Washing machine and washing control method of same

Abstract

A washing machine and a washing control method of the washing machine thereof. The washing machine includes an outer drum, an inner drum, an impeller, and a driving apparatus. The driving apparatus is a dual-rotor direct drive motor including two rotors and one stator. One rotor is axially connected to the inner drum, another rotor is axially connected to the impeller. During washing, the two rotors respectively drive the impeller and the inner drum to rotate independently, such that the inner drum and the impeller rotate opposite to each other, and after each rotation cycle, the inner drum and the impeller reversely rotate. The washing control method includes driving, the driving apparatus, the inner drum and the impeller to reverse asynchronously, so as to enable the impeller and the inner drum to rotate in a same direction within a time difference between reversals of the impeller and the inner drum.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a washing machine, and more particularly, to a washing control method of a washing machine, in which rotation manners of an impeller and an inner drum are separately controlled, and a washing machine thereof.BACKGROUND OF THE INVENTION[0002]A structure of a conventional washing machine is constituted by an inner drum, an outer drum, an agitator, a transmission system, a control system, and a housing. During washing, the inner drum does not rotate, and the agitator rotates alternately in forward and backward directions to move clothes through the water in the inner drum so as to implement washing. This washing method is found to have some disadvantages: 1. there exists a single washing manner, and it is difficult to improve a rate of washing ability; 2. strength of a water flow is weak, and clothes are easily twisted. In order to overcome the foregoing disadvantages, some washing machine manufacturers design a “rotary drum”...

AI Technical Summary

Benefits of technology

The present invention provides a washing control method that allows for the inner drum and impeller to rotate in opposite directions during a washing process. After each rotation cycle, they reversely rotate and still rotate opposite to each other, changing the motion manner of the inner drum or impeller. This changes the washing water flow, reduces clothes twisting, and alleviates wearing of the clothes. The structure reduces the weight, column, and costs of the driving system, improving transmission efficiency and stability. The impeller and inner drum are separately driven to rotate, and during dewatering, they are controlled to rotate in a same direction and at a same speed, using power transmission directly driven by two rotors. This breaks the conventional implementation manner of transferring torque by merely depending on gear reduction, reducing loss caused by intermediate energy transfer and noise.

Problems solved by technology

This washing method is found to have some disadvantages: 1. there exists a single washing manner, and it is difficult to improve a rate of washing ability; 2. strength of a water flow is weak, and clothes are easily twisted.

However, a disadvantage still exists in this method because the inner drum has no power, the rotation strength of the inner drum is weak, the agitator only rotates forward and backward on a bottom of the drum, an effect of “scrubbing clothes” is little, a washing effect is not improved obviously, and the problem of twisting clothes still cannot be resolved in a favorable manner.

However, because the power transmission mechanisms are used for transmission in this driving manner, their reversing manner and rotation speed are both fixed, the inner drum or agitator cannot be freely independently driven to reverse, and the inner drum and agitator must rotate opposite to each other.

In a working process of the washing machine, while the motor actuates the deceleration clutch to work, torque is generated relative to the center of the outer drum during a rotation process of the motor, instability of the whole system is increased, and during the washing process, the washing machine generates relatively high noise and large vibration.

However, in the existing structures where the direct drive motor is used, because a deceleration clutch is still used, during a washing process, a rotation manner of a conventional dual-power washing machine or a fully-automatic washing machine is still used as a rotation manner of the inner drum and the impeller, and this washing machine do not improve the washing water flow and the rate of washing ability.

Therefore, a heretofore unaddressed need exists in the art to address the aforementioned deficiencies and inadequacies.

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