EP0212458A1 - Magnet valve - Google Patents

Magnet valve Download PDF

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Publication number
EP0212458A1
EP0212458A1 EP86110890A EP86110890A EP0212458A1 EP 0212458 A1 EP0212458 A1 EP 0212458A1 EP 86110890 A EP86110890 A EP 86110890A EP 86110890 A EP86110890 A EP 86110890A EP 0212458 A1 EP0212458 A1 EP 0212458A1
Authority
EP
European Patent Office
Prior art keywords
plastic
housing
solenoid valve
electromagnet
slide
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.)
Withdrawn
Application number
EP86110890A
Other languages
German (de)
French (fr)
Inventor
Ekkehard Gaidzik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parker Hannifin Manufacturing Germany GmbH and Co KG
Original Assignee
Parker Hannifin Manufacturing Germany GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Parker Hannifin Manufacturing Germany GmbH and Co KG filed Critical Parker Hannifin Manufacturing Germany GmbH and Co KG
Publication of EP0212458A1 publication Critical patent/EP0212458A1/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets

Definitions

  • the invention relates to a solenoid valve with a plastic housing, in which an electromagnet and a slide actuated by the electromagnet are arranged, an electrical connection rail protruding laterally from the plastic housing transversely to the direction of movement of the slide.
  • Solenoid valves of the aforementioned type are used in a very versatile manner in practice, for example on agricultural machines, construction machines, excavators and the like. That is, wherever it is a matter of moving any machine parts by means of hydraulic controls. Such machines often have a very rough operating environment.
  • the electrical connection rail protrudes freely from the housing of the solenoid valve and is covered by an electrical connector. In view of the rough operation, this electrical connection is very unsafe in practical use.
  • the connecting rail can be bent even with relatively low external forces. The plug can loosen or even slip off. Furthermore, water, mud, dirt or the like can penetrate into the electrical connection and lead to corrosion, but at least endanger the contact reliability. It has accordingly been shown in practice that the known solenoid valves are quite prone to failure.
  • the invention has for its object to provide a solenoid valve which enables a safe, interference-insensitive electrical connection with a plug and a connecting cable and which withstands all mechanical stresses occurring in practice with little construction effort.
  • a plastic web is integrally formed with the plastic housing on both sides of the connecting rail and at a distance therefrom and that the two plastic webs have mutually facing guide surfaces for a flat plug.
  • Fig. 1 shows a front view of a solenoid valve
  • Fig. 2 shows a side view thereof.
  • the solenoid valve according to the invention has a plastic housing 1, in which there is a known electromagnet, not shown, and a slide 2 actuated by the electromagnet.
  • the electromagnet actuates the slide 2 in the axial direction of the screw attachment 3 shown, so that the bores 4, 5 through which hydraulic fluid flows can be acted upon selectively by means of connections not shown.
  • the plastic housing has a lateral right angular approach 6. Laterally from the plastic housing 1 and the approach 6, an electrical connection rail 7 protrudes transversely to the direction of movement of the slide 2. This electrical connecting rail is connected inside the housing to one coil end of the electromagnet. The other end of the coil is grounded.
  • a plastic web 8 or 9 are integrally formed with the plastic housing 1 at a distance from the connecting bar.
  • the two plastic webs 8 and 9 have mutually facing, that is to say internal, guide surfaces 10 and 11, which ensure reliable guidance and retention of a flat plug, not shown, which has been pushed on.
  • the ends of the two plastic webs lie approximately in the same plane with the front end of the connecting rail 7.
  • the guide surface 10 of the one plastic web 8 is flat and the guide surface 11 of the other plastic web 9 is partially cylindrical, as shown in FIG. 1.
  • the plastic webs 8, 9 are connected to one another in a region on the housing side, that is to say close to the shoulder 6, by a reinforcing rib 12.
  • This reinforcing rib 12 surrounds the connecting rail 7 in a corresponding part on the housing side and is widened on both sides according to FIG. 1 in this area 13 or 14.
  • the reinforcing rib 12 is provided in the area between the connecting bar 7 on the one hand and the plastic webs 9 on the other hand, which has the partially cylindrical guide surface 11, with a guide hole 15 which extends approximately to the level of the end face of the extension 6.
  • the design according to the invention can be applied analogously not only to the exemplary embodiment of the solenoid valve shown, but also to other solenoid valves.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

There are magnetic valves with a plastic housing in which are arranged an electromagnet and a slide which is operated by the electromagnet, an electrical terminal rail protruding from the side from the plastic housing, transversely to the direction of movement of the slide. In order to facilitate a reliable electrical connection, which is insensitive to interference, to a plug and to a connecting cable in the case of such magnetic valves, and in order to take into account all the mechanical stresses occurring in practice, with a low construction cost, it is proposed that a plastic web (8, 9) be integrally formed as one piece with the plastic housing (1) on each of the two sides of the terminal rail (7) and at a distance therefrom, and that the two plastic webs (8, 9) have mutually facing guide surfaces (10, 11) for a flat connector. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Magnetventil mit einem Kunststoffgehäuse, in welchem ein Elektromag­net und ein durch den Elektromagneten betätigter Schieber angeordnet sind, wobei seitlich aus dem Kunststoffgehäuse quer zur Bewegungsrichtung des Schiebers eine elektrische Anschlußschiene heraus­ragt.The invention relates to a solenoid valve with a plastic housing, in which an electromagnet and a slide actuated by the electromagnet are arranged, an electrical connection rail protruding laterally from the plastic housing transversely to the direction of movement of the slide.

Magnetventile der vorbezeichneten Art werden in der Praxis sehr vielseitig angewendet, beispielsweise an landwirtschaftlichen Maschinen, Baumaschinen, Baggern und dgl. , d.h. überall dort, wo es darum geht, durch hydraulische Steuerungen irgendwelche Maschinenteile zu bewegen. Bei derartigen Maschinen herrscht viel­fach ein sehr rauher Betriebseinsatz. Bei den be­kannten Magnetventilen ragt die elektrische Anschluß­schiene frei aus dem Gehäuse des Magnetventiles heraus und wird von einem elektrischen Stecker über­deckt. Diese elektrische Verbindung ist in Anbetracht des rauhen Betriebes im praktischen Einsatz sehr un­sicher. Die Anschlußschiene kann schon bei verhältnis­mäßig geringen von außen einwirkenden Kräften verbo­gen werden. Der Stecker kann sich lockern oder sogar abrutschen. Ferner kann Wasser, Schlamm, Schmutz oder dgl. in die elektrische Verbindung eindringen und zu einer Korrosion führen, zumindest aber die Kontakt­sicherheit gefährden. Es hat sich demgemäß in der Praxis gezeigt, daß die bekannten Magnetventile recht störungsanfällig sind.Solenoid valves of the aforementioned type are used in a very versatile manner in practice, for example on agricultural machines, construction machines, excavators and the like. That is, wherever it is a matter of moving any machine parts by means of hydraulic controls. Such machines often have a very rough operating environment. In the known solenoid valves, the electrical connection rail protrudes freely from the housing of the solenoid valve and is covered by an electrical connector. In view of the rough operation, this electrical connection is very unsafe in practical use. The connecting rail can be bent even with relatively low external forces. The plug can loosen or even slip off. Furthermore, water, mud, dirt or the like can penetrate into the electrical connection and lead to corrosion, but at least endanger the contact reliability. It has accordingly been shown in practice that the known solenoid valves are quite prone to failure.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, ein Magnetventil zu schaffen, welches bei geringem Bauaufwand eine sichere störungsunempfindliche elek­trische Verbindung mit einem Stecker und einem An­schlußkabel ermöglicht und welches allen in der Praxis vorkommenden mechanischen Beanspruchungen standhält.In contrast, the invention has for its object to provide a solenoid valve which enables a safe, interference-insensitive electrical connection with a plug and a connecting cable and which withstands all mechanical stresses occurring in practice with little construction effort.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß zu beiden Seiten der Anschlußschiene und mit Abstand von dieser je ein Kunststoffsteg einstückig mit dem Kunststoffgehäuse angeformt ist und daß die beiden Kunststoffstege einander zugekehrte Führungsflächen für einen Flachstecker aufweisen.The object is achieved in that a plastic web is integrally formed with the plastic housing on both sides of the connecting rail and at a distance therefrom and that the two plastic webs have mutually facing guide surfaces for a flat plug.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous embodiments of the invention result from the subclaims.

In der Zeichnung ist ein Ausführungsbeispiel der Er­findung im Schema dargestellt, und zwar zeigen Fig. 1 eine Frontalansicht auf ein Magnetventil und Fig. 2 eine Seitenansicht hierzu.In the drawing, an embodiment of the invention is shown in the diagram, namely, Fig. 1 shows a front view of a solenoid valve and Fig. 2 shows a side view thereof.

Das erfindungsgemäße Magnetventil nach dem in der Zeich­nung dargestellten Ausführungsbeispiel weist ein Kunst­stoffgehäuse 1 auf, in welchem sich in bekannter Weise ein nicht gezeichneter Elektromagnet und ein durch den Elektromagneten betätigter Schieber 2 befinden. Der Elektromagnet betätigt den Schieber 2 in Axialrichtung des dargestellten Schraubansatzes 3, so daß die von einer hydraulischen Flüssigkeit durchströmten Bohrungen 4, 5 mittels nicht gezeichneter Anschlüsse wahlweise be­aufschlagt werden können. Wie Fig. 2 deutlich zeigt, be­sitzt das Kunststoffgehäuse einen seitlichen etwa recht­ eckigen Ansatz 6. Seitlich aus dem Kunststoffgehäuse 1 und dem Ansatz 6 ragt eine elektrische Anschlußschiene 7 quer zur Bewegungsrichtung des Schiebers 2 heraus. Diese elektrische Anschlußschiene ist im Innern des Ge­häuses mit dem einen Spulenende des Elektromagneten verbunden. Das andere Ende der Spule liegt an Masse.The solenoid valve according to the invention according to the embodiment shown in the drawing has a plastic housing 1, in which there is a known electromagnet, not shown, and a slide 2 actuated by the electromagnet. The electromagnet actuates the slide 2 in the axial direction of the screw attachment 3 shown, so that the bores 4, 5 through which hydraulic fluid flows can be acted upon selectively by means of connections not shown. As clearly shown in Fig. 2, the plastic housing has a lateral right angular approach 6. Laterally from the plastic housing 1 and the approach 6, an electrical connection rail 7 protrudes transversely to the direction of movement of the slide 2. This electrical connecting rail is connected inside the housing to one coil end of the electromagnet. The other end of the coil is grounded.

Zu beiden Seiten der Anschlußschiene 7, also gemäß den Zeichnungen oberhalb und unterhalb sind mit Abstand von der Anschlußschiene je ein Kunststoffsteg 8 bzw. 9 ein­stückig mit dem Kunststoffgehäuse 1 angeformt. Die bei­den Kunststoffstege 8 und 9 weisen einander zugekehrte, also innenliegende Führungsflächen 10 und 11 auf, die eine sichere Führung und Halterung eines nicht gezeich­neten aufgeschobenen Flachsteckers gewährleisten. Wie Fig. 2 ferner verdeutlicht, liegen die Stirnenden der beiden Kunststoffstege etwa in gleicher Ebene mit dem Stirnende der Anschlußschiene 7. Um die Führung und Hal­terung für den Flachstecker zu verbessern und eine Ver­drehsicherheit zu gewährleisten, ist die Führungsfläche 10 des einen Kunststoffsteges 8 eben und die Führungs­fläche 11 des anderen Kunststoffsteges 9 teilzylindrisch ausgebildet, wie Fig. 1 verdeutlicht.On both sides of the connecting bar 7, that is to say according to the drawings above and below, a plastic web 8 or 9 are integrally formed with the plastic housing 1 at a distance from the connecting bar. The two plastic webs 8 and 9 have mutually facing, that is to say internal, guide surfaces 10 and 11, which ensure reliable guidance and retention of a flat plug, not shown, which has been pushed on. As further illustrated in FIG. 2, the ends of the two plastic webs lie approximately in the same plane with the front end of the connecting rail 7. In order to improve the guidance and mounting for the flat plug and to ensure security against rotation, the guide surface 10 of the one plastic web 8 is flat and the guide surface 11 of the other plastic web 9 is partially cylindrical, as shown in FIG. 1.

Um eine weitere Stabilisierung der Anschlußschiene 7 und der beiden Kunststoffstege 8 und 9 zu erzielen, sind die Kunststoffstege 8, 9 in einem gehäuseseitigen Bereich, also nahe dem Ansatz 6, durch eine Verstärkungs­rippe 12 miteinander verbunden. Diese Verstärkungsrippe 12 umgibt in einem entsprechenden gehäuseseitigen Teil die Anschlußschiene 7 und ist gemäß Fig. 1 in diesem Bereich 13 bzw. 14 zu beiden Seiten verbreitert. Um die Halterung des Flachsteckers weiterhin zu verbessern, kann man diesen stirnseitig mit einem Zapfen versehen. Zu diesem Zweck ist die Verstärkungsrippe 12 im Bereich zwischen der Anschlußschiene 7 einerseits und dem Kunst­stoffstege 9 andererseits, der die teilzylindrische Führungsfläche 11 aufweist, mit einem Führungsloch 15 versehen, welches etwa bis zur Ebene der Stirnfläche des Ansatzes 6 reicht.In order to achieve further stabilization of the connecting rail 7 and the two plastic webs 8 and 9, the plastic webs 8, 9 are connected to one another in a region on the housing side, that is to say close to the shoulder 6, by a reinforcing rib 12. This reinforcing rib 12 surrounds the connecting rail 7 in a corresponding part on the housing side and is widened on both sides according to FIG. 1 in this area 13 or 14. To further improve the mounting of the tab connector, can be provided with a pin on the front. For this purpose, the reinforcing rib 12 is provided in the area between the connecting bar 7 on the one hand and the plastic webs 9 on the other hand, which has the partially cylindrical guide surface 11, with a guide hole 15 which extends approximately to the level of the end face of the extension 6.

Die erfindungsgemäße Gestaltungsweise kann nicht nur bei dem dargestellten Ausführungsbeispiel des Magnetventiles, sondern auch bei anderen Magnetventilen sinngemäß ange­wendet werden.The design according to the invention can be applied analogously not only to the exemplary embodiment of the solenoid valve shown, but also to other solenoid valves.

Claims (5)

1. Magnetventil mit einem Kunststoffgehäuse (1), in welchem ein Elektromagnet und ein durch den Elek­tromagneten betätigter Schieber (2) angeordnet sind, wobei seitlich aus dem Kunststoffgehäuse (1) quer zur Bewegungsrichtung des Schiebers (2) eine elektrische Anschlußschiene (7) herausragt,
dadurch gekennzeichnet,
daß zu beiden Seiten der Anschlußschiene (7) und mit Abstand von dieser je ein Kunststoffsteg (8,9) einstückig mit dem Kunststoffgehäuse (1) angeformt ist und daß die beiden Kunststoffstege (8, 9) einander zugekehrte Führungsflächen (10, 11) für einen Flachstecker aufweisen.1. Solenoid valve with a plastic housing (1), in which an electromagnet and a slide actuated by the electromagnet (2) are arranged, with an electrical connection rail (7) protruding laterally from the plastic housing (1) transversely to the direction of movement of the slide (2) ,
characterized,
that on both sides of the connecting rail (7) and at a distance from each one plastic web (8,9) is integrally formed with the plastic housing (1) and that the two plastic webs (8, 9) facing guide surfaces (10, 11) for have a flat connector. 2. Magnetventil nach Anspruch 1,
dadurch gekennzeichnet,
daß die Stirnenden der beiden Kunststoffstege (8,9) etwa in gleicher Ebene mit dem Stirnende der An­schlußschiene (7) liegen.2. Solenoid valve according to claim 1,
characterized,
that the front ends of the two plastic webs (8,9) lie approximately in the same plane with the front end of the connecting rail (7). 3. Magnetventil nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Führungsfläche (10) des einen Kunststoffste­ges (8) eben und die Führungsfläche (11) des anderen Kunststoffsteges (9) teilzylindrisch ausgebildet sind.3. Solenoid valve according to claim 1 or 2,
characterized,
that the guide surface (10) of one plastic web (8) is flat and the guide surface (11) of the other plastic web (9) is partially cylindrical. 4. Magnetventil nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Kunststoffstege (8, 9) in einem gehäuseseiti­gen Bereich durch eine Verstärkungsrippe (12) mitein­ander verbunden sind, und daß die Verstärkungsrippe (12) einen gehäuseseitigen Teil der Anschlußschie­ne (7) umgibt und in diesem Bereich (13, 14) ver­breitert ist.4. Solenoid valve according to one of claims 1 to 3,
characterized,
that the plastic webs (8, 9) are connected to one another in a housing-side region by a reinforcing rib (12), and that the reinforcing rib (12) surrounds a housing-side part of the connecting rail (7) and is widened in this area (13, 14). 5. Magnetventil nach Anspruch 4,
dadurch gekennzeichnet,
daß die Verstärkungsrippe (12) im Bereich zwischen der Anschlußschiene (7) und dem Kunststoffsteg (9). der die teilzylindrische Führungsfläche (11) auf­weist, mit einem Führungsloch (15) versehen ist.5. Solenoid valve according to claim 4,
characterized,
that the reinforcing rib (12) in the area between the connecting rail (7) and the plastic web (9). which has the partially cylindrical guide surface (11), is provided with a guide hole (15).
EP86110890A 1985-08-10 1986-08-06 Magnet valve Withdrawn EP0212458A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8523151U 1985-08-10
DE19858523151 DE8523151U1 (en) 1985-08-10 1985-08-10 magnetic valve

Publications (1)

Publication Number Publication Date
EP0212458A1 true EP0212458A1 (en) 1987-03-04

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ID=6784130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110890A Withdrawn EP0212458A1 (en) 1985-08-10 1986-08-06 Magnet valve

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EP (1) EP0212458A1 (en)
DE (1) DE8523151U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530935A1 (en) * 1995-08-23 1997-02-27 Rexroth Mannesmann Gmbh Electric actuating magnet with path retainer and electronic energising
DE19745411A1 (en) * 1997-10-15 1999-04-22 Schaeffler Waelzlager Ohg Directional hydraulic valve for controlling internal combustion engine timing
CN107842532A (en) * 2017-12-07 2018-03-27 浙江亿太诺气动科技有限公司 A kind of energy-saving valve island of dustproof and waterproof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265352A (en) * 1963-09-25 1966-08-09 Westinghouse Air Brake Co Valve assembly with liquid-seal electrical plug connection
DE1929470A1 (en) * 1968-07-31 1970-02-05 Molex Products Company Ges N D Electrical plug connection with fastening device
US3930705A (en) * 1974-03-08 1976-01-06 Bunker Ramo Corporation Electrical connector assembly
US3951500A (en) * 1974-06-10 1976-04-20 Bunker Ramo Corporation Circular rack and panel connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265352A (en) * 1963-09-25 1966-08-09 Westinghouse Air Brake Co Valve assembly with liquid-seal electrical plug connection
DE1929470A1 (en) * 1968-07-31 1970-02-05 Molex Products Company Ges N D Electrical plug connection with fastening device
US3930705A (en) * 1974-03-08 1976-01-06 Bunker Ramo Corporation Electrical connector assembly
US3951500A (en) * 1974-06-10 1976-04-20 Bunker Ramo Corporation Circular rack and panel connector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530935A1 (en) * 1995-08-23 1997-02-27 Rexroth Mannesmann Gmbh Electric actuating magnet with path retainer and electronic energising
DE19530935C2 (en) * 1995-08-23 1999-06-17 Mannesmann Rexroth Ag Electrical control unit
DE19745411A1 (en) * 1997-10-15 1999-04-22 Schaeffler Waelzlager Ohg Directional hydraulic valve for controlling internal combustion engine timing
CN107842532A (en) * 2017-12-07 2018-03-27 浙江亿太诺气动科技有限公司 A kind of energy-saving valve island of dustproof and waterproof

Also Published As

Publication number Publication date
DE8523151U1 (en) 1986-02-06

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