ELECTROMAGNETIC ACTUATOR

The present disclosure provides an electromagnetic actuator (30) that drives an armature (33) by an electromagnetic force. The electromagnetic actuator (30) includes a stator (82), a coil (81), and aninsulator (84). The stator (82) is formed of a magnetic material and has a cylindrical portion. The coil (81) is disposed outside of the stator (82). The coil (81) generates a magnetic field when being energized. The insulator (84) is disposed in a particular region of the stator (82) facing the coil (81) in a radial direction. The insulator (84) extends partially along the stator (82) in a circumferential direction and suppresses a current flowing through the stator (82) in the circumferential direction. The stator (82) is continuously formed entirely along the circumferential direction by the magnetic material. 本发明提出了种电磁致动器(30)，其通过电磁力驱动电枢(33)。该电磁致动器包括定子(82)、线圈(81)和绝缘体(84)。定子(82)由磁性材料制成并具有筒形部。线圈(81)设置在定子外部。线圈(81)被通电时产生磁场。绝缘体(84)设置在定子(82)沿径向面向线圈(81)的特定区域中。绝缘体(84)沿周向局部沿着定子(82)延伸，并且抑制电流沿周向流经定子(82)。定子(82)完整地沿着圆周方向由磁