KR0159897B1 - A cycling device of coolant in multi-airconditioner - Google Patents

A cycling device of coolant in multi-airconditioner Download PDF

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Publication number
KR0159897B1
KR0159897B1 KR1019960010296A KR19960010296A KR0159897B1 KR 0159897 B1 KR0159897 B1 KR 0159897B1 KR 1019960010296 A KR1019960010296 A KR 1019960010296A KR 19960010296 A KR19960010296 A KR 19960010296A KR 0159897 B1 KR0159897 B1 KR 0159897B1
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South Korea
Prior art keywords
refrigerant
solenoid valve
condenser
room
unit
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KR1019960010296A
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Korean (ko)
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KR970070805A (en
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정수영
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김광호
삼성전자주식회사
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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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • F25B2400/0415—Refrigeration circuit bypassing means for the receiver
    • 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

Abstract

하나의 실외기에서 용량이 다른 수개의 실내기로 냉매를 알맞게 공급하여 냉방성능을 향상시키며 실내의 크기에 맞는 냉방을 할 수 있게 한 멀티 에어컨의 냉매 순환장치에 관한 것으로, 종래의 멀티 에어컨이 실외기에 냉방능력이 동일한 실내기를 복수개 연결하게 실내의 여러곳을 냉방하게 되어 있어서, 실내의 크기에 맞는 냉방을 하기 어려운 문제점을 해결하기 위해 안출된 것으로, 본 발명은 수액기와 압축기와 응축기를 구비한 실외기에 냉방용량이 큰 패키지 실내기와 냉방용량이 작은 복수의 룸 실내기를 각각 연결함에 있어서, 상기 응축기와 각 실내기의 증발기를 연결하는 연결관에 제어장치에 의해 개폐되는 솔레노이드 밸브와 모세관을 구비한 바이패스관과 냉매분배부를 설치하여 냉매의 흐름을 제어하며, 상기 응축기에서 분기한 바이패스관을 수액기에 연결시켜 냉매량을 조절할 수 있게 하여, 각 실내기의 선택적인 작동에 따라 알맞게 냉매를 공급할 수 있는 멀티 에어컨의 냉매 순환 장치를 제공한다.Refrigerant circulation device of a multi air conditioner that improves cooling performance by supplying refrigerant to several indoor units having different capacities from one outdoor unit and enables cooling according to the size of a room. It is designed to solve the problem that it is difficult to cool the room according to the size of the room, so as to connect a plurality of indoor units having the same capacity, the present invention is cooled in an outdoor unit having a receiver, a compressor and a condenser In connecting a large package indoor unit and a plurality of room indoor units having a small cooling capacity, the bypass tube having a solenoid valve and a capillary tube which are opened and closed by a control device to the connection pipe connecting the condenser and the evaporator of each indoor unit; By installing a refrigerant distribution unit to control the flow of the refrigerant, and branched from the condenser By connecting the pass pipe to the receiver to adjust the amount of refrigerant, to provide a refrigerant circulation device of the multi-air conditioner that can supply the refrigerant according to the selective operation of each indoor unit.

Description

멀티 에어컨의 냉매 순환장치Refrigerant Circulator of Multi Air Conditioner

제1도는 본 발명 실시예의 멀티 에어컨의 냉매 순환장치를 나타낸 구성도이다.1 is a block diagram showing a refrigerant circulation system of a multi-air conditioner according to an embodiment of the present invention.

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

1 : 수액기 2 : 압축기1: receiver 2: compressor

3 : 응축기 SV1-SV7 : 솔레노이드밸브3: condenser SV1-SV7: solenoid valve

C1-C7 : 모세관C1-C7: capillary

본 발명은 멀티 에어컨의 냉매 순환장치에 관한 것으로, 더욱 상세하게는 하나의 실외기에서 용량이 다른 수개의 실내기로 냉매를 알맞게 공급하여 냉방성능을 향상시키며 실내의 크기에 맞는 냉방을 할 수 있게 한 멀티 에어컨의 냉매 순환장치에 관한 것이다.The present invention relates to a refrigerant circulation device of a multi-air conditioner, and more particularly, a multi-air conditioner that improves cooling performance by appropriately supplying a refrigerant to several indoor units having different capacities in one outdoor unit and enables cooling according to the size of a room. It relates to a refrigerant circulation device of an air conditioner.

일반적으로 멀티 에어컨은 압축기와 응축기와 모세관을 구비한 실외기에서 저온 저압의 냉매를 증발기를 구비한 수개의 실내기로 공급하여 실내의 여러곳을 냉방시킬 수 있게 한 것이다.In general, the multi-air conditioner is to cool the various places in the room by supplying a low-temperature low-pressure refrigerant to several indoor units having an evaporator in an outdoor unit having a compressor, a condenser and a capillary tube.

상기와 같은 멀티 에어컨은 하나의 실외기에 수개의 실내기를 연결하여 사용함으로써 제품의 가격을 낮출 수 있으며, 동시에 여러곳을 냉방시킬 수 있어서 오늘날 많이 사용하고 있다.The multi-air conditioner as described above can be used to connect several indoor units to one outdoor unit to lower the price of the product, and at the same time can cool several places and are used a lot today.

그러나 종래의 멀티형 에어컨은 실외기에 냉방능력이 동일한 실내기를 복수개 연결하게 되어 있어서, 실내의 크기에 맞는 냉방을 하기 어려운 문제점이 있었다.However, the conventional multi-type air conditioner is connected to a plurality of indoor units having the same cooling capacity to the outdoor unit, and thus there is a problem that it is difficult to cool the room according to the size of the room.

본 발명은 상기와 같은 종래의 멀티 에어컨의 냉매순환장치의 문제점을 해결하기 위해 안출된 것으로, 실외기에서 토출되는 냉매를 실내기의 냉방용량에 맞게 분배시켜서 실내의 크기에 맞는 냉방을 할수 있게 한 멀티형 에어컨의 냉매순환장치를 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems of the conventional refrigerant circulation device of the multi-air conditioner as described above, by distributing the refrigerant discharged from the outdoor unit in accordance with the cooling capacity of the indoor unit multi-type air conditioner to enable the cooling according to the size of the room An object of the present invention is to provide a refrigerant circulation device.

상기와 같은 본 발명의 목적은 응축기와 실내기의 증발기를 연결하는 연결관에 제어장치에 의해 개폐되어 냉매를 흐름을 제어하는 다수의 솔레노이드 밸브와 모세관에 의해 달성된다.The object of the present invention as described above is achieved by a plurality of solenoid valves and capillaries to control the flow of the refrigerant is opened and closed by a control device to the connecting pipe connecting the condenser and the evaporator of the indoor unit.

즉, 본 발명은 수액기와 압축기와 응축기를 구비한 실외기에 냉방용량이 큰 패키지 실내기와 냉방용량이 작은 복수의 롬 실내기를 각각 연결함에 있어서, 상기 응축기와 각 실내기의 증발기를 연결하는 연결관에 제어장치에 의해 개폐되는 솔레노이드 밸브와 모세관을 구비한 바이패스관과 냉매분배부를 설치하여 냉매의 흐름을 제어하며, 상기 응축기에서 분기한 바이패스관을 수액기에 연결시켜 냉매량을 조절할 수 있게 하여, 각 실내기의 작동에 따라 알맞게 냉매를 공급할 수 있게 한 것을 특징으로 한다.That is, the present invention is to control the connecting tube connecting the condenser and the evaporator of each indoor unit in connecting the package indoor unit having a large cooling capacity and the plurality of ROM indoor units having a small cooling capacity respectively in an outdoor unit having a receiver, a compressor and a condenser. By controlling the flow of refrigerant by installing a bypass tube having a solenoid valve and a capillary tube opened and closed by a device and a refrigerant distribution unit, and connecting the bypass tube branched from the condenser to a receiver to control the amount of refrigerant, each indoor unit According to the operation of the coolant can be properly supplied.

이하 본 발명의 멀티 에어컨의 냉매 순환장치를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a refrigerant circulation device of a multi-air conditioner of the present invention will be described in detail.

제1도는 본 발명의 실시예의 멀티에어컨의 냉매 순환장치를 나타낸 구성도로서, 실외기에는 종래와 같이 액체냉매와 기체냉매를 분리하는 수액기(ACCUMULATOR)(1)와 이 수액기로 부터 나온 기체냉매를 압축하는 압축기(COMPRESSOR)(2)와 압축된 냉매를 상온의 액체냉매로 변화시키는 응축기(CONDENSER)(3)가 설치되어 있다.1 is a block diagram showing a refrigerant circulation system of a multi-air conditioner according to an embodiment of the present invention. In the outdoor unit, a liquid receiver (ACCUMULATOR) 1 for separating a liquid refrigerant and a gas refrigerant as in the prior art and a gas refrigerant from the receiver are used. A compressor 2 for compression and a condenser 3 for converting the compressed refrigerant into a liquid refrigerant at room temperature are provided.

상기 실외기에 연결되는 복수의 실내기는 마루정도의 넓은 공간을 냉방할 수 있는 패키지 실내기(PAC) 한대와 방정도의 작은 공간을 냉방할 수 있는 룸 실내기(RAC A,B) 2대로 이루어저 있어서, 실내의 크기에 맞는 실내기를 설치하여 최적의 냉방을 할 수 있게 되어 있다.The plurality of indoor units connected to the outdoor unit is composed of one package indoor unit (PAC) capable of cooling a large space such as a floor and two room indoor units (RAC A, B) capable of cooling a small space of a room. Optimum cooling is possible by installing indoor unit suitable for indoor size.

한편, 상기 실외기의 응축기(3)와 수액기(1)는 각각 실내기(PAC,RAC A,B)의 증발기와 연결관으로 연결되어 순환하는 냉매싸이클을 이루며, 상기 응축기와 증발기를 연결하는 연결관에는 제어장치에 의해 제어되는 솔레노이드 밸브가 다수개 설치되어 있어서, 상기 3대의 실내기의 작동에 따라 냉매를 제어하여 알맞게 공급한다.On the other hand, the condenser (3) and the receiver (1) of the outdoor unit is connected to the evaporator and connecting pipe of the indoor unit (PAC, RAC A, B), respectively, to form a refrigerant cycle circulating, the connecting pipe connecting the condenser and the evaporator There are provided a plurality of solenoid valves controlled by the control device, the refrigerant is controlled and supplied according to the operation of the three indoor units.

즉, 상기 응축기(3)와 패키지 실내기(PAC)를 연결하는 연결관에는 관을 개폐하는 제1솔레노이드 밸브(SV1)와 냉매를 감압하여 저온저압으로 변화시키는 제1모세관(C1)이 구비되어 있으며, 상기 연결관에는 제1솔레노이드 밸브(SV1) 전단에서 분기하여 후단으로 연결되는 제1바이패스관(BP1)이 형성되어 있다.That is, the connection pipe connecting the condenser 3 and the package indoor unit (PAC) is provided with a first solenoid valve (SV1) for opening and closing the tube and a first capillary tube (C1) for reducing the refrigerant to a low temperature and low pressure. The connection pipe is formed with a first bypass pipe BP1 branched from the front end of the first solenoid valve SV1 and connected to the rear end.

이때, 상기 제1바이패스관(BP1)에는 관을 개폐하는 제2솔레노이드 밸브(SV2)와 냉매를 감압하여 속도를 조절하는 제2모세관(C2)이 구비되어 있어서, 상기 실내기(PAC,RAC A,B)를 전부다 가동시에 각 실내기에 냉매가 알맞게 흐르게 한다.At this time, the first bypass pipe (BP1) is provided with a second solenoid valve (SV2) for opening and closing the pipe and a second capillary pipe (C2) for controlling the speed by reducing the pressure of the refrigerant, the indoor unit (PAC, RAC A When all of B and B are operated, the refrigerant flows properly to each indoor unit.

상기 응축기(3)와 두대의 룸 실내기(RAC A,B)를 연결하는 연결관에는 냉매를 분배하는 냉매분배부(4)가 형성되며, 이 분배부 후단에는 제5/6솔레노이드 밸브(SV5)(SV6)와 제5/6모세관(C5)(C6)을 구비한 2개의 분기관이 분기하여 상기 각 룸 실내기(RAC A,B)에 병렬로 연결된다.In the connection pipe connecting the condenser 3 and the two room indoor units RAC A and B, a refrigerant distribution unit 4 for distributing the refrigerant is formed, and a fifth / 6 solenoid valve SV5 is disposed at the rear end of the distribution unit. Two branch pipes having SV6 and fifth / 6 capillary tubes C5 and C6 are branched and connected in parallel to the respective room indoor units RAC A and B.

상기 냉매분배부(4)는 제3솔레노이드 밸브(SV3)를 구비한 관과 제4솔레노이드 밸브(SV4)와 제4모세관(C4)을 구비한 관과 제3모세관(C3)을 구비한 관이 병렬로 이어저 있어서, 룸 에어컨의 작동에 맞게 냉매의 감압을 조절할 수 있게 되어 있다.The refrigerant distribution unit 4 includes a tube having a third solenoid valve SV3, a tube having a fourth solenoid valve SV4 and a fourth capillary tube C4, and a tube having a third capillary tube C3. In parallel, the decompression of the refrigerant can be adjusted to suit the operation of the room air conditioner.

또한, 상기 응축기(3)에서 분기하여 수액기에 연결된 제2바이패스관(BP2)에는 관을 개폐하는 제7솔레노이드 밸브(SV7)와 액체냉매를 기체냉매로 변화시키는 제7모세관(C7)이 구비되어 있어서, 룸 실내기(RAC A,B)의 단독 운전시에 응축기(3)에서 토출된 냉매중 일부를 수액기(1)로 보내어 룸실내기(RAC A,B)에 공급되는 냉매량을 조절하게 되어 있다.In addition, the second bypass pipe BP2 branched from the condenser 3 and connected to the receiver is provided with a seventh solenoid valve SV7 for opening and closing the tube and a seventh capillary tube C7 for converting the liquid refrigerant into gas refrigerant. Since some of the refrigerant discharged from the condenser 3 is sent to the receiver 1 when the room indoor units RAC A and B are operated alone, the amount of refrigerant supplied to the room units RAC A and B is adjusted. have.

따라서, 상기의 각 관에 설치된 솔레노이드 밸브(SV1-SV7)는 실내기(PAC,RAC A,B)의 작동에 따라 제어장치(C)에 의해 제어되어 최적의 냉매를 실내기에 공급하게 되어 있어서, 서로 다른 냉방용량을 가진 실내기를 실외기에 조합하여 설치하여 실내의 크기에 맞는 냉방을 할 수 있게 한다.Therefore, the solenoid valves SV1-SV7 provided in the respective pipes are controlled by the control device C according to the operation of the indoor units PAC, RAC A, B, and supply the optimum refrigerant to the indoor units. The indoor unit with different cooling capacity is installed in combination with the outdoor unit to allow the cooling according to the size of the room.

상기와 같은 본 발명의 멀티 에어컨의 냉매 순환장치는 다음과 같이 작동한다.The refrigerant circulation device of the multi-air conditioner of the present invention as described above operates as follows.

표1은 각 실내기가 단독으로 운전시에 솔레노이드 밸브가 제어장치(C)에 의해 개폐된 것을 나타낸 것이다.Table 1 shows that the solenoid valve is opened and closed by the controller C when each indoor unit is operated alone.

상기와 같이 패키지 실내기(PAC)를 단독으로 가동시에는 제어장치(C)에 의해 제1솔레노이드 밸브(SV1)를 열어 응축기(3)에서 토출된 냉매중 일부를 제1모세관(C1)에서 통해 감압하여 패키지실내기(PAC)에 공급하며, 냉매의 일부는 제2솔레노이드 밸브(SV2)를 통해 제1/2 모세관(C1/2)에서 감압시켜 냉매의 속도를 줄이며 기화정도를 틀리게하여, 패키지실내기(PAC)의 증발기에서 상기 냉매가 대기와 열교환하여 완전 증발되게 한다.As described above, when the package indoor unit PAC is operated alone, the first solenoid valve SV1 is opened by the control device C to depressurize some of the refrigerant discharged from the condenser 3 through the first capillary tube C1. To the package chamber (PAC), and a portion of the refrigerant is decompressed in the first and second capillary tubes (C1 / 2) through the second solenoid valve (SV2) to reduce the speed of the refrigerant and make the degree of vaporization incorrect. In the evaporator of PAC, the refrigerant exchanges heat with the atmosphere to allow complete evaporation.

룸 실내기(RAC A) 단독 운전시에는 제7솔레노이드 밸브(SV7)를 열어 제2바이패스관(BP2)을 통해 응축기(3)에서 토출된 냉매중 일부를 수액기(1)로 보내어 냉매량을 실내기 한대에 맞게 조절하며, 냉매분배부(4)의 제3솔레노이드 밸브(SV3)와 분기관의 제5솔레노이드 밸브(SV5)를 열어서 냉매가 공급되게 한다.When the room indoor unit RAC A is operated alone, the seventh solenoid valve SV7 is opened to send some of the refrigerant discharged from the condenser 3 to the receiver 1 through the second bypass pipe BP2 to transfer the amount of refrigerant to the indoor unit. It is adjusted to one, and the refrigerant is supplied by opening the third solenoid valve SV3 of the refrigerant distribution unit 4 and the fifth solenoid valve SV5 of the branch pipe.

이때, 상기 제2바이패스관(BP2)에 유입된 냉매는 제7모세관(C7)을 통과하면서 기체 냉매로 변화하여 수액기(3)에 유입되며, 냉매분배부(4)에 유입된 냉매중 일부는 제3모세관(C3)을 통해 일차 감압되어 분기관을 통해 실내기(RAC A)에 유입된다.At this time, the refrigerant introduced into the second bypass pipe BP2 changes into gaseous refrigerant while passing through the seventh capillary tube C7 and flows into the receiver 3, and among the refrigerant introduced into the refrigerant distribution unit 4. Some are first decompressed through the third capillary C3 and flow into the indoor unit RAC A through the branch pipe.

표2는 실내기 두대를 조합하여 운전하는 경우에 제어장치(C)에 의해 제어되는 솔레노이드 밸브의 상태를 나타낸 것이다.Table 2 shows the state of the solenoid valve controlled by the controller C when the two indoor units are operated in combination.

상기와 같이 제2바이패스관(BP2)의 제7솔레노이드 밸브(SV7)를 닫아 응축기(3)에서 토출된 냉매가 전부다 실내기에 유입되게 한다.As described above, the seventh solenoid valve SV7 of the second bypass pipe BP2 is closed to allow all of the refrigerant discharged from the condenser 3 to flow into the indoor unit.

이때, 패키지 실내기(PAC)와 룸실내기(RAC B)를 동시에 운전시에는 제1/2솔레노이드밸브(SV1/2)를 열어 패키지 실내기(PAC)의 단독 운전시와 같이 냉매를 공급하며, 룸실내기(RAC B)에 유입되는 냉매는 냉매분배부의 제3모세관(C3)을 통과하여 일차감압후 분기관의 제5모세관(C5)를 거쳐 유입된다.At this time, when operating the package indoor unit (PAC) and the room indoor unit (RAC B) at the same time, the 1/2 solenoid valve (SV1 / 2) is opened to supply the coolant as in the single operation of the package indoor unit (PAC), and the room interior The refrigerant flowing into the RAC B flows through the third capillary tube C3 of the refrigerant distribution unit and passes through the fifth capillary tube C5 of the branch pipe after the primary pressure reduction.

룸실내기(RAC A,B) 두 대를 동시에 가동시에는 제4솔레노이드 밸브(SV4)를 열어 제4모세관(C4)을 통해 일차감압후, 각 분기관의 제5/6모세관(C5/6)을 통해 실내기에 유입되게 하며, 일부는 제3모세관(C3)을 통해 각 분기관에 유입되게하여 냉매의 감압을 조정하여 각 룸 실내기의 증발기에서 대기와 열교환하여 완전 증발이 이루어 지게 한다.When operating two room chambers (RAC A and B) simultaneously, open the fourth solenoid valve (SV4), and after the first pressure reduction through the fourth capillary tube (C4), the fifth and six capillary tubes (C5 / 6) of each branch pipe. Through a third capillary tube (C3) to be introduced into each branch pipe to be introduced into each branch pipe to adjust the decompression of the refrigerant to exchange heat with the atmosphere in the evaporator of each room to ensure complete evaporation.

표3은 세대의 실내기가 동시에 가동시에 제어장치(C)에 의해 솔레노이드 밸브가 개폐된 것을 나타낸 것이다.Table 3 shows that the solenoid valve is opened and closed by the control device C when the indoor unit of the generation operates simultaneously.

실내기 세대가 동시에 가동시에는 제2솔레노이드 밸브(SV2)를 열어 대용량의 패키지 에어컨(PAC)에 유입되는 냉매의 속도를 줄여주어 작은 용량의 룸실내기(RAC A,B)에 두대에 냉매가 고루게 유입되게 한다.When indoor unit generation is operating at the same time, open the second solenoid valve (SV2) to reduce the speed of refrigerant flowing into the large capacity package air conditioner (PAC), so that the refrigerant is evenly distributed to the two rooms of the small capacity room (RAC A, B) Allow inflow

상기와 같은 본 발명은 실외기에서 토출되는 냉매를 알맞게 분배하여 냉방용량이 다른 세대의 실내기에 공급함으로써, 각기 다른 크기의 냉방용량을 지닌 실내기를 실외기에 연결하여 실내의 크기에 맞는 냉방을 할 수 있게하여 냉방효율을 높이며, 각 실내기의 냉각성능도 향상시키는 효과가 있다.The present invention as described above by properly distributing the refrigerant discharged from the outdoor unit to supply to the indoor unit of the different generation of cooling capacity, by connecting the indoor unit having a different cooling capacity of different sizes to the outdoor unit to enable the cooling according to the size of the room By increasing the cooling efficiency, there is an effect to improve the cooling performance of each indoor unit.

Claims (1)

수액기(1)와 압축기(2)와 응축기(3)를 구비한 실외기에 냉방용량이 큰 패키지 실내기(PAC)와 냉방용량이 작은 복수의 룸실내기(RAC A,B)를 각각 연결하여 순환하는 냉매 싸이클을 형성한 멀티 에어컨에 있어서, 상기 응축기(3)와 패키지 실내기(PAC)의 증발기를 연결하는 연결관에는 제1솔레노이드 밸브(SV1)와 제1모세관(C1)을 설치하며, 상기 연결관의 제1솔레노이드 밸브(SV1) 전단에서 분기하여 후단으로 연결되는 제1바이패스관(BP1)에는 제2솔레노이드 밸브(SV2)와 조절하는 제2모세관(C2)을 설치하며, 상기 응축기(3)와 복수의 룸 실내기(RAC A,B)의 증발기를 연결하는 연결관에는 제3솔레노이드 밸브(SV3)를 구비한 관과 제4솔레노이드 밸브(SV4)와 제4모세관(C4)을 구비한 관과 제3모세관(C3)을 구비한 관을 병렬로 연결한 냉매분배부(4)를 형성하며, 상기 냉매분배부(4) 후단에는 제5/6솔레노이드 밸브(SV5)(SV6)와 제5/6모세관(C5)(C6)을 각각 구비한 복수의 분기관이 분기되어 상기 각 룸실내기(RAC A,B)와 연결되며, 상기 응축기(3)에서 분기하여 수액기(1)에 연결된 제2바이패스관(BP 2)에는 제7솔레노이드 밸브(SV7)와 제7모세관(C7)을 설치하며, 상기 실내기(PAC, RAC A/B)의 선택적 작동을 위해 솔레노이드 밸브(SV1-SV7)를 선택적으로 개폐하는 제어장치(C)를 포함하여 구성된 것을 특징으로 하는 멀티 에어컨의 냉매 순환장치.The outdoor unit equipped with the receiver 1, the compressor 2, and the condenser 3 connects the package indoor unit PAC having a large cooling capacity and the plurality of room interiors RAC A, B having a small cooling capacity to circulate. In the multi-air conditioner having a refrigerant cycle, a first solenoid valve SV1 and a first capillary tube C1 are installed at a connection pipe connecting the condenser 3 and the evaporator of the package indoor unit PAC. The first bypass pipe BP1 branched from the front end of the first solenoid valve SV1 and connected to the rear end of the first solenoid valve SV1 is provided with a second capillary tube C2 for adjusting with the second solenoid valve SV2, and the condenser 3 And a pipe having a third solenoid valve SV3, a fourth solenoid valve SV4 and a fourth capillary tube C4, for connecting the evaporators of the plurality of room indoor units RAC A and B. A refrigerant distribution unit 4 is formed by connecting a pipe having a third capillary tube C3 in parallel, and the refrigerant distribution unit 4 is formed. A plurality of branch pipes each having a fifth and sixth solenoid valve SV5 (SV6) and a fifth and sixth capillary tubes C5 and C6 are branched to be connected to the respective room interior units RAC A and B. And a seventh solenoid valve SV7 and a seventh capillary tube C7 are installed in the second bypass pipe BP 2 branched from the condenser 3 and connected to the receiver 1, and the indoor units PAC and RAC. Refrigerant circulation device of the multi-air conditioner comprising a control unit (C) for selectively opening and closing the solenoid valve (SV1-SV7) for the selective operation of A / B).
KR1019960010296A 1996-04-04 1996-04-04 A cycling device of coolant in multi-airconditioner KR0159897B1 (en)

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