Washing machine and control method of same

Abstract

The present invention relates to a washing machine and a control method of the same. The washing machine includes an outer barrel, and an inner barrel, a cloth feed port of the inner barrel being provided with a gimbal. The gimbal is of an annular structure, an inner circumference of the gimbal is provided with a water injection hole configured to supply water into the gimbal to serve as a balance liquid to balance the load eccentricity, and an outer circumference of the gimbal is provided with at least one drainage port that is openable and closeable. The control method of the washing machine includes injecting water into the gimbal through the gimbal water injection hole so as to balance the load eccentricity of the inner barrel during dehydration.

What is claimed is: 
     
         1 . A washing machine, the washing machine comprising:
 an outer barrel ( 13 ); and   an inner barrel ( 1 ), a cloth feed port of the inner barrel ( 1 ) being provided with a gimbal, wherein the gimbal is of an annular structure, an inner circumference of the gimbal is provided with a water injection hole ( 2 ) configured to supply water into the gimbal to serve as a balance liquid to balance the load eccentricity, and an outer circumference of the gimbal is provided with at least one drainage port ( 8 ) that is openable and closeable.   
     
     
         2 . The washing machine according to  claim 1 , wherein the water injection hole ( 2 ) is configured as a round of annular water injection hole disposed on the inner circumference of the gimbal, a water injection component ( 5 ) is disposed corresponding to the water injection hole, the water injection component ( 5 ) is a pipe fixed to the outer barrel ( 13 ) or a shell of the washing machine, one end of the pipe is inserted into the water injection hole ( 5 ) of the gimbal and is not in contact with a wall of the gimbal, and the other end of the pipe is in communication with a running water and/or washing water pipeline. 
     
     
         3 . The washing machine according to  claim 2 , wherein the water injection component ( 5 ) is a pipe fixedly connected to the outer barrel ( 13 ), the bottom of the outer barrel ( 13 ) is provided with a drainage chamber ( 3 ) capable of reserving a part of washing water, one end of the pipe is inserted into the water injection hole ( 2 ) of the gimbal and is not in contact with the wall of the gimbal, and the other end is in communication with the drainage chamber ( 3 ) through a drainage pump ( 4 ) capable of pumping water flows. 
     
     
         4 . The washing machine according to  claim 3 , wherein a filter screen ( 6 ) is disposed at a junction of the drainage chamber ( 3 ) and the water injection component ( 5 ), and the bottom of the drainage chamber ( 3 ) is provided with a water outlet ( 7 ) in communication with a drainage pipeline of the washing machine. 
     
     
         5 . The washing machine according to  claim 1 , wherein the outer circumference of the gimbal is provided with 2 to 10 drainage ports ( 8 ) configured to discharge the balance liquid, and the drainage port is provided with a drainage valve ( 9 ) capable of controlling opening or closing of the drainage port ( 8 ). 
     
     
         6 . The washing machine according to  claim 5 , wherein the drainage valve is an automatic opening and closing structure, the drainage valve ( 9 ) comprises a spring ( 10 ) and a baffle ( 11 ), the spring ( 10 ) is located in the drainage port ( 8 ), one end of the spring ( 10 ) is connected to an outer end of the drainage port ( 8 ), the other end of the spring ( 10 ) is connected to the baffle ( 11 ), the baffle ( 11 ) is located inside the gimbal, the shape of the baffle ( 11 ) matches with the shape of the drainage port ( 8 ), and when the spring is in a free state, the drainage port ( 8 ) keeps open. 
     
     
         7 . The washing machine according to  claim 5 , wherein the drainage valve is an automatic opening and closing structure, the section of the drainage port ( 8 ) is V-shaped, and a movable ball valve spool ( 18 ) is disposed inside the V-shaped drainage port. 
     
     
         8 . A control method of the washing machine according to  claim 1 , comprising:
 injecting water into the gimbal through the gimbal water injection hole ( 2 ), so as to balance the load eccentricity of the inner barrel ( 1 ) during dehydration.   
     
     
         9 . The control method according to  claim 8 , wherein after dehydration distribution, washing water is discharged from the washing machine, the washing water entering the gimbal through the gimbal water injection hole ( 2 ) balances the load eccentricity of the inner barrel during dehydration, and after the dehydration ends, the washing water in the gimbal is discharged through the drainage port ( 8 ). 
     
     
         10 . The control method according to  claim 8 , wherein before the dehydration distribution, the washing water is discharged, and during the dehydration distribution, according to the load eccentricity of the inner barrel ( 1 ), running water suitable to the eccentricity is injected into the gimbal through the gimbal water injection hole ( 2 ), so as to balance the eccentricity of the load inside the inner barrel ( 2 ) during the dehydration, and after the dehydration ends, the running water inside the gimbal is discharged through the drainage port. 
     
     
         11 . The control method according to  claim 8 , wherein before the dehydration distribution, the washing water is discharged, and a part of washing water is reserved in the drainage chamber; during the dehydration distribution, according to the load eccentricity of the inner barrel ( 1 ), the drainage pump ( 4 ) injects washing water suitable to the load eccentricity into the gimbal through the gimbal water injection hole ( 2 ), so as to balance the eccentricity of the internal load of the inner barrel ( 1 ) during the dehydration, and after the dehydration ends, the washing water in the gimbal is discharged through the drainage port ( 8 ). 
     
     
         12 . The control method according to  claim 9 , wherein during dehydration, the inner barrel ( 1 ) rotates at a high speed, the centrifugal force generated by the rotation is greater than the resistance of the spring ( 10 ), so that the baffle ( 11 ) compresses the spring ( 10 ), the baffle ( 11 ) closely attaches an inner wall of the gimbal to enclose the drainage port ( 8 ), when the dehydration ends, the inner barrel ( 1 ) gradually stops rotation, the centrifugal force gradually reduces along with the reduction of the speed, when the centrifugal force is less than the restoring force of the spring ( 10 ), the restoring force of the spring ( 10 ) resets the baffle ( 11 ), and the balance liquid inside the gimbal is discharged through the drainage port ( 8 ); or, during dehydration, the centrifugal force generated by high-speed rotation of the inner barrel ( 1 ) is greater than the buoyancy force of the ball valve spool ( 18 ), the ball valve spool ( 18 ) closely attaches the inner wall of the V-shaped drainage port to enclose the drainage port, when the dehydration ends, the inner barrel ( 1 ) gradually stops rotation, and the centrifugal force gradually reduces along with the reduction of the speed, when the centrifugal force is less than the buoyancy force of the ball valve spool ( 18 ), the ball valve spool ( 18 ) is in a free active state, and the balance liquid inside the gimbal is discharged through the drainage port ( 8 ). 
     
     
         13 . A washing machine, the washing machine comprising:
 an outer barrel ( 13 ), and   an inner barrel ( 1 ), a gimbal being disposed at an opening of the inner barrel ( 1 ), wherein the gimbal is of an annular structure, the inside of the gimbal is a hollow chamber, and the washing machine is further provided with a water intake structure configured to inject water into the hollow chamber to balance the load eccentricity and a drainage structure configured to discharge the water in the gimbal.   
     
     
         14 . The washing machine according to  claim 13 , wherein the water intake structure extends from the gimbal at the front end opening of the inner barrel ( 1 ) to an inner barrel shaft at the rear end of the inner barrel ( 1 ) along an outer surface of a sidewall of the inner barrel ( 1 ), and is in communication with a water intake end of the washing machine through the internal of the inner barrel shaft; the drainage structure extends from the gimbal at the front end opening of the inner barrel ( 1 ) to an inner barrel shaft at the rear end of the inner barrel ( 1 ) along an outer surface of a sidewall of the inner barrel ( 1 ), and is in communication with a drainage end of the washing machine through the internal of the inner barrel shaft. 
     
     
         15 . The washing machine according to  claim 14 , wherein water intake structure comprises an intake pump ( 23 ) that is located at the rear portion of the washing machine and configured to transmit water flows and an intake waterway that is in communication with the intake pump ( 23 ) and the gimbal and configured to inject water into the gimbal, the drainage structure comprises a controllable stop valve ( 21 ) that is located at the rear portion of the washing machine and configured to control opening and closing of the drainage structure and a drainage waterway that is in communication with the controllable stop valve ( 21 ) and the gimbal and configured to discharge the water in the gimbal. 
     
     
         16 . The washing machine according to  claim 15 , wherein the outer circumference of the gimbal is provided with a drainage port ( 8 ), one end of the drainage waterway is connected to the drainage port ( 8 ) and the other end is connected to the controllable stop valve ( 21 ), an end face of the gimbal close to the inner circumference of the gimbal is provided with a water inlet ( 24 ), one end of the intake waterway is connected to the water inlet ( 24 ) and the other end is connected to the intake pump ( 23 ). 
     
     
         17 . The washing machine according to  claim 16 , wherein the intake waterway comprises an intake pipe ( 22 ) that is located at an outer surface of the sidewall of the inner barrel ( 1 ) and rotates together with the inner barrel ( 1 ), a first rotation connector ( 28 ) that is located in an outer barrel axle sleeve ( 30 ) and is fixed, wherein a first annular sink ( 29 ) is disposed at a junction of an inner barrel shaft ( 31 ) and the first rotation connector ( 28 ), the first annular sink ( 29 ) is in communication with the intake pipe ( 22 ), and the other end of the first rotation connector ( 28 ) is in communication with a water intake end of the washing machine through the intake pump ( 23 ). 
     
     
         18 . The washing machine according to  claim 16 , wherein the drainage waterway comprises a drainage pipe ( 20 ) that is located at the outer surface of the sidewall of the inner barrel ( 1 ) and rotates together with the inner barrel ( 1 ), and a second rotation connector ( 26 ) that is located in an outer barrel axle sleeve ( 30 ) and is fixed, wherein a second annular sink ( 27 ) is disposed at a junction of an inner barrel shaft ( 31 ) and the second rotation connector ( 26 ), the second annular sink ( 27 ) is in communication with the drainage pipe ( 20 ), and the other end of the second rotation connector ( 26 ) is in communication with a water drainage end of the washing machine through the controllable stop valve ( 21 ). 
     
     
         19 . The washing machine according to  claim 16 , wherein the inner circumference of the gimbal is provided with at least one vent hole ( 25 ). 
     
     
         20 . A control method of the washing machine according to  claim 13 , comprising:
 injecting water into the gimbal through the water intake structure, so as to balance the load eccentricity of the inner barrel ( 1 ) during dehydration; and   discharging the water in the gimbal through the drainage structure to reduce the mass of the gimbal.   
     
     
         21 . The control method according to  claim 20 , wherein during dehydration distribution, a control board of the washing machine calculates or measures the internal load eccentricity of the inner barrel, and controls the intake pump to pump water corresponding to the load eccentricity into the gimbal, so as to balance the eccentricity of the internal load of the inner barrel, and after the dehydration ends, the control board of the washing machine controls the controllable stop valve ( 21 ) to be open, and the water inside the gimbal is discharged through the drainage end of the washing machine under the action of the centrifugal force. 
     
     
         22 . The control method according to  claim 21 , wherein the control board of the washing machine controls the rotation speed of the inner barrel to rise to a high rotation speed, and controls water injection into the washing machine gimbal to balance the load eccentricity, and the high rotation speed is a rotation speed higher than 75 rpm.