Flat radially interacting electric drive and a method of the manufacturing the same
US7586232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2006 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Nov 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat radially interacting electric drive comprises a flat stator, an axle and a magnetized flat rotor. The flat stator comprises a stator core made of silicon steel and placed within two layers of circuit boards. The circuit boards layers comprise circumferentially arrayed traces that are corresponding unidirectional segments of spatial continuous zigzag lines serving like coils with magnetic axes being directed radially. The coils electrically connected in a series way thus form a stator winding with alternated polarity coils. The flat rotor comprises circumferentially arrayed alternatively magnetized flat magnets with radially directed magnetic axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.