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    • 1. 发明专利
    • ELECTRIC COOKING DEVICE
    • JPH11102780A
    • 1999-04-13
    • JP26032397
    • 1997-09-25
    • ZOJIRUSHI VACUUM BOTTLE CO
    • HOSHIKA KUNIHIROIRIE MASAHARU
    • H05B6/12F24C7/08H05B3/00
    • PROBLEM TO BE SOLVED: To positively detect abnormal heating also from deformation or the like of a heated object by stopping or reducing heating, when a control means determines the presence of regularity in the change of temperature detected by a temperature sensor. SOLUTION: In the case of a pot 8 being without cooked ingredients inside or being left unattended or the like for a long time, the temperature detected by a temperature sensor 3 changes with a fixed regularity. In the case of cooking being continued with cooked ingredients put in the pot 8, the temperature detected by the temperature sensor 3 changes irregularly with respect to the change of current-carrying quantity to an induction heating coil 2. Accordingly, if the state of detected temperature reaching the set temperature is repeatedly detected a specified number of times for each specified time, the presence of regularity is determined so that the state of the pot 8 can be detected. That is, whether to continue heating can be determined even though correct temperature cannot be detected by the temperature sensor 3 since an air layer is formed between the bottom face of the pot 8 and a glass plate 7, due to the deformation of the bottom face of the pot 8.