Miniature motor
US5053657A · kind A · utility
7Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Apr 26, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature motor comprising a stator having a permanent magnet field fitted to the inside of a motor case, a rotor having a rotor winding and rotatably supported in such a manner as to face the stator, a commutator provided at an end of the rotor, and a cooling fan, in which a plurality of lugs are provided in a projected state on an end face of a core constituting a rotor end portion, a plurality of holes corresponding to the lugs are provided on the cooling fan having a plurality of vanes, and the cooling fan is fixedly fitted to the core and then secured in place by plastic deforming of the lugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.