Induction cooker heating control method and device

Abstract

The invention discloses an induction cooker heating control method and device. The induction cooker heating control method comprises the steps that when an induction cooker is used for heating cookware, the induction cooker input current electric supply voltage and the induction cooker current heating current are detected, and meanwhile, the current connecting time of an IGBT in the induction cooker is read; when the connecting time of the IGBT is greater than a preset connecting threshold value, a ceramic pot heating current threshold value is confirmed according to the current electric supply voltage and the connecting time of the IGBT; whether the induction cooker current heating current is smaller than the ceramic pot heating current threshold value or not is judged; and when the induction cooker current heating current is smaller than the ceramic pot heating current threshold value, it is judged that the cookware is a ceramic pot, and the induction cooker is controlled to performanti-burning heating control over the ceramic pot according to preset ceramic pot anti-burning heating control rules. By means of the induction cooker heating control method and device, the situationthat the ceramic pot cracks due to burning when heated on the induction cooker can be prevented.

Description

technical field [0001] The invention relates to the field of electromagnetic heating equipment, in particular to a heating control method and device for an electromagnetic oven. Background technique [0002] With the continuous improvement of living standards, people's pursuit of healthy, safe and fashionable diet is also getting higher and higher. Since the heating efficiency of IH heating technology can reach more than 90%, its heating efficiency is much higher than that of traditional heating methods. IH heating technology is the most popular and safe heating technology in cooking appliances. When a ceramic pot is used as a cooking container, its biggest advantage is that it receives heat and dissipates heat evenly, and it can keep warm for a long time. However, ceramic pots are suitable for simmering, stewing or stewing foods with older textures. The technology of magnetically conductive metal film or high-temperature firing magnetically conductive metal compounded in e...

AI Technical Summary

Problems solved by technology

[0003] However, when the ceramic pot is used on the induction cooker, its thermal conductivity is worse than that of the iron pot. When the induction cooker heats the ceramic pot, the bottom temperature of the ceramic pot will rise when the ceramic pot is dry-fired without water, which can quickly reach or exceed 500°C, causing the ceramic pot to break and damage, which seriously limits the use of the ceramic pot on the induction cooker

Moreover, when a ceramic pot is used to cook soup on an induction cooker, it generally needs to be heated for a long time of more than two hours, and as the heating time prolongs, the soup in the pot will continue to evaporate and become less, and the heat balance point of the bottom of the ceramic pot will continue to change. However, when the thermal balance point of the bottom of the ceramic pot continues to move up, it will cause false protection or untimely dry protection, which will cause the ceramic pot to break and damage

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