| 摘要 |
<p>The present invention relates to a solenoid actuator, which includes: a bobbin wound with a coil; an electronic coil for making the bobbin in an electromagnetic state; a plunger which can reciprocate across the bobbin; first and second permanent magnets which move the plunger in opposite directions to each other according to the polarity of a current applied to the electronic coil; first and second elastic members which restore the plunger in opposite directions to each other when the current flowing along the electronic coil is blocked; and a control unit which inverts the polarity of the current applied to the electronic coil. Control on three positions or bidirectional control can be conducted while current consumption is minimized.</p> |
