KR100421868B1 - Method for Controlling Motor of Drum Washing Machine - Google Patents

Abstract

The present invention relates to a method for controlling a motor of a drum washing machine for securing a flow space of a cloth when driving a washing machine of a drum washing machine. In a drum washing machine having a motor, a first stirring frequency is set at a predetermined first rpm. R1) repeating and then performing a stirring operation of the motor repeating a second stirring frequency R1 at a preset second RPM clockwise for a preset first time T1; Stopping the stirring operation of the motor rotating in the clockwise direction for a second preset time T2; Performing the stirring operation of the motor to repeat the first stirring frequency (R1) with the first RMP and then repeat the second stirring frequency (R1) with the second RMP in a counterclockwise direction for a preset first time (T1) step; And stopping the stirring operation of the motor rotating in the counterclockwise direction for a second predetermined time T2, so that the centrifugal force is rotated by appropriately combining different ALPMs during the stirring operation of washing. Separating and compressing the cloth by the flow space can be secured to have an effect of preventing the performance degradation of the drum washing machine.

Description

Motor control method for drum washing machine {Method for Controlling Motor of Drum Washing Machine}

The present invention relates to a drum washing machine, and more particularly, to a motor control method of a drum washing machine.

In general, a washing machine is a machine for washing laundry by performing washing, rinsing, and dehydrating strokes according to a predetermined algorithm. The washing machine is classified into a pulsator type, a stirring type, a drum type, and the like according to a washing method.

Hereinafter, the illustration about the structure of a drum type washing machine is abbreviate | omitted.

The drum washing machine includes a main body, a tub fixed to the inside of the main body by a damper, a laundry into which the laundry is put in, and a driving force of the motor is transmitted through a belt to rotate the washing machine to perform washing related administration, and the drum is supplied to the drum. A thermistor for measuring the temperature of the washing water, a detergent container for injecting detergent, a water supply pipe connected to the detergent container for supplying the washing water or the washing water in which the detergent of the detergent bottle is mixed, and the washing water used in the washing stroke are discharged to the outside. It is configured to include a drain pipe, and a pump and a drain hose connected to the end of the drain pipe for forcibly pumping the washing water.

In addition, referring to the operation of the drum washing machine configured as described above, first, when the user opens the door attached to the front of the main body, inputs laundry, and inputs a washing command through the control panel, the washing water is guided by the water supply pipe through the detergent container. Is filled in. Subsequently, when the washing water is filled above a certain level, the motor is driven and the drum rotates to perform washing.

On the other hand, when the washing is completed, the pump is operated so that the washing water is drained to the outside via the drain pipe and the drain hose, and when the drainage is completed, the rinsing and dehydration stroke is continuously performed to end the washing administration.

Hereinafter, a motor control method of a drum washing machine according to the prior art will be described with reference to the accompanying drawings.

As shown in FIG. 1, when the stirring control of the drum washing machine is started, the motor of the drum washing machine is set in the clockwise direction CW during the first preset time T1. The RPM or Revolution per Minute; , Called RPM) (S1).

Subsequently, the motor rotating in the CW direction is stopped for a preset second time T2 (S2), and then the motor of the drum washing machine is turned to the ALPM in the counterclockwise direction CCW for the first time T1. Rotate (S3).

In addition, the motor rotating in the CCW direction is stopped for the second time T2 (S4).

It is determined whether the predetermined stirring time of the motor agitation control of the washing machine has passed (S5), and if it is determined that the stirring time has not elapsed, the process returns to the step (S1).

On the other hand, if the stirring time has passed (S5), the stirring control of the motor ends.

At this time, conventionally, the stirring operation of the motor, as shown in Figure 2, the rotation in the CW direction, stop, the rotation in the CWW direction, the motor rotation cycle in the order of stop and the stirring operation is a predetermined number of times in a predetermined ALPM Is done.

As described above, the motor control method of the drum washing machine according to the prior art has a problem in that the washing function is deteriorated due to the lack of the flow space of the fabric because the stirring control of the drum washing machine is performed at a constant ALPM when the quantity is large.

In order to solve the problems of the prior art described above, an object of the present invention is to provide a motor control method of a drum washing machine to ensure the flow space of the fabric to prevent the performance of the drum washing machine.

1 is a flow chart showing a motor control method of a drum washing machine according to the prior art.

2 is a view showing a motor rotation cycle of the drum washing machine according to the prior art

3 and 4 is a flow chart showing a motor control method of the drum washing machine according to the present invention.

5 is a view showing a motor rotation cycle of the drum washing machine according to the present invention

The motor control method of the drum washing machine according to the present invention, in the drum washing machine having a motor, repeats the first stirring frequency (R1) with a predetermined first RPM (rpm) and then the second stirring frequency with a preset second ALPM ( R1) performing a stirring operation of the motor in a clockwise direction for a first predetermined time T1; Stopping the stirring operation of the motor rotating in the clockwise direction for a second preset time T2; Performing the stirring operation of the motor to repeat the first stirring frequency (R1) with the first RMP and then repeat the second stirring frequency (R1) with the second RMP in a counterclockwise direction for a preset first time (T1) step; And stopping the stirring operation of the motor rotating in the counterclockwise direction for a preset second time period T2.

Hereinafter, a motor control method of a drum washing machine according to the present invention will be described with reference to the accompanying drawings.

Here, the configuration of the drum washing machine is the same as described above, so the configuration and operation description thereof will be omitted.

3 and 4 is a flow chart showing a motor control method of the drum washing machine according to the present invention, with reference to this will be described in detail the motor control method of the drum washing machine according to the present invention.

First, when the stirring control of the drum washing machine is started, the stirring operation is repeated by a preset first number RMP by the predetermined first number of times R1 of the motor of the drum washing machine (S10).

When the stirring operation of the motor rotating in the first ALPM is performed the first number of times R1, the stirring operation of the motor of the drum washing machine is repeated by a second predetermined number of times R2 with the second predetermined RMP. (S11).

In this case, the stirring operation of the motor rotating in the first or second RMP will be described in more detail.

As shown in FIG. 4, first, the motor of the drum washing machine is rotated in the clockwise direction CW in the first or second RPM for the first predetermined time T1 (S20).

Subsequently, the motor rotating in the CW direction is stopped for a preset second time T2 (S21), and then the motor of the drum washing machine is rotated in the counterclockwise direction CCW for the first time T1. Or it rotates to the second ALPM (S22).

Then, the motor rotating in the CCW direction is stopped for the second time T2 (S23).

In this case, the preset second RMP is set to be twice or more than the first RPM.

Subsequently, it is determined whether a predetermined stirring time of the motor has elapsed (S12, S24), and if the stirring time of the motor has elapsed after the determination result (S12, S24), the stirring operation is stopped.

On the other hand, if the determination result (S12, S24), the motor stirring time of the drum washing machine has not elapsed, the process returns to the step (S10, S20).

Therefore, the stirring operation of the motor is performed by combining the number of times of stirring rotating in the first ALPM and the number of times of stirring rotating in the second ALPM at a predetermined ratio as shown in FIG. 5.

For example, in the stirring operation of the drum washing machine, when the ratio of the first AlpM to the second AlpM is set to 5: 1, if the stirring of the motor rotating in the first Alp is repeated 10 times, the rotation is made to the second Alp. The stirring of the motor to be repeated is repeated twice.

In the present invention, unlike the conventional stirring to perform the above-described stirring operation with a constant ALPM, it performs by combining the stirring operation of the motor having the first ALPM and the stirring operation of the motor having the second ALPM.

In the motor control method of the drum washing machine according to the present invention described above, by rotating the motor by appropriately combining different RMPs during the stirring operation of the motor, it is possible to secure a flow space by separating and compressing the cloth by centrifugal force. There is an effect that can prevent the performance degradation.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (4)

In a drum washing machine provided with a motor, The stirring operation of the motor is repeated for a preset first time T1 by repeating the first stirring frequency R1 with the preset first RPM and then repeating the second stirring frequency R1 with the preset second RPM. Performing in the direction; Stopping the stirring operation of the motor rotating in the clockwise direction for a second preset time T2; Performing the stirring operation of the motor to repeat the first stirring frequency (R1) with the first RMP and then repeat the second stirring frequency (R1) with the second RMP in a counterclockwise direction for a preset first time (T1) step; And, And stopping the stirring operation of the motor rotating in the counterclockwise direction for a preset second time (T2). delete The method of claim 1, The stirring operation of the motor The motor control method of the drum washing machine, characterized in that the combination of the number of times of stirring to rotate the first RMP and the number of times of rotation of the motor rotating to the second AlPM. The method of claim 3, wherein The second RMP is a motor control method of a drum washing machine, characterized in that more than twice the first RMP.