Permanent magnet type stepping motor
US4503368A · kind A · utility
34Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Nov 21, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K37/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet type stepping motor wherein magnetic poles of a stator core consisting of a cylindrical yoke, a plurality of magnetic poles provided radially around the inside of the cylindrical yoke, and pole teeth formed on the tips of the magnetic poles are divided into two almost equal parts near the tips thereof so as to be isolated axially from each other, each of the pole teeth of the magnetic poles in each group is made to face one of pole teeth of two poles provided around the circumference of a rotor with a gap therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.