KR20110040180A - Washing machine - Google Patents

Abstract

PURPOSE: A laundry processor for injecting washing water according to a gasket is provided to prevent foreign material from being in the gasket and to inject washing water according to a gasket. CONSTITUTION: Washing water is accepted to a tub. A laundry is accepted to the drum. A gasket(140) is installed between the drum and the tub. An injection nozzle(170) injects washing water to the inner side of the drum. A connector(164) is installed in the gasket. The connector guides the washing water to the injection nozzle. An injection hole(165) is formed in the connector in order to inject parts of guided washing water along the gasket.

Description

Laundry processing machine {Washing machine}

The present invention relates to a laundry treatment machine.

In general, a laundry treatment apparatus refers to an apparatus for washing or drying laundry. On the other hand, in the laundry treatment machine to process the laundry, the laundry is circulated and sprayed from the outside. At this time, the wash water is circulated through the circulation pump and sprayed. The circulation pump generally has a limited capacity. Therefore, there is a limit to spraying washing water with a lot of laundry or increase the water pressure within a short time. In addition, the water pressure is generally limited according to the capacity of the circulation pump. On the other hand, when the circulation pump operates to spray the wash water to the laundry, when the water pressure is low, there is a problem that the washing water is not uniformly sprayed on the laundry. In particular, the rinsing time of the laundry is affected by the injection of the washing water in relation to the rinsing cycle of the laundry. In addition, when the washing water is not sprayed uniformly, the rinsing performance of the laundry may be reduced.

An object of the present invention is to provide a laundry treatment apparatus that wets laundry efficiently.

The laundry treatment machine of the present invention includes a cabinet, a tub provided in the cabinet, a drum rotatably provided in the tub to accommodate laundry, a gasket provided between the cabinet and the tub, and a lower portion of the gasket. It is provided with, a plurality of injection nozzles for spraying the washing water upwards toward the inside of the drum, and a pump for pumping the washing water to the plurality of injection nozzles.

In addition, the laundry treatment apparatus of the present invention, a cabinet, a tub provided in the cabinet, a drum in which the laundry is received and rotatably provided in the tub, a gasket provided between the cabinet and the tub, a plurality of It includes a plurality of injection nozzles provided in the gasket so that the washing water is sprayed toward the inside of the drum in the direction.

According to the laundry treatment machine of the present invention has one or more of the following effects.

First, by spraying the washing water along the gasket, it is possible to prevent the deposit of foreign matter on the gasket.

Second, the gasket can be effectively washed by the strong water flow spraying the washing water toward the bottom of the gasket.

Third, the washing water may be sprayed in a plurality of directions toward the inside of the drum.

Fourth, it is possible to spray the washing water from the downward to the inner side of the drum.

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

Sixth, the washing and rinsing performance can be improved by spraying the wash water to the laundry to cause the flexing.

Seventh, the injection nozzle is provided in the lower portion of the gasket increases the flow rate of the washing water is injected close to the pump.

Eighth, there is no laundry that is not in contact with the wash water during washing or rinsing can be washed performance.

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

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings for describing a clothes treating apparatus according to embodiments of the present invention.

1 is a perspective view showing a laundry treatment machine according to an embodiment of the present invention. 2 is a side cross-sectional view of the laundry treatment machine shown in FIG. 1 taken along line A-A. Figure 3 illustrates a structure in which the washing water is sprayed in the laundry treatment machine according to an embodiment of the present invention. 4 is a cross-sectional view taken along the line B-B shown in FIG. 3.

1 to 4, a laundry treatment apparatus 100 according to an embodiment of the present invention includes a cabinet 110, a tub 121 disposed inside the cabinet and storing wash water supplied from the outside; A drum 122 disposed inside the tub, into which laundry is inserted, a driving unit 130 for supplying rotational force to the drum, a water supply valve 125 for supplying washing water supplied from an external water source, and washing water in the tub. It includes a drain hose 151 and a pump 160 to drain.

The cabinet 110 forms an exterior of the laundry treatment apparatus 100, and has a cabinet body 111 having a front surface and an upper surface opened, and a laundry access hole 119 formed to allow the laundry to enter and exit the front of the cabinet body. And a front cover 112 coupled to the front cover 112, a control panel 115 provided at an upper side of the front cover 112 to provide a user interface, and a top cover 116 provided at an 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 includes a display unit 117 for displaying various state information of the laundry processing apparatus 100, and an input unit 118 for inputting various control commands such as a washing course, an operation time and a reservation for each stroke, from a user. It is provided.

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

Detergent box 133 is a detergent such as laundry detergent, fabric softener or bleach is accommodated. Detergent box 133 is preferably provided to be pulled out on the front of the front cover (112). Detergent in the detergent box 133 is mixed with the wash water at the time of supplying the wash water flows into the tub 121.

The tub 121 is suspended from the top cover 116 by the spring 124 so as to damp vibration generated when the drum 122 rotates, and is supported by the damper 126. The drum 122 is rotated by the driving unit 130, and a lifter 135 for pumping laundry upon rotation is provided inside.

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 circumference of the opened front surface of the tub 121. Thus, the wash water stored in the tub 121 is prevented from leaking between the tub and the cabinet 110. In addition, the gasket 140 is formed to have a wrinkle along the circumference to buffer the vibration of the tub 121.

Referring to FIG. 4, the gasket 140 is bent so that a tub connection part 141 fastened to the tub 121, a cabinet connection part 144 fastened to the cabinet 110, and a corrugation between the tub connection part and the cabinet connection part are pleated. And a pleating portion 143 for cushioning vibration and a groove portion 142 formed along the inner circumference of the gasket by the pleating portion.

The connector 162 is provided in the gasket 140 to guide the washing water to the first injection nozzle 170, and the injection hole 165 is formed so that some of the guided washing water is sprayed along the inner circumference of the gasket.

The connector 164 is fastened to the gasket such that the injection hole 165 faces the lower portion of the gasket 140. In this case, the connector 164 may be provided on both the left and right sides of the gasket 140 so as to be symmetrical with respect to the vertical symmetry line of the gasket 140, and the first injection nozzles 170 may be provided at both connectors. ) And the second injection nozzle 180 is connected. Accordingly, the washing water is sprayed from both connectors 164 toward the lower portion of the gasket 140 so that the gasket is effectively washed. In this case, a drainage hole (not shown) may be formed between both connectors 164 to allow the wash water to be drained.

The injection hole 165 may be formed of a slit formed by cutting along the circumferential direction of the connector 164. Since the injection hole 165 is cut along the circumferential direction, the washing water may be sprayed to have a sufficient width to effectively wash the groove 162, and may be formed in the shape of an elongated slit to increase the spraying strength of the washing water.

The injection hole 165 is preferably formed to be located inside the groove so that the washing water flows without overflowing the groove 162.

The connector 162 is fastened through the groove 142, and a part of the washing water flowing to the injection nozzles 170 and 180 through the connector is injected through the injection hole 165, and flows downward along the groove 142. Wash any residual detergent or contaminants removed from the laundry. Therefore, it is preferable that a drainage hole (not shown) is formed at the lower portion of the gasket 140 so that the washing water washed down along the groove 142 can be drained.

The gasket 140 may be integrally formed of one material, but the tub fastening portion 141 is formed of a hard material to secure the fastening strength and sufficient rigidity with the tub 140, and the cabinet (from the tub 121) may be formed. Cabinet fastening portion 144 may be formed of a material having elasticity to mitigate the vibration transmitted to 110.

The gasket 140 protrudes from the inner circumference to form a protrusion 145. The laundry moving by the rotation of the drum 122 hits the protrusion 145 and then bounces back into the drum, thereby preventing the laundry from being separated from the drum.

On the other hand, the gasket 140 is provided with a first injection nozzle 170 and a second injection nozzle 180 to circulate the washing water discharged from the tub 121 to be injected into the drum 122. In the present exemplary embodiment, washing water is sprayed by two spray nozzles 170 and 180, but the scope of the present invention is not limited thereto, and the washing water is sprayed into the drum 122 in a plurality of directions. It is specified that the above injection nozzles can be provided.

After the wash water in the tub 121 is pumped by the pump 160, the washing water is circulated by being sprayed into the drum 122 by the first spray nozzle 170 and the second spray nozzle 180. In this embodiment, the drainage and circulation of the washing water is implemented by one pump 160, but not limited to this, it is also possible that the pump for drainage and the pump for circulation are provided separately.

The wash water pumped by the pump 160 is distributed by the distributor 161 and the first injection nozzle 170 and the second injection nozzle (respectively) through the first injection passage 162 and the second injection passage 163 ( 180). In this case, the pump 160 may pump the washing water so that the washing water may be sprayed by the first injection nozzle 170 and the second injection nozzle 180 at the same time. Therefore, the spray is made simultaneously in both directions toward the laundry to effectively process the laundry, there is an effect that can process the laundry with a constant performance irrespective of the rotation direction of the drum (122).

Heavy and weighted waiters 155 and 156 are provided above and / or below the tub 121 to maintain the stability of the tub even when the drum vibrates due to inertia caused by the weight of the waiter. The waiters 155 and 156 may include an upper waiter 155 provided above the tub and a lower waiter 156 provided below.

Injection nozzles 170 and 180 may be connected to the gasket 140 by the connector 164, respectively. 4 illustrates a connector 164 connecting the first injection nozzle 170 to the gasket 140, but the second injection nozzle 180 may also be connected to the gasket in the same structure. The connector 164 is provided to pass through the gasket 140 to connect the first injection passage 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 therebetween. The reason why the arrangement is as described above is to prevent each connector 164 connected to the first injection nozzle 170 and the second injection nozzle 180 from interfering with the lower waiter 156. Unlike the example, when the connector 164 is not provided in the gasket 140, the arrangement structure of the first injection nozzle 170 and the second injection nozzle 180 is not limited thereto.

On the other hand, the first injection nozzle 170 and the second injection nozzle 180, the vertical symmetry such that the washing water is evenly sprayed into the drum 121 to be symmetrical with each other with respect to the vertical symmetry line passing through the center of the gasket 140 The left and right sides of the line may be provided respectively.

Due to the structure as described above, the first injection nozzle 170 is provided in 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, and the second The injection nozzle 180 is provided at the lower right side of the gasket 140 to inject the washing water into an area from the upper right side of the drum to the lower left side.

5A and 5B illustrate an embodiment of the spray nozzle applied to the laundry treatment machine of the present invention. Referring to FIGS. 5A and 5B, the spray nozzle 170 may include an inlet 171 through which washing water is introduced, a first surface 172 formed such that the washing direction of the washing water is directed toward the inside of the drum 122. And second and third surfaces 173 and 174 extending from both sides of the first surface to define the spray width of the wash water.

The first surface pumped by the pump 160 and introduced through the inlet 171 is formed to face the outlet end 171h side of the inlet and extends inclined toward the inside of the drum 122. 172 is guided and sprayed. At this time, since the washing water is guided along the first surface 172 by the pumping pressure of the pump 160, the sprayed washing water is sprayed while being unfolded so that the portion contacting the drum is approximately linear. Thus, even if the same amount of washing water is sprayed, it is possible to spray a large area, as in the embodiment of the present invention, respectively, the first spray nozzle 170 and the second spray nozzle 180 on both sides of the gasket 140 When provided, effective spraying into a wider area is possible.

On the other hand, the first surface 172 is formed so as to gradually widen toward the exit end (spanning), the second surface 173 and the third surface 174 respectively extend from both sides of the first surface. Accordingly, the second surface 173 and the third surface 174 define the spray width of the sprayed washing water, the second surface forms the lower boundary of the sprayed washing water, and the third surface is the sprayed washing The upper boundary of the number is formed. At this time, the second surface 173 and the third surface 174, the spray zone between the upper boundary (st2) and the lower boundary (st3) of the sprayed washing water as shown by the point P in FIG. It is formed to intersect the rotation axis of 122).

Meanwhile, a plurality of ribs 175 may be formed on the first surface 172 along the flow direction of the wash water. The wash water guided along the first surface 172 is changed in thickness by the plurality of ribs 175. Therefore, the water streams injected between the adjacent ribs 175 form a thick main jet stream, and a thin water film is formed between the main jet streams.

As the washing water is sprayed in the above-described form, it is possible to treat the contaminants accumulated in the laundry by the main jetting flow with a strong impact, the washing of the laundry is made to improve the washing power, the spray area is still by the water film Sufficiently secured.

Figure 6 shows another embodiment of the spray nozzle applied to the laundry treatment machine of the present invention. 7 is an enlarged partial view of a portion C in FIG. 6. FIG. 8 is an enlarged cross-sectional view of part E cut along line D-D in FIG. 7. FIG. 9 is a cross-sectional view taken along the line II of FIG. 6.

 6 to 9, in the present embodiment, the injection nozzles 270 and 280 are different from the above-described embodiment in that they are integrally formed with the gasket 240. The injection nozzles 270 and 280 are formed with a first injection hole 276a so that some of the washing water is sprayed toward the drum 122, and another part of the washing water is sprayed along the gasket 240. The second injection hole 276b is formed. The spray nozzles 270 and 280 are formed to protrude from the lower portion of the gasket 240 to spray the washing water upwards toward the drum 122. In this case, the injection nozzles 270 and 280 may be formed in the groove portion 242. In this case, the first injection hole 276a may be formed outside the groove portion so that the washing water sprayed is not interfered by the gasket 140. It is preferable to be. On the other hand, the second injection hole 276b is preferably formed to be located inside the groove 242 so that washing water can be injected along the groove 242.

Meanwhile, the gasket 240 is branched from the first gasket flow path 271a and the first gasket flow path 271a through which the washing water pumped by the pump 160 and introduced through the injection flow paths 162 and 163 is guided. A second gasket flow path 271b may be formed to guide the wash water to the second injection hole 276b. The first gasket flow path 276a and the injection flow paths 162 and 156 may be connected by the connector 164.

As in the above-described embodiment, in the present embodiment, the first injection nozzle 270 and the second injection are respectively disposed on the left and right sides of the gasket 240 based on the vertical symmetry lines so as to be symmetrical with respect to the vertical symmetry lines of the gasket 240. The nozzle 280 may be provided, and a drainage hole (not shown) may be formed between the two spray nozzles so that the washing water can be drained. The drain hole is preferably provided at the lower portion of the gasket 240.

On the other hand, in the present embodiment, a groove 275 is formed on the first surface 275 of the injection nozzle 270, unlike in the above-described embodiment. However, the present embodiment and the above-described embodiment are not distinguished by such structural differences, and a rib 175 is formed in the injection nozzle 270 of the present embodiment, or a groove (in the injection nozzle 170 of the above-described embodiment) is provided. It is also possible to form 275). That is, the structure of the ribs 175 or grooves 275 is independent of whether the spray nozzle is formed integrally with the gasket and specifies that any structure can be applied to each embodiment.

On the other hand, the first injection nozzle 270 is formed in a shape protruding from the inner circumference of the gasket 140. Due to this shape of the first jet nozzle 270, the laundry moving by the rotation of the drum 122 hits the first jet nozzle 270 and then bounces back into the drum, thereby preventing the laundry from being separated from the drum. When the door 113 is opened after the washing is completed, the laundry is prevented from pouring out.

10 and 11 are conceptual views illustrating the shape of the washing water sprayed into the drum by the spray nozzle of the laundry treatment machine according to an embodiment of the present invention. 12 is a cross-sectional view of the washing water sprayed to explain the spraying area a of the washing water sprayed by the first spray nozzle and the spraying area b of the washing water sprayed by the second spray nozzle. will be.

The first injection nozzle 170 and the second injection nozzle 180 are provided at both sides of the lower portion of the gasket in a range not exceeding half the height of the gasket 140. The first spray nozzle 170 sprays the washing water upward from the lower left side of the gasket 140 toward the inside of the drum 122, and the second spray nozzle 180 moves the inside of the drum at the lower right of the gasket. Spray the wash water upwards. Therefore, as the drum 122 rotates, the laundry 10 which is lifted and dropped by the lifter 135 passes through the spraying area formed by the first spray nozzle 170 and the second spray nozzle 180. As the process is performed. That is, the spray nozzle according to the present invention sprays the washing water upwards toward the falling laundry, so that the sprayed washing water can wet the laundry with a strong impact force, and the laundry can be rolled out by the strong impact force so that the laundry treatment performance is improved. Is improved. Therefore, for this effect, it is necessary to find a washing motion in which the laundry is lifted and then dropped again along the inner side of the drum, which will be described below in more detail with reference to FIG. 12.

On the other hand, the washing water sprayed by the spray nozzle 170 is the upper side which is the angle between the central jet stream (st1) that meets the rotation axis of the drum 122 and the upper boundary jet stream (st2) forming an upper boundary of the jetted wash water Injection is performed such that the injection angle θ1 is greater than the lower injection angle θ2, which is an angle between the central jet stream st1 and the lower boundary jet stream st3 forming the lower boundary of the jetted washing water. Therefore, the injection may be more concentrated to the inner upper region of the drum 122.

Due to the positional characteristics of the first injection nozzle 170 and the second injection nozzle 180 as described above, the washing water sprayed by the first injection nozzle is an area from the lower right side of the drum 122 to the upper left area. The washing water sprayed in a diagonal line and sprayed by the second spray nozzle is sprayed in a diagonal line l from the lower left side to the upper right side of the drum. Looking at this on the predetermined projection surface T orthogonal to the axis of rotation of the drum 122, the injection surface S and the projection surface T meet and form a line l.

Again, referring to FIG. 11, the shape of the sprayed washing water is projected on the projection surface T. The washing water sprayed by the first injection nozzle 170 is divided from the second quadrant II to the fourth quadrant IV on the projection surface. ), And the washing water sprayed by the second injection nozzle 180 forms an oblique line from the first quadrant I to the third quadrant on the projection surface T. As a result, the wash water sprayed by the first spray nozzle 170 and the second spray nozzle 180 sprays the wash water toward all of the first, second, third and fourth quadrants. Looking at this again from the perspective of the drum 122, it means that the washing water can be evenly sprayed into the drum 122 by the first injection nozzle 170 and the second injection nozzle 180.

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

1 is a perspective view showing a laundry treatment machine according to an embodiment of the present invention.

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

Figure 3 illustrates a structure in which the washing water is sprayed in the laundry treatment machine according to an embodiment of the present invention.

4 is a cross-sectional view taken along the line B-B shown in FIG. 3.

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

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

7 is an enlarged partial view of a portion C in FIG. 6.

FIG. 8 is an enlarged cross-sectional view of part E cut along line D-D in FIG. 7.

FIG. 9 is a cross-sectional view taken along the line II of FIG. 6.

10 and 11 are conceptual views illustrating the shape of the washing water sprayed into the drum by the spray nozzle of the laundry treatment machine according to an embodiment of the present invention.

12 is a cross-sectional view of the washing water sprayed to explain the spraying area a of the washing water sprayed by the first spray nozzle and the spraying area b of the washing water sprayed by the second spray nozzle. will be.

Claims (20)

A tub for washing water; A drum in which laundry is received and rotatably provided in the tub; A gasket provided between the drum and the tub; A spray nozzle for spraying washing water toward the inside of the drum; And And a connector provided in the gasket to guide the washing water to the spray nozzle and having a spray hole formed so that some of the guided washing water is sprayed along the inner circumference of the gasket. The method of claim 1, The gasket includes a groove formed along the inner circumference, The spray hole, the laundry treatment device formed to spray the washing water toward the groove. The method of claim 2, The connector, It is provided in the groove portion, The spray hole laundry processing machine is located inside the groove. The method of claim 2, The gasket, Laundry treatment device including a drain hole formed in the groove. The method of claim 1, The injection hole is a laundry treatment device is a slit formed by cutting along the circumference of the connector. The method of claim 1, And the spray nozzle and the connector are integrally formed. The method of claim 1, The spray hole laundry machine is formed to face the lower portion of the gasket. The method of claim 7, wherein The connector, A first connector and a second connector provided symmetrically on the gasket, The injection nozzle, Laundry treatment device comprising a first injection nozzle and a second injection nozzle connected to the first connector and the second connector, respectively. The method of claim 8, The gasket, Laundry treatment device including a drain hole formed between the first connector and the second connector. A tub for washing water; A drum in which laundry is received and rotatably provided in the tub; A gasket provided between the drum and the tub; And A first spraying hole is formed to be integrally formed with the gasket to spray washing water, and a portion of the washing water is sprayed toward the drum, and a second portion of the washing water is sprayed toward the gasket. Laundry processing apparatus comprising a spray nozzle having a spray hole formed. 11. The method of claim 10, The injection nozzle, The laundry processing apparatus is formed to protrude from the inner circumference of the gasket, the first injection hole is opened to face the inside of the drum, and the second injection hole is opened to face the inner circumference of the gasket. 11. The method of claim 10, The gasket includes a groove formed along the inner circumference, The spray nozzle is a laundry treatment device formed in the groove portion. 11. The method of claim 10, The injection nozzle, Laundry treatment device formed on the lower portion of the gasket. The method of claim 13, The injection nozzle, Washing machine comprising a first injection nozzle and a second injection nozzle formed symmetrically to each other in the gasket. The method of claim 14, The gasket, Washing machine further comprises a drainage hole formed between the first injection nozzle and the second injection nozzle. 11. The method of claim 10, The gasket, A first gasket flow path configured to guide wash water to the first injection hole; And And a second gasket flow path branched from the second gasket flow path to guide the wash water to the second injection hole. A tub for washing water; A drum in which laundry is received and rotatably provided in the tub; And A gasket provided between the drum and the tub to allow washing water to flow therein; The gasket, Laundry treatment device comprising a spray hole for guiding the introduced washing water in the inner circumferential direction of the gasket. The method of claim 17, The injection hole, Laundry treatment device including a first injection hole and the second injection hole formed to face each other in the lower portion of the gasket. The method of claim 18, The gasket, The laundry treatment machine further comprises a drainage hole formed between the first injection hole and the second injection hole. The method of claim 17, And a pump for pumping the washing water in the tub to the gasket.

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