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EP1317019B1 - Electrical contact element - Google Patents

Electrical contact element Download PDF

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Publication number
EP1317019B1
EP1317019B1 EP02025355A EP02025355A EP1317019B1 EP 1317019 B1 EP1317019 B1 EP 1317019B1 EP 02025355 A EP02025355 A EP 02025355A EP 02025355 A EP02025355 A EP 02025355A EP 1317019 B1 EP1317019 B1 EP 1317019B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
contact element
electrical contact
terminal end
connection
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
EP02025355A
Other languages
German (de)
French (fr)
Other versions
EP1317019A3 (en
EP1317019A2 (en
Inventor
Albert Ferderer
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.)
Harting Electric Stiftung and Co KG
Original Assignee
Harting Electric GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harting Electric GmbH and Co KG filed Critical Harting Electric GmbH and Co KG
Publication of EP1317019A2 publication Critical patent/EP1317019A2/en
Publication of EP1317019A3 publication Critical patent/EP1317019A3/en
Application granted granted Critical
Publication of EP1317019B1 publication Critical patent/EP1317019B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/4848—Busbar integrally formed with the spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H01R4/5025—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone combined with a threaded ferrule operating in a direction parallel to the conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring

Definitions

  • the invention relates to an electrical contact element, in particular designed as a pin contact or socket contact contact element with a plug-in area and a connection end for connecting an electrical conductor.
  • Such a contact element which is usually surrounded by an insulating housing, is required to produce an electrical connection between an electrical conductor and a terminal end of an electrical pin contact or a female contact, but no special tools is required.
  • connection principles are known in the art, such as by soldering, screw connections, by Käfigzugfederan gleich or by crimping.
  • an electrical connection assembly with a housing is known in which at least one connection for an insulated conductor or a stripped conductor is provided with at least one cutting element and at least one spring element.
  • the invention is therefore based on the object to form a contact element of the type mentioned in that at least one already in use contact element with a crimp or screw connection can be easily replaced or replaced with the contact element according to the invention, said at least comparable Kunststofftechnikswolf, how contact resistances and gas-tight connection points between an electrical conductor and a contact element are achieved, as in the case of a crimp connection, without, however, requiring the special tool, for example a crimping tool.
  • connection end a sleeve can be applied, that the sleeve has punched out of its wall, directed into the sleeve interior spring arms, and that the spring arms are immersed in a bore in the terminal end of the contact element.
  • connection cross section of the electrical conductors for the contact element according to the invention comprises a larger range of variation than is possible with a crimp connection;
  • a total cross-sectional areas of 0.5 to 2.5 mm 2 can be connected.
  • FIG. 1 shows a contact element 1 designed as a pin contact with a sleeve 7 and an electrical conductor 15 inserted therein.
  • the contact element is formed from a pin-shaped plug-in region 2 with an adjoining connection end 3, on which a sawtooth thread 5 is provided. Furthermore, a conical bore 6 is provided, dip in the two spring arms 8, which are cut out of the jacket of the sleeve 7.
  • a collar 10 is integrally formed on the sleeve end, whose edge 11 pointing into the interior of the sleeve is shaped corresponding to the tooth flanks of the sawtooth thread 5.
  • a plurality of slots 12 are provided, which extend from the collar 10, starting axially into the shell of the sleeve.
  • the displacement of the sleeve takes place quickly and easily by an axial sliding movement or by a rotational movement of the sleeve on the sawtooth thread 5 of the pin contact.
  • the sleeve is provided with a plurality of longitudinal slots 12, so that segments are formed, which also ensure a "ratchet-like" sliding over the thread tooth flanks.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Contacts (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

The electrical connector has a plug section (2) to which the wires of a cable are coupled using a sleeve (7). The sleeve is formed with an end section having arms (10) that latch onto serrations (5). The other end has a number of arms (9) that fit into the plug and are pressed against the wires (6).

Description

Die Erfindung betrifft ein elektrisches Kontaktelement, insbesondere ein als Stiftkontakt oder Buchsenkontakt ausgebildetes Kontaktelement mit einem Steckbereich und einem Anschlussende zum Anschluss eines elektrischen Leiters.The invention relates to an electrical contact element, in particular designed as a pin contact or socket contact contact element with a plug-in area and a connection end for connecting an electrical conductor.

Ein derartiges Kontaktelement, das in der Regel von einem isolierenden Gehäuse umgeben ist, wird benötigt, um eine elektrische Verbindung zwischen einem elektrischen Leiter und einem Anschlussende eines elektrischen Stiftkontaktes oder eines Buchsenkontaktes herzustellen, wobei jedoch keinerlei spezielles Werkzeug erforderlich ist.Such a contact element, which is usually surrounded by an insulating housing, is required to produce an electrical connection between an electrical conductor and a terminal end of an electrical pin contact or a female contact, but no special tools is required.

Zum Anschluss elektrischer Leiter an ein Kontaktelement sind eine Reihe von Anschlussprinzipien in der Technik bekannt, wie mittels Löten, über Schraubanschlüsse, durch Käfigzugfederanschluss oder auch durch Crimpanschlüsse.For connecting electrical conductors to a contact element, a number of connection principles are known in the art, such as by soldering, screw connections, by Käfigzugfederanschluss or by crimping.

Aus der DE 199 14 308 A1 ist eine elektrische Anschlussbaueinheit mit einem Gehäuse bekannt, bei der mindestens ein Anschluß für einen isolierten Leiter oder einen abisolierten Leiter mit mindestens einem Schneidelement und mindestens einem Federelement vorgesehen ist.From the DE 199 14 308 A1 an electrical connection assembly with a housing is known in which at least one connection for an insulated conductor or a stripped conductor is provided with at least one cutting element and at least one spring element.

Nachteilig wirkt sich dabei aus, dass verschiedene Anschlussprinzipien, wie z. B. das Löten in der industriellen Verbindungstechnik stetig auf Grund des Aufwandes zurückgedrängt wird, dass Schraubanschlüsse wie auch Käfigzugfederanschlüsse einen relativ großen Raumbedarf haben, und Crimpanschlüsse jeweils spezielles Werkzeug erfordern.The disadvantage is that different connection principles, such. B. soldering in industrial connection technology is steadily pushed back due to the effort that screw connections as well as Käfigzugfederanschlüsse have a relatively large amount of space, and crimp connections require each special tool.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Kontaktelement der eingangs genannten Art dahingehend auszubilden, dass mindestens ein bereits im Einsatz befindliches Kontaktelement mit einem Crimp- oder Schraubanschluss problemlos gegen das erfindungsgemäße Kontaktelement ersetzt oder ausgetauscht werden kann, wobei mit dieser Verbindungstechnik mindestens vergleichbare Kontaktierungsdaten, wie Übergangswiderstände und gasdichte Verbindungspunkte zwischen einem elektrischen Leiter und einem Kontaktelement erreicht werden wie bei einem Crimpanschluss, ohne jedoch das spezielle Werkzeug beispielsweise einer Crimpzange zu benötigen.The invention is therefore based on the object to form a contact element of the type mentioned in that at least one already in use contact element with a crimp or screw connection can be easily replaced or replaced with the contact element according to the invention, said at least comparable Kontaktierungsdaten, how contact resistances and gas-tight connection points between an electrical conductor and a contact element are achieved, as in the case of a crimp connection, without, however, requiring the special tool, for example a crimping tool.

Diese Aufgabe wird dadurch gelöst, dass auf das Anschlussende eine Hülse aufbringbar ist, dass die Hülse aus ihrer Wandung herausgestanzte, in den Hülseninnenraum gerichtete Federarme aufweist, und dass die Federarme in eine Bohrung im Anschlussende des Kontaktelementes eintauchen.This object is achieved in that on the connection end a sleeve can be applied, that the sleeve has punched out of its wall, directed into the sleeve interior spring arms, and that the spring arms are immersed in a bore in the terminal end of the contact element.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 - 5 angegeben.Advantageous embodiments of the invention are specified in claims 2-5.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß derartige als Stift- oder Buchsenkontakt ausgebildete Kontaktelemente mit ihren äußeren Konturen an bereits bestehende und im Einsatz befindliche Steckverbindersysteme angepasst sind und somit ältere Versionen, die mit einem Crimp-, Schraub- oder Lötanschluß versehen sind, problemlos ausgetauscht werden können, wobei keinerlei spezielles Werkzeug benötigt wird. Darüber hinaus werden mit dieser Befestigungsart nahezu gleichartige Leiterauszugskräfte wie bei einem Schraubanschluss erzielt.The advantages achieved by the invention are in particular that such designed as a pin or socket contact elements are adapted with their outer contours to existing and in-use connector systems and thus older versions that are provided with a crimp, screw or solder connection , can be easily replaced, with no special tools needed. In addition, almost identical ladder pull-out forces are achieved with this type of fastening as with a screw connection.

Weiterhin ist von Vorteil, dass der Anschlussquerschnitt der elektrischen Leiter für das erfindungsgemäße Kontaktelement einen größeren Variationsbereich umfasst, als dies bei einem Crimpanschluss möglich ist; so sind insgesamt Querschnittsbereiche von 0,5 bis 2,5 mm2 anschließbar.Furthermore, it is advantageous that the connection cross section of the electrical conductors for the contact element according to the invention comprises a larger range of variation than is possible with a crimp connection; Thus, a total cross-sectional areas of 0.5 to 2.5 mm 2 can be connected.

Durch die Ausbildung eines Sägezahngewindes am Anschlussende des Kontaktelementes ist die auf den elektrischen Leiter ausgeübte Keilwirkung der Spitzen der Federarme vorteilhafterweise neben einer Drehbewegung wahlweise auch durch eine axial verrastende Wirkung der Hülse erzielbar. Durch die Keilwirkung der Federarmspitzen ist zudem eine vibrations- und auszugssichere Befestigungstechnik für den elektrischen Leiter realisiert.By the formation of a Sägezahngewindes at the terminal end of the contact element, the force exerted on the electrical conductor wedge effect of the tips of the spring arms advantageously in addition to a rotational movement optionally also by an axially latching effect of the sleeve achievable. Due to the wedging action of the spring arm tips, a vibration-proof and reliable fastening technology for the electrical conductor is also realized.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:

Fig. 1
eine Schnittdarstellung eines kompletten Kontaktelementes mit einer aufgeschraubten Hülse, und
Fig. 2
eine perspektivische Darstellung der Hülse.
An embodiment of the invention is illustrated in the drawing and will be explained in more detail below. Show it:
Fig. 1
a sectional view of a complete contact element with a screwed sleeve, and
Fig. 2
a perspective view of the sleeve.

In der Fig. 1 ist ein als Stiftkontakt ausgebildetes Kontaktelement 1 mit einer Hülse 7 und einem darin eingefügten elektrischen Leiter 15 gezeigt.
Das Kontaktelement wird aus einem stiftförmigen Steckbereich 2 mit einem sich daran anschließenden Anschlussende 3 gebildet, auf dem ein Sägezahngewinde 5 vorgesehen ist.
Weiterhin ist eine kegelförmige Bohrung 6 vorgesehen, in die zwei Federarme 8 eintauchen, die aus dem Mantel der Hülse 7 herausgeschnitten sind.FIG. 1 shows a contact element 1 designed as a pin contact with a sleeve 7 and an electrical conductor 15 inserted therein.
The contact element is formed from a pin-shaped plug-in region 2 with an adjoining connection end 3, on which a sawtooth thread 5 is provided.
Furthermore, a conical bore 6 is provided, dip in the two spring arms 8, which are cut out of the jacket of the sleeve 7.

Die in Fig. 2 dargestellte Hülse 7 weist in diesem Beispiel zwei Federarme 8 auf, die aus dem Mantel der Hülse geschnitten bzw. gestanzt sind und in das Hülseninnere weisen.
In Richtung der Federarme weisend, ist am Hülsenende ein Kragen 10 angeformt, dessen in den Innenraum der Hülse weisender Rand 11 entsprechend den Zahnflanken des Sägezahngewindes 5 geformt ist.
Weiterhin sind mehrere Schlitze 12 vorgesehen, die vom Kragen 10 ausgehend axial in den Mantel der Hülse hineinreichen.The sleeve 7 shown in Fig. 2, in this example, two spring arms 8, which are cut or stamped from the jacket of the sleeve and point into the sleeve interior.
Pointing in the direction of the spring arms, a collar 10 is integrally formed on the sleeve end, whose edge 11 pointing into the interior of the sleeve is shaped corresponding to the tooth flanks of the sawtooth thread 5.
Furthermore, a plurality of slots 12 are provided, which extend from the collar 10, starting axially into the shell of the sleeve.

Bei der Montage des Kontaktelementes mit einem abisolierten, elektrischen Leiter 15 wird dieser zunächst in die Hülse 7 eingeführt und bis zum Anschlag in der Bohrung 6 im Anschlussende 3 eingeschoben.
Dabei gleitet der Leiter an den in den Hülseninnenraum gerichteten Federarmen 8 vorbei.
Anschließend werden durch eine axiale Verschiebung der Hülse, in Richtung des Steckbereiches 2 des Kontaktelementes, die bereits in der trichter- oder kegelförmigen Bohrung 6 des Anschlussbereiches befindlichen Federarme tiefer in die Bohrung eingeschoben, wobei der elektrische Leiter - je nach Krafteinwirkung zunehmend - zwischen den Federarmspitzen 9 verkeilt wird. Die Verschiebung der Hülse erfolgt dabei schnell und einfach durch eine axiale Schiebebewegung oder auch durch eine Drehbewegung der Hülse auf dem Sägezahngewinde 5 des Stiftkontaktes.
Dabei ist die Hülse mit mehreren Längsschlitzen 12 versehen, so dass Segmente entstehen, die auch ein "ratschenartiges" Übergleiten über die Gewindezahnflanken gewährleisten.
Durch eine dem Uhrzeigersinn entgegengesetzte Drehung der Hülse 7 auf dem Sägezahngewinde 5 ist ein Entfernen des elektrischen Leiters 15 aus dem Kontaktelement möglich.When mounting the contact element with a stripped, electrical conductor 15, this is first inserted into the sleeve 7 and pushed to the stop in the bore 6 in the terminal end 3.
In this case, the conductor slides past the spring arms 8 directed into the sleeve interior.
Subsequently, by an axial displacement of the sleeve, in the direction of the plug-in region 2 of the contact element, the already in the funnel or conical bore 6 of the connection area located spring arms inserted deeper into the bore, wherein the electrical conductor - depending on the force increasingly - between the Federarmspitzen 9 is wedged. The displacement of the sleeve takes place quickly and easily by an axial sliding movement or by a rotational movement of the sleeve on the sawtooth thread 5 of the pin contact.
The sleeve is provided with a plurality of longitudinal slots 12, so that segments are formed, which also ensure a "ratchet-like" sliding over the thread tooth flanks.
By a counterclockwise rotation of the sleeve 7 on the sawtooth thread 5, a removal of the electrical conductor 15 from the contact element is possible.

Claims (5)

  1. An electrical contact element, in particular a contact element (1) realized in the form of a pin contact or a socket contact, comprising a plug-in portion (2) and a terminal end (3) for connection of an electrical conductor, characterized in that
    a sleeve (7) can be applied onto the terminal end (3),
    the sleeve has spring arms (8) stamped out of its wall and directed into the interior of the sleeve, and
    the spring arms plunge into a bore hole (6) in the terminal end (3) of the contact element.
  2. The electrical contact element according to claim 1, characterized in that the bore hole (6) in the terminal end (3) is of a conical shape.
  3. The electrical contact element according to claim 1 or 2, characterized in that
    a sawtooth thread (5) is provided on the terminal end (3).
  4. The electrical contact element according to any of the preceding claims, characterized in that
    the sleeve (7) has a collar (10) formed integrally therewith, the rim (11) of which is configured such that the sleeve can be screwed on the sawtooth thread.
  5. The electrical contact element according to any of the preceding claims, characterized in that
    the sleeve (7) has a plurality of axial slots (12) which extend from the collar (10) towards the middle of the sleeve.
EP02025355A 2001-12-01 2002-11-14 Electrical contact element Expired - Lifetime EP1317019B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20119530U DE20119530U1 (en) 2001-12-01 2001-12-01 Electrical contact element
DE20119530U 2001-12-01

Publications (3)

Publication Number Publication Date
EP1317019A2 EP1317019A2 (en) 2003-06-04
EP1317019A3 EP1317019A3 (en) 2004-02-04
EP1317019B1 true EP1317019B1 (en) 2007-06-20

Family

ID=7964667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025355A Expired - Lifetime EP1317019B1 (en) 2001-12-01 2002-11-14 Electrical contact element

Country Status (6)

Country Link
US (1) US6827613B2 (en)
EP (1) EP1317019B1 (en)
JP (1) JP3899310B2 (en)
AT (1) ATE365384T1 (en)
DE (2) DE20119530U1 (en)
ES (1) ES2289040T3 (en)

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Also Published As

Publication number Publication date
EP1317019A3 (en) 2004-02-04
DE20119530U1 (en) 2002-04-18
ES2289040T3 (en) 2008-02-01
EP1317019A2 (en) 2003-06-04
JP3899310B2 (en) 2007-03-28
ATE365384T1 (en) 2007-07-15
US6827613B2 (en) 2004-12-07
DE50210342D1 (en) 2007-08-02
US20030104732A1 (en) 2003-06-05
JP2003168498A (en) 2003-06-13

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