一种电池极柱的封装结构
By optimizing the double-layer sealing ring design and the Z-shaped structure, the problems of high assembly difficulty and insufficient sealing reliability caused by the large number of sealing rings in battery terminal packaging are solved, achieving efficient sealing and low-cost battery packaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CHEHEJIA AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing battery terminal packaging structure, the excessive number of sealing rings leads to assembly difficulties and insufficient sealing reliability.
The design employs a double-layer sealing ring, requiring only one sealing ring per pole. The first sealing part is located between the inner electrode plate and the aluminum sheet, while the second sealing part is located between the pole and the inner electrode plate. Combined with the Z-shaped structure and the inclined sealing gap, the sealing effect and assembly convenience are optimized.
It reduces assembly difficulty, improves sealing reliability, avoids electrolyte leakage caused by weld cracking, and enhances battery packaging reliability and current transmission efficiency.
Smart Images
Figure CN224519999U_ABST
Abstract
Claims
1. A battery pole packing structure, characterized by, include: The cover plate and the inner electrode plate, wherein the cover plate includes an electrode post, a light aluminum sheet and a sealing ring, and the sealing ring includes a first sealing part and a second sealing part; The first sealing part is located between the inner electrode plate and the light aluminum sheet, and the second sealing part is located between the electrode post and the inner electrode plate; the light aluminum sheet is provided with an opening corresponding to the electrode post, and the inner electrode plate is provided with a countersunk structure and / or a flanged step structure corresponding to the opening.
2. The battery post packaging structure of claim 1, wherein, The pole post is provided with a pole post step near the flange step, and the flange step of the inner pole plate is nested and matched with the pole post.
3. The battery post packaging structure of claim 2, wherein, The sealing ring has a Z-shaped cross-section, and the second sealing part is located between the pole step and the flange step.
4. The battery post packaging structure of claim 2, wherein, An assembly gap is provided between the second sealing part and the pole post and the flange step.
5. The battery post packaging structure of any one of claims 1-4, wherein, The compression ratio of the first sealing part is greater than or equal to the compression ratio of the second sealing part, wherein the compression ratio is the ratio of the thickness of the corresponding sealing part after compression to its thickness before compression.
6. The battery post packaging structure of claim 1, wherein, The pole post is provided with a pole post step near the sinking platform structure, and the sinking platform structure fits into the pole post step.
7. The battery post packaging structure of claim 6, wherein, The second sealing part is located between the pole step and the sinking platform structure.
8. The battery post packaging structure of any one of claims 1-4, wherein, A sealing gap is provided between the electrode post and the inner electrode plate, and the extension direction of the sealing gap is inclined to the vertical direction of the electrode post.
9. The battery post packaging structure of any one of claims 1-4, wherein, The second sealing part is located in the vertical or horizontal assembly gap between the pole post and the inner pole plate.
10. The battery post packaging structure of claim 2 or 6, wherein, The inner electrode plate is provided with a convex hull structure, and the convex side of the convex hull structure is the side of the inner electrode plate closest to the electrode post. The convex hull structure is nested in conjunction with the electrode post step.