KR100259923B1 - Method for preventing freezing of reg with a damper - Google Patents

Method for preventing freezing of reg with a damper Download PDF

Info

Publication number
KR100259923B1
KR100259923B1 KR1019970065571A KR19970065571A KR100259923B1 KR 100259923 B1 KR100259923 B1 KR 100259923B1 KR 1019970065571 A KR1019970065571 A KR 1019970065571A KR 19970065571 A KR19970065571 A KR 19970065571A KR 100259923 B1 KR100259923 B1 KR 100259923B1
Authority
KR
South Korea
Prior art keywords
cold air
temperature
refrigerator
compartment
refrigerating compartment
Prior art date
Application number
KR1019970065571A
Other languages
Korean (ko)
Other versions
KR19990047241A (en
Inventor
김석노
Original Assignee
구자홍
엘지전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019970065571A priority Critical patent/KR100259923B1/en
Publication of KR19990047241A publication Critical patent/KR19990047241A/en
Application granted granted Critical
Publication of KR100259923B1 publication Critical patent/KR100259923B1/en

Links

Images

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

Abstract

PURPOSE: An anti-icing method is provided to protect the cooling air baffle from freezing due to the temperature difference in the refrigerator, and reduce cost by eliminating the necessity of using a heater for preventing super-cooling of foodstuff. CONSTITUTION: A method comprises the steps of turning on the compressor and fan and opening the cooling air baffle if the temperature of refrigerating compartment is higher than the preset temperature; closing the cooling air baffle if the temperature of refrigerating compartment is lower than the preset temperature; turning off the compressor and fan and opening the cooling air baffle if the freezing compartment temperature is lower than the preset temperature; and turning on the fan so as to discharge cooling air to the refrigerating compartment, if the difference between temperatures in the refrigerating compartment measured before and after opening the refrigerator door, respectively is higher than the preset temperature difference.

Description

냉장고 냉기조절장치의 결빙방지방법{METHOD FOR PREVENTING FREEZING OF REG WITH A DAMPER}TECHNICAL FOR PREVENTING FREEZING OF REG WITH A DAMPER}

본 발명은 냉장고 냉기조절장치의 결빙방지방법에 관한 것으로, 특히 냉장고에 있어서 주위 온도가 고온이고, 습도가 높을때나 고온고습의 식품부하를 고내에 투입하였을 때 온도차에 의하여 냉기조절장치인 댐퍼 표면에 습기가 부착되어 운전시 결빙되는 것을 방지하여 댐퍼의 오동작 및 과냉 현상을 방지하는 냉장고 냉기조절장치의 결빙방지방법에 관한 것이다.The present invention relates to a method for preventing freezing of a refrigerator air conditioner. In particular, a surface of a damper as a device for controlling a cold air due to a temperature difference when an ambient temperature is high in a refrigerator, when humidity is high, or when a food load of high temperature and high humidity is introduced into the refrigerator. The present invention relates to a method of preventing freezing of a refrigerator air conditioner to prevent moisture from adhering to freezing during operation and preventing a damper from malfunctioning and overcooling.

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)을 가진 냉기조절장치(Damper, 2)로 냉장실 전체에 냉기를 공급하나, 필요에 따라서는 2개의 냉기차단막을 가진 냉기조절장치로 중칸과 하칸의 측벽에 온도감지센서를 부착하고, 그 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) are attached to the left, right or rear wall of the refrigerating compartment, and in most cases, a cold air conditioner (Damper 2) having one baffle to supply cold air to the entire refrigerating compartment. Therefore, it is a cold air conditioner with two cold air blocking membranes, and a temperature sensor is attached to the side walls of the middle compartment and the hakan, and the temperature sensor of each cold air conditioner controls the cold air barriers to control the temperature of the middle compartment and the lower compartment. .

냉장실의 온도가 설정된 온도(보통 3℃)에 도달하여 냉장고의 운전이 정지하였을 때 냉장실에 고온고습의 식품부하를 투입하거나, 냉장실의 사용이 빈번한 여름철에 냉장실 문을 열어 고온고습의 외기가 냉장실로 유입되었을 때 고내의 온도차에 의해 고내온도보다 항상 상대적으로 낮은 온도상태에 있는 냉기차단막의 표면이나 주위 구조물에 습기가 부착되어 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 ° C) and the operation of the refrigerator stops, a food load of high temperature and high humidity is put into the fridge, or the door of the fridge is opened in the summer season when the fridge is frequently used. When introduced, moisture adheres to the surface or surrounding structure of the cold air barrier membrane, which is always at a temperature lower than the internal temperature due to the temperature difference in the high temperature, thereby forming water droplets, and the operation of the refrigerator is started to operate at low temperature (usually -18 ° C). When cold air 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 냉동 팬(1)이 구동되고, 냉기조절장치(2)의 냉기차단막이 전개되면 냉동실의 냉기가 상기 냉기조절장치(2)를 통해 냉장실에 유입되므로 그 냉장실의 온도가 하강되고, 이때 냉장실의 온도가 설정온도(보통 3℃)에 도달하였는지를 판단하며, 통상 냉장실의 온도가 냉장실 설정온도에 도달하는 것이 냉동실의 온도가 냉동실 설정온도에 도달하는 것보다 빠르며, 이 때문에 냉장실의 온도가 만족되면 상기 냉기조절장치(2)의 냉기차단막이 전폐되어 냉장실로 토출되던 냉기가 차단된다. 이와같은 상태에서 냉동실의 온도를 만족시키기 위해 냉장고가 운전하는 동안 저온의 냉기가 냉기조절장치(2)의 냉기차단막을 지속적으로 냉각시켜 그 냉기차단막의 표면 및 주위의 온도를 저온으로 유지시키며, 이는 냉기가 정체되어 있어 유동이 없기 때문이다.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 FIG. 3, the compressor (not shown) and the refrigeration fan (1) is driven, the cold air conditioner When the cold air barrier of (2) is developed, the cold air of the freezer compartment flows into the refrigerating compartment through the cold air conditioner (2), and thus the temperature of the refrigerating compartment is lowered, and it is determined whether the temperature of the refrigerating compartment has reached the set temperature (usually 3 ° C). In general, the temperature of the refrigerating compartment reaching the refrigerating chamber set temperature is faster than that of the freezer compartment reaching the freezing chamber set temperature. Therefore, when the temperature of the refrigerating chamber is satisfied, the cold air blocking membrane of the cold air conditioner 2 is completely closed, The cold air discharged to the air is cut off. In this state, in order to satisfy the temperature of the freezer compartment, low temperature cold air continuously cools the cold air blocking film of the cold air conditioner 2 while the refrigerator is in operation, thereby keeping the surface and the surrounding temperature of the cold air blocking film at a low temperature. This is because cold air is stagnant and there is no flow.

상기와 같이 종래의 기술에 있어서는 냉장실의 온도가 설정된 온도(보통 3℃)에 도달하여 냉장고의 운전이 정지하였을 때 냉장실에 고온고습의 식품부하를 투입하거나, 냉장실의 사용이 빈번한 여름철에 냉장실 문을 열어 고온고습의 외기가 냉장실로 유입되었을때 고내의 온도차에 의해 고내온도보다 항상 상대적으로 낮은 온도상태에 있는 냉기조절장치의 냉기차단막의 표면이나 주위 구조물에 착상하여 물방울이 형성됨으로써, 냉장고의 운전이 개시되어 저온의 냉기가 토출되면 도4에 도시된 바와같이 상기 냉기차단막의 표면에 형성된 물방울이 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 conventional art, when the temperature of the refrigerating compartment reaches a set temperature (usually 3 ° C.) and the operation of the refrigerator is stopped, a food compartment of a high temperature and high humidity is put into the refrigerating compartment, or the refrigerating compartment door is opened in summer when the refrigerating compartment is frequently used. When the open air of high temperature and high humidity flows into the refrigerating chamber, water droplets are formed on the surface or surrounding structure of the cold air blocking membrane of the cold air conditioner, which is relatively lower than the inside temperature due to the temperature difference in the high temperature. When the low temperature cold air is discharged, as shown in FIG. 4, water droplets formed on the surface of the cold air blocking membrane are frozen with ice, and thus the cold air discharged into the refrigerating chamber is not controlled. In addition, by attaching a heater to solve this problem, the cost increases as much There was.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 창안한 것으로, 냉장고의 운전이 정지하였을 때 냉장실에 고온고습의 식품부하를 투입하거나, 냉장실의 사용이 빈번한 여름철에 고온고습의 외기가 냉장실로 유입되면 이를 온도감지센서가 감지하게 하고, 이 감지한 온도와 냉장실 문의 개폐전의 온도차가 평상시의 냉장실문 개폐전후에 따른 온도차를 감안하여 설정한 설정온도차 이상인 경우 냉동 팬을 구동시켜 냉기를 냉기조절장치를 통해 냉장실로 토출하게 함으로써, 유로내 냉기유동을 주어 온도차에 의한 냉기조절장치의 냉기차단막에서의 결빙을 방지할 수 있게한 냉장고 냉기조절장치의 결빙방지 방법을 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the above-mentioned conventional problems, and when the operation of the refrigerator is stopped, the food load of high temperature and high humidity is put into the refrigerating chamber, or the outdoor air of high temperature and high humidity is used in the summer season when the refrigerator is frequently used. If the temperature sensor is detected, the temperature sensor detects it.If the temperature difference between the detected temperature and the opening / closing of the refrigerating compartment door is more than the set temperature difference considering the normal temperature difference between the opening and closing of the refrigerating door, the refrigeration fan is driven to control the cold air. It is an object of the present invention to provide a method of preventing freezing of a refrigerator air conditioner, by discharging it into a refrigerating chamber through an apparatus, thereby providing freezing air flow in a flow path to prevent freezing of the cold air blocking membrane of the cold air conditioner.

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 냉기조절장치의 동작 제어 흐름도.Figure 3 is a flow chart of the operation of the conventional air conditioner.

도 4는 종래 냉기차단막과 주위의 결빙 현상을 보인 예시도.Figure 4 is an exemplary view showing a freezing phenomenon between the conventional cold air barrier membrane.

도 5는 본 발명을 적용한 동작 흐름도.5 is an operation flowchart to which the present invention is applied.

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

1 : 냉동 팬 2 : 냉기조절장치1: refrigeration fan 2: cold air conditioner

3 : 증발기 S1,S2 : 온도감지센서3: evaporator S1, S2: temperature sensor

이와 같은 목적을 달성하기 위한 본 발명은, 냉장고의 냉기조절방법에 있어서, 냉장실 온도가 냉장실 설정온도를 만족하여 냉기조절장치의 냉기차단막을 전폐하고 냉동실온도가 냉동실 설정온도를 만족하여 압축기 및 냉동팬의 구동을 정지하였을 때 상기 냉기조절장치의 냉기차단막을 전개시키고, 냉장실 문의 개폐전후의 냉장실의 온도차가 평상시 냉장실문 개폐전후에 따른 설정온도차 이상인 경우 상기 냉동 팬을 구동시켜 냉기를 상기 냉장실로 토출하게 함으로써, 유로내 냉기유동을 주는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a method for controlling a cold air in a refrigerator, in which a refrigerator compartment temperature satisfies a refrigerator compartment set temperature so as to close the cold air blocking membrane of the refrigerator control apparatus and a freezer compartment temperature satisfies the freezer compartment set temperature. When the operation of the refrigerator is stopped, the cold air blocking membrane of the cold air control device is developed, and if the temperature difference between the refrigerator compartment before and after the opening and closing of the refrigerating compartment door is higher than the set temperature difference according to the normal opening and closing of the refrigerating compartment door, the refrigeration fan is driven to discharge the cold air into the refrigerating compartment. Thus, it is characterized in that the flow of cold air in the flow path.

이하, 본 발명에 따른 실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도5는 본 발명을 적용한 동작 흐름도로서, 이에 도시한 바와 같이 냉장실의 온도가 냉장실 설정온도(일예로, 3℃)에 도달하지 못하면 냉장고를 운전하며 즉, 압축기와 냉동 팬(1)을 구동하고, 냉기조절장치(2)의 냉기차단막을 전개하며, 이와같이 운전하여 냉장실의 온도가 냉장실 설정온도에 도달하면 상기 냉기조절장치(2)의 냉기차단막을 전폐하고, 이후 냉동실의 온도가 냉동실 설정 온도에 도달할때까지 상기 압축기와 냉동 팬(1)을 계속 구동하다가 그 냉동실 설정 온도에 도달하면 상기 압축기와 냉동 팬(1)의 구동을 정지시켜 냉장고의 운전을 중지한다.5 is an operation flowchart to which the present invention is applied. As shown in FIG. 5, when the temperature of the refrigerator compartment does not reach the refrigerator compartment set temperature (eg, 3 ° C.), the refrigerator is operated, that is, the compressor and the refrigeration fan 1 are driven. When the temperature of the refrigerating chamber reaches the refrigerating chamber set temperature, the cold air blocking membrane of the cold air regulating apparatus 2 is completely closed, and then the temperature of the freezer compartment is set to the freezing chamber set temperature. The compressor and the freezing fan 1 continue to be driven until they reach the freezer compartment, and when the freezing chamber set temperature is reached, the compressor and the freezing fan 1 are stopped to stop the operation of the refrigerator.

이와같이 냉장고의 운전이 정지하면 냉장실로 토출되는 냉기를 차단하고 있던 상기 냉기조절장치(2)의 냉기차단막을 전개하고, 이에따라 그때까지 상기 냉기조절장치(2)의 냉기차단막에 의해 정체되어 있던 냉기를 아래 부분의 냉장실로 흘려보내, 일정시간 경과후 냉기조절장치(2)의 냉기차단막의 온도가 냉장실의 온도와 동일하게 된다. 만일 이때(냉장고의 운전을 정지하고 있을 때) 냉장고에 식품의 투입과 인출이 발생하면 온도감지센서가 이를 감지하여 냉장실 문의 개폐전후의 온도차를 계산하고, 그 온도차가 평상시 냉장실문 개폐전후에 따른 설정온도차 이상인가를 비교 판별한다. 여기서 상기 설정온도차는 냉장실에 고온고습이 입력되지 않는 평상상태에서 냉장실문 개폐전후에 따른 온도차를 시험적으로 반복측정하여, 평균온도차를 구하고 그 평균온도차를 근거로 소정이상의 값으로 설정한 것이다. 상기 비교판별결과 냉장실 문의 개폐전후의 온도차가 설정온도차 이상이면 냉동 팬(1)을 구동하여 냉기를 토출시켜 유로내 냉기유동을 주며, 냉장고가 다시 운전을 시작하면 정상적인 운전조건으로 돌아간다. 이와같이 정상적인 운전조건으로 돌아가 냉장실온도가 냉장실 설정온도를 만족하게 될 때 상기 냉기조절장치(2)의 냉기차단막을 전폐한다.In this way, when the operation of the refrigerator stops, the cold air blocking film of the cold air conditioner 2 which has blocked the cold air discharged to the refrigerating chamber is developed, and thus the cold air that has been stagnated by the cold air blocking film of the cold air conditioner 2 has been developed. The temperature of the cold air barrier membrane of the cold air conditioner 2 becomes equal to the temperature of the refrigerator compartment after a certain period of time. If at this time (while the operation of the refrigerator is stopped), food input and withdrawal occurs in the refrigerator and the temperature sensor detects this and calculates the temperature difference before and after the opening and closing of the refrigerating compartment door, and sets the temperature difference according to the normal opening and closing of the refrigerating compartment door. Compare and determine if the temperature difference is abnormal. Here, the set temperature difference is obtained by repeatedly measuring the temperature difference according to the opening and closing of the refrigerating compartment door in a normal state where high temperature and high humidity is not input to the refrigerating compartment, obtaining an average temperature difference, and setting it to a predetermined value or more based on the average temperature difference. As a result of the comparison, if the temperature difference before and after the opening and closing of the refrigerating compartment door is greater than or equal to the set temperature difference, the refrigeration fan 1 is driven to discharge cold air to provide cold air flow in the flow path, and when the refrigerator starts operation again, the operation returns to normal operation conditions. In this way, when the refrigerating chamber temperature satisfies the refrigerating chamber set temperature, the cold air blocking membrane of the cold air conditioner 2 is completely closed.

이상에서 설명한 바와 같이 본 발명 냉기조절장치의 결빙방지방법은 냉장고의 운전을 정지하고 있을 때 발생하는 고내 온도차에 의한 냉기차단막의 결빙을 방지하고, 또한 히터를 사용하지 않으므로 원가의 상승을 억제하는 효과가 있다.As described above, the method of preventing freezing of the air conditioner of the present invention prevents the freezing of the cold air blocking membrane due to the difference in temperature generated when the refrigerator is stopped, and also suppresses the increase in cost since no heater is used. There is.

Claims (1)

냉장고의 냉기조절방법에 있어서, 냉장실 온도가 냉장실 설정온도를 만족할 때 냉기 조절장치의 냉기차단막을 전폐하고, 이후 냉동실온도가 냉동실 설정온도를 만족할 때 압축기 및 냉동팬의 구동을 정지한 후 상기 냉기조절장치의 냉기차단막을 전개시키며, 냉장실 문의 개폐전후의 냉장실의 온도차가 평상시 냉장실문 개폐전후에 따른 설정온도차 이상인 경우 상기 냉동 팬을 구동시켜 냉기를 상기 냉장실로 토출하게 하여 유로내 냉기유동을 주는 것을 특징으로 하는 냉장고 냉기조절장치의 결빙방지방법.In the cold air control method of the refrigerator, when the refrigerator compartment temperature satisfies the refrigerator compartment set temperature, the cold air blocking membrane of the cold air conditioner is completely closed, and when the freezer compartment temperature satisfies the freezer compartment temperature, the compressor and the freezer fan are stopped and then the cold air regulation is performed. It develops a cold air barrier of the device, and when the temperature difference of the refrigerating compartment before and after opening and closing the refrigerating compartment door is more than the set temperature difference according to the normal opening and closing of the refrigerating compartment door, the refrigeration fan is driven to discharge cold air into the refrigerating compartment to provide cold air flow in the flow path. How to prevent freezing of refrigerator cold air conditioner.
KR1019970065571A 1997-12-03 1997-12-03 Method for preventing freezing of reg with a damper KR100259923B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970065571A KR100259923B1 (en) 1997-12-03 1997-12-03 Method for preventing freezing of reg with a damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970065571A KR100259923B1 (en) 1997-12-03 1997-12-03 Method for preventing freezing of reg with a damper

Publications (2)

Publication Number Publication Date
KR19990047241A KR19990047241A (en) 1999-07-05
KR100259923B1 true KR100259923B1 (en) 2000-06-15

Family

ID=19526331

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970065571A KR100259923B1 (en) 1997-12-03 1997-12-03 Method for preventing freezing of reg with a damper

Country Status (1)

Country Link
KR (1) KR100259923B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9970699B2 (en) 2013-08-26 2018-05-15 Whirlpool Corporation Combined refrigerator/freezer appliances with dampers having ice prevention treatments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9970699B2 (en) 2013-08-26 2018-05-15 Whirlpool Corporation Combined refrigerator/freezer appliances with dampers having ice prevention treatments

Also Published As

Publication number Publication date
KR19990047241A (en) 1999-07-05

Similar Documents

Publication Publication Date Title
US8726680B2 (en) Electronic refrigeration control system including a variable speed compressor
US5355686A (en) Dual temperature control of refrigerator-freezer
EP1857752B1 (en) Cooler and refrigerator
CA2365747C (en) Deterministic refrigerator defrost method and apparatus
JP4159172B2 (en) How to prevent icing of dampers for refrigerators
US20100050663A1 (en) Ice producing method
CN107044756B (en) The anti-freeze control method of air door and refrigerator
US5187941A (en) Method for controlling a refrigerator in low ambient temperature conditions
AU2014303819A1 (en) Refrigerator
US6105377A (en) Air curtain fan driving device and method for a refrigerator
JP2008057919A (en) Refrigerator
KR100259923B1 (en) Method for preventing freezing of reg with a damper
JP3541149B2 (en) refrigerator
KR100343679B1 (en) Method for preventing freezing of damper
KR20010037545A (en) Controll method of defrost period for refrigerator and defrost device therefor
KR0169616B1 (en) Temperature control method and device of a refrigerator
JP2001263912A (en) Refrigerator
KR20050023788A (en) A temperature control apparatus of refrigerator
KR100364991B1 (en) Apparatus and method for preventing freezing of damper of refrigerator
KR100254412B1 (en) Control method for cooling air
JP2563696B2 (en) Refrigerator controller
KR100366500B1 (en) Damper control method of refrigerator
KR100260315B1 (en) Damper of a refrigerator
JPH10339540A (en) Freezer and refrigerator
CN115325771A (en) Self-adjusting control system and control method for refrigerating temperature of refrigerator

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20050307

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee