JP3851005B2 - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
JP3851005B2
JP3851005B2 JP33102198A JP33102198A JP3851005B2 JP 3851005 B2 JP3851005 B2 JP 3851005B2 JP 33102198 A JP33102198 A JP 33102198A JP 33102198 A JP33102198 A JP 33102198A JP 3851005 B2 JP3851005 B2 JP 3851005B2
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JP
Japan
Prior art keywords
air temperature
outside air
relay controller
outdoor
outdoor units
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.)
Expired - Fee Related
Application number
JP33102198A
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Japanese (ja)
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JP2000161753A (en
Inventor
崇治 天満
圭司 和田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to JP33102198A priority Critical patent/JP3851005B2/en
Publication of JP2000161753A publication Critical patent/JP2000161753A/en
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Publication of JP3851005B2 publication Critical patent/JP3851005B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、室外機が複数台設置された空気調和装置に関する。
【0002】
【従来の技術】
室外機が複数台設置された空気調和装置は、極めて大きな空調能力を必要とする場所に使用される。このような空気調和装置10においては、図2に示すように、外気温度に対して最適な制御を実現できるように、複数のそれぞれの室外機11に、外気温度を検出する外気温センサ12が個別に設置されている。
【0003】
各室外機11を制御する中継コントローラ13は、複数の外気温センサ12にて検出された外気温度のうち最も低い温度を選択し、この中継コントローラ13及び室外機11は、選択された最も低い外気温度に対応した制御、例えば暖房運転時における除霜転の制御を実施している。尚、図2中の符号14は室内機である。
【0004】
【発明が解決しようとする課題】
ところが、上記空気調和装置10では、複数の室外機11に外気温センサ12が個別に設置されているため外気温センサ12の個数が増大し、低コスト化を図ることができない。
【0005】
本発明の目的は、上述の事情を考慮してなされたものであり、外気温度に対応した制御を低コストにて実現できる空気調和装置を提供することにある。
【0006】
【課題を解決するための手段】
請求項1記載の発明は、室内機及び複数の室外機を有し、これら室内機及び複数の室外機が通信線を介して中継コントローラに接続され、この中継コントローラが、室外機の運転台数を決定し、各室外機の運転能力を制御する空気調和装置において、前記中継コントローラを室外に設置し、この中継コントローラに外気温度を検出可能とする外気温センサを設置し、前記中継コントローラが前記外気温センサの検出値から外気温度を読み取り、通信線を介して各室外機へ読み取った外気温度を送信可能にしたことを特徴とするものである。
【0007】
請求項1に記載の発明には、次の作用がある。
【0008】
外気温度を検出可能とする外気温センサが、複数の室外機に個別に設置されず、複数の室外機を制御する中継コントローラに設置されたことから、外気温センサの個数を減少でき、コストを低減できる。
【0009】
そして、中継コントローラが、この外気温センサにて検出された外気温度を通信線を介して各室外機へ送信するので、空気調和装置は、外気温度に対応した最適な制御を実施できる。
【0010】
また、外気温度を検出可能とする外気温センサが、複数の室外機を制御する中継コントローラに設置されたことから、この中継コントローラが、外気温センサにて検出された外気温度を、通信線を介して各室外機へ送信できるので、任意の室外機が故障しても、故障していない他の室外機は外気温度を取り込むことができ、外気温度に基づく最適な制御を実施できる。
【0011】
【発明の実施の形態】
以下、本発明の実施の形態を、図面に基づき説明する。
【0012】
図1は、本発明に係る空気調和装置の一実施の形態における構成を示す系統図である。
【0013】
この図1に示す空気調和装置20は、複数台の室内機21A、21B、21C及び21Dと、複数台の室外機22A、22B及び22Cと、1台の室外機コントローラとしての中継コントローラ23と、1個の外気温センサ24とを有して構成される。
【0014】
室内機21A〜Dは、同一の通信線25を介して中継コントローラ23に接続される。室外機22Aは通信線26Aを介し、又、室外機22Bは通信線26Bを介し、更に、室外機22Cは通信線26Cを介してそれぞれ中継コントローラ23に接続されている。
【0015】
この中継コントローラ23は、室内機21A〜Dの運転台数に対応させて室外機22A〜Cの運転台数を決定し、更に、各室外機22A〜Cの運転能力を制御する。この中継コントローラ23は、本実施の形態では室外に設置されている。上記外気温センサ24は中継コントローラ23に設置されて、外気温度を検出可能とする。中継コントローラ23は、外気温センサ24の検出値から外気温度を読み取り、通信線26Aを介して室外機22Aへ、通信線26Bを介して室外機22Bへ、、通信線26Cを介して室外機22Cへ、それぞれ、読み取った外気温度を送信する。
【0016】
中継コントローラ23及び運転中の室外機22A〜Cは、外気温度に対応した最適な制御を実施する。例えば、空気調和装置20の暖房運転時において、外気温度が所定温度(例えば5℃)以下となったときに除霜運転を適宜実施させる。又、空気調和装置20の冷房運転時において、外気温度が所定温度(例えば20℃)以下となったときには、室外機22A〜Cの室外熱交換器における凝縮温度(圧力)が低下して冷房能力が過大となるので、室外機22A〜Cの運転能力を低下させて室内の過冷却を防止する。
【0017】
従って、上記実施の形態によれば、次の効果▲1▼〜▲4▼を奏する。
【0018】
▲1▼外気温度を検出可能とする外気温センサ24が、複数の室外機22A〜Cに個別に設置されず、複数の室外機22A〜Cを制御する中継コントローラ23に設置されたことから、外気温センサ24の個数を減少でき、コストを低減できる。
【0019】
▲2▼中継コントローラ23が、外気温センサ24にて検出され読み取った外気温度を通信線26A、26B、26Cを介して室外機22A、22B、22Cへそれぞれ送信するので、中継コントローラ23及び室外機22A〜Cは、外気温度に対応した最適な制御を実施できる。
【0020】
▲3▼外気温度を検出可能とする外気温センサ24が、複数の室外機22A〜Cを制御する中継コントローラ23に設置されたことから、この中継コントローラ23が、外気温センサ24にて検出され読み取った外気温度を、通信線26A、26B、26Cを介して室外機22A、22B、22Cへそれぞれ送信できるので、任意の室外機(例えば室外機22A)が故障しても、故障していない他の室外機(室外機22B及び22C)は中継コントローラ23から外気温度を取り込むことができ、外気温度に基づく最適な制御を実施できる。
【0021】
▲4▼外気温センサ24が複数の室外機22A〜Cに個別に設置されず、中継コントローラ23に1個設置されたことから、中継コントローラ23は、従来のごとく、複数の外気温センサ24にて検出された外気温度のうち最も低い温度の外気温度を選択する必要がないので、外気温度に基づく最適な制御を簡易化できる。
【0022】
以上、一実施の形態に基づいて本発明を説明したが、本発明はこれに限定されるものではない。
【0023】
例えば、上記中継コントローラ23は、室外機22A〜Cのうち任意の一の室外機に内蔵され、この内蔵された中継コントローラ23に外気温センサ24が設置されてもよい。ただし、この場合には、外気温センサ24は室外に配設される必要がある。
【0024】
又、上記実施の形態では、室内機21A〜Dが複数のものを述べたが、室内機は1台であってもよい。
【0025】
更に、上記実施の形態では、室外機22A、22B、22Cが通信線26A、26B、26Cにより中継コントローラ23にそれぞれ接続されるものを述べたが、室外機22A、22B及び22Cが同一の通信線にて中継コントローラ23に接続されてもよい。
【0026】
【発明の効果】
以上のように、本発明に係る空気調和装置によれば、外気温度を検出可能とする外気温センサが、複数の室外機を制御する中継コントローラに設置されたことから、外気温度に対応した制御を低コストにて実現できる。
【図面の簡単な説明】
【図1】本発明に係る空気調和装置の一実施の形態における構成を示す系統図である。
【図2】従来の空気調和装置を示す系統図である。
【符号の説明】
20 空気調和装置
22A、22B、22C 室外機
23 中継コントローラ(室外機コントローラ)
24 外気温センサ
26A、26B、26C 通信線
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner in which a plurality of outdoor units are installed.
[0002]
[Prior art]
An air conditioner in which a plurality of outdoor units are installed is used in a place that requires an extremely large air conditioning capacity. In such an air conditioner 10, as shown in FIG. 2, an outdoor air temperature sensor 12 that detects the outdoor air temperature is provided in each of the plurality of outdoor units 11 so that optimal control with respect to the outdoor air temperature can be realized. It is installed separately.
[0003]
The relay controller 13 that controls each outdoor unit 11 selects the lowest temperature among the outside air temperatures detected by the plurality of outside air temperature sensors 12, and the relay controller 13 and the outdoor unit 11 select the lowest outside air that is selected. Control corresponding to temperature, for example, control of defrosting during heating operation is performed. In addition, the code | symbol 14 in FIG. 2 is an indoor unit.
[0004]
[Problems to be solved by the invention]
However, in the air conditioner 10 described above, since the outdoor air temperature sensors 12 are individually installed in the plurality of outdoor units 11, the number of the outdoor air temperature sensors 12 increases, and the cost cannot be reduced.
[0005]
An object of the present invention is to provide an air conditioner that can realize control corresponding to the outside air temperature at a low cost.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 includes an indoor unit and a plurality of outdoor units, and the indoor unit and the plurality of outdoor units are connected to a relay controller via a communication line, and the relay controller determines the number of operating outdoor units. In the air conditioner that determines and controls the operating capacity of each outdoor unit, the relay controller is installed outside the room, an outside air temperature sensor that can detect the outside air temperature is installed in the relay controller, and the relay controller The outside air temperature is read from the detection value of the temperature sensor, and the read outside temperature can be transmitted to each outdoor unit via a communication line .
[0007]
The invention described in claim 1 has the following action.
[0008]
The outside air temperature sensor that can detect the outside air temperature is not installed individually in multiple outdoor units, but is installed in a relay controller that controls multiple outdoor units. Can be reduced.
[0009]
And since a relay controller transmits the outside temperature detected by this outside temperature sensor to each outdoor unit via a communication line, the air conditioning apparatus can implement optimal control corresponding to outside temperature.
[0010]
The outside air temperature sensor that can detect the outside air temperature, since it is installed in the relay controller for controlling a plurality of outdoor units, the relay controller, the outside air temperature detected by the outside air temperature sensor, a communication line Therefore, even if any outdoor unit fails, the other outdoor units that do not fail can take in the outside temperature, and optimal control based on the outside temperature can be performed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is a system diagram showing a configuration in an embodiment of an air-conditioning apparatus according to the present invention.
[0013]
The air conditioner 20 shown in FIG. 1 includes a plurality of indoor units 21A, 21B, 21C and 21D, a plurality of outdoor units 22A, 22B and 22C, a relay controller 23 as one outdoor unit controller, One outside air temperature sensor 24 is included.
[0014]
The indoor units 21A to 21D are connected to the relay controller 23 via the same communication line 25. The outdoor unit 22A is connected to the relay controller 23 through the communication line 26A, the outdoor unit 22B is connected through the communication line 26B, and the outdoor unit 22C is connected to the relay controller 23 through the communication line 26C.
[0015]
This relay controller 23 determines the number of outdoor units 22A to 22C to be operated in correspondence with the number of indoor units 21A to 21D, and further controls the operating capacity of each of the outdoor units 22A to 22C. This relay controller 23 is installed outdoors in the present embodiment. The outside air temperature sensor 24 is installed in the relay controller 23 so that the outside air temperature can be detected. The relay controller 23 reads the outside air temperature from the detection value of the outside air temperature sensor 24, and communicates with the outdoor unit 22A through the communication line 26A, the outdoor unit 22B through the communication line 26B, and the outdoor unit 22C through the communication line 26C. The read outside air temperature is transmitted to each.
[0016]
The relay controller 23 and the operating outdoor units 22A to 22C perform optimum control corresponding to the outside air temperature. For example, during the heating operation of the air conditioner 20, the defrosting operation is appropriately performed when the outside air temperature becomes a predetermined temperature (for example, 5 ° C.) or lower. Further, during the cooling operation of the air conditioner 20, when the outside air temperature becomes equal to or lower than a predetermined temperature (for example, 20 ° C.), the condensation temperature (pressure) in the outdoor heat exchanger of the outdoor units 22A to 22C decreases, and the cooling capacity Therefore, the operating capacity of the outdoor units 22A to 22C is reduced to prevent overcooling in the room.
[0017]
Therefore, according to the above embodiment, the following effects (1) to (4) are obtained.
[0018]
(1) Since the outside air temperature sensor 24 that can detect the outside air temperature is not individually installed in the plurality of outdoor units 22A to 22C, but installed in the relay controller 23 that controls the plurality of outdoor units 22A to 22C. The number of outside air temperature sensors 24 can be reduced, and the cost can be reduced.
[0019]
(2) Since the relay controller 23 transmits the outside air temperature detected and read by the outside air temperature sensor 24 to the outdoor units 22A, 22B, and 22C via the communication lines 26A, 26B, and 26C, respectively, the relay controller 23 and the outdoor unit 22A-C can implement optimal control corresponding to the outside air temperature.
[0020]
(3) Since the outside air temperature sensor 24 that can detect the outside air temperature is installed in the relay controller 23 that controls the plurality of outdoor units 22A to 22C, the outside air temperature sensor 24 detects the relay air controller 23. The read outside air temperature can be transmitted to the outdoor units 22A, 22B, and 22C via the communication lines 26A, 26B, and 26C, respectively. Therefore, even if any outdoor unit (for example, the outdoor unit 22A) fails, there is no failure. The outdoor units (outdoor units 22B and 22C) can take in the outside temperature from the relay controller 23, and can perform optimum control based on the outside temperature.
[0021]
(4) Since the outside air temperature sensor 24 is not individually installed in the plurality of outdoor units 22A to 22C but is installed in the relay controller 23, the relay controller 23 is connected to the plurality of outside air temperature sensors 24 as in the past. Therefore, it is not necessary to select the lowest outdoor temperature among the detected outdoor temperatures, so that the optimum control based on the outdoor temperature can be simplified.
[0022]
As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this.
[0023]
For example, the relay controller 23 may be built in any one of the outdoor units 22A to 22C, and the outside air temperature sensor 24 may be installed in the built-in relay controller 23. However, in this case, the outside air temperature sensor 24 needs to be disposed outside the room.
[0024]
In the above embodiment, a plurality of indoor units 21A to 21D are described. However, one indoor unit may be used.
[0025]
Further, in the above embodiment, the outdoor units 22A, 22B, and 22C are connected to the relay controller 23 by the communication lines 26A, 26B, and 26C, respectively, but the outdoor units 22A, 22B, and 22C are the same communication line. May be connected to the relay controller 23.
[0026]
【The invention's effect】
As described above, according to the air conditioner according to the present invention, the outside air temperature sensor that can detect the outside air temperature is installed in the relay controller that controls the plurality of outdoor units. Can be realized at low cost.
[Brief description of the drawings]
FIG. 1 is a system diagram showing the configuration of an air conditioner according to an embodiment of the present invention.
FIG. 2 is a system diagram showing a conventional air conditioner.
[Explanation of symbols]
20 air conditioner 22A, 22B, 22C outdoor unit 23 relay controller (outdoor unit controller)
24 Outside air temperature sensor 26A, 26B, 26C Communication line

Claims (1)

室内機及び複数の室外機を有し、これら室内機及び複数の室外機が通信線を介して中継コントローラに接続され、この中継コントローラが、室外機の運転台数を決定し、各室外機の運転能力を制御する空気調和装置において、
前記中継コントローラを室外に設置し、この中継コントローラに外気温度を検出可能とする外気温センサを設置し、前記中継コントローラが前記外気温センサの検出値から外気温度を読み取り、通信線を介して各室外機へ読み取った外気温度を送信可能にしたことを特徴とする空気調和装置。
It has an indoor unit and a plurality of outdoor units, and these indoor units and a plurality of outdoor units are connected to a relay controller via a communication line, and this relay controller determines the number of outdoor units to be operated and operates each outdoor unit. In an air conditioner that controls capacity ,
The relay controller is installed outdoors, and an outside air temperature sensor capable of detecting the outside air temperature is installed in the relay controller, and the relay controller reads the outside air temperature from the detection value of the outside air temperature sensor, An air conditioner characterized in that an outside temperature read to an outdoor unit can be transmitted .
JP33102198A 1998-11-20 1998-11-20 Air conditioner Expired - Fee Related JP3851005B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33102198A JP3851005B2 (en) 1998-11-20 1998-11-20 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33102198A JP3851005B2 (en) 1998-11-20 1998-11-20 Air conditioner

Publications (2)

Publication Number Publication Date
JP2000161753A JP2000161753A (en) 2000-06-16
JP3851005B2 true JP3851005B2 (en) 2006-11-29

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190040781A (en) * 2017-10-11 2019-04-19 주식회사 씨앤엘 High temperature air cooling system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003130420A (en) 2001-10-26 2003-05-08 Daikin Ind Ltd Control system of air conditioner, and air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190040781A (en) * 2017-10-11 2019-04-19 주식회사 씨앤엘 High temperature air cooling system
KR102064453B1 (en) 2017-10-11 2020-02-11 주식회사 씨앤엘 High temperature air cooling system

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