Method and apparatus for constructing a segmented stator
US6487769B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2000 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Jun 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53196
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are disclosed for assembling an electric machine. The electric machine includes a plurality of stator segment assemblies that are mounted inside of a housing of an electric machine. The stator segment assemblies are positioned around an outer surface of an assembly fixture. The stator segment assemblies are held to the assembly fixture using a magnetic field that is generated by the assembly fixture. The housing is press fit or hot dropped over the stator segment assemblies. If the housing is hot dropped, the housing is heated to cause the housing to expand. The housing is positioned over the stator segment assemblies while the housing is hot. The housing cools and contracts around the stator segment assemblies to form an interference fit with the stator segment assemblies and then the stator and the housing are removed from the assembly fixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.