EP0167942B1 - Polarized electromagnetic miniature relay - Google Patents

Polarized electromagnetic miniature relay Download PDF

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Publication number
EP0167942B1
EP0167942B1 EP85108025A EP85108025A EP0167942B1 EP 0167942 B1 EP0167942 B1 EP 0167942B1 EP 85108025 A EP85108025 A EP 85108025A EP 85108025 A EP85108025 A EP 85108025A EP 0167942 B1 EP0167942 B1 EP 0167942B1
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EP
European Patent Office
Prior art keywords
armature
coil
area
penetration
flux plate
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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
EP85108025A
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German (de)
French (fr)
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EP0167942A1 (en
Inventor
Helmut Dipl.-Ing. Schedele (Fh)
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Siemens AG
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Siemens AG
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Publication of EP0167942A1 publication Critical patent/EP0167942A1/en
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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
    • 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

Definitions

  • the invention relates to a polarized miniature electromagnetic relay with an excitation coil and a rod-shaped armature, arranged axially within the coil and mounted in the area of a first coil flange, the free end of which in the area of a second coil flange in the space between two angled by yoke plates Opposing pole shoes protrudes, the yoke sheets - lying side by side over a large area in a plane parallel to the coil axis - are magnetically coupled with two poles of the same name of a four-pole permanent magnet arrangement and the two poles of the permanent magnet arrangement facing away from the yoke sheets extend over a parallel to the yoke sheets and next to the coil winding Flux plate are magnetically coupled to each other and via a section of the flow plate angled perpendicular to the coil axis to the bearing area of the armature.
  • Such a relay is known from EP-A-0 072 975 and EP-A-0 072 976.
  • the supported end of the armature is anchored there in an insulating material carrier, which in turn is rotatably supported in extensions of the coil body by means of interlocking bearing elements.
  • the flow plate reaches there over the insulating material carrier and is angled with its angled end to the end of the anchor, but without touching it because of the otherwise occurring friction. Because of this air gap with tolerances between the flux plate and the anchor end, there are the magnetic circuits, i. that is, the permanent magnetic circuit and the excitation circuit are not completely closed. With a given permanent magnet, this results in a reduction in the contact force as well as in an increased excitation power.
  • the storage between the insulating material carrier of the armature and the coil body requires a relatively complicated shape of these plastic parts.
  • a relay is known with a rod-shaped armature, arranged axially within the coil, in which the armature is mounted in the opening of the first coil flange in an opening in the yoke.
  • the bearing end of the armature is T-shaped to form a cutting edge bearing.
  • the armature also has additional holding wings, on which a specially attached and relatively complicated adjusting spring engages. In this way, the known anchor bearing is relatively complex, since additional and complicated parts have to be manufactured and assembled.
  • the object of the invention is to develop a relay of the type mentioned in such a way that the mounting of the armature is simplified and the magnetic circuit is nevertheless closed even better.
  • this object is achieved in that the angled section of the flow plate has an opening, that the anchor is inserted through the opening and is mounted in the area of this opening and that the anchor tapers prismatically in the area of the opening of the flow plate and / or the opening extends prismatically is such that the armature is parallel to a side wall of the opening in each of its two end positions.
  • the inventive implementation of the anchor through a breakthrough of the flow plate and with its storage directly on this flow plate, an improved result. magnetic flux transition and thus a lower response power. Since the flux plate is bent directly on the coil flange and the armature end does not encompass the insulating material carrier, which may be attached to the armature end, the flow path length is shorter overall than in the known relay mentioned at the outset, so that less leakage flux is lost. Furthermore, in the construction according to the invention, the armature is mounted directly on the flow plate, so that the coil body can be made simpler. Since this bobbin itself does not form a bearing, its material can also be selected without regard to sliding properties, so that, for example, a more temperature-resistant material can be used.
  • the flow plate can tightly enclose the armature in the region of its pivot axis without being hindered in its switching movement.
  • the anchor itself is expediently widened in a T-shape at its bearing end outside of the flux plate section, so that it rests with bearing edges on the flux plate section and can roll on it.
  • the armature is anchored at its end adjacent to the bearing in an insulating material carrier which carries on both sides a contact spring which extends parallel to the axis next to the coil.
  • the armature can also be held in its storage position by means of resilient current leads for the contact springs. Regardless of this, it is also drawn into its bearing on the flow plate by the permanent magnetic forces that act at the transition between the flow plate and anchor.
  • FIG. 1 and 2 schematically show a polarized magnet system as used in a relay according to the invention.
  • the system comprises a permanent magnet 1 which has four poles with two opposite polarization directions.
  • a flux plate 2 or 3 is coupled to the two lower poles of the flat permanent magnet 1.
  • the front ends of the flux plates 2 and 3 are bent in parallel parallel to each other so that they form two pole pieces 2a and 3a.
  • the two upper poles of the permanent magnet 1 are coupled to one another via a flux plate 4.
  • An elongated, rod-shaped armature 5 is arranged approximately axially within an excitation coil 6, so that it can be switched with its free end 5a between the two pole pieces 2a and 3a.
  • the armature is mounted on a section 4a of the flux plate 4 which is angled perpendicular to the coil axis.
  • the flow plate forms an opening 4b in this area, through which the anchor is inserted.
  • the anchor rests with the edges 5c and 5d on the flow plate section 4a, so that a good flow transition is ensured.
  • FIGS. 3 and 4 A specific embodiment for a relay according to the invention is shown in FIGS. 3 and 4.
  • the magnet system is designed as in FIGS. 1 and 2, so that the same reference numerals are used for the same parts.
  • the winding 6 is carried by a bobbin 7, which has a flange 8 and 9 at its two ends.
  • the coil body 7 is provided with an axial bore 10 in which the armature 5 is arranged lengthwise.
  • the pole pieces 2a and 3a are anchored in the coil body in the area of the coil flange 9, while the flux plate extension 4a abuts the coil flange 8.
  • These center contact springs 12 extend parallel to the armature in each case next to the coil and, depending on the armature position, form contact with mating contact elements 13 or 14, respectively.
  • the coil body 7 is seated on a base 15 in which the mating contact elements 13 and 14 with their associated connecting lugs 13a are on both sides and 14a and a center contact terminal 16 are anchored to a terminal lug 16a.
  • the center contact springs 12 are each connected to the associated connecting element 16 via a flexible connecting element 17.
  • the connecting elements 17 present on both sides of the relay simultaneously hold the armature in its storage position; they can also exert a directing force on the armature, for example a one-sided bias in the sense of a monostable switching characteristic.
  • the anchor 4 is shown in an enlarged view, namely side view and top view.
  • the flow plate section 4a is shown as an indication.
  • the pivoting movement of the armature is indicated in FIG. 6 by the double arrow 18.
  • the armature in the area of this opening is slightly tapered towards its switching end, so that a side surface 5e in the opening in each of the two end positions is parallel to the side wall 4c or 4d of the Breakthrough stands. It would of course also be just as possible to leave the anchor with continuously parallel side surfaces and to make the opening of the river plate tapered.
  • the side surfaces 5f also run obliquely in order to facilitate the anchor movement.
  • the armature is held in the bearing via the contact springs 12 by the connecting elements 17. But it is also permanently magnetically attracted with its T-shaped widened end 5b to the flux plate section 4a, so that it can roll with its (rounded) leading edges 5c or 5d on the flux plate when switching.
  • the anchor could also be used without the T-shaped widening, in which case it would only be rod-shaped through the opening in the flow plate. However, the river crossing would then be worse. Unrolling of the armature could also be achieved in this case, for example by a suitably designed cutting edge of the carrier 11.
  • the base also has coil connecting pins 19, and a columnar getter 20 is also attached to the base for cleaning the contact atmosphere.
  • the relay is closed with a cap 21 in the usual manner and sealed on the underside with potting compound 22.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Relay Circuits (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Description

Die Erfindung bezieht sich auf ein polarisiertes elektromagnetisches Miniaturrelais mit einer Erregerspule und einem stabförmigen, innerhalb der Spule axial angeordneten und im Bereich eines ersten Spulenflansches gelagerten Anker, der mit seinem freien Ende im Bereich eines zweiten Spulenflansches in den Raum zwischen zwei von Jochblechen abgewinkelten, einander gegenüberstehenden Polschuhen ragt, wobei die Jochbleche - großflächig in einer zur Spulenachse parallelen Ebene nebeneinander liegend - mit zwei ungleichnamigen Polen einer vierpoligen Dauermagnetanordnung magnetisch gekoppelt sind und die beiden von den Jochblechen abgewandten Pole der Dauermagnetanordnung über ein sich parallel zu den Jochblechen und neben der Spulenwicklung erstreckendes Flußblech miteinander und über einen senkrecht zur Spulenachse abgewinkelten Abschnitt des Flußbleches an den Lagerbereich des Ankers magnetisch gekoppelt sind.The invention relates to a polarized miniature electromagnetic relay with an excitation coil and a rod-shaped armature, arranged axially within the coil and mounted in the area of a first coil flange, the free end of which in the area of a second coil flange in the space between two angled by yoke plates Opposing pole shoes protrudes, the yoke sheets - lying side by side over a large area in a plane parallel to the coil axis - are magnetically coupled with two poles of the same name of a four-pole permanent magnet arrangement and the two poles of the permanent magnet arrangement facing away from the yoke sheets extend over a parallel to the yoke sheets and next to the coil winding Flux plate are magnetically coupled to each other and via a section of the flow plate angled perpendicular to the coil axis to the bearing area of the armature.

Ein derartiges Relais ist aus der EP-A-0 072 975 und der EP-A-0 072 976 bekannt. Das gelagerte Ende des Ankers ist dort in einem Isolierstoffträger verankert, welcher seinerseits mittels ineinandergreifender Lagerorgane in Fortsätzen des Spulenkörpers drehbar gelagert ist. Das Flußblech greift dort über den Isolierstoffträger hinweg und ist mit seinem abgewinkelten Ende an das Ankerende angenähert, ohne dieses jedoch wegen der ansonsten auftretenden Reibung zu berühren. Wegen dieses mit Toleranzen behafteten Luftspalts zwischen Flußblech und Ankerende sind dort die Magnetkreise, d. h., der dauermagnetische Kreis und der Erregerkreis, nicht vollständig geschlossen. Dies wirkt sich bei vorgegebenem Dauermagnet in einer Verminderung der Kontaktkraft wie auch in einer erhöhten Erregerleistung aus. Außerdem bedingt die Lagerung zwischen dem Isolierstoffträger des Ankers und dem Spulenkörper eine verhältnismäßig komplizierte Formgebung dieser Kunststoffteile.Such a relay is known from EP-A-0 072 975 and EP-A-0 072 976. The supported end of the armature is anchored there in an insulating material carrier, which in turn is rotatably supported in extensions of the coil body by means of interlocking bearing elements. The flow plate reaches there over the insulating material carrier and is angled with its angled end to the end of the anchor, but without touching it because of the otherwise occurring friction. Because of this air gap with tolerances between the flux plate and the anchor end, there are the magnetic circuits, i. that is, the permanent magnetic circuit and the excitation circuit are not completely closed. With a given permanent magnet, this results in a reduction in the contact force as well as in an increased excitation power. In addition, the storage between the insulating material carrier of the armature and the coil body requires a relatively complicated shape of these plastic parts.

Aus der DE-B-2 345 638 ist ein Relais mit einem stabförmigen, innerhalb der Spule axial angeordneten Anker bekannt, bei dem der Anker im Bereich des ersten Spulenflansches in einem Durchbruch des Joches gelagert ist. Das Lagerende des Ankers ist dabei zur Bildung einer Schneidenlagerung T-förmig ausgestaltet. Darüber hinaus weist der Anker aber auch zusätzliche Halteflügel auf, an denen eine eigens befestigte und relativ kompliziert gestaltete Justierfeder angreift. Auf diese Weise ist die bekannte Ankerlagerung verhältnismäßig aufwendig, da zusätzliche und kompliziert gestaltete Teile hergestellt und montiert werden müssen.From DE-B-2 345 638 a relay is known with a rod-shaped armature, arranged axially within the coil, in which the armature is mounted in the opening of the first coil flange in an opening in the yoke. The bearing end of the armature is T-shaped to form a cutting edge bearing. In addition, the armature also has additional holding wings, on which a specially attached and relatively complicated adjusting spring engages. In this way, the known anchor bearing is relatively complex, since additional and complicated parts have to be manufactured and assembled.

Aufgabe der Erfindung ist es, ein Relais der eingangs genannten Art so weiterzubilden, daß die Lagerung des Ankers vereinfacht und trotzdem der Magnetkreis noch besser geschlossen wird.The object of the invention is to develop a relay of the type mentioned in such a way that the mounting of the armature is simplified and the magnetic circuit is nevertheless closed even better.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der abgewinkelte Abschnitt des Flußbleches einen Durchbruch aufweist, daß der Anker durch den Durchbruch gesteckt und im Bereich dieses Durchbruchs gelagert ist und daß der Anker im Bereich des Durchbruchs des Flußbleches prismatisch verjüngt und/oder der Durchbruch prismatisch erweitert ist, derart, daß der Anker in jeder seiner beiden Endstellungen parallel zu einer Seitenwand des Durchbruches liegt.According to the invention, this object is achieved in that the angled section of the flow plate has an opening, that the anchor is inserted through the opening and is mounted in the area of this opening and that the anchor tapers prismatically in the area of the opening of the flow plate and / or the opening extends prismatically is such that the armature is parallel to a side wall of the opening in each of its two end positions.

Mit der erfindungsgemäß vorgesehenen Durchführung des Ankers durch einen Durchbruch des Flußblechs und mit dessen Lagerung unmittelbar an diesem Flußblech ergibt sich ein verbesserter . magnetischer Flußübergang und damit eine kleinere Ansprechleistung. Da das Flußblech im übrigen unmittelbar am Spulenflansch abgebogen ist und das Ankerende mit dem gegebenenfalls am Ankerende befestigten Isolierstoffträger nicht umgreift, ist die Flußweglänge insgesamt kürzer als bei dem eingangs genannten bekannten Relais, so daß auch weniger Streufluß verloren geht. Weiterhin ist bei der erfindungsgemäßen Konstruktion der Anker unmittelbar am Flußblech gelagert, so daß der Spulenkörper einfacher gestaltet werden kann. Da dieser Spulenkörper selbst keine Lagerung bildet, kann sein Werkstoff auch ohne Rücksicht auf Gleiteigenschaften gewählt werden, so daß beispielsweise ein temperaturbeständigerer Werkstoff verwendet werden kann. Die Vereinfachung der Lagerkonstruktion und die Verbesserung der Ankopplung zwischen Anker und Flußblech sind im Hinblick auf auftretende Toleranzen besonders dadurch bedeutungsvoll, daß Relais mit diesem Aufbau in der Größenordnung von etwa 1 ccm hergestellt werden, wobei also bereits Abstandstoleranzen von Bruchteilen von Millimetern sich erheblich auf die Fertigungsgenauigkeit und die Funktionsfähigkeit auswirken.With the inventive implementation of the anchor through a breakthrough of the flow plate and with its storage directly on this flow plate, an improved result. magnetic flux transition and thus a lower response power. Since the flux plate is bent directly on the coil flange and the armature end does not encompass the insulating material carrier, which may be attached to the armature end, the flow path length is shorter overall than in the known relay mentioned at the outset, so that less leakage flux is lost. Furthermore, in the construction according to the invention, the armature is mounted directly on the flow plate, so that the coil body can be made simpler. Since this bobbin itself does not form a bearing, its material can also be selected without regard to sliding properties, so that, for example, a more temperature-resistant material can be used. The simplification of the bearing construction and the improvement of the coupling between the anchor and the flow plate are particularly significant with regard to the tolerances that occur, in that relays with this construction are produced in the order of magnitude of approximately 1 ccm, so that distance tolerances of fractions of a millimeter are significantly affected Manufacturing accuracy and functionality affect.

Durch die erfindungsgemäß weiterhin vorgesehene prismatische Verjüngung des Ankers bzw. die primatische Erweiterung des Durchbruches kann das Flußblech den Anker im Bereich seiner Schwenkachse eng umschließen, ohne daß er in seiner Schaltbewegung behindert würde. Der Anker selbst ist zweckmäßigerweise an seinem Lagerende außerhalb des Flußblechabschnittes T-förmig verbreitert, so daß er mit Lagerkanten an dem Flußblechabschnitt anliegt und an diesem abrollen kann.As a result of the prismatic tapering of the armature, which is also provided according to the invention, or the primitive widening of the opening, the flow plate can tightly enclose the armature in the region of its pivot axis without being hindered in its switching movement. The anchor itself is expediently widened in a T-shape at its bearing end outside of the flux plate section, so that it rests with bearing edges on the flux plate section and can roll on it.

In weiterer Ausgestaltung ist der Anker an seinem der Lagerung benachbarten Ende in einem Isolierstoffträger verankert, welcher beiderseits jeweils eine sich achsparallel neben der Spule erstreckende Kontaktfeder trägt. Über federnde Stromzuführungen für die Kontaktfedern kann über den -isolierenden Träger auch der Anker in seiner Lagerposition gehalten werden. Unabhängig davon wird er aber auch durch die dauermagnetischen Kräfte, die am Übergang zwischen Flußblech und Anker wirken, in seine Lagerstelle am Flußblech gezogen.In a further embodiment, the armature is anchored at its end adjacent to the bearing in an insulating material carrier which carries on both sides a contact spring which extends parallel to the axis next to the coil. The armature can also be held in its storage position by means of resilient current leads for the contact springs. Regardless of this, it is also drawn into its bearing on the flow plate by the permanent magnetic forces that act at the transition between the flow plate and anchor.

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

  • Fig. 1 und 2 den schematischen Aufbau eines Magnetsystems für ein erfindungsgemäßes Relais in Seiten- und in Vorderansicht,
  • Fig. 3 ein erfindungsgemäß gestaltetes vollständiges Relais in Seitenansicht (mit geschnittener Kappe),
  • Fig. 4 das Relais von Fig. 3 in Aufsicht, zur Hälfte geschnitten (ebenfalls mit geschnittenem Deckel),
  • Fig. 5 und 6 einen Anker für ein Relais gemäß Fig. 3 in zwei Ansichten.
The invention is explained in more detail below using exemplary embodiments with reference to the drawing. Show it
  • 1 and 2, the schematic structure of a magnet system for a relay according to the invention in side and front view,
  • 3 is a side view of a complete relay designed according to the invention (with a cut cap),
  • 4 shows the relay of FIG. 3 in supervision, cut in half (also with a cut cover),
  • 5 and 6 an armature for a relay according to FIG. 3 in two views.

In den Fig. 1 und 2 ist schematisch ein polarisiertes Magnetsystem dargestellt, wie es bei einem erfindungsgemäßen Relais zum Einsatz kommt. Das System umfaßt einen Dauermagneten 1, der mit zwei entgegengesetzten Polarisierungsrichtungen vier Pole aufweist. An den beiden unteren Polen des flachen Dauermagneten 1 ist jeweils ein Flußblech 2 bzw. 3 angekoppelt. An einem Ende des Relais sind die vorderen Enden der Flußbleche 2 und 3 nach innen parallel zueinander abgebogen, so daß sie zwei Polschuhe 2a und 3a bilden. Die beiden oberen Pole des Dauermagneten 1 sind über ein Flußblech 4 miteinander gekoppelt. Ein Langgestreckter, stabförmiger Anker 5 ist etwa axial innerhalb einer Erregerspule 6 angeordnet, so daß er mit seinem freien Ende 5a zwischen den beiden Polschuhen 2a und 3a umschaltbar ist. Am entgegengesetzten Ende ist der Anker an einem senkrecht zu Spulenachse abgewinkelten Abschnitt 4a des Flußbleches 4 gelagert. Das Flußblech bildet in diesem Bereich einen Durchbruch 4b, durch welchen der Anker gesteckt ist. Mit einem T-förmig verbreiterten Ende 5b liegt der Anker mit den Kanten 5c und 5d an dem Flußblechabschnitt 4a an, so daß ein guter Flußübergang gewährleistet ist.1 and 2 schematically show a polarized magnet system as used in a relay according to the invention. The system comprises a permanent magnet 1 which has four poles with two opposite polarization directions. A flux plate 2 or 3 is coupled to the two lower poles of the flat permanent magnet 1. At one end of the relay, the front ends of the flux plates 2 and 3 are bent in parallel parallel to each other so that they form two pole pieces 2a and 3a. The two upper poles of the permanent magnet 1 are coupled to one another via a flux plate 4. An elongated, rod-shaped armature 5 is arranged approximately axially within an excitation coil 6, so that it can be switched with its free end 5a between the two pole pieces 2a and 3a. At the opposite end, the armature is mounted on a section 4a of the flux plate 4 which is angled perpendicular to the coil axis. The flow plate forms an opening 4b in this area, through which the anchor is inserted. With a T-shaped widened end 5b, the anchor rests with the edges 5c and 5d on the flow plate section 4a, so that a good flow transition is ensured.

Ein konkretes Ausführungsbeispiel für ein erfindungsgemäßes Relais ist in den Fig. 3 und 4 dargestellt. Dabei ist das Magnetsystem wie in Fig. 1 und 2 ausgebildet, so daß die gleichen Bezugszeichen für gleiche Teile verwendet werden. Die Wicklung 6 wird von einem Spulenkörper 7 getragen, der an seinen beiden Enden jeweils einen Flansch 8 bzw. 9 besitzt. Außerdem ist der Spulenkörper 7 mit einer axialen Bohrung 10 versehen, in welcher der Anker 5 der Länge nach angeordnet ist. Die Polschuhe 2a und 3a sind im Bereich des Spulenflansches 9 im Spulenkörper verankert, während der Flußblechfortsatz 4a am Spulenflansch 8 anliegt.A specific embodiment for a relay according to the invention is shown in FIGS. 3 and 4. The magnet system is designed as in FIGS. 1 and 2, so that the same reference numerals are used for the same parts. The winding 6 is carried by a bobbin 7, which has a flange 8 and 9 at its two ends. In addition, the coil body 7 is provided with an axial bore 10 in which the armature 5 is arranged lengthwise. The pole pieces 2a and 3a are anchored in the coil body in the area of the coil flange 9, while the flux plate extension 4a abuts the coil flange 8.

Der Anker 5, der durch den Durchbruch 4b des Flußbleches 4 gesteckt ist, ist mit seinem T-förmig verbreiterten Ende 5b in einem Isolierstoffträger 11 verankert, welcher beiderseits jeweils eine Mittelkontaktfeder 12 trägt. Diese Mittelkontaktfedern 12 erstrecken sich parallel zum Anker jeweils neben der Spule und bilden je nach Ankerstellung jeweils Kontakt mit Gegenkontaktelementen 13 oder 14. Der Spulenkörper 7 sitzt auf einem Sockel 15, in welchem zu beiden Seiten jeweils die Gegenkontaktelemente 13 und 14 mit ihren zugehörigen Anschlußfahnen 13a und 14a sowie jeweils ein Mittelkontaktanschluß 16 mit einer Anschlußfahne 16a verankert sind. Die Mittelkontaktfedern 12 sind jeweils über ein flexibles Verbindungselement 17 mit dem zugehörigen Anschlußelement 16 verbunden. Die zu beiden Seiten des Relais Vorhandenen Verbindungselemente 17 halten gleichzeitig den Anker in seiner Lagerposition ; sie können auch eine Richtkraft auf den Anker, beispielsweise eine einseitige Vorspannung im Sinne einer monostabilen Schaltcharakteristik ausüben.The armature 5, which is inserted through the opening 4b of the flow plate 4, is anchored with its T-shaped widened end 5b in an insulating material carrier 11, which carries a center contact spring 12 on both sides. These center contact springs 12 extend parallel to the armature in each case next to the coil and, depending on the armature position, form contact with mating contact elements 13 or 14, respectively. The coil body 7 is seated on a base 15 in which the mating contact elements 13 and 14 with their associated connecting lugs 13a are on both sides and 14a and a center contact terminal 16 are anchored to a terminal lug 16a. The center contact springs 12 are each connected to the associated connecting element 16 via a flexible connecting element 17. The connecting elements 17 present on both sides of the relay simultaneously hold the armature in its storage position; they can also exert a directing force on the armature, for example a one-sided bias in the sense of a monostable switching characteristic.

Das Ineinandergreifen von Anker und Flußblech sei nachfolgend noch anhand der Einzelteildarstellung in den Fig. 5 und 6 beschrieben. Dort ist der Anker 4 in vergrößerter Darstellung gezeigt, und zwar Seitenansicht und in Draufsicht. Außerdem ist der Flußblechabschnitt 4a andeutungsweise gezeigt. Die Schwenkbewegung des Ankers ist in Fig. 6 mit dem Doppelpfeil 18 angedeutet. Um eine freie Schaltbewegung des Ankers in dem Durchbruch 4b zu ermöglichen, ist der Anker im Bereich dieses Durchbruchs zu seinem schaltenden Ende hin leicht konisch verjüngt, so daß eine Seitenfläche 5e im Durchbruch in jeder der beiden Endstellungen jeweils parallel zur Seitenwand 4c bzw. 4d des Durchbruchs steht. Genausogut wäre es natürlich auch möglich, den Anker mit durchgehend parallelen Seitenflächen zu belassen und den Durchbruch des Flußblechs konisch zulaufen zu lassen. Auch die Seitenflächen 5f verlaufen schräg, um die Ankerbewegung zu erleichtern.The interlocking of the anchor and the flux plate is described below with reference to the individual parts in FIGS. 5 and 6. There, the anchor 4 is shown in an enlarged view, namely side view and top view. In addition, the flow plate section 4a is shown as an indication. The pivoting movement of the armature is indicated in FIG. 6 by the double arrow 18. In order to enable a free switching movement of the armature in the opening 4b, the armature in the area of this opening is slightly tapered towards its switching end, so that a side surface 5e in the opening in each of the two end positions is parallel to the side wall 4c or 4d of the Breakthrough stands. It would of course also be just as possible to leave the anchor with continuously parallel side surfaces and to make the opening of the river plate tapered. The side surfaces 5f also run obliquely in order to facilitate the anchor movement.

Wie bereits erwähnt, wird der Anker über die Kontaktfedern 12 durch die Verbindungselemente 17 im Lager gehalten. Er wird aber auch dauermagnetisch mit seinem T-förmig verbreiterten Ende 5b an den Flußblechabschnitt 4a angezogen, so daß er mit seinen (abgerundeten) Vorderkanten 5c bzw. 5d an dem Flußblech beim Schalten abrollen kann. Der Anker könnte aber auch ohne die T-förmige Verbreiterung eingesetzt werden, wobei er lediglich stabförmig durch den Durchbruch des Flußbleches geführt wäre. Allerdings wäre dann der Flußübergang schlechter. Ein Abrollen des Ankers könnte auch in diesem Fall, beispielsweise durch eine entsprechend ausgebildete Schneide des Trägers 11 erreicht werden.As already mentioned, the armature is held in the bearing via the contact springs 12 by the connecting elements 17. But it is also permanently magnetically attracted with its T-shaped widened end 5b to the flux plate section 4a, so that it can roll with its (rounded) leading edges 5c or 5d on the flux plate when switching. However, the anchor could also be used without the T-shaped widening, in which case it would only be rod-shaped through the opening in the flow plate. However, the river crossing would then be worse. Unrolling of the armature could also be achieved in this case, for example by a suitably designed cutting edge of the carrier 11.

Zur Vervollständigung des Relais besitzt der Sockel noch Spulenanschlußstifte 19, außerdem ist zur Reinigung der Kontaktatmosphäre ein säulenförmiger Getter 20 am Sockel befestigt. Das Relais ist mit einer Kappe 21 in üblicher Weise verschlossen und an der Unterseite mit Vergußmasse 22 abgedichtet.To complete the relay, the base also has coil connecting pins 19, and a columnar getter 20 is also attached to the base for cleaning the contact atmosphere. The relay is closed with a cap 21 in the usual manner and sealed on the underside with potting compound 22.

Claims (5)

1. Polarized electromagnetic miniature relay with an exciter coil (6) and a rod-shaped armature (5) which is axially arranged inside the coil and supported in the area of a first coil flange (8) and which projects with its free end (5a) in the area of a second coil flange (9) into the space between two pole shoes (2a, 3a) which are opposite to one another and angled away from yoke plates (2, 3), the yoke plates (2, 3) - located next to one another of a large area in a plane parallel to the coil axis - being magnetically coupled to two opposite poles of a four-pole permanent magnetic arrangement (1) and the two poles, facing away from the yoke plates (2, 3), of the permanent magnetic arrangement (1) being coupled to one another via a flux plate (4) extending parallel to the yoke plates (2, 3) and adjacent to the coil winding (6) and being magnetically coupled to the support area of the armature (5) via a section (4a) of the flux plate which is angled away perpendicularly to the coil axis, characterized in that the angled-away section (4a) of the flux plate (4) exhibits a penetration (4b), that the armature (5) is inserted through the penetration and is supported in the area of the penetration and that the armature (5) is prismatically taped in the area of the penetration (4b) of the flux plate (4) and/or the penetration is prismatically expanded in such a manner that the armature (5) is parallel to a side wall (4c, 4d) of the penetration in each of its two end positions.
2. Relay according to Claim 1, characterized in that the end (5b) of the armature adjacent to the support point is anchored in a carrier (11) of insulating material in which at least one contact spring (12) extending parallel to the armature next to the coil winding is attached.
3. Relay according to Claim 1 or 2, characterized in that the armature (5) is widened in a T-shape at its end (5b) adjacent to the support and rests against the flux plate section (4a) with support edges (5c, 5d).
4. Relay according to Claim 2, characterized in that the area (11) of insulating material rests against the flux plate section (4a) by means of a support blade.
5. Relay according to one of Claims 2-4, characterized in that the armature is held in the support via elastic current supply elements (17) of the contact springs (12).
EP85108025A 1984-07-03 1985-06-28 Polarized electromagnetic miniature relay Expired EP0167942B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3424464 1984-07-03
DE19843424464 DE3424464A1 (en) 1984-07-03 1984-07-03 POLARIZED ELECTROMAGNETIC MINIATURE RELAY

Publications (2)

Publication Number Publication Date
EP0167942A1 EP0167942A1 (en) 1986-01-15
EP0167942B1 true EP0167942B1 (en) 1989-03-15

Family

ID=6239733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108025A Expired EP0167942B1 (en) 1984-07-03 1985-06-28 Polarized electromagnetic miniature relay

Country Status (4)

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US (1) US4609896A (en)
EP (1) EP0167942B1 (en)
JP (1) JPS6132321A (en)
DE (2) DE3424464A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2085967C (en) * 1991-12-24 1997-11-11 Kazuhiro Nobutoki Polarized relay

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089670A2 (en) * 1982-03-23 1983-09-28 Siemens Aktiengesellschaft Electromagnetic relay

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1201918B (en) * 1962-04-28 1965-09-30 Arthur Klemt Armature bearing for relay
DE1243271B (en) * 1966-04-12 1967-06-29 Hans Sauer Electromagnetic changeover relay with protected contact system
DE2345638B1 (en) * 1973-04-13 1974-06-20 Hans Sauer Electromagnetic relay
ZA757910B (en) * 1974-12-13 1976-12-29 Matsushita Electric Works Ltd Electromagnetic relay
FR2314576A1 (en) * 1975-06-11 1977-01-07 Matsushita Electric Works Ltd BLADE RELAY
DE3132239C2 (en) * 1981-08-14 1986-12-04 Siemens AG, 1000 Berlin und 8000 München Electromagnetic relay
DE3132244C2 (en) * 1981-08-14 1983-05-19 Siemens AG, 1000 Berlin und 8000 München Polarized electromagnetic relay

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089670A2 (en) * 1982-03-23 1983-09-28 Siemens Aktiengesellschaft Electromagnetic relay

Also Published As

Publication number Publication date
DE3424464A1 (en) 1986-01-16
DE3568905D1 (en) 1989-04-20
EP0167942A1 (en) 1986-01-15
US4609896A (en) 1986-09-02
JPS6132321A (en) 1986-02-15

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