KR100234110B1 - Independent cooling type refrigerator and controlling method of thermal thereof - Google Patents

Independent cooling type refrigerator and controlling method of thermal thereof Download PDF

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Publication number
KR100234110B1
KR100234110B1 KR1019970025230A KR19970025230A KR100234110B1 KR 100234110 B1 KR100234110 B1 KR 100234110B1 KR 1019970025230 A KR1019970025230 A KR 1019970025230A KR 19970025230 A KR19970025230 A KR 19970025230A KR 100234110 B1 KR100234110 B1 KR 100234110B1
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South Korea
Prior art keywords
evaporator
temperature
compartment
freezer
refrigerator
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KR1019970025230A
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Korean (ko)
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KR19990001784A (en
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정성욱
유한주
김재인
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윤종용
삼성전자주식회사
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Priority to KR1019970025230A priority Critical patent/KR100234110B1/en
Priority to JP10170391A priority patent/JPH1144474A/en
Priority to DE19827038A priority patent/DE19827038A1/en
Priority to CN98102969A priority patent/CN1202612A/en
Publication of KR19990001784A publication Critical patent/KR19990001784A/en
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Publication of KR100234110B1 publication Critical patent/KR100234110B1/en

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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
    • 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
    • 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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • 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
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • 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
    • F25D2700/10—Sensors measuring the temperature of the evaporator

Abstract

본 발명은 압축기와, 냉동실증발기 및 냉장실증발기와, 상기 각 증발기에서 발생된 냉기를 냉동실 및 냉장실에 각각 송풍하는 냉동실팬 및 냉장실팬을 구비한 독립냉각방식 냉장고에 관한 것으로서, 상기 냉동실증발기 및 상기 냉장실증발기의 온도를 각각 검출하는 냉동실증발기 온도센서 및 냉장실증발기 온도센서와; 상기 냉동실증발기 온도센서에 의해 검출된 상기 냉동실증발기의 온도가 소정의 냉동실 상한온도 이상일 때 상기 압축기 및 상기 냉동실팬의 동작이 개시되고, 상기 냉동실증발기의 온도가 소정의 냉동실 하한온도 이하일 때 상기 압축기 및 상기 냉동실팬의 동작이 중단되도록 제어하는 제어부를 포함한다. 이에 의해, 냉동실내 온도의 제어를 적절히 유지하면서 온도센서의 수를 줄임으로써 제조비용을 절감할 수 있다.The present invention relates to an independent refrigerator type refrigerator including a compressor, a freezer compartment evaporator and a refrigerator compartment evaporator, and a freezer compartment fan and a refrigerator compartment fan which respectively blow cool air generated in each evaporator to a freezer compartment and a refrigerator compartment. A freezer compartment evaporator temperature sensor and a refrigerator compartment evaporator temperature sensor respectively detecting the temperature of the evaporator; When the temperature of the freezer compartment evaporator detected by the freezer evaporator temperature sensor is above a predetermined freezer upper limit temperature, the operation of the compressor and the freezer compartment is started, and when the temperature of the freezer evaporator is below a predetermined freezer lower limit temperature, the compressor and A control unit for controlling the operation of the freezer compartment fan is stopped. Thereby, manufacturing cost can be reduced by reducing the number of temperature sensors, maintaining appropriately control of the temperature in a freezer compartment.

Description

독립냉각방식 냉장고 및 그 온도제어방법Independent cooling refrigerator and temperature control method

본 발명은 독립냉각방식 냉장고 및 그 온도제어방법에 관한 것으로서, 특히 온도센서의 수를 줄이면서 적절한 실내 온도제어가 가능한 독립냉각방식 냉장고 및 그 온도제어방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an independent cooling refrigerator and a temperature control method thereof. More particularly, the present invention relates to an independent cooling refrigerator and a temperature control method capable of appropriately controlling indoor temperature while reducing the number of temperature sensors.

일반적인 냉장고는 비교적 저온의 냉동실과 비교적 고온의 냉장실을 가지며, 이들 냉동실과 냉장실내에 수용된 음식물을 냉각하기 위한 냉동시스템을 구비한다. 독립냉각방식 냉장고의 냉동시스템은, 냉매를 압축하는 압축기와, 압축기로부터의 냉매를 응축하는 응축기 및 응축기로부터의 냉매를 증발시켜 냉동실 및 냉장실로 각각 공급되는 냉기를 발생하는 냉동실증발기 및 냉장실증발기로 이루어지며, 생성된 냉기는 냉동실팬 및 냉장실팬에 의해 각 실내로 공급된다.A typical refrigerator has a relatively low temperature freezer compartment and a relatively high temperature refrigerating compartment, and includes a freezing system for cooling food contained in the freezer compartment and the refrigerating compartment. The refrigeration system of the independent refrigeration type refrigerator comprises a compressor for compressing a refrigerant, a condenser for condensing the refrigerant from the compressor, and a freezer evaporator and a refrigerator compartment evaporator for evaporating the refrigerant from the condenser and generating cold air respectively supplied to the freezer compartment and the refrigerating compartment. The generated cold air is supplied to each room by the freezer compartment fan and the refrigerating compartment fan.

냉동실증발기 및 냉장실증발기에서 발생한 냉기가 지속적으로 냉동실 및 냉장실에 공급될 경우 각 실내가 과냉될 수 있기 때문에, 각 실내에 온도센서를 설치하고 이들 온도센서로부터의 검출신호에 기초하여 압축기 및 각 송풍팬을 제어한다. 이러한 제어는 써모스탯에 의한 기계적 방법에 의해 행하여지기도 하지만, 근래에는 도 5에 도시된 바와 같이, 마이컴(50)을 사용하여 냉동실내에 설치된 온도센서(52)로부터의 검출온도가 소정이하일 때 압축기(34) 및 냉동실팬(36)의 작동을 정지시켜 냉기공급을 중단하고, 검출온도가 다시 일정이상 상승하면 압축기(34)와 냉동실팬(36)을 재가동시켜 냉기를 공급한다. 또한, 냉장실 온도센서(54)로부터의 검출온도가 소정 이하일 때 냉장실팬(38)을 작동을 정지시키고, 검출온도가 다시 일정이상 상승하면 냉장실팬(38)을 재가동시킨다.Each room can be supercooled if the cold air generated from the freezer evaporator and the freezer evaporator is continuously supplied to the freezer compartment and the refrigerating compartment. Therefore, a temperature sensor is installed in each room and the compressor and each blower fan are based on the detection signals from these temperature sensors. To control. Such control may be performed by a mechanical method using a thermostat, but recently, as shown in FIG. 5, when the detection temperature from the temperature sensor 52 installed in the freezer compartment using the microcomputer 50 is less than or equal to a predetermined temperature, the compressor ( 34) and the operation of the freezing chamber fan 36 are stopped to stop the supply of cold air, and when the detection temperature rises above a certain level, the compressor 34 and the freezing chamber fan 36 are restarted to supply cold air. In addition, when the detection temperature from the refrigerating compartment temperature sensor 54 is lower than or equal to the predetermined temperature, the refrigerating compartment fan 38 is stopped. When the detection temperature rises again or more, the refrigerating compartment fan 38 is restarted.

한편, 각 증발기의 표면과 주위공기간의 상대습도의 차이에 의해 각 증발기의 표면에 습기가 응결되어 성에를 발생하게 되는데, 각 증발기의 표면에 누적된 성에는 각 증발기의 열교환 효율을 저하시켜, 효율적인 냉각기능을 저하시키는 동시에 소비전력의 증대를 가져온다. 그래서, 각 증발기의 온도를 검출하는 냉동실증발기 온도센서(56) 및 냉장실증발기 온도센서(58)를 설치하고, 각 증발기를 가열하기 위한 냉동실증발기 제상히터(40) 및 냉장실증발기 제상히터(42)를 마련하여, 마이컴(50)은, 각 증발기 온도센서(56,58)의 검출온도로부터 제상시기를 판단하고, 제상시기라고 판단된 때 각 제상히터(40,42)를 작동시켜 증발기 표면의 성에를 녹여 제거한다.On the other hand, moisture is condensed on the surface of each evaporator due to the difference in relative humidity between the surface of each evaporator and the ambient air, and frost is generated. The accumulated heat on the surface of each evaporator lowers the heat exchange efficiency of each evaporator, It lowers the cooling function and increases the power consumption. Thus, a freezer evaporator temperature sensor 56 and a refrigerator compartment evaporator temperature sensor 58 for detecting the temperature of each evaporator are installed, and a freezer evaporator defrost heater 40 and a refrigerator compartment evaporator defrost heater 42 for heating each evaporator. In addition, the microcomputer 50 determines the defrosting time from the detected temperatures of the evaporator temperature sensors 56 and 58, and operates the defrosting heaters 40 and 42 when the defrosting time is determined. Melt and remove.

이와 같이 종래의 냉장고에서는, 실내온도제어와 제상제어를 위해, 냉동실 온도센서(52), 냉장실 온도센서(54) 및 각 증발기 온도센서(56,58)등 다수의 온도센서를 구비하고 있다. 이러한 온도센서는 비교적 고가이기 때문에 그 설치개소가 늘어날수록 제조비용 상승의 원인이 된다. 그러한 한편, 제상시기의 판단을 위해 마련되어 있는 각 증발기 온도센서(56,58)는, 압축기(34)의 작동에 따라 그 검출온도가 증감하므로, 각 실내 온도센서(52,54)의 검출온도와 당연히 상관관계를 갖는다. 그래서, 각 실내 온도센서(52,54)를 제거하고, 각 증발기 온도센서(56,58)의 검출온도를 이용하여 각 실내 온도를 적절히 제어할 수 있다면, 제조비용의 절감에 기여할 수 있을 것이다.As described above, the conventional refrigerator includes a plurality of temperature sensors, such as a freezer compartment temperature sensor 52, a refrigerator compartment temperature sensor 54, and respective evaporator temperature sensors 56 and 58, for indoor temperature control and defrost control. Since such a temperature sensor is relatively expensive, the installation place increases, causing a rise in manufacturing cost. On the other hand, each of the evaporator temperature sensors 56 and 58 provided for the determination of the defrosting time increases and decreases the detected temperature according to the operation of the compressor 34, so that the detected temperatures of the respective room temperature sensors 52 and 54 Of course it has a correlation. Thus, if each room temperature sensor 52, 54 is removed, and each room temperature can be properly controlled using the detected temperatures of the evaporator temperature sensors 56, 58, it may contribute to a reduction in manufacturing cost.

따라서, 본 발명의 목적은, 이러한 증발기 온도와 실내온도 사이에 상관관계가 있다는 개념에 기초하여 안출된 것으로서, 각 실내 온도센서의 수를 줄여 제조비용의 절감을 도모한 냉장고 및 그 제어방법을 제공하는 것이다.Accordingly, an object of the present invention, based on the concept that there is a correlation between the evaporator temperature and the room temperature, to provide a refrigerator and a control method for reducing the manufacturing cost by reducing the number of each room temperature sensor. It is.

도 1은 본 발명에 따른 독립냉각방식 냉장고의 개략적 단면도,1 is a schematic cross-sectional view of an independent cooling refrigerator according to the present invention;

도 2는 각 실내온도와 각 증발기 검출온도의 상관관계 그래프,2 is a correlation graph of each room temperature and each evaporator detection temperature;

도 3은 도 1의 냉장고의 온도제어를 위한 제어블럭도,3 is a control block diagram for temperature control of the refrigerator of FIG. 1;

도 4는 본 발명에 따른 온도제어방법을 설명하기 위한 흐름도,4 is a flowchart illustrating a temperature control method according to the present invention;

도 5는 종래의 온도제어를 위한 제어블럭도이다.5 is a control block diagram for conventional temperature control.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 본체 2 : 냉동실1: body 2: freezer

3 : 냉장실 4 : 압축기3: refrigerator compartment 4: compressor

5 : 냉동실증발기 6 : 냉동실팬5: freezer evaporator 6: freezer fan

7 : 냉장실증발기 8 : 냉장실팬7: refrigerator compartment evaporator 8: refrigerator compartment fan

10 : 냉동실증발기 제상히터 12 : 냉장실증발기 제상히터10: freezer evaporator defrost heater 12: cold room evaporator defrost heater

20 : 제어부 22 : 냉동실증발기 온도센서20 control unit 22 freezer evaporator temperature sensor

24 : 냉장실증발기 온도센서24: refrigerator evaporator temperature sensor

상기 목적은, 본 발명에 따라, 압축기와, 냉동실증발기 및 냉장실증발기와, 상기 각 증발기에서 발생된 냉기를 냉동실 및 냉장실에 각각 송풍하는 냉동실팬 및 냉장실팬을 구비한 독립냉각방식 냉장고에 있어서, 상기 냉동실증발기 및 상기 냉장실증발기의 온도를 각각 검출하는 냉동실증발기 온도센서 및 냉장실증발기 온도센서와; 상기 냉동실증발기 온도센서에 의해 검출된 상기 냉동실증발기의 온도가 소정의 냉동실 상한온도 이상일 때 상기 압축기 및 상기 냉동실팬의 동작이 개시되고, 상기 냉동실증발기의 온도가 소정의 냉동실 하한온도 이하일 때 상기 압축기 및 상기 냉동실팬의 동작이 중단되도록 제어하는 제어부를 포함하는 것을 특징으로 하는 독립냉각방식 냉장고에 의해 달성된다.According to the present invention, in the independent cooling method refrigerator having a compressor, a freezer compartment evaporator and a refrigerator compartment evaporator, and a freezer compartment fan and a refrigerator compartment fan which respectively blow cool air generated in each evaporator to a freezer compartment and a refrigerator compartment. A freezer compartment evaporator temperature sensor and a refrigerator compartment evaporator temperature sensor for detecting a temperature of the freezer compartment evaporator and the refrigerator compartment evaporator, respectively; When the temperature of the freezer compartment evaporator detected by the freezer evaporator temperature sensor is above a predetermined freezer upper limit temperature, the operation of the compressor and the freezer compartment is started, and when the temperature of the freezer evaporator is below a predetermined freezer lower limit temperature, the compressor and It is achieved by the independent cooling method refrigerator comprising a control unit for controlling the operation of the freezer compartment to be stopped.

여기서, 상기 제어부는 상기 냉장실증발기 온도센서의 검출온도가 소정의 냉장실 상한온도 이상일 때 상기 냉장실팬의 동작이 개시되고, 상기 냉장실증발기 온도센서의 검출온도가 소정의 냉장실 하한온도 이하일 때 상기 냉장실팬의 동작이 중단되도록 하여 냉장실내의 온도를 제어할 수 있다. 또한, 상기 각 증발기에 인접하여 설치되어 제상을 위해 상기 각 증발기를 가열할 수 있는 냉동실 제상히터와 냉장실 제상히터를 더 포함하며, 상기 제어부는, 상기 각 증발기 온도센서의 검출온도에 기초하여 상기 각 제상히터의 제상동작을 제어하는 것이 바람직하다.Here, the control unit starts the operation of the refrigerator compartment fan when the detected temperature of the refrigerator compartment evaporator temperature sensor is above a predetermined refrigerator compartment upper limit temperature, and when the detected temperature of the refrigerator compartment evaporator temperature sensor is below a predetermined refrigerator compartment lower limit temperature. The operation can be stopped to control the temperature in the refrigerator compartment. The apparatus may further include a freezing chamber defrost heater and a refrigerating chamber defrost heater installed adjacent to each evaporator and capable of heating the respective evaporators for defrosting. The control unit may be configured based on the detected temperatures of the respective evaporator temperature sensors. It is preferable to control the defrosting operation of the defrost heater.

한편, 본 발명의 다른 분야에 따르면, 압축기와, 냉동실증발기 및 냉장실증발기와, 상기 각 증발기에서 발생된 냉기를 냉동실 및 냉장실에 각각 송풍하는 냉동실팬 및 냉장실팬을 구비한 독립냉각방식 냉장고의 온도제어방법에 있어서, 상기 냉동실증발기 및 상기 냉장실증발기의 온도를 각각 검출하는 단계와; 상기 냉동실증발기의 검출온도가 소정의 냉동실 상한온도 이상일 때 상기 압축기 및 상기 냉동실팬의 동작이 개시되고, 상기 냉동실증발기의 검출온도가 소정의 냉동실 하한온도 이하일 때 상기 압축기 및 상기 냉동실팬의 동작이 중단되도록 하는 단계를 포함하는 독립냉각방식 냉장고의 온도제어방법이 제공된다.On the other hand, according to another field of the present invention, the temperature control of the independent refrigerator type refrigerator having a compressor, a freezer compartment evaporator and a refrigerator compartment evaporator, and a freezer compartment and a refrigerator compartment fan which respectively blow cool air generated in each evaporator to the freezer compartment and the refrigerating compartment. A method comprising the steps of: detecting temperatures of the freezer compartment evaporator and the refrigerator compartment evaporator, respectively; The operation of the compressor and the freezer compartment is started when the detection temperature of the freezer compartment evaporator is above a predetermined freezer compartment upper limit temperature, and the operation of the compressor and the freezer compartment fan is stopped when the detection temperature of the freezer compartment evaporator is below a predetermined freezer compartment lower limit temperature. Provided is a temperature control method of an independent cooling refrigerator including a step of making it possible.

여기서, 상기 냉장실증발기의 검출온도가 소정의 냉장실 상한온도 이상일 때 상기 냉장실팬의 동작이 개시되고, 상기 냉장실증발기의 검출온도가 소정의 냉장실 하한온도 이하일 때 상기 냉장실팬의 동작이 중단되도록 하는 단계를 더 포함하는 것이 바람직하다. 또한, 상기 각 증발기의 검출온도에 기초하여 상기 각 증발기의 제상시기를 판단하는 단계와; 상기 제상시기로 판단되는 경우, 상기 각 증발기를 가열하여 제상동작을 실행하는 단계를 더 포함하는 것이 바람직하다.Here, the operation of the refrigerator compartment fan is started when the detection temperature of the refrigerator compartment evaporator is above a predetermined refrigerator compartment upper limit temperature, and the operation of the refrigerator compartment fan is stopped when the detection temperature of the refrigerator compartment evaporator is below a predetermined refrigerator compartment lower limit temperature. It is preferable to further include. In addition, determining the defrosting time of each evaporator based on the detection temperature of each evaporator; If it is determined that the defrosting time, it is preferable to further include the step of performing the defrosting operation by heating each evaporator.

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

도 1은 본 발명에 따른 독립냉각방식 냉장고의 개략적 단면도이다. 이 도면에서 볼 수 있는 바와 같이, 냉장고는, 상부의 냉동실(2)과 하부의 냉장실(3)을 형성하는 본체(1)와, 본체(1)의 후방하부에 설치되어 냉매를 압축하는 압축기(4)와, 본체(1)의 후벽면내에 형성된 냉기덕트내에 냉동실(2)과 냉장실(3)에 각각 대응하여 설치되며 압축기(4)에 대해 상호 직렬로 연결된 냉동실증발기(5) 및 냉장실증발기(7)와, 냉동실증발기(5) 및 냉장실증발기(7)에서 생성된 냉기를 냉동실(2) 및 냉장실(3)에 각각 송풍하는 냉동실팬(6) 및 냉장실팬(8)을 가지고 있다. 냉동실증발기(5)와 냉장실증발기(7)의 하부에는 각 증발기(5,7)의 제상을 위한 냉동실증발기 제상히터(10)와 냉장실증발기 제상히터(12)가 각각 설치되어 있다. 도 1에는 도시되어 있지 아니하지만, 냉동실증발기(5)와 냉장실증발기(7)에는 각 증발기(5,7)의 온도를 검출하기 위한 냉동실증발기 온도센서(22)와 냉장실증발기 온도센서(24)가 각각 부속되어 있다.1 is a schematic cross-sectional view of an independent cooling refrigerator according to the present invention. As can be seen in this figure, the refrigerator includes a main body 1 forming the upper freezing chamber 2 and the lower refrigerating chamber 3, and a compressor installed at the rear lower part of the main body 1 to compress the refrigerant ( 4) and a freezer compartment evaporator 5 and a refrigerator compartment evaporator which are respectively installed in the cold air duct formed in the rear wall of the main body 1 and correspond to the freezing chamber 2 and the refrigerating chamber 3 and connected to the compressor 4 in series. 7) and a freezer compartment fan 6 and a refrigerating compartment fan 8 for blowing cold air generated in the freezer compartment evaporator 5 and the refrigerator compartment evaporator 7 to the freezer compartment 2 and the refrigerating compartment 3, respectively. The lower part of the freezer compartment evaporator 5 and the refrigerator compartment evaporator 7 is provided with a freezer compartment evaporator defrost heater 10 and a refrigerator compartment evaporator defrost heater 12 for defrosting the respective evaporators 5 and 7, respectively. Although not shown in FIG. 1, the freezer evaporator 5 and the refrigerator compartment evaporator 7 include a freezer evaporator temperature sensor 22 and a refrigerator compartment evaporator temperature sensor 24 for detecting the temperature of each evaporator 5, 7. Each is attached.

도 2는 압축기(4), 냉동실팬(6), 냉장실팬(8)의 주기적 온/오프에 따른 냉동실(2), 냉장실(3), 냉동실증발기(5) 및 냉장실증발기(7)의 온도변화의 실험치를 나타낸 그래프이다. 이 도면에서, 가로축은 시간을 나타내며, 세로축은 압축기(4), 냉동실팬(6) 및 냉장실팬(8)의 온/오프 동작 또는 냉동실(2), 냉장실(3), 냉동실증발기(5) 및 냉장실증발기(7)의 온도를 나타낸다. 압축기(4)가 작동하고 있는 동안에는, 냉매가 냉동실증발기(5) 및 냉장실증발기(7)에서 증발하고 증발잠열에 의해 냉기가 발생되므로, 냉동실증발기(5) 및 냉장실증발기(7)의 온도는 선형적으로 하강하여 하한 설정온도에까지 이르게 되며, 발생된 냉기는 열전도 및 각 송풍팬(6,8)의 작동에 의해 각 실내(2,3)로 공급되므로 냉동실(2) 및 냉장실(3)의 온도는 소정의 하한온도까지 낮아지게 된다. 압축기(4)의 동작이 정지되면, 냉매는 각 증발기(5,7)내에서 더 이상 증발하지 않기 때문에, 각 증발기(5,7)는 냉기를 발생하지 않고 주위온도에 맞춰 온도가 서서히 증가한다. 또한, 각 실내(2,3)로 냉기가 공급되지 않으므로, 각 실내(2,3) 온도가 서서히 증가하여 소정의 상한온도에 도한다. 냉동실(2)의 실내온도가 상한 설정온도에 도달한 후, 압축기(4)가 재가동되면 각 증발기(5,7)와 냉동실(2) 및 냉장실(3)의 온도는 다시 하강한다. 이와 같이, 냉동실증발기(5) 및 냉장실증발기(7)의 온도가 상승 또는 하강함에 따라, 냉동실(2) 및 냉장실(3)의 온도는 각 증발기(5,7)의 온도와 어느정도 정비례관계를 가지며 상승 또는 하강하기 때문에, 각 실내(2,3)의 온도와 각 증발기(5,7)의 온도는 상당한 상관관계가 있다. 그러므로, 냉동실증발기(5)의 온도를 이용하여 냉동실(2)내의 온도를 예측할 수 있으며, 냉장실증발기(7)의 온도를 이용하여 냉장실(3)내의 온도를 예측할 수 있다. 또한, 충분한 실험을 통하여 각 실내(2,3)의 온도와 각 증발기(5,7)의 온도 사이의 관계를 명확히 특정한 데이터를 구하면 예측의 정확성을 높일 수 있다.2 shows the temperature change of the freezer compartment 2, the freezer compartment 3, the freezer compartment evaporator 5 and the refrigerator compartment evaporator 7 according to the periodic on / off of the compressor 4, the freezer compartment fan 6, and the refrigerating compartment fan 8. It is a graph showing the experimental value of. In this figure, the horizontal axis represents time, and the vertical axis represents on / off operation of the compressor 4, the freezer compartment fan 6 and the refrigerating compartment fan 8 or the freezer compartment 2, the refrigerating compartment 3, the freezer compartment evaporator 5 and The temperature of the refrigerator compartment evaporator 7 is shown. While the compressor 4 is operating, the refrigerant evaporates in the freezer evaporator 5 and the freezer evaporator 7 and cold air is generated by latent heat of evaporation, so that the temperatures of the freezer evaporator 5 and the freezer evaporator 7 are linear. Lower the temperature to reach the lower limit set temperature, the generated cold air is supplied to each room (2, 3) by the heat conduction and operation of each blowing fan (6, 8), so the temperature of the freezing chamber (2) and the refrigerating chamber (3) Is lowered to a predetermined lower limit temperature. When the operation of the compressor 4 is stopped, since the refrigerant no longer evaporates in each of the evaporators 5 and 7, the evaporators 5 and 7 do not generate cold air and gradually increase in temperature in accordance with the ambient temperature. . In addition, since cold air is not supplied to each room 2, 3, the temperature of each room 2, 3 gradually increases to reach a predetermined upper limit temperature. After the indoor temperature of the freezer compartment 2 reaches the upper limit set temperature, when the compressor 4 is restarted, the temperatures of the respective evaporators 5, 7 and the freezer compartment 2 and the refrigerating compartment 3 again fall. As such, as the temperatures of the freezer compartment evaporator 5 and the refrigerator compartment evaporator 7 rise or fall, the temperatures of the freezer compartment 2 and the refrigerating compartment 3 are somewhat directly proportional to the temperatures of the evaporators 5 and 7. As it rises or falls, the temperature of each room 2, 3 and the temperature of each evaporator 5, 7 have a significant correlation. Therefore, the temperature in the freezer compartment 2 can be estimated using the temperature of the freezer compartment evaporator 5, and the temperature in the refrigerator compartment 3 can be estimated using the temperature of the refrigerator compartment evaporator 7. In addition, it is possible to improve the accuracy of the prediction by obtaining specific data that clarifies the relationship between the temperatures of the rooms 2 and 3 and the temperatures of the evaporators 5 and 7 through sufficient experiments.

도 3은 냉동실증발기(5)의 검출온도와 냉장실증발기(7)의 검출온도 이용하여 각 실내(2,3)의 온도를 제어하기 위한 제어블럭도이다. 이러한 제어는, 이상에서 기술한, 각 증발기(5,7)의 온도와 각 실내(2,3)의 온도와의 상관관계에 기초하고 있다. 도시된 바와 같이, 통상적으로 마이컴으로 만들어지는 제어부(20)는, 냉동실증발기 온도센서(22), 냉장실증발기 온도센서(24)로부터 검출신호를 입력받아, 압축기(4), 냉동실팬(6), 냉장실팬(8), 냉동실증발기 제상히터(10) 및 냉장실증발기 제상히터(12)를 제어한다.3 is a control block diagram for controlling the temperature of each of the rooms 2 and 3 by using the detection temperature of the freezer evaporator 5 and the detection temperature of the refrigerator compartment evaporator 7. This control is based on the correlation of the temperature of each evaporator 5,7 and the temperature of each room 2,3 described above. As shown, the control unit 20, which is usually made of a microcomputer, receives a detection signal from the freezer evaporator temperature sensor 22 and the freezer evaporator temperature sensor 24, the compressor (4), the freezer compartment fan (6), The refrigerator compartment fan 8, the freezer compartment evaporator defrost heater 10, and the refrigerator compartment evaporator defrost heater 12 are controlled.

정상적인 운전의 경우, 제어부(20)는, 냉동실증발기 온도센서(22) 및 냉장실증발기 온도센서(24)로부터의 검출신호에 의해, 각 증발기(5,7)의 온도를 알 수 있으며 이에 의해 냉동실(2) 및 냉장실(3)의 온도를 예측할 수 있다. 냉동실증발기 온도센서(22)의 검출온도가 소정의 상한온도 이상이면 냉동실(2)의 실내온도는 적정온도 이상이므로, 제어부(20)는 실내온도를 낮출 필요가 있는 것으로 판단하여 압축기(4) 및 냉동실팬(6)을 작동시킨다. 이에 의해, 냉동실증발기(5)에서 발생된 냉기는 냉동실(2)로 공급되어 냉동실(2)내의 온도를 강하시킨다. 냉동실증발기 온도센서(22)가 소정의 설정온도 이하로 된 것으로 감지하면 냉동실(2)내 온도가 적정온도 이하이므로, 제어부(20)는 압축기(4)와 냉동실팬(6)의 작동을 정지시켜 냉기의 공급을 차단한다. 한편, 냉장실(3)에 부속된 냉장실증발기(7)는 냉동실증발기(5)와 직렬로 접속되어 있으므로, 압축기(4)의 동작에 의해 냉동실증발기(5)에 냉매가 공급될 때에 함께 냉매를 공급받아 냉기를 발생시킨다. 그래서, 제어부(20)는, 압축기(4)의 작동중에, 냉장실증발기 온도센서(24)의 검출온도에 기초하여 상한설정온도와 하한설정온도에 맞추어 냉장실팬(8)을 온오프제어함으로써 냉장실(3)의 실내온도를 설정된 범위내로 유지한다.In the normal operation, the control unit 20 can know the temperature of each evaporator (5, 7) by the detection signals from the freezer evaporator temperature sensor 22 and the freezer evaporator temperature sensor 24, and thereby the freezer compartment ( 2) and the temperature of the refrigerating chamber 3 can be predicted. If the detection temperature of the freezer evaporator temperature sensor 22 is equal to or higher than a predetermined upper limit temperature, the indoor temperature of the freezer compartment 2 is equal to or higher than an appropriate temperature, and thus the control unit 20 determines that the indoor temperature needs to be lowered. Operate the freezer compartment fan (6). As a result, the cool air generated in the freezer compartment evaporator 5 is supplied to the freezer compartment 2 to lower the temperature in the freezer compartment 2. If the freezer evaporator temperature sensor 22 detects that the predetermined temperature is lower than or equal to a predetermined set temperature, the temperature in the freezer compartment 2 is lower than an appropriate temperature, so that the control unit 20 stops the operation of the compressor 4 and the freezer compartment fan 6. Shut off the supply of cold air. On the other hand, since the refrigerator compartment evaporator 7 attached to the refrigerator compartment 3 is connected in series with the freezer compartment evaporator 5, the refrigerant is supplied together when the refrigerant is supplied to the freezer compartment evaporator 5 by the operation of the compressor 4. Take out and generate cold air. Therefore, the control unit 20 controls the refrigerating compartment fan 8 on and off in accordance with the upper limit set temperature and the lower limit set temperature based on the detected temperature of the refrigerator compartment evaporator temperature sensor 24 during the operation of the compressor 4. Keep the room temperature in 3) within the set range.

한편, 제어부(20)는 냉동실증발기 온도센서(22) 및 냉장실증발기 온도센서(24)로부터의 온도검출신호를 수령하여, 각 증발기(5,7)의 제상시기를 판단한다. 압축기(4)의 동작정지중에 각 증발기 온도센서(22,24)로부터의 검출온도에 기초하여 각 증발기(5,7)의 온도상승추이를 확인하고, 압축기(4)의 정지후 일정시간이 경과하였음에도 불구하고 소정의 온도이상 상승하지 아니한 때에는, 해당 증발기의 착상량이 많은 데 기인한 것으로 보아 제상시기로 판단한다. 어느 한 증발기가 제상시기에 있다고 판단하면, 그 증발기에 부속된 제상히터를 작동시켜, 증발기의 표면에 누적된 성에를 녹여 제거한다.On the other hand, the control unit 20 receives the temperature detection signal from the freezer evaporator temperature sensor 22 and the cold room evaporator temperature sensor 24 to determine the defrosting timing of each evaporator (5, 7). During the operation stop of the compressor 4, the temperature rise trend of each evaporator 5 and 7 is confirmed based on the detected temperature from each evaporator temperature sensor 22 and 24, and a fixed time elapses after the compressor 4 is stopped. In spite of this, when it does not rise above the predetermined temperature, it is judged that it is due to the large amount of implantation of the evaporator and it is defrosting time. If it is judged that one evaporator is in the defrosting period, the defrost heater attached to the evaporator is operated to dissolve and remove the accumulated frost on the surface of the evaporator.

도 4는, 상기한 바와 같이 동작하는 제어부(20)의 제어과정을 나타낸 흐름도이다. 제어과정은 크게 냉동실(2)의 온도제어와 냉장실(3)의 온도제어로 나뉜다.4 is a flowchart illustrating a control process of the controller 20 operating as described above. The control process is largely divided into temperature control of the freezer compartment 2 and temperature control of the refrigerating compartment 3.

압축기(4)와 냉동실팬(6)은 동시에 ON 또는 OFF 되도록 제어되며, 냉동실(2)내의 온도를 제어하기 위해, 제어부(20)는 압축기(4)가 동작중인가를 판단한다(S1). 압축기(4)가 동작중이면, 냉동실증발기(5)의 검출온도가 소정의 하한온도 이하인가를 판단한다(S2). 검출온도가 소정의 하한온도 이하이면 냉동실(2)은 과냉각상태이므로 압축기(4) 및 냉동실팬(6)을 OFF 시키고(S3), 그렇지 않으면 압축기(4) 및 냉동실팬(6)을 계속 ON 상태로 유지시킨다(S4). 또한, 압축기(4)가 동작중인가를 판단하는 단계(S1)에서 압축기(4)가 동작하고 있지 않으면 냉동실증발기(5)의 검출온도가 소정의 상한온도 이상인가를 판단한다(S5). 검출온도가 소정의 상한온도 이상이면 냉동실(2)내의 온도가 적정온도 이상이므로, 압축기(4) 및 냉동실팬(6)을 ON 시키고(S6), 그렇지 않으면 압축기(4) 및 냉동실팬(6)을 계속 OFF 시킨다(S7). 이러한 과정을 거치며, 제어부(20)는 냉동실(2)의 실내온도를 제어한다.The compressor 4 and the freezer compartment fan 6 are simultaneously controlled to be turned on or off, and in order to control the temperature in the freezer compartment 2, the controller 20 determines whether the compressor 4 is operating (S1). When the compressor 4 is in operation, it is determined whether the detected temperature of the freezer compartment evaporator 5 is equal to or less than a predetermined lower limit temperature (S2). If the detected temperature is lower than the predetermined lower limit temperature, the freezer compartment 2 is in a supercooled state, and thus the compressor 4 and the freezer compartment fan 6 are turned off (S3), otherwise the compressor 4 and the freezer compartment 6 are continuously turned on. It is maintained at (S4). In addition, when the compressor 4 is not operated in the step S1 of determining whether the compressor 4 is in operation, it is determined whether the detection temperature of the freezer compartment evaporator 5 is equal to or higher than a predetermined upper limit temperature (S5). If the detected temperature is equal to or higher than the predetermined upper limit temperature, the temperature in the freezer compartment 2 is equal to or higher than the appropriate temperature. Therefore, the compressor 4 and the freezer compartment fan 6 are turned on (S6), otherwise the compressor 4 and the freezer compartment fan 6 are turned on. Continue to turn off (S7). Through this process, the control unit 20 controls the room temperature of the freezer compartment (2).

한편, 냉장실(3)내의 온도를 제어하기 위해, 제어부(20)는 압축기(4)가 동작중인가를 판단한다(S8). 압축기(4)가 동작중이면, 냉장실증발기(7)의 검출온도가 소정의 하한온도 이하인가를 판단한다(S9). 검출온도가 소정의 하한온도 이하이면 냉장실(3)은 과냉각상태이므로 냉장실팬(8)을 OFF 시키고(S10), 그렇지 않으면 냉장실팬(8)을 ON 시킨다(S11). 또한, 압축기(4)가 동작중인가를 판단하는 단계(S8)에서 압축기(4)가 동작하지 않으면, 냉장실증발기(7)의 검출온도가 소정의 상한온도 이상인가를 판단한다(S12). 검출온도가 소정의 상한온도 이상이라고 판단되면, 제어부(20)는 냉장실팬(8)을 ON 시키고(S13), 그렇지 않으면 냉장실팬(8)을 OFF 시킨다(S14). 여기서, 압축기(4)가 작동하지 않으면 냉기가 발생하지 않기 때문에, 냉장실팬(8)을 ON 또는 OFF 시켜도 냉장실(3)로 냉기가 공급되지 않으므로, 압축기(4)의 동작시에만 냉장실팬(8)의 동작이 제어되도록 할 수도 있다.On the other hand, in order to control the temperature in the refrigerating chamber 3, the control unit 20 determines whether the compressor 4 is operating (S8). If the compressor 4 is in operation, it is determined whether the detected temperature of the refrigerator compartment evaporator 7 is equal to or less than a predetermined lower limit temperature (S9). If the detection temperature is lower than the predetermined lower limit temperature, the refrigerating chamber 3 is in the supercooled state, and thus the refrigerating chamber fan 8 is turned off (S10), otherwise the refrigerating chamber fan 8 is turned on (S11). In addition, when the compressor 4 does not operate in the step S8 of determining whether the compressor 4 is in operation, it is determined whether the detected temperature of the refrigerator compartment evaporator 7 is equal to or higher than a predetermined upper limit temperature (S12). If it is determined that the detected temperature is higher than or equal to the predetermined upper limit temperature, the control unit 20 turns on the refrigerator compartment fan 8 (S13), otherwise turns off the refrigerator compartment fan 8 (S14). Since no cold air is generated when the compressor 4 does not operate, cold air is not supplied to the refrigerating compartment 3 even when the refrigerating compartment fan 8 is turned on or off. Thus, the refrigerating compartment fan 8 is operated only when the compressor 4 is operated. May be controlled.

이와 같이, 각 실내(2,3)의 온도를 검출하기 위한 별도의 온도센서 없이도, 냉동실증발기 온도센서(22)와 냉장실증발기 온도센서(24)의 검출신호에 의해 냉동실(2) 및 냉장실(3)의 온도를 적절히 유지할 수 있으며, 이에 따라 각 실내에 온도센서가 설치된 종래의 독립냉각방식 냉장고보다 제조비용을 절감할 수 있다.In this way, the freezer compartment 2 and the refrigerating compartment 3 can be controlled by the detection signals of the freezer evaporator temperature sensor 22 and the refrigerator compartment evaporator temperature sensor 24 without a separate temperature sensor for detecting the temperature of each room 2, 3. Temperature can be properly maintained, and thus manufacturing cost can be reduced compared to the conventional independent cooling refrigerator having a temperature sensor installed in each room.

한편, 이상에서는 냉동실 온도센서 및 냉장실 온도센서를 설치하지 않은 냉장고에 대해 설명했지만, 본 발명은, 경우에 따라 각 실내중 어느 한 곳에 온도센서를 설치한 독립냉각방식 냉장고에도 적용될 수 있다.On the other hand, in the above described the refrigerator without the freezer compartment temperature sensor and the refrigerating compartment temperature sensor, the present invention can be applied to an independent cooling method refrigerator having a temperature sensor installed in any one of the rooms in some cases.

이상 설명한 바와 같이, 본 발명에 따르면, 각 실내의 온도를 적절히 유지하면서, 온도센서의 수를 줄임으로써 제조비용을 절감할 수 있는 독립냉각방식 냉장고 및 그 제어방법이 제공된다.As described above, according to the present invention, an independent cooling refrigerator and a control method thereof, which can reduce manufacturing costs by reducing the number of temperature sensors while appropriately maintaining the temperature of each room, are provided.

Claims (6)

압축기와, 냉동실증발기 및 냉장실증발기와, 상기 각 증발기에서 발생된 냉기를 냉동실 및 냉장실에 각각 송풍하는 냉동실팬 및 냉장실팬을 구비한 독립냉각방식 냉장고에 있어서, 상기 냉동실증발기 및 상기 냉장실증발기의 온도를 각각 검출하는 냉동실증발기 온도센서 및 냉장실증발기 온도센서와; 상기 냉동실증발기 온도센서에 의해 검출된 상기 냉동실증발기의 온도가 소정의 냉동실 상한온도 이상일 때 상기 압축기 및 상기 냉동실팬의 동작이 개시되고, 상기 냉동실증발기의 온도가 소정의 냉동실 하한온도 이하일 때 상기 압축기 및 상기 냉동실팬의 동작이 중단되도록 제어하는 제어부를 포함하는 것을 특징으로 하는 독립냉각방식 냉장고.A freezer evaporator and a freezer compartment evaporator comprising a freezer compartment evaporator and a refrigerator compartment evaporator, and a freezer compartment and a refrigerator compartment fan which blow cold air generated in each evaporator to a freezer compartment and a refrigerating compartment, respectively. A freezing chamber evaporator temperature sensor and a refrigerator compartment evaporator temperature sensor, respectively; When the temperature of the freezer compartment evaporator detected by the freezer evaporator temperature sensor is above a predetermined freezer upper limit temperature, the operation of the compressor and the freezer compartment is started, and when the temperature of the freezer evaporator is below a predetermined freezer lower limit temperature, the compressor and And a control unit for controlling the operation of the freezer compartment to be stopped. 제 1항에 있어서, 상기 제어부는 상기 냉장실증발기 온도센서의 검출온도가 소정의 냉장실 상한온도 이상일 때 상기 냉장실팬의 동작이 개시되고, 상기 냉장실증발기 온도센서의 검출온도가 소정의 냉장실 하한온도 이하일 때 상기 냉장실팬의 동작이 중단되도록 제어하는 제어부를 포함하는 것을 특징으로 하는 독립냉각방식 냉장고.The refrigerator of claim 1, wherein the control unit starts the operation of the refrigerator compartment fan when the detected temperature of the refrigerator compartment evaporator temperature sensor is greater than or equal to a predetermined refrigerator compartment upper limit temperature, and when the detected temperature of the refrigerator compartment evaporator temperature sensor is equal to or less than a predetermined refrigerator compartment lower limit temperature. And a control unit for controlling the operation of the refrigerator compartment fan to be stopped. 제 2항에 있어서, 상기 각 증발기에 인접하여 설치되어 제상을 위해 상기 각 증발기를 가열할 수 있는 냉동실 제상히터와 냉장실 제상히터를 더 포함하며, 상기 제어부는, 상기 각 증발기 온도센서의 검출온도에 기초하여 상기 각 제상히터의 제상동작을 제어하는 것을 특징으로 하는 독립냉각방식 냉장고.3. The apparatus of claim 2, further comprising a freezer compartment defrost heater and a refrigerating compartment defrost heater installed adjacent to each evaporator and capable of heating each evaporator for defrosting, wherein the control unit is configured to detect detected temperatures of the respective evaporator temperature sensors. Independent cooling type refrigerator, characterized in that for controlling the defrost operation of each defrost heater based on. 압축기와, 냉동실증발기 및 냉장실증발기와, 상기 각 증발기에서 발생된 냉기를 냉동실 및 냉장실에 각각 송풍하는 냉동실팬 및 냉장실팬을 구비한 독립냉각방식 냉장고의 온도제어방법에 있어서, 상기 냉동실증발기 및 상기 냉장실증발기의 온도를 각각 검출하는 단계와; 상기 냉동실증발기의 검출온도가 소정의 냉동실 상한온도 이상일 때 상기 압축기 및 상기 냉동실팬의 동작이 개시되고, 상기 냉동실증발기의 검출온도가 소정의 냉동실 하한온도 이하일 때 상기 압축기 및 상기 냉동실팬의 동작이 중단되도록 하는 단계를 포함하는 독립냉각방식 냉장고의 온도제어방법.A temperature control method of an independent cooling type refrigerator having a compressor, a freezer compartment evaporator and a refrigerator compartment evaporator, and a freezer compartment fan and a refrigerator compartment fan for respectively blowing cold air generated in each evaporator to a freezer compartment and a refrigerator compartment, wherein the freezer compartment evaporator and the refrigerator compartment Detecting the temperature of the evaporator respectively; The operation of the compressor and the freezer compartment is started when the detection temperature of the freezer compartment evaporator is above a predetermined freezer compartment upper limit temperature, and the operation of the compressor and the freezer compartment fan is stopped when the detection temperature of the freezer compartment evaporator is below a predetermined freezer compartment lower limit temperature. Temperature control method of the independent cooling method of the refrigerator comprising the step of. 제 4항에 있어서, 상기 냉장실증발기의 검출온도가 소정의 냉장실 상한온도 이상일 때 상기 냉장실팬의 동작이 개시되고, 상기 냉장실증발기의 검출온도가 소정의 냉장실 하한온도 이하일 때 상기 냉장실팬의 동작이 중단되도록 하는 단계를 더 포함하는 것을 특징으로 하는 독립냉각방식 냉장고의 온도제어방법.The operation of the refrigerator compartment fan according to claim 4, wherein the operation of the refrigerator compartment fan is started when the detection temperature of the refrigerator compartment evaporator is greater than or equal to a predetermined refrigerator compartment upper limit temperature, and the operation of the refrigerator compartment fan is stopped when the detection temperature of the refrigerator compartment evaporator is less than or equal to a predetermined refrigerator compartment lower limit temperature. The temperature control method of the independent cooling method of the refrigerator further comprising the step of. 제 5항에 있어서, 상기 각 증발기의 검출온도에 기초하여 상기 각 증발기의 제상시기를 판단하는 단계와; 상기 제상시기로 판단되는 경우, 상기 각 증발기를 가열하여 제상동작을 실행하는 단계를 더 포함하는 것을 특징으로 하는 독립냉각방식 냉장고의 온도제어방법.The method of claim 5, further comprising: determining a defrosting time of each evaporator based on the detected temperature of each evaporator; If it is determined that the defrosting time, the temperature control method of the independent cooling method of the refrigerator further comprising the step of performing a defrosting operation by heating each evaporator.
KR1019970025230A 1997-06-17 1997-06-17 Independent cooling type refrigerator and controlling method of thermal thereof KR100234110B1 (en)

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KR1019970025230A KR100234110B1 (en) 1997-06-17 1997-06-17 Independent cooling type refrigerator and controlling method of thermal thereof
JP10170391A JPH1144474A (en) 1997-06-17 1998-06-17 Refrigerator and control method of same
DE19827038A DE19827038A1 (en) 1997-06-17 1998-06-17 Refrigerator arrangement with automatic defrosting
CN98102969A CN1202612A (en) 1997-06-17 1998-06-17 Refrigerator and controlling method therefor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000056845A (en) * 1999-02-26 2000-09-15 윤종용 Refrigerator and Control Method Thereof
KR101099126B1 (en) * 2009-09-18 2011-12-26 주식회사 세원주방산업 Apparatus and method for temperature control in refrigeration system

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