KR101454657B1 - Washing machine having detergent feeding device - Google Patents

Abstract

Disclosed is a washing machine capable of minimizing leakage of water from a sprinkler of a detergent supply device. The washing machine includes a detergent supply device having a water spraying device for spraying water into a detergent container therein so as to supply detergent together with water supply. The water spraying device includes a lower cover having a plurality of water injection holes, a lower cover An upper cover covering the upper portion of the lower cover so as to form a flow path together with the upper cover and the lower cover lower cover; And a fused rib.

Description

[0001] WASHING MACHINE HAVING DETERGENT FEEDING DEVICE [0002]

1 is a sectional view showing the construction of a washing machine according to the present invention.

2 is an exploded perspective view of a washing machine detergent supply device according to the present invention.

3 is a cross-sectional side view of a sprinkler of a washing machine detergent supply device according to the present invention.

4 is a longitudinal sectional view of a washing machine detergent supply device according to the present invention.

Description of the Related Art [0002]

10: main body, 11: water tank,

12: washing tub, 14: door,

15: drive motor, 20: detergent supply device,

21: housing, 22: detergent container,

30: sprinkler device, 31: lower cover,

32: upper cover, 33: water spray hole,

38, 39: fusion rib, 50: silver solution supply device,

51: silver solution chamber, 52, 53: silver plate.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washing machine, and more particularly, to a washing machine having a detergent supply device capable of supplying detergent during a water supply process.

A typical washing machine is provided with a detergent supply device that allows the detergent to be dissolved and supplied by water supplied in the process of supplying wash water to a water tank. For example, a washing machine equipped with such a detergent supply device is disclosed in Korean Patent Laid-Open Publication No. 2006-85978.

The detergent supply device of the washing machine disclosed in the above publication includes a box-shaped housing having a front face opened, a spray device (dispenser cover) for spraying water into the housing in a shower manner, and a detergent And a container. Further, the water spraying apparatus has a lower cover coupled to an upper portion of the housing and having a plurality of spray holes, and an upper cover covering an upper portion of the lower cover. In this sprinkling device, the upper cover and the lower cover are coupled to each other in a heat fusion manner to form a flow path for water supply. Therefore, the water supplied from the water supply pipe can be supplied to the lower detergent container through the plurality of spray holes after flowing into the flow path inside the spraying device.

However, in such a washing machine detergent supply device, when the upper cover and the lower cover constituting the sprinkling device are coupled through thermal fusion, fusion may be unstable. In this case, water is supplied through the portion where the upper cover and the lower cover are coupled It could be leaked. In the conventional water spraying apparatus, since the welding ribs on the edge for joining the upper cover and the lower cover are one ply, water is liable to leak when a fusion failure occurs.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a washing machine capable of minimizing the leakage of water from a sprinkler of a detergent supply device.

In order to accomplish the above object, the washing machine according to the present invention includes a detergent supply device having a water spraying device for spraying water into a detergent container in order to supply detergent together with water supply. The water spraying device includes a plurality of water spray holes An upper cover covering the upper portion of the lower cover so as to form a flow path together with the lower cover, and an upper cover covering at least one side of at least one of the upper cover and the lower cover for fusing engagement between the upper cover and the lower cover. And a fused rib provided in the form of a double layer.

The sprinkling device may further include a plurality of space dividing ribs dividing a space between the upper cover and the lower cover into a plurality of spaces and a plurality of flow dividing ribs forming a flow path for allowing water to flow into the plurality of spaces, .

Further, the fusion rib, the space partition rib, and the flow path partition rib project upward from the upper surface of the lower cover.

The detergent supply device may include a silver solution supply device provided integrally with the spray device in a water supply path of the spray device to make a silver solution, and the silver solution supply device may be provided in a space form partitioned at one side of the spray device A silver solution chamber through which water to be supplied is passed, and a pair of silver plates which are installed in the application liquid chamber so as to be able to flood and generate silver ions through electrolysis.

The silver solution chamber is formed by the combination of the upper cover and the lower cover, and the fusion rib of the double layer is formed around the silver solution chamber.

And the silver solution chamber is surrounded by the fusion rib of the double layer.

Further, the silver solution chamber is located behind the water spraying apparatus and has a width in the left-right direction larger than a width in the front-rear direction.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1, a washing machine according to the present invention includes a drum-shaped water tank 11 installed inside a main body 10 and a drum-type washing tub 12 rotatably installed inside the water tub 11, It is a drum type washing machine equipped. The washing tub 12 has a plurality of dewatering holes 12a formed on the wall surface for circulating washing water. The washing tub 12 is provided with a plurality of lifts 12b provided on the inner surface thereof for raising and dropping laundry when rotating.

The washing tub 12 is provided with a laundry inlet 13 at the front of the main body 10 so that the user can take laundry out of the front of the main body 10, A door 14 for opening and closing the door 13 is provided. A driving motor 15 for rotating the washing tub 12 in the forward direction or the reverse direction is provided on the rear surface of the water tub 11.

A water supply device 16 for supplying wash water to the inside of the water tub 11 and a detergent supply device 20 for supplying detergent in the water supply process are installed on the upper part of the water tub 11. A drainage device 17 for draining the wash water of the water tub 11 is installed in the lower part of the water tub 11. The drainage device 17 includes drainage pipes 17a and 17b for guiding the drainage and a drainage pump 17c connected to the drainage pipes 17a and 17b.

The water supply device 16 includes a plurality of water supply valves 16a and 16b for controlling the water supply, a plurality of water supply pipes 16c for connecting the water supply valves 16a and 16b and the detergent supply device 20, And a connection pipe 16d for guiding the water passed through the water tub 20 to the inside of the water tub 11.

2, the detergent supply device 20 includes a box-shaped housing 21 whose front surface is opened, a drawer (not shown) mounted to enter the inside of the housing 21 through an opened front surface of the housing 21, Type detergent container 22 and a water spray device 30 for spraying water onto the detergent container 22 inside the lower nozzle 21. [

2 and 4, the housing 11 of the detergent supply device 20 has a space for accommodating the detergent container 22 therein, and the outlet 23 at the lower rear side is connected to the connection pipe 16d ). And the water spraying device 30 is coupled to the housing 21 in such a manner as to cover the upper portion of the housing 21. [

As shown in Fig. 2, the detergent container 22 is open at the top and rear, and its interior is partitioned into a plurality of spaces 25a, 25b and 25c by the partition portions 24a and 24b. So that the detergent is classified into the respective spaces 25a, 25b and 25c and put into each space. 2, a space 25a for introducing detergent for the washing process, a space 25b for introducing the fiber-spinning agent for the rinsing process, and a space 25c for introducing the functional detergent to the user as needed.

The water spraying apparatus 30 includes a lower cover 31 and an upper cover 32. A plurality of water spray holes 33 are formed in the lower cover 31 so as to spray water into each space of the detergent container 22. The upper cover 32 is coupled to the upper portion of the lower cover 31 to form a water supply channel together with the lower cover 31. 3, the inside of the sprinkler 30 is divided into a first space 35a, a second space 35b, and a second space 35b from the left side of FIG. 3 by a plurality of space dividing ribs 34a, 34b, 3 space 35c. The water spraying device 30 further includes a plurality of flow path dividing ribs 37a, 37b, 36c, 36d for forming flow paths 36a, 36b, 36c, 36d for selectively supplying water to the respective spaces 35a, 35b, 37b, 37c, and 37d are provided. Second, and third water supply ports 41, 42, and 43 for selectively supplying water to the respective flow paths 36a, 36b, 36c, and 36d are provided at the rear of the water spraying apparatus 30. [ A fusing rib 38 for fusing and coupling the upper cover 32 and the lower cover 31 is provided at the periphery of the lower cover 32 while defining an inner space of the sprinkler 30. [ The fusion ribs 38, the space dividing ribs 34a, 34b and 34c and the flow path dividing ribs 37a, 37b, 37c and 37d protrude upward from the upper surface of the lower cover 31 and are welded to the lower surface of the upper cover 32 .

The water spraying device 30 allows the water supplied from at least one of the water supply ports 41, 42 and 43 to be selectively introduced into the first to third spaces 35a, 35b and 35c therein, 25b, and 25c of the first and second passages 22 and 22, respectively. When the water supply is performed, water is selectively supplied to the water supply ports 41, 42, and 43.

At the rear of the water spraying device 30, a silver solution supply device 50 integrated with the spray device 30 is provided. And the water to be supplied is made into a silver solution so that it can be supplied to the water tank 11. The silver solution supply device 50 includes a silver solution chamber 51 formed as a partition space by fusion bonding of the upper cover 32 and the lower cover 31, And includes a pair of silver plates 52, 53 spaced apart from each other. The pair of silver plates 52 and 53 are installed so as to enter the silver solution chamber 51 in a state of being coupled to the lid part 54 provided on the upper cover 32 side. The upper portion of the solution chamber 51 is sealed by the engagement of the lid portion 54. [ As shown in Figs. 2 and 3, the silver solution chamber 51 is surrounded by a diamond-like fused rib 39 to be separated into a separate space.

The first solution supply port 41 is provided at one side of the silver solution chamber 51 so that water can flow into the silver solution solution chamber 51 and the discharge port 55, . The discharge port 55 is directed to the flow path 36b associated with the first space 35a so that water can be supplied to the first space 35a of the spray device 30. [ This is because the water introduced through the first water supply port 41 can be a silver solution in the process of passing through the silver solution chamber 51. That is, a current of a predetermined voltage is applied to the pair of silver plates 52 and 53 to electrolyze the silver ions from the silver plates 52 and 53, thereby mixing silver ions with the water to be supplied. The silver solution produced in this manner is put into the water tank 11 and sterilizes the laundry.

On the other hand, the fusion ribs 38 provided along the periphery of the sprinkling device 30 are composed of a double layer as shown in Fig. The fusion ribs 39 surrounding the silver solution chamber 51 are also composed of a double layer. This is because the upper cover 32 and the lower cover 31 are coupled to each other by the fusion ribs 38 and 39 of a double layer so that the coupling around the sprinkler 30 is made as strong as possible, Thereby preventing water from leaking to the periphery of the device 30. [ In the example shown in Fig. 3, two fused ribs 38 and 39 are provided around the water spraying device 30 and the silver solution chamber 51, but the present invention is not limited to this and the fused ribs may be three or more layers.

The silver solution chamber 51 is formed to be long in the lateral direction (right and left width direction of the sprinkling device) as shown in Fig. 3 so that the width of the solution chamber 51 is larger than the front-rear direction width. That is, in the left-right direction in Fig. This minimizes the protrusion of the silver solution supply device 50 to the rear side of the sprinkling device 30 so that the lengths of the upper and lower covers 32, 31 in the forward and backward directions can be made as short as possible. If the length of the upper cover 32 and the lower cover 32 is shortened, the unevenness of the fused surface can be reduced, thereby facilitating fusing and reducing fusion defects.

As described above in detail, the detergent supply device of the washing machine according to the present invention is characterized in that since the welding ribs provided on the peripheral side of the water spraying device are formed in a double layer in order to couple the lower cover and the upper cover of the water spraying device, So that the phenomenon of leakage of water from the spraying apparatus can be minimized.

Further, the present invention is also effective in minimizing the leakage of wash water to the silver solution chamber since a fusion rib of a double layer is provided around the silver solution chamber provided at one side of the sprinkling device.

In addition, since the silver solution chamber is formed long in the lateral direction of the spray apparatus, the length of the upper cover and the lower cover of the spray apparatus can be minimized. Accordingly, the imbalance between the upper cover and the lower cover fused surface can be minimized, so that the fusion can be facilitated and the defective fusion can be reduced.

Claims (7)

A washing machine comprising a detergent supply device having a water spray device for spraying water into a detergent container therein to supply a detergent together with water, The water spraying apparatus includes a lower cover having a plurality of water injection holes formed therein, an upper cover covering the upper portion of the lower cover to form a flow path together with the lower cover, A plurality of space dividing ribs dividing a space between the upper cover and the lower cover into a plurality of spaces and a plurality of space dividing ribs through which water can flow into the plurality of spaces, And a plurality of flow path dividing ribs which form a flow path so as to form a flow path. delete The method according to claim 1, Wherein the fusion rib, the space partition rib, and the flow passage partition rib project upward from the upper surface of the lower cover. The method according to claim 1, The detergent supply device includes a silver solution supply device provided integrally with the water spraying device in a water supply path of the water spray device to make a silver solution, Wherein the silver solution supply device comprises a silver solution chamber provided in the form of a space partitioned at one side of the sprinkling device and through which water to be supplied is passed and a pair of silver solution chamber which is immersed in the silver solution chamber, Wherein the washing machine comprises a silver plate. 5. The method of claim 4, The silver solution chamber is formed by the engagement of the upper cover and the lower cover, And a fusion rib of the double layer is formed around the silver solution chamber. 6. The method of claim 5, Wherein the silver solution chamber is surrounded by a fusion rib of a double layer. The method according to claim 6, Wherein the silver solution chamber is located at the rear of the sprinkler and has a width in the left-right direction larger than a width in the front-rear direction.

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