Composite stator and rotor for an electric motor
US6150747A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | May 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/128
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the embodiments described in the specification, a stator for an electric motor has an outer ring member made of resin material and supported from a frame by stator caps and a flanged inner composite ring member made of resin material which receives a steel band. Laminations and coil windings are mounted inside the steel band and an outer wrap of resin material encapsulates the steel band, laminations and coil windings. A rotor arrangement includes a steel hub surrounded by a disk-shaped member made of resin material and having inner and outer rings connected by radial arms. A non-ferromagnetic steel band surrounds the peripheral surface of the disk-shaped member and laminations and magnets or coil windings are positioned on the band and are encapsulated by an outer wrap of resin material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.