Electric rice cooker and heating control method thereof

Abstract

The invention discloses a heating control method of an electric rice cooker. The electric rice cooker comprises a cooker body and a cover. The cover is provided with an internal steam passage and a negative pressure generator disposed in the steam passage. A heater is disposed in the cooker body. The heating control method includes the steps of a, heating, namely controlling the heater to heat with a first heating power P1, and stopping the negative pressure generator until a steam temperature Tt of the cover is not smaller than a first preset temperature T1; b, boiling, namely controlling the heater to heat with a second heating power P2, running the negative pressure generator until a cooker bottom temperature Tb of the bottom of the cooker body is not smaller than a second preset temperature T2. T2 is larger than T1. The heating control method has the advantages that cooking speed can be increased and bubble overflow prevention can be improved for the electric rice cooker. The invention further discloses the electric rice cooker.

Description

technical field [0001] The invention relates to an electric rice cooker and a heating control method of the electric rice cooker, in particular to an electric rice cooker with foam overflow prevention function and a heating control method of the electric rice cooker used for foam overflow prevention. Background technique [0002] In order to prevent foam from overflowing during the cooking process, there are several solutions in the prior art. The first is to realize overflow prevention through hardware, such as increasing the steam running channel through the steam valve and the anti-overflow cover, increasing the steam cooling area, increasing the The surface tension of the foam during movement and the barrier that increases the rise of the foam realize the suppression of foam overflow. However, this method is a static anti-overflow method, that is, after the hardware is determined, the anti-overflow performance is fixed, and the flexibility is poor; the second method is t...

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Problems solved by technology

However, this method is a static anti-overflow method, that is, after the hardware is determined, the anti-overflow performance is fixed, and the flexibility is poor; the second method is to achieve anti-overflow through software. Although the flexibility is good, it needs to reduce the opening time of the heater or reduce The heating power has the disadvantages of instability and hysteresis, and due to the need to reduce the on-time of the heater or reduce the heating power, the cooking time is long and the function of fast cooking cannot be achieved

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