Switched reluctance motor having stator inserts for noise reduction, magnet positioning, and coil retention
US6232693A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1997 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | May 13, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2205/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched reluctance motor having a rotor and a stator is disclosed. The stator has a plurality of peripherally spaced stator poles, each being defined by an inner curvilinear face, which is generally aligned with the curvilinear faces of adjacent stator poles in a circumferential path. A plurality of stator inserts are also provided that are disposed between adjacently spaced stator poles. Each stator insert has a curvilinear face that is generally aligned in the same circumferential path with the curvilinear faces of adjacently spaced stator poles to reduce siren noise. Each stator insert is also constructed to include at least one pocket opposite its curvilinear face for receiving a magnet to facilitate positioning of the rotor relative to the stator poles. Each stator insert is further provided with oppositely extending arms for receiving and mounting a pre-wound stator coil or "wound-in-place" coils. A method of assembling the pre-wound coil relative to adjacent spaced stator poles and stator inserts is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.