Electric motor fan
US4589827A · kind A · utility
3Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Jun 4, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/288
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor fan comprises a fan driven by a motor, a case with the fan mounted therein and including a scroll providing an air outlet port of the fan, and a control unit including an output transistor for controlling the drive of the motor. The control unit includes a heat radiation device mounted in the scroll for radiating the heat generated by the transistor. At least a part of the heat radiation device is formed as a radiation fin having an internal surface in the same plane as the internal wall surface of the scroll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.