KR100859035B1 - Dish washer and controlling method of the same - Google Patents

Abstract

Dishwasher according to the invention tub is accommodated and open one side; A door configured to open and close the open surface of the tub; A steam generator for generating steam; A connection pipe connecting the discharge side of the steam generator to the inside of the tub; And a steam detecting unit detecting a steam state supplied to the inside of the tub.

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, since the amount of steam accommodated in the tub can be accurately determined, there is an advantage that each stroke of the dishwasher can be controlled relatively accurately.

Dishwasher, Steam

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.

5 is a view for explaining another embodiment of 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 25: light emitting unit

26: light receiver 27: home

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 interior 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 to accurately sense the amount of steam supplied to the inside of the dishwasher so that each stroke of the dishwasher is accurately controlled.

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 steam generator for generating steam; A connection pipe connecting the discharge side of the steam generator to the inside of the tub; And it includes a steam detecting unit for detecting the amount of steam supplied to the inside of the tub.

Another aspect of the control method of the dishwasher according to the present invention comprises the steps of supplying steam to the inside of the tub; Sensing the concentration of the steam supplied; And supplying steam when the detected concentration of steam exceeds a set value.

According to the present invention, the washing efficiency of the dish is improved, and the dish washing machine can be controlled more accurately, so that 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. A functional operation unit 7 is provided for performing a predetermined operation, and a display unit 8 for displaying the operation state of the dishwasher is provided.

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.

In addition, the tub 18 is provided with a predetermined steam sensing unit for sensing the amount of steam supplied into the tub, for example, the light emitting unit 25 formed on any one side of the tub 18, It is the light-receiving part 26 formed in the other side of the said tub 18. According to the configuration described above, it is possible to determine the concentration of steam accommodated in the tub 18 according to the degree of the light emitted from the light emitting portion 25 is received by the light receiving portion 26. This is because the more steam, the light emitted from the light emitting unit 25 will be detected by the light receiving unit 26 with a smaller amount.

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 light receiving portion 26 is shown on the side of the tub 18.

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 particular, the amount or state of the steam supplied to the inside of the tub 18 is sensed by the steam detecting unit consisting of the light emitting unit 25 and the light receiving unit 26 can be used to control the steam generator 20. have.

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, an initial draining step of draining the water previously contained in the dishwasher is performed (S10).

After the initial drainage is terminated, the steam generator 20 is operated to supply steam into the tub 18 (S21). The washing water is supplied into the tub 18 together with the steam (S24), and the amount of the washing water is continuously performed until the set value (S25).

Subsequently, it is determined whether the supply amount of steam reaches a set value (S22), where the determination of the supply amount of steam may be determined by the steam detecting unit. In the steam supply amount determining step (S22), when it is determined that the steam has reached the set value, and it is determined that sufficient washing water is supplied, the subsequent steps continue.

In detail, after the washing water is sprayed to allow the dishes to be washed (S23), the rinsing stroke is performed (S30), and after the rinsing is completed, the drying stroke is performed (S40).

As will be described, the control method of the dishwasher according to the present invention is further performed with a washing stroke sprayed by washing water to wash the dish, the steam is supplied to the food waste or sterilization. And by controlling the supply amount of steam accurately, it is possible to eliminate unnecessary waste of power.

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.

5 is a view for explaining another embodiment of the present invention.

Referring to FIG. 5, the present embodiment is the same as the original embodiment in other parts, except that a groove 27 recessed in one side of the tub is provided, and the inside of the groove functions as a steam sensing unit. In order to perform the light emitting unit 28 and the light receiving unit 29 corresponding to each other is provided.

Unlike the original embodiment, since the light emitting part and the light receiving part are provided together in the inner space of the narrow groove, the progress of light connecting the light emitting part 25 and the light receiving part 26 proposed in the original embodiment is provided. Even if foreign objects such as utensils are placed on the path, there is an advantage that the progress of light is not blocked.

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, since the soaking is performed quickly, the dish washing stroke is shortened, and the consumption of the pump is reduced, thereby reducing the energy consumption.

In addition, since the amount of steam accommodated in the tub can be accurately determined, there is an advantage that each stroke of the dishwasher can be controlled relatively accurately.

Claims (5)

The tub is accommodated and one side is opened; A door configured to open and close the open surface of the tub; A steam generator for generating steam; A connection pipe connecting the discharge side of the steam generator to the inside of the tub; And And a steam detector configured to detect an amount of steam supplied to the inside of the tub. The method of claim 1, The steam detection unit, Light emitting unit for emitting light; And A light receiving unit which receives the light emitted from the light emitting unit and determines a steam concentration of the tub according to the intensity of the received light; And the light emitting unit and the light receiving unit face each other inside the tub. The method of claim 1, The steam detection unit, A groove formed on one side of the tub; And The dishwasher includes a light emitting unit and a light receiving unit in which the groove is placed The method of claim 1, The steam detection unit emits light; And And a light receiving unit which receives the light emitted from the light emitting unit and determines a steam concentration of the tub according to the intensity of the light received. Supplying steam to the inside of the tub; Sensing the concentration of the steam supplied; And The control method of the dishwasher to stop the supply of steam when the concentration of the detected steam exceeds a set value.

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