JPH01150081A - 電磁弁 - Google Patents

電磁弁

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Publication number
JPH01150081A
JPH01150081A JP62305550A JP30555087A JPH01150081A JP H01150081 A JPH01150081 A JP H01150081A JP 62305550 A JP62305550 A JP 62305550A JP 30555087 A JP30555087 A JP 30555087A JP H01150081 A JPH01150081 A JP H01150081A
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JP
Japan
Prior art keywords
valve
fluid port
solenoid valve
solenoid
valve body
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
JP62305550A
Other languages
English (en)
Inventor
Tadashi Aoki
青木　忠
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.)
Saginomiya Seisakusho Inc
Original Assignee
Saginomiya Seisakusho Inc
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Publication date
Application filed by Saginomiya Seisakusho Inc filed Critical Saginomiya Seisakusho Inc
Priority to JP62305550A priority Critical patent/JPH01150081A/ja
Publication of JPH01150081A publication Critical patent/JPH01150081A/ja
Pending legal-status Critical Current

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  • Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
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  • Magnetically Actuated Valves (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。

Description

【発明の詳細な説明】 〔発明の目的〕 産業上の利用分野 本発明はヒートポンプ式マルチエアコンシステムにおけ
る各室内熱交換器の使用とその停止を切り換えるための
電磁弁に関する。
従来の技術 ヒートポンプ式マルチエアコンシステムは、複数の室内
熱交換器を並列に接続して１系統の冷凍回路中に組み込
んだものであるが、各々の室内熱交換器はそれぞれ独立
に使用されあるいは使用を停止することが必要とされる
。従って従来はそれぞれの室内熱交換器への冷媒配管に
設けた電磁弁をそれぞれ独立に操作して、室内熱交換器
への冷媒供給を開閉するようにしていた。このような従
来のエアコンシステムの例を第２図に示すが、冷房時に
は圧縮機へから四方弁Ｂを通り室外熱交換器Ｃおよび主
絞りＤを経て、分流用絞りＥＳ電磁弁Ｆから室内熱交換
器Ｇへと冷媒が供給され、四方弁Ｂを経て圧縮機Ａへ戻
るようになっている。
このとき電磁弁Ｆと並列に設けられたバイパス絞りＨに
は逆止弁Ｉが設けられているので、電磁弁Ｆを閉じるこ
とにより室内熱交換器Ｇへの冷媒供給は完全に停止する
。
このシステムでは、暖房時には上述と逆方向に冷媒が流
れるが、電磁弁Ｆを閉じたときには室内熱交換器Ｇの中
で凝縮した冷媒は逆上弁Ｉを通じてバイパス絞りＨへ流
れ、僅かずつ回収されて冷媒が蓄積しない。従って、使
用再開時に急激に冷媒が流れるための騒音発生がないも
のである。
解決しようとする問題点 前述のエアコンシステムにおいては各室内熱交換器への
冷媒配管を閉止する電磁弁に並べて逆止弁と冷媒回収用
のバイパス絞りとを設けなければならず、配管の組み立
てが複雑となり占有容積も大きく、コスト高となること
を免れることができなかった。
そこで本発明は、通常の電磁弁における全開と全開の２
位置作動の機能に加えてバイパス絞りと逆止弁機能をも
有する小型の電磁弁を提供しようとするものである。
〔発明の構成〕
問題点を解決するための手段 前述のような目的を達成することができる本発明の電磁
弁は、第１流体口と第２流体口との間に設けた弁座を弁
体によって弁室側から開閉する電磁弁において、該弁体
内には該第１流体口に続く弁本体内部流路と該第２流体
口に続く弁本体内部流路とを連通ずる漏洩通路を設け、
該通路内に第２弁座が設けられた第２弁室を形成してな
り、ばね付勢された第２弁体を該第２弁座に対し常時圧
着するよう構成してなるものである。
作用 このような構成を有する本発明の電磁弁は、開状態では
双方向の流体流通が自由であるが閉状態では一方向にお
いて差圧があるときに流通が可能となり、逆方向では流
通が起らない。そして、電磁弁の閉状態における流体の
流通量は、弁体内に設けた通路の流通抵抗を変更するこ
とによって適宜設定しうるちのである。
実施例 本発明の電磁弁の１例を第１図に示す。図において、１
は弁本体であって１ａは第１流体口、１ｂは第２流体口
である。弁室ＩＣには第２流体口１ｂに通ずる弁座１ｄ
が設けられ、弁体２が弁ばね３によって弁座１ｄに向け
て付勢されるように設けである。４は吸引子、５は電磁
コイルである。
弁体２には、その軸部分に第２弁室２ａが形成されてお
り、第２弁室２ａと弁室ＩＣとの間に連通路２ｂが設け
である。また弁座１ｄから第２流体口１ｂに通ずる流路
１ｅに臨む弁体２の先端部から第２弁室２ａの底面に形
成された第２弁座２Ｃに通ずる絞り通路２ｄが設けられ
、第２弁座２Ｃに対して第２弁体６が弱い第２弁ばね７
によって付勢圧着されている。
このように構成された本発明の電磁弁は、第１流体口１
ａから第２流体口１ｂへ向かう流体が、コイル５を励磁
して弁体２を吸引しないと流通することができないよう
になっている。しかし、第２流体口１ｂから第１流体口
１ａへ向かう流体は、弁体２が吸引されたときには大量
に流れることができる一方、弁体２が吸引されずに弁体
ばね３によって弁座１ｄに着座しているときでも、弱い
差圧があれば絞り通路２ｄから第２弁室２ａｓ連通路２
ｂを経て少しずつ流れることができる。
このような本発明の電磁弁において連通路２ｂと絞り通
路２ｄとは相互に位置を交換して設けられていてもよく
、また第２弁体６と第２弁座２Ｃとで形成される逆止弁
の方向が逆、すなわち第１流体口１ａから第２流体口１
ｂへ向う流れを許容するようにしてあってもよい。
〔発明の効果〕
本発明の電磁弁は前述のような構成を有するものであっ
て弁閉時にも冷媒の回収が可能であるヒートポンプ式マ
ルチエアコンシステム等において、電磁開閉弁と逆止弁
とを並設する必要がある場合に使用することにより、コ
ンパクトで高信頼性の設備を組み立てることができる。
【図面の簡単な説明】
第１図は本発明の電磁弁の１実施例の断面図、第２図は
従来のヒートポンプ式マルチエアコンシステムの例を示
す回路図である。 １・・・弁本体、１ａ・・・第１流体口、１ｂ・・・第
２流体口、ｌｃ・・・弁室、１ｄ・・・弁座、２・・・
弁体、２ａ・・・第２弁室、２Ｃ・・・第２弁座、２ｄ
・・・絞り通路、３・・・弁ばね、６・・・第２弁体、
７・・・第２弁ばね。 第２図

Claims (1)

    【特許請求の範囲】
  1. 第１流体口と第２流体口との間に設けた弁座を弁体によ
    って弁室側から開閉する電磁弁において、該弁体内には
    該第１流体口に続く弁本体内部流路と該第２流体口に続
    く弁本体内部流路とを連通する漏洩通路を設け、該通路
    内に第２弁座が設けられた第２弁室を形成してなり、ば
    ね付勢された第２弁体を該第２弁座に対し常時圧着する
    よう構成したことを特徴とする電磁弁。
JP62305550A 1987-12-04 1987-12-04 電磁弁 Pending JPH01150081A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62305550A JPH01150081A (ja) 1987-12-04 1987-12-04 電磁弁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62305550A JPH01150081A (ja) 1987-12-04 1987-12-04 電磁弁

Publications (1)

Publication Number Publication Date
JPH01150081A true JPH01150081A (ja) 1989-06-13

Family

ID=17946509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62305550A Pending JPH01150081A (ja) 1987-12-04 1987-12-04 電磁弁

Country Status (1)

Country Link
JP (1) JPH01150081A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04113864U (ja) * 1991-03-25 1992-10-06 株式会社鷺宮製作所 オリフイス内蔵電磁弁
JP2007321990A (ja) * 2007-08-30 2007-12-13 Saginomiya Seisakusho Inc 双方向型電磁弁
JP2017211034A (ja) * 2016-05-26 2017-11-30 株式会社不二工機 流量調整弁
CN107435754A (zh) * 2016-05-26 2017-12-05 株式会社不二工机 流量调节阀

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04113864U (ja) * 1991-03-25 1992-10-06 株式会社鷺宮製作所 オリフイス内蔵電磁弁
JP2007321990A (ja) * 2007-08-30 2007-12-13 Saginomiya Seisakusho Inc 双方向型電磁弁
JP4629709B2 (ja) * 2007-08-30 2011-02-09 株式会社鷺宮製作所 双方向型電磁弁
JP2017211034A (ja) * 2016-05-26 2017-11-30 株式会社不二工機 流量調整弁
CN107435754A (zh) * 2016-05-26 2017-12-05 株式会社不二工机 流量调节阀
CN107435757A (zh) * 2016-05-26 2017-12-05 株式会社不二工机 流量调节阀
CN107435757B (zh) * 2016-05-26 2020-12-15 株式会社不二工机 流量调节阀

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