EP0267145A2 - Cutting and clamping terminal for an electrical conductor - Google Patents

Cutting and clamping terminal for an electrical conductor Download PDF

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Publication number
EP0267145A2
EP0267145A2 EP87730117A EP87730117A EP0267145A2 EP 0267145 A2 EP0267145 A2 EP 0267145A2 EP 87730117 A EP87730117 A EP 87730117A EP 87730117 A EP87730117 A EP 87730117A EP 0267145 A2 EP0267145 A2 EP 0267145A2
Authority
EP
European Patent Office
Prior art keywords
clamping
conductor
connection element
legs
web
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
EP87730117A
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German (de)
French (fr)
Other versions
EP0267145B1 (en
EP0267145A3 (en
Inventor
Hermann Herfort
Gunter Hegner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADC GmbH
Original Assignee
Krone GmbH
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Filing date
Publication date
Application filed by Krone GmbH filed Critical Krone GmbH
Priority to AT87730117T priority Critical patent/ATE79488T1/en
Publication of EP0267145A2 publication Critical patent/EP0267145A2/en
Publication of EP0267145A3 publication Critical patent/EP0267145A3/en
Application granted granted Critical
Publication of EP0267145B1 publication Critical patent/EP0267145B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
    • H01R4/2462—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the contact members being in a slotted bent configuration, e.g. slotted bight

Definitions

  • the invention relates to an insulation displacement connection element for electrical conductors according to the preamble of claim 1.
  • a further insulation displacement connection element is known from DE-GM 82 02 195, which has clamping legs bent along a transverse axis, which include a cranked middle bar. The inner cutting edges of the clamping legs also lie against the side edges of the central web to form an open clamping slot.
  • the invention is therefore based on the object to provide an insulation displacement connection element of the generic type, in which the contact connection between the connection element and the conductor core is improved, in which there is no risk of reducing the conductor core cross section and the risk of breakage of the conductor core, and in which also the conductor with a very thin conductor core diameter, especially also stranded wire, can be connected.
  • the cutting edges of the two clamping legs and the clamping web surrounded by them do not lie in one plane but in three mutually offset planes, the clamping slot having no air gap .
  • the cutting edges of the two clamping legs and the clamping web form a total of three interfaces in the three different levels with the conductor and its insulation and in particular with the conductor core, so that there is a good contact connection between the connection element and the conductor core, in which the conductor core cross section at the connection point is only slight is reduced in size so that there is no risk of the conductor core breaking.
  • the insulation displacement connection element in particular conductors with a very thin core diameter, including stranded conductors, can also be advantageously connected.
  • the two clamping legs are pivoted out of the clamping web and the conductor is centered by the oblique edges in the middle of the clamping slot, so that the conductor is pressed into the clamping slot between the clamping web and the two clamping legs.
  • the sharp edges of the two clamping legs cut through at two interfaces and the sharp edges of the clamping web at another interface isolate the conductor and contact the conductor core three times, so that an improved contact connection is achieved.
  • the two clamping legs overlap the clamping web by a certain range, so that the insulation displacement connecting element does not have an open clamping slot and, when the conductor is pressed in, all three edges lie against the conductor without an air gap.
  • the middle clamping web has a clamping leg on both side edges on its front and back, which is achieved by the formation of a metal bracket on the front and back of the clamping web.
  • two clamping slots are formed, each of which is delimited by the central clamping web and by two clamping legs.
  • the metal brackets arranged on the front and rear can be formed in one piece from a double metal bracket. This is made from a rectangular stamped part, which has two V-shaped cuts in the center, the tips of which are directed away from each other. The two metal brackets are bent 180 ° to one another centrally along the central transverse axis of the stamped part.
  • the insulation displacement connection element consists of a clamping web 4 molded onto a rectangular base body 18 and of a double metal bracket 1, which are each formed as stamped parts made of electrically conductive metallic material.
  • the clamping web 4 carries an upwardly projecting, central projection 19 which has sharp edges 24 on both sides.
  • One-piece metal brackets 7, 8, which form the one-piece double metal bracket 1 are arranged on the front and rear of the clamping web 4 and its base body 18. This is developed in its development as an essentially rectangular thin plate and has two mutually opposite V-shaped incisions 5, the vertices 6 of which are directed away from one another. Along the central transverse axis 23, the two metal brackets 7, 8 of the double metal bracket 1 are bent at 180 ° to one another in bending points 22. The two metal brackets 7, 8 lie on the front or Back of the clamping web 4 with a little lateral play. The clamping web 4 is thus guided between the two metal brackets 7, 8. The double metal bracket 1 and the base body 18 of the clamping web 4 are connected below one another in an electrically conductive manner below the apex 6 of the V-shaped incision via a spot weld connection 26.
  • the metal bracket 7 arranged on the front side has two clamping legs 2, 12 and the metal bracket 8 arranged on the rear side of the clamping web 4 has two clamping legs 3, 13.
  • the one to the sharp edges 24 of the clamping web 4 directed inner edges of the clamping legs 2, 3; 12, 13 are also designed as sharp edges 15.
  • oblique, sharp edges 25 are formed, which lie opposite the oblique, sharp edges 21 of the clamping web 4.
  • a conductor 14 To connect a conductor 14, it is first inserted into an insertion opening 17 formed above the oblique, sharp edges 21, 25. The conductor 14 is secured in this position by the cable lock 20 against slipping out. With a tool, not shown, the conductor 14 is now pressed into the clamping slot 9 formed between the sharp edges 15, 24. The directed oblique, scratched edges 21, 25 of the clamping web 4 or the clamping legs 2, 3; 12, 13 center the conductor 14 and cut the insulation 11 of the conductor 14 here in three places. The clamping legs 2, 3 and 12, 13 are swung out resiliently. The conductor 14 is now inserted into the clamping slot 9.
  • the conductor core 10 is tripled by the sharp edges 15 of the legs 2, 3; 12, 13 and the sharp edge 24 of the clamping web 4 contacted.
  • the clamping slot 9 delimited by the sharp edges 15, 24 is not tapered in parallel, but is tapered upwards in the direction of the cable securing device 20, so that the conductor 14 is fixed in the clamping slot 9 against slipping out. As a result, shaking movements cannot loosen the clamp connection. An additional position securing (bracket) for the contacting conductor is not necessary.
  • the outer edges of the clamping legs 2, 3; 12, 13 are provided in the region of the transition between the sharp inner edges 25, 15 with blunt V-shaped incisions 16, so as to enable a better distribution of forces from the conductor 14 to the connecting element.
  • connection element consists of the clamping web and two individual metal brackets, which, in contrast to the first embodiment, are not formed from a one-piece double metal bracket.
  • the connection of the two metal brackets to the web takes place at the lower end of the connection element via a spot weld connection and at the upper end via connection elements which can also be formed from spot weld connections with the interposition of spacers between the two metal brackets.

Abstract

A cutting/clamping terminal element for electrical conductors (14) is disclosed including a clamping slot (0) defined between a clamping piece (4) and an elastic clamping leg (2,3; 23, 13) to ensure an improved contact connection, such that even conductors (14) having very thin conductor core diameters, in particular wire strands, can be connected, without the conductor cross section being reduced and without there being a risk of conductor breakage. For this purpose, the clamping piece (4) is provided with clamping legs (2,3; 12,13) arranged on its front and rear sides, said clamping legs overlapping in the position of rest the clamping piece (4) at least in part, such that the sharp edges (15,24) of the two clamping legs (2,3; 12,13) and of the clamping piece (4) cut into the insulation (11) and clamp the core (10) of the conductor (14) in the clamping slot (9) at in total three different positions.

Description

Die Erfindung bezieht sich auf ein Schneidklemm-­Anschlußelement für elektrische Leiter gemäß dem Oberbegriff des Anspruches 1.The invention relates to an insulation displacement connection element for electrical conductors according to the preamble of claim 1.

Aus der DE-PS 21 42 850 ist ein Schneidklemm-An­schlußelement dieser Art mit zwei Klemmschlitzen bekannt. Diese werden außen von den scharfkanti­gen Klemmschenkeln eines federnden Metallbügels und innen von den Flanken eines scharfkantigen Klemm­steges begrenzt. In der Ruhelage, d.h. ohne daß ein Leiter in dem Klemschlitz eigebracht ist, liegen die Klemmschenkel außen an den Seitenkanten des nach einer Seite abgekröpften Klemmsteges an. Beim Ein­drücken eines Leiters in den Klemmschlitz durch­schneiden die scharfkantigen Klemmschenkel und der scharfkantige Klemmsteg die Drahtisolation des Leiters und dringen in den leitenden Kern des Leiters ein.From DE-PS 21 42 850 a insulation displacement connection element of this type with two clamping slots is known. These are delimited on the outside by the sharp-edged clamping legs of a resilient metal bracket and on the inside by the flanks of a sharp-edged clamping web. In the rest position, i.e. without a conductor being inserted in the clamping slot, the clamping limbs lie on the outside on the side edges of the clamping web bent to one side. When a conductor is pressed into the clamping slot, the sharp-edged clamping legs and the sharp-edged clamping web cut through the wire insulation of the conductor and penetrate into the conductive core of the conductor.

Ferner ist aus dem DE-GM 82 02 195 ein weiteres Schneidklemm-Anschlußelement bekannt, das längs einer Querachse umgebogene Klemmschenkel aufweist, die einen abgekröpften Mittelsteg einschließen. Die innen liegenden Schneidkanten der Klemmschenkel liegen hierbei zur Bildung eines offenen Klemm­schlitzes ebenfalls an den Seitenkanten des Mittel­steges an.Furthermore, a further insulation displacement connection element is known from DE-GM 82 02 195, which has clamping legs bent along a transverse axis, which include a cranked middle bar. The inner cutting edges of the clamping legs also lie against the side edges of the central web to form an open clamping slot.

Bei beiden vorbekannten Schneidklemm-Snschlußele­menten wird der Leiterkern beim Eindrücken des Leiters in den Klemmschlitz an zwei gegenüberlie­genden Stellen eingekerbt, wodurch der Leiterkern­querschnitt an der Anschlußstelle erheblich ver­mindert wird, so daß sogar die Gefahr des Bruches des Leiterkernes besteht. Ferner ist es bei den bekannten Anschlußelementen nicht möglich, Leiter mit sehr dünnem Leiterkern anzuschließen, da dessen Durchmesser immer größer sein muß als die Schlitz­weite des Klemmschlitzes. So ist insbesondere das Anschließen von Litzenleiterdraht nicht möglich.In both prior art insulation displacement connection elements, the conductor core is notched when the conductor is pressed into the clamping slot at two opposite points, as a result of which the conductor core cross section is considerably reduced at the connection point, so that there is even a risk of the conductor core breaking. Furthermore, it is not possible in the known connection elements to connect conductors with a very thin conductor core, since its diameter must always be larger than the slot width of the clamping slot. In particular, it is not possible to connect stranded wire.

Der Erfindung liegt von daher die Aufgabe zugrunde, ein Schneidklemm-Anschlußelement der gattungsge­mäßen Art zu schaffen, bei welchem die Kontaktver­bindung zwischen Anschlußelement und Leiterkern ver­bessert ist, bei welchem nicht die Gefahr der Ver­minderung des Leiterkernquerschnittes und die Bruch­gefahr des Leiterkernes besteht und bei dem auch Leiter mit sehr dünnem Leiterkerndurchmesser, ins­besondere auch Litzenleiterdrähte, anschließbar sind.The invention is therefore based on the object to provide an insulation displacement connection element of the generic type, in which the contact connection between the connection element and the conductor core is improved, in which there is no risk of reducing the conductor core cross section and the risk of breakage of the conductor core, and in which also the conductor with a very thin conductor core diameter, especially also stranded wire, can be connected.

Die Lösung dieser Aufgabe ergibt sich aus den kenn­zeichnenden Merkmalen des Paterntanspruches 1. Beim erfindungsgemäßen Schneidklemm-Anschlußelement liegen die Schneidkanten der beiden Klemmschenkel und des von diesen umgebenen Klemmsteges nicht in einer Ebene aneinander, sondern in drei zueinander versetzten Ebenen, wobei der Klemmschlitz keinen Luftspalt aufweist. Die Schneidkanten der beiden Klemmschenkel und des Klemmsteges bilden insgesamt drei in den drei verschiedenen Ebenen liegende Schnittstellen mit dem Leiter und dessen Isolierung und insbesondere mit dem Leiterkern, so daß eine gute Kontaktverbindung zwischen Anschlußelement und Leiterkern besteht, bei welcher der Leiterkern­querschnitt an der Anschlußstelle nur geringfügig verkleinert wird, so daß die Gefahr eines Bruches des Leiterkernes nicht besteht. Mit dem erfindungs­gemäßen Schneidklemm-Anschlußelement lassen sich auch insbesondere Leiter mit sehr dünnem Leiterkern­durchmesser, einschließlich Litzenleiter, mit Vor­teil anschließen. Beim Einführen des anzuschließen­den Leiters in den Klemmschlitz werden die beiden Klemmschenkel vom Klemmsteg ausgeschwenkt und der Leiter durch die schräglaufenden Kanten mittig zum Klemmschlitz zentriert, so daß der Leiter zwischen dem Klemmsteg und den beiden Klemmschenkeln in den Klemmschlitz eingedrückt wird. Hierbei durch­schneiden die scharfen Kanten der beiden Klemm­schenkel an zwei Schnittstellen und die scharfen Kanten des Klemmsteges an einer weiteren Schnitt­stelle die Isolierung des Leiters und kontaktieren den Leiterkern insgesamt dreifach, so daß eine verbesserte Kontaktverbindung erzielt wird. Im Ruhezustand überlappen die beiden Klemmschenkel den Klemmsteg um einen gewissen Bereich, so daß das Schneidklemm-Anschlußelement keinen offenen Klemmschlitz besitzt und beim Eindrücken des Leiters immer alle drei Kanten ohne Luftspalt am Leiter anliegen. In einer bevorzugten Ausführungsform besitzt der mittlere Klemmsteg an beiden Seitenkan­ten auf seiner Vorder- und Rückseite je einen Klemm­schenkel, was durch die Ausbildung jeweils eines Metallbügels auf der Vorder- und Rückseite des Klemmsteges erreicht wird. Hierdurch werden zwei Klemmschlitze gebildet, die jeweils durch den mittle­ren Klemmsteg und durch je zwei Klemmschenkel begrenzt sind. Auch beim Anschluß von zwei Leitern werden somit beide Leiterkerne dreifach eingeschnitten. Die schräg noch oben verlaufenden, sich im Abstand ver­jüngenden scharfen Kanten des Klemmsteges und der Klemmschenkel verhindern ein Herausrutschen des Lei­ters aus dem Klemmschlitz.The solution to this problem results from the characterizing features of patent claim 1. In the insulation displacement connection element according to the invention, the cutting edges of the two clamping legs and the clamping web surrounded by them do not lie in one plane but in three mutually offset planes, the clamping slot having no air gap . The cutting edges of the two clamping legs and the clamping web form a total of three interfaces in the three different levels with the conductor and its insulation and in particular with the conductor core, so that there is a good contact connection between the connection element and the conductor core, in which the conductor core cross section at the connection point is only slight is reduced in size so that there is no risk of the conductor core breaking. With the insulation displacement connection element according to the invention, in particular conductors with a very thin core diameter, including stranded conductors, can also be advantageously connected. When the conductor to be connected is inserted into the clamping slot, the two clamping legs are pivoted out of the clamping web and the conductor is centered by the oblique edges in the middle of the clamping slot, so that the conductor is pressed into the clamping slot between the clamping web and the two clamping legs. Here, the sharp edges of the two clamping legs cut through at two interfaces and the sharp edges of the clamping web at another interface isolate the conductor and contact the conductor core three times, so that an improved contact connection is achieved. in the In the idle state, the two clamping legs overlap the clamping web by a certain range, so that the insulation displacement connecting element does not have an open clamping slot and, when the conductor is pressed in, all three edges lie against the conductor without an air gap. In a preferred embodiment, the middle clamping web has a clamping leg on both side edges on its front and back, which is achieved by the formation of a metal bracket on the front and back of the clamping web. As a result, two clamping slots are formed, each of which is delimited by the central clamping web and by two clamping legs. When connecting two conductors, both conductor cores are cut three times. The sharp edges of the clamping bar and the clamping legs, which run at an angle and taper at a distance, prevent the conductor from slipping out of the clamping slot.

Um eine möglichst kostengünstige Herstellung des Schneidklemm-Anschlußelementes zu ermöglichen, können die auf der Vorder- und Rückseite angeord­neten Metallbügel einstückig aus einem Doppelme­tallbügel ausgebildet sein. Dieser wird aus einem rechteckigen Stanzteil hergestellt, welches mittig zwei V-förmige Einschnitte besitzt, die mit ihren Spitzen voneinander weg gerichtet sind. Mittig entlang der mittleren Querachse des Stanzteiles werden die beiden Metallbügel zueinander um 180° umgebogen.In order to enable the insulation displacement connection element to be produced as inexpensively as possible, the metal brackets arranged on the front and rear can be formed in one piece from a double metal bracket. This is made from a rectangular stamped part, which has two V-shaped cuts in the center, the tips of which are directed away from each other. The two metal brackets are bent 180 ° to one another centrally along the central transverse axis of the stamped part.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention result from the subclaims.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles eines Schneidklemm-Anschlußelementes näher erläutert. Es zeigen:

  • Fig. 1 eine Perspektivansicht mit einem ange­schlossenen Leiter,
  • Fig. 2 eine Perspektivansicht ohne angeschlos­senen Leiter,
  • Fig. 3 eine Vorderansicht ohne den linken vorderen Klemmschenkel,
  • Fig. 4 eine vergrößerte Draufsicht nach Fig. 3,
  • Fig. 5 eine Vorderansicht mit einem angeschlos­senen Leiter,
  • Fig. 6 eine vergrößerte Schnittdarstellung gemäß der Linie A-A in Fig. 5,
  • Fig. 7 eine Vorderansicht des vollständigen Schneidklemm-Anschlußelementes,
  • 8 eine Seitenansicht nach Fig. 7 und
  • 9. eine vergrößerte Schnittdarstellung gemäß der Linie B - B in Fig. 7.
The invention is explained below with reference to an embodiment of an insulation displacement connection element shown in the drawings. Show it:
  • 1 is a perspective view with a connected conductor,
  • 2 is a perspective view without a connected conductor,
  • 3 is a front view without the left front clamping leg,
  • 4 is an enlarged top view of FIG. 3,
  • 5 is a front view with a connected conductor,
  • 6 is an enlarged sectional view along the line AA in Fig. 5,
  • 7 is a front view of the complete insulation displacement connection element,
  • 8 is a side view according to FIGS. 7 and
  • 9. An enlarged sectional view along the line BB in FIG. 7.

Das Schneidklemm-Anschlußelement besteht aus einem, an einen rechteckigen Grundkörper 18 angeformten Klemmsteg 4 und aus einem Doppelmetallbügel 1, welche jeweils als Stanzteile aus elektrisch leit­fähigem metallischen Werkstoff ausgebildet sind. Der Klemmsteg 4 trägt einen nach oben ragenden, mittigen Anstaz 19, der beidseitig scharfe Kanten 24 aufweist. Am oberen Ende des Ansatzes 19 ist eine ovale Leitungssicherung 20 angeordnet, an die sich beidseits jeweils eine schräge, schrafe Kante 21 anschließt.The insulation displacement connection element consists of a clamping web 4 molded onto a rectangular base body 18 and of a double metal bracket 1, which are each formed as stamped parts made of electrically conductive metallic material. The clamping web 4 carries an upwardly projecting, central projection 19 which has sharp edges 24 on both sides. At the upper end of the extension 19 there is an oval line fuse 20, to which an oblique, hatched edge 21 is connected on both sides.

Auf der Vorder- und Rückseite des Klemmsteges 4 und dessen Grundkörper 18 sind jeweils einstückige Metallbügel 7, 8 angeordnet, die den einstückigen Doppelmetallbügel 1 bilden. Dieser ist in seiner Abwickelung als im wesentlichen rechteckige dünne Platte ausgebildet und besitzt innen zwei sich gegenüberliegende V-förmige Einschnitte 5, deren Scheitelpunkte 6 voneinander weg gerichtet sind. Entlang der mittleren Querachse 23 sind die beiden Metallbügel 7, 8 des Doppelmetallbügels 1 in Biege­stellen 22 um jeweils 180° zueinander umgebogen. Die beiden Metallbügel 7, 8 liegen an der Vorder- ­bzw. Rückseite des Klemmsteges 4 mit kleinem seitlichen Spiel an. Der Klemmsteg 4 ist also zwischen den beiden Metallbügeln 7, 8 geführt. Der Doppelmetall­bügel 1 und der Grundkörper 18 des Klemmsteges 4 sind unten unterhalb des Scheitelpunkes 6 des V-förmigen Einschnittes über eine Punkschweißver­bindung 26 elektrisch leitend miteinander verbunden.One-piece metal brackets 7, 8, which form the one-piece double metal bracket 1, are arranged on the front and rear of the clamping web 4 and its base body 18. This is developed in its development as an essentially rectangular thin plate and has two mutually opposite V-shaped incisions 5, the vertices 6 of which are directed away from one another. Along the central transverse axis 23, the two metal brackets 7, 8 of the double metal bracket 1 are bent at 180 ° to one another in bending points 22. The two metal brackets 7, 8 lie on the front or Back of the clamping web 4 with a little lateral play. The clamping web 4 is thus guided between the two metal brackets 7, 8. The double metal bracket 1 and the base body 18 of the clamping web 4 are connected below one another in an electrically conductive manner below the apex 6 of the V-shaped incision via a spot weld connection 26.

Der auf der Vorderseite angeordnete Metallbügel 7 weist zwei Klemmschenkel 2, 12 und der auf der Rückseite des Klemmsteges 4 angeordnete Metall­bügel 8 zwei Klemmschenkel 3, 13 auf. Die zu den scharfen Kanten 24 des Klemmsteges 4 gerichteten Innenkanten der Klemmschenkel 2, 3; 12, 13 sind ebenfalls als scharfe Kanten 15 ausgebildet. Ober­halb dieser scharfen Kanten 15 sind schräge, scharfe Kanten 25 angeformt, die den schrägen, scharfen Kanten 21 des Klemmsteges 4 gegenüberliegen.The metal bracket 7 arranged on the front side has two clamping legs 2, 12 and the metal bracket 8 arranged on the rear side of the clamping web 4 has two clamping legs 3, 13. The one to the sharp edges 24 of the clamping web 4 directed inner edges of the clamping legs 2, 3; 12, 13 are also designed as sharp edges 15. Above these sharp edges 15, oblique, sharp edges 25 are formed, which lie opposite the oblique, sharp edges 21 of the clamping web 4.

Zum Anschließen eines Leiters 14 wird dieser zuerst in eine oberhalb der schrägen, scharfen Kanten 21, 25 gebildete Einführöffnung 17 eingelegt. Der Leiter 14 wird in dieser Position durch die Kabel­sicherung 20 gegen ein Herausrautschen gesichert. Mit einem nicht dargestellten Werkzeug wird der Leiter 14 nun in den zwischen den scharfen Kanten 15, 24 gebildeten Klemmschlitz 9 eingedrückt. Die zueinander gerichteten schrägen, schrafen Kanten 21, 25 des Klemmsteges 4 bzw. der Klemmschenkel 2, 3; 12, 13 zentrieren den Leiter 14 und schneiden die Isolierung 11 des Leiters 14 bereits hier an drei Stellen ein. Die Klemmschenkel 2, 3 bzw. 12, 13 werden hierbei federnd ausgeschwenkt. Der Leiter 14 wird nun in den Klemmschlitz 9 eingeführt. Hier wird der Leiterkern 10 dreifach von den scharfen Kanten 15 der Schenkel 2, 3; 12, 13 und der scharfen Kante 24 des Klemmsteges 4 kontaktiert. Der durch die scharfen Kanten 15, 24 begrenzte Klemmschlitz 9 ist nicht parallel, sondern nach oben in Richtung auf die Kabelsicherung 20 verjüngt ausgebildet, so daß der Leiter 14 im Klemmschlitz 9 gegen ein Herausrutschen fixiert ist. Dadurch können auch Rüttelbewegungen die Klemmverbindung nicht lösen. Eine zusätzliche Lagesicherung (Halterung) für den kontaktierenden Leiter ist nicht erforderlich.To connect a conductor 14, it is first inserted into an insertion opening 17 formed above the oblique, sharp edges 21, 25. The conductor 14 is secured in this position by the cable lock 20 against slipping out. With a tool, not shown, the conductor 14 is now pressed into the clamping slot 9 formed between the sharp edges 15, 24. The directed oblique, scratched edges 21, 25 of the clamping web 4 or the clamping legs 2, 3; 12, 13 center the conductor 14 and cut the insulation 11 of the conductor 14 here in three places. The clamping legs 2, 3 and 12, 13 are swung out resiliently. The conductor 14 is now inserted into the clamping slot 9. Here, the conductor core 10 is tripled by the sharp edges 15 of the legs 2, 3; 12, 13 and the sharp edge 24 of the clamping web 4 contacted. The clamping slot 9 delimited by the sharp edges 15, 24 is not tapered in parallel, but is tapered upwards in the direction of the cable securing device 20, so that the conductor 14 is fixed in the clamping slot 9 against slipping out. As a result, shaking movements cannot loosen the clamp connection. An additional position securing (bracket) for the contacting conductor is not necessary.

Die Außenkanten der Klemmschenkel 2, 3; 12, 13 sind im Bereich des Überganges zwischen den scharfen Innenkanten 25, 15 mit stumpf-V-förmig ausgebildeten Einschnitten 16 versehen, um so eine bessere Kräfte­verteilung vom Leiter 14 auf das Anschlußelement zu ermöglichen.The outer edges of the clamping legs 2, 3; 12, 13 are provided in the region of the transition between the sharp inner edges 25, 15 with blunt V-shaped incisions 16, so as to enable a better distribution of forces from the conductor 14 to the connecting element.

In einem weiteren, nicht dargestellten Ausführungs­beispiel besteht das Anschlußelement aus dem Klemm­steg und aus zwei einzelnen Metallbügeln, die im Gegensatz zum ersten Ausführungsbeispiel nicht aus einem einstückigen Doppelmetallbügel gebildet sind. Die Verbindung der beiden Metallbügel mit dem Steg erfolgt am unteren Ende des Anschlußelementes über eine Punktschweißverbindung und am oberen Ende über Verbindungselemente, welche unter Zwischenlage von Distanzstücken zwischen die beiden Metallbügel auch aus Punktschweißverbindungen gebildet werden können.In a further embodiment, not shown, the connection element consists of the clamping web and two individual metal brackets, which, in contrast to the first embodiment, are not formed from a one-piece double metal bracket. The connection of the two metal brackets to the web takes place at the lower end of the connection element via a spot weld connection and at the upper end via connection elements which can also be formed from spot weld connections with the interposition of spacers between the two metal brackets.

BezugszeichenlisteReference symbol list

  • 1 Doppelmetallbügel1 double metal bracket
  • 2 Klemmschenkel2 clamping legs
  • 3 Klemmschenkel3 clamping legs
  • 4 Klemmsteg4 clamping web
  • 5 Einschnitte5 cuts
  • 6 Scheitelpunkt6 vertex
  • 7 Metallbügel7 metal brackets
  • 8 Metallbügel8 metal brackets
  • 9 Klemmschlitz9 clamping slot
  • 10 Leiterkern10 conductor core
  • 11 Isolierung11 insulation
  • 12 Klemmschenkel12 clamping legs
  • 13 Klemmschenkel13 clamping legs
  • 14 Leiter14 conductors
  • 15 Kante15 edge
  • 16 Einschnitt16 incision
  • 17 Einführöffnung17 insertion opening
  • 18 Grundkörper18 basic body
  • 19 Ansatz19 approach
  • 20 Leitungssicherung20 Line fuse
  • 21 Kante21 edge
  • 22 Biegestelle22 bending point
  • 23 Querachse23 transverse axis
  • 24 Kante24 edge
  • 25 Kante25 edge
  • 26 Punkschweißverbindung26 Spot weld connection

Claims (9)

1. Schneidklemm-Anschlußelement für elektrische Leiter, aus einem Klemmsteg und aus mindestens einem federnden Klemmschenkel sowie einem zwischen diesen gebildeten, durch scharfe Kanten begrenzten Klemmschlitz für den Leiter,
dadurch gekennzeichnet,
daß dem Klemmsteg (4) zwei auf seiner Vorder- und Rückseite angeordnete Klemmschenkel (2, 3; 12, 13) zugeordnet sind und
daß die scharfen Kanten (15, 24) der beiden Klemm­schenkel (2, 3 bzw. 12, 13) und des Klemmsteges (4) die Isolierung (11) einschneiden und den Kern (10) des Leiters (14) im Klemmschlitz (9) an ins­gesamt drei Schnittstellen kontaktieren.1. insulation displacement connection element for electrical conductors, from a clamping web and from at least one resilient clamping leg and a clamping slot for the conductor formed between them and delimited by sharp edges,
characterized,
that the clamping web (4) are arranged on its front and rear clamping legs (2, 3; 12, 13) and
that the sharp edges (15, 24) of the two clamping legs (2, 3 or 12, 13) and the clamping web (4) cut the insulation (11) and the core (10) of the conductor (14) in the clamping slot (9) contact at a total of three interfaces. 2. Schneidklemm-Anschlußelement nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Klemmschenkel (2, 3; 12, 13) den Klemmsteg (4) in der Ruhelage mindestens teilweise überlappen.2. insulation displacement connection element according to claim 1, characterized in that the two clamping legs (2, 3; 12, 13) overlap the clamping web (4) at least partially in the rest position. 3. Schneidklemm-Anschlußelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem Klemmsteg (4) an beiden scharfen Kanten (24) je zwei auf seiner Vorder- und Rückseite angeordnete Klemmschenkel (2, 3 bzw. 12, 13) zugeordnet sind.3. insulation displacement connection element according to claim 1 or 2, characterized in that the clamping web (4) on both sharp edges (24) each have two arranged on its front and rear clamping legs (2, 3 and 12, 13). 4. Schneidklemm-Anschlußelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die beiden Klemmschenkel (2, 12; 3, 13) auf der Vorder- bzw. Rückseite des Klemmsteges (4) jeweils aus einem U-förmigen Metallbügel (7, 8) gebildet sind.4. insulation displacement connection element according to one of claims 1 to 3, characterized in that the two clamping legs (2, 12; 3, 13) on the front or rear of the clamping web (4) each made of a U-shaped metal bracket (7 , 8) are formed. 5. Schneidklemm-Anschlußelement nach Anspruch 4, dadurch gekennzeichnet, daß die beiden Metallbügel (7, 8) einstückig aus einem Doppelmetallbügel (1) gebildet sind.5. insulation displacement connection element according to claim 4, characterized in that the two metal brackets (7, 8) are integrally formed from a double metal bracket (1). 6. Schneidklemm-Anschlußelement nach Anspruch 5, dadurch gekennzeichnet, daß der Doppelmetallbügel (1) aus einem Stanzteil besteht, das mittig entlang der Querachse (23) um 180° umgebogen ist.6. insulation displacement connection element according to claim 5, characterized in that the double metal bracket (1) consists of a stamped part which is bent centrally along the transverse axis (23) by 180 °. 7. Schneidklemm-Anschlußelement Anspruch 4, dadurch gekennzeichnet, daß die beiden Metallbügel (7, 8) und der Klemmsteg (4) am unteren Ende über eine Punktschweißverbindung (26) (26) elektrisch lei­tend miteinander verbunden sind.7. insulation displacement connection element claim 4, characterized in that the two metal brackets (7, 8) and the clamping web (4) at the lower end via a spot weld (26) (26) are electrically connected to each other. 8. Anschlußelement nach Anspruch 4, dadurch ge­kennzeichnet, daß die beiden Metallbügel (7, 8) am oberen Ende ihrer Klemmschenkel (2, 3 bzw. 12, 13) über ein Verbindungselement miteinander verbunden sind.8. Connection element according to claim 4, characterized in that the two metal brackets (7, 8) at the upper end of their clamping legs (2, 3 or 12, 13) are connected to one another via a connecting element. 9. Anschlußelement nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der durch die scharfen Kanten (15, 24) begrenzte Klemmschlitz (9) bei ein­geklemmten Leiterkern (10) in Richtung auf die Ein­führöffnung (17) verjüngt ausgebildet ist.9. Connection element according to one of claims 1 to 8, characterized in that the clamping slot (9) limited by the sharp edges (15, 24) is tapered in the direction of the insertion opening (17) when the conductor core (10) is clamped in.
EP87730117A 1986-11-06 1987-09-30 Cutting and clamping terminal for an electrical conductor Expired - Lifetime EP0267145B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87730117T ATE79488T1 (en) 1986-11-06 1987-09-30 IDC CONNECTION ELEMENT FOR ELECTRICAL CONDUCTORS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637929A DE3637929C1 (en) 1986-11-06 1986-11-06 Insulation displacement connection element for electrical conductors
DE3637929 1986-11-06

Publications (3)

Publication Number Publication Date
EP0267145A2 true EP0267145A2 (en) 1988-05-11
EP0267145A3 EP0267145A3 (en) 1990-01-17
EP0267145B1 EP0267145B1 (en) 1992-08-12

Family

ID=6313368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730117A Expired - Lifetime EP0267145B1 (en) 1986-11-06 1987-09-30 Cutting and clamping terminal for an electrical conductor

Country Status (18)

Country Link
US (1) US4806119A (en)
EP (1) EP0267145B1 (en)
JP (1) JPH0821439B2 (en)
CN (1) CN1010724B (en)
AT (1) ATE79488T1 (en)
AU (1) AU598052B2 (en)
BR (1) BR8705953A (en)
DE (2) DE3637929C1 (en)
DK (1) DK167040B1 (en)
ES (1) ES2033918T3 (en)
FI (1) FI92634C (en)
GR (1) GR3005429T3 (en)
HK (1) HK75893A (en)
IN (1) IN166873B (en)
NO (1) NO170375C (en)
SU (1) SU1724022A3 (en)
UA (1) UA7585A1 (en)
ZA (1) ZA878299B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461307B (en) * 1988-06-01 1990-01-29 Ericsson Telefon Ab L M CONTACT ITEMS WITH A WEAR SIZE PARTY AND TOOLS TO MAKE A DOUBLE CONTACT ITEM
US4948380A (en) * 1989-10-02 1990-08-14 Amp Incorporated Dual contact electrical terminal
DE4137507A1 (en) * 1991-11-14 1993-05-19 Siemens Ag CUTTING CLAMP FOR CONNECTING AN INSULATED CABLEWIRE
FR2782194B1 (en) * 1998-08-07 2003-08-08 Entrelec Sa SELF-STRIPPING CONNECTION DEVICE
DE19944312C1 (en) * 1999-09-15 2001-04-05 Siemens Ag Device for contacting an electrical line, in particular a ribbon cable
AU784125B2 (en) * 2000-12-06 2006-02-09 Robert Bosch Gmbh Connector for an electric motor
WO2006057497A1 (en) * 2004-11-26 2006-06-01 Lg Chem, Ltd. Electrode connector containing plate and battery module employed with the same
WO2011019466A1 (en) * 2009-08-11 2011-02-17 Illinois Tool Works Inc. Insulation displacement terminal system with regulated wire compression

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542219A1 (en) * 1975-09-22 1977-03-31 Aumann Vital L Contact element with serrated prongs for flat cables - forms solder free joint with lead by cutting through insulation material and bending lead
DE3024249A1 (en) * 1980-06-27 1982-01-21 Siemens AG, 1000 Berlin und 8000 München Connector for electric installation wires - has shank with spring arm bent through 90 degrees from other shank in long slot region

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US2694189A (en) * 1953-08-21 1954-11-09 Bell Telephone Labor Inc Solderless wire terminal
DE2131769C3 (en) * 1971-06-25 1979-02-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Clamping element for solderless connection of insulated electrical conductors
DE2142850C3 (en) * 1971-08-26 1974-01-03 Krone Gmbh, 1000 Berlin Electrical clamp connection device for connecting one or more insulated wires to a connection element
JPS5626299Y2 (en) * 1975-06-14 1981-06-22
DE2603151C3 (en) * 1976-01-28 1978-10-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Component for switching and / or isolating strips in distributors for telecommunications systems
DE2643112A1 (en) * 1976-09-24 1978-03-30 Siemens Ag Terminal for connection of wire without insulation stripping - comprises folded flat strip with central slot receiving wire
DE2649098A1 (en) * 1976-10-28 1978-05-03 Siemens Ag CLAMPING ELEMENT FOR STRIP-FREE CONNECTION OF ELECTRICAL LADDERS
JPS5556379A (en) * 1978-10-19 1980-04-25 Yamaichi Electric Mfg Presssfitting connector terminal for coated conductor
US4421374A (en) * 1980-09-05 1983-12-20 Western Electric Company, Inc. Trifurcated insulation-penetrating terminal
DE8202195U1 (en) * 1982-01-29 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Clamping element for the stripping-free connection of electrical conductors
DE3207186C1 (en) * 1982-02-27 1983-08-11 Krone Gmbh, 1000 Berlin Device for producing a solder-free, screw-free and stripping-free LSA-PLUS contact for conductor wires, especially for aluminum and multi-wire copper conductors with different wire diameters
DE3311447A1 (en) * 1983-03-29 1984-10-04 Siemens AG, 1000 Berlin und 8000 München CONNECTING TERMINAL FOR THE STRIP-FREE CONNECTION OF ELECTRICAL LADDERS IN DISTRIBUTORS OF TELECOMMUNICATION SYSTEMS, ESPECIALLY TELEPHONE SYSTEMS
US4527852A (en) * 1983-08-09 1985-07-09 Molex Incorporated Multigauge insulation displacement connector and contacts therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542219A1 (en) * 1975-09-22 1977-03-31 Aumann Vital L Contact element with serrated prongs for flat cables - forms solder free joint with lead by cutting through insulation material and bending lead
DE3024249A1 (en) * 1980-06-27 1982-01-21 Siemens AG, 1000 Berlin und 8000 München Connector for electric installation wires - has shank with spring arm bent through 90 degrees from other shank in long slot region

Also Published As

Publication number Publication date
DK167040B1 (en) 1993-08-16
GR3005429T3 (en) 1993-05-24
NO874397L (en) 1988-05-09
CN87107632A (en) 1988-06-22
DK581787D0 (en) 1987-11-05
US4806119A (en) 1989-02-21
FI92634B (en) 1994-08-31
FI874880A (en) 1988-05-07
DE3781093D1 (en) 1992-09-17
BR8705953A (en) 1988-06-14
NO874397D0 (en) 1987-10-21
NO170375C (en) 1992-10-07
JPS63136478A (en) 1988-06-08
AU598052B2 (en) 1990-06-14
JPH0821439B2 (en) 1996-03-04
HK75893A (en) 1993-08-06
CN1010724B (en) 1990-12-05
EP0267145B1 (en) 1992-08-12
IN166873B (en) 1990-07-28
DE3637929C1 (en) 1988-01-28
FI874880A0 (en) 1987-11-04
DK581787A (en) 1988-05-07
EP0267145A3 (en) 1990-01-17
UA7585A1 (en) 1995-09-29
ATE79488T1 (en) 1992-08-15
NO170375B (en) 1992-06-29
SU1724022A3 (en) 1992-03-30
AU8084187A (en) 1988-05-12
ZA878299B (en) 1988-05-03
ES2033918T3 (en) 1993-04-01
FI92634C (en) 1994-12-12

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