Patent ID: 9214267
Filing Date: 2015-12-15
Classification: H01F

Abstract:
1. An electromagnetic actuator device, comprising a coil unit, which surrounds a first yoke section of a stationary yoke unit and is activated by energizing the coil unit, and an armature unit, which is guided so as to be movable relative to the stationary yoke unit and which performs an actuating movement, the armature unit interacts with at least one second yoke section of the yoke unit to form an air gap lying outside of the first yoke section for a magnetic flux produced by the coil unit when activated, a permanent magnetic unit connected magnetically in parallel to the coil unit such that a permanent magnetic flux of the permanent magnetic unit can pass through the first yoke section, wherein the permanent magnetic unit is magnetically in parallel with the at least one second yoke section, and the armature unit is positioned between the permanent magnetic unit and at least a portion of the coil unit, a coil magnetic flux of the coil unit flowing across the air gap is overlaid in a magnetically parallel and/or equally directed orientation in the same direction is superposed in a manner with a permanent magnet flux of the permanent magnetic unit flowing across the air gap, and the activated coil unit causes at least a partial magnetic flux shift comprising a magnetic flux displacement of the permanent magnetic flux of the permanent magnetic unit from the first yoke section into the second yoke section.