Title:
MOTOR UNIT
Document Type and Number:
WIPO Patent Application WO/2019/202947
Kind Code:
A1
Abstract:
One aspect of this motor unit is a motor unit that rotates a wheel axle of a vehicle, the motor unit comprising: a motor having a motor shaft that rotates about a motor axle; a speed reducer connected to the motor shaft; a differential device that is connected to the speed reducer and that rotates the wheel axle about a differential axle; a housing having a motor-accommodating part that accommodates the motor, and a gear-accommodating part which accommodates the speed reducer and the differential device and inside of which oil is accommodated; and a storage part which opens vertically upward inside the gear-accommodating part, and which can store oil. The differential axle aligns with the motor axle. The motor shaft is a hollow shaft that opens at both sides in an axial direction. The wheel axle is passed through the interior of the motor shaft. One axial end of the motor shaft protrudes into the gear-accommodating part. Within the opening in one axial side of the motor shaft, a diametral gap between the motor shaft and the wheel axle is at least partially positioned inside the storage part.
Inventors:
YAMAGUCHI YASUO (JP)
FUJIHARA HISASHI (JP)
NAKAMURA KEIGO (JP)
HIWA TAKAHIRO (JP)
FUJIHARA HISASHI (JP)
NAKAMURA KEIGO (JP)
HIWA TAKAHIRO (JP)
Application Number:
PCT/JP2019/013733
Publication Date:
October 24, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
B60K6/40; B60K6/36; B60K6/405; B60K6/442; B60K17/02; B60K17/04; B60K17/16; B60L15/00; F16H1/06; F16H57/04; H02K7/116
Foreign References:
| JP2016101879A | 2016-06-02 | |||
| JP2017056841A | 2017-03-23 |
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