Control method and device for preventing sudden change of gas volume in dishwasher inner cavity

Abstract

The invention discloses a control method and a control device for preventing sudden change of volume of gas in an inner cavity of a dish washing machine. The method comprises steps of S1, detecting anevent, specifically, a cover opening signal, a water inlet signal and a water outlet signal of the dish washing machine and water temperature and air temperature data in an inner cavity are collected, whether thermal expansion / cold contraction occurs or not is judged according to the cover opening signal, the water inlet signal and the water outlet signal, if thermal expansion / cold contraction does not occur, operation is ended, if thermal expansion / cold contraction occurs, operation continues; S2, judging conditions, whether a thermal expansion type or a cold contraction type occurs is judged; S3, judging conditions, the type of a motor adopted by the dish washing machine is judged, wherein the judging result is an adjustable-speed motor or a non-adjustable-speed motor; and S4, executingthe task, an execution scheme is selected according to the judgment result of the steps S2-S3. The method is advantaged in that loss of dish-washing machine parts caused by thermal expansion and coldcontraction of the inner cavity of the dish washing machine is effectively prevented, and a problem of scalding during uncovering is solved.

Description

technical field [0001] The invention relates to the technical field of dishwashers, in particular to a control method and a control device for preventing a sudden change in gas volume in the inner cavity of the dishwasher. Background technique [0002] A dishwasher is a device that automatically cleans tableware such as bowls, chopsticks, plates, plates, knives, and forks. Fully automatic dishwashers on the market can be divided into two types: household and commercial. Household fully automatic dishwashers are only suitable for households. There are mainly cabinet type, desktop type, sink integrated type and integrated type. It is divided into five categories: cabinet type, hood type, basket type, belt type, and ultrasonic. It reduces labor intensity, improves work efficiency, and improves sanitation for the cooks in restaurants, hotels, and canteens of government agencies. [0003] Common non-ultrasonic dishwashers include inner cavity, water inlet module, heating module,...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides a control method and a control device for preventing sudden changes in the gas volume in the inner cavity of the dishwasher, so as to prevent the loss of the components of the dishwasher caused by the thermal expansion and contraction of the inner cavity of the dishwasher, and solve the problem of opening and closing. The problem of burning when covering

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