JPH08285413A - Air conditioner and method for charging refrigerant for air conditioner - Google Patents
Air conditioner and method for charging refrigerant for air conditionerInfo
- Publication number
- JPH08285413A JPH08285413A JP9246995A JP9246995A JPH08285413A JP H08285413 A JPH08285413 A JP H08285413A JP 9246995 A JP9246995 A JP 9246995A JP 9246995 A JP9246995 A JP 9246995A JP H08285413 A JPH08285413 A JP H08285413A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- bypass pipe
- air conditioner
- heat exchanger
- service valve
- 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
- 239000003507 refrigerant Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000010721 machine oil Substances 0.000 description 4
- 230000006837 decompression Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、室内空気を加熱ある
いは冷却するための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 heating or cooling indoor air.
【0002】[0002]
【従来の技術】室内空気を加熱、あるいは冷却する空気
調和機の例は、例えば、特公昭58ー49779号公報
に記載されたものがある。このような空気調和機は、一
般的に、圧縮機と室外熱交換器と減圧装置と室内熱交換
器とを冷媒配管で接続した冷凍サイクルを備えたもので
ある。そして、このような空気調和機においては、室外
機に圧縮機などを配置した室外機と、室内熱交換器を配
置した室内機とで主に空気調和機が構成されるいわゆる
分離型空気調和機も一般的に使用されている。2. Description of the Related Art An example of an air conditioner for heating or cooling indoor air is disclosed in Japanese Patent Publication No. 58-49779. Such an air conditioner generally includes a refrigeration cycle in which a compressor, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected by a refrigerant pipe. Further, in such an air conditioner, a so-called separation type air conditioner in which an air conditioner mainly includes an outdoor unit in which a compressor or the like is arranged in an outdoor unit and an indoor unit in which an indoor heat exchanger is arranged Is also commonly used.
【0003】[0003]
【発明が解決しようとする課題】前述した空気調和機で
は、室内機と室外機とが設置された後、ユニット間配管
で接続されるため、予め冷媒や冷凍機油が室外機に充填
(チャージ)されているものであった。この充填は、室
外機の接続部分であるサービスバルブ2カ所を閉じてお
き、減圧装置と室外熱交換器とをつなぐ冷媒配管につな
がれたチャージパイプ100(図1参照)から行われ、
作業が終了すると、チャージパイプの先端を封止する作
業、すなわちピンチした(つぶした)後ロー付けをして
いた。従って、封止する作業が不充分であると、冷媒な
どがもれるおそれがあった。このため、作業が容易では
ない。In the above-mentioned air conditioner, after the indoor unit and the outdoor unit are installed, they are connected by the piping between the units, so that the outdoor unit is preliminarily filled with the refrigerant or the refrigerating machine oil (charge). It has been done. This filling is performed from the charge pipe 100 (see FIG. 1) that is connected to the refrigerant pipe that connects the pressure reducing device and the outdoor heat exchanger with the two service valves that are the connection parts of the outdoor unit closed.
When the work was completed, the work of sealing the tip of the charge pipe, that is, pinching (crushing) and then brazing was performed. Therefore, if the work of sealing is insufficient, there is a possibility that the refrigerant may leak. Therefore, the work is not easy.
【0004】この発明は、冷媒チャージ作業を容易にす
ると共に、冷媒がもれにくい空気調和機を提供するもの
である。The present invention provides an air conditioner that facilitates the refrigerant charging operation and prevents the refrigerant from leaking.
【0005】[0005]
【課題を解決するための手段】前記課題を解決するため
に、第1の発明は、圧縮機と室外熱交換器と減圧装置と
室内熱交換器とを冷媒配管で接続すると共に、前記減圧
装置と前記室内熱交換器とつなぐ流路にサービスバルブ
を備えた空気調和機において、前記減圧装置をバイパス
するバイパス管を備え、このバイパス管を冷媒チャージ
後閉塞したものである。In order to solve the above-mentioned problems, a first invention is to connect a compressor, an outdoor heat exchanger, a pressure reducing device and an indoor heat exchanger with a refrigerant pipe, and to reduce the pressure reducing device. An air conditioner provided with a service valve in a flow path connecting to the indoor heat exchanger is provided with a bypass pipe bypassing the pressure reducing device, and the bypass pipe is closed after charging the refrigerant.
【0006】第2の発明は、圧縮機と室外熱交換器と減
圧装置と室内熱交換器とを冷媒配管で接続すると共に、
前記減圧装置と前記室内熱交換器とつなぐ流路に第1サ
ービスバルブを備え、前記室内熱交換器と圧縮機とをつ
なぐ流路に第2サービスバルブを備え、前第2サービス
バルブと圧縮機と室外熱交換器と減圧装置と減圧装置と
第1サービスバルブとを室外機に配置した空気調和機に
おいて、前記減圧装置をバイパスするバイパス管を備
え、前記第1サービスバルブから冷媒をチャージした
後、前記バイパス管をつぶしたものである。A second aspect of the invention is to connect the compressor, the outdoor heat exchanger, the pressure reducing device and the indoor heat exchanger with a refrigerant pipe, and
A first service valve is provided in a flow path connecting the decompression device and the indoor heat exchanger, a second service valve is provided in a flow path connecting the indoor heat exchanger and the compressor, and a second front service valve and a compressor are provided. In an air conditioner in which an outdoor heat exchanger, a pressure reducing device, a pressure reducing device, and a first service valve are arranged in an outdoor unit, a bypass pipe that bypasses the pressure reducing device is provided, and after charging a refrigerant from the first service valve. The bypass pipe is crushed.
【0007】第3の発明は、圧縮機と室外熱交換器と減
圧装置と室内熱交換器とを冷媒配管で接続すると共に、
前記減圧装置と前記室内熱交換器とつなぐ流路にサービ
スバルブを備えた空気調和機において、前記減圧装置を
バイパスするバイパス管を備え、前記サービスバルブか
ら冷媒をチャージした後、前記バイパス管をつぶしたも
のである。A third aspect of the invention is to connect the compressor, the outdoor heat exchanger, the pressure reducing device and the indoor heat exchanger with a refrigerant pipe, and
In an air conditioner having a service valve in a flow path connecting the pressure reducing device and the indoor heat exchanger, a bypass pipe that bypasses the pressure reducing device is provided, and after charging the refrigerant from the service valve, the bypass pipe is crushed. It is a thing.
【0008】[0008]
【作用】第1、第3の発明によれば、第1のサービスバ
ルブから冷媒をチャージすると、冷媒は抵抗となる減圧
装置をバイパスするバイパス管を通って速やかに室外熱
交換器に溜まる。そして、バイパス管の流路を、例えば
つぶすなどして閉塞すれば、空気調和機の運転が可能と
なる 第2の発明によれば、第1のサービスバルブからと冷媒
をチャージすると、冷媒は抵抗となる減圧装置をバイパ
スするバイパス管を通って速やかに室外熱交換器に溜ま
る。そして、冷媒チャージ後、バイパス管がつぶされる
ので、このバイパス管には冷媒は通過しない。もし仮に
通過したとしても、量はわずかで、この通過する冷媒は
内部の冷媒回路中であるので、外部にもれるおそれも、
全くない。According to the first and third aspects of the present invention, when the refrigerant is charged from the first service valve, the refrigerant is quickly accumulated in the outdoor heat exchanger through the bypass pipe bypassing the pressure reducing device which becomes a resistance. Then, if the flow path of the bypass pipe is closed by, for example, crushing, the air conditioner can be operated. According to the second invention, when the refrigerant is charged from the first service valve, the refrigerant becomes resistant. It quickly accumulates in the outdoor heat exchanger through a bypass pipe that bypasses the decompression device. Since the bypass pipe is crushed after the refrigerant is charged, the refrigerant does not pass through the bypass pipe. Even if it passes, the amount is small, and since the refrigerant that passes through is in the internal refrigerant circuit, it may leak to the outside.
Not at all.
【0009】[0009]
【実施例】この発明の実施例を図面に基づき説明する。
1は分離型の空気調和機で、主に室外機2と、ユニット
間配管3と、室内機4とで構成されるものである。Embodiments of the present invention will be described with reference to the drawings.
Reference numeral 1 is a separation type air conditioner, which is mainly composed of an outdoor unit 2, an inter-unit pipe 3, and an indoor unit 4.
【0010】室外機2には、冷媒を圧縮するための圧縮
機5、マフラ6、冷暖切換用の四方弁7、室外熱交換器
8、キャピラリーチューブ(減圧装置)9、9A、スト
レーナ10、小型のサービスバルブ(第1サービスバル
ブ)11、大型のサービスバルブ(第2サービスバル
ブ)12、マフラ13、アキュムレータ14等が配置さ
れている。15、15Aは室外熱交換器8とキャピラリ
ーチューブ9、9Aとをつなぐ冷媒管、16はキャピラ
リーチューブ9とストレーナ10とをつなぐ冷媒管、1
6Aはキャピラリーチューブ9Aと冷媒管16とをつな
ぐ冷媒管、17は冷媒管15と冷媒管16をつなぐバイ
パス管で、キャピラリーチューブ9をバイパスするもの
である。前記バイパス管17は4分の1インチ(2分)
の銅管を、冷媒管15、15Aは16分の5インチ(2
分5里)の銅管を用いている。尚、他の冷媒管は図示す
るが、符号は付さない。また、室外機2に室外送風機を
備えているが、図示しない。The outdoor unit 2 includes a compressor 5 for compressing a refrigerant, a muffler 6, a four-way valve 7 for switching between heating and cooling, an outdoor heat exchanger 8, a capillary tube (pressure reducing device) 9, 9A, a strainer 10, and a small size. A service valve (first service valve) 11, a large service valve (second service valve) 12, a muffler 13, an accumulator 14 and the like are arranged. Reference numerals 15 and 15A are refrigerant pipes connecting the outdoor heat exchanger 8 and the capillary tubes 9 and 9A, 16 is a refrigerant pipe connecting the capillary tube 9 and the strainer 10, 1
6A is a refrigerant pipe that connects the capillary tube 9A and the refrigerant pipe 16, and 17 is a bypass pipe that connects the refrigerant pipe 15 and the refrigerant pipe 16, and bypasses the capillary tube 9. The bypass pipe 17 is a quarter inch (2 minutes)
Refrigerant tubes 15 and 15A are 5/16 inch (2
It uses a copper tube of 5 minutes. The other refrigerant pipes are shown, but the reference numerals are not attached. Further, although the outdoor unit 2 is provided with an outdoor blower, it is not shown.
【0011】ユニット間配管2は、細管2Aとこの管よ
りも太い太管2Bとで構成されている。The inter-unit pipe 2 is composed of a thin pipe 2A and a thick pipe 2B thicker than this pipe.
【0012】室内機4には、室内熱交換器20、接続部
21、22が配置されている。尚、室内機4に室内送風
機を備えているが、図示しない。An indoor heat exchanger 20 and connecting portions 21 and 22 are arranged in the indoor unit 4. Although the indoor unit 4 includes an indoor blower, it is not shown.
【0013】このように構成された空気調和機では、次
に説明するように冷媒がチャージされる。まず最初に室
内機2、室外機4が組み立てられる。この状態では、バ
イパス管17はつぶされてはいない。室外機2と室内機
4が接続されていない状態においては、室外機2への冷
媒のチャージは、サービスバルブ12を閉じ、サービス
バルブ11を開いて、このサービスバルブ11から行
う。、このとき冷媒だけでなく、必要な冷凍機油もチャ
ージされる。このとき冷媒及び冷凍機油は、抵抗となる
となるキャピラリーチューブ9をバイパスしているの
で、速やかに室外熱交換器8にチャージされる。必要量
の冷媒及び冷凍機油がチャージされると、サービスバル
ブ11が閉じられ、その後、バイパス管17が、治具
(油圧を利用して押しつぶす治具)でつぶされる。バイ
パス管17は、強い力でつぶされるので、完全に冷媒が
流れないようにつぶされる。もし、仮に冷媒が流れたと
しても、ごくわずかであると考えられ、この場合の割合
もきわめて小さいと考えられる。これは、キャピラリー
チューブ9の抵抗よりもつぶされたバイパス管17はき
わめて大きな抵抗になるからで、キャピラリーチューブ
9、9Aに流れる冷媒ほど流れないと考えられるからで
ある。もし、仮に、前記バイパス管に冷媒が流れるよう
なことがあっても、これは冷媒回路内のことであって、
外部に冷媒がももれることはない。しかも、従来は冷媒
チャージ後チャージパイプを封止する作業(この作業
は、冷媒がもれないようにする作業のため、慎重さと手
間がかかるものである)を行う必要があったが、このよ
うな手間のかかる作業を必要としないので、特にロー付
け作業を行わずに済むことによって、冷媒チャージをす
る作業を容易にすることができる。また、バイパス管は
外部と通じていないので、このバイパス管から冷媒がも
れるおそれは全くなく、従来行っていたリーク検査も不
要とすることができる。冷媒がチャージされ、バイパス
管がつぶされると、冷媒チャージ作業は終了する。In the air conditioner thus constructed, the refrigerant is charged as described below. First, the indoor unit 2 and the outdoor unit 4 are assembled. In this state, the bypass pipe 17 is not crushed. When the outdoor unit 2 and the indoor unit 4 are not connected, the refrigerant is charged into the outdoor unit 2 from the service valve 11 by closing the service valve 12 and opening the service valve 11. At this time, not only the refrigerant but also the necessary refrigerating machine oil is charged. At this time, the refrigerant and the refrigerating machine oil bypass the capillary tube 9 which becomes a resistance, so that the outdoor heat exchanger 8 is quickly charged. When the required amount of refrigerant and refrigerating machine oil are charged, the service valve 11 is closed, and then the bypass pipe 17 is crushed by a jig (a jig crushing by using hydraulic pressure). Since the bypass pipe 17 is crushed with a strong force, it is crushed so that the refrigerant does not flow completely. Even if the refrigerant flows, it is considered to be very small, and the ratio in this case is also considered to be extremely small. This is because the bypass pipe 17 crushed more than the resistance of the capillary tube 9 has an extremely large resistance, and it is considered that the refrigerant does not flow as much as the refrigerant flowing in the capillary tubes 9 and 9A. If refrigerant flows through the bypass pipe, this means that it is in the refrigerant circuit.
There is no leakage of refrigerant to the outside. Moreover, in the past, it was necessary to perform the work of sealing the charge pipe after charging the refrigerant (this work is careful and time-consuming because it prevents the refrigerant from leaking). Since no labor-intensive work is required, the work for charging the refrigerant can be facilitated by omitting the brazing work. Further, since the bypass pipe is not connected to the outside, there is no possibility that the refrigerant leaks from the bypass pipe, and the leak inspection which has been conventionally performed can be eliminated. When the refrigerant is charged and the bypass pipe is crushed, the refrigerant charging operation ends.
【0014】その後、室内機4及び室外機2が所定の場
所に配置された後、ユニット間配管2で接続され、両バ
ルブ12、13が開かれると、空気調和機の設置が終了
し、運転が可能となる。そして、冷房運転時は実線矢印
のように、暖房運転時は点線矢印の方向に冷媒が流れる
ことによって(図1参照)、室内を冷房、あるいは暖房
することができるようになっている。After that, after the indoor unit 4 and the outdoor unit 2 are arranged at predetermined places, they are connected by the inter-unit piping 2 and both valves 12 and 13 are opened, the installation of the air conditioner is completed and the operation is completed. Is possible. The interior of the room can be cooled or heated by flowing the refrigerant in the direction of the dotted arrow during the cooling operation and in the direction of the dotted arrow during the heating operation (see FIG. 1).
【0015】尚、この実施例では、分離型の空気調和機
に本願発明を適用した例で説明したが、一体型の空気調
和機に適用しても構わない。また、冷蔵庫等のような冷
凍装置に適用しても構わない。更に、チャージパイプ1
00は実施例の空気調和機では実際に備えていないもの
の、発明が解決しようとする課題の欄で説明するために
余分に点線で示している。また、バイパス管9の流路を
閉鎖する作業は、つぶすのが最適と考えるが、冷媒チャ
ージ時のみ開かれる開閉弁を設けてつぶさないようにす
ることも可能である。この場合は、空気調和機を数年間
使用した後冷媒がもれるなどして冷媒の追加チャージを
行わなければならない場合にも、このバイパス管を利用
できるので特に有効である。In this embodiment, an example in which the present invention is applied to a separate type air conditioner has been described, but it may be applied to an integrated type air conditioner. Further, it may be applied to a refrigerating device such as a refrigerator. Furthermore, charge pipe 1
Although 00 is not actually provided in the air conditioner of the embodiment, it is indicated by an extra dotted line in order to explain in the section of the problem to be solved by the invention. Further, it is considered that the work of closing the flow path of the bypass pipe 9 is best done by crushing, but it is also possible to provide an on-off valve that is opened only when the refrigerant is charged so as not to crush it. In this case, the bypass pipe can be used even when the refrigerant has to be recharged after the air conditioner has been used for several years and the refrigerant leaks, which is particularly effective.
【0016】[0016]
【発明の効果】第1、第3の発明によれば、サービスバ
ルブから冷媒をチャージすると、冷媒を速やかに室外熱
交換器に溜めることができるので、冷媒チャージ作業を
容易にすることができる。しかも、冷媒チャージ後の作
業として、外部と密閉する作業を必要としないので、冷
媒のもれを極力抑えることができる。According to the first and third aspects of the present invention, when the refrigerant is charged from the service valve, the refrigerant can be quickly accumulated in the outdoor heat exchanger, so that the refrigerant charging operation can be facilitated. Moreover, since the work after the charging of the refrigerant is not required to be sealed with the outside, the leakage of the refrigerant can be suppressed as much as possible.
【0017】第2の発明によれば、第1のサービスバル
ブからと冷媒をチャージすると、冷媒は抵抗となる減圧
装置をバイパスするバイパス管を通って速やかに室外熱
交換器に溜まり、この冷媒チャージ後、バイパス管をつ
ぶすので、このバイパス管には冷媒は流れない。もし仮
に流れたとしても、その量はごくわずかで、しかもこの
通過する冷媒は内部の冷媒回路中であるので、外部にも
れるおそれも全くない。According to the second aspect of the present invention, when the refrigerant is charged from the first service valve, the refrigerant is quickly accumulated in the outdoor heat exchanger through the bypass pipe bypassing the decompression device serving as a resistance, and the refrigerant is charged. After that, since the bypass pipe is crushed, the refrigerant does not flow into this bypass pipe. Even if it flows, the amount thereof is very small, and since the refrigerant passing therethrough is in the internal refrigerant circuit, there is no possibility of leakage to the outside.
【0018】したがって、冷媒チャージの作業を容易に
行えると共に、外部に冷媒のもれることを極力抑えるこ
とができる。Therefore, the work of charging the refrigerant can be performed easily, and the leakage of the refrigerant to the outside can be suppressed as much as possible.
【図1】この発明の空気調和機の冷媒回路図である。FIG. 1 is a refrigerant circuit diagram of an air conditioner of the present invention.
【図2】同空気調和機の要部を示す側面図である。FIG. 2 is a side view showing a main part of the air conditioner.
【図3】図2の要部を別角度から見た側面図である。FIG. 3 is a side view of the main part of FIG. 2 viewed from another angle.
5 圧縮機 8 室外熱交換器 9、9A キャピラリーチューブ(減圧装置) 11 第1サービスバルブ 12 第2サービスバルブ 17 バイパス管 20 室内熱交換器 5 Compressor 8 Outdoor heat exchanger 9, 9A Capillary tube (pressure reducing device) 11 1st service valve 12 2nd service valve 17 Bypass pipe 20 Indoor heat exchanger
Claims (3)
熱交換器とを冷媒配管で接続すると共に、前記減圧装置
と前記室内熱交換器とつなぐ流路にサービスバルブを備
えた空気調和機において、前記減圧装置をバイパスする
バイパス管を備え、バイパス管を冷媒チャージ後に閉塞
したことを特徴とする空気調和機。1. An air conditioner in which a compressor, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected by a refrigerant pipe, and a service valve is provided in a flow path connecting the pressure reducing device and the indoor heat exchanger. An air conditioner comprising a bypass pipe bypassing the pressure reducing device, the bypass pipe being closed after charging the refrigerant.
熱交換器とを冷媒配管で接続すると共に、前記減圧装置
と前記室内熱交換器とつなぐ流路に第1サービスバルブ
を備え、前記室内熱交換器と圧縮機とをつなぐ流路に第
2サービスバルブを備え、前記第2サービスバルブと圧
縮機と室外熱交換器と減圧装置と減圧装置と第1サービ
スバルブとを室外機に配置した空気調和機において、前
記減圧装置をバイパスするバイパス管を備え、このバイ
パス管は冷媒チャージ後つぶしたことを特徴とする空気
調和機。2. A compressor, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected by a refrigerant pipe, and a first service valve is provided in a flow path connecting the pressure reducing device and the indoor heat exchanger, A second service valve is provided in a flow path connecting the indoor heat exchanger and the compressor, and the second service valve, the compressor, the outdoor heat exchanger, the pressure reducing device, the pressure reducing device, and the first service valve are used as the outdoor unit. The arranged air conditioner is provided with a bypass pipe that bypasses the pressure reducing device, and the bypass pipe is crushed after charging the refrigerant.
熱交換器とを冷媒配管で接続すると共に、前記減圧装置
と前記室内熱交換器とつなぐ流路に冷媒配管とサービス
バルブを備えた空気調和機において、前記減圧装置をバ
イパスするバイパス管を備え、前記サービスバルブから
冷媒チャージを行い、この冷媒チャージ後前記バイパス
管をつぶしたことを特徴とする空気調和機の冷媒チャー
ジ方法。3. A compressor, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger are connected by a refrigerant pipe, and a refrigerant pipe and a service valve are provided in a flow path connecting the pressure reducing device and the indoor heat exchanger. In the air conditioner, a bypass pipe that bypasses the pressure reducing device is provided, refrigerant is charged from the service valve, and the bypass pipe is crushed after the refrigerant charge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9246995A JPH08285413A (en) | 1995-04-18 | 1995-04-18 | Air conditioner and method for charging refrigerant for air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9246995A JPH08285413A (en) | 1995-04-18 | 1995-04-18 | Air conditioner and method for charging refrigerant for air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08285413A true JPH08285413A (en) | 1996-11-01 |
Family
ID=14055202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9246995A Pending JPH08285413A (en) | 1995-04-18 | 1995-04-18 | Air conditioner and method for charging refrigerant for air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08285413A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2012120868A1 (en) * | 2011-03-07 | 2014-07-17 | 三菱電機株式会社 | Air conditioner |
CN109059370A (en) * | 2018-11-02 | 2018-12-21 | 奥克斯空调股份有限公司 | Air-conditioner outdoor unit cooling medium charging structure, method and air-conditioner outdoor unit |
CN114829845A (en) * | 2019-12-04 | 2022-07-29 | 伊莱克斯电器股份公司 | Air conditioner with fluid tank |
US11841148B2 (en) | 2017-12-13 | 2023-12-12 | Electrolux Appliances Aktiebolag | Window-type air conditioner |
US11879647B2 (en) | 2021-12-22 | 2024-01-23 | Electrolux Appliances Aktiebolag | Portable air conditioning unit window installation system |
US12152805B2 (en) | 2021-12-22 | 2024-11-26 | Electrolux Appliances Aktiebolag | Window air conditioning unit installation system |
-
1995
- 1995-04-18 JP JP9246995A patent/JPH08285413A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2012120868A1 (en) * | 2011-03-07 | 2014-07-17 | 三菱電機株式会社 | Air conditioner |
US9404681B2 (en) | 2011-03-07 | 2016-08-02 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
US11841148B2 (en) | 2017-12-13 | 2023-12-12 | Electrolux Appliances Aktiebolag | Window-type air conditioner |
CN109059370A (en) * | 2018-11-02 | 2018-12-21 | 奥克斯空调股份有限公司 | Air-conditioner outdoor unit cooling medium charging structure, method and air-conditioner outdoor unit |
CN114829845A (en) * | 2019-12-04 | 2022-07-29 | 伊莱克斯电器股份公司 | Air conditioner with fluid tank |
CN114829845B (en) * | 2019-12-04 | 2024-04-30 | 伊莱克斯电器股份公司 | Air conditioner with fluid tank |
US11879647B2 (en) | 2021-12-22 | 2024-01-23 | Electrolux Appliances Aktiebolag | Portable air conditioning unit window installation system |
US12152805B2 (en) | 2021-12-22 | 2024-11-26 | Electrolux Appliances Aktiebolag | Window air conditioning unit installation system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0331666A (en) | Heat pump type air conditioner | |
JPH04187954A (en) | Air conditioning system | |
JPH08285413A (en) | Air conditioner and method for charging refrigerant for air conditioner | |
JP5157580B2 (en) | Refrigeration equipment | |
JP2008537773A (en) | Refrigerant cycle with a three-way service valve for use with environmentally friendly refrigerants | |
US4227382A (en) | Split system air conditioner adapted to receive a water preheater | |
JPS5952344B2 (en) | air conditioner | |
KR100677265B1 (en) | Service valve assembly with serial dual port, air conditioner with serial dual port, and its removal method | |
JP3407866B2 (en) | Air conditioner | |
JP4747439B2 (en) | Multi-room air conditioner | |
CN216159405U (en) | Single-cooling air conditioning system with one-way valve | |
JPH04324075A (en) | Air conditioning apparatus | |
JP3376641B2 (en) | Air conditioner | |
JP2001241814A (en) | Air conditioner and refrigerant filling method | |
JP2512227B2 (en) | Air-cooled heat pump refrigeration cycle with reversible expansion valve | |
JP3842855B2 (en) | Air conditioner outdoor unit | |
JP3164627B2 (en) | Two-stage compression refrigeration cycle device | |
JPH04203776A (en) | Heat pump type air conditioner | |
CN113606828A (en) | Single-cooling air conditioning system with one-way valve and refrigerant filling method thereof | |
JPH06221620A (en) | Air conditioning device | |
JPH07293975A (en) | Air conditioner | |
JPH06337172A (en) | Heat pump type air-conditioning machine | |
CN107975959A (en) | A kind of multi-online air-conditioning system and control method | |
JPH05340625A (en) | Air conditioner | |
JP2000111188A (en) | Refrigerating cycle of air conditioner |