专利内容由知识产权出版社提供
专利名称：MOTOR UNIT
发明人：Yuki ISHIKAWA,Yasuo YAMAGUCHI,Takayuki
MIGITA
申请号：US16323934申请日：20170807
公开号：US20210288550A1公开日：20210916
专利附图：
摘要：A motor unit includes a motor including a rotor to rotate about a motor axis, areduction gear including an intermediate gear to rotate about an intermediate axis andconnected to the motor, a differential including a ring gear to rotate about a differential
axis and connected to the reduction gear, a housing including a housing space to housethe motor, the reduction gear, and the differential, oil in a vertically lower region of thehousing space, and an oil passage to lead the oil from the vertically lower region of thehousing space to be fed to the motor. The housing includes a ceiling portion directlyabove the reduction gear and the differential. At least a portion of the ring gear is lowerthan a liquid surface of the oil in the vertically lower region of the housing space. Themotor axis, the intermediate axis, and the differential axis extend in parallel with oneanother along a horizontal direction. Each of the intermediate axis and the differentialaxis is lower than the motor axis. The ceiling portion is substantially parallel to an
imaginary line imaginarily joining the motor axis and the differential axis when viewed in anaxial direction of the motor axis.
申请人：Nidec Corporation
地址：Kyoto JP
国籍：JP
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