Drainage control method of washing machine

Abstract

The invention relates to the technical field of washing machines, in particular to a drainage control method of a washing machine. In order to find the problems of unsmooth drainage and blocking in time, the drainage control method of the washing machine comprises the steps that before drainage, the amount of washing water in a washing barrel of the washing machine is obtained; in the drainage process, the accumulated drainage amount and the drainage flow speed of a water outlet of the washing machine are obtained in real time; according to the amount of the washing water, the accumulated drainage amount and the drainage flow speed, drainage control is conducted. When the difference between the amount of the washing water and the accumulated drainage amount is larger than a first drainageamount threshold, and when the drainage flow speed is smaller than a lowest flow speed threshold, drainage is stopped, and an alarm is given; when the difference between the amount of the washing water and the accumulated drainage amount is smaller than a second drainage amount threshold, and the drainage flow speed is smaller than a lowest flow speed threshold, drainage is stopped, and subsequentoperation is selectively executed, wherein the first drainage amount threshold is larger than a second drainage amount threshold. By means of the drainage control method, the problems of unsmooth drainage or blocking can be found in time, the drainage time can be saved, and the clothes washing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of washing machines, in particular to a washing machine drainage control method. Background technique [0002] With the improvement of people's living standards, washing machines have entered thousands of households and become the most commonly used household appliances. Generally speaking, the drain pipe of the existing washing machine is directly connected to the floor drain, and there is no filtering device inside. When the washing machine washes the clothes, debris, line segments and other sundries of the clothes will be discharged out of the washing machine along with the sewage. These debris will gradually accumulate, often leading to blockage of the sewer. [0003] In order to prevent the blockage of the sewer, some washing machines install filter screens in the drainpipe, so that the washing machine filters out the foreign matter in the water before the sewage flows out, preventing the foreign matte...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, the present invention proposes a washing machine drainage control method, which can detect possible unsmooth or clogged problems in the drainage process in time, and give an alarm in time

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