EP0013963B1 - L.t. fuse and disconnector assembly - Google Patents

L.t. fuse and disconnector assembly Download PDF

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Publication number
EP0013963B1
EP0013963B1 EP19800100283 EP80100283A EP0013963B1 EP 0013963 B1 EP0013963 B1 EP 0013963B1 EP 19800100283 EP19800100283 EP 19800100283 EP 80100283 A EP80100283 A EP 80100283A EP 0013963 B1 EP0013963 B1 EP 0013963B1
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EP
European Patent Office
Prior art keywords
side walls
switching
switching device
fuse
flap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19800100283
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German (de)
French (fr)
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EP0013963A1 (en
Inventor
Fritz Hollmann
Helmut Hörchens
Werner Klingen
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Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf GmbH
Original Assignee
Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf GmbH
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Application filed by Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf GmbH filed Critical Fritz Driescher KG Spezialfabrik fur Elektrizitatswerksbedarf GmbH
Publication of EP0013963A1 publication Critical patent/EP0013963A1/en
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Publication of EP0013963B1 publication Critical patent/EP0013963B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/12Adaptation for built-in fuse
    • H01H31/122Fuses mounted on, or constituting the movable contact parts of, the switch

Definitions

  • the invention relates to an NH fuse switching device, consisting essentially of contact pairs for receiving NH fuse links, which can be pivoted in at least one front, from the switched-on position by about 150-180 ° into a reversed position and, in the switched-off position, covering the access opening to the contact pairs Switch flap can be fixed.
  • a fuse switching device with the aforementioned features is known from DE-PS 1040 646. According to the exemplary embodiments described there, it is provided that the reverse pivoting movement of the switching flap is achieved by appropriate guidance either in two pairs of slots or by means of two pairs of levers.
  • the present invention is therefore based on the object of providing an NH switching device which can be produced in a simple manner and which has greater stability than the known switching device without the space requirement of the arrangement increasing.
  • the lever guide in combination with a slot or groove guide achieves a significant improvement in the switch flap suspension, in particular transverse forces which are exerted on the switch flap are absorbed by the slot or groove guide. Bends in the side levers and the resulting inaccurate guidance are therefore excluded.
  • Another advantage that can be achieved with the invention is a simplified manufacture of the switching device by eliminating a pair of levers.
  • the invention can be advantageous, in particular in the case of a fuse switching device in the form of a three-pole, single-pole switchable NH fuse strip with contact pairs lying one above the other.
  • a fuse switching device in the form of a three-pole, single-pole switchable NH fuse strip with contact pairs lying one above the other.
  • the previously known switchable fuse strips with contact pairs lying one above the other have the disadvantage that the switching flap below an adjacent switching flap which is in the switched-off position is relatively difficult to access, e.g. then when the safety bar is installed at a low height above the floor and must be operated from above, so that the switching flaps of the known safety bars have a swivel angle of 90 ° and project transversely from the bar in the off position. This disadvantage does not occur in the switching device according to the invention.
  • the grooves or slots in the side walls have locking points, preferably in the form of indentations, which enable each switching flap to assume at least one defined intermediate position between the on and off position.
  • This measure makes the connection points of the receptacle contacts easily accessible from the operating side for the purpose of establishing the connection to the busbars.
  • such locking points can also be formed at the end of the grooves, so that the switching flaps are fixed in their end position (switch-off position) without the need for special springs.
  • the side walls are drawn forward so far that each switching flap lies completely between the side walls in the switched-on position. This prevents protruding parts of the switching flap from protruding into the operating aisle, which is particularly advantageous in walk-in network stations with space-saving operating aisles.
  • the adjacent receptacle contacts of different phases of a fuse strip can be relatively close to one another due to the guidance of the switching flaps according to the invention, it is further provided that the adjacent receptacle contacts associated with the different phases are each covered by a common protective cover, which is produced as a one-piece molded part and is fixed in the side walls of the fuse strip .
  • a further simplification is that parts of the protective hood provided for two adjacent contacts are used for the top and bottom receiving contact of the fuse strip. This is possible because the protective hood produced as a one-piece molded part can be dismantled at a predetermined location, preferably along a predetermined breaking line, so that a part for covering the uppermost receptacle contact and a part for covering the lowest receptacle contact of the strip is to be used. As a result of this measure, only one casting mold or injection mold is advantageously required for producing the protective hoods for individually standing and adjacent receiving contacts.
  • the NH fuse block consists essentially of two side walls 1, 2 screwed together with spacers 3, 3 ', switching flaps 4, 4', 4 ", vertical ladders 5, 6, 7 and inclined contact pairs 8, 8 '.
  • the spacers 3 are provided at the ends with an internal thread into which the side walls 1, 2 penetrate screws.
  • the fuse receiving contacts 8 are connected to the rear side in the side walls 1, 2 sunk busbar connection conductors 11, while the contacts 8 'are connected to the risers 5, 6, 7.
  • the connection zone of the vertical ladder is shielded when a plurality of fuse strips are installed next to one another by a laterally inserted insulating piece 2 'to the adjacent strip.
  • the vertical ladders 5, 6 resting on the side walls each have a bore into which a projection 12 formed on the side walls 1, 2 protrudes and secures the vertical ladder against longitudinal displacement.
  • the webs 23, 24 also molded onto the side walls secure the vertical ladder 5, 6 against lateral displacement.
  • a further determination of all the ladder and all busbar connection conductors 11 is made by rigid connection to the fuse receiving contacts 8 and 8 ', which have laterally directed projections 13 which engage in recesses in the side walls 1, 2.
  • the fuse receiving contacts 8 and 8 ' which have laterally directed projections 13 which engage in recesses in the side walls 1, 2.
  • a spacer 14 consisting of leakage-proof insulating material, which absorbs any additional moments that may occur when tightening screw connections.
  • the switching flaps provided with molded-on grip webs 21 each have a cam 15 on each side, which is slidably guided in an associated groove (or slot) 16.
  • the switching flaps are also suspended on two lateral levers 17, which are mounted on the corresponding switching flap and the side walls 1, 2 at pivot points 18, 3 '.
  • the spacers 3 ' are selected as pivot points on the bar.
  • the lower side levers 17 have been shown broken off in FIG. 1.
  • An indentation 19 is formed in each of the grooves 16 as a locking point, into which the cams 15 of the switching flaps fit, so that an intermediate position of the switching flaps corresponding to the position of the switching flap 4 'shown in FIG. 2 is made possible.
  • the sequence of movements of the switching flaps when they are actuated can be seen from FIG. 2.
  • the flap 4 is in the switched-on position, the cams 15 guided in the groove 16 occupying a lower position.
  • the flaps are pivoted until they reach the intermediate position according to the position of the switching flap 4 'by moving the cams 15 into the bulge 19.
  • the cams 15 finally migrate to the upper end of the groove 16, which at the same time serves as a stop for the flap end position (see position of the flap 4 ").
  • the receptacle contacts 8, 8 ' are covered by protective hoods 20, 20', 20 ", in such a way that a common protective hood 20 is assigned to each of the adjacent receptacle contacts 8, 8 'associated with different phases, while the top and bottom receptacle contacts the Each strip receives a single protective hood 20 ', 20 ". How 2, the protective hoods 20 ', 20 "are disassembled parts of a protective hood 20.
  • fastening tabs 22 can be attached.
  • individual parts which have a complicated shape, in particular the side walls 1, 2, the switching flaps 4, 4 ', 4 "and the protective hoods 20, are produced as molded plastic parts.
  • a spring (not shown here) or other latching device can be attached, which locks the switching flap in the off position.

Description

Die Erfindung betrifft eine NH-Sicherungsschalteinrichtung, bestehend im wesentlichen aus Kontaktpaaren zur Aufnahme von NH-Sicherungseinsätzen, die an mindestens einer frontseitigen, aus der Einschaltstellung heraus um etwa 150-180° in eine Umkehrlage schwenkbaren und dabei in Ausschaltstellung die Zugangsöffnung zu den Kontaktpaaren abdeckenden Schaltklappe festlegbar sind.The invention relates to an NH fuse switching device, consisting essentially of contact pairs for receiving NH fuse links, which can be pivoted in at least one front, from the switched-on position by about 150-180 ° into a reversed position and, in the switched-off position, covering the access opening to the contact pairs Switch flap can be fixed.

Eine Sicherungsschalteinrichtung mit den vorgenannten Merkmalen ist aus der DE-PS 1040 646 bekannt. Nach den dort beschriebenen Ausführungsbeispielen ist vorgesehen, daß die Umkehrschwenkbewegung der Schaltklappe durch entsprechende Führung entweder in 'zwei Schlitzpaaren oder mittels zweier Hebelpaare erreicht wird.A fuse switching device with the aforementioned features is known from DE-PS 1040 646. According to the exemplary embodiments described there, it is provided that the reverse pivoting movement of the switching flap is achieved by appropriate guidance either in two pairs of slots or by means of two pairs of levers.

Während die Führung in zwei Schlitzpaaren eine wesentliche Erhöhung der Bautiefe der Schalteinrichtung bewirkt, bringt die Führung mittels zweier Hebelpaare eine geringere mechanische Stabilität der Schaltklappenaufhängig in Querrichtung mit sich, was bei unsachgemäßer Betätigung der Schaltklappe gelegentlich zu Verbiegungen der Hebel führte.While the guidance in two pairs of slots causes a substantial increase in the overall depth of the switching device, the guidance by means of two pairs of levers results in a lower mechanical stability of the switching flaps depending on the transverse direction, which occasionally caused the levers to bend when the switching flap was operated improperly.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine in einfacher Weise herzustellende NH-Schalteinrichtung zu schaffen, die gegenüber der bekannten Schalteinrichtung eine höhere Stabilität besitzt, ohne daß sich der Raumbedarf der Anordnung erhöht.The present invention is therefore based on the object of providing an NH switching device which can be produced in a simple manner and which has greater stability than the known switching device without the space requirement of the arrangement increasing.

Diese Aufgabe wird an einer Schalteinrichtung der eingangs genannten Art erfindungsgemäß gelöst durch die Kombination folgender Merkmale:

  • a) zwei mit Abstand gegeneinander verschraubte Seitenwände nehmen die Kontaktpaare und zugehörige Anschlußleiter zwischen sich auf;
  • b) die Seitenwände weisen gerade Nuten oder Schlitze auf, die leicht nach vorn geneigt schräg zur Frontebene verlaufen und in denen seitlich an der Schaltklappe hervorstehende Nocken verschiebbar geführt sind;
  • c) zwei seitlich an der Schaltklappe vorgesehene Hebel sind an den Seitenwänden in horizontal kurz vor den unteren Enden der Nuten bzw. Schlitze angebrachten Drehpunkten und an der Schaltklappe in Drehpunkten gelagert.
This object is achieved according to the invention on a switching device of the type mentioned at the outset by combining the following features:
  • a) two side walls screwed together at a distance accommodate the contact pairs and associated connecting conductors between them;
  • b) the side walls have straight grooves or slots which are inclined slightly forwardly at an angle to the front plane and in which cams protruding laterally on the switching flap are displaceably guided;
  • c) Two levers provided on the side of the switching flap are mounted on the side walls in pivot points mounted horizontally just before the lower ends of the grooves or slots and on the switching flap in pivot points.

Durch die Hebelführung in Kombination mit einer Schlitz- bzw. Nutenführung wird eine wesentliche Verbesserung der Schaltklappenaufhängung erzielt, wobei insbesondere Querkräfte, die auf die Schaltklappe ausgeübt werden, durch die Schlitz- bzw. Nutenführung aufgefangen werden. Verbiegungen der seitlichen Hebel und dadurch bedingte Führungsungenauigkeiten sind somit ausgeschlossen.The lever guide in combination with a slot or groove guide achieves a significant improvement in the switch flap suspension, in particular transverse forces which are exerted on the switch flap are absorbed by the slot or groove guide. Bends in the side levers and the resulting inaccurate guidance are therefore excluded.

Ein weiterer mit der Erfindung erzielbarer Vorteil besteht in einer vereinfachten Fertigung der Schalteinrichtung durch Wegfall eines Hebelpaares.Another advantage that can be achieved with the invention is a simplified manufacture of the switching device by eliminating a pair of levers.

Vorteilhaft läßt sich die Erfindung insbesondere bei einer Sicherungsschalteinrichtung in Form eine dreipoligen, einpolig schaltbaren NH-Sicherungsleiste mit übereinanderliegenden Kcrntaktpaaren und. zugehörigen Schaltklappen einsetzen, wobei die die Kontaktpaare und Anschlußleiter zwischen sich aufnehmenden Seitenwände den Grundkörper der Sicherungsleiste bilden und jede Schaltklappeüber eine kombinierte Hebel- und Nuten- bzw. Schlitzführung an den Seitenwänden angebracht ist.The invention can be advantageous, in particular in the case of a fuse switching device in the form of a three-pole, single-pole switchable NH fuse strip with contact pairs lying one above the other. use the associated switching flaps, the contact pairs and connecting conductors between the receiving side walls forming the main body of the fuse strip and each switching flap being attached to the side walls via a combined lever and groove or slot guide.

Mit der erfindungsgemäßen Führung der Schaltklappen kann eine verhältnismäßig kurze Baulänge der Sicherungsleiste erzielt werden, ohne die Zugänglichkeit der einzelnen Schaltklappen zu beeinträchtigen.With the guide of the switching flaps according to the invention, a relatively short overall length of the fuse strip can be achieved without impairing the accessibility of the individual switching flaps.

Die bisher bekanntgewordenen schaltbaren Sicherungsleisten mit übereinanderliegenden Kontaktpaaren besitzen den Nachteil, daß die Schaltklappe unterhalb einer benachbarten, in Ausschaltlage befindlichen Schaltklappe relativ schlecht zugänglich ist, z.B. dann, wenn die Sicherungsleiste in geringer Höhe über dem Boden installiert ist und von oben her bedient werden muß, so daß die Schaltklappen der bekannten Sicherungsleisten einen Schwenkwinkel um 90° aufweisen und in Ausschaltstellung quer von der Leiste abstehen. Dieser Nachteil tritt bei der erfindungsgemäßen Schalteinrichtung nicht auf.The previously known switchable fuse strips with contact pairs lying one above the other have the disadvantage that the switching flap below an adjacent switching flap which is in the switched-off position is relatively difficult to access, e.g. then when the safety bar is installed at a low height above the floor and must be operated from above, so that the switching flaps of the known safety bars have a swivel angle of 90 ° and project transversely from the bar in the off position. This disadvantage does not occur in the switching device according to the invention.

In der weiteren Ausgestaltung der Erfindung ist vorgesehen, daß die Nuten bzw. Schlitze in den Seitenwänden Rastpunkte, vorzugsweise in Form von Einbuchtungen aufweisen, die jeder Schaltklappe das Einnehmen mindestens einer definierten Zwischenstellung zwischen Ein- und Ausschaltstellung ermöglichen. Durch diese Maßnahme sind die Anschlußstellen der Aufnahmekontakte zwecks Herstellen der Verbindung mit den Sammelschienen von der Bedienungsseite her bequem zugänglich. Außerdem können derartige Rastpunkte auch am Ende der Nuten eingeformt werden, so daß die Schaltklappen in ihrer Endstellung (Ausschaltstellung) festgelegt sind, ohne daß es dazu dann besonderer Federn bedarf.In a further embodiment of the invention it is provided that the grooves or slots in the side walls have locking points, preferably in the form of indentations, which enable each switching flap to assume at least one defined intermediate position between the on and off position. This measure makes the connection points of the receptacle contacts easily accessible from the operating side for the purpose of establishing the connection to the busbars. In addition, such locking points can also be formed at the end of the grooves, so that the switching flaps are fixed in their end position (switch-off position) without the need for special springs.

Weiterhin ist vorgesehen, daß die Seitenwände nach vorne hin soweit vorgezogen sind, daß jede Schaltklappe in Einschaltstellung vollständig zwischen den Seitenwänden liegt. Hierdurch wird das Hineinragen vorstehender Teile der Schaltklappe in den Bedienungsgang verhindert, was insbesondere in begehbaren Netzstationen mit raumsparenden Bedienungsgängen von Vorteil ist.Furthermore, it is provided that the side walls are drawn forward so far that each switching flap lies completely between the side walls in the switched-on position. This prevents protruding parts of the switching flap from protruding into the operating aisle, which is particularly advantageous in walk-in network stations with space-saving operating aisles.

In Weiterbildung der Erfindung ist vorgesehen, daß die Seitenwände auf den Innenseiten Vertiefungen und Vorsprünge zur Aufnahme von Anschlußleitern, Sicherungsaufnahmekontakten und Schutzhauben besitzen und daß durch Gegeneinanderschrauben der Seitenwände die Lagefixierung der Teile bewirkt wird.In a further development of the invention it is provided that the side walls on the inner sides of depressions and projections to have connection leads, fuse receptacle contacts and protective hoods and that screwing the side walls together causes the position of the parts.

Da die benachbarten Aufnahmekontakte verschiedener Phasen einer Sicherungsleiste aufgrund der erfindungsgemäßen Führung der Schaltklappen relativ nahe beieinander liegen können, ist weiter vorgesehen, daß die unterschiedlichen Phasen zugehörigen benachbarten Aufnahmekontakte durch je eine gemeinsame, als einstückiges Formteil hergestellte, in den Seitenwänden der Sicherungsleiste festgelegte Schutzhaube abgedeckt sind.Since the adjacent receptacle contacts of different phases of a fuse strip can be relatively close to one another due to the guidance of the switching flaps according to the invention, it is further provided that the adjacent receptacle contacts associated with the different phases are each covered by a common protective cover, which is produced as a one-piece molded part and is fixed in the side walls of the fuse strip .

Eine weitere Vereinfachung besteht darin, daß für den obersten und untersten Aufnahmekontakt der Sicherungsleiste Teile der für zwei benachbarte Kontakte vorgesehenen Schutzhaube verwendet werden. Dies ist dadurch möglich, daß die als einstückiges Formteil hergestellte Schutzhaube an vorbestimmter Stelle derart zerlegbar, vorzugsweise entlang einer Sollbruchlinie durchzutrennen ist, daß ein Teil zur Abdeckung des obersten Aufnahmekontaktes und ein Teil zur Abdeckung des untersten Aufnahmekontaktes der Leiste zu verwenden ist. Durch diese Maßnahme wird zur Herstellung der Schutzhauben für einzeln stehende und benachbarte Aufnahmekontakte in vorteilhafter Weise nur eine Gieß- bzw. Spritzgießform benötigt.A further simplification is that parts of the protective hood provided for two adjacent contacts are used for the top and bottom receiving contact of the fuse strip. This is possible because the protective hood produced as a one-piece molded part can be dismantled at a predetermined location, preferably along a predetermined breaking line, so that a part for covering the uppermost receptacle contact and a part for covering the lowest receptacle contact of the strip is to be used. As a result of this measure, only one casting mold or injection mold is advantageously required for producing the protective hoods for individually standing and adjacent receiving contacts.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen und in der nachfolgenden Beschreibung eines in der Zeichnung dargestellten Ausführungsbeispieles einer NH-Sicherungsleiste enthalten.Further advantageous embodiments of the invention are contained in the dependent claims and in the following description of an exemplary embodiment of an NH fuse strip shown in the drawing.

Es zeigen:

  • Fig. 1 eine NH-Sicherungsleiste, in Vorderansicht; und
  • Fig. 2 die Leiste nach Fig. 1 mit teilweise veränderten Stellungen der Schaltklappen, im Schnitt nach Linie I-I in Fig. 1.
Show it:
  • Figure 1 is a NH fuse block, in front view. and
  • 1 with partially changed positions of the switching flaps, in section along line II in Fig. 1st

Gemäß den Fig. 1 und 2 besteht die NH-Sicherungsleiste im wesentlichen aus zwei unter Zwischenfügen von Distanzstücken 3, 3' gegeneinanderverschraubten Seitenwänden 1, 2, Schaltklappen 4, 4', 4", Steigeleitern 5, 6, 7 und schräggestellten Kontaktpaaren 8, 8'. Die Distanzstücke 3 sind an den Enden mit Innengewinde versehen, in die die Seitenwände 1, 2 durchdringende Schrauben eingreifen.1 and 2, the NH fuse block consists essentially of two side walls 1, 2 screwed together with spacers 3, 3 ', switching flaps 4, 4', 4 ", vertical ladders 5, 6, 7 and inclined contact pairs 8, 8 '. The spacers 3 are provided at the ends with an internal thread into which the side walls 1, 2 penetrate screws.

In Fig. 2 ist die Lage der an den Schaltklappen in angeformten Haltevorrichtungen 10 leicht lösbar eingehängten NH-Sicherungen 9 gestrichelt eingezeichnet.2, the position of the NH fuses 9, which are easily detachably attached to the switching flaps in molded-on holding devices 10, is shown in dashed lines.

Die Sicherungsaufnahmekontakte 8 sind mit rückwärtig in den Seitenwänden 1, 2 versenkt angeordneten Sammelschienenanschlußleitern 11 verbunden, während die Kontakte 8' mit den Steigeleitern 5, 6, 7 verbunden sind. Die Anschlußzone der Steigeleiter ist bei Nebeneinandermontage mehrerer Sicherungsleisten durch ein seitlich eingeschobenes Isolierstück 2' zur jeweils benachbarten Leiste hin abgeschirmt. Die an den Seitenwänden anliegenden Steigeleiter 5, 6 besitzen je eine Bohrung, in die ein an den Seitenwänden 1, 2 angeformter Vorsprung 12 hineinragt und die Steigeleiter gegen Längsverschiebung sichert. Die ebenfalls an die Seitenwände angeformten Stege 23, 24 sichern die Steigeleiter 5, 6 gegen seitliche Verschiebung. Eine weitere Festlegung aller Steigeleiter sowie aller Sammelschienenanschlußleiter 11 erfolgt durch starre Verbindung mit den Sicherungsaufnahmekontakten 8 bzw. 8', die seitwärts gerichtete, in Ausnehmungen der Seitenwände 1, 2 formschlüssig eingreifende Vorsprünge 13 besitzen. Je nach Dicke der Seitenwände 1, 2 empfiehlt es sich, die darin vorgesehenen Ausnehmungen zur Halterung nicthbeweglicher Teile mit hier nicht eingezeichneten Stegen zu umgeben, um eine sichere Fest-legung der Teile zu erzielen.The fuse receiving contacts 8 are connected to the rear side in the side walls 1, 2 sunk busbar connection conductors 11, while the contacts 8 'are connected to the risers 5, 6, 7. The connection zone of the vertical ladder is shielded when a plurality of fuse strips are installed next to one another by a laterally inserted insulating piece 2 'to the adjacent strip. The vertical ladders 5, 6 resting on the side walls each have a bore into which a projection 12 formed on the side walls 1, 2 protrudes and secures the vertical ladder against longitudinal displacement. The webs 23, 24 also molded onto the side walls secure the vertical ladder 5, 6 against lateral displacement. A further determination of all the ladder and all busbar connection conductors 11 is made by rigid connection to the fuse receiving contacts 8 and 8 ', which have laterally directed projections 13 which engage in recesses in the side walls 1, 2. Depending on the thickness of the side walls 1, 2, it is advisable to surround the recesses provided therein for holding non-movable parts with webs (not shown here) in order to achieve a secure fixing of the parts.

Zwischen den außenliegenden Steigeleitern 5, 6 befindet sich in Höhe der Anschlußzone ein aus kriechstromfestem Isoliermaterial bestehender Abstandhalter 14, der beim Anziehen von Schraubverbindungen evtl. entstehende Beigemomente aufnimmt.Between the external vertical ladders 5, 6 is located at the level of the connection zone, a spacer 14 consisting of leakage-proof insulating material, which absorbs any additional moments that may occur when tightening screw connections.

Die mit angeformten Griffstegen 21 versehenen Schaltklappen besitzen an jeder Seite jeweils einen Nocken 15, der in einer zugehörigen Nut (bzw. Schlitz) 16 verschiebbar geführt ist. Die Aufhängung der Schaltklappen erfolgt außerdem an je zwei seitlichen Hebeln 17, die an der entsprechenden Schaltklappe und den Seitenwänden 1, 2 in Drehpunkten 18, 3' gelagert sind. Im Ausführungsbeispiel werden als Drehpunkte an der Leiste die Distanzstücke 3' gewählt. Zur Verdeutlichung der Nockenlage wurden in Fig. 1 die unteren seitlichen Hebel 17 abgebrochen eingezeichnet. In die Nuten 16 ist jeweils als Rastpunkt eine Einbuchtung 19 eingeformt, in die die Nocken 15 der Schaltklappen hineinpassen, so daß eine Zwischenstellung der Schaltklappen entsprechend der in Fig. 2 eingezeichneten Lage der Schaltklappe 4' ermöglicht wird.The switching flaps provided with molded-on grip webs 21 each have a cam 15 on each side, which is slidably guided in an associated groove (or slot) 16. The switching flaps are also suspended on two lateral levers 17, which are mounted on the corresponding switching flap and the side walls 1, 2 at pivot points 18, 3 '. In the exemplary embodiment, the spacers 3 'are selected as pivot points on the bar. To illustrate the cam position, the lower side levers 17 have been shown broken off in FIG. 1. An indentation 19 is formed in each of the grooves 16 as a locking point, into which the cams 15 of the switching flaps fit, so that an intermediate position of the switching flaps corresponding to the position of the switching flap 4 'shown in FIG. 2 is made possible.

Der Bewegungsablauf der Schaltklappen bei ihrer Betätigung ist aus Fig. 2 ersichtlich. Die Klappe 4 befindet sich in Einschaltlage, wobei die in der Nut 16 geführten Nocken 15 eine untere Lage einnehmen. Bei Ausschaltbewegung werden die Klappen verschwenkt, bis sie durch Verlagerung der Nocken 15 in die Ausbuchtung 19 die Zwischenstellung gemäß Lage der Schaltklappe 4' erreichen. Bei Weiterführen der Ausschaltbewegung wandern die Nocken 15 schließlich bis an das obere Ende der Nut 16, das gleichzeitig als Anschlag für die Klappenendstellung (siehe Lage der Klappe 4") dient.The sequence of movements of the switching flaps when they are actuated can be seen from FIG. 2. The flap 4 is in the switched-on position, the cams 15 guided in the groove 16 occupying a lower position. When switching off, the flaps are pivoted until they reach the intermediate position according to the position of the switching flap 4 'by moving the cams 15 into the bulge 19. When the switch-off movement is continued, the cams 15 finally migrate to the upper end of the groove 16, which at the same time serves as a stop for the flap end position (see position of the flap 4 ").

Die Aufnahmekontakte 8, 8' sind durch Schutzhauben 20, 20', 20" abgedeckt, und zwar in der Weise, daß unterschiedlichen Phasen zugehörigen benachbarten Aufnahmekontakten 8, 8' je eine gemeinsame Schutzhaube 20 zugeordnet ist, während der oberste und der unterste Aufnahmekontakt der Leiste je eine einzelne Schutzhaube 20', 20" erhält. Wie aus Fig. 2 ersichtlich, sind die Schutzhauben 20', 20" zerlegte Teile einer Schutzhaube 20.The receptacle contacts 8, 8 'are covered by protective hoods 20, 20', 20 ", in such a way that a common protective hood 20 is assigned to each of the adjacent receptacle contacts 8, 8 'associated with different phases, while the top and bottom receptacle contacts the Each strip receives a single protective hood 20 ', 20 ". How 2, the protective hoods 20 ', 20 "are disassembled parts of a protective hood 20.

Erfolgt die Montage der Leiste nicht auf Sammelschienen, sondern auf Wänden oder Gerüsten, so können Befestigungslaschen 22 angebracht werden. Um eine möglichst zeit- und kostensparende Herstellung der Leiste zu erzielen, werden Einzelteile, die eine komplizierte Form aufweisen, insbesondere die Seitenwände 1, 2, die Schaltklappen 4, 4', 4" und die Schutzhauben 20 als Kunststoffformteile hergestellt.If the strip is not installed on busbars, but rather on walls or scaffolding, fastening tabs 22 can be attached. In order to achieve the most time-saving and cost-effective production of the bar, individual parts which have a complicated shape, in particular the side walls 1, 2, the switching flaps 4, 4 ', 4 "and the protective hoods 20, are produced as molded plastic parts.

Gegebenenfalls kann eine (hier nicht eingezeichnete) Feder oder sonstige Rastvorrichtung angebracht sein, die die Schaltklappe in Ausschaltstellung arretiert.If necessary, a spring (not shown here) or other latching device can be attached, which locks the switching flap in the off position.

Claims (10)

1. Low-voltage, high-capacity fuse switching device, consisting essentially of contact pairs (8, 8') for seating low-voltage, high-capacity fuse inserts (9) which can be fixed to at least one front-side switching flap (4, 4', 4"), pivotal from the switched-on position (Fig. 2, top) through approximately 150-180° into an inverted position and thereby covering in the switched- off position (Fig. 2, bottom) the access opening to the contact pairs, characterized by the combination of the following features:
a) Two side walls (1, 2), bolted together at a distance apart, house between themselves the contact pairs (8, 8') and associated connecting conductors (5, 6, 7, 11);
b) The side walls possess straight grooves (16) or slits, which run slightly forwardly inclined to the front plane and in which studs (15), projecting laterally from the switching flap, are slidably guided;
c) Two levers (17), provided laterally on the switching flap, are articulated to the side walls (1,2) at pivot points (3'), mounted horizontally just in front of the lower ends of the grooves or slits, and to the switching flap at pivot points (18).
2. Fuse switching device, especially three- pole, single-pole switchable, low-voltage, high-capacity fuse panel with contact pairs disposed one above another and associated switching flaps according to Claim 1, characterised in that the side walls (1, 2), containing between themselves the contact pairs (8, 8') and the connecting conductors (5, 6, 7, 11), constitute the body of the fuse panel, and each switching flap (4, 4', 4") is articulated by the combined lever and groove or slit guide to the side walls (1, 2).
3. Switching device according to Claim 1 or 2, characterized in that the grooves (16) or slits in the side walls (1, 2) possess holding points (19), which make possible for each switching flap (4, 4', 4") the adopting of at least one defined intermediate position (Fig. 2, centre) during the course of the pivotal movement.
4. Switching device according to one of Claims 1 to 3, characterized in that the side walls (1, 2) are continued forwards sufficiently far for each switching flap (4, 4', 4") to lie completely between the side walls (1, 2) in the switched-on position.
5. Switching device according to one of Claims 1 to 4, characterized in that the side walls (1, 2) possess, on their inner faces, depressions and projections (12, 23, 24) for seating the connecting conductors (5, 6, 7, 11) and contact parts (13) and protective hoods (20, 20', 20"), and that the positional fixing of the components is effected by screwing the side walls (1, 2) together.
6. Switching device according to Claim 5, characterized in that the depressions in the side walls (1, 2) are framed by rims (23, 24).
7. Switching device according to one of Claims 1 to 6, characterized in that the different phases of associated, adjacent seating contacts (8, 8') of the fuse panel are covered each by one common protective hood (20), formed as a single-piece moulding, and fixed in the side walls (1, 2) of the fuse panel.
8. Switching device according to Claim 7, characterized in that the protective hood (20) can be broken at a predetermined position, preferably can be separated along a line of intentional rupture, in such a manner that one part (20') can be used for covering the uppermost seating contact .(8) and one part (20") for covering the lowest seating contact (8') of the fuse panel.
9. Switching device according to one of Claims 1 to 8, characterized in that the side walls (1, 2) and the switching flaps (4, 4', 4") are castings, injection mouldings or compression mouldings made from plastics material.
10. Switching device according to one of Claims 1 to 9, characterized in that the side walls are held spaced apart by fixed distance pieces (3, 3'), of which at least some (3') serve as pivot point bearing positions for the lateral levers (17) connected with the switching flaps (4, 4', 4")..
EP19800100283 1979-01-29 1980-01-21 L.t. fuse and disconnector assembly Expired EP0013963B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792903322 DE2903322C2 (en) 1979-01-29 1979-01-29 Safety switchgear
DE2903322 1979-01-29

Publications (2)

Publication Number Publication Date
EP0013963A1 EP0013963A1 (en) 1980-08-06
EP0013963B1 true EP0013963B1 (en) 1983-12-28

Family

ID=6061636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800100283 Expired EP0013963B1 (en) 1979-01-29 1980-01-21 L.t. fuse and disconnector assembly

Country Status (2)

Country Link
EP (1) EP0013963B1 (en)
DE (1) DE2903322C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101553964B (en) * 2006-12-11 2012-02-08 西门子公司 Multiphase line fuse module

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2905198A1 (en) * 1979-02-12 1980-08-21 Driescher Spezialfab Fritz Safety disconnecting system for electrical supply rails - has bridging members on swinging blocks guided to form protective cover in front of contacts
DE3047360C2 (en) * 1980-12-16 1987-08-20 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart Switching strip
EP0230596B1 (en) * 1985-12-30 1992-01-02 Stauffer Chemical Company Synergistic herbicide combinations and method of application
CH680316A5 (en) * 1989-09-18 1992-07-31 Weber Ag Panel for medium power range - has replaceable fuses contained in pivotable covers which are either closed or fully open and lie flat against housing
PL207899B1 (en) * 2004-04-09 2011-02-28 Apator Społka Akcyjna Electrical connector
WO2007026003A1 (en) * 2005-08-31 2007-03-08 Zimmer Gmbh Implant
CN112067990B (en) * 2020-09-17 2023-02-21 西安高压电器研究院股份有限公司 Device for arranging volume test of expulsion fuse

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Publication number Priority date Publication date Assignee Title
DE1040646B (en) * 1957-05-02 1958-10-09 Driescher Spezialfab Fritz Fuse disconnector
DE1831280U (en) * 1960-11-04 1961-05-18 Bbc Brown Boveri & Cie LOW VOLTAGE HIGH PERFORMANCE FUSE DISCONNECTOR.
DE2437509C2 (en) * 1974-08-03 1982-12-30 Christian Geyer GmbH & Co, 8500 Nürnberg Fuse disconnector
DE2718657C3 (en) * 1977-04-27 1981-06-25 Felten & Guilleaume Carlswerk AG, 5000 Köln Switching hood for NH fuse strips

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101553964B (en) * 2006-12-11 2012-02-08 西门子公司 Multiphase line fuse module

Also Published As

Publication number Publication date
DE2903322A1 (en) 1980-08-14
EP0013963A1 (en) 1980-08-06
DE2903322C2 (en) 1986-04-30

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