发明申请
- 专利标题： Vibration generating stepping motor
- 专利标题（中）： 振动发电步进电机
-
申请号： US11666490申请日： 2006-10-31
-
公开(公告)号： US20090134733A1公开(公告)日： 2009-05-28
- 发明人: Masaaki Matsubara , Kazuaki Sato , Mikio Umehara , Toshiaki Tsuzaki
- 申请人： Masaaki Matsubara , Kazuaki Sato , Mikio Umehara , Toshiaki Tsuzaki
- 专利权人： Minebea-Matsushita Motor Corporation
- 当前专利权人： Minebea-Matsushita Motor Corporation
- 优先权： JP2005-333497 20051118
- 国际申请： PCT/JP06/21775 WO 20061031
- 主分类号： H02K21/14
- IPC分类号： H02K21/14
摘要：
Provided is a vibration generating stepping motor, which is ensured for holding a stop position by increasing a detent torque. The pole teeth of one stator yoke of a single-phase stator yoke assembly includes two kinds of pole teeth made different in the outermost side faces in the radial direction, and the pole teeth of the other stator yoke are comprised of two kinds of pole teeth made different in the outermost side faces in the radial direction. The pole teeth of one kind of the aforementioned individual stator yokes are made to have the same shape. The pole teeth of the remaining two kinds not given the same shape are combined and arranged to increase the detent torque.