Heating device and fuser utilizing electromagnetic induction
US6888113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2004 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Jan 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2053
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating device utilizing electromagnetic induction is provided with an induction heating unit that is opposed to a heating member and causes the heating member to heat through electromagnetic induction. The induction heating unit has an exciting coil for generating a magnetic field and a coil guide member on which the exciting coil is wound. The exciting coil is formed in at least two layers in such a manner that a first layer is formed on a circumferential surface of the coil guide member by winding a plurality of turns and a second layer is formed around and outside the first layer on the side opposite to the coil guide member, and winding of each of the second layer and following layers is started from a position close to a winding start position of the first layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.