WO2002027740A1 - Displaceable contact support for a low-voltage power switch with a separator for the contact levers - Google Patents

Displaceable contact support for a low-voltage power switch with a separator for the contact levers Download PDF

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Publication number
WO2002027740A1
WO2002027740A1 PCT/DE2001/002679 DE0102679W WO0227740A1 WO 2002027740 A1 WO2002027740 A1 WO 2002027740A1 DE 0102679 W DE0102679 W DE 0102679W WO 0227740 A1 WO0227740 A1 WO 0227740A1
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WO
WIPO (PCT)
Prior art keywords
movable contact
contact carrier
web
contact
side parts
Prior art date
Application number
PCT/DE2001/002679
Other languages
German (de)
French (fr)
Inventor
Michael Bach
Michael Sebekow
Guenter Seidler-Stahl
Detlev Schmidt
Ingo Thiede
Sezai Tuerkmen
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2002027740A1 publication Critical patent/WO2002027740A1/en

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Classifications

    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
    • H01H2001/228—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars with insulating spacers between the contact bars

Definitions

  • Movable contact carrier for a low-voltage circuit breaker with a spacer for the contact lever
  • the invention relates to the realization of a defined distance of the movably mounted contact levers in the contact carrier of a low-voltage circuit breaker by means of a spacer.
  • US Pat. No. 4,764,650 shows a contact carrier made of an insulating material which has a multiplicity of cutouts for receiving the contact levers.
  • the intermediate walls located between the cutouts are relatively thick due to the mechanical strength of the insulating material. This means that the space available for the contact levers is reduced accordingly.
  • the distance between the contact levers is realized by a plastic part made of a thermoplastic.
  • the object of the invention is therefore to provide a contact carrier with a device which ensures a defined distance between the contact levers, which causes no thermal problems and keeps the frictional forces between the contact levers low.
  • the movable contact carrier for a low-voltage circuit breaker has a spacer for the contact lever, which consists of two side parts which are connected by a web and extend from this web at right angles and parallel in the direction of the contact lever that spacers are arranged between these side parts on the web, which extend parallel to the side parts and to one another from the web in the same direction as the side parts, and that both the end parts and the spacers are mutually aligned bores for passing the contact joint bolt for the contact lever exhibit.
  • the spacers face each other and from the
  • the web provided between the end parts is appropriately profiled. It can advantageously have a trough-shaped cross section or, for example, a cross section in the form of an elongated U.
  • the spacers advantageously have essentially the same shape as the side parts. However, in deviation from this, they can also be circular, elliptical or in the form of any polygon.
  • the spacer is expediently produced in one piece as an aluminum die-cast part. That means the spacers in the form of Med7On very thin panes, which is why the space required for this is small.
  • the spacer can either be cast into the thermoset contact carrier during manufacture, or it can be inserted later and attached to the contact carrier in a suitable manner.
  • Fig.l shows a movable contact carrier according to the invention for a low-voltage circuit breaker with a spacer for the contact lever in a perspective view.
  • FIG. 2 shows a movable contact carrier according to the invention for a low-voltage circuit breaker with a spacer for the contact lever in a top view.
  • FIG. 4 shows the spacer for the contact lever in a top view.
  • FIG. 5 shows the spacer for the contact lever in a sectional view along the line A-B in FIG.
  • FIGS. 1 and 2 show a movable contact carrier 1 according to the invention for a low-voltage circuit breaker, with a spacer 2 on the plastic body 3 Thighs 4; 5 arranged journal 6; 7, and the holder 8 for the contact joint pin, not shown, is attached, in perspective / view and in plan view.
  • the spacer 2 according to the invention consists of two side parts 9; 10, which are connected to one another by a web 11 and extend from this web 11 at right angles and parallel in the direction of the contact lever 12.
  • spacers 13 arranged on the web 11, which are parallel to the side parts 9; 10 and parallel to each other from the web 11 in the same direction as the side parts 9; 10 extend such that they are located between the contact levers 12, keep them at a defined distance from one another and at the same time run with low friction. For this reason, the spacers 13 have each other and from the side parts 9; 10 a distance 15 which is slightly larger than the thickness of the contact levers 12 guided between them, so that they can move between the spacers 13 without greater friction.
  • the side parts 9, -10 and the spacers 3 have mutually aligned bores 14 for the passage of the contact joint bolt (not shown) for the contact lever 12.
  • FIG. 3 shows the spacer 2 according to the invention for the contact lever 12 in a front view and FIG. 4 in a top view.
  • the two side parts 9, -10, of the spacer 2 are connected to one another by a web 11 and extend from this web 11 at right angles and parallel in the direction of the contact lever 12 omitted in these figures for a better overview.
  • spacers 13 are arranged on the web, which are parallel to the side parts 9; 10 and parallel to each other from the web 11 in the same direction as the side parts 9; 10 extend. They are in the installed state of the spacer 2 between the contact levers 12 in order to keep them at a defined distance from one another and at the same time to guide them with little friction. For this reason, the spacers 13 have each other and from the side parts 9; 10 a distance 15 which is slightly larger than the thickness of the contact levers 12 guided between them, so that they can move between the spacers 13 without greater friction.
  • the side parts 9; 10 and the spacers 13 have mutually aligned bores 14 for passing the contact joint bolt (not shown) for the contact lever 12. In the thin spacers 13, these holes are not marked in these two figures.
  • the web 11 of the spacer 2 has a trough-shaped cross section for reasons of stability. Of course, other cross-sectional shapes are also possible, such as an elongated U.
  • the spacer 13 is designed as a rounded rectangle with an attachment for connection to the web 11 and has a bore 14 for the passage of the contact joint pin 16 indicated in FIG. 1 for the contact lever 12 on.
  • other shapes are possible for the spacers, such as polygons, circles or ellipses.
  • the advantages of the contact carrier according to the invention with the spacer are that the spacers are very thin can be formed and require little space that the spacer of the contact joint pin is supported, which prevents deflection or tearing of the bore of the plastic contact carrier and that a uniform contact carrier with different spacers enables a different number of contact levers in one size.

Landscapes

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

Abstract

The invention relates to the achievement of a defined separation between the moving contact levers (12) in the displaceable contact support (1) of a low-voltage power switch, by means of a separator (2) produced as an aluminium die-cast piece, comprising two side pieces (9; 10), connected to each other by means of a web (11), both extending parallel from said web (11), at right angles thereto, in the direction of the contact levers (12). Distance pieces (13) are arranged on the web (11), between said side pieces (9, 10), extending together from the web (11), parallel to the side pieces and in the same direction as the side pieces (9, 10). Side pieces (9, 10) and distance pieces (13) comprise aligned drillings (14) for introduction of the contact joint pin for the contact levers (12).

Description

Beschreibungdescription
Bewegbarer Kontaktträger für einen Niederspannungs- eistungsschalter mit einem Abstandhalter für die KontakthebelMovable contact carrier for a low-voltage circuit breaker with a spacer for the contact lever
Die Erfindung betrifft die Realisierung eines definierten Abstandes der beweglich gelagerten Kontakthebel im Kontaktträger eines Niederspannungs-Leistungsschalters mittels eines Abstandhalters.The invention relates to the realization of a defined distance of the movably mounted contact levers in the contact carrier of a low-voltage circuit breaker by means of a spacer.
Bei den Vielfachkontakten moderner eistungsSchalter wird es für erforderlich gehalten, die Kontakthebel auf Abstand voneinander zu halten. Das kann beispielsweise durch an den Kontakthebeln selbst angeordnete Abstandhalter geschehen, an denen der benachbarte Kontakthebel anliegt. Es gibt auch zahlreiche bekannte Konstruktionen, die eine Art Kamm oder dergleichen vorsehen, der mit dünnen Rippen oder Flächen zwischen die Kontakthebel ragt und diese gegenseitig auf Abstand hält. Ein derartiger Abstandhalter kann sowohl leitend sein oder nicht leitend, er kann auch aus einem völlig anderen Werkstoff bestehen, als die Kontakte, so kann zum Beispiel ohne Probleme ein Aluminiumkamm zwischen Kontakthebeln aus Kupfer angeordnet werden. Wichtig ist, daß die Kontakthebel nicht flächig aneinander anliegen. Die hohe Leistungsfähigkeit der Vielfachkontakte kommt nämlich nur dann zum Tragen, wenn sich jeder Kontakt relativ unabhängig vom benachbarten bewegen kann. Denn nur dann sind seine Federkräfte auf den individuellen Hebel wirksam. Sobald eine Reibung mit dem Nachbarhebel auftritt, zum Beispiel durch Stromkräfte oder anderes, kann ein Kontaktkraftverlust auftreten, was zu einer örtlichen Erwärmung führen kann und somit zu einem Verlust an Stromtragfähigkeit. In der US-PS 4,764,650 ist ein aus einem isolierenden Material hergestellter Kontaktträger gezeigt, der eine Vielzahl von Aussparungen zur Aufnahme der Kontakthebel aufweist. Die zwischen den Aussparungen befindlichen Zwischenwände sind, bedingt durch die mechanische Festigkeit des isolierenden Materials verhältnismäßig dick. Das bedeutet, daß der für die Kontakthebel zur Verfügung stehende Platz entsprechend reduziert ist.With the multiple contacts of modern circuit breakers, it is considered necessary to keep the contact levers at a distance from one another. This can be done, for example, by spacers arranged on the contact levers themselves, against which the adjacent contact lever rests. There are also numerous known constructions which provide a type of comb or the like which projects with thin ribs or surfaces between the contact levers and keeps them at a distance from one another. Such a spacer can be either conductive or non-conductive, it can also consist of a completely different material than the contacts, for example an aluminum comb can be arranged between contact levers made of copper without problems. It is important that the contact levers do not lie flat against one another. The high performance of the multiple contacts only comes into play if each contact can move relatively independently of the neighboring one. Because only then will its spring forces be effective on the individual lever. As soon as there is friction with the neighboring lever, for example due to current forces or something else, a loss of contact force can occur, which can lead to local heating and thus to a loss of current carrying capacity. US Pat. No. 4,764,650 shows a contact carrier made of an insulating material which has a multiplicity of cutouts for receiving the contact levers. The intermediate walls located between the cutouts are relatively thick due to the mechanical strength of the insulating material. This means that the space available for the contact levers is reduced accordingly.
Bei bekannten Niederspannungs-Leistungsschaltern, beispielsweise der Baureihe 3WN6 der Firma Siemens wird der Abstand der Kontakthebel durch ein Kunststoffteil aus einem Thermoplast realisiert.In known low-voltage circuit breakers, for example the 3WN6 series from Siemens, the distance between the contact levers is realized by a plastic part made of a thermoplastic.
Es ist auch bekannt, die Kontakthebel durch Einprägen seitlicher Butzen auf Abstand voneinander zu halten. Die Nachteile der bekannten Lösungen bestehen darin, dass bei Kunststoffen, auch bei Duroplasten, im Bereich von sehr heißen elektrischen Lichtbögen, wie sie beim Schalten hoher Leistungen an den Kontakthebeln von Niederspannungs- Leistungsschaltern auftreten, thermische Probleme, Verschmutzungen oder Kriechwege auftreten können, und dass bei den genannten seitlichen Butzen an den Kontakthebeln durch die geringe Auflagefläche eine ausreichende Führung der Kontakthebel nicht möglich ist.It is also known to keep the contact levers at a distance from one another by embossing lateral slugs. The disadvantages of the known solutions are that in the case of plastics, including thermosets, in the area of very hot electrical arcs, such as occur when switching high power on the contact levers of low-voltage circuit breakers, thermal problems, contamination or leakage paths can occur, and that In the case of the lateral slugs on the contact levers mentioned, adequate guidance of the contact levers is not possible due to the small contact surface.
Die Aufgabe der Erfindung besteht deshalb darin, einen Kontaktträger mit einer Vorrichtung zu schaffen, die einen definierten Abstand der Kontakthebel gewährleistet, die keine thermischen Probleme verursacht und die Reibungskräfte zwischen den Kontakthebeln gering hält. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der bewegbare Kontaktträger für einen Niederspannungs- Leistungsschalter einen Abstandhalter für die Kontakthebel aufweist, der aus zwei Seitenteilen besteht, die durch einen Steg miteinander verbunden sind und sich von diesem Steg rechtwinklig und parallel in die Richtung der Kontakthebel erstrecken, dass zwischen diesen Seitenteilen am Steg Distanzstücke angeordnet sind, die sich parallel zu den Seitenteilen und zueinander vom Steg in die gleiche Richtung wie die Seitenteile erstrecken, und dass sowohl die Endteile, als auch die Distanzstücke zueinander fluchtende Bohrungen zum Hindurchführen des Kontaktgelenkbolzens für die Kontakthebel aufweisen.The object of the invention is therefore to provide a contact carrier with a device which ensures a defined distance between the contact levers, which causes no thermal problems and keeps the frictional forces between the contact levers low. This object is achieved in that the movable contact carrier for a low-voltage circuit breaker has a spacer for the contact lever, which consists of two side parts which are connected by a web and extend from this web at right angles and parallel in the direction of the contact lever that spacers are arranged between these side parts on the web, which extend parallel to the side parts and to one another from the web in the same direction as the side parts, and that both the end parts and the spacers are mutually aligned bores for passing the contact joint bolt for the contact lever exhibit.
Die Distanzstücke weisen untereinander und von denThe spacers face each other and from the
Seitenteilen einen Abstand auf, der geringfügig größer ist, als die Dicke der dazwischen geführten Kontakthebel, damit sich diese ohne größere Reibung zwischen den Distanzstücken bewegen können.Side parts a distance that is slightly larger than the thickness of the contact levers guided between them, so that they can move between the spacers without greater friction.
Der zwischen den Endteilen vorgesehene Steg ist zweckmäßig profiliert. Er kann vorteilhaft einen wannenförmigen Querschnitt aufweisen oder beispielsweise einen Querschnitt in Form eines gestreckten U.The web provided between the end parts is appropriately profiled. It can advantageously have a trough-shaped cross section or, for example, a cross section in the form of an elongated U.
Die Distanzstücke weisen in der Seitenansicht vorteilhaft im wesentlichen die gleiche Form auf, wie die Seitenteile. Sie können aber davon abweichend auch kreisförmig, ellipsenförmig oder in Form eines beliebigen Polygons ausgebildet sein.In the side view, the spacers advantageously have essentially the same shape as the side parts. However, in deviation from this, they can also be circular, elliptical or in the form of any polygon.
Zweckmäßig ist der Abstandhalter einstückig als Aluminium- Druckgußteil hergestellt. Das bedeutet, daß die Distanzstücke in Form Λ7On sehr dünnen Scheiben ausgeführt werden können, weshalb der Platzbedarf hierfür gering ist.The spacer is expediently produced in one piece as an aluminum die-cast part. That means the spacers in the form of sehr7On very thin panes, which is why the space required for this is small.
Der Abstandhalter kann entweder bei der Herstellung in den Kontaktträger aus Duroplast eingegossen werden, oder er wird später eingelegt und auf geeignete Weise am Kontaktträger befestigt.The spacer can either be cast into the thermoset contact carrier during manufacture, or it can be inserted later and attached to the contact carrier in a suitable manner.
Die Erfindung soll nachfolgend zum besseren Verständnis anhand eines bevorzugten, den Schutzumfang nicht einschränkenden Ausführungsbeispiels näher erläutert werden.For a better understanding, the invention will be explained in more detail below with the aid of a preferred exemplary embodiment which does not restrict the scope of protection.
Die Fig.l zeigt einen erfindungsgemäßen bewegbaren Kontaktträger für einen Niederspannungs-Leistungsschalter mit einem Abstandhalter für die Kontakthebel in perspektivischer Ansicht.Fig.l shows a movable contact carrier according to the invention for a low-voltage circuit breaker with a spacer for the contact lever in a perspective view.
Die Fig.2 zeigt einen erfindungsgemäßen bewegbaren Kontaktträger für einen Niederspannungs-Leistungsschalter mit einem Abstandhalter für die Kontakthebel in der Draufsicht.2 shows a movable contact carrier according to the invention for a low-voltage circuit breaker with a spacer for the contact lever in a top view.
Die Fig.3 zeigt den Abstandhalter für die Kontakthebel in der Vorderansicht .3 shows the spacer for the contact lever in the front view.
Die Fig.4 zeigt den Abstandhalter für die Kontakthebel in der Draufsicht.4 shows the spacer for the contact lever in a top view.
Die Fig.5 zeigt den Abstandhalter für die Kontakthebel in einer Schnittdarstellung entlang der Linie A-B in der Fig.3.5 shows the spacer for the contact lever in a sectional view along the line A-B in FIG.
Die Fig.l und 2 zeigen einen erfindungsgemäßen bewegbaren Kontaktträger 1 für einen Niederspannungs-Leistungsschalter, mit einem Abstandhalter 2, der am Kunststoffkörper 3, mit an Schenkeln 4; 5 angeordneten Lagerzapfen 6; 7, und der Halterung 8 für den nicht dargestellten Kontaktgelenkbolzen befestigt ist, in perspektivischer /Ansicht und in der Draufsicht. Der erfindungsgemäße Abstandhalter 2 besteht aus zwei Seitenteilen 9; 10, die durch einen Steg 11 miteinander verbunden sind und sich von diesem Steg 11 rechtwinklig und parallel in die Richtung der Kontakthebel 12 erstrecken. Zwischen diesen Seitenteilen 9; 10 sind am Steg 11 Distanzstücke 13 angeordnet, die sich parallel zu den Seitenteilen 9; 10 und parallel zueinander vom Steg 11 in die gleiche Richtung wie die Seitenteile 9; 10 erstrecken, derart, daß sie sich zwischen den Kontakthebeln 12 befinden, diese auf einem definierten Abstand voneinander halten und gleichzeitig reibungsarm führen. Aus diesem Grund weisen die Distanzstücke 13 untereinander und von den Seitenteilen 9; 10 einen Abstand 15 auf, der geringfügig größer ist, als die Dicke der dazwischen geführten Kontakthebel 12, damit sich diese ohne größere Reibung zwischen den Distanzstücken 13 bewegen können.1 and 2 show a movable contact carrier 1 according to the invention for a low-voltage circuit breaker, with a spacer 2 on the plastic body 3 Thighs 4; 5 arranged journal 6; 7, and the holder 8 for the contact joint pin, not shown, is attached, in perspective / view and in plan view. The spacer 2 according to the invention consists of two side parts 9; 10, which are connected to one another by a web 11 and extend from this web 11 at right angles and parallel in the direction of the contact lever 12. Between these side parts 9; 10 are spacers 13 arranged on the web 11, which are parallel to the side parts 9; 10 and parallel to each other from the web 11 in the same direction as the side parts 9; 10 extend such that they are located between the contact levers 12, keep them at a defined distance from one another and at the same time run with low friction. For this reason, the spacers 13 have each other and from the side parts 9; 10 a distance 15 which is slightly larger than the thickness of the contact levers 12 guided between them, so that they can move between the spacers 13 without greater friction.
Die Seitenteile 9,-10 und die Distanzstückel3 weisen zueinander fluchtende Bohrungen 14 zum Hindurchführen des nicht dargestellten Kontaktgelenkbolzens für die Kontakthebel 12 auf.The side parts 9, -10 and the spacers 3 have mutually aligned bores 14 for the passage of the contact joint bolt (not shown) for the contact lever 12.
Die Fig.3 zeigt den erfindungsgemäßen Abstandhalter 2 für die Kontakthebel 12 in der Vorderansicht und die Fig.4 in der Draufsicht. Die zwei Seitenteile 9,-10, des Abstandhalters 2 sind durch einen Steg 11 miteinander verbunden und erstrecken sich, von diesem Steg 11 rechtwinklig und parallel in die Richtung der zur besseren Übersicht in diesen Figuren weggelassenen Kontakthebel 12. Zwischen diesen Seitenteilen 9,-10 sind am Steg 11 Distanzstücke 13 angeordnet, die sich parallel zu den Seitenteilen 9; 10 und parallel zueinander vom Steg 11 in die gleiche Richtung wie die Seitenteile 9; 10 erstrecken. Sie befinden sich im eingebauten Zustand des Abstandhalters 2 zwischen den Kontakthebeln 12, um diese auf einem definierten Abstand voneinander zu halten und gleichzeitig reibungsarm zu führen. Aus diesem Grund weisen die Distanzstücke 13 untereinander und von den Seitenteilen 9; 10 einen Abstand 15 auf, der geringfügig größer ist, als die Dicke der dazwischen geführten Kontakthebel 12, damit sich diese ohne größere Reibung zwischen den Distanzstücken 13 bewegen können.3 shows the spacer 2 according to the invention for the contact lever 12 in a front view and FIG. 4 in a top view. The two side parts 9, -10, of the spacer 2 are connected to one another by a web 11 and extend from this web 11 at right angles and parallel in the direction of the contact lever 12 omitted in these figures for a better overview. Between these side parts 9, -10 11 spacers 13 are arranged on the web, which are parallel to the side parts 9; 10 and parallel to each other from the web 11 in the same direction as the side parts 9; 10 extend. They are in the installed state of the spacer 2 between the contact levers 12 in order to keep them at a defined distance from one another and at the same time to guide them with little friction. For this reason, the spacers 13 have each other and from the side parts 9; 10 a distance 15 which is slightly larger than the thickness of the contact levers 12 guided between them, so that they can move between the spacers 13 without greater friction.
Die Seitenteile 9; 10 und die Distanzstücke 13 weisen zueinander fluchtende Bohrungen 14 zum Hindurchführen des nicht dargestellten Kontaktgelenkbolzens für die Kontakthebel 12 auf. In den dünnen Distanzstücken 13 sind diese Bohrungen in diesen beiden Figuren nicht markiert.The side parts 9; 10 and the spacers 13 have mutually aligned bores 14 for passing the contact joint bolt (not shown) for the contact lever 12. In the thin spacers 13, these holes are not marked in these two figures.
Die Fig.5 zeigt den erfindungsgemäßen Abstandhalter für die Kontakthebel 12 in einer Schnittdarstellung entlang der Linie5 shows the spacer according to the invention for the contact lever 12 in a sectional view along the line
A-B in der Fig.3. Der Steg 11 des Abstandhalters 2 weist aus Stabilitätsgründen einen wannenförmigen Querschnitt auf. Es sind natürlich auch andere Querschnittsformen möglich, wie beispielsweise ein gestrecktes U. Das Distanzstück 13 ist als angerundetes Rechteck mit einem Ansatz zur Verbindung mit dem Steg 11 ausgeführt und weist eine Bohrung 14 zum Hindurchführen des in der Figur 1 angedeuteten Kontaktgelenkbolzens 16 für die Kontakthebel 12 auf. Auch hier sind für die Distanzstücke andere Formen, wie Polygone Kreis oder Ellipse möglich.A-B in Fig.3. The web 11 of the spacer 2 has a trough-shaped cross section for reasons of stability. Of course, other cross-sectional shapes are also possible, such as an elongated U. The spacer 13 is designed as a rounded rectangle with an attachment for connection to the web 11 and has a bore 14 for the passage of the contact joint pin 16 indicated in FIG. 1 for the contact lever 12 on. Here, too, other shapes are possible for the spacers, such as polygons, circles or ellipses.
Die Vorteile des erfindungsgemäßen Kontaktträgers mit dem Abstandhalter bestehen darin, daß die Distanzstücke sehr dünn ausgebildet werden können und wenig Platz benötigen, daß durch die Distanzstücke der Kontaktgelenkbolzen abgestützt wird, wodurch eine Durchbiegung beziehungsweise ein Ausreißen der Bohrung des Kunststoffkontaktträgers vermieden wird und daß ein einheitlicher Kontaktträger mit unterschiedlichen Abstandhaltern eine unterschiedliche Anzahl von Kontakthebeln in einer Baugröße ermöglicht. The advantages of the contact carrier according to the invention with the spacer are that the spacers are very thin can be formed and require little space that the spacer of the contact joint pin is supported, which prevents deflection or tearing of the bore of the plastic contact carrier and that a uniform contact carrier with different spacers enables a different number of contact levers in one size.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Bewegbarer Kontaktträger1 movable contact carrier
2 Abstandhalter2 spacers
3 Kunststoffkörper3 plastic bodies
4 Schenkel4 legs
5 Schenkel5 legs
6 Lagerzapfen6 journals
7 Lagerzapfen7 journals
8 Halterung8 bracket
9 Seitenteil9 side panel
10 Seitenteil10 side part
11 Steg11 bridge
12 Kontakthebe112 contact lift 1
13 Distanzstück13 spacer
14 Bohrung 5 Abstand 6 Kontaktgelenkbolzen 14 Bore 5 Distance 6 Contact hinge pin

Claims

Patentansprüche claims
1. Bewegbarer Kontaktträger für einen Niederspannungs- Leistungsschalter mit einem Abstandhalter für die Kontakthebel, d a d u r c h g e k e n n z e i c h n e t , dass der bewegbare Kontaktträger (1) für einen Niederspannungs-Leistungsschalter einen Abstandhalter (2) für die Kontakthebel (12) aufweist, der aus zwei Seitenteilen (9;10) besteht, die durch einen Steg (11) miteinander verbunden sind und sich von diesem Steg rechtwinklig und parallel beide in die Richtung der Kontakthebel (12) erstrecken, daß zwischen diesen Seitenteilen (9; 10) am Steg (11) Distanzstücke (13) angeordnet sind, die sich parallel zu den Seitenteilen (9; 10) und zueinander vom Steg (11) in die gleiche Richtung wie die Seitenteile (9; 10) erstrecken und daß sowohl die Seitenteile, (9; 10) als auch die Distanzstücke (13) zueinander fluchtende Bohrungen (14) zum Hindurchführen des Kontaktgelenkbolzens (16) für die Kontakthebel (12) aufweisen.1. Movable contact carrier for a low-voltage circuit breaker with a spacer for the contact lever, characterized in that the movable contact carrier (1) for a low-voltage circuit breaker has a spacer (2) for the contact lever (12), which consists of two side parts (9; 10), which are connected to one another by a web (11) and extend from this web at right angles and parallel both in the direction of the contact lever (12), that between these side parts (9; 10) on the web (11) spacers (13 ) are arranged which extend parallel to the side parts (9; 10) and to each other from the web (11) in the same direction as the side parts (9; 10) and that both the side parts (9; 10) and the spacers (13) have mutually aligned bores (14) for passing the contact joint bolt (16) for the contact lever (12).
2. Bewegbarer Kontaktträger nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass die Distanzstücke (13) untereinander und von den Seitenteilen (9; 10) einen Abstand aufweisen, der geringfügig größer ist, als die Dicke der dazwischen geführten Kontakthebel (12) .2. Movable contact carrier according to claim 1, so that the spacers (13) are at a distance from one another and from the side parts (9; 10) which is slightly larger than the thickness of the contact levers (12) guided between them.
3. Bewegbarer Kontaktträger nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass der zwischen den Seitenteilen (9; 10) vorgesehene Steg (11) profiliert ist. 3. Movable contact carrier according to claim 1, characterized in that the web (11) provided between the side parts (9; 10) is profiled.
4. Bewegbarer Kontaktträger nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass der zwischen den Seitenteilen (9; 10) vorgesehene Steg (11) einen wannenförmigen Querschnitt aufweist.4. Movable contact carrier according to claim 1, so that the web (11) provided between the side parts (9; 10) has a trough-shaped cross section.
5. Bewegbarer Kontaktträger nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass der zwischen den Seitenteilen (9; 10)vorgesehene Steg (11) einen Querschnitt in Form eines gestreckten U aufweist5. Movable contact carrier according to claim 1, so that the web (11) provided between the side parts (9; 10) has a cross section in the form of an elongated U
6. Bewegbarer Kontaktträger nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass die Distanzstücke (13) in der Seitenansicht im wesentlichen die gleiche Form aufweisen, wie die Seitenteile (9,-10).6. Movable contact carrier according to claim 1, so that the spacers (13) have essentially the same shape in side view as the side parts (9, -10).
7. Bewegbarer Kontaktträger nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass die Distanzstücke (13) kreisförmig ausgebildet sind.7. Movable contact carrier according to claim 1, so that the spacers (13) are circular.
8. Bewegbarer Kontaktträger nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass die Distanzstücke (13) ellipsenförmig ausgebildet sind.8. Movable contact carrier according to claim 1, so that the spacers (13) are elliptical in shape.
9. Bewegbarer Kontaktträger nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass die Distanzstücke (13) in Form eines beliebigen Polygons ausgebildet sind.9. Movable contact carrier according to claim 1, so that the spacers (13) are designed in the form of any polygon.
10. Bewegbarer Kontaktträger nach Anspruch 1, d a d u r c h g e k e n n z e i c hn e t , dass der Abstandhalter (2) einstückig als Aluminium- Druckgussteil hergestellt ist. 10. Movable contact carrier according to claim 1, dadurchgekennzeic hn et that the spacer (2) is made in one piece as an aluminum die-cast part.
11. Bewegbarer Kontaktträger nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass der Abstandhalter (2) bei der Herstellung in den • 5 bewegbaren Kontaktträger (1) aus Duroplast eingegossen ist,11. Movable contact carrier according to claim 1, characterized in that the spacer (2) is cast in the • 5 movable contact carrier (1) made of thermosetting plastic,
12. Bewegbarer Kontaktträger nach Anspruch 1, d a d u r c h g e k e n n z e i c h. n e t , dass der Abstandhalter (2) am bewegbaren Kontaktträger (2) 10 lösbar befestigt ist. 12. Movable contact carrier according to claim 1, d a d u r c h g e k e n n z e i c h. n e t that the spacer (2) on the movable contact carrier (2) 10 is releasably attached.
PCT/DE2001/002679 2000-09-27 2001-07-18 Displaceable contact support for a low-voltage power switch with a separator for the contact levers WO2002027740A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10048660A DE10048660A1 (en) 2000-09-27 2000-09-27 Movable contact carrier for a low-voltage circuit breaker with a spacer for the contact lever
DE10048660.6 2000-09-27

Publications (1)

Publication Number Publication Date
WO2002027740A1 true WO2002027740A1 (en) 2002-04-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110825A2 (en) * 2008-04-15 2009-10-21 General Electric Company Contact assembly of circuit breaker
CN102315046A (en) * 2010-06-30 2012-01-11 北京人民电器厂有限公司 Contact system of circuit breaker

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004009873A1 (en) * 2004-02-26 2005-09-15 Siemens Ag Switching contact arrangement
DE102004019251A1 (en) * 2004-04-16 2005-11-03 Magcode Ag Device for the electrical connection of a power supply device with a current collector device
DE102004020654A1 (en) 2004-04-22 2005-11-10 Siemens Ag Switching contact arrangement
DE102004048836A1 (en) * 2004-09-30 2006-04-06 Siemens Ag Switching contact arrangement for an electrical switch and electrical switch with a switching contact arrangement
DE102005009484A1 (en) * 2005-02-23 2006-09-14 Siemens Ag Contact lever assembly for a low voltage circuit breaker
CN111769016B (en) * 2020-06-06 2022-07-05 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） Multi-contact finger moving contact and contact system of molded case circuit breaker

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Publication number Priority date Publication date Assignee Title
DE29503327U1 (en) * 1995-02-16 1995-04-13 Siemens Ag Contact lever assembly for a low voltage circuit breaker
EP0955658A2 (en) * 1998-05-07 1999-11-10 Eaton Corporation Electrical switching apparatus with improved contact arm carrier arrangement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29503327U1 (en) * 1995-02-16 1995-04-13 Siemens Ag Contact lever assembly for a low voltage circuit breaker
EP0955658A2 (en) * 1998-05-07 1999-11-10 Eaton Corporation Electrical switching apparatus with improved contact arm carrier arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2110825A2 (en) * 2008-04-15 2009-10-21 General Electric Company Contact assembly of circuit breaker
JP2009259818A (en) * 2008-04-15 2009-11-05 General Electric Co <Ge> Contact assembly of circuit breaker
EP2110825A3 (en) * 2008-04-15 2011-03-02 General Electric Company Contact assembly of circuit breaker
CN102315046A (en) * 2010-06-30 2012-01-11 北京人民电器厂有限公司 Contact system of circuit breaker

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