Brush device for motor
US7994682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2008 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Jul 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/39
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Each of the paired brush devices includes a brush in sliding contact with a commutator, a brush arm holding the brush, and a brush base to which the brush arm is fixed and which has a base hole. The pair of brush devices are disposed such that a line connecting the centers of the pair of brushes inclines in relation to a line connecting the centers of a pair of magnets. Each of the brush arms of the brush devices is disposed on the outside of the corresponding brush base at a location where the brush arm is fixed to the brush base, and one of the brush arms is bent from the outside of the corresponding brush base toward the inside thereof while being passed through the base hole to intersect the brush base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.