JP3155630B2 - Energized closed solenoid valve - Google Patents
Energized closed solenoid valveInfo
- Publication number
- JP3155630B2 JP3155630B2 JP27852392A JP27852392A JP3155630B2 JP 3155630 B2 JP3155630 B2 JP 3155630B2 JP 27852392 A JP27852392 A JP 27852392A JP 27852392 A JP27852392 A JP 27852392A JP 3155630 B2 JP3155630 B2 JP 3155630B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- magnetic
- plunger
- suction element
- movable suction
- 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
【０００１】[0001]
【産業上の利用分野】本発明は、通電時閉型の電磁弁に
関するものであり、例えばエアコンなどにおいて圧縮機
の動作停止時に流路の開放を必要とする冷媒回路などに
用いられるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve which is closed when energized, and is used, for example, in a refrigerant circuit of an air conditioner or the like which needs to open a flow passage when the operation of a compressor is stopped. .
【０００２】[0002]
【従来の技術】図４は、出願人の先願にかかる実願平３
−３７０４４号にかかる通電時閉型電磁弁の構造を示
し、弁体ａはプランジャｂとともに弁開ばねｃと弁閉ば
ねｄとに付勢されて、その釣合い位置にあって弁座ｅか
ら浮き上った状態にあり、通電時にはプランジャｂが可
動吸引子ｆに吸引され、弁開ばねｃを圧縮することによ
り吸着し弁体ａが弁座ｅに着座するように構成されてい
る。2. Description of the Related Art FIG.
1 shows a structure of a current-closing solenoid valve according to Japanese Patent No. 37044, in which a valve body a is urged by a valve opening spring c and a valve closing spring d together with a plunger b to float at a balanced position from a valve seat e. When the power is supplied, the plunger b is sucked by the movable suction element f, and is attracted by compressing the valve opening spring c so that the valve body a is seated on the valve seat e.
【０００３】プランジャｂが可動吸引子ｆに吸着したと
きに一体化したプランジャｂと可動吸引子ｆには上向き
の磁力が働き、この磁力に対抗し弁体ａを下方に動かす
ためには弁閉ばねｄを比較的に強くする必要があるが、
この為に通電時に弁体ａが弁座ｅに着座する際に大きな
衝撃音を発し、エアコンにおける室内熱交換器にかかる
電磁弁が用いるとその動作音がかなり耳障りとなる。When the plunger b is attracted to the movable suction element f, an upward magnetic force acts on the integrated plunger b and the movable suction element f. To move the valve body a downward against this magnetic force, the valve must be closed. It is necessary to make the spring d relatively strong,
For this reason, when the valve element a is seated on the valve seat e at the time of energization, a loud impact noise is emitted, and when an electromagnetic valve for an indoor heat exchanger in an air conditioner is used, the operation noise is quite annoying.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記した問題
点に着目し、通電時に弁体が弁座に衝合する際の衝撃音
を静音化するようにしたものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is intended to reduce the impact sound when the valve body abuts on a valve seat during energization.
【０００５】[0005]
【課題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、弁本体に設けたプランジャチュ
ーブの周囲にソレノイドコイルを設け、該プランジャチ
ューブ内において弁本体側に可動吸引子を設けると共に
他側に磁性ガイドを設け、該可動吸引子と該磁性ガイド
間において弁開ばねにより付勢された状態で磁性プラン
ジャを収容し、該弁本体の弁座に接離する弁体を該磁性
プランジャに連結し、該ソレノイドコイルに対する無通
電時において離隔状態にある該可動吸引子と該磁性プラ
ンジャが通電時において該弁開ばねを圧縮して吸着し、
これら吸着した可動吸引子と磁性プランジャとが前記弁
座側に移動して該弁座に前記弁体が当接して閉弁状態を
得る通電時閉型電磁弁において、前記ソレノイドコイル
が、前記プランジャチューブの外周に位置して該ソレノ
イドコイルに対する通電により磁気回路が形成される外
凾を有しており、前記可動吸引子が、前記プランジャチ
ューブの内径に対応する外径の大径部と、該大径部より
も小径の小径部とを有しており、前記大径部が、前記ソ
レノイドコイルに対する無通電時において、前記弁開ば
ねによる付勢力によって、前記プランジャチューブの中
心軸方向において前記外凾を挟んで前記磁性プランジャ
とは反対側に位置しており、前記ソレノイドコイルに対
する通電時に、前記外凾を介して前記可動吸引子に作用
する磁力により前記大径部が、前記中心軸方向において
前記外凾と同一箇所に位置するよう前記磁性プランジャ
側に移動すると共に、前記可動吸引子から前記磁性プラ
ンジャに作用する磁力により該磁性プランジャが、前記
弁開ばねを圧縮し前記大径部が前記中心軸方向において
前記外凾と同一箇所に位置した前記可動吸引子に吸着さ
れて、前記弁体が前記弁座に近接し、前記弁座に近接し
た前記弁体に作用する、弁前後の圧力差による吸込力に
より、前記弁座に前記弁体が当接するように構成されて
いることを特徴とする。In order to achieve the above object, in the present invention, a solenoid coil is provided around a plunger tube provided in a valve body, and a movable suction element is provided on the valve body side in the plunger tube. A magnetic guide is provided on the other side, and a magnetic plunger is accommodated in a state urged by a valve opening spring between the movable suction element and the magnetic guide, and a valve body which comes into contact with and separates from a valve seat of the valve body is provided. The movable attraction element and the magnetic plunger, which are connected to a magnetic plunger and are separated when the solenoid coil is not energized, compresses and adsorbs the valve opening spring when energized ,
The sucked movable suction element and the magnetic plunger are connected to the valve.
The valve moves to the seat side and the valve body contacts the valve seat to close the valve.
In the energizing closed solenoid valve obtained, the solenoid coil
Is located on the outer periphery of the plunger tube,
The magnetic circuit is formed
The movable suction element has a box, and the plunger
A large-diameter portion having an outer diameter corresponding to the inner diameter of the tube,
Also has a small diameter portion with a small diameter, and the large diameter portion is
When the solenoid is not energized,
The inside of the plunger tube is
The magnetic plunger sandwiching the outer casing in the axial direction
And is opposite to the solenoid coil.
Act on the movable suction element via the outer casing
The large diameter portion in the direction of the central axis
The magnetic plunger is located at the same position as the outer box.
Side and move the magnetic puller from the movable suction element.
The magnetic plunger is actuated by the magnetic force acting on the plunger.
The large diameter portion compresses the valve opening spring in the central axis direction.
Adsorbed to the movable suction element located at the same location as the outer box
The valve element is in proximity to the valve seat, and in proximity to the valve seat.
The suction force due to the pressure difference between the front and rear valves acting on the valve body
It is configured such that the valve body contacts the valve seat.
And said that you are.
【０００６】[0006]
【作用】通電時において、プランジャチューブの外周に
位置して通電により磁気回路が形成されるソレノイドコ
イルの外凾と、プランジャチューブの中心軸方向におい
て同一箇所に大径部が位置するように、可動吸引子が磁
性プランジャ側に移動し、この可動吸引子からの磁力に
よって磁性プランジャが弁開ばねを圧縮して可動吸引子
に吸着されると、弁体が弁座に近接して、弁前後の圧力
差による吸込力が弁体に作用するようになり、この吸込
力により自動的に閉弁する。[Function] When energized, the outer circumference of the plunger tube
Solenoid core that is located and forms a magnetic circuit when energized
Il outer box and plunger tube in the center axis direction
The movable suction element is magnetic so that the large diameter part is
Moves to the side of the plunger, and the magnetic force
Therefore, the magnetic plunger compresses the valve opening spring to move the movable suction element.
When adsorbed on the valve, the valve element approaches the valve seat,
The suction force due to the difference acts on the valve body, and the valve is automatically closed by the suction force.
【０００７】[0007]
【実施例】図１において、１は非磁性材から成る弁本体
であり、一次口１ａと二次口１ｂ間に弁座１ｃを設けて
いる。弁本体１に立設したプランジャチューブ２の中に
は、弁本体側に、磁性材からなりプランジャチューブ２
の内径に対応する外径の大径部３ａと、該大径部３ａよ
りも小径の小径部３ｂとを有する可動吸引子３を設け、
他側に強磁性材の磁性ガイド４を設けている。そして、
可動吸引子３と磁性ガイド４の間には、弁開ばね６によ
って下方から付勢された状態において強磁性材の磁性プ
ランジャ７を設け、磁性プランジャ７に可動吸引子３を
貫通して非磁性材から成る弁体８を連結している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a valve body made of a non-magnetic material, and a valve seat 1c is provided between a primary port 1a and a secondary port 1b. In the plunger tube 2 erected on the valve body 1, a plunger tube 2 made of a magnetic material is provided on the valve body side.
A large diameter portion 3a having an outer diameter corresponding to the inner diameter of the large diameter portion 3a;
A movable suction element 3 having a smaller diameter portion 3b having a smaller diameter ,
On the other side, a magnetic guide 4 made of a ferromagnetic material is provided. And
A magnetic plunger 7 made of ferromagnetic material is provided between the movable suction element 3 and the magnetic guide 4 in a state where the magnetic plunger 7 is urged from below by a valve opening spring 6. The valve body 8 made of a material is connected.
【０００８】筒状の可動吸引子３と磁性プランジャ７間
に弁体８をガイドとした弁開ばね６を設け、可動吸引子
３から突出し且つプランジャ７に達しない状態で可動吸
引子３の内径をガイドとした補助弁開ばね９を設けてい
る。磁性ガイド４と磁性プランジャ７は同心状に形成さ
れていて、磁性ガイド４が中心軸部４ａを有し、磁性プ
ランジャ７にその係合筒部７ａが形成され、両者は摺動
自在に組合わされている。磁性ガイド４と磁性プランジ
ャ７との間には軟質の合成樹脂やゴム材から成る防音リ
ング１０が介在し、無通電時において防音リング１０が
磁性ガイド４の段部４ｂと係合筒部７ａに接触して挾持
される。A valve opening spring 6 is provided between the cylindrical movable suction element 3 and the magnetic plunger 7 with the valve body 8 as a guide. The valve opening spring 6 projects from the movable suction element 3 and does not reach the plunger 7. The auxiliary valve opening spring 9 is provided with the guide as a guide. The magnetic guide 4 and the magnetic plunger 7 are formed concentrically. The magnetic guide 4 has a central shaft portion 4a, and the engaging plunger 7a is formed on the magnetic plunger 7, and the two are slidably combined. ing. A soundproof ring 10 made of a soft synthetic resin or rubber material is interposed between the magnetic guide 4 and the magnetic plunger 7, and the soundproof ring 10 is connected to the step 4b of the magnetic guide 4 and the engaging cylinder 7a when no power is supplied. It is held in contact.
【０００９】プランジャチューブ２の周囲にソレノイド
コイル１１を設け、ソレノイドコイル１１を囲む磁性材
から成る外凾１２に前記磁性ガイド４を磁性材のボルト
１４により固定する。無通電時においては、可動吸引子
３における弁座１ｃ側の下端は弁本体１の段部１ｄに当
接していて、可動吸引子３の大径部３ａは外凾１２より
も下方に位置しており、この状態で通電すると、磁性プ
ランジャ７は可動吸引子３により吸引されると共に可動
吸引子３も磁性プランジャ７との相互吸引作用により段
部１ｄから浮き上って磁性プランジャ７と吸着してバラ
ンスする。 この際の動作をさらに詳細に説明すると、ソ
レノイドコイル１１に通電すると、外凾１２を磁路とす
る磁気回路が形成されて、この外凾１２から可動吸引子
３に作用する磁力により、弁本体１の段部１ｄから可動
吸引子３の下端が離間するように可動吸引子３が上方に
吸引されて、可動吸引子３の大径部３ａが外凾１２の図
中真横に位置する箇所において、外凾１２から可動吸引
子３に作用する磁力が最も大きくなることから、磁力に
よる可動吸引子３の上昇がここでリミットとなる。 これ
と共に、外凾１２と共に磁路の一部を構成する可動吸引
子３からの磁力により磁性プランジャ７が弁開ばね６，
９を圧縮して可動吸引子３に吸着し、この結果、ソレノ
イドコイル１１に対する通電で発生する磁力により、可
動吸引子３と磁性プランジャ７とが、互いに吸着した状
態で大径部３ａが外凾１２の図中真横に位置する箇所に
一旦移動することになる。 A solenoid coil 11 is provided around the plunger tube 2, and the magnetic guide 4 is fixed to an outer box 12 made of a magnetic material surrounding the solenoid coil 11 with a bolt 14 of a magnetic material. When no electricity is supplied, the lower end of the movable suction element 3 on the valve seat 1c side is in contact with the step 1d of the valve body 1, and the large diameter portion 3a of the movable suction element 3 is
When the power is supplied in this state, the magnetic plunger 7 is attracted by the movable suction element 3, and the movable suction element 3 also floats from the step 1d due to the mutual attraction action with the magnetic plunger 7. It balances with the plunger 7 . The operation at this time will be described in more detail.
When the solenoid coil 11 is energized, the outer casing 12 becomes a magnetic path.
A magnetic circuit is formed.
3 is movable from the step 1d of the valve body 1 by the magnetic force acting on the valve body 1.
The movable suction element 3 is moved upward so that the lower end of the suction element 3 is separated.
After being sucked, the large diameter portion 3a of the movable suction element 3 is
Movable suction from outer box 12 at the position located right next to the center
Since the magnetic force acting on the element 3 becomes the largest,
The rise of the movable suction element 3 due to this is the limit here. this
In addition, the movable suction which forms a part of the magnetic path together with the outer casing 12
The magnetic plunger 7 is actuated by the magnetic force from the element 3
9 is compressed and adsorbed to the movable suction element 3, and as a result, the solenoid
Due to the magnetic force generated by energizing the
A state in which the dynamic suction element 3 and the magnetic plunger 7 are attracted to each other.
In the state where the large diameter portion 3a is located right next to the outer box 12 in the drawing.
I will move once.
【００１０】磁性プランジャ７と可動吸引子３が吸着し
た状態で大径部３ａが外凾１２の図中真横に位置する箇
所に一旦移動すると、可動吸引子３が浮き上っているの
で弁体８は弁座１ｃに当接していない近接状態にあり
（図２）、弁体８と弁座１ｃとの隙間が小さいので、弁
前後の差圧による吸込力が弁体８に作用し、吸引された
弁体８が吸着状態にある磁性プランジャ７と可動吸引子
３を引き下げつつ弁座１ｃに当接して閉弁する（図
３）。When the magnetic plunger 7 and the movable suction element 3 are attracted to each other , the large-diameter portion 3a is positioned on the outer box 12 just beside the figure.
Once moved to the place, since the movable suction element 3 is floating, the valve element 8 is in a close state not in contact with the valve seat 1c (FIG. 2), and the gap between the valve element 8 and the valve seat 1c is small. Therefore, the suction force due to the differential pressure between the front and rear of the valve acts on the valve body 8, and the sucked valve body 8 comes into contact with the valve seat 1c and closes while pulling down the magnetic plunger 7 and the movable suction element 3 in the suction state. (FIG. 3).
【００１１】通電を遮断すると、磁性プランジャ７が弁
開ばね６，９の作用を受けて可動吸引子３から離隔し、
これにつれて弁体８が開弁するもので、この際に磁性プ
ランジャ７は防音リング１０を介して磁性ガイド４の段
部４ｂに衝合するので衝突音を発生しない。When the energization is interrupted, the magnetic plunger 7 is separated from the movable suction element 3 by the action of the valve opening springs 6, 9.
The valve element 8 opens as the valve moves. At this time, the magnetic plunger 7 abuts on the step 4b of the magnetic guide 4 via the soundproof ring 10, so that no collision noise is generated.
【００１２】[0012]
【発明の効果】本発明は上記した如くに、弁本体に設け
たプランジャチューブの周囲にソレノイドコイルを設
け、該プランジャチューブ内において弁本体側に可動吸
引子を設けると共に他側に磁性ガイドを設け、該可動吸
引子と該磁性ガイド間において弁開ばねにより付勢され
た状態で磁性プランジャを収容し、該弁本体の弁座に接
離する弁体を該磁性プランジャに連結し、該ソレノイド
コイルに対する無通電時において離隔状態にある該可動
吸引子と該磁性プランジャが通電時において該弁開ばね
を圧縮して吸着し、これら吸着した可動吸引子と磁性プ
ランジャとが前記弁座側に移動して該弁座に前記弁体が
当接して閉弁状態を得る通電時閉型電磁弁において、前
記ソレノイドコイルが、前記プランジャチューブの外周
に位置して該ソレノイドコイルに対する通電により磁気
回路が形成される外凾を有しており、前記可動吸引子
が、前記プランジャチューブの内径に対応する外径の大
径部と、該大径部よりも小径の小径部とを有しており、
前記大径部が、前記ソレノイドコイルに対する無通電時
において、前記弁開ばねによる付勢力によって、前記プ
ランジャチューブの中心軸方向において前記外凾を挟ん
で前記磁性プランジャとは反対側に位置しており、前記
ソレノイドコイルに対する通電時に、前記外凾を介して
前記可動吸引子に作用する磁力により前記大径部が、前
記中心軸方向において前記外凾と同一箇所に位置するよ
う前記磁性プランジャ側に移動すると共に、前記可動吸
引子から前記磁性プランジャに作用する磁力により該磁
性プランジャが、前記弁開ばねを圧縮し前記大径部が前
記中心軸方向において前記外凾と同一箇所に位置した前
記可動吸引子に吸着されて、前記弁体が前記弁座に近接
し、前記弁座に近接した前記弁体に作用する、弁前後の
圧力差による吸込力により、前記弁座に前記弁体が当接
するように構成されているものである。 そのため、弁座
から離間した開弁状態の弁体を、ソレノイドコイルに対
する通電により発生する磁力で一旦弁座に近接させ、さ
らに、弁座に近接した弁体に作用する弁前後の圧力差に
よる吸込力によって、最終的に弁座に弁体を当接させる
ことになるから、ソレノイドコイルに対する通電によっ
て弁体が弁座に当接するまで一気に移動するのを防止し
て、通電時において弁座に当接する弁体の衝撃音を静音
化する効果がある。As described above, according to the present invention, a solenoid coil is provided around a plunger tube provided on a valve body, a movable suction element is provided on the valve body side in the plunger tube, and a magnetic guide is provided on the other side. Receiving a magnetic plunger between the movable suction element and the magnetic guide in a state where the magnetic plunger is urged by a valve-opening spring, and connecting a valve element which comes into contact with and separates from a valve seat of the valve body to the magnetic plunger; unpowered movable suction element is in the separated state at the time of the magnetic plunger adsorbed to compress the valve opening spring during energization, these adsorbed movable suction element and the magnetic-flop for
The lancer moves to the valve seat side, and the valve body is
In a current-closing solenoid valve that contacts to obtain a closed state,
The solenoid coil is arranged on the outer periphery of the plunger tube.
Is located in the solenoid coil
An outer housing in which a circuit is formed;
Has a large outer diameter corresponding to the inner diameter of the plunger tube.
Having a diameter portion and a small diameter portion smaller in diameter than the large diameter portion,
When the large diameter portion is not energized to the solenoid coil
And the biasing force of the valve opening spring causes the
Insert the outer box in the center axis direction of the lancer tube.
At the opposite side to the magnetic plunger,
When energizing the solenoid coil,
Due to the magnetic force acting on the movable suction element, the large-diameter portion moves forward.
It is located at the same position as the outer box in the center axis direction.
Move to the magnetic plunger side, and
The magnetic force acting on the magnetic plunger from the drawer causes the magnetic plunger to move.
The flexible plunger compresses the valve opening spring and the large diameter portion is
Before being located at the same location as the outer box in the center axis direction
The valve element is attracted to the movable suction element, and the valve body approaches the valve seat.
And acting on the valve element adjacent to the valve seat, before and after the valve
The valve body abuts the valve seat due to the suction force due to the pressure difference
It is configured so that Therefore, the valve seat
Open the valve body that is separated from the solenoid valve to the solenoid coil.
Once close to the valve seat with the magnetic force generated by
In addition, the pressure difference between the front and rear valves acting on the valve element close to the valve seat
Finally, the valve body is brought into contact with the valve seat by the suction force
Power supply to the solenoid coil.
To prevent the valve from suddenly moving until it touches the valve seat.
Thus, there is an effect of reducing the impact noise of the valve body that comes into contact with the valve seat when the power is supplied.
【図１】本発明の一実施例について、無通電開弁状態の
断面図である。FIG. 1 is a cross-sectional view of an embodiment of the present invention in a non-energized valve open state.
【図２】同上の通電直後状態の断面図である。FIG. 2 is a cross-sectional view of a state immediately after energization according to the first embodiment.
【図３】同上の通電閉弁状態の断面図である。FIG. 3 is a cross-sectional view of the above-described energized valve closed state.
【図４】従来例の断面図である。FIG. 4 is a sectional view of a conventional example.
１ 弁本体 １ｃ 弁座 ２ プランジャチューブ ３ 可動吸引子 ４ 磁性ガイド ６ 弁開ばね ７ 磁性プランジャ ８ 弁体 １１ ソレノイドコイル １２ 外凾 DESCRIPTION OF SYMBOLS 1 Valve main body 1c Valve seat 2 Plunger tube 3 Movable suction element 4 Magnetic guide 6 Valve opening spring 7 Magnetic plunger 8 Valve 11 Solenoid coil 12 Outer housing
フロントページの続き 審査官 渡邉 洋 (56)参考文献 実開 平４−62973（ＪＰ，Ｕ) 実開 昭59−72378（ＪＰ，Ｕ) 実開 平２−88076（ＪＰ，Ｕ) 実開 平２−36679（ＪＰ，Ｕ) 実開 昭63−15372（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16K 31/06 - 31/11 Continuing on the front page Examiner Hiroshi Watanabe (56) References Japanese Utility Model Hei 4 4-62973 (JP, U) Japanese Utility Model Showa 59-72378 (JP, U) Japanese Utility Model Hei 2-88076 (JP, U) Japanese Utility Model 2 −36679 (JP, U) Actually open 1988-63, 15372 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F16K 31/06-31/11
Claims (1)
囲にソレノイドコイルを設け、該プランジャチューブ内
において弁本体側に可動吸引子を設けると共に他側に磁
性ガイドを設け、該可動吸引子と該磁性ガイド間におい
て弁開ばねにより付勢された状態で磁性プランジャを収
容し、該弁本体の弁座に接離する弁体を該磁性プランジ
ャに連結し、該ソレノイドコイルに対する無通電時にお
いて離隔状態にある該可動吸引子と該磁性プランジャが
通電時において該弁開ばねを圧縮して吸着し、これら吸
着した可動吸引子と磁性プランジャとが前記弁座側に移
動して該弁座に前記弁体が当接して閉弁状態を得る通電
時閉型電磁弁において、 前記ソレノイドコイルは、前記プランジャチューブの外
周に位置して該ソレノイドコイルに対する通電により磁
気回路が形成される外凾を有しており、 前記可動吸引子は、前記プランジャチューブの内径に対
応する外径の大径部と、該大径部よりも小径の小径部と
を有しており、 前記大径部は、前記ソレノイドコイルに対する無通電時
において、前記弁開ばねによる付勢力によって、前記プ
ランジャチューブの中心軸方向において前記外凾を挟ん
で前記磁性プランジャとは反対側に位置しており、 前記ソレノイドコイルに対する通電時に、前記外凾を介
して前記可動吸引子に作用する磁力により前記大径部
が、前記中心軸方向において前記外凾と同一箇所に位置
するよう前記磁性プランジャ側に移動すると共に、前記
可動吸引子から前記磁性プランジャに作用する磁力によ
り該磁性プランジャが、前記弁開ばねを圧縮し前記大径
部が前記中心軸方向において前記外凾と同一箇所に位置
した前記可動吸引子に吸着されて、前記弁体が前記弁座
に近接し、 前記弁座に近接した前記弁体に作用する、弁前後の圧力
差による吸込力により、前記弁座に前記弁体が当接する
ように構成されている、 ことを特徴とする通電時閉型電磁弁。1. A solenoid coil is provided around a plunger tube provided on a valve body, a movable suction element is provided on the valve body side in the plunger tube, and a magnetic guide is provided on the other side. A magnetic plunger is accommodated between the guides in a state where the magnetic plunger is urged by a valve opening spring, and a valve element that comes into contact with and separates from a valve seat of the valve body is connected to the magnetic plunger, so that the solenoid coil is separated when no power is supplied to the solenoid coil. there movable suction element and magnetic plunger are adsorbed to compress the valve opening spring during energization, these intake
The mounted movable suction element and the magnetic plunger move to the valve seat side.
Energization that moves to bring the valve body into contact with the valve seat to obtain a closed state.
In the time-closed solenoid valve, the solenoid coil is provided outside the plunger tube.
Magnetized by energizing the solenoid coil
The movable suction element has an outer housing in which a pneumatic circuit is formed, and the movable suction element corresponds to an inner diameter of the plunger tube.
A large diameter portion having a corresponding outer diameter, and a small diameter portion having a smaller diameter than the large diameter portion.
The large-diameter portion is provided when the solenoid coil is not energized.
And the biasing force of the valve opening spring causes the
Insert the outer box in the center axis direction of the lancer tube.
At the opposite side of the magnetic plunger, and when energizing the solenoid coil,
The large-diameter portion by the magnetic force acting on the movable suction element
Are located at the same location as the outer casing in the center axis direction.
Move to the magnetic plunger side so that
Due to the magnetic force acting on the magnetic plunger from the movable suction element
The magnetic plunger compresses the valve opening spring, and
Is located at the same location as the outer casing in the center axis direction
Attracted to the movable suction element, and the valve body is moved to the valve seat.
Proximity to, acting on the valve body proximate to the valve seat, pressure across the valve
The valve body abuts on the valve seat due to the suction force due to the difference
A current-closing solenoid valve, characterized in that it is configured as follows .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27852392A JP3155630B2 (en) | 1992-10-16 | 1992-10-16 | Energized closed solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27852392A JP3155630B2 (en) | 1992-10-16 | 1992-10-16 | Energized closed solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06129560A JPH06129560A (en) | 1994-05-10 |
| JP3155630B2 true JP3155630B2 (en) | 2001-04-16 |
Family
ID=17598472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27852392A Expired - Fee Related JP3155630B2 (en) | 1992-10-16 | 1992-10-16 | Energized closed solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3155630B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009103238A (en) * | 2007-10-24 | 2009-05-14 | Saginomiya Seisakusho Inc | Exciting close type solenoid controlled valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0851976B1 (en) * | 1995-08-29 | 2000-01-26 | Siemens Canada Limited | Pintle-type egr valve |
| KR100420361B1 (en) * | 2001-09-07 | 2004-03-02 | 주식회사 엘지이아이 | Solnoid type working fluid valve |
-
1992
- 1992-10-16 JP JP27852392A patent/JP3155630B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009103238A (en) * | 2007-10-24 | 2009-05-14 | Saginomiya Seisakusho Inc | Exciting close type solenoid controlled valve |
| JP4510865B2 (en) * | 2007-10-24 | 2010-07-28 | 株式会社鷺宮製作所 | Closed solenoid valve when energized |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06129560A (en) | 1994-05-10 |
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