Double-stator/double-rotor type motor and direct drive apparatus for washer using same
US8987962B2 · kind B2 · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Dec 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a double-stator/double-rotor type motor, and a direct drive apparatus for a washing machine using the double-stator/double-rotor type motor, in which a nonmagnetic material is provided between inner and outer stators so as to form dual magnetic circuits that are respectively separated for an inner rotor and an outer rotor, and a double stator is disposed between an inner rotor and an outer rotor so as to separably form a magnetic circuit with a shortened magnetic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.