Direct-driven fully automatic impeller type washing machine and washing method thereof

Abstract

The invention discloses a direct-driven fully automatic impeller type washing machine and a washing method thereof. The washing is performed by directly driving an impeller through a direct-driven motor; when the washing machine is started to a washing state, the initial speed of a motor is less than a constant speed of a running process; during the constant speed running, the flow in a corresponding washing tube is circulated and turned over by adopting a circulating variable-speed circulating water-flow driving mode; and the motor first performs long-term strong water flow driving to turn over clothes, then performs short-time balanced water flow driving to automatically correct the offset of the clothes in the washing tube and circulates the processes in turn. The clothes do spiral ascending motion around blades of the impeller while revolving around the center of the impeller in the washing tube, and are turned over from the centre of the impeller to the periphery when moving to the space behind a neck part of the impeller in the centre of the impeller and then fall down to the periphery of the bottom of the tube along the wall of the washing tube; then the clothes at the bottom of the tube are turned over upwards from the periphery to the centre of the impeller; and the clothes in the upper space are turned over downwards from the centre to the periphery. Through the washing machine and the washing method, the load can be automatically balanced.

Description

technical field [0001] The invention relates to a fully automatic pulsator washing machine, in particular to a fully automatic pulsator washing machine in which a direct drive motor directly drives the pulsator and a washing method thereof. Background technique [0002] Ordinary pulsator washing machines rely on reducers and use belts for energy transmission. The pulsator is flat or sunken. When washing, a large amount of water is added, and the back and forth rotation of the pulsator drives the turning of the clothes, which turns left and right. Upward is more than up-down direction, thereby often causes the clothes that are placed on it to be washed uncleanly, and the uniformity of washing of clothes is very poor, generally between 70%-90%. In addition, the rotation time of the motor in the working state is relatively long, generally between 1.0-1.6, and the commutation is relatively slow, and the required stop time is between 0.4-0.6. The speed of the motor generally can...

AI Technical Summary

Problems solved by technology

Due to the short stroke of the motor in this washing method, the starting speed of the motor is very high, and the switching direction is very fast, which may easily cause the clothes in the washing bucket to be unbalanced, and the load is likely to be biased to one side of the bucket, causing the washing bucket to shake violently, resulting in machine vibration

Moreover, the starting speed of the motor is higher than the holding speed, and the starting stroke is also longer than the holding stroke, so that when the whole machine starts washing, the imbalance of the clothes in the washing tub is aggravated, and the vibration of the whole machine is more severe.

In addition, due to this reason, during the movement of the clothes at a lower holding speed and a shorter stroke, the number of turnovers will also be reduced, especially when the load is large, because the holding speed and stroke are constant, the clothes will be in the washing tub. The unbalance inside the machine cannot be automatically corrected, resulting in more unbalanced clothes and vibration of the whole machine

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