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Washing machine control method and washing machine

A control method and washing machine technology, applied to the control device of the washing machine, other washing machines, washing devices, etc., can solve the problems of noise, large drainage, etc., and achieve the effects of reducing noise, reducing startup noise, and avoiding noise

Active Publication Date: 2019-01-25
QINGDAO HAIER WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when foreign matter enters the impeller cavity of the brushless DC motor, the foreign matter that interferes with the impeller will still cause a lot of noise to the drainage

Method used

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  • Washing machine control method and washing machine
  • Washing machine control method and washing machine
  • Washing machine control method and washing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In this example, if figure 1 As shown, a washing machine control method is provided. The washing machine includes a drain pump, and the drain pump is equipped with an impeller driven by the drain pump motor to rotate, and the impeller can be controlled to change the direction of rotation; The detected value is compared with the set value to judge whether there is any foreign matter that interferes with the rotation of the impeller, and when the interference occurs, the direction of impeller rotation is changed to discharge the foreign matter.

[0055] In this embodiment, the drain pump of the washing machine is equipped with an impeller driven by a motor. During the drainage process, the impeller cavity is filled with discharged sewage. Since there are many impurities in the water, the foreign matter in it is easy to stay when the impeller starts and rotates in one direction. The impeller cavity interferes with the rotation of the impeller, which tends to increase the l...

Embodiment 2

[0073] The difference between this embodiment and embodiment 1 is:

[0074] In this example, if figure 2 As shown, after it is determined that there is foreign matter interfering with the impeller, the washing machine controls the impeller of the drain pump to alternately rotate in the first direction and the second direction to discharge the foreign matter.

[0075] In this embodiment, when the foreign matter is difficult to discharge and the noise continues, the impeller is controlled to alternately rotate in the first direction and the second direction, and the foreign matter is discharged by using the turbulence effect repeatedly generated by the fluid in the impeller cavity.

[0076] In this embodiment, the control method specifically includes the following steps:

[0077] S1. Start to perform drainage, and then perform step S2;

[0078] S2. The impeller of the drainage pump rotates in the first direction to drain water, and then execute step S3;

[0079] S3. Determin...

Embodiment 3

[0086] The difference between this embodiment and embodiment 1 is:

[0087] In this example, if image 3 As shown, the washing machine controls the impeller to rotate in the second direction and starts timing since the detection value of the working current of the drainage pump motor is greater than the first set value, and the timing ends after reaching the set time. The detection value is compared with the first set value, and the rotation direction of the impeller is adjusted according to the comparison result.

[0088] In this embodiment, the washing machine starts timing when the detection value of the working current of the drain pump motor is greater than the first set value, that is, when the impeller reverses and starts to discharge foreign matter, and judges whether the load is at a normal level when the preset foreign matter discharge time is reached. If it is normal, the drainage will resume, if it is not normal, adjust the direction of impeller rotation and conti...

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Abstract

The invention discloses a washing machine control method and a washing machine. The washing machine comprises a water discharge pump and is characterized in that an impeller driven by a water discharge pump motor to rotate is mounted on the water discharge pump, and the impeller can be controlled to change rotation direction; during washing machine water discharge, the detected value of the working currents of the water discharge pump motor is acquired and compared with a set value to judge whether foreign matter interfering impeller rotation exists or not, the rotation direction of the impeller is changed when interference occurs to discharge the foreign matter. The control method has the advantages that the foreign matter in an impeller cavity is discharged by controlling the rotation direction of the water discharge pump impeller to avoid the noise problem caused by the fact that the foreign matter interferes the impeller, and the method is suitable for being popularized and used.

Description

technical field [0001] The invention belongs to the technical field of washing machines, and in particular relates to a washing machine control method and the washing machine. Background technique [0002] Among the existing pulsator washing machines and drum washing machines, the market of the upper drainage type is more and more valued by consumers. Top-drainage washing machines usually use a drainage pump to extract and discharge the sewage in the washing tub. Currently, top-drainage pumps on the market often use AC motors. The block rotates, and the block hits the impeller repeatedly to make the impeller rotate accordingly, thus achieving the effect of drainage. However, the disadvantage of the AC drainage pump is that after the motor is started, the rotation direction of the impeller is random and uncontrollable, which greatly restricts the improvement of drainage efficiency and needs to be improved urgently. [0003] One solution is to use a brushless DC motor instea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/02D06F39/08
CPCD06F39/083D06F33/00Y02B40/00
Inventor 王兴张惠玉刘富震马庆岗余永昕
Owner QINGDAO HAIER WASHING MASCH CO LTD
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