Electric circuit-breaker triggering device for use in trigger type electromagnetic device, has flexible component recovering trigger spring, and extending and contracting based on displacement of projection of plunger

摘要

The device has a plunger (6) projecting in a preset direction, and a stator (10) disposed opposite to the plunger. A trigger spring (8) pushes a slider (9) in projection direction of the plunger. A yoke (3) has a magnetic circuit to provide magnetic flux from a permanent magnet (5) so that the flux traverses the plunger and the stator. An electromagnet forms an inverse magnetic filed opposite to magnetic field produced by the magnet. A product mould is used as a flexible component (12) that recovers the spring, and extends and contracts based on displacement of the projection of the plunger.