Humidity detection assembly for microwave oven, microwave oven and control method thereof

Abstract

The invention discloses a humidity detection assembly for a microwave oven. The humidity detection assembly comprises a humidity sensor and a detection circuit, wherein the humidity sensor comprises a first electrode and a second electrode, wherein the first electrode is a metal electrode, the second electrode is a piezoelectric detection electrode, the quantity of electric charge on the second electrode is changed along with the change of the humidity in wet gas; the detection circuit is connected with the humidity sensor, and can generate a humidity detection signal according to the quantity change of the electric charge on the second electrode in the humidity sensor. The humidity detection assembly can realize the accurate detection on the humidity in the cavity in microwave oven cooking when being used for the microwave oven, and is low in cost and reliable in performance. The invention further discloses a microwave oven provided with the humidity detection assembly and a control method of the microwave oven.

Description

technical field [0001] The invention relates to the technical field of microwave ovens, in particular to a humidity detection assembly for a microwave oven, a microwave oven with the humidity detection assembly and a control method thereof. Background technique [0002] Currently, microwave ovens are gaining more and more popularity among users because of their fast cooking. However, the menu functions of traditional microwave ovens are complicated to operate. The user needs to select the type of food, then select the portion, and then press start to start cooking. The operation is complicated, which brings inconvenience to people's use. With the microwave oven using the new humidity sensing technology, the user can select the type of food and start cooking directly without setting the cooking time and firepower. The machine automatically starts cooking through intelligent humidity sensing. [0003] Usually, a general humidity sensing microwave oven uses a thermistor type h...

AI Technical Summary

Problems solved by technology

However, when the atmosphere is mixed with cooking fumes, other special gases or air pressure changes, the measurement results will be affected to varying degrees, which will cause the cooking process to be invalid or the food cannot be fully cooked

[0004] Therefore, the disadvantage of the prior art is that the moisture generated in the microwave oven cannot be accurately detected during cooking, resulting in invalid cooking process or insufficient cooking of food, which brings inconvenience to people's lives.

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