EP0034811A1 - Polarized magnet system - Google Patents

Polarized magnet system Download PDF

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Publication number
EP0034811A1
EP0034811A1 EP81101189A EP81101189A EP0034811A1 EP 0034811 A1 EP0034811 A1 EP 0034811A1 EP 81101189 A EP81101189 A EP 81101189A EP 81101189 A EP81101189 A EP 81101189A EP 0034811 A1 EP0034811 A1 EP 0034811A1
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EP
European Patent Office
Prior art keywords
armature
coil
permanent magnet
magnet system
parallel
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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.)
Granted
Application number
EP81101189A
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German (de)
French (fr)
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EP0034811B1 (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 an iron 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-armatures 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 armature legs must 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 at the outset in such a way that the magnet volume is possible for given overall dimensions can be as big as possible.
  • the aim of the magnet system is to optimize its performance with a given size.
  • this object is achieved in that the armature legs are angled at their ends perpendicular to the coil axis in the direction of the coil core, the angled leg pieces each forming the working air gap with the 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 a further miniaturization of such a magnet system, for example for relays.
  • Another advantage of the anchoring of the armature ends according to the invention is that the working air gap 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 armature consists of two parallel, U-shaped sheets, between which the permanent magnet arrangement is arranged on both sides of the bearing with the polarization aligned in the same direction.
  • the anchor has two in one plane Sheets lying parallel to the coil axis, at the ends of which tabs are bent parallel to the pole faces of the 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 sheet metal plane. 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 sheet metal plane. In this case, it is advisable to attach a flux guide plate over the permanent magnet arrangement.
  • the armature can also 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.
  • 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 include two permanent magnets 3 and 4 between them.
  • the middle part-5 consists of non-ferromagnetic material, for example plastic, and contains a bearing bush 6.
  • the rotary armature is with this Bearing bush mounted on a spool, not shown, so 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 a relatively small volume is available for the permanent magnets 3 and 4.
  • the winder core 11 carries the winding 12, and above it a bearing journal 13 is fastened in a manner not shown, on which the armature 14 is mounted.
  • 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. In this case, 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 armature legs 15 and 16 are designed so that they reach the pole ends of the coil core in the shortest possible way and enclose them in the form of pliers.
  • FIGS. 5 and 6 Another possible embodiment for the anchor is shown in FIGS. 5 and 6, with an end face being shown in FIG. View of the anchor from Fig. 5 is shown.
  • the armature 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 armature legs 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.
  • 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 the To reduce 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 pole piece 37 or 38 is arranged on each of the armature legs 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).
  • 9 shows this in a view of the armature from the front side.
  • 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.
  • the armature legs 31 and 32 are then attracted to the respective core ends. The monostable switching behavior is thus achieved.

Abstract

Das polarisierte Magnetsystem für ein Relais besitzt einen Drehanker, welcher an jedem seiner beiden Enden ein Polende (11a, 11b) des Spulenkerns (11) zangenförmig umfaßt und jeweils mit diesem Arbeitsluftspalte bildet. Die ferromagnetischen Schenkel des Ankers, welche eine Dauermagnetanordnung (17, 18) zwischen sich einschließen, sind an den Enden zum Spulenkern hin abgewinkelt. Dadurch werden die Arbeitsluftspalte zur Spule hin verlagert, und die Dauermagnete (17, 18) können über die gesamte Ankerlänge zwischen den Ankerschenkeln liegen.The polarized magnet system for a relay has a rotary armature which, at each of its two ends, comprises a pole end (11a, 11b) of the coil core (11) in the form of pliers and forms a working air gap with this. The ferromagnetic legs of the armature, which enclose a permanent magnet arrangement (17, 18) between them, are angled at the ends towards the coil core. As a result, the working air gaps are shifted towards the coil, and the permanent magnets (17, 18) can lie between the armature legs over the entire armature length.

Description

Die Erfindung bezieht sich auf ein polarisiertes Magnetsystem mit einer Spule mit Eisenkern 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 Enden des Spulenkerns unter Bildung von Arbeitsluftspalten zangenförmig umfaßt.The invention relates to a polarized magnet system with a coil with an iron 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-PS 942 406, DE-PS 970 234, DE-AS 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-PS 942 406, DE-PS 970 234, DE-AS 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 Dauermagneten enthalten, während ein wesentlicher Teil des zwischen beiden Ankerschenkeln 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-armatures 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 armature legs must 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 at the outset in such a way that the magnet volume is possible for given overall dimensions can be as big 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 Ankerschenkel an ihren Enden jeweils senkrecht zur Spulenachse in Richtung auf den Spulenkern abgewinkelt sind, wobei die abgewinkelten Schenkelstücke jeweils die Arbeitsluftspalte mit dem Kern 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 Arbeitsluftspalt 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 armature legs are angled at their ends perpendicular to the coil axis in the direction of the coil core, the angled leg pieces each forming the working air gap with the 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 a further miniaturization of such a magnet system, for example for relays. Another advantage of the anchoring of the armature ends according to the invention is that the working air gap 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 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 Anker besteht in einer, zweckmäßigen Ausführungsform aus zwei parallel angeordneten, U-förmigen Blechen, zwischen denen die Dauermagnetanordnung beiderseits der Lagerung mit gleichgerichteter Polarisierung angeordnet ist. In einer anderen zweckmäßigen Ausführungsform besitzt der Anker zwei in einer Ebene parallel zur Spulenachse-liegende Bleche, an deren Enden jeweils Lappen parallel zu den Polflächen des Kerns abgebogen sind, wobei auf den Blechen eine flache, beide Bleche überdeckende Dauermagnetanordnung angebracht ist. Diese Dauermagnetanordnung kann beispielsweise parallel zur Blechebene polarisiert sein. In diesem Fall ist der Dauermagnetkreis unmittelbar über die beiden Bleche geschlossen. Die Dauermagnetanordnung kann aber auch senkrecht zur Blechebene einander entgegengesetzte Polarisierungsrichtungen aufweisen. In diesem Fall ist es zweckmäßig, über der Dauermagnetanordnung noch ein Flußführungsblech 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 armature consists of two parallel, U-shaped sheets, between which the permanent magnet arrangement is arranged on both sides of the bearing with the polarization aligned in the same direction. In another expedient embodiment, the anchor has two in one plane Sheets lying parallel to the coil axis, at the ends of which tabs are bent parallel to the pole faces of the 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 sheet metal plane. In this case, the permanent magnetic circuit is closed directly via the two sheets. However, the permanent magnet arrangement can also have mutually opposite polarization directions perpendicular to the sheet metal plane. 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.To create a monostable magnet system, the armature can also 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.

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

  • Fig. 1 einen H-Anker nach dem Stand der Technik,
  • Fig. 2 und 3 ein erfindungsgemäßes Magnetsystem in zwei Ansichten,
  • Fig. 4 ein Detail aus Fig. 3 in etwa abgewandelter Form,
  • Fig. 5 bis 7 weitere Ausführungsmöglichkeiten eines bistabilen Magnetsystems bzw. des zugehörigen Ankers,
  • Fig. 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
  • 1 shows an H anchor according to the prior art,
  • 2 and 3 an inventive magnet system in two views,
  • 4 shows a detail from FIG. 3 in an approximately modified form,
  • 5 to 7 further possible embodiments of a bistable magnet system or the associated armature,
  • 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 Dauermagnete 3 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 include two permanent magnets 3 and 4 between them. The middle part-5 consists of non-ferromagnetic material, for example plastic, and contains a bearing bush 6. The rotary armature is with this Bearing bush mounted on a spool, not shown, so 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 a relatively small 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 Spulerikern 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 winder core 11 carries the winding 12, and above it a bearing journal 13 is fastened in a manner not shown, on which the armature 14 is mounted. 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 Ankerschenkeln 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 Ankerschenkel 15 bzw. 16 sind so gestaltet, daß sie auf möglichst kurzem Wege die Polenden des Spulenkerns erreichen und diese zangenförmig umschließen.Between the two armature 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 armature legs 15 and 16 are designed so that they reach the pole ends of the coil core in the shortest possible way and enclose them in the form of 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 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 Ankerschenkeln 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.Another possible embodiment for the anchor is shown in FIGS. 5 and 6, with an end face being shown in FIG. View of the anchor from Fig. 5 is shown. In this case, the armature 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 armature legs 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 the To reduce 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 Mittel- - teil auf einem Zapfen 34 gelagert ist. An jedem der Ankerschenkel ist über einen Dauermagneten 35 bzw. 36 ein Polstück 37 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. 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 Ankerschenkel 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. A pole piece 37 or 38 is arranged on each of the armature legs 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). 9 shows this in a view of the armature from the front side. 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 armature legs 31 and 32 are then attracted to the respective core ends. The monostable switching behavior is thus achieved.

Claims (7)

1. Polarisiertes Magnetsystem mit einer Spule mit Kern und mit einem langgestreckten, im wesentlichen parallel zur Spulenachse angeordneten und etwa über der Spulenmitte ge- lagerten, eine Dauermagnetanordnung tragenden Drehanker, welcher an beiden Enden mit gabelförmig angeordneten Schenkelenden jeweils die Polenden des Spulenkerns unter Bildung von Arbeitsluftspalten zangenförmig umfaßt, dadurch gekennzeichnet , daß die An- kerschenkel (15, 16; 25, 26; 31, 32) an ihren Enden (15a, 16a; 15b, 16b; 25a, 25b; 26a, 26b; 31a, 32a) jeweils etwa senkrecht zur Spulenachse in Richtung auf den Spulenkern abgewinkelt sind, wobei die abgewinkelten Schenkelenden jeweils die Luftspalte mit dem Spulenkern bilden, und daß die Dauermagnetanordnung (17, 18, 27, 28, 35, 36) sich jeweils bis an das freie Ende der Ankerschenkel (15, 16, 25, 26, 31, 32) erstreckt. 1st Polarized magnet system having a coil with a core and with an elongated, arranged substantially parallel to the coil axis and about agerten overall l above the coil center, a permanent magnet assembly supporting rotary armature, which at both ends with a fork-shaped arrangement of the leg ends in each case the pole ends of the coil core to form working air gaps pincer-like comprises, characterized in that the check k erschenkel (15, 16; 25, 26; 31, 32) at their ends (15a, 16a; 15b, 16b; 25a, 25b; 26a, 26b; 31a, 32a) are angled approximately perpendicular to the coil axis in the direction of the coil core, the angled leg ends each forming the air gaps with the coil core, and that the permanent magnet arrangement (17, 18, 27, 28, 35, 36) each extend to the free end of the Anchor leg (15, 16, 25, 26, 31, 32) extends. 2. Magnetsystem nach Anspruch 1, dadurch gekennzeichnet , daß der Anker (14) aus zwei parallel angeordneten, U-förmigen Blechen (15, 16) besteht, zwischen denen die Dauermagnetanordnung (17, 18) beiderseits der Lagerung (13) zueinander parallel angeordnet ist. 2nd Magnet system according to claim 1, characterized in that the armature (14) consists of two parallel, U-shaped plates (15, 16), between which the permanent magnet arrangement (17, 18) is arranged parallel to each other on both sides of the bearing (13). 3. Magnetsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet , daß der Spulenkern (11) gerade ausgebildete Polenden (11b') besitzt. 3rd Magnet system according to claim 1 or 2, characterized in that the coil core (11) has straight pole ends (11b '). 4. Magnetsystem nach Anspruch 1 oder 3, dadurch gekennzeichnet , daß der Anker (24) zwei in einer Ebene parallel zur Spulenachse liegende Bleche (25, 26) besitzt, an'deren Enden jeweils Lappen (25a, 25b, 26a, 26b) parallel zu den Polflächen des Spulenkerns (11) abgebogen sind, wobei auf den Blechen eine flache, beide Bleche überdeckende Dauermagnetanordntmg (27, 28) angeordnet ist.4. Magnet system according to claim 1 or 3, characterized in that the armature (24) has two sheets ( 25 , 26) lying in a plane parallel to the coil axis, at the other ends of which tabs (25a, 25b, 26a, 26b) are parallel are bent toward the pole faces of the coil core (11), a flat permanent magnet arrangement (27, 28) covering both sheets being arranged on the sheets. 5. Magnetsystem nach Anspruch 4, dadurch gekennzeichnet , daß die Dauermagnetanordnung (27) parallel zur Ankerebene polarisiert ist.5. Magnet system according to claim 4, characterized in that the permanent magnet arrangement (27) is polarized parallel to the armature plane. 6. Magnetsystem nach Anspruch 5, dadurch gekennzeichnet , daß die Dauermagnetanordnung (28) einander entgegengesetzte, zur Ankerebene senkrechte Magnetisierungsrichtungen aufweist und mit einem Flußleitblech (29) bedeckt ist.6. Magnet system according to claim 5, characterized in that the permanent magnet arrangement (28) has mutually opposite, perpendicular to the armature plane magnetization directions and is covered with a flux guide plate (29). 7. Magnetsystem nach Anspruch 1 oder 3, dadurch gekennzeichnet , daß der Anker (2) über ein ferromagnetisches Mittelstück (33) Z-förmig angeordnete Ankerschenkel (31, 32) besitzt, welche jeweils über einen Dauermagneten (35, 36) mit einem Polstück (37, 38) gekoppelt sind, wobei die beiden Dauermagneten (35, 36) über das ferromagnetische Mittelstück (33) in Serie liegen.7. Magnet system according to claim 1 or 3, characterized in that the armature (2) via a ferromagnetic central piece (33) has a Z-shaped armature leg (31, 32), each of which has a permanent magnet (35, 36) with a pole piece (37, 38) are coupled, the two permanent magnets (35, 36) being in series via the ferromagnetic center 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
DE19803006948 DE3006948A1 (en) 1980-02-25 1980-02-25 POLARIZED MAGNETIC SYSTEM
DE3006948 1980-02-25

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

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ID=6095462

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

Cited By (6)

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Publication number Priority date Publication date Assignee Title
EP0072976A1 (en) * 1981-08-14 1983-03-02 Siemens Aktiengesellschaft Polarised electromagnetic relay
EP0183867A1 (en) * 1984-12-05 1986-06-11 Sauer, Hans Relay for high-frequency circuits
US4613840A (en) * 1984-12-14 1986-09-23 Matsushita Electric Works, Ltd. Relay for high-frequency circuits
EP0277833A2 (en) * 1987-02-05 1988-08-10 Takamisawa Electric Co., Ltd. Polarized electromagnetic relay
WO1993018534A1 (en) * 1992-03-13 1993-09-16 Siemens Aktiengesellschaft Polarized electromagnetic relay
CN109786664A (en) * 2019-02-01 2019-05-21 江苏烨晨智能科技有限公司 A kind of battery pole piece bracket

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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
US4922217A (en) * 1988-06-17 1990-05-01 Hsc Controls, Inc. Torque motor with magnet armature
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

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EP0001802A1 (en) * 1977-11-09 1979-05-16 Siemens Aktiengesellschaft Monostable elctromagnetic rotary armature relay
EP0022953A1 (en) * 1979-07-18 1981-01-28 Hans Sauer Electromagnetic relay

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072976A1 (en) * 1981-08-14 1983-03-02 Siemens Aktiengesellschaft Polarised electromagnetic relay
EP0183867A1 (en) * 1984-12-05 1986-06-11 Sauer, Hans Relay for high-frequency circuits
US4613840A (en) * 1984-12-14 1986-09-23 Matsushita Electric Works, Ltd. Relay for high-frequency circuits
EP0277833A2 (en) * 1987-02-05 1988-08-10 Takamisawa Electric Co., Ltd. Polarized electromagnetic relay
EP0277833A3 (en) * 1987-02-05 1990-05-02 Takamisawa Electric Co., Ltd. Polarized electromagnetic relay
WO1993018534A1 (en) * 1992-03-13 1993-09-16 Siemens Aktiengesellschaft Polarized electromagnetic relay
CN109786664A (en) * 2019-02-01 2019-05-21 江苏烨晨智能科技有限公司 A kind of battery pole piece bracket
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

Also Published As

Publication number Publication date
PT72557A (en) 1981-03-01
EP0034811B1 (en) 1983-10-05
JPS56133804A (en) 1981-10-20
DE3006948C2 (en) 1988-09-15
PT72557B (en) 1982-03-16
BR8101127A (en) 1981-09-01
DE3006948A1 (en) 1981-09-10
US4325043A (en) 1982-04-13
JPS6226561B2 (en) 1987-06-09

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