JPH09318142A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH09318142A JPH09318142A JP8139893A JP13989396A JPH09318142A JP H09318142 A JPH09318142 A JP H09318142A JP 8139893 A JP8139893 A JP 8139893A JP 13989396 A JP13989396 A JP 13989396A JP H09318142 A JPH09318142 A JP H09318142A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- air conditioner
- indoor unit
- indoor
- outdoor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気調和機に関す
るものであり、特に互いに分離された室外機と室内機と
を冷媒配管で接続して成るセパレート形空気調和機、及
びマルチ形空気調和機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to a separate type air conditioner and a multi type air conditioner in which an outdoor unit and an indoor unit, which are separated from each other, are connected by a refrigerant pipe. Regarding
【０００２】[0002]
【従来の技術】従来のセパレート形空調機は、室外機と
室内機が分離され、両者は冷媒配管及び通信媒体で接続
された構造とされ、またマルチ形空調機は少なくとも１
台の室内機と少なくとも１台の室外機が分離され、これ
らが冷媒配管及び通信媒体で接続してなるものである。
また、それぞれの室外機、室内機にはマイクロコンピュ
ータ（以下、マイコンと略すことがある）を備えた制御
装置が組み込まれていて、それぞれの制御装置は互いに
情報交換可能な通信手段を備えている。2. Description of the Related Art A conventional separate type air conditioner has a structure in which an outdoor unit and an indoor unit are separated, and both are connected by a refrigerant pipe and a communication medium.
One indoor unit and at least one outdoor unit are separated, and these are connected by a refrigerant pipe and a communication medium.
Further, a control device equipped with a microcomputer (hereinafter, may be abbreviated as a microcomputer) is incorporated in each of the outdoor unit and the indoor unit, and each control device is equipped with a communication means capable of exchanging information with each other. .
【０００３】[0003]
【発明が解決しようとする課題】しかし、前述の従来技
術では室外機と室内機との組み合わせには制約があり、
一般的に同時期に開発された室外機と室内機同士を組み
合わせることには何ら問題はないが、例えば、モデルチ
ェンジ後の室外機とモデルチェンジ前の室内機を組み合
わせようとしても、互いに前提となる構成機器の仕様が
合わない、あるいは互いの通信プロトコルが不一致であ
る、さらには互いの制御手段の整合性がない等の問題が
あり、室外機と室内機を事実上組み合わせて使用するこ
とができない場合があった。However, in the above-mentioned prior art, there are restrictions on the combination of the outdoor unit and the indoor unit,
Generally, there is no problem in combining an outdoor unit and an indoor unit that were developed at the same time, but for example, even if you try to combine an outdoor unit after a model change and an indoor unit before a model change There is a problem that the specifications of the other components do not match, the communication protocols do not match each other, and the control means do not match each other.Therefore, it is possible to use an outdoor unit and an indoor unit in combination. There were times when I couldn't.
【０００４】そのため、顧客が、空気調和機を構成する
室外機あるいは室内機の一部をリニューアルしようとし
ても、すでに空気調和機メーカがモデルチェンジを実施
し、市場に顧客が保有する空気調和機と同一モデルの室
外機あるいは室内機が存在しない場合には、室外機と室
内機を一式買い換える必要があった。また、空気調和機
の容量を増やそうとする場合でも室外機だけでなく室内
機も買い換えなければならない場合があった。Therefore, even if the customer tries to renew an outdoor unit or a part of the indoor unit that constitutes the air conditioner, the air conditioner maker has already made a model change and the air conditioner owned by the customer in the market has already been changed. If there is no outdoor unit or indoor unit of the same model, it was necessary to replace the outdoor unit and the indoor unit as a set. In addition, in order to increase the capacity of the air conditioner, it was sometimes necessary to replace not only the outdoor unit but also the indoor unit.
【０００５】本発明は、以上のような問題点に鑑みてな
されたもので、現在設置されている空気調和機の室外機
あるいは室内機の１台以上を任意に交換できるようにし
た空気調和機を提供することを目的とする。The present invention has been made in view of the above problems, and an air conditioner in which one or more outdoor units or indoor units of the currently installed air conditioner can be arbitrarily replaced. The purpose is to provide.
【０００６】[0006]
【課題を解決するための手段】前述の目的を達成するた
め、第１の発明の空気調和機は、１台の室外機に１台の
室内機が接続されるセパレート形空気調和機、又は少な
くとも１台の室外機に複数台の室内機が接続されるマル
チ形空気調和機であって、該室外機及び室内機が、冷媒
膨脹手段等の構成機器及び該構成機器を駆動する機器駆
動手段を有する空気調和機において、室外機は、室内機
から送信される情報に基づき室内機の機器駆動手段の制
御量を決定する制御手段を備えたことを特徴とする。In order to achieve the above-mentioned object, the air conditioner of the first invention is a separate type air conditioner in which one outdoor unit is connected to one indoor unit, or at least A multi-type air conditioner in which a plurality of indoor units are connected to one outdoor unit, wherein the outdoor unit and the indoor unit include constituent devices such as refrigerant expansion means and device driving means for driving the constituent devices. In the air conditioner having the outdoor unit, the outdoor unit includes a control unit that determines the control amount of the device driving unit of the indoor unit based on the information transmitted from the indoor unit.
【０００７】第２の発明は、第１の発明の空気調和機に
おいて、室外機は、室内機の構成機器情報により制御方
式を決定し、該制御方式を前記制御手段に送信する空調
制御決定手段を有することを特徴とする。A second aspect of the present invention is the air conditioner of the first aspect of the present invention, in which the outdoor unit determines the control method based on the information on the constituent devices of the indoor unit, and sends the control method to the control means. It is characterized by having.
【０００８】第３の発明は、第２の発明の空気調和機に
おいて、複数台の室内機構成機器情報は、冷媒膨脹手段
としての電子膨脹弁、又はキャピラリーチューブに関す
る情報であることを特徴とする。A third invention is characterized in that, in the air conditioner of the second invention, the plurality of indoor unit constituent device information is information about an electronic expansion valve or a capillary tube as a refrigerant expansion means. .
【０００９】第４の発明は、第１乃至３のいずれかの発
明の空気調和機において、室外機又は室内機は主たる通
信プロトコル手段により通信され、該主たるプロトコル
と異なるプロトコル通信手段を有する室外機又は室内機
は、プロトコル変換手段を有することを特徴とする。A fourth invention is the air conditioner according to any one of the first to third inventions, wherein the outdoor unit or the indoor unit is communicated by a main communication protocol means, and the outdoor unit has a protocol communication means different from the main protocol. Alternatively, the indoor unit is characterized by having protocol conversion means.
【００１０】第５の発明は、第１乃至３のいずれかの空
気調和機において、前記制御手段は、室内機から取り込
んだ室内機空調情報により空調能力を制限する縮退制御
を行うことを特徴とする。A fifth aspect of the present invention is the air conditioner according to any one of the first to third aspects, wherein the control means performs degeneration control for limiting the air conditioning capacity based on the indoor unit air conditioning information read from the indoor unit. To do.
【００１１】第６の発明の空気調和機は、１台の室外機
に１台の室内機が接続されるセパレート形空気調和機、
又は少なくとも１台の室外機に複数台の室内機が接続さ
れるマルチ形空気調和機であって、該室外機及び室内機
が、冷媒膨脹手段等の構成機器及び該構成機器を駆動す
る機器駆動手段を有する空気調和機において、各室外機
及び室内機はそれぞれ、機器駆動手段の制御量を決定す
る制御手段、及び空調状態情報を定期的に他の室外機、
室内機に送信する自律分散プロトコル通信手段を備え、
前記制御手段は前記空調状態情報に基づき自機の制御量
を決定することを特徴とする。An air conditioner of a sixth invention is a separate air conditioner in which one outdoor unit is connected to one indoor unit,
Alternatively, it is a multi-type air conditioner in which a plurality of indoor units are connected to at least one outdoor unit, and the outdoor unit and the indoor unit drive constituent devices such as refrigerant expansion means and device driving for driving the constituent devices. In the air conditioner having means, each of the outdoor unit and the indoor unit respectively determines a control amount of the device driving unit, and air-conditioning state information to other outdoor units on a regular basis,
Equipped with an autonomous distributed protocol communication means for transmitting to the indoor unit,
It is characterized in that the control means determines the control amount of the own device based on the air conditioning state information.
【００１２】第７の発明は、第１又は第６の発明におい
て少なくとも１台の室外機、又は少なくとも１台の室内
機が追加される場合、追加された室外機又は室内機が自
動的に自機のアドレスを設定し、空調制御を行う手段を
備えたことを特徴とする。According to a seventh aspect of the present invention, when at least one outdoor unit or at least one indoor unit is added in the first or sixth aspect, the added outdoor unit or indoor unit is automatically operated. It is characterized by comprising means for setting an address of the machine and controlling the air conditioning.
【００１３】第８の発明は、第７の発明において少なく
とも１台の室内機又は１台の室外機が故障した場合、該
故障を検知する手段と、該検知結果により自動的に故障
した室内機又は室外機を離脱し、空調制御を行う手段を
備えたことを特徴とする。According to an eighth aspect of the present invention, in the seventh aspect, when at least one indoor unit or one outdoor unit fails, a means for detecting the failure and an indoor unit that automatically fails according to the detection result. Alternatively, it is characterized by being provided with means for performing air conditioning control by detaching the outdoor unit.
【００１４】次に作用について説明すると、本発明で
は、通信手段及び機器駆動手段を制御するマイクロコン
ピュータを備えた制御装置が組み込まれているセパレー
ト形又はマルチ形空気調和機において、室内機には、自
機の空調状態情報を室外機に送信する手段と、室外機よ
り送信された自機の各構成機器の制御量を受信する手段
と、前記制御量に従い自機の各構成機器を駆動する手段
とを設け、室外機には、自機の空調状態情報を他の室外
機に送信する手段と、他の室外機及びそれぞれの室内機
より送信された空調状態情報を受信する手段と、自機及
び他機の空調状態情報よりそれぞれの室内機の各構成機
器の制御量を決定する手段と、前記制御量をそれぞれの
室内機に送信する手段とを設けることによって、空気調
和機全体の各構成機器の制御量を決定する手段が全て室
外機に集約されるため、既設の空気調和機の室外機ある
いは室内機の１台以上を交換する場合、交換前のものと
構成機器及び通信プロトコルに互換性があればモデルの
新旧に拘わらず置き換えできる。The operation will be described below. In the present invention, in a separate type or multi-type air conditioner in which a control device having a microcomputer for controlling communication means and equipment driving means is incorporated, the indoor unit is Means for transmitting the air conditioning state information of the own machine to the outdoor unit, means for receiving the control amount of each constituent device of the own machine transmitted from the outdoor unit, and means for driving each constituent device of the own device in accordance with the control amount The outdoor unit is provided with means for transmitting the air conditioning state information of the own unit to other outdoor units, a unit for receiving the air conditioning state information transmitted from the other outdoor units and the respective indoor units, and the own unit. And each unit of the entire air conditioner by providing means for determining the control amount of each constituent device of each indoor unit from the air conditioning state information of other units and means for transmitting the control amount to each indoor unit. Machine Since all of the means for determining the control amount of the air conditioner are integrated into the outdoor unit, when replacing one or more of the existing outdoor units or indoor units of the air conditioner, compatibility with the components and communication protocol before the replacement If there is, it can be replaced regardless of the old or new model.
【００１５】また、上述の手段に加え、室内機には、自
機の構成機器情報を室外機に送信する手段を設け、室外
機にはそれぞれの室内機より送信された構成機器情報を
受信する手段と、室内機の機器構成に応じた複数の制御
量決定手段と、受信した前記構成機器情報に従い前記複
数の制御量決定手段を選択的に実行する手段を設けるこ
とにより、既設の空気調和機の室内機の１台以上を交換
する場合、交換前のものと通信プロトコルに互換性があ
ればモデルの新旧に拘わらず置き換えできる。ただし、
通信プロトコルに互換性が無い場合でも、交換後の室内
機又は室外機に通信プロトコル変換装置を接続し交換前
と同一の通信プロトコルに合わせることができる場合に
は置き換え可能となる。In addition to the above-mentioned means, the indoor unit is provided with means for transmitting the constituent device information of the own device to the outdoor unit, and the outdoor unit receives the constituent device information transmitted from each of the indoor units. Means, a plurality of control amount determining means according to the device configuration of the indoor unit, and a means for selectively executing the plurality of control amount determining means according to the received component device information, thereby providing an existing air conditioner If more than one indoor unit is replaced, it can be replaced regardless of old or new model as long as the communication protocol is compatible with the one before replacement. However,
Even if the communication protocol is not compatible, it can be replaced if the communication protocol converter is connected to the indoor unit or the outdoor unit after the replacement and the same communication protocol as before the replacement can be met.
【００１６】また、前記目的を達成するため、他のの発
明ではマイクロコンピュータと通信手段を備えた制御装
置が組み込まれているセパレート形又はマルチ形空気調
和機において、各室外機及び各室内機にはブロードキャ
スト通信によって自機の空調状態情報を定期的あるいは
状態変化時に自機以外の全ての室外機及び室内機に送信
する手段と、他機よりブロードキャスト通信で送信され
た空調状態情報を選択的に受信し記憶する自機の記憶手
段と、自機の空調状態情報と他機の空調状態情報より自
機の各構成機器の制御量を決定する手段と、前記制御量
に従い自機の各構成機器を駆動する手段とを設けること
によって、各室外機及び各室内機は他機からの指令に従
って動作するのではなく自律分散的に動作できるので、
既設の空気調和機の室外機あるいは室内機の１台以上を
交換する場合、交換前のものと通信プロトコルに互換性
があればモデルの新旧に拘わらず置き換えできる。Further, in order to achieve the above object, in another invention, in a separate type or multi-type air conditioner in which a control device having a microcomputer and a communication means is incorporated, each outdoor unit and each indoor unit is provided. Is a means for transmitting the air conditioning status information of its own device by broadcast communication to all outdoor units and indoor units other than its own device periodically and the air conditioning status information sent by broadcast communication from other devices selectively. Storage means for receiving and storing own device, means for determining control amount of each constituent device of own device from air conditioning state information of own device and air conditioning state information of other device, and each constituent device of own device according to the control amount By providing a means for driving, since each outdoor unit and each indoor unit can operate in an autonomous decentralized manner instead of operating according to a command from another unit,
When replacing one or more outdoor units or indoor units of an existing air conditioner, they can be replaced regardless of whether the model is old or new as long as the communication protocol is compatible with the one before the replacement.
【００１７】上記に加えて、室外機及び室内機に他の室
外機及び室内機のアドレスと重複しないように自機のア
ドレスを自動設定する手段を設けることにより、既設の
空気調和機に１台以上の室外機あるいは室内機を増設し
た場合でも既設の室外機及び室内機に影響を与えること
なく増設された室外機あるいは室内機は動作可能とな
る。In addition to the above, by providing the outdoor unit and the indoor unit with means for automatically setting the address of the own unit so as not to overlap with the addresses of other outdoor units and the indoor units, one unit can be installed in the existing air conditioner. Even when the above outdoor unit or indoor unit is added, the added outdoor unit or indoor unit can operate without affecting the existing outdoor unit and indoor unit.
【００１８】さらに、室外機及び室内機に他機が故障し
た場合に記憶装置に記憶された当該機の空調制御情報を
消去するする手段を設けることにより、複数台の室外機
の内の少なくとも１台の室外機あるいは複数台の室内機
の内の少なくとも１台の室内機が故障した場合にでも当
該機を除く室外機及び室外機で空調動作を継続できる。Furthermore, at least one of the plurality of outdoor units is provided by providing the outdoor unit and the indoor unit with means for erasing the air conditioning control information of the unit stored in the storage device when another unit fails. Even when one outdoor unit or at least one indoor unit among the plurality of indoor units fails, the air conditioning operation can be continued in the outdoor unit and the outdoor unit excluding the unit.
【００１９】[0019]
【発明の実施の形態】以下、本発明の一実施形態につい
て図面を用いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【００２０】図１は本発明の一実施形態を用いた空気調
和機の制御ブロック構成図である。同図に示される空気
調和機は、１台の室外機１０にこれと分離された３台の
室内機１ａ、１ｂ、１ｃが接続してなるマルチ形空調機
の例であるが、室内機１ａ、１ｂ、１ｃはそれぞれタイ
プが異なる。室内機１ａは、電子膨張弁２、送風機４、
風向板５といった制御機器と、これを駆動する機器駆動
手段６と、コンテンション方式の通信プロトコルをもつ
通信手段７ａを備えている。これに対し、室内機１ｂ
は、基本的構成は室内機１ａと同じであるが、通信手段
７ｂの通信プロトコルがポーリング／セレクティング方
式である点が異なる。また、室内機１ｃは室内機１ａと
比べて制御機器として電子膨張弁の代わりに電磁弁３を
備えている点が異なり、通信プロトコルは上記のいずれ
かの方式が用いられる。通信手段７ａ、７ｂからの情報
に基づき図示しないマイコンにより機器駆動手段６は各
機器を駆動制御する。FIG. 1 is a control block diagram of an air conditioner using an embodiment of the present invention. The air conditioner shown in the figure is an example of a multi-type air conditioner in which one outdoor unit 10 is connected to three indoor units 1a, 1b, and 1c separated from each other. 1b and 1c have different types. The indoor unit 1a includes an electronic expansion valve 2, a blower 4,
It is provided with a control device such as the wind direction plate 5, a device driving means 6 for driving the same, and a communication means 7a having a contention type communication protocol. On the other hand, the indoor unit 1b
Has the same basic configuration as the indoor unit 1a, except that the communication protocol of the communication means 7b is a polling / selecting method. Further, the indoor unit 1c is different from the indoor unit 1a in that an electromagnetic valve 3 is provided as a control device instead of the electronic expansion valve, and any one of the above methods is used as a communication protocol. Based on the information from the communication means 7a and 7b, the device driving means 6 drives and controls each device by a microcomputer (not shown).
【００２１】一方、室外機１０は、圧縮機１１、電子膨
張弁１２、送風機１３、四方切換弁１４といった制御機
器と、これらを駆動する機器駆動手段１５と、コンテン
ション方式の通信プロトコルをもつ通信手段１９を備え
ており、加えて、室内機の制御方式を決定する空調制御
決定手段１６、室内機の構成機器制御量決定手段１７、
及び室外機の構成機器制御量決定手段１８を備えてい
る。On the other hand, the outdoor unit 10 includes control devices such as a compressor 11, an electronic expansion valve 12, a blower 13, and a four-way switching valve 14, device driving means 15 for driving them, and communication having a contention type communication protocol. A unit 19 is provided, and in addition, an air conditioning control determination unit 16 that determines the control method of the indoor unit, a constituent device control amount determination unit 17 of the indoor unit,
And an outdoor unit constituent device control amount determining means 18.
【００２２】また、室外機１０と室内機１ａ、１ｃの通
信手段７ａとは通信線９で接続されているが、室内機１
ｂについてはポーリング／セレクティング方式の通信プ
ロトコルをコンテンション方式の通信プロトコルに変換
する通信プロトコル変換装置８を介して、通信手段７ｂ
は通信線９に接続される。そのため、通信線９上での情
報の送信／受信はすべてコンテンション方式の通信プロ
トコルで行われる。The outdoor unit 10 and the communication means 7a of the indoor units 1a and 1c are connected by a communication line 9, but the indoor unit 1
As for b, the communication means 7b is provided via the communication protocol converter 8 which converts the polling / selecting communication protocol into the contention communication protocol.
Is connected to the communication line 9. Therefore, all transmission / reception of information on the communication line 9 is performed by the contention communication protocol.
【００２３】図２は略図１と同一の空気調和機の冷凍サ
イクル構成図である。室内機１ａ、１ｂ、１ｃには前述
の制御機器以外の構成機器として熱交換機２０が備えら
れており、さらに、室内機１ｃにはキャピラリチューブ
２１が備えられている。キャピラリチューブ２１は単独
又は電磁弁３と組み合わせることにより電子膨張弁２と
同じ役割を担う。FIG. 2 is the same refrigeration cycle configuration diagram of the air conditioner as in FIG. The indoor units 1a, 1b, 1c are provided with a heat exchanger 20 as a component other than the above-described control device, and further, the indoor unit 1c is provided with a capillary tube 21. The capillary tube 21 plays the same role as the electronic expansion valve 2 alone or in combination with the solenoid valve 3.
【００２４】一方、室外機１０には前述の制御装置以外
の構成機器として熱交換機２４とアキュームレータ２５
を備えている。また、室外機１０と室内機１ａ、１ｂ、
１ｃは冷媒配管２２と分岐管２３で接続されている。On the other hand, the outdoor unit 10 has a heat exchanger 24 and an accumulator 25 as components other than the above-mentioned control device.
It has. In addition, the outdoor unit 10 and the indoor units 1a, 1b,
1c is connected to a refrigerant pipe 22 and a branch pipe 23.
【００２５】以上のように構成された空気調和機におい
て、以下その動作について説明する。室外機１０及び室
内機１ａ、１ｂ、１ｃに電源が供給され通信可能な状態
になると、室内機１ａ、１ｂ、１ｃは、通信手段７ａ、
７ｂによりそれぞれ自機の構成機器情報を室外機１０へ
送信する。例えば、室内機１ａ、１ｂのように電子膨張
弁を備えている室内機は図３（ａ）に示すような構成機
器情報を送信し、室内機１ｃのように電子膨張弁を備え
ていない室内機は図３（ｂ）に示すような構成機器情報
を送信する。なお、室内機１ｂはポーリング／セレクテ
ィング方式の通信プロトコルで送信するが、通信プロト
コル変換装置８によってコンテンション方式の通信プロ
トコルに変換されるため問題なく室外機１０に情報を渡
すことができ、その後の送信／受信においても特に通信
プロトコルの違いを意識する必要はない。The operation of the air conditioner configured as above will be described below. When power is supplied to the outdoor unit 10 and the indoor units 1a, 1b, 1c and communication becomes possible, the indoor units 1a, 1b, 1c are connected to the communication means 7a,
7b, the constituent device information of each device is transmitted to the outdoor unit 10. For example, an indoor unit having an electronic expansion valve like the indoor units 1a and 1b transmits component device information as shown in FIG. 3A, and an indoor unit having no electronic expansion valve like the indoor unit 1c. The machine transmits component device information as shown in FIG. Although the indoor unit 1b transmits by the polling / selecting system communication protocol, the communication protocol conversion device 8 converts the information to the contention system communication protocol so that the information can be passed to the outdoor unit 10 without any problem. It is not necessary to be aware of the difference in communication protocol even in the transmission / reception of.
【００２６】構成機器情報を送信した室内機１ａ、１
ｂ、１ｃは次に自機の空調状態情報を室外機１０へ送信
する。室内機の空調状態情報は図４に示すように自機が
測定する各種温度の測定情報と、利用者が設定した室温
などの設定情報から成り、この情報はその後も定期的あ
るいは状態変化が生じた場合にそれぞれの室内機から室
外機へ送信するものである。The indoor units 1a, 1 which have transmitted the constituent device information
b and 1c next transmit the air-conditioning state information of their own to the outdoor unit 10. As shown in Fig. 4, the air-conditioning status information of the indoor unit consists of measurement information of various temperatures measured by itself and setting information such as room temperature set by the user. In the case of the above, the data is transmitted from each indoor unit to the outdoor unit.
【００２７】一方、室内機１ａ、１ｂ、１ｃが送信した
構成機器情報は室外機１０の通信手段１９を介して空調
制御決定手段１６に渡される。空調制御決定手段１６で
は構成機器情報よりそれぞれの室内機を電子、電磁膨脹
弁の相違によりいかに制御すべきか等を決定し、室内機
の構成機器制御量決定手段１７に知らせる。また、室内
機１ａ、１ｂ、１ｃが送信した空調状態情報は通信手段
１９を介しは室内機の構成機器制御量決定手段１７に渡
され、室内機の構成機器制御量決定手段１７では室内機
の空調状態情報と空調制御決定手段１６より知らされた
制御方式により、室内機の構成機器の制御量を決定し通
信手段１９を介してそれぞれの室内機１ａ、１ｂ、１ｃ
に送信する。例えば、室内機の空調状態情報により当該
室内機が停止であると判ると、電子膨張弁を備えている
室内機に対しては、電子膨張弁の制御量を最低のステッ
プ（例えば４０ステップ）と決定し送信するが、電子膨
張弁を備えていない室内機に対しては、電磁弁の制御量
をＯＦＦと決定し送信する。図５に室外機が送信する室
内機の構成機器の制御量の例を示すが、膨脹弁の種類や
サイズが相違する場合はそれに応じて制御量を変える
が、図示は省略する。次に、室外機１０が送信した構成
機器の制御量は各室内機の通信手段７ａ、７ｂを介して
機器駆動手段６に渡され、各室内機の機器駆動手段６は
渡された制御量に従い各制御機器を駆動する。On the other hand, the component device information transmitted by the indoor units 1a, 1b, 1c is passed to the air conditioning control determining means 16 via the communication means 19 of the outdoor unit 10. The air-conditioning control determination means 16 determines how to control each indoor unit from the constituent device information by the difference between electronic and electromagnetic expansion valves, and informs the indoor device constituent device control amount determination means 17. Further, the air-conditioning state information transmitted by the indoor units 1a, 1b, 1c is passed to the constituent device control amount determining unit 17 of the indoor unit via the communication unit 19, and the constituent device control amount determining unit 17 of the indoor unit notifies the indoor unit of the indoor unit. Based on the air-conditioning state information and the control method notified from the air-conditioning control determination means 16, the control amount of the constituent equipment of the indoor unit is determined and the indoor units 1a, 1b, 1c are respectively transmitted via the communication means 19.
Send to For example, when it is determined from the air conditioning state information of the indoor unit that the indoor unit is stopped, the control amount of the electronic expansion valve is set to the minimum step (for example, 40 steps) for the indoor unit equipped with the electronic expansion valve. The control amount of the solenoid valve is determined to be OFF and transmitted to the indoor unit that does not have the electronic expansion valve. FIG. 5 shows an example of the control amount of the constituent devices of the indoor unit transmitted by the outdoor unit. If the type or size of the expansion valve is different, the control amount is changed accordingly, but the illustration is omitted. Next, the control amount of the constituent device transmitted by the outdoor unit 10 is passed to the device driving unit 6 via the communication units 7a and 7b of each indoor unit, and the device driving unit 6 of each indoor unit follows the passed control amount. Drives each control device.
【００２８】以上のように、室外機に室内機の構成機器
制御量決定手段を備えることにより、タイプの異なる室
内機であっても通信プロトコルを合わせる手段さえあれ
ば、同じように室外機に接続可能である。As described above, since the outdoor unit is provided with the constituent device control amount determining unit of the indoor unit, even if the indoor units of different types are connected to the outdoor unit in the same manner as long as there is a unit for adjusting the communication protocol. It is possible.
【００２９】次に、本発明の他の実施形態について図面
を用いて説明する。図６は本発明の他の実施形態を用い
た空気調和機の制御ブロック構成図である。同図に示さ
れる空気調和機は１台の室外機１０ａに３台の室内機１
ｄ、１ｅ、１ｆが接続してなるマルチ形空調機である
が、室内機１ｄ、１ｅと室内機１ｆとはタイプが異な
る。室内機１ｄ、１ｅは電子膨張弁２、送風機４、風向
板５といった制御機器と、これらを駆動する機器駆動手
段６と、各制御機器の制御量を決定する構成機器制御量
決定手段１７と、通信線９で接続されている他機全てに
ブロードキャスト通信可能な通信手段７ｃとを備えてい
る。室内機１ｆは室内機１ｄ、１ｅと比べて制御機器と
して電子膨張弁の代わりに電磁弁３を備えている点が異
なる。なお、室内機１ｄ、１ｅ、１ｆの通信手段７ｃは
全て同一の通信プロトコルを備えている。Next, another embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a control block configuration diagram of an air conditioner using another embodiment of the present invention. The air conditioner shown in the figure has one outdoor unit 10a and three indoor units 1
Although it is a multi-type air conditioner in which d, 1e, and 1f are connected, the indoor units 1d, 1e and the indoor unit 1f have different types. The indoor units 1d and 1e include control devices such as the electronic expansion valve 2, the blower 4, and the wind direction plate 5, device driving means 6 for driving them, and constituent device control amount determining means 17 for determining the control amount of each control device. The communication means 7c capable of performing broadcast communication is provided to all the other devices connected by the communication line 9. The indoor unit 1f is different from the indoor units 1d and 1e in that a solenoid valve 3 is provided as a control device instead of the electronic expansion valve. The communication means 7c of the indoor units 1d, 1e, 1f are all provided with the same communication protocol.
【００３０】一方、室外機１０ａは、圧縮機１１、電子
膨張弁１２、送風機１３、四方切換弁１４といった制御
機器と、これらを駆動する機器駆動手段１５と、各制御
機器の制御量を決定する構成機器制御量決定手段１８
と、ブロードキャスト通信可能な通信手段１９ａを備え
ている。On the other hand, the outdoor unit 10a determines control devices such as the compressor 11, the electronic expansion valve 12, the blower 13, and the four-way switching valve 14, the device driving means 15 for driving them, and the control amount of each control device. Constituent equipment control amount determining means 18
And communication means 19a capable of performing broadcast communication.
【００３１】なお、本空気調和機の冷凍サイクル構成は
図２と同等であり、室内機１ｄ、１ｅ、１ｆが図２の１
ａ、１ｂ、１ｃに室外機１０ａが図２の室外機１０にそ
れぞれ対応している。The refrigeration cycle structure of this air conditioner is the same as that shown in FIG. 2, and the indoor units 1d, 1e, 1f are the same as those shown in FIG.
The outdoor unit 10a corresponds to the outdoor units 10 of a, 1b, and 1c, respectively.
【００３２】以上のように構成した空気調和機におい
て、以下その動作について説明する。室外機１０ａ、及
び室内機１ｄ、１ｅ、１ｆに電源が供給され通信可能な
状態になると、室内機１ｄ、１ｅ、１ｆはそれぞれ、図
３に示すような自機の空調状態情報をブロードキャスト
通信で室外機１０ａ及び自機以外の室内機へ送信する。
また、室外機１０も、図７に示すような自機の空調状態
情報をブロードキャスト通信で各室内機１ｄ、１ｅ、１
ｆへ送信する。これら各室内機及び室外機の空調状態情
報はその後も定期的あるいは状態変化が生じた場合に、
各室内機及び室外機がブロードキャスト通信で送信する
ものである。The operation of the air conditioner configured as described above will be described below. When power is supplied to the outdoor unit 10a and the indoor units 1d, 1e, 1f and the communication becomes possible, the indoor units 1d, 1e, 1f respectively broadcast the air conditioning state information of their own units as shown in FIG. The data is transmitted to the outdoor unit 10a and indoor units other than the own unit.
Further, the outdoor unit 10 also broadcasts the air conditioning state information of its own as shown in FIG. 7 to each of the indoor units 1d, 1e, 1
Send to f. The air-conditioning status information for each indoor unit and outdoor unit will be
Each indoor unit and outdoor unit transmit by broadcast communication.
【００３３】各室内機の構成機器制御量決定手段１７ａ
又は１７ｂは、通信手段７ｃを介して受け取った室外機
１０の空調状態情報をと他室内機の空調状態情報と自機
の空調状態情報を記憶手段に記憶し、その情報と自機の
制御機器の制御量を決定し機器駆動手段６に渡す。ただ
し、室内機１ｄ、１ｅと室内機１ｆとでは制御機器構成
が異なるため、それぞれ構成機器制御量決定手段１７ａ
と１７ｂでは制御量決定アルゴリズムが異なる。次に、
機器駆動手段１５は受け取った制御量に従い自機の制御
機器を駆動する。The constituent device control amount determining means 17a of each indoor unit
Alternatively, 17b stores the air conditioning state information of the outdoor unit 10 received via the communication means 7c, the air conditioning state information of other indoor units, and the air conditioning state information of the own device in the storage means, and the information and the control device of the own device. Control amount is determined and passed to the device driving means 6. However, since the indoor device 1d, 1e and the indoor unit 1f have different control device configurations, the configuration device control amount determining means 17a, respectively.
And 17b have different control amount determination algorithms. next,
The device driving means 15 drives its own control device in accordance with the received control amount.
【００３４】一方、室外機１０の構成機器制御量決定手
段１８は通信手段１９ａを介して受け取った各室内機の
空調状態情報と自機の空調状態情報より自機の制御機器
の制御量を決定し機器駆動手段１５に渡す。機器駆動手
段１５は受け取った制御量に従い自機の制御機器を駆動
する。また、室外機及び室内機に他の室外機及び室内機
のアドレスと重複しないように自機のアドレスを自動設
定する手段を設けられ、該手段により、既設の空気調和
機に１台以上の室外機あるいは室内機を増設した場合で
も既設の室外機及び室内機に影響を与えることなく増設
された室外機あるいは室内機を動作することができる。
さらに、室外機及び室内機に他機が故障した場合に記憶
装置に記憶された当該機の空調制御情報を消去するする
手段を設けることにより、複数台の室外機の内の少なく
とも１台の室外機あるいは複数台の室内機の内の少なく
とも１台の室内機が故障した場合にでも当該機を除く室
外機及び室外機で空調動作を継続できる。On the other hand, the constituent device control amount determining means 18 of the outdoor unit 10 determines the control amount of the controlling device of the own device from the air conditioning state information of each indoor unit and the air conditioning state information of the own device received via the communication means 19a. And passes it to the device driving means 15. The device driving means 15 drives its own control device in accordance with the received control amount. Further, the outdoor unit and the indoor unit are provided with means for automatically setting their own addresses so as not to overlap with the addresses of other outdoor units and indoor units, and by this means, one or more outdoor units are installed in the existing air conditioner. Even when the outdoor unit or the indoor unit is added, the added outdoor unit or the indoor unit can be operated without affecting the existing outdoor unit and the indoor unit.
Further, by providing a means for erasing the air conditioning control information stored in the storage device in the outdoor unit and the indoor unit when another unit fails, at least one outdoor unit among the plurality of outdoor units is provided. Even when one unit or at least one of the plurality of indoor units fails, the air conditioning operation can be continued in the outdoor unit and the outdoor unit excluding the unit.
【００３５】以上のように、室外機及び各室内機が他機
の空調状態情報と自機の空調状態情報より自機の制御機
器の制御量を決定できるように構成することにより、室
外機及び各室内機は、他機の制御方式に影響されず自律
分散的に動作できるので、タイプの異なる室外機、室内
機であっても任意に組み合わせることができる。As described above, the outdoor unit and each indoor unit are configured so that the control amount of the control device of the own unit can be determined from the air conditioning state information of the other unit and the air conditioning state information of the own unit. Since each indoor unit can operate in an autonomous decentralized manner without being affected by the control method of other units, it is possible to arbitrarily combine even different types of outdoor units and indoor units.
【００３６】なお上記各実施形態において、各構成機器
制御量決定手段は、空調機の空調能力を制限する場合
は、送信されてくる空調情報に基づき空調機を縮退制御
する。また、少なくとも室内機、室外機、室内機と室外
機の冷媒通路である冷媒配管を有する既設の空気調和機
において、該空気調和機を室内機又は室外機を交換する
ことにより、リニューアル対応形空気調和機とすること
ができる。In each of the above-mentioned embodiments, each constituent device control amount determining means performs degeneration control of the air conditioner based on the transmitted air conditioning information when limiting the air conditioning capacity of the air conditioner. Further, in an existing air conditioner having at least an indoor unit, an outdoor unit, and a refrigerant pipe that is a refrigerant passage between the indoor unit and the outdoor unit, by replacing the indoor unit or the outdoor unit with the air conditioner, renewable air It can be a harmony machine.
【００３７】また、上記実施形態については、少なくと
も１台の室外機に複数の室内機が接続されたマルチ形空
調機の例で説明したが、本発明は、これに限定されるこ
となく、上記室外機及び室内機を１対１で対応させたセ
パレート形空調機に適用し得ることは勿論である。Further, although the above embodiment has been described by taking the example of the multi-type air conditioner in which a plurality of indoor units are connected to at least one outdoor unit, the present invention is not limited to this, and the above Of course, it can be applied to a separate type air conditioner in which the outdoor unit and the indoor unit are in a one-to-one correspondence.
【００３８】[0038]
【発明の効果】以上説明したように本発明によれば、セ
パレート形空気調和機又はマルチ形空気調和機における
室外機に、室内機から送信される空調状態情報に基づき
室内機の機器駆動手段の制御量を決定する制御手段を備
えたり、室外機及び室内機に、それぞれの空調状態情報
を定期的に他の室外機、室内機に送信する自律分散プロ
トコル通信手段を備え、制御手段は空調状態情報に基づ
き自機の制御量を決定するようにしたことにより、タイ
プの異なる室外機、室内機であっても任意に組み合わせ
て空気調和機を構成でき、既設の空気調和機の室外機及
び室内機の一部をリニューアルする際、交換後の室外機
又は室内機が交換前の室外機又は室内機とタイプが異な
っていても問題なく空気調和機としての動作が可能とな
り、また、既設の空気調和機に室外機又は室内機を増設
する場合にも、増設する室外機又は室内機はそのタイプ
に拘わらず動作可能となる。As described above, according to the present invention, the equipment driving means of the indoor unit is controlled by the outdoor unit in the separate type air conditioner or the multi-type air conditioner based on the air conditioning state information transmitted from the indoor unit. The outdoor unit and the indoor unit are equipped with a control unit that determines the control amount, and the outdoor unit and the indoor unit are equipped with an autonomous distributed protocol communication unit that periodically sends the respective air conditioning state information to the other outdoor unit and the indoor unit. By determining the control amount of the own machine based on the information, it is possible to configure the air conditioner by arbitrarily combining even outdoor units and indoor units of different types. When part of the unit is renewed, it will be possible to operate as an air conditioner without problems even if the type of outdoor unit or indoor unit after replacement is different from the type of outdoor unit or indoor unit before replacement. When adding the outdoor unit or the indoor unit to the gas conditioner also, the outdoor unit or the indoor unit to the extension is operable regardless of its type.
【図１】本発明に係る空気調和機の１実施形態の制御ブ
ロック構成図FIG. 1 is a control block configuration diagram of an embodiment of an air conditioner according to the present invention.
【図２】図１に示す空気調和機と同様の冷凍サイクル構
成図FIG. 2 is a configuration diagram of a refrigeration cycle similar to that of the air conditioner shown in FIG.
【図３】図１に示す室内機の構成機器情報を示す図表FIG. 3 is a table showing component device information of the indoor unit shown in FIG.
【図４】図１に示す室内機の空調状態情報を示す図表FIG. 4 is a table showing air conditioning state information of the indoor unit shown in FIG.
【図５】室内機の構成機器の制御量の例を示す図表FIG. 5 is a chart showing an example of control amounts of constituent devices of an indoor unit.
【図６】本発明の他の実施形態の空気調和機の制御ブロ
ック構成図FIG. 6 is a control block configuration diagram of an air conditioner according to another embodiment of the present invention.
【図７】図６に示す室外機の空調状態情報を示す示す図
表FIG. 7 is a chart showing air conditioning state information of the outdoor unit shown in FIG.
１ａ−１ｆ …室内機、２ …電子膨張弁、３ …電磁
弁、４ …送風機、５…風向板、６ …機器駆動手段 ７ａ−７ｃ …通信手段、８ …通信プロトコル変換装
置、９ …通信線、１０、１０ａ…室外機、１１…圧縮
機 １２…電子膨張弁、１３…送風機、１４…四方切換弁、
１５…機器駆動手段、１６…空調制御決定手段 １７、１７ａ、１７ｂ…室内機の構成機器制御量決定手
段、１８…室外機の構成機器制御量決定手段 １９、１９ａ…通信手段、２０…熱交換機、２１…キャ
ピラリチューブ、２２…冷媒配管、２３…分岐管 ２４…熱交換機、２５…アキュームレータ1a-1f ... Indoor unit, 2 ... Electronic expansion valve, 3 ... Solenoid valve, 4 ... Blower, 5 ... Wind direction plate, 6 ... Device driving means 7a-7c ... Communication means, 8 ... Communication protocol conversion device, 9 ... Communication line 10, 10a ... Outdoor unit, 11 ... Compressor 12 ... Electronic expansion valve, 13 ... Blower, 14 ... Four-way switching valve,
15 ... Equipment driving means, 16 ... Air conditioning control determining means 17, 17a, 17b ... Indoor equipment constituent equipment control amount determining means, 18 ... Outdoor equipment constituent equipment control amount determining means 19, 19a ... Communication means, 20 ... Heat exchanger , 21 ... Capillary tube, 22 ... Refrigerant pipe, 23 ... Branch pipe 24 ... Heat exchanger, 25 ... Accumulator
Claims (8)
れるセパレート形空気調和機、又は少なくとも１台の室
外機に複数台の室内機が接続されるマルチ形空気調和機
であって、該室外機及び室内機が、冷媒膨脹手段等の構
成機器及び該構成機器を駆動する機器駆動手段を有する
空気調和機において、室外機は、室内機から送信される
情報に基づき室内機の機器駆動手段の制御量を決定する
制御手段を備えたことを特徴とする空気調和機。1. A separate air conditioner in which one indoor unit is connected to one outdoor unit, or a multi-type air conditioner in which a plurality of indoor units is connected to at least one outdoor unit. Then, in the air conditioner in which the outdoor unit and the indoor unit have constituent devices such as a refrigerant expansion unit and a device driving unit that drives the constituent devices, the outdoor unit is an indoor unit based on information transmitted from the indoor unit. An air conditioner comprising control means for determining a control amount of a device driving means.
室外機は、室内機の構成機器情報により制御方式を決定
し、該制御方式を前記制御手段に送信する空調制御決定
手段を有することを特徴とする空気調和機。2. The air conditioner according to claim 1,
The air conditioner, wherein the outdoor unit has an air-conditioning control determination unit that determines a control method based on information about constituent devices of the indoor unit and transmits the control method to the control unit.
複数台の室内機構成機器情報は、冷媒膨脹手段としての
電子膨脹弁、又はキャピラリーチューブに関する情報で
あることを特徴とする空気調和機。3. The air conditioner according to claim 2,
An air conditioner characterized in that the information on a plurality of indoor unit constituent devices is information on an electronic expansion valve or a capillary tube as a refrigerant expansion means.
気調和機において、室外機又は室内機は主たる通信プロ
トコル手段により通信され、該主たるプロトコルと異な
るプロトコル通信手段を有する室外機又は室内機は、プ
ロトコル変換手段を有することを特徴とする空気調和
機。4. The air conditioner according to any one of claims 1 to 3, wherein the outdoor unit or the indoor unit is communicated by a main communication protocol unit, and the outdoor unit or the indoor unit has a protocol communication unit different from the main protocol. Is an air conditioner having protocol conversion means.
気調和機において、前記制御手段は、室内機から取り込
んだ室内機空調情報により空調能力を制限する縮退制御
を行うことを特徴とする空気調和機。5. The air conditioner according to any one of claims 1 to 3, wherein the control means performs degeneration control that limits the air conditioning capacity based on the indoor unit air conditioning information taken from the indoor unit. Air conditioner.
れるセパレート形空気調和機、又は少なくとも１台の室
外機に複数台の室内機が接続されるマルチ形空気調和機
であって、該室外機及び室内機が、冷媒膨脹手段等の構
成機器及び該構成機器を駆動する機器駆動手段を有する
空気調和機において、各室外機及び室内機はそれぞれ、
機器駆動手段の制御量を決定する制御手段、及び空調状
態情報を定期的に他の室外機、室内機に送信する自律分
散プロトコル通信手段を備え、前記制御手段は前記空調
状態情報に基づき自機の制御量を決定することを特徴と
する空気調和機。6. A separate air conditioner in which one indoor unit is connected to one outdoor unit, or a multi-type air conditioner in which a plurality of indoor units is connected to at least one outdoor unit. In the air conditioner in which the outdoor unit and the indoor unit each have a component device such as a refrigerant expansion unit and a device drive unit that drives the component device, each outdoor unit and the indoor unit are respectively
A control means for determining the control amount of the device driving means, and an autonomous distributed protocol communication means for periodically transmitting the air-conditioning state information to other outdoor units and indoor units, the control means being based on the air-conditioning state information. An air conditioner characterized by determining the control amount of the air conditioner.
とも１台の室内機が追加される場合、追加された室外機
又は室内機が自動的に自機のアドレスを設定し、空調制
御を行う手段を備えたことを特徴とする請求項１又は６
記載の空気調和機。7. When at least one outdoor unit or at least one indoor unit is added, the added outdoor unit or indoor unit automatically sets its own address and performs air conditioning control. 7. The method according to claim 1, further comprising:
The air conditioner as described.
外機が故障した場合、該故障を検知する手段と、該検知
結果により自動的に故障した室内機又は室外機を離脱
し、空調制御を行う手段を備えたことを特徴とする請求
項７記載の空気調和機。8. When at least one indoor unit or one outdoor unit fails, a means for detecting the failure and the indoor unit or outdoor unit that has automatically failed according to the detection result are disconnected, and air conditioning control is performed. The air conditioner according to claim 7, further comprising means for performing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8139893A JPH09318142A (en) | 1996-06-03 | 1996-06-03 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8139893A JPH09318142A (en) | 1996-06-03 | 1996-06-03 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09318142A true JPH09318142A (en) | 1997-12-12 |
Family
ID=15256070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8139893A Pending JPH09318142A (en) | 1996-06-03 | 1996-06-03 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09318142A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999031444A1 (en) * | 1997-12-16 | 1999-06-24 | Matsushita Electric Industrial Co., Ltd. | Airconditioner using inflammable refrigerant |
| EP1267131A2 (en) * | 2001-06-11 | 2002-12-18 | Lg Electronics Inc. | Device for controlling expansion valve in multi air condition system |
| KR100379496B1 (en) * | 2000-07-05 | 2003-04-10 | 엘지전자 주식회사 | Method and apparatus for driving of multitype air conditioner |
| KR100382504B1 (en) * | 2001-05-19 | 2003-05-09 | 엘지전자 주식회사 | Pipe-search-Methode of multi type air-conditioner |
| CN1330908C (en) * | 2005-09-15 | 2007-08-08 | 珠海格力电器股份有限公司 | Multi-split air conditioner unit and its network communication method |
| CN100465535C (en) * | 2004-11-13 | 2009-03-04 | 珠海格力电器股份有限公司 | Fixed-frequency multiple air conditioner set |
| WO2016111039A1 (en) * | 2015-01-08 | 2016-07-14 | 三菱電機株式会社 | Outdoor unit, indoor unit, air conditioner, induction heating cooking heater, and refrigerator |
| WO2019186619A1 (en) * | 2018-03-26 | 2019-10-03 | 三菱電機株式会社 | Air conditioning communication system, outdoor unit, air conditioning communication method, and program |
| CN114857738A (en) * | 2022-05-30 | 2022-08-05 | 美的集团武汉暖通设备有限公司 | Operation control method of outdoor unit, operation control method of indoor unit and air conditioner |
-
1996
- 1996-06-03 JP JP8139893A patent/JPH09318142A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571575B1 (en) | 1997-12-16 | 2003-06-03 | Matsushita Electric Industrial Co., Ltd. | Air conditioner using inflammable refrigerant |
| WO1999031444A1 (en) * | 1997-12-16 | 1999-06-24 | Matsushita Electric Industrial Co., Ltd. | Airconditioner using inflammable refrigerant |
| US6550273B2 (en) | 1997-12-16 | 2003-04-22 | Matsushita Electric Industrial Co., Ltd. | Air conditioner using flammable refrigerant |
| KR100379496B1 (en) * | 2000-07-05 | 2003-04-10 | 엘지전자 주식회사 | Method and apparatus for driving of multitype air conditioner |
| KR100382504B1 (en) * | 2001-05-19 | 2003-05-09 | 엘지전자 주식회사 | Pipe-search-Methode of multi type air-conditioner |
| EP1267131A3 (en) * | 2001-06-11 | 2004-03-10 | Lg Electronics Inc. | Device for controlling expansion valve in multi air condition system |
| EP1267131A2 (en) * | 2001-06-11 | 2002-12-18 | Lg Electronics Inc. | Device for controlling expansion valve in multi air condition system |
| CN100465535C (en) * | 2004-11-13 | 2009-03-04 | 珠海格力电器股份有限公司 | Fixed-frequency multiple air conditioner set |
| CN1330908C (en) * | 2005-09-15 | 2007-08-08 | 珠海格力电器股份有限公司 | Multi-split air conditioner unit and its network communication method |
| WO2016111039A1 (en) * | 2015-01-08 | 2016-07-14 | 三菱電機株式会社 | Outdoor unit, indoor unit, air conditioner, induction heating cooking heater, and refrigerator |
| JPWO2016111039A1 (en) * | 2015-01-08 | 2017-07-27 | 三菱電機株式会社 | Outdoor unit, indoor unit, air conditioner, IH cooking heater, and refrigerator |
| WO2019186619A1 (en) * | 2018-03-26 | 2019-10-03 | 三菱電機株式会社 | Air conditioning communication system, outdoor unit, air conditioning communication method, and program |
| JPWO2019186619A1 (en) * | 2018-03-26 | 2020-10-22 | 三菱電機株式会社 | Air conditioning communication system, outdoor unit, air conditioning communication method, and program |
| CN114857738A (en) * | 2022-05-30 | 2022-08-05 | 美的集团武汉暖通设备有限公司 | Operation control method of outdoor unit, operation control method of indoor unit and air conditioner |
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