JPH0221668Y2 - - Google Patents
Info
- Publication number
- JPH0221668Y2 JPH0221668Y2 JP1983021573U JP2157383U JPH0221668Y2 JP H0221668 Y2 JPH0221668 Y2 JP H0221668Y2 JP 1983021573 U JP1983021573 U JP 1983021573U JP 2157383 U JP2157383 U JP 2157383U JP H0221668 Y2 JPH0221668 Y2 JP H0221668Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- core
- valve seat
- cylindrical frame
- 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
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Description
【考案の詳細な説明】
本考案はガス等の流体流量を直流電源のオン−
オフ比またはオン−オフの周波数の制御により調
整可能な比例制御電磁弁の改良に関する。[Detailed explanation of the invention] This invention is a method to control the flow rate of fluid such as gas by turning on a DC power source.
This invention relates to improvements in proportional control solenoid valves that can be adjusted by controlling off-ratio or on-off frequency.
従来、流体の流量を電流によつて比例的に制御
する装置として電磁式比例制御弁が用いられてい
るが、その一例として第１図に示す構成が知られ
ている（実開昭55−163582号公報参照）。すなわ
ち、１は流体入口、２は流体出口、３は弁座であ
つて、これらを一体に有する弁ボデイ４の図上に
おいて上方に（以下、「上」または「下」の表示
はすべて「図上において上」または「図上におい
て下」を意味する）据え付けられたコイルケース
５の内部に、コア６、ボビン７ならびにコイル８
が収納され、該コア６の下側に軸方向に移動自在
な弁体９が取り付けられている。この弁体９は後
記スプリング１２に対するガイドともなる芯棒に
対して環状の磁性体１０を固着してなり、さらに
該磁性体１０上面に非磁性ステム１１を固着して
なる。１２はこの弁体９を下方に向かつて押圧す
るスプリング、１３はダイヤフラムである。 Conventionally, an electromagnetic proportional control valve has been used as a device to proportionally control the flow rate of a fluid using an electric current, and one example of such a valve is known as the configuration shown in Fig. (see publication). In other words, 1 is a fluid inlet, 2 is a fluid outlet, and 3 is a valve seat. A core 6, a bobbin 7 and a coil 8 are installed inside the installed coil case 5 (meaning ``top in the figure'' or ``bottom in the figure'').
is housed in the core 6, and a valve body 9 that is movable in the axial direction is attached to the lower side of the core 6. This valve body 9 is formed by fixing an annular magnetic body 10 to a core rod which also serves as a guide for a spring 12, which will be described later, and further by fixing a non-magnetic stem 11 to the upper surface of the magnetic body 10. 12 is a spring that presses the valve body 9 downward, and 13 is a diaphragm.
上記の構成において、コイル８に電流が流れて
いないときは、弁体９がスプリング１２の力によ
つて弁座３に押し付けられており、弁は閉止して
いる。 In the above configuration, when no current is flowing through the coil 8, the valve body 9 is pressed against the valve seat 3 by the force of the spring 12, and the valve is closed.
コイル８に通電を開始すると、発生する磁力が
弁体９を上方へ持ち上げるように作用し、弁体９
は弁座３より浮上することになる。したがつて電
流の大きさによつて弁体９の浮上距離を調整でき
るので、流体出口２より流出する流体流量を任意
に制御することができる。 When the coil 8 starts to be energized, the generated magnetic force acts to lift the valve body 9 upward.
will float above the valve seat 3. Therefore, since the floating distance of the valve body 9 can be adjusted depending on the magnitude of the current, the flow rate of the fluid flowing out from the fluid outlet 2 can be arbitrarily controlled.
しかしながら、上記電磁弁によると、まず第１
に弁体９に対して大型の磁性体１０が取り付けら
れているために、その閉弁時において、磁路の残
留保持力によつて弁体９の復帰が遅れがちになる
欠点がある。第２に、コア６に対する弁体９の引
き離しを容易にするため、該コア６と弁体９間
の、該弁体９側には前記非磁性ステム１１が固着
されているが、これにより弁体９の重量が増加す
るとともに吸引力の低下を招き、閉弁時における
速応性が阻害される。第３に、上記理由にもとづ
く早期引き離しを確実にするために反吸引方向に
付勢した前記スプリング１２が強力な弾性に設定
されるが、これに応じてコイル８に必要以上に大
きな起磁力を付与しなければならない。また上記
電磁弁は弁体９とダイヤフラム１３によつて仕切
られる上側のチヤンバ室１４を大気開放させる通
路１５を有し、該通路１５に対する雨水等の侵入
を阻止するゴムキヤツプ１６を前記コイルケース
５に冠してなるが、当該電磁弁を高温雰囲気中に
設置する場合等には、該ゴムキヤツプ１６の材料
劣化が著しく、低寿命となつていた。 However, according to the above-mentioned solenoid valve, the first
Since a large magnetic body 10 is attached to the valve body 9, there is a drawback that the return of the valve body 9 tends to be delayed due to the residual holding force of the magnetic path when the valve is closed. Second, in order to facilitate the separation of the valve body 9 from the core 6, the non-magnetic stem 11 is fixed between the core 6 and the valve body 9 on the valve body 9 side. As the weight of the body 9 increases, the suction force decreases, and the quick response when closing the valve is inhibited. Thirdly, in order to ensure early separation based on the above-mentioned reason, the spring 12 biased in the anti-attractive direction is set to have strong elasticity, but accordingly, an unnecessarily large magnetomotive force is applied to the coil 8. Must be granted. The electromagnetic valve has a passage 15 that opens the upper chamber chamber 14 partitioned by the valve body 9 and the diaphragm 13 to the atmosphere, and a rubber cap 16 is attached to the coil case 5 to prevent rainwater from entering the passage 15. However, when the solenoid valve is installed in a high temperature atmosphere, the material of the rubber cap 16 deteriorates significantly, resulting in a shortened lifespan.
本考案は、従来例における上記問題点に鑑みて
なされたものであつて、とくに高頻度作動を要求
される電磁弁の速応性の向上を目的とし、弁座と
該弁座に対して接離する弁体の各対向面に相反す
る方向の磁極を備えた永久磁石を設け、該両永久
磁石の反磁力を利用するものである。 The present invention was devised in view of the above-mentioned problems in the conventional example, and has the purpose of improving the quick response of electromagnetic valves that are required to operate at high frequencies. Permanent magnets with magnetic poles in opposite directions are provided on each opposing surface of the valve body, and the diamagnetic force of both permanent magnets is utilized.
以下、本考案の一実施例を第２図にしたがつて
説明すると、図中２１は有底筒体を倒立させた状
態の磁性体からなる筒状フレームであり、該フレ
ーム２１の軸芯に合致してコア２２を固着し、該
コア２２の外周にボビン２３を介してコイル２４
を巻装してなる。２５は前記コイル２４の上側に
おいて筒状フレーム２１、コア２２ならびにボビ
ン２３間に嵌入された磁性体製補磁板である。２
６は流体入口２７と流体出口２８を有する弁ボデ
イであり、該ボデイ２６と筒状フレーム２１間に
環状を呈する磁性体製プレート２９が挾着され
る。該磁性体製プレート２９とボビン２３にはＯ
リング３０が圧入され、該部の気密を保持してい
る。 Hereinafter, one embodiment of the present invention will be described with reference to FIG. A coil 24 is attached to the outer periphery of the core 22 via a bobbin 23.
It is wrapped with Reference numeral 25 denotes a magnetic compensator plate fitted between the cylindrical frame 21, the core 22, and the bobbin 23 above the coil 24. 2
Reference numeral 6 denotes a valve body having a fluid inlet 27 and a fluid outlet 28, and a ring-shaped magnetic plate 29 is clamped between the body 26 and the cylindrical frame 21. The magnetic plate 29 and bobbin 23 are
A ring 30 is press-fitted to keep the area airtight.
３１は弁座である。該弁座３１は環状を呈する
フレキシブル永久磁石からなり、第３図に拡大し
て示すように上面にＮ極を配してなる。この弁座
３１に対しては、押え板３９と前記磁性体製プレ
ート２９間に挾持したダイヤフラム３２に支持さ
れる弁体３３が接離するようになる。該弁体３３
は前記ダイヤフラム３２の上側に磁性体製の可動
コア３４を有するとともに、同下側にフレキシブ
ル永久磁石３５を有し、これらを芯棒３６に結合
してなる。前記フレキシブル永久磁石３５は下面
にＮ極を配してなる。前記芯棒３６は上端コア２
２下面に形成した軸芯凹部３７に挿入し、該凹部
３７内に挿入されたスプリング３８によつて下方
に向かい押圧されている。 31 is a valve seat. The valve seat 31 is made of a flexible permanent magnet having an annular shape, and has an N pole arranged on its upper surface as shown in an enlarged view in FIG. A valve element 33 supported by a diaphragm 32 held between a presser plate 39 and the magnetic plate 29 comes into contact with and separates from the valve seat 31. The valve body 33
has a movable core 34 made of a magnetic material on the upper side of the diaphragm 32, and has a flexible permanent magnet 35 on the lower side thereof, which are connected to a core rod 36. The flexible permanent magnet 35 has an N pole arranged on its lower surface. The core rod 36 is connected to the upper end core 2
It is inserted into an axial center recess 37 formed on the lower surface of 2, and is pressed downward by a spring 38 inserted into the recess 37.
つぎの上記構成の電磁弁の作動を説明すると、
まず、コイル２４に通電していない状態では弁体
３３がスプリング３７の弾性によつて、該弁体３
３と弁座３１の両永久磁石の反磁力に抗して弁座
３１に接しており、弁は閉止している。コイル２
４に通電を開始すると、発生する磁力が該弁体３
３を上方へ引き上げるように作用して弁体３３を
弁座３１に対して離間させ、流体の流路を広める
ごとく作用する。すなわち弁体３３の移動によつ
て常時閉形の弁装置は電流値に比例して開放す
る。このとき、上記弁体３３の開放動作について
は流体入口２７側から該弁体３３を押圧する流体
圧力と上記永久磁石の反磁力が協働するため、コ
イル２４に対する通電のオン−オフに敏速に応答
する。また上記弁体３３は磁性体製可動コア３４
と永久磁石３５の組み合せからなり、従来の同大
の弁体に比して軽量化されることも上記速応性の
向上に貢献する。 The operation of the solenoid valve with the above configuration will be explained below.
First, when the coil 24 is not energized, the valve body 33 is moved by the elasticity of the spring 37.
The valve is in contact with the valve seat 31 against the diamagnetic force of both the permanent magnets 3 and the valve seat 31, and the valve is closed. coil 2
4, the generated magnetic force is applied to the valve body 3.
3 upwardly to separate the valve body 33 from the valve seat 31 and to widen the fluid flow path. That is, by moving the valve body 33, the normally closed valve device opens in proportion to the current value. At this time, regarding the opening operation of the valve body 33, the fluid pressure that presses the valve body 33 from the fluid inlet 27 side and the diamagnetic force of the permanent magnet cooperate, so that the current can be quickly turned on and off to the coil 24. respond. Further, the valve body 33 has a movable core 34 made of magnetic material.
It consists of a combination of a permanent magnet 35 and a conventional valve body of the same size, and is lighter in weight than a conventional valve body of the same size, which also contributes to the improvement in the above-mentioned quick response.
つぎに第４図は本考案の第２の実施例を示すも
のであり、第２図に示した電磁弁にチヤンバ室に
通じる大気開放流路を付設したものである。その
他の構造は第２図に示したものと共通する部分の
説明を同一の符号をもつて省略する。すなわち前
記コア２２には上下端に貫通する通路４０が穿設
されるとともに、筒状フレーム２１にはコネクタ
端子部の絶縁樹脂４１が冠せられ、該絶縁樹脂４
１底面に第２の通路４２が形成される。４３は両
通路４０，４２間に介装されるフイルタである。
かかる構成の大気開放通路によれば、従来例のゴ
ムキヤツプ１６に該当する絶縁樹脂４１がその材
質特性から耐油、耐水ならびに耐熱性に優れるた
め長期使用に耐え得る。 Next, FIG. 4 shows a second embodiment of the present invention, in which the solenoid valve shown in FIG. 2 is provided with an atmosphere-opening passage leading to the chamber. For other structures, the description of the parts common to those shown in FIG. 2 will be omitted by using the same reference numerals. That is, the core 22 has a passage 40 penetrating through its upper and lower ends, and the cylindrical frame 21 is covered with an insulating resin 41 of the connector terminal portion.
A second passage 42 is formed on the bottom surface. 43 is a filter interposed between both passages 40 and 42.
According to the atmosphere opening passage having such a structure, the insulating resin 41 corresponding to the conventional rubber cap 16 has excellent oil resistance, water resistance, and heat resistance due to its material properties, and can withstand long-term use.
本考案の比例制御電磁弁は以上説明したよう
に、従来例のごとく非磁性ステムを用いることも
なく、印加する電流に比例して動作するプランジ
ヤの応答特性が良好となり、かつ高頻度の作動に
対してもこの速応性を維持することができるの
で、ガス等流体の直流電源のオン−オフ比または
オン−オフ周波数の制御による流量調整に著効を
奏するものである。 As explained above, the proportional control solenoid valve of the present invention does not use a non-magnetic stem as in the conventional example, and the plunger has good response characteristics that operate in proportion to the applied current, and is suitable for high-frequency operation. Since this rapid response can be maintained even in the case of gases and other fluids, it is extremely effective in adjusting the flow rate by controlling the on-off ratio or on-off frequency of a DC power supply for gas or other fluids.
図面は本考案の実施例を示すものであり、第１
図は従来の電磁式比例制御弁の一例を示す断面
図、第２図は本考案の第１実施例に係る比例制御
電磁弁の断面図、第３図は同要部拡大断面図、第
４図は本考案の第２実施例に係る比例制御電磁弁
の断面図である。
２１……筒状フレーム、２２……コア、２４…
…コイル、２５……補磁板、２６……弁ボデイ、
２７……流体入口、２８……流体出口、２９……
プレート、３１……弁座、３２……ダイヤフラ
ム、３３……弁体、３４……可動コア、３５……
フレキシブル永久磁石、３６……芯棒、３８……
スプリング、４０，４２……通路、４１……絶縁
樹脂。
The drawings show an embodiment of the present invention.
The figure is a cross-sectional view showing an example of a conventional electromagnetic proportional control valve, FIG. 2 is a cross-sectional view of a proportional control solenoid valve according to the first embodiment of the present invention, FIG. The figure is a sectional view of a proportional control solenoid valve according to a second embodiment of the present invention. 21... Cylindrical frame, 22... Core, 24...
... Coil, 25 ... Compensation plate, 26 ... Valve body,
27...Fluid inlet, 28...Fluid outlet, 29...
Plate, 31... Valve seat, 32... Diaphragm, 33... Valve body, 34... Movable core, 35...
Flexible permanent magnet, 36... core rod, 38...
Spring, 40, 42... Passage, 41... Insulating resin.
Claims (1)
コアと、該コアの外周に巻装されたコイルと、前
記有底筒状フレームの底部に配置された磁性体製
補磁板と、前記有底筒状フレームの開口側に嵌入
された磁性体製プレートと、前記コアの前記有底
筒状フレームの開口側に、軸方向に移動自在に取
り付けられた弁体と、該弁体と対向する位置に配
置され、該弁体と協働して流体の流通路を開閉す
る弁座と、前記弁体を前記弁座に対して押し付け
るスプリングとを有し、前記弁体は前記コア側の
磁性体製可動コアと下部の前記弁座側のフレキシ
ブル永久磁石を結合させてなり、前記弁座はフレ
キシブル永久磁石からなり、前記弁体および前記
弁座の両永久磁石の対向面は相反する方向の磁極
をもつて構成されることを特徴とする比例制御電
磁弁。 A core fixed to the axis of a bottomed cylindrical frame made of a magnetic material, a coil wound around the outer periphery of the core, and a compensating plate made of a magnetic material disposed at the bottom of the bottomed cylindrical frame. , a magnetic plate fitted into the opening side of the bottomed cylindrical frame; a valve body attached to the opening side of the bottomed cylindrical frame of the core so as to be movable in the axial direction; and the valve body. a valve seat that is disposed in a position facing the core and cooperates with the valve body to open and close a fluid flow path; and a spring that presses the valve body against the valve seat. A movable core made of a magnetic material on the side and a flexible permanent magnet on the lower side of the valve seat are combined, the valve seat is made of a flexible permanent magnet, and the opposing surfaces of the permanent magnets of the valve body and the valve seat are opposite to each other. A proportional control solenoid valve characterized in that it is configured with magnetic poles in the direction of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2157383U JPS59127978U (en) | 1983-02-18 | 1983-02-18 | proportional control solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2157383U JPS59127978U (en) | 1983-02-18 | 1983-02-18 | proportional control solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59127978U JPS59127978U (en) | 1984-08-28 |
| JPH0221668Y2 true JPH0221668Y2 (en) | 1990-06-11 |
Family
ID=30152700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2157383U Granted JPS59127978U (en) | 1983-02-18 | 1983-02-18 | proportional control solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59127978U (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633269Y2 (en) * | 1988-04-22 | 1994-08-31 | リンナイ株式会社 | Gas proportional valve |
| JP2692771B2 (en) * | 1992-10-26 | 1997-12-17 | シーケーディ株式会社 | Flow control valve |
| US10035103B2 (en) | 2008-10-30 | 2018-07-31 | Fresenius Medical Care Holdings, Inc. | Modular, portable dialysis system |
| US8240636B2 (en) * | 2009-01-12 | 2012-08-14 | Fresenius Medical Care Holdings, Inc. | Valve system |
| US8597505B2 (en) | 2007-09-13 | 2013-12-03 | Fresenius Medical Care Holdings, Inc. | Portable dialysis machine |
| US9199022B2 (en) | 2008-09-12 | 2015-12-01 | Fresenius Medical Care Holdings, Inc. | Modular reservoir assembly for a hemodialysis and hemofiltration system |
| US9308307B2 (en) | 2007-09-13 | 2016-04-12 | Fresenius Medical Care Holdings, Inc. | Manifold diaphragms |
| US8105487B2 (en) | 2007-09-25 | 2012-01-31 | Fresenius Medical Care Holdings, Inc. | Manifolds for use in conducting dialysis |
| US9358331B2 (en) | 2007-09-13 | 2016-06-07 | Fresenius Medical Care Holdings, Inc. | Portable dialysis machine with improved reservoir heating system |
| EP3511034B1 (en) | 2007-11-29 | 2023-03-29 | Fresenius Medical Care Holdings, Inc. | Extracorporeal blood processing system for conducting hemodialysis and hemofiltration |
| US9201036B2 (en) | 2012-12-21 | 2015-12-01 | Fresenius Medical Care Holdings, Inc. | Method and system of monitoring electrolyte levels and composition using capacitance or induction |
| US9157786B2 (en) | 2012-12-24 | 2015-10-13 | Fresenius Medical Care Holdings, Inc. | Load suspension and weighing system for a dialysis machine reservoir |
| US9354640B2 (en) | 2013-11-11 | 2016-05-31 | Fresenius Medical Care Holdings, Inc. | Smart actuator for valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53534B2 (en) * | 1973-03-16 | 1978-01-10 |
-
1983
- 1983-02-18 JP JP2157383U patent/JPS59127978U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59127978U (en) | 1984-08-28 |
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