JPH1137587A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH1137587A JPH1137587A JP9194558A JP19455897A JPH1137587A JP H1137587 A JPH1137587 A JP H1137587A JP 9194558 A JP9194558 A JP 9194558A JP 19455897 A JP19455897 A JP 19455897A JP H1137587 A JPH1137587 A JP H1137587A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- valve
- solenoid valve
- refrigerant flow
- closed
- 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
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
- F25B2313/02331—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during cooling
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
- F25B2313/02344—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements during heating
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
- F25B2313/02533—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements during heating
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0254—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series arrangements
- F25B2313/02541—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series arrangements during cooling
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷房、暖房兼用の
ヒートポンプ式空気調和機に係わり、とくに、代替冷媒
を使用するものの効率を向上させたものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump type air conditioner for both cooling and heating, and more particularly to a heat pump type air conditioner using an alternative refrigerant which has improved efficiency.
【０００２】[0002]
【従来の技術】従来、図３の冷凍サイクルの系統図に示
すように、圧縮機１の吐出口から吐出される冷媒を、四
方弁２、室外熱交換器３、減圧器４、室内熱交換器５、
四方弁２を経て圧縮機１の吸込口に循環するヒートポン
プ式冷凍サイクルを備える空気調和機は、室内熱交換器
５と室外熱交換器３の冷媒流路を例えば２流路設け、冷
房時、暖房時共に同じ、直列流路または並列流路として
動作させていた。即ち、平成７年度日本冷凍協会講演論
文集（７−１０−３１，１１−１，２，東京）に掲載の
「ＨＦＣ混合冷媒を用いたルームエアコンの性能評価」
に示されるように、熱交換器のパス数（流路数）を減少
すると、伝熱性能の向上により凝縮器としての性能は上
昇するが、圧力損失が増大するため、蒸発器として使用
した場合はサイクル効率の低下を招くため、通常、上述
のように、凝縮器としての伝熱性能と、蒸発器としての
圧力損失をバランスさせて熱交換器のパス数（流路数）
を決定していた。しかし、この方法では、凝縮器または
蒸発器として最も効率の良い状態で使用しておらず、よ
り高い効率の向上が求められていた。2. Description of the Related Art Conventionally, as shown in a system diagram of a refrigeration cycle in FIG. 3, a refrigerant discharged from a discharge port of a compressor 1 is supplied to a four-way valve 2, an outdoor heat exchanger 3, a pressure reducer 4, and an indoor heat exchanger. Vessel 5,
An air conditioner including a heat pump refrigeration cycle that circulates through the four-way valve 2 to the suction port of the compressor 1 is provided with, for example, two refrigerant flow paths for the indoor heat exchanger 5 and the outdoor heat exchanger 3, and for cooling. At the time of heating, they were operated as the same serial flow path or parallel flow path. That is, "Performance evaluation of room air conditioner using HFC mixed refrigerant" published in the 1995 Refrigeration Society of Japan Lecture Papers (7-10-31, 11-1, 2, Tokyo).
As shown in the figure, when the number of passes (number of channels) of the heat exchanger is reduced, the performance as a condenser increases due to the improvement of the heat transfer performance, but the pressure loss increases. As described above, the heat transfer performance of the condenser and the pressure loss of the evaporator are usually balanced to reduce the number of passes (the number of passages) of the heat exchanger.
Was decided. However, in this method, the condenser or the evaporator is not used in the most efficient state, and a higher efficiency is required.
【０００３】[0003]
【発明が解決しようとする課題】本発明は以上述べた問
題点を解決し、凝縮器としても、蒸発器としても最も効
率の良い状態で使用可能なヒートポンプ式の空気調和機
を提供することを目的としている。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides a heat pump type air conditioner which can be used in the most efficient state as a condenser or an evaporator. The purpose is.
【０００４】[0004]
【課題を解決するための手段】本発明は上述の課題を解
決するため、圧縮機の吐出口から吐出される冷媒を、四
方弁、２つの冷媒流路を有する室外熱交換器、減圧器、
２つの冷媒流路を有する室内熱交換器、四方弁を経て圧
縮機の吸込口に循環するヒートポンプ式冷凍サイクルを
備える空気調和機において、前記四方弁と、前記各熱交
換器の一方の冷媒流路との間に、第１の電磁弁を各々介
装し、各熱交換器の他側の冷媒流路の合流点から前記減
圧器との間に第２の電磁弁を各々介装し、前記各第１の
電磁弁と各一側一方の冷媒流路との間から前記減圧器と
各第２の電磁弁との間に、第３の電磁弁を各々連結し、
冷房および、暖房時に、凝縮器側となる熱交換器の冷媒
流路を直列接続、蒸発器側の熱交換器の冷媒流路を並列
接続となるように、各電磁弁を制御するようにした空気
調和機とした。According to the present invention, there is provided an outdoor heat exchanger having a four-way valve, two refrigerant passages, a pressure reducer, and a refrigerant discharged from a discharge port of a compressor.
In an air conditioner having an indoor heat exchanger having two refrigerant flow paths and a heat pump refrigeration cycle circulating to a suction port of a compressor via a four-way valve, the four-way valve and one refrigerant flow of each of the heat exchangers are provided. The first electromagnetic valves are interposed between the first and second passages, respectively, and the second electromagnetic valves are respectively interposed between the heat exchangers and the pressure reducing device from the junction of the refrigerant flow paths on the other side of each heat exchanger. Third solenoid valves are respectively connected between the decompressor and each second solenoid valve from between each of the first solenoid valves and one of the refrigerant passages on one side,
During cooling and heating, each solenoid valve is controlled such that the refrigerant flow paths of the heat exchanger on the condenser side are connected in series and the refrigerant flow paths of the heat exchanger on the evaporator side are connected in parallel. An air conditioner.
【０００５】また、冷房時には、室内熱交換器側の第１
の電磁弁と第２の電磁弁を開放し、第３の電磁弁を閉塞
する一方、室外熱交換器側の第１の電磁弁と第２の電磁
弁を閉塞し、第３の電磁弁を開放するようにし、また、
暖房時には、室内熱交換器側の第１の電磁弁と第２の電
磁弁を閉塞し、第３の電磁弁を開放する一方、室外熱交
換器側の第１の電磁弁と第２の電磁弁を開放し、第３の
電磁弁を閉塞するようにした。During cooling, the first heat exchanger on the indoor heat exchanger side
The second electromagnetic valve and the second electromagnetic valve are opened and the third electromagnetic valve is closed, while the first electromagnetic valve and the second electromagnetic valve on the outdoor heat exchanger side are closed, and the third electromagnetic valve is closed. To be open, and
During heating, the first electromagnetic valve and the second electromagnetic valve on the indoor heat exchanger side are closed and the third electromagnetic valve is opened, while the first electromagnetic valve and the second electromagnetic valve on the outdoor heat exchanger side are opened. The valve was opened and the third solenoid valve was closed.
【０００６】[0006]
【発明の実施の形態】以上のように、本発明の空気調和
機においては、四方弁と、前記各熱交換器の一方の冷媒
流路との間に、第１の電磁弁を各々介装し、各熱交換器
の他側の冷媒流路の合流点から前記減圧器との間に第２
の電磁弁を各々介装し、前記各第１の電磁弁と各一側一
方の冷媒流路との間から前記減圧器と各第２の電磁弁と
の間に、第３の電磁弁を各々連結し、冷房時には、室内
熱交換器側の第１の電磁弁と第２の電磁弁を開放し、第
３の電磁弁を閉塞する一方、室外熱交換器側の第１の電
磁弁と第２の電磁弁を閉塞し、第３の電磁弁を開放する
ようにし、また、暖房時には、室内熱交換器側の第１の
電磁弁と第２の電磁弁を閉塞し、第３の電磁弁を開放す
る一方、室外熱交換器側の第１の電磁弁と第２の電磁弁
を開放し、第３の電磁弁を閉塞するようにしたので、冷
房および、暖房時に、凝縮器側となる熱交換器の冷媒流
路を直列接続、蒸発器側の熱交換器の冷媒流路を並列接
続となるように、各電磁弁を制御することができ、冷
房、暖房に係わらず、効率の良い空気調和器を提供する
ことができる。As described above, in the air conditioner of the present invention, the first solenoid valves are interposed between the four-way valve and one of the refrigerant passages of each of the heat exchangers. And a second space between the condensing point of the refrigerant flow paths on the other side of each heat exchanger and the decompressor.
And a third solenoid valve is provided between the pressure reducer and each second solenoid valve from between each of the first solenoid valves and one of the refrigerant passages on one side. The first electromagnetic valve and the second electromagnetic valve on the indoor heat exchanger side are opened and the third electromagnetic valve is closed during cooling, while the first electromagnetic valve on the outdoor heat exchanger side is closed. The second solenoid valve is closed and the third solenoid valve is opened. During heating, the first solenoid valve and the second solenoid valve on the indoor heat exchanger side are closed, and the third solenoid valve is closed. While opening the valve, the first solenoid valve and the second solenoid valve on the side of the outdoor heat exchanger were opened and the third solenoid valve was closed, so that during cooling and heating, the first solenoid valve and the second solenoid valve were closed. Each solenoid valve can be controlled so that the refrigerant flow paths of the heat exchanger are connected in series, and the refrigerant flow paths of the heat exchanger on the evaporator side are connected in parallel, regardless of cooling or heating. It is possible to provide an efficient air conditioner.
【０００７】[0007]
【実施例】以下、図面に基づいて本発明による空気調和
機を詳細に説明する。図１は本発明による空気調和機の
一実施例を示す冷凍サイクルの系統図、図２は同電磁弁
の動作を示す動作表である。図において、図３と同一機
能は同一記号を使用しており、従来の技術の項で説明し
たので、説明を省略する。図において、３ａ、３ｂは室
外熱交換器３の冷媒管の挿通される冷媒流路、５ａ、５
ｂは室内熱交換器５の冷媒管の挿通される冷媒流路であ
る。６は二方弁で、室外機と室内機との冷媒管の接続に
使用される。７は三方弁で、二方弁６と同様に室外機と
室内機との冷媒管の接続に使用される他、冷媒の追加等
に使用される。１１、２１は第１の電磁弁で、冷媒流路
３ｂと四方弁２の間、または、冷媒流路５ｂと四方弁２
（三方弁７）の間に各々介装され、各々の冷媒流を開閉
するように制御される。１２、２２は第２の電磁弁で、
減圧器４と室外熱交換器３の冷媒流路３ａ、３ｂの合流
点Ａとの間、減圧器４（二方弁６）と室内熱交換器５の
冷媒流路５ａ、５ｂの合流点Ｂとの間に各々介装され、
各々の冷媒流を開閉するよう制御される。１３、２３は
第３の電磁弁で、前記冷媒流路３ｂと第１の電磁弁１１
との間の点Ｃと減圧器４と第２の電磁弁１２との間の点
Ｅ間、冷媒流路５ｂと第１の電磁弁２１との間の点Ｄと
減圧器４と第２の電磁弁２２との間の点Ｆ間に各々連結
され、各々の冷媒流を開閉するよう制御される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air conditioner according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a system diagram of a refrigeration cycle showing an embodiment of an air conditioner according to the present invention, and FIG. 2 is an operation table showing the operation of the solenoid valve. In the figure, the same functions as those in FIG. 3 use the same symbols and have been described in the section of the related art, so that the description will be omitted. In the figure, reference numerals 3a and 3b denote refrigerant passages through which the refrigerant tubes of the outdoor heat exchanger 3 are inserted.
“b” is a refrigerant passage through which the refrigerant tube of the indoor heat exchanger 5 is inserted. Reference numeral 6 denotes a two-way valve which is used to connect refrigerant pipes between the outdoor unit and the indoor unit. Reference numeral 7 denotes a three-way valve, which is used for connecting refrigerant pipes between the outdoor unit and the indoor unit similarly to the two-way valve 6, and is used for adding refrigerant. Reference numerals 11 and 21 denote first solenoid valves which are provided between the refrigerant flow path 3b and the four-way valve 2 or between the refrigerant flow path 5b and the four-way valve 2
(Three-way valves 7) are interposed between each other, and are controlled so as to open and close each refrigerant flow. 12 and 22 are second solenoid valves,
Between the decompressor 4 and the junction A of the refrigerant flow paths 3a and 3b of the outdoor heat exchanger 3, the junction B of the decompressor 4 (two-way valve 6) and the refrigerant flow paths 5a and 5b of the indoor heat exchanger 5 Between each other,
Each refrigerant flow is controlled to open and close. Reference numerals 13 and 23 denote third solenoid valves, which are the refrigerant passage 3b and the first solenoid valve 11 respectively.
C, a point E between the pressure reducer 4 and the second solenoid valve 12, a point D between the refrigerant flow path 5b and the first solenoid valve 21, the pressure reducer 4 and the second Each is connected between the points F between the solenoid valve 22 and is controlled to open and close each refrigerant flow.
【０００８】以上の構成において、つぎにその動作を説
明する。図２は前記各電磁弁の動作を示す動作表であ
る。図に示すように、冷房時は、室外側の第１の電磁弁
１１、第２の電磁弁１２は閉塞され、第３の電磁弁１３
が開放されるので、冷媒流路３ａと冷媒流路３ｂが直列
に接続され、冷媒は図の実線で示す矢印の方向に流れ
る。また、室内側の第１の電磁弁２１、第２の電磁弁２
２は開放され、第３の電磁弁２３が閉塞されるので、冷
媒流路５ａと冷媒流路５ｂが並列に接続され、冷媒は図
の実線で示す矢印の方向に流れる。Next, the operation of the above configuration will be described. FIG. 2 is an operation table showing the operation of each solenoid valve. As shown in the figure, at the time of cooling, the first electromagnetic valve 11 and the second electromagnetic valve 12 on the outdoor side are closed, and the third electromagnetic valve 13 is closed.
Is opened, the refrigerant flow path 3a and the refrigerant flow path 3b are connected in series, and the refrigerant flows in the direction of the arrow shown by the solid line in the figure. Also, the first electromagnetic valve 21 and the second electromagnetic valve 2 on the indoor side
2 is opened and the third solenoid valve 23 is closed, so that the refrigerant flow path 5a and the refrigerant flow path 5b are connected in parallel, and the refrigerant flows in the direction of the arrow indicated by the solid line in the figure.
【０００９】暖房時は、室外側の第１の電磁弁１１、第
２の電磁弁１２は開放され、第３の電磁弁１３が閉塞さ
れるので、冷媒流路３ａと冷媒流路３ｂが並列に接続さ
れ、冷媒は図の点線で示す矢印の方向に流れる。また、
室内側の第１の電磁弁２１、第２の電磁弁２２は閉塞さ
れ、第３の電磁弁２３が開放されるので、冷媒流路５ａ
と冷媒流路５ｂが直列に接続され、冷媒は図の実線で示
す矢印の方向に流れる。During heating, the first electromagnetic valve 11 and the second electromagnetic valve 12 on the outdoor side are opened and the third electromagnetic valve 13 is closed, so that the refrigerant flow path 3a and the refrigerant flow path 3b are arranged in parallel. And the refrigerant flows in the direction of the arrow indicated by the dotted line in the figure. Also,
Since the first electromagnetic valve 21 and the second electromagnetic valve 22 on the indoor side are closed and the third electromagnetic valve 23 is opened, the refrigerant flow path 5a
And the refrigerant flow path 5b are connected in series, and the refrigerant flows in the direction of the arrow shown by the solid line in the figure.
【００１０】従って、室外熱交換器３および室内熱交換
器５は、凝縮器として働く時は、その冷媒流路を直列に
接続することにより、熱交換器のパス数（流路数）を減
少して、伝熱性能の向上させ、蒸発器として働くとき
は、その冷媒流路を並列に接続することにより、熱交換
器のパス数（流路数）を増加して、圧力損失を減少させ
るので、冷房時、暖房時共、最も効率のよい空気調和器
の冷凍サイクルを構成することができる。Therefore, when the outdoor heat exchanger 3 and the indoor heat exchanger 5 function as a condenser, their refrigerant flow paths are connected in series to reduce the number of heat exchanger paths (the number of flow paths). In order to improve the heat transfer performance and to work as an evaporator, the number of passes (the number of passes) of the heat exchanger is increased and the pressure loss is reduced by connecting the refrigerant passages in parallel. Therefore, the most efficient refrigeration cycle of the air conditioner can be configured for both cooling and heating.
【００１１】[0011]
【発明の効果】以上説明したように、本発明による空気
調和機によれば、四方弁と、前記各熱交換器の一方の冷
媒流路との間に、第１の電磁弁を各々介装し、各熱交換
器の他側の冷媒流路の合流点から前記減圧器との間に第
２の電磁弁を各々介装し、前記各第１の電磁弁と各一側
一方の冷媒流路との間から前記減圧器と各第２の電磁弁
との間に、第３の電磁弁を各々連結し、冷房時には、室
内熱交換器側の第１の電磁弁と第２の電磁弁を開放し、
第３の電磁弁を閉塞する一方、室外熱交換器側の第１の
電磁弁と第２の電磁弁を閉塞し、第３の電磁弁を開放す
るようにし、また、暖房時には、室内熱交換器側の第１
の電磁弁と第２の電磁弁を閉塞し、第３の電磁弁を開放
する一方、室外熱交換器側の第１の電磁弁と第２の電磁
弁を開放し、第３の電磁弁を閉塞するようにしたので、
冷房および、暖房時に、凝縮器側となる熱交換器の冷媒
流路を直列接続、蒸発器側の熱交換器の冷媒流路を並列
接続となるように、各電磁弁を制御することができ、冷
房、暖房に係わらず、効率の良い空気調和器を提供する
ことができる。As described above, according to the air conditioner of the present invention, the first solenoid valves are interposed between the four-way valve and one of the refrigerant passages of each of the heat exchangers. Then, a second solenoid valve is interposed between the condensing point of the refrigerant flow path on the other side of each heat exchanger and the decompressor, and the first solenoid valve and the refrigerant flow on one side of each one are provided. A third solenoid valve is connected between the pressure reducer and each of the second solenoid valves from between the first solenoid valve and the first solenoid valve on the indoor heat exchanger side during cooling. Release
While closing the third electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve on the outdoor heat exchanger side are closed, and the third electromagnetic valve is opened. Container side first
And the third electromagnetic valve is closed and the third electromagnetic valve is opened, while the first electromagnetic valve and the second electromagnetic valve on the outdoor heat exchanger side are opened, and the third electromagnetic valve is opened. Because I chose to block,
During cooling and heating, each solenoid valve can be controlled such that the refrigerant flow paths of the heat exchanger on the condenser side are connected in series and the refrigerant flow paths of the heat exchanger on the evaporator side are connected in parallel. An efficient air conditioner can be provided irrespective of cooling and heating.
【図１】本発明による空気調和機の一実施例を示す冷媒
流路図である。FIG. 1 is a refrigerant flow diagram showing one embodiment of an air conditioner according to the present invention.
【図２】本発明による空気調和機の各電磁弁の動作を示
す動作図である。FIG. 2 is an operation diagram showing the operation of each solenoid valve of the air conditioner according to the present invention.
【図３】従来の空気調和機を示す冷媒流路図である。FIG. 3 is a refrigerant flow diagram showing a conventional air conditioner.
１ 圧縮機 ２ 四方弁 ３ 室外熱交換器 ３ａ、３ｂ 冷媒流路 ４ 減圧器 ５ 室内熱交換器 ５ａ、５ｂ 冷媒流路 ６ 二方弁 ７ 三方弁 １１、２１ 第１の電磁弁 １２、２２ 第２の電磁弁 １３、２３ 第３の電磁弁 DESCRIPTION OF SYMBOLS 1 Compressor 2 Four-way valve 3 Outdoor heat exchanger 3a, 3b Refrigerant flow path 4 Decompressor 5 Indoor heat exchanger 5a, 5b Refrigerant flow path 6 Two-way valve 7 Three-way valve 11, 21 First electromagnetic valve 12, 22 First Second solenoid valve 13, 23 Third solenoid valve
Claims (2)
四方弁、２つの冷媒流路を有する室外熱交換器、減圧
器、２つの冷媒流路を有する室内熱交換器、四方弁を経
て圧縮機の吸込口に循環するヒートポンプ式冷凍サイク
ルを備える空気調和機において、 前記四方弁と、前記各熱交換器の一方の冷媒流路との間
に、第１の電磁弁を各々介装し、各熱交換器の他側の冷
媒流路の合流点から前記減圧器との間に第２の電磁弁を
各々介装し、前記各第１の電磁弁と各一側一方の冷媒流
路との間から前記減圧器と各第２の電磁弁との間に、第
３の電磁弁を各々連結し、冷房および、暖房時に、凝縮
器側となる熱交換器の冷媒流路を直列接続、蒸発器側の
熱交換器の冷媒流路を並列接続となるように、各電磁弁
を制御するようにしたことを特徴とする空気調和機。1. A refrigerant discharged from a discharge port of a compressor,
Air conditioning including a four-way valve, an outdoor heat exchanger having two refrigerant flow paths, a decompressor, an indoor heat exchanger having two refrigerant flow paths, and a heat pump refrigeration cycle circulating through a four-way valve to a suction port of a compressor. In the machine, a first solenoid valve is interposed between the four-way valve and one of the refrigerant flow paths of each of the heat exchangers, from a junction of the refrigerant flow paths on the other side of each of the heat exchangers. A second solenoid valve is interposed between the pressure reducer and each of the first solenoid valves and one of the refrigerant passages on one side. In the meantime, the third solenoid valves are connected to each other, and during cooling and heating, the refrigerant flow paths of the heat exchanger on the condenser side are connected in series, and the refrigerant flow paths of the heat exchanger on the evaporator side are connected in parallel. An air conditioner characterized by controlling each solenoid valve.
磁弁と第２の電磁弁を開放し、第３の電磁弁を閉塞する
一方、室外熱交換器側の第１の電磁弁と第２の電磁弁を
閉塞し、第３の電磁弁を開放するようにし、また、暖房
時には、室内熱交換器側の第１の電磁弁と第２の電磁弁
を閉塞し、第３の電磁弁を開放する一方、室外熱交換器
側の第１の電磁弁と第２の電磁弁を開放し、第３の電磁
弁を閉塞するようにしたことを特徴とする請求項１記載
の空気調和機。2. During cooling, the first solenoid valve and the second solenoid valve on the indoor heat exchanger side are opened and the third solenoid valve is closed, while the first solenoid valve on the outdoor heat exchanger side is closed. And the second solenoid valve are closed, and the third solenoid valve is opened. During heating, the first and second solenoid valves on the indoor heat exchanger side are closed, and the third solenoid valve is closed. 2. The air according to claim 1, wherein the electromagnetic valve is opened, the first electromagnetic valve and the second electromagnetic valve on the outdoor heat exchanger side are opened, and the third electromagnetic valve is closed. Harmony machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9194558A JPH1137587A (en) | 1997-07-18 | 1997-07-18 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9194558A JPH1137587A (en) | 1997-07-18 | 1997-07-18 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1137587A true JPH1137587A (en) | 1999-02-12 |
Family
ID=16326537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9194558A Pending JPH1137587A (en) | 1997-07-18 | 1997-07-18 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1137587A (en) |
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1997
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| KR101233209B1 (en) | 2010-11-18 | 2013-02-15 | 엘지전자 주식회사 | Heat pump |
| US9140474B2 (en) | 2010-11-18 | 2015-09-22 | Lg Electronics Inc. | Air conditioner |
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| WO2020143540A1 (en) * | 2019-01-10 | 2020-07-16 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner |
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