KR20020085373A - control method for cooling system in the refrigerator - Google Patents

control method for cooling system in the refrigerator Download PDF

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Publication number
KR20020085373A
KR20020085373A KR1020010024859A KR20010024859A KR20020085373A KR 20020085373 A KR20020085373 A KR 20020085373A KR 1020010024859 A KR1020010024859 A KR 1020010024859A KR 20010024859 A KR20010024859 A KR 20010024859A KR 20020085373 A KR20020085373 A KR 20020085373A
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South Korea
Prior art keywords
refrigerator
compartment
cycle
compressor
heat exchanger
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KR1020010024859A
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Korean (ko)
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KR100370092B1 (en
Inventor
김세영
박진구
박준형
김양규
황인영
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엘지전자 주식회사
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Priority to KR10-2001-0024859A priority Critical patent/KR100370092B1/en
Publication of KR20020085373A publication Critical patent/KR20020085373A/en
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Publication of KR100370092B1 publication Critical patent/KR100370092B1/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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line 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
    • 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
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

PURPOSE: A method for controlling cooling system of refrigerator is provided to offer a refrigerator system having function of a normal refrigerator as well as a kimchi refrigerator. CONSTITUTION: A three-way valve(3) is opened for F cycle mode in which refrigerant having pass a compressor(1) and a condenser(2) passes the three-way valve and flows into a first evaporator(6a) of a freezer compartment(6) so as to prevent high-temperature refrigerant from flowing into a second evaporator(7a) and the first evaporator successively and simultaneously increasing indoor temperature of a refrigerator compartment(7) and the freezer compartment.

Description

냉장고의 냉각 시스템 제어 방법{control method for cooling system in the refrigerator}Control method for cooling system in the refrigerator}

본 발명은 음식물을 냉동 및 보관하는 일반적인 냉장고와 김치의 숙성기능을 갖는 김치독 냉장고의 기능을 겸비한 냉장고 시스템을 제공하는 데 그 목적이 있다.It is an object of the present invention to provide a refrigerator system having a function of a general refrigerator for freezing and storing food and a kimchi dog refrigerator having a ripening function of kimchi.

일반적인 냉장고는 음식물을 냉동시켜 장기간 보관하는 냉동실과 야채나 김치 등을 일정한 온도에서 얼리지 않고 보관시키는 냉장실로 이루어진다.A typical refrigerator consists of a freezer compartment for freezing food and storing it for a long time and a freezer compartment for storing vegetables or kimchi without freezing at a constant temperature.

상기 냉장고의 압축기에서 압축된 냉매는 고온고압 상태로 응축기에 보내지고, 상기 고온냉매는 응축기에서 응축되어 팽창장치에 보내지고, 상기 팽창장치에서 팽창된 냉매는 증발기에 보내진다.The refrigerant compressed in the compressor of the refrigerator is sent to the condenser in a high temperature and high pressure state, the high temperature refrigerant is condensed in the condenser and sent to the expansion device, and the refrigerant expanded in the expansion device is sent to the evaporator.

그러나, 이러한 종래 냉장고는 냉동 및 내장 기능만이 있을 뿐 김치를 숙성기능이 없으며, 김치독 냉장고는 냉동기능이 없다.However, such a conventional refrigerator has only a freezing and built-in function, there is no ripening function of kimchi, and the kimchi dock refrigerator does not have a freezing function.

한편, 최근에는 김치 냉장고 등에 대한 수요가 늘고 있는바, 소비자는 냉장고와는 별도로 김치독 냉장고를 구입해야 하므로 경제적으로 비용이 많이 들고 설치공간에 있어서도 많은 공간이 필요하다.On the other hand, in recent years, the demand for kimchi refrigerator, etc. is increasing, consumers need to purchase a kimchi dog refrigerator separately from the refrigerator, it is economically expensive and requires a lot of space in the installation space.

이에 따라, 본 발명은 음식물을 냉동 및 보관하는 일반적인 냉장고와 김치의 숙성기능을 갖는 김치독 냉장고의 기능을 겸비한 냉장고 시스템을 제공하는 데 그 목적이 있다.Accordingly, an object of the present invention is to provide a refrigerator system having a function of a general refrigerator for freezing and storing food and a kimchi dog refrigerator having a ripening function of kimchi.

도 1은 본 발명에 따른 2 개의 열교환기가 설치되는 냉장고의 개략적인 구성과 냉매의 흐름을 나타낸 개략단면도.1 is a schematic cross-sectional view showing a schematic configuration and a flow of a refrigerant of a refrigerator provided with two heat exchangers according to the present invention;

도 2는 도 1에 따른 냉장고의 F 사이클과 R/F 사이클을 간략하게 나타낸 블록 선도.Figure 2 is a block diagram briefly showing the F cycle and R / F cycle of the refrigerator according to Figure 1;

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

1 : 압축기 2 : 응축기1: compressor 2: condenser

3 : 삼방밸브 4 : 제 1 팽창장치3: three-way valve 4: first expansion device

5 : 제 2 팽창장치 6 : 냉동실5: second expansion device 6: freezer

6a : 제 1 증발기 6b : 제 1 온도센서6a: first evaporator 6b: first temperature sensor

7 : 냉장실 7a : 제 2 증발기7: refrigerating chamber 7a: second evaporator

7b : 제 2 온도센서 7c : 제 1 댐퍼7b: second temperature sensor 7c: first damper

8 : 저장실 8a : 제 3 온도센서8: storage compartment 8a: third temperature sensor

8b : 제 2 댐퍼8b: second damper

이를 위해, 본 발명은 압축기와 응축기를 통과한 냉매가 삼방밸브를 통과하여 냉동실의 제 1 열교환기로 유입되는 F 사이클과, 압축기와 응축기를 통과한 냉매가 삼방밸브를 통과하여 냉장실의 제 2 열교환기를 거쳐 냉동실의 제 1 열교환기에 유입되는 R/F 사이클로 운전되는 냉장고 시스템 운전 방법에 있어서, 상기 압축기의 운전을 정지시킬 때에 삼방밸브를 F 사이클 모드로 개방시킴으로써, 고온 냉매가 제 2 열교환기와 제 1 열교환기에 순차적으로 유입되어 냉장실과 냉동실의 실내 온도를 동시에 상승시키는 것을 방지하는 것을 특징으로 하는 냉장고의 시스템 제어 방법을 제공한다.To this end, in the present invention, the refrigerant passing through the compressor and the condenser passes through the three-way valve and flows into the first heat exchanger of the freezer compartment, and the refrigerant passing through the compressor and the condenser passes through the three-way valve to provide the second heat exchanger of the refrigerating compartment. In the refrigerator system operation method which is operated by the R / F cycle flowing into the first heat exchanger of the freezer compartment, the high-temperature refrigerant is the first heat exchanger and the first heat exchanger by opening the three-way valve in F cycle mode when the operation of the compressor is stopped The present invention provides a system control method for a refrigerator, which is sequentially introduced to the refrigerator, thereby preventing the room temperature of the refrigerator compartment and the freezer compartment from being increased at the same time.

본 발명에 따른 냉장고에 대해 종래의 냉장고와 동일한 부분에 대해서는 동일한 도번을 부여하고 동일한 구조에 있어서는 그 설명을 생략하기로 한다.For the refrigerator according to the present invention, the same parts as those of the conventional refrigerator are given the same reference number, and the description thereof will be omitted in the same structure.

이하, 본 발명에 따른 냉장고에 관해 도 1 및 도 2를 참조하여 설명하면 다음과 같다.Hereinafter, a refrigerator according to the present invention will be described with reference to FIGS. 1 and 2.

도 1은 본 발명에 따른 두 개의 열교환기가 설치되는 냉장고의 개략적인 구성과 냉매의 흐름을 나타낸 개략단면도이다.1 is a schematic cross-sectional view showing a schematic configuration and a flow of a refrigerant of a refrigerator provided with two heat exchangers according to the present invention.

도 1을 참조하면, 상기 냉장고는 냉장실(7), 냉동실(6) 및 저장실(8)로 이루어지는데, 상기 냉동실(6)에는 제 1 열교환기(6a) 및 제 1 온도센서(6b)가 설치되고, 냉장실(7)에는 제 2 열교환기(7a) 및 제 2 온도센서(7b)가 설치되며, 상기 저장실(8)에는 제 3 온도센서(8a)와 히터(미도시)가 설치된다.Referring to FIG. 1, the refrigerator includes a refrigerator compartment 7, a freezer compartment 6, and a storage compartment 8, in which the first heat exchanger 6a and the first temperature sensor 6b are installed. In the refrigerating chamber 7, a second heat exchanger 7a and a second temperature sensor 7b are installed, and the storage chamber 8 is provided with a third temperature sensor 8a and a heater (not shown).

또한, 상기 냉장실(7) 및 냉동실(6)의 외부에는 압축기(1), 응축기(2), 제 1 팽창장치(4), 제 2 팽창장치(5) 및 마이컴(미도시)이 설치된다.In addition, the compressor (1), the condenser (2), the first expansion device (4), the second expansion device (5) and the microcomputer (not shown) are provided outside the refrigerator compartment (7) and the freezing compartment (6).

상기 냉장실 및 저장실(8)의 일측면에는 개폐가능하도록 각각 제 1 댐퍼(7c)와 제 2 댐퍼(8b)가 설치되며, 상기 각 댐퍼(7c,8b)를 개방시킴에 의해 제 2 열교환기(7a)가 설치된 공간에 냉기를 공급한다.The first damper 7c and the second damper 8b are respectively installed on one side of the refrigerating compartment and the storage compartment 8 so as to be openable and open, and the second heat exchanger 7 is opened by opening the respective dampers 7c and 8b. Cool air is supplied to the space where 7a) is installed.

또한, 상기 저장실(8)은 히터에 의해 김치를 숙성시킬 수도 있으며, 숙성된 김치를 일정한 온도에서 보관할 수도 있다.In addition, the storage chamber 8 may be aged kimchi by a heater, it may be stored at a constant temperature of the kimchi.

상기 각 온도센서(6b,7b,8a)는 냉동실(6), 냉장실(7) 및 저장실(8)의 내부온도를 감지하여 감지된 신호를 마이컴(미도시)에 보낸다.Each of the temperature sensors 6b, 7b, and 8a detects internal temperatures of the freezing chamber 6, the refrigerating chamber 7, and the storage chamber 8, and transmits the detected signal to the microcomputer (not shown).

상기 냉장실(7)과 냉동실(6) 및 저장실(8)을 각각 일정한 온도 범위에서만 운전되도록 하기 위해 상기 마이컴에는 냉장실(7)와 냉동실(6) 및 저장실(8)에 대한 상한치 온도와 하한치 온도가 각각 설정되어 있다.In order to operate the refrigerating compartment 7, the freezing compartment 6, and the storage compartment 8 only within a constant temperature range, the microcomputer has upper and lower limit temperatures for the refrigerating compartment 7, the freezing compartment 6, and the storage compartment 8. Each is set.

예를 들면, 상기 마이컴에 냉장실(7)의 상한치 온도를 3℃로 설정하고 하한치 온도를 -1℃로 설정하면, 상기 상한치 온도와 하한치 온도는 3℃와 -1℃가 된다.For example, when the upper limit temperature of the refrigerating chamber 7 is set to 3 ° C and the lower limit temperature is set to -1 ° C, the upper limit temperature and the lower limit temperature are 3 ° C and -1 ° C.

한편, 상기 상한치 온도와 하한치 온도 사이의 범위를 이하에서는 설정온도 범위라고 하기로 한다.In addition, the range between the upper limit temperature and the lower limit temperature will be referred to as a set temperature range below.

이어, 상기 마이컴은 상기 온도센서(6b,7b,8a)에 의해 감지된 신호가 마이컴에 전달됨에 따라 상기 마이컴은 그 신호를 판단하여 냉장실(7)과 냉동실(6)의 각 열교환기(6a,7a)에 냉매를 공급하거나 차단하도록 제어한다.Subsequently, as the micom receives a signal sensed by the temperature sensors 6b, 7b, and 8a to the microcomputer, the microcomputer determines the signal and determines each of the heat exchangers 6a and 6b of the refrigerating chamber 7 and the freezing chamber 6. Control to supply or shut off the refrigerant to 7a).

한편, 상기 마이컴에는 김치를 숙성할 때와 보관할 때의 저장실 온도가 각각 설정되어 있다.On the other hand, in the microcomputer, the storage temperature at the time of ripening and storage of kimchi is set, respectively.

이러한 저장실(8)에 김치를 넣어 숙성시키는 경우, 김치의 종류나 숙성시간이 미리 정해져 있는 컨트롤 패널(미도시)의 버튼을 누르면, 상기 저장실에 설치된 히터가 작동하여 저장실(8)의 온도가 약 20℃로 일정시간 동안 유지되면서 김치를 숙성시킨다.When the kimchi is put into the storage compartment 8 to be matured, when a button of a control panel (not shown) in which the type and the ripening time of the kimchi is set is pressed, a heater installed in the storage compartment is operated so that the temperature of the storage compartment 8 is weak. The kimchi is aged while being kept at 20 ° C. for a certain time.

이어, 상기 김치의 숙성이 완료되면 상기 저장실에 냉기를 공급하여 저장실의 내부온도를 설정온도 범위로 낮추어 보관한다.Subsequently, when the aging of the kimchi is completed, cold air is supplied to the storage compartment to lower the internal temperature of the storage compartment to a set temperature range.

이와 같이 구성된 냉장고의 냉매 사이클 및 그 작용에 대해 참조도면 도 2를 참조하여 설명하면 다음과 같다.The refrigerant cycle of the refrigerator configured as described above and its operation will be described with reference to FIG. 2 as follows.

도 2는 도 1에 따른 냉장고의 F 사이클과 R/F 사이클을 간략하게 나타낸 블록 선도이다.FIG. 2 is a block diagram schematically illustrating an F cycle and an R / F cycle of the refrigerator according to FIG. 1.

이를 참조하면, 상기 압축기(1)는 냉매를 압축하여 고온고압의 기체냉매를 응축기(2)에 압송하고, 상기 응축기(2)는 냉매를 응축하여 삼방밸브(3)로 보낸다.Referring to this, the compressor (1) compresses the refrigerant and pressurizes the gas refrigerant of high temperature and high pressure to the condenser (2), and the condenser (2) condenses the refrigerant and sends it to the three-way valve (3).

이때, 상기 냉장실(7) 및 저장실(8)의 내부온도가 설정온도 범위임과 동시에 상기 냉동실(6)의 내부온도가 상한치 온도 이상이면, 상기 마이컴의 제어에 의해 삼방밸브(3)는 F 사이클 모드로 개방된다.At this time, when the internal temperature of the refrigerating chamber 7 and the storage chamber 8 is within the set temperature range and the internal temperature of the freezing chamber 6 is equal to or higher than the upper limit temperature, the three-way valve 3 performs an F cycle under the control of the microcomputer. Open in mode.

이에 따라, 상기 삼방밸브(3)를 통과한 냉매는 제 1 팽창장치(4)와 제 1 열교환기(6a)를 따라 순환되는 F 사이클을 수행한다.Accordingly, the refrigerant passing through the three-way valve 3 performs an F cycle circulated along the first expansion device 4 and the first heat exchanger 6a.

다음으로, 상기 냉장실(7) 및 저장실(8)의 내부온도가 상한치 온도 이상이 되면, 상기 마이컴의 제어에 의해 삼방밸브(3)는 R/F 사이클 모드로 개방된다.Next, when the internal temperatures of the refrigerating chamber 7 and the storage chamber 8 are equal to or higher than the upper limit temperature, the three-way valve 3 is opened in the R / F cycle mode by the control of the microcomputer.

이때, 상기 삼방밸브(3)를 통과한 냉매는 제 2 팽창장치(5), 제 2 열교환기(7a) 및 제 1 열교환기(6a)를 순차적으로 유동하는 R/F 사이클을 수행한다.At this time, the refrigerant passing through the three-way valve (3) performs an R / F cycle to sequentially flow the second expansion device (5), the second heat exchanger (7a) and the first heat exchanger (6a).

이상에서와 같이, 상기 냉장고를 F 사이클로 운전시킬 때는 냉동실(6)의 실내 온도만을 낮추면 되는 반면에, 상기 냉장고를 R/F 사이클로 운전시킬 때에는 냉동실(6)과 냉장실(7) 및 저장실(8)의 실내온도를 모두 설정온도 범위로 낮추어야 한다.As described above, when operating the refrigerator in an F cycle, only the indoor temperature of the freezer compartment 6 needs to be lowered, whereas when the refrigerator is operated in an R / F cycle, the freezer compartment 6, the refrigerating compartment 7, and the storage compartment 8 are operated. The room temperature must be lowered to the set temperature range.

이에 따라, 상기 냉장고를 R/F 사이클로 운전시킬 때 보다 F 사이클로 운전시킬 때가 소비전력이 적게 소모되므로, 본 발명은 R/F 사이클로만 운전되는 종래의 냉장고에 비해 소비전력을 보다 적게 소모되게 할 수 있다.Accordingly, since the refrigerator consumes less power when operating in an F cycle than when operating the refrigerator in an R / F cycle, the present invention can consume less power than a conventional refrigerator operating only in an R / F cycle. have.

이상에서와 같은 냉매 사이클로 운전됨에 따라 상기 냉장실(7)과 냉동실(6)이 각각 설정온도 범위를 만족하면 되면, 상기 마이컴은 냉동실(6)과 냉장실(7) 및 저장실(8)의 실내온도를 더 이상 낮출 필요가 없음을 판단하여 압축기(1)의 운전을 정지시키는데, 이에 대해 설명하면 다음과 같다.When the refrigerating compartment 7 and the freezing compartment 6 satisfy the set temperature ranges according to the operation of the refrigerant cycle as described above, the microcomputer sets the room temperature of the freezing compartment 6, the refrigerating compartment 7, and the storage compartment 8. It is determined that there is no need to lower any more, the operation of the compressor 1 is stopped, which will be described below.

먼저, 상기 냉장고가 F 사이클로 운전되고 있는 상태에서 상기 냉동실(6)과 냉장실(7) 및 저장실(8)의 실내온도가 설정온도 범위를 만족하면, 상기 압축기(1)는 마이컴의 제어에 의해 그 운전이 정지된다.First, when the indoor temperature of the freezer compartment 6, the refrigerating compartment 7 and the storage compartment 8 satisfies the set temperature range while the refrigerator is operating in an F cycle, the compressor 1 is controlled by the microcomputer. Operation stops.

이때, 상기 삼방밸브(3)는 F 사이클 모드로 개방된 상태이므로 상기 냉장실(7)의 제 2 열교환기(7a)에는 고온 냉매가 유입되지 않는다.At this time, since the three-way valve 3 is open in the F cycle mode, the high temperature refrigerant does not flow into the second heat exchanger 7a of the refrigerating chamber 7.

다음으로, 상기 냉장고가 R/F 사이클로 운전되는 상태에서 압축기(1)의 운전이 정지되면, 상기 압축기(1)는 마이컴의 제어에 의해 그 운전이 정지된다.Next, when the operation of the compressor 1 is stopped while the refrigerator is operated in an R / F cycle, the compressor 1 is stopped by the control of the microcomputer.

이때, 상기 삼방밸브는 R/F 사이클로 운전 모드로 개방된 상태이므로 상기냉장실(7)의 제 2 열교환기(7a)에 고온 냉매가 직접 유입되어 냉장실과 저장실(8)의 실내온도를 상승시킬 수 있다.At this time, since the three-way valve is opened in the operation mode in the R / F cycle, a high temperature refrigerant flows directly into the second heat exchanger 7a of the refrigerating compartment 7 to increase the room temperature of the refrigerating compartment and the storage compartment 8. have.

그러나, 상기 제 2 열교환기에 고온 냉매가 직접 유입되는 것을 방지하기 위해, 본 발명은 삼방밸브(3)를 F 사이클 모드로 개방시킨 상태에서 압축기(1)의 운전을 정지시킨다.However, in order to prevent the high temperature refrigerant from flowing directly into the second heat exchanger, the present invention stops the operation of the compressor 1 in a state in which the three-way valve 3 is opened in the F cycle mode.

즉, 상기 냉장고가 R/F 사이클로 운전되는 중에 냉동실(6)과 냉장실(7) 및 과 저장실(8)의 실내온도가 설정온도 범위를 만족하여 압축기의 운전이 정지되는 경우, 상기 삼방밸브(3)를 F 사이클 모드로 개방시킨 후에 압축기(1)의 운전을 정지시키는 것이다.That is, the three-way valve (3) when the operation of the compressor is stopped when the room temperature of the freezer compartment 6, the refrigerating compartment 7 and the storage compartment 8 satisfies a set temperature range while the refrigerator is operating in an R / F cycle. ) Is stopped in the F cycle mode and the compressor 1 is stopped.

또한, 도 1 과 같이 냉동실(6)이 냉장실(7)의 상부에 배치되는 구조를 갖는 냉장고의 경우, 상기 삼방밸브(3)를 R/F 사이클 모드로 개방시키고 압축기(1)의 운전을 정지시키면, 상기 제 2 열교환기(7a)와 제 1 열교환기(6a) 사이에 위치하는 고온 냉매는 증발되면서 제 1 열교환기(6a)에 유입되는데, 이와 같은 현상을 써모 사이펀(thermosiphon) 현상이라고 한다.In addition, in the case of a refrigerator having a structure in which the freezing chamber 6 is disposed above the refrigerating chamber 7, as shown in FIG. 1, the three-way valve 3 is opened in the R / F cycle mode and the operation of the compressor 1 is stopped. In this case, the high temperature refrigerant located between the second heat exchanger 7a and the first heat exchanger 6a flows into the first heat exchanger 6a while being evaporated. Such a phenomenon is referred to as a thermosiphon phenomenon. .

이러한 구조의 냉장고에서 상기 삼방밸브를 F 사이클 모드로 개방시킨 후에 압축기의 운전을 정지시키면, 상기 고온 냉매가 제 2 열교환기에 유입되는 것을 원천적으로 방지할 수 있게 된다.By stopping the operation of the compressor after opening the three-way valve in the F cycle mode in the refrigerator having such a structure, it is possible to prevent the high temperature refrigerant from flowing into the second heat exchanger.

이에 따라, 상기 압축기(1)가 정지될 때에 삼방밸브(3)를 통과한 고온 냉매로 인하여 냉동실(6) 및 냉장실(7)의 온도가 동시에 상승되는 것을 방지할 수 있다.Accordingly, the temperature of the freezing chamber 6 and the refrigerating chamber 7 can be prevented from rising at the same time due to the high temperature refrigerant passing through the three-way valve 3 when the compressor 1 is stopped.

이렇게 하여 상기 압축기의 운전이 정지되는 시간을 연장시킬 수 있으므로 냉장고의 소비전력을 감소시킬 수 있다.In this way, the time for stopping the operation of the compressor can be extended, thereby reducing the power consumption of the refrigerator.

또한, 압축기 재가동시 상기 냉장고를 F 사이클로 운전시킬 수 있어 냉장고의 효율을 향상시킬 수 있다.In addition, when the compressor is restarted, the refrigerator may be operated in an F cycle, thereby improving the efficiency of the refrigerator.

이상에서와 같이, 본 발명은 2개의 냉매 사이클로 냉장고가 운전되도록 하여 냉장고의 소비전력을 저감할 수 있다.As described above, the present invention allows the refrigerator to be operated in two refrigerant cycles, thereby reducing power consumption of the refrigerator.

또한, 압축기의 운전을 정지시키는 때에 상기 냉장실 및 저장실이 고온 냉매에 의해 가열되는 것을 방지하여 상기 냉장고의 소비전력을 보다 감소시킬 수 있다.In addition, when the operation of the compressor is stopped, the refrigerating compartment and the storage compartment may be prevented from being heated by the high temperature refrigerant, thereby further reducing power consumption of the refrigerator.

이렇게 하여 냉장고 전체적인 효율을 향상시키도록 하였다.In this way, to improve the overall efficiency of the refrigerator.

Claims (2)

압축기와 응축기를 통과한 냉매가 삼방밸브를 통과하여 냉동실의 제 1 열교환기로 유입되는 F 사이클과, 압축기와 응축기를 통과한 냉매가 삼방밸브를 통과하여 냉장실의 제 2 열교환기를 거쳐 냉동실의 제 1 열교환기에 유입되는 R/F 사이클로 운전되는 냉장고 시스템 운전 방법에 있어서,The F cycle through which the refrigerant passing through the compressor and the condenser passes through the three-way valve to the first heat exchanger of the freezer compartment, and the refrigerant passing through the compressor and the condenser passes through the three-way valve to pass through the second heat exchanger of the refrigerating chamber through the first heat exchanger of the freezer compartment. In the method of operating a refrigerator system driven by the R / F cycle flowing into the 상기 압축기의 운전을 정지시킬 때에 삼방밸브를 F 사이클 모드로 개방시킴으로써, 고온 냉매가 제 2 열교환기와 제 1 열교환기에 순차적으로 유입되어 냉장실과 냉동실의 실내 온도를 동시에 상승시키는 것을 방지하는 것을 특징으로 하는 냉장고의 냉각 시스템 제어 방법.By opening the three-way valve in the F cycle mode when the operation of the compressor is stopped, it is possible to prevent the high temperature refrigerant from flowing into the second heat exchanger and the first heat exchanger sequentially to raise the room temperature of the refrigerating compartment and the freezing compartment at the same time. How to control the cooling system of the refrigerator. 제 1 항에 있어서,The method of claim 1, 상기 냉장고가 R/F 사이클로 운전되는 중에 냉장실과 냉동실 및 저장실의 실내온도가 설정온도 범위를 만족할 때에 상기 삼방밸브를 F 사이클 모드로 개방시킨 후에 압축기의 운전을 정지시키는 냉장고의 냉각 시스템 제어 방법.And controlling the operation of the compressor after opening the three-way valve in the F cycle mode when the indoor temperatures of the refrigerating compartment, the freezing compartment, and the storage compartment satisfy the set temperature range while the refrigerator operates in the R / F cycle.
KR10-2001-0024859A 2001-05-08 2001-05-08 control method for cooling system in the refrigerator KR100370092B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100808180B1 (en) * 2006-11-09 2008-02-29 엘지전자 주식회사 Apparatus for refrigeration cycle and refrigerator
US8447432B2 (en) 2006-12-26 2013-05-21 Lg Electronics Inc. Refrigerator and control method for the same
KR20170083714A (en) * 2016-01-08 2017-07-19 주식회사 대유위니아 Apparatus for controlling kimchi refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100808180B1 (en) * 2006-11-09 2008-02-29 엘지전자 주식회사 Apparatus for refrigeration cycle and refrigerator
US8769975B2 (en) 2006-11-09 2014-07-08 Lg Electronics Inc. Apparatus for refrigeration cycle and refrigerator
US8447432B2 (en) 2006-12-26 2013-05-21 Lg Electronics Inc. Refrigerator and control method for the same
KR20170083714A (en) * 2016-01-08 2017-07-19 주식회사 대유위니아 Apparatus for controlling kimchi refrigerator

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