EP0809325B1 - Electrical installation device with clamping terminal for the device - Google Patents

Electrical installation device with clamping terminal for the device Download PDF

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Publication number
EP0809325B1
EP0809325B1 EP97108102A EP97108102A EP0809325B1 EP 0809325 B1 EP0809325 B1 EP 0809325B1 EP 97108102 A EP97108102 A EP 97108102A EP 97108102 A EP97108102 A EP 97108102A EP 0809325 B1 EP0809325 B1 EP 0809325B1
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EP
European Patent Office
Prior art keywords
clamping
terminal
screw
busbar
conducting wire
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 - Lifetime
Application number
EP97108102A
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German (de)
French (fr)
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EP0809325A1 (en
Inventor
Klaus-Peter Eppe
Volker Schmitt
Rolf Goehle
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ABB Patent GmbH
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ABB Patent GmbH
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Publication date
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Publication of EP0809325A1 publication Critical patent/EP0809325A1/en
Application granted granted Critical
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28Clamped connections, spring connections
    • H01R4/30Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36Conductive members located under tip of screw
    • H01R4/363Conductive members located under tip of screw with intermediate part between tip and conductive member

Definitions

  • the invention relates to a terminal for an electrical installation device according to the preamble of claim 1.
  • a circuit breaker a residual current circuit breaker, is used as the installation device or any other installation device in which such terminals are provided.
  • connection terminal which has a box-shaped terminal frame, the one receiving the clamping screw Wall are formed by two superimposed web ends, being on the web projections are provided which in the side walls of the clamping frame be inserted or pressed in so that the clamping frame becomes jammed not deformed.
  • a terminal has also become known in which an annular box frame and an annular clamp frame are intertwined, wherein the clamping screw, which is screwed into the terminal frame, a web of the Reaches through the box frame. Between the box frame and the terminal frame on the one hand and the web and the head of the clamping screw on the other hand can be electrical Connection elements are clamped.
  • connection line With the usual terminals used in a circuit breaker, is, as already indicated, the terminal lug of a busbar between the Screw head and the upper web of the box frame inserted and clamped in it; on the other hand, the connection line, seen from the front, is behind attached to the busbar. For example, if a three-phase busbar block is clamped, then it can no longer be seen whether the connecting conductor is correctly clamped. This can result in incorrect connections.
  • a screw terminal has become known rectangular, frame-shaped clamp part and a U-shaped pressure piece, wherein a frame part can be inserted or inserted into the terminal part, so that are generated by the frame part two connecting conductor receiving spaces, in the different Connection conductor inserted and clamped in it.
  • This Screw terminal consists of three parts, namely the U-shaped pressure piece, the frame-shaped clamp part and the frame part.
  • US 4,526,437 A1 describes a connector made from a u-shaped band is that the leg ends are bent into a cylindrical shape. The inner The cylindrical shape has an internal thread and around the cylindrical shape a ring is arranged, which expands when the clamping screw is screwed in should prevent.
  • the object of the invention is to provide a terminal for an installation switch to create the type mentioned, in which the disadvantages of the known terminals prevents and incorrect connections are avoided; Furthermore the terminal should be designed with fewer parts.
  • the clamp body has a cylindrical shape, which at one end Internal thread for receiving the clamping screw and on opposite Surface lines axially extending slots, the length of which is less than the length of the Terminal body, through which the terminal lug of the busbar and / or the lead wire can be inserted into the terminal.
  • the clamping screw is as Headless stud bolt (stud or grub screw) that is fully formed in the terminal body can be screwed in.
  • a clamping piece is inserted into the clamp body, the two Divide terminal spaces from each other, so that the lead wire in each terminal space and / or the terminal lug can be inserted and clamped therein.
  • the clamping piece can then at least on the terminal surface that the Clamping screw is facing, be V-shaped; this creates a gutter, in which the lead wire is guided against rotation. That means that when screwing the clamping screw the lead wire related to the clamping piece not is twisted.
  • the clamping piece is preferably bent rectangular and has an elongated Tab that reaches through an opening into the interior of the installation switch, so that an inner conductor of the installation switch can be connected to it.
  • a pressure piece of the clamping screw assigned is preferably a pressure piece of the clamping screw assigned.
  • the terminal requires a few openings on the installation device, such as an opening at the top the front, through which the clamping screw is accessible, then further Openings on the side wall through which the connecting conductor or the connecting lug can be inserted into the terminal.
  • the opening is through the connector is inserted closer to the front than the opening through which the connecting lug is inserted. This enables the conductor connections are more accessible and more visible, especially in multi-row Distributions.
  • a major advantage is that accessibility and visibility the conductor connections in multi-row distributions are significantly improved. Furthermore the permissible torque is also higher when a conductor is jammed, which is due to the fact that the screw in a thread within the Leg, so the cylindrical shape is guided. Because in this version the thread pitch can be increased, the number of screw revolutions can be reduced, which are required to fix the conductor.
  • FIG. 1 shows a clamp 10 with a clamp body 11, a clamp screw 12 and a clamping piece 13, which is drawn outside the clamp body, is shown.
  • 1 belongs to the terminal body 11 to the state of the art, such as has become known from US-4,526,437.
  • the arrangement shown in FIG. 1 differs from that according to the invention in that the clamping body (see Fig. 4) is cylindrical. Like beyond that Clamping piece 13 and the clamping screw 12 are inserted into the clamp body according to FIG. 4 are shown in FIG. 1.
  • the clamp body 11 has a U-shape with a web 14 and thereon adjoining legs 15 and 16, which in the web 14 adjacent area 17 and 18 straight or flat and perpendicular to the also flat Are aligned.
  • the flat sections 17 and 18 follow sections 19 and 20 of arcuate and curved design in cross section, which complement each other in a cylindrical shape, the central axis of which is perpendicular to the web and on the inner surface of which an internal thread 21 is attached.
  • the free ends of the Leg sections 19 and 20 have webs 22, 23; 24, 25, which also complement each other to form a circle in cross-section and also on the inside carry the internal thread 21.
  • the webs 22, 23; 24, 25 welded together, for example by means of laser welding or electron beam welding.
  • the web 14 has an L-shaped flag 26, the vertical extending to the plane of the web 14 and in to the legs 15 and 16 opposite leg 27 projecting a T-shaped extension 28 owns.
  • the clamping piece 13 is inserted, which one in Cross-section rectangular, the contour adapted section 29, with a lower and upper side level 30, 31, a web 32 and a web 33, the web 33 is surmounted by a tab 34 which lies in the extension of the side wall 30 and in the assembled state for connecting inner conductors within the installation switching device, that holds the clamp serves.
  • the web 33 are on both sides, the longitudinal edge the side wall 30 with the tab 34 protruding, stops 35, 36 formed.
  • the clamping piece 13 according to FIG. 1 can be manufactured in that an elongated Copper tape with the two flags 35 and 36 at one end by rolling up to it rectangular cross section is formed. With the web 32 first, the clamping piece in pushed the area between the two leg sections 17 and 18. The clamping piece 13 can also between up in the region of the thread 21 the two sections 19 and 20 are pushed up.
  • the clamp is installed in an installation device 40, see Fig. 2, and the clamping screw is through an opening 41 on the front and the clamp itself two openings 42 and 43 accessible on the side wall, being through the opening 42 a connecting conductor and through the opening 43, which lies in a slot 44, a connecting lug a busbar can be inserted.
  • This embodiment is shown in FIG. 3 remove.
  • a cutout 47 and a cutout 48 are shown on the end faces, which together with the cutouts on the other half (not shown) a circuit breaker housing to the recesses 42 and 43 with the Complete slot 44.
  • a terminal 50 is inserted into a terminal receiving space 49 (Without the screw 12 is drawn), the clamping piece 13 with the web 32 can be seen. Likewise, the flag 26 is visible, the one with the T-shaped Section 28 engages in a recess 51 in the housing. If now the clamp body is shifted upwards, then hides the flag with the T-shaped formations 28 the access slot or the access opening 48 or 43 and if the screw is practically screwed onto the upper side wall 31 of the clamping piece, then the screw also hides access through openings 42 and 47 into the interior of the Terminal body 50.
  • the terminal according to the invention now has a terminal body as in Fig. 4 is shown.
  • the clamp body is included as a cylindrical tube piece 60 opposing slots 61 and 62 which extend in the axial direction.
  • the lower edges 64 and 65 of the slots 61 and 62 serve then as a clamp stop, so that a connecting conductor between the connecting terminal and the two edges 64 and 65 can be clamped.
  • the connecting conductor can also be a terminal lug of a busbar.
  • the slots 61 and 62 are designed so that clamping piece 13 are used can, so that thereby two clamping spaces are formed within the two slots 61 and 62 are, as shown in Fig. 1.
  • the slot 43, 44 (Fig. 2) can also be designed so that there is a connecting conductor can be connected. There is also the option of opening 42 so that a terminal lug of a busbar can be used can. This means that the installation device can also be used can be used in an existing installation should.
  • a connecting conductor is inserted between the clamping screw 12 and the clamping piece 29 should be, then the connecting conductor would turn with the Turn screw 12; This can be prevented by changing the clamping screw 12 facing side plane 31 is provided with a V-shape 31a, the V-bottom in The direction of insertion of the connecting conductor runs. Possibly. such a V-shape can also be provided at the lower side level 30.
  • transverse beads could also be provided be that cause an anti-twist protection.

Description

Die Erfindung betrifft eine Anschlußklemme für ein elektrisches Installationsgerät nach dem Oberbegriff des Anspruches 1.The invention relates to a terminal for an electrical installation device according to the preamble of claim 1.

Als Installationsgerät wird ein Leitungsschutzschalter, ein Fehlerstromschutzschalter oder jedes andere Installationsgerät bezeichnet, bei dem derartige Anschlußklemmen vorgesehen sind.A circuit breaker, a residual current circuit breaker, is used as the installation device or any other installation device in which such terminals are provided.

Bei dem üblichen Leitungsschutzschalter ist eine Anschlußklemme vorgesehen, die einen kastenförmigen Klemmenrahmen aufweist, dessen die Klemmschraube aufnehmende Wand durch zwei übereinandergeklappte Stegenden gebildet sind, wobei an den Stegenden Vorsprünge vorgesehen sind, die in die Seitenwände des Klemmrahmens eingesetzt bzw. eingedrückt werden, damit der Klemmrahmen sich beim Verklemmen nicht verformt.In the usual circuit breaker, a connection terminal is provided, which has a box-shaped terminal frame, the one receiving the clamping screw Wall are formed by two superimposed web ends, being on the web projections are provided which in the side walls of the clamping frame be inserted or pressed in so that the clamping frame becomes jammed not deformed.

Es ist weiterhin eine Anschlußklemme bekannt geworden, bei der ein ringförmiger Kastenrahmen und ein ringförmiger Klemmenrahmen ineinander geschlungen sind, wobei die Klemmschraube, die in den Klemmenrahmen eingeschraubt ist, einen Steg des Kastenrahmens durchgreift. Zwischen dem Kastenrahmen und dem Klemmenrahmen einerseits und dem Steg und dem Kopf der Klemmschraube andererseits können elektrische Anschlußelemente festgeklemmt werden.A terminal has also become known in which an annular box frame and an annular clamp frame are intertwined, wherein the clamping screw, which is screwed into the terminal frame, a web of the Reaches through the box frame. Between the box frame and the terminal frame on the one hand and the web and the head of the clamping screw on the other hand can be electrical Connection elements are clamped.

Bei den üblichen Klemmen, die in einem Leitungsschutzschalter verwendet werden, wird, wie schon angedeutet, die Anschlußfahne einer Sammelschiene zwischen den Schraubenkopf und den oberen Steg des Kastenrahmens eingesteckt und darin festgeklemmt; andererseits wird die Anschlußleitung, von der Frontseite aus gesehen hinter der Sammelschiene angekfemmt. Wenn beispielsweise ein Dreiphasensammelschienenblock angeklemmt wird, dann ist nicht mehr zu sehen, ob der Anschlußleiter korrekt festgeklemmt ist. Dadurch können sich Fehlanschlüsse ergeben.With the usual terminals used in a circuit breaker, is, as already indicated, the terminal lug of a busbar between the Screw head and the upper web of the box frame inserted and clamped in it; on the other hand, the connection line, seen from the front, is behind attached to the busbar. For example, if a three-phase busbar block is clamped, then it can no longer be seen whether the connecting conductor is correctly clamped. This can result in incorrect connections.

Aus der EP 0 454 019 A1 ist eine Schraubanschlußklemme bekannt geworden, die einen rechteckigen, rahmenförmigen Klemmenteil und ein u-förmiges Druckstück aufweist, wobei in das Klemmenteil ein Rahmenteil einsetzbar bzw. einfügbar ist, so daß durch das Rahmenteil zwei Anschlußleiteraufnahmeräume erzeugt werden, in die unterschiedliche Anschlußleiter eingefügt und darin festgeklemmt werden können. Diese Schraubanschlußklemme besteht aus drei Teilen, nämlich dem u-förmigen Druckstück, dem rahmenförmigen Klemmenteil und dem Rahmenteil. Die US 4 526 437 A1 beschreibt eine Anschlußklemme, die aus einem u-förmigen Band dadurch hergestellt wird, daß die Schenkelenden zu einer zylindrischen Form gebogen sind. Das Innere der zylindrischen Form besitzt ein Innengewinde und um die zylindrische Form herum ist ein Ring angeordnet, der ein Aufweiten beim Einschrauben der Klemmschraube verhindern soll.From EP 0 454 019 A1, a screw terminal has become known rectangular, frame-shaped clamp part and a U-shaped pressure piece, wherein a frame part can be inserted or inserted into the terminal part, so that are generated by the frame part two connecting conductor receiving spaces, in the different Connection conductor inserted and clamped in it. This Screw terminal consists of three parts, namely the U-shaped pressure piece, the frame-shaped clamp part and the frame part. US 4,526,437 A1 describes a connector made from a u-shaped band is that the leg ends are bent into a cylindrical shape. The inner The cylindrical shape has an internal thread and around the cylindrical shape a ring is arranged, which expands when the clamping screw is screwed in should prevent.

Aufgabe der Erfindung ist es, eine Anschlußklemme für einen Installationsschalter der eingangs genannten Art zu schaffen, bei der die Nachteile der bekannten Anschlußklemmen verhindert ünd bei denen Fehlanschlüsse sicher vermieden sind; darüber hinaus soll die Anschlußklemme mit weniger Teilen ausgebildet sein. The object of the invention is to provide a terminal for an installation switch to create the type mentioned, in which the disadvantages of the known terminals prevents and incorrect connections are avoided; Furthermore the terminal should be designed with fewer parts.

Diese Aufgabe wird erfindungsgemäß gelöst durch die kennzeichnenden Merkmale des Anspruches 1.This object is achieved by the characterizing features of the Claim 1.

Erfindungsgemäß besitzt der Klemmenkörper eine Zylinderform, die an einem Ende ein Innengewinde zur Aufnahme der Klemmschraube und an sich gegenüberliegenden Mantellinien axial verlaufende Schlitze, deren Länge kleiner ist als die Länge des Klemmenkörpers, aufweist, durch die die Anschlußfahne der Sammelschiene und/oder der Leitungsdraht in die Anschlußklemme einführbar sind. Die Klemmschraube ist als kopffreie Bolzenschraube (Stift-oder Madenschraube) ausgebildet, die vollständig in den Klemmenkörper einschraubbar ist. In dem der Klemmschraube entgegengesetzten Endbereich der Schlitze ist in den Klemmenkörper ein Klemmstück eingesetzt, das zwei Klemmräume voneinander abteilt, so daß in jedem Klemmraum der Leitungsdraht und/oder die Anschlußfahne einführbar und darin festklemmbar sind.According to the invention, the clamp body has a cylindrical shape, which at one end Internal thread for receiving the clamping screw and on opposite Surface lines axially extending slots, the length of which is less than the length of the Terminal body, through which the terminal lug of the busbar and / or the lead wire can be inserted into the terminal. The clamping screw is as Headless stud bolt (stud or grub screw) that is fully formed in the terminal body can be screwed in. In the opposite of the clamping screw End area of the slots, a clamping piece is inserted into the clamp body, the two Divide terminal spaces from each other, so that the lead wire in each terminal space and / or the terminal lug can be inserted and clamped therein.

Mit dieser besonderen Ausgestaltung wird zum Einen die Anzahl der erforderlichen Teile reduziert. Man benötigt anstatt zweier ineinander verschachteiter ringförmiger Rahmenteile lediglich ein Zylinderteil, wobei ein zusätzlicher Verstärkungsring vermieden ist. Bei dieser Anordnung kann die Sammelschiene mit ihrer Anschlußfahne hinter dem Anschlußdraht an der Anschlußklemme festgeklemmt werden, was den besonderen Vorteil hat, daß Fehlanschlüsse sicher vermieden werden, weil der Leitungsdraht beim Anschließen immer sichtbar ist.With this special design, on the one hand, the number of required Parts reduced. Instead of two interlocking ring-shaped tubes, one needs more Frame parts only a cylinder part, an additional reinforcement ring being avoided is. With this arrangement, the busbar with its connecting lug behind the wire to be clamped to the terminal, which is special The advantage is that incorrect connections are safely avoided because of the lead wire is always visible when connecting.

Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den Unteransprüchen zu entnehmen.Further advantageous refinements and improvements of the invention are the subclaims refer to.

Danach kann das Klemmstück dann wenigstens an der Klemmenfläche, die der Klemmschraube zugewandt ist, V-förmig gebogen sein; dadurch wird eine Rinne gebildet, in der der Leitungsdraht verdrehsicher geführt ist. Das bedeutet, daß beim Zuschrauben der Klemmschraube der Leitungsdraht bezogen auf das Klemmstück nicht verdreht wird. Then the clamping piece can then at least on the terminal surface that the Clamping screw is facing, be V-shaped; this creates a gutter, in which the lead wire is guided against rotation. That means that when screwing the clamping screw the lead wire related to the clamping piece not is twisted.

Das Klemmstück ist dabei vorzugsweise rechteckig gebogen und besitzt eine verlängerte Lasche, die durch eine Öffnung ins Innere des Installationsschalters greift, so daß ein Innenleiter des Installationsschalters daran anschließbar ist.The clamping piece is preferably bent rectangular and has an elongated Tab that reaches through an opening into the interior of the installation switch, so that an inner conductor of the installation switch can be connected to it.

Zur Verbesserung der Kraftübertragung von der Klemmschraube auf den Anschlußleiter oder die Anschlußfahne ist in bevorzugter Weise der Klemmschraube ein Druckstück zugeordnet.To improve the power transmission from the clamping screw to the connecting conductor or the terminal lug is preferably a pressure piece of the clamping screw assigned.

Darüber hinaus kann zwischen dem Ende der Klemmschraube und dem Klemmstück bzw. dem Klemmstück und dem Steg jeweils ein Leiteranschluß und/oder eine Anschlußfahne einer Sammelschiene festklemmbar sein.In addition, there can be between the end of the clamping screw and the clamping piece or the clamping piece and the web each have a conductor connection and / or a connection lug be clamped to a busbar.

Wenn die Klemme in ein elektrisches Installationsgerät eingesetzt ist, dann wird, von der Frontseite aus gesehen, zwischen dem Schraubenkopf und dem Klemmstück ein Anschlußleiter und zwischen dem Klemmstück und dem Steg eine Anschlußfahne festgeklemmt. Damit wird es möglich, daß der Anschlußleiter vor der Sammelschiene an der Klemme festgeklemmt werden kann, so daß immer sichtbar ist, ob der Anschlußleiter korrekt angeschlossen ist.If the terminal is inserted in an electrical installation device, then from seen from the front, between the screw head and the clamping piece Connection conductor and a connecting lug clamped between the clamping piece and the web. This makes it possible for the connecting conductor to be in front of the busbar the terminal can be clamped so that it is always visible whether the connecting conductor is correctly connected.

Die Klemme erfordert am Installationsgerät einige Öffnungen, so eine Öffnung oben an der Frontseite, durch die hindurch die Klemmschraube zugänglich ist, sodann weitere Öffnungen an der Seitenwandung, durch die der Anschlußleiter bzw. die Anschlußfahne in die Klemme hineingesteckt werden können. Dabei ist diejenige Öffnung, durch die der Anschlußleiter eingeführt wird, näher an der Frontseite als diejenige Öffnung, durch die die Anschlußfahne eingeführt wird. Damit wird ermöglicht, daß die Leiteranschlüsse besser zugänglich und besser sichtbar sind, insbesondere in mehrreihigen Verteilungen.The terminal requires a few openings on the installation device, such as an opening at the top the front, through which the clamping screw is accessible, then further Openings on the side wall through which the connecting conductor or the connecting lug can be inserted into the terminal. The opening is through the connector is inserted closer to the front than the opening through which the connecting lug is inserted. This enables the conductor connections are more accessible and more visible, especially in multi-row Distributions.

Aufgrund der Zuordnung der Klemmschraube zu dem Klemmenkörper sind auch Fehlanschlüsse durch falsches Einstecken des Anschlußleiters nicht mehr möglich. Dadurch, daß die Klemmschraube vollständig in den Klemmenkörper eingeschraubt werden kann, verdeckt die Schraube diese Zuführöffnung im Gehäuse, so daß ein Fehlanschluß nicht möglich ist.Due to the assignment of the clamping screw to the terminal body, there are also incorrect connections not possible due to incorrect insertion of the connection cable. Thereby, that the clamping screw is completely screwed into the clamp body can, the screw covers this feed opening in the housing, so that a wrong connection not possible.

Wie schon erwähnt, ist ein wesentlicher Vorteil, daß die Zugänglichkeit und die Sichtbarkeit der Leiteranschlüsse in mehrreihigen Verteilungen erheblich verbessert ist. Darüberhinaus ist das zulässsige Drehmoment beim Verklemmen eines Leiters auch höher, was darauf zurückzuführen ist, daß die Schraube in einem Gewinde innerhalb der Schenkel, also der zylindrischen Form, geführt ist. Da bei dieser Ausführung die Gewindesteigung vergrößert werden kann, kann auch die Anzahl der Schraubenumdrehungen verringert werden, die erforderlich sind, um den Leiter zu fixieren.As already mentioned, a major advantage is that accessibility and visibility the conductor connections in multi-row distributions are significantly improved. Furthermore the permissible torque is also higher when a conductor is jammed, which is due to the fact that the screw in a thread within the Leg, so the cylindrical shape is guided. Because in this version the thread pitch can be increased, the number of screw revolutions can be reduced, which are required to fix the conductor.

Anhand der Zeichnung, in der ein Ausführungsbeispiel der Erfindung dargestellt ist, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben.Using the drawing, in which an embodiment of the invention is shown, the invention and further advantageous refinements and improvements the invention explained and described in more detail.

Es zeigen:

Fig. 1
eine perspektivische Ansicht einer Klemme, deren Klemmenkörper zum Stand der Technik gehört,
Fig. 2
eine perspektivische Ansicht eines Installationsgerätes,
Fig. 3
eine Klemme gemäß Fig. 1, eingebaut in einen Leitungsschutzschalter, dessen Gehäuse nur teilweise dargestellt ist, und
Fig. 4
eine perspektivische Ansicht einer Ausführungsform der Erfindung.
Show it:
Fig. 1
2 shows a perspective view of a clamp, the clamp body of which belongs to the prior art,
Fig. 2
a perspective view of an installation device,
Fig. 3
1, installed in a circuit breaker, the housing of which is only partially shown, and
Fig. 4
a perspective view of an embodiment of the invention.

Die Fig. 1 zeigt eine Klemme 10, mit einem Klemmenkörper 11, einer Klemmschraube 12 und einem Klemmstück 13, welches außerhalb des Klemmenkörpers gezeichnet, dargestellt ist. Von der Anschlußklemme gemäß Fig. 1 gehört der Klemmenkörper 11 zum Stand der Technik, wie er etwa aus der US-4 526 437 bekannt geworden ist. Die in der Fig. 1 dargestellte Anordnung unterscheidet sich von der erfindungsgemäßen dadurch, daß der Klemmkörper (siehe Fig. 4) zylindrisch ist. Wie darüber hinaus das Klemmstück 13 und die Klemmschraube 12 in den Klemmenkörper gemäß Fig. 4 eingesetzt werden, zeigt die Fig. 1.1 shows a clamp 10 with a clamp body 11, a clamp screw 12 and a clamping piece 13, which is drawn outside the clamp body, is shown. 1 belongs to the terminal body 11 to the state of the art, such as has become known from US-4,526,437. The The arrangement shown in FIG. 1 differs from that according to the invention in that the clamping body (see Fig. 4) is cylindrical. Like beyond that Clamping piece 13 and the clamping screw 12 are inserted into the clamp body according to FIG. 4 are shown in FIG. 1.

Daher wird im folgenden kurz die in Fig. 1 dargestellte Anschlußkiemme beschrieben.Therefore, the connecting jaw shown in FIG. 1 is briefly described below.

Der Klemmenkörper 11 besitzt im Prinzip eine U-Form mit einem Steg 14 und daran anschließenden Schenkeln 15 und 16, welche in dem Steg 14 benachbarten Bereich 17 und 18 gerade bzw. eben ausgebildet und senkrecht zu dem ebenfalls eben ausgebildeten Steg ausgerichtet sind. An die ebenen Abschnitte 17 und 18 schließen sich im Querschnitt kreisbogenförmig ausgebildete und gebogene Abschnitte 19 und 20 an, die sich zu einer Zylinderform ergänzen, deren Mittelachse senkrecht zum Steg verläuft und an deren Innenfläche ein Innengewinde 21 angebracht ist. Die freien Enden der Schenkelabschnitte 19 und 20 besitzen aufeinanderzuweisende Stege 22, 23; 24, 25, die sich ebenso zu einem Kreis im Querschnitt ergänzen und die auch auf ihrer Innenseite das Innengewinde 21 tragen. An ihren Stoßstellen sind die Stege 22, 23; 24, 25 miteinander verschweißt, beispielsweise mittels Laserschweißung oder Elektronenstrahlschweißung.In principle, the clamp body 11 has a U-shape with a web 14 and thereon adjoining legs 15 and 16, which in the web 14 adjacent area 17 and 18 straight or flat and perpendicular to the also flat Are aligned. The flat sections 17 and 18 follow sections 19 and 20 of arcuate and curved design in cross section, which complement each other in a cylindrical shape, the central axis of which is perpendicular to the web and on the inner surface of which an internal thread 21 is attached. The free ends of the Leg sections 19 and 20 have webs 22, 23; 24, 25, which also complement each other to form a circle in cross-section and also on the inside carry the internal thread 21. The webs 22, 23; 24, 25 welded together, for example by means of laser welding or electron beam welding.

An seiner einen Stirnkante besitzt der Steg 14 eine L-förmige Fahne 26, deren senkrecht zu der Ebene des Steges 14 verlaufender und in zu den Schenkeln 15 und 16 entgegengesetzter Richtung vorspringenden Schenkel 27 eine T-förmige Erweiterung 28 besitzt.At one end edge, the web 14 has an L-shaped flag 26, the vertical extending to the plane of the web 14 and in to the legs 15 and 16 opposite leg 27 projecting a T-shaped extension 28 owns.

In den Raum, der seitlich durch die beiden Abschnitte 17 und 18 begrenzt ist und eine rechteckige Kontur besitzt, wird das Klemmstück 13 eingesteckt, welches einen im Querschnitt rechteckigen, der Kontur angepaßten Abschnitt 29 aufweist, mit einer unteren und oberen Seitenebene 30, 31, einem Steg 32 und einem Steg 33, wobei der Steg 33 von einer Lasche 34 überragt ist, die in Verlängerung der Seitenwand 30 liegt und im montierten Zustand zum Anschluß von Innenleitern innerhalb des Installationsschaltgerätes, das die Klemme aufnimmt, dient. Am Steg 33 sind beidseitig, die Längskante der Seitenwand 30 mit der Lasche 34 überragend, Anschläge 35, 36 angeformt.In the space that is laterally delimited by the two sections 17 and 18 and one has a rectangular contour, the clamping piece 13 is inserted, which one in Cross-section rectangular, the contour adapted section 29, with a lower and upper side level 30, 31, a web 32 and a web 33, the web 33 is surmounted by a tab 34 which lies in the extension of the side wall 30 and in the assembled state for connecting inner conductors within the installation switching device, that holds the clamp serves. On the web 33 are on both sides, the longitudinal edge the side wall 30 with the tab 34 protruding, stops 35, 36 formed.

Das Klemmstück 13 gemäß Fig. 1 ist dadurch herstellbar, daß ein langgestrecktes Kupferband mit den beiden Fahnen 35 und 36 an einem Ende durch Aufrollen zu dem rechteckigen Querschnitt geformt wird. Mit dem Steg 32 zuerst wird das Klemmstück in den Bereich zwischen den beiden Schenkelabschnitten 17 und 18 hineingeschoben. Das Klemmstück 13 kann dabei auch nach oben in den Bereich des Gewindes 21 zwischen die beiden Abschnitte 19 und 20 hochgeschoben werden.The clamping piece 13 according to FIG. 1 can be manufactured in that an elongated Copper tape with the two flags 35 and 36 at one end by rolling up to it rectangular cross section is formed. With the web 32 first, the clamping piece in pushed the area between the two leg sections 17 and 18. The clamping piece 13 can also between up in the region of the thread 21 the two sections 19 and 20 are pushed up.

Die Klemme wird in ein Installationsgerät 40 eingebaut, siehe Fig. 2, und die Klemmschraube ist durch eine Öffnung 41 an der Frontseite und die Klemme selbst durch zwei Öffnungen 42 und 43 an der Seitenwandung zugänglich, wobei durch die Öffnung 42 ein Anschlußleiter und durch die Öffnung 43, die in einem Schlitz 44 liegt, eine Anschlußfahne einer Sammelschiene einfügbar sind. Diese Ausgestaltung ist der Fig. 3 zu entnehmen. Man erkennt die eine Hälfte 45 eines Leitungsschutzschaltergehäuses, mit einer Halbkreisöffnung 46, die sich mit der anderen Hälfte des Gehäuses zu der Öffnung 41 ergänzt. An den Stirnseiten sind ein Ausschnitt 47 und ein Ausschnitt 48 gezeigt, die sich zusammen mit den Ausschnitten an der anderen Hälfte (nicht dargestellt) eines Leitungsschutzschaltergehäuses zu den Ausnehmungen 42 und 43 mit dem Schlitz 44 ergänzen. In einen Klemmenaufnahmeraum 49 ist eine Klemme 50 eingesetzt (ohne daß die Schraube 12 gezeichnet ist), wobei auch das Klemmstück 13 mit dem Steg 32 zu sehen ist. Ebenso ist die Fahne 26 sichtbar, die mit dem T-förmigen Abschnitt 28 in eine Vertiefung 51 im Gehäuse eingreift. Wenn nun der Klemmenkörper nach oben verschoben ist, dann verdeckt die Fahne mit den T-förmigen Anformungen 28 den Zugangsschlitz bzw. die Zugangsöffnung 48 bzw. 43 und wenn die Schraube praktisch bis auf die obere Seitenwand 31 des Klemmstückes aufgeschraubt ist, dann verdeckt die Schraube auch den Zutritt durch die Öffnung 42 bzw. 47 in das Innere des Klemmenkörpers 50. The clamp is installed in an installation device 40, see Fig. 2, and the clamping screw is through an opening 41 on the front and the clamp itself two openings 42 and 43 accessible on the side wall, being through the opening 42 a connecting conductor and through the opening 43, which lies in a slot 44, a connecting lug a busbar can be inserted. This embodiment is shown in FIG. 3 remove. One recognizes the one half 45 of a circuit breaker housing with a semicircular opening 46 which is aligned with the other half of the housing to the opening 41 added. A cutout 47 and a cutout 48 are shown on the end faces, which together with the cutouts on the other half (not shown) a circuit breaker housing to the recesses 42 and 43 with the Complete slot 44. A terminal 50 is inserted into a terminal receiving space 49 (Without the screw 12 is drawn), the clamping piece 13 with the web 32 can be seen. Likewise, the flag 26 is visible, the one with the T-shaped Section 28 engages in a recess 51 in the housing. If now the clamp body is shifted upwards, then hides the flag with the T-shaped formations 28 the access slot or the access opening 48 or 43 and if the screw is practically screwed onto the upper side wall 31 of the clamping piece, then the screw also hides access through openings 42 and 47 into the interior of the Terminal body 50.

Die erfindungsgemäße Anschlußklemme besitzt nun einen Klemmenkörper wie er in Fig. 4 dargestellt ist. Der Klemmenkörper ist als ein zylinderförmiges Rohrstück 60 mit sich gegenüberliegenden Schlitzen 61 und 62 versehen, die in axialer Richtung verlaufen. An dem einen, in der Fig. 4 oberen Ende befindet sich ein Innengewinde 63 in welches die Klemmschraube 12 beispielsweise eine Madenschraube, siehe Fig. 1, eingeschraubt werden kann. Die unteren Kanten 64 und 65 der Schlitze 61 und 62 dienen dann als Klemmanschlag, so daß ein Anschlußleiter zwischen der Anschlußklemme und den beiden Kanten 64 und 65 festgeklemmt werden kann. Der Anschlußleiter kann auch eine Anschlußfahne einer Sammelschiene sein.The terminal according to the invention now has a terminal body as in Fig. 4 is shown. The clamp body is included as a cylindrical tube piece 60 opposing slots 61 and 62 which extend in the axial direction. At one end, in FIG. 4, there is an internal thread 63 in which screwed in the clamping screw 12, for example a grub screw, see FIG. 1 can be. The lower edges 64 and 65 of the slots 61 and 62 serve then as a clamp stop, so that a connecting conductor between the connecting terminal and the two edges 64 and 65 can be clamped. The connecting conductor can also be a terminal lug of a busbar.

Die Schlitze 61 und 62 sind so ausgestaltet, daß Klemmstück 13 eingesetzt werden kann, so daß dadurch innerhalb der beiden Schlitze 61 und 62 zwei Klemmräume gebildet sind, wie dies in Fig. 1 dargestellt ist.The slots 61 and 62 are designed so that clamping piece 13 are used can, so that thereby two clamping spaces are formed within the two slots 61 and 62 are, as shown in Fig. 1.

Der Schlitz 43, 44 (Fig. 2) kann auch so ausgebildet sein, daß dort ein Anschlußleiter angeschlossen werden kann. Darüberhinaus besteht auch die Möglichkeit, die Öffnung 42 so auszubilden, daß eine Anschlußfahne einer Sammelschiene eingesetzt werden kann. Dadurch besteht die Möglichkeit, daß das Installationsgerät auch dann verwendet werden kann, wenn es in eine schon bestehende Installationsanlage eingesetzt werden soll.The slot 43, 44 (Fig. 2) can also be designed so that there is a connecting conductor can be connected. There is also the option of opening 42 so that a terminal lug of a busbar can be used can. This means that the installation device can also be used can be used in an existing installation should.

Wenn zwischen die Klemmschraube 12 und das Klemmstück 29 ein Anschlußleiter eingesetzt werden soll, dann würde sich der Anschlußleiter beim Zudrehen mit der Schraube 12 verdrehen; dies kann verhindert werden, in dem die der Klemmschraube 12 zugewandte Seitenebene 31 mit einer V-Form 31a versehen ist, deren V-Grund in Einschieberichtung des Anschlußleiters verläuft. Ggf. kann eine solche V-Form auch bei der unteren Seitenebene 30 vorgesehen sein.If a connecting conductor is inserted between the clamping screw 12 and the clamping piece 29 should be, then the connecting conductor would turn with the Turn screw 12; This can be prevented by changing the clamping screw 12 facing side plane 31 is provided with a V-shape 31a, the V-bottom in The direction of insertion of the connecting conductor runs. Possibly. such a V-shape can also be provided at the lower side level 30.

Anstatt einer derartigen V-Form könnten auch querverlaufende Sicken vorgesehen sein, die einen Verdrehschutz bewirken.Instead of such a V-shape, transverse beads could also be provided be that cause an anti-twist protection.

Claims (6)

  1. A clamping terminal for an electrical installation switch, having a clamping part and a clamping screw for clamping a conducting wire and/or the terminal lug of a busbar, characterized in that the clamping part is provided with a cylindrical shape (60) which is provided at one end with an inner thread (63) for receiving the clamping screw (12) and slots (61, 62) which extend axially at mutually opposite side lines, whose length is smaller than the length of the clamping part (60) and through which the terminal lug of the busbar and/or the conducting wire are insertable into the clamping terminal, that the clamping screw (12) is a headless stud bolt (gudgeon or headless screw) which can be screwed completely into the clamping part (60) and that a clamping element (13) is inserted into the clamping part in the end zone of the slots (61, 62) which is opposite of the clamping screw (12), which clamping element separates two clamping chambers from one another, so that in each clamping chamber the conducting wire and/or the terminal lug is introducible and clampable therein.
  2. A clamping terminal as claimed in claim 1, characterized in that the clamping part (13) is V- or U-shaped at least at the clamping surface facing the clamping screw or is provided with beads, with the base edge (31a) or base line or the beads extending in the inserting direction of the conducting wire, thus forming a groove in which the conducting wire is guided in an anti-rotating manner.
  3. A clamping terminal as claimed in one of the claims 1 and 2, characterized in that the clamping part (13) is bent rectangularly and is provided with an extended bracket (34) which engages through the opening of the installation device, so that an inner conductor can be connected thereto.
  4. A clamping terminal as claimed in one of the preceding claims, characterized in that a clamping member is associated with the clamping screw.
  5. A clamping terminal as claimed in one of the preceding claims, characterized in that one conductor terminal and/or one terminal lug of a busbar each can be clamped tight between the end of the clamping screw (12) and the clamping element (13) or between the clamping element (13) and the bar (14).
  6. A terminal built into an installation device, preferably a circuit breaker, as claimed in one of the preceding claims, characterized in that, as seen from the front side of the installation device, a connecting conductor can be clamped between the clamping screw (12) and the clamping element (13) and a terminal lug of a busbar between the clamping element (13) and the bar (14).
EP97108102A 1996-05-25 1997-05-20 Electrical installation device with clamping terminal for the device Expired - Lifetime EP0809325B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19621194A DE19621194A1 (en) 1996-05-25 1996-05-25 Electrical installation device and connection terminal for the installation device
DE19621194 1996-05-25

Publications (2)

Publication Number Publication Date
EP0809325A1 EP0809325A1 (en) 1997-11-26
EP0809325B1 true EP0809325B1 (en) 2001-11-07

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ID=7795368

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Application Number Title Priority Date Filing Date
EP97108102A Expired - Lifetime EP0809325B1 (en) 1996-05-25 1997-05-20 Electrical installation device with clamping terminal for the device

Country Status (2)

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EP (1) EP0809325B1 (en)
DE (2) DE19621194A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916740A1 (en) 2006-10-28 2008-04-30 ABB PATENT GmbH Installation switching device and connecting terminal for an installation switching device
EP1916741A1 (en) 2006-10-28 2008-04-30 ABB PATENT GmbH Installation switching device and terminal clamp therefor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905443A1 (en) * 1999-02-10 2000-08-17 Abb Patent Gmbh Terminal for an electrical installation device
DE19938883A1 (en) * 1999-08-17 2001-04-19 Langmatz Lic Gmbh Screw terminal for electrical cable, has threaded pin with worm section that engages rack to clamp cable
DE19962289A1 (en) * 1999-12-23 2001-06-28 Abb Patent Gmbh Connecting terminal for bus bar arrangement in circuit breaker with spring holding frame against clamp
ITMI20012324A1 (en) * 2001-11-06 2003-05-06 Abb Service Srl CLAMP FOR A MODULAR LOW VOLTAGE EQUIPMENT
DE102005055598A1 (en) * 2005-11-19 2007-05-31 Phoenix Contact Gmbh & Co. Kg Electrical lead terminal includes screw clamp formed from sheet metal, which accommodates screw in pressed cylindrical passage between overlapping sheet sections

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526437A (en) * 1983-03-17 1985-07-02 Erico Products, Inc. Electrical bracket
IT1203858B (en) * 1987-04-03 1989-02-23 Eleco Italiana Srl ELECTRIC JUNCTION OF DERIVATION
DE4013225B4 (en) * 1990-04-26 2004-02-19 Abb Patent Gmbh screw terminal
US5107396A (en) * 1991-06-03 1992-04-21 General Electric Company Circuit breaker combined terminal lug and connector
DE9406108U1 (en) * 1994-04-13 1994-06-16 Kloeckner Moeller Gmbh Box clamp for electrical devices
FR2724062B1 (en) * 1994-08-26 1996-11-15 Soule Sa CONNECTOR FOR CONNECTING A LOW VOLTAGE RIGID ELECTRIC CABLE TO AN APPARATUS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916740A1 (en) 2006-10-28 2008-04-30 ABB PATENT GmbH Installation switching device and connecting terminal for an installation switching device
EP1916741A1 (en) 2006-10-28 2008-04-30 ABB PATENT GmbH Installation switching device and terminal clamp therefor

Also Published As

Publication number Publication date
EP0809325A1 (en) 1997-11-26
DE59705237D1 (en) 2001-12-13
DE19621194A1 (en) 1997-11-27

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