KR20140014744A - Method for control of empty heating in dishwasher water tank - Google Patents

Method for control of empty heating in dishwasher water tank Download PDF

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KR20140014744A
KR20140014744A KR1020120081549A KR20120081549A KR20140014744A KR 20140014744 A KR20140014744 A KR 20140014744A KR 1020120081549 A KR1020120081549 A KR 1020120081549A KR 20120081549 A KR20120081549 A KR 20120081549A KR 20140014744 A KR20140014744 A KR 20140014744A
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South Korea
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water
heater
temperature
dishwasher
water tank
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KR1020120081549A
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Korean (ko)
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지영두
문종환
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린나이코리아 주식회사
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Priority to KR1020120081549A priority Critical patent/KR20140014744A/en
Publication of KR20140014744A publication Critical patent/KR20140014744A/en

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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
    • A47L15/46—Devices for the automatic control of the different phases of cleaning ; Controlling devices
    • 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
    • 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
    • A47L15/4287—Temperature measuring or regulating arrangements

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  • Washing And Drying Of Tableware (AREA)

Abstract

The present invention relates to a method for preventing the idle heating of the heater of a dishwasher. The purpose of the present invention is to detect that the heater is heated with no water due to a defect of a water level sensor when the heater of the dishwasher is driven, determine this as idle heating, and stop the driving of the heater. The method for preventing the idle heating of the heater of a dishwasher can drive the heater according to sensing results of a microcontroller which detects the temperature and level of water in a water tank while the dishwasher is operating, and comprises the steps of: allowing the microcontroller to detect the temperature of the water input through a temperature sensor of the water tank while the dishwasher is being driven; allowing the microcontroller to detect the water level of the water tank if the detected temperature of water drops less than a predetermined temperature; allowing the microcontroller to drive the heater if the water level of the water tank is more than a predetermined value to heat the water in the water tank; allowing the microcontroller to calculate a rising rate of the temperature detected by the temperature sensor; and allowing the microcontroller to determine that the water level sensor has a problem if the rising rate of the temperature is more than a predetermined rate to turn off the heater. [Reference numerals] (AA) Dishwashing state; (BB) No; (CC) Water temperature sensor TH < N °C; (DD,GG,JJ,NN) Yes; (EE,KK,LL) No; (FF) Water level detected?; (HH) Turn on a water tank heater; (II) Greater than a temperature rising rate reference value per minute?; (MM) Washing-enabled temperature?; (OO) Turn off the heater; (PP) Turn off the heater (if idle heating); (QQ) Sound alarm if it is determined that a water level sensor has a problem

Description

식기세척기의 히터 공가열 방지방법 {Method for control of Empty Heating in Dishwasher Water Tank}How to prevent empty heating of dishwasher {Method for control of Empty Heating in Dishwasher Water Tank}

본 발명은 식기세척기에 관한 것으로, 보다 상세하게는 식기세척기의 수위센서가 이상있을 경우에도, 감지된 온도에 의해 히터가 공기 중 동작하지 않도록 공가열을 방지하는 식기세척기의 히터 공가열 방지방법에 관한 것이다.The present invention relates to a dishwasher, and more particularly, to a method for preventing heater co-heating of a dishwasher to prevent co-heating so that the heater does not operate in the air by the sensed temperature even when the level sensor of the dishwasher is abnormal. It is about.

종래의 식기 세척기는 도 1에 도시된 바와 같이, 식기세척기 동작이 온 상태에서 온도센서를 이용하여 물의 온도를 검지하여, 물의 온도가 설정된 온도(N℃)이하로 떨어지면, 물의 온도를 높이도록 히터를 구동한다. As shown in FIG. 1, the conventional dishwasher detects the temperature of water using a temperature sensor while the dishwasher is turned on, and when the temperature of the water falls below a predetermined temperature (N ° C.), the heater is heated to increase the temperature of the water. To drive.

이때, 세척동작에 필요한 헹굼 또는 세척탱크의 물이 일정 수위를 유지하고 있는지를 확인한 후 일정 수위 이상일 때에만 히터를 구동하여 세척수 또는 헹굼수의 수온을 높이게 된다.At this time, after checking whether the water in the rinsing or washing tank required for the washing operation maintains a certain level, the heater is driven only when the water level is above a certain level to increase the water temperature of the washing water or the rinsing water.

상기 히터가 구동됨에 따라 설정된 세척 또는 헹굼 가능온도가 되면 히터 구동을 오프시키고 식기세척 동작을 수행한다. When the washing or rinsing temperature is set as the heater is driven, the heater is turned off and the dish washing operation is performed.

이와 같은 종래기술에 따른 종래의 식기세척기 히터는 수온이 일정 온도 이하로 떨어지면 히터를 동작시켜 물의 온도를 상승시키는데, 이때 수위센서를 이용하여 물의 유무를 판단하여 물이 있을 경우에만 히터를 가동한다.In the conventional dishwasher heater according to the prior art, when the water temperature drops below a certain temperature, the heater is operated to increase the temperature of the water. At this time, the heater is operated only when there is water by judging the presence or absence of water using the water level sensor.

그런데, 만약 수위센서에 결함이 발생하여, 물이 없는 경우에도 물이 있다라고 오류가 발생되면, 히터는 물이 있다고 판단하고 히터를 가동하게 된다. 즉, 물이 없는 상태에서 히터가 가동됨에 따라 히터의 손상 또는 내구성 저하뿐만 아니라, 화재가 발생될 수 있는 문제점이 있었다.However, if a fault occurs in the water level sensor and an error occurs that there is water even when there is no water, the heater determines that there is water and operates the heater. That is, as the heater is operated in the absence of water, there is a problem that a fire may occur as well as damage or durability of the heater.

따라서, 본 발명은 종래기술의 문제점을 개선하기 위하여, 식기세척기의 히터를 구동함에 있어, 수위센서의 결함으로 물이 없는 상태에서 히터가 가열될 경우 이를 감지하여 공가열로 판단하고 히터 구동을 차단하도록 하는 식기세척기의 히터 공가열 방지방법를 제공하는데 그 목적이 있다.Therefore, in order to improve the problems of the prior art, when driving the heater of the dishwasher, it is determined that the heater is heated in the absence of water due to a defect in the water level sensor, judging by the co-heating and blocking the driving of the heater It is an object of the present invention to provide a method for preventing heater co-heating of a dishwasher.

본 발명의 목적을 달성하기 위한 식기세척기의 히터 공가열 방지방법은 식기세척기의 식기세척 동작 중 물탱크의 물의 온도 및 수위 감지한 마이크로콘트롤러의 감지결과에 따라 히터를 구동하는 식기세척기의 히터 공가열 방지방법에 있어서, 상기 마이크로콘트롤러는 식기세척기 구동중 상기 물탱크의 온도센서를 통해 입력된 물의 온도를 감지하는 제1과정; 상기 감지된 물의 온도가 설정된 온도 이하로 떨어지면 물탱크의 수위를 감지하는 제2과정; 상기 물탱크의 수위가 설정된 값 이상이면 히터를 구동하여 물탱크의 물을 가열하는 제3과정; 상기 온도센서로부터 감지된 온도의 상승속도를 산출하는 제4과정; 및 상기 온도상승속도가 설정된 속도 이상이면 수위센서 이상으로 판단하고 히터를 오프시키는 제5과정;을 포함하여 이루어진 것을 특징으로 한다.In order to achieve the object of the present invention, a method for preventing heating of a heater in a dishwasher is performed by heating a heater of a dishwasher to drive a heater according to a result of sensing a temperature and a water level of a microcontroller during a dishwashing operation of the dishwasher. In the prevention method, the microcontroller comprises a first step of sensing the temperature of the water input through the temperature sensor of the water tank while the dishwasher is running; A second step of detecting a water level of the water tank when the detected water temperature drops below a set temperature; A third step of heating the water in the water tank by driving a heater when the water level of the water tank is equal to or greater than a set value; Calculating a rising speed of the temperature sensed by the temperature sensor; And a fifth process of determining that the temperature rise speed is equal to or higher than the set speed and turning off the heater.

이와 같이 이루어진 본 발명에 따른 식기세척기의 히터 공가열 방지방법은 히터의 공가열 방지로 인한 손상 또는 내구성 저하를 방지할 수 있는 효과가 있으며, 공가열로 인한 전력소모를 방지할 수 있는 효과가 있으며, 수위센서의 결함유무를 판단하고, 결함 발생시 이를 경보하여 사용자로 하여금 조치를 취할 수 있도록 하는 효과가 있다. The heater co-heating prevention method of the dishwasher according to the present invention made as described above has the effect of preventing damage or durability reduction due to the prevention of co-heating of the heater, and has the effect of preventing power consumption due to co-heating. In addition, it is effective to determine whether there is a defect in the water level sensor and to alert the user when a defect occurs.

도 1은 종래기술에 따른 식기세척기의 세척수 가열과정의 흐름도이고,
도 2는 본 발명을 구현하기 위한 식기세척기의 히터 공가열 방지장치의 블록 구성도이고,
도 3은 본 발명의 실시예에 따른 식기세척기의 히터 공가열 방지과정의 흐름도이다.1 is a flow chart of the washing water heating process of the dishwasher according to the prior art,
Figure 2 is a block diagram of a heater co-heating prevention device of the dishwasher for implementing the present invention,
3 is a flow chart of a heater co-heating prevention process of the dishwasher according to the embodiment of the present invention.

본 발명의 실시예에 따른 식기세척기의 히터 공가열 방지방법에 대한 구성 및 작용을 첨부된 도면을 참고하여 상세히 설명하면 다음과 같다.Referring to the configuration and operation of the heater co-heating prevention method of the dishwasher according to an embodiment of the present invention in detail with reference to the accompanying drawings as follows.

도 2는 본 발명을 구현하기 위한 식기세척기의 히터 공가열 방지장치의 블록 구성도로서, 헹굼 또는 세척을 위한 물탱크의 수위를 감지하기 위한 수위센서(11)와, 물탱크의 수온을 감지하기 위한 온도센서(12)와, 상기 물탱크의 물을 가열하기 위한 히터(13)와, 상기 수위센서(11)의 결함발생시 이를 음성 또는 문자로 경보하기 위한 경보부(14)로 구성된다.Figure 2 is a block diagram of a heater co-heating prevention device of the dishwasher for implementing the present invention, the water level sensor 11 for detecting the water level of the water tank for rinsing or washing, and detecting the water temperature of the water tank It consists of a temperature sensor 12, a heater 13 for heating the water of the water tank, and an alarm unit 14 for warning the voice or text when a defect occurs in the water level sensor (11).

여기서, 상기 물탱크는 세척수를 가열 공급하기 위한 세척탱크 또는 헹굼수를 가열 공급하는 헹굼탱크를 포함하며, 상기 히터(13), 수위센서(11), 온도센서(12)는 상기 세척탱크 및 행굼탱크에 각각 구비된다.
Here, the water tank includes a washing tank for heating and supplying the washing water or a rinsing tank for heating and supplying the rinsing water, and the heater 13, the water level sensor 11, and the temperature sensor 12 include the washing tank and the rinse tank. Each tank is provided.

이와 같이 구성된 본 발명의 작용을 첨부된 도 2, 도 3을 참조하여 상세히 설명하면 다음과 같다.The operation of the present invention configured as described above will be described in detail with reference to FIGS. 2 and 3 as follows.

먼저, 본 발명은 식기세척기가 사용자에 의해 식기 헹굼 또는 세척기능을 수행할 때, 각 물탱크에 구비된 히터를 가동할 때, 수위센서가 결함이 발생할지라도 물의 유무를 확실하게 판단하여 히터가 공가열 되지않도록 한다.First, in the present invention, when the dishwasher performs a dish rinsing or washing function by a user, when the heater provided in each water tank is operated, the heater is surely determined whether water is present even if the water level sensor is defective. Do not heat.

도 3은 본 발명의 실시예에 따른 식기세척기의 히터 공가열 방지과정의 흐름도로서, 식기세척기에 수납된 식기를 세척하기 위해 물탱크(세척탱크 및 헹굼탱크)에 있는 일정온도의 물을 이용 세척 또는 행굼동작을 수행한다.3 is a flowchart illustrating a process for preventing heater co-heating of a dishwasher according to an exemplary embodiment of the present invention, which uses a predetermined temperature of water in a water tank (washing tank and rinsing tank) to wash dishes stored in the dishwasher. Or perform a rinsing operation.

만약, 온도센서(12)를 통해 물온도를 감지한 마이크로콘트롤러(10)는 설정된 온도이하(TH ≥ N℃)로 떨어지면, 상기 히터(13)를 구동하여 물의 온도를 높여주게 된다.If the microcontroller 10 that detects the water temperature through the temperature sensor 12 falls below the set temperature (TH ≥ N ° C), the temperature of the water is increased by driving the heater 13.

이때, 물탱크의 히터(13)을 구동하기 전에 물탱크에 물이 일정 수위를 유지하고 있는지를 수위센서(12)를 통해 감지한다.At this time, before driving the heater 13 of the water tank, it is detected through the water level sensor 12 whether the water maintains a constant level in the water tank.

상기 물탱크의 물이 일정 수위를 유지하고 있으면, 상기 히터(13)를 구동하여 물을 설정된 세척 또는 헹굼 온도(Y℃)로 가열하기 시작한다. If the water in the water tank maintains a constant water level, the heater 13 is driven to start heating the water to the set washing or rinsing temperature (Y ° C.).

상기 물탱크의 물을 가열한 후 상기 온도센서(12)를 통해 입력된 감지온도가 세척 또는 헹굼 가능한 온도(Y℃)가 되면 상기 히터(13) 구동을 오프시키고 세척 또는 헹굼동작을 수행한다.After the water in the water tank is heated, if the sensing temperature input through the temperature sensor 12 becomes a temperature capable of washing or rinsing (Y ° C.), the heater 13 is turned off and the washing or rinsing operation is performed.

한편, 상기 마이크로콘트롤러(10)는 상기 히터(13)가 구동된 후 상기 온도센서(12)가 설정된 온도(Y℃)에 이르기까지의 분당 상승속도를 산출한다. On the other hand, the microcontroller 10 calculates the rate of increase per minute from when the heater 13 is driven until the temperature sensor 12 reaches a set temperature (Y ° C.).

상기 마이크로콘트롤러(10)의 명령에 따라 상기 히터(13)가 구동하기 시작하여 설정된 온도까지 가열되는 시간은 물이 있을 때 보다 물이 없을 때의 분당 상승폭이 큰 차이가 발생한다.According to the command of the microcontroller 10, the time when the heater 13 starts to be driven and heated to a set temperature is greater than the increase in minute per minute when there is no water than when there is water.

특히, 물탱크가 밀폐되어 있기 때문에 공가열시에는 물이 있을때 보다 물이 없을 때의 분당 온도 상승폭이 매우 크기 때문에 이를 기준으로 공가열 여부를 판단하게 된다. In particular, since the water tank is sealed, when the air is heated, the temperature increase per minute in the absence of water is much greater than in the presence of water, and thus it is determined whether the air is heated.

만약, 상기 마이크로콘트롤러(10)에 의해 산출된 분당 상승속도가 설정된 상승속도 이상으로 판단될 경우 현재 물탱크에 물이 없거나, 기준 수위를 유지못하고 있다고 판단하여 상기 히터(13)의 구동을 오프시킨다.If it is determined that the ascending speed per minute calculated by the microcontroller 10 is equal to or higher than the set ascending speed, it is determined that there is no water in the current water tank or that the reference water level cannot be maintained and the driving of the heater 13 is turned off. .

즉, 상기 수위센서(11)는 물탱크의 물이 일정 수위를 유지하고 있다고 검지되었는데, 상기 온도센서(12)에서 감지된 온도의 상승속도를 산출한 결과 물이 없거나 부족한 것으로 판단하게 되어, 결국 상기 수위센서(11)가 정확한 수위를 감지하지 못한 수위센서(11)의 결함으로 판단하게 된다.That is, the water level sensor 11 is detected that the water in the water tank maintains a constant water level, as a result of calculating the rate of rise of the temperature detected by the temperature sensor 12 is determined that there is no water or insufficient, eventually The water level sensor 11 is determined to be a defect of the water level sensor 11 that did not detect the correct level.

상기 수위센서(11)의 결함으로 판단됨에 따라 히터구동을 오프시킴과 아울러 상기 경보부(14)를 통해 수위센서 결함을 경보음 또는 표시창을 통해 경보메시지를 출력하여 사용자로 하여금 점검을 경보하게 된다.As the water level sensor 11 is determined to be defective, the heater is turned off and the alarm unit 14 outputs an alarm message through the alarm sound or the display window to alert the user of the inspection.

그리고, 상기에서 본 발명의 특정한 실시 예가 설명 및 도시되었지만 본 발명의 식기세척기의 히터 공가열 방지방법는 당업자에 의해 다양하게 변형되어 실시될 수 있음은 자명한 일이다. In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the method for preventing heater co-heating of the dish washing machine of the present invention can be variously modified and implemented by those skilled in the art.

그러나, 이와 같은 변형된 실시예들은 본 발명의 기술적 사상이나 범위로부터 개별적으로 이해되어져서는 안되며, 이와 같은 변형된 실시 예들은 본 발명의 첨부된 특허청구범위 내에 포함된다 해야 할 것이다. It should be understood, however, that such modified embodiments are not to be understood individually from the spirit and scope of the invention, and such modified embodiments are intended to be included within the scope of the appended claims.

10 : 마이크로콘트롤러(10) 11 : 수위센서
12 : 온도센서 13 : 히터
14 : 경보부
10: microcontroller (10) 11: water level sensor
12: temperature sensor 13: heater
14: alarm unit

Claims (4)

식기세척기의 식기세척 동작 중 물탱크의 물의 온도 및 수위 감지한 마이크로콘트롤러의 감지결과에 따라 히터를 구동하는 식기세척기의 히터 공가열 방지방법에 있어서,
상기 마이크로콘트롤러는 식기세척기 구동중 상기 물탱크의 온도센서를 통해 입력된 물의 온도를 감지하는 제1과정;
상기 감지된 물의 온도가 설정된 온도 이하로 떨어지면 물탱크의 수위를 감지하는 제2과정;
상기 물탱크의 수위가 설정된 값 이상이면 히터를 구동하여 물탱크의 물을 가열하는 제3과정;
상기 온도센서로부터 감지된 온도의 상승속도를 산출하는 제4과정; 및
상기 온도상승속도가 설정된 속도 이상이면 수위센서 이상으로 판단하고 히터를 오프시키는 제5과정;을 포함하여 이루어진 것을 특징으로 하는 식기세척기의 히터 공가열 방지방법. In the method of preventing the heater heating of the dishwasher for driving the heater in accordance with the detection result of the water temperature and the water level of the microcontroller during the dishwashing operation of the dishwasher,
The microcontroller is a first step of sensing the temperature of the water input through the temperature sensor of the water tank while driving the dishwasher;
A second step of detecting a water level of the water tank when the detected water temperature drops below a set temperature;
A third step of heating the water in the water tank by driving a heater when the water level of the water tank is equal to or greater than a set value;
Calculating a rising speed of the temperature sensed by the temperature sensor; And
And a fifth step of determining that the temperature rise speed is equal to or higher than the set speed and turning off the heater. 5. 제 1 항에 있어서,
상기 제4과정은 상기 마이크로콘트롤러에 의해 상기 설정된 온도까지의 상승속도를 산출하는 것을 특징으로 하는 식기세척기의 히터 공가열 방지방법.The method of claim 1,
The fourth process is a method for preventing the heater heating of the dishwasher, characterized in that for calculating the rising speed to the set temperature by the microcontroller. 제 1 항에 있어서,
상기 제5과정에 부가하여 수위센서 이상 결함 발생에 대한 경보를 출력하는 것을 특징으로 하는 식기세척기의 히터 공가열 방지방법.The method of claim 1,
In addition to the fifth process, the heater heating prevention method of the dishwasher, characterized in that for outputting an alarm for the occurrence of an abnormality in the water level sensor. 제 1 항에 있어서,
상기 물탱크는 식기세척을 위한 세척탱크 또는 헹굼을 위한 헹굼탱크인 것을 특징으로 식기세척기의 히터 공가열 방지방법. The method of claim 1,
The water tank is a washing tank for dish washing or a rinsing tank for rinsing, it characterized in that the heater heating of the dishwasher.
KR1020120081549A 2012-07-26 2012-07-26 Method for control of empty heating in dishwasher water tank KR20140014744A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160025343A (en) 2014-08-27 2016-03-08 김성길 Heater for dishwasher and cotrol method thereof
KR20160025342A (en) 2014-08-27 2016-03-08 김성길 Heater for dishwasher and cotrol method thereof
EP3138460A1 (en) 2015-09-04 2017-03-08 Arçelik Anonim Sirketi A dishwasher with increased security and the control method thereof
CN106725177A (en) * 2015-11-25 2017-05-31 上海酒店设备股份有限公司 The power-economizing method of dish-washing machine and the dish-washing machine for making in this way

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160025343A (en) 2014-08-27 2016-03-08 김성길 Heater for dishwasher and cotrol method thereof
KR20160025342A (en) 2014-08-27 2016-03-08 김성길 Heater for dishwasher and cotrol method thereof
EP3138460A1 (en) 2015-09-04 2017-03-08 Arçelik Anonim Sirketi A dishwasher with increased security and the control method thereof
CN106725177A (en) * 2015-11-25 2017-05-31 上海酒店设备股份有限公司 The power-economizing method of dish-washing machine and the dish-washing machine for making in this way

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