| 摘要 |
PROBLEM TO BE SOLVED: To provide coil component for heating with high heating efficiency, by which warm-up time is shortened, quick start is enabled, power is saved and furthermore, temperature distribution of the heating roller is uniformized in a fixing device in an electromagnetic induction heating system. SOLUTION: The exciting coil 3 for electromagnetic induction heating is formed by winding assembled twisted wires by collecting a plurality of magnetic wires in a circumferential direction of a heat-resistant resin cylindrical bobbin 2 one by one roll approximately to paper passing size W of a cylindrical heating roller 4 while shifting the twisted wires in a longitudinal direction of the bobbin, in addition, as for a plurality of ferrite cores to be arranged in the cylindrical bobbin 2, the ones with the same shape as a columnar core 1 are arranged on a central axis of the bobbin 2 at even intervals and only a core 1a in the vicinity of both left and right ends is formed as exciting coil component 10 for electromagnetic induction heating by arranging a core with cross sectional area larger than that of the core 1. COPYRIGHT: (C)2004,JPO
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