JP2020060245A - solenoid valve - Google Patents

solenoid valve Download PDF

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Publication number
JP2020060245A
JP2020060245A JP2018191598A JP2018191598A JP2020060245A JP 2020060245 A JP2020060245 A JP 2020060245A JP 2018191598 A JP2018191598 A JP 2018191598A JP 2018191598 A JP2018191598 A JP 2018191598A JP 2020060245 A JP2020060245 A JP 2020060245A
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Prior art keywords
plunger
valve
suction element
switch device
electromagnetic
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JP2018191598A
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JP6941086B2 (en
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正吾 濱田
Shogo Hamada
正吾 濱田
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Saginomiya Seisakusho Inc
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Saginomiya Seisakusho Inc
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Priority to JP2018191598A priority Critical patent/JP6941086B2/en
Priority to CN201910900822.8A priority patent/CN111022697B/en
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    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/126—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on a rib perpendicular to the fluid line
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0236—Diaphragm cut-off apparatus
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0672—One-way valve the valve member being a diaphragm

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)

Abstract

To provide an electromagnetic actuator and a solenoid valve including an operation detection function, without changing the size and the appearance design.SOLUTION: A plunger 23 is sucked by a suction piece 22 by electric conduction to an electromagnetic coil 26. By non-conduction/conduction of electricity, a valve body part 31 of an end part of a connection part 232 of the plunger 23 is seated/separated with respect to a valve seat 13. A fitting hole 22a and an insertion hole 22c are formed at the center of the suction piece 22. In an outer case 27, a switch device 4 is inserted in the fitting hole 22a and the insertion hole 22c. In a state where the plunger 23 is sucked to the suction piece 22, an operation shaft 42 of the switch device 4 is pressed and operated by a rod part 231 of the plunger 23.SELECTED DRAWING: Figure 1

Description

本発明は、電磁コイルへの通電／非通電によりプランジャを駆動する電磁アクチュエータ及び電磁弁に関する。   The present invention relates to an electromagnetic actuator and a solenoid valve that drive a plunger by energizing / de-energizing an electromagnetic coil.

従来、電磁弁が実際に開閉しているか判断するためには別置の圧力センサや流量センサ等が必要である。しかし、これらの別置の装置は電磁弁以外に設置スペースを必要とするとともに、コストアップの要因になる。また、電磁弁は電磁アクチュエータを備えているが、この電磁アクチュエータの動作を検出するセンサ等の検知手段を備えた電磁弁が、例えば特開２０１７−１８７１６９号公報（特許文献１）及び特開２０１７−１９８２４６号公報（特許文献２）に開示されている。   Conventionally, a separate pressure sensor, flow rate sensor, or the like is required to determine whether the solenoid valve is actually opened or closed. However, these separately installed devices require an installation space in addition to the solenoid valve and cause a cost increase. Further, the electromagnetic valve includes an electromagnetic actuator, and an electromagnetic valve including a detection unit such as a sensor for detecting the operation of the electromagnetic actuator is disclosed in, for example, JP-A-2017-187169 (Patent Document 1) and JP-A-2017. -198246 (patent document 2).

特開２０１７−１８７１６９号公報JP, 2017-187169, A 特開２０１７−１９８２４６号公報JP, 2017-198246, A

前記従来の電磁弁は、電磁アクチュエータの動作を検出するセンサ等の検知手段を備えているが、検知手段を電磁弁本体の外部に外付けにて設けているため、サイズが大きくなるとともに、外観意匠も悪くなるという問題があり、依然、改良の余地がある。   The conventional solenoid valve includes detection means such as a sensor for detecting the operation of the electromagnetic actuator.However, since the detection means is externally provided outside the solenoid valve body, the size is increased and the external appearance is improved. There is a problem that the design is bad, and there is still room for improvement.

本発明は、サイズや外観意匠を変更することなく、作動検知機能を備えた電磁アクチュエータ及び電磁弁を提供することを課題とする。   An object of the present invention is to provide an electromagnetic actuator and an electromagnetic valve having an operation detection function without changing the size or appearance design.

請求項１の電磁アクチュエータは、吸引子と、前記吸引子に対向して配置されたプランジャと、前記吸引子と前記プランジャの周囲を囲う電磁コイルと、前記プランジャを前記吸引子から離間する方向に付勢するプランジャばねと、前記電磁コイルを内包する外函と、を備え、前記電磁コイルへの通電により前記吸引子で前記プランジャを吸引するとともに、前記電磁コイルへの非通電により前記プランジャばねにより前記プランジャを前記吸引子から離間させるよう、該プランジャを駆動する電磁アクチュエータにおいて、前記吸引子の中心に前記プランジャが移動する軸線方向に前記外函側から前記プランジャ側まで貫通する貫通孔が形成されるとともに、作動部への押動／非押動によりスイッチ状態を変えるスイッチ装置を備え、前記プランジャが前記吸引子に吸引された状態で前記スイッチ装置の前記作動部が該プランジャにより押動されるよう、前記外函内にて前記吸引子の前記貫通孔内に前記スイッチ装置が内挿されていることを特徴とする。   The electromagnetic actuator according to claim 1, wherein a suction element, a plunger arranged to face the suction element, an electromagnetic coil surrounding the suction element and the plunger, and a direction in which the plunger is separated from the suction element. A plunger spring for urging and an outer box enclosing the electromagnetic coil are provided, and the plunger is attracted by the suction element by energizing the electromagnetic coil, and the plunger spring is deenergized by de-energizing the electromagnetic coil. In an electromagnetic actuator that drives the plunger so as to separate the plunger from the suction element, a through hole that penetrates from the outer casing side to the plunger side is formed in the center of the suction element in the axial direction in which the plunger moves. And a switch device for changing the switch state by pushing / non-pushing to the operating part, The switch device is inserted in the through hole of the suction element in the outer box so that the actuating portion of the switch device is pushed by the plunger while the runner is attracted to the suction element. It is characterized by

請求項２の電磁アクチュエータは、請求項１に記載の電磁アクチュエータであって、前記吸引子の前記貫通孔は、前記スイッチ装置の本体ケースを嵌合する嵌合孔と、前記プランジャ側で前記作動部を挿通する挿通孔とで構成され、前記スイッチ装置の本体ケースの前記軸線方向の両端部が、前記嵌合孔の前記挿通孔側の底部と前記外函とに挟持されていることを特徴とする。   The electromagnetic actuator according to claim 2 is the electromagnetic actuator according to claim 1, wherein the through hole of the suction element is a fitting hole into which a body case of the switch device is fitted, and the actuation is performed on the plunger side. And an axial direction of the switch device main body case, and both ends of the main body case of the switch device in the axial direction are sandwiched between the insertion hole side bottom of the fitting hole and the outer case. And

請求項３の電磁アクチュエータは、請求項１または２に記載の電磁アクチュエータであって、前記スイッチ装置の前記作動部と前記プランジャとの接触部の何れか一方の当接面が球面であることを特徴とする。   The electromagnetic actuator according to claim 3 is the electromagnetic actuator according to claim 1 or 2, wherein the contact surface of any one of the contact portion between the actuating portion of the switch device and the plunger is spherical. Characterize.

請求項４の電磁弁は、弁部材を収容する弁室と、前記弁室に連通して流体が導入される一次側ポートと、前記弁室に連通して流体が流出される二次側ポートとが形成された弁ハウジングと、請求項１乃至３のいずれか一項に記載の電磁アクチュエータと、を備えた電磁弁であって、前記弁室内の前記弁部材が前記電磁アクチュエータの前記プランジャに連結され、該電磁アクチュエータの駆動により、前記弁部材が前記一次側ポートと前記二次側ポートとの間を開閉するよう構成されていることを特徴とする。   The solenoid valve according to claim 4, wherein a valve chamber accommodating a valve member, a primary side port communicating with the valve chamber for introducing fluid, and a secondary port communicating with the valve chamber for discharging fluid. An electromagnetic valve comprising: a valve housing in which is formed; and an electromagnetic actuator according to any one of claims 1 to 3, wherein the valve member in the valve chamber is the plunger of the electromagnetic actuator. It is characterized in that the valve member is connected and is opened and closed between the primary side port and the secondary side port by driving the electromagnetic actuator.

請求項５の電磁弁は、請求項４に記載の電磁弁であって、前記弁ハウジングの前記弁室と前記電磁アクチュエータの間を封止するダイヤフラムを備えたことを特徴とする。   A solenoid valve according to a fifth aspect of the present invention is the solenoid valve according to the fourth aspect, further comprising a diaphragm that seals between the valve chamber of the valve housing and the electromagnetic actuator.

請求項６の電磁弁は、請求項５に記載の電磁弁であって、前記ダイヤフラムが前記プランジャの連結軸の端部に取り付けられるとともに、該ダイヤフラムが前記弁部材を構成していることを特徴とする。   The solenoid valve according to claim 6 is the solenoid valve according to claim 5, wherein the diaphragm is attached to an end of a connecting shaft of the plunger, and the diaphragm constitutes the valve member. And

請求項１乃至３の電磁アクチュエータ、または請求項４乃至６の電磁弁によれば、スイッチ装置によりプランジャの作動状態を検知できるとともに、スイッチ倒置が、電磁コイルを内包する外函の内側に設けられているので、サイズや外観意匠が変更されることがない。   According to the electromagnetic actuator of claims 1 to 3, or the electromagnetic valve of claims 4 to 6, the operating state of the plunger can be detected by the switch device, and the switch inversion is provided inside the outer box containing the electromagnetic coil. Therefore, the size and appearance design are not changed.

本発明の実施形態における電磁弁の非通電時の縦断面図である。It is a longitudinal cross-sectional view of the embodiment of the present invention when the solenoid valve is not energized. 同実施形態における電磁弁の通電時の縦断面図である。It is a longitudinal cross-sectional view at the time of energizing the solenoid valve in the same embodiment. 図１のＡ−Ａ矢視図である。It is an AA arrow line view of FIG. 図１のＢ−Ｂ矢視図である。It is a BB arrow line view of FIG.

次に、本発明の電磁アクチュエータ及び電磁弁の実施形態について図面を参照して説明する。図１は実施形態の電磁弁の非通電時（弁閉状態）の縦断面図、図２は同電磁弁の通電時（弁開状態）の縦断面図、図３は同電磁弁の電磁アクチュエータの上面を示す図１のＡ−Ａ矢視図、図４は同電磁弁の弁ハウジングを示す図１のＢ−Ｂ矢視図である。なお、以下の説明における「上下」の概念は図１及び図２の図面における上下に対応する。この実施形態の電磁弁は、弁ハウジング１と、「電磁アクチュエータ」としての電磁駆動部２と、「弁部材」としてのダイヤフラム３と、スイッチ装置４とを備えている。   Next, embodiments of the electromagnetic actuator and the electromagnetic valve of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view of the solenoid valve of the embodiment when not energized (valve closed state), FIG. 2 is a vertical cross-sectional view of the solenoid valve when energized (valve open state), and FIG. 3 is an electromagnetic actuator of the solenoid valve. 1 is a view showing an upper surface of FIG. 1 taken along the line AA of FIG. 1, and FIG. 4 is a view taken along the line BB of FIG. The concept of “upper and lower” in the following description corresponds to the upper and lower sides in the drawings of FIGS. 1 and 2. The electromagnetic valve of this embodiment includes a valve housing 1, an electromagnetic drive unit 2 as an “electromagnetic actuator”, a diaphragm 3 as a “valve member”, and a switch device 4.

弁ハウジング１には、電磁駆動部２側の上端面に薄型円環状の段部１ａが形成され、この段部１ａの中央から下部に向けて軸線Ｘを中心線とする弁室１０が形成されている。なお、この軸線Ｘは後述のプランジャケース２１の中心線でもあり、プランジャ２３が移動する軸線方向に対応している。また、弁ハウジング１は下部に突出する管部１Ａと、側部に突出する管部１Ｂとを有しており、管部１Ａを通して弁室１０に連通する一次側ポート１１が形成され、管部１Ｂを通して弁室１０に連通する二次側ポート１２が形成されている。また、弁ハウジング１の弁室１０内には、一次側ポート１１の外周を成す円筒状の弁座１３が形成されている。   In the valve housing 1, a thin annular step portion 1a is formed on an upper end surface on the electromagnetic drive portion 2 side, and a valve chamber 10 having an axis X as a center line is formed from the center of the step portion 1a toward the lower portion. ing. The axis X is also the center line of the plunger case 21 described later, and corresponds to the axial direction in which the plunger 23 moves. Further, the valve housing 1 has a pipe portion 1A projecting downward and a pipe portion 1B projecting laterally, and a primary side port 11 communicating with the valve chamber 10 through the pipe portion 1A is formed. A secondary port 12 that communicates with the valve chamber 10 through 1B is formed. Further, in the valve chamber 10 of the valve housing 1, a cylindrical valve seat 13 forming the outer periphery of the primary side port 11 is formed.

電磁駆動部２は、非磁性体からなるプランジャケース２１と、プランジャケース２１の上端に固定された磁性体からなる吸引子２２と、プランジャケース２１内で吸引子２２に対向して配置されたプランジャ２３と、吸引子２２とプランジャ２３との間に配設されたプランジャばね２４とを備えている。また、プランジャケース２１の下端内側に固着された固定用スリーブ２５と、プランジャケース２１の外周に配置されボビン２６ａに巻線が巻回された電磁コイル２６と、電磁コイル２６とボビン２６ａを内包する外函２７と、外函２７の下部からプランジャ２３までの磁路を確保する継鉄２８とを備えている。そして、電磁コイル２６は吸引子２２とプランジャ２３との周囲を囲っている。プランジャケース２１は、筒状に形成されて内部にプランジャ室２０（図１）を画定している。また、プランジャケース２１は、その側面の一部によって吸引子２２を覆うように吸引子２２に溶接等により固定されている。   The electromagnetic drive unit 2 includes a plunger case 21 made of a non-magnetic material, a suction element 22 made of a magnetic material fixed to an upper end of the plunger case 21, and a plunger arranged in the plunger case 21 so as to face the suction element 22. 23 and a plunger spring 24 arranged between the suction element 22 and the plunger 23. In addition, the fixing sleeve 25 fixed to the inner side of the lower end of the plunger case 21, the electromagnetic coil 26 arranged around the outer periphery of the plunger case 21 and having a winding wound around the bobbin 26a, and the electromagnetic coil 26 and the bobbin 26a are included. An outer casing 27 and a yoke 28 that secures a magnetic path from the lower portion of the outer casing 27 to the plunger 23 are provided. The electromagnetic coil 26 surrounds the suction element 22 and the plunger 23. The plunger case 21 is formed in a tubular shape and defines the plunger chamber 20 (FIG. 1) inside. The plunger case 21 is fixed to the suction element 22 by welding or the like so as to cover the suction element 22 with a part of its side surface.

吸引子２２には、その中心に軸線Ｘを中心軸とする円筒形状の嵌合孔２２ａと、略円筒形状のばね収容孔２２ｂとが形成されている。また、嵌合孔２２ａとばね収容孔２２ｂとの間には、この嵌合孔２２ａからばね収容孔２２ｂまで連通する挿通孔２２ｃが形成されている。この嵌合孔２２ａと挿通孔２２ｃとは、プランジャ２３が移動する軸線Ｘ方向に外函２７の天板２７１からばね収容孔２２ｂ側（プランジャ２３側）まで貫通するように形成され、この挿通孔２２ｃの径は嵌合孔２２ａより径が小さくなっている。そして、嵌合孔２２ａと挿通孔２２ｃとは、後述のようにスイッチ装置４が内挿される「貫通孔」を構成している。   At the center of the suction element 22, a cylindrical fitting hole 22a having the axis X as the central axis and a substantially cylindrical spring accommodating hole 22b are formed. Further, an insertion hole 22c is formed between the fitting hole 22a and the spring housing hole 22b so as to communicate from the fitting hole 22a to the spring housing hole 22b. The fitting hole 22a and the insertion hole 22c are formed so as to penetrate from the top plate 271 of the outer case 27 to the spring accommodating hole 22b side (plunger 23 side) in the axis X direction in which the plunger 23 moves. The diameter of 22c is smaller than that of the fitting hole 22a. The fitting hole 22a and the insertion hole 22c form a "through hole" into which the switch device 4 is inserted, as described later.

プランジャ２３は、吸引子２２に吸引されるように適宜な磁性体によって構成され、プランジャ室２０内に収容されている。また、プランジャ２３はその外周面がプランジャケース２１の内周面に摺接するように、軸線Ｘ方向に移動可能に設けられている。また、プランジャ２３の吸引子２２側の端部には、吸引子２２のばね収容孔２２ｂ内に挿通されるロッド部２３１が形成されている。さらに、プランジャ２３の弁ハウジング１側には、ダイヤフラム３を保持する連結部２３２が形成されている。   The plunger 23 is made of an appropriate magnetic material so as to be sucked by the suction element 22, and is housed in the plunger chamber 20. Further, the plunger 23 is movably provided in the direction of the axis X so that the outer peripheral surface thereof is in sliding contact with the inner peripheral surface of the plunger case 21. Further, a rod portion 231 that is inserted into the spring accommodating hole 22b of the suction element 22 is formed at the end portion of the plunger 23 on the suction element 22 side. Further, a connecting portion 232 for holding the diaphragm 3 is formed on the valve housing 1 side of the plunger 23.

ダイヤフラム３は、ゴム製で自然状態で略円盤状の形状をしており、中央にプランジャ２３の連結部２３２の下端に嵌合する弁体部３１を有するとともに、外周にビード部３２を有している。そして、ダイヤフラム３は連結部２３２に装着された状態で、ビード部４２を弁ハウジング１の電磁駆動部２側の段部１ａ内に収容され、このビード部４２が電磁駆動部２の外函２７と弁ハウジング１とにより挟み付けられるようにして、ダイヤフラム３が弁ハウジング１に固定されている。これにより、弁ハウジング１の弁室１０と電磁駆動部２の間が封止されている。   The diaphragm 3 is made of rubber and has a substantially disk-like shape in a natural state. The diaphragm 3 has a valve body portion 31 fitted to the lower end of the connecting portion 232 of the plunger 23 in the center and a bead portion 32 on the outer periphery. ing. The diaphragm 3 is attached to the connecting portion 232, and the bead portion 42 is housed in the step portion 1 a of the valve housing 1 on the electromagnetic drive portion 2 side, and the bead portion 42 is attached to the outer casing 27 of the electromagnetic drive portion 2. The diaphragm 3 is fixed to the valve housing 1 so as to be sandwiched between the valve housing 1 and the valve housing 1. Thereby, the space between the valve chamber 10 of the valve housing 1 and the electromagnetic drive unit 2 is sealed.

スイッチ装置４は、吸引子２２の嵌合孔２２ａに整合する形状をした円柱形状の本体ケース４１と、本体ケース４１から一部が突出した「作動部」としての作動軸４２と、本体ケース４１の状態を信号として取り出すためのリード線４３とを備えている。本体ケース４１の高さは吸引子２２の嵌合孔２２ａの深さと同寸になっている。外函２７の天板２７１の中央にはリード線孔２７ａが形成されている。   The switch device 4 includes a cylindrical main body case 41 having a shape matching the fitting hole 22 a of the suction element 22, an operating shaft 42 as an “operating portion” partially protruding from the main body case 41, and a main body case 41. And a lead wire 43 for taking out the above state as a signal. The height of the main body case 41 is the same as the depth of the fitting hole 22 a of the suction element 22. A lead wire hole 27 a is formed in the center of the top plate 271 of the outer box 27.

そして、スイッチ装置４は、作動軸４２を挿通孔２２ｃ内に挿通した状態で、嵌合孔２２ａ内に本体ケース４１が嵌合され、リード線孔２７ａからリード線４３が引き出され、このスイッチ装置４は吸引子２２内に取り付けられている。この状態で、スイッチ装置４の本体ケース４１の下端部と上端部（両端部）とは、それぞれ嵌合孔２２ａの挿通孔２２ｃ側の底部と、外函２７のリード線孔２７ａの内側外周部とに当接されている。これにより、本体ケース４１は嵌合孔２２ａの挿通孔２２ｃ側の底部と外函２７とに挟持され、スイッチ装置４は吸引子２２及び外函２７に対して固定されている。   Then, in the switch device 4, the main body case 41 is fitted in the fitting hole 22a, and the lead wire 43 is pulled out from the lead wire hole 27a with the actuation shaft 42 being inserted in the insertion hole 22c. 4 is attached in the suction element 22. In this state, the lower end and the upper end (both ends) of the main body case 41 of the switch device 4 are respectively the bottom of the fitting hole 22a on the side of the insertion hole 22c and the inner peripheral portion of the lead wire hole 27a of the outer case 27. Abutted against. As a result, the body case 41 is sandwiched between the bottom of the fitting hole 22a on the side of the insertion hole 22c and the outer case 27, and the switch device 4 is fixed to the suction element 22 and the outer case 27.

以上の構成により、図１に示す非通電時、すなわち電磁コイル２６に通電がなされていないときは、プランジャばね２４のばね力及びプランジャ２３の自重により、プランジャ２３が下方に付勢されて、ダイヤフラム３の弁体部３１が弁座１３に着座する。これにより、一次側ポート１１が閉じられて弁閉状態となる。なお、この実施形態では、流体の圧力により、弁閉状態のとき、一次側ポート１１が高圧で弁室１０（二次側ポート１２）が低圧となるが、高圧を受ける受圧面積は一次側ポート１１の内径に相当する小さな面積であり、ダイヤフラム３の弁体部３１を弁座１３から離間させる力が小さいため、弁漏れの虞がない。   With the above configuration, when the electromagnetic coil 26 is not energized as shown in FIG. 1, that is, when the electromagnetic coil 26 is not energized, the plunger 23 is urged downward by the spring force of the plunger spring 24 and the own weight of the plunger 23, and the diaphragm. The valve body 31 of No. 3 sits on the valve seat 13. As a result, the primary side port 11 is closed and the valve is closed. In this embodiment, due to the pressure of the fluid, when the valve is closed, the primary port 11 is at high pressure and the valve chamber 10 (secondary port 12) is at low pressure, but the pressure receiving area that receives high pressure is the primary port. Since it has a small area corresponding to the inner diameter of 11, and the force for separating the valve body portion 31 of the diaphragm 3 from the valve seat 13 is small, there is no risk of valve leakage.

一方、通電時、すなわち電磁コイル２６に通電がなされると、図２に示すように、吸引子２２とプランジャ２３との間に吸引力が発生してプランジャ２３が上昇し、ダイヤフラム３の弁体部３１が弁座１３から離間して、一次側ポート１１を開とし、弁開状態となる。   On the other hand, when the electromagnetic coil 26 is energized, that is, when the electromagnetic coil 26 is energized, as shown in FIG. 2, a suction force is generated between the suction element 22 and the plunger 23, and the plunger 23 rises to cause the valve element of the diaphragm 3 to rise. The part 31 separates from the valve seat 13 to open the primary side port 11 and open the valve.

また、スイッチ装置４において、本体ケース４１内には図示しない接点回路等を備えており、非通電時には、図１に示すように作動軸４２が本体ケース４１から突出した自然状態（非押動）となり、本体ケース４１内の接点回路が例えば開成される。一方、通電時には、図２に示すように作動軸４２がプランジャ２３のロッド部２３１により押動され、作動軸４２が本体ケース４１内に押し込まれる押動状態となり、接点回路が例えば閉成される。そして、この接点回路の状態はリード線４３を介して外部の回路に取り出される。これにより、弁閉状態であるか弁開状態であるかを確実に検出することができる。   Further, the switch device 4 is provided with a contact circuit (not shown) in the main body case 41, and when not energized, the operating shaft 42 projects from the main body case 41 as shown in FIG. 1 in a natural state (non-push). Then, the contact circuit in the main body case 41 is opened, for example. On the other hand, when energized, as shown in FIG. 2, the operating shaft 42 is pushed by the rod portion 231 of the plunger 23, the operating shaft 42 is pushed into the main body case 41, and the contact circuit is closed, for example. . Then, the state of this contact circuit is taken out to an external circuit through the lead wire 43. This makes it possible to reliably detect whether the valve is closed or open.

以上の実施形態では、プランジャ２３のロッド部２３１の端面が平坦面となり、スイッチ装置４の作動軸４２の端部がドーム状の半球面となっている。したがって、このロッド部２３１と作動軸４２の当接部が点接触となり押動操作が確実となる。ロッド部２３１側が半球面で、作動軸４２側が平坦面でもよい。また、スイッチ装置４は「作動部」としての作動軸４２が本体ケース４１から突出するように構成されているが、作動部は本体ケース内にあってもよく、この場合にプランジャ側のロッド部を本体ケース内に挿通可能となるようにして作動部を押動するようにしてもよい。   In the above embodiment, the end surface of the rod portion 231 of the plunger 23 is a flat surface, and the end portion of the operating shaft 42 of the switch device 4 is a dome-shaped hemispherical surface. Therefore, the contact portion between the rod portion 231 and the actuating shaft 42 comes into point contact, and the pushing operation becomes reliable. The rod portion 231 side may be a hemispherical surface and the operating shaft 42 side may be a flat surface. Further, the switch device 4 is configured such that the actuating shaft 42 as the “actuating portion” projects from the body case 41, but the actuating portion may be inside the body case. The actuating portion may be pushed so that it can be inserted into the body case.

スイッチ装置４を吸引子２２内の貫通孔に収納し、外函２７の天板２７１で挟持した電磁アクチュエータとすることで、検知手段を電磁弁の外部に外付けにて電磁弁の外観意匠を変更する必要がなく、作動検知機能を備えた電磁弁とすることができる。   The switch device 4 is housed in the through hole in the suction element 22 and is an electromagnetic actuator sandwiched by the top plate 271 of the outer box 27, so that the external appearance of the solenoid valve can be designed by externally attaching the detection means to the outside of the solenoid valve. It is possible to use an electromagnetic valve that does not need to be changed and has an operation detection function.

また、実施形態の電磁弁はダイヤフラム３によって弁室１０と電磁駆動部２との間が封止されているので、弁ハウジング３側を流れる流体の影響がスイッチ装置４に及ぶことがなく、流体による腐食等が防止でき、スイッチ装置４を確実に作動させることができる。   Further, in the solenoid valve according to the embodiment, the diaphragm 3 seals the space between the valve chamber 10 and the electromagnetic drive unit 2. Therefore, the switching device 4 is not affected by the fluid flowing through the valve housing 3 side. It is possible to prevent corrosion and the like, and to reliably operate the switch device 4.

以上、本発明の実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。   As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and changes in design within the scope not departing from the gist of the present invention, etc. Even so, it is included in the present invention.

１ 弁ハウジング
１０ 弁室
１１ 一次側ポート
１２ 二次側ポート
１３ 弁座
２ 電磁駆動部（電磁アクチュエータ）
２０ プランジャ室
２１ プランジャケース
２２ 吸引子
２２ａ 嵌合孔（貫通孔）
２２ｂ ばね収容孔
２２ｃ 挿通孔（貫通孔）
２３ プランジャ
２３１ ロッド部
２３２ 連結部
２４ プランジャばね
２５ 固定用スリーブ
２６ 電磁コイル
２７ 外函
２７１ 天板
２７ａ リード線孔
２８ 継鉄
３ ダイヤフラム（弁部材）
３１ 弁体部
３２ ビード部
４ スイッチ装置
４１ 本体ケース
４２ 作動軸（作動部）
４３ リード線
Ｘ 軸線 1 Valve Housing 10 Valve Chamber 11 Primary Port 12 Secondary Port 13 Valve Seat 2 Electromagnetic Drive (Electromagnetic Actuator)
20 Plunger chamber 21 Plunger case 22 Suction element 22a Fitting hole (through hole)
22b Spring accommodation hole 22c Insertion hole (through hole)
23 Plunger 231 Rod part 232 Connection part 24 Plunger spring 25 Fixing sleeve 26 Electromagnetic coil 27 Outer box 271 Top plate 27a Lead wire hole 28 Yoke 3 Diaphragm (valve member)
31 valve body part 32 bead part 4 switch device 41 body case 42 actuating shaft (actuating part)
43 Lead wire X axis

Claims (6)

吸引子と、前記吸引子に対向して配置されたプランジャと、前記吸引子と前記プランジャの周囲を囲う電磁コイルと、前記プランジャを前記吸引子から離間する方向に付勢するプランジャばねと、前記電磁コイルを内包する外函と、を備え、前記電磁コイルへの通電により前記吸引子で前記プランジャを吸引するとともに、前記電磁コイルへの非通電により前記プランジャばねにより前記プランジャを前記吸引子から離間させるよう、該プランジャを駆動する電磁アクチュエータにおいて、
前記吸引子の中心に前記プランジャが移動する軸線方向に前記外函側から前記プランジャ側まで貫通する貫通孔が形成されるとともに、作動部への押動／非押動によりスイッチ状態を変えるスイッチ装置を備え、
前記プランジャが前記吸引子に吸引された状態で前記スイッチ装置の前記作動部が該プランジャにより押動されるよう、前記外函内にて前記吸引子の前記貫通孔内に前記スイッチ装置が内挿されていることを特徴とする電磁アクチュエータ。 A suction element, a plunger arranged to face the suction element, an electromagnetic coil surrounding the suction element and the plunger, a plunger spring for urging the plunger in a direction away from the suction element, An outer box containing an electromagnetic coil, and the suction coil sucks the plunger by energizing the electromagnetic coil, and the plunger spring separates the plunger from the suction coil by de-energizing the electromagnetic coil. In the electromagnetic actuator that drives the plunger,
A switch device is formed in the center of the suction element, the through hole penetrating from the outer casing side to the plunger side in the axial direction of the plunger movement, and changing the switch state by pushing / non-pushing the operating portion. Equipped with
The switch device is inserted in the through hole of the suction element inside the outer box so that the operating portion of the switch device is pushed by the plunger while the plunger is attracted to the suction element. Electromagnetic actuator characterized in that 前記吸引子の前記貫通孔は、前記スイッチ装置の本体ケースを嵌合する嵌合孔と、前記プランジャ側で前記作動部を挿通する挿通孔とで構成され、前記スイッチ装置の本体ケースの前記軸線方向の両端部が、前記嵌合孔の前記挿通孔側の底部と前記外函とに挟持されていることを特徴とする請求項１に記載の電磁アクチュエータ。   The through hole of the suction element includes a fitting hole for fitting the main body case of the switch device and an insertion hole for inserting the actuating portion on the plunger side, and the axis line of the main body case of the switch device. The electromagnetic actuator according to claim 1, wherein both ends in the direction are sandwiched between the bottom of the fitting hole on the side of the insertion hole and the outer box. 前記スイッチ装置の前記作動部と前記プランジャとの接触部の何れか一方の当接面が球面であることを特徴とする請求項１または２に記載の電磁アクチュエータ。   The electromagnetic actuator according to claim 1 or 2, wherein a contact surface of either one of the contact portion between the operating portion and the plunger of the switch device is a spherical surface. 弁部材を収容する弁室と、前記弁室に連通して流体が導入される一次側ポートと、前記弁室に連通して流体が流出される二次側ポートとが形成された弁ハウジングと、請求項１乃至３のいずれか一項に記載の電磁アクチュエータと、を備えた電磁弁であって、
前記弁室内の前記弁部材が前記電磁アクチュエータの前記プランジャに連結され、該電磁アクチュエータの駆動により、前記弁部材が前記一次側ポートと前記二次側ポートとの間を開閉するよう構成されていることを特徴とする電磁弁。 A valve housing having a valve chamber accommodating a valve member, a primary port communicating with the valve chamber for introducing a fluid, and a secondary port communicating with the valve chamber for discharging a fluid. A solenoid valve comprising: the electromagnetic actuator according to any one of claims 1 to 3;
The valve member in the valve chamber is connected to the plunger of the electromagnetic actuator, and the valve member is configured to open and close between the primary port and the secondary port by driving the electromagnetic actuator. This is a solenoid valve. 前記弁ハウジングの前記弁室と前記電磁アクチュエータの間を封止するダイヤフラムを備えたことを特徴とする請求項４に記載の電磁弁。   The electromagnetic valve according to claim 4, further comprising a diaphragm that seals between the valve chamber of the valve housing and the electromagnetic actuator. 前記ダイヤフラムが前記プランジャの連結軸の端部に取り付けられるとともに、該ダイヤフラムが前記弁部材を構成していることを特徴とする請求項５に記載の電磁弁。   The solenoid valve according to claim 5, wherein the diaphragm is attached to an end portion of a connecting shaft of the plunger, and the diaphragm constitutes the valve member.
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IT202000016633A1 (en) * 2020-07-09 2022-01-09 Omb Saleri S P A Soc Benefit ANODE VALVE FOR A FUEL CELL AUTOMOTIVE SYSTEM

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JP3777265B2 (en) * 1999-01-07 2006-05-24 シーケーディ株式会社 solenoid valve
JP4456799B2 (en) * 2001-11-01 2010-04-28 株式会社不二工機 solenoid valve
CN101225888B (en) * 2008-02-04 2010-09-29 重庆大学 Bistable impulse electromagnetic valve and drive circuit thereof
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CN204153282U (en) * 2014-10-15 2015-02-11 株式会社鹭宫制作所 Solenoid valve

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IT202000016633A1 (en) * 2020-07-09 2022-01-09 Omb Saleri S P A Soc Benefit ANODE VALVE FOR A FUEL CELL AUTOMOTIVE SYSTEM
WO2022009084A1 (en) * 2020-07-09 2022-01-13 Omb Saleri S.P.A. Anode valve for a fuel cell system for automotive

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