KR20090070858A - Dish washer having sterilizing apparatus and control method thereof - Google Patents

Abstract

A dish washer with a sterilizer and a control method thereof are provided to maintain clean sanitary conditions of the dish washer by sterilizing accepted tableware and the inside of the dish washer with washing water circulating the inside of the dish washer and having the sterilizing power. A dish washer with a sterilizer comprises a main body(100) and a sterilizer(200). The main body comprises a washing chamber(110), a machine chamber(120) and a washing tank(130). The washing chamber washes the accepted tableware with the emitted water. In the machine chamber, parts which operate to supply the water of the high pressure to the washing chamber are installed. The washing tank is located at the lower part of the washing chamber and collects the water used in the washing chamber. The washing tank circulates the gathered water with the operation of a circulating pump(121) to the washing chamber. The sterilizer is mounted inside the washing tank. The sterilizer sterilizes the water gathered in the washing tank. The sterilizer comprises a metal plate, a metal plate holder, and a metal plate case. A plurality of metal plates are formed and are mounted on the inside of the washing tank to be parallel at fixed intervals. The connection terminal for power supply is formed in one side of the metal plate. The metal plate electrolyzes the water gathered in the washing tank. The metal plate holder includes a plurality of slots to maintain that a plurality of metal plates is separated at certain intervals. A part of the metal plate case is open to be contacted with water inside the washing tank.

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, by having the washing water circulating in the dishwasher has a sterilizing power, by sterilizing the stored dishes and sterilizing the inside of the dishwasher, thereby maintaining a clean sanitary state of the dishwasher. It relates to a dishwasher having a sterilization device 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 performs a washing operation and the washing room 3, which is a space for washing dishes stored therein It consists of a main body 1 including a drive unit 5 is built in a number of parts, and the front door 7 is provided with a door 7 that can be opened and closed.

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.

On the other hand, 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.

In other words, a variety of bacteria, including a large amount of Escherichia coli, which is harmful to the human body, grow vigorously. 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, by having the washing water circulating in the dishwasher to have a sterilizing power, by sterilizing the stored dishes and sterilizing the inside of the dishwasher, it is possible to maintain a clean sanitary state of the dishwasher It is an object of the present invention to provide a dishwasher having a sterilization device and a control method thereof.

The dishwasher equipped with a sterilizer according to the present invention includes a washing room for washing dishes stored with sprayed water, a machine room installed with components operating to supply high pressure water to the washing room, and the washing room located below the washing room. A main body having a washing tank for collecting water used in the chamber and circulating the collected water by the operation of the circulation pump to the washing chamber; And a sterilization apparatus mounted inside the washing tank and operating so that water collected in the washing tank has sterilizing power when power is applied.

Preferably, the sterilization apparatus is mounted parallel to the inner surface of the washing tank spaced apart from each other by a predetermined distance, the connection terminal for applying power is formed on one side to electrolyze the water collected in the washing tank as the power is applied It is characterized by including a plurality of metal plates.

More preferably, the plurality of metal plate holder is formed with a plurality of slots to maintain a state in which the plurality of metal plates are spaced apart from each other by a predetermined distance; And a metal plate case in which a part of the metal plate is open to contact the water in the washing tank, and a plurality of through holes are formed to expose the connection terminal of the metal plate to accommodate the metal plate and the metal plate holder. It is done.

In addition, an insertion groove is formed in the bottom surface of the cleaning tank so that the metal plate case is inserted, and a through hole is formed in the bottom surface of the insertion groove so that the connection terminal is inserted.

In addition, it is characterized in that the filter is mounted on the outer side of the insertion groove so that foreign matter does not flow into the sterilization apparatus.

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 the self-cleaning function is selected; d) performing a cleaning mode or a general cleaning mode according to the determination result of step c; And e) watering the washing tank to rinse the dishes.

Preferably, in the cleaning mode of step d, the power is applied to the connection terminal of the metal plate, and after a predetermined time elapses, the sterilizing water generated in the washing tank is sprayed into the washing chamber to wash the dishes. It is done.

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.

Preferably, after performing the normal cleaning mode, it is determined whether the self-cleaning function is selected, and if the self-cleaning function is selected, the cleaning mode is performed.

The present invention can sterilize the dishes by washing the dishes stored in the washing room with the sterilization water generated through the sterilizer.

In addition, according to the present invention, since the sterilizing water generated through the sterilizer circulates inside the dishwasher, the sanitary state of the dishwasher can be kept clean by sterilizing the inside of the dishwasher.

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

2 is a view schematically showing the configuration of a dish washer having a sterilizer according to the present invention, Figure 3 is an exploded perspective view showing the sterilizer of Figure 2, Figure 4 is a sterilizer of Figure 2 is mounted to the washing tank State is a perspective view from the top, Figure 5 is a side view showing a state in which the sterilization apparatus of Figure 2 mounted on the washing tank.

As shown in the drawings, the sterilization apparatus according to the present invention includes a washing chamber 110 and a machine chamber 120, and a washing tank 130 is installed between the washing chamber 110 and the machine chamber 120. And a sterilization apparatus 200 installed inside the washing tank 130.

The washing chamber 110 is positioned above the main body 100, and washes the stored dishes using the washing water sprayed from the spray arm 111 installed therein.

The machine room 120 is provided with a plurality of components (circulation pump 121, drain pump 122, etc.) that operate to spray high-pressure water to the dishes stored in the washing chamber 110.

The washing tank 130 is installed between the lower portion of the washing chamber 110, precisely, between the washing chamber 110 and the machine chamber 120. The washing tank 130 is supplied from the external water supply 140 by the opening and closing operation of the water supply valve 101 to receive the filtered water through the filter 150, the water thus supplied is a circulation pump 121 By the operation of the spray arm 111 is injected into the washing chamber 110 to wash the dishes.

In addition, the washing tank 130 collects the water sprayed to wash the dishes in the upper washing chamber (110). After the cleaning is completed, the water collected in the washing tank 130 is circulated by the circulation pump 121 and flows back into the washing chamber 110 to wash the dishes, or the drain pipe 123 by the operation of the drain pump 122. Through the dishwasher is drained out.

Here, the sterilization apparatus 200 is installed on the bottom side of the washing tank 130 in which the washing water is collected, and when power is applied from the outside, the washing water collected in the washing tank 130 is operated to have sterilizing power.

Specifically, the sterilization apparatus 200 is composed of a plurality of metal plates 210, the plurality of metal plates 210 are mounted on the inner surface of the washing tank 130 and spaced apart from each other in parallel, one side for power supply The connection terminal 211 is formed to electrolyze the water in contact with the metal plate 210 as the power is applied.

Looking briefly at the principle that the water electrolyzed by the sterilizer according to the present invention has a sterilizing power, tap water introduced from the outside contains chlorine which is usually used for disinfection, and the electrolyzed water is a hydrogen atom and an oxygen atom. When ionized, the ionized oxygen atom and chlorine are combined to produce oxidized chlorine monoxide (ClO-).

The chlorine monoxide generated as described above has a property of easily adsorbing other components, and thus, the water collected in the washing tank 130 has sterilizing power, so that the water is sprayed into the washing chamber 110 to be stored in the washing chamber 110. Various harmful bacteria can be adsorbed and sterilized and washed.

Therefore, the washing water collected in the washing tank 130 through the sterilizing apparatus 200 according to the present invention has a sterilizing power.

Looking at the sterilization apparatus 200 in more detail, the plurality of metal plates 210 are spaced apart from each other by a predetermined distance in parallel to the negative electrode plate and the positive electrode plate alternately, one side protrudes so that the power is applied to one side In combination with the metal plate holder 220 and the metal plate case 230 is mounted on the inner surface of the washing tank (130).

Here, a plurality of slots (not shown) are formed in the metal plate holder 220 to maintain a plurality of metal plates 210 spaced apart from each other, and the plurality of metal plates 210 are inserted one by one. maintain.

The metal plate case 230 is an element accommodating the plurality of metal plates 210 inserted into the metal plate holder 220, and the upper and left and right sides of the metal plate 210 are opened so that the metal plate 210 comes into contact with the washing water in the washing tank 130. A number of through holes (not shown) corresponding to the number of the connection terminals 211 are formed at the lower portion such that the upper case 230a and the connection terminal 211 of the metal plate 210 are covered below the 210. It includes a lower case 230b is covered on the lower portion of the metal plate (210).

On the other hand, the bottom surface of the washing tank 130 is formed with the insertion groove 131 is inserted into the metal plate case 230 that accommodates the plurality of metal plates 210 therein. In addition, a through hole 131a is drilled in the bottom surface of the insertion groove 131 so that the connection terminal 211 of the metal plate 210 is exposed to the outside of the cleaning tank 130.

On the other hand, although not shown in the drawings, the sterilization apparatus 200 can be accommodated outside the sterilization apparatus 200 so that foreign matters contained in the water collected in the washing tank 130 do not flow into the sterilization apparatus 200. It is preferable to provide a filter 240 having a shape.

Since the dishwasher according to the present invention by the above-described sterilizer 200 can sterilize the washing water in the washing tank 130, by having the washing water circulating in the dishwasher to have a sterilizing power, such as bacteria in the dishwasher It can sterilize to keep hygiene of dishwasher clean.

6 is a block diagram schematically showing the configuration of a control system of a dishwasher having a sterilizer according to the present invention, and FIG. 7 is a flowchart illustrating a control method of the dishwasher having a 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 7.

First, referring to the control system of the dishwasher equipped with a sterilizer according to the present invention, the input unit 102 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 103 for detecting the operating time of the device 200, sterilization apparatus 200 for generating sterilizing water, water supply valve 101 is operated to supply water from the external water supply 140 to the washing tank 130 , Circulating pump 121 for circulating the water collected in the washing tank 130 to the washing chamber 110, a drain pump 122 that operates to drain the water collected in the washing tank 130 to the outside, the washing chamber 110 The sterilizer 200, the water supply valve 101, the heater 112, the circulation pump 121, and the drainage according to a signal detected from the heater 112 and the input unit 102 and the timer 103 to dry the inside It includes a microcomputer 300 for controlling the operation of the pump (122).

Looking at the control method of the dishwasher of the above-described configuration, first to turn on the dishwasher (on) through the input unit 102 to wash the dishes stored in the washing room (110) (S100).

When the dishwasher is turned on, the microcomputer 300 outputs a signal to open the water supply valve 101 connected to the external water supply 140 so that the water supplied from the outside is supplied to the washing tank 130 (S200). .

Thereafter, the microcomputer 300 provided in the dishwasher determines whether the user selects the self-cleaning function through the input unit 102 (S300).

Here, when the self-cleaning function is selected, while the washing mode of the dish washing machine is performed, the microcomputer 300 allows power to be applied to the connection terminal 211 of the metal plate 210 so that the water inside the washing tank 130 is electrolyzed. (S410).

Thereafter, the microcomputer 300 determines whether a preset time (approximately 7 minutes) has elapsed after the metal plate 210 is operated through the timer 103 (S420), and when the set time has elapsed, the inside of the washing tank 130 The sterilized water generated by electrolysis at is supplied to the washing chamber (110).

Then, the sterilizing water supplied to the washing chamber 110 is sterilized to wash the dishes stored by being sprayed into the washing chamber 110 through the spray arm 111 (S430).

Thereafter, the microcomputer 300 discharges the washing water collected in the washing tank 130 to the outside by allowing the drain pump 122 to operate, and the water supply valve 101 is opened again so that clean water is supplied to the washing tank 130. Afterwards, the circulation pump 121 is operated to rinse the dishes stored in the washing chamber 110 finally (S600).

By performing such a process, the sterilized water generated by the sterilization apparatus 200 is the washing tank 130 → the circulation pump 121 → the injection arm 111 → washing chamber 110 → washing tank 130 → drainage pump 122 As it is discharged to the outside, the inside of the dishwasher is sterilized. Therefore, the hygiene of the dishwasher can be kept clean.

Subsequently, the heater 112 installed in the washing room 110 is operated to dry the dishes having been washed, thereby completing the dish washing (S700).

On the other hand, when the self-cleaning function is not selected in 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 chamber 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 once again determines whether the self-cleaning function is selected (S530), and if the self-cleaning function is not selected, the water supply valve 101 is opened to open the washing tank 130. The water is supplied to the water (S540), and the final rinsing operation is performed (S600).

Thereafter, the microcomputer 300 operates the heater 112 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 self-cleaning function is selected in step S530, the microcomputer 300 performs the above-described cleaning mode (S410 ~ S430) to circulate the sterilizing water in the dishwasher, and finally installed in the washing room 110 The heater 112 is operated to dry the dishes having been washed, thereby completing the dish washing (S700).

As described above, when the cleaning mode is performed, the dishes are washed with the sterilizing water generated by the sterilizing apparatus, so as not only to sterilize the bacteria contained in the stored dishes, but also by sterilizing the inside of the dishwasher, Hygiene can be kept clean.

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.

As described above, the present invention can sterilize the dishes by washing the dishes stored in the washing chamber with the sterilization water generated through the sterilizer.

In addition, according to the present invention, since the sterilizing water generated through the sterilizer circulates inside the dishwasher, the sanitary state of the dishwasher can be kept clean by sterilizing the inside of the dishwasher.

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

2 is a view schematically showing the configuration of a dish washer having a sterilizer according to the present invention;

3 is an exploded perspective view showing a sterilizing apparatus of FIG.

4 is a perspective view showing the state in which the sterilization apparatus of FIG.

Figure 5 is a side view showing a state in which the sterilization apparatus of Figure 2 mounted on the washing tank,

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

7 is a flowchart illustrating 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: water supply valve

102: input unit 103: timer

110: washing chamber 111: injection arm

112: heater 120: machine room

121: circulation pump 122: drainage pump

123: drain pipe 130: washing chamber

131: insertion groove 131a: through hole

140: water supply source 150: filter

200: sterilizer 210: metal plate

211: connection terminal 220: metal plate holder

230: metal plate case 240: filter

300: micom

Claims (10)

A washing room for washing dishes stored with water to be sprayed, a machine room equipped with components operating to supply high pressure water to the washing room, and located at a lower part of the washing room to collect water used in the washing room and to operate a circulation pump. A main body having a washing tank for circulating water collected by the washing chamber; And And a sterilizing device mounted inside the washing tank and operating to have sterilizing power of the water collected in the washing tank when power is applied. The method of claim 1, The sterilization device, It is mounted on the inner surface of the washing tank spaced apart from each other in parallel, the connection terminal for applying power is formed on one side, characterized in that it comprises a plurality of metal plates for electrolyzing the water collected in the washing tank as the power is applied Dishwasher with a sterilizer. 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 washing 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 with a sterilizer. The method of claim 3, wherein An insertion groove is formed in the bottom surface of the washing tank so that the metal plate case is inserted, and a through hole is formed in the bottom surface of the insertion groove so that the connection terminal is inserted. The method of claim 3, wherein Dishwasher having a sterilization device, characterized in that the filter is mounted to the outside of the insertion groove so that foreign matter does not flow into the sterilization device. As a control method of a dishwasher equipped with a sterilizer, a) warming up the dishwasher; b) watering the washing bath; c) determining whether the self-cleaning function is selected; d) performing a cleaning mode or a general cleaning mode according to the determination result of step c; And e) control method of the dishwasher having a sterilization device comprising the step of rinsing the tableware by supplying water to the washing tank. The method of claim 6, The cleaning mode of step d, Control method of a dishwasher having a sterilization device characterized in that the power is applied to the connection terminal of the metal plate, and after a predetermined time has elapsed by disinfecting the sterilizing water generated in the washing tank into the washing chamber to wash the dishes. . The method of claim 6, And after step d, drying the dishes stored in the washing room. The method of claim 6, 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 9, After performing the normal cleaning mode, it is determined whether the self-cleaning function is selected, and if the self-cleaning function is selected, performing the cleaning mode, characterized in that the control method of the dishwasher equipped with a sterilizer.

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