EP2489056A1 - Multipole electrical switching device - Google Patents

Multipole electrical switching device

Info

Publication number
EP2489056A1
EP2489056A1 EP10765798A EP10765798A EP2489056A1 EP 2489056 A1 EP2489056 A1 EP 2489056A1 EP 10765798 A EP10765798 A EP 10765798A EP 10765798 A EP10765798 A EP 10765798A EP 2489056 A1 EP2489056 A1 EP 2489056A1
Authority
EP
European Patent Office
Prior art keywords
switching
poles
switching shaft
switching device
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10765798A
Other languages
German (de)
French (fr)
Other versions
EP2489056B1 (en
Inventor
Jörg-Uwe DAHL
Ludvik Godesa
Andreas Hierl
Siegfried Pirker
Thomas Pniok
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
Priority claimed from DE102009050296A external-priority patent/DE102009050296A1/en
Priority claimed from DE201010014428 external-priority patent/DE102010014428A1/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2489056A1 publication Critical patent/EP2489056A1/en
Application granted granted Critical
Publication of EP2489056B1 publication Critical patent/EP2489056B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0094—Details of rotatable shafts which are subdivided; details of the coupling means thereof

Definitions

  • the invention relates to a multi-pole electrical Wegge ⁇ advises with at least two switching poles, with a Antriebsmecha ⁇ mechanism and with a under the action of Antriebsmecha ⁇ mechanism about a rotary axis formed by rotary axis rotatable switching shaft, wherein each of the switching poles each have a current rail and a switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system each of the switching poles each having a formed of insulating material, one-piece switching shaft segment which carries a contact lever assembly and in which the switching shaft segments adjacent the switching poles for Bil ⁇ tion of the switching shaft respectively are connected.
  • Embodiments genus tung according multipole switching devices are known from patent specifications EP ⁇ 0542636 Bl, EP 1454331 Bl and DE 199 10 032 Cl known.
  • the switching shaft segments of adjacent of the switching poles to Bil ⁇ extension of the actuating shaft are connected by at least two Verbin ⁇ dung strands pa ⁇ rallel each extending in a distance from the axis of rotation.
  • the two connection strands ge are formed from corresponding connection elements in the form of separate connecting rods and corresponding openings of the switching shaft segments.
  • this object is achieved in that all connecting elements of the at least two connecting strands are formed by first sections of the contact lever arrangements carrying integral one-piece switching shaft segments.
  • the corresponding connecting elements form pairs of the male female type.
  • the play between the drive mechanism and selector shaft can be kept small when support bearing for the drive mechanism to the selector shaft coupling Kopplungsele ⁇ elements are formed of second portions of the integral switching shaft segments, wherein the second portions may be formed as La ⁇ rule extending transversely to the axis of rotation Extend selector shaft.
  • pairs of corresponding bearing means can form the pivot bearing. It is technically simple if first of the bearing means of third sections of the integral switching shaft segments and the first bearing means associated second of the bearing means of sections of the half-shells are formed.
  • the half-shells for the passage of the connection elements along the trajectory of the connecting elements extending, formed in the manner of a curved elongated ⁇ hole openings can be accommodated in a surrounding housing.
  • FIG. 1 to 9. Showing:
  • Figure 1 is a schematic representation of the multi-pole electrical switching device according to the invention in section through a its switching poles with a drive mechanism and with a rotatable under the action of the drive mechanism
  • FIGS. 3 and 4 show two views of one of the switching poles shown in FIG. 2,
  • FIG. 5 shows one of the switching shaft segments with a contact lever arrangement held therein
  • FIG. 1 shows two views of the switching shaft respectively before and after connecting their switching shaft segments.
  • this switching device has switching elements in the form of switching contacts 2, 3 and 4, 5 for the double interruption of a first current path 6 of a first switching pole 7.
  • the current path 6 is part of a first main current path of a Energyverteilernet ⁇ zes, in particular a low-voltage network.
  • the Heidelbergkon ⁇ clocks 2, 3 is associated with a first and the switching contacts 4, 5, a second arc extinguishing member, wherein the Lichtbo ⁇ genlöschglieder are formed as arc splitter stacks 8, 9.
  • the electrical switching device 1 has a through a first
  • the electrical switching device has a shut-off mechanism 13 in the form of a switching mechanism.
  • the switching mechanism is arranged as a mechanical intermediate member between the switching and drive members in the course of the drive mechanism 12.
  • triggering members are provided, which cause a triggering of the shut-off mechanism 13 - ie a release of a latching of the switching mechanism - to the drive mechanism 12 for opening the switching contacts 2, 3; 4, 5 in motion.
  • a thermal release 14 (as an overload detection member), an electromagnetic release 15 (as a short-circuit detection member) and a manual release 16 protruding from a front insulation cover are provided as triggering members, by means of which the switching mechanism for opening the switching contacts is released can.
  • a pressure release (as a short-circuit detection element) or an electronic release (as an overload and / or short-circuit detection element).
  • the electrical switching device 1 has paral ⁇ lel to the first switch room shown in Figure 1 11 further switching rooms. The other switching rooms are each limited by further separate switching pole housing. In the white ⁇ direct switchrooms switching contacts further switching poles are arranged.
  • the ends of the current path 6 of each of the switching poles 7 are each electrically connected to at least ei ⁇ ner electrical line 18 of the respective main flow path of the power distribution network.
  • the separate switching pole housings 10 are arranged between a first part 21 designed as a bottom and a second part 22 of a surrounding housing 20 designed as an intermediate cover.
  • a Iso ⁇ lierabdeckung forming third portion 23 of the surrounding housing is used in a conventional manner for covering here not further ones shown, Asked accessories, which is arranged in receiving pockets of the intermediate cover.
  • the multi-pole electrical switching device 1 is designed as a three-pole low-voltage circuit.
  • Each of the three switching pole 10 consists of two half-shells 26, 27 and forms an insulating envelope one of the control rooms 11 (see FIG. 1) in which each egg ⁇ ner of the three switch poles is arranged. It shows also a control shaft 28 which is rotatable about a rotation axis 29 under the action of the drive mechanism shown in Figure 1 12 , and the first part 21 of the outer housing 20, in which the separate switching pole housing 10 are accommodated.
  • the current path 6 of each of the switching poles 7 is opened and closed by a switching contact system, which here consists of a fixed contact arrangement and a movable contact arrangement.
  • the movable Maisan ⁇ order of the switching poles 7 each has a formed of insulating material, one-piece switching shaft segment 280 which carries ei ⁇ ne as a whole designated 30 contact lever assembly.
  • a double-lever shaped contact lever 31 is rotatably mounted in the switching shaft segment 280 and extends transversely to the axis of rotation 29 of the switching shaft segment 280 (the switching shaft 28). The two ends of the contact lever 31 project out of the switching shaft segment 280.
  • the switching shaft segments 280 adjacent the switching poles 7 are to form the switching shaft 28 each by means of two
  • Connecting strands 34, 35 are connected, each extending in egg ⁇ nem distance A parallel to the axis of rotation 29 and from corresponding connection elements 36, 37, 38, 39 are formed.
  • connection elements 36, 37, 38, 39 of the two connection ⁇ strands 34, 35 are formed by first portions of the contact lever assemblies 30 bearing integral Heidelbergwellensegmente 280.
  • first 36 and second 38 of the terminal members form first male-female type pairs and third 37 and fourth 39 of the terminal members form male-female type second pairs.
  • the switching shaft segments 280 are all the same made of ⁇ , since a first outer side of the switching shaft segments 280 each with one of the first 36 and one of the second 37th Connection elements and the opposite outer side is provided in each case with one of the third 38 and one of the fourth 39 connection elements.
  • the first 36 and second 37 connection elements are longer in the direction of the rotation axis 29 than the third 38 and fourth 39 connection elements.
  • coupling elements 41 coupling coupling elements 40 for the drive mechanism to the drive shaft 28 are formed by second sections of the one-piece shift shaft segments 280. These support bearings 40 are shaped as tabs which extend transversely to the axis of rotation 29 of the switching shaft 28. The tabs point
  • first 43 of the bearing means are formed by third sections of the integral switching shaft segments and second sections 44 of the bearing elements are formed by sections of the half shells 26, 27.
  • the half-shells 26, 27 have openings (of which only two 47, 48 can be seen in the figures), which extend along the path of movement of the connecting elements 36, 37, 38, 39 and are formed in the manner of a curved elongated hole.
  • two 36, 37 of the longer connecting elements pass through openings 49, 50 of the surrounding housing 20 (cf., FIG. 2), whereby these openings 49, 50 also pass along the trajectory of the connection.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The invention relates to a multipole electrical switching device (1) with at least two switching poles (7), with a drive mechanism (12) and with a switching shaft (28), which is capable of rotating under the effect of the drive mechanism (12) about an axis of rotation (29) formed by pivot bearings, in which each of the switching poles (7) has in each case one current path (6) and one switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system of each of the switching poles (7) has in each case an integral switching shaft segment (280), which is formed from insulating material, which bears a contact lever arrangement (30) and in which the switching shaft segments (280) of adjacent switching poles (7) are connected in each case by means of at least two connecting branches (34, 35) so as to form the switching shaft (28), said connecting branches extending in each case at a distance (A) parallel to the axis of rotation (29) and being formed from corresponding connecting elements (36, 38; 37, 39). In order to ensure connection of the switching shaft segments (280) with as precise a fit as possible, in which the modularity of the individual switching poles (7) is retained and complicated assembly operations are avoided, provision is made for all of the connection elements (36, 37, 38, 39) of the at least two connecting branches (34, 35) to be formed by first sections of the integral switching shaft segments (280), which bear the contact lever arrangements (30).

Description

Beschreibung description
Mehrpoliges elektrisches Schaltgerät Die Erfindung betrifft ein mehrpoliges elektrisches Schaltge¬ rät mit zumindest zwei Schaltpolen, mit einem Antriebsmecha¬ nismus und mit einer unter der Einwirkung des Antriebsmecha¬ nismus um eine von Drehlagern gebildete Drehachse drehbaren Schaltwelle, bei dem jeder der Schaltpole jeweils eine Strom- bahn und ein Schaltkontaktsystem zum Öffnen und Schließen der Strombahn aufweist, wobei eine bewegliche Kontaktanordnung des Schaltkontaktsystems jedes der Schaltpole jeweils ein aus Isolierstoff gebildetes, einstückiges Schaltwellensegment aufweist, das eine Kontakthebelanordnung trägt und bei dem die Schaltwellensegmente benachbarter der Schaltpole zur Bil¬ dung der Schaltwelle jeweils verbunden sind. - Diese Schalt¬ geräte dienen zum Unterbrechen der einzelnen Phasen eines mehrphasigen Hauptstromkreises, wobei die Teile des Schaltge¬ rätes, die einer Phase des Hauptstromkreises zugeordnet sind, jeweils einen der Schaltpole des mehrpoligen Schaltgerätes bilden. Die drehfeste Verbindung der einstückigen Schaltwellensegmente zur Schaltwelle ist dabei notwendig, um die The invention relates to a multi-pole electrical Schaltge ¬ advises with at least two switching poles, with a Antriebsmecha ¬ mechanism and with a under the action of Antriebsmecha ¬ mechanism about a rotary axis formed by rotary axis rotatable switching shaft, wherein each of the switching poles each have a current rail and a switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system each of the switching poles each having a formed of insulating material, one-piece switching shaft segment which carries a contact lever assembly and in which the switching shaft segments adjacent the switching poles for Bil ¬ tion of the switching shaft respectively are connected. - These switching ¬ devices are used to interrupt the individual phases of a multi-phase main circuit, the parts of the Schaltge ¬ device, which are assigned to a phase of the main circuit, each one of the switching poles of the multi-pole switching device. The non-rotatable connection of the integral switching shaft segments to the shift shaft is necessary to the
Schaltkontaktsysteme aller Pole mittels des Antriebsmechanis¬ mus gemeinsam betätigen zu können. Ausführungsformen gat- tungsgemäßer mehrpoliger Schaltgeräte sind aus den Patent¬ schriften EP 0 542 636 Bl, EP 1 454 331 Bl und DE 199 10 032 Cl bekannt. Switching contact systems of all poles by means of Antriebsmechanis ¬ mechanism to operate together. Embodiments genus tung according multipole switching devices are known from patent specifications EP ¬ 0542636 Bl, EP 1454331 Bl and DE 199 10 032 Cl known.
Bei dem aus der EP 0 542 636 Bl bekannten Schaltgerät sind die Schaltwellensegmente benachbarter der Schaltpole zur Bil¬ dung der Schaltwelle jeweils mittels zumindest zweier Verbin¬ dungsstränge verbunden, die sich jeweils in einem Abstand pa¬ rallel zur Drehachse erstrecken. Die beiden Verbindungssträn- ge sind dabei aus korrespondierenden Anschlusselementen in Form separater Verbindungsstangen und korrespondierender Öffnungen der Schaltwellensegmente gebildet. Ausgehend von einem mehrpoligen elektrischen Schaltgerät mit den Merkmalen des Oberbegriffes des Patentanspruches 1 (EP 0 542 636 Bl) ist es Aufgabe der Erfindung, ein möglichst pass¬ genaues Verbinden der Schaltwellensegmente sicher zu stellen, bei dem die Modularität der einzelnen Schaltpole erhalten bleibt, und komplizierte Zusammenfügungsoperationen vermieden werden . In the 0,542,636 Bl known from EP switching device, the switching shaft segments of adjacent of the switching poles to Bil ¬ extension of the actuating shaft are connected by at least two Verbin ¬ dung strands pa ¬ rallel each extending in a distance from the axis of rotation. The two connection strands ge are formed from corresponding connection elements in the form of separate connecting rods and corresponding openings of the switching shaft segments. Starting from a multi-pole electrical switching device with the features of the preamble of claim 1 (EP 0 542 636 Bl), it is an object of the invention to ensure the most accurate ¬ accurate connection of the switching shaft segments, in which the modularity of the individual switching poles is maintained, and complicated assembly operations are avoided.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass alle Anschlusselemente der zumindest zwei Verbindungsstränge von ersten Abschnitten der die Kontakthebelanordnungen tragenden einstückigen Schaltwellensegmente gebildet sind. According to the invention, this object is achieved in that all connecting elements of the at least two connecting strands are formed by first sections of the contact lever arrangements carrying integral one-piece switching shaft segments.
Bei dem erfindungsgemäßen mehrpoligen elektrischen Schalter sind also keine separaten, körperlich eigenständigen An- Schlusselemente zum Verbinden der Schaltwellensegmente erfor¬ derlich, so dass die Anzahl der toleranzbehafteten Teile der Schaltwelle auf die Anzahl der die Kontakthebelanordnungen tragenden Schaltwellensegmente begrenzt ist und somit auch das sich auf die Schaltleistung des Schaltgerätes negativ auswirkende Spiel der Schaltwellensegmente auf ein Minimum reduziert ist. In the inventive multipolar electrical switch so no separate, physically independent arrival circuit elements for connecting the switching shaft segments are erfor ¬ sary, so that the number of tolerance-affected parts of the control shaft is limited to the number of the contact lever assemblies carrying switching shaft segments and thus also to the Switching power of the switching device negative impacting game of the switching shaft segments is reduced to a minimum.
Auch das Zusammenfügen der separaten Schaltwellensegmente ist durch den Wegfall separater Anschlusselemente in vorteilhaf- ter, montagetechnisch leicht zu handhabender Weise möglich. Also, the joining of the separate switching shaft segments is possible by eliminating the need for separate connection elements in an advantageous, easy-to-handle manner.
In bevorzugter Ausgestaltung ist bei dem erfindungsgemäßen mehrpoligen elektrischen Schaltgerät vorgesehen, dass die korrespondierenden Anschlusselemente Paare vom männlichweiblich Typ bilden. In a preferred embodiment, it is provided in the multi-pole electrical switching device according to the invention that the corresponding connecting elements form pairs of the male female type.
Das Spiel zwischen Antriebsmechanismus und Schaltwelle kann gering gehalten werden, wenn von zweiten Abschnitten der einstückigen Schaltwellensegmente Stützlager für den Antriebsmechanismus an die Schaltwelle koppelnde Kopplungsele¬ mente ausgebildet sind, wobei die zweiten Abschnitte als La¬ schen geformt sein können, die sich quer zur Drehachse der Schaltwelle erstrecken. The play between the drive mechanism and selector shaft can be kept small when support bearing for the drive mechanism to the selector shaft coupling Kopplungsele ¬ elements are formed of second portions of the integral switching shaft segments, wherein the second portions may be formed as La ¬ rule extending transversely to the axis of rotation Extend selector shaft.
Bei mehrpoliges elektrisches Schaltgeräten, bei denen separa¬ te Schaltpolgehäuse jeweils aus zwei Halbschalen zusammenge¬ setzt sind und jeweils eine isolierende Umhüllung eines In multi-pole electrical switching devices, in which separa ¬ te switching pole housings are zusammenge ¬ sets of two half shells together and in each case an insulating sheath of a
Schaltraumes zur Aufnahme jeweils eines einzelnen der Schalt¬ pole bilden, können Paare korrespondierender Lagermittel die Drehlager bilden. Dabei ist es technisch einfach, wenn erste der Lagermittel von dritten Abschnitten der einstückigen Schaltwellensegmente und den ersten Lagermitteln zugeordnete zweite der Lagermittel von Abschnitten der Halbschalen geformt sind. Switching space for receiving each one of the switching ¬ pole form, pairs of corresponding bearing means can form the pivot bearing. It is technically simple if first of the bearing means of third sections of the integral switching shaft segments and the first bearing means associated second of the bearing means of sections of the half-shells are formed.
Bevorzugt ist vorgesehen, dass die Halbschalen zum Durchgriff der Anschlusselemente sich entlang der Bewegungsbahn der An- Schlusselemente erstreckende, nach Art eines gebogenen Lang¬ loches ausgebildete Durchbrüche aufweisen. Die separaten Schaltpolgehäuse können in einem Umgehäuse aufgenommen sein. It is preferably provided that the half-shells for the passage of the connection elements along the trajectory of the connecting elements extending, formed in the manner of a curved elongated ¬ hole openings. The separate switching pole housing can be accommodated in a surrounding housing.
Ein erfindungsgemäßes mehrpoliges elektrisches Schaltgerät ist in den Figuren 1 bis 9 dargestellt. Dabei zeigen: An inventive multi-pole electrical switching device is shown in Figures 1 to 9. Showing:
Figur 1 eine schematische Darstellung des erfindungsgemäßen mehrpoligen elektrischen Schaltgerätes im Schnitt durch einen seiner Schaltpole mit einem Antriebsmechanismus und mit einer unter der Einwirkung des Antriebsmechanismus drehbaren Figure 1 is a schematic representation of the multi-pole electrical switching device according to the invention in section through a its switching poles with a drive mechanism and with a rotatable under the action of the drive mechanism
Schaltwelle, Figur 2 das erfindungsgemäße Schaltgerät mit drei in einem Umgehäuse angeordneten Schaltpolen und drei in separaten Schaltpolgehäusen drehbar gelagerten Schaltwellensegmenten, die - miteinander verbunden - die in Figur 1 gezeigte Schaltwelle bilden, 2, the switching device according to the invention with three arranged in a surrounding housing switching poles and three in separate Schaltpolgehäusen rotatably mounted switching shaft segments, which - connected to each other - form the switching shaft shown in Figure 1,
Figuren 3 und 4 zwei Ansichten eines der in Figur 2 gezeigten Schaltpole, FIGS. 3 and 4 show two views of one of the switching poles shown in FIG. 2,
Figur 5 eines der Schaltwellensegmente mit einer darin gehal- tenen Kontakthebelanordnung und FIG. 5 shows one of the switching shaft segments with a contact lever arrangement held therein and FIG
Figuren 6 bis 9 zwei Ansichten der Schaltwelle jeweils vor und nach dem Verbinden ihrer Schaltwellensegmente. Gemäß dem in der Figur 1 gezeigten Grundschema des erfindungsgemäßen mehrpoligen elektrischen Schaltgerätes 1, weist dieses Schaltgerät Schaltglieder in Form von Schaltkontakten 2, 3 und 4, 5 zur doppelten Unterbrechung einer ersten Strombahn 6 eines ersten Schaltpoles 7 auf. Die Strombahn 6 ist Teil einer ersten Hauptstrombahn eines Energieverteilernet¬ zes, insbesondere eines Niederspannungsnetzes. Den Schaltkon¬ takten 2, 3 ist ein erstes und den Schaltkontakten 4, 5 ein zweites Lichtbogenlöschglied zugeordnet, wobei die Lichtbo¬ genlöschglieder als Löschblechpakete 8, 9 ausgebildet sind. Das elektrische Schaltgerät 1 weist einen durch ein erstesFigures 6 to 9 show two views of the switching shaft respectively before and after connecting their switching shaft segments. According to the basic diagram of the multi-pole electrical switching device 1 according to the invention shown in FIG. 1, this switching device has switching elements in the form of switching contacts 2, 3 and 4, 5 for the double interruption of a first current path 6 of a first switching pole 7. The current path 6 is part of a first main current path of a Energieverteilernet ¬ zes, in particular a low-voltage network. The Schaltkon ¬ clocks 2, 3 is associated with a first and the switching contacts 4, 5, a second arc extinguishing member, wherein the Lichtbo ¬ genlöschglieder are formed as arc splitter stacks 8, 9. The electrical switching device 1 has a through a first
Schaltpolgehäuse 10 begrenzten ersten Schaltraum 11 zur Aufnahme der Schaltkontakte 2, 3; 4, 5 des ersten Schaltpoles 7 auf. Antriebsglieder, die einen Antriebsmechanismus 12 des elektrischen Schaltgerätes bilden, dienen zum Öffnen und Schließen der Schaltkontakte 2, 3; 4, 5. Weiterhin weist das elektrische Schaltgerät einen Abschaltmechanismus 13 in Form eines Schaltschlosses auf. Das Schaltschloss ist als mechani- sches Zwischenglied zwischen den Schalt- und Antriebsgliedern im Zuge des Antriebsmechanismus 12 angeordneten. In dem elektrischen Schaltgerät 1 sind Auslöseglieder vorgesehen, die ein Auslösen des Abschaltmechanismus 13 - also ein Lösen einer Verklinkung des Schaltschlosses - bewirken, um den An- triebsmechanismus 12 zum Öffnen der Schaltkontakte 2, 3; 4, 5 in Gang zu setzen. Als Auslöseglieder sind insbesondere ein thermischer Auslöser 14 (als Überlast-Erfassungsglied) , ein elektromagnetischer Auslöser 15 (als Kurzschluss- Erfassungsglied) und ein frontseitig aus einer vorderen Iso- lierabdeckung ragender manueller Auslöser 16 vorgesehen, mittels derer das Schaltschloss zum Öffnen der Schaltkontakte gelöst werden kann. Es können aber auch ein Druckauslöser (als Kurzschluss-Erfassungsglied) oder ein elektronischer Auslöser (als Überlast- und/oder Kurzschluss-Erfassungsglied) vorgesehen werden. Das elektrische Schaltgerät 1 weist paral¬ lel zu dem in der Figur 1 gezeigten ersten Schaltraum 11 weitere Schalträume auf. Die weiteren Schalträume sind jeweils durch weitere separate Schaltpolgehäuse begrenzt. In den wei¬ teren Schalträumen sind Schaltkontakte weiterer Schaltpole angeordnet. Mittels Leitungsanschlüssen 17 sind die Enden der Strombahn 6 jedes der Schaltpole 7 jeweils mit zumindest ei¬ ner elektrischen Leitung 18 der jeweiligen Hauptstrombahn des Energieverteilernetzes elektrisch verbunden. Die separaten Schaltpolgehäuse 10 sind zwischen einem als Boden ausgebilde- ten ersten Teil 21 und einem als Zwischendeckel ausgebildeten zweiten Teil 22 eines Umgehäuses 20 angeordnet. Ein die Iso¬ lierabdeckung bildendes drittes Teil 23 des Umgehäuses dient in üblicher Weise zum Abdecken von hier nicht weiter darge- stelltem Zubehör, der in Aufnahmetaschen des Zwischendeckels angeordnet ist. Schaltpolgehäuse 10 limited first switching space 11 for receiving the switching contacts 2, 3; 4, 5 of the first switching pole 7. Drive links, a drive mechanism 12 of the form electrical switching device, are used to open and close the switch contacts 2, 3; 4, 5. Furthermore, the electrical switching device has a shut-off mechanism 13 in the form of a switching mechanism. The switching mechanism is arranged as a mechanical intermediate member between the switching and drive members in the course of the drive mechanism 12. In the electrical switching device 1 triggering members are provided, which cause a triggering of the shut-off mechanism 13 - ie a release of a latching of the switching mechanism - to the drive mechanism 12 for opening the switching contacts 2, 3; 4, 5 in motion. In particular, a thermal release 14 (as an overload detection member), an electromagnetic release 15 (as a short-circuit detection member) and a manual release 16 protruding from a front insulation cover are provided as triggering members, by means of which the switching mechanism for opening the switching contacts is released can. However, it is also possible to provide a pressure release (as a short-circuit detection element) or an electronic release (as an overload and / or short-circuit detection element). The electrical switching device 1 has paral ¬ lel to the first switch room shown in Figure 1 11 further switching rooms. The other switching rooms are each limited by further separate switching pole housing. In the white ¬ direct switchrooms switching contacts further switching poles are arranged. By means of line terminals 17, the ends of the current path 6 of each of the switching poles 7 are each electrically connected to at least ei ¬ ner electrical line 18 of the respective main flow path of the power distribution network. The separate switching pole housings 10 are arranged between a first part 21 designed as a bottom and a second part 22 of a surrounding housing 20 designed as an intermediate cover. A Iso ¬ lierabdeckung forming third portion 23 of the surrounding housing is used in a conventional manner for covering here not further ones shown, Asked accessories, which is arranged in receiving pockets of the intermediate cover.
Gemäß der Figur 2 ist das erfindungsgemäße mehrpolige elekt- rische Schaltgerät 1 als ein dreipoliger Niederspannungs-According to FIG. 2, the multi-pole electrical switching device 1 according to the invention is designed as a three-pole low-voltage circuit.
Leistungsschalter in Form eines Kompaktschalters in „Kasset¬ tenbauweise" ausgebildet. Er weist also drei Schaltpole auf, die jeweils in einem der separaten Schaltpolgehäuse 10 aufge¬ nommen sind. Jedes der drei Schaltpolgehäuse 10 besteht aus zwei Halbschalen 26, 27 und bildet eine isolierende Umhüllung eines der Schalträume 11 (vgl. Figur 1), in denen jeweils ei¬ ner der drei Schaltpole angeordnet ist. Zu sehen ist hier auch eine Schaltwelle 28, die unter der Einwirkung des in der Figur 1 gezeigten Antriebsmechanismus 12 um eine Drehachse 29 drehbar ist, und das ersten Teil 21 des Umgehäuses 20, in dem die separaten Schaltpolgehäuse 10 aufgenommen sind. Circuit breaker in the form of a compact switch in "CASSETTE ¬ tenbauweise." It therefore has three switch poles on which are placed ¬ taken in each case in one of the separate switching pole 10. Each of the three switching pole 10 consists of two half-shells 26, 27 and forms an insulating envelope one of the control rooms 11 (see FIG. 1) in which each egg ¬ ner of the three switch poles is arranged. It shows also a control shaft 28 which is rotatable about a rotation axis 29 under the action of the drive mechanism shown in Figure 1 12 , and the first part 21 of the outer housing 20, in which the separate switching pole housing 10 are accommodated.
Gemäß der Figur 4 dient zum Öffnen und Schließen der Strombahn 6 jedes der Schaltpole 7 ein Schaltkontaktsystem, das hier aus einer feststehenden Kontaktanordnung und einer bewegliche Kontaktanordnung besteht. Die bewegliche Kontaktan¬ ordnung der Schaltpole 7 weist jeweils ein aus Isolierstoff gebildetes, einstückiges Schaltwellensegment 280 auf, das ei¬ ne als Ganzes mit 30 bezeichnete Kontakthebelanordnung trägt. Dabei ist ein als Doppelhebel geformter Kontakthebel 31 in dem Schaltwellensegment 280 drehgelagert und erstreckt sich quer zur Drehachse 29 des Schaltwellensegmentes 280 (der Schaltwelle 28) . Die beiden Enden des Kontakthebels 31 ragen aus dem Schaltwellensegment 280 heraus. An ihren Enden tragen sie auf einer Seite der Außenkontur jeweils ein Kontaktstück, welche einander abgewandt sind und die Schaltkontakte 2 und 4 des Schaltgerätes (des Leistungsschalters) bilden. Der Kon¬ takthebel 31 in den Figuren 4 und 5 ist in seiner EIN- Stellung gezeigt, in der seine beiden Kontaktstücke an gege¬ nüberliegenden feststehenden Kontaktstücken der feststehenden Kontaktanordnung anliegen, die die feststehenden Schaltkontakte 3 und 5 bilden. Auf den den Kontaktstücken gegenüber liegenden Seiten der Außenkontur des Kontakthebels 31 ist jeweils eine Vertiefung 32 vorhanden, in die jeweils ein parallel zur Drehachse 29 des Schaltwellensegmentes 280 verlaufen¬ der Bolzen 33 eingelegt ist. Am Bolzen greifen an beiden Enden Federn an, die den Kontakthebel 31 mit einem Drehmoment in Schließrichtung (also in Richtung seiner EIN-Stellung) beaufschlagen. Das andere Ende der Federn ist über weitere Bol¬ zen am Schaltwellensegment 280 befestigt. According to FIG. 4, the current path 6 of each of the switching poles 7 is opened and closed by a switching contact system, which here consists of a fixed contact arrangement and a movable contact arrangement. The movable Kontaktan ¬ order of the switching poles 7 each has a formed of insulating material, one-piece switching shaft segment 280 which carries ei ¬ ne as a whole designated 30 contact lever assembly. In this case, a double-lever shaped contact lever 31 is rotatably mounted in the switching shaft segment 280 and extends transversely to the axis of rotation 29 of the switching shaft segment 280 (the switching shaft 28). The two ends of the contact lever 31 project out of the switching shaft segment 280. At their ends they carry on each side of the outer contour of a contact piece, which are facing away from each other and form the switching contacts 2 and 4 of the switching device (the circuit breaker). The con tact ¬ lever 31 in Figures 4 and 5 is in its ON Position shown, in which abut his two contact pieces on gege ¬ overlying fixed contact pieces of the fixed contact arrangement, which form the fixed switching contacts 3 and 5. On the contact pieces opposite sides of the outer contour of the contact lever 31 each have a recess 32 is provided, in each of which a parallel to the axis of rotation 29 of the switching shaft segment 280 extend ¬ the bolt 33 is inserted. On the bolt engage springs at both ends, which act on the contact lever 31 with a torque in the closing direction (ie in the direction of its ON position). The other end of the springs is fixed on further Bol ¬ zen on switching shaft segment 280th
Die Schaltwellensegmente 280 benachbarter der Schaltpole 7 sind zur Bildung der Schaltwelle 28 jeweils mittels zweierThe switching shaft segments 280 adjacent the switching poles 7 are to form the switching shaft 28 each by means of two
Verbindungsstränge 34, 35 verbunden, die sich jeweils in ei¬ nem Abstand A parallel zu der Drehachse 29 erstrecken und aus korrespondierenden Anschlusselementen 36, 37, 38, 39 gebildet sind . Connecting strands 34, 35 are connected, each extending in egg ¬ nem distance A parallel to the axis of rotation 29 and from corresponding connection elements 36, 37, 38, 39 are formed.
Alle Anschlusselemente 36, 37, 38, 39 der zwei Verbindungs¬ stränge 34, 35 sind von ersten Abschnitten der die Kontakthebelanordnungen 30 tragenden einstückigen Schaltwellensegmente 280 geformt. All connection elements 36, 37, 38, 39 of the two connection ¬ strands 34, 35 are formed by first portions of the contact lever assemblies 30 bearing integral Schaltwellensegmente 280.
Gemäß den Figuren 6 bis 9 bilden korrespondierende 36, 38; 37, 39 der Anschlusselemente Paare vom männlich-weiblich Typ. So bilden erste 36 und zweite 38 der Anschlusselemente erste Paare vom männlich-weiblich Typ und dritte 37 und vierte 39 der Anschlusselemente zweite Paare vom männlich-weiblich Typ. Dabei sind die Schaltwellensegmente 280 alle drei gleich aus¬ gebildet, da eine erste Außenseite der Schaltwellensegmente 280 jeweils mit einem der ersten 36 und einem der zweiten 37 Anschlusselemente und die ihr gegenüber liegende Außenseite jeweils mit einem der dritten 38 und einem der vierten 39 Anschlusselemente versehen ist. Die ersten 36 und zweiten 37 Anschlusselemente sind in Richtung der Drehachse 29 länger als die dritten 38 und vierten 39 Anschlusselemente. According to FIGS. 6 to 9, corresponding 36, 38; 37, 39 of the connecting elements pairs of male-female type. Thus, first 36 and second 38 of the terminal members form first male-female type pairs and third 37 and fourth 39 of the terminal members form male-female type second pairs. In this case, the switching shaft segments 280 are all the same made of ¬ , since a first outer side of the switching shaft segments 280 each with one of the first 36 and one of the second 37th Connection elements and the opposite outer side is provided in each case with one of the third 38 and one of the fourth 39 connection elements. The first 36 and second 37 connection elements are longer in the direction of the rotation axis 29 than the third 38 and fourth 39 connection elements.
In den Figuren 6 und 7 ist außerdem gezeigt, dass von zweiten Abschnitten der einstückigen Schaltwellensegmente 280 Stützlager 40 für den Antriebsmechanismus an die Schaltwelle 28 koppelnde Kopplungselemente 41 ausgebildet sind. Diese Stütz¬ lager 40 sind als Laschen geformt, die sich quer zur Drehachse 29 der Schaltwelle 28 erstrecken. Die Laschen weisen It is also shown in FIGS. 6 and 7 that coupling elements 41 coupling coupling elements 40 for the drive mechanism to the drive shaft 28 are formed by second sections of the one-piece shift shaft segments 280. These support bearings 40 are shaped as tabs which extend transversely to the axis of rotation 29 of the switching shaft 28. The tabs point
Durchgangsbohrungen 42 auf, die von den Enden der als Koppelbolzen ausgebildeten Kopplungselemente 41 durchgriffen sind. Der Koppelbolzen durchgreift weiterhin parallele Antriebshe¬ bel 120, die ein mit der Schaltwelle 28 gekoppeltes Endglied des Antriebsmechanismus 12 bilden. Through holes 42 which are penetrated by the ends of the coupling pin 41 formed as coupling elements. The coupling bolt continues to pass through parallel Antriebhe ¬ bel 120, which form a coupled to the switching shaft 28 the end member of the drive mechanism 12.
Als ein die Drehachse 29 bildendes Drehlager dienen Paare korrespondierender Lagermittel 43, 44. Gemäß der Figur 3 sind dabei erste 43 der Lagermittel von dritten Abschnitten der einstückigen Schaltwellensegmente und zweite 44 der Lagermit¬ tel von Abschnitten der Halbschalen 26, 27 geformt. Zum Durchgriff der Anschlusselemente 36, 37, 38, 39 weisen die Halbschalen 26, 27 Durchbrüche auf ( von denen in den Figuren nur zwei 47, 48 zu sehen sind), die sich entlang der Bewegungsbahn der Anschlusselemente 36, 37, 38, 39 erstrecken und nach Art eines gebogenen Langloches ausgebildete sind. Zur Ankopplung eines externen Antriebes durchgreifen zwei 36, 37 der länger ausgebildeten Anschlusselemente Durchbrüche 49, 50 des Umgehäuses 20 (vgl. Figur 2), wobei sich auch diese Durchbrüche 49, 50 entlang der Bewegungsbahn der Anschluss- elemente 36, 38 erstrecken und nach Art eines gebogenen Lang loches ausgebildete sind. According to FIG. 3, first 43 of the bearing means are formed by third sections of the integral switching shaft segments and second sections 44 of the bearing elements are formed by sections of the half shells 26, 27. For the passage of the connecting elements 36, 37, 38, 39, the half-shells 26, 27 have openings (of which only two 47, 48 can be seen in the figures), which extend along the path of movement of the connecting elements 36, 37, 38, 39 and are formed in the manner of a curved elongated hole. For coupling an external drive, two 36, 37 of the longer connecting elements pass through openings 49, 50 of the surrounding housing 20 (cf., FIG. 2), whereby these openings 49, 50 also pass along the trajectory of the connection. extend elements 36, 38 and are formed in the manner of a curved long hole.

Claims

Patentansprüche claims
Mehrpoliges elektrisches Schaltgerät (1) mit zumindest zwei Schaltpolen (7), mit einem Antriebsmechanismus (12) und mit einer unter der Einwirkung des Antriebsmechanismus (12) um eine von Drehlagern gebildete Drehachse (29) dreh¬ baren Schaltwelle (28), Multi-pole electrical switching device (1) with at least two switching poles (7), with a drive mechanism (12) and with a switching shaft (28) rotatable about an axis of rotation (29) formed by rotary bearings under the action of the drive mechanism (12),
- bei dem jeder der Schaltpole (7) jeweils eine Strombahn (6) und ein Schaltkontaktsystem zum Öffnen und Schließen der Strombahn aufweist, wobei eine bewegliche Kontaktan¬ ordnung des Schaltkontaktsystems jedes der Schaltpole (7) jeweils ein aus Isolierstoff gebildetes, einstückiges Schaltwellensegment (280) aufweist, das eine Kontakt¬ hebelanordnung (30) trägt und - In which each of the switching poles (7) each have a current path (6) and a switching contact system for opening and closing the current path, wherein a movable Kontaktan ¬ order of the switching contact system of each of the switching poles (7) each formed of insulating material, one-piece switching shaft segment (280 ), which carries a contact ¬ lever arrangement (30) and
- bei dem die Schaltwellensegmente (280) benachbarter der Schaltpole (7) zur Bildung der Schaltwelle (28) jeweils mittels zumindest zweier Verbindungsstränge (34, 35) ver¬ bunden sind, die sich jeweils in einem Abstand (A) paral¬ lel zur Drehachse (29) erstrecken und aus korrespondierenden Anschlusselementen (36, 38; 37, 39) gebildet sind, d a d u r c h g e k e n n z e i c h n e t, d a s s alle Anschlusselemente (36, 37, 38, 39) der zumindest zwei Verbindungsstränge (34, 35) von ersten Abschnitten der die Kontakthebelanordnungen (30) tragenden einstückigen - In which the switching shaft segments (280) adjacent the switching poles (7) for forming the switching shaft (28) by ¬ at least two connecting strands (34, 35) are ver ¬ bound, each at a distance (A) paral ¬ lel to the axis of rotation (29) and are formed by corresponding connecting elements (36, 38, 37, 39), characterized in that all the connecting elements (36, 37, 38, 39) of the at least two connecting strands (34, 35) of first sections of the contact lever arrangements (36). 30) carrying one-piece
Schaltwellensegmente (280) gebildet sind.  Switching shaft segments (280) are formed.
Mehrpoliges elektrisches Schaltgerät (1) nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, d a s s die korrespondierenden Anschlusselemente (36, 38; 37, 39) Paare vom männlich-weiblich Typ bilden. Mehrpoliges elektrisches Schaltgerät (1) nach einem der Ansprüche 1 oder 2, A multi-pole electrical switching device (1) according to claim 1, characterized in that the corresponding connection elements (36, 38; 37, 39) form pairs of male-female type. Multipole electrical switching device (1) according to one of claims 1 or 2,
d a d u r c h g e k e n n z e i c h n e t, d a s s von zweiten Abschnitten der einstückigen Schaltwellensegmente (280) Stützlager (40) für den AntriebsmechanismusFor example, at second portions of the one-piece shift-shaft segments (280), support bearings (40) for the drive mechanism are provided
(12) an die Schaltwelle (28) koppelnde Kopplungselemente(12) to the switching shaft (28) coupling coupling elements
(41) ausgebildet sind. (41) are formed.
Mehrpoliges elektrisches Schaltgerät (1) nach Anspruch 3, d a d u r c h g e k e n n z e i c h n e t, d a s s das die Stützlager (40) als Laschen geformt sind, die sich quer zur Drehachse (29) der Schaltwelle (28) erstrecken. Multi-pole electrical switching device (1) according to claim 3, characterized in that the support bearings (40) are formed as tabs which extend transversely to the axis of rotation (29) of the switching shaft (28).
Mehrpoliges elektrisches Schaltgerät (1) nach einem der Ansprüchl 1 bis 4, Multi-pole electrical switching device (1) according to one of claims 1 to 4,
d a d u r c h g e k e n n z e i c h n e t, characterized,
dass separate Schaltpolgehäuse (10), die jeweils aus zwei Halbschalen (26, 27) zusammengesetzt sind, jeweils eine isolierende Umhüllung eines Schaltraumes (11) zur Aufnahme jeweils eines einzelnen der Schaltpole (7) bilden und dass Paare korrespondierender Lagermittel (43, 45; 44, 46) die Drehlager bilden, in that separate switching pole housings (10), which are each composed of two half shells (26, 27), each form an insulating sheath of a switching space (11) for accommodating a single one of the switching poles (7) and in that pairs of corresponding bearing means (43, 45; 44, 46) form the pivot bearings,
wobei erste (43, 44) der Lagermittel von dritten Abschnit¬ ten der einstückigen Schaltwellensegmente (280) und zweitewherein first (43, 44) of the bearing means of third Abschnit ¬ th of the integral switching shaft segments (280) and second
(45, 46) der Lagermittel von Abschnitten der Halbschalen(45, 46) of the bearing means of sections of the half-shells
(26, 27) gebildet sind. (26, 27) are formed.
Mehrpoliges elektrisches Schaltgerät (1) nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t, d a s s die Halbschalen (26, 27) zum Durchgriff der Anschlusselemente ((36, 37, 38, 39) sich entlang der Bewegungsbahn der Anschlusselemente erstreckende, nach Art eines gebogenen Langloches ausgebildete Durchbrüche (47, 48) aufweisen. Mehrpoliges elektrisches Schaltgerät (1) nach einem der Ansprüche 5 oder 6, Multi-pole electrical switching device (1) according to claim 5, characterized in that the half-shells (26, 27) for the passage of the connecting elements ((36, 37, 38, 39) along the movement path of the connecting elements extending, formed in the manner of a curved elongated hole breakthroughs ((36 47, 48). Multi-pole electrical switching device (1) according to one of claims 5 or 6,
d a d u r c h g e k e n n z e i c h n e t, d a s s die separaten Schaltpolgehäuse (10) in einem Umgehäuse (20) aufgenommen sind. The separate switching pole housings (10) are accommodated in a surrounding housing (20).
EP10765798.3A 2009-10-15 2010-10-15 Multipole electrical switching device Active EP2489056B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009050296A DE102009050296A1 (en) 2009-10-15 2009-10-15 Circuit breaker, especially for low voltage
DE201010014428 DE102010014428A1 (en) 2010-04-01 2010-04-01 Multipole electrical switching device comprises two switching poles, a drive mechanism and a switching shaft, which is capable of rotating under the effect of the drive mechanism about an axis of rotation formed by pivot bearings
PCT/EP2010/065568 WO2011045428A1 (en) 2009-10-15 2010-10-15 Multipole electrical switching device

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EP2489056B1 (en) 2017-06-14
CN102549701B (en) 2017-09-15
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US9129768B2 (en) 2015-09-08
WO2011045428A1 (en) 2011-04-21
US20120199452A1 (en) 2012-08-09

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