KR101608657B1 - Washing machine - Google Patents

Abstract

The present invention relates to a laundry processing apparatus, which comprises a cabinet, a tub provided 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 an injection nozzle for spraying washing water toward the inside, and the spray nozzle includes a plurality of guide portions which form a curvature on the inner side.

Description

[0001] Washing machine [0002]

The present invention relates to a laundry processing apparatus.

Generally, a laundry processing apparatus separates contaminants from clothes, bedding, etc. (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 for washing laundry, a dryer for dehydrating and drying the wet laundry, a heater for spraying heated steam to prevent allergy caused by laundry, and a refresher for washing laundry easily, Are referred to collectively.

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.

An object of the present invention is to provide a laundry processing apparatus that effectively wipes laundry.

A washing machine according to the present invention includes a cabinet, a tub provided 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 spray nozzle for spraying wash water toward the inside of the drum, wherein the spray nozzle includes a plurality of guide portions which form a curvature on the inner surface.

In addition, the laundry processing apparatus of the present invention includes a cabinet, a tub provided 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 spray nozzle for spraying wash water in a form including a water film formed between a plurality of main injection streams and the main injection streams toward the inside of the drum.

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.

Thirdly, the washing water can be sprayed from the lower side to the upper side 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 protrudes from the inner periphery to form the protrusion 145. The laundry moving by the rotation of the drum 122 bumps against the projection 145 and then bounces back into the drum to prevent the laundry from being detached from the drum.

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 spray nozzle 170 and the second spray nozzle 163 through the first spray path 162 and the second spray path 163, (Not shown). 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 the case where the connector 164 is not provided in the gasket 140. [

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.

The injection nozzles 170 and 180 include a plurality of guide portions which form a bend in the inner surface. The guide portion may be formed in the form of ribs and grooves, and forms a bend in the flow path through which the wash water is guided so that wash water is sprayed in a specific form. A more detailed description will be given later.

5A and 5B illustrate an embodiment of a spray nozzle applied to the laundry treatment apparatus of the present invention. 6 shows the shape of the washing water sprayed by the spray nozzle.

The injection nozzle 170 is provided with an inflow portion 171 through which the washing water flows, a first surface 172 formed so that the spraying direction of the washing water is directed toward the inside of the drum 122, And the second and third surfaces 173 and 174 that define the spraying width of the washing water.

The washing water pumped by the pump 160 and introduced through the inlet 171 is formed so as to face the outlet end 171h side of the inlet portion and is inclined 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 becomes 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. Therefore, the water streams injected by the flow paths 172 formed between the adjacent ribs 175 are injected into the thick main injection streams a1, a2, a3, a4 and a5, Thin water films (b1, b2, b3, b4) are formed. At this time, the ribs 175 should be formed at appropriate heights so that the main injection streams a1, a2, a3, a4, and a5 are not separated but connected by the water films b1, b2, b3, b4. The height h of the rib 175 and the interval w between adjacent ribs may be the same length.

However, the ribs 175 need not always extend along the first surface 172 at a constant height, and may have a gradient such that the height gradually increases toward the outlet end side of the first injection nozzle 170 Do. In this case, the interval w between the ribs adjacent to the end side height h of the rib 175 where the washing water is sprayed may be formed to have the same length.

B2, b3, and b4 formed between the main injection streams a1, a2, a3, a4, and a5 and the main injection flow by the injection nozzles 170, Thus, contaminants on the laundry can be treated with a strong impact by the main injection flow, washing of the laundry is performed, washing power is improved, and the spray area can still be sufficiently secured by the water film.

7 shows another embodiment of the spray nozzle applied to the laundry treatment apparatus of the present invention. The spray nozzle 270 according to the present embodiment includes a plurality of grooves 275 that are embedded from the first surface 272 and extend along the flow direction of the wash water. The groove 275 may be formed to have an arc in cross section.

The washing water sprayed by the spray nozzle 270 will be shaped such that the boundary between the main spray flow and the water film smoothly flows, unlike the washing water sprayed by the spray nozzles 170 and 180 according to the above-described embodiment. Therefore, the emotionally satisfactory satisfaction of the unheated user of the sprayed washing water is improved. It is preferable that the depth d of the groove 275 is formed within 1/5 of the width w of the grooves.

However, the groove 275 is not necessarily required to extend along the first surface 272 at a constant height, and may have a gradient such that the depth of the groove 275 gradually increases toward the outlet end of the injection nozzle 270. In this case, the depth d on the end side of the groove 275 where the washing water is sprayed is preferably formed within 1/5 of the width w of the groove.

The grooves 275 are formed only on the first surface 172 of the injection nozzle 270. Alternatively, grooves may be formed on the surfaces opposite to the first surface 172, It is also possible that the washing water is sprayed between the opposed faces. In this case, the shape of the spray nozzle will be formed in a manner similar to a shape in which the shell is slightly widened, and it is easily predicted that the sprayed washing water will have a wavy cross section.

FIG. 8 shows another embodiment of the spray nozzle applied to the laundry treatment apparatus of the present invention. 9 is a partial enlarged view of a portion C in Fig. FIG. 10 is an enlarged cross-sectional view of the portion E cut along the line D-D in FIG.

Referring to FIGS. 8 to 10, the injection nozzles 370 and 380 are formed integrally with the gasket 240 in this embodiment, which is different from the above-described embodiments. The injection nozzles 370 and 380 are formed protruding from the gasket 240. The gasket 240 is provided with a gasket flow path 371 for guiding the wash water through the spray nozzles 370 and 380 and the gasket flow path 371 and the spray flow paths 162 and 156 can be connected by a connector 164 .

On the other hand, in this embodiment, a groove 275 is formed on the first surface 372 of the injection nozzle 370. However, it is needless to say that the rib 175 may be formed in the spray nozzle 370. [

On the other hand, the first injection nozzle 270 is formed to protrude from the inner periphery of the gasket 140. Because of this shape of the first jetting nozzle 270, the laundry moving by the rotation of the drum 122 bumps against the first jetting nozzle 270 and then bounces back into the drum, thereby preventing the laundry from being separated from the drum And the laundry is prevented from being poured out when the door 113 is opened after the completion of washing.

11 and 12 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. 13 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 The washing water is sprayed in the upward direction. 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 strong impact applied by spraying the washing water in the upward direction toward the falling laundry, and moving the laundry.

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.

At least one of the plurality of main injection streams a1, a2, a3, a4 and a5 is injected toward the upper region of the drum 122, and at least one of the plurality of main injection streams is injected into the drum The upper area of the drum 122 is an area higher than half of the height of the drum in the inner space of the drum and the lower area of the drum is the area of less than half of the height of the drum .

The number of the main injection streams injected toward the upper region of the drum 122 in this embodiment is larger than the number of the main injection streams injected toward the lower region so that a more intense injection into the upper region of the drum 122 .

13, three (a1, a2, a3) out of a plurality of main injection streams a1, a2, a3, a4 and a5 are injected into the first and second quadrants I and II, (a4, a5) are injected into the third and fourth quadrants (III, IV). At this time, the first quadrant (I) and the second quadrant (II) are located diagonally to each other, and the third quadrant (III) and the fourth quadrant are located diagonally to each other.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

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 the shape of the washing water sprayed by the spray nozzle.

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

FIG. 8 shows another embodiment of the spray nozzle applied to the laundry treatment apparatus of the present invention.

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

FIG. 10 is an enlarged cross-sectional view of the portion E cut along the line D-D in FIG.

11 and 12 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.

13 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.

Claims (16)

cabinet; A tub disposed in the cabinet; A drum accommodated in the laundry and rotatably installed in the tub; And And an injection nozzle for spraying washing water toward the inside of the drum, The spray nozzle A plurality of guide portions forming a bend in an inner side surface; And And a first surface for guiding the wash water to be sprayed to the inside of the drum, The guide portion And a rib projecting from the first surface and extending along the flow direction of the washing water, The ribs Wherein a thickness of the washing water guided along the first surface is changed so that the main spray flow between the adjacent ribs can be connected by the water film. The method according to claim 1, And a gasket provided between the cabinet and the tub, Wherein the spray nozzle is provided in the gasket. delete The method according to claim 1, The ribs Wherein a gap between adjacent ribs and a height of the ribs are equal to each other. cabinet; A tub disposed in the cabinet; A drum accommodated in the laundry and rotatably installed in the tub; And And an injection nozzle for spraying washing water toward the inside of the drum, The spray nozzle A plurality of guide portions forming a bend in an inner side surface; And And a first surface for guiding the wash water to be sprayed to the inside of the drum, The guide portion And a groove extending from the first surface along the flow direction of the wash water, In the groove, Wherein a depth and a width are formed such that the thickness of the washing water guided along the first surface is changed and the boundary between the main spray flow and the water film smoothly extends. 6. The method of claim 5, Wherein the depth of the groove is formed within 1/5 of the width of the groove. 6. The method of claim 5, In the groove, Wherein the cross section is formed to be circular arc. 6. The method of claim 5, And a gasket provided between the cabinet and the tub, Wherein the spray nozzle is provided in the gasket. 6. The method according to claim 1 or 5, And a pump for pumping washing water to the spray nozzle. 10. The method of claim 9, The pump includes: And the washing water in the tub is pumped. 9. The method according to claim 2 or 8, The spray nozzle Wherein the gasket is integrally formed with the gasket. cabinet; A tub disposed in the cabinet; A drum accommodated in the laundry and rotatably installed in the tub; And And a spray nozzle for spraying wash water in a form including a water film formed between a plurality of main spray streams and a main spray stream toward the inside of the drum. 13. The method of claim 12, The spray nozzle Wherein at least one of the plurality of main injection streams is injected toward an upper region of the drum, and at least one of the plurality of main injection streams is injected toward a lower region of the drum. 14. The method of claim 13, Wherein a main injection flow, which is injected toward the upper region of the drum, On a predetermined projection plane orthogonal to the rotation axis of the drum, toward the first quadrant or the second quadrant, The main injection flow, which is injected toward the lower region of the drum, And a third quadrant or a fourth quadrant positioned diagonally to a quadrant for which the main jet flow is directed toward the upper region of the drum. 14. The method of claim 13, Wherein the number of main injection streams injected toward the upper region of the drum is larger than the number of main injection streams injected toward the lower region. 13. The method of claim 12, And a gasket provided between the cabinet and the tub, Wherein the spray nozzle is provided in the gasket.

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