Inductor using drum core and method for producing the same
US7495538B2 · kind B2 · utility
21Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2007 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Aug 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductor comprises a drum core which comprises a sintered magnetic material and has a winding axis and a pair of collars in a plate shape provided on both ends of the winding axis. The inductor further comprises a coil conductor wound on the winding axis of the drum core, the coil conductor is covered on an outer periphery thereof with a composite magnetic material in a sheet form containing a resin and magnetic powder, and the composite magnetic material in a sheet form is adhered to the outer periphery of the coil conductor except at least for inner surfaces of the pair of collars of the drum core facing each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.