KR20000009795A - Dish washer and controlling method thereof - Google Patents

Dish washer and controlling method thereof Download PDF

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Publication number
KR20000009795A
KR20000009795A KR1019980030430A KR19980030430A KR20000009795A KR 20000009795 A KR20000009795 A KR 20000009795A KR 1019980030430 A KR1019980030430 A KR 1019980030430A KR 19980030430 A KR19980030430 A KR 19980030430A KR 20000009795 A KR20000009795 A KR 20000009795A
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South Korea
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water
washing
water level
washing tank
dishwasher
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KR1019980030430A
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Korean (ko)
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KR100267931B1 (en
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김신용
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윤종용
삼성전자 주식회사
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/421—Safety arrangements for preventing water damage
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4244—Water-level measuring or regulating arrangements

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

PURPOSE: A dish washer and a controlling method thereof are provided to prevent the washing water form being flowed out when stopping washing. CONSTITUTION: The dish washer is composed of:a water supply pump(15) to supply the washing water into the bottom of a washing tub(3) via a spraying nozzle(7); a water reserve case(17) installed on the bottom of the washing tub to collect the washing water sprayed into each basket(6, 8) by the spraying nozzle; a water drain pump(20) installed on the bottom of the water reserve case to drain the washing water; an air chamber installed on one side of the washing tub close to the water reserve case and connected to a water level sensor(13) which is a pressure switch.; Herein, the washing water from outside is flowed into the water reserve case when opening a water supply valve. If the water level in the water reserve case is risen, the washing water is flowed into the air chamber and the water level is risen. Accordingly, the pressure is delivered to the water level sensor connected to the air chamber, and the water level is sensed.

Description

식기세척기 및 그 제어방법Dishwasher and Control Method

본 발명은 식기세척기 및 그 제어방법에 관한 것으로서, 보다 상세하게는, 세척작업의 중지시, 세척조내의 수위를 감지하여 세척수를 외부로 배출시킴으로써, 오버플로우를 방지할 수 있도록 한 식기세척기 및 그 제어방법에 관한 것이다.The present invention relates to a dishwasher and a control method thereof, and more particularly, a dishwasher and a control thereof to prevent overflow by detecting a water level in a washing tank and discharging the washing water to the outside when the washing operation is stopped. It is about a method.

식기세척기 본체는, 도 1에 도시된 바와 같이, 세척조를 형성하는 외부케이싱(2)을 가지며, 외부케이싱(2)의 전방에는 하단의 도시않은 힌지를 중심으로 상하 선회하여, 세척조(3)내에 세척물을 전방으로 인출 및 철회 가능하도록 한 도어(4)가 개폐가능하도록 설치되어 있다. 세척조(3)내에는, 세척될 식기를 수용하는 상부바스켓(6) 및 하부바스켓(8)이 상하방향으로 각각 배치되어 있으며, 각 바스켓(6,8)은 세척조(3)의 양측벽에 마련된 로울러에 의하여 전후 슬라이딩가능하도록 설치되어 있다. 특히, 하부바스켓(8)은, 도어(4)의 개방시, 세척조(3)의 양측벽 및 도어(4)에 마련된 도시않은 안내레일을 따라 외부까지 출입가능하다. 여기서, 각 바스켓(6,8)의 하측에는, 세척수를 각 바스켓(6,8)을 향해 상향 분사시키는 분사노즐(7)이 각각 설치되어 있다.As shown in FIG. 1, the dishwasher main body has an outer casing 2 which forms a washing tub, and in front of the outer casing 2, the dishwasher main body is pivoted up and down about a hinge, not shown, at the lower end thereof, so that the dish washing machine 3 is disposed in the washing tub 3. The door 4 which is able to draw out and withdraw a washing | cleaning material forward is provided so that opening and closing is possible. In the washing tank 3, an upper basket 6 and a lower basket 8, which accommodate the dishes to be washed, are arranged in the vertical direction, respectively, and each of the baskets 6, 8 is provided on both side walls of the washing tank 3, respectively. It is installed to be able to slide back and forth by a roller. In particular, the lower basket 8 is accessible to the outside along the guide rail (not shown) provided on both side walls of the washing tank 3 and the door 4 when the door 4 is opened. Here, below the baskets 6 and 8, injection nozzles 7 for spraying the washing water upward toward the baskets 6 and 8 are respectively provided.

이러한 세척조(3)내의 저부에는 분사노즐(7)로 세척수를 공급하는 급수펌프(15)와, 분사노즐(7)에 의해 각 바스켓(6,8)으로 분사되었던 세척수가 집수되는 저수케이스(17)가 각각 설치되어 있고, 저수케이스(17)에 인접한 영역에는 압력스위치인 수위감지센서에 연결된 도시않은 에어챔버가 설치되어 있다. 저수케이스(17)내에는 도시않은 급수밸브의 개방시 외부로부터의 세척수가 유입수용되게 되며, 저수케이스(17)내의 수위가 상승되면 에어챔버내로도 세척수가 유입되어 수위가 상승하게 된다. 이에 따라, 에어챔버에 연결된 수위감지센서로 압력이 전달되어 수위가 감지되게 된다.The bottom of the washing tank (3) is a water supply pump (15) for supplying the washing water to the injection nozzle (7), and a storage case (17) for collecting the washing water sprayed to the basket (6, 8) by the injection nozzle (7) Are respectively installed, and an air chamber (not shown) connected to the water level sensor, which is a pressure switch, is provided in an area adjacent to the storage case 17. When the water supply valve (not shown) is opened in the water storage case 17, the washing water from the outside is introduced and received. When the water level in the water storage case 17 is increased, the water is also introduced into the air chamber to raise the water level. Accordingly, the pressure is transmitted to the water level sensor connected to the air chamber to detect the water level.

이러한 식기세척기의 세척조(3)내에 식기를 수납한 다음, 세척작업에 돌입하면, 급수밸브가 개방되어 세척조(3)내로 세척수가 공급되고, 저수케이스(17)내로 세척수가 집수되게 된다. 저수케이스(17)내의 세척수의 수위가 상승하여 수위감지센서에 감지된 수위가 적정수준에 도달하면, 급수밸브가 차단되고 급수가 중지된다. 그런 다음, 급수펌프(15)가 동작하여 분사노즐(7)로 세척수를 공급하여 식기를 세척하게 된다.After storing the dishes in the washing tank 3 of such a dishwasher and entering the washing operation, the water supply valve is opened to supply the washing water to the washing tank 3, and the washing water is collected into the storage case 17. When the level of the washing water in the storage case 17 rises and the level detected by the level sensor reaches an appropriate level, the water supply valve is blocked and the water supply is stopped. Then, the water supply pump 15 is operated to supply the washing water to the injection nozzle 7 to wash the dishes.

이러한 종래의 식기세척기의 세척작업중, 여러 가지 요인에 의해 세척작업이 중지되게 된다. 예를 들면, 일시적으로 정전이 되거나, 어린이의 장난에 의해 오프신호가 입력되면, 세척작업이 중지된다. 그리고, 기기의 오동작으로 인해 급수밸브가 개방되어 세척조(3)내로 계속적으로 급수가 이루어져 수위감지센서로부터의 이상수위가 감지되는 경우, 또는 급수밸브의 개방후 일정 시간이 경과했음에도 불구하고 수위감지센서로부터 수위가 감지되지 아니하는 경우에는 오버플로우로 판정하여 세척작업을 중지시키게 된다.During the washing operation of the conventional dishwasher, the washing operation is stopped by various factors. For example, when the power is temporarily cut off or an off signal is input due to mischief of a child, the washing operation is stopped. When the water level valve is opened due to malfunction of the equipment and water is continuously supplied into the washing tank 3 to detect abnormal water level from the water level sensor, or even after a certain time has elapsed since the water supply valve is opened. If the water level is not detected from the water, it is determined as an overflow and the cleaning operation is stopped.

그런데, 이러한 요인들로 인해 세척작업을 중지시켰음에도 불구하고, 기기의 오동작으로 인해 급수가 계속적으로 이루어지는 경우에는 오버플로우가 발생되어 식기세척기 외부로 세척수가 유출되게 된다. 또한, 세척작업 중지시 도어(4)를 개방하게 되면, 세척조(3)내의 세척수가 외부로 유출되게 된다는 문제점이 있다.However, even though the washing operation is stopped due to these factors, when water is continuously supplied due to malfunction of the device, an overflow occurs and the washing water flows out of the dishwasher. In addition, when the door 4 is opened when the washing operation is stopped, there is a problem that the washing water in the washing tank 3 is leaked to the outside.

따라서 본 발명의 목적은, 세척작업 중지시에 세척수가 외부로 유출되는 것을 방지할 수 있는 식기세척기 및 그 제어방법을 제공하는 것이다.Accordingly, an object of the present invention is to provide a dish washer and a control method thereof, which can prevent the washing water from leaking out when the washing operation is stopped.

도 1은 식기세척기의 단면도,1 is a cross-sectional view of the dishwasher,

도 2는 본 발명에 따른 식기세척기의 제어블럭도,2 is a control block diagram of a dish washer according to the present invention;

도 3은 도 2의 식기세척기의 제어흐름도이다.3 is a control flowchart of the dish washing machine of FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

3 : 세척조 10 : 제어부3: washing tank 10: control unit

13 : 수위감지센서 15 : 급수펌프13: water level sensor 15: feed water pump

17 : 저수케이스 19 : 급수밸브17: water storage case 19: water supply valve

20 : 배수펌프20: drain pump

상기 목적은, 본 발명에 따라, 세척조와, 상기 세척조내로 외부로부터의 세척수를 공급하는 급수밸브와, 상기 세척조내로 세척수를 분사하는 분사노즐과, 상기 분사노즐로 세척수를 공급하는 급수펌프와, 상기 세척조내에 세척수를 외부로 배출하는 배수펌프를 갖는 식기세척기에 있어서, 세척작업의 중지시, 상기 배수펌프를 일정 시간동안 구동시키는 제어부를 갖는 것을 특징으로 하는 식기세척기에 의해 달성된다.According to the present invention, there is provided a washing tank, a water supply valve for supplying the washing water from the outside into the washing tank, an injection nozzle for spraying the washing water into the washing tank, a water supply pump for supplying the washing water to the spray nozzle, and A dishwasher having a drain pump for discharging the washing water to the outside in a washing tank is provided by a dishwasher having a control unit which drives the drain pump for a predetermined time when the washing operation is stopped.

여기서, 상기 급수밸브에 의한 세척수의 급수시, 수위를 감지하는 수위감지센서를 더 포함하며, 상기 제어부는 세척작업의 중지시, 상기 수위감지센서로부터 감지된 상기 세척조의 수위가 일정 이상일 때 상기 배수펌프를 구동시키는 것이 바람직하다.Here, the water supply of the washing water by the water supply valve, and further comprising a water level sensor for detecting the water level, wherein the control unit stops the washing operation, when the water level of the washing tank detected from the water level detection sensor is a predetermined or more It is desirable to drive the pump.

그리고, 상기 제어부는, 상기 급수밸브의 작동후 일정시간 경과후 상기 세척조의 수위가 정상수위가 아닐 경우, 상기 배수펌프를 구동시키는 것이 바람직하다.And, if the water level of the washing tank is not the normal level after a predetermined time after the operation of the water supply valve, it is preferable to drive the drain pump.

한편, 상기 목적은, 본 발명의 다른 분야에 따르면, 세척조와, 상기 세척조내로 외부로부터의 세척수를 공급하는 급수밸브와, 상기 세척조내로 세척수를 분사하는 분사노즐과, 상기 분사노즐로 세척수를 공급하는 급수펌프와, 상기 세척조내에 세척수를 외부로 배출하는 배수펌프와, 상기 세척조내의 수위를 감지하는 수위감지센서를 갖는 식기세척기의 제어방법에 있어서, 전원차단을 감지하는 단계와, 전원차단시, 상기 세척조내의 수위를 확인하는 단계와, 상기 세척조내의 수위가 일정 이상일 때 상기 배수펌프를 일정 시간동안 구동시키는 단계를 포함하는 것을 특징으로 하는 식기세척기의 제어방법에 의해 달성된다.On the other hand, the above object, according to another field of the present invention, a washing tank, a water supply valve for supplying the washing water from the outside into the washing tank, an injection nozzle for spraying the washing water into the washing tank, and supplying the washing water to the spray nozzle A control method of a dish washing machine having a feed water pump, a drain pump for discharging the washing water to the outside of the washing tank, and a water level sensor for sensing the water level in the washing tank, the control method comprising: detecting a power cut; Checking the water level in the washing tank, and when the water level in the washing tank is achieved by the control method of the dishwasher comprising the step of driving for a predetermined time.

여기서, 상기 세척조내의 수위를 확인하는 단계는, 상기 수위감지센서에 의해 상기 세척조내의 수위를 감지하는 단계인 것이 바람직하다.Here, the step of checking the water level in the washing tank is preferably a step of detecting the water level in the washing tank by the water level sensor.

그리고, 상기 세척조내의 수위를 확인하는 단계는, 상기 급수밸브의 작동시간에 따라 상기 세척조내의 수위를 추정하는 단계인 것이 바람직하다.The checking of the water level in the washing tank is preferably a step of estimating the water level in the washing tank according to the operation time of the water supply valve.

이하, 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

식기세척기는, 도 1과 관련하여 설명한 바와 같이, 세척조(3)내의 저부에 분사노즐(7)로 세척수를 공급하는 급수펌프(15)와, 분사노즐(7)에 의해 각 바스켓(6,8)으로 분사되었던 세척수가 집수되는 저수케이스(17)가 각각 설치되어 있고, 저수케이스(17)의 하부에는 세척수의 배수를 위한 배수펌프(20)가 설치되어 있다. 그리고, 저수케이스(17)에 인접한 세척조(3)의 일측 영역에는 압력스위치인 수위감지센서(13)에 연결된 에어챔버가 설치되어 있다. 여기서, 저수케이스(17)내에는 도시않은 급수밸브의 개방시 외부로부터의 세척수가 유입수용되게 되며, 저수케이스(17)내의 수위가 상승되면 에어챔버내로도 세척수가 유입되어 수위가 상승하게 된다. 이에 따라, 에어챔버에 연결된 수위감지센서(13)로 압력이 전달되어 수위가 감지되게 된다.As described with reference to FIG. 1, the dishwasher includes a water supply pump 15 for supplying washing water to the spray nozzle 7 at the bottom of the washing tank 3, and each basket 6, 8 by the spray nozzle 7. Each of the storage cases 17 for collecting the washing water sprayed to the water) is installed, and a drain pump 20 for draining the washing water is installed at the lower portion of the storage case 17. In addition, an air chamber connected to the water level sensor 13, which is a pressure switch, is installed in one region of the washing tank 3 adjacent to the water storage case 17. Here, when the water supply valve (not shown) is opened in the storage case 17, the washing water from the outside will be accommodated, and if the water level in the storage case 17 is increased, the washing water is also introduced into the air chamber to raise the water level. Accordingly, pressure is transmitted to the water level sensor 13 connected to the air chamber so that the water level is sensed.

이러한 식기세척기의 동작을 제어하는 제어부는, 도 2에 도시된 바와 같이, 전원공급을 단속하는 전원공급부(5)와, 운전조작을 위한 조작패널부(9), 세척조(3)내의 수위를 감지하는 수위감지센서(13)로부터 입력된 정보에 의해, 구동회로(25)로 신호를 보내어 급수밸브(19)와, 급수펌프(15) 및 배수펌프(20)의 구동을 제어하게 된다.As shown in FIG. 2, the control unit for controlling the operation of the dishwasher detects the water level in the power supply unit 5 for intermitting the power supply, the operation panel unit 9 for the operation operation, and the washing tank 3. The information input from the water level sensor 13 sends a signal to the drive circuit 25 to control the driving of the water supply valve 19, the water feed pump 15, and the drain pump 20.

이에 따라, 세척조(3)내에 식기를 수납하고 세척작업에 돌입하면, 급수밸브(19)가 개방되어 세척조(3)내로 세척수가 공급되고(S10), 저수케이스(17)내로 세척수가 집수되게 된다. 일정시간이 경과하여 저수케이스(17)내의 세척수의 수위가 상승하여 수위감지센서(13)에 감지된 수위가 적정수준에 도달하면(S20,S30), 급수밸브(19)가 차단되고 급수가 중지된다(S40). 그런 다음, 급수펌프(15)가 동작하여 분사노즐(7)로 세척수를 공급하여 식기를 세척하게 된다(S50).Accordingly, when the dishes are stored in the washing tank 3 and the washing operation is started, the water supply valve 19 is opened to supply the washing water into the washing tank 3 (S10), and the washing water is collected into the storage case 17. . When the water level of the washing water in the reservoir case 17 rises after a certain time has elapsed and the water level detected by the water level sensor 13 reaches an appropriate level (S20, S30), the water supply valve 19 is shut off and the water supply is stopped. It becomes (S40). Then, the water supply pump 15 is operated to supply the washing water to the injection nozzle 7 to wash the dishes (S50).

그런데, 이러한 세척작업중, 여러 가지 요인에 의해 세척작업이 중지되며, 세척작업이 중지되는 경우, 제어부(10)는 세척조(3)내의 수위를 확인한다. 이 때, 세척조(3)내의 수위가 일정 수위이상이면, 일정 시간동안 배수펌프(20)를 구동시키게 된다.However, during such a washing operation, the washing operation is stopped by various factors, and when the washing operation is stopped, the controller 10 checks the water level in the washing tank 3. At this time, if the water level in the washing tank 3 is above a certain level, the drain pump 20 is driven for a predetermined time.

예를 들면, 수위감지센서(13)에 의해 감지된 세척수의 수위가 이상수위에 도달하는 경우(S60), 제어부(10)는 급수밸브(19)를 차단시킨 다음, 배수펌프(20)를 일정 시간동안 구동시키고(S80), 전원을 차단하게 된다(S90). 한편, 세척작업시 급수밸브(19)를 일정시간동안 개방시켰음에도 불구하고, 수위감지센서(13)에 의해 적정수위가 감지되지 아니할 경우(S70), 제어부(10)는 수위감지센서(13)가 불량인 것으로 판단하여 급수밸브(19)를 차단시킨 다음, 배수펌프를 구동시키고(S80), 전원을 차단하게 된다(S90).For example, when the level of the washing water detected by the water level sensor 13 reaches the abnormal level (S60), the control unit 10 shuts off the water supply valve 19, and then the drain pump 20 is fixed. Driving for a time (S80), the power is cut off (S90). On the other hand, despite the opening of the water supply valve 19 for a predetermined time during the washing operation, when the proper level is not detected by the water level sensor 13 (S70), the control unit 10 is the water level sensor 13 It is determined that the defective is to shut off the water supply valve 19, then driving the drain pump (S80), and cuts the power (S90).

또한, 세척작업중, 일시적으로 정전이 되거나 오프신호가 입력되는 경우(S100), 제어부(10)는 수위감지센서(13)에 의한 세척조(3)내의 수위를 감지하여(S110) 세척조(3)내의 수위가 도어(4)의 개방시 외부로 유출될 정도의 비교적 높은 수위인 경우, 배수펌프(20)를 일정시간 구동시킨 다음 전원을 차단하고(S80,S90), 비교적 낮은 수위인 경우 바로 전원을 차단하게 된다(S90).In addition, during a washing operation, when a power failure is temporarily or an off signal is input (S100), the controller 10 detects the water level in the washing tank 3 by the water level sensor 13 (S110) in the washing tank 3 When the water level is a relatively high water level that is leaked to the outside when the door 4 is opened, the drain pump 20 is driven for a predetermined time and then the power is cut off (S80, S90), and when the water level is relatively low, the power is immediately It is blocked (S90).

이러한 구성에 의하여, 세척작업이 중지되는 경우, 세척조(3)내의 수위에 따라 배수펌프(20)를 구동시켜 세척수를 배수시킴으로써, 식기세척기의 오버플로우를 방지할 수 있다.By such a configuration, when the washing operation is stopped, the overflow of the dishwasher can be prevented by driving the drainage pump 20 to drain the washing water according to the water level in the washing tank 3.

이상에서 설명한 바와 같이, 본 발명에 따르면, 세척작업의 중지시 오버플로우를 방지할 수 있는 식기세척기 및 그 제어방법이 제공된다.As described above, according to the present invention, there is provided a dish washer and a control method thereof, which can prevent overflow when the washing operation is stopped.

Claims (6)

세척조와, 상기 세척조내로 외부로부터의 세척수를 공급하는 급수밸브와, 상기 세척조내로 세척수를 분사하는 분사노즐과, 상기 분사노즐로 세척수를 공급하는 급수펌프와, 상기 세척조내에 세척수를 외부로 배출하는 배수펌프를 갖는 식기세척기에 있어서,A washing tank, a water supply valve for supplying the washing water from the outside into the washing tank, a spray nozzle for spraying the washing water into the washing tank, a water pump for supplying the washing water to the spray nozzle, and a drain for discharging the washing water to the outside of the washing tank. In a dishwasher having a pump, 세척작업의 중지시, 상기 배수펌프를 일정 시간동안 구동시키는 제어부를 갖는 것을 특징으로 하는 식기세척기.When the washing operation is stopped, the dishwasher, characterized in that it has a control unit for driving the drain pump for a predetermined time. 제 1 항에 있어서,The method of claim 1, 상기 급수밸브에 의한 세척수의 급수시, 수위를 감지하는 수위감지센서를 더 포함하며, 상기 제어부는 세척작업의 중지시, 상기 수위감지센서로부터 감지된 상기 세척조의 수위가 일정 이상일 때 상기 배수펌프를 구동시키는 것을 특징으로 하는 식기세척기.The water supply valve further includes a water level sensor for detecting a water level when the water is supplied by the water supply valve, and the control unit stops the drainage pump when the water level of the washing tank detected from the water level sensor is above a certain level when the washing operation is stopped. Dishwasher, characterized in that for driving. 제 2 항에 있어서,The method of claim 2, 상기 제어부는, 상기 급수밸브의 작동후 일정시간 경과후 상기 세척조의 수위가 정상수위가 아닐 경우, 상기 배수펌프를 구동시키는 것을 특징으로 하는 식기세척기.The control unit, the dishwasher, characterized in that for driving the drainage pump when the water level of the washing tank is not normal after a predetermined time after the operation of the water supply valve. 세척조와, 상기 세척조내로 외부로부터의 세척수를 공급하는 급수밸브와, 상기 세척조내로 세척수를 분사하는 분사노즐과, 상기 분사노즐로 세척수를 공급하는 급수펌프와, 상기 세척조내에 세척수를 외부로 배출하는 배수펌프와, 상기 세척조내의 수위를 감지하는 수위감지센서를 갖는 식기세척기의 제어방법에 있어서,A washing tank, a water supply valve for supplying the washing water from the outside into the washing tank, a spray nozzle for spraying the washing water into the washing tank, a water pump for supplying the washing water to the spray nozzle, and a drain for discharging the washing water to the outside of the washing tank. In the control method of the dishwasher having a pump and a water level sensor for sensing the water level in the washing tank, 전원차단을 감지하는 단계와,Detecting a power cut; 전원차단시, 상기 세척조내의 수위를 확인하는 단계와,Checking the water level in the washing tank when the power is cut off, 상기 세척조내의 수위가 일정 이상일 때 상기 배수펌프를 일정 시간동안 구동시키는 단계를 포함하는 것을 특징으로 하는 식기세척기의 제어방법.And driving the drainage pump for a predetermined time when the water level in the washing tank is above a certain level. 제 4 항에 있어서,The method of claim 4, wherein 상기 세척조내의 수위를 확인하는 단계는, 상기 수위감지센서에 의해 상기 세척조내의 수위를 감지하는 단계인 것을 특징으로 하는 식기세척기의 제어방법.Checking the water level in the washing tank, the control method of the dishwasher, characterized in that for detecting the water level in the washing tank by the water level sensor. 제 4 항에 있어서,The method of claim 4, wherein 상기 세척조내의 수위를 확인하는 단계는, 상기 급수밸브의 작동시간에 따라 상기 세척조내의 수위를 추정하는 단계인 것을 특징으로 하는 식기세척기의 제어방법.The checking of the water level in the washing tank, the control method of the dishwasher, characterized in that for estimating the water level in the washing tank according to the operating time of the water supply valve.
KR1019980030430A 1998-07-28 1998-07-28 Dish washer and control method thereof KR100267931B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100493283B1 (en) * 2002-03-26 2005-06-03 엘지전자 주식회사 Method for controlling surplus water supply in a dish washing machine
KR100857786B1 (en) * 2001-12-24 2008-09-09 엘지전자 주식회사 Dish washer and operation method thereof
KR101130486B1 (en) * 2004-09-09 2012-03-27 엘지전자 주식회사 A dish washer and method of controlling the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100857786B1 (en) * 2001-12-24 2008-09-09 엘지전자 주식회사 Dish washer and operation method thereof
KR100493283B1 (en) * 2002-03-26 2005-06-03 엘지전자 주식회사 Method for controlling surplus water supply in a dish washing machine
KR101130486B1 (en) * 2004-09-09 2012-03-27 엘지전자 주식회사 A dish washer and method of controlling the same

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