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.

1 . A washing control method of a washing machine, wherein the washing machine comprises an outer drum, an inner drum, an impeller, and a driving apparatus, wherein in a washing process, the driving apparatus drives the inner drum and the impeller to rotate opposite to each other, and after each rotation cycle, the inner drum and the impeller reversely rotate, comprising:
 the driving apparatus driving 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.   
     
     
         2 . The washing control method of the washing machine according to  claim 1 , wherein the impeller and the inner drum reverse asynchronously, and the time difference between the reversals is greater than 0 and less than 5 S. 
     
     
         3 . The washing control method of the washing machine according to  claim 1 , wherein the driving apparatus drives the inner drum or the impeller to delay or advance a reversal, and a set time for delaying or advancing the reversal is greater than 0 and less than 5 S. 
     
     
         4 . The washing control method of the washing machine according to  claim 3 , wherein within each rotation cycle, a time of a reversal of the inner drum or impeller, as compared with a time of a reversal of the impeller or inner drum, is delayed or advanced by 0.05 to 3 S. 
     
     
         5 . The washing control method of the washing machine according to  claim 1 , wherein when washing starts, the impeller and the inner drum rotate in opposite to each other, and a delayed starting time between the impeller and the inner drum is greater than 0 and less than or equal to 3 S. 
     
     
         6 . The washing control method of the washing machine according to  claim 5 , the impeller or inner drum first rotates, after a delay of a set time, the inner drum or impeller further rotates in an opposite direction, each rotation cycle time of the inner drum is equal to that of the impeller, and the set time of the delay is less than the rotation cycle time. 
     
     
         7 . The washing control method of the washing machine according to  claim 1 , wherein in the washing process, a revolution speed ratio between the inner drum and the impeller is 1:(1 to 5); and a revolution speed of the impeller is 40 to 150 revolutions per minute. 
     
     
         8 . The washing control method of the washing machine according to  claim 1 , wherein a time when the driving apparatus drives the inner drum and the impeller to rotate in opposite to each other within each rotation cycle is 1 to 5 S. 
     
     
         9 . The washing control method of the washing machine according to  claim 1 , wherein speeds of the inner drum and the impeller that rotate in a same direction are different from speeds of the inner drum and the impeller that rotate opposite to each other. 
     
     
         10 . The washing control method of the washing machine according to  claim 1 , wherein a speed of rotation of the inner drum and/or impeller in each washing process is changeable, and a rotation speed is increased or reduced corresponding to a set changing rule. 
     
     
         11 . A washing control method of a washing machine, wherein the washing machine comprising an outer drum, an inner drum, an impeller, and a driving apparatus, comprising:
 in a washing process, the driving apparatus driving the impeller and the inner drum to rotate in a manner of switching between rotations in a same direction and rotations in opposite directions.   
     
     
         12 . The washing control method of the washing machine according to  claim 11 , wherein after driving the impeller and the inner drum to rotate in the same direction or opposite to each other by a first set time, the driving apparatus stops driving, drives the impeller and the inner drum to rotate opposite to each other or in the same direction by a second set time, stops driving, and then drives the impeller and the inner drum to rotate opposite to each other or in the same direction by a third set time, and wherein the foregoing process is repeated, wherein the first, second and third set times are the same of different from each other. 
     
     
         13 . The washing control method of the washing machine according to  claim 11 , wherein when the washing starts, the impeller and the inner drum rotate in opposite to each other, and a delayed starting time between the impeller and the inner drum is greater than 0 and less than or equal to 3 S. 
     
     
         14 . The washing control method of the washing machine according to  claim 13 , wherein the impeller or inner drum first rotates, after a delay of a set time, the inner drum or impeller further rotates in an opposite direction, each rotation cycle time of the inner drum is equal to that of the impeller, and the set time of the delay is less than the rotation cycle time. 
     
     
         15 . The washing control method of the washing machine according to  claim 11 , wherein in the washing process, a revolution speed ratio between the inner drum and the impeller is 1:(1 to 5); and a revolution speed of the impeller is 40 to 150 revolutions per minute. 
     
     
         16 . The washing control method of the washing machine according to  claim 11 , wherein a time when the driving apparatus drives the inner drum and the impeller to rotate in opposite to each other within each rotation cycle is 1 to 5 S. 
     
     
         17 . The washing control method of the washing machine according to  claim 11 , wherein speeds of the inner drum and the impeller that rotate in a same direction are different from speeds of the inner drum and the impeller that rotate opposite to each other. 
     
     
         18 . The washing control method of the washing machine according to  claim 11 , wherein a speed of rotation of the inner drum and/or impeller in each washing process is changeable, and a rotation speed is increased or reduced corresponding to a set changing rule. 
     
     
         19 . A washing control method of a washing machine, wherein the washing machine comprises an outer drum, an inner drum, an impeller, and a driving apparatus, wherein in a washing process, the driving apparatus drives the inner drum and the impeller to rotate opposite to each other, and after each rotation cycle, the inner drum and the impeller reversely rotate, comprising:
 the driving apparatus driving the inner drum and the impeller to reverse asynchronously, so as to enable one of the impeller and the inner drum to rotate and the other to stay stationary within a time difference between reversals of the impeller and the inner drum.   
     
     
         20 . The washing control method of the washing machine according to  claim 19 , wherein when each rotation cycle ends, the driving apparatus drives the inner drum to stop rotating, the impeller to reversely rotate, and the inner drum to further reversely rotate after a set time, and the set time is greater than 0 and less than 5 S. 
     
     
         21 . The washing control method of the washing machine according to  claim 19 , wherein when each rotation cycle is about to end, the driving apparatus drives the inner drum to stop rotating, the impeller to continue rotating, and the inner drum and the impeller to further reversely rotate after a set time, and the set time is greater than 0 and less than 5 S. 
     
     
         22 . The washing control method of the washing machine according to  claim 19 , wherein a speed of rotation of the impeller when the inner drum is stationary is different from a speed of rotation of the impeller when the inner drum and impeller rotate in different directions. 
     
     
         23 . A washing control method of a washing machine, the washing machine comprising an outer drum, an inner drum, an impeller, and a driving apparatus, comprising:
 in a washing process, the driving apparatus driving the impeller and the inner drum to move by switching between at least two of three control manners of rotations in a same direction, rotations in opposite directions, and the impeller rotating while the inner drum being stationary.   
     
     
         24 . A washing machine utilizing the washing method according to  claim 1 , wherein the driving apparatus is a dual-rotor direct drive motor comprising two rotors and one stator, wherein one rotor is axially connected to the inner drum, another rotor is axially connected to the impeller, and in the washing process, the two rotors respectively drive the impeller and the inner drum to rotate independently. 
     
     
         25 . The washing machine according to  claim 24 , wherein the two rotors are respectively an outer rotor and an inner rotor, and the stator is disposed between the inner and outer rotors. 
     
     
         26 . The washing machine according to  claim 24 , wherein the two rotors are both inner rotors or outer rotors, and the stator is accordingly an outer stator or an inner stator. 
     
     
         27 . A washing machine utilizing the washing method according to  claim 11 , wherein the driving apparatus is a dual-rotor direct drive motor comprising two rotors and one stator, wherein one rotor is axially connected to the inner drum, another rotor is axially connected to the impeller, and in the washing process, the two rotors respectively drive the impeller and the inner drum to rotate independently. 
     
     
         28 . A washing machine utilizing the washing method according to  claim 19 , wherein the driving apparatus is a dual-rotor direct drive motor comprising two rotors and one stator, wherein one rotor is axially connected to the inner drum, another rotor is axially connected to the impeller, and in the washing process, the two rotors respectively drive the impeller and the inner drum to rotate independently. 
     
     
         29 . A washing machine utilizing the washing method according to  claim 23 , wherein the driving apparatus is a dual-rotor direct drive motor comprising two rotors and one stator, wherein one rotor is axially connected to the inner drum, another rotor is axially connected to the impeller, and in the washing process, the two rotors respectively drive the impeller and the inner drum to rotate independently.