EP0098894B1 - Electric commutation device, in particular a contactor - Google Patents

Electric commutation device, in particular a contactor Download PDF

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Publication number
EP0098894B1
EP0098894B1 EP82106410A EP82106410A EP0098894B1 EP 0098894 B1 EP0098894 B1 EP 0098894B1 EP 82106410 A EP82106410 A EP 82106410A EP 82106410 A EP82106410 A EP 82106410A EP 0098894 B1 EP0098894 B1 EP 0098894B1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
bridge
electrical switching
bridges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82106410A
Other languages
German (de)
French (fr)
Other versions
EP0098894A1 (en
Inventor
Helmut Lemmer
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.)
Square D Starkstrom GmbH
Original Assignee
Square D Starkstrom GmbH
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 Square D Starkstrom GmbH filed Critical Square D Starkstrom GmbH
Priority to AT82106410T priority Critical patent/ATE22748T1/en
Priority to DE8282106410T priority patent/DE3273685D1/en
Priority to EP82106410A priority patent/EP0098894B1/en
Priority to NO823217A priority patent/NO160169C/en
Priority to ES516757A priority patent/ES516757A0/en
Priority to DK549082A priority patent/DK549082A/en
Priority to AU15996/83A priority patent/AU564608B2/en
Priority to CA000432427A priority patent/CA1232631A/en
Priority to BR8303776A priority patent/BR8303776A/en
Priority to MX198050A priority patent/MX153846A/en
Priority to US06/515,020 priority patent/US4550232A/en
Publication of EP0098894A1 publication Critical patent/EP0098894A1/en
Priority to US06/644,778 priority patent/US4540859A/en
Application granted granted Critical
Publication of EP0098894B1 publication Critical patent/EP0098894B1/en
Priority to AU75610/87A priority patent/AU593922B2/en
Priority to AU75650/87A priority patent/AU7565087A/en
Priority to CA000545226A priority patent/CA1255726A/en
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa

Definitions

  • the invention relates to an electrical switching device, in particular a contactor, with at least one contact system which has two contact bridges which are movably held in parallel and at a distance from one another under spring pressure in a contact bridge holder and which cooperate with fixed contact connecting rails, a device with a slide being provided between two end positions can be moved and acts on the contact system such that the contact system forms a closer in one end position and an opener in the other end position.
  • Switchgear of the aforementioned type are required in large numbers in practice. They are used to carry out a wide variety of switching tasks, the switching device in question being actuated either by hand or by machine or by an electromagnet.
  • the switching devices contain at least one contact system, whereby the individual contacts can be designed either as make contacts or as break contacts, depending on which switching task the switching device is to perform, i.e. if the contact in question closes when the device is actuated, it is called a make contact and if a contact opens when the device is actuated, i.e. breaks the circuit, it is called a break contact. Now it happens very often in practice, e.g.
  • a switching device explained at the beginning is already known from document FR-A-2 352 388, and as said, a conversion from a make contact to a break contact and vice versa can be carried out.
  • a rotating body which can be rotated through 180 ° and which, depending on the rotating position, forms different stops for extension parts of the contact bridges.
  • an insulating body is moved against the force of the compression spring in the axial direction between two end positions. In this case too, extension parts of the contact bridges come to different stops and thus optionally to convert from a make contact into a break contact or vice versa.
  • the invention has for its object to provide an electrical switching device that can be made very compact and that requires only a small amount of material for switching from an opener to a closer and vice versa.
  • the displaceable plate is designed so that at least two insulated projections are arranged perpendicular to the plate, which are offset from one another in the stroke direction of the contact bridge holder by the thickness of the contact connecting rails plus the thickness of the fixed contact pieces on both sides, so that the one projection in the one end position of the slide between the one contact bridge and the one contact connection rail and the other projection in the other end position of the slide between the other contact bridge and the other contact connection rail engage in an insulating manner.
  • a further solution to the problem arises from the fact that two contact bridges, which are held parallel and at a distance from one another under spring pressure, are arranged on both sides of the contact connecting rails in a contact bridge holder, and that a middle piece is provided as a device between the contact bridges, such that in the one end position both Contact bridges are held in the raised position and when actuated one contact bridge forms a make contact and that in the other end position the other contact bridge is held in contact position and forms an opener when actuated.
  • the device has a movably mounted body which, on the one hand, contacts the contact acts on the bridge and on the other hand carries a role that interacts with a sliding guide for actuating the switching device, which is designed such that the contact bridge optionally forms a closer or an opener.
  • the main advantages are that the length of the switching device does not go beyond switching devices that have so far been designed without the possibility of switching from normally closed to normally open and vice versa. Furthermore, you can get by with a pair of contact connection rails and the contact bridges can remain symmetrical and small in size.
  • Figures 1 and 2 illustrate a contact system according to the prior art, such as is used as a so-called auxiliary contact in a contactor.
  • the contact system has two fixed contact connecting rails 1 and 2 with contact pieces 3 and 4 and a movable contact bridge 5 with contact pieces 6 and 7.
  • the contact bridge 5 is held in a contact bridge holder 8, which is essentially designed as a double frame and has two openings or windows 9, 10 and two outer webs 11 and 12 and an inner web 13.
  • the contact bridge 5 is inserted in the window 10 and rests on the top of the inner web 13 in the rest position.
  • a contact pressure spring 14 is inserted between contact bridge 5 and web 11.
  • the contact system according to FIG. 1 represents a make contact.
  • the mode of operation is essentially as follows.
  • the contact bridge holder 8 is held in the uppermost rest position by the action of a spring, not shown.
  • the contact bridge holder is connected to a movable armature of a magnet system, the armature also being held in the uppermost rest position by said spring. If the contactor picks up or if it is moved by hand, for example via a push button (not shown) at the upper end of the contact bridge holder in the direction of arrow 15, the contact bridge 5 is carried along until the contact pieces 6, 7 meet the contact pieces 3, 4. The contact bridge holder 8 is then usually moved a little further down, so that the contacts are under the pressure of the contact pressure spring. If one wants to convert this contact system from a closer according to FIG. 1 into an opener according to FIG.
  • FIGS. 3 to 6 show an exemplary embodiment of a switching device according to the invention, in which the conversion from a break contact to a make contact or vice versa can be carried out extremely easily, without any wiring having to be loosened or assembly measures having to be carried out on the contact bridge holder.
  • a device is provided here, in the present exemplary embodiment a slide 21, which can be moved between two end positions. One end position is shown in FIG. 3, the other end position, corresponding to the direction of displacement 24, is shown in FIG. 4.
  • This slide is designed and acts on the contact system in such a way that the contact system has a closer in one end position of the slide and one in the other end position NC contact results.
  • two contact bridges 5 and 16 which are held parallel and at a distance from one another, are arranged on both sides of the contact connection rails 1 and 2 in the contact bridge holder 8 in this exemplary embodiment.
  • the two contact bridges 5 and 16 are under the influence of the contact pressure springs 14 and 25.
  • the contact connecting rails carry contact pieces on both sides, that is to say the contact pieces 3 and 4 on the upper side and the contact pieces 19 and 20 on the underside.
  • the second contact bridge 16 is also provided with contact pieces 17 and 18 equipped.
  • the slide 21 carries two insulated projections 22 and 23, which are arranged such that the one projection 22 in the one end position of the slide 21 according to FIG. 4 between the contact bridge 5 and the contact connecting rail 1 on one side of this contact connecting rail and the other projection 23 in the other end position of the slide 21 according to FIG. 3 engages between the contact bridge 16 and the contact connecting rail 2 on the other side of this contact connecting rail.
  • the principle of operation is as follows. In the position of the slide 21 according to FIG. 3, the passage of current between the contact connection rails 1 and 2 is prevented by the insulated projection 23. If the contact system is now actuated by moving the contact bridge holder 8 in the direction of arrow 15, the contact pieces 6 and 7 of the contact bridge 5 come into contact with the contact pieces 3 and 4, so that a closer is formed. In the other position of the slide according to FIG. 4, the projection 23 is disengaged, so that the contact bridge 16 bears against the contact pieces. In contrast, the insulated projection 22 now engages between the contact pieces 3 and 7. When the contact system is actuated, the contact bridge 16 opens, so that an opener is formed. The contact bridge 5 cannot be switched on again because of the engagement of the insulated projection 22.
  • the slide 21 is advantageously designed as a plate which can be displaced parallel to the two contact bridges 5, 16.
  • the projections 22 and 23 arranged perpendicular to the plate are offset in height approximately by the thickness of the contact connecting rails 1 and 2 and the fixed contact pieces 3, 4 and 19, 20 located thereon.
  • the projections 22, 23 according to FIG. 6 in the direction of displacement of the slide i.e. are each designed inwards to be wedge-shaped or tapered.
  • the plate-shaped slide 21 is longer than the contact bridges 5, 16, the projections 22 and 23 being arranged near the plate ends, so that they come into engagement parallel to the contact bridges 5, 16 when they are pushed in in the direction of arrow 24.
  • the slide can expediently be held on the inside of the wall of a housing 27 shown schematically in FIG. 5 by guide rails (not shown) with stops or similar path-limited guides.
  • the slide 21 is expediently designed and accommodated in the device housing 27 such that it is visible and / or actuatable from the outside. For this you can e.g.
  • the slide 21 is advantageous to provide the slide 21 with labels that are visible from the outside, if possible, which, depending on the position, indicate whether the contact system is effective as a closer or opener.
  • the designations can, for example, be designed according to the European standard.
  • the slider 21 and / or the projections 22, 23 are formed from insulating material. It is advantageous to make the protrusions, but possibly also the slide, from arc-proof material.
  • locking devices are expediently provided with respect to the two end positions of the slide.
  • This can e.g. Be leaf springs that engage in notches of the slide.
  • FIGS. 7 to 9 illustrate a further exemplary embodiment of a switching device according to the invention, which essentially corresponds to that according to FIGS. 3 to 6, so that the explanations there also apply mutatis mutandis to this exemplary embodiment, the same reference numerals being used for the same parts .
  • the slide 21 is provided with two pairs of projections 22, 23 and 29, 30 for the alternating engagement between the contact bridges 5, 16 and the contact connecting rails 1, 2 at both ends of the contact bridges.
  • the projections engage at both ends of the bridge in question and prevent the passage of the electrical current.
  • the current passage between the contact connecting rails 1, 2 and the contact bridge 16 is interrupted.
  • a contact system according to the prior art will be explained with reference to FIGS. 10 and 11. It is then known per se to arrange two contact bridges 5 and 16 in a contact bridge holder 8 on both sides of the contact connecting rails 1, 2. When actuated, the contact bridge 16 first opens, after which the contact bridge 5 then closes again. It is therefore only a question of a special switching operation, namely when the contact bridge holder 8 is actuated or pressed down once, the contact is first opened and then immediately closed again. There can be no question of converting make contact into break contact or vice versa.
  • FIGS. 12 to 17 illustrate a further exemplary embodiment of a switching device according to the invention, the same reference numerals having been used for the same or equivalent parts as in the previously explained exemplary embodiments.
  • the inner web 13 of the contact bridge holder 8 explained above has been at least partially omitted.
  • a middle piece 31 is arranged between the contact bridges 5 and 16, which is movable between two end positions, such that in the one end position according to FIGS. 12 and 13 both contact bridges 5, 16 are held in the raised position and, when actuated, the one contact bridge 5 forms a closer and that in the other end position according to FIG. 14 the other contact bridge 16 is held in contact position and forms an opener when actuated.
  • the center piece 31 is advantageously designed as a rectangular piece with rounded corners and is pivotably mounted about an axis 32 which is offset from the center.
  • the contact system offers a closer and according to FIGS. 14 and 15 an opener.
  • the conversion from make contact to break contact is carried out in a simple manner by rotating the rectangular center piece 31 from the position shown in FIG. 12 clockwise through 90 ° about the axis 32.
  • the axis 32 is mounted perpendicular to the common center plane of the contact bridges 5, 16 in the contact bridge holder 8.
  • the axis is advantageously accessible from the outside at least at one end, i.e. according to FIGS. 13 or 15, it can be extended up to the outer surfaces of the contact bridge holder 8.
  • Notches 33 can be provided on one or both ends of the axis 32, which can be engaged, for example, by means of a screwdriver and the change can be made.
  • the axis 32 can also be extended so far that it extends to an opening in the housing wall of the device or protrudes through the opening, so that the described changeover can be carried out from outside the device without any assembly work.
  • a plunger 26 or a push button for manual actuation or for mechanical actuation can be connected to the upper end of the contact bridge holder 8, as can be seen in the housing wall or through an opening in the cover of the housing protrudes.
  • Figures 18 to 22 illustrate a further embodiment of the switching device.
  • a contact pressure spring 14 which is under the pressure of a contact pressure spring 14, this contact pressure spring 14 being supported on any abutment 34.
  • the device has a movably mounted body 35 which acts on the one hand on the contact bridge 5 and on the other hand carries a roller 44 which interacts with a cam guide which can be displaced to actuate the switching device and which is designed such that the Contact bridge 5 optionally forms a closer or an opener.
  • the curve guide consists of two guide parts 45 and 46 running alongside one another.
  • the body 35 has a shaft 36, on the one end of which, in the lower drawing, ends, pins 38 and 39 are provided on both sides, which are held removably in a pivot bearing 40 .
  • the pivot bearing 40 can for example be semi-cylindrical.
  • a hammer head 37 or a hammer-head-like extension is provided, on which, at a distance from one another, bearing pins 41 and 42 for the optional attachment of the roller 44 are mounted on one side parallel to the pins 38 and 39.
  • the roller 44 is therefore attached to the body 35 so that it can be placed against one or the other guide part 45 or 46.
  • the guide parts 45 and 46 have mutually offset depressions 48 and 50 as well as projections 47 and 49.
  • This design of the two guide parts makes the contact bridge 5 by pressing the contact pressure spring 14 in the direction of the contact connecting rails 1, 2 when the roller runs on the one guide part 46 moved because the roller 44 hits the recess 50 (FIG. 19) from the projection 49 via the inclined surface 52 as soon as the guide part 46 moves downward in the direction of the arrow 51, that is to say the switching device is actuated.
  • the body 35 is expediently provided in the extension of its shaft 36 with a handle 43, on which at the same time an inscription visible from the outside can be applied, which indicates whether the contact system forms a closer or an opener. In order to convert the contact system from the closer described into an opener, one only needs to detach the body 35 from the pivot bearing 40.
  • the roller 44 is pushed from the bearing journal 41 onto the other bearing journal 42. If you now pivot the body 35 in the direction of arrow 54 about the longitudinal axis of the shaft 36 by 180 ° and then, as described, reinsert the body into the pivot bearing, the roller 44 rests on the guide part 45, in the rest position now of the recess 48. If you now guide the guide member 45 in the direction of arrow 51 when actuating the switching device down, the roller 44 runs from the recess 48 over the inclined surface 53 on the projection 47, whereby in this case the body 35 is pivoted such that the entrained Contact bridge 5 lifts off and thus an opener is formed. In the representation according to FIGS. 18 to 21, the contact system thus forms a closer, while an opener is formed after the changeover according to FIG.
  • FIGS. 24 to 28 finally illustrate a further exemplary embodiment of a switching device according to the invention, the effect of which essentially corresponds to that of FIGS. 18 to 22, so that the explanations there apply analogously.
  • the head piece 56 is designed to project only on one side of the body 35, which in turn interacts with the contact bridge 5.
  • an axle bearing 57 is provided for the axle 55 of the roller 44, which in turn runs in a fork-shaped recess 58.
  • only a single component 60 is provided as a guide, which is detachably attached to an actuator (not shown) and can be pivoted through 180 °.
  • the component 60 has at least one projection 61 and a depression 62, such that the projection 61 and depression 62 are exchanged in their position relative to the roller 44 when pivoted through 180 °.
  • roller 44 runs from projection 61 over inclined surface 63 and thus swivels together with body 35 and head piece 56 in the direction of Arrow 59, so that the contact bridge 5, which is under pressure from the contact pressure spring 14, can go along and thus form a closer.
  • Figures 26 to 28 illustrate a practical embodiment of a component 60 with two lateral guide ribs 67 and 68, which are used for insertion into a guide of the actuator of the switching device.
  • a projection 69 can be provided on the rear side, which comes into a recess in the actuating member and thus prevents unintentional displacement.

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  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Relay Circuits (AREA)
  • Breakers (AREA)
  • Electronic Switches (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Glass Compositions (AREA)
  • Keying Circuit Devices (AREA)
  • Control Of Electric Motors In General (AREA)
  • Slide Switches (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Burglar Alarm Systems (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Direct Current Motors (AREA)
  • Contacts (AREA)

Abstract

An electric switching device of the type having a contact system includes two stationary contact bars and movable contact bridges for interconnecting the bars. To convert the switching device from a circuit maker to a circuit breaker, or vice versa, a control member is provided in the form of a shiftable slide having insulating projections which in one end position of the slide are displaced between one bridge and a contact bar while the other projection is out of the range of movement of the bridges, and in the other end position the other insulating projection interrupts the contact between the other bridge and the assigned contact bar.

Description

Die Erfindung bezieht sich auf ein elektrisches Schaltgerät, insbesondere Schütz, mit mindestens einem Kontaktsystem, welches zwei parallel und mit Abstand voneinander unter Federdruck in einem Kontaktbrückenhalter beweglich gehaltene Kontaktbrücken und hiermit zusammenwirkende feststehende Kontaktanschlusschienen aufweist, wobei eine Vorrichtung mit einem Schieber vorgesehen ist, welche zwischen zwei Endstellungen bewegbar ist und derart auf das Kontaktsystem einwirkt, dass das Kontaktsystem in der einen Endstellung einen Schliesser und in der anderen Endstellung einen Öffner bildet.The invention relates to an electrical switching device, in particular a contactor, with at least one contact system which has two contact bridges which are movably held in parallel and at a distance from one another under spring pressure in a contact bridge holder and which cooperate with fixed contact connecting rails, a device with a slide being provided between two end positions can be moved and acts on the contact system such that the contact system forms a closer in one end position and an opener in the other end position.

Schaltgeräte der vorgenannten Gattung werden in der Praxis in sehr grossen Stückzahlen benötigt. Sie dienen zur Durchführung der verschiedensten Schaltungsaufgaben, wobei das betreffende Schaltgerät entweder von Hand oder maschinell oder durch einen Elektromagneten betätigt wird. Die Schaltgeräte enthalten mindestens ein Kontaktsystem, wobei die einzelnen Kontakte entweder als Schliesser oder als Öffner ausgebildet sein können, je nachdem, welche Schaltaufgabe das Schaltgerät durchführen soll, d.h. wenn der betreffende Kontakt bei Betätigung des Gerätes schliesst, so nennt man ihn einen Schliesser und wenn ein Kontakt beim Betätigen des Gerätes öffnet, also den Stromkreis unterbricht, nennt man ihn einen Öffner. Nun kommt es in der Praxis sehr häufig vor, z.B. wenn eine grössere Anzahl von Schaltgeräten zur Durchführung einer Programmsteuerung zusammengeschlossen sind, dass man einen Schliesser in einen Öffner oder umgekehrt einen Öffner in einen Schliesser umwandeln muss, z.B. wenn eine Änderung einer Programmsteuerung oder sonstiger Schaltungsaufgaben vorgenommen werden soll.Switchgear of the aforementioned type are required in large numbers in practice. They are used to carry out a wide variety of switching tasks, the switching device in question being actuated either by hand or by machine or by an electromagnet. The switching devices contain at least one contact system, whereby the individual contacts can be designed either as make contacts or as break contacts, depending on which switching task the switching device is to perform, i.e. if the contact in question closes when the device is actuated, it is called a make contact and if a contact opens when the device is actuated, i.e. breaks the circuit, it is called a break contact. Now it happens very often in practice, e.g. if a large number of switching devices are connected to carry out a program control, that you have to convert a make contact into a break contact or vice versa a break contact into a make contact, e.g. if you want to change a program control or other switching tasks.

Zur Durchführung einer solchen Änderung war es bisher bei den meisten Schaltgeräten erforderlich, diese völlig ausser Betrieb zu setzen, d.h. zum Beispiel von der Schalttafel oder aus dem Schaltschrank zu demontieren, und zwar nach Lösen sämtlicher Anschlussleitungen, sodann das Schaltgerät auseinanderzunehmen und die Umwandlung von Schliesser zu Öffner oder umgekehrt vorzunehmen. Der Wiedereinbau geht dann auf umgekehrtem Wege vonstatten. Es wurden auch bereits Schaltschränke vorgeschlagen, bei welchen eine oder mehrere Kontaktbrücken in einem Kontaktbrückenhalter in unterschiedlicher Lage gehalten sind, je nachdem, ob ein Schliesser oder ein Öffner für den jeweiligen Anwendungszweck benötigt wird. Bei diesen Geräten kann man zwar ohne vollständige Demontage den Gerätedeckel öffnen und den Kontaktbrückenhalter aus dem Gerät herausnehmen und dann die Anordnung der Kontaktbrücken entsprechend der geänderten Schaltaufgabe ändern und den Kontaktbrückenhalter wieder in das betreffende Gerät einsetzen.
Alle diese Arbeiten zum Umwandeln eines Schliessers in einen Öffner oder umgekehrt sind zum Teil sehr kompliziert, auf jeden Fall aber sehr umständlich und zeitaufwendig, und sie können auch nur durch die Hand eines Fachmannes vorgenommen werden, der den Aufbau des betreffenden elektrischen Schaltgerätes genau kennt.To carry out such a change, it was previously necessary for most switching devices to put them completely out of operation, i.e. to dismantle them, for example, from the control panel or from the control cabinet, namely after loosening all the connecting cables, then taking the switching device apart and converting the make contact to opener or vice versa. The reassembly then takes place in the opposite way. Control cabinets have also already been proposed in which one or more contact bridges are held in different positions in a contact bridge holder, depending on whether a make contact or a break contact is required for the respective application. With these devices you can open the device cover without removing it completely and remove the contact bridge holder from the device and then change the arrangement of the contact bridges according to the changed switching task and reinsert the contact bridge holder into the relevant device.
All of this work for converting a make contact into a break contact or vice versa is sometimes very complicated, but in any case very cumbersome and time-consuming, and it can only be carried out by the hand of a specialist who knows the structure of the electrical switching device in question exactly.

Ein zu Anfang erläutertes Schaltgerät ist bereits aus dem Dokument FR-A-2 352 388 bekannt, wobei wie gesagt eine Umwandlung von einem Schliesser in einen Öffner und umgekehrt vorgenommen werden kann. Bei einer dieser vorgeschlagenen Konstruktion ist ein Drehkörper vorhanden, der jeweils um 180° gedreht werden kann und der je nach Drehstellung unterschiedliche Anschläge für Verlängerungsteile der Kontaktbrücken bildet. Bei einer anderen vorgeschlagenen Konstruktion wird ein Isolierkörper entgegen der Kraft der Druckfeder in axialer Richtung zwischen zwei Endstellungen verschoben. Auch in diesem Falle kommen Verlängerungsteile der Kontaktbrücken zu unterschiedlichen Anschlägen und damit wahlweise zur Umwandlung von einem Schliesser in einen Öffner oder umgekehrt.A switching device explained at the beginning is already known from document FR-A-2 352 388, and as said, a conversion from a make contact to a break contact and vice versa can be carried out. In one of these proposed designs, there is a rotating body which can be rotated through 180 ° and which, depending on the rotating position, forms different stops for extension parts of the contact bridges. In another proposed construction, an insulating body is moved against the force of the compression spring in the axial direction between two end positions. In this case too, extension parts of the contact bridges come to different stops and thus optionally to convert from a make contact into a break contact or vice versa.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, ein elektrisches Schaltgerät zu schaffen, das sehr kompakt gestaltet werden kann und das nur einen geringen Materialaufwand für die Umschaltmöglichkeit von einem Öffner in einen Schliesser und umgekehrt erfordert.In contrast, the invention has for its object to provide an electrical switching device that can be made very compact and that requires only a small amount of material for switching from an opener to a closer and vice versa.

Die gestellte Aufgabe wird, ausgehend von dem zu Anfang erläuterten elektrischen Schaltgerät, dadurch gelöst, dass zwei feststehende Kontaktanschlussschienen vorgesehen sind, dass die eine Kontaktbrücke auf der einen und die andere Kontaktbrücke auf der anderen Seite der Kontaktanschlussschienen vorgesehen sind, dass der Schieber als parallel zu den beiden Kontaktbrükken verschiebbare Platte ausgebildet ist, dass senkrecht zu der Platte mindestens zwei isolierte Vorsprünge an dieser angeordnet sind, welche in Hubrichtung des Kontaktbrückenhalters um die Dicke der Kontaktanschlussschienen zuzüglich der Dicke der hieran befindlichen beiderseitigen Festkontaktstücke zueinander versetzt sind, so dass der eine Vorsprung in der einen Endstellung des Schiebers zwischen die eine Kontaktbrücke und die eine Kontaktanschlussschiene und der andere Vorsprung in der anderen Endstellung des Schiebers zwischen die andere Kontaktbrücke und die andere Kontaktanschlussschiene isolierend eingreifen.The task is solved, starting from the electrical switching device explained at the beginning, in that two fixed contact connection rails are provided, that one contact bridge is provided on one side and the other contact bridge on the other side of the contact connection rails, that the slide is considered parallel to the two contact bridges, the displaceable plate is designed so that at least two insulated projections are arranged perpendicular to the plate, which are offset from one another in the stroke direction of the contact bridge holder by the thickness of the contact connecting rails plus the thickness of the fixed contact pieces on both sides, so that the one projection in the one end position of the slide between the one contact bridge and the one contact connection rail and the other projection in the other end position of the slide between the other contact bridge and the other contact connection rail engage in an insulating manner.

Eine weitere Lösung der gestellten Aufgabe ergibt sich dadurch, dass in einem Kontaktbrückenhalter zwei parallel und mit Abstand voneinander unter Federdruck gehaltene Kontaktbrücken beiderseitig der Kontaktanschlussschienen angeordnet sind, und dass zwischen den Kontaktbrücken als Vorrichtung ein Mittelstück vorgesehen ist, derart, dass in der einen Endstellung beide Kontaktbrücken in abgehobener Lage gehalten sind und bei Betätigung die eine Kontaktbrücke einen Schliesser bildet und dass in der anderen Endstellung die andere Kontaktbrücke in Kontaktlage gehalten ist und bei Betätigung einen Öffner bildet.A further solution to the problem arises from the fact that two contact bridges, which are held parallel and at a distance from one another under spring pressure, are arranged on both sides of the contact connecting rails in a contact bridge holder, and that a middle piece is provided as a device between the contact bridges, such that in the one end position both Contact bridges are held in the raised position and when actuated one contact bridge forms a make contact and that in the other end position the other contact bridge is held in contact position and forms an opener when actuated.

Ausserdem wird alternativ vorgeschlagen, dass die Vorrichtung einen bewegbar gelagerten Körper aufweist, welcher einerseits auf die Kontaktbrücke einwirkt und andererseits eine Rolle trägt, die mit einer zur Betätigung des Schaltgerätes verschiebbaren Kurvenführung zusammenwirkt, die derart gestaltet ist, dass die Kontaktbrücke wahlweise einen Schliesser oder einen Öffner bildet.In addition, it is alternatively proposed that the device has a movably mounted body which, on the one hand, contacts the contact acts on the bridge and on the other hand carries a role that interacts with a sliding guide for actuating the switching device, which is designed such that the contact bridge optionally forms a closer or an opener.

Die wesentlichen Vorteile sind, dass das Schaltgerät in der Baulänge nicht über Schaltgeräte hinausgeht, die bisher ohne die Umschaltmöglichkeit von Öffner in Schliesser und umgekehrt gestaltet worden sind. Ferner kommt man mit einem Paar Kontaktanschlussschienen aus und die Kontaktbrücken können symmetrisch und massemässig klein bleiben.The main advantages are that the length of the switching device does not go beyond switching devices that have so far been designed without the possibility of switching from normally closed to normally open and vice versa. Furthermore, you can get by with a pair of contact connection rails and the contact bridges can remain symmetrical and small in size.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen 2 bis 7, 9, 10 und 12 bis 15.Advantageous embodiments of the invention result from subclaims 2 to 7, 9, 10 and 12 to 15.

Anhand der Zeichnung seien nachfolgend Ausführungsbeispiele der Erfindung, die im Schema dargestellt sind, näher beschrieben und zwar zeigen

  • Figur 1 ein Kontaktsystem mit einer Kontaktbrücke in der Anordnung als Schliesser nach dem Stand der Technik,
  • Figur 2 ein Kontaktsystem mit einer Kontaktbrücke in der Anordnung als Öffner nach dem Stand der Technik,
  • Figur 3 ein Ausführungsbeispiel der Erfindung mit einem Kontaktsystem in der Anordnung als Schliesser,
  • Figur 4 das Kontaktsystem gemäss Figur 3, jedoch in der Anordnungsweise als Öffner,
  • Figur 5 einen Querschnitt hierzu gemäss Schnittlinie V-V in Figur 4,
  • Figur 6 eine perspektivische Darstellung eines Einzelteiles aus den Figuren 3 bis 5, nämlich eines Schiebers,
  • Figur 7 ein weiteres Ausführungsbeispiel der Erfindung entsprechend Figur 3, jedoch mit beiderseitiger Kontaktunterbrechung als Schliesser,
  • Figur 8 das Ausführungsbeispiel gemäss Figur 7, jedoch in der Anordnungsweise als Öffner,
  • Figur 9 eine perspektivische Ansicht des Schiebers aus den Figuren 7 und 8,
  • Figur 10 ein Kontaktsystem mit zwei Kontaktbrücken nach dem Stand der Technik,
  • Figur 11 einen Schnitt hierzu gemäss Schnittlinie XI-XI in Figur 10,
  • Figur 12 ein anderes Ausführungsbeispiel der Erfindung mit einem Kontaktsystem als Schliesser,
  • Figur 13 einen Querschnitt hierzu gemäss Schnittlinie XIII-XIII in Figur 12,
  • Figur 14 das Ausführungsbeispiel gemäss Figur 12, jedoch als Öffner,
  • Figur 15 einen Schnitt hierzu gemäss Schnittlinie XV-XV in Figur 14,
  • Figur 16 eine Vorderansicht auf ein Einzelteil aus den Figuren 12 und 14, nämlich auf ein Mittelstück,
  • Figur 17 eine Seitenansicht zu Figur 16,
  • Figur 18 eine perspektivische Ansicht eines Teiles eines anderen Ausführungsbeispiels der Erfindung,
  • Figur 19 einen Vertikalschnitt hierzu gemäss Schnittlinie XIX-XIX in Figur 18,
  • Figur 20 einen Horizontalschnitt hierzu gemäss Schnittlinie XX-XX in Figur 19,
  • Figur 21 eine Ansicht entsprechend Figur 19, jedoch in einer anderen Betriebsstellung,
  • Figur 22 eine perspektivische Darstellung einer Einzelheit aus Figur 18,
  • Figur 23 einen Horizontalschnitt entsprechend Figur 20, jedoch in einer anderen Betriebsstellung,
  • Figur 24 eine perspektivische Darstellung eines Teiles eines weiteren Ausführungsbeispiels der Erfindung,
  • Figur 25 eine Darstellung entsprechend Figur 24, jedoch in einer anderen Betriebsstellung,
  • Figur 26 eine perspektivische Darstellung mit Vertikalschnitt eines Einzelteils aus Figur 25,
  • Figur 27 eine Seitenansicht hierzu in Richtung des Pfeiles XXVII-XXVII und Figur 28 eine Draufsicht zu Figur 27.
Based on the drawing, exemplary embodiments of the invention, which are shown in the diagram, are described in more detail below and show
  • 1 shows a contact system with a contact bridge in the arrangement as a closer according to the prior art,
  • FIG. 2 shows a contact system with a contact bridge in the arrangement as an opener according to the prior art,
  • FIG. 3 shows an exemplary embodiment of the invention with a contact system arranged as a make contact,
  • FIG. 4 the contact system according to FIG. 3, but in the arrangement as an opener,
  • FIG. 5 shows a cross section according to section line VV in FIG. 4,
  • FIG. 6 shows a perspective illustration of an individual part from FIGS. 3 to 5, namely a slide,
  • FIG. 7 shows a further exemplary embodiment of the invention corresponding to FIG. 3, but with contact interruption on both sides as a make contact,
  • FIG. 8 shows the exemplary embodiment according to FIG. 7, but in the arrangement as an opener,
  • FIG. 9 shows a perspective view of the slide from FIGS. 7 and 8,
  • FIG. 10 shows a contact system with two contact bridges according to the prior art,
  • FIG. 11 shows a section in accordance with section line XI-XI in FIG. 10,
  • FIG. 12 shows another exemplary embodiment of the invention with a contact system as a make contact,
  • FIG. 13 shows a cross section according to section line XIII-XIII in FIG. 12,
  • FIG. 14 shows the exemplary embodiment according to FIG. 12, but as an opener,
  • FIG. 15 shows a section in accordance with section line XV-XV in FIG. 14,
  • FIG. 16 shows a front view of an individual part from FIGS. 12 and 14, namely a central piece,
  • FIG. 17 shows a side view of FIG. 16,
  • FIG. 18 shows a perspective view of part of another exemplary embodiment of the invention,
  • FIG. 19 shows a vertical section in accordance with section line XIX-XIX in FIG. 18,
  • FIG. 20 shows a horizontal section in accordance with section line XX-XX in FIG. 19,
  • FIG. 21 shows a view corresponding to FIG. 19, but in a different operating position,
  • FIG. 22 shows a perspective illustration of a detail from FIG. 18,
  • FIG. 23 shows a horizontal section corresponding to FIG. 20, but in a different operating position,
  • FIG. 24 shows a perspective illustration of part of a further exemplary embodiment of the invention,
  • FIG. 25 shows a representation corresponding to FIG. 24, but in a different operating position,
  • FIG. 26 shows a perspective illustration with a vertical section of an individual part from FIG. 25,
  • 27 shows a side view of this in the direction of the arrow XXVII-XXVII and FIG. 28 shows a top view of FIG. 27.

Die Figuren 1 und 2 veranschaulichen ein Kontaktsystem nach dem Stand der Technik, wie es z.B. als sogenannter Hilfskontakt in einem Schütz eingesetzt ist. Das Kontaktsystem weist zwei feststehende Kontaktanschlussschienen 1 und 2 mit Kontaktstücken 3 und 4 sowie eine bewegliche Kontaktbrücke 5 mit Kontaktstücken 6 und 7 auf. Die Kontaktbrücke 5 ist in einem Kontaktbrückenhalter 8 gehalten, der im wesentlichen als Doppelrahmen ausgebildet ist und zwei Durchbrüche bzw. Fenster 9, 10 sowie zwei äussere Stege 11 und 12 und einen inneren Steg 13 aufweist. Gemäss Figur 1 ist die Kontaktbrücke 5 in dem Fenster 10 eingesetzt und liegt in Ruhestellung auf der Oberseite des inneren Steges 13 an. Zwischen Kontaktbrücke 5 und Steg 11 ist eine Kontaktdruckfeder 14 eingesetzt. Das Kontaktsystem gemäss Figur 1 stellt einen Schliesser dar. Die Wirkungsweise ist im wesentlichen folgende. Der Kontaktbrückenhalter 8 wird durch Wirkung einer nicht gezeichneten Feder in oberster Ruhestellung gehalten. Bei einem Schütz ist der Kontaktbrückenhalter mit einem beweglichen Anker eines Magnetsystems verbunden, wobei der Anker ebenfalls durch die besagte Feder in oberster Ruhestellung gehalten ist. Wenn das Schütz anzieht oder wenn von Hand beispielsweise über einen nicht gezeichneten Druckknopf am oberen Ende des Kontaktbrückenhalters dieser in Richtung des Pfeiles 15 nach unten bewegt wird, wird die Kontaktbrücke 5 mitgenommen, bis die Kontaktstücke 6, 7 auf die Kontaktstücke 3, 4 treffen. Der Kontaktbrückenhalter 8 wird dann meist noch ein kleines Stück weiter nach unten bewegt, so dass die Kontakte unter dem Druck der Kontaktdruckfeder stehen. Wenn man dieses Kontaktsystem von einem Schliesser nach Figur 1 in einen Öffner nach Figur 2 umwandeln will, ist es, wie ein Vergleich zwischen den beiden Figuren 1 und 2 verdeutlicht, erforderlich, zunächst einmal den Kontaktbrückenhalter 8 mit der Kontaktbrücke 5 aus dem Gerät herauszunehmen. Sodann muss man die Kontaktanschlussschienen 1 und 2 um 180° verdrehen, so dass die Kontaktstücke 3 und 4 nach unten zu liegen kommen. Dazu ist es erforderlich, die Verdrahtung mit den Kontaktanschlussschienen zu lösen und anschliessend wieder zu befestigen. Ferner muss die Kontaktbrücke 5 mit der Kontaktdruckfeder 14 aus dem oberen Fenster 10 herausgenommen und in das untere Fenster 9 in umgekehrter Lage wieder eingesetzt werden. Ein einfaches Umdrehen des Kontaktbrückenhalters um 180° ist meist nicht möglich, weil in dem Kontaktbrückenhalter vielfach neben-oder übereinander noch weitere Kontaktbrücken vorgesehen sind. Nach dem Wiedereinsetzen des Kontaktbrückenhalters 8 liegen in Ruhestellung die Kontakte 6, 7 der Kontaktbrücke 5 unter dem Druck der Kontaktdruckfeder 14 an den Kontaktstücken 3, 4 an. Wenn man nun das Kontaktsystem betätigt, so dass der Kontaktbrückenhalter 8 in Richtung des Pfeiles 15 verschoben wird, gelangt die Kontaktbrücke 5 zur Anlage an der unteren Seite des inneren Steges 13 und wird dann mitgenommen, so dass die Kontakte öffnen. Wie aus der vorstehenden Beschreibung erkenntlich wird, ist es ausserordentlich umständlich und arbeitsaufwendig, eine Umwandlung von einem Schliesser in einen Öffner oder umgekehrt durchzuführen.Figures 1 and 2 illustrate a contact system according to the prior art, such as is used as a so-called auxiliary contact in a contactor. The contact system has two fixed contact connecting rails 1 and 2 with contact pieces 3 and 4 and a movable contact bridge 5 with contact pieces 6 and 7. The contact bridge 5 is held in a contact bridge holder 8, which is essentially designed as a double frame and has two openings or windows 9, 10 and two outer webs 11 and 12 and an inner web 13. According to Figure 1, the contact bridge 5 is inserted in the window 10 and rests on the top of the inner web 13 in the rest position. A contact pressure spring 14 is inserted between contact bridge 5 and web 11. The contact system according to FIG. 1 represents a make contact. The mode of operation is essentially as follows. The contact bridge holder 8 is held in the uppermost rest position by the action of a spring, not shown. In the case of a contactor, the contact bridge holder is connected to a movable armature of a magnet system, the armature also being held in the uppermost rest position by said spring. If the contactor picks up or if it is moved by hand, for example via a push button (not shown) at the upper end of the contact bridge holder in the direction of arrow 15, the contact bridge 5 is carried along until the contact pieces 6, 7 meet the contact pieces 3, 4. The contact bridge holder 8 is then usually moved a little further down, so that the contacts are under the pressure of the contact pressure spring. If one wants to convert this contact system from a closer according to FIG. 1 into an opener according to FIG. 2, it is necessary, as a comparison between the two FIGS. 1 and 2 shows, to first remove the contact bridge holder 8 with the contact bridge 5 from the device. Then you have to turn the contact connection rails 1 and 2 by 180 ° so that the contact pieces 3 and 4 come to lie down. For this it is necessary This means loosening the wiring with the contact connection rails and then reattaching them. Furthermore, the contact bridge 5 with the contact pressure spring 14 must be removed from the upper window 10 and reinserted into the lower window 9 in the opposite position. A simple reversal of the contact bridge holder by 180 ° is usually not possible, because in the contact bridge holder there are often additional contact bridges next to or one above the other. After the contact bridge holder 8 has been reinserted, the contacts 6, 7 of the contact bridge 5 rest on the contact pieces 3, 4 under the pressure of the contact pressure spring 14 in the rest position. If you now operate the contact system so that the contact bridge holder 8 is moved in the direction of arrow 15, the contact bridge 5 comes to rest on the lower side of the inner web 13 and is then carried along so that the contacts open. As can be seen from the above description, it is extremely cumbersome and labor-intensive to convert from a closer to an opener or vice versa.

Demgegenüber zeigen die Figuren 3 bis 6 ein Ausführungsbeispiel eines erfindungsgemässen Schaltgerätes, bei welchem die Umwandlung von einem Öffner in einen Schliesser oder umgekehrt ausserordentlich einfach vorgenommen werden kann, ohne dass irgendwelche Verdrahtungen gelöst werden müssten oder Montagemassnahmen an dem Kontaktbrückenhalter vorgenommen werden müssten. Soweit die Teile mit denjenigen nach dem Stand der Technik gemäss Figur 1 und 2 übereinstimmen, sind sie mit den gleichen Bezugszeichen versehen worden. Es ist hier eine Vorrichtung, im vorliegenden Ausführungsbeispiel ein Schieber 21, vorgesehen, welcher zwischen zwei Endstellungen bewegbar ist. Die eine Endstellung zeigt Figur 3, die andere Endstellung, entsprechend der Verschieberichtung 24, zeigt Figur 4. Dieser Schieber ist derart ausgestaltet und wirkt derart auf das Kontaktsystem ein, dass das Kontaktsystem in der einen Endstellung des Schiebers einen Schliesser und in der anderen Endstellung einen Öffner ergibt. Dazu sind bei diesem Ausführungsbeispiel in dem Kontaktbrükkenhalter 8 zwei parallel und mit Abstand voneinander gehaltene Kontaktbrücken 5 und 16 beiderseitig der Kontaktanschlussschienen 1 und 2 angeordnet. Die beiden Kontaktbrücken 5 und 16 stehen unter Einwirkung der Kontaktdruckfedern 14 und 25. Die Kontaktanschlussschienen tragen beiderseitig Kontaktstücke, also auf der Oberseite die Kontaktstücke 3 und 4 und auf der Unterseite die Kontaktstücke 19 und 20. Die zweite Kontaktbrücke 16 ist ebenfalls mit Kontaktstücken 17 und 18 ausgestattet. Der Schieber 21 trägt zwei isolierte Vorsprünge 22 und 23, die derart angeordnet sind, dass der eine Vorsprung 22 in der einen Endstellung des Schiebers 21 gemäss Figur 4 zwischen die Kontaktbrücke 5 und Kontaktanschlussschiene 1 auf der einen Seite dieser Kontaktanschlussschiene und der andere Vorsprung 23 in der anderen Endstellung des Schiebers 21 gemäss Figur 3 zwischen Kontaktbrücke 16 und Kontaktanschlussschiene 2 auf der anderen Seite dieser Kontaktanschlussschiene eingreift.In contrast, FIGS. 3 to 6 show an exemplary embodiment of a switching device according to the invention, in which the conversion from a break contact to a make contact or vice versa can be carried out extremely easily, without any wiring having to be loosened or assembly measures having to be carried out on the contact bridge holder. Insofar as the parts correspond to those according to the prior art according to FIGS. 1 and 2, they have been given the same reference numerals. A device is provided here, in the present exemplary embodiment a slide 21, which can be moved between two end positions. One end position is shown in FIG. 3, the other end position, corresponding to the direction of displacement 24, is shown in FIG. 4. This slide is designed and acts on the contact system in such a way that the contact system has a closer in one end position of the slide and one in the other end position NC contact results. For this purpose, two contact bridges 5 and 16, which are held parallel and at a distance from one another, are arranged on both sides of the contact connection rails 1 and 2 in the contact bridge holder 8 in this exemplary embodiment. The two contact bridges 5 and 16 are under the influence of the contact pressure springs 14 and 25. The contact connecting rails carry contact pieces on both sides, that is to say the contact pieces 3 and 4 on the upper side and the contact pieces 19 and 20 on the underside. The second contact bridge 16 is also provided with contact pieces 17 and 18 equipped. The slide 21 carries two insulated projections 22 and 23, which are arranged such that the one projection 22 in the one end position of the slide 21 according to FIG. 4 between the contact bridge 5 and the contact connecting rail 1 on one side of this contact connecting rail and the other projection 23 in the other end position of the slide 21 according to FIG. 3 engages between the contact bridge 16 and the contact connecting rail 2 on the other side of this contact connecting rail.

Die Wirkungsweise ist im wesentlichen folgende. In der Stellung des Schiebers 21 gemäss Figur 3 wird der Stromdurchgang zwischen den Kontaktanschlussschienen 1 und 2 durch den isolierten Vorsprung 23 verhindert. Wenn das Kontaktsystem nun durch Bewegen des Kontaktbrückenhalters 8 in Richtung des Pfeiles 15 betätigt wird, kommen die Kontaktstücke 6 und 7 der Kontaktbrücke 5 zur Anlage an den Kontaktstükken 3 und 4, so dass ein Schliesser gebildet ist. In der anderen Stellung des Schiebers nach Figur 4 ist der Vorsprung 23 ausser Eingriff, so dass die Kontaktbrücke 16 mit den Kontaktstücken anliegt. Dagegen greift nun der isolierte Vorsprung 22 zwischen die Kontaktstücke 3 und 7 ein. Bei Betätigung des Kontaktsystems öffnet die Kontaktbrücke 16, so dass ein Öffner gebildet ist. Ein Wiedereinschalten mit der Kontaktbrücke 5 kann wegen des Eingriffs des isolierten Vorsprungs 22 nicht erfolgen.The principle of operation is as follows. In the position of the slide 21 according to FIG. 3, the passage of current between the contact connection rails 1 and 2 is prevented by the insulated projection 23. If the contact system is now actuated by moving the contact bridge holder 8 in the direction of arrow 15, the contact pieces 6 and 7 of the contact bridge 5 come into contact with the contact pieces 3 and 4, so that a closer is formed. In the other position of the slide according to FIG. 4, the projection 23 is disengaged, so that the contact bridge 16 bears against the contact pieces. In contrast, the insulated projection 22 now engages between the contact pieces 3 and 7. When the contact system is actuated, the contact bridge 16 opens, so that an opener is formed. The contact bridge 5 cannot be switched on again because of the engagement of the insulated projection 22.

Wie die Zeichnungen ferner verdeutlichen, ist der Schieber 21 vorteilhafterweise als parallel zu den beiden Kontaktbrücken 5, 16 verschiebbare Platte ausgebildet. Die senkrecht zur Platte angeordneten Vorsprünge 22 und 23 sind dabei in der Höhe etwa um die Dicke der Kontaktanschlussschienen 1 bzw. 2 und der hieran befindlichen beiderseitigen Festkontaktstücke 3, 4 und 19, 20 versetzt.As the drawings further illustrate, the slide 21 is advantageously designed as a plate which can be displaced parallel to the two contact bridges 5, 16. The projections 22 and 23 arranged perpendicular to the plate are offset in height approximately by the thickness of the contact connecting rails 1 and 2 and the fixed contact pieces 3, 4 and 19, 20 located thereon.

Von Vorteil für das Eingreifen ist ferner, dass die Vorsprünge 22, 23 nach Figur 6 in Verschieberichtung des Schiebers, d.h. jeweils nach innen zu keilförmig gestaltet bzw. verjüngt sind.It is also advantageous for the engagement that the projections 22, 23 according to FIG. 6 in the direction of displacement of the slide, i.e. are each designed inwards to be wedge-shaped or tapered.

Weitere vorteilhafte Ausgestaltungen des Schiebers sind folgende. Einmal ist der plattenförmige Schieber 21 länger als die Kontaktbrücken 5, 16 ausgebildet, wobei die Vorsprünge 22 und 23 nahe den Plattenenden angeordnet sind, so dass sie beim jeweiligen Einwärtsschieben in Richtung des Pfeiles 24 parallel zu den Kontaktbrücken 5, 16 in Eingriff kommen. Bei dieser platzsparenden Gestaltungweise ist es meist möglich, den Schieber auch nachträglich in bestehende Geräte einzusetzen, ohne dass es grosser Umbauarbeiten bedarf. Der Schieber kann durch nichtgezeichnete Führungsleisten mit Anschlägen oder ähnlichen wegbegrenzten Führungen zweckmässig auf der Innenseite der Wandung eines in Figur 5 schematisch gezeichneten Gehäuses 27 gehalten werden. Zweckmässigerweise ist der Schieber 21 derart ausgebildet und im Gerätegehäuse 27 untergebracht, dass er von aussen sichtbar und/oder betätigbar ist. Dazu kann man z.B. am Deckel des Gehäuses oberhalb des Schiebers eine Öffnung 28 vorsehen, durch welche man ein Werkzeug einführen und damit den Schieber aus der einen Endstellung in die andere verschieben kann. Man kann aber auch an der Oberseite des Schiebers einen Vorsprung vorsehen, der bis in oder durch die Öffnung 28 hindurchragt, so dass man die Verstellung von Hand vornehmen kann.Further advantageous configurations of the slide are as follows. On the one hand, the plate-shaped slide 21 is longer than the contact bridges 5, 16, the projections 22 and 23 being arranged near the plate ends, so that they come into engagement parallel to the contact bridges 5, 16 when they are pushed in in the direction of arrow 24. With this space-saving design, it is usually possible to retrofit the slide into existing devices without the need for major renovation work. The slide can expediently be held on the inside of the wall of a housing 27 shown schematically in FIG. 5 by guide rails (not shown) with stops or similar path-limited guides. The slide 21 is expediently designed and accommodated in the device housing 27 such that it is visible and / or actuatable from the outside. For this you can e.g. Provide an opening 28 on the cover of the housing above the slide, through which one can insert a tool and thus move the slide from one end position to the other. But you can also provide a projection on the top of the slide, which protrudes into or through the opening 28, so that you can make the adjustment by hand.

Von Vorteil ist es, den Schieber 21 mit möglichst von aussen sichtbaren Bezeichnungen zu versehen, welche je nach Stellung anzeigen, ob das Kontaktsystem als Schliesser oder Öffner wirksam ist. Die Bezeichnungen können beispielsweise nach Europa-Norm gestaltet sein. Der Schieber 21 und/oder die Vorsprünge 22, 23 sind aus isolierendem Material gebildet. Dabei ist es von Vorteil, vor allem die Vorsprünge, ggfs. aber auch denSchieber, aus lichtbogenfestem Material herzustellen.It is advantageous to provide the slide 21 with labels that are visible from the outside, if possible, which, depending on the position, indicate whether the contact system is effective as a closer or opener. The designations can, for example, be designed according to the European standard. The slider 21 and / or the projections 22, 23 are formed from insulating material. It is advantageous to make the protrusions, but possibly also the slide, from arc-proof material.

Um den Schieber 21 gegen unbeabsichtigtes Verschieben zu sichern, z.B. infolge Rüttelbewegungen beim Transport des Gerätes, sind zweckmässigerweise Rastvorrichtungen in bezug auf die beiden Endstellungen des Schiebers vorgesehen. Dies können z.B. Blattfedern sein, die in Kerben des Schiebers eingreifen.To secure the slide 21 against unintentional displacement, e.g. due to shaking movements when transporting the device, locking devices are expediently provided with respect to the two end positions of the slide. This can e.g. Be leaf springs that engage in notches of the slide.

Die Figuren 7 bis 9 veranschaulichen ein weiteres Ausführungsbeispiel eines erfindungsgemässen Schaltgerätes, welches im wesentlichen mit dem nach den Figuren 3 bis 6 übereinstimmt, so dass die dortigen Erläuterungen auch sinngemäss für dieses Ausführungsbeispiel gelten, wobei für die gleichen Teile auch die gleichen Bezugszeichen verwendet worden sind. Bei diesem Ausführungsbeispiel ist der Schieber 21 jedoch mit zwei Paaren von Vorsprüngen 22, 23 und 29, 30 für den wechselweisen Eingriff zwischen den Kontaktbrücken 5, 16 und den Kontaktanschlussschienen 1, 2 an beiden Enden der Kontaktbrükken versehen. Bei diesem Ausführungsbeispiel greifen also die Vorsprünge an beiden Enden der betreffenden Brücke ein und verhindern den Durchgang des elektrischen Stromes. Gemäss Figur 7 ist also der Stromdurchgang zwischen den Kontaktanschlussschienen 1, 2 und der Kontaktbrücke 16 unterbrochen. Bei Betätigung des Kontaktsystems können also nur die Kontakte der Kontaktbrücke 5 stromleitend auf diejenigen der Kontaktanschlussschienen 1, 2 treffen, so dass ein Schliesser gebildet ist. In der anderen Endstellung des Schiebers 21 gemäss Figur 8 greifen die anderen beiden Vorsprünge 22 und 30 ein, so dass in diesem Falle ein Öffner gebildet wird.FIGS. 7 to 9 illustrate a further exemplary embodiment of a switching device according to the invention, which essentially corresponds to that according to FIGS. 3 to 6, so that the explanations there also apply mutatis mutandis to this exemplary embodiment, the same reference numerals being used for the same parts . In this embodiment, however, the slide 21 is provided with two pairs of projections 22, 23 and 29, 30 for the alternating engagement between the contact bridges 5, 16 and the contact connecting rails 1, 2 at both ends of the contact bridges. In this embodiment, the projections engage at both ends of the bridge in question and prevent the passage of the electrical current. According to FIG. 7, the current passage between the contact connecting rails 1, 2 and the contact bridge 16 is interrupted. When the contact system is actuated, only the contacts of the contact bridge 5 can conductively meet those of the contact connecting rails 1, 2, so that a closer is formed. In the other end position of the slide 21 according to FIG. 8, the other two projections 22 and 30 engage, so that an opener is formed in this case.

Zum besseren Verständnis des nachfolgend erläuterten Ausführungsbeispiels nach den Figuren 12 bis 17 sei ein Kontaktsystem nach dem Stand der Technik anhand der Figuren 10 und 11 erläutert. Danach ist an sich bekannt, in einem Kontaktbrückenhalter 8 zwei Kontaktbrücken 5 bzw. 16 zu beiden Seiten der Kontaktanschlussschienen 1, 2 anzuordnen. Bei Betätigung öffnet zunächst die Kontaktbrücke 16, wonach dann anschliessend die Kontaktbrücke 5 wieder schliesst. Es geht hier also lediglich um einen besonderen Schaltvorgang, wobei nämlich beim einmaligen Betätigen bzw. Abwärtsdrücken des Kontaktbrückenhalters 8 zunächst der Kontakt geöffnet und anschliessend sofort wieder geschlossen wird. Von einem Umwandeln von Schliesser in Öffner oder umgekehrt kann hier keine Rede sein.For a better understanding of the exemplary embodiment according to FIGS. 12 to 17 explained below, a contact system according to the prior art will be explained with reference to FIGS. 10 and 11. It is then known per se to arrange two contact bridges 5 and 16 in a contact bridge holder 8 on both sides of the contact connecting rails 1, 2. When actuated, the contact bridge 16 first opens, after which the contact bridge 5 then closes again. It is therefore only a question of a special switching operation, namely when the contact bridge holder 8 is actuated or pressed down once, the contact is first opened and then immediately closed again. There can be no question of converting make contact into break contact or vice versa.

Demgegenüber veranschaulichen die Figuren 12 bis 17 ein weiteres Ausführungsbeispiel eines Schaltgerätes nach der Erfindung, wobei wiederum für gleiche oder gleichwirkende Teile die gleichen Bezugszeichen wie in den vorauserläuterten Ausführungsbeispielen verwendet worden sind. Bei diesem Ausführungsbeispiel ist der oben erläuterte innere Steg 13 des Kontaktbrückenhalters 8 mindestens zum Teil weggefallen. Statt dessen ist zwischen den Kontaktbrücken 5 und 16 ein Mittelstück 31 angeordnet, welches zwischen zwei Endstellungen bewegbar ist, derart, dass in der einen Endstellung gemäss Figur 12 und 13 beide Kontaktbrücken 5, 16 in abgehobener Lage gehalten sind und bei Betätigung die eine Kontaktbrücke 5 einen Schliesser bildet, und dass in der anderen Endstellung gemäss Figur 14 die andere Kontaktbrücke 16 in Kontaktlage gehalten ist und bei Betätigung einen Öffner bildet. Wie in den Zeichnungen zu erkennen ist, ist das Mittelstück 31 vorteilhafterweise als Rechtecksstück mit abgerundeten Ecken ausgebildet und um eine aussermittig versetzte Achse 32 schwenkbar gelagert. Nach den Figuren 12 und 13 bietet das Kontaktsystem einen Schliesser und nach den Figuren 14 und 15 einen Öffner. Die Umwandlung von Schliesser auf Öffner erfolgt in einfacher Weise dadurch, dass das rechteckige Mittelstück 31 aus der Stellung gemäss Figur 12 im Uhrzeigersinn um 90° um die Achse 32 gedreht wird. Die Achse 32 ist senkrecht zur gemeinsamen Mittelebene der Kontaktbrücken 5, 16 in dem Kontaktbrükkenhalter 8 gelagert. Vorteilhafterweise ist die Achse mindestens an einem Ende von aussen zugänglich, d.h. sie kann nach den Figuren 13 oder 15 bis zu den Aussenflächen des Kontaktbrükkenhalters 8 verlängert werden. An einem oder beiden Enden der Achse 32 kann man Kerben 33 vorsehen, in die man beispielsweise mittels eines Schraubenziehers eingreifen und die Umstellung vornehmen kann. Die Achse 32 kann auch so weit verlängert werden, dass sie bis zu einer Öffnung in der Gehäusewand des Gerätes reicht oder durch die Öffnung hindurchragt, so dass man die beschriebene Umstellung von ausserhalb des Gerätes ohne jede Montagearbeiten vornehmen kann. Es sei noch bemerkt, dass bei allen vorerläuterten Ausführungsbeispielen am oberen Ende des Kontaktbrückenhalters 8, wie in Figur 5 dargestellt ist, ein Stössel 26 oder ein Druckknopf zur Handbetätigung oder zur maschinellen Betätigung angeschlossen werden kann, der durch die Gehäusewand oder durch eine Öffnung im Dekkel des Gehäuses hindurchragt.In contrast, FIGS. 12 to 17 illustrate a further exemplary embodiment of a switching device according to the invention, the same reference numerals having been used for the same or equivalent parts as in the previously explained exemplary embodiments. In this exemplary embodiment, the inner web 13 of the contact bridge holder 8 explained above has been at least partially omitted. Instead, a middle piece 31 is arranged between the contact bridges 5 and 16, which is movable between two end positions, such that in the one end position according to FIGS. 12 and 13 both contact bridges 5, 16 are held in the raised position and, when actuated, the one contact bridge 5 forms a closer and that in the other end position according to FIG. 14 the other contact bridge 16 is held in contact position and forms an opener when actuated. As can be seen in the drawings, the center piece 31 is advantageously designed as a rectangular piece with rounded corners and is pivotably mounted about an axis 32 which is offset from the center. According to FIGS. 12 and 13, the contact system offers a closer and according to FIGS. 14 and 15 an opener. The conversion from make contact to break contact is carried out in a simple manner by rotating the rectangular center piece 31 from the position shown in FIG. 12 clockwise through 90 ° about the axis 32. The axis 32 is mounted perpendicular to the common center plane of the contact bridges 5, 16 in the contact bridge holder 8. The axis is advantageously accessible from the outside at least at one end, i.e. according to FIGS. 13 or 15, it can be extended up to the outer surfaces of the contact bridge holder 8. Notches 33 can be provided on one or both ends of the axis 32, which can be engaged, for example, by means of a screwdriver and the change can be made. The axis 32 can also be extended so far that it extends to an opening in the housing wall of the device or protrudes through the opening, so that the described changeover can be carried out from outside the device without any assembly work. It should also be noted that in all of the exemplary embodiments explained above, a plunger 26 or a push button for manual actuation or for mechanical actuation can be connected to the upper end of the contact bridge holder 8, as can be seen in the housing wall or through an opening in the cover of the housing protrudes.

Die Figuren 18 bis 22 veranschaulichen ein weiteres Ausführungsbeispiel des Schaltgerätes. Es sind hier wiederum feststehende Kontaktanschlussschienen 1, 2 sowie eine bewegliche Kontaktbrücke 5 vorgesehen, die unter dem Druck einer Kontaktdruckfeder 14 steht, wobei sich diese Kontaktdruckfeder 14 an einem beliebigen Widerlager 34 abstützt. Bei diesem Ausführungsbeispiel weist die Vorrichtung einen bewegbar gelagerten Körper 35 auf, welcher einerseits auf die Kontaktbrücke 5 einwirkt und andererseits eine Rolle 44 trägt, die mit einer zur Betätigung des Schaltgerätes verschiebbaren Kurvenführung zusammenwirkt, die derart gestaltet ist, dass die Kontaktbrücke 5 wahlweise einen Schliesser oder einen Öffner bildet. Bei diesem dargestellten Ausführungsbeispiel besteht die Kurvenführung aus zwei nebeneinander verlaufenden Führungsteilen 45 und 46. Der Körper 35 besitzt einen Schaft 36, an dessen einem, in der Zeichnung unteren, Ende beiderseitig Zapfen 38 und 39 vorgesehen sind, die in einem Schwenklager 40 herausnehmbar gehalten sind. Das Schwenklager 40 kann beispielsweise halbzylindrisch ausgebildet sein. An dem anderen Ende des Schaftes 36 ist ein Hammerkopf 37 bzw. eine hammerkopfartige Erweiterung vorgesehen, an dem mit Abstand voneinander auf einer Seite parallel zu den Zapfen 38 und 39 verlaufende Lagerzapfen 41 und 42 für den wahlweisen Aufsatz der Rolle 44 angebracht sind. Die Rolle 44 ist also am Körper 35 umsteckbar angebracht, so dass sie wahlweise an dem einen oder anderen Führungsteil 45 oder 46 anliegt. Die Führungsteile 45 und 46 besitzen gegeneinander versetzte Vertiefungen 48 und 50 sowie Vorsprünge 47 und 49. Durch diese Gestaltungsweise der beiden Führungsteile wird beim Ablaufen der Rolle an dem einen Führungsteil 46 die Kontaktbrücke 5 durch Druck der Kontaktdruckfeder 14 in Richtung auf die Kontaktanschlussschienen 1, 2 bewegt, weil die Rolle 44 von dem Vorsprung 49 über die Schrägfläche 52 auf die Vertiefung 50 (Figur 19) trifft, sobald das Führungsteil 46 in Richtung des Pfeiles 51 nach unten bewegt, das Schaltgerät also betätigt wird. Auf diese Weise wird also ein Schliesser gebildet. Zweckmässigerweise ist der Körper 35 in Verlängerung seines Schaftes 36 mit einem Handgriff 43 versehen, auf dem gleichzeitig auch eine von aussen sichtbare Beschriftung aufgebracht werden kann, die anzeigt, ob das Kontatksystem einen Schliesser oder einen Öffner bildet. Um das Kontaktsystem von dem beschriebenen Schliesser in einen Öffner umzuwandeln, braucht man nur den Körper 35 aus dem Schwenklager 40 herauszulösen. Sodann wird, wie Figur 22 verdeutlicht, die Rolle 44 von dem Lagerzapfen 41 auf den anderen Lagerzapfen 42 aufgesteckt. Wenn man nun den Körper 35 in Richtung des Pfeiles 54 um die Längsachse des Schaftes 36 um 180° schwenkt und den Körper dann, wie beschrieben, wieder in das Schwenklager einsetzt, liegt die Rolle 44 an dem Führungsteil 45, und zwar in Ruhestellung nun an der Vertiefung 48 an. Wenn man nun das Führungsteil 45 in Richtung des Pfeiles 51 bei Betätigung des Schaltgerätes nach unten führt, läuft die Rolle 44 von der Vertiefung 48 über die Schrägfläche 53 auf den Vorsprung 47, wodurch in diesem Falle der Körper 35 derart geschwenkt wird, dass die mitgenommene Kontaktbrücke 5 abhebt und somit ein Öffner gebildet wird. Bei der Darstellung nach den Figuren 18 bis 21 bildet das Kontaktsystem also einen Schliesser, während nach der Umstellung gemäss Figur 23 ein Öffner gebildetwird.Figures 18 to 22 illustrate a further embodiment of the switching device. Here again fixed contact connecting rails 1, 2 and a movable contact bridge 5 are provided, which is under the pressure of a contact pressure spring 14, this contact pressure spring 14 being supported on any abutment 34. In this embodiment, the device has a movably mounted body 35 which acts on the one hand on the contact bridge 5 and on the other hand carries a roller 44 which interacts with a cam guide which can be displaced to actuate the switching device and which is designed such that the Contact bridge 5 optionally forms a closer or an opener. In this exemplary embodiment shown, the curve guide consists of two guide parts 45 and 46 running alongside one another. The body 35 has a shaft 36, on the one end of which, in the lower drawing, ends, pins 38 and 39 are provided on both sides, which are held removably in a pivot bearing 40 . The pivot bearing 40 can for example be semi-cylindrical. At the other end of the shaft 36, a hammer head 37 or a hammer-head-like extension is provided, on which, at a distance from one another, bearing pins 41 and 42 for the optional attachment of the roller 44 are mounted on one side parallel to the pins 38 and 39. The roller 44 is therefore attached to the body 35 so that it can be placed against one or the other guide part 45 or 46. The guide parts 45 and 46 have mutually offset depressions 48 and 50 as well as projections 47 and 49. This design of the two guide parts makes the contact bridge 5 by pressing the contact pressure spring 14 in the direction of the contact connecting rails 1, 2 when the roller runs on the one guide part 46 moved because the roller 44 hits the recess 50 (FIG. 19) from the projection 49 via the inclined surface 52 as soon as the guide part 46 moves downward in the direction of the arrow 51, that is to say the switching device is actuated. In this way, a make contact is formed. The body 35 is expediently provided in the extension of its shaft 36 with a handle 43, on which at the same time an inscription visible from the outside can be applied, which indicates whether the contact system forms a closer or an opener. In order to convert the contact system from the closer described into an opener, one only needs to detach the body 35 from the pivot bearing 40. Then, as shown in FIG. 22, the roller 44 is pushed from the bearing journal 41 onto the other bearing journal 42. If you now pivot the body 35 in the direction of arrow 54 about the longitudinal axis of the shaft 36 by 180 ° and then, as described, reinsert the body into the pivot bearing, the roller 44 rests on the guide part 45, in the rest position now of the recess 48. If you now guide the guide member 45 in the direction of arrow 51 when actuating the switching device down, the roller 44 runs from the recess 48 over the inclined surface 53 on the projection 47, whereby in this case the body 35 is pivoted such that the entrained Contact bridge 5 lifts off and thus an opener is formed. In the representation according to FIGS. 18 to 21, the contact system thus forms a closer, while an opener is formed after the changeover according to FIG.

Die Figuren 24 bis 28 veranschaulichen schliesslich ein weiteres Ausführungsbeispiel eines erfindungsgemässen Schaltgerätes, welches in der Wirkung im wesentlichen demjenigen nach den Figuren 18 bis 22 entspricht, so dass die dortigen Erläuterungen sinngemäss gelten. In diesem letzteren Ausführungsbeispiel sind jedoch einige Änderungen in konstruktiver Hinsicht vorgesehen, die für die praktische Bedienung von besonderem Vorteil sind. Bei diesem Ausführungsbeispiel ist das Kopfstück 56 nur nach einer Seite des Körpers 35 vorragend gestaltet, welches wiederum mit der Kontaktbrücke 5 zusammenwirkt. Am oberen Ende des Schaftes 36 ist ein Achslager 57 für die Achse 55 der Rolle 44 vorgesehen, die ihrerseits in einer gabelförmigen Aussparung 58 läuft. Als Führung ist in diesem Falle nur ein einziges Bauteil 60 vorgesehen, welches an einem nicht gezeichneten Betätigungsglied lösbar und um 180° schwenkbar angebracht ist. Das Bauteil 60 weist mindestens einen Vorsprung 61 und eine Vertiefung 62 auf, derart, dass Vorsprung 61 und Vertiefung 62 beim Schwenken um 180° in ihrer Lage zu der Rolle 44 ausgetauscht sind.FIGS. 24 to 28 finally illustrate a further exemplary embodiment of a switching device according to the invention, the effect of which essentially corresponds to that of FIGS. 18 to 22, so that the explanations there apply analogously. In this latter embodiment, however, there are some changes in construction that are of particular advantage for practical operation. In this exemplary embodiment, the head piece 56 is designed to project only on one side of the body 35, which in turn interacts with the contact bridge 5. At the upper end of the shaft 36, an axle bearing 57 is provided for the axle 55 of the roller 44, which in turn runs in a fork-shaped recess 58. In this case, only a single component 60 is provided as a guide, which is detachably attached to an actuator (not shown) and can be pivoted through 180 °. The component 60 has at least one projection 61 and a depression 62, such that the projection 61 and depression 62 are exchanged in their position relative to the roller 44 when pivoted through 180 °.

Wenn das Schaltgerät betätigt wird und damit das Bauteil 60 gemäss Figur 24 in Richtung des Pfeiles 64 nach unten verschoben wird, läuft die Rolle 44 von dem Vorsprung 61 über die Schrägfläche 63 ab und schwenkt damit mitsamt dem Körper 35 und dem Kopfstück 56 in Richtung des Pfeiles 59, so dass die unter dem Druck der Kontaktdruckfeder 14 stehende Kontaktbrücke 5 mitgehen und damit einen Schliesser bilden kann.When the switching device is actuated and component 60 is shifted downward in the direction of arrow 64 in accordance with FIG. 24, roller 44 runs from projection 61 over inclined surface 63 and thus swivels together with body 35 and head piece 56 in the direction of Arrow 59, so that the contact bridge 5, which is under pressure from the contact pressure spring 14, can go along and thus form a closer.

Wenn man nun das Bauteil 60 aus dem nicht gezeichneten Betätigungsglied, z.B. aus einer Schlitzführung mit Anschlägen, herauszieht und um 180° dreht und wieder einschiebt, kommt das Bauteil 60 in die umgekehrte Lage nach Figur 25. In Ruhestellung liegt dann die Rolle 44 an der Vertiefung 62 an. Wenn nun das Schaltgerät wieder betätigt und damit das Bauteil 60 in Richtung des Pfeiles 64 nach unten bewegt wird, gelangt die Rolle über die anschliessende Schrägfläche auf den Vorsprung 66, womit der Körper in Richtung des Pfeiles 65 ausschwenkt und die Kontaktbrücke 5 mitnimmt. Somit ist ein Öffner gebildet.If you now the component 60 from the actuator, not shown, e.g. from a slot guide with stops, pulls it out and rotates it through 180 ° and pushes it back in again, the component 60 comes into the reverse position according to FIG. 25. When the switching device is actuated again and component 60 is moved downward in the direction of arrow 64, the roller passes over the adjoining inclined surface onto projection 66, whereby the body swings out in the direction of arrow 65 and takes contact bridge 5 with it. An NC contact is thus formed.

Die Figuren 26 bis 28 veranschaulichen noch ein praktisches Ausführungsbeispiel eines Bauteils 60 mit zwei seitlichen Führungsrippen 67 und 68, die zum Einschieben in eine Führung des Betätigungsgliedes des Schaltgerätes dienen. Auf der Rückseite kann ein Vorsprung 69 vorgesehen sein, der zum Einrasten in eine Ausnehmung des Betätigungsgliedes kommt und somit ein unbeabsichtigtes Verschieben verhindert.Figures 26 to 28 illustrate a practical embodiment of a component 60 with two lateral guide ribs 67 and 68, which are used for insertion into a guide of the actuator of the switching device. A projection 69 can be provided on the rear side, which comes into a recess in the actuating member and thus prevents unintentional displacement.

Claims (15)

1. Electrical switching device, in particular contactor, with at least one contact system (1-7, 16-20), which comprises two contact bridges (5, 16) held to move in parallel and at a distance apart under spring pressure (14, 25) in a contact bridge holder (8) and stationary contact connecting bars (1, 2) cooperating therewith, an appara- 'tus with a sliding member (21) being provided, which is able to move between two end positions and acts on the contact system so that in one end position the contact system forms a closing contact and in the other end position it forms an opening contact, characterised in that two stationary contact connecting bars (1, 2) are provided, that one contact bridge (5) is provided on one side and the other contact bridge (16) is provided on the other side of the contact connecting bars (1, 2), that the sliding member (21) is constructed as a plate able to slide parallel to the two contact bridges (5, 16), that perpendicular to the plate at least two insulated projections (22, 23) are arranged on the latter, which in the lifting direction of the contact bridge holder (8) are staggered with respect to each other by the thickness of the contact connecting bars (1, 2) plus the thickness of the fixed contact members (3, 4, 19, 20) located thereon on both sides so that in one end position of the sliding member (21) one projection (22) engages in an insulating manner between one contact bridge (5) and one contact connecting bar (1) and in the other end position of the sliding member (21), the other projection (23) engages in an insulating manner between the other contact bridge (16) and the other contact connecting bar (2).
2. Electrical switching device according to Claim 1, characterised in that the projections (22, 23) are constructed in the shape of a wedge in the sliding direction (24) of the sliding member (21).
3. Electrical switching device according to Claim 1 or 2, characterised in that the sliding member (21 ) is longer than the contact bridges (5, 16) and that the projections (22, 23) are arranged close to the ends of the sliding member, so that they come into engagement at the time of each inward sliding movement.
4. Electrical switching device according to one of Claims 1 to 3, characterised in that the sliding member (21) is constructed and located inside the device housing (27) so that it can be actuated from outside and its position is visible.
5. Electrical switching device according to one of Claims 1 to 4, characterised in that the sliding member (21) and/or the projections (22, 23) consist of insulating material and the projections (22, 23) consist of arcing-resistant material.
6. Electrical switching device according to one of Claims 1 to 5, characterised in that in the end position the sliding member (21) is prevented from moving accidentally by locking devices.
7. Electrical switching device according to one of Claims 1 to 6, characterised in that the sliding member (21) is provided with two pairs of projections (22, 23, 29, 30) for alternate engagement between the contact bridges (5, 16) and the contact connecting bars (1, 2) with respect to the two ends of the contact bridges (15,16).
8. Electrical switching device, in particular contactor, with at least one contact system (1-7, 16-20), which comprises two movable contact bridges (5, 16) and two stationary contact connecting bars (1, 2) cooperating therewith, a device being provided which is able to move between two end positions so that the contact bridges (5, 16) with the contact connecting bars (1, 2) form either a closing contact or an opening contact, characterised in that two contact bridges (5, 16) held in parallel and at a distance apart under spring pressure (14, 15) are located in a contact bridge holder (8) on both sides of the contact connecting bars (1, 2) and that provided between the contact bridges (5, 16) as a device is a central member (31) so that in one end position both contact bridges (5,16) are held in the raised position and at the time of actuation one contact bridge (5) forms a closing contact and that in the other end position, the other contact bridge (16) is held in the contact position and forms an opening contact at the time of actuation.
9. Electrical switching device according to Claim 8, characterised in that the central member (31 ) is constructed as a rectangular member and is mounted to tilt about a shaft (32) offset eccentrically.
10. Electrical switching device according to Claim 9, characterised in that the shaft (32) is mounted perpendicular to the common central plane of the contact bridges (5,16) in the contact bridge holder (8) and is accessible from outside at least at one end and that the shaft (32) is connected securely or positively to the rectangular member (31).
11. Electrical switching device, in particular contactor, with at least one contact system (1 to 7), which comprises a movable contact bridge (5) and two stationary contact connecting bars (1, 2) cooperating therewith, in which case an apparatus with a movable part is provided, which is constructed so that the contact bridge (5) with the contact connecting bars (1, 2) forms either a closing contact or an opening contact, characterised in that the apparatus comprises a movably mounted body (35), which acts at one side on the contact bridge (5) and on the other side supports a roller (44), which cooperates with a cam guide (45, 46) able to move for actuating the switching device, which cam guide is designed so that the contact bridge (5) forms either a closing contact or an opening contact.
12. Electrical switching device according to Claim 11, characterised in that the cam guide comprises two guide parts (45, 46) extending one beside the other, that the roller (44) can be reversed on the body (35), so that it bears either against one or other guide part (45, 46) and that the guide parts (45, 46) comprise recesses (48, 50) staggered with respect to each other so that when the roller (44) rolls on one guide part (46), the contact bridge (5) forms a closing contact and when the roller (44) rolls on the other guide part (45), the contact bridge (5) forms an opening contact.
13. Electrical switching device according to Claim 12, characterised in that the body (35) comprises a shaft (36), at one end of which journals (38, 39) are provided on both sides, which are held in a removable manner in a swivel bearing (40), that located at the other end of the shaft (36) is a hammer head (37), on which journals (41, 42) for the selective fitting of the roller (44) are located and which extend at a distance apart on one side and parallel to the journals (38, 39), so that when fitted on one journal (41), or after rotation of the body (35) by 180° and fitting of the roller (44) on the other journal (42), it cooperates with the other guide part (45).
14. Electrical switching device according to one of Claims 11 to 13, characterised in that the body (35) is provided with a handle (43).
15. Electrical switching device according to Claim 11, characterised in that the cam guide is provided on a component (60), which is detachably connected to an actuating member and is able to swing through 180°.
EP82106410A 1982-07-16 1982-07-16 Electric commutation device, in particular a contactor Expired EP0098894B1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
AT82106410T ATE22748T1 (en) 1982-07-16 1982-07-16 ELECTRICAL SWITCHING DEVICE, PARTICULARLY CONTACTOR.
DE8282106410T DE3273685D1 (en) 1982-07-16 1982-07-16 Electric commutation device, in particular a contactor
EP82106410A EP0098894B1 (en) 1982-07-16 1982-07-16 Electric commutation device, in particular a contactor
NO823217A NO160169C (en) 1982-07-16 1982-09-23 ELECTRIC SWITCH, ISAER AUTOMATIC SWITCH.
ES516757A ES516757A0 (en) 1982-07-16 1982-10-22 "ELECTRIC MANEUVER APPARATUS, PARTICULARLY CONTACTOR".
DK549082A DK549082A (en) 1982-07-16 1982-12-10 ELECTRICAL SWITCHES OR CONNECTOR, IS A SECURITY OR PROTECTION
AU15996/83A AU564608B2 (en) 1982-07-16 1983-06-21 Electrical contactor
BR8303776A BR8303776A (en) 1982-07-16 1983-07-14 ELECTRIC KEY, ESPECIALLY RELAY
CA000432427A CA1232631A (en) 1982-07-16 1983-07-14 Circuit-breaker with slide conversion to double acting operation
MX198050A MX153846A (en) 1982-07-16 1983-07-15 IMPROVEMENTS IN ELECTRICAL SWITCHING DEVICE
US06/515,020 US4550232A (en) 1982-07-16 1983-07-18 Circuit breaker
US06/644,778 US4540859A (en) 1982-07-16 1984-08-27 Convertible normally closed/normally open switch with cam actuator
AU75610/87A AU593922B2 (en) 1982-07-16 1987-07-13 Electrical switching device
AU75650/87A AU7565087A (en) 1982-07-16 1987-07-14 Electrical contactor
CA000545226A CA1255726A (en) 1982-07-16 1987-08-24 Circuit-breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82106410A EP0098894B1 (en) 1982-07-16 1982-07-16 Electric commutation device, in particular a contactor

Publications (2)

Publication Number Publication Date
EP0098894A1 EP0098894A1 (en) 1984-01-25
EP0098894B1 true EP0098894B1 (en) 1986-10-08

Family

ID=8189133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106410A Expired EP0098894B1 (en) 1982-07-16 1982-07-16 Electric commutation device, in particular a contactor

Country Status (11)

Country Link
US (2) US4550232A (en)
EP (1) EP0098894B1 (en)
AT (1) ATE22748T1 (en)
AU (3) AU564608B2 (en)
BR (1) BR8303776A (en)
CA (1) CA1232631A (en)
DE (1) DE3273685D1 (en)
DK (1) DK549082A (en)
ES (1) ES516757A0 (en)
MX (1) MX153846A (en)
NO (1) NO160169C (en)

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CN1041672C (en) * 1993-06-07 1999-01-13 大宇电子株式会社 Motor capable of using high or low voltage
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US8809705B2 (en) * 2007-12-04 2014-08-19 General Electric Company Device and method for switching electrical energy
US7498535B2 (en) * 2006-10-30 2009-03-03 Square D Company Circuit breaker operator
US8395464B2 (en) * 2008-05-30 2013-03-12 Itron, Inc. Actuator/wedge improvements to embedded meter switch
US8890711B2 (en) 2009-09-30 2014-11-18 Itron, Inc. Safety utility reconnect
CA2716046C (en) * 2009-09-30 2016-11-08 Itron, Inc. Gas shut-off valve with feedback
BR112012007323A2 (en) * 2009-09-30 2019-09-24 Itron Inc utility remote disconnect from a meter reading system.
EP2416340A1 (en) * 2010-08-02 2012-02-08 Eaton Industries GmbH Switching device with a geometric element for impact of the movement of the movable contact element
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Also Published As

Publication number Publication date
AU593922B2 (en) 1990-02-22
AU7565087A (en) 1987-10-22
CA1232631A (en) 1988-02-09
NO160169B (en) 1988-12-05
NO160169C (en) 1989-03-15
AU1599683A (en) 1984-01-19
BR8303776A (en) 1984-02-21
US4540859A (en) 1985-09-10
DE3273685D1 (en) 1986-11-13
EP0098894A1 (en) 1984-01-25
MX153846A (en) 1987-01-19
NO823217L (en) 1984-01-17
AU564608B2 (en) 1987-08-20
ATE22748T1 (en) 1986-10-15
ES8308146A1 (en) 1983-08-16
ES516757A0 (en) 1983-08-16
AU7561087A (en) 1987-10-22
DK549082A (en) 1984-01-17
US4550232A (en) 1985-10-29

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