EP0791945B1 - Electromagnetic relay with combined return and contact spring - Google Patents

Electromagnetic relay with combined return and contact spring Download PDF

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Publication number
EP0791945B1
EP0791945B1 EP97102089A EP97102089A EP0791945B1 EP 0791945 B1 EP0791945 B1 EP 0791945B1 EP 97102089 A EP97102089 A EP 97102089A EP 97102089 A EP97102089 A EP 97102089A EP 0791945 B1 EP0791945 B1 EP 0791945B1
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EP
European Patent Office
Prior art keywords
spring
contact
relay according
return
actuating member
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
Application number
EP97102089A
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German (de)
French (fr)
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EP0791945A3 (en
EP0791945A2 (en
Inventor
Leopold Mader
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Tyco Electronics Austria GmbH
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Tyco Electronics Austria GmbH
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Publication of EP0791945A2 publication Critical patent/EP0791945A2/en
Publication of EP0791945A3 publication Critical patent/EP0791945A3/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • 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
    • H01H50/26—Parts movable about a knife edge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity

Definitions

  • the invention relates to an electromagnetic relay with a Magnet system, which is a coil, a fixed core-yoke arrangement and comprises a pivotably mounted anchor, also with a contact arrangement that is an elongated Contact spring with a movable contact and at least one Contact carrier includes a fixed contact, as well as with a Actuator, which on the one hand with a movable End portion of the armature and on the other hand with the contact spring is coupled, the contact spring being part of a Switch spring clamped on one side, which is also a forms return spring coupled to the actuator.
  • a Magnet system which is a coil, a fixed core-yoke arrangement and comprises a pivotably mounted anchor, also with a contact arrangement that is an elongated Contact spring with a movable contact and at least one Contact carrier includes a fixed contact, as well as with a Actuator, which on the one hand with a movable End portion of the armature and on the other hand with the contact spring is coupled, the contact spring being part of a
  • EP 0 375 398 A2 describes an unpoled relay with a flat magnet system and one below the magnet system arranged normally open contact arrangement shown.
  • the anchor reset takes place there directly through the contact spring. With this arrangement a changeover contact is difficult to implement because there are armature vibrations in the idle state directly on the break contact would impact. There is also an additional anchor spring required to keep the anchor in place.
  • the aim of the present invention is to improve the Relay mentioned in the way that with as few as possible and easily manufactured parts a compact relay structure and achieved a low-friction actuation of the contact spring can be.
  • a switching spring with a reset function is intended be realized with an exact and low friction Allows guidance of the actuator, whereby a low response power is also achieved. With appropriate Design it should also with this switch spring be able to save your own anchor spring.
  • this object is achieved in a relay of the type mentioned at the outset in that the return spring lies at least approximately in one plane with the contact spring and in that the actuating element, which is movable perpendicular to the longitudinal extension of the switching spring, is at least two articulation points along one parallel to the pivot axis of the switching spring by the return spring Line is guided.
  • a switching spring is used which essentially forms both the contact spring and the return spring in one common plane and in one piece and can be produced by a simple cutting process.
  • individual spring tabs whether for resetting or for contact actuation, for example for adjustment, are easily bent out of the common spring plane.
  • the return spring also forms at least two flush actuation points through which the actuator is gripped and guided with low friction, the spaced-apart articulation points simultaneously securing against lateral tilting and against friction on other structural parts.
  • the return spring has guidance preferably two separate return legs, either on either side of the actual contact spring on the outside or with a frame-shaped design the contact spring run inside their side legs can.
  • the actuator is in any case accordingly be designed. This offers a symmetrical design the switch spring, also with regard to a symmetrical Force distribution with as little friction as possible.
  • the two Reset leg preferably by fork-shaped design formed the return spring, these two return legs next to the side legs of the contact spring extend within their frame shape.
  • the coupling the actuator is preferably carried out by guide lugs, the opposite on the two reset legs to each other and across their longitudinal extension are angled and in mutually aligned guide grooves engage the actuator.
  • the actuator In the preferred embodiment is the actuator with its outer contour adapted the fork shape of the return spring and between them Reset legs out.
  • the contact spring is expediently via at least one actuating tabs branched from it and lying outside the current path each with an associated switch cam of the actuator, the switching cam each opposite the pivot points of the return spring in the direction of actuation is offset.
  • the one outside the current path lying operating flap has the advantage that it high switching capacities is heated less than the actual ones current-carrying areas of the contact spring. In order to one also avoids the risk of thermal deformation of the actuator.
  • two actuating tabs from the contact section the contact spring towards the inside of its frame shape branched in such a way that their ends each one Face the end of a reset leg.
  • the magnet system an essentially flat anchor that approximates extends parallel to the switching spring, at one end over a Bearing end section is mounted on a core section and with the other, movable end over the actuator biased away from the magnet system by the return spring is, the anchor with its central portion on one to Bearing axis parallel lever line of a base body swiveling rests so that its bearing end section due to the leverage is pressed into the bearing.
  • the switch spring can thus be configured via the actuator additionally push the anchor into its storage so that it also bears against the core when the magnet system is not excited, so that an additional anchor spring is not required.
  • This Function of the anchor bracket via the switching spring can be used in the Relay according to the invention advantageously also for a changeover contact be used because the holding function by the functionally separate return spring occurs and an impairment of the break contact due to the armature mass is to be feared.
  • the mentioned lever line as a pivot point for the anchor is preferably by one on the base body trained rolling edge generated. But that would also be conceivable the reverse case, that a kink formed at anchor or Unroll the roll bar on a flat surface of the body could.
  • the relay shown in Figures 1 to 7 exists according to Figure 1 from a base body 1, the one on its underside Contact arrangement 2 carries with an actuator 3, and a magnet system arranged above the base body 4.
  • the relay system is arranged in a housing that is formed by a base plate 5 and a cap 6.
  • the base body 1 is box-shaped made of insulating material and forms a partition 11 between the magnet system 4 and the contact arrangement 2, which only has an opening 12 for has the actuator 3.
  • a control room 13 formed by the side walls 14 of the Basic body is surrounded and on one side by a staged formation of the partition 11 in a contact space 13a passes with greater height.
  • a switching spring 21 over most of its length approximately parallel to the bottom of the relay by the Base plate 5 is set.
  • the switching spring 21 is flat Leaf spring cut and forms a frame-shaped contact spring 22 with current-carrying side legs 22a, which are merge towards the free end to form a contact section 22b; on this a movable contact 29 is attached.
  • two actuating tabs 22c on the contact portion 22b cut free on both sides within the frame shape, such that they point towards the clamping point.
  • the switching spring 21 forms one piece with the contact spring 22 a fork-shaped return spring 23, which is essentially starting from the attachment end 21a of the switch spring is separated from the contact spring 22 and with two Reset legs 23a substantially parallel within the Frame shape of the contact spring 22 parallel to the side legs 22a extends (see also Figure 3).
  • the return spring 23 forms a U-shape with its reset legs 23a, the to the outer contour of the actuator to be described 3 is adjusted.
  • the switching spring 21 is on a fastening end 21a Spring bracket 24 attached, which in turn via fastening tabs 24a in slots 14 on opposite Side walls 15 of the base body 1 are anchored.
  • the mounting tabs 24a have hook-shaped contours for better Anchoring; there is also a terminal lug on the spring support 24 24b formed by a corresponding Breakthrough of the base plate 5 is guided to the outside.
  • the contact arrangement further comprises an NC contact carrier 25 with an NC contact 26 and one Normally open contact carrier 27 with a normally open contact 28. Both contact carriers are via fastening sections 25a and 27a in corresponding plug-in shafts 16 of the base body 1 anchored. They also each have terminal lugs 25b or 27b, which led through the base plate 5 to the outside are.
  • the contact carriers 25 and 27 are designed and in the contact space 13a arranged so that the movable contact 29 optionally with the normally closed contact 26 and the normally open contact 28 works together.
  • the magnet system 4 arranged above the base body has a bobbin 41 with a winding 42, the axis is parallel to the bottom of the relay.
  • a core yoke 43 forms in one piece a core leg 43a, which axially extends through the entire coil, and a yoke leg 43b, which is parallel to the core leg below the coil extends close to the winding to about half the coil length.
  • An anchor 44 extends with its main part flat in extension of the yoke leg 43b, one in Cross-section recessed pole end portion 44a also Pole section 43c of the yoke leg that has a reduced cross section overlaps.
  • a bearing end portion 44b of the armature is angled towards the free core end 43d and in a pocket 45 of a bobbin flange 41a mounted so that it rolls on the free core end 43d.
  • the bobbin flange 41a surrounds this free core end 43d on three sides and secures it the bearing end portion 44b of the armature with retaining ribs 41b also against wandering away in the axial direction of the coil.
  • in the rest of this end portion 44b of the armature is passed through the restoring force of the return spring 23 in the storage pressed the core end 43d. This restoring force acts on the movable armature end 44c and pulls it away from the coil downward.
  • the switching movement of the Anchor transmits has a hook portion 31 which is essentially the opening 12 of the partition perpendicular to the base plane 11 interspersed and with its hook-shaped end on one Breakthrough 44d of the armature 44 is suspended. Over the free The end of this hook part 31 is also in the pole section 43c of the pole leg 43b is provided with a recess 43e which is a complete attachment of the anchor to the yoke leg in this Area allows.
  • the actuator has a flat foot part 32, which lies essentially in the plane of the switching spring 21 and has an M-shape in this example.
  • the middle leg of the M is connected to the hook part 31.
  • a guide groove 33 is formed, in each of which a guide tab 23b of the adjacent return leg 23a engages.
  • actuating cam 34 which is below the adjacent actuating tab 22d of the contact spring and with an upward movement of the actuator 3 brings the contact spring into the closed position.
  • the relay is installed in such a way that, on the one hand the magnet system according to Figure 4 is pre-assembled and on the other hand the contact arrangement 3 in the base body from the bottom is anchored here.
  • the magnet system according to FIG. 4 is assembled with the base body according to FIG. 5, wherein Coil connector pins 46 in corresponding openings of the Basic body are inserted.
  • the actuator 3 by the frame-shaped switching spring inserted through and hooked into the anchor.
  • the purpose of the actuator 3 is initially in an inclined position, as dashed in FIG. 2 with the reference symbol 3 ' shown, led upwards, with the hook part 31 in the Breakthrough 12 inserted and then in the final position pivoted.
  • Any plastic abrasion is also without snap-in connections avoided, which could endanger the contacts.
  • the bottom plate 5 and the cap 6 then become the housing formed, which also seals in a known manner can be.
  • FIGS. 8 and 9 show two further possible designs the switch spring and corresponding to the actuator shown.
  • the switching spring 121 according to FIG. 8 has a contact spring 122, which is a modification of the Contact spring 22 of Figure 3 now only a single, center has arranged leg, at the end of a contact section 122b carries the movable contact 29.
  • the Return spring 123 is in this case by two on both sides next to the outer sides of the contact spring return legs 123a formed, each at their free ends have outwardly angled actuating lugs 123b.
  • Corresponding the modified form of the switch spring 123 is also a modified actuator 103 is provided.
  • the two hook parts 131 extend itself up to the anchor, the anchor being natural is appropriately designed on both sides to hang to permit the hook parts 131, and also the Base body in its partition instead of the previously described central opening 12 now two outside Breakthroughs must have.
  • the spring support 24 is as in the previous one Designed embodiment.
  • FIG. 9 shows a further modification compared to FIG. 8.
  • the Switch spring 221 has a similar to switch spring 121 central contact spring 222 with a contact section 222b and a reset leg 223a formed by the outside Return spring 223, with the return leg on have a guide lug 223b at its end.
  • the actuator 203 is similar to the actuator 103 U-shaped designed. It has two hook parts 231 and one across extending foot portion 232, in which guide grooves 233 for Recording the guide tabs 223b are formed.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Relay Circuits (AREA)
  • Cookers (AREA)
  • Push-Button Switches (AREA)

Abstract

The relay has a magnet system with an armature that operates on a switching spring via an actuating element. This switching spring has a frame-shaped contact spring as well as a fork-shaped reset spring, intermeshed in one plane and mutually decoupled, whereby the reset spring guides the actuating element via at least two linkage points lying in a line parallel to the pivot axis. The relay of the present invention provides a compact construction with few individual parts and a very low-friction operation.

Description

Die Erfindung betrifft ein elektromagnetisches Relais mit einem Magnetsystem, welches eine Spule, eine feststehende Kern-Joch-Anordnung und einen schwenkbar gelagerten Anker umfaßt, ferner mit einer Kontaktanordnung, die eine langgestreckte Kontaktfeder mit einem beweglichen Kontakt und mindestens einen Kontaktträger mit einem Festkontakt umfaßt, sowie mit einem Betätigungsorgan, welches einerseits mit einem beweglichen Endabschnitt des Ankers und andererseits mit der Kontaktfeder gekoppelt ist, wobei die Kontaktfeder Teil einer einseitig eingespannten Schaltfeder ist, die zusätzlich eine mit dem Betätigungsorgan gekoppelte Rückstellfeder bildet.The invention relates to an electromagnetic relay with a Magnet system, which is a coil, a fixed core-yoke arrangement and comprises a pivotably mounted anchor, also with a contact arrangement that is an elongated Contact spring with a movable contact and at least one Contact carrier includes a fixed contact, as well as with a Actuator, which on the one hand with a movable End portion of the armature and on the other hand with the contact spring is coupled, the contact spring being part of a Switch spring clamped on one side, which is also a forms return spring coupled to the actuator.

In der EP 0 375 398 A2 ist ein ungepoltes Relais mit einem flachen Magnetsystem und einer unterhalb des Magnetsystems angeordneten Schließer-Kontaktanordnung dargestellt. Die Betätigung der Kontaktfeder erfolgt dort über ein hebelartiges Betätigungsorgan, welches selbst schwenkbar im Gehäuse gelagert ist und sowohl mit dem Anker als auch mit der Kontaktfeder Berührungspunkte hat, die wegen der getrennten Lagerung des Betätigungsorgans jeweils Relativbewegungen mit entsprechender Reibung erfahren. Dazu kommt die Lagerreibung des Betätigungsorgans selbst. Die Ankerrückstellung erfolgt dort unmittelbar durch die Kontaktfeder. Bei dieser Anordnung ist ein Umschaltkontakt nur schwer zu verwirklichen, da sich Ankerschwingungen im Ruhezustand unmittelbar auf den Öffnerkontakt auswirken würden. Außerdem ist eine zusätzliche Ankerfeder erforderlich, um den Anker in seiner Lagerung zu halten.EP 0 375 398 A2 describes an unpoled relay with a flat magnet system and one below the magnet system arranged normally open contact arrangement shown. The actuation the contact spring there is a lever-like Actuator, which itself is pivotally mounted in the housing and with both the armature and the contact spring Has points of contact because of the separate storage of the actuator each relative movements with corresponding Experience friction. In addition, there is the bearing friction of the actuator itself. The anchor reset takes place there directly through the contact spring. With this arrangement a changeover contact is difficult to implement because there are armature vibrations in the idle state directly on the break contact would impact. There is also an additional anchor spring required to keep the anchor in place.

Aus der DE 26 27 168 B2 ist auch bereits ein Relais der eingangs genannte Art mit allgemeinem Aufbau bekannt, bei dem ein getrennter Rückstellschenkel von der Kontaktfeder abgezweigt ist, wobei durch entsprechende gegensätzliche Biegungen unterschiedliche Vorspannkräfte erzeugt werden. Allerdings ist durch die dort gezeigte Schaltfeder keine exakte Führung des Betätigungsgliedes möglich. Für die praktische Ausgestaltung dieses Systems ist demnach eine zusätzliche, reibungsbehaftete Führung für das Betätigungsorgan erforderlich.From DE 26 27 168 B2 there is already a relay at the beginning known type with a general structure known in which a separate return leg branched from the contact spring is, with corresponding opposite bends different biasing forces are generated. Indeed is not exact due to the switching spring shown there Guidance of the actuator possible. For the practical The design of this system is therefore an additional frictional guidance required for the actuator.

Ziel der vorliegenden Erfindung ist eine Verbesserung des eingangs genannten Relais in der Weise, daß mit möglichst wenigen und einfach herstellbaren Teilen ein kompakter Relaisaufbau und eine reibungsarme Betätigung der Kontaktfeder erreicht werden kann. Dabei soll eine Schaltfeder mit Rückstellfunktion verwirklicht werden, die eine exakte und reibungsarme Führung des Betätigungsgliedes ermöglicht, wodurch auch eine geringe Ansprechleistung erzielt wird. Bei entsprechender Ausgestaltung soll es mit dieser Schaltfeder auch möglich sein, eine eigene Ankerfeder einzusparen.The aim of the present invention is to improve the Relay mentioned in the way that with as few as possible and easily manufactured parts a compact relay structure and achieved a low-friction actuation of the contact spring can be. A switching spring with a reset function is intended be realized with an exact and low friction Allows guidance of the actuator, whereby a low response power is also achieved. With appropriate Design it should also with this switch spring be able to save your own anchor spring.

Erfindungsgemäß wird dieses Ziel bei einem Relais der eingangs genannten Art dadurch erreicht, daß die Rückstellfeder zumindest annähernd in einer Ebene mit der Kontaktfeder liegt und daß das senkrecht zur Längserstreckung der Schaltfeder bewegliche Betätigungsglied durch die Rückstellfeder über mindestens zwei Anlenkpunkte entlang einer zur Schwenkachse der Schaltfeder parallelen Linie geführt wird.
Bei der Erfindung ist also eine Schaltfeder verwendet, die im wesentlichen in einer gemeinsamen Ebene und einstückig sowohl die Kontaktfeder als auch die Rückstellfeder bildet und durch einen einfachen Schnittvorgang hergestellt werden kann. Dabei ist natürlich nicht ausgeschlossen, daß einzelne Federlappen, ob zur Rückstellung oder zur Kontaktbetätigung, etwa zur Justierung leicht aus der gemeinsamen Federebene herausgebogen werden. Grundsätzlich sind jedoch für diese Schaltfeder keine starken Biegungen oder Abkröpfungen in verschiedene Ebenen erforderlich, die einen komplizierten Herstellvorgang bedingen würden. Die Rückstellfeder bildet außerdem mindestens zwei miteinander fluchtende Betätigungspunkte, durch die das Betätigungsglied erfaßt und reibungsarm geführt wird, wobei die voneinander beabstandeten Anlenkpunkte zugleich eine Sicherung gegen seitliches Kippen und gegen Reibung an anderen Konstruktionsteilen bilden.According to the invention, this object is achieved in a relay of the type mentioned at the outset in that the return spring lies at least approximately in one plane with the contact spring and in that the actuating element, which is movable perpendicular to the longitudinal extension of the switching spring, is at least two articulation points along one parallel to the pivot axis of the switching spring by the return spring Line is guided.
In the invention, therefore, a switching spring is used which essentially forms both the contact spring and the return spring in one common plane and in one piece and can be produced by a simple cutting process. Of course, it is not excluded that individual spring tabs, whether for resetting or for contact actuation, for example for adjustment, are easily bent out of the common spring plane. In principle, however, no strong bends or offsets in different planes are required for this switching spring, which would require a complicated manufacturing process. The return spring also forms at least two flush actuation points through which the actuator is gripped and guided with low friction, the spaced-apart articulation points simultaneously securing against lateral tilting and against friction on other structural parts.

Obwohl auch eine einschenkelige Rückstellfeder bei entsprechender Breite im Bereich des Betätigungsgliedes die erfindungsgemäße Führung ermöglichen kann, besitzt die Rückstellfeder vorzugsweise zwei voneinander getrennte Rückstellschenkel, die entweder beiderseits der eigentlichen Kontaktfeder an deren Außenseite oder bei einer rahmenförmigen Gestaltung der Kontaktfeder innerhalb von deren Seitenschenkeln verlaufen können. Das Betätigungsglied wird in jedem Fall entsprechend gestaltet sein. Dabei bietet sich eine symmetrische Gestaltung der Schaltfeder, auch im Hinblick auf eine symmetrische Kräfteverteilung mit möglichst wenig Reibung, an. Bei der erwähnten Rahmenform der Kontaktfeder sind die beiden Rückstellschenkel vorzugsweise durch gabelförmige Gestaltung der Rückstellfeder gebildet, wobei sich diese beiden Rückstellschenkel jeweils neben den Seitenschenkeln der Kontaktfeder innerhalb von deren Rahmenform erstrecken. Die Ankopplung an das Betätigungsglied erfolgt vorzugsweise durch Führungsnasen, die an den beiden Rückstellschenkeln jeweils entgegengesetzt zueinander und quer zu ihrer Längserstreckung abgewinkelt sind und in zueinander fluchtende Führungsnuten des Betätigungsgliedes eingreifen. In der bevorzugten Ausgestaltung ist das Betätigungsglied mit seiner Außenkontur an die Gabelform der Rückstellfeder angepaßt und zwischen deren Rückstellschenkeln geführt.Although also a one-leg return spring with a corresponding Width in the area of the actuator the invention The return spring has guidance preferably two separate return legs, either on either side of the actual contact spring on the outside or with a frame-shaped design the contact spring run inside their side legs can. The actuator is in any case accordingly be designed. This offers a symmetrical design the switch spring, also with regard to a symmetrical Force distribution with as little friction as possible. at the mentioned frame shape of the contact spring are the two Reset leg preferably by fork-shaped design formed the return spring, these two return legs next to the side legs of the contact spring extend within their frame shape. The coupling the actuator is preferably carried out by guide lugs, the opposite on the two reset legs to each other and across their longitudinal extension are angled and in mutually aligned guide grooves engage the actuator. In the preferred embodiment is the actuator with its outer contour adapted the fork shape of the return spring and between them Reset legs out.

Die Kontaktfeder wird zweckmäßigerweise über mindestens einen von ihr abgezweigten, außerhalb des Strompfades liegenden Betätigungslappen jeweils durch einen zugehörigen Schaltnocken des Betätigungsgliedes geschaltet, wobei der Schaltnocken jeweils gegenüber den Anlenkpunkten der Rückstellfeder in Betätigungsrichtung versetzt ist. Durch diesen zuletzt genannten Versatz ergibt sich auch bei völlig ebener Schaltfeder eine unterschiedliche Vorspannung für die Kontaktbetätigung und für die Rückstellung des Ankers. Der außerhalb des Strompfades liegende Betätigungslappen hat den Vorteil, daß er bei hohen Schaltleistungen weniger stark erwärmt wird als die eigentlichen stromführenden Bereiche der Kontaktfeder. Damit vermeidet man auch die Gefahr einer Wärmedeformation des Betätigungsgliedes. In bevorzugter Ausgestaltung der Kontaktfeder mit der oben bereits erwähnten Rahmenform sind zweckmäßigerweise auch zwei Betätigungslappen von dem Kontaktabschnitt der Kontaktfeder in Richtung auf das Innere von deren Rahmenform abgezweigt und zwar derart, daß ihre Enden jeweils einem Ende eines Rückstellschenkels gegenüberstehen.The contact spring is expediently via at least one actuating tabs branched from it and lying outside the current path each with an associated switch cam of the actuator, the switching cam each opposite the pivot points of the return spring in the direction of actuation is offset. By the latter There is an offset even with a completely flat shift spring different preload for the contact actuation and for resetting the anchor. The one outside the current path lying operating flap has the advantage that it high switching capacities is heated less than the actual ones current-carrying areas of the contact spring. In order to one also avoids the risk of thermal deformation of the actuator. In a preferred embodiment of the contact spring with the frame shape already mentioned above are expedient also two actuating tabs from the contact section the contact spring towards the inside of its frame shape branched in such a way that their ends each one Face the end of a reset leg.

In weiterer Ausgestaltung des Relais weist das Magnetsystem einen im wesentlichen flachen Anker auf, der sich annähernd parallel zu der Schaltfeder erstreckt, an einem Ende über einen Lager-Endabschnitt an einem Kernabschnitt gelagert ist und mit dem anderen, beweglichen Ende über das Betätigungsorgan durch die Rückstellfeder vom Magnetsystem weg vorgespannt ist, wobei der Anker mit seinem Mittelabschnitt an einer zur Lagerachse parallelen Hebellinie eines Grundkörpers schwenkbar aufliegt, so daß aufgrund der Hebelwirkung sein Lager-Endabschnitt in das Lager gedrückt wird. Bei einer solchen Ausgestaltung kann also die Schaltfeder über das Betätigungsglied zusätzlich den Anker in seine Lagerung drücken, damit er auch bei unerregtem Magnetsystem am Kern anliegt, so daß eine zusätzliche Ankerfeder nicht erforderlich ist. Diese Funktion der Ankerhalterung über die Schaltfeder kann bei dem erfindungsgemäßen Relais mit Vorteil auch für einen Umschaltkontakt angewendet werden, da die Haltefunktion durch die wirkungsmäßig getrennte Rückstellfeder erfolgt und eine Beeinträchtigung des Öffnerkontaktes durch die Ankermasse nicht zu befürchten ist. Die genannte Hebellinie als Schwenkpunkt für den Anker wird vorzugsweise durch eine am Grundkörper ausgebildete Abrollkante erzeugt. Denkbar wäre aber auch der umgekehrte Fall, daß ein am Anker ausgebildeter Knick oder Abrollsteg an einer ebenen Fläche des Grundkörpers abrollen könnte. In a further embodiment of the relay, the magnet system an essentially flat anchor that approximates extends parallel to the switching spring, at one end over a Bearing end section is mounted on a core section and with the other, movable end over the actuator biased away from the magnet system by the return spring is, the anchor with its central portion on one to Bearing axis parallel lever line of a base body swiveling rests so that its bearing end section due to the leverage is pressed into the bearing. With one The switch spring can thus be configured via the actuator additionally push the anchor into its storage so that it also bears against the core when the magnet system is not excited, so that an additional anchor spring is not required. This Function of the anchor bracket via the switching spring can be used in the Relay according to the invention advantageously also for a changeover contact be used because the holding function by the functionally separate return spring occurs and an impairment of the break contact due to the armature mass is to be feared. The mentioned lever line as a pivot point for the anchor is preferably by one on the base body trained rolling edge generated. But that would also be conceivable the reverse case, that a kink formed at anchor or Unroll the roll bar on a flat surface of the body could.

Die Erfindung wird nachfolgend an Ausführungsbeispielen anhand der Zeichnung näher erläutert.The invention is explained below using exemplary embodiments the drawing explained in more detail.

Es zeigt

  • Figur 1 ein erfindungsgemäß gestaltetes Relais in Explosionsdarstellung, Figur 2 ein zusammengebautes Relais von Figur 1 im Längsschnitt,
  • Figur 3 eine Schaltfeder mit Federträger und Betätigunsglied in perspektivischer Darstellung,
  • Figur 4 eine perspektivische Ansicht des Magnetsystems von Figur 1,
  • Figur 5 eine perspektivische Ansicht von oben auf den Grundkörper von Figur 1,
  • Figur 6 eine Einzelansicht des Betätigungsgliedes,
  • Figur 7 eine perspektivische Ansicht auf die Unterseite des Grundkörpers mit montierter Kontaktanordnung,
  • Figur 8 und 9 zwei abgewandelte Ausführungsformen der Schaltfeder jeweils in einer zu Figur 3 analogen Darstellung.
    • It shows
  • 1 shows an exploded relay according to the invention, FIG. 2 shows an assembled relay from FIG. 1 in longitudinal section,
  • FIG. 3 shows a switch spring with spring carrier and actuating element in a perspective view,
  • FIG. 4 shows a perspective view of the magnet system from FIG. 1,
  • FIG. 5 shows a perspective view from above of the base body from FIG. 1,
  • FIG. 6 shows a single view of the actuator,
  • FIG. 7 shows a perspective view of the underside of the base body with the contact arrangement mounted,
  • 8 and 9 show two modified embodiments of the switching spring, each in a representation analogous to FIG. 3.

    • Das in den Figuren 1 bis 7 dargestellte Relais besteht gemäß Figur 1 aus einem Grundkörper 1, der an seiner Unterseite eine Kontaktanordnung 2 mit einem Betätigungsglied 3 trägt, sowie einem oberhalb des Grundkörpers angeordneten Magnetsystem 4. Das Relaissystem ist in einem Gehäuse angeordnet, das durch eine Bodenplatte 5 und eine Kappe 6 gebildet ist.The relay shown in Figures 1 to 7 exists according to Figure 1 from a base body 1, the one on its underside Contact arrangement 2 carries with an actuator 3, and a magnet system arranged above the base body 4. The relay system is arranged in a housing that is formed by a base plate 5 and a cap 6.

    Der Grundkörper 1 ist kastenförmig aus Isolierstoff gestaltet und bildet eine Trennwand 11 zwischen dem Magnetsystem 4 und der Kontaktanordnung 2, die lediglich einen Durchbruch 12 für das Betätigungsglied 3 aufweist. Unterhalb der Trennwand 11 ist ein Schaltraum 13 gebildet, der von Seitenwänden 14 des Grundkörpers umgeben ist und der an einer Seite durch eine gestufte Ausbildung der Trennwand 11 in einen Kontaktraum 13a mit größerer Höhe übergeht. In dem Schaltraum erstreckt sich über den größten Teil von dessen Länge eine Schaltfeder 21 annähernd parallel zur Bodenseite des Relais, die durch die Bodenplatte 5 festgelegt ist. Die Schaltfeder 21 ist als ebene Blattfeder geschnitten und bildet eine rahmenförmige Kontaktfeder 22 mit stromführenden Seitenschenkeln 22a, die sich zum freien Ende hin zu einem Kontaktabschnitt 22b vereinigen; auf diesem ist ein beweglicher Kontakt 29 befestigt. Außerdem sind an dem Kontaktabschnitt 22b zwei Betätigungslappen 22c beidseitig innerhalb der Rahmenform freigeschnitten, derart, daß sie in Richtung auf die Einspannstelle weisen.The base body 1 is box-shaped made of insulating material and forms a partition 11 between the magnet system 4 and the contact arrangement 2, which only has an opening 12 for has the actuator 3. Below the partition 11 is a control room 13 formed by the side walls 14 of the Basic body is surrounded and on one side by a staged formation of the partition 11 in a contact space 13a passes with greater height. Extends in the control room A switching spring 21 over most of its length approximately parallel to the bottom of the relay by the Base plate 5 is set. The switching spring 21 is flat Leaf spring cut and forms a frame-shaped contact spring 22 with current-carrying side legs 22a, which are merge towards the free end to form a contact section 22b; on this a movable contact 29 is attached. Moreover are two actuating tabs 22c on the contact portion 22b cut free on both sides within the frame shape, such that they point towards the clamping point.

    Außerdem bildet die Schaltfeder 21 einstückig mit der Kontaktfeder 22 eine gabelförmige Rückstellfeder 23, die im wesentlichen von dem Befestigungsende 21a der Schaltfeder ausgehend von der Kontaktfeder 22 getrennt ist und sich mit zwei Rückstellschenkeln 23a im wesentlichen parallel innerhalb der Rahmenform der Kontaktfeder 22 parallel neben deren Seitenschenkeln 22a erstreckt (siehe auch Figur 3). Die Rückstellfeder 23 bildet mit ihren Rückstellschenkeln 23a eine U-Form, die an die Außenkontur des noch zu beschreibenden Betätigungsgliedes 3 angepaßt ist.In addition, the switching spring 21 forms one piece with the contact spring 22 a fork-shaped return spring 23, which is essentially starting from the attachment end 21a of the switch spring is separated from the contact spring 22 and with two Reset legs 23a substantially parallel within the Frame shape of the contact spring 22 parallel to the side legs 22a extends (see also Figure 3). The return spring 23 forms a U-shape with its reset legs 23a, the to the outer contour of the actuator to be described 3 is adjusted.

    Die Schaltfeder 21 ist an ihrem Befestigungsende 21a auf einem Federträger 24 befestigt, der seinerseits über Befestigungslappen 24a in Steckschächten 14 an gegenüberliegenden Seitenwänden 15 des Grundkörpers 1 verankert sind. Die Befestigungslappen 24a besitzen hakenförmige Konturen zur besseren Verankerung; außerdem ist an dem Federträger 24 eine Anschlußfahne 24b angeformt, die durch einen entsprechenden Durchbruch der Bodenplatte 5 nach außen geführt ist.The switching spring 21 is on a fastening end 21a Spring bracket 24 attached, which in turn via fastening tabs 24a in slots 14 on opposite Side walls 15 of the base body 1 are anchored. The mounting tabs 24a have hook-shaped contours for better Anchoring; there is also a terminal lug on the spring support 24 24b formed by a corresponding Breakthrough of the base plate 5 is guided to the outside.

    Die Kontaktanordnung umfaßt weiterhin einen Öffner-Kontaktträger 25 mit einem Öffnerkontakt 26 sowie einen Schließer-Kontaktträger 27 mit einem Schließerkontakt 28. Beide Kontaktträger sind über Befestigungsabschnitte 25a bzw. 27a in entsprechenden Steckschächten 16 des Grundkörpers 1 verankert. Außerdem besitzen sie jeweils Anschlußfahnen 25b bzw. 27b, die durch die Bodenplatte 5 nach außen geführt sind. Die Kontaktträger 25 und 27 sind so gestaltet und in dem Kontaktraum 13a so angeordnet, daß der bewegliche Kontakt 29 wahlweise mit dem Öffnerkontakt 26 und dem Schließerkontakt 28 zusammenarbeitet.The contact arrangement further comprises an NC contact carrier 25 with an NC contact 26 and one Normally open contact carrier 27 with a normally open contact 28. Both contact carriers are via fastening sections 25a and 27a in corresponding plug-in shafts 16 of the base body 1 anchored. They also each have terminal lugs 25b or 27b, which led through the base plate 5 to the outside are. The contact carriers 25 and 27 are designed and in the contact space 13a arranged so that the movable contact 29 optionally with the normally closed contact 26 and the normally open contact 28 works together.

    Das oberhalb des Grundkörpers angeordnete Magnetsystem 4 besitzt einen Spulenkörper 41 mit einer Wicklung 42, deren Achse parallel zur Bodenseite des Relais liegt. Ein Kernjoch 43 bildet einstückig einen Kernschenkel 43a, der sich axial durch die gesamte Spule erstreckt, und einen Jochschenkel 43b, der sich parallel zum Kernschenkel unterhalb der Spule nahe an der Wicklung bis etwa zur Hälfte der Spulenlänge erstreckt. Ein Anker 44 erstreckt sich mit seinem Hauptteil flach in Verlängerung des Jochschenkels 43b, wobei ein im Querschnitt zurückgesetzter Pol-Endabschnitt 44a einen ebenfalls im Querschnitt verminderten Polabschnitt 43c des Jochschenkels überlappt. Ein Lager-Endabschnitt 44b des Ankers ist zum freien Kernende 43d hin angewinkelt und in einer Tasche 45 eines Spulenkörperflansches 41a so gelagert, daß er auf dem freien Kernende 43d abrollt. Der Spulenkörperflansch 41a umgibt dieses freie Kernende 43d an drei Seiten und sichert den Lager-Endabschnitt 44b des Ankers mit Halterippen 41b auch gegen ein Wegwandern in Axialrichtung der Spule. Im übrigen wird dieser Lager-Endabschnitt 44b des Ankers durch die Rückstellkraft der Rückstellfeder 23 in die Lagerung auf das Kernende 43d gedrückt. Diese Rückstellkraft wirkt auf das bewegliche Ankerende 44c und zieht dieses von der Spule weg nach unten. Dadurch wird der Anker als Hebel bei nicht erregtem Magnetsystem um eine Abrollkante 17 an der Oberseite der Trennwand 11 - bei der Darstellung von Figur 2 entgegen dem Uhrzeigersinn - so verschwenkt, daß der Lager-Endabschnitt 44b des Ankers in die Lagerung vorgespannt wird. Auf diese Weise ist eine eigene Lagerfeder entbehrlich.The magnet system 4 arranged above the base body has a bobbin 41 with a winding 42, the axis is parallel to the bottom of the relay. A core yoke 43 forms in one piece a core leg 43a, which axially extends through the entire coil, and a yoke leg 43b, which is parallel to the core leg below the coil extends close to the winding to about half the coil length. An anchor 44 extends with its main part flat in extension of the yoke leg 43b, one in Cross-section recessed pole end portion 44a also Pole section 43c of the yoke leg that has a reduced cross section overlaps. A bearing end portion 44b of the armature is angled towards the free core end 43d and in a pocket 45 of a bobbin flange 41a mounted so that it rolls on the free core end 43d. The bobbin flange 41a surrounds this free core end 43d on three sides and secures it the bearing end portion 44b of the armature with retaining ribs 41b also against wandering away in the axial direction of the coil. in the the rest of this end portion 44b of the armature is passed through the restoring force of the return spring 23 in the storage pressed the core end 43d. This restoring force acts on the movable armature end 44c and pulls it away from the coil downward. This makes the armature a lever when not energized Magnet system around a rolling edge 17 on the top of the Partition 11 - in the representation of Figure 2 against Clockwise - pivoted so that the bearing end section 44b of the anchor is prestressed in the bearing. To this A separate spring is unnecessary.

    Durch die Anordnung des Jochschenkels 43b unmittelbar an der Wicklung 42 (gegebenenfalls mit einer Isolier-Zwischenlage) wird der Anker 44 bei Erregung des Magnetsystems in Richtung zur Spule angezogen, so daß auch die Schaltfeder 21 über das Betätigungsglied 3 in diese Richtung gezogen wird. Auf diese Weise ergibt sich unterhalb des Jochschenkels 43b der bereits erwähnte große Kontaktraum 13a, während für die Schaltfeder 21 der niedrigere Schaltraum 13 unterhalb des bewegten Ankers ausreicht. Das Betätigungsglied 3, das die Schaltbewegung des Ankers überträgt, besitzt einen Hakenteil 31, der im wesentlichen senkrecht zur Grundebene den Durchbruch 12 der Trennwand 11 durchsetzt und mit seinem hakenförmigen Ende an einem Durchbruch 44d des Ankers 44 eingehängt ist. Über dem freien Ende dieses Hakenteils 31 ist auch in dem Polabschnitt 43c des Polschenkels 43b eine Ausnehmung 43e vorgesehen, die ein vollständiges Anlegen des Ankers an dem Jochschenkel in diesem Bereich ermöglicht. The arrangement of the yoke leg 43b directly on the Winding 42 (optionally with an insulating intermediate layer) the armature 44 moves in the direction when the magnet system is excited attracted to the coil, so that the switching spring 21 via the Actuator 3 is pulled in this direction. To this The way already results below the yoke leg 43b mentioned large contact space 13a, while for the switching spring 21 the lower control room 13 below the moving armature sufficient. The actuator 3, the switching movement of the Anchor transmits has a hook portion 31 which is essentially the opening 12 of the partition perpendicular to the base plane 11 interspersed and with its hook-shaped end on one Breakthrough 44d of the armature 44 is suspended. Over the free The end of this hook part 31 is also in the pole section 43c of the pole leg 43b is provided with a recess 43e which is a complete attachment of the anchor to the yoke leg in this Area allows.

    Außerdem besitzt das Betätigungsglied einen flachen Fußteil 32, der im wesentlichen in der Ebene der Schaltfeder 21 liegt und in diesem Beispiel eine M-förmige Gestalt besitzt. Der Mittelschenkel des M ist dabei an den Hakenteil 31 angebunden. In beiden Außenschenkeln des Fußteiles 32 ist jeweils eine Führungsnut 33 eingeformt, in welche jeweils eine Führungsnase 23b des benachbarten Rückstellschenkels 23a eingreift. An den freien Enden dieser Außenschenkel ist seitlich jeweils ein Betätigungsnocken 34 angeformt, der unterhalb des benachbarten Betätigungslappens 22d der Kontaktfeder liegt und bei einer nach oben gerichteten Bewegung des Betätigungsgliedes 3 die Kontaktfeder in die Schließposition bringt. Durch Abstimmung der Höhen des Scheitelpunktes an den Betätigungsnocken 34 einerseits und der Führungsnuten 33 andererseits kann die Rückstellposition des Ankers bezüglich der Schließposition des Öffnerkontaktes eingestellt werden, auch wenn sich die Rückstellfeder und die Kontaktfeder ursprünglich in einer Ebene befinden. Ansonsten kann aber auch durch eine leichte Biegung der Rückstellschenkel 23a einerseits bzw. der Betätigungslappen 22c andererseits eine entsprechende Position justiert werden.In addition, the actuator has a flat foot part 32, which lies essentially in the plane of the switching spring 21 and has an M-shape in this example. The The middle leg of the M is connected to the hook part 31. Is in both outer legs of the foot part 32 a guide groove 33 is formed, in each of which a guide tab 23b of the adjacent return leg 23a engages. At the free ends of this outer leg is on the side each formed an actuating cam 34 which is below the adjacent actuating tab 22d of the contact spring and with an upward movement of the actuator 3 brings the contact spring into the closed position. By coordinating the heights of the apex on the actuating cams 34 on the one hand and the guide grooves 33 on the other can be the return position of the armature with respect to the Closing position of the normally closed contact can be set, too if the return spring and the contact spring originally are in one level. Otherwise can also by a slight bend in the return leg 23a on the one hand or the actuating tab 22c, on the other hand, a corresponding one Position can be adjusted.

    Zur Erhöhung der Isolation zwischen dem Magnetsystem und der Kontaktanordnung ist an der Trennwand 11 zur Unterseite hin ein Isolierkragen 18 angeformt, der labyrinthartig zwischen die Schenkel des M-förmigen Fußteils 32 des Betätigungsgliedes 3 eingreift und auf diese Weise lange Kriechstrecken schafft.To increase the insulation between the magnet system and the Contact arrangement is on the partition 11 towards the bottom an insulating collar 18 is formed, the labyrinthine between the legs of the M-shaped foot portion 32 of the actuator 3 engages and in this way long creepage distances creates.

    Die Montage des Relais erfolgt in der Weise, daß einerseits das Magnetsystem gemäß Figur 4 vormontiert wird und andererseits die Kontaktanordnung 3 in dem Grundkörper von der Unterseite her verankert wird. Das Magnetsystem gemäß Figur 4 wird mit dem Grundkörper gemäß Figur 5 zusammengesetzt, wobei Spulenanschlußstifte 46 in entsprechende Durchbrüche des Grundkörpers eingesteckt werden. Dann wird von der Unterseite her das Betätigunsglied 3 durch die rahmenförmige Schaltfeder hindurch eingesteckt und in den Anker eingehakt. Zu diesem Zweck wird das Betätigungsglied 3 zunächst in schräger Stellung, wie in Figur 2 gestrichelt mit dem Bezugszeichen 3' dargestellt, nach oben geführt, mit dem Haktenteil 31 in den Durchbruch 12 eingesteckt und dann in die endgültige Position verschwenkt. Durch diese Art der Montage des Betätigungsgliedes ohne Rastverbindungen wird auch jeglicher Kunststoffabrieb vermieden, der die Kontakte gefährden könnte. Durch Aufsetzen der Bodenplatte 5 und der Kappe 6 wird dann das Gehäuse gebildet, welches in bekannter Weise auch abgedichtet werden kann.The relay is installed in such a way that, on the one hand the magnet system according to Figure 4 is pre-assembled and on the other hand the contact arrangement 3 in the base body from the bottom is anchored here. The magnet system according to FIG. 4 is assembled with the base body according to FIG. 5, wherein Coil connector pins 46 in corresponding openings of the Basic body are inserted. Then from the bottom forth the actuator 3 by the frame-shaped switching spring inserted through and hooked into the anchor. To this The purpose of the actuator 3 is initially in an inclined position, as dashed in FIG. 2 with the reference symbol 3 ' shown, led upwards, with the hook part 31 in the Breakthrough 12 inserted and then in the final position pivoted. Through this type of assembly of the actuator Any plastic abrasion is also without snap-in connections avoided, which could endanger the contacts. By The bottom plate 5 and the cap 6 then become the housing formed, which also seals in a known manner can be.

    Die Funktion des Relais ergibt sich bereits aus der beschriebenen Zuordnung der Einzelteile. Bei Erregung des Magnetsystems wird der Anker mit seinem Pol-Endabschnitt 44a an den Polabschnitt 43c des Jochschenkels 43b angezogen, wodurch über das Betätigungsglied 3 die Kontaktfeder 22e nach oben gezogen und der bewegliche Kontakt 29 mit dem Schließerkontakt 28 in Berührung gebracht wird. Bei Abschaltung der Erregung zieht die Rückstellfeder 23 mit ihren Rückstellschenkeln 23a das Betätigungsglied 3 und das Ende 44c des Ankers nach unten, wobei der Anker an der Abrollkante 17 hebelartig kippt und sein Lager-Endabschnitt 44b auch ohne Spulenerregung zu dem Jochende 43d hin vorgespannt wird. The function of the relay already results from that described Allocation of the individual parts. When the magnet system is excited the armature with its pole end portion 44a to the Pole portion 43c of the yoke leg 43b attracted, whereby via the actuator 3, the contact spring 22e upwards pulled and the movable contact 29 with the normally open contact 28 is brought into contact. When the excitation is switched off pulls the return spring 23 with its return legs 23a the actuator 3 and the end 44c of the armature after below, with the armature tilting like a lever on the rolling edge 17 and its bearing end portion 44b also without coil excitation is biased towards the yoke end 43d.

    In den Figuren 8 und 9 sind zwei weitere Ausführungsmöglichkeiten der Schaltfeder und entsprechend des Betätigungsgliedes gezeigt. Dabei besitzt die Schaltfeder 121 gemäß Figur 8 eine Kontaktfeder 122, welche in Abwandlung gegenüber der Kontaktfeder 22 von Figur 3 nunmehr nur einen einzigen, mittig angeordneten Schenkel besitzt, an dessen Ende ein Kontaktabschnitt 122b den beweglichen Kontakt 29 trägt. Die Rückstellfeder 123 ist in diesem Fall durch zwei beiderseits neben den Außenseiten der Kontaktfeder verlaufende Rückstellschenkel 123a gebildet, die an ihren freien Enden jeweils nach außen abgewinkelte Betätigungsnasen 123b besitzen. Entsprechend der abgewandelten Form der Schaltfeder 123 ist auch ein abgewandeltes Betätigungsglied 103 vorgesehen. Dieses besitzt eine U-förmige Gestalt mit zwei Hakenteilen 131 als Außenschenkeln und einem die beiden Hakenteile verbindenden Fußteil 132, welches sich unterhalb der Schaltfeder quer zu dieser erstreckt und sowohl einen mittigen Nockenabschnitt 134 zur Betätigung der Kontaktfeder 122 als auch zwei seitlich angeordnete Führungsnuten 133 zur Aufnahme der erwähnten Führungsnasen 123b aufweist. Die beiden Hakenteile 131 erstrecken sich nach oben bis zum Anker, wobei der Anker natürlich an beiden Seiten entsprechend gestaltet ist, um ein Einhängen der Hakenteile 131 zu gestatten, und wobei auch der Grundkörper in seiner Trennwand anstelle des vorher beschriebenen mittigen Durchbruchs 12 nunmehr zwei außen liegende Durchbrüche aufweisen muß. Der Federträger 24 ist wie im vorherigen Ausführungsbeispiel gestaltet.FIGS. 8 and 9 show two further possible designs the switch spring and corresponding to the actuator shown. The switching spring 121 according to FIG. 8 has a contact spring 122, which is a modification of the Contact spring 22 of Figure 3 now only a single, center has arranged leg, at the end of a contact section 122b carries the movable contact 29. The Return spring 123 is in this case by two on both sides next to the outer sides of the contact spring return legs 123a formed, each at their free ends have outwardly angled actuating lugs 123b. Corresponding the modified form of the switch spring 123 is also a modified actuator 103 is provided. This owns a U-shaped shape with two hook parts 131 as outer legs and one connecting the two hook parts Foot part 132, which extends transversely below the switching spring this extends and both a central cam section 134 for actuating the contact spring 122 and two laterally arranged guide grooves 133 for receiving the mentioned Guide lugs 123b. The two hook parts 131 extend itself up to the anchor, the anchor being natural is appropriately designed on both sides to hang to permit the hook parts 131, and also the Base body in its partition instead of the previously described central opening 12 now two outside Breakthroughs must have. The spring support 24 is as in the previous one Designed embodiment.

    Figur 9 zeigt gegenüber Figur 8 eine weitere Abwandlung. Die Schaltfeder 221 besitzt ähnlich wie die Schaltfeder 121 eine mittige Kontaktfeder 222 mit einem Kontaktabschnitt 222b sowie eine durch außen liegende Rückstellschenkel 223a gebildete Rückstellfeder 223, wobei die Rückstellschenkel jeweils an ihrem Ende eine Führungsnase 223b aufweisen. Das Betätigungsglied 203 ist ähnlich wie das Betätigungsglied 103 U-förmig gestaltet. Es besitzt zwei Hakenteile 231 sowie einen quer verlaufenden Fußteil 232, in welchem Führungsnuten 233 zur Aufnahme der Führungsnasen 223b angeformt sind. Die Betätigung der Kontaktfeder 222 erfolgt jedoch nunmehr nicht unmittelbar an dem Mittelschenkel 222a, sondern über seitlich angeformte Betätigungslappen 222c, die annähernd mit den Rückstellschenkeln 223a fluchten und jeweils auf einem Betätigungsnocken 234 des Betätigungsgliedes 203 aufliegen. Die Funktion für die Anpassung des Ankers und des Grundkörpers an das veränderte Betätigungsglied gilt das gleiche wie zu Figur 8. Im übrigen ergibt sich die Funktion aus der Beschreibung des ersten Ausführungsbeispiels.FIG. 9 shows a further modification compared to FIG. 8. The Switch spring 221 has a similar to switch spring 121 central contact spring 222 with a contact section 222b and a reset leg 223a formed by the outside Return spring 223, with the return leg on have a guide lug 223b at its end. The actuator 203 is similar to the actuator 103 U-shaped designed. It has two hook parts 231 and one across extending foot portion 232, in which guide grooves 233 for Recording the guide tabs 223b are formed. The actuation however, the contact spring 222 is now not carried out immediately on the middle leg 222a, but via laterally formed Actuating flaps 222c, which are approximately with the return legs 223a are aligned and each on an actuating cam 234 of the actuator 203 rest. The Function for the adjustment of the anchor and the base body the modified actuator is the same as for figure 8. Otherwise, the function results from the description of the first embodiment.

    Claims (15)

    1. Electromagnetic relay with a magnet system (4), comprising a reel (41, 42), a stationary core-yoke arrangement (43) and a pivotally mounted armature (44), with furthermore a contact arrangement (2), comprising an elongated spring contact (22; 122; 222) with a movable contact (29) and at least one contact carrier (25, 27) with in each case a fixed contact (26, 28), as well as an actuating member (3; 103; 203) which is coupled on the one hand to a movable end section (44c) of the armature (44) and on the other hand to the spring contact (22; 122; 222), whereby the spring contact is part of a unilaterally fixed switch spring (21; 121; 221), which in addition forms a return spring (23; 123; 223) coupled to the actuating member (3; 103; 203),
         characterised in that the return spring (23; 123; 223) lies at least approximately on a level with the spring contact (22; 122; 222) and in that the actuating member (3; 103; 203), movable perpendicularly to the longitudinal extension of the switch spring (21; 121; 221), is guided by the return spring (23; 123; 223) via at least two linking points (33; 133; 233) along a line parallel to the pivotal axis of the switch spring.
    2. Relay according to claim 1, characterised in that the spring contact (22) displays a frame shape with two current-carrying side legs (22a) which originate from a common fixation point of the switch contact and which meet at the free end in a contact section (22b) carrying the movable contact (29), and in that the return spring (23) forms two return legs (23a) extending along the side legs (22a).
    3. Relay according to claim 2, characterised in that the two return legs (23a) are designed by the fork-shaped configuration of the return spring (23) and in each case extend along the side legs (22a) of the spring contact (22) within their frame shape.
    4. Relay according to claim 1, characterised in that the switch contact (121; 221) forms an elongated, central spring contact (122; 222), along the two sides of which in each case a return leg (123a; 223a) extends.
    5. Relay according to one of claims 2 to 4, characterised in that the two return legs (23a; 123a; 223a) comprise guide catches (23b; 123b; 223b) which are in each case positioned opposite each other and offset obliquely to their longitudinal extension, and which engage aligned guide grooves (33; 133; 233) of the actuating member (3; 103; 203).
    6. Relay according to claim 3 or 5, characterised in that the outer contour of the actuating member (3) is adapted to the fork shape of the return spring (23) and guided between its return legs (23a).
    7. Relay according to one of claims 1 to 6, characterised in that the spring contact (22) is actuated by means of at least one of the actuating tabs (22c; 222c) branched off it and lying outside the current path, in each case via an appropriate switch cam (34; 234) of the actuating member (3; 203).
    8. Relay according to claims 3 and 7, characterised in that the two actuating tabs (22c; 122c; 222c) branch off from the contact section (22b; 122b; 222b) of the spring contact (22; 122; 222) in such a manner that their ends in each case are opposite an end of a return leg (23a; 123a; 223a).
    9. Relay according to one of claims 1 to 8, characterised in that the magnet system comprises an essentially flat armature (44), which extends essentially parallel to the switch spring (21), is supported at one end via a bearing end section (44b) on a core section (43d) and its opposite, movable end section (44c) is biased via the actuating member (3) by means of the return spring (23; 123; 223) away from the magnet system (4), whereby its middle section is pivotally supported on a lever line (17) of a base body (1) parallel to the bearing axis, so that as a result of the lever effect its bearing end section (44b) is pushed into the bearing.
    10. Relay according to claim 9, characterised in that the lever line is defined by an unwinding edge (17) of the base body.
    11. Relay according to claim 9, characterised in that the lever line is defined by an unwinding edge (17) of the armature.
    12. Relay according to one of claims 9 to 11, characterised in that the base body (1) forms a dividing wall (11) between the magnet system (4) and the contact arrangement (2), which comprises merely one opening (12) or openings for the actuating member (3; 103; 203).
    13. Relay according to claim 12, characterised in that the dividing wall (11) forms an insulating collar (18) projecting on the border of the opening (12) towards the underside.
    14. Relay according to claim 11, characterised in that the actuating member displays a U-shaped design, whereby two side hook parts (131; 231) are secured on the armature and a base part (132; 232) connecting the two hook parts engages the switch spring (121; 221).
    15. Relay according to claim 13, characterised in that the actuating member (3) comprises a hook part (31) secured to the armature and a base part (32) engaging the switch spring (21) and which engages the insulating collar (18) in a labyrinthine manner.
    EP97102089A 1996-02-23 1997-02-10 Electromagnetic relay with combined return and contact spring Expired - Lifetime EP0791945B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19606883 1996-02-23
    DE19606883A DE19606883C1 (en) 1996-02-23 1996-02-23 Electromagnetic relay with combined contact- and reset-spring

    Publications (3)

    Publication Number Publication Date
    EP0791945A2 EP0791945A2 (en) 1997-08-27
    EP0791945A3 EP0791945A3 (en) 1998-11-18
    EP0791945B1 true EP0791945B1 (en) 2002-01-09

    Family

    ID=7786274

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97102089A Expired - Lifetime EP0791945B1 (en) 1996-02-23 1997-02-10 Electromagnetic relay with combined return and contact spring

    Country Status (6)

    Country Link
    US (1) US5801608A (en)
    EP (1) EP0791945B1 (en)
    JP (1) JP3902688B2 (en)
    AT (1) ATE211851T1 (en)
    DE (2) DE19606883C1 (en)
    ES (1) ES2167627T3 (en)

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19627845C1 (en) * 1996-07-10 1997-09-18 Siemens Ag Electromagnetic relay assembled at lowest cost and highest precision
    DE19816878C2 (en) * 1998-04-17 2003-11-13 Hengstler Gmbh twin relay
    JP2003151419A (en) * 2001-08-31 2003-05-23 Omron Corp Electromagnetic relay
    DE102006007603B4 (en) * 2006-02-18 2008-04-30 Tyco Electronics Austria Gmbh Relay with reduced leakage current
    CN101984504B (en) * 2010-09-06 2012-11-14 厦门宏发电力电器有限公司 Magnetic latching relay with double flexible pushing connections
    CN202650990U (en) * 2012-07-02 2013-01-02 宁波福特继电器有限公司 Miniature high power magnetic latching relay
    GB201402560D0 (en) * 2014-02-13 2014-04-02 Johnson Electric Sa Improvements in or relating to electrical contactors
    CN104538250B (en) * 2015-02-03 2016-08-24 佛山市川东磁电股份有限公司 A kind of magnetic switch
    CH713442B1 (en) * 2017-02-08 2021-03-31 Elesta Gmbh Ostfildern De Zweigniederlassung Bad Ragaz Relay.
    JP2022011914A (en) * 2020-06-30 2022-01-17 富士通コンポーネント株式会社 Electromagnetic relay
    CN115831671A (en) * 2022-11-04 2023-03-21 昆山国力电子科技股份有限公司 Small-size high-voltage direct-current contactor

    Family Cites Families (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE2627168C3 (en) * 1976-06-16 1983-12-15 Siemens AG, 1000 Berlin und 8000 München Electromagnetic relay with contact spring serving to reset the armature
    DE3238223C2 (en) * 1982-10-15 1986-07-17 Standard Elektrik Lorenz Ag, 7000 Stuttgart Electric miniature compact relay
    US4688010A (en) * 1984-12-22 1987-08-18 Matsushita Electric Works, Ltd. Electromagnetic relay
    US4600909A (en) * 1985-05-20 1986-07-15 Amf Incorporated Bifurcated contact arm in a miniature relay
    US4720694A (en) * 1985-05-22 1988-01-19 Siemens Aktiengesellschaft Electromagnetic relay
    DE3520773C1 (en) * 1985-05-29 1989-07-20 SDS-Relais AG, 8024 Deisenhofen Electromagnetic relay
    DE3644172A1 (en) * 1986-12-23 1988-07-07 Bbc Brown Boveri & Cie ELECTROMAGNETIC SWITCH DRIVE FOR AN ELECTRICAL SWITCHGEAR
    DE3889947T2 (en) * 1987-03-06 1994-11-03 Takamisawa Electric Co Electromagnetic relay with devices for reducing noise.
    JPH0733344Y2 (en) * 1988-12-23 1995-07-31 松下電工株式会社 Electromagnetic relay
    DE3908442A1 (en) * 1989-03-15 1990-10-11 Eberle Gmbh Electromagnetic switching device
    DE9303437U1 (en) * 1993-03-09 1993-08-26 Kosowski, Dimiter, Dr.-Ing., 58509 Lüdenscheid Small electromagnetic relay

    Also Published As

    Publication number Publication date
    DE19606883C1 (en) 1997-04-30
    DE59705943D1 (en) 2002-02-14
    US5801608A (en) 1998-09-01
    ATE211851T1 (en) 2002-01-15
    EP0791945A3 (en) 1998-11-18
    JP3902688B2 (en) 2007-04-11
    JPH09320438A (en) 1997-12-12
    EP0791945A2 (en) 1997-08-27
    ES2167627T3 (en) 2002-05-16

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