EP0872865B1 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
EP0872865B1
EP0872865B1 EP98106774A EP98106774A EP0872865B1 EP 0872865 B1 EP0872865 B1 EP 0872865B1 EP 98106774 A EP98106774 A EP 98106774A EP 98106774 A EP98106774 A EP 98106774A EP 0872865 B1 EP0872865 B1 EP 0872865B1
Authority
EP
European Patent Office
Prior art keywords
armature
core
spring
slide
coil
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
EP98106774A
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German (de)
French (fr)
Other versions
EP0872865A1 (en
Inventor
Ernst Bittermann
Klaus Reiter
Zoran Gmajner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tyco Electronics Austria GmbH
Original Assignee
EH Schrack Components AG
Schrack Components AG
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Filing date
Publication date
Application filed by EH Schrack Components AG, Schrack Components AG filed Critical EH Schrack Components AG
Publication of EP0872865A1 publication Critical patent/EP0872865A1/en
Application granted granted Critical
Publication of EP0872865B1 publication Critical patent/EP0872865B1/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H2050/046—Assembling parts of a relay by using snap mounting techniques

Definitions

  • An electromagnetic relay which is used to switch several independent contact groups is out EP 0 319 478 B1 is known.
  • the transmission of the anchor movement on the contact elements in this relay takes place via a U-shaped slider.
  • This slider is at the top of it Longitudinal leg directly onto the longitudinal anchor leg via snap noses hooked.
  • the slider longitudinal legs have sufficient flexibility to the locking mechanism enable.
  • the flexibility of the longitudinal slide leg appears disadvantageous in terms of mechanical strength of the relay.
  • the storage of the anchor and the attachment the armature spring is only on the coil former. Thereby a flat design can be realized, however at the expense of a rather extensive width.
  • the aim of the invention is automation-friendly design Precautions for a relay, which simplifies assembly the anchor spring and the anchor as well as an improved suspension enable the slide so that this the anchor movement redirects to the contact elements without play. Furthermore applies to the compact design and automated production favoring modular construction of the relay a special Attention.
  • this goal is achieved in that the Anchor with its cross leg unrollable on the free end of the core longitudinal leg is stored and at the end of it Longitudinal leg with the end of the core cross leg a working air gap forms, and that a U-shaped armature spring is provided which is with a first arm on the anchor longitudinal leg attached, approximately in the central section is arranged parallel to the anchor cross leg and with the second arm in a recess between the core and the bobbin is attached parallel to the longitudinal core leg.
  • the recess between the core and the bobbin is in one advantageous embodiment in the form of a separate space molded onto the bobbin. This can be done easily Realize in the manufacture of the bobbin, because the bobbin is preferably made as a molded plastic part is. In addition, the integration of the recess appears in the core much more complex.
  • the second arm of the armature spring which is in the recess is inserted between the bobbin and core with provided with a locking lug, which is embossed directly above is hooked in the core. This is an unintentional one Disassembly of anchor spring including the one firmly connected to it Armature on the one hand and coil body with arranged therein Kern, on the other hand, is not easily possible.
  • the Latch is preferably by punching from the spring plate and then bend so that they are non-positively and positively to the embossing in the core adjusts.
  • the at least one contact spring is parallel arranged to the coil axis, with a U-shaped slide, which is coupled to the anchor via the ends of its side arms is, with its central section, the at least one contact spring actuated, resulting in a compact design in particular for multipole relays.
  • Another advantageous Embodiment of the invention is the coupling of the Slider to the anchor over at the ends of the side arms of the Slider molded snap noses simplified. To do this are on the anchor spring on both sides preferably perpendicular to the longitudinal arm leg Oriented spring tabs molded in one piece, on which the snap noses are hooked.
  • the basic element with pockets for receiving preferably several of a contact spring and counter-contact elements existing contact sets By the side walls of the pockets are the individual contact sets isolated from each other. Furthermore are on the lower edge of the middle section of the slide facing downward Shaped actuators.
  • the number of actuators corresponds to the number of contact sets to be switched. This results in a space saving, since the actuating elements in contrast to a massive design of the slide middle section already housed in the pockets are. It can also be used for isolation the contact sets of sufficiently high side walls of the pockets with the compact design of the relay. Furthermore can the overtravel by the height of the actuators defined the contact springs with respect to the counter-contact elements become.
  • the actuators are simple on the preferably manufactured as a molded plastic part Molded slider.
  • Wear to increase the mechanical strength of the relay furthermore those integrated on the lower edge of the armature cross leg Retaining pins which form-fit the core and thereby secure the anchor against lateral displacement. Furthermore, one is fixed on the upper edge of a bobbin flange molded pair of guide elements Longitudinal anchor leg, which contributes to the stability of the arrangement low manufacturing overhead is increased.
  • Relay results in a very simple assembly process, which is also easy to use or specialized workers.
  • the basic body is preferred with the contact and connection elements Equipped to assemble the magnet system.
  • the anchor spring is preferably attached to the anchor in advance, for example by riveting.
  • the core is preferably first axially into the coil former inserted until the cross leg of the core at one Front side of the bobbin bears. Then the will Arm containing arm of the anchor spring into the recess inserted between the bobbin and core until the latch hooked in the core provided.
  • the slide is from below on the armature spring tab mounted, with which the assembly of the magnet system including the coupling of the slide completed is.
  • the last assembly step is just the magnet system and the base body connected to each other.
  • the relay according to the invention consists in its main components from a magnet system 1, one on the armature spring tabs 52 suspended slider 7 and a base body 6 and contact springs 61, counter-contact elements 62, contact connection elements 63 and winding connection elements 64 ( Figure 1).
  • a pair of upwardly extending angular guide members 23 formed, which the anchor 4 lateral Give hold and thereby increase the shock resistance of the relay.
  • FIG 2 illustrates the features of the invention Magnet system 1, which are used to attach the armature spring 5.
  • the coil body 2 is a flat cuboid free space 21 to recognize (see also Figure 4).
  • This free space 21 takes the arm of the armature spring 5, which the locking lug 51st contains and extends parallel to the armature cross leg 42.
  • the arm of the armature spring 5 equipped with the latch 51 is up to immediately before the through the space 21 in the coil body 2 formed stop inserted, and the latch 51 is in this position in the embossing 33 on the underside of the core 3 hooked in (see also Figure 3).
  • a yoke 34 is integrally formed on the cross leg 32 of the core 3. To reduce stray flux at the working air gap are yoke 34 and pole face 43 T-shaped widened.
  • the armature spring 5 is equipped with a pretension bend, through which the armature 4 is biased towards the yoke 34 is.
  • the suspension mechanism for the slide 7 is shown in FIG. 5 shown.
  • the armature spring 5 At the top of the armature spring 5 are on their free end on both sides perpendicular to the main axis of the armature spring 5 oriented spring tabs 52 formed, the spring tabs 52 first at an obtuse angle and immediately at the end are bent again at an acute angle so that the ends of the spring tab 52 have a prestress (see also also Figure 1).
  • the spring tabs 52 engage under the lower edges the molded at the end of the side arms 71 of the slide 7 Snap tabs 73, causing the stop shoulders 74 of the side arms 71 against the underside of the longitudinal arm 41 are pressed.
  • the side arms 71 of the slide 7 are also on both sides by a on the flank of the longitudinal arm leg 41 molded pair of guide lugs 44 which fix the ends of a side arm 71 reach around a lateral displacement of snap noses 73 and spring tabs 52 to one another to prevent. This is also the detachment of the slide 7 leaning forward. Furthermore, based on FIG the lower edge of the armature cross leg 42 formed retaining pin 45 can be seen which on the outer edges of the anchor cross leg 42 are integrally formed so that they form-fit the core reach around and additionally secure the anchor 4 on the side. Furthermore, on the lower edge of the middle section 72 Actuators 75 attached to the slider 7. The slider 7 is equipped with three actuators 75 since it in this embodiment, a slide 7 for a three-pole relay.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)

Abstract

The relay has a magnetic system (1) provided by a wound coil carrier (2), an axial L-shaped core (3) and a L-shaped armature (4), fitted to an insulating base (6), provided with projecting terminal pins (63,64) on its underside and fixed and movable relay contacts (61,62). The transverse arm of the armature is secured at its free end to the longitudinal arm of the core, the armature supported by a U-shaped armature spring (5) with one arm secured to the longitudinal arm of the armature, its other arm fitting between the coil carrier and the core. The movable contacts are operated via a slider (7) coupled to the armature.

Description

Die Erfindung betrifft ein elektromagnetisches Relais, welches

  • eine Spule mit Spulenkörper und Wicklung,
  • einen L-förmigen Kern, dessen Längsschenkel axial im Spulenkörper angeordnet ist und dessen Querschenkel senkrecht dazu an einer ersten Stirnseite der Spule liegt,
  • einen L-förmigen Anker, der mit einem Ende gegenüber einem ersten Ende des Kerns einen Arbeitsluftspalt bildet und mit seinem anderen Ende am zweiten Ende des Kerns gelagert ist, derart, daß Kern und Anker bei geschlossenem Arbeitsluftspalt annähernd ein Rechteck formen, wobei durch Spule, Kern und Anker ein Magnetsystem gebildet ist,
  • einen Grundkörper aus Isolierstoff, der auf der dem Anker gegenüberliegenden Seite der Spule mit dem Magnetsystem verbunden ist und in welchem mindestens ein feststehendes Kontaktelement und mindestens eine mit diesem zusammenwirkende Kontaktfeder als bewegliches Kontaktelement enthalten sind, wobei die Kontaktelemente jeweils mit Anschlußelementen verbunden sind, und
  • einen die Ankerbewegung auf die mindestens eine Kontaktfeder übertragenden Schieber enthält.
The invention relates to an electromagnetic relay, which
  • a bobbin with bobbin and winding,
  • an L-shaped core, the longitudinal leg of which is arranged axially in the coil body and the transverse leg of which lies perpendicular to it on a first end face of the coil,
  • an L-shaped armature which forms one working air gap with one end opposite to a first end of the core and is mounted with its other end to the second end of the core, such that the core and armature form an approximately rectangle when the working air gap is closed, Core and armature a magnet system is formed
  • a base body made of insulating material, which is connected to the magnet system on the side of the coil opposite the armature and in which at least one fixed contact element and at least one contact spring cooperating with it are contained as a movable contact element, the contact elements being connected to connection elements, and
  • contains a slide transmitting the armature movement to the at least one contact spring.

In DE 1 764 256 A1 ist ein Relais der eingangs genannten Art beschrieben. Die Rückstellfeder für den Anker ist bei diesem Relais zwischen Spulenkörper und der Innenseite des Ankerlängsschenkels angeordnet, wodurch eine zusätzliche Vorrichtung für die Befestigung des Ankers notwendig ist.DE 1 764 256 A1 describes a relay of the type mentioned at the beginning described. The return spring for the anchor is with this Relay between the coil body and the inside of the armature longitudinal leg arranged, creating an additional device is necessary for fastening the anchor.

Ein elektromagnetisches Relais, welches der Schaltung mehrerer, voneinander unabhängiger Kontaktgruppen dient, ist aus EP 0 319 478 B1 bekannt. Die Übertragung der Ankerbewegung auf die Kontaktelemente erfolgt bei diesem Relais über einen U-förmigen Schieber. Dieser Schieber ist am oberen Ende seiner Längsschenkel über Schnappnasen direkt an den Ankerlängsschenkel eingehakt. Dabei weisen die Schieberlängsschenkel eine hinreichende Flexibilität auf, um den Rastmechanismus zu ermöglichen. Die Nachgiebigkeit des Schieberlängsschenkels erscheint nachteilig im Hinblick auf die mechanische Festigkeit des Relais. Die Lagerung des Ankers und die Befestigung der Ankerfeder erfolgt ausschließlich am Spulenkörper. Dadurch läßt sich zwar eine flache Bauform realisieren, allerdings unter Inkaufnahme einer recht ausladenden Breite.An electromagnetic relay, which is used to switch several independent contact groups is out EP 0 319 478 B1 is known. The transmission of the anchor movement on the contact elements in this relay takes place via a U-shaped slider. This slider is at the top of it Longitudinal leg directly onto the longitudinal anchor leg via snap noses hooked. The slider longitudinal legs have sufficient flexibility to the locking mechanism enable. The flexibility of the longitudinal slide leg appears disadvantageous in terms of mechanical strength of the relay. The storage of the anchor and the attachment the armature spring is only on the coil former. Thereby a flat design can be realized, however at the expense of a rather extensive width.

Ziel der Erfindung sind automatisierungsgerechte konstruktive Vorkehrungen für ein Relais, welche eine vereinfachte Montage der Ankerfeder und des Ankers sowie eine verbesserte Einhängung des Schiebers ermöglichen, so daß dieser die Ankerbewegung spielfrei auf die Kontaktelemente umleitet. Des weiteren gilt der kompakten Bauform sowie dem eine automatisierte Fertigung begünstigenden modularen Aufbau des Relais ein besonderes Augenmerk.The aim of the invention is automation-friendly design Precautions for a relay, which simplifies assembly the anchor spring and the anchor as well as an improved suspension enable the slide so that this the anchor movement redirects to the contact elements without play. Furthermore applies to the compact design and automated production favoring modular construction of the relay a special Attention.

Erfindungsgemäß wird dieses Ziel dadurch erreicht, daß der Anker mit seinem Querschenkel abrollbar auf dem freien Ende des Kern-Längsschenkels gelagert ist und am Ende seines Längsschenkels mit dem Ende des Kern-Querschenkels einen Arbeitsluftspalt bildet, und daß eine U-förmige Ankerfeder vorgesehen ist, welche mit einem ersten Arm auf dem AnkerLängsschenkel befestigt ist, im Mittelabschnitt annähernd parallel zum Anker-Querschenkel angeordnet ist und mit dem zweiten Arm in einer Ausnehmung zwischen Kern und Spulenkörper parallel zum Kern-Längsschenkel befestigt ist.According to the invention this goal is achieved in that the Anchor with its cross leg unrollable on the free end of the core longitudinal leg is stored and at the end of it Longitudinal leg with the end of the core cross leg a working air gap forms, and that a U-shaped armature spring is provided which is with a first arm on the anchor longitudinal leg attached, approximately in the central section is arranged parallel to the anchor cross leg and with the second arm in a recess between the core and the bobbin is attached parallel to the longitudinal core leg.

Die Ausnehmung zwischen Kern und Spulenkörper ist in einer vorteilhaften Ausgestaltung in Form eines abgesetzten Freiraums am Spulenkörper angeformt. Dies läßt sich auf einfache Weise bei der Herstellung des Spulenkörpers realisieren, da der Spulenkörper vorzugsweise als Kunststoff-Formteil gefertigt ist. Zudem erscheint die Integration der Ausnehmung in den Kern erheblich aufwendiger. In einer vorteilhaften Weiterbildung ist der zweite Arm der Ankerfeder, der in die Ausnehmung zwischen Spulenkörper und Kern eingesteckt ist, mit einer Rastnase versehen, welche in einer Prägung direkt oberhalb im Kern eingehakt ist. Dadurch ist eine unbeabsichtigte Demontage von Ankerfeder einschließlich des mit ihr fest verbundenen Ankers einerseits und Spulenkörper mit darin angeordnetem Kern andererseits nicht ohne weiteres möglich. Die Rastnase ist vorzugsweise durch Stanzung aus dem Federblech und anschließendem Umbiegen herzustellen, so daß sie sich kraft- und formschlüssig an die im Kern befindliche Prägung anpaßt. Als Vorteil ist in diesem Zusammenhang anzusehen, daß für die Befestigung des Ankers, abgesehen von angeprägten Nietwarzen, durch die Anker und Ankerfeder vorzugsweise miteinander verbunden sind, keine weiteren Befestigungsmittel und Montageschritte notwendig sind.The recess between the core and the bobbin is in one advantageous embodiment in the form of a separate space molded onto the bobbin. This can be done easily Realize in the manufacture of the bobbin, because the bobbin is preferably made as a molded plastic part is. In addition, the integration of the recess appears in the core much more complex. In an advantageous further training is the second arm of the armature spring, which is in the recess is inserted between the bobbin and core with provided with a locking lug, which is embossed directly above is hooked in the core. This is an unintentional one Disassembly of anchor spring including the one firmly connected to it Armature on the one hand and coil body with arranged therein Kern, on the other hand, is not easily possible. The Latch is preferably by punching from the spring plate and then bend so that they are non-positively and positively to the embossing in the core adjusts. In this context, it should be regarded as an advantage that for fastening the anchor, apart from stamped Rivet warts, preferably together with the anchor and anchor spring are connected, no other fasteners and assembly steps are necessary.

Des weiteren ist die mindestens eine Kontaktfeder parallel zur Spulenachse angeordnet, wobei ein U-förmiger Schieber, welcher über die Enden seiner Seitenarme an den Anker gekoppelt ist, mit seinem Mittelabschnitt die mindestens eine Kontaktfeder betätigt, woraus sich eine kompakte Bauweise insbesondere für mehrpolige Relais ergibt. Durch eine weitere vorteilhafte Ausgestaltung der Erfindung wird die Kopplung des Schiebers an den Anker über an den Enden der Seitenarme des Schiebers angeformte Schnappnasen vereinfacht. Dazu sind an der Ankerfeder beidseitig vorzugsweise senkrecht zum Ankerlängsschenkel orientierte Federlappen einstückig angeformt, an welchen die Schnappnasen festgehakt sind. Die freien Enden der Federlappen sind, vorzugsweise durch nochmaliges Umbiegen der Enden, gegenüber den hakenförmigen Schnappnasen vorgespannt, so daß beidseitig jeweils eine Anschlagsschulter des Schieberseitenarms gegen den Ankerlängsschenkel gedrückt ist. Dadurch wird eine spielfreie Mitführung des Schiebers bei der Ankerbewegung erzielt. Der Vorteil besteht ferner darin, daß weder der Anker noch der Schieber nachgiebig sein müssen, so daß sich die mechanische Festigkeit des Relais erhöht. Furthermore, the at least one contact spring is parallel arranged to the coil axis, with a U-shaped slide, which is coupled to the anchor via the ends of its side arms is, with its central section, the at least one contact spring actuated, resulting in a compact design in particular for multipole relays. Another advantageous Embodiment of the invention is the coupling of the Slider to the anchor over at the ends of the side arms of the Slider molded snap noses simplified. To do this are on the anchor spring on both sides preferably perpendicular to the longitudinal arm leg Oriented spring tabs molded in one piece, on which the snap noses are hooked. The free ends of the spring tabs, preferably by bending them again the ends, biased towards the hook-shaped snap noses, so that a stop shoulder of the Slider side arm is pressed against the anchor longitudinal leg. This ensures that the slide is carried without play at the Anchor movement achieved. The advantage is also that neither the anchor nor the slide need to be flexible, so that the mechanical strength of the relay increases.

Ferner ist das Grundelement mit Stecktaschen zur Aufnahme von vorzugsweise mehreren aus einer Kontaktfeder und Gegenkontaktelementen bestehenden Kontaktsätzen ausgestattet. Durch die Seitenwände der Stecktaschen sind die einzelnen Kontaktsätze voneinander isoliert. Des weiteren sind an der Unterkante des Mittelabschnitts des Schiebers nach unten weisende Betätigungselemente angeformt. Die Anzahl der Betätigungselemente entspricht der Anzahl der zu schaltenden Kontaktsätze. Dadurch ergibt sich eine Platzeinsparung, da die Betätigungselemente im Gegensatz zu einer massiven Gestaltung des Schiebermittelabschnittes bereits in den Stecktaschen mit untergebracht sind. Zudem lassen sich auf diese Weise für die Isolation der Kontaktsätze hinreichend hohe Seitenwände der Stecktaschen bei kompakter Bauform des Relais realisieren. Außerdem kann durch die Höhe der Betätigungselemente der Überhub der Kontaktfedern in bezug auf die Gegenkontaktelemente definiert werden. Die Betätigungselemente sind auf einfache Art an den vorzugsweise als Kunststoff-Formteil gefertigten Schieber angeformt.Furthermore, the basic element with pockets for receiving preferably several of a contact spring and counter-contact elements existing contact sets. By the side walls of the pockets are the individual contact sets isolated from each other. Furthermore are on the lower edge of the middle section of the slide facing downward Shaped actuators. The number of actuators corresponds to the number of contact sets to be switched. This results in a space saving, since the actuating elements in contrast to a massive design of the slide middle section already housed in the pockets are. It can also be used for isolation the contact sets of sufficiently high side walls of the pockets with the compact design of the relay. Furthermore can the overtravel by the height of the actuators defined the contact springs with respect to the counter-contact elements become. The actuators are simple on the preferably manufactured as a molded plastic part Molded slider.

Des weiteren sind zur Verbesserung der Führung des Schiebers am Anker im Bereich der Einhängung des Schiebers an die Federlappen beidseitig je zwei Führungsnasen für die Seitenarme des Schiebers vorgesehen. Diese Führungsnasen umgreifen die Seitenarme des Schiebers und sichern diesen somit gegen seitliches Verrutschen, wodurch dem Aushängen des Schiebers von den Federlappen vorgebeugt ist. Durch in den Seitenwänden der Stecktaschen angeformte Aussparungen im Grundkörper ist eine zusätzliche Führung des Schiebermittelabschnitts gegeben. Zusammen mit den bereits genannten Merkmalen wird eine sehr präzise Führung des Schiebers bei der Ankerbewegung realisiert.Furthermore, to improve the guidance of the slide on the anchor in the area where the slider is attached to the spring tabs Two guide lugs on each side for the side arms the slider provided. These lugs encompass the Side arms of the slide and thus secure it against lateral Slipping, causing the slider to unhook the feather lobe is prevented. Through in the side walls of the Slotted pockets in the base body is one given additional guidance of the slide middle section. Together with the features already mentioned will be a very Precise guidance of the slide when the armature moves.

Zur Erhöhung der mechanischen Festigkeit des Relais tragen ferner die an der Unterkante des Ankerquerschenkels integrierten Haltezapfen bei, welche den Kern formschlüssig umfassen und den Anker dadurch gegen seitliches Verrücken sichern. Des weiteren fixiert ein an der Oberkante eines Spulenkörperflansches angeformtes Paar von Führungselementen den Ankerlängsschenkel, wodurch die Stabiltät der Anordnung bei geringem fertigungstechnischen Mehraufwand erhöht ist.Wear to increase the mechanical strength of the relay furthermore those integrated on the lower edge of the armature cross leg Retaining pins which form-fit the core and thereby secure the anchor against lateral displacement. Furthermore, one is fixed on the upper edge of a bobbin flange molded pair of guide elements Longitudinal anchor leg, which contributes to the stability of the arrangement low manufacturing overhead is increased.

Durch die genannten vorteilhaften konstruktiven Merkmale des erfindungsgemäßen Relais ergibt sich ein sehr einfacher Montageablauf, der sich zudem ohne großen Werkzeugaufwand oder spezialisierte Arbeitskräfte bewerkstelligen läßt. Der Grundkörper wird mit den Kontakt- und Anschlußelementen vorzugsweise gleichzeitig zur Montage des Magnetsystems bestückt. Die Ankerfeder wird vorzugsweise vorab am Anker befestigt, beispielsweise durch Nieten. Bei der Montage des Magnetsystems wird vorzugsweise zuerst der Kern axial in den Spulenkörper eingeschoben, bis der Querschenkel des Kerns an einer Stirnseite des Spulenkörpers anliegt. Darauf wird der die Rastnase enthaltende Arm der Ankerfeder in die Ausnehmung zwischen Spulenkörper und Kern eingeführt, bis sich die Rastnase in der im Kern vorgesehenen Prägung festhakt. Zweckmäßigerweise wird dann der Schieber von unten her an den Ankerfederlappen eingehängt, womit die Montage des Magnetsystems einschließlich der Ankopplung des Schiebers abgeschlossen ist. Im letzten Montageschritt werden lediglich das Magnetsystem und der Grundkörper miteinander verbunden.Due to the advantageous structural features mentioned Relay according to the invention results in a very simple assembly process, which is also easy to use or specialized workers. The basic body is preferred with the contact and connection elements Equipped to assemble the magnet system. The anchor spring is preferably attached to the anchor in advance, for example by riveting. When assembling the magnet system the core is preferably first axially into the coil former inserted until the cross leg of the core at one Front side of the bobbin bears. Then the will Arm containing arm of the anchor spring into the recess inserted between the bobbin and core until the latch hooked in the core provided. Conveniently then the slide is from below on the armature spring tab mounted, with which the assembly of the magnet system including the coupling of the slide completed is. The last assembly step is just the magnet system and the base body connected to each other.

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

  • Figur 1 ein erfindungsgemäßes Relais in dreipoliger Ausführung in perspektivischer Darstellung,
  • Figur 2 ein erfindungsgemäß gestaltetes Magnetsystem ohne Wicklung im Längsschnitt,
  • Figur 3 eine Ankerfeder und einen Kern mit erfindungsgemäßen Merkmalen in perspektivischer Darstellung,
  • Figur 4 einen aufgeschnittenen Spulenkörper in perspektivischer Darstellung und
  • Figur 5 einen an einer mit einem Anker verbundenen Ankerfeder eingehängten Schieber in perspektivischer Darstellung.
    • The invention is explained in more detail below using exemplary embodiments with reference to the drawing. It shows
  • 1 shows a relay according to the invention in a three-pole version in a perspective view,
  • FIG. 2 shows a magnet system designed according to the invention without winding in longitudinal section,
  • FIG. 3 shows an armature spring and a core with features according to the invention in a perspective view,
  • Figure 4 shows a cut bobbin in perspective and
  • Figure 5 is a perspective view of a slider attached to an anchor spring connected to an anchor.

    • Das erfindungsgemäße Relais besteht in seinen Hauptkomponenten aus einem Magnetsystem 1, einem an den Ankerfederlappen 52 eingehängten Schieber 7 und einem Grundkörper 6 sowie Kontaktfedern 61, Gegenkontaktelementen 62, Kontaktanschlußelementen 63 und Wicklungsanschlußelementen 64 (Figur 1). Vorzugsweise ist eine hinreichend hohe Vorspannung der Kontaktfeder 61 insbesondere gegenüber dem oberen Gegenkontaktelement 62 vorzusehen, welches als Öffnungskontakt dient, um hohe Abreißkräfte in bezug auf das untere Gegenkontaktelement 62 zu gewährleisten, wodurch einem Festschweißen der Kontakte vorgebeugt wird. Ferner ist an einem Spulenkörperflansch 22 ein Paar von sich nach oben erstreckenden winkelförmigen Führungselementen 23 angeformt, welche dem Anker 4 seitlichen Halt geben und dadurch die Stoßsicherheit des Relais erhöhen.The relay according to the invention consists in its main components from a magnet system 1, one on the armature spring tabs 52 suspended slider 7 and a base body 6 and contact springs 61, counter-contact elements 62, contact connection elements 63 and winding connection elements 64 (Figure 1). Preferably is a sufficiently high preload on the contact spring 61 in particular with respect to the upper counter-contact element 62 to provide, which serves as an opening contact to high Tear-off forces with respect to the lower counter-contact element To ensure 62, causing welding of the contacts is prevented. Furthermore, on a coil former flange 22 a pair of upwardly extending angular guide members 23 formed, which the anchor 4 lateral Give hold and thereby increase the shock resistance of the relay.

    Figur 2 veranschaulicht die erfindungsgemäßen Merkmale des Magnetsystems 1, welche der Befestigung der Ankerfeder 5 dienen. Im Spulenkörper 2 ist ein flacher quaderförmige Freiraum 21 zu erkennen (siehe dazu auch Figur 4). Dieser Freiraum 21 nimmt den Arm der Ankerfeder 5 auf, welcher die Rastnase 51 enthält und sich parallel zum Ankerquerschenkel 42 erstreckt. Der mit der Rastnase 51 ausgestattete Arm der Ankerfeder 5 ist bis unmittelbar vor den durch den Freiraum 21 im Spulenkörper 2 gebildeten Anschlag eingeschoben, und die Rastnase 51 ist in dieser Position in die Prägung 33 an der Unterseite des Kerns 3 eingehakt (siehe dazu auch Figur 3). Ferner ist ein Joch 34 einstückig an den Querschenkel 32 des Kerns 3 angeformt. Zur Verminderung der Streuflüsse am Arbeitsluftspalt sind Joch 34 und Polfläche 43 T-förmig verbreitert ausgeführt. Die Ankerfeder 5 ist mit einem Vorspannknick ausgestattet, durch den der Anker 4 gegenüber dem Joch 34 vorgespannt ist.Figure 2 illustrates the features of the invention Magnet system 1, which are used to attach the armature spring 5. In the coil body 2 is a flat cuboid free space 21 to recognize (see also Figure 4). This free space 21 takes the arm of the armature spring 5, which the locking lug 51st contains and extends parallel to the armature cross leg 42. The arm of the armature spring 5 equipped with the latch 51 is up to immediately before the through the space 21 in the coil body 2 formed stop inserted, and the latch 51 is in this position in the embossing 33 on the underside of the core 3 hooked in (see also Figure 3). Further is a yoke 34 is integrally formed on the cross leg 32 of the core 3. To reduce stray flux at the working air gap are yoke 34 and pole face 43 T-shaped widened. The armature spring 5 is equipped with a pretension bend, through which the armature 4 is biased towards the yoke 34 is.

    Der Einhängemechanismus für den Schieber 7 ist in Figur 5 dargestellt. Im Sinne einer besseren Übersichtlichkeit wird auf die Wiedergabe von Spulenkörper, Kern und Grundkörper verzichtet. An der Oberseite der Ankerfeder 5 sind an ihrem freien Ende beidseitig senkrecht zur Hauptachse der Ankerfeder 5 orientierte Federlappen 52 angeformt, wobei die Federlappen 52 zuerst in stumpfem Winkel und unmittelbar am Ende noch einmal in spitzem Winkel umgebogen sind, so daß die Enden der Federlappen 52 eine Vorspannung aufweisen (siehe dazu auch Figur 1). Die Federlappen 52 greifen unter die Unterkanten der am Ende der Seitenarme 71 des Schiebers 7 angeformten Schnappnasen 73, wodurch die Anschlagsschultern 74 der Seitenarme 71 gegen die Unterseite des Ankerlängsschenkels 41 gedrückt sind. Die Seitenarme 71 des Schiebers 7 sind zudem beidseitig durch ein an der Flanke des Ankerlängsschenkels 41 angeformtes Paar von Führungsnasen 44 fixiert, welche die Enden eines Seitenarme 71 umgreifen, um eine seitliche Verschiebung von Schnappnasen 73 und Federlappen 52 zueinander zu verhindern. Damit wird zugleich der Aushängung des Schiebers 7 vorgebeugt. Des weiteren sind anhand von Figur 5 an der Unterkante des Ankerquerschenkels 42 ausgebildete Haltezapfen 45 zu erkennen, welche an den Außenkanten des Anker-querschenkels 42 angeformt sind, so daß sie den Kern formschlüssig umgreifen und den Anker 4 zusätzlich seitlich sichern. Ferner sind an der Unterkante des Mittelabschnitts 72 Betätigungselemente 75 am Schieber 7 angebracht. Der Schieber 7 ist mit drei Betätigungselementen 75 ausgestattet, da es sich in diesem Ausführungsbeispiel um einen Schieber 7 für ein dreipoliges Relais handelt.The suspension mechanism for the slide 7 is shown in FIG. 5 shown. For the sake of better clarity on the reproduction of the coil body, core and base body waived. At the top of the armature spring 5 are on their free end on both sides perpendicular to the main axis of the armature spring 5 oriented spring tabs 52 formed, the spring tabs 52 first at an obtuse angle and immediately at the end are bent again at an acute angle so that the ends of the spring tab 52 have a prestress (see also also Figure 1). The spring tabs 52 engage under the lower edges the molded at the end of the side arms 71 of the slide 7 Snap tabs 73, causing the stop shoulders 74 of the side arms 71 against the underside of the longitudinal arm 41 are pressed. The side arms 71 of the slide 7 are also on both sides by a on the flank of the longitudinal arm leg 41 molded pair of guide lugs 44 which fix the ends of a side arm 71 reach around a lateral displacement of snap noses 73 and spring tabs 52 to one another to prevent. This is also the detachment of the slide 7 leaning forward. Furthermore, based on FIG the lower edge of the armature cross leg 42 formed retaining pin 45 can be seen which on the outer edges of the anchor cross leg 42 are integrally formed so that they form-fit the core reach around and additionally secure the anchor 4 on the side. Furthermore, on the lower edge of the middle section 72 Actuators 75 attached to the slider 7. The slider 7 is equipped with three actuators 75 since it in this embodiment, a slide 7 for a three-pole relay.

    Aus den hier dargestellten Merkmalen resultiert eine sehr kompakte Bauweise für ein mehrpoliges Relais. Zur vollständigen Kapselung des Relais ist eine Schutzkappe aus Isolierstoff, welche im Rahmen der Ausführungsbeispiele hier nicht explizit dargestellt ist, von oben über die Anordnung, bestehend aus Magnetsystem 1 und Sockel 6 gestülpt.A very much results from the features presented here compact design for a multi-pole relay. For complete Encapsulation of the relay is a protective cap made of insulating material, which is not here in the context of the exemplary embodiments is explicitly shown, consisting of the arrangement above slipped out of magnet system 1 and base 6.

    Claims (9)

    1. Electromagnetic relay, which contains
      a coil with coil former (2) and winding,
      an L-shaped core (3) whose longitudinal limb (31) is arranged axially in the coil former (2) and whose transverse limb (32) lies perpendicular to the latter on a first end side of the coil,
      an L-shaped armature (4) which, with one end opposite a first end of the core (3), forms a working air gap, and is mounted by its other end to the second end of the core (3) in such a way that the core and armature form approximately a rectangle when the working air gap is closed, a magnet system (1) being formed by the coil, core (3) and armature (4),
      a base element (6) made of insulating material, which is connected to the magnet system (1) on the side of the coil lying opposite the armature (4), and which contains at least one fixed contact element (62) and at least one contact spring (61), interacting therewith, as a movable contact element, the contact elements (61, 62) each being connected to connecting elements (63) and
      a slide (7) which transmits the armature movement to the at least one contact spring (61),
      characterized in that the armature (4) is mounted by its transverse limb (42) so that it can roll on the free end of the longitudinal limb (31) of the core and forms, at the end of its longitudinal limb (41) a working air gap with the end of the transverse limb (32) of the core, and in that a U-shaped armature spring (5) is provided, which is attached to a first arm on the longitudinal limb (41) of the armature, is arranged, in a central section, approximately parallel to the transverse limb (42) of the armature, and is attached, by the second arm, in a cut-out between the core (3) and coil former (2) parallel to the longitudinal limb (31) of the core.
    2. Relay according to Claim 1, characterized in that the cut-out is formed on the coil former (2), which has a set-off free space (21) to receive the second spring arm.
    3. Relay according to Claim 1 or 2, characterized in that the armature spring (5) is hooked by means of a latching projection (51), which is formed from the spring plate on the second spring arm, in conjunction with a stamped element (33), which is located directly above that in the core (3) and receives the latching projection (51).
    4. Relay according to one of Claims 1 to 3, characterized in that the at least one contact spring (61) extends between the coil and the base element (6) parallel to the coil axis, and in that a U-shaped slide (7) engages around the magnet system (1) with a central section (72) and two side arms (71), the ends of the side arms (71) being coupled to the armature (4), and the central section (72) acting on the at least one contact spring (61).
    5. Relay according to one of Claims 1 to 4, characterized in that the side arms (71) of the slide (7) are coupled at their ends on each side without play to the longitudinal limb (41) of the armature (4) by means of spring tabs (52) of the armature spring (5) which each press a stop shoulder (74) of the side arm (71) against the longitudinal limb (41) of the armature, hook-shaped snap projections (73) which are formed onto the end of the side arms (71) of the slide (7) being hooked in so that they engage over the prestressed ends of the spring tabs (52).
    6. Relay according to one of Claims 1 to 5, characterized in that activation elements (75) which correspond to the number of contact springs (61) are formed on the lower edge of the central section (72) of the slide (7).
    7. Relay according to one of Claims 1 to 6, characterized in that, in the region where the slide (7) is suspended from the armature spring tabs (52), the armature (4) has, on each side, two guide projections (44) for the side arms (71) of the slide (7).
    8. Relay according to one of Claims 1 to 7, characterized in that securing pins (45), which engage around the core (3) in a positively locking fashion, are formed on the lower edge of the transverse limb (42) of the armature.
    9. Relay according to one of Claims 1 to 8, characterized in that guide elements (23) for the longitudinal limb (41) of the armature are formed on each side of the upper edge of a coil former flange (22).
    EP98106774A 1997-04-16 1998-04-14 Electromagnetic relay Expired - Lifetime EP0872865B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19715913A DE19715913C1 (en) 1997-04-16 1997-04-16 Electromagnetic relay
    DE19715913 1997-04-16

    Publications (2)

    Publication Number Publication Date
    EP0872865A1 EP0872865A1 (en) 1998-10-21
    EP0872865B1 true EP0872865B1 (en) 1999-07-14

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    Application Number Title Priority Date Filing Date
    EP98106774A Expired - Lifetime EP0872865B1 (en) 1997-04-16 1998-04-14 Electromagnetic relay

    Country Status (5)

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    US (1) US5894254A (en)
    EP (1) EP0872865B1 (en)
    JP (1) JPH10321110A (en)
    AT (1) ATE182231T1 (en)
    DE (2) DE19715913C1 (en)

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19715914C1 (en) * 1997-04-16 1998-10-08 Eh Schrack Components Ag Electromechanical relay
    DE19804572A1 (en) * 1997-05-05 1999-08-12 Schrack Components Ag Relay with contact springs
    WO2001024212A1 (en) * 1999-09-28 2001-04-05 Idec Izumi Corporation Relay and method of manufacture thereof
    DE102004060370A1 (en) * 2004-12-15 2006-07-06 Tyco Electronics Austria Gmbh Electromagnetic relay
    DE102012202084A1 (en) * 2012-02-13 2013-08-14 Siemens Aktiengesellschaft Hinged armature bearing for magnetic release
    DE102014103247A1 (en) * 2014-03-11 2015-09-17 Tyco Electronics Austria Gmbh Electromagnetic relay
    EP3051561B1 (en) 2015-01-30 2019-12-25 Tyco Electronics Austria GmbH Magnetic flux assembly for a relay, and relay
    CN106328444B (en) * 2015-06-30 2019-05-10 泰科电子(深圳)有限公司 The magnetic force systems of electromagnetic relay
    CH713442B1 (en) * 2017-02-08 2021-03-31 Elesta Gmbh Ostfildern De Zweigniederlassung Bad Ragaz Relay.
    DE102018109856B3 (en) * 2018-04-24 2019-08-01 Phoenix Contact Gmbh & Co. Kg relay
    CN112885646A (en) * 2021-01-15 2021-06-01 厦门宏发电力电器有限公司 Clapper type bistable magnetic circuit structure and magnetic latching relay

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    GB1228425A (en) * 1967-05-03 1971-04-15
    CH486767A (en) * 1968-02-19 1970-02-28 Siemens Ag Low profile power relays with changeover contact arrangement
    DE1764507B2 (en) * 1968-06-15 1974-12-05 Hartmann & Braun Ag, 6000 Frankfurt Magnet system for flat relays
    DE2617632A1 (en) * 1976-04-22 1977-11-03 Telefonbau & Normalzeit Gmbh Electromagnetic relay for mounting on circuit board - has U-shaped magnetic circuit and has armature inside coil former
    CH674431A5 (en) * 1987-11-30 1990-05-31 Standard Telephon & Radio Ag
    CH677162A5 (en) * 1989-10-30 1991-04-15 Carlo Cavazzi Electromatic Ag
    DE69121385T3 (en) * 1991-02-27 2004-02-12 Takamisawa Electric Co., Ltd. Small electromagnetic relay
    EP0780870A3 (en) * 1995-12-21 1998-10-07 Siemens Aktiengesellschaft Small sized monostable electromagnetic relay

    Also Published As

    Publication number Publication date
    JPH10321110A (en) 1998-12-04
    EP0872865A1 (en) 1998-10-21
    ATE182231T1 (en) 1999-07-15
    US5894254A (en) 1999-04-13
    DE19715913C1 (en) 1998-10-08
    DE59800012D1 (en) 1999-08-19

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