KR20030033358A - Freezing cycle for refrigerator using variable cooling compressor - Google Patents

Freezing cycle for refrigerator using variable cooling compressor Download PDF

Info

Publication number
KR20030033358A
KR20030033358A KR1020010065099A KR20010065099A KR20030033358A KR 20030033358 A KR20030033358 A KR 20030033358A KR 1020010065099 A KR1020010065099 A KR 1020010065099A KR 20010065099 A KR20010065099 A KR 20010065099A KR 20030033358 A KR20030033358 A KR 20030033358A
Authority
KR
South Korea
Prior art keywords
low
temperature
capillary tube
pressure
operation mode
Prior art date
Application number
KR1020010065099A
Other languages
Korean (ko)
Inventor
정의엽
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020010065099A priority Critical patent/KR20030033358A/en
Publication of KR20030033358A publication Critical patent/KR20030033358A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves
    • F25B2600/2519On-off valves

Abstract

PURPOSE: A freezing cycle for a refrigerator using a variable cooling compressor is provided to optimize the freezing cycle. CONSTITUTION: A freezing cycle includes a compressor(1), a condenser(2), an expansion unit(10) having capillaries(11,12) with different optimum lengths for different operating mode of a refrigerator to expand refrigerant discharged from the condenser; a first evaporator(F-EVA) introducing low temperature and low pressure refrigerant through the expansion unit to evaporate and discharging chilled air into a freezer compartment on high cooling performance operation mode; and a second evaporator(R-EVA) sucking low temperature and low pressure refrigerant through the expansion unit to evaporate and discharging chilled air into a refrigerator compartment on low cooling performance operation mode.

Description

가변 냉력 압축기를 이용한 냉장고의 냉동 싸이클{ FREEZING CYCLE FOR REFRIGERATOR USING VARIABLE COOLING COMPRESSOR}FREEZING CYCLE FOR REFRIGERATOR USING VARIABLE COOLING COMPRESSOR}

본 발명은 가변 냉력 압축기를 이용한 냉장고의 냉동 싸이클에 관한 것으로,특히, 냉각능력의 차이에 따라 모세관의 길이를 달리 하여 최적의 싸이클을 구현하도록 한 가변냉력 압축기를 이용한 냉장고의 냉동싸이클에 관한 것이다.The present invention relates to a refrigeration cycle of a refrigerator using a variable cold power compressor, and more particularly, to a refrigeration cycle of a refrigerator using a variable cold compressor to realize an optimal cycle by varying the capillary length according to a difference in cooling capacity.

일반적으로, 냉장고에 적용되는 냉동 싸이클의 경우, 냉동실의 냉기 공급을 위한 고냉력 싸이클과 냉장실의 냉기 공급을 위한 저냉력 싸이클로 구분된다.In general, in the case of a refrigeration cycle applied to the refrigerator, it is divided into a high cold cycle for supplying cold air in the freezer compartment and a low cold cycle for supplying cold air in the refrigerating compartment.

이때, 상기 고냉력 냉동 싸이클이나 저냉력 냉동싸이클은, 팽창수단의 길이가 동일하여 운전모드에 따른 최적의 냉동싸이크을 구현하지 못하는데, 이와같은 종래 기술을 첨부한 도면을 참조하여 설명한다.In this case, the high-cooling refrigeration cycle or low-cold-freezing cycle, the length of the expansion means is not the same to implement the optimal refrigeration cycle according to the operation mode, this will be described with reference to the accompanying drawings.

도1은 일반적인 냉장고의 냉동싸이클을 보인 보인 개략도로서, 이에 도시된 바와같이 증발기에서 토출되는 저온, 저압의 냉매증기를 흡입하여 이를 압축함으로써 고온, 고압의 증기로 만드는 압축기(1)와; 상기 압축기(1)에서 토출된 고온, 고압의 냉매증기의 열을 물 또는 공기 중에 방출시키고, 고압의 포화액으로 변화시키는 응축기(2)와; 상기 응축기(2)에서 토출된 고압의 포화액을, 모세관(3)을 통해 통해 저온, 저압의 냉매로 흡입하여 이를 증발시켜, 냉동실로 열교환하여 차가워진 공기를 배출하는 제1 증발기(F-EVA)와; 상기 응축기(2)에서 토출된 고압의 포화액을, 모세관(3)을 통해 저온,저압의 냉매로 흡입하여 이를 증발시켜, 냉장실로 열교환하여 차가워진 공기를 배출하는 제2 증발기(R-EVA)를 구비하며, 이와같은 냉동싸이클을 설명한다.1 is a schematic view showing a refrigerating cycle of a typical refrigerator, as shown in FIG. 1, a compressor (1) which makes high-temperature, high-pressure steam by sucking and compressing a low-temperature, low-pressure refrigerant vapor discharged from an evaporator; A condenser (2) for dissipating the heat of the high-temperature, high-pressure refrigerant vapor discharged from the compressor (1) into water or air, and converting it into a high-pressure saturated liquid; The first evaporator (F-EVA) which sucks the high pressure saturated liquid discharged from the condenser 2 into the refrigerant of low temperature and low pressure through the capillary tube 3, evaporates it, and heats it into a freezing chamber to discharge cold air. )Wow; A second evaporator (R-EVA) which sucks the high pressure saturated liquid discharged from the condenser 2 into the refrigerant having low temperature and low pressure through the capillary tube 3 and evaporates it, and heats it into a refrigerating chamber to discharge cold air. It will be described, such a freezing cycle will be described.

먼저, 냉동 운전시(고냉력 운전시), 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 모세관(3)을 지나면서 저온저압의 냉매로 된다.First, in the freezing operation (high cooling operation), the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2, condenses, and passes through the capillary tube 3 to become a low temperature low pressure refrigerant.

이후, 제1 증발기(F-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉동실로 액분이 없는 포화증기를 배출한다.Thereafter, the first evaporator (F-EVA) sucks the low-temperature low-pressure refrigerant and evaporates it, and discharges saturated steam without liquid to the freezer compartment.

냉장 운전시(저냉력 운전시), 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 모세관(3)을 지나면서 저온저압의 냉매로 된다.In the cold storage operation (low cooling power operation), the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2, condenses, and passes through the capillary tube 3 to become a low temperature low pressure refrigerant.

이후, 제2 증발기(R-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉동실로 열교환하여 차가워진 공기를 배출한다.Thereafter, the second evaporator (R-EVA) inhales and evaporates the low temperature and low pressure refrigerant, and heats it into a freezer compartment to discharge cold air.

이때, 상기 모세관(3)의 최적 길이는, 도2와 같이, 저냉력 싸이클과 고냉력 싸이클에서 각기 다르게 되는데, 도1에서 보는 바와같이, 모세관(3)의 길이가 동일하게 이루어져 최적 싸이클을 구현하지 못하는 문제점이 있다.At this time, the optimum length of the capillary tube 3, as shown in Figure 2, is different in the low cooling cycle and high cooling cycle, respectively, as shown in Figure 1, the length of the capillary tube 3 is the same to implement the optimal cycle There is a problem that can not be.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 냉각능력의 차이에 따라 모세관의 길이를 달리 하여 최적의 싸이클을 구현하도록 한 가변냉력 압축기를 이용한 냉장고의 냉동싸이클을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, the object of the present invention is to provide a refrigeration cycle of the refrigerator using a variable cold compressor to achieve the optimum cycle by varying the length of the capillary tube according to the difference in the cooling capacity. .

도1은 일반적인 냉장고의 냉동싸이클을 보인 보인 개략도.1 is a schematic view showing a refrigeration cycle of a typical refrigerator.

도2는 도1에 있어서, 냉동싸이클의 운전모드를 보인도.2 is a view showing the operation mode of the refrigeration cycle in FIG.

도3은 본 발명 가변 냉력 압축기를 이용한 냉장고의 냉동싸이클을 보인 개략도.Figure 3 is a schematic view showing a refrigeration cycle of the refrigerator using the present invention variable cold power compressor.

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

1:압축기2:응축기1: Compressor 2: Condenser

F-EVA,R-EVA:증발기10:팽창수단F-EVA, R-EVA: Evaporator 10: Expansion means

11,12:모세관13:온/오프밸브11, 12: capillary tube 13: on / off valve

상기와 같은 목적을 달성하기 위한 본 발명은, 저온, 저압의 냉매증기를 흡입하여 이를 압축함으로써 고온, 고압의 증기로 만드는 압축기와; 상기 압축기에서토출된 고온, 고압의 냉매증기의 열을 물 또는 공기 중에 방출시키고, 고압의 포화액으로 변화시키는 응축기와; 냉장고의 운전모드에 따라, 모세관의 최적 길이를 달리하여, 상기 응축기에서 토출된 고압의 포화액을 저온, 저압의 냉매로 팽창하는 팽창수단과; 고냉력 운전모드시, 상기 팽창수단을 통해 저온,저압의 냉매를 흡입하여 이를 증발시켜,냉동실로 열교환하여 차가워진 공기를 배출하는 제1 증발기와; 저냉력 운전모드시, 상기 팽창수단을 통해, 저온,저압의 냉매를 흡입하여 이를 증발시켜, 냉장실로 열교환하여 차가워진 공기를 배출하는 제2 증발기를 포함하는 것을 특징으로 한다.The present invention for achieving the above object is a compressor for making high-temperature, high-pressure steam by inhaling and compressing the refrigerant vapor of low temperature, low pressure; A condenser for dissipating heat of the high-temperature, high-pressure refrigerant vapor discharged from the compressor into water or air, and converting it into a high-pressure saturated liquid; Expansion means for expanding a high pressure saturated liquid discharged from the condenser into a low temperature and low pressure refrigerant by varying an optimum length of the capillary tube according to an operation mode of the refrigerator; A first evaporator that sucks and cools low-temperature and low-pressure refrigerant through the expansion means and heats it to a freezing chamber to discharge cold air in the high-cooling operation mode; In the low-cooling power mode, the expansion means, by taking a low-temperature, low-pressure refrigerant to evaporate it, heat exchanged to the refrigerating chamber characterized in that it comprises a second evaporator to discharge the cold air.

이하, 본 발명에 의한 가변냉력 압축기를 이용한 냉장고의 냉동싸이클에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the operation and effects on the refrigeration cycle of the refrigerator using a variable refrigeration compressor according to the present invention will be described in detail.

도3은 본 발명 가변냉력 압축기를 이용한 냉장고의 냉동싸이클에 대한 개략도로서, 이에 도시한 바와같이 저온, 저압의 냉매증기를 흡입하여 이를 압축함으로써 고온, 고압의 증기로 만드는 압축기(1)와; 상기 압축기(1)에서 토출된 고온, 고압의 냉매의 열을 물 또는 공기 중에 방출시키고, 고압의 포화액으로 변화시키는 응축기(2)와; 냉장고의 운전모드에 따라, 모세관(11,12)의 최적 길이를 달리하여, 상기 응축기(2)에서 토출된 고압의 포화액을 저온, 저압의 냉매로 팽창하는 팽창수단(10)과; 고냉력 운전모드시, 상기 팽창수단(10)을 통해 저온,저압의 냉매를 흡입하여 이를 증발시켜,냉동실로 열교환하여 차가워진 공기를 배출하는 제1 증발기(F-EVA)와; 저냉력 운전모드시, 상기 팽창수단을 통해, 저온,저압의 냉매를 흡입하여 이를 증발시켜, 냉장실로 열교환하여 차가워진 공기를 배출하는 제2 증발기(R-EVA)로 이루어진다.3 is a schematic view of a refrigeration cycle of a refrigerator using a variable-cooling compressor of the present invention, and a compressor (1) for making high-temperature and high-pressure steam by sucking and compressing a low-temperature, low-pressure refrigerant vapor as shown therein; A condenser (2) for dissipating heat of a high-temperature, high-pressure refrigerant discharged from the compressor (1) into water or air and changing it into a high-pressure saturated liquid; Expansion means (10) for expanding the high-pressure saturated liquid discharged from the condenser (2) to a low-temperature, low-pressure refrigerant by varying the optimum lengths of the capillaries (11, 12) according to the operation mode of the refrigerator; A first evaporator (F-EVA) for sucking and evaporating a refrigerant having a low temperature and a low pressure through the expansion means (10) in a high cooling power operation mode, thereby discharging the cooled air by heat exchange with a freezing chamber; In the low cooling power operation mode, the second evaporator (R-EVA) discharges cool air by inhaling and evaporating a refrigerant having a low temperature and low pressure through the expansion means.

상기 팽창수단(10)은, 고냉력 운전모드시, 고온고압의 포화액을 저온,저압의 냉매로 팽창하는 제1 모세관(11)과; 상기 제1 모세관(11)에 병렬로 연결되어, 저냉력 운전모드시, 고온고압의 포화액을 저온,저압의 냉매로 팽창하는 제2 모세관(12)과; 상기 제1 모세관(11)과 제2 모세관(12) 사이에 위치하여, 고냉력 운전모드시, 제2 모세관(12)으로 토출되는 고온고압의 포화액을 차단하도록 클로우즈되고, 저냉력 운전모드시, 제2 모세관(12)으로 고온고압의 포화액이 토출되도록 오프되는 온/오프 밸브(13)로 구성하며, 이와같이 구성한 본 발명의 동작을 설명한다.The expansion means (10) includes a first capillary tube (11) for expanding a saturated liquid of high temperature and high pressure into a refrigerant having a low temperature and a low pressure in a high cold power operation mode; A second capillary tube 12 connected in parallel to the first capillary tube 11 to expand a saturated liquid at high temperature and high pressure into a refrigerant having a low temperature and a low pressure in a low-cooling operation mode; Located between the first capillary tube 11 and the second capillary tube 12, in the high cold power operation mode, closed to block the high temperature and high pressure saturated liquid discharged to the second capillary tube 12, in the low cold power operation mode And an on / off valve 13 which is turned off so that the saturated liquid of high temperature and high pressure is discharged to the second capillary tube 12, and the operation of the present invention configured as described above will be described.

먼저, 냉동 운전시(고냉력 운전시), 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 팽창수단(10)을 지나면서 저온저압의 냉매로 된다.First, in the freezing operation (high cooling operation), the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2, condenses, and passes through the expansion means 10 to become a low temperature low pressure refrigerant. .

이때, 상기 팽창수단(10)의 온/오프밸브(13)는 클로우즈되어, 상기 응축기 (2)에서 응축된 고온고압의 냉매는, 제1 모세관(11)을 통해 저온저압의 냉매로 팽창되는데, 즉 모세관의 최적길이를 길게하여 압력차를 크게 함으로써 냉력을 증대시킨다.At this time, the on / off valve 13 of the expansion means 10 is closed, and the high temperature and high pressure refrigerant condensed in the condenser 2 is expanded to the low temperature and low pressure refrigerant through the first capillary tube 11, That is, the cooling force is increased by increasing the pressure difference by increasing the optimum length of the capillary tube.

이후, 이후, 제1 증발기(F-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉동실로 열교환하여 차가워진 공기를 배출한다.Thereafter, the first evaporator (F-EVA) sucks the low-temperature low-pressure refrigerant and evaporates it, and heats it into a freezer compartment to discharge cold air.

한편,냉장 운전시(저냉력 운전시), 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 팽창수단(10)을 지나면서 저온저압의 냉매로 된다.On the other hand, during the refrigeration operation (low cooling power operation), the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2, condenses, and passes through the expansion means 10 to become a low temperature low pressure refrigerant. .

이때, 상기 팽창수단(10)의 온/오프밸브(13)는 오픈되어, 상기 응축기(2)에서 응축된 고온고압의 냉매는, 제1 모세관(11) 및 제2 모세관(12)을 통해 저온저압의 냉매로 팽창되는데, 즉 모세관의 유로저항을 작게함으로써 냉력을 감소시킨다.At this time, the on / off valve 13 of the expansion means 10 is open, the high temperature and high pressure refrigerant condensed in the condenser 2, the low temperature through the first capillary tube 11 and the second capillary tube 12 It expands into a low pressure refrigerant, ie, reduces the cooling power by making the flow resistance of the capillary tube small.

이후, 제2 증발기(R-EVA)는 상기 제1 모세관(11) 및 제2 모세관(12)을 통해 저온저압 냉매를 흡입하여 이를 증발시켜, 냉동실로 열교환하여 차가워진 공기를 배출를 배출한다.Thereafter, the second evaporator R-EVA sucks the low-temperature low-pressure refrigerant through the first capillary tube 11 and the second capillary tube 12 and evaporates it, thereby exchanging heat to the freezing chamber to discharge the cool air.

다시 말해서, 본 발명은, 고냉력 운전모드일 경우에는, 병렬로 연결된 제1,제2 모세관 사이의 온/오프 밸브를 클로우즈시켜, 유동저항을 크게 하여 압력차를 크게함으로써 냉력을 강화시키고, 저냉력 운전모드일 경우에는, 병렬로 연결된 제1,제2 모세관 사이의 온/오프밸브를 오픈시켜, 유동저항을 작게하여 압력차를 작게함으로써 냉력을 약화시킨다.In other words, in the high-cooling operation mode, the present invention closes the on / off valve between the first and second capillaries connected in parallel, increases the flow resistance to increase the pressure difference, thereby strengthening the cold power, and In the cold power operation mode, the on / off valves between the first and second capillaries connected in parallel are opened to reduce the flow resistance to reduce the pressure difference, thereby weakening the cold power.

상기 본 발명의 상세한 설명에서 행해진 구체적인 실시 양태 또는 실시예는 어디까지나 본 발명의 기술 내용을 명확하게 하기 위한 것으로 이러한 구체적 실시예에 한정해서 협의로 해석해서는 안되며, 본 발명의 정신과 다음에 기재된 특허 청구의 범위내에서 여러가지 변경 실시가 가능한 것이다.The specific embodiments or examples made in the detailed description of the present invention are intended to clarify the technical contents of the present invention to the extent that they should not be construed as limited to these specific embodiments and should not be construed in consultation. Various changes can be made within the scope of.

이상에서 상세히 설명한 바와같이 본 발명은, 고냉력 운전의 경우에는, 모세관의 길이를 길게 하고, 저냉력 운전의 경우에는 모세관의 길이를 짧게 함으로써, 각각의 운전모드에서 최적의 냉동싸이클을 구현하는 효과가 있다.As described in detail above, the present invention has an effect of realizing an optimal refrigeration cycle in each operation mode by increasing the length of the capillary tube in the case of high-cooling operation and shortening the length of the capillary tube in the case of low-cooling operation. There is.

Claims (3)

저온, 저압의 냉매증기를 흡입하여 이를 압축함으로써 고온, 고압의 증기로 만드는 압축기와;A compressor for sucking high-temperature and low-pressure refrigerant vapor and compressing it to produce high-temperature, high-pressure steam; 상기 압축기에서 토출된 고온, 고압의 냉매증기의 열을 물 또는 공기 중에 방출시키고, 고압의 포화액으로 변화시키는 응축기와;A condenser for dissipating heat of the high-temperature, high-pressure refrigerant vapor discharged from the compressor into water or air, and converting it into a high-pressure saturated liquid; 냉장고의 운전모드에 따라, 모세관의 최적 길이를 달리하여, 상기 응축기에서 토출된 고압의 포화액을 저온, 저압의 냉매로 팽창하는 팽창수단과;Expansion means for expanding a high pressure saturated liquid discharged from the condenser into a low temperature and low pressure refrigerant by varying an optimum length of the capillary tube according to an operation mode of the refrigerator; 고냉력 운전모드시, 상기 팽창수단을 통해 저온,저압의 냉매를 흡입하여 이를 증발시켜,냉동실로 열교환하여 차가워진 공기를 배출하는 제1 증발기와;A first evaporator that sucks and cools low-temperature and low-pressure refrigerant through the expansion means and heats it to a freezing chamber to discharge cold air in the high-cooling operation mode; 저냉력 운전모드시, 상기 팽창수단을 통해, 저온,저압의 냉매를 흡입하여 이를 증발시켜, 냉장실로 열교환하여 차가워진 공기를 배출하는 제2 증발기를 포함하는 것을 특징으로 하는 가변냉력 압축기를 이용한 냉장고의 냉동싸이클.In the low-cooling operation mode, the refrigerator using a variable cold compressor comprising a second evaporator to suck the refrigerant of low temperature, low pressure through the expansion means to evaporate it, to heat the cold compartment to discharge the cold air Freezing cycle. 제1 항에 있어서, 팽창수단은,The method of claim 1, wherein the expansion means, 고냉력 운전모드시, 고온고압의 포화액을 저온,저압의 냉매로 팽창하는 제1 모세관과;A first capillary tube for expanding the saturated liquid at high temperature and high pressure into a refrigerant having a low temperature and a low pressure in a high cold operation mode; 상기 제1 모세관에 병렬로 연결되어, 저냉력 운전모드시, 고온고압의 포화액을 저온,저압의 냉매로 팽창하는 제2 모세관으로 이루어진 것을 특징으로 하는 가변냉력 압축기를 이용한 냉장고의 냉동싸이클.And a second capillary tube connected in parallel to the first capillary tube to expand the saturated liquid at high temperature and high pressure into a refrigerant having a low temperature and a low pressure when the low temperature power mode is used. 제2 항에 있어서, 상기 제1 모세관과 제2 모세관 사이에 위치하여, 고냉력 운전모드시, 제2 모세관으로 토출되는 고온고압의 포화액을 차단하도록 클로우즈되고, 저냉력 운전모드시, 제2 모세관으로 고온고압의 포화액이 토출되도록 오프되는 온/오프 밸브를 더 포함하는 것을 특징으로 하는 가변냉력 압축기를 이용한 냉장고의 냉동싸이클.3. The method of claim 2, wherein the second capillary tube is positioned between the first capillary tube and the second capillary tube to close the high temperature and high pressure saturated liquid discharged to the second capillary tube in the high cold power operation mode, and the second capillary tube in the low cold power operation mode. A refrigeration cycle of a refrigerator using a variable cold compressor, characterized in that it further comprises an on / off valve which is turned off to discharge a high temperature and high pressure saturated liquid into a capillary tube.
KR1020010065099A 2001-10-22 2001-10-22 Freezing cycle for refrigerator using variable cooling compressor KR20030033358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020010065099A KR20030033358A (en) 2001-10-22 2001-10-22 Freezing cycle for refrigerator using variable cooling compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020010065099A KR20030033358A (en) 2001-10-22 2001-10-22 Freezing cycle for refrigerator using variable cooling compressor

Publications (1)

Publication Number Publication Date
KR20030033358A true KR20030033358A (en) 2003-05-01

Family

ID=29565767

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020010065099A KR20030033358A (en) 2001-10-22 2001-10-22 Freezing cycle for refrigerator using variable cooling compressor

Country Status (1)

Country Link
KR (1) KR20030033358A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040051050A (en) * 2002-12-11 2004-06-18 위니아만도 주식회사 Dual Type Structure Capillary of Cooling system
KR100615807B1 (en) 2004-09-03 2006-08-25 엘지전자 주식회사 Refrigerator
KR101146358B1 (en) * 2005-01-31 2012-05-17 엘지전자 주식회사 refrigerant expansion device for use in air conditioner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040051050A (en) * 2002-12-11 2004-06-18 위니아만도 주식회사 Dual Type Structure Capillary of Cooling system
KR100615807B1 (en) 2004-09-03 2006-08-25 엘지전자 주식회사 Refrigerator
KR101146358B1 (en) * 2005-01-31 2012-05-17 엘지전자 주식회사 refrigerant expansion device for use in air conditioner

Similar Documents

Publication Publication Date Title
KR100785116B1 (en) Refrigerator
JP2010509560A (en) Refrigeration cycle apparatus and refrigerator
KR20040020618A (en) Refrigerator
JP2004028563A (en) Operation control method for cooling system provided with two evaporators
JP3816872B2 (en) Operation control method of refrigeration system with two evaporators
KR20190126476A (en) Refrigerator
JPH10267503A (en) Method for circulating refrigerant for defrosting, and refrigerator using the method
KR20030033358A (en) Freezing cycle for refrigerator using variable cooling compressor
KR100309011B1 (en) Refrigeration cycle
KR0182726B1 (en) Defrosting apparatus for independent refrigerating type refrigerator
KR200251008Y1 (en) Refrigeration cycle device for refrigerator
KR0140961B1 (en) Refrigerator with two evaporators
KR20010111419A (en) Refrigerator with Phase change material
KR100442380B1 (en) Refrigerator
KR200300268Y1 (en) refrigeration system
KR20070025332A (en) Refrigerating system
KR100370091B1 (en) Methode for controlling working of refrigerator
RU2002110690A (en) Working substance for compression refrigeration units and heat pumps and installation for its implementation
KR100606706B1 (en) refrigerator and method for controlling the same
KR100370090B1 (en) Methode for controlling working of refrigerator
KR100693188B1 (en) Ultra-freezing refrigerator
KR100394007B1 (en) Methode for controlling working of refrigerator
KR100826181B1 (en) Apparatus for refrigeration cycle and refrigerator including the same
KR100370099B1 (en) Methode for controlling working of refrigerator
KR20030087151A (en) Device for prevention dewing of refrigerator

Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E601 Decision to refuse application