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Control system and method for limit balance of washing machine inner drum

A technology of balance control and washing machine, which is applied to the control device of washing machine, other washing machines, washing devices, etc., which can solve the problems of the inner cylinder hitting the outer cylinder, the large vibration and noise of the washing machine, etc., to eliminate the eccentricity of the inner cylinder and reduce the collision between the inner and outer cylinders Effect

Active Publication Date: 2018-03-16
HAIER GROUP TECHN R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the inner cylinder of the washing machine is rotating, the inner cylinder is eccentric due to the uneven distribution of clothes. If the eccentric force is too large, the inner cylinder will hit the outer cylinder, which will cause greater vibration and noise in the washing machine.

Method used

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  • Control system and method for limit balance of washing machine inner drum
  • Control system and method for limit balance of washing machine inner drum
  • Control system and method for limit balance of washing machine inner drum

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the limit balance control system of the washing machine inner drum includes a positioning system, a frequency converter, and an air gap sensor 2 . The positioning system is an arc motor 1, the frequency converter is electrically connected to the arc motor 1, the arc motor 1 is installed on the outer cylinder 3 of the washing machine, the air gap sensor 2 is installed on the inner wall of the outer cylinder 3, and the air gap sensor 2 is electrically connected to the frequency converter.

[0018] The arc motors 1 are installed in pairs and symmetrically on the outer cylinder 3 .

[0019] In this embodiment, there are two pairs of four arc motors 1, and the central lines of the two pairs of arc motors are orthogonal. That is, the four arc-shaped motors are evenly distributed on the outer wall of the outer cylinder.

[0020] An induction backboard corresponding to the height of the arc motor is installed on the inner cylinder 4. In the changing...

Embodiment 2

[0026] The limit balance control method of the inner drum of the washing machine uses a sensor to detect the air gap between the inner drum and the outer drum, and transmits the air gap signal to the frequency converter, and compares it with the air gap when the inner drum is stationary to obtain the change of the air gap, that is, to obtain the air gap. Gap error signal, and according to the change of the air gap, the force applied by the positioning system to the inner cylinder is controlled to change accordingly.

[0027] Due to the deviation of the inner cylinder, the air gap between the inner cylinder and the outer cylinder changes, that is, the processor in the frequency converter can calculate the deviation value of the inner cylinder spindle at this moment and its static state according to the air gap, and based on this deviation The value feedback signal is sent to the control positioning system, so that the force exerted on the inner cylinder changes accordingly.

[...

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PUM

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Abstract

The invention provides a limit balance control system for the inner drum of the washing machine, including a positioning system, a frequency converter, and an air gap sensor. The frequency converter is electrically connected to the positioning system installed on the outer drum of the washing machine. . When the inner cylinder rotates, the air gap sensor senses the air gap between the inner cylinder and the air gap, and transmits the sensed air gap information to the frequency converter, so that the current distributed by the frequency converter to the positioning system changes, thereby changing the force exerted by the positioning system on the inner cylinder. Force, reduce the eccentricity of the inner cylinder of the washing machine and the collision between the inner and outer cylinders. The invention provides a limit balance control method for the inner cylinder of a washing machine. The air gap between the inner cylinder and the outer cylinder is detected by a sensor, and the force exerted by the positioning system on the inner cylinder is controlled to change accordingly according to the change of the air gap, thereby reducing the inner cylinder of the washing machine. Eccentricity and the collision between the inner and outer cylinders.

Description

technical field [0001] The invention relates to a limit balance control system and method, in particular to a limit balance control system and method for an inner tub of a washing machine, belonging to the field of washing machine devices. Background technique [0002] When the inner cylinder of the washing machine is rotating, the inner cylinder is eccentric due to the uneven distribution of clothes. If the eccentric force is too large, the inner cylinder will hit the outer cylinder, resulting in greater vibration and noise in the washing machine. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a washing machine inner cylinder limit balance control system and method, which can reduce the eccentricity of the washing machine inner cylinder and the collision between the inner and outer cylinders. [0005] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F37/20D06F33/48D06F34/08
CPCD06F2105/00D06F34/08D06F33/48D06F2103/26
Inventor 劳春峰尹翔
Owner HAIER GROUP TECHN R&D CENT