EP2530785A1 - Cable tension release and connector with cable tension release - Google Patents

Cable tension release and connector with cable tension release Download PDF

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Publication number
EP2530785A1
EP2530785A1 EP12002723A EP12002723A EP2530785A1 EP 2530785 A1 EP2530785 A1 EP 2530785A1 EP 12002723 A EP12002723 A EP 12002723A EP 12002723 A EP12002723 A EP 12002723A EP 2530785 A1 EP2530785 A1 EP 2530785A1
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EP
European Patent Office
Prior art keywords
cable
strain relief
crimping
connector
cable strain
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12002723A
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German (de)
French (fr)
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EP2530785B1 (en
Inventor
Michael Grimm
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Amphenol Tuchel Electronics GmbH
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Amphenol Tuchel Electronics GmbH
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Publication of EP2530785A1 publication Critical patent/EP2530785A1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5808—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part formed by a metallic element crimped around the 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • H01R4/203—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact
    • H01R4/206—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve having an uneven wire-receiving surface to improve the contact with transversal grooves or threads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
    • H01R13/65914—Connection of shield to additional grounding conductors
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/188—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping having an uneven wire-receiving surface to improve the contact

Definitions

  • the present invention relates to a cable strain relief according to the preamble of claim 1.
  • a cable strain relief is a connector that is to be coupled to the outer circumference of a cable and allows forces acting in the longitudinal direction of the cable, i. H. axial forces transmitted through the cable to an external structure.
  • a cable typically contains a plurality of individual insulated conductors, which are also covered with a braided shield, it must be ensured that the cable or conductors are not torn out of the connection arrangement.
  • a known in the art type of cable strain relief has z.
  • B two tubular parts having cooperating conical surfaces. An interior portion formed slotted, wherein the slot typically extends axially from one end to the proximate other end, such that axially extending tabs are formed.
  • the US 5,180,316 A discloses a generally tubular, longitudinally split connector body which is crimped at one of its ends about an exposed shield of a cable. In this embodiment, attempts are made by means of a crimping and thus a mechanical deformation of a connecting body to achieve a solid and therefore permanent connection with the cable sheath.
  • a disadvantage of this type of connection solution is that a large-scale investment of the crimp inner sleeve leads to the cable jacket that the plastic flows away and a permanent connection is not guaranteed or at least problems may occur in the application.
  • Object of the present invention is therefore to provide a strain relief, a cable, in particular with a cable shield, in particular large cable cross-sections, ie cross sections> 30 mm 2 can be attached using a simple tool and a permanent and tight connection with the cable manufacture.
  • Fig. 1 shows an embodiment of a connector 100 according to the invention with a cable strain relief according to the invention 1.
  • the connector 100 is shown here as a circular connector, which is connected to a cable 2, here a shielded cable 2 by means of Jardinzugentlastung 1.
  • the connector 100 has a holding portion 101, which is connected to the connecting portion 4 of the cable strain relief 1.
  • the connecting portion 4 in the present embodiment an inner connecting portion which can be secured, for example, with a thread on the holding portion 101 of the connector 100.
  • the cable strain relief 1 comprises two crimping sections, specifically a first crimping section 30 and a second crimping section 40 spaced therefrom.
  • the Fig. 1 and Fig. 2 show the crimped state of the crimping sleeve 3 of the cable strain relief.
  • An essential part of the cable strain relief 1 is therefore the cylindrically shaped crimp barrel 3 or tubular crimp barrel 3.
  • the cable 2 is introduced with its cable sheath 20 and the folded back braid 22, as shown in Fig. 3 is apparent.
  • crimp sleeve 3 is shown in not yet crimped state, so that the outer sheath 34 is formed contourless.
  • a cable engagement 35 On the inner jacket 32 of the crimping sleeve 3, in the region of the first crimping section 30, there is a cable engagement 35, which in the present exemplary embodiment is designed as an inner circumferential annular section 31.
  • the inner circumferential ring portion 31 may be completely closed circumferentially or sequentially interrupted on the inner shell 32 may be arranged.
  • the annular portion 31 is formed tip-shaped or with a sharp contour for engagement in the cable sheath.
  • In cross-section results in a substantially triangular pointed shape, which is preferably tuned in its geometry to the hardness of the cable sheath 20.
  • the left and right sections adjacent to the crimping section are crimped with a crimping tool so that the ring section 31 penetrates into the cable sheath 20 and digs there.
  • the second crimping portion 40 adjacent to the first crimping portion 30 is different from the former.
  • the second crimping section 40 consists of two separate means, namely an annular groove 42 formed on the inner jacket 32 and a ring element 41 corresponding to this groove.
  • the ring member 41 is mounted between the cable sheath 20 and the folded back at the end of the cable 2 cable shield namely the screen braid 22. So then the crimp barrel, as in Fig. 3 shown, pushed over the cable sheath 20, as far as until the annular groove 42 is located above or around the ring member 41. In this position, the crimping sleeve 3 is crimped by means of a crimping tool so that the in Fig. 4 illustrated contour is formed.
  • the ring portion 31 penetrates into the cable sheath 20, while the areas are compressed around the second crimping portion 40 and crimped onto the cable sheath, that the less crimped crimping portion 40 is pressed into the ring member 41 and between the shield braid 22 is received.
  • the crimped sleeve consists of three holding portions 36, which are each interrupted by one of the crimping portions 30, 40.
  • the holding portions of the crimping sleeve 30 are pressed in the compressed and deformed state on the cable sheath 20 so that they connect the cable strain relief 1 fixed to the cable sheath.
  • the connection as described above is made with the cable sheath and the cable shield.
  • a cable strain relief 1 could similarly be provided for unshielded cables having two identical or similar crimping portions 30 with cable engagements 35.
  • the ring portion 31 is advantageously designed so that at its the cable sheath 20 facing crest line 33 a tip or more tips or teeth are arranged, preferably as in Fig. 4 shown, the crest line is formed circumferentially as a pointed contour.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The cable tensile strain reliever (1) has a cable sheath and a shield mesh, which is re-folded into the cable sheath at its end. A crimping case and a connecting section (4) are fixed at a plug connector (100). The crimping case has two distant crimping sections (30,40) with cable interferences. An independent claim is also included for a plug connector which has a holding section.

Description

Die vorliegende Erfindung betrifft eine Kabelzugentlastung gemäß dem Oberbegriff von Anspruch 1.The present invention relates to a cable strain relief according to the preamble of claim 1.

Eine Kabelzugentlastung stellt ein Verbindungselement dar, dass mit dem äußeren Umfang eines Kabels zu koppeln ist und ermöglicht, dass Kräfte, die in der Längsrichtung des Kabels wirken, d. h. axial auftretende Kräfte, über das Kabel auf eine externe Konstruktion übertragen werden.A cable strain relief is a connector that is to be coupled to the outer circumference of a cable and allows forces acting in the longitudinal direction of the cable, i. H. axial forces transmitted through the cable to an external structure.

Da ein Kabel typischerweise eine Vielzahl einzelner isolierter Leiter enthält, die darüber hinaus mit einem Schirmgeflecht überzogen sind, ist sicherzustellen, dass das Kabel bzw. die Leiter nicht aus der Verbindungsanordnung herausgerissen werden.Since a cable typically contains a plurality of individual insulated conductors, which are also covered with a braided shield, it must be ensured that the cable or conductors are not torn out of the connection arrangement.

Im Markt gibt es unterschiedliche Anordnungen von lösbaren Kabelverschraubungen, in denen ein Kabelzugentlastungselement integriert ist.In the market there are different arrangements of detachable cable glands in which a cable strain relief element is integrated.

Eine im Stand der Technik bekannte Art einer Kabelzugentlastung weist z. B. zwei rohrförmige Teile auf, die zusammenwirkende konische Oberflächen aufweisen. Ein innerer Teil der geschlitzt ausgebildet ist, wobei sich der Schlitz typischerweise axial von einem Ende zum nahe gelegenen anderen Ende erstreckt, so dass axial erstreckende Zungen gebildet werden. Wenn die zwei konische Teile in Axialrichtung zusammengebracht werden, werden die jeweils freien Enden der Zungen nach innen gegen die Außenseite des Kabels gedrückt und gebogen, so dass sie sich dort mechanisch verankern können. Hierzu wird die äußere Isolierung am Ende des Kabels entfernt und dass Schirmgeflecht wird um das Ende der verbleibenden Isolierhülse zurückgefaltet. Folglich werden, wenn die zwei rohrförmigen Teile zusammengeführt werden, Teile der Geflechtfasern zwischen benachbarten Zungen festgeklemmt. Dies führt zu einer jedoch nicht immer befriedigenden Verankerung der zugentlastung an Kabel.A known in the art type of cable strain relief has z. B. two tubular parts having cooperating conical surfaces. An interior portion formed slotted, wherein the slot typically extends axially from one end to the proximate other end, such that axially extending tabs are formed. When the two conical parts are brought together in the axial direction, the respective free ends of the tongues are pressed inwards against the outside of the cable and bent so that they can mechanically anchor there. For this purpose, the outer insulation is removed at the end of the cable and that screen braid is folded back around the end of the remaining insulating sleeve. Consequently, when the two tubular parts are brought together, parts of the braid fibers are clamped between adjacent tongues. This leads to a not always satisfactory anchoring of the cable strain relief.

Nichts anderes gilt, wenn Haltezungen einer Kabelzugentlastung sich durch gegenseitige Relativbewegungen mechanisch verbiegen und in einen Kabelmantel mechanisch eingreifen.Nothing else applies if holding tongues of a cable strain relief mechanically bend by mutual relative movements and mechanically intervene in a cable sheath.

Die meisten Kabelverschraubungen weisen aber Probleme auf, bei einer Temperaturwechsellagerung, insbesondere dann, wenn eine geschirmte Leitung verwendet wird.However, most cable glands have problems in a temperature change storage, especially if a shielded cable is used.

Ferner gibt es Alterungserscheinungen des Kabels, die weiter dazu beitragen, dass die Kabelzugentlastungsklemme oder die Kabelzugentlastung nicht dauerhaft oder ausreichend fest am Kabel anordenbar bist.There is also aging of the cable which further contributes to the cable strain relief or cable strain relief not being permanently or sufficiently fixed to the cable.

Die US 5,180,316 A offenbart einen im allgemeinen rohrförmigen, in Längsrichtung gespalteten Verbindungskörper, welcher an einem seiner Enden um eine freiliegende Abschirmung eines Kabels gecrimpt ist. In dieser Ausführungsform wird versucht, mittels einer Crimpung und damit einer mechanischen Verformung eines Verbindungskörpers, eine massive und daher dauerhafte Verbindung mit dem Kabelmantel zu erzielen.The US 5,180,316 A discloses a generally tubular, longitudinally split connector body which is crimped at one of its ends about an exposed shield of a cable. In this embodiment, attempts are made by means of a crimping and thus a mechanical deformation of a connecting body to achieve a solid and therefore permanent connection with the cable sheath.

Nachteilig auch bei dieser Art der Verbindungslösung ist, dass eine großflächige Anlage der Crimpinnenhülse auf dem Kabelmantel dazu führt, dass der Kunststoff wegfließt und eine dauerhafte Verbindung nicht gewährleistet ist oder jedenfalls Probleme in der Anwendung auftreten können.A disadvantage of this type of connection solution is that a large-scale investment of the crimp inner sleeve leads to the cable jacket that the plastic flows away and a permanent connection is not guaranteed or at least problems may occur in the application.

Aufgabe der vorliegenden Erfindung ist es daher, eine Zugentlastung bereitzustellen, die ein Kabel, insbesondere mit einem Kabelschirm, mit insbesondere großen Kabelquerschnitten, d. h. Querschnitten > 30 mm2 mit Hilfe eines einfachen Werkzeugs befestigt werden können und eine dauerhafte und auch dichte Verbindung mit dem Kabel herzustellen.Object of the present invention is therefore to provide a strain relief, a cable, in particular with a cable shield, in particular large cable cross-sections, ie cross sections> 30 mm 2 can be attached using a simple tool and a permanent and tight connection with the cable manufacture.

Weitere Ziele und Vorteile der vorliegenden Erfindung ergeben sich aus den Ausführungsbeispielen und den Zeichnungen.Other objects and advantages of the present invention will become apparent from the embodiments and the drawings.

Die Aufgabe der vorliegenden Erfindung wird mit den Merkmalen des Anspruch 1 erreicht.The object of the present invention is achieved with the features of claim 1.

Verbesserte oder besondere Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen.Improved or particular embodiments of the invention will become apparent from the dependent claims.

Die Erfindung wird anhand der Figuren 1 bis 4 im folgenden näher beschrieben, wobei die Figuren folgendes zeigen:

  • Fig. 1 zeigt eine perspektivische Ansicht eines Steckverbinders mit einer erfindungsgemäßen Kabelzugentlastung und einem daran angeschlossenen Kabel;
  • Fig. 2 zeigt die erfindungsgemäße Kabelzugentlastung ähnlich der Ansicht gemäß Fig. 1;
  • Fig. 3 zeigt ein Schnitt durch eine erfindungsgemäße Kabelzugentlastung gemäß Fig. 1 und Fig. 2;
  • Fig. 4 zeigt einen Schnitt ähnlich Fig. 3 durch eine erfindungsgemäße Kabelzugentlastung, bei dem die Kabelzugentlastung mechanisch auf den Mantel des Kabels aufgecrimpt ist.
The invention is based on the FIGS. 1 to 4 described in more detail below, the figures show the following:
  • Fig. 1 shows a perspective view of a connector with a cable strain relief according to the invention and a cable connected thereto;
  • Fig. 2 shows the cable strain relief invention similar to the view according to Fig. 1 ;
  • Fig. 3 shows a section through a cable strain relief according to the invention Fig. 1 and Fig. 2 ;
  • Fig. 4 shows a section similar Fig. 3 by a cable strain relief according to the invention, in which the cable strain relief is mechanically crimped onto the jacket of the cable.

Fig. 1 zeigt ein Ausführungsbeispiel eines erfindungsgemäßen Steckverbinders 100 mit einer erfindungsgemäßen Kabelzugentlastung 1. Der Steckverbinder 100 ist hier als Rundsteckverbinder dargestellt, der mit einem Kabel 2, hier einem geschirmten Kabel 2 mittels der Kabelzugentlastung 1 verbunden ist. Fig. 1 shows an embodiment of a connector 100 according to the invention with a cable strain relief according to the invention 1. The connector 100 is shown here as a circular connector, which is connected to a cable 2, here a shielded cable 2 by means of Kabelzugentlastung 1.

Der Steckverbinder 100 verfügt über einen Halteabschnitt 101, welcher mit dem Verbindungsabschnitt 4 der Kabelzugentlastung 1 verbunden ist.The connector 100 has a holding portion 101, which is connected to the connecting portion 4 of the cable strain relief 1.

Wie in Fig. 2 ersichtlich, weist der Verbindungsabschnitt 4 in dem vorliegenden Ausführungsbeispiel einen innen liegenden Verbindungsabschnitt auf, der beispielsweise mit einem Gewinde am Halteabschnitt 101 des Steckverbinders 100 befestigt werden kann.As in Fig. 2 can be seen, the connecting portion 4 in the present embodiment, an inner connecting portion which can be secured, for example, with a thread on the holding portion 101 of the connector 100.

Wie in Fig. 2 weiter ersichtlich, umfasst die erfindungsgemäße Kabelzugentlastung 1 zwei Crimpabschnitte und zwar einen ersten Crimpabschnitt 30 und einen davon beabstandeten zweiten Crimpabschnitt 40.As in Fig. 2 Furthermore, the cable strain relief 1 according to the invention comprises two crimping sections, specifically a first crimping section 30 and a second crimping section 40 spaced therefrom.

Die Fig. 1 und Fig. 2 zeigen den gecrimpten Zustand der Crimphülse 3 der Kabelzugentlastung 1.The Fig. 1 and Fig. 2 show the crimped state of the crimping sleeve 3 of the cable strain relief. 1

Wesentlicher Bestandteil der Kabelzugentlastung 1 ist daher die zylindrisch geformte Crimphülse 3 bzw. rohrförmig geformte Crimphülse 3.An essential part of the cable strain relief 1 is therefore the cylindrically shaped crimp barrel 3 or tubular crimp barrel 3.

In diese wird das Kabel 2 mit seinem Kabelmantel 20 und dem zurückgefalteten Schirmgeflecht 22 eingeführt, wie dies in Fig. 3 ersichtlich ist.In this, the cable 2 is introduced with its cable sheath 20 and the folded back braid 22, as shown in Fig. 3 is apparent.

In Fig. 3 ist die Crimphülse 3 im noch nicht gecrimpten Zustand dargestellt, so dass der Außenmantel 34 konturlos ausgebildet ist.In Fig. 3 the crimp sleeve 3 is shown in not yet crimped state, so that the outer sheath 34 is formed contourless.

Am Innenmantel 32 der Crimphülse 3 befinden sich im Bereich des ersten Crimpabschnittes 30 ein Kabeleingriff 35, der im vorliegenden Ausführungsbeispiel als innenumlaufender Ringabschnitt 31 ausgebildet ist.On the inner jacket 32 of the crimping sleeve 3, in the region of the first crimping section 30, there is a cable engagement 35, which in the present exemplary embodiment is designed as an inner circumferential annular section 31.

Der innenumlaufende Ringabschnitt 31 kann dabei vollständig umlaufend geschlossen oder auch sequenziell unterbrochen am Innenmantel 32 angeordnet sein.The inner circumferential ring portion 31 may be completely closed circumferentially or sequentially interrupted on the inner shell 32 may be arranged.

Wie in Fig. 3 ersichtlich, ist der Ringabschnitt 31 spitzenförmig bzw. mit einer spitzen Kontur zum Eingriff in den Kabelmantel ausgebildet. Im Querschnitt ergibt sich eine im wesentliche dreieckige spitze Form, die vorzugsweise in ihrer Geometrie auf die Härte des Kabelmantels 20 abzustimmen ist.As in Fig. 3 can be seen, the annular portion 31 is formed tip-shaped or with a sharp contour for engagement in the cable sheath. In cross-section results in a substantially triangular pointed shape, which is preferably tuned in its geometry to the hardness of the cable sheath 20.

Beim Crimpen des ersten Crimpabschnittes 30 wird der dem Crimpabschnitt benachbarte linke und rechte Abschnitt mit einem Crimpwerkzeug so gequetscht, dass der Ringabschnitt 31 in den Kabelmantel 20 eindringt und sich dort verkrallt.When crimping the first crimping section 30, the left and right sections adjacent to the crimping section are crimped with a crimping tool so that the ring section 31 penetrates into the cable sheath 20 and digs there.

Dies kann auch in alternativer Ausführungsform so geschehen, dass der Crimpabschnitt 30 insgesamt so gequetscht wird, dass sich keine erhabene, wie in Fig. 4 dargestellte Außenkontur ergibt, sondern eine abgesenkte Außenkontur.This can also be done in an alternative embodiment so that the crimping portion 30 is crushed as a whole so that no raised, as in Fig. 4 shown outer contour results, but a lowered outer contour.

Der zweite zum ersten Crimpabschnitt 30 benachbarte Crimpabschnitt 40 unterscheidet sich von ersterem.The second crimping portion 40 adjacent to the first crimping portion 30 is different from the former.

Der zweite Crimpabschnitt 40 besteht aus zwei getrennten Mitteln und zwar einer am Innenmantel 32 eingeformten ringförmigen Nut 42 und einem zu dieser Nut korrespondierenden Ringelement 41.The second crimping section 40 consists of two separate means, namely an annular groove 42 formed on the inner jacket 32 and a ring element 41 corresponding to this groove.

Das Ringelement 41 wird zwischen den Kabelmantel 20 und den am Ende des Kabels 2 zurückgefalteten Kabelschirm und zwar dem Schirmgeflecht 22 angebracht. So dann wird die Crimphülse, wie in Fig. 3 dargestellt, über den Kabelmantel 20 geschoben, soweit, bis die ringförmige Nut 42 sich über bzw. um das Ringelement 41 befindet. In dieser Position wird mittels eines Crimpwerkzeuges die Crimphülse 3 so gequetscht, dass die in Fig. 4 dargestellte Kontur ausgebildet wird. Hierbei dringt der Ringabschnitt 31 in den Kabelmantel 20 ein, während die Bereiche um den zweiten Crimpabschnitt 40 so komprimiert werden und auf den Kabelmantel gequetscht werden, dass der weniger gequetschte Crimpabschnitt 40 in das Ringelement 41 eingepresst wird und dazwischen das Schirmgeflecht 22 aufgenommen ist.The ring member 41 is mounted between the cable sheath 20 and the folded back at the end of the cable 2 cable shield namely the screen braid 22. So then the crimp barrel, as in Fig. 3 shown, pushed over the cable sheath 20, as far as until the annular groove 42 is located above or around the ring member 41. In this position, the crimping sleeve 3 is crimped by means of a crimping tool so that the in Fig. 4 illustrated contour is formed. In this case, the ring portion 31 penetrates into the cable sheath 20, while the areas are compressed around the second crimping portion 40 and crimped onto the cable sheath, that the less crimped crimping portion 40 is pressed into the ring member 41 and between the shield braid 22 is received.

Hierdurch wird eine mechanische und auch elektrische Verbindung des Schirmgeflechtes zum Steckverbinder hergestellt, die sowohl dauerhaft und mechanisch stabil ausgebildet ist als auch dicht.As a result, a mechanical and electrical connection of the braided shield is made to the connector, which is both durable and mechanically stable and dense.

Wie in Fig. 4 deutlich zu erkennen ist, besteht die gecrimpte Hülse aus drei Halteabschnitten 36, die jeweils von einem der Crimpabschnitte 30, 40 unterbrochen sind.As in Fig. 4 can be clearly seen, the crimped sleeve consists of three holding portions 36, which are each interrupted by one of the crimping portions 30, 40.

Die Halteabschnitte der Crimphülse 30 sind im zusammengepressten und verformten Zustand so am Kabelmantel 20 angepresst, dass diese die Kabelzugentlastung 1 fest mit dem Kabelmantel verbinden. An den benachbarten Bereichen und zwar im Crimpabschnitt 30 und Crimpabschnitt 40, wird die, wie zuvor beschriebene Verbindung, mit dem Kabelmantel und dem Kabelschirm herstellt.The holding portions of the crimping sleeve 30 are pressed in the compressed and deformed state on the cable sheath 20 so that they connect the cable strain relief 1 fixed to the cable sheath. At the adjacent areas, namely in the crimp section 30 and crimp section 40, the connection as described above is made with the cable sheath and the cable shield.

In einer alternativen, nicht dargestellten Ausführungsform könnten auf ähnliche Weise eine Kabelzugentlastung 1 bereitgestellt werden für nicht geschirmte Kabel, die über zwei gleiche oder ähnliche Crimpabschnitte 30 mit Kabeleingriffen 35 verfügen.In an alternative embodiment, not shown, a cable strain relief 1 could similarly be provided for unshielded cables having two identical or similar crimping portions 30 with cable engagements 35.

Der Ringabschnitt 31 ist mit Vorteil so ausgebildet, dass an seiner dem Kabelmantel 20 zugewandten Scheitellinie 33 eine Spitze oder mehrere Spitzen oder Zähne angeordnet sind, vorzugsweise wie in Fig. 4 dargestellt, die Scheitellinie als spitzenförmige Kontur umlaufend ausgebildet ist.The ring portion 31 is advantageously designed so that at its the cable sheath 20 facing crest line 33 a tip or more tips or teeth are arranged, preferably as in Fig. 4 shown, the crest line is formed circumferentially as a pointed contour.

Zur Dichtigkeit muss ein jedenfalls vollständig geschlossener Teil des Ringabschnittes 31 in den Kabelmantel 20 eintauchen.For tightness, a fully closed part of the ring portion 31 must be immersed in the cable sheath 20.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

Kabelzugentlastung und Steckverbinder mit Kabelzugentlastung

1
Kabelzugentlastung
2
Kabel
3
Crimphülse
4
Verbindungsabschnitt
20
Kabelmantel
21
Leiter
22
Schirmgeflecht
30
erster Crimpabschnitt
31
Ringabschnitt
32
Innenmantel
33
Scheitellinie
34
Außenmantel
35
Kabeleingriff
36
Halteabschnitt
40
zweiter Crimpabschnitt
41
Ringelement
42
Nut
100
Steckverbinder
101
Halteabschnitt
Cable strain relief and connectors with cable strain relief
1
Cable strain relief
2
electric wire
3
crimp barrel
4
connecting portion
20
cable sheath
21
ladder
22
braided shield
30
first crimping section
31
ring section
32
inner sheath
33
crest line
34
outer sheath
35
cable engagement
36
holding section
40
second crimping section
41
ring element
42
groove
100
Connectors
101
holding section

Claims (9)

Kabelzugentlastung (1) für ein an einem Steckverbinder (100) anzuschließendes freies Ende eines geschirmten Kabels (2) mit einem Kabelmantel (20) und mit einem Schirmgeflecht (22), welches in den Kabelmantel (20) an dessen Ende zurückgefaltet ist, wobei die Kabelzugentlastung (1) eine Crimphülse (3) und einen Verbindungsabschnitt (4) zur Befestigung an einem Steckverbinder (100) aufweist, dadurch gekennzeichnet, dass die Crimphülse (3) zwei zueinander beabstandete Crimpabschnitte (30, 40) mit Kabeleingriffen (35) aufweist.A cable strain relief (1) for a free end of a shielded cable (2) to be connected to a connector (100) having a cable sheath (20) and a braided shield (22) folded back into the cable sheath (20) at the end thereof Cable strain relief (1) has a crimping sleeve (3) and a connecting portion (4) for attachment to a connector (100), characterized in that the crimping sleeve (3) has two spaced-apart crimping sections (30, 40) with cable engagements (35). Kabelzugentlastung (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass die Crimpabschnitte (30, 40) im wesentlichen als durchgängige ringförmige Crimpabschnitte ausgebildet sind.Cable strain relief (1) according to claim 1, characterized in that the crimping portions (30, 40) are formed substantially as continuous annular crimping sections. Kabelzugentlastung (1) gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Crimpabschnitt (30) über einen am Innenmantel (32) der Crimphülse (3) hervorstehenden Ringabschnitt (31) verfügt und der Ringabschnitt (31) als Kabeleingriff (35) dient.Cable strain relief (1) according to claim 1 or 2, characterized in that the crimping section (30) has a ring section (31) projecting on the inner casing (32) of the crimping sleeve (3) and the ring section (31) serves as cable engagement (35). Kabelzugentlastung (1) gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kabeleingriff (35) und damit der Ringabschnitt (31) entlang seiner dem Kabelmantel zugewandten Scheitellinie (33) mit einer spitzenförmigen Kontur ausgebildet ist zum Eindringen in den Kabelmantel (20).Cable strain relief (1) according to one of the preceding claims, characterized in that the cable engagement (35) and thus the ring portion (31) along its cable jacket facing crest line (33) is formed with a pointed contour for penetration into the cable sheath (20). Kabelzugentlastung (1) gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der zweite Crimpabschnitt (40) über eine am Innenmantel (32) der Crimphülse (3) ausgebildete ringförmige Nut (42) verfügt.Cable strain relief (1) according to one of the preceding claims, characterized in that the second crimping section (40) has an annular groove (42) formed on the inner casing (32) of the crimping sleeve (3). Kabelzugentlastung (1) gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet dass ferner ein zu der Nut (42) korrespondierendes Ringelement (41) zum Aufbringen auf dem Kabelmantel (20) und zum Eingriff in die Nut (42) vorgesehen ist.Cable strain relief (1) according to one of the preceding claims, characterized in that further to the groove (42) corresponding ring element (41) for application to the cable sheath (20) and for engagement in the groove (42) is provided. Kabelzugentlastung (1) gemäß Anspruch 6, dadurch gekennzeichnet, dass das Ringelement (41) in seiner Form so korrespondierend zur Nut (42) ausgebildet ist, dass das Schirmgeflecht (22) zwischen dem Ringelement (41) und der Nut (42) angeordnet, vorzugsweise zwischen diese zurückgefaltet werden kann.Cable strain relief (1) according to claim 6, characterized in that the ring element (41) is designed in its shape corresponding to the groove (42) that the braided shield (22) between the ring member (41) and the groove (42) arranged preferably can be folded back between them. Steckverbinder (100) umfassend eine Kabelzugentlastung (1) gemäß einem der Ansprüche 1 bis 7.Connector (100) comprising a cable strain relief (1) according to one of claims 1 to 7. Steckverbinder (100) gemäß Anspruch 8, dadurch gekennzeichnet, dass der Steckverbinder (100) über einen Halteabschnitt (101) zur Befestigung am Verbindungsabschnitt (4) der Kabelzugentlastung (1) aufweist.Connector (100) according to claim 8, characterized in that the connector (100) via a holding portion (101) for attachment to the connecting portion (4) of the cable strain relief (1).
EP12002723.0A 2011-06-01 2012-04-19 Connector with cable tension release Active EP2530785B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011101380U DE202011101380U1 (en) 2011-06-01 2011-06-01 Cable strain relief and connectors with cable strain relief

Publications (2)

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EP2530785A1 true EP2530785A1 (en) 2012-12-05
EP2530785B1 EP2530785B1 (en) 2018-04-04

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DE (1) DE202011101380U1 (en)

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DE202011101380U1 (en) 2011-08-08
EP2530785B1 (en) 2018-04-04

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