发明授权
US08701503B2 Magnetostrictive torque sensor and electrical power steering device
有权
磁致伸缩转矩传感器和电动助力转向装置
- 专利标题: Magnetostrictive torque sensor and electrical power steering device
- 专利标题(中): 磁致伸缩转矩传感器和电动助力转向装置
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申请号: US13258046申请日: 2010-03-31
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公开(公告)号: US08701503B2公开(公告)日: 2014-04-22
- 发明人: Yasuo Shimizu , Atsuhiko Yoneda , Yutaka Arimura , Yoshihiro Oniwa
- 申请人: Yasuo Shimizu , Atsuhiko Yoneda , Yutaka Arimura , Yoshihiro Oniwa
- 申请人地址: JP Tokyo
- 专利权人: Honda Motor Co., Ltd.
- 当前专利权人: Honda Motor Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Carrier Blackman & Associates, P.C.
- 代理商 Joseph P. Carrier; William D. Blackman
- 优先权: JP2009-101049 20090417
- 国际申请: PCT/JP2010/055870 WO 20100331
- 国际公布: WO2010/119773 WO 20101021
- 主分类号: G01L3/02
- IPC分类号: G01L3/02
摘要:
Disclosed are a magnetostrictive torque sensor and an electrical power steering device, wherein a first torque sensor has: one magnetostrictive film provided on a steering shaft; a first coil and a second coil that detect changes in the magnetic characteristics of the magnetostrictive film; and a first housing that contains, at least, the steering shaft, the magnetostrictive film, the first coil, and the second coil. The first housing has a resin part, a cylindrical part made of a metal that is soft magnetic, and a flange part made of a metal that is soft magnetic. The resin part, the cylindrical part, and the flange part are formed as a unit.
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