JPS63180778A - Three-way valve for air conditioner - Google Patents

Three-way valve for air conditioner

Info

Publication number
JPS63180778A
JPS63180778A JP62010657A JP1065787A JPS63180778A JP S63180778 A JPS63180778 A JP S63180778A JP 62010657 A JP62010657 A JP 62010657A JP 1065787 A JP1065787 A JP 1065787A JP S63180778 A JPS63180778 A JP S63180778A
Authority
JP
Japan
Prior art keywords
port
valve
indoor
outdoor
piping
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
Application number
JP62010657A
Other languages
Japanese (ja)
Inventor
Naoki Iga
伊賀 尚樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Ecology Systems Co Ltd
Original Assignee
Matsushita Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Seiko Co Ltd filed Critical Matsushita Seiko Co Ltd
Priority to JP62010657A priority Critical patent/JPS63180778A/en
Publication of JPS63180778A publication Critical patent/JPS63180778A/en
Pending legal-status Critical Current

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  • Multiple-Way Valves (AREA)

Abstract

PURPOSE:To make it easy to selectively cope with the range of machine, by providing a secondary valve disc in a primary valve disc. CONSTITUTION:The main body 33 of a three-way valve 32 is equipped with a port 34 connected to the inside of an outdoor machine, a port 35 connected to the indoor machine side, a service port 38 which stops discharge of refrigerant, opened by pushing a pin 36, and has a valve core 37 for enclosing the refrigerant, and a valve port 39 which opens/closes the outdoor piping port 34 and the indoor port 35. In this valve port 39, a primary valve part 46 is set, and a primary valve disc 43 of this primary valve part 46 is twisted upward to communicate the outdoor piping port 34 and the indoor piping port 35 with each other. Moreover, a secondary valve disc 51 is set inside the primary valve disc 43, for opening/closing the communication between the outdoor port narrow part 44 and the indoor port narrow part 45. This three-way valve can cope with variety of indoor machines in their size, by selecting these primary and secondary valve discs.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は多室形空気調和機の冷凍サイクル中に設けられ
る減圧装置付三方弁に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a three-way valve with a pressure reducing device installed in the refrigeration cycle of a multi-chamber air conditioner.

従来の技術 2ページ 従来多室形空気調和機の室外機の側壁には、前記室外機
と室内機(図示せず)を接続する接続点となる三方弁が
設けられる。第3図に示すよう如この三方弁1は室外機
内の冷媒配管2と接続した室外配管ポート3と、室内機
側に向って接続する室内配管ポート4と、冷媒封入用の
バルブコアー5を内設したサービスポート6と、室内側
と室外側とにおける冷媒の流通を開閉する弁体7を内設
したバルブポート8を有している。前記バルブポート8
に内設した弁体7はねじ部9を設けてレンチ穴1oにレ
ンチ(工具)を入れ回転することによ如上下に移動し、
弁部11の部分のところで開閉するものである。また弁
体7にはオーリング12を設けて冷媒漏れを防止し、弁
体7の抜は止め用としてストッパーリング13を有する
とともに、キャップ14を備えている。15は室内配管
ポート4側のキャップである。
BACKGROUND ART Page 2 A three-way valve serving as a connection point for connecting the outdoor unit and the indoor unit (not shown) is provided on the side wall of the outdoor unit of a conventional multi-room air conditioner. As shown in Fig. 3, this three-way valve 1 has an outdoor piping port 3 connected to the refrigerant piping 2 inside the outdoor unit, an indoor piping port 4 connected toward the indoor unit, and a valve core 5 for sealing the refrigerant. It has a service port 6 and a valve port 8 having a valve body 7 therein for opening and closing the flow of refrigerant between the indoor side and the outdoor side. Said valve port 8
The valve body 7 installed in the valve body 7 has a threaded portion 9 and can be moved up and down by inserting a wrench (tool) into the wrench hole 1o and rotating it.
It opens and closes at the valve portion 11. The valve body 7 is also provided with an O-ring 12 to prevent refrigerant leakage, a stopper ring 13 for preventing the valve body 7 from being removed, and a cap 14. 15 is a cap on the indoor piping port 4 side.

このように従来の三方弁が構成され、たとえば1.0〜
2.OH)インバータ制御の圧縮機を使用した多室形空
気調和機の側壁にこの本体1を固定し、3ページ 冷凍サイクルに接続している状態において、キャップ1
4を取)、レンチをレンチ穴10に入れて弁体7を左回
転して上方に移動させ、弁部11を開らき、室外配管ポ
ート3側と室内配管ポート4側とを連通させるものであ
った。
A conventional three-way valve is constructed in this way, and for example, 1.0 to
2. OH) Fix this main body 1 to the side wall of a multi-chamber air conditioner using an inverter-controlled compressor, and when connected to the refrigeration cycle on page 3, remove the cap 1.
4), insert a wrench into the wrench hole 10, turn the valve body 7 counterclockwise and move it upward, open the valve part 11, and connect the outdoor piping port 3 side and the indoor piping port 4 side. there were.

発明が解決しようとする問題点 このような従来の構成では、2台の室内機の内、1台は
1.0 w能力用とし、残る1台は1.5w能力とし、
前記1.6)pの室内機を1.0)Pに室内機に変更し
たいという要望、すなわち室内機の機種レンジの選択を
するときは、1.○Pに見合う適正な冷媒循環量を確保
し、減圧を大きくして室内機側の負荷に対応する必要が
あシ、室外機側において減圧機構となるキャピラリチュ
ーブの継増しや、減圧弁を継増しするなど大がかシな工
事を必要とし、手間が非常に大がかりとなった。そのた
めコストも嵩み、商品レンジの選択がユーザー側にとっ
て不利となるという問題点があった。
Problems to be Solved by the Invention In such a conventional configuration, one of the two indoor units is for 1.0 W capacity, and the remaining one is for 1.5 W capacity.
If you wish to change the above 1.6) P indoor unit to 1.0) P indoor unit, that is, when selecting the model range of the indoor unit, 1. ○It is necessary to ensure an appropriate amount of refrigerant circulation commensurate with P and increase the pressure reduction to cope with the load on the indoor unit, so it is necessary to add more capillary tubes and pressure reducing valves on the outdoor unit. This required extensive construction work such as adding more parts, which was very time-consuming. Therefore, there were problems in that costs increased and selection of the product range was disadvantageous for the user.

本発明はこのような問題点を解決するもので、インバー
タ制御の圧縮機を搭載した室外機と接続した1、5)p
の室内機を、どちらの室内機も1.Q)pにするといっ
た変更をするという商品レンジの選択を容易にする三方
弁を提供することを目的とするものである。
The present invention solves these problems, and aims to solve the problems described above.
Both indoor units are 1. Q) The purpose is to provide a three-way valve that facilitates the selection of product ranges such as changes to p.

問題点を解決するための手段 この問題点を解決するために本発明は室外配管ポートと
、室内配管ポートと、冷媒封入用等のために備えたバル
ブコアーを有するサービスポートと、前記室外配管ポー
トと前記室内配管ポートとを開閉するバルブポートとを
備え、前記バルブポート側に室外配管ポートに設けた1
次弁部を開閉する1次弁体を設け、この1次弁体内に前
記室外配管ポートと連通ずる室外ポート細径部と前記室
内配管ポートに連通ずる室内ポート細径部を設け、前記
室外ポート細径部の2次弁部を開閉する2次弁体を設け
た三方弁の構成としたものである。
Means for Solving the Problem In order to solve this problem, the present invention provides an outdoor piping port, an indoor piping port, a service port having a valve core for sealing refrigerant, and the outdoor piping port. a valve port for opening and closing the indoor piping port, and a valve port provided at the outdoor piping port on the valve port side.
A primary valve body that opens and closes the next valve part is provided, an outdoor port small diameter part that communicates with the outdoor piping port and an indoor port small diameter part that communicates with the indoor piping port are provided in the primary valve body, and the outdoor port It has a three-way valve configuration with a secondary valve body that opens and closes a secondary valve portion in the small diameter portion.

作  用 この構成によシ、インバータ制御の圧縮機を搭載した室
外機と接続した1、5H)の室内機を1.OH)に変更
して使用するときは、室外配管ポート側の5 ページ 1次弁部を1次弁体で閉とし、2次弁体を上方に移動さ
せ室外ポート細径部の2次弁体を開口し、室外配管ポー
ト側と室内配管ポート側を連通させて前記2次弁体で減
圧させ1.0)pの冷媒循環量を確保することとなる。
Operation According to this configuration, the indoor unit (1, 5H) connected to the outdoor unit equipped with an inverter-controlled compressor is connected to the indoor unit (1, 5H). When changing to OH), close the primary valve part on the outdoor piping port side with the primary valve element, move the secondary valve element upward, and close the secondary valve element on the small diameter part of the outdoor port. is opened, the outdoor piping port side and the indoor piping port side are communicated, and the pressure is reduced by the secondary valve body, thereby ensuring a refrigerant circulation amount of 1.0)p.

実施例 以下本発明による一実施例を第1図および第2図にもと
づき説明する。第2図において21は室外機であり、こ
の室外機21には2台の室内機22の内、1.0)P能
力の室内機22aと、1.5)P能力の室内機22bと
が配管23によって接続されている。また前記室外機2
1にはインバータ制御の圧縮機24と、四方弁26と、
室外熱交換器26と、減圧機構となる1次キャピラリチ
ューブ27と自動膨張弁28と、受液器29と、2次キ
ャピラリチューブ30と、室内機22の数に対応して設
けた液側電磁弁31とが備えられる。そして室外機21
の側壁には室内機22と配管23を介して接続し、冷媒
を連通させ、かつ冷媒封入のために設けらftだ三方弁
32.32aを固定している。
EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 2, 21 is an outdoor unit, and of the two indoor units 22, this outdoor unit 21 includes an indoor unit 22a with a 1.0) P capacity and an indoor unit 22b with a 1.5) P capacity. They are connected by piping 23. In addition, the outdoor unit 2
1 includes an inverter-controlled compressor 24, a four-way valve 26,
An outdoor heat exchanger 26, a primary capillary tube 27 serving as a pressure reduction mechanism, an automatic expansion valve 28, a liquid receiver 29, a secondary capillary tube 30, and a liquid-side electromagnetic device provided in correspondence with the number of indoor units 22. A valve 31 is provided. And outdoor unit 21
A ft-long three-way valve 32.32a is fixed to the side wall of the refrigerant, which is connected to the indoor unit 22 via piping 23 to communicate the refrigerant and to seal in the refrigerant.

6ページ このように冷媒配管が構成され、前記三方弁32.32
aは第1図に示すような構成となっている。すなわち三
方弁32の本体33は室外機21内に接続される室外配
管ポート34と、配管23第2図を介して室内機22側
に接続する室内配管ポート36と、冷媒の放出を閉、ピ
ン′36を押すことによシ連通し、冷媒封入用として設
けたバルブコアー37を有するサービスポート38と、
前記室外配管ポート34と室内ポート35とを開閉する
バルブポート39とを備えている。前記バルブポート3
9にはねじ部4oで回転し、冷媒漏れを防止するオーリ
ング41.レンチ(工具)を挿入するレンチ穴42を備
えた1次弁体43が設けられるとともに前記室外配管ポ
ート34に連通ずる室外ポート細径部44と前記室内配
管ポート36に連通ずる室内ポート細径部45を備えて
いる。
Page 6 The refrigerant piping is configured in this way, and the three-way valve 32.32
a has a configuration as shown in FIG. In other words, the main body 33 of the three-way valve 32 is connected to an outdoor piping port 34 connected to the outdoor unit 21, an indoor piping port 36 connected to the indoor unit 22 side via the piping 23 in FIG. A service port 38 which is connected by pressing '36 and has a valve core 37 provided for sealing refrigerant;
A valve port 39 is provided to open and close the outdoor piping port 34 and the indoor port 35. Said valve port 3
9 includes an O-ring 41 that rotates on the threaded portion 4o to prevent refrigerant leakage. A primary valve body 43 is provided with a wrench hole 42 into which a wrench (tool) is inserted, and an outdoor port narrow diameter portion 44 communicates with the outdoor piping port 34 and an indoor port narrow diameter portion communicates with the indoor piping port 36. It is equipped with 45.

そして前記1次弁体43を上方にねじ上げることによっ
て室外配管ポート34と室内配管ポート35とが連通ず
る1次弁部46を設けている。さらに前記1次弁体43
の内側には2次弁体室47を設7 ベーン け、ねじ部48で回転し、冷媒漏れを防止するオーリン
グ49.レンチ(工具)を挿入するレンチ穴5oを備え
た2次弁体51が設けられるとともに前記室外ポート細
径部44と室内ポート細径部45との連通を開閉するよ
うにした2次弁部52を設けている。2次弁体51の上
方にはこの2次弁体51のストッパーとなるストッパー
リング53と、1次弁体43の上方にはこの1次弁体4
3のストッパーとなるストッパーリング54を設けると
ともに、キャップ55を設けている。なお室内配管ポー
ト36の端部56は配管23と接続するためのフレア一
部である。
By screwing the primary valve body 43 upward, a primary valve portion 46 is provided in which the outdoor piping port 34 and the indoor piping port 35 communicate with each other. Furthermore, the primary valve body 43
A secondary valve body chamber 47 is provided inside the O-ring 49, which rotates with a vane and a threaded portion 48 to prevent refrigerant leakage. A secondary valve part 52 is provided with a secondary valve body 51 having a wrench hole 5o into which a wrench (tool) is inserted, and which opens and closes communication between the outdoor port narrow diameter part 44 and the indoor port narrow diameter part 45. has been established. Above the secondary valve body 51 is a stopper ring 53 that serves as a stopper for the secondary valve body 51, and above the primary valve body 43 is a stopper ring 53 that serves as a stopper for the secondary valve body 51.
A stopper ring 54 serving as a stopper for No. 3 is provided, and a cap 55 is also provided. Note that the end portion 56 of the indoor piping port 36 is a part of a flare for connecting to the piping 23.

上記構成において、第2図に示す三方弁32と室内機2
2における1、oP用の室内機22a、室内機22bを
配管23で接続するが、しかしここで仮に1.5)p用
の室内機22bを1.0H)用の室内機に変更したいと
するときは、三方弁32の本体33の操作は、第1図に
おいて1次弁体43を下げた状態、すなわち1次弁部4
6を閉にしたまま、キャップ56をはずしてからレンチ
穴50にレンチを入れて回転させ、2次弁体61を上方
に上げて室外ポート細径部44と室内ポート細径部46
とを連通させる。これによって1.5wの室内機22b
を1.0IIPの室内機に変更したことによる冷媒循環
量が得られる。すなわち1.0)P用の室内機に対応す
る冷媒の減圧が室外ポート細径部44から室内ポート細
径部45に流れるときに減圧され適正な冷媒量が確保さ
れるのである。
In the above configuration, the three-way valve 32 and the indoor unit 2 shown in FIG.
1 in 2, the indoor unit 22a for oP and the indoor unit 22b are connected with piping 23, but now suppose that we want to change the indoor unit 22b for 1.5) p to the indoor unit for 1.0H). When the main body 33 of the three-way valve 32 is operated, the primary valve body 43 is lowered in FIG.
6 remains closed, remove the cap 56, insert a wrench into the wrench hole 50, rotate it, raise the secondary valve body 61, and connect the outdoor port narrow diameter part 44 and the indoor port narrow diameter part 46.
communicate with. As a result, the 1.5W indoor unit 22b
The refrigerant circulation amount can be obtained by changing to an indoor unit of 1.0IIP. That is, the pressure of the refrigerant corresponding to the 1.0)P indoor unit is reduced when it flows from the outdoor port narrow diameter section 44 to the indoor port narrow diameter section 45, and an appropriate amount of refrigerant is ensured.

また、室内機22aおよび室内機22bのどちらか、ま
たは両方とも1.5)P用の室内機に変えたときは、2
次弁体51を下げて2次弁部52を閉とし、室外ポート
細径部44と室内ポート細径部45とを遮断し、1次弁
体43を上方に上げて室外配管ポート34と室内配管ポ
ート35とを連通して、減圧量を三方弁においては無く
して1.5IPの室内機に対応した冷媒循環量を得るよ
うにするものである。
In addition, when either or both of the indoor unit 22a and the indoor unit 22b are changed to a 1.5)P indoor unit,
The next valve body 51 is lowered to close the secondary valve part 52 to shut off the outdoor port small diameter part 44 and the indoor port small diameter part 45, and the primary valve body 43 is raised upward to connect the outdoor piping port 34 and the indoor port to each other. By communicating with the piping port 35, the pressure reduction amount is eliminated in the three-way valve, and the refrigerant circulation amount corresponding to the 1.5 IP indoor unit is obtained.

発明の効果 前記実施例の説明によシ明らかなように本発明は、室外
配管ポートと、室内配管ポートとを開閉9ページ するバルブポートに1次弁部を開閉する1次弁体と、こ
の1次弁体内に前記室外配管ポートと連通ずる室外ポー
ト細径部に室外ポート細径部の2次弁部を開閉する2次
弁体を備えて、室内機の機種の選定に対応して室外配管
ポートと室内配管ポートとを連通させるか、室内ポート
細径部と室外ポート細径部を連通させるかを操作するよ
うにしたから、室内機の変更による組合せがあっても、
1次弁体か、2次弁体のどちらかの操作を行なうことに
より容易に対応することができ、従来のようにキャピラ
リチューブの継増しや、減圧弁の継増しをすることによ
る工数の増大もなくコストが減少し、短時間で室内機変
更による対応ができユーザー側にも便ならしむるという
効果を有するものである。
Effects of the Invention As is clear from the description of the embodiments described above, the present invention provides a primary valve body that opens and closes a primary valve portion in a valve port that opens and closes an outdoor piping port and an indoor piping port, and A secondary valve body is provided in the small diameter part of the outdoor port that communicates with the outdoor piping port in the primary valve body to open and close the secondary valve part of the small diameter part of the outdoor port. Since you have to control whether the piping port communicates with the indoor piping port, or whether the small diameter part of the indoor port communicates with the small diameter part of the outdoor port, even if there are combinations due to changes in the indoor unit,
This can be easily handled by operating either the primary valve body or the secondary valve body, and the increase in man-hours required by adding capillary tubes or pressure reducing valves as in the past. This has the effect of reducing costs without any problems, allowing the user to change the indoor unit in a short time, and making it convenient for the user.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の三方弁の断面図、第2図は
同三方弁を使用した冷凍サイクルの回路図、第3図は従
来の三方弁の断面図である。 32・・・・・三方弁、33・・・・・・本体、34・
・・・・室外10ページ 配管ポート、35・・・・・・室内配管ポート、37・
・・・・・バ、11/7’コア、38・・・・・・サー
ビスポート、39・・・・・・バルブポート、43・・
・・・・1次弁体、44・・・・・室外ポート細径部、
45・・・・・・室内ポート細径部、46・・・・・・
1次弁部、51・・・・・2次弁体、52・・・・・・
2次弁部。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名星−
ヨ峡 33−−一ント、イふ 37−−−バルブ′コア 3B・39−−−ヅーUス永’−) 4S−−−キー内   ケ sl、要−2次印JI本 44Z S /仮 534[ q4340 Fl−/IQ       QQ 第2図
FIG. 1 is a sectional view of a three-way valve according to an embodiment of the present invention, FIG. 2 is a circuit diagram of a refrigeration cycle using the same three-way valve, and FIG. 3 is a sectional view of a conventional three-way valve. 32... Three-way valve, 33... Body, 34...
...Outdoor piping port, page 10, 35...Indoor piping port, 37.
...Bar, 11/7' core, 38...Service port, 39...Valve port, 43...
...Primary valve body, 44...Outdoor port small diameter part,
45...Indoor port narrow diameter part, 46...
Primary valve part, 51... Secondary valve body, 52...
Secondary valve part. Name of agent: Patent attorney Toshio Nakao and one other star
Yo Gorge 33--Int, If 37--Valve'Core 3B/39--Z-Usu Long'-) 4S---Inside key Kesl, Required-Second stamp JI book 44Z S/Temporary 534 [ q4340 Fl-/IQ QQ Figure 2

Claims (1)

【特許請求の範囲】[Claims] 室外配管ポートと、室内配管ポートと、冷媒封入用等の
ために備えたバルブコアーを有するサービスポートと、
前記室外配管ポートと前記室内配管ポートとを開閉する
バルブポートとを備え、前記バルブポート側に室外配管
ポートに設けた1次弁部を開閉する1次弁体と、この1
次弁体内に前記室外配管ポートと連通する室外ポート細
径部と、前記室内配管ポートに連通する室内ポート細径
部を設けるとともに前記室外ポート細径部の2次弁部を
開閉する2次弁体を備えてなる空気調和機用三方弁。
an outdoor piping port, an indoor piping port, a service port having a valve core for refrigerant sealing, etc.;
a primary valve body that opens and closes a primary valve section provided in the outdoor piping port on the valve port side;
A secondary valve that opens and closes a secondary valve part of the outdoor port small diameter part is provided in the next valve body with an outdoor port small diameter part that communicates with the outdoor piping port and an indoor port small diameter part that communicates with the indoor piping port. A three-way valve for air conditioners with a body.
JP62010657A 1987-01-20 1987-01-20 Three-way valve for air conditioner Pending JPS63180778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62010657A JPS63180778A (en) 1987-01-20 1987-01-20 Three-way valve for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62010657A JPS63180778A (en) 1987-01-20 1987-01-20 Three-way valve for air conditioner

Publications (1)

Publication Number Publication Date
JPS63180778A true JPS63180778A (en) 1988-07-25

Family

ID=11756297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62010657A Pending JPS63180778A (en) 1987-01-20 1987-01-20 Three-way valve for air conditioner

Country Status (1)

Country Link
JP (1) JPS63180778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7260943B2 (en) * 2003-10-31 2007-08-28 Interdynamics, Inc. Apparatus and method for servicing a coolant system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7260943B2 (en) * 2003-10-31 2007-08-28 Interdynamics, Inc. Apparatus and method for servicing a coolant system

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