Control method of washing machine and washing machine

Abstract

A control method of washing machine and a washing machine adopting the control method are provided. The washing machine includes a master control board, and an acceleration sensor configured to detect vibration of an outer drum. At least in a high-speed dewatering phase, the master control board is configured to determine whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issue an instruction. Since the washing machine determines whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum in the high-speed dewatering phase, various uncontrolled vibrations and displacements can be restrained in advance, thereby increasing operational reliability of the washing machine, avoiding generating a collision of the drum and increasing washing efficiency and service life of the washing machine.

What is claimed is: 
     
         1 . A control method of a washing machine, wherein the washing machine comprises a master control board, and an acceleration sensor configured to detect vibration of an outer drum, wherein the master control board is configured to, at least in a high-speed dewatering phase, determine whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issue an instruction. 
     
     
         2 . The control method according to  claim 1 , wherein the acceleration sensor is configured to output vibration data in three directions of orthogonal X axis, Y axis and Z axis of the outer drum to the master control board, and the master control board is configured to determine a vibration level of the outer drum according to the vibration data received from the acceleration sensor, wherein the washing machine is controlled by the master control board to perform load redistribution when the vibration level is greater than a preset level threshold. 
     
     
         3 . The control method according to  claim 2 , wherein a dewatering phase of the washing machine has a low-speed operation phase and the high-speed dewatering phase, in at least one the low-speed operation phase, a washing phase and a rinsing phase of the washing machine, an eccentric detection method is adopted by the washing machine to determine whether to perform load redistribution. 
     
     
         4 . The control method according to  claim 3 , comprising:
 step A1, in the washing machine, executing a dewatering process to enter the low-speed operation phase;   step B1, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than a preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step D1 is executed, otherwise, step C1 is executed;   step C1, through the master control board, obtaining a current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than a preset level threshold; if the current vibration level is greater than the preset level threshold, step D1 is executed, otherwise, step E1 is executed;   step D1, in the washing machine, performing load redistribution;   step E1, in the washing machine, entering the high-speed dewatering phase to perform high-speed dewatering, and starting to time;   step F1, determining whether timekeeping time reaches or exceeds a preset dewatering time; if the timekeeping time reaches or exceeds the preset dewatering time, dewatering is ended, otherwise, step G1 is executed; and   step G1, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, the dewatering process proceeds to step F1 after load redistribution is performed, otherwise, the dewatering process proceeds to step F1 directly.   
     
     
         5 . The method according to  claim 4 , wherein the control method proceeds to step B1 after load redistribution is performed by the washing machine in step D1. 
     
     
         6 . The control method according to  claim 4 , wherein an alarm is issued from the washing machine when a total number of the load redistribution performed by the washing machine exceeds a preset value. 
     
     
         7 . The control method according to  claim 3 , comprising:
 step A2, in the washing machine, executing a washing/rinsing process and starting to time;   step B2, determining whether timekeeping time reaches or exceeds a preset washing/rinsing time; if the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended, otherwise step C2 is executed;   step C2, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than the preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step E2 is executed, otherwise, step D2 is executed;   step D2, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, step E2 is executed, otherwise proceeding to step B2 directly; and   step E2, proceeding to step B2 after load redistribution is performed in the washing machine.   
     
     
         8 . A washing machine, comprising a master control board, and an acceleration sensor configured to detect vibration of an outer drum, wherein the washing machine adopts the following control method: the master control board is configured to, at least in a high-speed dewatering phase, determine whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issue an instruction. 
     
     
         9 . The washing machine according to  claim 8 , wherein the washing machine is a drum washing machine, and the acceleration sensor is arranged on an outer circumferential wall of the outer drum and is located at a front part of the outer drum. 
     
     
         10 . The washing machine according to  claim 8 , wherein the washing machine is an impeller washing machine, and the acceleration sensor is arranged on one of a circumferential part of the outer drum, a bottom of the outer drum, and a hanger rod of the washing machine. 
     
     
         11 . The control method according to  claim 4 , wherein an alarm is issued from the washing machine when accumulative time of the load redistribution performed by the washing machine exceeds a preset value. 
     
     
         12 . The control method according to  claim 4 , comprising:
 step A2, in the washing machine, executing a washing/rinsing process and starting to time;   step B2, determining whether timekeeping time reaches or exceeds a preset washing/rinsing time; if the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended, otherwise step C2 is executed;   step C2, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than the preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step E2 is executed, otherwise, step D2 is executed;   step D2, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, step E2 is executed, otherwise proceeding to step B2 directly; and   step E2, proceeding to step B2 after load redistribution is performed in the washing machine.   
     
     
         13 . The control method according to  claim 5 , comprising:
 step A2, in the washing machine, executing a washing/rinsing process and starting to time;   step B2, determining whether timekeeping time reaches or exceeds a preset washing/rinsing time; if the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended, otherwise step C2 is executed;   step C2, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than the preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step E2 is executed, otherwise, step D2 is executed;   step D2, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, step E2 is executed, otherwise proceeding to step B2 directly; and   step E2, proceeding to step B2 after load redistribution is performed in the washing machine.   
     
     
         14 . The control method according to  claim 6 , comprising:
 step A2, in the washing machine, executing a washing/rinsing process and starting to time;   step B2, determining whether timekeeping time reaches or exceeds a preset washing/rinsing time; if the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended, otherwise step C2 is executed;   step C2, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than the preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step E2 is executed, otherwise, step D2 is executed;   step D2, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, step E2 is executed, otherwise proceeding to step B2 directly; and   step E2, proceeding to step B2 after load redistribution is performed in the washing machine.   
     
     
         15 . The washing machine according to  claim 8 , wherein the acceleration sensor is configured to output vibration data in three directions of orthogonal X axis, Y axis and Z axis of the outer drum to the master control board, and the master control board is configured to determine a vibration level of the outer drum according to the vibration data received from the acceleration sensor, wherein the washing machine is controlled by the master control board to perform load redistribution when the vibration level is greater than a preset level threshold. 
     
     
         16 . The washing machine according to  claim 15 , wherein a dewatering phase of the washing machine has a low-speed operation phase and the high-speed dewatering phase, in at least one the low-speed operation phase, a washing phase and a rinsing phase of the washing machine, an eccentric detection method is adopted by the washing machine to determine whether to perform load redistribution. 
     
     
         17 . The washing machine according to  claim 16 , wherein the control method of the washing machine comprises:
 step A1, in the washing machine, executing a dewatering process to enter the low-speed operation phase;   step B1, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than a preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step D1 is executed, otherwise, step C1 is executed;   step C1, through the master control board, obtaining a current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than a preset level threshold; if the current vibration level is greater than the preset level threshold, step D1 is executed, otherwise, step E1 is executed;   step D1, in the washing machine, performing load redistribution;   step E1, in the washing machine, entering the high-speed dewatering phase to perform high-speed dewatering, and starting to time;   step F1, determining whether timekeeping time reaches or exceeds a preset dewatering time; if the timekeeping time reaches or exceeds the preset dewatering time, dewatering is ended, otherwise, step G1 is executed; and   step G1, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, the dewatering process proceeds to step F1 after load redistribution is performed, otherwise, the dewatering process proceeds to step F1 directly.   
     
     
         18 . The washing machine according to  claim 17 , wherein the control method proceeds to step B1 after load redistribution is performed by the washing machine in step D1. 
     
     
         19 . The washing machine according to  claim 17 , wherein an alarm is issued from the washing machine when a total number of the load redistribution performed by the washing machine exceeds a preset value. 
     
     
         20 . The washing machine according to  claim 8 , wherein the control method of the washing machine comprises:
 step A2, in the washing machine, executing a washing/rinsing process and starting to time;   step B2, determining whether timekeeping time reaches or exceeds a preset washing/rinsing time; if the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended, otherwise step C2 is executed;   step C2, in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than the preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step E2 is executed, otherwise, step D2 is executed;   step D2, through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, step E2 is executed, otherwise proceeding to step B2 directly; and   step E2, proceeding to step B2 after load redistribution is performed in the washing machine.