KR20090111663A - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
KR20090111663A
KR20090111663A KR1020080037374A KR20080037374A KR20090111663A KR 20090111663 A KR20090111663 A KR 20090111663A KR 1020080037374 A KR1020080037374 A KR 1020080037374A KR 20080037374 A KR20080037374 A KR 20080037374A KR 20090111663 A KR20090111663 A KR 20090111663A
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KR
South Korea
Prior art keywords
refrigerant
refrigerator
freezer compartment
refrigeration cycle
compartment
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Application number
KR1020080037374A
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Korean (ko)
Inventor
김현주
신대식
Original Assignee
삼성전자주식회사
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Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020080037374A priority Critical patent/KR20090111663A/en
Priority to US12/385,313 priority patent/US20090260379A1/en
Publication of KR20090111663A publication Critical patent/KR20090111663A/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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/19—Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2507—Flow-diverting valves

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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)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

PURPOSE: A refrigerator is provided to minimize power consumption while securing cooling performance of the freezer compartment by regulating the circulation of refrigerant according to the cooling load. CONSTITUTION: A refrigerator includes a refrigerator compartment(20), a freezer compartment(10), and a cooling system. The cooling system is equipped with first and second evaporators(11,21) corresponding to the refrigerator compartment and the freezer compartment, and includes first and second cooling cycles. The first cooling cycle cools both the evaporators at the same time, and the second cooling cycle cools one of the evaporators only. The second cooling cycle includes a bypass channel to bypass one of the evaporators, and a reservoir(60) which is provided in the bypass channel and controls a part of refrigerant circulating through the second cooling cycle.

Description

냉장고{Refrigerator}Refrigerator {Refrigerator}

본 발명은 냉장고에 관한 것으로, 특히 냉동실의 단독냉각에서 냉매가 불필요하게 순환되는 것을 방지하기 위하여 리저버를 설치한 냉장고에 관한 것이다. The present invention relates to a refrigerator and, more particularly, to a refrigerator provided with a reservoir in order to prevent the refrigerant from being circulated unnecessarily in the single cooling of the freezer compartment.

일반적으로 냉장고는 음식물을 저장하는 냉장실과 냉동실이 형성된 본체와, 냉장실과 냉동실에 형성된 개구부를 개폐하는 도어와, 본체에 마련되어 냉동실과 냉장실을 냉각하도록 냉기를 공급하는 냉동사이클을 포함하여 구성된다. 최근에 냉동사이클 중에는 냉장실과 냉동실에 독립적으로 냉기를 공급하도록 별도의증발기를 마련한 냉장고가 개시되어 있다. In general, a refrigerator includes a body having a refrigerator compartment and a freezer compartment for storing food, a door for opening and closing an opening formed in the refrigerator compartment and the freezer compartment, and a refrigeration cycle provided in the body to supply cold air to cool the freezer compartment and the refrigerator compartment. Recently, a refrigerator having a separate evaporator is disclosed to supply cold air to a refrigerator compartment and a freezer compartment independently during a refrigeration cycle.

이와 같이, 냉장실과 냉동실에 대응하여 별도의 증발기를 갖는 냉동사이클 구비한 냉장고의 일 예가 한국공개특허공보 제10-2004-64787호 등에 개시되어 있다. 또한 한국등록특허 제10-0687934호에서는 냉동실증발기와 냉장실증발기를 직렬로 연결하여 냉동실과 냉장실의 동시냉각과 냉장실의 단독냉각을 제어하는 냉매회로를 갖는 냉장고가 개시된다. As such, an example of a refrigerator having a refrigeration cycle having separate evaporators corresponding to the refrigerating chamber and the freezing chamber is disclosed in Korean Patent Laid-Open No. 10-2004-64787. In addition, Korean Patent No. 10-0687934 discloses a refrigerator having a refrigerant circuit for controlling the simultaneous cooling of the freezer compartment and the refrigerating compartment and the independent cooling of the refrigerating compartment by connecting a freezer compartment evaporator and a refrigerator compartment evaporator in series.

이러한 냉장고의 냉동사이클은 압축된 냉매를 냉장실증발기와 냉동실증발기로 공급하기 위한 공급냉매관과, 냉장실증발기와 냉동실증발기가 각각 장착되도록 공급냉매관으로부터 분기된 제1냉매배관과 제2냉매배관과, 제1냉매배관의 출구측을 제2냉매배관의 입구측에 연결하는 연결냉매관과, 공급냉매관과 제1 및 제2냉매배관 사이에 마련되어 제1 및 제2냉매배관을 개폐하는 밸브를 포함하여 구성된다. The refrigeration cycle of the refrigerator includes a supply refrigerant pipe for supplying the compressed refrigerant to the refrigerator compartment evaporator and the freezer compartment evaporator, a first refrigerant pipe and a second refrigerant pipe branched from the supply refrigerant pipe so as to be equipped with the refrigerator compartment evaporator and the freezer compartment evaporator, respectively; And a connecting refrigerant pipe connecting the outlet side of the first refrigerant pipe to the inlet side of the second refrigerant pipe, and a valve provided between the supply refrigerant pipe and the first and second refrigerant pipes to open and close the first and second refrigerant pipes. It is configured by.

이러한 종래의 냉장고는 밸브에서 냉동실과 냉장실의 동시냉각이 필요할 때 냉동실과 냉장실이 직렬로 연결되어 구성된 제1냉매배관으로 냉매가 흐르도록 하고, 냉동실의 단독냉각이 필요할 때는 냉동실증발기로 직접 연결된 제2냉매배관으로 냉매가 흐르도록 구성된다. 한편 순환되는 냉매량을 운전조건별로 달리 하도록 조절을 할 수 없기에, 냉동부하가 큰 조건인 냉동실과 냉장실의 동시냉각을 기준으로 냉매량을 결정하여 봉입하게 된다. Such a conventional refrigerator allows a refrigerant to flow into a first refrigerant pipe having a freezer compartment and a refrigerating compartment connected in series when a freezer compartment and a refrigerating compartment are simultaneously cooled at a valve, and a second direct connection to a freezer compartment evaporator when the freezer compartment alone needs to be cooled. The refrigerant flows through the refrigerant pipe. On the other hand, since the amount of refrigerant circulated cannot be adjusted to be different for each operation condition, the refrigerant amount is determined and enclosed based on the simultaneous cooling of the freezer compartment and the refrigerating compartment, which are conditions of a large freezer load.

그러나, 종래의 냉장고는 냉동부하가 작은 냉동실의 단독운전에서는 필요량보다 많은 냉매가 순환하게 되어 압축기의 부하가 커지는 문제점이 있다. 즉, 냉동실증발기에만 냉매를 공급시켜야 할 때에도 냉동실과 냉장실의 동시냉각을 기준으로 봉입된 냉매가 냉동실증발기를 순환하게 되어 압축기가 더 작동되어야하기 때문에 불필요한 전력이 소비되는 문제가 있었다.However, the conventional refrigerator has a problem in that a load of the compressor is increased because more refrigerant circulates than necessary amount in a single operation of a freezer compartment having a low freezing load. That is, even when it is necessary to supply the refrigerant only to the freezer compartment evaporator, there is a problem in that unnecessary power is consumed because the refrigerant sealed based on the simultaneous cooling of the freezer compartment and the refrigerating compartment circulates the freezer compartment evaporator.

따라서 본 발명에서는 냉매배관에 리저버를 설치하여, 냉동실의 단독운전에 필요한 냉매의 초과량을 냉동실 단독냉각기간동안 보관하게 하여, 냉동부하에 맞도록 냉매량의 순환조절이 가능하도록 함으로써 냉동실의 냉각성능을 만족하면서도 최소의 전력을 사용하여 효율이 증가된 냉장고를 제공하는 것을 목적으로 한다.Therefore, in the present invention, by installing a reservoir in the refrigerant pipe, the excess amount of the refrigerant required for independent operation of the freezer compartment is stored during the freezer compartment alone cooling period, the circulation of the refrigerant can be adjusted to meet the freezer load, thereby improving the cooling performance of the freezer compartment. It is an object of the present invention to provide a refrigerator which satisfactorily increases efficiency by using minimum power.

본 발명에 따른 냉장고는 냉장실 및 냉동실과, 냉장실과 냉동실에 대응하는 제1,2증발기를 구비하는 냉동사이클을 포함하는 냉장고에서, 냉동사이클은 제1,2증발기를 동시에 냉각하기 위한 제1냉동사이클과, 제1,2증발기 중 어느 하나를 단독냉각하기 위한 제2냉동사이클을 포함하고, 제2냉동사이클은 상기 제1,2증발기 중 다른 하나를 바이패스하는 바이패스유로와, 상기 바이패스유로에 마련되어 상기 제2냉동사이클을 순환하는 냉매의 일부를 저장하여 냉매유량을 조절하는 리저버를 포함하는 것을 특징으로 것을 특징으로 한다. In the refrigerator according to the present invention, a refrigerator including a refrigerating compartment and a freezing compartment and a refrigerating cycle having first and second evaporators corresponding to the refrigerating compartment and the freezing compartment, wherein the refrigerating cycle is a first refrigeration cycle for simultaneously cooling the first and second evaporators. And a second refrigeration cycle for solely cooling one of the first and second evaporators, wherein the second refrigeration cycle bypasses the other of the first and second evaporators, and the bypass euro. It is characterized in that it comprises a reservoir for adjusting the refrigerant flow rate to store a portion of the refrigerant circulating the second refrigeration cycle provided.

또한, 냉동실과 냉장실을 동시냉각하기 위한 제1냉동사이클의 제1냉매배관과 냉동실을 단독냉각하기 위한 제2냉동사이클의 제2냉매배관을 갖는 냉장고로서, 제2냉매배관은 냉매의 일부를 저장하여 냉매 유량을 조절하는 리저버를 포함하는 것을 특징으로 한다.A refrigerator having a first refrigerant pipe of a first freezing cycle for simultaneously cooling the freezer compartment and a refrigerator compartment and a second refrigerant pipe of a second freezer cycle for solely cooling the freezer compartment, wherein the second refrigerant pipe stores a part of the refrigerant. It characterized in that it comprises a reservoir for adjusting the flow rate of the refrigerant.

또한, 냉장고는 제2냉매배관에 형성된 제2모세관과, 제1냉동사이클과 제2냉동사이클의 작동을 제어하는 밸브를 더 포함하며, 리저버는 밸브와 제2모세관 사이에 설치되는 것을 특징으로 한다.In addition, the refrigerator further includes a second capillary formed in the second refrigerant pipe, and a valve for controlling the operation of the first refrigeration cycle and the second refrigeration cycle, wherein the reservoir is installed between the valve and the second capillary tube. .

또한, 냉장고는 제2냉매배관에 형성된 제2모세관과, 냉동실에 공급되는 냉기를 발생하는 냉동실증발기를 더 포함하며, 리저버는 제2모세관과 냉동실증발기 사이에 설치되는 것을 특징으로 한다.The refrigerator further includes a second capillary tube formed in the second refrigerant pipe and a freezer compartment evaporator for generating cold air supplied to the freezing chamber, and the reservoir is installed between the second capillary tube and the freezer compartment evaporator.

여기서, 리저버는 액체 냉매를 저장하는 원통형의 바디부와, 제2냉매배관에서 바디부로 냉매가 유입되는 유입관과, 바디부로부터 제2냉매배관으로 냉매가 유출되는 유출관을 포함하는 것을 특징으로 한다. 여기서, 리저버는 유입관의 길이가 유출관의 길이보다 길게 형성되는 것을 특징으로 하며, 구체적으로 유입관은 바디부의 하측에 인접하도록 위치하며, 유출관은 바디부의 상측에 인접하도록 형성되는 것을 특징으로 한다.Here, the reservoir includes a cylindrical body portion for storing the liquid refrigerant, an inlet tube through which the refrigerant flows from the second refrigerant pipe to the body portion, and an outlet tube through which the refrigerant flows from the body portion to the second refrigerant pipe. do. Here, the reservoir is characterized in that the length of the inlet pipe is formed longer than the length of the outlet pipe, specifically, the inlet pipe is positioned to be adjacent to the lower side of the body portion, the outlet pipe is characterized in that it is formed adjacent to the upper side of the body portion do.

이상에서 상세하게 설명한 바와 같이, 본 발명에 따른 냉장고는 냉매배관에 리저버를 설치하여, 냉동실의 단독운전에 필요한 냉매의 초과하는 양을 냉동실 단독냉각기간동안 보관하게 함으로써, 냉동실의 냉각성능을 만족하면서도 최소의 전력을 사용하여 효율이 증가된 냉장고를 제공하는 효과가 있다. As described in detail above, the refrigerator according to the present invention is provided with a reservoir in the refrigerant pipe to store the excess amount of the refrigerant required for the independent operation of the freezer compartment during the freezer compartment cooling period, while satisfying the cooling performance of the freezer compartment. There is an effect of providing a refrigerator having increased efficiency using a minimum of power.

이하에서는 첨부도면을 참조하여 본 발명의 바람직한 실시 예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명에 따른 냉장고의 내부에는 냉동실(10)과 냉장실(20)이 설치된다. 냉동실(10)의 배면에는 냉동실(10)의 냉각을 위한 냉동실증발기(11)가 설치되며, 또한 냉장실(20)의 배면에는 냉장실(20)의 냉각을 위한 냉장실증발기(21)와 압축기(100)가 설치된다. 냉동실증발기(11)와 냉장실증발기(21)의 상방에는 증발기(11,21)에 의해 냉각된 냉기를 냉동실(10)과 냉장실(20)에 송풍하기 위한 냉동실팬(12)과 냉장실팬(22)이 설치된다.As shown in FIG. 1, a freezing compartment 10 and a refrigerating compartment 20 are installed in the refrigerator according to the present invention. The freezer compartment evaporator 11 for cooling the freezer compartment 10 is installed on the rear surface of the freezer compartment 10, and the refrigerator compartment evaporator 21 and the compressor 100 for cooling the refrigerator compartment 20 on the back side of the refrigerator compartment 20. Is installed. Above the freezer compartment evaporator 11 and the refrigerator compartment evaporator 21, a freezer compartment fan 12 and a refrigerator compartment fan 22 for blowing cold air cooled by the evaporators 11 and 21 to the freezer compartment 10 and the refrigerating compartment 20. This is installed.

도 2 및 도 3은 본 발명에 따른 냉장고의 냉동사이클을 개략적으로 나타낸 구조도이다. 상기 냉동사이클은 복수의 증발기(11,21)와, 냉매를 압축하기 위한 압축기(100), 압축기(100)로부터 공급된 기상냉매를 응축하는 응축기(200)와, 응축기(200)로부터 공급된 액상냉매를 감압하는 복수의 모세관(41,42)과, 냉장실(20)과 냉동실(10)의 온도에 따라 압축기(100)를 작동하며 복수의 증발기(11,21)로 냉매를 공급하고 냉동실(10)과 냉장실(20)이 소정의 기준온도에 도달할 때 까지 냉동실팬(12)과 냉장실팬(22)을 구동하는 제어부(미도시)를 포함한다. 여기서, 본 발명에 따른 냉장고는 일단이 밸브(30)와 연결되며 타단이 복수의 증발기(11,21) 중 어느 일부의 증발기를 바이패스하여 다른 일부의 증발기의 입구측과 연결되는 바이패스유로를 더 포함한다.2 and 3 is a structural diagram schematically showing a refrigeration cycle of the refrigerator according to the present invention. The refrigeration cycle includes a plurality of evaporators 11 and 21, a compressor 100 for compressing a refrigerant, a condenser 200 for condensing the gaseous refrigerant supplied from the compressor 100, and a liquid phase supplied from the condenser 200. The compressor 100 is operated according to the plurality of capillary tubes 41 and 42 for depressurizing the refrigerant and the temperatures of the refrigerating chamber 20 and the freezing chamber 10, and the refrigerant is supplied to the plurality of evaporators 11 and 21 and the freezing chamber 10 is provided. ) And a control unit (not shown) for driving the freezer compartment fan 12 and the refrigerating compartment fan 22 until the refrigerating compartment 20 reaches a predetermined reference temperature. Here, in the refrigerator according to the present invention, one end is connected to the valve 30 and the other end bypasses an evaporator of any one of the plurality of evaporators 11 and 21 to connect a bypass passage connected to the inlet side of the other evaporator. It includes more.

압축기(100)는 냉장고를 구성하는 응축기(200)등과 같은 구성품들 사이를 순환하며 유동하는 냉매를 압축한다. 여기서, 압축기(100)에는 냉장고를 구성하는 복수의 증발기(11,21)로부터 기화된 기상냉매가 유입되며, 유입된 기상냉매는 압축기(100)의 작동에 의해 고온고압의 기상냉매로 압축된다. 응축기(200)는 압축기(100)로부터 공급된 기상냉매와 응축기(200)의 표면을 통과하는 공기를 열교환시켜, 기상냉매를 저온고압의 액상냉매로 응축한다. 응축기(200)의 양측부 중 어느 하나에는 응축기(200)를 방열하도록 방열팬(미도시)을 마련하는 것이 바람직하다. 응축기(200)에서 응축된 액상냉매는 복수의 모세관(41,42)을 지나면서 감압되어 복수의 증발기(11,21)로 유입된다. 증발기(11,21)는 모세관(41,42)으로부터 공급된 냉매가 기화하면서 주위의 공기를 냉각시키도록 마련된다. 증발기(11,21)는 냉동실(10)에 공급되는 냉기를 발생하는 냉동실증발기(11)와 냉장실(20)에 공급되는 냉기를 발생하는 냉장실증발기(21)를 포함한다. 각 증발기(11,21)는 직렬로 배치되어 있으며, 냉동실증발기(11)는 냉장실증발기(21)에 비해 상대적으로 전열면적이 크도 록 더 큰 용량을 가지고 있다. The compressor 100 compresses the refrigerant flowing through the components such as the condenser 200 constituting the refrigerator. Here, the gaseous refrigerant vaporized from the plurality of evaporators 11 and 21 constituting the refrigerator is introduced into the compressor 100, and the gaseous refrigerant introduced into the compressor 100 is compressed into a gaseous refrigerant having a high temperature and high pressure by the operation of the compressor 100. The condenser 200 heat-exchanges the gaseous refrigerant supplied from the compressor 100 with the air passing through the surface of the condenser 200 to condense the gaseous phase refrigerant into a liquid refrigerant of low temperature and high pressure. It is preferable to provide a heat dissipation fan (not shown) on any one of both sides of the condenser 200 to dissipate the condenser 200. The liquid refrigerant condensed in the condenser 200 is reduced in pressure by passing through the plurality of capillaries 41 and 42 and introduced into the plurality of evaporators 11 and 21. The evaporators 11 and 21 are provided to cool the surrounding air while the refrigerant supplied from the capillaries 41 and 42 vaporizes. The evaporators 11 and 21 include a freezer compartment evaporator 11 for generating cold air supplied to the freezer compartment 10 and a refrigerator compartment evaporator 21 for generating cold air supplied to the refrigerating compartment 20. Each evaporator (11, 21) is arranged in series, the freezer compartment evaporator (11) has a larger heat transfer area than the refrigerator compartment evaporator (21) has a larger capacity.

밸브(30)는 일측은 공급냉매배관(50)과 연결되고, 타측은 냉장실증발기(21)와 냉동실증발기(11)에 연결되는 제1냉매배관(51)과 냉동실증발기(11)에 연결되는 제2냉매배관(52)에 연결되어 있다. 밸브(30)는 냉동실(10)과 냉장실(20)에 마련된 온도감지센서(미도시)가 감지한 신호를 전달받은 제어부(미도시)에 의해 제어된다. The valve 30 is connected to the supply refrigerant pipe 50 on one side, and the other side is connected to the first refrigerant pipe 51 and the freezer evaporator 11 connected to the refrigerator compartment evaporator 21 and the freezer compartment evaporator 11. 2 is connected to the refrigerant pipe (52). The valve 30 is controlled by a controller (not shown) that receives a signal detected by a temperature sensor (not shown) provided in the freezer compartment 10 and the refrigerating compartment 20.

여기서, 본 발명이 적용된 냉동사이클은 냉동실(10)과 냉장실(20)의 동시냉각을 위한 제1냉동사이클과, 냉동실의 단독냉각을 위한 제2냉동사이클을 포함한다. Here, the refrigeration cycle to which the present invention is applied includes a first refrigeration cycle for the simultaneous cooling of the freezer compartment 10 and the refrigerating compartment 20, and a second refrigeration cycle for the sole refrigeration of the freezer compartment.

제1냉동사이클은 냉매를 압축하는 압축기(100)와, 압축기(100)에서 공급된 기상냉매를 응축하는 응축기(200)와, 냉매를 공급하는 밸브(30)와, 응축기(200)로부터 공급된 액상냉매를 감압하는 제1모세관(41)과, 제1모세관(41)으로부터 공급된 액상냉매를 기화시키는 냉동실증발기(11)와 냉장실증발기(21)로 이루어진다. 한편, 제어부(미도시)는 동시냉각모드를 구현하기 위해 밸브(30)의 제1밸브(31)만을 개방하며, 이러한 동시냉각모드에서 응축기(200)의 토출 냉매는 제1모세관(41), 냉장실증발기(21), 냉동실증발기(11)를 통해 순환된다.The first refrigeration cycle includes a compressor 100 for compressing a refrigerant, a condenser 200 for condensing the gaseous refrigerant supplied from the compressor 100, a valve 30 for supplying the refrigerant, and a condenser 200. A first capillary tube 41 for depressurizing the liquid refrigerant, and a freezer compartment evaporator 11 and a refrigerator compartment evaporator 21 for vaporizing the liquid refrigerant supplied from the first capillary tube 41. Meanwhile, the control unit (not shown) opens only the first valve 31 of the valve 30 to implement the simultaneous cooling mode, and the discharge refrigerant of the condenser 200 in the simultaneous cooling mode is the first capillary tube 41, It is circulated through the refrigerator compartment evaporator 21 and the freezer compartment evaporator 11.

제2냉동사이클은 냉장고의 제1냉동사이클의 구성과 유사하게 압축기(100), 응축기(200), 리저버(60), 제2모세관(42), 냉동실증발기(11)를 포함하여 구성된다. 냉동실 단독냉각모드는 제어부(미도시)가 밸브(30)의 제2밸브(32)만을 개방함으로써 구현되며, 이 냉동실 단독냉각모드에서 응축기(200)의 토출되는 냉매는 바이패스유로상에 마련된 리저버(60), 제2모세관(42), 냉동실증발기(11)를 통해 순환되거나 또는 바이패스유로상에 마련된 제2모세관(42), 리저버(60), 냉동실증발기(11)를 통해 순환된다. The second refrigeration cycle includes a compressor 100, a condenser 200, a reservoir 60, a second capillary tube 42, and a freezer compartment evaporator 11 similarly to the configuration of the first refrigeration cycle of the refrigerator. The freezer compartment single cooling mode is implemented by the control unit (not shown) to open only the second valve 32 of the valve 30, and the refrigerant discharged from the condenser 200 in the freezer compartment alone cooling mode is provided in the bypass passage. 60, circulated through the second capillary tube 42, the freezing chamber evaporator 11, or circulated through the second capillary tube 42, the reservoir 60, and the freezing chamber evaporator 11 provided on the bypass flow path.

상술한 바와 같이, 밸브(30)는 제어부(미도시)를 통하여 제1냉동사이클과 제2냉동사이클 가운데 하나를 통해 냉매를 순환시킴으로써 동시냉각모드와 냉동실 단독냉각모드를 구현한다. 밸브(30)는 공급냉매배관(50)에서 공급된 냉매를 제1 및 제2냉매배관(51,52)중 하나로 공급하도록 제1 및 제2냉매배관(51,52)을 각각 개방 또는 폐쇄할 수 있다. 여기서, 제1냉매배관(51)에는 밸브(30)에서 공급된 냉매를 저온저압으로 변환시키도록 마련된 제1모세관(41)과, 제1모세관(41)을 통과한 냉매가 주위 열을 흡수하여 증발되도록 냉장실증발기(21)가 장착된다. 또한, 제2냉매배관(52)는 바이패스유로상에 마련되며, 밸브(30)에서 공급된 냉매를 저온저압으로 변환시키도록 마련된 제2모세관(42)과, 리저버(60)가 장착된다. 리저버(60)는 순환되는 잉여의 액체 냉매를 저장하는 원통형의 바디부(61)와, 제2냉매배관(52)에서 바디부(61)로 냉매가 유입되는 유입관(62)과, 바디부(61)로부터 제2냉매배관(52)으로 냉매가 유출되는 유출관(63)을 포함한다. 또한 리저버(60)는 도 2에 도시된 바와 같이, 밸브(30)와 제2모세관(42)사이에 설치될 수 있다. 상기 리저버(60)의 유입관(62)은 밸브(30)와 연결되고, 유출관(63)은 제2모세관(42)과 연결되도록 구성 된다. 또한, 본 발명의 다른 실시예에 따른 리저버(60)는 도 3에 도시된 바와 같이, 제2모세관(42)과 냉동실증발기(11) 사이에 설치된다. 상기 리저버(60)의 유입관(62)은 제2모세관(42)과 연결되고, 유출관(63)은 냉동실증발기(11)와 연결되도록 구성된다. As described above, the valve 30 implements the simultaneous cooling mode and the freezing chamber alone cooling mode by circulating the refrigerant through one of the first and second refrigeration cycles through a control unit (not shown). The valve 30 may open or close the first and second refrigerant pipes 51 and 52, respectively, to supply the refrigerant supplied from the supply refrigerant pipe 50 to one of the first and second refrigerant pipes 51 and 52. Can be. Here, the first refrigerant pipe 51 and the first capillary tube 41 and the refrigerant passing through the first capillary tube 41 provided to convert the refrigerant supplied from the valve 30 to low temperature low pressure absorbs the surrounding heat The refrigerator compartment evaporator 21 is mounted to evaporate. In addition, the second refrigerant pipe 52 is provided on the bypass flow path, and is equipped with a second capillary tube 42 and a reservoir 60 provided to convert the refrigerant supplied from the valve 30 to low temperature low pressure. The reservoir 60 has a cylindrical body 61 for storing surplus liquid refrigerant circulated, an inlet pipe 62 through which refrigerant flows from the second refrigerant pipe 52 into the body 61, and a body part. And an outflow tube 63 through which the refrigerant flows from the second refrigerant pipe 52 to the second refrigerant pipe 52. In addition, the reservoir 60 may be installed between the valve 30 and the second capillary tube 42, as shown in FIG. The inlet pipe 62 of the reservoir 60 is connected to the valve 30, the outlet pipe 63 is configured to be connected to the second capillary tube (42). In addition, the reservoir 60 according to another embodiment of the present invention is installed between the second capillary tube 42 and the freezer compartment evaporator 11, as shown in FIG. The inlet tube 62 of the reservoir 60 is connected to the second capillary tube 42, and the outlet tube 63 is configured to be connected to the freezer compartment evaporator 11.

도 4는 본 발명에 따른 리저버를 나타낸 사시도이고, 도 5는 이러한 리저버를 나타낸 단면도이다. 도 4 및 도 5에 도시된 바와 같이, 리저버(60)는 유입관(62)의 길이가 유출관(63)의 길이보다 길게 형성되도록 한다. 즉, 냉매가 유입되는 유입관(62)은 바디부(61)의 하측에 인접하도록 위치하며, 냉매가 유출되는 유출관(63)은 바디부(61)의 상측에 인접하도록 형성한다. 상기와 같은 구성에 의해서, 리저버(60)는 냉동실의 단독운전을 위한 최적의 냉매량을 초과하는 양을 저장할 수 있게 된다.Figure 4 is a perspective view showing a reservoir according to the present invention, Figure 5 is a cross-sectional view showing such a reservoir. As shown in FIGS. 4 and 5, the reservoir 60 allows the length of the inlet pipe 62 to be formed longer than the length of the outlet pipe 63. That is, the inflow pipe 62 through which the refrigerant flows is positioned to be adjacent to the lower side of the body portion 61, and the outflow pipe 63 through which the refrigerant flows out is formed to be adjacent to the upper side of the body portion 61. By the configuration as described above, the reservoir 60 can store the amount exceeding the optimum amount of refrigerant for single operation of the freezer compartment.

이러한 구성에 의해, 본 발명에 따른 냉장고의 냉동사이클에서 냉매이동과정을 살펴본다. 우선, 압축기(100)에서 압축된 냉매는 응축기(200)를 통과해 공급냉매배관(50)으로 전달된다. 공급냉매배관(50)으로 전달된 냉매는 밸브(30)를 통해 제1냉매배관(51) 또는 제2냉매배관(52)의 어느 하나로 공급될 수 있다. 밸브(30)가 제어부에 의해 제1밸브(31)만을 개방하는 경우, 밸브(30)를 통과한 냉매는 제1냉매배관(51)을 따라 제1모세관(41)과, 냉장실증발기(21)와 냉장실증발기(21)를 순차적으로 통과하여 압축기(100)로 유입된다. 이 경우 밸브(30)를 통과한 냉매가 냉장실 증발기(21)와 냉동실증발기(11)를 직렬로 통과하게 된다. By this configuration, looks at the refrigerant movement process in the refrigeration cycle of the refrigerator according to the present invention. First, the refrigerant compressed by the compressor 100 passes through the condenser 200 and is delivered to the supply refrigerant pipe 50. The refrigerant delivered to the supply refrigerant pipe 50 may be supplied to either the first refrigerant pipe 51 or the second refrigerant pipe 52 through the valve 30. When the valve 30 opens only the first valve 31 by the control unit, the refrigerant passing through the valve 30 passes through the first capillary tube 41 and the refrigerating chamber evaporator 21 along the first refrigerant pipe 51. And passes through the refrigerator compartment evaporator 21 sequentially enters the compressor (100). In this case, the refrigerant passing through the valve 30 passes through the refrigerator compartment evaporator 21 and the freezer compartment evaporator 11 in series.

그리고, 밸브(30)가 제어부(미도시)에 의해 제2밸브(32)만을 개방하는 경우, 밸브(30)를 통과한 냉매는 바이패스유로에 형성된 제2냉매배관(52)을 따라 리저버(60), 제2모세관(42), 냉동실증발기(11)를 순차적으로 통과하여 압축기(100)로 유입되거나(도 2참조), 또는 제1냉매배관(51)을 따라 제2모세관(42), 리저버(60), 냉동실증발기(11)를 순차적으로 통과하여 압축기(100)로 유입된다.(도 3참조) 여기서 최적 냉매량을 초과하는 양은 리저버(60)에 저장된 상태이기 때문에, 순환되는 냉매의 밀도는 낮아지게 된다. 따라서, 냉동실(10)의 단독운전에 필요한 냉매의 초과양이 리저버(60)에 보관되어 작은 냉동부하에 맞도록 적은 냉매량의 순환 조절이 가능하도록 하며 냉동실(10)의 냉각성능을 만족하면서도 최소의 전력을 사용할 수 있다. 한편, 제어부(미도시)에 의해 냉동실 단독냉각모드에서 냉동실(10)과 냉장실(20)의 동시냉각모드로 전환되는 경우에는 리저버(60)의 액체냉매는 압력이 감소하여 증발하게 되므로 냉동실(10)과 냉장실(20)의 동시냉각을 위한 제1냉각사이클을 따라 순환할 수 있게 된다.When the valve 30 opens only the second valve 32 by a controller (not shown), the refrigerant passing through the valve 30 passes along the second refrigerant pipe 52 formed in the bypass passage. 60), the second capillary tube 42 and the freezer compartment evaporator 11 sequentially pass through the compressor 100 (see FIG. 2), or the second capillary tube 42 along the first refrigerant pipe 51. It passes through the reservoir 60 and the freezer compartment evaporator 11 sequentially and enters the compressor 100. (See FIG. 3) Since the amount exceeding the optimum amount of refrigerant is stored in the reservoir 60, the density of the refrigerant circulated. Will be lowered. Therefore, the excess amount of the refrigerant required for the independent operation of the freezer compartment 10 is stored in the reservoir 60 to enable the circulation control of a small amount of refrigerant to meet the small freezer load, while satisfying the cooling performance of the freezer compartment 10, Power can be used. On the other hand, when the control unit (not shown) is switched to the simultaneous cooling mode of the freezer compartment 10 and the refrigerating compartment 20 in the freezer compartment alone cooling mode, the liquid refrigerant of the reservoir 60 is reduced in pressure to evaporate the freezer compartment 10 ) Can be circulated along the first cooling cycle for simultaneous cooling of the refrigerating chamber 20.

도 1은 본 발명에 따른 냉장고를 나타낸 사시도이다.1 is a perspective view showing a refrigerator according to the present invention.

도 2는 본 발명의 일 실시예에 따른 냉각사이클의 구성도이다.2 is a block diagram of a cooling cycle according to an embodiment of the present invention.

도 3은 본 발명의 다른 실시예에 따른 냉각사이클의 구성도이다.3 is a configuration diagram of a cooling cycle according to another embodiment of the present invention.

도 4는 본 발명의 리시버를 나타낸 사시도이다.4 is a perspective view showing the receiver of the present invention.

도 5는 본 발명의 리시버를 나타낸 단면도이다. 5 is a cross-sectional view showing the receiver of the present invention.

<도면의 주요부분에 대한 부호 설명> <Description of Signs of Major Parts of Drawings>

10...냉동실 11...냉동실 증발기10 ... Freezer 11 ... Freezer Evaporator

20...냉장실 21...냉장실 증발기20 ... fridge 21 ... fridge evaporator

30...밸브 41,42...모세관30 ... valve 41,42 ... capillary

50..공급냉매배관 51...제1냉매배관50. Supply refrigerant piping 51 ... First refrigerant piping

52...제2냉매배관 60...리저버52.2nd refrigerant piping 60 ... reservoir

100...압축기 200...응축기100 ... compressor 200 ... condenser

Claims (7)

냉장실 및 냉동실과, Refrigerator and freezer, 상기 냉장실과 상기 냉동실에 대응하는 제1,2증발기를 구비하는 냉동사이클을 포함하는 냉장고에 있어서,A refrigerator comprising a refrigerating cycle having first and second evaporators corresponding to the refrigerating compartment and the freezing compartment, 상기 냉동사이클은 상기 제1,2증발기를 동시에 냉각하기 위한 제1냉동사이클과, 상기 제1,2증발기 중 어느 하나를 단독냉각하기 위한 제2냉동사이클을 포함하고,The refrigeration cycle includes a first refrigeration cycle for simultaneously cooling the first and second evaporators, and a second refrigeration cycle for solely cooling any one of the first and second evaporators, 상기 제2냉동사이클은 상기 제1,2증발기 중 다른 하나를 바이패스하는 바이패스유로와, 상기 바이패스유로에 마련되어 상기 제2냉동사이클을 순환하는 냉매의 일부를 저장하여 냉매유량을 조절하는 리저버를 포함하는 것을 특징으로 하는 냉장고.The second refrigeration cycle is a bypass passage for bypassing the other of the first and second evaporators and a reservoir provided in the bypass passage to store a portion of the refrigerant circulating the second refrigeration cycle to adjust the refrigerant flow rate. Refrigerator comprising a. 냉동실과 냉장실을 동시냉각하기 위한 제1냉동사이클의 제1냉매배관과, 냉동실을 단독냉각하기 위한 제2냉동사이클의 제2냉매배관을 갖는 냉장고에 있어서, A refrigerator having a first refrigerant pipe of a first refrigeration cycle for simultaneously cooling a freezer compartment and a refrigerator compartment, and a second refrigerant pipe of a second refrigeration cycle for solely cooling a freezer compartment, 상기 제2냉매배관은 냉매의 일부를 저장하여 냉매유량을 조절하는 리저버를 포함하는 것을 특징으로 하는 냉장고.The second refrigerant pipe comprises a reservoir for storing a portion of the refrigerant to control the refrigerant flow rate. 제2항에 있어서,The method of claim 2, 상기 냉장고는 상기 제2냉매배관에 마련된 모세관과, 상기 제1냉동사이클과 제2냉동사이클의 작동을 제어하는 밸브를 더 포함하며,The refrigerator further includes a capillary tube provided in the second refrigerant pipe, and a valve controlling the operation of the first refrigeration cycle and the second refrigeration cycle. 상기 리저버는 상기 밸브와 상기 모세관 사이에 설치되는 것을 특징으로 하는 냉장고.And the reservoir is installed between the valve and the capillary tube. 제2항에 있어서,The method of claim 2, 상기 냉장고는 상기 제2냉매배관에 마련된 모세관과, 상기 냉동실에 공급되는 냉기를 발생하는 냉동실증발기를 더 포함하며,The refrigerator further includes a capillary tube provided in the second refrigerant pipe and a freezer compartment evaporator for generating cold air supplied to the freezing chamber. 상기 리저버는 상기 모세관과 상기 냉동실증발기 사이에 설치되는 것을 특징으로 하는 냉장고.And the reservoir is installed between the capillary tube and the freezer compartment evaporator. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4, 상기 리저버는 순환하는 액체 냉매를 저장하는 원통형의 바디부와, 상기 제2냉매배관에서 상기 바디부로 냉매가 유입되는 유입관과, 상기 바디부로부터 상기 제2냉매배관으로 냉매가 유출되는 유출관을 포함하는 것을 특징으로 하는 냉장고. The reservoir includes a cylindrical body portion for storing a circulating liquid refrigerant, an inlet pipe through which refrigerant flows from the second refrigerant pipe to the body portion, and an outlet pipe through which refrigerant flows from the body portion to the second refrigerant pipe. Refrigerator comprising a. 제5항에 있어서,The method of claim 5, 상기 리저버는 상기 유입관의 길이가 상기 유출관의 길이보다 길게 형성되는 것을 특징으로 하는 냉장고.The reservoir is characterized in that the length of the inlet pipe is formed longer than the length of the outlet pipe. 제6항에 있어서,The method of claim 6, 상기 유입관은 상기 바디부의 하측에 인접하도록 위치하며, 상기 유출관은 상기 바디부의 상측에 인접하도록 형성되는 것을 특징으로 하는 냉장고.The inlet pipe is located so as to be adjacent to the lower side of the body portion, the outlet pipe is characterized in that formed adjacent to the upper side of the body portion.
KR1020080037374A 2008-04-22 2008-04-22 Refrigerator KR20090111663A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200106868A (en) * 2013-11-04 2020-09-15 엘지전자 주식회사 A refrigerator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5445569B2 (en) * 2011-12-09 2014-03-19 株式会社デンソー Air conditioner for vehicles
US20130186129A1 (en) * 2012-01-25 2013-07-25 Lg Electronics Inc. Refrigerator
JP6987988B2 (en) * 2018-05-28 2022-01-05 キヤノンセミコンダクターエクィップメント株式会社 Cooling device, exposure device with cooling device, industrial equipment with cooling device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340404A (en) * 1979-10-01 1982-07-20 Tokyo Shibaura Denki Kabushiki Kaisha Refrigerating apparatus
JPS59164860A (en) * 1983-03-09 1984-09-18 株式会社東芝 Refrigeration cycle of refrigerator
JPH0317478A (en) * 1989-06-14 1991-01-25 Nippondenso Co Ltd Refrigerating cycle apparatus
JP3334222B2 (en) * 1992-11-20 2002-10-15 ダイキン工業株式会社 Air conditioner
JP3456905B2 (en) * 1998-09-18 2003-10-14 株式会社東芝 refrigerator
JP4180786B2 (en) * 2000-08-11 2008-11-12 株式会社鷺宮製作所 Electric switching valve and refrigeration cycle apparatus for refrigeration / refrigerator
JP3630632B2 (en) * 2000-12-12 2005-03-16 株式会社東芝 refrigerator
KR20040020618A (en) * 2002-08-31 2004-03-09 삼성전자주식회사 Refrigerator
US6931870B2 (en) * 2002-12-04 2005-08-23 Samsung Electronics Co., Ltd. Time division multi-cycle type cooling apparatus and method for controlling the same
KR20050038293A (en) * 2003-10-21 2005-04-27 엘지전자 주식회사 A valve control method of refrigerator
US7331189B2 (en) * 2004-11-24 2008-02-19 Hoshizaki Denki Kabushiki Kaisha Cooling device
KR100712483B1 (en) * 2005-09-16 2007-04-30 삼성전자주식회사 Refrigerator and operation control method therof
KR100726456B1 (en) * 2005-09-24 2007-06-11 삼성전자주식회사 Refrigerator
KR100687934B1 (en) * 2005-09-28 2007-02-27 삼성전자주식회사 Refrigerator and controlling method for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200106868A (en) * 2013-11-04 2020-09-15 엘지전자 주식회사 A refrigerator

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