发明申请
- 专利标题： IN-WHEEL MOTOR DRIVE DEVICE
- 专利标题（中）： 内轮电机驱动装置
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申请号： US13697828申请日： 2011-05-11
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公开(公告)号： US20130057117A1公开(公告)日： 2013-03-07
- 发明人: Minoru Suzuki , Ken Yamamoto , Tatsuya Yamamoto
- 申请人： Minoru Suzuki , Ken Yamamoto , Tatsuya Yamamoto
- 申请人地址： JP Osaka
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： JP Osaka
- 优先权： JP2010-113096 20100517
- 国际申请： PCT/JP2011/060868 WO 20110511
- 主分类号： H02K9/19
- IPC分类号： H02K9/19
摘要：
A plurality of circumferential fins 22g are formed on an outer peripheral surface of a motor casing 22a, and a plurality of fins 22f are formed on an outer surface of a motor rear cover 22d. Lubricant circulates in a motor-casing oil passage 55 provided in the motor casing 22a, a motor-rear-cover oil passage 56 provided in the motor rear cover 22d, and a speed reduction portion B. This lubricant is cooled when flowing in the motor-casing oil passage 55 and the motor-rear-cover oil passage 56. Thus, an in-wheel motor drive device 21 is efficiently cooled.
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