DC fan motor and method of manufacturing same
US6577031B2 · kind B2 · utility
22Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2001 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4913
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A printed circuit board 6, a stator core 8, an AC power source connector 14, a step-down circuit 15, a rectifier circuit 16, and a control circuit 18 are molded into one piece using a molding material 20 to form a stator. A rotor 9 is placed on the stator core 8. DC high voltage from the rectifier circuit 16 is supplied directly to stator coils 7 as a driving power source, and DC low voltage from the step-down circuit is supplied to the control circuit as a control power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.