EP1643522B1 - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
- Publication number
- EP1643522B1 EP1643522B1 EP05108833.4A EP05108833A EP1643522B1 EP 1643522 B1 EP1643522 B1 EP 1643522B1 EP 05108833 A EP05108833 A EP 05108833A EP 1643522 B1 EP1643522 B1 EP 1643522B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- yoke
- yoke leg
- contact
- base
- 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.)
- Not-in-force
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/24—Parts rotatable or rockable outside coil
- H01H50/28—Parts movable due to bending of a blade spring or reed
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force
Definitions
- the invention relates to an electromagnetic relay with a base in which connection elements are anchored, a magnet system with a coil, a core arranged in the coil, an L-shaped yoke and a plate-shaped armature, wherein a first yoke leg is arranged substantially parallel to the coil axis and a second yoke leg is connected to a first end of the core and wherein the armature is mounted on the first yoke leg and forms a working air gap with the second end of the core, and a contact system with a contact spring fixed to the armature and carrying a movable contact at least one anchored in the base, a fixed contact bearing fixed contact carrier.
- Such relays are characterized by a compact design and are used for example for switching large currents, such as in low-voltage circuits of automobiles and the like.
- it is often possible only with great effort to secure the magnet system securely on the base and adjust the restoring force of the armature return spring.
- a relay which has a reference plane of a coil frame for measuring a position of a switching contact.
- An essential objective of the present invention is therefore to design a relay of the type mentioned above in such a way that the magnet system and the socket can be easily manufactured and joined together with the contact system, with different designs of the coil and the contacts for different applications Relay can be produced without major change in the production.
- the construction of the Relay is a favorable configuration of the contact terminals and the coil terminals are possible in a small space, but the necessary isolation distances between the terminals are guaranteed.
- the relay should be easy to assemble, in particular, the air gap between the armature and the spool core and the restoring force should be easily adjustable,
- the at least one yoke support is made of metal and is connected to a connection element anchored in the base, preferably welded.
- the support is more reliable than in a pure support in the base, the plastic has a different thermal expansion coefficient than, for example, the metal of the magnet system.
- additional yoke supports can not be attached to another connection element in order to avoid a short circuit.
- the return spring for the armature extends between the fork ends of the first yoke leg and can be fixed after mounting the magnet system on the base on the yoke, at the same time the restoring force can be adjusted.
- a set screw For adjusting the restoring force during assembly of the return spring, a set screw can be used, which could be screwed more or less far into the yoke leg in order to approximate the return spring in the desired manner to the outside of the yoke leg and thus bias.
- Such an assembly would be very expensive. Therefore, an advantageous from the yoke leg outwardly projecting, for example embossed, pin provided on the return spring fitted with a hole, moved to reach the desired bias on the pin and fixed in the position thus achieved in an advantageous embodiment of the invention.
- the pin can be deformed by a wobble riveting until the return spring has reached the end position.
- a hole formed in the return spring may have a smaller diameter than the pin, wherein the edge of the hole is interrupted by radially arranged slots to form Sp lanternlappen.
- the return spring is then pressed with the hole on the pin until the desired restoring force is reached. In this position, the Sp lanternlappen spreader on the circumference of the pin and secure the attachment of the return spring on the pin.
- the contact spring is connected via a stranded wire with a spring connection anchored in the base.
- the strand can preferably be arranged below the armature in the form of an arc which extends transversely over the entire width of the armature. In this way, the strand also serves to limit the stroke of the anchor.
- connection elements in particular the contact connection elements, may in a particular embodiment of the invention have fork-shaped split terminal ends.
- the fork ends are then preferably resilient or provided with resilient portions to ensure a desired plug contact force.
- Relay shown has a base 1 made of insulating material, on which a magnet system with a coil 2, a coil disposed inside the core 3, an L-shaped yoke with a first yoke leg 4 and a second yoke leg 5 is arranged.
- a first end 3a of the core is connected to the second yoke leg 5.
- the coil 2 is with its axis substantially perpendicular to the main plane of the base, as well as to its parallel arranged first yoke leg 4.
- a substantially flat armature 6 is disposed between the coil 2 and the base 1; it is mounted at the free end of the first yoke leg 4 and forms with a second end 3b of the core 3 a working air gap.
- the armature 6 is held by an armature spring 7, which serves with a contact portion 7a as a contact spring and with a return portion 7b as a return spring.
- the contact portion 7a is connected to the armature, for example by riveting or otherwise.
- the armature spring 7 has an arc portion 7 c, with which it surrounds the bearing point of the armature on the first yoke leg 4.
- the contact portion 7a forms with the attachment portion at least in the relaxed state an angle greater than 90 °, so that the contact portion is prevented with the armature 6 in the rest state of the magnet system of the core end 3b when the return portion 7b is attached to the outside of the yoke leg 4.
- the yoke leg 4 has an outwardly projecting pin 8, e.g. can be produced by embossing.
- the return leg 7b has a hole 9 whose diameter is slightly smaller than the diameter of the pin 8.
- a plurality of slots radially or cruciform outward which in the example shown four Sp Schwarzlappen 9a be formed.
- the number of slots and expansion lobes could be different from four.
- the base in the present example carries two contact connection elements, namely a spring terminal 11 and a fixed contact terminal 12. All connection elements are anchored by inserting into slots of the base 1 and, if necessary, secured by stakes 13.
- the spring terminal 11 is connected by means of a stranded wire 14 with a spring contact or movable contact 15 at the free end of the contact portion 7a.
- the strand 14 is arcuately below the armature 6; As a result, the stroke of the armature 6 is limited without additional resources.
- the fixed contact terminal 12 carries at its angled free end a fixed contact 16 which forms a switching contact pair with the spring contact 15.
- a yoke support 17 made of sturdy steel wire is also attached, which is parallel to the first yoke leg 4 with respect to the coil. It could also be provided a further support at the other corner of the yoke leg 5; However, this should not be attached to the other contact terminal to avoid a short circuit.
- the socket assembly 8 (see Fig. 2 ) and the coil assembly assembled, and then according to FIG. 4 these two modules combined.
- the socket assembly 8 (see Fig. 2 ) and the coil assembly assembled, and then according to FIG. 4 these two modules combined.
- For anchoring in recesses 1a of the base of the first yoke leg has two fork-shaped projections 4a, which are tooth-shaped with notches 4b.
- the yoke is plugged onto the base, wherein the armature 6 is located between the two extensions 4a and comes to bear on the bearing edge 4c.
- the yoke is pressed so far into the recesses 1a with the projections 4a until the air gap distance between the armature 6 and the core end 3b has the predetermined size.
- the yoke support 17 is welded or soldered to the second core leg 5.
- the return leg 7b For fixing the armature spring 7 and for adjusting the armature restoring force then the return leg 7b the pin 8 pressed, as in FIG. 5 and in the detail of FIG. 6 shown. The return leg is pressed so far with its hole 9 and the spreading tabs 9a on the pin until the desired restoring force is reached. The closer the return leg 7b rests against the yoke leg 4 or the smaller the angle ⁇ ( Fig6 ), the greater the restoring force.
- FIG. 7 Another way of attaching and adjusting the armature spring is in FIG. 7 shown.
- the return leg 7b whose hole in this case has the same diameter as the pin 8, attached to the pin 8, and then the free end of the pin is deformed to a rivet head 8a.
- the pin is getting shorter, and the return leg 7b is pressed ever closer to the yoke leg 4.
- the return leg 7b is fixed.
- connection elements are arranged in two rows, wherein each one coil terminal 10 is aligned with a contact terminal 11 and 12 respectively.
- the two coil terminals are partially disposed below the extensions 4a of the yoke leg 4, without touching them, while the contact terminals are on the opposite side of the base.
- This novel connection configuration (footprint) of the relay enables a particularly compact design.
- the relay is covered in the usual way with a housing cap, not shown.
- FIGS. 8 and 9 a further embodiment of the connecting elements with forked ends is shown.
- a coil connection element 20 is shown with fork ends 20a
- FIG. 9 shows a contact terminal 21 with fork ends 21a.
- the fork ends are slightly elastic, so that they yield resiliently when plugged with the formed between the fork ends plug-in slots 20b and 21b on a contact rail and thus generate the contact force.
- contact ribs 20c and 21c may be formed in each of the plug-in slots.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Description
Die Erfindung betrifft ein elektromagnetisches Relais mit einem Sockel, in welchem Anschlusselemente verankert sind, einem Magnetsystem mit einer Spule, einem in der Spule angeordneten Kern, einem L-förmigen Joch und einem plattenförmigen Anker, wobei ein erster Jochschenkel im Wesentlichen parallel zur Spulenachse angeordnet ist und ein zweiter Jochschenkel mit einem ersten Ende des Kerns verbunden ist und wobei der Anker an dem ersten Jochschenkel gelagert ist und mit dem zweiten Ende des Kerns einen Arbeitsluftspalt bildet, und mit einem Kontaktsystem mit einer an dem Anker befestigten, einen beweglichen Kontakt tragenden Kontaktfeder sowie mindestens einem im Sockel verankerten, einen Festkontakt tragenden Festkontaktträger.The invention relates to an electromagnetic relay with a base in which connection elements are anchored, a magnet system with a coil, a core arranged in the coil, an L-shaped yoke and a plate-shaped armature, wherein a first yoke leg is arranged substantially parallel to the coil axis and a second yoke leg is connected to a first end of the core and wherein the armature is mounted on the first yoke leg and forms a working air gap with the second end of the core, and a contact system with a contact spring fixed to the armature and carrying a movable contact at least one anchored in the base, a fixed contact bearing fixed contact carrier.
Derartige Relais zeichnen sich durch einen kompakten Aufbau aus und dienen beispielsweise zum Schalten großer Ströme, wie etwa in Niedervolt-Stromkreisen von Automobilen und dergleichen. Bei bekannten Relais dieser Art ist es häufig nur mit großem Aufwand möglich, das Magnetsystem sicher auf dem Sockel zu befestigen und die Rückstellkraft der Anker-Rückstellfeder einzustellen.Such relays are characterized by a compact design and are used for example for switching large currents, such as in low-voltage circuits of automobiles and the like. In known relays of this type, it is often possible only with great effort to secure the magnet system securely on the base and adjust the restoring force of the armature return spring.
Aus der
Ein wesentliches Ziel der vorliegenden Erfindung ist es deshalb, ein Relais der eingangs genannten Art so zu gestalten, dass das Magnetsystem und der Sockel mit dem Kontaktsystem auf einfache Weise hergestellt und zusammengefügt werden können, wobei auch unterschiedliche Ausführungen der Spule und der Kontakte für unterschiedliche Anwendungsfälle des Relais ohne große Umstellung in der Fertigung erzeugt werden können. Durch die Konstruktion des Relais soll eine günstige Konfiguration der Kontaktanschlüsse und der Spulenanschlüsse auf kleinstem Raum ermöglicht werden, wobei aber die notwendigen Isolationsabstände zwischen den Anschlüssen gewährleistet sind. Außerdem soll das Relais einfach zu montieren sein, insbesondere sollen auch der Luftspalt zwischen dem Anker und dem Spulenkern sowie die Rückstellkraft auf einfache Weise einstellbar sein,An essential objective of the present invention is therefore to design a relay of the type mentioned above in such a way that the magnet system and the socket can be easily manufactured and joined together with the contact system, with different designs of the coil and the contacts for different applications Relay can be produced without major change in the production. By the construction of the Relay is a favorable configuration of the contact terminals and the coil terminals are possible in a small space, but the necessary isolation distances between the terminals are guaranteed. In addition, the relay should be easy to assemble, in particular, the air gap between the armature and the spool core and the restoring force should be easily adjustable,
Erfindungsgemäß wird dieses Ziel mit einem Relais erreicht, das folgende Merkmale aufweist:
- einen Sockel, in welchem Anschlusselemente verankert sind,
- ein Magnetsystem mit einer Spule, mit einem in der Spule angeordneten Kern, einem L-förmigen Joch und einem plattenförmigen Anker, wobei die Spule mit ihrer Achse und ein dazu parallel liegender erster Jochschenkel im wesentlichen senkrecht zur Hauptebene des Sockels angeordnet sind und ein zweiter Jochschenkel mit dem von dem Sockel entfernten ersten Ende des Kerns verbunden ist und wobei der Anker an dem ersten Jochschenkel gelagert ist und mit einem dem Sockel zugewandten zweiten Ende des Kerns einen Arbeitsluftspalt bildet, und
- ein Kontaktsystem mit einer an dem Anker befestigten, einen beweglichen Kontakt tragenden Kontaktfeder sowie mindestens einem in dem Sockel verankerten, einen Festkontakt tragenden Festkontaktträger, wobei das Relais die folgenden weiteren Merkmale aufweist:
- der erste Jochschenkel ist mit seinem offenen Ende mit zwei gabelförmigen Endabschnitten auf der Oberseite des Sockels abgestützt, während das offene Ende des zweiten Jochschenkels über mindestens eine zu dem ersten Jochschenkel parallele Jochstütze ebenfalls auf der Oberseite des Sockels abgestützt ist, und
- der Anker ist an einer zwischen den beiden Endabschnitten des ersten Jochschenkels ausgebildeten Lagerkante gelagert und mittels einer zwischen den Endabschnitten hindurchgreifenden Rückstellfeder an der von der Spule abgewandten Außenseite des ersten Jochschenkels befestigt.
- a socket in which connection elements are anchored,
- a magnet system with a coil, with a core arranged in the coil, an L-shaped yoke and a plate-shaped armature, wherein the coil are arranged with its axis and a parallel thereto first yoke leg substantially perpendicular to the main plane of the base and a second yoke leg is connected to the first end of the core remote from the base, and wherein the armature is mounted on the first yoke leg and forms a working air gap with a socket-facing second end of the core;
- a contact system comprising a fixed to the armature, a movable contact bearing contact spring and at least one anchored in the base, a fixed contact bearing fixed contact carrier, the relay having the following further features:
- the first yoke leg is supported with its open end with two forked end portions on top of the base, while the open end of the second yoke leg is supported on at least one to the first yoke leg parallel yoke support also on the top of the base, and
- the armature is mounted on a bearing edge formed between the two end portions of the first yoke leg and fastened by means of a return spring extending between the end portions on the outside of the first yoke leg facing away from the coil.
Durch die Abstützung des ersten Jochschenkels auf einer Seite der Sockeloberfläche bzw. durch die Verankerung der Gabelenden dieses ersten Jochschenkels in Vertiefungen der Sockeloberfläche und durch die zusätzliche Abstützung des freien Endes des zweiten Jochschenkels über mindestens eine Jochstütze auf der gegenüberliegenden Seite des Sockels ergibt sich eine sehr stabile Befestigung des Magnetsystems, wobei die Einstellung de Arbeitsluftspalts zwischen dem Spulenkern und dem Anker sehr genau erfolgen kann, bevor die Jochstütze mit dem zweiten Jochschenkel verbunden wird. Anstelle einer einzigen Jochstütze können auch zwei oder sogar noch mehr Jochstützen vorgesehen werden, die dann gegebenenfalls auch an unterschiedlichen Stellen des Sockels abgestützt werden. Vorzugsweise besteht die mindestens eine Jochstütze aus Metall und ist mit einem im Sockel verankerten Anschlusselement verbunden, vorzugsweise verschweisst. Dadurch ist die Abstützung zuverlässiger als bei einer reinen Abstützung im Sockel, dessen Kunststoff einen anderen thermischen Ausdehnungskoeffizienten als beispielsweise das Metall des Magnetsystems hat. Zusätzliche Jochstützen können allerdings nicht an einem weiteren Anschlusselement befestigt werden, um einen Kurzschluss zu vermeiden.By supporting the first yoke leg on one side of the base surface or by anchoring the fork ends of this first yoke leg in recesses of the base surface and by the additional support of the free end of the second yoke leg via at least one yoke support on the opposite side of the base results in a very stable attachment of the magnet system, wherein the setting of the working air gap between the bobbin and the anchor can be done very accurately before the yoke support is connected to the second yoke leg. Instead of a single Jochstütze two or even more Jochstützen can be provided, which are then optionally supported at different locations of the base. Preferably, the at least one yoke support is made of metal and is connected to a connection element anchored in the base, preferably welded. As a result, the support is more reliable than in a pure support in the base, the plastic has a different thermal expansion coefficient than, for example, the metal of the magnet system. However, additional yoke supports can not be attached to another connection element in order to avoid a short circuit.
Die Rückstellfeder für den Anker erstreckt sich zwischen den Gabelenden des ersten Jochschenkels hindurch und kann so nach der Montage des Magnetsystems auf dem Sockel an dem Joch fixiert werden, wobei gleichzeitig die Rückstellkraft eingestellt werden kann.The return spring for the armature extends between the fork ends of the first yoke leg and can be fixed after mounting the magnet system on the base on the yoke, at the same time the restoring force can be adjusted.
Für die Einstellung der Rückstellkraft bei der Montage der Rückstellfeder kann eine Stellschraube venivendet werden, welche mehr oder weniger weit in den Jochschenkel eingeschraubt werden könnte, um die Rückstellfeder in gewünschter Weise an die Außenseite des Jochschenkels anzunähern und so vorzuspannen. Eine solche Montage wäre aber sehr aufwendig. Deshalb ist in einer vorteilhaften Weiterbildung der Erfindung ein von dem Jochschenkel nach außen vorstehender, beispielsweise geprägter, Zapfen vorgesehen, auf den die Rückstellfeder mit einem Loch aufgesteckt, bis zum Erreichen der gewünschten Vorspannung auf dem Zapfen bewegt und in der so erreichten Position fixiert wird. Hierzu kann beispielsweise der Zapfen durch eine Taumelnietung so lange deformiert werden, bis die Rückstellfeder die Endposition erreicht hat. In einer weiteren, besonders vorteilhaften Ausgestaltung kann ein in der Rückstellfeder ausgebildetes Loch einen kleineren Durchmesser als der Zapfen aufweisen, wobei der Rand des Loches durch strahlenförmig angeordnete Schlitze zur Bildung von Spreizlappen unterbrochen ist. Zur Justierung wird dann die Rückstellfeder mit dem Loch auf den Zapfen gepresst, bis die gewünschte Rückstellkraft erreicht ist. In dieser Position verspreizen sich die Spreizlappen auf dem Umfang des Zapfens und sichern die Befestigung der Rückstellfeder auf dem Zapfen.For adjusting the restoring force during assembly of the return spring, a set screw can be used, which could be screwed more or less far into the yoke leg in order to approximate the return spring in the desired manner to the outside of the yoke leg and thus bias. Such an assembly would be very expensive. Therefore, an advantageous from the yoke leg outwardly projecting, for example embossed, pin provided on the return spring fitted with a hole, moved to reach the desired bias on the pin and fixed in the position thus achieved in an advantageous embodiment of the invention. For this purpose, for example, the pin can be deformed by a wobble riveting until the return spring has reached the end position. In a further, particularly advantageous embodiment, a hole formed in the return spring may have a smaller diameter than the pin, wherein the edge of the hole is interrupted by radially arranged slots to form Spreizlappen. To adjust the return spring is then pressed with the hole on the pin until the desired restoring force is reached. In this position, the Spreizlappen spreader on the circumference of the pin and secure the attachment of the return spring on the pin.
In einer vorteilhaften Ausgestaltung der Erfindung ist die Kontaktfeder über eine Litze mit einem in dem Sockel verankerten Federanschluss verbunden. Dabei kann die Litze vorzugsweise unterhalb des Ankers in Form eines Bogens angeordnet sein, der sich quer über die gesamte Breite des Ankers erstreckt. Auf diese Weise dient die Litze zugleich zur Hubbegrenzung des Ankers.In an advantageous embodiment of the invention, the contact spring is connected via a stranded wire with a spring connection anchored in the base. In this case, the strand can preferably be arranged below the armature in the form of an arc which extends transversely over the entire width of the armature. In this way, the strand also serves to limit the stroke of the anchor.
Die Anschlusselemente, insbesondere die Kontaktanschlusselemente, können in einer besonderen Ausgestaltung der Erfindung gabelförmig gespaltene Anschlussenden aufweisen. Damit kann das Relais in einfacher Weise aus schienenförmigen Stromzuführungen aufgesteckt werden. Die Gabelenden sind dann vorzugsweise federnd nachgiebig oder mit federnd nachgiebigen Abschnitten versehen, um eine gewünschte Steckkontaktkraft sicherzustellen.The connection elements, in particular the contact connection elements, may in a particular embodiment of the invention have fork-shaped split terminal ends. Thus, the relay in a simple manner from rail-shaped Power supply to be plugged. The fork ends are then preferably resilient or provided with resilient portions to ensure a desired plug contact force.
Die Erfindung wird nachfolgend an Ausführungsbeispielen anhand der Zeichnung näher erläutert: Es zeigen
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Figur 1 ein erfindungsgemäßes Relais in 3D-Darstellung (ohne Gehäusekappe), -
eine Sockelbaugruppe für das Relais vonFigur 2Figur 1 mit Kontakt- und Spulenanschlusselementen, Anker und Ankerfeder, -
eine Ankerfeder für das Relais vonFigur 3Figur 1 , -
die Sockelbaugruppe und das Magnetsystem des Relais vonFigur 4Figur 1 bei der Montage in Seitenansicht, -
das Relais vonFigur 5Fig 1 in einer seitlichen Schnittansicht, -
eine Detailansicht VI der Befestigung der Ankerfeder ausFigur 6 ,Figur 5 -
eine gegenüberFigur 7 abgewandelte Befestigungsmöglichkeit der Ankerfeder undFigur 6 -
zwei abgewandelte Ausführungsformen der Kontaktanschlusselemente mit gabelförmigen Enden.Figuren 8 und 9
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FIG. 1 a relay according to the invention in 3D representation (without housing cap), -
FIG. 2 a socket assembly for the relay ofFIG. 1 with contact and coil connection elements, armature and armature spring, -
FIG. 3 an armature spring for the relay ofFIG. 1 . -
FIG. 4 the base assembly and the magnetic system of the relay ofFIG. 1 during assembly in side view, -
FIG. 5 the relay ofFig. 1 in a side sectional view, -
FIG. 6 a detailed view VI of the attachment of the armature springFIG. 5 . -
FIG. 7 one oppositeFIG. 6 modified attachment possibility of the armature spring and -
FIGS. 8 and 9 two modified embodiments of the contact terminal elements with forked ends.
Das in den
Der Anker 6 wird durch eine Ankerfeder 7 gehalten, welche mit einem Kontaktabschnitt 7a als Kontaktfeder und mit einem Rückstellabschnitt 7b als Rückstellfeder dient. Der Kontaktabschnitt 7a ist mit dem Anker beispielsweise durch Nieten oder auf andere Weise verbunden. Im Mittelteil besitzt die Ankerfeder 7 einen Bogenabschnitt 7c, mit dem sie die Lagerstelle des Ankers am ersten Jochschenkel 4 umgreift. Der Kontaktabschnitt 7a bildet mit dem Befestigungsabschnitt zumindest im entspannten Zustand einen Winkel größer als 90°, so dass der Kontaktabschnitt mit dem Anker 6 im Ruhezustand des Magnetsystems von dem Kernende 3b abgehalten wird, wenn der Rückstellabschnitt 7b an der Außenseite des Jochschenkels 4 befestigt ist.The
Zur Befestigung der Ankerfeder 7 besitzt der Jochschenkel 4 einen nach außen vorstehenden Zapfen 8, der z.B. durch Prägen erzeugt werden kann. Zur Befestigung auf diesem Zapfen 8 besitzt der der Rückstellschenkel 7b ein Loch 9, dessen Durchmesser geringfügig kleiner ist als der Durchmesser des Zapfens 8. Außerdem erstrecken sich am Umfang des Loches 9 mehrere Schlitze strahlenförmig oder kreuzförmig nach außen, wodurch im gezeigten Beispiel vier Spreizlappen 9a gebildet werden. Natürlich könnte die Zahl der Schlitze und Spreizlappen auch von vier verschieden sein. Wenn der Rückstellschenkel 7b mit Kraft auf den Zapfen 8 aufgesteckt wird, werden die Spreizlappen 9a federnd nach außen gebogen, und sie verhaken sich in dem Umfang des Zapfens 8, so dass der Rückstellschenkel 7b gegen ein Zurückschieben gesichert ist.For fixing the
In dem Sockel sind zwei Spulenanschlusselemente 10 verankert. Außerdem trägt der Sockel im vorliegenden Beispiel zwei Kontakt-Anschlusselemente, nämlich einen Federanschluss 11 und einen Festkontaktanschluss 12. Alle Anschlusselemente sind durch Einstecken in Schlitze des Sockels 1 verankert und, wenn nötig, durch Verkerbungen 13 gesichert. Der Federanschluss 11 ist mittels einer Litze 14 mit einem Federkontakt oder beweglichem Kontakt 15 am freien Ende des Kontaktabschnittes 7a verbunden. Die Litze 14 liegt bogenförmig unterhalb des Ankers 6; dadurch wird der Hub des Ankers 6 ohne zusätzliche Mittel begrenzt. Der Festkontaktanschluss 12 trägt an seinem abgewinkelten freien Ende einen Festkontakt 16, der mit dem Federkontakt 15 ein Schaltkontaktpaar bildet. An dem Federanschluss 11 ist außerdem eine Jochstütze 17 aus stabilem Stahldraht befestigt, die dem ersten Jochschenkel 4 bezüglich der Spule parallel gegenüberliegt. Es könnte auch eine weitere Stütze an der anderen Ecke des Jochschenkels 5 vorgesehen werden; diese dürfte aber nicht an dem anderen Kontaktanschluss befestigt werden, um einen Kurzschluss zu vermeiden.In the base two
Bei der Montage des Relais werden zunächst die Sockelbaugruppe 8 (siehe
Zur Befestigung der Ankerfeder 7 und zur Einstellung der Anker-Rückstellkraft wird dann der Rückstellschenkel 7b auf den Zapfen 8 aufgepresst, wie in
Eine andere Möglichkeit der Befestigung der und Einstellung der Ankerfeder ist in
Wie aus
In den
Claims (8)
- Electromagnetic relay with the following characteristics:- A base (1), in which connecting elements (10, 11, 12, 20,21) are anchored,- A magnet system with a coil (2), a core (3) arranged in the coil, an L-shaped yoke (4, 5) and a plate-shaped armature (6), wherein the coil (2) with its axis and a first yoke leg (4) extending parallel to it are arranged essentially vertical to the main plane of the base (1), and a second yoke leg (5) is connected to the first end (3a) of the core at the remote end of the base (1), and wherein the armature (6) is supported on the first yoke leg (4) and forms, with a second end (3b) of the core facing the base (1), a working air gap, and- A contact system with a contact spring (7a) being fastened to the armature (6) and carrying a movable contact (15) as well as at least one fixed contact carrier (12) fastened to the base and carrying a fixed contact (16).- The first yoke leg (4) is supported on the upper side of the base (1) with its open end having two fork-shaped end sections (4a) while the open end of the second yoke leg (5) is supported on the upper side of the base by means of at least one yoke support (17) with is arranged in parallel to the first yoke leg,- The armature (6) is supported on a support edge (4b) formed between the two end-sections (4a) of the first yoke leg and fastened to the outside facing away from the coil (2) of the first yoke leg (4) by means of a restoring spring (7b) reaching through between the end sections,Characterized in that at least one yoke support (17) is formed by a pin made from metal, which is connected, preferably welded or soldered, on one end to a contact-connection element (11) and on the other end with the second yoke leg (5).
- Relay according to Claim 1, characterized in that the contact spring is formed as part of an armature spring (7) having a contact section (7a) being connected with the armature and forming a contact spring, a bow section (7c) enclosing the support location and a restoring section (7b) fastened to the first yoke leg (4).
- Relay according to Claim 2, characterized in that in the base (1), a spring connection (11) is anchored being connected to the contact section (7a)by means of a strand (14) lying below the armature (6), which extends over the entire width of the armature in the shape of a bow.
- Relay according to one of the Claims 1 to 3, characterized in that at least part of the connecting elements (20, 21) has forked end sections (20a, 21a) for the formation of insertion slots (20b, 21b).
- Relay according to Claim 4, characterized in that the end sections (21a) have elongate recesses (21d) arranged in the vicinity of the insertion slots (21b).
- Relay according to Claim 2, characterized in that on the first yoke leg (4), a pin (8) is formed, which engages in a hole (9) of the restoring section (7b) of the armature spring, and wherein the restoring section (7b) is attachable on the pin (8) is a selectable distance from the surface of the first yoke leg.
- Relay according to Claim 6, characterized in that the distance of the restoring section (7b) relative to the surface of the first yoke leg (4) and therefore the setting of the restoring force is adjustable by deformation of the pin (8) relative to a rivet head (8a).
- Relay according to Claim 6, characterized in that the hole (9) in the restoring section has a smaller diameter than the pin (8) and that on the circumference of the hole, by way of radial slots, there are several expansion tabs (9a) securing the restoring leg (7b) on the pin.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/951,701 US7116193B2 (en) | 2004-09-29 | 2004-09-29 | Electromagnetic relay |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1643522A2 EP1643522A2 (en) | 2006-04-05 |
EP1643522A3 EP1643522A3 (en) | 2007-11-14 |
EP1643522B1 true EP1643522B1 (en) | 2014-01-08 |
Family
ID=35517540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05108833.4A Not-in-force EP1643522B1 (en) | 2004-09-29 | 2005-09-26 | Electromagnetic relay |
Country Status (2)
Country | Link |
---|---|
US (1) | US7116193B2 (en) |
EP (1) | EP1643522B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090323301A1 (en) * | 2008-06-25 | 2009-12-31 | Lear Corporation | Automotive relay system |
CN102723240B (en) * | 2012-06-27 | 2015-07-08 | 宁波天波纬业电器有限公司 | Small high-power relay |
DE102014103247A1 (en) * | 2014-03-11 | 2015-09-17 | Tyco Electronics Austria Gmbh | Electromagnetic relay |
US9754747B1 (en) * | 2016-04-25 | 2017-09-05 | Song Chuan Precision Co., Ltd. | Relay device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2914713A (en) * | 1957-05-21 | 1959-11-24 | Gen Motors Corp | Tensioning device |
DE1129235B (en) * | 1959-10-05 | 1962-05-10 | Harold August Seele | Electromagnetic relay |
DE8325986U1 (en) * | 1983-09-09 | 1983-12-29 | Siemens AG, 1000 Berlin und 8000 München | Electromagnetic relay |
DE3423271A1 (en) * | 1984-06-23 | 1986-01-02 | Robert Bosch Gmbh, 7000 Stuttgart | Electromagnetic relay |
AT389958B (en) * | 1986-03-24 | 1990-02-26 | Uninorm Anstalt | RELAY |
JP2625975B2 (en) * | 1988-10-21 | 1997-07-02 | 株式会社デンソー | Electromagnetic relay |
DE4243841C1 (en) * | 1992-12-23 | 1994-01-27 | Hella Kg Hueck & Co | Electromagnetic relay |
EP0846330B1 (en) * | 1995-08-23 | 1999-02-03 | Siemens Aktiengesellschaft | Electromagnetic relay and its use on a printed circuit board |
JP3593774B2 (en) * | 1996-01-09 | 2004-11-24 | オムロン株式会社 | Electromagnetic relay |
JP2002100274A (en) * | 2000-09-26 | 2002-04-05 | Omron Corp | Electromagnetic relay |
JP2004172036A (en) * | 2002-11-22 | 2004-06-17 | Omron Corp | Electromagnetic relay |
-
2004
- 2004-09-29 US US10/951,701 patent/US7116193B2/en not_active Expired - Fee Related
-
2005
- 2005-09-26 EP EP05108833.4A patent/EP1643522B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1643522A2 (en) | 2006-04-05 |
EP1643522A3 (en) | 2007-11-14 |
US20060066424A1 (en) | 2006-03-30 |
US7116193B2 (en) | 2006-10-03 |
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