Patent ID: 9218931
Filing Date: 2015-12-22
Classification: H01F,H01H

Abstract:
1. An electromagnetic force driving device comprising: a housing including a first housing in which a first mover is installed, a second housing in which a coil unit is installed, a third housing installed on a bottom surface of the second housing, and a fourth housing for partitioning the first housing and the second housings; a first mover installed on a top of the first housing to be movable in a vertical direction; a coil unit installed in parallel to the second housing to move either upwards or downwards by a repulsive force according to a direction of current supplied in a forward direction or a reverse direction; a second mover, one end of which is combined with the coil unit, and the other end of which passes through the fourth housing to be connected to the first mover, to operate the first mover according to a movement of the coil unit; an upper magnet installed in the first housing to be tightly attached to the first mover to provide a magnetic force for the first mover to maintain either a top dead point or a bottom dead point; and a lower magnet installed in the second housing to form a magnetic field using the coil unit.