MAGNETIC ACTUATOR

摘要

A magnetic actuator includes: a movable unit, movable between a first position and a second position, and including an integrally formed eddy-current component and first magnet yoke component; a second magnet yoke component to form a magnetic circuit with the first magnet yoke component; an electromagnetic coil capable of generating an exciting magnetic field when being energized, magnetic lines generated thereby being energized penetrating the magnetic circuit formed by the first and second magnet yoke components; an eddy-current coil to enable an eddy current to be generated in the eddy-current component, to produce an electromagnetic repulsive force to the movable unit; and a permanent magnetic holding component to hold the movable unit in the first position or the second position. The magnetic actuator can simplify the actuator, reduce the number of components and the size thereof, as well as reducing the energy consumption and improving the stability thereof.

主权项

1. A magnetic actuator, comprising:
a movable unit, movable between a first position and a second position, the movable unit including an integrally formed eddy-current component and a first magnet yoke component; a second magnet yoke component to form a magnetic circuit with the first magnet yoke component; an electromagnetic coil to generate an exciting magnetic field when being energized, with magnetic lines generated by the electromagnetic coil being energized penetrating the magnetic circuit formed by the second magnet yoke component and the first magnet yoke component; an eddy-current coil arranged opposite to the eddy-current component and configured to enable an eddy current to be generated in the eddy-current component, so as to produce an electromagnetic repulsive force to the movable unit; and a permanent magnetic holding component to hold the movable unit in the first position or the second position.