JPH0221083A - Solenoid valve - Google Patents
Solenoid valveInfo
- Publication number
- JPH0221083A JPH0221083A JP17153688A JP17153688A JPH0221083A JP H0221083 A JPH0221083 A JP H0221083A JP 17153688 A JP17153688 A JP 17153688A JP 17153688 A JP17153688 A JP 17153688A JP H0221083 A JPH0221083 A JP H0221083A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- movable valve
- iron core
- fixed iron
- valve seat
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 210000002445 nipple Anatomy 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000005281 excited state Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、電磁コイルの通電により可動弁体を開閉動
作させる電磁弁に関し、特に可動弁体の磁気吸着による
異音発生防止にかかわる。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a solenoid valve that opens and closes a movable valve body by energizing an electromagnetic coil, and particularly relates to prevention of abnormal noise caused by magnetic attraction of the movable valve body.
第３図及び第４図は、従来の電磁弁の縦断面１苅及び水
モ断面図である。図において、１は電磁コイルで、合成
樹脂製のボビン２に巻回されており、接続用端子３が出
されている。電磁コイル１及びボビン２の外周は合成樹
脂成形による外装部材４で覆われている。外装部材４に
はボビン２との接合面の一端にシール溝４ａが設けられ
、他端部にシール？ｆＩｔ４ｂが設けられており、磁性
材からなる磁路板７が当てられている０合成樹脂製のバ
ルプシート５は、第１のニップル５ａ 、君２のニップ
ル５ｂ。FIG. 3 and FIG. 4 are longitudinal cross-sectional views of a conventional solenoid valve and a cross-sectional view of a conventional electromagnetic valve. In the figure, reference numeral 1 denotes an electromagnetic coil, which is wound around a bobbin 2 made of synthetic resin, from which a connection terminal 3 is exposed. The outer circumferences of the electromagnetic coil 1 and the bobbin 2 are covered with an exterior member 4 made of synthetic resin. The exterior member 4 is provided with a seal groove 4a at one end of the joint surface with the bobbin 2, and a seal groove 4a at the other end. The bulb sheet 5 made of synthetic resin is provided with fIt4b and the magnetic path plate 7 made of a magnetic material is applied to the first nipple 5a and the nipple 5b of you 2.
弁座５Ｃ及び内部通路５ｄが形成されている。A valve seat 5C and an internal passage 5d are formed.
６はボビン２の内径部にはめ込まれた固定鉄心で、先端
が吸引端６ａをなし、中心に穴部６ｂが設けられている
。８は磁性材からなり一端の円板部８ａが固定鉄心６を
押付は固定するヨー〃で１円周方向に対し１対の胴部８
ｂが外装部材４の外周に沿い軸方向に延び、磁路板７に
接し磁路を形成するとともに、他瑞部８Ｃがバルブシー
ト５の段部をかしめ付けており、ボビン２と外装部材４
との結合体とバルブシート５とを磁路板７を挾んで一体
的に結合している０
９はボビン２の内径部の他端側に軸方向に可動に挿入さ
れ、流体心路の開閉をする可動弁体で、磁性材からなり
可動鉄心をなしている０可動弁体９の一端にはシール面
体１０ａが固着され弁座５Ｃに当接するようにし、他端
にはシール面体１ｏｔ）が固着され吸引端６ａに当接す
るようにしている。非磁性のシール面体１０ａ 、 ｌ
ｏｂはゴム材からなり、一体に連続して形成されている
。１１は固定鉄心６と可動弁体９との間に装着された圧
縮ばねで、可動弁体９を弁座５Ｃに閉じるよう付勢して
おり、弾性圧縮部材をなす。１２．１３はシール溝４ａ
、４ｂにはめられたシール部材、 １４はバルブシート
５端にはめられたシール部材、１５は固定鉄心６の胴部
にはめられたシール部材である。Reference numeral 6 denotes a fixed iron core fitted into the inner diameter portion of the bobbin 2, the tip of which forms a suction end 6a, and a hole 6b provided in the center. Reference numeral 8 is made of a magnetic material, and a disk portion 8a at one end is a yaw that presses and fixes the fixed iron core 6, and there are one pair of body portions 8 in one circumferential direction.
b extends in the axial direction along the outer periphery of the exterior member 4 and contacts the magnetic path plate 7 to form a magnetic path, and the other welded portion 8C caulks the stepped portion of the valve seat 5, thereby connecting the bobbin 2 and the exterior member 4.
09, which integrally connects the valve seat 5 and the valve seat 5 with the magnetic path plate 7 in between, is inserted movably in the axial direction into the other end of the inner diameter of the bobbin 2, and opens and closes the fluid core path. A movable valve body 9 made of magnetic material and forming a movable iron core has a seal face piece 10a fixed to one end of the movable valve body so as to come into contact with the valve seat 5C, and a seal face piece 10a is fixed to the other end. The suction end 6a is brought into contact with the suction end 6a. Non-magnetic seal face pieces 10a, l
The ob is made of a rubber material and is integrally and continuously formed. Reference numeral 11 denotes a compression spring installed between the fixed core 6 and the movable valve body 9, which urges the movable valve body 9 to close against the valve seat 5C, and serves as an elastic compression member. 12.13 is the seal groove 4a
, 4b; 14 is a sealing member fitted to the end of the valve seat 5; 15 is a sealing member fitted to the body of the fixed core 6.
上記のように構成された電磁弁は、例えば自動車の排気
ガス、あるいはエンジン制御用として、蓄電池などを電
源として制御装置からの動作信号を受けて応動し、制御
流体の切換えを行う。すなわち、信号電流が流入され電
磁コイル１に超電されると、固定鉄心６．ヨーク８．磁
路板７．可動弁体１０に磁束が通り、可動弁体９が圧縮
ばね１１のばね王に抗し固定鉄心６に吸引され、吸引端
６ａにシール面体１０′ｂを介し当接するとともに、弁
座５Ｃからシール面体１０ａが開離し、第１のニップル
５ａと第２のニップル５ｂ間が連通する。The electromagnetic valve configured as described above is used, for example, for automobile exhaust gas or engine control, and uses a storage battery as a power source to respond to an operation signal from a control device and switch the control fluid. That is, when a signal current flows into the electromagnetic coil 1 and the fixed iron core 6. York 8. Magnetic path plate7. A magnetic flux passes through the movable valve body 10, and the movable valve body 9 is attracted to the fixed core 6 against the spring force of the compression spring 11, and comes into contact with the suction end 6a via the seal face body 10'b, and is sealed from the valve seat 5C. The face piece 10a is separated, and the first nipple 5a and the second nipple 5b communicate with each other.
また、電磁コイル１への超電を断つと、電磁吸引がなく
なり、圧縮ばね１１のばね力により可動弁体９は復帰移
動し、吸引端６ａからシール面体１０ｂが離れ、弁座５
Ｃにシール面体１０ａが閉じ、第１のニップル５ａと第
２のニップル５ｂ間の流路を断つ０〔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、電磁コイル１０曲直に
より励磁されると、可動弁体９が磁気吸引され圧縮ばね
１１のばね圧に抗し、薄膜のシール面体１０ｂを介し固
定鉄心６の吸引端６ａに急激に当接するため、その衝撃
で冒い当接音を発生するという問題点があった。Furthermore, when the supercurrent to the electromagnetic coil 1 is cut off, the electromagnetic attraction disappears, the movable valve body 9 moves back due to the spring force of the compression spring 11, the seal face body 10b is separated from the suction end 6a, and the valve seat 5
The seal face piece 10a closes at C, cutting off the flow path between the first nipple 5a and the second nipple 5b. [Problem to be Solved by the Invention] In the conventional solenoid valve as described above, the 10 bends of the solenoid coil When excited, the movable valve body 9 is magnetically attracted, resists the spring pressure of the compression spring 11, and suddenly comes into contact with the suction end 6a of the fixed iron core 6 via the thin film seal face 10b. There was a problem in that it generated contact noise.
この発明は、このような問題点を解決するためになされ
たもので、可動弁体の磁気吸引による固定鉄心の吸引端
との当接音の余生をなくした電磁弁を得ることを目的と
している。This invention was made to solve these problems, and aims to provide a solenoid valve that eliminates the residual noise of contact between the movable valve body and the suction end of the fixed core due to magnetic attraction. .
この発明にかかる電磁弁は、可動弁体と固定鉄心との間
に、弾性圧縮部材として金属ベローを装着し、可動弁体
が磁気吸引されても、可動弁体の端部が固定鉄心の吸引
端に完全に吸着されず若干のエアギャップが残るように
、金属ベローの圧縮反力を大きくしたものであるっ
〔作用〕
この発明においては、電磁コイルに通電しないときは、
可動弁体は金属ベローによるばね圧により復帰位置に移
動され、バルブシートの弁座を閉じている。を磁コイル
に通電すると、可動弁体は磁気吸引されるが、金属ベロ
ーの圧縮反力の増大により固定鉄心の吸引端とは若干の
エアギャップが残され、当接することなく、従来のよう
な当接音の発生はなくなる。In the solenoid valve according to the present invention, a metal bellows is installed as an elastic compression member between the movable valve body and the fixed iron core, so that even if the movable valve body is magnetically attracted, the end of the movable valve body is not attracted to the fixed iron core. The compression reaction force of the metal bellows is increased so that the ends are not completely attracted and a slight air gap remains. [Function] In this invention, when the electromagnetic coil is not energized,
The movable valve body is moved to the return position by spring pressure from the metal bellows, closing the valve seat of the valve seat. When the magnetic coil is energized, the movable valve body is magnetically attracted, but due to the increase in the compression reaction force of the metal bellows, a slight air gap is left between the suction end of the fixed iron core and the movable valve body does not come into contact with the suction end as in the conventional case. The contact noise will no longer occur.
〔実施例〕
第１図はこの発明による電磁弁の一実施例を示す４′Ｉ
ｆｒ面図であり、１〜８ 、１２〜１５ 、４ａ、４ｂ
。[Embodiment] Fig. 1 shows an embodiment of a solenoid valve according to the present invention.
1-8, 12-15, 4a, 4b
.
５ａ 〜５ｄ、６ａ、６ｂ、８ａは上記従来の装置と同
一のものである。２０はボビン２の内径部の他端側圧軸
方向に可動に挿入され、流体通路の開閉をする可動弁体
で、磁性材からなり可動鉄心をなしている。可動弁体２
０の弁座５Ｃに対応する一端には、ゴム材などからなる
シール面体２１が接着されている。可動弁体２０の他端
には中心に穴部２０ａか設けられている。可動弁体２０
と固定鉄心６間には、非＠性ばね材からなる金属ベロー
２２が穴部６ａ、２０ａに入れられて装着され、弾性圧
縮部材をなしている。5a to 5d, 6a, 6b, and 8a are the same as the conventional device described above. A movable valve body 20 is movably inserted in the pressure axis direction of the other end of the inner diameter portion of the bobbin 2 to open and close a fluid passage, and is made of a magnetic material and forms a movable iron core. Movable valve body 2
A sealing face body 21 made of a rubber material or the like is adhered to one end corresponding to the valve seat 5C. A hole 20a is provided at the center of the other end of the movable valve body 20. Movable valve body 20
A metal bellows 22 made of a non-@-type spring material is inserted between the holes 6a and 20a and is installed between the fixed iron core 6 and the fixed iron core 6, thereby forming an elastic compression member.
金属ベロー２２部を第２図に拡大図で示す。無励磁状態
では、金属ベロー２２のばね圧によシ可動弁体２０はバ
ルブシート５の弁座５ｃにシール面体２１を介し閉鎖復
帰させている。励磁状態では、可動弁体２０は固定鉄心
６１ｉ１１１へ磁気吸引されるが、金属ベロー２２は増
大する圧縮反力により、磁気吸引力に抗して可動弁体２
０を固定鉄心６の吸引端６ａとは若干のエアギャップｇ
′ｆｔ残した位置に受止めるように設定しである。The metal bellows 22 is shown in an enlarged view in FIG. In the non-excited state, the spring pressure of the metal bellows 22 causes the movable valve body 20 to return to its closed position on the valve seat 5c of the valve seat 5 via the seal face body 21. In the excited state, the movable valve body 20 is magnetically attracted to the fixed iron core 61i111, but the metal bellows 22 resists the magnetic attraction force due to the increasing compression reaction force, and the movable valve body 20
There is a slight air gap g between 0 and the suction end 6a of the fixed iron core 6.
It is set so that it will be received at the position where ft is left.
可動弁体２ｏと固定鉄心６とのエアギャップｇは、例え
ば、無励磁で可動弁体２０が弁座５ｃを閉じている状態
では約１ｍｍで、励磁で可動弁体２０が磁気吸引されて
いる状態では約０．１〜０．２ｍｍにしである。このよ
うに、可動弁体２０の移動距離が小さい場合、従来の圧
縮ばね１１では、励＠−状態で可動弁体２０を固定鉄心
６と約０．１ｃｎｍのエアギャップで受止めておくこと
ばできない。しかし、金属ベロー２２Ｖｉ圧縮に対する
負荷能力は大きく、可動弁体２０を磁気吸引力に抗し約
０．１ｍｍのエアギャップに受止めることができる。ま
た、金属ベロー２２の圧縮により内部空気が圧縮され、
可動弁体２０の磁気吸引による加速度に対し抵抗し、動
きを緩和する。The air gap g between the movable valve body 2o and the fixed iron core 6 is, for example, approximately 1 mm when the movable valve body 20 closes the valve seat 5c without energization, and when the movable valve body 20 is energized, it is magnetically attracted. In this state, the diameter is about 0.1 to 0.2 mm. In this way, when the moving distance of the movable valve body 20 is small, the conventional compression spring 11 cannot receive the movable valve body 20 in the excited @- state with an air gap of approximately 0.1 cnm from the fixed iron core 6. . However, the metal bellows 22Vi has a large compression load capacity, and the movable valve body 20 can resist the magnetic attraction force and be received in an air gap of about 0.1 mm. In addition, the internal air is compressed by the compression of the metal bellows 22,
It resists the acceleration caused by magnetic attraction of the movable valve body 20 and eases its movement.
上記一実施例の電磁弁において、混磁コイル１に通電す
ると可動弁体２０は固定鉄心６側に磁気吸引されるが、
金属ベロー２２の圧縮はね圧の増加により、所定の小さ
いエアギャップ（例えば０．１〜０．２ｍｍ）で受止め
られ、固定鉄心６の吸引端６ａに当接しないようにして
いる。In the solenoid valve of the above embodiment, when the mixed magnetic coil 1 is energized, the movable valve body 20 is magnetically attracted to the fixed iron core 6 side.
The compression of the metal bellows 22 is received by a predetermined small air gap (for example, 0.1 to 0.2 mm) due to the increase in spring pressure, and is prevented from coming into contact with the suction end 6a of the fixed iron core 6.
以上のように、この発明によれば、可動弁体と固定鉄心
との間に金属ベローを装着し、無励磁状態では可動弁体
をバルブシートの弁座に閉じるように付勢し、励磁によ
り可動弁体が固定鉄心側に磁気吸引されると、金属ベロ
ーの圧縮ばね圧による反抗により、小さいエアギャップ
を残して受止めるようにしたので、可動鉄心の磁気吸引
にょる固定子鉄心との当接音の定住がなくされ、騒音が
防止される。As described above, according to the present invention, a metal bellows is installed between the movable valve body and the fixed iron core, and when the movable valve body is not energized, the movable valve body is urged to close against the valve seat of the valve seat, and when energized, the metal bellows is When the movable valve body is magnetically attracted to the fixed core side, the compression spring pressure of the metal bellows causes a reaction, leaving a small air gap. The settling of contact sounds is eliminated and noise is prevented.
【図面の簡単な説明】
第１図はこの発明による電磁弁の一実施例の縦Ｉ！ｆｒ
面図、第２１ズは第１図の金属ベロ一部の拡大断面図、
第３図は従来の電磁弁の縦断面図、第４図は第３１劇の
電磁弁の■−ＩＶ槻における断面１癩であるＯ
１・・・電磁コイル、２・・・ボビン、４・・・外装部
材。
５・・・パルプシー）、５ａ、５ｂ・・ニップル ６・
・・固定鉄心、６ａ・・・吸引端、７・・・磁路板、８
・・・ヨーク、２０・・・可動弁体、２２・・・金属ベ
ロー０なお、］￥Ｉ中同−符号は同−又は相当部分を示
す。
第１図
第２図[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 shows a vertical view of an embodiment of a solenoid valve according to the present invention. fr
Top view, No. 21 is an enlarged sectional view of a part of the metal tongue in Fig. 1,
Fig. 3 is a vertical cross-sectional view of a conventional solenoid valve, and Fig. 4 is a cross-sectional view of the solenoid valve in the 31st episode at ■-IV.・Exterior parts. 5... Pulp Sea), 5a, 5b... Nipple 6.
...Fixed iron core, 6a... Attraction end, 7... Magnetic path plate, 8
. . . Yoke, 20 . . . Movable valve body, 22 . Figure 1 Figure 2
Claims (1)
及び電磁コイルの外周を囲つて形成された外装部材と、 外部への流路をなす複数のニツプルと内部通路及び弁座
が設けられており、一端に磁路板を介在させ上記外装部
材の他端部に結合される、合成樹脂材からなるバルブシ
ートと、 上記ボビンの内径部にはめ込まれた固定鉄心と、この固
定鉄心の外端部と上記外装部材の外端部とに一端部が当
てられ、他端部で上記バルブシートを保持するヨークと
、 上記バルブシートの弁座と上記固定鉄心の吸引端との間
に軸方向に可動に配置された可動弁体と、この可動弁体
と上記固定鉄心との間に装着され、可動弁体を上記バル
ブシートの弁座に閉じさせる弾性圧縮部材とからなる電
磁弁において、 上記弾性圧縮部材はばね性を有する非磁性の金属ベロー
からなり、上記可動弁体が上記固定鉄心側に磁気吸引さ
れると、ベローの圧縮力により双方間にエアギヤツプを
残して可動弁体を受止めるようにしたことを特徴とする
電磁弁。[Claims] A bobbin around which an electromagnetic coil is wound, an exterior member formed around the bobbin and the electromagnetic coil, and a plurality of nipples, internal passages, and valves that form flow paths to the outside. a valve seat made of a synthetic resin material, which is connected to the other end of the exterior member with a magnetic path plate interposed at one end; a fixed iron core fitted into the inner diameter of the bobbin; a yoke, one end of which is placed against the outer end of the fixed core and the outer end of the exterior member, and the other end of which holds the valve seat; An electromagnetic device comprising a movable valve body arranged to be movable in the axial direction between the two, and an elastic compression member installed between the movable valve body and the fixed iron core to close the movable valve body to the valve seat of the valve seat. In the valve, the elastic compression member is made of a non-magnetic metal bellows having spring properties, and when the movable valve body is magnetically attracted to the fixed iron core side, the compression force of the bellows leaves an air gap between the two and compresses the movable valve. A solenoid valve characterized by being adapted to receive the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17153688A JPH0221083A (en) | 1988-07-08 | 1988-07-08 | Solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17153688A JPH0221083A (en) | 1988-07-08 | 1988-07-08 | Solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221083A true JPH0221083A (en) | 1990-01-24 |
Family
ID=15924944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17153688A Pending JPH0221083A (en) | 1988-07-08 | 1988-07-08 | Solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3261103A4 (en) * | 2015-02-18 | 2018-10-31 | Mikuni Corporation | Electromagnetic solenoid |
-
1988
- 1988-07-08 JP JP17153688A patent/JPH0221083A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3261103A4 (en) * | 2015-02-18 | 2018-10-31 | Mikuni Corporation | Electromagnetic solenoid |
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