Consequent pole permanent magnet motor
US8796897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2011 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Sep 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2746
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a motor, an armature is provided to be opposite to a rotor member for generating a rotating magnetic field. In the armature, plural sets of teeth are arranged in a direction of rotation of the rotor member such that each set of teeth in the plural sets of teeth is within one electrical angular cycle of the rotating magnetic field. The one electrical angular cycle corresponds to one pole-pair pitch of the annular rotor member. A number of teeth in the plurality of teeth within the one pole-pair pitch is set to 2k (k is a natural number), and a number of teeth facing each of the first magnetic poles in the plurality of teeth is set to be equal to or greater than the sum of k and 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.