Spin drying control method and device of washing machine and washing machine

Abstract

The invention discloses a spin drying control method and device of a washing machine and the washing machine. The method comprises the following steps: when the washing machine executes a spin drying procedure, collecting the speed of a spin drying drum of the washing machine and the acceleration of the spin drying drum in the vibration direction in real time; calculating the vibration displacement of the spin drying drum in the vibration direction according to the speed and the acceleration; when the spin drying drum runs at the current-gear speed, judging whether the vibration displacement is greater than a preset displacement threshold corresponding to the current-gear speed; in a low-speed stage of the spin drying procedure, if the vibration displacement is greater than the preset displacement threshold corresponding to the current-gear speed, controlling the washing machine to perform loose shaking work; otherwise, controlling to increase the speed of the spin drying drum to the next-gear speed; in a high-speed stage of the spin drying procedure, if the vibration displacement is greater than the preset displacement threshold corresponding to the current-gear speed, controlling the spin drying drum to run at the current-gear speed; otherwise, controlling to increase the speed of the spin drying drum to the next-gear speed.

Description

technical field [0001] The invention relates to the technical field of washing appliances, in particular to a washing machine dehydration control method, a washing machine dehydration control device and a washing machine. Background technique [0002] When the pulsator washing machine dehydrates, when the clothes in the washing machine drum are not evenly distributed, it will cause a large vibration of the pulsator washing machine, which seriously affects the user experience and reduces the service life of the pulsator washing machine. The mechanical bump switch installed on the top-wheel washing machine has the function of detecting load imbalance. When the imbalance is detected, the load distribution can be readjusted to reduce the vibration of the top-wheel washing machine during dehydration. [0003] At present, the method for detecting the dehydration vibration of the pulsator washing machine is to install a mechanical bump switch at a certain position away from the deh...

AI Technical Summary

Problems solved by technology

In many cases, when the clothes in the bucket are unbalanced, the dehydration bucket cannot hit the mechanical switch due to the uncertainty of the trajectory of the dehydration bucket, and the mechanical switch fails, which causes abnormal phenomena such as collision with the washing machine and displacement

Moreover, this mechanical bucket bump switch can only judge the vibration during the dehydration startup stage (speed ≤ 300rpm), and cannot judge the vibration in the subsequent stage. Abnormal phenomenon of bump switch, high-speed shift, bump box, etc.

[0004] Therefore, the current method cannot effectively reduce the high-speed vibration of the dehydration bucket, resulting in poor dehydration effect

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