Electric motor having composite encapsulated stator and rotor
US6069421A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1999 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electric motor disclosed in the specification has an encapsulated stator which includes inner and outer annular composite layers each having a radial flange joined to an end of the other layer by chemical welds, an array of laterally adjacent circular laminations and windings in axially extending slots in the laminations adjacent to the inner composite layers, and a metal band surrounding the laminations, along with encapsulating resin filling the space between the inner an outer layers. The motor also includes an encapsulated rotor having a similar structure, but with magnets inserted in axially extending slots in the laminations adjacent to the outer composite layer and a metal band disposed between the inner annular composite layer and the laminations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.