Single phase permanent magnet motor
US11489375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2016 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | May 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator corer and windings. The stator corer includes a yoke portion and stator teeth. Each stator tooth includes a winding portion and a pole shoe connected to an end of the winding portion. Each pole shoe includes a pole face. The pole face defines a first positioning notch at a middle thereof. Each of the pole faces further defines at least one second positioning notch. Said at least one second positioning notches in one of pole shoe are located at the same side of the first positioning notch of the corresponding one pole shoe. The first and second positioning notches are configured such that an initial position of the rotor received in the space of the stator is offset from a dead point position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.