KR100690903B1 - Low temperature compensation method for refrigerator - Google Patents

Low temperature compensation method for refrigerator Download PDF

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Publication number
KR100690903B1
KR100690903B1 KR1020030083151A KR20030083151A KR100690903B1 KR 100690903 B1 KR100690903 B1 KR 100690903B1 KR 1020030083151 A KR1020030083151 A KR 1020030083151A KR 20030083151 A KR20030083151 A KR 20030083151A KR 100690903 B1 KR100690903 B1 KR 100690903B1
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South Korea
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temperature
refrigerator
optimum storage
compressor
fan
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KR1020030083151A
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Korean (ko)
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KR20050049237A (en
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신현재
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엘지전자 주식회사
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    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02—Refrigerators including a heater
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • 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
    • F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 발명은 냉장고의 저온보상방법에 관한 것으로, 냉장고 주변의 온도가 고내의 식품보관온도보다 저온인 경우에 제상히터와 팬을 이용하여 냉장고내의 온도를 보상함으로써, 냉장고에 저장된 음식물의 최적보관온도의 고하를 막론하고 최적보관온도를 유지할 수 있도록 한 것이다. 이를 위하여 본 발명은 사용자에 의해 운전이 선택되면, 최적보관온도를 설정하여 압축기와 팬을 온시켜 냉장고내로 냉기를 공급하는 과정과; 냉장고 주변의 외기온도와 냉장고내의 온도를 검출하고, 그 외기온도와 최적보관온도를 비교하는 과정과; 상기 비교결과, 외기온도가 최적보관온도보다 높으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 압축기 및 팬을 온 또는 오프시켜 냉기를 공급 또는 차단하는 과정과; 상기 비교결과, 외기온도가 최적보관온도 보다 낮으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 히터를 온시켜 외기온도에 따른 냉장고내 온도의 저온화를 보상하는 과정으로 이루어진다.The present invention relates to a low temperature compensation method of a refrigerator, and when the temperature around the refrigerator is lower than the food storage temperature in the refrigerator, the temperature of the refrigerator is compensated by using a defrost heater and a fan, thereby It is designed to maintain the optimal storage temperature regardless of overhead. To this end, the present invention, if the operation is selected by the user, the process of supplying cold air into the refrigerator by setting the optimum storage temperature to turn on the compressor and the fan; Detecting an outside air temperature around the refrigerator and a temperature inside the refrigerator, and comparing the outside air temperature with an optimum storage temperature; As a result of the comparison, if the outside air temperature is higher than the optimum storage temperature, the process of comparing the high temperature and the upper and lower temperature of the optimum storage temperature and the supply and blocking of cold air by turning on or off the compressor and fan based on the comparison result. and; As a result of the comparison, if the outside air temperature is lower than the optimum storage temperature, and compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, the heater is turned on based on the comparison result to lower the temperature of the refrigerator according to the outside temperature It is made of a process to compensate.

Description

냉장고의 저온보상방법{LOW TEMPERATURE COMPENSATION METHOD FOR REFRIGERATOR} LOW TEMPERATURE COMPENSATION METHOD FOR REFRIGERATOR}

도 1은 종래 직냉식 소형 냉동냉장고의 사이클도.1 is a cycle diagram of a conventional direct cooling small freezer.

도 2는 종래 냉장고의 압축기 운전제어방법을 보인 파형도.Figure 2 is a waveform diagram showing a compressor operation control method of a conventional refrigerator.

도3은 종래 냉장고의 압축기 운전제어방법을 보인 동작흐름도.3 is a flowchart illustrating a compressor operation control method of a conventional refrigerator.

도4는 본 발명의 실시예에 따른 냉장고의 저온보상방법을 보인 동작흐름도.Figure 4 is a flow chart showing the low temperature compensation method of the refrigerator according to an embodiment of the present invention.

도5는 본 발명 냉장고의 저온보상방법을 보인 파형도.Figure 5 is a waveform diagram showing a low temperature compensation method of the present invention refrigerator.

본 발명은 냉장고의 저온보상 방법에 관한 것으로, 특히 냉장고의 주위온도가 저온인 경우에 발생하는 식품의 보관온도 유지의 어려움을 해소하도록 한 냉장고의 저온보상방법에 관한 것이다.The present invention relates to a low-temperature compensation method of a refrigerator, and more particularly to a low-temperature compensation method of a refrigerator to solve the difficulty of maintaining the storage temperature of the food produced when the ambient temperature of the refrigerator is a low temperature.

도 1은 종래 직냉식 소형 냉동냉장고의 사이클도이다.1 is a cycle diagram of a conventional direct cooling small freezer.

압축기(1)에서 토출된 고온고압의 냉매는 압축기(2)를 지나면서 방열이 되고 모세관(3)을 지나면서 감압이 되어 저온저압의 냉매가 된다.The high temperature and high pressure refrigerant discharged from the compressor 1 is radiated while passing through the compressor 2, and is reduced in pressure through the capillary tube 3 to become a low temperature and low pressure refrigerant.

상기 저온저압의 냉매는 먼저 냉동실(4)의 증발기(5)를 지나면서 열을 흡수 하고 다시 냉장실(5)의 증발기(7)를 지나면서 열을 흡수한 후 압축기(1)로 흡입이 된다.The low temperature low pressure refrigerant first absorbs heat while passing through the evaporator 5 of the freezer compartment 4, and then absorbs heat while passing through the evaporator 7 of the refrigerating compartment 5, and is then sucked into the compressor 1.

냉동실에 설치된 냉동용 증발기(6)와 냉장실에 설치된 냉장용 증발기(7)는 모두 직냉판 형태의 증발기이며, 냉동실의 냉동용 증발기(6)는 냉동실의 후면과 도어를 제외한 나머지면(상면과 저면 및 양측면)을 감쌀 수 있는 면적으로 형성되어 있고 점선으로 표시된 부분을 절곡함에 따라 격자형으로 구성되어 냉동실의 상면과 저면 및 양측면을 감싸게 된다.The freezing evaporator 6 installed in the freezer compartment and the refrigeration evaporator 7 installed in the refrigerating compartment are both direct type evaporators. The freezing evaporator 6 of the freezer compartment has the remaining surfaces (upper and bottom) except for the rear and door of the freezer compartment. And both sides) is formed as an area that can be wrapped and is formed in a grid shape by bending the portion indicated by the dotted line to surround the top and bottom and both sides of the freezer compartment.

냉장실의 냉장용 증발기(7)는 냉동실 증발기에 비해 아주 작은 면적으로 형성되어 있고 냉장실의 후면에 부착된다.The refrigerating evaporator 7 of the refrigerating compartment is formed in a very small area compared to the freezer evaporator and is attached to the rear side of the refrigerating compartment.

상기와 같은 직냉식 냉동냉장고에서는 냉장실의 냉장용 증발기(7)가 장착되어 있는 내부벽 표면온도를 감지하여 감지된 온도에 따라 압축기(1)의 운전을 제어하도록 하고 있다.In the direct-cooling freezer as described above, the operation of the compressor 1 is controlled according to the sensed temperature by detecting the surface temperature of the inner wall on which the evaporator 7 for the refrigerating compartment is mounted.

즉, 직냉식 냉동냉장고는 냉동실과 냉장실의 온도가 각각 -18℃와 3℃에서 유지되도록 설계되어 있으며, 냉장실 내부벽에서 감지되는 온도에 따라 압축기(1)의 구동이 온 또는 오프되어 냉동실과 냉장실의 온도를 설정된 온도로 유지시키도록 하고 있다.In other words, the direct-cooling freezer is designed to maintain the temperature of the freezer compartment and the refrigerator compartment at -18 ℃ and 3 ℃, respectively, the temperature of the freezer compartment and the refrigerator compartment is turned on or off according to the temperature detected in the interior wall of the refrigerator compartment To maintain the set temperature.

여기서, 상기 압축기(1)의 운전제어를 도2를 참조하여 설명한다.Here, operation control of the compressor 1 will be described with reference to FIG.

우선, 냉장고 주변의 외기온도가, 냉장고가 정상적으로 동작할 수 있는 30℃라고 가정하고, 냉장고내의 최적보관온도가 10℃이면, 도2의 (a)와 같이 10℃를 중심으로 압축기를 온/오프 시키면서 최적보관온도에 맞게 압축기를 동작시키는데, 이때 냉기를 냉장고내로 공급하기 위하여, 팬도 압축기와 동일하게 동작되고, 제상히터는 압축기의 동작에 상관없이 오프되다가 제상모드가 되면 온된다.First, assuming that the outside air temperature around the refrigerator is 30 ° C. in which the refrigerator can operate normally, and the optimum storage temperature in the refrigerator is 10 ° C., the compressor is turned on / off around 10 ° C. as shown in FIG. While operating the compressor according to the optimum storage temperature, in order to supply the cool air into the refrigerator, the fan is operated in the same manner as the compressor, the defrost heater is turned off regardless of the operation of the compressor is turned on when the defrost mode.

도3은 종래 냉장고의 운전제어방법에 대한 동작흐름도로서, 사용자에 의해, 운전이 선택되면 최적보관온도를 설정하여 압축기와 팬을 온시켜 냉기를 공급하면서, 냉장고의 온도를 검출한다.FIG. 3 is a flowchart illustrating an operation control method of a conventional refrigerator. When an operation is selected by a user, an optimum storage temperature is set to turn on a compressor and a fan to supply cold air while detecting a temperature of the refrigerator.

상기 냉장고의 검출온도를 상기 최적보관온도의 하한온도와 비교하여, 그 고내온도가 최적 보관온도의 하한온도에 도달하면 압축기와 팬을 오프시켜 냉기공급을 차단한다.When the detected temperature of the refrigerator is compared with the lower limit temperature of the optimum storage temperature, when the internal temperature reaches the lower limit temperature of the optimum storage temperature, the compressor and the fan are turned off to cut off the cold air supply.

상기 냉기공급을 차단하면서, 냉장고내의 온도를 검출하여 그 검출온도가 다시 최적보관온도의 상한온도에 도달하면 압축기의 팬을 온시켜 냉기를 공급하는데, 이와같은 동작을 반복 수행하여 냉장고에 저장되는 식품을 보관한다.While blocking the supply of cold air, when the temperature inside the refrigerator is detected and the detected temperature reaches the upper limit of the optimum storage temperature, the fan of the compressor is turned on to supply cold air. The food is stored in the refrigerator by repeating the above operation. Keep it.

만약, 상기 최적보관온도를 10℃를 유지하고자 하는 경우에, 냉장고의 주변온도가 5℃로 내려가게 되면, 도2와 같이 압축기와 팬을 구동하지 않더라도 냉장고내의 온도는 5℃로 내려가게 되어 식품의 보관온도를 유지하지 못하는 문제점이 있다.If the optimal storage temperature is to be maintained at 10 ° C., when the ambient temperature of the refrigerator is lowered to 5 ° C., the temperature in the refrigerator is lowered to 5 ° C. even if the compressor and the fan are not driven as shown in FIG. 2. There is a problem that can not maintain the storage temperature of.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 냉장고 주변의 온도가 고내의 식품보관온도보다 저온인 경우에 제상히터와 팬을 이용하여 냉장고내의 온도를 보상함으로써, 냉장고에 저장된 음식물의 최적보관온도의 고하를 막론하고 최적보관온도를 유지할 수 있도록 한 냉장고의 저온보상방법을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, and when the temperature around the refrigerator is lower than the food storage temperature in the refrigerator, by using a defrost heater and a fan to compensate the temperature in the refrigerator, optimal storage of the food stored in the refrigerator It is an object of the present invention to provide a low temperature compensation method of a refrigerator capable of maintaining an optimal storage temperature regardless of a drop in storage temperature.

상기와 같은 목적을 달성하기 위한 본 발명은, 사용자에 의해 운전이 선택되면, 최적보관온도를 설정하여 압축기와 팬을 온시켜 냉장고내로 냉기를 공급하는 과정과; 냉장고 주변의 외기온도와 냉장고내의 온도를 검출하고, 그 외기온도와 최적보관온도를 비교하는 과정과; 상기 비교결과, 외기온도가 최적보관온도보다 높으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 압축기 및 팬을 온 또는 오프시켜 냉기를 공급 또는 차단하는 과정과; 상기 비교결과, 외기온도가 최적보관온도 보다 낮으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 히터를 온시켜 외기온도에 따른 냉장고내 온도의 저온화를 보상하는 과정으로 수행함을 특징으로 한다.The present invention for achieving the above object, the operation is selected by the user, the process of supplying cold air into the refrigerator by setting the optimum storage temperature to turn on the compressor and the fan; Detecting an outside air temperature around the refrigerator and a temperature inside the refrigerator, and comparing the outside air temperature with an optimum storage temperature; As a result of the comparison, if the outside air temperature is higher than the optimum storage temperature, the process of comparing the high temperature and the upper and lower temperature of the optimum storage temperature and the supply and blocking of cold air by turning on or off the compressor and fan based on the comparison result. and; As a result of the comparison, if the outside air temperature is lower than the optimum storage temperature, and compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, the heater is turned on based on the comparison result to lower the temperature of the refrigerator according to the outside temperature Characterized in that the process to compensate for.

이하, 본 발명에 의한 냉장고의 저온보상방법에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, the operation and effects of the low temperature compensation method of the refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

도4는 본 발명 냉장고의 저온보상방법에 대한 동작 흐름도이다.4 is a flowchart illustrating a low temperature compensation method of the refrigerator of the present invention.

도4에 도시한 바와같이, 본 발명은 사용자에 의해 운전이 선택되면, 최적보관온도를 설정하여 압축기와 팬을 온시켜 냉장고내로 냉기를 공급하는 과정 (SP11 ~SP13)과; 냉장고 주변의 외기온도와 냉장고내의 온도를 검출하고, 그 외기온도와 최적보관온도를 비교하는 과정(SP14,SP15)과; 상기 비교결과, 외기온도가 최적보관온도보다 높으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 압축기 및 팬을 온 또는 오프시켜 냉기를 공급 또는 차단 하는 과정(SP21~SP25)과; 상기 비교결과, 외기온도가 최적보관온도 보다 낮으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 히터를 온시켜 외기온도에 따른 냉장고내 온도의 저온화를 보상하는 과정(SP16~SP20)으로 이루어지며, 이와같은 본 발명의 동작을 설명한다.As shown in Fig. 4, the present invention provides a process (SP11 to SP13) for supplying cold air into a refrigerator by turning on a compressor and a fan by setting an optimum storage temperature when an operation is selected by a user; Detecting outside air temperature around the refrigerator and the inside of the refrigerator, and comparing the outside air temperature with the optimal storage temperature (SP14, SP15); As a result of the comparison, if the outside air temperature is higher than the optimum storage temperature, the process of comparing the high temperature and the upper and lower temperature of the optimum storage temperature and the supply and blocking of cold air by turning on or off the compressor and fan based on the comparison result. (SP21-SP25); As a result of the comparison, if the outside air temperature is lower than the optimum storage temperature, and compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, the heater is turned on based on the comparison result to lower the temperature of the refrigerator according to the outside temperature Comprising a process (SP16 ~ SP20) is made, it will be described the operation of the present invention.

먼저, 사용자에 의해 운전이 선택되면(SP11), 최적보관온도를 설정하여 압축기와 팬을 온시켜 냉장고내로 냉기를 공급한다(SP12,SP13).First, when operation is selected by the user (SP11), the optimum storage temperature is set to turn on the compressor and the fan to supply cold air into the refrigerator (SP12, SP13).

이때, 냉장고 주변의 외기온도와 냉장고내의 온도를 검출하고(SP14), 그 외기온도와 최적보관온도를 비교한다(SP15).At this time, the outside air temperature around the refrigerator and the temperature in the refrigerator are detected (SP14), and the outside air temperature and the optimum storage temperature is compared (SP15).

상기 비교결과(SP15), 외기온도가 최적보관온도보다 높으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 압축기 및 팬을 온 또는 오프시켜 냉기를 공급 또는 차단하는데(SP21~SP25), 즉 고내온도가 최적보관온도의 하한온도에 도달하면 압축기와 팬을 오프시켜 냉기 공급을 차단하고(SP21~SP22), 그 다음 다시 냉장고내의 온도를 검출하여 그 온도가 최적보관온도의 상한온도에 도달하면 압축기와 팬을 온시켜 냉장고내로 냉기를 공급한다 (SP23~SP25).As a result of the comparison (SP15), when the outside air temperature is higher than the optimum storage temperature, it compares with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimal storage temperature, and based on the comparison result, the compressor and the fan are turned on or off to supply cold air or (SP21 ~ SP25), that is, when the internal temperature reaches the lower limit of the optimal storage temperature, the compressor and the fan are turned off to block the supply of cold air (SP21 ~ SP22), and then the temperature in the refrigerator is detected again. When the upper limit of optimum storage temperature is reached, the compressor and fan are turned on to supply cold air into the refrigerator (SP23 ~ SP25).

상기 비교결과(SP15),외기온도가 최적보관온도보다 낮으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 히터를 온시켜 외기온도에 따른 냉장고내의 저온화를 보상하는데(SP16~SP20), 즉, 냉장고내 온도가 최적보관온도의 하한온도에 도달하면 압축기를 오프시키고, 히터와 팬을 온시켜 난기를 냉장고내로 공급한 다음(SP17,SP17), 다시 냉장고내의 온도를 검출하 여, 그 온도가 최적보관온도의 상한온도에 도달하면 히터와 팬을 오프시켜 난기 공급을 차단한다(SP18~SP20).The comparison result (SP15), if the outside temperature is lower than the optimum storage temperature, and compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, the heater is turned on based on the comparison result, the low temperature in the refrigerator according to the outdoor temperature To compensate for the heat (SP16 to SP20), that is, when the temperature in the refrigerator reaches the lower limit of the optimal storage temperature, the compressor is turned off, the heater and the fan are turned on, and the warmer is supplied into the refrigerator (SP17, SP17). When the temperature in the refrigerator is detected and the temperature reaches the upper limit of the optimum storage temperature, the heater and the fan are turned off to cut off the supply of warm air (SP18 to SP20).

이후,상술한 동작을 반복 수행하여 냉장고주변의 저온온도에 따른 냉장고내의 저온화를 보상한다.Thereafter, the above operation is repeated to compensate for the low temperature in the refrigerator according to the low temperature of the refrigerator.

도5를 참조하여 본 발명을 설명하면, 냉장고 주변의 외기온도가, 냉장고가 정상적으로 동작할 수 있는 30℃라고 가정하고, 냉장고내의 최적보관온도가 10℃이면, 도5의 (a)와 같이 10℃를 중심으로 압축기를 온/오프 시키면서 최적보관온도에 맞게 압축기를 동작시키는데, 이때 냉기를 냉장고내로 공급하기 위하여, 팬도 압축기와 동일하게 동작된다.Referring to FIG. 5, when the outdoor air temperature around the refrigerator is assumed to be 30 ° C. at which the refrigerator can operate normally, and the optimum storage temperature in the refrigerator is 10 ° C. The compressor is operated according to the optimum storage temperature while the compressor is turned on and off, and the fan is operated in the same manner as the compressor to supply cold air into the refrigerator.

만약, 냉장고 주변의 외기온도가 5℃이면,냉장고내의 온도가 최적보관온도의 상한온도에 도달하여도 압축기를 항상 오프시키고, 냉장고내의 오노가 최적온도의 하한온도에 도달하면 압축기를 온시키는 대신에 히터를 온시켜 오히려 냉장고내에 난기를 공급하여 냉장고내의 온도가 최적보관온도를 유지하도록 한다.If the outside air temperature around the refrigerator is 5 ° C, the compressor is always turned off even when the temperature in the refrigerator reaches the upper limit temperature of the optimum storage temperature. Instead, the compressor is turned on when the ono temperature in the refrigerator reaches the lower limit temperature of the optimum temperature. The heater is turned on to supply the warmth in the refrigerator so that the temperature in the refrigerator maintains the optimal storage temperature.

다시 말해서, 본 발명은 냉장고 주변의 온도가 고내의 식품보관온도보다 저온인 경우에 제상히터와 팬을 이용하여 냉장고내의 온도를 보상함으로써, 냉장고에 저장된 음식물의 최적보관온도의 고하를 막론하고 항상 최적보관온도를 유지한다.In other words, when the temperature around the refrigerator is lower than the food storage temperature in the refrigerator, the present invention compensates the temperature in the refrigerator by using a defrost heater and a fan, so that the optimum storage temperature of food stored in the refrigerator is always optimized. Maintain storage temperature.

상기 본 발명의 상세한 설명에서 행해진 구체적인 실시 양태 또는 실시예는 어디까지나 본 발명의 기술 내용을 명확하게 하기 위한 것으로 이러한 구체적 실시예에 한정해서 협의로 해석해서는 안되며, 본 발명의 정신과 다음에 기재된 특허 청구의 범위내에서 여러가지 변경 실시가 가능한 것이다.Specific embodiments or examples made in the detailed description of the present invention are intended to clarify the technical contents of the present invention to the extent that they should not be construed as limited to these specific embodiments and should not be construed in consultation. Various changes can be made within the scope of.

이상에서 상세히 설명한 바와같이 본 발명은, 냉장고 주변의 온도가 고내의 식품보관온도보다 저온인 경우에 제상히터와 팬을 이용하여 냉장고내의 온도를 보상함으로써, 냉장고에 저장된 음식물의 최적보관온도의 고하를 막론하고 항상 최적보관온도를 유지하는 효과가 있다. As described in detail above, the present invention compensates the temperature of the refrigerator stored by using a defrost heater and a fan when the temperature around the refrigerator is lower than the food storage temperature in the refrigerator. Regardless, there is always an effect of maintaining the optimum storage temperature.

Claims (3)

사용자에 의해 운전이 선택되면, 최적보관온도를 설정하여 압축기와 팬을 온시켜 냉장고내로 냉기를 공급하는 과정과;If operation is selected by the user, setting an optimum storage temperature to turn on the compressor and the fan to supply cold air into the refrigerator; 냉장고 주변의 외기온도와 냉장고내의 온도를 검출하고, 그 외기온도와 최적보관온도를 비교하는 과정과;Detecting an outside air temperature around the refrigerator and a temperature inside the refrigerator, and comparing the outside air temperature with an optimum storage temperature; 상기 비교결과, 외기온도가 최적보관온도보다 높으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 압축기 및 팬을 온 또는 오프시켜 냉기를 공급 또는 차단하는 과정과;As a result of the comparison, if the outside air temperature is higher than the optimum storage temperature, the process of comparing the high temperature and the upper and lower temperature of the optimum storage temperature and the supply and blocking of cold air by turning on or off the compressor and fan based on the comparison result. and; 상기 비교결과, 외기온도가 최적보관온도 보다 낮으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 히터를 온시켜 외기온도에 따른 냉장고내 온도의 저온화를 보상하는 과정으로 수행함을 특징으로 하는 냉장고의 저온보상방법.As a result of the comparison, if the outside air temperature is lower than the optimum storage temperature, and compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, the heater is turned on based on the comparison result to lower the temperature of the refrigerator according to the outside temperature Low temperature compensation method of the refrigerator, characterized in that performed as a process to compensate. 제1 항에 있어서, 외기온도가 최적보관온도 보다 낮으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 히터를 온시켜 외기온도에 따른 냉장고내의 저온화를 보상하는 과정은,According to claim 1, If the outside air temperature is lower than the optimum storage temperature, compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, and based on the comparison result to lower the temperature in the refrigerator according to the outdoor air temperature The process of rewarding 냉장고내 온도가 최적보관온도의 하한온도에 도달하면 압축기를 오프시키고, 히터와 팬을 온시켜 난기를 냉장고내로 공급하는 단계와;Turning off the compressor, turning on the heater and the fan when the temperature in the refrigerator reaches the lower limit temperature of the optimum storage temperature, and supplying warm eggs to the refrigerator; 냉장고내의 온도를 검출하여, 그 온도가 최적보관온도의 상한온도에 도달하 면 히터와 팬을 오프시켜 난기 공급을 차단하는 단계로 이루어진 것을 특징으로 하는 냉장고의 저온보상방법.Detecting the temperature in the refrigerator and turning off the heater and the fan when the temperature reaches the upper limit of the optimal storage temperature, thereby blocking supply of warm air. 제1 항에 있어서, 외기온도가 최적보관온도보다 높으면, 고내온도와 최적보관온도의 상한온도 및 하한온도와 비교하고, 그 비교결과에 근거하여 압축기 및 팬을 온 또는 오프시켜 냉기를 공급 또는 차단하는 과정은,According to claim 1, If the outside air temperature is higher than the optimum storage temperature, compared with the upper limit temperature and the lower limit temperature of the high internal temperature and the optimum storage temperature, and based on the comparison result, the compressor and the fan is turned on or off to supply or block the cold air. The process is 고내온도가 최적보관온도의 하한온도에 도달하면 압축기와 팬을 오프시켜 냉기 공급을 차단하는 단계와;Shutting off the cold air supply by turning off the compressor and the fan when the internal temperature reaches the lower limit temperature of the optimum storage temperature; 냉장고내의 온도를 검출하여 그 온도가 최적보관온도의 상한온도에 도달하면 압축기와 팬을 온시켜 냉장고내로 냉기를 공급하는 단계로 이루어진 것을 특징으로 하는 냉장고의 저온보상방법. Detecting the temperature in the refrigerator, and when the temperature reaches the upper limit of the optimum storage temperature, turning on the compressor and the fan to supply cold air into the refrigerator.
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KR100196944B1 (en) 1997-05-16 1999-06-15 윤종용 Temperature control method of a refrigerator
KR100213149B1 (en) 1997-08-30 1999-08-02 윤종용 A method for controlling the interior temperature of a refrigerator
JP2003004355A (en) 2001-06-20 2003-01-08 Fujitsu General Ltd Refrigerator
KR20040032434A (en) * 2002-10-09 2004-04-17 주식회사 대우일렉트로닉스 The apparatus for controlling temperature of a refrigerator
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KR100196944B1 (en) 1997-05-16 1999-06-15 윤종용 Temperature control method of a refrigerator
KR100213149B1 (en) 1997-08-30 1999-08-02 윤종용 A method for controlling the interior temperature of a refrigerator
JP2003004355A (en) 2001-06-20 2003-01-08 Fujitsu General Ltd Refrigerator
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