Patent ID: 8279027
Filing Date: 2012-10-02
Classification: H01F,H01H

Abstract:
1. A magnetic latching actuator, comprising: a first stationary permanent magnet positioned to create a first magnetic field having a first polarity; a second stationary permanent magnet positioned relative to the first permanent magnet to create a second magnetic field having a second polarity opposite the first polarity; a magnet housing that receives and retains the first and second permanent magnets; a yoke positioned to surround at least a portion of the magnetic housing and movable relative to the first and second permanent magnets between a first position and a second position, wherein the yoke is held in the first position by the first magnet and is held in the second position by the second magnet; and an actuation coil surrounding both the first and second permanent magnets and contained within the magnetic housing, wherein the actuation coil is operable to generate an actuation magnetic field that creates a actuation force in either a first direction or an opposite, second direction to cause the yoke to move between the first and second positions.