Switched reluctance rotor molded lug
US5604388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1994 |
| Grant date | Feb 18, 1997 |
| Priority date | — |
| Expiry date | Feb 16, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2205/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switched reluctance motor (M) comprises a stator assembly (SA) including a stator (S) having a central bore (B) and a plurality of inwardly extending salient teeth (ST). A plurality of stator windings (W) are installed on the stator teeth. A rotor assembly (RA) includes a (R) rotor mounted on a rotor shaft (RS) and installed in the central bore for rotation with respect to the stator assembly. The rotor assembly has a pluralitry of outwardly extending salient teeth (RT) with gaps (G) extending lengthwise of the rotor assembly between adjacent rotor teeth. A noise reducer assembly (10) installed on the rotor assembly reduces the noise produced by the rotor when the motor is operating at normal speeds. The assembly includes a lug (14) made of an electrically non-conducting material inserted in each rotor gap and extending the lengthwise of the rotor assembly. Each lug is hollow with sidewalls (16A, 16B) and an inner endwall (16C) all of whose contours generally form mating contours with the respective sidewalls of the rotor poles and the contour of the rotor at the inner end of a gap. An outer endwall (16D) of a lug has a curved contour the curvature of which generally corresponds …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.