Judgment control method for water volume of water box

Abstract

The invention discloses a judgment control method for the water volume of a water box. The method comprises the steps of S1, starting a steam cooking device, and starting a water pump; S2, continuously collecting the real-time current of the water pump according to the same time interval, collecting n groups of current values in sequence, wherein each group comprises m real-time currents, whetherthe water flow of a water box arranged in the steam cooking device is continuously decreased or not is judged according to the comparison relation of sums[1]-sum[n] of the n groups of current values,and when it is judged that the water flow is continuously decreased, the step S3 is executed; S3, collecting the real-time current of the water pump, and judging whether the water box lacks water or not according to the relation between the real-time current and the sum[n] of the nth group of current values in the step S2. According to the invention, the n groups of current values of the water pump are collected, and whether water shortage occurs or not is judged according to the comparison relation of the sums of the n groups of current values, so that the problems that the judgment of the water adding point of water shortage of the water box through floater magnetic induction is inaccurate and the direct-current water pump only has the effect of pumping water to an evaporator are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of water volume control of a water box, and in particular relates to a method for judging and controlling the water volume of a water box. Background technique [0002] Most of the existing steam cooking devices, such as the water level monitoring function mode of the integrated steaming and roasting machine, use the magnetic induction of the float to judge the water volume of the water box. The float depends on the buoyancy of the water to control the connection with the reed switch, and the error in judging the amount of water is relatively large. For example, when using the steaming function, the water consumption of the water box is relatively large. After the water in the water box is quickly consumed, the steamer and oven detects a lack of water. Since the reed switch can receive the signal from the magnet in the float at this time, it will Mistakenly entered the water shortage alarm function, remindi...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a method for judging and controlling the water volume of a water box, by collecting n sets of current values ​​of the water pump, and judging whether there is water shortage according to the comparison relationship of the sum of the n sets of current values, effectively solving the existing problem There are problems that the judgment of the water filling point of the water shortage in the water tank through the magnetic induction of the float is not accurate, and the DC water pump only plays the role of pumping water to the evaporator

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