JPH05141802A - Multi-chamber type heat pump operated air conditioner - Google Patents
Multi-chamber type heat pump operated air conditionerInfo
- Publication number
- JPH05141802A JPH05141802A JP3308747A JP30874791A JPH05141802A JP H05141802 A JPH05141802 A JP H05141802A JP 3308747 A JP3308747 A JP 3308747A JP 30874791 A JP30874791 A JP 30874791A JP H05141802 A JPH05141802 A JP H05141802A
- Authority
- JP
- Japan
- Prior art keywords
- way valve
- heat exchanger
- indoor
- valve
- air conditioner
- 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
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、二室あるいは三室とい
ったように、一台の室外機に対し、複数の室内機を接続
したヒートポンプ式空気調和機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump type air conditioner in which a plurality of indoor units are connected to one outdoor unit such as two or three rooms.
【０００２】[0002]
【従来の技術】近年、空気調和機も個別化が進み、各ゾ
ーンを少ない機器で冷暖房可能なヒートポンプ式空気調
和機の普及が著しい。2. Description of the Related Art In recent years, individualization of air conditioners has progressed, and heat pump type air conditioners capable of cooling and heating each zone with a small number of devices have been widely used.
【０００３】従来、この種の空気調和機に用いられる冷
媒回路について、その構成を図２を参照しながら説明す
る。A conventional refrigerant circuit used in this type of air conditioner will be described with reference to FIG.
【０００４】図に示すように、圧縮機１０１、四方弁１
０２、室外熱交換器１０３、減圧装置１０４、電磁弁１
０５、１０６、液側三方弁１０７、１０８、ガス側三方
弁１０９、１１０を順次接続して冷媒回路を構成した室
外機１１１に、前記室外機１１１の前記液側三方弁１０
７、１０８とガス側三方弁１０９、１１０との間に室内
熱交換器１１２、１１３を内蔵した室内機１１４、１１
５を配管１１６、１１７、１１８、１１９で接続し冷媒
回路を形成している。As shown in the figure, a compressor 101, a four-way valve 1
02, outdoor heat exchanger 103, pressure reducing device 104, solenoid valve 1
05, 106, liquid-side three-way valves 107, 108, and gas-side three-way valves 109, 110 are sequentially connected to an outdoor unit 111 that constitutes a refrigerant circuit, and the liquid-side three-way valve 10 of the outdoor unit 111 is connected to the outdoor unit 111.
Indoor units 114, 11 in which indoor heat exchangers 112, 113 are built between 7, 108 and gas side three-way valves 109, 110
5 are connected by pipes 116, 117, 118, and 119 to form a refrigerant circuit.
【０００５】上記構成において、図２中の実線矢印は冷
房時の、また、破線矢印は暖房時の冷媒の流れを示して
いる。仮に冷房時は、圧縮機１０１で圧縮された冷媒
が、四方弁１０２を経由し室外熱交換器１０３で凝縮さ
れ減圧装置１０４を流れる。ここで減圧された冷媒は電
磁弁１０５、１０６、液側三方弁１０７、１０８、配管
１１６、１１７を経由し、室内機１１４、１１５に内蔵
された室内熱交換器１１２、１１３へと流れ、この冷媒
は蒸発器として作用する室内熱交換器内１１２、１１３
で蒸発し室内空気を冷房した後、配管１１８、１１９、
ガス側三方弁１０９、１１０、四方弁１０２を通り圧縮
機１０１へと戻るといったサイクルを繰り返す。また、
暖房時は圧縮機１０１で圧縮された冷媒は四方弁１０
２、ガス側三方弁１０９、１１０、配管１１８、１１９
を経由して室内機１１４、１１５に内蔵された室内熱交
換器１１２、１１３で凝縮され凝縮熱により室内空気を
暖房する。ここで、凝縮された冷媒は、配管１１６、１
１７、液側三方弁１０７、１０８、電磁弁１０５、１０
６を通り減圧装置１０４で減圧され室外熱交換器１０３
で蒸発し、四方弁１０２を経由し圧縮機１０１に戻るサ
イクルを繰り返すものであった。In the above structure, solid arrows in FIG. 2 indicate the flow of the refrigerant during cooling, and broken arrows indicate the flow of the refrigerant during heating. Temporarily, during cooling, the refrigerant compressed by the compressor 101 passes through the four-way valve 102, is condensed in the outdoor heat exchanger 103, and flows through the decompression device 104. The refrigerant whose pressure has been reduced here flows through the solenoid valves 105 and 106, the liquid side three-way valves 107 and 108, and the pipes 116 and 117 to the indoor heat exchangers 112 and 113 incorporated in the indoor units 114 and 115. The refrigerant is inside the indoor heat exchanger 112, 113 that acts as an evaporator.
After cooling the indoor air by evaporating with the pipes 118, 119,
The cycle of returning to the compressor 101 through the gas side three-way valves 109 and 110 and the four-way valve 102 is repeated. Also,
The refrigerant compressed by the compressor 101 during heating is a four-way valve 10.
2, gas side three-way valve 109, 110, piping 118, 119
The indoor air is heated by the heat of condensation that is condensed in the indoor heat exchangers 112 and 113 built in the indoor units 114 and 115 via the. Here, the condensed refrigerant is the pipes 116, 1
17, liquid side three-way valves 107, 108, solenoid valves 105, 10
6, the pressure is reduced by the pressure reducing device 104, and the outdoor heat exchanger 103
The cycle of evaporating and returning to the compressor 101 via the four-way valve 102 was repeated.
【０００６】[0006]
【発明が解決しようとする課題】このような従来の空気
調和機の冷媒回路では、室内機１１４と１１５を異なる
場所に設置しても、必ず双方の室内機１１４、１１５は
冷房運転か、あるいは暖房運転のいずれか一方しか同時
運転が出来ないため、一方の室内機では冷房運転を行い
たく、他方の室内機では暖房運転を行いたいといった条
件のときは、これらの運転が行えず、これらの条件のも
とでは、こうした要求を十分満足できないという問題が
あった。したがって、こうした冷暖房を同時に行う冷媒
回路を構成するためには、高価な冷媒制御装置を多く用
いなければならないという問題もあった。In such a refrigerant circuit of a conventional air conditioner, even if the indoor units 114 and 115 are installed in different places, both indoor units 114 and 115 are always in a cooling operation, or Since only one of the heating operations can be operated at the same time, under the condition that one indoor unit wants to perform cooling operation and the other indoor unit wants to perform heating operation, these operations cannot be performed. Under the conditions, there is a problem that these requirements cannot be sufficiently satisfied. Therefore, there is also a problem that many expensive refrigerant control devices must be used in order to configure such a refrigerant circuit that simultaneously performs cooling and heating.
【０００７】本発明は上記課題を解決するもので、複数
の室内機を冷房運転と暖房運転を同時に行うことのでき
る空気調和機の安価な冷媒回路をなした多室形ヒートポ
ンプ式空気調和機を提供することを目的とする。The present invention is to solve the above problems and provides a multi-chamber heat pump type air conditioner having an inexpensive refrigerant circuit of an air conditioner capable of simultaneously performing cooling operation and heating operation for a plurality of indoor units. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】本発明の多室形ヒートポ
ンプ式空気調和機は上記目的を達成するために、圧縮機
と、四方弁と、室外熱交換器と、前記室外熱交換器より
分岐した一方に、第一電動膨張弁と、第一液側三方弁、
第一室内熱交換器と、第一ガス側三方弁と、第一大口径
電磁弁を、他方に第二電動膨張弁と、第二液側三方弁
と、第二室内熱交換器と、第二ガス側三方弁と、第二大
口径電磁弁を順次連結し、前記第一・第二ガス側三方弁
と第一・第二大口径電磁弁の間と圧縮機の吐出管とを結
ぶバイパス管の途中に各々電磁弁を設けた空気調和機の
冷媒回路の構成としたものである。To achieve the above object, a multi-chamber heat pump type air conditioner of the present invention has a compressor, a four-way valve, an outdoor heat exchanger, and a branch from the outdoor heat exchanger. On the other hand, the first electric expansion valve, the first liquid side three-way valve,
The first indoor heat exchanger, the first gas side three-way valve, the first large-diameter solenoid valve, the second electric expansion valve on the other, the second liquid side three-way valve, the second indoor heat exchanger, A bypass that connects the two-gas side three-way valve and the second large-diameter solenoid valve in sequence, and connects the first and second gas-side three-way valves and the first and second large-diameter solenoid valves to the discharge pipe of the compressor. The refrigerant circuit of the air conditioner is provided with electromagnetic valves in the middle of the tubes.
【０００９】[0009]
【作用】本発明は上記した構成により、第一・第二大口
径電磁弁と第一・第二電磁弁の開閉を組み合わすことに
より、従来の冷房１台・２台運転あるいは暖房１台・２
台運転に加え、２台の室内機で同時に冷房運転と暖房運
転を行うことのできるものである。According to the present invention, by combining the opening and closing of the first and second large-diameter solenoid valves and the first and second solenoid valves with the above-described configuration, the conventional cooling of one unit and two units of operation or heating of one unit can be achieved. Two
In addition to the stand operation, two indoor units can simultaneously perform the cooling operation and the heating operation.
【００１０】[0010]
【実施例】以下、本発明の一実施例について、図１を参
照しながら説明する。図に示すように、圧縮機１と、四
方弁２と、室外熱交換器３と、前記室外熱交換器３より
分岐し各室内熱交換器に対応して第一電動膨張弁４と、
第一液側三方弁６、第一室内熱交換器８を内蔵した第一
室内機１０と、第一ガス側三方弁１２と、第一大口径電
磁弁１４を接続し、他方には、第二電動膨張弁５と、第
二液側三方弁７と、第二室内熱交換器９を内蔵した第二
室内機１１と、第二ガス側三方弁１３と、第二大口径電
磁弁１５を順次連結し、前記第一・第二ガス側三方弁１
２、１３と第一・第二大口径電磁弁１４、１５との間よ
り導出し、前記圧縮機１の吐出管１８とを結ぶバイパス
管１９の途中に第一・第二電磁弁１６、１７を設けた空
気調和機の冷媒回路の構成としている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. As shown in the figure, a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, and a first electric expansion valve 4 branching from the outdoor heat exchanger 3 and corresponding to each indoor heat exchanger,
The first indoor unit 10 including the first liquid-side three-way valve 6 and the first indoor heat exchanger 8, the first gas-side three-way valve 12, and the first large-diameter solenoid valve 14 are connected, and the other is connected to the first The second electric expansion valve 5, the second liquid side three-way valve 7, the second indoor unit 11 having the second indoor heat exchanger 9 built therein, the second gas side three-way valve 13, and the second large diameter solenoid valve 15 are provided. Sequentially connected, the first and second gas side three-way valve 1
2 and 13 and the first and second large-diameter solenoid valves 14 and 15, and the first and second solenoid valves 16 and 17 are provided in the middle of a bypass pipe 19 that connects the discharge pipe 18 of the compressor 1 with each other. Is provided for the refrigerant circuit of the air conditioner.
【００１１】上記構成において、第一の室内機１０は冷
房運転、第二の室内機１１は暖房運転するときと、各室
内機を冷暖房同時運転するときについて説明する。図１
中の実線矢印は第一室内機１０の冷房１台運転時であ
り、破線矢印は第二室内機１１の暖房１台運転時であ
り、太線矢印は第一室内機１０が暖房運転時を示し、さ
らに第二室内機１１は冷房運転をするといったように、
各室内機が同時運転時の冷媒の流れを示している。ま
ず、第一室内機１０の冷房１台運転では、圧縮機１で圧
縮された冷媒は、四方弁２を通り室外熱交換機３で凝縮
される。ここで、第一電動膨張弁４を適度に開け、第二
電動膨張弁５を閉めると、冷媒は第一室内機１０のみに
流れ、第一室内機１０に内蔵された第一室内熱交換器８
内で蒸発し室内空気を冷房し、第一ガス側三方弁１２を
通って開口している第一大口径電磁弁１４を通過すると
四方弁２を経由して圧縮機１に戻るといったサイクルを
繰り返す。この際、第二大口径電磁弁１５と第一・第二
電磁弁１６、１７は閉じている。In the above configuration, a description will be given of the case where the first indoor unit 10 is in the cooling operation, the second indoor unit 11 is in the heating operation, and the case where the indoor units are simultaneously operated for cooling and heating. Figure 1
The solid arrow in the middle indicates the operation of one cooling unit of the first indoor unit 10, the dashed arrow indicates the operation of one heating unit of the second indoor unit 11, and the thick arrow indicates the operation of the first indoor unit 10 in the heating operation. In addition, the second indoor unit 11 performs cooling operation,
The flow of the refrigerant when each indoor unit is operating simultaneously is shown. First, in the single cooling operation of the first indoor unit 10, the refrigerant compressed by the compressor 1 passes through the four-way valve 2 and is condensed by the outdoor heat exchanger 3. Here, when the first electric expansion valve 4 is appropriately opened and the second electric expansion valve 5 is closed, the refrigerant flows only in the first indoor unit 10, and the first indoor heat exchanger built in the first indoor unit 10 8
A cycle is repeated in which the inside air is cooled to cool the indoor air, and when it passes through the first large-diameter solenoid valve 14 that opens through the first gas side three-way valve 12, it returns to the compressor 1 via the four-way valve 2. .. At this time, the second large diameter solenoid valve 15 and the first and second solenoid valves 16 and 17 are closed.
【００１２】次に、第二室内機１１の暖房１台運転で
は、破線矢印に示すように圧縮機１より吐出した冷媒
は、四方弁２で第二大口径電磁弁１５へと導かれ、第二
ガス側三方弁１３を通り第二室内機１１内の第二室内熱
交換器９で室内空気と熱交換し暖房を行う。前記第二室
内熱交換器９で凝縮された冷媒は、第二液側三方弁７と
開口された第二電動膨張弁５を通り室外熱交換器３を流
れる。前記室外熱交換器３を流れる冷媒は蒸発し、四方
弁２を経由して圧縮機１に戻る。このとき、第一大口径
電磁弁１４と第一・第二電磁弁１６、１７は閉じてい
る。Next, in the single heating operation of the second indoor unit 11, the refrigerant discharged from the compressor 1 is guided by the four-way valve 2 to the second large-diameter solenoid valve 15 as shown by the broken line arrow, The second indoor heat exchanger 9 in the second indoor unit 11 passes through the two-gas three-way valve 13 to exchange heat with the indoor air for heating. The refrigerant condensed in the second indoor heat exchanger 9 flows through the outdoor heat exchanger 3 through the second liquid-side three-way valve 7 and the opened second electric expansion valve 5. The refrigerant flowing through the outdoor heat exchanger 3 evaporates and returns to the compressor 1 via the four-way valve 2. At this time, the first large-diameter solenoid valve 14 and the first and second solenoid valves 16 and 17 are closed.
【００１３】次に、第一室内機１０で暖房運転をし、第
二室内機１１では冷房運転を行う冷暖房同時運転では、
圧縮機１を出た冷媒は吐出管１８から四方弁２側とバイ
パス管１９側の二方向に分かれる。そこで、第一室内機
１０では暖房運転を、第二室内機１１では冷房運転にす
るときを仮定して冷房回路では、四方弁２に入った冷媒
は室外熱交換器３で凝縮され高圧液となったのち冷媒分
岐点２０へと流れ、第二電動膨張弁５で減圧されて第二
液側三方弁をながれ第二室内機１１で蒸発して第二室内
機１１側を冷房する。一方、暖房回路ではバイパス管を
通る高圧ガス冷媒は、開いた電磁弁１６を通過する。こ
の後、冷媒は第一大口径電磁弁１４が閉じているため、
第一ガス三方弁１２を通って第一室内機１０に入り、こ
こで凝縮され高圧液となり室内空気を暖房した後、第一
液側三方弁６と適度に開いた第一電動膨張弁４を通過
し、前述の冷房時の室外熱交換器３を出てきた高圧液冷
媒と冷媒分岐点２０で合流する。合流した冷媒は適度に
開いた第二電動膨張弁５と、第二液側三方弁７を通り第
二室内機１１で蒸発し、低圧ガスとなり室内空気を冷房
した後、第二ガス側三方弁１３、第二大口径電磁弁１
５、さらに四方弁２を経由して圧縮機１に戻ってくるサ
イクルを繰り返す。Next, in the simultaneous heating and cooling operation in which the first indoor unit 10 performs heating operation and the second indoor unit 11 performs cooling operation,
The refrigerant discharged from the compressor 1 is divided from the discharge pipe 18 into two directions of the four-way valve 2 side and the bypass pipe 19 side. Therefore, assuming that the heating operation is performed in the first indoor unit 10 and the cooling operation is performed in the second indoor unit 11, in the cooling circuit, the refrigerant that has entered the four-way valve 2 is condensed in the outdoor heat exchanger 3 and becomes a high-pressure liquid. After that, the refrigerant flows to the branch point 20, is decompressed by the second electric expansion valve 5, flows through the second liquid side three-way valve, evaporates in the second indoor unit 11, and cools the second indoor unit 11 side. On the other hand, in the heating circuit, the high pressure gas refrigerant passing through the bypass pipe passes through the opened solenoid valve 16. After this, since the first large-diameter solenoid valve 14 is closed for the refrigerant,
After passing through the first gas three-way valve 12 and entering the first indoor unit 10, where it is condensed to become high-pressure liquid and heats the indoor air, the first liquid-side three-way valve 6 and the first electrically-operated expansion valve 4 opened appropriately. The high-pressure liquid refrigerant that has passed through and exited the outdoor heat exchanger 3 during cooling is joined at the refrigerant branch point 20. The combined refrigerant passes through the appropriately opened second electric expansion valve 5 and the second liquid side three-way valve 7 to evaporate in the second indoor unit 11 to become low-pressure gas to cool the indoor air, and then the second gas side three-way valve. 13, second large-diameter solenoid valve 1
5. The cycle of returning to the compressor 1 via the four-way valve 2 is repeated.
【００１４】なお、この他に冷房２台、暖房２台運転、
本説明の第一室内機と第二室内機を入れ換えた状態での
冷房、暖房それぞれの一台運転、さらには冷暖房同時運
転も可能である。In addition to this, operation of two cooling units and two heating units,
It is also possible to perform one cooling operation and one heating operation in a state where the first indoor unit and the second indoor unit of the present description are interchanged, and further simultaneous cooling and heating operation.
【００１５】このように本発明の実施例の空気調和機の
冷媒回路によれば、第一・第二大口径電磁弁１４、１
５、第一・第二電磁弁１６、１７の開閉の組合せを変化
させることにより、冷媒の流れを制御し、第一室内機１
０と第二室内機１１の冷房、暖房を自由に変えることが
可能となる。As described above, according to the refrigerant circuit of the air conditioner of the embodiment of the present invention, the first and second large diameter solenoid valves 14 and 1 are provided.
5, the flow of the refrigerant is controlled by changing the combination of opening and closing the first and second solenoid valves 16 and 17, and the first indoor unit 1
0 and the second indoor unit 11 can be freely changed between cooling and heating.
【００１６】[0016]
【発明の効果】以上の実施例から明らかなように本発明
によれば、前記室外熱交換器と各々の室内熱交換器の間
に電動膨張弁を、各々の室内熱交換器と四方弁の間に大
口径電磁弁を、各々の室内熱交換器と圧縮機との間のバ
イパス管の途中に電磁弁を介在させ、それぞれの弁を制
御することにより、ビルディングや住宅等において、一
方の室内機では冷房運転を、他方の室内機では暖房運転
を行いたいとき、異なる場所の冷房と暖房を同時に行う
ことができ、簡易にして、かつ至便性のある多室形ヒー
トポンプ式空気調和機を提供できる。As is apparent from the above embodiments, according to the present invention, an electric expansion valve is provided between the outdoor heat exchanger and each indoor heat exchanger, and each indoor heat exchanger and each four-way valve are provided. A large-diameter solenoid valve is placed between the indoor heat exchanger and the compressor, and a solenoid valve is inserted in the middle of the bypass pipe between the indoor heat exchanger and the compressor. When you want to perform cooling operation in one unit and heating operation in the other indoor unit, you can provide cooling and heating at different locations at the same time, providing a simple and convenient multi-room heat pump air conditioner it can.
【図１】本発明の一実施例の多室形ヒートポンプ式空気
調和機の冷媒回路図FIG. 1 is a refrigerant circuit diagram of a multi-chamber heat pump type air conditioner according to an embodiment of the present invention.
【図２】従来の多室形ヒートポンプ式空気調和機の冷媒
回路図FIG. 2 is a refrigerant circuit diagram of a conventional multi-chamber heat pump type air conditioner.
１ 圧縮機 ２ 四方弁 ３ 室外熱交換器 ４ 第一電動膨張弁 ５ 第二電動膨張弁 ６ 第一液側三方弁 ７ 第二液側三方弁 ８ 第一室内熱交換器 ９ 第二室内熱交換器 １２ 第一ガス側三方弁 １３ 第二ガス側三方弁 １４ 第一大口径電磁弁 １５ 第二大口径電磁弁 １６ 第一電磁弁 １７ 第二電磁弁 １８ 吐出管 １９ バイパス管 ２０ 冷媒分岐点 1 Compressor 2 Four-way valve 3 Outdoor heat exchanger 4 First electric expansion valve 5 Second electric expansion valve 6 First liquid side three-way valve 7 Second liquid side three-way valve 8 First indoor heat exchanger 9 Second indoor heat exchange Device 12 First gas side three-way valve 13 Second gas side three-way valve 14 First large diameter solenoid valve 15 Second large diameter solenoid valve 16 First solenoid valve 17 Second solenoid valve 18 Discharge pipe 19 Bypass pipe 20 Refrigerant branch point
Claims (1)
記室外熱交換器より分岐した一方に、第一電動膨張弁
と、第一液側三方弁、第一室内熱交換器と、第一ガス側
三方弁と、第一大口径電磁弁を設け、他方には、第二電
動膨張弁と、第二液側三方弁と、第二室内熱交換器と、
第二ガス側三方弁と、第二大口径電磁弁を順次連結し、
前記第一・第二ガス側三方弁と第一・第二大口径電磁弁
の間と圧縮機の吐出管とを結ぶバイパス管の途中に各々
第一・第二電磁弁を設けた多室形ヒートポンプ式空気調
和機。1. A compressor, a four-way valve, an outdoor heat exchanger, and a first electric expansion valve, a first liquid-side three-way valve, and a first indoor heat exchanger on one side branched from the outdoor heat exchanger. A first gas side three-way valve and a first large-diameter solenoid valve, and on the other hand, a second electric expansion valve, a second liquid side three-way valve, a second indoor heat exchanger,
The second gas side three-way valve and the second large diameter solenoid valve are sequentially connected,
A multi-chamber type in which first and second solenoid valves are provided in the middle of a bypass pipe connecting the first and second gas side three-way valves and the first and second large diameter solenoid valves and the discharge pipe of the compressor. Heat pump type air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3308747A JPH05141802A (en) | 1991-11-25 | 1991-11-25 | Multi-chamber type heat pump operated air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3308747A JPH05141802A (en) | 1991-11-25 | 1991-11-25 | Multi-chamber type heat pump operated air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05141802A true JPH05141802A (en) | 1993-06-08 |
Family
ID=17984806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3308747A Pending JPH05141802A (en) | 1991-11-25 | 1991-11-25 | Multi-chamber type heat pump operated air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05141802A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100480702B1 (en) * | 2002-06-05 | 2005-04-06 | 엘지전자 주식회사 | Multi-type air conditioner for cooling/heating the same time |
| KR100743703B1 (en) * | 2001-09-03 | 2007-07-30 | 주식회사 엘지이아이 | Heat pump type multiple air conditioner |
| WO2008100086A1 (en) * | 2007-02-13 | 2008-08-21 | Lg Electronics Inc. | Air conditioning system and control method for the same |
-
1991
- 1991-11-25 JP JP3308747A patent/JPH05141802A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100743703B1 (en) * | 2001-09-03 | 2007-07-30 | 주식회사 엘지이아이 | Heat pump type multiple air conditioner |
| KR100480702B1 (en) * | 2002-06-05 | 2005-04-06 | 엘지전자 주식회사 | Multi-type air conditioner for cooling/heating the same time |
| WO2008100086A1 (en) * | 2007-02-13 | 2008-08-21 | Lg Electronics Inc. | Air conditioning system and control method for the same |
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