Brushless direct current motor system
US4554473A · kind A · utility
92Cited by
10References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 17, 1984 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Feb 17, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a brushless direct current motor system and includes a switching circuit support mounted on stationary parts of the motor. The switching circuit support with electronic drive means is part of the stator and is disposed inside the rotatable housing. The axial extension of the rotatable housing functions as a drive boss whose diameter is independent of the diameter of the motor stator core and is step-wise smaller in diameter at its outer closed end than at its inner opened end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.