Washing machine with micro ring and eccentricity testing method

Abstract

The invention provides a washing machine with a micro ring and an eccentricity testing method. The washing machine comprises a housing,, an outer drum and an inner drum, wherein the outer drum and the inner drum sleeve the housing. A micro ring for testing eccentricity of the outer drum is arranged between the housing and the outer drum. The micro ring comprises a fixedly arranged outer ring, and a movable inner ring which sleeves the outer ring. The outer ring and the inner ring are concentrically arranged. The micro ring for testing eccentricity of the outer drum is arranged between the housing and the outer drum. After the outer drum vibrates to certain amplitude and arrives at the inner ring, the inner ring is driven to vibrate, and namely no concentricity between the inner ring and the outer ring is realized. The eccentricity direction of the inner ring relative to the outer ring is the eccentricity direction of the outer drum, and furthermore the eccentricity condition of the outer drum can be determined. After a random position in the circumferential direction of the outer drum contacts with the inner ring, no concentricity between the outer ring and the inner ring can be realized, thereby improving testing accuracy in eccentricity testing, improving reliability and preventing drum impact.

Description

technical field [0001] The invention belongs to the technical field of washing machines, and in particular relates to a washing machine with a fretting ring and an eccentricity detection method of the washing machine. Background technique [0002] Along with the raising of living standard, washing machine is applied more and more generally, and it provides great convenience for people's life. [0003] During the use of the washing machine, due to the inconsistent water absorption capacity and material of the laundry, the problem of uneven distribution of the laundry is prone to occur. The uneven distribution of laundry will cause the rotation axis of the washing machine to deviate from the center position, and the washing machine runs in an eccentric state. The eccentric state will cause the inner tub to hit the box or the anti-collision bar, resulting in vibration or noise. When the eccentricity is serious, the washing machine may even shift, jump or be damaged. [0004] ...

AI Technical Summary

Problems solved by technology

[0005] At present, four load weighing sensors are used to weigh and judge the eccentricity. The weighing sensors are respectively located on the four booms or the feet, and the four sensors are used to compare and analyze the load and judge the eccentricity; However, it is not possible to accurately feed back the tendency of the outer cylinder to deviate from the center during operation

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