electromagnetic actuator with core with low aspect ratio

摘要

The actuator (10) comprises a stator (12) having two parallel channels (13A,13B) formed in it. The length of the stator is at least 1.6 times the width (W) and where the width is at least 2.0 times the height. The channels are coaxial with the length. A coil (14) is adapted to engage the channels for inducing a magnetic field in the stator upon application of an electrical current into the coil. An armature (16) is hinged to the stator to contact the stator upon application of the electrical current and to swing away from the stator upon removal of the electrical current. A pair of hinge pins (18B) are positioned at first and second ends of the stator, and rotatably support the armature. The armature extends beyond the stator to form an armature extension (20) for contacting and actuating a latchable rocker arm.