JPH01320383A - Solenoid valve - Google Patents
Solenoid valveInfo
- Publication number
- JPH01320383A JPH01320383A JP15413488A JP15413488A JPH01320383A JP H01320383 A JPH01320383 A JP H01320383A JP 15413488 A JP15413488 A JP 15413488A JP 15413488 A JP15413488 A JP 15413488A JP H01320383 A JPH01320383 A JP H01320383A
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- elastic body
- plunger
- bobbin
- thick part
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- 241000277269 Oncorhynchus masou Species 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
この発明は流体通路を電気的に切換える電磁弁、特に自
動車に装着して負圧流路を切換える電磁弁に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a solenoid valve that electrically switches a fluid passage, and particularly to a solenoid valve that is installed in an automobile and switches a negative pressure passage.
［従来の技術］
従来の電磁弁を第９図、第１０図について説明する。第
９図は縦断側面図、第１０図は第９図の線ｘ−ｘの断面
図である。図において、（１）は流体通路（Ａ）、（Ｂ
）を構成するバルブシート、（２）は漏洩磁束を減少さ
せるための磁路板、（３）はバルブシート（１）に磁路
板（２）を介してヨーク（４）により取付けられるハウ
ジング、（５）は０リング、（６）は樹脂製のボビン（
７）に巻回されたコイルで、ハウジング（３）の内部に
嵌装されている。（８）はボビン（７）の中央空洞に固
定されたステータコア、（９）はボビン（７）の中央空
洞に滑動自在に挿入されたプランジャ、（１０）はプラ
ンジャ（９）の中央孔（９ａ）に中央肉厚部（１０ａ）
が嵌装された弾性体で、外周薄肉部（１０ｂ）がプラン
ジャ（９）のステータコア（８）伸ｊにはみ出すように
プランジャ（９）に焼付けられている。（１１）は弾性
体（１０）の凹み（１０ｃ）とステータコア（８）の端
面（８ａ）の凹み（８ｂ）との間に装入したバネ、（１
２）はハウジング（３）に配置さ゛ れたターミナルで
、コイル（６）に接続されている。[Prior Art] A conventional solenoid valve will be explained with reference to FIGS. 9 and 10. 9 is a longitudinal side view, and FIG. 10 is a sectional view taken along line xx in FIG. 9. In the figure, (1) indicates fluid passages (A) and (B).
), (2) is a magnetic path plate for reducing leakage magnetic flux, (3) is a housing attached to the valve seat (1) via the magnetic path plate (2) by a yoke (4), (5) is an O-ring, (6) is a resin bobbin (
7) and is fitted inside the housing (3). (8) is a stator core fixed to the central cavity of the bobbin (7), (9) is a plunger slidably inserted into the central cavity of the bobbin (7), and (10) is a central hole (9a) of the plunger (9). ) with central thick part (10a)
The elastic body is fitted with a thin outer peripheral portion (10b) that is baked into the plunger (9) so that it protrudes into the stator core (8) of the plunger (9). (11) is a spring inserted between the recess (10c) of the elastic body (10) and the recess (8b) of the end surface (8a) of the stator core (8);
2) is a terminal placed in the housing (3) and connected to the coil (6).
コイル（６）に通電されていない時には、第９図、第１
０図に示すようにバネ（１１）によってプランジャ（９
）がステータコア（８）の端面（８ａ）から離れている
ので、プランジャ（９）によって弾性体（１０）が流体
通路（Ａ）を閉止する。そして、ターミナル（１２）を
通してコイル（６）に通電されると、プランジャ（９）
がステータコア（８）の端面（８ａ）に引き寄せられる
ので、流体通路（Ａ）が開放され、両流体通路（Ａ＞、
（Ｂ）が連通ずる。When the coil (6) is not energized, Fig. 9, Fig. 1
As shown in Figure 0, the plunger (9) is moved by the spring (11).
) is away from the end face (8a) of the stator core (8), so the plunger (9) causes the elastic body (10) to close the fluid passage (A). When the coil (6) is energized through the terminal (12), the plunger (9)
is attracted to the end surface (8a) of the stator core (8), so the fluid passage (A) is opened and both fluid passages (A>,
(B) is connected.
［発明が解決しようとする課題］
上記のような従来の電磁弁では、プランジャ（９）が吸
引されるとき、プランジャ（９）は弾性体（１０）の外
周薄肉部（Ｊｏｂ）を介してステータコア（８）の端面
（８ａ）と当接するため、この衝突時の音が極めて大き
く騒音が生じるという問題点があった。[Problems to be Solved by the Invention] In the conventional solenoid valve as described above, when the plunger (9) is attracted, the plunger (9) is attached to the stator core through the thin outer peripheral part (Job) of the elastic body (10). Since it comes into contact with the end surface (8a) of (8), there is a problem in that the sound at the time of this collision is extremely loud and noise is generated.
この発明はかかる問題点を解消するためになされたもの
で、プランジャの吸引時に弾性体の中央肉厚部をまずス
テータコアに当接させるという簡単な構造によりプラン
ジャのステータコアへの衝突音による騒音を大幅に低減
させることのできる安価で静かな耐久性に優れる電磁弁
を得ることを目的とする。This invention was made to solve this problem, and has a simple structure in which the central thick part of the elastic body first comes into contact with the stator core when the plunger is suctioned, thereby greatly reducing the noise caused by the impact of the plunger on the stator core. The purpose of the present invention is to obtain an inexpensive, quiet, and highly durable solenoid valve that can reduce the amount of noise.
この発明に係る電磁弁は、プランジャの吸引時に弾性体
の中央肉厚部がまずステータコアに当接するようにした
ものである。In the electromagnetic valve according to the present invention, the central thick portion of the elastic body first comes into contact with the stator core when the plunger is sucked.
［作用］
この発明においては、プランジャの吸引時に弾性体の中
央肉厚部がまずステータコアに当接するので、このとき
の衝突エネルギーを弾性体の中央肉厚部が吸収し、衝突
音が低減される。[Function] In this invention, the central thick part of the elastic body first contacts the stator core when the plunger is sucked, so the central thick part of the elastic body absorbs the collision energy at this time, reducing collision noise. .
［発明の実施例１
この発明の一実施例を第１図、第２図について説明する
。第１図は縦断側面図、第２図は第１図の要部拡大図で
あり、前記従来のものと同一または相当部分には同一符
号を付して説明を省略する。図において、（１３）はス
テータコア（８）の凹み（８ｂ）に基部（１３ａ）を工
大固定したビンで、先端（１３ｂ）が弾性体（１０）の
凹み（１０ｃ）内に挿入されて中央肉厚部（１０ａ）に
当接する位置に対向されている。[Embodiment 1 of the Invention An embodiment of the invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a longitudinal sectional side view, and FIG. 2 is an enlarged view of the main parts of FIG. 1. Portions that are the same as or corresponding to those of the prior art are designated by the same reference numerals and their explanations will be omitted. In the figure, (13) is a bottle whose base (13a) is fixed to the recess (8b) of the stator core (8), and the tip (13b) is inserted into the recess (10c) of the elastic body (10) and the center wall is inserted into the recess (10c) of the elastic body (10). They are opposed to each other at a position where they abut against the thick portion (10a).
このビン（１３）のステータコア（８）の端面（８ａ）
からの突出長は、弾性体（ｌＯ）の中央肉厚部（１，０
ａ ）がビン（１３）の先端（１３ｂ）に当接した後、
弾性体（１０）が一定量変形すると弾性体（１０）の外
周薄肉部（Ｊｏｂ）が続いてステータコア（８）の端面
（８ａ）に当接するように設定しである。従って、プラ
ンジャ（９）が吸引されたとき、弾性体（１０）の中央
肉厚部（１０ａ）がまずステータコア（８）と一体のビ
ン（１３）の先端（１３ｂ）に当接し、両者の衝突エネ
ルギーが弾性体（１０）の中央肉厚部（１０ａ）により
吸収されるので、衝突音が低減される。そし、て弾性体
（１０）の外周薄肉部（１０ｂ）とステータコア（８）
の端面（８ａ）との当接により大きくなった電磁力に対
処するので、面圧が低減されかつ耐久性が十分となる。End face (8a) of the stator core (8) of this bottle (13)
The protrusion length from the center thick part (1,0
a) comes into contact with the tip (13b) of the bottle (13),
It is set so that when the elastic body (10) deforms by a certain amount, the thin outer peripheral portion (Job) of the elastic body (10) subsequently comes into contact with the end surface (8a) of the stator core (8). Therefore, when the plunger (9) is attracted, the central thick part (10a) of the elastic body (10) first comes into contact with the tip (13b) of the bottle (13) that is integrated with the stator core (8), and the two collide. Since the energy is absorbed by the central thick portion (10a) of the elastic body (10), the collision sound is reduced. Then, the thin outer peripheral portion (10b) of the elastic body (10) and the stator core (8)
Since the electromagnetic force increased due to contact with the end face (8a) of is coped with, surface pressure is reduced and durability is sufficient.
上記実施例ではステータコア（８）にビン（１３）を固
定して端面（８ａ）を弾性体（１０）の中央肉厚部（１
０ａ）に近接させるものを示したが、第３図に示すよう
にステータコア（８）の端面（８ａ）に突起（８Ａ）を
一体向に形成しても同様の効果が得られる９なお、この
突起（８Ａ）を非磁性体とすれば電磁弁の作動が円滑と
なり良好な結果が得られる。In the above embodiment, the bottle (13) is fixed to the stator core (8) and the end surface (8a) is attached to the center thick part (1) of the elastic body (10).
0a), the same effect can be obtained by forming the protrusions (8A) in one direction on the end surface (8a) of the stator core (8) as shown in FIG. If the protrusion (8A) is made of a non-magnetic material, the solenoid valve will operate smoothly and good results will be obtained.
上記各実施例ではステータコア（８）側のビン（１３）
あるいは突起（８Ａ）によって端面（８ａ）を弾性体（
１０）の中央肉厚部（１０ａ）に近接させるものを示し
たが、第４図、第５図に示すように弾性体（１０）の中
央肉厚部（１０ａ）に突起（ＩＯＡ）を設けて中央肉厚
部（１０ａ）をステータコア（８）の端面（８ａ）に近
づけさせても同様の効果が得られる。In each of the above embodiments, the bin (13) on the stator core (8) side
Alternatively, the end surface (8a) is connected to the elastic body (
10), but as shown in FIGS. 4 and 5, a protrusion (IOA) is provided on the central thick portion (10a) of the elastic body (10). The same effect can be obtained by moving the central thick portion (10a) closer to the end surface (8a) of the stator core (8).
以上の実施例では２方電磁弁（１通路の開閉のみ）につ
いて説明したが、第６図〜第８図に示すように３方電磁
弁（通路の切換えが可能）にも適用できる。この場合ス
テータコア（８）の凹み（ｓｂ）に流体通路（Ｃ）を設
け、ビン（１３）の基部（１３ａ）に溝（１３ｃ）を設
けておいてビン（１３）をステータコア（８）の凹み（
８ｂ）に圧入固定したときにこの溝（１３ｃ）により流
体通路（Ｃ）が他の流体通路（Ａ）、（Ｂ）と連通ずる
ようにしておく。In the above embodiments, a two-way solenoid valve (opening/closing only one passage) has been described, but the present invention can also be applied to a three-way solenoid valve (the passage can be switched) as shown in FIGS. 6 to 8. In this case, a fluid passage (C) is provided in the recess (sb) of the stator core (8), a groove (13c) is provided in the base (13a) of the bottle (13), and the bottle (13) is inserted into the recess of the stator core (8). (
8b), the groove (13c) allows the fluid passage (C) to communicate with the other fluid passages (A) and (B).
［発明の効果］
以上のように、この発明によればプランジャの吸引時に
弾性体の中央肉厚部をまずステータコアに当接させると
いう簡単な構造によりプランジャのステータコアへの衝
突音による騒音を大幅に低減させることができ、安価で
静かな耐久性に優れるものが得られるという効果がある
。[Effects of the Invention] As described above, according to the present invention, the noise caused by the impact of the plunger on the stator core can be significantly reduced by the simple structure in which the central thick part of the elastic body is first brought into contact with the stator core when the plunger is suctioned. This has the effect of producing a product that is inexpensive, quiet, and has excellent durability.
第１図はこの発明の一実施例を示す縦断側面図、第２図
は第１図の要部拡大図、第３図はこの発明の他の実施例
を示す一部破断の側面図、第４図はこの発明のさらに異
なる実施例を示す一部破断の側面図、第５図は第４図の
要部拡大図、第６図はこの発明のさらに異なる実施例を
示す一部破断の側面図、第７図は第６図の要部拡大図、
第８図は第７図の線■−■の断面図、第９図は従来のも
のを示す縦断側面図、第１０図は第９図の線Ｘ−Ｘの断
面図である。
図において、（Ａ）、（Ｂ）、（Ｃ）は流体通路、（１
）はバブルシート、（２）は磁路板、（３）はハウジン
グ、（４）はヨーク、（６）はコイル、（７）はボビン
、（８）はステータコア、（８ａ）はステータコア（８
）の端面、（９）はプランジャ、（９ａ）はプランジャ
（９）の中央孔、（１０）は弾性体、（１０ａ）は弾性
体（ｌＯ）の中央肉厚部、（１０ｂ）は弾性体（１０）
の外周薄肉部、（１１）はバネを示す。
なお、図中同一符号は同一または相当部分を示す。
代理人 弁理士 大 岩 増 雄町２へ電マ（
ｈシミ偽
１ ′
第２図
第５図FIG. 1 is a vertical sectional side view showing one embodiment of the present invention, FIG. 2 is an enlarged view of the main part of FIG. 1, and FIG. 3 is a partially cutaway side view showing another embodiment of the invention. 4 is a partially cutaway side view showing still another embodiment of the present invention, FIG. 5 is an enlarged view of the main part of FIG. 4, and FIG. 6 is a partially cutaway side view showing still another embodiment of the present invention. Figure 7 is an enlarged view of the main part of Figure 6,
FIG. 8 is a cross-sectional view taken along the line ■--■ in FIG. 7, FIG. 9 is a vertical side view showing the conventional device, and FIG. 10 is a cross-sectional view taken along the line X--X in FIG. In the figure, (A), (B), and (C) are fluid passages, (1
) is a bubble sheet, (2) is a magnetic path plate, (3) is a housing, (4) is a yoke, (6) is a coil, (7) is a bobbin, (8) is a stator core, and (8a) is a stator core (8).
), (9) is the plunger, (9a) is the center hole of the plunger (9), (10) is the elastic body, (10a) is the central thick part of the elastic body (IO), (10b) is the elastic body (10)
The thin outer peripheral portion (11) indicates a spring. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Patent Attorney Masu Oiwa Telephone to Omachi 2 (
Fake h stain 1' Fig. 2 Fig. 5
Claims (1)
シートに磁路板を介してヨークにより取付けられるハウ
ジングと、ボビンに巻回された状態で前記ハウジング内
に嵌装されるコイルと、前記ボビン内に固定されたステ
ータコアと、このステータコアと接離するように前記ボ
ビン内に滑動自在に挿入されたプランジャと、このプラ
ンジャの中央孔に中央肉厚部が嵌装されて前記流体通路
の弁体として作用する弾性体と、この弾性体の外周薄肉
部が前記ステータコアの端面から離れる方向に前記プラ
ンジャを付勢するバネとを有する電磁弁において、前記
コイルの通電により前記プランジャが前記バネに抗して
前記ステータコア側に吸引されたとき前記弾性体の中央
肉厚部がまず前記ステータコアに当接するようにしたこ
とを特徴とする電磁弁(1) A valve seat that constitutes a fluid passage, a housing that is attached to the valve seat by a yoke via a magnetic path plate, a coil that is wound around a bobbin and fitted into the housing, and the bobbin a stator core fixed therein, a plunger slidably inserted into the bobbin so as to come into contact with and separate from the stator core, and a central thick portion fitted into the central hole of the plunger to form a valve body for the fluid passage. In the electromagnetic valve, the electromagnetic valve has an elastic body that acts as an elastic body, and a spring that biases the plunger in a direction in which a thin outer peripheral portion of the elastic body moves away from an end surface of the stator core. The solenoid valve is characterized in that when the elastic body is attracted toward the stator core, the central thick part of the elastic body first comes into contact with the stator core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63154134A JPH0718501B2 (en) | 1988-06-21 | 1988-06-21 | solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63154134A JPH0718501B2 (en) | 1988-06-21 | 1988-06-21 | solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01320383A true JPH01320383A (en) | 1989-12-26 |
| JPH0718501B2 JPH0718501B2 (en) | 1995-03-06 |
Family
ID=15577638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63154134A Expired - Lifetime JPH0718501B2 (en) | 1988-06-21 | 1988-06-21 | solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718501B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0250579U (en) * | 1988-10-04 | 1990-04-09 | ||
| JPH03121280U (en) * | 1990-03-27 | 1991-12-12 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2588042A4 (en) | 2010-06-29 | 2015-03-18 | Artventive Medical Group Inc | Reducing flow through a tubular structure |
| US8984733B2 (en) | 2013-02-05 | 2015-03-24 | Artventive Medical Group, Inc. | Bodily lumen occlusion |
-
1988
- 1988-06-21 JP JP63154134A patent/JPH0718501B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0250579U (en) * | 1988-10-04 | 1990-04-09 | ||
| JPH03121280U (en) * | 1990-03-27 | 1991-12-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718501B2 (en) | 1995-03-06 |
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