KR20060124259A - Dishwasher and Dishwasher Control Method - 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; And a connecting pipe for communicating the discharge side of the steam generator with the inside of the tub; The steam generator is supplied with steam to the inside of the tub in the previous step and / or after the step of the main cleaning is sprayed with the washing water mixed with detergent.

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 sterilization efficiency is improved, the cleanliness of the tableware may be improved.

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 for controlling a dishwasher and a dishwasher in which a high temperature steam (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, 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 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 dish washing is so long.

Furthermore, since the dishwasher is repeatedly used, food wastes are frequently fixed inside the tub, and when the food wastes are stuck by bacteria, the smell is bad, and even after the dishes are washed, There is a problem such as bacteria remaining in the dish along with the residue.

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. Furthermore, it is an object of the present invention to propose a control method of the dishwasher and the dishwasher in which the dishwashing operation is performed quickly, so that the dishwashing administration is shortened as much as the user's convenience is further improved.

It is also an object of the present invention to propose a control method of the dishwasher and the dishwasher in which the bacteria which may remain on the surface of the tableware are completely killed, thereby further improving the cleanliness of the tableware and the hygiene of the home.

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; And a connecting pipe for communicating the discharge side of the steam generator with the inside of the tub; The steam generator supplies steam to the inside of the tub in a previous step and / or a later step of the main cleaning is sprayed washing water mixed with detergent.

According to another aspect of the present invention, a method of controlling a dishwasher includes steam supplying food waste and dishware to the inside of the tub at a stage before and / or after the washing in which washing is performed in a state where detergent is supplied. Allow sterilization of to be performed.

According to another aspect of the present invention, there is provided a method of controlling a dishwasher, including: a bulim steam supplying step in which food waste deposited on the tableware is called by steam supplied to a previous step of main washing; Washing water in which detergent is mixed and washing dishes; And a sterilization steam supplying step in which the tableware is sterilized by steam supplied after the washing step.

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, the sterilization administration of the tableware may be additionally performed, thereby increasing the reliability of the dish washing.

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.

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 placed in the proper positions, 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, and has high temperature and humidity characteristics. 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 the steam is called and can be easily removed from the dish, and the bacteria are sterilized by the steam in a high temperature state.

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

Referring to FIG. 4, when an operation of the dishwasher is started after the dishes are stored in the dishwasher, an initial drainage step in which water previously contained in the dishwasher is drained is performed (S1). After the initial drainage, the washing water is supplied and the washing water is sprayed by the nozzles 14, 25 and 24 toward the dishware.

The food waste of relatively large size is washed by the process of spraying the washing water (S2). As such, the process in which food waste is washed by washing water in a state where detergent is not supplied is sometimes referred to as pre-washing.

After the preliminary washing step S2 is completed, steam is supplied into the tub 18 (S3). The steam supply step (S3) is maintained for a predetermined time, preferably may be supplied for a time when the food residue is fixed to the tableware is sufficiently called. And, since the steam will continue to be exhausted inside the tub 18, it is preferable to continue to be supplied at least for 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 for a long time. You can make sure that food residues are called out enough. This step is called food waste, so it might be called a boil steam supply step.

After the food waste is called to some extent by performing the soak steam supplying step (S3), the main washing is performed by washing water in which detergent is mixed in a state in which detergent is supplied (S4). The main washing may be repeatedly performed a plurality of times depending on the operation state of the dishwasher.

In addition, although the washing water sprayed by the nozzle in the main washing step is sprayed to a certain low pressure, since the food waste is already called by steam, the dish can be easily washed.

After this washing step is performed, the drainage stroke of the washing water proceeds (S5), and steam is again supplied (S6). At this time, the high-temperature steam supplied to the tableware completely kills germs and the like on the surface of the tableware so that the sterilization operation is performed.

Steam supplied in the steam supply step (S6) may vary depending on the capacity of the tableware or the type of goods accommodated, and can be adjusted according to the user's selection. For example, it may be possible to set a long time for an item for which sterilization can be performed only if it is supplied for a long time such as a dishcloth or a cutting board. This step (S6) will be named sterilization steam supply step because the sterilization is performed by the high temperature steam.

After the sterilization steam supply step (S6) is performed, the clean washing water is newly supplied and then sprayed to rinse the dishes (S7). The rinsing stroke may be performed a plurality of times according to the state of the dishware.

After the rinsing cycle is finished, the cold or hot air is forcibly applied, thereby driving the tableware to dry (S8).

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.

In addition, since the bacteria which may be on the surface of the tableware are killed after the main cleaning is finished, the cleanliness of the tableware is further improved. In particular, since sterilization is performed while steam is supplied in the entire stage of the rinsing cycle, the sterilized germs may have an advantage of being discharged to the outside together with the washing water, and since steam is supplied once again, the soaking efficiency of food waste is further enhanced. You may also benefit from further improvements.

On the other hand, as another embodiment, according to the specific operating conditions, by the selective steam supply step (S3) and sterilization steam supply step (S6) to be selectively performed, to suppress the increase in power consumption due to the excessive supply of steam You can expect the effect to work.

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 sterilization efficiency is improved, the cleanliness of the tableware may be obtained.

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; And A connection pipe for communicating the discharge side of the steam generator with the inside of the tub; The steam generator is a dishwasher for supplying steam to the inside of the tub in the previous step and / or after the step of the main cleaning, the washing water is mixed with detergent. The control method of the dishwasher to supply steam to the inside of the tub in the pre-step and / or the post-main stage of the washing in which the cleaning is performed in the state in which detergent is supplied. The method of claim 2, The subsequent step of the main washing is a control method of the dish washer before the rinsing. The method of claim 2, The amount of steam supplied to the steam supply step is controlled method of the dishwasher. Bolimim steam supply step of the food residue on the tableware is called by the steam supplied to the previous step of the main washing; Washing water in which detergent is mixed and washing dishes; And And a sterilization steam supplying step in which the dish is sterilized by steam supplied after the washing step.

Images