Brushless motor with reduced rotor inertia
US6703740B2 · kind B2 · utility
6Cited by
15References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2000 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Dec 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/161
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct current electric motor having a reduced inertia rotor includes a stator affixed to a housing wherein the stator comprises a plurality of electrically conductive windings. The stator further defines a central cavity in which is mounted a rotor. The rotor comprises a shaft, at least two magnets affixed in a radially spaced manner from the shaft, and a rotor core between the shaft and magnets that is rotationally de-coupled from the shaft and the magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.