Control method and device for drawer-type microwave oven

Abstract

The invention provides a control method for a drawer-type microwave oven. The method comprises the steps that 1, the motor speed of a motor in the drawer-type microwave oven during normal operating is collected; and 2, a speed control signal is sent to the motor according to the motor speed for enabling the motor to operate at a constant speed. Accordingly, the invention further provides a control device for the drawer-type microwave oven. Through the technical scheme, when foods of different weights are put into the drawer-type microwave oven, a consistent and reasonable speed can be obtained, so that the problems that the inertia is uncertain, and food displacement is produced are prevented.

Description

technical field [0001] The invention relates to the technical field of microwave ovens, in particular to a control method for a drawer-type microwave oven and a control device for a drawer-type microwave oven. Background technique [0002] The current drawer-type microwave oven is an open-loop control method when opening and closing the drawer. The controller outputs a fixed control signal to the motor to push the drawer switch. Because there is no feedback signal or no analysis and processing of the feedback signal, the controller itself It is not known whether the output speed meets the conditions. [0003] The disadvantage of the existing technology is that if the user puts in food of different weights, such as 0.1Kg food and 10Kg food, the resistance to the motor is obviously different, and the motor will generate a fixed drive signal. With different rotation speeds, the speed of opening and closing the drawer will change due to the weight of the load. The heavier the f...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the existing technology is that if the user puts in food of different weights, such as 0.1Kg food and 10Kg food, the resistance to the motor is obviously different, and the motor will generate a fixed drive signal. With different rotational speeds, the speed of opening and closing the drawer will change due to the weight of the load. The heavier the food, the slower the speed of opening and closing the drawer, and vice versa.

Unfixed speed leads to uncertain inertia when opening and closing the drawer. Uncertain inertia may cause food to shift during the process of opening and closing the drawer, affecting the cooking effect, or liquid food may splash out of the cooking utensils

At the same time, the judgment of encountering obstacles is handled by judging that the switching speed drops to a certain set speed, and the unfixed speed has adverse interference on judging the intelligent stop when encountering obstacles (anti-collision and anti-pinch judgment).

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