KR20020060336A - The rinse control method for a washing machine - Google Patents

Abstract

PURPOSE: A rinsing control method of a washing machine is provided to sufficiently immerse clothing by rotating a pulsator or a washing tub at proper speeds, thereby improving the rinsing efficiency. CONSTITUTION: A rinsing control method of a washing machine includes the steps of rotating a pulsator for separating clothing from an inner surface of a washing tub after dehydrating step(S1), supplying rinsing water while rotating the washing tub at a low speed for immersing the clothing(S2), and draining the rinsing water while rotating the washing tub at a high speed for discharging the rinsing water which permeates through the clothing(S3), wherein the above steps are repeated by the preset number of times and the rotation.

Description

RINSE CONTROL METHOD FOR A WASHING MACHINE

The present invention relates to a rinsing control method of a washing machine, and more particularly, a rinsing operation is performed using a small amount of rinsing water, and at the same time, a dehydration operation is performed and the laundry is separated from the inner wall of the washing tank during a re-rinsing operation, and then a rinsing operation is performed. It relates to a rinsing control method of a washing machine.

1 is a cross-sectional view showing a motor direct drive type washing machine.

In general, the motor direct drive type washing machine is supported as if it is suspended by four dampers 30 in the washing machine case 10, and a water storage tank 21 in which washing water or rinsing water is stored therein is installed, and the inside of the water storage tank 21. The laundry tank 23 is provided with laundry to be washed.

In addition, a lower portion of the reservoir 21, a drive motor 40 for driving the washing tub 23 is installed, the drain hose 26 and the drain valve 27 for discharging the wash water is connected.

The bottom surface of the washing tank 23 is provided with a pulsator 25 for increasing the efficiency of the washing.

The motor direct drive type washing machine includes washing and washing while the water tank 21 is driven by the operation of the driving motor 40 while the washing tank 23 is suspended by the damper 30 in the washing machine case 10. Rinse operation takes place.

Figure 2 is a flow chart illustrating a prior art rinsing method implemented in a motor direct type washing machine as described above.

In general, a washing machine washes laundry while a washing stroke, a rinsing stroke, and a dehydration stroke are continued.

Looking at the rinsing stroke with reference to Figures 1 and 2, after the washing stroke is completed, the water is supplied to the reservoir 21 again to reach the set level according to the washing amount, that is, the water supply is stopped, the drive motor 40 Is operated to perform a rinsing operation while rotating the washing tank 23 to the left and right.

After the rinsing operation is performed as described above, the driving motor 40 stops the operation, and as the drain valve 27 installed at the lower portion of the reservoir 21 is opened, the rinsing water in the reservoir 21 is drained from the drain hose 26. Drained to outside through.

Thereafter, while the driving motor 40 operates, a dewatering operation for removing residual rinsing water in the laundry by rotating the washing tank 23 at high speed is performed.

The rinsing stroke that is performed as described above is usually performed two to three times, and when the rinsing stroke is completed, the washing tank 23 is rotated at a high speed so that a dehydration stroke for removing water contained in the laundry is performed.

However, in the rinsing method of the conventional washing machine as described above, since the rinsing rinsing is possible only by filling the rinsing water to a certain height of the washing tank 23 so that the laundry is sufficiently immersed in the rinsing water, a large amount of rinsing water is used as well. The longer the water supply and drainage time, the longer the washing time is, and the rinsing performance is also reduced.

The present invention has been made to solve the above problems, the rinsing water by repeating the braking while rotating the washing blade or rotating the washing tank to separate the laundry attached to the inner wall of the washing tank after the washing stroke or the previous step of dehydration operation An object of the present invention is to provide a rinsing control method of a washing machine which is smoothly impregnated in laundry to improve rinsing performance.

1 is a cross-sectional view showing a washing machine of the prior art,

2 is a flow chart showing a laundry control method of the prior art,

3 is a cross-sectional view of the washing machine to which the rinsing control method of the washing machine according to the present invention is applied;

4 is a flowchart illustrating a rinsing control method of the washing machine according to the first embodiment of the present invention;

5 is a graph showing a change in the rotational speed of the washing tank in the first embodiment of the present invention,

6 is a graph showing a change in the rotational speed of the washing tank according to a second embodiment of the present invention,

7 is a flowchart illustrating a rinsing control method of a washing machine according to a third embodiment of the present invention;

8 is a graph showing a change in the rotational speed of the washing tank in the third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

51: reservoir 53: washing tank

55: washing wing 60: drive unit

61: drive motor 64: wing shaft

66: rotating shaft 70: clutch mechanism

71: clutch gear 73: slider

75: solenoid

Rinse control method of the washing machine of the present invention for realizing the above object, laundry separation step of rotating the washing blades to remove the laundry attached to the wall of the washing tank in the dehydration process to remove the water contained in the wash water; ; A rinsing water impregnation step of supplying rinsing water while rotating the washing tank at a low speed so that the rinsing water can be impregnated into the separated laundry; And a rinsing water discharge step of draining the rinsing water while rotating the washing tank at a high speed so that the rinsing water impregnated in the laundry can be discharged to the outside through the laundry.

In addition, the rinsing control method of the washing machine of the present invention for realizing the above object, in order to remove the laundry attached to the wall of the washing tank in the dehydration process to remove the water contained in the wash water so that the rinsing water can be impregnated in the laundry. A rinsing water impregnation step of supplying rinsing water while repeating a process of rotating / braking the washing tank; And a rinsing water discharge step of draining the rinsing water while rotating the washing tank at a high speed so that the rinsing water impregnated in the laundry can be discharged to the outside through the laundry.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a cross-sectional view of a dual shaft direct drive type washing machine to which a rinsing control method of the washing machine according to the present invention is applied.

The dual shaft direct drive type washing machine rotates only the washing vanes 55 in the washing tub 53 or the washing vanes 55 and the washing tub 53 integrally through the driving device 60 installed in the lower part of the water tank 51. It is configured to be.

The driving device 60 which enables such an operation is connected to the driving motor 61 generating rotational power, and the washing blade 55 at the center of the driving motor 61 to rotate the washing blade 55. Wing shaft 64 for transmitting the transmission shaft, and through the bearing shaft to the outside of the wing shaft 64 is inserted through the rotating shaft 66 for transmitting rotational force to the washing tank 53, and the rotating shaft 66 and the It is comprised by the clutch mechanism 70 provided between the drive motors 61 and intermittent the power transmitted from the drive motor 61 to the to-be-rotated shaft 66. As shown in FIG.

Here, the clutch mechanism 70 is coupled to the rotor 63 and the blade shaft 64 at the lower position of the through shaft 66, the clutch gear 71 and the lower end of the through shaft 66 When moving downward in the coupled state to move up and down, the slider 73 is coupled to the clutch gear 71 to transmit the rotational force to the rotating shaft 66, and the bearing housing which is located above the slider 73 It is comprised by the solenoid 75 which moves and moves the said slider 73 up and down.

When the solenoid 75 is operated such that the clutch mechanism 70 is turned off, the slider 73 is lowered to connect the clutch gear 71 and the rotating shaft 64 to the washing tank 53 together with the washing blade 55. The rotational driving force is transmitted to) to rotate integrally.

When the solenoid 75 is turned on, the slider 75 is separated by the clutch gear 71 while being lifted by the magnetic force. At this time, since the rotational force of the clutch gear 71 is not transmitted to the through shaft 66, the washing blade Only 55 will rotate.

The embodiments of the present invention applied to a washing machine including the dual shaft direct drive type washing machine as described above will be described with reference to FIGS. 4 to 8 as follows.

4 is a flowchart illustrating a rinsing control method of a washing machine according to a first embodiment of the present invention, and FIG. 5 is a graph illustrating a change in rotation speed of a washing tank in the first embodiment of the present invention.

The rinsing control method of the washing machine according to the first embodiment of the present invention, first, the washing wing 55 to remove the laundry attached to the wall surface of the washing tank 53 in the dehydration process to remove the water contained in the wash water Rotate (S ₁ ).

That is, when the dehydration operation process of the washing stroke or the dehydration operation process of the rinsing stroke of the previous step is finished, the laundry is dehydrated by the high-speed rotation of the washing tank 53 is attached to the inner wall of the washing tank 53.

At this time, by rotating the washing blade 55 to remove the laundry from the wall of the washing tank 53, the impregnation operation of the rinsing water to be operated later is made smoothly.

Here, a small amount of rinsing water may be supplied in the process of separating the laundry by rotating the washing blade 55 as described above.

And, the operation of rotating only the washing blade 55, referring to Figure 3, when the solenoid 75 is turned on to remove the slider 75 from the clutch gear 71, the washing tank when the drive motor 61 is operated 53 does not rotate, only the washing blade 55 is rotated.

Next, the rinsing water is supplied while rotating the washing tank 53 in one direction at a low speed so that the rinsing water may be impregnated in the laundry separated in the step (S ₂ ).

The reason why the washing tank 53 is rotated at a low speed is that when the washing tank 53 is rotated at a high speed, when the rinsing water is supplied, the laundry is also rotated at a high speed together with the washing tank 53, so that the rinsing water splashes against the laundry and rinses inside the laundry. It does not soak well.

Therefore, the washing tank 53 is rotated at a low speed so that the rinsing water can be sufficiently immersed in the laundry. The rotation speed of the washing tank 53 may vary depending on the system or the water supply pressure, but the diameter of the washing tank 23 is typically 525 mm. When rotating to less than 300rpm rinse water will smoothly penetrate the laundry.

Of these, the optimum rotational speed at which the rinsing water is best impregnated in the laundry is preferably set at about 100 rpm.

In addition, the rotation speed of the washing tank 53 is not limited to a specific rotation speed as described above, and as shown in FIG. 5, the impregnation operation of the rinsing water may be realized while gradually increasing the rotation speed of the washing tank 53 to about 300 rpm in the initial driving. Could be

Next, while rinsing water impregnated in the laundry passes through the laundry, the rinsing water is drained and dehydrated while rotating the washing tank 53 at a high speed in one direction (S ₃ ).

At this time, the water supply of the rinsing water is stopped, and the drain valve 27 is opened so that the rinsing water can be discharged.

In this rinsing water discharge operation, when the washing tank 53 is rotated at a higher speed than the speed at which the washing tank 53 rotates in the above-described rinsing water impregnation operation, the rinsing water with the laundry tries to escape the washing tank 53 by centrifugal force. Will generate power.

Therefore, the laundry is limited to the movement on the wall of the washing tank 53, but the rinsing water impregnated in the laundry is passed through the fiber network of the laundry, at this time, dregs, contaminants buried by the force exiting through the fiber network While separating the detergent, foam, etc. together through the hole of the washing tank 53 is drawn out to the reservoir 51.

In this way, contaminants, bubbles, and the like, including the rinsing water that flows out of the reservoir 51 are discharged to the outside through the drain hose (57).

In the rinsing water discharging operation as described above, the rotation speed of the washing tank 53 is preferably set to be increased to a rotational speed during the normal dewatering operation to 200 rpm or more through which the rinsing water penetrates the fiber network of the laundry.

Next, the operation of separating the laundry by rotating the washing blade 55 (S ₄ ), and the operation of supplying the rinsing water while rotating the washing tank 53 so that the rinsing water can be impregnated in the separated laundry (S ₅ ) And, the operation (S ₆ ) for draining and dehydrating the rinsing water while rotating the washing tank 53 at high speed is repeated.

However, in this case, the rotation direction of the washing tank 53 in the rinsing water impregnation step S ₅ and the rinsing water draining dehydration step S ₆ is the rinsing water impregnation step S ₂ and the rinsing water draining dehydration step in the previous step. (S ₃₎ is rotated in the washing tub 53 is rotated in the opposite direction at.

On the other hand, the rinsing water impregnation step (S ₂ ) (S ₅ ) in the washing tank 53 may continue to rotate at a constant speed, such as section 'A' in Figure 5, at a gradually higher speed, such as section 'B' It may be possible to enter the rinse water drainage step immediately after being accelerated.

The rinsing control method of the washing machine according to the third embodiment of the present invention as described above separates the laundry adhering to the inner wall of the washing tank 53 in a dehydration process before impregnating the rinsing water by rotating the washing tank 53 at a low speed. Since the water is made to be impregnated with the laundry, the rinsing water is more evenly impregnated with the laundry, thereby increasing the rinsing performance.

6 is a graph showing a change in the rotational speed of the washing tank according to the second embodiment of the present invention.

Rinsing control method of the washing machine according to the third embodiment of the present invention as described above washing blade 55 to remove the laundry attached to the wall surface of the washing tank 53 in the dehydration process as described in the first embodiment The laundry separation operation to rotate the progress is performed, in which the washing blade 55 is not rotated in one direction but is reversed left and right to remove the laundry in the washing tank 53 and stir the laundry.

Therefore, the laundry adhering to the wall of the washing tank is separated in the dehydration operation and the laundry which is bound together is released to some extent, so that the rinsing water is impregnated evenly in the fiber tissue of the rinsing water in the subsequent rinsing water impregnation step, and the laundry in the rinsing water draining dewatering step. Since the rinsing water flow path is formed in a variety of passages through the fiber tissue of the rinsing performance is increased accordingly.

Meanwhile, the rotation direction of the washing tank 53 in the rinsing water impregnation step and the rotation direction of the washing tank in the rinsing water draining dehydration step may be set to rotate in opposite directions as in the 'C' section of FIG. 6.

7 is a flowchart illustrating a rinsing control method of a washing machine according to a third embodiment of the present invention, and FIG. 8 is a graph showing a change in rotation speed of a washing tank in a third embodiment of the present invention.

In the washing control method of the washing machine according to the third embodiment of the present invention, first, in the dehydration process of removing water contained in the washing water, the laundry attached to the wall surface of the washing tank 53 may be removed and the rinsing water may be impregnated into the laundry. The rinsing water is supplied while repeating the process of rotating / braking the washing tank 53 so as to (S ₁ ).

That is, by operating the drive motor 61 to rotate the washing tank 53 in one direction, and in the process of rotating the washing tank 53 in one direction as described above rises to a certain speed to control the driving motor 61 washing tank 53 Quickly brake the laundry so that the laundry falls off the inner wall of the washing tank.

Then, as described above, the washing tank 53 is rapidly braked, the washing tank is rotated again in the reverse direction, and the driving motor 61 is controlled to rapidly brake the washing tank 53 again.

When the washing tank 53 is rotated to the left and right and the rapid braking is performed, the laundry is separated from the wall of the washing tank 53, and the laundry is entangled to some extent. Water is contained to increase rinsing performance.

Next, while rinsing water impregnated in the laundry passes through the laundry, the rinsing water is drained and dewatered while rotating the washing tank 53 at a high speed (S ₂ ).

Thereafter, the washing tank 53 is rotated and braked to perform a rinsing water impregnation operation (S ₃ ), and the washing tank 53 is rotated at a high speed in a direction opposite to the rotation direction of the washing tank 53 of the rinsing water discharge operation S ₂ . While rinsing water drainage dehydration operation is performed (S ₄ ).

In the rinsing control method of the washing machine according to the third embodiment of the present invention as described above, since the laundry attached to the wall of the washing tank 53 is separated in the dehydration process, the rinsing operation is performed while the rinsing water is supplied in a stirred state. The rinsing water is evenly impregnated in the fiber network of the laundry and permeated to improve the rinsing performance.

The rinsing control method of the washing machine of the present invention configured and operated as described above may be performed by repeating braking while rotating the washing blade or rotating the washing tank so as to separate the laundry attached to the inner wall of the washing tank after the washing stroke or the dehydration operation of the previous step. Rinse water is smoothly immersed in the laundry to provide the advantage that the rinsing performance is improved.

Claims (7)

A laundry separation step of rotating the laundry blades so as to detach the laundry attached to the wall of the washing tank in a dehydration process of removing moisture contained in the washing water; A rinsing water impregnation step of supplying rinsing water while rotating the washing tank at a low speed so that rinsing water may be impregnated in the laundry separated in the step; And a rinsing water discharge step of draining the rinsing water while rotating the washing tank at a high speed so that the rinsing water impregnated in the laundry can be discharged to the outside through the laundry. Rinse water impregnation step of supplying rinsing water while repeating the process of rotating / braking the washing tank so that the rinsing water can be impregnated while removing the laundry attached to the wall of the washing tank in the dehydration process of removing the water contained in the washing water. Wow; And a rinsing water discharge step of draining the rinsing water while rotating the washing tank at a high speed so that the rinsing water impregnated in the laundry can be discharged to the outside through the laundry. The method of claim 1, Rinsing control method of the washing machine characterized in that to supply the rinsing water in the laundry separation step. The method of claim 1, Rinsing control method of the washing machine characterized in that the washing wing is controlled to rotate while the left and right reversed in the laundry separation step. The method according to claim 1 or 2, The rinsing method of the washing machine is repeated as the set number of times, the washing direction of the washing tank in the rinsing water impregnation step and the rinsing water discharge step is rotated in the opposite direction to the washing tank rotation direction in the previous number Rinsing control method. The method according to claim 1 or 2, The rinsing method of the washing machine is a rinsing control method of the washing machine, characterized in that the rotating direction of the washing tank in the rinsing water impregnation step and the rotating direction of the washing tank in the rinsing water discharge step rotates in opposite directions. The method according to claim 1 or 2, The rinsing control method of the washing machine, characterized in that the drain valve is opened so that the rinsing water is discharged only in the rinsing water discharge step.