KR100215038B1 - Indoor device connection structure of multi-airconditioner - Google Patents
Indoor device connection structure of multi-airconditioner Download PDFInfo
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- KR100215038B1 KR100215038B1 KR1019960032199A KR19960032199A KR100215038B1 KR 100215038 B1 KR100215038 B1 KR 100215038B1 KR 1019960032199 A KR1019960032199 A KR 1019960032199A KR 19960032199 A KR19960032199 A KR 19960032199A KR 100215038 B1 KR100215038 B1 KR 100215038B1
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- refrigerant
- indoor unit
- indoor
- way valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
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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
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0232—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses
Abstract
본 발명은 멀티에어컨용 실내기의 연결구조에 관한 것으로, 실외기에서 공급되는 냉매가 냉매관을 통하여 다수의 실내기에 공급 및 순환되도록 구성된 멀티에어컨에 있어서, 추가되는 다수의 실내기가 이미 설치된 실내기에 대해 냉매의 순환이 필요한 실내기에만 선택적으로 공급할 수 있도록 3방향밸브를 매개로 직렬연결된 구조로, 실내기의 추가설치시 이미 설치된 실내기에 대해 병렬식으로 접속되는 것에 비교해서 배관길이가 단축됨은 물론, 실내기의 설치가 용이하도록 된 것이다.The present invention relates to a connection structure of an indoor unit for a multi-air conditioner. In a multi-air conditioner configured to supply and circulate a refrigerant supplied from an outdoor unit to a plurality of indoor units through a refrigerant pipe, a refrigerant for an indoor unit in which a plurality of indoor units are already installed is installed. In order to selectively supply only indoor units that require circulation, the 3-way valves are connected in series.In addition, when the indoor unit is additionally installed, the piping length is shortened as compared to the parallel connection to the indoor units already installed. It is intended to be easy.
Description
제 1 도는 종래기술에 따른 실내기의 연결구조를 설명하는 냉매제어구성도,1 is a refrigerant control block diagram illustrating a connection structure of an indoor unit according to the prior art;
제 2 도는 본 발명에 따른 실내기의 연결구조를 설명하는 냉매제어구성도이다.2 is a refrigerant control configuration diagram illustrating a connection structure of an indoor unit according to the present invention.
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
1a, 1b, 1c, … : 냉매관 2a, 2b, 2c, … : 전자식팽창밸브1a, 1b, 1c,... : Refrigerant tubes 2a, 2b, 2c,... : Electronic Expansion Valve
3a, 3b, 3c, … : 3방향밸브 11 : 압축기3a, 3b, 3c,... : 3-way valve 11: Compressor
12 : 실외측열교환기 13a, 13b, 13c, … : 실내측열교환기12: outdoor side heat exchanger 13a, 13b, 13c,... : Indoor heat exchanger
15,18 : 2방향밸브 A : 실외기15,18 2-way valve A: outdoor unit
B, C, D, … : 실내기B, C, D,... Indoor unit
본 발명은 멀티에어컨용 실내기의 연결구조에 관한 것으로, 특히 실내기의 추가설치시 다른 실내기에 대해 병렬식으로 접속되는 것에 비교해서 배판길이가 단축됨은 물론, 실내기의 설치가 용이하도록 된 멀티에어컨용 실내기의 연결 구조에 관한 것이다.The present invention relates to a connection structure of an indoor unit for a multi-air conditioner, and in particular, when additional installation of the indoor unit, the length of the board is shortened as compared with being connected in parallel to other indoor units, as well as the indoor unit for the multi-air conditioner to facilitate the installation of the indoor unit. Of the connection structure.
일반적으로 실외기는, 압축기와 실외측열교환기 및 냉매관에 연결되는 밸브등으로 이루어지고, 실내기는 실내측열교환기와 모세관 또는 팽창밸브 및 밸브 등으로 이루어져 있는 바, 에어컨은 압축기에 의해 고온고압의 기체상태로 압축된 냉매가 실외측열교환기로 토출되면 실외측열교환기에서는 고온고압으로 압축된 기체냉매를 냉각팬에 의해 송풍되는 공기로 열교환하여 냉매를 강제냉각시켜 액화한다.In general, the outdoor unit is composed of a compressor and an outdoor side heat exchanger and a valve connected to a refrigerant pipe, and the indoor unit is composed of an indoor side heat exchanger and a capillary tube or an expansion valve and a valve. When the refrigerant compressed in the state is discharged to the outdoor side heat exchanger, the outdoor side heat exchanger exchanges the gas refrigerant compressed to high temperature and high pressure with air blown by a cooling fan to forcibly cool the refrigerant to liquefy.
이어서 상기 실외측열교환기에서 약 35℃-40℃로 온도가 저하된 고압의 액상냉매는 증발압력까지 팽창시키는 모세관을 통과하면서 저온저압의 기체와 액체로 공존하는 냉매로 되어 실내측열교환기에 유입된다.Subsequently, the high-pressure liquid refrigerant whose temperature is reduced to about 35 ° C.-40 ° C. in the outdoor side heat exchanger is introduced into the indoor heat exchanger as a refrigerant that coexists with the low-temperature low-pressure gas and liquid while passing through a capillary tube that expands to the evaporation pressure. .
한편 상기 실내측열교환기로 유입된 냉매는 실내측열교환기를 통과하면서 기화할 때 실내팬에 의해 송풍되는 공기에서 열을 빼앗아 실내공기를 냉각시킨 다음, 그 냉각된 공기(냉풍)를 실내로 토출해서 냉방을 행하고, 상기 실내측열교환기에서 상변화된 저온저압의 기체냉매는 다시 압축기에 의해 흡입되어 반복순환하는 냉동싸이클을 형성한다.Meanwhile, the refrigerant introduced into the indoor heat exchanger takes heat from the air blown by the indoor fan when evaporated while passing through the indoor heat exchanger, cools the indoor air, and then discharges the cooled air (cold air) into the room to cool it. The low temperature and low pressure gas refrigerant, which is changed in phase in the indoor side heat exchanger, is again sucked by the compressor to form a recirculating refrigeration cycle.
그런데 이와같은 냉동싸이클에 의해 냉방을 수행하는 공기조화기는 하나의 실외기로 하나의 실내기를 제어하여 개별냉방을 수행하기 때문에 여러방을 동시에 냉방시킬 수 없는 결점이 있음은 물론, 다수개의 실내기로 여러방을 냉방할 경우에는 다수개의 실외기를 설치해야 하므로 설치공간을 확보하기가 곤란하고 미관도 좋지 않은 결점이 있었다.However, the air conditioner that performs cooling by such a refrigeration cycle has the disadvantage that it is not possible to cool several rooms at the same time because it controls individual indoor units by one outdoor unit to perform individual cooling, and many rooms with multiple indoor units. In the case of cooling, it is difficult to secure the installation space because of the need to install a plurality of outdoor units, and the aesthetics were also poor.
이러한 제반결점을 해소하기 위하여 종래에도 제 1 도에 도시된 것과 같은 냉매순환을 하도록 된 멀티에어콘이 제안되어 있는 바, 실외기(A)에서 공급되는 냉매가 다수개의 냉매관을 통하여 다수개의 실내기(B, C, D)에 공급 및 순환되도록 연결되되, 상기 실내기(B, C, D)들은 각각 병렬로 연결되어 있다.In order to solve the above-mentioned shortcomings, a multi-air cone has been proposed, which is conventionally designed to circulate refrigerant as shown in FIG. 1, and a plurality of indoor units (B) are supplied with refrigerant supplied from the outdoor unit (A) through a plurality of refrigerant tubes. , C, D) is connected to be supplied and circulated, the indoor units (B, C, D) are each connected in parallel.
여기서 상기 실외기(A)는, 압축기(11)에 실외측열교환기(12)가 연결되고, 이 실외측열교환기(12)에 실내기(B, C, D)와 같은 갯수로 분기시킬 수 있도록 된 분배수단인 솔레노이드밸브(14a, 14b, 14c)가 연결되며, 이 각각의 솔레노이드밸브(14a, 14b, 14c)에 2방향밸브(15a, 15b, 15c)가 연결됨과 더불어, 상기 압축기(11)의 다른 쪽에는 상기 실내기(B, C, D)를 통과한 냉매가 압축기(11)로 흡입되도록 안내하는 2방향밸브 (18a, 18b, 18c)가 설치되어 있다.Here, the outdoor unit (A), the outdoor side heat exchanger 12 is connected to the compressor 11, and the outdoor side heat exchanger 12 is able to branch to the same number as the indoor units (B, C, D) Solenoid valves 14a, 14b, and 14c serving as distribution means are connected, and two-way valves 15a, 15b, and 15c are connected to each of the solenoid valves 14a, 14b, and 14c. On the other side, two-way valves 18a, 18b, and 18c for guiding the refrigerant passing through the indoor units B, C, and D are sucked into the compressor 11 are provided.
한편 실내기는, 분배수단의 솔레노이드밸브(14a, 14b, 14c)와 연결된 냉매관(16a, 16b, 16c)을 매개로 온도식팽창밸브(17a, 17b, 17c)가 각각 직렬연결됨과 더불어, 이 온도식팽창밸브(17a, 17b, 17c)와 다수개의 실내측열교환기(13a, 13b, 13c)가 각각 직렬로 연결된 구조로 되어 있다.On the other hand, the indoor unit is connected to the solenoid valves 14a, 14b, and 14c of the distribution means, and the temperature expansion valves 17a, 17b, and 17c are connected in series through the refrigerant pipes 16a, 16b, and 16c, respectively. The expansion valves 17a, 17b, 17c and the plurality of indoor side heat exchangers 13a, 13b, 13c are connected in series.
이러한 멀티에어컨의 냉매제어는, 압축기(11)에 의해 고온고압의 기체상태로 압축된 냉매가 1개의 실외측열교환기(12)에 유입되면 상기 실외측열교환기(12)에서는 고온고압으로 압축된 기체냉매를 냉각팬에 의해 송풍되는 공기로 냉매를 냉각시켜 액화시키게 되고, 상기 실외기(12)에서 액화된 저온고압의 액상 냉매가 실내측열교환기(13a, 13b, 13c)와 같은 갯수이면서 해당 실내측열교환기(13a, 13b, 13c)와 연동하여 개폐되는 솔레노이드밸브(14a, 14b, 14c)와 2방향밸브(15a, 15b, 15c) 및 냉매관(16a, 16b, 16c)을 매개로 분리됨과 동시에 냉매의 유입을 제어함은 물론 양을 조절할 수 있는 온도식팽창밸브(17a, 17b, 17c)를 통과하면서 상변화되어 실내측열교환기(13a, 13b, 13c)에 유입되며, 이 실내측열교환기(13a, 13b, 13c)를 통과하는 냉매가 증발하여 기화할 때 실내팬에 의해 송풍되는공기에서 열을 빼앗아 실내공기를 냉각시킨 다음 그 냉각된 공기를 실내로 토출시켜 냉방을 행하고, 상기 실내측열교환기(13a, 13b, 13c)에서 상변화된 저온저압의 기체냉매는 유입수단인 2방향밸브(18a, 18b, 18c)를 통해서 다시 압축기(11)가 흡입하게 되어 반복순환하는 냉동싸이클을 형성한다.In the refrigerant control of the multi-air conditioner, when the refrigerant compressed in the gas state of high temperature and high pressure by the compressor 11 flows into one outdoor side heat exchanger 12, the outdoor side heat exchanger 12 is compressed to high temperature and high pressure. The gas refrigerant is liquefied by cooling the refrigerant with air blown by a cooling fan, and the low temperature and high pressure liquid refrigerant liquefied in the outdoor unit 12 is the same number as the indoor side heat exchangers 13a, 13b, and 13c, and the corresponding indoor. The solenoid valves 14a, 14b, 14c, which are opened and closed in conjunction with the heat exchangers 13a, 13b, 13c, and the two-way valves 15a, 15b, 15c, and the refrigerant pipes 16a, 16b, 16c are separated from each other. At the same time, the phase change occurs while passing through the thermal expansion valves 17a, 17b, and 17c, which can control the inflow of refrigerant as well as the amount thereof, and enter the indoor side heat exchangers 13a, 13b, and 13c. When the refrigerant passing through the groups 13a, 13b, 13c evaporates and vaporizes, The air is taken from the air to be cooled to cool the indoor air, and then the cooled air is discharged to the room for cooling. The low-temperature low-pressure gas refrigerant changed in the indoor side heat exchanger (13a, 13b, 13c) is an inflow means. The compressor 11 is sucked back through the two-way valves 18a, 18b, and 18c to form a refrigeration cycle that repeats circulation.
그러나 이러한 멀티에어콘용 실내기의 연결구조는, 상기 실내기 (B, C, D)들간에 병렬로 접속되어 있으므로 별도의 실내기를 추가할 때 마다 별도의 솔레노이드밸브와 2방향밸브를 추가해야함은 물론, 추가설치시 배관의 길이가 많이 소요되는 결점이 있었다.However, since the connection structure of the indoor unit for the multi-air conditioner is connected in parallel between the indoor units (B, C, D), it is necessary to add a separate solenoid valve and a two-way valve each time a separate indoor unit is added. There was a drawback in that the length of the pipe was large.
이에 본 발명은 상기와 같은 결점을 해결하기 위하여 안출된 것으로, 실내기의 추가설치시에 다른 실내기로부터 3방향밸브를 매개로 직렬로 연결되는 구조로 되어, 실내기의 추가설치시 다른 실내기에 대해 병렬로 접속되는 것과 비교해서 배관길이가 단축됨은 물론, 실내기의 설치가 용이하도록 된 멀티에어컨용 실내측열 교환기의 연결구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above drawbacks, it is a structure that is connected in series via a three-way valve from the other indoor unit during the additional installation of the indoor unit, in parallel to the other indoor unit in the additional installation of the indoor unit It is an object of the present invention to provide a connection structure of an indoor side heat exchanger for a multi-air conditioner, in which a pipe length is shortened as well as an indoor unit can be easily installed as compared with being connected.
상기와 같은 목적을 달성하기 위한 본 발명은, 실외기에서 공급되는 냉매가 냉매관을 통하여 다수의 실내기에 공급 및 순환되도록 구성된 멀티에어컨에 있어서, 추가되는 다수의 실내기가 이미 설치된 실내기에 대해 냉매의 순환이 필요한 실내기에만 선택적으로 공급할 수 있도록 3방향밸브를 매개로 직렬연결된 구조로 되어 있다.In order to achieve the above object, the present invention provides a multi-air conditioner configured to supply and circulate a refrigerant supplied from an outdoor unit to a plurality of indoor units through a refrigerant pipe. In order to selectively supply only the necessary indoor unit, it has a structure connected in series via a 3-way valve.
이하 본 발명의 실시예에 관하여 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.
제 2 도는 본 발명에 따른 실내기의 연결구조를 설명하는 냉매제어구성도로서, 종래기술을 설명하는 제 1 도와 동일한 부위에는 동일한 참조부호를 붙이면서 그 설명은 생략한다.2 is a refrigerant control configuration diagram for explaining a connection structure of an indoor unit according to the present invention, the same reference numerals are attached to the same parts as the first diagram for explaining the prior art, and the description thereof will be omitted.
본 발명에 따른 멀티에어컨은, 실외기(A)가 다수개의 실내기 (B, C, …)와 냉매관(1a, 1b, …)을 매개로 냉매순환이 되도록 연결되는 멀티에어컨에 있어서, 추가되는 다수의 실내기(D, E, …)가 이미 설치된 실내기(B, C, …)에 대해 냉매의 순환이 필요한 실내기에만 선택적으로 공급할 수 있도록 3방향밸브(3a, 3b, …)를 매개로 직렬연결된 구조로 되어 있다.In the multi-air conditioner according to the present invention, in the multi-air conditioner in which the outdoor unit (A) is connected to the refrigerant circulation via the plurality of indoor units (B, C, ...) and the refrigerant pipes (1a, 1b, ...), Structure connected in series via three-way valves (3a, 3b, ...) so that the indoor units (D, E, ...) of the unit can be selectively supplied only to the indoor units requiring circulation of the refrigerant to the indoor units (B, C, ...) already installed. It is.
여기서 멀티에어컨의 실외기를 좀더 상세히 설명하면, 고온고압의 기체상태로 압축된 기체냉매를 이송시킬 수 있도록 설치된 압축기(11)와, 이 압축기(11)에 연결된 실외측열교환기(12)와, 이 실외측열교환기(12)의 출구쪽과 압축기의 흡입구쪽에 연결된 2방향밸브(15, 18)등으로 이루어져 있다.Herein, the outdoor unit of the multi-air conditioner will be described in more detail. The compressor 11 installed to transfer the compressed gas refrigerant in the high-temperature, high-pressure gas state, the outdoor side heat exchanger 12 connected to the compressor 11, and And two-way valves 15 and 18 connected to the outlet side of the outdoor side heat exchanger 12 and the inlet side of the compressor.
그리고 멀티에어콘의 실내기(B, C, D, …)는, 상기 2방향밸브(15)에 냉매관(1a, 1b, …)을 매개로 유입된 냉매를 제어함은 물론 통과양을 조절할 수 있도록된 전자식팽창밸브(2a, 2b, …)와, 이 전자식팽창밸브 (2a, 2b, …)을 매개로 연결되는 다수개의 실내측열교환기(13a,13b, …) 등으로 이루어져 있다.And the indoor unit (B, C, D, ...) of the air conditioner, so as to control the amount of passage as well as to control the refrigerant flowing into the two-way valve 15 through the refrigerant pipe (1a, 1b, ...). And the plurality of indoor side heat exchangers 13a, 13b, ... which are connected via the electronic expansion valves 2a, 2b, ..., and the electronic expansion valves 2a, 2b, ..., respectively.
또한 상기 전자식팽창밸브(2a, 2b, 2c, …)은, 냉매유로를 전폐/전개가 가능하며 실내기와 결합되어 실내기의 입출구온도차에 의한 수식값을 실내기마이컴에 입력하여 마이컴제어에 의한 냉매량을 조절시켜 감압팽창케하는 것이다.In addition, the electronic expansion valve (2a, 2b, 2c, ...), it is possible to open / close the refrigerant flow path, combined with the indoor unit to adjust the amount of refrigerant by the microcomputer control by inputting the formula value of the indoor unit microcomputer to the indoor unit microcomputer To expand under reduced pressure.
한편 이미 설치된 실내기(C)에 추가로 설치되는 실내기(D, E, D, …)가 직렬연결되는 상태를 좀더 상세히 설명하면, 이미 설치된 실내기의 냉매유입측에는 냉매가 유입되거나 바이패스되도록 3방향밸브(3a)가 설치됨과 더불어 냉매출구측에는 냉매가 토출되거나 추가되는 실내기의 냉매출구측에서 토출된 냉매가 바이패스만되도록 3방향밸브(3b)가 설치된다.Meanwhile, when the indoor units (D, E, D, ...), which are additionally installed in the indoor unit (C) already installed, are described in detail, the three-way valve may be configured such that refrigerant flows into or bypasses the refrigerant inlet of the indoor unit. The three-way valve 3b is provided at the refrigerant outlet side and the refrigerant discharged at the refrigerant outlet side of the indoor unit to which the refrigerant is discharged or added is bypassed.
그리고 상기 추가되는 각각의 실내기는, 이미 설치된 실내기의 냉매유입측의 3방향밸브(3a)로부터 바이패스된 냉매가 공급되어 순환되도록 직렬로 추가되는 각각의 실내기의 냉매유입측에 설치되는 3방향밸브(3c, 3e, …)를 매개로 냉매가 유입되거나 바이패스되도록 설치된다.Each of the added indoor units is a three-way valve installed on the refrigerant inlet side of each indoor unit which is added in series so that the bypassed refrigerant is supplied and circulated from the three-way valve 3a on the refrigerant inlet side of the indoor unit already installed. The refrigerant is introduced or bypassed through (3c, 3e, ...).
또한 상기 추가되는 각각의 실내기의 냉매유입측에 설치된 3방향밸브를 매개로 유입된 냉매가 순환되어 토출되도록 냉매출구측에 설치된 3방향밸브(3d, 3f, …)는 추가되는 실내기의 냉매출구측에서 냉매가 토출되거나 이후 추가되는 실내기의 냉매출구측에서 토출된 냉매가 바이패스만되도록 설치된다.In addition, the three-way valves (3d, 3f, ...) installed at the refrigerant outlet side is circulated through the three-way valve installed on the refrigerant inlet side of each of the indoor unit is added to the refrigerant outlet side of the added indoor unit The refrigerant is discharged from the or is installed so that the refrigerant discharged from the refrigerant outlet side of the indoor unit to be added only after the bypass.
한편 상기 추가되는 각각의 실내기중 최후에 설치되는 실내기의 냉매유입 측과 냉매출구측은 기존에 설치된 실내기의 냉매유입측의 3방향밸브(3a, 3c, 3e, …)와 냉매출구측의 3방향밸브(3b, 3d, 3f, …)의 바이패스측에 연통되도록 직접연결할 수도 있다.On the other hand, the refrigerant inlet side and the refrigerant outlet side of the indoor unit, which is installed last of each of the added indoor unit, the three-way valve (3a, 3c, 3e, ...) and the three-way valve on the refrigerant outlet side of the existing indoor unit It is also possible to connect directly so as to communicate with the bypass side of (3b, 3d, 3f, ...).
이와 같이 구성된 본 발명의 실시예에 의한 실내기의 운전과 그에 따른 효과를 다음에 설명한다.The operation of the indoor unit and its effects according to the embodiment of the present invention configured as described above will be described next.
먼저 1실운전시에는 운전하려고 하는 실내기(A, B, C, …)의 입구측 전자식팽창밸브(2a, 2b, 2c, …)을 열고 나머지는 닫게되면 열려있는 전자식팽창밸브(2a, 2b, 2c, …)에서 감압팽창된 다음 작동하려고 하는 실내측열교환기(13a, 13b, 13c, …)에서 증발되어 압축기(11)로 재순환된다.First, in operation of the first room, the electronic expansion valves 2a, 2b, 2c, ... of the inlet side of the indoor units A, B, C, ... which are to be operated are opened, and the remaining electronic expansion valves 2a, 2b, 2c,... Are expanded under reduced pressure and then evaporated in the indoor side heat exchangers 13a, 13b, 13c,... Which are to be operated and recycled to the compressor 11.
이때 운전하지 않는 실내기의 전자식팽창밸브(2a, 2b, 2c, …)를 전페시켜서 작동되지 않는 실내기에 냉매가 순환되지 않도록 한다.At this time, the electronic expansion valves (2a, 2b, 2c, ...) of the indoor unit that is not operated are all shut down so that the refrigerant is not circulated to the indoor unit that is not operated.
한편 다실운전시에는 상기 냉매관(1a, 1b, …)을 통과한 냉매를 전자식팽창밸브(2a, 2b, 2c, 2d, …)에서 그 양을 조절하여 각각의 실내측열교환기(13a, 13b, 13c, 13d, …)에 적정량이 분배되도록 한다.On the other hand, in the multi-room operation, the amount of refrigerant passing through the refrigerant pipes 1a, 1b, ... is adjusted by the electronic expansion valves 2a, 2b, 2c, 2d, ..., and the respective indoor side heat exchangers 13a, 13b. , 13c, 13d,...).
여기서 상기 압축기(11)는 인버터용으로서 최대주파수로 운전하며 다실운전에 따른 능력저하를 방지한다.Here, the compressor 11 operates at the maximum frequency for the inverter and prevents the capacity decrease due to the multi-room operation.
이상 설명한 바와 같이 본 발명예 의하면, 이미 설치된 실내기의 구성에서 다실의 실내기를 연결할 때 상기 냉매관(1a, 1b, …)에 3방향밸브(3a, 3b, …)를 매개로 직렬연결하여, 실내기의 추가설치시 이미 설치된 실내기에 대해 병렬식으로 접속되는 것에 비교해서 배관길이가 단축됨은 물론, 실내기의 설치가 용이하게 되는 효과가 있다.As described above, according to the embodiment of the present invention, when connecting the indoor unit of the tea room in the configuration of the indoor unit already installed, the indoor unit is connected in series with the three-way valves 3a, 3b, ... to the refrigerant pipes 1a, 1b, ... In addition, the length of the pipe is shortened as well as the indoor unit can be easily installed as compared with the parallel connection to the indoor unit already installed.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960032199A KR100215038B1 (en) | 1996-08-01 | 1996-08-01 | Indoor device connection structure of multi-airconditioner |
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| KR1019960032199A KR100215038B1 (en) | 1996-08-01 | 1996-08-01 | Indoor device connection structure of multi-airconditioner |
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| KR100412402B1 (en) * | 2001-06-21 | 2003-12-31 | 위니아만도 주식회사 | Structure for connecting refrigerant pipe of multi-airconditioner |
| KR101356348B1 (en) * | 2007-08-30 | 2014-01-27 | 엘지전자 주식회사 | Seperation-type multi air conditioner with condensor for controlling amount of refrigerants |
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