KR20110072974A - Method for washing and washing machine - Google Patents

Abstract

PURPOSE: A washing method and a washing machine are provided to reduce the entire process time with filtering and rinsing before dehydration. CONSTITUTION: If eccentricity is within an allowed value, a controller performs filtering and rinsing with the acceleration of a drum(222). In order that the laundry sticks to the drum, the controller revolves the drum under the control of a driving unit. The controller sprays washing water through a second nozzle into the drum with the opening of a second water supply valve. The controller gradually rapidly revolves the drum. The controller performs simple dehydration after the shutting of the second water supply valve(223).

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 in which rinsing and dehydration are efficiently performed.

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 washed and rinsed as the drum is rotated and lifted up by a lifter mounted inside the drum, and then drops (tumbling). 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 washing machine that is efficiently rinsed and dehydrated.

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, the drum containing the foam dispersion step of dispersing the foam by repeating the deceleration to maintain a constant speed after acceleration; A filtration rinsing step in which the drum rotates so that the cloth is attached to the drum and the washing water is sprayed into the drum; Dehydration step of spraying wash water is stopped and dewatering the fabric by accelerating the drum; And a water supply step in which the drum is decelerated to rotate so that the fabric is attached to the drum and rotated, and the wash water in which the fabric softener is mixed is supplied into the drum.

In order to achieve the above object, a washing machine according to an embodiment of the present invention, the drum is inserted and rotated; A driving unit for rotating the drum such that the cloth is attached to the drum and rotates; A second nozzle to which washing water is sprayed into the drum when the cloth is attached to the drum and rotates; And a first nozzle through which the washing water mixed with the fabric softener is injected into the drum, and when the second nozzle stops spraying the washing water, the driving unit accelerates and rotates the drum and then decelerates the first nozzle. When spraying the wash water mixed with the fabric softener, the drum is rotated so that the fabric sticks to the drum and rotates.

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, by performing the filtration rinse before dehydration enters the overall stroke time is reduced and there is an advantage that less damage.

Second, there is an advantage that the residual detergent is efficiently removed even if the rinsing is performed only once by performing the filtration rinse before dehydration.

Third, the dehydration proceeds by accelerating the drum without stopping or decelerating the drum in the filtration rinsing so that the dispersion of the pore is not necessary.

Fourth, there is also an advantage that the washing water is efficiently sprayed during filtration and rinsing.

Fifth, when dehydration after the first filtration rinse proceeds the rinsing without stopping the drum does not have a dispersion before the second filtration rinse has the advantage of reducing the overall stroke time and less damage.

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 illustrating a washing machine according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the washing machine of FIG. 1, and FIG. 3 is an internal structural view of the washing machine of FIG. 1.

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 front surface of the cabinet 111 is rotatably provided with a door 112 to enable the opening and closing of the gun entrance hole 120. The cabinet 111 is provided with a control panel 114 for receiving a command from a user and displaying various state information of the washing machine 100. The cabinet 111 is provided with a detergent box 133 that is capable of withdrawing detergent such as laundry detergent, fabric softener, or bleach.

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.

Tub 122 may be provided with a level sensor 121 for detecting the level of the wash water accommodated in the tub. The level sensor 121 may be implemented in various ways. In the present embodiment, the gap between the electrodes is changed by using the air pressure which changes according to the washing water level, and the level is measured by the capacitance change amount of the electrode.

The drum 124 is rotated by receiving the cloth. The drum 124 is formed with a plurality of through holes 129 to allow the washing water to pass. The inner wall of the drum 124 may be a lifter 125 for lifting the cloth to a certain height when the drum 124 is rotated. The drum 124 is rotated by receiving the rotational force by the drive unit 113.

The gasket 128 is provided between the tub 122 and the cabinet 111 to seal 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 first nozzle 127 and a second nozzle 150 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 may include 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. The detergent box 133 may be formed by dividing the laundry detergent containing portion, the fiber softener containing portion, and the bleach receiving portion.

Inside the cabinet 111, a water supply valve unit 131 for controlling the inflow of the washing water from an external water source, and washing water flows into the detergent box 133 when the first water supply valve 131a of the water supply valve unit 131 is opened. Preferably, the first water supply hose 132 and the water supply pipe 134 into which the washing water mixed with the detergent in the detergent box 133 flow into the tub 122 are provided. In addition, when the second water supply valve 131b of the water supply valve unit 131 is opened, a second water supply hose connected to the second nozzle 150 so that the washing water not mixed with the detergent supplied directly from the external water source is sprayed into the drum 124. 159 may be provided.

The cabinet 111 has a drain pipe 135 through which the wash water in the tub 122 flows out, a pump 136 allowing the wash water in the tub 122 to flow out, and a wash water circulating and sprayed into the drum 124. It is preferable that a circulation hose 137 connected to the nozzle 127 and a drain hose 138 draining the washing water to the outside are provided. 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 hose 137 and the drain hose 138, respectively.

The first nozzle 127 is provided in the gasket 128 to spray washing water into the drum 124. The first nozzle 127 is connected to the circulation hose 137 and sprays the washing water circulated by the pump 136 into the drum 124.

The second nozzle 150 is provided in the gasket 128 to spray wash water into the drum 124. The second nozzle 150 is provided adjacent to the first nozzle 127. The second nozzle 150 is connected to the second water supply hose 159 to spray wash water supplied from an external water source into the drum 124.

Although the first nozzle 127 is connected to the circulation hose 137 and the second nozzle 150 is connected to the second water supply hose 159, the spirit of the present invention is not limited thereto. The first nozzle 127 and the second nozzle 150 may be connected to the circulation hose 137 and the second water supply hose 159 in various combinations. In some embodiments, the second nozzle 150 may be connected to the first nozzle ( 127 may be provided as an integral part.

The water supply valve unit 131 controls the inflow of the washing water from the external water source. The water supply valve unit 131 includes a first water supply valve 131a and a second water supply valve 131b. The first water supply valve 131a and the second water supply valve 131b are opened and closed to control the flow of washing water to the first water supply hose 132 and the second water supply hose 159 connected to each other.

The water supply valve unit 131 is a hot water valve (not shown), a bleach valve (not shown), a free valve (not shown), a main valve (not shown), a steam valve (not shown) connected to the detergent box 133, and the like. It may be configured to include. The hot water valve supplies hot water to the detergent box 133 by controlling hot water supplied from an external water source. The bleach valve allows the wash water to be supplied to a portion in which the bleach provided in the detergent box 133 is accommodated. The pre-valve is used at the beginning of the washing stroke and supplies washing water through the detergent box 133. At this time, the wash water coming through the pre-valve is supplied into the tub 122 without being mixed with the detergent. The main valve supplies the washing water to the detergent box 133 after the washing water supply by the pre-valve is finished in the washing administration. The wash water supplied by the main valve passes through a portion of the detergent box 133 in which the laundry detergent is accommodated, mixed with the laundry detergent, and then supplied into the tub 122. The steam valve supplies washing water to a steam hose (not shown) connected to a steam module (not shown). In the case of the rinse in which the fabric softener is supplied, the main valve and the pre-valve operate at the same time to supply the wash water to a portion in which the fabric softener provided in the detergent box 133 is accommodated. In the combined stroke, the bleach valve, the main valve and the free valve may be operated to supply wash water into the tub 122.

Each of the valves described above may be implemented in combination with two or more according to the embodiment, in addition to the respective functions. In the present embodiment, the first water supply valve 131a corresponds to the main valve, but the scope of the present invention is not limited thereto. Any one of the above-described valves may act as the first water supply valve 131a or the second water supply valve 131b, and two or more may be combined to combine the first water supply valve 131a or the second water supply valve 131b. Can act as Any one of the hoses connected to each valve and connected to the detergent box 133 may serve as the first water supply hose 132 or the second water supply lake 159.

The first water supply hose 132 connects the first water supply valve 131a and the detergent box 133. The wash water supplied from the external water source through the first water supply valve 131a reaches the detergent box 133 through the first water supply hose 132, and the wash water mixed with the detergent in the detergent box 133 is a water supply pipe. It is introduced into the tub 122 through the (134).

The second water supply hose 159 connects the second water supply valve 131b and the second nozzle 150. The wash water supplied from the external water source through the second water supply valve 131b reaches the second nozzle 150 through the second water supply hose 159. The washing water reaching the second nozzle 150 is converted into vortex through the second nozzle 150 and sprayed into the drum 124.

The circulation hose 137 connects the pump 136 and the first nozzle 127. The washing water discharged from the tub 122 by the pump 136 is injected into the drum 124 from the first nozzle 127 through the circulation hose 137.

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 100 is divided into a washing stroke and a complex stroke, and water, washing, rinsing, draining, dehydrating or drying are performed in each stroke.

FIG. 4 is a view illustrating a region in which washing water sprayed or sprayed by a first nozzle or a second nozzle of a washing machine according to an embodiment of the present invention affects.

The first nozzle 127 or the second nozzle 150 allows the washing water to be sprayed or sprayed on the area A of the inner side 124a and the rear side 124b of the drum 124. The first nozzle 127 or the second nozzle in the area A of the inner surface 124a of the drum 124 corresponding to the circumferential surface of the drum 124 and the rear surface 124b corresponding to the bottom surface of the drum 124. Preferably, the washing water sprayed or sprayed at 150 is affected. When the cloth is accommodated in the drum 124 and rotates, washing water sprayed or sprayed by the first nozzle 127 or the second nozzle 150 acts on the cloth in this area A.

5 is a view illustrating a gasket, a first nozzle, and a second nozzle of a washing machine according to an embodiment of the present invention.

Referring to FIG. 5, it is preferable that the first nozzle 127 and the second nozzle 150 have a gasket 128 provided on the inner circumferential surface to effectively spray or spray the wash water into the drum 124.

The inner circumferential surface of the gasket 128 to prevent the cloth from spilling when the cloth is separated by the rotation of the drum 124 and is caught between the gasket 128 and the cabinet 111 or when the door 112 is opened after washing is completed. The first protrusion 128a and the second protrusion 128b protruding from the upper portion of the upper portion are formed. The first nozzle 127 and the second nozzle 150 are provided between the first protrusion 128a and the second protrusion 128b, and when spraying or spraying washing water, the first protrusion 128a and the second nozzle 150 are provided. It is preferable not to interfere with the projection 128b.

When the door 112 closes the gun entrance hole 120, a part of the door 112 is introduced into the drum 124. The first nozzle 127 and the second nozzle 150 are positioned so that the portion of the door 112 drawn into the drum 124 and the first nozzle 127 and the second nozzle 150 do not interfere. The first nozzle 127 and the second nozzle 150 are provided to be spaced apart from the door 112 by a predetermined distance when the door 112 closes the gun entrance hole 120.

The first nozzle 127 and the second nozzle 150 may be located off the center line of the drum 124. If the first nozzle 127 and the second nozzle 150 are located off the center line of the drum 124, the area of the inner surface 124a and the rear surface 124b of the drum 124 when the washing water is sprayed Washing water may work better in (A).

The first nozzle 127 or the second nozzle 150 may be disposed toward the inside of the drum 124. In addition, the first nozzle 127 or the second nozzle 150 may be inclined toward the first protrusion 128a or the second protrusion 128b.

6 is an exploded perspective view of a second nozzle of a washing machine according to an embodiment of the present invention.

Referring to FIG. 6, the second nozzle 150 is formed of a dome 151 having one side formed in a hemispherical shape and having an accommodation space 154 therein, and a plate provided in the accommodation space 154 and twisted. The core 152 converts the washing water passing through the flow path into a vortex by forming the receiving space 154 and the plurality of twisted flow paths, and the washing water passing through the flow path formed by the core 152 and the receiving space 154 is sprayed. It is configured to include a spray nozzle cap 153.

The dome 151 is formed in a hemispherical shape and an accommodation space 154 that is an empty space is formed therein. The dome 151 is connected to the second water supply lake 159. The wash water flowing from the second water supply hose 159 is accommodated in the accommodation space 154. The dome 151 is formed in a curved shape so that when the gun enters and exits the gun entrance hole 120, the gun is not caught by the second nozzle 150 or damaged by the second nozzle 150.

The receiving space 154 is provided with a core 152 formed of a twisted plate. The core 152 is formed in the shape which twisted one or several plates. The core 152 is provided in the accommodation space 154 to form a flow path between the accommodation space 154 and the core 152, which is formed in the shape of a twisted plate, the plurality of flow paths It is formed in a twisted shape or spiral. The core 152 may be implemented in various forms to form the receiving space 154 and the twisted flow path, and may be implemented in various forms such as screw, propeller, twisted pipe, twisted propeller, twisted screw, thread shape. .

When the wash water passes through the flow path of the core 152 and the receiving space 154, it is converted into vortex by the shape of the flow path. The wash water converted into the vortex is evenly sprayed in the drum 124 by the rotational force to absorb more of the wash laundry water.

When the wash water passes through the flow path formed in the core 152 and the receiving space 154, the core 152 is rotated by the washing water inside the receiving space (154). As the core 152 is rotated, the wash water rotates together to help better form the vortex.

The spray nozzle cap 153 allows the wash water passing through the flow path formed by the core 152 and the receiving space 154 to be sprayed. The spray nozzle cap 153 has an opening to allow the wash water converted into the vortex to be sprayed into the drum 124. Spray nozzle cap 153 is fastened and fixed to the dome 151. When the spray nozzle cap 153 is fastened to the dome 151, the packing formed of a waterproof material such as rubber to prevent the wash water from leaking to the part fastened to the spray nozzle cap 153 and the dome 151 (not shown) May be additionally provided.

7 is a perspective view of a first nozzle of a washing machine according to an embodiment of the present invention.

Referring to FIG. 7, the first nozzle 127 includes a main body 127a having a flow path through which washing water passes, and a refracting surface 127b for colliding and spraying the washing water passing through the main body.

The main body 127a is formed in a cylindrical shape, and preferably passes through wash water. The main body 127a is connected to the circulation hose 137, and the wash water flowing from the circulation hose 137 passes through. The refractive surface 127b is preferably formed to extend from the lower opening of the main body 127a and bend in an arc shape.

When the wash water passes through the flow path of the main body 127a and strikes the refracting surface 127b, it is spread widely and evenly sprayed into the drum 124 to allow the fabric to more penetrate the wash water. The first nozzle 127 is not limited to the present embodiment but may be implemented in various forms capable of spraying the washing water.

8 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 unit 131, the driving unit 113, and the pump 136 according to the selected course or other operation command.

9 is a view showing the entire stroke of the washing method according to an embodiment of the present invention, Figure 10 is a view showing the rotational speed of the drum during the complex administration in the washing method shown in FIG.

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 the water supply 211, the laundry 212, and the drainage 213.

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. The water supply 211 is preferably made in the order of quantity detection, initial water supply, bubble core and additional water supply.

The quantity detection is to sense the amount of cloth contained in the drum 124 (hereinafter referred to as 'capacity'). In the quantity detection, the quantity can be measured by various methods. 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. The control unit 141 determines the amount of wash water supplied into the tub 122 at the time of water supply and the amount of wash water sprayed into the drum 124 at the time of filtration and rinsing according to the detected amount of water, and determines the operation time for each stroke.

The initial water supply is to supply the wash water mixed with the laundry detergent into the tub 122. After the initial water supply, the washing water is not mixed with the laundry detergent may be supplied and then the washing water is mixed with the laundry detergent. The control unit 141 opens the pre-valve of the water supply valve unit 131 so that the washing water is introduced into the tub 122 through the water supply pipe 134 without being mixed with the laundry detergent in the detergent box 133, and then the water supply valve unit 131. After the first water supply valve 131a is opened, the washing water may be mixed with the washing detergent in the detergent box 133 and then introduced into the tub 122 through the water supply pipe 134. In addition, during the initial water supply, the control unit 141 opens the second water supply valve 131b and sprays the wash water, in which the laundry detergent is not mixed, into the drum 124 through the second nozzle 150, and the first water supply valve ( The washing water may be introduced into the tub 122 through the water supply pipe 134 after the washing water is mixed with the laundry detergent in the detergent box 133 by opening 131a). During the initial water supply, the hot water valve of the water supply valve unit 131 may be opened to introduce hot water into the tub 122.

The initial water supply will continue until the wash water fills up to the target level. The target water level is determined by the controller 141 according to the quantity of water measured before the initial water supply or the selected course. The water level of the wash water is preferably measured by the water level sensor 121. When the wash water flows into the tub 122 to the target water level, the controller 141 shuts off the valve of the water supply valve unit 131 to finish the initial water supply.

The packing core is to rotate the drum 124 by driving the driving unit 113 so that the washing water mixed with the laundry detergent is evenly soaked in the cloth and the laundry detergent is dissolved. The lamination control unit 141 may operate the pump 136 to circulate the washing water along the circulation hose 137 and may be injected into the drum 124 through the first nozzle 127.

The additional water is to supply additional wash water into the tub 122 to the target level because the wash water is soaked in the cloth and the water level is lower than the target level. When the additional water supply control unit 141 opens various valves of the first water supply valve 131a, the second water supply valve 131b, or the water supply valve unit 131, washing water is supplied from the external water source through the water supply pipe 134, or Sprayed through the two nozzles 150. When the wash water flows into the tub 122 to the target water level, the controller 141 blocks the various valves of the first water supply valve 131a, the second water supply valve 131b, or the water supply valve unit 131 to finish additional water supply.

The laundry 212 rotates the drum 124 containing the cloth soaked in the laundry water mixed with the laundry detergent. During washing 212, the control unit 141 controls the driving unit 113 to rotate the drum 124 at various speeds or directions to raise and drop the foam, thereby applying mechanical force such as stretching force, friction force, and impact force to the fabric to contaminate the fabric. Remove 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 hose 137 and may be injected into the drum 124 through the first nozzle 127.

When washing 212, the control unit 141 may open the bleach valve of the water supply valve unit 131, and then wash water may be mixed with the bleach in the detergent box 133, and then introduced into the tub 122 through the water supply pipe 134. . The supply of wash water mixed with bleach is preferably performed as the last step of the washing 212 just before the washing 212 is finished.

The drain 213 discharges the washing water in the tub 122 to the outside of the cabinet 111. The control unit 141 when the drain 214 operates the pump 136 to allow the wash water in the tub 122 to be discharged to the outside along the drain hose 138.

Compound stroke 220 is a stroke for removing the residual detergent of the fabric and dewatering the fabric, a combined rinsing stroke and dehydration stroke in a general washing method. The composite stroke 220 is a podis 221, a filtration rinse 222, a simple dewatering 223, a water supply 224, a rinse 225, a drain 226, a podis 227, a filtration rinse 227 And dewatering 228. When the combined stroke 220 is started, the controller 141 preferably displays a rinsing and / or dehydration icon on the progress display of the display 114a.

Foam dispersion 221 disperses the fabric by repeatedly decelerating the drum 124 while maintaining a constant speed after acceleration. When washing 212, a phenomenon in which the fabric is biased to one side due to entanglement of the fabric, etc., causes an eccentricity in which one side becomes heavy based on the center of the drum. The eccentricity of the cloth causes noise and vibration during high speed rotation of the drum 124, so that the cloth is evenly distributed.

Fossil dispersion 221 is made with a cycle to accelerate and maintain a constant speed after accelerating the drum 124 as shown in FIG. The drum 124 accelerates during the foam dispersion 221 to maintain the speed at which the drum 124 is attached to the drum 124 to rotate. Preferably, when dispersing 221, the drum 124 maintains a maximum speed of 108 rpm, which does not cause noise or failure due to eccentricity. Filtration rinsing 222 may be performed by maintaining the speed at which the carriage is attached to the drum 124 and decelerating and then accelerating again, or by accelerating after maintaining the speed for some time.

When dispersing 221, the control unit 141 measures the amount of air based on the deceleration time of the drum when decelerating the drum 124, accelerates the drum 124, and then measures the eccentricity based on the amount of change in the rotational speed of the drum. Measure

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. The controller 141 accelerates the drum 124 when the amount of eccentricity is within the allowable value, and performs the filtration rinse 222.

The filtration rinse 222 is sprayed washing water is not mixed with detergent in the drum when the drum 124 is rotated attached to the drum drum to wash the wash water penetrates the cloth to remove residual detergent and contamination. During the filtration rinse 222, the control unit 141 controls the driving unit 113 to rotate the drum to be attached to the carriage drum 124, the second water supply valve 131b is opened to wash the water through the second nozzle 150 Sprayed into the drum 124. At this time, the control unit 141 operates the pump 136 so that the washing water in the tub 122 is discharged to the outside along the drain hose 138.

In the filtration rinse 222, the drum 124 is rotated by more than 1G so that the foam is attached to the drum to rotate. In the filtration rinse 222, the drum 124 is preferably rotated about 400 rpm. The drum 124 may be accelerated to 600 rpm during the filtration rinse 222. That is, before the drum 124 is accelerated to 600 rpm and the simple dewatering 223 is performed, the washing water, in which the detergent is not mixed, may be sprayed into the drum.

Detailed description of the filtration rinse 222 will be described later with reference to FIG. 11.

The simple dewatering 223 rotates the drum 124 at a high speed so that the washing water soaked in the cloth exits. The controller 141 rotates the drum 124 gradually and rapidly after the filtration rinse 222 and closes the second water supply valve 131b to perform the simple dewatering 223.

Since the simple dewatering 223 does not need to be dehydrated enough to dry the fabric, the drum 124 is preferably rotated at about 750 rpm. In the simple dewatering 223, the control unit 141 may operate the pump 136 intermittently to discharge the washing water in the tub 122 to the outside along the drain hose 138.

The simple dewatering 223 accelerates and progresses the drum 124 without stopping or decelerating the drum 124 in the filtration rinse 222, thereby eliminating the need for separate dispersion, thereby reducing the overall time and reducing the damage to the foam.

The water supply 224 supplies the washing water into the tub 122 from an external water source similarly to the water supply 211 of the washing stroke 210 described above. The water supply 224 is rotated at a speed of 1G while the drum 124 is decelerated and stopped after the simple dewatering water 223 is attached to the carriage drum and is supplied with washing water. When the water supply 224, the drum 124 is preferably rotated about 108 rpm.

When the water supply 224, the control unit 141 opens the first water supply valve 131a and the free valve so that the washing water is mixed with the fiber softener in the detergent box 133 and then flows into the tub 122 through the water supply pipe 134. do.

Dripping rinsing 225 is to rotate the drum 124 containing the cloth soaked with wash water mixed with fabric softener. The controller 141 controls the driving unit 113 during the falling water rinsing 225 to rotate the drum 124 at a speed of 1 G attached to the carriage drum. The drum 124 during the downpour rinse 225 preferably maintains the speed during the water supply 224.

During the downfall rinsing 225, the control unit 141 operates the pump 136 to circulate the washing water along the circulation hose 137 to be sprayed into the drum 124 through the first nozzle 127.

The drain 226 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 control unit 141 at the time of drainage 223 controls the driving unit 113 to rotate the drum 124 at a 1G speed to rotate attached to the carriage drum. The drum 124 during the drainage 226 preferably maintains the speed during the downfall rinse 225.

Since the drum 124 does not stop in the course of the water supply 224, the downfall rinsing 225, and the drainage 226 after the simple dewatering 223, the filtration rinsing 227 maintains more than the speed at which the foam is attached to the drum. Proceed.

Filtration rinse 227 is similar to the filtration rinse 222 described above, the drum 124 is rotated by spraying the washing water is not mixed with the laundry detergent in the drum in the state attached to the drum drum washing water penetrates the fabric and the residual detergent and The contamination is removed. Filtration rinsing 227 accelerates the drum 124 after the drain 226.

The main dewatering 228 rotates the drum 124 at high speed so that the washing water soaked in the cloth exits like the simple dewatering 223. The controller 141 rotates the drum 124 gradually and rapidly after the filtration rinse 227 and closes the second water supply valve 131b to perform the main dehydration 228. However, it is preferable to rotate the drum 124 to a maximum speed of 1000 rpm or more so that the fabric is dried as much as possible.

The control unit 141 intermittently operates the pump 136 when the main dewatering water 228 is discharged to the outside along the drain hose 138 by washing water in the tub 122.

The main dewatering 228 accelerates and progresses the drum 124 without stopping or decelerating the drum 124 in the filtration rinse 227, thereby eliminating the need for separate dispersion, thereby reducing the overall time and reducing the damage to the foam.

After the main dewatering 228, drying may be performed to supply hot air into the drum 124 to dry the fabric.

11 is a view showing a state in which the filtration rinsing in the washing method according to an embodiment of the present invention.

Referring to FIG. 11, when the drum rotates so that the cloth L adheres to the drum 124 in the filtration rinses 222 and 227, the second water supply valve 131b is opened to wash the second nozzle 150. Through the drum 124.

Preferably, the drum 124 rotates about 400 rpm, and the second nozzle 150 sprays the washing water to the area A of the inner side 124a and the rear side 124b of the drum 124. . Sprayed wash water penetrates the fabric (L) and residual detergent and contamination are removed.

The controller 141 operates the pump 136 to allow the washing water in the tub 122 to be discharged to the outside along the drain hose 138.

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 an internal structural view of the washing machine of FIG.

FIG. 4 is a view illustrating a region in which washing water sprayed or sprayed by a first nozzle or a second nozzle of a washing machine according to an embodiment of the present invention affects.

5 is a view illustrating a gasket, a first nozzle, and a second nozzle of a washing machine according to an embodiment of the present invention.

6 is an exploded perspective view of a second nozzle of a washing machine according to an embodiment of the present invention.

7 is a perspective view of a first nozzle of a washing machine according to an embodiment of the present invention.

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

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

10 is a view showing the rotational speed of the drum in the combined stroke in the laundry method shown in FIG.

11 is a view showing a state in which the filtration rinsing in the washing method according to an embodiment of the present invention.

Claims (17)

A foam dispersion step of dispersing the foam by repeating deceleration while maintaining a constant speed after the drum in which the foam is accommodated; A filtration rinsing step in which the drum rotates so that the cloth is attached to the drum and the washing water is sprayed into the drum; Dehydration step of spraying wash water is stopped and dewatering the fabric by accelerating the drum; And And a water supply step in which the drum is decelerated to rotate so that the fabric is attached to the drum and rotated, and the wash water in which the fabric softener is mixed is supplied into the drum. The method of claim 1, And a dripping rinse step of rotating the drum so that the cloth is attached to the drum and circulating the washing water mixed with the fabric softener and spraying the washing water into the drum. The method of claim 1, A drainage step in which the drum is rotated so that the cloth is attached to the drum and the wash water mixed with the fiber softener contained in the tub disposed outside the drum is discharged to the outside; And And a second filtration rinsing step in which the drum rotates to accelerate and the wash water is sprayed into the drum. The method of claim 1, And washing the drum in the foaming step to accelerate and decelerate the drum while maintaining the speed at which the cloth is attached to the drum and rotating. The method of claim 4, wherein Washing method in which the drum in the podis dispersion step to accelerate and maintain 108 rpm to decelerate. The method of claim 1, Washing in the water supply step is accelerated to 108 rpm or more. The method of claim 1, Washing method in which the washing water accommodated in the tub disposed outside the drum in the filtration rinse step is discharged to the outside. The method of claim 1, In the filtration rinse step the drum is rotated at 400 rpm. The method of claim 1, The washing water sprayed into the drum in the filtration rinsing step is washing water that is not mixed with detergent supplied from an external water source. The method of claim 1, The washing method in the filtration rinsing step is sprayed with a vortex. The method of claim 1, The washing method in the filtration rinsing step is sprayed to the inner side and the rear of the drum. A drum in which the fabric is inserted and rotated; A driving unit for rotating the drum such that the cloth is attached to the drum and rotates; A second nozzle for spraying wash water into the drum when the cloth is attached to the drum and rotates; And A first nozzle for spraying the wash water mixed with the fabric softener into the drum, When the second nozzle stops spraying the wash water, the driving unit accelerates and decelerates the drum and decelerates so that the cloth is attached to the drum when the first nozzle sprays the wash water mixed with the fabric softener. Washing machine to rotate the drum. 13. The method of claim 12, The second nozzle is a washing machine for spraying the washing water on the inner and rear surfaces of the drum. The method of claim 13, The second nozzle, A dome formed on one side of a hemispherical shape and having a receiving space therein; A core provided in the accommodation space and formed as a twisted plate to form a plurality of twisted flow paths with the accommodation space, thereby converting the wash water passing through the flow path into a vortex; And Washing machine comprising a spray nozzle cap for spraying the wash water passed through the flow path formed by the core and the receiving space. 13. The method of claim 12, A tub in which the drum is disposed; And And a pump for discharging the washing water contained in the tub to the outside when the second nozzle sprays the washing water into the drum. 13. The method of claim 12, A first water supply valve controlling an inflow of the washing water from an external water source; Detergent box containing a fabric softener; A first water supply hose connecting the first water supply valve and the detergent box; And Further comprising a water supply pipe connecting the detergent box and the first nozzle, And the first water supply valve opens the first nozzle to spray wash water into the drum. 13. The method of claim 12, A second water supply valve controlling an inflow of the washing water from an external water source; Further comprising a second water supply hose for connecting the second water supply valve and the second nozzle, The second water supply valve is a washing machine in which the second nozzle is opened to inject the wash water mixed with the fabric softener into the drum.

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