EP1576634A1 - Arrangement used to fix conductor rails for multi-phase switchgears - Google Patents

Arrangement used to fix conductor rails for multi-phase switchgears

Info

Publication number
EP1576634A1
EP1576634A1 EP04787140A EP04787140A EP1576634A1 EP 1576634 A1 EP1576634 A1 EP 1576634A1 EP 04787140 A EP04787140 A EP 04787140A EP 04787140 A EP04787140 A EP 04787140A EP 1576634 A1 EP1576634 A1 EP 1576634A1
Authority
EP
European Patent Office
Prior art keywords
arrangement according
plug
receiving
connecting web
busbars
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
EP04787140A
Other languages
German (de)
French (fr)
Other versions
EP1576634B1 (en
Inventor
Karsten Gerving
Wolfgang Kremers
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.)
Eaton Industries GmbH
Original Assignee
Moeller 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 Moeller GmbH filed Critical Moeller GmbH
Publication of EP1576634A1 publication Critical patent/EP1576634A1/en
Application granted granted Critical
Publication of EP1576634B1 publication Critical patent/EP1576634B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the invention relates to an arrangement for busbar fastening for multiphase switching devices, in particular for contactors, according to the preamble of claim 1.
  • Busbars in multi-phase electrical switching devices have a connection terminal at their outer end and are connected directly or indirectly with their inner end to a fixed contact piece which comes into and out of connection with a movable contact piece. It is known to busbars in the switchgear housing by pressing or overmolding (DE 19904355 A1), by gluing (DE 10036350 A1), by screwing with a nut thread in the switchgear housing (DE 29604726 U1), in threaded plates (DE 19814410 A1) or in the busbars (DE 3232173 C2), by holding down by means of housing parts provided for this purpose (EP 645792 A1), by embedding (DE 10061394 A1) or by riveting.
  • the disadvantages of the known arrangements for busbar fastening are the high technological outlay on equipment, tools and working time for implementing the fastening and the partly impossible, partly only partially possible and partly complex disassembly of the busbars.
  • a customer who wants to carry out the replacement of used contacts by new contacts recommended by the manufacturer himself has to loosen and fasten at least six screws with their six securing elements in a three-phase contactor with screw-mounted busbars.
  • Gluing the busbars requires pretreatment of the surfaces and curing times. Glued parts involve an increased effort in recycling.
  • the invention is therefore based on the object of enabling simple assembly and disassembly of the busbars.
  • the object is achieved according to the invention by the features of the independent claim, while advantageous developments of the invention can be found in the dependent claims.
  • the final fastening as well as the loosening of all busbars on one connection side is carried out with one hand by inserting or pulling out the plug-in comb in or out of the through and receiving bores.
  • the switchgear housing cover When the switchgear housing cover is removed, only two simple and quick handles per connection side are required for the tool-free assembly and disassembly of the busbars. Measured using smaller screws and securing elements, the plug-in comb is much easier to handle.
  • the plug-in comb can be injection-molded from regenerable material to facilitate recycling.
  • the inserted comb made of insulating molding material makes it considerably easier to maintain the required air and creepage distances. This problem plays an increasing role due to the trend towards switching devices with ever smaller dimensions.
  • the surface of the connecting web of the plug-in comb can be used in a skilful way to provide instructions to the customer.
  • the plug-in combs expediently clamp with their plug-in pins in the through bores and / or are held down by a switchgear housing cover.
  • An expedient configuration of the plug-in comb consists in a cylindrical or prismatic design of the plug-in pins, through and receiving bores, for example with a circular or polygonal cross section.
  • An advantageous embodiment consists in longitudinally slotted plug pins for producing the non-positive and positive connection between the through and the receiving bores. Chamfering on the free ends of the plug pins facilitates insertion into the through and receiving bores.
  • An advantageous embodiment of the plug-in comb consists in providing compensation slots in the connecting web for better tolerance compensation of the distances between the receiving bores.
  • a handle-shaped design of the connecting web is advantageous for better handling.
  • the busbars are equipped with knobs, as a result of which the busbars come into clamping connection with the guide elements when they are inserted.
  • phase dividing walls of the switchgear housing ie the phase dividing intermediate walls
  • receiving slots which support the inserted plug-in comb via its connecting web parallel to the connection direction and thus contribute to an increase in the permissible tensile and compressive forces at the connection terminals
  • the connecting web provided with compensation slots and the phase partition walls equipped with the receiving slots expediently interlock.
  • Figure 1 an embodiment of the mounting arrangement according to the invention with the details essential to the invention of a switching device shown in longitudinal section;
  • Figure 2 the arrangement according to the invention in a perspective exploded view;
  • Figure 3 the arrangement according to the invention in a perspective composite representation.
  • the arrangement for busbar fastening is shown with the parts of a multi-pole switching device 2 which are essential for the illustration of the invention in the form of a three-pole contactor.
  • the switching device 2 is surrounded by a switching device housing 4, of which only the upper housing part is shown in the drawing.
  • the switchgear housing 4 is closed off at the front by a removable housing cover 6.
  • One incoming and one outgoing busbar 8 is defined in the switchgear housing 4 for each current phase.
  • Each busbar 8 has at its outer end a terminal 12 which extends into the respective connection space 10 and is provided with a fixed contact piece 14 at its inner end.
  • the busbars 8 belonging to a current phase are electrically connected or disconnected in the usual way by a contact bridge (not shown), the fixed contact pieces 14 coming into and out of connection with movable contact pieces attached to the contact bridge.
  • groove-shaped guide elements 16 are formed in pairs on each connection side for each current phase in the switchgear housing 4.
  • the plate-shaped middle part 18 of the busbars 8 is inserted between the guide elements 16 until it bears against an end face 20 of the guide elements 16 in the mounting position of the busbar 8 shown in FIGS. 1 and 3.
  • Every current rail ne 8 has a through hole 22, which in the mounting position coincides with a receiving hole 24 formed in the switchgear housing 4.
  • the busbars 8 are provided on the central part 18 with knobs 25 which are pronounced on the edge and which, when the busbars 8 are introduced into the guide elements 16, lead to a clamping effect which is sufficient to prevent the busbars 8 from sliding out of the guide elements during transport during the manufacture of the switching device 2 16 to prevent.
  • the fastening arrangement also includes a plug-in comb 26 made of insulating molding material for each connection side.
  • the plug-in comb 26 has a round cylindrical plug-in pin 28 for each current phase.
  • the plug pins 28 belonging to a connection side are connected to one another via a plate-shaped connecting web 30.
  • the spigots 28 protrude in one direction from the connecting web 30.
  • the connecting web 30 is equipped with a handle 32, which is opposite the projecting plug 28.
  • the plug-in combs 26 are pushed with their plug-in pins 28 through the through bores 22 of the busbars 8 into the receiving bores 24 of the switchgear housing 4.
  • the plug pins 28 are designed with insertion chamfers 34 at the free ends.
  • the connecting web 30 is equipped with compensation slots 36 between the plug pins 28 which are open at the bottom as shown in the drawing.
  • the plug-in combs 26 are additionally held down in their assembly position by the attached housing cover 6.
  • the switchgear housing 4 has longitudinal, continuous inner phase partitions 38.
  • phase partitions 38 on each connection side as shown in the drawing, upwardly open receiving slots 40 are formed, which are connected to the receiving bores 24 in each case. because it is on one level.
  • the receiving slots 40 receive the connecting web 30 of the inserted comb 26.
  • the wall parts of the phase dividing walls 38 adjacent to the receiving slots 40 encompass the connecting web 30 on both sides and, at a right angle, on the other hand, the parts of the connecting web 30 adjacent to the compensating slots 36 on both sides of the phase dividing walls 38 ,
  • the partially non-positive, partially positive connection of the busbars 8 in the switchgear housing 4 via the interacting elements, middle parts 18 and guide elements 16, on the one hand, and the interacting elements, receiving bores 24, plug pins 28 and through bores 22, on the other hand, enable a simple, secure and again easily detachable fastening arrangement .
  • the plug pins 28 are subjected to shear stress, particularly in the case of tensile loads on the connection side.
  • the cross section of the plug pins 28 is to be dimensioned in connection with the material to be selected in such a way that it can withstand the expected loads.
  • the plug-in comb 26 is largely raised to tolerances due to the geometric design shown.
  • the present invention is not limited to the embodiments described above, but also encompasses all embodiments having the same effect in the sense of the invention.
  • the invention can also be designed in such a way that the plug pins are simply or crosswise slotted along their longitudinal axis in order to effect an elastic clamping force.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Patch Boards (AREA)
  • Installation Of Bus-Bars (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connection Of Plates (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

An arrangement used to fix conductor rails for multi-phase switchgears to allow for mounting and dismantling the conductor rails in a simple manner is provided. The switchgear housing ( 4 ) comprises straight guide elements ( 16 ) which are used to receive the mounting position using the conductor rails ( 8 ). Each conductor rail ( 8 ) includes a continuous bore ( 22 ) which is covered by a receiving bore ( 24 ) when in a mounted position, the receiving bore being formed in the switchgear housing ( 4 ). Insertion journals ( 28 ) extend through the continuous bores ( 22 ) into the receiving bores ( 24 ) associated therewith and are combined with a connecting web ( 30 ) in order to form an insertion comb ( 26 ) made of an insulating material.

Description

Anordnung zur Stromschienenbefestigung für mehrphasige SchaltgeräteArrangement for busbar mounting for multiphase switchgear
Die Erfindung betrifft eine Anordnung zur Stromschienenbefestigung für mehrphasige Schaltgeräte, insbesondere für Schütze, nach dem Oberbegriff von Anspruch 1.The invention relates to an arrangement for busbar fastening for multiphase switching devices, in particular for contactors, according to the preamble of claim 1.
Stromschienen in mehrphasigen elektrischen Schaltgeräten weisen an ihrem äußeren Ende eine Anschlussklemme auf und sind mit ihrem inneren Ende unmittelbar oder mittelbar mit einem feststehenden Kontaktstück verbunden, das mit einem beweglichen Kontaktstück in und außer Verbindung tritt. Es ist bekannt, Stromschienen im Schaltgerätegehäuse durch Einpressen- oder Um- spritzen (DE 19904355 A1), durch Verkleben (DE 10036350 A1 ), durch Ver- schrauben mit Muttergewinde im Schaltgerätegehäuse (DE 29604726 U1), in Gewindeplatten (DE 19814410 A1) oder in den Stromschienen (DE 3232173 C2), durch Niederhalten mittels dafür vorgesehener Gehäuseteile (EP 645792 A1), durch Einbetten (DE 10061394 A1) oder durch Vernieten zu befestigen.Busbars in multi-phase electrical switching devices have a connection terminal at their outer end and are connected directly or indirectly with their inner end to a fixed contact piece which comes into and out of connection with a movable contact piece. It is known to busbars in the switchgear housing by pressing or overmolding (DE 19904355 A1), by gluing (DE 10036350 A1), by screwing with a nut thread in the switchgear housing (DE 29604726 U1), in threaded plates (DE 19814410 A1) or in the busbars (DE 3232173 C2), by holding down by means of housing parts provided for this purpose (EP 645792 A1), by embedding (DE 10061394 A1) or by riveting.
Die Nachteile der bekannten Anordnungen zur Stromschienenbefestigung sind der hohe technologische Aufwand an Ausrüstung, Werkzeugen und Arbeitszeit zur Realisierung der Befestigung und die teils unmögliche, teils nur bedingt mögliche und teils aufwändige Demontage der Stromschienen. Beispielsweise hat ein Kunde, der den vom Hersteller empfohlenen Austausch von verbrauchten Kontakten gegen neue Kontakte selbst vornehmen will, bei einem dreiphasigen Schütz mit schraubbefestigten Stromschienen wenigstens sechs Schrauben mit ihren sechs Sicherungselementen zu lösen sowie wieder zu befestigen. Kleben der Stromschienen erfordert Vorbehandlung der Flächen und Aushärtzeiten. Verklebte Teile ziehen einen erhöhten Aufwand beim Recycling nach sich.The disadvantages of the known arrangements for busbar fastening are the high technological outlay on equipment, tools and working time for implementing the fastening and the partly impossible, partly only partially possible and partly complex disassembly of the busbars. For example, a customer who wants to carry out the replacement of used contacts by new contacts recommended by the manufacturer himself has to loosen and fasten at least six screws with their six securing elements in a three-phase contactor with screw-mounted busbars. Gluing the busbars requires pretreatment of the surfaces and curing times. Glued parts involve an increased effort in recycling.
Der Erfindung liegt daher die Aufgabe zugrunde, eine einfache Montage und Demontage der Stromschienen zu ermöglichen. Ausgehend von einer Anordnung der eingangs genannten Art wird die Aufgabe erfindungsgemäß durch die Merkmale des unabhängigen Anspruches gelöst, während den abhängigen Ansprüchen vorteilhafte Weiterbildungen der Erfindung zu entnehmen sind.The invention is therefore based on the object of enabling simple assembly and disassembly of the busbars. Starting from an arrangement of the type mentioned in the introduction, the object is achieved according to the invention by the features of the independent claim, while advantageous developments of the invention can be found in the dependent claims.
Mit den geradlinig ausgebildeten Führungselementen und den Aufnahmebohrungen im Schaltgerätegehäuse, den Durchgangsbohrungen in den Stromschienen und je einem Steckkamm pro Anschlussseite wird eine Anordnung zur Stromschienenbefestigung geschaffen, die mit wenigen translatorischen Fügebewegungen zu einer stabilen Festlegung der Stromschienen führt. Die Befestigung der Stromschienen ist damit leicht zu automatisieren. Die erfindungsgemäße Anordnung erfordert weder ein Muttergewinde in den Stromschienen oder im Schaltgerätegehäuse noch Gewindeplatten und verzichtet auf die für Schraubverbindungen erforderlichen Sicherungselemente. Durch das Fehlen von Eisenteilen erfolgt keine negative magnetische Beeinflussung der Stromleitung über die Stromschienen. Sowohl das abschließende Befestigen als auch das Lösen aller Stromschienen einer Anschlussseite erfolgt mit einem Handgriff durch Einstecken bzw. Herausziehen des Steckkamms in die bzw. aus den Durchgangs- und Aufnahmebohrungen. Bei entferntem Schalt- geräte-Gehäusedeckel sind für die werkzeuglose Montage bzw. Demontage der Stromschienen lediglich zwei einfache und schnell auszuführende Handgriffe pro Anschlussseite erforderlich. Der Steckkamm lässt sich gemessen an kleineren Schrauben und Sicherungselementen wesentlich besser handhaben. Der Steckkamm kann zur Erleichterung des Recyclings aus regenerierbarem Material gespritzt werden. Der eingesetzte Steckkamm aus isolierendem Formstoff erleichtert wesentlich die Einhaltung der geforderten Luft- und Kriechstrecken. Diese Problematik spielt eine zunehmende Rolle durch den Trend zu Schaltgeräten mit immer kleineren Abmessungen. Die Oberfläche des Verbindungssteges des Steckkammes kann in geschickter Weise zum Aufbringen von Hinweisen an den Kunden genutzt werden. Zweckmäßigerweise klemmen die Steckkämme mit ihren Steckzapfen in den Durchgangsbohrungen oder/und werden durch einen Schaltgeräte-Gehäuse- deckel niedergehalten.With the straight-line guide elements and the mounting holes in the switchgear housing, the through holes in the busbars and one plug-in comb on each connection side, an arrangement for busbar mounting is created that leads to stable fixing of the busbars with just a few translational joining movements. The fastening of the busbars is therefore easy to automate. The arrangement according to the invention does not require a nut thread in the busbars or in the switchgear housing or threaded plates and dispenses with the securing elements required for screw connections. The absence of iron parts means there is no negative magnetic influence on the power line via the busbars. The final fastening as well as the loosening of all busbars on one connection side is carried out with one hand by inserting or pulling out the plug-in comb in or out of the through and receiving bores. When the switchgear housing cover is removed, only two simple and quick handles per connection side are required for the tool-free assembly and disassembly of the busbars. Measured using smaller screws and securing elements, the plug-in comb is much easier to handle. The plug-in comb can be injection-molded from regenerable material to facilitate recycling. The inserted comb made of insulating molding material makes it considerably easier to maintain the required air and creepage distances. This problem plays an increasing role due to the trend towards switching devices with ever smaller dimensions. The surface of the connecting web of the plug-in comb can be used in a skilful way to provide instructions to the customer. The plug-in combs expediently clamp with their plug-in pins in the through bores and / or are held down by a switchgear housing cover.
Eine zweckmäßige Ausgestaltung des Steckkammes besteht in einer zylindrischen oder prismatischen Ausbildung der Steckzapfen, Durchgangs- und Aufnahmebohrungen, beispielsweise mit kreisförmigem oder polygonalem Querschnitt. Ein vorteilhafte Ausgestaltung besteht in längsgeschlitzten Steckzapfen zur Herstellung der kraft- und formschlüssigen Verbindung zwischen den Durchgangs- und den Aufnahmebohrungen. Fasen an den freien Enden der Steckzapfen erleichtem das Einführen in die Durchgangs- und die Aufnahmebohrungen.An expedient configuration of the plug-in comb consists in a cylindrical or prismatic design of the plug-in pins, through and receiving bores, for example with a circular or polygonal cross section. An advantageous embodiment consists in longitudinally slotted plug pins for producing the non-positive and positive connection between the through and the receiving bores. Chamfering on the free ends of the plug pins facilitates insertion into the through and receiving bores.
Eine vorteilhafte Ausgestaltung des Steckkammes besteht darin, Ausgleichs- schlitze im Verbindungssteg zum besseren Toleranzausgleich der Abstände zwischen den Aufnahmebohrungen vorzusehen. Zur besseren Handhabung ist eine griffförmige Ausbildung des Verbindungssteges von Vorteil.An advantageous embodiment of the plug-in comb consists in providing compensation slots in the connecting web for better tolerance compensation of the distances between the receiving bores. A handle-shaped design of the connecting web is advantageous for better handling.
Um die in den Führungselementen eingesetzten Stromschienen vor dem Ein- setzen des Steckkammes gegen Herausfallen zu sichern, sind die Stromschienen mit Noppen ausgestattet, wodurch die Stromschienen beim Einführen in die Führungselemente in klemmende Verbindung mit diesen treten.In order to secure the busbars used in the guide elements against falling out before inserting the plug-in comb, the busbars are equipped with knobs, as a result of which the busbars come into clamping connection with the guide elements when they are inserted.
Ein vorteilhafte Weiterbildung der Anordnung besteht darin, die Phasentrenn- wände des Schaltgerätegehäuses, d.h. die phasentrennenden Zwischenwände, mit Aufnahmeschlitzen auszustatten, die den eingesteckten Steckkamm über seinen Verbindungssteg parallel zur Anschlussrichtung abstützen und somit zu einer Erhöhung der zulässigen Zug- und Druckkräfte an den Anschlussklemmen beitragen. Dabei greifen zweckmäßigerweise der mit Aus- gleichsschlitzen versehene Verbindungssteg und die mit den Aufnahmeschlitzen ausgestatteten Phasentrennwände kreuzweise ineinander. Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Figuren erläuterten Ausführungsbeispiel. Es zeigenAn advantageous further development of the arrangement is to provide the phase dividing walls of the switchgear housing, ie the phase dividing intermediate walls, with receiving slots which support the inserted plug-in comb via its connecting web parallel to the connection direction and thus contribute to an increase in the permissible tensile and compressive forces at the connection terminals , In this case, the connecting web provided with compensation slots and the phase partition walls equipped with the receiving slots expediently interlock. Further details and advantages of the invention result from the following exemplary embodiment explained with reference to figures. Show it
Figur 1 : eine Ausführungsform der erfindungsgemäßen Befestigungsanord- nung mit den erfindungswesentlichen Details eines im Längsschnitt dargestellten Schaltgerätes; Figur 2: die erfindungsgemäße Anordnung in perspektivischer auseinandergezogener Darstellung; Figur 3: die erfindungsgemäße Anordnung in perspektivischer zusammenge- setzter Darstellung.Figure 1: an embodiment of the mounting arrangement according to the invention with the details essential to the invention of a switching device shown in longitudinal section; Figure 2: the arrangement according to the invention in a perspective exploded view; Figure 3: the arrangement according to the invention in a perspective composite representation.
In der Zeichnung ist die Anordnung zur Stromschienenbefestigung mit den zur Darstellung der Erfindung wesentlichen Teilen eines mehrpoligen Schaltgerätes 2 in Form eines dreipoligen Schützes dargestellt. Das Schaltgerät 2 ist von einem Schaltgerätegehäuse 4 umgeben, von dem in der Zeichnung nur das Gehäuseoberteil dargestellt ist. Das Schaltgerätegehäuse 4 wird, wie in Fig. 1 dargestellt, frontseitig von einem abnehmbaren Gehäusedeckel 6 abgeschlossen. Pro Stromphase ist je eine zugehende und eine abgehende Stromschiene 8 in dem Schaltgerätegehäuse 4 festgelegt. Jede Stromschiene 8 weist an ih- rem äußeren Ende eine in den jeweiligen Anschlussraum 10 reichende Anschlussklemme 12 auf und ist an ihrem inneren Ende mit einem feststehenden Kontaktstück 14 versehen. Die zu einer Stromphase gehörenden Stromschienen 8 werden in üblicher Weise durch eine nicht dargestellte Kontaktbrücke elektrisch verbunden bzw. getrennt, wobei die feststehenden Kontaktstücke 14 mit an der Kontaktbrücke befestigten beweglichen Kontaktstücken in und außer Verbindung treten.In the drawing, the arrangement for busbar fastening is shown with the parts of a multi-pole switching device 2 which are essential for the illustration of the invention in the form of a three-pole contactor. The switching device 2 is surrounded by a switching device housing 4, of which only the upper housing part is shown in the drawing. As shown in FIG. 1, the switchgear housing 4 is closed off at the front by a removable housing cover 6. One incoming and one outgoing busbar 8 is defined in the switchgear housing 4 for each current phase. Each busbar 8 has at its outer end a terminal 12 which extends into the respective connection space 10 and is provided with a fixed contact piece 14 at its inner end. The busbars 8 belonging to a current phase are electrically connected or disconnected in the usual way by a contact bridge (not shown), the fixed contact pieces 14 coming into and out of connection with movable contact pieces attached to the contact bridge.
In dem Schaltgerätegehäuse 4 sind, wie in Fig. 2 gezeigt, auf jeder Anschlussseite für jede Stromphase paarweise gegenüberstehend nutenförmige Füh- rungselemente 16 ausgebildet. Zwischen die Führungselemente 16 wird der plattenförmige Mittelteil 18 der Stromschienen 8 so weit eingeschoben, bis er in der in Fig. 1 und 3 dargestellten Montageposition der Stromschiene 8 an einer Abschlussfläche 20 der Führungselemente 16 anliegt. Jede Stromschie- ne 8 weist eine Durchgangsbohrung 22 auf, die sich in der Montageposition jeweils mit einer im Schaltgerätegehäuse 4 ausgebildeten Aufnahmebohrung 24 deckt. Die Stromschienen 8 sind am Mittelteil 18 mit randseitig ausgeprägten Noppen 25 versehen, die beim Einführen der Stromschienen 8 in die Füh- rungselemente 16 zu einer Klemmwirkung führen, die ausreicht, die Stromschienen 8 beim Transport während der Fertigung des Schaltgerätes 2 am Herausgleiten aus den Führungselementen 16 zu hindern.As shown in FIG. 2, groove-shaped guide elements 16 are formed in pairs on each connection side for each current phase in the switchgear housing 4. The plate-shaped middle part 18 of the busbars 8 is inserted between the guide elements 16 until it bears against an end face 20 of the guide elements 16 in the mounting position of the busbar 8 shown in FIGS. 1 and 3. Every current rail ne 8 has a through hole 22, which in the mounting position coincides with a receiving hole 24 formed in the switchgear housing 4. The busbars 8 are provided on the central part 18 with knobs 25 which are pronounced on the edge and which, when the busbars 8 are introduced into the guide elements 16, lead to a clamping effect which is sufficient to prevent the busbars 8 from sliding out of the guide elements during transport during the manufacture of the switching device 2 16 to prevent.
Zu der Befestigungsanordnung gehört weiterhin ein Steckkamm 26 aus isolie- rendem Formstoff für jede Anschlussseite. Der Steckkamm 26 weist für jede Stromphase einen rundzylindrischen Steckzapfen 28 auf. Die zu einer Anschlussseite gehörenden Steckzapfen 28 sind miteinander über einen platte nförmigen Verbindungssteg 30 verbunden. Von dem Verbindungssteg 30 ragen in eine Richtung die Steckzapfen 28 ab. Der Verbindungssteg 30 ist mit einem Handgriff 32 ausgestattet, der den abragenden Steckzapfen 28 gegenüberliegt.The fastening arrangement also includes a plug-in comb 26 made of insulating molding material for each connection side. The plug-in comb 26 has a round cylindrical plug-in pin 28 for each current phase. The plug pins 28 belonging to a connection side are connected to one another via a plate-shaped connecting web 30. The spigots 28 protrude in one direction from the connecting web 30. The connecting web 30 is equipped with a handle 32, which is opposite the projecting plug 28.
Zur Festlegung der Stromschienen 8 in ihrer Montageposition werden die Steckkämme 26 mit ihren Steckzapfen 28 durch die Durchgangsbohrungen 22 der Stromschienen 8 klemmend in die Aufnahmebohrungen 24 des Schaltgerätegehäuses 4 geschoben. Zur Erleichterung des Einsteckens sind die Steckzapfen 28 an den freien Enden mit Einführfasen 34 ausgeführt. Um Toleranzen zwischen den geometrischen Abständen der Aufnahmebohrungen 24 und der Steckzapfen 28 gut ausgleichen zu können, ist der Verbindungssteg 30 mit gemäß den Darstellungen in der Zeichnung nach unten offenen Ausgleichsschlitzen 36 zwischen den Steckzapfen 28 ausgestattet. Die Steckkämme 26 werden in ihrer Montageposition zusätzlich durch den aufgesetzten Gehäusedeckels 6 niedergehalten.To fix the busbars 8 in their assembly position, the plug-in combs 26 are pushed with their plug-in pins 28 through the through bores 22 of the busbars 8 into the receiving bores 24 of the switchgear housing 4. To facilitate insertion, the plug pins 28 are designed with insertion chamfers 34 at the free ends. In order to be able to compensate well for tolerances between the geometrical distances between the receiving bores 24 and the plug pins 28, the connecting web 30 is equipped with compensation slots 36 between the plug pins 28 which are open at the bottom as shown in the drawing. The plug-in combs 26 are additionally held down in their assembly position by the attached housing cover 6.
Das Schaltgerätegehäuse 4 weist längs verlaufende, durchgehende innere Phasentrennwände 38 auf. In den Phasentrennwänden 38 sind auf jeder Anschlussseite gemäß den Darstellungen in der Zeichnung nach oben offene Aufnahmeschlitze 40 ausgebildet, die mit den Aufnahmebohrungen 24 in je- weils einer Ebene liegen. Die Aufnahmeschlitze 40 nehmen den Verbindungssteg 30 des eingeführten Steckkammes 26 auf. Dabei umgreifen einerseits die den Aufnahmeschlitzen 40 benachbarten Wandteile der Phasentrennwände 38 beidseitig den Verbindungssteg 30 und dazu im rechten Winkel anderseits die den Ausgleichsschlitzen 36 benachbarten Teile des Verbindungssteges 30 beidseitig die Phasentrennwände 38. Auf diese Weise gehen die Steckkämme 26 mit dem Schaltgerätegehäuse 4 kreuzförmige Verbindungen ein.The switchgear housing 4 has longitudinal, continuous inner phase partitions 38. In the phase partitions 38 on each connection side, as shown in the drawing, upwardly open receiving slots 40 are formed, which are connected to the receiving bores 24 in each case. because it is on one level. The receiving slots 40 receive the connecting web 30 of the inserted comb 26. Here, on the one hand, the wall parts of the phase dividing walls 38 adjacent to the receiving slots 40 encompass the connecting web 30 on both sides and, at a right angle, on the other hand, the parts of the connecting web 30 adjacent to the compensating slots 36 on both sides of the phase dividing walls 38 ,
Durch die teils kraftschlüssige, teils formschlüssige Verbindung der Strom- schienen 8 im Schaltgerätegehäuse 4 über die zusammenwirkenden Elemente Mittelteile 18 und Führungselemente 16 einerseits sowie die zusammenwirkenden Elemente Aufnahmebohrungen 24, Steckzapfen 28 und Durchgangsbohrungen 22 anderseits wird eine einfache, sichere und wieder problemlos lösbare Befestigungsanordnung realisiert. Die Steckzapfen 28 werden auf Scherung beansprucht, insbesondere bei anschlussseitigen Zugbelastungen. Der Querschnitt der Steckzapfen 28 ist in Verbindung mit dem auszuwählenden Werkstoff so zu bemessen, dass er den zu erwartenden Beanspruchungen standhält. Der Steckkamm 26 ist durch die dargestellte geometrische Ausbildung weitgehend erhaben gegenüber Toleranzen. Unterschiede des Schaltgerätegehäuses 4 in den Phasenabständen im Zehntel-Millimeter-Bereich werden durch den Steckkamm 26 problemlos bewältigt. Um die Aufmerksamkeit des demontierenden und montierenden Kunden auf die Steckkämme 26 zu lenken, empfiehlt sich für diese Teile eine deutlich andere Farbgestaltung gegenüber dem Schaltgerätegehäuse 4.The partially non-positive, partially positive connection of the busbars 8 in the switchgear housing 4 via the interacting elements, middle parts 18 and guide elements 16, on the one hand, and the interacting elements, receiving bores 24, plug pins 28 and through bores 22, on the other hand, enable a simple, secure and again easily detachable fastening arrangement , The plug pins 28 are subjected to shear stress, particularly in the case of tensile loads on the connection side. The cross section of the plug pins 28 is to be dimensioned in connection with the material to be selected in such a way that it can withstand the expected loads. The plug-in comb 26 is largely raised to tolerances due to the geometric design shown. Differences of the switchgear housing 4 in the phase intervals in the tenths of a millimeter range are easily coped with by the plug-in comb 26. In order to draw the attention of the dismantling and assembling customer to the plug-in combs 26, a significantly different color design is recommended for these parts compared to the switchgear housing 4.
Die vorliegende Erfindung ist nicht auf die vorstehend beschriebenen Ausführungsformen beschränkt, sondern umfasst auch alle im Sinne der Erfindung gleichwirkenden Ausführungsformen. So lässt sich die Erfindung beispielsweise noch in der Weise ausgestalten, dass zur Bewirkung einer elastischen Klemmkraft die Steckzapfen entlang ihrer Längsachse einfach oder kreuzweise geschlitzt sind. The present invention is not limited to the embodiments described above, but also encompasses all embodiments having the same effect in the sense of the invention. For example, the invention can also be designed in such a way that the plug pins are simply or crosswise slotted along their longitudinal axis in order to effect an elastic clamping force.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Anordnung zur Stromschienenbefestigung für mehrphasige Schaltgeräte, wobei die im Schaltgerätegehäuse (4) befestigten zugehenden und abge- henden Stromschienen (8) jeweils an ihrem äußeren Ende eine Anschlussklemme (12) aufweisen und mit ihrem inneren Ende zu einem mit einem beweglichen Kontaktstück in Wirkverbindung tretenden feststehenden Kontaktstück (14) führen, dadurch gekennzeichnet, - dass das Schaltgerätegehäuse (4) geradlinige Führungselemente (16) zur Aufnahme der Stromschienen (8) in ihre Montageposition aufweist, - dass jede Stromschiene (8) eine Durchgangsbohrung (22) aufweist, die sich in Montageposition mit einer im Schaltgerätegehäuse (4) ausgebildeten Aufnahmebohrung (24) deckt, und - dass Steckzapfen (28) durch die Durchgangsbohrungen (22) in die zugehörigen Aufnahmebohrungen (24) reichen und mit einem Verbindungssteg (30) zu einem Steckkamm (26) aus Isolierstoff vereinigt sind.1. Arrangement for busbar fastening for multiphase switchgear, the incoming and outgoing busbars (8) fastened in the switchgear housing (4) each have a connection terminal (12) at their outer end and with their inner end to an active connection with a movable contact piece leading stationary contact piece (14), characterized in that - the switchgear housing (4) has straight guide elements (16) for receiving the busbars (8) in their mounting position, - that each busbar (8) has a through hole (22) which is in the assembly position with a receiving bore (24) formed in the switchgear housing (4), and - that plug pins (28) extend through the through bores (22) into the associated receiving bores (24) and with a connecting web (30) to a plug comb (26 ) are made of insulating material.
2. Anordnung nach vorstehendem Anspruch, dadurch gekennzeichnet, dass die Steckzapfen (28) in den Aufnahmebohrungen (24) klemmen.2. Arrangement according to the preceding claim, characterized in that the plug pins (28) clamp in the receiving bores (24).
3. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Steckkämme (26) von einem Schaltgeräte-Gehäusedeckel (6) niedergehalten werden.3. Arrangement according to one of the preceding claims, characterized in that the plug-in combs (26) are held down by a switchgear housing cover (6).
4. Anordnung nach vorstehendem Anspruch, dadurch gekennzeichnet, dass Steckzapfen (28), Durchgangsbohrungen (22) und Aufnahmebohrungen (24) zylindrisch oder prismatisch ausgebildet sind.4. Arrangement according to the preceding claim, characterized in that plug pins (28), through bores (22) and receiving bores (24) are cylindrical or prismatic.
5. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Steckzapfen (28) entlang ihrer Längsachse geschlitzt sind. 5. Arrangement according to one of the preceding claims, characterized in that the plug pins (28) are slotted along their longitudinal axis.
6. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Steckzapfen (28) an ihren freien Enden Einführfasen (34) aufweisen.6. Arrangement according to one of the preceding claims, characterized in that the plug pins (28) have insertion bevels (34) at their free ends.
7. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Verbindungssteg (30) zwischen den Steckzapfen (28) im wesentlichen parallel zu den Steckzapfen (28) verlaufende, einseitig offene Ausgleichsschlitze (36) aufweist.7. Arrangement according to one of the preceding claims, characterized in that the connecting web (30) between the plug pins (28) substantially parallel to the plug pins (28) has one-sided open compensation slots (36).
8. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Verbindungssteg (30) den Steckzapfen (28) gegenüberliegend griffförmig ausgebildet ist.8. Arrangement according to one of the preceding claims, characterized in that the connecting web (30) opposite the plug-in pins (28) is formed in the shape of a handle.
9. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekenn- zeichnet, dass die Stromschienen (8) mit den Führungselementen (16) in Klemmverbindung tretende Noppen (25) ausweisen.9. Arrangement according to one of the preceding claims, characterized in that the busbars (8) with the guide elements (16) have knobs (25) that come into clamping connection.
10. Anordnung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass in Phasentrennwänden (38) des Schaltgerätegehäuses (4) den Verbindungssteg (30) aufnehmende Aufnahmeschlitze (40) ausgebildet sind.10. Arrangement according to one of the preceding claims, characterized in that in the phase partitions (38) of the switchgear housing (4) the connecting web (30) receiving receiving slots (40) are formed.
11. Anordnung nach vorstehendem Anspruch, dadurch gekennzeichnet, dass der Verbindungssteg (30) mit den Aufnahmeschlitzen (40) in Kreuzverbin- düng tretende Ausgleichsschlitze (36) aufweist. 11. Arrangement according to the preceding claim, characterized in that the connecting web (30) with the receiving slots (40) in cross-connection compensating slots (36).
EP04787140A 2003-10-16 2004-09-15 Arrangement used to fix conductor rails for multi-phase switchgears Active EP1576634B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10348092 2003-10-16
DE10348092A DE10348092B4 (en) 2003-10-16 2003-10-16 Arrangement for busbar mounting for multiphase switching devices
PCT/EP2004/052175 WO2005038840A1 (en) 2003-10-16 2004-09-15 Arrangement used to fix conductor rails for multi-phase switchgears

Publications (2)

Publication Number Publication Date
EP1576634A1 true EP1576634A1 (en) 2005-09-21
EP1576634B1 EP1576634B1 (en) 2006-04-12

Family

ID=34441999

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Application Number Title Priority Date Filing Date
EP04787140A Active EP1576634B1 (en) 2003-10-16 2004-09-15 Arrangement used to fix conductor rails for multi-phase switchgears

Country Status (9)

Country Link
US (1) US7307500B2 (en)
EP (1) EP1576634B1 (en)
JP (1) JP4295323B2 (en)
CN (1) CN100511525C (en)
AT (1) ATE323321T1 (en)
DE (2) DE10348092B4 (en)
ES (1) ES2263145T3 (en)
HK (1) HK1095422A1 (en)
WO (1) WO2005038840A1 (en)

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CN105762032B (en) * 2016-04-08 2018-05-01 首瑞（天津）电气设备有限公司 Buckle releaser and breaker in breaker

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Also Published As

Publication number Publication date
HK1095422A1 (en) 2007-05-04
ATE323321T1 (en) 2006-04-15
ES2263145T3 (en) 2006-12-01
DE10348092A1 (en) 2005-05-25
CN100511525C (en) 2009-07-08
DE502004000431D1 (en) 2006-05-24
CN1868018A (en) 2006-11-22
DE10348092B4 (en) 2006-01-26
JP2007507839A (en) 2007-03-29
WO2005038840A1 (en) 2005-04-28
US7307500B2 (en) 2007-12-11
EP1576634B1 (en) 2006-04-12
JP4295323B2 (en) 2009-07-15
US20070042624A1 (en) 2007-02-22

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