Rotor for a reluctance motor
US6509667B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Sep 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reluctance rotor and method for manufacturing reluctance rotors having soft magnetic regions and regions with magnetic properties that are dissimilar to those of the soft magnetic region so as to create a flux barrier. The method generally entails producing a magnetic body having a central axis and an outer peripheral surface. The body is composed of concentric regions, at least one of which is a soft magnetic region while at least a second region of the concentric regions is formed of a material with dissimilar magnetic properties to the soft magnetic region. Once formed, the body is divided along radials thereof to form wedge-shaped members, with each wedge-shaped member having coaxial arcuate regions that are portions of the concentric regions of the body. As a result of the manner in which the body is divided, the wedge-shaped members have radial surfaces defined where the wedge-shaped members were divided from the body, and each wedge-shaped member also has a distal surface corresponding to the outer peripheral surface of the body. The wedge-shaped members are then arranged about an axis of symmetry corresponding to the axis of rotation of the rotor, with the distal surfaces…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.