EP1858038B1 - Relay with contact force intensification - Google Patents

Relay with contact force intensification Download PDF

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Publication number
EP1858038B1
EP1858038B1 EP07008491A EP07008491A EP1858038B1 EP 1858038 B1 EP1858038 B1 EP 1858038B1 EP 07008491 A EP07008491 A EP 07008491A EP 07008491 A EP07008491 A EP 07008491A EP 1858038 B1 EP1858038 B1 EP 1858038B1
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EP
European Patent Office
Prior art keywords
relay
contact
contact spring
line
spring
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EP07008491A
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German (de)
French (fr)
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EP1858038A3 (en
EP1858038A2 (en
Inventor
Rainer Schmelz
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Gruner AG
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Gruner AG
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Priority to PL07008491T priority Critical patent/PL1858038T3/en
Publication of EP1858038A2 publication Critical patent/EP1858038A2/en
Publication of EP1858038A3 publication Critical patent/EP1858038A3/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • 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
    • H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit

Definitions

  • the invention relates to a relay with a guided through a relay housing double line, one, first line has at least one movable contact element which closes the circuit of the first line in a first relay position and interrupts in a second relay position, and the other, second line formed continuously is, as well as a relay arrangement with several such relays.
  • Such a relay and such a relay arrangement are for example by the US 2006/0066425 A1 known.
  • the contact element is designed as a contact spring and that the second line is substantially parallel to the contact spring and before the spring surface.
  • the contact force with which the contact spring bears against the associated relay contact is supported by the magnetic repulsion force exerted by the magnetic field of the through-flow line through which the contact spring flows in the opposite direction.
  • This magnetic contact force is greater, the higher the current intensity and the smaller the distance between the continuous line and the contact spring 10.
  • the second line is formed at least in the region of the contact spring as a flat cable and facing with its one surface side of the spring surface of the contact spring.
  • the two lines are preferably flat cables, which are outside the area of the contact spring with their edges facing each other.
  • each of the two lines preferably has connection ends on both sides of the relay housing.
  • the contact spring is coupled for movement with the actuating element of the magnetic drive in the opening and / or closing direction of the contact spring, wherein the actuating element can advantageously be displaceably guided in one, preferably in both lines of the double line.
  • the invention also relates to a relay arrangement having a plurality of, preferably three, relays constructed as above and having a common drive, preferably a magnetic drive, for simultaneously deflecting the contact springs of the plurality of relays.
  • the relay arrangement is used in particular in conjunction with electricity meters to disconnect consumers from the grid, and can be retrofitted as an option to existing electricity meters.
  • the two lines of each double line are connected together in the electricity meter to evaluate the power consumption.
  • the actuator of the common drive in one, preferably guided in two lines each of the plurality of relays displaceable.
  • relay assembly 1 is used to interrupt a three-phase circuit and includes three juxtaposed relay 2 , each with a guided through a common relay housing 3 double line 4 and a common magnetic drive 5 for simultaneously operating the relay. 2
  • the two lines 6, 7 of the double line 4 are, as in Fig. 2 shown, designed as flat cables and each have on both sides of the relay housing 3 connection ends.
  • right flat cable 6 has two edgewise angled relay contacts 8, 9 and a circuit between the two relay contacts 8, 9 closing or interrupting contact spring 10 , which is designed as an electrically conductive leaf or flat spring.
  • the contact spring 10 is fixed at its one end electrically conductive on the relay contact 8, while their other, free end 11 carries a contact button 12 and by means of the magnetic drive 5 is deflected.
  • the contact spring 10 is in the in Fig.
  • the contact spring 10 is double-armed with two parallel free ends 11 and therefore designed with two contact buttons 12, which cooperate with two contact buttons 13 of the relay contact 9.
  • the contact spring 10 is formed as a multilayer leaf spring with a laterally projecting from its plane arc section 14 .
  • Left flat line 7 is formed continuously and has a vertically angled center section 15 , the surface side is substantially parallel to the spring surface 16 of the contact spring 10 and is arranged with the smallest possible distance in front of the spring surface 16. At their terminal ends, the two flat cables 6, 7 facing each other with their edges.
  • the magnetic drive 5 comprises a umpolbare magnetic coil 17 with a magnetic circuit, at the two yoke legs 18, an armature (armature rocker) 19 with a permanent magnet (not shown) is pivotally held.
  • the permanent magnet is arranged between two anchor plates 20 , which in the two Switch positions of the armature 19 each abut the yoke legs 18.
  • the magnet coil 17 and the pivotable between its two switching positions armature 19 form a H-anchor suit.
  • the armature 19 engages with a protruding arm 21 in an opening (not shown) of an actuating element 22 which is guided linearly displaceable in the deflection direction of the contact spring 10 (double arrow 23) .
  • each contact spring 10 is a leaf spring 24 ( Fig. 2 ) fastened from spring steel whose free end engages together with the free end 11 of the contact spring 10 between two projections 25, 26 of the adjusting element 22 and serves to reduce bounce.
  • the actuator 22 takes the projection 25, the contact spring 10 via its free end 11 directly in the opening direction of the relay 1, ie in Fig. 1 to the left, and with the projection 26, the contact spring 10 by means of the leaf spring 24 in the closing direction of the relay 1, ie to the right, with.
  • the contact spring 10 is coupled for movement with the adjusting element 22 in the opening and closing direction.
  • the adjusting element 22 is in each case in guide openings 27 (FIG. Fig. 2 ) of the two lines 6, 7 slidably guided.
  • two continuous flat cables (neutral lines) 28, 29 are guided under the magnetic drive 5 through the relay housing 3.
  • the relay assembly 1 is connected to a three-phase electricity meter 30 and serves to disconnect consumers from the mains.
  • the power meter 30 has for each phase ("PHASE 1 - 3") and for a neutral conductor ("NEUTRAL") each have an input IN and an output OUT , which are connected to each other in the electricity meter 30 to evaluate the power consumption.
  • the lines 6, 7 of the relay arrangement 1 and the two neutral lines 28, 29 are respectively connected to the corresponding terminals IN and OUT of the electricity meter 30.
  • the magnetic field of the magnetic coil 17 is reversed, whereby the armature 19 is pivoted and the adjusting element 22 is displaced.
  • the actuator 22 is shifted by right-handed arm 21 to the right, whereby the contact springs 10 of the relay 2 are deflected by their leaf springs 24 to the right to the contact buttons 12 on the contact buttons 13 of the relay contact 9.
  • the leaf springs 24 of the deflection act the contact springs 10 in the opening direction, resulting in a bounce-reduced closing of the relay 2.
  • the actuator 22 is displaced to the right by the arm 21 pivoted to the left, whereby the contact springs 10 are taken from the actuator 22 and their contact buttons 12 are lifted from the contact buttons 13 of the relay contact 9.

Description

Die Erfindung betrifft ein Relais mit einer durch ein Relaisgehäuse hindurchgeführten Doppelleitung, deren eine, erste Leitung mindestens ein bewegliches Kontaktelement aufweist, welches den Stromkreis der ersten Leitung in einer ersten Relaisposition schließt und in einer zweiten Relaisposition unterbricht, und deren andere, zweite Leitung durchgehend ausgebildet ist, sowie eine Relaisanordnung mit mehreren solcher Relais.The invention relates to a relay with a guided through a relay housing double line, one, first line has at least one movable contact element which closes the circuit of the first line in a first relay position and interrupts in a second relay position, and the other, second line formed continuously is, as well as a relay arrangement with several such relays.

Ein derartiges Relais und eine derartige Relaisanordnung sind beispielsweise durch die US 2006/0066425 A1 bekannt geworden.Such a relay and such a relay arrangement are for example by the US 2006/0066425 A1 known.

Bei diesem bekannten Relais wird ein Stromkreis zwischen zwei elektrischen Relaiskontakten mittels eines als Kontaktbrücke ausgebildeten Brückenelements geschlossen oder unterbrochen, das mittels eines elektromagnetischen Hubantriebs betätigt wird.In this known relay, a circuit between two electrical relay contacts is closed or interrupted by means of a contact bridge formed as a bridge element, which is actuated by means of an electromagnetic lifting drive.

Demgegenüber ist es die Aufgabe der Erfindung, bei einem Relais der eingangs genannten Art die Kontaktkraft des Kontaktelements in der geschlossenen Relaisposition zu erhöhen.In contrast, it is the object of the invention to increase the contact force of the contact element in the closed relay position in a relay of the type mentioned.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Kontaktelement als Kontaktfeder ausgebildet ist und dass die zweite Leitung im Wesentlichen parallel zur Kontaktfeder und vor deren Federfläche verläuft.This object is achieved in that the contact element is designed as a contact spring and that the second line is substantially parallel to the contact spring and before the spring surface.

Werden die beiden Leitungen in entgegengesetzter Richtung von Strom durchflossen, so wird die Kontaktkraft, mit der die Kontaktfeder am zugehörigen Relaiskontakt anliegt, durch die magnetische Abstoßungskraft unterstützt, die vom Magnetfeld der stromdurchflossenen durchgehenden Leitung auf die in Gegenrichtung stromdurchflossene Kontaktfeder ausgeübt wird. Diese magnetische Kontaktkraft ist umso größer, je höher die Stromstärke und je geringer der Abstand der durchgehenden Leitung und der Kontaktfeder 10 ist.If the two lines are traversed by current in the opposite direction, the contact force with which the contact spring bears against the associated relay contact is supported by the magnetic repulsion force exerted by the magnetic field of the through-flow line through which the contact spring flows in the opposite direction. This magnetic contact force is greater, the higher the current intensity and the smaller the distance between the continuous line and the contact spring 10.

Vorzugsweise ist die zweite Leitung zumindest im Bereich der Kontaktfeder als Flachleitung ausgebildet und mit ihrer einen Flächenseite der Federfläche der Kontaktfeder zugewandt. Die beiden Leitungen sind bevorzugt Flachleitungen, die außerhalb des Bereichs der Kontaktfeder mit ihren Kanten einander zugewandt sind. Weiterhin bevorzugt weist jede der beiden Leitungen beidseitig des Relaisgehäuses Anschlussenden auf.Preferably, the second line is formed at least in the region of the contact spring as a flat cable and facing with its one surface side of the spring surface of the contact spring. The two lines are preferably flat cables, which are outside the area of the contact spring with their edges facing each other. Furthermore, each of the two lines preferably has connection ends on both sides of the relay housing.

Vorzugsweise ist zum Auslenken der Kontaktfeder in die jeweilige Relaisposition ein Magnetantrieb mit einer umpolbaren Magnetspule, einem einen Permanentmagneten aufweisenden Anker, der an zwei Jochschenkeln der Magnetspule zwischen zwei Schaltstellungen verschwenkbar gehalten ist, und einem im Wesentlichen parallel zur Spulenachse verschiebbar geführten Stellelement der Kontaktfeder, das mit dem Anker bewegungsgekoppelt ist. Bevorzugt ist dabei die Kontaktfeder mit dem Stellelement des Magnetantriebs in Öffnungs- und/oder Schließrichtung der Kontaktfeder bewegungsgekoppelt, wobei das Stellelement vorteilhaft in einer, vorzugsweise in beiden Leitungen der Doppelleitung verschiebbar geführt sein kann.Preferably, for deflecting the contact spring in the respective relay position, a magnetic drive with a umpolbaren magnetic coil, a permanent magnet having an armature which is pivotally mounted on two yoke legs of the solenoid between two switching positions, and a substantially parallel to the coil axis slidably guided actuator of the contact spring, the with the Anchor is motion coupled. Preferably, the contact spring is coupled for movement with the actuating element of the magnetic drive in the opening and / or closing direction of the contact spring, wherein the actuating element can advantageously be displaceably guided in one, preferably in both lines of the double line.

Die Erfindung betrifft auch eine Relaisanordnung mit mehreren, vorzugsweise drei wie oben ausgebildeten Relais und mit einem gemeinsamen Antrieb, vorzugsweise Magnetantrieb, zum gleichzeitigen Auslenken der Kontaktfedern der mehreren Relais.The invention also relates to a relay arrangement having a plurality of, preferably three, relays constructed as above and having a common drive, preferably a magnetic drive, for simultaneously deflecting the contact springs of the plurality of relays.

Die Relaisanordnung wird insbesondere in Verbindung mit Stromzählern eingesetzt, um Verbraucher vom Netz zu trennen, und kann als Option an vorhandene Stromzähler nachgerüstet werden. Die beiden Leitungen jeder Doppelleitung sind im Stromzähler miteinander verbunden, um den Stromverbrauch auszuwerten.The relay arrangement is used in particular in conjunction with electricity meters to disconnect consumers from the grid, and can be retrofitted as an option to existing electricity meters. The two lines of each double line are connected together in the electricity meter to evaluate the power consumption.

Vorteilhaft ist das Stellelement des gemeinsamen Antriebs in einer, vorzugsweise in beiden Leitungen jedes der mehreren Relais verschiebbar geführt..Advantageously, the actuator of the common drive in one, preferably guided in two lines each of the plurality of relays displaceable.

Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar. Ebenso können die vorstehend genannten und die noch weiter aufgeführten Merkmale erfindungsgemäß jeweils einzeln für sich oder zu mehreren in beliebigen Kombinationen Verwendung finden. Die gezeigte und beschriebene Ausführungsform ist nicht als abschließende Aufzählung zu verstehen, sondern hat vielmehr beispielhaften Charakter für die Schilderung der Erfindung.Further advantages and advantageous embodiments of the subject invention are the description, the drawings and claims removed. Likewise, the features mentioned above and those listed further in accordance with the invention can each be used individually for themselves or for several in any desired combinations. The embodiment shown and described is not to be understood as an exhaustive list, but rather has exemplary character for the description of the invention.

Es zeigt:

Fig. 1
eine Relaisanordnung mit drei erfindungsgemäßen Relais zum Schalten eines dreiphasigen Stroms; und
Fig. 2
eine Detailansicht eines der in Fig. 1 gezeigten Relais.
It shows:
Fig. 1
a relay arrangement with three relays according to the invention for switching a three-phase current; and
Fig. 2
a detail view of one of the Fig. 1 shown relays.

Die in Fig. 1 dargestellte Relaisanordnung 1 dient zum Unterbrechen eines dreiphasigen Stromkreises und umfasst dazu drei nebeneinander angeordnete Relais 2 mit jeweils einer durch ein gemeinsames Relaisgehäuse 3 hindurchgeführten Doppelleitung 4 und einen gemeinsamen Magnetantrieb 5 zum gleichzeitigen Betätigen der Relais 2.In the Fig. 1 illustrated relay assembly 1 is used to interrupt a three-phase circuit and includes three juxtaposed relay 2 , each with a guided through a common relay housing 3 double line 4 and a common magnetic drive 5 for simultaneously operating the relay. 2

Die beiden Leitungen 6, 7 der Doppelleitung 4 sind, wie in Fig. 2 gezeigt, als Flachleitungen ausgebildet und weisen jeweils beidseitig des Relaisgehäuses 3 Anschlussenden auf. Die in Fig. 2 rechte Flachleitung 6 weist zwei hochkant abgewinkelte Relaiskontakte 8, 9 und eine den Stromkreis zwischen den beiden Relaiskontakten 8, 9 schließende oder unterbrechende Kontaktfeder 10 auf, die als elektrisch leitende Blatt- oder Flachfeder ausgebildet ist. Die Kontaktfeder 10 ist an ihrem einen Ende elektrisch leitend am Relaiskontakt 8 befestigt, während ihr anderes, freies Ende 11 einen Kontaktknopf 12 trägt und mittels des Magnetantriebs 5 auslenkbar ist. Die Kontaktfeder 10 ist in der in Fig. 2 gezeigten geschlossenen Relaisposition derart ausgelenkt, dass ihr Kontaktknopf 12 jeweils an einem Kontaktknopf 13 des Relaiskontakts 9 anliegt, und in der offenen Relaisposition (nicht gezeigt) derart ausgelenkt, dass ihr Kontaktknopf 12 vom Kontaktknopf 13 des Relaiskontakts 9 abgehoben ist. Im gezeigten Ausführungsbeispiel ist die Kontaktfeder 10 doppelarmig mit zwei parallelen freien Enden 11 und daher mit zwei Kontaktknöpfen 12 ausgeführt, die mit zwei Kontaktknöpfen 13 des Relaiskontakts 9 zusammenwirken. Die Kontaktfeder 10 ist als mehrschichtige Blattfeder mit einem seitlich aus ihrer Ebene vorstehenden Bogenabschnitt 14 ausgebildet. Die in Fig. 2 linke Flachleitung 7 ist durchgehend ausgebildet und weist einen hochkant abgewinkelten Mittelabschnitt 15 auf, dessen Flächenseite im Wesentlichen parallel zur Federfläche 16 der Kontaktfeder 10 verläuft und mit möglichst geringem Abstand vor der Federfläche 16 angeordnet ist. An ihren Anschlussenden sind die beiden Flachleitungen 6, 7 einander mit ihren Kanten zugewandt.The two lines 6, 7 of the double line 4 are, as in Fig. 2 shown, designed as flat cables and each have on both sides of the relay housing 3 connection ends. In the Fig. 2 right flat cable 6 has two edgewise angled relay contacts 8, 9 and a circuit between the two relay contacts 8, 9 closing or interrupting contact spring 10 , which is designed as an electrically conductive leaf or flat spring. The contact spring 10 is fixed at its one end electrically conductive on the relay contact 8, while their other, free end 11 carries a contact button 12 and by means of the magnetic drive 5 is deflected. The contact spring 10 is in the in Fig. 2 shown closed relay position deflected so that their contact button 12 is applied to a respective contact button 13 of the relay contact 9, and in the open relay position (not shown) deflected so that its contact button 12 is lifted from the contact button 13 of the relay contact 9. In the illustrated embodiment, the contact spring 10 is double-armed with two parallel free ends 11 and therefore designed with two contact buttons 12, which cooperate with two contact buttons 13 of the relay contact 9. The contact spring 10 is formed as a multilayer leaf spring with a laterally projecting from its plane arc section 14 . In the Fig. 2 Left flat line 7 is formed continuously and has a vertically angled center section 15 , the surface side is substantially parallel to the spring surface 16 of the contact spring 10 and is arranged with the smallest possible distance in front of the spring surface 16. At their terminal ends, the two flat cables 6, 7 facing each other with their edges.

Wie in Fig. 1 gezeigt, umfasst der Magnetantrieb 5 eine umpolbare Magnetspule 17 mit einem Magnetkreis, an dessen zwei Jochschenkeln 18 ein Anker (Ankerwippe) 19 mit einem Permanentmagneten (nicht gezeigt) schwenkbar gehalten ist. Der Permanentmagnet ist zwischen zwei Ankerplatten 20 angeordnet, die in den beiden Schaltstellungen des Ankers 19 jeweils an den Jochschenkeln 18 anliegen. Die Magnetspule 17 und der zwischen seinen beiden Schaltstellungen verschwenkbare Anker 19 bilden einen H-Ankeranzug. Der Anker 19 greift mit einem vorstehenden Arm 21 in eine Öffnung (nicht gezeigt) eines Stellelements 22 ein, das in Auslenkrichtung der Kontaktfeder 10 linear verschiebbar (Doppelpfeil 23) geführt ist. D.h., der Anker 19 ist am Stellelement 22 angelenkt. Am freien Enden 11 jeder Kontaktfeder 10 ist eine Blattfeder 24 (Fig. 2) aus Federstahl befestigt, deren freies Ende zusammen mit dem freien Ende 11 der Kontaktfeder 10 zwischen zwei Vorsprünge 25, 26 des Stellelements 22 eingreift und zur Prellreduzierung dient. Das Stellelement 22 nimmt mit dem Vorsprung 25 die Kontaktfeder 10 über ihr freies Ende 11 unmittelbar in Öffnungsrichtung des Relais 1, d.h. in Fig. 1 nach links, und mit dem Vorsprung 26 die Kontaktfeder 10 mittels der Blattfeder 24 in Schließrichtung des Relais 1, d.h. nach rechts, mit. Mit anderen Worten ist die Kontaktfeder 10 mit dem Stellelement 22 in Öffnungs- und Schließrichtung bewegungsgekoppelt. Das Stellelement 22 ist jeweils in Führungsöffnungen 27 (Fig. 2) der beiden Leitungen 6, 7 verschiebbar geführt. Außerdem sind zwei durchgehende Flachleitungen (Nullleitungen) 28, 29 unter dem Magnetantrieb 5 durch das Relaisgehäuse 3 geführt.As in Fig. 1 shown, the magnetic drive 5 comprises a umpolbare magnetic coil 17 with a magnetic circuit, at the two yoke legs 18, an armature (armature rocker) 19 with a permanent magnet (not shown) is pivotally held. The permanent magnet is arranged between two anchor plates 20 , which in the two Switch positions of the armature 19 each abut the yoke legs 18. The magnet coil 17 and the pivotable between its two switching positions armature 19 form a H-anchor suit. The armature 19 engages with a protruding arm 21 in an opening (not shown) of an actuating element 22 which is guided linearly displaceable in the deflection direction of the contact spring 10 (double arrow 23) . That is, the armature 19 is articulated on the adjusting element 22. At the free ends 11 of each contact spring 10 is a leaf spring 24 ( Fig. 2 ) fastened from spring steel whose free end engages together with the free end 11 of the contact spring 10 between two projections 25, 26 of the adjusting element 22 and serves to reduce bounce. The actuator 22 takes the projection 25, the contact spring 10 via its free end 11 directly in the opening direction of the relay 1, ie in Fig. 1 to the left, and with the projection 26, the contact spring 10 by means of the leaf spring 24 in the closing direction of the relay 1, ie to the right, with. In other words, the contact spring 10 is coupled for movement with the adjusting element 22 in the opening and closing direction. The adjusting element 22 is in each case in guide openings 27 (FIG. Fig. 2 ) of the two lines 6, 7 slidably guided. In addition, two continuous flat cables (neutral lines) 28, 29 are guided under the magnetic drive 5 through the relay housing 3.

Die Relaisanordnung 1 ist an einen dreiphasigen Stromzähler 30 angeschlossen und dient dazu, Verbraucher vom Stromnetz zu trennen. Der Stromzähler 30 weist für jede Phase ("PHASE 1 - 3") sowie für einen Nullleiter ("NEUTRAL") jeweils einen Eingang IN und einen Ausgang OUT auf, die im Stromzähler 30 miteinander verbunden sind, um den Stromverbrauch auszuwerten. Die Leitungen 6, 7 der Relaisanordnung 1 und die beiden Nullleitungen 28, 29 sind jeweils mit den entsprechenden Anschlüssen IN bzw. OUT des Stromzählers 30 verbunden.The relay assembly 1 is connected to a three-phase electricity meter 30 and serves to disconnect consumers from the mains. The power meter 30 has for each phase ("PHASE 1 - 3") and for a neutral conductor ("NEUTRAL") each have an input IN and an output OUT , which are connected to each other in the electricity meter 30 to evaluate the power consumption. The lines 6, 7 of the relay arrangement 1 and the two neutral lines 28, 29 are respectively connected to the corresponding terminals IN and OUT of the electricity meter 30.

Zum Schalten der Relaisanordnung 1 wird das Magnetfeld der Magnetspule 17 umgepolt, wodurch der Anker 19 verschwenkt und das Stellelement 22 verschoben wird. In der in Fig. 1 gezeigten geschlossenen Relaisposition ist das Stellelement 22 durch nach rechts geschwenkten Arm 21 nach rechts verschoben, wodurch die Kontaktfedern 10 der Relais 2 über ihre Blattfedern 24 nach rechts bis zur Anlage ihrer Kontaktknöpfe 12 an den Kontaktknöpfen 13 des Relaiskontakts 9 ausgelenkt sind. In der geschlossenen Relaisposition wirken die Blattfedern 24 der Auslenkung der Kontaktfedern 10 in Öffnungsrichtung entgegen, was zu einem prellreduzierten Schließen der Relais 2 führt. In der offenen Relaisposition ist das Stellelement 22 durch den nach rechts geschwenkten Arm 21 nach links verschoben, wodurch die Kontaktfedern 10 vom Stellelement 22 mitgenommen und ihre Kontaktknöpfe 12 von den Kontaktknöpfen 13 des Relaiskontakts 9 abgehoben sind.For switching the relay arrangement 1, the magnetic field of the magnetic coil 17 is reversed, whereby the armature 19 is pivoted and the adjusting element 22 is displaced. In the in Fig. 1 shown closed relay position, the actuator 22 is shifted by right-handed arm 21 to the right, whereby the contact springs 10 of the relay 2 are deflected by their leaf springs 24 to the right to the contact buttons 12 on the contact buttons 13 of the relay contact 9. In the closed relay position, the leaf springs 24 of the deflection act the contact springs 10 in the opening direction, resulting in a bounce-reduced closing of the relay 2. In the open relay position, the actuator 22 is displaced to the right by the arm 21 pivoted to the left, whereby the contact springs 10 are taken from the actuator 22 and their contact buttons 12 are lifted from the contact buttons 13 of the relay contact 9.

In der geschlossenen Relaisposition ist die Kontaktkraft, mit der der Kontaktknopf 12 der Kontaktfeder 10 am Kontaktknopf 13 des Relaiskontakts 9 anliegt, durch die Druckkraft der vom Stellelement 22 zusammengedrückten Blattfedern 24 gegeben sowie bei Stromfluss (Kurzschlussfall) zusätzlich durch die magnetische Abstoßungskraft, die vom Magnetfeld des stromdurchflossenen Mittelabschnitts 15 auf die in Gegenrichtung stromdurchflossene Kontaktfeder 10 ausgeübt wird. Diese magnetische Kontaktkraft ist umso größer, je höher die Stromstärke und je geringer der Abstand zwischen Mittelabschnitt 15 und Kontaktfeder 10 ist.In the closed relay position, the contact force with which the contact button 12 of the contact spring 10 abuts the contact button 13 of the relay contact 9, given by the pressure force of the actuator 22 compressed leaf springs 24 and at current flow (short circuit case) in addition by the magnetic repulsion force from the magnetic field of the current-carrying center section 15 is exerted on the current flowing in the opposite direction of the contact spring 10. This magnetic contact force is greater, the higher the current intensity and the smaller the distance between the central portion 15 and contact spring 10.

Claims (12)

  1. Relay (2) comprising a two-wire line (4) which is guided through a relay housing (3) and the first line (6) of which has at least one movable contact element that closes the electric circuit of the first line (6) in a first relay position and interrupts it in a second relay position, and the other, second line (7) of which is continuous,
    characterized in that
    the contact element is designed as a contact spring (10) and the second line (7) extends substantially parallel to the contact spring (10) and in front of its spring surface (16).
  2. Relay according to claim 1, characterized in that the second line (7) is designed as a flat cable at least in the area of the contact spring (10) and one surface side thereof faces the spring surface (16) of the contact spring (10).
  3. Relay according to claim 1 or 2, characterized in that the two lines (6, 7) are designed as flat cables.
  4. Relay according to claim 3, characterized in that the edges of the two flat cables (6, 7) face each other outside of the area of the contact spring (10).
  5. Relay according to any one of the preceding claims, characterized in that each of the two lines (6, 7) has connection ends on both sides of the relay housing (3).
  6. Relay according to any one of the preceding claims, characterized by a drive, advantageously a magnetic drive (5), for deflecting the contact spring (10) into the respective relay position.
  7. Relay according to claim 6, characterized in that the magnetic drive (5) comprises a pole-reversible magnet coil (17), an armature (19) comprising a permanent magnet and being displaceably held on two yoke legs (18) of the magnet coil (17) between two switching positions, and an actuator element (22) of the contact spring (10) which is displaceably guided substantially parallel to the coil axis and is motionally coupled to the armature (19).
  8. Relay according to claim 7, characterized in that the contact spring (10) is motionally coupled to the actuator element (22) of the magnetic drive (5) in the opening and/or closing direction of the contact spring (10).
  9. Relay according to claim 7 or 8, characterized in that the actuator element (22) of the magnetic drive (5) is displaceably guided in one, advantageously in both lines (6, 7) of the two-wire line (4).
  10. Relay configuration (1) comprising several, advantageously three relays (2) according to any one of the preceding claims, and one common drive, advantageously a magnetic drive (5), for simultaneously deflecting the contact springs (10) of the plurality of relays (2).
  11. Relay configuration according to claim 10, characterized in that the actuator element (22) of the common drive is displaceably guided in one, advantageously in both lines (6, 7) of each of the plurality of relays (2).
  12. Relay configuration according to claim 10 or 11, characterized in that one or more continuous neutral conductors (28, 29) are guided through the relay housing (3).
EP07008491A 2006-05-15 2007-04-26 Relay with contact force intensification Active EP1858038B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07008491T PL1858038T3 (en) 2006-05-15 2007-04-26 Relay with contact force intensification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006022912A DE102006022912A1 (en) 2006-05-15 2006-05-15 Relay with contact force reinforcement

Publications (3)

Publication Number Publication Date
EP1858038A2 EP1858038A2 (en) 2007-11-21
EP1858038A3 EP1858038A3 (en) 2009-06-10
EP1858038B1 true EP1858038B1 (en) 2012-08-29

Family

ID=38331725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07008491A Active EP1858038B1 (en) 2006-05-15 2007-04-26 Relay with contact force intensification

Country Status (3)

Country Link
EP (1) EP1858038B1 (en)
DE (1) DE102006022912A1 (en)
PL (1) PL1858038T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8330564B2 (en) 2010-05-04 2012-12-11 Tyco Electronics Corporation Switching devices configured to control magnetic fields to maintain an electrical connection
JP6732986B2 (en) * 2019-03-22 2020-07-29 富士通コンポーネント株式会社 Electromagnetic relay

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1022625B (en) * 1954-04-09 1958-01-16 Deutsche Bundesbahn Relays, especially for railway safety devices
CH409056A (en) * 1964-06-01 1966-03-15 Standard Telephon & Radio Ag Vacuum switch
DE1185742B (en) * 1962-08-20 1965-01-21 Siemens Ag Contact spring set
US3419828A (en) * 1966-12-13 1968-12-31 Arrow Hart Inc Means proportional to magnetic flux to bias electric switch contacts closed
DE2027335A1 (en) * 1969-11-13 1971-05-19 Porqueddu A Contact arrangement for high currents
SE433687B (en) * 1979-12-21 1984-06-04 Ericsson Telefon Ab L M SPRING GROUP FOR RELE
DE4026425C1 (en) * 1990-08-21 1992-02-27 Siemens Ag, 8000 Muenchen, De
DE10162585C1 (en) * 2001-12-19 2003-04-24 Gruner Ag Electrical relay has auxiliary spring acting on switched contact spring in closed contact position for reducing rebound
US20060066425A1 (en) * 2004-09-29 2006-03-30 Gruner Klaus A Multi-phase electromagnetic relay assembly and motor assembly

Also Published As

Publication number Publication date
EP1858038A3 (en) 2009-06-10
DE102006022912A1 (en) 2007-11-22
PL1858038T3 (en) 2013-01-31
EP1858038A2 (en) 2007-11-21

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