KR100343679B1 - Method for preventing freezing of damper - Google Patents

Method for preventing freezing of damper Download PDF

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Publication number
KR100343679B1
KR100343679B1 KR1019980011268A KR19980011268A KR100343679B1 KR 100343679 B1 KR100343679 B1 KR 100343679B1 KR 1019980011268 A KR1019980011268 A KR 1019980011268A KR 19980011268 A KR19980011268 A KR 19980011268A KR 100343679 B1 KR100343679 B1 KR 100343679B1
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KR
South Korea
Prior art keywords
temperature
refrigerator
cold air
reached
determination
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KR1019980011268A
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Korean (ko)
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KR19990076358A (en
Inventor
김석노
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엘지전자주식회사
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Application filed by 엘지전자주식회사 filed Critical 엘지전자주식회사
Priority to KR1019980011268A priority Critical patent/KR100343679B1/en
Priority to DE19914261A priority patent/DE19914261B4/en
Priority to US09/280,848 priority patent/US6125641A/en
Priority to CN99106107A priority patent/CN1120973C/en
Priority to JP09372799A priority patent/JP4159172B2/en
Publication of KR19990076358A publication Critical patent/KR19990076358A/en
Application granted granted Critical
Publication of KR100343679B1 publication Critical patent/KR100343679B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Abstract

PURPOSE: A method is provided to prevent freezing of the damper caused when the refrigerator is stopped its operation at the state where the ambient temperature is lower than the temperature of the refrigerator. CONSTITUTION: A method comprises a first step of operating a compressor and a cooling fan, opening a cooling air cut-off film, judging whether the current temperature of the refrigerating compartment has reached to a preset temperature level, and maintaining the judging process until the refrigerating compartment reaches the preset temperature; a second step of closing the cooling air cut-off film, and judging whether the current temperature of the freezer compartment has reached to the preset temperature level, if the current temperature of the refrigerating compartment has reached to the preset temperature; a third step of returning to the first step, if the current temperature of the freezer compartment has not reached to the preset temperature, and stopping the operation of the compressor and the freezing fan and judging whether the ambient temperature is higher than a predetermined temperature level, if the current temperature of the freezer compartment has reached to the preset temperature; a fourth step of returning to the first step, if the ambient temperature is higher than the predetermined temperature level, and judging whether the refrigerator door is open and maintaining the judging process if the ambient temperature is lower; a fifth step of judging whether the temperature difference before and after opening/closing the refrigerator door is higher than a preset temperature level, and returning to the first step if the temperature difference is not higher; and a sixth step of opening the cooling air cut-off film for a predetermined time period, operating the freezing fan and returning to the first step if the temperature difference is higher.

Description

냉기조절장치의 결빙방지방법{METHOD FOR PREVENTING FREEZING OF DAMPER}How to prevent freezing of cold air conditioning system {METHOD FOR PREVENTING FREEZING OF DAMPER}

본 발명은 냉기조절장치의 결빙방지방법에 관한 것으로, 특히 주위 온도가 냉장고의 고내 온도보다 낮은 상태에서 냉장고의 운전이 정지하였을 때 냉장실에 고온고습의 식품부하를 투입하거나, 외기가 냉장실로 유입되면 이를 온도감지센서가 감지하게 하고, 이 감지한 온도와 냉장실 문의 개폐전의 온도차가 설정온도차 이상인 경우 댐퍼의 배플을 열고, 냉동 팬을 구동시켜 냉기의 유동을 줌으로써, 결빙을 방지하게 하는 냉기조절장치의 결빙방지방법에 관한 것이다.The present invention relates to a method of preventing freezing of a cold air conditioner, and particularly, when a food load of high temperature and high humidity is put into a refrigerating compartment or an outside air flows into a refrigerating compartment when the operation of the refrigerator is stopped while the ambient temperature is lower than the internal temperature of the refrigerator. The temperature sensor detects this, and if the detected temperature and the temperature difference before opening / closing the refrigerating compartment door are higher than the set temperature difference, the damper's baffle is opened, and the refrigeration fan is driven to give the flow of cold air to prevent freezing. It relates to a method of preventing freezing.

도 1은 종래 냉장고의 일예를 개략적으로 보인 정면도이고, 도 2는 도 1에서 냉기조절장치의 구성을 보인 측면도로서, 이에 도시된 바와 같이 냉장실에는 냉장실의 온도를 감지하여 온도를 제어하는 온도감지센서(S1, S2)가 냉장실의 좌,우 또는 뒷벽에 부착되어 있으며, 대개의 경우는 1개의 냉기차단막(Baffle)(10)을 가진 냉기조절장치(Damper)로 냉장실 전체에 냉기를 공급하나, 필요에 따라서는 2개의 냉기차단막을 가진 냉기조절장치로 중칸과 하칸의 측벽에 온도감지센서를 부착하여 각각의 온도감지센서로 각 냉기조절장치의 냉기차단막을 제어하여 중칸과 하칸의 온도를 제어한다.1 is a front view schematically showing an example of a conventional refrigerator, and FIG. 2 is a side view showing the configuration of a cold air conditioner in FIG. 1, and as shown therein, a temperature sensing sensor controlling a temperature by sensing a temperature of a refrigerating compartment. (S1, S2) is attached to the left, right or rear wall of the refrigerating compartment, and in most cases a cold air control device (Damper) with one baffle (10) to supply cold air throughout the refrigerating compartment, but required According to this, a cold air conditioner having two cold air blocking membranes is attached to the side walls of the middle compartment and the lower compartment, and a temperature sensor is attached to each side of the cold air control unit to control the temperature of the middle compartment and the lower compartment.

주위 온도가 냉장고의 고내 온도보다 낮은 상태에서 냉장실의 온도가 설정된 온도(보통 3℃)에 도달하여 냉장고의 운전이 정지하였을 때 냉장실에 고온고습의 식품부하를 투입하거나, 냉장실 문을 열었을 때 외기가 냉장실로 유입되어, 고내의 온도차에 의해 고내온도보다 항상 상대적으로 낮은 냉기차단막(10)의 표면이나 주위구조물에 착상하여 물방울이 형성되고, 냉장고의 운전이 개시되어 저온(보통 -18℃)의 냉기가 토출되면 얼음으로 성장하여 결빙이 발생한다.When the temperature of the fridge reaches the set temperature (usually 3 ℃) when the ambient temperature is lower than the refrigerator's internal temperature, the food load of high temperature and high humidity is put into the fridge or the air is opened when the fridge door is opened. Water flows into the refrigerating chamber and forms water droplets on the surface or surrounding structure of the cold air barrier 10, which is relatively lower than the internal temperature, due to the temperature difference in the refrigerator, and the operation of the refrigerator is started to produce cold air at low temperature (usually -18 ° C). When it is discharged, it grows into ice and freezes.

결빙이 발생하는 원인은 도 3에 도시된 바와 같이 대개 냉장실의 온도만족시간과 냉동실의 온도만족시간이 서로 다르기 때문에 발생되는데, 압축기(미도시)와 냉동팬(1)이 구동되고, 냉기조절장치의 냉기차단막(10)이 전개되면 냉장실의 온도가 냉장실 설정온도(보통 3℃)에 도달하였는지를 판단하며, 통상 냉장실의 온도가 설정온도에 도달하는 것이 빠르며, 이 때문에 냉장실의 온도가 만족되면 냉기차단막(10)이 전폐되어 냉장실로 토출되던 냉기가 차단되고, 냉동실의 온도를 만족시키기 위해 냉장고가 운전하는 동안 저온의 냉기가 냉기차단막(10)을 지속적으로 냉각시켜, 냉기차단막(10)의 표면 및 주위의 온도를 저온으로 유지시킨다(냉기가 정체되어 있어 유동이 없기 때문).The cause of freezing is usually caused by the temperature satisfaction time of the refrigerating compartment and the temperature satisfaction time of the freezer compartment as shown in Figure 3, the compressor (not shown) and the freezing fan 1 is driven, the cold air conditioner When the cold air barrier membrane 10 is developed, it is determined whether the temperature of the refrigerating compartment has reached the refrigerating chamber set temperature (usually 3 ° C.), and it is usually faster for the refrigerating compartment temperature to reach the set temperature. The cold air discharged into the refrigerating compartment is blocked by the entirety of 10, and low temperature cold air continuously cools the cold air barrier 10 during the operation of the refrigerator to satisfy the temperature of the freezing compartment, and thus the surface of the cold air barrier 10 Keep the ambient temperature low (because it is stagnant and there is no flow).

상기와 같이 종래의 기술에 있어서는 도 4에 도시된 바와 같이 냉장실의 온도가 설정된 온도(보통 3℃)에 도달하여 냉장고의 운전이 정지하였을 때 냉장실에 고온고습의 식품부하를 투입하거나, 냉장실 문을 열었을 때 외기가 냉장실로 유입되어, 고내의 온도차에 의해 고내온도보다 항상 상대적으로 낮은 냉기차단막(10)의 표면이나 주위 구조물에 착상하여 물방울이 형성됨으로써, 냉장고의 운전이 개시되어 저온의 냉기가 토출되면 얼음으로 결빙되어 냉장실로 토출되는 냉기가 제어되지 못해 고내의 온도가 저온으로 내려가 식품부하가 과냉되고, 또한 이를 해결하기 위하여 히터를 부착함으로써, 그 만큼의 원가가 상승하는 문제점이 있었다.As described above, in the related art, when the temperature of the refrigerator compartment reaches a set temperature (usually 3 ° C.) as shown in FIG. 4 and the operation of the refrigerator is stopped, a food load of high temperature and high humidity is put into the refrigerator compartment, or the refrigerator compartment door is opened. When opened, outside air flows into the refrigerating chamber, and water droplets are formed on the surface of the cold air barrier membrane 10 or the surrounding structure, which is relatively lower than the internal temperature, due to the temperature difference in the refrigerator. The operation of the refrigerator is started, and cold air is discharged. When the ice is frozen in ice and the cold air discharged into the refrigerating chamber is not controlled, the temperature in the refrigerator is lowered to a low temperature, the food load is supercooled, and a heater is attached to solve the problem.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 창안한 것으로, 주위 온도가 냉장고의 고내 온도보다 낮은 상태에서 냉장고의 운전이 정지하였을때 냉장실에 고온고습의 식품부하를 투입하거나, 외기가 냉장실로 유입되면 이를 온도감지센서가 감지하게 하고, 이 감지한 온도와 냉장실 문의 개폐전의 온도차가 설정온도차 이상인 경우 댐퍼의 배플을 열고, 냉동 팬을 구동시켜 냉기의 유동을 줌으로써, 결빙을 방지하게 하는 방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the food load of the high temperature and high humidity in the refrigerator compartment when the operation of the refrigerator is stopped while the ambient temperature is lower than the internal temperature of the refrigerator, or outside air When it enters the refrigerating chamber, the temperature sensor detects it, and if the detected temperature and the temperature difference before opening / closing the refrigerating compartment door are more than the set temperature difference, the damper opens the baffle and drives the refrigeration fan to provide the flow of cold air to prevent freezing. The purpose is to provide a method.

도 1은 종래 냉장고의 일예를 개략적으로 보인 정면도.1 is a front view schematically showing an example of a conventional refrigerator.

도 2는 도 1에서 냉기조절장치의 구성을 보인 측면도.Figure 2 is a side view showing the configuration of the cold air conditioner in FIG.

도 3은 종래 냉장고의 동작 흐름도.3 is an operation flowchart of a conventional refrigerator.

도 4는 도 1의 냉기조절장치에 발생하는 결빙을 보인 예시도.Figure 4 is an exemplary view showing the ice that occurs in the cold air conditioner of FIG.

도 5는 본 발명의 동작 흐름도.5 is an operational flowchart of the present invention.

***도면의 주요 부분에 대한 부호의 설명****** Description of the symbols for the main parts of the drawings ***

1 : 냉동 팬1: freezing fan

10 : 냉기차단막 S1, S2 : 온도감지센서10: cold air blocking membrane S1, S2: temperature sensor

이와 같은 목적을 달성하기 위한 본 발명 냉기조절장치의 결빙방지방법은 압축기 및 냉동 팬을 구동시키고, 냉기차단막을 전개한 후, 현재 냉장실 온도가 설정된 냉장실 온도에 도달하였는지를 판단하여, 도달할 때까지 그 판단과정을 유지하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 냉기차단막을 전폐한 다음 현재 냉동실 온도가 설정된 냉동실 온도에 도달하였는지를 판단하는 제2 단계와; 상기 제2 단계의 판단결과 도달하지 못하였으면 상기 제1 단계의 판단과정으로 되돌아가고, 도달하였으면 상기 압축기와 냉동 팬의 구동을 정지시킨 다음 온도센서에서 감지한 주위온도가 소정의 온도 이상인가를 판단하는 제3 단계와; 상기 제3 단계의 판단결과 소정의 온도 이상이면 상기 제1 단계의 판단과정으로 되돌아가고, 소정의 온도 이하이면 냉장고 문이 열렸는지를 판단하여, 열릴 때까지 그 판단과정을 유지하는 제4 단계와; 상기 제4 단계의 판단결과 냉장고 문이 열렸으면 문의 개폐전후의 온도차가 설정온도차 이상인가를 판단하여, 설정온도차 이상이 아니면 상기 제1 단계의 판단과정으로 되돌아가는 제5 단계와; 상기 제5 단계의 판단결과 설정온도차 이상이면 설정시간 동안 냉기차단막을 전개하고, 냉동 팬을 구동시킨 후, 상기 제1단계의 판단과정으로 되돌아가는 제6 단계로 이루어진 것을 특징으로 한다.In order to achieve the above object, the freezing prevention method of the present invention is to control the compressor and the refrigeration fan, deploy the cold cutoff membrane, determine whether the current refrigerating chamber temperature reaches the set refrigerating chamber temperature, and until the temperature is reached. A first step of maintaining a judgment process; A second step of determining whether the current freezer compartment temperature reaches a set freezer compartment temperature after closing the cold air barrier membrane if the determination result of the first stage is reached; If the determination result of the second step has not been reached, the process returns to the determination step of the first step, and when it reaches the determination result, the operation of the compressor and the refrigeration fan is stopped, and it is determined whether the ambient temperature detected by the temperature sensor is above a predetermined temperature. Performing a third step; A fourth step of returning to the determination step of the first step if the determination result of the third step is equal to or higher than a predetermined temperature; and determining whether the refrigerator door is opened if it is lower than the predetermined temperature, and maintaining the determination process until it is opened; ; A fifth step of determining whether the temperature difference before and after opening and closing the door is equal to or greater than the set temperature difference if the refrigerator door is opened, and returning to the determination process of the first step if it is not equal to or greater than the set temperature difference; When the determination result of the fifth step is greater than or equal to the set temperature difference, it is characterized in that it comprises a sixth step of expanding the cold air blocking membrane for a set time, driving the refrigeration fan, and returning to the determination process of the first step.

이하, 본 발명에 따른 일실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

도 5는 본 발명을 적용한 동작 흐름도로서, 이에 도시한 바와 같이 냉장고(압축기(미도시)와 냉동 팬(1)을 구동하고, 냉기차단막(10)을 전개)를 운전한 후,냉장실의 온도가 냉장실 설정온도(보통 냉장실은 3℃)에 도달하였는지를 판단하고, 이 판단결과 도달하였으면 냉기차단막(10)을 전폐하고(압축기와 냉동 팬(1)을 계속 구동), 냉동실의 온도가 냉동실 설정 온도(일예로, -18℃)에 도달하였는지를 판단하며, 이 판단결과 냉동실 설정 온도에 도달하였으면 상기 압축기와 냉동 팬(1)의 구동을 정지시킨다. 이후 냉장고의 운전이 정지되면 주위 온도감지센서(미도시)의 감지에 의해 감지되는 주위 온도가 12.5℃보다 높은가를 판단하며, 이 판단결과 높으면 상기 압축기와 냉동 팬(1)의 구동정지 및 냉기차단막(10)의 전폐상태를 유지한다. 만일 상기 판단결과 주위온도가 12.5℃보다 낮으면 냉장고의 문이 열렸는가를 감시하고 있다가 냉장고에 식품의 투입과 인출이 발생하면 온도감지센서(S1, S2)가 이를 감지하여 문의 개폐전후의 온도차가 설정온도차 이상인가를 판단하며, 설정온도차 이상이면 냉장실로 토출되는 냉기를 차단하고 있던 상기 냉기차단막(10)을 전개시키고, 냉동 팬(1)을 구동하여 그때까지 이 냉기차단막(10)에 의해 정체되어 있던 냉기를 아래 부분으로 흘려보내 냉기차단막(10)의 온도를 고내온도 만큼 높힌다.FIG. 5 is an operation flowchart to which the present invention is applied. As shown in FIG. 5, after operating a refrigerator (driving a compressor (not shown) and a freezing fan 1 and developing a cold air blocking membrane 10), the temperature of the refrigerator compartment is increased. It is judged whether the refrigerator compartment set temperature (usually the refrigerator compartment is 3 ° C) has been reached, and if the judgment result is reached, the cold air barrier 10 is closed (continuously driving the compressor and the freezing fan 1), and the temperature of the freezer compartment is the freezer set temperature ( As an example, it is determined whether or not to reach -18 ℃), and if the determination result reaches the freezer compartment temperature, the operation of the compressor and the refrigeration fan (1) is stopped. Thereafter, when the operation of the refrigerator is stopped, it is determined whether the ambient temperature detected by the detection of the ambient temperature sensor (not shown) is higher than 12.5 ° C. If the determination result is high, the driving stop and the cold air blocking membrane of the compressor and the refrigeration fan 1 are high. Maintain the closed state of (10). If the ambient temperature is lower than 12.5 ℃, the result of the determination is to monitor whether the door of the refrigerator is open, and if food is introduced or withdrawn in the refrigerator, the temperature sensor (S1, S2) detects this and the temperature difference before and after opening and closing the door is increased. It is determined whether the temperature difference is higher than the set temperature difference, and when the temperature difference is higher than the set temperature difference, the cold air blocking membrane 10 which is blocking the cold air discharged to the refrigerating chamber is developed, and the refrigeration fan 1 is driven to stagnate by the cold air blocking membrane 10 until then. The cold air flows to the lower portion to raise the temperature of the cold air barrier membrane 10 by the internal temperature of the refrigerator.

상기 냉기차단막(10)의 전개 및 냉동 팬(1)의 구동은 설정된 시간동안 계속 진행되며, 설정시간이 경과되면 자동적으로 해제되어 정상적인 운전조건으로 복귀한다.The development of the cold air blocking membrane 10 and the operation of the refrigeration fan 1 continue for a predetermined time, and when the set time has elapsed, it is automatically released to return to normal operating conditions.

상기 자동적으로 해제되는 시간의 설정은 냉장고의 고내 온도와 투입식품(고온,고습)의 온도가 일정하게 되면 해제되도록 설정하는데, 이는 고내 온도와 투입식품의 온도편차에 의해 식품의 습기가 증발하면서 상대적으로 저온인 냉기차단막이나 유로에 부착, 얼음으로 발생하는 것을 방지하는데 중요한 요소가 된다.The automatic release time is set to be released when the temperature in the refrigerator and the temperature of the food (high temperature and humidity) become constant, which is relatively high as the moisture of the food evaporates due to the temperature deviation of the food and the food. As a result, it is an important factor to prevent the occurrence of ice as it adheres to the low temperature cold air barrier or flow path.

이상에서 설명한 바와 같이 본 발명 냉기조절장치의 결빙방지방법은 주위 온도가 냉장고의 고내 온도보다 낮은 상태에서 냉장고의 운전을 정지하고 있을 때 발생하는 고내 온도차에 의한 냉기차단막 및 냉기 유로의 결빙을 방지하고, 또한 히터를 사용하지 않으므로 원가의 상승을 억제하는 효과가 있다.As described above, the freezing prevention method of the cold air conditioner of the present invention prevents freezing of the cold air blocking membrane and the cold air flow path due to the difference in the internal temperature generated when the operation of the refrigerator is stopped while the ambient temperature is lower than the internal temperature of the refrigerator. In addition, since the heater is not used, there is an effect of suppressing the increase in cost.

Claims (1)

압축기 및 냉동 팬을 구동시키고, 냉기차단막을 전개한 후, 현재 냉장실 온도가 설정된 냉장실 온도에 도달하였는지를 판단하여, 도달할 때까지 그 판단과정을 유지하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 냉기차단막을 전폐한 다음 현재 냉동실 온도가 설정된 냉동실 온도에 도달하였는지를 판단하는 제2 단계와; 상기 제2 단계의 판단결과 도달하지 못하였으면 상기 제1 단계의 판단과정으로 되돌아가고, 도달하였으면 상기 압축기와 냉동 팬의 구동을 정지시킨 다음 온도센서에서 감지한 주위온도가 소정의 온도 이상인가를 판단하는 제3 단계와; 상기 제3 단계의 판단결과 소정의 온도 이상이면 상기 제1 단계의 판단과정으로 되돌아가고, 소정의 온도 이하이면 냉장고 문이 열렸는지를 판단하여, 열릴 때까지 그 판단과정을 유지하는 제4 단계와; 상기 제4 단계의 판단결과 냉장고 물이 열렸으면 문의 개폐전후의 온도차가 설정온도차 이상인가를 판단하여, 설정온도차 이상이 아니면 상기 제1단계의 판단과정으로 되돌아가는 제5 단계와; 상기 제5 단계의 판단결과 설정온도차 이상이면 설정시간 동안 냉기차단막을 전개하고, 냉동 팬을 구동시킨 후, 상기 제1단계의 판단과정으로 되돌아가는 제6 단계로 이루어진 것을 특징으로 하는 냉기조절장치의 결빙방지방법.A first step of driving the compressor and the refrigeration fan, deploying the cold air barrier membrane, determining whether the current refrigerator compartment temperature has reached the set refrigerator compartment temperature, and maintaining the determination process until the refrigerator compartment temperature is reached; A second step of determining whether the current freezer compartment temperature reaches a set freezer compartment temperature after closing the cold air barrier membrane if the determination result of the first stage is reached; If the determination result of the second step has not been reached, the process returns to the determination step of the first step, and when it reaches the determination result, the operation of the compressor and the refrigeration fan is stopped, and it is determined whether the ambient temperature detected by the temperature sensor is above a predetermined temperature. Performing a third step; A fourth step of returning to the determination step of the first step if the determination result of the third step is equal to or higher than a predetermined temperature; and determining whether the refrigerator door is opened if it is lower than the predetermined temperature, and maintaining the determination process until it is opened; ; A fifth step of determining whether the difference in temperature before and after the door opening and closing is greater than or equal to the set temperature difference when the refrigerator water is opened as a result of the determination in the fourth step; If the determination result of the fifth step is greater than the set temperature difference, the cold air blocking film is developed for a predetermined time, and the refrigeration fan is driven, and then the sixth step of returning to the determination process of the first step comprises a sixth step. How to prevent freezing.
KR1019980011268A 1998-03-31 1998-03-31 Method for preventing freezing of damper KR100343679B1 (en)

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Application Number Priority Date Filing Date Title
KR1019980011268A KR100343679B1 (en) 1998-03-31 1998-03-31 Method for preventing freezing of damper
DE19914261A DE19914261B4 (en) 1998-03-31 1999-03-29 A method for preventing the formation of ice on a throttle device in a convection refrigerator with freezer compartment and refrigerator
US09/280,848 US6125641A (en) 1998-03-31 1999-03-30 Method for preventing formation of ice on damper in refrigerator
CN99106107A CN1120973C (en) 1998-03-31 1999-03-31 Method for preventing formation of ice on damper in refrigerator
JP09372799A JP4159172B2 (en) 1998-03-31 1999-03-31 How to prevent icing of dampers for refrigerators

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Publication number Priority date Publication date Assignee Title
KR100520951B1 (en) * 2002-10-21 2005-10-17 엘지전자 주식회사 Fan control method in ice maker having fan assembly

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KR100403027B1 (en) * 2001-08-28 2003-10-23 삼성전자주식회사 Refrigerator and control method thereof
KR100853679B1 (en) * 2002-05-06 2008-08-25 엘지전자 주식회사 Apparatus for temperature control of refrigerator and method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100520951B1 (en) * 2002-10-21 2005-10-17 엘지전자 주식회사 Fan control method in ice maker having fan assembly

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