EP0034811B1 - Polarized magnet system - Google Patents

Polarized magnet system Download PDF

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Publication number
EP0034811B1
EP0034811B1 EP81101189A EP81101189A EP0034811B1 EP 0034811 B1 EP0034811 B1 EP 0034811B1 EP 81101189 A EP81101189 A EP 81101189A EP 81101189 A EP81101189 A EP 81101189A EP 0034811 B1 EP0034811 B1 EP 0034811B1
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EP
European Patent Office
Prior art keywords
permanent magnet
coil
core
sheets
magnet system
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Expired
Application number
EP81101189A
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German (de)
French (fr)
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EP0034811A1 (en
Inventor
Rolf-Dieter Dipl.-Phys. Kimpel
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Siemens AG
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Siemens AG
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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
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
    • 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
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Definitions

  • the invention relates to a polarized magnet system with a coil with a coil core and with an elongated armature, which is arranged essentially parallel to the coil axis and is located approximately above the coil center and carries a permanent magnet arrangement Formation of working air gaps includes pliers.
  • Such H-anchors can only contain relatively short permanent magnets for a given total length of the coil and thus also the armature, while a substantial part of the volume between the two armatures does not have to remain free to form the air gaps. Because of the small permanent magnet volume, high-quality and therefore expensive magnet materials have to be used in order to achieve a certain performance of the magnet system.
  • the object of the invention is to design a polarized magnet system of the type mentioned in such a way that the magnet volume given. Overall dimensions can be as large as possible.
  • the aim of the magnet system is to optimize its performance with a given size.
  • this object is achieved in that the ends of the rotating armature are angled at their ends perpendicular to the coil axis in the direction of the coil core, the angled leg ends each forming the working air gap with the coil core.
  • This inventive design of the armature makes it possible to extend the permanent magnet arrangement to the end of the respective axially parallel leg piece of the armature.
  • the permanent magnet or the permanent magnet arrangement can be as long as the armature itself.
  • the permanent magnet flux can be increased with the same dimensions. This possibility can play a role in particular in the case of further miniaturization of such a magnet system, for example for relays.
  • Another advantage of the angling of the armature ends according to the invention is that the working air spah is shifted towards the coil. In this way, the control flow can be better utilized since the leakage flows are reduced.
  • the core no longer needs to be provided with long yoke legs as in the case of an H anchor system. It is sufficient, for example, if the coil core is straight and only has axially projecting pole ends on both ends of the coil. To enlarge the pole faces, short elbows can be formed in the direction of the armature.
  • the rotary anchor consists of two parallel, U-shaped sheets, between which the permanent magnet arrangement is arranged parallel to one another on both sides of the bearing with polarization of the same direction.
  • the rotary armature has two sheets lying in one plane parallel to the coil axis, at the ends of which tabs are bent parallel to the pole faces of the coil core, a flat permanent magnet arrangement covering both sheets being attached to the sheets.
  • This permanent magnet arrangement can, for example, be polarized parallel to the plane of the sheets. In this case, the permanent magnetic circuit is closed directly via the two sheets.
  • the permanent magnet arrangement can also have mutually opposite polarization directions perpendicular to the plane of the sheets. In this case, it is advisable to attach a flux guide plate over the permanent magnet arrangement.
  • the armature can furthermore consist of two armature legs arranged with a Z-shaped ferromagnetic center piece and two pole pieces coupled to the armature legs via a permanent magnet, the two permanent magnets being in series via the ferromagnetic center piece.
  • Fig. 1 shows in section a conventional H-armature, as it was used in magnetic systems according to the prior art. It essentially consists of two ferromagnetic webs 1 and 2, which are arranged parallel to one another and enclose two permanent magnets 3 and 4 between them.
  • the middle part 5 consists of non-ferromagnetic material, for example plastic, and contains a La gerbuchse 6.
  • the rotary anchor is mounted with this bearing bush on a coil, not shown, that the leg ends 1a, 2a and 1b, 2b each form working air gaps with the yoke legs 7 and 8 indicated by dashed lines.
  • the space for the yoke legs 7 and 8 in the armature has to be left out, so that only relatively little volume is available for the permanent magnets 3 and 4.
  • the magnet system according to the invention is shown in two views.
  • the coil core 11 carries the winding 12, and a bearing journal 13, on which the armature 14 is mounted, is fastened in a manner not shown.
  • This armature 14 consists of two ferromagnetic legs 15 and 16, the ends 15a, 15b and 16a and 16b of which are each angled toward the coil. They include the pole ends 11a and 11b of the coil core, which also have a small angled extension 11c and 11d to form the largest possible pole faces.
  • FIG. 4 shows a small modification in a detail from FIG. 2.
  • the pole end 11b 'of the coil core is designed as a straight extension of the core without bending.
  • the core is particularly easy to manufacture.
  • the anchor no longer has the familiar H shape, but has a sandwich-like structure.
  • the ends 15a, 15b, 16a and 16b of the leg 5 and 16 are designed in such a way that they reach the pole ends of the coil core in the shortest possible way and enclose them like pliers.
  • FIG. 5 and 6 show a further possible embodiment of the anchor, FIG. 6 showing an end view of the anchor from FIG. 5.
  • the armature 24 consists of two flat sheets 25 and 26, which are now parallel to one another in one plane. At their ends, lateral tabs 25a and 25b or 26a and 26b are bent in the direction of the coil core.
  • the flat permanent magnet 27 is not arranged between the sheets 25 and 26, but on them. It covers the entire surface of the two sheets forming the anchor legs.
  • the permanent magnet is magnetized in the embodiment according to FIGS. 5 and 6 in the transverse direction, that is to say parallel to the armature plane, so that one pole bears against one of the armature legs.
  • FIG. 5 and 6 shows an end view of the anchor from FIG. 5.
  • the permanent magnet 28 lying flat on the armature could have two mutually opposite magnetization directions perpendicular to the armature plane.
  • a flux plate 29 is expediently arranged above the permanent magnet in order to close the permanent magnet circuit and to reduce the leakage flux.
  • FIG. 8 finally shows an armature version for a monostable magnet system.
  • two armature legs 31 and 32 are connected via a ferromagnetic center piece 33 to form a Z-shaped structure which is mounted on a pin 34 in the middle part.
  • a Poi scholar37 or 38 is arranged via a permanent magnet 35 or 36.
  • the ends 31a, 32a or 37a and 38a of the armature legs and the pole pieces are angled in the direction of a core (not shown).
  • Fig. 9 shows this in a view of the anchor from the front in the direction of arrow IX.
  • the permanent magnets 35 and 36 are polarized in series in this case, so that the pole pieces 37 and 38 are always attracted to the core (not shown) in the idle state. Only in this state do the permanent magnetic circuits close. When the magnet system is excited, the armatures 31 and 32 are then attracted to the respective core ends. The monostable switching behavior is thus achieved.

Description

Die Erfindung bezieht sich auf ein polarisiertes Magnetsystem mit einer Spule mit Spulenkern und mit einem langgestreckten, im wesentlichen parallel zur Spulenachse angeordneten und etwa über der Spulenmitte gelagerten, eine Dauermagnetanordnung tragenden Drehanker, welcher an beiden Enden mit gabelförmig angeordneten Schenkelenden jeweils die Polenden des Spulenkerns unter Bildung von Arbeitsluftspalten zangenförmig umfaßt.The invention relates to a polarized magnet system with a coil with a coil core and with an elongated armature, which is arranged essentially parallel to the coil axis and is located approximately above the coil center and carries a permanent magnet arrangement Formation of working air gaps includes pliers.

Derartige Magnetsysteme mit einem sogenannten H-Anker sind seit langem bekannt (DE-C-942 406, DE-C-970 234, DE-B-2 454 967). Bei all diesen bekannten Ankerformen liegen zwei langgestreckte Eisenschenkel parallel und schließen zwischen sich im Lagerbereich oder auch beiderseits der Lagerung einen oder mehrere Dauermagnete so ein, daß ihre jeweiligen Schenkelenden freibleiben. Zwischen diese geraden Schenkelenden greifen dann gewinkelte Jochteile ein.Such magnet systems with a so-called H armature have long been known (DE-C-942 406, DE-C-970 234, DE-B-2 454 967). In all of these known anchor shapes, two elongated iron legs are parallel and enclose one or more permanent magnets between them in the storage area or on both sides of the bearing so that their respective leg ends remain free. Angled yoke parts then engage between these straight leg ends.

Derartige H-Anker können bei gegebener Gesamtlänge der Spule und damit auch des Ankers nur verhältnismäßig kurze Dauermagnete enthalten, während ein wesentlicher Teil des zwischen beiden Ankerschenkein vorhandenen Volumens zur Bildung der Luftspalte freibleiben muß. Wegen des geringen Dauermagnetvolumens müssen hochwertige und damit teuere Magnetmaterialien eingesetzt werden, um eine bestimmte Leistung des Magnetsystems zu erreichen.Such H-anchors can only contain relatively short permanent magnets for a given total length of the coil and thus also the armature, while a substantial part of the volume between the two armatures does not have to remain free to form the air gaps. Because of the small permanent magnet volume, high-quality and therefore expensive magnet materials have to be used in order to achieve a certain performance of the magnet system.

Aufgabe der Erfindung ist es, ein polarisiertes Magnetsystem der eingangs erwähnten Art so zu gestalten, daß das Magnetvolumen bei gegebenen. Gesamtabmessungen möglichst groß sein kann. Damit soll das Magnetsystem hinsichtlich seiner Leistungsfähigkeit bei vorgegebener Größe optimiert werden.The object of the invention is to design a polarized magnet system of the type mentioned in such a way that the magnet volume given. Overall dimensions can be as large as possible. The aim of the magnet system is to optimize its performance with a given size.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Drehankerschenkel an ihren Enden jeweils senkrecht zur Spulenachse in Richtung auf den Spulenkern abgewinkelt sind, wobei die abgewinkelten Schenkelenden jeweils die Arbeitsluftspalte mit dem Spulenkern bilden. Durch diese erfindungsgemäße Gestaltung des Ankers wird es möglich, die Dauermagnetanordnung bis an das Ende des jeweiligen achsparallelen Schenkelstückes des Ankers zu erstrecken. Damit kann also der Dauermagnet oder die Dauermagnetanordnung ebenso lang sein wie der Anker selbst. Mit diesem vergrößerten Dauermagnetvolumen kann bei gleichen Abmessungen der Dauermagnetfluß vergrößert werden. Diese Möglichkeit kann insbesondere bei einer weiteren Miniaturisierung eines derartigen Magnetsystems, etwa für Relais,-eine Rolle spielen. Ein weiterer Vorteil der erfindungsgemäßen Abwinkelung der Ankerenden liegt darin, daß der Arbeitsluftspaht zur Spule hin verlagert wird. Damit kann der Steuerfluß besser ausgenutzt werden, da die Streuflüsse verringert werden.According to the invention, this object is achieved in that the ends of the rotating armature are angled at their ends perpendicular to the coil axis in the direction of the coil core, the angled leg ends each forming the working air gap with the coil core. This inventive design of the armature makes it possible to extend the permanent magnet arrangement to the end of the respective axially parallel leg piece of the armature. Thus, the permanent magnet or the permanent magnet arrangement can be as long as the armature itself. With this increased permanent magnet volume, the permanent magnet flux can be increased with the same dimensions. This possibility can play a role in particular in the case of further miniaturization of such a magnet system, for example for relays. Another advantage of the angling of the armature ends according to the invention is that the working air spah is shifted towards the coil. In this way, the control flow can be better utilized since the leakage flows are reduced.

Wegen der erfindungsgemäßen Abwinkelung der Ankerenden braucht der Kern nicht mehr wie bei einem H-Ankersystem mit langen Jochschenkeln versehen zu sein. Es genügt beispielsweise, wenn der Spulenkern gerade ausgebildet ist und lediglich an beiden Stirnenden der Spule axial vorstehende Polenden besitzt. Zur Vergrößerung der Polflächen können aber kurze Winkelstücke in Richtung auf den Anker angeformt sein. Der Drehanker besteht in einer zweckmäßigen Ausführungsform aus zwei parallel angeordneten, U-Förmigen Blechen, zwischen denen die Dauermagnetanordnung beiderseits der Lagerung zueinander parallel mit gleichgerichteter Polarisierung angeordnet ist. In einer anderen zweckmäßigen Ausführungsform besitzt der Drehanker zwei in einer Ebene parallel zur Spulenachse liegende Bleche, an deren Enden jeweils Lappen parallel zu den Polflächen des Spulenkerns abgebogen sind, wobei auf den Blechen eine flache, beide Bleche überdeckende Dauermagnetanordnung angebracht ist. Diese Dauermagnetanordnung kann beispielsweise parallel zur Ebene der Bleche polarisiert sein. In diesem Fall ist der Dauermagnetkreis unmittelbar über die beiden Bleche geschlossen. Die Dauermagnetanordnung kann aber auch senkrecht zur Ebene der Bleche einander entgegengesetzte Polarisierungsrichtungen aufweisen. In diesem Fall ist es zweckmäßig, über der Dauermagnetanordnung noch ein Flußleitblech anzubringen.Because of the angling of the anchor ends according to the invention, the core no longer needs to be provided with long yoke legs as in the case of an H anchor system. It is sufficient, for example, if the coil core is straight and only has axially projecting pole ends on both ends of the coil. To enlarge the pole faces, short elbows can be formed in the direction of the armature. In an expedient embodiment, the rotary anchor consists of two parallel, U-shaped sheets, between which the permanent magnet arrangement is arranged parallel to one another on both sides of the bearing with polarization of the same direction. In another expedient embodiment, the rotary armature has two sheets lying in one plane parallel to the coil axis, at the ends of which tabs are bent parallel to the pole faces of the coil core, a flat permanent magnet arrangement covering both sheets being attached to the sheets. This permanent magnet arrangement can, for example, be polarized parallel to the plane of the sheets. In this case, the permanent magnetic circuit is closed directly via the two sheets. The permanent magnet arrangement can also have mutually opposite polarization directions perpendicular to the plane of the sheets. In this case, it is advisable to attach a flux guide plate over the permanent magnet arrangement.

Zur Schaffung eines monostabilen Magnetsystems kann der Anker weiterhin aus zwei mit einem ferromagnetischen Mittelstück Z-förmig angeordneten Ankerschenkeln sowie zwei über je einen Dauermagneten mit den Ankerschenkeln gekoppelten Polstücken bestehen, wobei die beiden Dauermagnete über das Ferromagnetische Mittelstück in Serie liegen.To create a monostable magnet system, the armature can furthermore consist of two armature legs arranged with a Z-shaped ferromagnetic center piece and two pole pieces coupled to the armature legs via a permanent magnet, the two permanent magnets being in series via the ferromagnetic center piece.

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

  • Figur 1 einen H-Anker nach dem Stand der Technik,
  • Figuren 2 und 3 ein erfindungsgemäßes Magnetsystem in zwei Ansichten,
  • Figur4 ein Detail aus Fig.3 in etwas abgewandelter Form,
  • Figuren 5 bis 7 weitere Ausführungsmöglichkeiten eines bistabilen Magnetsystems bzw. des zugehörigen Ankers,
  • Figuren 8 und 9 einen Anker für ein monostabiles Magnetsystem.
The invention is explained in more detail below using exemplary embodiments with reference to the drawing. It shows
  • FIG. 1 shows an H anchor according to the prior art,
  • FIGS. 2 and 3 an inventive magnet system in two views,
  • FIG. 4 shows a detail from FIG. 3 in a somewhat modified form,
  • FIGS. 5 to 7 further design options for a bistable magnet system or the associated armature,
  • Figures 8 and 9 an anchor for a monostable magnet system.

Die Fig. 1 zeigt im Schnitt einen herkömmlichen H-Anker, wie er bei Magnetsystemen nach dem Stand der Technik verwendet wurde. Er besteht im wesentlichen aus zwei ferromagnetischen Stegen 1 und 2, welche parallel zueinander angeordnet sind und zwischen sich zwei Dauermagnete3 und 4 einschließen. Der Mittelteil 5 besteht aus nichtferromagnetischem Material, beispielsweise Kunststoff, und enthält eine Lagerbuchse 6. Der Drehanker ist mit dieser Lagerbuchse auf einer nicht dargestellten Spule so gelagert, daß die Schenkelenden 1a, 2a und 1b, 2b jeweils Arbeitsluftspalte mit den gestrichelt angedeuteten Jochschenkeln 7 und 8 bilden. Bei diesen herkömmlichen H-Ankern muß der Platz für die Jochschenkel 7 und 8 im Anker ausgespart werden, so daß für die Dauermagnete 3 und 4 nur relativ wenig Volumen zur Verfügung steht.Fig. 1 shows in section a conventional H-armature, as it was used in magnetic systems according to the prior art. It essentially consists of two ferromagnetic webs 1 and 2, which are arranged parallel to one another and enclose two permanent magnets 3 and 4 between them. The middle part 5 consists of non-ferromagnetic material, for example plastic, and contains a La gerbuchse 6. The rotary anchor is mounted with this bearing bush on a coil, not shown, that the leg ends 1a, 2a and 1b, 2b each form working air gaps with the yoke legs 7 and 8 indicated by dashed lines. In these conventional H-type anchors, the space for the yoke legs 7 and 8 in the armature has to be left out, so that only relatively little volume is available for the permanent magnets 3 and 4.

In den Fig. 2 und 3 ist demgegenüber das erfindungsgemäße Magnetsystem in zwei Ansichten dargestellt. Der Spulenkern 11 trägt die Wicklung 12, und darüber ist auf nicht näher dargestellte Weise ein Lagerzapfen 13 befestigt, auf welchem der Anker 14 gelagert ist. Dieser Anker 14 besteht aus zwei ferromagnetischen Schenkeln 15 und 16, deren Enden 15a, 15b bzw. 16a und 16b jeweils zur Spule hin abgewinkelt sind. Sie umfassen dabei die Polenden 11a und 11b des Spulenkerns, welche zur Bildung von möglichst großen Polflächen ebenfalls einen kleinen abgewinkelten Ansatz 11c bzw. 11d besitzen. In Fig. 4 ist in einem Detailausschnitt aus Fig. 2 eine kleine Abwandlung gezeigt. Hierbei ist beispielsweise das Polende 11b' des Spulenkerns ohne Abwinkelung als gerade Verlängerung des Kerns ausgebildet. In diesem Fall ist der Kern besonders einfach herzustellen.2 and 3, in contrast, the magnet system according to the invention is shown in two views. The coil core 11 carries the winding 12, and a bearing journal 13, on which the armature 14 is mounted, is fastened in a manner not shown. This armature 14 consists of two ferromagnetic legs 15 and 16, the ends 15a, 15b and 16a and 16b of which are each angled toward the coil. They include the pole ends 11a and 11b of the coil core, which also have a small angled extension 11c and 11d to form the largest possible pole faces. FIG. 4 shows a small modification in a detail from FIG. 2. In this case, for example, the pole end 11b 'of the coil core is designed as a straight extension of the core without bending. In this case, the core is particularly easy to manufacture.

Zwischen den beiden Schenkeln 15 und 16 sind zwei Dauermagnete 17 und 18 angeordnet, welche mit Ausnahme des die Lagerung bildenden Mittelstücks 19 die gesamte Länge des Ankers einnehmen. Der Anker hat damit nicht mehr die bekannte H-Form, sondern besitzt einen sandwichähnlichen Aufbau. Die Enden 15a, 15b, 16a und 16b der Schenkell5 bzw. 16 sind so gestaltet, daß sie auf möglichst kurzem Wege die Polenden des Spulenkerns erreichen und diese zangenförmig umschließen.Between the two legs 15 and 16, two permanent magnets 17 and 18 are arranged which, with the exception of the center piece 19 forming the bearing, occupy the entire length of the armature. The anchor no longer has the familiar H shape, but has a sandwich-like structure. The ends 15a, 15b, 16a and 16b of the leg 5 and 16 are designed in such a way that they reach the pole ends of the coil core in the shortest possible way and enclose them like pliers.

Eine weitere Ausführungsmöglichkeit für den Anker zeigen die Fig. 5 und 6, wobei in der Fig. 6 eine stirnseitige Ansicht des Ankers aus Fig. 5 dargestellt ist. In diesem Fall besteht der Anker 24 aus zwei flachen Blechen 25 und 26, die nunmehr parallel zueinander in einer Ebene liegen. An ihren Enden sind seitliche Lappen 25a und 25b bzw. 26a und 26b in Richtung auf den Spulenkern abgebogen. Der flache Dauermagnet 27 ist in diesem Fall nicht zwischen den Blechen 25 und 26, sondern auf ihnen angeordnet. Er bedeckt die gesamte Oberfläche der beiden die Ankerschenkel bildenden Bleche. Der Dauermagnet ist in der Ausführung nach Fig. 5 und 6 in Querrichtung, also parallel zur Ankerebene, magnetisiert, so daß je ein Pol an einem der Ankerschenkel anliegt. In einer weiteren Abwandlung nach Fig. 7 könnte der auf dem Anker flach aufliegende Dauermagnet 28 zwei einander entgegengesetzte, zur Ankerebene senkrechte Magnetisierungsrichtungen besitzen. In diesem Fall wird zweckmäßigerweise über dem Dauermagneten noch eine Flußplatte 29 angeordnet, um den Dauermagnetkreis zu schließen und den Streufluß zu verringern.5 and 6 show a further possible embodiment of the anchor, FIG. 6 showing an end view of the anchor from FIG. 5. In this case, the armature 24 consists of two flat sheets 25 and 26, which are now parallel to one another in one plane. At their ends, lateral tabs 25a and 25b or 26a and 26b are bent in the direction of the coil core. In this case, the flat permanent magnet 27 is not arranged between the sheets 25 and 26, but on them. It covers the entire surface of the two sheets forming the anchor legs. The permanent magnet is magnetized in the embodiment according to FIGS. 5 and 6 in the transverse direction, that is to say parallel to the armature plane, so that one pole bears against one of the armature legs. In a further modification according to FIG. 7, the permanent magnet 28 lying flat on the armature could have two mutually opposite magnetization directions perpendicular to the armature plane. In this case, a flux plate 29 is expediently arranged above the permanent magnet in order to close the permanent magnet circuit and to reduce the leakage flux.

Die Fig.8 zeigt schließlich noch eine Ankerausführung für ein monostabiles Magnetsystem. In diesem Fall sind zwei Ankerschenkel 31 und 32 über ein ferromagnetisches Mittelstück 33 zu einem Z-förmigen Gebilde verbunden, welches im Mittelteil auf einem Zapfen 34 gelagert ist. An jedem der Ankerschenkel ist über einen Dauermagneten 35 bzw. 36 ein Poistück37 bzw. 38 angeordnet. Auch in diesem Fall sind die Enden 31a, 32a bzw. 37a und 38a der Ankerschenkel und der Polstücke in Richtung auf einen nicht dargestellten Kern abgewinkelt. Fig. 9 zeigt dies in einer Ansicht des Ankers von der Stirnseite in Pfeilrichtung IX. Die Dauermagnete 35 und 36 sind in diesem Fall in Serie polarisiert, so daß im Ruhezustand immer die Polstücke 37 und 38 an den nichtdargestellten Kern angezogen werden. Nur in diesem Zustand schließen sich nämlich die Dauermagnetkreise. Bei Erregung des Magnetsystems werden dann die Ankerschenkei 31 und 32 an die jeweiligen Kernenden angezogen. Damit wird das monostabile Schaltverhalten erreicht.8 finally shows an armature version for a monostable magnet system. In this case, two armature legs 31 and 32 are connected via a ferromagnetic center piece 33 to form a Z-shaped structure which is mounted on a pin 34 in the middle part. On each of the armature legs a Poistück37 or 38 is arranged via a permanent magnet 35 or 36. In this case too, the ends 31a, 32a or 37a and 38a of the armature legs and the pole pieces are angled in the direction of a core (not shown). Fig. 9 shows this in a view of the anchor from the front in the direction of arrow IX. The permanent magnets 35 and 36 are polarized in series in this case, so that the pole pieces 37 and 38 are always attracted to the core (not shown) in the idle state. Only in this state do the permanent magnetic circuits close. When the magnet system is excited, the armatures 31 and 32 are then attracted to the respective core ends. The monostable switching behavior is thus achieved.

Claims (7)

1. Polarized magnet system having a coil (12) with a core (11) and an elongate rotary armature which is arranged substantially parallel to the axis of the coil, is mounted approximately above the centre of the coil and supports a permanent magnet arrangement (17, 18 ; 27 ; 28 ; 35, 36), and which at each end, embraces the respective pole end of the core (11) by means of forked arm ends in the manner of a pair of tongs, forming working air gaps, characterised in that at their ends (15a, 16a, 15b, 16b ; 25a, 25b, 26a, 26b ; 31 a, 32a), the arms (15, 16; 25, 26 ; 31, 32) of the rotary armature are respectively angled at right angles to the axis of the coil In the direction towards the core (11), the angled ends of the arms respectively forming the working air gaps with the coil core (11); and that the permanent magnet arrangement (17, 18 ; 27 ; 28, 35, 36) extends to the free ends of the arms of the rotary armature (15, 16 ; 25, 26 ; 31, 32).
2. A magnet system as claimed in claim 1, characterised in that the rotary armature (14) consists of two U-shaped sheets (15, 16) which are arranged parallel to one another and between which the permanent magnet arrangement (17, 18) is arranged in parallel on either side of the bearing (13).
3. A magnet system as claimed in claim 1 or claim 2, characterised in that the core (11) has straight pole ends (11b').
4. A magnet system as claimed in claim 1 or claim 3, characterised in that the rotary armature (24) possesses two sheets (25, 26) which are arranged In a plane parallel to the coil axis and at the ends of which, respective tabs (25a, 25b, 26a, 26b) are bent upwardly parallel to the pole faces of the core (11), a flat permanent magnet arrangement (27 ; 28) which covers both sheets being arranged on the sheets.
5. A magnet system as claimed in claim 4, characterised In that the permanent magnet arrangement (27) Is polarized parallel to the plane of the sheets (25, 26).
6. A magnet system as claimed in claim 5, characterised in that the permanent magnet arrangement (28) has directions of magnetisation which are opposite to one another and are at right angles to the plane of the sheets (25, 26), and is covered with a flux-conducting sheet (29).
7. A magnet system as claimed in claim 1 or claim 3, characterised in that the rotary armature has arms (31, 32) which are arranged in the form of a Z by way of a ferromagnetic centre piece (33), and which are respectively coupled to a pole piece (37, 38) by way of a permanent magnet (35, 36), the two permanent magnets (35, 36) being arranged in series through the ferromagnetic centre piece (33).
EP81101189A 1980-02-25 1981-02-19 Polarized magnet system Expired EP0034811B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3006948 1980-02-25
DE19803006948 DE3006948A1 (en) 1980-02-25 1980-02-25 POLARIZED MAGNETIC SYSTEM

Publications (2)

Publication Number Publication Date
EP0034811A1 EP0034811A1 (en) 1981-09-02
EP0034811B1 true EP0034811B1 (en) 1983-10-05

Family

ID=6095462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101189A Expired EP0034811B1 (en) 1980-02-25 1981-02-19 Polarized magnet system

Country Status (6)

Country Link
US (1) US4325043A (en)
EP (1) EP0034811B1 (en)
JP (1) JPS56133804A (en)
BR (1) BR8101127A (en)
DE (1) DE3006948A1 (en)
PT (1) PT72557B (en)

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Publication number Priority date Publication date Assignee Title
DE3132244C2 (en) * 1981-08-14 1983-05-19 Siemens AG, 1000 Berlin und 8000 München Polarized electromagnetic relay
DE3140226A1 (en) * 1981-10-09 1983-04-28 Siemens AG, 1000 Berlin und 8000 München POLARIZED ELECTROMAGNETIC RELAY
DE3223867C2 (en) * 1982-06-25 1986-04-24 Siemens AG, 1000 Berlin und 8000 München Polarized relay
JPS60180466A (en) * 1984-02-24 1985-09-14 Nippon Denso Co Ltd Rotary drive device
DE3476604D1 (en) * 1984-12-05 1989-03-09 Sauer Hans Relay for high-frequency circuits
US4613840A (en) * 1984-12-14 1986-09-23 Matsushita Electric Works, Ltd. Relay for high-frequency circuits
US4843360A (en) * 1987-02-05 1989-06-27 Takamisawa Electric Co., Ltd. Polarized electromagnetic relay
US4922217A (en) * 1988-06-17 1990-05-01 Hsc Controls, Inc. Torque motor with magnet armature
DE4208164A1 (en) * 1992-03-13 1993-09-16 Siemens Ag POLARIZED ELECTROMAGNETIC RELAY
US6025766A (en) * 1997-04-11 2000-02-15 Siemens Energy & Automation, Inc. Trip mechanism for an overload relay
US6949997B2 (en) * 2003-09-26 2005-09-27 Rockwell Automation Technologies, Inc. Bi-stable trip-free relay configuration
US7161104B2 (en) 2003-09-26 2007-01-09 Rockwell Automation Technologies, Inc. Trip-free PCB mountable relay configuration and method
JP4424260B2 (en) * 2005-06-07 2010-03-03 オムロン株式会社 Electromagnetic relay
CN109786664B (en) * 2019-02-01 2021-06-25 上海兰钧新能源科技有限公司 Battery pole piece support

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DE966845C (en) * 1952-03-22 1957-09-12 Siemens Ag Electromagnetic polarized drive system, especially for relays, alarm clocks or the like.
BE541185A (en) * 1954-09-09
US3017474A (en) * 1960-02-09 1962-01-16 Mallory & Co Inc P R Miniature relay
US3315195A (en) * 1964-11-02 1967-04-18 Allied Control Co Electromagnetic switching relay with permanent magnetic latch means
DE2365190B2 (en) * 1973-12-29 1978-10-26 Elmeg-Elektro-Mechanik Gmbh, 3150 Peine Electromagnet system
DE2407184C2 (en) * 1974-02-15 1982-09-02 Schaltbau GmbH, 8000 München Electromagnetic relay with two armatures
DE2454967C3 (en) * 1974-05-15 1981-12-24 Hans 8024 Deisenhofen Sauer Poled electromagnetic relay
DE2816555A1 (en) * 1977-04-18 1978-10-19 Francaise App Elect Mesure MAGNETIC CIRCUIT FOR AN ELECTROMAGNET FOR ONE WITH A PERMANENT MAGNET AS ANCHOR
JPS6022805B2 (en) * 1977-08-23 1985-06-04 オリンパス光学工業株式会社 Electromagnetic device for releasing restraint
DE2750142C2 (en) * 1977-11-09 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Monostable electromagnetic rotating armature relay
JPS5615522A (en) * 1979-07-18 1981-02-14 Matsushita Electric Works Ltd Electromagnetic relay

Also Published As

Publication number Publication date
DE3006948A1 (en) 1981-09-10
DE3006948C2 (en) 1988-09-15
BR8101127A (en) 1981-09-01
EP0034811A1 (en) 1981-09-02
JPS56133804A (en) 1981-10-20
JPS6226561B2 (en) 1987-06-09
PT72557A (en) 1981-03-01
PT72557B (en) 1982-03-16
US4325043A (en) 1982-04-13

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