KR20060124275A - Steam supply structure of dishwasher and dishwasher - Google Patents

Abstract

The dishwasher according to the present invention includes a tub in which dishes are accommodated; A door configured to open and close the open surface of the tub; In order to supply steam to the inside of the tub, the steam generator is continuously heated in the steam generator is heated to generate steam; And a steam supply passage connecting the steam generator and the inside of the tub.

According to the present invention, since physical, chemical, and biological washing can be performed satisfactorily at the same time, the use efficiency of the dishwasher can be improved.

In addition, the steam generator of the tube heating method is applied, it is possible to supply steam quickly whenever the steam is required during the operation of the dishwasher, it is possible to obtain the advantage that the overall stroke time of the dishwasher is reduced.

Description

Steam washer and steam providing unit for the same

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

Figure 2 is a perspective view of the open door of the dishwasher according to the present invention.

3 is a cross-sectional view of II ′ of FIG. 1.

4 is an enlarged view of portion “A” of FIG. 3;

5 is a cross-sectional view of the dishwasher illustrating another embodiment of the present invention.

6 is a flowchart illustrating a control method of the dishwasher according to the present invention.

7 is a cross-sectional view of the steam generator according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1 Case 2 Door 3 Control Panel 4 Door handle

5 power switch 7 function control panel 8 display unit

20: steam generator 21: steam supply passage 22: water supply line

23: drainage pipe 201, 202: heater 203: heat conduction unit

204: water pipe

The present invention relates to a dishwasher, and more particularly, to a dishwasher having a steam generator built in the dishwasher. More specifically, the present invention relates to a steam supply structure of the dishwasher and the dishwasher in which high temperature steam is supplied to the inner space of the dishwasher, thereby increasing the function of the dishwasher and improving the washing efficiency of the dishwasher.

In general, a dishwasher is a device in which washing water is sprayed at a high pressure inside a tub, and the sprayed water comes into contact with the dishes so that foreign substances such as food residues on the surface of the dishes are washed. 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 further improve the original function of such a dishwasher, the following cleaning efficiency of the dishwasher has been proposed more methods.

First, a method of improving the washing efficiency of the dishwasher by heating the washing water to better loosen the detergent has been proposed, and solid food waste such as rice is smoothly removed by the high temperature washing water.

In addition, since the administration of the dishwasher is divided into pre-washing and main washing, and food waste is called in the pre-washing section, dish washing is performed more reliably. In addition, by irradiating ultraviolet rays to the washed dishes, a way to suppress the growth of bacteria has been proposed.

However, even with the conventional 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, food waste is not easily washed, and washing efficiency becomes more problematic. This problem is not completely solved even if the soaking operation of food waste is performed by the hot washing water. Furthermore, since the operation called takes a lot of time, there is a problem that the stroke of dishwashing becomes that long.

Due to this problem, there is a problem that the operation efficiency of the dishwasher is lowered.

The present invention is proposed in order to solve the above problems, it is to propose a steam supply structure of the dishwasher and dishwasher to improve the washing efficiency of the tableware by making it possible to smoothly remove the food debris adhered to the dishwasher The purpose.

In addition, it is an object of the present invention to propose a steam supply structure of the dishwasher and the dishwasher, which is performed quickly, so that the dishwashing administration is shortened as much as the user's convenience is further improved.

In addition, an object of the present invention is to propose a steam supply structure of the dishwasher and the dishwasher in which steam is more quickly supplied to the inside of the tub.

Dishwasher according to the present invention for achieving the above object is a tub is accommodated; A door configured to open and close the open surface of the tub; In order to supply steam to the inside of the tub, the steam generator is continuously heated in the steam generator is heated to generate steam; And a steam supply passage connecting the steam generator and the inside of the tub.

Steam supply structure of the dishwasher according to another aspect of the present invention, the tub is accommodated therein; A steam generator provided outside the tub and directly flowing flowing water to generate steam; A valve controlling a water supply amount of water introduced into the steam generator; And a steam supply passage communicating the steam generator and the inner space of the tub.

According to the present invention, it can be expected that the washing efficiency of the dish can be improved, and the washing stroke of the dish can be shortened by that, thereby improving the user's convenience. In addition, since the steam supplied to the inside of the tub can quickly spread the entire space inside the tub, there is an advantage that the operation reliability of the dishwasher is improved.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments supported by the accompanying drawings, and those skilled in the art who understand the spirit of the present invention can add, change, delete, and remove other embodiments that fall within the scope of the same idea. It may be easily proposed by addition.

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

Referring to FIG. 1, the dishwasher includes a case 1 having an external appearance and a front opening, a door 2 for sealing an opened front of the case 1, and an upper side of the door 2. A control panel 3 for displaying and controlling the operation of the dishwasher is included.

In detail, 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. There is provided a function operation unit 7 in which a predetermined operation is performed, and a display unit 8 in which an operation state of the dishwasher is displayed.

2 is a perspective view of an open state of the door of the dishwasher according to the present invention.

Referring to FIG. 2, a tub 18 in which the washing water is accommodated is disposed inside the dishwasher, and a sump 16 is disposed below the tub to collect the washing water and to filter the foreign material.

In detail, the tub 18 has a plurality of shelves 11 and 12 separated up and down, and nozzles 14 and 15 for spraying washing water toward the respective shelves 11 and 12. 24) is formed. In addition, the rail 13 supporting the movement of the tub 18 extends in the front-rear direction from the side surface of the tub 18. In addition, a filter 17 is disposed below the tub 18 so that foreign matter is filtered out of the washing water passing through the filter 17.

In addition, one side of the tub 18 is provided with a washing water passage 19 for supplying washing water to the upper nozzle 14.

In addition, the door 2 is coupled to the case 1 by a hinge (not shown) at the lower end of the door 2, and can be rotated up and down about the hinge by a user's operation. In addition, an exhaust fan 9 may be formed at a predetermined position of the door 2 to allow the internal air of the tub 18 to be forcibly discharged to the outside by the exhaust fan 9. In addition, a detergent inlet 10 through which a predetermined amount of detergent is introduced is formed on the inner surface of the Singapore door 2 so that a predetermined amount of detergent is supplied into the detergent inlet 10 when the dishwasher is operated.

3 is a cross-sectional view taken along line II ′ of FIG. 1.

Referring to FIG. 3, the dishwasher according to the present invention is connected to the outside of the tub 18 and the dishwasher so that water is supplied to the inside of the tub 18, and used for washing to contaminate the dish. A drain pipe passage 23 through which the washed water is drained, a steam generator 20 placed below the tub 18 to generate steam, and steam generated by the steam generator 20 is connected to the tub 18. A steam supply passage 21 is provided which serves as a connection pipe that is supplied to the inside.

In addition, the water supply pipe line 22 is branched, and in order to control the amount of water supplied through the branched water supply line 22, the tub side valve 40 and the steam side valve 41 for opening and closing the water supply line 22. ) Is formed. The amount of water supplied to the tub side valve 40 to the tub side is controlled, and the amount of water supplied to the steam generator 20 side is controlled.

In addition, the steam generator 20 is a tube heating type steam generator, and since the water passing through the water supply line 22 is directly heated and supplied to the inside of the tub, whenever the steam supply is required, Steam can be supplied quickly.

The operation of the dishwasher according to the present invention as will be described briefly.

When the dishes are to be washed, first, the door 2 is opened, the dishes are stored in the shelves 11 and 12, the shelves are put in place, and the door 2 is closed. Of course, before closing the door (2) it can be put a certain amount of detergent or rinse in the detergent inlet (10).

Then, when the user operates the desired state of dish washing by operating the function operation 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.

On the other hand, 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 nozzles 14, 15, 24 is the shelf (11, 12) After washing the dishes placed therein, they fall downward and flow to the sump (16). A predetermined pump such as an impeller is placed inside the sump 16 to pressurize the washing water to be supplied to the nozzles 14, 15 and 24 again. In this way, while the washing water is circulated from the sump 16 to the nozzles 14, 15 and 24, food waste is filtered out by the filter 17 to prevent excessive washing or clogging of the nozzle. .

As described above, in any state in which the operation of the dishwasher is in progress, the steam generated by the steam generator 20 is further supplied to the tub through the steam supply passage 21. Therefore, it is expected to improve the operation reliability and efficiency of the dishwasher further obtained by the high temperature and high humidity characteristics of the steam.

In addition, since an injection nozzle (see 27 in FIG. 4) is connected to an end of the steam supply passage 21, steam may be blown away from the inside of the tub 18. By being injected by (27), it is possible to quickly spread the steam inside the tub (18).

4 is an enlarged view of a portion “A” of FIG. 3, in the state in which a part of the tub 18 protrudes into the inside of the tub 18, the steam supply passage 21 is condensed so that the end thereof is the injection nozzle 27. Can be seen.

Since the end of the steam supply passage 21 is concentric, the steam flowing through the steam supply passage 21 flows to the distant space inside the tub 18 through the injection nozzle 21, It may flow as shown by the arrow. Looking at the arrow, the steam injected from the injection nozzle 27 is first expanded by the injection pressure into the upper space of the tub (18). After that, after the steam cools down, it turns to the other side and descends downwards. Since the flow direction of steam is determined in the tub 18 as described above, the internal space of the tub 18 can be supplied with steam quickly and entirely.

5 is a cross-sectional view of the dishwasher illustrating another embodiment of the present invention.

Referring to FIG. 5, the other parts are the same as those in the original embodiment, except that the steam supply passage 21 differs in the extending direction of the steam supply passage 21 and the supply position of the injection nozzle.

Hereinafter, the description will be given focusing on the characteristic points of the present embodiment. First, the steam supply passage 21 is guided upward of the tub 18, and the nozzles 25 and 26 for discharging steam downward from the inner upper surface of the tub 18 are provided in at least two places. .

As a plurality of nozzles 25 and 26 are provided in this way, the internal space of the tub 18 can be quickly supplied with steam as a whole. Furthermore, since the steam injected downward from the nozzles 25 and 26 can be rapidly flowed to the lower space of the tub 18 by the injection pressure, the steam is also rapidly formed in the lower space of the tub 18. You can go crazy. In the case where a plurality of nozzles 25 and 26 are provided in this way, there may be no separate injection nozzles 25 and 26 for allowing the steam to be widely spread inside the tub 18.

Hereinafter, a control method of the dish washing machine according to the present invention will be described in detail centering on the operation of the steam generator 20.

First, as already described, steam refers to the change in the state of the gas boiled water has a high temperature and high humidity. Therefore, by the characteristics of such a steam, it is possible to obtain the advantage that can increase the washing efficiency of the dishwasher. In particular, in the present invention, the food waste hardened by steam is called, and the property is easily utilized in the tableware. In view of the above considerations, it can be expected that the washing efficiency of the tableware is improved by the steam supplied into the tub.

Hereinafter, with reference to the separate drawings will be described in detail a control method of the dish washer according to the present invention.

6 is a flowchart illustrating a control method of the dish washing machine according to the present invention.

Referring to FIG. 6, when an operation of the dishwasher is started after the dishes are stored in the dishwasher, an initial draining step in which water previously contained in the dishwasher is drained is performed (S1). Then, after the initial drainage is made, steam is supplied to the inside of the tub 18 (S2). The steam supplying step (S2) is performed by a process in which steam generated in the steam generator 20 is supplied into the tub 18 through the steam supply passage 21. In addition, the time and amount of steam supplied in the steam supplying step S2 may vary depending on the amount of the dishes accommodated in the tub 18 and the cleaning state of the dishes. For example, it may be desirable to allow steam to be supplied for a longer time in the case where rice is stuck to the tableware and does not fall well.

After the steam supply step S2 is performed once, after the food waste is called, the washing water is sprayed toward the dishware (S3). At this time, even if the washing water is sprayed at a low pressure, since food waste is called by steam, food waste does not interfere with washing.

After the one time steam supplying step S2 and the washing water spraying step S3 are finished, the washing water spraying step S3 and the steam supplying step S2 are repeated according to the course state of dish washing and / or the user's choice. It is determined whether or not to be performed (S4). Thus, in the case where the repeated number of times and the set number of times of the washing water spraying step S3 and the steam supplying step S2 are not the same, the above-described steps are repeatedly performed.

In this way, the longer the number of times of washing water injection is increased by the preliminary washing, the longer the time for which food waste is called, the smaller the amount of food residue remaining in the food. Furthermore, since the food waste that is fixed to the tableware is called during the steam supplying step S2, the food waste can be more completely removed from the tableware.

As such, by repeatedly performing the washing water spraying step (S3) and the steam supplying step (S2) repeatedly, since food waste can be removed from the dish more reliably, the washing efficiency of the dish can be improved. There will be.

Preferably, in the alternating steps of the washing water spraying step (S3) and the steam supplying step (S2), at least one time to be carried out in the state where the new material is supplied, so as to completely remove the oil stains, etc. on the tableware .

Preferably, at least finally, a rinsing stroke in which no detergent is added for rinsing is performed in the washing water spraying step (S3) and the steam supplying step (S2), so that the detergent residues are prevented from remaining in the dishes.

Thereafter, after the spraying of the washing water is completed by matching the set number of times with the repeated number of times, the drying stroke S5 to which cold air or hot air is supplied is further proceeded.

7 is a cross-sectional view of the steam generator according to the present invention.

Referring to FIG. 7, since the steam generator 20 according to the present invention is operated in a pipe heating manner and is directly heated while water flows inside the water pipe, steam can be supplied quickly if desired by the user. have.

The steam generator 20 is a water supply pipe 204 connected to the pipeline flowing through the water supply pipe 22 and the heater 201 adjacent to the water pipe 204 to transfer heat to the water pipe 204. ) 202, and a heat conduction portion 203 to allow rapid heat transfer between the heaters 201, 202 and the water pipe 204.

In detail, the heater 201 and 202 may use a sheath heater that generates heat by applying external power, and the amount of water supplied to the water pipe 204 may be adjusted by the steam valve 41. have.

When a situation where steam is required by the configuration as described above occurs, when water is supplied by opening the valve 41 while simultaneously supplying power to the heaters 201 and 202, steam is generated at about the same time, There is an advantage that can be supplied to the inside of the tub.

In addition, the amount of heat delivered to the tub can be controlled by the power applied to the heaters 201 and 202, and the amount of steam generated can be directly controlled by the opening amount and opening time of the valve 41. . Therefore, the steam control of the dishwasher by the user has an advantage that can be performed more directly.

With such a tube heating type steam generator, when a large amount of heat is required, direct control is possible by lengthening the length of the steam generator or increasing the amount of power applied to the heater. When a large amount of steam is required, the supply amount of steam can be easily controlled by adjusting the opening degree of the steam valve 41.

By the tube heating type steam generator 20, if the system is desired, the steam can be supplied quickly, and the total calorific value and the amount of steam supply can be directly controlled.

The steam supplied from the dishwasher according to the present invention may vary according to the capacity of the dishware or the type of the article to be accommodated, and may be adjusted according to a user's selection. For example, if a large amount of dishes, a large amount of steam will be easily supplied.

As will be described, the dishwasher according to the present invention is a dishwasher, since the step of spraying the washing water after the steam is supplied and the food waste is called is continuously performed, that is, the steam supply and the washing water spray are alternately performed, It is possible to obtain the advantage that the cleaning efficiency of the more improved. The improvement of the washing efficiency is also performed by the food dregs being easily removed from the dish by the food dregs being called by the supply of steam, and also by the sterilization of germs in the dish germs by the high temperature steam. Can be.

In other words, food waste is called by the supply of steam, so that the cleanliness of the tableware can be physically increased. Furthermore, since the alternating performance steps of the washing water and the steam are performed a plurality of times, the washing efficiency of the dish is increased as repeatedly performed.

On the other hand, as another embodiment of the present invention, the steam supply step (S2) and washing water injection step (S3) shown in Figure 5 may be performed at the same time. In other words, the washing water may be sprayed at the same time as the steam supply operation is performed. As such, when the operation of the dishwasher is performed, the time required for the entire administration of the dishwasher may be reduced.

According to the present invention, since the physical, chemical and biological washing can be performed satisfactorily with respect to the dishes, the use efficiency of the dishwasher can be obtained.

In addition, there is an advantage that the washing operation of the tableware is shortened by the soaking operation quickly, and the removal of the food waste adhered to the tableware is completely performed. In addition, since hot steam may be injected in a plurality of strokes, the sterilization effect of the tableware may be increased.

In particular, when the steam heating system of the tube heating method is applied, since the steam can be quickly supplied whenever the steam is required during the operation of the dishwasher, the overall stroke time of the dishwasher can be reduced.

Claims (7)

A tub in which tableware is accommodated; A door configured to open and close the open surface of the tub; In order to supply steam to the inside of the tub, the steam generator is continuously heated in the steam generator is heated to generate steam; And And a steam supply passage connecting the steam generator and the inside of the tub. The method of claim 1, The steam generator is a water pipe through which water flows; A heater provided at an adjacent position of the water pipe; And And a heat conduction unit operating as a medium in which heat is transferred by connecting the heater and the water pipe. The method of claim 2, The heat conducting unit dishwasher made of aluminum. The method of claim 2, The heat conductive part is a dish washer that is molded and manufactured in a state in which the water pipe and the heater are inserted. The method of claim 1, And a steam-side valve for controlling the amount of water flowing into the water pipe. The method of claim 1, The amount of heat of the steam is dishwasher controlled by the power applied amount of the heater provided in plurality. Tub that is accommodated therein; A steam generator provided outside the tub and directly flowing flowing water to generate steam; A valve controlling a water supply amount of water introduced into the steam generator; And Steam supply structure of the dishwasher including a steam supply passage for communicating the steam generator and the inner space of the tub.

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