KR100203988B1 - Cooling method for fixed temperature of refrigerator - Google Patents

Cooling method for fixed temperature of refrigerator Download PDF

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Publication number
KR100203988B1
KR100203988B1 KR1019960073800A KR19960073800A KR100203988B1 KR 100203988 B1 KR100203988 B1 KR 100203988B1 KR 1019960073800 A KR1019960073800 A KR 1019960073800A KR 19960073800 A KR19960073800 A KR 19960073800A KR 100203988 B1 KR100203988 B1 KR 100203988B1
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South Korea
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temperature
refrigerator
compartment
compressor
preset
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KR1019960073800A
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Korean (ko)
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KR19980054634A (en
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박형남
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전주범
대우전자주식회사
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Publication of KR19980054634A publication Critical patent/KR19980054634A/en
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Publication of KR100203988B1 publication Critical patent/KR100203988B1/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
    • F25D29/005—Mounting of control 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
    • 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
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

본 발명은 냉장실내의 온도를 일정하게 유지하기 위한 냉장고의 제어방법에 관한 것으로, 냉동실의 센서에서 감지된 냉동실의 온도와 기설정된 냉동실의 안정온도를 비교하는 제1단계, 냉동실의 온도가 기설정온도보다 낮으면 압축기를 기동하지 않고 기설정온도보다 높으면 압축기를 기동하는 제2단계, 냉장실의 온도를 감지하여 기설정된 냉장실의 안정온도와 비교하는 제3단계, 및 냉장실의 온도가 기설정온도보다 낮으면 냉장실팬을 기동하지 않고 기설정온도보다 높으면 냉장실팬을 기동하는 제4단계를 구비하여 이루어진 것을 특징으로 한다.The present invention relates to a control method of a refrigerator for maintaining a constant temperature in a refrigerating compartment. The first step of comparing a temperature of a freezer compartment detected by a sensor of a freezer compartment with a stable temperature of a preset freezer compartment, the temperature of the freezer compartment is preset When the temperature is lower than the compressor, the second stage of starting the compressor is higher than the preset temperature, the third stage of detecting the temperature of the refrigerator compartment and comparing it with the stable temperature of the preset refrigerator compartment, and the temperature of the refrigerator compartment is higher than the preset temperature. And a fourth step of starting the refrigerator compartment fan if the temperature is higher than the preset temperature if the refrigerator is not low.

Description

냉장고의 정온냉장방법How to cool your refrigerator

본 발명은 냉장고의 제어방법에 관한 것으로, 특히 냉장실내의 온도를 일정하게 유지하기 위한 냉장고의 제어방법에 관한 것이다.The present invention relates to a method for controlling a refrigerator, and more particularly, to a method for controlling a refrigerator for maintaining a constant temperature in a refrigerator compartment.

냉장고의 냉동싸이클을 살펴보면, 일반적으로 압축기에서 토출된 고온고압의 냉매가스가 응축기를 통과하면서 외부로 열이 방출되어 고압의 액상냉매가 된 후에, 드라이어를 통과하면서 고압의 액상냉매는 불순물과 수분 등이 제거되어 캐필러리튜브를 거치게 되며, 캐필러리튜브를 통과하면서 액상냉매는 증발하기 쉬운 기액 혼합상태로 팽창되어 증발기를 통해 주변의 열을 흡수하여 가스화되는 순환반복에 의해 냉장고에 냉기공급이 이루어진다. 상기 냉동싸이클에 있어서, 증발기의 냉매가 압축기로 흡입되기 전에 저온저압인 액상냉매가 주위의 열을 흡수하여 열교환되는 증발점열에 의해 가스화되어 압축기로 흡입되는 과정에서 순수한 기체상태의 냉매만이 압축기로 흡입되는 것을 높일 목적으로, 이들 증발기와 압축기 사이에 기액분리기인 어큐뮬레이터를 연결시키고 있다. 상기 어큐뮬레이터는 저온저압의 액상냉매가 압축기로 곧바로 흡입되어 압축기의 흡입파이프 냉매통로 입구부분이 빙결되는 현상을 방지한다.Looking at the refrigeration cycle of the refrigerator, in general, the high-temperature high-pressure refrigerant gas discharged from the compressor passes through the condenser, the heat is released to the outside to become a high-pressure liquid refrigerant, and then the high-pressure liquid refrigerant through the dryer through the impurities and moisture This is removed and passes through the capillary tube, while passing through the capillary tube, the liquid refrigerant expands into a gas-liquid mixed state that is easy to evaporate, and the cold air is supplied to the refrigerator by a circulation repetition that absorbs the surrounding heat through the evaporator and gasifies it. Is done. In the refrigerating cycle, before the refrigerant of the evaporator is sucked into the compressor, the liquid refrigerant having a low temperature and low pressure absorbs the surrounding heat and is gasified by evaporation rupture, which is exchanged by heat, to be sucked into the compressor. In order to increase suction, an accumulator, which is a gas-liquid separator, is connected between these evaporators and a compressor. The accumulator prevents the low-temperature low-pressure liquid refrigerant is sucked directly into the compressor to freeze the suction pipe refrigerant passage inlet portion of the compressor.

종래, 냉장실 위주의 냉각방식인 냉장고의 경우, 첨부도면 도3에서처럼 냉장실의 온도를 감지하는 냉장실 온도센서(31)와, 상기 센서(31)에서 감지된 온도를 마이콤(33) 입력신호도 변환하는 센서신호 감지수단(32)과, 마이콤(33)의 제어신호에 따라 압축기(35) 및 냉장실팬(36)을 각각 구동하는 구동수단(34)으로 된 냉각제어시스템을 이용하여 냉장센서의 온도변화에 따라 설정된 온도기준치 이상이 되면 압축기를 온/오프 구동시키는 냉장센서 연종방식을 사용하고 있다.Conventionally, in the case of a refrigerator based on a refrigerating compartment, a refrigerating compartment temperature sensor 31 for sensing a temperature of a refrigerating compartment and a temperature detected by the sensor 31 are also converted into an input signal of the microcomputer 33 as shown in FIG. 3. Temperature change of the refrigerating sensor using a cooling control system comprising a sensor signal detecting means 32 and a driving means 34 driving the compressor 35 and the refrigerating chamber fan 36 in accordance with the control signal of the microcomputer 33. When the temperature is higher than the set temperature reference value, the refrigeration sensor type that drives the compressor on / off is used.

이때, 상기 압축기가 안정된 상태의 내부기압은 대략 9∼10기압 정도이나, 압축기가 가동을 시작하여 일정시간동안 냉동사이클을 수행하게 되면, 그 내부 기압이 14∼15기압정도로 상승하게 되므로, 다음 냉동사이클을 수행하기 위해서는 4∼5기압 정도가 감소되는 압축기내의 기압이 안정화하는 시간이 필요하게 된다.At this time, the internal pressure of the compressor in a stable state is about 9 to 10 atmospheres, but when the compressor starts operation and performs a refrigeration cycle for a predetermined time, the internal pressure rises to about 14 to 15 atmospheres. In order to perform the cycle, it takes time for the air pressure in the compressor to stabilize by about 4 to 5 atmospheres.

따라서, 압축기의 온/오프 운전주기가 짧으면 압축기에 무리한 손상이 가해지기 때문에 압축기를 40∼50분 주기로 제어할 수 있도록 냉동사이클의 주기를 조절해야 하므로, 냉장실 내의 온도편차가 심해지는 문제가 있다.Therefore, if the on / off operation cycle of the compressor is short, excessive damage is caused to the compressor, so the cycle of the refrigeration cycle must be adjusted so that the compressor can be controlled every 40 to 50 minutes.

본 발명은 상기한 종래의 문제점을 해소하기 위하여 안출된 것으로, 압축기의 운전은 냉동실의 온도변화에 따라 제어하되, 냉장실팬은 냉장실의 온도변화에 따라 제어하여 압축기에 손상을 가함이 없이 냉장실팬을 수시로 운전하여 고내의 온도를 일정하게 유지시킬 수 있는 방법을 제공하는데 그 목적이 있다.The present invention has been made in order to solve the above-mentioned conventional problems, the operation of the compressor is controlled according to the temperature change of the freezer compartment, the refrigerator compartment fan is controlled according to the temperature change of the refrigerating compartment to the refrigerator compartment fan without damaging the compressor. The purpose is to provide a method that can be operated at any time to maintain a constant temperature in the air.

상기한 목적을 달성하기 위한 본 발명에 따른 일 실시예의 냉장고의 정온냉장 방법은, 냉동실의 센서에서 감지된 냉동실의 온도와 기설정된 냉동실의 안정온도를 비교하는 제1단계, 냉동실의 온도가 기설정 온도보다 낮으면 압축기를 기동하지 않고 기설정 온도보다 높으면 압축기를 기동하는 제2단계, 냉장실의 온도를 감지하여 기설정된 냉장실의 안정온도와 비교하는 제3단계, 및 냉장실의 온도가 기설정 온도보다 낮으면 냉장실팬을 기동하지 않고 기설정 온도보다 높으면 냉장실팬을 기동하는 제4단계를 구비하여 이루어진 것을 특징으로 한다.In the constant temperature refrigeration method of the refrigerator according to the embodiment of the present invention for achieving the above object, the first step of comparing the temperature of the freezer compartment detected by the sensor of the freezer compartment and the stable temperature of the preset freezer compartment, the temperature of the freezer compartment is preset If the temperature is lower than the temperature, the second stage of starting the compressor if the temperature is higher than the preset temperature, the third stage of detecting the temperature of the refrigerator compartment and comparing it with the stable temperature of the preset refrigerator compartment, and the temperature of the refrigerator compartment is higher than the preset temperature. It is characterized in that it comprises a fourth step of starting the refrigerator compartment fan if the temperature is higher than the preset temperature if the refrigerator is low.

상기한 과정에 있어서, 상기 압축기를 온/오프하는 냉동실의 온도갭은 대략 4℃∼6℃ 정도이고, 상기 냉동실팬은 온/오프 온도갭은 0.35℃∼0.5℃ 정도의 범위로 하여, 압축기의 운전주기가 대략 30∼50분 정도이고, 냉장실팬의 운전주기는 5∼10분 정도가 되어 압축기에 무리한 손상을 가함이 없이 냉장실내에 냉기의 토출을 자주 행함으로써 고내의 온도를 일정하게 유지하게 한다.In the above process, the temperature gap of the freezer compartment for turning on / off the compressor is about 4 ° C to 6 ° C, and the freezer compartment fan has an on / off temperature gap of about 0.35 ° C to 0.5 ° C. The operation cycle is about 30 to 50 minutes, and the operation period of the refrigerating fan is about 5 to 10 minutes, so that cold air is frequently discharged in the refrigerating chamber without excessive damage to the compressor, thereby maintaining a constant temperature in the refrigerator. .

제1도는 본 발명에 따른 냉장고의 정온냉장을 위한 블록회로도.1 is a block circuit diagram for constant temperature refrigeration of a refrigerator according to the present invention.

제2도는 본 발명에 따른 냉장고의 정온냉장방법을 순차적으로 도시하고 있는 흐름도.2 is a flowchart sequentially illustrating a method for cooling a constant temperature of a refrigerator according to the present invention.

제3도는 종래의 냉장실 제어장치의 블록도이다.3 is a block diagram of a conventional refrigerator compartment control device.

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

11 : 냉동온도센서 12 : 냉장온도센서11: refrigeration temperature sensor 12: refrigeration temperature sensor

13 : 센서신호 감지수단 14 : 마이콤13: sensor signal detection means 14: micom

15 : 구동수단 16 : 접점릴레이15: driving means 16: contact relay

17 : 압축기 18 : 냉장실팬17 compressor 18 refrigeration chamber fan

이하, 첨부도면을 참조하여 본 발명에 따른 냉장고의 정온냉장방법을 보다 상세히 설명하기로 한다.Hereinafter, the constant temperature refrigeration method of the refrigerator according to the present invention with reference to the accompanying drawings will be described in more detail.

도1은 본 발명에 따른 냉장고의 정온냉장을 위한 블록회로도이고, 도2는 본 발명에 따른 냉장고의 정온냉장방법을 순차적으로 도시하고 있는 흐름도이다.1 is a block circuit diagram for the constant temperature refrigeration of the refrigerator according to the present invention, Figure 2 is a flow chart illustrating a constant temperature refrigeration method of the refrigerator according to the present invention sequentially.

상기 도1을 참조하여 본 발명에 따른 냉장고의 정온냉장을 위한 회로의 구성을 살펴보면, 먼저 냉동실의 온도변화를 감지하는 냉동온도센서(11)와, 냉장실의 온도변화를 감지하기 위한 냉장온도센서(12)와, 상기 냉동온도 및 냉장온도센서의 신호를 감지하기 위한 센서신호 감지수단(13)과, 냉동실에 설치되어서 냉장실에 냉기를 토출시키는 냉장실팬(18)과, 냉기를 공급하기 위한 압축기(17)와, 상기 압축기(17)와 냉장실팬(18)을 구동하기 위한 구동수단(15)과, 상기 압축기와 냉장실팬의 기동을 스위칭하는 접점릴레이(16), 및 상기 센서(11, 12)의 온도변화에 따라 상기 구동수단(15)을 구동시키기 위한 제어신호를 출력하는 마이콤(14)을 포함한 구성으로 되어 있다.Referring to the configuration of a circuit for constant temperature refrigeration of the refrigerator according to the present invention with reference to FIG. 1, first, a freezing temperature sensor 11 for detecting a temperature change of a freezer compartment, and a refrigerating temperature sensor for detecting a temperature change of a refrigerator compartment ( 12), a sensor signal detecting means 13 for detecting a signal of the freezing temperature and the refrigerating temperature sensor, a refrigerating chamber fan 18 installed in the freezing compartment to discharge cold air into the refrigerating compartment, and a compressor for supplying cold air ( 17), drive means 15 for driving the compressor 17 and the refrigerating compartment fan 18, a contact relay 16 for switching the starting of the compressor and the refrigerating compartment fan, and the sensors 11 and 12. It is configured to include a microcomputer 14 for outputting a control signal for driving the drive means 15 in accordance with the temperature change of.

상기한 구성의 블록회로도와 도2를 참조하여 본 발명의 냉장고 정온냉장방법을 상세히 살펴보면, 먼저, 마이콤에서 냉동실의 센서에서 감지된 냉동실의 온도와 기설정된 냉동실의 안정온도를 비교하여(S21), 냉동실의 온도가 기설정온도보다 낮으면 압축기를 기동하지 않고(S23) 기설정온도보다 높으면 압축기를 기동한다(S22). 이때, 상기 압축기가 온/오프되는 온도의 갭을 보면 대략 4℃∼6℃ 정도이고, 압축기를 운전하는 운전주기는 대략 30∼50분 정도로서, 종래의 방법과는 달리 압축기에 무리한 손상을 가함이 없이 냉장고를 운전할 수 있게 되는 것이다. 이어서, 마이콤을 통해 냉장실의 온도를 감지하여 기설정된 냉장실의 안정온도를 비교한 후(S24), 냉장실의 온도가 기설정온도보다 낮으면 냉장실팬을 기동하지 않고(S26) 기설정온도보다 높으면 냉장실팬을 기동하는 것으로(S25), 상기 냉동실팬을 온/오프하는 냉장실의 온도갭을 0.35℃∼0.5℃ 정도의 범위로 제어하고, 냉장실팬을 운전하는 운전주기는 5∼10분 정도가 되도록 냉장실내에 냉기의 토출을 자주 행함으로써 고내의 온도를 일정하게 유지할 수 있게 한다.Referring to the block circuit diagram of the configuration described above with reference to Figure 2 in detail the refrigerator constant temperature refrigeration method of the present invention, first, by comparing the temperature of the freezer compartment detected by the sensor of the freezer compartment in the microcomputer and the stable temperature of the predetermined freezer compartment (S21), If the temperature of the freezer compartment is lower than the preset temperature, the compressor is not started (S23). If the temperature is higher than the preset temperature, the compressor is started (S22). At this time, when the gap between the temperature of the compressor is turned on / off is about 4 ℃ ~ 6 ℃, the operation cycle of operating the compressor is about 30 to 50 minutes, unlike the conventional method does not cause excessive damage to the compressor You can operate the refrigerator without it. Subsequently, after sensing the temperature of the refrigerating compartment through a microcomputer and comparing the stable temperature of the preset refrigerating compartment (S24), if the temperature of the refrigerating compartment is lower than the preset temperature, the refrigerator compartment fan is not started (S26). By starting the fan (S25), the temperature gap of the refrigerating compartment for turning on / off the freezer compartment is controlled in the range of about 0.35 ° C to 0.5 ° C, and the operation period for operating the refrigerating fan is about 5 to 10 minutes. By frequently discharging the cold air in the inside, it is possible to keep the temperature in the refrigerator constant.

따라서, 상술한 바의 본 발명의 방법에 의하면, 상기 압축기의 온/오프 갭은 대략 4℃∼6℃ 정도로 하고, 상기 냉동실팬을 온/오프 갭은 0.35℃∼0.5℃ 정도의 범위로 하여, 압축기에 무리한 손상을 가함이 없이 냉장실내에 냉기의 토출을 자주 행함으로써 고내의 온도를 일정하게 유지하게 하는 효과가 있다.Therefore, according to the method of the present invention as described above, the on / off gap of the compressor is approximately 4 ℃ to 6 ℃, the on-off gap of the freezer compartment in the range of 0.35 ℃ to 0.5 ℃, There is an effect that the temperature in the refrigerator is kept constant by frequently discharging cold air in the refrigerating chamber without causing excessive damage to the compressor.

Claims (2)

냉동실의 센서에서 감지된 냉동실의 온도와 기설정된 냉동실의 안정온도를 비교하는 제1단계, 냉동실의 온도가 기설정온도보다 낮으면 압축기를 기동하지 않고 기설정온도보다 높으면 압축기를 기동하는 제2단계, 냉장실의 온도를 감지하여 기설정된 냉장실의 안정온도와 비교하는 제3단계, 및 냉장실의 온도가 기설정온도보다 낮으면 냉장실팬을 기동하지 않고 기설정온도보다 높으면 냉장실팬을 기동하는 제4단계를 구비하여 이루어진 것을 특징으로 하는 냉장고의 정온냉장방법.A first step of comparing the temperature of the freezer compartment detected by the sensor of the freezer compartment with a stable temperature of the preset freezer compartment; a second step of starting the compressor if the freezer compartment temperature is lower than the preset temperature; A third step of detecting the temperature of the refrigerating compartment and comparing it with a stable temperature of the preset refrigerating compartment, and a fourth step of starting the refrigerating compartment fan if the refrigerating compartment temperature is lower than the preset temperature and starting the refrigerating compartment fan if the refrigerator is higher than the preset temperature. Constant temperature refrigeration method of the refrigerator comprising a. 제1항에 있어서, 상기 압축기를 온/오프하는 냉동실의 온도갭은 대략 4℃∼6℃ 정도이고, 상기 냉장실팬을 온/오프하는 냉장실의 온도갭은 0.35℃∼0.5℃ 정도인 것을 특징으로 하는 냉장고의 정온냉장방법.The temperature gap of the freezer compartment for turning on / off the compressor is about 4 ° C to 6 ° C, and the temperature gap of the refrigerator compartment for turning on / off the refrigerator compartment fan is about 0.35 ° C to 0.5 ° C. Constant temperature refrigeration of the refrigerator.
KR1019960073800A 1996-12-27 1996-12-27 Cooling method for fixed temperature of refrigerator KR100203988B1 (en)

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