EP0697706B1 - Armature holding structure for an electromagnetic relay - Google Patents
Armature holding structure for an electromagnetic relay Download PDFInfo
- Publication number
- EP0697706B1 EP0697706B1 EP95110514A EP95110514A EP0697706B1 EP 0697706 B1 EP0697706 B1 EP 0697706B1 EP 95110514 A EP95110514 A EP 95110514A EP 95110514 A EP95110514 A EP 95110514A EP 0697706 B1 EP0697706 B1 EP 0697706B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- spring
- section
- bearing
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- 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 invention relates to an anchor holder for an electromagnetic Relay with a parallel to a coil core flat yoke leg, one on its face Bearing edge for a plate-shaped anchor and at least a retaining pin projecting over the end face forms, the anchor approximately at right angles to the yoke leg is arranged and with the coil core a working air gap forms, further with an anchor spring formed from sheet metal, which with a bearing section on the the coil core the anchor side facing away is attached flat and with a biasing portion is held on the support pin.
- An anchor bracket of this type is already with a relay known, which is described in DE 35 28 715 A1.
- the anchor rests on the front of the yoke leg, whereby he has a recess in the area of a respective holding pin owns.
- the anchor spring is in the bearing area of the yoke leg bent outwards and with their retaining tabs on attached to the smooth surface of the retaining pin or pins, what, for example, because of the effective forces by a Welding process or in a similar way must be done.
- There the anchor's bearing point is not there with the axis of movement the spring coincides with a certain bearing friction expected in the anchor bearing, which is undesirable.
- the aim of the present invention is to provide an anchor bracket to create the type mentioned, in which by a certain anchor-yoke-spring combination a very low friction and abrasion Anchor bearing is created.
- the anchor and spring should be light and with few parts, especially with few simple operations can be assembled; at the same time Clamping effects between anchor, yoke and spring avoided become.
- an anchor bracket achieved in that the bearing edge between the front side and the broad side facing the core of the yoke leg is formed that the anchor with his Front side mounted on the broad side of the yoke leg is that the armature spring with its bearing section on the Front of the yoke leg rests and that the biasing section the anchor spring on the holding pin with such a bias is supported that between the bearing section the inner edge of the bearing formed by the spring and the end face of the anchor is pressed against the bearing edge of the yoke leg.
- the anchor is therefore in the anchor holder according to the invention not on the front as in most conventional cases of the yoke leg, rather it is with his Front side mounted on the broad side of the yoke, the Front side of the armature together with the armature spring an inner edge of the bearing forms that formed by the end of the yoke leg Bearing edge includes.
- the bearing axis of the anchor and the the spring coincides with it, so that the friction in the bearing is minimized.
- the anchor spring simply away from the anchor Yoke outside in a notch or the like of Attach the retaining pin. This also results in a simple one Assembly because a welding process or the like is not required is. (The connection of the anchor to the anchor spring welding or riveting takes place before assembly on the yoke.)
- the anchor can also be made without incisions in connection with the yoke leg over the entire width of the yoke stay, which works well for the magnetic transition, because neither the anchor spring nor the retaining pin touch the bearing edge cut through.
- the bearing edge in cross section a smaller angle than that between the anchor face and the bearing portion of the spring have formed inner edge, with the choice of the attachment point of the biasing portion of the spring on the support pin the restoring force for the armature is specified.
- the bearing edge is through the projecting retaining pin or by additional yoke steps divided into two separate edge sections, the bearing section of the armature spring accordingly the edge sections forms two spring bars, between which the biasing section is cut free. It would be conceivable also a reverse embodiment, in which a medium Edge section with a bearing section of the armature spring between two lateral holding pins and two spring pre-tensioning sections would be provided, but in this case the narrower support base of the anchor spring on the yoke leg the stability of the anchor guide is lower.
- the armature spring is also designed so that the biasing section and the bearing section or the spring bars next to each other on a common Spring end section related and their mutual Preload is characterized by opposite elastic spreading get the level of the spring end section out.
- This common one The spring end section expediently extends parallel to the outer broad side of the yoke leg, while the bearing portion and the biasing portion of the armature spring offset to each other each L-shaped to the anchor or are bent towards the holding pin.
- the common spring section expediently extends with a certain Distance parallel to the yoke leg, causing it to move when anchoring can be bent and a softer Spring characteristic results.
- the biasing section through a central recess to a spring clip with proportionally small cross-section is formed in a hanging notch of the holding pin is supported.
- the one hung on the retaining pin The crossbar of the spring clip is arched molded on the inside, resulting in the aforementioned protection against displacement in the direction of the armature bearing axis.
- the relay shown in the drawing has one not shown base body or coil body a core 1, which is connected to an L-shaped yoke 2, whereby a free yoke leg 21 extends parallel to the core.
- a Armature 3 is mounted on the yoke leg 21 and forms a core pole plate 4 a working air gap. He's about one Armature spring 10 held in a manner to be described later; a contact spring 11 is in one piece on the armature spring 10 molded on which contact pieces at their free end 5 carries, which can be switched between two counter-contact elements 6 and 7 are.
- a second, indicated by dashed lines in FIG. 4 Contact spring lla can, for example, for bridge or Serve double contact.
- the power supply to the contact spring takes place via a strand 8 and one not shown Connector.
- the armature 3 is with its end face to the coupled to the core facing broad surface of the yoke leg 21.
- the yoke leg forms one on its end face Bearing edge 22, which, however, in the form of two edge sections formed only on the outer regions of the yoke leg 21 is.
- the one cut out like a frame in the storage area Armature spring 10 has a bearing section in the form of two Spring bars 12, which on the outside facing away from the core the armature 3 are attached lying, for example by Rivet 31.
- the spring bars 12 form with the end face of the anchor 3 an inner edge 32 which rests on the bearing edge 22.
- the end face 23 of the yoke leg 21 slightly chamfered so that the bearing edge 22 in cross section has an angle of slightly less than 90 ° to the free Mobility of the armature 3 with the spring bars 12 on the bearing edge 22 to ensure.
- the armature spring 10 is preferably made made of a harder material than the soft iron of the Yokes 2, for example made of stainless steel. To this Way results from the material pairing of the yoke on the one hand and the armature spring, on the other hand, has good bearing properties.
- the yoke leg 21 is between the two spring bars 12 slightly extended and thus forms yoke steps 24, which secure the anchor against lateral impact and additionally the magnetic coupling of the armature 3 to the yoke leg 21 improve.
- the width of the yoke steps 24 is selected so that that a distance to the spring bars 12 remains, to a frictional movement between the spring bars and the Avoid yoke level.
- the yoke leg 21 has an extension of it Front and in the middle between the two yoke stages 24 a projecting retaining pin 25 which has a notch 26 for Has a biasing portion 13 of the armature spring.
- This biasing section 13 is by a central one Recess 17 to a spring clip with a relatively narrow Bridge width and thus small cross-section formed, see above that it has a soft spring characteristic.
- the Indian Hanging notch 26 of the retaining pin lying cross bar 14 of the The spring clip is also drawn inward in an arc, which means the spring clip and with it the anchor is centered.
- On the crossbar 14 is also formed with a mounting bracket 15, with the help of the spring clip during assembly and can be hung.
- the spring end section 16 of the armature spring facing away from the armature, which connects the spring bars 12 to the spring clip 13 extends parallel to the yoke leg 21 at its core away from the outside, with a distance from the Yoke leg. This allows this spring end cut 16 to deflect the armature movement so that the spring characteristic overall becomes softer. From the plane of the spring end section 16 are thus the spring bars 12 forming the bearing section and the spring clip 13 each approximately at right angles in the direction bent on the anchor, but offset from each other. Thereby Preload forces F1 and F2 unfold with one the distance of the hanging notch 26 to the bearing edge 22 formed Lever arm.
- the spring bars 12 on the one hand and the spring clip 13 on the other from the common spring plane of the spring end section 16 will be the anchor-anchor spring combination with the Forces F1 and F2 in two directions against the bearing edge 22 pressed.
- the location of the mount point in the notch 26 is a prestressing moment for the anchor generated its pivot point on the inner edge 32, whereby the At rest contact force is determined.
- the retaining pin 25 is weakened in cross section so that it can be deformed along the double arrow 28 to the Attachment point in the notch 26 and thus adjust the bias.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Impact Printers (AREA)
Description
Die Erfindung betrifft eine Ankerhalterung für ein elektromagnetisches Relais mit einem parallel zu einem Spulenkern angeordneten flachen Jochschenkel, der an seiner Stirnseite eine Lagerkante für einen plattenförmigen Anker sowie mindestens einen über die Stirnseite vorspringenden Haltezapfen bildet, wobei der Anker annähernd rechtwinkelig zum Jochschenkel angeordnet ist und mit dem Spulenkern einen Arbeitsluftspalt bildet, ferner mit einer aus Blech geformten Ankerfeder, welche mit einem Lagerabschnitt auf der dem Spulenkern abgewandten Ankerseite flach aufliegend befestigt ist und mit einem Vorspannabschnitt an dem Haltezapfen gehalten ist.The invention relates to an anchor holder for an electromagnetic Relay with a parallel to a coil core flat yoke leg, one on its face Bearing edge for a plate-shaped anchor and at least a retaining pin projecting over the end face forms, the anchor approximately at right angles to the yoke leg is arranged and with the coil core a working air gap forms, further with an anchor spring formed from sheet metal, which with a bearing section on the the coil core the anchor side facing away is attached flat and with a biasing portion is held on the support pin.
Eine Ankerhalterung dieser Art ist bereits bei einem Relais bekannt, welches in der DE 35 28 715 A1 beschrieben ist. Dort liegt der Anker auf der Stirnseite des Jochschenkels auf, wobei er im Bereich eines jeweiligen Haltezapfens eine Ausnehmung besitzt. Die Ankerfeder ist im Lagerbereich vom Jochschenkel weg nach außen gebogen und mit ihren Haltelappen auf der glatten Oberfläche des oder der Haltezapfen befestigt, was beispielsweise aufgrund der wirksamen Kräfte durch einen Schweißvorgang oder auf eine ähnliche Weise geschehen muß. Da der Lagerpunkt des Ankers dort nicht mit der Bewegungsachse der Feder übereinstimmt, ist mit einer gewissen Lagerreibung im Ankerlager zu rechnen, was unerwünscht ist.An anchor bracket of this type is already with a relay known, which is described in DE 35 28 715 A1. There the anchor rests on the front of the yoke leg, whereby he has a recess in the area of a respective holding pin owns. The anchor spring is in the bearing area of the yoke leg bent outwards and with their retaining tabs on attached to the smooth surface of the retaining pin or pins, what, for example, because of the effective forces by a Welding process or in a similar way must be done. There the anchor's bearing point is not there with the axis of movement the spring coincides with a certain bearing friction expected in the anchor bearing, which is undesirable.
Ziel der vorliegenden Erfindung ist es, eine Ankerhalterung der eingangs genannten Art zu schaffen, bei der durch eine bestimmte Anker-Joch-Feder-Kombination ein sehr reib- und abriebarmes Ankerlager geschaffen wird. Der Anker samt Feder soll leicht und mit wenigen Teilen, insbesondere auch mit wenigen einfachen Arbeitsgängen montierbar sein; zugleich sollen Klemmeffekte zwischen Anker, Joch und Feder vermieden werden. The aim of the present invention is to provide an anchor bracket to create the type mentioned, in which by a certain anchor-yoke-spring combination a very low friction and abrasion Anchor bearing is created. The anchor and spring should be light and with few parts, especially with few simple operations can be assembled; at the same time Clamping effects between anchor, yoke and spring avoided become.
Erfindungsgemäß wird dieses Ziel mit einer Ankerhalterung der eingangs genannten Art dadurch erreicht, daß die Lagerkante zwischen der Stirnseite und der dem Kern zugewandten Breitseite des Jochschenkels gebildet ist, daß der Anker mit seiner Stirnseite an der Breitseite des Jochschenkels gelagert ist, daß die Ankerfeder mit ihrem Lagerabschnitt auf der Stirnseite des Jochschenkels aufliegt und daß der Vorspannabschnitt der Ankerfeder an dem Haltezapfen mit derartiger Vorspannung abgestützt ist, daß die zwischen dem Lagerabschnitt der Feder und der Anker-Stirnseite gebildete Lager-Innenkante gegen die Lagerkante des Jochschenkels gedrückt wird.According to the invention, this is achieved with an anchor bracket achieved in that the bearing edge between the front side and the broad side facing the core of the yoke leg is formed that the anchor with his Front side mounted on the broad side of the yoke leg is that the armature spring with its bearing section on the Front of the yoke leg rests and that the biasing section the anchor spring on the holding pin with such a bias is supported that between the bearing section the inner edge of the bearing formed by the spring and the end face of the anchor is pressed against the bearing edge of the yoke leg.
Bei der erfindungsgemäßen Ankerhalterung liegt also der Anker nicht wie in den meisten herkömmlichen Fällen auf der Stirnseite des Jochschenkels auf, vielmehr ist er mit seiner Stirnseite an der Breitseite des Joches gelagert, wobei die Stirnseite des Ankers zusammen mit der Ankerfeder eine Lager-Innenkante bildet, die die von dem Ende des Jochschenkels gebildete Lagerkante umfaßt. Die Lagerachse des Ankers und die der Feder fallen damit zusammen, so daß die Reibung im Lager minimiert wird. Durch die Richtung der Kräfte, mit denen der Anker in das Lager gedrückt wird, genügt es auch, den Vorspannabschnitt der Ankerfeder einfach von der dem Anker abgewandten Jochaußenseite her in eine Kerbe oder dergleichen des Haltezapfens einzuhängen. Dadurch ergibt sich auch eine einfache Montage, da ein Schweißvorgang oder ähnliches nicht erforderlich ist. (Die Verbindung des Ankers mit der Ankerfeder durch Schweißen oder Nieten erfolgt bereits vor dessen Montage am Joch.)The anchor is therefore in the anchor holder according to the invention not on the front as in most conventional cases of the yoke leg, rather it is with his Front side mounted on the broad side of the yoke, the Front side of the armature together with the armature spring an inner edge of the bearing forms that formed by the end of the yoke leg Bearing edge includes. The bearing axis of the anchor and the the spring coincides with it, so that the friction in the bearing is minimized. By the direction of the forces with which the Anchor is pressed into the bearing, it is also sufficient to the biasing section the anchor spring simply away from the anchor Yoke outside in a notch or the like of Attach the retaining pin. This also results in a simple one Assembly because a welding process or the like is not required is. (The connection of the anchor to the anchor spring welding or riveting takes place before assembly on the yoke.)
Bei der hier vorgesehenen Art der Ankerlagerung an der Breitseite des Jochschenkels kann der Anker auch ohne Einschnitte über die ganze Jochbreite mit dem Jochschenkel in Verbindung bleiben, was sich für den magnetischen Übergang gut auswirkt, weil weder die Ankerfeder noch der Haltezapfen die Lagerkante durchschneiden. Um dem Anker im Lager Bewegungsfreiheit zu verschaffen, ohne daß diese allein durch die Elastizität der Ankerfeder im Lagerbereich erzeugt werden muß, sollte die Lagerkante im Querschnitt einen kleineren Winkel als die zwischen der Ankerstirnseite und dem Lagerabschnitt der Feder gebildete Innenkante aufweisen, wobei durch Wahl des Einhängepunktes des Vorspannabschnitts der Feder an dem Haltezapfen die Rückstellkraft für den Anker vorgegeben ist. Durch Deformation des Haltezapfens, also durch eine Biegung um eine zur Lagerkante parallele Achse, kann der Einhängepunkt und damit die Rückstellkraft justiert werden. Zweckmäßigerweise greift der Vorspannabschnitt mit dem Haltezapfen kraftschlüssig in der Weise ineinander, daß er und mit ihm der Anker gegen eine Verschiebung in Richtung parallel zur Lagerachse gesichert sind.With the type of anchor bearing provided here on the broad side of the yoke leg, the anchor can also be made without incisions in connection with the yoke leg over the entire width of the yoke stay, which works well for the magnetic transition, because neither the anchor spring nor the retaining pin touch the bearing edge cut through. To allow the anchor in the warehouse freedom of movement procure without this solely through the elasticity of the Anchor spring must be generated in the bearing area, the bearing edge in cross section a smaller angle than that between the anchor face and the bearing portion of the spring have formed inner edge, with the choice of the attachment point of the biasing portion of the spring on the support pin the restoring force for the armature is specified. By deformation of the retaining pin, i.e. by a bend by one Bearing edge parallel axis, the mounting point and thus the restoring force can be adjusted. Appropriately takes effect the biasing section with the retaining pin in a frictional manner the way in which he and with him the anchor against one Movement secured in the direction parallel to the bearing axis are.
In einer bevorzugten Ausführungsform ist die Lagerkante durch den vorspringenden Haltezapfen bzw. durch zusätzliche Jochstufen in zwei voneinander getrennte Kantenabschnitte unterteilt, wobei der Lagerabschnitt der Ankerfeder entsprechend den Kantenabschnitten zwei Federstege bildet, zwischen denen der Vorspannabschnitt freigeschnitten ist. Denkbar wäre zwar auch eine umgekehrte Ausführungsform, bei der ein mittlerer Kantenabschnitt mit einem Lagerabschnitt der Ankerfeder zwischen zwei seitlichen Haltezapfen und zwei Feder-Vorspannabschnitten vorgesehen wäre, doch wäre in diesem Fall durch die schmälere Auflagebasis der Ankerfeder auf dem Jochschenkel die Stabilität der Ankerführung geringer.In a preferred embodiment, the bearing edge is through the projecting retaining pin or by additional yoke steps divided into two separate edge sections, the bearing section of the armature spring accordingly the edge sections forms two spring bars, between which the biasing section is cut free. It would be conceivable also a reverse embodiment, in which a medium Edge section with a bearing section of the armature spring between two lateral holding pins and two spring pre-tensioning sections would be provided, but in this case the narrower support base of the anchor spring on the yoke leg the stability of the anchor guide is lower.
Bei der bevorzugten Ausführungsform ist weiterhin die Ankerfeder so gestaltet, daß der Vorspannabschnitt und der Lagerabschnitt bzw. die Federstege nebeneinander an einem gemeinsamen Federendabschnitt zusammenhängen und ihre gegenseitige Vorspannung durch entgegengesetzte elastische Spreizung aus der Ebene des Federendabschnittes heraus erhalten. Dieser gemeinsame Federendabschnitt erstreckt sich zweckmäßigerweise parallel zur äußeren Breitseite des Jochschenkels, während der Lagerabschnitt und der Vorspannabschnitt der Ankerfeder jeweils versetzt zueinander jeweils L-förmig zum Anker bzw. zum Haltezapfen hin abgebogen sind. Der gemeinsame Federabschnitt erstreckt sich zweckmäßigerweise mit einem gewissen Abstand parallel zum Jochschenkel, wodurch er bei der Ankerbewegung selbst durchgebogen werden kann und eine weichere Federcharakteristik ergibt.In the preferred embodiment, the armature spring is also designed so that the biasing section and the bearing section or the spring bars next to each other on a common Spring end section related and their mutual Preload is characterized by opposite elastic spreading get the level of the spring end section out. This common one The spring end section expediently extends parallel to the outer broad side of the yoke leg, while the bearing portion and the biasing portion of the armature spring offset to each other each L-shaped to the anchor or are bent towards the holding pin. The common spring section expediently extends with a certain Distance parallel to the yoke leg, causing it to move when anchoring can be bent and a softer Spring characteristic results.
Weiterhin ist es vorteilhaft, daß der Vorspannabschnitt durch eine Mittenausnehmung zu einem Federbügel mit verhältnismäßig geringem Querschnitt geformt ist, der in einer Einhängekerbe des Haltezapfens abgestützt ist. Der an dem Haltezapfen eingehängte Quersteg des Federbügels ist dabei bogenförmig nach innen geformt, wodurch sich die erwähnte Sicherung gegen Verschiebung in Richtung der Ankerlagerachse ergibt.It is also advantageous that the biasing section through a central recess to a spring clip with proportionally small cross-section is formed in a hanging notch of the holding pin is supported. The one hung on the retaining pin The crossbar of the spring clip is arched molded on the inside, resulting in the aforementioned protection against displacement in the direction of the armature bearing axis.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel
anhand der Zeichnung näher erläutert. Es zeigt
Das in der Zeichnung dargestellte Relais besitzt in einem
nicht gezeichneten Grundkörper bzw. Spulenkörper einen Kern
1, der mit einem L-förmigen Joch 2 verbunden ist, wobei sich
ein freier Jochschenkel 21 parallel zum Kern erstreckt. Ein
Anker 3 ist an dem Jochschenkel 21 gelagert und bildet mit
einer Kernpolplatte 4 einen Arbeitsluftspalt. Er ist über eine
Ankerfeder 10 auf später noch zu beschreibende Weise gehalten;
an der Ankerfeder 10 ist eine Kontaktfeder 11 einstückig
angeformt, welche an ihrem freien Ende Kontaktstücke
5 trägt, die zwischen zwei Gegenkontaktelementen 6 und 7 umschaltbar
sind. Eine in Figur 4 gestrichelt angedeutete zweite
Kontaktfeder lla kann beispielsweise zur Brücken- oder
Doppelkontaktgabe dienen. Die Stromzufuhr zur Kontaktfeder
erfolgt über eine Litze 8 und ein weiter nicht dargestelltes
Anschlußelement. Der Anker 3 ist mit seiner Stirnseite an die
dem Kern zugewandte Breitfläche des Jochschenkels 21 gekoppelt.
Dabei bildet der Jochschenkel an seiner Stirnseite eine
Lagerkante 22, welche allerdings in Form von zwei Kantenabschnitten
nur an den Außenbereichen des Jochschenkels 21 ausgebildet
ist. Die im Lagerbereich rahmenförmig ausgeschnittene
Ankerfeder 10 besitzt einen Lagerabschnitt in Form zweier
Federstege 12, welche auf der vom Kern abgewandten Außenseite
des Ankers 3 aufliegend befestigt sind, beispielsweise durch
Niete 31. Die Federstege 12 bilden mit der Stirnseite des Ankers
3 eine Innenkante 32, die auf der Lagerkante 22 aufliegt.
Dabei ist die Stirnseite 23 des Jochschenkels 21
leicht angeschrägt, so daß die Lagerkante 22 im Querschnitt
einen Winkel von etwas weniger als 90° besitzt, um die freie
Beweglichkeit des Ankers 3 mit den Federstegen 12 auf der Lagerkante
22 zu gewährleisten. Die Ankerfeder 10 besteht vorzugsweise
aus einem härteren Werkstoff als das Weicheisen des
Joches 2, beispielsweise aus nicht rostendem Stahl. Auf diese
Weise ergibt sich durch die Werkstoffpaarung des Joches einerseits
und der Ankerfeder andererseits eine gute Lagereigenschaft.The relay shown in the drawing has one
not shown base body or coil body a core
1, which is connected to an L-
Zwischen den beiden Federstegen 12 ist der Jochschenkel 21
geringfügig verlängert und bildet so jeweils Jochstufen 24,
welche den Anker gegen seitliche Stöße sichern und zusätzlich
die magnetische Kopplung des Ankers 3 zum Jochschenkel 21
verbessern. Die Breite der Jochstufen 24 ist jedoch so gewählt,
daß jeweils ein Abstand zu den Federstegen 12 verbleibt,
um eine Reibbewegung zwischen den Federstegen und der
Jochstufe zu vermeiden. The
Weiterhin besitzt der Jochschenkel 21 in Verlängerung seiner
Stirnseite und in der Mitte zwischen den beiden Jochstufen 24
einen vorspringenden Haltezapfen 25, der eine Kerbe 26 zum
Einhängen eines Vorspannabschnittes 13 der Ankerfeder aufweist.
Dieser Vorspannabschnitt 13 ist durch eine mittige
Ausnehmung 17 zu einem Federbügel mit verhältnismäßig schmaler
Stegbreite und damit geringem Querschnitt ausgebildet, so
daß er eine weiche Federcharakteristik aufweist. Der in der
Einhängekerbe 26 des Haltezapfens liegende Quersteg 14 des
Federbügels ist außerdem bogenförmig nach innen gezogen, wodurch
der Federbügel und mit ihm der Anker zentriert wird. An
dem Quersteg 14 ist außerdem eine Montagelasche 15 angeformt,
mit deren Hilfe der Federbügel bei der Montage ergriffen und
eingehängt werden kann.Furthermore, the
Der vom Anker abgewandte Federendabschnitt 16 der Ankerfeder,
der die Federstege 12 mit dem Federbügel 13 verbindet, erstreckt
sich parallel zum Jochschenkel 21 an dessen vom Kern
abgewandter Außenseite, und zwar mit einem Abstand von dem
Jochschenkel. Dadurch kann sich dieser Federendschnitt 16 bei
der Ankerbewegung durchbiegen, so daß die Federcharakteristik
insgesamt weicher wird. Aus der Ebene des Federendabschnittes
16 sind also die den Lagerabschnitt bildenden Federstege 12
und der Federbügel 13 jeweils etwa rechtwinkelig in Richtung
auf den Anker abgebogen, allerdings zueinander versetzt. Dadurch
entfalten sich Vorspannkräfte F1 und F2 mit einem durch
die Entfernung der Einhängekerbe 26 zur Lagerkante 22 gebildeten
Hebelarm. Durch die entgegengesetzte Auseinanderspreizung
der Federstege 12 einerseits und des Federbügels 13 andererseits
aus der gemeinsamen Federebene des Federendabschnittes
16 wird die Anker-Ankerfeder-Kombination mit den
Kräften F1 und F2 in zwei Richtungen gegen die Lagerkante 22
gedrückt. Zusätzlich wird durch die Lage des Einhängepunktes
in der Kerbe 26 ein Vorspannmoment für den Anker bezüglich
seines Drehpunktes an der Innenkante 32 erzeugt, wodurch die
Ruhekontaktkraft bestimmt wird. Durch eine Justierkerbe 27
ist der Haltezapfen 25 im Querschnitt so geschwächt, daß er
entlang dem Doppelpfeil 28 deformiert werden kann, um den
Einhängepunkt in der Kerbe 26 und damit die Vorspannung einzustellen.The
Claims (11)
- Armature holder for an electromagnetic relay having a flat yoke limb (21) which is arranged parallel to a coil core (1) and forms, at its end face (23), a bearing edge (22) for an armature (3) in the form of a plate and forms at least one retaining pin (25) which projects beyond the end face, in which case the armature is arranged approximately at right angles to the yoke limb and forms an operating air gap with the coil core, furthermore having an armature spring (10) which is formed from sheet metal and is mounted with a bearing section (12) such that it rests flat on the armature side facing away from the coil core (1), and which armature spring (10) is held with a prestressing section (13) against the retaining pin (25), characterized in that the bearing edge (22) is formed between the end face (23) and that breadth face of the yoke limb (21) which faces the core, in that the armature (3) is mounted with its end face against the breadth face of the yoke limb (21), in that the armature spring (10) rests with its bearing section (12) on the end face of the yoke limb (21), and in that the prestressing section (13) of the armature spring is supported against the retaining pin (25) with a prestress such that the bearing inner edge (32) which is formed between the bearing section (12) of the spring and the armature end face is pressed against the bearing edge (22) of the yoke limb.
- Armature holder according to Claim 1, characterized in that, in cross section, the bearing edge (22) has a smaller angle than the inner edge (32) which is formed between the inside of the armature and the bearing section of the spring, and in that a resetting force for the armature (3) is provided by defining the attachment point (26) of the prestressing section (13) of the spring on the retaining pin (25).
- Armature holder according to Claim 2, characterized in that the bearing section (12) of the armature spring (10) forms a right angle with the mounted end face of the armature, and in that the bearing edge (22) of the yoke limb has a cross-sectional angle of less than 90° as a result of the yoke end face (23) having a chamfer.
- Armature holder according to one of Claims 1 to 3, characterized in that the attachment point (26) of the prestressing section (13) can be adjusted by deformation of the retaining pin (25).
- Armature holder according to Claim 4, characterized in that the retaining pin (25) has an adjustment notch (27) in the region between the attachment point (26) of the prestressing section (13) and the transition to the yoke limb (21).
- Armature holder according to one of Claims 1 to 5, characterized in that the prestressing section (13) and the bearing section (12) are joined together alongside one another on a common spring end section (16) of the armature spring, and maintain their prestress by opposing elastic spreading-out of the plane of the spring end section (16).
- Armature holder according to one of Claims 1 to 6, characterized in that the bearing edge (22) is subdivided into two mutually separate edge sections, between which the retaining pin (25) is integrally formed on the yoke limb (21), and in that the bearing section (12) of the armature spring (10) forms two spring webs (12) corresponding to the edge sections, between which spring webs (12) the prestressing section (13) is cut free.
- Armature holder according to Claim 6 or 7, characterized in that the common spring end section (16) extends parallel to the breadth face of the yoke limb (21), and in that the bearing section (12) and the prestressing section (13) are each bent offset with respect to one another in an L-shape towards the armature (3) and towards the retaining pin (25), respectively.
- Armature holder according to Claim 7 or 8, characterized in that the prestressing section (13) is formed by means of a centre recess to produce a spring clip which is supported in an attachment notch (26) on the retaining pin (25).
- Armature holder according to one of Claims 1 to 9, characterized in that the prestressing section (13) is secured on the retaining pin (25) against movement in the direction parallel to the bearing edge (22), by engagement in one another with a force fit.
- Armature holder according to one of Claims 1 to 10, characterized in that a contact spring (11) which projects beyond the moving armature end is integrally formed on the armature spring (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4429552 | 1994-08-19 | ||
| DE4429552A DE4429552A1 (en) | 1994-08-19 | 1994-08-19 | Anchor bracket for an electromagnetic relay |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0697706A2 EP0697706A2 (en) | 1996-02-21 |
| EP0697706A3 EP0697706A3 (en) | 1998-02-25 |
| EP0697706B1 true EP0697706B1 (en) | 1999-10-13 |
Family
ID=6526157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95110514A Expired - Lifetime EP0697706B1 (en) | 1994-08-19 | 1995-07-05 | Armature holding structure for an electromagnetic relay |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5534834A (en) |
| EP (1) | EP0697706B1 (en) |
| JP (1) | JPH0869736A (en) |
| DE (2) | DE4429552A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59601280D1 (en) * | 1995-08-23 | 1999-03-18 | Siemens Ag | ELECTROMAGNETIC RELAY AND ITS USE ON A CIRCUIT BOARD |
| DE19544624C1 (en) * | 1995-11-30 | 1997-01-02 | Hella Kg Hueck & Co | Electromagnetic hinged armature relay for motor vehicles |
| US6679488B2 (en) * | 2000-05-08 | 2004-01-20 | Tyco Electronics Amp Gmbh | Armature spring for a relay |
| US6498561B2 (en) * | 2001-01-26 | 2002-12-24 | Cornerstone Sensors, Inc. | Thermistor and method of manufacture |
| DE10200619B4 (en) * | 2001-02-22 | 2006-07-13 | Tyco Electronics Amp Gmbh | Electromagnetic switching relay |
| AUPR475301A0 (en) * | 2001-05-04 | 2001-05-31 | Alcatel | Micro-relay for telecommunications network configuration |
| EP1286374B1 (en) * | 2001-08-10 | 2005-04-20 | Tyco Electronics AMP GmbH | Switching relay with improved armature spring |
| DE10162585C1 (en) * | 2001-12-19 | 2003-04-24 | Gruner Ag | Electrical relay has auxiliary spring acting on switched contact spring in closed contact position for reducing rebound |
| DE102008039704A1 (en) * | 2008-08-26 | 2010-03-04 | Tyco Electronics Amp Gmbh | Contact arrangement with bent strand, relay with contact arrangement and method for mounting a relay |
| DE102008039705B4 (en) * | 2008-08-26 | 2018-05-30 | Te Connectivity Germany Gmbh | Contact assembly for a relay, relay with contact assembly and method for mounting a relay |
| JP4952840B1 (en) * | 2010-12-06 | 2012-06-13 | オムロン株式会社 | Electromagnetic relay |
| SG2012068896A (en) * | 2012-09-17 | 2014-04-28 | Schneider Electric South East Asia Hq Pte Ltd | Tool and method for switching an electromagnetic relay |
| DE102014103247A1 (en) * | 2014-03-11 | 2015-09-17 | Tyco Electronics Austria Gmbh | Electromagnetic relay |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3528715A1 (en) | 1985-08-09 | 1987-02-19 | Siemens Ag | Electromagnetic relay |
| DE3675852D1 (en) * | 1985-08-09 | 1991-01-10 | Siemens Ag | ELECTROMAGNETIC RELAY. |
| BR9001560A (en) * | 1990-04-04 | 1990-11-06 | Schrack Eletronica Ltda | TELE PERFECTED MINIATURE |
| DE9015406U1 (en) * | 1990-11-09 | 1992-03-05 | Siemens AG, 8000 München | Electromagnetic relay with contact spring attached to the armature |
| US5155458A (en) * | 1991-11-04 | 1992-10-13 | Gamble John G | Normally closed AC relay |
| JP2588956Y2 (en) * | 1993-04-14 | 1999-01-20 | ナイルス部品株式会社 | Electromagnetic relay |
| DE4320831C1 (en) * | 1993-06-23 | 1994-07-07 | Hella Kg Hueck & Co | Armature bearing for a hinged armature relay |
-
1994
- 1994-08-19 DE DE4429552A patent/DE4429552A1/en not_active Withdrawn
-
1995
- 1995-07-05 EP EP95110514A patent/EP0697706B1/en not_active Expired - Lifetime
- 1995-07-05 DE DE59507034T patent/DE59507034D1/en not_active Expired - Lifetime
- 1995-08-10 US US08/513,616 patent/US5534834A/en not_active Expired - Fee Related
- 1995-08-15 JP JP7208239A patent/JPH0869736A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE4429552A1 (en) | 1996-02-22 |
| US5534834A (en) | 1996-07-09 |
| EP0697706A2 (en) | 1996-02-21 |
| JPH0869736A (en) | 1996-03-12 |
| EP0697706A3 (en) | 1998-02-25 |
| DE59507034D1 (en) | 1999-11-18 |
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