KR101087113B1 - Method for washing and Washing machine - Google Patents

Abstract

Laundry methods and washing machines are provided. Washing method according to an embodiment of the present invention, the step of supplying the washing water in the drum containing the cloth, the step of rotating the drum in a predetermined direction by repeatedly dropping the cloth, and accelerated and decelerated the drum Attaching the fabric to the drum and then dropping the fabric.

Laundry motion, drum motion

Description

Laundry method and washing machine {Method for washing and Washing machine}

The present invention relates to a washing method and a washing machine, and more particularly, to a washing method and a washing machine with improved washing performance.

In general, a washing machine is a device that cleans through a process such as washing, rinsing, and dehydrating to remove contamination on clothes, bedding, etc. (hereinafter, referred to as 'po') by using water, detergent, and mechanical action.

Washing machines are classified into agitator type, pulsator type and drum type washing machines.

The stirring type washes by rotating the laundry rod rising to the left and right in the center of the washing tank, and the vortex type washes by rotating the disk-shaped rotary blade formed at the lower part of the washing tank to the left and right by using friction force between the water flow and the cloth, and the drum type inside the drum. Add water, detergent and cloth to wash the drum by rotating it.

The drum washing machine is equipped with a tub in which washing water is accommodated inside a cabinet forming an exterior, a drum in which a cloth is accommodated is disposed inside the tub, and a motor for rotating the drum is mounted on the rear side of the tub, and the tub is mounted on the motor. Drive shaft connected to the back side of the drum is penetrated through. The inside of the drum is equipped with a lifter to raise the gun when the drum rotates.

The drum washing machine is lifted up by a lifter mounted inside the drum when the drum is rotated, and the washing is performed by falling and tumbling after being attached and rotated in the drum. In addition to the tumbling motion, various washing methods are required to improve washing performance.

The problem to be solved by the present invention is to provide a washing method and a washing machine with improved washing performance.

Still another object of the present invention is to provide a washing method and a washing machine capable of evenly mixing foam in a washing stroke or a rinsing stroke.

Still another object of the present invention is to provide a washing method and a washing machine in which all the cloths can be uniformly contacted with the washing water during the washing stroke or the rinsing stroke.

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

In order to achieve the above object, the washing method according to an embodiment of the present invention, supplying the washing water in the drum containing the cloth, the step of repeatedly rotating the drum while rotating the drum in a predetermined direction, and Accelerating and decelerating the drum to attach and drop the cloth inside the drum.

In order to achieve the above object, in the washing method according to an embodiment of the present invention, in the washing or rinsing stroke of the drum washing machine, the drum is rotated so that the carriage in the drum is attached to the inside of the drum to rotate, Decelerating and dropping the cloth inside the drum; and accelerating the drum to rotate the cloth stuck inside the drum.

In order to achieve the above object, the washing machine according to an embodiment of the present invention, the drum is inserted and rotated, the driving unit for rotating the drum, and the driving unit rotates the drum in a predetermined direction during the washing or rinsing stroke And a control unit for performing a first motion of repeatedly dropping the cloth and the driving unit to accelerate and decelerate the drum to attach and drop the cloth inside the drum.

Specific details of other embodiments are included in the detailed description and the drawings.

According to the washing method and the washing machine of the present invention has one or more of the following effects.

First, there is an advantage that the washing performance is improved by avoiding a cloth that is not in contact with the wash water when washing or rinsing a large amount of cloth.

Second, there is also an advantage that the washing variation is reduced when washing or rinsing a large amount of cloth by strengthening the flow of the cloth.

Third, there is also an advantage that the washing performance is improved by squeezing out the contamination of the fabric.

Fourth, there is also an advantage that the rinsing performance is improved by discharging like a residual detergent of the fabric.

Fifth, the user can visually check the flow of the gun.

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

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for explaining a washing method and a washing machine according to embodiments of the present invention.

1 is a perspective view showing a washing machine according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the washing machine shown in FIG.

The washing machine according to an embodiment of the present invention includes a cabinet 110 forming an exterior, a tub 120 disposed inside the cabinet and supported by the cabinet, and a drum 130 inserted into the tub and rotating with a cloth inserted therein. ), A driving unit 140 for applying torque to the drum to rotate, and a control unit 115 for receiving a user input and controlling the overall operation of the washing machine.

The cabinet 110 includes a cabinet body 111, a cabinet cover 112 disposed on the front surface of the cabinet body and coupled thereto, and a top plate 116 coupled to the cabinet body. The cabinet cover 112 includes a cloth entry hole 114 formed to allow entry and exit of the gun, and a door 113 disposed to be rotatable from side to side to enable opening and closing of the gun entry hole.

The washing machine according to an embodiment of the present invention further includes a gasket 121 disposed between the inlet of the drum 130 and the cloth entry hole 114. The gasket 121 mitigates the shock transmitted to the door 113 when the drum 130 rotates, and prevents the wash water in the tub 120 from leaking to the outside.

Tub 120 is buffered by a spring (not shown) and a damper (not shown) inside the cabinet 110. Tub 120 receives the wash water at the time of washing. The drum 130 is disposed inside the tub 120.

The drum 130 is rotated by inserting a cloth. The drum 130 is formed with a plurality of holes so that the wash water passes, the lifter 135 for lifting the bag to a certain height when the drum is rotated may be disposed. The drum is rotated by the driving unit 140.

The driving unit 140 rotates the drum 130. The driving unit 140 includes a motor and a switching element for controlling the same. The driver 140 is controlled by the controller 115 to implement various motions.

The cabinet 110 has a water supply valve 153 through which washing water is introduced from an external water source, a water supply hose 151 for guiding the washing water introduced into the washing water supply valve to the detergent box 152, and a detergent or fabric softener. It is preferable that a detergent box 152 for accommodating detergent and washing water and detergent is mixed, and a water supply bellows 154 for introducing washing water mixed with detergent in the detergent box into the drum 130. .

The water supply valve 153, a water supply hose 151, and a water supply bellows 154 may be referred to as a water supply device.

In addition, the cabinet 110 has an outflow lake 162 through which the wash water in the tub 120 flows out, a pump 163 through which the wash water flows out, and a circulation passage 164 for guiding the wash water to the drum 130. And a nozzle 165 provided in the gasket 121 and introducing the washing water into the drum 130, and a drain passage 173 guiding the washing water to the outside.

It is called a circulation device including an outflow lake 162, a pump 163, a circulation passage 164, and a nozzle 165, and includes a drainage lake 162, a pump 163, and a drainage passage 173. do. The outflow lake 162 and the pump 163 may be provided separately for each circulation device or drainage device.

The controller 115 receives a user input, controls the overall operation of the washing machine, and displays a current operation state. The controller 115 may be provided at an upper portion of the cabinet cover 112. The controller 115 may include an operation button for receiving a user input and a display device such as a microcomputer and a display for controlling the operation of the washing machine.

3 is a view showing a pressing motion in the laundry method according to an embodiment of the present invention.

In the washing method according to an embodiment of the present invention, the pressing motion accelerates the drum 130 at a high speed during a washing stroke or a rinsing stroke so that the fabric 10 in the drum is attached to the drum to rotate and then decelerates the drum. This is a rapid cycle of the artillery dropping inside the drum.

In FIG. 3A, when the drum 130 rotates at a high speed, the fabric 10 in the drum is attached to the drum and rotates. When the drum 130 rotates about 100 RPM, the fabric 10 is compressed and rotated inside the drum by centrifugal force. The fabric 10 is preferably rotated for an appropriate speed and time to evenly spread and rotate inside the drum.

At this time, the washing water may flow from the water supply bellows 154 or the nozzle 165 and may be evenly sprayed onto the fabric. That is, the washing water is supplied from the outside during the pressing motion in the packing step, or the washing water is circulated in the pressing motion during the rinsing or washing step so that the fabric is evenly soaked.

In FIG. 3B, when the drum 130 is decelerated, the fabric 10 falls inside the drum. When the speed is reduced to such a degree that the centrifugal force does not act on the fabric 10, the fabric falls by gravity and the drum rotates so that the fabric flows and is evenly mixed.

In this case as well, the washing water may flow from the water supply bellows 154 or the nozzle 165 to be evenly sprayed onto the fabric.

In FIG. 3C, when the drum 130 is completely decelerated, the cloth 10 is collected at the drum center. When the drum 130 rotates about 50 RPM, the fabric 10 rolls to the center of the drum. As described above, the washing water may flow from the water supply bellows 154 or the nozzle 165 to be evenly sprayed onto the fabric.

Afterwards, the drum 130 is accelerated again so that the fabrics 10 gathered as shown in FIG. 2 (a) are evenly spread in the drum and rotated.

Each step described above is preferably repeated at a fast cycle. It is preferable that the period of acceleration and deceleration is repeated from 1 second to 4 seconds. The time to accelerate from 50 rpm to 100 rpm is 2 seconds or less, preferably approximately 1.2 seconds. The time to decelerate from 100 rpm to 50 rpm is 1 second or less, preferably approximately 0.5 seconds.

4 is a view illustrating various drum motions of a washing machine according to an embodiment of the present invention.

FIG. 4A illustrates a motion in which the driving unit 140 rotates the drum 130 in a predetermined direction, lifted from the lowest position of the carriage drum, and falls about half of the drum height (hereinafter referred to as “tumbling motion”). Is). In the tumbling motion, the drum 130 rotates continuously at about 45 rpm, and the cloth in the drum 130 is washed by the impact force and the friction force.

4B illustrates a motion in which the driving unit 140 rotates the drum 130 in a predetermined direction and lifts it from the lowest position of the carriage drum and falls at a height not exceeding half the height of the drum (hereinafter referred to as “rolling”). Motion ". In the rolling motion, the drum 130 rotates continuously at about 40 rpm or less, and the cloth in the drum 130 falls down and is washed by the stretching force and the friction force.

4C illustrates a motion in which the driving unit 140 rotates the drum 130 in different directions to lift at the lowest position of the carriage drum and fall around half of the drum height (hereinafter referred to as "swing motion"). Is called). In swing motion, the drum 130 rotates in different directions at approximately 40 rpm or less. The cloth in the drum 130 falls as if rolling, and is washed by the stretching force and the friction force.

4D illustrates a motion in which the driving unit 140 rotates the drum 130 in a predetermined direction, lifted from the lowest position of the carriage drum, and falls near the top of the drum (hereinafter referred to as "step motion"). )to be. In step motion, the drum 130 rotates above about 60 rpm to raise the gun. After the carriage rises above half the height of the drum, the driving unit 140 brakes the drum 130 and falls near the top of the carriage drum. After the dropping of the gun drum 130 is rotated in the same direction to raise the gun. The cloth in the drum 130 is washed by the high impact force using the drop.

FIG. 4E illustrates a pressing motion in which the driving unit 140 changes the speed of the drum 130 at a rapid cycle to collect and spread the cloths. In the pressing motion, the drum 130 changes at a rapid cycle at a speed of about 100 rmp at about 50 rpm, and repeats the capture and fall inside the drum. The flow of the cloth is enhanced to reduce the washing variation and to contact the washing water evenly. In addition, when the fabric sticks inside the drum, the washing water soaked in the fabric is discharged like a squeeze, so that the contamination of the fabric is squeezed out during washing, and the residual detergent of the fabric is squeezed out during rinsing. In addition, the user can visually check the flow of the fabric by repeatedly attaching and falling inside the drum drum.

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

When washing is started, the quantity of cloth contained in the drum 130 is sensed (S410). When a user selects a course through an operation button of the control unit 115 and inputs a washing start button, the microcomputer of the control unit 115 starts washing to the course and senses a quantity of water.

Dose detection can be implemented in a variety of ways or apparatus. In an embodiment of the present invention, the drive unit 140 rotates the drum 130 at a constant speed for a predetermined time, and then measures the deceleration time to detect a quantity of air. The longer the deceleration time of the drum 130, the higher the level of the quantity of the gun. The quantity is calculated by the microcomputer of the control unit 115.

Initial water supply is performed (S420). When the water supply valve 153 is opened and the washing water is supplied from the outside, the washing water is guided to the detergent box 152 along the water supply lake 151 and mixed with the detergent, and then the drum 130 is supplied by the water supply bellows 154. Flows into.

While the water supply is completed or while watering is carried out (S430). The packing core is a process of flowing the cloth so that the cloth contained in the drum 130 is wetted with the wash water supplied into the tub 120. In general, the cladding is performed by a tumbling motion, but the cladding may be performed by the above-described compression motion. When the foaming core is performed by the pressing motion, it is preferable that washing water is introduced from the water supply bellows 154 or the nozzle 165 and sprayed onto the fabric.

It is determined whether the quantity is more than the set range (S440). It is determined whether the detected quantity is above a certain level to determine the drum motion during the washing stroke.

If the amount is more than the set range, the general motion is performed (S450), the compression motion is performed (S460). General motion refers to rolling motion, swing motion and step motion in addition to the tumbling motion of FIG. 3.

If there is a large amount of water, repeating the normal motion will cause the gun to clump and prevent the gun from flowing. Therefore, the general motion is performed for a period of time and the compression motion is performed. In addition, in the case of a small quantity, even the low rpm stuck to the inside of the drum, the compression motion is not performed well.

The compression motion causes the drum 130 to change speed at a rapid cycle, thereby collecting and spreading the cloth, thereby causing the cloth to flow. The flow of the cloth is enhanced to reduce the washing variation and to contact the washing water evenly. In addition, when the fabric sticks inside the drum, the washing water soaked in the fabric is discharged like a squeeze, so that the contamination of the fabric is squeezed out during washing, and the residual detergent of the fabric is squeezed out during rinsing. In addition, the user can visually check the flow of the fabric by repeatedly attaching and falling inside the drum drum.

Depending on the quantity and the washing course, the compression motion during the washing stroke is preferably performed for about 10 minutes.

It is desirable to circulate the wash water in the compression motion so that the fabric is evenly soaked. In the compression motion, the pump 163 is operated to circulate the washing water flowing out of the outflow lake 162 along the circulation passage 164 to flow into the drum 130 through the nozzle 165.

It is determined whether the normal motion and the compression motion are performed n times (S470). Repeat the normal and compression motions performed n times so that the fabric flows to eliminate wash variation. The number of repetitions n depends on the course and the quantity chosen.

When the normal motion and the compression motion is performed n times, simple dehydration is performed (S490). Simple dehydration is a process of discharging the wash water used for washing to the outside.

If the quantity is within the setting range, the general motion is performed (S480), and simple dehydration is performed (S490).

Until the simple dehydration step (S490) described above is a general washing stroke, and performs the water supply step (S420) again to start the rinsing stroke. In this case, the wash water supplied is water in which detergent is not mixed and the fabric softener may be mixed.

Depending on the volume and the washing course, the compression motion during the rinsing stroke is preferably performed for about 3 minutes.

In the rinsing stroke, it is preferable that the above-described steps are repeated, but the execution time of each step or the number of n repetitions can be changed.

6 is a view showing the rotational speed of the drum with time in the washing method according to an embodiment of the present invention.

6 is an example when the normal motion is a tumbling motion.

In normal motion, the drum rotates continuously at about 45 rpm. In the compaction motion, the drum changes rapidly at about 50 rpm at about 50 rpm.

It is preferable that the period of acceleration and deceleration is repeated from 1 second to 4 seconds. The time to accelerate from 50 rpm to 100 rpm is 2 seconds or less, preferably approximately 1.2 seconds. The time to decelerate from 100 rpm to 50 rpm is 1 second or less, preferably approximately 0.5 seconds.

This general motion and the compression motion may be repeated in the washing stroke or the rinsing stroke.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. 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 indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

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

2 is a cross-sectional view of the washing machine shown in FIG.

3 is a view showing a pressing motion in the laundry method according to an embodiment of the present invention.

4 is a view illustrating various drum motions of a washing machine according to an embodiment of the present invention.

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

6 is a view showing the rotational speed of the drum with time in the washing method according to an embodiment of the present invention.

Claims (22)

Cabinet 110; A drum (130) rotatably provided in the cabinet; And A water supply device for supplying washing water to the drum 130 from an external water source; A circulator for supplying water discharged from the drum 130 back to the drum 130; And It is provided with a control unit 115 for controlling the drive of the drum 130, The controller 115 controls the drum 130 to rotate by two or more drum 130 driving motions, and at least one of the two or more motions Accelerating the drum 130 at a predetermined speed to attach the inner wall of the drum 130 by the carriage centrifugal force and decelerating the drum 130 to decelerate the drum 130. ), And the control unit 115 may include: a step in which the foam in the drum 130 is attached to the inner wall of the drum 130 or a drop in the drum 130 in the inner wall of the drum 130. Washing apparatus characterized in that to supply the wash water into the drum (130). The method of claim 1, When the laundry in the drum 130 is attached to the inner wall of the drum 130 or when the foam in the drum 130 falls from the inner wall of the drum 130 to supply the washing water into the drum 130 The control unit 115 supplies the water discharged from the external water source or the drum 130 back to the drum (130). The method of claim 1, When the laundry in the drum 130 is attached to the inner wall of the drum 130 or when the foam in the drum 130 falls from the inner wall of the drum 130 to supply the washing water into the drum 130 The control unit 115 supplies the wash water through the water supply device or the circulation device. The method according to claim 2 or 3, The control unit (115) is characterized in that when the water supply to the drum 130, the washing apparatus, characterized in that for supplying water toward the inside of the drum (130). In the control method of the laundry machine having a rotatable drum (130), Accelerating the drum (130) at a predetermined speed and attaching the drum (130) to an inner wall of the drum (130) by centrifugal force; And Decelerating the drum 130 so that the gunner in the drum 130 falls from the inner wall of the drum 130, The washing fluid is supplied into the drum 130 in a state in which the foam in the drum 130 is attached to the inner wall of the drum 130 or the foam in the drum 130 falls off the inner wall of the drum 130. How to control the washing machine. The method of claim 5, In the case where the foam in the drum 130 is attached to the inner wall of the drum 130 or when the foam in the drum 130 falls from the inner wall of the drum 130, the washing water is supplied to the drum 130. Control method of a laundry machine, characterized in that for supplying water discharged from the water source or from the drum (130) back to the drum (130). The method of claim 6, When water is supplied to the drum 130, the control method of the washing apparatus, characterized in that the water supply toward the fabric inside the drum (130). delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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