KR20090070855A - Dish washer having sterilizing apparatus and control method thereof - Google Patents

Abstract

A dish washer equipped with a sterilizer and a control method thereof are provided to remove all kinds of noxious bacteria included in accepted tableware and obtain clean sanitary conditions of the washed tableware by converting tap water into sterilized water having sterilizing power through electrolyzation and washing tableware with the sterilized water. A dish washer equipped with a sterilizer comprises a main body(100) and a sterilizer(200). The main body comprises a cleaning chamber(110) and a machine chamber(120). The cleaning chamber washes the accepted tableware with the emitted water. In the machine chamber, components which operate to supply the water of the high pressure to the cleaning chamber are installed. The sterilizer is mounted inside the machine chamber. The sterilizer operates to make the water supplied to the cleaning chamber to have sterilizing power as the power source is applied. The sterilizer comprises a tank, a metal plate, a metal plate holder, and a metal plate case. In the tank, an inlet port is formed at one side and an outlet port is formed at the other side. The metal plate is mounted between the inlet port and the outlet port at regular intervals to be parallel. A connection terminal for the power supply is formed in one side of the metal plate. A plurality of slots is formed on the metal plate holder.

Description

Dishwasher with sterilizer and its control method {Dish washer having sterilizing apparatus and control method

The present invention relates to a dishwasher, and more particularly, to electrolyzing tap water to sterilization water having sterilization power, and to wash the dishes using the sterilization water, thereby removing various harmful bacteria contained in the stored dishes. The present invention relates to a dish washer having a sterilization device capable of ensuring a clean sanitary state of the washed dishes and a control method thereof.

In general, the dishwasher is to make the washing of the dishes more hygienic and efficient, and the washing water contained in the lower tank of the washer is rotatably mounted at the outlet of the supply pipe when the washing water is transferred through the supply pipe by a predetermined pump. The washing water is sprayed at a high pressure through the spray nozzle of the injector to wash the dishes placed in the dish holder.

1 is a view schematically showing the internal structure of a dishwasher according to the prior art, as shown, the conventional dishwasher is a washing room (3) which is a space for washing dishes stored therein, and the washing operation The main body 1 includes a driving unit 5 in which a plurality of parts for carrying out are embedded, and a door 7 that can be opened and closed is installed on the front surface of the main body 1.

In addition, a lower portion of the washing chamber 3 is provided with a washing tank 8 that is sprayed into the washing chamber 3 and collects the washing water after washing the dishes.

Specifically, the upper rack 12 and the lower rack 14 for storing dishes are installed in the washing chamber 3, and the upper injection arms 22 are disposed below the upper rack 12 and the lower rack 14, respectively. ) And the lower injection arm 24 is installed to wash the dishes by spraying the washing water upwards.

The driving unit 5 includes a water supply pump (not shown) that operates to supply water from an external water supply source, and a circulation pump that operates so that water supplied to the washing tank 8 by the water supply pump flows into the washing chamber 3 ( (Not shown), and a drain pump 9 or the like which is operated to discharge the water collected by the washing tank 8 to the outside after being used in the washing chamber 3 is installed.

In addition, the connection pipe between the washing tank (8) and each spray arm (22, 24) so that the water introduced into the washing tank (8) by the operation of the water supply pump flows into the upper spray arm (22) and lower spray arm (24). 322 and 324 are installed.

In addition, the filter member 30 for filtering foreign matter is installed at the inlet of the drain pipe 10 connected to the drain pump 9 side.

On the other hand, the user of the dishwasher does not wash the dishes immediately after ingesting most of the food to be washed by using the dishwasher until a certain amount of tableware stacked. In the meantime, food debris on the tableware is decaying to some extent.

That is, a variety of bacteria, including a large amount of Escherichia coli, which is harmful to the human body, multiply actively. In addition, small amounts of harmful Legionella spp. (Legionellapneumophilia) may also be present in the dishwasher.

The presence of these bacteria not only causes contamination of the circulating water circulated in the dishwasher, but also worsens the water environment by the contaminated water drained. In addition, the propagation of various bacteria can also threaten the health of family members.

In this situation, a sterilization system capable of sterilizing these bacteria as well as inhibiting the propagation of various bacteria including E. coli is constantly being demanded in the dishwasher field.

The present invention has been invented to solve the above problems, and provides a dishwasher and a method of controlling the same having a sterilization apparatus capable of sterilizing and washing various bacteria including E. coli contained in the tableware after use to ensure a clean sanitary state. Its purpose is to.

Dishwasher equipped with a sterilizer according to the present invention, the main body having a washing chamber for washing dishes stored with water to be sprayed, and a machine room is installed to operate the parts to supply high pressure water to the washing chamber; And a sterilization device mounted inside the machine room and operating so that water supplied to the washing room has a sterilizing power when power is applied.

Here, the sterilization apparatus, the inlet is formed on one side, the outlet port is formed on the other side; And a plurality of metal plates spaced apart from each other by a predetermined distance between the inlets and the outlets of the tank, and connected to each other to form a connection terminal for power application to electrolyze the water flowing from the inlet to the outlet as power is applied. It characterized by including.

Preferably, the plurality of metal plate holder is formed with a plurality of slots to maintain the plurality of metal plates spaced apart from each other at a predetermined interval; And a metal plate case in which a part of the metal plate is opened to contact the water in the tank, and a plurality of through holes are formed to expose the connection terminal of the metal plate, and accommodates the metal plate and the metal plate holder. It is done.

In addition, the tank has a mounting hole for inserting the metal plate case is formed on the bottom surface, the metal plate case is characterized in that it is inserted into the mounting hole so that the metal plate parallel to the flow direction of the water flow.

In addition, the metal plate case accommodating the metal plate and the metal plate holder is characterized in that the pair is formed adjacent to each of the inlet and outlet of the tank.

In addition, the inlet is connected to the supply pipe connected to the external water supply, the outlet is characterized in that connected to the water supply pipe connected to the washing chamber.

In addition, the tank has an air discharge hole formed on one side of the upper, characterized in that for discharging the gas generated during the electrolysis of the sterilization apparatus to the outside.

A control method of a dishwasher having a sterilizer according to the present invention includes the steps of: a) turning on the dishwasher; b) watering the washing bath; c) determining whether a sterilization function is selected; And d) performing a sterilization washing mode or a general washing mode according to the determination result of step c.

Preferably, the sterilization washing mode of step d, the tap water is introduced into the tank of the sterilization apparatus, the power is applied to the connection terminal of the metal plate, and after a certain time passes the sterilized water generated in the tank The water is supplied to the washing tank, and the sterilized water supplied to the washing tank is sprayed into the washing chamber to wash dishes.

In addition, after step d, characterized in that it further comprises the step of drying the dishes stored in the washing room.

In addition, the general washing mode of step d, characterized in that to wash the dishes by spraying the water supplied to the washing tank into the washing chamber.

More preferably, after performing the normal washing mode, it is determined whether the sterilization function is selected, if the sterilization function is selected, the sterilization washing mode is performed, and if the sterilization function is not selected, the normal washing mode is again performed. It is characterized by performing once.

The present invention converts the tap water into sterilizing water having sterilization power, and washes the dishes using the sterilizing water, thereby removing various harmful bacteria contained in the stored dishes, thereby ensuring a clean sanitary state of the washed dishes. It can work.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a view showing the configuration of the dishwasher with a sterilizer according to the invention, Figure 3 is a plan view showing the sterilization apparatus of Figure 2, Figure 4 is a cross-sectional view showing the sterilization apparatus of FIG. .

As shown in the drawings, the dishwasher equipped with a sterilizer according to the present invention is to wash the dishes stored in the water stored in the rack (not shown) installed in the rack and sprayed through the injection arm (not shown) The body 110 having the chamber 110 and the machine chamber 120 having a plurality of parts installed therein so that the high pressure water is supplied to the washing chamber 110 and the water sprayed into the washing chamber 110 have sterilizing power. And a sterilizer 200 to operate.

Specifically, the sterilizer 200 is installed in the interior of the machine room 120, exactly the lower portion of the washing room 110 to operate as the power is applied, the tank 210 forming the appearance of the sterilizer 200 And a plurality of metal plates 220 for electrolyzing the water introduced into the tank 210.

The tank 210 has an inlet 211 formed at one side to allow water to be introduced from the outside, and an outlet 212 is formed at the other side so that the introduced water is supplied to the washing chamber 110.

Here, the inlet 211 of the tank 210 is connected to a supply pipe 101 connected to a water supply source such as an external faucet to receive water from the outside, and the outlet 121 of the tank 210 is the washing chamber 110. Is connected to the water supply pipe 102 is connected to the water supply to the washing chamber (110).

At this time, the water supplied through the water supply pipe 102 is supplied to the washing tank 130 formed below the washing chamber 110, flows to the injection arm installed in the washing chamber 110 is injected into the washing chamber 110. .

In addition, a solenoid valve 104 is installed at one side of the supply pipe 102 to allow the tap water from the outside to selectively flow into the tank 210.

The plurality of metal plates 220 are mounted between the inlet 211 and the outlet 212 of the tank 210 to electrolyze the water introduced into the inlet 211 so as to have a sterilizing power. 212), the water supplied to the washing chamber 110 to sterilize and wash the dishes stored in the washing chamber 110.

The principle that the water electrolyzed by the sterilizer according to the present invention has a sterilizing power will be briefly described.

Tap water introduced from the outside contains chlorine, which is usually used for disinfection, and the electrolyzed water is ionized with hydrogen and oxygen atoms, and the ionized oxygen atoms and chlorine combine to form oxidized chlorine monoxide (Mixed Oxidant). To form ClO-).

The chlorine monoxide thus produced has a property of easily adsorbing other components, and thus, by adsorbing various harmful bacteria of the dishes stored in the washing chamber 110, sterilization washing can be performed.

Therefore, the tap water introduced from the outside through the sterilizing apparatus 200 according to the present invention has a sterilizing power.

Figure 5 is an exploded view showing the configuration of the sterilization apparatus of Figure 2, Figure 6 is a combined view of Figure 5, Figure 7 is an exploded perspective view showing a bonding state of the metal plate, Figure 8 is a metal plate is coupled to the tank It is a figure which shows the state.

As shown in the drawing, the plurality of metal plates 220 are spaced apart from each other by a predetermined distance in parallel to the negative electrode plate and the positive electrode plate are alternately arranged, one side protrudes the connection terminal 221 so that power is applied, the metal plate holder ( 230 and the metal plate case 240 is mounted to the tank 210.

Specifically, the metal plate holder 230 is formed with a plurality of slots (not shown) so that the plurality of metal plates 220 are spaced apart from each other by a predetermined interval, and the plurality of metal plates 220 are inserted one by one. Is maintained.

The metal plate case 240 is an element for accommodating the plurality of metal plates 220 inserted into the metal plate holder 230. The left and right sides of the metal plate case 240 are opened to allow the metal plate 220 to come into contact with tap water flowing in the tank 210. The number of through holes 241 corresponding to the number of the connection terminals 221 is formed in the lower portion so that the upper case 240a and the connection terminal 221 of the metal plate 220 are covered on the upper part of the lower portion 220. It comprises a lower case 240b that is covered on the lower portion of the 220.

On the other hand, a mounting hole 213 is formed in the bottom of the tank 210 is inserted into the metal plate case 240 accommodates a plurality of metal plates 220 therein.

At this time, the metal plate case 240 is inserted into the mounting hole 213 so that the plurality of metal plates 220 accommodated therein are arranged in a position parallel to the flow direction of the tap water flowing in the tank 210.

Therefore, tap water flowing in the tank 210 may minimize flow resistance due to the collision with the metal plate 220 installed through the mounting hole 213.

In addition, the metal plate case 240 accommodating the plurality of metal plates 220 inserted into the metal plate holder 230 is installed in pairs adjacent to the inlet 211 and the outlet 212 of the tank 210, respectively. By tapping the tap water flowing inside the tank 210 twice, the tap water may be converted into sterilizing water having the highest sterilizing power.

On the other hand, in order to discharge the gas, such as hydrogen generated during the electrolysis operation of the sterilizer 200 to the outside it is preferable to form an air discharge hole 214 on the upper side of the tank 210.

Since the dishwasher according to the present invention by the above-described sterilizer 200 converts tap water into sterilized water and supplies it into the washing chamber 110, the sterilizing power of the dishwasher may be further improved.

9 is a block diagram schematically illustrating a control system configuration of a dish washer having a sterilizer according to the present invention, and FIG. 10 is a flowchart illustrating a control method of the dish washer having the sterilizer according to the present invention.

Hereinafter, a method of controlling a dish washing machine equipped with a sterilizer according to the present invention will be described with reference to FIGS. 2 to 10.

First, referring to the control system of the dishwasher equipped with a sterilizer according to the present invention, the input unit 101 is provided on the front of the main body 100 of the dishwasher and provided with a plurality of buttons to select various functions of the dishwasher, sterilization. Timer 102 for detecting the operating time of the device 200, the sterilization device 200 for generating sterilizing water, the water supply valve 105 which is operated to supply water to the washing tank 130, the sterilization device 200 In accordance with the signals detected from the solenoid valve 104, the heater 111 and the input unit 101, the timer 102 to dry the interior of the washing chamber 110, the water flows into the tank 210 ( 200, a solenoid valve 104, a heater 111, and a microcomputer 300 for controlling the operation of the water supply valve 105.

Looking at the control method of the dishwasher of the above-described configuration, first to turn on the dishwasher (on) through the input unit 101 to wash the dishes stored in the washing room (110) (S100).

When the dishwasher is turned on, the microcomputer 300 outputs a signal such that the water supply valve 105 connected to the external water source is opened, such that the water supplied from the outside is supplied to the washing tank 130 (S200).

Then, the microcomputer 300 provided in the dishwasher determines whether the user has selected the sterilization function through the input unit 101 (S300).

Here, when the sterilization function is selected, while the sterilization washing mode of the dishwasher is performed, the microcomputer 300 allows the solenoid valve 104 installed in the supply pipe 101 connected to the inlet 211 of the tank 210 to open the tank. (210) Tap water is introduced into (S410). Then, power is applied to the metal plate 220 installed in the tank 210 to electrolyze the tap water into which the metal plate 220 is introduced (S420).

Thereafter, the microcomputer 300 determines whether the preset time (approximately 7 minutes) has elapsed after the metal plate 220 is operated through the timer 102 (S430), and when the set time has elapsed, the tank 210. The sterilized water generated by electrolysis inside is supplied to the washing tank 130 (S440).

Then, the sterilizing water supplied to the washing tank 130 is sterilized to wash the dishes stored by being sprayed into the washing chamber 110 through the injection arm installed in the washing chamber (S450).

As described above, when the dishes are washed using the sterilizing water generated by the sterilizing apparatus 200, since the dishes stored in the washing chamber 110 may be sterilized by the sterilizing power of the sterilizing water, a separate rinsing operation may be performed. Dish washing can be done without the need to perform.

Thereafter, the microcomputer 300 operates the heater 111 installed in the washing room 110 to dry the dishes having been cleaned, thereby completing the dish washing (S700).

On the other hand, if the sterilization function is not selected in the step S300 while the general washing mode of the dishwasher is performed, the water collected in the washing tank 130 is sprayed to the washing room 110 to wash the dishes (S510). Then, the water is injected again into the washing chamber 110 to rinse the dishes (S520).

When the rinsing operation is completed, the microcomputer 300 again determines whether the sterilization function is selected (S600), and if the sterilization function is not selected, the water supply valve 105 is opened to open the water in the washing tank 130. The water is supplied (S530) and the final rinsing operation is performed (S540).

Thereafter, the microcomputer 300 operates the heater 111 installed in the washing room 110 to dry the dishes having been cleaned, thereby completing the dish washing (S700).

On the other hand, when the sterilization function is selected in step S600, the microcomputer 300 performs the sterilization washing mode (S410 ~ S450) described above to sterilize and wash the dishes, and finally the heater 111 installed inside the washing room 110 To operate, by drying the dish is completed, the dish is finished washing (S700).

As described above, when the sterilization washing mode is performed, the dish can be effectively washed in a short time by performing only one washing operation with the sterilizing water generated by the sterilizing device, and when the sterilization washing is not necessary, the normal washing mode is performed. You can wash dishes.

On the other hand, if you select the normal washing mode, and again select the sterilization washing mode during the washing, since the sterilization washing proceeds after performing one washing and rinsing operation, it is possible to wash to the cleanest dishes.

In addition, by using such sterilized water, as well as washing the dishes, it is possible to wash the fruit or vegetables, etc. can be utilized in various ways.

The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the protection scope of the present invention should be interpreted by the following claims. In addition, one of ordinary skill in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention, all technical ideas within the scope equivalent to the present invention of the present invention It should be interpreted as being included in the scope of rights.

As described above, the present invention converts the tap water into sterilizing water having a sterilizing power, and washes the dishes using the sterilizing water, thereby removing various harmful bacteria contained in the stored dishes. Clean hygiene can be ensured.

1 is a view schematically showing the internal structure of a dish washer according to the prior art,

2 is a view showing the configuration of a dish washer provided with a sterilizer according to the present invention,

3 is a plan view showing the sterilization apparatus of FIG.

4 is a cross-sectional view showing the sterilization apparatus of FIG.

5 is an exploded view showing the configuration of the sterilization apparatus of FIG.

6 is a coupling diagram of FIG. 5,

7 is an exploded perspective view showing a bonding state of a metal plate,

8 is a view showing a state where the metal plate is coupled to the tank,

9 is a block diagram schematically showing the configuration of a control system of a dish washer having a sterilizer according to the present invention;

10 is a flowchart showing a control method of the dishwasher having a sterilizer according to the present invention.

-Explanation of symbols for the main parts of the drawings-

100: main body 101: supply pipe

102: water supply pipe 104: solenoid valve

105: water supply valve 110: washing chamber

111: heater 120: machine room

130: washing tank 200: sterilizer

210: tank 211: inlet

212: outlet 213: mounting hole

214: air outlet hole 220: metal plate

221: connection terminal 230: metal plate holder

240: metal plate case 241: through hole

300: micom

Claims (12)

A main body having a washing room for washing dishes stored with water to be sprayed, and a machine room installed with components operative to supply high pressure water to the washing room; And And a sterilizing device mounted inside the machine room and operating so that water supplied to the washing room has a sterilizing power when power is applied. The method of claim 1, The sterilization device, An inlet is formed on one side, the tank is formed on the other side; And Between the inlet and outlet of the tank spaced apart from each other by a predetermined distance and installed in parallel, a power supply connection terminal is formed on one side includes a plurality of metal plates for electrolyzing the water flowing from the inlet to the outlet as power is applied Dishwasher provided with a sterilizer, characterized in that. The method of claim 2, A metal plate holder in which a plurality of slots are formed to maintain the plurality of metal plates spaced apart from each other by a predetermined distance; And The metal plate is partially opened to contact the water in the tank, a plurality of through-holes are formed to expose the connection terminal of the metal plate, further comprising a metal plate case for receiving the metal plate and the metal plate holder. Dishwasher equipped with sterilizer. The method of claim 3, wherein The tank is provided with a mounting hole in which the metal plate case is inserted into the bottom surface, the metal plate case is inserted into the mounting hole so that the metal plate parallel to the flow direction of the water flow in the tank Fully equipped dishwasher. The method of claim 2, The metal plate case accommodating the metal plate and the metal plate holder is a dishwasher having a sterilization device, characterized in that the pair is formed adjacent to each of the inlet and outlet of the tank. The method of claim 2, The inlet is connected to the supply pipe is connected to the external water source, the outlet is dishwasher having a sterilization device, characterized in that connected to the water supply pipe connected to the washing chamber. The method of claim 2, The tank is provided with an air discharge hole on one side, the dishwasher having a sterilization device, characterized in that for discharging the gas generated during the electrolysis of the sterilization device to the outside. As a control method of a dishwasher equipped with a sterilizer, a) warming up the dishwasher; b) watering the washing bath; c) determining whether a sterilization function is selected; And d) a control method of the dishwasher having a sterilization device, including performing a sterilization washing mode or a general washing mode according to the determination result of step c. The method of claim 8, The sterilization washing mode of step d, Tap water is introduced into the tank of the sterilization apparatus, power is applied to the connection terminal of the metal plate, and after a predetermined time, the sterilizing water generated inside the tank is supplied to the washing tank, and the sterilizing water supplied to the washing tank. The control method of the dishwasher with a sterilization device, characterized in that to sterilize the dishes by spraying the inside of the washing room. The method of claim 8, And after step d, drying the dishes stored in the washing room. The method of claim 8, The general cleaning mode of step d, Control method of a dishwasher having a sterilization device, characterized in that for washing the dishes by spraying the water supplied to the washing tank into the washing room. The method of claim 11, After performing the normal washing mode, it is determined whether a sterilization function is selected, if the sterilization function is selected, the sterilization washing mode is performed, and if the sterilization function is not selected, the normal washing mode is once again performed. Control method of the dishwasher equipped with a sterilizer.

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