Battery restraining device

By employing a clamping method combining a clamping seat and an airbag in the battery formation system, and by placing a sealing gasket with an outer diameter larger than the airbag between the airbag and the mounting surface, the problem of poor clamping and pressure application effect was solved, achieving stable clamping and sealing, and improving the quality of battery formation.

CN224519902UActive Publication Date: 2026-07-17CALB GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CALB GROUP CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing battery formation systems, the clamping and pressure effects are not ideal, resulting in unsatisfactory SEI film formation quality and formation effect. Furthermore, the sealing and expansion consistency of the airbag affect the clamping effect.

Method used

At least two clamping seats are used. One side of the clamping seat is provided with a clamping surface and the other side is provided with a mounting surface. An airbag is provided on the mounting surface. A clamping space is formed between the clamping seats. When the airbag inflates, it clamps and applies pressure. At the same time, a first sealing gasket is provided between the airbag and the mounting surface. The outer diameter of the sealing gasket is larger than the outer diameter of the airbag to improve the sealing performance.

Benefits of technology

It achieves stable clamping and reliable pressure on the battery, reduces damage, improves the airbag's sealing and clamping stability, promotes the discharge of formation gases, and enhances the battery formation effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224519902U_ABST
    Figure CN224519902U_ABST
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Abstract

The utility model relates to battery processing technical field discloses a battery restraint device. Wherein battery restraint device includes at least two clamping seat, gasbag, fixing spare and first sealing washer, and one side of clamping seat is provided with installation surface, and the other side is provided with clamping surface, gasbag is set up in installation surface through fixing spare, and the clamping space is formed between gasbag and the clamping surface of adjacent clamping seat, and first sealing washer is arranged between gasbag and installation surface, and the outer diameter of first sealing washer is greater than the outer diameter of gasbag. The utility model discloses battery restraint device, can realize more stable and reliable clamping and pressure application to battery, is favorable to the formation of battery.
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Claims

1. A battery restraint device, characterized in that, include: At least two clamping seats (100), one side of each clamping seat (100) is provided with a mounting surface (101) and the other side is provided with a clamping surface; An airbag (200) and a fixing member (300) are provided on the mounting surface (101) via the fixing member (300), and a clamping space is formed between the airbag (200) and the clamping surface of the adjacent clamping seat (100); A first sealing gasket (410) is provided between the airbag (200) and the mounting surface (101), and the outer diameter of the first sealing gasket (410) is larger than the outer diameter of the airbag (200).

2. The battery restraining device of claim 1, wherein, The outer edge of the first sealing gasket (410) extends from the outer edge of the airbag (200) by a distance of 2mm-6mm.

3. The battery restraining device of claim 1, wherein, The airbag (200) includes an expansion portion (210) and a circumferential mounting portion (220) disposed on the expansion portion (210). The first sealing gasket (410) is annular and located between the mounting portion (220) and the mounting surface (101). The outer diameter of the first sealing gasket (410) is larger than the outer diameter of the mounting portion (220).

4. The battery restraining device of claim 1, wherein, The first sealing gasket (410) has the same shape as the airbag (200).

5. The battery restraining device of claim 1, wherein, A second sealing gasket (420) is provided between the airbag (200) and the fixing member (300), wherein the outer diameter of the first sealing gasket (410) is larger than the outer diameter of the second sealing gasket (420).

6. The battery restraining device of claim 5, wherein, The outer diameter of the second sealing gasket (420) is larger than the outer diameter of the fastener (300).

7. The battery restraining device of claim 5, wherein, The airbag (200) includes an inflatable portion (210) and a circumferential mounting portion (220) disposed on the inflatable portion (210). The second sealing gasket (420) and the fixing member (300) are both annular. The second sealing gasket (420) is disposed between the mounting portion (220) and the fixing member (300). The inner diameter of the second sealing gasket (420) is larger than the outer diameter of the mounting portion (220) and smaller than the inner diameter of the fixing member (300).

8. The battery restraining device of any one of claims 1-7, wherein, The mounting surface (101) is provided with a mounting groove (110), and the first sealing gasket (410) is located in the mounting groove (110).

9. The battery restraining device of claim 8, wherein, The depth of the mounting groove (110) is greater than the minimum thickness of the first sealing gasket (410).

10. The battery restraining device of any one of claims 1-7, wherein, The battery restraint device also includes a connector. The fixing member (300) is provided with at least two mounting holes (320). The connector can pass through the mounting holes (320) and the first sealing gasket (410) to connect with the clamping seat (100).