JPH0649980Y2 - solenoid valve - Google Patents
solenoid valveInfo
- Publication number
- JPH0649980Y2 JPH0649980Y2 JP1987070109U JP7010987U JPH0649980Y2 JP H0649980 Y2 JPH0649980 Y2 JP H0649980Y2 JP 1987070109 U JP1987070109 U JP 1987070109U JP 7010987 U JP7010987 U JP 7010987U JP H0649980 Y2 JPH0649980 Y2 JP H0649980Y2
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- valve
- chamber
- valve seat
- main valve
- 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 - Lifetime
Links
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- Details Of Valves (AREA)
- Magnetically Actuated Valves (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は流体の管路に用いられる電磁弁の閉止速度を遅
くする技術に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a technique for slowing the closing speed of a solenoid valve used in a fluid conduit.
水道水等の圧力流体に用いられる管路においては、管路
の中間に手動弁や電磁弁を設置し供給を受ける側の要望
に応じて送水や停止が出来るようにしている。そして送
水状態から停止するには弁を閉じればよいのであるが、
弁を停止したときに衝撃圧が発生し、いわゆるウオター
ハンマ現象を生じることがある。このウオターハンマの
衝撃により管路や管路中に設けられた弁やその他のの機
器類が傷められることは勿論、この現象の発生する状況
によってはその音が不快感を与える場合もある。In a pipeline used for pressurized fluid such as tap water, a manual valve or a solenoid valve is installed in the middle of the pipeline so that water can be supplied or stopped according to the request of the supply side. And to stop from the water supply state, you can close the valve,
When the valve is stopped, an impact pressure is generated, which may cause a so-called water hammer phenomenon. The impact of the water hammer not only damages the pipe line and valves and other devices provided in the pipe line, but also the sound may cause discomfort depending on the situation in which this phenomenon occurs.
上記のウオターハンマ現象は、一般に手でハンドルを廻
す方式の手動弁ではあまりおこらず、電磁弁のばあいに
問題となり易い。その理由は、弁の閉止が手動弁では徐
々にされるのに対し、電磁弁では急激にされるからであ
る。The water hammer phenomenon described above does not often occur in a manual valve of a type in which a handle is turned by hand, and tends to be a problem in the case of a solenoid valve. The reason is that the closing of the valve is gradually done in the manual valve, whereas it is done rapidly in the solenoid valve.
ここで、本考案は、弁が閉止されるときに、徐々に閉止
する電磁弁を提供することを目的としている。It is an object of the present invention to provide a solenoid valve that gradually closes when the valve is closed.
本考案は、上記の目的を達成するために、一次口と二次
口との間に主弁座を形成した弁室と、該主弁座に接離す
る主弁体を備えたプランジャと、該プランジャを進退自
在に収容して該弁室の一部を形成するプランジャチュー
ブと、該プランジャチューブの一端に設けられた吸引子
と、該吸引子を磁化する電磁コイルと、該プランジャを
主弁座に向けて付勢するばね手段とを有する電磁弁にお
いて、 前記プランジャが、前記主弁座側の端部から吸引子側に
向けて穿設されたチャンバと、該チャンバの隔壁に形成
された貫通孔の該主弁座側に形成された副弁座と、該副
弁座に接離する副弁体と、該チャンバの主弁座側に保持
された前記主弁体と、副弁体を副弁座に向けて付勢する
ばね手段と、該チャンバと前記弁室とを連通する導通孔
とを有し、プランジャとプランジャチューブとの間に微
小間隙からなる均圧路を設けた構成を特徴としている。In order to achieve the above object, the present invention provides a valve chamber having a main valve seat formed between a primary port and a secondary port, and a plunger having a main valve body that comes into contact with and separates from the main valve seat. A plunger tube for accommodating the plunger so as to move back and forth to form a part of the valve chamber, a suction element provided at one end of the plunger tube, an electromagnetic coil for magnetizing the suction element, and a main valve for the plunger. In a solenoid valve having spring means for urging toward a seat, the plunger is formed in a chamber bored from the end portion on the main valve seat side toward the suction element side and a partition wall of the chamber. A sub-valve seat formed on the main valve seat side of the through hole, a sub-valve body that contacts and separates from the sub-valve seat, the main valve body held on the main valve seat side of the chamber, and a sub-valve body. Spring means for urging the valve chamber toward the sub-valve seat, and a conduction hole communicating the chamber with the valve chamber, The structure is characterized in that a pressure equalizing path consisting of a minute gap is provided between the plunger and the plunger tube.
本考案の１実施例について第１図により説明する。Ａは
電磁弁本体で、１は電磁弁の弁室であり、２は流体の入
り口となる一次口で、３は出口となる二次口で、４は一
次口３の弁室側の端面に設けられた主弁座である。電磁
弁本体Ａには弁室１の一部を形成するプランジャチュー
ブＡ′が設けられており、プランジャチューブＡ′内に
はプランジャ５が摺動可能に収容されていて該プランジ
ャ５は弁室１を吸引子側弁室1aと主弁座側弁室1bとに分
けている。６はプランジャ５とプランジャチューブＡ′
との間に設けられた微小間隙であり、プランジャ５の両
側における弁室1a,1b間の均圧路となっている。７及び
８はプランジャ５の両端部から他端部に向かって穿設さ
れたチャンバで、９は両チャンバの間に介在する隔壁で
ある（以下『上側チャンバ７』、『下側チャンバ８』と
いう）。10はこの隔壁９に穿けられた貫通孔の主弁座側
に形成された副弁座である。11は弁本体の図の上側に設
けられた電磁コイル、12はこの電磁コイルによって磁化
される吸引子で、プランジャ５はこの吸引子によって弁
室内を軸方向に摺動する。13は上側チャンバ７内に嵌装
されたばね手段で、プランジャ５を主弁座４に向けて付
勢する。14はプランジャの下側チャンバ８内に嵌装され
たばね手段で、図の下側に主弁体15をまた上側には副弁
体16を具備して、副弁体16を副弁座10に圧接している。
そして主弁座４と主弁体15で主弁を構成し、副弁座10と
副弁体16で副弁を構成している。なお符号５′が下側チ
ャンバ８と主弁座側弁室1bとを均圧にする導通孔であ
る。An embodiment of the present invention will be described with reference to FIG. A is a solenoid valve body, 1 is a valve chamber of the solenoid valve, 2 is a primary port that is an inlet of fluid, 3 is a secondary port that is an outlet, and 4 is an end face of the primary port 3 on the valve chamber side. It is the main valve seat provided. The solenoid valve body A is provided with a plunger tube A'that forms a part of the valve chamber 1, and a plunger 5 is slidably accommodated in the plunger tube A '. Is divided into a suction side valve chamber 1a and a main valve seat side valve chamber 1b. 6 is a plunger 5 and a plunger tube A '
Is a minute gap provided between the valve chambers 1a and 1b on both sides of the plunger 5. Reference numerals 7 and 8 denote chambers bored from both ends of the plunger 5 toward the other end, and 9 is a partition wall interposed between the chambers (hereinafter referred to as "upper chamber 7" and "lower chamber 8"). ). Reference numeral 10 is an auxiliary valve seat formed on the main valve seat side of the through hole formed in the partition wall 9. Reference numeral 11 denotes an electromagnetic coil provided on the upper side of the drawing of the valve body, 12 denotes an attractor magnetized by this electromagnetic coil, and the plunger 5 slides in the valve chamber in the axial direction by this attractor. Reference numeral 13 is a spring means fitted in the upper chamber 7, and biases the plunger 5 toward the main valve seat 4. Reference numeral 14 denotes a spring means fitted in the lower chamber 8 of the plunger. The main valve body 15 is provided on the lower side of the drawing and the auxiliary valve body 16 is provided on the upper side, and the auxiliary valve body 16 is attached to the auxiliary valve seat 10. Pressed.
The main valve seat 4 and the main valve body 15 form a main valve, and the sub valve seat 10 and the sub valve body 16 form a sub valve. Reference numeral 5'denotes a through hole for equalizing the pressure in the lower chamber 8 and the main valve seat side valve chamber 1b.
次ぎに、この電磁弁の作用を説明する。一次口２から入
った高圧側の流体である水は、まず主弁座側弁室1bを満
たし、微小間隙の均圧路６を経て吸引子側弁室1a内とプ
ランジャの上側チャンバ７も満たす。プランジャの下側
チャンバ８には導通孔５′から侵入する。電磁コイル11
に電気が通電されていなければ、吸引子は磁化されずプ
ランジャ５は第１図に示すようにばね手段13により下方
に付勢され、主弁体15は主弁座４に圧接し主弁は閉じら
れ、水の流れはない。更に、弁室１内の圧力は入り口の
圧力と等しく出口の圧力より大きいから、流体の圧力差
に因っても主弁は閉じられている。Next, the operation of this solenoid valve will be described. Water, which is the fluid on the high pressure side that has entered from the primary port 2, first fills the main valve seat side valve chamber 1b, and then also fills the inside of the suction side valve chamber 1a and the upper chamber 7 of the plunger via the pressure equalizing path 6 of a minute gap. . The lower chamber 8 of the plunger enters through the through hole 5 '. Electromagnetic coil 11
If electricity is not applied to the plunger, the attractor is not magnetized and the plunger 5 is biased downward by the spring means 13 as shown in FIG. 1, the main valve body 15 is pressed against the main valve seat 4, and the main valve is closed. It is closed and there is no water flow. Further, since the pressure in the valve chamber 1 is equal to the pressure at the inlet and higher than the pressure at the outlet, the main valve is closed even due to the pressure difference of the fluid.
電磁コイル11に電気が通電されると、吸引子は磁化さ
れ、プランジャ５をばね13及び圧力差に抗して図の上方
に吸い上げる。すると上側弁室1aに充満している圧力の
高い水は、プランジャの上側チャンバ７から副弁体16を
押し開けて下側チャンバ８に入り、導通孔５′，主弁座
側弁室1bを経て出口３へと流れ出して、プランジャ５は
吸引子12に吸着し、主弁は速やかに開放され、水は入り
口から出口へと流れる。When electricity is applied to the electromagnetic coil 11, the attractor is magnetized, and sucks the plunger 5 upward in the figure against the spring 13 and the pressure difference. Then, the high-pressure water filled in the upper valve chamber 1a pushes the sub valve body 16 out of the upper chamber 7 of the plunger to enter the lower chamber 8, and the conduction hole 5 ', the main valve seat side valve chamber 1b After that, it flows out to the outlet 3, the plunger 5 adsorbs to the suction element 12, the main valve is quickly opened, and the water flows from the inlet to the outlet.
電磁コイルへの通電が停止されると、吸引子は磁力を失
い、プランジャ５はばね手段13により図の下方へ押し戻
される。しかしこの場合プランジャ５が第１図の状態に
戻り、主弁体15が主弁座４に圧接されるには、吸引子側
弁室1aが当初の量の水で充満されなければならない。と
ころがプランジャ５が下方に下がろうとすると、副弁体
16は水圧とばね手段14により副弁座10に圧接され副弁を
閉止してしまうので、このルートから吸引子側弁室1aへ
は水は流れ込めない。そこで水はプランジャ５と弁室１
の間の微小間隙による均圧路６を通って吸引子側弁室1a
に少しずつ流れ込むしかない。従って、この均圧路６の
間隙を適当に設定することにより、プランジャ５の下降
速度にブレーキがかかり、電磁弁の閉止は徐々におこな
われることになる。なお上側チャンバ７は、ばね手段13
を取り付けるために都合がよいので設けられたもので、
必ずしも必須のものではない。When the energization of the electromagnetic coil is stopped, the attractor loses its magnetic force, and the plunger 5 is pushed back by the spring means 13 downward in the drawing. However, in this case, in order for the plunger 5 to return to the state of FIG. 1 and the main valve body 15 to be pressed against the main valve seat 4, the suction side valve chamber 1a must be filled with the initial amount of water. However, when the plunger 5 is going to go down, the auxiliary valve body
Since 16 is pressed against the auxiliary valve seat 10 by the water pressure and the spring means 14 to close the auxiliary valve, water cannot flow from this route to the suction side valve chamber 1a. Therefore, the water is the plunger 5 and the valve chamber 1
Through the pressure equalizing passage 6 formed by a minute gap between
There is no choice but to pour into it. Therefore, by appropriately setting the gap of the pressure equalizing passage 6, the descending speed of the plunger 5 is braked, and the electromagnetic valve is gradually closed. The upper chamber 7 is provided with spring means 13
It is provided because it is convenient for attaching,
It is not absolutely necessary.
第２図は他の実施例で、対応する構成要素には同一の符
号を付して示してある。この実施例においては、均圧路
６の効果をあげるために、微小間隙にピストンリング18
を挿入している。この構成によれば主弁座側弁室1bから
吸引子側弁室1aへの水の流入は更に遅くでき、電磁弁の
閉止は更にゆっくりになる。または、均圧路６の間隙を
広くしてもよくなり、プランジャ及び弁室の加工精度を
下げることができ、コスト引き下げが可能となる。な
お、ピストンリングは一つに限らず、複数でもよい。FIG. 2 shows another embodiment in which corresponding components are designated by the same reference numerals. In this embodiment, in order to enhance the effect of the pressure equalizing passage 6, the piston ring 18 is provided in the minute gap.
Have been inserted. With this configuration, the flow of water from the main valve seat side valve chamber 1b into the suction element side valve chamber 1a can be further delayed, and the closing of the electromagnetic valve can be further slowed. Alternatively, the gap of the pressure equalizing passage 6 may be widened, the processing accuracy of the plunger and the valve chamber can be reduced, and the cost can be reduced. The number of piston rings is not limited to one and may be plural.
第３図は更に別の実施例であり、第２図の場合と同じく
対応する構成要素には同一の符号を付して示してある。
この実施例においては、流体の流れる方向を変更できる
可逆弁に本考案の実施をしている。符号２′,3′はどち
らか一方が入り口となり他方が出口となるもので、一次
口と二次口をつなぐ主弁座４は２′と３′の両方に設け
られ、プランジャ５の下端に固定された一つの主弁体1
5′がこの両方の主弁座４に圧接し摺動する構成となっ
ている。従って、プランジャ５が吸引子２とばね手段13
によって上下に移動することにより、二つの主弁の開閉
が同時になされ、流体はどちら向きにでも流すことがで
き、可逆弁として機能する。FIG. 3 shows still another embodiment, and the same components as those in FIG. 2 are designated by the same reference numerals.
In this embodiment, the present invention is applied to a reversible valve capable of changing the flow direction of fluid. Reference numerals 2'and 3'indicate one of the inlet and the other the outlet, and the main valve seat 4 connecting the primary and secondary ports is provided on both 2'and 3 ', and at the lower end of the plunger 5. One fixed main valve body 1
5'is in pressure contact with both main valve seats 4 and slides. Therefore, the plunger 5 includes the suction element 2 and the spring means 13.
By moving up and down by, the two main valves are opened and closed at the same time, the fluid can flow in either direction, and it functions as a reversible valve.
第４図は本考案による電磁弁の使用例で、一台の室外ユ
ニット21で、複数の室内ユニット22を接続したマルチタ
イプの冷房装置である。室外ユニット21で冷却されて液
化した冷媒は配管23を経て各電磁弁Ａに供給される。こ
れら電磁弁のうち通電されたものは電磁弁が開き、冷媒
はキャピラリ24によって必要な量だけ室内ユニット22に
送られ、室内の熱を吸熱し室内を冷房するとともに、自
身は気化しコンプレッサ25により圧縮される。コンプレ
ッサ25で圧縮され高温高圧となった冷媒は室外ユニット
21に戻り冷却され液化する。以上のような一巡のサイク
ルをくりかえして室内の冷房を継続する。そして、冷房
を停止するには電磁弁Ａへの通電を停止する。すると、
電磁弁Ａは前述のように徐々に閉止するので衝撃圧は小
さく成り、ウオターハンマ現象による不快な音も発生し
なくなる。FIG. 4 shows an example of use of the solenoid valve according to the present invention, which is a multi-type cooling device in which one outdoor unit 21 is connected to a plurality of indoor units 22. The liquefied refrigerant cooled in the outdoor unit 21 is supplied to each solenoid valve A through the pipe 23. Among these solenoid valves, the one that is energized opens the solenoid valve, the refrigerant is sent to the indoor unit 22 by the required amount by the capillary 24, absorbs the heat in the room and cools the room, and at the same time vaporizes itself and by the compressor 25. Compressed. The high temperature and high pressure refrigerant compressed by the compressor 25 is an outdoor unit
It returns to 21 and is cooled and liquefied. The indoor cooling is continued by repeating the above cycle. Then, to stop the cooling, the energization of the solenoid valve A is stopped. Then,
Since the solenoid valve A is gradually closed as described above, the impact pressure becomes small, and the unpleasant sound due to the water hammer phenomenon does not occur.
以上説明したように本考案によれば、電磁弁に対する開
弁通電時においては、プランジャの貫通孔を閉止してい
る副弁体が該貫通孔を開放すると共にプランジャが吸引
子に吸着されて主弁体は速やかに一次口と二次口を連通
させ、閉弁通電停止時においては、副弁体が該貫通孔を
閉止したままでは水はプランジャとプランジャチューブ
との間の微小間隙からなる均圧路のみを通って吸引子側
に流入するので、主弁体の閉止が徐々に行なわれ、ウォ
ターハンマ現象を防止することができる。As described above, according to the present invention, when the solenoid valve is energized, the auxiliary valve body closing the through hole of the plunger opens the through hole and the plunger is attracted to the suction element. The valve body promptly connects the primary and secondary ports, and when the valve closing current is stopped, if the sub-valve keeps the through hole closed, the water will consist of a minute gap between the plunger and the plunger tube. Since it flows into the suction element side only through the pressure passage, the main valve body is gradually closed, and the water hammer phenomenon can be prevented.
第１図は本考案の一実施例を示す断面図、 第２図は本考案の他の実施例の要部断面図、 第３図は本考案の他の実施例である可逆弁の断面図、 第４図は本考案の電磁弁の使用例を示す図である。 Ａ……電磁弁、１……弁室、２……一次口、３……二次
口、４……主弁座、５……プランジャ、６……均圧路、
８……チャンバ、10……副弁座、11……電磁コイル、12
……吸引子、14……ばね手段、15……主弁体、16……副
弁体。FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view of an essential part of another embodiment of the present invention, and FIG. 3 is a sectional view of a reversible valve which is another embodiment of the present invention. FIG. 4 is a view showing an example of use of the solenoid valve of the present invention. A: Solenoid valve, 1 ... Valve chamber, 2 ... Primary port, 3 ... Secondary port, 4 ... Main valve seat, 5 ... Plunger, 6 ... Pressure equalizing passage,
8 ... Chamber, 10 ... Sub valve seat, 11 ... Electromagnetic coil, 12
...... Suction element, 14 ...... Spring means, 15 ...... Main valve element, 16 ...... Sub valve element.
Claims (1)
弁室と、該主弁座に接離する主弁体を備えたプランジャ
と、該プランジャを進退自在に収容して該弁室の一部を
形成するプランジャチューブと、該プランジャチューブ
の一端に設けられた吸引子と、該吸引子を磁化する電磁
コイルと、該プランジャを主弁座に向けて付勢するばね
手段とを有する電磁弁において、 前記プランジャが、前記主弁座側の端部から吸引子側に
向けて穿設されたチャンバと、該チャンバの隔壁に形成
された貫通孔の該主弁座側に形成された副弁座と、該副
弁座に接離する副弁体と、該チャンバの主弁座側に保持
された前記主弁体と、副弁体を副弁座に向けて付勢する
ばね手段と、該チャンバと前記弁室とを連通する導通孔
とを有し、プランジャとプランジャチューブとの間に微
小間隙からなる均圧路を設けた構成を特徴とする電磁
弁。1. A valve chamber having a main valve seat formed between a primary opening and a secondary opening, a plunger provided with a main valve body that comes into contact with and separates from the main valve seat, and the plunger is housed so as to move back and forth. A plunger tube that forms a part of the valve chamber, a suction element provided at one end of the plunger tube, an electromagnetic coil that magnetizes the suction element, and a spring that biases the plunger toward the main valve seat. In the solenoid valve having means, the plunger has a chamber bored from the end portion on the main valve seat side toward the suction element side, and the main valve seat side of a through hole formed in a partition wall of the chamber. Formed on the main valve seat side of the chamber, the sub-valve seat formed on the main valve seat side of the chamber, and the sub-valve body facing the sub-valve seat. A plunger and a plunger tug have a spring means for urging and a through hole communicating the chamber with the valve chamber. A solenoid valve characterized by a pressure equalizing path consisting of a minute gap between the valve and the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987070109U JPH0649980Y2 (en) | 1987-05-13 | 1987-05-13 | solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987070109U JPH0649980Y2 (en) | 1987-05-13 | 1987-05-13 | solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63178677U JPS63178677U (en) | 1988-11-18 |
| JPH0649980Y2 true JPH0649980Y2 (en) | 1994-12-14 |
Family
ID=30911441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987070109U Expired - Lifetime JPH0649980Y2 (en) | 1987-05-13 | 1987-05-13 | solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649980Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100031149A1 (en) | 2008-07-01 | 2010-02-04 | Yoostar Entertainment Group, Inc. | Content preparation systems and methods for interactive video systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2361398B1 (en) * | 1973-12-10 | 1975-03-13 | Danfoss A/S, Nordborg (Daenemark) | Solenoid valve with springs |
-
1987
- 1987-05-13 JP JP1987070109U patent/JPH0649980Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63178677U (en) | 1988-11-18 |
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