Welding process and battery device
By employing a double-rivet resistance welding process that involves two rivets passing through the workpiece and forming a current loop, the problems of weak joint strength and low efficiency of dissimilar materials are solved, achieving efficient and reliable welding results and extending the service life of the battery device.
CN122099532APending Publication Date: 2026-05-29CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2024-11-29
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
The physical property differences between dissimilar materials make it impossible to connect them effectively. Existing riveting techniques have weak connection strength and low welding efficiency.
Method used
The double-rivet resistance welding process is adopted, which involves passing at least two rivets through the workpiece and forming a current loop between the rivets and the base workpiece. The mechanical-solid dual connection is achieved by resistance heating, and the connection reliability and welding efficiency are improved by electrophoresis treatment.
Benefits of technology
It improves welding efficiency and connection strength, extends the service life of battery devices, and enhances resistance to oxidation and corrosion.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122099532A_ABST
Abstract
The application relates to a welding process and a battery device, which comprises the following steps: penetrating at least two rivets on a welding workpiece, the welding workpiece being provided with a plurality of mounting holes; the rivets are in interference fit with the mounting holes; a rubber ring is arranged between the rivets and the welding workpiece; the welding workpiece is attached to a base material workpiece; two welding guns are respectively abutted against the rivets and are in contact with the base material workpiece; a current loop is formed between one of the welding guns, one of the rivets, the base material workpiece, the other rivet and the other welding gun; the current loop is powered according to preset process parameters, so that the two rivets are respectively fused with the base material workpiece; and the rivets, the welding workpiece and the base material workpiece are subjected to electrophoresis treatment. The welding process and the battery device have the advantages of high welding efficiency.
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