KR20110016326A - Controlling method of washing machine - Google Patents

Abstract

PURPOSE: A controlling method of a washing machine is provided to increase a dirty dirt removing performance by distinguishing the temperature of washing water in three steps through a dirty dirt washing step. CONSTITUTION: A controlling method is as follows. Washing water is supplied to a tub. By supplying washing water, dirt of laundry is expanded. Washing water is heated up to a first preset temperature and a drum is rotated so that dirt of a laundry is removed. Washing water is heated up to a second temperature higher than a first temperature and the drum is rotated so that residual dirt of the laundry is removed.

Description

Controlling Method of Washing Machine

The present invention relates to a control method of a laundry machine, and more particularly, to a control method of a laundry device for easily removing stinging.

In general, a washing machine is a device for removing dirt from laundry by the action of water and detergent.

The washing machine is largely divided into stirring, vortex and drum washing machines.

The stirring type washes by rotating the laundry rod rising to the left and right in the center of the washing tank, and the vortex type washes by using the friction force between the water flow and the laundry by rotating the disc-shaped rotary blade formed at the lower part of the washing tank to the left and right, and the drum type inside the drum. Add water, detergent and laundry to wash the drum by rotating it.

The drum washing machine is equipped with a tub in which washing water is accommodated in a cabinet forming an exterior, a drum in which laundry is accommodated, and a back of the tub is provided with a motor and a shaft for rotating the drum. .

The drum type laundry machine having the above-described configuration removes dirt contained in the laundry by the frictional force of the laundry water stored in the tub and the laundry stored in the drum, and the chemical action of the detergent stored in the laundry water.

Therefore, the combination of the rotational direction and the rotational speed of the drum is closely related to the washing performance of the washing machine.

On the other hand, since the drum is powered from the motor provided on the back of the tub, the combination of the rotational direction and the rotational speed of the drum designed to improve the washing performance of the washing apparatus must be considered the load on the motor.

The present invention is to solve the problem to provide a control method of the laundry machine that can easily remove the scum contained in the laundry.

In addition, the present invention is to solve the problem to provide a control method of the washing machine comprising a washing stroke when the temperature of the wash water divided into three stages in order to improve the removal performance.

In addition, the present invention is to solve the problem to provide a control method of the washing machine for driving the drum in various motions (defined as a combination of the rotational direction and rotational speed of the drum) in order to improve the removal performance.

The present invention, in order to solve the above problems, in the control method of the laundry machine comprising a tub in which the wash water is stored, and a drum rotatably provided in the tub to store the laundry, supplying the wash water to the tub A water supply step, a soaking step of soaking the waste water in the laundry by supplying the wash water, a waste removing step of heating the wash water to a predetermined first temperature, and removing the dirt contained in the laundry by rotating the drum; It provides a control method of a laundry machine comprising the step of heating the wash water to a second temperature set higher than the first temperature, the remaining dirt removal step of removing the dirt contained in the laundry by rotating the drum.

In this case, the soaking step may be characterized by soaking the laundry by supplying cold water.

In addition, the water supply step is to repeat the step of rotating the drum one way at a speed that the laundry is not separated from the inner circumferential surface of the drum, and stopping the rotation of the drum when the laundry is located in the rotational direction of the drum 180 degrees It may proceed with a step motion.

In addition, the water supply step is to repeat the step of rotating the drum at a speed that the laundry is not separated from the inner circumferential surface of the drum, and stopping the rotation of the drum when the laundry is located at a point more than 90 degrees rotational direction of the drum It may further include a scrub motion.

On the other hand, the soaking step repeats the step of rotating the drum in one direction at a speed that the laundry is not separated from the inner circumferential surface of the drum, and stopping the rotation of the drum when the laundry is located at 180 degrees of the drum's rotation direction. It may proceed with a step motion.

In this case, the dirt removal step is a tumbling motion in which the laundry on the inner circumferential surface of the drum falls by rotating the drum in one direction, and the laundry on the inner circumferential surface of the drum is rotated by rotating the drum in one direction. At least one of the rolling motion falling at a point less than 90 degrees of rotation of the drum may proceed.

In addition, the step of removing the remaining dirt is a step of rotating the drum in one direction at a speed that the laundry is not separated from the inner peripheral surface of the drum, and stopping the rotation of the drum when the laundry is located in the rotational direction of the drum 180 degrees It may proceed including a step motion to repeat.

On the other hand, the control method of the laundry machine of the present invention may be carried out before the water supply step, and may further include a quantity detection step of detecting the amount of laundry put into the drum.

In this case, when the quantity determined in the quantity detection step is more than a predetermined reference value, the water supply step is the step of rotating the drum in one direction at a speed that the laundry is not separated from the inner circumferential surface of the drum, and the washing water inside the drum The spraying may be performed including a filtration motion that is simultaneously performed.

In addition, the water supply step may further include a tumbling motion to rotate the drum in one direction so that the laundry on the inner circumferential surface of the drum falls at a 90 degree point in the rotation direction of the drum.

The dirt removing step may further include a tumbling motion in which the laundry on the inner circumferential surface of the drum falls in a direction of 90 degrees of rotation of the drum by rotating the drum in one direction.

In addition, the remaining dirt removal step includes a filtration motion to rotate the drum in one direction at a speed that the laundry is not separated from the inner peripheral surface of the drum, and spraying the washing water into the drum at the same time Can proceed.

According to the present invention, it is possible to achieve the effect of providing a control method of a washing apparatus that can easily remove the stings stuck on laundry.

In addition, the present invention can achieve the effect of providing a control method of the washing machine comprising a washing operation in the steaming wash divided into three stages of temperature of the washing water to improve the removal performance.

In addition, the present invention can achieve the effect of providing a control method of the washing apparatus for driving the drum in various motions (defined by the combination of the rotational direction and the rotational speed of the drum) to improve the removal performance when poke.

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

Unless otherwise defined, all terms in the specification are the same as the general meaning of the terms understood by those skilled in the art, and if the terms used herein conflict with the general meaning of the terms Is in accordance with the definitions used herein.

On the other hand, the configuration or control method of the device to be described below is not intended to limit the scope of the present invention, but to describe the embodiment of the present invention, the same reference numerals are used throughout the specification the same components Indicates.

1 is a perspective view of a washing machine that is the control object of the washing machine of the present invention.

The washing apparatus includes a cabinet 110 forming an exterior, a tub 120 provided inside the cabinet and supported by the cabinet, a drum 130 rotatably provided inside the tub, and laundry loaded therein. And a motor 140 for rotating the drum by applying torque to the drum, and a control panel 115 for allowing a user to select and execute a washing course.

The cabinet 110 includes a main body 111, a cover 112 provided on the front surface of the main body and coupled to each other, and a top plate 116 coupled to the upper portion of the main body. The cover 112 may include an opening 114 provided to allow access to and from the laundry, and a door 113 to selectively open and close the opening.

The drum 130 forms a space for washing laundry put into the drum 130. The drum 130 is rotated by receiving power from the motor 140. Since the drum 130 includes a plurality of through holes 131, the wash water stored in the tub 120 may be introduced into the drum 130 through the through holes 131, and the washing inside the drum may be performed. Water can flow out of the tub. Therefore, when the drum is rotated, the laundry put into the drum is removed from the dirt during the friction with the wash water stored in the tub.

The control panel 115 is not only a user can input the information related to the washing, but also configured to check the information related to the washing. That is, the configuration for the interface with the user.

Accordingly, the control panel 115 includes manipulation units 117 and 118 through which a user can input a control command, and a display unit 119 displaying control information according to the control command. And the control panel may include a control unit (not shown) for controlling the driving of the washing machine including the operation of the motor in accordance with the control command.

According to the control method of the washing apparatus of the present invention, the drum can be driven in various forms. That is, drum driving is performed in various forms as well as general tumble driving and spin driving. The tumble drive is a drum drive motion that drops after the laundry is lifted during washing or rinsing of a general drum washing machine, and the spin drive is a drum drive motion in which laundry is continuously rotated while the laundry is stuck inside the drum.

Drum drive motion in the present invention refers to the motion of the laundry flow in the drum associated with this as well as the RPM of the drum rotation. Accordingly, the present invention provides a control method of a motor for generating drum rotation, in particular, rotation of the drum for driving the drum in various drum driving motions.

Hereinafter, various drum driving motions applicable to embodiments of the present invention will be described in detail.

Figure 2 is a view showing a variety of drum driving motion utilized in the control method of the present invention laundry machine.

Drum driving motion means a combination of the rotational direction and the rotational speed of the drum, the laundry located inside the drum by the drum driving motion is different in the falling direction, the dropping time and therefore the flow of the laundry in the drum is different You lose. The drum driving motion is implemented by controlling the motor.

Since the laundry is lifted by the lift 135 provided on the drum inner circumferential surface when the drum rotates, the impact applied to the laundry can be changed by controlling the rotation speed and the rotation direction of the drum. That is, the mechanical forces such as friction between laundry, friction between laundry and washing water, and dropping impact of laundry can be changed. In other words, it is possible to vary the degree of tapping or rubbing the laundry for washing, it is possible to vary the degree of dispersion or flipping of the laundry.

Accordingly, the present invention provides a method of controlling a washing machine having various drum driving motions, and thus, the optimum drum type of the laundry, the degree of contamination of the laundry, the respective strokes, and the different drum driving motions according to the detailed steps constituting each stroke. It is possible to process the laundry by the mechanical power of. This can improve the washing efficiency of the laundry. In addition, due to the consistent drum drive motion it can prevent excessive washing time to reduce the time required.

On the other hand, in order to implement such various drum driving motion, the motor 140 is preferably a direct type motor. That is, the stator of the motor is preferably a tub 120 is fixed to the rear, the rotor of the motor is rotated to drive the drum 130 directly. This is because by controlling the rotation direction, torque, etc. of the motor, it is possible to immediately control the drum drive motion by preventing the time delay or backlash (maximum).

On the other hand, in the form of transmitting the rotational force of the motor to the rotating shaft through the pulley or the like, a drum driving motion in which a time delay or backlash is allowed, for example, a tumbling drive or a spin drive may be possible. Therefore, it is not desirable to implement a variety of drum driving motion. The type of driving method of the motor and the drum is obvious to those skilled in the art, so detailed description thereof will be omitted.

2 (a) is a diagram showing a rolling motion (rolling motion). The rolling motion is a motion in which the motor 140 rotates the drum 130 in one direction, and the laundry on the inner circumferential surface of the drum drops to the lowest point of the drum at a position less than about 90 degrees in the drum's rotation direction.

That is, when the motor 140 rotates the drum at about 40 RPM, the laundry located at the lowest point of the drum 130 ascends a predetermined height along the rotational direction of the drum 130 and is less than about 90 degrees in the rotational direction at the lowest point of the drum. As it rolls in position, it flows to the lowest point of the drum. Visually, when the drum rotates clockwise, the laundry continues to roll in three quadrants of the drum.

The laundry is washed through the rolling motion through friction with the wash water, friction between the laundry, and friction with the drum inner circumferential surface. And through this motion, the laundry is turned upside down enough to obtain the effect of gently scrubbing the laundry.

Here, the drum RPM is determined in relation to the radius of the drum. That is, as the RPM of the drum increases, centrifugal force is generated on the laundry in the drum. Due to the difference in size between the centrifugal force and gravity, the flow of laundry in the drum is changed. Of course, the rotational force of the drum and the friction between the drum and the laundry should also be considered.

Therefore, in the rolling motion, the RPM of the drum is determined so that the centrifugal force and the friction force are less than the gravity 1G.

FIG. 2B is a diagram showing tumbling motion.

The tumbling motion is a motion in which the motor 140 rotates the drum 130 in one direction, but the laundry on the inner circumferential surface of the drum falls to the lowest point of the drum at a position of about 90 to 110 degrees of rotation of the drum. The tumbling motion is a drum driving motion that is generally used during washing and rinsing because mechanical force is generated only by controlling the drum to rotate in one direction at an appropriate RPM.

That is, the laundry put into the drum 130 is located at the lowest point of the drum 130 before the motor 140 is driven. When the motor 140 provides torque to the drum 130, the drum 130 rotates, and the lift 135 provided on the inner circumferential surface of the drum moves laundry from the lowest point in the drum to a predetermined height. . If the motor 140 rotates the drum 130 to about 46 RPM, the laundry drops to the lowest point of the drum at a position of about 90 to 110 degrees in the rotational direction at the lowest point of the drum.

The tumbling motion generates a greater centrifugal force than the centrifugal force in the rolling motion, but the RPM of the drum is determined to generate less than the gravity.

Visually, tumbling motion is a form in which the drum moves from the third quadrant to a part of the second quadrant at the lowest point of the drum when it is rotated clockwise and then falls off the drum's inner peripheral surface to the lowest point of the drum.

Therefore, the tumbling motion allows the laundry to be washed by the impact force caused by friction and dropping with the wash water, thereby performing washing and rinsing with a mechanical force greater than that of the rolling motion. And, because the motion of falling off the drum to some extent it is effective to separate the tangled laundry and to disperse the laundry.

2 (c) is a diagram showing step motion. The step motion is a motion in which the motor 140 rotates the drum 130 in one direction, but the laundry on the inner circumferential surface of the drum drops from the highest point in the drum's rotational direction (a position of about 180 degrees) to the lowest point of the drum.

When the motor 140 rotates the drum 130 to about 60 RPM or more, the laundry can be rotated without falling by centrifugal force. The step motion is performed at a speed such that the laundry does not fall from the drum inner circumferential surface by the centrifugal force. After the drum is rotated, the drum is braked to maximize the impact force on the laundry.

In the step motion, the motor 140 rotates the drum at a speed at which the laundry does not fall from the outer circumferential surface of the drum by centrifugal force (about 60 RPM or more), and the laundry is located near the highest point of the drum (180 degrees in the rotational direction). The reverse torque is controlled to supply the drum 130.

Therefore, the laundry rises in the rotational direction of the drum at the lowest point of the drum 130 and then falls from the highest point of the drum 130 to the lowest point at the moment the drum is stopped by the reverse torque of the motor 140. Is a motion of washing by the impact force caused by the process of the laundry in the drum falls to the maximum drop. The mechanical force generated by such step motion is larger than the rolling motion or tumbling motion described above.

Visually, the step motion is a form in which the drum moves clockwise from the lowest point of the drum to the highest point of the drum from the third quadrant to the highest point of the drum and then suddenly falls off the inner peripheral surface of the drum to the lowest point of the drum. Therefore, since the distance falling in the drum in the step motion is the largest, it is possible to more effectively provide a mechanical force when the amount of small amount.

On the other hand, the motor 140 is preferably reversed braking for braking the drum. The reversed phase braking is a method of braking the motor by generating a rotational force in a direction opposite to the direction in which the motor is rotating. The phase of the current supplied to the motor can be reversed to induce a rotation force opposite to the direction in which the motor is rotating, and the reverse phase braking enables rapid braking of the motor. Accordingly, the reversed braking is the most suitable braking method for the step motion which gives a strong impact on the laundry.

Thereafter, the motor 140 applies torque to the drum 130 again to raise the laundry at the lowest point of the drum to the highest point. That is, after the torque is applied to rotate clockwise, the torque is momentarily stopped by applying the torque to rotate in the counterclockwise direction, and then the step motion is implemented by applying the torque to rotate clockwise again.

As a result, the step motion is a motion of washing the laundry and the laundry introduced into the through-hole 131 during the rotation of the drum, and washing the laundry by the impact force when the laundry is located at the top of the drum.

Figure 2 (d) is a view showing a swing motion (swing motion). The swing motion is a motion in which the motor 140 rotates the drum 130 in both directions, and the laundry is dropped after passing through a 90 degree point in the rotation direction of the drum.

That is, when the motor 140 rotates the drum 130 counterclockwise to about 40 RPM, the laundry located at the lowest point of the drum 130 rises a predetermined height counterclockwise. In this case, the motor stops the rotation of the drum after the laundry passes through the counterclockwise 90 degree point of the drum so that the laundry falls after passing the counterclockwise 90 degree point of the drum in the direction of the lowest point of the drum.

Thereafter, the motor 140 rotates the drum 130 clockwise to about 40 RPM so that the falling laundry rises a predetermined height clockwise along the rotational direction of the drum. Meanwhile, the motor 140 stops the rotation of the drum after the laundry passes through the clockwise 90 degree point of the drum so that the laundry falls in the direction of the lowest point of the drum at the position past the clockwise 90 degree point of the drum.

In other words, swing motion is a motion in which the drum rotates in one direction and stops and the rotation and stops in reverse direction. Visually, the laundry rises from the three quadrants of the drum to a portion of the second quadrant and then falls gently. It can be said to be a form that repeatedly rises up and falls smoothly.

At this time, the braking of the motor 140 can minimize the load generated on the motor 140 by using the power generation braking, minimize the mechanical wear of the motor 140, and at the same time can control the impact applied to the laundry.

The power generation braking is a braking method in which the motor acts as a generator by rotational inertia when the current applied to the motor is turned off. When the current applied to the motor is turned off, the direction of the current flowing through the coil of the motor is opposite to the direction of the current before the power is turned off. Therefore, a force (Fleming's right hand law) acts in a direction that hinders the rotation of the motor, thereby braking the motor. The power generation braking, unlike the reverse braking, does not brake the motor smoothly but smoothly changes the rotational direction of the drum.

Thus, visually, the swing motion is a form in which the laundry flows in the form of eight characters lying sideways over the third and fourth quadrants of the drum.

Figure 2 (e) is a view showing a scrub motion (scrub motion). The scrub motion is a motion in which the motor 140 rotates the drum 130 in both directions, and the laundry is dropped at a position of about 90 degrees or more in the rotational direction of the drum through reverse braking.

That is, when the motor 140 rotates the drum 130 counterclockwise to about 60 RPM or more, the laundry located at the lowest point of the drum 130 rises a predetermined height counterclockwise. At this time, the motor is to stop the rotation of the drum by providing a reverse torque to the drum after the laundry has passed the counterclockwise position of about 90 degrees. Then, the laundry on the inner circumferential surface of the drum drops rapidly.

Thereafter, the motor 140 rotates the drum clockwise at about 60 RPM to raise the dropped laundry a predetermined height clockwise. The motor 140 stops rotation of the drum by providing reverse torque to the drum 130 when the laundry passes through the clockwise 90 degree position of the drum. Therefore, the laundry on the inner circumferential surface of the drum falls to the lowest point of the drum at a position 90 degrees or more clockwise of the drum.

Thus, the scrub motion is to wash the laundry by dropping the laundry sharply at a predetermined height. On the other hand, the motor 140 is preferably reversed braking for braking the drum.

Since the direction of rotation of the drum is sharply switched, the laundry does not deviate greatly from the inner circumferential surface of the drum, thereby obtaining a very strong rubbing effect. The scrub motion is a form in which the laundry moved to the part of the second quadrant after the third quadrant drops sharply and moves again to the part of the first quadrant after the fourth quadrant. Therefore, it can be said that the laundry which rises visually descends along the inner peripheral surface of a drum.

Figure 2 (f) is a view showing the filtration motion (filtration motion). The filtration motion is a motion in which the motor 140 rotates the drum 130 so that the laundry does not fall from the inner circumferential surface of the drum by centrifugal force, and sprays the washing water into the drum.

That is, the filtration motion is in close contact with the inner circumferential surface of the drum after the laundry is unfolded, so that the washing water is sprayed into the drum while the washing water is rotated by the centrifugal force to the tub 120 through the laundry, the through hole 131 of the drum. Get out. Therefore, the filtration motion expands the surface area of the laundry in contact with the wash water, while allowing the wash water to penetrate the laundry, thereby obtaining the effect of evenly supplying the wash water to the laundry.

The method of spraying the washing water on the drum in the filtration motion may be implemented by circulating and spraying the washing water stored in the tub using a circulation passage (not shown) and a pump (not shown).

On the other hand, the filtration motion may proceed to rotate only the laundry is in close contact with the inner peripheral surface of the drum without spraying the wash water, which is applied to induce the dispersion in the washing process after lapping to induce dispersion Can be.

In addition, the filtration motion may be implemented by spraying clean washing water supplied from an external water source without circulating the washing water stored in the tub, spray rinsing motion to distinguish from the case where the washing water stored in the tub is circulated Defined as (Spary Rinse motion). Since the spray rinse motion uses clean wash water, the spray rinse motion is suitable for a stroke requiring rinsing.

2 (g) is a diagram showing a squeeze motion. The squeeze motion repeats the operation of separating the laundry from the inner peripheral surface of the drum by lowering the rotational speed of the drum 130 after rotating the drum 130 so that the laundry does not fall from the inner peripheral surface of the drum by centrifugal force The motion of spraying the washing water into the drum during the rotation of the drum.

In other words, the filtration motion is continuously rotated at a speed at which the laundry does not fall from the inner circumferential surface of the drum, but the squeeze motion changes the rotation speed of the drum to repeat the washing and close contact with the inner circumferential surface of the drum 130. There is.

The process of spraying the washing water into the drum 130 during the filtration motion and the squeeze motion may be implemented as a circulation passage and a pump although not shown in FIG. 1. The pump communicates with the bottom surface of the tub 120 to pressurize the washing water, and the circulation passage may be provided so that one side is connected to the pump and the other side sprays the washing water from the top of the drum into the drum. .

However, since the above-described circulation flow path and the pump are necessary to inject the laundry water stored in the tub, it is not necessary to exclude the case of spraying the washing water into the drum through the injection water supply flow path connected to the water supply source outside the cabinet. no.

That is, if the injection water supply passage has one side connected to the water supply source, the other side is connected to the tub, but provided with a nozzle for injecting the washing water into the drum, washing water into the drum of the filtration and squeeze motion Will be able to spray.

3 shows the step motion in more detail. When the motor 140 applies torque to the drum 130 in a predetermined direction, the drum rotates in a predetermined direction, so that the laundry is brought into close contact with the inner circumferential surface of the drum 130. At this time, the drum is preferably rotated to about 60 RPM or more so that the laundry can rise in close contact with the inner peripheral surface of the drum. Here, the rotational speed of the drum is determined in relation to the inner diameter of the drum, and is determined as the rotational speed at which the centrifugal force becomes larger than gravity.

Immediately before the laundry reaches the highest point in the drum past the point of rotation of the drum 130 in the 90 degree direction, the motor 140 is braked in reverse to temporarily stop the rotation of the drum. Since the inverse braking timing of the motor 140 is closely related to the position of the laundry in the drum 130, a device capable of determining or predicting the position of the laundry is preferably provided, and a hole capable of determining the rotation angle of the rotor. An example is a sensing device having a Hall effect sensor.

Through the Hall sensor, the controller may determine the rotation direction as well as the rotation angle of the rotor. Details thereof will be apparent to those skilled in the art, and thus a detailed description thereof will be omitted.

The control unit may determine the rotation angle of the drum through the sensing device, and controls the motor 140 to reverse brake before the drum reaches 180 degrees. In this case, the reverse phase braking means applying a reverse phase current so that the drum rotates in the opposite direction. For example, after the current is applied to the motor to rotate clockwise, the current is suddenly applied to rotate counterclockwise.

Therefore, the drum rotated in the clockwise direction stops at an instant, and the angle is substantially 180 degrees so that the laundry drops from the highest point in the drum to the lowest point in the drum. Thereafter, current is continuously applied so that the drum continues to rotate clockwise.

3 illustrates a case in which the drum rotates clockwise, step motion may be performed during counterclockwise rotation. However, since the step motion generates a high load on the motor 140, it is preferable to lower the running rate.

The running rate is the ratio of the driving time of the motor to the sum of the driving time and the stopping time of the motor 140, and the running rate 1 means that the motor is driven without the stopping time. In the case of the step motion, it is preferable that the control rate is about 70% when considering the load of the motor. For example, the step motion may be stopped for 4 seconds after driving for 10 seconds.

4 is a view showing scrub motion in more detail. When the motor 140 applies torque to the drum 130, the laundry in the drum rotates clockwise. The drum 130 preferably controls the motor 140 to have a rotation speed of about 60 RPM or more so that laundry can rotate in close contact with the inner circumferential surface of the drum. Then, when the laundry passes through the 90 degree point in the rotational direction of the drum, the motor 140 is braked in reverse, so that the laundry closely attached to the inner circumferential surface of the drum falls to the lowest point of the drum.

When the laundry falls to the lowest point, the motor 140 provides torque for rotating the drum counterclockwise. Therefore, the dropped laundry adheres to the inner circumferential surface of the drum and rotates in a counterclockwise direction. When the laundry is located between a 90 degree counterclockwise point and the highest point of the drum at the lowest point of the drum, the motor is braked in reverse and thus close to the inner circumferential surface of the drum. The laundry will fall to the lowest point of the drum.

As described above, the scrub motion generates a high load on the motor 140 as in the step motion, and thus is preferably executed by lowering the running rate. The scrub motion is stopped at 4% after performing the scrub motion for 10 seconds to 70% running rate. One example is controlled.

On the other hand, although not shown in the swing motion is changed the braking method of the motor in the scrub motion to the power generation braking, and since the time of power generation braking is changed to when the laundry reaches the 90 degrees of the rotational direction of the drum, detailed description thereof will be omitted.

FIG. 5 is a graph comparing the cleaning force and the degree of vibration of each motion disclosed in FIG. 2. The horizontal axis represents the washing force, and the more the left side is, the easier it is to separate the dirt contained in the laundry. The vertical axis represents the vibration or noise level, and the vibration level increases as the upper direction increases, but the washing time for the same laundry decreases.

The step motion and scrub motion is a motion suitable for the washing course to reduce the washing time and the case of heavy contamination of the laundry due to the excellent washing power. In addition, the step motion and scrub motion is a motion with a high level of vibration and noise. Therefore, when the laundry is sensitive clothing or the washing course that needs to minimize noise and vibration is an undesirable motion.

The rolling motion is a motion characterized by excellent washing power and low vibration level, minimizing laundry damage and low motor load. Therefore, it can be applied to all washing courses, but it is a motion suitable for the initial washing detergent dissolution and washing wet.

The tumbling motion has a lower washing force than the scrub motion but the vibration level is a motion between the scrub motion and the rolling motion. Since the rolling motion takes longer washing time than the tumbling motion instead of low vibration level, the tumbling motion is applicable to all washing courses but is a useful motion especially for the step for podis dispersion.

The squeeze motion is similar to the tumbling motion in terms of the fine force, and the vibration level is higher than the tumbling motion. The squeeze motion is a useful motion for the step of rinsing because the washing water is discharged to the outside of the drum in the process of repeating the contact and separation of the laundry on the inner peripheral surface of the drum.

The filtration motion has a lower cleaning force than the squeeze motion, and the noise level is similar to that of the rolling motion. The filtration motion is a motion that is useful for the step where the washing water is discharged to the outside of the drum through the laundry in a state in which the laundry is in close contact with the inner peripheral surface of the drum.

The swing motion is the motion with the lowest vibration level and washing power. Therefore, swing motion is a motion that is useful for low noise or low vibration washing courses and is suitable for washing sensitive clothes.

As mentioned above, each drum drive motion has advantages and disadvantages. Therefore, it would be desirable to use these various drum driving motions appropriately. And each drum drive motion will have advantages and disadvantages in relation to the quantity. Therefore, even in the same course, the same stroke, etc., it would be desirable to use various drum driving motions appropriately in relation to the amount of load.

6 is a procedure showing a control method of a washing apparatus including a scum removing course, the control method of the present invention is a scum removing step selection step (S10), and a water supply step (S20) for supplying the wash water to the tub. And a washing stroke (S50, 50 ') for separating the steaming time from the laundry by rotating the drum, a rinsing stroke (S60) for rinsing the laundry, and a dehydration stroke (S70) for removing the washing water from the laundry. .

The user can select the removal process when the stabbing through the operation button provided in the control panel 115 of FIG.

When the removal course is selected when it is stuck, the quantity detection step (S20) of determining the amount (capacity) of the laundry put into the drum 130 is performed. The quantity detection step (S20) may be performed through various methods such as using a time taken to rotate the drum 130 to a predetermined position, or using a time for rotating the drum 130 after a predetermined time. have. In addition, the quantity detection step (S20) may be performed before the step of removing the selection course (S10).

If the measured quantity in the quantity detection step (S20) is smaller than the reference value compared to the preset reference value, proceed to the removal process (S40, S50, S60, S70) when a small amount of laundry for the small amount of laundry, and if the reference value is higher than Removal process proceeds (S40 ', S50', S60, S70).

The control method of the laundry machine of the present invention provides a washing course applicable to both small and large quantities of laundry, but the drum motion implemented in each washing step varies according to the measured quantity of laundry.

First, a case in which the quantity measured in the quantity detection step S20 is smaller than the reference value will be described.

If it is determined in the quantity detection step (S20) that the quantity is less than the reference value, the control unit (microcomputer, etc.) to control the water supply source (water supply passage, water supply valve, etc.) connected to the water source and the tub to supply the wash water to the tub. do.

In the water supply step S40, the controller controls the motor 140 to allow the drum 130 to perform a tumbling motion, a step motion, a scrub motion, a filtration motion, and a rolling motion.

The water supply step (S40) is a step for not only supplying the washing water required for washing to the tub 120, but also soaking the laundry put into the drum 130 in the washing water. Therefore, by providing the filtration motion in the water supply step (S40) it is possible to facilitate the core.

On the other hand, the step motion and scrub motion is easy to remove the insoluble dirt, such as soil by applying a drop impact to the laundry put into the drum, so if the motor 140 to control the filtration motion after the step motion and scrub motion Insoluble dirt can be removed in the water supply stage, which can be expected to improve the washing power and reduce the washing time.

In addition, when the laundry put into the drum is tangled, the drum may cause an eccentric rotation of the drum, so the water supply step S40 may be controlled so that the drum 130 performs the tumbling motion before the step motion and the scrub motion are performed. The tumbling motion is to rotate the drum in one direction, but the laundry is a motion to drop to the lowest point of the drum in the rotational direction of the drum about 90 degrees so that the tangled laundry can be dispersed.

In addition, when the wash water is supplied in the water supply step (S40), the detergent required for washing is also supplied, but it takes a predetermined time for the detergent to be dissolved in the laundry. If the washing process is performed while the detergent is not completely dissolved in the wash water, the detergent may remain in the laundry after the washing is completed. Therefore, the water supply step (S40) is preferably driving the drum 130 in a rolling motion suitable for detergent dissolution and bubbling before the end of the water supply of the wash water.

After the end of the water supply step (S40), the washing stroke (S50) is carried out in earnest during the steaming, the characteristic of the washing stroke (S50) when the steaming is called washing water of different temperatures step (S51), dirt removal step ( S52) and the remaining dirt removal step (S53), respectively, is to proceed to the laundry administration.

The soaking step (S51) is a step of soaking the stinginess contained in the laundry using cold water. The use of cold water (about 15 degrees C) in the soaking step (S51) is to consider the case that the protein component is included in the laundry steamed for a long time. Sponges containing protein components have a problem that is difficult to separate from the laundry because it is fixed in the laundry when in contact with hot water. Therefore, the soaking step () is performed for a predetermined time using cold water in order to prevent the scum containing protein components from being fixed to the laundry.

In this case, the controller controls the motor 140 to drive the drum 130 in step motion. Of course, the tumbling motion and the rolling motion may be further added after the step motion. Since the step motion is excellent in washing power and a motion that can shorten the washing time, there is an effect of inducing the separation from the laundry by giving a shock to the laundry at the same time as it is called the steaming time stuck in the laundry.

Subsequent to the soaking step S51, the washing water is heated in a range of 36 ° C. to 40 ° C. to remove dirt. In the dirt removal step (), the temperature of the wash water is set to a temperature between 36 ° C. and 40 ° C. to wash the dirt that is easily removed at a temperature similar to the body temperature, such as the sebum component included in the steaming. The method of increasing the temperature of the wash water to a predetermined temperature may be performed through a heat generator provided at the bottom of the tub or a steam generator capable of supplying steam to the inside of the tub.

In the dirt removal step (S52), the control unit preferably controls the motor 140 so that the drum 130 can be driven in a tumbling motion and a rolling motion. Since the tumbling motion and the rolling motion have a low motor load, high washing power and a shorter washing time, the tumbling motion and the rolling motion can expect the effect of shortening the washing time.

Following the dirt removal step (S52), the washing water is heated to about 60 degrees Celsius to sterilize and bleach the laundry. In the step of removing the residual dirt (S53), the temperature of the washing water may be about 60 degrees C or higher, so that the washing of the laundry may be sterilized and bleached.

In the step S53, the controller may control the drum 130 to be driven in a step motion, or control the step motion, the tumbling motion, and the rolling motion to proceed sequentially.

When the washing stroke (S50) is terminated, including the soaking step (S51), the dirt removal step (S52) and the residual dirt removal step (S53), the rinsing stroke (S60) and the dehydration stroke (S70) are continued. The rinsing stroke (S60) is a stroke for draining the wash water used in the washing stroke () when the steaming and removing the dirt and detergent remaining in the laundry by supplying the wash water, the dehydration stroke (S70) is a rinsing stroke It is a stroke to remove the wash water from the completed laundry.

Hereinafter, the control method of the laundry machine for performing the removal course when the amount of water measured in the quantity detection step (S20) is larger than the preset reference value will be described.

Compared to the case where the measured quantity in the quantity detection step (S20) is smaller than the preset reference value, when the measured quantity is larger than the preset reference value, the step motion that was performed in the washing operation (S50) when the small amount of laundry is stuck The difference is that it does not proceed.

The step motion is characterized by increasing the washing power by applying a shock to the laundry inside the drum due to free fall. If the amount of the laundry is large, it is not easy to drop the laundry at the highest point of the drum, so if the quantity is large, the step motion does not proceed. Not desirable.

If the amount is more than the reference value, in the water supply step (S40 '), the motor 140 controls the drum to be driven in tumbling motion, filtration motion and tumbling motion.

The soaking step (S51 ') of the washing stroke (S50') is driven by the tumbling motion and the rolling motion, and the dirt removal step (S52 ') is driven by the drum tumbling motion. In operation S53 ', the drum is driven in a filtration motion and a tumbling motion.

The description of the drum motion proceeded in each step and each step and the rinsing stroke and dehydration stroke performed after the washing stroke (S50 ') are the same as those described in the case where the quantity is smaller than the reference value. .

The present invention may be practiced in various forms and is not limited to the above-described embodiment. Therefore, if the modified embodiment includes the components of the claims of the present invention will be considered to belong to the scope of the present invention.

1 is a perspective view of a washing apparatus.

Figure 2 is a view showing a drum motion utilized in the control method of the present invention laundry machine.

3 is a detailed view of the step motion.

4 is a detailed view of the scrub motion.

5 is a graph comparing the washing power and vibration level of each motion.

Figure 6 is a procedure showing a control method of the laundry machine according to the present invention.

Claims (12)

In the control method of the laundry machine comprising a tub in which washing water is stored, and a drum rotatably provided in the tub to store laundry. A water supply step of supplying washing water to the tub; A soaking step of soaking the dirt contained in the laundry by supplying the washing water; A dirt removal step of heating the wash water to a first predetermined temperature and removing the dirt contained in the laundry by rotating the drum; And And a residual dirt removing step of heating the wash water to a second temperature set higher than the first temperature and rotating the drum to remove dirt contained in the laundry. The method of claim 1, The soaking step is a control method of a laundry machine, characterized in that soaking the laundry by supplying cold water. The method of claim 1, The water supply step Rotating the drum in one direction at a speed that the laundry is not separated from the inner peripheral surface of the drum, and the step motion to repeat the step of stopping the rotation of the drum when the laundry is located at a 180 degree rotation direction of the drum Method of controlling the washing machine, characterized in that the progress. The method of claim 3, The water supply step Rotating the drum at a speed at which the laundry does not separate from the inner circumferential surface of the drum, the scrub motion to repeat the step of stopping the rotation of the drum when the laundry is located at a point of more than 90 degrees rotational direction of the drum Method of controlling the washing machine, characterized in that the progress. The method of claim 1, The soaking step Including a step motion of repeating rotating the drum in one direction at a speed at which the laundry is not separated from the inner circumferential surface of the drum, and stopping the rotation of the drum when the laundry is located at a 180 degree rotational direction of the drum. Method of controlling the washing apparatus characterized in that the. The method of claim 5, The dirt removal step A tumbling motion in which the laundry on the inner circumferential surface of the drum falls by rotating the drum in one direction and drops at a 90-degree point in the drum's rotational direction; Rotating the drum in one direction to control the laundry including at least any one of the rolling motion that the laundry on the inner peripheral surface of the drum falls at a point less than 90 degrees of the rotation direction of the drum. The method of claim 5, The residue removal step Including a step motion of repeating rotating the drum in one direction at a speed at which the laundry is not separated from the inner circumferential surface of the drum, and stopping the rotation of the drum when the laundry is located at a 180 degree rotational direction of the drum. Method of controlling the washing apparatus characterized in that the. The method of claim 1, The control method of the laundry machine is carried out before the water supply step, further comprising a quantity detection step for detecting the amount of laundry put into the drum. The method of claim 8, When the quantity determined in the quantity detection step is equal to or greater than a preset reference value, The water supply step Washing apparatus comprising a filtration motion to rotate the drum in one direction at a speed that the laundry is not separated from the inner peripheral surface of the drum, and spraying the washing water into the drum at the same time Control method. 10. The method of claim 9, The water supply step And rotating the drum in one direction to further include a tumbling motion in which the laundry on the inner circumferential surface of the drum falls at a 90-degree point in the rotation direction of the drum. The method of claim 10, The dirt removal step And rotating the drum in one direction to further include a tumbling motion in which the laundry on the inner circumferential surface of the drum falls at a 90-degree point in the rotation direction of the drum. The method of claim 11, The remaining dirt removal step Washing apparatus comprising a filtration motion to rotate the drum in one direction at a speed that the laundry is not separated from the inner peripheral surface of the drum, and spraying the washing water into the drum at the same time Control method.

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