JPS6314367B2 - - Google Patents
Info
- Publication number
- JPS6314367B2 JPS6314367B2 JP1615681A JP1615681A JPS6314367B2 JP S6314367 B2 JPS6314367 B2 JP S6314367B2 JP 1615681 A JP1615681 A JP 1615681A JP 1615681 A JP1615681 A JP 1615681A JP S6314367 B2 JPS6314367 B2 JP S6314367B2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- pressure
- valve
- diaphragm
- proportional control
- 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
- 239000012530 fluid Substances 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Control Of Fluid Pressure (AREA)
Description
【発明の詳細な説明】
本発明は可動コイル型電気的駆動部を有し、ガ
バナの出口圧力を電流の増減によつて比例的に制
御する圧力比例制御弁に関し、特にコイルの動き
を円滑にする実用的な構造に関し、制御特性の優
れた圧力比例制御弁を実現することを目的とす
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressure proportional control valve that has a moving coil type electric drive unit and proportionally controls the outlet pressure of a governor by increasing or decreasing current, and particularly relates to a pressure proportional control valve that has a moving coil type electric drive unit and proportionally controls the outlet pressure of a governor by increasing or decreasing current. The purpose of this study is to realize a pressure proportional control valve with a practical structure and excellent control characteristics.
第１図に従来例を示す。弁ボデイ１には流体入
口２、弁座３、流体出口４が設けられ、さらに弁
座３に対向する弁５にその中央部を締結したダイ
ヤフラム６を設け、さらに絶縁体７を介して端子
８を設ける。そして導通孔９により大気圧に保た
れる背圧室イ、流体の供給圧が加わる一次圧室
ロ、弁５により制御された圧力となる二次圧室ハ
を形成する。弁ボデイ１の上部にはトツプヨーク
１０、永久磁石１１、ボトムヨーク１２、センタ
ーヨーク１３からなる磁気回路が形成され、セン
ターヨーク１３とトツプヨーク１０との間に設け
られた空隙１４にはコイル１５を巻いたボビン１
６を位置させ、コイル１５の両端はリード線１７
により端子８に導通している。またボビン１６の
下端部は弁５の上端部に当接し、コイル１５に通
電することにより生ずる電磁力を弁体５に伝え
る。 FIG. 1 shows a conventional example. The valve body 1 is provided with a fluid inlet 2, a valve seat 3, and a fluid outlet 4. Furthermore, a diaphragm 6 is provided at the center of the valve 5 facing the valve seat 3, and a terminal 8 is connected via an insulator 7. will be established. A back pressure chamber (a) maintained at atmospheric pressure by the through hole 9, a primary pressure chamber (b) to which fluid supply pressure is applied, and a secondary pressure chamber (c) whose pressure is controlled by the valve 5 are formed. A magnetic circuit consisting of a top yoke 10, a permanent magnet 11, a bottom yoke 12, and a center yoke 13 is formed in the upper part of the valve body 1, and a coil 15 is wound in a gap 14 provided between the center yoke 13 and the top yoke 10. bobbin 1
6, and both ends of the coil 15 are connected to the lead wire 17.
It is electrically connected to the terminal 8. Further, the lower end of the bobbin 16 comes into contact with the upper end of the valve 5, and transmits the electromagnetic force generated by energizing the coil 15 to the valve body 5.
ここで電磁力をＦ、二次圧室の流体圧力（以下
二次圧力という）をP2、弁とダイヤフラムの有
効受圧面積を等しいとしてＡとすると、周知のガ
バナの原理により、P2＝Ｆ／Ａの関係があり電
磁力Ｆを変えればP2が変わる。そして電磁力Ｆ
は空隙１０の磁束密度Ｂ、コイル１５の巻線の長
さｌ、コイル１５に流す電流をｉとすると、Ｆ＝
Bliの関係があり結局コイル１５に流す電流ｉに
よつて二次圧力P2を制御することが出来る。 Here, if we assume that the electromagnetic force is F, the fluid pressure in the secondary pressure chamber (hereinafter referred to as secondary pressure) is P 2 , and the effective pressure-receiving areas of the valve and diaphragm are equal to A, then according to the well-known governor principle, P 2 = F There is a relationship of /A, and if you change the electromagnetic force F, P 2 will change. and electromagnetic force F
is the magnetic flux density of the air gap 10, B is the winding length of the coil 15, and the current flowing through the coil 15 is i, then F=
There is a relationship Bli, and after all, the secondary pressure P 2 can be controlled by the current i flowing through the coil 15.
この従来例には二つの問題点がある。第１の問
題点はボビン１６がセンターヨーク１３の外周に
より案内されて動く構造である為に、リード線１
７の少しの張力でボビン１６の内面とセンターヨ
ーク１３との間の摩擦力が異常に増大し、安定し
た精度の高い制御特性が得られないことである。
すなわち、電流ｉの変化が少い間は二次圧力P2
が変化しないいわゆる不感帯を生じたり、電流を
増加するときと減少するときで同一電流ｉに対す
る二次圧力P2の差すなわちヒステリシスが大き
くなることである。 This conventional example has two problems. The first problem is that the bobbin 16 is guided by the outer periphery of the center yoke 13 and moves, so the lead wire 1
7, the frictional force between the inner surface of the bobbin 16 and the center yoke 13 increases abnormally, making it impossible to obtain stable and highly accurate control characteristics.
In other words, while the change in current i is small, the secondary pressure P 2
A so-called dead zone occurs in which the current does not change, or the difference in the secondary pressure P 2 for the same current i when increasing and decreasing the current, that is, the hysteresis becomes large.
第２の問題点は弁５はダイヤフラム６のみで支
持し、ボビン１６と当接させただけで、固着しな
い構成であり、流体圧力や流体の渦流および弁５
の質量などに起因して、弁５が振動を起こすこと
である。 The second problem is that the valve 5 is supported only by the diaphragm 6 and is in contact with the bobbin 16, but does not stick to the bobbin 16.
The problem is that the valve 5 vibrates due to the mass of the valve.
本発明は上記従来例の問題点を解消するもので
ある。 The present invention solves the problems of the above-mentioned conventional example.
本発明の一実施例を第２図および第３図により
説明する。なお従来例と同一部品には同一番号、
記号を用いて詳細な説明を省略する。 An embodiment of the present invention will be described with reference to FIGS. 2 and 3. In addition, parts that are the same as the conventional example have the same numbers,
Detailed explanation will be omitted using symbols.
第２図においてダイヤフラム１８の外周は弁ボ
デイ１に固定され、内周はボビン１６′に固着し
てある。もう一枚のダイヤフラム６の中央部に
は、ダイヤフラム当板１９を介してボビン１６′
の下端面を当接させ、さらに弁５の軸部２０を貫
通させて、弁５ダイヤフラム６、ダイヤフラム当
板１９、ボビン１６′を一体に固着締結してある。
またボビン１６′には背圧室イに面する部分に１
ないし２個程度の直径0.5ミリメートルないし1.5
ミリメートルの小孔を貫通してある。 In FIG. 2, the outer circumference of the diaphragm 18 is fixed to the valve body 1, and the inner circumference is fixed to the bobbin 16'. A bobbin 16' is connected to the center of the other diaphragm 6 via a diaphragm contact plate 19.
The valve 5 diaphragm 6, diaphragm abutment plate 19, and bobbin 16' are fixedly fastened together with the lower end surfaces of the valve 5 in contact with each other, and the shaft portion 20 of the valve 5 passing through the valve 5.
In addition, the bobbin 16' has a section facing the back pressure chamber A.
or 2 pieces with a diameter of 0.5mm to 1.5mm
A small millimeter hole is passed through it.
上記の複数のダイヤフラム６と１８は軸心に対
してスラスト方向には動き易く、かつ同時に径方
向つまりラジアル方向には、ある程度の剛性を有
し、ボビン１６′を空隙１４の略中央に支持する。 The plurality of diaphragms 6 and 18 are movable in the thrust direction with respect to the axis, and at the same time have a certain degree of rigidity in the radial direction, and support the bobbin 16' approximately at the center of the gap 14. .
したがつて本発明によれば、従来例の問題点と
したリード線１７の張力による異常な摩擦を生ず
ることもなく、第３図のごとく極めて安定した電
流ｉと二次圧P2の関係を得ることができる。な
おダイヤフラム６とダイヤフラム１８の間隔を大
きくしたり、ボビン支持用のダイヤフラムをさら
にもう一枚追加することによつて、上記の効果を
より安定させることも可能である。 Therefore, according to the present invention, there is no abnormal friction caused by the tension of the lead wire 17, which was a problem in the conventional example, and an extremely stable relationship between the current i and the secondary pressure P2 as shown in FIG. 3 can be maintained. Obtainable. Note that the above effect can be made more stable by increasing the distance between the diaphragm 6 and the diaphragm 18 or by adding one more diaphragm for supporting the bobbin.
またダイヤフラム６に弁５とボビン１６′を共
に固着締結したことにより、弁５が流体の圧力な
どによつて振動を生じそうになつた際、複数のダ
イヤフラム６，１８の適度なたわみ抵抗によつ
て、弁５の振動を抑制防止できるようになつた。 In addition, since the valve 5 and the bobbin 16' are fixedly fastened together to the diaphragm 6, when the valve 5 is about to vibrate due to fluid pressure, etc., the plurality of diaphragms 6 and 18 provide appropriate deflection resistance. As a result, vibration of the valve 5 can be suppressed and prevented.
またボビン１６′の小孔２１は弁５が振動しそ
うになつた時、ボビン内側室ニと背圧室イを流通
する空気の適当な流通抵抗として作用し、振動を
抑制防止する。したがつてこの小孔２１は大きす
ぎると効果が減少してしまうし、また小さすぎる
と圧力比例制御弁の応答性を悪くしてしまう。し
たがつて適度な孔径になるよう配慮すべきであ
る。 Further, when the valve 5 is about to vibrate, the small hole 21 of the bobbin 16' acts as an appropriate flow resistance for air flowing between the bobbin inner chamber 2 and the back pressure chamber 2, thereby suppressing and preventing the vibration. Therefore, if the small hole 21 is too large, the effect will be reduced, and if it is too small, the responsiveness of the pressure proportional control valve will be deteriorated. Therefore, care should be taken to ensure that the pore size is appropriate.
また小孔２１はボビン１６′以外にダイヤフラ
ム１８に形成しても同様に振動の防止抑制効果が
得られる。なお動作原理は従来例と全く同じであ
るので説明を省略する。 Further, even if the small holes 21 are formed in the diaphragm 18 instead of the bobbin 16', the same effect of preventing and suppressing vibrations can be obtained. Note that the operating principle is exactly the same as the conventional example, so the explanation will be omitted.
第４図に本発明の他の実施例を示す。第４図は
本発明の一実施例第２図のガバナ部の一部構造が
異るものであり、第４図において図を省略した部
分および同一番号、記号を付したものは第２図と
同一である。 FIG. 4 shows another embodiment of the invention. FIG. 4 shows an embodiment of the present invention in which the structure of the governor section in FIG. 2 is partially different, and the parts omitted in FIG. 4 and the same numbers and symbols as those in FIG. are the same.
第４図において２２は二次圧室ハの下流側に設
けた絞りであり、流体は絞り２２を経て出口４へ
流出する。絞り２２の下流側には背圧導通孔２３
を設け背圧室イと導通する。第４図の構成におい
て流体圧が作用した釣合状態の力関係を背圧室イ
の圧力すなわち出口４の圧力をP3とし、前述の
記号を用いて整理すると、P2−P3＝Ｆ／Ａとな
る。すなわち第１図および第２図の構造では、
P2＝Ｆ／Ａとなるのに比べ小さい電磁力Ｆで大
きな出口圧力を制御することが出来る効果があ
る。さらに第１図および第２図の構造では、背圧
室イが大気導通孔９により大気に開放されている
為にもしダイヤフラム６が損傷した場合流体が大
気中に漏洩することになり、流体の種類によつて
は危険であるが本発明第４図の構造では背圧室イ
は大気と密閉されている為安全性が高いという効
果がある。 In FIG. 4, 22 is a throttle provided on the downstream side of the secondary pressure chamber C, and the fluid flows out through the throttle 22 to the outlet 4. A back pressure communication hole 23 is provided on the downstream side of the throttle 22.
A is provided and communicated with the back pressure chamber A. In the configuration shown in Fig. 4, the force relationship in a state of balance when fluid pressure is applied is expressed as P 2 -P 3 =F, with the pressure in the back pressure chamber A, that is, the pressure at the outlet 4, being P3 , and using the symbols described above. /A. In other words, in the structure of Figures 1 and 2,
Since P 2 =F/A, it is possible to control a large outlet pressure with a small electromagnetic force F. Furthermore, in the structures shown in FIGS. 1 and 2, the back pressure chamber A is open to the atmosphere through the atmosphere communication hole 9, so if the diaphragm 6 is damaged, the fluid will leak into the atmosphere. Although it may be dangerous depending on the type, the structure shown in FIG. 4 of the present invention has the advantage of high safety because the back pressure chamber A is sealed from the atmosphere.
第１図は従来例の圧力比例制御弁の断面図、第
２図は本発明の一実施例における圧力比例制御弁
の断面図、第３図は同電流ｉと二次圧力P2の関
係図、第４図は同他の実施例の断面図である。
４……出口、５……弁、１０……トツプヨー
ク、１１……永久磁石、１２……ボトムヨーク、
１３……センターヨーク、１４……空隙、１５…
…コイル、１６……ボビン、１８……ダイヤフラ
ム、２１……小孔、２２……絞り、イ……背圧
室、ハ……二次圧室。
Fig. 1 is a sectional view of a conventional pressure proportional control valve, Fig. 2 is a sectional view of a pressure proportional control valve according to an embodiment of the present invention, and Fig. 3 is a diagram of the relationship between the current i and the secondary pressure P2 . , FIG. 4 is a sectional view of another embodiment. 4...Outlet, 5...Valve, 10...Top yoke, 11...Permanent magnet, 12...Bottom yoke,
13...Center yoke, 14...Gap, 15...
...Coil, 16...Bobbin, 18...Diaphragm, 21...Small hole, 22...Aperture, A...Back pressure chamber, C...Secondary pressure chamber.
Claims (1)
空隙中に、コイルを巻いたボビンを設け、前記コ
イルに電流を流すことにより発生する電磁力を、
ガバナ部を構成する弁に作用させ、前記電流を変
えることにより前記ガバナ部の出口圧力を変える
構成とし、前記ボビンを複数のダイヤフラムによ
り支持するとともに、前記複数のダイヤフラムの
うち、少くとも一枚を弁およびボビンに固着した
圧力比例制御弁。 ２ ダイヤフラムおよびボビンのうち、少くとも
いずれか一方に小孔を形成したことを特徴とする
特許請求の範囲第１項記載の圧力比例制御弁。 ３ 二次圧室下流側に絞りを設け、この絞りの下
流側の流体圧力を背圧室へ導いたガバナ部とした
ことを特徴とする特許請求の範囲第１項記載の圧
力比例制御弁。[Claims] 1. A bobbin wound with a coil is provided in the air gap of a magnet circuit composed of a permanent magnet and a yoke, and the electromagnetic force generated by passing a current through the coil is
The configuration is such that the outlet pressure of the governor section is changed by acting on a valve constituting the governor section and changing the current, the bobbin is supported by a plurality of diaphragms, and at least one of the plurality of diaphragms is Pressure proportional control valve fixed to valve and bobbin. 2. The pressure proportional control valve according to claim 1, wherein a small hole is formed in at least one of the diaphragm and the bobbin. 3. The pressure proportional control valve according to claim 1, characterized in that a throttle is provided on the downstream side of the secondary pressure chamber, and a governor section is used to guide the fluid pressure downstream of the throttle to the back pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56016156A JPS57130115A (en) | 1981-02-04 | 1981-02-04 | Pressure proportional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56016156A JPS57130115A (en) | 1981-02-04 | 1981-02-04 | Pressure proportional control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57130115A JPS57130115A (en) | 1982-08-12 |
| JPS6314367B2 true JPS6314367B2 (en) | 1988-03-30 |
Family
ID=11908635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56016156A Granted JPS57130115A (en) | 1981-02-04 | 1981-02-04 | Pressure proportional control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57130115A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022629A (en) * | 1988-01-04 | 1991-06-11 | Interface, Inc. | Valve construction |
| JP2009008269A (en) * | 1997-08-08 | 2009-01-15 | Denso Corp | Differential pressure control valve, differential pressure control valve inspection method, differential pressure control valve adjustment method, and vehicle brake device |
| US7762521B2 (en) | 2006-05-23 | 2010-07-27 | Southwest Research Institute | Semi-active compressor valve |
| CN103185163A (en) * | 2011-12-30 | 2013-07-03 | 北京谊安医疗系统股份有限公司 | Flow control proportioning valve |
| CN104214355A (en) * | 2013-05-31 | 2014-12-17 | 北京谊安医疗系统股份有限公司 | Proportional valve |
-
1981
- 1981-02-04 JP JP56016156A patent/JPS57130115A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57130115A (en) | 1982-08-12 |
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