KR20070030074A - Multi air conditioning system - Google Patents

Multi air conditioning system Download PDF

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Publication number
KR20070030074A
KR20070030074A KR1020050084839A KR20050084839A KR20070030074A KR 20070030074 A KR20070030074 A KR 20070030074A KR 1020050084839 A KR1020050084839 A KR 1020050084839A KR 20050084839 A KR20050084839 A KR 20050084839A KR 20070030074 A KR20070030074 A KR 20070030074A
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South Korea
Prior art keywords
outdoor unit
air conditioning
conditioning system
operation mode
indoor unit
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KR1020050084839A
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Korean (ko)
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안창웅
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엘지전자 주식회사
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Priority to KR1020050084839A priority Critical patent/KR20070030074A/en
Publication of KR20070030074A publication Critical patent/KR20070030074A/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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A multi air conditioning system is provided to prevent input of control commands for converting operation modes of indoor units to other ones when an outdoor unit is in operation according to an operation mode selected by one of the indoor units, thereby preventing operation error of the outdoor unit. A multi air conditioning system includes a plurality of indoor units(70), and an outdoor unit(60), wherein each of the indoor units are controlled according to control commands input via a main body or a remote controller(R). Each of the indoor units has a microcomputer(71), which blocks input of operation mode conversion commands causing conversion of refrigerant cycle if a control command for converting cooling mode conversion is input from the main body or the remote controller during the outdoor unit is in operation with a cooling cycle. The microcomputer prevents display of selection/conversion of operation mode, thereby preventing input of commands for mode conversion to any other one rather than an already selected and carrying operation mode.

Description

멀티 공기조화 시스템{Multi air conditioning system}Multi air conditioning system

도 1 은 일반적인 멀티 공기조화 시스템의 구성도, 1 is a configuration diagram of a general multi air conditioning system,

도 2 는 종래 발명의 멀티 공기조화 시스템의 운전모드가 표시된 블록도,2 is a block diagram showing the operation mode of the conventional multi-air conditioning system,

도 3 은 본 발명의 멀티 공기조화 시스템의 운전모드가 표시된 블록도이다.3 is a block diagram showing the operation mode of the multi-air conditioning system of the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

60: 실외기 61: 실외기 제어부60: outdoor unit 61: outdoor unit control unit

70: 실내기 71: 실내기 제어부70: indoor unit 71: indoor unit control unit

본 발명은 실외기에 연결된 다수개의 실내기 중 어느 하나의 실내기에 의해 운전모드가 결정된 경우, 나머지 실내기에 의해 이질운전이 선택되지 않도록 운전모드 선택을 차단하는 멀티 공기조화 시스템에 관한 것이다. The present invention relates to a multi-air conditioning system that blocks the operation mode selection so that the heterogeneous operation is not selected by the remaining indoor units when the operation mode is determined by any one of a plurality of indoor units connected to the outdoor unit.

일반적으로, 공기조화기는 실내 공간을 냉방 또는 난방시키기 위한 장치로서, 최근 다수의 룸으로 구획된 실내공간을 보다 효율적으로 냉방 또는 난방시키기 위하여 각 룸마다 실내기를 배치하고, 상기 다수개의 실내기와 공유 연결되어 각 실내기에서 입력된 제어명령에 따라 냉매를 분배 및 순환시키는 실외기로 구성된 멀티 공기조화기가 널리 보급되고 있다. In general, an air conditioner is a device for cooling or heating an indoor space. In order to more efficiently cool or heat an indoor space divided into a plurality of rooms, an indoor unit is disposed in each room, and a plurality of indoor units are sharedly connected. Therefore, multi-air conditioners including outdoor units for distributing and circulating refrigerant in accordance with control commands input from each indoor unit are widely used.

이와 같이 멀티 공기조화기는 한 대의 실외기에 다수개의 실내기가 연결되어 구성되므로, 난방과 냉방 중 어느 하나의 운전모드로 동작되어 실내를 공기조화시키게 된다. As such, since the multi-air conditioner is configured by connecting a plurality of indoor units to one outdoor unit, the multi-air conditioner is operated in any one operation mode of heating and cooling to air-condition the room.

이하, 일반적인 멀티 공기조화기의 구성을 도 1을 참조하여 살펴보기로 한다. Hereinafter, a configuration of a general multi air conditioner will be described with reference to FIG. 1.

먼저, 실외기(A)와 분배기(B) 그리고 다수개의 실내기(C)로 크게 이루어진다. 상기 실외기(A)에는 압축기(1)와 실외열교환기(2) 등이 설치되고, 상기 분배기(B)에는 제어수단(미도시)과 기액분리기(10) 및 안내배관부(20) 등이 설치되며, 상기 각 실내기(C)에는 실내열교환기(42)와 전자팽창밸브(41) 등이 각각 설치된다.First, the outdoor unit (A), the distributor (B) and a large number of indoor units (C). The outdoor unit (A) is provided with a compressor (1) and an outdoor heat exchanger (2) and the like, and the distributor (B) is provided with a control means (not shown), a gas-liquid separator 10 and a guide pipe 20, etc. Each indoor unit (C) is provided with an indoor heat exchanger (42) and an electromagnetic expansion valve (41), respectively.

상기 실외기는 각 실내기에서 입력된 제어명령(선택모드, 풍량, 희망온도) 및 그에 따른 냉난방 부하에 따라, 분배기(B)를 통해 다수대의 실내기(C)로 냉매를 선택적으로 분배한다. The outdoor unit selectively distributes the refrigerant to the plurality of indoor units (C) through the distributor (B) in accordance with the control command (selection mode, air volume, desired temperature) and the heating / cooling load according to the indoor unit.

여기서, 상기 분배기(B)는 운전조건에 따라 상기 실외기(A)로부터 유입된 냉매의 상을 분리하거나 상기 실내기(C)로 부터 유입된 냉매의 상을 혼합하는 기액분리기(10)가 포함되어 구성된다. Here, the distributor B includes a gas-liquid separator 10 that separates the phase of the refrigerant introduced from the outdoor unit A or mixes the phase of the refrigerant introduced from the indoor unit C according to an operating condition. do.

또한, 상기 운전조건에 따라 상기 실외기(A)로부터 직접 유입되거나 상기 기액분리기(10)를 거쳐 유입된 냉매를 상기 실내기(C)로 안내함과 함께 열교환된 냉매를 상기 실외기(A)로 재안내하는 안내 배관부(20)와, 상기 다수대의 실내기(C)중 운전조건에 따라 선택된 실내기로만 냉매가 유입되도록 상기 안내배관부(20)를 제어하는 밸브(30)가 포함되어 구성된다.In addition, the refrigerant introduced directly from the outdoor unit A or passed through the gas-liquid separator 10 according to the operating conditions is guided to the indoor unit C, and the heat exchanged refrigerant is re-introduced to the outdoor unit A. The guide pipe portion 20 and the valve 30 for controlling the guide pipe portion 20 so that the refrigerant flows only into the indoor unit selected according to the operating conditions of the plurality of indoor units (C).

이와 같이 구성되는 종래의 멀티 공기조화기는 도 2에 도시된 바와 같이 냉방모드로 운전 도중 어느 실내기에 의해 난방모드로 설정되는 경우, 상기 실외기(A) 및 분배기(B)에서 냉방 또는 난방을 절환하기 위해 배기밸브의 고압밸브 및 저압밸브를 동시에 동작시키게 되는바, 이를 이질운전이라 한다. When the conventional multi-air conditioner is configured as the heating mode by any indoor unit during operation in the cooling mode as shown in Figure 2, switching the cooling or heating in the outdoor unit (A) and the distributor (B) In order to operate the high pressure valve and the low pressure valve of the exhaust valve at the same time, this is called heterogeneous operation.

이와 같이 이질운전 명령이 어느 실내기를 통해 입력됨에 따라 고압냉매와 저압냉매가 동시에 유통되므로, 냉매의 압력차로 인해 배관에서 진동과 소음이 발생하고 그 결과, 공기조화기 및 배관설비의 내구성이 저하된다는 문제점이 있었다. As the heterogeneous operation command is input through any indoor unit as described above, the high pressure refrigerant and the low pressure refrigerant are distributed at the same time. Thus, vibration and noise are generated in the piping due to the pressure difference between the refrigerants. There was a problem.

이를 대비하기 위해 종래 실외기 마이컴은 이질운전으로 판단된 경우, 즉시 에러상태를 표시하도록 하는 제어신호를 다수의 실내기로 전송하였다. In order to prepare for this, the conventional outdoor unit microcomputer transmits a control signal for displaying an error state immediately to a plurality of indoor units when it is determined that it is heterogeneous operation.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 그 목적은 소정의 실내기에서 입력된 제어명령에 따라 운전모드가 선택되어 실외기가 운전중인 경우, 나머지 실내기에서 상이한 운전모드로 전환하는 제어명령이 입력되지 않도록 하여 실외기 동작오류를 방지할 수 있는 멀티 공기조화 시스템을 제 공하는데 그 목적이 있다. The present invention has been made to solve the above problems of the prior art, the object of which is to select a driving mode according to a control command input from a predetermined indoor unit when the outdoor unit is operating, to switch to a different operation mode in the remaining indoor unit The object of the present invention is to provide a multi-air conditioning system that prevents an outdoor unit operation error by preventing a control command from being input.

상기한 과제를 해결하기 위한 본 발명에 의한 멀티 공기조화 시스템은, 실내기는 현재 실외기의 냉매 순환방향을 전환시키는 운전모드 전환명령의 입력을 무시 또는 차단하는 마이컴을 포함하여 구성되는 것을 제 1 특징으로 한다. The multi-air conditioning system according to the present invention for solving the above problems is characterized in that the indoor unit is configured to include a microcomputer that ignores or blocks an input of an operation mode change command for changing the refrigerant circulation direction of the outdoor unit. do.

또한, 실외기는 소정의 실내기로부터 전송되는 현재의 냉매 순환방향을 전환시키는 운전모드 전환명령을 무시 또는 차단하는 마이컴을 포함하여 구성되는 것을 제 2 특징으로 한다. In addition, the outdoor unit is characterized in that the second feature is configured to include a microcomputer to ignore or block the operation mode switching command for switching the current refrigerant circulation direction transmitted from a predetermined indoor unit.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다. 도 3은 본 발명의 멀티 공기조화 시스템의 구성이 도시된 도면이다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 3 is a view showing the configuration of a multi-air conditioning system of the present invention.

간략하게 본 발명의 구성을 살펴보면, 도 3에 도시된 바와 같이 멀티 공기조화기는 각 룸마다 설치되는 실내기(70)와, 다수개의 실내기와 연결되는 하나의 실외기(60)가 시스템을 이룬다. Briefly looking at the configuration of the present invention, as shown in Figure 3, the multi-air conditioner is composed of an indoor unit 70 installed in each room, and one outdoor unit 60 connected to a plurality of indoor units constitute a system.

이러한 시스템은 압축기, 실외 열교환기, 실내 열교환기가 배관을 통해 연결되어 구성되고, 상기 배관을 통해 냉매가 상태 변화를 하게 되면서 실내공기에 포함된 열을 흡수하거나 방출하여 냉방운전 또는 난방운전을 한다.Such a system is configured by connecting a compressor, an outdoor heat exchanger, and an indoor heat exchanger through a pipe, and cooling or heating operation by absorbing or releasing heat contained in indoor air while the refrigerant changes state through the pipe.

이러한 실외기(60) 및 다수개의 실내기(70)는 냉매가 순환되는 배관이 연결되고, 제어신호가 송수신되는 통신선으로 연결된다. The outdoor unit 60 and the plurality of indoor units 70 are connected to a pipe through which the refrigerant is circulated, and to a communication line through which control signals are transmitted and received.

이때, 상기 실외기(60) 및 다수개의 실내기(70)는 RS-485규격을 기반으로 하는 신호를 송수신하는 것으로 예시하는바, 상기 RS-485 통신규격은 시리얼 전송의 인터페이스 규격의 하나로서 멀티포인트 통신회선을 위한 표준이다. In this case, the outdoor unit 60 and the plurality of indoor units 70 is illustrated as transmitting and receiving a signal based on the RS-485 standard, the RS-485 communication standard is one of the interface specifications of the serial transmission multi-point communication It is a standard for circuits.

또한, 상기 실내기(60) 또는 실내기로 원격 제어명령을 전송하는 유선/무선 리모콘(R)은 운전모드를 전환시키는 모드전환버튼(미도시)이 구비되어 있거나, 소정의 버튼을 조작하여 표시부(미도시)에 표시된 모드전환메뉴를 선택함으로써 운전모드를 전환할 수 있다. In addition, the wired / wireless remote controller R for transmitting the remote control command to the indoor unit 60 or the indoor unit is provided with a mode switching button (not shown) for switching the operation mode, or by operating a predetermined button to display (not shown). Operation mode can be switched by selecting the mode change menu displayed in ().

이와 같이 구성되는 공기조화 시스템에 있어서, 도 3과 같이 실내기 1의 본체 또는 리모콘(R)을 통해 냉방모드로 운전을 요청하는 제어명령이 입력됨에 따라, 실외기(60)가 냉방 사이클을 형성하여 운전 중인 경우, 실내기의 마이컴(71)은 상기 냉매의 사이클을 전환시키는 운전모드 전환명령을 차단한다. In the air conditioning system configured as described above, as the control command for requesting the operation in the cooling mode is input through the main body of the indoor unit 1 or the remote controller R as shown in FIG. 3, the outdoor unit 60 operates by forming a cooling cycle. If it is, the microcomputer 71 of the indoor unit blocks the operation mode switching command for switching the cycle of the refrigerant.

즉, 실내기에 구비된 마이컴(71)은 기선택된 운전모드 이외의 모드로 전환명령을 내릴 수 없도록 운전모드를 선택/전환하는 모드전환메뉴가 표시되지 않도록 한다. 따라서, 사용자는 본체 또는 리모콘(R)의 버튼을 조작하여 냉방 사이클을 전환시키지 않는 운전모드, 즉 냉방모드 또는 송풍모드로만 전환할 수 있고, 그 외의 제어명령(온도설정, 운전시작, 풍량/풍향 조절 등)을 입력할 수 있다. That is, the microcomputer 71 provided in the indoor unit does not display the mode switching menu for selecting / switching the operation mode so that a command for switching to a mode other than the pre-selected operation mode cannot be issued. Therefore, the user can switch only to the operation mode that does not switch the cooling cycle by operating the buttons of the main body or the remote controller R, that is, the cooling mode or the blowing mode, and other control commands (temperature setting, operation start, wind volume / wind direction). Control, etc.) can be entered.

또한, 상기 실내기 마이컴(71)은 실내기 본체 또는 리모콘에 형성된 운전모드 버튼이 조작됨에 따라 입력된 운전모드 전환명령을 무시하여, 실외기로 운전모드 전환신호를 전송하지 않는다.In addition, the indoor unit microcomputer 71 ignores the operation mode switching command input as the operation mode button formed on the indoor unit main body or the remote controller does not transmit the operation mode switching signal to the outdoor unit.

따라서, 현재 운전모드를 선택한 실내기 1에 의해 운전이 정지되거나 운전모 드가 전환되지 않는 한, 나머지 실내기를 통해서는 이미 선택된 운전모드 또는 송풍모드만을 선택할 수 있게 되므로, 사용자 조작 미숙으로 인해 실외기에 의해 동작중인 냉매 사이클이 급전환되는 경우를 방지할 수 있게 된다. Therefore, unless the operation is stopped or the operation mode is switched by the indoor unit 1 that has selected the current operation mode, only the already selected operation mode or the blowing mode can be selected through the remaining indoor units. It is possible to prevent the case where the refrigerant cycle being switched is suddenly switched.

마찬가지로, 상기 실외기 마이컴(61)은 이미 선택된 운전모드로 냉매를 순환시키는 중에 실내기 1이 아닌 다른 실내기로부터 상기 냉매 순환방향을 전환시키는 운전모드 전환명령이 수신되는 경우, 이를 무시하여 현재의 운전모드를 그대로 유지하도록 한다. 물론, 상기 실내기 1로부터 운전모드 전환명령이 수신되는 경우에는 냉매 사이클이 전환되도록 제어한다. Likewise, when the outdoor unit microcomputer 61 receives the operation mode switching command for changing the refrigerant circulation direction from an indoor unit other than the indoor unit 1 while circulating the refrigerant in the already selected operation mode, the outdoor unit microcomputer 61 ignores the current operation mode. Keep it the same. Of course, when the operation mode switching command is received from the indoor unit 1, the refrigerant cycle is controlled to switch.

이상과 같이 본 발명에 의한 멀티 공기조화 시스템을 예시된 도면을 참조로 설명하였으나, 본 명세서에 개시된 실시예와 도면에 의해 본 발명은 한정되지 않으며, 본 발명의 기술사상이 보호되는 범위 이내에서 응용될 수 있다. As described above, the multi-air conditioning system according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed herein, and the application is within the scope of the technical idea of the present invention. Can be.

상기와 같이 구성되는 본 발명의 멀티 공기조화 시스템은 소정의 실내기에서 입력된 제어명령에 따라 운전모드가 선택되어 실외기가 운전중인 경우, 나머지 실내기에서 상이한 운전모드로 전환하는 제어명령이 입력되지 않도록 하여 사용자의 조작 미숙으로 인한 실외기 동작오류를 방지할 수 있는 멀티 공기조화 시스템을 제공하는데 그 목적이 있다. In the multi-air conditioning system of the present invention configured as described above, when the operation mode is selected according to a control command input from a predetermined indoor unit and the outdoor unit is operating, the control command for switching to a different operation mode is not input from the remaining indoor units. An object of the present invention is to provide a multi-air conditioning system that can prevent outdoor unit operation errors due to user's inexperienced operation.

Claims (3)

각 실마다 설치되는 실내기와, 상기 실내기로부터 입력된 제어명령에 따라 냉매순환을 제어하여 냉/난방모드로 구동되는 실외기로 구성된 멀티 공기조화 시스템에 있어서, In the multi-air conditioning system consisting of an indoor unit installed in each room, and an outdoor unit driven in the cooling / heating mode by controlling the refrigerant circulation in accordance with the control command input from the indoor unit, 상기 실내기는 현재 실외기의 냉매 순환방향을 전환시키는 운전모드 전환명령의 입력을 무시 또는 차단하는 마이컴을 포함하여 구성되는 것을 특징으로 하는 멀티 공기조화 시스템. The indoor unit is a multi-air conditioning system, characterized in that it comprises a micom to ignore or block the input of the operation mode switching command for switching the refrigerant circulation direction of the outdoor unit. 청구항 1에서, In claim 1, 상기 실내기 마이컴은 소정의 모드로 운전중인 실외기의 냉매 순환방향을 전환시키는 모드전환메뉴가 표시되지 않도록 하는 것을 특징으로 하는 멀티 공기조화 시스템. The indoor unit microcomputer is a multi-air conditioning system characterized in that the mode switching menu for switching the refrigerant circulation direction of the outdoor unit operating in a predetermined mode is not displayed. 각 실마다 설치되는 실내기와, 상기 실내기로부터 입력된 제어명령에 따라 냉매순환을 제어하여 냉/난방모드로 구동되는 실외기로 구성된 멀티 공기조화 시스템에 있어서, In the multi-air conditioning system consisting of an indoor unit installed in each room, and an outdoor unit driven in the cooling / heating mode by controlling the refrigerant circulation in accordance with the control command input from the indoor unit, 상기 실외기는 소정의 실내기로부터 전송되는 현재의 냉매 순환방향을 전환시키는 운전모드 전환명령을 무시 또는 차단하는 마이컴을 포함하여 구성되는 것을 특징으로 하는 멀티 공기조화 시스템. The outdoor unit is a multi-air conditioning system, characterized in that it comprises a microcomputer to ignore or block the operation mode switching command for switching the current refrigerant circulation direction transmitted from a predetermined indoor unit.
KR1020050084839A 2005-09-12 2005-09-12 Multi air conditioning system KR20070030074A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110726211A (en) * 2019-10-10 2020-01-24 珠海格力电器股份有限公司 Air conditioner multi-split air conditioner control method and device, storage medium and air conditioner multi-split air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110726211A (en) * 2019-10-10 2020-01-24 珠海格力电器股份有限公司 Air conditioner multi-split air conditioner control method and device, storage medium and air conditioner multi-split air conditioner

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