EP0363523A1 - Mechanical interlock - Google Patents

Mechanical interlock Download PDF

Info

Publication number
EP0363523A1
EP0363523A1 EP88117156A EP88117156A EP0363523A1 EP 0363523 A1 EP0363523 A1 EP 0363523A1 EP 88117156 A EP88117156 A EP 88117156A EP 88117156 A EP88117156 A EP 88117156A EP 0363523 A1 EP0363523 A1 EP 0363523A1
Authority
EP
European Patent Office
Prior art keywords
switching
locking device
bracket
armature
anchors
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.)
Withdrawn
Application number
EP88117156A
Other languages
German (de)
French (fr)
Inventor
Erwin Ing. Flierl
Johann Ing. Drexler
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP88117156A priority Critical patent/EP0363523A1/en
Publication of EP0363523A1 publication Critical patent/EP0363523A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01H50/32—Latching movable parts mechanically
    • H01H50/323—Latching movable parts mechanically for interlocking two or more relays

Definitions

  • the invention relates to a mechanical locking device for two switching devices, preferably electromagnetic switching devices, which prevents the switching on of a switching device by blocking the switch-on movement of the armature of this switching device, as long as the other is switched on and vice versa.
  • the contact bridge supports which can be moved parallel to the plunger anchors are connected to one another via levers attached to the housing, the free ends of which are loosely coupled to one another via a common locking slide. Due to the loose coupling, it cannot be ruled out under extreme conditions, for example if the attracted armature does not lie snugly on the yoke, that the other armature adversely affects the other switching device.
  • the present invention is therefore based on the object of preventing the switched-on switching device from being influenced by the other switching device with simple effort in any case.
  • the locking device in such a way that when the one switching device is switched on, the armature of the other switching device is removed from its rest position by entrainment from the associated yoke.
  • the system has proven particularly effective when the anchors are hinged anchors and the entrainment consists of a bracket that couples the two anchors in the direction of switch-off.
  • the bracket projects over the free ends of the hinged anchor and the bracket in turn bears against the respective contact slide in the switching-on direction thereof.
  • Use of the locking device according to the invention in reversing combinations is advantageous if the switching devices act as contactors in opposite directions direction of movement of their two hinged anchors are arranged in a housing as a contactor combination.
  • hinged anchors on their sides facing away from the bracket and the contact slides, are pressed against the yoke via springs that support a housing projection.
  • the contactor turning combination shown in the drawing consists of the lower housing part 1, in which the yokes 2 are held with the coils 3 of the hinged armature systems.
  • the hinged anchors 4 are supported on the one hand with the extensions 5 on the yokes 2.
  • springs 6 are used, which are supported on the one hand on the armatures 4 and on the other hand on a housing projection 7.
  • the free ends 8 of the hinged armature 4 protrude into a bracket 9 which, on the other hand, rests with its outer sides on extensions 10 of the contact slides 11, which are displaceably guided against the force of back pressure springs 12 in the housing halves 13.
  • the movable contacts held in the slides 11, which interact with fixed contacts, are not shown in the exemplary embodiment.
  • the bracket can also have the position shown in FIG. 2, namely between the two free ends 8 there is a projection 14 which forms the crowned free ones Ends 8 holds more or less positively in cooperation with the bracket arms.

Landscapes

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

Abstract

A mechanical interlock for two switching devices, preferably electromagnetic switching devices, is described, which interlock is intended reliably to prevent the other switching device from being switched on when one switching device is switched on. The construction of the interlock is undertaken in such a way that when one switching device is switched on, the armature (4) of the other switching device is removed further from the associated yoke by being carried along out of its position of rest, so that a reliable blocking of the connecting movement of the other armature is guaranteed. The interlock can be applied especially in contactor-reverser combinations. <IMAGE>

Description

Die Erfindung bezieht sich auf eine mechanische Verriegelungs­einrichtung für zwei Schaltgeräte, vorzugsweise elektromagne­tische Schaltgeräte, die das Einschalten eines Schaltgerätes durch Blockieren der Einschaltbewegung des Ankers dieses Schaltgerätes verhindert, solange das andere eingeschaltet ist und umgekehrt.The invention relates to a mechanical locking device for two switching devices, preferably electromagnetic switching devices, which prevents the switching on of a switching device by blocking the switch-on movement of the armature of this switching device, as long as the other is switched on and vice versa.

Bei einer bekannten Verriegelungseinrichtung der obengenannten Art (DE-PS 29 40 433) sind die parallel zu den Tauchankern verschiebbaren Kontaktbrückenträger über am Gehäuse angehängte Hebel miteinander verbunden, deren freie Enden über einen ge­meinsamen Verriegelungsschieber lose miteinander gekoppelt sind. Durch die lose Kopplung ist es unter extremen Bedingun­gen nicht auszuschließen, beispielsweise wenn der angezogene Anker nicht satt auf dem Joch aufliegt, daß der andere Anker das andere Schaltgerät ungünstig beeinflußt. Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, eine Beeinflussung des eingeschalteten Schaltgerätes durch das andere Schaltge­rät mit einfachem Aufwand auf jeden Fall zu verhindern. Dies wird auf einfache Weise durch eine derartige Ausbildung der Verriegelungseinrichtung erreicht, daß beim Einschalten des einen Schaltgerätes der Anker des anderen Schaltgerätes aus seiner Ruhelage durch Mitnahme weiter vom zugehörigen Joch entfernt wird. Das System hat sich besonders gut bewährt, wenn, die Anker Klappanker sind und die Mitnahme aus einem die beiden Anker jeweils in Ausschaltrichtung koppelnden Bügel be­steht. Eine einfache Ausführungsform ergibt sich, wenn der Bügel über die freien Enden des Klappankers ragt und der Bügel seinerseits in Einschaltrichtung des jeweiligen Kontaktschie­bers an diesem anliegt. Eine Verwendung der erfindungsgemäßen Verriegelungseinrichtung bei Wendekombinationen ist von Vor­teil, wenn die Schaltgeräte als Schütze in gegenläufiger Be­ wegungsrichtung ihrer beiden Klappanker in einem Gehäuse als Schützwendekombination angeordnet sind. Um keine besonderen Toleranzen, die die Beweglichkeit des Klappankers beeinflus­sen, beachten zu müssen, ist es von Vorteil, wenn die Klappan­ker an ihren, dem Bügel und den Kontaktschiebern abgewandten Seiten über sich andererseits an einem Gehäusevorsprung ab­stütztende Federn gegen das Joch gedrückt sind.In a known locking device of the type mentioned above (DE-PS 29 40 433), the contact bridge supports which can be moved parallel to the plunger anchors are connected to one another via levers attached to the housing, the free ends of which are loosely coupled to one another via a common locking slide. Due to the loose coupling, it cannot be ruled out under extreme conditions, for example if the attracted armature does not lie snugly on the yoke, that the other armature adversely affects the other switching device. The present invention is therefore based on the object of preventing the switched-on switching device from being influenced by the other switching device with simple effort in any case. This is achieved in a simple manner by designing the locking device in such a way that when the one switching device is switched on, the armature of the other switching device is removed from its rest position by entrainment from the associated yoke. The system has proven particularly effective when the anchors are hinged anchors and the entrainment consists of a bracket that couples the two anchors in the direction of switch-off. A simple embodiment results if the bracket projects over the free ends of the hinged anchor and the bracket in turn bears against the respective contact slide in the switching-on direction thereof. Use of the locking device according to the invention in reversing combinations is advantageous if the switching devices act as contactors in opposite directions direction of movement of their two hinged anchors are arranged in a housing as a contactor combination. In order not to have to observe any special tolerances that affect the mobility of the hinged anchor, it is advantageous if the hinged anchors, on their sides facing away from the bracket and the contact slides, are pressed against the yoke via springs that support a housing projection.

Anhand der Zeichnung wird ein Ausführungsbeispiel gemäß der Erfindung beschrieben.

  • FIG 1 zeigt eine mechanische Verriegelungseinrichtung inner­halb einer Wendeschützkombination in Seitenansicht, zum Teil im Schnitt und
  • FIG 2 die Ausführung nach FIG 1 mit einer mehr oder weniger formschlüssigen Kopplung der Klappanker über den Ver­riegelungsbügel.
An exemplary embodiment according to the invention is described with reference to the drawing.
  • 1 shows a mechanical locking device within a reversing contactor combination in a side view, partly in section and
  • 2 shows the embodiment according to FIG. 1 with a more or less form-fitting coupling of the hinged anchors via the locking bracket.

Die in der Zeichnung dargestellte Schützwendekombination be­steht aus dem Gehäuseunterteil 1, in dem die Joche 2 mit den Spulen 3 der Klappankersysteme gehalten sind. Die Klappanker 4 stützen sich einerseits mit den Fortsätzen 5 an den Jochen 2 ab. Hierzu dienen Federn 6, die sich einerseits an den An­kern 4 und andererseits an einem Gehäusevorsprung 7 abstützen. Die freien Enden 8 der Klappanker 4 ragen in einen Bügel 9 hinein, der andererseits mit seinen Außenseiten an Fortsätzen 10 der Kontaktschieber 11 anliegen, die entgegen der Kraft von Rückdruckfedern 12 in den Gehäuseoberteilhälften 13 verschieb­bar geführt sind. Die in den Schiebern 11 gehaltenen bewegli­chen Kontakte, die mit feststehenden Kontakten zusammenwirken, sind im Ausführungsbeispiel nicht dargestellt.The contactor turning combination shown in the drawing consists of the lower housing part 1, in which the yokes 2 are held with the coils 3 of the hinged armature systems. The hinged anchors 4 are supported on the one hand with the extensions 5 on the yokes 2. For this purpose, springs 6 are used, which are supported on the one hand on the armatures 4 and on the other hand on a housing projection 7. The free ends 8 of the hinged armature 4 protrude into a bracket 9 which, on the other hand, rests with its outer sides on extensions 10 of the contact slides 11, which are displaceably guided against the force of back pressure springs 12 in the housing halves 13. The movable contacts held in the slides 11, which interact with fixed contacts, are not shown in the exemplary embodiment.

Wird nun beispielsweise die Spule 3 des linken Systems an Spannung gelegt, so bewegt sich der Anker entgegen dem Uhrzei­gersinn auf das Joch 2 zu und nimmt den Bügel 9 und damit den Kontaktschieber 11 entgegen der Kraft der Feder 12 über den Fortsatz 10 mit. Die andere Seite des Bügels liegt am freien Ende 8 des anderen Klappankers an und entfernt diesen weiter vom Joch 2 des rechten Systems, so daß beim Einschalten der rechten Spule die auf den Anker 4 einwirkenden Magnetkräfte des rechten Systems derart gering sind, daß ein Durchziehen ausgeschlossen ist. Der gleiche Sachverhalt trifft für das linke System ein, sofern das rechte System zuerst an Spannung gelegt wurde. Um sicherzustellen, daß die Klappanker in der Ruhestellung, d.h. bei nicht eingeschalteten Systemen eine de­finierte Lage haben, kann der Bügel auch die aus FIG 2 ersicht­liche Lage aufweisen, nämlich zwischen den beiden freien Enden 8 befindet sich ein Vorsprung 14, der die ballig ausgebildeten freien Enden 8 mehr oder weniger formschlüssig im Zusammenwir­ken mit den Bügelarmen hält.If, for example, the coil 3 of the left system is now energized, the armature moves counterclockwise towards the yoke 2 and takes the bracket 9 and thus the contact slide 11 against the force of the spring 12 via the Extension 10 with. The other side of the bracket rests on the free end 8 of the other hinged armature and removes it further from the yoke 2 of the right system, so that when the right coil is switched on, the magnetic forces of the right system acting on the armature 4 are so low that pulling through is excluded is. The same situation applies to the left system, provided the right system was first energized. In order to ensure that the hinged anchors have a defined position in the rest position, that is to say when the systems are not switched on, the bracket can also have the position shown in FIG. 2, namely between the two free ends 8 there is a projection 14 which forms the crowned free ones Ends 8 holds more or less positively in cooperation with the bracket arms.

Claims (5)

1. Mechanische Verriegelungseinrichtung für zwei Schaltgeräte, vorzugsweise elektromagnetische Schaltgeräte, die das Einschal­ten eines Schaltgerätes durch Blockieren der Einschaltbewegung des Ankers dieses Schaltgerätes verhindert, solange das andere eingeschaltet ist und umgekehrt, gekennzeichnet durch eine derartige Ausbildung der Verriegelungsein­richtung, daß beim Einschalten des einen Schaltgerätes der Anker (4) des anderen Schaltgerätes aus seiner Ruhelage durch Mitnahme (9) weiter vom zugehörigen Joch entfernt wird.1. Mechanical locking device for two switching devices, preferably electromagnetic switching devices, which prevents the switching on of a switching device by blocking the switch-on movement of the armature of this switching device as long as the other is switched on and vice versa, characterized by such a design of the locking device that when switching on the switching device Armature (4) of the other switching device is removed from its rest position by driving (9) further from the associated yoke. 2. Verriegelungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Anker Klappanker (4) sind und die Mitnahme aus einem die beiden Anker (4) jeweils in Ausschaltrichtung koppelnden Bügel (9) besteht.2. Locking device according to claim 1, characterized in that the anchors are hinged anchors (4) and the entrainment consists of a bracket (9) each coupling the two anchors (4) in the switching-off direction. 3. Verriegelungseinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Bügel (9) über die freien Enden (8) des Klappankers ragt und der Bügel (9) seiner­seits in Einschaltrichtung des jeweiligen Kontaktschiebers (11) an diesem anliegt (10).3. Locking device according to claim 2, characterized in that the bracket (9) protrudes over the free ends (8) of the folding anchor and the bracket (9) in turn in the switch-on direction of the respective contact slide (11) abuts against this (10). 4. Verriegelungseinrichtung nach Anspruch 2 oder 3, da­durch gekennzeichnet, daß die Schaltge­räte als Schütze in gegenläufiger Bewegungsrichtung ihrer bei­den Klappanker (4) in einem Gehäuse (1) als Schützwendekombi­nation angeordnet sind.4. Locking device according to claim 2 or 3, characterized in that the switching devices are arranged as contactors in the opposite direction of movement of their two folding anchors (4) in a housing (1) as a contactor reversing combination. 5. Verriegelungseinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Klappanker (4) an ihren, dem Bügel (9) und den Kontaktschiebern (11) abgewandten Seiten über sich andererseits an einem Gehäusevorsprung abstütztende Federn (6) gegen die Joche (2) gedrückt sind.5. Locking device according to claim 4, characterized in that the hinged armature (4) on their, the bracket (9) and the contact slides (11) facing sides on the other hand on a housing projection supporting springs (6) pressed against the yokes (2) are.
EP88117156A 1988-10-14 1988-10-14 Mechanical interlock Withdrawn EP0363523A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP88117156A EP0363523A1 (en) 1988-10-14 1988-10-14 Mechanical interlock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88117156A EP0363523A1 (en) 1988-10-14 1988-10-14 Mechanical interlock

Publications (1)

Publication Number Publication Date
EP0363523A1 true EP0363523A1 (en) 1990-04-18

Family

ID=8199461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117156A Withdrawn EP0363523A1 (en) 1988-10-14 1988-10-14 Mechanical interlock

Country Status (1)

Country Link
EP (1) EP0363523A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510985A2 (en) * 1991-04-25 1992-10-28 Eaton Corporation Mechanical interlock for a pair of electromagnetic switches

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112380A (en) * 1959-12-30 1963-11-26 Clark Equipment Co Electric reversing switch mechanism with mechanical interlock
US3336547A (en) * 1965-09-27 1967-08-15 Arrow Hart & Hegeman Electric Mechanically and electrically interlocked electromagnetic contactors
EP0025915A1 (en) * 1979-09-18 1981-04-01 Siemens Aktiengesellschaft Locking device for contact supports
DE2940433A1 (en) * 1979-10-05 1981-04-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mechanical interlock for end-on relays - spans two relay switch levers to prevent operation of both at same time using slide following operated lever
EP0156386A2 (en) * 1984-03-29 1985-10-02 Ichiemon Shosha Company Ltd. Contactor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112380A (en) * 1959-12-30 1963-11-26 Clark Equipment Co Electric reversing switch mechanism with mechanical interlock
US3336547A (en) * 1965-09-27 1967-08-15 Arrow Hart & Hegeman Electric Mechanically and electrically interlocked electromagnetic contactors
EP0025915A1 (en) * 1979-09-18 1981-04-01 Siemens Aktiengesellschaft Locking device for contact supports
DE2940433A1 (en) * 1979-10-05 1981-04-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mechanical interlock for end-on relays - spans two relay switch levers to prevent operation of both at same time using slide following operated lever
EP0156386A2 (en) * 1984-03-29 1985-10-02 Ichiemon Shosha Company Ltd. Contactor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H. FRANKEN "SCHUETZE UND SCHUETZENSTEUERUNG" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510985A2 (en) * 1991-04-25 1992-10-28 Eaton Corporation Mechanical interlock for a pair of electromagnetic switches
EP0510985A3 (en) * 1991-04-25 1993-08-11 Westinghouse Electric Corporation Mechanical interlock for a pair of electromagnetic switches

Similar Documents

Publication Publication Date Title
DE1060960B (en) Electrical contact device
DE3211685C2 (en) Contactors for controlling electric motors
DE2118633B2 (en) Folding armature contactor with changeover contact sets
DE1614837C3 (en) Electromagnetic contactor
EP0170172B1 (en) Piezoelectric relay
DE2314069A1 (en) MECHANICAL LOCK FOR TWO ACTUATORS
EP0363523A1 (en) Mechanical interlock
EP0237610A2 (en) Electromagnetic relay
DE2913106A1 (en) ELECTROMAGNETIC RELAY WITH FORCED CONTACTS
DE3340904A1 (en) Magnetically operated switch arrangement, especially an air contactor
DE2402236C3 (en) Pluggable electromagnetic relay with a cuboid housing
DE3335732C2 (en)
EP0795186B1 (en) Electromagnet switch
DE2717293C3 (en) Electromagnetic relay with forcibly guided contacts
EP0068391A2 (en) Miniaturised polarised electromagnetic relay
DE3304513C2 (en) Contactors for controlling electric motors
CH664645A5 (en) SWITCHING DEVICE FOR CONTROLLING ELECTRIC MOTORS.
DE909727C (en) Electrical rotary switches, in particular alternating current switches
DE3225830A1 (en) Electromagnetic rotating armature relay
DE1490593C (en) Installation on electrical self-switches
DE2005138C3 (en) Electric toggle switch
EP0170173A1 (en) Piezoelectric relay
CH656977A5 (en) ELECTROMAGNETIC FLAT RELAY.
DE3430363A1 (en) AC contactor
DE3415019A1 (en) REVERSE PROTECTION

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19901009

17Q First examination report despatched

Effective date: 19930325

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19930709