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1. (WO2017057070) ELECTRIC VEHICLE DRIVE DEVICE

Pub. No.:    WO/2017/057070    International Application No.:    PCT/JP2016/077492
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Sat Sep 17 01:59:59 CEST 2016
IPC: F16H 63/34
B60L 9/18
B60L 15/20
B60T 1/06
F16H 1/06
F16H 57/02
F16H 61/28
F16H 61/36
H02K 7/116
Applicants: NTN CORPORATION
NTN株式会社
Inventors: YUKISHIMA Ryou
雪島 良
Title: ELECTRIC VEHICLE DRIVE DEVICE
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.