公开(公告)号：US06833639B2

公开(公告)日：2004-12-21

申请号：US10326116

申请日：2002-12-23

申请人： Collins Yu Cheong Lau ,  Kang Wah Cheung

发明人： Collins Yu Cheong Lau ,  Kang Wah Cheung

IPC分类号： H02K3304

CPC分类号： H02K33/16 ,  A61C17/3418 ,  H02K5/22 ,  H02K11/33

摘要： An electric actuator for providing an angular reciprocating drive, comprising a casing, a stator housed in the casing, and an armature extending co-axially through the stator. The stator has an annular arrangement of poles and a coil for energization by an alternating current to magnetise the poles in opposite polarities as between adjacent poles. The armature has a shaft supported by the casing for angular movement and a plurality of permanent magnets mounted fast on and around the shaft. The magnets have proximal sides as between adjacent magnets of opposite polarities, wherein upon repeated reversals of said alternating current the magnets interact magnetically with the poles to cause the shaft to oscillate thereby providing said drive.

摘要翻译： 一种用于提供角度往复运动的电致动器，包括壳体，容纳在壳体中的定子以及同轴地延伸穿过定子的衔铁。 定子具有环形结构的极和用于通过交流电激励的线圈，以相邻极性之间的相反极性磁化磁极。 衔铁具有由壳体支撑用于角运动的轴和安装在轴上和周围的多个永磁体。 磁体具有相邻极性的相邻磁体之间的近侧，其中在重复反转所述交流电流时，磁体与磁极相互作用，从而使轴振动从而提供所述驱动。