| 摘要 |
The relay has a ferromagnetic core surrounded by an excitation coil, a ferromagnetic reverse-flow yoke, and a flap armature hinged on the yoke and consisting of ferromagnetic material, at least partly. These parts form a magnetic circuit with an air gap, on the armature repulsed. The core (22) has a magnetically remanent part (24) which is not magnetised by the excitation coil (21). This core part (24) lies opposite the permanent magnetic (16) of the magnetic shunt circuit (40) with the flat armature (30) repulsed. In this position opposite poles face each other. With the armature attached identical poles face each other. |
