Rotary electrical machines
US7061149B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Apr 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine, such as an induction motor, comprises a stator having a plurality of conductive windings spaced around an axis of rotation, a rotor rotatable about the axis of rotation in response to the flow of current through the stator windings, and a plurality of switching assemblies provided at circumferentially spaced locations around the stator. Each switching assembly is electrically connected between an end of at least one of the windings and a power supply busbar ring assembly comprising at least one conductor. The busbar assembly connects the electrical supply to one or more of the switching assemblies, each of the switching assemblies being effective to selectively control the supply of current to at least one of the windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.