Motor apparatus having rotational position detector
US7135801B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/225
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor apparatus is provided with a yoke housing, a gear housing and a brush holder. A receiving portion of the gear housing receives the worm wheel, etc. therein. The brush holder is interposed between the yoke housing and the gear housing. The worm wheel is provided with a switching plate on one side face thereof, which is in slide contact with contact members. The gear housing is provided with a housing body and a cover. In the housing body is formed a communication hole to communicate an internal spaces of the receiving portion and a yoke housing. The contact members are disposed on the brush holder and on the bottom portion side of the receiving portion with respect to the worm wheel so as to extend through the communication hole into the gear housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.