JPH03181736A - Air-conditioner - Google Patents
Air-conditionerInfo
- Publication number
- JPH03181736A JPH03181736A JP1322155A JP32215589A JPH03181736A JP H03181736 A JPH03181736 A JP H03181736A JP 1322155 A JP1322155 A JP 1322155A JP 32215589 A JP32215589 A JP 32215589A JP H03181736 A JPH03181736 A JP H03181736A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- compressor
- air
- indoor
- damper
- 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
- 239000003507 refrigerant Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は空気調和機の風量制御に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to air volume control for an air conditioner.
従来の技術
従来の空気調和機は第3図に示すように、圧縮機101
.室外側熱交換器102.室内側熱交換器103釦よび
キャピラリーチューブ104からなる冷媒回路の凝縮圧
力を感知する圧力センサー105と、圧縮機101の回
転数を可変とするインバータ106と室外側熱交換器1
02に送風する室外側77ン107と室内に送風する室
内側ファン10Bと室内側ファン108の回転数を可変
とするインバータ109及びVAVlloを持つ給気ダ
クト系111から構成されている。2. Description of the Related Art A conventional air conditioner has a compressor 101 as shown in FIG.
.. Outdoor heat exchanger 102. Indoor heat exchanger 103 A pressure sensor 105 that senses the condensation pressure of a refrigerant circuit consisting of a button and a capillary tube 104, an inverter 106 that makes the rotation speed of the compressor 101 variable, and an outdoor heat exchanger 1
The air supply duct system 111 includes an indoor fan 10B that blows air into the room, an inverter 109 that makes the rotation speed of the indoor fan 108 variable, and an air supply duct system 111 that has a VAVllo.
上記構成に釦いて室内側ファン108の送風量ばVAV
lloからの信号によう決定されるため、室内側熱交換
器103を通過する風量の変化による凝縮圧力の変化を
圧力センサー106で感知し、凝縮圧力が適正範囲内に
入るように、圧縮機101の回転数を可変とするインバ
ータ106の回転数を変化させていた。If you press the button on the above configuration and the airflow amount of the indoor fan 108 is VAV
The pressure sensor 106 detects the change in condensing pressure due to the change in the amount of air passing through the indoor heat exchanger 103, and the compressor 101 The number of revolutions of an inverter 106 that makes the number of revolutions of the inverter variable is changed.
発明が解決しようとする課題
しかしながら、このような従来の構成では、VAVlo
lからの信号によシ室内側フ〒ン108からの風量が6
0多程度以下になると、冷房運転の場合は凝縮圧力の低
下を招き、暖房運転の場合は凝縮圧力の上昇を招くため
凝縮圧力を適正範囲内に入れるために、圧縮機101の
回転数を変化させるインバータ106よシなるVRVシ
ステム(冷媒流量可変システム)を構成する必要がある
ため複雑な制御を必要とし冷媒回路も複雑で部品点数も
多くなるためコストの上昇2機器の信頼性低下という課
題を有していた。Problems to be Solved by the Invention However, in such a conventional configuration, VAVlo
According to the signal from l, the air volume from the indoor fan 108 is 6.
If the temperature falls below 0, the condensing pressure will decrease in cooling operation, and the condensing pressure will increase in heating operation. Therefore, in order to bring the condensing pressure within the appropriate range, the rotation speed of the compressor 101 is changed. Since it is necessary to configure a VRV system (variable refrigerant flow rate system) such as the inverter 106, which requires complicated control, the refrigerant circuit is also complicated and the number of parts increases, which increases costs.2. had.
本発明は上記課題に留意しVAVに対応できる安価で且
つ信頼性の高い空気調和機の提供を目的とするものであ
る。The present invention has been made with the above-mentioned problems in mind and aims to provide an inexpensive and highly reliable air conditioner that is compatible with VAV.
課題を解決するための手段
この目的を達成するため本発明は、複数台の圧縮機、室
外側熱交換器、室内側熱交換器およびキャピラリーチュ
ーブからなる冷媒回路と、室外側熱交換器に送風し、熱
交換を促す室外側ファンと、VAVユニットを持つダク
ト系に接続された室内側熱交換器に送風する室内側ファ
ンと、この室内側ファンの回転数を可変とするインバー
タと、室内側熱交換器の通過風量を制限するダンパー及
びVAVからの信号によシ室内側ファンの回転数。Means for Solving the Problems To achieve this object, the present invention provides a refrigerant circuit consisting of a plurality of compressors, an outdoor heat exchanger, an indoor heat exchanger, and a capillary tube, and a cooling system that blows air to the outdoor heat exchanger. an outdoor fan that promotes heat exchange; an indoor fan that blows air to an indoor heat exchanger connected to a duct system with a VAV unit; an inverter that makes the rotation speed of this indoor fan variable; The rotation speed of the indoor fan is determined by the damper that limits the amount of air passing through the heat exchanger and the signal from the VAV.
圧縮機の運転台数、ダンパーの開閉を決定する制御手段
とからなる空気調和機の構成としたものである。The air conditioner consists of a control means that determines the number of operating compressors and whether to open or close dampers.
作 用
この構成によpVAVからの信号を受けて室内ファンの
回転数及び圧縮機の運転台数、室内側熱交換器のダンパ
ーを開閉させることによって、凝縮圧力が適正範囲内に
はいることとなる。Function: With this configuration, the condensing pressure will be within the appropriate range by receiving the signal from the pVAV and opening and closing the indoor fan rotation speed, the number of operating compressors, and the damper of the indoor heat exchanger. .
実施例
以下本発明の一実施例について、第1図釦よび第2図に
基づき説明する。EXAMPLE An example of the present invention will be described below with reference to the button in FIG. 1 and FIG. 2.
第1図に示すように、冷媒圧縮用の1号圧縮機1.2号
圧縮機2と、1号圧縮機1,2号圧縮機2に接続された
室外側熱交換器3と、室外側熱交換器3に接続された1
号圧縮機用キャピラリチューブ4と、2号圧縮機用キャ
ピラリチューフロに接続された室内側熱交換器6よ構成
る冷媒回路を構成し、室内側熱交換器6は第2図のよう
に、1号圧縮機1用回路7と2号圧縮機2用回路8が上
下2回路にわかれておジ2号圧縮機2用回路8の風下側
にはダンパー9が取うつけられている。As shown in Fig. 1, a No. 1 compressor 1 and a No. 2 compressor 2 for compressing refrigerant, an outdoor heat exchanger 3 connected to the No. 1 compressor 1 and the No. 2 compressor 2, and 1 connected to heat exchanger 3
A refrigerant circuit is constituted by the capillary tube 4 for the No. 2 compressor and the indoor heat exchanger 6 connected to the capillary tube for the No. 2 compressor, and the indoor heat exchanger 6 is as shown in FIG. A circuit 7 for the No. 1 compressor 1 and a circuit 8 for the No. 2 compressor 2 are divided into two upper and lower circuits, and a damper 9 is installed on the leeward side of the circuit 8 for the No. 2 compressor 2.
方、室外側熱交換器3に送風する室外側ファン10およ
び、室内側熱交換器6に送風する室内側ファン11がそ
れぞれ取9つけられている。筐た室内側ファン11の吐
出側にはVAVl2を持つ給気用ダクト13が接続され
てhB、とのVAVl2からの信号によシ制御手段14
が室内側ファン11の適正風量、1号圧縮機1.2号圧
縮機2のON。On the other hand, an outdoor fan 10 that blows air to the outdoor heat exchanger 3 and an indoor fan 11 that blows air to the indoor heat exchanger 6 are each installed. An air supply duct 13 having a VAVl2 is connected to the discharge side of the indoor fan 11, and a control means 14 is controlled by a signal from the VAVl2, hB.
is the appropriate air volume of the indoor fan 11, No. 1 compressor 1, and No. 2 compressor 2 are ON.
0FFhよびダンパー9の開閉を判断し、室内ファン1
1に接続されたインバータ15督よび1号圧縮機1,2
号圧縮機2.ダンパー9へ指令を出す。0FFh and whether the damper 9 is open or closed, the indoor fan 1
Inverter 15 connected to No. 1 and No. 1 compressor 1, 2
No. compressor 2. Issue a command to damper 9.
以上のように構成された空気調和機について、以下その
動きについて説明する。VAVl 2からの信号が空気
調和機にはいると制御手段14が室内側71ン11の適
正風量を判断し、その回転数をインバータ16に指令を
出すと同時に空気調和機の最大風量に対し、その適正風
量が60%以下ならば、圧縮機1台で充分な能力を出し
うるものと判断し1号圧縮機1のみにON指令を出し2
号圧縮機2は停止させダンパー9を閉とさせる。ダンパ
ー9を閉としたことによシ室内側71ン11による風は
室内側熱交換器6では1号圧縮機1月にのみ送られるこ
ととなる。以上のように上記構成によれば、室内風量を
変化させても複雑なVRVシステムを使用する事なく凝
縮圧力が適正範囲内にはいることとなる。The operation of the air conditioner configured as described above will be explained below. When the signal from VAVl 2 enters the air conditioner, the control means 14 determines the appropriate air volume for the indoor side 71 and 11, and at the same time issues a command to the inverter 16 to determine the rotation speed, and at the same time, If the appropriate air volume is 60% or less, it is determined that one compressor can provide sufficient capacity, and an ON command is issued to only No. 1 compressor 1.
The No. 1 compressor 2 is stopped and the damper 9 is closed. By closing the damper 9, the air from the indoor side 71 and 11 is sent to the indoor heat exchanger 6 only to the No. 1 compressor. As described above, according to the above configuration, even if the indoor air volume is changed, the condensing pressure can be kept within the appropriate range without using a complicated VRV system.
発明の効果
以上の実施例の説明によシ明らかなように、本発明によ
れば室内側熱交換器の風下側の半分にダンパーを取シつ
けその開閉を室内側ファンの回転数、圧縮機の運転台数
に連動させることによシ複雑なVRVシステムを使用す
る事なく凝縮圧力を適正範囲内に入れることができるこ
とになシ、安価で信頼性の高いVAV対応型の空気調和
機を提供できるという効果を有する。Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, a damper is installed in the leeward half of the indoor heat exchanger, and the opening and closing of the damper is controlled by the rotational speed of the indoor fan and the compressor. By linking to the number of units in operation, the condensing pressure can be kept within the appropriate range without using a complicated VRV system, and it is possible to provide an inexpensive and highly reliable VAV compatible air conditioner. It has this effect.
第1図は本発明の一実施例の空気調和機の冷媒回路の構
成国、第2図は同室内側熱交換器の冷媒回路図、第3図
は従来の空気調和機の冷媒回路傭成図である。
1.2・・・・・圧縮機、3・・・・・・室外側熱交換
器、4゜5・・・・・キャピラリチューブ、6・・・・
・室内側熱交換器、9・・・・・・ダンパー、10・・
・・・・室外側ファン、11室内側フアン、12・・・
・・VAV、13・・・・・・ダクト系、14・・・・
・・制御手段、15・・・・・・インバータ。Fig. 1 is a configuration diagram of the refrigerant circuit of an air conditioner according to an embodiment of the present invention, Fig. 2 is a refrigerant circuit diagram of the indoor heat exchanger, and Fig. 3 is a refrigerant circuit configuration diagram of a conventional air conditioner. It is. 1.2...Compressor, 3...Outdoor heat exchanger, 4゜5...Capillary tube, 6...
・Indoor heat exchanger, 9... Damper, 10...
...Outdoor fan, 11 Indoor fan, 12...
...VAV, 13...Duct system, 14...
...Control means, 15...Inverter.
Claims (1)
びキャピラリーチューブからなる冷媒回路と、室外側熱
交換器に送風し、熱交換を促す室外側ファンと、VAV
ユニットを持つダクト系に接続された室内側熱交換器に
送風する室内側ファンと、この室内側ファンの回転数を
可変とするインバータと、前記室内側熱交換器の通過風
量を制限するダンパー及びVAVからの信号により前記
室内側ファンの回転数、圧縮機の運転台数、ダンパーの
開閉を決定する制御手段とからなる空気調和機。A refrigerant circuit consisting of multiple compressors, an outdoor heat exchanger, an indoor heat exchanger, and a capillary tube, an outdoor fan that blows air to the outdoor heat exchanger to promote heat exchange, and a VAV.
An indoor fan that blows air to an indoor heat exchanger connected to a duct system having a unit, an inverter that makes the rotation speed of the indoor fan variable, a damper that limits the amount of air passing through the indoor heat exchanger, and An air conditioner comprising a control means that determines the rotational speed of the indoor fan, the number of operating compressors, and opening/closing of a damper based on a signal from a VAV.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1322155A JPH03181736A (en) | 1989-12-12 | 1989-12-12 | Air-conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1322155A JPH03181736A (en) | 1989-12-12 | 1989-12-12 | Air-conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03181736A true JPH03181736A (en) | 1991-08-07 |
Family
ID=18140551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1322155A Pending JPH03181736A (en) | 1989-12-12 | 1989-12-12 | Air-conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03181736A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010078238A (en) * | 2008-09-26 | 2010-04-08 | Yamatake Corp | Air conditioning control system |
CN102080896A (en) * | 2011-01-24 | 2011-06-01 | 李静 | Electric vehicle air conditioner using vacuum reducer valve (VRV) system |
WO2024078081A1 (en) * | 2022-10-14 | 2024-04-18 | 珠海格力电器股份有限公司 | Compressor control method and apparatus, and unit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5719541A (en) * | 1980-07-08 | 1982-02-01 | Taisei Corp | Air conditioner capable of adjusting air flow amount in accordance with control of number of compressor |
-
1989
- 1989-12-12 JP JP1322155A patent/JPH03181736A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5719541A (en) * | 1980-07-08 | 1982-02-01 | Taisei Corp | Air conditioner capable of adjusting air flow amount in accordance with control of number of compressor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010078238A (en) * | 2008-09-26 | 2010-04-08 | Yamatake Corp | Air conditioning control system |
CN102080896A (en) * | 2011-01-24 | 2011-06-01 | 李静 | Electric vehicle air conditioner using vacuum reducer valve (VRV) system |
WO2024078081A1 (en) * | 2022-10-14 | 2024-04-18 | 珠海格力电器股份有限公司 | Compressor control method and apparatus, and unit |
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