JPS58214084A - Solenoid valve - Google Patents

Solenoid valve

Info

Publication number
JPS58214084A
JPS58214084A JP9801582A JP9801582A JPS58214084A JP S58214084 A JPS58214084 A JP S58214084A JP 9801582 A JP9801582 A JP 9801582A JP 9801582 A JP9801582 A JP 9801582A JP S58214084 A JPS58214084 A JP S58214084A
Authority
JP
Japan
Prior art keywords
magnetic
iron core
plate
fixed iron
fluid passage
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
JP9801582A
Other languages
Japanese (ja)
Inventor
Kozo Matsuda
松田 耕三
Kiyotoshi Yano
矢野 清俊
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.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP9801582A priority Critical patent/JPS58214084A/en
Publication of JPS58214084A publication Critical patent/JPS58214084A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE:To make the durability of a solenoid valve satisfactory with respect to vibration, impact, etc., by holding a member corresponding to a movable core with the use of a thin plate-like spring member which are surely secured. CONSTITUTION:A disc-like magnetic material plate 40 which is opposed to a magnetic pole face that is the end face of a stationary core 31, for serving as a movable core, is attached to the center section 39b of a thin-plate like spring 39 which is also opposed to the magnetic pole face. A similar disk-like first valve member 41 made of a nonmagnetic material is integrally incorporated with the magnetic material member 40. The magnetic material member 40 and the valve member 41 which are doubly jointed together form an attracted member which is attracted when the stationary core 31 is magnetically energized, and a plurality of openings 42 serving as fluid passages, are formed in the attracted member.

Description

【発明の詳細な説明】 この発明は、励磁電流制御によって空気等の流体通路を
開閉し、または2つの流体通路を切換え選択する電磁弁
に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solenoid valve that opens and closes a fluid passage for air or the like or switches and selects two fluid passages by controlling an excitation current.

この種の電磁弁は、例えばEGR制御用として、負圧と
大気圧とを切換えるために使用されているもので、従来
にあっては例えば第1図に示すように構成している。す
なわち、中心軸に沿って流体通路11を形成した円筒状
の固定鉄芯12を備えるもので、上記流体通路11は第
1の入力ポートとなる導管13によって図示されない例
えは負圧源に接続される。固定鉄芯12は、合成樹脂で
構成された円筒状ガイド体14の中空部に挿入設定され
るもので、このガイド体14の一部で?ビン14&を形
成し、このデビン14aに対して励磁コイル15を巻装
する。固定鉄芯12の磁極面となる先端部には、ガイド
体14の中空部によりて流体室J4bが形成されるもの
で、この流体室14b内には磁性材料でなる可動鉄芯1
6を設定する。そして、この可動鉄芯16と固定鉄芯1
2との間に圧縮はね17を介在させ、固定鉄芯12の非
励磁状態で、可動鉄芯16が固定鉄芯12の磁極面から
離反設定されるようにする。上記ガイド体14内の流体
室14bには、大気圧に連通される第2の入力l−トと
なる導管18の先端が導入され、この導管18の先端に
は可動鉄芯16が圧縮ばね16の力によって押し付けら
れ、可動鉄芯16の一体の弁部材19で導管18の流体
通路20を閉じるようにしてなる。また可動鉄芯16に
は他の弁部材21が設けられ、固定鉄芯12の励磁状態
で可動鉄芯16がばね17に抗して吸引駆動された時に
、弁部材21で流体通路11を閉じるようにしてなる。
This type of electromagnetic valve is used for switching between negative pressure and atmospheric pressure, for example, for EGR control, and is conventionally configured as shown in FIG. 1, for example. That is, it is equipped with a cylindrical fixed iron core 12 with a fluid passage 11 formed along the central axis, and the fluid passage 11 is connected to a negative pressure source (not shown) through a conduit 13 serving as a first input port. Ru. The fixed iron core 12 is inserted into a hollow part of a cylindrical guide body 14 made of synthetic resin, and is a part of this guide body 14? A bin 14& is formed, and an excitation coil 15 is wound around the bin 14a. A fluid chamber J4b is formed by the hollow part of the guide body 14 at the tip of the fixed iron core 12 that becomes the magnetic pole surface, and the movable iron core 1 made of a magnetic material is inside this fluid chamber 14b.
Set 6. Then, this movable iron core 16 and the fixed iron core 1
A compression spring 17 is interposed between the movable iron core 16 and the fixed iron core 12 so that the movable iron core 16 is set away from the magnetic pole surface of the fixed iron core 12 when the fixed iron core 12 is in a non-excited state. A tip of a conduit 18 that serves as a second input port communicated with atmospheric pressure is introduced into the fluid chamber 14b in the guide body 14, and a movable iron core 16 is connected to a compression spring 16 at the tip of the conduit 18. The valve member 19 of the movable iron core 16 closes the fluid passage 20 of the conduit 18 by the force of the movable iron core 16 . Further, the movable iron core 16 is provided with another valve member 21, and when the movable iron core 16 is attracted and driven against the spring 17 while the fixed iron core 12 is energized, the valve member 21 closes the fluid passage 11. That's how it happens.

そして、上記流体室14bには出力導管22の流体通路
23が開口されている。
A fluid passage 23 of an output conduit 22 is opened in the fluid chamber 14b.

このよう表電磁弁において、励磁コイル15に対する励
磁電流による弁切換動作を応答性良く円滑に行なわせる
ためには、固定鉄芯12と可動鉄芯16との間隙を正確
に設定することである。この間隙は、固定鉄芯12およ
び可動鉄芯16を同軸的に配置設定する合成樹脂よりな
るガイド体14によって決定される。
In such a front electromagnetic valve, in order to smoothly perform the valve switching operation by the excitation current to the excitation coil 15 with good responsiveness, it is necessary to accurately set the gap between the fixed iron core 12 and the movable iron core 16. This gap is determined by a guide body 14 made of synthetic resin that arranges and sets the fixed iron core 12 and the movable iron core 16 coaxially.

しかし、このよりなガイド体14を合成樹脂で成形加工
した場合には、その長さを安定して高精度に設定するこ
とが困難であり、実際には組み立て時において、ガイド
体14のがビン14%部と固定鉄芯12のフランジ部1
2hとの間にシム24を介在させ、固定鉄芯12と可動
鉄芯16との間隙を微調整し設定する必要がある。すな
わち、組み立て作業性の悪くなるものであり、安定した
高信頼度を要求することが困難となる。
However, when this flexible guide body 14 is molded from synthetic resin, it is difficult to set its length stably and with high precision, and in reality, during assembly, the guide body 14 is 14% part and flange part 1 of fixed iron core 12
2h, and it is necessary to finely adjust and set the gap between the fixed iron core 12 and the movable iron core 16. In other words, the assembly workability deteriorates, and it becomes difficult to require stable and high reliability.

また、このような電磁弁にあっては磁気回路を構成する
ために、ガイド体14に対して可動鉄芯16の外側面に
近接するように磁性体25を埋め込み設定している。し
かし、この場合も磁性体25と可動鉄芯16との間隙を
樹脂の厚み以下にすることができず、磁気効率を充分高
い状態とすることが困難である。
Further, in such a solenoid valve, a magnetic body 25 is embedded in the guide body 14 so as to be close to the outer surface of the movable iron core 16 in order to configure a magnetic circuit. However, in this case as well, the gap between the magnetic body 25 and the movable iron core 16 cannot be made smaller than the thickness of the resin, making it difficult to maintain sufficiently high magnetic efficiency.

また、合成樹脂で成形加工されたガイド体1,4の流体
室14b内に可動鉄芯16を移動自在に収納する構造で
あるため、ある程度以上のエアギヤラグが要求され、ま
た励磁コイル16の大型化が要求されて重量が増大する
。したがって、比較的大型化し重量も大きなものと々る
。さらに可動鉄芯16が遊びのある状態であるので、振
動、衝撃に対して充分強いものとすることが困難となり
、例えば自動車に搭載されるエンジン制御系に使用する
場合に難点がある。
In addition, since the movable iron core 16 is movably housed in the fluid chamber 14b of the guide bodies 1 and 4 molded from synthetic resin, an air gear lug of a certain size or more is required, and the excitation coil 16 is increased in size. is required, which increases weight. Therefore, it becomes relatively large and heavy. Furthermore, since the movable iron core 16 has some play, it is difficult to make it sufficiently strong against vibrations and shocks, which is a problem when used, for example, in an engine control system installed in a car.

この発明は上記のような点に鑑みなされたもので、組み
立てを簡易化して例えは間隙調整等の作業を不要として
高信頼性、応答性良好なものとすると共に、小型軽量化
して耐振性に優れたものとする電磁弁を提供しようとす
るものである。
This invention was made in view of the above points, and it not only simplifies assembly and eliminates work such as gap adjustment, resulting in high reliability and good responsiveness, but also reduces size and weight and improves vibration resistance. The present invention aims to provide an excellent solenoid valve.

すなわち、この発明に係る電磁弁は、励磁制御され固定
鉄芯の外周に磁気回路を構成する磁性体円筒を設け、こ
の磁性体円筒で固定の鉄芯の端面に対向するように薄肉
板状のばね体を設け、このばね体に固定鉄芯に間隙をも
って対向する磁性体を一体的に設けて、固定の鉄芯の励
磁で吸引されるようにし、この吸引状態ではね体に一体
的に設けられる弁部材で流体通路が選択的に閉じられる
ようにしたものである。
That is, in the solenoid valve according to the present invention, a magnetic cylinder constituting a magnetic circuit is provided on the outer periphery of a fixed iron core that is controlled by excitation, and a thin plate-like cylinder is provided in the magnetic cylinder so as to face the end face of the fixed iron core. A spring body is provided, and a magnetic body facing the fixed iron core with a gap is integrally provided on the spring body so that it is attracted by the excitation of the fixed iron core. The fluid passage is selectively closed by the valve member.

以下図面を参照してこの発明の一実施例を説明する。第
2図はその断面構造を示したもので、円柱状の固定の鉄
芯31を備える。この鉄芯31の中心軸部には第1の流
体通路32が形成されており、この第1の流体通路32
は鉄芯31に一体にされた導出管33に連通されている
。そして、この固定の鉄芯31に対しては、一体内に円
板状にした7ランー)34が設けられている。
An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows its cross-sectional structure, which includes a cylindrical fixed iron core 31. A first fluid passage 32 is formed in the central axis of this iron core 31;
is communicated with an outlet pipe 33 integrated with the iron core 31. For this fixed iron core 31, seven disc-shaped runs 34 are provided within one body.

このような固定の鉄芯31の外周部には、フラング34
に接するようにして、非磁性材料でなるポビン35が設
けられ、このがビン35には励磁コイル36を巻装し、
図では示されない電源よシ励磁電流を供給することによ
って、固定の鉄芯31を励磁制御するように構成する。
A flang 34 is attached to the outer periphery of such a fixed iron core 31.
A pobin 35 made of a non-magnetic material is provided so as to be in contact with the pobin 35, and an excitation coil 36 is wound around the pobin 35.
The fixed iron core 31 is configured to be excitation-controlled by supplying an excitation current from a power source (not shown).

そして、このコイル36を巻装したがビン35の外周部
には、一端を7ランジ34に当てるようにして磁性筒状
体37を設け、この筒状体37の外周には合成樹脂等で
なる円筒状のケース38が設けられる。磁性筒状体37
は、段部37mと で径大部を径小部に区画して構成し、その境界段部でポ
ビン35を保持する。そして、その径小部は?ビン35
の端面から立上9、ケース38の端面に当てられ、この
ケース38の端面と磁性筒状体37の端面との間で、薄
板状のはね体39の外周縁を挾持する。
A magnetic cylindrical body 37 is provided on the outer periphery of the bottle 35 around which the coil 36 is wound, with one end touching the seven flange 34, and the outer periphery of the cylindrical body 37 is made of synthetic resin or the like. A cylindrical case 38 is provided. Magnetic cylindrical body 37
The large-diameter portion is divided into a small-diameter portion by a stepped portion 37m, and the pobbin 35 is held at the boundary step. And what about that small diameter part? bottle 35
9 is applied to the end surface of the case 38 , and the outer peripheral edge of the thin plate-shaped spring body 39 is sandwiched between the end surface of the case 38 and the end surface of the magnetic cylindrical body 37 .

このばね体39は、第3図に取シ出して示すように環状
の外周部39aと、小円板状の中央部39bと、この両
者を結合する複数の折曲した細片でなるたわみ部39c
とからなり、この複数のたわみ部39c相互間に流体通
路となる複数の開口39dが形成される構造となる。そ
して、外周部39息が全周にわたシ、磁性筒状体37と
ケース38との間に挾み込まれ、固定保持されるもので
ある。この場合、ばね体39の外周部39hは!全周に
わたり挾み込まれ固定保持する必要は特に無く、2個所
以上の複数個所で固定保持されるようにしてもよいこと
はもちろんである。
The spring body 39, as shown in FIG. 39c
The structure is such that a plurality of openings 39d serving as fluid passages are formed between the plurality of bending portions 39c. The outer circumferential portion 39 is inserted all around the circumference between the magnetic cylindrical body 37 and the case 38, and is held fixed. In this case, the outer peripheral portion 39h of the spring body 39 is! It is not particularly necessary to be clamped and fixedly held over the entire circumference, and it goes without saying that it may be fixedly held at two or more locations.

薄板状ばね体39は、前記固定の鉄芯31の端面となる
磁極面に中央部39bが対向するようになるものであシ
、この中央部39bには上記磁極面に対向して円板状磁
性体板40が取シ付けられる。この磁性体板40には、
第4図に取り出して示すように同じく円板状にした非磁
性材料からなるgtの弁部材41が一体に接合して設け
られるもので、この2重に接合された磁性体板40およ
び弁部材4ノは固定の鉄芯31の励磁で吸引される吸引
部材とされ、この吸引部材には流体通路となる複数の開
口42が形成されている。
The thin plate-shaped spring body 39 has a central portion 39b facing the magnetic pole surface which is the end surface of the fixed iron core 31, and a disk-shaped spring body 39 in the central portion 39b facing the magnetic pole surface. A magnetic plate 40 is attached. This magnetic plate 40 has
As shown in FIG. 4, a gt valve member 41 made of a non-magnetic material and also shaped like a disc is integrally joined, and the double-jointed magnetic plate 40 and valve member 4 is a suction member that is attracted by the excitation of a fixed iron core 31, and this suction member is formed with a plurality of openings 42 that serve as fluid passages.

また、ばね体39の中央部39bの上記吸引部材の反対
側の面には、金属板43を介して非磁性体でなる第2の
弁部材44が一体的に取9付けられる。この場合、磁性
体板4oおよび金、載板43は、ばね体39を挾んで一
体的に溶接等によって結合される。
Further, a second valve member 44 made of a non-magnetic material is integrally attached to the surface of the central portion 39b of the spring body 39 on the opposite side of the suction member through a metal plate 43. In this case, the magnetic plate 4o and the gold mounting plate 43 are integrally coupled by welding or the like with the spring body 39 in between.

ここで、磁性体板40は可動鉄芯として作用するもので
、例えは低炭素鋼で構成され、さらに磁気特性を良くす
る場合にはFe−Ni系合金等の適当な磁性材料を選定
して構成する。また、金属板43はばね体39に弁部材
44が直接的に接合できる場合には特に必要としないも
のであり、その材質も性能上で支障がなければ特にこだ
わる必要はなく、非金属により構成してもよい。要する
にばね体39に対して弁部材44が一体的に確実に接合
できるようにすればよい。
Here, the magnetic plate 40 acts as a movable iron core, and is made of, for example, low carbon steel.If the magnetic properties are to be further improved, an appropriate magnetic material such as Fe-Ni alloy is selected. Configure. Further, the metal plate 43 is not particularly required when the valve member 44 can be directly joined to the spring body 39, and there is no need to be particular about its material as long as it does not interfere with performance, and it may be made of a non-metal. You may. In short, it is only necessary to ensure that the valve member 44 is integrally joined to the spring body 39.

さらに第1および第一2の弁部材41.44は例えばゴ
ム等の弾性体で構成すればよいものであり、特にシール
する必要のない時は弾性体である必要はない。
Further, the first and second valve members 41, 44 may be made of an elastic material such as rubber, and do not need to be made of an elastic material especially when there is no need for sealing.

ケース38は、ばね体39の存在する部分で流体室45
を形成するもので、この流体室45には、上記第2の弁
部材44に対向するように第2の流体通路46を形成し
た導管42が設けられる。この導管47の流体室45内
に対する開口端面は弁座として作用するもので、この弁
座部にはばね体39のばね力で第2の弁部材44が常時
圧接するように設定される。したがって、この導管47
は薄板状はね体39の停止体としても作用し、はね体3
9と一体にした磁性体板40と固定の鉄芯31の磁極面
との距離δlを設定するようになる。
The case 38 has a fluid chamber 45 in a portion where the spring body 39 is present.
A conduit 42 in which a second fluid passage 46 is formed is provided in the fluid chamber 45 so as to face the second valve member 44 . The opening end surface of the conduit 47 into the fluid chamber 45 acts as a valve seat, and the second valve member 44 is set to be in constant pressure contact with this valve seat by the spring force of the spring body 39. Therefore, this conduit 47
also acts as a stop for the thin plate-like spring body 39, and the spring body 3
The distance δl between the magnetic plate 40 integrated with the magnetic plate 9 and the magnetic pole surface of the fixed iron core 31 is set.

上記流体室45には−1さらに第3の流体通路48を形
成した導管49が連通されている。
A conduit 49 in which a third fluid passage 48 is further communicated with the fluid chamber 45 .

上記のように構成される電磁弁において、励磁コイル3
6に励磁電流の供給されない非励磁状態においては、図
に示すように@2の弁部材44が第2の流体通路46を
閉じ、第1の流体通路32が流体室45を介して第3の
流体通路48に接続される状態となる。この場合、第1
の弁部材41の厚さをδ2とすると、この弁部材4ノと
第1の流体通路32の開口面となる磁極面との間隙部δ
3を通って流体が流れるもので、この間隙δ3は適正な
流体流量が得られる状態に設定する。
In the solenoid valve configured as described above, the exciting coil 3
In the non-excited state where no excitation current is supplied to 6, as shown in the figure, the valve member 44 of @2 closes the second fluid passage 46, and the first fluid passage 32 closes the third fluid passage 32 via the fluid chamber 45. It is now connected to the fluid passage 48. In this case, the first
Assuming that the thickness of the valve member 41 is δ2, the gap between the valve member 4 and the magnetic pole surface, which is the opening surface of the first fluid passage 32, is δ.
The fluid flows through the gap δ3, and the gap δ3 is set to a state where an appropriate fluid flow rate can be obtained.

これに対して、励磁コイル36に励磁電流を供給すると
、同定の鉄芯31は磁性体板41をばね板39のばね力
に抗して吸引駆動され、第1の弁部材4ノは第1の流体
通路32の開口部を封するようになる。この時、第2の
弁部材44は第2の流体通路46の開口に対応する弁座
から離れ、したがって、この第2の流体通路46と第3
の流体通路48とは、流体室45を介して連通されるよ
うになる。
On the other hand, when an excitation current is supplied to the excitation coil 36, the identified iron core 31 attracts and drives the magnetic plate 41 against the spring force of the spring plate 39, and the first valve member 4 The opening of the fluid passage 32 is sealed. At this time, the second valve member 44 is separated from the valve seat corresponding to the opening of the second fluid passage 46, and therefore the second fluid passage 46 and the third
The fluid passage 48 is communicated with the fluid chamber 45 through the fluid chamber 45.

ここで、磁性体板40と磁性筒状体37との間には磁気
回路が形成されるようになるものであり、磁性体板40
と磁性筒状体37との間には、小間隙δが形成されるよ
うにする。この間隙δは磁気損失が大きくなら碌いよう
にできるだけ小さくすることが好ましいものであるが、
弁部材41と共に磁性体板40が円滑に移動し得る程度
に以設定する必要がある。同様に、間隙δ3および第1
の弁部材41の厚さδ2は、鉄芯31の磁極が磁性体板
40に作用する磁気吸引力が適正となる間隙δ1が設定
されることと、前述したように適正な流体通路が得られ
ることの両条件が満足される範囲に設定する。
Here, a magnetic circuit is formed between the magnetic plate 40 and the magnetic cylindrical body 37, and the magnetic plate 40
A small gap δ is formed between the magnetic cylinder 37 and the magnetic cylindrical body 37. If the magnetic loss is large, it is preferable to make this gap δ as small as possible.
It is necessary to set the value so that the magnetic plate 40 can move smoothly together with the valve member 41. Similarly, the gap δ3 and the first
The thickness δ2 of the valve member 41 is such that the gap δ1 is set such that the magnetic attraction force exerted by the magnetic poles of the iron core 31 on the magnetic plate 40 is appropriate, and an appropriate fluid passage is obtained as described above. Set within a range that satisfies both conditions.

上記のような励磁状態から励磁電流が断たれた時は、ば
ね体39のばね力が流体圧力に打ち勝って、第1の弁部
材41を鉄芯31から離反するように作用する。このよ
うな状態で、磁性体板40および固定の鉄芯31に磁気
が残留していると、上記のような離反動作は瞬間的に起
らず、流体の流れ方向の切換えは円滑に行なわれない。
When the excitation current is cut off from the above excitation state, the spring force of the spring body 39 overcomes the fluid pressure and acts to separate the first valve member 41 from the iron core 31. In such a state, if magnetism remains in the magnetic plate 40 and the fixed iron core 31, the above-described separation action will not occur instantaneously, and the fluid flow direction will not be switched smoothly. do not have.

このような応答性を良好にするためには、非磁性体でな
る第1の弁座部41の厚さa=を適当に大きくするか、
磁性体板40および鉄芯31の材料に保持力の小さなも
のを選定する等の工夫が必要である。特に、流体が第2
の流体通路46と第3の流体通路48との間を流れるだ
けの構造の場合は、流体通路32を閉じる必要のないも
のであるため、第1の弁部材41に相当する非磁性材料
を任意に選ぶことができる。
In order to improve such responsiveness, the thickness a of the first valve seat portion 41 made of a non-magnetic material should be appropriately increased, or
It is necessary to take measures such as selecting materials for the magnetic plate 40 and the iron core 31 that have a small holding force. In particular, the fluid
In the case of a structure in which the fluid flows only between the fluid passage 46 and the third fluid passage 48, there is no need to close the fluid passage 32, so the non-magnetic material corresponding to the first valve member 41 can be made of any material. You can choose to.

また、逆に磁性体板40と鉄芯3ノとの間の流体流量確
保のための間隙δ3と、第1の弁部材41の厚みδ2を
必要最小限にすれば、距離8重による磁気漏洩も最小限
とすることができる。この距離δ1は、筒状磁性体37
の長さ、固定の鉄芯31の長さ、磁性体板40の厚さ、
流体通路46を有する導管47の長さ等で決まるもので
あるが、これらの寸法を精度良くすることによって距離
δ1は安定して設定され、従来のようにシム等を介在さ
せる調整作業は不要とすることができる。
Conversely, if the gap δ3 between the magnetic plate 40 and the iron core 3 to ensure the fluid flow rate and the thickness δ2 of the first valve member 41 are minimized, magnetic leakage due to the 8-fold distance can be achieved. can also be minimized. This distance δ1 is the cylindrical magnetic body 37
, the length of the fixed iron core 31, the thickness of the magnetic plate 40,
This is determined by the length of the conduit 47 having the fluid passage 46, etc., but by making these dimensions accurate, the distance δ1 can be stably set, eliminating the need for adjustment work using shims etc. as in the past. can do.

特に、この電磁弁の場合、各磁性体による構造物は金属
体で構成できるものであるため、精密加工が容易であり
、寸法安定性が良好である。
In particular, in the case of this electromagnetic valve, since each magnetic body structure can be constructed from a metal body, precision machining is easy and dimensional stability is good.

特に可動鉄芯となる磁性体板40の外周の間隙δは最小
にできるものであるため、磁気効率の良いものであり、
小さなアンペアターンによって必要な磁気吸引力が容易
に得ることができ、小屋軽量化にも効果的なものとする
ことができる。そして、稼動部が薄板状のばね体で構成
されるものであるため、組み立てが簡単であるばかりか
、充分に小型軽量化され、作動時の衝撃音も充分に小さ
なものとすることができる。
In particular, the gap δ around the outer periphery of the magnetic plate 40 serving as the movable iron core can be minimized, so magnetic efficiency is good.
The necessary magnetic attraction force can be easily obtained with a small ampere turn, and the shed can be effectively reduced in weight. Further, since the moving part is composed of a thin plate-like spring body, it is not only easy to assemble, but also sufficiently small and lightweight, and the impact noise during operation can be made sufficiently small.

上記実施例では磁性筒状体37と固定鉄芯31部とを別
体に構成したが、これは第5図に示すように磁性体板体
を成形加工して一体に構成するようにしてもよい。すな
わち、固定の鉄芯31を磁性体薄板を有底円筒状に成形
して構成し、その底部に流体通路32を形成するもので
あり、この鉄芯3ノは磁性筒状体37と同じく磁性板薄
板によるフランツ34を介して一体的に構成するもので
おる。この場合、鉄芯31に相当する円柱部を肉厚に構
成しそ、もよいものであり、また全体を均一薄肉状に構
成すれ汀、さらに効果的に軽量化がはかれる。第5図に
おいて第2図と同一構成部分は同符号を付してその説明
は省略する。
In the above embodiment, the magnetic cylindrical body 37 and the fixed iron core 31 are constructed separately, but it is also possible to construct them integrally by molding a magnetic plate as shown in FIG. good. That is, the fixed iron core 31 is formed by molding a magnetic thin plate into a cylindrical shape with a bottom, and a fluid passage 32 is formed at the bottom of the iron core 31. Like the magnetic cylindrical body 37, this iron core 3 is made of magnetic material. It is constructed integrally through a flange 34 made of a thin plate. In this case, it is preferable to make the cylindrical part corresponding to the iron core 31 thick, and it is also possible to make the whole part uniformly thin, which can further effectively reduce the weight. In FIG. 5, the same components as those in FIG. 2 are given the same reference numerals, and the explanation thereof will be omitted.

また、実施例では第1および第2の流体通路32.46
に対して第3の流体通路48を設け、第3の流体通路4
8に対して第1の流体通路32あるいは第2の流体通路
46を接続するように切換制御するようにした。しかし
、これは第1゜の流体通路32あるいは第2の流体通路
46の一方のみでよく、この場合は流体通路の開閉弁と
して作用する。
Additionally, in the embodiment, the first and second fluid passages 32.46
A third fluid passageway 48 is provided for the third fluid passageway 4 .
Switching control is performed so that the first fluid passage 32 or the second fluid passage 46 is connected to the first fluid passage 8. However, this may be only one of the first fluid passage 32 or the second fluid passage 46, and in this case, it acts as an on-off valve for the fluid passage.

その他、薄板状ばね体39を保持する機構において、振
動等によってばね板39が外れる等の支障の発生するお
それのある場合は、ケース38もしくは磁性筒状体37
のばね板39との接触面に適当な凹み等を設けてばね板
39の外周を嵌め込むようにしてもよい。あるいは磁性
筒状体37に対して溶接等で直接的に結合するようにし
てもよい。また、吸引部材部に開口42を形成したが、
空気等の流体がその外周縁部から流れる量が充分であれ
ば開口42は無くともよい。
In addition, in the mechanism that holds the thin plate-shaped spring body 39, if there is a risk that the spring plate 39 may come off due to vibration etc., the case 38 or the magnetic cylindrical body 37
An appropriate recess or the like may be provided on the contact surface with the spring plate 39, and the outer periphery of the spring plate 39 may be fitted therein. Alternatively, it may be directly coupled to the magnetic cylindrical body 37 by welding or the like. In addition, although the opening 42 was formed in the suction member portion,
The opening 42 may be omitted if the amount of fluid such as air flowing from the outer peripheral edge is sufficient.

以上のようにこの発明によれば、充分小型軽量化可能な
状態で、高精度にして簡易に組み立て可能な電磁弁が得
られるものであシ、信頼性を充分に高くすることのでき
る大きな効果が発揮されるものである。特に、可動鉄芯
に相当する部材が、薄板状にしたばね体で保持され、こ
のばね体は確実に固定されるものであるため、振動、衝
撃等に対して充分な耐久性を有するものであシ、例えは
自動車搭載用エンジンの負圧制御系等に応用してその効
果は著るしい。さらに、可動鉄芯それ自体が移動するも
のではないため、切換動作時に不要な衝撃音を発生する
ようなこともない。
As described above, according to the present invention, it is possible to obtain a solenoid valve that is sufficiently small and lightweight, has high precision, and can be easily assembled, and has the great effect of sufficiently increasing reliability. is demonstrated. In particular, the member corresponding to the movable iron core is held by a thin plate-shaped spring body, and this spring body is securely fixed, so it has sufficient durability against vibrations, shocks, etc. The effect is remarkable when applied to, for example, the negative pressure control system of an automobile engine. Furthermore, since the movable iron core itself does not move, unnecessary impact noise is not generated during the switching operation.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の電磁弁を示す断面図、第2図はこの発明
の一実施例に係る電磁弁を示す断面図、第3図は上記電
磁弁のばね体を取り出して示す図、第4図の(4)は同
じく磁性板体部を示す図で、(B)はその断面図、第5
図はこの発明の他の実施例を示す断面図である。 31・・・固定の鉄芯、32,46.48・・・流体通
路、34・−・フランジ、36・・・励磁コイル、37
・・・磁性筒状体、38・・・ケース、39・・・薄板
状ばね体、40・・・磁性体板、41.44・・・弁部
材、45・・・流体室。 出願人代理人  弁理士 鈴 江 武 彦第2図 第4図 (A)    (B) 第561 手続補正書 昭和58年 2月l 日 昭和57年特許願第98015号 2発明の名称 電  磁  弁 3補正をする者 事件との関係  特許出願人 愛知県刈谷市昭和町1丁目1番地 4補正の対象 明細書の発明の詳細な説明の欄。 5補正の内容 11)明細書第15頁第19行1の「よい、」の後に次
の文章を挿入します。 「更に上述の鍔では吸引部材の磁性体板40を平板とし
たが、この磁性体板40外周を磁性筒状体37内面と平
行に屈曲させてもよい、この場合には磁性体板40と磁
性筒状体37との対向面積が増えて、磁気回路における
小間隙8の磁気損失が減少できる。」
FIG. 1 is a sectional view showing a conventional solenoid valve, FIG. 2 is a sectional view showing a solenoid valve according to an embodiment of the present invention, FIG. (4) in the figure similarly shows the magnetic plate body part, and (B) is its cross-sectional view.
The figure is a sectional view showing another embodiment of the invention. 31...Fixed iron core, 32, 46.48...Fluid passage, 34...Flange, 36...Exciting coil, 37
...Magnetic cylindrical body, 38...Case, 39...Thin plate-shaped spring body, 40...Magnetic plate, 41.44...Valve member, 45...Fluid chamber. Applicant's representative Patent attorney Takehiko Suzue Figure 2 Figure 4 (A) (B) 561 Procedural amendment February 1, 1982 Patent application No. 98015, filed in 1981 2 Name of invention Electromagnetic valve 3 Relationship with the case of the person making the amendment A column for the detailed explanation of the invention in the specification to be amended by the patent applicant, 1-1-4 Showa-cho, Kariya-shi, Aichi Prefecture. 5 Contents of amendment 11) Insert the following sentence after "Good" on page 15, line 19, 1 of the specification. Furthermore, in the above-mentioned collar, the magnetic plate 40 of the attraction member is a flat plate, but the outer periphery of the magnetic plate 40 may be bent parallel to the inner surface of the magnetic cylindrical body 37. In this case, the magnetic plate 40 and The area facing the magnetic cylindrical body 37 increases, and the magnetic loss in the small gap 8 in the magnetic circuit can be reduced.

Claims (3)

【特許請求の範囲】[Claims] (1)励磁コイルに対する励磁電流で励磁制御される固
定の鉄芯と、この鉄芯の外周部に同軸的に配置され磁気
回路を形成する磁性筒状体と、この磁性筒状体で外周部
が保持され上記固定の鉄芯の端面に対向しこの端面から
離れる方向”に付勢された薄肉板状のばね体と、このば
ね体に一体に設けられ上記固定の鉄芯に対向し上記磁性
筒状体に微小間隙で設定される薄肉の吸引部材と、上記
はね体に一体に設けられた弁部材とを具備し、上記固定
の鉄芯の励磁状態でばね体に一体の吸引部材を吸引し、
はね体に対向形成される流体通路を開閉制御するように
したことを特徴とする電磁弁。
(1) A fixed iron core whose excitation is controlled by an excitation current to an excitation coil, a magnetic cylindrical body coaxially arranged around the outer periphery of this iron core and forming a magnetic circuit, and a magnetic cylindrical body that forms a magnetic circuit. a thin plate-like spring body which is held in a direction opposite to the end face of the fixed iron core and biased in a direction away from the end face; It is equipped with a thin suction member set in a cylindrical body with a minute gap and a valve member integrally provided with the spring body, and when the fixed iron core is energized, the suction member integral with the spring body is activated. suction,
A solenoid valve characterized in that it controls opening and closing of a fluid passage formed opposite to a splash body.
(2)上記吸引部材は、磁性体板と非磁性体板との組み
合わせで構成し、固定鉄芯との対向面に非磁性体板が設
定されるようにした特許請求の範囲第1項記載の電磁弁
(2) The above-mentioned attracting member is constituted by a combination of a magnetic plate and a non-magnetic plate, and the non-magnetic plate is set on the surface facing the fixed iron core. Solenoid valve.
(3)前記固定鉄芯および磁性筒状体は、磁性体板によ
って一体に形成した特許請求の範囲第1項記載の電磁弁
(3) The electromagnetic valve according to claim 1, wherein the fixed iron core and the magnetic cylindrical body are integrally formed by a magnetic plate.
JP9801582A 1982-06-08 1982-06-08 Solenoid valve Pending JPS58214084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9801582A JPS58214084A (en) 1982-06-08 1982-06-08 Solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9801582A JPS58214084A (en) 1982-06-08 1982-06-08 Solenoid valve

Publications (1)

Publication Number Publication Date
JPS58214084A true JPS58214084A (en) 1983-12-13

Family

ID=14207990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9801582A Pending JPS58214084A (en) 1982-06-08 1982-06-08 Solenoid valve

Country Status (1)

Country Link
JP (1) JPS58214084A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218430A2 (en) * 1985-09-27 1987-04-15 Rosemount Inc. Magnetic actuator
US4763635A (en) * 1985-05-30 1988-08-16 Robert Bosch Gmbh Discharge system for introducing volatilized fuel into an internal combustion engine
JPS63312586A (en) * 1987-06-16 1988-12-21 Yasuhiko Watanabe Flow control valve
JPS63312587A (en) * 1987-06-16 1988-12-21 Yasuhiko Watanabe Flow control valve
JPH07243546A (en) * 1994-03-01 1995-09-19 Nippon Spindle Mfg Co Ltd Solenoid-operated high speed response valve
US5628491A (en) * 1993-04-15 1997-05-13 Westfalia Separator Aktiengesellschaft Pilot valve
FR2955908A1 (en) * 2010-02-02 2011-08-05 Asco Joucomatic Sa PILOT SOLENOID VALVE

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763635A (en) * 1985-05-30 1988-08-16 Robert Bosch Gmbh Discharge system for introducing volatilized fuel into an internal combustion engine
EP0218430A2 (en) * 1985-09-27 1987-04-15 Rosemount Inc. Magnetic actuator
JPS63312586A (en) * 1987-06-16 1988-12-21 Yasuhiko Watanabe Flow control valve
JPS63312587A (en) * 1987-06-16 1988-12-21 Yasuhiko Watanabe Flow control valve
US5628491A (en) * 1993-04-15 1997-05-13 Westfalia Separator Aktiengesellschaft Pilot valve
JPH07243546A (en) * 1994-03-01 1995-09-19 Nippon Spindle Mfg Co Ltd Solenoid-operated high speed response valve
FR2955908A1 (en) * 2010-02-02 2011-08-05 Asco Joucomatic Sa PILOT SOLENOID VALVE
WO2011095928A1 (en) * 2010-02-02 2011-08-11 Asco Joucomatic Sa Pilot solenoid valve
US9273791B2 (en) 2010-02-02 2016-03-01 Asco Joucomatic Sa Pilot solenoid valve

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