Starter with brush cooling structure
US5821662A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 12, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/131
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brush holder is held between a yoke of a starter motor and an end frame made of resin. The brush holder has an engaging guide portion projecting axially therefrom and engaging the yoke and the end frame and a projected peripheral portion projecting outside from peripheral surfaces of the yoke and that of the end frame. The brush holder contacts the yoke and the end frame at cylindrical surfaces thereof and surfaces perpendicular to the cylindrical surfaces. This construction allows the brush holder to be prevented from loosening, thus improving the vibration proof and durability of the brush holder. Further, the brush holder contacts the yoke and the end frame at the cylindrical surfaces thereof and the surfaces perpendicular to the cylindrical surfaces, thus dissipating the heat of a brush through the brush holder and the yoke more efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.