101 are integrated, it is convenient to position the pole post 100 during the riveting process, and the plastic ring 200 can bear part of the riveting pressure of the pole post 100.
[0025] In this embodiment, the bottom of the pole post 100 has a grooved ring 102, which is arranged around the circumference of the pole post 100, and the lower ring 202 is embedded and fixed in the grooved ring 102. In this way, the connection between the plastic ring 200 and the skirt ring 101 can be more stable.
[0026] In this embodiment, the plastic ring 200 has an upper ring 201 that clamps the skirt ring 101 from top to bottom. The upper ring 201 is arranged around the circumference of the skirt ring 101. The upper ring 201 and the lower ring 202 clamp the skirt ring 101 from top to bottom and are fixedly connected to the skirt ring 101 as a whole. The upper ring 201 and the lower ring 202 clamp the skirt ring 101 from top to bottom, which makes the connection between the plastic ring 200 and the skirt ring 101 more stable.
[0027] In this embodiment, the plastic ring 200 has an outer peripheral ring 203 that surrounds the outer periphery of the skirt ring 101, and the outer peripheral ring 203 is arranged around the circumference of the skirt ring 101. In this way, the upper ring 201, the lower ring 202, and the outer peripheral ring 203 can achieve a surrounding wrapping of the skirt ring 101.
[0028] In this embodiment, the upper end of the outer circumferential ring 203 is connected to the upper ring 201, and the lower end of the outer circumferential ring 203 is connected to the lower ring 202. In this way, the overall structure of the plastic ring 200 has better integrity.
[0029] In this embodiment, the upper ring 201, the outer peripheral ring 203, and the lower ring 202 are integrally injection molded, which facilitates the molding of the plastic ring 200 and makes the connection between the molded plastic ring 200 and the skirt ring 101 more stable.
[0030] In this embodiment, the thickness of the upper ring 201 is greater than the thickness of the lower ring 202, and the width of the upper ring 201 is greater than the width of the lower ring 202.
[0031] In this embodiment, a plurality of upwardly open steps 204 are formed on the outer peripheral ring 203, and the plurality of steps 204 are arranged at intervals around the circumference of the outer peripheral ring 203. In this way, after the pole post 100 is assembled in the top cover plate, and the upper plastic part is subsequently injection molded in the top cover plate, the upper plastic part can be embedded in the plurality of steps 204 of the plastic ring 200, so that the combination between the upper plastic part and the plastic ring 200 is more stable, and the anti-rotation capability of the pole post 100 in the top cover plate is greatly improved.
[0032] In this embodiment, a protruding post 103 is formed with the grooved ring 102 facing downward, and a spiral groove 104 is formed on the outer periphery of the protruding post 103. The spiral groove 104 is spirally arranged along the axial direction of the protruding post 103. The lower ring 202 wraps around the entire protruding post 103 and is embedded in the spiral groove 104, and is integrated with the protruding post 103.
[0033] In this way, by forming a protruding post 103 and having the lower ring 202 wrap around the protruding post 103, the lower ring 202 is more securely embedded in the grooved ring 102, and the plastic ring 200 is also more securely integrated with the pole post 100.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A battery cover plate for enhancing the voltage resistance of the terminal posts, characterized in that, It includes an electrode post, the outer periphery of which has a skirt ring, the skirt ring is arranged around the circumference of the electrode post, the skirt ring is wrapped with a plastic ring, the plastic ring is arranged around the circumference of the skirt ring; the plastic ring clamps the skirt ring from above and below, and is integrated with the skirt ring.
2. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in claim 1, characterized in that, The plastic ring has a lower ring that holds the skirt ring from bottom to top. The lower ring is arranged around the circumference of the skirt ring, and the bottom of the lower ring is flush with the bottom of the pole post.
3. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in claim 2, characterized in that, The bottom of the pole post has a grooved ring, which is arranged around the circumference of the pole post, and the lower ring is embedded and fixed in the grooved ring.
4. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in claim 3, characterized in that, The plastic ring has an upper ring that clamps the skirt ring from top to bottom. The upper ring is arranged around the circumference of the skirt ring. The upper ring and the lower ring clamp the skirt ring from top to bottom and are fixedly connected to the skirt ring as one unit.
5. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in claim 4, characterized in that, The plastic ring has an outer circumferential ring that surrounds the outer periphery of the skirt ring, and the outer circumferential ring is arranged around the skirt ring in a circumferential direction.
6. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in claim 5, characterized in that, The upper end of the outer circumferential ring is connected to the upper ring, and the lower end of the outer circumferential ring is connected to the lower ring.
7. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in claim 6, characterized in that, The upper ring, outer ring, and lower ring are integrally injection molded.
8. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in any one of claims 4 to 7, characterized in that, The thickness of the upper ring is greater than the thickness of the lower ring, and the width of the upper ring is greater than the width of the lower ring.
9. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in any one of claims 5 to 7, characterized in that, The outer circumference ring has multiple upward-opening steps arranged around it at intervals along the circumference of the outer circumference ring.
10. The battery cover plate for enhancing the voltage resistance of the terminal posts as described in any one of claims 3 to 7, characterized in that, The grooved ring has a downward-facing protrusion, and a spiral groove is formed on the outer periphery of the protrusion. The spiral groove is arranged spirally along the axial direction of the protrusion. The lower ring wraps around the entire protrusion and is embedded in the spiral groove, thus forming a single unit with the protrusion.