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Self-cleaning method for filter assembly of washing machine

a washing machine and filter assembly technology, applied in the field of washing machines, can solve the problems of filter membrane, large waste of water resources, large water consumption of the entire laundry process, etc., and achieve the effect of prolonging the service life of the filter assembly

Inactive Publication Date: 2017-10-26
QINGDAO HAIER SMART TECH R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a washing machine with a self-cleaning filter assembly that can prolong its lifespan and ensure high filtration performance. The self-cleaning process of the washing machine automatically cleans the filter assembly without user intervention, except for turning off the machine. This thorough cleaning, carried out every time the washing machine is used, prevents blockages and damage to the filter assembly, thus reducing the frequency of maintenance and repair. The invention also includes a special cleaning of the filter assembly to further prolong its lifespan and ensure high filtration performance.

Problems solved by technology

The water consumption of the entire laundry process is relatively large, and the water resource is greatly wasted.
However, with the increase in the number of times of washing in the washing machine, separated substances and some other impurities are gradually accumulated on the surface of a filter membrane, resulting in the blockage and pollution problems of the filter membrane, so that the filtering effect thereof will be greatly affected.
As some of the current washing machines with an automatic cleaning function on the filter assembly, however, the filter assembly in the existing washing machines is not thoroughly cleaned, and the cleaning agent or the like is easily remained on the filter assembly.
Therefore, how to thoroughly clean the filter assembly is a problem to be solved in the field of household washing machines.

Method used

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  • Self-cleaning method for filter assembly of washing machine
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  • Self-cleaning method for filter assembly of washing machine

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Embodiment Construction

[0031]FIG. 1 is a schematic diagram of a washing machine according to an embodiment of the present invention. The washing machine may comprise a washing tub 12, a drainage pump 22, and a filter assembly. The filter assembly comprises a front filter 24 and an ultrafiltration membrane assembly 26. The washing tub 12 is usually composed of an outer tub and an inner tub which is rotatable within the outer tub. An upper part of the washing tub 12 is provided with a fresh water inlet which is connected to a water supply port through a pipeline 11, and when a valve 13 on the pipeline 11 is opened, fresh washing water or fresh rinsing water may enter the washing tub 12. A lower part of the washing tub 12 is provided with a drainage port, and the drainage port is in communication with the filter assembly via a drainage pump 22 through a pipeline. A water output port of the ultrafiltration membrane assembly 26 is in communication with the washing tub 12 through a water intake pipeline 14.

[003...

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PUM

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Abstract

Provided is a self-cleaning method for a filter assembly of a washing machine, the method comprising: receiving a user operation instruction for starting a self-cleaning process; executing the self-cleaning process, so as to clean the filter assembly of the washing machine, and before the self-cleaning process is completed, only receiving user operation instructions for turning off the washing machine, pausing the self-cleaning process and unpausing the self-cleaning process, and prohibiting receipt of or ignoring the user operation instructions other than user operation instructions for turning off the washing machine, pausing the self-cleaning process and unpausing the self-cleaning process. According to the present invention, the filter assembly of the washing machine is thoroughly cleaned, prolonging the service life of the filter assembly in the washing machine and ensuring that the filter assembly always has a high filtration flux.

Description

TECHNICAL FIELD[0001]The present invention relates to a washing machine, in particular to a self-cleaning method for a filter assembly of a washing machine.BACKGROUND OF THE INVENTION[0002]The laundry process of the existing conventional washing machines usually comprises water intake, washing-spin-drying-drainage, repeated rinsing-spin-drying-drainage, etc., wherein the washing and each rinsing need to consume a lot of water. The washed or rinsed water is drained to the outside of the washing machine through a drainage pipe. The water consumption of the entire laundry process is relatively large, and the water resource is greatly wasted.[0003]In order to achieve the purpose of water saving, a filter assembly can be used to filter the water and / or rinsing water of the washing machine for recycling. However, with the increase in the number of times of washing in the washing machine, separated substances and some other impurities are gradually accumulated on the surface of a filter me...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D06F33/02D06F35/00D06F39/08D06F39/10
CPCD06F33/02D06F39/10D06F39/082D06F35/008D06F33/43D06F2101/00D06F2103/42D06F2105/58
Inventor LAO, CHUNFENGWANG, CHUNXUZHANG, JINGJINGHAO, SHILONGLI, YIMIN
Owner QINGDAO HAIER SMART TECH R & D CO LTD
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