EP0136592A1 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
EP0136592A1
EP0136592A1 EP84110632A EP84110632A EP0136592A1 EP 0136592 A1 EP0136592 A1 EP 0136592A1 EP 84110632 A EP84110632 A EP 84110632A EP 84110632 A EP84110632 A EP 84110632A EP 0136592 A1 EP0136592 A1 EP 0136592A1
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EP
European Patent Office
Prior art keywords
leg
yoke
leaf spring
armature
spring
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Granted
Application number
EP84110632A
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German (de)
French (fr)
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EP0136592B1 (en
Inventor
Michael Dipl.-Ing. Dittmann
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H01H50/28—Parts movable due to bending of a blade spring or reed

Definitions

  • the innovation relates to an electromagnetic relay with a coil containing a coil core, an angular yoke, the first leg of which is coupled to a pole end of the coil core and the second leg extends parallel to the coil axis, with a plate-shaped, mounted at the free end of the second yoke leg and with the other pole end of the coil core forming an armature working gap and with an angled, serving as armature return and contact spring leaf spring, the first leg is held on the yoke and extends at least partially parallel to the second yoke leg and the second leg partially lying on the armature connected to it is.
  • Such a relay is already known from DE-GM 82 35 283.
  • the first spring leg of the leaf spring is welded flat to a yoke leg, so that it lies essentially in a plane running through the armature axis of rotation and also exerts a prestress on the armature in its longitudinal direction.
  • the anchor tied up by the second spring leg cannot roll freely on its bearing point, but undesirable friction occurs in the bearing.
  • the spring rate is relatively steep due to the preload exerted on the armature by both spring legs.
  • the object of the innovation is to design a relay of the type mentioned that undesirable in the anchor bearing te friction can be avoided and that the spring rate acting on the armature increases only slightly.
  • this object is achieved in that the two legs of the leaf spring form an approximately right angle to one another at a break point located at a distance from the axis of rotation of the armature, and in that the first spring leg can be pivoted about its attachment point on the yoke essentially without force.
  • the leaf spring Due to the new design and fastening of the leaf spring, it can fulfill a double function as a contact spring and as an armature return spring without the first leg exerting a directing force on the armature.
  • This first spring leg is thus only loaded in tension in its longitudinal direction, while it is freely movable in the transverse direction due to its cross-sectional configuration and the type of its attachment and absorbs practically no forces.
  • the restoring force for the armature is generated by the second spring leg, which is bent approximately at a right angle from the first spring leg and has a long spring length from this outside the arm rotation axis to the point of application on the armature, so that a soft spring characteristic over the long spring arm of the armature is produced.
  • this second spring leg can deflect in its longitudinal direction by pivoting the first spring leg, so that the armature is not moved on the bearing point and is therefore not subject to any noticeable friction.
  • the free movement of the first spring leg about its attachment point is achieved in an expedient embodiment in that it is pivotally mounted in a retaining pin projecting from the yoke.
  • This leg of the leaf spring can be by means of a Nen free end provided eyelet-shaped recess on the retaining pin.
  • the holding pin is adjustable in the longitudinal direction of this first spring leg, for example by bending, so that the position of the break point between the two spring legs can be changed, whereby the bias of the second spring leg against the armature is adjustable.
  • the first spring leg is not intended to exert any directing force on the armature, in a further embodiment it can have an area which is weakened in cross section. This is particularly advantageous if the end of the first spring leg is attached directly to the yoke by welding or in a comparable manner.
  • the cross-sectional weakening also ensures in this case that the first spring leg exerts practically no forces on the armature. If, in a particularly simple design, the leaf spring with the first spring leg should lie flat on the second yoke leg and be fastened to it, it is expedient if the armature is not usually on the free end of the yoke leg, but on the inside of the yoke leg on a coil flange is stored. In this way, it is also ensured in this embodiment that the plane of the second spring leg is at a distance from the armature pivot point.
  • the relay shown in FIGS. 1 and 2 has as a carrier a coil former 1 with the flanges 2 and 3, to which a winding 4 is applied and which carries a continuous core 5 inside.
  • An angular yoke 6 is coupled with its first leg 6a to one end of the coil core, while the second leg 6b extends parallel to the coil axis and forms a bearing for a plate-shaped armature 7 at its free end.
  • This armature forms a working air gap 8 with the free pole of the core 5.
  • the relay corresponds to a conventional structure.
  • the armature 7 actuates a contact spring 9 which is fastened to the armature with rivets or welding spots 10 and extends with its free end 9c beyond the armature, carries a contact piece 11 there and cooperates with a counter-contact element 12.
  • the current supply to the leaf spring 9 takes place via a wire 13, which is welded directly onto the contact piece 11.
  • the leaf spring 9 also serves to reset the armature in addition to making contact.
  • it has a first leg 9a, which is suspended at its end with an eyelet-shaped recess 9d on a holding pin 6c of the yoke 6 and from which a second leg 9b is bent at approximately a right angle at the break point 9d.
  • the holding pin 6c is expediently bent directly out of the material of the yoke 6. It can be adjusted by bending in the longitudinal direction of the spring leg 9a, whereby the break point 9d is also adjusted, so that the pretensioning of the leg 9b relative to the armature can be changed in this way.
  • the spring leg 9a can be freely pivoted about the attachment point on the holding pin 6c, it does not exert any forces on the anchor, rather it is only stressed in its longitudinal direction and thereby absorbs the forces of the second leg 9b. Since the first leg 9a lies in a plane which is at a distance from the axis of rotation of the armature 7, the second leg 9b of the leaf spring has a long lever arm and thus a soft spring characteristic. By reducing the cross-section in the area 9e, the spring rate increases particularly flat. The first leg is also kept particularly narrow in the region 9f, so that the action of prestressing forces on the armature is additionally excluded by this spring leg, even if this spring leg would not be completely free to move at the attachment point.
  • Fig. 3 shows a slightly modified embodiment compared to Fig. 2.
  • the leaf spring 19 was cranked slightly with its first spring leg 19a, so that it partially rests on the yoke leg 6b and attached to it by welding can be.
  • the spring 19 is pressed with an auxiliary stamp 20 step by step in the direction of arrow 21 until the relay response value has reached the desired size.
  • the spring leg 19a can be attached to the yoke in the manner mentioned.
  • the spring leg 19a exerts practically no prestressing forces on the armature.
  • FIG. 4 A further modification compared to FIGS. 2 and 3 is shown in FIG. 4.
  • the relay as such is largely constructed in this case as before.
  • the leaf spring 29 is placed with its first spring leg 29a directly flat on the yoke leg 6b and be on this consolidates.
  • the armature 27 is in this case not mounted on the yoke end, but next to the yoke leg 6b on a projection 3a of the coil flange 3.
  • a plunger 20 is first pressed lightly in the direction of arrow 21 until the desired prestressing of the armature is reached. Then the spring leg 29a is attached to the yoke leg 6b.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Impact Printers (AREA)

Abstract

1. Electromagnetic relay having a coil (4) which contains a coil core (5), an angled yoke (6), whose first leg (6a) is coupled with a pole end of the coil core (5) and whose second leg (6b) runs parallel to the coil axis, with a plate-like armature (7), which is mounted in the area of the free end of the second yoke leg (6b) and forms an air gap (8) with the other pole end of the coil core (5), as well as with an angled leaf spring (9) which serves as an armature restoring and contact spring and the first leg of which (9a) is secured to the yoke (6) and runs at least in part parallel to the second yoke leg (6b), and the second leg (9b) of which is essentially at right angles to the first leg (9a) of the leaf spring (9), in such a manner that the mutually abutting areas of the two legs (9a, 9b ; 19a, 19b ; 29a, 29b) of the leaf spring (9 ; 19 ; 29) exhibit at an approximate right angle a distinct knee, and the second leg (9b ; 19b ; 29b) of the leaf spring (9 ; 19 ; 29) lying partially on and being connected to the armature (7), characterized in that the area of the first leg (9a ; 19a ; 29a) of the leaf spring (9 ; 19 ; 29) in the vicinity of the knee is spaced from the rotational axis of the armature (7, 27) so as to increase the resilient length of the second leg (9b ; 19b ; 29b) of the leaf spring (9 ; 19 ; 29) and in that the first leg (9a ; 19a ; 29a) of the leaf spring (9 ; 19 ; 29) exhibits a swivel bearing (6c, 14) on the yoke (6) and/or a reduction in cross-section in such a manner that essentially it may only take up the tensile forces i.e. that it can be swivelled around its securing position on the yoke (6) almost without force.

Description

Die Neuerung betrifft ein elektromagnetisches Relais mit einer einen Spulenkern enthaltenden Spule, einem winkelförmigen Joch, dessen erster Schenkel mit einem Polende des Spulenkerns gekoppelt ist und dessen zweiter Schenkel parallel zur Spulenachse verläuft, mit einem plattenförmigen, am freien Ende des zweiten Jochschenkels gelagerten und mit dem anderen Polende des Spulenkerns einen Arbeitsluftspalt bildenden Anker sowie mit einer abgewinkelt ausgebildeten, als Ankerrückstell- und Kontaktfeder dienenden Blattfeder, deren erster Schenkel am Joch gehalten ist und sich zumindest teilweise parallel zum zweiten Jochschenkel erstreckt und deren zweiter Schenkel teilweise auf dem Anker aufliegend mit diesem verbunden ist.The innovation relates to an electromagnetic relay with a coil containing a coil core, an angular yoke, the first leg of which is coupled to a pole end of the coil core and the second leg extends parallel to the coil axis, with a plate-shaped, mounted at the free end of the second yoke leg and with the other pole end of the coil core forming an armature working gap and with an angled, serving as armature return and contact spring leaf spring, the first leg is held on the yoke and extends at least partially parallel to the second yoke leg and the second leg partially lying on the armature connected to it is.

Ein derartiges Relais ist bereits aus dem DE-GM 82 35 283 bekannt. Dort ist der erste Federschenkel der Blattfeder flach an einen Jochschenkel angeschweißt, so daß der im wesentlichen in einer durch die Ankerdrehachse verlaufenden Ebene liegt und außerdem eine Vorspannung auf den Anker in dessen Längsrichtung ausübt. Dadurch kann der durch den zweiten Federschenkel gefesselte Anker nicht frei auf seiner Lagerstelle abrollen, sondern es tritt im Lager eine unerwünschte Reibung auf. Durch die von beiden Federschenkeln auf den Anker ausgeübte Vorspannung wird die Federrate im übrigen verhältnismäßig steil.Such a relay is already known from DE-GM 82 35 283. There, the first spring leg of the leaf spring is welded flat to a yoke leg, so that it lies essentially in a plane running through the armature axis of rotation and also exerts a prestress on the armature in its longitudinal direction. As a result, the anchor tied up by the second spring leg cannot roll freely on its bearing point, but undesirable friction occurs in the bearing. The spring rate is relatively steep due to the preload exerted on the armature by both spring legs.

Aufgabe der Neuerung ist es, ein Relais der eingangs genannten Art so auszubilden, daß im Ankerlager unerwünschte Reibungen vermieden werden und daß die auf den Anker wirkende Federrate nur gering ansteigt.The object of the innovation is to design a relay of the type mentioned that undesirable in the anchor bearing te friction can be avoided and that the spring rate acting on the armature increases only slightly.

Neuerungsgemäß wird diese Aufgabe dadurch gelöst, daß die beiden Schenkel der Blattfeder an einem im Abstand von der Ankerdrehachse liegenden Knickpunkt annähernd einen rechten Winkel zueinander bilden und daß der erste Federschenkel im wesentlichen kräftefrei um seine Befestigungsstelle am Joch schwenkbar ist.According to the invention, this object is achieved in that the two legs of the leaf spring form an approximately right angle to one another at a break point located at a distance from the axis of rotation of the armature, and in that the first spring leg can be pivoted about its attachment point on the yoke essentially without force.

Durch die neuerungsgemäße Gestaltung und Befestigung der Blattfeder kann sie einen doppelte Funktion als Kontaktfeder und als-Ankerrückstellfeder erfüllen, ohne daß dabei der erste Schenkel eine Richtkraft auf den Anker ausübt. Dieser erste Federschenkel wird also lediglich in seiner Längsrichtung auf Zug belastet, während er in Querrichtung aufgrund seiner Querschnittsgestaltung und der Art seiner Befestigung frei beweglich ist und praktisch keine Kräfte aufnimmt. Die Rückstellkraft für den Anker wird vom zweiten Federschenkel erzeugt, welcher etwa im rechten Winkel vom ersten Federschenkel abgebogen ist und von diesem außerhalb der Ankerdrehachse liegenden Knickpunkt bis zum Angriffspunkt am Anker eine große Federlänge aufweist, so daß über den langen Federarm des Ankers eine weiche Federcharakteristik erzeugt wird. Bei der Ankerbewegung kann dieser zweite Federschenkel in seiner Längsrichtung durch Verschwenken des ersten Federschenkels ausweichen, so daß der Anker nicht auf der Lagerstelle verschoben wird und somit keiner merklichen Reibung unterliegt.Due to the new design and fastening of the leaf spring, it can fulfill a double function as a contact spring and as an armature return spring without the first leg exerting a directing force on the armature. This first spring leg is thus only loaded in tension in its longitudinal direction, while it is freely movable in the transverse direction due to its cross-sectional configuration and the type of its attachment and absorbs practically no forces. The restoring force for the armature is generated by the second spring leg, which is bent approximately at a right angle from the first spring leg and has a long spring length from this outside the arm rotation axis to the point of application on the armature, so that a soft spring characteristic over the long spring arm of the armature is produced. During the armature movement, this second spring leg can deflect in its longitudinal direction by pivoting the first spring leg, so that the armature is not moved on the bearing point and is therefore not subject to any noticeable friction.

Die freie Beweglichkeit des ersten Federschenkels um ihren Befestigungspunkt wird in einer zweckmäßigen Ausgestaltung dadurch erreicht, daß er in einem vom Joch vorstehenden Haltezapfen schwenkbar gelagert ist. Dieser Schenkel der Blattfeder kann dabei mittels einer an seinem freien Ende vorgesehenen ösenförmigen Ausnehmung an dem Haltezapfen eingehängt sein. In zweckmäßiger Ausgestaltung ist dabei weiterhin vorgesehen, daß der Haltezapfen in Längsrichtung dieses ersten Federschenkels verstellbar ist, beispielsweise durch Biegen, so daß die Lage des Knickpunktes zwischen den beiden Federschenkeln verändert werden kann, wodurch die Vorspannung des zweiten Federschenkels gegenüber dem Anker einstellbar ist.The free movement of the first spring leg about its attachment point is achieved in an expedient embodiment in that it is pivotally mounted in a retaining pin projecting from the yoke. This leg of the leaf spring can be by means of a Nen free end provided eyelet-shaped recess on the retaining pin. In an advantageous embodiment, it is further provided that the holding pin is adjustable in the longitudinal direction of this first spring leg, for example by bending, so that the position of the break point between the two spring legs can be changed, whereby the bias of the second spring leg against the armature is adjustable.

Da der erste Federschenkel keine Richtkraft auf den Anker ausüben soll, kann er in weiterer Ausgestaltung einen im Querschnitt geschwächten Bereich aufweisen. Dies ist besonders dann vorteilhaft, wenn das Ende des ersten Federschenkels unmittelbar am Joch durch Schweißen oder auf vergleichbare Weise befestigt ist. Durch die Querschnittsschwächung wird auch in diesem Fall sichergestellt, daß der erste Federschenkel praktisch keine Kräfte auf den Anker ausübt. Soll in besonders einfacher Gestaltung die Blattfeder mit dem ersten Federschenkel flach auf dem zweiten Jochschenkel aufliegen und an diesem befestigt sein, so ist es zweckmäßig, wenn der Anker nicht in üblicherweise auf dem freien Ende des Jochschenkels, sondern an der Innenseite des Jochschenkels auf einem Spulenflansch gelagert ist. Auf diese Weise wird auch bei dieser Ausführungsform sichergestellt, daß die Ebene des zweiten Federschenkels vom Ankerdrehpunkt einen Abstand besitzt.Since the first spring leg is not intended to exert any directing force on the armature, in a further embodiment it can have an area which is weakened in cross section. This is particularly advantageous if the end of the first spring leg is attached directly to the yoke by welding or in a comparable manner. The cross-sectional weakening also ensures in this case that the first spring leg exerts practically no forces on the armature. If, in a particularly simple design, the leaf spring with the first spring leg should lie flat on the second yoke leg and be fastened to it, it is expedient if the armature is not usually on the free end of the yoke leg, but on the inside of the yoke leg on a coil flange is stored. In this way, it is also ensured in this embodiment that the plane of the second spring leg is at a distance from the armature pivot point.

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

  • Fig. 1 in perspektivischer Darstellung ein neuerungsgemäß gestaltetes Relais,
  • Fig. 2 das Relais von Fig. 1 in Seitenansicht,
  • Fig. 3 und Fig. 4 abgewandelte Ausführungsformen eines Relais in einer der Fig. 2 entsprechenden Ansicht.
The innovation is explained in more detail below using exemplary embodiments with reference to the drawing. It shows
  • 1 is a perspective view of a relay designed according to the innovation,
  • 2 the relay of FIG. 1 in side view,
  • 3 and FIG. 4 modified embodiments of a relay in a view corresponding to FIG. 2.

Das in Fig. 1 und 2 dargestellte Relais besitzt als Träger einen Spulenkörper 1 mit den Flanschen 2 und 3, auf den eine Wicklung 4 aufgebracht ist und der im Innern einen durchgehenden Kern 5 trägt. Ein winkelförmiges Joch 6 ist mit seinem ersten Schenkel 6a an ein Ende des Spulenkerns gekoppelt, während sich der zweite Schenkel 6b parallel zur Spulenachse erstreckt und an seinem freien Ende eine Lagerung für einen plattenförmigen Anker 7 bildet. Dieser Anker bildet einen Arbeitsluftspalt 8 mit dem freien Pol des Kerns 5. Insoweit entspricht das Relais einem herkömmlichen Aufbau.The relay shown in FIGS. 1 and 2 has as a carrier a coil former 1 with the flanges 2 and 3, to which a winding 4 is applied and which carries a continuous core 5 inside. An angular yoke 6 is coupled with its first leg 6a to one end of the coil core, while the second leg 6b extends parallel to the coil axis and forms a bearing for a plate-shaped armature 7 at its free end. This armature forms a working air gap 8 with the free pole of the core 5. In this respect, the relay corresponds to a conventional structure.

Der Anker 7 betätigt eine Kontaktfeder 9, welche mit Nieten oder Schweißpunkten 10 auf dem Anker befestigt ist und mit ihrem freien Ende 9c über den Anker hinausreicht, dort ein Kontaktstück 11 trägt und mit einem Gegenkontaktelement 12 zusammenwirkt. Die Stromzuführung zu der Blattfeder 9 erfolgt über eine Litze 13, welche unmittelbar auf das Kontaktstück 11 aufgeschweißt ist.The armature 7 actuates a contact spring 9 which is fastened to the armature with rivets or welding spots 10 and extends with its free end 9c beyond the armature, carries a contact piece 11 there and cooperates with a counter-contact element 12. The current supply to the leaf spring 9 takes place via a wire 13, which is welded directly onto the contact piece 11.

Die Blattfeder 9 dient aber neben der Kontaktgabe auch zur Ankerrückstellung. Sie besitzt zu diesem Zweck einen ersten Schenkel 9a, der an seinem Ende mit einer ösenförmigen Ausnehmung 9d an einem Haltezapfen 6c des Joches 6 eingehängt ist und von dem am Knickpunkt 9d ein zweiter Schenkel 9b annähernd im rechten Winkel abgebogen ist. Der Haltezapfen 6c ist zweckmäßigerweise unmittelbar aus dem Material des Joches 6 herausgebogen. Er kann durch Biegen in Längsrichtung des Federschenkels 9a verstellt werden, wodurch auch der Knickpunkt 9d verstellt wird, so daß auf diese Weise die Vorspannung des Schenkels 9b gegenüber dem Anker verändert werden kann.The leaf spring 9 also serves to reset the armature in addition to making contact. For this purpose, it has a first leg 9a, which is suspended at its end with an eyelet-shaped recess 9d on a holding pin 6c of the yoke 6 and from which a second leg 9b is bent at approximately a right angle at the break point 9d. The holding pin 6c is expediently bent directly out of the material of the yoke 6. It can be adjusted by bending in the longitudinal direction of the spring leg 9a, whereby the break point 9d is also adjusted, so that the pretensioning of the leg 9b relative to the armature can be changed in this way.

Da der Federschenkel 9a um den Einhängepunkt am Haltezapfen 6c frei verschwenkt werden kann, übt er auf den Anker keinerlei Kräfte aus, er wird vielmehr nur in seiner Längsrichtung beansprucht und nimmt dabei die Kräfte des zweiten Schenkels 9b auf. Da der erste Schenkel 9a in einer Ebene liegt, die einen Abstand zur Drehachse des Ankers 7 aufweist, ergibt sich für den zweiten Schenkel 9b der Blattfeder ein langer Hebelarm und damit eine weiche Federcharakteristik. Durch eine Querschnittsverminderung im Bereich 9e steigt die Federrate besonders flach an. Der erste Schenkel ist im Bereich 9f zusätzlich besonders schmal gehalten, so daß die Einwirkung von Vorspannkräften auf den Anker durch diesen Federschenkel zusätzlich ausgeschlossen wird, selbst wenn dieser Federschenkel am Einhängepunkt nicht völlig frei beweglich wäre.Since the spring leg 9a can be freely pivoted about the attachment point on the holding pin 6c, it does not exert any forces on the anchor, rather it is only stressed in its longitudinal direction and thereby absorbs the forces of the second leg 9b. Since the first leg 9a lies in a plane which is at a distance from the axis of rotation of the armature 7, the second leg 9b of the leaf spring has a long lever arm and thus a soft spring characteristic. By reducing the cross-section in the area 9e, the spring rate increases particularly flat. The first leg is also kept particularly narrow in the region 9f, so that the action of prestressing forces on the armature is additionally excluded by this spring leg, even if this spring leg would not be completely free to move at the attachment point.

Fig. 3 zeigt eine etwas abgewandelte Ausführungsform gegenüber Fig. 2. Um in diesem Fall den Haltezapfen am Joch einzusparen, wurde die Blattfeder 19 mit ihrem ersten Federschenkel 19a leicht gekröpft, so daß er teilweise auf dem Jochschenkel 6b aufliegt und durch Schweißen an diesem befestigt werden kann. Bei der Montage wird die Feder 19 mit einem Hilfsstempel 20 schrittweise in Richtung des Pfeiles 21 gedrückt, bis der Relaisansprechwert die gewünschte Größe erreicht hat. Danach kann der Federschenkel 19a in der erwähnten Weise am Joch befestigt werden. Durch entsprechende Querschnittsgestaltung wird auch in diesem Fall erreicht, daß der Federschenkel 19a praktisch keine Vorspannkräfte auf den Anker ausübt.Fig. 3 shows a slightly modified embodiment compared to Fig. 2. To save the retaining pin on the yoke in this case, the leaf spring 19 was cranked slightly with its first spring leg 19a, so that it partially rests on the yoke leg 6b and attached to it by welding can be. During assembly, the spring 19 is pressed with an auxiliary stamp 20 step by step in the direction of arrow 21 until the relay response value has reached the desired size. Then the spring leg 19a can be attached to the yoke in the manner mentioned. With a corresponding cross-sectional design it is also achieved in this case that the spring leg 19a exerts practically no prestressing forces on the armature.

Eine weitere Abwandlung gegenüber Fig. 2 und 3 zeigt Fig. 4. Das Relais als solches ist auch in diesem Fall weitgehend wie vorher aufgebaut. Nunmehr ist jedoch die Blattfeder 29 mit ihrem ersten Federschenkel 29a unmittelbar flach auf den Jochschenkel 6b aufgelegt und an diesem befestigt. Um einen Abstand gegenüber der Ankerlagerung herzustellen, ist der Anker 27 in diesem Fall nicht auf dem Jochende, sondern neben dem Jochschenkel 6b auf einem Vorsprung 3a des Spulenflansches 3 gelagert. Bei der Montage wird auch in diesem Fall zunächst mit einem Stempel 20 leicht in Richtung des Pfeiles 21 gedrückt, bis die gewünschte Vorspannung des Ankers erreicht ist. Dann wird der Federschenkel 29a an dem Jochschenkel 6b befestigt.A further modification compared to FIGS. 2 and 3 is shown in FIG. 4. The relay as such is largely constructed in this case as before. Now, however, the leaf spring 29 is placed with its first spring leg 29a directly flat on the yoke leg 6b and be on this consolidates. In order to create a distance from the armature bearing, the armature 27 is in this case not mounted on the yoke end, but next to the yoke leg 6b on a projection 3a of the coil flange 3. During assembly, in this case too, a plunger 20 is first pressed lightly in the direction of arrow 21 until the desired prestressing of the armature is reached. Then the spring leg 29a is attached to the yoke leg 6b.

Claims (8)

1. Elektromagnetisches Relais mit einer einen Spulenkern enthaltenden Spule, einem winkelförmigen Joch, dessen erster Schenkel mit einem Polende des Spulenkerns gekoppelt ist und dessen zweiter Schenkel parallel zur Spulenachse verläuft, mit einem plattenförmigen, am freien Ende des zweiten Jochschenkels gelagerten und mit dem anderen Polende des Spulenkerns einen Arbeitsluftspalt bildenden Anker sowie mit einer abgewinkelt ausgebildeten, als Ankerrückstell- und Kontaktfeder dienenden Blattfeder, deren erster Schenkel am Joch gehalten ist und sich zumindest teilweise parallel zum zweiten Jochschenkel erstreckt und deren zweiter Schenkel teilweise auf dem Anker aufliegend mit diesem verbunden ist, dadurch gekenn- zeichnet, daß die beiden Schenkel (9a, 9b; 19a, 19b; 29a, 29b) der Blattfeder (9, 19, 29) in einem im Abstand von der Ankerdrehachse liegenden Knickpunkt (9d) annähernd einen rechten Winkel zueinander bilden und daß der erste Schenkel (9a; 19a; 29a) im wesentlichen kräftefrei um seine Befestigungsstelle am Joch (6) schwenkbar ist.1. Electromagnetic relay with a coil containing a coil core, an angular yoke, the first leg of which is coupled to a pole end of the coil core and the second leg of which runs parallel to the coil axis, with a plate-shaped bearing mounted on the free end of the second yoke leg and with the other pole end of the coil core forming an armature working gap and with an angled leaf spring serving as armature return and contact spring, the first leg of which is held on the yoke and extends at least partially parallel to the second yoke leg and the second leg of which is partially connected to the armature and connected to it characterized in that the two legs (9a, 9b; 19a, 19b; 29a, 29b) of the leaf spring (9, 19, 29) form approximately a right angle to one another at a break point (9d) lying at a distance from the armature axis of rotation and that the first leg (9a; 19a; 29a) essentially free of forces u m its attachment point on the yoke (6) is pivotable. 2. Relais nach Anspruch 1, dadurch gekennzeichnet, daß der erste Schenkel (9a) der Blattfeder (9) an einem vom Joch (6) vorstehenden Haltezapfen (6c) schwenkbar gelagert ist.2. Relay according to claim 1, characterized in that the first leg (9a) of the leaf spring (9) on a yoke (6) projecting retaining pin (6c) is pivotally mounted. 3. Relais nach Anspruch 2, dadurch gekenn- zeichnet, daß der erste Schenkel (9a) der Blattfeder (9) mittels einer an seinem freien Ende vorgesehenen Ausnehmung (14) an dem Haltezapfen (6c) eingehängt ist.3. Relay according to claim 2, characterized in that the first leg (9a) of the leaf spring (9) is suspended by means of a recess (14) provided on its free end on the holding pin (6c). 4. Relais nach Anspruch 2 oder 3, dadurch ge- kennzeichnet, daß der Haltezapfen (6c) in Längsrichtung des zweiten Federschenkels (9a) verstellbar ist.4. Relay according to claim 2 or 3, characterized in that the holding pin (6c) in The longitudinal direction of the second spring leg (9a) is adjustable. 5. Relais nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet , daß der erste Schenkel (9a) der Blattfeder einen im Querschnitt geschwächten Abschnitt (9f) aufweist.5. Relay according to one of claims 1 to 4, characterized in that the first leg (9a) of the leaf spring has a section (9f) weakened in cross section. 6. Relais nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , daß der erste Schenkel (19a; 29a) der Blattfeder (19; 29) mit seinem freien Ende unmittelbar mit dem Joch (6) verbunden ist.6. Relay according to one of claims 1 to 5, characterized in that the first leg (19a; 29a) of the leaf spring (19; 29) with its free end is connected directly to the yoke (6). 7. Relais nach Anspruch 6, dadurch gekenn- zeichnet, daß der erste Schenkel (29a) der Blattfeder (29) flach auf der Außenseite des zweiten Jochschenkels (6b) aufliegt und daß der Anker (7) an der Innenseite des zweiten Jochschenkels (6b) auf einem Vorsprung (3a) eines Spulenflansches (3) gelagert ist.7. Relay according to claim 6, characterized in that the first leg (29a) of the leaf spring (29) lies flat on the outside of the second yoke leg (6b) and that the armature (7) on the inside of the second yoke leg (6b ) is mounted on a projection (3a) of a coil flange (3). 8. Relais nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet , daß der zweite Federschenkel (9b) eine gering ansteigende Federkennrate besitzt.8. Relay according to one of claims 1 to 7, characterized in that the second spring leg (9b) has a slightly increasing spring rate.
EP84110632A 1983-09-09 1984-09-06 Electromagnetic relay Expired EP0136592B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8325986U 1983-09-09
DE8325986U DE8325986U1 (en) 1983-09-09 1983-09-09 Electromagnetic relay

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EP0136592B1 EP0136592B1 (en) 1988-06-01

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004101A1 (en) * 1986-11-28 1988-06-02 Robert Bosch Gmbh Electromagnetic relay
AT389958B (en) * 1986-03-24 1990-02-26 Uninorm Anstalt RELAY
WO1991006964A1 (en) * 1989-10-24 1991-05-16 Siemens Aktiengesellschaft Contact device for a changer relay
WO1991012623A1 (en) * 1990-02-06 1991-08-22 Siemens Aktiengesellschaft Electromagnetic relay
AT404765B (en) * 1986-03-24 1999-02-25 Schrack Components Ag Relay
EP1469500A1 (en) * 2003-04-15 2004-10-20 Siemens Aktiengesellschaft Magnet system for a relay with a rocker armature
CN101807492A (en) * 2010-03-23 2010-08-18 乐清市金川电子有限公司 Large-current relay
CN107910227A (en) * 2017-12-22 2018-04-13 宁波天波港联电子有限公司 A kind of AUTOMOTIVE RELAY
CN109273325A (en) * 2017-07-18 2019-01-25 松川精密股份有限公司 Relay

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EP0167668B1 (en) * 1984-05-09 1988-09-07 Siemens Aktiengesellschaft Contact arrangement for a relay with a high interrupting capacity
DE8506345U1 (en) * 1985-03-05 1986-07-03 Siemens AG, 1000 Berlin und 8000 München Contact arrangement in a relay for high switching capacity
DE3935773A1 (en) * 1989-10-24 1991-04-25 Siemens Ag METHOD FOR PRODUCING A CONTACT DEVICE
US7116193B2 (en) * 2004-09-29 2006-10-03 Hella Kgaa Hueck & Co. Electromagnetic relay
DE102015208134A1 (en) * 2015-01-30 2016-08-04 Te Connectivity Germany Gmbh Arrangement for an electrical switching device

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DE1935084U (en) * 1966-01-08 1966-03-24 Schaltbau Gmbh SMALL RELAY.
US3437962A (en) * 1967-06-12 1969-04-08 American Mach & Foundry Clapper type relay with improved armature
DE2939178A1 (en) * 1978-11-01 1980-05-08 Omron Tateisi Electronics Co ELECTROMAGNETIC FOLDING RELAY
DE8235283U1 (en) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Electromagnetic relay

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Publication number Priority date Publication date Assignee Title
DE1935084U (en) * 1966-01-08 1966-03-24 Schaltbau Gmbh SMALL RELAY.
US3437962A (en) * 1967-06-12 1969-04-08 American Mach & Foundry Clapper type relay with improved armature
DE2939178A1 (en) * 1978-11-01 1980-05-08 Omron Tateisi Electronics Co ELECTROMAGNETIC FOLDING RELAY
DE8235283U1 (en) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Electromagnetic relay

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389958B (en) * 1986-03-24 1990-02-26 Uninorm Anstalt RELAY
AT404765B (en) * 1986-03-24 1999-02-25 Schrack Components Ag Relay
WO1988004101A1 (en) * 1986-11-28 1988-06-02 Robert Bosch Gmbh Electromagnetic relay
US4951017A (en) * 1986-11-28 1990-08-21 Robert Bosch Gmbh Electromagnetic relay
WO1991006964A1 (en) * 1989-10-24 1991-05-16 Siemens Aktiengesellschaft Contact device for a changer relay
US5324901A (en) * 1989-10-24 1994-06-28 Siemens Aktiengesellschaft Contact device for a changer relay
WO1991012623A1 (en) * 1990-02-06 1991-08-22 Siemens Aktiengesellschaft Electromagnetic relay
EP1469500A1 (en) * 2003-04-15 2004-10-20 Siemens Aktiengesellschaft Magnet system for a relay with a rocker armature
CN101807492A (en) * 2010-03-23 2010-08-18 乐清市金川电子有限公司 Large-current relay
CN109273325A (en) * 2017-07-18 2019-01-25 松川精密股份有限公司 Relay
CN107910227A (en) * 2017-12-22 2018-04-13 宁波天波港联电子有限公司 A kind of AUTOMOTIVE RELAY
CN107910227B (en) * 2017-12-22 2020-09-29 宁波天波港联电子有限公司 Automobile relay

Also Published As

Publication number Publication date
DE3471808D1 (en) 1988-07-07
DE8325986U1 (en) 1983-12-29
EP0136592B1 (en) 1988-06-01

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