KR101709474B1 - Method for washing and washing machine - Google Patents

Abstract

The present invention relates to a washing method and a washing machine in which rinsing and dehydration are efficiently performed. The washing method according to an embodiment of the present invention includes: a boll dispersing step in which the drum is repeatedly decelerated while maintaining the drum at a constant speed after acceleration; A filtering rinsing step in which the drum is rotated so that the can is rotated around the drum and washing water is sprayed into the drum; And a dehydrating step of stopping washing water spray and accelerating the drum to dehydrate the cloth.

Filtration rinsing, filtration, multiple administration

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention 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 dewatering are efficiently performed.

Generally, a washing machine is a device for washing through washing, rinsing, dehydration, etc., so as to remove contamination from clothes, bedding, etc. (hereinafter referred to as "foam") by using water, detergent and mechanical action.

The washing machine is roughly divided into an agitator type, a pulsator type, and a drum type washing machine.

In the agitation type, the washing rods rising in the center of the washing tub are washed by rotating the washing rods to the left and right, and the swirl type washing is performed by using the frictional force of the water stream and the vagrant, Wash the drum with water, detergent and cloth.

The drum washing machine includes a tub having an inside of a cabinet forming an outer appearance, a tub accommodating washing water, a drum disposed inside the tub, a motor for rotating the drum mounted on a rear side of the tub, And a drive shaft connected to the back surface side of the drum is formed. The drum is equipped with a lifter inside the drum to rotate the drum.

In the drum washing machine, when the drum rotates, the laundry is pushed up by the lifter mounted on the inside of the drum, then washed and rinsed according to tumbling. In addition to the tumbling motion, various washing methods are required to improve the washing performance.

SUMMARY OF THE INVENTION The present invention provides a washing method and a washing machine in which rinsing and dehydration are efficiently performed.

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

According to an aspect of the present invention, there is provided a washing method comprising: a boll dispersing step in which a drum containing a boll is repeatedly decelerated while maintaining a constant speed; A filtering rinsing step in which the drum is rotated so that the can is rotated around the drum and washing water is sprayed into the drum; And a dehydrating step of stopping washing water spray and accelerating the drum to dehydrate the cloth.

According to an aspect of the present invention, there is provided a washing machine comprising: a drum rotatably mounted on a drum; A driving unit for rotating the drum so that the bag is attached to the drum; And a nozzle for spraying the washing water into the drum when the bag is rotated on the drum, wherein the driving unit accelerates the drum when the nozzle stops spraying the washing water.

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

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

First, filtration rinsing is performed before entering the dehydration process, which reduces the total processing time and reduces the bodily damage.

Second, filtration rinsing is performed before dehydration so that residual detergent can be efficiently removed even if rinsing is performed once.

Third, in the filtration rinse, the drum is accelerated without stopping or decelerating the drum, and dehydration proceeds, thereby eliminating the need for bubble dispersion, thereby shortening the entire time and reducing the bubble damage.

Fourth, there is an advantage that the washing water is sprayed efficiently in the filtration rinse.

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

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

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.

FIG. 1 is a perspective view of a washing machine according to an embodiment of the present invention. FIG. 2 is a sectional view of the washing machine of FIG. 1, and FIG. 3 is an internal structure of the washing machine of FIG.

The washing machine 100 according to an embodiment of the present invention includes a cabinet 111 forming an outer appearance, a door 112 opening and closing one side of the cabinet so that the cloth enters and exits into the cabinet, A detergent box 133 in which a detergent is contained, a user-input unit 130, and a controller 130. The detergent dispenser 140 includes a tub 122, a drum 124 disposed inside the tub, And a control panel 114 for displaying the washing machine status.

The cabinet 111 is formed with a bag entrance / exit hole 120 so that the bag can be taken in and out. A door 112 is rotatably provided on a front surface of the cabinet 111 so as to open and close the blind hole 120. The cabinet 111 is provided with a control panel 114 for receiving commands from a user and displaying various status information of the washing machine 100. The cabinet 111 is provided with a detergent box 133 capable of detachably receiving a detergent such as laundry detergent, fabric softener or bleach.

The tub 122 is disposed in the cabinet 111 so as to be able to be buffered by a spring 115 and a damper 117. The tub 122 receives wash water. A drum 124 is disposed inside the tub 122.

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

The drum 124 receives the pod and rotates. The drum 124 is formed with a plurality of through holes 129 through which wash water is passed. On the inner wall of the drum 124, a lifter 125 for lifting the drum 124 at a predetermined height may be disposed. The drum 124 receives the rotational force by the driving unit 113 and rotates.

A 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 inlet / outlet hole 120. The gasket 128 alleviates an impact transmitted to the door 112 when the drum 124 rotates and 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 through which the washing water flows into the drum 124.

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

The detergent box 133 receives a detergent such as laundry detergent, fabric softener or bleach. The detergent box 133 is preferably detachably provided on the front surface of the cabinet 111. The detergent in the detergent box 133 is mixed with the washing water when the washing water is supplied and flows into the tub 122. The detergent box 133 may be formed by dividing the portion where the laundry detergent is contained, the portion where the fabric softener is received, and the portion where the bleach is received.

A water supply valve unit 131 for controlling the inflow of the washing water from the external water source into the cabinet 111 and a water supply valve unit 131 for flowing the washing water into the detergent box 133 when the first water supply valve 131a of the water supply valve unit 131 is opened And a water supply pipe 134 through which the detergent mixed in the detergent box 133 flows into the washing water tub 122 is preferably provided. The second water supply hose 131 is connected to the second nozzle 150 so that the washing water not mixed with the detergent supplied directly from the external water source when the second water supply valve 131b of the water supply valve unit 131 is opened is sprayed into the drum 124. [ (159) may be provided.

A pump 136 for discharging the washing water in the tub 122 and a drain pipe 135 for discharging the washing water in the tub 122 are provided in the cabinet 111 so that the washing water is circulated and injected into the drum 124, A circulation hose 137 connected to the nozzle 127, and a drain hose 138 for draining wash water to the outside. The pump 136 may be 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 wash water into the drum 124. The first nozzle 127 is connected to the circulation hose 137 and injects 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 the washing water supplied from the external water source into the drum 124.

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. However, the spirit of the present invention is not limited thereto. The first nozzle 127 and the second nozzle 150 may be connected in various combinations with the circulation hose 137 and the second water supply hose 159. According to an embodiment, the second nozzle 150 may be connected to the first nozzle 127, respectively.

The water supply valve unit 131 regulates the inflow of the wash 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 regulate the flow of wash water to the first water supply hose 132 and the second water supply hose 159 connected to the first water supply valve 131a and the second water supply valve 131b.

The water supply valve unit 131 is connected to the detergent box 133 through a hot water valve (not shown), a bleed valve (not shown), a free valve (not shown), a main valve (not shown), a steam valve As shown in FIG. The hot water valve controls the hot water supplied from the external water source and supplies hot water to the detergent box 133. The bleach valve allows wash water to be supplied to the portion of the detergent box 133 where the bleach is contained. The free valve is used at the beginning of the washing cycle, and supplies washing water through the detergent box 133. At this time, the washing water coming through the free 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 completed. The wash water supplied by the main valve passes through the portion of the detergent box 133 where the laundry detergent is received, is mixed with the laundry detergent, and then supplied into the tub 122. The steam valve supplies wash water to the steam hose (not shown) connected to the steam module (not shown). In the case of rinsing with the fabric softener supplied, the main valve and the free valve simultaneously operate to supply wash water to the portion where the fabric softener provided in the detergent box 133 is accommodated. The bleed valve, the main valve, and the free valve can be operated to supply the washing water into the tub 122. [

In addition to the respective functions, each of the valves described above may be implemented by combining two or more of them according to the embodiment. In the present embodiment, the first water supply valve 131a corresponds to the main valve, but the spirit of the present invention is not limited thereto. Any one of the valves described above may function as a first water supply valve 131a or a second water supply valve 131b and two or more of them may function as a first water supply valve 131a or a second water supply valve 131b, . ≪ / RTI > Any one of the hoses connected to the respective valves and connected to the detergent box 133 may serve as the first water supply hose 132 or the second water supply lakes 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 flows into the water supply pipe 134 into the tub 122. [

And 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 a 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 circulating hose 137. [

The control panel 114 is provided with an input unit 114b for inputting various operation commands such as selection of a washing course through a user, operation time and reservation for each stroke, and a display unit 114a for indicating the operating state of the washing machine 100 .

The laundry course includes lingerie / wool course, boil-off course, speed wash course, functional apparel course, and quiet-style course, depending on the type and function of the poodle. The operation of the washing machine 100 is divided into a washing process and a complex process, and watering, washing, rinsing, draining, dewatering or drying is performed in each of the processes.

FIG. 4 is a view showing a region where the first nozzle or the second nozzle of the washing machine according to the embodiment of the present invention is sprayed or sprayed.

The first nozzle 127 or the second nozzle 150 allows washing water to be sprayed or sprayed onto the area A of the inner side surface 124a and the rear surface 124b of the drum 124. [ The first nozzle 127 or the second nozzle 127 is provided in the area A of the rear surface 124b corresponding to the inner surface 124a of the drum 124 and the bottom surface of the drum 124 corresponding to the circumferential surface of the drum 124, It is desirable that the washing water sprayed or sprayed from the washing unit 150 is applied. The washing water which is sprayed or sprayed by the first nozzle 127 or the second nozzle 150 in the area A acts on the cloth when the cloth is accommodated in the drum 124 and rotated.

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

5, it is preferable that the first nozzle 127 and the second nozzle 150 are provided on the inner circumferential surface of the gasket 128 to effectively spray or spray the washing water into the drum 124.

The inner peripheral surface of the gasket 128 and the outer peripheral surface of the gasket 128 are separated from each other by the rotation of the drum 124 to prevent the inner peripheral surface of the gasket 128 from being pinched between the gasket 128 and the cabinet 111, The first protrusions 128a and the second protrusions 128b protruding from the upper portion of the substrate 100 are formed. The first nozzle 127 and the second nozzle 150 are provided between the first protrusions 128a and the second protrusions 128b so that when the washing water is sprayed or sprayed, the first protrusions 128a and the second protrusions 128b, It is preferable not to interfere with the protrusion 128b.

A part of the door 112 is drawn into the drum 124 when the door 112 is closed. The first nozzle 127 and the second nozzle 150 are positioned such that the first nozzle 127 and the second nozzle 150 do not interfere with the portion of the door 112 that is drawn into the drum 124. The first nozzle 127 and the second nozzle 150 are spaced apart from the door 112 by a predetermined distance when the door 112 closes the draw-

The first nozzle 127 and the second nozzle 150 may be positioned away from the centerline of the drum 124. When 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, The washing water can be more effectively applied to the washing water (A).

The first nozzle 127 or the second nozzle 150 may be disposed toward the inside of the drum 124. 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.

6, the second nozzle 150 includes a dome 151 having a hemispherical shape on one side and a receiving space 154 formed therein, and a dome 151 formed on the receiving space 154 and formed of a twisted plate A receiving space 154 and a plurality of twisted flow paths to form a core 152 for converting the washing water passing through the flow path into an eddy current and a washing water sprayed through the flow path formed by the core 152 and the receiving space 154, And a spray nozzle cap 153 for spraying.

The dome 151 is formed in a hemispherical shape, and a receiving space 154, which is an empty space, is formed therein. The dome 151 is connected to the second water supply lake 159. The washing water flowing from the second water supply hose 159 is received in the receiving space 154. The dome 151 is formed in a curved shape so that the cap is prevented from being caught by the second nozzle 150 or damaged by the second nozzle 150 when the cap enters and exits the cap 120. [

The accommodation space 154 is provided with a core 152 formed of a twisted plate. One or more plates of the core 152 are formed in a twisted shape. The core 152 is provided in the receiving space 154 to form a flow path between the receiving space 154 and the core 152. The flow path is formed in the shape of the twisted plate of the core 152, Twisted shape or spiral shape. The core 152 may be embodied in various forms, such as a screw, a propeller, a twisted tube, a twisted propeller, a twisted screw, a threaded shape, etc., .

When the wash water passes through the flow path of the core 152 and the containing space 154, it is converted into eddy current by the shape of the flow path. The washing water converted into the vortex is uniformly sprayed in the drum 124 by its rotational force, so that the laundry absorbs the wash water more.

The core 152 is rotated by the wash water inside the accommodation space 154 when the wash water passes through the flow path formed in the core 152 and the accommodation space 154. [ As the core 152 rotates, the wash water is rotated together to help form a better vortex.

The spray nozzle cap 153 allows the wash water to pass through the flow path formed by the core 152 and the accommodation space 154. The spray nozzle cap 153 is formed with an opening to allow the wash water converted into eddy current to be sprayed into the drum 124. The spray nozzle cap 153 is fastened and fixed to the dome 151. A seal (not shown) formed of a waterproof material such as rubber or the like is provided so as to prevent the wash water from leaking and flowing to the portion to be fastened to the spray nozzle cap 153 and the dome 151 when the spray nozzle cap 153 is fastened to the dome 151 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 passage through which wash water flows, and a refracting surface 127b that repels and refracts the wash water passing through the main body.

The main body 127a has a cylindrical shape and is preferably passed through wash water. The main body 127a is connected to the circulating hose 137, and the washing water flowing from the circulating hose 137 passes. The refracting surface 127b is preferably formed to extend from the lower opening of the main body 127a and be bent 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 spreads widely and is uniformly sprayed into the drum 124, allowing the water to permeate more washing water. The first nozzle 127 is not limited to the present embodiment but may be implemented in various forms capable of spraying wash water.

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

The control unit 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. A microcomputer for controlling the operation of the washing machine, and other electronic components. The control unit 141 determines whether or not the operation of each stroke is performed according to the washing course selected by the user and whether or not the operation such as water supply, washing, rinsing, drainage, dehydration, drying, etc. is performed within each stroke, do.

The control unit 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.

FIG. 9 is a view showing an entire stroke of the washing method according to an embodiment of the present invention, and FIG. 10 is a view showing a rotating speed of the multiple-stroke type drum in the washing method shown in FIG.

The washing cycle 210 is a washing cycle in which laundry detergent mixed with washing detergent is soaked in a cloth and the drum 124 is rotated to remove contamination from the cloth. In the washing method according to an embodiment of the present invention, the washing cycle 210 proceeds in the order of the water supply 211, the washing 212, and the drain 213.

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

The water supply 211 supplies the wash water from the external water source into the tub 122. It is preferable that the water supply 211 is performed in the order of detection of the amount of water, initial water supply, sedimentation, and additional water supply.

The detection of the amount of waste is to detect the amount of the cloth contained in the drum 124 (hereinafter referred to as the "amount of cloth"). In the present embodiment, the driving unit 113 rotates the drum 124 at a constant speed for a predetermined period of time, and then the controller 141 measures the deceleration time by measuring the deceleration time . The longer the deceleration time of the drum 124, the higher the level of the discharged amount. The control unit 141 determines the amount of the washing water supplied into the water supply tub 122 and the amount of washing water sprayed into the drum 124 during the filtering and rinsing according to the sensed laundry amount,

The initial water supply is to supply wash water mixed with laundry detergent into the tub 122. The laundry detergent mixed with the laundry detergent can be supplied after supplying the untreated laundry detergent at the initial water supply. The control unit 141 opens the free valve of the water supply valve unit 131 so that the wash water is not mixed with the detergent in the detergent box 133 but flows into the tub 122 through the water supply pipe 134, The washing water may be mixed with the laundry detergent in the detergent box 133 and then introduced into the tub 122 through the water supply pipe 134. The initial water supply control unit 141 opens the second water supply valve 131b to spray the washing water not mixed with the laundry detergent into the drum 124 through the second nozzle 150, The washing water may be mixed with the laundry detergent in the detergent box 133 and then introduced into the tub 122 through the water supply pipe 134. The hot water valve of the water supply valve unit 131 is opened at the time of the initial water supply, and hot water can be introduced into the tub 122.

The initial water supply is continued until the target water level is reached. The target water level is determined by the control unit 141 according to the selected volume or the selected course before the initial water supply. The water level of the washing water is preferably measured by the water level sensor 121. When the washing water flows into the tub 122 to the target water level, the control unit 141 closes the valve of the water supply valve unit 131 to complete the initial water supply.

The control unit 141 drives the driving unit 113 to rotate the drum 124 so that the washing water mixed with the laundry detergent is uniformly wetted on the cloth and the laundry detergent is dissolved. The control unit 141 controls the pump 136 to circulate the washing water along the circulation hose 137 and be injected into the drum 124 through the first nozzle 127. [

The additional water is to supply the washing water to the tub 122 to the target water level because the water level is lowered to the target water level by soaking the washing water in the water. When the controller 141 opens the various valves of the first water supply valve 131a, the second water supply valve 131b or the water supply valve unit 131, the wash water is supplied from the external water source through the water supply pipe 134, 2 nozzle 150. The nozzle 150 is a nozzle. The controller 141 closes various valves of the first water supply valve 131a, the second water supply valve 131b or the water supply valve unit 131 to complete the additional water supply.

The laundry 212 rotates the drum 124 containing the laundry having the wash water mixed with the laundry detergent. The control unit 141 controls the driving unit 113 to rotate the drum 124 at various speeds or directions so that the bag is lifted. By applying the mechanical force such as a bending force, a frictional force or an impact force to the bag, Remove. In order to prevent overheating of the driving unit 113 during the washing 212, the control unit 141 may restrain the driving of the driving unit 113 at intervals of several seconds to several minutes.

Steam may be injected into the drum 124 at the time of the washing 212 depending on the washing course or the user's choice. The control unit 141 operates the pump 136 to circulate the washing water along the circulation hose 137 and be injected into the drum 124 through the first nozzle 127.

The controller 141 opens the bleed valve of the water supply valve unit 131 to mix the washing water with the bleaching agent in the detergent box 133 and then into the tub 122 through the water supply pipe 134 . It is preferable that the supply of the washing water containing the bleaching agent is performed as the last step of the washing 212 immediately before the washing 212 is finished.

The drain water 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 drainage hose 138. [

The complex process 220 is a process for removing the remaining detergent of the fabric and dewatering the fabric, which is a combination of a rinsing cycle and a dewatering cycle in a general washing method. The complex stroke 220 includes a bubble dispersion 221, a filtration rinse 222, a simple dehydration 223, a water supply 224, a rinse 225, a drain 226, a bubble dispersion 227, a filtration rinse 228, And a main dehydration 229. The control unit 141 preferably displays a rinsing and / or dehydrating icon in the progress indication of the display unit 114a.

The bubble dispersion 221 repeats the deceleration of the drum 124 while maintaining the constant velocity after acceleration to disperse the bubble. A phenomenon that the bag is biased to one side by the tangling of the laundry 212 or the like causes eccentricity in which one side is heavier with respect to 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 dispersed.

The bubble dispersion 221 is a cycle in which the drum 124 is decelerated while maintaining the constant velocity after accelerating the drum 124 as shown in FIG. During the bubble dispersion 221, the drum 124 accelerates to maintain the speed at which the bombarding the bomb drum 124 is rotated for a certain period of time. Preferably, during the bubble dispersion 221, the drum 124 maintains a maximum speed of 108 rpm which causes no noise or failure due to eccentricity. The spinning rinsing 222 may be performed after accelerating the spinning nozzle 221 after the spinning speed of the spinning drum is maintained at the drum 124 for a predetermined period of time and then accelerated or the spinning speed is maintained for a predetermined time.

At the time of the bubble dispersion 221, the control unit 141 measures the amount of discharged paper based on the deceleration time of the drum when decelerating the drum 124, measures the amount of eccentricity based on the amount of change in the rotational speed of the drum after accelerating the drum 124 do.

The discharge amount is calculated by measuring the deceleration time when the control unit 141 decelerates the drum 124 as described above. The longer the deceleration time of the drum 124, the higher the level of the discharged amount. According to the embodiment, the control unit 141 may calculate the discharge amount by measuring the acceleration time when accelerating the drum 124. [

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

The control unit 141 determines whether the amount of eccentricity is within the tolerance due to the difference between the speed change amount of the drum 124 and the reference speed variation amount. The reference speed change amount depends on the amount of waste. The control unit 141 stores an eccentricity table for the reference speed change amount in accordance with the amount of discharged.

The control unit 141 can accelerate or decelerate the drum 124 according to the amount of eccentricity. That is, the controller 141 can adjust the acceleration to accelerate or decelerate the drum 124 according to the amount of eccentricity. The control unit 141 may stop the drum 124 when the eccentricity of the bobbin is excessive.

The control section 141 repeats acceleration and deceleration of the drum 124 in accordance with the amount of eccentricity. The controller 141 continuously accelerates and decelerates the drum 124 when the amount of eccentricity is over the allowable value. If the deceleration of the drum 124 is continuously repeated because the eccentricity is greater than the allowable value, the controller 141 can stop the acceleration and deceleration. That is, when the acceleration and deceleration of the drum 124 continue to be repeated more than the allowed number of times, the control unit 141 preferably notifies the display unit 114a of the abnormality and then stops the drum 124. The control unit 141 accelerates the drum 124 to perform the filtering and rinsing 222 when the amount of eccentricity is within the allowable range.

The filtration rinsing unit 222 spray the washing water not mixed with the detergent into the drum when the drum 124 rotates to rotate on the drum, thereby allowing the washing water to permeate the washing water, thereby removing residual detergent and contamination. The control unit 141 controls the driving unit 113 to rotate the drum to be attached to the fog drum 124 and to open the second water supply valve 131b so that the washing water is supplied to the second nozzle 150 And is then sprayed into the drum 124. At this time, the control unit 141 preferably operates the pump 136 to discharge the wash water in the tub 122 to the outside along the drain hose 138.

During the filtration rinse 222, the drum 124 rotates at 1G or more so as to be attached to the drum. During the filtration rinse 222, the drum 124 is preferably rotated at about 400 rpm. During the filtration rinse 222, the drum 124 may be accelerated to 600 rpm. That is, the drum 124 is accelerated to 600 rpm, and the washing water not mixed with the detergent can be sprayed into the drum before the simple dehydration 223 is performed.

A detailed description of the filtering rinse 222 will be given later with reference to Fig.

The simple dehydration 223 rotates the drum 124 at a high speed so that the washing water soaked in the cloth is discharged. The control unit 141 rotates the drum 124 gradually after rinsing the filter 222 and closes the second water supply valve 131b to perform the simple dehydration 223.

Since the simple dehydration 223 does not need to be dewatered to such an extent that the boll is dried, the drum 124 preferably rotates at about 750 rpm. The controller 141 may intermittently operate the pump 136 to discharge the wash water in the tub 122 to the outside along the drain hose 138 at the time of simple dewatering 223. [

The simple dehydration 223 accelerates the drum 124 without stopping or decelerating the drum 124 in the filtration rinse 222, thereby eliminating the need for bubble dispersion, thereby shortening the overall time and reducing the bubble damage.

The water supply 224 supplies the wash water from the external water source into the tub 122 in the same manner as the water supply 211 of the above-described washing cycle 210. The controller 141 opens the first water supply valve 131a and the free valve so that the washing water is mixed with the fabric softener in the detergent box 133 and then flows into the tub 122 through the water supply pipe 134 do.

The rinsing 225 rotates the drum 124 containing the fabric with the wash water mixed with the fabric softener. The control unit 141 controls the driving unit 113 to rotate the drum 124 at various speeds or directions so as to repeatedly rise and fall. The drum unit 124 is then lowered to apply mechanical force such as a bending force, a frictional force, Residual detergent and contamination are removed. The controller 141 operates the pump 136 so that the wash water is circulated along the circulation hose 137 and injected into the drum 124 through the first nozzle 127. [

The drainage 226 discharges the wash water in the tub 122 to the outside of the cabinet 111 as in the case of the drainage 213 of the washing cycle 210 described above.

The bubble dispersion 227 disperses the bubble by repeating the deceleration of the drum 124 maintaining the constant velocity after the acceleration, like the bubble dispersion 221 described above.

The filtration rinse 228, like the above-described filtration rinse 222, rotates the drum 124 to spray laundry water not mixed with the laundry detergent in the state that the laundry is attached to the drum, The contamination is removed.

The present dewatering 229 causes the drum 124 to rotate at a high speed such that the washing water that has soaked in the dewatering water is discharged as in the case of the simple dewatering 223. The control unit 141 rotates the drum 124 gradually after rinsing the filter 228 and closes the second water supply valve 131b to perform the dehydration 229. However, it is preferable to rotate the drum 124 to the maximum speed of 1000 rpm or more so that the bobbins are dried as much as possible.

The controller 141 may intermittently operate the pump 136 to discharge the washing water in the tub 122 to the outside along the drainage hose 138 at the time of the dewatering 229.

This dehydration 229 accelerates the drum 124 without stopping or decelerating the drum 124 in the filtration rinse 228, thereby eliminating the need for bubble dispersion, thereby shortening the overall time and reducing the bubble damage.

After the main dewatering 229, drying can be performed by supplying hot air into the drum 124 to dry the blanket.

11 is a view showing a state in which the filter rinse is performed in the washing method according to an embodiment of the present invention.

11, the second water supply valve 131b is opened when the drum rotates so that the filtration rinsing 222, 228 adheres the foam L to the drum 124, so that the wash water flows into the second nozzle 150, To be sprayed into the drum 124.

The drum 124 is preferably rotated at about 400 rpm and the second nozzle 150 is preferably sprayed to the area A of the inner surface 124a and the rear surface 124b of the drum 124 . The sprayed washing water permeates the bag L and residual detergent and contamination are removed.

The controller 141 operates the pump 136 so that the wash water in the tub 122 is discharged to the outside along the drain hose 138.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

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

2 is a sectional view of the washing machine of FIG. 1;

3 is an internal structural view of the washing machine of FIG.

FIG. 4 is a view showing a region where the first nozzle or the second nozzle of the washing machine according to the embodiment of the present invention is sprayed or sprayed.

5 is a view showing a gasket of a washing machine, a first nozzle and a second nozzle 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.

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

FIG. 10 is a view showing the rotational speed of the multiple-stroke drum in the washing method shown in FIG.

11 is a view showing a state in which the filter rinse is performed in the washing method according to an embodiment of the present invention.

Claims (17)

A washing and draining step for draining the wash water mixed with the laundry detergent contained in the tub disposed outside the drum accommodating the can to the outside of the cabinet; A first boll dispersion step in which the bollard is dispersed by repeating the deceleration of the drum while maintaining a constant speed after acceleration; The drum rotates faster than the first collecting step so that the can is rotated around the drum and the wash water not mixed with the detergent supplied from the external water source into the drum is sprayed and the washing water in the tub is discharged to the outside of the cabinet A first filtration rinse step; A simple dewatering step of stopping the washing water spray without decelerating the drum after the first filtering and rinsing step and dewatering the drum by accelerating the drum; A water supply step of supplying washing water mixed with a fabric softener into the tub after the drum stops; A rinsing step in which the drum rotates and the bag drops repeatedly; A rinsing and draining step of discharging washing water mixed with the fabric softener in the tub to the outside of the cabinet; A second bubble dispersion step in which the bubble is dispersed by repeating the deceleration of the drum while maintaining a constant velocity after acceleration; The drum rotates faster than the second collecting step so that the can is rotated around the drum and wash water not mixed with the detergent supplied from the external water source into the drum is sprayed and the washing water in the tub is discharged to the outside of the cabinet A second filtration rinse step; And And a main dewatering step of dewatering the blanket by accelerating the drum while the washing water spray is stopped without decelerating the drum after the second filtration rinse step. delete delete delete The method according to claim 1, Wherein the drum accelerates in the first and second distributing steps to decelerate the bag after maintaining the speed at which the bag rotates with respect to the drum. 6. The method of claim 5, Wherein the drum accelerates at 108 rpm and decelerates in the first and second collecting steps. delete The method according to claim 1, Wherein the drum is rotated at 400 rpm in the first and second filtration rinse steps. delete The method according to claim 1, Wherein the washing water is sprayed into the vortex in the first and second filtration rinsing steps. The method according to claim 1, Wherein the washing water is sprayed to the inner side surface and the rear surface of the drum in the first and second filtration rinse steps. delete cabinet; A drum disposed in the cabinet and rotated with a bag inserted therein; A tub disposed in the cabinet and disposed inside the drum to receive wash water; A water supply valve unit for supplying wash water from an external water source; A detergent box connected to the water supply valve unit and containing a detergent and a part of the wash water supplied by the water supply valve unit is mixed with the detergent; A water supply pipe connected to the detergent box to allow the washing water mixed with the detergent to flow into the tub; A driving unit for rotating the drum; A nozzle connected to the water supply valve unit for spraying washing water not mixed with detergent into the drum; A pump for discharging washing water stored in the tub to the outside; And And a control unit for controlling the water supply valve unit, the driving unit, and the pump, Wherein, A washing and draining step of controlling the pump to discharge washing water mixed with laundry detergent in the tub to the outside of the cabinet, A first bollarding step of repeating a step of decelerating and decelerating the drum so as to disperse the bollard by controlling the driving unit, The controller controls the driving unit to rotate the drum faster than the first collecting step so that the can is rotated around the drum and controls the water supply valve unit so that the washing water not mixed with the detergent supplied from the external water source into the drum A first filtering and rinsing step of spraying the laundry through the nozzle and controlling the pump to discharge the washing water in the tub to the outside of the cabinet, A simple dewatering step of controlling the water supply valve unit without decelerating the drum after the first filtration rinsing step to stop the washing water spray and to accelerate the drum to dewater the dewater by controlling the driving unit, A water supply step of supplying the washing water mixed with the fabric softener into the tub through the water supply pipe by controlling the water supply valve unit after stopping the drum by controlling the driving unit, A rinsing step of controlling the driving part to rotate the drum so as to drop the bobbin repeatedly, A rinsing drainage step of controlling the pump to discharge the washing water mixed with the fabric softener in the tub to the outside of the cabinet, A second boll dispersing step of repeating a step of decelerating and decelerating the drum at a constant speed by controlling the driving unit so that the bollard is dispersed, The controller controls the driving unit to rotate the drum faster than the first collecting step so that the can is rotated around the drum and controls the water supply valve unit so that the washing water not mixed with the detergent supplied from the external water source into the drum A second filtering and rinsing step of spraying the water through the nozzle and controlling the pump to discharge the washing water in the tub to the outside of the cabinet; Wherein the controller controls the water supply valve unit without decelerating the drum after the second filtration rinse step to stop the washing water spray and accelerate the drum to dewater the water by controlling the driving unit. 14. The method of claim 13, Wherein the nozzle sprays the wash water on an inner side surface and a rear surface of the drum. 15. The method of claim 14, The nozzle A dome having one side formed into a hemispherical shape and having a receiving space formed therein; A core formed in the accommodating space and formed of a twisted plate to form the accommodating space and a plurality of twisted flow paths to convert wash water passing through the flow path into eddy current; And And a spray nozzle cap sprayed with wash water passing through the core and the flow path formed by the accommodation space. delete delete

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