公开(公告)号：US20180115210A1

公开(公告)日：2018-04-26

申请号：US15595146

申请日：2017-05-15

Applicant: DENSO CORPORATION

Inventor： Kazuya SASSA ,  Naofumi ADACHI ,  Shingo KITANI

IPC: H02K3/30 ,  H02K33/02 ,  H02K1/34 ,  H02K3/28

CPC classification number: H02K3/30 ,  H01F7/1638 ,  H01F2007/1676 ,  H02K1/34 ,  H02K3/28 ,  H02K33/02

Abstract: The present disclosure provides an electromagnetic actuator that drives an armature by an electromagnetic force. The electromagnetic actuator includes a stator, a coil, and an insulator. The stator is formed of a magnetic material and has a cylindrical portion. The coil is disposed outside of the stator. The coil generates a magnetic field when being energized. The insulator is disposed in a particular region of the stator facing the coil in a radial direction. The insulator extends partially along the stator in a circumferential direction and suppresses a current flowing through the stator in the circumferential direction. The stator is continuously formed entirely along the circumferential direction by the magnetic material.