EP1028488A1 - Connecting terminal for an electrical apparatus - Google Patents

Connecting terminal for an electrical apparatus Download PDF

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Publication number
EP1028488A1
EP1028488A1 EP00101254A EP00101254A EP1028488A1 EP 1028488 A1 EP1028488 A1 EP 1028488A1 EP 00101254 A EP00101254 A EP 00101254A EP 00101254 A EP00101254 A EP 00101254A EP 1028488 A1 EP1028488 A1 EP 1028488A1
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EP
European Patent Office
Prior art keywords
clamping
clamping screw
thread
screw
slots
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00101254A
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German (de)
French (fr)
Other versions
EP1028488B1 (en
Inventor
Klaus-Peter Dipl.-Ing. Eppe
Ralf Dipl.-Ing. Wieland
Ralf Dipl.-Ing. Weber
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ABB Patent GmbH
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ABB Patent GmbH
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Publication date
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1028488A1 publication Critical patent/EP1028488A1/en
Application granted granted Critical
Publication of EP1028488B1 publication Critical patent/EP1028488B1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • H01R4/366—Conductive members located under tip of screw with intermediate part between tip and conductive member intermediate part attached to the tip of the screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member

Definitions

  • the invention relates to a connector for an electrical installation device according to the preamble of claim 1.
  • Terminals in electrical installation devices especially in circuit breakers, Residual current circuit breakers and the like are used to provide electrical connection conductors in the form of round conductors, stranded conductors or ribbon cables to the installation device to connect.
  • connection terminal In conventional circuit breakers, a connection terminal is provided, one has box-shaped clamping frame, the one receiving the clamping screw Wall are formed by two superimposed web ends. On the bridge ends projections are provided which are pressed into the side walls of the clamping frame so that the clamping frame does not deform when jammed, see e.g. B. EP 0 454 019 A1.
  • connection terminal in which a cross section rectangular forged part is provided, which has an inner bushing, the has a threaded section into which a stud screw is screwed can be used as an actuating tool, for example, an Allen key Can be used.
  • a terminal of the type mentioned becomes, which has a cylindrical clamp body, which at its one End has an internal thread for receiving a clamping screw and beyond axial openings or slots on the diametrically opposed Has wall sections through which the space is accessible, in which an attachment he follows.
  • the end face of the clamping screw is pressed on the conductor, what when clamping because of the rotating clamping screw This can lead to damage, particularly in the case of fine-stranded conductors.
  • the clamping frame or the clamping body can twist and exert a torque on the terminal so that the housing of the installation device, into which the connector is inserted, expanded or even damaged can be.
  • the clamping screw when Unscrewing can be unscrewed from the clamping frame. She can Tilt, which creates problems when tightening again, or on the housing bump, which can also lead to damage.
  • the object of the invention is to provide a terminal of the type mentioned create damage to the housing as well as a complete unscrewing the clamping screw can be safely avoided.
  • the internal thread section of the clamping body at a distance from the upper end face of the Clamping body ends which is slightly larger than the axial thread area of the Clamping screw; the inside diameter of this thread-free section is included slightly larger than the outside diameter of the clamping screw, so that after unscrewing the clamping screw from the internal thread section the clamping screw thread gets into the thread-free section of the clamping body and this the clamping screw leads outside the internal thread section.
  • the length of the printing plate receiving and leading slots on the clamp body should be dimensioned so that if the clamping screw gets into the thread-free section of the clamping body, the pressure plate bears against the actuation-side slot ends.
  • the Pressure plate are fixed by a riveting process on the clamping screw, whereby the pressure plate is rotatable relative to the clamping screw.
  • the internal thread of the Clamping body and the external thread of the clamping screw as a saw tooth thread be formed, wherein according to a further embodiment of the invention the approximately radially extending flank is directed to the clamping point or points in the clamping direction.
  • the connecting terminal 10 shown in FIG. 1 has a cylindrical clamping body 11, the two diametrically opposite slots 12 which run axially, has, of which only one of the slots is visible.
  • the inner surface of the cylindrical clamp body 11 has between the slots 12 internal thread areas on diametrically opposite inner wall sections 13, which are formed by pressing in from the outside, which in FIG. 1 is based on the axial extending recess 14 can be seen.
  • the internal thread section 13 which is at a distance L from the upper end of the clamping body 11 (see Fig. 4), is a pin screw 15 screwed, the inner end of an extension 16 with a reduced Has a diameter on which there is a rivet 17 with respect to the projection or extension 16 excludes larger diameter, wherein in the section between the clamping screw 15 and the rivet 17 is a pressure plate 18, which has a bore, not shown, in which the pressure plate as the pressure piece 18 is riveted by means of the rivet.
  • the pressure piece 18 engages in the axially extending Slots 12 on both sides, so that it is in the slots 13 by their axial Longitudinal edges 19, 20 is guided axially.
  • a clamping piece 25 is inserted into the space between the longitudinal edges 19 and 20, which is U-shaped and two transverse to the central axis of the clamping body 11 extending legs 26 and 27, being perpendicular to the leg 26 to this and parallel to the central axis of the clamping body 11, a connecting tab 28 is integrally formed on the connection elements for inside the installation device components are attached. Between the two legs 26 and 27 there is a pressure element 29 so that the two legs 26 and 27 when tightening not deform the clamping screw towards each other.
  • a part of the clamp body 11 is now shown, in which it can be seen that the internal thread section 13 ends at the distance L from the upper end face, so that a thread-free section 33 is provided on the inner surface of the clamping body is whose inner diameter up to the edge of the clamping body is the outer diameter corresponds to the screw 15, so that the screw 15 is guided in this section is.
  • This ensures that when the screw 15 is screwed in again, the external thread the screw 15 immediately meshes with the internal thread 13.
  • Fig. 2 shows the installation of the clamping screw 10 in a housing part 40, which with a corresponding shell-shaped housing part (not shown) to a circuit breaker housing is added.
  • This housing part 40 has a terminal receiving space 41, the length and inner diameter of the terminal 10 adapted is.
  • the housing 40 has a circular opening from the front side 62 43, through which a tool can be passed to the screw 15.
  • On the So-called narrow side surfaces 44 of the housing part are openings 45 and 46 provided by the connecting conductor to the clamping screw in the direction of arrow P1 or P2 can be introduced.
  • the arrangement is chosen so that the opening 46 a terminal lug for a busbar can be inserted, whereas a round wire or stranded wire can be connected through the opening 45 can.
  • the housing part 40 is supplemented by an identically designed housing part in which the halves of the openings 43, 45 and 46 shown in FIG "Closed" breakthroughs are added, so that in the assembled state a circular opening 43, a rectangular opening 45 and a rectangular one Opening 46 result.

Abstract

The connection clamp comprises a cylindrical clamp body (11) which comprises axial opposite slots at diametrically opposite coat surface areas. The clamp comprises a clamping screw (15) and a clamping part which can be inserted in the slots, so that at least one conductor can respectively be clamped between the clamping screw and the clamping part, and between the clamping part and an adjacent edge of the slots, proceeding crosswise to the centre of the clamping part. A pressure disk (18), revolving with respect to the clamping screw, is provided in the interior of the clamping screw, having plots engaging in the slots for an axial guidance.

Description

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

Anschlußklemmen in elektrischen Installationsgeräten, insbesondere in Leitungsschutzschaltern, Fehlerstromschutzschaltern und dgl., dienen dazu, elektrische Anschlußleiter in Form von Rundleitern, Litzenleitern oder Flachbandleitern an das Installationsgerät anzuschließen.Terminals in electrical installation devices, especially in circuit breakers, Residual current circuit breakers and the like are used to provide electrical connection conductors in the form of round conductors, stranded conductors or ribbon cables to the installation device to connect.

Bei üblichen Leitungsschutzschaltern ist eine Anschlußklemme vorgesehen, die einen kastenförmigen Klemmrahmen aufweist, dessen die Klemmschraube aufnehmende Wand durch zwei übereinandergeklappte Stegenden gebildet sind. An den Stegenden sind Vorsprünge vorgesehen, die in die Seitenwände des Klemmrahmens eingedrückt werden, damit der Klemmrahmen sich beim Verklemmen nicht verformt, siehe z. B. EP 0 454 019 A1. In conventional circuit breakers, a connection terminal is provided, one has box-shaped clamping frame, the one receiving the clamping screw Wall are formed by two superimposed web ends. On the bridge ends projections are provided which are pressed into the side walls of the clamping frame so that the clamping frame does not deform when jammed, see e.g. B. EP 0 454 019 A1.

Aus der WO 88/07772 ist eine Anschlußklemme vorgesehen, bei der ein im Querschnitt rechteckiges Schmiedeteil vorgesehen ist, das eine Innendurchführung aufweist, die einen Gewindeabschnitt besitzt, in den eine Bolzenschraube eingeschraubt werden kann, wobei als Betätigungswerkzeug beispielsweise ein Innensechskantwerkzeug Verwendung finden kann.From WO 88/07772 a connection terminal is provided, in which a cross section rectangular forged part is provided, which has an inner bushing, the has a threaded section into which a stud screw is screwed can be used as an actuating tool, for example, an Allen key Can be used.

Bei dieser Anordnung ist es nicht möglich, sowohl Rundraht-, Litzenleiter als auch Flachbandleiter anzuschrauben bzw. anzuklemmen.With this arrangement it is not possible to use both round wire and stranded wire Screw on or clamp the ribbon cable.

Aus der DE 196 21 194 A1 ist eine Anschlußklemme der eingangs genannten Art bekannt geworden, die eine zylinderförmigen Klemmkörper aufweist, der an seinem einen Ende ein Innengewinde zur Aufnahme einer Klemmschraube besitzt und darüber hinaus axiale Durchbrüche oder Schlitze an den diametral sich gegenüberliegenden Wandabschnitten aufweist, durch die der Raum zugänglich ist, in dem eine Anklemmung erfolgt.From DE 196 21 194 A1 a terminal of the type mentioned is known become, which has a cylindrical clamp body, which at its one End has an internal thread for receiving a clamping screw and beyond axial openings or slots on the diametrically opposed Has wall sections through which the space is accessible, in which an attachment he follows.

Bei den bekannten Anschlußklemmen drückt sich die Stirnseite der Klemmschraube auf den Leiter, was beim Festklemmen wegen der sich drehenden Klemmschraube insbesondere bei feindrähtigen Leitern zu einer Beschädigung derselben führen kann. Darüber hinaus kann sich der Klemmrahmen bzw. der Klemmkörper verdrehen und dabei ein Drehmoment auf die Klemme ausüben, so daß das Gehäuse des Installationsgerätes, in das die Anschlußklemme eingesetzt wird, aufgeweitet oder gar beschädigt werden kann. Darüber hinaus besteht das Problem, daß die Klemmschraube beim Herausschrauben aus dem Klemmrahmen herausgedreht werden kann. Dabei kann sie Verkippen, wodurch beim Wiederanziehen Probleme entstehen, oder ans Gehäuse stoßen, was ebenfalls zu Beschädigungen führen kann.In the known terminals, the end face of the clamping screw is pressed on the conductor, what when clamping because of the rotating clamping screw This can lead to damage, particularly in the case of fine-stranded conductors. In addition, the clamping frame or the clamping body can twist and exert a torque on the terminal so that the housing of the installation device, into which the connector is inserted, expanded or even damaged can be. In addition, there is the problem that the clamping screw when Unscrewing can be unscrewed from the clamping frame. She can Tilt, which creates problems when tightening again, or on the housing bump, which can also lead to damage.

Aufgabe der Erfindung ist es, eine Anschlußklemme der eingangs genannten Art zu schaffen, bei der eine Beschädigung des Gehäuses sowie ein vollständiges Herausdrehen der Klemmschraube sicher vermieden werden kann.The object of the invention is to provide a terminal of the type mentioned create damage to the housing as well as a complete unscrewing the clamping screw can be safely avoided.

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

Dadurch, daß am inneren Ende der Klemmschraube eine in die Durchbrüche zur axialen Führung eingreifenden Ansätze aufweisende Druckplatte vorgesehen ist, die gegenüber der Klemmschraube drehbar an dieser festgelegt ist, wird zunächst vermieden, daß beim Festklemmen feindrähtiger Leiter diese Leiter beschädigt werden.Characterized in that at the inner end of the clamping screw in the openings for axial Guide plate engaging approaches is provided, the opposite the clamping screw is rotatably attached to this, is initially avoided, that when clamping fine-stranded conductors, these conductors are damaged.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung kann der Innengewindeabschnitt des Klemmkörpers in einem Abstand von der oberen Stirnseite des Klemmkörpers enden, der geringfügig größer ist als der axiale Gewindebereich der Klemmschraube; der Innendurchmesser dieses gewindefreien Abschnittes ist dabei geringfügig größer als der Außendurchmesser der Klemmschraube, so daß nach Herausschrauben der Klemmschraube aus dem Innengewindeabschnitt das Klemmschraubengewinde in den gewindefreien Abschnitt des Klemmkörpers gelangt und dieser die Klemmschraube außerhalb des Innengewindeabschnittes führt.According to a further advantageous embodiment of the invention, the internal thread section of the clamping body at a distance from the upper end face of the Clamping body ends, which is slightly larger than the axial thread area of the Clamping screw; the inside diameter of this thread-free section is included slightly larger than the outside diameter of the clamping screw, so that after unscrewing the clamping screw from the internal thread section the clamping screw thread gets into the thread-free section of the clamping body and this the clamping screw leads outside the internal thread section.

Gemäß einer weiteren Ausgestaltung der Erfindung kann die Länge der die Druckplatte aufnehmenden und führenden Schlitze am Klemmkörper so bemessen sein, daß dann, wenn die Klemmschraube in den gewindefreien Abschnitt des Klemmkörpers gelangt, sich die Druckplatte gegen die betätigungsseitigen Schlitzenden anlegt.According to a further embodiment of the invention, the length of the printing plate receiving and leading slots on the clamp body should be dimensioned so that if the clamping screw gets into the thread-free section of the clamping body, the pressure plate bears against the actuation-side slot ends.

Damit wird erreicht, daß auch bei vollständigem Herausschrauben der Klemmschraube aus dem Innengewinde des Klemmkörpers ein Verkanten der Klemmschraube vermieden wird, so daß beim Wiederanziehen der klemmschraube problemlos ein Eingriff des Außengewindes der klemmschraube in das Innengewinde des Klemmkörpers ermöglicht wird. Dabei wird durch das Anlegen der Druckplatte an die Schlitzenden ein Herausfallen der Klemmschraube verhindert.This ensures that even when the clamping screw is completely unscrewed jamming of the clamping screw is avoided from the internal thread of the clamping body is so that when tightening the clamping screw an intervention of the External thread of the clamping screw in the internal thread of the clamping body allows becomes. When the pressure plate is placed on the slot ends, it will fall out the clamping screw prevented.

Gemäß einer weiteren Ausgestaltung der Erfindung kann gemäß Anspruch 5 die Druckplatte durch einen Nietvorgang an der Klemmschraube festgelegt werden, wobei die Druckplatte relativ zur Klemmschraube drehbar ist. According to a further embodiment of the invention, the Pressure plate are fixed by a riveting process on the clamping screw, whereby the pressure plate is rotatable relative to the clamping screw.

Gemäß einer weiteren Ausgestaltung der Erfindung können das Innengewinde des Klemmkörpers und das Außengewinde der Klemmschraube als Sägezahngewinde ausgebildet sein, wobei gemäß einer weiteren Ausführungsform der Erfindung die etwa radial verlaufende Flanke zur Klemmstelle hingerichtet ist bzw. in Klemmrichtung weist.According to a further embodiment of the invention, the internal thread of the Clamping body and the external thread of the clamping screw as a saw tooth thread be formed, wherein according to a further embodiment of the invention the approximately radially extending flank is directed to the clamping point or points in the clamping direction.

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

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

Es zeigen:

Fig. 1
eine perspektivische Ansicht einer Anschlußklemme,
Fig. 2
die Anschlußklemme gemäß Fig. 1, eingesetzt in eine Hälfte eines Gehäuses für einen Leitungsschutzschalter,
Fig. 3
eine perspektivische Darstellung der Klemmschraube und eines Klemmteiles, und
Fig. 4
eine Längsschnittansicht durch eine Anschlußklemme gemäß Fig. 1, teilweise geschnitten.
Show it:
Fig. 1
a perspective view of a terminal,
Fig. 2
1, inserted into one half of a housing for a circuit breaker,
Fig. 3
a perspective view of the clamping screw and a clamping part, and
Fig. 4
a longitudinal sectional view through a terminal shown in FIG. 1, partially cut.

Die in der Fig. 1 dargestellte Anschlußklemme 10 besitzt einen zylindrischen Klemmkörper 11, der zwei diametral sich gegenüber liegende Schlitze 12, die axial verlaufen, aufweist, von denen lediglich einer der Schlitze sichtbar ist.The connecting terminal 10 shown in FIG. 1 has a cylindrical clamping body 11, the two diametrically opposite slots 12 which run axially, has, of which only one of the slots is visible.

Die Innenfläche des zylindrischen Klemmkörpers 11 besitzt zwischen den Schlitzen 12 auf sich diametral gegenüber liegenden Innenwandabschnitten Innengewindebereiche 13, die durch Eindrücken von außen gebildet sind, was in der Fig. 1 anhand der axial verlaufenden Vertiefung 14 erkennbar ist. In den Innengewindeabschnitt 13, der in Abstand L vom oberen Ende des Klemmkörpers 11 (siehe Fig. 4), abschließt, ist eine Stift-Schraube 15 eingeschraubt, deren inneres Ende einen Fortsatz 16 mit verringertem Durchmesser aufweist, an den sich eine Nietung 17 mit gegenüber dem Vorsprung oder Fortsatz 16 größeren Durchmesser ausschließt, wobei sich in dem Abschnitt zwischen der Klemmschraube 15 und der Nietung 17 eine Druckplatte 18 befindet, welches eine nicht dargestellte Bohrung besitzt, in der die Druckplatte als das Druckstück 18 mittels der Nietung vernietet ist. Das Druckstück 18 greift dabei in die axial verlaufenden Schlitze 12 beidseitig ein, so daß es in den Schlitzen 13 durch deren axiale Längskanten 19, 20 axial geführt ist.The inner surface of the cylindrical clamp body 11 has between the slots 12 internal thread areas on diametrically opposite inner wall sections 13, which are formed by pressing in from the outside, which in FIG. 1 is based on the axial extending recess 14 can be seen. In the internal thread section 13, which is at a distance L from the upper end of the clamping body 11 (see Fig. 4), is a pin screw 15 screwed, the inner end of an extension 16 with a reduced Has a diameter on which there is a rivet 17 with respect to the projection or extension 16 excludes larger diameter, wherein in the section between the clamping screw 15 and the rivet 17 is a pressure plate 18, which has a bore, not shown, in which the pressure plate as the pressure piece 18 is riveted by means of the rivet. The pressure piece 18 engages in the axially extending Slots 12 on both sides, so that it is in the slots 13 by their axial Longitudinal edges 19, 20 is guided axially.

An dem in der Fig. 1 unteren Ende, also an demjenigem Ende, das der Einschraubrichtung entgegengesetzt liegt, besitzt der quer zur Längsachse verlaufende untere Rand 20 eine Lasche 21, die ins Innere des Klemmkörpers 11 eingebogen ist und senkrecht zur Mittelachse des Klemmkörpers verläuft. An den Außenflächen, etwa in einer Linie mit den Vertiefungen 14 für die Innengewindeabschnitte 13, sind axial verlaufende Vorsprünge 23, 24 angeformt, die in entsprechenden Vertiefungen an einem Gehäuse, in das die Klemme 10 eingesetzt ist und z. B. das Gehäuse eines Leitungsschutzschalters oder Fehlerstromschutzschalters sein kann, geführt ist. Dadurch wird ein Mitdrehen des Klemmrahmens beim Anziehen der Klemmschraube verhindert und die Kraft definiert in das Gehäuse eingeleitet und ein Auseinanderklaffen verhindert.At the lower end in FIG. 1, that is, at the end that corresponds to the screwing direction is opposite, the lower one runs transversely to the longitudinal axis Edge 20 a tab 21 which is bent into the interior of the clamping body 11 and runs perpendicular to the central axis of the clamping body. On the outer surfaces, approximately in a line with the recesses 14 for the internal thread sections 13 are axially extending Projections 23, 24 formed on a corresponding in recesses Housing in which the terminal 10 is inserted and z. B. the housing of a circuit breaker or residual current circuit breaker. This will prevents the clamping frame from turning when the clamping screw is tightened and the force is introduced into the housing in a defined manner and prevents a gaping apart.

In den Zwischenraum zwischen den Längskanten 19 und 20 ist ein Klemmstück 25 eingesetzt, welches U-förmig ausgebildet ist und zwei quer zur Mittelachse des Klemmkörpers 11 verlaufende Schenkel 26 und 27 besitzt, wobei an dem Schenkel 26 senkrecht zu diesem und parallel zur Mittelachse des Klemmkörpers 11 eine Anschlußlasche 28 angeformt ist, an der Anschlußelemente für im Inneren des Installationsgerätes befindliche Komponenten befestigt sind. Zwischen den beiden Schenkeln 26 und 27 befindet sich ein Druckelement 29, damit die beiden Schenkel 26 und 27 beim Festziehen der Klemmschraube nicht aufeinander zu verformen. A clamping piece 25 is inserted into the space between the longitudinal edges 19 and 20, which is U-shaped and two transverse to the central axis of the clamping body 11 extending legs 26 and 27, being perpendicular to the leg 26 to this and parallel to the central axis of the clamping body 11, a connecting tab 28 is integrally formed on the connection elements for inside the installation device components are attached. Between the two legs 26 and 27 there is a pressure element 29 so that the two legs 26 and 27 when tightening not deform the clamping screw towards each other.

Auf der oberen Seite des Schenkel 26 befindet sich eine quer zum Schenkel 26 verlaufende Leiste 30, und an der dem Schenkel 26 zugewandten Seite des Druckstückes 18 zwei dazu parallele Druckstückleisten 31, 32, die quer zum Verlauf eines eingeführten Leitungsdrahtes angeordnet sind und auf diese Weise ein Herausziehen des Leitungsdrahtes verhindern. In Fig. 3 ist auch ersichtlich der Randbord 17 zur Fixierung der Schraube 15.On the upper side of the leg 26 there is one that runs transversely to the leg 26 Bar 30, and on the leg 26 facing side of the pressure piece 18 two parallel pressure piece strips 31, 32, which are inserted transversely to the course of an Lead wire are arranged and in this way pulling out the lead wire prevent. 3 shows the rim 17 for fixing the screw 15.

In Fig. 4 ist nun ein Teil des Klemmkörpers 11 dargestellt, bei dem ersichtlich ist, daß der Innengewindeabschnitt 13 in dem Abstand L von der oberen Stirnfläche endet, so daß an der Innenfläche des Klemmkörpers ein gewindefreier Abschnitt 33 vorgesehen ist, dessen Innendurchmesser bis hin zum Rand des Klemmkörpers dem Außendurchmesser der Schraube 15 entspricht, so daß in diesem Abschnitt die Schraube 15 geführt ist. Damit wird erreicht, daß beim Wiedereindrehen der Schraube 15 das Außengewinde der Schraube 15 sofort mit dem Innengewinde 13 kämmt. Beim Herausdrehen der Klemmschraube läuft die Klemmschraube aus dem Innengewinde des klemmkörpers heraus, bevor die Druckplatte an den Rahmen anstößt, und die Druckplatte dient dazu, ein Herausfallen der Klemmschraube zu verhindern.In Fig. 4, a part of the clamp body 11 is now shown, in which it can be seen that the internal thread section 13 ends at the distance L from the upper end face, so that a thread-free section 33 is provided on the inner surface of the clamping body is whose inner diameter up to the edge of the clamping body is the outer diameter corresponds to the screw 15, so that the screw 15 is guided in this section is. This ensures that when the screw 15 is screwed in again, the external thread the screw 15 immediately meshes with the internal thread 13. When unscrewing the clamping screw runs the clamping screw out of the internal thread of the clamping body out before the pressure plate hits the frame and the pressure plate serves to prevent the clamping screw from falling out.

Die Fig. 2 zeigt den Einbau der klemmschraube 10 in ein Gehäuseteil 40, das mit einem entsprechenden schalenförmigen Gehäuseteil (nicht gezeigt) zu einem Leitungsschutzschaltergehäuse ergänzt wird. Dieses Gehäuseteil 40 besitzt einen klemmenaufnahmeraum 41, dessen Länge und Innendurchmesser der Anschlußklemme 10 angepaßt ist. Von der Frontseite 62 her besitzt das Gehäuse 40 eine kreisförmige Öffnung 43, durch die ein Werkzeug zu der Schraube 15 hindurch geführt werden kann. Auf den sogenannten Schmalseitenflächen 44 des Gehäuseteils sind Durchbrechungen 45 und 46 vorgesehen, durch die in Pfeilrichtung P1 bzw. P2 Anschlußleiter zur Klemmschraube eingeführt werden können. Dabei ist die Anordnung so gewählt, daß durch den Durchbruch 46 eine Anschlußfahne für eine Sammelschiene einführbar ist, wogegen durch den Durchbruch 45 ein Runddraht oder Litzendraht angeschlossen werden kann. Fig. 2 shows the installation of the clamping screw 10 in a housing part 40, which with a corresponding shell-shaped housing part (not shown) to a circuit breaker housing is added. This housing part 40 has a terminal receiving space 41, the length and inner diameter of the terminal 10 adapted is. The housing 40 has a circular opening from the front side 62 43, through which a tool can be passed to the screw 15. On the So-called narrow side surfaces 44 of the housing part are openings 45 and 46 provided by the connecting conductor to the clamping screw in the direction of arrow P1 or P2 can be introduced. The arrangement is chosen so that the opening 46 a terminal lug for a busbar can be inserted, whereas a round wire or stranded wire can be connected through the opening 45 can.

Das Gehäuseteil 40 wird ergänzt durch ein gleich ausgebildetes Gehäuseteil, bei dem die in der Fig. 2 dargestellten Hälften der Durchbrüche 43, 45 und 46 zu "geschlossenen" Durchbrüchen ergänzt werden, so daß sich im montierten Zustand eine kreisförmige Öffnung 43, eine rechteck-förmige Öffnung 45 und eine rechteck-förmige Öffnung 46 ergeben.The housing part 40 is supplemented by an identically designed housing part in which the halves of the openings 43, 45 and 46 shown in FIG "Closed" breakthroughs are added, so that in the assembled state a circular opening 43, a rectangular opening 45 and a rectangular one Opening 46 result.

Claims (8)

Anschlußklemme für ein elektrisches Installationsgerät, insbesondere für einen Leitungs- oder Fehlerstromschutzschalter oder dergleichen, mit einem zylindrischen Klemmkörper (11) der an diametral gegenüber liegenden Mantelflächen sich gegenüber liegende axiale Schlitze aufweist, mit einer Klemmenschraube und einem Klemmstück, das in die Durchbrüche einfügbar ist, so daß zwischen der Klemmschraube und dem Klemmstück und zwischen dem Klemmstück und dem benachbarten quer zur Mittelachse des Klemmkörpers verlaufenden Rand der Schlitze je wenigstens ein Leiter festklemmbar ist, dadurch gekennzeichnet, daß am inneren Ende der Klemmschraube (15) eine in die Schlitze zur axialen Führung eingreifende Ansätze aufweisende Druckplatte (18) drehbar gegenüber der Klemmschraube (15) festgelegt ist.Terminal for an electrical installation device, in particular for a line or residual current circuit breaker or the like, with a cylindrical clamping body (11) which has axial slots lying opposite one another on diametrically opposite lateral surfaces, with a clamping screw and a clamping piece which can be inserted into the openings, so that at least one conductor can be clamped between the clamping screw and the clamping piece and between the clamping piece and the adjacent edge of the slots running transversely to the central axis of the clamping body, characterized in that at the inner end of the clamping screw (15) one in the slots for axial guidance engaging approaches having pressure plate (18) is rotatably fixed relative to the clamping screw (15). Anschlußklemme nach Anspruch 1, dadurch gekennzeichnet, daß der Innengewindeabschnitt (13) des Klemmkörpers (11) in einem Abstand (L) von der betätigungsseitigen Stirnseite des Klemmkörpers endet, der etwa so groß ist wie der axiale Gewindebereich der Klemmschraube (15) oder auch kleiner, und daß der Innendurchmesser des gewindefreien Abschnittes geringfügig größer ist als der Außendurchmesser der Klemmschraube (15), so daß der gewindefreie Abschnitt die Klemmschraube (15), so daß nach Herausschrauben der Klemmschraube aus dem Innengewindeabschnitt das Klemmschraubengewinde in den gewindefreien Abschnitt des Klemmkörpers gelangt und dieser die Klemmschraube (15) außerhalb des Innengewindeabschnittes führt.Terminal according to claim 1, characterized in that the internal thread section (13) of the clamping body (11) at a distance (L) from the actuation side End of the clamping body ends, which is approximately as large as the axial Thread area of the clamping screw (15) or smaller, and that the inner diameter of the thread-free section is slightly larger than the outer diameter the clamping screw (15) so that the thread-free section is the clamping screw (15), so that after unscrewing the clamping screw from the internal thread section the clamping screw thread in the thread-free section of the clamping body arrives and this the clamping screw (15) outside the internal thread section leads. Anschlußklemme nach Anspruche 2, dadurch gekennzeichnet, daß die Länge der die Druckplatte aufnehmenden und führenden Schlitze so bemessen ist, daß dann, wenn die Klemmschraube in den gewindefreien Abschnitt gelangt, sich die Druckplatte gegen die Betätigungsseitenschlitzenden anlegen kann, so daß ein Herausfallen der Klemmschraube mit Druckplatte verhindert wird. Terminal according to claim 2, characterized in that the length of the slots receiving and guiding the pressure plate is dimensioned such that when the clamping screw gets into the thread-free section, the pressure plate can create against the actuating side slit ends, so that the Clamping screw with pressure plate is prevented. Anschlußklemme nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß an einem der Betätigungsseite entgegengesetzt liegenden Rand eines der Schlitze eine Lasche (22) angeformt und in den klemmkörper hinein gebogen ist, so daß sie senkrecht zur Längsachse des Klemmkörpers (11) verläuft und als Gegenlager für anzuklemmende Leiter dient.Terminal according to one of claims 1 to 3, characterized in that that on an edge opposite the actuating side of one of the Slots formed on a tab (22) and bent into the clamping body, see above that it runs perpendicular to the longitudinal axis of the clamping body (11) and as a counter bearing for conductors to be connected. Anschlußklemme nach einem der vorigen Ansprüche, dadurch gekennzeichnet, daß die Schraube einen Fortsatz mit geringerem Durchmesser aufweist, an den sich ein Nietfortsatz mit größerem Durchmesser anschließt, und daß die Druckplatte (18) mit ihrem Innenloch den Fortsatz mit geringerem Durchmesser umfaßt und damit vernietet ist.Terminal according to one of the preceding claims, characterized in that that the screw has an extension with a smaller diameter to the followed by a rivet extension with a larger diameter, and that the pressure plate (18) with its inner hole comprises the extension with a smaller diameter and thus is riveted. Anschlußkleme nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Innengewinde des Klemmkörpers und das Außengewinde der Klemmschraube ein Sägezahngewinde ist.Terminal block according to one of the preceding claims, characterized in that that the internal thread of the clamping body and the external thread of the clamping screw is a sawtooth thread. Anschlußklemme nach Anspruch 6, dadurch gekennzeichnet, daß die etwa radial verlaufenden Flanken zur Klemmstelle hingerichtet sind bzw. in Klemmrichtung weisen.Terminal according to claim 6, characterized in that the approximately radially extending flanks are executed towards the clamping point or in the clamping direction point. Anschlußklemme nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß auf der Außenseite des Klemmkörpers diametral sich gegenüberliegende leistenartige Anformunen angebracht sind, die in entsprechende Ausnehmungen des Gehäuses, in das die Anschlußklemme einsetzbar ist, eingreifen und so den Klemmkörper führen.Terminal according to one of the preceding claims, characterized in that that on the outside of the clamp body diametrically opposite strip-like formations are attached, which in corresponding recesses of the Enclose housing, in which the connecting terminal can be inserted, and thus the clamping body to lead.
EP00101254A 1999-02-10 2000-01-25 Connecting terminal for an electrical apparatus Expired - Lifetime EP1028488B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19905443 1999-02-10
DE19905443A DE19905443A1 (en) 1999-02-10 1999-02-10 Terminal for an electrical installation device

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EP1028488A1 true EP1028488A1 (en) 2000-08-16
EP1028488B1 EP1028488B1 (en) 2007-03-21

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EP00101254A Expired - Lifetime EP1028488B1 (en) 1999-02-10 2000-01-25 Connecting terminal for an electrical apparatus

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EP (1) EP1028488B1 (en)
AT (1) ATE357754T1 (en)
DE (2) DE19905443A1 (en)
SG (1) SG80667A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2003041226A1 (en) * 2001-11-06 2003-05-15 Abb Service S.R.L. Terminal for low voltage modular device
EP1916741A1 (en) 2006-10-28 2008-04-30 ABB PATENT GmbH Installation switching device and terminal clamp therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022105130U1 (en) 2022-09-12 2022-11-29 Rolf Arnold Modular system for forming an electrical distributor arrangement, distributor terminal module of such a modular system and electrical distributor arrangement

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US2205322A (en) * 1938-01-08 1940-06-18 Thomas & Betts Corp Solderless wire connector
DE9406108U1 (en) * 1994-04-13 1994-06-16 Kloeckner Moeller Gmbh Box clamp for electrical devices
FR2724062A1 (en) * 1994-08-26 1996-03-01 Soule Sa Electrical connector for connecting low voltage rigid cable to electrical equipment
EP0809325A1 (en) * 1996-05-25 1997-11-26 ABBPATENT GmbH Electrical installation device with clamping terminal for the device

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CH88957A (en) * 1920-04-15 1921-08-01 Scintilla Ag Wire clamp for low voltage systems.
DE726189C (en) * 1940-07-25 1942-10-08 Franz Altmannsberger Screw slot clamp for electrical cables with cable entry slots closed at the top and bottom and an I-shaped floor bar serving as a cable support
IT1203858B (en) * 1987-04-03 1989-02-23 Eleco Italiana Srl ELECTRIC JUNCTION OF DERIVATION
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DE4013225B4 (en) * 1990-04-26 2004-02-19 Abb Patent Gmbh screw terminal
DE4102581C2 (en) * 1991-01-29 1994-03-17 Siemens Ag Terminal block

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US2205322A (en) * 1938-01-08 1940-06-18 Thomas & Betts Corp Solderless wire connector
DE9406108U1 (en) * 1994-04-13 1994-06-16 Kloeckner Moeller Gmbh Box clamp for electrical devices
FR2724062A1 (en) * 1994-08-26 1996-03-01 Soule Sa Electrical connector for connecting low voltage rigid cable to electrical equipment
EP0809325A1 (en) * 1996-05-25 1997-11-26 ABBPATENT GmbH Electrical installation device with clamping terminal for the device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041226A1 (en) * 2001-11-06 2003-05-15 Abb Service S.R.L. Terminal for low voltage modular 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
DE19905443A1 (en) 2000-08-17
SG80667A1 (en) 2001-05-22
ATE357754T1 (en) 2007-04-15
EP1028488B1 (en) 2007-03-21
DE50014171D1 (en) 2007-05-03

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