Electric motor
US8378549B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Mar 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/1166
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Each of a plurality of brushes is tilted relative to an imaginary plane that is perpendicular to a rotational axis of an armature and is placed on one axial side of a brush holder, at which an interior of a yoke housing is located. A radial inner end part of each brush has a slide contact surface, which is generally parallel to the rotational axis of the armature and slidably contacts an outer peripheral surface of a commutator. At least a portion of the slide contact surface of each brush is axially disposed outside of an opening of the yoke housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.