- 专利标题: Claw-pole type stepping motor having radial dimension reduced without detriment to performance characteristic
-
申请号: US10884117申请日: 2004-07-02
-
公开(公告)号: US06876109B2公开(公告)日: 2005-04-05
- 发明人: Kunitake Matsushita , Takayuki Yamawaki , Toshihiko Nagata , Naoyuki Harada
- 申请人: Kunitake Matsushita , Takayuki Yamawaki , Toshihiko Nagata , Naoyuki Harada
- 申请人地址: JP
- 专利权人: Minebea Co., Ltd.
- 当前专利权人: Minebea Co., Ltd.
- 当前专利权人地址: JP
- 代理机构: Wallenstein Wagner & Rockey, Ltd.
- 优先权: JP2003-193329 20030708
- 主分类号: H02K37/14
- IPC分类号: H02K37/14 ; H02K1/14 ; H02K5/04 ; H02K5/15 ; H02K37/12 ; H02K5/02 ; H02K15/02
摘要:
A claw-pole type stepping motor comprises: a rotor which is shaped substantially cylindrical, and which has a rotary shaft at its radial center; and two stators which are shaped like a cup, each have at least one magnetic coil, are coupled to each other so as to rotatably house the rotor with their magnetic coils located respectively toward both axial end faces of the rotor, and which each have two pole tooth arrays magnetically connected to each other such that magnetic phase difference therebetween at tips of respective pole teeth is 180 degrees in terms of electrical angle, and in the motor thus structure, three pipes of aluminum go axially through the two stators so as to hold together the two stators.
公开/授权文献
信息查询