Stepping motor
US4480203A · kind A · utility
3Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1982 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | Dec 30, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K37/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stepping motor in which a rectangular stator core in the shape of a square frame has poles in the center of the inner side edges of sides thereof, four coils are wound on the poles of stator core, and a rotor is disposed in the space surrounded with the coils and having the height of each of poles being made 0.24 to 0.5 times as much as the outside diameter of the rotor. Each of poles has at the end thereof a plurality of projections according to a step angle. The rotor has projections on the peripheral surface thereof according to the step of the pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.