KR20110053094A - Method for washing and washing machine - Google Patents

Abstract

PURPOSE: A washing method and a washing apparatus are provided to improve the washing performance through various motions in washing and cleaning of a laundry. CONSTITUTION: A control unit performs rolling motion(S310), and the cloth within a drum rises up in the rolling motion. The cloth is dropped down from the height not higher than the half height of the drum. The drum performs tumbling motion(S320), and the cloths rises up in the tumbling motion. The control unit performs filtration motion(S330), and washing water is supplied to the drum in the filtration 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 to improve the washing performance and to reduce the load.

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, a washing method according to an embodiment of the present invention, the rolling step of rotating the drum in a predetermined direction so that the bubble in the drum rises to fall at a height not more than half of the drum height; A tumbling step of rotating the drum in a predetermined direction such that the gun rises and falls near half of the drum height; And a filtration step in which the washing water is supplied into the drum and the drum rotates so that the cloth is attached to the drum.

In order to achieve the above object, a washing method according to an embodiment of the present invention, the drum is rotated so that the fall in the drum rises; And increasing the speed of the drum so that the drum is attached to the drum and washing water is supplied into the drum.

In order to achieve the above object, a washing machine according to an embodiment of the present invention, the tub is accommodated wash water; A drum disposed in the tub and containing the cloth and rotatable; A driving unit rotating the drum to rotate the drum gradually and then rapidly rotating the drum to raise and drop the cloth so that the cloth adheres to the drum; And a pump for circulating the washing water in the tub and supplying the washing water into the drum when the drum rotates so that the cloth is attached to 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 to improve the washing performance by performing a variety of motion during washing or rinsing.

Second, the speed of the drum gradually increases, and it also has the advantage of reducing the load of the driving unit by performing various motions.

Third, there is also an advantage to ensure the washing and rinsing performance when washing a large amount of washing.

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, only the embodiments are to make the disclosure of the present invention complete, and common 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 of FIG.

Washing machine 100 according to an embodiment of the present invention, the cabinet 111 forming the appearance, the door 112 for opening and closing one side of the cabinet to enter and exit the inside of the cabinet, and disposed inside the cabinet is supported by the cabinet The tub 122, the drum disposed inside the tub and is inserted into the rotating drum 124, the drive unit 113 for applying torque to the drum to rotate, the detergent box 133 to accommodate the detergent, and user input It includes a control panel 114 that accepts and displays the washing machine status.

The cabinet 111 has a cloth access hole 120 to allow the cloth to enter and exit. The door 112 is rotatably coupled to the cabinet 111 to enable the opening and closing of the gun entrance hole 120. The cabinet 111 is provided with a control panel 114. The cabinet 111 is provided with a detergent box 133 to be withdrawn.

Tub 122 is buffered by the spring 115 and the damper 117 in the cabinet 111. Tub 122 receives the wash water. The drum 124 is disposed inside the tub 122.

The drum 124 is rotated by receiving the cloth. The drum 124 is formed with a plurality of through holes so that the wash water passes. The inner wall of the drum 124 may be a lifter 125 for lifting the gun to a certain height when the drum rotates. The drum rotates by receiving the rotational force by the drive unit 113.

The gasket 128 seals between the tub 122 and the cabinet 111. The gasket 128 is disposed between the inlet of the tub 122 and the gun entrance hole 120. The gasket 128 mitigates the shock transmitted to the door 112 when the drum 124 rotates and at the same time prevents the wash water in the tub 122 from leaking to the outside. The gasket 128 may be provided with a circulation nozzle 127 for introducing washing water into the drum 124.

The driving unit 113 rotates the drum 124. The driving unit 113 may rotate the drum 124 at various speeds or directions. The driving unit 113 is composed of a motor, a switching element for controlling the same, a clutch, and the like.

Detergent box 133 is a detergent such as laundry detergent, fabric softener or bleach is accommodated. Detergent box 133 is preferably provided to be pulled out on the front of the cabinet (111). The detergent in the detergent box 133 is mixed with the washing water when the washing water is supplied and introduced into the tub 122.

In the cabinet 111, a water supply valve 131 for controlling the inflow of the washing water from an external water source, a water supply passage 132 through which the washing water introduced into the water supply valve flows into the detergent box 133, and the detergent box 133 It is preferable that a water supply pipe 134 for introducing washing water mixed with detergent into the tub 122 is provided.

The cabinet 111 has a drain pipe 135 through which the wash water in the tub 122 flows out, a pump 136 for flowing out the wash water in the tub, a circulation passage 137 for circulating the wash water, and a wash water drum ( 124, the circulation nozzle 127 flowing into the water, and the drain flow path 138 for washing water is preferably provided to the outside. According to an embodiment, the pump 136 may be provided as a circulation pump and a drain pump, and may be connected to the circulation channel 137 and the drain channel 138, respectively.

The control panel 114 includes an input unit 114b for receiving various operation commands such as a washing course selection, an operation time and a reservation for each stroke, and a display unit 114a for displaying an operating state of the washing machine 100. It may be provided.

The washing course includes a lingerie / wool course, a boiling course, a speed wash course, a functional clothing course, and a quiet course depending on the type and function of the fabric. The operation of the washing machine is largely divided into a washing stroke, a rinsing stroke, and a dehydrating stroke, and water, washing, rinsing, draining, dehydration or drying are performed in each stroke.

3 is a block diagram of a washing machine according to an embodiment of the present invention.

The controller 141 controls the overall operation of the washing machine according to the operation command received by the input unit 114b. The control unit 141 is preferably provided in the control panel 114. It may be composed of a microcomputer and other electronic components for controlling the operation of the washing machine. The controller 141 determines whether or not the operation of each stroke is progressed or whether the water supply, washing, rinsing, drainage, dehydration and drying operations, time, number of repetitions, etc. are performed according to the washing course selected by the user. do.

The controller 141 controls the water supply valve 131, the driver 113, and the pump 136 according to the selected course or other operation command.

4 is a view showing the entire stroke of the washing machine according to an embodiment of the present invention.

The laundry administration 210 is a stroke for removing contamination from the cloth by rotating the drum 124 after wetting the laundry water mixed with the laundry detergent in the cloth. In the laundry method according to an embodiment of the present invention, the laundry administration 210 proceeds in the order of water supply 211, laundry 212, drainage 213, and simple dewatering 214.

When the washing administration 210 is started, the control unit 141 displays the washing icon on the progress indication of the display unit 114a to indicate that the washing administration is started.

The water supply 211 supplies washing water into the tub 122 from an external water source. When the control unit 141 opens the water supply valve 131 during the water supply 211, the washing water flows from the external water source to the detergent box 133 through the water supply passage 132. In the detergent box 133, the washing water is mixed with the laundry detergent and introduced into the tub 122 through the water supply pipe 134. Washing water in the detergent box 133 may be mixed with bleach.

In the water supply 211, the washing machine mixed with the laundry detergent is evenly soaked in the cloth so that the control unit 141 drives the driving unit 113 so that the drum 124 rotates. The water supply 211 proceeds until the wash water fills up to the target water level, and the target water level is determined by the controller 141 according to the amount of cloth measured below the water supply 211 (hereinafter, referred to as 'amount') or a selected course. do.

The water level of the wash water is preferably measured by a water level detection device (not shown). Amount can be measured in various ways. In this embodiment, after the driving unit 113 rotates the drum 124 at a constant speed for a predetermined time, the control unit 141 measures the deceleration time. The longer the deceleration time of the drum 124, the higher the level of the quantity of the gun.

When the wash water flows into the tub 122 to the target water level, the controller 141 blocks the water supply valve 131 to finish the water supply 211.

The laundry 212 rotates the drum 124 containing the cloth soaked with the washing water mixed with the laundry detergent. During washing 212, the control unit 141 controls the drive unit 113 to rotate the drum 124 at various speeds or directions to apply mechanical force such as stretching force, friction force, and impact force to remove contamination of the cloth. In order to prevent overheating of the driving unit 113 during washing 212, the control unit 141 may allow the driving of the driving unit 113 to be rested for several seconds to several minutes.

Steam may be injected into the drum 124 during the washing 212 according to the washing course or the user's choice. When washing 212, the control unit 141 may operate the pump 136 to circulate the washing water along the circulation passage 137 to flow into the drum 124 through the circulation nozzle 127.

The drain 213 discharges the washing water in the tub 122 to the outside of the cabinet 111. The control unit 141 operates the pump 136 to discharge the washing water in the tub 122 to the outside along the drain passage 138 at the time of drainage 214.

The simple dewatering 214 is to rotate the drum 124 at high speed so that the wash water soaked in the cloth exits. When the simple dewatering 214, the control unit 141 drives the driving unit 113 to rotate the drum 124 at high speed so as to adhere to the inner wall of the carriage drum 124 and to dehydrate the bag by centrifugal force. Since the simple dehydration 214 does not need to be dehydrated to the extent that the fabric is dried, the drum 124 is preferably rotated at 108 rpm, which is a speed sufficient to rotate against the inner wall of the carriage drum 124.

In the simple dewatering 214, the control unit 141 intermittently operates the pump 136 so that the washing water in the tub 122 is discharged to the outside along the drainage passage 138.

The rinsing stroke 220 is a stroke for removing the residual laundry detergent of the fabric by rotating the drum 124 after wetting the wash water mixed with the fabric softener. In the washing method according to an embodiment of the present invention, the rinsing stroke 220 is in the order of water supply 221, rinsing 222, drain 223, simple dewatering 224, water supply 225, rinsing 226 Proceed. In this embodiment, the rinses 222 and 226 are repeated twice and may not be repeated or may be repeated several times depending on the embodiment.

When the rinsing stroke 220 is started, the control unit 141 displays a rinsing icon on the progress display of the display unit 114a to indicate that the rinsing stroke is started.

The water supply 221 supplies the washing water into the tub 122 from the external water source similarly to the water supply 211 of the washing stroke 210 described above. When the control unit 141 opens the water supply valve 131 at the water supply 221, the washing water flows into the tub 122 from the external water source through the water supply passage 132 and the water supply pipe 134. The fabric softener in the water supply 221 is not mixed with the wash water, and the fabric softener in the last water supply 224 of the rinsing stroke 220 to be described later is preferably mixed with the wash water. The control unit 141 drives the driving unit 113 so that the washing water is evenly wetted with the cloth, and the drum core 124 rotates.

Rinse 222 is to rotate the drum 124 is accommodated in the cloth soaked with wash water. During rinsing 222, the control unit 141 controls the drive unit 113 to rotate the drum 124 at various speeds or directions to apply mechanical force such as stretching force, friction force, and impact force to remove residual laundry detergent and contamination of the cloth. do. In the rinsing 222, the control unit 141 may operate the pump 136 to circulate the washing water along the circulation passage 137 to flow into the drum 124 through the circulation nozzle 127.

The drain 223 discharges the washing water in the tub 122 to the outside of the cabinet 111, similarly to the drain 213 of the washing stroke 210 described above.

The simple dewatering 224 rotates the drum 124 at a high speed so that the washing water soaked in the cloth exits like the simple dewatering 214 of the washing stroke 210 described above.

The water supply 225 supplies washing water from the external water source into the tub 122 in the same manner as the water supply 221 described above in order to repeat the rinsing 226 again. Washing water in the water supply 225 is preferably mixed with the fabric softener in the detergent box 133 is introduced into the tub 122. When the water supply 225, the washing water mixed with the fabric softener is evenly soaked in the fabric, and the control unit 141 drives the driving unit 113 so that the drum 124 rotates.

The rinse 226 rotates the drum 124 containing the cloth in which the washing water is soaked, similar to the rinsing 222 described above. However, the washing water mixed with the fabric softener during the rinsing (226) acts on the fabric to soften the fabric.

The dehydration stroke 230 is a stroke for dewatering the gun by rotating the drum 124 at high speed. In the laundry method according to an embodiment of the present invention, the dehydration stroke 230 includes a drainage 231, a podispersion 232, and a main dewatering 233.

When the dehydration stroke 230 is started, the control unit 141 displays the dehydration icon on the progress display of the display unit 114a to indicate that the dehydration stroke is started.

The drain 231 discharges the washing water in the tub 122 to the outside of the cabinet 111, similarly to the drain 213 of the washing stroke 210 or the drain 223 of the rinsing stroke 220.

Foam dispersion 232 is a drum 124 to disperse the cloth by repeating the acceleration and deceleration. When washing 212 or rinsing 222, the fabric is deviated to one side due to entanglement of the fabric and the like, causing an eccentricity in which one side becomes heavy based on the center of the drum. Eccentricity of the gun can cause noise and vibration during dehydration (233), so that the gun is evenly distributed.

When dispersing 232, the control unit 141 measures the amount of air based on the deceleration time of the drum when decelerating the drum 124, and measures the eccentricity based on the amount of change in the rotational speed of the drum after accelerating the drum 124. do.

As described above, the quantity is calculated by measuring the deceleration time when the controller 141 decelerates the drum 124. The longer the deceleration time of the drum 124, the higher the level of the quantity of the gun. According to an exemplary embodiment, the controller 141 may calculate an amount of fuel by measuring an acceleration time when accelerating the drum 124.

The eccentric amount is calculated as the change amount with respect to the speed of the drum after the control unit 141 accelerates the drum 124. The speed of the drum 124 is calculated by using a Hall sensor or by measuring a current flowing through the motor of the driving unit 113.

The controller 141 determines whether the eccentricity is within the allowable value by the difference between the speed change amount of the drum 124 and the reference speed change amount. The reference speed change depends on the quantity. The controller 141 stores an eccentric amount table for the reference speed change amount according to the amount of quantity.

The controller 141 may accelerate or decelerate the drum 124 according to the amount of eccentricity. That is, the controller 141 may adjust the acceleration for accelerating or decelerating the drum 124 according to the amount of eccentricity. The controller 141 may stop the drum 124 when the eccentricity of the cloth is excessive.

The controller 141 repeats accelerating and decelerating the drum 124 according to the amount of eccentricity. The controller 141 continuously accelerates and decelerates the drum 124 when the amount of eccentricity is greater than or equal to the allowable value. If the eccentricity is more than the allowable value and the acceleration and deceleration of the drum 124 is continuously repeated, the controller 141 may stop this. That is, when the acceleration and deceleration of the drum 124 continues to be repeated more than the allowed number of times, the controller 141 preferably stops the drum 124 after notifying that the display unit 114a has an abnormality. If the amount of eccentricity is within the allowable value, the control unit 141 stops the podis dispersion 232 and performs the main dehydration 233.

The main dewatering water 233 is to rotate the drum 124 at high speed so that the washing water soaked in the cloth exits. When the control unit 141 rotates the drum 124 at high speed during the main dehydration 233, the control unit 141 is attached to the inner wall of the carriage drum 124 and rotated to dehydrate the gun by centrifugal force. The drum 124 during the main dewatering 233 may rotate at a speed of 1000 rpm or more, which is faster than the simple dewatering 214 of the washing stroke 210 or the simple dewatering 224 of the rinsing stroke 220.

When the main dewatering 233, the control unit 141 intermittently operates the pump 136, the washing water in the tub 122 is preferably discharged to the outside along the drain passage (138).

After the main dehydration 233, drying may be performed to supply hot air into the drum 124 to dry the fabric.

5 is a view showing filtration in the laundry method according to an embodiment of the present invention.

Filtration (filtration) is when the drum 124 is rotated to supply the washing water mixed with the laundry detergent in the drum, the washing water penetrates the cloth and the contamination is removed.

The controller 141 controls the driving unit 113 to rotate the drum so that the cloth L is attached to the drum 124, and the controller 141 operates the pump 136 to open the washing water circulation path 137. Circulate accordingly.

The drum 124 is preferably rotated at a moderately high speed so that the foam L does not form too many bubbles of 1G or more so as to stick in the drum. The drum 124 is preferably rotated about 150 rpm.

During filtration, the pump 136 acts to circulate the wash water mixed with the laundry detergent in the tub 122 along the circulation passage 137 and is supplied into the drum 124 through the circulation nozzle 127. The circulation nozzle 127 is preferably sprayed or sprayed wash water into the drum (124).

6 is a view showing a washing method according to an embodiment of the present invention.

Rolling motion is performed at the washing 212 of the washing stroke 210 or the rinsing 222, 226 of the rinsing stroke 220 (S310).

The rolling motion is a motion in which the driving unit 113 rotates the drum 124 in a predetermined direction, lifted from the lowest position of the carriage drum, and falls at a height not exceeding half the height of the drum. When the driving unit 113 continuously rotates the drum 124 at about 40 rpm or less, the carriage within the drum 124 rises over the lifter 125 and falls as if rolling at a height not exceeding half the height of the drum 124. . The cloth in the drum 124 is washed by the stretching force and the friction force.

In the rolling motion, the speed of the drum 124 is gradually increased to perform the tumbling motion (S320).

The tumbling motion is a motion in which the driving unit 113 rotates the drum 124 in a predetermined direction, lifted from the lowest position of the carriage drum, and falls around half the height of the drum. When the driving unit 113 continuously rotates the drum at about 45 rpm, the carriage in the drum 124 is lifted up by the lifter 125 and then raised about half of the height of the drum 124. The cloth in the drum 124 is washed by the impact force and the friction force.

As the rolling motion is performed in the tumbling motion, the speed of the drum 124 is gradually increased and the drop height of the gun is increased. The speed of the drum 124 is gradually increased and the tumbling motion is performed to reduce the load of the driving unit 113.

In the tumbling motion, the speed of the drum is gradually increased to perform the filtration (S330).

As described above, when the drum 124 rotates to supply the laundry with mixed laundry detergent to the drum, the washing water penetrates the cloth and dirt is removed.

As the filtration is performed in tumbling motion, the speed of the drum 124 is gradually increased, and the drop height of the gun is increased, and the gun is attached to the drum. The speed of the drum 124 is gradually increased and the filtration is performed to reduce the load of the driving unit 113.

The rolling motion, the tumbling motion, and the filtration described above may be performed as a single motion while the speed of the drum 124 is gradually increased. The speed of the drum 124 is gradually increased from about 40 rpm to 150 rpm, and the time taken for the carriage to stick to the drum gradually increases, thereby performing filtration. It is preferable that the rolling motion and the tumbling motion be performed at least once while the speed of the drum 124 is gradually increased. Although the speed of the drum 124 may be constantly increased, the speed may be maintained for a predetermined time in the rolling motion and then maintained for a predetermined time in the tumbling motion. In addition, since the speed is increased in the rolling motion, the filtration may be performed without the tumbling motion.

Each step described above improves the washing performance when there is a large amount of water. Thus, the washing method described above is preferably performed when the amount of the detected amount is detected.

Although the above has been illustrated and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, but in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

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 of FIG.

3 is a block diagram of a washing machine according to an embodiment of the present invention.

4 is a view showing the entire stroke of the washing machine according to an embodiment of the present invention.

5 is a view showing filtration in the laundry method according to an embodiment of the present invention.

6 is a view showing a washing method according to an embodiment of the present invention.

Claims (16)

A rolling step in which the drum is rotated in a predetermined direction so that the foam in the drum rises and falls at a height not exceeding half the drum height; A tumbling step of rotating the drum in a predetermined direction such that the gun rises and falls near half of the drum height; And And a filtration step in which the washing water is supplied into the drum and the drum is rotated so that the cloth adheres to the drum. The method of claim 1, Washing speed of the drum in the tumbling step is faster than the speed of the drum in the rolling step. The method of claim 1, Washing speed of the drum in the filtration step is faster than the speed of the drum in the tumbling step. The method of claim 1, The washing method in which the filtration step is performed by gradually increasing the speed of the drum in the rolling step. The method of claim 1, Washing method in the rolling step the maximum speed of the drum is 40 rpm. The method of claim 1, The washing method in the rolling step that the fabric falls as if rolling. The method of claim 1, Washing method of the drum in the tumbling step is the maximum speed of 45 rpm. The method of claim 1, In the tumbling motion step, the cloth is lifted up by the lifter provided in the drum, ascending and falling after washing. The method of claim 1, Washing method in the filtration step the maximum speed of the drum is 150 rpm. The method of claim 1, Washing method accommodated in the tub in the filtration step is circulated is supplied to the drum. Rotating the drum to raise and drop the guns in the drum; And And the drum is rotated so that the speed of the drum is gradually increased so that the cloth adheres to the drum, and washing water is supplied into the drum. The method of claim 11, Washing speed is gradually increased from 40 rpm to 150 rpm. The method of claim 11, The drum maintains speed so that the carriage falls at a height no greater than half the height of the drum. After the speed increases, the drum maintains speed so that it falls around half of the drum height. How to keep the laundry. Tub for washing water; A drum disposed in the tub and containing the cloth and rotatable; A driving unit rotating the drum to rotate the drum gradually and then rapidly rotating the drum to raise and drop the cloth so that the cloth adheres to the drum; And And a pump for circulating the washing water in the tub and supplying the washing water into the drum when the drum rotates so that the cloth adheres to the drum. The method of claim 14, The drum maintains speed so that the carriage falls at a height no greater than half the drum height. After the speed increases, the drum maintains speed so as to fall around half of the drum height. Washing machine to maintain speed. The method of claim 14, The drum is a washing machine speed is gradually increased from 40 rpm to 150 rpm.

Images