JP3784909B2 - Multi-type air conditioner - Google Patents

Multi-type air conditioner Download PDF

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Publication number
JP3784909B2
JP3784909B2 JP04982897A JP4982897A JP3784909B2 JP 3784909 B2 JP3784909 B2 JP 3784909B2 JP 04982897 A JP04982897 A JP 04982897A JP 4982897 A JP4982897 A JP 4982897A JP 3784909 B2 JP3784909 B2 JP 3784909B2
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Prior art keywords
controller
parent
function
outdoor
unit
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Expired - Lifetime
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JP04982897A
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Japanese (ja)
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JPH10232043A (en
Inventor
隆之 小林
成治 近藤
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は複数台の室外ユニットを冷媒回路に対して並列に接続してなるマルチ型空気調和機に関する。
【０００２】
【従来の技術】
従来のマルチ型空気調和機の１例が図２に示されている。
複数台（図には３台のみが示されている）の室外ユニットＡ、Ｂ、Ｃは冷媒回路１、２に対して並列に接続され、これら冷媒回路１、２には図示しない複数台の室内ユニットが並列に接続されている。
【０００３】
これら室外ユニットＡ、Ｂ、Ｃの中の１台、例えば、室外ユニットＡは容量可変型圧縮機、ホットガスバイパス回路等の容量制御機構９を具えているが、他の室外ユニットＢ、Ｃは固定容量でオン・オフ運転される。
【０００４】
各室外ユニットＡ、Ｂ、ＣはそれぞれコントローラA3、B3、C3を具え、これらコントローラA3、B3、C3は信号線４で集中コントローラ５に渡り配線され、この集中コントローラ４は通信線６を介して図示しない室内コントローラに接続されている。
【０００５】
【発明が解決しようとする課題】
上記従来のマルチ型空気調和機においては、集中コントローラ５を別に設置し、この集中コントローラ５に複数台の室外ユニットＡ、Ｂ、ＣのコントローラA3、B3、C3を信号線４で渡り配線しているため、これらの据付作業が面倒であるのみならずコストが嵩むという問題があった。
【０００６】
また、容量制御機構９を具備する室外ユニットＡが故障した場合には、マルチ型空気調和機の容量制御が不能となるのでマルチ型空気調和機の全体が停止してしまうという問題があった。
【０００７】
【課題を解決するための手段】
本発明は上記課題を解決するために発明されたものであって、その要旨とするところは、それぞれコントローラを具備する複数台の室外ユニットを冷媒回路に対して並列に接続してなるマルチ型空気調和機において、上記各室外ユニットに各々容量制御機構を付設すると共に、上記各室外ユニットのコントローラにそれぞれ子機として機能する他の室外ユニットを集中コントロールする集中コントローラ機能と各コントローラが親機用又は子機用として機能するよう切り換える親・子切換手段とを具備させ、これら各コントローラ間を信号線で渡り配線し、上記複数台の室外ユニットの中の任意の１台を親機としてそのコントローラを上記親・子切換手段により親側に切り換えて集中コントローラとして機能させ、他の室外ユニットを子機としてそのコントローラを上記親・子切換手段により子側に切り換え可能となし、更に、上記複数台の室外ユニットの任意の１台のコントローラを上記親・子切換手段により親側に切り換えて親機としたとき、当該室外ユニットの容量制御機構を機能させることを特徴とするマルチ型空気調和機にある。
【０００９】
【発明の実施の形態】
本発明の実施形態が図１に示されている。
各室外ユニットＡ、Ｂ、Ｃにはそれぞれ容量制御機構９が付設されている。
そして、各室外ユニットＡ、Ｂ、ＣのコントローラA7、B7、C7はそれぞれ従来の子機用コントローラ機能と従来の集中コントローラ5 が有していた集中コントローラ機能を併せ具備するとともに親・子切換手段８を具えている。
【００１０】
しかして、室外ユニットＡ、Ｂ、Ｃの据付時、その１台、例えば、室外ユニットＡのコントローラA7をその親・子切換手段８を親側に切り換えることによって集中コントローラとして機能させると同時にその容量制御機構９を機能させ、他の室外ユニットＢ、ＣのコントローラB7、C7をその親・子切換手段８を子側のままに保持することによって従来の子機用コントローラとして機能させると同時にその容量制御機構９を機能させない。
【００１１】
次いで、コントローラA7、B7、C7を信号線４で渡り配線するとともにコントローラA7を通信線６を介して図示しない室内コントローラに接続する。
他の構成は図２に示す従来のものと同様であり、対応する部材には同じ符号を付してその説明を省略する。
【００１２】
かくして、室外ユニットＡは親機として機能し、子機として機能する室外ユニットＢ及びＣを集中コントロールする。
そして、室外ユニットＡの容量制御機構９やコントローラA7の集中コントローラ機能が故障した場合にはその親・子切換手段８を子側に切り換え、かつ、他の任意の１台の室外ユニット、例えば、ＢのコントローラB7を親・子切換手段８を親側に切換えるとともにそのコントローラB7を通信線６を介して室内コントローラに接続すれば、以後室外ユニットＢが親機として機能する。
【００１３】
【発明の効果】
本発明においては、それぞれコントローラを具備する複数台の室外ユニットを冷媒回路に対して並列に接続してなるマルチ型空気調和機において、各室外ユニットに各々容量制御機構を付設すると共に、各室外ユニットのコントローラにそれぞれ子機として機能する他の室外ユニットを集中コントロールする集中コントローラ機能と各コントローラが親機用又は子機用として機能するよう切り換える親・子切換手段とを具備させ、これら各コントローラ間を信号線で渡り配線し、複数台の室外ユニットの中の任意の１台を親機としてそのコントローラを親・子切換手段により親側に切り換えて集中コントローラとして機能させ、他の室外ユニットを子機としてそのコントローラを親・子切換手段により子側に切り換え可能となし、更に、複数台の室外ユニットの任意の１台のコントローラを親・子切換手段により親側に切り換えて親機としたとき、室外ユニットの容量制御機構を機能させるようにしたため、従来の集中コントローラが不要となるので、そのコストを節減できるとともに親機のコントローラが故障等により集中コントローラ機能を失ったとき他の１台の室外ユニットのコントローラを親・子切換手段により親側に切り換えることによってこの室外ユニットを親機として機能させることができる。
【００１４】
更に、各室外ユニットに各々容量制御機構を付設し、複数台の室外ユニットの任意の１台のコントローラを親・子切換手段により親側に切り換えて親機としたとき、当該室外ユニットの容量制御機構を機能させるので、親機が故障した場合でも他の室外ユニットを親機とすることによって空気調和機の運転停止を回避することができる。
【図面の簡単な説明】
【図１】本発明の実施形態を示す系統図である。
【図２】従来のマルチ型空気調和機の系統図である。
【符号の説明】
Ａ、Ｂ、Ｃ 室外ユニット
A7、B7、C7 コントローラ
８ 親・子切換手段
９ 容量制御機構
１、２ 冷媒回路
４ 信号線
６ 通信線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multi-type air conditioner in which a plurality of outdoor units are connected in parallel to a refrigerant circuit.
[0002]
[Prior art]
An example of a conventional multi-type air conditioner is shown in FIG.
A plurality of outdoor units A, B, and C (only three are shown in the figure) are connected in parallel to the refrigerant circuits 1 and 2, and the refrigerant circuits 1 and 2 Indoor units are connected in parallel.
[0003]
One of these outdoor units A, B, and C, for example, the outdoor unit A includes a capacity control mechanism 9 such as a variable capacity compressor and a hot gas bypass circuit, but the other outdoor units B and C On / off operation with fixed capacity.
[0004]
Each of the outdoor units A, B, and C includes controllers A3, B3, and C3. These controllers A3, B3, and C3 are wired to the centralized controller 5 through the signal line 4, and the centralized controller 4 is connected via the communication line 6. It is connected to an indoor controller (not shown).
[0005]
[Problems to be solved by the invention]
In the conventional multi-type air conditioner, a centralized controller 5 is installed separately, and a plurality of outdoor units A, B, and C controllers A3, B3, and C3 are connected to the centralized controller 5 through signal lines 4. Therefore, there is a problem that these installation operations are not only troublesome but also costly.
[0006]
Further, when the outdoor unit A having the capacity control mechanism 9 fails, there is a problem that the capacity control of the multi-type air conditioner becomes impossible and the entire multi-type air conditioner stops.
[0007]
[Means for Solving the Problems]
The present invention has been invented to solve the above-mentioned problems, and the gist of the present invention is to provide a multi-type air in which a plurality of outdoor units each having a controller are connected in parallel to a refrigerant circuit. In the harmony machine, each outdoor unit is provided with a capacity control mechanism, and the controller of each outdoor unit and a centralized controller function for centrally controlling other outdoor units that function as slave units, and each controller is used for the master unit or is and a parent-child switching 換手 stage for switching to act as a handset, between these respective controllers over wired with the signal line, the arbitrary one among the plurality of outdoor units as the master unit The controller is switched to the parent side by the above parent / child switching means to function as a centralized controller, and other outdoor units are None and be switched to the slave that controller by the parent-child switching means Te, further, the base unit any one controller of the plurality of outdoor units is switched to the master by the parent-child switching means The multi-type air conditioner is characterized in that the capacity control mechanism of the outdoor unit is made to function .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention is shown in FIG.
A capacity control mechanism 9 is attached to each of the outdoor units A, B, and C.
The controllers A7, B7, and C7 of the outdoor units A, B, and C have both the conventional controller function for the slave unit and the centralized controller function that the conventional centralized controller 5 had, and the parent / child switching means. Eight.
[0010]
Thus, when the outdoor units A, B and C are installed, one of them, for example, the controller A7 of the outdoor unit A is made to function as a centralized controller by switching its parent / child switching means 8 to the parent side, and at the same time its capacity The control mechanism 9 is made to function, and the controllers B7 and C7 of the other outdoor units B and C are made to function as a conventional controller for the slave unit by holding the parent / child switching means 8 on the child side, and at the same time the capacity thereof The control mechanism 9 is not functioned.
[0011]
Next, the controllers A7, B7, and C7 are wired over the signal line 4, and the controller A7 is connected to an indoor controller (not shown) via the communication line 6.
The other structure is the same as that of the conventional one shown in FIG. 2, and the corresponding members are denoted by the same reference numerals and description thereof is omitted.
[0012]
Thus, the outdoor unit A functions as a master unit and centrally controls the outdoor units B and C that function as slave units.
When the capacity control mechanism 9 of the outdoor unit A or the centralized controller function of the controller A7 fails, the parent / child switching means 8 is switched to the child side, and any other one outdoor unit, for example, When the controller B7 of B is switched to the parent / child switching means 8 to the parent side and the controller B7 is connected to the indoor controller via the communication line 6, the outdoor unit B functions as a parent device thereafter.
[0013]
【The invention's effect】
In the present invention, in a multi-type air conditioner in which a plurality of outdoor units each having a controller are connected in parallel to the refrigerant circuit, each outdoor unit is provided with a capacity control mechanism, and each outdoor unit controller is equipped with the other of the outdoor unit that functions as a slave unit, respectively a centralized control to the central controller function and the parent-child switching means for switching so that each controller functions as a master machine or slave machine, between the respective controllers Are connected by signal lines, and any one of a plurality of outdoor units is set as a master unit, and the controller is switched to the parent side by the parent / child switching means to function as a centralized controller. None and be switched to the slave that controller by parent-child switching means as the machine, further, a plurality When the master unit switches of any one controller of the outdoor unit to the master by the parent-child switching means, due to so as to function capacity control mechanism of the outdoor unit, the conventional centralized controller is not needed , The cost can be reduced, and when the controller of the master unit loses the centralized controller function due to failure or the like, the controller of the other one outdoor unit is switched to the parent side by the master / slave switching means. Can function as.
[0014]
Furthermore, when each outdoor unit is provided with a capacity control mechanism, and any one controller of the plurality of outdoor units is switched to the parent side by the parent / child switching means to be the parent machine, the capacity control of the outdoor unit is performed. it is possible to avoid the operation stop of the air conditioner by Runode caused to function mechanism, the other outdoor unit even when the base unit fails to base unit.
[Brief description of the drawings]
FIG. 1 is a system diagram showing an embodiment of the present invention.
FIG. 2 is a system diagram of a conventional multi-type air conditioner.
[Explanation of symbols]
A, B, C Outdoor unit
A7, B7, C7 Controller 8 Parent / child switching means 9 Capacity control mechanism 1, 2 Refrigerant circuit 4 Signal line 6 Communication line

Claims (1)

それぞれコントローラを具備する複数台の室外ユニットを冷媒回路に対して並列に接続してなるマルチ型空気調和機において、
上記各室外ユニットに各々容量制御機構を付設すると共に、
上記各室外ユニットのコントローラにそれぞれ子機として機能する他の室外ユニットを集中コントロールする集中コントローラ機能と各コントローラが親機用又は子機用として機能するよう切り換える親・子切換手段とを具備させ、
これら各コントローラ間を信号線で渡り配線し、
上記複数台の室外ユニットの中の任意の１台を親機としてそのコントローラを上記親・子切換手段により親側に切り換えて集中コントローラとして機能させ、他の室外ユニットを子機としてそのコントローラを上記親・子切換手段により子側に切り換え可能となし、
更に、上記複数台の室外ユニットの任意の１台のコントローラを上記親・子切換手段により親側に切り換えて親機としたとき、当該室外ユニットの容量制御機構を機能させることを特徴とするマルチ型空気調和機。 In a multi-type air conditioner in which a plurality of outdoor units each having a controller are connected in parallel to the refrigerant circuit,
Each of the outdoor units is provided with a capacity control mechanism,
And a parent-child switching 換手 stage for switching as a controller in the centralized controller function and which each controller the other of the outdoor unit that functions as a slave unit, respectively to concentrate control of the respective outdoor units to function as a for the master unit or slave unit then,
These controllers are wired with signal lines,
Any one of the plurality of outdoor units is used as a master unit, and the controller is switched to the parent side by the parent / child switching means to function as a centralized controller. It can be switched to the child side by the parent / child switching means,
Furthermore, when any one controller of the plurality of outdoor units is switched to the parent side by the parent / child switching means to be a parent machine , the capacity control mechanism of the outdoor unit is made to function. Type air conditioner .
JP04982897A 1997-02-18 1997-02-18 Multi-type air conditioner Expired - Lifetime JP3784909B2 (en)

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JP04982897A JP3784909B2 (en) 1997-02-18 1997-02-18 Multi-type air conditioner

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JPH10232043A JPH10232043A (en) 1998-09-02
JP3784909B2 true JP3784909B2 (en) 2006-06-14

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JP5830982B2 (en) * 2011-07-05 2015-12-09 ダイキン工業株式会社 Condensing unit set and refrigeration apparatus provided with the unit set

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