公开(公告)号：US09613741B2

公开(公告)日：2017-04-04

申请号：US14603860

申请日：2015-01-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Oui-serg Kim ,  Sang-hoon Kim ,  Hyo-soo Kim ,  Kun-bum Park ,  Jong-Ho Park ,  Young-hwan Yoon ,  Jeong-sik Choi

IPC: H01F7/13 ,  H01F7/20

CPC classification number: H01F7/206 ,  H01F2007/208

Abstract: An electromagnetic actuator includes a first body which includes a biased permanent magnet, a magnetic path control device which is disposed to adjust a magnetic path produced by the biased permanent magnet, at least one core which is disposed to face the biased permanent magnet and the magnetic path control device, and a coil which is wound on the at least one core so as to reinforce or cancel the magnetic path produced by the biased permanent magnet; and a second body which is separated from the biased permanent magnet and the magnetic path control device when the at least one core is between the second body and at least one of the biased permanent magnet and the magnetic path control device.