EP0525457B1 - Insulation displacement contact terminal - Google Patents

Insulation displacement contact terminal Download PDF

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Publication number
EP0525457B1
EP0525457B1 EP92111624A EP92111624A EP0525457B1 EP 0525457 B1 EP0525457 B1 EP 0525457B1 EP 92111624 A EP92111624 A EP 92111624A EP 92111624 A EP92111624 A EP 92111624A EP 0525457 B1 EP0525457 B1 EP 0525457B1
Authority
EP
European Patent Office
Prior art keywords
contact
slot
insulation displacement
legs
spring material
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
EP92111624A
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German (de)
French (fr)
Other versions
EP0525457A3 (en
EP0525457A2 (en
Inventor
Andrzej Dipl-Ing. Janczak
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
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Publication of EP0525457A2 publication Critical patent/EP0525457A2/en
Publication of EP0525457A3 publication Critical patent/EP0525457A3/en
Application granted granted Critical
Publication of EP0525457B1 publication Critical patent/EP0525457B1/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
    • H01R4/242—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 being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/16—Connectors or connections adapted for particular applications for telephony

Definitions

  • the invention relates to an insulation displacement contact element for stripping-free connection of electrical conductors, in particular in telecommunications and data technology, made of metallic leaf spring material with two separate contact legs rigidly interconnected at one end along the contact slot.
  • An insulation displacement contact element of the generic type is previously known from DE 33 11 447 A1.
  • the contact limbs delimiting the contact slot are interlaced with one another, so that an additional torsional force acts on the actual clamping point.
  • the disadvantage here is that an acute-angled, V-shaped contact slot is formed by interlacing the two contact legs against each other is, which due to its different widths in the longitudinal direction of the contact slot no uniform contacting when connecting electrical conductors, especially very thin wires or strands, allows.
  • the bend in the two contact legs and thus the opening of the contact slot becomes greater the deeper the electrical conductor is pressed into the contact slot.
  • the opening width of the contact slot in the entrance area depends on the length of the contact slot and the greater the longer the length of the contact slot.
  • there is a relatively large bending of the contact limbs when electrical conductors are connected as a result of which relatively large forces act on the housing receiving the insulation displacement contact element. These forces are increased by the additional torsional force that occurs.
  • connection element which is provided with three or more prongs between which postage indicia are provided.
  • the frankings have different widths in order to connect different cable core diameters.
  • the formation of V-shaped contact slots results in a relatively large bending of the contact legs when the cable wires are connected, with relatively large forces being generated.
  • the invention is therefore based on the object of improving an insulation displacement contact element of the generic type in such a way that there is a relatively uniform contact force for connecting electrical conductors over the entire length of the contact slot.
  • the invention provides that the contact legs are each shifted by about half the material thickness of the leaf spring material to the front and rear thereof, the contact edges of the contact legs delimiting the contact slot being arranged parallel to one another over their entire length.
  • a uniform width of the contact slot is achieved over its entire length, the width of the contact slot being in the range from 0 to 0.05 mm.
  • the contact legs are each twisted relative to one another by about half the material thickness of the leaf spring material, the contact edges of the contact legs delimiting the contact slot being arranged parallel to one another over their entire length. This also results in an extremely small width of the contact slot, so that very thin wires or strands can be safely connected as electrical conductors. Greater stiffness of the insulation displacement contact element is also achieved without forces acting on the housing receiving the insulation displacement contact element.
  • the insulation displacement contact element 1 for the stripping-free connection of electrical conductors 2, in particular very thin wires and strands of telecommunications and data technology, consists of a metallic leaf spring material of thickness D, which, through a contact slot 3 extending over part of the total length, in two contact legs 4, 5 is divided, which are rigidly connected to one another with a common end part 6.
  • the contact slot 3 extends from the bottom of the stepped, approximately V-shaped entrance area 7 to the upper end of an oval relief opening 8 in the transition area of the two contact legs 4, 5 to the end part 6.
  • the insulation displacement contact element 1 shown in FIG a punching process is produced, in which the input area 7, the contact slot 3 and the relief opening 8 are formed.
  • the contact legs 4, 5 are each shifted by half the material thickness D of the leaf spring material to its front and rear sides 9, 10, the contact edges 11 of both contact legs delimiting the contact slot 3 4, 5 are aligned parallel to each other over their entire length.
  • the two contact legs 4, 5 are in the area of the relief opening 8 to the front or. Back 9, 10 of the insulation displacement contact element 1 displaced, resulting in displacement zones 12 which lie approximately in the central longitudinal region of the relief opening 8.
  • the insulation displacement contact element 1 enables the reliable contacting of copper wires with a diameter of 0.25 to 0.90 mm and also the secure contacting of stranded wires.
  • the insulation displacement contact element 1 can be used as a fork contact or as an angle contact, the angle of the plane of the insulation displacement contact element 1 relative to the conductor 2 being between 30 ° and 60 °.
  • FIG. 2 shows the most common contact position of 45 ° between the insulation displacement contact element 1 and the conductor 2.
  • FIG. 3 shows various possible contact positions with angles between 90 ° and 30 ° for different purposes. It is essential that the parallelism of the contact legs 4, 5 to one another is maintained for all purposes.
  • FIG. 4 shows the second embodiment of the insulation displacement contact element 1 ', which has a contact slot 3' with these limiting contact legs 4 ', 5' and an end part 6 'rigidly connected to the latter.
  • the entrance area 7 and the relief opening 8 are present in the same way as in the embodiment according to FIGS. 1 to 3.
  • the contact legs 4 ', 5' are each twisted against each other by half the material thickness D of the leaf spring material, the contact edges 11 'of the contact legs 4', 5 'delimiting the contact slot 3' being arranged parallel to one another over their entire length.
  • the contact legs 4 ', 5' over their entire length with respect to the end part 6 'in the direction rotated on the front and back 9, 10, as can be seen in the top view in FIG. 4c.
  • a shift of the contact legs 4 ', 5' against each other does not take place.
  • the twisting zone 13 lies in the region of the relief opening 8, as shown in FIG. 4a.
  • 5 shows the connection of a conductor 2 to the contact legs 4 ', 5' of an insulation displacement contact element 1 'in the second embodiment in the 45 ° position.
  • 6 shows various other possible contact positions between the 90 ° position (fork contact) and the 30 ° position.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Glass Compositions (AREA)
  • Multi-Conductor Connections (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Scissors And Nippers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Semiconductor Memories (AREA)

Abstract

The invention relates to an insulation-piercing terminal contact element 1 for the insulation-free connection of an electrical conductor 2, especially in telecommunications and data technology, consisting of metallic leaf-spring material having two contact limbs 4, 5, which are separated along the contact slot 3 and are rigidly connected to one another via an end part 6, at their one end. In order to achieve greater stiffness of the insulation-piercing terminal contact element 1 with the contact slot 3 at the same time having a very small width in the quiescent state, the contact limbs 4, 5 are displaced approximately through half the material thickness D of the leaf-spring material to its front and rear side 9, 10, the contact edges 11 of the contact limbs 4, 5, which contact edges bound the contact slot 3, being arranged parallel to one another over their entire length. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Schneidklemm-Kontaktelement zum abisolierfreien Anschluß elektrischer Leiter, insbesondere in der Fernmelde- und Datentechnik, aus metallischem Blattfedermaterial mit zwei entlang des Kontaktschlitzes getrennten, an ihrem einen Ende starr miteinander verbundenen Kontaktschenkeln.The invention relates to an insulation displacement contact element for stripping-free connection of electrical conductors, in particular in telecommunications and data technology, made of metallic leaf spring material with two separate contact legs rigidly interconnected at one end along the contact slot.

Ein Schneidklemm-Kontaktelement der gattungsgemäßen Art ist aus der DE 33 11 447 A1 vorbekannt. Hierbei sind die den Kontaktschlitz begrenzenden Kontaktschenkel gegeneinander verschränkt, so daß eine zusätzliche Torsionskraft auf die eigentliche Klemmstelle wirkt. Nachteilig hierbei ist, daß durch das Verschränken der beiden Kontaktschenkel gegeneinander ein spitzwinkliger, V-förmiger Kontaktschlitz gebildet wird, der aufgrund seiner in Längsrichtung des Kontaktschlitzes unterschiedlichen Weiten keine gleichmäßige Kontaktierung beim Anschluß elektrischer Leiter, insbesondere sehr dünner Drähte oder Litzen, ermöglicht. Die Aufbiegung der beiden Kontaktschenkel und damit die Öffnung des Kontaktschlitzes wird um so größer, je tiefer der elektrische Leiter in den Kontaktschlitz eingedrückt wird. Die Öffnungsweite des Kontaktschlitzes im Eingangsbereich ist abhängig von der Länge des Kontaktschlitzes und um so größer, je größer die Länge des Kontaktschlitzes ist. Schließlich erfolgt eine relativ große Verbiegung der Kontaktschenkel beim Anschluß elektrischer Leiter, wodurch relativ große Kräfte auf das das Schneidklemm-Kontaktelement aufnehmende Gehäuse einwirken. Diese Kräfte werden noch durch die auftretende, zusätzliche Torsionskraft erhöht.An insulation displacement contact element of the generic type is previously known from DE 33 11 447 A1. Here, the contact limbs delimiting the contact slot are interlaced with one another, so that an additional torsional force acts on the actual clamping point. The disadvantage here is that an acute-angled, V-shaped contact slot is formed by interlacing the two contact legs against each other is, which due to its different widths in the longitudinal direction of the contact slot no uniform contacting when connecting electrical conductors, especially very thin wires or strands, allows. The bend in the two contact legs and thus the opening of the contact slot becomes greater the deeper the electrical conductor is pressed into the contact slot. The opening width of the contact slot in the entrance area depends on the length of the contact slot and the greater the longer the length of the contact slot. Finally, there is a relatively large bending of the contact limbs when electrical conductors are connected, as a result of which relatively large forces act on the housing receiving the insulation displacement contact element. These forces are increased by the additional torsional force that occurs.

Aus der GB-A-2210514 ist ein Anschlußelement bekannt, welches mit drei oder mehr Zinken versehen ist, zwischen denen Freimachungen vorgesehen sind. Die Freimachungen weisen unterschiedliche Breiten auf, um unterschiedliche Kabeladerdurchmesser anzuschließen. Durch die Bildung von V-förmigen Kontaktschlitzen erfolgt eine relativ große Verbiegung der Kontaktschenkel beim Anschluß der Kabeladern, wobei relativ große Kräfte entstehen.From GB-A-2210514 a connection element is known which is provided with three or more prongs between which postage indicia are provided. The frankings have different widths in order to connect different cable core diameters. The formation of V-shaped contact slots results in a relatively large bending of the contact legs when the cable wires are connected, with relatively large forces being generated.

Der Erfindung liegt von daher die Aufgabe zugrunde, ein Schneidklemm-Kontaktelement der gattungsgemäßen Art dahingehend zu verbessern, daß eine relativ gleichmäßige Kontaktkraft zum Anschluß elektrischer Leiter über die gesamte Länge des Kontaktschlitzes vorhanden ist.The invention is therefore based on the object of improving an insulation displacement contact element of the generic type in such a way that there is a relatively uniform contact force for connecting electrical conductors over the entire length of the contact slot.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß die Kontaktschenkel jeweils etwa um die Hälfte der Materialstärke des Blattfedermateriales zu dessen Vorder-und Rückseite verschoben sind, wobei die den Kontaktschlitz begrenzenden Kontaktkanten der Kontaktschenkel über ihre gesamte Länge parallel zueinander angeordnet sind. Hierdurch wird eine gleichmäßige Weite des Kontaktschlitzes über dessen gesamte Länge erreicht, wobei die Weite des Kontaktschlitzes im Bereich von 0 bis 0,05 mm liegt. Dies ermöglicht das Kontaktieren von sehr dünnen Drähten und Litzen als elektrische Leiter. Ferner wird eine sehr große Steifigkeit der Schneidklemm-Kontaktelementes erreicht, ohne daß große Kräfte auf das das Schneidklemm-Kontaktelement aufnehmende Gehäuse einwirken. In einer weiteren Ausführungsform sind die Kontaktschenkel jeweils etwa um die Hälfte der Materialstärke des Blattfedermaterials gegeneinander verdreht, wobei die den Kontaktschlitz begrenzenden Kontaktkanten der Kontaktschenkel über ihre gesamte Länge parallel zueinander angeordnet sind. Auch hierdurch wird eine äußerst geringe Weite des Kontaktschlitzes erreicht, so daß sehr dünne Drähte oder Litzen als elektrische Leiter sicher anschließbar sind. Auch wird eine größere Steifigkeit der Schneidklemmen-Kontaktelementes erzielt, ohne daß Kräfte auf das das Schneidklemm-Kontaktelement aufnehmende Gehäuse einwirken.To achieve this object, the invention provides that the contact legs are each shifted by about half the material thickness of the leaf spring material to the front and rear thereof, the contact edges of the contact legs delimiting the contact slot being arranged parallel to one another over their entire length. As a result, a uniform width of the contact slot is achieved over its entire length, the width of the contact slot being in the range from 0 to 0.05 mm. This enables the contact of very thin wires and strands as electrical conductors. Furthermore, a very high rigidity of the insulation displacement contact element is achieved without large forces acting on the insulation displacement contact element act on the receiving housing. In a further embodiment, the contact legs are each twisted relative to one another by about half the material thickness of the leaf spring material, the contact edges of the contact legs delimiting the contact slot being arranged parallel to one another over their entire length. This also results in an extremely small width of the contact slot, so that very thin wires or strands can be safely connected as electrical conductors. Greater stiffness of the insulation displacement contact element is also achieved without forces acting on the housing receiving the insulation displacement contact element.

Die Erfindung ist nachfolgend anhand von zwei Ausführungsformen eines erfindungsgemäßen Schneidklemm-Kontaktelementes näher erläutert. Es zeigen:

Fig. 1
Die erste Ausführungsform des Schneidklemm-Kontaktelementes in Ansicht, Seitenansicht und Draufsicht,
Fig. 2
das Schneidklemm-Kontaktelement gemäß Fig. 1 mit unter 45° angeschlossenem elektrischen Leiter,
Fig. 3
verschiedene mögliche Kontaktstellungen des Schneidklemm-Kontaktelementes gemäß Fig. 1 und 2,
Fig. 4
die zweite Ausführungsform des Schneidklemm-Kontaktelementes in Ansicht, Seitenansicht und Draufsicht,
Fig. 5
das Schneidklemm-Kontaktelement gemäß Fig. 4 mit unter 45° angeschlossenem elektrischen Leiter und
Fig. 6
verschiedene mögliche Kontaktstellungen des Schneidklemm-Kontaktelementes gemäß den Figuren 4 und 5.
The invention is explained in more detail below with reference to two embodiments of an insulation displacement contact element according to the invention. Show it:
Fig. 1
The first embodiment of the insulation displacement contact element in a view, side view and top view,
Fig. 2
1 with an electrical conductor connected at 45 °,
Fig. 3
different possible contact positions of the insulation displacement contact element according to FIGS. 1 and 2,
Fig. 4
the second embodiment of the insulation displacement contact element in view, side view and top view,
Fig. 5
4 with an electrical conductor connected at 45 ° and
Fig. 6
Various possible contact positions of the insulation displacement contact element according to FIGS. 4 and 5.

Das Schneidklemm-Kontaktelement 1 zum abisolierfreien Anschluß elektrischer Leiter 2, insbesondere sehr dünner Drähte und Litzen der Fernmelde-und Datentechnik, besteht aus einem metallischen Blattfedermaterial der Dicke D, das durch einen sich über einen Teil der Gesamtlänge erstreckenden Kontaktschlitz 3 in zwei Kontaktschenkel 4,5 unterteilt ist, die mit einem gemeinsamen Endteil 6 starr miteinander verbunden sind. Der Kontaktschlitz 3 erstreckt sich vom Boden des abgestuften, etwa V-förmigen Eingangsbereich 7 bis zum oberen Ende einer ovalen Entlastungsöffnung 8 im Übergangsbereich der beiden Kontaktschenkel 4, 5 zum Endteil 6. Das in der Figur 1a in Ansicht gezeigte Schneidklemm-Kontaktelement 1 wird durch einen Stanzvorgang hergestellt, bei welchem der Eingangsbereich 7, der Kontaktschlitz 3 und die Entlastungsöffnung 8 ausgebildet werden.The insulation displacement contact element 1 for the stripping-free connection of electrical conductors 2, in particular very thin wires and strands of telecommunications and data technology, consists of a metallic leaf spring material of thickness D, which, through a contact slot 3 extending over part of the total length, in two contact legs 4, 5 is divided, which are rigidly connected to one another with a common end part 6. The contact slot 3 extends from the bottom of the stepped, approximately V-shaped entrance area 7 to the upper end of an oval relief opening 8 in the transition area of the two contact legs 4, 5 to the end part 6. The insulation displacement contact element 1 shown in FIG a punching process is produced, in which the input area 7, the contact slot 3 and the relief opening 8 are formed.

In einem weiteren Arbeitsschritt, der zugleich mit dem Stanzschritt ausgeführt werden kann, werden die Kontaktschenkel 4, 5 jeweils um die Hälfte der Materialstärke D des Blattfedermaterials zu dessen Vorder-und Rückseite 9, 10 verschoben, wobei die den Kontaktschlitz 3 begrenzenden Kontaktkanten 11 beider Kontaktschenkel 4, 5 über ihre gesamte Länge parallel zueinander ausgerichtet werden. Bei diesem Vorgang werden die beiden Kontaktschenkel 4, 5 im Bereich der Entlastungsöffnung 8 zur Vorder-bzw. Rückseite 9, 10 des Schneidklemm-Kontaktelementes 1 verschoben, wobei sich Verschiebezonen 12 ergeben, die etwa im mittleren Längsbereich der Entlastungsöffnung 8 liegen. Durch diese Verschiebung der Kontaktschenkel 4,5 gegeneinander um jeweils die Hälfte der Materialstärke D des Blattfedermateriales wird eine äußerst geringe Weite des Kontaktschlitzes 3 zwischen den Kontaktkanten 11 beider Kontaktschenkel 4, 5 erreicht, die im Bereich von 0 bis 0,05 mm liegt. Demgegenüber sind beim traditionellen Stanzen von Federwerkstoffen für Schneidklemm-Kontaktelemente nur Schlitzweiten erzielbar, die oberhalb des 0,7-fachen der Materialstärke des Federwerkstoffen liegen, die üblicherweise 0,3 bis 0,5 mm beträgt.In a further step, which can be carried out at the same time as the stamping step, the contact legs 4, 5 are each shifted by half the material thickness D of the leaf spring material to its front and rear sides 9, 10, the contact edges 11 of both contact legs delimiting the contact slot 3 4, 5 are aligned parallel to each other over their entire length. During this process, the two contact legs 4, 5 are in the area of the relief opening 8 to the front or. Back 9, 10 of the insulation displacement contact element 1 displaced, resulting in displacement zones 12 which lie approximately in the central longitudinal region of the relief opening 8. This displacement of the contact limbs 4, 5 relative to one another by half the material thickness D of the leaf spring material results in an extremely small width of the contact slot 3 between the contact edges 11 of both contact limbs 4, 5, which is in the range from 0 to 0.05 mm. This contrasts with traditional punching of spring materials for insulation displacement contact elements, only slot widths can be achieved which are above 0.7 times the material thickness of the spring materials, which is usually 0.3 to 0.5 mm.

Das Schneidklemm-Kontaktelement 1 ermöglicht die sichere Kontaktierung von Kupferdrähten von 0,25 bis 0,90 mm Durchmesser und auch das sichere Kontaktieren von Litzendrähten. Das Schneidklemm-Kontaktelement 1 ist als Gabelkontakt oder als Winkelkontakt einsetzbar, wobei der Winkel der Ebene des Schneidklemm-Kontaktelementes 1 gegenüber dem Leiter 2 zwischen 30° und 60 ° liegt.The insulation displacement contact element 1 enables the reliable contacting of copper wires with a diameter of 0.25 to 0.90 mm and also the secure contacting of stranded wires. The insulation displacement contact element 1 can be used as a fork contact or as an angle contact, the angle of the plane of the insulation displacement contact element 1 relative to the conductor 2 being between 30 ° and 60 °.

In der Figur 2 ist die häufigste Kontaktstellung von 45° zwischen dem Schneidklemm-Kontaktelement 1 und dem Leiter 2 dargestellt. Die Figur 3 zeigt verschiedene, mögliche Kontaktstellungen mit Winkeln zwischen 90° und 30° für unterschiedliche Einsatzzwecke. Wesentlich ist, daß bei allen Einsatzzwecken die Parallelität der Kontaktschenkel 4, 5 zueinander erhalten bleibt.FIG. 2 shows the most common contact position of 45 ° between the insulation displacement contact element 1 and the conductor 2. FIG. 3 shows various possible contact positions with angles between 90 ° and 30 ° for different purposes. It is essential that the parallelism of the contact legs 4, 5 to one another is maintained for all purposes.

In der Figur 4 ist die zweite Ausführungsform des Schneidklemm-Kontaktelementes 1' dargestellt, das einen Kontaktschlitz 3' mit diesen begrenzenden Kontaktschenkeln 4', 5' und einen mit diesem starr verbundenen Endteil 6' aufweist. Der Eingangsbereich 7 und die Entlastungsöffnung 8 sind in gleicher Weise wie bei der Ausführungsform gemäß den Figuren 1 bis 3 vorhanden. Im Gegensatz zur ersten Ausführungsform sind die Kontaktschenkel 4', 5' jeweils um die Hälfte der Materialstärke D des Blattfedermaterials gegeneinander verdreht, wobei die den Kontaktschlitz 3' begrenzenden Kontaktkanten 11 der Kontaktschenkel 4', 5' über ihre gesamte Länge parallel zueinander angeordnet sind. Hierzu sind die Kontaktschenkel 4', 5' über ihre gesamte Länge gegenüber dem Endteil 6' in Richtung auf die Vorder-und Rückseite 9,10 verdreht, wie es in Fig. 4c in der Draufsicht ersichtlich ist. Eine Verschiebung der Kontaktschenkel 4', 5' gegeneinander findet nicht statt. Die Verdrehzone 13 liegt im Bereich der Entlastungsöffnung 8, wie es in Fig. 4a dargestellt ist.FIG. 4 shows the second embodiment of the insulation displacement contact element 1 ', which has a contact slot 3' with these limiting contact legs 4 ', 5' and an end part 6 'rigidly connected to the latter. The entrance area 7 and the relief opening 8 are present in the same way as in the embodiment according to FIGS. 1 to 3. In contrast to the first embodiment, the contact legs 4 ', 5' are each twisted against each other by half the material thickness D of the leaf spring material, the contact edges 11 'of the contact legs 4', 5 'delimiting the contact slot 3' being arranged parallel to one another over their entire length. For this purpose, the contact legs 4 ', 5' over their entire length with respect to the end part 6 'in the direction rotated on the front and back 9, 10, as can be seen in the top view in FIG. 4c. A shift of the contact legs 4 ', 5' against each other does not take place. The twisting zone 13 lies in the region of the relief opening 8, as shown in FIG. 4a.

Die Fig. 5 zeigt den Anschluß eines Leiters 2 an die Kontaktschenkel 4', 5' eines Schneidklemm-Kontaktelementes 1' in der zweiten Ausführungsform in 45°-Stellung. Die Fig. 6 zeigt verschiedene weitere mögliche Kontaktstellungen zwischen der 90°- Stellung (Gabelkontakt) und der 30°-Stellung.5 shows the connection of a conductor 2 to the contact legs 4 ', 5' of an insulation displacement contact element 1 'in the second embodiment in the 45 ° position. 6 shows various other possible contact positions between the 90 ° position (fork contact) and the 30 ° position.

Bei beiden Ausführungsformen wird eine große Steifigkeit des Schneidklemm-Kontaktelementes 1,1' erzielt. Es treten nur geringe Kräfte auf, die auf das das Schneidklemm-Kontaktelement 1,1' einspannende Gehäuse einwirken. Die Weite des Kontaktschlitzes 3, 3' ist bei beiden Ausführungsformen im Ruhezustand nahezu Null.In both embodiments, a high rigidity of the insulation displacement contact element 1, 1 'is achieved. Only small forces occur which act on the housing which clamps the insulation displacement contact element 1, 1 '. The width of the contact slot 3, 3 'is almost zero in both embodiments in the idle state.

Claims (2)

  1. An insulation displacement contact element (1) for the stripless termination of electrical conductors, in particular in the communication and data technique, made of metal blade-spring material and comprising two contact legs (4, 5) being separated along the contact slot (3) and being rigidly connected with one another at their end, characterised by that the contact legs (4, 5) are displaced by approximately half the material thickness (D) of the blade-spring material towards the front and rear sides (9, 10) thereof, the contact edges (11) of the contact legs (4, 5) limiting the contact slot (3) being disposed in parallel to one another over their full lengths and the width of the contact slot (3) being in the order of 0 to 0.5 mm in the rest position.
  2. An insulation displacement contact element (1') for the stripless termination of electrical conductors, in particular in the communication and data technique, made of metal blade-spring material and comprising two contact legs (4', 5') being separated along the contact slot (3') and being rigidly connected with one another at their end, characterised by that the contact legs (4', 5') are twisted relative to one another by approximately half the material thickness (D) of the blade-spring material, the contact edges (11) of the contact legs (4', 5') limiting the contact slot (3') being disposed in parallel to one another over their full lengths and the width of the contact slot (3') being in the order of 0 to 0.5 mm in the rest position.
EP92111624A 1991-08-02 1992-07-09 Insulation displacement contact terminal Expired - Lifetime EP0525457B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4126068 1991-08-02
DE4126068A DE4126068C1 (en) 1991-08-02 1991-08-02

Publications (3)

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EP0525457A2 EP0525457A2 (en) 1993-02-03
EP0525457A3 EP0525457A3 (en) 1993-05-26
EP0525457B1 true EP0525457B1 (en) 1996-03-06

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EP92111624A Expired - Lifetime EP0525457B1 (en) 1991-08-02 1992-07-09 Insulation displacement contact terminal

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6837735B1 (en) 1998-05-28 2005-01-04 Tyco Electronics Logistics Ag RF connector with cutting edges

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323286C2 (en) * 1993-07-12 1997-07-03 Quante Ag Insulation displacement contact element and method for producing an insulation displacement contact element
CA2144226C (en) * 1994-03-29 2000-05-16 Andreas Janczak Obliquely-disposed insulation displacement contact
DE19519091C1 (en) * 1995-05-24 1996-06-05 Siemens Ag Insulation displacement clamp for connecting insulated electrical jumper wires
EP1122820B1 (en) 2000-02-04 2002-10-09 Siemens Aktiengesellschaft Insulation displacement contact and connecting terminal
GB2387040B (en) * 2002-03-28 2004-03-10 Wheeler & Clinch Ltd A contact
CN102364753A (en) * 2011-11-24 2012-02-29 刘海涛 Insulation displacement connection terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5637667B2 (en) * 1973-11-22 1981-09-01
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
GB2210514B (en) * 1987-09-17 1992-02-26 Bicc Plc Terminating insulated conductors
AU6504690A (en) * 1989-11-30 1991-06-26 Siemens Aktiengesellschaft Gripping/cutting device for use in connecting individual insulated wires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6837735B1 (en) 1998-05-28 2005-01-04 Tyco Electronics Logistics Ag RF connector with cutting edges

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ATE135142T1 (en) 1996-03-15
DE4126068C1 (en) 1992-12-03
ES2084885T3 (en) 1996-05-16
EP0525457A3 (en) 1993-05-26
DE59205550D1 (en) 1996-04-11
IE78623B1 (en) 1998-02-25
DK0525457T3 (en) 1996-04-01
IE922555A1 (en) 1993-02-10
GR3019244T3 (en) 1996-06-30
EP0525457A2 (en) 1993-02-03

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