Electrical motor drive apparatus with planetary gearing
US5382854A · kind A · utility
101Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Jul 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motor drive apparatus for an electric vehicle has a case attached to a vehicle body; an output axle which rotates relative to the case; an electric motor having a magneto stator secured to an inside wall of the case and a rotor which faces the magneto stator with a predetermined clearance and rotates relative to the case; and a planetary gear unit provided inside of the rotor and consisting of three components of a sun gear, a ring gear and a carrier. The electric motor speed is output from the output axle through the planetary gear unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.