JPS58120062A - Multiple type heat pump system air conditioner - Google Patents
Multiple type heat pump system air conditionerInfo
- Publication number
- JPS58120062A JPS58120062A JP213282A JP213282A JPS58120062A JP S58120062 A JPS58120062 A JP S58120062A JP 213282 A JP213282 A JP 213282A JP 213282 A JP213282 A JP 213282A JP S58120062 A JPS58120062 A JP S58120062A
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- valve
- pressure
- heat pump
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はマルチ型ヒートポンプ式空気調和機のり、
冷媒制御に保蔵１台の室内ユニットに、複数台の室内ユ
ニットを接続した前記マルチ型ヒートポンプ式空気調和
機において、冷房時、室外ユニット内の圧縮機が停止し
た時、室内ユニット内を流れる冷媒の通過音を無くし、
圧縮機停止時における静音化を計ることを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a multi-type heat pump type air conditioner, and a multi-type heat pump type air conditioner in which a plurality of indoor units are connected to one indoor unit for storage in refrigerant control. , when the compressor in the outdoor unit stops, the noise of the refrigerant flowing in the indoor unit is eliminated,
The purpose is to reduce noise when the compressor is stopped.
従来、こうしたマルチ型のヒートポンプ式空気調和機は
、第１図に示す如く々っている。即ち、室外ユニット１
内に圧縮機２を設け、冷房時には圧縮された高温高圧の
冷媒が、四方弁３．室外熱交換器４を通り、逆止弁５を
通ってレシーバ−６に至るよう構成されている。さらに
、レシーバ−６より液冷媒が、源側三方弁７．１号機液
電磁弁８、接続管９、冷房用膨張弁１０に至り、ここで
減圧されて、１号機室内−ｚ＝２）１１ｈの室内熱交換
器１２、接続管１３．１号機ガス電磁弁１４、ガス側三
方弁１５、四方弁３、圧縮機２のサイクルとなるのであ
る。Conventionally, such multi-type heat pump type air conditioners have been developed as shown in FIG. That is, outdoor unit 1
A compressor 2 is provided inside the interior, and during cooling, compressed high temperature and high pressure refrigerant is passed through a four-way valve 3. It is configured to pass through an outdoor heat exchanger 4 and a check valve 5 to reach a receiver 6. Furthermore, the liquid refrigerant from the receiver 6 reaches the source side three-way valve 7, the unit 1 liquid solenoid valve 8, the connecting pipe 9, and the cooling expansion valve 10, where it is depressurized and enters the unit 1 interior -z = 2) 11h. The cycle includes the indoor heat exchanger 12, the connecting pipe 13, the No. 1 gas solenoid valve 14, the gas side three-way valve 15, the four-way valve 3, and the compressor 2.
ところがこの時、室内ユニ？ト１１において、冷房時の
設定温度が、設定温度より下って来ると圧縮機２は停止
するが、この停止した時、従来は１号機液電磁弁８を開
にしたま壕であるから、室外熱交換器４及びレシーバ６
に溜り込んでいた冷媒が、１号機液電磁弁８を通って膨
張弁１ｏを流れる為１号機室内ユニット１１内で、冷媒
通過音が大きくなり、耳障りとなる欠点を有していた。However, at this time, indoor uni? In step 11, when the set temperature during cooling falls below the set temperature, the compressor 2 stops, but when it stops, conventionally the No. 1 liquid solenoid valve 8 is left open, so it is not possible to open the unit outdoors. Heat exchanger 4 and receiver 6
Since the refrigerant accumulated in the unit flows through the No. 1 unit liquid solenoid valve 8 and the expansion valve 1o, the noise of refrigerant passing inside the No. 1 unit indoor unit 11 becomes louder and has the disadvantage of becoming harsh.
本発明は上記従来の欠点を解消するもので、以下におい
てその一実施例を第２図にもとづいて説明する。２１は
室外ユニット、２２ 、２３ 、２４は室内側に設けら
れた各々の室内ユニット、２５は圧縮機、２６は四方弁
、２７は室外熱交換器、２８は冷房時流通する逆止弁２
９と並列に設けられた暖房用膨張弁、３０はレシーバ−
１３１はサービスポートを付備した液側三方弁、３２は
１号機室内ユニット２２用の電磁弁、３３は逆止弁内蔵
の可逆電磁弁、これら電磁弁３２ 、３２’ 、３２’
は各々の室内ユニッ）２２．２３．２４用の電磁弁であ
って、対応した室内ユニットが停止すれば、それぞれ対
応した電磁弁は閉となる。又、電磁弁３３ 、３３’
、 ３３″ は各々の室内ユニット２２゜２３．２４
用のガス側となる可逆電磁弁であって、冷房時は、室内
ユニットからの蒸発冷媒が戻り、暖房時は、これら可逆
電磁弁３３ 、３３’、３３″に通電されることによっ
て開となる。３４はサービスポートを付備したガス側三
方弁、３５は均圧用キャピラリチューブ３６，３７．３
８に、一端が、−吸入管３９に接続された均圧三方弁、
４０は吐出管４１より、調整管４２、熱交換部４３に接
続された高圧圧力調整弁で、冷房時、暖房時共に吐出管
４１の圧力が所定圧力以上になると開口を始め、吸入管
３９にバイパスする。４４は均圧用電磁弁で、一端が、
レシーバ−３ｏと、各々の源側の電磁弁３２．３２’
、３２″間に接続され、他端が、均圧用キャピラリチュ
ーブ４６、及び吸入管３９側に接続されている。４７．
４７’ 、４７″は各々の室内ユニットに設けられた室
内熱交換器、４８ 、４８’ 、 ４８″は冷房用膨張
弁、４９．４９’ 、４９”は前記冷房用膨張弁と並列
に設けられ、暖房時、冷媒が通過する逆止弁、５０，６
０’ 、５１．６１’ 、６２．６２’は室外ユニット
２１と、各々の室内ユニット２２ 、２３ 。The present invention solves the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to FIG. 2. 21 is an outdoor unit; 22, 23, and 24 are indoor units provided on the indoor side; 25 is a compressor; 26 is a four-way valve; 27 is an outdoor heat exchanger; and 28 is a check valve 2 that flows during cooling.
A heating expansion valve is provided in parallel with 9, and 30 is a receiver.
131 is a liquid-side three-way valve equipped with a service port; 32 is a solenoid valve for the No. 1 indoor unit 22; 33 is a reversible solenoid valve with a built-in check valve; these solenoid valves 32, 32', 32'
are solenoid valves for each indoor unit (22, 23, 24), and when the corresponding indoor unit stops, the corresponding solenoid valve closes. Also, solenoid valves 33, 33'
, 33″ is each indoor unit 22°23.24
These reversible solenoid valves are on the gas side for air conditioning, and during cooling, the evaporated refrigerant from the indoor unit returns, and during heating, these reversible solenoid valves 33, 33', and 33'' are opened by being energized. 34 is a gas side three-way valve equipped with a service port, 35 is a pressure equalization capillary tube 36, 37.3
8, a pressure equalizing three-way valve connected at one end to the suction pipe 39;
Reference numeral 40 denotes a high-pressure pressure regulating valve connected from the discharge pipe 41 to the regulating pipe 42 and the heat exchange section 43. When the pressure in the discharge pipe 41 reaches a predetermined pressure or higher during both cooling and heating, the valve 40 opens and opens to the suction pipe 39. Bypass. 44 is a pressure equalizing solenoid valve, one end of which is
Receiver 3o and each source side solenoid valve 32,32'
, 32'', and the other end is connected to the pressure equalizing capillary tube 46 and the suction pipe 39 side. 47.
47', 47'' are indoor heat exchangers provided in each indoor unit, 48, 48', 48'' are cooling expansion valves, and 49', 49'' are provided in parallel with the cooling expansion valves. , check valve through which refrigerant passes during heating, 50,6
0', 51.61', and 62.62' are the outdoor unit 21 and the respective indoor units 22 and 23.
２４とを接続した接続管である。This is a connecting pipe that connects 24.
上記構成において、暖房時は、圧縮機２６、四方弁２６
、可逆電磁弁３３ 、３３’ 、 ３３″、室内熱交換
器４７ 、４７’ 、 ４７″、逆止弁４９．４９’
、４９“、源側電磁弁３２ 、３２’ 、 ３２″、レ
シーバ−３０、暖房用膨張弁２８、室外熱交換器２７、
四方弁２６、圧縮機２５のサイクルとなり、今、仮に、
３室を同時に暖房運転している過程において、３室同時
に、サーモスタット等によって運転が停止されると、四
方弁２６、可逆電磁弁３３ 、３３’ 、 ３３″、接
続管５０’ 、 ５１’ 、 ６２’、室内熱交換器４
７，４７’。In the above configuration, during heating, the compressor 26, the four-way valve 26
, reversible solenoid valve 33, 33', 33'', indoor heat exchanger 47, 47', 47'', check valve 49.49'
, 49", source side solenoid valve 32, 32', 32", receiver 30, heating expansion valve 28, outdoor heat exchanger 27,
The four-way valve 26 and the compressor 25 cycle, and now, temporarily,
In the process of heating three rooms at the same time, if the operation of all three rooms is stopped by a thermostat or the like at the same time, the four-way valve 26, the reversible solenoid valves 33, 33', 33'', and the connecting pipes 50', 51', 62 ', indoor heat exchanger 4
7,47'.
４７“、逆止弁４９ 、４９’ 、 ４９″を流れてい
た高温高圧冷媒は、源側電磁弁３２ 、３２” 、、３
２”が閉となり、牟卆−社、源側電磁弁３２ 、３２〆
ｓ ２ ＃方に流れることなく、可逆電磁弁３３ 、
３３’ 、 ３３″より流れて、ガス側三方弁３４側の
配管内を流れるから流速音は発生しない。47", the high temperature and high pressure refrigerant flowing through the check valves 49, 49', 49" is transferred to the source side solenoid valves 32, 32", 3
2" is closed, and the reversible solenoid valve 33, without flowing in the source side solenoid valve 32, 32, s2 # direction.
33', 33'' and flows through the piping on the gas side three-way valve 34 side, so no flow velocity sound is generated.
次に、冷房時は、圧縮機２５、四方弁２６、室外熱交換
器２７、逆止弁２９、レシーバ−３０、液側三方弁３１
、源側電磁弁３２ 、３２’ 、 ３２”、冷房用膨張
弁４８．４８’ 、４８″、室内熱交換器４７゜４７′
、４７“、ガス側の可逆電磁弁３３，３３′、３３′ｔ
ガス側三方弁３４、四方弁２６、圧縮機２６のサイクル
となり、今、仮に３室を同時に冷房運転している過程に
おいて、３室同時にサーモスタット等によって運転が停
止されると（圧縮機停止）、従来、開にしていた源側電
磁弁３２ 、３２’ 、 ３２”を閉にして、レシーバ
−３ｏに逆流するのを防止し、この逆流時の音をなくし
、レシーバ−３Ｑにある冷媒をバイパス用配管４６、均
圧用電磁弁４４、均圧用キャピラリチューブ４６を介し
て吸入管３９に戻すようにしているのである。又、室内
ユニット２２側のみ停止した時は、源側電磁弁３２は閉
とするから、低圧側となっている室内熱交換器４７内の
冷媒は、接続管６０′、可逆電磁弁３３の配管内を通し
て戻る。Next, during cooling, the compressor 25, four-way valve 26, outdoor heat exchanger 27, check valve 29, receiver 30, liquid side three-way valve 31
, source side solenoid valve 32, 32', 32'', cooling expansion valve 48.48', 48'', indoor heat exchanger 47°47'
, 47", gas side reversible solenoid valve 33, 33', 33't
This is a cycle of the gas side three-way valve 34, four-way valve 26, and compressor 26. Now, if three rooms are being cooled at the same time, and the operation of all three rooms is stopped by the thermostat or the like at the same time (the compressor is stopped), The source side solenoid valves 32, 32', 32'', which were conventionally open, are closed to prevent backflow to the receiver 3o, eliminate the sound caused by this backflow, and divert the refrigerant in the receiver 3Q to bypass. It returns to the suction pipe 39 via the piping 46, the pressure equalizing solenoid valve 44, and the pressure equalizing capillary tube 46.Furthermore, when only the indoor unit 22 side is stopped, the source side solenoid valve 32 is closed. The refrigerant in the indoor heat exchanger 47, which is on the low pressure side, returns through the connecting pipe 60' and the piping of the reversible solenoid valve 33.
このように本発明は、レシーバ−と、源側電磁弁との間
より、バイパス用配管、均圧用電磁弁、均圧用キャピラ
リチューブ、吸入管に至る冷媒回路を設けて、冷房時、
前記均圧用電磁弁を開にすると共に、源側電磁弁を閉に
して、圧縮機の停止時は、レシーバ−の冷媒で均圧、即
ち、室外ユニットのみで均圧するようにしたから、冷房
時、室内ユニットを流れる冷媒通過音の発生がなくなり
、仮に発生したとしても、ごく短時間にすることが出来
、耳障りもなくなるなどの効果を有するものである。In this way, the present invention provides a refrigerant circuit that extends from the receiver and the source side solenoid valve to the bypass pipe, the pressure equalization solenoid valve, the pressure equalization capillary tube, and the suction pipe, so that during cooling,
When the pressure equalization solenoid valve is opened and the source side solenoid valve is closed, when the compressor is stopped, the pressure is equalized by the refrigerant in the receiver, that is, the pressure is equalized only by the outdoor unit. This eliminates the generation of refrigerant passing noise through the indoor unit, and even if it does occur, it can be made for a very short period of time, and there is no harshness to the ears.
第１図は従来のマルチ型ヒートポンプ式空気調和機の冷
媒回路図、第２図は本発明の一実施例におけるマルチ型
ヒートポンプ式空気調和機の冷媒回路図である。
２１・・・・・・室外ユニッ）、２２，２３．２４・・
・・・・室内ユニット、３２．３２’ 、３２″・・・
・・・源側電磁弁、３９・・・・・・吸入管、４４・・
・・・・均圧用電磁弁、４６・・・・・・均圧用キャピ
ラリチューブ。FIG. 1 is a refrigerant circuit diagram of a conventional multi-type heat pump type air conditioner, and FIG. 2 is a refrigerant circuit diagram of a multi-type heat pump type air conditioner according to an embodiment of the present invention. 21...Outdoor unit), 22, 23.24...
...Indoor unit, 32.32', 32''...
...Source side solenoid valve, 39...Suction pipe, 44...
... Solenoid valve for pressure equalization, 46 ... Capillary tube for pressure equalization.
Claims (1)
、レシーバと源側電磁弁との間に接続したバイパス管に
均圧用電磁弁、均圧用キャピラリチューブを設け、冷房
時圧縮機停止時において、前記源側電磁弁を閉とすると
同時に、前記均圧用電磁弁を開にして均圧するようにし
たマルチ型ヒートポンプ式空気調和機。It has one outdoor unit and multiple indoor units, and a pressure equalizing solenoid valve and pressure equalizing capillary tube are installed in the bypass pipe connected between the receiver and the source side solenoid valve, so that it can be used when the compressor is stopped during cooling. In the multi-type heat pump air conditioner, the source-side solenoid valve is closed, and at the same time, the pressure equalization solenoid valve is opened to equalize the pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP213282A JPS58120062A (en) | 1982-01-08 | 1982-01-08 | Multiple type heat pump system air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP213282A JPS58120062A (en) | 1982-01-08 | 1982-01-08 | Multiple type heat pump system air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58120062A true JPS58120062A (en) | 1983-07-16 |
Family
ID=11520806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP213282A Pending JPS58120062A (en) | 1982-01-08 | 1982-01-08 | Multiple type heat pump system air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58120062A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156163A (en) * | 1982-03-11 | 1983-09-17 | 三洋電機株式会社 | Separation type air conditioner |
-
1982
- 1982-01-08 JP JP213282A patent/JPS58120062A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156163A (en) * | 1982-03-11 | 1983-09-17 | 三洋電機株式会社 | Separation type air conditioner |
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