Electric cooker and its anti-overflow detection system and time calculation method of steam foam

Abstract

The invention discloses an electric cooker, an anti-overflow detection system thereof and a time calculating method of steam foams for the system. The method comprises the following steps: detecting steam foams generated during the cooking process of the electric cooker through a foam detection device and generating a foam detection signal generated when the foam detection device detects steam foams; timing the duration for which steam foams are detected each time by the foam detection device through a first timer and timing an time interval between two adjacent steam foams detected by the foam detection device through a second timer; and controlling the first timer and the second timer according to a foam detection signal and calculating time spent in continuously detecting steam foams bythe foam detection device according to a timing period of the first timer and a timing period of the second timer. Accordingly, time spent in continuously detecting steam foams is accurately calculated, thereby reducing erroneous judgments. The method is safe and reliable and ensures cooking effect of the electric cooker, which brings convenience for application by a user.

Description

technical field [0001] The invention relates to the technical field of cooking appliances, in particular to an electric cooker and its anti-overflow detection system and a method for calculating the time of steam bubbles. Background technique [0002] Usually, in the process of using an electric cooker such as a rice cooker to cook rice, a large amount of foam will be generated, and when there is too much foam, it will overflow out of the rice cooker, which not only affects the cooking effect, but also brings troubles for cleaning. [0003] In the related art, some electric cookers are equipped with an overflow detection device to detect whether the electric cooker overflows during the boiling stage, and when it is detected that the electric cooker is about to overflow, take corresponding measures to ensure that the electric cooker is overflowing during the boiling stage. Overflow does not occur. [0004] However, in the above method, the anti-overflow detection device may ...

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Problems solved by technology

[0004] However, in the above method, the anti-overflow detection device may make a wrong judgment, for example, if no overflow occurs, it is judged as an overflow situation, so that the rice cooker is heated with a low power control, resulting in insufficient boiling, which affects the taste of the cooked food, or the overflow situation has been detected. Control the rice cooker to stop heating, so that the cooking cannot continue, causing inconvenience to the user

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