KR20000033193A - Refrigerator with super freezer - Google Patents

Refrigerator with super freezer Download PDF

Info

Publication number
KR20000033193A
KR20000033193A KR1019980049950A KR19980049950A KR20000033193A KR 20000033193 A KR20000033193 A KR 20000033193A KR 1019980049950 A KR1019980049950 A KR 1019980049950A KR 19980049950 A KR19980049950 A KR 19980049950A KR 20000033193 A KR20000033193 A KR 20000033193A
Authority
KR
South Korea
Prior art keywords
temperature
evaporator
refrigerant
refrigerator
freezer
Prior art date
Application number
KR1019980049950A
Other languages
Korean (ko)
Other versions
KR100550581B1 (en
Inventor
김상호
Original Assignee
구자홍
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 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019980049950A priority Critical patent/KR100550581B1/en
Publication of KR20000033193A publication Critical patent/KR20000033193A/en
Application granted granted Critical
Publication of KR100550581B1 publication Critical patent/KR100550581B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/04—Self-contained movable devices, e.g. domestic refrigerators specially adapted for storing deep-frozen articles
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—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
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing

Abstract

PURPOSE: A refrigerator with a super freezer chamber is provided in a freezer chamber to conveniently maintain food which should be maintained at a very low temperature. CONSTITUTION: A refrigerator with super freezer chamber having a compressor for compressing refrigerant into a vapor of high temperature and high pressure for cooling a freezer chamber and a cool chamber, a condenser and a radiating fan(72) for condensing the gaseous refrigerant into a liquid state by heat exchange with ambient air and raising the temperature of the refrigerant, a first expansion valve for reducing the pressure of the refrigerant and a first evaporator, includes a super freezer chamber(F') defined with an insulation wall(61) for temperature shutting off into a predetermined size at an upper part in the freezer chamber(F) and having a door(62), a second evaporator(60) for cooling inside of the super freezer chamber into a temperature -40°C lower than the freezer chamber, and a second expansion valve(65) provided between the first evaporator and the second evaporator for expanding a refrigerant.

Description

심온 냉동실을 갖는 냉장고Refrigerator with a deep freezer

본 발명은 음식물을 저온의 상태로 보관하는 냉장고에 관한 것으로서, 특히 냉동실 내부에 더욱 낮은 온도로 음식물을 보관할 수 있도록 하는 심온 냉동실을 갖는 냉장고에 관한 것이다.The present invention relates to a refrigerator for storing food at a low temperature, and more particularly to a refrigerator having a deep temperature freezer for storing food at a lower temperature inside the freezer compartment.

도 1 및 도 2는 종래 기술에 따른 냉장고의 내부 구조 및 냉기 순환 구조가 도시된 도면으로서, 도 1은 측면 구성도이고, 도 2는 정면 구성도이다.1 and 2 is a view showing the internal structure and the cold air circulation structure of the refrigerator according to the prior art, Figure 1 is a side configuration diagram, Figure 2 is a front configuration diagram.

이와 같은 냉장고는 통상적으로 상측에 냉동실(F)이 위치되고, 하측에는 냉장실(R)이 위치된다.In such a refrigerator, a freezing compartment F is usually positioned at an upper side thereof, and a refrigerating chamber R is positioned at a lower side thereof.

그리고, 상기 냉동실(F)의 후방에는 증발기(1) 및 냉각용 팬(2)이 구비되어 여기서 발생한 냉기의 일부는 그릴판(3)에 형성된 냉기 출구(3a)(3b)를 통해 냉동실(F)로 보내지고, 일부는 유입 통로(4)를 통해 냉장실(R)의 냉기 출구(4a)로 보내진다. 이렇게 냉동실(F) 및 냉장실(R)로 유입된 냉기는 다시 냉기 회수로(5)를 통해 상기 증발기(1) 및 냉각용 팬(2)쪽으로 유동하면서 순환하게 된다.In addition, an evaporator 1 and a cooling fan 2 are provided at the rear of the freezing chamber F so that a part of the cold air generated therein is freezing chamber F through the cold air outlets 3a and 3b formed on the grill plate 3. ) Is sent to the cold air outlet 4a of the refrigerating chamber R through the inflow passage 4. The cold air introduced into the freezer compartment F and the refrigerating compartment R is circulated while flowing toward the evaporator 1 and the cooling fan 2 through the cold air recovery passage 5 again.

도 1에서 미설명 부호 6과 6'는 도어이고, 8은 선반이며, 10은 압축기이다.In FIG. 1, reference numerals 6 and 6 'are doors, 8 are shelves, and 10 are compressors.

상기와 같은 종래 기술에 따른 냉장고는 도 3과 같은 냉동 시스템을 갖는 바, 냉매를 압축시켜 고온고압의 증기상태로 변환시키는 압축기(10)와, 상기 압축기(10)를 통해 고온고압의 증기상태가 된 냉매를 주위의 공기와 열교환시켜 냉매를 고압의 액상태로 응축시킴과 동시에 공기의 온도를 상승시키는 응축기(12) 및 방열 팬(13)과, 상기 응축기(12)를 통해 고압의 액상태가 된 냉매가 증발하기 쉬운 상태가 되도록 감압시키는 팽창 밸브(15)와, 상기 팽창 밸브(15)를 통해 저온저압의 저건도 상태가 된 냉매를 주위의 공기와 열교환시켜 냉매를 저온저압의 증기상태로 변환시킴과 동시에 공기의 온도를 감소시키는 증발기(1) 및 냉각용 팬(2)으로 이루어진다.The refrigerator according to the prior art as described above has a refrigeration system as shown in Figure 3, the compressor 10 for compressing the refrigerant to convert to a high temperature and high pressure steam state, and the high temperature and high pressure steam state through the compressor 10 The condenser 12 and the heat dissipation fan 13 to increase the temperature of the air while condensing the refrigerant to a high pressure liquid state by exchanging the refrigerant with surrounding air, and a high pressure liquid state is provided through the condenser 12. An expansion valve 15 for depressurizing the refrigerant to be easily evaporated, and the refrigerant which has become a low-dry state of low temperature and low pressure through the expansion valve 15 by heat-exchanging with ambient air to bring the refrigerant into a low-temperature low-pressure vapor state. It consists of an evaporator 1 and a cooling fan 2 which reduce the temperature of the air while converting.

상기와 같이 구성된 냉장고의 냉동 시스템의 작동은 먼저, 압축기(10)에 의해 압축된 냉매가 고온고압의 증기상태로 변화된 후 응축기(12)로 흡입되면, 상기 응축기(12)는 열을 방출하여 냉매를 상온고압의 액상태로 변화시킨다. 이후, 상기 응축기(12)에 의해 응축된 냉매는 팽창 밸브(15)를 지나면서 감압되어 그 중 일부가 감압됨으로써 액체와 기체가 혼합된 2상 상태가 된다. 이후, 상기 증발기(1)로 흡입된 냉매는 완전히 기화되면서 주위의 열을 빼앗아 주변을 냉각시키게 되고, 이렇게 상기 증발기(1)에 의해서 냉각된 공기가 냉각용 팬(2)에 의해 강제 유동되면서 냉동실(F)과 냉장실(R)로 제공된다.Operation of the refrigeration system of the refrigerator configured as described above, first, when the refrigerant compressed by the compressor 10 is converted into a vapor state of high temperature and high pressure and then sucked into the condenser 12, the condenser 12 releases the heat to the refrigerant Change to the liquid state at room temperature and high pressure. Thereafter, the refrigerant condensed by the condenser 12 is depressurized while passing through the expansion valve 15, and a part of the refrigerant is depressurized to be in a two-phase state in which liquid and gas are mixed. Thereafter, the refrigerant sucked into the evaporator 1 is completely vaporized to take the heat of the surroundings to cool the surroundings, and thus the air cooled by the evaporator 1 is forcedly flowed by the cooling fan 2, and the freezing chamber (F) and refrigerating chamber (R).

그러나, 상기와 같은 종래 기술의 냉장고는 냉동실(F)의 내부 온도가 약 -18℃ 정도로 유지되기 때문에 필요에 따라 더욱 낮은 온도로 음식물 보관이 요구될 경우에는 충분히 대응할 수 없는 문제점이 있다.However, the refrigerator of the prior art as described above has a problem that cannot be sufficiently handled when food storage is required at a lower temperature as necessary because the internal temperature of the freezer compartment F is maintained at about -18 ° C.

즉, 상기한 바와 같은 종래 기술의 냉동 사이클을 같은 냉장고는 -40℃정도까지 냉동실의 고내 온도를 낮출 수 없기 때문에 참치와 같이 더 낮은 온도가 요구되는 음식물의 보관에는 적합하지 않은 문제점이 있는 것이다.That is, the refrigerator having the same refrigeration cycle of the prior art as described above is not suitable for the storage of foods requiring a lower temperature, such as tuna because the internal temperature of the freezer can not be lowered to about -40 ℃.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 냉동실 내부에 -40℃정도까지 고내 온도를 낮출 수 있는 심온 냉동실을 설치하여 더욱 낮은 온도를 필요로 하는 음식물을 용이하게 보관할 수 있도록 하는 심온 냉동실을 갖는 냉장고를 제공하는 데 있다.The present invention has been made in order to solve the above problems, the deep-temperature freezer to install a deep-temperature freezer that can lower the internal temperature to about -40 ℃ inside the freezer compartment to easily store foods requiring a lower temperature It is to provide a refrigerator having a.

상기한 과제를 실현하기 위한 본 발명에 따른 심온 냉동실을 갖는 냉장고는, 냉장실 및 냉동실을 냉각하기 위해 압축기, 응축기, 제1 팽창 밸브 및 제1 증발기가 구비되어 있는 냉장고에 있어서, 상기 냉동실 내에는 소정 크기로 구획된 심온 냉동공간이 구비되고; 상기 심온 냉동공간에는 상기 냉동실보다 더욱 낮은 온도로 내부 공간을 냉각시키기 위해 제2 증발기가 설치되며; 상기 제1 증발기와 제2 증발기 사이에는 냉매를 팽창시키는 제2 팽창 밸브가 설치되어 있는 것을 특징으로 하여 가능하게 된다.A refrigerator having a deep-temperature freezer according to the present invention for realizing the above object is a refrigerator including a compressor, a condenser, a first expansion valve, and a first evaporator for cooling a refrigerating compartment and a freezing compartment, wherein A deep freezing space partitioned in size; A second evaporator is installed in the deep freezing space to cool the internal space at a lower temperature than the freezing compartment; A second expansion valve for expanding the refrigerant is provided between the first evaporator and the second evaporator.

도 1은 종래 기술에 따른 냉장고의 측면 구성도,1 is a side configuration diagram of a refrigerator according to the prior art,

도 2는 종래 기술에 따른 냉장고의 정면 구성도,2 is a front configuration diagram of a refrigerator according to the prior art,

도 3은 종래 기술에 따른 냉장고의 냉동 사이클선도,3 is a refrigeration cycle diagram of a refrigerator according to the prior art,

도 4는 본 발명에 따른 심온 냉동실을 갖는 냉장고의 측면 구성도,4 is a side configuration diagram of a refrigerator having a deep temperature freezer according to the present invention;

도 5는 본 발명에 따른 심온 냉동실을 갖는 냉장고의 정면 구성도,5 is a front configuration diagram of a refrigerator having a deep temperature freezer according to the present invention;

도 6은 본 발명에 따른 심온 냉동실을 갖는 냉장고의 냉동 사이클선도이다.6 is a refrigeration cycle diagram of a refrigerator having a deep-temperature freezer according to the present invention.

＜도면의 주요 부분에 대한 부호의 설명＞<Description of the code | symbol about the principal part of drawing>

F : 냉동실 F' : 심온 냉동실F: Freezer F ': Deep freezer

R : 냉장실 BL : 바이패스 냉매관R: Refrigerating chamber BL: Bypass refrigerant pipe

51 : 증발기 52 : 냉각용 팬51: evaporator 52: cooling fan

53 : 그릴판 54 : 유입 통로53 grill plate 54 inflow passage

55 : 냉기 회수로 56 : 도어55: cold air recovery passage 56: door

60 : 심온 증발기 61 : 단열벽60: deep evaporator 61: heat insulation wall

62 : 도어 65 : 제2 팽창 밸브62: door 65: second expansion valve

70 : 압축기 71 : 응축기70: compressor 71: condenser

72 : 방열팬 73 : 제1 팽창 밸브72: heat radiating fan 73: first expansion valve

75 : 온오프 제어 밸브75: on-off control valve

이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 4와 도 5는 본 발명에 따른 심온 냉동실을 갖는 냉장고의 측면 구성도 및 정면 구성도이고, 도 6은 본 발명의 냉동 사이클이 도시된 도면이다.4 and 5 are a side view and a front view of the refrigerator having a temperature freezer compartment according to the present invention, Figure 6 is a view showing a refrigeration cycle of the present invention.

도 4와 도 5를 참고하면, 본 발명에 따른 냉장고는 상측에 심온 냉동실(F')이 설치되어 있는 냉동실(F)이 위치되고, 하측에는 냉장실(R)이 위치된다.4 and 5, in the refrigerator according to the present invention, a freezing compartment F in which a deep freezing compartment F 'is installed is positioned at an upper side thereof, and a refrigerating chamber R is positioned at a lower side thereof.

여기서, 상기 심온 냉동실(F')은 냉동실(F)의 상측 한쪽에 사각 박스형으로 설치되어 내부에 별도의 심온 증발기(60)가 구비되고, 이 심온 냉동실(F')을 이루는 벽은 냉동실(F)과의 온도 차단을 위해 단열벽(61)으로 이루어진다.Here, the deep-temperature freezer (F ') is installed in a rectangular box shape on the upper side of the freezer compartment (F) is provided with a separate deep-temperature evaporator 60 therein, the wall forming the deep-temperature freezer (F') is a freezer compartment (F). It is made of a heat insulating wall 61 for blocking the temperature with.

그리고, 상기 냉동실(F)의 후방에는 냉동실(F)과 냉장실(R)을 냉각시키기 위해 증발기(51) 및 냉각용 팬(52)이 구비되어, 여기서 발생한 냉기 중 일부는 그릴판(53)에 형성된 냉기 출구(53a)(53b)를 통해 바로 냉동실(F)로 보내지고, 일부는 유입 통로(54)를 통해 냉장실(R)의 냉기 출구(54a)로 보내진다.In addition, an evaporator 51 and a cooling fan 52 are provided at the rear of the freezing chamber F to cool the freezing chamber F and the refrigerating chamber R, and some of the cold air generated therein is provided on the grill plate 53. It is sent directly to the freezer compartment F through the formed cold air outlet 53a, 53b, and a part is sent to the cold air outlet 54a of the refrigerating chamber R through the inflow path 54. As shown in FIG.

이와 같이 냉동실(F) 및 냉장실(R)로 유입된 냉기는 다시 냉기 회수로(55)를 통해 상기 증발기(51) 및 냉각용 팬(52)쪽으로 유동하면서 순환하도록 되어 있다.The cold air introduced into the freezing chamber F and the refrigerating chamber R is circulated while flowing toward the evaporator 51 and the cooling fan 52 through the cold air recovery path 55 again.

특히, 상기 냉동실(F) 내에 설치된 심온 냉동실(F')에는 제2 팽창 밸브(65)로 연결되는 심온 증발기(60)가 구비되어 심온 냉동실(F')의 고내 온도를 -40℃까지 낮출 수 있도록 되어 있다.In particular, the deep-temperature freezer (F ') installed in the freezing compartment (F) is provided with a deep-temperature evaporator 60 connected to the second expansion valve (65) to lower the internal temperature of the deep-temperature freezer (F') to -40 ℃. It is supposed to be.

그리고, 상기 심온 냉동실(F')에는 열차단을 위해 단열벽(61)으로 둘러싸인 앞쪽에는 내부를 개폐할 수 있도록 냉동실(F)의 도어(56)와는 별도로 내부 도어(62)가 설치되어 있다.In addition, the deep temperature freezer compartment F 'is provided with an inner door 62 separately from the door 56 of the freezer compartment F so as to open and close the inside at the front side surrounded by the heat insulation wall 61 for the thermal cutoff.

이와 같은 본 발명에 따른 냉장고는 도 6에 도시된 바와 같은 냉동 시스템을 통해 작동되는 데, 통상의 냉동 시스템의 증발기(51)와 압축기(70) 사이에 추가로 제2 팽창 밸브(65)와 심온 냉동실에 설치되는 심온 증발기(60)를 구비하고, 상기 제2 팽창 밸브(65)와 심온 증발기(60)를 통과하지 않는 바이패스 냉매관(BL) 상에 온오프 제어 밸브(75)가 설치되어 있다.Such a refrigerator according to the present invention is operated through a refrigeration system as shown in Figure 6, between the evaporator 51 and the compressor 70 of the conventional refrigeration system in addition to the second expansion valve 65 and the core temperature An on-off control valve 75 is provided on a bypass refrigerant pipe BL that does not pass through the second expansion valve 65 and the temperature evaporator 60. have.

즉, 본 발명의 냉동 시스템은 냉매를 압축시켜 고온고압의 증기상태로 변환시키는 압축기(70)와, 상기 압축기(70)를 통해 고온고압의 증기상태가 된 냉매를 주위의 공기와 열교환시켜 냉매를 고압의 액상태로 응축시킴과 동시에 공기의 온도를 상승시키는 응축기(71) 및 방열 팬(72)과, 상기 응축기(71)를 통해 고압의 액상태가 된 냉매가 증발하기 쉬운 상태가 되도록 감압시키는 제1 팽창 밸브(73)와, 상기 제1 팽창 밸브(73)를 통해 저온저압의 저건도 상태가 된 냉매를 냉동실과 냉장실을 순환하는 공기와 열교환시켜 냉매를 저온저압의 증기상태로 변환시킴과 동시에 순환 공기의 온도를 감소시키는 증발기(51) 및 냉각용 팬(52)과, 상기 증발기(51)를 통과한 냉매를 재 팽창시키는 제2 팽창 밸브(65)와, 냉동실의 심온 냉동실 내부에 설치되어 상기 제2 팽창 밸브(65)를 통해 팽창된 냉매를 증발시킴으로써 심온 냉동실의 내부 온도를 더욱 저하시키는 심온 증발기(60)로 구성된다.That is, the refrigerating system of the present invention compresses the refrigerant and converts the refrigerant into a high temperature and high pressure vapor state, and heats the refrigerant which has become a high temperature and high pressure steam state through the compressor 70 by exchanging heat with surrounding air. The condenser 71 and the heat dissipation fan 72 which increase the temperature of the air while condensing the liquid in a high pressure state, and depressurizing the refrigerant, which has become a high pressure liquid state through the condenser 71, are easily evaporated. And converts the refrigerant into a low-temperature low-pressure vapor state by heat-exchanging the refrigerant which has become a low-temperature low-temperature state through the first expansion valve 73 and the first expansion valve 73 with air circulating in the freezer compartment and the refrigerating compartment. At the same time, the evaporator 51 and cooling fan 52 for reducing the temperature of the circulating air, the second expansion valve 65 for re-expanding the refrigerant passing through the evaporator 51, and the inside of the freezing chamber deep-temperature freezer To the second expansion valve ( And a deep evaporator 60 which further lowers the internal temperature of the deep freezer compartment by evaporating the expanded refrigerant through 65.

또한, 본 발명은 상기 증발기(51)와 제2 팽창 밸브(65) 사이의 냉매 배관에서 바로 심온 증발기(60)와 압축기(70) 사이의 냉매 배관으로 연결되는 바이패스 냉매관(BL)이 설치되고, 이 바이패스 냉매관(BL) 상에는 온오프 제어 밸브(75)가 설치되어 냉매의 흐름을 제어할 수 있도록 되어 있다.In addition, the present invention is provided with a bypass refrigerant pipe (BL) connected directly to the refrigerant pipe between the temperature evaporator 60 and the compressor 70 in the refrigerant pipe between the evaporator 51 and the second expansion valve (65). The on-off control valve 75 is provided on the bypass coolant pipe BL to control the flow of the coolant.

여기서, 상기 온오프 제어 밸브(75)는 상기 심온 냉동실(F')을 냉동실(F)의 온도로 사용할 경우 바이패스 냉매관(BL)을 개방하여 제2 팽창 밸브(65)와 심온 증발기(60)로의 냉매 흐름은 거의 이루어지지 않도록 하고, 상기한 증발기(51)에서 바이패스 냉매관(BL)을 통해 바로 압축기(70)로 냉매가 유동하도록 하는 역할을 한다.Here, when the on-off control valve 75 uses the deep freezing compartment F 'as the temperature of the freezing compartment F, the bypass refrigerant pipe BL is opened to open the second expansion valve 65 and the deep evaporator 60. In the evaporator 51, the refrigerant flows to the compressor and the refrigerant flows directly to the compressor 70 through the bypass refrigerant pipe BL.

물론, 상기 온오프 제어 밸브(75)는 사용자가 냉장고 외부 또는 냉장실(R)이나 냉동실(F) 내부에서 스위치 조작을 통해 제어할 수 있도록 스위치 회로(미도시 됨)와 연결되는 것이 바람직하다.Of course, the on-off control valve 75 is preferably connected to a switch circuit (not shown) so that the user can control through a switch operation in the refrigerator or the refrigerator compartment (R) or inside the freezer compartment (F).

상기와 같이 구성되는 본 발명에 따른 심온 냉동실을 갖는 냉장고의 작용을 설명하면 다음과 같다.Referring to the operation of the refrigerator having a deep-temperature freezer according to the present invention configured as described above are as follows.

먼저, 압축기(70)에 의해 압축된 냉매가 고온고압의 증기상태로 변화된 후 응축기(71)로 흡입되면, 상기 응축기(71)는 열을 방출하여 냉매를 상온고압의 액상태로 변화시킨다. 이후, 상기 응축기(71)에 의해 응축된 냉매는 제1 팽창 밸브(73)를 지나면서 팽창되어 그 중 일부가 감압됨으로써 액체와 기체가 혼합된 2상 상태가 된다.First, when the refrigerant compressed by the compressor 70 is changed into a vapor state of high temperature and high pressure, and then sucked into the condenser 71, the condenser 71 releases heat to change the refrigerant into a liquid state of normal temperature and high pressure. Thereafter, the refrigerant condensed by the condenser 71 is expanded while passing through the first expansion valve 73, and a part of the refrigerant is decompressed to be in a two-phase state in which liquid and gas are mixed.

다음, 상기 제1 팽창 밸브(73)를 통해 증발기(51)로 흡입된 냉매는 일부가 기화되면서 순환 공기의 열을 빼앗아 주변을 냉각시키고, 이렇게 냉각된 순환 공기는 냉동실(F)과 냉장실(R)로 공급되어 냉동실(F)과 냉장실(R) 내부를 냉각시키게 된다.Next, the refrigerant sucked into the evaporator 51 through the first expansion valve 73 takes the heat of the circulating air while the part is vaporized to cool the surroundings, and the cooled circulating air is the freezing chamber F and the refrigerating chamber R. ) Is supplied to cool the freezer compartment (F) and the refrigerating compartment (R).

다음, 상기 증발기(51)를 통과하면서 증발된 일부 냉매는 제2 팽창 밸브(65)를 지나면서 팽창되어 심온증발기(60)로 흡입된다. 이와 같이 상기 심온증발기(60)로 흡입된 냉매는 완전히 기화되면서 심온 냉동실(F')내의 열을 빼앗아 -40℃ 정도의 저온으로 냉각시키고, 압축기(70)로 순환하게 된다.Next, some of the refrigerant evaporated while passing through the evaporator 51 is expanded while passing through the second expansion valve 65 and sucked into the temperature evaporator 60. As described above, the refrigerant sucked into the temperature evaporator 60 is completely vaporized, takes heat from the deep temperature freezer compartment F ′, cools it to a low temperature of about −40 ° C., and circulates the compressor 70.

여기서, 상기 심온 냉동실(F')의 온도를 상기와 같이 -40℃ 정도로 유지할 필요가 없을 경우에는 온오프 제어 밸브(75)를 개방하여 증발기를 통과한 냉매가 바이패스 냉매관(BL)을 통해 바로 압축기(70) 쪽으로 흐르도록 한다. 이때, 상기 심온 냉동실(F')의 온도는 냉매가 제2 팽창 밸브(65)와 심온 증발기(60)로 흐르지 않으므로 시간이 지나면 냉동실(F)의 온도와 거의 같아지게 된다.Here, when it is not necessary to maintain the temperature of the deep-temperature freezer compartment F 'to about -40 ° C as described above, the refrigerant passing through the evaporator by opening the on / off control valve 75 is passed through the bypass refrigerant pipe BL. Flows directly toward the compressor (70). At this time, the temperature of the deep-temperature freezer (F ') is almost the same as the temperature of the freezer (F) over time because the refrigerant does not flow to the second expansion valve 65 and the temperature evaporator (60).

상기한 바와 같은 본 발명의 심온 냉동실을 갖는 냉장고는 증발기와 압축기 사이에 제2 팽창 밸브와 심온 증발기를 설치하여 냉동실 내에 구비된 심온 냉동실의 온도를 -40℃ 정도까지 낮출 수 있도록 구성되어 있기 때문에 극저온 상태의 냉동 보관을 요하는 음식물을 용이하게 보관할 수 있는 이점을 제공하게 된다.The refrigerator having a deep-temperature freezer of the present invention as described above is a cryogenic because it is configured to lower the temperature of the deep-temperature freezer provided in the freezer to about -40 ℃ by installing a second expansion valve and a deep evaporator between the evaporator and the compressor It provides an advantage that can easily store food that requires the frozen storage of the state.

Claims (1)

냉장실 및 냉동실을 냉각하기 위해 압축기, 응축기, 제1 팽창 밸브 및 제1 증발기가 구비되어 있는 냉장고에 있어서,A refrigerator provided with a compressor, a condenser, a first expansion valve, and a first evaporator for cooling a refrigerator compartment and a freezer compartment, 상기 냉동실 내에는 소정 크기로 구획된 심온 냉동공간이 구비되고;A deep temperature freezing space partitioned into a predetermined size in the freezing compartment; 상기 심온 냉동공간에는 상기 냉동실보다 더욱 낮은 온도로 내부 공간을 냉각시키기 위해 제2 증발기가 설치되며;A second evaporator is installed in the deep freezing space to cool the internal space at a lower temperature than the freezing compartment; 상기 제1 증발기와 제2 증발기 사이에는 냉매를 팽창시키는 제2 팽창 밸브가 설치되어 있는 것을 특징으로 하는 심온 냉동실을 갖는 냉장고.And a second expansion valve is installed between the first evaporator and the second evaporator to expand the refrigerant.
KR1019980049950A 1998-11-20 1998-11-20 Refrigerator with a deep freezer KR100550581B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980049950A KR100550581B1 (en) 1998-11-20 1998-11-20 Refrigerator with a deep freezer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980049950A KR100550581B1 (en) 1998-11-20 1998-11-20 Refrigerator with a deep freezer

Publications (2)

Publication Number Publication Date
KR20000033193A true KR20000033193A (en) 2000-06-15
KR100550581B1 KR100550581B1 (en) 2006-09-20

Family

ID=19559134

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980049950A KR100550581B1 (en) 1998-11-20 1998-11-20 Refrigerator with a deep freezer

Country Status (1)

Country Link
KR (1) KR100550581B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100756512B1 (en) * 2006-04-14 2007-09-10 엘지전자 주식회사 Refrigerator having
KR100780008B1 (en) * 2006-11-02 2007-11-27 주식회사 대우일렉트로닉스 Apparatus for quick freezing of refrigerator
WO2018135826A1 (en) * 2017-01-19 2018-07-26 주식회사 신진에너텍 System for cooling and defrosting quick-freezing chamber, freezing chamber, and refrigerating chamber in three stages

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102363407B1 (en) 2017-07-05 2022-02-16 엘지전자 주식회사 Refrigerator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969680A (en) * 1982-10-13 1984-04-19 松下冷機株式会社 Refrigerator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100756512B1 (en) * 2006-04-14 2007-09-10 엘지전자 주식회사 Refrigerator having
WO2007119963A1 (en) * 2006-04-14 2007-10-25 Lg Electronics Inc. Refrigerator
US8783056B2 (en) 2006-04-14 2014-07-22 Lg Electronics Inc. Refrigerator
KR100780008B1 (en) * 2006-11-02 2007-11-27 주식회사 대우일렉트로닉스 Apparatus for quick freezing of refrigerator
WO2018135826A1 (en) * 2017-01-19 2018-07-26 주식회사 신진에너텍 System for cooling and defrosting quick-freezing chamber, freezing chamber, and refrigerating chamber in three stages
KR20180085839A (en) * 2017-01-19 2018-07-30 주식회사 신진에너텍 Triple cooling system for rapid freezing chamber, freezing chamber and refrigerating chamber
CN110662932A (en) * 2017-01-19 2020-01-07 株式会社新进能量技术 3-stage cooling and defrost system using quick freezing chamber, freezing chamber and refrigerating chamber
CN110662932B (en) * 2017-01-19 2021-09-03 株式会社新进能量技术 3-stage cooling and defrost system using quick freezing chamber, freezing chamber and refrigerating chamber

Also Published As

Publication number Publication date
KR100550581B1 (en) 2006-09-20

Similar Documents

Publication Publication Date Title
US8408022B2 (en) Hybrid cascade vapor compression refrigeration system
CA2485757A1 (en) Thermo-siphon chiller refrigerator for use in cold district
KR102455080B1 (en) Mobile air conditioner and its cooling method
JP2005326138A (en) Cooling device and vending machine with it
CN100371662C (en) Refrigerator
JP2009300000A (en) Refrigerator-freezer and cooling storage
CN106257194A (en) Ice-making system and ice making method for refrigerator
JP3975664B2 (en) Refrigerating refrigerator, operation method of freezing refrigerator
JP3995562B2 (en) refrigerator
KR20190126476A (en) Refrigerator
KR100550581B1 (en) Refrigerator with a deep freezer
JP2005257149A (en) Refrigerator
JP2004324902A (en) Freezing refrigerator
KR100293700B1 (en) Refrigeration system of refrigerator and its control method
KR100377618B1 (en) Refrigerator with Phase change material
JP2004085104A (en) Refrigerator
JP2010249444A (en) Freezer-refrigerator
KR100594423B1 (en) Refrigerating system using two stage refrigerating cycle
KR100522795B1 (en) Refrigerator that cool directly
KR20000004490A (en) Device for cooling vegetable keeping box of refrigerator
KR100394008B1 (en) Refrigerating cycle for refrigerator and method for controlling the same
JP2010210133A (en) Refrigerating cycle device
KR100404192B1 (en) Refrigerating cycle of refrigerator
KR20080058816A (en) A refrigeration cycle
KR0136046B1 (en) Refrigeration apparatus with two evaporators

Legal Events

Date Code Title Description
N231 Notification of change of applicant
A201 Request for examination
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
J201 Request for trial against refusal decision
AMND Amendment
B701 Decision to grant
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090105

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee