A large-current charging product with secondary locking realized by a key structure
By employing a secondary locking scheme based on a key structure and optimizing the locking tongue by combining the differences between mechanical and electrical signals, the stability and safety issues of traditional charging equipment in complex environments are resolved, achieving intelligent environmental adaptability and safety control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENYANG XINGHUA HWA YICK RAIL-TRAFFIC-ELECTRICAL APPL
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional high-current charging equipment suffers from problems such as loosening, poor contact, increased resistance, and safety hazards in its locking structure design due to environmental factors. Furthermore, it lacks linkage control between the current and the locking state during the charging process, resulting in insufficient stability and safety of the equipment in complex environments.
Secondary locking is achieved through a key structure. By combining the differences in mechanical and electrical signals of key insertion depth and rotation angle, the extension and retraction stroke of the lock tongue and the locking force are optimized. Combined with environmental adaptability adjustment and current threshold setting, charging status prediction and feedback control are realized, forming a closed-loop control logic.
It improves the reliability of charging interface connections, adapts to different environmental conditions, reduces operation and maintenance costs, reduces the risk of equipment failure, and enhances the safety and intelligence of the charging process.
Smart Images

Figure CN121012168B_ABST