KR0180595B1 - Multi-airconditioner - Google Patents

Multi-airconditioner Download PDF

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Publication number
KR0180595B1
KR0180595B1 KR1019950059627A KR19950059627A KR0180595B1 KR 0180595 B1 KR0180595 B1 KR 0180595B1 KR 1019950059627 A KR1019950059627 A KR 1019950059627A KR 19950059627 A KR19950059627 A KR 19950059627A KR 0180595 B1 KR0180595 B1 KR 0180595B1
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KR
South Korea
Prior art keywords
refrigerant
condenser
evaporator
air conditioner
compressor
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Application number
KR1019950059627A
Other languages
Korean (ko)
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KR970047303A (en
Inventor
김규완
Original Assignee
정몽원
만도기계주식회사
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Application filed by 정몽원, 만도기계주식회사 filed Critical 정몽원
Priority to KR1019950059627A priority Critical patent/KR0180595B1/en
Priority to JP8347462A priority patent/JPH09229500A/en
Priority to US08/773,867 priority patent/US5709097A/en
Priority to CN96114188.3A priority patent/CN1157392A/en
Publication of KR970047303A publication Critical patent/KR970047303A/en
Application granted granted Critical
Publication of KR0180595B1 publication Critical patent/KR0180595B1/en

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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
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
    • 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
    • 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
    • F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

본 발명은 멀티 에어콘을 개시한다. 본 발명은 각각 증발기를 갖는 복수의 실내 유니트와, 응축기를 갖는 하나의 실외 유니트와 실내 유니트의 증발기로부터 실외 유니트의 응축기로 흐르는 냉매의 압력을 균일하게 하는 균압수단을 포합하며, 응축기는 복수의 증발기와 동일 개수의 섹션으로 분할되며, 각 섹션은 복수의 증발기과 각각 일대일로 연결된다. 따라서 구조적으로 간단하여 제조공정이 용이하며, 각 실내 유니트로의 냉매의 흐름을 용이하게 제어할 수 있게 된다.The present invention discloses a multi air conditioner. The present invention includes a plurality of indoor units each having an evaporator, one outdoor unit having a condenser and an equalizing means for equalizing the pressure of the refrigerant flowing from the evaporator of the indoor unit to the condenser of the outdoor unit, wherein the condenser has a plurality of The evaporator is divided into the same number of sections, each section being connected one to one with a plurality of evaporators, respectively. Therefore, the structure is simple and the manufacturing process is easy, and the flow of the refrigerant to each indoor unit can be easily controlled.

Description

멀티 에어콘Multi air conditioner

제1도는 본 발명에 따른 멀티 에어콘의 냉매 흐름도.1 is a flow chart of a refrigerant of a multi-air conditioner according to the present invention.

제2도는 본 발명에 따른 균압수단을 도시하는 단면도.2 is a cross-sectional view showing the equalizing means according to the present invention.

제3도는 본 발명에 따른 균압수단을 도시하는 측면도.3 is a side view showing the equalizing means according to the present invention.

제4도는 본 발명에 따른 멀티 에어콘의 다른 균압수단을 도시하는 단면도.4 is a cross-sectional view showing another equalizing means of the multi-air conditioner according to the present invention.

제5도는 제4도의 A-A 선 단면도.5 is a cross-sectional view taken along the line A-A of FIG.

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

10 : 실내 유니트 11 : 증발기10: indoor unit 11: evaporator

12 : 절환밸브 13 : 온도감지수단12: switching valve 13: temperature sensing means

20 : 실외 유니트 21 : 압축기20: outdoor unit 21: compressor

22 : 절환밸브 23 : 응축기22: switching valve 23: condenser

24 : 팽창밸브 35, 40 : 균압수단24: expansion valve 35, 40: equalization means

32, 42 : 냉매 유입관 33, 44 : 균압격막32, 42: refrigerant inlet pipe 33, 44: pressure equalizing membrane

34, 43 : 냉매 유출관34, 43: refrigerant outlet pipe

본 발명은 1대의 실외 유니트에 복수대의 실내 유니트가 함께 접속되어 사용되는 멀티 에어콘(multi-air conditioner)에 관한 것으로, 보다 상세하게는 각 실내기로의 냉매의 흐름을 용이하게 제어할 수 있도록 한 멀티 에어콘에 관한 것이다.The present invention relates to a multi-air conditioner in which a plurality of indoor units are connected and used together in one outdoor unit. More specifically, the present invention relates to a multi-air conditioner that can easily control the flow of refrigerant to each indoor unit. It's about air conditioning.

일반적으로, 에어콘과 같은 공기조화장치(A AIR CONDITIONER APPLIANCE)는 냉매가 액체에서 기체로 기화(증발)할 때 주변의 공기로부터 열을 흡수함으로써 주변의 공기가 차가와지는 원리를 이용한다.Generally, A AIR CONDITIONER APPLIANCE, such as an air conditioner, uses the principle that the surrounding air cools by absorbing heat from the surrounding air when the refrigerant vaporizes (evaporates) from the liquid into the gas.

통상 에어콘은 하나의 몸체로 구성되는 창문형과, 1대의 실외 유니트 및 복수개의 실내 유니트로 각각 구성된 분리형으로 크게 대별된다.Typically, air conditioners are roughly divided into a window type composed of one body and a separate type composed of one outdoor unit and a plurality of indoor units.

그 중 분리형 에어콘에서 복수개의 실내 유니트는 건물 내부에 설치하고, 1개의 실외 유니트는 별도로 건물 외부에 설치한다. 이처럼, 실내 유니트와 실외 유니트를 분리하여 설치할 수 있기 때문에 건물 내부와 외부가 통하는 별도의 창문을 만들 필요가 없다.Among the detachable air conditioners, a plurality of indoor units are installed inside the building, and one outdoor unit is separately installed outside the building. In this way, since the indoor unit and the outdoor unit can be installed separately, there is no need to make a separate window between the interior and exterior of the building.

또한, 이러한 분리형 에어콘은 실외 유니트를 건물 외부에 별도로 설치함으로써 소음을 줄일 수 있으며, 복수개의 실내 유니트도 벽걸이 형태로 설치가능하므로 실내공간의 점유 면적을 줄일 수 있는 장점이 있으므로 현재 널리 보급되고 있는 추세이다.In addition, such a separate air conditioner can reduce noise by separately installing an outdoor unit outside the building, and since a plurality of indoor units can be installed in a wall-hung form, there is an advantage to reduce the occupied area of the indoor space, which is now widely used. to be.

이와 같은 분리형 에어콘은 실내 유니트와 실외 유니트가 분리 설치가능하므로 실외 유니트 1대에 복수개의 실내 유니트를 함께 연결하여 사용가능한 멀티 에어컨으로서의 구성이 가능해진다.Since the separate air conditioner can be installed separately from the indoor unit and the outdoor unit, it is possible to configure a multi-air conditioner that can be used by connecting a plurality of indoor units together to one outdoor unit.

즉, 가정용 룸 에어콘의 보급율이 늘어남에 따라 1채의 집에 2대 이상의 에어콘을 설치하거나, 사무소, 빌딩, 점포, 병원등 사무실이 다수의 장소마다 각각의 에어콘을 설치할 경우 건물 내부의 각 사무실에 복수개의 실내 유니트를 설치하고 건물 외부에 하나의 실외 유니트를 설치한 후, 실외 유니트와 건물 내부에 있는 복수개의 실내 유니트를 연결하여 사용하는 구조로 이루어진다.In other words, as the spread of household room air conditioners increases, if more than one air conditioner is installed in one house, or an office, a building, a store, a hospital, etc., installs each air conditioner in many places, After installing a plurality of indoor units and installing one outdoor unit outside the building, the outdoor unit and the plurality of indoor units inside the building are connected and used.

이러한 멀티 에어콘은 제어를 전자적인 방법, 즉 마이컴에 의해 직접 밸브를 조작해 유량을 조절하거나 실내의 유니트의 압력(또는 온도)을 조정하는 방법이 사용되는데, 이러한 방법은 제어의 복잡성이나 응답성이 별로 고려되지 않고 있다. 또한, 밸브의 개폐나 개도 조정만으로 제어를 행하면 서로 다른 용량을 가지는 실내 유니트를 병렬로 사용할 때 과도한 제어부담을 유발하게 된다.The multi air conditioner is controlled electronically, that is, by controlling the flow rate by directly controlling the valve by a microcomputer or adjusting the pressure (or temperature) of a unit in the room. Not much considered. In addition, if control is performed only by opening and closing the valve or adjusting the opening degree, excessive control burden is caused when using indoor units having different capacities in parallel.

따라서 종래의 멀티 에어콘은 구조는 간단하지만, 각 실내 유니트로의 냉매의 흐름을 용이하게 제어하기가 어려운 문제점이 있었다.Therefore, the conventional multi-air conditioner has a simple structure, but it is difficult to easily control the flow of the refrigerant to each indoor unit.

본 발명은 상술한 바와 같은 문제점을 해결하기 위하여 창출된 것으로서, 구조적으로 간단하여 제조공정이 용이하며, 각 실내 유니트로의 냉매의 흐름을 용이하게 제어할 수 있는 멀티 에어컨을 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to provide a multi-air conditioner that is structurally simple and easy to manufacture, and which can easily control the flow of refrigerant to each indoor unit. .

상기와 같은 목적을 달성하기 위하여 본 발명은, 증발기와 냉매절환밸브를 각각 구비하는 복수의 실내 유니트와; 상기 증발기와 동일 개수의 섹션으로 분할되는 단일의 응축기와, 압축기와, 상기 응축기의 섹션과 동일 개수이며 압축기에서 응축기로의 냉매의 흐름을 선택적으로 개폐하는 냉매절환밸브와, 응축기에서 증발기로 흐르는 냉매의 압력을 감소기키기 위한 것으로 응축기의 섹션과 동일 개수의 팽창 밸브 및 냉매와 공기와의 사이에 열교환을 위한 송풍기를 구비하는 하나의 실외 유니트와; 상기 증발기의 각 입구측과 출구측에서 냉매의 온도를 검출하는 온도감지수단과; 상기 복수의 실내 유니트에서 하나의 압축기로 흐르는 냉매의 압력을 균일하게 하는 균압수단; 및 실내 유니트의 각각을 응축기의 각 섹션에 연결시키는 냉매이동관을 포함하는 멀티 에어콘을 제공하는데 그 특징이 있다.In order to achieve the above object, the present invention comprises: a plurality of indoor units each having an evaporator and a refrigerant switching valve; A single condenser divided into the same number of sections as the evaporator, a compressor, a refrigerant switching valve equal to the sections of the condenser and selectively opening and closing the flow of refrigerant from the compressor to the condenser, and a refrigerant flowing from the condenser to the evaporator An outdoor unit for reducing the pressure of the air supply unit, the same number of expansion valves as the sections of the condenser and a blower for heat exchange between the refrigerant and the air; Temperature sensing means for detecting a temperature of the refrigerant at each inlet and outlet of the evaporator; Equalizing means for equalizing the pressure of the refrigerant flowing from the plurality of indoor units to one compressor; And a refrigerant moving tube connecting each of the indoor units to each section of the condenser.

이하, 본 발명에 따른 멀티 에어콘에 대한 하나의 바람직한 실시예를 첨부된 도면에 의거하여 상세하게 설명한다.Hereinafter, one preferred embodiment of a multi air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명에 따른 멀티 에어콘의 냉매 흐름도이고, 제2도는 본 발명에 채용된 균압수단의 제1실시예를 도시한 단면도이며, 제3도는 제2도의 측면도이고, 제4도는 본 발명에 채용된 균압수단의 제2실시예를 도시한 단면도이고, 제5도는 제4도의 A-A선 단면도이다.1 is a flow chart of a refrigerant of a multi-air conditioner according to the present invention, FIG. 2 is a cross-sectional view showing a first embodiment of the equalizing means employed in the present invention, FIG. 3 is a side view of FIG. 2, and FIG. FIG. 5 is a cross sectional view showing a second embodiment of the equalizing means employed in FIG.

제1도에 도시된 바와같이 본 발명에 따른 멀티 에어콘은, 복수(본 실시예에서는 3개)의 실내 유니트(10)가 하나의 실외 유니트(20)에 중합 연결된 구조로 구성되고, 실내 유니트(10)는 통상 벽걸이형으로 설계되어 점유공간을 크게 줄이는 구조로 이루어진다.As shown in FIG. 1, the multi-air conditioner according to the present invention has a structure in which a plurality (in this embodiment, three) indoor units 10 are polymerized and connected to one outdoor unit 20. 10) is usually designed as a wall-mounted structure to reduce the occupied space significantly.

그리고 각각의 실내 유니트(10)의 내부에는 증발기(11)와, 증발기(11)로부터의 냉매의 흐름을 선택적으로 개폐하는 절환밸브(12)와, 증발기(11)의 각 입구측과 출구측에서 냉매의 온도를 검출하여 냉매의 온도를 조절하는 온도조절수단(13)이 내장되어, 그 내부의 온도를 감지하는 동시에 절환밸브(12)를 통해 냉매의 유량을 순환시키도록 되어 있다.Each indoor unit 10 has an evaporator 11, a switching valve 12 for selectively opening and closing the flow of refrigerant from the evaporator 11, and at each inlet and outlet side of the evaporator 11; The temperature control means 13 for detecting the temperature of the coolant and adjusting the temperature of the coolant is built in, so as to sense the temperature therein and to circulate the flow of the coolant through the switching valve 12.

그리고, 하나의 실외 유니트(20)는 건물 외부에 설치되며, 그 내부에는 저온 저압상태의 냉매를 압축하여 고온 고압상태의 냉매가스로 압축하는 1개의 압축기(21)와, 이 압축기(21)에서 고온 고압 상태로 상 변환(A PHASE CHANGE)된 기체냉매를 주위의 공기와 열교환시키는 응축기(23)와, 압축기(21)로부터의 냉매의 흐름을 선택적으로 개폐하는 절환밸브(22)가 설치된다.In addition, one outdoor unit 20 is installed outside the building, and therein, one compressor 21 for compressing a refrigerant in a low temperature low pressure state and compressing it into a refrigerant gas in a high temperature high pressure state, and in this compressor 21 The condenser 23 which heat-exchanges the gas refrigerant changed into a high temperature and high pressure state with the surrounding air, and the switching valve 22 which selectively opens and closes the flow of the refrigerant from the compressor 21 are provided.

한편, 응축기(23)는 본 발명의 특징에 따라 실내 유니트(10)의 갯수에 대응하는 수 만큼의 섹션으로 분할된 단일몸체로 이루어지고, 본원에서는 3개의 섹션으로 분할되어 있으나, 실내 유니트의 갯수에 따라 선택적으로 가감할 수 있다.On the other hand, the condenser 23 is composed of a single body divided into as many sections as the number corresponding to the number of the indoor unit 10 in accordance with the features of the present invention, but is divided into three sections here, the number of indoor units Can be selectively added or subtracted accordingly.

또한, 실외 유니트(20)에는 응축기(23)의 각 섹션으로부터 배출되는 냉매가 일정 압력 이상이 되면 통과시키는 3개의 팽창밸브(24)가 구비되고, 3개의 팽창밸브(24)를 각각 통과한 냉매는 각 실내 유니트(10)의 증발기(11)로 각각 유입되도록 구성되며, 실내 유니트(10)로부터의 냉매는 균압수단(35)으로 순환하도록 구성된다. 도면에서 미설명 부호(25)는 송풍팬이다.In addition, the outdoor unit 20 is provided with three expansion valves 24 which allow the refrigerant to be discharged from each section of the condenser 23 to pass a predetermined pressure or more, and the refrigerant having passed through the three expansion valves 24 respectively. Is configured to be respectively introduced into the evaporator 11 of each indoor unit 10, the refrigerant from the indoor unit 10 is configured to circulate to the equalization means (35). Reference numeral 25 in the drawing is a blowing fan.

그리고, 균압수단(35)은, 제2도 및 제3도에 도시한 바와 같이, 압축기(21)의 입구측에 설치되며, 실내 유니트(10)의 출구측과 각각 연결되는 복수의 냉매 유입관(32)과, 균압격막(33) 및 압축기(21)의 입구측과 연결되는 단일의 냉매 유출관(34) 및 중공 몸체(31)로 이루진다.As shown in FIG. 2 and FIG. 3, the equalizing means 35 is provided at the inlet side of the compressor 21 and is provided with a plurality of refrigerant inflows respectively connected to the outlet side of the indoor unit 10. It consists of a tube 32, a homogeneous diaphragm 33 and a single refrigerant outlet tube 34 and a hollow body 31 connected to the inlet side of the compressor 21.

그리고 제4도는 균압수단(40)의 제2실시예를 도시한 것으로서, 중공몸체(41)의 내부에 균압격막(44)이 설치되고, 이 균압격막(44)은 소정간격을 둔채 설치되는 2개의 판부재(44a) (44b)로 이루어지고, 이 2개의 판부재(44a) (44b)에는 냉매가 통과하는 다수의 홀(44c) (44d)이 일 측면에서 보았을 경우 제5도에 도시한 바와같이 서로 엇갈리게 형성된다.And Figure 4 shows a second embodiment of the equalizing means 40, the pressure equalizing membrane 44 is installed inside the hollow body 41, the pressure equalizing membrane 44 is installed with a predetermined interval. It consists of two plate members 44a and 44b, and in these two plate members 44a and 44b, a plurality of holes 44c and 44d through which refrigerant passes is shown in FIG. As they are formed, they are staggered.

한편, 이러한 균압격막(33) (44)은 기본적으로 40∼60%의 공극율을 갖는 타공면으로 이루어진 원판이나 기타 형태의 판으로 형성되는 것이 바람직하고, 각 빈 공간의 크기는 분지 관로 내경의 1/3보다 작은 원형태의 것이나, 육각형태의 것, 망 눈금이 분지 관로 내경 1/3보다 작은 엇갈림 망 형태의 것등이 사용될 수 있따.On the other hand, the equal pressure diaphragm 33 (44) is preferably formed of a disc or other type of plate made of a perforated surface having a porosity of 40 to 60% basically, the size of each empty space is 1 of the inner diameter of the branch pipe. Circular forms smaller than / 3, hexagonal, or staggered nets whose mesh scale is less than one-third of the bore diameter of the branch line may be used.

그리고, 망을 사용할 때나 기타 형태의 통로로 구성한 판의 두께는 냉매 유동 방향으로 굽힘이나 진동이 발생하지 않도록 충분한 두께를 확보해야 한다.In addition, the thickness of the plate formed of a network or other type of passage should be sufficient to prevent bending or vibration in the refrigerant flow direction.

이와 같이 구성된 본 발명에 따른 멀티 에어콘은 다음과 같이 동작된다.The multi-air conditioner according to the present invention configured as described above is operated as follows.

먼저 실외 유니트(20)의 압축기(21)로부터 배출된 고온고압의 가스냉매는 3개의 절환밸브(22)를 거쳐 응축기(23)의 각 섹션 즉, 3개의 섹션을 각각 통과하면서 가스냉매와 실외 유니트(20) 주변의 공기와의 열교환을 실행한다.First, the high-temperature, high-pressure gas refrigerant discharged from the compressor 21 of the outdoor unit 20 passes through each section of the condenser 23, that is, three sections, respectively, through the three switching valves 22, and the gas refrigerant and the outdoor unit, respectively. (20) Heat exchange with surrounding air is performed.

이것에 의해 가스냉매는 액체냉매로 되고, 이 액체냉매는 3개의 팽창밸브(24)를 거쳐 각각 대응하는 실내 유니트(10)의 증발기(11)로 유입되며, 증발기(11)에서는 냉매와 실내 공기와의 열교환이 일어나 냉매는 저압의 가스냉매로 된다.As a result, the gas refrigerant becomes a liquid refrigerant, and the liquid refrigerant flows into the evaporator 11 of the corresponding indoor unit 10 through three expansion valves 24, respectively, and the refrigerant and the indoor air in the evaporator 11. Heat exchange with the refrigerant causes the refrigerant to be a low pressure gas refrigerant.

그리고 실내 유니트(10) 내부에 설치된 온도감지수단(13)은 실내 유니트(10)의 증발기(11) 출구측과 입구측 냉매의 온도를 감지한 후, 감지된 냉매의 온도와 기설정된 온도를 비교 판단하여 그 결과치에 따라 절환밸브(12)를 개폐시킴으로써 증발기(11)를 흐르는 냉매의 유량을 제어한다.In addition, the temperature sensing means 13 installed inside the indoor unit 10 senses the temperatures of the evaporator 11 exit and inlet refrigerant of the indoor unit 10, and then compares the detected refrigerant temperature with a preset temperature. The flow rate of the refrigerant flowing through the evaporator 11 is controlled by opening and closing the switching valve 12 in accordance with the determination result.

그리고 절환밸브(12)를 통해 배출된 냉매는 균압수단(35) (40)의 냉매 유입관(32) (42)을 통해 중공의 몸체 내부(31) (41)로 유입되고, 유입된 냉매는 균압 격막(33) (44)에 도달하여 부분적으로 격막에 의한 막힘 효과와 다수의 홀을 통한 확산효과로 인해서 압력은 상승하고 유속은 감소하게 됨에따라 격막을 통과한 냉매는 냉매 유관(34) (43) 근처에서 전체적인 평균 압력과 평균 유속에 도달하게 되어 압축기(21)로 유출되는 냉매의 유량이 균일하게 된다.The refrigerant discharged through the switching valve 12 is introduced into the hollow bodies 31 and 41 through the refrigerant inlet pipes 32 and 42 of the pressure equalizing means 35 and 40, and the introduced refrigerant is introduced. Reaching the pressure equalizing diaphragm 33, 44, the pressure rises and the flow rate decreases due in part to the blockage effect of the diaphragm and the diffusion effect through the plurality of holes, so that the refrigerant passing through the diaphragm is the refrigerant flow pipe 34. The overall average pressure and average flow velocity are reached near 43, so that the flow rate of the refrigerant flowing out to the compressor 21 is uniform.

따라서 본 발명에 따른 멀티 에어콘은 냉매 유량 조절 방법을 균압수단으로 단순화하여 냉매 유량 조절이 용이하므로 각 실내 유니트의 냉방 부하의 변환에 따른 시스템의 운전 제어가 단순해진다.Therefore, the multi-air conditioner according to the present invention simplifies the method of adjusting the flow rate of the refrigerant to the equalization means so that the flow rate of the refrigerant is easily controlled, thereby simplifying the operation control of the system according to the conversion of the cooling load of each indoor unit.

또한, 멀티 에어콘의 압축기(21)를 한개로 공유하면서 실외 유니트(20)의 응축기(23)를 실내 유니트(10)와 동일 개수의 섹션으로 분할함으로써 압축기의 수를 줄여 제작 원가를 절감하는 동시에, 멀티 에어콘의 부하 변화에 따른 설계 변경시 단위 세트로 추가할 수 있으므로 생산원가 및 설계시간을 줄일 수 있는 장점이 있다.In addition, by sharing the compressor 21 of the multi-air conditioner into one, by dividing the condenser 23 of the outdoor unit 20 into the same number of sections as the indoor unit 10, the number of compressors is reduced to reduce the production cost, When the design change due to the load change of the multi air conditioner can be added as a unit set, there is an advantage to reduce the production cost and design time.

또한 기존 냉매의 유량 조절 방법인 모세관등과 병용시 단순한 온/오프 동작의 조합으로 단일의 실외 유니트와 복수개의 실내 유니트로 구성된 멀티 에어콘의 운전이 가능해지고, 전자식 냉매 유량 제어 밸브와 동시에 사용되는 경우에는 단순 조작으로 전체적인 시스템의 운전 조작이 더욱 용이해진다.In addition, when combined with a capillary tube, which is a flow control method of a conventional refrigerant, a simple combination of on / off operation enables the operation of a multi-air conditioner consisting of a single outdoor unit and a plurality of indoor units, and when used simultaneously with an electronic refrigerant flow control valve. Simple operation makes the operation operation of the whole system easier.

한편, 상기한 실시예는 본 발명의 바람직한 하나의 실시예를 설명한 것에 불과하고, 본 발명의 적용범위는 이와 같은 것에 한정되는 것은 아니며, 동일사상의 범주내에서 적절하게 변경, 변화 및 변형가능한 것이다.On the other hand, the above embodiment is only to describe one preferred embodiment of the present invention, the scope of the present invention is not limited to such, and can be appropriately changed, changed and modified within the scope of the same idea. .

이상에서와 같이 본 발명에 따른 멀티 에어콘에 의하면, 응축기의 각 섹션이 그에 대응하는 복수의 실내 유니트 증발기에 각각 연결되므로, 각각의 실내 유니트 증발기로의 냉매의 흐름을 독립적으로 제어할 수 있게 되는 동시에, 제품의 수율 및 원가 절감을 도모하는 효과가 있다.As described above, according to the multi-air conditioner according to the present invention, since each section of the condenser is respectively connected to a plurality of indoor unit evaporators corresponding thereto, it is possible to independently control the flow of refrigerant to each indoor unit evaporator. As a result, the yield and cost of the product can be reduced.

Claims (3)

증발기(11)와 냉매절환배브(12)를 각각 구비하는 복수의 실내 유니트(10)와; 상기 증발기(11)와 동일 개수의 섹션으로 분할되는 단일의 응축기(23)와, 하나의 압축기(21)와, 상기 응축기(23)의 섹션과 동일 개수이며 압축기(21)에서 응축기(23)로의 냉매의 흐름을 선택적으로 개폐하는 냉매절환밸브(22)와, 응축기(23)에서 증발기(11)로 흐르는 냉매의 압력을 감소시키기 위한 것으로 응축기(23)의 섹션과 동일 개수의 팽창밸브(24) 및 냉매와 공기와의 사이에 열교환을 위한 송풍기(25)를 구비하는 하나의 실외 유니트(20)와; 상기 증발기(11)의 각 입구측과 출구측에서 냉매의 온도를 검출하는 온도감지수단(13)과; 상기 복수의 실내 유니트(10)에서 하나의 압축기(21)로 흐르는 냉매의 압력을 균일하게 하는 균압수단을; 포함하는 것을 특징으로 하는 멀티 에어콘.A plurality of indoor units 10 each having an evaporator 11 and a refrigerant switching valve 12; A single condenser 23 divided into the same number of sections as the evaporator 11, one compressor 21, and the same number as the sections of the condenser 23, from the compressor 21 to the condenser 23. Refrigerant switching valve 22 for selectively opening and closing the flow of the refrigerant, and to reduce the pressure of the refrigerant flowing from the condenser 23 to the evaporator 11, the same number of expansion valve 24 as the section of the condenser 23 And one outdoor unit 20 having a blower 25 for heat exchange between the refrigerant and the air; Temperature sensing means (13) for detecting the temperature of the refrigerant at each of the inlet and outlet sides of the evaporator (11); Equalizing means for equalizing the pressure of the refrigerant flowing from the plurality of indoor units (10) to one compressor (21); Multi-air conditioner comprising a. 제1항에 있어서, 상기 균압수단(40)은, 중공의 몸체(41)와, 상기 몸체(41)의 일측에 형성되며 상기 복수의 실내 유니트(10) 각각의 냉매 출구측과 각각 연결되는 복수의 냉매 유입관(42)과, 상기 몸체(41)의 타측에 형성되며 상기 압축기(21)의 냉매 입구측과 연결되는 단일의 냉매 유출관(43)과, 상기 냉매 유입관(42)과 냉매 유출관(43) 사이의 상기 몸체(41) 내부에 설치되는 균압격막(44)을 구비하는 것을 특징으로 하는 멀티 에어콘.The method of claim 1, wherein the equalizing means 40, the hollow body 41, and formed on one side of the body 41 is connected to the refrigerant outlet side of each of the plurality of indoor units 10, respectively A plurality of refrigerant inlet pipes 42, a single refrigerant outlet pipe 43 formed at the other side of the body 41 and connected to the refrigerant inlet side of the compressor 21, and the refrigerant inlet pipe 42; Multi-conditioner, characterized in that it comprises a pressure equalizing membrane 44 which is installed in the body (41) between the refrigerant outlet pipe (43). 제2항에 있어서, 상기 균압격막(44)은, 소정간격 이격괸 상태로 배치되는 2개의 판부재(44a) (44b)로 이루어지고, 2개의 판부재(44a) (44b)에는 다수의 홀(44c) (44d)이 서로 엇갈리도록 형성된 것을 특징으로 하는 멀티 에어콘.The pressure equalizing membrane (44) is formed of two plate members (44a) and (44b) arranged at predetermined intervals, and the two plate members (44a) (44b) have a plurality of holes. (44c) Multi-air conditioner, characterized in that (44d) are formed to cross each other.
KR1019950059627A 1995-12-27 1995-12-27 Multi-airconditioner KR0180595B1 (en)

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KR1019950059627A KR0180595B1 (en) 1995-12-27 1995-12-27 Multi-airconditioner
JP8347462A JPH09229500A (en) 1995-12-27 1996-12-26 Air conditioner for multiple rooms
US08/773,867 US5709097A (en) 1995-12-27 1996-12-27 Multiroom airconditioner
CN96114188.3A CN1157392A (en) 1995-12-27 1996-12-27 Multiroom airconditioner

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US7762091B2 (en) 2004-11-04 2010-07-27 Winiamando Inc. Apparatus for controlling the capacity of an air conditioner and control method using the same

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KR100549062B1 (en) * 1998-04-15 2006-06-01 삼성전자주식회사 Refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762091B2 (en) 2004-11-04 2010-07-27 Winiamando Inc. Apparatus for controlling the capacity of an air conditioner and control method using the same

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