Cooking utensil control method and cooking utensil

Abstract

The invention discloses a control method of a cooking utensil, the cooking utensil comprises a heating device, a control device, a temperature detection device and a fan, the method comprises the following steps: controlling the heating device to heat, controlling the fan to keep closed, and obtaining the temperature W1 of a power tube at an initial moment t0, the heating device starts to work from the initial moment t0 and reaches the first moment t1 after lasting for the first preset working duration T1, the temperature W2 of the power tube at the first moment t1 is obtained, and the first temperature change rate V1 of the power tube is calculated; and the fan is controlled to be started, the heating device starts from the first moment t1 and continues for a second preset working duration T2 to reach a second moment t2, the temperature W3 of the power tube at the second moment t2 is obtained, and the second temperature change rate V2 of the power tube is calculated. According to the method, whether the fan is correctly installed or damaged or not can be directly judged according to the temperature change rate of the power tube, and the phenomenon that cooking is interrupted or even a cooking utensil is damaged due to the fact that the fan is abnormal only in the cooking process is avoided.

Description

technical field [0001] The invention relates to the technical field of cooking utensils, in particular to a control method for cooking utensils and the cooking utensils. Background technique [0002] Existing IH rice cookers generally control whether the heating coil plate resonates with the capacitor to heat the inner pot by controlling the on and off of the power tube. During the heating process of the rice cooker, the power tube such as the insulated gate bipolar transistor IGBT will Higher heat is generated. Once the safe temperature is exceeded, it will cause IGBT overheating protection, and the cooking utensils will no longer work. In order to help the IGBT dissipate heat, the fan is usually used to blow the IGBT to cool down, so that the IGBT is at a safe working temperature. [0003] However, the user cannot know whether the fan is installed correctly or whether it is damaged before operating the cooking utensil for cooking or during the cooking process, which may ca...

AI Technical Summary

Problems solved by technology

[0002] Existing IH rice cookers generally control whether the heating coil plate resonates with the capacitor to heat the inner pot by controlling the on and off of the power tube. During the heating process of the rice cooker, the power tube such as the insulated gate bipolar transistor IGBT will High heat is generated. Once the safe temperature is exceeded, it will cause IGBT overheating protection, and the cooking utensils will no longer work. In order to help IGBT dissipate heat, fans are usually used to cool down the IGBT so that the IGBT is at a safe working temperature.

[0003] However, the user cannot know whether the fan is installed correctly or whether it is damaged before operating the cooking utensil for cooking or during the cooking process, which may cause cooking to be interrupted due to the overheating protection of the IGBT during the cooking process, thereby wasting food

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