Stepper motor for clockwork in which the stator consists of a soft magnetic alloy and soft magnetic alloy
US5838080A · kind A · utility
27Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Aug 6, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K37/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Stepper motor of the type comprising a rotor (1), a stator (2) and a coil (3) consisting of a magnetic core (4) and of a winding (5), in which the stator (2) consists of a soft magnetic alloy of the FeNiCr type, the chemical composition of which includes, by weight: 40%.ltoreq.Ni+Co.ltoreq.60%, 0%.ltoreq.Co.ltoreq.7%, 8%.ltoreq.Cr.ltoreq.13.5%, 8%.ltoreq.Cr+Mn+Si+Mo+Nb+V+W.ltoreq.13.5%, the remainder being iron and impurities resulting from the manufacture. Soft magnetic alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.