KR20060124278A - Dish washer and controlling method of the same - Google Patents

Abstract

A dish washer and a control method of the same are provided to smoothly remove the scraps and increase the washing effect of dishes by containing the steam generator for interlocking the discharge stroke through discharge pipe lines and steam supply strokes for supplying the steam into the inside of the tub. A dish washer comprises a tub(18) whose one surface is opened to receive dishes; a door(2) for opening and closing the opened surface of the tub; water supply and discharge pipe lines(22,23) communicating the inner and outer parts of the tub; a connection pipe line for communicating the discharge side of the steam generator and the inside of the tub; and a steam generator(20) for generating the steam by interlocking the discharge stroke through the discharge pipe line and the steam supply stroke of supplying the steam into the inside of the tub. The discharge stroke is more than one of the initial, preliminary and main water, and rinsing water discharge strokes.

Description

Dish washer and controlling method of 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.

Figure 4 is a flow chart illustrating a control method of the dishwasher 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

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 method of controlling a dishwasher and a dishwasher in which high temperature steam is supplied to an 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, the operation of the dishwasher is divided into pre-washing and main washing, and food waste is called in the preliminary washing section, so that 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 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, 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.

The present invention has been proposed in order to solve the above problems, it is an object of the present invention to propose a control method of the dishwasher and dishwasher to improve the washing efficiency of the tableware by being able to smoothly remove the food debris adhered to the dishwasher It is done.

In addition, it is an object of the present invention to propose a control method of the dishwasher and the dishwasher by performing the soaking operation quickly, so that the dishwashing administration is shortened by that.

In addition, an object of the present invention is to propose a control method of the dishwasher and the dishwasher in which the stroke time of the dishwasher is shortened by suggesting an appropriate time for spraying steam.

Dishwasher according to the present invention for achieving the above object is a dish is accommodated and one side open tub; A door configured to open and close the open surface of the tub; A water supply passage and a drainage passage communicating the inside and the outside of the tub; A connection pipe connecting the discharge side of the steam generator to the inside of the tub; And a steam generator for supplying steam to the inside of the tub by interlocking with a drainage stroke through the drain pipe and a steam supplying stroke through which steam is supplied into the tub.

In another aspect, a control method of a dish washing machine according to the present invention is characterized in that a stroke in which the washing water used for washing the dishes is drained and at least a predetermined time overlaps each other so that steam is supplied to the inside 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, and the user's convenience can be 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 appearance and opening at the front, a door 2 for sealing the 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.

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.

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 gas boiled with water, which is characterized by 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 residue hardened by the steam is called to use a property that can be easily dropped from the tableware.

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

Referring to FIG. 4, when the dishwasher is started after the dishes are stored in the dishwasher, the initial drainage step of draining the water previously contained in the dishwasher proceeds to the inside of the tub. Steam is supplied (S1).

The steam supplying step is maintained for a predetermined time, and preferably may be supplied for a time during which the food waste adhered to the tableware is sufficiently called. Since the steam will continue to be exhausted inside the tub 18, it is preferably supplied continuously for at least a certain time. In addition, the time for which the steam supplying step is maintained may be preset or automatically determined. For example, when the dish washing is performed after a long time, the setting time is maintained by the user's setting so that the food is kept long. Allow the residue to be called out sufficiently. In order to sufficiently perform the soaking function, even if the initial draining step ends before the steam supplying step, steam may be continuously supplied for a predetermined time.

After the food residue is sufficiently called by the steam supplying step, the washing water is sprayed toward the tableware by the nozzles 14, 25 and 24 after the fresh water is newly supplied. The washing water sprayed by the nozzle can easily wash the dishes because the food waste is already called by steam despite being sprayed at a certain low pressure (S2). In addition, when a strong call is required, the steam supplying step may be continuously performed even if preliminary washing is in progress. However, it is clear that the supply of steam starts in conjunction with the initial drainage stage, which is the initial administration of dish washing.

After the food waste is washed to some extent by the pre-cleaning stroke, the step of supplying steam and draining the washing water used for the pre-washing is performed (S3). The steam supplied at this stage, along with the ability to make food waste more powerful, allows for more sterilization.

In addition, at this time, since detergent is mixed in the washing water, the chemical residues such as oil stains on the tableware are to be washed (S4). In this way, the washing performed in the detergent state can be referred to as main washing.

After the main washing is completed, a step of newly supplying steam with the stroke of draining the washing water used for main washing is performed (S5). The steam supplied in this step is mainly performed to allow the dishes to be sterilized while the food waste is almost washed.

After the fresh washing water is newly supplied, the process of rinsing the dish is performed (S6). The rinsing stroke can thus be performed multiple times in the state of the dishware. In this way, when the rinsing stroke is performed a plurality of times, each time the wash water used in the previous rinsing stroke is drained, the steam is newly supplied so that time for supplying steam can be saved.

After the rinsing cycle is finished, the cold or hot air is forcibly applied, thereby the process of drying the tableware (S7).

After the drying administration is completed, the process of storing the tableware proceeds.

As will be described, in the control method of the dishwasher according to the present invention, before the process of washing by spraying the washing water on the dish is performed, the steam is supplied and the food is called. Therefore, even if the washing water is sprayed at low pressure, the food residues can be sufficiently washed, and the food waste can be washed even if the washing water is sprayed at low pressure, thereby reducing the consumption of the pump pressurizing the washing water.

In addition, since food waste is washed after it is called, the time required for the spraying of the washing water is shortened, although the time required for the injection of the washing water is shortened, the overall washing time of the dishwasher can be reduced. have. Furthermore, since the steam is supplied to the inside of the tub at the same time as the drainage stroke, a plurality of strokes occur at the same time, and since the stroke time for steam supply is not required separately, the operation time of the dishwasher is further reduced. have.

On the other hand, as another embodiment of the present invention, in the original embodiment, it is described that steam is always supplied when the drain stroke occurs, but is not limited thereto, and the initial drain stroke, the drain stroke of the pre-wash water, the drain stroke of the main wash water. In addition, steam may be supplied in at least one stroke selected from the drainage stroke of the rinsing wash water. By supplying steam in one or more strokes selected as described above, steam is supplied with a small number of times of low pollution to reduce the power consumption of the dishwasher.

According to the present invention, since food residues strongly adhered to the dishwasher can be smoothly removed, the washing efficiency of the dishes is improved.

In addition, because the soaking is performed quickly has the advantage that the dishwashing administration is shortened by that much, the consumption of the pump is reduced, the energy consumption can be reduced.

Claims (6)

The tub is accommodated and one side is opened; A door configured to open and close the open surface of the tub; A water supply passage and a drainage passage communicating the inside and the outside of the tub; A connection pipe connecting the discharge side of the steam generator to the inside of the tub; And And a steam generator for supplying steam to the inside of the tub by interlocking the drainage stroke through the drain pipe and the steam supply stroke through which the steam is supplied into the tub. The method of claim 1, The drainage stroke associated with the steam supply stroke is at least one stroke selected from an initial drainage stroke, a drainage stroke of the preliminary wash water, a drainage stroke of the main wash water, and a drainage stroke of the rinsing wash water. 10. A method of controlling a dishwasher in which a stroke in which washing water used for washing dishes is drained and a stroke in which steam is supplied to the inside of the tub by overlapping each other at least for a predetermined time. The method of claim 3, wherein Control method of the dishwasher in which the steam supply stroke is performed at the same time as the drainage stroke of the washing water. The method of claim 3, wherein The drainage stroke which is linked to the steam supply stroke is at least one stroke selected from an initial drainage stroke, a drainage stroke of the preliminary wash water, a drainage stroke of the main wash water, and a drainage stroke of the rinsing wash water. The method of claim 3, wherein The steam supply stroke is a control method of the dishwasher continued even after the drain stroke.

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