DRAINING AND SPINNING CONTROL METHOD FOR SELF-CLEANING LAUNDRY MACHINE

Title:

DRAINING AND SPINNING CONTROL METHOD FOR SELF-CLEANING LAUNDRY MACHINE

Document Type and Number:

WIPO Patent Application WO/2017/080364

Kind Code:

A1

Abstract:

Provided is a draining and spinning control method for a self-cleaning laundry machine. The method comprises: arranging cleansing particles (4) in a space (3) between an inner drum (2) and an outer drum (1) of a laundry machine to cleanse an outer wall of the inner drum (2) and an inner wall of the outer drum (1) with the movement of a water flow, and receiving a draining instruction to open a draining valve (5); determining a quantity of the cleansing particles (4) per unit water volume in the space (3); and controlling a rotation speed of the inner drum (2) to adjust a frequency of friction and collision between the cleansing particles (4) and the walls of the inner and outer drums. The laundry machine arranges at least two control phases for draining and spinning processes according to the quantity of the cleansing particles (4) per unit water volume in the space (3). Different rotation manners are set for the inner drum in the respective control phases. In a control phase where the quantity of the cleansing particles (4) per unit water volume is larger, the rotation speed of the inner drum (2) is higher. During the draining and spinning processes, the laundry machine selects a corresponding control phase by detecting the quantity of the cleansing particles (4) per unit water volume in the space (3). The control method of the invention is simple, and can completely remove dirt from a drum wall of a laundry machine, thereby keeping a washing environment clean, preventing re-contamination, and improving clothes cleaning performance.

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