Embedded permanent magnet type induction motor which allows coil embedding work to be easily performed
US6727624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embedded permanent magnet type induction motor has a rotor that is a lamination of a plurality of rotor core plates (10). The rotor core plate is provided with a plurality of rotor slots (12) each inclined by an angle &agr; with respect to a radial direction of the rotor core plate. The rotor has the axial length L being made of laminations divided into at least two equal portions with respect to its central axis. The divided laminations are combined with one another so that one of the divided laminations is opposed to another in inclination of the angle &agr; and the plurality of rotor slots of one of the divided laminations are respectively superposed on the rotor slots of another at at least their ends closer to the central axis of the rotor to form a skew angle &bgr;.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.