KR20070067389A - Linsing conntrol method of washing machine - Google Patents

Abstract

A method for controlling a rinsing course of a washing machine is provided to increase the rinsing efficiency even when a large amount of cloth is rinsed by performing the rinsing course using a uniform rinsing initial water supply level and a uniform rinsing set water level irrespective of amount of laundry. A method for controlling a rinsing course of a washing machine includes the steps of: supply water to a water level of the initial rinse stroke according to the detected amount of cloth(S31); agitating a washing tub after the water is supplied(S32); comparing the rinse setting water level with the current water level(S33); performing the rinsing stroke if the current water level is above the rinse set water level(S35) after the current water level is compared with the rinse set water level(S35); and dehydrating the cloth after the rinse process(S36).

Description

Lining conntrol method of washing machine

 1 is a cross-sectional view showing an internal configuration of a drum washing machine to which a rinsing stroke control method according to an embodiment of the present invention is applied;

2 is a flowchart illustrating a control method of a drum washing machine to which a rinsing stroke control method of the drum washing machine according to the present invention is applied.

<Explanation of symbols on main parts of the drawings>

The present invention relates to a rinsing stroke control method of a drum washing machine, and more particularly, to a rinsing stroke control method of a washing machine which performs a rinsing stroke at a water supply level according to a quantity detected in a quantity detection.

In general, a drum washing machine is a device for cleaning a cloth through a washing stroke, a rinsing stroke, a dehydration stroke, and the like to remove contamination from clothes, bedding, and the like contained in the washing tank by using the action of the washing water contained in the reservoir.

Recently, a washing time, a rinsing time, a dehydration time, a dehydration ALPM, and the like are set according to the amount of cloth (hereinafter referred to as a quantity) put into the washing tank to drive a motor for rotating the washing tank for a predetermined time or ALPM.

Meanwhile, the drum washing machine supplies water to a predetermined level regardless of the amount of water in the rinsing stroke to rinse the cloth, and then re-waters several times to set the rinsing level, and then rotates the washing tank to rinse.

However, the rinsing stroke of the conventional drum washing machine has a problem in that the rinsing performance may be deteriorated due to insufficient water supply when a large amount of rinsing is performed since the rinsing is performed after supplying water to a predetermined level and re-watering.

The present invention has been made in order to solve the above problems of the prior art, the rinsing stroke of the drum washing machine can increase the rinsing performance even when a large amount of rinsing water by setting the rinse initial water supply level and the rinse setting level according to the amount of water The purpose is to provide a control method.

Method for controlling a rinsing stroke of a washing machine according to the present invention for solving the above problems In the control method of the washing machine to sequentially perform a washing stroke and a rinsing stroke after sensing the amount of cloth injected into the washing machine, the rinsing stroke is the amount A rinse initial water supply step of supplying water up to the rinse initial water supply level set according to the detected quantity in the detection; A wetting step of washing the washing tank after the initial rinsing water supply step; A level comparison step of comparing a rinse setting level and a current level set according to the quantity detected by the quantity detection after the washing tank stirring step; A rinsing step of rinsing if the current water level is equal to or greater than the rinse setting level as a result of the comparison of the level comparison step; It characterized in that it comprises a dehydration step of dewatering the fabric after the rinsing step.

In addition, if the current water level is less than the rinse setting level as a result of the comparison of the water level comparison step, it is characterized in that the re-water supply is carried out, and the wetting step and the water level comparison step are repeated.

In addition, when the number of times the rinsing step is less than the set number of rinses by comparing the number of times of the rinsing step with the number of rinsing after the dehydration step, the initial rinsing water supply step and the subsequent rinsing times are repeated as many times as the remaining number of rinses It is done.

In addition, the set number of rinsing is characterized in that it is set according to the detected amount of the quantity detected.

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

1 is a cross-sectional view showing an internal configuration of a drum washing machine to which a rinsing stroke control method according to an embodiment of the present invention is applied.

 The drum washing machine shown in FIG. The cabinet 4 is disposed above the base 3, and the cabinet cover 5 having the gun entry holes 5a formed on the front of the cabinet 4 is mounted, and the gun entrance holes 5a are mounted on the cabinet cover 5. The door 9 for opening and closing the door is rotatably mounted, the top plate 6 is disposed on the upper surface of the cabinet 4, and the drum washing machine is placed on the upper surface of the top plate 6 or the upper part of the cabinet cover 4. A control panel 7 input by the user is arranged to select washing, rinsing, dehydration stroke, and the like.

On the upper side of the base 3, a reservoir 10 for holding wash water is supported to be buffered by a spring 3a or a damper 4a.

The reservoir 10 is formed of a cylinder lying on the side, the opening hole 12 is formed behind the four entrance hole (5a) of the cabinet cover 5, the circumferential front of the opening hole 12 A gasket 14 having a sealing portion in close contact with the door 9 is mounted.

In the inner space of the reservoir 10, the washing tank 20 for accommodating the cloth is positioned to be spaced apart from the inner surface of the reservoir 10.

The washing tub 20 is formed of a cylinder lying on its side, and an access hole 21 is formed to allow the cloth (m) to enter and exit the front portion, and a plurality of handwork to allow the wash water to flow into or around the circumference or the rear portion. A 22 is formed, and a lifter 23 is mounted on the inner circumferential surface of the circumference to lift and drop the laundry m.

The water tank 10 is equipped with a motor 30 that supports and rotates the washing tank 20.

The motor 30 includes a stator 32 mounted on the rear surface of the reservoir 10, a rotor 34 rotated in interaction with the stator 32, and the rotor to rotate together with the rotor. It consists of the rotating shaft 36 built in 32. As shown in FIG.

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

The rotary shaft 36 is disposed to penetrate the rear portion of the reservoir 10, is rotatably supported by the bearings 37 and 38 mounted to the reservoir, and a rear end thereof is built up in the rotor 32. , The front end is connected to the back side of the washing tank (20).

An upper side of the reservoir 10 is connected to a water supply device for supplying the wash water to the inside of the reservoir (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 of the detergent container 43 to guide the included water (hereinafter referred to as 'washing water') or clean water (hereinafter referred to as 'rinsing water') to the inside of the reservoir 10 A water supply bellows pipe 44 connected to the outlet and connected to the water supply port formed at the other end of the reservoir 10 is configured to include a bellows tube 44.

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

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

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

The filter case 52 is formed with a connection port to which the drain bellows pipe 48 is connected, and a flow path through which the wash water passes is formed in communication with the drain pump 54, and foreign substances such as seams mixed in the wash water are formed. A filtering filter (not shown) is mounted.

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 supplied wash water.

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 to sense the water level by detecting 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 of the washing water detected by the water level sensor 86, and the amount of water detected by the ALPM measured by the hall sensor 33. And a control unit for controlling the water supply valve 42 and the drain pump 54.

2 is a flowchart illustrating a control method of a drum washing machine to which a rinsing stroke control method of the drum washing machine according to the present invention is applied.

The control method of the drum washing machine shown in FIG. 2 is largely comprised of a quantity detection S1, a washing stroke S2, a rinsing stroke S3, and a dehydration stroke S4.

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

The control unit 90 sets various factors that affect the cleaning of the fabric, such as washing time, rinsing time, dehydration time, and dehydration ALPM, according to the result of the quantity detection S1.

In addition, the controller 90 sets at least one of the initial water supply level H1, the rinse setting level H2, and the number of rinsing times of the rinsing step S3 according to the result of the quantity detection S1, and then the initial water supply The description will be made only by setting both the water level H1 and the rinse setting level H2 and the number of rinses.

Here, the initial water supply level (H1), the rinse setting level (H2) and the number of rinsing times (for example, once, twice, three times) can be set in proportion to the amount of water, a predetermined table or Of course, it is also possible to set the dose by substituting a formula or the like, and for convenience of explanation, the following description will be limited to setting it in proportion to the dose.

That is, the controller 90 sets the rinse initial water supply level and the rinse setting level high when the quantity is large, and sets the rinsing frequency to be high. In addition, the number of rinses is set less.

On the other hand, the control unit 90 sets the various factors, and performs the washing stroke (S2), the washing stroke (S2) performs a water supply step, the wetting step and the resupply step, the amount of detection ( The washing step is performed for the washing time set according to S1), and then the draining step and the dehydration step are performed, and the washing step is finished.

Subsequently, the rinsing step S3 first performs a rinsing initial water supply step of supplying water to the rinse initial water supply level H1 set according to the quantity detected in the quantity detection S1.

The controller 90 turns on the water supply valve 41 until the water level detected by the water level sensor 86 reaches the initial water supply level H1.

The rinsing water when the water supply valve 41 is turned on is supplied to the inside of the water storage tank 10, and the water level rises gradually from the lower side of the water storage tank 10.

The controller 90 turns off the water supply valve 41 when the water level detected by the water level sensor 86 reaches the initial water supply level H1.

That is, when the quantity of water detected by the quantity detection S1 is large, the on time of the water supply valve 41 is long, and when the quantity is small, the on time of the water supply valve 41 is relatively short.

Meanwhile, the rinsing water supplied into the water storage tank 10 by turning on the water supply valve 41 is introduced into the washing tank 20 through the hand 22 of the washing tank 20, and the cloth (m) Soaked).

The control unit 90 drives the motor 30 forward and reverse so that the rinsing water is uniformly wetted with the cloth inside the washing tank 20 after the water supply valve 41 is turned off. / Rotate alternately. (S32)

As the washing tank 20 is rotated left / right alternately, the rinsing water is evenly soaked in the cloth (m) inside the washing tank (20), and when a large amount of cloth (m) is introduced, a large amount of rinsing water is supplied. As a result, the rinsing water is evenly and quickly soaked throughout the fabric (m).

Thereafter, the controller 90 stops the forward and reverse driving of the motor 30 after the forward / reverse driving of the motor 30 for the wetting is performed for a predetermined time (for example, one minute). .

When the driving of the motor 30 is stopped, some of the water that has been wetted by the cloth m exits the cloth m and accumulates in the inner lower portion of the washing tub 20.

Thereafter, the controller 90 performs a level comparison step of comparing the rinse setting level H2 set according to the quantity detected by the quantity detection S1 with the current level detected by the level sensor 86. S33)

Here, if the current water level detected by the water level sensor 86 is higher than the rinse set water level H2, if the rinse water is sufficiently wetted in the cloth m, and if the current water level is lower than the rinse set water level H2, Since the rinsing water was not sufficiently wetted in the cloth m, the controller 90 re-waters the water when the current water level is less than the rinse set water level H2 as a result of the comparison of the water level comparison step S33. (S34)

The control unit 90 may turn on the water supply valve 41 until the water level detected by the water level sensor 86 reaches the initial water supply level H1 at the time of rewatering, and the water supply valve ( It is also possible to turn on 41, and the following description will be limited to turning on the water supply valve 41 to a certain level for the convenience of description.

Thereafter, the controller 90 drives the motor 30 forward and reverse so that the rinsed water supplied after the water supply valve 41 is turned off is uniformly wetted again by the cloth inside the washing tub 20. The washing tub 20 is rotated left / right alternately. (S32)

The control unit 90 repeats the filling step (S32), the water level comparison step (S33) and the resupply water (S34) according to the stirring of the washing tank 20 until the current water level is at least the rinse set level (H2). .

On the other hand, the controller 90 performs a rinsing step of proceeding with the rinsing if the current level is more than the rinse set level (H2) as a result of the comparison of the level comparison step (S33) (S35).

The controller 90 rotates the washing tub 20 by driving the motor 30 during a rinsing time determined according to the quantity detection S1 or a rinsing time set by a user's input or course selection. The foam m in 20) works with the rinsing water and the foam remaining in the fabric is rinsed.

Here, in the rinsing step, it is also possible to drive the motor 30 to rotate the washing tub 20 in one direction, and the motor 30 is set to rotate the washing tub 20 alternately left and right. Of course, reverse driving is also possible.

On the other hand, after the control unit 90 performs the rinsing step (S35) during the rinsing time, the control unit 90 performs a dehydration step of centrifugal dehydration of the cloth in the washing tank 20 by driving the motor 30 at high speed.

The controller 90 compares the number of times of the rinsing step S35 after the dehydration step S36 with a set number of rinses set according to the detection of the quantity of water (S37).

The control unit 90 compares the initial rinsing step (S31) with the subsequent rinsing step (S32) (S32) (S34) (S35) when the number of times the rinsing step (S36) is performed is less than the set number of rinses. S36) (S37) is repeated.

On the other hand, if the number of times of performing the rinsing step (S36) is the set number of rinsing times, the entire rinsing step (S3) is terminated, and the subsequent dehydration step is performed (S4).

The rinsing stroke control method of the drum washing machine according to the present invention configured as described above sets the rinse initial water level and the rinse setting level of the rinsing stroke according to the detected quantity in the quantity detection, and performs the water supply to the initial rinse water level after the washing tank. After stirring, carry out the wetting, and then repeat the water supply and the wetting until the rinse setting level is reached, and if the rinse setting level is higher, the rinsing is performed, so that the constant rinse initial water level and the constant rinse setting level are independent of the quantity There is an advantage that can increase the rinsing performance when rinsing a greater amount of cloth.

In the rinsing stroke control method of the drum washing machine according to the present invention, since the number of rinses is set by setting the number of rinses according to the detected quantity in the quantity detection, the rinsing performance of the cloth is further improved.

Claims (4)

In the control method of the drum washing machine to perform a washing stroke and a rinsing stroke sequentially after sensing the amount of the cloth put into the drum washing machine, The rinsing stroke includes a rinse initial water supply step of supplying water up to the rinse initial water supply level set according to the amount of water detected by the quantity detection; A wetting step of washing the washing tank after the initial rinsing water supply step; A level comparison step of comparing a rinse setting level and a current level set according to the quantity detected by the quantity detection after the washing tank stirring step; A rinsing step of rinsing if the current water level is equal to or greater than the rinse setting level as a result of the comparison of the level comparison step; Rinsing stroke control method of the drum washing machine comprising a dehydration step of dewatering the fabric after the rinsing step. The method of claim 1, If the current water level is less than the rinse setting level as a result of the comparison of the water level comparison step, re-water supply is carried out, and the rinsing stroke control method of the drum washing machine, characterized in that repeating the step of weaving and the water level comparison step. The method of claim 1, The number of times of rinsing after the dehydration step is compared with the number of times of rinsing, and when the number of times of rinsing is less than the number of times of rinsing, the initial rinsing water supply step and subsequent rinsing are repeated as many times as the number of times. How to control the rinse stroke of the drum washing machine. The method of claim 3, wherein  The set rinsing frequency of the rinse stroke control method of the drum washing machine, characterized in that set according to the quantity detected in the quantity detection.

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