A pressure type electric cooker and a control method therefor

Abstract

The invention provides a pressure type electric cooker and a control method therefor. The pressure type electric cooker comprises an upper cover which is snapped to a cooker body and used for sealing the cooker body; a temperature control device used for collecting the temperature at the bottom of an inner pot is arranged in the cooker body; the upper cover is inside provided with a pressure valve used for blocking an exhaust passage and an execution component used for pressure rise and pressure relief; the execution component gets away from or close to the top of the pressure valve. The control method for the pressure type electric cooker comprises the steps that the pressure of the electric cooker rises, the stress of the pressure valve is balanced, rice and water boil, and the execution component gets away from the pressure valve. The pressure rise and pressure relief of the cooker body of the electric cooker are realized through the positional relationship between the pressure valve and the execution component and the drive mode of the pressure valve; through the self-weight of the pressure valve, the magnetic attraction magnitude of the execution component, the air pressure of the exhaust passage and the change from a closed state to an open state of the pressure valve, the pressure state in the electric cooker can be detected without high-precision sensors; the pressure type electric cooker is simple in structure and high in reliability and the scheme cost can be effectively controlled by reducing unnecessary sensors; the pressure type electric cooker can guarantee that all rice in the cooker can be heated and gelatinated uniformly.

Description

technical field [0001] The invention relates to the field of kitchen cooking utensils, in particular to a pressure-type electric rice cooker and a pressure-controlled cooking method thereof. Background technique [0002] In modern kitchens, rice cookers are more and more widely used. Traditional cooking methods, such as steaming, boiling, stewing, simmering, braising, etc., can be realized with rice cookers, and because rice cookers do not need regular monitoring, easy to operate, stable and reliable, etc., they are respected and loved by people. [0003] The principle of a pressure rice cooker is very simple, because the boiling point of water is affected by the air pressure, the higher the air pressure, the higher the boiling point. On high mountains and plateaus, the air pressure is less than 1 atmospheric pressure, water can boil at less than 100°C, and eggs cannot be boiled with ordinary pots. When the air pressure is greater than 1 atmospheric pressure, water will bo...

AI Technical Summary

Problems solved by technology

The rice cooker seals the water quite tightly, and the water vapor produced by the evaporation of water cannot diffuse into the air, but can only be kept in the rice cooker, so that the air pressure inside the rice cooker is higher than 1 atmospheric pressure, and is within a controllable safety range , also makes the water boil when it is higher than 100°C, so that a high temperature and high pressure environment is formed inside the rice cooker, and the processed ingredients are easy to cook quickly, and they are quite crispy

[0004] At present, there are mainly two types of pressure rice cookers. One is that the pressure valve of the rice cooker does not move during the entire cooking process. In this type of rice cooker, either the pressure valve is always in a sealed state during the entire cooking process, and the rice does not boil and exhaust. In the boiling stage, the dynamic balance of steam pressure and pressure valve causes slight boiling. In both cases, the rice cooked in the rice cooker cannot be fully boiled, so that the gelatinization of various parts of the rice is not uniform, and the taste of the whole pot of rice is not good. ;

[0005] In order to solve the above problems, another electric rice cooker senses the temperature or pressure state in the inner pot through the sensor device set during the boiling stage of rice cooking, and drives the pressure valve to open when the pressure rises to a certain parameter to promote the production of rice cooked by the electric rice cooker. The effect of sudden boiling and tumbling, this method can promote the uniform gelatinization of the whole pot of rice, and improve the uniformity of rice taste; but this kind of rice cooker needs to be equipped with a relatively high-precision pressure or temperature sensor to control the action time of the pressure valve, the system control is complicated and the cost is high. higher

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