A self-cleaning washing machine drainage control method

Abstract

The invention discloses a method for controlling drainage and dehydration of a self-cleaning washing machine. The space between the inner and outer tubs of the washing machine is provided with cleaning particles that clean the outer wall of the inner tub and the inner wall of the outer tub with the movement of water flow, receive a drainage instruction, and open a drainage valve; The number of cleaning particles per unit volume in the water; control the speed of the inner barrel, and adjust the frequency of friction and collision between the cleaning particles and the inner and outer barrel walls. The washing machine divides the dehydration process into at least two control stages according to the number of cleaning particles per unit volume in the water in the space. Each stage has a different rotation mode of the inner tub. The higher the number of cleaning particles per unit volume in the water, the higher the rotation speed of the inner tub . During the dehydration process, the washing machine selects the corresponding control stage according to the number of cleaning particles per unit volume in the water in the detection space. The control method of the invention is simple, can completely remove the dirt on the wall of the washing machine barrel, keep the washing environment clean, prevent secondary pollution, and improve the washing rate of clothes.

Description

technical field [0001] The invention relates to the field of washing machines, in particular to a control method for a washing machine, in particular to a control method for draining and dehydrating a self-cleaning washing machine. Background technique [0002] Existing washing machines use a motor to drive the pulsator at the bottom of the inner tub to alternately rotate clockwise and counterclockwise to drive the clothes to roll and rotate, so that the clothes and clothes, the clothes and the pulsator, and the clothes and the barrel rub against each other to achieve the purpose of washing the clothes. [0003] When doing laundry, the water contains various solid particles, such as: scale formed by calcium ions and calcium carbonate in water, free matter in laundry detergent soap, lint from washed clothes, and particles left by the human body on the clothes to be washed. Oily proteins and various organic residues, bacteria and other substances introduced by the laundry form...

AI Technical Summary

Problems solved by technology

[0006] 1. This method only performs bucket cleaning when the user selects the bucket cleaning program and drains water for the last time. The cleaning intensity is poor, and it cannot eliminate the root cause of dirt formation, that is, the dirt accumulated in each laundry

[0007] 2. When draining water, when the water level drops from the first set water level to the second set water level after opening the drain valve, the barrel is still, and the dirt in the sewage can still adhere to the wall of the barrel, and the cleaning is not thorough

[0008] 3. This method only uses the impact force of the water flow driven by the inner barrel to clean the barrel wall, and it is difficult to guarantee the effect of cleaning the barrel

However, when this solution drains water, controlling the low-speed rotation of the inner barrel does not drive the cleaning particles to collide with the barrel wall. It is only to reduce the cleaning particles remaining between the inner and outer barrels, so that the cleaning particles can be completely collected and reduce the collision noise caused by dehydration. It is also impossible to strengthen the cleaning of the bottom wall of the inner and outer barrels and the lower part of the peripheral wall

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