| 摘要 |
PROBLEM TO BE SOLVED: To provide an induction heating roller device prevented from the lowering of the temperature at a roller surface caused by the potential difference between end parts of induction coils divided into a plurality. SOLUTION: Induction coils A, B and C for the induction heating system, divided into a plurality, successively installed inside a cavity of rotating roller in the direction of roller axis, are excited by an single phase power source U, V. An identical potential is impressed to a winding end part of the induction coil A, and to a winding starting part of the induction coil B adjacent to the induction coil A, and the induction coil A is wound forward and the induction coil B is wound reverse so as to make the direction of fluxesΦa,Φb identical, and the potential ant the way of winding of the induction coil C adjacent to the induction coil B is set with the same way as the above. This is also applicable when connecting the induction coils divided into plurality to a three-phase power source.
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