EP0110132B1 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
EP0110132B1
EP0110132B1 EP83110708A EP83110708A EP0110132B1 EP 0110132 B1 EP0110132 B1 EP 0110132B1 EP 83110708 A EP83110708 A EP 83110708A EP 83110708 A EP83110708 A EP 83110708A EP 0110132 B1 EP0110132 B1 EP 0110132B1
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EP
European Patent Office
Prior art keywords
relay
adjusting plate
coil body
fastening
coil
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
Application number
EP83110708A
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German (de)
French (fr)
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EP0110132A1 (en
Inventor
Josef Schweiger
Bernhard Dr. Dipl.-Phys. Hering
Helmut Dipl.-Ing. Schedele
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H01H51/2245—Armature inside coil
    • H01H51/2254—Contact forms part of armature

Definitions

  • the invention relates to an electromagnetic relay with a tongue armature arranged within a coil former approximately along its axis, which is supported on one side by its free end and which faces at least one opposing pole plate and is attached to the coil former by a ferromagnetic carrier part, the carrier part being a molded adjustment plate and also in the area between the adjustment plate and the fastening point on the coil former has a predetermined bending point in the form of torsion bars, such that the carrier part and thus the tongue anchor can be adjusted about this predetermined bending point by the action of an external magnetic field on the molded adjusting plate.
  • Such a relay is known from DE-A-2 723 219.
  • This structure has the advantage that the ferromagnetic adjusting plate and with it the tongue anchor attached to the carrier part can still be adjusted by the external magnetic field even when the relay is already closed in the housing and possibly also potted.
  • the basic principle of such a relay with an adjusting plate on the support part for the tongue anchor is also known from DE-A-2 701 230.
  • the adjusting plate is arranged parallel to the anchor within the coil tube, so that its diameter must be designed somewhat larger than would be necessary for the tongue anchor alone. In the case of very small relays, however, efforts are made to make the winding diameter and thus also the coil tube as small as possible to save space.
  • the object of the invention is to develop a relay of the type mentioned in such a way that on the one hand the advantages of magnetic adjustability from the outside are retained, but on the other hand a further reduction in the coil diameter is possible.
  • this object is achieved in that the adjusting plate is arranged approximately at right angles to the coil axis on the end face in front of the one bobbin flange - covering most of the end face of the bobbin - and in that the bobbin flange is also a fastening point for the carrier part.
  • the carrier part with the adjusting plate on the face of the coil body and outside of the coil tube, the space required within the coil body is reduced, so that the winding diameter can also be reduced.
  • the adjusting plate now requires a little more space on the end face in the area of the coil flange, this additional requirement is small compared to the savings in the winding.
  • the tongue anchor is attached to a separately manufactured support part.
  • This support part with the adjusting plate can be made of a material with a particularly low spring bending limit, while the tongue anchor can consist of thinner material with a relatively high spring bending limit with regard to its switching function.
  • the tongue anchor is expediently attached to a web bent out of the adjusting plate and angled in the direction of the coil axis.
  • the torsion bars are each connected to integrally formed fastening tabs which are attached to the end face of the coil flange.
  • These fastening tabs can be fastened, for example, by means of deformed fastening pins of the coil former.
  • the adjusting plate it is expedient for the adjusting plate to be arranged in a recess in the coil former which is adapted to its contour. In order to be able to record as many magnetic field lines as possible during the adjustment, the adjustment plate appropriately takes up a substantial portion of the end face of the coil body. This adjusting plate is advantageously widened in a T-shape at one end.
  • the carrier part can also be formed together with the tongue anchor as a one-piece, angled component.
  • the spring bending limit of the material is selected so that no permanent deformation occurs on the torsion bars with the slight switching movement of the tongue anchor, for example only 0.2 mm, while during the adjustment process the strong force applied to the adjustment plate Magnetic field is covered a relatively larger distance, which leads to permanent deformation on the torsion bars.
  • the adjusting plate is expediently reinforced in thickness by material folding in order to be able to accommodate as many magnetic field lines as possible.
  • the tongue anchor in its fastened end can merge into the adjusting plate formed by angling and on both sides of this end into one of the torsion bars, each of which has a fastening lug.
  • a flow transition flap formed parallel to the adjusting plate and formed by material folding can be formed on each fastening lug.
  • the relay shown in the drawing has a coil former 1 made of insulating material with a winding 2.
  • a spring-elastic tongue armature 3 arranged approximately along the coil axis is fixed at one end 3a in the area of the one coil flange 4 and with its free end 3b in the area of the coil flange 5 between the two counter-pole plates 6 and ' 7 arranged movably.
  • the opposing pole plates 6 and 7 are coupled with their sections 6a and 7a bent into a common plane to a flat, four-pole permanent magnet 8.
  • a support part 9 is used to hold the tongue anchor 3, which is essentially perpendicular to the coil axis on the end face in front of the coil flange 4 and has a notched web 9a which is bent in the direction of the coil axis and on which the fastening end 3a of the tongue anchor is fastened, for example by spot welding .
  • the carrier part 9 also forms an adjusting plate in the form of two adjusting tabs 9b and 9c, which are connected to two fixing tabs 9f and 9g via torsion bars 9d and 9e.
  • the fastening tabs 9f and 9g are attached to the fastening pin 10 of the bobbin flange 4 by means of bores 9h and 9i and fixed by hot deformation of this fastening pin 10.
  • the carrier part 9 consists of a ferromagnetic material with a low spring limit, preferably pure iron.
  • a magnetic field can be applied from the outside in such a way that a torque is exerted on the two adjustment tabs 9b and 9c and the torsion bars 9d and 9e are thereby permanently deformed. With this deformation, the web 9a, which is firmly connected to the adjustment tabs 9b and 9c, and the tongue anchor 3 fastened thereon are adjusted.
  • the magnetic field must be applied in such a way that the field lines strike the adjusting plate or the adjusting tabs 9b and 9c at an angle.
  • the field lines are preferably set to an angle that is greater than 60 ° and less than 90 ° with respect to the adjustment tabs.
  • the adjustment tabs 9b and 9c are arranged in a recess 11 of the bobbin flange 4, so that the adjustment tabs can be pivoted freely in the necessary area.
  • the adjustment tabs 9b and 9c are designed such that they occupy most of the end face of the coil body, with the exception of the area required by the attachment tabs 9f and 9g.
  • the adjustment tab 9b is therefore widened in a T-shape in the present example.
  • the coil body interior 15 can be covered by a film 12 together with the space 11 accommodating the adjustment tabs 9b and 9c, while the other end of the coil body is covered by a film 13 placed on the pole plate sections 6a and 7a.
  • foils 12 and 13 are used for provisional covering, in order to ensure, when the relay is subsequently potted in a ferromagnetic cap 14, that no potting compound penetrates into the interior 15 of the coil former 1.
  • these foils 12 and 13 serve for electrical insulation, since the tongue armature 3 and also the counter-pole plates 6 and 7 simultaneously serve for making electrical contact.
  • the opposing pole plates 6 and 7 are provided with integrally formed connecting pins 6b and 7b, while a connecting pin 9k for the tongue anchor is integrally formed on the carrier part 9.
  • pins 16 for the coil windings are also embedded in the coil body. All pins are arranged in the intended grid dimension or bent into this grid dimension.
  • the ferromagnetic cap 14 serves for the targeted guidance of the permanent magnetic flux as well as the excitation flux, the coupling between the carrier part 9 and the cap 14 being relatively good despite the existing air gap due to the large area of the adjustment tabs 9b and 9c and the mounting tabs 9f and 9g.
  • FIGS. 4 and 5 has a coil body 21 'made of insulating material with a winding 22.
  • a tongue armature 23 which is arranged approximately along the coil axis and is resilient in the switching area of the armature, is fastened with an end 23a in the area of the one coil flange 24 and with its free end 23b movably arranged in the region of the coil flange 25 between the two opposing pole plates 26 and 27.
  • the opposing pole plates 26 and 27 are coupled with their sections 26a and 27a bent into a common plane to a flat, four-pole permanent magnet 28.
  • a tongue part 23 is used to hold the tongue anchor 23 in the form of a support part 29, which is formed with the same material and is in the form of two lateral fastening lugs 29a and 29b and is connected to the tongue anchor 23 via torsion bars 29c and 29d.
  • an adjustment plate 30 is formed by right-angled bending, which is given a double wall thickness by folding the material twice. This adjusting plate 30 is initially guided vertically upwards with its leg 30a from the tongue anchor 23, then bent and arranged vertically downward with the leg 30b, from where the leg 30c in turn in the same plane as the leg 30a again runs above.
  • the adjusting plate 30 can absorb enough magnetic field lines when adjusting with a magnetic field in order to achieve an adjustment of the tongue anchor 23 by permanent deformation on the torsion bars 29c and 29d.
  • the spring bending limit of the tongue anchor or carrier material is chosen so that no permanent deformation occurs in the small switching movement in the range from 0.1 to 0.2 mm, while a plastic deformation occurs in the larger movements generated by the adjusting magnetic field via the adjusting plate is achievable.
  • the fastening lugs 29a and 29b are each non-positively fastened in the grooves of the coil former flange 24 by insertion.
  • the sheet metal of the support part 29 is bent upward at right angles with one leg 29e or 29f, then bent and then guided vertically downward to form flow transition lobes 29g or 29h.
  • These flow transition tabs 29g and 29h are offset somewhat from the adjusting plate 30 towards the outside of the relay, so that the free movement of the adjusting plate 30 is maintained when a sealing film 31 and a housing cap 32 are placed on it.
  • a connecting spike 29i is also integrally formed on the river transition tab 29h.
  • the relay is constructed and sealed as the relay of Fig. 1. The adjustment process is the same as that of the relay there.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)

Description

Die Erfindung bezieht sich auf ein elektromagnetisches Relais mit einem innerhalb eines Spulenkörpers etwa längs dessen Achse angeordneten, einseitig gelagerten Zungenanker, welcher mit seinem freien Ende mindestens einem Gegenpolblech gegenübersteht und mit seinem anderen Ende über einen ferromagnetischen Trägerteil am Spulenkörper befestigt ist, wobei das Trägerteil ein angeformtes Justierblech und ferner im Bereich zwischen dem Justierblech und der Befestigungsstelle am Spulenkörper eine Sollbiegestelle in Form von Torsionsstegen aufweist, derart, daß das Trägerteil und damit der Zungenanker durch Einwirkung eines äußeren Magnetfeldes auf das angeformte Justierblech um diese Sollbiegestelle verstellbar sind.The invention relates to an electromagnetic relay with a tongue armature arranged within a coil former approximately along its axis, which is supported on one side by its free end and which faces at least one opposing pole plate and is attached to the coil former by a ferromagnetic carrier part, the carrier part being a molded adjustment plate and also in the area between the adjustment plate and the fastening point on the coil former has a predetermined bending point in the form of torsion bars, such that the carrier part and thus the tongue anchor can be adjusted about this predetermined bending point by the action of an external magnetic field on the molded adjusting plate.

Ein derartiges Relais ist aus der DE-A-2 723 219 bekannt. Dieser Aufbau hat dabei den Vorteil, daß das ferromagnetische Justierblech und mit ihm der am Trägerteil befestigte Zungenanker durch das von außen angelegte Magnetfeld selbst dann noch justiert werden können, wenn das Relais bereits im Gehäuse abgeschlossen und gegebenenfalls auch vergossen ist. Das Grundprinzip eines derartigen Relais mit einem Justierblech am Trägerteil für den Zungenanker ist außerdem aus der DE-A-2 701 230 bekannt. Bei der bekannten Anordnung ist das Justierblech parallel zum Anker innerhalb des Spulenrohres angeordnet, so daß dessen Durchmesser etwas größer ausgelegt werden muß als dies für den Zungenanker allein notwendig wäre. Bei sehr kleinen Relais ist man jedoch bestrebt, zur Platzersparnis den Wicklungsdurchmesser und damit auch das Spulenrohr möglichst klein zu machen.Such a relay is known from DE-A-2 723 219. This structure has the advantage that the ferromagnetic adjusting plate and with it the tongue anchor attached to the carrier part can still be adjusted by the external magnetic field even when the relay is already closed in the housing and possibly also potted. The basic principle of such a relay with an adjusting plate on the support part for the tongue anchor is also known from DE-A-2 701 230. In the known arrangement, the adjusting plate is arranged parallel to the anchor within the coil tube, so that its diameter must be designed somewhat larger than would be necessary for the tongue anchor alone. In the case of very small relays, however, efforts are made to make the winding diameter and thus also the coil tube as small as possible to save space.

Aufgabe der Erfindung ist es, ein Relais der eingangs genannten Art so weiterzubilden, daß einerseits die Vorteile der magnetischen Justierbarkeit von außen erhalten bleiben, andererseits aber eine weitere Verkleinerung des Spulendurchmessers möglich wird.The object of the invention is to develop a relay of the type mentioned in such a way that on the one hand the advantages of magnetic adjustability from the outside are retained, but on the other hand a further reduction in the coil diameter is possible.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß das Justierblech etwa im rechten Winkel zur Spulenachse stirnseitig vor dem einen Spulenkörperflansch - den größten Teil der Stirnseite des Spulenkörpers überdeckend - angeordnet ist und daß der Spulenkörperflansch auch Befestigungsstelle für das Trägerteil ist.According to the invention, this object is achieved in that the adjusting plate is arranged approximately at right angles to the coil axis on the end face in front of the one bobbin flange - covering most of the end face of the bobbin - and in that the bobbin flange is also a fastening point for the carrier part.

Durch die erfindungsgemäße Anordnung des Trägerteils mit dem Justierblech stirnseitig am Spulenkörper und außerhalb des Spulenrohres verringert sich innerhalb des Spulenkörpers der Platzbedarf, so daß auch der Wicklungsdurchmesser verringert werden kann. Zwar benötigt das Justierblech nunmehr im Bereich des Spulenflansches stirnseitig etwas mehr Platz, doch ist dieser Mehrbedarf im Vergleich zur Einsparung bei der Wicklung gering.Due to the inventive arrangement of the carrier part with the adjusting plate on the face of the coil body and outside of the coil tube, the space required within the coil body is reduced, so that the winding diameter can also be reduced. Although the adjusting plate now requires a little more space on the end face in the area of the coil flange, this additional requirement is small compared to the savings in the winding.

In einer vorteilhaften Ausführungsform der Erfindung ist der Zungenanker an einem getrennt gefertigten Trägerteil befestigt. Dabei kann dieses Trägerteil mit dem Justierblech aus einem Material mit besonders niedriger Federbiegegrenze gefertigt werden, während der Zungenanker im Hinblick auf seine Schaltfunktion aus dünnerem Material mit relativ hoher Federbiegegrenze bestehen kann. In diesem Fall wird der Zungenanker zweckmäßigerweise an einem aus dem Justierblech herausgebogenen und in Richtung auf die Spulenachse abgewinkelten Steg befestigt.In an advantageous embodiment of the invention, the tongue anchor is attached to a separately manufactured support part. This support part with the adjusting plate can be made of a material with a particularly low spring bending limit, while the tongue anchor can consist of thinner material with a relatively high spring bending limit with regard to its switching function. In this case, the tongue anchor is expediently attached to a web bent out of the adjusting plate and angled in the direction of the coil axis.

In einer vorteilhaften Ausgestaltung der Erfindung sind die Torsionsstege jeweils mit angeformten Befestigungslappen verbunden, welche stirnseitig auf dem Spulenflansch aufliegend befestigt sind. Diese Befestigungslappen können beispielsweise mittels verformter Befestigungszapfen des Spulenkörpers befestigt sein. Dabei ist es zweckmäßig, daß das Justierblech in einer seiner Kontur angepaßten Ausnehmung des Spulenkörpers angeordnet ist. Um möglichst viele magnetische Feldlinien bei der Justierung aufnehmen zu können, nimmt das Justierblech zweckmäßigerweise einen wesentlichen Anteil der Stirnfläche des Spulenkörpers ein. In vorteilhafter Weise ist dieses Justierblech dabei an einem Ende T-förmig verbreitert.In an advantageous embodiment of the invention, the torsion bars are each connected to integrally formed fastening tabs which are attached to the end face of the coil flange. These fastening tabs can be fastened, for example, by means of deformed fastening pins of the coil former. It is expedient for the adjusting plate to be arranged in a recess in the coil former which is adapted to its contour. In order to be able to record as many magnetic field lines as possible during the adjustment, the adjustment plate appropriately takes up a substantial portion of the end face of the coil body. This adjusting plate is advantageously widened in a T-shape at one end.

In einer anderen vorteilhaften Ausführungsform der Erfindung kann das Trägerteil auch zusammen mit dem Zungenanker als einstückiges, abgewinkeltes Bauteil ausgebildet sein. In diesem Fall muß darauf geachtet werden, daß die Federbiegegrenze des Materials so gewählt wird, daß an den Torsionsstegen bei der geringen, beispielsweise nur 0,2 mm betragenden Schaltbewegung des Zungenankers keine bleibende Deformation auftritt, während beim Justiervorgang durch das an das Justierblech angelegte starke Magnetfeld ein verhältnismäßig größerer Weg zurückgelegt wird, der zu einer bleibenden Deformation an den Torsionsstegen führt.In another advantageous embodiment of the invention, the carrier part can also be formed together with the tongue anchor as a one-piece, angled component. In this case, care must be taken that the spring bending limit of the material is selected so that no permanent deformation occurs on the torsion bars with the slight switching movement of the tongue anchor, for example only 0.2 mm, while during the adjustment process the strong force applied to the adjustment plate Magnetic field is covered a relatively larger distance, which leads to permanent deformation on the torsion bars.

Bei dieser Ausführungsform ist das Justierblech zweckmäßigerweise durch Materialfaltung in der Dicke verstärkt, um möglichst viele Magnetfeldlinien aufnehmen zu können. Der Zungenanker kann in diesem Fall in seinem befestigten Ende in das durch Abwinkelung gebildete Justierblech und an beiden Seiten dieses Endes in je einen der Torsionsstege übergehen, die je eine Befestigungsnase aufweisen. An jeder Befestigungsnase kann ein zum Justierblech paralleler, durch Materialfaltung gebildeter Flußübergangslappen angeformt sein.In this embodiment, the adjusting plate is expediently reinforced in thickness by material folding in order to be able to accommodate as many magnetic field lines as possible. In this case, the tongue anchor in its fastened end can merge into the adjusting plate formed by angling and on both sides of this end into one of the torsion bars, each of which has a fastening lug. A flow transition flap formed parallel to the adjusting plate and formed by material folding can be formed on each fastening lug.

Die Erfindung wird nachfolgend an Ausführungsbeispielen anhand der Zeichnung näher erläutert. Es zeigt

  • Figuren 1 bis 3 eine erste Ausführungsform eines erfindungsgemäß gestalteten Relais in drei verschiedenen Schnittansichten,
  • Figuren 4 und 5 eine zweite Ausführungsform des erfindungsgemäßen Relais in zwei Schnittansichten,
  • Figur 6 einen Zungenanker mit Träger und Justierblech für das Relais von Fig. 4 in perspektivischer Darstellung.
The invention is explained in more detail below using exemplary embodiments with reference to the drawing. It shows
  • FIGS. 1 to 3 show a first embodiment of a relay designed according to the invention in three different sectional views,
  • FIGS. 4 and 5 show a second embodiment of the relay according to the invention in two sectional views,
  • 6 shows a tongue anchor with carrier and adjusting plate for the relay of FIG. 4 in a perspective view.

Das in der Zeichnung dargestellte Relais besitzt einen Spulenkörper 1 aus Isolierstoff mit einer Wicklung 2. Ein etwa längs der Spulenachse angeordneter, federelastischer Zungenanker 3 ist mit einem Ende 3a im Bereich des einen Spulenflansches 4 befestigt und mit seinem freien Ende 3b im Bereich des Spulenflansches 5 zwischen den beiden Gegenpolblechen 6 und'7 beweglich angeordnet. Die Gegenpolbleche 6 und 7 sind mit ihren in eine gemeinsame Ebene abgebogenen Abschnitten 6a und 7a an einen flachen, vierpoligen Dauermagneten 8 angekoppelt.The relay shown in the drawing has a coil former 1 made of insulating material with a winding 2. A spring-elastic tongue armature 3 arranged approximately along the coil axis is fixed at one end 3a in the area of the one coil flange 4 and with its free end 3b in the area of the coil flange 5 between the two counter-pole plates 6 and ' 7 arranged movably. The opposing pole plates 6 and 7 are coupled with their sections 6a and 7a bent into a common plane to a flat, four-pole permanent magnet 8.

Zur Halterung des Zungenankers 3 dient ein Trägerteil 9, das im wesentlichen senkrecht zur Spulenachse stirnseitig vor dem Spulenflansch 4 liegt und einen ausgeklinkten, in Richtung auf die Spulenachse abgebogenen Steg 9a aufweist, auf welchem das Befestigungsende 3a des Zungenankers, beispielsweise durch Punktschweißung, befestigt ist. Das Trägerteil 9 bildet weiterhin ein Justierblech in Gestalt zweier Justierlappen 9b und 9c, welche über Torsionsstege 9d und 9e mit zwei Befestigungslappen 9f und 9g zusammenhängen. Die Befestigungslappen 9f und 9g sind mittels Bohrungen 9h und 9i auf Befestigungszapfen 10 des Spulenkörperflansches 4 aufgesteckt und durch Warmverformung dieser Befestigungszapfen 10 fixiert. Das Trägerteil 9 besteht aus einem ferromagnetischen Material mit niedriger Federbiegegrenze, vorzugsweise aus Reineisen.A support part 9 is used to hold the tongue anchor 3, which is essentially perpendicular to the coil axis on the end face in front of the coil flange 4 and has a notched web 9a which is bent in the direction of the coil axis and on which the fastening end 3a of the tongue anchor is fastened, for example by spot welding . The carrier part 9 also forms an adjusting plate in the form of two adjusting tabs 9b and 9c, which are connected to two fixing tabs 9f and 9g via torsion bars 9d and 9e. The fastening tabs 9f and 9g are attached to the fastening pin 10 of the bobbin flange 4 by means of bores 9h and 9i and fixed by hot deformation of this fastening pin 10. The carrier part 9 consists of a ferromagnetic material with a low spring limit, preferably pure iron.

Zur Justierung des Zungenankers kann von außen ein Magnetfeld so angelegt werden, daß auf die beiden Justierlappen 9b und 9c ein Drehmoment ausgeübt und dadurch die Torsionsstege 9d und 9e bleibend deformiert werden. Mit dieser Deformation wird auch der fest mit den Justierlappen 9b und 9c verbundene Steg 9a und der auf ihm befestigte Zungenanker 3 verstellt. Das Magnetfeld muß, wie bereits in der DE-A-2 723 219 beschrieben, so angelegt werden, daß die Feldlinien schräg auf das Justierblech bzw. die Justierlappen 9b und 9c auftreffen. Vorzugsweise werden die Feldlinien auf einen Winkel, der größer ist als 60° und kleiner als 90°, gegenüber den Justierlappen eingestellt.To adjust the tongue anchor, a magnetic field can be applied from the outside in such a way that a torque is exerted on the two adjustment tabs 9b and 9c and the torsion bars 9d and 9e are thereby permanently deformed. With this deformation, the web 9a, which is firmly connected to the adjustment tabs 9b and 9c, and the tongue anchor 3 fastened thereon are adjusted. As already described in DE-A-2 723 219, the magnetic field must be applied in such a way that the field lines strike the adjusting plate or the adjusting tabs 9b and 9c at an angle. The field lines are preferably set to an angle that is greater than 60 ° and less than 90 ° with respect to the adjustment tabs.

Die Justierlappen 9b und 9c sind in einer Ausnehmung 11 des Spulenkörperflansches 4 angeordnet, so daß die Justierlappen in dem notwendigen Bereich frei verschwenkt werden können. Um möglichst viele Magnetfeldlinien aufnehmen zu können, sind die Justierlappen 9b und 9c so ausgebildet, daß sie den größten Teil der Stirnseite des Spulenkörpers einnehmen, mit Ausnahme des durch die Befestigungslappen 9f und 9g benötigten Bereiches. Der Justierlappen 9b ist im vorliegenden Beispiel deshalb T-förmig verbreitert. Durch eine Folie 12 kann der Spulenkörper-Innenraum 15 zusammen mit dem die Justierlappen 9b und 9c aufnehmenden Raum 11 abgedeckt werden, während das andere Ende des Spulenkörpers durch eine auf die Polblechabschnitte 6a und 7a aufgelegte Folie 13 abgedeckt ist. Diese Folien 12 und 13 dienen zur vorläufigen Abdeckung, um bei einem nochfolgenden Vergießen des Relais in einer ferromagnetischen Kappe 14 sicherzustellen, daß keine Vergußmasse in den Innenraum 15 des Spulenkörpers 1 eindringt. Gleichzeitig dienen diese Folien 12 und 13 zur elektrischen Isolierung, da der Zungenanker 3 und auch die Gegenpolbleche 6 und 7 gleichzeitig zur elektrischen Kontaktgabe dienen. Entsprechend sind die Gegenpolbleche 6 und 7 mit angeformten Anschlußstiften 6b und 7b versehen, während am Trägerteil 9 ein Anschlußstachel 9k für den Zungenanker angeformt ist. In üblicher Weise sind im Spulenkörper außerdem Anschlußstifte 16 für die Spulenwicklungen eingebettet. Alle Anschlußstifte sind im vorgesehenen Rastermaß angeordnet bzw. in dieses Rastermaß gebogen.The adjustment tabs 9b and 9c are arranged in a recess 11 of the bobbin flange 4, so that the adjustment tabs can be pivoted freely in the necessary area. In order to be able to accommodate as many magnetic field lines as possible, the adjustment tabs 9b and 9c are designed such that they occupy most of the end face of the coil body, with the exception of the area required by the attachment tabs 9f and 9g. The adjustment tab 9b is therefore widened in a T-shape in the present example. The coil body interior 15 can be covered by a film 12 together with the space 11 accommodating the adjustment tabs 9b and 9c, while the other end of the coil body is covered by a film 13 placed on the pole plate sections 6a and 7a. These foils 12 and 13 are used for provisional covering, in order to ensure, when the relay is subsequently potted in a ferromagnetic cap 14, that no potting compound penetrates into the interior 15 of the coil former 1. At the same time, these foils 12 and 13 serve for electrical insulation, since the tongue armature 3 and also the counter-pole plates 6 and 7 simultaneously serve for making electrical contact. Correspondingly, the opposing pole plates 6 and 7 are provided with integrally formed connecting pins 6b and 7b, while a connecting pin 9k for the tongue anchor is integrally formed on the carrier part 9. In the usual way, pins 16 for the coil windings are also embedded in the coil body. All pins are arranged in the intended grid dimension or bent into this grid dimension.

Die ferromagnetische Kappe 14 dient sowohl zur gezielten Führung des Dauermagnetflusses wie auch des Erregerflusses, wobei die Ankopplung zwischen dem Trägerteil 9 und der Kappe 14 trotz des bestehenden Luftspaltes durch die große Fläche der Justierlappen 9b und 9c sowie der Befestigungslappen 9f und 9g relativ gut ist.The ferromagnetic cap 14 serves for the targeted guidance of the permanent magnetic flux as well as the excitation flux, the coupling between the carrier part 9 and the cap 14 being relatively good despite the existing air gap due to the large area of the adjustment tabs 9b and 9c and the mounting tabs 9f and 9g.

Die in.den Fig. 4 und 5 gezeigte Ausführungsform besitzt einen Spulenkörper 21' aus Isolierstoff mit einer Wicklung 22. Ein etwa längs der Spulenachse angeordneter - im Schaltbereich des Ankers federelastischer - Zungenanker 23 ist mit einem ende 23a im Bereich des einen Spulenflansches 24 befestigt und mit seinem freien Ende 23b im Bereich des Spulenflansches 25 zwischen den beiden Gegenpolblechen 26 und 27 beweglich angeordnet. Die Gegenpolbleche 26 und 27 sind mit ihren in eine gemeinsame Ebene abgebogenen Abschnitten 26a und 27a an einen flachen, vierpoligen Dauermagneten 28 angekoppelt.The embodiment shown in FIGS. 4 and 5 has a coil body 21 'made of insulating material with a winding 22. A tongue armature 23, which is arranged approximately along the coil axis and is resilient in the switching area of the armature, is fastened with an end 23a in the area of the one coil flange 24 and with its free end 23b movably arranged in the region of the coil flange 25 between the two opposing pole plates 26 and 27. The opposing pole plates 26 and 27 are coupled with their sections 26a and 27a bent into a common plane to a flat, four-pole permanent magnet 28.

Zur Halterung des Zungenankers 23 dient ein materialeinheitlich mit diesem ausgebildetes, in Form von zwei seitlichen Befestigungsnasen 29a und 29b gebildetes Trägerteil 29, das über Torsionsstege 29c und 29d mit dem Zungenanker 23 zusammenhängt. Am Ende 23a des Zungenankers 23 ist durch rechtwinklige Abbiegung ein Justierblech 30 gebildet, welches durch zweimalige Materialfaltung eine doppelte Wandstärke erhält. Dabei ist dieses Justierblech 30 zunächst mit seinem Schenkel 30a vom Zungenanker 23 aus senkrecht nach oben geführt, dann abgeknickt und mit dem Schenkel 30b senkrecht nach unten verlaufend angeordnet, von wo über einen weiteren Knick der Schenkel 30c in derselben Ebene wie der Schenkel 30a wiederum nach oben verläuft. Mit dieser verdoppelten Wandstärke kann das Justierblech 30 bei der Justierung mit einem Magnetfeld genügend Magnetfeldlinien aufnehmen, um eine Justierung des Zungenankers 23 durch bleibende Verformung an den Torsionsstegen 29c und 29d zu erreichen. Die Federbiegegrenze des Zungenankers bzw. Trägermaterials ist dabei so gewählt, daß bei der geringen Schaltbewegung im Bereich von 0,1 bis 0,2 mm keine bleibende Verformung auftritt, während bei den durch das Justier-Magnetfeld über das Justierblech erzeugten größeren Bewegungen eine plastische Deformation erzielbar ist.A tongue part 23 is used to hold the tongue anchor 23 in the form of a support part 29, which is formed with the same material and is in the form of two lateral fastening lugs 29a and 29b and is connected to the tongue anchor 23 via torsion bars 29c and 29d. At the end 23a of the tongue anchor 23, an adjustment plate 30 is formed by right-angled bending, which is given a double wall thickness by folding the material twice. This adjusting plate 30 is initially guided vertically upwards with its leg 30a from the tongue anchor 23, then bent and arranged vertically downward with the leg 30b, from where the leg 30c in turn in the same plane as the leg 30a again runs above. With this doubled wall thickness, the adjusting plate 30 can absorb enough magnetic field lines when adjusting with a magnetic field in order to achieve an adjustment of the tongue anchor 23 by permanent deformation on the torsion bars 29c and 29d. The spring bending limit of the tongue anchor or carrier material is chosen so that no permanent deformation occurs in the small switching movement in the range from 0.1 to 0.2 mm, while a plastic deformation occurs in the larger movements generated by the adjusting magnetic field via the adjusting plate is achievable.

Die Befestigungsnasen 29a und 29b sind jeweils in Nuten des Spulenkörperflansches 24 durch Einstecken kraftschlüssig befestigt. In Fortsetzung dieser Befestigungsnasen 29a und 29b ist das Blech des Trägerteiles 29 jeweils mit einem Schenkel 29e bzw. 29f rechtwinklig nach oben gebogen, dann geknickt und dann zur Bildung von Flußübergangslappen 29g bzw. 29h senkrecht nach unten geführt. Diese Flußübergangslappen 29g und 29h sind gegenüber dem Justierblech 30 etwas zur Außenseite des Relais hin versetzt, so daß beim Auflegen einer Abdichtfolie 31 und einer Gehäusekappe 32 die freie Beweglichkeit des Justierblechs 30 erhalten bleibt. An dem Flußübergangslappen 29h ist außerdem ein Anschlußstachel 29i angeformt. Im übrigen ist das Relais entsprechend aufgebaut und abgedichtet wie das Relais von Fig. 1. Auch der Justiervorgang geht auf dieselbe Weise wie bei dem dortigen Relais vor sich.The fastening lugs 29a and 29b are each non-positively fastened in the grooves of the coil former flange 24 by insertion. In continuation of these fastening lugs 29a and 29b, the sheet metal of the support part 29 is bent upward at right angles with one leg 29e or 29f, then bent and then guided vertically downward to form flow transition lobes 29g or 29h. These flow transition tabs 29g and 29h are offset somewhat from the adjusting plate 30 towards the outside of the relay, so that the free movement of the adjusting plate 30 is maintained when a sealing film 31 and a housing cap 32 are placed on it. A connecting spike 29i is also integrally formed on the river transition tab 29h. For the rest, the relay is constructed and sealed as the relay of Fig. 1. The adjustment process is the same as that of the relay there.

Claims (10)

1. An electromagnetic relay comprising a tongue armature (3 ; 23) which is arranged within a coil body (1 ; 21) approximately along the axis thereof and supported at one end, which at its free end is positioned opposite at least one counter-pole plate (6, 7 ; 26, 27), which is secured to the coil body (1 ; 21) at its other end by way of a ferromagnetic carrier member (9 ; 29) which has an attached adjusting plate (9b, 9c ; 30) and which in the region between the adjusting plate (9b, 9c ; 30) and the fastening point on the coil body (1 ; 21) further has a theoretical bending point in the form of torsion bridges (9d, 9e ; 29c, 29d), such that the carrier member (9 ; 29) and thus the tongue armature (3 ; 23) are adjustable about said theoretical bending point under the influence of an external magnetic field on the attached adjusting plate (9b, 9c ; 30), characterised in that the adjusting plate (9b, 9c ; 30) is arranged approximately at right angles to the coil axis at the end face in front of one flange (4 ; 24) of the coil body so as to cover the larger part of the end face of the coil body (1 ; 21) ; and that the flange (4 ; 24) of the coil body is also the fastening point for the carrier member (9 ; 29).
2. A relay as claimed in Claim 1, characterised in that the carrier member (9) is made of a material, the spring bending limit of which is lower than that of the tongue armature (3) : and that the tongue armature (3) is secured to a flap (9a) which is bent outwardly from the adjusting plate (9b, 9c) in the direction of the coil axis.
3. A relay as claimed in Claim 1 or Claim 2, characterised in that the torsion bridges (9d, 9e) are in each case connected to respective attached fastening lugs (9f, 9g), which at the end face are fastened so as to lie on the flange (4) of the coil body.
4. A relay as claimed in Claim 3, characterised in that the fastening lugs (9f, 9g) are secured by means of deformed fastening pins (10) of the coil body (1).
5. A relay as claimed in one of Claims 1 to 4, characterised in that the adjusting plate is arranged in a recess (11) in the flange (4) of the coil body.
6. A relay as claimed in one of Claims 1 to 5, characterised in that the adjusting plate (9b) is widened at one end, so as to be T-shaped.
7. A relay as claimed in Claim 1, characterised in that the carrier member (29), together with the tongue armature (23), is designed in one piece as a bent component.
8. A relay as claimed in Claim 7, characterised in that the adjusting plate (30) is reinforced' as regards its thickness by folding of the material (30a, 30b, 30c).
9. A relay as claimed in Claim 7 or Claim 8, characterised in that at its secured end, the tongue armature (23) merges into the adjusting plate (30), which is formed by bending, and at both sides of said end merges into a respective one of the torsion bridges (29c, 29d) which in each case have a fastening projection.
10. A relay as claimed in Claim 9, characterised in that a flux transition lug (29g, 29h), which extends parallel to the adjusting plate (30) and is formed by folding the material, is attached to each fastening projection (29a, 29b).
EP83110708A 1982-10-29 1983-10-26 Electromagnetic relay Expired EP0110132B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3240215A DE3240215C1 (en) 1982-10-29 1982-10-29 Electromagnetic relay
DE3240215 1982-10-29

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EP0110132A1 EP0110132A1 (en) 1984-06-13
EP0110132B1 true EP0110132B1 (en) 1986-06-18

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US (1) US4510473A (en)
EP (1) EP0110132B1 (en)
JP (1) JPS5994323A (en)
DE (2) DE3240215C1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640997C1 (en) * 1986-12-01 1987-12-10 Bosch Gmbh Robert Electromagnetic relay
CH676298A5 (en) * 1987-07-20 1990-12-28 Schrack Elektronik Ag
DE8906678U1 (en) * 1989-05-31 1990-09-27 Siemens AG, 1000 Berlin und 8000 München Polarized armature contact relay
US5594400A (en) * 1995-01-03 1997-01-14 Siemens Stromberg-Carlson Reed relay
JP7044268B2 (en) 2016-11-15 2022-03-30 ガイナー ライフ サイエンシズ，インク． Self-regulating electrolytic gas generator and implant system with it
US11773496B2 (en) 2018-05-17 2023-10-03 Giner, Inc. Combined electrical lead and gas port terminals and electrolytic gas generator comprising same
CN114223438B (en) * 2022-01-26 2022-11-22 陕西理工大学 Domestic flower cultivation system suitable for area that temperature is lower

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE2701230B2 (en) * 1977-01-13 1980-04-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electromagnetic relay and its adjustment procedure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723219C2 (en) * 1977-05-23 1985-01-17 Siemens AG, 1000 Berlin und 8000 München Electromagnetic relay

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2701230B2 (en) * 1977-01-13 1980-04-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electromagnetic relay and its adjustment procedure

Also Published As

Publication number Publication date
EP0110132A1 (en) 1984-06-13
US4510473A (en) 1985-04-09
DE3240215C1 (en) 1984-03-22
JPS5994323A (en) 1984-05-31
DE3364207D1 (en) 1986-07-24
JPH0115967B2 (en) 1989-03-22

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