KR0135133B1 - Evaporator structure for cooler with double evaporators - Google Patents

Evaporator structure for cooler with double evaporators

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Publication number
KR0135133B1
KR0135133B1 KR1019940031212A KR19940031212A KR0135133B1 KR 0135133 B1 KR0135133 B1 KR 0135133B1 KR 1019940031212 A KR1019940031212 A KR 1019940031212A KR 19940031212 A KR19940031212 A KR 19940031212A KR 0135133 B1 KR0135133 B1 KR 0135133B1
Authority
KR
South Korea
Prior art keywords
evaporator
compartment
refrigerating
refrigerator
auxiliary
Prior art date
Application number
KR1019940031212A
Other languages
Korean (ko)
Other versions
KR960018425A (en
Inventor
송계영
Original Assignee
구자홍
엘지전자주식회사
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Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019940031212A priority Critical patent/KR0135133B1/en
Publication of KR960018425A publication Critical patent/KR960018425A/en
Application granted granted Critical
Publication of KR0135133B1 publication Critical patent/KR0135133B1/en

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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
    • 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
    • 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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators

Abstract

본 발명은 냉장실을 냉장시켜 주기 위한 열교환이 이중으로 행하여 지도록 구조를 변경하여 냉장실용 증발기의 크기변형 없이도 상기 냉장실의 냉각효율을 향상시킬 수 있도록 함과 함께 냉장고의 무게가 늘어나는 문제점도 미연에 방지할 수 있도록 한 것이다.The present invention is to change the structure so that the heat exchange for refrigerating the refrigerating compartment is performed in a double to improve the cooling efficiency of the refrigerating compartment without changing the size of the evaporator for the refrigerating compartment and also to prevent the problem that the weight of the refrigerator increases. I would have to.

이를 위해 본 발명은 냉매를 압축시키는 압축기(1)에 냉동실용 증발기(6)를 메인파이프(7)로 연결하고 상기 냉동실용 증발기와 메인 파이프 사이에 냉장실용 증발기(9)를 보조파이프(10)에 의해 병렬로 연결 구성한 것에 있어서, 상기 보조파이프(10)의 냉장실용 증발기(13) 후방에 상변화물질이 채워진 보조증발기(13)를 설치하여서 된 것이다.To this end, the present invention connects the freezer compartment evaporator (6) to the compressor (1) for compressing the refrigerant to the main pipe (7) and the refrigerating chamber evaporator (9) between the freezer compartment evaporator and the main pipe (10). By connecting in parallel by the configuration, the auxiliary evaporator (13) filled with a phase change material in the rear of the refrigerator compartment evaporator (13) of the auxiliary pipe (10).

Description

두개의 증발기를 갖는 냉장고의 냉장실용 증발기구조Evaporator structure for the refrigerator compartment of a refrigerator having two evaporators

제1도는 종래 두개의 증발기를 갖는 냉장고의 냉동싸이클도.1 is a refrigeration cycle of a refrigerator having two conventional evaporators.

제2도는 본 발명 두개의 증발기를 갖는 두개의 냉동싸이클도.2 is a diagram of two refrigeration cycles having two evaporators of the present invention.

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

6 : 냉동실용 증발기9 : 냉장실용 증발기6: evaporator for freezer 9: evaporator for refrigerator

10 : 보조파이프13 : 보조증발기10: auxiliary pipe 13: auxiliary evaporator

본 발명은 두개의 증발기를 갖는 냉장고의 냉장실용 증발기 구조에 관한 것으로서, 더욱 상세하게는 냉장실을 냉각시키기 위해 열교환을 행하는 냉장실용 증발기의 크기를 필요이상 증대시키지 않고도 상기 냉장실의 냉각효율을 향상시킬 수 있도록 한 것이다.The present invention relates to an evaporator structure for a refrigerating compartment of a refrigerator having two evaporators, and more particularly, to improve the cooling efficiency of the refrigerating compartment without further increasing the size of the refrigerating compartment evaporator that performs heat exchange to cool the refrigerating compartment. It would be.

일반적으로 냉장고는 식품을 장기간 신선하게 보관하기 위한 기기로서, 기기본체와, 식품을 냉동 보관할 수 있는 냉동실과, 식품을 냉장 보관할 수 있는 냉장실과, 상기 냉동실과 냉장실을 냉각시켜 줄 수 있는 냉동싸이클로 크게 구성되어 있는데, 두개의 증발기(냉동실용 증발기와 냉장실용 증발기)를 갖는 냉장고는 한개의 증발기를 갖는 냉장고와는 달리 냉동실과 냉장실을 동시에 냉각시켜 줄 수 있는 것이 아니고 냉장실을 먼저 냉각시킨 다음 냉동실을 냉각시켜 주도록 되어 있다.Generally, a refrigerator is a device for storing food fresh for a long time. The refrigerator includes a device body, a freezer compartment for freezing food, a refrigerator compartment for freezing food, and a freezing cycle for cooling the freezer and refrigerator compartment. A refrigerator having two evaporators (a freezer evaporator and a freezer evaporator) is not capable of simultaneously cooling the freezer compartment and the refrigerating compartment, unlike a refrigerator having one evaporator, but cooling the freezer compartment first and then the freezer compartment. It is supposed to be.

상기한 두개의 증발기를 갖는 냉장고의 종래 냉동싸이클을 첨부도면 제1도에 도시된 바와 같이 압축기(1)와 응축기(2)와 보조응축기(3)와 드라이어(4)와 냉동실 팽창변(5)과 냉동실용 증발기(6)가 메인파이프(7)에 각각 설치되어 있고, 냉장실용 팽창변(8)과 냉장실용 증발기(9)가 보조파이프(10)에 각각 설치되어 있는데, 상기 냉장실용 팽창변(8) 및 냉장실용 증발기(9)는 냉동실용 팽창변(5) 및 냉동실용 증발기(6)와 병렬연결되도록 상기 보조파이프(10)의 일단이 드라이어(4)와 냉장실용 팽창변(5) 사이의 메인파이프(7)에 연결되어 있고, 보조파이프(10)의 타단이 냉동실용 증발기(6)와 압축기(1) 사이의 메인파이프(7)에 연결되어 있다.The conventional refrigeration cycle of the refrigerator having the above two evaporators is attached to the compressor (1), the condenser (2), the auxiliary condenser (3), the dryer (4) and the freezer compartment expansion valve (5) as shown in FIG. The freezer compartment evaporator 6 is provided in the main pipe 7, respectively, and the refrigerating chamber expansion valve 8 and the refrigerating chamber evaporator 9 are installed in the auxiliary pipe 10, respectively. And the refrigerating chamber evaporator 9 includes a main pipe between one end of the auxiliary pipe 10 between the dryer 4 and the refrigerating chamber expansion valve 5 so as to be connected in parallel with the freezing chamber expansion valve 5 and the freezing chamber evaporator 6. And the other end of the auxiliary pipe 10 is connected to the main pipe 7 between the freezer compartment evaporator 6 and the compressor 1.

또한 메인파이프(7)의 냉동실용 팽창변(5) 입구측에는 드라이어(4)를 통과하여 상기 냉동실용 팽창변(5)으로 이동되는 냉매를 필요에 따라 차단시켜 주도록 냉동실용 솔레노이드밸브(11)가 설치되어 있고, 보조파이프(10)의 냉장실용 팽창변(8) 입구측에는 드라이어(4)를 통과하여 상기 냉장실용 팽창변(8)으로 이동되는 냉매를 필요에 따라 차단시켜 주도록 냉장실용 솔레노이드밸브(12)가 설치되어 있다.In addition, the freezing chamber solenoid valve 11 is installed at the inlet side of the expansion chamber 5 for the freezing compartment of the main pipe 7 so as to block the refrigerant passing through the dryer 4 to the expansion chamber 5 for the freezing compartment as necessary. In addition, a refrigerating chamber solenoid valve 12 is installed at the inlet side of the expansion chamber 8 for the refrigerating chamber to block the refrigerant passing through the dryer 4 to the expansion chamber 8 for the refrigerating chamber as necessary. It is.

따라서, 압축기(1)에 전원을 인가함에 따라 압축된 고온, 고압의 기체상태 냉매가 응축기(2)를 통과하면서 고온, 고압의 액체상태 냉매로 변환되고 이 변환된 냉매는 보조응축기(3)를 지나 드아이어(4)를 통과하면서 냉매에 함유된 수분이 대부분 제거되며 상기 드라이어를 통과한 고온, 고압의 액체냉매는 메인파이프(7)에 설치된 냉동실용 솔레노이드밸브(11) 및 보조파이프(10)에 설치된 냉동실용 솔레노이드밸브(12)의 열고 닫힘에 따라 냉동실용 팽창변(5) 쪽으로 안내되어 냉동실을 냉각시키거나 냉장실용 팽창변(8) 쪽으로 안내되어 냉장실을 냉각시킨다.Therefore, as the power is applied to the compressor 1, the compressed high-temperature, high-pressure gaseous refrigerant passes through the condenser 2, and is converted into a high-temperature, high-pressure liquid state refrigerant, and the converted refrigerant converts the auxiliary condenser 3. Most of the moisture contained in the refrigerant is removed while passing through the deair (4), and the high-temperature, high-pressure liquid refrigerant passing through the dryer is provided with a solenoid valve (11) and an auxiliary pipe (10) for a freezer installed in the main pipe (7). In accordance with the opening and closing of the freezing chamber solenoid valve 12 is installed in the freezing chamber expansion side (5) is guided to cool the freezing chamber or guided toward the refrigerating chamber expansion side (8) to cool the refrigerator compartment.

즉, 냉동실용 솔레노이드밸브(11)가 열리고 냉장실용 솔레노이드밸브(12)가 닫히면 고온, 고압의 액체상태 냉매가 냉동실용 팽창변(5)으로만 통과하면서 저온, 저압의 액체상태 냉매로 변환된 다음 계속해서 냉동실 증발기(6)를 통과하면서 주위의 열을 빼앗는 열교환작용을 행하는데, 이때 도시하지 않은 냉동실용 팬의 작동에 의해 발생된 공기가 상기 냉동실용 증발기(6)를 통과하는 과정에서 온도가 떨어진 다음 계속해서 냉동실로 들어가므로 상기 냉동실이 냉각되고, 냉동실용 솔레노이드밸브(11)가 닫히고 냉장실용 솔레노이드밸브(12)가 열리면 고온, 고압의 액체상태 냉매가 냉장실용 팽창변(8)으로만 통과하면서 저온, 저압의 액체상태냉매로 변환된 다음 계속해서 냉장실용 증발기(9)를 통과하면서 주위의 열을 빼앗은 열교환작용을 행하는데, 이때 도시하지 않은 냉장실용 팬의 작동에 의해 발생된 공기가 상기 냉장실용 증발기(9)를 통과하는 과정에서 온도가 떨어진 다음 계속해서 냉장실로 들어가므로 상기 냉장실이 냉각된다.That is, when the freezing chamber solenoid valve 11 is opened and the refrigerating chamber solenoid valve 12 is closed, the high-temperature and high-pressure liquid state refrigerant passes only to the freezing chamber expansion valve 5, and then is converted into a low-temperature, low-pressure liquid state refrigerant and then continues. Heat exchange to take away the surrounding heat while passing through the freezer compartment evaporator (6), wherein the air generated by the operation of a freezer compartment fan (not shown) passes through the freezer compartment evaporator (6). Since the freezing chamber is cooled, the freezing chamber solenoid valve 11 is closed, and the refrigerating chamber solenoid valve 12 is opened. Then, the high-temperature and high-pressure liquid state refrigerant passes only through the expansion chamber 8 for the refrigerating chamber. The liquid is converted into a low pressure liquid refrigerant and then passed through a refrigerating chamber evaporator (9) to conduct heat exchange to take away the surrounding heat. Since the air generated by the operation of the refrigerator compartment fan (not shown) passes through the refrigerator compartment evaporator 9, the temperature drops and then enters the refrigerator compartment continuously, thereby cooling the refrigerator compartment.

한편 이상에서 설명된 작용에서 냉동실이나 냉장실을 냉각시켜 주기위해 저온, 저압의 액체상태 냉매가 냉동실용 증발기(6) 및 냉장실용 증발기(9)를 통과하면서 열교환을 일으킨 후에는 상기 저온, 저압의 액체상태 냉매는 저온, 저압의 기체상태 냉매로 변환되어 다시 압축기(1)로 들어간다.On the other hand, in order to cool the freezer compartment or the refrigerating compartment in the above-described operation, after the low-temperature, low-pressure liquid-state refrigerant passes through the freezer compartment evaporator 6 and the refrigerating compartment evaporator 9 to cause heat exchange, the low temperature, low pressure liquid The state refrigerant is converted into gaseous refrigerant of low temperature and low pressure, and enters the compressor 1 again.

그러나 종래 이와같은 두개의 증발기를 갖는 냉장의 냉동사이클은 냉동실과 냉장실의 체적에 따른 질량비로 계산해 보면 냉동실을 냉각시키기 위한 냉동실용 증발기의 증발열량을 100%로 할때 냉장실을 냉각시키기 위한 냉장실용 증발기의 증발열량은 냉장실의 체적에 따라 다소간의 차이가 있기는 하지만 상기 냉동실용 증발기의 증발열량 보다는 매우 높은 상태이어야 하므로 상기 냉장실용 증발기가 냉동실용 증발기에 비해 그 크기가 상대적으로 커져야만 함에 따라 냉장실의 체적이 냉장실용 증발기의 크기가 비례된 만큼 줄어들 수 밖에 없는 문제점이 있음은 물론 냉장고가 무거워지는 문제점도 있었다.However, the refrigeration cycle of the refrigerator having two such evaporators conventionally calculated by the mass ratio according to the volume of the freezer compartment and the refrigerator compartment, and the evaporator for the refrigerator compartment for cooling the refrigerator compartment when the evaporation heat of the freezer compartment evaporator for cooling the freezer compartment is 100%. Although the amount of heat of evaporation varies slightly depending on the volume of the refrigerating compartment, the evaporation capacity of the refrigerating compartment should be relatively larger than that of the freezer compartment evaporator because the evaporation heat of the refrigerating compartment should be relatively higher than that of the freezer evaporator. The volume of the refrigerator evaporator is proportional to the size of the evaporator has a problem that can only be reduced, as well as the refrigerator is heavy.

본 발명은 상기 종래의 문제점을 해결하기 위하여 안출한 것으로서, 냉장실을 냉각시켜 주기위한 열교환이 이중으로 행하여 지도록 구조를 변경하여 냉장실용 증발기의 크기변형 없이도 상기 냉장실의 냉장효율을 향상시킬 수 있도록 함과 함께 냉장고의 무게가 늘어나는 문제점도 미연에 방지할 수 있도록 하는데 그 목적이 있다.The present invention has been made in order to solve the above problems, and to change the structure so that the heat exchange to cool the refrigerating compartment is performed in a double to improve the refrigerating efficiency of the refrigerating compartment without changing the size of the evaporator for the refrigerating compartment and Along with the purpose of preventing the problem that the weight of the refrigerator increases.

상기 목적을 달성하기 위한 본 발명 형태에 따르면, 냉매를 압축시키는 압축기에 냉동실용 증발기를 메인파이프로 연결하고 상기 냉동실용 증발기와 메인파이프 사이에 냉장실용 증발기를 보조파이프에 의해 병렬로 연결 구성한 것에 있어서, 상기 보조파이프의 냉장실용 증발기 후방에 상변화물질이 채워진 보조증발기를 설치하여서 된 두개의 증발기를 갖는 냉장고의 냉장실용 증발기 구조가 제공된다.According to the aspect of the present invention for achieving the above object, in a compressor configured to compress a refrigerant, the freezer compartment evaporator is connected to the main pipe, and the freezer compartment evaporator is connected in parallel by an auxiliary pipe between the freezer compartment evaporator and the main pipe. There is provided a refrigerator compartment evaporator structure of a refrigerator having two evaporators formed by installing an auxiliary evaporator filled with a phase change material at a rear side of the refrigerator compartment evaporator of the auxiliary pipe.

이하 본 발명을 일 실시예로 도시한 첨부된 도면 제2도를 참고로하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to FIG. 2 of the accompanying drawings.

첨부도면 제2도는 본 발명 두개의 증발기를 갖는 냉장고용 냉동싸이클로서, 본 발명의 구성주 기 설명된 종래의 구성과 동일한 구성의 설명은 생략하고 다만 도면상에 종래 부호와 동일부호로 표기하였음을 미리 밝혀둔다.2 is a freezing cycle for a refrigerator having two evaporators of the present invention, in which the description of the same configuration as the conventional configuration described above is omitted, and the same reference numerals as those in the conventional drawings are used in advance. Reveal.

이하 본 발명의 요부 구성을 설명하면 다음과 같다.Hereinafter, the main components of the present invention will be described.

냉장실용 증발기(9)를 냉동실용 증발기(6)와 동일한 증발열량을 갖도록 작은 크기로 하고, 상기 냉장실용 증발기(9)가 설치된 보조파이프(10)에는 냉장실용 증발기(9)의 후방으로 위치되게 상변화물질인 물이 채워진 보조증발기(13)를 설치하여 냉장실을 냉각시킬때 냉장실용 증발기(9)가 보조증발기(13)와 함때 증발작용을 행하도록 구성한다.The refrigerator compartment evaporator 9 has a small size so as to have the same amount of heat of evaporation as the refrigerator compartment evaporator 6, and the auxiliary pipe 10 in which the refrigerator compartment evaporator 9 is installed is located behind the refrigerator compartment evaporator 9. When the auxiliary evaporator 13 filled with water, which is a phase change material, is installed, the refrigerating compartment evaporator 9 is configured to perform an evaporation action with the auxiliary evaporator 13.

이와같이 구성된 본 발명의 작용은 압축기(1)에서 압축된 냉매가 응축기(2), 보조응축기(3), 드라이어(4)를 연속적으로 통과한 다음 냉동실용 솔레노이드밸브(11)의 열림에 따라 냉동실을 냉각시키는 과정은 기설명된 종래의 작용과 동일하므로 생략하고 이하에서는 냉장실용 솔레노이드밸브(12)의 열림에 따라 냉장실을 냉각시키는 과정만을 설명하면 다음과 같다.The operation of the present invention configured as described above allows the refrigerant compressed by the compressor (1) to pass through the condenser (2), the auxiliary condenser (3), and the dryer (4) continuously and then open the freezer compartment as the freezing chamber solenoid valve (11) opens. Since the cooling process is the same as the conventional operation described above, it will be omitted. Hereinafter, only the process of cooling the refrigerating compartment according to the opening of the refrigerating compartment solenoid valve 12 will be described.

냉동실용 솔레노이드밸브(11)가 닫히고 냉장실용 솔레노이드밸브(12)가 열리고 고온, 고압의 액체상태 냉매가 냉장실용 팽창변(8)으로만 통과하면서 저온, 저압의 액체상태 냉매로 변환된 다음 계속해서 냉장실용 증발기(9)를 통과하면서 열교환을 일으켜 주위의 열을 빼앗은 증발작용을 행하는데, 이때에는 냉동실용 증발기(6)의 크기가 냉장실용 증발기(9)와 같으므로 상기 냉동실용 증발기(6)의 증발열량 100%로 할때 냉장실용 증발기(9)와 증발열량 또한 100%밖에 안되고, 이에따라 통상 냉장실의 체적이 냉동실의 체적보다 더 큰 상태임을 감안할 때 냉장실의 냉각에 필요한 상기 냉장실용 증발기(9)의 증발열량이 크게 부족하게 된다.The freezing chamber solenoid valve 11 is closed and the refrigerating chamber solenoid valve 12 is opened, and the high temperature and high pressure liquid refrigerant passes only through the refrigerating chamber expansion valve 8 to be converted into a low temperature and low pressure liquid refrigerant and then continues to be refrigerated. The evaporation action takes place while passing through the practical evaporator (9) to take heat away from the surroundings. At this time, the size of the freezer compartment evaporator (6) is the same as that of the refrigerator compartment evaporator (9). When the amount of heat of evaporation is 100%, the refrigerating chamber evaporator 9 and the amount of heat of evaporation are also only 100%. Therefore, the refrigerating chamber evaporator 9 necessary for cooling the refrigerating chamber is required in consideration of the fact that the volume of the refrigerating chamber is usually larger than that of the freezing chamber. The amount of heat of evaporation is greatly insufficient.

한편 냉장실용 증발기(9)를 통과한 저온, 저압의 기체냉매는 계속해서 보조파이프(10)를 통해 이동하다가 상기 보조파이프의 냉장실용 증발기(9) 후방에 위치된 상태로 설치되어 있는 보조증발기(13)를 통과하게 되므로 결국 상기 냉장실용 증발기(9)의 크기 제한으로 인해 확보되지 못하였던 증발열량이 보조증발기(13)에서 확보되고, 이에따라 냉장실의 냉각에 필요한 증발열량이 모두 확보된다.On the other hand, the low-temperature, low-pressure gas refrigerant passing through the refrigerating chamber evaporator (9) continues to move through the auxiliary pipe 10, the auxiliary evaporator is installed in a state located behind the refrigerating chamber evaporator (9) of the auxiliary pipe ( After passing through 13), the amount of evaporation heat that could not be secured due to the size limitation of the refrigerating chamber evaporator 9 is secured in the auxiliary evaporator 13, and thus, all the amount of evaporation heat required for cooling the refrigerating compartment is secured.

그럼 여기서 냉장실용 증발기(9)를 통과한 냉매가 보조증발기(13)를 통과함에 따라 상기 냉장실용 증발기(9)에서 확보하지 못하였던 증발열량 만큼은 보조증발기(13)가 확보하기까지의 과정을 구체적으로 설명하면 다음과 같다.Then, as the refrigerant passing through the refrigerating chamber evaporator 9 passes through the auxiliary evaporator 13, the process until the sub-evaporator 13 secures the amount of evaporation heat that the refrigerating chamber evaporator 9 cannot secure. Explained as follows.

냉장실용 증발기(9)를 통과한 저온, 저압의 기체냉매가 보조증발기(13)를 통과하게 되면 상기 보조증발기 내부에는 상변화물질이 물이 채워져 있음에 따라 상기 물이 냉매와의 온도차에 의해 열교환되어 얼음으로 변하게 되고, 이에따라 보조증발기(13)가 냉장실용 증발기(9)에서 확보하지 못한 만큼의 증발열량을 확보하게 되는 것이다.When the low-temperature, low-pressure gas refrigerant passing through the refrigerating chamber evaporator 9 passes through the auxiliary evaporator 13, the water is exchanged by the temperature difference with the refrigerant as the phase change material is filled with water inside the auxiliary evaporator. It turns into ice, and accordingly the secondary evaporator 13 is to secure the amount of heat of evaporation that can not be secured in the refrigerating chamber evaporator (9).

상기에서 상변화물질로 물을 사용한 것은, 열교환의 신속성과 원가적인 측면을 고려하였을 때 물이 최적이기 때문이다.The reason why water is used as the phase change material is that water is optimal considering the speed and cost of heat exchange.

이와같이 냉장실용 증발기(9)와 보조증발기(13)에 의해 냉장실의 냉각에 필요한 증발열량이 확보되면 도시하지 않은 냉장실용 팬의 작동에 따라 발생된 공기가 생기 냉장실용 증발기(9)와 보조증발기(13)를 연속적으로 지나가므로 이 공기가 찬공기로 바뀐 다음 다음 냉장실로 들어가고, 이에따라 냉장실로 냉각된다.When the amount of evaporation heat required for cooling the refrigerating chamber is secured by the refrigerating chamber evaporator 9 and the auxiliary evaporator 13, air generated by the operation of the refrigerating chamber fan (not shown) generates the refrigerating chamber evaporator 9 and the auxiliary evaporator ( Passing 13) successively, this air is changed to cold air and then enters the next fridge, which is then cooled to the fridge.

한편 냉장실용 증발기(9)와 보조증발기(13)를 통과하면서 열교환에 의해 차가워진 공기가 일정시간 냉장실로 들어가게 되면 상기 냉장실은 어느순간 적정냉장온도(통상 3∼7℃)에 도달하게 되는데, 이때에는 냉장실내에 설치된 온도센서가 상기 냉장실의 온도를 감지하고 그 감지값을 제어부로 보내주므로 상기 제어부의 제어에 의해 보조파이프(10)에 설치된 냉장실용 솔레노이드밸브(12)가 닫힘에 따라 냉장실용 증발기(9)쪽으로는 더 이상의 냉매가 이동하지 않게 된다.On the other hand, when the air cooled by heat exchange while passing through the refrigerating chamber evaporator 9 and the auxiliary evaporator 13 enters the refrigerating chamber for a predetermined time, the refrigerating chamber reaches an appropriate refrigerating temperature (usually 3 to 7 ° C.) at some point. Since the temperature sensor installed in the refrigerating compartment senses the temperature of the refrigerating compartment and sends the detected value to the control unit, the refrigerating compartment evaporator (Refrigerator) as the solenoid valve 12 for the refrigerating compartment installed in the auxiliary pipe 10 under the control of the control unit No more refrigerant moves to 9).

상기와 같이 냉장실용 솔레노이드밸브(12)와 닫힘에 따라 냉장실용 증발기(9) 쪽으로 더 이상의 냉매가 이동하지 않게 되면 상기 냉장실용 증발기와 보조증발기(13)는 증발작용을 행하지 않게됨은 물론 상기 보조증발기 내의 상변화물질인 물이 얼음상태에서 다시 녹아내리고, 이후 냉장실의 온도가 적정냉장온도보다 높게되면 냉장실용 솔레노이드밸브(13)는 온도센서의 감지에 따라 제어부의 제어에 따라 다시 열리므로 냉매가 보조파이프(10)를 통해 냉장실용 증발기(9)쪽으로 다시 이동함에 따라 기 설명된 작용과 동일하게 상기 냉장실용 증발기와 보조증발기(13)가 동시에 증발작용을 행하게 된다.As described above, when the refrigerant does not move toward the refrigerating chamber evaporator 9 as the solenoid valve 12 for the refrigerating chamber closes, the refrigerating chamber evaporator and the sub-evaporator 13 do not evaporate, of course, the sub-evaporator. When water, a phase-change material in it, melts again in an ice state, and if the temperature of the refrigerating compartment is higher than the appropriate refrigerating temperature, the refrigerating compartment solenoid valve 13 is reopened under the control of the controller according to the detection of the temperature sensor, so the refrigerant is As it moves back toward the refrigerating chamber evaporator 9 through the pipe 10, the refrigerating chamber evaporator and the sub-evaporator 13 perform the same evaporation action as described above.

그러므로 본 발명은 냉장실은 냉각시킬때 냉장실용 증발기와 보조증발기가 함께 증발작용을 행하므로 상기 냉장실용 증발기를 냉동실용 증발기의 크기보다 크게 하지 않아도 냉장실의 냉각효율이 향상되는 효과가 있음은 물론 냉장고의 무거워짐이 미연에 방지되는 효과가 있다.Therefore, in the present invention, when the refrigerating compartment is cooled, the refrigerating compartment evaporator and the auxiliary evaporator perform evaporation together, so that the refrigerating compartment evaporator does not have to be larger than the size of the freezing compartment evaporator. It is effective to prevent heavy weight.

Claims (2)

냉매를 압축시키는 압축기(1)에 냉동실용 증발기(6)를 메인파이프(7)로 연결하고 상기 냉동실용 증발기(6)와 메인파이프(7) 사이에 냉장실용 증발기(9)를 보조파이프(10)에 의해 병렬로 연결 구성한 것에 있어서, 상기 보조파이프(10)의 냉장실용 증발기(9) 후방에 상변화물질이 채워진 보조증발기(13)를 설치하여서 된 것을 특징으로 하는 두개의 증발기를 갖는 냉장고의 냉장실용 증발기 구조.The freezer compartment evaporator 6 is connected to the compressor 1 for compressing the refrigerant by the main pipe 7, and the refrigerating compartment evaporator 9 is connected between the freezer compartment evaporator 6 and the main pipe 7. In the parallel connection configuration by), the auxiliary evaporator (9) of the auxiliary pipe (10) of the refrigerator having two evaporators, characterized in that the auxiliary evaporator (13) filled with a phase change material is installed Evaporator structure for the fridge. 제1항에 있어서, 상기 보조증발기(13)에 채워진 상변화물질이 물인 것을 특징으로 하는 두개의 증발기를 갖는 냉장고의 냉장실용 증발기 구조.The refrigerator evaporator structure of a refrigerator having two evaporators according to claim 1, wherein the phase change material filled in the auxiliary evaporator (13) is water.
KR1019940031212A 1994-11-25 1994-11-25 Evaporator structure for cooler with double evaporators KR0135133B1 (en)

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