JPH05157374A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH05157374A JPH05157374A JP3325924A JP32592491A JPH05157374A JP H05157374 A JPH05157374 A JP H05157374A JP 3325924 A JP3325924 A JP 3325924A JP 32592491 A JP32592491 A JP 32592491A JP H05157374 A JPH05157374 A JP H05157374A
- Authority
- JP
- Japan
- Prior art keywords
- compressors
- frequency
- compressor
- air conditioning
- commercial power
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
- F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、複数台の圧縮機の運
転台数および運転周波数を空調負荷に応じて制御する空
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 for controlling the number of operating compressors and the operating frequency of a plurality of compressors according to the air conditioning load.
【０００２】[0002]
【従来の技術】一般に、複数台の室内ユニットを有する
マルチタイプの空気調和機では、室外ユニットに複数台
の圧縮機を設け、これら圧縮機の運転台数および運転周
波数を各室内ユニットの空調負荷の総和に応じて制御す
る。複数台の圧縮機としては、商用電源駆動の能力固定
圧縮機およびインバータ駆動の能力可変圧縮機がある。2. Description of the Related Art Generally, in a multi-type air conditioner having a plurality of indoor units, a plurality of compressors are provided in an outdoor unit, and the number of operating compressors and the operating frequency of these compressors are set to the air conditioning load of each indoor unit. Control according to the sum. As the plurality of compressors, there are a fixed capacity compressor driven by a commercial power source and a variable capacity compressor driven by an inverter.
【０００３】[0003]
【発明が解決しようとする課題】ただし、商用電源駆動
の能力固定圧縮機については、電源周波数が５０Ｈｚの
場合と６０Ｈｚの場合とで能力が変わるため、空調負荷
に対応する最適な能力を確保できないことがある。ひい
ては高圧側圧力が異常上昇し、高圧保護が働いて運転停
止に至ることもある。However, in a fixed capacity compressor driven by a commercial power supply, the capacity varies depending on whether the power supply frequency is 50 Hz or 60 Hz, so that the optimum capacity corresponding to the air conditioning load cannot be secured. Sometimes. As a result, the pressure on the high-pressure side rises abnormally, high-pressure protection may be activated, and operation may stop.
【０００４】この発明は上記の事情を考慮したもので、
その目的とするところは、常に空調負荷に対応する最適
な能力を確保することができ、快適性の向上が図れ、ま
た不要な運転停止を回避することができる空気調和機を
提供することにある。The present invention takes the above circumstances into consideration,
It is an object of the present invention to provide an air conditioner that can always secure an optimum capacity for air conditioning load, improve comfort, and avoid unnecessary operation stop. ..
【０００５】[0005]
【課題を解決するための手段】この発明の空気調和機
は、インバータ駆動および商用電源駆動の複数台の圧縮
機を備え、これら圧縮機の運転台数および運転周波数を
空調負荷に応じて複数のパターンに切換える空気調和機
において、上記商用電源の周波数を検出する手段と、こ
の検出結果に応じて上記パターンを補正する手段とを備
える。An air conditioner according to the present invention comprises a plurality of compressors driven by an inverter and a commercial power source, and the number of operating compressors and the operating frequency of the compressors are controlled by a plurality of patterns depending on the air conditioning load. The air conditioner that is switched to is provided with means for detecting the frequency of the commercial power supply and means for correcting the pattern according to the detection result.
【０００６】[0006]
【作用】この発明の空気調和機では、運転台数および運
転周波数のパターンを商用電源周波数に応じて補正す
る。In the air conditioner of the present invention, the pattern of the number of operating units and the operating frequency is corrected according to the commercial power supply frequency.
【０００７】[0007]
【実施例】以下、この発明の一実施例について図面を参
照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【０００８】図２において、Ａは１台の室外ユニット
で、この室外ユニットＡに分配ユニットＢを介して複数
台の室内ユニットＣ1 ，Ｃ2 ，Ｃ3 を配管接続してい
る。In FIG. 2, A is one outdoor unit, and a plurality of indoor units C 1 , C 2 , C 3 are connected to this outdoor unit A via a distribution unit B by piping.
【０００９】室外ユニットＡは、２in１タイプの圧縮機
１，２を備える。この圧縮機１，２は、それぞれ１つの
密閉ケース内に２つの圧縮機を内蔵したものである。以
下、説明の都合上、圧縮機１，２を圧縮機ケース１，２
と称する。The outdoor unit A includes 2 in 1 type compressors 1 and 2. Each of the compressors 1 and 2 has two compressors incorporated in one hermetically sealed case. Hereinafter, for convenience of explanation, the compressors 1 and 2 will be referred to as compressor cases 1 and 2.
Called.
【００１０】すなわち、圧縮機１は、インバータ駆動の
能力可変圧縮機（INV1）３、および商用電源駆動の能力
固定圧縮機（商用1 ）４を有する。圧縮機２は、インバ
ータ駆動の能力可変圧縮機（INV2）５、および商用電源
駆動の能力固定圧縮機（商用2 ）６を有する。これら圧
縮機３，４，５，６の冷媒吐出口に、それぞれ逆止弁７
を順方向に介し、さらに四方弁８を介し、室外熱交換器
９を接続する。That is, the compressor 1 has an inverter driven variable capacity compressor (INV1) 3 and a commercial power source driven fixed capacity compressor (commercial 1) 4. The compressor 2 has an inverter driven variable capacity compressor (INV2) 5 and a commercial power source driven fixed capacity compressor (commercial 2) 6. Check valves 7 are provided at the refrigerant outlets of these compressors 3, 4, 5, 6 respectively.
In the forward direction, and further through the four-way valve 8, the outdoor heat exchanger 9 is connected.
【００１１】室外熱交換器９に冷房サイクル形成用の逆
止弁１０および受液器１１を介してヘッダＨを接続す
る。このヘッダＨから室外熱交換器９にかけて、暖房用
の膨張弁１２を接続する。A header H is connected to the outdoor heat exchanger 9 via a check valve 10 for forming a cooling cycle and a liquid receiver 11. An expansion valve 12 for heating is connected from the header H to the outdoor heat exchanger 9.
【００１２】ヘッダＨに、電動式の流量調整弁（パルス
モータバルブ；以下、ＰＭＶと略称する）２１，３１，
４１、および冷房用の膨張弁２２，３２，４２と暖房サ
イクル形成用の逆止弁２３，３３，４３の並列体を介
し、室内熱交換器２４，３４，４４を接続する。室内熱
交換器２４，３４，４４にヘッダＨを接続し、そのヘッ
ダＨをアキュ―ムレ―タ１３を介して圧縮機３，４，
５，６の冷媒吸込口に接続する。こうして、室外ユニッ
トＡ、分配ユニットＢ、および室内ユニットＣ1 ，
Ｃ2，Ｃ3 において、ヒートポンプ式冷凍サイクルを構
成している。An electric flow rate adjusting valve (pulse motor valve; hereinafter abbreviated as PMV) 21, 31,
The indoor heat exchangers 24, 34, 44 are connected via a parallel body of 41, and expansion valves 22, 32, 42 for cooling and check valves 23, 33, 43 for forming a heating cycle. The header H is connected to the indoor heat exchangers 24, 34, 44, and the header H is connected to the compressors 3, 4, via the accumulator 13.
Connected to the refrigerant suction ports 5 and 6. Thus, the outdoor unit A, the distribution unit B, and the indoor unit C 1 ,
A heat pump type refrigeration cycle is constituted by C 2 and C 3 .
【００１３】すなわち、冷房運転時は図示実線矢印の方
向に冷媒を流して冷房サイクルを形成し、暖房運転時は
四方弁８の切換作動により図示破線矢印の方向に冷媒を
流して暖房サイクルを形成する。That is, during the cooling operation, the refrigerant is caused to flow in the direction indicated by the solid line arrow to form the cooling cycle, and during the heating operation, the refrigerant is caused to flow in the direction indicated by the broken arrow by the switching operation of the four-way valve 8 to form the heating cycle. To do.
【００１４】上記冷房用膨張弁２２，３２，４２はそれ
ぞれ感温筒２２ａ，３２ａ，４２ａを有しており、これ
ら感温筒を室内熱交換器２４，３４，４４のガス側冷媒
配管にそれぞれ取付ける。The cooling expansion valves 22, 32, 42 have temperature sensitive tubes 22a, 32a, 42a, respectively, which are connected to the gas side refrigerant pipes of the indoor heat exchangers 24, 34, 44, respectively. Install.
【００１５】また、圧縮機ケース１，２のそれぞれの基
準油面レベル位置に均油管接続口を設け、その両接続口
を均油管１４で接続する。この均油管１４は、潤滑油を
流通させるためのものである。圧縮機３，４，５，６の
吐出側の各逆止弁７と四方弁８との間の高圧側配管に、
圧力センサ１５を取付ける。制御回路を図３に示す。Further, oil equalizing pipe connection ports are provided at the respective reference oil surface level positions of the compressor cases 1 and 2, and both of these connection ports are connected by the oil equalizing pipe 14. The oil equalizing pipe 14 is for circulating lubricating oil. In the high-pressure side pipe between each check valve 7 and the four-way valve 8 on the discharge side of the compressors 3, 4, 5, and 6,
Mount the pressure sensor 15. The control circuit is shown in FIG.
【００１６】室外ユニットＡは室外制御部５０を備えて
いる。この室外制御部５０に分配ユニットＢの分配制御
部６０を接続し、その分配制御部６０に室内ユニットＣ
1 ，Ｃ2 ，Ｃ3 のそれぞれ室内制御部７０を接続する。The outdoor unit A has an outdoor controller 50. The distribution control unit 60 of the distribution unit B is connected to the outdoor control unit 50, and the indoor unit C is connected to the distribution control unit 60.
The indoor control units 70 for 1 , C 2 , and C 3 are respectively connected.
【００１７】室外制御部５０は、マイクロコンピュ―タ
およびその周辺回路からなる。この室外制御部５０に、
四方弁８、圧力センサ１５、インバ―タ５１，５３、ス
イッチ５２，５４、周波数検出部５５を接続する。The outdoor controller 50 comprises a microcomputer and its peripheral circuits. In this outdoor control unit 50,
The four-way valve 8, the pressure sensor 15, the inverters 51 and 53, the switches 52 and 54, and the frequency detector 55 are connected.
【００１８】インバ―タ回路５１，５３は、商用交流電
源５６の電圧を整流し、それを室外制御部５０の指令に
応じたスイッチングによって所定周波数の電圧に変換
し、出力するものである。この出力は、圧縮機モ―タ３
Ｍ，５Ｍの駆動電力となる。スイッチ５２，５４は、た
とえばリレー接点である。このスイッチ５２，５４をそ
れぞれ介して、商用交流電源５６に圧縮機モータ４Ｍ，
６Ｍを接続する。周波数検出部５５は、商用交流電源５
６の周波数（５０Ｈｚまたは６０Ｈｚ）を検出するもの
である。分配制御部６０は、マイクロコンピュ―タおよ
びその周辺回路からなる。この分配制御部６０に、ＰＭ
Ｖ２１，３１，４１を接続する。The inverter circuits 51, 53 rectify the voltage of the commercial AC power supply 56, convert it into a voltage of a predetermined frequency by switching according to a command from the outdoor control unit 50, and output it. This output is the compressor motor 3
The driving power is M and 5M. The switches 52 and 54 are relay contacts, for example. The commercial AC power supply 56 is connected to the compressor motor 4M,
Connect 6M. The frequency detection unit 55 uses the commercial AC power supply 5
6 frequencies (50 Hz or 60 Hz) are detected. The distribution control unit 60 is composed of a microcomputer and its peripheral circuits. The distribution controller 60
V21, 31, 41 are connected.
【００１９】室内制御部７０は、マイクロコンピュ―タ
およびその周辺回路からなる。この室内制御部７０に、
リモートコントロール式の操作器（以下、リモコンと略
称する）７１、および室内温度センサ７２を接続する。
そして、室内制御部７０は、次の機能手段を備える。 （１）リモコン７１の操作に基づく運転開始指令，運転
モード設定指令，および運転停止指令を分配ユニットＢ
に送る手段。 （２）室内温度センサ７２の検知温度とリモコン７１で
の設定室内温度との差を空調負荷として求め、その空調
負荷データを分配ユニットＢに送る手段。分配制御部６
０は、次の機能手段を備える。 （１）室内ユニットＣ1 ，Ｃ2 ，Ｃ3 の空調負荷の総和
を求め、その総合空調負荷データを室外ユニットＡに送
る手段。 （２）室内ユニットＣ1 ，Ｃ2 ，Ｃ3 の空調負荷に応じ
てＰＭＶ２１，３１，４１の開度を制御する手段。室外
制御部５０は、次の機能手段を備える。 （１）圧縮機３，４，５，６の運転台数および運転周波
数を空調負荷の総和に応じて複数のパターンに切換える
手段。 （２）圧力センサ１５の検知圧力が異常上昇して設定値
に達すると、圧縮機３，４，５，６の運転を停止する高
圧保護手段。 （３）周波数検出部５５の検出結果に応じて上記パター
ンを補正する手段。次に、図１および図３を参照しなが
ら作用を説明する。運転時、圧縮機３，４，５，６の運
転台数および運転周波数を空調負荷の総和に応じて複数
のパターンI ，II，III ，IVに切換える。すなわち、空
調負荷が小さいとき（Ｌ1 〜Ｌ2 ）、パターンI を選択
して圧縮機３の能力可変運転を実行する。空調負荷が少
し増すと（Ｌ2 〜Ｌ3 ）、パターンIIを選択して圧縮機
３，５のそれぞれ能力可変運転を実行する。空調負荷が
さらに増すと（Ｌ3 〜Ｌ4 ）、パターンIII を選択して
圧縮機３，５の能力可変運転および圧縮機４の能力固定
運転を実行する。空調負荷が大きくなると（Ｌ4 〜
Ｌ5）、パターンIVを選択して圧縮機３，５の能力可変
運転および圧縮機４，６の能力固定運転を実行する。The indoor controller 70 comprises a microcomputer and its peripheral circuits. In this indoor control unit 70,
A remote control type operation device (hereinafter, abbreviated as a remote control) 71 and an indoor temperature sensor 72 are connected.
The indoor control unit 70 includes the following functional means. (1) Distribution unit B issues an operation start command, an operation mode setting command, and an operation stop command based on the operation of remote controller 71.
Means to send to. (2) A means for obtaining the difference between the temperature detected by the indoor temperature sensor 72 and the indoor temperature set by the remote controller 71 as an air conditioning load, and sending the air conditioning load data to the distribution unit B. Distribution control unit 6
0 has the following functional means. (1) A means for obtaining the sum of the air conditioning loads of the indoor units C 1 , C 2 , C 3 and sending the comprehensive air conditioning load data to the outdoor unit A. (2) A means for controlling the opening degree of the PMVs 21, 31, 41 according to the air conditioning loads of the indoor units C 1 , C 2 , C 3 . The outdoor control unit 50 includes the following functional means. (1) Means for switching the number of operating compressors 3, 4, 5, 6 and operating frequency to a plurality of patterns in accordance with the sum of air conditioning loads. (2) High pressure protection means for stopping the operation of the compressors 3, 4, 5, 6 when the pressure detected by the pressure sensor 15 rises abnormally and reaches a set value. (3) A means for correcting the pattern according to the detection result of the frequency detection unit 55. Next, the operation will be described with reference to FIGS. 1 and 3. During operation, the number of operating compressors 3, 4, 5, 6 and operating frequency are switched to a plurality of patterns I, II, III, IV according to the total air conditioning load. That is, when the air conditioning load is small (L 1 to L 2 ), the pattern I is selected and the capacity variable operation of the compressor 3 is executed. When the air-conditioning load increases slightly (L 2 ~L 3), to perform the respective variable capacity operation of the compressor 3 and 5 to select the pattern II. When the air conditioning load further increases (L 3 to L 4 ), the pattern III is selected and the variable capacity operation of the compressors 3 and 5 and the fixed capacity operation of the compressor 4 are executed. When the air conditioning load increases (L 4 ~
L 5 ), pattern IV is selected to perform variable capacity operation of the compressors 3 and 5 and fixed capacity operation of the compressors 4 and 6.
【００２０】ところで、圧縮機４や圧縮機６の能力固定
運転が存在するパターンIII ，IVでは、電源５６の周波
数が５０Ｈｚの場合と６０Ｈｚの場合とで、能力に差が
生じる。つまり、図１に斜線で示すように、５０Ｈｚで
は圧縮機４や圧縮機６の発揮する能力が６０Ｈｚの場合
よりも低くなる。そこで、周波数検出部５５の検出結果
に基づき、パターンII，III ，IVを次のように補正す
る。By the way, in patterns III and IV in which the fixed capacity operation of the compressor 4 and the compressor 6 exists, there is a difference in capacity between the case where the frequency of the power source 56 is 50 Hz and the case where it is 60 Hz. That is, as shown by the diagonal lines in FIG. 1, at 50 Hz, the capabilities of the compressor 4 and the compressor 6 are lower than at 60 Hz. Therefore, the patterns II, III, and IV are corrected as follows based on the detection result of the frequency detection unit 55.
【００２１】まず、５０Ｈｚのとき、パターンII，III
の切換点を６０Ｈｚのときのそれよりも低負荷側に所定
値αだけシフトする。さらに、パターンIII ，IVの切換
点を６０Ｈｚのときのそれよりも低負荷側に所定値βだ
けシフトする。First, at 50 Hz, patterns II and III
The switching point of is shifted to a lower load side than that at 60 Hz by a predetermined value α. Further, the switching points of the patterns III and IV are shifted by a predetermined value β to a lower load side than that at 60 Hz.
【００２２】そして、５０Ｈｚでは、パターンIII にお
ける圧縮機３の能力（＝運転周波数）を６０Ｈｚの場合
のそれよりも所定値だけ低くするとともに、パターンIV
における圧縮機３の能力を６０Ｈｚの場合のそれよりも
所定値だけ低くする。これは、パターンの切換点をシフ
トしたことによって生じる余計な能力増大分を減らすた
めのものである。Then, at 50 Hz, the capacity (= operating frequency) of the compressor 3 in pattern III is made lower than that in the case of 60 Hz by a predetermined value, and at the same time, in pattern IV.
The capacity of the compressor 3 is reduced by a predetermined value from that in the case of 60 Hz. This is to reduce an unnecessary increase in capacity caused by shifting the pattern switching point.
【００２３】このように、電源周波数に応じてパターン
II，III ，IVの切換点をシフトすることにより、常に空
調負荷に対応する最適な能力を確保することができる。
よって、快適性の向上が図れる。また、高圧側圧力の異
常上昇を防ぐことができ、高圧保護による不要な運転停
止を回避することができる。In this way, the pattern is changed according to the power supply frequency.
By shifting the switching point between II, III, and IV, it is possible to always ensure the optimum capacity for the air conditioning load.
Therefore, comfort can be improved. Further, it is possible to prevent an abnormal increase in the high-pressure side pressure, and avoid unnecessary operation stop due to high-pressure protection.
【００２４】なお、上記実施例では、電源周波数に応じ
てパターンの切換点をシフトしたが、その他に、５０Ｈ
ｚ時の圧縮機３または圧縮機５の運転周波数を６０Ｈｚ
時のそれよりも高く設定する構成としてもよい。In the above embodiment, the pattern switching point is shifted according to the power supply frequency.
The operating frequency of the compressor 3 or the compressor 5 at z is 60 Hz.
The configuration may be set higher than that of time.
【００２５】[0025]
【発明の効果】以上述べたようにこの発明によれば、運
転台数および運転周波数の切換えのパターンを商用電源
周波数に応じて補正する構成としたので、常に空調負荷
に対応する最適な能力を確保することができ、快適性の
向上が図れ、また不要な運転停止を回避することができ
る空気調和機を提供できる。As described above, according to the present invention, the pattern of switching the number of operating units and the operating frequency is corrected according to the commercial power supply frequency, so that the optimum capacity for always responding to the air conditioning load is secured. Therefore, it is possible to provide the air conditioner which can improve the comfort and can avoid unnecessary operation stop.
【図１】同実施例における運転台数および運転周波数の
パターンを示す図。FIG. 1 is a diagram showing a pattern of operating numbers and operating frequencies in the embodiment.
【図２】この発明の一実施例の冷凍サイクルの構成を示
す図。FIG. 2 is a diagram showing a configuration of a refrigeration cycle according to an embodiment of the present invention.
【図３】同実施例の制御回路の構成を示すブロック図。FIG. 3 is a block diagram showing a configuration of a control circuit of the same embodiment.
【図４】同実施例におけるパターン切換点のシフトにつ
いて説明するためのフローチャート。FIG. 4 is a flowchart for explaining shifting of pattern switching points in the embodiment.
Ａ…室外ユニット、Ｂ…分配ユニット、Ｃ1 ，Ｃ2 ，Ｃ
3 …室内ユニット、１，２…２in１タイプの圧縮機、
３，５…能力可変圧縮機、４，６…能力固定圧縮機、５
０…室外制御部、５５…周波数検出部、５６…商用交流
電源、６０…分配制御部、７０…室内制御部。A ... Outdoor unit, B ... Distribution unit, C 1 , C 2 , C
3 ... Indoor unit, 1, 2 ... 2 in 1 type compressor,
3, 5 ... Variable capacity compressor, 4, 6 ... Fixed capacity compressor, 5
0 ... outdoor control unit, 55 ... frequency detection unit, 56 ... commercial AC power supply, 60 ... distribution control unit, 70 ... indoor control unit.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１月２４日[Submission date] January 24, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００９】室外ユニットＡは、２つの圧縮機を１つの
ケース内に収めたタイプの圧縮機１、および同じく２つ
の圧縮機を１つのケース内に収めたタイプの圧縮機２を
備える。以下、説明の都合上、圧縮機１，２を圧縮機ケ
ース１，２と称する。The outdoor unit A includes two compressors in one.
Compressor 1 of the type housed in the case, and two
Compressor 2 of the type in which the compressor of
Prepare Hereinafter, the compressors 1 and 2 will be referred to as compressor cases 1 and 2 for convenience of description.
Claims (1)
数台の圧縮機を備え、これら圧縮機の運転台数および運
転周波数を空調負荷に応じて複数のパターンに切換える
空気調和機において、前記商用電源の周波数を検出する
手段と、この検出結果に応じて前記パターンを補正する
手段とを備えたことを特徴とする空気調和機。1. An air conditioner comprising a plurality of compressors driven by an inverter and a commercial power supply, wherein the number of operating compressors and the operating frequency of the compressors are switched to a plurality of patterns according to an air conditioning load. An air conditioner characterized by comprising: means for detecting the above, and means for correcting the pattern according to the detection result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32592491A JP3163133B2 (en) | 1991-12-10 | 1991-12-10 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32592491A JP3163133B2 (en) | 1991-12-10 | 1991-12-10 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05157374A true JPH05157374A (en) | 1993-06-22 |
| JP3163133B2 JP3163133B2 (en) | 2001-05-08 |
Family
ID=18182118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32592491A Expired - Fee Related JP3163133B2 (en) | 1991-12-10 | 1991-12-10 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3163133B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125660A (en) * | 2004-10-26 | 2006-05-18 | Sanyo Electric Co Ltd | Air conditioning device |
| EP1693634A1 (en) * | 2005-02-22 | 2006-08-23 | Lg Electronics Inc. | Method for controlling the operation of an air-conditioner |
| US7240502B2 (en) | 2003-11-04 | 2007-07-10 | Lg Electronics Inc. | Method for controlling operation of air-conditioner |
| JP2010249452A (en) * | 2009-04-17 | 2010-11-04 | Mitsubishi Electric Corp | Air conditioner |
| JP2011169533A (en) * | 2010-02-19 | 2011-09-01 | Mitsubishi Heavy Ind Ltd | Heat source system and method of controlling the same |
| EP1985939A4 (en) * | 2006-02-17 | 2015-03-11 | Daikin Ind Ltd | Air conditioner |
| JP2015203349A (en) * | 2014-04-14 | 2015-11-16 | オリオン機械株式会社 | Exhaust system and exhaust device control method |
-
1991
- 1991-12-10 JP JP32592491A patent/JP3163133B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7240502B2 (en) | 2003-11-04 | 2007-07-10 | Lg Electronics Inc. | Method for controlling operation of air-conditioner |
| JP2006125660A (en) * | 2004-10-26 | 2006-05-18 | Sanyo Electric Co Ltd | Air conditioning device |
| JP4508823B2 (en) * | 2004-10-26 | 2010-07-21 | 三洋電機株式会社 | Air conditioner |
| EP1693634A1 (en) * | 2005-02-22 | 2006-08-23 | Lg Electronics Inc. | Method for controlling the operation of an air-conditioner |
| EP1985939A4 (en) * | 2006-02-17 | 2015-03-11 | Daikin Ind Ltd | Air conditioner |
| JP2010249452A (en) * | 2009-04-17 | 2010-11-04 | Mitsubishi Electric Corp | Air conditioner |
| JP2011169533A (en) * | 2010-02-19 | 2011-09-01 | Mitsubishi Heavy Ind Ltd | Heat source system and method of controlling the same |
| JP2015203349A (en) * | 2014-04-14 | 2015-11-16 | オリオン機械株式会社 | Exhaust system and exhaust device control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3163133B2 (en) | 2001-05-08 |
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