Dewatering distributed control method of washing machine

A distributed control, washing machine technology, applied in the control device of washing machine, washing device, textile and paper making, etc., can solve the problems of displacement, low energy consumption, non-drying and so on

Active Publication Date: 2014-12-24
QINGDAO HAIER DRUM WASHING MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the problems of non-drying, large vibration, and displacement when dehydrating woolen clothes, so as to better solve market complaints, and provide a method for controlling the dehydration distribution of wash

Method used

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Experimental program
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Effect test

Embodiment 1

[0045] Such as figure 1 As shown, the dehydration distribution of the washing machine according to the present invention includes an initial stage of confirming the eccentricity value S1, a process of repeatedly confirming the eccentricity value of the load S2, and a speed fluctuation value detection process S3.

[0046] The initial stage of confirming the eccentricity value is: controlling the inner cylinder to reverse at the speed V8 for a certain period of time, rotating forward to the speed V9 and maintaining it for a certain period of time, and then increasing to the speed V1, detecting the maximum speed of the inner cylinder in one revolution, The maximum speed must be within a certain range, otherwise it will return to forward or reverse according to the system judgment, detect the eccentricity value P1 of the load, and compare it with the system preset eccentricity limit X1. The detected eccentricity value P1 must be less than the system preset eccentricity limit Value, ot...

Embodiment 2

[0059] Specific as figure 2 As shown, the distribution control method before washing machine dehydration includes the following steps:

[0060] Set N and M represent the mark code in the program, N represents the corresponding times of changing the acceleration value in a single distribution, M represents the corresponding times of changing the set eccentric value in the distribution, that is, N is the number of times to return to the second stage, M It is the number of times through the second stage in a distribution, initial value: N=0; M=0, return to step (1), N returns to zero, the value of M remains unchanged, the maximum value of N can be set to 3, the maximum value of M For the system setting, the system sets the eccentricity value corresponding to the M value.

[0061] (1) Control the inner cylinder to reverse for 6 seconds at a speed of 50 revolutions per minute to prevent winding when the load rotates in one direction. At this time, N=0, M remains unchanged;

[0062] (2)...

Embodiment 3

[0076] The distribution before dehydration is a random process, and the time required cannot be accurately predicted. In the flow chart of the washing machine, the time is usually not allocated in advance, that is, the time is stopped during the distribution. However, in order to prevent the distribution from being unsuccessful and the process from running downwards, an untimed limit can be implemented. In principle, this time is specified as 5 minutes (adjustable depending on different programs and the highest set speed), that is, when the distribution time exceeds 5 minutes If it is still unsuccessful, the timing will be forced to start, and the inherent dehydration time will be occupied thereafter, until the dehydration time is also used up, the distribution before this dehydration fails, and the next process is transferred.

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Abstract

The invention relates to a dewatering distributed control method of a washing machine. Before the washing machine starts dewatering, an inner tub is controlled to speed up to a set speed V1 till stableness, a step of repeatedly determining an eccentric value of a load is added, and the eccentric value of the load is corrected after the eccentric value of the load meets set conditions; during the step of repeatedly determining the eccentric value of the load, the eccentric value of the load is repeatedly detected after the inner tub is controlled to slow down each time, multiple preset eccentric limits which gradually decrease are preset in order, and each preset eccentric limit corresponds to a corresponding distribution phase; an actual detected eccentric value is compared to the preset eccentric limits to judge the distribution phase corresponding to the actual detected eccentric value, and the inner tub is controlled to rotate into the corresponding distribution phase. The eccentric value of the load is repeatedly determined in a gradual decrease manner and corrected, dewatering is stable, vibration is low, noise is low, energy consumption is low, dewatering rate is high, and the service lives of parts of the washing machine, such as a bearing and a reducer, are prolonged.

Description

Technical field [0001] The invention relates to the field of washing equipment, in particular to a washing machine dehydration distribution control method. Background technique [0002] Most of the distribution curves used by the existing washing machines cannot achieve the best distribution effect, especially for objects that have a lot of water absorption and small surface area, such as bath towels, woolen sweaters and other loads, even after a long time. At the end of the distribution, it cannot be evenly distributed, cannot be dried normally, or even used for a long time, resulting in abnormal vibration or displacement of the drum, which brings inconvenience to users and wastes electric energy. In order to solve the above-mentioned problems, many manufacturers mostly adopt the scheme of improving the structure of the washing machine to obtain the effect of uniform load distribution. At the same time, some manufacturers use the method of controlling the speed of the washing m...

Claims

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Application Information

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IPC IPC(8): D06F33/02
CPCD06F33/00D06F2212/00
Inventor 黄世坤何云峰梁青李泽恒
Owner QINGDAO HAIER DRUM WASHING MACHINE
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