Electric rice cooker

Abstract

The present invention provides an electric rice cooker which does not discharge steam. The electric rice cooker comprises a pressure regulating valve which is arranged on an inner cover and used for limiting discharge of steam in an inner pot and maintaining a certain pressure, a steam channel used for discharging the steam discharged from the pressure regulating valve outside of a cover, a heating mechanism used for heating the inner pot, and a control mechanism used for controlling electric power of the heating mechanism; wherein, the cover is provided with a first temperature sensor used for detecting the temperature in the inner pot, the steam channel is provided with a second temperature sensor used for detecting discharge of the steam from the pressure regulating valve through temperature changes, the control mechanism uses the heating mechanism to heat the inner pot according to a prescribed rice cooking process, and controls the electric power supplied to the heating mechanism in the way as follows, when the temperature of the first temperature sensor reaches a prescribed temperature, the control mechanism reduces the electric power supplied to the heating mechanism, and when the second temperature sensor detects the discharge of the steam, the control mechanism enables the electric power supplied to the heating mechanism to be reduced more than the above reduced electric power, so as to maintain the pressure in the inner pot to be higher than the atmospheric pressure within the limits that the pressure regulating valve as far as possible does not perform a pressure regulating motion.

Description

technical field [0001] The present invention relates to a rice cooker which adjusts the pressure applied in the inner pot to cook rice deliciously and reduces the steam discharged during the cooking. Background technique [0002] The existing rice cooker focuses on cooking rice deliciously. [0003] However, along with changes in housing environment and living environment, there is a tendency to dislike the large amount of steam generated during rice cooking. [0004] Therefore, as shown in Patent Document 1, there is an electric rice cooker in which, after rice cooking is started, the operation of the pressure regulating valve is detected by a steam temperature sensor that detects the operation of the pressure regulating valve that adjusts the pressure inside the inner pot to detect the steam discharged. After that, the heating amount of the heating mechanism is reduced and the boiling is continued, and the steam discharged from the pressure regulating valve is suppressed ...

AI Technical Summary

Problems solved by technology

[0009] In the conventional example of Patent Document 1, even if the amount of heating supplied to the heating mechanism is reduced after the steam discharged by the operation of the pressure regulating valve is captured, the temperature does not drop immediately due to the large heat capacity of the inner pot and the steam continues to be generated. subject

[0010] In addition, Patent Document 2 shows a structure in which steam is detected by two sensors, a cover sensor for detecting the temperature of the radiator plate and a steam sensor for detecting the discharge temperature of the steam discharge path, and the amount of cooked rice is judged by quickly reaching the transition temperature. In addition, in the case of boiling detection using a steam sensor, there is a problem that the timing of reducing the heating amount is delayed in order to prevent the water from boiling and overflowing in the detection of steam passing through the pressure regulating ball as in the above-mentioned Patent Document 1.

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