| 摘要 |
<p>The purpose of the present invention is to provide an electromagnetic force driving device capable of reducing size and weight by coupling a magnetic material and a coil unit through a connection pin therein, and easily changing electromagnetic performance and holding force by independently forming a driving passage. The electromagnetic force driving device comprises: a housing including a first housing having an open upper part and having a groove part in a longitudinal direction, a second housing installed on a lower part of the first housing, a third housing installed on a lower part of the second housing, and a partition wall separating first and second housings; a first operator installed on an upper part of the first housing to be vertically moved; a coil unit installed on a lower part of the second housing and moved by repulsive force in at least one among vertical and horizontal directions according to a direction of normally or reversely supplied current; a second operator having one side coupled with the coil unit and the other side connected with the first operator to penetrate the partition wall and operating the first operator according to the movement of the coil unit; an upper magnet installed on the first housing and providing magnetic force so that the first operator maintains a predetermined position; and a lower magnet arranged in the second housing in parallel and forming a magnetic field in the coil unit. Therefore, the electromagnetic force driving device quickly performs isolation when a distribution line or a transmission line is defective, reduces the entire weight and size by simplifying a structure of circuit breaker, and easily changes electromagnetic performance and holding force.</p> |
