EP1001489B1 - Insulation displacement contact - Google Patents

Insulation displacement contact Download PDF

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Publication number
EP1001489B1
EP1001489B1 EP99121990A EP99121990A EP1001489B1 EP 1001489 B1 EP1001489 B1 EP 1001489B1 EP 99121990 A EP99121990 A EP 99121990A EP 99121990 A EP99121990 A EP 99121990A EP 1001489 B1 EP1001489 B1 EP 1001489B1
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EP
European Patent Office
Prior art keywords
insulation displacement
displacement contact
contact according
side walls
free end
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
EP99121990A
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German (de)
French (fr)
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EP1001489A2 (en
EP1001489A3 (en
Inventor
Gerd Conrad
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Individual
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Individual
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Publication date
Priority claimed from DE1998151956 external-priority patent/DE19851956C2/en
Application filed by Individual filed Critical Individual
Publication of EP1001489A2 publication Critical patent/EP1001489A2/en
Publication of EP1001489A3 publication Critical patent/EP1001489A3/en
Application granted granted Critical
Publication of EP1001489B1 publication Critical patent/EP1001489B1/en
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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

Definitions

  • the invention relates to a insulation displacement contact with two spaced arranged opposite, spring-like clamping legs, each one having free end portion, wherein the free end portions in the direction of each other are angled and a slot for contacting and clamping detention of an electric wire.
  • the invention further relates to an electrical Connecting device for connecting at least two electric wires, having the two such insulation displacement contacts.
  • a generic insulation displacement contact is known from EP 0 247 360 B1, wherein the slot is elongated for holding a wire along the length of a wire profiled portion of a conductive part is formed, which in this area has a hollow polygonal cross section.
  • insulation displacement contact of course also be inexpensive to manufacture, which is both the choice of materials as well as a Mass-based shaping concerns.
  • the object of the invention is therefore to provide a cutting terminal contact and an electrical connection device with two such insulation displacement contacts provide, over the prior art by use advantages in terms of improved clamping and contact capability as well as by particularly favorable Characterize manufacturability.
  • This object is characterized in a generic insulation displacement contact solved that the clamping legs as extensions of two opposing Side walls of a basic body with closed polygonal wall cross-section are formed.
  • the object of the invention is achieved in that two cutting terminal contacts according to the invention in a conductive connection in one Housing are held.
  • both block and terminal blocks will be realized.
  • FIG. 1 to 5 show in different views and sectional views details a cutting terminal contact according to the invention, wherein this in the here described embodiment as part of a in Fig. 6 as a whole
  • electrical connection device e.g., terminal block
  • Fig. 1 to 5 has a generally designated 1 insulation displacement contact four side walls 2, 3, 4 and 5, namely two narrower side walls 2, 4 and two wider side walls 3, 5, which have a rectangular cross-section Form body.
  • adjacent side walls are angled Sections joined together, and one of the side walls is angled through, overlapping lugs 3a and 5a of the adjacent side walls 3 and 5 educated.
  • the entire insulation displacement contact 1 is preferably by punching and Bending a sheet metal blank produced, with the overlapping approaches 3a, 5a for increasing the dimensional stability of the four side walls 2, 3, 4 and 5 existing body positively and non-positively connected are by punching 7 introduced into the parts 3a, 5a with a suitable tool are.
  • punching could also be another connection technique such as spot welding may be provided.
  • FIGS. 1 to 5 further show are in extension of the wider side walls 3 and 5 clamping legs 10, 11 are provided, the free end portions 12 and 13 angled and define a rectilinear slot 15, the opposing, sharp side edges of the free end portions 12 and 13 for contacting, i.e. Cutting the insulation, and for clamping holding an imported serve electrical wire.
  • the slot 15 can widening one of its end portions to the insertion of a wire to facilitate.
  • the angled, free end portions 12 and 13 of the clamping legs are not directly opposite, as clearly shown in particular in FIGS. 1 and 4, but in the extension direction the clamping legs are offset from each other, whereby the effect is achieved that a straight line (i.e., in one of the sidewalls 3 and 5 parallel orientation) inserted wire in the region of the slot easily is angled and thereby enters a modified clamping action.
  • the improved clamping and contact action of the insulation displacement contact of the invention results from the fact that the clamping legs 10 and 11 against the known embodiment of the prior art not by a their Foot points connecting web portion are held, but in one piece by extension the side walls 3 and 5 of a rectangular cross-section main body are formed.
  • the side walls 3 and 5 form due to the one-piece construction together with the side walls 2 and 4 a comparatively rigid Structure, so that the spring characteristics of the clamping legs 10 and 11 practically are determined solely by their dimensions, ie in the present example by the dimensions indicated in Fig. 2 b (width) and l (length).
  • the side walls 3 and 5 take due to the connecting these side walls 2 and 4 at a Deformation only very little part.
  • Fig. 6 shows the structure of a generally designated 17 connecting element with two cutting terminal contacts 1, 1 'according to the invention, for installation in a electrical connection device such as a terminal block provided is.
  • the connecting element 17 consists of two mutually mirror-symmetrically opposed arranged cutting terminal contacts, which - as already in Fig. 1 to 5 indicated - by a U-shaped angled, elongated conductor 16th connected to each other.
  • Fig. 6 clearly shows that both the middle conductor 16 as well as both insulation displacement contacts 1, 1 'from a common, punched out Sheet metal blank are made by folding, wherein the side wall lugs 3a, 5a or 3a ', 5a' are each connected to each other by punching, as far as possible to create a rigid connection.
  • FIG. 7 to 9 show in different views an electrical connection device, in which a connecting element 17 in a preferably made of plastic Housing 20 is held.
  • a connecting element 17 in a preferably made of plastic Housing 20 is held.
  • the housing 20 In rectangular recesses 21, 21 'of the housing 20 are slider-like connection tools 23, 23 'slidably received.
  • each Connection tool is with a passage opening 25 or 25 'for receiving a connecting wire and with an actuating opening 26 or 26 'for insertion a lever or rod-like actuating instrument for longitudinal displacement the connecting tool, wherein the actuating instrument into a recess 28, 28 'is to be performed in the housing 20 provided.
  • Fig. 7 and 8 show in the right part of the illustration in each case the connection tool 23 'in a position in which the passage opening 25' in the actuating direction seen in front of the slot 15 'of the insulation displacement contact 1', so that one to contacting wire through the opening 25 'inserted and the connection tool 23 'by means of a through the opening 26' to the serving as an abutment recess 28 'to be introduced actuating instrument, such as a screwdriver, by pivoting movement to the center of the housing 20, can be moved so that the left in Fig. 7 and 8 each drawn position of the connection tool 23 results.
  • actuating instrument such as a screwdriver
  • connection tool 23 or 23 ' has a profiled section 29 and 29 ', whose cross-section complementary to the hollow cross-section of the remaining between the clamping legs 10, 11 Interspace is designed so that a through the passage opening 25 or 25 'introduced Wire is safely inserted into the slot 15.
  • a second section 30th or 30 ' which is arranged at a distance from the first section 29 or 29' is to the slot forming free end portions 12, 13 of the clamping legs to record in between.
  • a connecting this and the slot by cross web can be arranged. This ensures that even relatively soft wires safely and without excessive deformation will be moved into the slot.
  • FIG. 10 shows a perspective, exploded view of two parts 40, 40 ' a generally designated 17 connecting element, wherein the parts in this Case are identical to each other, while Fig. 11 different views of a single Part 40 and 40 ', and Fig. 12 corresponding views of a connecting element 17 shows in the assembled state.
  • Fig. 10 From Fig. 10 it can be seen that the two parts 40, 40 'by punching and folding are made of two sheet metal sections, with a special advantage the split design shows that at no point a bend of more than 90 ° is necessary, since the closed cross-section of the respective body of the Cutting-clamp contacts 1 only in the assembled state (FIG. 12) by interaction the two parts and their side wall sections 2, 2 'and 3a, 5a' or 5a, 3a 'is formed (Fig. 10).
  • Moderator 42, 42 ' are mutually displaced at the same height in the longitudinal direction.
  • locking tab 44, 44 ' engage in corresponding recesses 46, 46' of the side wall sections 3a, 3a '.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Glass Compositions (AREA)

Abstract

The contact includes two spring-like connecting legs (10,11), the free end sections of which are bent towards each other, defining a slit (15) for holding an electrical wire. The connecting legs are formed as extensions to two opposing sidewalls of a main body with a closed polygonal wall cross-section. The main body may have four sidewalls, each pair of walls lying parallel. An Independent claim is included for electrical connector for at least two wires.

Description

Die Erfindung betrifft einen Schneid-Klemmkontakt mit zwei einander mit Abstand gegenüberstehend angeordneten, federartigen Klemmschenkeln, die jeweils einen freien Endabschnitt aufweisen, wobei die freien Endabschnitte in Richtung zueinander abgewinkelt sind und einen Schlitz zum Kontaktieren und klemmenden Festhalten eines elektrischen Drahts festlegen. Die Erfindung betrifft ferner eine elektrische Verbindungsvorrichtung zum Verbinden von wenigstens zwei elektrischen Drähten, die zwei derartige Schneid-Klemmkontakte aufweist.The invention relates to a insulation displacement contact with two spaced arranged opposite, spring-like clamping legs, each one having free end portion, wherein the free end portions in the direction of each other are angled and a slot for contacting and clamping detention of an electric wire. The invention further relates to an electrical Connecting device for connecting at least two electric wires, having the two such insulation displacement contacts.

Ein gattungsgemäßer Schneid-Klemmkontakt ist aus der EP 0 247 360 B1 bekannt, bei der der Schlitz zum Festhalten eines Drahts langgestreckt über die Länge eines profilierten Abschnitts eines leitenden Teils ausgebildet ist, welches in diesem Bereich einen hohlen polygonalen Querschnitt besitzt.A generic insulation displacement contact is known from EP 0 247 360 B1, wherein the slot is elongated for holding a wire along the length of a wire profiled portion of a conductive part is formed, which in this area has a hollow polygonal cross section.

Dieser Stand der Technik ist dahingehend nachteilig, daß die Feder- bzw. Elastizitätseigenschaften der Klemmschenkel, deren Endabschnitte den Schlitz bilden, nicht allen Anforderungen des Einsatzes in der Praxis genügen. Als wesentliche Forderungen sind hier zu nennen, daß ein Schneid-Klemmkontakt in der Lage sein muß, (1) einen oder mehrere elektrische Drähte aufzunehmen, (2) Drähte unterschiedlichen Querschnitts aufzunehmen, beispielsweise im Bereich von 0,75 mm2 bis 1,5 mm2, wobei darüber hinaus (3) ein oftmaliges Anschließen und Lösen von Drähten möglich sein muß, ohne daß die Kontaktqualität nachläßt. This prior art is disadvantageous in that the spring or elasticity properties of the clamping legs, whose end portions form the slot, do not meet all the requirements of the use in practice. As essential requirements are mentioned here that a insulation displacement contact must be able to (1) receive one or more electrical wires, (2) to accommodate wires of different cross-section, for example in the range of 0.75 mm 2 to 1.5 mm 2 , wherein beyond (3) a frequent connection and disconnection of wires must be possible without the contact quality decreases.

Daneben muß ein vorteilhaft einzusetzender Schneid-Klemmkontakt selbstverständlich auch günstig herzustellen sein, was sowohl die Materialauswahl als auch eine die Massenproduktion berücksichtigende Formgebung betrifft.In addition, an advantageous to be used insulation displacement contact of course also be inexpensive to manufacture, which is both the choice of materials as well as a Mass-based shaping concerns.

Die Aufgabe der Erfindung besteht daher darin, einen Schneid-Klemmkontakt und eine elektrische Verbindungsvorrichtung mit zwei solchen Schneid-Klemmkontakten bereitzustellen, die sich gegenüber dem Stand der Technik durch Gebrauchsvorteile hinsichtlich verbesserter Klemm- und Kontaktfähigkeit sowie durch besonders günstige Herstellbarkeit auszeichnen.The object of the invention is therefore to provide a cutting terminal contact and an electrical connection device with two such insulation displacement contacts provide, over the prior art by use advantages in terms of improved clamping and contact capability as well as by particularly favorable Characterize manufacturability.

Diese Aufgabe wird bei einem gattungsgemäßen Schneid-Klemmkontakt dadurch gelöst, daß die Klemmschenkel als Verlängerungen zweier einander gegenüberstehender Seitenwände eines Grundkörpers mit geschlossen polygonförmigem Wandquerschnitt ausgebildet sind.This object is characterized in a generic insulation displacement contact solved that the clamping legs as extensions of two opposing Side walls of a basic body with closed polygonal wall cross-section are formed.

Durch diese Maßnahme werden ein beim Stand der Technik vorhandener, die unteren, d.h. dem Schlitz gegenüberliegenden Endabschnitte der Klemmschenkel verbindender Stegabschnitt sowie abgewinkelte Verbindungsbereiche zwischen einem derartigen Steg und den Klemmschenkeln eliminiert, so daß diese Teile nicht an einer Durchbiegung teilnehmen und die Elastizität der Anordnung nachteilig beeinflussen können. Das erfindungsgemäße Schneid-Klemmelement ermöglicht dadurch eine definierte Einstellung bzw. Vorgabe von Elastizität und Federeigenschaften und damit der Schneid-, Klemm- und Halteeigenschaften, wobei durch die gegenüber dem Stand der Technik verbesserte konstruktive Ausführung darüber hinaus eine Materialeinsparung erzielt werden kann.
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Schneid-Klemmkontakts sind in Unteransprüchen beschrieben. By this measure, a present in the prior art, the lower, ie the slot opposite end portions of the clamping leg connecting web portion and angled connecting portions between such a web and the clamping legs are eliminated, so that these parts do not participate in a deflection and the elasticity of the arrangement disadvantageous can influence. The cutting-clamping element according to the invention thereby enables a defined setting or specification of elasticity and spring properties and thus the cutting, clamping and holding properties, which in addition to the prior art improved structural design beyond a material savings can be achieved.
Advantageous embodiments of the insulation displacement contact of the invention are described in subclaims.

Hinsichtlich der elektrischen Verbindungsvorrichtung zum Verbinden von wenigstens zwei elektrischen Drähten wird die Aufgabe der Erfindung dadurch gelöst, daß zwei erfindungsgemäße Schneid-Klemmkontakte in leitender Verbindung in einem Gehäuse gehalten sind.With regard to the electrical connection device for connecting at least two electrical wires, the object of the invention is achieved in that two cutting terminal contacts according to the invention in a conductive connection in one Housing are held.

Da eine Abstützung der federnden Klemmschenkel der Schneid-Klemmkontakte durch Gehäuseteile nicht erforderlich ist, können sowohl Block- als auch Reihenklemmen realisiert werden.As a support of the resilient clamping legs of the insulation displacement contacts is not required by housing parts, both block and terminal blocks will be realized.

Vorteilhafte Ausgestaltungen der erfindungsgemäßen Verbindungsvorrichtung sind in Unteransprüchen beschrieben.Advantageous embodiments of the connecting device according to the invention are described in subclaims.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels, wobei auf eine Zeichnung Bezug genommen wird, in der

  • Fig. 1 eine stirnseitige Draufsicht auf einen Schneid-Klemmkontakt nach der vorliegenden Erfindung zeigt,
  • Fig. 2 eine Seitenansicht des Schneid-Klemmkontakts nach Fig. 1 zeigt,
  • Fig. 3 eine Ansicht von oben auf den Schneid-Klemmkontakt nach Fig. 1 zeigt,
  • Fig. 4 eine Schnittansicht entlang Linie IV-IV in Fig. 2 zeigt,
  • Fig. 5 eine Schnittansicht entlang Linie V-V in Fig. 3 zeigt,
  • Fig. 6 eine perspektivische Ansicht eines zwei Schneid-Klemmkontakte aufweisenden Anschlußelements zeigt,
  • Fig. 7 eine teilweise geschnittene Darstellung einer elektrischen Verbindungsvorrichtung unter Verwendung des in Fig. 6 dargestellten Anschlußelements zeigt,
  • Fig. 8 eine Ansicht der Verbindungsvorrichtung in Richtung des Pfeils VIII-VIII in Fig. 7 zeigt,
  • Fig. 9 eine Ansicht der Verbindungsvorrichtung in Richtung des Pfeils IX-IX in Fig. 7 zeigt,
  • Fig. 10 eine perspektivische Ansicht eines zwei Schneid-Klemmkontakte aufweisenden, aus zwei Teilen bestehenden Anschlußelements zeigt,
  • Fig. 11 Seiten- und Stirnansichten sowie eine Draufsicht eines Teils des Anschlußelements nach Fig. 10 zeigt und
  • Fig. 12 Seiten- und Stirnansichten eines zusammengesetzten Anschlußelements nach Fig. 10 und 11 zeigt.
    • Further advantages and features of the invention will become apparent from the following description of a preferred embodiment, reference being made to a drawing in which
  • Fig. 1 shows a frontal plan view of a insulation displacement contact according to the present invention,
  • FIG. 2 shows a side view of the insulation displacement contact of FIG. 1, FIG.
  • FIG. 3 is a top view of the insulation displacement contact of FIG. 1; FIG.
  • Fig. 4 shows a sectional view along line IV-IV in Fig. 2,
  • Fig. 5 shows a sectional view along line VV in Fig. 3,
  • 6 shows a perspective view of a connection element having two insulation displacement contacts,
  • Fig. 7 is a partial sectional view of an electrical connection apparatus using the terminal member shown in Fig. 6;
  • Fig. 8 shows a view of the connecting device in the direction of the arrow VIII-VIII in Fig. 7,
  • 9 shows a view of the connecting device in the direction of the arrow IX-IX in FIG. 7,
  • 10 is a perspective view of a two-terminal connector having two-piece terminal member,
  • Fig. 11 shows side and end views and a plan view of a part of the connecting element according to Fig. 10 and
  • Fig. 12 shows side and end views of a composite connection element according to Figs. 10 and 11.

    • Fig. 1 bis 5 zeigen in unterschiedlichen Ansichten und Schnittdarstellungen Einzelheiten eines erfindungsgemäßen Schneid-Klemmkontakts, wobei dieser in dem hier beschriebenen Ausführungsbeispiel als Teil eines in Fig. 6 im Ganzen dargestellten Anschlußelements anzusehen ist, welches zwei Schneid-Klemmkontakte an einem diese verbindenden Leiterstück aufweist, und wobei das Anschlußelement nach Fig. 6 wiederum Teil einer beispielhaft in Fig. 7 bis 9 dargestellten, elektrischen Verbindungsvorrichtung (z.B. Reihenklemme) ist.Fig. 1 to 5 show in different views and sectional views details a cutting terminal contact according to the invention, wherein this in the here described embodiment as part of a in Fig. 6 as a whole To look at connecting element, which two insulation displacement contacts on a having this connecting conductor piece, and wherein the connecting element of FIG. 6 again part of an example in Fig. 7 to 9 illustrated, electrical connection device (e.g., terminal block).

    Wie aus Fig. 1 bis 5 hervorgeht, weist ein im ganzen mit 1 bezeichneter Schneid-Klemmkontakt vier Seitenwände 2, 3, 4 und 5 auf, nämlich zwei schmalere Seitenwände 2, 4 und zwei breitere Seitenwände 3, 5, die einen im Querschnitt rechteckigen Grundkörper bilden. As is apparent from Fig. 1 to 5, has a generally designated 1 insulation displacement contact four side walls 2, 3, 4 and 5, namely two narrower side walls 2, 4 and two wider side walls 3, 5, which have a rectangular cross-section Form body.

    Wie insbesondere Fig. 3 zeigt, sind benachbarte Seitenwände durch abgewinkelte Abschnitte miteinander verbunden, und eine der Seitenwände ist durch abgewinkelte, einander überlappende Ansätze 3a und 5a der benachbarten Seitenwände 3 und 5 gebildet. Der gesamte Schneid-Klemmkontakt 1 ist bevorzugt durch Ausstanzen und Abkanten eines Blechzuschnitts hergestellt, wobei die einander überlappenden Ansätze 3a, 5a zur Vergrößerung der Formstabilität des aus den vier Seitenwänden 2, 3, 4 und 5 bestehenden Grundkörpers form- und kraftschlüssig miteinander verbunden sind, indem in die Teile 3a, 5a mit einem geeigneten Werkzeug Stanzungen 7 eingebracht sind. Anstelle der Stanzungen könnte auch eine andere Verbindungstechnik wie beispielsweise Punktschweißen vorgesehen sein.As particularly shown in FIG. 3, adjacent side walls are angled Sections joined together, and one of the side walls is angled through, overlapping lugs 3a and 5a of the adjacent side walls 3 and 5 educated. The entire insulation displacement contact 1 is preferably by punching and Bending a sheet metal blank produced, with the overlapping approaches 3a, 5a for increasing the dimensional stability of the four side walls 2, 3, 4 and 5 existing body positively and non-positively connected are by punching 7 introduced into the parts 3a, 5a with a suitable tool are. Instead of punching could also be another connection technique such as spot welding may be provided.

    Wie Fig. 1 bis 5 weiter zeigen, sind in Verlängerung der breiteren Seitenwände 3 und 5 Klemmschenkel 10, 11 vorgesehen, deren freie Endabschnitte 12 und 13 abgewinkelt sind und einen geradlinigen Schlitz 15 festlegen, wobei die einander gegenüberstehenden, scharfen Seitenkanten der freien Endabschnitte 12 und 13 zum Kontaktieren, d.h. Einschneiden der Isolierung, und zum klemmenden Festhalten eines eingeführten elektrischen Drahts dienen. Wie Fig. 3 weiter zeigt, kann der Schlitz 15 an einem seiner Endbereiche keilförmig erweitert sein, um das Einsetzen eines Drahts zu erleichtern.As shown in FIGS. 1 to 5 further show are in extension of the wider side walls 3 and 5 clamping legs 10, 11 are provided, the free end portions 12 and 13 angled and define a rectilinear slot 15, the opposing, sharp side edges of the free end portions 12 and 13 for contacting, i.e. Cutting the insulation, and for clamping holding an imported serve electrical wire. As shown in FIG. 3 further, the slot 15 can widening one of its end portions to the insertion of a wire to facilitate.

    In manchen Anwendungsfällen kann es zweckmäßig sein, wenn sich die abgewinkelten, freien Endabschnitte 12 und 13 der Klemmschenkel nicht unmittelbar gegenüberstehen, wie insbesondere in Fig. 1 und 4 deutlich dargestellt ist, sondern in Erstreckungsrichtung der Klemmschenkel gegeneinander versetzt angeordnet sind, wodurch die Wirkung erzielt wird, daß ein geradlinig (d.h. in einer zu den Seitenwänden 3 und 5 parallelen Orientierung) eingeführter Draht im Bereich des Schlitzes leicht abgewinkelt wird und dadurch eine modifizierte Klemmwirkung eintritt. In some applications, it may be useful if the angled, free end portions 12 and 13 of the clamping legs are not directly opposite, as clearly shown in particular in FIGS. 1 and 4, but in the extension direction the clamping legs are offset from each other, whereby the effect is achieved that a straight line (i.e., in one of the sidewalls 3 and 5 parallel orientation) inserted wire in the region of the slot easily is angled and thereby enters a modified clamping action.

    Die verbesserte Klemm- und Kontaktwirkung des erfindungsgemäßen Schneid-Klemmkontakts ergibt sich daraus, daß die Klemmschenkel 10 bzw. 11 entgegen der bekannten Ausführungsform nach dem Stand der Technik nicht durch einen deren Fußpunkte verbindenden Stegabschnitt gehalten sind, sondern einteilig durch Verlängerung der Seitenwände 3 bzw. 5 eines im Querschnitt rechteckförmigen Grundkörpers gebildet sind. Die Seitenwände 3 und 5 bilden aufgrund der einteiligen Konstruktion zusammen mit den Seitenwänden 2 und 4 eine vergleichsweise starre Struktur, so daß die Federeigenschaften der Klemmschenkel 10 und 11 praktisch ausschließlich durch deren Abmessungen festgelegt sind, also im vorliegenden Beispiel durch die in Fig. 2 angegebenen Maße b (Breite) und l (Länge). Die Seitenwände 3 und 5 nehmen aufgrund der diese verbindenden Seitenwände 2 und 4 an einer Verformung nur sehr wenig teil.The improved clamping and contact action of the insulation displacement contact of the invention results from the fact that the clamping legs 10 and 11 against the known embodiment of the prior art not by a their Foot points connecting web portion are held, but in one piece by extension the side walls 3 and 5 of a rectangular cross-section main body are formed. The side walls 3 and 5 form due to the one-piece construction together with the side walls 2 and 4 a comparatively rigid Structure, so that the spring characteristics of the clamping legs 10 and 11 practically are determined solely by their dimensions, ie in the present example by the dimensions indicated in Fig. 2 b (width) and l (length). The side walls 3 and 5 take due to the connecting these side walls 2 and 4 at a Deformation only very little part.

    Um die Federeigenschaften der Klemmschenkel 10 und 11 zu verändern bzw. gezielt einzustellen, hat man neben der Möglichkeit der Vorgabe von Länge l und Breite b (Fig. 2) noch die Möglichkeit, einen oder beide Klemmschenkel mit Verstärkungssicken zu versehen. Derartige Verstärkungssicken können beispielsweise beim Ausstanzvorgang eingeprägt werden und können über die gesamte Länge l der Klemmschenkel verlaufen. Zur Erhöhung des Biegewiderstands der Klemmschenkel können die Verstärkungssicken auch durchgehend über die jeweilige Seitenwand 3 bzw. 5 weiterlaufen.To change the spring characteristics of the clamping legs 10 and 11 or targeted To set, one has next to the possibility of specifying length l and width b (Fig. 2) nor the possibility of one or both clamping legs with reinforcing beads to provide. Such reinforcing beads can, for example, during the punching process can be embossed and can over the entire length l of the clamping legs run. To increase the bending resistance of the clamping legs can the reinforcing beads also continuously over the respective side wall 3 and 5 respectively continue.

    Fig. 6 zeigt den Aufbau eines im ganzen mit 17 bezeichneten Anschlußelements mit zwei erfindungsgemäßen Schneid-Klemmkontakten 1, 1', das zum Einbau in eine elektrische Verbindungsvorrichtung wie beispielsweise eine Reihenklemme vorgesehen ist. Das Anschlußelement 17 besteht aus zwei einander spiegelsymmetrisch gegenüberstehend angeordneten Schneid-Klemmkontakten, die - wie bereits in Fig. 1 bis 5 angedeutet - durch einen U-förmig abgewinkelten, länglichen Leiter 16 miteinander verbunden sind. Fig. 6 zeigt deutlich, daß sowohl der mittlere Leiter 16 als auch beide Schneid-Klemmkontakte 1, 1' aus einem gemeinsamen, ausgestanzten Blechzuschnitt durch Abkanten hergestellt sind, wobei die Seitenwandansätze 3a, 5a bzw. 3a', 5a' jeweils durch Stanzen miteinander verbunden sind, um eine möglichst starre Verbindung zu schaffen.Fig. 6 shows the structure of a generally designated 17 connecting element with two cutting terminal contacts 1, 1 'according to the invention, for installation in a electrical connection device such as a terminal block provided is. The connecting element 17 consists of two mutually mirror-symmetrically opposed arranged cutting terminal contacts, which - as already in Fig. 1 to 5 indicated - by a U-shaped angled, elongated conductor 16th connected to each other. Fig. 6 clearly shows that both the middle conductor 16 as well as both insulation displacement contacts 1, 1 'from a common, punched out Sheet metal blank are made by folding, wherein the side wall lugs 3a, 5a or 3a ', 5a' are each connected to each other by punching, as far as possible to create a rigid connection.

    Fig. 7 bis 9 zeigen in verschiedenen Ansichten eine elektrische Verbindungsvorrichtung, bei der ein Anschlußelement 17 in einem vorzugsweise aus Kunststoff bestehenden Gehäuse 20 gehalten ist. In rechteckigen Aussparungen 21, 21' des Gehäuses 20 sind schieberartige Anschlußwerkzeuge 23, 23' verschieblich aufgenommen. Jedes Anschlußwerkzeug ist mit einer Durchlaßöffnung 25 bzw. 25' zur Aufnahme eines Anschlußdrahts sowie mit einer Betätigungsöffnung 26 bzw. 26' zum Einführen eines hebel- oder stangenartigen Betätigungsinstruments zur Längsverschiebung des Anschlußwerkzeugs, wobei das Betätigungsinstrument bis in eine Ausnehmung 28, 28' im Gehäuse 20 durchzuführen ist, versehen.7 to 9 show in different views an electrical connection device, in which a connecting element 17 in a preferably made of plastic Housing 20 is held. In rectangular recesses 21, 21 'of the housing 20 are slider-like connection tools 23, 23 'slidably received. each Connection tool is with a passage opening 25 or 25 'for receiving a connecting wire and with an actuating opening 26 or 26 'for insertion a lever or rod-like actuating instrument for longitudinal displacement the connecting tool, wherein the actuating instrument into a recess 28, 28 'is to be performed in the housing 20 provided.

    Fig. 7 und 8 zeigen im rechten Teil der Darstellung jeweils das Anschlußwerkzeug 23' in einer Stellung, in der sich die Durchgangsöffnung 25' in Betätigungsrichtung gesehen vor dem Schlitz 15' des Schneid-Klemmkontakts 1' befindet, so daß ein zu kontaktierender Draht durch die Öffnung 25' eingeführt und das Anschlußwerkzeug 23' mittels eines durch die Öffnung 26' bis in die als Widerlager dienende Ausnehmung 28' einzuführenden Betätigungsinstruments, beispielsweise einen Schraubendreher, durch Schwenkbewegung zur Mitte des Gehäuses 20, bewegt werden kann, so daß die in Fig. 7 und 8 jeweils links gezeichnete Stellung des Anschlußwerkzeugs 23 resultiert.Fig. 7 and 8 show in the right part of the illustration in each case the connection tool 23 'in a position in which the passage opening 25' in the actuating direction seen in front of the slot 15 'of the insulation displacement contact 1', so that one to contacting wire through the opening 25 'inserted and the connection tool 23 'by means of a through the opening 26' to the serving as an abutment recess 28 'to be introduced actuating instrument, such as a screwdriver, by pivoting movement to the center of the housing 20, can be moved so that the left in Fig. 7 and 8 each drawn position of the connection tool 23 results.

    Wie sich aus Fig. 7 weiter entnehmen läßt, weist das Anschlußwerkzeug 23 bzw. 23' einen profilierten Abschnitt 29 bzw. 29' auf, dessen Querschnitt komplementär zu dem hohlen Querschnitt des zwischen den Klemmschenkeln 10, 11 verbleibenden Zwischenraums gestaltet ist, so daß ein durch die Durchlaßöffnung 25 bzw. 25' eingeführter Draht sicher in den Schlitz 15 eingeschoben wird. Weiterhin und dem gleichen Zwecke dienend ist das Anschlußwerkzeug mit einem zweiten Abschnitt 30 bzw. 30' versehen, der mit Abstand zu dem ersten Abschnitt 29 bzw. 29' angeordnet ist, um die den Schlitz bildenden, freien Endabschnitte 12, 13 der Klemmschenkel dazwischen aufzunehmen. Zusätzlich kann zwischen dem ersten und zweiten Abschnitt ein diese verbindender und den Schlitz durchgreifender Steg angeordnet sein. Dadurch ist gewährleistet, daß auch relativ biegeweiche Drähte sicher und ohne übermäßige Verformung in den Schlitz bewegt werden.As can further be seen from FIG. 7, the connection tool 23 or 23 'has a profiled section 29 and 29 ', whose cross-section complementary to the hollow cross-section of the remaining between the clamping legs 10, 11 Interspace is designed so that a through the passage opening 25 or 25 'introduced Wire is safely inserted into the slot 15. Continue and the same Purpose serving the connection tool with a second section 30th or 30 ', which is arranged at a distance from the first section 29 or 29' is to the slot forming free end portions 12, 13 of the clamping legs to record in between. Additionally, between the first and second section a connecting this and the slot by cross web can be arranged. This ensures that even relatively soft wires safely and without excessive deformation will be moved into the slot.

    Fig. 10 bis 12 zeigen eine weitere Ausführungsform des erfindungsgemäßen Schneid-Klemmkontakts, der hierbei aus zwei formschlüssig ineinandergreifenden Teilen geteilt ausgebildet ist.
    Durch diese Maßnahme werden die Herstell- und Werkzeugkosten noch weiter reduziert, da der Grundkörper nicht einteilig hergestellt sein muß und Biegungen bzw. Abkantungen erleichtert herzustellen sind.    10 to 12 show a further embodiment of the insulation displacement contact according to the invention, which is formed here divided from two positively interlocking parts.
    By this measure, the manufacturing and tooling costs are further reduced because the body does not have to be made in one piece and bends or bends are easier to manufacture.

    Fig. 10 zeigt eine perspektivische, auseinandergezogene Ansicht zweier Teile 40, 40' eines im ganzen mit 17 bezeichneten Anschlußelements, wobei die Teile in diesem Fall miteinander identisch sind, während Fig. 11 verschiedene Ansichten eines einzelnen Teils 40 bzw. 40' zeigt und Fig. 12 entsprechende Ansichten eines Anschlußelements 17 im zusammengesetzten Zustand zeigt.10 shows a perspective, exploded view of two parts 40, 40 ' a generally designated 17 connecting element, wherein the parts in this Case are identical to each other, while Fig. 11 different views of a single Part 40 and 40 ', and Fig. 12 corresponding views of a connecting element 17 shows in the assembled state.

    Aus Fig. 10 ist erkennbar, daß die beiden Teile 40, 40' durch Ausstanzen und Abkanten aus zwei Blechabschnitten hergestellt sind, wobei sich als besonderer Vorteil der geteilten Ausführung ergibt, daß an keiner Stelle eine Biegung von mehr als 90° erforderlich ist, da der geschlossene Querschnitt des jeweiligen Grundkörpers der Schneid-Klemmkontakte 1 erst im zusammengesetzten Zustand (Fig. 12) durch Zusammenwirken der beiden Teile und deren Seitenwandabschnitte 2, 2' und 3a, 5a' bzw. 5a, 3a' gebildet wird (Fig. 10).From Fig. 10 it can be seen that the two parts 40, 40 'by punching and folding are made of two sheet metal sections, with a special advantage the split design shows that at no point a bend of more than 90 ° is necessary, since the closed cross-section of the respective body of the Cutting-clamp contacts 1 only in the assembled state (FIG. 12) by interaction the two parts and their side wall sections 2, 2 'and 3a, 5a' or 5a, 3a 'is formed (Fig. 10).

    Bevorzugt erfolgt eine formschlüssige Verriegelung der beiden Teile 40, 40' an mehreren Stellen, wobei die beiden Teile zunächst aus der in Fig. 10 gezeigten, beabstandeten Stellung in eine aneinanderliegende Stellung gebracht werden, die der nach Fig. 12 entspricht, wobei aber beide Teile noch in Längsrichtung gegeneinander versetzt sind, wie in Fig. 10 angedeutet. In dieser Ausgangsstellung befinden sich die Seitenwandabschnitte 2', 3a' auf der den Seitenwandabschnitten 2 und 5a zugekehrten Seiten der Seitenwandabschnitte 3a und 2. Fußabkantungen 42, 42' stehen einander auf gleicher Höhe in Längsrichtung verlagert gegenüber. Verriegelungslappen 44, 44' greifen in entsprechende Ausnehmungen 46, 46' der Seitenwandabschnitte 3a, 3a'.Preferably, a positive locking of the two parts 40, 40 'takes place at several Make, where the two parts initially spaced from that shown in Fig. 10 Position be placed in a juxtaposed position, the after Fig. 12 corresponds, but with both parts still offset in the longitudinal direction against each other are as indicated in Fig. 10. In this starting position are the Side wall sections 2 ', 3a' on the side wall sections 2 and 5a facing Side of the side wall portions 3a and 2. Fußabkantungen 42, 42 'are mutually displaced at the same height in the longitudinal direction. locking tab 44, 44 'engage in corresponding recesses 46, 46' of the side wall sections 3a, 3a '.

    Durch Verschieben der beiden Teile 40, 40' gegeneinander in Längsrichtung gelangen die Seitenwandabschnitte 2a', 3a' und 2', 5a' in Anlage gegen die entsprechenden Seitenwandabschnitte 2, 5a, und 3a, 2, und die Verriegelungslappen 44, 44' greifen mit ihren freien Endabschnitten (auch) in die Ausnehmungen 48, 48'. Die schmalen Stirnseiten der Fußabkantungen 42, 42' liegen im Endzustand (Fig. 12) gegenüberliegend aneinander an (insbesondere stirnseitige Ansicht in Fig. 12).By moving the two parts 40, 40 'against each other in the longitudinal direction the side wall sections 2a ', 3a' and 2 ', 5a' abut against the corresponding ones Side wall sections 2, 5a, and 3a, 2, and the locking tabs 44, 44 'engage with their free end portions (also) in the recesses 48, 48 '. The narrow end faces of Fußabkantungen 42, 42 'are in the final state (Fig. 12) opposite one another (in particular end view in Fig. 12).

    Durch Anordnung weiterer Verriegelungsvorsprünge und -ausnehmungen wie beispielsweise 50, 50' und 51, 51' werden die Teile 40, 40' in der zusammengesetzten Stellung nach Fig. 12 gegen Längsverschiebung gesichert. By arranging further locking projections and recesses such as 50, 50 'and 51, 51' are the parts 40, 40 'in the assembled Position secured according to FIG. 12 against longitudinal displacement.

    Bezugszeichenliste:LIST OF REFERENCE NUMBERS

    11
    Schneid-KlemmkontaktInsulation displacement contact
    2, 2'2, 2 '
    SeitenwandSide wall
    33
    SeitenwandSide wall
    3a, 3a'3a, 3a '
    Ansatz von 3Approach of 3
    44
    SeitenwandSide wall
    55
    SeitenwandSide wall
    5a, 5a'5a, 5a '
    Ansatz von 5Approach of 5
    77
    Stanzungpunching
    1010
    Klemmschenkelclamping leg
    1111
    Klemmschenkelclamping leg
    1212
    freier Endabschnitt von 10free end section of 10
    1313
    freier Endabschnitt von 11free end section of 11
    1515
    Schlitzslot
    16, 16'16, 16 '
    mittlerer Leitermiddle conductor
    1717
    Anschlußelementconnecting element
    2020
    Gehäusecasing
    2121
    Aussparungrecess
    2323
    Anschlußwerkzeugconnection tool
    2525
    Durchlaßöffnungpassage opening
    2626
    Betätigungsöffnungactuating opening
    2828
    Ausnehmungrecess
    2929
    profilierter Abschnittprofiled section
    3030
    zweiter Abschnittsecond part
    40, 40'40, 40 '
    Teile (von 17)Parts (of 17)
    42, 42'42, 42 '
    FußabkantungFußabkantung
    44, 44'44, 44 '
    Verriegelungslappenlocking tab
    46, 46'46, 46 '
    Ausnehmungrecess
    48, 48'48, 48 '
    Ausnehmungrecess
    50, 50'50, 50 '
    Verriegelungsvorsprunglocking projection
    51, 51'51, 51 '
    Ausnehmungrecess

    Claims (19)

    1. Insulation displacement contact (1) with two spring-like clamping limbs (10, 11) which are arranged opposite one another at a spacing and which each have a free end portion (12, 13), wherein the free end portions are bent over in direction towards one another and define a slot (15) for contacting and clamped fixing of an electrical wire, characterised in that the clamping limbs (10, 11) are formed as extensions of two mutually opposite side walls (3, 5) of a base body with a closed polygonal wall cross-section (2, 3, 4, 5).
    2. Insulation displacement contact according to claim 1, characterised in that the base body has four side walls (2, 3, 4, 5) which are disposed parallelly opposite one another each time in pairs (2, 4; 3, 5).
    3. Insulation displacement contact according to claim 1 or 2, characterised in that the base body has two narrower side walls (2, 4) and two wider side walls (3, 5), wherein the clamping limbs (10, 11) are formed as extensions of the wider side surfaces (3, 5).
    4. Insulation displacement contact according to one of the preceding claims, characterised in that the base body is formed from bent sheet metal, wherein one side wall (4) is formed by bent-over, mutually overlapping projections (3a, 5a), which are connected together in shape-locking and/or force-locking manner, of the directly adjacent side walls (3, 5).
    5. Insulation displacement contact according to claim 4, characterised in that the projections (3a, 5a) are connected together by stamping.
    6. Insulation displacement contact according to claim 6, characterised in that the projections are connected together by spot-welding.
    7. Insulation displacement contact according to one of the preceding claims, characterised in that at least one reinforcing rib is formed on at least one clamping limb (10, 11).
    8. Insulation displacement contact according to claim 7, characterised in that the at least one reinforcing corrugation extends over the length (I) of the clamping limb (10, 11).
    9. Insulation displacement contact according to claim 7 or 8, characterised in that the at least one reinforcing corrugation extends into the adjoining side wall (3, 5).
    10. Insulation displacement contact according to one of the preceding claims, characterised in that the free end portions (12, 13), which form the slot (15), of the clamping limbs (10,11) are disposed directly opposite one another.
    11. Insulation displacement contact according to one of claims 1 to 9, characterised in that the free end portions (12, 13), which form the slot (15), of the clamping limbs (10, 11) are disposed opposite one another to be offset in longitudinal direction of the clamping limbs.
    12. Insulation displacement contact (1) according to one of claims 1 to 11, characterised in that the insulation displacement contact (1) is formed to be divided from two parts (40, 40') interengaging in shape-locking manner.
    13. Insulation displacement contact according to claim 12, characterised in that the parts (40, 40') are identical.
    14. Insulation displacement contact according to claim 12 or 13, characterised in that the side walls (3, 5; 3', 5') carrying the clamping limbs (10, 11; 10', 11') have folded foot portions (42, 42'), which in the assembled state of the parts (40, 40') bear against one another, at their ends opposite the free end portions (12, 13, 12', 13').
    15. Electrical connecting device (17) for connecting at least two electrical wires, characterised in that two insulation displacement contacts (1, 1') according to one of the preceding claims are retained in conductive connection in a housing (20).
    16. Electrical connecting device according to claim 15, characterised in that two insulation displacement contacts (1, 1') according to one of claims 1 to 11 are mounted in mirror-symmetrical arrangement at the end portions of an elongate conductor (16, 16').
    17. Electrical connecting device according to claim 16, characterised in that the elongate conductor is a sheet metal strip (16, 16') with which the two insulation displacement contacts (1, 1') are integrally formed.
    18. Electrical connecting device according to claim 17, characterised in that the sheet metal strip (16, 16') is bent over to be U-shaped and has two parallel side limbs, wherein each side limb goes over into that side wall (2, 2') of one of the insulation displacement contacts (1, 1') which is disposed opposite the side wall formed from bent-over projections (3a, 5a; 3a', 5a').
    19. Electrical connecting device according to one of claims 15 to 18, characterised in that at least one connecting tool (23, 23') for connecting electrical wires is guided in the housing (20), the tool being provided with a head which has a profiled first portion (29, 29'), the cross-section of which is formed to be complementary to the free cross-section between the clamping limbs (10, 11; 10', 11').
    EP99121990A 1998-11-11 1999-11-10 Insulation displacement contact Expired - Lifetime EP1001489B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE19851956 1998-11-11
    DE1998151956 DE19851956C2 (en) 1998-11-11 1998-11-11 Insulation displacement contact
    DE19932740A DE19932740C2 (en) 1998-11-11 1999-07-14 Insulation displacement contact
    DE19932740 1999-07-14

    Publications (3)

    Publication Number Publication Date
    EP1001489A2 EP1001489A2 (en) 2000-05-17
    EP1001489A3 EP1001489A3 (en) 2002-01-30
    EP1001489B1 true EP1001489B1 (en) 2004-01-28

    Family

    ID=26050065

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99121990A Expired - Lifetime EP1001489B1 (en) 1998-11-11 1999-11-10 Insulation displacement contact

    Country Status (4)

    Country Link
    EP (1) EP1001489B1 (en)
    AT (1) ATE258723T1 (en)
    DE (2) DE19932740C2 (en)
    ES (1) ES2214795T3 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE20313285U1 (en) * 2003-08-27 2004-09-30 Weco Wester, Ebbinghaus Gmbh & Co. Kg Electrical connection terminal
    CH699105A1 (en) 2008-07-11 2010-01-15 Reichle & De Massari Fa IDC and contacting.
    ES2396897B1 (en) * 2011-06-09 2013-11-04 Simon, S.A.U. ELECTRICAL CONTACT.

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4575173A (en) * 1984-12-19 1986-03-11 General Motors Corporation Insulation displacement terminal
    FR2598039B1 (en) * 1986-04-28 1990-09-21 Alsthom Cgee SLOT CONNECTION ARRANGEMENT FOR ELECTRIC WIRE AND CORRESPONDING CONNECTION TOOL END CAP
    GB9220575D0 (en) * 1992-09-30 1992-11-11 Weidmuller Klippon Products Li Electric connector

    Also Published As

    Publication number Publication date
    DE59908407D1 (en) 2004-03-04
    EP1001489A2 (en) 2000-05-17
    DE19932740C2 (en) 2001-08-02
    ES2214795T3 (en) 2004-09-16
    EP1001489A3 (en) 2002-01-30
    ATE258723T1 (en) 2004-02-15
    DE19932740A1 (en) 2001-02-01

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