| 摘要 |
A rotary electromagnet is comprised of a core, a coil, a rotary armature and a return spring. The rotary armature is supported on the core by a rotating shaft. The end surfaces of the rotary armature are convex curved, and the side surfaces of core corresponding to the armature are concave curved. There is a constant gap between the two opposite curved surfaces, the initial position of the rotary armature is at a meeting point of the two opposite curved surfaces. |
