JPH0753014Y2 - solenoid valve - Google Patents

solenoid valve

Info

Publication number
JPH0753014Y2
JPH0753014Y2 JP9786691U JP9786691U JPH0753014Y2 JP H0753014 Y2 JPH0753014 Y2 JP H0753014Y2 JP 9786691 U JP9786691 U JP 9786691U JP 9786691 U JP9786691 U JP 9786691U JP H0753014 Y2 JPH0753014 Y2 JP H0753014Y2
Authority
JP
Japan
Prior art keywords
iron core
valve
movable iron
magnetic plate
bobbin
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
Application number
JP9786691U
Other languages
Japanese (ja)
Other versions
JPH0542858U (en
Inventor
生 佳 男 麻
藤 秀 治 佐
内 圭 介 島
本 拓 実 松
Original Assignee
エスエムシー株式会社
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 エスエムシー株式会社 filed Critical エスエムシー株式会社
Priority to JP9786691U priority Critical patent/JPH0753014Y2/en
Publication of JPH0542858U publication Critical patent/JPH0542858U/en
Application granted granted Critical
Publication of JPH0753014Y2 publication Critical patent/JPH0753014Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Magnetically Actuated Valves (AREA)

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】本考案は、電磁弁に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve.

【0002】[0002]

【従来の技術】コイルを巻いたボビン、該ボビンの中心
孔に装着した固定鉄心、これらを囲む磁気枠と磁気板、
ボビンと磁気板の中心孔に摺動可能に挿入した可動鉄
心、及びその復帰ばねを有するソレノイド部と、複数の
ポート、これらのポートを連通させる通路中の弁座、上
記可動鉄心の弁部側先端に形設した凹部に摺動可能に挿
入され弁ばねの付勢力により上記弁座を開閉する弁体、
及び可動鉄心の先端に取付けた上記弁体の飛出しを防止
するためのキャップを有する弁部とを備えた電磁弁は、
特に例示するまでもなく周知である。しかしながら、上
記周知の電磁弁は、可動鉄心が固定鉄心に衝突したり、
可動鉄心が磁気板に接触したりするために、これらの摩
耗が大きくてソレノイド部の寿命が短いという問題があ
る。
2. Description of the Related Art A bobbin around which a coil is wound, a fixed iron core mounted in a center hole of the bobbin, a magnetic frame and a magnetic plate surrounding the bobbin,
A movable iron core slidably inserted into the center hole of the bobbin and the magnetic plate, and a solenoid portion having a return spring thereof, a plurality of ports, a valve seat in a passage communicating these ports, a valve portion side of the movable iron core. A valve body that is slidably inserted into a recess formed at the tip and opens and closes the valve seat by the urging force of a valve spring,
And a valve section having a cap for preventing the valve body attached to the tip of the movable iron core from popping out,
It is well known without particular exemplification. However, in the known solenoid valve, the movable iron core collides with the fixed iron core,
Since the movable iron core comes into contact with the magnetic plate, there is a problem that the wear is large and the life of the solenoid is short.

【0003】[0003]

【考案が解決しようとする課題】本考案が解決しようと
する課題は、可動鉄心の先端に取付けたキャップを利用
して、鉄心相互の衝突及び可動鉄心と磁気板の接触によ
る摩耗を防止した電磁弁を提供することにある。
SUMMARY OF THE INVENTION The problem to be solved by the present invention is to use a cap attached to the tip of a movable iron core to prevent electromagnetic waves from colliding with each other and from wear caused by contact between the movable iron core and a magnetic plate. To provide a valve.

【0004】[0004]

【課題を解決するための手段】上記課題を解決するた
め、本考案は、コイルを巻いたボビン、該ボビンの中心
孔に装着した固定鉄心、これらを囲む磁気枠と磁気板、
ボビンと磁気板の中心孔に摺動可能に挿入した可動鉄
心、及びその復帰ばねを有するソレノイド部と、複数の
ポート、これらのポートを連通させる通路中の弁座、上
記可動鉄心の弁部側先端に形設した凹部に摺動可能に挿
入され弁ばねの付勢力により上記弁座を開閉する弁体、
及び可動鉄心の先端に取付けた上記弁体の飛出しを防止
するためのキャップを有する弁部とを備えた電磁弁にお
いて、上記キャップが、弾性を有する素材で形成され、
上記磁気板の中心孔に対向する案内筒部と、磁気板の弁
部側の面に対向するフランジとを備え、上記案内筒部の
外径を可動鉄心の外径より大径にするとともに、フラン
ジと磁気板間の距離を可動鉄心のストロークより小さく
したことを特徴としている。
In order to solve the above-mentioned problems, the present invention provides a bobbin around which a coil is wound, a fixed iron core mounted in a central hole of the bobbin, a magnetic frame and a magnetic plate surrounding the bobbin,
A movable iron core slidably inserted into the center hole of the bobbin and the magnetic plate, and a solenoid portion having a return spring thereof, a plurality of ports, a valve seat in a passage communicating these ports, a valve portion side of the movable iron core. A valve body that is slidably inserted into a recess formed at the tip and opens and closes the valve seat by the urging force of a valve spring,
And a valve portion having a cap for preventing the valve body attached to the tip of the movable iron core from popping out, the cap being formed of an elastic material,
A guide cylinder portion that faces the central hole of the magnetic plate, and a flange that faces the surface of the magnetic plate on the valve portion side, and the outer diameter of the guide cylinder portion is larger than the outer diameter of the movable iron core. The feature is that the distance between the flange and the magnetic plate is smaller than the stroke of the movable core.

【0005】[0005]

【作用】コイルへの通電によって固定鉄心が可動鉄心を
吸引し、コイルの通電を解除すると可動鉄心が元の状態
に復帰して、弁体が弁座を開閉する。この場合、キャッ
プの案内筒部の外径が可動鉄心の外径より大きいため
に、可動鉄心が磁気板に接触することなく摺動するの
で、これらの接触による摩耗が防止される。また、キャ
ップのフランジと磁気板間の距離が可動鉄心のストロー
クより小さいために、鉄心相互の衝突による摩耗が防止
され、かつ可動鉄心が固定鉄心に吸着されないので、復
帰の応答性がよい。さらに、可動鉄心の先端に取付けた
既存のキャップを利用してこれらの摩耗を防止するため
に、摩耗防止のための別個の部材を設ける必要がない。
[Function] When the coil is energized, the fixed iron core attracts the movable iron core. When the coil is de-energized, the movable iron core returns to its original state, and the valve body opens and closes the valve seat. In this case, since the outer diameter of the guide tube portion of the cap is larger than the outer diameter of the movable iron core, the movable iron core slides without coming into contact with the magnetic plate, and wear due to these contacts is prevented. In addition, since the distance between the flange of the cap and the magnetic plate is smaller than the stroke of the movable iron core, abrasion due to collision between the iron cores is prevented, and the movable iron core is not adsorbed to the fixed iron core, so that the return response is good. Furthermore, it is not necessary to provide a separate member for preventing wear in order to prevent these wears by utilizing the existing cap attached to the tip of the movable iron core.

【0006】[0006]

【実施例】図は本考案の実施例を示し、この電磁弁は、
ソレノイド部1と弁部2を備えている。上記ソレノイド
部1は、コイル4を巻いたボビン5、ボビン5の中心孔
に気密に装着した固定鉄心6、これらを囲む磁気枠7と
磁気板8、ボビン5と磁気板8の各中心孔に摺動可能に
挿入された可動鉄心9とその復帰ばね10を備え、可動
鉄心9先端の縮径部9aに、後記するキャップ11が嵌
着されている。一方、弁部2の弁本体13は、圧力流体
の入力ポートP、出力ポートA及び排出ポートR、これ
らのポートを連通させる通路に互いに背向させて形設し
た、ポートPとA間の供給弁座14及びポートAとR間
の排出弁座15、これらの弁座と略同心の供給弁室16
及び排出弁室17、並びに弁室16と17を連通させる
連通孔18,・・を備え、シールリング19を介してソ
レノイド部1に密に組付けられている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention.
A solenoid unit 1 and a valve unit 2 are provided. The solenoid part 1 includes a bobbin 5 around which a coil 4 is wound, a fixed iron core 6 airtightly mounted in a central hole of the bobbin 5, a magnetic frame 7 and a magnetic plate 8 surrounding these, and a central hole of each of the bobbin 5 and the magnetic plate 8. A movable iron core 9 slidably inserted and a return spring 10 for the movable iron core 9 are provided, and a cap 11 described later is fitted to a reduced diameter portion 9a at the tip of the movable iron core 9. On the other hand, the valve main body 13 of the valve portion 2 is provided with a pressure fluid input port P, an output port A, a discharge port R, and a passage connecting these ports, which are formed so as to face each other, and which is provided between the ports P and A. Valve seat 14 and exhaust valve seat 15 between ports A and R, supply valve chamber 16 substantially concentric with these valve seats
, A discharge valve chamber 17, and a communication hole 18 for communicating the valve chambers 16 and 17 with each other, and they are tightly assembled to the solenoid portion 1 via a seal ring 19.

【0007】図2に詳細を示す上記キャップ11は、磁
気板8の中心孔に対向する案内筒部21、磁気板8の弁
部2側の面に対向するフランジ22、上記縮径部9aの
先端に形設した凹部25の開口周囲を覆う係止部23、
及び案内筒部21とフランジ22の磁気板との対向面に
形設した通気溝24,24を備え、合成樹脂等の弾性を
有する素材によって一体に形成されており、案内筒部2
1の外径は可動鉄心9の外径より僅かに大きく、フラン
ジ22と磁気板8間の距離は、固定鉄心6と可動鉄心9
間の距離、換言すれば可動鉄心9のストロークより僅か
に小さくされている。
The cap 11, which is shown in detail in FIG. 2, includes a guide cylinder portion 21 facing the central hole of the magnetic plate 8, a flange 22 facing the surface of the magnetic plate 8 on the valve portion 2 side, and the reduced diameter portion 9a. A locking portion 23 that covers the periphery of the opening of the recess 25 formed at the tip,
Further, the guide tube portion 21 and the flange 22 are provided with ventilation grooves 24, 24 formed on the surface facing the magnetic plate, and are integrally formed of an elastic material such as synthetic resin.
The outer diameter of 1 is slightly larger than the outer diameter of the movable iron core 9, and the distance between the flange 22 and the magnetic plate 8 is equal to the fixed iron core 6 and the movable iron core 9.
The distance between them, in other words, slightly smaller than the stroke of the movable iron core 9.

【0008】供給弁座14を開閉する供給弁体27は、
可動鉄心9の凹部25に摺動可動に挿入され、該凹部2
5の底面との間に縮設された第1弁ばね28によって供
給弁座14を閉鎖する方向に付勢され、周縁部分が上記
係止部23に当接して凹部25からの飛出しが防止され
ている。また、排出弁座15を開閉する排出弁体29
は、ばね座30との間に縮設した第2弁ばね31によっ
て排出弁座15を閉鎖する方向に付勢され、排出弁体2
9を駆動する押圧部材32の先端は、連通孔18,・・
を通ってキャップ11の係止部23に当接している。図
中の符号34は押圧により供給弁座14を開放させる手
動操作釦、35はコイル4に給電するための配線基板
で、ソレノイドの制御に必要な抵抗器、逆起電力防止器
等の電気・電子部品36,・・が取付けられている。
The supply valve body 27 for opening and closing the supply valve seat 14 is
The movable iron core 9 is slidably inserted into the concave portion 25, and the concave portion 2
The supply valve seat 14 is urged by a first valve spring 28 that is contracted between the bottom surface of the valve 5 and the bottom surface of the valve 5, and the peripheral edge portion abuts the locking portion 23 to prevent the protrusion from the recess 25. Has been done. In addition, a discharge valve body 29 that opens and closes the discharge valve seat 15
Is urged in the direction of closing the discharge valve seat 15 by the second valve spring 31 that is compressed between the discharge valve body 2 and the spring seat 30.
The tip of the pressing member 32 that drives 9 has a communication hole 18, ...
It is in contact with the locking portion 23 of the cap 11 through the through. Reference numeral 34 in the figure is a manual operation button for opening the supply valve seat 14 by pressing, 35 is a wiring board for supplying power to the coil 4, and is an electric / electrical device such as a resistor and a back electromotive force preventer necessary for controlling the solenoid. Electronic components 36, ... Are attached.

【0009】上記実施例は、コイル4が非通電のとき
は、第1弁ばね28の付勢力によって供給弁体27が供
給弁座14を閉鎖し、押圧部材32で押圧された排出弁
体29が排出弁座15を開放するので、ポートAとRが
連通している(図1左半分参照)。コイル4に通電する
と、固定鉄心6が復帰ばね10の付勢力に抗して可動鉄
心9を吸引するため、供給弁体27が供給弁座14を開
放するとともに、第2弁ばね31の付勢力によって排出
弁体29が排出弁座15を閉鎖するので、ポートPとA
が連通する(図1右半分参照)。
In the above embodiment, when the coil 4 is not energized, the supply valve body 27 closes the supply valve seat 14 by the urging force of the first valve spring 28, and the discharge valve body 29 is pressed by the pressing member 32. Opens the discharge valve seat 15 so that the ports A and R communicate with each other (see the left half of FIG. 1). When the coil 4 is energized, the fixed iron core 6 attracts the movable iron core 9 against the urging force of the return spring 10, so that the supply valve body 27 opens the supply valve seat 14 and the urging force of the second valve spring 31. Since the discharge valve element 29 closes the discharge valve seat 15 by this, the ports P and A
Communicate (see the right half of Fig. 1).

【0010】この場合、キャップ11の案内筒部21の
外径が可動鉄心9の外径より僅かに大きいために、可動
鉄心9は案内筒部21に案内されて磁気板8に接触する
ことなく摺動する。また、キャップ11のフランジ22
と磁気板8間の距離が可動鉄心9のストロークより僅か
に小さいために、フランジ22と磁気板8が当接して可
動鉄心9は固定鉄心6に衝突しない。したがって、可動
鉄心9と固定鉄心6及び磁気板8との衝突及び接触によ
るこれらの摩耗を防止できる。
In this case, since the outer diameter of the guide tubular portion 21 of the cap 11 is slightly larger than the outer diameter of the movable iron core 9, the movable iron core 9 is guided by the guide tubular portion 21 and does not come into contact with the magnetic plate 8. Slide. Also, the flange 22 of the cap 11
Since the distance between the magnetic core 8 and the magnetic core 8 is slightly smaller than the stroke of the movable core 9, the flange 22 and the magnetic plate 8 come into contact with each other so that the movable core 9 does not collide with the fixed core 6. Therefore, it is possible to prevent the wear of the movable iron core 9 and the fixed iron core 6 and the magnetic plate 8 due to collision and contact thereof.

【0011】コイル4への通電を解除すると、復帰ばね
10の付勢力により、可動鉄心9が案内筒部21に案内
されて磁気板8に接触することなく元の状態に復帰す
る。この場合、可動鉄心9が固定鉄心6に吸着されない
ために復帰の応答性がよい。
When the coil 4 is de-energized, the movable core 9 is guided by the guide cylinder portion 21 by the urging force of the return spring 10 and returns to its original state without coming into contact with the magnetic plate 8. In this case, since the movable iron core 9 is not adsorbed to the fixed iron core 6, the return response is good.

【0012】なお、上記実施例は3ポート弁であるが、
本考案の電磁弁はこれに限定されるものではなく、複数
のポートを有するものであればよい。
Although the above embodiment is a 3-port valve,
The solenoid valve of the present invention is not limited to this, and may be any one having a plurality of ports.

【0013】[0013]

【考案の効果】本考案の電磁弁は、キャップによって可
動鉄心と磁気板との接触及び鉄心相互の衝突を防止する
ので、これらの摩耗が小さくて電磁弁の寿命を長くする
ことができ、しかも可動鉄心復帰時の応答性がよい。ま
た、既存のキャップによってソレノイド部の摩耗を防止
することにより、摩耗防止のために別個の部品を設ける
必要がないので、電磁弁の構成を簡単にすることができ
る。
In the solenoid valve of the present invention, the cap prevents contact between the movable iron core and the magnetic plate and collision of the iron cores with each other, so that wear of these is small and the life of the solenoid valve can be extended. Good responsiveness when the movable core returns. Further, since the existing cap prevents abrasion of the solenoid portion, it is not necessary to provide a separate component for preventing abrasion, so that the structure of the solenoid valve can be simplified.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例の縦断正面図である。FIG. 1 is a vertical sectional front view of an embodiment.

【図2】キャップの斜視図である。FIG. 2 is a perspective view of a cap.

【符号の説明】[Explanation of symbols]

1 ソレノイド部 2 弁部 4 コイル 5 ボビン 6 固定鉄心 7 磁気枠 8 磁気板 9 可動鉄心 10 復帰ばね 11 キャッ
プ 14 供給弁座 21 案内筒
部 22 フランジ 27 供給弁
体 28 第1弁ばね P,A,R
ポート
1 Solenoid part 2 Valve part 4 Coil 5 Bobbin 6 Fixed iron core 7 Magnetic frame 8 Magnetic plate 9 Movable iron core 10 Return spring 11 Cap 14 Supply valve seat 21 Guide cylinder part 22 Flange 27 Supply valve element 28 First valve spring P, A, R
port

───────────────────────────────────────────────────── フロントページの続き (72)考案者 松 本 拓 実 茨城県筑波郡谷和原村絹の台4−2−2 エスエムシー株式会社筑波技術センター内 (56)参考文献 実開 平2−143580(JP,U) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takumi Matsumoto 4-2-2 Kinunodai, Taniwahara-mura, Tsukuba-gun, Ibaraki SMC Corporation Tsukuba Technical Center (56) References Mitsuihei 2-143580 (JP, U)

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 コイルを巻いたボビン、該ボビンの中心
孔に装着した固定鉄心、これらを囲む磁気枠と磁気板、
ボビンと磁気板の中心孔に摺動可能に挿入した可動鉄
心、及びその復帰ばねを有するソレノイド部と、複数の
ポート、これらのポートを連通させる通路中の弁座、上
記可動鉄心の弁部側先端に形設した凹部に摺動可能に挿
入され弁ばねの付勢力により上記弁座を開閉する弁体、
及び可動鉄心の先端に取付けた上記弁体の飛出しを防止
するためのキャップを有する弁部とを備えた電磁弁にお
いて、 上記キャップが、弾性を有する素材で形成され、上記磁
気板の中心孔に対向する案内筒部と、磁気板の弁部側の
面に対向するフランジとを備え、上記案内筒部の外径を
可動鉄心の外径より大径にするとともに、フランジと磁
気板間の距離を可動鉄心のストロークより小さくした、
ことを特徴とする電磁弁。
1. A bobbin around which a coil is wound, a fixed iron core mounted in a center hole of the bobbin, a magnetic frame and a magnetic plate surrounding the core,
A movable iron core slidably inserted into the center hole of the bobbin and the magnetic plate, and a solenoid portion having a return spring thereof, a plurality of ports, a valve seat in a passage communicating these ports, a valve portion side of the movable iron core. A valve body that is slidably inserted into a recess formed at the tip and opens and closes the valve seat by the urging force of a valve spring,
And a valve portion attached to the tip of the movable iron core and having a cap for preventing the valve body from popping out, the cap being formed of an elastic material, and having a central hole of the magnetic plate. And a flange opposed to the valve plate side surface of the magnetic plate, the outer diameter of the guide cylinder is larger than the outer diameter of the movable iron core, and The distance is smaller than the stroke of the movable iron core,
This is a solenoid valve.
JP9786691U 1991-11-01 1991-11-01 solenoid valve Expired - Lifetime JPH0753014Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9786691U JPH0753014Y2 (en) 1991-11-01 1991-11-01 solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9786691U JPH0753014Y2 (en) 1991-11-01 1991-11-01 solenoid valve

Publications (2)

Publication Number Publication Date
JPH0542858U JPH0542858U (en) 1993-06-11
JPH0753014Y2 true JPH0753014Y2 (en) 1995-12-06

Family

ID=14203678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9786691U Expired - Lifetime JPH0753014Y2 (en) 1991-11-01 1991-11-01 solenoid valve

Country Status (1)

Country Link
JP (1) JPH0753014Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3664631B2 (en) * 2000-03-17 2005-06-29 Smc株式会社 solenoid valve

Also Published As

Publication number Publication date
JPH0542858U (en) 1993-06-11

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