Three-phase permanent magnet cascade claw type stepping motor
US6028377A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K37/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnet type stepping motor which has (1) a stator with three-phase stator windings, and 6 m pieces of stator main pole arranged side by side, where m is an integer and.gtoreq.1, the stator windings of one phase are wound around every two stator main poles among the 6 m pieces of the stator main pole, wherein when the stator windings of one phase are excited with a direct current, m pieces of N pole and M pieces of S pole are formed alternately on the 6 m pieces of stator main pole, and (2) a rotor of a cylindrical permanent magnet magnetized in the circumferential direction to form Z/2 pieces of N pole and Z/2 pieces of S pole alternately, where Z is the number of rotor poles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.