Title:
ELECTRIC VEHICLE DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/057070
Kind Code:
A1
Abstract:
The invention addresses the problem of reducing the size of an electric vehicle drive device by reducing the size of a parking lock mechanism provided in the electrically-driven vehicle device. Provided is an electric vehicle drive device comprising an electric motor, a speed reducer that transmits power to a drive wheel by decelerating the rotation of the electric motor, a casing 20a that houses the electric motor and the speed reducer, and a parking lock mechanism 40 that locks the drive wheel, said electric vehicle drive device is provided with a parking gear 41 that is provided on an input gear rotary shaft 23 housed in the casing 20a, a parking pawl 42 that comprises a claw part that can engage and disengage with an engaging part of the parking gear 41, a rotating cam 44a that makes the claw part of the parking pawl 42 swing so as to engage and disengage with the engaging part of the parking gear 41, and a cam driving unit 44 that rotates the rotating cam 44a. The cam driving unit 44 comprises a cam drive shaft 44b that is rotatably mounted on the rotating cam 44a, and a rotating means for rotating the cam drive shaft 44b. The rotating means is provided on the outside of the casing 20a.
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Inventors:
YUKISHIMA RYOU (JP)
Application Number:
PCT/JP2016/077492
Publication Date:
April 06, 2017
Filing Date:
September 16, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H63/34; B60L9/18; B60L15/20; B60T1/06; F16H1/06; F16H57/02; F16H61/28; F16H61/36; H02K7/116
Foreign References:
| JPH0732990A | 1995-02-03 | |||
| JP2009121552A | 2009-06-04 | |||
| JP2011179640A | 2011-09-15 | |||
| JPH11243664A | 1999-09-07 | |||
| JP2006224819A | 2006-08-31 | |||
| JP2011027219A | 2011-02-10 |
Attorney, Agent or Firm:
TORII Kazuhisa et al. (JP)
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