Patent ID: 6670588
Filing Date: 2003-12-30
Classification: G03G,H05B

Abstract:
An induction heating roller apparatus comprising:a rotating roller; an inductive heat generation unit arranged in said rotating roller; a plurality of inductive coils arranged in the shaft center direction of said roller, being provided in said inductive heat generation unit; an input power source being a three phase power source; and an inverter outputting a single phase voltage, wherein the single and same phase voltage outputted from said inverter is applied to said inductive coil as an exciting voltage; and wherein the rotating roller includes: a plurality of temperature sensors provided on said rotating roller and each outputting a first signal corresponding to a portion of said roller corresponding to one of said plurality of inductive coils; and a plurality of temperature adjusters comparing the first signal from said each temperature sensor with a set temperature value of each said inductive coil and outputting a second signal corresponding to a difference based on the comparison into said inverter, wherein said inverter adjusts said single phase voltage in accordance with the second signal.