Automotive alternator and automotive alternator brush abrasion detection system
US7116032B2 · kind B2 · utility
4Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2005 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Feb 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brush holding apparatus is mounted to an inner wall surface of a rear bracket and a cap mounted to a head portion of a brush holder portion is exposed through an opening in the rear bracket. Brushes are housed inside brush insertion apertures of the brush holder portion and are placed in elastic contact with slip rings by springs. An abrasion detection terminal is insert molded into the brush holder portion, a contact thereof projecting inside one of the brush insertion apertures and coming into contact with the corresponding spring when the brushes are abraded by a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.