KR20240029214A - Control method for an Laundry Treating Apparatus - Google Patents

Abstract

The present invention relates to a control method for a clothing treatment device, comprising: an outer tank in which washing water is stored; an inner tank rotatably provided in the outer tank into which laundry is put; a pulsator rotatably provided in a lower portion of the inner tank; A driving unit that drives the inner tank and the pulsator, a driving detection unit that detects the number of rotations of the driving unit, a water supply unit that supplies washing water to the inner tank and the outer tank, and a water level that detects the water level of the washing water supplied to the outer tank. A washing machine control method including a water level detection unit, comprising: a laundry quantity detection step of detecting the amount of dry laundry of the laundry placed in the inner tank and setting a temporary water supply amount; and supplying water to the laundry at least twice or more with an amount less than the temporary water supply amount. Implemented, the foam quality of the laundry is determined by detecting a change in the water level of the water level sensor or a change in the rotation speed of the squirt sensor according to the water supply at least two times, and a foam quality determination step of varying the set water supply amount and the set washing process according to the foam quality. and a washing additional water supply step of supplying water at a set water supply amount according to the amount of dry cloth and the quality of the fabric, and a washing step and a rinse step according to the set water supply amount and the set washing process.

Description

{Control method for an Laundry Treatment Apparatus}

The present invention relates to a control method of a clothing treatment device, and more specifically, to a control method of a clothing treatment device that can determine the quality of laundry during a washing cycle and perform a washing cycle according to the quality.

Generally, a washing machine is a device that processes laundry through various operations such as washing, dehydrating, and/or drying. A washing machine includes a tub that contains water, and a drum rotatably provided within the tub, and a plurality of holes through which water passes are formed in the drum.

In a washing machine, when laundry such as clothing or bedding is placed in the drum and the user selects a desired course using the control panel, a preset algorithm is executed in response to the selected course, and the washing machine performs the following functions: supply/drain, wash, rinse, and spin. etc. are carried out.

The washing operation is usually divided into a washing cycle, a rinsing cycle, and a dehydration cycle. The progress of this administration can be confirmed through the display provided on the control panel.

The washing process supplies detergent along with water into the drum and removes contaminants on the cloth using the chemical action of the detergent and the physical action of the rotation of the pulsator and/or drum.

The rinsing cycle is to supply clean water in which detergent is not dissolved into the drum to rinse the fabric. In particular, the detergent absorbed into the fabric during the washing cycle is removed. During the rinsing cycle, fabric softener is supplied along with water.

In the dehydration process, after the rinsing process is completed, the drum is rotated at high speed to dehydrate the cloth. Typically, when the spin-drying cycle is completed, all operations of the washing machine are terminated, but in the case of a washing machine with a dryer function, a drying cycle may be added after the spin-drying cycle.

The washing operation of the washing machine is set according to the amount of laundry loaded into the drum. For example, the water level, washing intensity, draining time, spin-drying time, etc. are set according to the weight of laundry.

On the other hand, when the types of laundry are roughly divided into two categories according to the type of fiber, they can be divided into natural fibers and synthetic fibers, and more specifically, they can be divided into more types of fibers.

Here, one of the factors that distinguishes natural fibers from synthetic fibers is the process moisture rate, which indicates the degree to which moisture is absorbed into the fiber. Process moisture rate is the degree to which clothing contains moisture and can represent the general characteristics of the fiber.

In other words, natural fibers generally have the characteristic of retaining a lot of water depending on the weaving method, and have a higher water absorption rate than synthetic fibers, resulting in differences in weight and differences in washing, rinsing, and dehydration.

However, washing performance varies depending on not only the amount of laundry, but also the material of the fabric. Therefore, if only the amount of laundry is considered without considering the process moisture rate when setting the washing operation, there is a problem that sufficient washing performance cannot be expected.

In other words, in the case of general washing machines, the method of determining the weight (load) of laundry is commonly used, and the level of wash water according to the weight is determined by determining how much clothing the user is putting in and whether the loaded laundry is wet clothing. Set to do laundry.

Therefore, in the case of the control method according to the prior art, washing is performed using a standardized washing cycle according to the weight of the laundry without knowing the type of laundry. Therefore, if washing is performed in a state that does not reflect the characteristics of the laundry, there is a problem that the laundry is damaged or full washing performance is not achieved.

Meanwhile, in Korea Publication No. 10-2015-0141803 (title of the invention: control method for a washing machine, publication date: December 21, 2015, hereinafter referred to as 'prior art'), a control method for detecting foam in laundry is disclosed. It is posted.

A control method of a washing machine according to the prior art includes an outer tub 160 and an inner tub 150 rotatably provided within the outer tub to accommodate laundry, in which the amount of laundry is detected while the laundry is not submerged in water. Step (S1); A step (S2) of supplying water between the outer tank 160 and the inner tank 150 within the range where the bag is not wet with water; A step (S3) of discharging water from the outer tank 160 into the circulation passage 29 and injecting water back into the inner tank 150 through the circulation passage 29 to wet the cloth (S3); A step (S5) of discharging the water that has not been absorbed into the bag and collected back into the outer tank 160 into the circulation passage 29 so that the inside of the outer tank 160 is at an empty water level and detecting the flow rate (S5); And based on the flow rate detected in the step of detecting the flow rate, the actual amount of circulating water discharged into the circulation passage 29 is obtained until the water level in the outer tank 160 reaches the empty water level, and in the step of detecting the actual amount of circulating water and the amount of laundry, A step (S6) is posted to determine the foam quality based on the preset expected circulating water volume based on the detected foam amount.

In the case of the washing machine control method according to the prior art, a water level detection unit 13 including a pressure sensor that measures the pneumatic pressure acting through the communication pipe 15 to detect the water level in the outer tank 160 and a circulation passage in the washing machine. It includes a flow rate sensor 50 that detects the flow rate transported along (29).

Meanwhile, the control method of a washing machine according to the prior art detects the content of laundry by measuring the amount of water transported along the circulation passage 29 based on the flow rate measured by the flow rate sensor 50.

In the case of the washing machine control method according to the prior art, a separate flow sensor 50 such as a flow meter must be provided to measure the amount of water moving through the circulation passage 29, which requires additional cost. There is a problem.

In addition, in the case of the control method of the washing machine according to the prior art, after the laundry absorbs the water after the washing water is supplied, the unabsorbed washing water is circulated through the circulation passage 29, and then the flow rate of the circulating water is detected. There is a problem that it takes a considerable amount of time to detect the flow rate.

The present invention was developed to solve the above problems, and its purpose is to provide a control method for a laundry treatment device that can determine the quality of laundry put into the drum using information on the water level supplied to the laundry treatment device. .

In addition, the present invention was developed to solve the above problems, by supplying and stirring the laundry treatment device at least twice, and using the difference in the amount of dry laundry and the amount of water level change after each water supply to remove the foam of the laundry. The purpose is to provide a control method for a clothing processing device that can be judged.

In addition, the present invention was developed to solve the above problems, and is a clothing processing device that can determine the foam quality of laundry put into a drum using the rotation speed and acceleration time of the driving part that drives the pulsator of the clothing processing device. The purpose is to provide a control method.

In addition, the present invention was developed to solve the above problems, by supplying water and stirring the clothes treatment device at least twice and using the difference in the amount of dry cloth and the rotation speed and acceleration time of the driving part during each stirring. The purpose is to provide a control method for a clothing treatment device that can determine the quality of laundry.

Meanwhile, the objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, a control method of a clothes treatment apparatus according to an embodiment of the present invention includes an outer tank in which washing water is stored, an inner tank rotatably provided in the outer tank and into which laundry is put, and a rotatable bottom of the inner tank. A pulsator that is possibly provided, a drive unit that drives the inner tank and the pulsator, a drive detection unit that detects the rotation speed of the drive unit, a water supply unit that supplies washing water to the inner tank and the outer tank, and the outer tank. It includes a control method for a washing machine that includes a water level detection unit that detects the water level of supplied washing water.

Here, the control method of the washing machine includes a laundry amount detection step of detecting the amount of dry laundry of the laundry put into the inner tank and setting a temporary water supply amount, and supplying water to the laundry at least twice or more with an amount less than the temporary water supply amount, and the 2 A foam quality determination step of determining the foam quality of the laundry by detecting a change in the water level of the water level sensor or a change in the rotation speed of the squirt sensor according to water supply more than once, and varying the set water supply amount and set washing process according to the foam quality, and the dry laundry amount and a washing additional water supply step of supplying a set water supply amount according to the foam quality, and a washing step and a rinsing step according to the set water supply amount and the set washing process.

Here, the foam quality determination step includes: a first water supply step of supplying a certain amount of washing water to the inner tank after the laundry weight detection step; A stirring step of agitating the laundry on which the wetting process has been performed; A first water level information acquisition step of measuring a change in the water level of the outer tank while rotating the inner tank; A second water supply step of additionally supplying a certain amount of washing water to the inner tank; a second inner tank stirring step of rotating the inner tank so that the supplied wash water is absorbed into the laundry; A second water level information acquisition step of measuring a change in the water level of the outer tank while rotating the inner tank; It is preferable to include a foam quality determination step of determining the foam quality of the laundry by comparing the water level detected in the first water level information acquisition step and the water level detected in the second water level information acquisition step.

Meanwhile, it is preferable to further include a washing condition setting step of varying the settings of the washing step, rinsing step, and dehydration step according to the foam material determined in the cell quality determination step.

In addition, the clothes treatment device is provided with a circulation passage and a circulation pump to circulate the washing water supplied to the outer tank, and in the first water supply stage or the second water supply stage, the laundry treatment device is provided with a circulation passage and a circulation pump to circulate the washing water supplied to the outer tank. It is preferable that the supplied washing water is circulated and supplied.

Meanwhile, the circulation passage is provided with a spray nozzle that sprays wash water into the inner tank, and it is preferable to spray wash water directly onto the laundry in the inner tank in the first or second water supply stage.

In addition, it is preferable that the first water supply step or the second water supply step rotates the inner tank or the pulsator at a constant speed.

According to claim 2, the first inner tank stirring step or the second inner tank stirring step is preferably performed while the first water supply step or the second inner tank stirring step is in progress.

Here, the first water level information acquisition step preferably measures the normal water level, maximum water level, and water level change of the outer tank when the inner tank is rotated for a certain time and a certain speed.

Specifically, the first water level government acquisition step detects the normal water level of the outer tank when water supply in the first water supply step is completed, detects the maximum water level of the outer tank according to the rotation of the inner tank, and When rotation is stopped, it is desirable to measure the water level change time from the maximum water level to the normal water level.

Here, the second water level information acquisition step preferably measures the normal water level, maximum water level, and water level change of the outer tank when the inner tank is rotated for a certain time and a certain speed after the second water supply step.

Specifically, the second water level government acquisition step detects the normal water level of the outer tank when water supply in the second water supply step is completed, detects the maximum water level of the outer tank according to the rotation of the inner tank, and When rotation is stopped, it is desirable to measure the water level change time from the maximum water level to the normal water level.

Meanwhile, the foam quality determination step preferably determines the foam quality of the laundry put into the inner tank based on the normal water level, maximum water level, and water level change amount of the outer tank acquired in the first water level information acquisition step and the second water level information acquisition step. do.

Alternatively, the foam quality determination step may include a first water supply step of supplying a certain amount of washing water to the inner tub after the laundry weight detection step; A stirring step of agitating the laundry on which the wetting process has been performed; A first water level information acquisition step of measuring a change in rotation information of the driving unit while rotating the pulsator; A second water supply step of additionally supplying a certain amount of washing water to the inner tank; a second inner tank stirring step of agitating the laundry so that the supplied wash water is absorbed into the laundry; A second water level information acquisition step of measuring a change in rotation information of the driving unit while rotating the pulsator; It is preferable to include a foam quality determination step of determining the foam quality of the laundry by comparing the rotation information detected in the first water level information acquisition step and the rotation information detected in the second water level information acquisition step.

Here, it is preferable to further include a washing condition setting step of varying the settings of the washing step, rinsing step, and dehydration step according to the foam quality determined in the foam material determination step.

Meanwhile, the clothing treatment device is provided with a circulation passage and a circulation pump to circulate the washing water supplied to the outer tank, and in the first water supply stage or the second water supply stage, the laundry treatment device circulates the washing water supplied to the outer tank into the outer tank by the circulation passage and the circulation pump. It is preferable that the supplied washing water is circulated and supplied.

In addition, the circulation passage is provided with a spray nozzle that sprays wash water into the inner tank, and it is preferable to spray wash water directly onto the laundry in the inner tank in the first or second water supply stage.

Here, the first water supply step or the second water supply step is preferably performed by rotating the inner tank or pulsator at a constant speed.

In addition, the first inner tank stirring step or the second inner tank stirring step is preferably performed while the first water supply step or the second water supply step is in progress.

Here, the first rotation speed information acquisition step preferably measures an acceleration time in which the driving unit accelerates to a set rotation speed when the driving unit rotates the pulsator for a certain time and a constant speed.

In addition, the second rotation speed information acquisition step is to measure the acceleration time in which the driving unit accelerates to the set rotation speed when the driving unit rotates the pulsator for a certain time and a constant speed after the second speed supply step. do.

Meanwhile, the foam determination step is based on the acceleration time in which the driving unit accelerates to the set rotation speed and the set rotation speed acquired in the first rotation speed information acquisition step and the second rotation speed information acquisition step. It is desirable to determine the type of pore.

According to the control method of the laundry treatment device according to the present invention, it is possible to determine the quality of laundry put into the drum using information on the water level supplied to the laundry treatment device.

In addition, according to the control method of the laundry treatment device according to the present invention, the laundry treatment device is supplied with water and agitated at least twice, and the quality of the laundry is determined using the difference in the amount of dry laundry and the amount of water level change after each water supply. There is a possible effect.

In addition, according to the control method of the laundry treatment apparatus according to the present invention, there is an effect of determining the foam quality of the laundry put into the drum using the rotation speed and acceleration time of the driving part that drives the pulsator of the clothes treatment apparatus.

In addition, according to the control method of the laundry treatment device according to the present invention, the laundry treatment device is supplied with water and agitated at least twice, and the difference in the amount of dry laundry and the rotation speed and acceleration time of the driving unit during each agitation is used to control the laundry. It has the effect of determining the type of fossa.

Meanwhile, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a simplified diagram showing a clothing treatment device according to an embodiment of the present invention.
Figure 2 is a simplified diagram showing the main parts of a clothing treatment device according to an example of the present invention.
Figure 3 is a configuration diagram showing the configuration of a clothing treatment device according to an embodiment of the present invention.
Figure 4 is a flowchart showing a general control process of a clothing treatment device according to an embodiment of the present invention.
Figure 5 is a flowchart showing foam detection using water level information in a clothing treatment device according to an embodiment of the present invention.
Figure 6 is a graph showing the change in inner tank rotation speed in foam detection using water level information in a clothing treatment device according to an embodiment of the present invention.
Figure 7 is a flowchart showing foam detection using inner tank rotation speed information of a laundry treatment device according to another embodiment of the present invention.
Figure 8 is a graph showing the change in inner tank rotation speed in foam detection using inner tank rotation speed information in a clothing treatment device according to another embodiment of the present invention.

Hereinafter, a clothing treatment device and a control method of the clothing treatment device according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

In explaining the present invention, the names of each defined component are defined in consideration of their function in the present invention. Therefore, it should not be understood as limiting the technical components of the present invention. Additionally, each name defined for each component may be called a different name in the art.

Accordingly, the present invention is not limited to the examples below, and various modifications and variations can be made from these descriptions by those skilled in the art to which the present invention pertains, and such modifications and variations are within the scope of the present invention.

First, a clothing treatment device according to an embodiment of the present invention will be described with reference to the attached drawings.

Figure 1 is a simplified diagram showing a clothing processing device according to an embodiment of the present invention, Figure 2 is a simplified diagram showing main parts of a clothing processing device according to an example of the present invention, and Figure 3 is an embodiment of the present invention. This is a diagram showing the configuration of a clothing processing device according to .

As shown in Figures 1 to 3, the laundry treatment apparatus according to the present invention includes a cabinet 110 with an open top, and a cabinet cover ( 112) and a door 113 that opens and closes the laundry entrance. The cabinet cover 112 may be provided with a control panel 115 that receives commands from the user regarding the overall operation of the clothing treatment device 100.

Inside the cabinet 110, an outer tub 130 containing water and an inner tub 140 rotatably provided within the outer tub 130 and containing laundry or laundry are disposed. A plurality of water holes (not shown) are formed in the inner tank 140 to allow water to circulate between the outer tank 130 and the inner tank 140. An outer shell cover 132 with an open central portion may be disposed on the upper part of the outer shell 130 to allow the bag to enter and exit.

The outer tank 130 is suspended inside the cabinet 110 by a support member 134. One end of the support member 134 is connected to the top cover 114, and the other end is connected to the outer tank 130 by a suspension 136. Vibration of the outer tank 130 caused when the inner tank 140 rotates is cushioned by the suspension 136.

A pulsator 142 that forms a water flow is provided at the bottom of the inner tank 140, and a drive unit 144 that generates a rotational force to rotate the inner tank 140 and/or the pulsator 142 is provided on the lower side of the outer tank 130. ) is placed.

The driving unit 144 may include a motor including a stator 144b on which a coil is wound and a rotor 144a that is rotated by electromagnetic force generated between the coil and the stator 144b. Additionally, the driving unit 144 may include a driving detection unit 145 that detects the driving of the motor.

Additionally, the driving unit 144 may be equipped with a Hall sensor 144c that detects the position of the rotor 144a. The drive detection unit 145 can detect the rotational speed or position of the drive unit 144 based on the output signal of the Hall sensor 144c.

The rotation shaft 143 of the driving unit 144 penetrates the outer tub 130 and selectively rotates the inner tub 140 and the pulsator 142. A clutch (not shown) may be provided to transmit the rotational force of the rotating shaft 143 to the inner tank 140 and/or the pulsator 142, and the inner tank 140 and the pulsator 142 are operated together according to the operation of the clutch. Alternatively, only the pulsator 142 may be rotated.

The water supply unit 150 may supply water between the outer tank 130 and the inner tank 140. The water supply unit 150 includes a water supply valve 153 that controls the water supply passage 152 through which water supplied from an external water source flows, a detergent box 160 and a detergent box housing 162 provided on the water supply passage 152. ) may include. A distribution hole 164 may be formed in the detergent box housing 162 to distribute the water flowing in from the water supply passage 152 to the detergent box 160.

The detergent box housing 162 may be placed on the cabinet cover 112. The detergent box 160 can accommodate detergent and can be retractably stored in the detergent box housing 162.

An opening 166 may be formed in the detergent box housing 162. Depending on the embodiment, a water supply port 133 through which water discharged from the water supply unit 150 passes may be formed in the outer tank cover 132. When water is supplied, water passing through the opening 166 may flow between the inner tank 140 and the outer tank 130 through the water supply port 133.

A circulation pump 176 may be provided to pump water discharged from the outer tank 130 along the circulation passage 178. The circulation passage 178 may be provided with a spray nozzle 179. In this case, when the circulation pump 176 operates, water is sprayed into the inner tank 140 through the spray nozzle 179. A valve (not shown) controlling the circulation passage 178 may be further provided.

The drain unit 170 can drain the wash water that has been washed in the outer tank or circulate the wash water into the outer tank to increase the washing and rinsing effects during washing or rinsing. The drain unit 170 may be provided with a drain pump 172 for draining water from the outer tank 130.

Here, the drain pump 172 may be provided on the drain passage 174 in communication with the outer tank 130. In this embodiment, a circulation pump 176 and a drainage pump 172 are each provided, but differently, circulation of water through the circulation passage 178 and drainage through the drainage passage 174 may be selectively performed through a single pump. there is.

The clothing treatment device 100 may include a water level detection unit 137 that detects the water level in the outer tank 130. A communication pipe 138 connected to the outer tank 130 may be provided. The water level detection unit 137 may include a pressure sensor that measures pneumatic pressure acting through the communication pipe 138.

Here, since the pressure sensed through the pressure sensor varies depending on the water level in the outer tank 130, the water level detection unit 137 can determine the water level in the outer tank 130 based on the pressure detected by the pressure sensor. . However, this configuration is only limited to one embodiment, and the water level detection unit 137 may be configured in various known forms.

The laundry amount detection unit 139 detects the amount of laundry put into the inner tank 140. The laundry amount detection unit 139 uses the principle that the inertia of the inner bath 140 varies depending on the amount of laundry put in, and is an indicator (e.g., The amount of laundry can be obtained based on the change in driving current and change in driving speed.

Here, the laundry weight detection unit 139 uses a Hall sensor provided in the driving unit 144 when the inner tub 140 is rotated by the driving unit 144 or when the inner tub 140 rotates by inertia according to the weight of the laundry. The number of rotations can be detected. However, the laundry weight detection unit 139 is not limited to this and may be composed of various laundry weight sensing means known in the washing machine technology field.

Accordingly, the control process of the clothing treatment device according to an embodiment of the present invention will be described in detail through examples. Each element mentioned below should be understood with reference to the above description and drawings.

First, the general operating process of the laundry treatment device of the present invention will be briefly described with reference to FIG. 4.

Figure 4 is a flowchart showing a general control process of a clothing treatment device according to an embodiment of the present invention.

As shown in FIG. 4, the laundry treatment device 100 according to an embodiment of the present invention performs a laundry weight detection step (step S110) of detecting the dry laundry amount of laundry put into the inner tub 140 in order to set a temporary water supply amount of washing water. ), and a foam quality determination step (step S120) for detecting the foam quality of the laundry put into the inner tank 140 according to the amount of dry laundry and moisture content of the laundry, and washing water into the inner tank 140 according to the set water supply amount set according to the laundry weight and foam quality. A washing additional water supply step (step S130) of additional water supply, a washing step (step S140) of washing contaminated laundry by adding detergent, etc., and the rotation of the inner tank 140 and the pulsator 142, and a washing step (step S130) of additional water supply. In the rinse water supply step (step S150), in which rinse water is supplied to remove detergent, etc. from the laundry for which S140) has been completed, contaminants, detergent, etc. remaining in the inner tank 140 are removed by the rotation of the inner tank 140 and the pulsator 142. It may include a rinsing step (step S160) of removing and draining and a dehydration step (step S170) of removing moisture from the laundry according to a set dehydration time.

The laundry weight detection step (step S110) can be largely divided into a method of detecting the laundry weight using the size of the inertia of the motor and a method of detecting the laundry weight using an electrode sensor.

Here, the method of using the size of inertia is that the larger the amount of fabric in the inner tank 140, the greater the inertia. The larger the inertia, the more power or current is required to accelerate or decelerate the inner tank 140. Take advantage of the feature that increases the time required.

As another example, the amount of current required to accelerate the inner tank 140 at a constant acceleration can be measured. At this time, the amount of current can be measured for a certain period of time. When the amount of laundry in the inner tank 140 is large, a large amount of power is consumed to accelerate the inner tank 140 at a constant acceleration, and when the amount of laundry is small, the amount of power consumed is small.

Since this laundry weight detection step (step S110) can be implemented in various embodiments, detailed description will be omitted.

The foam detection step (S120) is to classify the foam of the laundry according to the moisture content of the laundry put into the inner tank 140. In general, in the case of a clothes treatment device, only the dry amount of laundry is judged and the washing process is performed by specifying the level of wash water according to the weight of the laundry put into the inner tank.

Here, if the washing process is performed by measuring only the amount of laundry, it is impossible to determine the fabric quality, and the washing cycle cannot be performed according to the fabric quality. Therefore, the uniform washing cycle results in poor washing performance in terms of washing effect, rinsing effect, and dehydration effect, and damage to the laundry may occur because the washing cycle cannot be performed according to the foam type.

Meanwhile, in the case of laundry, the fabric can be largely divided into natural fibers and synthetic fibers depending on the moisture content. Natural fibers generally have the characteristic of retaining a lot of moisture, and their moisture absorption rate is higher than that of synthetic fibers, so they are used during washing. There are differences in the settings of the washing cycle, rinsing cycle, and spin-drying cycle.

Therefore, it is necessary to determine the foam quality of the laundry so that a washing cycle, a rinsing cycle, and a spin-drying cycle can be performed tailored to the characteristics of the laundry placed in the inner tank 140. To this end, in the present invention, the laundry quality can be determined by determining the laundry weight detected in the laundry weight detection step (step S110) and the moisture content of the laundry put in when watering the laundry according to the laundry weight.

Here, in order to determine the moisture content, the water level change of the water level detection unit 137 according to the rotation of the inner tank 140 during water supply or the rotation speed change of the drive detection unit 145 according to the rotation of the pulsator can be used. This pore detection step (S120) will be described in detail after completing the explanation of the general washing process of the clothes treatment device.

In the additional washing water supply step (step S130), washing water is supplied from an external water supply source (not shown) to the outer tank 130 through the water supply valve 153 and the water supply passage 152 under the control of the water supply valve 153.

Here, in the additional washing water supply step (step S130), excluding the washing water supplied in the pores detection step (S120), which will be described later, a set water supply amount according to the pores set in the pores detection step (S120) may be supplied.

The washing step (step S140) is an process that removes contaminants from contaminated laundry using wash water. Specifically, the washing step (step S140) may include a washing cycle and a drain cycle.

Here, the washing cycle is a step of removing contaminants from laundry by rotating the inner tank 140 or the pulsator 142. During the washing cycle, the inner tank 140 or the pulsator 142 may separate contaminants from the laundry while rotating forward or backward.

In addition, during the washing process, detergent, etc. can be supplied into the inner tank 140 through the detergent box 160, and the detergent functions to separate contaminants from the laundry.

Meanwhile, when the washing cycle is completed, a drainage cycle is performed to discharge the washing water to the outside of the clothing treatment device 100. In the drain stroke, the washing water in the outer tank 130 can be discharged to the outside through the drain passage 174 using the drain pump 172.

In the rinse water supply step (step S150), washing water is supplied from an external water supply source (not shown) to the outer tank 130 through the water supply valve 153 and the water supply passage 152 under the control of the water supply valve 153.

The rinsing step (step S160) is an operation that removes detergent and contaminants from laundry after the washing step (step S140) has been completed. Specifically, the rinsing step (step S160) may include a rinsing cycle and a draining cycle.

Here, the rinsing cycle rotates the inner tub 140 and the pulsator 142 to remove detergent and contaminants from laundry. In the rinsing cycle, the inner tub 140 can separate detergent and contaminants from the laundry while rotating forward or backward.

In addition, in the rinsing step (step S160), softener, etc. can be supplied into the outer tank 130 through the detergent box 160, and when the rinsing cycle is completed, a drain stroke in which the washing water is discharged to the outside of the clothing treatment device 100. This is done. In the drain stroke, the washing water in the outer tank 130 can be discharged to the outside using the drain pump 172 and the drain passage 174.

Here, the above-mentioned washing additional water supply step (step S130), washing step (step S140), and rinsing step (step S160) may be performed repeatedly at least once or more depending on the weight or texture of the laundry and the degree of contamination of the laundry.

The dehydration step (step S170) is an operation to remove moisture from laundry. In the dehydration step (step S170), the inner tank 140 is rotated at high speed to remove moisture from the laundry using centrifugal force.

Here, in the dehydration step (step S170), the rotation speed and rotation time of the inner tub 140 that performs the dehydration step (step S170) can be set according to the amount and quality of the laundry.

Hereinafter, the foam quality determination step (step S120) for determining the foam quality of the laundry put into the inner tank will be described in detail with reference to the attached drawings.

In the present invention, the foam quality determination step (step S120) determines the foam quality according to the moisture content of the laundry put into the inner tank.

Specifically, the foam quality of the laundry can be determined by detecting a change in the water level that changes as the laundry absorbs the washing water, or it can be determined using the change in the rotation speed of the driving unit that changes as the laundry absorbs the washing water.

First, using Figures 5 and 6, the process of determining the foam quality of laundry by detecting changes in water level as the laundry absorbs wash water will be described.

Figure 5 is a flowchart showing foam detection using water level information in a clothing processing device according to an embodiment of the present invention, and Figure 6 is a flow chart showing foam detection using water level information in a clothing processing device according to an embodiment of the present invention. This is a graph showing the change in rotation speed.

As shown in Figures 5 and 6, the foam quality determination step (step S120) includes a first water supply step (step S121a) of supplying a certain amount of washing water to the laundry put into the inner tub 140, and a first water supply step (step S121a). ), a first inner tank agitation step (step S122a) of rotating the inner tank 140 so that the wash water supplied from ) is absorbed into the laundry, and a first water level that detects the water level remaining in the outer tank 130 after the wash water is absorbed into the laundry. An information acquisition step (step S123a), a second water supply step (step S124a) in which a certain amount of washing water is additionally supplied to the inner tank 140, and an inner tank so that the wash water supplied in the second water supply step (step S124a) is absorbed into the laundry. A second inner tank agitation step (step S125a) of rotating the 140, and a second water level information acquisition step (step S125a) of detecting the level of washing water remaining in the outer tank 130 after the second inner tank agitation step (step S125a). S126a), and a comparison step of comparing the weight detected in the laundry amount detection step (step S110), the water level detected in the first water level information acquisition step (step S123a), and the water level detected in the second water level information acquisition step (step S126a). (step S127a), a foam quality determination step (step S128a) for determining the foam quality according to the results of the comparison step (step S127a), a washing step (step S140), a rinsing step (step S160), and a dehydration step (step S140) according to the determined foam quality. It includes a washing condition setting step (step S129a) for changing the settings of step S170).

In the first water supply step (step S121a), washing water is supplied to measure the washing water moisture absorption rate of laundry, and the washing water supplied from an external water supply source (not shown) is controlled by the water supply valve 153 through the water supply passage 152. Washing water is supplied to the outer tank 130 through. Here, the washing water supplied in the first water supply step (step S121a) is detected by the water level sensor 137.

Meanwhile, the wash water supplied in the first water supply step (step S121a) is less than the amount of wash water set according to the laundry weight measured in the laundry weight detection step (step S110).

In addition, in the first water supply step (step S121a), after a certain amount of washing water is supplied to uniformly saturate the laundry put into the inner tub 140, the circulation pump 176 operates to spray the circulation passage 178. It can be sprayed directly onto the laundry in the inner tub 140 through the nozzle 179.

In the first inner tank agitation step (step S122a), the inner tub 140 may be rotated forward and backward at a constant rotation speed for a certain period of time so that the wash water supplied in the first water supply step (step S121a) can be evenly absorbed into the laundry.

That is, the washing water supplied in the first water supply step (step S121a) is supplied into the inner tank 140 through the water supply unit 150 or the spray nozzle 179. At this time, in the case of the water supply unit 150 and the spray nozzle 179, washing water is sprayed from a fixed position, so washing water can be supplied only to specific areas of the laundry loaded in the inner tub 140, and uniform wetting of the laundry is achieved. It's difficult to proceed.

Accordingly, by rotating the inner tub 140, the laundry loaded in the inner tub can be evenly soaked even if the washing water supplied from the water supply unit 150 or the spray nozzle 179 is supplied to a specific area.

Additionally, the pulsator 142 can be rotated along with the rotation of the inner tub 140 to increase the wetting effect of the laundry. That is, in the case of rotation of the inner tub 140, the horizontal position of the laundry can be changed to increase the wetting effect, and in the case of rotation of the pulsator 142, the laundry centering effect can be increased by agitating the laundry in the inner tub 140 to change the vertical position. The effect can be increased. Here, in the case of rotation of the pulsator 142, it can be rotated in the forward and reverse direction at a constant rotation speed for a certain period of time, similar to the rotation of the inner tank 140.

Meanwhile, the above-described first inner tank stirring step (step S122a) may be performed in the same manner as the first water supply step (step S121a). That is, while the washing water is supplied in the first water supply step (step S121a), the first inner tank stirring step (step S122a) may be performed simultaneously.

In the first water level information acquisition step (step S123a), the inner tank 140 is rotated at a certain time and speed, and the water level information of the outer tank 130 is acquired from the water level detection unit 137. That is, in the first water level information acquisition step (step S123a), as the inner tank 140 is rotated, the wash water stored in the outer tank 130 is rotated along the inner surface of the outer tank 130 by the centrifugal force of the inner tank 140, resulting in a change in water level. is generated, and the water level detection unit 137 detects the water level information of the outer tank 130.

Here, the water level information of the outer tank 130 detected by the water level detection unit 137 can detect the normal water level, maximum water level, water level change amount, and water level change time. That is, the water level detector 137 detects the normal water level when water supply is completed in the first water supply step (step S121a), the maximum water level when centrifugal force is maximized according to the rotation of the inner tank 140, and the rotation of the inner tank 140. It is possible to detect the water level change amount while the water is stopped and changing from the normal water level to the maximum water level, and the water level change time when the water level changes from the maximum water level to the normal water level again.

Specifically, as the inner tank 140 rotates in the first water level information acquisition step (step S123a), a difference in the moment of inertia occurs depending on the mass of the laundry that has absorbed the washing water, and the difference in the moment of inertia occurs in the inner tank 140 ), a time change occurs in the inner tank rotation to reach the set rotation speed.

In addition, in the case of laundry that has absorbed washing water, the amount of moisture absorption changes depending on the foam, and the change in moisture absorption causes a difference in the normal water level depending on the amount of washing water supplied to the outer tank 130, and centrifugal force according to the rotation of the inner tank 140. A change occurs in the amount of water absorbed in the laundry and discharged.

This change in moisture absorption due to the foam results in a water level change according to the water supply amount of the outer tank 130 and a water level change according to the rotation of the inner tank 140, and a change in the water level of the outer tank 130 and the normal water level and the highest water level. The change time of water level between water levels varies.

Therefore, in the first water level information acquisition step (step S123a), the water level detection unit 137 can acquire information about the normal water level, maximum water level, water level change amount, and water level change time of the outer tank 130.

The second water supply step (step S124a) supplies additional washing water to compare the normal water level, maximum water level, water level change amount, and water level change time acquired in the first water level information acquisition step (step S123a), and the water supply valve 153 Under control, washing water supplied from an external water supply source (not shown) is supplied to the outer tank 130 through the water supply passage 152. Here, the washing water supplied in the second water supply step (step S124a) is detected by the water level sensor 137.

Meanwhile, the amount of washing water supplied in the second water supply step (step S124a) may be equal to or less than the amount of washing water supplied in the first water supply step (step S121a). In addition, the wash water supplied in the second water supply step (step S124a) is the sum of the amount of wash water supplied in the first water supply step (step S121a) and the amount of wash water supplied in the second water supply step (step S124a). The amount of washing water set according to the weight measured in step S110) is less than that set.

In addition, in the second water supply step (step S124a), after a certain amount of washing water is supplied to uniformly saturate the laundry put into the inner tub 140, the circulation pump 176 operates to spray the circulation passage 178. It can be sprayed directly onto the laundry in the inner tub 140 through the nozzle 179.

In the second inner tank agitation step (step S125a), the inner tub 140 may be rotated in the forward and reverse directions at a constant rotation speed for a certain period of time so that the wash water supplied in the second water supply step (step S124a) can be evenly absorbed into the laundry.

That is, the washing water supplied in the second water supply step (step S125a) is supplied into the inner tank 140 through the water supply unit 150 or the spray nozzle 179. At this time, in the case of the water supply unit 150 and the spray nozzle 179, the washing water is sprayed from a fixed position, so the washing water can be supplied only to specific areas of the laundry loaded in the inner tub 140, and the laundry is evenly soaked. It's difficult to proceed.

Accordingly, by rotating the inner tub 140, the laundry loaded in the inner tub can be evenly soaked even if the washing water supplied from the water supply unit 150 or the spray nozzle 179 is supplied to a specific area.

Additionally, the pulsator 142 can be rotated along with the rotation of the inner tub 140 to increase the wetting effect of the laundry. That is, in the case of rotation of the inner tub 140, the horizontal position of the laundry can be changed to increase the wetting effect, and in the case of rotation of the pulsator 142, the laundry centering effect can be increased by agitating the laundry in the inner tub 140 to change the vertical position. The effect can be increased. Here, in the case of rotation of the pulsator 142, it can be rotated in the forward and reverse direction at a constant rotation speed for a certain period of time, similar to the rotation of the inner tank 140.

Meanwhile, the above-described second inner tank stirring step (step S125a) may be performed in the same manner as the second water supply step (step S124a). That is, while the washing water is supplied in the second water supply step (step S124a), the second inner tank stirring step (step S125a) may be performed simultaneously.

In the second water level information acquisition step (step S126a), the inner tank 140 is rotated at a certain time and speed, and the water level information of the outer tank 130 is acquired from the water level sensor 137. That is, as the inner tank 140 is rotated in the second water level information acquisition step (step S126a), the wash water stored in the outer tank 130 is rotated along the inner surface of the outer tank 130 by the centrifugal force of the inner tank 140, resulting in a change in water level. is generated, and the water level detection unit 137 detects the water level information of the outer tank 130.

Here, the water level information of the outer tank 130 detected by the water level detection unit 137 can detect the normal water level, maximum water level, water level change amount, and water level change time. That is, the water level sensor 137 detects the normal water level when water supply is completed in the second water supply step (step S124a), the maximum water level when centrifugal force is maximized according to the rotation of the inner tank 140, and the rotation of the inner tank 140. It is possible to detect the water level change amount while the water is stopped and changing from the normal water level to the maximum water level, and the water level change time when the water level changes from the maximum water level to the normal water level again.

Specifically, as the inner tank 140 rotates in the second water level information acquisition step (step S126a), a difference in the moment of inertia occurs depending on the mass of the laundry that has absorbed the washing water, and the difference in the moment of inertia occurs in the inner tank 140 ), a time change occurs in the inner tank rotation to reach the set rotation speed.

In addition, in the case of laundry that has absorbed washing water, the amount of moisture absorption changes depending on the foam, and the change in moisture absorption causes a difference in the normal water level depending on the amount of washing water supplied to the outer tank 130, and centrifugal force according to the rotation of the inner tank 140. A change occurs in the amount of water absorbed in the laundry and discharged.

This change in moisture absorption due to the foam results in a water level change according to the water supply amount of the outer tank 130 and a water level change according to the rotation of the inner tank 140, and a change in the water level of the outer tank 130 and the normal water level and the highest water level. The change time of water level between water levels varies.

Therefore, in the second water level information acquisition step (step S126a), the water level detection unit 137 can acquire information about the normal water level, maximum water level, water level change amount, and water level change time of the outer tank 130.

The comparison step (step S127a) is the water level change of the outer tank 130 acquired in the first water level information acquisition step (step S123a) and the second water level information acquisition step (step S126a) and the water level change time between the normal water level and the highest water level. Compare.

Here, the information acquired in the first water level information acquisition step (step S123a) is measured based on the weight of the laundry in the non-moistened laundry weight detection step (step S110), and in the second water level information acquisition step (step S126a) The acquired information is measured based on the results of moistening the washing water supplied in the first water supply step (step S121a) while the washing water additionally supplied in the second water supply step (step S124a) is moistened.

The shell determination step (step S128a) is the change in water level of the outer tank 130 acquired in the first water level information acquisition step (step S123a) and the second water level information acquisition step (step S126a) and the change in water level between the normal water level and the highest water level. Depending on the time, the quality of the laundry put into the inner tank is determined.

The washing condition setting step (step S129a) changes the settings of the washing cycle, rinsing cycle, and spin-drying cycle according to the laundry weight detected in the laundry weight detection step (step S110) and the fabric quality determined in the fabric quality determination step (step S128a). Specifically, various washing conditions can be set, such as washing time, driving time/driving pattern of the inner tank 140 or pulsator 142, rinsing or spin-drying time, spin-drying speed, and additional water supply amount.

Hereinafter, using Figures 7 and 8, a process for determining the foam quality of laundry by detecting changes in the rotational speed of the driving unit that changes as the laundry absorbs wash water will be described.

Figure 7 is a flowchart showing foam texture detection using inner tank rotation speed information in a laundry treatment device according to another embodiment of the present invention, and Figure 8 is a flow chart showing foam texture detection using inner tank rotation speed information in a laundry treatment device according to another embodiment of the present invention. This is a graph showing the change in internal rotation number on textured paper.

As shown in Figures 7 and 8, the foam quality determination step (step S120) includes a first water supply step (step S121b) of supplying a certain amount of washing water to the laundry put into the inner tub 140, and a first water supply step (step S121b). ), a first pulsator agitation step (step S122b) of rotating the pulsator 142 so that the washing water supplied from ) is absorbed into the laundry, and a driving unit 144 that drives the pulsator 142 after the washing water is absorbed into the laundry. A first rotation speed information acquisition step (step S123b) that detects the rotation speed of and the acceleration time to accelerate to the set rotation speed, and a second water supply step (step S124b) of additionally supplying a certain amount of washing water to the inner tank 140. , a second pulsator stirring step (step S125b) of rotating the pulsator 142 so that the washing water supplied in the second water supply step (step S124b) is absorbed into the laundry, and after the second pulsator agitation step (step S125b) The second rotation speed information acquisition step (step S126b) of driving the pulsator 142 to detect the rotation speed of the driving unit 144 and the acceleration time to accelerate to the set rotation speed, and the weight detection step (step S110) Weight, rotation speed/acceleration time of the driving unit 144 detected in the first rotation information acquisition step (step S123b), and rotation speed/acceleration of the driving unit 144 detected in the second rotation information acquisition step (step S126b) A comparison step of comparing time (step S127b), a foam quality determination step (step S128b) of determining the foam quality according to the results of the comparison step (step S127b), a washing step (step S140), and a rinsing step (step S140) according to the determined foam quality. S160), and a washing condition setting step (step S129b) for varying the settings of the dehydration step (step S170).

In the first water supply step (step S121b), washing water is supplied to measure the washing water moisture absorption rate of the laundry, and the washing water supplied from an external water supply source (not shown) is controlled by the water supply valve 153 through the water supply passage 152. Washing water is supplied to the outer tank 130 through. Here, the washing water supplied in the first water supply step (step S121b) is detected by the water level sensor 137.

Meanwhile, the wash water supplied in the first water supply step (step S121b) is less than the amount of wash water set according to the laundry weight measured in the laundry weight detection step (step S110).

In addition, in the first water supply step (step S121b), after a certain amount of washing water is supplied to uniformly saturate the laundry put into the inner tub 140, the circulation pump 176 operates to spray the circulation passage 178. It can be sprayed directly onto the laundry in the inner tub 140 through the nozzle 179.

The first pulsator agitation step (step S122b) may rotate the inner tub 140 in the forward and reverse directions at a constant rotation speed for a certain period of time so that the washing water supplied in the first water supply step (step S121b) can be evenly absorbed into the laundry. .

That is, the washing water supplied in the first water supply step (step S121b) is supplied into the inner tank 140 through the water supply unit 150 or the spray nozzle 179. At this time, in the case of the water supply unit 150 and the spray nozzle 179, washing water is sprayed from a fixed position, so washing water can be supplied only to specific areas of the laundry loaded in the inner tub 140, and uniform wetting of the laundry is achieved. It's difficult to proceed.

Accordingly, by rotating the inner tub 140, the laundry loaded in the inner tub can be evenly soaked even if the washing water supplied from the water supply unit 150 or the spray nozzle 179 is supplied to a specific area.

Additionally, the pulsator 142 can be rotated along with the rotation of the inner tub 140 to increase the wetting effect of the laundry. That is, in the case of rotation of the inner tub 140, the horizontal position of the laundry can be changed to increase the wetting effect, and in the case of rotation of the pulsator 142, the laundry centering effect can be increased by agitating the laundry in the inner tub 140 to change the vertical position. The effect can be increased. Here, in the case of rotation of the pulsator 142, it can be rotated in the forward and reverse direction at a constant rotation speed for a certain period of time, similar to the rotation of the inner tank 140.

Meanwhile, the above-described first pulsator stirring step (step S122b) may be performed in the same manner as the first water supply step (step S121b). That is, while the washing water is supplied in the first water supply step (step S121b), the first pulsator agitation step (step S122b) may be performed simultaneously.

In the first rotation speed information acquisition step (step S123b), the pulsator 142 is accelerated to a certain rotation speed and the acceleration time is acquired. That is, in the first rotation speed information acquisition step (step S123b), as the pulsator 142 rotates, the laundry loaded in the inner tub 140 is agitated, and a load is applied to the drive unit 144 by the laundry moistened with washing water. all.

Here, the time at which the driving unit 144 accelerates to the set rotation speed may vary depending on the load caused by laundry. The drive detection unit 145 detects the set rotation speed of the drive unit 144 that rotates the pulsator 142 and the acceleration time information for reaching the set rotation speed.

Here, the driving information of the driving unit 144 detected by the driving detection unit 145 can detect the rotation speed of the motor and the acceleration time for acceleration to the set rotation speed. In the case of laundry that has absorbed washing water, the amount of moisture absorption changes depending on the foam type, and the change in moisture absorption amount causes a difference in moisture content depending on the foam type of the laundry, and wash water is absorbed until the pulsator (142) is accelerated to the set rotation speed. Depending on the type of gun, the acceleration time changes.

Therefore, in the first rotation speed information acquisition step (step S123b), the drive detection unit 145 detects the laundry that has absorbed the wash water when the water supply is completed in the first water supply step (step S121b) and the laundry has absorbed the wash water. In order to stir, the acceleration time during which the pulsator 142 accelerates to a set rotation speed can be detected.

The second water supply step (step S124b) supplies additional washing water to compare the set rotation speed and acceleration time of the drive unit acquired in the first rotation speed information acquisition step (step S123b), and controls the water supply valve 153. Accordingly, washing water supplied from an external water supply source (not shown) is supplied to the outer tank 130 through the water supply passage 152. Here, the washing water supplied in the second water supply step (step S124b) is detected by the water level sensor 137.

Meanwhile, the amount of washing water supplied in the second water supply step (step S124b) may be equal to or less than the amount of washing water supplied in the first water supply step (step S121b). In addition, the wash water supplied in the second water supply step (step S124b) is the sum of the amount of wash water supplied in the first water supply step (step S121b) and the amount of wash water supplied in the second water supply step (step S124b). The amount of washing water set according to the weight measured in step S110) is less than that set.

In addition, in the second water supply step (step S124b), after a certain amount of washing water is supplied to uniformly saturate the laundry put into the inner tub 140, the circulation pump 176 operates to spray the circulation passage 178. It can be sprayed directly onto the laundry in the inner tub 140 through the nozzle 179.

The second pulsator agitation step (step S125b) may rotate the inner tub 140 in the forward and reverse directions at a constant rotation speed for a certain period of time so that the washing water supplied in the second water supply step (step S124b) can be evenly absorbed into the laundry. .

That is, the washing water supplied in the second water supply step (step S125b) is supplied into the inner tank 140 through the water supply unit 150 or the spray nozzle 179. At this time, in the case of the water supply unit 150 and the spray nozzle 179, washing water is sprayed from a fixed position, so washing water can be supplied only to specific areas of the laundry loaded in the inner tub 140, and uniform wetting of the laundry is achieved. It's difficult to proceed.

Accordingly, by rotating the inner tub 140, the laundry loaded in the inner tub can be evenly soaked even if the washing water supplied from the water supply unit 150 or the spray nozzle 179 is supplied to a specific area.

Additionally, the pulsator 142 can be rotated along with the rotation of the inner tub 140 to increase the wetting effect of the laundry. That is, in the case of rotation of the inner tub 140, the horizontal position of the laundry can be changed to increase the wetting effect, and in the case of rotation of the pulsator 142, the laundry centering effect can be increased by agitating the laundry in the inner tub 140 to change the vertical position. The effect can be increased. Here, in the case of rotation of the pulsator 142, it can be rotated in the forward and reverse direction at a constant rotation speed for a certain period of time, similar to the rotation of the inner tank 140.

Meanwhile, the above-described second pulsator stirring step (step S125b) may be performed in the same manner as the second water supply step (step S124b). That is, while the washing water is supplied in the second water supply step (step S124b), the second pulsator agitation step (step S125b) may be performed simultaneously.

The second rotation speed information acquisition step (step S126b) accelerates the pulsator 142 to a certain rotation speed and acquires the acceleration time. That is, in the second rotation speed information acquisition step (step S123b), as the pulsator 142 rotates, the laundry loaded in the inner tub 140 is agitated, and a load is applied to the drive unit 144 by the laundry moistened with washing water. all.

Here, the time at which the driving unit 144 accelerates to the set rotation speed may vary depending on the load caused by laundry. The drive detection unit 145 detects the set rotation speed of the drive unit 144 that rotates the pulsator 142 and the acceleration time information for reaching the set rotation speed.

Here, the driving information of the driving unit 144 detected by the driving detection unit 145 can detect the rotation speed of the motor and the acceleration time for acceleration to the set rotation speed. In the case of laundry that has absorbed washing water, the amount of moisture absorption changes depending on the foam type, and the change in moisture absorption amount causes a difference in moisture content depending on the foam type of the laundry, and wash water is absorbed until the pulsator (142) is accelerated to the set rotation speed. Depending on the type of gun, the acceleration time changes.

Therefore, in the second rotation speed information acquisition step (step S126b), the drive detection unit 145 detects the laundry that has absorbed the wash water when the water supply is completed in the first water supply step (step S121b) and the laundry has absorbed the wash water. In order to stir, the acceleration time during which the pulsator 142 accelerates to a set rotation speed can be detected.

The comparison step (step S127b) compares the rotation speed of the drive unit 144 acquired in the first rotation speed information acquisition step (step S123b) and the second rotation information acquisition step (step S126b) and the acceleration time to the set rotation speed. Compare.

Here, the information acquired in the first rotation speed information acquisition step (step S123b) is measured based on the weight of the laundry in the non-moistened laundry weight detection step (step S110), and the second rotation information acquisition step (step S126b) ) is measured based on the results of moistening the washing water supplied in the second water supply step (step S124b) while the washing water supplied in the first water supply step (step S121b) is moistened.

The shell determination step (step S128b) is the change in rotation speed of the driving unit 144 acquired in the first rotation speed information acquisition step (step S123b) and the second rotation information acquisition step (step S126b) and the acceleration time to the set rotation speed. According to this, the quality of the laundry put into the inner tank 140 is determined.

The washing conditions setting step (step S129b) changes the settings of the washing cycle, rinsing cycle, and spin-drying cycle according to the laundry weight detected in the laundry weight detection step (step S110) and the fabric quality determined in the fabric quality determination step (step S128b). Specifically, various washing conditions can be set, such as washing time, driving time/driving pattern of the inner tank 140 or pulsator 142, rinsing or spin-drying time, spin-drying speed, and additional water supply amount.

Therefore, the control method of the laundry treatment device according to the present invention as described above can determine the quality of the laundry put into the drum using information on the water level supplied to the laundry treatment device.

In addition, the laundry treatment can be watered and agitated at least twice and the quality of the laundry can be determined using the difference in the amount of dry laundry and the amount of change in water level after each water supply.

In addition, the foam quality of the laundry put into the drum can be determined using the rotation speed and acceleration time of the driving part that drives the pulsator of the laundry treatment device.

In addition, the laundry treatment device can be supplied with water and agitated at least twice, and the foam quality of the laundry can be determined using the amount of dry laundry and the difference in rotation speed and acceleration time of the driving unit during each agitation.

As discussed above, preferred embodiments of the present invention have been described in detail, but those skilled in the art will understand that without departing from the spirit and scope of the present invention as defined in the appended claims, The present invention may be implemented with various modifications. Therefore, changes in future embodiments of the present invention will not depart from the scope of the present invention.

100: Clothing processing device 110: Cabinet
112: cabinet cover 113: door
114: Top cover 115: Control panel
130: Outer tank 132: Outer tank cover
133: water inlet 134: support member
136: Suspension 137 water level detection unit
138: communication pipe 139: weight detection unit
140: Naejo 142: Pulsator
144: driving unit 143: rotation shaft
144a: rotor 144b: stator
144c: Hall sensor 145: Drive detection unit
150: water supply unit 152: water supply channel
153: Water supply valve 160: Detergent box
162: Detergent box housing 164: Distribution hole
166: opening 170: drainage part
172: Drain pump 174: Drain passage
176: circulation pump 178: circulation passage
179: Spray nozzle

Claims (29)

An outer tank in which washing water is stored, an inner tank rotatably provided in the outer tank and into which laundry is put, a pulsator rotatably provided in a lower portion of the inner tank, a driving unit that drives the inner tank and the pulsator, and the driving unit A control method for a washing machine comprising a drive sensor that detects the number of rotations, a water supply unit that supplies wash water to the inner tank and the outer tank, and a water level sensor that detects the level of the wash water supplied to the outer tank,
A laundry quantity detection step of detecting the dry laundry quantity of the laundry put into the inner tank and setting a temporary water supply quantity;
Watering the laundry at least two times or more with an amount less than the temporary water supply amount, detecting a change in the water level of the water level sensor or a change in the rotation speed of the sluice sensor according to the two or more waterings, and determining the quality of the laundry. , a foam quality determination step that varies the set water supply amount and set washing process according to the foam quality,
A washing additional water supply step of supplying water at a set water supply amount according to the dry cloth amount and the foam quality, and
A control method for a clothing treatment device, characterized in that washing and rinsing steps are performed according to the set water supply amount and the set washing process. The method of claim 1, wherein the cell quality determination step is,
A first water supply step of supplying a certain amount of washing water to the inner tank after the laundry weight detection step;
A stirring step of agitating the laundry on which the wetting process has been performed;
A first water level information acquisition step of measuring a change in the water level of the outer tank while rotating the inner tank;
A second water supply step of additionally supplying a certain amount of washing water to the inner tank;
a second inner tank stirring step of rotating the inner tank so that the supplied wash water is absorbed into the laundry;
A second water level information acquisition step of measuring a change in the water level of the outer tank while rotating the inner tank;
A control method for a laundry treatment device, comprising a foam quality determination step of determining the foam quality of the laundry by comparing the water level detected in the first water level information acquisition step and the water level detected in the second water level information acquisition step. The method of claim 2, further comprising a washing condition setting step of varying the settings of the washing step, rinsing step, and dehydration step according to the cell quality determined in the cell quality determination step. According to claim 2, wherein the clothes treatment device is provided with a circulation passage and a circulation pump to circulate the washing water supplied to the outer tank,
A control method for a clothes treatment device, characterized in that the washing water supplied to the outer tank is circulated and supplied by the circulation passage and the circulation pump in the first or second water supply step. The method of claim 4, wherein the circulation passage is provided with a spray nozzle for spraying wash water into the inner tub, and the wash water is sprayed directly onto the laundry in the inner tank in the first water supply step or the second water supply step. A control method for a clothing processing device. The control method of claim 2, wherein the first water supply step or the second water supply step rotates the inner tub at a constant speed. The method of claim 6, wherein the first water supply step or the second water supply step rotates the pulsator at a constant speed. The method of claim 2, wherein the first inner tank stirring step is performed while the first water supply step is in progress. The control method of claim 2, wherein the second inner tank stirring step is performed while the second water supply step is in progress. The control method of claim 2, wherein the first water level information acquisition step measures a change in the water level of the outer tank when the inner tank is rotated for a certain time and at a certain speed. The control method of claim 10, wherein the first water level information acquisition step measures the normal water level, maximum water level, and water level change of the outer tank. The method of claim 11, wherein the first level government acquisition step is
Detecting the normal water level of the external tank when water supply in the first water supply stage is completed,
Detecting the maximum water level of the outer tank according to the rotation of the inner tank,
A control method for a clothing treatment device, characterized in that when the rotation of the inner tank is stopped, the water level change time varying from the maximum water level to the normal water level is measured. The method of claim 12, wherein the second water level information acquisition step measures a change in the water level of the outer tank when the inner tank is rotated for a certain time and at a constant speed after the second water supply step. method. The control method of claim 13, wherein the second water level information acquisition step measures the normal water level, maximum water level, and water level change of the outer tank. The method of claim 14, wherein the second level government acquisition step is
Detecting the normal water level of the outer tank when water supply in the second water supply stage is completed,
Detecting the maximum water level of the outer tank according to the rotation of the inner tank,
A control method for a clothing treatment device, characterized in that when the rotation of the inner tank is stopped, the water level change time varying from the maximum water level to the normal water level is measured. The method of claim 14, wherein the cell type determination step is
Control of a laundry treatment device, characterized in that determining the quality of laundry put into the inner tank based on the normal water level, maximum water level, and water level change of the outer tank acquired in the first water level information acquisition step and the second water level information acquisition step. method. The method of claim 1, wherein the cell quality determination step is,
A first water supply step of supplying a certain amount of washing water to the inner tank after the laundry weight detection step;
A stirring step of agitating the laundry on which the wetting process has been performed;
A first water level information acquisition step of measuring a change in rotation information of the driving unit while rotating the pulsator;
A second water supply step of additionally supplying a certain amount of washing water to the inner tank;
a second inner tank stirring step of agitating the laundry so that the supplied wash water is absorbed into the laundry;
A second water level information acquisition step of measuring changes in rotation information of the driving unit while rotating the pulsator;
A control method of a laundry treatment apparatus comprising a foam quality determination step of determining the foam quality of the laundry by comparing the rotation information detected in the first water level information acquisition step and the rotation information detected in the second water level information acquisition step. . The method of claim 17, further comprising a washing condition setting step of varying the settings of the washing step, rinsing step, and dehydration step according to the material determined in the material determining step. The laundry treatment apparatus according to claim 17, wherein the clothes treatment device is provided with a circulation passage and a circulation pump to circulate the washing water supplied to the outer tank,
A control method for a clothes treatment device, characterized in that the washing water supplied to the outer tank is circulated and supplied by the circulation passage and the circulation pump in the first or second water supply step. The method of claim 19, wherein the circulation passage is provided with a spray nozzle for spraying wash water into the inner tank, and the wash water is sprayed directly onto the laundry in the inner tank in the first water supply step or the second water supply step. A control method for a clothing processing device. The control method of claim 17, wherein the first water supply step or the second water supply step rotates the inner tub at a constant speed. The method of claim 21, wherein the first water supply step or the second water supply step rotates the pulsator at a constant speed. The control method of claim 17, wherein the first inner tank stirring step is performed while the first water supply step is in progress. The control method of claim 17, wherein the second inner tank stirring step is performed while the second water supply step is in progress. The control method of claim 17, wherein the first rotation speed information acquisition step measures rotation information of the driving unit when the pulsator is rotated for a predetermined time and at a predetermined speed. The method of claim 25, wherein the first rotation speed information acquisition step measures an acceleration time during which the driving unit that rotates the pulsator accelerates to a set rotation speed. The laundry treatment device according to claim 17, wherein the second rotation speed information acquisition step measures rotation information of the driving unit when the pulsator is rotated for a certain time and at a constant speed after the second water supply step. control method. The method of claim 27, wherein the second rotation speed information acquisition step measures an acceleration time during which the driving unit that rotates the pulsator accelerates to a set rotation speed. The method of claim 28, wherein the cell type determination step is
Characterized by determining the foam quality of the laundry put into the inner tub based on the set rotation speed and the acceleration time during which the driving unit accelerates to the set rotation speed acquired in the first rotation speed information acquisition step and the second rotation speed information acquisition step. A control method for a clothing processing device.

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