JPS6321068B2 - - Google Patents
Info
- Publication number
- JPS6321068B2 JPS6321068B2 JP12970480A JP12970480A JPS6321068B2 JP S6321068 B2 JPS6321068 B2 JP S6321068B2 JP 12970480 A JP12970480 A JP 12970480A JP 12970480 A JP12970480 A JP 12970480A JP S6321068 B2 JPS6321068 B2 JP S6321068B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- force
- detection element
- drive unit
- electric drive
- 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
- 238000001514 detection method Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】
本発明はガス燃焼機器のバーナへ供給するガス
圧力を精度よく制御する比例制御弁に関し、特に
本発明の目的は、実質的に制御したガス圧力を検
出する力の検出素子を設け、目標とするガス圧力
に精度良く制御することが出来る比例弁を提供す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a proportional control valve that accurately controls gas pressure supplied to a burner of a gas combustion device, and in particular, an object of the present invention is to detect a force for detecting a substantially controlled gas pressure. The purpose of the present invention is to provide a proportional valve that is equipped with an element and can control gas pressure accurately to a target gas pressure.
従来例を第１図に示す。第１図において１はガ
スの入口、２は出口、３は弁座、４は弁で弁座３
との間に間隙５を形成し、ダイヤフラム６に固着
貫通し、プランジヤ７にピン８を介して締結され
ている。プランジヤ７の上端は板ばね９で支持さ
れコイル１０内を上下に動く。１１は磁気回路を
構成するヨークである。そして１次圧室１３、２
次圧室１２を形成している。 A conventional example is shown in FIG. In Figure 1, 1 is the gas inlet, 2 is the outlet, 3 is the valve seat, and 4 is the valve.
A gap 5 is formed between the diaphragm 6 and the diaphragm 6, and the plunger 7 is fastened to the plunger 7 via a pin 8. The upper end of the plunger 7 is supported by a leaf spring 9 and moves up and down within the coil 10. 11 is a yoke that constitutes a magnetic circuit. And primary pressure chambers 13, 2
A secondary pressure chamber 12 is formed.
第１図においてコイル１０に通電すると、プラ
ンジヤ７は下向きの電磁力を受け弁４を開く方向
に作用する。そして周知のガバナの原理により弁
４に作用した力に応じて２次圧室１２のガス圧は
調圧される。従つてコイル１０に通電する電流の
大きさにより任意のガス圧が得られる。 In FIG. 1, when the coil 10 is energized, the plunger 7 receives a downward electromagnetic force and acts in the direction of opening the valve 4. The gas pressure in the secondary pressure chamber 12 is regulated in accordance with the force acting on the valve 4 according to the well-known governor principle. Therefore, any gas pressure can be obtained depending on the magnitude of the current applied to the coil 10.
その様子を第２図に示す。第２図において横軸
はコイル１０への通電電流Ｉ、縦軸は２次圧室１
３の圧力P2である。グラフは電流をＯからI2まで
増加し再び電流をＯに戻した場合を示す。 The situation is shown in Figure 2. In Fig. 2, the horizontal axis is the current I flowing to the coil 10, and the vertical axis is the secondary pressure chamber 1.
3 pressure P2 . The graph shows the case where the current is increased from O to I2 and then the current is returned to O.
従来例の問題点は目標とするP2に対して制御
精度が悪いことである。すなわち従来例では第２
図に示したごとく電流増加の場合と減少の場合と
のP2に差を生ずるいわゆるヒステリシスと、磁
気回路を構成する部品のバラツキによる吸引力の
バラツキがある。従つて目標とするP2に対応す
るＩをコイル１０に通電したとしても電流の増加
時と減少時ではヒステリシスに起因するP2の差
が生ずるし、比例弁相互間では磁気回路のバラツ
キにより同一電流で同一P2にはなり得ずP2にバ
ラツキを生ずる。 The problem with the conventional example is that the control accuracy is poor with respect to the target P2 . In other words, in the conventional example, the second
As shown in the figure, there is so-called hysteresis, which causes a difference in P 2 when the current increases and when it decreases, and there are variations in the attractive force due to variations in the components that make up the magnetic circuit. Therefore, even if the coil 10 is energized with I corresponding to the target P 2 , there will be a difference in P 2 due to hysteresis when the current increases and when the current decreases, and the difference in P 2 between proportional valves will be the same due to variations in the magnetic circuit. P 2 cannot be the same depending on the current, and P 2 varies.
従つてより高精度の比例弁が望まれていた。 Therefore, a proportional valve with higher accuracy has been desired.
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３図に示す。第３図にお
いてＡはガスの通路を形成する弁ボデイでガスは
入口１４より流入し１次圧室１５を経て弁座１６
と弁１７の間を通過し２次圧室１８に至り出口１
９より流出する。弁１７の上部にはダイヤフラム
２０と受圧板２１が固着され、ガバナ部を構成す
る。さらに受圧板２１には力の検出素子２２が取
付けられている。２３は力の検出素子２２の端子
である。力の検出素子２２にはばね２４の下端部
を係止し、電気的駆動部Ｂにより、モータ２５が
回転すると、ねじ２６により回転止めされたナツ
ト２７が上下し、ばね２４が伸縮して力の検出素
子２２に作用する力を変化させる構成となつてい
る。力の検出素子２２に作用する力は弁１７にそ
のまま伝えられる。そして周知のガバナの原理、
すなわち弁１７に作用する力をＦとし２次圧室１
８の圧力をP2とし弁１７の有効受圧面積をダイ
ヤフラム２０の有効受圧面積とを等しくしてＡと
すると、P2＝Ｆ／Ａの関係が成りたち弁１７に
作用力に応じて２次圧室１８のガス圧は調圧され
る。従つて力の検出素子２２は２次圧室１８のガ
ス圧を検出していることになる。 An embodiment of the present invention is shown in FIG. In FIG. 3, A is a valve body that forms a gas passage, and gas flows in from the inlet 14, passes through the primary pressure chamber 15, and then goes to the valve seat 16.
and the valve 17 to reach the secondary pressure chamber 18 and the outlet 1
It flows out from 9. A diaphragm 20 and a pressure receiving plate 21 are fixed to the upper part of the valve 17, and constitute a governor section. Furthermore, a force detection element 22 is attached to the pressure receiving plate 21. 23 is a terminal of the force detection element 22. The lower end of the spring 24 is locked to the force detection element 22, and when the motor 25 is rotated by the electric drive unit B, the nut 27, which is stopped from rotating by the screw 26, moves up and down, and the spring 24 expands and contracts to apply the force. The structure is such that the force acting on the detection element 22 is changed. The force acting on the force detection element 22 is directly transmitted to the valve 17. And the well-known principle of governor,
That is, if the force acting on the valve 17 is F, then the secondary pressure chamber 1
If the pressure of 8 is P 2 and the effective pressure receiving area of the valve 17 is equal to the effective pressure receiving area of the diaphragm 20 and is A, then the relationship P 2 = F/A is established, and the valve 17 has a quadratic force depending on the acting force. The gas pressure in the pressure chamber 18 is regulated. Therefore, the force detection element 22 detects the gas pressure in the secondary pressure chamber 18.
つまり本発明ではガス圧力を制御する目的の比
例制御弁において、制御結果を検出する手段を有
する。 That is, in the present invention, a proportional control valve for controlling gas pressure has means for detecting a control result.
本発明によれば目標とするガス圧に対して、制
御結果としてのガス圧を検出し、その偏差をＯに
するようモータを駆動する自動制御系を構成する
ことにより従来例での問題点であつたヒステリシ
スや磁気回路のばらつきによるP2のばらつきを
解消できる。そして極めて高い精度でガス圧を制
御することができる。 According to the present invention, by configuring an automatic control system that detects the gas pressure as a control result with respect to the target gas pressure and drives the motor so that the deviation is O, the problems in the conventional example can be avoided. It is possible to eliminate variations in P 2 due to hot hysteresis and variations in the magnetic circuit. Gas pressure can then be controlled with extremely high precision.
なお本発明の一実施例として第３図の構成に従
つて説明したが、モータを周知の永久磁石の磁界
中に可動コイルを置き、コイルに通電することに
より推力を得るムービングコイル方式や、コイル
中に可動プランジヤを置いてプランジヤの推力を
得る第１図に示したプランジヤ式や、可動永久磁
石と電磁石の同極磁極を対向させて反撥力を利用
する方式等に置換しても本発明の主旨効果は変わ
らない。 Although an embodiment of the present invention has been described according to the configuration shown in FIG. 3, a moving coil method in which a moving coil is placed in the magnetic field of a well-known permanent magnet and the thrust is obtained by energizing the coil, or a coil method may be used. Even if the present invention is replaced with the plunger type shown in Fig. 1 in which a movable plunger is placed inside to obtain the thrust of the plunger, or a type in which the movable permanent magnet and the electromagnet have the same magnetic poles facing each other to utilize the repulsive force, the present invention can still be achieved. The subject effect remains unchanged.
又力の検出素子としては、半導体ひずみゲー
ジ、金属ひずみゲージ、導電体粉末を絶縁弾性体
中に散在させたもの、コンデンサ容量の変化とし
て検出するもの、インダクタンスの変化として検
出するものなど利用可能な多くの素子がある。い
ずれを使用しても本発明の主旨効果は変わらな
い。 In addition, force detection elements that can be used include semiconductor strain gauges, metal strain gauges, conductor powder scattered in an insulating elastic body, devices that detect changes in capacitor capacitance, and devices that detect changes in inductance. There are many elements. No matter which one is used, the main effect of the present invention does not change.
第１図は従来例の比例制御弁の断面図、第２図
は第１図の特性図、第３図は本発明の一実施例の
比例制御弁の断面図である。
１４……入口、１６……弁座、１７……弁、１
９……出口、２１……ダイヤフラム、２２……力
の検出素子、２４……ばね、２５……モータ、２
６……ねじ、２７……ナツト、Ａ……弁ボデイ、
Ｂ……電気的駆動部。
FIG. 1 is a sectional view of a conventional proportional control valve, FIG. 2 is a characteristic diagram of FIG. 1, and FIG. 3 is a sectional view of a proportional control valve according to an embodiment of the present invention. 14...Inlet, 16...Valve seat, 17...Valve, 1
9...Exit, 21...Diaphragm, 22...Force detection element, 24...Spring, 25...Motor, 2
6...screw, 27...nut, A...valve body,
B...Electric drive unit.
Claims (1)
と、前記弁座に対向する弁と、前記弁に中央部を
固着したダイヤフラムとでガバナ部を構成し、前
記弁に作用する力を発生する電気的駆動部と、前
記弁に作用する力の大きさを検出する力の検出素
子を、前記弁と電気的駆動部の間に設けたことを
特徴とする比例制御弁。 ２ モータの回転運動をねじとナツトにより直線
運動に変換し、ばねを伸縮して弁に作用する力を
発生する電気的駆動部としたことを特徴とする特
許請求の範囲第１項記載の比例制御弁。 ３ 力の検出素子を弁又は弁に固着された部材に
取付けたことを特徴とする特許請求の範囲第１項
記載の比例制御弁。[Scope of Claims] 1. A governor section is constituted by a valve body in which a fluid inlet, an outlet, and a valve seat are formed, a valve facing the valve seat, and a diaphragm whose central part is fixed to the valve, A proportional control characterized in that an electric drive unit that generates a force acting on the valve, and a force detection element that detects the magnitude of the force acting on the valve are provided between the valve and the electric drive unit. valve. 2. The proportional control system according to claim 1, characterized in that the rotary motion of the motor is converted into linear motion by a screw and nut, and the electric drive unit generates a force acting on the valve by expanding and contracting a spring. control valve. 3. The proportional control valve according to claim 1, wherein the force detection element is attached to the valve or a member fixed to the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12970480A JPS5754786A (en) | 1980-09-17 | 1980-09-17 | Proportional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12970480A JPS5754786A (en) | 1980-09-17 | 1980-09-17 | Proportional control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5754786A JPS5754786A (en) | 1982-04-01 |
| JPS6321068B2 true JPS6321068B2 (en) | 1988-05-02 |
Family
ID=15016133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12970480A Granted JPS5754786A (en) | 1980-09-17 | 1980-09-17 | Proportional control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5754786A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6370368U (en) * | 1986-10-27 | 1988-05-11 | ||
| JPH01308692A (en) * | 1988-06-07 | 1989-12-13 | Daimatsu Kagaku Kogyo Kk | Postcard and manufacture thereof |
| JPH0518868U (en) * | 1990-12-28 | 1993-03-09 | 株式会社東洋印刷 | Concealment sticker of correspondence in postal communication column |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201972A (en) * | 1985-02-28 | 1986-09-06 | Keihin Seiki Mfg Co Ltd | Motor-driven governor valve |
| JPH0343499Y2 (en) * | 1985-08-30 | 1991-09-11 | ||
| US4678317A (en) * | 1985-11-04 | 1987-07-07 | Savin Corporation | Charge and bias control system for electrophotographic copier |
| JPH01135277U (en) * | 1988-03-10 | 1989-09-14 |
-
1980
- 1980-09-17 JP JP12970480A patent/JPS5754786A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6370368U (en) * | 1986-10-27 | 1988-05-11 | ||
| JPH01308692A (en) * | 1988-06-07 | 1989-12-13 | Daimatsu Kagaku Kogyo Kk | Postcard and manufacture thereof |
| JPH0518868U (en) * | 1990-12-28 | 1993-03-09 | 株式会社東洋印刷 | Concealment sticker of correspondence in postal communication column |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5754786A (en) | 1982-04-01 |
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