JPS61168214A - Electromagnetic proportional solenoid - Google Patents
Electromagnetic proportional solenoidInfo
- Publication number
- JPS61168214A JPS61168214A JP747885A JP747885A JPS61168214A JP S61168214 A JPS61168214 A JP S61168214A JP 747885 A JP747885 A JP 747885A JP 747885 A JP747885 A JP 747885A JP S61168214 A JPS61168214 A JP S61168214A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- yoke
- solenoid
- electromagnetic proportional
- housing
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/081—Magnetic constructions
- H01F2007/085—Yoke or polar piece between coil bobbin and armature having a gap, e.g. filled with nonmagnetic material
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は電磁比例制御弁等に使用される電磁比例ソレノ
イドに関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an electromagnetic proportional solenoid used in an electromagnetic proportional control valve or the like.
（従来技術及びその問題点）
電磁比例制御弁等に使用される電磁比例ソレノイドはソ
レノイドの励磁電流に応じて弁体の開弁圧を制御するプ
ランジャを正確に変位させることが必要である。そこで
、従来の電磁比例ソレノイドは普通第３図に示すように
、ハウジング１内に形成した円筒部２に非磁性部材で形
成したシャフト３を貫設したプランジャ４を収納し、シ
ャツｈ３の両端を軸受５，６により軸方向に摺動可能に
軸支する一方、円筒部２の内周面とプランジャ４の外周
面との間に僅かなりリアランスを設けて当該プランジャ
４の前記円筒部２の内周面への吸着を防止し、ハウジン
グ１に巻回したソレノイド７の励磁電流に応じてプラン
ジャ４を正確に変位制御するようにしている。(Prior art and its problems) It is necessary for an electromagnetic proportional solenoid used in an electromagnetic proportional control valve to accurately displace a plunger that controls the valve opening pressure of a valve body in accordance with the excitation current of the solenoid. Therefore, as shown in FIG. 3, a conventional electromagnetic proportional solenoid normally houses a plunger 4 having a shaft 3 made of a non-magnetic material inserted into a cylindrical part 2 formed in a housing 1, and connects both ends of the shirt h3. The plunger 4 is supported slidably in the axial direction by bearings 5 and 6, and a slight clearance is provided between the inner circumferential surface of the cylindrical portion 2 and the outer circumferential surface of the plunger 4. Adsorption to the peripheral surface is prevented, and the displacement of the plunger 4 is accurately controlled in accordance with the excitation current of the solenoid 7 wound around the housing 1.
しかしながら、上記構成の電磁比例ソレノイドは部品点
数が多く、且つ構造が複雑であり、しかも、シャフト３
の両端を軸支する両軸受５，６の加工精度及び円筒部２
の内周面とプランジャ４の外周面との間のクリアランス
の管理等の３箇所の加工精度を高めることが必要であり
、非常に高価となると共に、形状も大形化する等の問題
がある。However, the electromagnetic proportional solenoid with the above configuration has a large number of parts and a complicated structure.
Machining accuracy of both bearings 5 and 6 that pivotally support both ends of the cylindrical part 2
It is necessary to improve the machining accuracy at three points, such as controlling the clearance between the inner circumferential surface of the plunger 4 and the outer circumferential surface of the plunger 4, which causes problems such as being very expensive and making the shape larger. .
（発明の目的）
本発明は上述の点に鑑みてなされたもので、電磁比例ソ
レノイドの構造を簡略化し、安価且つ小形化を図るよう
にした電磁比例ソレノイＩくを提供することを目的とす
る。(Objective of the Invention) The present invention has been made in view of the above-mentioned points, and an object thereof is to provide an electromagnetic proportional solenoid I which has a simplified structure and is inexpensive and compact. .
（発明の概要）
上記目的を達成するために本発明においてはハウジング
内に形成した円筒部に軸方向に移動可能に収納したプラ
ンジャを、当該ハウジングに巻回したソレノイドの励磁
電流に応じて変位させるようにした電磁ソレノイドにお
いて、前記円筒部の内周面又は前記プランジャの外周面
の少なくとも一方の面に非磁性体層を同心的に形成し、
当該プランジャを前記円筒部に軸方向に摺動可能に嵌挿
し、プランジャ自体に軸および軸受の機能を持たせ、且
つ前記円筒部内周面と前記プランジャ外周面との間のク
リアランスを一定に保つように構成したものである。(Summary of the Invention) In order to achieve the above object, the present invention displaces a plunger, which is housed in a cylindrical portion formed within a housing so as to be movable in the axial direction, in accordance with the excitation current of a solenoid wound around the housing. In the electromagnetic solenoid, a non-magnetic layer is concentrically formed on at least one of the inner circumferential surface of the cylindrical portion or the outer circumferential surface of the plunger,
The plunger is fitted into the cylindrical portion so as to be slidable in the axial direction, the plunger itself has the function of a shaft and a bearing, and a clearance between the inner circumferential surface of the cylindrical portion and the outer circumferential surface of the plunger is maintained constant. It is composed of
（実施例） 以下本発明の一実施例を添付図面に基づいて説明する。(Example) An embodiment of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係る電磁比例ソ１ツメイドを適用した
電磁比例制御弁を示し、電磁比例ソレノイド１０は、ハ
ヴシング１１、該ハウジング１］内に収納されるプラン
ジャ１２、ハｒグシンク１１に巻回されるソレノイド４
３、ハウジング１］−及びソレノイド１３を収納するカ
バー１４等で４ｉり成されている。FIG. 1 shows an electromagnetic proportional control valve to which an electromagnetic proportional solenoid according to the present invention is applied. Solenoid 4 being turned
3. The housing 1]-, the cover 14 for housing the solenoid 13, etc. are made up of 4i.
ハウジング１１は第１のヨーク１５と第２のヨーク１６
と、これらのヨーク１５とヨーク１６どの間に介在され
る環状部材１７とから成り、ヨーク１．５の本体１５ａ
の一端面の軸心には孔１５ｂが穿設され、該孔１５ｂの
底面には貫通孔１５ｃが同心状に穿設され、他端にはフ
ランジ］、 ５ ｄが形成されている。ヨーク１６は有
底円筒体でその外径はヨーク１５の本体１５ａの外径と
等径に内径は孔１５ｂの内径と等径に設定されている。The housing 11 has a first yoke 15 and a second yoke 16.
and an annular member 17 interposed between these yokes 15 and 16, and a main body 15a of the yoke 1.5.
A hole 15b is formed in the axis of one end surface of the hole 15b, a through hole 15c is formed concentrically in the bottom surface of the hole 15b, and a flange 5d is formed at the other end. The yoke 16 is a cylindrical body with a bottom, and its outer diameter is set to be equal to the outer diameter of the main body 15a of the yoke 15, and its inner diameter is set to be equal to the inner diameter of the hole 15b.
これらのヨーク１５の孔１５ｂの開口端とヨーク１６の
開口端とは環状部材１７を介して接続されている。The open ends of the holes 15b of these yokes 15 and the open ends of the yoke 16 are connected via an annular member 17.
環状部材１７は、非磁性部材で形成され、その外径内径
は夫々ヨーク１６の外径、内径と同径に設定されている
。この環状部材１７はヨーク１５と１６との間の磁気回
路を遮断し、ソレノイド１３により発生される磁束をヨ
ーク１５、プランジャ１２、ヨーク１６の経路で流すよ
うにしている。The annular member 17 is made of a non-magnetic material, and its outer diameter and inner diameter are set to be the same as the outer diameter and inner diameter of the yoke 16, respectively. This annular member 17 interrupts the magnetic circuit between the yokes 15 and 16, and allows the magnetic flux generated by the solenoid 13 to flow through the yoke 15, plunger 12, and yoke 16 path.
これらのヨーク１５の本体１５ａと環状部材１７と、ヨ
ーク１６とによりハウジング１１の円筒部１１ａが形成
される。The main body 15a of the yoke 15, the annular member 17, and the yoke 16 form a cylindrical portion 11a of the housing 11.
プランジャ１２は円筒部１１ａ内に収納され、その外径
はヨーク１６の内径よりもやや小径に設定され軸心には
孔１２ａが穿設され、−側聞目端１２８′は段差をなし
て大径に拡開されている。The plunger 12 is housed in a cylindrical portion 11a, its outer diameter is set to be slightly smaller than the inner diameter of the yoke 16, and a hole 12a is bored in the axis, and the - side eye end 128' is stepped and larger. It has been expanded in diameter.
このプランジャ１２の外周面１２ｂには非磁性部材の層
（以下非磁性体層という）２０が全周に亘り所定の肉厚
で均一に形成されている。この非磁性体層２０の外径は
、ヨーク１６の内径よりも僅かに小さく、プランジャ１
２がヨーク１６内に軸方向に摺動可能に嵌挿される大き
さに設定されている。非磁性体層２ｏは例えばテフロン
等の耐摩純性を有する樹脂部材で形成されている。この
プランジャ１２は円筒部１１ａ内に軸方向に摺動可能に
嵌挿される。この状態において、ヨーク１６の内周面と
プランジャ１２の外周面とは非磁性体層２０を介して摺
接され、これら両者が磁気的に吸着することが防止され
る。On the outer peripheral surface 12b of the plunger 12, a layer 20 of a non-magnetic material (hereinafter referred to as a non-magnetic material layer) is uniformly formed with a predetermined thickness over the entire circumference. The outer diameter of this non-magnetic layer 20 is slightly smaller than the inner diameter of the yoke 16, and the plunger 1
2 is set to be sized to be slidably inserted into the yoke 16 in the axial direction. The non-magnetic layer 2o is made of a resin material having abrasion resistance, such as Teflon. This plunger 12 is fitted into the cylindrical portion 11a so as to be slidable in the axial direction. In this state, the inner circumferential surface of the yoke 16 and the outer circumferential surface of the plunger 12 are in sliding contact with each other via the nonmagnetic layer 20, and magnetic attraction between the two is prevented.
プランジャ１２の孔１２ａの開口端１２８′と、ヨーク
１６の対向端面との間にはコイルスプリング１９が介在
され、ヨーク１５の孔１．５ｂの端面には非磁性部材で
形成されたスペーサ２１が嵌合配設されている。A coil spring 19 is interposed between the open end 128' of the hole 12a of the plunger 12 and the opposite end surface of the yoke 16, and a spacer 21 made of a non-magnetic material is provided on the end surface of the hole 1.5b of the yoke 15. Fitted and arranged.
ヨーク１１の円筒部１１ａにはソレノイド１３が巻回さ
れ、これらのヨーク１１及びソレノイド１３は略碗状の
カバー１４に収納されている。カバー１４は磁性部材で
形成され、ヨーク１５のフランジ１５ｄの外周が当該カ
バー１４の開口端１４ａに嵌合され、ヨーク１６の底端
が当該カノベーの底端に設けられた凹部１４ｂに嵌合し
、外部磁気回路を形成している。A solenoid 13 is wound around the cylindrical portion 11a of the yoke 11, and the yoke 11 and the solenoid 13 are housed in a substantially bowl-shaped cover 14. The cover 14 is made of a magnetic material, and the outer periphery of the flange 15d of the yoke 15 is fitted into the open end 14a of the cover 14, and the bottom end of the yoke 16 is fitted into the recess 14b provided at the bottom end of the cover. , forming an external magnetic circuit.
ヨーク１５のフランジ１５ｄの端面には制御弁を形成す
るハウジング２４が固着され、このハウジング２４には
ヨーク１５の孔１−５ｃと対応する孔２４．ａ、該孔２
４−ａに連通し弁体２５を収納する孔２．４ｂ、孔２５
に連通され、弁体２５により閉塞される孔２４ｃ及び孔
２４ｂに連通ずるドレイン孔２４ｄが穿設されている。A housing 24 forming a control valve is fixed to the end face of the flange 15d of the yoke 15, and the housing 24 has holes 24. a, the hole 2
Hole 2.4b, which communicates with 4-a and accommodates the valve body 25, and hole 25
A hole 24c and a drain hole 24d, which are in communication with the hole 24c and the hole 24b, which are closed by the valve body 25, are bored.
弁体２５は孔２４ｂ内に収納されて孔２４−ｃを閉塞し
ており、該弁体２５とプランジャ１２との各対向端面間
には孔１５ｃを貫通して弁体２５を閉弁方向に付勢する
コイルばね２６が介在されている。The valve body 25 is housed in the hole 24b and closes the hole 24-c, and a hole 15c is inserted between the opposing end surfaces of the valve body 25 and the plunger 12 to move the valve body 25 in the valve closing direction. A biasing coil spring 26 is interposed.
プランジャ１２は、ソレノイド１３に供給する励磁電流
に応じて吸引されてヨーク１６内をヨーク１５方向に摺
動し、これに応じてコイルばね２６を圧縮してそのセッ
ト荷重、即ち、開弁圧を制御する。尚、プランジャ１２
の両側の空間は貫通孔１２ａを介して連通されているた
めに当該プランジャ１２は円滑に摺動し得る。The plunger 12 is attracted in response to the excitation current supplied to the solenoid 13 and slides within the yoke 16 in the direction of the yoke 15, and compresses the coil spring 26 in response to this, thereby increasing its set load, that is, the valve opening pressure. Control. In addition, plunger 12
Since the spaces on both sides of the plunger 12 are communicated with each other through the through hole 12a, the plunger 12 can slide smoothly.
第２図は本発明の他の実施例を示し、前記プランジャ１
２の外周面１．２ ｂに替えて円筒部１１． ａの内周
面１．１． ｂに非磁性体層２０′を形成したものであ
る。FIG. 2 shows another embodiment of the invention, in which the plunger 1
The outer circumferential surface 1.2b of cylindrical portion 11. Inner peripheral surface of a 1.1. A non-magnetic layer 20' is formed on b.
（発明の効果）
以上説明したように本発明によればハウジング内に形成
した円筒部に軸方向に移動可能に収納したプランジャを
当該ハウジングに巻回したソＩツノイドの励磁電流に応
じて変位させるようにした電磁比例ソレノイドにおいて
、前記円筒部の内周面又は前記プランジャの外周面の少
なくとも一方の面に非磁性体層を同心的に形成し、当該
プランジャを前記円筒部に軸方向に摺動可能に嵌挿する
ようにしたので、従来のシャツ１〜を貫設したプランジ
ャを使用する電磁比例ソレノイドに比して構造が極めて
簡単且つ部品点数の低減が図られ、この結果、製造コス
トの低減及び小型化を図ることが可能となる等の利点が
ある。(Effects of the Invention) As explained above, according to the present invention, the plunger, which is housed movably in the axial direction in the cylindrical portion formed in the housing, is displaced in accordance with the excitation current of the solenoid wound around the housing. In the electromagnetic proportional solenoid, a non-magnetic layer is concentrically formed on at least one of the inner circumferential surface of the cylindrical portion or the outer circumferential surface of the plunger, and the plunger is slidable in the axial direction on the cylindrical portion. Because it can be inserted easily, the structure is extremely simple and the number of parts is reduced compared to the conventional electromagnetic proportional solenoid that uses a plunger inserted through the shirt.As a result, manufacturing costs are reduced. It also has advantages such as being able to achieve miniaturization.
第１図は本発明に係る電磁比例ソレノイドの一実施例を
示す縦断面図、第２図は本発明のハウジ ゛ングの他
の実施例を示す断面図、第３図は従来の電磁比例ソレノ
イドの縦断面図である。
１１−・・・ハウジング、１２・・・プランジャ、１３
・・・ソレノイド、１４・・・カバー、１５．１６・＝
ヨーク、２０．２０’・・・非磁性体層。Fig. 1 is a longitudinal sectional view showing one embodiment of the electromagnetic proportional solenoid according to the present invention, Fig. 2 is a sectional view showing another embodiment of the housing of the invention, and Fig. 3 is a conventional electromagnetic proportional solenoid. FIG. 11- Housing, 12 Plunger, 13
...Solenoid, 14...Cover, 15.16.=
Yoke, 20.20'...Nonmagnetic layer.
Claims (1)
に収納したプランジャを当該ハウジングに巻回したソレ
ノイドの励磁電流に応じて変位させるようにした電磁比
例ソレノイドにおいて、前記円筒部の内周面又は前記プ
ランジャの外周面の少なくとも一方の面に非磁性体層を
同心的に形成し、当該プランジャを前記円筒部に軸方向
に摺動可能に嵌挿するようにしたことを特徴とする電磁
比例ソレノイド。1. In an electromagnetic proportional solenoid in which a plunger is disposed movably in the axial direction in a cylindrical part formed in a housing and is displaced in response to an excitation current of a solenoid wound around the housing, the inner circumferential surface of the cylindrical part or the An electromagnetic proportional solenoid, characterized in that a non-magnetic layer is concentrically formed on at least one of the outer peripheral surfaces of the plunger, and the plunger is slidably inserted into the cylindrical portion in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP747885A JPS61168214A (en) | 1985-01-21 | 1985-01-21 | Electromagnetic proportional solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP747885A JPS61168214A (en) | 1985-01-21 | 1985-01-21 | Electromagnetic proportional solenoid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61168214A true JPS61168214A (en) | 1986-07-29 |
Family
ID=11666875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP747885A Pending JPS61168214A (en) | 1985-01-21 | 1985-01-21 | Electromagnetic proportional solenoid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61168214A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997002582A1 (en) * | 1995-06-30 | 1997-01-23 | Siemens Electric Limited | Electromagnetic actuator arrangement for engine control valve |
| EP0811996A1 (en) * | 1996-06-07 | 1997-12-10 | Binder Magnete GmbH | Electromagnetic actuator |
| EP2325850A1 (en) * | 2008-09-11 | 2011-05-25 | Kawasaki Jukogyo Kabushiki Kaisha | Oil immersed solenoid |
| US8505874B2 (en) | 2008-09-11 | 2013-08-13 | Kawasaki Jukogyo Kabushiki Kaisha | Adjusting screw structure of oil immersed solenoid and oil immersed solenoid including the same |
| EP3255641A4 (en) * | 2015-02-02 | 2018-10-17 | Eagle Industry Co., Ltd. | Solenoid |
-
1985
- 1985-01-21 JP JP747885A patent/JPS61168214A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997002582A1 (en) * | 1995-06-30 | 1997-01-23 | Siemens Electric Limited | Electromagnetic actuator arrangement for engine control valve |
| EP0811996A1 (en) * | 1996-06-07 | 1997-12-10 | Binder Magnete GmbH | Electromagnetic actuator |
| EP2325850A1 (en) * | 2008-09-11 | 2011-05-25 | Kawasaki Jukogyo Kabushiki Kaisha | Oil immersed solenoid |
| EP2325850A4 (en) * | 2008-09-11 | 2011-11-09 | Kawasaki Heavy Ind Ltd | Oil immersed solenoid |
| US8350651B2 (en) | 2008-09-11 | 2013-01-08 | Kawasaki Jukogyo Kabushiki Kaisha | Oil immersed solenoid |
| US8505874B2 (en) | 2008-09-11 | 2013-08-13 | Kawasaki Jukogyo Kabushiki Kaisha | Adjusting screw structure of oil immersed solenoid and oil immersed solenoid including the same |
| EP3255641A4 (en) * | 2015-02-02 | 2018-10-17 | Eagle Industry Co., Ltd. | Solenoid |
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| JP2540784Y2 (en) | solenoid valve |