KR101592992B1 - Control method of a laundry treatment machine - Google Patents

Abstract

The control method of the laundry processing apparatus according to the present invention detects the pattern of the motor, judges whether the cloth is floating according to the detected pattern of the motor, and controls the operation suitable for the floating cloth to improve the washing and rinsing performance In addition, it has an effect of preventing scattering and overflow phenomenon of water generated by floating of the can.

Washing machine, top load, control, motor, floating, pillow

Description

Technical Field [0001] The present invention relates to a control method of a laundry treatment machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a laundry processing apparatus, and more particularly, to a laundry processing apparatus capable of preventing scattering and overflow of water caused by floating of a cloth, and further improving washing and rinsing performance.

Generally, a laundry processing apparatus includes a washing machine that removes contaminants from clothes, bedding, and the like (hereinafter referred to as "foam") by using water, a detergent, and a mechanical action, A dryer for drying a wet cloth by using a washing machine, and a washing machine for drying combined with a washing function and a drying function.

The washing machine may further include a top-load type washing machine in which a swinging and entering hole is formed on an upper surface of a cabinet and washing is performed by a rotating water stream generated when the inner tub is rotated, And a drum type washing machine in which washing is performed by a drop of a can.

A conventional top-load type washing machine comprises a cabinet having an external appearance and having an open upper surface, a top cover coupled to an opened upper surface of the cabinet and having a take-in / out hole, a door rotatably installed in the take-in / An outer tub disposed inside the cabinet and storing water; an inner tub disposed inside the outer tub and washing the inner tub; a motor device disposed at a lower portion of the inner tub to rotate the inner tub; A water supply device for supplying water into the outer tank, and a water drain for draining the water in the outer tank. The washing machine further includes a detergent supply device disposed in communication with the water supply device for supplying detergent together with water.

A pulsator forming a water stream may be integrally formed with the inner tub on the inner surface of the inner tub, or may be separately installed.

In the conventional washing machine constructed as described above, washing, rinsing, dewatering, etc. are performed while the inner tank and the pulsator are rotated in one direction or in different directions.

When the inner tank and the pulsator rotate at a high speed, the washing water flows out to the outside of the inner tank through the through hole of the inner tank by the centrifugal force, then flows upward along the space between the inner tank and the outer tank, (Hereinafter referred to as " alpha water "). As described above, when the washing water passes through the through hole of the inner tub, the inner tub is closely attached to the inner wall surface of the inner tub. Further, the alpha water injected on the upper side of the inner tank permeates the inner tank, and the contaminants are separated from the captive while repeating this process.

However, the conventional washing machine does not detect such a large volume as a pillow or the like when the inner tank is filled up or the bags floating in the inner tank are inserted. Therefore, there is a problem that the floating water is blocked from the water supply channel and water supply is not properly performed. In addition, there is a problem that the overflow phenomenon that the alpha water injected from the upper part of the inner tank hits the floating pellets, Is generated. As a result, the washing performance is deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a laundry processing apparatus capable of preventing scattering and overflow of water generated by floating of a can, such as a pillow.

A control method for a laundry processing apparatus according to the present invention includes: a motor pattern sensing step of sensing a pattern of a motor by driving a motor after a cloth is inserted into an inner tank; comparing a pattern of the sensed motor with a pre- And an operation step of performing a predetermined suspended particle mode if it is determined that the bag is in a floating state.

In the present invention, the motor pattern sensing step may detect the number of pulses varying according to the rotation speed of the inner rotor and the pulsator.

Further, in the present invention, in the deciding step, the detected pattern of the motor is compared with the pre-stored pattern to determine that the floating cap is a pillow.

In the present invention, the floating mode is controlled such that the maximum rotation speed of the motor is lower than the maximum rotation speed when the carriage is not in the floating state.

In the present invention, it is preferable that the floating mode is such that the rotation speed of the motor is equal to or higher than the rotation speed at the time when the bag in the inner tank starts to be pressed on the inner wall surface of the inner tank by the centrifugal force, Is controlled to be less than the rotational speed at the time of rising along the inner wall surface of the outer tub after passing through the wall surface of the inner tub and starting to be injected upward of the inner tub.

Further, in the present invention, the floatation mode controls the water supply assembly such that the water level of the inner tank is higher than the highest water level when the float is not floating.

Further, in the present invention, the floating mode blows water through the spray nozzle provided above the inner tank.

Further, in the present invention, if it is determined that the bag is in a floating state, the method further includes a display step of displaying a warning to the outside.

 Further, in the present invention, when it is judged that the floating cap is a pillow, a warning is given to the outside to insert the pillow in the horizontal direction in the inner tank.

The control method of the laundry processing apparatus according to the present invention can detect the pattern of the motor, judge whether the cloth is floating according to the pattern of the motor, control the operation suitable for the floating cloth, and improve the washing and rinsing performance In addition, it has an effect of preventing scattering and overflow phenomenon of water generated by floating of the can.

Hereinafter, a top load type washing machine (hereinafter, referred to as 'washing machine') as an embodiment of the laundry processing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a top-load type washing machine according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the washing machine shown in FIG. 1, and FIG. 3 is a cross- And FIG.

Referring to FIGS. 1 and 2, a washing machine according to a first embodiment of the present invention includes a case 1 forming an outer appearance, and a leg assembly coupled to a lower portion of the case 1.

The cabinet 2 has a top surface and a bottom surface which are opened to form a side surface of the washing machine. The top cover 3 covers the opened upper surface of the cabinet 2. 2 on the open bottom.

The cabinet 2 includes an outer tub 4 in which water is received, an inner tub 6 disposed inside the tub 4 to receive laundry, a motor 8 for driving the inner tub 6 A water supply assembly for supplying water to the inside of the outer tank 4 and a drainage assembly 20 for draining water in the outer tank 4 after the washing or dewatering is completed.

The case 1 further includes a detergent supply unit 30 installed in the top cover 3 for temporarily storing detergent. The detergent supply unit 30 is connected to the water supply assembly 10 and is configured to supply detergent into the inner tank 6 together with water to be supplied.

The top cover 3 is provided with a bag entrance / exit hole 3a so that the bag can be inserted or removed. The top cover 3 is provided with a door 50 for opening and closing the entry / exit hole 3a. At least a part of the door 40 may be made of glass so that the inside of the door 40 can be seen. That is, the door 40 includes a frame portion 40a and a glass portion 40b sandwiched between the frame portion 40a.

A display panel 7 is mounted on one side of the top cover 3 for inputting an operation of the washing machine or displaying the operating state of the washing machine.

The outer tub 4 is disposed at an inner upper portion of the cabinet 2 to be suspended by a plurality of suspensions 15. One end of the suspension 15 may be coupled to the upper portion of the inside of the cabinet 2 and the other end may be coupled to the lower portion of the outer tank 4. [

A pulsator (9) is provided on the bottom surface of the inner tank (6) to form a rotating water flow of the water contained in the outer tank (4).

The pulsator 9 is integrally formed with the inner tub 6 so that the inner tub 6 and the pulsator 9 can rotate together when the motor is rotated. It is possible to separately form the inner tank 6 and rotate separately when the motor is rotated.

On the upper side of the inner tank 6, there is provided a balancer 12 for preventing the inner tank 6 from being out of balance due to the inclination of the can. The balancer 12 may be a liquid balancer filled with a liquid such as salt water.

On the upper side of the outer tank (4), an outer tank cover (14) is provided to prevent the separation of the bag and the scattering of water.

The water supply assembly 10 includes an outer hose 11 for guiding water supplied from an external faucet or the like to the washing machine, a water supply valve 12 connected to the outer hose 11 to intermittently supply water, And a water supply hose 13 connecting the water supply valve 12 and the detergent supply unit 30. [ The water supply valve (12) and the water supply hose (13) form a water supply channel for supplying water.

The detergent supply unit 30 is disposed on the water supply channel. The detergent supply unit 30 includes a detergent box housing 31 connected to the water supply hose 13, a detergent box 32 detachably attached to the detergent box housing 31, 31) and disposed on the upper surface of the detergent box (32) to spray water.

The detergent box housing 31 is installed in a detergent box mounting portion formed on one side of the top cover 3.

The detergent box 32 is coupled to the detergent box housing 31 so that a user can take it out of the detergent box housing 31 for inputting detergent. The detergent box 32 may be slidably coupled to the detergent box housing 31 in the front-rear direction. At least a part of the back surface of the detergent box 32 is opened so that the detergent can be introduced into the detergent box housing 31 through the back surface of the detergent box 32 together with water when water is supplied.

The drainage assembly 20 includes a first drainage hose 21 connected to a lower portion of the outer tank 4, a drain valve 22 provided on the first drainage hose 21 to block drainage of water, And a second drain hose (24) connected to the drain pump housing (24) and draining water pumped by the drain pump to the outside of the cabinet (2). The drain pump housing 25). A drain motor for driving the drain pump is housed in the drain pump housing 24.

The drainage assembly 20 may be disposed between the outer tank 4 and the base 5.

The water supply assembly 10 further includes an injection nozzle 40 for injecting water supplied from the water supply channel into the inner tank 6. [ The spray nozzle 40 may be installed in the top cover or may be installed in the detergent supply unit 30. [

4 is a block diagram illustrating a configuration for controlling a washing machine according to an embodiment of the present invention.

4, the washing machine includes an input unit 7a disposed on the display panel 7 and configured to allow a user to input operation of the washing machine, and a display unit 7b And a control unit 50 for controlling the operation of the motor 8 and the water supply assembly 10, the drainage assembly 20 and the display unit 7b when the operation is inputted through the input unit 7a .

The washing machine further includes a voltage sensing unit 51 for sensing a variation of a voltage applied to the motor 8. The control unit 50 receives the variation of the voltage sensed by the voltage sensing unit 51, and determines the type of the battery pack and the battery, thereby controlling the operation of the washing machine.

5 is a flowchart illustrating a method of controlling a washing machine according to an embodiment of the present invention.

Referring to FIGS. 4 and 5, a method of controlling a washing machine according to an embodiment of the present invention will be described.

First, when power is applied to the washing machine, the control unit 50 performs a step of detecting the amount of laundry (S10). The amount of the dry cloth is sensed before the water supply (S11) ). Then, it detects the state of the state after the water supply (S13)

In order to detect the amount of the waste, the power of the motor 8 is applied, and the pattern of the motor 8 is sensed by alternately turning the inner tank 6 and the pulsator 9 for a predetermined period of time. In the present embodiment, the number of pulses generated by the motor 8 is detected by the pattern of the motor 8, and the description will be limited.

When the motor 8 is turned off, a pulse is generated in the motor 8 by the availability of the motor 8. At this time, the amount of the generated pulse is detected according to the number of pulses having a set value or more. The quantity is determined according to the number of pulses, and the quantity is calculated from a table previously input. The larger the amount of pulses, the slower the rotation speed and the fewer pulses are generated. The smaller the amount of pulses, the faster the rotation speed and the larger the number of pulses. Therefore, it is possible to judge the amount of the discharge according to the number of pulses.

On the other hand, when the bag inserted in the inner tank 6 is floating in the water, the pulsator 9 is idle. When the pulsator 9 is idle, the rotational speed is increased, and a large number of pulses are generated.

Therefore, in the case of the floating cloth, a pattern different from the pattern of the motor detected when the general cloth is put in can be detected.

The control unit 50 compares the pattern of the motor 8 sensed when the motor 8 is driven in the sweep amount sensing step with the pattern of the motor sensed at the time of inputting the normal sweep, (S20). The pattern of the motor is stored in advance when the general gun is charged.

In the float determination step, if the detected motor pattern is out of a certain range from the previously stored motor pattern, it can be determined that the bag is in a floating state. When the bag is floated, it includes a bagasse, and may include a pillow or a bed sheet. It is of course possible to determine whether the type of the motor is a pillow or a type other than a pillow by subdividing the previously stored motor pattern and comparing the detected motor pattern with a plurality of patterns of the previously stored motor.

If it is determined that the bag is in a floating state, the control unit 50 may display a warning through the display unit 7b. (S30) The display unit may display a warning with at least one of a letter, a number, and a sound.

The control unit 50 may display a warning message that the pillow is to be laid horizontally when the floating pillow is a pillow through the display unit 7b. It is advantageous to secure an empty space on the upper part of the inner tub when the pillow is laid down and the pillow is vertically installed. If space is secured on top of the inner tank, water splashing is reduced during water supply.

The controller 50 displays a warning through the display unit 7b, sets a floating mode after a predetermined time (S40), and performs washing and rinsing according to the displayed information. (S50)

The control unit 50 controls the maximum rotational speed of the motor 8 to be lower than the maximum rotational speed at the time of input of the regular cloth, not the floating cloth, in the floating mode.

The motor 8 is accelerated to a predetermined speed so that the cloth in the inner tank 6 is pressed against the inner wall surface of the inner tank 6 by the centrifugal force during the washing, The washing water in the washing tub 1 passes through the wall surface of the inner tub 6 by the centrifugal force and then rises along the inner wall surface of the outer tub 4 to hit the tub cover 14, Thereby performing the centrifugal permeation washing mode.

On the other hand, when the laundry is in a floating state, when the washing water is sprayed from the upper side of the inner tank 6 toward the laundry, the sprayed washing water is scattered to the laundry.

Therefore, when the bag is in a floating state, it is preferable that the wash water in the inner tank 6 is raised along the wall surface of the outer tank 4 so as not to be sprayed upward of the inner tank.

Therefore, the rotational speed of the motor 8 is controlled to be lower than the rotational speed of the centrifugal permeation washing mode.

That is, the rotational speed of the motor 8 is equal to or higher than the rotational speed at the time when the hopper 6 in the inner tank 6 begins to be pressed against the inner wall surface of the inner tank 6 by the centrifugal force, So as to be lower than the rotational speed at the time of starting to be sprayed upward from the inner tank 6 along the inner wall surface of the outer tank 4 after passing through the wall surface of the inner tank 6. [

3, when the rotational speed of the motor 8 is controlled as described above, the cloth is compressed on the inner wall surface of the inner tub 6, and the washing water is supplied to the outer tub 6 4 can be prevented from rising between the inner wall surfaces of the first and second plates.

In addition, in the floating spray mode, water supply through the spray nozzle (40) is blocked. Accordingly, the phenomenon that the washing water injected through the injection nozzle 40 is scattered by colliding with the can is prevented.

In addition, in the floating mode, the water supply valve is controlled such that the water level of the inner tank 6 is higher than the maximum water level when the tank is not in the floating state. That is, it is preferable that water in the floating state is submerged enough.

The control method of the laundry processing apparatus according to the present invention detects the pattern of the motor, judges whether the cloth is floating according to the detected pattern of the motor, and controls the operation suitable for the floating cloth to improve the washing and rinsing performance In addition, it has an effect of preventing scattering and overflow phenomenon of water generated by floating of the can.

1 is a perspective view of a top load type washing machine according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the washing machine shown in FIG. 1. FIG.

FIG. 3 is a block diagram illustrating a centrifugal permeable washing of a floating foam mode according to an embodiment of the present invention. Referring to FIG.

4 is a block diagram illustrating a configuration for controlling a washing machine according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

4: outer tub 6: inner tub

8: Motor 9: pulsator

14: a tub cover 50:

Claims (9)

A rainy sensing step of sensing a pattern of the motor by driving the motor before the water is supplied to the inner tank before the water is supplied; Detecting a pattern of the motor by driving the motor after water supply; A deciding step of deciding that the carriage is in a floating state when the detected pattern of the motor deviates from the pre-stored pattern; And performing a predetermined suspended particle mode if it is determined that the bag is in a floating state. A rainy sensing step of sensing a pattern of the motor by driving the motor before the water is supplied to the inner tank before the water is supplied; Detecting a pattern of the motor by driving the motor after water supply; Comparing the sensed motor pattern with a plurality of pre-stored patterns to determine whether the can is a pillow; And if it is determined that the carriage is a pillow, performing the floating mode. The method according to claim 1 or 2, In the rabbit sensing step and the dampening sensing step, A method for controlling a laundry processing apparatus, comprising: detecting a pattern of the motor by turning on a pulsator by applying power to the motor and detecting the number of pulses generated by the motor due to the availability of the motor when the motor is off. The method according to claim 1 or 2, In the floating mode, And the maximum rotational speed of the motor is lower than the maximum rotational speed of the motor when the maximum rotational speed of the motor is not in the floating state. The method according to claim 1 or 2, In the floating mode, The rotational speed of the motor is equal to or higher than the rotational speed at the time when the bag in the inner tank starts to be pressed on the inner wall surface of the inner tank by the centrifugal force, So that the wash water in the inner tub is controlled to be lower than a rotation speed at a time point at which the wash water in the inner tub starts to rise along the inner wall surface of the outer tub after passing through the wall surface of the inner tub by centrifugal force and starts to be sprayed upward. The method according to claim 1 or 2, In the floating mode, And controlling the water supply assembly such that the water level of the inner tank is higher than the highest water level when the water level is not in the floating state. The method according to claim 1 or 2, In the floating mode, And the water supply through the jet nozzle provided above the inner tank is cut off. The method according to claim 1 or 2, Further comprising a display step of displaying a warning to the outside when it is determined that the bag is in a floating state. The method of claim 2,  And when the floating cap is judged to be a pillow, displays a warning to the outside that the pillow should be horizontally inserted into the inner tank.

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