Brushless motor
US8049382B2 · kind B2 · utility
3Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2007 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K16/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A Hall element is placed under an outside rotor at an identical angular position to a centerline between two adjacent outer teeth. This structure allows narrowing a dead band of the Hall element when it senses a leakage magnetic flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.