KR100598568B1 - Method of controlling wash out for a washing machine - Google Patents

Abstract

The present invention provides a rinsing control method of a washing machine for rinsing laundry by supplying the washing water after finishing the washing process, the method comprising: rotating a washing tank to drain the laundry after draining the cloudy washing water used in the washing stroke; Rotating the washing tub while supplying the washing water when the laundry is dewatered; Determining whether the level of the wash water supplied to the washing tank reaches the set reference level in the step; And washing the laundry by repeatedly driving and stopping the washing motor when the washing water is supplied to the reference level.

In the present invention, the step of rinsing the laundry repeats the driving and stopping of the laundry motor, but the initial rinsing of the laundry by using the flow of water generated by shortening the driving time than the stopping time, and the driving time of the washing motor after the initial rinsing Intermediate rinsing the laundry using the main water flow generated by longer than the stop time, and finally rinsing the laundry using the loose water generated by shortening the driving time of the washing motor after the intermediate rinse. Characterized in that made.

The present invention shortens the overall washing time because the water is supplied in the washing state in the washing tank in the rinsing cycle, and rinsing using the loose water in the initial rinsing and the final rinsing can prevent tangling of the laundry to improve the rinsing performance of the laundry. It has an effect.

Description

Method of controlling wash out for a washing machine

1 is a cross-sectional view showing the internal structure of a general washing machine,

2 is a flow chart illustrating a washing method of a general washing machine;

3 is a block diagram of a control device of a washing machine to which the present invention is applied;

Figure 4 is a flow chart illustrating a rinsing control method of the washing machine according to the present invention.

Explanation of symbols on the main parts of the drawings

10: control unit 20: function selection unit

30: temperature sensor unit 40: water level detection unit

50: weight detection unit 60: water supply valve drive unit

70: drain valve driving unit 80: washing motor driving unit

90: display unit 100: rotation speed detection unit

The present invention relates to a rinsing control method of a washing machine, and in particular, to rinse the laundry by using the loosening water after supplying the washing water in a low-speed rotation state of the washing tank to shorten the overall washing time and prevent tangling of the laundry. It relates to a rinse control method of a washing machine.

As shown in FIG. 1, in the general washing machine, a water tank 2 is disposed inside the main body 1, and a washing tank 3 for storing laundry in the water tank 2 is rotatably mounted. The pulsator 4 is rotatably mounted on the lower part of the washing tank 3, and the washing motor 6 is mounted on the bottom outside of the water tank 2 to rotate in the forward / reverse direction. It is connected with the clutch mechanism 9 by the pulley 7 and the belt 8. The clutch mechanism 9 receives the rotational force of the washing motor 6 through the pulley 7 and the belt 8 during washing and rinsing, and rotates the pulsator 4 at a low speed in the forward / reverse direction. The washing tank 3 is rotated forward at a high speed.

In addition, a drain valve 10 for draining the water in the tank 2 is installed at the bottom of the tank 2 so as to be connected to the drain pipe 11 extending outside. A drainage motor 12 for driving the drainage valve 10 for opening / closing the drainage pipe 11 is mounted between the drainage valve 10 and the drainage pipe 11.

On the other hand, the upper part of the main body 1 is provided with a water supply pipe 13 connected to an external water tap, and a water supply valve 14 that is opened when water is supplied to the water tank 2 in the middle of the water supply pipe 13 is provided.

In addition, the upper part of the main body 1 is provided with a display means for displaying the current operating state and various information of the washing machine and a key input means for inputting respective functions so that the user selects various functions of the washing machine.

In the general washing machine configured as described above, a washing method for washing laundry can be largely divided into a washing stroke S10, one or more rinsing strokes S20-S60, and a dehydrating stroke S70 as shown in the operation flow chart of FIG. Can be. In this case, the rinsing stroke is performed to sequentially perform the draining step, the dehydration step, the water supply step, and the rinsing step.

First, the washing stroke (S10) is a water supply step (S11) for supplying the wash water to the water tank (2) up to the reference level set by the user, and the forward / reverse washing motor (6) in accordance with the set reference level and the type of laundry It consists of a washing step (S12) to rotate the pulsator (4) left / right by rotating to rotate at a low speed.

After the washing stroke (S10) is finished, the rinsing stroke (S20-S60) is performed, the rinsing stroke is basically performed two to three times according to the set reference level, two to three times the rinsing stroke according to the user's selection In addition, up to five rinsing cycles can be performed repeatedly. This, rinsing stroke (S20) is a drainage step (S21) for draining the washed wash water in the water tank (2), and the intermittent dewatering step (S22) for intermittently high-speed rotation of the washing tank 3 while supplying the washing tank (3) And, the dewatering step (S23) for removing the water of the laundry by rotating the washing tank 3 at high speed, the stop step (S24) to stop the washing tank 3 by stopping the power supplied to the washing motor (6), Water supply step (S25) for supplying water to the water tank (2) up to the reference water level set by the weight of the laundry, and rinsing step (S26) to remove bubbles or detergent residues contained in the laundry by stirring the pulsator (4) left and right It is composed of The remaining rinsing stroke (S30-S60) is configured in the same manner as the rinsing stroke (S20) described above.

After the rinsing cycle (S20-S60) is finished, the dehydration stroke (S70) is performed, this dehydration stroke (S70) is a drainage step (S71) for completely draining the washing water in the tank, and intermittent dewatering to rotate the washing tank intermittently high speed Step S72, and the dewatering step (S73) for removing the water contained in the laundry by centrifugal force by rotating the washing tank at high speed.

When the dehydration stroke (S70) is finished, in the stop step (S80) to stop the power supplied to the washing motor 6 to stop the washing motor (6).

In the conventional washing machine, an intermediate dehydration step of performing intermittent dehydration and dehydration in a rinsing stroke (S20) is included, and such intermediate dehydration is performed at every rinsing stroke.

However, after performing intermediate dehydration in the rinsing stroke of the conventional washing machine, the water supply valve 14 is opened to supply water while the washing tank 3 is stopped, and the washing water flowing out of the water supply port (not shown) is washed in the washing tank 3. As it is supplied to the center of the water supply from the bottom surface of the washing tank (3) gradually rises until the water level of the washing tank reaches the set reference level to open the water supply valve 14 to supply the wash water.

After the process of supplying the wash water to the washing tank 3 is completed, the pulsator 4 was stirred left / right to rinse the laundry to remove bubbles or detergent residues contained in the laundry.

However, in the rinsing control method of the washing machine according to the prior art, the rinsing stroke is performed one or more times up to five times, and the washing tank 3 is stopped at every rinsing stroke to supply the washing water. Due to the lack of dissolution, the overall washing time required for the rinsing cycle was increased.

In addition, the water supply step is terminated to start the rinsing step, the laundry stuck to the wall surface of the washing tank (3) by the intermediate dehydration is poured into the center of the washing tank (3) at the same time while the wash water is supplied to the reference level Since the rinsing stroke is performed immediately by generating the main water flow by the pulsator 4, the laundry is not entangled and the result is that the rinsing is performed in the state in which the laundry is aggregated in a lump form, thereby degrading the rinsing performance of the laundry. There was this.

It is an object of the present invention to shorten the overall washing time and prevent tangling of laundry by rinsing the laundry by watering the washing water in a state in which the washing tank is rotated in the rinsing cycle and generating water after the completion of the water so as to improve the rinsing performance. To provide a rinsing control method of a washing machine.

An object of the present invention as described above in the rinsing control method of the washing machine to rinse the laundry by supplying the washing water after the completion of the washing stroke, rotating the washing tank to drain the laundry after draining the cloudy wash water used in the washing stroke Making a step; Rotating the washing tub while supplying the washing water when the laundry is dewatered; Determining whether the level of the wash water supplied to the washing tank reaches the set reference level in the step; If the wash water is supplied to the reference level in the above step is achieved by the step of rinsing the laundry by repeating the drive and stop of the washing motor.

The present invention is to rinse the laundry according to the initial rinsing and intermediate rinsing and the final rinsing to prevent the tangling of the laundry, the initial rinsing and the final rinsing repeats the driving and stop of the washing motor, but the driving time is shorter than the stop time While rinsing the laundry using the generated loosening stream, the intermediate rinsing is characterized in that the laundry is rinsed using the main stream generated by making the driving time of the washing motor longer than the stop time.

The loosening water flow in the initial rinsing and the final rinsing of the laundry according to the present invention is characterized by being generated by setting the driving time of the washing motor at 1/2 to 1/3 of the stopping time.

In addition, the time required for the initial rinsing, the intermediate rinsing and the final rinsing according to the present invention is characterized in that it is set at a ratio of about 1: 1: 0.5.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a block diagram of a rinsing control device of a washing machine applied to the present invention, the internal structure of the washing machine applied to the present invention is the same as Figure 1 will be described with reference to the same reference numerals.

In FIG. 3, the washing machine rinsing control device according to the present invention includes a control unit 10 for controlling the overall operation of the washing machine, a function selection unit 20 for selecting a desired washing function such as a washing stroke, a rinsing stroke and a dehydrating stroke, and a water tank ( 2) the temperature sensor unit 30 for sensing the temperature of the water supplied to the water level, the water level sensor 40 for detecting the water level of the water tank 2 and outputting a water level detection signal corresponding to the detected water level, and the weight of the laundry The weight sensing unit 50 for detecting the water, the water supply valve driver 60 for opening and closing the water supply valve 14 under the control of the control unit 10, and the opening and closing of the drain valve 10 under the control of the control unit 10 Under the control of the drain valve driving unit 70, the washing motor 6 driving the washing motor 6 under the control of the control unit 10, and displays the current operating state and various information of the washing machine under the control of the control unit 10 The display unit 90 to detect the rotational speed of the washing motor 6 to the detected rotational speed And a rotation Yes confined portion 100, for outputting a rotational speed detection signal.

4 is an operation flowchart showing a rinsing control method of a washing machine according to the present invention, and shows the performing steps for one rinsing stroke following the washing stroke. The rinsing control method of the washing machine according to the present invention performs an initial rinsing, an intermediate rinsing, and a final rinsing, and then returns to a starting step, thereby repeatedly performing a rinsing stroke for a predetermined number of times.

A rinsing control method of the washing machine according to the present invention having the configuration as described above will be described with reference to FIG. 4.

First, when the washing operation is completed, the control unit 10 controls the drain valve driving unit 70 to open the drain valve 10 to drain the turbid wash water in the water tank 2 through the drain pipe 11 (step S101). Subsequently, the control unit 10 rotates the washing tank 3 intermittently and at high speed by driving the washing motor 6 while opening the water supply valve 14 to supply the washing water to the washing tank 3 (step S102). . Subsequently, the control unit 10 drives the washing motor 6 in a state in which the water supply valve 14 is closed after intermittent dehydration to rotate the washing tank 3 at high speed to remove the water of the laundry (step S103). Subsequently, the control unit 10 stops the power supplied to the washing motor 6 to stop the washing tank 3 (step S104).

Subsequently, the control unit 10 rotates the washing tub 3 in one direction by driving the washing motor 6 in a state in which the water supply valve 14 opens to supply the washing water. That is, as the water level of the washing water supplied to the center of the washing tank 3 rises, the washing water gradually rises from the bottom surface of the washing tank 3, and the laundry poured from the wall surface of the washing tank 3 which is rotated at a low speed is washed in the washing tank 3. Rotating in the same direction as the rotation direction of the) is mixed with the washing water, as the washing tank 3 rotates at a low speed in one direction and the level of the washing water is increased, the tangling of the laundry is suppressed while the dissolution of the detergent residue contained in the laundry. This is promoted, and as a result, the overall washing time can be shortened (step S105). Subsequently, the control unit 10 determines whether the water level of the water tank 2 detected by the water level detecting unit 40 reaches the set reference water level (step S106). If the reference water level is not reached in step S106, the flow returns to step S105 to continue to supply the wash water.

When it is determined in step S106 that the reference water level is reached, the controller 10 controls the washing motor driving unit 80 to drive the washing motor 6 to generate a water flow to rinse the laundry initially. Is generated by stirring the pulsator 4 to the left and right. The control unit 10 sets the driving time of the washing motor 6 to be short and the stopping time thereof to be long. It is made by driving for a while, and then stops driving for "1 second", and as the initial rinsing by this loosening flow progresses, tangling of the laundry generated in the intermediate dehydration is gradually released (step S107).

Subsequently, the controller 10 determines whether the time counted from the time of starting the initial rinsing by the unwinding water reaches a preset first reference time. If the first reference time is long, the total washing time required for the rinsing stroke is determined. When the first reference time is increased and the first reference time is short, the laundry is entangled in a state where the tangle is not completely solved. Therefore, it is preferable to set it properly through a plurality of experiments, and in the embodiment, it is set to 1 minute (step S108).

When the first reference time is not reached in step S108, the flow returns to step S107. On the other hand, when the first reference time is reached in step S108, the controller 10 washes the laundry to perform an intermediate rinse of the laundry by the main stream. The washing motor 6 is driven by controlling the motor driving unit 80. The main water flow is controlled by the control unit 10 by setting the driving time of the washing motor 6 and the stopping time of the washing motor 6 to be short. Drive (6) for " 1.2 sec " and then stop driving for " 1 sec " (step S109).

Subsequently, the controller 10 determines whether the counted time reaches the preset second reference time from the time when the intermediate rinsing by the main stream starts, wherein the second reference time is used to determine bubbles or detergent residues contained in the laundry. It is preferable to set the time required for removal through a plurality of experiments properly and in an embodiment, set to 1 minute (step S110).

If the second reference time is not reached in step S110, the flow returns to step S109. On the other hand, if the second reference time is reached in step S110, the control unit 10 is loosened to entangle the laundry generated in the intermediate rinsing step. In order to perform the final rinsing of the laundry by the water flow to control the washing motor driving unit 80 to drive the washing motor 6, the loosening flow is the control unit 10 the driving time of the washing motor 6 is short The stop time is generated by setting a long time. For example, the washing motor 6 is driven for "0.4 seconds" and then stopped for "1 second" like the flow of water in the initial rinsing (step S111).

Subsequently, the controller 10 determines whether the time counted from the time point at which the terminal rinsing due to the unwinding water is started reaches a preset third reference time, wherein the third reference time is such that the laundry tangled in the intermediate rinsing step is released. It is preferable to set the time required to appropriately through a plurality of experiments, and in the embodiment, it is set to 30 seconds (step S112).

When the third reference time is not reached in step S112, the flow returns to step S111, while when the second reference time is reached in step S112, the flow returns to the start step to perform a rinsing cycle by a predetermined number of times.

As described above, when the rinsing stroke is performed one or more times after the washing stroke, the intermittent dehydration (S102) and the dehydrating step (S102) are performed every time, followed by the rinsing of the laundry. Subsequently, an intermediate rinse by the main stream is performed, and finally, after the intermediate rinse is finished, a final rinse by the loose stream is performed.

As described above, the present invention waters the washing water in a state in which the washing tank is rotated in one direction at a low speed in a row, so that the dissolution of detergent residues included in the laundry is promoted, thereby reducing the overall washing time required to rinse the laundry. .                     

In addition, the time required for the initial rinsing, the intermediate rinsing and the final rinsing is set at a ratio of about 1: 1: 0.5 to rinse the laundry, and the driving time of the washing motor is relatively relatively before and after the intermediate rinsing using the main stream. By rinsing the laundry by using a short unloading stream, it is possible to prevent the laundry from being entangled and ultimately improve the rinsing performance of the laundry.

Claims (4)

In the rinsing control method of the washing machine to rinse the laundry by supplying the washing water after finishing the washing administration, Rotating the washing tub to drain the laundry after draining the cloudy wash water used in the washing stroke; Rotating the washing tub while supplying the washing water when the laundry is dewatered; Determining whether the level of the wash water supplied to the washing tank reaches the set reference level in the step; And If the washing water is supplied to the reference water level in the above step comprises the step of rinsing the laundry by repeating the drive and stop of the washing motor, Rinsing the laundry Rinse the laundry using at least two types of water streams generated according to the size of the stop time relative to the driving time of the washing motor, wherein the at least two types of water streams are generated by generating the driving time shorter than the stop time. And a main water stream generated by making the driving time longer than the stop time. The method of claim 1, wherein rinsing the laundry Initial rinsing the laundry using the unloading stream, intermediate rinsing the laundry using the main stream after the initial rinsing, and finally rinsing the laundry using the unloading stream after the intermediate rinsing. Rinsing control method of the washing machine characterized in that. The method of claim 2, wherein the flow of water in the initial rinsing and the final rinsing of the laundry is generated by setting the driving time of the washing motor at 1/2 to 1/3 of the stopping time. The method of claim 2, wherein the time required to perform the initial rinsing, the intermediate rinsing and the final rinsing is set at a ratio of 1: 1: 0.5.

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