JPH07294041A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPH07294041A JPH07294041A JP11035594A JP11035594A JPH07294041A JP H07294041 A JPH07294041 A JP H07294041A JP 11035594 A JP11035594 A JP 11035594A JP 11035594 A JP11035594 A JP 11035594A JP H07294041 A JPH07294041 A JP H07294041A
- Authority
- JP
- Japan
- Prior art keywords
- capacity
- compressor
- heat exchanger
- controlling
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、有段の容量制御可能な
圧縮機を備える冷凍装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating apparatus having a compressor whose volume can be controlled in a stepwise manner.
【０００２】[0002]
【従来の技術】一般に、室外機に複数の室内機をつな
ぎ、空調負荷に応じてこれら複数の室内機の運転台数を
制御する空気調和装置は知られている。2. Description of the Related Art Generally, there is known an air conditioner in which a plurality of indoor units are connected to an outdoor unit and the operating number of the plurality of indoor units is controlled according to an air conditioning load.
【０００３】この種の例えばビル用マルチ形空気調和装
置では、空調負荷に応じて複数台の室内機の運転台数を
制御するので、室外機に設けられる圧縮機には、容量制
御が可能なインバータ制御による圧縮機が一般に用いら
れる。In this type of building multi-type air conditioner, for example, the operating number of a plurality of indoor units is controlled according to the air-conditioning load, so that the compressor provided in the outdoor unit has a capacity-controllable inverter. Controlled compressors are commonly used.
【０００４】ところが、この種のインバータ制御による
圧縮機は高価であるので、近年ではローコスト化を図る
ために、比較的安価な、例えば有段の容量制御可能なス
クロール式や、ロータリー式などの圧縮機（例えば、特
公昭６０−４０４４号公報）が用いられるようになって
いる。However, since a compressor controlled by this kind of inverter is expensive, in recent years, in order to reduce the cost, a relatively inexpensive compressor such as a scroll type or a rotary type capable of controlling the capacity is used. A machine (for example, Japanese Examined Patent Publication No. 60-4044) is used.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、この種
の圧縮機の容量制御では、圧縮過程のガスを途中からバ
イパスさせて低圧側に戻すので、容量制御率があまり良
くない。However, in the capacity control of the compressor of this kind, the gas in the compression process is bypassed from the middle to return to the low pressure side, so that the capacity control rate is not so good.
【０００６】冷房運転時には、容量制御率が良くないと
しても、高圧ガスの圧力が低下するので、その容量制御
率と入力セーブ率とがリニアに近い特性になるのであま
り問題はない。しかしながら、暖房運転時には高圧ガス
の圧力が上昇するので、容量制御率が良くないと、容量
制御性が悪くなるという問題がある。During the cooling operation, even if the capacity control rate is not good, the pressure of the high-pressure gas drops, so that the capacity control rate and the input save rate have characteristics close to linear, so there is no problem. However, since the pressure of the high-pressure gas rises during the heating operation, there is a problem that the capacity controllability deteriorates if the capacity control rate is not good.
【０００７】そこで、本発明の目的は、上述した従来の
技術が有する問題点を解消し、暖房運転時の容量制御性
が悪くならないようにした、有段の容量制御可能な圧縮
機を備える冷凍装置を提供することにある。Therefore, an object of the present invention is to eliminate the problems of the above-mentioned conventional technique and to prevent the capacity controllability during heating operation from being deteriorated, and to provide a refrigerating machine equipped with a stepwise capacity controllable compressor. To provide a device.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、第１の発明は、有段の容量制御可能な圧縮機と熱交
換器とを備える冷凍装置において、圧縮機の容量制御を
行う時に熱交換器に流れる冷媒の量を制御する制御手段
を設けたものである。In order to achieve the above object, the first aspect of the present invention controls the capacity of a compressor in a refrigerating apparatus including a stepped capacity controllable compressor and a heat exchanger. A control means for controlling the amount of the refrigerant flowing through the heat exchanger at times is provided.
【０００９】第２の発明は、室外機に複数の室内機をつ
なぎ、空調負荷に応じてこれら複数の室内機の運転台数
を制御する冷凍装置において、室外機には有段の容量制
御可能な圧縮機を設け、暖房運転時に空調負荷に応じて
室内機の運転台数を制御する時、圧縮機の容量を制御す
ると共に、室外機の室外熱交換器に流れる冷媒の量を制
御する制御手段を設けたものである。A second aspect of the present invention is a refrigerating apparatus in which a plurality of indoor units are connected to an outdoor unit and the number of operating units of the plurality of indoor units is controlled according to the air conditioning load. When a compressor is provided and the number of operating indoor units is controlled according to the air-conditioning load during heating operation, the control unit controls the capacity of the compressor and the amount of refrigerant flowing to the outdoor heat exchanger of the outdoor unit. It is provided.
【００１０】第３の発明は、室外機には有段の容量制御
可能な圧縮機と複数の室外熱交換器を設け、暖房運転時
に空調負荷に応じて室内機の運転台数を制御する時、圧
縮機の容量を制御すると共に、室外機の夫々の室外熱交
換器に流れる冷媒の量を制御する制御手段を設けたもの
である。According to a third aspect of the present invention, when the outdoor unit is provided with a compressor capable of stepwise capacity control and a plurality of outdoor heat exchangers, and the number of operating indoor units is controlled according to the air conditioning load during heating operation, A control means is provided for controlling the capacity of the compressor and controlling the amount of refrigerant flowing through each outdoor heat exchanger of the outdoor unit.
【００１１】[0011]
【作用】第１の発明によれば、冷凍負荷の値に応じてま
ず圧縮機の容量制御が行なわれる。この容量制御によっ
ても熱交換器のコイル温度が所定の温度に至らないよう
な場合には、制御手段によって、熱交換器に流れる冷媒
の量が制御される。これによれば、例えば冷媒の蒸発量
を減少させることにより、低圧圧力が低下するので、圧
縮機の容量制御性が向上する。According to the first aspect of the invention, the capacity of the compressor is first controlled according to the value of the refrigeration load. When the coil temperature of the heat exchanger does not reach the predetermined temperature even by this capacity control, the control means controls the amount of the refrigerant flowing through the heat exchanger. According to this, for example, by reducing the evaporation amount of the refrigerant, the low pressure decreases, so that the capacity controllability of the compressor is improved.
【００１２】第２の発明によれば、空調負荷の値に応じ
てまず圧縮機の容量制御が行なわれる。この容量制御に
よっても、例えば室内熱交換器のコイル温度が所定の温
度に至らないような場合には、制御手段によって、室外
熱交換器に流れる冷媒の量が制御される。これによれ
ば、例えば冷媒の蒸発量を減少させることにより、低圧
圧力が低下するので、暖房運転時の圧縮機の容量制御性
が向上する。According to the second invention, the capacity of the compressor is first controlled according to the value of the air conditioning load. Also by this capacity control, for example, when the coil temperature of the indoor heat exchanger does not reach the predetermined temperature, the control unit controls the amount of the refrigerant flowing to the outdoor heat exchanger. According to this, for example, by reducing the evaporation amount of the refrigerant, the low pressure decreases, so the capacity controllability of the compressor during heating operation improves.
【００１３】第３の発明によれば、室外熱交換器が複数
台設けられるので、冷媒の蒸発量を減少させるに際し
て、より細かく制御することができるので、それによっ
て暖房運転時の圧縮機の容量制御性が更に向上する。According to the third aspect of the invention, since a plurality of outdoor heat exchangers are provided, it is possible to perform finer control when reducing the evaporation amount of the refrigerant, so that the capacity of the compressor during heating operation can be controlled. The controllability is further improved.
【００１４】[0014]
【実施例】以下、本発明による冷凍装置の一実施例を図
面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerating apparatus according to the present invention will be described below with reference to the drawings.
【００１５】図１はマルチ形空気調和装置を示してお
り、室外機１と、複数台の室内機３1，３2 ，…３
n と、これらをつなぐユニット間配管５とからなる。FIG. 1 shows a multi-type air conditioner, which includes an outdoor unit 1 and a plurality of indoor units 3 1 , 3 2 ,.
n, and unit-to-unit piping 5 that connects them.
【００１６】室外機１は、アキュームレータ１０と、２
台の圧縮機１１1 ，１１2 と、油分離器１２と、四方弁
１３と、２台の室外熱交換器１４1 ，１４2 と、夫々の
室外熱交換器１４1 ，１４2 につながる２台の室外電動
式膨脹弁（以下、電子制御弁という）ＭＶ1 ，ＭＶ2 と
を備え、これらは冷媒管によりつながれている。１０１
は結氷防止用のコイルである。The outdoor unit 1 includes an accumulator 10 and a 2
Two compressors 11 1 and 11 2 , an oil separator 12, a four-way valve 13, two outdoor heat exchangers 14 1 and 14 2 and two outdoor heat exchangers 14 1 and 14 2 connected to each other 2 An outdoor electric expansion valve (hereinafter, referred to as an electronic control valve) MV 1 and MV 2 is provided on a stand, which are connected by a refrigerant pipe. 101
Is a coil for preventing freezing.
【００１７】ここで圧縮機１１1 ，１１2 は有段の容量
制御可能なスクロール式（或いはロータリー式など）の
圧縮機である。この２台の圧縮機１１1 ，１１2 は互い
に異なる容量のものであっても、同じ容量のものであっ
てもよく、また、この圧縮機の台数は、２台に限定され
ることはなく、１台であっても３台以上であってもよ
い。なお、１００は油面センサである。Here, the compressors 11 1 and 11 2 are scroll-type (or rotary-type, etc.) compressors capable of variable capacity control. The two compressors 11 1 and 11 2 may have different capacities or may have the same capacity, and the number of compressors is not limited to two. The number may be one or three or more. In addition, 100 is an oil level sensor.
【００１８】夫々の圧縮機１１1 ，１１2 には、圧縮過
程にあるガスを導出するための中圧吐出管１６1 ，１６
2 が設けられ、この中圧吐出管１６1 ，１６2 はアキュ
ームレータ１０につながれる。このアキュームレータ１
０にはバイパス管１７が設けられ、このバイパス管１７
は液管５ｂにつながれる。バイパス管１７には電磁弁Ｓ
Ｖ6 が設けられる。また、上述した中圧吐出管１６1 ，
１６2 には、電磁弁ＳＶ1 ，ＳＶ2 が設けられると共
に、圧縮機１１1 ，１１2 の出口の高圧吐出管１８に
は、同じく電磁弁ＳＶ3 が設けられる。The medium pressure discharge pipes 16 1 and 16 for discharging the gas in the compression process are provided in the respective compressors 11 1 and 11 2.
2 is provided, and the medium pressure discharge pipes 16 1 and 16 2 are connected to the accumulator 10. This accumulator 1
0 is provided with a bypass pipe 17, and the bypass pipe 17
Is connected to the liquid pipe 5b. Solenoid valve S on bypass pipe 17
V 6 is provided. In addition, the above-mentioned medium pressure discharge pipe 16 1 ,
The 16 2, the electromagnetic valve SV 1, SV 2 is provided, the compressor 11 1, 11 2 of the outlet pressure discharge pipe 18, like the solenoid valve SV 3 is provided.
【００１９】そして、例えば、圧縮機の容量を絞り方向
に制御する時には、電磁弁ＳＶ1 ，ＳＶ2 （或いは電磁
弁ＳＶ3 ）を開いて圧縮過程にあるガスを圧縮機の吸込
管に導くことにより容量制御する。Then, for example, when controlling the capacity of the compressor in the throttle direction, the solenoid valves SV 1 and SV 2 (or solenoid valve SV 3 ) are opened to introduce the gas in the compression process to the suction pipe of the compressor. The capacity is controlled by.
【００２０】上記の油分離器１２は、圧縮機１１1 ，１
１2 から吐出される冷媒中の油を分離するものであり、
ここで分離された油は、戻し管２１を通じて夫々の圧縮
機１１1 ，１１2 に戻される。この戻し管２１には、油
量の調整用の弁ＳＶ4 ，ＳＶ5 が設けられる。The above oil separator 12 is composed of compressors 11 1 , 1
The oil in the refrigerant discharged from 1 2 is separated,
The oil separated here is returned to the respective compressors 11 1 and 11 2 through the return pipe 21. The return pipe 21 is provided with valves SV 4 and SV 5 for adjusting the oil amount.
【００２１】上記のユニット間配管５は、四方弁１３に
つながるガス管５ａと、電子制御弁ＭＶ1 ，ＭＶ2 につ
ながる液管５ｂとからなり、これらは室内機３1 ，
３2 ，…３n の側へ延びている。The inter-unit pipe 5 comprises a gas pipe 5a connected to the four-way valve 13 and a liquid pipe 5b connected to the electronic control valves MV 1 and MV 2 , which are the indoor units 3 1 ,
It extends to the side of 3 2 , ... 3 n .
【００２２】室内機３1 を例にとって構成を説明する
と、室内機３1 は室内熱交換器３４と室内電動式膨脹弁
３５とを備えこれらは冷媒管によりつながれる。[0022] The indoor unit 3 1 illustrating the configuration as an example, the indoor unit 3 1 includes an indoor heat exchanger 34 and the indoor electric expansion valve 35 These are connected by a refrigerant pipe.
【００２３】この室内機３1 には、コイル温度を検知す
るためのセンサ３７が設けられ、このセンサ３７は制御
器５１につながれると共に、この制御器５１には電磁弁
ＳＶ1 ，ＳＶ2 ，ＳＶ3 がつながれる。The indoor unit 3 1 is provided with a sensor 37 for detecting the coil temperature. The sensor 37 is connected to a controller 51, and the controller 51 has solenoid valves SV 1 , SV 2 , SV 3 is connected.
【００２４】なお、センサ３７の代りに、ほかの実施例
として室外熱交換器１４の高圧圧力を検出するセンサ
（図示せず）を設けてもよい。Instead of the sensor 37, as another embodiment, a sensor (not shown) for detecting the high pressure of the outdoor heat exchanger 14 may be provided.
【００２５】つぎに、この実施例の作用を説明する。Next, the operation of this embodiment will be described.
【００２６】冷房運転時には、四方弁１３が図示の位置
に切り替えられ、冷媒は実線の矢印で示す方向に流れ
る。この時に、室外熱交換器１４は凝縮器となり、室内
熱交換器３４は蒸発器となり、よって室内には冷風が送
られる。暖房運転時には、四方弁１３が図示と反対の位
置（点線）に切り替えられ、冷媒は点線の矢印で示す方
向に流れる。この時に、室外熱交換器１４は蒸発器とな
り、室内熱交換器３４は凝縮器となり、よって室内には
温風が送られる。During the cooling operation, the four-way valve 13 is switched to the position shown, and the refrigerant flows in the direction shown by the solid arrow. At this time, the outdoor heat exchanger 14 serves as a condenser and the indoor heat exchanger 34 serves as an evaporator, so that cold air is sent indoors. During the heating operation, the four-way valve 13 is switched to the position (dotted line) opposite to that shown, and the refrigerant flows in the direction indicated by the dotted arrow. At this time, the outdoor heat exchanger 14 serves as an evaporator and the indoor heat exchanger 34 serves as a condenser, so that warm air is sent indoors.
【００２７】いずれの運転時においても、センサ３７で
検出されたコイル温度に基づいて空調負荷を演算し、こ
の演算した空調負荷の値に応じて、電磁弁ＳＶ1 ，ＳＶ
2 ，ＳＶ3 を開閉制御して、圧縮機１１1 ，１１2 の容
量制御を行なう。In any operation, the air conditioning load is calculated based on the coil temperature detected by the sensor 37, and the solenoid valves SV 1 , SV are calculated according to the calculated value of the air conditioning load.
2 and SV 3 are controlled to be opened and closed to control the capacity of the compressors 11 1 and 11 2 .
【００２８】この容量制御によっても室内熱交換器３４
のコイル温度が所定の温度に至らない場合には、室外熱
交換器１４1 ，１４2 につながる２台の電子制御弁ＭＶ
1 ，ＭＶ2 の開度を調節することにより、夫々の室外熱
交換器１４1 ，１４2 に流れる冷媒の量を制御する。The indoor heat exchanger 34 is also controlled by this capacity control.
If the coil temperature of the vehicle does not reach the predetermined temperature, the two electronic control valves MV connected to the outdoor heat exchangers 14 1 and 14 2 are connected.
By adjusting the openings of 1 and MV 2 , the amount of refrigerant flowing through the outdoor heat exchangers 14 1 and 14 2 is controlled.
【００２９】上記の制御は制御器５１が司る。The controller 51 controls the above control.
【００３０】更に、電子制御弁ＭＶ1 ，ＭＶ2 の開度を
調節しても室内熱交換器３４のコイル温度が所定の温度
に至らない場合には、いずれか一方の電子制御弁Ｍ
Ｖ1 ，ＭＶ2 の開度を全閉にする。Further, if the coil temperature of the indoor heat exchanger 34 does not reach the predetermined temperature even if the opening degrees of the electronic control valves MV 1 and MV 2 are adjusted, one of the electronic control valves M
Fully close the openings of V 1 and MV 2 .
【００３１】なお、この制御時には、室外熱交換器１４
に着霜したことを検知しても除霜運転には入らないよう
に制御する。During this control, the outdoor heat exchanger 14
Even if it is detected that frost has formed, control is performed so that defrosting operation does not start.
【００３２】これによれば、とくに暖房運転時において
効果を発揮する。According to this, the effect is exhibited especially during the heating operation.
【００３３】即ち、冷房運転時では、通常、外気温度が
高く、高圧ガスの圧力が低下するので、負荷変動時に、
圧縮機１１1 ，１１2 の容量制御をしただけで、室内熱
交換器３４のコイル温度が容易に所定の温度に至り易
い。That is, during the cooling operation, the outside air temperature is usually high and the pressure of the high pressure gas is lowered, so that when the load changes,
The coil temperature of the indoor heat exchanger 34 can easily reach a predetermined temperature simply by controlling the capacities of the compressors 11 1 and 11 2 .
【００３４】これに対して、暖房運転時には、外気温度
が低く、高圧ガスの圧力が上昇するので、負荷変動時
に、圧縮機１１1 ，１１2 の容量制御をしただけでは、
室内熱交換器３４のコイル温度が容易に所定の温度に至
り難い。On the other hand, during heating operation, the outside air temperature is low and the pressure of the high-pressure gas rises. Therefore, if the capacity of the compressors 11 1 and 11 2 is controlled only when the load changes,
It is difficult for the coil temperature of the indoor heat exchanger 34 to easily reach a predetermined temperature.
【００３５】その場合には、上述したように、室外熱交
換器１４1 ，１４2 につながる２台の電子制御弁Ｍ
Ｖ1 ，ＭＶ2 の開度を調節したり、いずれか一方の電子
制御弁ＭＶ1 ，ＭＶ2 の開度を全閉にしたりすることに
より、夫々の室外熱交換器１４1，１４2 に流れる冷媒
の量を制御する。In that case, as described above, the two electronic control valves M connected to the outdoor heat exchangers 14 1 and 14 2 are connected.
Or by adjusting the degree of opening of the V 1, MV 2, by one of the opening degree of the electronic control valve MV 1, MV 2 or fully closed, the outdoor heat exchanger 14 1 of the respective flows to the 14 2 Control the amount of refrigerant.
【００３６】これによれば、例えば冷媒の蒸発量を減少
させることにより、低圧圧力が低下するので、暖房運転
時の圧縮機１１1 ，１１2 の容量制御に対し、その容量
制御性を向上させることができるという効果が得られ
る。According to this, for example, by reducing the evaporation amount of the refrigerant, the low-pressure decreases, so that the capacity controllability of the compressors 11 1 , 11 2 during heating operation is improved. The effect that can be obtained is obtained.
【００３７】以上、マルチ形空気調和機について一実施
例を説明したが、この発明はそれに限定されるものでは
なく、冷凍サイクルを備える冷凍装置全般に広く適用で
きることは言うまでもない。Although one embodiment of the multi-type air conditioner has been described above, the present invention is not limited to this, and it goes without saying that the invention can be widely applied to all refrigeration systems including a refrigeration cycle.
【００３８】[0038]
【発明の効果】以上の説明から明らかなように、第１の
発明によれば、冷凍負荷の値に応じてまず圧縮機の容量
制御を行ない、この容量制御によっても例えば熱交換器
のコイル温度が所定の温度に至らないような場合には、
制御手段によって、熱交換器に流れる冷媒の量を制御す
るので、例えば冷媒の蒸発量を減少させることにより、
低圧圧力が低下するので、圧縮機の容量制御性を向上さ
せることができる。As is apparent from the above description, according to the first aspect of the present invention, the capacity of the compressor is first controlled according to the value of the refrigerating load, and this capacity control also allows, for example, the coil temperature of the heat exchanger. If the temperature does not reach the specified temperature,
Since the control means controls the amount of the refrigerant flowing to the heat exchanger, for example, by reducing the evaporation amount of the refrigerant,
Since the low pressure decreases, the capacity controllability of the compressor can be improved.
【００３９】また、第２〜第３の発明によれば、暖房運
転時の負荷変動時に、圧縮機の容量制御をしただけで
は、例えば室内熱交換器のコイル温度が容易に所定の温
度に至り難いような場合、制御手段（例えば電子制御
弁）により室外熱交換器に流れる冷媒の量を制御するの
で、圧縮機の容量制御性を向上させることができる。従
って、マルチ形空気調和機などにおいて、比較的安価
な、有段の容量制御可能なスクロール式や、ロータリー
式などの圧縮機を用いることにより、システムのローコ
スト化を達成することができる等の効果を奏する。According to the second to third inventions, the coil temperature of the indoor heat exchanger can easily reach the predetermined temperature simply by controlling the capacity of the compressor when the load changes during the heating operation. In a case where it is difficult, the control means (for example, an electronic control valve) controls the amount of the refrigerant flowing to the outdoor heat exchanger, so that the capacity controllability of the compressor can be improved. Therefore, in a multi-type air conditioner or the like, it is possible to achieve a low cost of the system by using a relatively inexpensive, step-capacity-controllable scroll-type or rotary-type compressor. Play.
【図１】本発明による冷凍装置の一実施例を示す冷媒回
路図である。FIG. 1 is a refrigerant circuit diagram showing an embodiment of a refrigerating apparatus according to the present invention.
１ 室外機 ３1 ，３2 ，…３n 室内機 ５ ユニット間配管 １０ アキュームレータ １１1 ，１１2 圧縮機 １２ 油分離器 １３ 四方弁 １４1 ，１４2 室外熱交換器 ＭＶ1 ，ＭＶ2 電子制御弁 ５１ 制御器1 outdoor unit 3 1 , 3 2 , ... 3 n indoor unit 5 piping between units 10 accumulator 11 1 , 11 2 compressor 12 oil separator 13 four-way valve 14 1 , 14 2 outdoor heat exchanger MV 1 , MV 2 electronic control Valve 51 controller
Claims (3)
とを備える冷凍装置において、前記圧縮機の容量制御を
行う時に前記熱交換器に流れる冷媒の量を制御する制御
手段を設けたことを特徴とする冷凍装置。1. A refrigeration system including a step-capacity controllable compressor and a heat exchanger, wherein a control means for controlling the amount of refrigerant flowing through the heat exchanger when the capacity of the compressor is controlled is provided. Refrigerating device characterized in that
荷に応じてこれら複数の室内機の運転台数を制御する冷
凍装置において、 室外機には有段の容量制御可能な圧縮機を設け、 暖房運転時に空調負荷に応じて室内機の運転台数を制御
する時、前記圧縮機の容量を制御すると共に、室外機の
室外熱交換器に流れる冷媒の量を制御する制御手段を設
けたことを特徴とする冷凍装置。2. A refrigeration system in which a plurality of indoor units are connected to an outdoor unit and the number of operating units of the plurality of indoor units is controlled according to an air conditioning load, wherein the outdoor unit is provided with a compressor capable of stepwise capacity control. When controlling the number of operating indoor units according to the air conditioning load during heating operation, a control means is provided for controlling the capacity of the compressor and controlling the amount of refrigerant flowing to the outdoor heat exchanger of the outdoor unit. Refrigerating device characterized by.
荷に応じてこれら複数の室内機の運転台数を制御する冷
凍装置において、 室外機には有段の容量制御可能な圧縮機と複数の室外熱
交換器を設け、 暖房運転時に空調負荷に応じて室内機の運転台数を制御
する時、前記圧縮機の容量を制御すると共に、室外機の
夫々の室外熱交換器に流れる冷媒の量を制御する制御手
段を設けたことを特徴とする冷凍装置。3. A refrigeration system in which a plurality of indoor units are connected to the outdoor unit and the number of operating units of the plurality of indoor units is controlled according to the air conditioning load, wherein the outdoor unit includes a compressor capable of stepwise capacity control and a plurality of compressors. When an outdoor heat exchanger is installed to control the number of operating indoor units according to the air conditioning load during heating operation, the capacity of the compressor is controlled and the amount of refrigerant flowing to each outdoor heat exchanger of the outdoor unit. A refrigeration system provided with a control means for controlling the refrigeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6110355A JP3059886B2 (en) | 1994-04-26 | 1994-04-26 | Refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6110355A JP3059886B2 (en) | 1994-04-26 | 1994-04-26 | Refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07294041A true JPH07294041A (en) | 1995-11-10 |
| JP3059886B2 JP3059886B2 (en) | 2000-07-04 |
Family
ID=14533677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6110355A Expired - Fee Related JP3059886B2 (en) | 1994-04-26 | 1994-04-26 | Refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3059886B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001227799A (en) * | 2000-02-18 | 2001-08-24 | Fujitsu General Ltd | Multi-chamber type air conditioner |
| JP2009121707A (en) * | 2007-11-12 | 2009-06-04 | Samsung Electronics Co Ltd | Air conditioner |
| EP2622284A1 (en) * | 2010-09-27 | 2013-08-07 | LG Electronics Inc. | A refrigerant system and a control method the same |
-
1994
- 1994-04-26 JP JP6110355A patent/JP3059886B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001227799A (en) * | 2000-02-18 | 2001-08-24 | Fujitsu General Ltd | Multi-chamber type air conditioner |
| JP2009121707A (en) * | 2007-11-12 | 2009-06-04 | Samsung Electronics Co Ltd | Air conditioner |
| JP4629083B2 (en) * | 2007-11-12 | 2011-02-09 | 三星電子株式会社 | Air conditioner |
| EP2622284A1 (en) * | 2010-09-27 | 2013-08-07 | LG Electronics Inc. | A refrigerant system and a control method the same |
| EP2622284A4 (en) * | 2010-09-27 | 2017-04-05 | LG Electronics Inc. | A refrigerant system and a control method the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3059886B2 (en) | 2000-07-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |