Electromagnet with position self-holding double coil and electric interlocking
By designing a position-holding double-coil electromagnet with electrical interlock, the problems of unidirectional thrust, high power consumption, and safety hazards caused by continuous energization of single-coil electromagnets in hydraulic valves were solved, realizing a bidirectional position-holding, low power consumption, long life, and high reliability electromagnet.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIUJIANG BRANCH OF THE 707 RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing electromagnets in hydraulic valves have problems such as unidirectional thrust, high power consumption due to continuous energization, heat generation, short service life, and safety hazards, which cannot be effectively solved, especially when bidirectional position self-holding is required.
Design a position-holding dual-coil electromagnet with electrical interlock. By combining the left and right coil assemblies with electrical interlock and mechanical self-holding structure, bidirectional thrust can be achieved without continuous energization. The position is maintained by the elastic seat, and the integrated structure simplifies the design.
It achieves bidirectional position self-holding, reduces power consumption, avoids coil overheating, improves service life and reliability, eliminates safety hazards from accidental power outages, and simplifies installation and maintenance.
Smart Images

Figure CN122417606A_ABST