Coreless motor
US5621260A · kind A · utility
17Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1993 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Oct 1, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a coreless motor, a shaft of the coreless motor does not pass through a magnet but is arranged in series with a columnar magnet on the same axis. The magnet is inserted in a tubular frame made of magnetic material and a coil which is mounted on the shaft is inserted in the gap between the outer surface of the magnet and the inner surface of the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.