KR20080105296A - Dish washer - Google Patents

Abstract

A dishwasher is provided to remove food wastes stuck to tableware smoothly by washing tableware using washing water and steam. A dishwasher using washing water and steam includes a tub providing a space for washing tableware, a steam generator generating steam to be supplied to the tub, an injection nozzle(230) injecting the steam supplied form the steam generator to the tub, and a nozzle assembly having an inlet port placed to make the steam flow inward in the different direction from the steam injection direction of the injection nozzle.

Description

Dishwasher {Dish washer}

1 is a perspective view showing a dishwasher according to the present invention.

2 is a longitudinal sectional view of the dishwasher of FIG.

Figure 3 is an exploded perspective view of the nozzle assembly according to an embodiment of the present invention.

4 is a cross-sectional view taken along the line II of FIG. 3.

FIG. 5 is a II-II cross-sectional view of FIG. 3. FIG.

6 is an exploded perspective view of a nozzle assembly according to another embodiment of the present invention.

7 is a side view of the nozzle assembly of FIG.

8 is a cross-sectional view taken along line III-III of FIG. 6;

<Description of main parts of drawing>

18: tub 100: steam generator

200: nozzle assembly 210: case

211: mediator 220: inlet

230: injection hole 240: discharge port

The present invention relates to a dishwasher equipped with a steam generator.

A general dishwasher is a device that sprays the washing water at a high pressure inside the tub, and washes the sprayed water on the dishes so that foreign matters such as food residues on the surface of the dishes are washed. Then, the food waste is filtered out of the filter so that the washing water is recycled, and the detergent is released in the washing water so that the food waste falls smoothly.

On the other hand, in order to improve the original function of such a dishwasher, a method of improving the washing efficiency of the dishwasher by heating the washing water to better dissolve the detergent has been proposed, the high temperature wash water and The same solid food residue is smoothly removed.

However, even with this method, there is a problem in increasing the efficiency of dish washing. In particular, when rice used as a staple food of Asians is buried in tableware, the food waste is not easily washed, so the cleaning efficiency becomes more problematic. This problem is caused by the soaking operation of food waste by high temperature washing water. Even if it is not completely solved. Furthermore, since the operation called takes a lot of time, there is a problem that the operation cycle of dishwashing is that long.

The present invention provides a dishwasher capable of smoothly removing food waste stuck to the dishes by washing the dishes using washing water and steam.

In addition, the present invention provides a dish washer that can prevent the dirt, etc. generated during dish washing to be introduced into the steam generating device for generating steam.

In addition, the present invention provides a dishwasher capable of reducing the condensation of steam by allowing the condensed water generated during steam supply to be smoothly discharged.

The dishwasher according to the present invention includes a tub for providing a space for washing dishes, a steam generator for generating steam for supplying the tub, a spray hole for spraying steam supplied from the steam generator, and It may include a nozzle assembly having an inlet which is arranged to introduce the steam in a direction different from the steam injection direction of the injection port.

Preferably, the injection port is provided on the front of the nozzle assembly, the inlet may be provided on the side of the nozzle assembly.

In addition, the nozzle assembly may further include a guide for guiding the steam introduced into the inlet, it is preferable that the guide portion is inclined downward toward the inlet.

In addition, the nozzle assembly may further include a medium defined by a predetermined space and the outlet communicating with the medium, the outlet is provided in the lower portion of the nozzle assembly, the lower surface of the medium is in the direction of the outlet It is preferable to incline to.

Here, the medium is not only a space in which steam is introduced as a predetermined space, but also a space in which dirt introduced into the nozzle assembly is collected and condensed water generated by condensation of steam is collected.

The dishwasher according to the present invention in another aspect has a tub for providing a space for washing dishes, a steam generator for generating steam for supplying the tub, and an intermediate part defined as a predetermined space, wherein the steam generator is provided. It may include a nozzle assembly to allow the steam supplied from the injection to the tub via the intermediate portion.

To this end, the nozzle assembly may include a case having the intermediate portion, an inlet for introducing the steam supplied from the steam generator into the intermediate portion, and an injection port through which the steam of the intermediate portion is injected into the tub.

The nozzle assembly may further include a discharge port communicating with the intermediate part, wherein the discharge port is provided under the case, and a lower surface of the intermediate part is inclined toward the discharge port.

The inlet may be formed such that the inflow direction of the steam supplied from the steam generating device forms a predetermined angle with the steam injection direction of the injection port. Preferably, the inlet may be formed such that the steam inflow direction is perpendicular to the steam injection direction of the injection hole.

According to the dishwasher according to the present invention having the configuration as described above, not only can increase the dish washing efficiency by washing the dishes using the washing water and steam, the dirt generated during the dish washing is introduced into the steam generator. Can be prevented.

Hereinafter, with reference to the accompanying drawings will be described in detail dishwasher according to the present invention.

1 is a perspective view showing a dishwasher according to the present invention.

Referring to FIG. 1, the dishwasher according to the present invention forms an exterior and a case 1 having a front opening, a door 2 for opening and closing an opened front of the case 1, and a shape of the door 2. It may include a control panel (3) provided on the upper side to display and control the operation of the dishwasher.

The control panel 3 includes a power switch 5 for turning on / off the power of the dishwasher, a door handle 4 for opening and closing the door 2, and a dishwasher according to a user's instruction. A function operation unit 7 for performing the operation, a display unit 8 for displaying an operation state of the dishwasher, a steam outlet 6 for discharging hot air inside the dishwasher to the outside of the dishwasher, and the like may be provided. .

2 is a view illustrating a longitudinal section of the dish washing machine of FIG. 1.

Referring to FIG. 2, the dishwasher according to the present invention is provided with a tub 18 provided inside the case 1 to provide a space for washing dishes, and provided below the tub 18 to wash dishes. It may include a sump (16) for collecting the washing water, and to filter again the dirt contained in the washing water to be sprayed again.

The sump 16 is provided with a predetermined pump (not shown) such as an impeller for pumping the wash water stored in the sump 16. Preferably, the sump 16 may further include a heater (not shown) for heating the washing water stored in the sump 16. Then, the detergent may be well dissolved in the washing water, and food waste, etc. deposited on the tableware may be called by the heated washing water, thereby increasing the washing efficiency.

Inside the tub 18, a plurality of racks 11 and 12 separated up and down, and spray arms 14, 15 and 24 for spraying washing water toward the respective racks 11 and 12, respectively. This can be formed. In addition, a filter 17 may be provided below the tub 18, and dirt included in the washing water may be filtered while passing through the filter 17. In addition, a washing water flow passage 19 may be provided at one side of the tub 18 to supply the washing water to the upper injection arm 14.

In addition, the dishwasher according to the present invention and the steam generating device 100 for generating steam for supply to the tub 18, and to supply the steam generated in the steam generating device 100 to the tub 18 It may further include a steam flow path 110 and at least one nozzle assembly 200 to allow the steam supplied from the steam flow path 110 is injected into the tub (18).

Preferably, the steam generator 100 may be provided at the lower portion of the tub (18). Then, steam generated by the steam generator 100 may be smoothly supplied to the tub 18. This is because steam is generally lighter than air and tends to rise upwards. However, the dishwasher according to the present invention is not limited to the position where the steam generator 100 is provided. That is, the steam generator 100 may be provided on the side of the tub 18.

In detail, the steam generator 100 includes a case 102 for receiving water, a heater 104 for heating the water contained in the case 102, and a water level for detecting the water level of the water contained in the case 102. The sensor 106 may include a fuse (not shown) to prevent overheating of the heater 104.

In addition, the dishwasher according to the present invention is connected to the outside water supply line 22 branched so that water is supplied to the tub 18 and the steam generator 100, drain pipe for draining the contaminated washing water used for washing It may further include a tub valve 40 and the steam valve 41 for opening and closing the water supply line 22 to control the amount of water supplied through the furnace 23 and the water supply line 22. Here, the tub valve 40 controls the amount of water supplied to the tub 18, the steam valve 41 controls the amount of water supplied to the steam generating device 100 side.

Hereinafter, an operation of the dish washing machine according to the present invention will be briefly described with reference to FIGS. 1 and 2.

First, when the user wants to perform dish washing, the door 2 is closed by storing the dishes in the racks 11 and 12.

Then, when the user operates the desired state of dish washing by operating the function manipulation unit 7 and starts the operation, the operation of the dish washing machine proceeds while the operating state of the dish washing machine is displayed on the display unit 8.

Meanwhile, referring to the operation of the dishwasher centering on the flow order of the washing water flowing in the tub 18, the washing water sprayed from the spray arms 14, 15, and 24 is rack 11, 12. After washing the dishes placed in the), it flows down to the sump (16) to fall downward. A predetermined pump such as an impeller is placed inside the sump 16 to pressurize the washing water to be supplied to the injection arms 14, 15, and 24 again.

As such, by filtering the food debris by the filter 17 while the wash water is circulated from the sump 16 to the injection arms 14, 15 and 24, the washing water may be prevented from being excessively contaminated or clogged with the nozzle. have.

In addition, the dishwasher according to the present invention may include a washing process using steam. In order to perform the washing process using the steam as described above, the steam generated by the steam generator 100 is supplied to the tub 18 through the steam flow path 110 and the nozzle assembly 200. .

Therefore, according to the dishwasher according to the present invention, it can be expected to improve the washing efficiency of the dishwasher can be additionally obtained by the high temperature and high humidity of the steam. For example, when washing dishes using steam and washing water, dirt that is hardened on the dishes may be called by steam, and when high pressure washing water is sprayed in the state, dirt, which is solidified on the dishes, may be easily removed.

By the way, the dirt from the dish during the dish washing process may be introduced into the nozzle assembly 200, if the dirt introduced into the nozzle assembly 200 is introduced into the steam flow path 110 to remove it later It becomes difficult to do In addition, most of the foreign matter that comes off the tableware is food waste, and there is a risk of corruption in the high temperature and high humidity environment inside the steam flow path (110).

In addition, the dirt and the like may be introduced into the steam generator 100 through the steam flow path 110, it is more difficult to remove the dirt and the like introduced into the steam generator 100, When dirt and the like introduced into the steam generator 100 accumulate and rot, the steam generator 100 may be corroded or may cause severe odor, which is undesirable.

Therefore, it is necessary to prevent the dirt and the like introduced through the nozzle assembly 200 from flowing into the steam flow path 110.

Hereinafter, the nozzle assembly 200 according to the present invention will be described in detail.

3 is an exploded perspective view of a nozzle assembly according to an embodiment of the present invention, FIG. 4 is a sectional view taken along the line I-I of FIG. 3, and FIG. 5 is a sectional view taken along the line II-II of FIG.

3 to 5, the nozzle assembly 200 according to the present embodiment is the tub 18 via the intermediate portion 211 in which the steam supplied from the steam generator 100 is defined as a predetermined space. To be sprayed). Then, the dirt generated in the process of washing the dishes may be prevented from entering the steam generator 100 through the nozzle assembly 200.

This is because, if there is no intermediate portion 211 defined as a predetermined space, dirt or the like introduced through the nozzle assembly 200 may directly flow into the steam flow path 110. However, if the nozzle assembly 200 has the intermediate portion 211 defined as a predetermined space as in the present embodiment, dirt or the like introduced through the nozzle assembly 200 may be transferred to the intermediate portion 211. It may be collected can be prevented to directly enter the dirt, etc. into the steam flow path 110, it can be prevented from entering the dirt, etc. into the steam generator (100).

In addition, the medium 211 is also a space for collecting condensed water condensed steam. That is, some of the steam introduced from the steam flow path 211 may be converted into condensed water in the process of being injected into the tub 18 via the intermediate portion 211, the generated condensate flows through the intermediate portion 211 Can be collected at the bottom of the. Then, the amount of condensate generated in the process of supplying steam to the tub 18 can be reduced, so that a large amount of steam can be supplied into the tub 18, so that the dish washing efficiency can be further improved. Can be.

This is because the condensed water generated in the process of spraying the steam supplied from the steam generator 100 to the tub 18 via the steam passage 110 and the intermediate portion 211 flows back to the steam passage 110. If so, the continuously supplied steam can be more easily condensed by the condensate.

As described above, the mediation unit 211 according to the present embodiment is not only a space into which steam is introduced as a predetermined space, but also the dirt introduced into the nozzle assembly 200 through the injection hole 230 is collected. It is also a space where condensate generated by condensation of steam is collected.

To this end, the nozzle assembly 200 is the case 210 having the intermediate portion 211, and the inlet portion 220 is connected to the steam flow path 110 to introduce steam into the intermediate portion 211 and In addition, the steam of the intermediate unit 211 may include a spray hole 230 is injected into the tub (18).

Then, the steam supplied from the steam flow passage 211 is introduced into the intermediate portion 211 through the inlet 220, the steam introduced into the intermediate portion 211 is a tub (through the injection port 230) 18).

Preferably, the nozzle assembly 200 may further include a discharge port 240 in communication with the intermediate portion 211. Then, the dirt introduced into the case 210 through the injection port 230 and collected in the intermediate portion 211 may be discharged to the tub 18. In addition, condensate generated in the process of steam passing through the medium 211 may be discharged directly to the tub 18 through the outlet 240, and condensation of steam may be reduced accordingly.

More preferably, the outlet 240 is provided below the nozzle assembly 200, the lower surface 212 of the intermediate portion 211 may be formed to be inclined in the direction of the outlet (211). Then, the dirt and condensed water collected in the lower portion of the intermediate portion 211 may be smoothly discharged to the tub 18 through the outlet 240. Therefore, the dirt and condensed water collected in the intermediate portion 211 can be further prevented from flowing into the steam flow path (110).

Meanwhile, arrows shown in FIGS. 3 to 5 indicate a flow direction of steam, and the inlet part 220 has a steam inflow direction introduced from the steam flow path 110 at a predetermined angle with a steam injection direction of the injection hole 240. It can be formed to achieve. Preferably, the inlet part 220 may be formed such that the steam inflow direction is perpendicular to the steam injection direction of the injection hole 240. Then, the inlet 220 can be easily connected to the steam flow path 110, it is easy to install the nozzle assembly 200.

Because, the steam generator 100 is provided on the tub 18, the nozzle assembly 200 is preferably provided on the tub 18 wall, in this case, the steam flow path 110 is provided from the bottom up Because it becomes. That is, the direction of the steam supplied through the steam flow path 110 is directed from the bottom up, the direction of the steam injected into the tub 18 through the injection port 230 should be horizontal.

Therefore, if the inflow portion 220 is formed such that the steam inflow direction introduced through the steam flow path 110 is perpendicular to the steam injection direction of the injection hole 230, the inflow portion 220 is easily a steam flow path ( 110).

6 is an exploded perspective view of the nozzle assembly according to another embodiment of the present invention, Figure 7 is a side view of the nozzle assembly of Figure 6, Figure 8 is a cross-sectional view of III-III of FIG.

The nozzle assembly 300 according to the present embodiment has a different structure from preventing dirt from being introduced into the steam flow path 110 through the nozzle assembly 300 as compared with the above embodiment. That is, the nozzle assembly 200 according to the embodiment is configured to prevent the inflow of dirt and the like into the steam flow path 110 by having a medium 211 which is a predetermined space therein. The inflow direction of the steam flowing into the nozzle assembly 300 and the injection direction of the steam injected from the nozzle assembly 300 to the tub 18 is different to prevent dirt from entering the steam flow path 110. It is a constitution.

6 to 8, the nozzle assembly 300 according to the present embodiment includes a spray hole 330 in which the steam supplied from the steam generator 100 is injected into the tub 18, and the spray hole 330. It may be provided with an inlet 320 is disposed so that the steam flows in a direction different from the steam injection direction of.

In detail, the inlet 320 is connected to the steam flow path 110 to allow the steam generated from the steam generating device 100 to flow into the nozzle assembly 300. In addition, the steam introduced into the inlet 320 is injected into the tub 18 through the injection hole 330.

In this case, the inlet 320 may be provided at a position such that a steam inflow direction flowing from the steam flow path 110 is formed in a direction different from a steam injection direction injected into the tub 18 through the injection hole 330. . Then, in order for the dirt introduced into the injection hole 330 to be introduced in a different direction from the introduced direction in order to flow into the inlet 320, the nozzle is introduced into the nozzle assembly 300 through the injection hole 330. Soil may be prevented from entering the inlet 320.

Preferably, as shown in Figures 6 to 8, the injection hole 330 is provided on the front surface of the nozzle assembly 300, the inlet 320 is to be formed on the side of the nozzle assembly 300 Can be. Then, since the dirt introduced through the injection hole 330 must be folded at a right angle in order to flow into the inlet 320, the dirt introduced into the nozzle assembly 300 through the injection hole 330 Inflow to the inlet 320 may be further prevented.

On the other hand, the arrow shown in Figure 6 indicates the flow direction of the steam, as shown in Figure 6, the inlet direction of the steam flowing into the nozzle assembly 300 and the injection hole 330 through the inlet 320 It is disclosed that the injection directions of the steam injected into the tub 18 are perpendicular to each other.

Therefore, according to the nozzle assembly 300 according to the present embodiment, dirt, etc. introduced into the nozzle assembly 300 through the injection hole 330 may be prevented from entering the inlet 320. Accordingly, dirt and the like may be prevented from flowing into the steam flow path 110 and the steam generator 100 connected to the inlet 320.

In addition, the nozzle assembly 300 may further include a guide part 350 for guiding the steam introduced into the inlet 320. The guide part 350 may be formed in a horizontal direction of the nozzle assembly 300 such that steam introduced through the inlet 320 flows in the same direction as the inflow direction.

Preferably, the guide portion 350 may be provided to be inclined downward as it moves away from the inlet 320. Then, dirt or the like introduced into the injection hole 330 may be further prevented from flowing into the inlet 320. This is because dirt or the like introduced into the injection hole 330 must go up the inclined surface in order to flow into the inlet 320.

In addition, as the guide portion 350 moves away from the inlet port 320, the downwardly inclined surface, condensed water generated by condensation of some of the steam flowing along the guide unit 350 flows into the inlet port 320. Can be prevented, so that the generation of condensate can be reduced. That is, since the generated condensate flows in a direction away from the inlet 320 along the guide part 350, the condensed water may be prevented from flowing into the inlet 320 and the steam flow path 110. This may increase the amount of steam supplied to the tub 18 to improve dishwashing efficiency.

On the other hand, the nozzle assembly 300 according to the present embodiment and the case 310 having a medium portion 311 is defined as a predetermined space as in the nozzle assembly 200 according to the embodiment shown in Figs. The outlet 312 may further include an outlet 340 communicating with the intermediate part 311, and the lower surface 312 of the intermediate part 311 may be formed to be inclined toward the outlet 340. However, the detailed description of the components is the same as the description of the components in the embodiment shown in Figures 3 to 5, detailed description thereof will be omitted.

Preferably, the lowest portion of the guide portion 350 may be formed in direct communication with the outlet 340. Then, the dirt and condensate collected in the guide unit 350 may be immediately discharged to the tub 18.

The present invention is not limited to the above-described embodiments, and can be modified by those skilled in the art as can be seen from the appended claims, and such modifications are within the scope of the present invention.

According to the dishwasher according to the present invention, since the dishes are washed using the washing water and the steam, foreign matters strongly adhered to the dishes can be easily removed.

In addition, the dishwasher according to the present invention can prevent the dirt and the like introduced in the process of washing the dishes to the steam flow path and the steam generating device.

In addition, the dishwasher according to the present invention can prevent the condensate generated in the process of supplying steam to the steam flow path or discharge the condensate generated directly into the tub to reduce the condensation of steam, Therefore, the dish washing efficiency can be improved.

Claims (15)

A tub providing a space for washing dishes; A steam generator for generating steam for supplying the tub; And And a nozzle assembly having an injection port through which the steam supplied from the steam generator is injected into the tub, and an inlet port in which the steam is introduced in a direction different from the steam injection direction of the injection port. The dishwasher of claim 1, wherein the injection hole is provided at the front surface of the nozzle assembly, and the inlet is provided at the side of the nozzle assembly. The dishwasher of claim 2, wherein the nozzle assembly further comprises a guide part for guiding steam introduced into the inlet. The dishwasher of claim 3, wherein the guide portion is inclined downward as it moves away from the inlet. The dishwasher according to any one of claims 1 to 4, wherein the nozzle assembly further comprises an intermediate unit defined as a predetermined space. The dishwasher of claim 5, wherein the nozzle assembly further comprises a discharge port communicating with the intermediate part. The dish washer of claim 6, wherein the outlet is provided under the nozzle assembly. The dish washing machine according to claim 7, wherein the lower surface of the intermediate portion is inclined toward the outlet. A tub providing a space for washing dishes; A steam generator for generating steam for supplying the tub; And And a nozzle assembly having an intermediate part defined by a predetermined space and allowing steam supplied from the steam generator to be injected into the tub via the intermediate part. The method of claim 9, wherein the nozzle assembly is a case having the intermediate portion; An inlet which introduces steam supplied from the steam generator into the intermediate unit; And And a jet hole through which the steam of the intermediate part is injected into the tub. The dishwasher of claim 10, wherein the nozzle assembly further comprises a discharge port communicating with the intermediate part. The dishwasher of claim 11, wherein the outlet is provided at a lower portion of the case. The dish washing machine according to claim 11 or 12, wherein the lower surface of the intermediate portion is inclined toward the discharge port. The dish washing machine according to claim 10, wherein the inflow portion is formed such that an inflow direction of steam supplied from the steam generator is at an angle with a steam injection direction of the injection hole. The dish washing machine according to claim 14, wherein the inflow portion is formed at a right angle with the steam injection direction of the injection hole.

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