KR20210123539A - Laundry Treatment Apparatus and Control Method for the same - Google Patents

Abstract

The present application relates to a control method of a laundry treatment apparatus, comprising a water supply step for supplying water to a tub; a water flow forming step provided to rotate only a stirrer among a drum and the stirrer and repeating a process of rotating the stirrer clockwise by a preset first angle and a process of rotating the stirrer counterclockwise by the first angle; a laundry disentangling step for rotating only the stirrer among the drum and the stirrer by a set angle less than the first angle; a draining step for discharging water stored in the tub to the outside of the tub after completion of the laundry disentangling step; and a dehydrating step for rotating the drum and the stirrer in the same direction after completion of the draining step or during the draining step. The control method of the laundry treatment apparatus can minimize the vibration of the drum during dehydration by performing the laundry disentangling step before the draining step.

Description

{Laundry Treatment Apparatus and Control Method for the same}

The present application relates to a laundry treatment apparatus and a method for controlling the laundry treatment apparatus.

In general, a laundry treatment apparatus is a concept including an apparatus for washing clothes (a laundry object, an object to be dried), an apparatus for drying clothes, and an apparatus for performing both washing and drying of clothes.

Among the conventional laundry treatment apparatuses, a cabinet, a tub provided in the cabinet to store water, a drum provided in the tub, a stirring unit provided in the drum, a drum rotating shaft rotating the drum, and provided to pass through the drum rotating shaft There was a thing including a rotating shaft of the stirring unit connected to the stirring unit and the rotor of the motor, and a clutch connecting the drum rotating shaft and the rotor. In the conventional laundry treatment apparatus described above, when the clutch is positioned to connect the drum rotating shaft and the rotor, the drum and the stirring unit rotate together, and when the clutch is positioned to separate the drum rotating shaft and the rotor, only the stirring unit rotates.

In the above-described clothes treatment apparatuses, a water supply step of supplying water to the tub, a washing step of rotating the stirring unit to separate dirt from clothes, a rinsing step of removing detergent from clothes by rotating the stirring unit, and draining the water from the tub It was provided to include a draining step to separate the water from the clothes by rotating the drum and the stirring unit in the same direction.

When the drum is rotated at high speed while the clothes are tangled, a large vibration is generated in the drum, so the conventional clothes treatment apparatus cannot perform the dehydration step when the clothes are tangled, or the dehydration step takes a long time. there was.

An object of the present application is to provide a laundry treatment apparatus capable of minimizing vibration of a drum during spin-drying by performing a cloth unwinding step of untangling clothes before the start of the draining step, and a method for controlling the laundry treatment apparatus.

a tub in which water is stored; a drum rotatably provided inside the tub to store clothes; and a stirrer rotatably provided inside the drum to form a water flow. In the control method of a laundry treatment apparatus comprising: a water supply step of supplying water to the tub; a water flow forming step provided to rotate only the stirrer among the drum and the stirrer, and repeating the steps of rotating the stirrer clockwise to a preset first angle and counterclockwise to the first angle; a popping step of rotating only the agitator among the drum and the stirrer at an angle set smaller than the first angle; a draining step of discharging the water stored in the tub to the outside of the tub after completion of the popping step; and a dehydration step of rotating the drum and the stirrer in the same direction after completion of the draining step or during the draining step.

The popping step may include a stirring step of repeating the process of rotating the stirrer clockwise to a second angle set to a smaller angle than the first angle, and rotating the stirrer counterclockwise to the second angle. can

The foaming step may include a dispersion step of repeating the process of rotating the stirrer clockwise to a third angle set to a smaller angle than the second angle, and rotating the stirrer counterclockwise to the third angle. can

The stirring step and the dispersing step may be alternately performed.

The first angle is set to an angle greater than 180 degrees and less than 270 degrees, the second angle is set to an angle greater than 90 degrees and less than 180 degrees, and the third angle is an angle greater than 0 degrees and less than 90 degrees. can be set to

The first angle may be set to 220 degrees to 230 degrees, the second angle may be set to 130 to 150 degrees, and the third angle may be set to 60 degrees to 70 degrees.

The running time of the stirring step and the running time of the dispersing step may be set to be the same.

The progress time of the stirring step and the progress time of the dispersion step may be set to less than 60 seconds, respectively.

The rotation speed of the stirrer set in the stirring step and the rotation speed of the stirrer set in the dispersing step may be set to be smaller than the rotation speed of the stirrer set in the water flow forming step.

The number of rotations of the stirrer set in the stirring step and the number of rotations of the stirrer set in the dispersing step may be the same.

The present application can provide a laundry treatment apparatus capable of minimizing vibration of a drum during spin-drying by performing a cloth unwinding step of untangling clothing before starting the draining step, and a control method of the laundry treatment apparatus.

1 illustrates an example of a laundry treatment apparatus.
2 shows an example of a driving unit.
3 and 4 show an example of an operation process of the driving unit.
5 is a diagram illustrating an example of a control method of the laundry treatment apparatus.

Hereinafter, a preferred embodiment of the laundry treatment apparatus will be described in detail with reference to the drawings. The configuration or control method of the device to be described below is only for explaining the embodiment of the present application and not for limiting the scope of the present application, and the same reference numbers used throughout the specification indicate the same components .

As shown in FIG. 1 , the laundry treatment apparatus 100 includes a cabinet 1 , a tub 2 provided in the cabinet to store water, and a drum 3 rotatably provided in the tub to store clothes. ), including a stirrer (4) rotatably provided inside the drum.

The cabinet 1 may be provided to form the exterior of the laundry treatment apparatus, and an inlet 11 is provided on the upper surface. The inlet 11 is opened and closed by a door 13 rotatably fixed to the cabinet 1 .

The cabinet 1 may include a control panel 15 for inputting a control command to the laundry treatment apparatus 100 and displaying information related to control of the laundry treatment apparatus. The control panel 15 may include a display unit 151 for displaying information such as a course selectable by a user, and a power switch 153 for supplying power to the laundry treatment apparatus. In addition, the control panel 15 includes a first input unit 155 for selecting a control command displayed on the display unit, and a second input unit 157 for enabling a user to request execution of a control command selected through the first input unit. may be provided.

The tub 2 includes a tub body 21 provided inside the cabinet 1 to store water, and a tub inlet provided on an upper surface of the tub body 21 to communicate the inside of the tub body with the outside ( 23) is provided to include.

The tub body 21 may be provided in a cylindrical shape with an empty interior, and is fixed to the cabinet 1 through the tub support part 22 . The tub inlet 23 is provided to be positioned below the inlet 11 .

The tub 2 receives water through a water supply unit, and discharges water stored in the tub 2 through a drain unit to the outside of the cabinet 1 . The water supply unit may be provided with a water supply pipe 24 connected to a water supply source, and a valve 25 for opening and closing the water supply pipe 24 according to a control signal from a control unit.

The water supply pipe 24 may be provided to supply water to the tub body 21 through the tub inlet 23 , and to a water supply hole (not shown) provided to pass through the upper surface of the tub body 21 . It may be provided to be connected. 1 shows the former as an example.

The drain unit includes a pump 27 , a first drain pipe 26 for guiding water inside the tub body 21 to the pump 27 , and a water discharged from the pump 27 to the outside of the cabinet 1 . It may be provided as a second drain pipe 28 to guide.

In order to detect the water level inside the tub body 21 , the tub 2 may further include a water level detecting unit 29 . The water level sensing unit 29 may be provided in any shape as long as it can detect the water level inside the tub body 21 . In FIG. 1 , the water level sensing unit 29 uses the pressure of the tub body 21 . A case provided to determine the water level is shown as an example.

The drum 3 provided inside the tub 2 may be provided as a cylindrical drum body 31 having a drum inlet 33 on its upper surface. Since the drum inlet 33 is located below the tub inlet 23 , the clothes supplied through the inlet 11 are supplied to the drum body 31 through the tub inlet 23 and the drum inlet 33 . will be supplied with A plurality of drum through-holes 32 are provided on the bottom and circumferential surfaces of the drum body 31 . The inner space of the drum body 31 communicates with the inner space of the tub body 21 through the drum through hole 32 .

The laundry treatment apparatus 100 is provided to include a stirrer 4 rotatably provided on the drum body 3 to form a water flow in the drum body. 1 illustrates a case in which the stirrer 4 is rotatably provided on the bottom surface of the drum body 31 as an example. The stirrer 4 according to this embodiment is a hub 41 forming a center of rotation. , may be provided with a plurality of arms 43 fixed to the hub. The plurality of arms 43 may be provided as a plurality of bars radially protruding from the hub 41 toward the circumferential surface of the drum body 31 .

The drum body 31 and the stirrer 4 may be provided to rotate by one driving unit 5 . The driving unit 5 includes a stator 52 fixed to the outside of the tub body 21 to form a rotating magnetic field, a rotor 53 provided outside the tub body 21 to rotate by the rotating magnetic field, It is provided to penetrate the bottom surface of the tub body, one end is fixed to the drum body 31, and the free end is a drum rotation shaft (first rotation shaft, 54) positioned outside the tub body 21, the first rotation shaft It is provided to pass through 54, and one end is fixed to the rotor 53, and the other end includes a stirrer rotating shaft (second rotating shaft, 55) fixed to the hub 41 of the stirrer.

The stator 52 may be provided in a ring shape, and is provided to include a coil that forms a rotating magnetic field when current is supplied. The stator 52 may be directly fixed to the bottom surface of the tub body 21 or may be provided to be fixed to the support part 51 fixed to the tub body.

The rotor 53 is provided in a cylindrical shape with one surface open, and the circumferential surface of the stator 52 is provided to face the inner circumferential surface of the rotor 53 . A plurality of permanent magnets 351 are provided on the inner circumferential surface of the rotor, and the permanent magnets 531 must be fixed to the inner circumferential surface of the rotor so that N poles and S poles are alternately exposed.

As shown in FIG. 2 , the first rotating shaft 54 is provided to pass through a shaft body 541 provided to penetrate the bottom surface of the tub body 21 , and the shaft body 541 to pass through the shaft body. A shaft through-hole 543 provided along the longitudinal direction (Y-axis direction) of It may be provided to include. The drum fastening part 545 may be provided as a disk fixed to the shaft body 541 .

A first shaft gear 547 provided along a longitudinal direction (Y-axis direction) of the first rotation shaft is provided on a circumferential surface of the shaft body 541 . The first shaft gear 547 should be provided in a space exposed to the outside of the tub body 21 among the spaces provided by the shaft body 541 . FIG. 2 illustrates an example in which the first shaft gear 547 is provided at the free end of the shaft body 541 .

The second rotation shaft 55 is inserted into the shaft through hole 543 , and one end is fixed to the hub 41 , and the other end is fixed to the rotor 53 . The second rotation shaft 55 may be rotatably fixed to the first rotation shaft 54 by being inserted into the bearing 551 fixed inside the shaft through hole 543 .

The second rotation shaft 55 always maintains a state connected to the rotor 53, but the first rotation shaft 54 may be connected to the rotor 53 by a power transmission unit T, and the rotor ( 53) can also be isolated.

The power transmission unit T includes a stopper 56 fixed to the bottom surface of the tub body 21 , a fixing unit 57 provided in the rotor 53 to which the second rotation shaft 55 is fixed, and the It may be provided to include a clutch 58 provided to reciprocate between the stopper 56 and the fixing part 57 in a state coupled to the first shaft gear 547 .

1 , the stopper 56 may be fixed to the bottom surface of the tub body through the support part 51 . As shown in FIG. 2 , the stopper 56 is provided to pass through the stopper body 561 fixed to the support part 51 and the stopper body, and the stopper through-hole 563 into which the shaft body 541 is inserted. ), the stopper body 561 may be provided to include a first fastening portion 565 to which the upper surface of the clutch 58 is fixed.

The fixing part 57 is fixed to the bottom surface of the rotor 53, the fixing body 571 to which one end of the second rotation shaft 55 is fixed, the fixing body 571 in the height direction of the fixing body ( Y-axis direction) may be provided to include the second axis gear 575 provided along.

The second shaft gear 575 is provided to surround the circumferential surface of the second rotation shaft 55 , and the diameter of the second shaft gear 575 is set to be the same as the diameter of the first shaft gear 547 . It is preferable to be

The fixed body 571 may further include a second fastening portion 573 to which the lower surface of the clutch 58 is fixed. The second fastening portion 573 may be provided on the fixed body 571 and may be provided with a plurality of protrusions disposed to surround the second shaft gear 575 .

The clutch 58 is provided to pass through the clutch body 581 positioned between the first fastening part 565 and the second fastening part 573, the clutch body, into which the first rotating shaft 54 is inserted. It includes a clutch through hole 587 and a clutch gear 589 provided in the clutch through hole 587 and fastened to the first shaft gear 547 .

Since the clutch body 581 maintains a state connected to the first rotation shaft 54 through the first shaft gear 547 and the clutch gear 589, the clutch body 581 is connected to the first rotation shaft ( 54) is movable along the height direction (Y-axis direction).

The clutch gear 589 may connect the first shaft gear 547 and the second shaft gear 575 according to the position of the clutch body 581 . That is, when the clutch body 581 moves toward the rotor 53 , the upper end of the clutch gear 589 remains connected to the first shaft gear 547 , and The lower end may maintain a state connected to the second shaft gear 575 .

A clutch first fastening part 583 that is detachably coupled to the first fastening part 565 is provided on the upper surface of the clutch body 581 , and the second fastening part 583 is provided on the lower surface of the clutch body 581 . A clutch second fastening part 585 detachably coupled to the part 573 is provided.

The clutch first fastening part 583 is provided such that a plurality of protrusions protruding from the upper surface of the clutch body 581 are arranged to form a ring, and the clutch second fastening part 585 is the clutch body 581 . ), a plurality of grooves provided on the lower surface may be provided by being arranged to form a ring.

When the clutch first fastening part 583 is coupled to the first fastening part 565 , the clutch gear 589 separates the first shaft gear 547 from the second shaft gear 575 (first Separate the rotating shaft from the rotor). Conversely, when the clutch second fastening part 585 is coupled to the second fastening part 573 , the clutch gear 589 connects the first shaft gear 547 to the second shaft gear 575 . (connect the first rotating shaft to the rotor).

3 and 4 , the power transmission unit T having the above-described structure is reciprocable between the first point P1 and the second point P2 through the clutch transfer units 59a and 59b. The first point P1 is a point at which the first shaft gear 547 and the second shaft gear 575 are maintained in a separated state, and the second point P2 is the first shaft gear 547 . ) and the second shaft gear 575 are maintained in a connected state.

1, the clutch transfer unit may be provided to include a motor 59a for generating a rotational force, and a power conversion unit 59b for converting the rotational force of the motor into a linear reciprocating motion of the clutch 58. have.

As shown in FIG. 3 , the power conversion unit 59b includes a rotating plate 592 rotating by a rotating shaft 591 of the motor, a connecting bar 593 connected to the rotating plate, and a housing by the connecting bar 593 . A piston 595 reciprocating linearly inside 596 may be provided to include an operation bar 597 having one end connected to the piston 595 and the other end supporting the clutch body 581 .

The operation bar 597 may be provided to include a clutch support portion 597a supporting the lower surface of the clutch body 581 and a piston connecting portion 597b connecting the clutch support portion 597a and the piston 595 to each other. can The operation bar 597 is rotatably fixed to the support part 51 through a bar rotation shaft 598 . In FIG. 3 , the bar rotation shaft 598 rotates the clutch support part 597a to the support part 51 . A case in which it is possible is shown as an example. Through the rotation of the rotating plate 592, the clutch 58 will repeat the state of FIG. 3 and the state of FIG.

That is, when the rotating plate 592 in the state of FIG. 3 is rotated by the motor 59a, the piston 595 pushes the piston connecting portion 597b in the direction of the first rotational shaft 54 . When the piston connecting part 597b moves toward the first rotational shaft 54, the free end of the clutch support part 597a moves in a direction away from the stopper 56, and in this process, the clutch 58 engages the It will move until it is connected to the fixing part 57 (state of FIG. 4, it will move until it reaches the second point). When electric power is supplied to the stator 52 in this state, only the agitator among the drum 3 and the agitator 4 will rotate.

In addition, when the rotating plate 592 in the state of FIG. 4 rotates, the piston 595 moves the piston connecting portion 597b in a direction away from the first rotating shaft 54 . When the piston connection part 597b moves in a direction away from the first rotation shaft 54, the free end of the clutch support part 597a moves toward the stopper 56, and in this process, the clutch 58 moves the It will move until it connects to the stopper 56 (state of FIG. 3, it will move until it reaches the first point). When electric power is supplied to the stator 52 in this state, the drum 3 and the stirrer 4 will rotate in the same direction.

5 illustrates an example of a control method of the laundry treatment apparatus having the above-described structure. The control method is a water supply step (S10) of supplying water to the tub body 21 by controlling the valve 25 of the water supply unit, and rotating only the stirrer among the drum 3 and the stirrer 4 to rotate the drum (3) a water flow forming step (S20) of forming a water flow therein.

The water flow forming step (S20) is a process of forming a water flow inside the drum 3 to separate foreign substances or detergents from the clothes. proceed with In the water flow forming step (S20), the clutch 58 is located at a first point P1 that maintains the state in which the first rotation shaft 54 and the rotor 53 are separated.

In the water flow forming step (S20), the stirrer 4 is preferably controlled to repeat clockwise rotation and counterclockwise rotation. That is, in the water flow forming step (S20), the stirrer 4 may be provided to repeat the process of rotating in a clockwise direction up to a preset first angle, and in a counterclockwise direction up to the first angle.

During the process of the water flow forming step (S20), the control method determines whether the running time of the water flow forming step reaches a preset time. When the running time of the water flow forming step (S20) reaches the set time, the control method operates the pump 27 of the drain unit to discharge the water stored in the tub 2 to the outside of the cabinet 1 A draining step (S40) is performed.

After completion of the draining step (S40), the control method proceeds to the dewatering step (S50). The dewatering step may be provided as a step of rotating the drum 3 and the stirrer 4 at a preset number of spins for dehydration along the same direction. In the dehydration step (S50), since the drum 3 and the stirrer 4 must rotate in the same direction at the same time, the clutch 58 maintains the state in which the first rotation shaft 54 and the rotor 53 are coupled. It should be located at the second point (P2) to keep it.

Unlike the above, the dehydration step (S50) may be provided to be started while the draining step (S40) is in progress. When the dehydration step (S50) is started in a state in which water remains in the tub (2) (a state in which the draining step is not completed), the effect of evenly distributing the clothes in the drum (3) can be realized, and this Through the control method, it is possible to minimize the drum generated in the drum during the dehydration step (S50).

In order to minimize the vibration generated in the drum during the dewatering step (S50), the control method may proceed to the unwinding step (S30) before the start of the draining step (S40).

The foaming step (S30) is a step of rotating only the stirrer 4 among the drum 3 and the stirrer 4, and the rotation angle of the stirrer 4 in the foaming step (S30) is It is set smaller than the first angle.

5 shows a case in which the foaming step (S30) is provided with a stirring step (S31) and a dispersing step (S33). The foaming step (S30) may be provided to alternately repeat the stirring step (S31) and the dispersing step (S33), the progress time of the stirring step (S31) and the progress of the dispersing step (S33) The time can be set to less than 60 seconds each (minimizing increase in washing time). The running time of the stirring step (S31) and the running time of the dispersing step (S33) may be set to be the same, and the running time of the dispersing step (S33) is set to be longer than the running time of the stirring step (S31) can

The stirring step (S31) is a step of repeating the process of rotating the stirrer 4 clockwise to a second angle set to a smaller angle than the first angle, and rotating the stirrer 4 to the second angle in a counterclockwise direction. can be provided with The dispersing step (S33) is a step of repeating the process of rotating the stirrer 4 clockwise to a third angle set to a smaller angle than the second angle, and rotating the stirrer 4 to the third angle in a counterclockwise direction. can be provided with

The number of rotations of the stirrer 4 set in the stirring step S31 and the rotation speed of the stirrer 4 set in the dispersing step S33 is the rotation of the stirrer 4 set in the water flow forming step S20. It is preferable to set it to be smaller than the number. This is to induce separation and dispersion of bundled clothes by lowering the moving speed (the speed at which the clothes move along the circumferential surface of the tub) formed through the water flow forming step (S20).

The number of revolutions of the stirrer set in the stirring step (S31) and the number of revolutions of the stirrer set in the dispersing step (S33) may be set to be the same, and the number of revolutions of the stirrer set in the dispersing step (S33) is the stirring step It may be set lower than the number of rotations of the stirrer set in (S31). For example, the number of rotations of the stirrer in the water flow forming step (S20) is set to 450 to 550 RPM, and the number of rotations of the stirrer in the stirring step (S31) and the dispersing step (S33) is set to 250 to 350 RPM. can

The first angle set in the stirrer 4 in the water flow forming step (S20) is set to an angle greater than 180 degrees and smaller than 270 degrees, and the second angle set in the stirrer 4 in the stirring step (S31) is It is set to an angle greater than 90 degrees and less than 180 degrees, and the third angle set in the stirrer 4 in the dispersion step S33 may be set to an angle greater than 0 degrees and less than 90 degrees. For example, the first angle may be set to 220 degrees to 230 degrees, the second angle may be set to 130 to 150 degrees, and the third angle may be set to 60 degrees to 70 degrees.

The control method of FIG. 5 shows a case in which the foaming step (S30) executes both the stirring step (S31) and the dispersing step (S33). Unlike the drawing, the foaming step (S30) is It may be provided to execute only one of the stirring step (S31) and the dispersing step (S33).

The above-described laundry treatment apparatus and the method for controlling the laundry treatment apparatus may be modified and implemented in various forms, but the scope of the rights of the present application is not limited to the above-described embodiments.

100: clothes processing device 1: cabinet 15: control panel
2: tub 21: tub body 23: tub inlet
24: water supply pipe 29: water level detection unit 3: drum
4: agitator 5: drive part 51: support part
52: stator 53: rotor 54: first rotational shaft
541: shaft body 543: shaft through hole 545: drum fastening part
547: first shaft gear 55: second rotation shaft 551: bearing
T: power transmission unit 56: stopper 561: stopper body
563: stopper through hole 565: first fastening part 57: fixing part
571: fixed body 573: second fastening part 575: second shaft gear
58: clutch 581: clutch body 583: clutch first fastening part
585: clutch second fastening part 587: clutch through hole 589: clutch gear
59a: motor 59b: power conversion unit 591: motor rotating shaft
592: rotating plate 593: connecting bar 594: bending groove
595: piston 596: housing 597: actuation bar
598: bar rotation axis

Claims (10)

a tub in which water is stored; a drum rotatably provided inside the tub to store clothes; and a stirrer that is rotatably provided inside the drum to form a water flow,
a water supply step of supplying water to the tub;
a water flow forming step provided to rotate only the stirrer among the drum and the stirrer, and repeating the steps of rotating the stirrer clockwise to a preset first angle and counterclockwise to the first angle;
a popping step of rotating only the agitator among the drum and the stirrer at an angle set smaller than the first angle;
a draining step of discharging the water stored in the tub to the outside of the tub after completion of the popping step; and
and a dehydration step of rotating the drum and the stirrer in the same direction after the draining step is completed or during the draining step. According to claim 1,
The popping step includes: a stirring step of repeating the process of rotating the stirrer clockwise to a second angle set to a smaller angle than the first angle, and rotating the stirrer counterclockwise to the second angle A method of controlling a laundry treatment apparatus, characterized in that. 3. The method of claim 2,
The popping step includes a dispersion step of repeating the process of rotating the stirrer clockwise to a third angle set to a smaller angle than the second angle, and rotating the stirrer counterclockwise to the third angle. A method of controlling a laundry treatment apparatus, characterized in that. 4. The method of claim 3,
The method of controlling a laundry treatment apparatus, characterized in that the stirring step and the dispersing step are alternately performed. 5. The method according to any one of claims 1 to 4,
The first angle is set to an angle greater than 180 degrees and less than 270 degrees,
The second angle is set to an angle greater than 90 degrees and less than 180 degrees,
and the third angle is set to be greater than 0 degrees and less than 90 degrees. 6. The method of claim 5,
The first angle is set to 220 degrees to 230 degrees,
The second angle is set to 130 to 150 degrees,
The third angle is a control method of a laundry treatment apparatus, characterized in that set to 60 degrees to 70 degrees. 6. The method of claim 5,
The control method of the laundry treatment apparatus, characterized in that the running time of the stirring step and the running time of the dispersing step are set to be the same. 8. The method of claim 7,
The control method of the laundry treatment apparatus, characterized in that the duration of the stirring step and the duration of the dispersing step are set to less than 60 seconds, respectively. 9. The method of claim 8,
The method of claim 1, wherein the number of revolutions of the stirrer set in the stirring step and the number of revolutions of the stirrer set in the dispersing step are set to be smaller than the number of revolutions of the stirrer set in the water flow forming step. 10. The method of claim 9,
The control method of the laundry treatment apparatus, characterized in that the rotation speed of the stirrer set in the stirring step and the rotation speed of the stirrer set in the dispersing step are the same.

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