KR20120022429A - A dishwasher - Google Patents

Abstract

PURPOSE: A dishwasher is provided to easily clean the inner side of a jetting nozzle or a nozzle holder because the jetting nozzle or nozzle holder are joined or separated by using one touch mode. CONSTITUTION: A dishwasher comprises a washing compartment, a sump, one or more jetting nozzles, a nozzle holder(50). The washing compartment comprises a washing water guide for flowing the washing water. The sump installed in a side of the washing compartment comprises a washing pump. The jetting nozzle is installed inside of the washing compartment. The jetting nozzle jets the washing water passing through the washing water guide to dishware. The nozzle holder comprises a nozzle joining unit(55) joined to the nozzle. The jetting nozzle comprises a case and a flow guide(125). The flow guide is installed in the lower part of the case. Water supplied from the nozzle holder diverges to both sides of the case by the flow guide.

Description

Dishwasher {A dishwasher}

Embodiment according to the present invention relates to a dishwasher, and more particularly, to a dishwasher to improve the structure of the nozzle provided in the washing tank so that the washing water is smoothly sprayed.

In general, the dishwasher is a device for washing dishes by spraying the washing water to the dishes with food or dirt.

In detail, the dishwasher supplies clean washing water to the sump provided on one side of the washing tank, and then the washing water spraying mechanism sprays the washing water to the dishes in the washing tank to wash the dishes. The sump is provided with a washing pump which provides suction power for the circulation of the washing water.

The wash water used to wash the dishes is recovered to the sump and then supplied back to the wash water injection mechanism through the filter device in the sump.

When the dishes are washed through the above process, all of the washing water present in the washing tank and the sump is drained to the outside. At this time, the foreign matter filtered by the filter device may be discharged to the outside of the dishwasher with the washing water.

The washing tank is provided with at least one spray nozzle for spraying the washing water onto the dishes. The spray nozzle may be provided with a plurality of spray holes for washing water is sprayed toward the dish or rack. The plurality of injection nozzles may be installed in different positions.

According to the conventional dishwasher, there is a problem that after the washing water flows into the injection nozzle, it is not smooth to flow to the injection port.

For example, when the washing water flows concentrated to any one of the plurality of injection holes, the water pressure of the washing water injected from the plurality of injection holes is changed. Therefore, there is a problem that the injection amount of the washing water is uneven throughout the washing tank space.

That is, only the dishes provided at a specific position of the washing tank is washed smoothly, there is a problem that the washing of the dishes provided at some positions is not effectively made.

On the other hand, the injection nozzle may be coupled to the nozzle holder. According to the conventional dishwasher, the spray nozzle and the nozzle holder are coupled by a fusion method, which causes a problem that the coupling portion of the spray nozzle and the nozzle holder is twisted. In addition, this assembly method has a problem that the process is complicated.

An embodiment according to the present invention is to provide a dishwasher for guiding the flow of the washing water, so that the washing water introduced into the spray nozzle can be easily delivered to the plurality of injection holes.

In the dishwasher according to the embodiment of the present invention, the dish is accommodated, the washing tank is provided with a wash water guide for washing water flow; A sump provided at one side of the washing tank and provided with a washing pump; At least one nozzle provided in the washing tank and configured to spray the washing water through the washing water guide toward the dishware; And a nozzle holder having a nozzle coupler coupled to the nozzle, wherein the nozzle comprises: a case defining a flow path therein; And a flow guide provided at a lower portion of the case and allowing water introduced from the nozzle holder to be branched to both sides of the case.

According to another aspect of the present invention, a dishwasher includes: a washing tank having a washing water guide through which washing water flows; A nozzle holder coupled to the wash water guide; A first case coupled to the nozzle holder and having a washing water inlet; A rotating shaft coupled to one side of the washing water inlet and rotatably provided with respect to the nozzle holder; A second case coupled to a lower side of the first case and defining a washing water flow path together with the first case; And a flow guide protruding upwardly from a lower surface of the second case and allowing the washing water introduced from the iron-containing water inlet to be branched in at least two directions.

According to the dishwasher according to the embodiment of the present invention, since a guide structure having a specific shape is provided inside the spray nozzle, the washing water introduced into the spray nozzle can be easily distributed in both directions.

In addition, since the spray nozzle and the nozzle holder can be easily fastened and detached in a one-touch manner, there is an advantage that the cleaning of the spray nozzle or the nozzle holder is easy.

And, it is possible to reduce the number of assembly of the injection nozzle, there is an effect that it is possible to prevent the occurrence of distortion in the coupling portion of the dispersion nozzle and the nozzle holder.

In addition, there is an effect that the rotation of the injection nozzle can be easily made by the coupling structure of the rotating shaft and the housing provided in the injection nozzle.

1 is a cross-sectional view of a dish washer according to an embodiment of the present invention.
2 is an exploded perspective view of the upper nozzle and the nozzle holder according to an embodiment of the present invention.
3 is a perspective view of a rotating shaft according to an embodiment of the present invention.
4 is a perspective view of a housing according to an embodiment of the present invention.
5 is a cross-sectional view showing a coupling state of the upper nozzle and the nozzle holder according to an embodiment of the present invention.
6 is a cross-sectional view showing a state in which the washing water is introduced into the upper nozzle according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of the spirit of the present invention can be easily made by adding, changing, or deleting other elements. Can suggest.

1 is a cross-sectional view of a dish washer according to a first embodiment of the present invention.

Referring to Figure 1, the dishwasher 1 according to an embodiment of the present invention, a case 10 for forming the appearance, a tub 11 accommodated in the case 10 to form a washing tank, It is provided on the front of the tub 11 includes a door 12 for opening and closing the washing tank and a sump 20 provided below the tub 11 and storing the washing water.

Inside the tub 11, an upper rack 13 and a lower rack 14 in which dishes are stored are provided. The upper rack 13 is disposed above the lower rack 14 by a predetermined distance. In addition, the upper rack 13 and the lower rack 14 may be guided by a guide rail (not shown) provided on the inner surface of the tub 11, and may be drawn out to the front of the tub 11.

Above the sump 20, a top nozzle 15, an upper nozzle 100, and a lower nozzle 17 are provided to allow the washing water supplied from the sump 20 to be injected into the washing tank.

In detail, the lower nozzle 17 is coupled to the upper side of the sump 20 to spray the washing water to the lower portion of the washing tank, and the sprayed washing water is directed to the dishes mounted on the lower rack 14. In addition, the sump 20 is provided with a lower nozzle coupler 62 coupled to the lower nozzle 17.

The lower nozzle 17 includes a plurality of lower injection holes 17a for spraying washing water. The lower injection holes 17a may be formed at both sides of the nozzle coupling portion 62.

The upper nozzle 100 is located in the center of the washing tank to spray the washing water toward the upper rack 13, the top nozzle 15 is disposed in the ceiling portion of the tub 11 to spray the washing water downwards do.

On the rear part of the tub 11, a washing water guide 40 through which washing water flows is provided. The washing water guide 40 may flow at least a portion of the washing water via the sump 20. In addition, the sump 20 is provided with a guide connecting portion 64 coupled to the wash water guide 40.

Between the upper nozzle 100 and the wash water guide 40, a nozzle holder 50 is provided. The nozzle holder 50 extends forward from the wash water guide 40 and is coupled to an approximately central portion of the upper nozzle 100.

The washing water passing through the washing water guide 40 may flow to the upper nozzle 100 via the nozzle holder 50 or to the top nozzle 15.

The upper nozzle 16 includes a plurality of upper injection holes 115 for spraying washing water. The upper injection holes 115 may be formed at both sides of a portion to which the nozzle holder 50 is coupled.

Hereinafter, the configuration of the upper nozzle 100 will be described in detail with reference to the drawings. The structure of the nozzle will be described by taking the upper nozzle 100 as an example, but it will be apparent that the same structure is also applicable to the lower nozzle.

2 is an exploded perspective view of the upper nozzle and the nozzle holder according to an embodiment of the present invention, Figure 3 is a perspective view of a rotating shaft according to an embodiment of the present invention, Figure 4 is a perspective view of a housing according to an embodiment of the present invention, 5 is a cross-sectional view showing a coupling state of the upper nozzle and the nozzle holder according to an embodiment of the present invention.

2 to 5, the upper nozzle 100 according to the exemplary embodiment of the present invention includes cases 110 and 120 to form an internal flow path.

In detail, the cases 110 and 120 include an upper case 110 and a lower case 120. The upper case 110 is coupled to the upper side of the lower case 120.

By combining the upper case 110 and the lower case 120, the upper nozzle 100 has a hollow rod shape to form a predetermined size and thickness. In addition, a washing water flow path is formed inside the upper nozzle 100.

On the upper surface of the upper case 110, the holder coupling portion 117 is coupled to the nozzle holder 50 and a plurality of upper injection holes to allow the washing water flowing inside the upper nozzle 100 to be sprayed to the outside 115 is formed.

The holder coupling part 117 is formed at an approximately central portion of the upper case 110, and may be understood as an inlet part of the washing water flowing into the upper nozzle 100.

The plurality of upper injection holes 115 may be disposed in left and right directions about the holder coupling part 117.

In the process of spraying the washing water through the plurality of upper injection holes 115, the upper nozzle 100 may be rotated by using the force from which the washing water is ejected as a driving force. For easy rotation of the upper nozzle 100, the direction in which the washing water is sprayed may be formed to be inclined at a predetermined angle with respect to the vertical direction.

In addition, the washing water may be sprayed in various forms so that the washing water may be evenly sprayed on the dishes. In detail, the plurality of upper injection holes 115 may be formed to have different angles of the washing water sprayed from each of the upper injection holes 115, and the direction in which the plurality of upper injection holes 115 are disposed may also be disposed in a different form than a straight line.

The lower case 120, the flow guide 125 for guiding the washing water flowing into the upper nozzle 100 in at least two directions of the upper nozzle 100, that is, in both directions of the upper nozzle 100; Is provided.

The flow guide 125 is configured to protrude upward from the upper surface of the lower case 120. In detail, the flow guide 125 may be rounded as a hemispherical shape.

In addition, the flow guide 125 is formed at a position corresponding to the holder coupling part 117. That is, the flow guide 125 is located directly below the holder coupling portion 117.

In other words, since the flow guide 125 has a hemispherical shape, a line ℓ1 (see FIG. 6) passing through the center of the flow guide 125 passes through the center of the holder coupling part 117.

By such a configuration, the washing water introduced into the upper nozzle 100 through the holder coupling part 117 may be branched in both directions of the upper nozzle 100 while being in contact with the flow guide 125.

The branched wash water may be moved to a plurality of upper injection holes 115 formed at both sides of the flow guide 125, and discharged to the outside through the upper injection holes 115.

The upper nozzle 100 includes a rotating shaft 130 coupled to the upper case 110 and a housing 140 coupled to an outer side of the rotating shaft 140. The rotation shaft 130 is provided to be rotatable inside the housing 140.

The rotation shaft 130 may be coupled to the holder coupling part 117 and may be rotatably provided together with the holder coupling part 117. The housing 140 supports the rotation shaft 130 and may be coupled to the nozzle holder 50.

At one end of the nozzle holder 50, a nozzle coupling portion 55 coupled to the housing 140 is provided. The lower portion of the nozzle coupling portion 55 may be opened, and the opened lower portion may communicate with the upper nozzle 100.

In detail, the rotating shaft 130, the insertion end 131 is coupled to the holder coupling portion 117 and the engaging end extending outward from the upper end of the insertion portion 131 and supported by the housing 140 ( 135).

The insertion part 131 has a substantially cylindrical shape. At least a portion of an outer circumferential surface of the insertion part 131 is inserted into the holder coupling part 117. The locking end 135 may be engaged with an upper side of the housing 140.

At least a portion of the insertion part 131 is formed by cutting the rotation shaft 130, and a locking hole 133 coupled to the holder coupling part 117 is formed. A plurality of the locking holes 133 are formed along the outer circumferential surface of the insertion part 131.

The locking hole 133 is coupled to the locking hook 118 (see FIG. 5) provided in the holder coupling part 117. The hook hook 118 may protrude in an inner direction of the holder coupling part 117 and a plurality of hooks 118 may be formed on an inner circumferential surface of the holder coupling part 117.

When the rotating shaft 130 is coupled to the upper side of the upper case 110, the hook hook 118 is elastically deformed in the outward direction, when the hook hook 118 is restored, the hook hook 118 is It may be inserted into the locking hole 133.

On the contrary, when the rotation shaft 130 is pulled from the holder coupling portion 117, in the process of elastic deformation and restoration of the hook hook 118, the rotation shaft 130 may be separated from the holder coupling portion 117. have.

According to such a configuration, since the rotary shaft 130 may be coupled to the holder coupling part 117 only by pressing the rotary shaft 130 (one-touch method), the rotary shaft 130 is the upper case. There is an effect that can be easily fastened or detached to (110).

The rotary shaft 130 further includes a plurality of cutouts 132. The cutout 132 has a shape that is cut upward from the lower end of the insertion portion 131.

By the cutout 132, the stress transmitted from the holder coupling part 117 or the upper case 110 is converted into the strain energy of the rotation shaft 130. As a result, the possibility of breakage of the rotating shaft 130 is reduced.

The housing 140 includes a ring-shaped shaft support 141 having a predetermined diameter and a ring-shaped coupling support 142 having a larger diameter than the shaft support 141. The coupling support part 142 is disposed outside the shaft support part 141.

At the upper end of the shaft support part 141, a first support end 141a on which the locking end 135 of the rotary shaft 130 is supported is formed. The inner space of the shaft support part 141 may be defined as an accommodation space 145 in which the rotation shaft 130 is accommodated.

A second support end 142a on which the nozzle coupling part 55 is supported is formed at an upper end of the coupling support part 142.

Between the shaft support part 141 and the coupling support part 142, it is defined by the coupling space 142b to which at least a portion of the nozzle coupling part 55 is coupled. The inner insertion portion 55 is coupled to the coupling space 142b.

The inner insertion part 55 may be detachably fitted into the coupling space 142b. The friction force formed between the shaft support part 141 and the coupling support part 142 and the inner insertion part 55 may allow the upper nozzle 100 to be rotatably coupled to the nozzle holder 50. It has a size more than enough.

The nozzle coupling portion 55 further includes an outer insertion portion 56 disposed outside the coupling support portion 142. The coupling support part 142 is coupled between the inner insertion part 55 and the outer insertion part 56.

The outer side of the coupling support 142 is provided with a reinforcing rib 143 to reinforce the strength of the housing 140. A plurality of reinforcing ribs 143 may be provided along the outer circumferential surface of the coupling support part 142.

As described above, the rotary shaft 130 is detachably fastened to the upper nozzle 100 by the one-touch method, and the housing 140 may be detachably fastened to the nozzle holder 50. Assembly can be simplified.

This fastening method prevents a phenomenon in which the rotating shaft 130 or the upper nozzle 100 is twisted in a predetermined direction as compared with that in which the rotating shaft 130 is coupled to the upper nozzle 100 by ultrasonic welding. The effect is that you can.

6 is a cross-sectional view showing a state in which the washing water is introduced into the upper nozzle according to an embodiment of the present invention.

Referring to FIG. 6, the washing water flowing from the nozzle holder 50 flows into the upper nozzle 100 according to the exemplary embodiment of the present invention.

In detail, the washing water flowing along the nozzle holder 50 passes downward through the rotating shaft 130 by bending downward from the nozzle coupling portion 55. And, the wash water is in contact with the flow guide 125 of the hemispherical shape.

A line 1 passing through the center of the rotation shaft 130 coincides with the center line of the flow guide 125 and passes through the top end of the flow guide 125.

The washing water passing through the rotating shaft 130 is branched in both directions from the top of the flow guide 125.

The branched washing water may be sprayed to the washing tank through the upper injection hole 115 through the passage in the upper nozzle 100.

As such, since a guide member for branching the washing water is provided at the inlet portion of the washing water introduced into the upper nozzle 100, the washing water can be evenly spread in the inner flow path of the upper nozzle 100.

As a result, since the washing water may be moved in an equal amount with respect to each of the plurality of upper injection holes 115, the water pressure of the washing water sprayed from the plurality of upper injection holes 115 may be kept constant.

Therefore, since the washing water having a uniform spraying force may be injected into the washing tank, the washing of the dishes may be effectively performed.

11: tub 100: upper nozzle
110: upper case 118: hook hook
120: lower case 125: flow guide
130: rotating shaft 133: locking hole
140 housing 141 shaft support
142: coupling support 145: shaft receiving portion

Claims (10)

A washing tank in which dishes are stored and provided with a washing water guide through which washing water flows;
A sump provided at one side of the washing tank and provided with a washing pump;
At least one nozzle provided in the washing tank and configured to spray the washing water through the washing water guide toward the dishware; And
It includes a nozzle holder having a nozzle coupling portion coupled to the nozzle,
In the nozzle,
A case forming a flow path therein; And
And a flow guide provided at a lower portion of the case to allow water introduced from the nozzle holder to be branched to both sides of the case. The method of claim 1,
In the case,
A lower case having the flow guide; And
Coupled to the upper side of the lower case, the dishwasher including an upper case having a plurality of injection holes for spraying the washing water. The method of claim 2,
The flow guide is a dishwasher, characterized in that protruding from the lower case in a hemispherical shape. The method of claim 1,
And a virtual line passing through the center of the nozzle holder passes through the center of the flow guide. The method of claim 1,
A rotating shaft coupled to the case; And
The rotating shaft is accommodated rotatably, further comprises a housing coupled to the nozzle coupling portion. The method of claim 5, wherein
A hook hook elastically deformable to the case and coupled to the rotating shaft; And
The dishwasher provided on the rotating shaft, the hook hole is further inserted into the hook. The method of claim 5, wherein
In the housing,
A shaft support part on which the rotating shaft is supported; And
A dishwasher spaced apart from the outer side of the shaft support, the coupling support for supporting the nozzle coupling portion. The method of claim 7, wherein
And a coupling space into which the nozzle coupling portion is inserted between the shaft support portion and the coupling support portion. A washing tank provided with a washing water guide through which washing water flows;
A nozzle holder coupled to the wash water guide;
A first case coupled to the nozzle holder and having a washing water inlet;
A rotating shaft coupled to one side of the washing water inlet and rotatably provided with respect to the nozzle holder;
A second case coupled to a lower side of the first case and defining a washing water flow path together with the first case; And
And a flow guide protruding upwardly from the second case and allowing the washing water introduced through the washing water inlet to be branched in at least two directions. The method of claim 9,
The center line of the washing water inlet portion passes through the top of the flow guide.

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