JPH0765696B2 - Reversible solenoid valve - Google Patents
Reversible solenoid valveInfo
- Publication number
- JPH0765696B2 JPH0765696B2 JP62239044A JP23904487A JPH0765696B2 JP H0765696 B2 JPH0765696 B2 JP H0765696B2 JP 62239044 A JP62239044 A JP 62239044A JP 23904487 A JP23904487 A JP 23904487A JP H0765696 B2 JPH0765696 B2 JP H0765696B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- port
- opening
- pilot
- main
- 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.)
- Expired - Fee Related
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は可逆冷凍サイクル等に用いられる可逆電磁弁に
関するものである。TECHNICAL FIELD The present invention relates to a reversible solenoid valve used in a reversible refrigeration cycle or the like.
従来の技術 第４図（イ）（ロ）はビルの冷暖房についてのマルチシ
ステムを示すものであり、ａは圧縮機、ｂは四方逆転
弁、ｃは室外熱交換器、d1，d2は室内熱交換器、ｅは膨
張弁、ｆは電磁弁、g1，g2，g3，g4は逆止弁であり、こ
れらが周知の如くに管路ｐによって連結されている。2. Description of the Related Art Fig. 4 (a) and (b) show a multi-system for heating and cooling a building, where a is a compressor, b is a four-way reversing valve, c is an outdoor heat exchanger, and d 1 and d 2 are The indoor heat exchanger, e is an expansion valve, f is a solenoid valve, g 1 , g 2 , g 3 , g 4 are check valves, which are connected by a pipe line p as is well known.
冷房運転時においては（第４図イ）、室内熱交換器d1，
d2に対応する所望の電磁弁ｆを開くことにより、冷媒は
圧縮機ａ、四方逆転弁ｂ、室外熱交換器ｃ、逆止弁g4、
逆止弁g3と、電磁弁ｆ、膨張弁ｅ、室内熱交換器d
1（d2）、四方逆転弁ｂ、圧縮機ａの順路で流れ、暖房
運転時においては（第４図ロ）、所望の室内熱交換器
d1，d2に対応する電磁弁ｆを開くことにより、冷媒は圧
縮機ａ、四方逆転弁ｂ、室内熱交換器d1（d2）、逆止弁
g1、電磁弁ｆ、逆止弁g2、膨張弁ｅ、室外熱交換器ｃ、
四方逆転弁ｂ、圧縮器ａの順路で流れる。During the cooling operation (Fig. 4B), the indoor heat exchanger d 1 ,
By opening the desired solenoid valve f corresponding to d 2 , the refrigerant is compressed by the compressor a, the four-way reversing valve b, the outdoor heat exchanger c, the check valve g 4 ,
Check valve g 3 , solenoid valve f, expansion valve e, indoor heat exchanger d
1 (d 2 ), the four-way reversing valve b, and the compressor a flow in the normal path, and during the heating operation (Fig. 4B), the desired indoor heat exchanger
By opening the solenoid valves f corresponding to d 1 and d 2 , the refrigerant is compressed by the compressor a, the four-way reversing valve b, the indoor heat exchanger d 1 (d 2 ), the check valve.
g 1 , solenoid valve f, check valve g 2 , expansion valve e, outdoor heat exchanger c,
It flows in the normal path of the four-way reversing valve b and the compressor a.
そして、この回路構成にあっては、多数の逆止弁を必要
とすると共に回路が複雑となる欠点を有している。In addition, this circuit configuration has a drawback that a large number of check valves are required and the circuit becomes complicated.
発明が解決しようとする問題点 本発明は上記した点に着目して為されたものであり、か
かるマルチシステムの冷暖房装置等において、電磁弁の
構造について工夫することにより、逆止弁とその回路を
簡略化し得るようにしたものである。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention has been made in view of the above points, and in such a multi-system cooling and heating apparatus, etc., a check valve and its circuit are devised by devising the structure of the solenoid valve. Is to be simplified.
問題点を解決するための手段 上記の目的を達成するため、本発明においては、弁本体
の１次口と２次口間における弁口の両側にそれぞれ弁座
を形成すると共に各弁座に接離する逆止弁と主弁を設
け、該逆止弁と該主弁には該弁座に対する当接部を除い
て軸方向に流通部を形成して該弁本体の該１次口と該２
次口間に該逆止弁と該主弁の各流通部を介して連通する
バイパス通路を形成し、該バイパス通路において該主弁
の背後にパイロット弁口を形成し、該パイロット弁口を
電磁駆動のパイロット弁により開閉することを特徴とす
る。Means for Solving the Problems In order to achieve the above object, in the present invention, valve seats are formed on both sides of the valve opening between the primary opening and the secondary opening of the valve body, and the valve seats are connected to each other. A check valve and a main valve that are separated from each other are provided, and the check valve and the main valve are formed with an axial flow portion except for a contact portion with respect to the valve seat to form the primary port of the valve body and the main valve. Two
A bypass passage communicating between the check valve and each main flow passage of the main valve is formed between the next openings, and a pilot valve opening is formed behind the main valve in the bypass passage. It is characterized by being opened and closed by a driving pilot valve.
実施例 第１図において、１は弁本体であり、１次口1aと２次口
1bを有していてそれぞれ１次管２と２次管３が接続され
ている。１次口1aと２次口1b間に隔壁1cには弁口1dが形
成され、該弁口1dの１次口1a側と２次口1b側にはそれぞ
れ弁座1d1，1d2が形成されている。Example In FIG. 1, reference numeral 1 is a valve body, and a primary port 1a and a secondary port
1b has a primary tube 2 and a secondary tube 3 connected to each other. A valve opening 1d is formed in the partition wall 1c between the primary opening 1a and the secondary opening 1b, and valve seats 1d 1 and 1d 2 are formed on the primary opening 1a side and the secondary opening 1b side of the valve opening 1d, respectively. Has been done.
１次口1a側において１次管２内に逆止弁４が摺動自在に
設けられると共に打出しストッパー2aにより支持されて
いる。逆止弁４における弁座1d1に対する当接部分4aを
除いて軸方向に流通部4bが形成されている。弁本体１の
２次口1b側には弁室Ｒが設けられ、該弁室Ｒを経由して
２次口1bから１次口1aに至るバイパス通路Ｐにおいて、
該弁室Ｒの上部に加締めて固定される筒体５による隔壁
5aが設けられ、該隔壁5aのパイロット弁口5a1をプラン
ジャー６の先端に設けたパイロット弁７が開閉する。プ
ランジャー６乃至パイロット弁７は吸引鉄心８との間に
設けたスプリング９により、非通電時においては弁閉方
向に付勢されており、ソレノイドコイル10に通電した際
においてパイロット弁口5a1を開放する。弁室Ｒ内にお
いて主弁11が背後のパイロット弁口5a1と前方の弁口1d
間において弁座1d2に対して接離自在に設けられ、該主
弁11に設けた摺動筒部11aが弁本体１と前記筒体５との
間の間隙12により移動を案内されている。主弁11には、
２次口1bとパイロット弁口5a1側を連通させる流通部11b
が形成され、従って、１次口1aと２次口1b間のバイパス
通路Ｐは逆止弁４の流通部4bと主弁11の流通部11bを介
して完結する。A check valve 4 is slidably provided in the primary pipe 2 on the side of the primary port 1a and is supported by a punching stopper 2a. A circulation portion 4b is formed in the axial direction except for the contact portion 4a of the check valve 4 with respect to the valve seat 1d 1 . A valve chamber R is provided on the side of the secondary port 1b of the valve body 1, and in the bypass passage P from the secondary port 1b to the primary port 1a via the valve chamber R,
A partition wall formed by a cylindrical body 5 which is swaged and fixed to the upper portion of the valve chamber R
5a is provided, the pilot valve 7 in which a pilot valve port 5a 1 of the partition wall 5a at the tip of the plunger 6 is opened and closed. The plunger 6 to the pilot valve 7 are urged in the valve closing direction when not energized by a spring 9 provided between the plunger 6 and the pilot iron core 8, and when the solenoid coil 10 is energized, the pilot valve port 5a 1 is opened. Open. In the valve chamber R, the main valve 11 has a rear pilot valve opening 5a 1 and a front valve opening 1d.
Between the valve seat 1d 2 and the valve seat 1d 2 , and the sliding cylinder portion 11a provided on the main valve 11 is guided to move by the gap 12 between the valve body 1 and the cylinder body 5. . In the main valve 11,
Distribution part 11b that connects the secondary port 1b and the pilot valve port 5a 1 side
Therefore, the bypass passage P between the primary port 1a and the secondary port 1b is completed via the circulation portion 4b of the check valve 4 and the circulation portion 11b of the main valve 11.
上記構成において、パイロット弁７がパイロット弁口5a
1を閉じている状態では、１次口1aからも２次口1bから
も流通不能である。In the above configuration, the pilot valve 7 is the pilot valve port 5a
In the state where 1 is closed, neither the primary port 1a nor the secondary port 1b can flow.
ソレノイドコイル10に通電してパイロト弁７がパイロッ
ト弁口5a1を開放した状態においては、１次口1aからの
流体は逆止弁４を押し動かして弁座1d1に当接させるこ
とにより弁口1dを閉止し、流体は流通部4bからバイパス
通路Ｐ、パイロット弁口5a1、流通部11b,弁室Ｒを通っ
て２次口1bへ流れる。この場合には、比較的小さなパイ
ロット弁口5a1を通るので流量が少ない。In the state where the solenoid coil 10 is energized and the pilot valve 7 opens the pilot valve port 5a 1 , the fluid from the primary port 1a pushes the check valve 4 to bring it into contact with the valve seat 1d 1 The port 1d is closed, and the fluid flows from the circulation part 4b to the secondary port 1b through the bypass passage P, the pilot valve port 5a 1 , the circulation part 11b and the valve chamber R. In this case, the flow rate is small because it passes through the relatively small pilot valve opening 5a 1 .
２次口1bからの流体は、主弁11を押し上げて直接に開弁
駆動し、弁口1dから１次口1aに対して大きな流量で流れ
る（第２図）。The fluid from the secondary port 1b pushes up the main valve 11 to directly drive the valve open, and flows at a large flow rate from the valve port 1d to the primary port 1a (Fig. 2).
第３図は、本発明にかかる可逆電磁弁ｖを用いた冷暖房
回路を示すものであり、従来の如くに（第４図イ，ロ）
圧縮機ａ、四方逆転弁ｂ、室外熱交換器ｃ、室内熱交換
器d1，d2、膨張弁ｅを配列したものにおいて、室内熱交
換器d1，d2側の逆止弁ｇを１個にすると共に回路を簡素
化している。FIG. 3 shows a cooling and heating circuit using the reversible solenoid valve v according to the present invention.
In the arrangement of the compressor a, the four-way reversing valve b, the outdoor heat exchanger c, the indoor heat exchangers d 1 and d 2 , and the expansion valve e, the check valve g on the indoor heat exchangers d 1 and d 2 side is arranged. The number is reduced to one and the circuit is simplified.
なお、この場合において、１次口1aは冷房運転の際の１
次側となり、２次口1bは比較的に大きな冷媒流量を必要
とする暖房運転時の１次側とする。In this case, the primary inlet 1a is the one
It is the secondary side, and the secondary port 1b is the primary side during heating operation that requires a relatively large refrigerant flow rate.
発明の効果 本発明は上記した如くに、弁本体の１次口と２次口間に
おける弁口の両側にそれぞれ弁座を形成すると共に各弁
座に接離する逆止弁と主弁を設け、該逆止弁と該主弁に
は該弁座に対する当接部を除いて軸方向に流通部を形成
して該弁本体の該１次口と該２次口間に該逆止弁と該主
弁の各流通部を介して連通するバイパス通路を形成し、
該バイパス通路において該主弁の背後にパイロット弁口
を形成し、該パイロット弁口を電磁駆動のパイロット弁
により開閉するようにして成るものであるから、パイロ
ット弁によりパイロット弁口を閉じることにより１次口
と２次口の両側からの流通を完全に遮断し得ると共に、
パイロット弁口を開くことにより１次口側と２次口側か
ら異る流量をもって流体を通過させることができる特長
を有する。As described above, the present invention forms the valve seats on both sides of the valve opening between the primary opening and the secondary opening of the valve body, and provides the check valve and the main valve that come into contact with and separate from the valve seats. , A check valve and a main valve are provided with an axial flow portion except for a contact portion for the valve seat, and the check valve is provided between the primary port and the secondary port of the valve body. Forming a bypass passage communicating with each flow passage of the main valve,
In the bypass passage, a pilot valve opening is formed behind the main valve, and the pilot valve opening is opened and closed by an electromagnetically driven pilot valve. Therefore, the pilot valve is closed by the pilot valve. It can completely block the flow from both sides of the secondary and secondary outlets,
By opening the pilot valve port, it has the feature of allowing fluid to flow through the primary and secondary ports at different flow rates.
第１図は本発明の一実施例についての断面図、 第２図は同上の作動状態の断面図、 第３図は本発明に係る可逆電磁弁の使用回路図、 第４図（イ）（ロ）は従来における可逆型冷暖房回路の
説明図である。 １…弁本体、1a…１次口、1b…２次口、1d…弁口、1
d1，1d2…弁座、４…逆止弁、5a1…パイロット弁口、７
…パイロット弁、11…主弁、11b…主弁に形成した通
孔、Ｐ…バイパス通路。FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is a cross-sectional view of the same operating state as above, FIG. 3 is a circuit diagram of a reversible solenoid valve according to the present invention, and FIG. (B) is an explanatory view of a conventional reversible cooling / heating circuit. 1 ... Valve body, 1a ... Primary port, 1b ... Secondary port, 1d ... Valve port, 1
d 1, 1d 2 ... valve seat, 4 ... check valve, 5a 1 ... pilot valve port, 7
... Pilot valve, 11 ... Main valve, 11b ... Through hole formed in main valve, P ... Bypass passage.
Claims (1)
両側にそれぞれ弁座を形成すると共に各弁座に接離する
逆止弁と主弁を設け、該逆止弁と該主弁には該弁座に対
する当接部を除いて軸方向に流通部を形成して該弁本体
の該１次口と該２次口間に該逆止弁と該主弁の各流通部
を介して連通するバイパス通路を形成し、該バイパス通
路において該主弁の背後にパイロット弁口を形成し、該
パイロット弁口を電磁駆動のパイロット弁により開閉す
ることを特徴とする可逆電磁弁。1. A check valve and a main valve, each of which has a valve seat formed on both sides of the valve port between the primary port and the secondary port of the valve body, and which comes into contact with and separates from each valve seat. A flow portion is formed in the main valve in the axial direction except for the contact portion with respect to the valve seat, and the check valve and the main valve flow between the primary port and the secondary port of the valve body. A reversible solenoid valve, characterized in that a bypass passage communicating with the main valve is formed in the bypass passage, a pilot valve opening is formed behind the main valve in the bypass passage, and the pilot valve opening is opened and closed by an electromagnetically driven pilot valve. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62239044A JPH0765696B2 (en) | 1987-09-25 | 1987-09-25 | Reversible solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62239044A JPH0765696B2 (en) | 1987-09-25 | 1987-09-25 | Reversible solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6483983A JPS6483983A (en) | 1989-03-29 |
| JPH0765696B2 true JPH0765696B2 (en) | 1995-07-19 |
Family
ID=17039039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62239044A Expired - Fee Related JPH0765696B2 (en) | 1987-09-25 | 1987-09-25 | Reversible solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0765696B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242736A1 (en) * | 2021-05-20 | 2022-11-24 | 浙江盾安人工环境股份有限公司 | Reversible solenoid valve, and air conditioning unit having same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168365A (en) * | 2000-12-01 | 2002-06-14 | Aisan Ind Co Ltd | Pilot type passage opening/closing valve provided with backflow protective function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60149468U (en) * | 1984-03-15 | 1985-10-04 | 株式会社ナブコ | Solenoid valve device for brake holding |
-
1987
- 1987-09-25 JP JP62239044A patent/JPH0765696B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242736A1 (en) * | 2021-05-20 | 2022-11-24 | 浙江盾安人工环境股份有限公司 | Reversible solenoid valve, and air conditioning unit having same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6483983A (en) | 1989-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |