EP0309384A1 - Multi-pole low-voltage switching device with an insulating case divided into parallel chambers - Google Patents

Multi-pole low-voltage switching device with an insulating case divided into parallel chambers Download PDF

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Publication number
EP0309384A1
EP0309384A1 EP88730204A EP88730204A EP0309384A1 EP 0309384 A1 EP0309384 A1 EP 0309384A1 EP 88730204 A EP88730204 A EP 88730204A EP 88730204 A EP88730204 A EP 88730204A EP 0309384 A1 EP0309384 A1 EP 0309384A1
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EP
European Patent Office
Prior art keywords
switching device
parts
chambers
partition
insulating material
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
EP88730204A
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German (de)
French (fr)
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EP0309384B1 (en
Inventor
Martin Dipl.-Ing. Böttcher
Karl-Heinz Dipl.-Ing. Manthe
Bernhard Dr.-Ing. Pfeiffer
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Siemens AG
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Siemens AG
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Publication of EP0309384A1 publication Critical patent/EP0309384A1/en
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Publication of EP0309384B1 publication Critical patent/EP0309384B1/en
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    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities

Definitions

  • the invention relates to a multi-pole low-voltage switchgear with an insulating material housing divided by partitions into parallel chambers and connecting devices arranged in the chambers, fixed and movable contacts and current paths having arc extinguishing devices.
  • a switching device of this type is known from GB-A-1 244 890.
  • the partitions in the area of the arc chambers, in which the stationary contact pieces are also located, are formed in one piece with the insulating material housing, while both partitions in the region of the switching shaft extending transversely to the longitudinal direction of the insulating material part are designed as a continuous, removable block over part of their length are.
  • the remaining parts of the partition walls, which are located opposite the arcing chambers on the other end of the insulating material housing, are in turn formed as a fixed component of the insulating material housing.
  • the construction of sections of the partition walls as a block connected by a cross piece makes the installation of the selector shaft in the switching device easier, but at the same time problems arise due to inevitable dimensional deviations of this relatively complicated plastic body.
  • the removal of the sections of the partition walls does not provide any relief for the further complicated installations, in particular the triggers and auxiliary switches. Proceeding from this, the object of the invention is to make it easier to assemble not only the selector shaft but also the other components by creating a large assembly space.
  • partitions are designed at least over part of their length and height as partitions and the insulating housing and the partitions are provided with interlocking recesses or projections.
  • These partitions which are produced as individual parts, can be essentially flat bodies which can be produced inexpensively and accurately in good quality.
  • the undivided and therefore advantageously easily accessible interior of the insulating material housing is now available. If, for example, a selector shaft with the movable contacts and the associated drive parts are installed, the individual partition parts can then be inserted. The subsequent insertion of the individual partition parts also has a positive effect on the installation of the triggers.
  • the partition parts are designed as a carrier of components of the type mentioned. This can be done in such a way that fastening openings for the aforementioned components or projections, depressions, bearing points for moving parts or other suitable design features are provided on the dividing wall individual parts.
  • the simple shape of the individual parts of the partition and their accessibility from all sides when not installed allows the triggers and other components to be assembled and checked before installation in the insulating housing.
  • the dividing wall individual parts can be formed in one piece with at least one transverse part which closes one of the chambers of the insulating material housing on the end face, ie L-shaped.
  • This design has the advantage that the insulating housing in its basic form is large and open at least on one end face Has mounting space that allows even better access when installing the larger components of the switchgear.
  • partition wall part ready which is designed as a T-shaped part for the end closure of two adjacent chambers.
  • the invention can in principle be carried out in such a way that the entire interior of an insulating material housing of a switching device, that is to say including the arcing chambers, can be divided into chambers by partitions formed as individual parts, it is advisable to dimension the individual parts of the partition wall such that they differ from one another Extend the front of the insulating material housing up to the arc extinguishing devices.
  • the insulating material housing can be designed in accordance with the increased requirements in the area where stress from arcing gases occurs, without this having disadvantages for accessibility when assembling the individual parts of the switching device.
  • the lower housing part 1 is part of the insulating material housing of a low-voltage circuit breaker and can be covered at the top, for example, by an upper housing part, as is shown in the aforementioned GB-A-1 244 890.
  • the lower housing part 1 there are a total of four rooms or chambers 2, 3, 4 and 5 arranged in parallel, between which partition walls 6, 7 and 8 are located.
  • These partitions are not designed to be continuous or in one piece, but are each divided into a part connected to or independent of the lower housing part 1 and a further part of the partition made as a single part.
  • FIG. 1 is part of the insulating material housing of a low-voltage circuit breaker and can be covered at the top, for example, by an upper housing part, as is shown in the aforementioned GB-A-1 244 890.
  • the lower housing part 1 there are a total of four rooms or chambers 2, 3, 4 and 5 arranged in parallel, between which partition walls 6, 7 and 8 are located.
  • These partitions are not designed to
  • the dividing wall parts 6a, 7a and 8a delimit arc chambers 2a, 2b, 2c and 2d, in which there are quenching plate arrangements as well as fixed and movable contact parts.
  • quenching plates 10 and a movable contact lever 11 are shown.
  • the previously mentioned parts are omitted, while a fixed counter-contact 12 cooperating with the contact lever 11 can be seen.
  • the remaining chamber sections 2b, 3b, 4b and 5b are intended to accommodate mechanical parts of the circuit breaker, which include, in particular, a switching shaft for actuating the movable contact levers and the latching and drive parts referred to as a switching lock, as well as triggers and additional components such as auxiliary triggers and auxiliary switches.
  • the partitions of these chambers are formed by partitions 6b, 7b and 8b, which are designed differently. For this purpose, reference is first made to FIGS. 2 and 3.
  • FIG. 2 shows the dividing wall part 6b which has an essentially T-shaped shape.
  • the head part of the dividing wall part 6b has two differently long cross legs 13 and 14, that of the width of the chamber parts 2b and 3b correspond.
  • the chamber part 3b is designed to accommodate the drive and latching parts that are common to all chambers of the switching devices and is somewhat wider than the other chambers. The legs 13 and 14 thus close the chambers 2b and 3b on one end of the lower housing part 1.
  • the partition part 6b serves as a support for accessories.
  • a trigger 17 is shown, which can thus be assembled without any hindrance from adjacent parts before the partition wall part 6b is inserted into the insulating material housing.
  • a shunt release 20 is provided, the plunger 21 of which can interact in a suitable manner with the drive and latching parts and which is provided with connecting pins 22 for supplying its solenoid.
  • FIG. 3 shows an auxiliary switch 24 attached to the individual partition 7b, the actuating plunger 25 of which protrudes into the chamber part 4b and can there interact in a suitable manner with the switching shaft of the switching device.
  • FIG. 3 is also indicated by a dashed line that the height of the partition wall parts 7b and 8b can be different.
  • the partition wall parts to be provided on the upper housing part must also be selected differently.
  • the height of the partition part 7b can be dimensioned for the entire height of the interior of the insulating material housing.
  • the height of the partition part 6b in FIG. 2 can be chosen differently in the manner described.
  • the lower housing part 1 is reinforced in the region of the transition between the chamber parts 2a and 2b and, analogously, at the transition between the other chamber parts, thereby simultaneously creating a space for the arrangement of holes 30 for fastening screws and for grooves 31 , in which the dividing wall parts 6b, 7b and 8b engage.
  • strip-like projections 18 and 26 are provided, which cooperate with corresponding grooves 32 of the lower housing part 1.
  • the ends of the legs 15 of the dividing wall part 6b rest on a housing projection 33 and the end of the leg 23 of the dividing wall part 8b on a housing projection 34.
  • all partition parts are fixed immovably.
  • the procedure is such that after the installation of the stationary parts of the current paths, in particular of connection devices in the front connection spaces 35 and 36 of the lower housing part 1 and the further conductors directly connected therewith a selector shaft with contact levers and drive and latching parts acting on the selector shaft is inserted into the initially undivided space next to the arc chambers. Then the dividing wall individual parts 6b, 7b and 8b are used with the previously attached components of the accessories. In this way, an upper bearing shell for the selector shaft can be formed at the same time if corresponding recesses 27 and 28 are provided according to FIGS. 2 and 3. By attaching an upper part of the housing, all chambers or chamber parts are closed and the dividing wall individual parts 6b, 7b and 8b are also fixed in the remaining direction perpendicular to the plane of the drawing in FIG. 1.
  • the lower housing part 1 has four parallel chambers. Accordingly, a T-shaped partition wall part 6b and two L-shaped partition wall parts 7b and 8b are used. If the same principle is to be applied to a three-pole switch, only a T-shaped partition wall part 6b and a single partition wall part 7b are required.
  • the circuit breaker 40 shown in FIG. 4 has an insulating material housing 41 with a lower housing part 42 and an upper housing part 43.
  • the sectional view shows the main components of a current path of the circuit breaker 40.
  • this comprises a fixed contact piece 45, a movable switching lever 46 which can be pivoted by means of a switching shaft 47 for switching on and off, a flexible current band 50 and a clamping piece 51.
  • the coil 53 belongs to the current path as a whole with 52 designated electromagnetic release and the heating winding 55 for the bimetallic strip 56 of a thermal release designated as a whole with 54, which is connected via a connection bracket 57 to a second connection device 60.
  • the winding 53 of the electromagnetic release 52 is located on a U-shaped magnetic core 61, with the pole faces 62 of which a hinged armature 63 interacts.
  • the upper end of the hinged armature 63 interacts with a release shaft 64, to which the release movement of the bimetallic strip 56 of the thermal release 54 which is perpendicular to the image plane is also transmitted via a transmission part, not shown.
  • the magnetic core 61 with the winding 53 of the electromagnetic release 52 located thereon is located in a fit recess 66 which is integrally formed on an individual partition 67.
  • the bimetallic strip 65 is also attached to the partition 67.
  • the electromagnetic release 52 and the thermal release 54 can be mounted on the partition wall part 67 outside the insulating material housing 41.
  • This subunit is then kept ready at the assembly location of the circuit breaker 40. Then this assembly is inserted into the lower housing part 42.
  • the dividing wall part 67 extends from the connection space in which the connection device 60 is located to an arc quenching chamber 70 which is separated from the adjacent arc extinguishing devices by separate dividing wall parts.
  • the chamber of the insulating material housing 41, in which the described current path and adjacent current paths, not shown, are located, is closed off by the housing upper part 43.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

It is intended to simplify the assembly of the movable contact parts (11) and of the trip devices by means of a modified structure of the case. The isolating walls (6, 7, 8) provided for forming the parallel chambers (2, 3, 4, 5) of the insulating case (1) are designed as isolating wall components (6b, 7b, 8b) at least on a part of their length and height. The trip devices (17, 20) are mounted on the isolating wall components before the latter are inserted in the insulating case (1). Low-voltage switching device of compact construction (MCCB). <IMAGE>

Description

Die Erfindung betrifft ein mehrpoliges Niederspannungs-Schalt­gerät mit einem durch Trennwände in parallele Kammern unter­teilten Isolierstoffgehäuse und in den Kammern angeordneten Anschlußvorrichtungen, feststehende und bewegbare Kontakte sowie Lichtbogenlöscheinrichtungen aufweisenden Strombahnen.The invention relates to a multi-pole low-voltage switchgear with an insulating material housing divided by partitions into parallel chambers and connecting devices arranged in the chambers, fixed and movable contacts and current paths having arc extinguishing devices.

Ein Schaltgerät dieser Art ist durch die GB-A-1 244 890 be­kannt geworden. Dabei sind die Trennwände im Bereich der Lichtbogenkammern, in denen sich auch die feststehenden Kon­taktstücke befinden, einstückig mit dem Isolierstoffgehäuse ausgebildet, während beide Trennwände im Bereich der sich quer zu der Längsrichtung des Isolierstoffgehäuses erstrecken­den Schaltwelle auf einem Teil ihrer Länge als zusammen­hängender, herausnehmbarer Block ausgeführt sind. Widerum als fester Bestandteil des Isolierstoffgehäuses sind die ver­bleibenden Teile der Trennwände ausgebildet, die sich den Lichtbogenkammern gegenüberliegend an der anderen Stirnseite des Isolierstoffgehäuses befinden.A switching device of this type is known from GB-A-1 244 890. The partitions in the area of the arc chambers, in which the stationary contact pieces are also located, are formed in one piece with the insulating material housing, while both partitions in the region of the switching shaft extending transversely to the longitudinal direction of the insulating material part are designed as a continuous, removable block over part of their length are. The remaining parts of the partition walls, which are located opposite the arcing chambers on the other end of the insulating material housing, are in turn formed as a fixed component of the insulating material housing.

Durch die Ausbildung von Teilabschnitten der Trennwände als durch ein Querstück zusammenhängender Block wird zwar der Ein­bau der Schaltwelle in das Schaltgerät erleichtert, jedoch entstehen zugleich Probleme durch unvermeidliche Maßabweichungen dieses verhältnismäßig komplizierten Kunststoffkörpers. Für die weiteren komplizierten Einbauten, insbesondere die Aus­löser und Hilfsschalter, bietet die Herausnahme der Teilab­schnitte der Trennwände keine Erleichterung. Der Erfindung liegt hiervon ausgehend die Aufgabe zugrunde, durch Schaffung eines großen Montageraumes nicht nur die Schaltwelle, sondern auch die weiteren Komponenten leichter montieren zu können.The construction of sections of the partition walls as a block connected by a cross piece makes the installation of the selector shaft in the switching device easier, but at the same time problems arise due to inevitable dimensional deviations of this relatively complicated plastic body. The removal of the sections of the partition walls does not provide any relief for the further complicated installations, in particular the triggers and auxiliary switches. Proceeding from this, the object of the invention is to make it easier to assemble not only the selector shaft but also the other components by creating a large assembly space.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Trennwände mindestens auf einen Teil ihrer Länge und Höhe als Trennwand-Einzelteile ausgebildet sind und das Isolierstoff­gehäuse sowie die Trennwand-Einzelteile mit ineinandergreifen­den Ausnehmungen bzw. Vorsprüngen versehen sind. Diese als Einzelteile hergestellten Trennwände können im wesentlichen ebene Körper sein, die in guter Qualität preiswert und maßgenau herstellbar sind. Beim Zusammenbau des Schaltgerätes steht nun der nicht unterteilte und daher vorteilhaft gut zugängliche Innenraum des Isolierstoffgehäuses zur Verfügung. Sind bei­spielsweise eine mit den bewegbaren Kontakten versehene Schalt­welle und die zugehörigen Antriebsteile montiert, so können anschließend die Trennwand-Einzelteile eingefügt werden. Auch für den Einbau der Auslöser wirkt sich die nachträgliche Ein­fügung der Trennwand-Einzelteile günstig aus.This object is achieved according to the invention in that the partitions are designed at least over part of their length and height as partitions and the insulating housing and the partitions are provided with interlocking recesses or projections. These partitions, which are produced as individual parts, can be essentially flat bodies which can be produced inexpensively and accurately in good quality. When assembling the switchgear, the undivided and therefore advantageously easily accessible interior of the insulating material housing is now available. If, for example, a selector shaft with the movable contacts and the associated drive parts are installed, the individual partition parts can then be inserted. The subsequent insertion of the individual partition parts also has a positive effect on the installation of the triggers.

Insbesondere für den Einbau der Auslöser und von Zubehör, wie z. B. Hilfsschalter und Hilfsauslöser, stellt es eine zusätz­liche wesentliche Vereinfachung dar, wenn nach einer Weiter­bildung der Erfindung die Trennwand-Einzelteile als Träger von Komponenten der erwähnten Art ausgebildet sind. Dies kann in der Weise geschehen, daß an den Trennwand-Einzelteilen Befestigungsöffnungen für die erwähnten Komponenten oder Vor­sprünge, Vertiefungen, Lagerstellen für bewegliche Teile oder andere geeignete Gestaltungsmerkmale vorgesehen sind. die einfache Form der Trennwand-Einzelteile und ihre allseitige Zugänglichkeit in nicht eingebauten Zustand erlaubt es, die Auslöser und sonstigen Komponenten vor dem Einbau in das Isolierstoffgehäuse zu montieren und zu prüfen.In particular for the installation of the trigger and accessories, such as. B. auxiliary switch and auxiliary release, it represents an additional significant simplification if, according to a development of the invention, the partition parts are designed as a carrier of components of the type mentioned. This can be done in such a way that fastening openings for the aforementioned components or projections, depressions, bearing points for moving parts or other suitable design features are provided on the dividing wall individual parts. The simple shape of the individual parts of the partition and their accessibility from all sides when not installed allows the triggers and other components to be assembled and checked before installation in the insulating housing.

Gemäß einer weiteren Ausgestaltung können die Trennwand-Einzel­teile einstückig mit wenigstens einem eine der Kammern des Isolierstoffgehäuses stirnseitig abschließenden Querteil, d. h. L-förmig, ausgebildet sein. Diese Gestaltung bringt den Vorteil mit sich, daß das Isolierstoffgehäuse in seiner Grund­form einen großen und wenigstens an einer Stirnseite offenen Montageraum besitzt, der einen noch besseren Zugang bei dem Einbau der größeren Komponenten des Schaltgerätes gestattet.According to a further embodiment, the dividing wall individual parts can be formed in one piece with at least one transverse part which closes one of the chambers of the insulating material housing on the end face, ie L-shaped. This design has the advantage that the insulating housing in its basic form is large and open at least on one end face Has mounting space that allows even better access when installing the larger components of the switchgear.

Es erweist sich als vorteilhaft, einen Typ von Trennwand-­Einzelteil bereitzuhalten, der für den stirnseitigen Abschluß von zwei benachbarten Kammern als T-förmiges Teil ausgebildet ist. Somit läßt sich durch die Kombination eines T-förmigen Trennwand-Einzelteiles und eines L-förmigen Trennwand-Einzel­der druchgehende stirnseitige Abschluß des Isolierstoffgehäuses eines dreipoligen Schaltgerätes erreichen.It proves to be advantageous to have a type of partition wall part ready, which is designed as a T-shaped part for the end closure of two adjacent chambers. Thus, through the combination of a T-shaped partition wall part and an L-shaped partition wall individual, the end-to-end termination of the insulating material housing of a three-pole switching device can be achieved.

Obwohl die Erfindung im Prinzip so ausführbar ist, daß der gesamte Innenraum eines Isolierstoffgehäuses eines Schalt­gerätes, also einschließlich der Lichtbogenkammern durch als Einzelteile ausgebildete Trennwände in Kammern geteilt werden kann, empfiehlt es sich, die Trennwand-Einzelteile so zu be­messen, daß sie sich von einer Stirnseite des Isolierstoff­gehäuses bis zu den Lichtbogenlöscheinrichtungen erstrecken. Auf diese Weise kann das Isolierstoffgehäuse in dem Bereich, wo eine Beanspruchung durch Lichtbogengase auftritt, den er­höhten Anforderungen entsprechend gestaltet werden, ohne daß hierdurch Nachteile für die Zugänglichkeit bei der Montage der Einzelteile des Schaltgerätes entstehen.Although the invention can in principle be carried out in such a way that the entire interior of an insulating material housing of a switching device, that is to say including the arcing chambers, can be divided into chambers by partitions formed as individual parts, it is advisable to dimension the individual parts of the partition wall such that they differ from one another Extend the front of the insulating material housing up to the arc extinguishing devices. In this way, the insulating material housing can be designed in accordance with the increased requirements in the area where stress from arcing gases occurs, without this having disadvantages for accessibility when assembling the individual parts of the switching device.

Die Erfindung wird im folgenden anhand der in den Figuren dargestellten Ausführungsbeispiele näher erläutert.

  • Die Figur 1 zeigt das Unterteil eines Isolierstoffgehäuses eines Niederspannungs-Leistungsschalters in der Draufsicht.
  • Die Figur 2 zeigt ein T-förmiges Trennwand-Einzelteil für den Einsatz in dem Isolierstoffgehäuse gemäß der Figur 1.
  • Gleichfalls zum Einsetzen in das Isolierstoffgehäuse gemäß der Figur 1 ist ein L-förmiges Trennwand-Einzelteil gemäß der Figur 3 vorgesehen.
  • In der Figur 4 ist ein Schnitt durch einen Niederspannungs-­Leistungsschalter dargestellt.
The invention is explained in more detail below with reference to the exemplary embodiments shown in the figures.
  • FIG. 1 shows the bottom part of an insulating material housing of a low-voltage circuit breaker in a top view.
  • FIG. 2 shows a T-shaped partition part for use in the insulating material housing according to FIG. 1.
  • An L-shaped partition part according to FIG. 3 is also provided for insertion into the insulating material housing according to FIG. 1.
  • FIG. 4 shows a section through a low-voltage circuit breaker.

Das Gehäuseunterteil 1 gemäß der Figur 1 ist Bestandteil des Isolierstoffgehäuses eines Niederspannungs-Leistungsschalters und kann nach oben beispielsweise durch ein Gehäuseoberteil abgedeckt sein, wie dies in der eingangs erwähnten GB-A- 1 244 890 dargestellt ist. In dem Gehäuseunterteil 1 befinden sich insgesamt vier parallel angeordnete Räume oder Kammern 2, 3, 4 und 5, zwischen denen sich Trennwände 6, 7 und 8 be­finden. Diese Trennwände sind nicht durchgehend oder einstückig gestaltet, sondern gliedern sich jeweils in einen mit dem Ge­häuseunterteil 1 verbundenen oder hiervon unabhängigen Teil und einen weiteren, als Einzelteil hergestellten Trennwandteil. Wie die Figur 1 zeigt, begrenzen die Trennwandteile 6a, 7a und 8a Lichtbogenkammern 2a, 2b, 2c und 2d, in denen sich Lösch­blechanordnungen sowie feststehende und bewegbare Kontaktteile befinden. Am Beispiel der Löschkammer 2a sind Löschbleche 10 sowie ein bewegbarer Kontakthebel 11 gezeigt. Im Bereich der Löschkammer 3a sind die zuvor erwähnten Teile fortgelassen, während ein mit dem Kontakthebel 11 zusammenwirkender fest­stehender Gegenkontakt 12 erkennbar ist. Die verbleibenden Kammerabschnitte 2b, 3b, 4b und 5b sind zur Aufnahme mecha­nischer Teile des Leistungsschalters vorgesehen, zu denen ins­besondere eine Schaltwelle zur Betätigung der bewegbaren Kon­takthebel sowie die als Schaltschloß bezeichneten Verklinkungs- und Antriebsteile sowie Auslöser und zusätzliche Komponenten wie Hilfsauslöser und Hilfsschalter gehören. Die Trennwände dieser Kammern werden durch Trennwand-Einzelteile 6b, 7b und 8b gebildet, die unterschiedlich ausgeführt sind. Hierzu wird zu­nächst auf die Figuren 2 und 3 Bezug genommen.The lower housing part 1 according to FIG. 1 is part of the insulating material housing of a low-voltage circuit breaker and can be covered at the top, for example, by an upper housing part, as is shown in the aforementioned GB-A-1 244 890. In the lower housing part 1 there are a total of four rooms or chambers 2, 3, 4 and 5 arranged in parallel, between which partition walls 6, 7 and 8 are located. These partitions are not designed to be continuous or in one piece, but are each divided into a part connected to or independent of the lower housing part 1 and a further part of the partition made as a single part. As FIG. 1 shows, the dividing wall parts 6a, 7a and 8a delimit arc chambers 2a, 2b, 2c and 2d, in which there are quenching plate arrangements as well as fixed and movable contact parts. Using the example of the quenching chamber 2a, quenching plates 10 and a movable contact lever 11 are shown. In the area of the extinguishing chamber 3a, the previously mentioned parts are omitted, while a fixed counter-contact 12 cooperating with the contact lever 11 can be seen. The remaining chamber sections 2b, 3b, 4b and 5b are intended to accommodate mechanical parts of the circuit breaker, which include, in particular, a switching shaft for actuating the movable contact levers and the latching and drive parts referred to as a switching lock, as well as triggers and additional components such as auxiliary triggers and auxiliary switches. The partitions of these chambers are formed by partitions 6b, 7b and 8b, which are designed differently. For this purpose, reference is first made to FIGS. 2 and 3.

In der Figur 2 ist das Trennwand-Einzelteil 6b gezeigt, das eine im wesentlichen T-förmige Gestalt aufweist. Das Kopfteil des Trennwand-Einzelteiles 6b wiest dabei zwei unterschiedlich lange Querschenkel 13 und 14 auf, die der Breite der Kammer­ teile 2b und 3b entsprechen. Der Kammerteil 3b ist zur Auf­nahme der für alle Kammern des Schaltgeräte gemeinsamen An­triebs- und Verklinkungsteile etwas breiter als die übrigen Kammern ausgebildet. Die Schenkel 13 und 14 schließen somit die Kammern 2b und 3b an der einen Stirnseite des Gehäuse­unterteiles 1 ab.FIG. 2 shows the dividing wall part 6b which has an essentially T-shaped shape. The head part of the dividing wall part 6b has two differently long cross legs 13 and 14, that of the width of the chamber parts 2b and 3b correspond. The chamber part 3b is designed to accommodate the drive and latching parts that are common to all chambers of the switching devices and is somewhat wider than the other chambers. The legs 13 and 14 thus close the chambers 2b and 3b on one end of the lower housing part 1.

Zugleich dient das Trennwand-Einzelteil 6b als Träger von Zubehörteilen. Als Beispiel hierfür ist ein Auslöser 17 gezeigt, der somit ohne jede Behinderung durch benachbarte Teile mon­tiert werden kann, bevor das Trennwand-Einzelteil 6b in das Isolierstoffgehäuse eingesetzt wird. Ferner ist ein Arbeits­stromauslösers 20 vorgesehen, dessen Stößel 21 in geeigneter Weise mit den Antriebs- und Verklinkungsteilen zusammenwirken kann und der mit Anschlußstiften 22 zur Versorgung seiner Magnetspule versehen ist.At the same time, the partition part 6b serves as a support for accessories. As an example of this, a trigger 17 is shown, which can thus be assembled without any hindrance from adjacent parts before the partition wall part 6b is inserted into the insulating material housing. Furthermore, a shunt release 20 is provided, the plunger 21 of which can interact in a suitable manner with the drive and latching parts and which is provided with connecting pins 22 for supplying its solenoid.

Zur Abtrennung der Kammerteile 3b, 4b und 5b dienen zwei gleiche Trennwand-Einzelteile 7b und 8b. Diese Teile sind, wie die Figur 3 zeigt, L-förmig oder winkelförmig ausgebildet und können gleichfalls als Träger von Zubehörteilen verwendet werden. Als Beispiel zeigt die Figur 3 einen an dem Trenn­wand-Einzelteil 7b angebrachten Hilfsschalter 24, dessen Betätigungsstößel 25 in den Kammerteil 4b hineinragt und dort in geeigneter Weise mit der Schaltwelle des Schaltgerätes zusammenwirken kann.Two identical dividing wall parts 7b and 8b serve to separate the chamber parts 3b, 4b and 5b. As shown in FIG. 3, these parts are L-shaped or angular and can also be used as carriers for accessories. As an example, FIG. 3 shows an auxiliary switch 24 attached to the individual partition 7b, the actuating plunger 25 of which protrudes into the chamber part 4b and can there interact in a suitable manner with the switching shaft of the switching device.

In der Figur 3 ist ferner durch eine gestrichelte Darstellung angedeutet, daß die Höhe des Trennwand-Einzelteile 7b bzw. 8b verschieden sein kann. Dies bedeutet bei der Verwendung von Isolierstoffgehäusen gleicher Höhe, daß die am Gehäuseober­teil vorzusehenden Trennwandteile gleichfalls unterschiedlich zu wählen sind. Insbesondere kann die Höhe des Trennwand- Einzelteiles 7b für die gesamte Höhe des Innenraumes des Isolierstoffgehäuses bemessen sein. Es kommt auch eine Abstufung der Höhe in Betracht, wenn die Form des am Gehäuseoberteil be­ findlichen Gegenstückes des Trennwand-Einzelteiles entsprechend gestaltet ist. Sinngemäß in der beschriebenen Weise kann die Höhe des Trennwand-Einzelteiles 6b in Figur 2 unterschiedlich gewählt sein.In Figure 3 is also indicated by a dashed line that the height of the partition wall parts 7b and 8b can be different. When using insulating material housings of the same height, this means that the partition wall parts to be provided on the upper housing part must also be selected differently. In particular, the height of the partition part 7b can be dimensioned for the entire height of the interior of the insulating material housing. There is also a gradation of the height into consideration if the shape of the be on the upper housing part sensitive counterpart of the partition part is designed accordingly. The height of the partition part 6b in FIG. 2 can be chosen differently in the manner described.

Wie dies die Figur 1 zeigt, ist das Gehäuseunterteil 1 im Bereich des Überganges zwischen den Kammerteilen 2a und 2b sowie sinngemäß am Übergang zwischen den weiteren Kammerteilen verstärkt ausgeführt, wodurch gleichzeitig ein Raum für die Anordnung von Löchern 30 für Befestigungsschrauben und für Nuten 31 geschaffen wird, in welche die Trennwand-Einzelteile 6b, 7b und 8b eingreifen. An den gegenüberliegenden Enden der Trennwand-Einzelteile 6b, 7b und 8b sind leistenartige Vor­sprünge 18 bzw. 26 vorgesehen, die mit entsprechenden Nuten 32 des Gehäuseunterteiles 1 zusammenwirken. Ferner liegen die Enden der Schenkel 15 des Trennwand-Einzelteiles 6b an einem Gehäusevorsprung 33 und das Ende des Schenkels 23 des Trenn­wand-Einzelteiles 8b an einem Gehäusevorsprung 34 an. Hierdurch sind alle Trennwand-Einzelteile unverrückbar festgelegt.As shown in FIG. 1, the lower housing part 1 is reinforced in the region of the transition between the chamber parts 2a and 2b and, analogously, at the transition between the other chamber parts, thereby simultaneously creating a space for the arrangement of holes 30 for fastening screws and for grooves 31 , in which the dividing wall parts 6b, 7b and 8b engage. At the opposite ends of the dividing wall parts 6b, 7b and 8b, strip-like projections 18 and 26 are provided, which cooperate with corresponding grooves 32 of the lower housing part 1. Furthermore, the ends of the legs 15 of the dividing wall part 6b rest on a housing projection 33 and the end of the leg 23 of the dividing wall part 8b on a housing projection 34. As a result, all partition parts are fixed immovably.

Beim Zusammenbau eines Schaltgerätes unter Verwendung des Ge­häuseunterteiles 1 gemäß der Figur 1 wird in der Weise vorge­gangen, daß nach dem Einbau der ortsfesten Teile der Strom­bahnen, insbesondere von Anschlußvorrichtungen in stirn­seitigen Anschlußräumen 35 und 36 des Gehäuseunterteiles 1 und der hiermit unmittelbar in Verbindung stehenden weiterführenden Leiter eine Schaltwelle mit Kontakthebeln und an der Schalt­welle angreifenden Antriebs- und Verklinkungsteilen in den zunächst nicht unterteilten Raum neben den Lichtbogenkammern eingesetzt wird. Dann werden nacheinander die Trennwand- Einzelteile 6b, 7b und 8b mit den zuvor daran angebrachten Komponenten des Zubehörs eingesetzt. Hiedurch kann zugleich eine obere Lagerschale für die Schaltwelle gebildet werden, wenn gemäß den Figuren 2 und 3 entsprechende Ausnehmungen 27 und 28 vorgesehen werden. Durch das Aufsetzen eines Gehäuse­oberteiles werden alle Kammern bzw. Kammerteile verschlossen und die Trennwand-Einzelteile 6b, 7b und 8b auch in der ver­bleibenden Richtung senkrecht zur Zeichenebene in Figur 1 festgelegt.When assembling a switching device using the lower housing part 1 according to FIG. 1, the procedure is such that after the installation of the stationary parts of the current paths, in particular of connection devices in the front connection spaces 35 and 36 of the lower housing part 1 and the further conductors directly connected therewith a selector shaft with contact levers and drive and latching parts acting on the selector shaft is inserted into the initially undivided space next to the arc chambers. Then the dividing wall individual parts 6b, 7b and 8b are used with the previously attached components of the accessories. In this way, an upper bearing shell for the selector shaft can be formed at the same time if corresponding recesses 27 and 28 are provided according to FIGS. 2 and 3. By attaching an upper part of the housing, all chambers or chamber parts are closed and the dividing wall individual parts 6b, 7b and 8b are also fixed in the remaining direction perpendicular to the plane of the drawing in FIG. 1.

In dem in der Figur 1 gezeigten Beispiel weist das Gehäuse­unterteil 1 vier parallele Kammern auf. Dementsprechend sind ein T-förmiges Trennwand-Einzelteil 6b und zwei L-förmige Trennwand-Einzelteile 7b und 8b verwendet. Soll das gleiche Prinzip auf einen dreipoligen Schalter angewandt werden, so wird lediglich ein T-förmiges Trennwand-Einzelteil 6b und ein einzelnes Trennwand-Einzelteil 7b benötigt.In the example shown in FIG. 1, the lower housing part 1 has four parallel chambers. Accordingly, a T-shaped partition wall part 6b and two L-shaped partition wall parts 7b and 8b are used. If the same principle is to be applied to a three-pole switch, only a T-shaped partition wall part 6b and a single partition wall part 7b are required.

Der in der Figur 4 gezeigte Leistungsschalter 40 weist ein Isolierstoffgehäuse 41 mit einem Gehäuseunterteil 42 und einem Gehäuseoberteil 43 auf. Die Schnittdarstellung läßt die Haupt­bestandteile einer Strombahn des Leistungsschalters 40 erkennen. Diese umfaßt ausgehend von einer ersten Anschlußvorrichtung 44 ein feststehendes Kontaktstück 45, einen bewegbaren Schalthebel 46, der mittels einer Schaltwelle 47 zum Ein- und Ausschalten schwenkbar ist, ferner ein biegsames Stromband 50 und ein Klemmstück 51. Ferner gehören zu der Strombahn die Spule 53 eines als Ganzes mit 52 bezeichneten elektromagnetischen Aus­lösers und die Heizwicklung 55 für den Bimetallstreifen 56 eines als Ganzes mit 54 bezeichneten thermischen Auslösers, die über einen Anschlußwinkel 57 mit einer zweiten Anschlußvor­richtung 60 in Verbindung steht. Die Wicklung 53 des elektro­magnetischen Auslösers 52 befindet sich auf einem U-förmigen Magnetkern 61, mit dessen Polflächen 62 ein Klappanker 63 zusammenwirkt. Das obere Ende des Klappankers 63 wirkt mit einer Auslösewelle 64 zusammen, auf welche über ein nicht dargestelltes Übertragungsteil auch die senkrecht zur Bildebene erfolgende Auslösebewegung des Bimetallstreifens 56 des thermischen Auslösers 54 übertragen wird.The circuit breaker 40 shown in FIG. 4 has an insulating material housing 41 with a lower housing part 42 and an upper housing part 43. The sectional view shows the main components of a current path of the circuit breaker 40. Starting from a first connection device 44, this comprises a fixed contact piece 45, a movable switching lever 46 which can be pivoted by means of a switching shaft 47 for switching on and off, a flexible current band 50 and a clamping piece 51. Furthermore, the coil 53 belongs to the current path as a whole with 52 designated electromagnetic release and the heating winding 55 for the bimetallic strip 56 of a thermal release designated as a whole with 54, which is connected via a connection bracket 57 to a second connection device 60. The winding 53 of the electromagnetic release 52 is located on a U-shaped magnetic core 61, with the pole faces 62 of which a hinged armature 63 interacts. The upper end of the hinged armature 63 interacts with a release shaft 64, to which the release movement of the bimetallic strip 56 of the thermal release 54 which is perpendicular to the image plane is also transmitted via a transmission part, not shown.

Der Magnetkern 61 mit der darauf befindlichen Wicklung 53 des elektromagnetischen Auslösers 52 befindet sich in einer ange­ paßten Ausnehmung 66, die an ein Trennwand-Einzelteil 67 ange­formt ist. Auch der Bimetallstreifen 65 ist an dem Trennwand- Einzelteil 67 angebracht. Somit können der elektromagnetische Auslöser 52 und der thermische Auslöser 54 außerhalb des Isolierstoffgehäuses 41 an dem Trennwand-Einzelteil 67 montiert werden. Diese Untereinheit wird dann am Montageplatz des Leistungsschalters 40 bereitgehalten. Dann wird diese Baugruppe in das Gehäuseunterteil 42 eingesetzt. Wie man erkennt, er­streckt sich das Trennwand-Einzelteil 67 ausgehend von dem Anschlußraum, in dem sich die Anschlußvorrichtung 60 befindet, bis zu einer Lichtbogenlöschkammer 70, die von den benachbarten Lichtbogenlöscheinrichtungen durch gesonderte Trennwandteile getrennt ist. Nach oben wird die Kammer des Isolierstoffge­häuses 41, in der sich die beschriebene Strombahn und nicht gezeigte benachbarte Strombahnen befinden, durch das Gehäuse­oberteil 43 abgeschlossen.The magnetic core 61 with the winding 53 of the electromagnetic release 52 located thereon is located in a fit recess 66 which is integrally formed on an individual partition 67. The bimetallic strip 65 is also attached to the partition 67. Thus, the electromagnetic release 52 and the thermal release 54 can be mounted on the partition wall part 67 outside the insulating material housing 41. This subunit is then kept ready at the assembly location of the circuit breaker 40. Then this assembly is inserted into the lower housing part 42. As can be seen, the dividing wall part 67 extends from the connection space in which the connection device 60 is located to an arc quenching chamber 70 which is separated from the adjacent arc extinguishing devices by separate dividing wall parts. The chamber of the insulating material housing 41, in which the described current path and adjacent current paths, not shown, are located, is closed off by the housing upper part 43.

Claims (5)

1. Mehrpoliges Niederspannungs-Schaltgerät mit einem durch Trennwände (6, 7, 8) in parallele Kammern (2, 3, 4, 5) unter­teilten Isolierstoffgehäuse (1) und in den Kammern angeord­neten Anschlußvorrichtungen, feststehende und bewegbare Kontakte (11, 12) sowie Lichtbogenlöscheinrichtungen (2a, 3a, 4a, 5a) aufweisenden Strombahnen, dadurch gekennzeichnet, daß die Trennwände (6, 7, 8) mindestens auf einem Teil ihrer Länge und Höhe als Trennwand- Einzelteile (6b, 7b, 8b) ausgebildet sind und das Isolier­stoffgehäuse (1) sowie die Trennwand-Einzelteile (6b, 7b, 8b) mit ineinandergreifenden Ausnehmungen (32) bzw. Vorsprüngen (18, 26) versehen sind.1. Multi-pole low-voltage switching device with an insulating material housing (1) divided into parallel chambers (2, 3, 4, 5) by partitions (6, 7, 8) and connecting devices arranged in the chambers, fixed and movable contacts (11, 12) and arc extinguishing devices (2a, 3a, 4a, 5a) having current paths, characterized in that the partitions (6, 7, 8) are designed as partitions (6b, 7b, 8b) at least over part of their length and height, and that Isolierstoffgehäuse (1) and the partition parts (6b, 7b, 8b) with interlocking recesses (32) or projections (18, 26) are provided. 2. Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Trennwand-Einzelteile (6b, 7b, 8b) als Träger von Komponenten bzw. innerem Zubehör (17, 20, 24) ausgebildet sind.2. Switching device according to claim 1, characterized in that the partition parts (6b, 7b, 8b) are designed as carriers of components or internal accessories (17, 20, 24). 3. Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß jedes Trennwand-Einzel­teil (6b, 7b, 8b) einstückig mit wenigstens einem eine der Kammern (2, 3, 4, 5) stirnseitig abschließenden Querteil (13, 14, 23) ausgebildet ist.3. Switching device according to claim 1, characterized in that each partition wall part (6b, 7b, 8b) is integrally formed with at least one of the chambers (2, 3, 4, 5) end cross section (13, 14, 23) . 4. Schaltgerät nach Anspruch 3, dadurch gekennzeichnet, daß ein Trennwand-Einzel­teil (67) für den stirnseitigen Abschluß von zwei benachbarten Kammern (2, 3) als T-förmiges Teil (6b) ausgebildet ist.4. Switching device according to claim 3, characterized in that a partition part (67) for the end closure of two adjacent chambers (2, 3) is designed as a T-shaped part (6b). 5. Schaltgerät nach Anspruch 1, dadurch gekennzeichnet, daß sich die Trennwand-Einzel­teile (6b, 7b, 8b) von einer Stirnseite (Anschlußräume 36) des Isolierstoffgehäuses (1) bis zu den Lichtbogenlöschein­richtungen (2a, 3a, 4a, 5a) erstrecken.5. Switching device according to claim 1, characterized in that the partition wall parts (6b, 7b, 8b) from an end face (connection spaces 36) of the insulating material housing (1) to the arc extinguishing devices (2a, 3a, 4a, 5a) extend.
EP88730204A 1987-09-23 1988-09-07 Multi-pole low-voltage switching device with an insulating case divided into parallel chambers Expired - Lifetime EP0309384B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873732470 DE3732470A1 (en) 1987-09-23 1987-09-23 MULTIPOLE LOW-VOLTAGE SWITCHGEAR WITH AN INSULATING HOUSING LOWER IN PARALLEL CHAMBERS
DE3732470 1987-09-23

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EP0309384A1 true EP0309384A1 (en) 1989-03-29
EP0309384B1 EP0309384B1 (en) 1993-01-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849758A2 (en) * 1996-12-20 1998-06-24 ABBPATENT GmbH Installation switch
CN107845538A (en) * 2017-10-16 2018-03-27 宁波鑫鑫鑫寅电气有限公司 A kind of high power air formula double-fracture isolates on-load switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3843675B2 (en) * 1999-12-13 2006-11-08 富士電機機器制御株式会社 Multi-pole switch terminal unit
DE10013103C1 (en) * 2000-03-17 2001-11-29 Aeg Niederspannungstech Gmbh casing

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Publication number Priority date Publication date Assignee Title
US3421129A (en) * 1966-06-03 1969-01-07 Wood Electric Corp Multipole circuit breaker with sliding contact actuator and swinging latch plate
DE1918851A1 (en) * 1968-04-13 1969-11-06 Bassani Spa Circuit breaker
FR2224861A1 (en) * 1973-04-05 1974-10-31 Matsushita Electric Works Ltd
EP0208613B1 (en) * 1985-07-05 1989-10-11 Telemecanique Protection switch with interconnected poles

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421129A (en) * 1966-06-03 1969-01-07 Wood Electric Corp Multipole circuit breaker with sliding contact actuator and swinging latch plate
DE1918851A1 (en) * 1968-04-13 1969-11-06 Bassani Spa Circuit breaker
FR2224861A1 (en) * 1973-04-05 1974-10-31 Matsushita Electric Works Ltd
EP0208613B1 (en) * 1985-07-05 1989-10-11 Telemecanique Protection switch with interconnected poles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849758A2 (en) * 1996-12-20 1998-06-24 ABBPATENT GmbH Installation switch
DE19653378A1 (en) * 1996-12-20 1998-06-25 Abb Patent Gmbh Installation switch
EP0849758A3 (en) * 1996-12-20 2000-12-20 ABBPATENT GmbH Installation switch
CN107845538A (en) * 2017-10-16 2018-03-27 宁波鑫鑫鑫寅电气有限公司 A kind of high power air formula double-fracture isolates on-load switch
CN107845538B (en) * 2017-10-16 2020-04-14 宁波鑫鑫鑫寅电气有限公司 High-power air type double-fracture isolation load switch

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DE3732470A1 (en) 1989-04-13
EP0309384B1 (en) 1993-01-27
DE3877878D1 (en) 1993-03-11

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