KR101595230B1 - Control method of laundry treatment machine - Google Patents

Abstract

The control method of the laundry processing apparatus according to the present invention is characterized in that the washing tub is alternately rotated clockwise and counterclockwise to cause the washing water to flow along the inner wall of the washing tub, Can be introduced through the part. Therefore, since a large amount of wash water passes through the lint filter and foreign matters are filtered, the filtering efficiency can be improved.

Washing machine, top load, control, method, lint filter

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a laundry method,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a control method for a laundry processing apparatus, and more particularly, to a control method for a laundry processing apparatus capable of improving filtering efficiency by maximizing the amount of washing water flowing into a lint filter.

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 washing machine that combines a washing function and a drying function, and a refresher that prevents allergy caused by spraying heated steam by spraying the laundry, Are collectively referred to as various apparatuses.

The washing machine includes a top-load type washing machine in which a laundry inlet / outlet hole is formed on an upper surface of a cabinet and washing is performed by a rotating water flow generated when the washing 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 outer surface and an upper surface opened, a base provided at a lower portion of the cabinet, an outer tub disposed inside the cabinet and storing water, A water supply device for supplying water into the outer tank, and a water drainage device for draining the water in the outer tank, wherein the water supply device comprises: .

However, the conventional laundry processing apparatuses can not effectively remove foreign matters such as seams contained in the washing water, and thus there is a problem that the foreign matter is repelled by foreign substances or the like, and the drainage is not performed properly due to a large amount of foreign matter.

Meanwhile, in recent years, a lint filter for filtering out foreign substances has been mounted on the inner wall surface of the washing tub. However, if the inflow of washing water into the lint filter is not smooth, the filtering efficiency is lowered.

It is an object of the present invention to provide a control method of a laundry processing apparatus capable of increasing the inflow amount of washing water into a lint filter.

A control method of a laundry processing apparatus according to the present invention includes a washing water flow forming step of rotating a washing tub in one direction to circulate washing water in an up and down direction to wash laundry, So that the washing water flows along the inner side wall of the washing tub, and the washing water flows into the side inlet of the lint filter mounted on the inner wall of the washing tub.

In the present invention, it further includes a forging step for alternately rotating the pulsator clockwise and counterclockwise to cause the pulley to unwind.

In the present invention, the washing water flow forming step, the forging step, and the filtering water flow forming step may be sequentially repeated.

In the present invention, after the washing water flow forming step is repeated a first predetermined number of times, the forging step and the filtering water flow forming step may be repeated in order for a second set number of times.

In the present invention, the rotating speed of the washing tub in the filtering water flow forming step may be set to be less than the rotating speed of the washing tub in the washing water flow forming step.

In the present invention, the filtering water flow forming step may rotate the washing tub at a predetermined rotational speed for a preset time.

In the present invention, the filtering water flow forming step may set the rotating speed of the washing tub according to the level of the washing tub.

The control method of the laundry processing apparatus according to the present invention is characterized in that the washing tub is alternately rotated clockwise and counterclockwise to cause the washing water to flow along the inner wall of the washing tub, Can be introduced through the part. Therefore, since a large amount of wash water passes through the lint filter and foreign matters are filtered, the filtering efficiency can be improved.

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

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 10 coupled to a lower portion of the case 1. As shown in FIG.

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 is provided with an outer tub 4 in which water is received, a washing tub 6 disposed inside the tub 4 to receive the laundry, a motor 8 for driving the 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 and is configured to supply detergent into the washing tub 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 40 for opening and closing the catch-and-insert 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 washing tub 6 to form a rotating water flow of the water contained in the tub 4. As shown in FIG. The pulsator 9 is integrally formed with the washing tub 6 so that the washing tub 6 and the pulsator 9 can be rotated together when the motor 8 rotates and the pulsator 9 May be formed separately from the washing tub 6 so as to rotate separately when the motor 8 rotates.

On the upper side of the washing tub 6, a balancer 12 is provided to prevent the washing tub 6 from being unbalanced by the inclination of the tub. 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), a tub cover (14) for preventing the release of the cloth and the scattering of water is provided.

The tub cover 14 is installed to cover the space between the outer tub 4 and the washing tub 6.

The washing water that has passed through the side wall of the washing tub 6 due to the centrifugal force during the rotation of the washing tub 6 ascends toward the tub cover 14 along the space between the tub 4 and the washing tub 6 And then flows into the washing tub 6 after hitting the tub cover 14.

The water supply assembly includes an external hose 11 for guiding water supplied from an external faucet to the washing machine, a water supply valve 12 connected to the external hose 11 to intermittently supply water, 12) and the water supply hose (13) connecting 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 to inject 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 drainage pump housing 24 including a first drainage hose 21 connected to a drainage hole 26 formed in a lower surface of the outer tank 4 and a drainage pump for pumping water, And a second drain hose (25) connected to the pump housing (24) to drain the water pumped by the drain pump to the outside of the cabinet (2). 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.

3 is a front view of a lint filter according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, the washing tub 6 is equipped with a lint filter 60 for filtering foreign matters such as seams and lint from laundry.

The lint filter (60) is mounted on the inner wall of the washing tub (6). Here, it is also possible that a plurality of the lint filters 60 are arranged at a predetermined interval.

The lint filter 60 has a rectangular shape elongated in the vertical direction.

The lint filter 60 includes a front body 61, a rear body (not shown) coupled to a rear surface of the front body 61, and a rear body (not shown) disposed between the front body 61 and the rear body And a mesh (not shown).

The lint filter 60 has a side inlet 80 formed at a side thereof so that the washing water circulating in the circumferential direction of the washing tub 6 is introduced laterally when the washing tub 6 rotates. The side entrance portions 80 are formed on the left and right side portions 61a and 61b of the front body 61, respectively. The side inlet portion 80 is an inlet hole formed on the left and right sides of the front body 61, respectively. The inflow holes may be a plurality of inflow holes, and three inflow holes are arranged in a line so that the inflow holes are vertically spaced apart from each other by a predetermined distance.

An outlet for discharging washing water filtered by foreign substances to the washing tub 6 is formed in a front portion of the front body 61. The outlet portion is a plurality of discharge holes 61c formed on the front surface of the front body 61.

A check valve 70 is installed in the side inlet part 80 to prevent the wash water flowing into the filter 60 from flowing back to the outside of the filter 60.

A plurality of check valves (70) are installed in the side inlet portion (80). The plurality of check valves 70 are formed to have the same number as the number of the inlet holes of the side inlet portion 80. Therefore, three check valves 70 are disposed on the left and right sides of the front body 61, respectively.

That is, the check valve 70 includes first, second, and third check valves 71, 72, and 73 spaced apart in the vertical direction.

The first, second, and third check valves 71, 72, and 73 are selectively opened and closed at least partially depending on the level of the washing tub 6. For example, when the water level of the washing tub 6 is lower than the second check valve 72, only the third check valve 73 is opened. If the water level of the washing tub 6 is higher than the second check valve 72, the first, second and third check valves 71, 72 and 73 may be all opened.

The check valve 70 is installed to be openable and closable laterally in the side inlet portion 80, that is, in the lateral direction with respect to the lint filter 60. The check valve 70 is installed to open only in the inward direction of the lint filter 60 by the water pressure of the washing water flowing through the side inlet portion 80.

The check valve 70 has a rectangular panel shape having a long length and a small thickness in the vertical direction. The check valve 70 is made of an elastic material so that it can be rotated by the water pressure of the washing water flowing through the side inlet part 80. That is, the check valve 70 may be made of rubber, silicone, or the like. The upper and lower ends of the check valve 70 are rotatably coupled to the side inlet portion 80.

The operation of the lint filter according to the embodiment of the present invention will now be described.

When at least one of the washing tub 6 and the pulsator 9 rotates due to the driving of the motor 8 during operation of the washing tub 6, A rotating water stream flowing in the circumferential direction is formed.

The water pressure of the rotating water flow pushes the check valve 70 to the inside of the filter 60 so that the check valve 70 opens to the inside of the filter 60 as shown in FIG.

Therefore, the rotating water flow is introduced into the filter 60 through the side inlet portion 80 of the filter 60. The introduced washing water is filtered through the mesh part 62 and then discharged to the washing tub 6 through the discharge hole 61c.

On the other hand, when stopping the motor 8, terminating the washing cycle, or discharging the water, the water pressure of the washing water flowing into the filter 60 weakens or disappears.

The check valve 70 returns to its original position to prevent washing water or foreign matter remaining in the filter 60 from flowing back through the side inlet portion 80.

4 is a flowchart showing a control method of a washing machine according to an embodiment of the present invention.

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

Power is applied to the washing machine, and after it detects the amount of water, it is watered at a certain level according to the amount of the detected amount. (S1)

When the water supply is completed, the control unit performs the washing water flow forming step to form a washing water flow, which will be described later, by rotating the washing tub 6 in either a clockwise or counterclockwise direction at a high speed.

In the washing water flow forming step, the pulsator 9 may rotate together, and the washing tub 6 may be rotated.

When the washing tub 6 rotates at a high speed in one direction, the washing water in the washing tub 6 escapes to the outside of the washing tub 6 through the through hole of the washing tub 6 by the centrifugal force. The washing water that has escaped rises along the space between the washing tub 6 and the outer tub 4 and flows toward the tub cover 14 and then hits the tub cover 14, Thereby forming a water flow into the inside. That is, the water flow that raises the washing water to the upper side of the washing tub 6 and then descends the washing water as described above is also referred to as washing water, circulating water, or alpha water. The washing water can be efficiently circulated by circulating the wash water in the vertical direction.

The controller repeatedly rotates the washing tub 6 at a high speed in one direction for a preset number of times N1. In the present embodiment, the set number of times N1 is four, for example. (S3)

Then, the control unit rotates the pulsator 9 in both directions to perform the unwrapping step. In the forging step, the pulsator 9 is rotated alternately in clockwise and counterclockwise directions (S4)

In the unwinding step, the pulsator 9 can be rotated in both directions for a predetermined number of times or a set time.

After the unwrapping step, a filtering water flow forming step is performed to rotate the washing tub 6 in both directions to form a filtering water flow so that the washing water can flow well into the lint filter 60. (S5)

When the washing tub 6 is alternately rotated clockwise or counterclockwise, the washing water flows along the inner wall of the washing tub 6. Since the lint filter 60 has the side inlet portions 80 at the left and right side portions thereof, when the washing water flows along the inner wall of the washing tub 6, Can be introduced. A larger amount of wash water can be introduced into the side inlet portion 80 of the lint filter 60 so that a larger amount of wash water can be filtered and the filtering efficiency can be improved.

In the filtering water flow forming step, the rotational speed of the washing tub 6 may be set to be lower than the rotational speed of the washing tub 6 in the washing water flow forming step. In the washing water flow forming step, the washing water needs to be circulated in the vertical direction, so that the washing tub 6 is rotated at a relatively high speed. On the other hand, in the filtering water flow forming step, the washing water flows into the side inlet portion 80 of the lint filter 60 while rotating in the circumferential direction along the inner side wall of the washing tub 6, It is preferable to rotate at a low speed.

In the filtering water flow forming step, the rotation speed of the washing tub 6 may be set differently according to the level of the washing tub 6. That is, the rotational speed of the washing tub 6 may be set to be proportional to the water level of the washing tub 6.

Also, the filtering water flow forming step can be performed for a set number of times or a set time, and is performed for a set time t1. For example, the set time t1 may be set to 60 seconds. (S6)

Thereafter, the controller re-executes the unwinding step for rotating the pulsator 9 in both directions (S7)

Thereafter, the filtering water flow forming step for rotating the washing tub 6 in both directions is performed again for the set time t2. (S8, S9)

As described above, the washing water flow forming step, the forging step, and the filtering water flow forming step are sequentially performed. In the washing water flow forming step, the forging step and the filtering water flow forming step are performed twice .

That is, the washing process is performed in the order of the washing water forming step, the deburring step, the filtering water flow forming step, the deburring step, and the filtering water flow forming step, and this process can be repeated for the set number of times N2. In the embodiment, the set number of times N2 is two, for example.

5 is a graph comparing and measuring the amount of foreign matter remaining in the washing water after performing a washing stroke according to various experimental models.

Experiment 1 is a model in which a lower inlet portion for introducing wash water is formed on the lower surface of the lint filter, and a check valve is provided on the lower inlet portion in Experiment 1. In Experiment 2, a lower entrance portion for introducing wash water is formed on the lower surface of the lint filter, Is not provided. Experiment 3 is a model in which a side inlet portion into which wash water flows into left and right sides of a lint filter and a check valve is provided in a side inlet portion. Experiment 4 is the same model as Experiment 3, Method is applied.

As shown in FIG. 5, in Experiment 4, in which the side inlet portion was formed on the side surface of the lint filter and the filtering water flow was formed to facilitate the inflow of the washing water into the side inlet portion, Respectively.

Therefore, the side inlet 80 is formed on the side surface of the lint filter 60 and the washing water is flowed along the inner wall of the washing tub 6 by rotating the washing tub 6 in both directions, , The greater the amount of wash water is passed through the lint filter 60, so that the filtering efficiency can be increased.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and range of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

The control method of the laundry processing apparatus according to the present invention is characterized in that the washing tub is alternately rotated clockwise and counterclockwise to cause the washing water to flow along the inner wall of the washing tub, Can be introduced through the part. Therefore, since a large amount of wash water passes through the lint filter and foreign matters are filtered, the filtering efficiency can be improved.

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.

3 is a front view of a lint filter according to an embodiment of the present invention.

4 is a flowchart showing a control method of a washing machine according to an embodiment of the present invention.

5 is a graph comparing and measuring the amount of foreign matter remaining in the washing water after performing a washing stroke according to various experimental models.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

60: Lint filter 70: Check valve

80: Side inlet portion

Claims (7)

A plurality of discharge holes are formed on the front surface of the washing tub, and a plurality of discharge holes are formed on the left and right sides of the washing tub, the discharge holes being vertically spaced apart from each other by a predetermined distance, A control method for a laundry processing apparatus including a lint filter in which a check valve, which is an elastic material of a long rectangular panel shape, is installed, A washing water flow forming step of rotating the washing tub in one direction to form alpha water flow; A pulping step for alternately rotating the pulsator clockwise and counterclockwise to cause the pulley to unwind; And And a filtering water flow forming step of alternately rotating the washing tub in clockwise and counterclockwise directions to flow wash water along the inner wall of the washing tub to allow wash water to flow into the inflow hole of the lint filter, (a) the washing water flow forming step is performed by repeating a first set number of times (N1) (b) thereafter the forging step is performed, (c) Thereafter, the filtering water flow forming step is performed for a first set time t2, (d) thereafter, the forging step is performed again, (e) Thereafter, the filtering water flow forming step is performed again for the second set time t2, The steps (a) through (e) The second set number of times N2 is successively repeated, In the filtering water flow forming step, Wherein the washing water is supplied to the washing tub through the washing tub, and the laundry washing tub is rotated at a speed lower than the rotational speed of the washing tub in the washing water flow forming step. The method according to claim 1, Wherein the first set number of times (N1) is four times. The method according to claim 1, Wherein the first set time (t2) is 60 seconds. The method according to claim 1, Wherein the second set number of times (N2) is two times. The method according to claim 1, The first set number of times N1 is four times, The first set time t2 is 60 seconds, Wherein the second set number of times (N2) is two times. delete delete

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