感应发热辊装置和感应线圈温度检测机构;INDUCTION HEATED ROLL APPARATUS AND INDUCTION COIL TEMPERATURE DETECTING MECHANISM

摘要

一种感应发热辊装置和感应线圈温度检测机构，无需在辊主体的内部设置温度感测器，就能检测感应线圈的温度。感应发热辊装置具备：控制直流电源(7)、对感应线圈(32)间歇地施加直流电压的直流电压施加部(61)；根据由直流电压施加部(61)施加的直流电压和流过感应线圈(32)的直流电流计算感应线圈(32)的电阻值的电阻值计算部(62)；存储表示感应线圈(32)的电阻值和感应线圈(32)的温度的电阻值-温度关系的关系数据的关系数据存储部(63)；及根据通过电阻值计算部(62)得到的电阻值和关系数据表示的电阻值-温度关系计算感应线圈(32)的温度的线圈温度计算部(64)。; a resistance value calculation part 62 that calculates a resistance value of the induction coil 32 from the DC voltage applied by the DC voltage application part 61 and DC current flowing through the induction coil 32; a relational data storage part 63 that stores relational data indicating a resistance value-temperature relationship between the resistance value of the induction coil 32 and the temperature of the induction coil 32; and a coil temperature calculation part 64 that calculates the temperature of the induction coil 32 from the resistance value obtained by the resistance value calculation part 62 and the resistance value-temperature relationship indicated by the relational data.