Snap-together choke and transformer assembly for an electric arc welder
US7646281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2005 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Sep 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F37/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for an electric arc welder comprising a first electromagnetic device including a first core assembly, wherein the first core assembly has a first stack of laminations which are press-fitted or snapped together into interlocking engagement with a complementary second stack of laminations so as to form two flux paths through the first core assembly, each of which passes through a center portion of the first core assembly; a second electromagnetic device, such as a transformer, including a second core assembly, wherein the second core assembly has a first stack of laminations which are press-fitted or snapped together into interlocking engagement with a complementary second stack of laminations so as to form two flux paths through the second core assembly, each of which passes through a center portion of the second core assembly; and wherein the two core assemblies of the electromagnetic devices are press-fitted or snapped together into interlocking engagement with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.