PERMANENT MAGNET OPERATING DEVICE

摘要

The disclosure relates to a permanent magnet actuator comprising: a stator iron core having a space therein-side, and having a first wall and a second wall opposing the first wall; a movable element moving reciprocally between the first wall and the second wall, along a moving axis which connects the first wall and the second wall inside the space; a first magnetomotive force supplying body and a second magnetomotive force supplying body disposed respectively on the first wall and the second wall, so as to supply a magnetomotive force to the movable element for the reciprocal movement thereof, wherein, at least one of the first magnetomotive force supplying body and the second magnetomotive force supplying body selectively produces a bidirectional magnetomotive force; a permanent magnet disposed between the first magnetomotive force supplying body and the second magnetomotive force supplying body, and providing a coercive force to the movable element for maintaining the state thereof; and a driving circuit comprising a control unit for controlling a voltage or current that is supplied to the first magnetomotive force supplying body and the second magnetomotive force supplying body.

主权项

1. A permanent magnet actuator comprising:
a stator iron core having a first wall and a second wall which faces the first wall to define a space therein; a movable element which is positioned in the space to reciprocate between the first wall and the second wall along a moving axis connecting the first wall and the second wall; a first magnetomotive force supplying body and a second magnetomotive force supplying body each of which are located on a first wall side and a second wall side in the space so as to provide a magnetomotive force to the movable element for reciprocating the same, wherein at least one of the first magnetomotive force supplying body and the second magnetomotive force supplying body is configured to selectively generate a bidirectional magnetomotive force; a permanent magnet which is disposed between the first magnetomotive force supplying body and the second magnetomotive force supplying body to provide a coercive force to the movable element for maintaining a state thereof; and a driving circuit which comprises a control unit configured to control a voltage or a current supplied to the first magnetomotive force supplying body and the second magnetomotive force supplying body.