JPS6434309A - Microcomputer controlled rice cooker - Google Patents

Abstract

PURPOSE: To prevent a rice cooker body from being heated to an abnormally high temperature and broken by detecting a temperature abnormality or time abnormality in rice cooking capacity judging process, and detecting an empty cooking state before the temperature becomes abnormally high in the following cooking process. CONSTITUTION: This rice cooker has a rice cooking capacity judging means for judging the rice cooking capacity by measuring the time required for the temperature change of a rice cooking pan to pass the time between prescribed two temperature by a temperature sensor 5 provided near the rice cooking pan and a microcomputer 10, and a rice cooking is performed with a proper heating power according to the rice cooking capacity judged by the rice cooking capacity judging means. An empty cooking state is detected by the rice cooking capacity judging means to stop the rice cooking operation, and the empty cooking state is displayed or alarmed by a light emitting diode 13, a buzzer 14 or the like. Namely, an abnormality in rice cooking capacity judgment of rice cooking operation is detected to detect the empty cooking state, so that a rice cooker body can be prevented from being heated to an abnormally high temperature and damaged.