JP2595319Y2 - solenoid - Google Patents
solenoidInfo
- Publication number
- JP2595319Y2 JP2595319Y2 JP1992050909U JP5090992U JP2595319Y2 JP 2595319 Y2 JP2595319 Y2 JP 2595319Y2 JP 1992050909 U JP1992050909 U JP 1992050909U JP 5090992 U JP5090992 U JP 5090992U JP 2595319 Y2 JP2595319 Y2 JP 2595319Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- stator
- pressure receiving
- receiving surface
- solenoid
- 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)
- Electromagnets (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、たとえば内燃機関の燃
料噴射系のバルブ等に用いられるソレノイドに関し、特
にステータを積層構造としたものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid used for, for example, a valve of a fuel injection system of an internal combustion engine, and more particularly to a solenoid having a laminated structure of a stator.
【０００２】[0002]
【従来の技術】従来のこの種のソレノイドとして、たと
えば図４に示すような内燃機関の燃料噴射系のバルブ等
に使用される積層形のソレノイドがある。すなわち、１
００は多数枚の磁性板１０１，…を積層して構成した積
層ステータであり、この積層ステータ１００に装着され
たコイル１０２を励磁することによりアーマチュア１０
３をステータを積層ステータ１００の燃料等の油圧を受
ける端面１０４に磁気吸着するものである。2. Description of the Related Art As this type of conventional solenoid, there is, for example, a laminated solenoid used for a valve of a fuel injection system of an internal combustion engine as shown in FIG. That is, 1
Reference numeral 00 denotes a laminated stator formed by laminating a large number of magnetic plates 101,..., And excites an armature 10 by exciting a coil 102 mounted on the laminated stator 100.
3 is for magnetically attracting the stator to the end face 104 of the laminated stator 100 which receives hydraulic pressure such as fuel.
【０００３】上記のように積層構造とすることにより、
ソレノイドオン時又はオフ時の渦電流の発生を防止して
高速応答性を確保するものである。また、同時に気密性
をもたせるために積層ステータ１００の外周を、積層ス
テータ１００の上端面に設けられるガイドスペーサ１０
５とコイル１０２に電気を吸引するためのコネクタ１０
６とを介して端面１０４を露出させた状態で樹脂１０７
により全周的に被覆して積層ステータ１０１と一体成形
している。[0003] By having a laminated structure as described above,
This prevents high speed responsiveness by preventing generation of eddy current when the solenoid is turned on or off. At the same time, the outer periphery of the laminated stator 100 is provided on the upper end surface of the laminated stator 100 so as to have airtightness.
5 and a connector 10 for attracting electricity to the coil 102
6 with the end face 104 exposed through the resin 107.
And is integrally formed with the laminated stator 101.
【０００４】[0004]
【考案が解決しようとする課題】しかしながら上記した
従来技術にあっては、端面１０４に加わる油圧が８０kg
f/cm2 のように作動圧が高い場合に、図５に端面１０４
を示すが、油のほとんどが積層ステータ１００間を伝わ
り、さらに樹脂１０７とガイドスペーサ１０５やコネク
タ１０６の界面を通って外部に漏れてくるという欠点が
あった。However, in the above-mentioned prior art, the hydraulic pressure applied to the end face 104 is 80 kg.
When the operating pressure is high, such as f / cm 2 , FIG.
However, there is a disadvantage that most of the oil is transmitted between the laminated stators 100 and further leaks outside through the interface between the resin 107 and the guide spacer 105 or the connector 106.
【０００５】本考案は上記した従来技術の課題を解決す
るためになされたもので、その目的とするところは、シ
ール性の向上を図り得るソレノイドを提供することにあ
る。The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a solenoid capable of improving sealing performance.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本考案にあっては、多数枚の磁性板により積層構造とされたステータと、 前記ステータの受圧面となる端面を露出させた状態で全
周的に被覆するカバーと、 前記カバーにより全周的に被覆されたステータに装着さ
れるコイルと、 前記カバー及びコイルを前記受圧面となる端面を露出さ
せた状態で全周的に被覆する樹脂と、 を備える ことを特徴とする。In order to achieve the above object, in the present invention , a stator having a laminated structure composed of a number of magnetic plates and an end face serving as a pressure receiving surface of the stator are exposed. All in state
A cover that is circumferentially covered; and a stator that is circumferentially covered by the cover.
A coil, the end face of the cover and the coil serving as the pressure receiving surface exposed is that
And a resin for the entire circumference to cover in a state in which, characterized in that it comprises a.
【０００７】[0007]
【作用】上記構成のソレノイドにあっては、ステータの
外周に受圧面となる端面を露出させた状態で全周的にカ
バーを被覆した上に樹脂で被覆したため、該端面より流
体がステータ間を伝わってソレノイド内部に侵入してく
るが、カバーにてシールしてくれる。したがって、その
分外部への漏れ量が減りシール性が向上する。[Action] In the solenoid of the structure, coated with a resin on coating the entire circumference to cover while exposing the end face serving as a pressure receiving surface on the outer periphery of the stator, between the fluid from the end face stator , And penetrates into the solenoid, but is sealed with a cover. Therefore, the amount of leakage to the outside is reduced and the sealing performance is improved.
【０００８】[0008]
【実施例】以下に本考案を図示の実施例に基づいて説明
する。本考案の一実施例に係るソレノイドを示す図１及
び図２において、１は内燃機関の燃料噴射系のバルブ等
に使用されるソレノイドを示しており、概略、積層構造
の積層ステータ２の外周に全周的に被覆するカバーとし
てのダイカストカバー３と、カバー３を全周的に被覆す
る樹脂４と、積層ステータ２に装着されるコイル５と、
相手取付部材との取付部に設けられる非磁性体製の取付
補助部材としての金属環６とから構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiment. In FIGS. 1 and 2 showing a solenoid according to an embodiment of the present invention, reference numeral 1 denotes a solenoid used for a valve or the like of a fuel injection system of an internal combustion engine. A die casting cover 3 as a cover for covering the entire circumference, a resin 4 for covering the circumference of the cover 3, and a coil 5 mounted on the laminated stator 2;
And a metal ring 6 serving as a nonmagnetic material made of the mounting assisting member provided in the mounting portion of the phase hand attachment member.
【０００９】積層ステータ２は多数枚の磁性板２１を積
層した概略Ｅ字形状のブロック体で、中央磁極２２と、
この中央磁極２２と所定間隔をもって平行に設けられる
第１，第２磁極２３，２４を有している。The laminated stator 2 is a substantially E-shaped block body in which a number of magnetic plates 21 are laminated.
First and second magnetic poles 23 and 24 are provided in parallel with the central magnetic pole 22 at a predetermined interval.
【００１０】そして、コイル５が装着される積層ステー
タ２の外周に、燃料等の油圧を受ける端面としての受圧
面７を露出させた状態で、図２に示すようにダイカスト
カバー３が全周的に被覆されている。このダイカストカ
バー３は非磁性体のアルミ製で非磁性体製の金属環６と
ダイカストにより一体成形されている。尚、ダイカスト
に限るものではない。Then, with the pressure receiving surface 7 as an end face for receiving the oil pressure of fuel or the like exposed on the outer periphery of the laminated stator 2 on which the coil 5 is mounted, as shown in FIG. Is coated. The die-cast cover 3 is made of non-magnetic aluminum and is formed integrally with a non-magnetic metal ring 6 by die-casting. In addition, it is not limited to die casting.
【００１１】ダイカストカバー３は、積層ステータ２の
積層方向両端部の磁極板２１の外側端面を被覆する端面
被覆部３１と、積層ステータ２の積層方向部分を被覆す
る積層方向被覆部３２と、積層ステータ２の受圧面７と
反対側端面を全面に被覆する受圧面反対側端面被覆部３
３とから成っている。The die casting cover 3 includes an end surface covering portion 31 for covering the outer end surfaces of the pole plates 21 at both ends in the laminating direction of the laminated stator 2, a laminating direction covering portion 32 for covering a laminating direction portion of the laminated stator 2, and a laminating direction. End face covering portion 3 opposite to pressure receiving surface for covering the entire end surface opposite to pressure receiving surface 7 of stator 2
It consists of three.
【００１２】上記端面被覆部３１は、積層方向両端部の
磁性板２１の外側端面に受圧面７と同一面の位置から、
磁性板２１の受圧面７と反対側端面の位置まで、受圧面
反対側端面被覆部３３と連続してコイル５が通過する領
域を除き磁性板２１全面に対応して被覆されている。そ
して、積層方向被覆部３２は、第１，第２磁極２３，２
４の外側端面を積層方向全長にわたり金属環６と同心の
円弧形状を成し、両端面被覆部３１と連続して被覆され
ている。積層方向被覆部３２の高さ方向については、受
圧面７と反対側端面は、受圧面反対側端面被覆部３３と
連続しており、受圧面７側は金属環６と連続している。The end surface covering portion 31 is formed on the outer end surface of the magnetic plate 21 at both ends in the laminating direction from the position of the same surface as the pressure receiving surface 7.
Up to the position of the end surface of the magnetic plate 21 opposite to the pressure receiving surface 7, the area where the coil 5 passes continuously with the end surface covering portion 33 on the opposite side of the pressure receiving surface.
It is coated to correspond to the magnetic plate 21 entirely except for frequency. The lamination direction covering portion 32 includes the first and second magnetic poles 23 and 2.
4 has an arc shape concentric with the metal ring 6 over the entire length in the stacking direction, and is continuously coated with both end surface coating portions 31. In the height direction of the stacking direction covering portion 32, the end surface opposite to the pressure receiving surface 7 is continuous with the end surface covering portion 33 opposite to the pressure receiving surface, and the pressure receiving surface 7 side is continuous with the metal ring 6.
【００１３】一方、コイル５は上記中央磁極２２と第
１，第２磁極２３，２４間に装着されるもので、内周が
両端面被覆部３１を介して中央磁極２２に嵌合する四角
形状のボビン５１にコイル線を巻き付けることにより構
成されている。On the other hand, the coil 5 is mounted between the central magnetic pole 22 and the first and second magnetic poles 23 and 24. Is wound around a bobbin 51.
【００１４】また、ダイカストカバー３の受圧面反対側
端面被覆部３３上にはコイル５に電気を供給するための
コネクタ８が両端面被覆部３１の位置にそれぞれ設けら
れており、そのコネクタ８間に受圧面反対側端面被覆部
３３の端面に当接して断面凹形状のガイドスペーサ９が
設けられている。A connector 8 for supplying electricity to the coil 5 is provided on the end surface covering portion 33 on the opposite side of the pressure receiving surface of the die casting cover 3 at the position of the both end surface covering portions 31. A guide spacer 9 having a concave cross section is provided in contact with the end face of the end face covering portion 33 opposite to the pressure receiving surface.
【００１５】そして、ダイカストカバー３の外周に、積
層ステータ２の受圧面７を露出させた状態で、コネクタ
８間の絶縁をさせることも含めて気密性を上げるために
樹脂４により全周的に被覆されている。この樹脂４は、
中央磁極２２と第１，第２磁極２３，２４間の隙間にも
入り込んでいるコイル５も一体的にモールド成形されて
いる。In a state where the pressure receiving surface 7 of the laminated stator 2 is exposed on the outer periphery of the die casting cover 3, the resin 4 is used to improve the airtightness including the insulation between the connectors 8. Coated. This resin 4
The coil 5 entering the gap between the central magnetic pole 22 and the first and second magnetic poles 23 and 24 is also integrally molded.
【００１６】そして、コイル５に通電して励磁すると中
央磁極２２、アーマチュア１０、第１，第２磁極２３，
２４間を通る磁路が形成され、アーマチュア１０が積層
ステータ２の受圧面７に磁気吸着される。When the coil 5 is energized and excited, the central magnetic pole 22, the armature 10, the first and second magnetic poles 23,
A magnetic path is formed between the armatures 24 and the armature 10 is magnetically attracted to the pressure receiving surface 7 of the laminated stator 2.
【００１７】上記構成のソレノイドにあっては、受圧面
７に加わる油圧が８０kgf/cm2 のように作動圧が高い場
合に、受圧面７のうち、ソレノイド１内部に侵入する油
の大部分は、積層ステータ２間を伝わってであるが、そ
れをダイカストカバー３にてシールするため、実際にソ
レノイド１内部に侵入してくる油はダイカストカバー３
と樹脂４の界面を伝わっていく分だけに抑えられシール
性はかなり向上する。In the solenoid having the above structure, when the hydraulic pressure applied to the pressure receiving surface 7 is as high as 80 kgf / cm 2 , most of the oil entering the solenoid 1 in the pressure receiving surface 7 Although the oil is transmitted between the laminated stators 2, the oil that actually enters the inside of the solenoid 1 is sealed by the die casting cover 3,
And the sealing property is considerably improved.
【００１８】また、本実施例のように金属環６もダイカ
ストにしてダイカストカバー３と一体成形することで製
作性も良くなり、積層ステータ２の気密の信頼性も向上
する。Further, as in the present embodiment, the metal ring 6 is also die-cast, and is integrally formed with the die-cast cover 3, so that the manufacturability is improved and the reliability of the airtightness of the laminated stator 2 is improved.
【００１９】図３には、本考案に係る他のダイカストカ
バー３′を示す。このダイカストカバー３′は上記ダイ
カストカバー３の両端面被覆部３１の受圧面反対側端面
被覆部３３寄りに段差３４、すなわち高さ方向所定間隔
を有して２つの突起を設けたものである。この段差３４
を設けることでダイカストカバー３′と樹脂４の界面を
伝わっていく油が妨げられ、より一層シール性は向上す
る。FIG. 3 shows another die casting cover 3 'according to the present invention. The die casting cover 3 ′ is provided with two projections with a step 34, that is, a predetermined interval in the height direction, near the end surface covering portion 33 on the opposite side to the pressure receiving surface of the both end surface covering portions 31 of the die casting cover 3. This step 34
Is provided, the oil traveling along the interface between the die casting cover 3 'and the resin 4 is hindered, and the sealing performance is further improved.
【００２０】尚、上記実施例では、ダイカストカバー
３，３′を金属環６と一体のものを例にとって説明した
が、金属環６とダイカストカバー３が別体でも構わな
い。In the above embodiment, the die casting covers 3, 3 'have been described as being integrated with the metal ring 6, but the metal ring 6 and the die casting cover 3 may be separate bodies.
【００２１】[0021]
【考案の効果】本考案は以上の構成および作用を有する
もので、ステータの外周に受圧面となる端面を露出させ
た状態で全周的にカバーを被覆した上に樹脂で被覆した
ので、該端面より流体がステータ間を伝わってソレノイ
ド内部に侵入してくるが、カバーがシールするため、そ
の分外部への漏れ量が減りシール性が向上する。[Effects of the Invention] The present invention has the above-mentioned structure and operation. The cover is entirely covered with the end surface serving as the pressure receiving surface exposed on the outer periphery of the stator, and then covered with a resin. <Br / > so, the fluid from the end surface intrudes inside solenoid transmitted between stator, since the cover is sealed, the leakage amount to the correspondingly externally reduced to improve the sealing property.
【図１】図１（ａ）は本考案の一実施例に係るソレノイ
ドの上面図であり、同図（ｂ）は同図（ａ）のＢ−Ｂ線
断面図である。FIG. 1A is a top view of a solenoid according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along line BB of FIG. 1A.
【図２】図２（ａ）は図１のダイカストカバーの上面図
であり、同図（ｂ）は同図（ａ）のＸ−Ｘ線断面図であ
り、同図（ｃ）は同図（ａ）のＹ−Ｙ線断面図である。2A is a top view of the die casting cover of FIG. 1, FIG. 2B is a cross-sectional view taken along line XX of FIG. 2A, and FIG. It is a YY line sectional view of (a).
【図３】図３（ａ）は本考案に係る他のダイカストカバ
ーの上面図であり、同図（ｂ）は同図（ａ）のＸ−Ｘ線
断面図であり、同図（ｃ）は同図（ａ）のＹ−Ｙ線断面
図である。3 (a) is a top view of another die casting cover according to the present invention, and FIG. 3 (b) is a sectional view taken along line XX of FIG. 3 (a), and FIG. 3 (c). FIG. 3 is a sectional view taken along line YY in FIG.
【図４】図４（ａ）は従来のソレノイドの上面図であ
り、同図（ｂ）は同図（ａ）のＢ−Ｂ線断面図である。FIG. 4 (a) is a top view of a conventional solenoid, and FIG. 4 (b) is a sectional view taken along line BB of FIG. 4 (a).
【図５】図５は図４のソレノイドの端面を示す図であ
る。FIG. 5 is a view showing an end face of the solenoid of FIG. 4;
１ ソレノイド ２ 積層ステータ（ステータ） ２１ 磁性板 ２２ 中央磁極 ２３ 第１磁極 ２４ 第２磁極 ３，３′ ダイカストカバー（カバー） ３１ 端面被覆部 ３２ 積層方向被覆部 ３３ 受圧面反対側端面被覆部 ３４ 段差 ４ 樹脂 ５ コイル ５１ ボビン ６ 金属環 ７ 受圧面（端面） ８ コネクタ ９ ガイドスペーサ １０ アーマチュア DESCRIPTION OF SYMBOLS 1 Solenoid 2 Laminated stator (stator) 21 Magnetic plate 22 Central magnetic pole 23 1st magnetic pole 24 2nd magnetic pole 3, 3 'Die-cast cover (cover) 31 End face covering part 32 Laminating direction covering part 33 End face covering part opposite to pressure receiving surface 34 Step 4 Resin 5 Coil 51 Bobbin 6 Metal ring 7 Pressure receiving surface (end face) 8 Connector 9 Guide spacer 10 Armature
Claims (1)
ステータと、 前記ステータの受圧面となる端面を露出させた状態で全
周的に被覆するカバーと、 前記カバーにより全周的に被覆されたステータに装着さ
れるコイルと、 前記カバー及びコイルを前記受圧面となる端面を露出さ
せた状態で全周的に被覆する樹脂と、 を備える ことを特徴とするソレノイド。1. A laminated structure comprising a number of magnetic plates.
With the stator and the end face serving as a pressure receiving surface of the stator being exposed,
A cover that is circumferentially covered; and a stator that is circumferentially covered by the cover.
A coil, the end face of the cover and the coil serving as the pressure receiving surface exposed is that
Solenoids, characterized in that it comprises a resin that entire circumference to cover in a state in which, a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992050909U JP2595319Y2 (en) | 1992-06-26 | 1992-06-26 | solenoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992050909U JP2595319Y2 (en) | 1992-06-26 | 1992-06-26 | solenoid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH066856U JPH066856U (en) | 1994-01-28 |
| JP2595319Y2 true JP2595319Y2 (en) | 1999-05-31 |
Family
ID=12871910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992050909U Expired - Fee Related JP2595319Y2 (en) | 1992-06-26 | 1992-06-26 | solenoid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2595319Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2551006B2 (en) * | 1987-06-27 | 1996-11-06 | 日本電装株式会社 | Solenoid valve for fluid control |
| JP2556110B2 (en) * | 1988-10-05 | 1996-11-20 | 日本電装株式会社 | Stator for solenoid |
-
1992
- 1992-06-26 JP JP1992050909U patent/JP2595319Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066856U (en) | 1994-01-28 |
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