Battery case helium detection mechanism
By designing a helium detection mechanism for the battery casing, and using a floating filler block and sealing ring structure to limit the deformation of the battery casing, effective sealing of the battery casing is achieved, solving the problem of sealing failure in the airtightness test of the battery casing and reducing the false positive rate.
CN122171122APending Publication Date: 2026-06-09UNITED WINNERS LASER CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- UNITED WINNERS LASER CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing battery casings are prone to deformation during airtightness testing, leading to seal failure and a high false positive rate.
Method used
A battery casing helium detection mechanism was designed, including an upper cavity assembly and a lower cavity assembly. It utilizes a floating filler block and a sealing ring structure. The floating filler block restricts deformation within the battery casing through its supporting effect, and achieves effective sealing through longitudinal and circumferential sealing parts.
Benefits of technology
It effectively reduces the probability of seal failure at the opening of the battery casing, improves the accuracy of helium detection, and reduces the false positive rate.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122171122A_ABST
Abstract
The application provides a battery shell helium detection mechanism, which comprises a detection upper cabin and a detection lower cabin, the detection upper cabin is provided with a detection groove, the detection lower cabin is provided with a helium injection groove, the inner side of the bottom of the helium injection groove is provided with a floating filling block and a main sealing ring, the main sealing ring comprises a longitudinal sealing part and a circumferential sealing part which are connected with each other, the circumferential sealing part is at least partially in the battery shell, during the process that the helium detection mechanism is switched from a non-detection state to a detection state, the battery shell can drive the floating filling block to move towards the bottom of the detection lower cabin, the open end of the battery shell can abut against the longitudinal sealing part, and the floating filling block can act on the circumferential sealing part to make the circumferential sealing part abut against the inner wall of the battery shell. When the application is used, the probability of deformation of the battery shell, especially the open end of the battery shell, can be effectively reduced, the sealing of the open end of the battery shell is safe and reliable, and the helium detection error killing rate can be effectively reduced.
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