Roller washing machine dewatering control method based on eccentricity judgment of 3D displacement sensor

A technology of displacement sensor and drum washing machine, which is applied in the control device of washing machine, washing device, textile and paper making, etc. It can solve the impact of vibration, noise, safety and life of washing machine, and can not test the vibration of the outer tub and the whole machine in real time and accurately Conditions, unsatisfactory dehydration effect, etc.

Active Publication Date: 2016-06-01
WHIRLPOOL CHINA
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Problems solved by technology

However, when the clothes are dehydrated, the moisture content of the clothes is constantly decreasing, and the actual eccentricity, position and load of the washing machine are changing all the time. Therefore, the existing dehydr

Method used

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  • Roller washing machine dewatering control method based on eccentricity judgment of 3D displacement sensor

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[0086] The present invention will be further described below with reference to the drawings and specific embodiments.

[0087] Such as figure 1 As shown, a drum washing machine dehydration control method based on 3D displacement sensor to determine eccentricity uses a 3D displacement sensor installed on the outer tub to detect the vibration displacement of the outer tub in real time during the dehydration process, and determine where the eccentricity in the dehydration inner tub is based on the vibration of the outer tub Position, adjust the dehydration curve.

[0088] Specifically, it includes the following steps:

[0089] (1) Start spinning and adjust the clothes.

[0090] (2) Set the spin speed of the washing machine to 90rpm, when the spin speed reaches 90rpm, perform A-profile (moment of inertia) weighing on the clothes, and determine the eccentricity threshold of the clothes according to the range of the weight of the clothes.

[0091] (3) Set the spin speed of the washing machi...

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Abstract

The invention provides a roller washing machine dewatering control method based on eccentricity judgment of a 3D displacement sensor. In the method, the vibration displacement amount of an outer tub in the dewatering process is detected through the 3D displacement sensor on the outer tub in real time, the eccentricity position of a dewatering inner tube is judged according to the vibration situation of the outer tub, and the dewatering curve is adjusted. By judging the eccentricity position and adjusting the dewatering control scheme, the washing machine is effectively prevented from tub hitting, vibration, large noise and other problems, and the performance of the whole machine is improved on the aspects of noise, vibration, safety, service life and the like.

Description

technical field [0001] The invention relates to the technical field of drum washing machines, in particular to a method for controlling the dehydration of drum washing machines based on 3D displacement sensor judging eccentricity. Background technique [0002] At present, most of the dehydration control methods of drum washing machines on the market first judge the eccentricity of the dehydration inner tub through eccentricity detection (eccentricity detection is generally realized when the drum speed of the washing machine is 90-140 rpm), and then determine different eccentricity according to the eccentricity. Spin speed. [0003] However, in the actual application process, when the physical hardware such as the structural parts of the drum washing machine, the suspension system, and the vibration reduction system do not change, when the eccentric position of the drum is different, the eccentricity will affect the vibration, noise, The degree of impact on safety and long...

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Application Information

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IPC IPC(8): D06F33/02
CPCD06F33/00D06F2202/12D06F2204/065
Inventor 吴云贵吴增元
Owner WHIRLPOOL CHINA
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