JPH08313069A - Air conditioning equipment - Google Patents
Air conditioning equipmentInfo
- Publication number
- JPH08313069A JPH08313069A JP7121587A JP12158795A JPH08313069A JP H08313069 A JPH08313069 A JP H08313069A JP 7121587 A JP7121587 A JP 7121587A JP 12158795 A JP12158795 A JP 12158795A JP H08313069 A JPH08313069 A JP H08313069A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- heat exchanger
- electromagnetic valve
- air conditioner
- refrigerant
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空気調和機に係わり、
より詳細には、インバータにより回転数を可変できる圧
縮機の運転周波数の変化に対応して、冷媒循環量を変化
させるようにした冷凍サイクルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner,
More specifically, the present invention relates to a refrigeration cycle in which the refrigerant circulation amount is changed in response to changes in the operating frequency of a compressor whose rotation speed can be changed by an inverter.
【０００２】[0002]
【従来の技術】従来の空気調和機は、例えば図３で示す
冷凍サイクルのように、インバータにより回転数を可変
できる圧縮機１，四方弁２，室外熱交換器３，減圧器
４，二方弁５，室内熱交換器６，三方弁７等を順次配管
接続して冷媒を循環し、設定温度と室内温度との差異に
より前記圧縮機１の運転周波数を変化させてなる構成で
あった。前記構成により、例えば、空気調和する室内の
温度を設定温度に保ため、前記圧縮機１の運転周波数を
所定の回転数より低くしたような場合、同回転数の変化
に対応して冷媒循環量を変化させない冷凍サイクルであ
ったことから、充分な過熱度が得られない状態でオーバ
チャージ気味となり、エネルギ消費効率が悪化して消費
電力が増加してしまうという問題を有していた。2. Description of the Related Art A conventional air conditioner has a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, a decompressor 4, and a two-way compressor whose rotation speed can be varied by an inverter, as in the refrigeration cycle shown in FIG. The valve 5, the indoor heat exchanger 6, the three-way valve 7 and the like are sequentially connected by piping to circulate the refrigerant, and the operating frequency of the compressor 1 is changed according to the difference between the set temperature and the indoor temperature. With the above configuration, for example, when the operating frequency of the compressor 1 is set lower than a predetermined number of revolutions in order to keep the temperature of the air-conditioned room at a set temperature, the refrigerant circulation amount corresponds to the change in the number of revolutions. Since the refrigeration cycle does not change the above, there is a problem that overcharging tends to occur when a sufficient degree of superheat is not obtained, energy consumption efficiency deteriorates, and power consumption increases.
【０００３】[0003]
【発明が解決しようとする課題】本発明においては、上
記の問題点に鑑み、インバータにより回転数を可変でき
る圧縮機の運転周波数の変化に対応して、冷媒循環量を
変化させることにより、エネルギ消費効率を向上させ、
消費電力を低減できる空気調和機を提供することを目的
とする。In the present invention, in view of the above problems, the refrigerant circulation amount is changed in accordance with the change of the operating frequency of the compressor whose rotation speed can be changed by the inverter, thereby changing the energy consumption. Improve consumption efficiency,
An object is to provide an air conditioner that can reduce power consumption.
【０００４】[0004]
【課題を解決するための手段】上記問題点を解決するた
め、インバータにより回転数を可変できる圧縮機，四方
弁，室外熱交換器，減圧器および室内熱交換器等を順次
配管接続して冷媒を循環し、設定温度と室内温度との差
異により前記圧縮機の運転周波数を変化させてなる空気
調和機において、前記室外熱交換器および前記室内熱交
換器間に前記減圧器をパイパスするレシーバタンクを備
えた側路を設け、同側路の前記レシーバタンク前後に冷
媒流路を開閉する第一電磁弁および第二電磁弁を設けた
ことを特徴とする。また、冷房運転の際、前記圧縮機が
所定の回転数以上の時、前記第一電磁弁を開とし、前記
第二電磁弁を閉としたことを特徴とする。また、冷房運
転の際、前記圧縮機が所定の回転数以下の時、前記第一
電磁弁を閉とし、前記第二電磁弁を開としたことを特徴
とする。また、暖房運転の際、前記圧縮機が所定の回転
数以上の時、前記第一電磁弁を閉とし、前記第二電磁弁
を開としたことを特徴とする。更に、暖房運転の際、前
記圧縮機が所定の回転数以下の時、前記第一電磁弁を開
とし、前記第二電磁弁を閉としたことを特徴とする。[Means for Solving the Problems] To solve the above-mentioned problems, a refrigerant in which a compressor whose number of revolutions can be varied by an inverter, a four-way valve, an outdoor heat exchanger, a pressure reducer, an indoor heat exchanger, etc. are sequentially connected by piping In the air conditioner in which the operating frequency of the compressor is changed by the difference between the set temperature and the indoor temperature, a receiver tank that bypasses the decompressor between the outdoor heat exchanger and the indoor heat exchanger. Is provided, and a first solenoid valve and a second solenoid valve for opening and closing the refrigerant passage are provided in front of and behind the receiver tank of the same side passage. Further, during the cooling operation, the first electromagnetic valve is opened and the second electromagnetic valve is closed when the compressor has a predetermined rotation speed or more. Further, during the cooling operation, the first electromagnetic valve is closed and the second electromagnetic valve is opened when the compressor has a predetermined rotation speed or less. Further, during the heating operation, the first electromagnetic valve is closed and the second electromagnetic valve is opened when the compressor has a predetermined rotation speed or more. Further, during the heating operation, the first electromagnetic valve is opened and the second electromagnetic valve is closed when the compressor has a predetermined rotational speed or less.
【０００５】[0005]
【作用】上記構造により、インバータにより回転数を可
変できる圧縮機の回転数の変化に対応して、冷媒循環量
を変化できるようにしたので、エネルギ消費効率を向上
させて消費電力を低減できる空気調和機となる。With the above structure, the refrigerant circulation amount can be changed in response to the change in the rotation speed of the compressor whose rotation speed can be changed by the inverter, so that the energy consumption efficiency can be improved and the power consumption can be reduced. Become a harmony machine.
【０００６】[0006]
【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。図１において、１はインバータにより回転
数を可変できる圧縮機，２は四方弁，３は室外熱交換
器，４は減圧器，５は二方弁，６は室内熱交換器，７は
三方弁，８は前記減圧器４をバイパスする側路に設けた
レシーバタンク10の一側に冷媒回路を開閉するために設
けた第一電磁弁，９は前記レシーバタンク10の他側に冷
媒回路を開閉するために設けた第二電磁弁で、これらは
順次配管接続され冷媒を循環するようにして冷凍サイク
ルを形成した構成となっている。前記構成で、冷房運転
の際、図２で示すように、例えば周波数が30Hz以上で高
い場合には、前記第二電磁弁９が閉となり、前記第一電
磁弁８が開となって、図１で示す実線の矢印のように、
前記圧縮機１から出た冷媒は前記四方弁２に流入し、同
四方弁２から前記室外熱交換器３に流入して熱交換し、
同室外熱交換器３から前記減圧器４に流入して減圧し、
前記第二電磁弁９が閉であるため前記レシーバタンク10
に流入することなく、前記減圧器４から前記二方弁５を
経て前記室内熱交換器６に流入して熱交換し、同室内熱
交換器６から前記三方弁７を経て前記四方弁２に流入
し、同四方弁２から前記圧縮機１に循環する冷凍サイク
ルとなる。前記冷凍サイクルにより、冷媒は前記レシー
バタンク10を備えた側路に流入することがないため、同
レシーバタンク10内の状態はガス状であって、その循環
量は通常どおりとなって通常の冷房運転の状態となる。
また、前記構成で、冷房運転の際、図２で示すように、
例えば周波数が30Hz以下で低い場合には、前記第二電磁
弁９が開となり、前記第一電磁弁８が閉となって、図１
で示す実線の矢印のように、前記圧縮機１から出た冷媒
は前記四方弁２に流入し、同四方弁２から前記室外熱交
換器３に流入して熱交換し、同室外熱交換器３から前記
減圧器４に流入して減圧すると同時に、前記第二電磁弁
９が開であるため前記レシーバタンク10に流入して液状
化することによって、前記二方弁５を経て前記室内熱交
換器６に流入する冷媒の循環量が減少した状態で、同室
内熱交換器６から前記三方弁７を経て前記四方弁２に流
入し、同四方弁２から前記圧縮機１に循環する冷凍サイ
クルとなる。前記冷凍サイクルにより、冷媒は前記レシ
ーバタンク10内で液状化し、前記室内熱交換器６に流入
する冷媒の循環量を減少させ、エネルギ消費効率を向上
させて消費電力を低減できるようにした冷房運転の状態
となる。また、前記構成で、暖房運転の際、図２で示す
ように、例えば周波数が30Hz以上で高い場合には、前記
第一電磁弁８が閉となり、前記第二電磁弁９が開となっ
て、図１で示す破線の矢印のように、前記圧縮機１から
出た冷媒は前記四方弁２に流入し、同四方弁２から前記
三方弁７を経て前記室内熱交換器６に流入し、同室内熱
交換器６から前記二方弁５を経て前記減圧器４に流入し
て減圧し、前記第一電磁弁８が閉であるため前記レシー
バタンク10に流入することなく、前記減圧器４から前記
室外熱交換器３に流入して熱交換し、同室外熱交換器３
から前記四方弁２に流入し、同四方弁２から前記圧縮機
１に循環する冷凍サイクルとなる。前記冷凍サイクルに
より、冷媒は前記レシーバタンク10を備えた側路に流入
することがないため、同レシーバタンク10内の状態はガ
ス状であって、その循環量は通常どおりとなって通常の
暖房運転の状態となる。また、前記構成で、暖房運転の
際、図２で示すように、例えば周波数が30Hz以下で低い
場合には、前記第一電磁弁８が開となり、前記第二電磁
弁９が閉となって、図１で示す破線の矢印のように、前
記圧縮機１から出た冷媒は前記四方弁２に流入し、同四
方弁２から前記三方弁７を経て前記室内熱交換器６に流
入し、同室内熱交換器６から前記二方弁５を経て前記減
圧器４に流入して減圧すると同時に、前記第一電磁弁８
が開であるため前記レシーバタンク10に流入して液状化
することによって、前記室外熱交換器３に流入する冷媒
の循環量が減少した状態で、同室外熱交換器３から前記
四方弁２に流入し、同四方弁２から前記圧縮機１に循環
するサイクルとなる。前記冷凍サイクルにより、冷媒は
前記レシーバタンク10内で液状化し、前記室外熱交換器
３に流入する冷媒の循環量を減少させ、エネルギ消費効
率を向上させて消費電力を低減できるようにした暖房運
転の状態となる。Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, 1 is a compressor whose rotation speed can be varied by an inverter, 2 is a four-way valve, 3 is an outdoor heat exchanger, 4 is a pressure reducer, 5 is a two-way valve, 6 is an indoor heat exchanger, and 7 is a three-way valve. , 8 is a first solenoid valve provided to open and close the refrigerant circuit on one side of the receiver tank 10 which is provided in a bypass bypassing the pressure reducer 4, and 9 is an opening and closing of the refrigerant circuit on the other side of the receiver tank 10. The second solenoid valve is provided for this purpose, and these are connected in sequence to circulate the refrigerant to form a refrigeration cycle. With the above configuration, during cooling operation, as shown in FIG. 2, for example, when the frequency is high at 30 Hz or higher, the second solenoid valve 9 is closed and the first solenoid valve 8 is opened. As indicated by the solid arrow 1
The refrigerant discharged from the compressor 1 flows into the four-way valve 2, and from the four-way valve 2 flows into the outdoor heat exchanger 3 to exchange heat,
From the outdoor heat exchanger 3 flows into the pressure reducer 4 to reduce the pressure,
Since the second solenoid valve 9 is closed, the receiver tank 10
Flow into the indoor heat exchanger 6 from the decompressor 4 via the two-way valve 5 to exchange heat, and then from the indoor heat exchanger 6 to the four-way valve 2 via the three-way valve 7. A refrigeration cycle in which the gas flows in and circulates from the four-way valve 2 to the compressor 1 is achieved. Due to the refrigeration cycle, the refrigerant does not flow into the side path provided with the receiver tank 10, so that the state inside the receiver tank 10 is in a gaseous state, and the circulation amount thereof is the same as usual. It will be in a driving state.
Further, in the above configuration, during the cooling operation, as shown in FIG.
For example, when the frequency is low at 30 Hz or lower, the second solenoid valve 9 is opened and the first solenoid valve 8 is closed.
As indicated by the solid line arrow, the refrigerant discharged from the compressor 1 flows into the four-way valve 2, flows from the four-way valve 2 into the outdoor heat exchanger 3, and exchanges heat with the outdoor heat exchanger. 3 flows into the pressure reducer 4 to reduce the pressure, and at the same time, the second electromagnetic valve 9 is open, so that the second solenoid valve 9 flows into the receiver tank 10 and liquefies, thereby passing through the two-way valve 5 and the indoor heat exchange Refrigerating cycle in which the circulation amount of the refrigerant flowing into the cooler 6 is reduced, flows from the indoor heat exchanger 6 through the three-way valve 7 into the four-way valve 2, and circulates from the four-way valve 2 to the compressor 1. Becomes Due to the refrigeration cycle, the refrigerant is liquefied in the receiver tank 10, the circulation amount of the refrigerant flowing into the indoor heat exchanger 6 is reduced, the energy consumption efficiency is improved, and the power consumption can be reduced. It becomes the state of. Further, in the above configuration, during heating operation, as shown in FIG. 2, for example, when the frequency is high at 30 Hz or higher, the first solenoid valve 8 is closed and the second solenoid valve 9 is opened. As indicated by the broken line arrow in FIG. 1, the refrigerant discharged from the compressor 1 flows into the four-way valve 2, flows from the four-way valve 2 into the indoor heat exchanger 6 through the three-way valve 7, The indoor heat exchanger 6 flows through the two-way valve 5 into the pressure reducer 4 to reduce the pressure, and since the first electromagnetic valve 8 is closed, the pressure reducer 4 does not flow into the receiver tank 10. Flows into the outdoor heat exchanger 3 to exchange heat, and the outdoor heat exchanger 3
From the four-way valve 2 to the compressor 1 to circulate to the compressor 1. Due to the refrigeration cycle, the refrigerant does not flow into the side path provided with the receiver tank 10, so that the state inside the receiver tank 10 is in a gaseous state, and the circulation amount thereof is the same as usual. It will be in a driving state. Further, in the above configuration, during heating operation, as shown in FIG. 2, when the frequency is low at 30 Hz or lower, for example, the first electromagnetic valve 8 is opened and the second electromagnetic valve 9 is closed. As indicated by the broken line arrow in FIG. 1, the refrigerant discharged from the compressor 1 flows into the four-way valve 2, flows from the four-way valve 2 into the indoor heat exchanger 6 through the three-way valve 7, At the same time as flowing from the indoor heat exchanger 6 through the two-way valve 5 into the pressure reducer 4 to reduce the pressure, the first solenoid valve 8
Since it is open, it flows into the receiver tank 10 and is liquefied to reduce the circulation amount of the refrigerant flowing into the outdoor heat exchanger 3 from the outdoor heat exchanger 3 to the four-way valve 2. It is a cycle of flowing in and circulating from the four-way valve 2 to the compressor 1. Due to the refrigeration cycle, the refrigerant is liquefied in the receiver tank 10, the circulation amount of the refrigerant flowing into the outdoor heat exchanger 3 is reduced, the energy consumption efficiency is improved, and the heating operation capable of reducing the power consumption is performed. It becomes the state of.
【０００７】以上の構成により、空気調和する室内の温
度を設定温度に保ために前記圧縮機１の運転周波数を所
定の回転数より低くした場合、同回転数の変化に対応し
て冷媒循環量を減少させることによって、エネルギ消費
効率を向上させて消費電力を低減できる冷凍サイクルを
有した空気調和機となる。With the above configuration, when the operating frequency of the compressor 1 is set lower than a predetermined number of revolutions in order to keep the temperature of the air-conditioned room at the set temperature, the refrigerant circulation amount corresponds to the change in the number of revolutions. The air conditioner has a refrigeration cycle capable of improving energy consumption efficiency and reducing power consumption by reducing
【０００８】[0008]
【発明の効果】以上のように本発明によると、インバー
タにより回転数を可変できる圧縮機の回転数の変化に対
応して、冷媒循環量を変化できるようにした冷凍サイク
ルを構成したので、エネルギ消費効率を向上させて消費
電力を低減できる空気調和機となる。As described above, according to the present invention, the refrigerating cycle is configured so that the refrigerant circulation amount can be changed in response to the change in the rotation speed of the compressor whose rotation speed can be changed by the inverter. The air conditioner can improve power consumption efficiency and reduce power consumption.
【図１】本発明による空気調和機の冷凍サイクルを示す
説明図である。FIG. 1 is an explanatory view showing a refrigeration cycle of an air conditioner according to the present invention.
【図２】本発明による空気調和機の冷凍サイクルにおけ
る冷媒の状態とその循環量を示す図である。FIG. 2 is a diagram showing a state of a refrigerant and a circulation amount thereof in a refrigeration cycle of an air conditioner according to the present invention.
【図３】従来例による空気調和機の冷凍サイクルを示す
説明図である。FIG. 3 is an explanatory diagram showing a refrigeration cycle of an air conditioner according to a conventional example.
１ 圧縮機 ２ 四方弁 ３ 室外熱交換器 ４ 減圧器 ５ 二方弁 ６ 室内熱交換器 ７ 三方弁 ８ 第一電磁弁 ９ 第二電磁弁 10 レシーバタンク 1 compressor 2 four-way valve 3 outdoor heat exchanger 4 pressure reducer 5 two-way valve 6 indoor heat exchanger 7 three-way valve 8 first solenoid valve 9 second solenoid valve 10 receiver tank
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ２５Ｂ 13/00 Ｆ２５Ｂ 13/00 Ｍ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display area F25B 13/00 F25B 13/00 M
Claims (5)
縮機，四方弁，室外熱交換器，減圧器および室内熱交換
器等を順次配管接続して冷媒を循環し、設定温度と室内
温度との差異により前記圧縮機の運転周波数を変化させ
てなる空気調和機において、前記室外熱交換器および前
記室内熱交換器間に前記減圧器をパイパスするレシーバ
タンクを備えた側路を設け、同側路の前記レシーバタン
ク前後に冷媒流路を開閉する第一電磁弁および第二電磁
弁を設けたことを特徴とする空気調和機。1. A difference between a set temperature and a room temperature, in which a compressor, a four-way valve, an outdoor heat exchanger, a decompressor, an indoor heat exchanger, etc., whose rotation speed can be varied by an inverter is connected in sequence to circulate a refrigerant. According to the air conditioner that changes the operating frequency of the compressor, by providing a side passage with a receiver tank that bypasses the pressure reducer between the outdoor heat exchanger and the indoor heat exchanger, An air conditioner characterized in that a first electromagnetic valve and a second electromagnetic valve for opening and closing a refrigerant passage are provided in front of and behind the receiver tank.
数以上の時、前記第一電磁弁を開とし、前記第二電磁弁
を閉としたことを特徴とする請求項１記載の空気調和
機。2. The air conditioner according to claim 1, wherein the first electromagnetic valve is opened and the second electromagnetic valve is closed when the compressor has a predetermined rotation speed or more during cooling operation. Air conditioner.
数以下の時、前記第一電磁弁を閉とし、前記第二電磁弁
を開としたことを特徴とする請求項１記載の空気調和
機。3. The first electromagnetic valve is closed and the second electromagnetic valve is opened when the compressor has a rotational speed equal to or lower than a predetermined speed during a cooling operation. Air conditioner.
数以上の時、前記第一電磁弁を閉とし、前記第二電磁弁
を開としたことを特徴とする請求項１記載の空気調和
機。4. The heating apparatus according to claim 1, wherein the first electromagnetic valve is closed and the second electromagnetic valve is opened when the compressor has a predetermined rotation speed or more during heating operation. Air conditioner.
数以下の時、前記第一電磁弁を開とし、前記第二電磁弁
を閉としたことを特徴とする請求項１記載の空気調和
機。5. The heating device according to claim 1, wherein the first electromagnetic valve is opened and the second electromagnetic valve is closed when the compressor has a rotational speed equal to or lower than a predetermined value during heating operation. Air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7121587A JPH08313069A (en) | 1995-05-19 | 1995-05-19 | Air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7121587A JPH08313069A (en) | 1995-05-19 | 1995-05-19 | Air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08313069A true JPH08313069A (en) | 1996-11-29 |
Family
ID=14814943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7121587A Pending JPH08313069A (en) | 1995-05-19 | 1995-05-19 | Air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08313069A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014119153A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| JP2014119145A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| JP2014119150A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| JP2014119154A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| CN106482379A (en) * | 2016-10-25 | 2017-03-08 | 重庆美的通用制冷设备有限公司 | Air-conditioning and its refrigeration system |
| CN106524606A (en) * | 2016-10-12 | 2017-03-22 | 重庆美的通用制冷设备有限公司 | Adjustment device, system and method for refrigerant circulation quantity of air conditioner |
| CN106766324A (en) * | 2016-11-14 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Refrigeration system and the refrigerating plant with it |
| CN107923680A (en) * | 2015-08-28 | 2018-04-17 | 三菱电机株式会社 | Refrigerating circulatory device |
-
1995
- 1995-05-19 JP JP7121587A patent/JPH08313069A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014119153A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| JP2014119145A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| JP2014119150A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| JP2014119154A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
| CN107923680A (en) * | 2015-08-28 | 2018-04-17 | 三菱电机株式会社 | Refrigerating circulatory device |
| CN107923680B (en) * | 2015-08-28 | 2020-06-30 | 三菱电机株式会社 | Refrigeration cycle device |
| CN106524606A (en) * | 2016-10-12 | 2017-03-22 | 重庆美的通用制冷设备有限公司 | Adjustment device, system and method for refrigerant circulation quantity of air conditioner |
| CN106482379A (en) * | 2016-10-25 | 2017-03-08 | 重庆美的通用制冷设备有限公司 | Air-conditioning and its refrigeration system |
| WO2018076934A1 (en) * | 2016-10-25 | 2018-05-03 | 重庆美的通用制冷设备有限公司 | Air conditioner and refrigeration system thereof |
| CN106766324A (en) * | 2016-11-14 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Refrigeration system and the refrigerating plant with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101865555B (en) | Multi-split air-conditioner capable of simultaneously refrigerating and heating | |
| JPH0331666A (en) | Heat pump type air conditioner | |
| JPH01285725A (en) | Air-cooled cooling device | |
| JP3884591B2 (en) | Air conditioner | |
| JPH08313069A (en) | Air conditioning equipment | |
| JP2522361B2 (en) | Air conditioner | |
| CN108240715A (en) | A kind of efficient gas compensating type heat pump air conditioning system | |
| JPH08303877A (en) | Air conditioner | |
| JPH06257874A (en) | Heat pump type air-conditioning machine | |
| JPH10205932A (en) | Air conditioner | |
| JP3268967B2 (en) | Air conditioner | |
| JP7306582B2 (en) | refrigeration cycle equipment | |
| JP2001174089A (en) | Multiple-chamber-type air-conditioner | |
| JP2653749B2 (en) | Heat pump package | |
| JP3321275B2 (en) | External air cooling combined air conditioning system | |
| JPH0510618A (en) | Multi-chamber air conditioner | |
| JPH01302074A (en) | Multi-room type air conditioner | |
| JP2000213822A (en) | Air conditioner | |
| JP2001280766A (en) | Air conditioner | |
| JPH0694324A (en) | Cooling/heating coexisting type engine-driven heat pump system | |
| JPH11294834A (en) | Multi-room air conditioner provided with air cleaner | |
| JPH08320172A (en) | Air conditioner | |
| JPS60233471A (en) | Heat pump type air conditioner | |
| JPH03286945A (en) | Engine driven type air-conditioner | |
| JPS6383563A (en) | Multi-chamber type air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |