Di- or polyphase synchronous electric motor with a disc-shaped rotor
US5053667A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Feb 9, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/148
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The stator of this flat magnetized-rotor motor comprises sets of pole pieces, arranged substantially radially, the sets being surrounded by corresponding electrical control coils. Separate yoke portions, having surface portions of axially symmetric design, are arranged in contact with the pole pieces of a corresponding set. The flat portions each consist of two sheet elements, forming between them an angle; the portions are inserted radially in the respective slots of a support portion of a stator element. With this arrangement it is possible to produce high-performance motors, at very low cost and whose dimensions in the radial direction are extremely small.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.