Drive unit for electric vehicle
US7775060B2 · kind B2 · utility
17Cited by
20References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2004 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Dec 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A drive unit for an electric vehicle is comprised of a motor, an inverter which supplies alternating current electric power to the motor, a speed reducer which is connected to the motor, and a cooling system which cools the motor, the inverter and the speed reducer. The speed reducer reduces a revolution speed of a mechanical output of the motor. The cooling system comprises a heat exchanger at which first refrigerant for receiving heat of at least one of the motor and the inverter receives heat of second refrigerant for receiving heat of at least one of the motor and the speed reducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.