JP2000146261A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JP2000146261A JP2000146261A JP11342138A JP34213899A JP2000146261A JP 2000146261 A JP2000146261 A JP 2000146261A JP 11342138 A JP11342138 A JP 11342138A JP 34213899 A JP34213899 A JP 34213899A JP 2000146261 A JP2000146261 A JP 2000146261A
- Authority
- JP
- Japan
- Prior art keywords
- electronic expansion
- expansion valve
- outdoor unit
- air conditioner
- indoor 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.)
- Granted
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、１台の室外ユニッ
トと複数台の室内ユニットとが冷凍サイクルを構成する
ように接続された空気調和機に関し、特には空気調和機
における室内ユニット側の膨張弁の開度制御を行なう空
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 in which one outdoor unit and a plurality of indoor units are connected so as to form a refrigeration cycle, and more particularly to expansion of an air conditioner on the indoor unit side. The present invention relates to an air conditioner that performs valve opening control.
【０００２】[0002]
【従来の技術】従来、室外ユニットは圧縮機、室外熱交
換器すなわち熱源側熱交換器を備え、また室内ユニット
は室内熱交換器すなわち利用側熱交換器を備え、これら
の室外ユニット及び室内ユニットは冷凍サイクルを形成
するように接続されて、空気調和機を構成している。そ
して冷媒回路により上記のような１台の室外ユニットに
対して複数台の室内ユニットが接続されてマルチエアコ
ンが構成される。例えば特公昭５６−４９８５６号公
報、特開昭６０−１３３２７４号公報等にはマルチエア
コンすなわち多室形冷暖房装置が記載されている。2. Description of the Related Art Conventionally, an outdoor unit has a compressor and an outdoor heat exchanger, that is, a heat source side heat exchanger, and an indoor unit has an indoor heat exchanger, that is, a use side heat exchanger. Are connected so as to form a refrigeration cycle, and constitute an air conditioner. A plurality of indoor units are connected to one outdoor unit as described above by a refrigerant circuit to form a multi air conditioner. For example, Japanese Patent Publication No. Sho 56-49856 and Japanese Patent Laid-Open Publication No. Sho 60-133274 disclose a multi air conditioner, that is, a multi-room air conditioner.
【０００３】従来のマルチエアコンにおいては、室内ユ
ニットの膨張機構（キャピラリ）に設けた電磁弁が室温
と設定温度との偏差によりオン・オフ制御されており、
膨張弁の開度制御は行なっていない。In a conventional multi air conditioner, a solenoid valve provided in an expansion mechanism (capillary) of an indoor unit is controlled on / off by a deviation between room temperature and a set temperature.
The opening control of the expansion valve is not performed.
【０００４】[0004]
【発明が解決しようとする課題】上記従来のマルチエア
コン即ち空気調和機においては冷凍サイクルの変動に対
する考慮がなされていないので、冷凍サイクルが安定せ
ず、圧縮機の信頼性が保てず、また安定した空気調和が
できなかった。また室内ユニット側で制御するための標
準化ができないという問題がある。すなわち前記したよ
うな従来の装置の欠点を解消すべく、電磁弁のオン・オ
フ制御でなくて膨張弁の開度制御に改良してその所要で
開度値を演算するようにしても、室内ユニットの容量が
異なるごとにソフトウエアが異なり、標準化ができず、
また異なった冷凍サイクルには適用できない。In the conventional multi air conditioner, that is, in the air conditioner, no consideration is given to the fluctuation of the refrigeration cycle, so that the refrigeration cycle is not stabilized, and the reliability of the compressor cannot be maintained. Stable air conditioning could not be achieved. Further, there is a problem that standardization for control on the indoor unit side cannot be performed. That is, in order to solve the above-mentioned drawbacks of the conventional device, even if the opening degree control of the expansion valve is performed instead of the on / off control of the solenoid valve and the opening value is calculated as required, The software differs for each unit capacity, and standardization is not possible.
Also, it cannot be applied to different refrigeration cycles.
【０００５】したがって、本発明は、安定した冷凍サイ
クルが得られ、信頼性の高い圧縮機の運転ができ、さら
に、異なる室内ユニットに対しても標準化された膨張弁
駆動装置の適用を可能とした空気調和機を提供すること
を目的としている。Accordingly, the present invention provides a stable refrigeration cycle, a reliable operation of the compressor, and the application of a standardized expansion valve drive to different indoor units. It aims to provide an air conditioner.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に係る発明による空気調和機は、圧縮機及
び熱源側熱交換器を有する１台の室外ユニットと、利用
側熱交換器及び電子膨張弁を有する複数台の室内ユニッ
トとを有する冷凍サイクルを備えた空気調和機におい
て、前記室外ユニットは、前記室内ユニットそれぞれの
前記電子膨張弁の目標開度を算出する電子膨張弁開度演
算部と、算出された目標開度を前記室内ユニットに送信
する伝送手段とを備え、前記室内ユニットは、データが
設定可能とされた補正スイッチを備え、前記室外ユニッ
トから送信された前記目標開度の値と前記補正スイッチ
で設定されたデータとに基づいて前記電子膨張弁を制御
するように構成されていることを特徴とするものであ
る。In order to achieve the above object, an air conditioner according to the first aspect of the present invention comprises: a single outdoor unit having a compressor and a heat source side heat exchanger; An air conditioner provided with a refrigeration cycle having a unit and a plurality of indoor units having an electronic expansion valve, wherein the outdoor unit is configured to calculate a target opening of the electronic expansion valve of each of the indoor units. A degree calculation unit, and transmission means for transmitting the calculated target opening degree to the indoor unit, the indoor unit includes a correction switch capable of setting data, and the target transmitted from the outdoor unit. The electronic expansion valve is configured to be controlled based on an opening value and data set by the correction switch.
【０００７】また、請求項２に係る発明による空気調和
機は、請求項１に記載のものにおいて、前記圧縮機の吐
出管に圧力センサ及び温度センサを設け、前記室外ユニ
ットは、前記圧力センサ及び温度センサから入力される
値に基づいて電子膨張弁開度を算出する電子膨張弁開度
演算部を有することを特徴とするものである。According to a second aspect of the present invention, in the air conditioner according to the first aspect, a pressure sensor and a temperature sensor are provided in a discharge pipe of the compressor, and the outdoor unit includes the pressure sensor and the pressure sensor. An electronic expansion valve opening calculating section that calculates an electronic expansion valve opening based on a value input from a temperature sensor is provided.
【０００８】[0008]
【作用】室外ユニットにおいて室内ユニットの電子膨張
弁の目標開度を算出し、該算出された目標開度に基づき
室内ユニットの電子膨張弁の開度を制御する。具体的に
は、室外ユニット側の電子膨張弁開度演算部で各室内ユ
ニット能力コードを勘案して、各室内ユニットの電子膨
張弁の目標開度値が演算される。この演算は、例えば室
外ユニットの圧縮機からの吐出ガス温度と凝縮温度とに
基づいて行われる。そして演算された上記各目標開度値
は伝送回路を介して各室内ユニットに送信される。各室
内ユニット側では、受信した電子膨張弁の目標開度値と
現在の開度値とが比較され、その偏差分だけ電子膨張弁
は電子膨張弁駆動回路によって絞る方へ或は開く方へ制
御される。The outdoor unit calculates the target opening of the electronic expansion valve of the indoor unit, and controls the opening of the electronic expansion valve of the indoor unit based on the calculated target opening. Specifically, a target opening value of the electronic expansion valve of each indoor unit is calculated in consideration of each indoor unit capability code in the electronic expansion valve opening calculation unit on the outdoor unit side. This calculation is performed, for example, based on the temperature of the gas discharged from the compressor of the outdoor unit and the condensation temperature. The calculated target opening values are transmitted to the indoor units via the transmission circuit. At each indoor unit, the received target opening value of the electronic expansion valve and the current opening value are compared, and the electronic expansion valve is controlled by the electronic expansion valve drive circuit to be throttled or opened by the deviation. Is done.
【０００９】[0009]
【発明の実施の形態】本発明の実施形態としては、室外
ユニット側にも電子膨張弁を設けた空気調和機の例で説
明する。本実施形態では、図１の如く、空気調和機の冷
凍サイクルは１台の室外ユニット１と、複数台例えば２
台の室内ユニット２Ａ，２Ｂとから成っている。図１は
冷房時の状態を示している。室外ユニット１は、圧縮機
２０、熱源側熱交換器２１、電子膨張弁７、アキュムレ
ータ２２、四方切換弁３から成っている。圧縮機２０の
吐出管には高圧ガス（吐出ガス）圧力値を検知する圧力
センサ１０と、高圧ガス温度を検知する温度センサ９が
設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, an air conditioner in which an electronic expansion valve is provided also on the outdoor unit side will be described. In the present embodiment, as shown in FIG. 1, the refrigeration cycle of the air conditioner includes one outdoor unit 1 and a plurality of units, for example, 2 units.
And two indoor units 2A and 2B. FIG. 1 shows a state during cooling. The outdoor unit 1 includes a compressor 20, a heat source side heat exchanger 21, an electronic expansion valve 7, an accumulator 22, and a four-way switching valve 3. The discharge pipe of the compressor 20 is provided with a pressure sensor 10 for detecting a high-pressure gas (discharge gas) pressure value and a temperature sensor 9 for detecting a high-pressure gas temperature.
【００１０】室内ユニット２Ａ，２Ｂは、利用側熱交換
器２３Ａ，２３Ｂを備えると共に、電子膨張弁１４Ａ，
１４Ｂをそれぞれ有する。そして、これらユニット１，
２Ａ，２Ｂは冷媒循環路で接続されて冷凍サイクルを構
成している。The indoor units 2A and 2B include the use side heat exchangers 23A and 23B, and the electronic expansion valves 14A and 14A.
14B. And these units 1,
2A and 2B are connected by a refrigerant circuit to form a refrigeration cycle.
【００１１】上記の冷凍サイクルを制御するための回路
が、図２に示されている。室外ユニット１側には、各室
内ユニット２Ａ，２Ｂとの間でデータを送受信するため
の伝送回路４、センサ９，１０からの信号を用いて算出
された電子膨張弁目標開度を記憶するメモリ６、電子膨
張弁７を駆動する電子膨張弁駆動回路８、及び各室内ユ
ニットの電子膨張弁１４Ａ，１４Ｂの目標開度値を記憶
するメモリ１６Ａ，１６Ｂが設けられている。また室内
ユニット側には、室外ユニットとの間でデータを送受信
するための伝送回路１２Ａ，１２Ｂ、室内ユニット能力
コード設定器１５Ａ，１５Ｂ、電子膨張弁１４Ａ，１４
Ｂの現在の開度を記憶するメモリ１３Ａ，１３Ｂ、及び
電子膨張弁１４Ａ，１４Ｂを駆動するための電子膨張弁
駆動回路１１Ａ，１１Ｂが設けられている。A circuit for controlling the above refrigeration cycle is shown in FIG. On the outdoor unit 1 side, a transmission circuit 4 for transmitting and receiving data to and from each of the indoor units 2A and 2B, and a memory for storing the electronic expansion valve target opening calculated using signals from the sensors 9 and 10. 6, an electronic expansion valve driving circuit 8 for driving the electronic expansion valve 7, and memories 16A and 16B for storing target opening values of the electronic expansion valves 14A and 14B of each indoor unit. On the indoor unit side, transmission circuits 12A and 12B for transmitting and receiving data to and from the outdoor unit, indoor unit performance code setting units 15A and 15B, and electronic expansion valves 14A and 14B.
There are provided memories 13A and 13B for storing the current opening degree of B, and electronic expansion valve driving circuits 11A and 11B for driving the electronic expansion valves 14A and 14B.
【００１２】次に、上記空気調和機の制御について説明
する。Next, control of the air conditioner will be described.
【００１３】電源を投入すると、室外ユニット１の電子
膨張弁７及び室内ユニット２Ａ，２Ｂ側の電子膨張弁１
４Ａ，１４Ｂは、それぞれの電子膨張弁駆動回路８，１
１Ａ，１１Ｂによりイニシャライズされて初期開度に設
定される。また室内ユニット２Ａ，２Ｂ側における室内
ユニット能力コード設定器１５Ａ，１５Ｂから夫々の室
内ユニットの能力コードを伝送回路１２Ａ，１２Ｂを介
して室外ユニット１の伝送回路４へ送信する。When the power is turned on, the electronic expansion valve 7 of the outdoor unit 1 and the electronic expansion valve 1 of the indoor units 2A and 2B are turned on.
4A and 14B are electronic expansion valve drive circuits 8, 1 respectively.
Initialized by 1A and 11B, the initial opening is set. Also, the indoor unit performance code setting units 15A and 15B on the indoor units 2A and 2B side transmit the performance codes of the respective indoor units to the transmission circuit 4 of the outdoor unit 1 via the transmission circuits 12A and 12B.
【００１４】冷凍サイクルが運転を開始し、略定常運転
に入ってから、室外ユニットにおいては、圧力センサ１
０から入力される高圧ガス圧力値より凝縮温度を算出
し、温度センサ９から入力される高圧ガスの温度と上記
凝縮温度とに基づいて電子膨張弁目標開度を算出し、こ
れをメモリ６に書き込む。この電子膨張弁目標開度は冷
凍サイクル全体としての最適冷媒流量に対応する全体的
電子膨張弁開度を意味する。[0014] After the refrigeration cycle starts operating and enters a substantially steady operation, in the outdoor unit, the pressure sensor 1
The condensing temperature is calculated from the high-pressure gas pressure value input from 0, and the electronic expansion valve target opening is calculated based on the high-pressure gas temperature input from the temperature sensor 9 and the condensing temperature. Write. This electronic expansion valve target opening means the overall electronic expansion valve opening corresponding to the optimum refrigerant flow rate of the entire refrigeration cycle.
【００１５】冷房運転時には、室外ユニット側では、電
子膨張弁７は適当な一定開度（実際上は全開）にしてお
く様に電子膨張弁駆動回路８を働かせ、他方、メモリ６
に記憶されている上記算出された電子膨張弁目標開度値
を、室内ユニット２Ａ，２Ｂから送信された室内ユニッ
ト能力コードの比で分配し、その分配れさた開度値は、
電子膨張弁１４Ａ，１４Ｂの目標開度値データとしてそ
れぞれのメモリ１６Ａ，１６Ｂに記憶する。室外ユニッ
トの伝送回路４からは、室内ユニット２Ａ，２Ｂの伝送
回路１２Ａ，１２Ｂへ電子膨張弁１４Ａ，１４Ｂの上記
目標開度値がメモリ１６Ａ，１６Ｂから送信される。各
室内ユニット側においては、受信した上記夫々の目標開
度値とメモリ１３Ａ，１３Ｂ上の現在の開度データとが
比較され、その差分だけ、例えば該差分がプラスであれ
ば開方向へ、マイナスであれば閉方向へ、電子膨張弁１
４Ａ，１４Ｂを、駆動回路１１Ａ，１１Ｂによってそれ
ぞれ駆動する。そしてメモリ１３Ａ，１３Ｂには、室外
ユニットから新らしく受信した上記夫々の目標開度値が
記憶される。During the cooling operation, on the outdoor unit side, the electronic expansion valve drive circuit 8 is operated to keep the electronic expansion valve 7 at an appropriate constant opening (actually, fully open).
Is distributed according to the ratio of the indoor unit capacity codes transmitted from the indoor units 2A and 2B, and the distributed opening value is
The data is stored in the memories 16A and 16B as target opening value data of the electronic expansion valves 14A and 14B. The target opening values of the electronic expansion valves 14A and 14B are transmitted from the memories 16A and 16B to the transmission circuits 12A and 12B of the indoor units 2A and 2B from the transmission circuit 4 of the outdoor unit. In each indoor unit, the received respective target opening degree values are compared with the current opening degree data on the memories 13A and 13B, and only the difference thereof, for example, if the difference is plus, the opening direction is minus. Then, in the closing direction, the electronic expansion valve 1
4A and 14B are driven by drive circuits 11A and 11B, respectively. The memories 13A and 13B store the respective target opening values newly received from the outdoor unit.
【００１６】暖房運転時には、図１に示されている状態
から四方切換弁３を切換えて冷媒の流れ方向を逆転させ
る。暖房運転の場合には、電子膨張弁７は、メモリ６に
記憶されている算出された電子膨張弁目標開度値と現在
の該膨張弁７の開度との差分だけ電子膨張弁駆動回路８
により駆動される。他方、室内ユニットの電子膨張弁開
度用のメモリ１６Ａ，１６Ｂには夫々一定の目標開度値
（実際上は全開）を記憶させる。このメモリ１６Ａ，１
６Ｂ上のデータは冷房運転時と同様に、伝送回路４によ
り室内ユニット側に送信されて、電子膨張弁１４Ａ，１
４Ｂは夫々上記一定の目標開度をとる様に駆動回路１１
Ａ，１１Ｂにより駆動される。During the heating operation, the four-way switching valve 3 is switched from the state shown in FIG. 1 to reverse the flow direction of the refrigerant. In the case of the heating operation, the electronic expansion valve 7 operates the electronic expansion valve driving circuit 8 by the difference between the calculated electronic expansion valve target opening value stored in the memory 6 and the current opening degree of the expansion valve 7.
Driven by On the other hand, a fixed target opening value (actually, fully open) is stored in the memories 16A, 16B for the electronic expansion valve opening of the indoor unit. This memory 16A, 1
The data on 6B is transmitted to the indoor unit side by the transmission circuit 4 as in the cooling operation, and the electronic expansion valves 14A,
4B are driving circuits 11 so as to take the above-mentioned constant target opening.
A, 11B.
【００１７】なお、図示はしないが、室外ユニット内に
は冷房運転および暖房運転の各場合においてメモリ６に
記憶させる前記の電子膨張弁目標開度およびメモリ１６
Ａ，１６Ｂに記憶させる各室内ユニット電子膨張弁１４
Ａ，１４Ｂの前記各目標開度を算出・決定する電子膨張
弁開度演算部が設けてある。Although not shown, the electronic expansion valve target opening and the memory 16 are stored in the memory 6 in each of the cooling operation and the heating operation in the outdoor unit.
A, 16B each indoor unit electronic expansion valve 14 to be stored in
An electronic expansion valve opening calculating section for calculating and determining each of the target opening amounts of A and 14B is provided.
【００１８】本実施形態のように、電子膨張弁を、室外
ユニットにも室内ユニットにも設けると、冷暖房に応じ
て使い分けすることができ、冷凍サイクルはより安定す
る効果がある。When the electronic expansion valve is provided in both the outdoor unit and the indoor unit as in the present embodiment, the electronic expansion valve can be selectively used according to the cooling and heating, and the refrigeration cycle has a more stable effect.
【００１９】本実施形態では、室外ユニットにより演算
された開度により室内ユニット側の電子膨張弁の開度を
制御することができるので、室内ユニットの容量の相違
および室内ユニットの接続台数等による冷凍サイクルの
変化に対応して室内ユニットの電子膨張弁をきめ細かく
制御することができ、冷凍サイクルの安定を速め、圧縮
機の信頼性を保持することができる。また室外ユニット
側で室内ユニットの電子膨張弁の目標開度値を決定する
ので、空気調和機の冷凍サイクルが相違しても、室外ユ
ニット側において目標開度値を決定する手段が改変して
冷凍サイクルの相違に適応すればよく、室内ユニット側
の制御手段は標準化したもの又は共通化したものを使用
することができ、空気調和機のトータルとしての構成を
簡単化し、コストを低減することができる。In this embodiment, the opening degree of the electronic expansion valve on the indoor unit side can be controlled by the opening degree calculated by the outdoor unit. The electronic expansion valve of the indoor unit can be finely controlled according to the change of the cycle, so that the stability of the refrigeration cycle can be accelerated and the reliability of the compressor can be maintained. Also, since the target opening value of the electronic expansion valve of the indoor unit is determined on the outdoor unit side, even if the refrigeration cycle of the air conditioner is different, the means for determining the target opening value on the outdoor unit side is modified to perform refrigeration. What is necessary is just to adapt to the difference of the cycle, and the control means on the indoor unit side can use a standardized or common control means, so that the configuration of the air conditioner as a whole can be simplified and the cost can be reduced. .
【００２０】図３には、電子膨張弁開度補正スイッチ１
６Ａ−１，１６Ａ−２を備えた実施形態が示されてい
る。補正スイッチ１６Ａ−１，１６Ａ−２が共にオフの
場合は補正されないが、スイッチ１６Ａ−１がオンで１
６Ａ−２がオフの場合は例えば室外ユニットのメモリ１
６Ａ，１６Ｂから送信される電子膨張弁開度データを５
％増し、スイッチ１６Ａ−１がオフでスイッチ１６Ａ−
２がオンのときは１０％増し、スイッチ１６Ａ−１，１
６Ａ−２が共にオンのときは１５％増のように補正され
る。この補正されたデータと、メモリ１３Ａ，１３Ｂ上
のデータとが比較され、前述のように電子膨張弁１４
Ａ，１４Ｂの開度が制御される。FIG. 3 shows an electronic expansion valve opening correction switch 1
An embodiment with 6A-1, 16A-2 is shown. When both the correction switches 16A-1 and 16A-2 are off, no correction is performed.
When 6A-2 is off, for example, the memory 1 of the outdoor unit
The electronic expansion valve opening data transmitted from 6A and 16B is
%, The switch 16A-1 is turned off and the switch 16A-
When switch 2 is on, it increases by 10% and switches 16A-1,1
When both 6A-2 are on, correction is made to increase by 15%. The corrected data and the data on the memories 13A and 13B are compared, and the electronic expansion valve 14 is used as described above.
The opening of A and 14B is controlled.
【００２１】このように、補正スイッチが設けられてい
ると、室外ユニットに対する各室内ユニットの配管長さ
に差があり、管路による冷媒の抵抗差が生じても、これ
を補正することができ、空気調和機の冷凍サイクル全体
として適正な冷媒分配の制御が可能である。As described above, if the correction switch is provided, there is a difference in the pipe length of each indoor unit with respect to the outdoor unit, and even if a difference in resistance of the refrigerant due to the pipe line occurs, this can be corrected. In addition, it is possible to control the refrigerant distribution appropriately as the whole refrigeration cycle of the air conditioner.
【００２２】[0022]
【発明の効果】以上詳述したように、本発明によれば、
室内ユニットは、室外ユニットから送信された目標開度
の値と補正スイッチで設定されたデータとに基づいて電
子膨張弁を制御するので、各室内ユニットの配管長さや
管路による冷媒の抵抗差が生じても適正な冷媒分配の制
御が可能となる。As described in detail above, according to the present invention,
The indoor unit controls the electronic expansion valve based on the target opening value transmitted from the outdoor unit and the data set by the correction switch. Even if it occurs, it is possible to control the refrigerant distribution appropriately.
【図１】本発明の１実施形態を示す冷凍サイクル図。FIG. 1 is a refrigeration cycle diagram showing one embodiment of the present invention.
【図２】制御装置を示すブロック図。FIG. 2 is a block diagram showing a control device.
【図３】補正スイッチを備えた図２と同様な制御ブロッ
ク図。FIG. 3 is a control block diagram similar to FIG. 2 including a correction switch.
１…室外ユニット ２Ａ，２Ｂ…室内ユニット ８，１１Ａ，１１Ｂ…電子膨張弁駆動回路 ７，１４Ａ，１４Ｂ…電子膨張弁 ４，１２Ａ…伝送回路 １３Ａ，１３Ｂ…メモリ ２１…熱源側熱交換器 ２３Ａ，２３Ｂ…利用側熱交換器 DESCRIPTION OF SYMBOLS 1 ... Outdoor unit 2A, 2B ... Indoor unit 8, 11A, 11B ... Electronic expansion valve drive circuit 7, 14A, 14B ... Electronic expansion valve 4, 12A ... Transmission circuit 13A, 13B ... Memory 21 ... Heat source side heat exchanger 23A, 23B: User side heat exchanger
Claims (2)
の室外ユニットと、利用側熱交換器及び電子膨張弁を有
する複数台の室内ユニットとを有する冷凍サイクルを備
えた空気調和機において、 前記室外ユニットは、前記室内ユニットそれぞれの前記
電子膨張弁の目標開度を算出する電子膨張弁開度演算部
と、算出された目標開度を前記室内ユニットに送信する
伝送手段とを備え、 前記室内ユニットは、データが設定可能とされた補正ス
イッチを備え、前記室外ユニットから送信された前記目
標開度の値と前記補正スイッチで設定されたデータとに
基づいて前記電子膨張弁を制御するように構成されてい
ることを特徴とする空気調和機。1. An air conditioner provided with a refrigeration cycle including one outdoor unit having a compressor and a heat source side heat exchanger, and a plurality of indoor units having a use side heat exchanger and an electronic expansion valve. The outdoor unit includes an electronic expansion valve opening calculating unit that calculates a target opening of the electronic expansion valve of each of the indoor units, and a transmission unit that transmits the calculated target opening to the indoor unit, The indoor unit includes a correction switch that allows data to be set, and controls the electronic expansion valve based on the value of the target opening transmitted from the outdoor unit and data set by the correction switch. An air conditioner characterized by being configured as follows.
縮機の吐出管に圧力センサ及び温度センサを設け、前記
室外ユニットは、前記圧力センサ及び温度センサから入
力される値に基づいて電子膨張弁開度を算出する電子膨
張弁開度演算部を有することを特徴とする空気調和機。2. The compressor according to claim 1, wherein a pressure sensor and a temperature sensor are provided in a discharge pipe of the compressor, and the outdoor unit performs electronic expansion based on values input from the pressure sensor and the temperature sensor. An air conditioner comprising an electronic expansion valve opening calculating section for calculating a valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34213899A JP3244497B2 (en) | 1999-01-01 | 1999-12-01 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34213899A JP3244497B2 (en) | 1999-01-01 | 1999-12-01 | Air conditioner |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09302708A Division JP3101241B2 (en) | 1997-11-05 | 1997-11-05 | Air conditioner and outdoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000146261A true JP2000146261A (en) | 2000-05-26 |
| JP3244497B2 JP3244497B2 (en) | 2002-01-07 |
Family
ID=18351429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34213899A Expired - Lifetime JP3244497B2 (en) | 1999-01-01 | 1999-12-01 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3244497B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125369A (en) * | 2002-10-03 | 2004-04-22 | Kiyoshi Higuchi | Method for manufacturing air-conditioner outdoor unit which does not scatter warm air to outside |
| JP2007183091A (en) * | 2005-12-29 | 2007-07-19 | Lg Electronics Inc | Air conditioner and refrigerant control method for the same |
| WO2012017829A1 (en) * | 2010-08-02 | 2012-02-09 | ダイキン工業株式会社 | Air conditioning device |
-
1999
- 1999-12-01 JP JP34213899A patent/JP3244497B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125369A (en) * | 2002-10-03 | 2004-04-22 | Kiyoshi Higuchi | Method for manufacturing air-conditioner outdoor unit which does not scatter warm air to outside |
| JP2007183091A (en) * | 2005-12-29 | 2007-07-19 | Lg Electronics Inc | Air conditioner and refrigerant control method for the same |
| WO2012017829A1 (en) * | 2010-08-02 | 2012-02-09 | ダイキン工業株式会社 | Air conditioning device |
| JP2012032108A (en) * | 2010-08-02 | 2012-02-16 | Daikin Industries Ltd | Air conditioning device |
| CN103038584A (en) * | 2010-08-02 | 2013-04-10 | 大金工业株式会社 | Air conditioning device |
| KR101421908B1 (en) * | 2010-08-02 | 2014-07-22 | 다이킨 고교 가부시키가이샤 | Air conditioning device |
| CN103038584B (en) * | 2010-08-02 | 2015-01-07 | 大金工业株式会社 | Air conditioning device |
| US8966919B2 (en) | 2010-08-02 | 2015-03-03 | Daikin Industries, Ltd. | Air conditioning apparatus having heat-source-side expansion valve control |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3244497B2 (en) | 2002-01-07 |
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