Washing machine and vibration imbalance detecting method thereof

Abstract

The invention relates to the technical field of washing machines and discloses a washing machine and a vibration imbalance detecting method thereof. The washing machine comprises a box body and a bucket assembly, wherein a light-emitting element is arranged on one of the bottom of the box body and the bottom of the bucket assembly, a reflection element corresponding to the light-emitting element is arranged on the other of the bottom of the box body and the bottom of the bucket assembly, the light-emitting element is used for emitting light at a set angle, and the reflection element is used for reflecting light back to the light-emitting element. The light-emitting element is also connected with a controller, and the controller is used for judging vibration imbalance of the washing machine and controlling the washing machine to stop operating when the strength of the reflected light received by the light-emitting element exceeds a preset range. The space position change between the light-emitting element and the reflection element can be judged by detecting the intensity of the reflected light received by the light-emitting element, accordingly the vibration imbalance situations of the washing machine in all directions in a three-dimensional space are accurately and flexibly detected, detection blind points are effectively decreased, and the damage caused by range-exceeding vibration to the washing machine is avoided.

Description

technical field [0001] The invention relates to the technical field of washing machines, in particular to a washing machine and a vibration imbalance detection method thereof. Background technique [0002] The tub assembly is the core component of the washing machine, and its main function is to mechanically rotate to tumble the items to be washed and the fluid in the washing process contained therein. When the washing machine is working, the barrel assembly is required to run smoothly. If the load distribution in the barrel is extremely uneven, the barrel will produce destructive vibration beyond the range, which will damage the parts of the washing machine and affect the life of the whole machine. The destructive vibration is the vibration imbalance. [0003] Such as figure 1 As shown, in the prior art, the detection method for the vibration imbalance of the washing machine generally adopts the mechanical switch 6'. When the bucket assembly 2' vibrates beyond the range, ...

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Problems solved by technology

[0006] Based on the above, the object of the present invention is to provide a washing machine and its vibration unbalance detection method to solve the problem of low sensitivity, poor accuracy and inability to detect the vibration unbalance of the washing machine in the three-dimensional direction in the prior art when the unbalance detection of the washing machine is performed. question

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