KR20090074292A - Refrigerator and method for controlling the same - Google Patents

Refrigerator and method for controlling the same Download PDF

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Publication number
KR20090074292A
KR20090074292A KR1020080000020A KR20080000020A KR20090074292A KR 20090074292 A KR20090074292 A KR 20090074292A KR 1020080000020 A KR1020080000020 A KR 1020080000020A KR 20080000020 A KR20080000020 A KR 20080000020A KR 20090074292 A KR20090074292 A KR 20090074292A
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KR
South Korea
Prior art keywords
temperature
refrigerator compartment
refrigerator
evaporator
compartment
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KR1020080000020A
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Korean (ko)
Inventor
오승환
최종철
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삼성전자주식회사
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Priority to KR1020080000020A priority Critical patent/KR20090074292A/en
Publication of KR20090074292A publication Critical patent/KR20090074292A/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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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
    • 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
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments

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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)
  • Defrosting Systems (AREA)

Abstract

A refrigerator and a method of controlling the same are provided to vary off condition of a cold room fan during a natural defrosting operation to improve natural defrosting efficiency and increase the humidity of the cold room. A cold room fan is turned on when a compressor is turned off(S130). The temperature of a cold room and the temperature of an evaporator of the cold room are sensed(S140,S150). The sensed temperatures are compared to each other(S160). When the temperature of the evaporator reaches the temperature of the cold room, the cold room fan is turned off(S170).

Description

냉장고 및 그 제어방법{REFRIGERATOR AND METHOD FOR CONTROLLING THE SAME}Refrigerator and its control method {REFRIGERATOR AND METHOD FOR CONTROLLING THE SAME}

본 발명은 냉장고 및 그 제어방법에 관한 것으로, 더욱 상세하게는 냉장고의 자연 제상효율을 향상시키고, 냉장실의 고내습도를 높일 수 있는 냉장고 및 그 제어방법에 관한 것이다.The present invention relates to a refrigerator and a control method thereof, and more particularly, to a refrigerator and a control method thereof capable of improving the natural defrosting efficiency of the refrigerator and increasing the high humidity resistance of the refrigerator compartment.

일반적으로, 냉장고는 냉동사이클에 의해 생성된 냉기를 순환시켜 냉동실과 냉장실의 고내온도를 제어함으로써 고내에 저장된 냉동식품과 냉장식품을 신선하게 보관하기 위한 장치이다.In general, the refrigerator is a device for freshly storing the frozen food and the refrigerated food stored in the refrigerator by circulating the cold air generated by the freezing cycle to control the internal temperature of the freezer compartment and the refrigerator compartment.

이러한 냉동사이클은 저온저압의 냉매를 압축하는 압축기와, 압축된 고온고압의 냉매를 외부 공기에 의해 응축시키는 응축기와, 응축된 냉매를 감압하여 팽창시키는 모세관과, 그 모세관으로부터 팽창된 냉매와 고내공기를 열교환시켜 냉기를 생성하는 냉장실증발기 및 그 냉장실증발기로부터 생성된 냉기를 냉장실 내로 송풍하는 냉장실팬을 포함하여 이루어진다.Such a refrigeration cycle includes a compressor for compressing a low-temperature, low-pressure refrigerant, a condenser for condensing the compressed high-temperature, high-pressure refrigerant by external air, a capillary tube for decompressing and expanding the condensed refrigerant, a refrigerant expanded from the capillary tube, and a high internal air pressure. And a refrigerating chamber evaporator which generates cold air by exchanging the air and a refrigerating chamber fan which blows cold air generated from the refrigerating chamber evaporator into the refrigerating compartment.

상기한 냉동사이클에 의한 냉각 운전 중에는 증발기에 주위의 수분이 얼어붙어 성에게 끼이게 되는데, 이러한 성에는 증발기의 효율을 크게 저하시키는 주요인으로 제거할 필요가 있다. 따라서, 냉장고에는 증발기에 성에가 결빙되지 않도록 하는 방법이 적용되거나, 증발기에 붙어 있는 성에가 제거되도록 하는 장치가 설치된다. 증발기에 성에가 결빙되지 않도록 하는 방법에는 자연 제상이라는 것이 있는데, 이는 압축기가 오프된 후 고내의 수분이 증발기에 달라붙지 못하도록 하거나 증발기 자체의 온도보다 상대적으로 온도가 높은 증발기 주위의 고내공기를 증발기측으로 순환시켜 증발기에 결빙되어 있는 성에를 제거되도록 하는 방법이다.During the cooling operation by the refrigerating cycle, the water around the evaporator freezes and becomes trapped in the castle, and this castle needs to be removed as a major factor that greatly reduces the efficiency of the evaporator. Therefore, the refrigerator is provided with a method of preventing frost from freezing on the evaporator, or an apparatus is installed to remove the frost attached to the evaporator. One way to prevent freezing of the frost on the evaporator is to use natural defrosting, which prevents moisture in the interior from sticking to the evaporator after the compressor is turned off, or the air inside the evaporator that is relatively hotter than the temperature of the evaporator to the evaporator side. It is a method to circulate to remove the frost frozen in the evaporator.

종래에는 압축기가 오프된 후, 냉장실증발기의 온도를 감지하여 냉장실증발기의 온도가 일정온도에 도달할 때까지 냉장실팬을 온 시켜 자연 제상을 수행한다. 한편, 냉장실증발기의 온도가 일정온도에 도달하면, 냉장실팬을 오프시켜 자연 제상을 종료한다.Conventionally, after the compressor is turned off, by detecting the temperature of the refrigerator compartment evaporator to perform a natural defrost by turning on the refrigerator compartment fan until the temperature of the refrigerator compartment evaporator reaches a certain temperature. On the other hand, when the temperature of the refrigerator compartment evaporator reaches a certain temperature, the refrigerator compartment fan is turned off to end natural defrosting.

하지만, 종래에는 상기한 자연 제상운전시 냉장실증발기의 온도가 일정온도에 도달하면, 냉장실팬을 오프시키기 때문에 자연 제상이 냉장실증발기의 온도가 일정온도에 도달하는 동안에만 이루어진다. 이로 인해, 냉장실증발기의 온도가 일정온도에 도달하였더라도 냉장실의 고내온도가 냉장실 증발기의 온도보다 높아 자연 제상이 좀더 가능한 구간에서도 자연 제상을 중지할 수밖에 없어 냉장실의 습도를 좀더 높일 수 없는 문제점이 있다.However, conventionally, since the refrigerator compartment fan is turned off when the temperature of the refrigerator compartment evaporator reaches a predetermined temperature during the natural defrosting operation, natural defrosting is performed only while the temperature of the refrigerator compartment evaporator reaches a certain temperature. Therefore, even if the temperature of the refrigerator compartment evaporator reaches a certain temperature, the internal temperature of the refrigerator compartment is higher than the temperature of the refrigerator compartment evaporator, so that natural defrosting can be stopped even in a section in which natural defrosting is possible, and thus the humidity of the refrigerator compartment can not be further increased.

따라서, 본 발명의 목적은 자연 제상운전시의 냉장실팬의 오프조건을 변경하여 냉장고의 자연 제상효율을 향상시키고, 냉장실의 고내습도를 높일 수 있는 냉장고 및 그 제어방법을 제공하는 것이다.Accordingly, an object of the present invention is to provide a refrigerator and a control method thereof, by changing the off condition of the refrigerator compartment fan during natural defrosting operation, thereby improving the natural defrosting efficiency of the refrigerator and increasing the high humidity resistance of the refrigerator compartment.

전술한 목적을 달성하기 위한 본 발명의 냉장고의 제어방법은 압축기의 오프시 냉장실팬을 온 시키는 단계와, 냉장실의 고내온도와 냉장실 증발기의 온도를 감지하는 단계와, 상기 감지된 고내온도와 냉장실 증발기온도를 비교하는 단계와, 상기 냉장실 증발기온도가 상기 고내온도에 도달하면, 상기 냉장실팬을 오프시키는 단계를 포함하는 것을 특징으로 한다.The control method of the refrigerator of the present invention for achieving the above object is the step of turning on the refrigerator compartment fan when the compressor is off, the step of sensing the internal temperature of the refrigerator compartment and the temperature of the refrigerator compartment evaporator, the sensed internal temperature and the refrigerator compartment evaporator Comparing the temperature, and if the refrigerator compartment evaporator temperature reaches the internal temperature, turning off the refrigerator compartment fan.

상기 냉장실 증발기온도가 상기 고내온도 미만이면, 상기 냉장실팬의 온 작동을 유지하는 단계를 포함하는 것을 특징으로 한다.If the refrigerating compartment evaporator temperature is less than the high temperature inside, it characterized in that it comprises a step of maintaining the on-operation of the refrigerator compartment fan.

또한, 본 발명의 다른 냉장고의 제어방법은 압축기의 오프시 냉장실팬을 온 시키는 단계와, 냉장실의 고내온도와 냉장실 증발기의 온도를 감지하는 단계와, 상기 감지된 고내온도와 냉장실 증발기온도를 비교하는 단계와, 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달하기 전이면 상기 냉장실팬의 온 작동을 유지시키고, 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달하면 상기 냉장실팬을 오프시키는 단계를 포함하는 것을 특징으로 한다.In addition, the control method of another refrigerator of the present invention comprises the steps of turning on the refrigerator compartment fan when the compressor is off, detecting the temperature of the refrigerator compartment evaporator and the temperature of the refrigerator compartment evaporator, and comparing the detected inside temperature and the refrigerator compartment evaporator temperature Maintaining a temperature of the refrigerator compartment fan when the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment, and turning off the refrigerator compartment fan when the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment. Characterized in that it comprises a.

또한, 본 발명의 냉장고는 냉장실로 냉기를 송풍하는 냉장실팬과, 냉장실 증발기의 온도를 감지하는 제1온도감지부와, 냉장실의 고내온도를 감지하는 제2온도감지부와, 압축기가 오프된 후부터 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달하기 전까지 상기 냉장실팬을 온 시키고, 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달한 후에는 상기 냉장실팬을 오프시키는 제어부를 포함하는 것을 특징으로 한다.In addition, the refrigerator of the present invention includes a refrigerator compartment fan for blowing cold air into the refrigerating compartment, a first temperature sensing unit for sensing the temperature of the refrigerating compartment evaporator, a second temperature sensing unit for sensing the internal temperature of the refrigerating compartment, and after the compressor is turned off. And a control unit which turns on the refrigerator compartment fan until the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment, and turns off the refrigerator compartment fan after the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment. It is done.

본 발명에 따르면, 압축기의 오프시 냉장실팬을 온 시킨 후 냉장실증발기의 온도가 냉장실의 고내온도에 도달하기 전까지는 냉장실팬의 온 작동을 유지시키고, 도달한 이후에는 냉장실팬을 오프시킴으로써 자연 제상효율을 향상시키고, 냉장실의 고내습도를 높일 수 있는 효과가 있다.According to the present invention, the defrosting efficiency is achieved by turning on the refrigerator compartment fan when the compressor is turned off and then maintaining the on-board operation of the refrigerator compartment fan until the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment. It is effective to improve the high humidity of the refrigerator compartment.

또한, 본 발명에 따르면, 냉장고의 주위온도, 도어개폐, 보관환경에 효과적으로 대응할 수 있어 냉장실증발기에 착상된 성에를 효과적으로 제거할 수 있는 효과가 있다.In addition, according to the present invention, it can effectively cope with the ambient temperature of the refrigerator, the door opening and closing, the storage environment has an effect that can effectively remove the frost on the refrigerator compartment evaporator.

또한, 본 발명에 따르면, 냉장고의 자연 제상효율이 향상됨에 따라 제상시간 및 제상불량 등을 줄일 수 있는 효과가 있다.In addition, according to the present invention, as the natural defrosting efficiency of the refrigerator is improved, there is an effect of reducing the defrost time and defrosting.

또한, 본 발명에 따르면, 냉장실증발기의 온도가 냉장실의 고내온도에 도달하기 전까지 냉장실팬을 온 시킬 수 있어 냉장실의 냉각 성능을 향상시킬 수 있고, 소비전력을 낮출 수 있는 효과가 있다.In addition, according to the present invention, the refrigerator compartment fan can be turned on until the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment, thereby improving the cooling performance of the refrigerator compartment and reducing the power consumption.

이하에서는 본 발명의 바람직한 실시예를 본 도면을 참조하여 상세하게 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1은 본 발명의 실시예에 따른 냉장고의 단면도를 도시한 것이다. 도 1에 도시된 바와 같이, 본 발명의 실시예에 따른 냉장고는 본체(10)의 일부를 형성하는 격벽(11)의 상부에 위치하고, 전면이 개방된 냉동실(12)과, 냉동실(12)의 전면 개방부를 개폐하는 냉동실도어(13)와, 격벽(11)의 하부에 위치하고 전면이 개방된 냉장실(14)과, 냉장실(14)의 전면 개방부를 개폐하는 냉장실도어(15)와, 본체(10)의 하부 후면부에 마련된 압축기(16)를 구비한다.1 is a cross-sectional view of a refrigerator according to an embodiment of the present invention. As shown in FIG. 1, the refrigerator according to the exemplary embodiment of the present invention is located above the partition 11 forming a part of the main body 10, and has a freezing chamber 12 having an open front surface and a freezing chamber 12. The freezer compartment door 13 which opens and closes the front opening part, the refrigerating compartment 14 located in the lower part of the partition 11, the front door is opened, the refrigerating compartment door 15 which opens and closes the front opening part of the refrigerating compartment 14, and the main body 10 Compressor 16 is provided in the lower rear portion of the).

냉동실(12) 및 냉장실(14)의 후면부와 본체사이에는 열교환을 수행하는 냉동실 열교환장치(30) 및 냉장실 열교환장치(40)가 마련된다.A freezer compartment heat exchanger 30 and a refrigerator compartment heat exchanger 40 are provided between the freezer compartment 12 and the rear part of the refrigerator compartment 14 and the main body to perform heat exchange.

냉동실(12) 및 냉장실(14) 벽면의 일지점에는 각각 냉동실 온도센서(17) 및 냉장실 온도센서(18)가 마련된다.The freezing chamber temperature sensor 17 and the refrigerating chamber temperature sensor 18 are provided at one point of the wall surface of the freezing chamber 12 and the refrigerating chamber 14, respectively.

그리고 냉동실(12) 및 냉장실(14) 내부에는 식품을 저장하기 위한 선반(19)과 보관용기(20)가 마련된다.The freezer compartment 12 and the refrigerating compartment 14 are provided with a shelf 19 and a storage container 20 for storing food.

냉동실 열교환장치(30)는 열 교환을 통해 냉동실내의 공기를 냉각시키는 냉 동실 증발기(31)와, 냉동실 증발기(31)의 상부에 설치되어 냉동실 증발기(31)를 통과한 냉기를 냉동실(12) 내부로 순환시키는 냉동실팬(32)를 구비한다. 냉동실 증발기(31)의 하부에는 냉동실팬(32)의 구동에 의해 고내공기를 흡입하기 위한 흡입구(34)가 형성되고, 냉동실(12) 후면에는 냉동실팬(32)에 의해 송풍된 냉기가 냉동실 내부에 고르게 토출되도록 하기 위한 복수의 토출구(35)가 형성된다.The freezer compartment heat exchanger (30) is a freezer compartment evaporator (31) for cooling the air in the freezer compartment through heat exchange, and the cold air passing through the freezer compartment evaporator (31) installed above the freezer compartment evaporator (31) inside the freezer compartment (12). It is provided with a freezing compartment fan 32 to circulate in the. A suction port 34 is formed at a lower portion of the freezer compartment evaporator 31 to drive internal air by driving the freezer compartment 32, and the cold air blown by the freezer compartment 32 is formed inside the freezer compartment. A plurality of ejection openings 35 are formed so as to evenly discharge them.

냉동실 증발기(31)의 상부에는 냉동실 증발기(31)의 온도를 측정하기 위한 제1제상센서(36)가 설치되는 데, 이 제1제상센서(36)는 부특성의 온도계수를 가지는 NTC(negative temperature coefficient) 서미스터를 사용한다.A first defrost sensor 36 for measuring the temperature of the freezer evaporator 31 is installed on the upper part of the freezer compartment evaporator 31, and the first defrost sensor 36 has a negative temperature coefficient of NTC (negative). temperature coefficient) is used.

냉동실 증발기(31)의 하부와 일측면에는 전류가 공급되면 열을 발생하는 전열선으로 이루어진 제1제상히터(37)가 마련된다.The first defrost heater 37 is formed on the lower side and one side of the freezer compartment evaporator 31, which is made of a heating wire that generates heat when a current is supplied.

냉장실 열교환장치(40)도 냉동실 열교환장치(30)와 유사한데, 냉장실 열교환장치(40)는 열교환을 통해 냉장실(14)내의 공기를 냉각시키는 냉장실 증발기(41)와, 냉장실 증발기(41)의 상부에 설치되어 냉장실 증발기(41)를 통과한 냉기를 냉장실(14) 내부로 순환시키는 냉장실팬(42)을 구비한다. 냉장실 증발기(41)의 하부에는 냉장실팬(42)의 구동에 의해 고내공기를 흡입하기 위한 흡입유로(44)가 마련되고, 냉장실(14)후면에는 냉장실팬(42)에 의해 송풍된 냉기가 냉장실(14) 내부에 고르게 토출되도록 하기 위한 복수의 토출구(45)가 형성된다.The refrigerator compartment heat exchanger 40 is similar to the freezer compartment heat exchanger 30. The refrigerator compartment heat exchanger 40 is a refrigerator compartment evaporator 41 that cools the air in the refrigerator compartment 14 through heat exchange, and an upper portion of the refrigerator compartment evaporator 41. It is provided in the refrigerator compartment fan 42 which circulates the cold air which passed through the refrigerator compartment evaporator 41 into the refrigerator compartment 14 inside. A suction flow path 44 for suctioning the air inside the refrigerator compartment is provided in the lower part of the refrigerator compartment evaporator 41, and the cold air blown by the refrigerator compartment fan 42 in the rear side of the refrigerator compartment 14 is a refrigerator compartment. (14) A plurality of discharge ports 45 are formed to evenly discharge the inside.

냉장실 증발기(41)의 상부에는 냉장실 증발기(41)의 온도를 측정하기 위한 제2제상센서(46)가 설치되는 데, 이 제2제상센서(46)도 제1제상센서(36)처럼 NTC 서미스터를 사용한다.A second defrost sensor 46 for measuring the temperature of the refrigerating compartment evaporator 41 is installed on the upper part of the refrigerating compartment evaporator 41, and the second defrost sensor 46 is also an NTC thermistor like the first defrost sensor 36. Use

또한, 냉장실 증발기(41)의 하부와 일측면에는 전열선으로 이루어진 제2제상히터(47)가 마련된다.In addition, a second defrost heater 47 made of a heating wire is provided on the lower side and one side of the refrigerating chamber evaporator 41.

도 2에 도시된 바와 같이, 도 1에 도시된 냉장고는 상기한 구성요소 외에도 냉장고의 전체적인 동작을 제어하는 제어부(50)를 구비한다.As illustrated in FIG. 2, the refrigerator illustrated in FIG. 1 includes a controller 50 that controls the overall operation of the refrigerator in addition to the above components.

상술한 바와 같이, 종래에는 압축기의 오프될 때 수행되는 자연 제상시 냉장실팬(43)을 온 시키고, 냉장실 증발기(41)의 온도가 일정온도에 도달하면, 냉장실팬(43)을 오프시킨다. 이로 인해, 자연 제상이 냉장실 증발기(41)의 온도가 일정온도에 도달하는 동안에만 이루어진다. 하지만, 냉장실 증발기(41)의 온도가 일정온도에 도달하였더라도 냉장실(14)의 고내온도가 냉장실 증발기(41)의 온도보다 높아 자연 제상이 좀더 가능한 구간에서도 자연 제상을 중지할 수밖에 없어 냉장실 증발기(41)에 착상된 성에가 습기화되지 않아 냉장실의 습도를 좀더 높일 수 없었다.As described above, conventionally, the refrigerator compartment fan 43 is turned on during natural defrosting performed when the compressor is turned off, and when the temperature of the refrigerator compartment evaporator 41 reaches a predetermined temperature, the refrigerator compartment fan 43 is turned off. For this reason, natural defrosting takes place only while the temperature of the refrigerator compartment evaporator 41 reaches a certain temperature. However, even if the temperature of the refrigerator compartment evaporator 41 reaches a certain temperature, the internal temperature of the refrigerator compartment 14 is higher than the temperature of the refrigerator compartment evaporator 41, so that natural defrosting can be stopped even in a section in which natural defrosting is possible. ), The frost on the refrigerator could not increase the humidity in the fridge.

따라서, 상기한 제어부(50)는 먼저, 냉장실(12)의 고내온도가 설정온도에 도달하여 압축기(16)가 오프되면, 냉장실팬(43)을 온 시킨다. 그리고, 냉장실 온도센서(18)를 통해 냉장실(14)의 고내온도를 감지함과 함께 제2제상센서(46)를 통해 냉장실 증발기(41)의 온도를 감지한 후 이 둘의 온도를 비교하여 도 3에 도시된 바와 같이, 냉장실 증발기의 온도가 냉장실(14)의 고내온도이상이면, 냉장실팬(43)을 오프시킨다. 이로 인해, 냉장고의 주위온도의 변화에 대해서도 습공기화할 수 있는 양을 늘릴 수 있으며, 자연 제상 중에 잦은 도어개폐에도 냉장실의 고내온도상승을 막을 수 있는 등 냉장고의 사용 환경에 효과적으로 대응할 수 있다. 또한, 자연 제상시 여분의 냉기를 더 이용할 수 있어 부하 대응능력을 향상시킬 수 있고, 냉장실 증발기(41)에 착상된 성에를 효과적으로 제거할 수 있으며, 착상된 성에의 습기화로 인해 냉장실(14)의 고내습도를 높일 수 있다. 또한, 냉장고의 자연 제상효율이 향상됨에 따라 제상시간 및 제상불량 등을 줄일 수 있고, 냉장실 증발기(41)의 온도가 냉장실(14)의 고내온도에 도달하기 전까지 냉장실팬(43)을 온 시킬 수 있어 냉장실(14)의 냉각 성능을 향상시킬 수 있고, 소비전력을 낮출 수 있다.Accordingly, the controller 50 first turns on the refrigerating compartment fan 43 when the internal temperature of the refrigerating compartment 12 reaches the set temperature and the compressor 16 is turned off. In addition, the temperature inside the refrigerator compartment 14 is sensed through the refrigerator compartment temperature sensor 18, and the temperature of the refrigerator compartment evaporator 41 is sensed through the second defrost sensor 46. As shown in Fig. 3, when the temperature of the refrigerating compartment evaporator is higher than the internal temperature of the refrigerating compartment 14, the refrigerating compartment fan 43 is turned off. As a result, the amount of wet air can be increased in response to changes in the ambient temperature of the refrigerator, and it is possible to effectively cope with the use environment of the refrigerator, such as preventing the rise of the internal temperature of the refrigerator compartment even during frequent door opening and closing during natural defrosting. In addition, it is possible to further use the extra cold air during natural defrosting to improve the load responsiveness, to effectively remove the frost formed on the refrigerating chamber evaporator 41, the moisture of the frost formed in the refrigerator compartment 14 High humidity can be increased. In addition, as the defrosting efficiency of the refrigerator is improved, defrosting time and defrosting defects can be reduced, and the refrigerator compartment fan 43 can be turned on until the temperature of the refrigerator compartment evaporator 41 reaches the internal temperature of the refrigerator compartment 14. Therefore, the cooling performance of the refrigerating chamber 14 can be improved, and power consumption can be reduced.

상기한 제어부(50)의 동작을 도 4를 참조하여 살펴보면, 먼저, 제어부(50)는 단계 S100에서 냉장실 온도센서(18)를 통해 냉장실(14)의 고내온도를 감지한다.Looking at the operation of the control unit 50 with reference to Figure 4, first, the control unit 50 detects the internal temperature of the refrigerator compartment 14 through the refrigerator compartment temperature sensor 18 in step S100.

냉장실(14)의 고내온도 감지 후 단계 S110에서 냉장실(14)의 고내온도(Tr)와 설정온도(Tf)를 비교하여 냉장실(14)의 고내온도(Tr)가 설정온도(Tf) 이하이면, 단계 S120에서 압축기(16)를 오프시킨다.After detecting the inside temperature of the refrigerator compartment 14 and comparing the inside temperature Tr and the set temperature Tf of the refrigerator compartment 14 in step S110, if the inside temperature Tr of the refrigerator compartment 14 is less than or equal to the set temperature Tf, In step S120, the compressor 16 is turned off.

압축기(16) 오프 후 단계 S130에서 냉장실팬(43)을 온 시킨다. 이에 따라, 냉기를 냉장실(14)로 송풍하고, 냉장실(14) 내의 고내공기를 흡입하여 냉장실 증발기(41)에 착상된 성에를 제거하고, 성에의 습기화로 인해 냉장실(14)의 고내습도가 점차 높아지게 된다.After the compressor 16 is turned off, the refrigerator compartment fan 43 is turned on in step S130. Accordingly, the cold air is blown into the refrigerating chamber 14, the high-temperature air in the refrigerating chamber 14 is sucked to remove frost formed on the refrigerating chamber evaporator 41, and the high humidity resistance of the refrigerating chamber 14 is gradually increased due to the humidity of the frost. Will increase.

냉장실팬(43)의 온 후 단계 S140에서 냉장실 온도센서(18)를 통해 냉장실(14)의 고내온도를 감지하고, 단계 S150에서 냉장실 증발기(41)의 온도를 감지한다.After the refrigerating compartment fan 43 is turned on, in step S140, the inside temperature of the refrigerating compartment 14 is sensed through the refrigerating compartment temperature sensor 18, and the temperature of the refrigerating compartment evaporator 41 is sensed in step S150.

냉장실(14)의 고내온도와 냉장실 증발기(41)의 온도를 감지한 후 단계 S160에서 냉장실(14)의 고내온도(Tr)와 냉장실 증발기(41)의 온도(Te)를 비교하여 냉장실 증발기(41)의 온도(Te)가 냉장실(14)의 고내온도(Tr) 이상이면, 냉장실팬(43)을 오프시키고, 그렇지 않으면, 단계 S130으로 리턴하여 이하의 단계를 계속 수행한다. 따라서, 자연 제상시 냉장실 증발기(41)의 온도(Te)가 냉장실(14)의 고내온도(Tr)보다 낮은 구간에서는 냉장실팬(43)이 온 되고, 냉장실 증발기(41)의 온도(Te)가 냉장실(14)의 고내온도(Tr)보다 높은 구간에서는 냉장실팬(43)을 오프시킴으로써 자연 제상효율을 향상시키고, 냉장실(14)의 고내습도를 높일 수 있으며, 냉각성능을 향상시킬 수 있게 된다.After detecting the inside temperature of the refrigerating compartment 14 and the temperature of the refrigerating compartment evaporator 41, in step S160, the inside temperature Tr of the refrigerating compartment 14 is compared with the temperature Te of the refrigerating compartment evaporator 41 to compare the refrigerating compartment evaporator 41. If the temperature Te) is equal to or higher than the internal temperature Tr of the refrigerating chamber 14, the refrigerating chamber fan 43 is turned off, and if not, the flow returns to step S130 to continue the following steps. Therefore, in a section where the temperature Te of the refrigerating compartment evaporator 41 is lower than the internal temperature Tr of the refrigerating compartment 14 during natural defrosting, the refrigerating compartment fan 43 is turned on, and the temperature Te of the refrigerating compartment evaporator 41 is In the section higher than the internal temperature Tr of the refrigerating chamber 14, by turning off the refrigerating chamber fan 43, the natural defrosting efficiency can be improved, the high humidity resistance of the refrigerating chamber 14 can be increased, and the cooling performance can be improved.

단계 S170 후 미리 설정된 루틴으로 이동하여 설정된 제어를 수행한다.After the step S170, the controller moves to the preset routine and performs the set control.

도 1은 본 발명의 실시예에 따른 냉장고의 단면도이다.1 is a cross-sectional view of a refrigerator according to an embodiment of the present invention.

도 2는 도 1에 도시된 냉장고의 개략적인 제어블록도이다.FIG. 2 is a schematic control block diagram of the refrigerator illustrated in FIG. 1.

도 3은 본 발명의 실시예에 따른 냉장고의 자연 제상시의 냉장실팬의 작동을 보인 타이밍도이다.Figure 3 is a timing diagram showing the operation of the refrigerator compartment fan during natural defrosting of the refrigerator according to an embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 냉장고의 제어방법에 대한 제어흐름도이다.4 is a control flowchart of a control method of a refrigerator according to an embodiment of the present invention.

*도면의 주요 기능에 대한 부호의 설명** Description of the symbols for the main functions of the drawings *

16 : 압축기 17 : 냉동실온도센서16 compressor 17 freezer temperature sensor

18 : 냉장실온도센서 33 : 냉동실팬18: refrigerator compartment temperature sensor 33: freezer compartment fan

36 : 제1제상센서 37 : 제1제상히터36: first defrost sensor 37: first defrost heater

43 : 냉장실팬 46 : 제2제상센서43: refrigerator compartment fan 46: second defrost sensor

47 : 제2제상히터 50 : 제어부47: second defrost heater 50: control unit

Claims (4)

압축기의 오프시 냉장실팬을 온 시키는 단계;Turning on the refrigerator compartment fan when the compressor is turned off; 냉장실의 고내온도와 냉장실 증발기의 온도를 감지하는 단계;Sensing the temperature of the refrigerator compartment and the temperature of the refrigerator compartment evaporator; 상기 감지된 고내온도와 냉장실 증발기온도를 비교하는 단계; 및Comparing the sensed internal temperature with a refrigerator compartment evaporator temperature; And 상기 냉장실 증발기온도가 상기 고내온도에 도달하면, 상기 냉장실팬을 오프시키는 단계를 포함하는 냉장고의 제어방법.And turning off the refrigerator compartment fan when the refrigerator compartment evaporator temperature reaches the internal temperature of the refrigerator compartment. 제1항에 있어서,The method of claim 1, 상기 냉장실 증발기온도가 상기 고내온도 미만이면, 상기 냉장실팬의 온 작동을 유지하는 단계를 포함하는 것을 특징으로 하는 냉장고의 제어방법.And if the refrigerating compartment evaporator temperature is less than the high internal temperature, maintaining the on-operation of the refrigerating compartment fan. 압축기의 오프시 냉장실팬을 온 시키는 단계;Turning on the refrigerator compartment fan when the compressor is turned off; 냉장실의 고내온도와 냉장실 증발기의 온도를 감지하는 단계;Sensing the temperature of the refrigerator compartment and the temperature of the refrigerator compartment evaporator; 상기 감지된 고내온도와 냉장실 증발기온도를 비교하는 단계;Comparing the sensed internal temperature with a refrigerator compartment evaporator temperature; 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달하기 전이면 상기 냉장실팬의 온 작동을 유지시키고, 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달하면 상기 냉장실팬을 오프시키는 단계를 포함하는 것을 특징으로 하는 냉장고의 제어방법.Maintaining the on-operation of the refrigerator compartment fan when the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment, and turning off the refrigerator compartment fan when the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment. Control method of a refrigerator, characterized in that. 냉장실로 냉기를 송풍하는 냉장실팬;A refrigerator compartment fan for blowing cold air into the refrigerator compartment; 냉장실 증발기의 온도를 감지하는 제1온도감지부;A first temperature sensing unit sensing a temperature of the refrigerating compartment evaporator; 냉장실의 고내온도를 감지하는 제2온도감지부;A second temperature sensing unit sensing a high temperature inside the refrigerator compartment; 압축기가 오프된 후부터 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달하기 전까지 상기 냉장실팬을 온 시키고, 상기 냉장실 증발기의 온도가 상기 냉장실의 고내온도에 도달한 후에는 상기 냉장실팬을 오프시키는 제어부를 포함하는 것을 특징으로 하는 냉장고.A control unit which turns on the refrigerator compartment fan after the compressor is turned off until the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment, and turns off the refrigerator compartment fan after the temperature of the refrigerator compartment evaporator reaches the internal temperature of the refrigerator compartment Refrigerator comprising a.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120293A1 (en) * 2010-03-30 2011-10-06 合肥美的荣事达电冰箱有限公司 Air cooled refrigerator, control method and control system thereof
WO2020111590A1 (en) * 2018-11-30 2020-06-04 삼성전자주식회사 Refrigerator and method for controlling same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120293A1 (en) * 2010-03-30 2011-10-06 合肥美的荣事达电冰箱有限公司 Air cooled refrigerator, control method and control system thereof
US8677771B2 (en) 2010-03-30 2014-03-25 Hefei Midea Rongshida Refrigerator Co., Ltd. Air cooled refrigerator, method and system of controlling the same
WO2020111590A1 (en) * 2018-11-30 2020-06-04 삼성전자주식회사 Refrigerator and method for controlling same
EP3859255B1 (en) * 2018-11-30 2023-12-27 Samsung Electronics Co., Ltd. Refrigerator

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