Electrical machine including toothless flux collector made from ferromagnetic wire
US6242840A · kind A · utility
46Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Jun 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flux collector for an electrical machine includes a continuous strand of ferromagnetic material; and an electrical insulator covering the strand. The strand forms a tight cylindrical coil including a plurality of turns that are stacked axially. The insulator provides turn-to-turn insulation. The insulated wire is covered with a binder and cured. The strand can be a high permeability wire made of soft iron, silicon steel or cobalt steel. In the alternative, the strand can be a strip of METGLAS.RTM. amorphous alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.