KR101192343B1 - Control method of drum type washing machine - Google Patents

Abstract

The control method of the drum washing machine according to the present invention includes a quantity detection step; A washing water supply step of performing water supply for washing after the quantity detection step; And a washing step of washing the drum by rotating the drum after the washing water supply step, wherein the washing water supply step supplies water to the rinsing level if the level of the quantity detected in the quantity detecting step is minimum, and the level of the quantity This has the advantage of minimizing the noise that can be generated when this is minimal.

Drum Washing Machine, Quantity, Drum, Quantity Detection, Laundry Watering, Laundry

Description

Control method of drum washing machine {Control method of drum type washing machine}

1 is a longitudinal sectional view showing an example of a drum washing machine to which an embodiment of a method for controlling a drum washing machine according to the present invention is applied;

2 is a flow chart of an embodiment of a control method of a drum washing machine according to the present invention;

3 is a cross-sectional view of the drum washing machine showing the water supply level when the level of the quantity is 1,

4 is a cross-sectional view of the drum washing machine showing the water supply level when the level of the quantity is 2,

5 is a cross-sectional view of the drum washing machine showing the water supply level when the level of the quantity is three,

FIG. 6 is a cross-sectional view of the drum washing machine showing the water supply level when the level of the quantity is any one of 4 to 7. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

The present invention relates to a control method of a drum washing machine, and more particularly, to a control method of a drum washing machine in which the washing water level is increased to reach a rinsing level when the quantity of the drum washing machine is small.

In general, a washing machine is a device that removes contaminants from clothing, etc. (hereinafter referred to as `` po '') by using the action of detergent and water, and is largely agitator type, pulsator type and drum type (drum). type) It is divided into washing machine.

The stirring type washing by rotating the laundry rod towering in the center of the washing tank to the left and right, the vortex type to rotate the disk-shaped pulsator or the washing tank to the left and right to wash by using the friction between the water flow and the cloth The drum type rotates the drum which the lifter protrudes, and the lifter raises a cloth and drops it to wash it.

Among the washing machines, the drum washing machine is formed to open and close the front and rear sides of the drum front and rear of the drum, and to wash the fabric using friction between the fabric and the drop of the fabric, so that the water level is stirred or vortex Set lower than the equation to minimize water consumption.

On the other hand, the drum washing machine supplies water only up to a constant washing level (hereinafter referred to as the 'standard water level') regardless of the amount of water for washing, and when the water supply level reaches the standard water level, the water supply is stopped and the drum is rotated. Wash the cloth only with a small amount of water.

When the drum washing machine is tumbling inside the drum in a state in which water is supplied to a reference level, not only the drop of the gun but also the friction between the guns increases, so that foreign matters in the gun are separated from the gun.

However, in the drum washing machine according to the prior art, when a large amount of foam is tumbled inside the drum while water is supplied to the reference level, the drop of the foam becomes larger than the friction between the foams, and when the drop falls on the inner lower portion of the drum, There is a problem that noise occurs.

The present invention has been made to solve the above problems of the prior art, to provide a control method of a drum washing machine that minimizes the noise generated when the carriage falls to the drum by minimizing the drop of the cloth when the bubble is large when washing. The purpose is.

The control method of the drum washing machine according to the present invention for solving the above problems comprises: a quantity detection step of detecting the amount of cloth injected into the drum of the drum washing machine; A washing water supply step of performing water supply for washing after the quantity detection step; And a washing step of washing the drum by rotating the drum after the washing water supply step, wherein the washing water supply step supplies water to the rinsing level if the level of the detected quantity is minimum.

A control method of a drum washing machine according to the present invention includes: a quantity detecting step of detecting an amount of cloth injected into a drum of a drum washing machine; A washing water supply step of performing water supply for washing after the quantity detection step; And a washing step of washing the drum by rotating the drum after the washing water supply step, wherein the washing water supply step supplies water by raising the water supply level step by step as the level of the quantity detected in the quantity detection step is lower.

A control method of a drum washing machine according to the present invention includes: a quantity detecting step of detecting an amount of cloth injected into a drum of a drum washing machine; A washing water supply step of performing water supply for washing after the quantity detection step; And a washing step of washing the drum by rotating the drum after the washing water supply step, wherein the washing water supply step supplies water based on the water supply level if the level of the quantity is equal to or higher than the set level, and sets the level of the quantity. If the level is lower, the lower the level of the quantity of water is, the higher the water level is.

The washing water supply step supplies water to the rinsing level if the level of the quantity detected in the quantity detecting step is minimum.

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

1 is a longitudinal sectional view showing an example of a drum washing machine to which the control method of the drum washing machine according to the present invention is applied.

 The drum washing machine shown in FIG. And a casing (2), a tub (10) installed in the casing (2), a drum (20) housed in an inner space of the tub (10), and a motor (30) for rotating the drum (20). do.

The casing 2 includes a base 3, a cabinet 4 mounted on an upper side of the base 3, and a cabinet cover 5 mounted on a front surface of the cabinet 4 and having a gun entry hole 5a. ), A door (9) rotatably mounted on the cabinet cover (5) to open and close the artillery access hole (5a), and a top plate (6) mounted on an upper surface of the cabinet (4). .

On the upper surface of the top plate 6 or the upper part of the cabinet cover 5, a control panel 7 input by a user for selecting washing, rinsing, dehydration stroke, etc. of the drum washing machine is mounted.

The tub 10 is a fresh water for washing or rinsing, and collects the dewatered water from the fabric, and consists of a cylinder lying horizontally or inclined forward, and the cloth inlet hole 5a of the cabinet cover 5. An opening hole 12 is formed at a rear side, and a gasket 14 having a sealing part in close contact with the door 9 is mounted at a circumferential front of the opening hole 12.

The tub 10 is supported by the damper 4a on the upper side of the base 3 so as to be buffered, and supported by the spring 4a on the cabinet 4.

The drum 20 is to be received for washing, rinsing, dehydration, and the like, and is spaced apart from the inner surface of the tub 10.

The drum 20 is formed of a cylinder lying horizontally or inclined forward, the entrance hole 21 is formed so that the front (m) is allowed to enter the front portion, and the water flows into the circumference or the rear portion A plurality of handmade holes 22 are formed, and a lifter 23 is mounted on the inner circumferential surface of the circumference to lift and drop the laundry m.

The motor 30 has a stator 32 mounted on the rear surface of the tub 10, a rotor 34 rotated in interaction with the stator 32, and the rotor so as to rotate together with the rotor. The rotating shaft 36 built in the electron 32 is comprised.

The stator 32 is provided with a hall sensor 33 so as to measure the rotation angle or ALPM of the rotor 34.

The rotating shaft 36 is disposed to penetrate the rear portion of the tub 10, is rotatably supported by bearings 37 and 38 mounted to the tub, and a rear end thereof is built up in the rotor 32. The front end is connected to the rear side of the drum 20.

The upper side of the tub 10 is connected to a water supply device for supplying clean water without detergent or water containing detergent to the inside of the tub 10.

The water supply device is connected to the external hose 40, the water supply valve 41 to control the clean water supplied through the external hose 40, and the water supply hose 42 for guiding the water passing through the water supply valve 41 ), A detergent reservoir 43 having a detergent storage space, a water supply passage, and an outlet formed to mix and discharge the water supplied through the water supply hose 42 with a previously stored detergent, and the detergent discharged from the detergent container 43 One end is connected to the outlet of the detergent container 43 and the other end is connected to the water inlet formed on the upper side of the tub 10 so as to guide clean water containing no water or detergent included into the tub 10. And a feedwater bellows tube (44).

In addition, a drain 15 for draining water is formed at the lower side of the tub 10, and a draining bellows tube 48 for guiding the drained water is connected to the drain 15.

The drainage bellows pipe 48 pumps water drained from the tub 10 through the drain hole 15 and the draining bellows pipe 48 to be discharged to the outside or circulated back into the drum 20. 50 are connected.

The pump unit 50 includes a pump case 52 and a drain pump 54.

The pump case 52 is formed with a connector to which the drain bellows pipe 48 is connected, and a flow path through which water passes is formed in communication with the drain pump 54, and foreign substances such as seams mixed in the water are filtered out. Is equipped with a filter (not shown).

A drain hose 55 disposed to extend outside the casing 2 is connected to the drain pump 54 so that water introduced into the pump case 52 at the time of drainage of the drum washing machine is connected to the drain hose 55. Drain to the outside via

On the other hand, the drum washing machine is provided with a water level detection device for detecting the water level of the water supplied.

The water level detection device is connected to the water level detection bellows pipe (80) connected to one side of the drain bellows pipe (48), and the water level detection bellows pipe (80) through the bottom of the water filled in the water level detection bellows (80) An air chamber 82 filled with air acting on pressure according to the water level, a water level detecting tube 84 having a lower end connected to one side of the air chamber 82, and an upper end of the water level detecting tube 84 are connected to each other. It is configured to include a water level sensor 86, which is a water level detector for sensing the air pressure in the water level detection tube 84.

Reference numeral 90 denotes the motor 30 according to the operation of the control panel 7, the water level detected by the water level sensor 86, and the amount of water detected by the ALPM measured by the hall sensor 33. It is a control part which controls the water supply valve 42, the drain pump 54, etc.

2 is a flow chart of an embodiment of a control method of a drum washing machine according to the present invention.

In the control method of the drum washing machine according to the present embodiment, when the washing stroke is input through the control panel 7, as illustrated in FIG. 2, the quantity detection S1, the washing water supply steps S2 to S14, and the washing are performed. Step S15 is executed in sequence.

The quantity detection S1 may calculate the quantity of quantity according to the time required to rotate the rotor 34 of the motor 30 by one rotation and maintain the constant speed for a predetermined time by starting the motor 30. After the motor 30 is turned off, the pulse width modulation (PWM) duty value from the start of the motor 30 to the end of the constant speed maintenance and the rotational rotation angle after turning off the motor 30 are measured. It is also possible to calculate the dose according to the modulation (PWM) duty value and the margin of rotation of the force, and of course, it is possible to calculate by other methods other than the above calculation.

In the control method of the drum washing machine according to the present embodiment, the water supply level (H ₀ ) (H ₁ ) (H ₂ ) (H ₃ ) of the washing water supply step (S2 ˜ S13) according to the detection result of the quantity detecting step (S1). Determine.

The quantity detected in the sensing quantity detection step S1 is divided into a plurality of quantity levels, and the water supply level H ₀ (H ₁ ) (H ₂ ) (H ₃ ) of the washing water supply stages S2 to S14 is It is determined according to the level of the detected quantity of water, and if the level of the quantity is more than the set level, the reference level (H ₀ ) is the water level of the washing water supply step (S2 to S14), and if the level of the quantity is less than the set level, the reference level The water level H ₁ (H ₂ ) (H ₃ ) higher than (H ₀ ) is set as the water supply level of the washing water supply steps S2 to S14.

That is, the set level is a level for determining whether the water supply level of the washing water supply step S2 to S14 is higher than the reference water level H0 or the reference water level H ₀ , and the water level is supplied to the reference water level H ₀ . After the drum 20 is rotated, the amount of noise generated when the drum 20 is not generated or the noise is fine is set to the set level by an experiment or the like.

Hereinafter, the level of the quantity of water is classified into 1 to 7 levels, and if the level of the quantity of water is 4 or more, the reference water level H ₀ is set as the water supply level of the washing water supply stages S2 to S14. The water level H ₁ (H ₂ ) (H ₃ ) higher than the reference water level H ₀ will be described as being limited to the water supply level in the washing water supply steps S2 to S14.

In addition, when the level of the quantity of water is 1,2,3, the lower the level of the quantity of water to set the water supply level (H ₁ ) (H ₂ ) (H ₃ ) is higher, the smaller the level of the quantity of laundry washing water supply step It is also possible to set the water supply level of steps S2 to S13 high in steps, and to set it nonlinearly high. The smaller the level of the dose is, the higher the water supply level in the washing water supply steps S2 to S14 is. It describes only by setting.

In addition, when the level of the quantity of the quantity is the minimum of the quantity of the quantity of 1,2,3, when the level of the quantity of the quantity is the minimum is 1, the water level of the washing water supply step (S2 ~ S14) to reach the rinsing level to be described later Set it.

That is, when the level of poryang is 1, a more water level (H ₁₎ when the level of the poryang 1 days, if the washing water supply step (S2 ~ S14) the water level in the rinsing water level, and the level of poryang 2 The level is set low. If the level of the quantity is 3, it is set one level lower than the water level (H ₂ ) when the level of the quantity is 2, but is set higher than the water level (H ₀ ) when the level of the quantity is 4-7. .

3 is a cross sectional view of a drum washing machine showing the water supply level when the level of the quantity is 1, FIG. 4 is a cross sectional view of the drum washing machine showing the water level when the level of the quantity is 2, FIG. Fig. 6 is a cross sectional view of the drum washing machine showing the water supply level when the level of the quantity of water is any one of 4-7.

The, when the level of poryang 4 to 7. If is set to the water level (H) based on the water level (H _O), the level of poryang 3 days, water level (H) as shown in Figure 3 to 6 are The water level H is set to a level higher than the reference water level H ₀ by the first set water level m, H ₁ = H _O + m. The water level (H ₂ = H _O + m + n) is set higher than the water level (H ₁ ) by the second set water level (n). The water level (H ₃ = H _O + m + 2n) is set to be twice as high as the second set water level (n) than the water level (H ₁ ) at this time.

 That is, when the amount of guns is the smallest in the drum 20 and the level of the guns is 1, there are few guns in the drum 20 so that the drop of the guns falling from the inside of the drum 20 becomes large and the gun and the drum 20 collide. As the noise caused by this is increased, the water level (H) is as high as possible to reduce the actual drop height of the gun.

On the contrary, when there are many guns in the drum 20 and the level of guns is 4 to 7, there are a number of guns inside the drum 20 and the other tumbled together in the drum 20 dropped from the inner upper part of the drum 20. As the friction with the fabric falls and falls, the noise due to the collision between the drum and the drum 20 is small, as described above, in order to minimize the water consumption in order to minimize the water consumption (H) as much as possible.

If the level of the gun is 2 or 3, the drop of the gun is smaller than when the gun is at level 1, but becomes larger than when the gun is at the level of 4 ~ 7, considering the noise and water consumption (H) Denotes the water level (H ₂ , H ₃ ) between the rinsing water level H ₁ and the reference water level H ₀ .

Hereinafter, the washing water supply step (S2 ~ S14) and the washing step (S15) will be described in detail as follows.

First, as shown in FIG. 2, when the level of the quantity is 1, the controller 90 turns on the water supply valve 41 to supply water. (S2) (S3)

Water supplied through the water supply valve 41 is gradually filled in the inner lower portion of the tub 10, wherein the water level frequency detected by the water level sensor 86 is the first set level (m) than the reference level (H ₀ ) ) And the water level corresponding to the water level H ₁ , which is twice as high as the second set water level n, (23,4 Hz), the control unit 90 supplies water as high as the rinsing water level H ₁ . It judges that it has become and stops water supply. (S4) (S14)

That is, the control part 90 turns off the water supply valve 41.

In addition, the controller 90 drives the motor 30 to rotate the drum 20 so that washing may proceed.

When the level of the poryang as the drum 20 rotates in the case 1, as shown in the Pho (m) is 3 which fall in the inner upper portion of the drum 20, water is the reference water level (H ₀₎ since less than the first water level (m) and the second water level (n) 2 times the sum is the water supply to the rinsing water level (H ₁₎ high level (H ₁₎ as long as the, drum 20 is actually free fall in the interior When water is supplied to the reference water level H ₀ , the water becomes smaller, and the noise becomes smaller than when the drop of the cloth m is large.

On the other hand, as shown in Fig. 2, the control unit 90 turns on the water supply valve 41 to supply water when the level of the quantity is 2 (S5) (S6).

Water supplied through the water supply valve 41 is gradually filled in the inner lower portion of the tub 10, wherein the water level frequency detected by the water level sensor 86 is the first set level (m) than the reference level (H ₀ ) ) Reaches a frequency (eg, 23,5 Hz) corresponding to the water level H _{2 that} is as high as the sum of the second set water level n, the controller 90 controls the first set water level (H ₀ ). It is determined that water is supplied to the water level H ₂ as high as the sum of m) and the second set water level n, and the water supply is stopped. (S7) (S14)

That is, the control part 90 turns off the water supply valve 41.

In addition, the controller 90 drives the motor 30 to rotate the drum 20 so that washing may proceed.

As described above, when the level of the quantity of water is 2, when the drum 20 is rotated, the cloth m falling from the inner upper portion of the drum 20 is water as the reference level (H ₀ ) as shown in FIG. 4. Since the water is supplied by the water level H _{2 which} is higher by the sum of the first set water level m and the second set water level n, the actual drop in the drum 20 is water supplied at the reference water level H ₀ . In this case, it becomes smaller by the sum of the first set water level m and the second set water level n, and the noise becomes smaller than when the drop of the cloth m is large.

On the other hand, as shown in Fig. 2, the control unit 90 turns on the water supply valve 41 to supply water when the level of the quantity is 3 (S8) (S9).

Water supplied through the water supply valve 41 is gradually filled in the inner lower portion of the tub 10, wherein the water level frequency detected by the water level sensor 86 is the first set level (m) than the reference level (H ₀ ) When the water level H ₃ reaches a frequency corresponding to the level H ₃ , for example, 23,6 Hz, the controller 90 moves to the water level H ₃ higher than the reference level H ₀ by the first set level m. Judging that the water has been watered, the water supply is stopped. (S10) (S14)

That is, the control part 90 turns off the water supply valve 41.

In addition, the controller 90 drives the motor 30 to rotate the drum 20 so that washing or rinsing may proceed.

As described above, when the drum 20 is rotated when the level of the quantity of water is 3, the cloth m falling from the inner upper portion of the drum 20 is less than the reference water level H ₀ , as shown in FIG. 5. Since water is supplied by the water level H ₃ as high as the first set water level m, the actual drop inside the drum 20 is higher than the second set water level m ₃ when water is supplied to the reference water level H ₀ . It becomes as small as it is, and noise becomes smaller than when the fall of the cloth m is large.

On the other hand, the control unit 90, as shown in Figure 2, when the level of the amount of water is any one of 4-7, turn on the water supply valve 41 to supply water. (S11) (S12)

The water supplied through the water supply valve 41 gradually rises to the inner lower portion of the tub 10, and the frequency (for example, the water level frequency detected by the water level sensor 86 corresponds to the reference water level H ₀ ) (for example, 23, 9 Hz), the control unit 90 determines that the water is supplied to the reference water level H ₀ as shown in FIG. 6, and stops the water supply. (S13) (S14)

That is, the control part 90 turns off the water supply valve 41.

In addition, the controller 90 drives the motor 30 to rotate the drum 20 so that washing may proceed.

When the drum 20 is rotated when the level of the quantity is 4 to 7, as described above, the cloth m falling from the inner upper portion of the drum 20 is together in the drum 20, as shown in FIG. 6. It falls while rubbing against another tumbling cloth, and the noise generated when it hits the drum 20 is not so great.

On the other hand, after the washing step (S15) as described above for the washing set time, the control unit 90 stops driving the motor 30, and drives the drain pump 54 for the drainage step

The contaminated water in the tub 10 is drained to the outside of the drum washing machine, and if the contaminated water in the tub 10 is drained to the outside of the drum washing machine, the control unit 90 rotates the drum 20 at a high speed for the washing and dehydration step. The motor 30 is driven as much as possible, and the drum 20 centrifugally dehydrates the cloth to remove water from the cloth.

On the other hand, the control unit 90 stops driving the drainage pump 54 and the motor 30 after the laundry dehydration step as described above.

Thereafter, the controller 90 operates the drum washing machine according to whether the rinsing stroke is input or the number of times of the rinsing stroke.

In the following description, only one rinse stroke is input for convenience of explanation.

The controller 90 turns on the water supply valve 41 to supply water for the rinsing water supply step.

Water supplied through the water supply valve 41 is gradually filled in the inner lower portion of the tub 10, wherein the water level frequency detected by the water level sensor 86 corresponds to the rinsing water level H ₁ (for example, For example, when it reaches 23,4 Hz, the control unit 90 determines that the water is supplied to the rinsing water level H ₁ , and stops the water supply.

That is, the control part 90 turns off the water supply valve 41.

The controller 90 drives the motor 30 to rotate the drum 20 for the rinsing step so that the rinsing may proceed.

After the motor 30 is driven and thus the drum 20 rotates, the foam in the drum 20 is rinsed, and after the rinsing step S15 is performed for the rinse setting time, the controller 90 Stop the motor 30 and drive the drain pump 54 for the drain step.

If the contaminated water in the tub 10 is drained to the outside of the drum washing machine as in the washing stroke, and if the contaminated water in the tub 10 is drained to the outside of the drum washing machine, the controller 90 controls the drum 20 for the dehydration step. ) Drives the motor 30 to rotate at a high speed, and the drum 20 centrifugally dehydrates the fabric to remove water in the fabric.

On the other hand, the control unit 90 stops driving the drain pump 54 and the motor 30 after the dehydration step as described above.

In the control method of the drum washing machine of the present invention configured as described above, if the level of the quantity detected in the quantity detection step is a minimum, water is supplied to the rinsing level to minimize noise that may occur when the level of the quantity is minimum. There is an advantage.

The control method of the drum washing machine of the present invention has a merit of minimizing noise while using a minimum amount of water by supplying the water supply level step by step as the level of the quantity detected in the quantity detection step is low.

In the control method of the drum washing machine of the present invention, if the level of the quantity of water is more than the set level, water is supplied with the water level as the reference level, and if the level of the quantity is less than the set level, the water level is higher as the quantity of the quantity is lower. When the amount is large, there is an advantage of minimizing the amount of water used, and when the amount is small, noise is minimized.

Claims (5)

A quantity detecting step of detecting an amount of cloth injected into the drum of the drum washing machine; A washing water supply step of performing water supply for washing after the quantity detection step; It comprises a washing step of performing the washing by rotating the drum after the washing water supply step, The washing and supplying step is a control method of the drum washing machine, characterized in that the water supply to the rinsing water level, if the level of the quantity detected in the quantity detection step is the minimum. A quantity detecting step of detecting an amount of cloth injected into the drum of the drum washing machine; A washing water supply step of performing water supply for washing after the quantity detection step; It comprises a washing step of performing the washing by rotating the drum after the washing water supply step, The washing and supplying step is a control method of a drum washing machine, characterized in that the water supply level is gradually increased as the level of the quantity detected in the quantity detection step is lowered. A quantity detecting step of detecting an amount of cloth injected into the drum of the drum washing machine; A washing water supply step of performing water supply for washing after the quantity detection step; It comprises a washing step of performing the washing by rotating the drum after the washing water supply step, The washing water supply step is a drum washing machine characterized in that if the level of the quantity of water is more than the set level water supply level as the reference water level, if the level of the quantity of water is less than the set level, water supply level is increased as the level of the quantity of water is lower Control method. The method of claim 3, wherein The washing and supplying step is a control method of the drum washing machine, characterized in that the water supply to the rinsing water level, if the level of the quantity detected in the quantity detection step is the minimum. The method of claim 3, wherein The washing and supplying step is a control method of the drum washing machine, characterized in that if the level of the quantity is less than the set level, the water supply level is gradually increased as the level of the quantity is lower.

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