KR100549062B1 - Refrigerator - Google Patents

Refrigerator Download PDF

Info

Publication number
KR100549062B1
KR100549062B1 KR1019980013503A KR19980013503A KR100549062B1 KR 100549062 B1 KR100549062 B1 KR 100549062B1 KR 1019980013503 A KR1019980013503 A KR 1019980013503A KR 19980013503 A KR19980013503 A KR 19980013503A KR 100549062 B1 KR100549062 B1 KR 100549062B1
Authority
KR
South Korea
Prior art keywords
evaporator
refrigerant
compressor
condenser
pipe
Prior art date
Application number
KR1019980013503A
Other languages
Korean (ko)
Other versions
KR19990080338A (en
Inventor
박용종
박석행
배학균
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1019980013503A priority Critical patent/KR100549062B1/en
Publication of KR19990080338A publication Critical patent/KR19990080338A/en
Application granted granted Critical
Publication of KR100549062B1 publication Critical patent/KR100549062B1/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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel

Abstract

본 발명은, 냉매압축용 압축기와, 상기 압축기로부터의 냉매를 응축시키는 응축기를 갖는 냉장고에 관한 것으로서, 상기 응축기의 유출구측로부터 분지되어 상기 응축기의 유입구측에서 합류되는 제1증발기배관 및 제2증발기배관과; 상기 제1증발기배관상에 설치되어 상기 응축기로부터의 냉매를 팽창시키는 제1모세관과; 상기 제1증발기배관상에 설치되어 상기 제1모세관으로부터 전달되는 냉매가 증발되는 제1증발기와; 상기 제2증발기배관상에 설치되어 상기 응축기로부터의 냉매를 팽창시키는 제2모세관과; 상기 제2증발기배관상에 설치되어 상기 제2모세관으로부터전달되는 냉매가 증발되는 제2증발기와; 상기 제1증발기배관과 상기 제2증발기배관중 어느 하나의 일측과 상기 압축기의 유입구측 사이에 설치되어 상기 제1증발기 및 상기 제2증발기로부터 상기 압축기로 유출되는 냉매의 압력을 균등하게 조절하는 압력조절수단을 포함하는 것을 특징으로 한다. 이에 의해, 전체적인 냉각효율을 향상시키며, 전력소모를 감소시킬 수 있는 냉장고에 관한 것이다. The present invention relates to a refrigerator having a refrigerant compressor and a condenser for condensing refrigerant from the compressor, wherein the first evaporator pipe and the second evaporator branched from an outlet side of the condenser and joined at an inlet side of the condenser. Piping; A first capillary tube installed on the first evaporator pipe to expand the refrigerant from the condenser; A first evaporator installed on the first evaporator pipe and configured to evaporate the refrigerant delivered from the first capillary; A second capillary tube installed on the second evaporator pipe to expand the refrigerant from the condenser; A second evaporator installed on the second evaporator pipe and configured to evaporate the refrigerant transferred from the second capillary; A pressure is provided between one side of the first evaporator pipe and the second evaporator pipe and the inlet side of the compressor to equally regulate the pressure of the refrigerant flowing out of the first evaporator and the second evaporator to the compressor. Characterized in that it comprises a control means. Thereby, the present invention relates to a refrigerator capable of improving the overall cooling efficiency and reducing power consumption.

Description

냉장고{refrigerator}Refrigerator {refrigerator}

본 발명은 냉장고에 관한 것으로서, 특히, 냉장실증발기 로 유입되는 냉매의 온도와 냉장실온도 차이를 감소시켜 냉각효율을 향상시킬 수 있도록 한 냉장고에 관한 것이다. The present invention relates to a refrigerator, and more particularly, to a refrigerator capable of improving cooling efficiency by reducing a difference between a temperature of a refrigerant flowing into a refrigerator compartment evaporator and a refrigerator compartment temperature.

냉동실 및 냉장실에 각각 증발기를 설치하여 냉각하는 독립냉각방식의 냉장고에 응용되는 냉동시스템은, 도 2에 도시한 바와 같이, 냉매를 고온고압으로 압축하는 압축기(compressor)(51)와, 압축기(51)로부터의 냉매를 응축시키는 응축기(52)와, 응축기(52)로부터의 액상냉매를 저온저압상태로 팽창시키는 모세관(53)을 포함하며, 모세관(53)의 출구에는 냉매를 증발시키는 냉장실증발기(55b)와 냉동실증발기(55a)가 순차적으로 연결되어 있다.As shown in FIG. 2, a refrigeration system, which is applied to an independent cooling type refrigerator that cools by installing an evaporator in a freezer compartment and a refrigerating compartment, includes a compressor 51 for compressing a refrigerant at a high temperature and high pressure, and a compressor 51. A condenser 52 for condensing the refrigerant from the condenser, and a capillary tube 53 for expanding the liquid refrigerant from the condenser 52 to a low temperature and low pressure state, and a refrigerating chamber evaporator for evaporating the refrigerant at the outlet of the capillary tube 53. 55b) and the freezer evaporator 55a are sequentially connected.

이러한 냉동시스템의 압축기(51)가 구동하면, 압축된 냉매는 응축기(52)에서 응축된 다음, 모세관(53)을 통과하며 팽창된다. 팽창된 냉매는 냉장실증발기(55b)로 유입되어 냉장실내의 공기와 열교환되어 냉장실의 온도를 저하시키게 되며, 냉장실증발기(55b)로부터의 냉매는 냉동실증발기(55a)로 유입되어 냉동실내의 공기와 열교환하여 냉동실의 온도를 저하시키게 된다.When the compressor 51 of this refrigeration system is driven, the compressed refrigerant is condensed in the condenser 52 and then expanded through the capillary tube 53. The expanded refrigerant is introduced into the refrigerator compartment evaporator 55b to exchange heat with air in the refrigerator compartment to lower the temperature of the refrigerator compartment. The refrigerant from the refrigerator compartment evaporator 55b is introduced into the freezer compartment evaporator 55a to exchange heat with air in the freezer compartment. It lowers the temperature of the freezer compartment.

종래의 냉동시스템에서는 단일의 모세관(53)에서 팽창한 냉매가 냉장실증발기(55b)와 냉동실증발기(55a)를 순차적으로 이동하여 냉장실과 냉동실을 냉각시켜야 하므로, 냉장실보다 온도가 낮은 냉동실의 온도, 약 -20℃를 기준으로 모세관(53)을 통과한 냉매의 온도를 설정하게 된다. 이에 따라, 모세관(53)을 통과하여 냉장실증발기(55b) 및 냉동실증발기(55a)로 유입되는 냉매의 온도는 냉동실온도보다 소정 낮은 약 -30℃ 정도로 설정된다.In the conventional refrigeration system, the refrigerant expanded in a single capillary tube 53 must move the refrigerating chamber evaporator 55b and the freezing chamber evaporator 55a sequentially to cool the refrigerating compartment and the freezing compartment. The temperature of the refrigerant passing through the capillary tube 53 is set based on -20 ° C. Accordingly, the temperature of the refrigerant flowing through the capillary tube 53 into the refrigerator compartment evaporator 55b and the freezer compartment evaporator 55a is set to about -30 ° C. lower than the freezer compartment temperature.

그런데, 냉장실증발기(55b)를 따라 유동하는 -30℃ 정도로 하강한 냉매와 열교환하는 냉장실내의 온도는 통상적으로 0℃~5℃ 정도로 유지되도록 설정되어 있다. 따라서, 냉장실증발기(55b)를 따라 유동하는 냉매와 냉장실 공기가 열교환하는 과정에서 냉장실의 설정온도보다 냉장실증발기(55b)내의 냉매온도가 과도히 낮으므로 냉장실내의 습기가 냉장실증발기(55b)의 외표면에 응결되어 발생하는 성에가 과도하게 생성된다. 따라서, 성에의 제거를 위한 제상운전을 자주 해주거나 장시간 해주어야 하므로, 전력소모가 크고 전체적인 냉동시스템의 효율이 저하된다는 문제점이 있다. 또한, 모세관(53)에서 팽창된 냉매가 냉장실증발기(55b)내에서 일부 증발된 다음 냉동실증발기(55a)로 유입됨에 따라, 냉장실증발기(55b)내에서 열교환이 활발히 이루어져 비교적 많은 양의 냉매가 냉장실증발기(55b)내에서 증발할 경우, 냉동실증발기(55a)로 유입되어 증발되는 냉매의 양이 작아져 냉동실의 냉동효율이 저하된다는 문제점이 있다.By the way, the temperature in the refrigerator compartment which heat-exchanges with the refrigerant | coolant which fell about -30 degreeC which flows along the refrigerator compartment evaporator 55b is set so that it may be normally maintained at about 0 degreeC-5 degreeC. Therefore, the refrigerant temperature in the refrigerator compartment evaporator 55b is excessively lower than the set temperature of the refrigerator compartment during the heat exchange between the refrigerant flowing along the refrigerator compartment evaporator 55b and the refrigerator compartment air, so that the moisture in the refrigerator compartment is outside the refrigerator compartment evaporator 55b. Excessive frost generated by condensation on the surface is produced. Therefore, the defrosting operation to remove the frost frequently or for a long time, the power consumption is large, there is a problem that the efficiency of the overall refrigeration system is lowered. In addition, as the refrigerant expanded in the capillary tube 53 partially evaporates in the refrigerator compartment evaporator 55b and then flows into the freezer compartment evaporator 55a, heat exchange is actively performed in the refrigerator compartment evaporator 55b, so that a relatively large amount of refrigerant is stored in the refrigerator compartment. When evaporating in the evaporator 55b, there is a problem that the amount of refrigerant evaporated into the freezing chamber evaporator 55a is reduced and the freezing efficiency of the freezing chamber is lowered.

따라서 본 발명의 목적은, 냉장실 및 냉동실의 냉각효율을 향상시키며, 전력소모를 감소시킬 수 있는 냉장고를 제공하는 것이다.Accordingly, an object of the present invention is to provide a refrigerator which can improve the cooling efficiency of the refrigerating compartment and the freezing compartment and reduce the power consumption.

상기 목적은, 본 발명에 따라, 냉매압축용 압축기와, 상기 압축기로부터의 냉매를 응축시키는 응축기를 갖는 냉장고에 있어서, 상기 응축기의 유출구측로부터 분지되어 상기 압축기의 유입구측에서 합류되는 제1증발기배관 및 제2증발기배관과; 상기 제1증발기배관상에 설치되어 상기 응축기로부터의 냉매를 팽창시키는 제1모세관과; 상기 제1증발기배관상에 설치되어 상기 제1모세관으로부터 전달되는 냉매가 증발되는 제1증발기와; 상기 제2증발기배관상에 설치되어 상기 응축기로부터의 냉매를 팽창시키는 제2모세관과; 상기 제2증발기배관상에 설치되어 상기 제2모세관으로부터 전달되는 냉매가 증발되는 제2증발기와; 상기 제1증발기배관과 상기 제2증발기배관 중 어느 하나의 일측과 상기 압축기의 유입구측 사이에 설치되어 상기 제1증발기 및 상기 제2증발기로부터 상기 압축기로 유출되는 냉매의 압력을 균등하게 조절하는 압력조절수단을 포함하는 것을 특징으로 하는 냉장고에 의해 달성된다.According to the present invention, in the refrigerator having a refrigerant compression compressor and a condenser for condensing the refrigerant from the compressor, the first evaporator pipe branched from the outlet side of the condenser and joined at the inlet side of the compressor And a second evaporator pipe; A first capillary tube installed on the first evaporator pipe to expand the refrigerant from the condenser; A first evaporator installed on the first evaporator pipe and configured to evaporate the refrigerant delivered from the first capillary; A second capillary tube installed on the second evaporator pipe to expand the refrigerant from the condenser; A second evaporator installed on the second evaporator pipe and configured to evaporate a refrigerant delivered from the second capillary; A pressure installed between one side of the first evaporator pipe and the second evaporator pipe and an inlet side of the compressor to equally regulate the pressure of the refrigerant flowing out of the first evaporator and the second evaporator to the compressor It is achieved by a refrigerator, characterized in that it comprises an adjusting means.

여기서, 상기 제2모세관을 통과한 냉매의 압력은 상기 제1모세관을 통과한 냉매의 압력보다 소정 높으며, 상기 압력조절수단은 상기 제2증발기의 출구측에 연결되어 상기 제2증발기로부터의 냉매를 감압시키는 것이 바람직하다.Here, the pressure of the refrigerant passing through the second capillary tube is higher than the pressure of the refrigerant passing through the first capillary tube, and the pressure adjusting means is connected to the outlet side of the second evaporator to supply the refrigerant from the second evaporator. It is preferable to reduce the pressure.

그리고, 상기 압력조절수단은 모세관 및 압력조절밸부 중 적어도 하나를 사용할 수 있다.The pressure regulating means may use at least one of a capillary tube and a pressure regulating valve portion.

이하, 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

도 1은 본 발명에 따른 냉동시스템의 개략적 구성도로서, 본 발명에 따른 냉동시스템은, 냉매를 고온고압으로 압축하는 압축기(1)와, 압축기(1)로부터의 냉매를 응축시키는 응축기(2)를 포함한다. 그리고, 응축기(2)의 출구측에는 응축기유출배관(7)이 연결되어 있고, 응축기유출배관(7)은 한쌍으로 분지된 제1 및 제2증발기유입배관(11a,11b)에 연결되어 있다.1 is a schematic configuration diagram of a refrigeration system according to the present invention, wherein the refrigeration system according to the present invention includes a compressor (1) for compressing a refrigerant at high temperature and high pressure, and a condenser (2) for condensing the refrigerant from the compressor (1). It includes. The condenser outlet pipe 7 is connected to the outlet side of the condenser 2, and the condenser outlet pipe 7 is connected to the first and second evaporator inlet pipes 11a and 11b branched in pairs.

제1증발기유입배관(11a)상에는 제1증발기인 냉동실증발기(5a)가 설치되어 있으며, 냉동실증발기(5a)의 전방에는 냉동실증발기(5a)로 유입되는 냉매를 팽창시키는 냉동실모세관(3a)이 형성되어 있다. 그리고, 제2증발기유입배관(11b)상에는 제2증발기인 냉장실증발기(5b)가 설치되어 있으며, 냉장실증발기(5b)의 전방에는 냉장실증발기(5b)로 유입되는 냉매를 팽창시키는 냉장실모세관(3b)이 형성되어 있다. 여기서, 냉장실증발기(5b)는 냉동실증발기(5a)보다 소정 용량이 작게 형성되며, 이에 따라, 냉장실모세관(3b)도 냉동실모세관(3a)보다 냉매의 팽창율이 적도록 관의 길이나 직경이 설정되어 있다.On the first evaporator inlet pipe (11a), a freezer compartment evaporator (5a), which is a first evaporator, is installed, and a freezer compartment capillary tube (3a) is formed in front of the freezer compartment evaporator (5a) to expand the refrigerant flowing into the freezer compartment evaporator (5a). It is. And, on the second evaporator inlet pipe (11b) is provided a refrigerator evaporator (5b), which is a second evaporator, and in front of the refrigerator evaporator (5b) the refrigerator compartment capillary tube (3b) for expanding the refrigerant flowing into the refrigerator compartment evaporator (5b). Is formed. Here, the refrigerator compartment evaporator 5b has a predetermined capacity smaller than that of the freezer compartment evaporator 5a. Accordingly, the length and diameter of the refrigerator compartment evaporator 5b are set so that the expansion rate of the refrigerant is smaller than that of the refrigerator compartment capillary tube 3a. have.

한편, 냉동실증발기(5a)의 유출구측에는 제1증발기유출배관(15a)이 연결되어 있고, 냉장실증발기(5b)의 유출구측에는 제2증발기유출배관(15b)이 연결되어 있다. 제2증발기유출배관(15b)상에는 냉동실증발기(5a)에서 증발된 냉매의 압력과 냉장실증발기(5b)에서 증발된 냉매의 압력이 등압을 이루도록 압력조절수단이 마련되어 있다. 압력조절수단은 압력조절용 모세관(10) 또는 압력조절밸브를 사용할 수 있다. 제1증발기유출배관(15a)과 제2증발기유출배관(15b)은 압축기(1)의 유입구측으로부터 연장된 압축기유입배관(13)에 연결된다.On the other hand, the first evaporator outlet pipe 15a is connected to the outlet side of the freezer compartment evaporator 5a, and the second evaporator outlet pipe 15b is connected to the outlet side of the refrigerator compartment evaporator 5b. On the second evaporator outlet pipe 15b, a pressure regulating means is provided such that the pressure of the refrigerant evaporated in the freezer compartment evaporator 5a and the pressure of the refrigerant evaporated in the refrigerator compartment evaporator 5b are equalized. The pressure regulating means may use a pressure regulating capillary 10 or a pressure regulating valve. The first evaporator outlet pipe 15a and the second evaporator outlet pipe 15b are connected to the compressor inlet pipe 13 extending from the inlet side of the compressor 1.

이러한 구성에 의한 냉동시스템은, 압축기(1)의 구동에 의해 냉매의 순환이 이루어지며, 압축기(1)가 구동하면 냉매가 고온고압으로 압축된다. 압축된 냉매는 응축기(2)로 유입되어 응축되며, 응축된 냉매는 응축기유출배관(7)을 따라 유동하여 제1증발기유입배관(11a)과 제2증발기유입배관(11b)으로 유입된다. 제1증발기유입배관(11a)으로 유입된 냉매는 냉동실모세관(3a)에서 팽창하여 냉동실증발기(5a)로 유입되어 냉동실의 공기와 열교환하게 된다. 이 때, 냉동실모세관(3a)에서 팽창하여 냉동실증발기(5a)로 유입된 냉매의 온도는 -30℃정도이고, 냉매는 냉동실의 공기와 열교환하여 통상적으로 -20℃정도로 설정되는 냉동실의 고내온도를 적절하게 유지하게 된다.In the refrigeration system having such a configuration, the refrigerant is circulated by the drive of the compressor 1, and when the compressor 1 is driven, the refrigerant is compressed to high temperature and high pressure. The compressed refrigerant flows into the condenser 2 to condense, and the condensed refrigerant flows along the condenser outlet pipe 7 and flows into the first evaporator inlet pipe 11a and the second evaporator inlet pipe 11b. The refrigerant introduced into the first evaporator inlet pipe 11a expands in the freezer compartment capillary 3a and enters the freezer compartment evaporator 5a to exchange heat with air in the freezer compartment. At this time, the temperature of the refrigerant expanded in the freezer compartment capillary 3a and introduced into the freezer compartment evaporator 5a is about -30 ° C, and the refrigerant is heat exchanged with the air in the freezer compartment to set the internal temperature of the freezer compartment, which is usually set at about -20 ° C. Will remain appropriate.

한편, 제2증발기유입배관(11b)으로 유입된 냉매는 냉장실모세관(3b)에서 팽창하여 냉장실증발기(5b)로 유입된다. 냉장실증발기(5b)로 유입된 냉매는 냉동실증발기(5a)로 유입되는 냉매의 온도보다 소정 고온, 예를 들면, -10℃~-20℃ 정도이며, 냉장실의 공기는 이 냉매와 열교환하여 통상적인 냉장실의 고내온도인 0℃ ~ 5℃를 유지하게 된다.On the other hand, the refrigerant introduced into the second evaporator inlet pipe (11b) is expanded in the refrigerator compartment capillary (3b) is introduced into the refrigerator compartment evaporator (5b). The refrigerant introduced into the refrigerator compartment evaporator 5b has a predetermined temperature higher than the temperature of the refrigerant introduced into the freezer compartment evaporator 5a, for example, about -10 ° C to -20 ° C, and the air in the refrigerator compartment exchanges heat with the refrigerant. It maintains the internal temperature of the refrigerator compartment 0 ℃ ~ 5 ℃.

이와 같이, 냉장실모세관(3b)을 통과한 냉매는 -10℃~-20℃ 정도로 냉각되고, 냉동실모세관(3a)을 통과한 냉매는 -30℃정도로 냉각됨에 따라, 냉장실모세관(3b)은 냉장실과 냉동실의 온도차를 구현하기 위해 냉동실모세관(3a)보다 관의 길이가 짧거나 관의 직경이 크게 형성되며, 이에 따라, 냉장실모세관(3b)을 통과한 냉매의 압력은 냉동실모세관(3a)을 통과한 냉매의 압력보다 소정 고압을 형성한다.In this way, the refrigerant passing through the refrigerator compartment capillary tube 3b is cooled to about -10 ° C to -20 ° C, and the refrigerant passing through the freezer chamber capillary tube 3a is cooled to about -30 ° C, so that the refrigerator compartment capillary tube 3b is connected to the refrigerator compartment. In order to realize the temperature difference of the freezer compartment, the length of the tube is shorter or the diameter of the tube is formed larger than that of the freezer compartment capillary tube 3a. Accordingly, the pressure of the refrigerant passing through the freezer compartment capillary tube 3b passes through the freezer compartment capillary tube 3a. The predetermined pressure is higher than the pressure of the refrigerant.

이렇게 서로 압력이 다른 냉장실모세관(3b)으로부터의 냉매와 냉동실모세관(3a)으로부터의 냉매가 압축기유입배관(13)에서 합류될 경우, 압력이 낮은 제2증발기유출배관(15b)측으로 냉매가 역류하거나, 제2증발기유출배관(15b)으로부터 냉매의 유출이 원할하지 못하여 냉각효율에 심각한 이상이 발생한다. 이를 방지하기 위해, 냉장실증발기(5b)로부터 유출된 냉매의 압력이 제1증발기유출배관(15a)을 유동하는 냉매의 압력과 등압을 이루도록 제2증발기유출배관(15b)상에는 압력조절용 모세관(10)이 형성되어 있다. 압력조절용 모세관(10)을 통과한 제2증발기유출배관(15b)상의 냉매는 제1증발기유출배관(15a)을 유동하는 냉매와 등압을 이루게 되며, 냉장실증발기(5b)를 통과한 냉매와 냉동실증발기(5a)를 통과한 냉매는 압축기유입배관(13)에서 합류되어 압축기(1)로 유입되게 된다.When the refrigerant from the refrigerating chamber capillary tube 3b having different pressures and the refrigerant from the freezing chamber capillary tube 3a merge in the compressor inlet pipe 13, the refrigerant flows back toward the second evaporator outlet pipe 15b having a low pressure. In this case, the outflow of the refrigerant from the second evaporator outlet pipe 15b is not desired, which causes serious abnormalities in the cooling efficiency. In order to prevent this, the pressure control capillary 10 is formed on the second evaporator outlet pipe 15b such that the pressure of the refrigerant flowing out of the refrigerator compartment evaporator 5b is equal to the pressure of the refrigerant flowing through the first evaporator outlet pipe 15a. Is formed. The refrigerant on the second evaporator outlet pipe 15b passing through the pressure regulating capillary 10 is equal to the refrigerant flowing through the first evaporator outlet pipe 15a, and the refrigerant passing through the refrigerator compartment evaporator 5b and the freezer compartment evaporator. The refrigerant passing through 5a is joined in the compressor inlet pipe 13 and flows into the compressor 1.

이상에서 살펴본 바와 같이, 냉동실증발기(5a)와 냉장실증발기(5b)를 병렬연결하고, 냉동실증발기(5a)로 유입되는 냉매를 팽창시키는 냉동실모세관(3a)과, 냉장실증발기(5b)로 유입되는 냉매를 팽창시키는 냉장실모세관(3b)을 형성함으로써, 냉동실 적정온도와 냉장실 적정온도에 인접한 온도로 냉매를 냉각시킬 수 있게 된다. 따라서, 냉장실증발기(5b)내에서 유동되는 냉매와 냉장실 고내의 온도차가 적어짐으로써, 냉장실증발기(5b)의 외표면에 성에가 비교적 적게 발생한다. 이에 따라, 제상운전 시간이나 제상운전 횟수를 감소시킬 수 있으므로, 전력소모가 감소되며 냉장실의 냉장효율이 향상된다. 또한, 냉동실모세관(3a)에서 팽창한 냉매가 냉동실증발기(5a)로만 유입되므로, 종래와 같이 냉매가 냉장실증발기(5b)를 통과하는 도중 온도가 상승하는 것을 방지할 수 있다. 따라서, 냉동실의 냉동효율을 향상시킬 수 있다. As described above, the freezer compartment evaporator 5a and the refrigerator compartment evaporator 5b are connected in parallel, and the freezer compartment capillary 3a for expanding the refrigerant flowing into the freezer compartment evaporator 5a and the refrigerant introduced into the refrigerator compartment evaporator 5b. By forming the refrigerating chamber capillary tube 3b which expands, the refrigerant can be cooled to a temperature adjacent to the freezing chamber proper temperature and the refrigerating chamber proper temperature. Therefore, the temperature difference between the refrigerant flowing in the refrigerator compartment evaporator 5b and the refrigerator compartment high rises, so that frost is generated relatively on the outer surface of the refrigerator compartment evaporator 5b. Accordingly, since the defrosting operation time or the number of defrosting operations can be reduced, the power consumption is reduced and the refrigerating efficiency of the refrigerating chamber is improved. In addition, since the refrigerant expanded in the freezer compartment capillary 3a flows only into the freezer compartment evaporator 5a, the temperature can be prevented from rising while the refrigerant passes through the refrigerator compartment evaporator 5b. Therefore, the freezing efficiency of the freezing compartment can be improved.

이상에서 설명한 바와 같이, 본 발명에 따르면, 전체적인 냉각효율을 향상시키며, 전력소모를 감소시킬 수 있는 냉장고에 관한 것이다.As described above, the present invention relates to a refrigerator capable of improving the overall cooling efficiency and reducing power consumption.

도 1은 본 발명에 따른 냉장고의 냉동시스템의 구성도,1 is a configuration diagram of a refrigeration system of a refrigerator according to the present invention;

도 2는 종래의 냉장고의 냉동시스템의 구성도이다. 2 is a configuration diagram of a refrigeration system of a conventional refrigerator.

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

3a : 냉동실모세관 3b : 냉장실모세관3a: freezer capillary 3b: cold compartment capillary

5a : 냉동실증발기 5b : 냉장실증발기5a: freezer evaporator 5b: cold room evaporator

7 : 응축기유출배관 10 : 압력조절용 모세관7: condenser outflow pipe 10: pressure control capillary

11a : 제1증발기유입배관 11b : 제2증발기유입배관11a: 1st evaporator inlet pipe 11b: 2nd evaporator inlet pipe

13 : 압축기유입배관 15a : 제1증발기유출배관13: compressor inlet pipe 15a: first evaporator outlet pipe

15b : 제2증발기유출배관15b: 2nd evaporator outflow pipe

Claims (2)

냉매압축용 압축기와, 상기 압축기로부터의 냉매를 응축시키는 응축기를 갖는 냉장고에 있어서,A refrigerator having a refrigerant compression compressor and a condenser for condensing refrigerant from the compressor, 상기 응축기의 유출구측로부터 분지되어 상기 압축기의 유입구측에서 합류되는 제1증발기배관 및 제2증발기배관과;A first evaporator pipe and a second evaporator pipe branched from an outlet side of the condenser and joined at an inlet side of the compressor; 상기 제1증발기배관상에 설치되어 상기 응축기로부터의 냉매를 팽창시키는 제1모세관과;A first capillary tube installed on the first evaporator pipe to expand the refrigerant from the condenser; 상기 제1증발기배관상에 설치되어 상기 제1모세관으로부터 전달되는 냉매가 증발되는 제1증발기와; A first evaporator installed on the first evaporator pipe and configured to evaporate the refrigerant delivered from the first capillary; 상기 제2증발기배관상에 설치되어 상기 응축기로부터의 냉매를 팽창시키는 제2모세관과;A second capillary tube installed on the second evaporator pipe to expand the refrigerant from the condenser; 상기 제2증발기배관상에 설치되어 상기 제2모세관으로부터 전달되는 냉매가 증발되는 제2증발기와;A second evaporator installed on the second evaporator pipe and configured to evaporate a refrigerant delivered from the second capillary; 상기 제1증발기배관과 상기 제2증발기배관 중 어느 하나의 일측과 상기 압축기의 유입구측 사이에 설치되어 상기 제1증발기 및 상기 제2증발기로부터 상기 압축기로 유출되는 냉매의 압력을 균등하게 조절하는 모세관 및 압력조절밸브 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 냉장고.A capillary tube installed between one side of the first evaporator pipe and the second evaporator pipe and an inlet side of the compressor to uniformly control the pressure of the refrigerant flowing out of the first evaporator and the second evaporator to the compressor. And at least one of a pressure control valve. 제 1 항에 있어서,The method of claim 1, 상기 제2모세관을 통과한 냉매의 압력은 상기 제1모세관을 통과한 냉매의 압력보다 소정 높으며, 상기 모세관 및 압력조절밸브 중 적어도 어느 하나는 상기 제2증발기의 출구측에 연결되어 상기 제2증발기로부터의 냉매를 감압시키는 것을 특징으로 하는 냉장고.The pressure of the refrigerant passing through the second capillary tube is higher than the pressure of the refrigerant passing through the first capillary tube, and at least one of the capillary tube and the pressure regulating valve is connected to the outlet side of the second evaporator so that the second evaporator is connected. A refrigerator characterized by reducing the refrigerant from the.
KR1019980013503A 1998-04-15 1998-04-15 Refrigerator KR100549062B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980013503A KR100549062B1 (en) 1998-04-15 1998-04-15 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980013503A KR100549062B1 (en) 1998-04-15 1998-04-15 Refrigerator

Publications (2)

Publication Number Publication Date
KR19990080338A KR19990080338A (en) 1999-11-05
KR100549062B1 true KR100549062B1 (en) 2006-06-01

Family

ID=37182154

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980013503A KR100549062B1 (en) 1998-04-15 1998-04-15 Refrigerator

Country Status (1)

Country Link
KR (1) KR100549062B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100739195B1 (en) * 2005-12-29 2007-07-13 엘지전자 주식회사 Refrigeration cycle of refrigerator having 2 evaporator capable of precisely controlling temperature
KR102150058B1 (en) * 2014-01-28 2020-09-01 엘지전자 주식회사 A refrigerator and a control method the same
KR102295156B1 (en) * 2014-01-28 2021-08-31 엘지전자 주식회사 A refrigerator
KR102359300B1 (en) * 2015-07-28 2022-02-08 엘지전자 주식회사 Refrigerator
KR102232215B1 (en) * 2020-10-29 2021-03-26 엘지전자 주식회사 A refrigerator
KR20230010381A (en) * 2021-07-12 2023-01-19 엘지전자 주식회사 refrigerator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960024150A (en) * 1994-12-31 1996-07-20 구자홍 Refrigeration control device of the refrigerator
KR970016460A (en) * 1995-09-18 1997-04-28 배순훈 Chiller of refrigerator
KR970047303A (en) * 1995-12-27 1997-07-26 정몽원 Multi air conditioner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960024150A (en) * 1994-12-31 1996-07-20 구자홍 Refrigeration control device of the refrigerator
KR970016460A (en) * 1995-09-18 1997-04-28 배순훈 Chiller of refrigerator
KR970047303A (en) * 1995-12-27 1997-07-26 정몽원 Multi air conditioner

Also Published As

Publication number Publication date
KR19990080338A (en) 1999-11-05

Similar Documents

Publication Publication Date Title
JP3102651U (en) Refrigerator refrigerator with two evaporators
KR20040020618A (en) Refrigerator
EP3657098B1 (en) Cooling system
KR0171745B1 (en) Refrigerant circulation method for refrigerator cooling purpose
KR100549062B1 (en) Refrigerator
US7263849B2 (en) Refrigerating system for refrigerator
US10895411B2 (en) Cooling system
JPH10300321A (en) Cooler for freezer refrigerator and its defrosting method
JP2001108345A (en) Two stage compression freezer/refrigerator
KR100845857B1 (en) Apparatus for refrigeration cycle and refrigerator including the apparatus and control method for the refrigerator
KR100293700B1 (en) Refrigeration system of refrigerator and its control method
JP2007298218A (en) Refrigerating device
KR20120003224A (en) Refrigerant circulation system for refrigerating apparatus
JP3735338B2 (en) Refrigeration apparatus for vehicle and control method thereof
JP3317222B2 (en) Refrigeration equipment
KR100522795B1 (en) Refrigerator that cool directly
KR100324359B1 (en) Refrigerator using two-stage expansion
KR100531365B1 (en) method for controling the cooling system with 2 evaporator
JPH0821664A (en) Refrigerating cycle device
KR100447195B1 (en) cooling apparatus and method of controling the apparatus in the refrigerator
KR0136046B1 (en) Refrigeration apparatus with two evaporators
US20210164711A1 (en) Cooling system for low temperature storage
KR0126728Y1 (en) A refrigerator
KR100437808B1 (en) method for controling refrigerator with two evaporator
KR100606706B1 (en) refrigerator and method for controlling the same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20121228

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20131230

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee