KR20100037461A - Dish washer - Google Patents

Abstract

PURPOSE: A dish washer is provided to reduce impact noise due to the washing water bumping against dishes by splitting the stream of washing water through a nozzle net. CONSTITUTION: A dish washer comprises a sump, a washing pump, and a spray nozzle. The sump is arranged under a washing tub so that washing water is collected in the sump. The washing pump pumps up the washing water from the sump. The spray nozzle sprays the pumped washing water into the washing tub. The spray nozzle includes a plurality of jet holes(52) through which washing water is discharged and a nozzle mesh(54) which is arranged on the jet holes to divide the stream of washing water.

Description

Dishwasher {Dish washer}

The present invention relates to a dishwasher, and more particularly, by providing a nozzle network in the injection hole of the jet nozzle, the impact noise caused by the washing water hit the dishes is reduced, and the washing force can be improved.

In general, a dishwasher is a device that cleans contaminants such as food waste on dishware or cooking utensils (hereinafter, referred to as 'dishware') using detergent and washing water.

The dishwasher includes a main body including a washing tank, a door for opening and closing the opening of the main body, a rack assembly disposed inside the washing tank for storing dishes, and a sump disposed under the washing tank for storing the washing water. And a washing pump for pumping the washing water stored in the sump, and spray nozzles for spraying the washing water pumped from the washing pump into the washing tank.

The spray nozzles include an upper nozzle disposed above the washing tank, and a lower nozzle disposed below the washing tank. A plurality of injection holes are formed in the upper nozzle and the lower nozzle, respectively. The injection hole is an opening hole of a circular or elliptical shape.

In the washing stroke of the dish washing machine configured as described above, the washing pump is operated to pump the washing water in the sump. Pumped wash water is sprayed into the washing tank through the spray holes of the spray nozzles.

However, the dishwasher according to the related art has a problem in that the water stream of the washing water sprayed is changed according to the size of the injection hole, which limits the size of the injection hole.

In addition, since the water stream of the washing water is thick, there is a problem in that impact noise is generated while hitting the dishes by the injection pressure during the injection of the washing water. In addition, since the washing water bounces after hitting the dishes, the washing power is lowered, and the dirt is scattered.

It is an object of the present invention to provide a dishwasher in which the washing noise generated by the washing water is reduced and the washing power can be further improved.

The dishwasher according to the present invention is disposed under the washing tank, and includes a sump for collecting the washing water, a washing pump for pumping the washing water of the sump, and a spray nozzle for spraying the washing water pumped by the washing pump into the washing tank. The spray nozzle includes a plurality of spray holes for spraying the washing water, and a nozzle network formed to divide the water stream of the washing water sprayed and disposed in the plurality of spray holes.

In the present invention, the nozzle network is composed of a plurality of each corresponding to the plurality of injection holes.

In the present invention, the plurality of nozzle networks may be formed differently in size of each manhole.

In the present invention, the nozzle network is formed in a shape corresponding to the injection nozzle, it is coupled to the injection arm detachably.

In the present invention, the injection nozzle comprises a first injection arm receiving the washing water from the washing pump, and a second injection arm coupled to the first injection arm detachably and the plurality of injection holes are formed, The nozzle network may be detachably coupled to the second spraying rock.

In the present invention, the nozzle network may be made of a polygonal network structure.

The dishwasher according to the present invention is provided with a nozzle network in the injection hole of the spray nozzle, so that the water stream of the sprayed washing water is divided into several parts, so that the impact noise generated when the washing water hits the dish can be reduced. have. In addition, since the washing water does not bounce after hitting the dishes, and flows along the dishes, the washing power may be improved, and the phenomenon in which dirt is scattered again may be reduced.

In addition, the nozzle network is configured to be removable, there is an advantage that the replacement and cleaning of the nozzle network can be made easily.

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

1 is a longitudinal cross-sectional view of the dishwasher according to the first embodiment of the present invention, Figure 2 is a perspective view of the lower nozzle shown in Figure 1, Figure 3 is an enlarged perspective view of the injection hole shown in FIG.

Referring to FIG. 1, the dishwasher according to the first embodiment of the present invention includes a main body 2 having an opening through which washing products such as dishes are introduced, and a door 6 installed to open and close the opening.

The main body 2 includes a washing tank 4 forming a space for washing the dishes, a rack assembly disposed inside the washing tank 4 to accommodate the dishes, and a bottom surface of the washing tank 4. And a sump 40 in which washing water is collected, and nozzles 8, 9 and 10 for spraying the washing water of the sump 40 into the washing tank 4.

The rack assembly is installed to be withdrawn from the washing tank (4). The rack assembly may be provided with a plurality, wherein the upper rack 20 and the lower rack 30 is composed of.

The sump 40 is formed to have an upper surface open, and a sump cover 41 is disposed to cover the opened upper surface.

The sump 40 is connected to the water guide 11 for guiding the washing water to the upper side of the washing tank (4). The nozzles 8, 9, 10 are connected to the water guide 11 to receive washing water from the sump 40.

In addition, the dishwasher further includes a washing pump 42 disposed at one side of the sump 40 to pump the washing water in the sump 40, and a washing motor driving the washing pump 42.

In addition, the dishwasher further includes a drainage device disposed on one side of the sump 40 to discharge the washing water stored in the sump 40 to the outside. The drainage device includes a drain pump 42 for pumping washing water and a drain motor (not shown) for driving the drain pump 42.

Meanwhile, the nozzles 8, 9 and 10 are disposed above the sump 40, and the lower nozzle 8 sprays the washing water to the lower portion of the washing tank 4, and the sump (not shown). The upper nozzle 9 for spraying the washing water supplied from the upper portion of the washing tank 4, and the top nozzle 10 for spraying the washing water downward from the upper side of the washing tank (4).

The upper nozzle 9 and the top nozzle 10 are connected to the water guide 11 to receive the washing water from the sump 40.

The upper nozzle 9 is connected to the water guide 11 by an upper flow path, and the top nozzle 10 is connected to the water guide 11 by the top flow path.

The upper nozzle 9 and the lower nozzle 8 are respectively connected to the supply portion 50, such as the water guide 11 or the sump 40, the washing water is supplied to the center.

Each of the upper nozzle 9 and the lower nozzle 8 has a plurality of protrusions 51 protruding obliquely in a direction in which washing water is sprayed on left and right sides of the connecting portion 50, respectively, and the plurality of protrusions 51. In each of the plurality of injection holes 52 for spraying the washing water is formed.

Hereinafter, the lower nozzle 8 will be described with reference to FIG. 2.

The plurality of protrusions 51 are disposed at predetermined intervals in the left and right directions, that is, in the longitudinal direction of the lower nozzle 8. The plurality of protrusions 51 may protrude inclined in different directions so that the washing water may be sprayed in different directions.

In addition, the plurality of injection holes 52 may be formed to face different directions. The plurality of injection holes 52 may have an elliptical shape.

On the other hand, the plurality of injection holes 52 is provided with a nozzle network 54 formed to divide the water stream of the sprayed washing water. The nozzle network 54 may be arranged to correspond to the plurality of injection holes 52, respectively.

The plurality of nozzle networks 54 may have sizes corresponding to the plurality of protrusions 51, respectively. The nozzle network 51 may be permanently coupled to the outside of the protrusion 51 by welding or the like, or may be insert injection molded when the protrusion 51 is formed.

Depending on the size and shape of the manhole of the nozzle network 54, the injection form of the washing water may vary. Therefore, the size and shape of the manhole of the nozzle network 54 may be determined in consideration of the spray type of the washing water.

The manhole of the nozzle network 54 may be formed in a polygonal shape. Hereinafter, in this embodiment, the manhole of the nozzle network 54 will be described as having a hexagonal shape.

The plurality of nozzle nets 54 may have different size of each manhole. Therefore, the water streams of the washing water sprayed from the plurality of spray holes 52 may be sprayed with different thicknesses.

Looking at the operation of the dishwasher according to the first embodiment of the present invention configured as described above are as follows.

First, when the user stores the dishes in the rack assembly 20, 30, and operates the dishwasher, the washing pump 42 is operated.

When the washing pump 42 is operated, the washing water in the sump 40 is supplied to the washing tank 4 through the lower nozzle 8, the upper nozzle 9, and the top nozzle 10.

At this time, since the lower nozzle 8 and the upper nozzle 9 are each provided with a nozzle network 54, the washing water may be finely sprayed from the lower nozzle 8 and the upper nozzle 9.

That is, while passing through the nozzle network 54, the stream of washing water is divided into several branches. As the water stream of the washing water is divided into several branches, it is mixed with the surrounding air, and thus an air layer may be formed between the water streams of the washing water. Therefore, the impact noise can be reduced by the buffering action by the air layer when the washing water hits the dishes.

In addition, the washing water divided into several streams of water while passing through the nozzle network 54 hits the dishware, and flows along the dishware without being bounced. Therefore, since the dishes can be sufficiently wetted, the washing power can be improved. In addition, when the washing water is splashed after hitting the dish or the like is reduced, the phenomenon that the dirt on the dish is scattered again can be reduced.

In addition, when the washing water is sprayed divided into several streams of water, it may be sprayed in a wider range than when sprayed into a single stream of water. Therefore, it is possible to wet the dishes evenly.

4 is an enlarged perspective view illustrating the injection hole of the dish washing machine according to the second embodiment of the present invention.

Referring to FIG. 4, in the spray nozzle of the dish washing machine according to the second embodiment of the present invention, the nozzle network 62 provided in the plurality of spray holes 60 is coupled to the inside of the spray hole 60. The configuration and operation except that the manhole of the nozzle network 62 has a rectangular shape may be implemented in the same manner as in the first embodiment of the present invention described above, and thus overlaps with the first embodiment of the present invention. The description can be omitted.

That is, the plurality of nozzle networks 62 are disposed to correspond to the plurality of injection holes 60, respectively, and the plurality of nozzle networks 62 may be coupled to the inside of the injection nozzles, respectively. The nozzle network 62 may be joined by welding, or may be insert molded during processing of the spray nozzle.

 Therefore, the nozzle network 62 is coupled to the inside of the injection hole 60, the nozzle network 62 can be more firmly installed.

FIG. 5 is an enlarged perspective view illustrating the jetting arm of the dish washing machine according to the third embodiment of the present invention, and FIG. 6 is a rear view of the second jetting arm shown in FIG. 5.

5 and 6, the spray nozzle 70 of the dish washing machine according to the third embodiment of the present invention includes a first spraying arm 71 receiving washing water from a washing pump and the first spraying arm 71. And a second spray arm 72 coupled to and detachably coupled to the jetting hole 80, and the nozzle network 82 is detachably coupled to the second spray arm 72. Since the configuration and operation of the present invention can be implemented similarly and similarly to the first embodiment of the present invention described above, overlapping description with the first embodiment of the present invention can be omitted.

That is, the injection nozzle 70 is coupled so that the first injection arm 71 and the second injection arm 72 is detachable. The first injection arm 71 and the second injection arm 72 may be hooked by a hook or the like, or may be fastened and fixed by a screw or the like.

Hereinafter, the first spraying arm 71 and the second spraying arm 72 will be described as being coupled to the hook 73 to facilitate attachment and detachment. A hook 73 protruding downward is formed at one side of the second injection arm 72, and the hook 73 is hooked to a hook groove part (not shown) formed at one side of the first injection arm 71. . A plurality of the hooks 73 are formed at positions spaced apart by a predetermined interval in the longitudinal direction of the first injection arm (71).

The nozzle network 82 is one network formed in a shape corresponding to the shape of the second spraying arm 72.

The nozzle network 82 may be detachably coupled to the inside of the second spraying arm 72. The inner side of the second injection arm 72 is formed with a stepped groove portion so that the nozzle network 82 is seated. A locking protrusion 72a is formed in the seating recess so as to be spaced a predetermined distance apart, and the latching protrusion 72a is caught by the locking protrusion 72a after the nozzle network 82 is seated. A plurality of the locking protrusions 72a may be formed.

As described above, since the nozzle network 82 is configured to be detachable, replacement is possible when the nozzle network 82 is damaged. In addition, when the dirt is excessively caught in the nozzle network 82, there is an advantage that can be cleaned, such as separating the nozzle network 82 to wash with water.

1 is a longitudinal sectional view of the dishwasher according to the first embodiment of the present invention.

FIG. 2 is a perspective view of the lower nozzle shown in FIG. 1. FIG.

3 is an enlarged perspective view of the injection hole shown in FIG. 2.

4 is an enlarged perspective view illustrating the injection hole of the dish washing machine according to the second embodiment of the present invention.

FIG. 5 is an enlarged perspective view illustrating the injection arm of the dish washing machine according to the third embodiment of the present invention.

FIG. 6 is a rear view of the second sandstone shown in FIG. 5.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

2: body 4: washing tank

8: lower nozzle 9: upper nozzle

10: top nozzle 52, 60, 80: injection hole

54,62,82: nozzle network

Claims (6)

A sump disposed under the washing tank and collecting the washing water; A washing pump for pumping the washing water of the sump; And a spray nozzle for spraying the washing water pumped by the washing pump into the washing tank. The spray nozzle comprises a plurality of spray holes for spraying the washing water, and a nozzle network formed to divide the water flow of the washing water is disposed in the plurality of spray holes and sprayed. The method according to claim 1, The nozzle network comprises a plurality of dishwasher disposed corresponding to each of the plurality of injection holes. The method according to claim 2, The plurality of nozzle networks are dishwashers each formed with a different size of the manhole. The method according to claim 1, The nozzle network is formed in a shape corresponding to the spray nozzle, it is coupled to the spray arm detachable dishwasher. The method according to claim 1, The injection nozzle includes a first spraying arm receiving washing water from the washing pump, and a second spraying arm coupled to the first spraying arm to be detachable and having the plurality of spraying holes formed therein, And the nozzle network is detachably coupled to the second sandstone. The method according to claim 1, The nozzle network is dishwasher made of a polygonal network structure.

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