Self-diagnosis method for blockage of filter net of draining pipe and washing machine

A technology for drainage pipes and filter nets, which is applied to the control device of washing machines, washing devices, textiles and papermaking, etc., which can solve problems such as poor drainage and easy blockage, and achieve the effect of avoiding the replacement or cleaning of filter nets

Active Publication Date: 2018-07-03
QINGDAO JIAONAN HAIER WASHING MACHINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the filter screen is prone to clogging after long-term use. When the clogging occurs, the filter screen should be cleaned in time, otherwise it will cause problems such as poor drainage.

Method used

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  • Self-diagnosis method for blockage of filter net of draining pipe and washing machine
  • Self-diagnosis method for blockage of filter net of draining pipe and washing machine
  • Self-diagnosis method for blockage of filter net of draining pipe and washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, this embodiment provides a method for self-diagnosis of drain filter blockage, including:

[0030] S101, draining water for the nth time, opening the drain valve and timing,

[0031] S102, judging whether the first set water level is reached,

[0032] If yes, execute S103, if not, return to S101,

[0033] S103. Save the time T1 for reaching the first set water level,

[0034] S104, continue timing,

[0035] S105, judging whether the second set water level is reached,

[0036] If so, execute S106, if not, execute S112,

[0037] S106. Save the time T2 for reaching the second set water level,

[0038] S107, calculate the average value of the nth drainage speed according to the water level and T1, T2, and save,

[0039] S108, counting the variation trend of the average value of the n-m time to the n-th time drainage speed,

[0040] S109, judging whether the average value of the drainage velocity decreases gradually,

[0041] If yes, execute ...

Embodiment 2

[0059] like figure 2 As shown, this embodiment provides a method for self-diagnosis of drain filter blockage, including:

[0060] S201, draining water for the nth time, opening the drain valve and timing,

[0061] S202. Judging whether the first set water level is reached,

[0062] If yes, execute S203, if not, return to S201,

[0063] S203. Save the time T1 for reaching the first set water level,

[0064] S204, continue timing,

[0065] S205, judging whether the second set water level is reached,

[0066] If yes, execute S206, if not, execute S213,

[0067] S206. Save the time T2 for reaching the second set water level,

[0068] S207, calculate the drainage time according to T1 and T2, and save it,

[0069] S208. Calculate the average value of drainage time from the n-mth time to the nth time, the n-2mth time to the n-mth time, ... the n-pm time to the n-(p-1)mth time,

[0070] S209, counting the variation trend of the average value of p drainage time,

[0071] S210...

Embodiment 3

[0083] like image 3 As shown, this embodiment provides a method for self-diagnosis of drain filter blockage, including:

[0084] S301, draining water for the nth time, opening the drain valve and timing,

[0085] S302. Judging whether the first set water level is reached,

[0086] If yes, execute S303, if not, return to S301,

[0087] S303. Save the time T1 for reaching the first set water level,

[0088] S304, continue timing,

[0089] S305, judging whether the second set water level is reached,

[0090] If yes, execute S306, if not, execute S312,

[0091] S306. Save the time T2 for reaching the second set water level,

[0092] S307, according to the water level and T1, T2 calculate the average value of the nth drainage speed and the average value of the drainage time, and save,

[0093] S308, counting the variation trend of the average value of drainage speed and the average value of drainage time from the n-mth time to the nth time,

[0094] S309, judging whether t...

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Abstract

The invention discloses a self-diagnosis method for the blockage of a filter net of a draining pipe and a washing machine, relating to the technical field of blockage detection of filter nets. The self-diagnosis method comprises the steps of acquiring an average value of draining speeds and/or draining time of effluent in a set time period, storing, carrying out statistics on the variation trend of the average values of the draining speeds and/or the draining time in multiple continuous set time periods, and if the average values of the draining speeds gradually decrease in the multiple continuous set time periods and/or the average values of the draining time gradually increase in the multiple continuous set time periods, giving out a prompt that the filter net of the draining pipe is blocked. The invention further protects the washing machine. The self-diagnosis method is used for judging whether the filter net of the draining pipe is blocked through statistics on the variation trendof the average values of the draining speeds and/or the draining time in the multiple continuous set time periods, and the situation that a diagnosis result is incorrect due to single numerical valuefloatation does not easily occur.

Description

technical field [0001] The invention relates to the technical field of filter clogging detection, in particular to a self-diagnosing method for filter clogging in drain pipes and a washing machine. 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. As time goes on, these debris will gradually accumulate, often leading to blockage of household drainage systems. [0003] In order to prevent the clogging of the drainage system, a filter screen is installed in the drainpipe in the prior art, so that the foreign matter in the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02
CPCD06F33/00
Inventor 舒海吕佩师许升黄振兴陈玉玲
Owner QINGDAO JIAONAN HAIER WASHING MACHINE
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