KR101716175B1 - Apparatus and method for treating laundry - Google Patents

Abstract

The present invention relates to a laundry processing apparatus, which comprises a cabinet, a tub provided in the cabinet, a drum rotatably provided in the tub, a drum accommodated in the tub, a gasket provided between the cabinet and the tub, A plurality of spray nozzles for spraying wash water upward in the direction toward the inside of the drum, and a pump for pumping the wash water through the plurality of spray nozzles, thereby improving laundry processing performance.

Description

[0001] Apparatus and method for treating laundry [

The present invention relates to a laundry processing apparatus.

Generally, a laundry processing apparatus separates contaminants from clothing, bedding, and the like (hereinafter referred to as "laundry") by using physical action such as chemical decomposition of water and detergent and friction between water and laundry A washing machine, a dryer for dewatering and drying wet laundry, a heater for spraying heated steam to prevent allergy caused by laundry, and a refresher for washing laundry easily, Various devices are collectively referred to.

When the laundry processing apparatus processes the laundry, the washing water is circulated. At this time, the washing water is circulated through the circulation pump. There was a limit in spraying the washing water in the circulation of the washing water.

The object of the present invention is to provide a laundry processing apparatus for effectively wetting laundry.

A washing machine according to the present invention comprises a cabinet, a tub provided in the cabinet, a drum rotatably provided in the tub to receive laundry, a gasket provided between the cabinet and the tub, And a pump for pumping the washing water to the plurality of the spray nozzles. The plurality of spray nozzles are provided in the drum.

The laundry processing apparatus of the present invention includes a cabinet, a tub installed in the cabinet, a drum accommodated in the tub and rotatably installed in the tub, a gasket provided between the cabinet and the tub, And a plurality of injection nozzles provided in the gasket so that wash water is sprayed toward the inside of the drum in the direction of the arrow.

The laundry processing apparatus of the present invention has one or more of the following effects.

First, the washing water can be uniformly sprayed into the drum.

Second, washing water can be sprayed in a plurality of directions toward the inside of the drum.

Third, the washing water can be sprayed upward toward the inside of the drum.

Fourth, washing water can be sprayed with a strong impact toward the laundry.

Fifth, the washing water is sprayed to the laundry, and the washing water passes through the laundry to improve the washing and rinsing performance.

Sixth, washing water is sprayed on the laundry, and washing and rinsing performance can be improved by causing the laundry to breathe.

Seventh, the injection nozzle is provided in the lower part of the gasket, and the flow rate of the washing water sprayed close to the pump is increased.

Eighth, it is possible to perform the washing performance without washing laundry which is not in contact with the washing water when washing or rinsing.

Ninthly, the flow of laundry is strengthened, so that laundry variation during washing or rinsing of a large amount of laundry is reduced.

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.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining a clothes processing apparatus according to embodiments of the present invention.

1 is a perspective view illustrating a laundry processing apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional side view of the laundry processing apparatus shown in FIG. 1 taken along line A-A. FIG. 3 illustrates a structure in which wash water is sprayed in the laundry processing apparatus according to an embodiment of the present invention. 4 is a cross-sectional view taken along line B-B shown in Fig.

1 to 4, a laundry processing apparatus 100 according to an embodiment of the present invention includes a cabinet 110, a tub 121 disposed inside the cabinet for storing wash water supplied from the outside, A water supply valve 125 for supplying washing water supplied from an external water source, and a water supply valve 125 for supplying washing water in the tub, And drain hose 151 and pump 160 for drainage.

The cabinet 110 forms an outer appearance of the laundry processing apparatus 100 and includes a cabinet body 111 having a front surface and an upper surface opened and a laundry access hole 119 for allowing laundry to enter and exit, A control panel 115 provided on the upper side of the front cover 112 to provide a user interface and a top cover 116 provided on the upper side of the cabinet body.

The front cover 112 is rotatably provided with a door 113 for opening and closing the laundry access hole 119. The control panel 115 is provided with a display unit 117 for displaying various status information of the laundry processing apparatus 100 and an input unit 118 for receiving various control commands such as a washing course, Respectively.

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 laundry. The operation of the washing machine is largely divided into a washing cycle, a rinsing cycle, and a dewatering cycle, and watering, washing, rinsing, draining, dewatering or drying is performed in each of the steps.

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 front cover 112. The detergent in the detergent box 133 is mixed with the washing water when the washing water is supplied and flows into the tub 121.

The tub 121 is supported by a damper 126 by hanging on a top cover 116 by a spring 124 so as to buffer vibrations generated when the drum 122 rotates. The drum 122 is rotated by the driving unit 130, and a lifter 135 for lifting the laundry is provided on the inner side.

A gasket 140 is provided between the cabinet 110 and the tub 121. One side of the gasket 140 is coupled to the cabinet 110, and the other side is coupled along the periphery of the open front surface of the tub 121. Thus, the washing water stored in the tub 121 is prevented from leaking between the tub and the cabinet 110. Further, the gasket 140 is formed to have a wrinkle along the circumference, so that the vibration of the tub 121 is buffered.

4, the gasket 140 includes a tub connecting portion 141 to be fastened to the tub 121, a cabinet connecting portion 144 to be fastened to the cabinet 110, A wrinkle portion 143 for buffering vibration, and a groove portion 142 formed by the wrinkle portion.

The connector 162 is coupled through the groove 142 and the spray hole 165 may be formed such that a part of the washing water flowing toward the spray nozzles 170 and 180 through the connector is sprayed toward the groove. The washing water sprayed through the spray hole 165 flows downward along the groove portion 142 to wash the residual detergent and contaminants separated from the laundry. Therefore, it is preferable that a drain hole (not shown) is formed in the lower portion of the gasket 140 so that wash water drained down along the groove portion 142 can be drained.

The gasket 140 may be integrally formed of one material but the tub fastening portion 141 is formed of a rigid material to secure the fastening strength with the tub 140 and sufficient rigidity, The cabinet coupling part 144 may be formed of a material having elasticity.

The gasket 140 is provided with a gasket 140 to prevent the laundry from being poured when the laundry is released by the rotation of the drum 122 and is caught between the gasket and the cabinet 110 or when the door 113 is opened after the washing is completed, The protrusion 145 protruding from the inner periphery of the protrusion 145 may be formed.

The gasket 140 is provided with a first injection nozzle 170 and a second injection nozzle 180 so as to circulate the washing water out of the tub 121 and inject the water into the drum 122. In the present embodiment, the washing water is sprayed by the two spray nozzles 170 and 180, but the scope of the present invention is not limited thereto. The washing water may be sprayed into the drum 122 in a plurality of directions Or more of the injection nozzles may be provided.

In this embodiment, the two injection nozzles 170 and 180 are provided in the gasket 140, but they may be provided at various positions capable of injecting into the drum 122. In other words, the spray nozzles 170 and 180 are disposed in front of the drum 122, so that the washing water can be sprayed into the drum 122. Preferably, the spray nozzles 170 and 180 are provided at the lower portion of the front of the drum 122 to spray wash water upward.

The washing water in the tub 121 is pumped by the pump 160 and then injected into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180 to circulate the washing water. In this embodiment, drainage and circulation of wash water are simultaneously performed by one pump 160. However, it is also possible that a pump for drainage and a pump for circulation are separately provided.

The washing water pumped by the pump 160 is distributed by the distributor 161 and is supplied to the first injection nozzle 170 and the second injection nozzle 163 through the first injection path 162 and the second injection path 163, 180). At this time, the pump 160 may pump the washing water so that the washing water can be injected simultaneously by the first injection nozzle 170 and the second injection nozzle 180. Accordingly, the laundry is effectively sprayed in both directions toward the laundry, and the laundry can be treated with a certain performance irrespective of the direction of rotation of the drum 122.

On the upper side and / or the lower side of the tub 121 are provided heavier waists 155 and 156 so that the stability of the tub can be maintained by the inertia due to the weight of the waiter when the drum is rotated. The waiter 155, 156 may include an upper waiter 155 provided on the upper side of the tub and a lower waiter 156 provided on the lower side of the tub.

The injection nozzles 170 and 180 may be connected to the gasket 140 by a connector 164, respectively. 4 illustrates a connector 164 connecting the first injection nozzle 170 to the gasket 140. It is needless to say that the second injection nozzle 180 may be connected to the gasket with the same structure. The connector 164 is provided so as to pass through the gasket 140 to connect the first injection path 162 and the first injection nozzle 170.

In this embodiment, the first injection nozzle 170 and the second injection nozzle 180 are disposed on both sides with the lower waiter 156 interposed therebetween. The reason for dispositioning as described above is to prevent the respective connectors 164 connected to the first injection nozzle 170 and the second injection nozzle 180 from interfering with the lower waiter 156, The arrangement of the first injection nozzle 170 and the second injection nozzle 180 is not limited to this, in the case where the connector 164 is not provided in the gasket 140, unlike the example.

The first injection nozzle 170 and the second injection nozzle 180 are arranged such that they are symmetrical with respect to a vertical symmetry line passing through the center of the gasket 140 such that the wash water is evenly injected into the drum 122. [ May be provided on the left and right sides, respectively, with respect to the line.

Due to the above structure, the first injection nozzle 170 is provided at the lower left of the gasket 140 to spray the washing water to the area from the upper left to the lower right toward the inside of the drum 122, The spray nozzle 180 is provided at a lower right portion of the gasket 140 to spray washing water to an area ranging from the upper right portion to the lower left portion of the drum.

5A and 5B illustrate an embodiment of a spray nozzle applied to the laundry treatment apparatus of the present invention. 5A and 5B, the spray nozzle 170 includes an inlet 171 through which the wash water flows, a first surface 172 formed so that the spray direction of the wash water is directed toward the inside of the drum 122, , And second and third surfaces (173, 174) extending respectively on both sides of the first surface to define an ejection width of the wash water.

The washing water pumped by the pump 160 and introduced through the inlet 171 is formed on the first surface 171h which is formed so as to face the outlet end 171h side of the inlet and which extends obliquely toward the inside of the drum 122 172 and is sprayed. At this time, since the washing water is guided along the first surface 172 by the pumping pressure of the pump 160, the portion of the washing water that is sprayed is spread out so as to form a substantially linear shape. Accordingly, even if the same amount of wash water is sprayed, the spray can be performed over a wide area, and the first spray nozzle 170 and the second spray nozzle 180 are provided on both sides of the gasket 140 as in the embodiment of the present invention, The effective injection into a wider area is possible.

On the other hand, the first surface 172 is formed so as to be gradually widened toward the outlet end, and the second surface 173 and the third surface 174 extend from both sides of the first surface. Accordingly, the second surface 173 and the third surface 174 define the spray width of the washing water to be sprayed, the second surface forms the lower boundary of the washing water to be sprayed, Thereby forming an upper boundary of the number. At this time, the second surface 173 and the third surface 174 are arranged such that the jetting area between the upper boundary st2 and the lower boundary st3 of the sprayed washing water is the drum 122, respectively.

On the first surface 172, a plurality of ribs 175 may be formed along the flow direction of the wash water. The thickness of the washing water guided along the first surface 172 is varied by the plurality of ribs 175. Accordingly, the water stream injected between the adjacent ribs 175 is injected with a thick main injection stream, and a thin water film is formed between the main injection streams.

As the washing water is sprayed in the above-described manner, the contaminants that come into the laundry by the main injection flow can be treated with a strong impact, washing of the laundry is performed, and the washing power is improved. It can be sufficiently secured.

6 shows another embodiment of the spray nozzle applied to the laundry treatment apparatus of the present invention. 7 is a partial enlarged view of a portion C in Fig. 8 is an enlarged cross-sectional view of the portion E cut along the line D-D in FIG.

 Referring to FIGS. 6 to 8, the injection nozzles 270 and 280 are formed integrally with the gasket 240 in this embodiment, which is different from the above-described embodiment. The injection nozzles 270 and 280 are formed protruding from the gasket 140. The gasket 240 is provided with a gasket flow path 271 for guiding the wash water through the injection nozzles 270 and 280 and the gasket flow path 271 and the injection flow paths 162 and 156 can be connected by the connector 164 .

On the other hand, in this embodiment, a groove 275 is formed on the first surface 275 of the injection nozzle 270, unlike the above-described embodiment. However, the present embodiment and the above-described embodiment are not distinguished from each other due to such structural differences, and ribs 175 may be formed in the injection nozzle 270 of the present embodiment, or grooves (not shown) may be formed in the injection nozzle 170 of the above- 275 may be formed. That is, the structure of the ribs 175 or the grooves 275 is independent of whether the injection nozzle is formed integrally with the gasket, and that any structure can be applied to each embodiment.

FIG. 9 and FIG. 10 are conceptual diagrams showing the shape of the washing water sprayed into the drum by the spray nozzle of the laundry processing apparatus according to the embodiment of the present invention. 11 is a cross-sectional view of the washing water sprayed for explaining the spraying area (a) of washing water sprayed by the first spraying nozzle and the spraying area (b) of washing water sprayed by the second spraying nozzle will be.

The first injection nozzle 170 and the second injection nozzle 180 are provided on both sides of the lower portion of the gasket, which is a range not exceeding a half height of the gasket 140. The first injection nozzle 170 injects wash water upward in the left lower portion of the gasket 140 toward the inside of the drum 122 and the second injection nozzle 180 injects the inside of the drum in the right lower portion of the gasket Spray three turbid water upward. The laundry 10 lifted and dropped by the lifter 135 as the drum 122 rotates passes through the jetting region formed by the first jetting nozzle 170 and the second jetting nozzle 180, . The spray nozzle according to the present invention improves the laundry processing performance by treating the laundry with a shock having a strong impact of the washing water sprayed upward in the upward direction toward the falling laundry. Accordingly, in order to achieve such an effect, it is necessary to take a washing motion in which the laundry is lifted along the inner side of the drum and then dropped again. This will be described later in more detail with reference to FIG. 13 and FIG.

On the other hand, the washing water sprayed by the spray nozzle 170 is transferred between the central injection flow st1 that meets the rotation axis C of the drum 122 and the upper boundary injection flow st2 forming the upper boundary of the sprayed washing water The upper injection angle? 1 is set to be larger than the lower injection angle? 2, which is an angle between the central injection flow st1 and the lower boundary injection flow st3 forming the lower boundary of the sprayed wash water. Thus, more intense spraying can be achieved in the upper region in the drum 122. [

The washing water injected by the first injection nozzle is discharged from the upper left portion of the drum 122 due to the positional characteristics of the first injection nozzle 170 and the second injection nozzle 180 provided at the lower portion of the gasket 140, And the washing water sprayed by the second spray nozzle forms an oblique line (1) extending from the lower right portion to the upper left portion of the drum. Looking at this on a predetermined projection plane T perpendicular to the axis of rotation of the drum 122, the projection plane S and the projection plane T form a line l and meet.

11, the washing water injected by the first injection nozzle 170 is directed from the second quadrant II to the fourth quadrant IV on the projection plane, , And the washing water jetted by the second jetting nozzle 180 forms a slanting line extending from the first quadrant I to the third quadrant on the projection plane T. [ As a result, the washing water injected by the first injection nozzle 170 and the second injection nozzle 180 injects washing water toward all of the first, second, third and fourth quadrants I, II, III and IV . From the viewpoint of the inside of the drum 122 again, it means that the wash water can be uniformly sprayed into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180.

12 is a flowchart illustrating a method of processing laundry according to an embodiment of the present invention.

Water is supplied during the washing or rinsing cycle (S210). The operation of the washing machine is largely divided into a washing cycle, a rinsing cycle, and a dewatering cycle, and watering, washing, rinsing, draining, dewatering or drying is performed in each of the steps. The washing process is a process of removing contamination from the laundry by rotating the drum 122 after wetting the laundry with mixed laundry detergent. The rinsing step is a step of washing the residual laundry detergent of the laundry by rotating the drum 122 after wetting the laundry with the laundry softener mixed with the fabric softener.

The water supply is to supply the washing water from the external water source into the tub 121. When the water supply valve 125 is opened at the time of water supply, the wash water flows into the tub 122 through the detergent box 133 from the external water source. In the detergent box 133, the washing water may be mixed with laundry detergent or fabric softener.

The water supply is continued until the target water level is reached, and the target water level is determined according to the amount of laundry measured before the water supply (hereinafter referred to as the "volume") or the selected course. The drum 122 may be rotated so that the wash water mixed with the laundry detergent at the time of water supply is evenly adhered to the laundry.

When the water supply is completed, the drum 122 rotates (S220). The drum 122 containing laundry is rotated to perform washing or rinsing.

The washing or rinsing is to rotate the drum 122 containing the washing water mixed with the washing detergent or the fabric softening agent. When the driving unit 130 rotates the drum 122, the laundry in the drum is pumped up by the lifter 135 and then dropped. The laundry is dirty or residual detergent is removed due to friction between the laundry and the laundry.

During washing, the drum 122 may rotate at various speeds or directions. A detailed description thereof will be given later with reference to FIG.

The wash water is pumped and injected toward the inside of the drum 122 (S230). The washing water in the tub 121 is pumped by the pump 160 and then injected into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180 when the drum 122 rotates. The washing water pumped by the pump 160 is distributed by the distributor 161 and is supplied to the first injection nozzle 170 and the second injection nozzle 163 through the first injection path 162 and the second injection path 163, 180). At this time, the pump 160 may pump the washing water so that the washing water can be injected simultaneously by the first injection nozzle 170 and the second injection nozzle 180.

The first injection nozzle 170 is provided at a lower left portion of the gasket 140 to spray wash water into the region from the upper left to the lower right toward the inside of the drum 122, The washing water is sprayed to the area from the upper right portion to the lower left portion of the substantially drum. It is preferable that the first injection nozzle 170 and the second injection nozzle 180 inject wash water upward in the direction of the falling laundry.

FIG. 13 is a view showing various drum motions in a laundry processing method according to an embodiment of the present invention.

13A shows a state in which the driving unit 130 rotates the drum 122 in a predetermined direction so that the laundry is lifted at the lowest position of the drum and falls at about half of the drum height (hereinafter, referred to as "tumbling motion" Quot;). In the tumbling motion, the drum 122 continuously rotates at about 45 rpm, and the laundry in the drum 122 is washed by the impact force and the frictional force.

13B shows a state in which the driving unit 130 rotates the drum 122 in a predetermined direction so that the laundry is lifted at the lowest position of the drum and moves downward at a height not exceeding half the height of the drum Quot; motion "). In the rolling motion, the drum 122 continuously rotates at a speed of about 40 rpm or less, and the laundry in the drum 122 falls down as it rolls and is cleaned by the bending force and the frictional force.

13C shows a state in which the driving unit 130 rotates the drum 122 in different directions so that the laundry is lifted at the lowest position of the drum and moves downward about half of the height of the drum (hereinafter referred to as "swing motion Quot;). In the swing motion, the drum 122 rotates in different directions below about 40 rpm. The laundry in the drum 122 drops as it rolls and is cleaned by the bending force and the frictional force.

13D shows a state in which the driving unit 130 rotates the drum 122 in a predetermined direction so that the laundry is lifted at the lowest position of the drum and drops at the vicinity of the apex of the drum (hereinafter referred to as "step motion" ). In the step motion, the drum 122 rotates at about 60 rpm or more to raise the laundry. After the laundry rises above half of the drum height, the driving unit 130 brakes the drum 122, and the laundry falls from the vicinity of the apex of the drum. After the laundry falls, the drum 122 rotates in the same direction to raise the laundry. The laundry in the drum 122 is washed by a high impact force using a drop.

FIG. 13E is a squeezing motion in which the driving unit 130 swiftly changes the speed of the drum 122 so that laundry is gathered and spread. In the crimping motion, the drum 122 changes at a speed of about 100 rpm at a speed of about 50 rpm, so that the laundry is stuck inside the drum and then repeatedly dropped. The flow of the laundry is strengthened so that the washing deviation is reduced and the washing water is evenly contacted. In addition, when the laundry is adhered to the inside of the drum, the washing water dewatered in the laundry is discharged like a squeeze, so that the laundry is discharged as if the laundry is contaminated and when the laundry is rinsed, the laundry detergent remains. Further, the laundry is stuck on the inside of the drum and is repeatedly dropped so that the user can visually check the flow of the laundry.

It is preferable that the wash water is pumped by the pump 160 and then injected into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180 when each of the above described drum motions is performed. It is preferable that the first injection nozzle 170 and the second injection nozzle 180 inject wash water upward in the direction of the falling laundry.

FIG. 14 is a view showing the crimping motion in the laundry processing method according to an embodiment of the present invention.

In the washing method according to an embodiment of the present invention, the compression motion accelerates the drum 122 at a high speed during a washing or rinsing operation so that the laundry 10 in the drum rotates inside the drum and then decelerates the drum, This is a motion that repeats the falling within the drum at a fast cycle.

14 (a), when the drum 122 rotates at a high speed, the laundry 10 in the drum is stuck inside the drum and rotates. When the drum 122 rotates at about 100 RPM, the laundry 10 is squeezed into the drum by the centrifugal force and rotated. It is preferable that the laundry 10 is rotated at a proper speed and time so as to spread evenly inside the drum and rotate.

At this time, it is preferable that the wash water is pumped by the pump 160 and then injected into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180. It is preferable that the first injection nozzle 170 and the second injection nozzle 180 inject wash water upward in the direction of the falling laundry.

In FIG. 14 (b), when the drum 122 decelerates, the laundry 10 falls from the inside of the drum. When the laundry 10 decelerates at a speed at which centrifugal force does not act on the laundry 10, the laundry is dropped by gravity and the drum rotates, so that the laundry flows and evenly mixes.

At this time as well, it is preferable that the wash water is pumped by the pump 160 and then injected into the drum 122 by the first spray nozzle 170 and the second spray nozzle 180.

14 (c), when the drum 122 is completely decelerated, the laundry 10 is collected at the center of the drum. When the drum 122 is rotated at about 50 RPM, the laundry 10 is gathered at the center of the drum.

Thereafter, the drum 122 is accelerated again so that the laundry 10 gathered as shown in FIG. 14 (a) spreads evenly inside the drum and rotates.

It is preferable that each of the above-described steps is repeated at a fast cycle. It is preferable that the period in which acceleration and deceleration are repeated is 1 second to 4 seconds. The time to accelerate from 50 rpm to 100 rpm is 2 seconds or less, preferably about 1.2 seconds. The time for deceleration from 100 rpm to 50 rpm is 1 second or less, preferably about 0.5 seconds.

FIG. 15 is a flowchart showing a method for processing laundry according to another embodiment of the present invention.

The amount of laundry contained in the drum 122 is detected (S410). When the user selects a washing course through the input unit 118 and inputs a washing start button, the washing cycle is started to detect the laundry amount. The laundry course selected by the user may be a laundry course in which the crimping motion is performed. The user can select a particular laundry course where the crimping motion is performed when trying to wash bulk laundry.

Bulk sensing can be implemented in a variety of ways or devices. In an embodiment of the present invention, the driving unit 130 rotates the drum 122 at a constant speed for a predetermined period of time, and then measures the deceleration time to detect the amount of the drum. The longer the deceleration time of the drum 122, the higher the level of the discharged amount.

An initial series is performed (S420). When the water supply valve 125 is opened, the wash water flows into the tub 122 through the detergent box 133 from the external water source. In the detergent box 133, the washing water may be mixed with laundry detergent or fabric softener.

During the water supply is completed or the water supply is performed, the dead space is performed (S430). The threading is a process in which the laundry contained in the drum 122 flows into the tub 121 so that the laundry is immersed in the washing water supplied into the tub 121. [ In general, the droplet ejection is performed by tumbling motion, but the droplet ejection may be performed by the above-described compression motion. The wash water may be pumped by the pump 160 and then injected into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180. [

It is determined whether the quantity is within the set range (S440). It is determined whether or not the detected amount is equal to or higher than a predetermined level and drum motion is determined during the washing operation.

If the quantity is larger than the set range, the general motion is performed (S450), and the compression motion is performed (S460). General motion refers to rolling motion, swing motion, and step motion in addition to the tumbling motion in Fig.

If there is a large amount of laundry, it is not possible to flow the laundry because the laundry is clogged when the ordinary motion is repeated. Therefore, the general motion is performed for a certain period of time and the compression motion is performed. Also, in the case of a small amount of laundry, the laundry adheres to the inside of the drum even at low rpm, so that the crimping motion is not performed well.

The squeeze motion changes the speed of the drum 122 at a high speed to collect laundry and spread the laundry. The flow of the laundry is strengthened so that the washing deviation is reduced and the washing water is evenly contacted. In addition, when the laundry adheres to the inside of the drum, the laundry is dewatered so that the dewatered laundry is discharged as if the laundry is dirty, and the laundry detergent is discharged when the laundry is rinsed. Further, the laundry is stuck on the inside of the drum and is repeatedly dropped so that the user can visually check the flow of the laundry.

It is preferable that the crushing motion is performed for about 10 minutes during the washing cycle, depending on the amount of laundry or the washing course.

In the compressed motion, it is preferable that the wash water is pumped by the pump 160 and then injected into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180. It is preferable that the first injection nozzle 170 and the second injection nozzle 180 inject wash water upward in the direction of the falling laundry.

It is determined whether the general motion and the squeeze motion performance are repeated n times (S470). The normal motion and the crimping motion are repeated n times so that the laundry flows and the washing deviation is eliminated. The number n of repetitions depends on the selected course and the amount of the replenishment.

If normal motion and squeeze motion are repeated n times, simple dehydration is performed (S490). Simple dehydration is the process of discharging the used washing water to the outside.

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

The normal rinsing step is performed until the simple rinsing step S490 and the rinsing step is started by performing the water supplying step S420 again. The washing water supplied at this time is water not mixed with detergent, and a fabric softener can be mixed.

It is preferable that the pressing motion during the rinsing cycle is performed for about 3 minutes although it depends on the amount of laundry or washing course.

It is preferable that each step described above is repeated in the rinsing step, but the execution time of each step or the number of repetition of n times may be changed.

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 laundry processing apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional side view of the laundry processing apparatus shown in FIG. 1 taken along line A-A.

FIG. 3 illustrates a structure in which wash water is sprayed in the laundry processing apparatus according to an embodiment of the present invention. 4 is a cross-sectional view taken along line B-B shown in Fig.

5A and 5B illustrate an embodiment of a spray nozzle applied to the laundry treatment apparatus of the present invention.

6 shows another embodiment of the spray nozzle applied to the laundry treatment apparatus of the present invention.

7 is a partial enlarged view of a portion C in Fig.

8 is an enlarged cross-sectional view of the portion E cut along the line D-D in FIG.

FIG. 9 and FIG. 10 are conceptual diagrams showing the shape of the washing water sprayed into the drum by the spray nozzle of the laundry processing apparatus according to the embodiment of the present invention.

11 is a cross-sectional view of the washing water sprayed for explaining the spraying area (a) of washing water sprayed by the first spraying nozzle and the spraying area (b) of washing water sprayed by the second spraying nozzle will be.

12 is a flowchart illustrating a method of processing laundry according to an embodiment of the present invention.

FIG. 13 is a view showing various drum motions in a laundry processing method according to an embodiment of the present invention.

FIG. 14 is a view showing a crimping motion in the method of treating laundry according to an embodiment of the present invention.

FIG. 15 is a flowchart showing a method for processing laundry according to another embodiment of the present invention.

Claims (22)

cabinet; A tub disposed in the cabinet; A drum rotatably installed in the tub to receive laundry; A gasket provided between the cabinet and the tub; A plurality of spray nozzles disposed at a lower portion of the gasket for spraying wash water upward toward the inside of the drum; And And a pump for pumping the wash water to the plurality of injection nozzles, When defining a predetermined projection plane orthogonal to the rotation axis of the drum, A first injection nozzle arranged at a position corresponding to a fourth quadrant of the projection surface when viewed from the front and injecting washing water in an oblique direction from the second quadrant on the projection surface to the fourth quadrant; And And a second injection nozzle arranged at a position corresponding to a third quadrant of the projection plane when viewed from the front and injecting wash water in an oblique line from a first quadrant to a third quadrant on the projection plane, . The method according to claim 1, Wherein at least one of the first injection nozzle and the second injection nozzle comprises: And a first surface formed so that the spraying direction of the washing water is directed toward the inside of the drum. 3. The method of claim 2, Wherein the jetting surface of the washing water formed by the first surface forms a slanting line on a predetermined projection plane orthogonal to the rotation axis of the drum. The method of claim 3, Wherein at least one of the first injection nozzle and the second injection nozzle comprises: And an injection region between the lower boundary and the upper boundary of the washing water to be sprayed crosses the rotation axis of the drum, A second side extending from one side of the first side to form the lower side; And And a third surface extending from the other side of the first surface to form the upper boundary. 5. The method of claim 4, The washing water sprayed by at least one of the first spray nozzle An upper spray angle, which is an angle between a central spray flow that meets the rotation axis of the drum and an upper boundary jet flow forming an upper boundary of the sprayed wash water, is larger than a lower spray jet angle between the central spray flow and a lower boundary spray flow forming a lower boundary of the sprayed wash water Is larger than the lower side spray angle which is the angle of the lower side spray angle. The method according to claim 1, Further comprising a waiter provided in the gasket, Wherein the first injection nozzle and the second injection nozzle are connected to each other, And the waiter is interposed therebetween. The method according to claim 1, Wherein the first injection nozzle and the second injection nozzle are connected to each other, Wherein the gasket is disposed symmetrically with respect to a vertical symmetry line of the gasket. The method according to claim 1, And a connector for connecting the injection nozzle and the gasket. 9. The method of claim 8, Wherein the connector guides the washing water pumped from the pump to the spray nozzle. The method according to claim 1, The pump includes: And washing water in the tub is poured. The method according to claim 1, The pump includes: And the washing water is pumped to the plurality of injection nozzles at the same time. The method according to claim 1, And a dispenser for distributing the wash water pumped by the pump to each of the spray nozzles. The method according to claim 1, The pump includes: The laundry is accelerated and decelerated, and the laundry is poured into the drum and then dropped. The method according to claim 1, The pump includes: And the laundry is pumped when the laundry in the drum is repeatedly dropped by rotating the drum. delete delete delete delete delete delete delete delete

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