KR100260450B1 - A controlling method of a refrigerator - Google Patents

A controlling method of a refrigerator Download PDF

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Publication number
KR100260450B1
KR100260450B1 KR1019970072084A KR19970072084A KR100260450B1 KR 100260450 B1 KR100260450 B1 KR 100260450B1 KR 1019970072084 A KR1019970072084 A KR 1019970072084A KR 19970072084 A KR19970072084 A KR 19970072084A KR 100260450 B1 KR100260450 B1 KR 100260450B1
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South Korea
Prior art keywords
refrigerator
compressor
temperature
refrigerating compartment
temperature sensor
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KR1019970072084A
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Korean (ko)
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KR19990052591A (en
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김지용
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전주범
대우전자주식회사
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Priority to KR1019970072084A priority Critical patent/KR100260450B1/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
    • 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
    • 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
    • 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
    • F25D2700/12—Sensors measuring the inside temperature

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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)

Abstract

PURPOSE: A method for controlling operation of refrigerating compartment is provided to prevent spoilage of foodstuff stored in the refrigerating compartment, by turning on/off the compressor so as to operate a refrigerating compartment fan upon breakdown of refrigerating compartment temperature sensor. CONSTITUTION: A method comprises a step(S101) of judging whether a failure occurs or not in the refrigerating compartment temperature sensor; a step(S102) of judging whether the compressor is turned on, if a failure occurs in the sensor; a step(S103) of driving the compressor in accordance with the outdoor air temperature and varying the operation ratio of the refrigerating compartment fan, if it is judged in the step(S102) that the compressor is turned on; a step(S104) of driving the refrigerating compartment fan in accordance with the operation of the compressor; and a step(S105) of varying the operation ratio of the refrigerating compartment fan in accordance with the outdoor air temperature, if it is judged in the step(S102) that the compressor is turned off.

Description

냉장실 운전 제어방법Cold room operation control method

본 발명은 냉장고의 제어방법에 관한 것으로서, 특히 냉장실의 온도센서 불량시의 냉장실 운전 제어방법에 관한 것이다.The present invention relates to a method for controlling a refrigerator, and more particularly, to a method for controlling a refrigerator operation when a temperature sensor of a refrigerator is defective.

일반적으로 냉장고는 음식물을 일정기간 동안 신선하게 유지시켜는 용도로 사용되는 전자제품으로 첨부도면 도 1에 도시된 바와같이 본체(10)와, 본체(10) 내부에 양분되어 음식물을 냉동 보관하는 냉동실(11) 및 냉장 보관하는 냉장실(12)과, 본체(10)의 전면에 설치되어 냉동실(11)을 개폐시켜 주는 냉동실도어(13) 및 냉장실(12)을 개폐시켜 주는 냉장실도어(14)와, 상기 냉동실(11)과 냉장실(12)의 냉각에 필요한 냉기를 만들어 주는 냉동싸이클과, 냉동싸이클에서 만들어진 냉기를 냉동실(11) 및 냉장실(12)로 보내주는 냉기공급수단으로 크게 구성되어 있다.In general, a refrigerator is an electronic product used for keeping food fresh for a predetermined period of time. As shown in FIG. 1, the refrigerator is divided into a main body 10 and a freezer compartment for freezing and storing food in the main body 10. (11) and the refrigerating compartment 12 for refrigerating, the freezer compartment 13 installed at the front of the main body 10 to open and close the freezer compartment 11, and the refrigerating compartment door 14 for opening and closing the refrigerating compartment 12; It is largely composed of a freezing cycle for making cold air required for cooling the freezing chamber 11 and the refrigerating chamber 12, and cold air supply means for sending the cold air made in the freezing cycle to the freezing chamber 11 and the refrigerating chamber 12.

상기와 같은 냉장고의 냉동싸이클은 도 2에 나타낸 바와같이 저온, 저압의 기체냉매를 고온, 고압의 기체냉매로 압축하는 압축기(15)와, 상기 고온, 고압의 기체냉매를 응축시켜 고온, 고압의 액체냉매로 변환시켜 주는 응축기(16)와, 상기 고온, 고압의 액체냉매를 저온, 저압의 액체냉매로 변환시켜 주는 모세관(17)과, 상기 저온, 저압의 액체냉매를 저온, 저압의 기체냉매로 증발시켜 주는 증발기(18)와, 상기 각 구성품을 일체화하면서 냉매의 이동통로 역할하는 연결파이프(19)로 구성되어 있다.As shown in FIG. 2, the refrigerating cycle of the refrigerator includes a compressor 15 for compressing a low-temperature, low-pressure gas refrigerant into a high-temperature, high-pressure gas refrigerant, and condensing the high-temperature, high-pressure gas refrigerant to a high-temperature, high-pressure pressure. A condenser 16 for converting a liquid refrigerant, a capillary tube 17 for converting the high temperature and high pressure liquid refrigerant into a low temperature and low pressure liquid refrigerant, and a low temperature and low pressure gas refrigerant for the low temperature and low pressure liquid refrigerant. And an evaporator 18 for evaporating the furnace, and a connecting pipe 19 serving as a moving passage of the refrigerant while integrating the respective components.

따라서, 냉동실(11)에 냉동용 음식물을 채우고 냉장실(12)에는 냉장용 음식물을 채운상태에서 전원을 공급시키면 콘트롤러의 제어신호를 받아 냉동싸이클을 구성하는 압축기(15)가 구동되어 저온, 저압의 기체냉매를 고온, 고압의 기체냉매로 압축시킨다.Therefore, when the refrigeration chamber 11 is filled with the food for freezing and the refrigeration chamber 12 is supplied with the refrigerated food in the state of filling the refrigerated food, the compressor 15 constituting the refrigeration cycle is driven under the control signal of the controller to operate at low temperature and low pressure. The gas refrigerant is compressed into a gas refrigerant of high temperature and high pressure.

이 압축된 고온, 고압의 기체냉매는 연결파이프(19)에 안내되어 응축기(16)를 통과하면서 고온, 고압의 액체냉매로 응축되며 이 응축된 고온, 고압의 액체냉매는 연결파이프(19)에 안내되어 모세관(17)를 통과하면서 온도와 압력이 급격히 떨어진 저온, 저압의 액체냉매로 변환된 다음 계속해서 연결파이프(19)에 안내되어 증발기(18)를 통과하면서 저온, 저압의 기체냉매로 변환되어 증발되는데, 이때 상기 증발기(18)의 증발작용에 의해 주위의 공기가 열교환되므로 냉기가 발생된다.The compressed high-temperature, high-pressure gas refrigerant is guided to the connecting pipe 19 and condensed into a high-temperature, high-pressure liquid refrigerant while passing through the condenser 16. The condensed high-temperature, high-pressure liquid refrigerant is transferred to the connecting pipe 19. Guided through the capillary tube 17, the temperature and pressure is rapidly converted into low-temperature, low-pressure liquid refrigerant and then guided to the connecting pipe 19 to pass through the evaporator 18 to convert to low-temperature, low-pressure gas refrigerant The evaporator 18 is then evaporated. At this time, the ambient air is heat-exchanged by the evaporation of the evaporator 18 so that cold air is generated.

이와같이 증발기(18)에서 발생된 냉기는 냉기공급수단에 의해 일부가 냉동실(11)로 공급되어 상기 냉동실(11)을 냉각시켜 주므로 냉동실(11)에 보관된 음식물이 냉동됨과 함께 일부가 냉장실(12)로 공급되어 상기 냉장실(12)을 냉각시켜 주므로 냉장실(12)에 보관된 음식물이 냉장된다.As such, the cold air generated in the evaporator 18 is partially supplied to the freezing chamber 11 by the cold air supply means to cool the freezing chamber 11, so that the food stored in the freezing chamber 11 is frozen and a portion of the cold chamber 12 is cooled. Since the refrigerator is cooled to the refrigerator compartment 12, the food stored in the refrigerator compartment 12 is refrigerated.

도 3은 일반적인 냉장고의 블록구성도이다.3 is a block diagram of a typical refrigerator.

도 3를 참조하면, 일반적인 냉장고는 냉장고의 구동에 따른 냉동/냉장실의 내부 온도를 감지하는 냉동/냉장실온도 감지센서(20)(22)와, 냉장고의 외부에 설치되고 냉장고의 외기온도를 감지하는 외기온도 감지센서(24)와, 냉동/냉장실온도 감지센서(20)(22) 및 외기온도 감지센서(24)의 제어신호에 따라 냉장고의 전체 시스템을 제어하는 중앙제어부(26)와, 중앙제어부(26)의 제어신호에 따라 압축기(30) 및 냉동/냉장실팬(32)을 구동하는 모터구동부(28)로 구성된다.Referring to FIG. 3, a typical refrigerator includes a refrigerator / freezer temperature sensor 20 and 22 for detecting an internal temperature of a refrigerator / freezer according to driving of the refrigerator, and installed outside the refrigerator to detect an outside temperature of the refrigerator. Central control unit 26 for controlling the entire system of the refrigerator in accordance with the control signal of the outside air temperature sensor 24, the freezer / refrigerator temperature sensor 20, 22 and the outside air temperature sensor 24, and the central control unit And a motor driver 28 for driving the compressor 30 and the freezer / refrigeration chamber fan 32 in accordance with the control signal of (26).

이와같이 구성된 종래의 냉장고는 냉장실 온도센서의 고장시에 냉장실팬은 압축기의 온/오프 운전에 상관없이 회전함으로써 냉장고의 냉장효율이 저하될 뿐만 아니라 음식물이 빙결되는 문제점이 있다.In the conventional refrigerator configured as described above, when the refrigerator compartment temperature sensor malfunctions, the refrigerator compartment fan is rotated regardless of the on / off operation of the compressor, thereby reducing the refrigerating efficiency of the refrigerator and freezing food.

본 발명은 상기한 종래기술의 제반 문제점을 해결하기 위하여 안출한 것으로서, 본 발명의 목적은 냉장실온도 감지센서의 고장시에 외기온도 감지센서에 감지된 온도에 따라 구동되는 압축기에 의해 냉장실팬을 구동시켜 냉장실의 온도를 제어하는 냉장실 운전 제어방법을 제공함에 있다.The present invention has been made to solve the above-mentioned problems of the prior art, an object of the present invention is to drive the refrigerator compartment fan by a compressor driven according to the temperature sensed by the ambient temperature sensor in the case of failure of the refrigerator compartment temperature sensor It is to provide a refrigerating chamber operation control method for controlling the temperature of the refrigerating chamber.

도 1은 일반적인 냉장고의 요부 구성을 나타낸 종단면도,1 is a longitudinal sectional view showing a main configuration of a general refrigerator;

도 2는 일반적인 냉장고의 냉동싸이클을 나타낸 블록구성도,2 is a block diagram showing a refrigeration cycle of a typical refrigerator;

도 3은 일반적인 냉장고의 블록구성도,3 is a block diagram of a typical refrigerator;

도 4는 본 발명에 따른 냉장실 운전 제어방법을 나타낸 흐름도이다.4 is a flowchart illustrating a refrigerating chamber operation control method according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

20 : 냉동실온도 감지센서 22 : 냉장실온도 감지센서20: freezer temperature sensor 22: cold room temperature sensor

24 : 외기온도 감지센서 26 : 중앙제어부24: outside temperature sensor 26: central control unit

28 : 모터구동부 30 : 압축기28: motor drive unit 30: compressor

32 : 냉동/냉장실팬32: Freezer / Refrigerator Fan

본 발명에 따른 냉장실 운전 제어방법의 특징은, 냉장고의 통상운전 제어방법에 있어서, 냉장고의 냉장실온도 감지센서가 고장인가를 판단하는 단계와, 냉장고의 냉장실온도 감지센서가 고장인 경우에 압축기가 온되었는지를 판단하는 단계와, 압축기의 온시에 냉장고의 외기온도에 따라 압축기를 구동하여 냉장실팬의 운전율을 다르게 하는 단계와, 압축기의 오프시에 냉장고의 외기온도에 따라 냉장실팬의 운전율을 다르게 하는 단계를 포함하여 이루어짐에 있다.The refrigerator operation control method according to the present invention is characterized in that, in the normal operation control method of the refrigerator, determining whether the refrigerator compartment temperature sensor of the refrigerator is broken, and when the refrigerator compartment temperature sensor of the refrigerator is broken, the compressor is turned on. Determining whether the refrigerator is on, operating the compressor according to the outside temperature of the refrigerator when the compressor is turned on, and changing the operating rate of the refrigerator compartment fan when the compressor is turned off; It consists in that it comprises a step.

이하, 본 발명에 따른 냉장실 운전 제어방법의 바람직한 일 실시예를 첨부한 도면을 참조하여 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the refrigerating chamber operation control method according to the present invention.

도 4는 본 발명에 따른 냉장실 운전 제어방법을 나타낸 흐름도이다.4 is a flowchart illustrating a refrigerating chamber operation control method according to the present invention.

도 4를 참조하면, 본 발명에 따른 냉장실 운전 제어방법은 먼저, 사용자가 냉장실의 온도조절 버튼(절전, 약, 중, 강)(미도시)을 누르면 냉장실온도 감지센서(22)가 냉장실 내부의 온도를 감지하고, 이에따라 냉장실팬(32)이 구동된다.4, in the refrigerating compartment operation control method according to the present invention, first, when the user presses the temperature control button (sleep, weak, medium, strong) (not shown) of the refrigerating compartment, the refrigerator compartment temperature sensor 22 is The temperature is sensed, and the refrigerating compartment fan 32 is driven accordingly.

만약, 상기 냉장실 내부의 온도를 감지하는 냉장실온도 감지센서(22)가 고장이 났을 경우에(S101) 중앙제어부(26)는 이를 감지하고 압축기(30)가 온 되었는가를 판단한다(S102).If the refrigerator compartment temperature sensor 22 that detects the temperature inside the refrigerator compartment is broken (S101), the central controller 26 detects this and determines whether the compressor 30 is on (S102).

상기 압축기(30)가 온되어 있으면 압축기(30)는 냉장고의 외기온도, 냉장실의 온도조절 버튼(절전, 약, 중, 강)에 따라 구동한다(S103).When the compressor 30 is turned on, the compressor 30 is driven according to the outside temperature of the refrigerator and the temperature control buttons (power saving, weak, medium, and strong) of the refrigerating chamber (S103).

이어, 상기 압축기(30)의 구동에 따라 냉장실팬이 구동한다(S104).Subsequently, the refrigerator compartment fan is driven according to the driving of the compressor 30 (S104).

즉, 상기 압축기(30) 온시의 냉장실팬 운전율은 중앙제어부(26)의 제어신호에 의해 냉장고의 외기온도에 따라 아래표 1과 같이 변한다.That is, the operation rate of the refrigerator compartment fan when the compressor 30 is turned on is changed as shown in Table 1 according to the outside air temperature of the refrigerator according to the control signal of the central controller 26.

압축기 온Compressor on 외기온도(RT)Ambient temperature (RT) 냉장실팬회전율Cold room fan turnover 온/오프시간(주기 20분)On / off time (20 minutes cycle) RT＜14℃RT <14 ℃ 5％5% 2분/18분2 minutes / 18 minutes 14℃＜RT＜26℃14 ℃ <RT <26 ℃ 15％15% 4분/16분4 minutes / 16 minutes RT＞26℃RT ＞ 26 ℃ 25％25% 6분/14분6 minutes / 14 minutes

그 이유는 압축기 온시에는 냉기가 응축기(미도시)에 충분히 공급되므로 냉장실팬이 같은 시간동안 운전할 경우 압축기 오프시보다 냉장실팬의 운전율이 적어지기 때문이다.The reason for this is that when the compressor is on, cold air is sufficiently supplied to the condenser (not shown), so that when the refrigerator fan is operated for the same time, the operation rate of the refrigerator compartment fan is lower than when the compressor is off.

만약, 압축기(30)의 오프시 냉장고의 외기온도에 따라 냉장실팬이 구동한다(S105).If the compressor 30 is turned off, the refrigerating chamber fan is driven according to the outside air temperature of the refrigerator (S105).

즉, 상기 압축기(30) 오프시의 냉장실팬 운전율은 중앙제어부(26)의 제어신호에 의해 냉장고의 외기온도에 따라 아래표 2와 같이 변한다.That is, the operation rate of the refrigerator compartment fan when the compressor 30 is off is changed as shown in Table 2 according to the outside air temperature of the refrigerator according to the control signal of the central controller 26.

압축기 오프Compressor off 외기온도(RT)Ambient temperature (RT) 냉장실팬회전율Cold room fan turnover 온/오프시간(주기 20분)On / off time (20 minutes cycle) RT＜14℃RT <14 ℃ 15％15% 2분/18분2 minutes / 18 minutes 14℃＜RT＜26℃14 ℃ <RT <26 ℃ 25％25% 4분/16분4 minutes / 16 minutes RT＞26℃RT ＞ 26 ℃ 35％35% 6분/14분6 minutes / 14 minutes

그 이유는 압축기 오프시에는 응축기(미도시)에 비축된 냉기로 냉장실에 냉기를 공급하므로 압축기 온시보다 냉장실팬의 운전율이 많아지기 때문이다.The reason for this is that when the compressor is turned off, the cold air stored in the condenser (not shown) is supplied with cold air to the refrigerating chamber so that the operation rate of the refrigerating chamber fan becomes larger than when the compressor is on.

따라서, 냉장고의 냉장실온도 감지센서의 고장시에 냉장고 외부에 설치된 외기온도 감지센서에 의해 감지된 온도 및 압축기의 온/오프에 따라 냉장실팬이 작동된다.Therefore, when the refrigerator temperature sensor of the refrigerator breaks down, the refrigerator compartment fan operates according to the temperature detected by the outside air temperature sensor installed outside the refrigerator and the on / off of the compressor.

본 발명에 따른 냉장실 운전 제어방법은 냉장고의 냉장실온도 감지센서의 고장시에 외기온도 감지센서에 감지된 온도에 따라 가변되는 압축기의 온/오프에 의해 냉장실팬이 동작함으로써 냉장고의 냉장실 내부에 들어 있는 음식물의 변질을 방지할 수 있는 효과가 있다.Refrigeration chamber operation control method according to the present invention is stored in the refrigerator compartment of the refrigerator by operating the refrigerator compartment by the on / off of the compressor variable according to the temperature detected by the ambient temperature sensor when the refrigerator compartment temperature sensor of the refrigerator failure There is an effect that can prevent food deterioration.

Claims (1)

냉장고의 통상운전 제어방법에 있어서,In the normal operation control method of the refrigerator, 상기 냉장고의 냉장실온도 감지센서가 고장인가를 판단하는 단계와;Determining whether the refrigerator compartment temperature sensor of the refrigerator is broken; 상기 냉장고의 냉장실온도 감지센서가 고장인 경우에 압축기가 온되었는지를 판단하는 단계와;Determining whether the compressor is turned on when the refrigerator compartment temperature sensor of the refrigerator is broken; 상기 압축기의 온시에 냉장고의 외기온도에 따라 냉장실팬의 운전율을 다르게 하는 단계와;Varying an operation rate of the refrigerating chamber fan according to the outside air temperature of the refrigerator when the compressor is turned on; 상기 압축기의 오프시에 냉장고의 외기온도에 따라 냉장실팬의 운전율을 다르게 하는 단계를 포함하여 이루어짐을 특징으로 하는 냉장실 운전 제어방법.And controlling the operation rate of the refrigerating compartment fan according to the outside air temperature of the refrigerator when the compressor is turned off.
KR1019970072084A 1997-12-22 1997-12-22 A controlling method of a refrigerator KR100260450B1 (en)

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