Generator having first and second windings with same-direction electromotive forces
US7939983B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 14, 2006 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Sep 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K31/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a generator which produces electromotive forces in the same direction on all windings to prevent occurrence of leakage magnetic fields of the windings and lowering of the rotational forces of rotor plates due to the leakage magnetic fields from the windings and offers high efficiency without accompanying any circuit loads. The generator includes first windings 15-1 to 15-4 divided in the plural number and wound around a fixed ring core 5; second windings 25-1 to 25-4 divided in number equal to the plural number and wound around so as to cover divided gap portions of the first windings; and first and second rotor plates 30 and 35 provided to be opposed to both surfaces of the ring core 5, wherein the first rotor plate has first permanent magnets 40-1 to 40-4 opposed to the first windings, the second rotor plate has second permanent magnets 45-1 to 45-4 opposed to the second windings, and electricity generated on the first and second windings 15-1 to 15-4 and 25-1 to 25-4 is taken out by rotation of the first and second rotor plates 30 and 35.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.