Fully enclosed type motor with outer fans
US6891290B2 · kind B2 · utility
23Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2003 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Nov 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/207
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fully enclosed type motor with outer fans includes a ventilation fan. The fan has radially extending blades on a bracket side, and radially extending blades on a core side. Outside air is let into an air passage as cooling air from an opening formed in the bracket on an inner side of the blades. The cooling air is fed into a cooling hole formed in an outer peripheral part of a stator core and then discharged to the outside. Air within the motor body, which is fed from the blades, is passed through an external heat exchanger and returned to the inside of the motor body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.