Patent ID: 7060952
Filing Date: 2006-06-13
Classification: H05B,Y10T

Abstract:
1. An induction heating coil device comprising: a workpiece including at least one planar surface, an induction coil including a plurality of coil turns arranged in inwardly converging and arranged to have planes of said coil turns offset from each other for generating high frequency wave, and including at least one insulating ring attached onto said coil turns for contacting with said at least one planar surface of said workipiece and for preventing said coil turns from being electrically contacted with said at least one planar surface of said workpiece, and said planes of said coil turns being disposed parallel to said at least one planar surface of said workpiece, for allowing said workpiece to be uniformly heated by the high frequency wave generated by said coil turns of said induction coil.