EP1223598A2 - Contact system for electromagnetic relay - Google Patents

Contact system for electromagnetic relay Download PDF

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Publication number
EP1223598A2
EP1223598A2 EP02000523A EP02000523A EP1223598A2 EP 1223598 A2 EP1223598 A2 EP 1223598A2 EP 02000523 A EP02000523 A EP 02000523A EP 02000523 A EP02000523 A EP 02000523A EP 1223598 A2 EP1223598 A2 EP 1223598A2
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EP
European Patent Office
Prior art keywords
contact
movable part
actuator
further contact
actuators
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.)
Granted
Application number
EP02000523A
Other languages
German (de)
French (fr)
Other versions
EP1223598B1 (en
EP1223598A3 (en
Inventor
Johannes Oberndorfer
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.)
Panasonic Electric Works Europe AG
Original Assignee
Matsushita Electric Works Europe AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Europe AG filed Critical Matsushita Electric Works Europe AG
Priority to DK02000523T priority Critical patent/DK1223598T3/en
Priority to SI200230133T priority patent/SI1223598T1/en
Publication of EP1223598A2 publication Critical patent/EP1223598A2/en
Publication of EP1223598A3 publication Critical patent/EP1223598A3/en
Application granted granted Critical
Publication of EP1223598B1 publication Critical patent/EP1223598B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits
    • H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit
    • 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding

Definitions

  • a relay with positively driven contacts with the one in the first part contact system specified in claim 1 is known from DE-A-196 00 314.
  • Such relays with positively driven contacts have the task a circuit to be switched, such as the supply circuit from Machine tools, gates, firing systems or medical devices separate safely.
  • a circuit to be switched such as the supply circuit from Machine tools, gates, firing systems or medical devices separate safely.
  • A is used to detect this error known relay provided break contact, wherein an actuating arrangement ensures that the opener only then in its closed rest position can return when both NO contacts open.
  • the actuating arrangement of the known relay consists of two Components that can be moved parallel to each other, each with lateral projections attack on the moving parts, one of which is driven by the relay armature, while the other is a forced leader is trained.
  • the arrangement only works properly if the two components of the actuation arrangement are precisely coordinated are and with their lateral projections on the one hand take-away of the respective moving parts and, on the other hand, sufficient Let play to take the moving parts through the side Not to hinder projections of the other movable component.
  • the invention is based on the general object, disadvantages, such as they occur in comparable contact systems according to the state of the art, to at least partially eliminate.
  • a more specific object of the invention can be seen in a contact system for an electromagnetic To create relays that perform the same function as that explained above known contact system achieved with a simple structure.
  • the measure of claim 4 is for the functional reliability of Advantage.
  • the contact arrangement comprises two make contacts 10 and 20, one break contact 30 and two actuators 40, 50.
  • the closer 10 consists of a fixed contact 11 with two contact pieces 12, 13 and a connecting part 14 and a contact spring 15 which is attached at one end to a connecting part 16 and carries at its other, free end two contact pieces 17, 18 , which with the contact pieces 12, 13 of the fixed contact 11 work together.
  • the make contact 20 and the break contact 30 are constructed identically.
  • the contact springs 15, 25 of the two normally open contacts 10, 20 are designed as flexure contact springs, so that their contact pieces in the rest position, viewed without an actuator, are at a distance from those of the respective fixed contact 11, 21 .
  • the contact spring 35 of the opener 30 is designed as a lift-off contact spring so that its contact pieces in the rest position, viewed without an actuator, rest on the contact pieces of the fixed contact 31 .
  • the actuator 40 is designed as an approximately U-shaped flat circuit card, the right, downwardly projecting leg 41 of the U-shape having a downwardly open slot 42 which , when the actuator 40 is installed (see FIGS. 2 to 4) the contact spring 15 of the closer 10 engages on both sides.
  • the slot 42 is provided with two mutually facing projections 43, 44 which rest on both sides of the contact spring 15 with little play.
  • the downwardly projecting left leg 45 has a projection 46 which faces the right leg 41 and which, according to FIGS. 3 and 4, bears against the left side surface of the contact spring 35 of the opener 30 .
  • the actuator 50 is essentially identical in construction to the actuator 40 , only the distance between the two legs 51, 55 being smaller from one another.
  • the slot 52 engages around the contact spring 25 of the closer 20, the two projections 53, 54 resting against the side surfaces of the contact spring 25 with little play, while the projection 56 of the left leg 55 lies against the left side surface of the contact spring 35 of the opener 30 .
  • the two actuators 40, 50 arranged close together, with their left end faces which are aligned with each other in the embodiment shown in Figure 2 rest position of a here serve to rest against the armature 60 as a monostable adopted relay.
  • the relay 61 shows the coil 61 together with the coil connections 62 and the core 63 passing through the coil 61 with pole shoes 64 projecting upwards and interacting with the armature 60 .
  • the relay is in the rest position, so that the make contacts 10, 20 are open and the break contact 30 is closed.
  • the armature 60 pivots counterclockwise and exerts a force directed to the right in FIG. 2 on both actuators 40, 50 .
  • the actuators 40 and 50 move into the position shown in FIG. 3, in which the two NO contacts 10, 20 are closed and the NC contact 30 is open.
  • the actuators 40, 50 are designed in such a way that they are positively coupled to the contact springs 15, 25 of the respectively associated normally open contact 10, 20 in both directions.
  • the contact springs 15, 25 are guided into the closed position by the actuators 40, 50 against their spring preload, while the closing contacts 10, 20 are opened by the restoring force of the springs 15 and 25 , respectively.
  • the third contact 30 is designed as an opener. It would also be possible to design this contact as a closer. In this case, whenever one of the two make contacts 10, 20 welds, the third contact 30 would no longer be able to open. This function could also be used to identify a welded condition.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Relay Circuits (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The system has at least two closure elements, further contact and actuator arrangement. Each closure element has its own actuator driven by a relay armature, the movable part of each closure element is positively coupled to the associated actuator in the contact opening direction and both actuators are positively coupled to the movable part of the further contact only in the direction towards the operating position. The system has at least two closure elements (10,20), a further contact (30) and an actuator arrangement with at least two parallel movable components that closes both closure elements and the further contact by moving a relay armature into its operating position and opens both closure elements by returning the armature to its rest position, but prevents restoration of the further contact if one closure element does not open. Each closure element has its own actuator (40,50) driven by the relay armature, the movable part of each closure element is positively coupled to the associated actuator in the contact opening direction and both actuators are positively coupled to the movable part (35) of the further contact only in the direction towards the operating position.

Description

Ein Relais mit zwangsgeführten Kontakten mit dem im ersten Teil des Anspruchs 1 angegebenen Kontaktsystem ist aus DE-A-196 00 314 bekannt.A relay with positively driven contacts with the one in the first part contact system specified in claim 1 is known from DE-A-196 00 314.

Derartige Relais mit zwangsgeführten Kontakten haben die Aufgabe, einen zu schaltenden Stromkreis, etwa den Versorgungsstromkreis von Werkzeugmaschinen, Toren, Feuerungsanlagen oder medizinischen Geräten sicher zu trennen. Dazu werden die bei dem bekannten Relais vorhandenen beiden Schließer in dem zu schaltenden Stromkreis mit den Kontakten eines zweiten Relais in Serie angeordnet. Kann einer der Schließer, etwa infolge Kontaktverschweißung, nicht öffnen, so bleibt der zweite Schließer immer noch funktionsfähig und kann den Stromkreis immer noch unterbrechen. Zur Erkennung dieses Fehlers dient ein bei dem bekannten Relais vorgesehener Öffner, wobei eine Betätigungsanordnung dafür sorgt, daß der Öffner nur dann in seine geschlossene Ruhestellung zurückkehren kann, wenn beide Schließer öffnen.Such relays with positively driven contacts have the task a circuit to be switched, such as the supply circuit from Machine tools, gates, firing systems or medical devices separate safely. For this, the existing ones in the known relay two NO contacts in the circuit to be switched with the contacts a second relay arranged in series. Can one of the closers for example due to contact welding, do not open, so the second one remains Normally open contact still functional and can always the circuit still interrupt. A is used to detect this error known relay provided break contact, wherein an actuating arrangement ensures that the opener only then in its closed rest position can return when both NO contacts open.

Die Betätigungsanordnung des bekannten Relais besteht aus zwei parallel zueinander bewegbaren Bauteilen, die jeweils mit seitlichen Vorsprüngen an den bewegbaren Teilen angreifen, und von denen der eine vom Relaisanker angetrieben wird, während der andere als Zwangsführer ausgebildet ist. Die Anordnung arbeitet nur dann ordnungsgemäß, wenn die beiden Bauteile der Betätigungsanordnung exakt aufeinander abgestimmt sind und mit ihren seitlichen Vorsprüngen einerseits eine Mitnahme der jeweiligen bewegbaren Teile sicherstellen und andererseits genügend Spiel lassen, um die Mitnahme der bewegbaren Teile durch die seitlichen Vorsprünge des jeweils anderen bewegbaren Bauteils nicht zu behindern.The actuating arrangement of the known relay consists of two Components that can be moved parallel to each other, each with lateral projections attack on the moving parts, one of which is driven by the relay armature, while the other is a forced leader is trained. The arrangement only works properly if the two components of the actuation arrangement are precisely coordinated are and with their lateral projections on the one hand take-away of the respective moving parts and, on the other hand, sufficient Let play to take the moving parts through the side Not to hinder projections of the other movable component.

Der Erfindung liegt die generelle Aufgabe zugrunde, Nachteile, wie sie bei vergleichbaren Kontaktsystemen nach dem Stand der Technik auftreten, mindestens teilweise zu beseitigen. Eine speziellere Aufgabe der Erfindung kann darin gesehen werden, ein Kontaktsystem für ein elektromagnetisches Relais zu schaffen, das die gleiche Funktion wie das oben erläuterte bekannte Kontaktsystem mit einfacherem Aufbau erreicht.The invention is based on the general object, disadvantages, such as they occur in comparable contact systems according to the state of the art, to at least partially eliminate. A more specific object of the invention can be seen in a contact system for an electromagnetic To create relays that perform the same function as that explained above known contact system achieved with a simple structure.

Die erfindungsgemäße Lösung dieser Aufgabe ist im Anspruch 1 gekennzeichnet. Danach sind wenigstens zwei in ihrer Funktion gleiche Betätiger vorgesehen, die jeweils nur mit einem Schließer und dem gleichen Öffner zusammenarbeiten. Jeder einzelne Betätiger braucht auf den anderen nicht-zugeordneten Schließer keine Rücksicht zu nehmen, so daß seine Form weniger kritisch ist als beim Stand der Technik. Daraus resultieren größere Toleranzfreundlichkeit und höhere Funktionssicherheit.The solution to this problem according to the invention is characterized in claim 1. According to this, at least two actuators are the same in their function provided, each with only one closer and the same Collaborators work together. Every single actuator needs on the other unallocated normally open no consideration, so its Form is less critical than in the prior art. Result from it Greater tolerance friendliness and higher functional reliability.

Die Weiterbildung der Erfindung nach Anspruch 2 führt zu einer weiteren Vereinfachung insofern, als zusätzliche Einrichtungen zur Rückstellung der Betätiger nicht erforderlich sind.The development of the invention according to claim 2 leads to another Simplification in that additional provisioning facilities the actuator is not required.

In der Ausgestaltung der Erfindung nach Anspruch 3 ergibt sich eine kompakte und leichte Gestaltung der Betätigungsanordnung.In the embodiment of the invention according to claim 3 there is a compact and light design of the actuation arrangement.

Die Maßnahme des Anspruchs 4 ist für die Funktionssicherheit von Vorteil.The measure of claim 4 is for the functional reliability of Advantage.

Ein bevorzugtes Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnungen näher erläutert. Darin zeigt

Figur 1
das Kontaktsystem eines elektromagnetischen Relais mit herausgenommenen Betätigern,
Figur 2
das gleiche Kontaktsystem mit eingebauten Betätigern in Ruhestellung des Relais, wobei zur Verdeutlichung auch Spule, Kern und Anker des Relais dargestellt sind,
Figur 3
das Kontaktsystem in Arbeitsstellung des Relais, und
Figur 4
das Kontaktsystem in Ruhestellung des Relais, wobei einer der Schließer infolge Verschweißung nicht geöffnet und der zwangsgeführte Öffner nicht geschlossen hat.
A preferred embodiment of the invention is explained below with reference to the drawings. In it shows
Figure 1
the contact system of an electromagnetic relay with the actuators removed,
Figure 2
the same contact system with built-in actuators in the rest position of the relay, the coil, core and armature of the relay also being shown for clarity,
Figure 3
the contact system in the working position of the relay, and
Figure 4
the contact system in the rest position of the relay, whereby one of the normally open contacts has not opened due to welding and the positively driven normally closed contact has not closed.

Gemäß Figur 1 umfaßt die Kontaktanordnung zwei Schließer 10 und 20, einen Öffner 30 und zwei Betätiger 40, 50. According to FIG. 1, the contact arrangement comprises two make contacts 10 and 20, one break contact 30 and two actuators 40, 50.

Der Schließer 10 besteht aus einem Festkontakt 11 mit zwei Kontaktstücken 12, 13 und einem Anschlußteil 14 sowie einer Kontaktfeder 15, die an ihrem einen Ende an einem Anschlußteil 16 befestigt ist und an ihrem anderen, freien Ende zwei Kontaktstücke 17, 18 trägt, die mit den Kontaktstücken 12, 13 des Festkontakts 11 zusammenarbeiten.The closer 10 consists of a fixed contact 11 with two contact pieces 12, 13 and a connecting part 14 and a contact spring 15 which is attached at one end to a connecting part 16 and carries at its other, free end two contact pieces 17, 18 , which with the contact pieces 12, 13 of the fixed contact 11 work together.

Der Schließer 20 und der Öffner 30 sind identisch aufgebaut.The make contact 20 and the break contact 30 are constructed identically.

Die Kontaktfedern 15, 25 der beiden Schließer 10, 20 sind als Flexure-Kontaktfedern ausgebildet, so daß sich ihre Kontaktstücke in der Ruhelage, betrachtet ohne Betätiger, in einem Abstand von denen des jeweiligen Festkontakts 11, 21 befinden. Demgegenüber ist die Kontaktfeder 35 des Öffners 30 als Lift-off-Kontaktfeder ausgebildet, so daß ihre Kontaktstücke in der Ruhelage, betrachtet ohne Betätiger, an den Kontaktstücken des Festkontakts 31 anliegen. The contact springs 15, 25 of the two normally open contacts 10, 20 are designed as flexure contact springs, so that their contact pieces in the rest position, viewed without an actuator, are at a distance from those of the respective fixed contact 11, 21 . In contrast, the contact spring 35 of the opener 30 is designed as a lift-off contact spring so that its contact pieces in the rest position, viewed without an actuator, rest on the contact pieces of the fixed contact 31 .

Der Betätiger 40 ist als insgesamt etwa U-förmige flache Schaltkarte gestaltet, wobei der rechte, nach unten ragende Schenkel 41 der U-Form einen nach unten offenen Schlitz 42 aufweist, der im eingebauten Zustand des Betätigers 40 (vergl. Figur 2 bis 4) die Kontaktfeder 15 des Schließers 10 beidseitig umgreift. Der Schlitz 42 ist mit zwei einander zugewandten Vorsprüngen 43, 44 versehen, die an beiden Seiten der Kontaktfeder 15 spielarm anliegen.The actuator 40 is designed as an approximately U-shaped flat circuit card, the right, downwardly projecting leg 41 of the U-shape having a downwardly open slot 42 which , when the actuator 40 is installed (see FIGS. 2 to 4) the contact spring 15 of the closer 10 engages on both sides. The slot 42 is provided with two mutually facing projections 43, 44 which rest on both sides of the contact spring 15 with little play.

Der nach unten ragende linke Schenkel 45 weist einen dem rechten Schenkel 41 zugewandten Vorsprung 46 auf, der gemäß Figur 3 und 4 an der linken Seitenfläche der Kontaktfeder 35 des Öffners 30 anliegt.The downwardly projecting left leg 45 has a projection 46 which faces the right leg 41 and which, according to FIGS. 3 and 4, bears against the left side surface of the contact spring 35 of the opener 30 .

Der Betätiger 50 ist mit dem Betätiger 40 im wesentlichen baugleich, wobei lediglich der Abstand zwischen den beiden Schenkeln 51, 55 voneinander geringer ist. Im eingebauten Zustand umgreift der Schlitz 52 die Kontaktfeder 25 des Schließers 20, wobei die beiden Vorsprünge 53, 54 an den Seitenflächen der Kontaktfeder 25 spielarm anliegen, während der Vorsprung 56 des linken Schenkels 55 an der linken Seitenfläche der Kontaktfeder 35 des Öffners 30 anliegt.The actuator 50 is essentially identical in construction to the actuator 40 , only the distance between the two legs 51, 55 being smaller from one another. In the installed state, the slot 52 engages around the contact spring 25 of the closer 20, the two projections 53, 54 resting against the side surfaces of the contact spring 25 with little play, while the projection 56 of the left leg 55 lies against the left side surface of the contact spring 35 of the opener 30 .

Wie in Figur 2 gezeigt, sind die beiden Betätiger 40, 50 dicht nebeneinander angeordnet, wobei ihre linken Stirnflächen, die in der in Figur 2 gezeigten Ruhestellung miteinander fluchten, zur Anlage am Anker 60 eines hier als monostabil angenommenen Relais dienen. Von dem Relais sind in Figur 2 außer dem Anker 60 die Spule 61 samt Spulenanschlüssen 62 und der die Spule 61 durchsetzende Kern 63 mit nach oben ragenden, mit dem Anker 60 zusammenwirkenden Polschuhen 64 gezeigt. In Figur 2 ist angenommen, daß sich das Relais in Ruhestellung befindet, so daß die Schließer 10, 20 geöffnet sind und der Öffner 30 geschlossen ist.As shown in Figure 2, the two actuators 40, 50 arranged close together, with their left end faces which are aligned with each other in the embodiment shown in Figure 2 rest position of a here serve to rest against the armature 60 as a monostable adopted relay. In addition to the armature 60, the relay 61 shows the coil 61 together with the coil connections 62 and the core 63 passing through the coil 61 with pole shoes 64 projecting upwards and interacting with the armature 60 . In Figure 2 it is assumed that the relay is in the rest position, so that the make contacts 10, 20 are open and the break contact 30 is closed.

Zieht das Relais an, so schwenkt der Anker 60 gegen den Uhrzeigersinn und übt auf beide Betätiger 40, 50 eine in Figur 2 nach rechts gerichtete Kraft aus. Die Betätiger 40 und 50 bewegen sich dabei in die in Figur 3 gezeigte Stellung, in der die beiden Schließer 10, 20 geschlossen sind und der Öffner 30 geöffnet ist.If the relay picks up, the armature 60 pivots counterclockwise and exerts a force directed to the right in FIG. 2 on both actuators 40, 50 . The actuators 40 and 50 move into the position shown in FIG. 3, in which the two NO contacts 10, 20 are closed and the NC contact 30 is open.

In der Darstellung nach Figur 4 ist angenommen, daß das Relais abgefallen und der Anker in seine Ruhestellung zurückgekehrt ist, der Schließer 10 jedoch verschweißt hat. In dieser Stellung ist der Betätiger 50 durch den geöffneten Schließer 20 in seine Ausgangsstellung zurückgekehrt, während der Betätiger 40 durch den noch in der geschlossenen Stellung befindlichen, verschweißten Schließer 10 in seiner ausgelenkten Stellung festgehalten wird. Der linke Schenkel 45 des Betätigers 40 hält in diesem Fall die Kontaktfeder 35 des Öffners 30 in der geöffneten Stellung, während sich der linke Schenkel 55 des Betätigers 50 von der Kontaktfeder 35 weg bewegt hat.In the illustration according to FIG. 4, it is assumed that the relay has dropped out and the armature has returned to its rest position, but the closer 10 has welded. In this position, the actuator 50 has returned to its starting position through the open closer 20 , while the actuator 40 is held in its deflected position by the welded closer 10 which is still in the closed position. The left leg 45 of the actuator 40 in this case holds the contact spring 35 of the opener 30 in the open position, while the left leg 55 of the actuator 50 has moved away from the contact spring 35 .

Die gleiche Funktion würde sich ergeben, wenn der Schließer 20 verschweißt und der Schließer 10 bei abfallendem Relais öffnet. In diesem Fall würde die Kontaktfeder 35 des Öffners 30 durch den linken Schenkel 55 des Betätigers 50 in der in Figur 4 gezeigten geöffneten Stellung festgehalten.The same function would result if the closer 20 welds and the closer 10 opens when the relay drops. In this case, the contact spring 35 of the opener 30 would be held in the open position shown in FIG. 4 by the left leg 55 of the actuator 50 .

In dem obigen Ausführungsbeispiel sind die Betätiger 40, 50 so gestaltet, daß sie mit den Kontaktfedern 15, 25 des jeweils zugeordneten Schließers 10, 20 in beiden Richtungen zwangsgeführt gekoppelt sind. Mit anderen Worten werden die Kontaktfedern 15, 25 bei anziehendem Relais durch die Betätiger 40, 50 entgegen ihrer Federvorspannung in die geschlossene Stellung geführt, während das Öffnen der Schließer 10, 20 durch die Rückstellkraft der Federn 15 bzw. 25 erfolgt.In the above exemplary embodiment, the actuators 40, 50 are designed in such a way that they are positively coupled to the contact springs 15, 25 of the respectively associated normally open contact 10, 20 in both directions. In other words, when the relay picks up, the contact springs 15, 25 are guided into the closed position by the actuators 40, 50 against their spring preload, while the closing contacts 10, 20 are opened by the restoring force of the springs 15 and 25 , respectively.

Gemäß einer nicht dargestellten Variante ist es auch möglich, mehr als zwei Schließer mit einer entsprechenden Anzahl von Betätigern vorzusehen und funktionsmäßig mit dem gleichen Öffner zu koppeln.According to a variant not shown, it is also possible to do more to be provided as two NO contacts with a corresponding number of actuators and to functionally couple with the same NC contact.

Ferner ist in dem obigen Ausführungsbeispiel angenommen, daß der dritte Kontakt 30 als Öffner gestaltet ist. Es wäre auch möglich, dieser Kontakt als Schließer auszubilden. In diesem Fall würde immer dann, wenn einer der beiden Schließer 10, 20 verschweißt, der dritte Kontakt 30 nicht mehr öffnen können. Auch diese Funktion ließe sich zum Erkennen eines Verschweißungszustandes heranziehen.Furthermore, it is assumed in the above embodiment that the third contact 30 is designed as an opener. It would also be possible to design this contact as a closer. In this case, whenever one of the two make contacts 10, 20 welds, the third contact 30 would no longer be able to open. This function could also be used to identify a welded condition.

Claims (4)

Kontaktsystem für ein elektromagnetisches Relais mit wenigstens zwei Schließern (10, 20), einem weiteren Kontakt (30) und einer wenigstens zwei parallel bewegbare Bauteile (40, 50) umfassenden Betätigungsanordnung, die
   bei Bewegung eines Relaisankers in eine Arbeitsstellung das Schließen beider Schließer (10, 20) und das Schalten des weiteren Kontaktes (30) gestattet und
   bei Rückbewegung des Ankers in die Ruhestellung das Öffnen der Schließer (10, 20) gestattet, das Rückschalten des weiteren Kontaktes (30) jedoch verhindert, wenn einer der Schließer (10, 20) nicht öffnet,
   dadurch gekennzeichnet,    daß jedem Schließer (10, 20) ein eigener vom Relaisanker angetriebener Betätiger (40, 50) zugeordnet ist,
   daß der bewegbare Teil jedes Schließers (10, 20) mit dem zugeordneten Betätiger (40, 50) in Kontakt-Öffnungsrichtung zwangsgeführt gekoppelt ist, und
   daß beide Betätiger (40, 50) mit dem bewegbaren Teil (35) des weiteren Kontaktes (30) nur in Richtung der Arbeitsstellung zwangsgeführt gekoppelt sind.Contact system for an electromagnetic relay with at least two normally open contacts ( 10 , 20 ), a further contact ( 30 ) and an actuating arrangement comprising at least two components ( 40 , 50 ) which can be moved in parallel
when a relay armature moves into a working position, the closing of both make contacts ( 10 , 20 ) and the switching of the further contact ( 30 ) are permitted and
allows the closers ( 10 , 20 ) to open when the armature moves back into the rest position, but prevents the further contact ( 30 ) from switching back if one of the closers ( 10 , 20 ) does not open,
characterized in that each make contact ( 10 , 20 ) is assigned its own actuator ( 40 , 50 ) driven by the relay armature,
that the movable part of each closer ( 10 , 20 ) is positively coupled to the associated actuator ( 40 , 50 ) in the contact opening direction, and
that both actuators ( 40 , 50 ) with the movable part ( 35 ) of the further contact ( 30 ) are positively coupled only in the direction of the working position. Kontaktsystem nach Anspruch 1, wobei der bewegbare Teil (15, 25) jedes Schließers (10, 20) und der bewegbare Teil (35) des weiteren Kontaktes (30) die Rückstellkräfte für die zugeordneten Betätiger (40, 50) liefern. Contact system according to claim 1, wherein the movable part ( 15 , 25 ) of each closer ( 10 , 20 ) and the movable part ( 35 ) of the further contact ( 30 ) provide the restoring forces for the associated actuators ( 40 , 50 ). Kontaktsystem nach Anspruch 1 oder 2, wobei die Betätiger (40, 50) als nebeneinander angeordnete Schaltkarten unterschiedlicher Länge gestaltet sind, deren jede den bewegbaren Teil (15, 25) des zugeordneten Schließers (10, 20) umgreift.Contact system according to claim 1 or 2, wherein the actuators ( 40 , 50 ) are designed as juxtaposed circuit cards of different lengths, each of which encompasses the movable part ( 15 , 25 ) of the associated closer ( 10 , 20 ). Kontaktsystem nach Anspruch 3, wobei der bewegbare Teil (15, 25) jedes Schließers (10, 20) als Flexure-Kontaktfeder ausgebildet und mit dem zugeordneten Betätiger (40, 50) in beiden Bewegungsrichtungen zwangsgeführt gekoppelt ist, und daß der bewegbare Teil (35) des weiteren Kontaktes (30) als Lift-off-Kontaktfeder ausgebildet ist.Contact system according to claim 3, wherein the movable part ( 15 , 25 ) of each closer ( 10 , 20 ) is designed as a flexure contact spring and is forcibly coupled to the associated actuator ( 40 , 50 ) in both directions of movement, and in that the movable part ( 35 ) of the further contact ( 30 ) is designed as a lift-off contact spring.
EP02000523A 2001-01-16 2002-01-09 Contact system for electromagnetic relay Expired - Lifetime EP1223598B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK02000523T DK1223598T3 (en) 2001-01-16 2002-01-09 Electromagnetic relay contact system
SI200230133T SI1223598T1 (en) 2001-01-16 2002-01-09 Contact system for electromagnetic relay

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10101751A DE10101751C1 (en) 2001-01-16 2001-01-16 Contact system for electromagnetic relays
DE10101751 2001-01-16

Publications (3)

Publication Number Publication Date
EP1223598A2 true EP1223598A2 (en) 2002-07-17
EP1223598A3 EP1223598A3 (en) 2003-01-29
EP1223598B1 EP1223598B1 (en) 2005-03-16

Family

ID=7670713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000523A Expired - Lifetime EP1223598B1 (en) 2001-01-16 2002-01-09 Contact system for electromagnetic relay

Country Status (7)

Country Link
EP (1) EP1223598B1 (en)
AT (1) ATE291275T1 (en)
DE (2) DE10101751C1 (en)
DK (1) DK1223598T3 (en)
ES (1) ES2236367T3 (en)
PT (1) PT1223598E (en)
SI (1) SI1223598T1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2492936A1 (en) * 2011-02-24 2012-08-29 Panasonic Corporation Electromagnetic relay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10309596B3 (en) * 2003-03-05 2004-12-30 Matsushita Electric Works (Europe) Ag Relay arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423855A1 (en) * 1978-04-19 1979-11-16 Haller & Co E HIGH SECURITY CONTACT SPRING RELAY
US5831502A (en) * 1996-01-06 1998-11-03 Hengstler Gmbh Relay with positively guided contact sets
WO2000024020A1 (en) * 1998-10-16 2000-04-27 Tyco Electronics Gmbh Security relay

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423855A1 (en) * 1978-04-19 1979-11-16 Haller & Co E HIGH SECURITY CONTACT SPRING RELAY
US5831502A (en) * 1996-01-06 1998-11-03 Hengstler Gmbh Relay with positively guided contact sets
WO2000024020A1 (en) * 1998-10-16 2000-04-27 Tyco Electronics Gmbh Security relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2492936A1 (en) * 2011-02-24 2012-08-29 Panasonic Corporation Electromagnetic relay

Also Published As

Publication number Publication date
SI1223598T1 (en) 2005-10-31
DK1223598T3 (en) 2005-04-18
ES2236367T3 (en) 2005-07-16
ATE291275T1 (en) 2005-04-15
DE50202451D1 (en) 2005-04-21
DE10101751C1 (en) 2002-11-14
EP1223598B1 (en) 2005-03-16
PT1223598E (en) 2005-05-31
EP1223598A3 (en) 2003-01-29

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