- 专利标题: ELECTRIC ACTUATOR
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申请号: US17340111申请日: 2021-06-07
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公开(公告)号: US20210384798A1公开(公告)日: 2021-12-09
- 发明人: Hiroshi SHIRAI , Kohei OSUGA , Kenichi OZAWA
- 申请人: NIDEC TOSOK CORPORATION
- 申请人地址: JP Kanagawa
- 专利权人: NIDEC TOSOK CORPORATION
- 当前专利权人: NIDEC TOSOK CORPORATION
- 当前专利权人地址: JP Kanagawa
- 优先权: JP2020-099080 20200608
- 主分类号: H02K7/116
- IPC分类号: H02K7/116 ; H02K7/00 ; H02K11/33 ; H02K7/08
摘要:
An electric actuator of the disclosure includes a motor, a speed reduction mechanism, and a bearing fixed to a motor shaft having an eccentric axis portion. The speed reduction mechanism has: an externally toothed gear, an internally toothed gear, a facing member facing the externally toothed gear, column members protruding from one member of the facing member and the externally toothed gear toward the other member and surrounding the motor axis, and at least one tube member surrounding the column members. The other member has hole portions surrounding the motor axis. The column members are inserted into the hole portions respectively, and support the externally toothed gear to be swingable around the motor axis via an inner side surface of each of the hole portions. The at least one tube member surrounds the column members in the hole portions and is rotatable around a rotary axis passing through the hole portions.