Brush holder assembly for a dynamo-electric machine
US7982357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2009 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Nov 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2201/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brush holder assembly for a dynamo-electric machine includes a brush fixture snap-fittingly secured to a shielding fixture. A brush member is moveably mounted within the brush fixture and includes a recessed region, and a shunt member. The shunt member includes a first end operatively connected to the brush member at the recessed region that extends through an intermediate region to a second end. A constant force spring is operatively connected between the second end section of the brush and the brush fixture. The brush holder assembly also includes a shunt retainer mounted in the brush fixture abutting the brush member. The shunt retainer includes a first leg portion, a second leg portion and a base portion. The shunt retainer is configured to maintain proper alignment of the constant force spring and prevent entanglement of the shunt member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.