Ring stator motor device
US6911757B2 · kind B2 · utility
10Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Aug 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An integrated drive motor assembly is described where the functional components of a powered device are an integral part of the motor. The assembly comprises a brushless, direct current drive motor having a ring-shaped stator with flat printed circuit coil windings, a ring-shaped permanent magnet rotor, and an electronic commutator circuit. Functional embodiments of the assembly include a rotor impeller and an axial flow fan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.