Coil
US6774757B2 · kind B2 · utility
25Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2003 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | May 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F17/0013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Metallic coils sheets (34, 36, 38) are planar and include center windows (34a, 36a, 38a). Slits (34b, 36b, 38b) extend outward through the respective sheets from the windows. Connection terminals (34c, 34d; 36c, 36d; 38c, 38d) are provided on the sheets at locations facing across the respective slits. The metallic coil sheets are stacked, and adjacent ones of the stacked metallic coil sheets are electrically connected by means of the connection terminals. A core (60, 62) is disposed in the windows of the stacked metallic coil sheets. The metallic coil sheets are individually covered with an insulating coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.