Title:
MOTOR UNIT
Document Type and Number:
WIPO Patent Application WO/2020/067273
Kind Code:
A1
Abstract:
An embodiment of this motor unit is provided with a motor, a transmission mechanism, and a housing. The transmission mechanism has: a motor drive shaft extending along a motor axis and rotated by the motor; a motor drive gear affixed to the motor drive shaft and rotating about the motor axis; a counter shaft extending along a counter axis; a counter gear which is affixed to the counter shaft, meshes with the motor drive gear, and rotates about the counter axis; a drive gear affixed to the counter shaft and rotating about the counter axis; a ring gear meshing with the drive gear and rotating about an output axis; and an output shaft connected to the ring gear and rotating about the output axis. The motor drive shaft is a hollow shaft open to the opposite ends thereof in the axial direction of the motor axis. The output shaft is inserted into the motor drive shaft. The counter axis is located above the motor axis in the gravitational direction.
Inventors:
MIYATA YOHEI (JP)
FUKUNAGA KEISUKE (JP)
FUKUNAGA KEISUKE (JP)
Application Number:
PCT/JP2019/037825
Publication Date:
April 02, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
F16H1/06; B60K1/00; B60K17/04; B60K17/12; F16H57/04; F16H61/28; F16H63/34; B60K17/06
Domestic Patent References:
| WO2012060195A1 | 2012-05-10 | |||
| WO2012127668A1 | 2012-09-27 |
Foreign References:
| JP2012531350A | 2012-12-10 | |||
| JP2012228143A | 2012-11-15 | |||
| US20140106921A1 | 2014-04-17 | |||
| CN201390131Y | 2010-01-27 |
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