Single-stage, two-phase of four-phase synchronous electric motor
US4823040A · kind A · utility
13Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Aug 11, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator of the planar magnetized rotor motor according to the invention comprises groups of polar parts and at least two control coils. On each side of the rotor, each group of polar parts surrounded by a coil is arranged adjacent to the groups which are not surrounded by a coil. This arrangement makes it possible to increase the number of active poles of the stator, thereby increasing the motor torque, in a small size, economical, simple construction motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.