Washing machine

Abstract

A washing machine capable of executing until a preset ending time a preset operation ending a washing and focusing on a good condition of washed items such as clothes and a cleaning power; the washing machine ( 1 ) comprises a washing machine body ( 2 ), a washing drum ( 4 ) and an electric motor ( 61 ) and is capable of executing until a preset ending time the preset operation ending multiple processes for washing clothes; the washing machine ( 1 ) further comprises a time acquiring device ( 27 ) and a control device ( 7 ); before a washing process (SP 2 ) is started, the time acquiring device ( 27 ) acquires a remaining time until a target ending time set on the basis of the preset ending time; according to the remaining time acquired by the time acquiring device ( 27 ), the control device ( 7 ) determines whether to execute each of plural processes under a normal preset mode or a special preset mode; the normal preset mode comprises adjusting an average rotation speed of the electric motor ( 61 ) to a prescribed value and executing each of the processes in a prescribed time; compared to the normal preset mode, the special preset mode comprises setting a smaller average rotation speed of the electric motor ( 61 ) and executing the mode with a longer execution time. The washing machine realizes a preset operation for reducing damage and wrinkling of washed items with a simple control A washing machine capable of executing until a preset ending time a preset operation ending a washing and focusing on a good condition of washed items such as clothes and a cleaning power; the washing machine ( 1 ) comprises a washing machine body ( 2 ), a washing drum ( 4 ) and an electric motor ( 61 ) and is capable of executing until a preset ending time the preset operation ending multiple processes for washing clothes; the washing machine ( 1 ) further comprises a time acquiring device ( 27 ) and a control device ( 7 ); before a washing process (SP 2 ) is started, the time acquiring device ( 27 ) acquires a remaining time until an target ending time set on the basis of the preset ending time; according to the remaining time acquired by the time acquiring device ( 27 ), the control device ( 7 ) determines whether to execute each of plural processes under a normal preset mode or a special preset mode; the normal preset mode comprises adjusting an average rotation speed of the electric motor ( 61 ) to a prescribed value and executing each of the processes in a prescribed time; compared to the normal preset mode, the special preset mode comprises setting a smaller average rotation speed of the electric motor ( 61 ) and executing the mode with a longer execution time. The washing machine realizes a preset operation for reducing damage and wrinkling of washed items with a simple control.

1 . A washing machine, comprising: a washing machine body having an input portion capable of arbitrarily inputting a reservation end time of a washing; a washing drum arranged inside the washing machine body; and a motor for supplying driving force for rotating washings contained in the washing drum and capable of performing a reservation operation for ending multiple processes of washing the washings until a reservation end time, wherein the washing machine comprises:
 a time acquisition unit for acquiring a remaining time until a target end time set based on the reservation end time before starting an initial process of the multiple processes; and   a mode determination unit for determining to perform each of the multiple processes in an ordinary reservation mode or a special reservation mode on the basis of the remaining time acquired by the time acquisition unit, wherein the ordinary reservation mode refers to a mode for setting an average rotation speed of the motor as a specified value and performing each of the multiple processes at a specified execution time; and the special reservation mode refers to a mode for setting an average rotation speed of the motor to be lower than a rotation speed in the ordinary reservation mode and setting an execution time to be longer than an execution time in the ordinary reservation mode.   
     
     
         2 . The washing machine according to  claim 1 , wherein
 the multiple processes comprise a washing process, a rinsing process and a dewatering process; and   the mode determination unit determines to perform all the processes in the special reservation mode when judging that the remaining time acquired by the time acquisition unit is greater than time required for performing the washing process, the rinsing process and the dewatering process in the special reservation mode, and   the mode determination unit determines to perform all the processes in the ordinary reservation mode when judging that the remaining time acquired by the time acquisition unit is not greater than the time required for performing the washing process, the rinsing process and the dewatering process in the special reservation mode.   
     
     
         3 . The washing machine according to  claim 1 , wherein
 the multiple processes comprise the washing process, the rinsing process and the dewatering process; and   the mode determination unit determines to perform all the processes in the special reservation mode when judging that the remaining time acquired by the time acquisition unit is greater than time required for performing the washing process, the rinsing process and the dewatering process in the special reservation mode, and   the mode determination unit determines to perform only portion of the processes in the special reservation mode when judging that the remaining time is not greater than the time required for performing all the processes in the special reservation mode and judging that the remaining time is greater than the time required for performing portion of the multiple processes in the special reservation mode and performing other processes in the ordinary reservation mode.   
     
     
         4 . The washing machine according to  claim 1 , wherein
 the multiple processes comprise the washing process, the rinsing process and the dewatering process;   the time acquisition unit also acquires the remaining time until the target end time before the start of the rinsing process and before the start of the dewatering process respectively, except in the initial process, i.e., before the start of the washing process; and   the mode determination unit determines to perform the next process in the ordinary reservation mode or the special reservation mode based on the remaining time whenever the time acquisition unit acquires the remaining time.   
     
     
         5 . The washing machine according to  claim 1 , wherein
 the time at which the reservation end time inputted by the input portion is advanced by the specified time is set as the target end time.