EP2302743A1 - Cable clamp with a clamp element - Google Patents

Cable clamp with a clamp element Download PDF

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Publication number
EP2302743A1
EP2302743A1 EP10009867A EP10009867A EP2302743A1 EP 2302743 A1 EP2302743 A1 EP 2302743A1 EP 10009867 A EP10009867 A EP 10009867A EP 10009867 A EP10009867 A EP 10009867A EP 2302743 A1 EP2302743 A1 EP 2302743A1
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EP
European Patent Office
Prior art keywords
cable
clamping element
fingers
clamping
wedges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10009867A
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German (de)
French (fr)
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EP2302743B1 (en
Inventor
Marc Lindkamp
Andreas Kohler
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Harting Electronics GmbH and Co KG
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Harting Electronics GmbH and Co KG
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Publication date
Application filed by Harting Electronics GmbH and Co KG filed Critical Harting Electronics GmbH and Co KG
Publication of EP2302743A1 publication Critical patent/EP2302743A1/en
Application granted granted Critical
Publication of EP2302743B1 publication Critical patent/EP2302743B1/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
    • H01R13/5812—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 the cable clamping being achieved by mounting the separate part on the housing of the coupling device
    • 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
    • H01R13/59—Threaded ferrule or bolt operating in a direction parallel to the cable or wire

Definitions

  • the invention relates to a device for fixing an electrical cable connected to a connector, consisting of a connector housing with an integrally formed, cylindrical cable receptacle into which a clamping element can be inserted and displaced by means of a pressure screw in the cable receptacle.
  • Such a device is needed to clamp a connected to contact elements of a connector cable and to fix the connector housing. Occurring tensile forces on the cable should be recorded and the contact terminals of the connector, where the cable is contacted, be relieved.
  • a cable gland which has a lower part, a union nut and a sealing insert, wherein the sealing insert is arranged in the union nut and decreases with increasing axial tension between the lower part and the union nut the cross section.
  • crown spring An often used variant for the strain relief of electrical cables is the so-called crown spring.
  • the crown spring comprises the cable and is pressed together by pressing by means of a pressure screw in a conical shell at the connector end and holds the cable in the connector.
  • the invention is therefore based on the object of specifying a device for jamming a cable to a connector, which prevents twisting of the cable during the clamping process and is suitable for cables with different diameters.
  • the clamping element comprises a plurality of fingers, which are combined at one end in a ring structure, that the fingers have two different shapes, wherein a first form as a guide finger and a second form is designed as a clamping finger, and wherein the guide fingers and the clamping fingers alternately arranged to form the ring structure of the clamping element, the clamping fingers having a wedge-shaped end and the guide fingers having a smooth end formed in the cable receiver axially spaced from the insertion, progressively inwardly extending and spaced apart wedges within the cable receiving a thread is formed, that in the areas where the wedges are formed having a longitudinal recess, and that when joining the clamping element with the pressure screw in the cable receptacle, the clamping fingers of the clamping element with the wedge-shaped ends on the wedges of the cable receptacle to meet and increasingly reduce the inner diameter, so that a guided inside the clamping element cable is fixed.
  • the invention is a device which is required to clamp a cable which is connected to a connector, and thereby to absorb high, acting on the cable tensile forces and to relieve the terminals in the connector.
  • the advantages achieved by the invention are in particular that a distortion of the cable occurring during similar devices is prevented during assembly on the connector.
  • the jamming of cables with a wider range of different diameters is possible with the same device, without having to use parts tailored to each diameter.
  • a connector housing is provided with a cylindrical cable receptacle for receiving an electrical cable.
  • a clamping element is inserted for fixing the received cable, which is axially displaceable by means of a pressure screw in the cable receptacle.
  • the clamping element is a substantially annular formed part which has a plurality of axially aligned fingers connected at one end, forming the ring structure of the clamping element.
  • the fingers have two different shapes.
  • a first form of finger is designed as a guide finger and a second form of finger is designed as a clamping finger.
  • the guide fingers and clamping fingers are alternately arranged in the ring structure.
  • the clamping fingers are provided in the radial direction with a thickening.
  • the thickening flattens in the front, first to be introduced into the cable holder Part off, whereby at the clamping fingers a wedge-shaped end is formed.
  • the clamping fingers are attached via a thin, flexible web in the ring structure.
  • the guide fingers of the clamping element are made smooth on their outer surface and rigidly attached to the ring structure.
  • the cable receptacle is formed substantially as a cylindrical Anformung on the connector housing. Axially spaced from the insertion end wedges are formed in the cable receptacle, which increasingly extend inwards. From the insertion end to the wedges, a thread is also formed in the cable holder, which is suitable for receiving the pressure screw.
  • the thread is provided in the areas where the wedges are formed with longitudinal recesses. In the longitudinal recesses slide during assembly of the clamping element with the cable receiving the thickened clamping fingers of the clamping element.
  • the pressure screw is a substantially shaped as a hollow cylinder body.
  • the connector facing area has a cylindrical thread that is complementary to the thread of the cable receptacle.
  • the pressure screw has a grip area which is conveniently provided with projections or formations for better operation of the pressure screw.
  • the cable to be connected is to lead.
  • the inner hollow portion of the pressure screw is provided with a seal to prevent the ingress of water and dirt.
  • the clamping element has on the side facing the pressure screw on locking means.
  • the latching means which are preferably attached to the back of the guide arms, in one, the pressure screw front molded, circumferential latching groove can be latched.
  • the clamping element is thus integrally connected for mounting with the pressure screw and yet axially rotatable.
  • a connector housing 1 with a cable clamp shown in a three-dimensional view.
  • a plug-in area (not shown further) is provided which serves to receive contact elements.
  • a cable receptacle 2 with a positioned before the insertion end 3 clamping element 10 and a pressure screw 20th
  • the pressure screw 20 formed as a hollow cylinder essentially has a cylindrical thread 22 and a grip region 23. Before the thread 22 is a, provided for locking the clamping element 10 locking groove 21st
  • An electrical cable 8 to be connected is guided by the pressure screw 20 and the clamping element 10 into the connector housing 1.
  • clamping element 10 consists of five guide fingers 12 and five clamping fingers 13 which are arranged axially, at their, the connector housing 1 opposite end to a ring structure 11 are summarized. It can be seen that the clamping fingers 13 are formed radially thicker than the guide fingers 12, and have a wedge-shaped end 14. When assembling the clamping element 10 with the cable holder 2, the thickened clamping fingers 13 are guided in longitudinal recesses 6 in the cable holder 2, so that a rotation of the clamping element 10 is prevented.
  • the ring structure 11 also has latching means 16 which serve to latch the clamping element 10 to the pressure screw 20.
  • latching means 16 which serve to latch the clamping element 10 to the pressure screw 20.
  • a provided for this purpose on the pressure screw 20 locking groove 21 ensures against each rotation of the clamping element 10 and pressure screw 20th
  • Fig. 3 the cable receptacle 2 is shown from the direction of its insertion end 3.
  • five wedges 4 are formed here, which increasingly extend radially inwardly.
  • Number and distance of Wedges 4 to each other, are designed according to the number and the distance of the clamping fingers 13 of the clamping element 10.
  • a thread 5 is formed in the cable receptacle 2, in which the pressure screw 20 can be screwed.
  • longitudinal recesses 6 are provided in the thread 5, which extend from the insertion end 3 to the wedges 4.
  • Fig. 4 shows a Jardinklemmung shown in cross-section, but without electrical cable.
  • the pressure screw 20 is only screwed into the cable receptacle 2 so far that the wedge-shaped ends 14 of the clamping fingers 13 just meet the wedges 4 in the cable receptacle 2.
  • a Jardinklemmung with an electric cable 8 and a partially screwed pressure screw 20 is shown.
  • the resulting tapered diameter between the clamping fingers 13 then leads to a fixation of the clamping element 10 passed through electrical cable.

Abstract

The device has a clamping element (10) which is inserted into cable receptacle (2) mounted on a connector housing (1). The clamping element has guiding fingers and clamping fingers which are arranged alternatively to form ring structure (11). The fingers are axially guided in the longitudinal recess of thread. The wedge-shaped ends of clamping element are in contact with wedges of cable receptacle to reduce the diameter when the clamping element is screwed into receptacle such that cable is fixed between clamping elements.

Description

Beschreibungdescription

Die Erfindung betrifft eine Vorrichtung zur Fixierung eines mit einem Steckverbinder verbundenen elektrischen Kabels, bestehend aus einem Steckverbindergehäuse mit einer angeformten, zylindrischen Kabelaufnahme, in die ein Klemmelement einfügbar und mittels einer Druckschraube in der Kabelaufnahme verschiebbar ist.The invention relates to a device for fixing an electrical cable connected to a connector, consisting of a connector housing with an integrally formed, cylindrical cable receptacle into which a clamping element can be inserted and displaced by means of a pressure screw in the cable receptacle.

Eine derartige Vorrichtung wird benötigt, um ein an Kontaktelementen eines Steckverbinders angeschlossenes Kabel zu verklemmen und am Steckverbindergehäuse zu fixieren. Auftretende Zugkräfte am Kabel sollen aufgenommen und die Kontaktanschlüsse des Steckverbinders, an denen das Kabel kontaktiert ist, entlastet werden.Such a device is needed to clamp a connected to contact elements of a connector cable and to fix the connector housing. Occurring tensile forces on the cable should be recorded and the contact terminals of the connector, where the cable is contacted, be relieved.

Stand der TechnikState of the art

Im Stand der Technik sind bereits einige Lösungen zur Befestigung von Kabeln an Steckverbindern bekannt.In the prior art, some solutions for attaching cables to connectors are already known.

In der EP09080995A1 ist eine Kabelverschraubung gezeigt, die ein Unterteil, eine Überwurfmutter und ein Dichteinsatz aufweist, wobei der Dichteinsatz in der Überwurfmutter angeordnet ist und mit zunehmender axialer Verspannung zwischen dem Unterteil und der Überwurfmutter den Querschnitt verkleinert.In the EP09080995A1 a cable gland is shown, which has a lower part, a union nut and a sealing insert, wherein the sealing insert is arranged in the union nut and decreases with increasing axial tension between the lower part and the union nut the cross section.

Eine oft genutzte Variante für die Zugentlastung von elektrischen Kabeln stellt die so genannte Kronenfeder dar.An often used variant for the strain relief of electrical cables is the so-called crown spring.

Dabei umfasst die Kronenfeder das Kabel und wird durch Eindrücken mittels einer Druckschraube in eine konische Hülle am Steckverbinderende zusammengepresst und hält das Kabel so im Steckverbinder.In this case, the crown spring comprises the cable and is pressed together by pressing by means of a pressure screw in a conical shell at the connector end and holds the cable in the connector.

Nachteilig wirkt sich dabei aus, dass beim Verschrauben der Zugentlastung ein Verdrehen der Kronenfeder bzw. des Dichteinsatzes unvermeidbar ist. Dies kann wiederum zu einer Verdrehung des geklemmten Kabels führen, was wiederum zu einer Verletzung der einzelnen Adern im Kabel führen kann. Zudem sind solche Vorrichtung für jeweils nur bestimmte Kabeldurchmesser geeignet. Für verschiedene Durchmesser müssen somit verschiedene Kronenfedern oder Dichteinsätze zur Verfügung stehen.The disadvantage here is that when screwing the strain relief twisting of the crown spring or the sealing insert is unavoidable. This in turn can lead to a twisting of the clamped cable, which in turn can lead to injury of the individual wires in the cable. In addition, such device are suitable for each specific cable diameter. Different crown springs or sealing inserts must therefore be available for different diameters.

Aufgabenstellungtask

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur Verklemmung eines Kabels an einem Steckverbinder anzugeben, die eine Verdrehung des Kabels beim Klemmvorgang verhindert und dabei für Kabel mit verschiedenen Durchmessern geeignet ist.The invention is therefore based on the object of specifying a device for jamming a cable to a connector, which prevents twisting of the cable during the clamping process and is suitable for cables with different diameters.

Diese Aufgabe wird dadurch gelöst, dass das Klemmelement mehrere Finger aufweist, die an einem Ende in einer Ringstruktur zusammengefasst sind, dass die Finger zwei unterschiedliche Formen aufweisen, wobei eine erste Form als Führungsfinger und eine zweite Form als Klemmfinger ausgebildet ist, und wobei die Führungsfinger und die Klemmfinger abwechselnd angeordnet, die Ringstruktur des Klemmelementes bilden, dass die Klemmfinger ein keilförmiges Ende aufweisen und die Führungsfinger ein glattes Ende, dass in der Kabelaufnahme, axial beabstandet vom Einführende, sich zunehmend nach innen erstreckende und von einander beabstandete Keile angeformt sind, dass innerhalb der Kabelaufnahme ein Gewinde eingeformt ist, dass in den Bereichen an denen die Keile angeformt sind eine Längsausnehmung aufweist, und dass beim Zusammenfügen des Klemmelementes mit der Druckschraube in die Kabelaufnahme, die Klemmfinger des Klemmelementes mit den keilförmigen Enden auf die Keile der Kabelaufnahme treffen und den Innendruchmesser zunehmend verringern, sodass ein innerhalb des Klemmelementes geführtes Kabel fixiert wird.This object is achieved in that the clamping element comprises a plurality of fingers, which are combined at one end in a ring structure, that the fingers have two different shapes, wherein a first form as a guide finger and a second form is designed as a clamping finger, and wherein the guide fingers and the clamping fingers alternately arranged to form the ring structure of the clamping element, the clamping fingers having a wedge-shaped end and the guide fingers having a smooth end formed in the cable receiver axially spaced from the insertion, progressively inwardly extending and spaced apart wedges within the cable receiving a thread is formed, that in the areas where the wedges are formed having a longitudinal recess, and that when joining the clamping element with the pressure screw in the cable receptacle, the clamping fingers of the clamping element with the wedge-shaped ends on the wedges of the cable receptacle to meet and increasingly reduce the inner diameter, so that a guided inside the clamping element cable is fixed.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 - 4 angegeben.Advantageous embodiments of the invention are specified in claims 2-4.

Bei der Erfindung handelt es sich um eine Vorrichtung die benötigt wird, um ein Kabel, das an einem Steckverbinder angeschlossen ist, an diesem zu verklemmen und dadurch hohe, auf das Kabel wirkende Zugkräfte aufzunehmen und die Anschlüsse im Steckverbinder zu entlasten.In the invention, it is a device which is required to clamp a cable which is connected to a connector, and thereby to absorb high, acting on the cable tensile forces and to relieve the terminals in the connector.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass eine bei ähnlichen Vorrichtungen auftretende Verdrehung des Kabels während der Montage am Steckverbinder verhindert wird. Zudem ist die Verklemmung von Kabeln mit einer größeren Bandbreite unterschiedlicher Durchmesser mit derselben Vorrichtung möglich, ohne auf jeden Durchmesser abgestimmte Teile einsetzen zu müssen.The advantages achieved by the invention are in particular that a distortion of the cable occurring during similar devices is prevented during assembly on the connector. In addition, the jamming of cables with a wider range of different diameters is possible with the same device, without having to use parts tailored to each diameter.

Ein Steckverbindergehäuse ist zur Aufnahme eines elektrischen Kabels mit einer zylindrischen Kabelaufnahme versehen. In die Kabelaufnahme wird zur Fixierung des aufgenommenen Kabels ein Klemmelement eingefügt, das mittels einer Druckschraube axial in der Kabelaufnahme verschiebbar ist.A connector housing is provided with a cylindrical cable receptacle for receiving an electrical cable. In the cable receiving a clamping element is inserted for fixing the received cable, which is axially displaceable by means of a pressure screw in the cable receptacle.

Das Klemmelement ist ein im wesentlichen ringförmig ausgebildetes Teil, das über mehrere axial ausgerichtete Finger verfügt, die an einem Ende verbunden, die Ringstruktur des Klemmelementes bilden. Die Finger weisen zwei verschiedene Formen auf. Eine erste Form von Fingern ist als Führungsfinger ausgebildet und eine zweite Form von Fingern ist als Klemmfinger ausgebildet. Die Führungsfinger und Klemmfinger sind abwechselnd in der Ringstruktur angeordnet.The clamping element is a substantially annular formed part which has a plurality of axially aligned fingers connected at one end, forming the ring structure of the clamping element. The fingers have two different shapes. A first form of finger is designed as a guide finger and a second form of finger is designed as a clamping finger. The guide fingers and clamping fingers are alternately arranged in the ring structure.

Die Klemmfinger sind in radialer Richtung mit einer Verdickung versehen. Die Verdickung flacht im vorderen, zuerst in die Kabelaufnahme einzubringenden Teil ab, wodurch an den Klemmfingern ein keilförmiges Ende gebildet wird. Im hinteren Bereich sind die Klemmfinger über einen dünnen, flexiblen Steg in der Ringstruktur angebracht.The clamping fingers are provided in the radial direction with a thickening. The thickening flattens in the front, first to be introduced into the cable holder Part off, whereby at the clamping fingers a wedge-shaped end is formed. In the rear area, the clamping fingers are attached via a thin, flexible web in the ring structure.

Die Führungsfinger des Klemmelementes sind an ihrer außen liegenden Fläche glatt ausgeführt und starr an der Ringstruktur angebracht.The guide fingers of the clamping element are made smooth on their outer surface and rigidly attached to the ring structure.

Die Kabelaufnahme ist im wesentlichen als zylindrische Anformung am Steckverbindergehäuse angeformt. Axial beabstandet vom Einführende sind Keile in der Kabelaufnahme angeformt, die sich zunehmend nach innen erstrecken. Vom Einführende bis zu den Keilen ist zudem ein Gewinde in die Kabelaufnahme eingeformt, das zur Aufnahme der Druckschraube geeignet ist.The cable receptacle is formed substantially as a cylindrical Anformung on the connector housing. Axially spaced from the insertion end wedges are formed in the cable receptacle, which increasingly extend inwards. From the insertion end to the wedges, a thread is also formed in the cable holder, which is suitable for receiving the pressure screw.

Das Gewinde ist in den Bereichen, in denen die Keile angeformt sind mit Längsausnehmungen versehen. In den Längsausnehmungen gleiten beim Zusammenfügen des Klemmelementes mit der Kabelaufnahme die verdickten Klemmfinger des Klemmelementes.The thread is provided in the areas where the wedges are formed with longitudinal recesses. In the longitudinal recesses slide during assembly of the clamping element with the cable receiving the thickened clamping fingers of the clamping element.

Die Druckschraube ist ein im wesentlichen als Hohlzylinder geformter Körper. Im vorderen, dem Steckverbinder zugewandten Bereich verfügt sie über ein zylindrisches Gewinde, das komplementär zu dem Gewinde der Kabelaufnahme ist. Im hinteren, dem Steckverbinder abgewandten Bereich verfügt die Druckschraube über einen Griffbereich der zweckmäßig mit An- oder Ausformungen zur besseren Betätigung der Druckschraube versehen ist. Durch den inneren, hohlen Bereich der Druckschraube ist das anzuschließende Kabel zu führen.The pressure screw is a substantially shaped as a hollow cylinder body. In the front, the connector facing area has a cylindrical thread that is complementary to the thread of the cable receptacle. In the rear, facing away from the connector area, the pressure screw has a grip area which is conveniently provided with projections or formations for better operation of the pressure screw. Through the inner, hollow area of the pressure screw, the cable to be connected is to lead.

In einer vorteilhaften Weiterbildung ist der innere, hohle Bereich der Druckschraube mit einer Dichtung versehen, um das Eindringen von Wasser und Schmutz zu verhindern.In an advantageous development of the inner hollow portion of the pressure screw is provided with a seal to prevent the ingress of water and dirt.

Beim Zusammenfügen des Klemmelementes mit der Druckschraube in die Kabelaufnahme werden die Klemmfinger des Klemmelementes in den Längsausnehmungen des Gewindes axial geführt, wodurch bereits ein anfängliches Verdrehen des Klemmelementes verhindert wird. Im Bereich der Keile werden die Führungsfinger zwischen den Keilen geführt, sodass ein Verdrehen des Klemmelementes wirksam verhindert wird.When assembling the clamping element with the pressure screw in the cable receiving the clamping fingers of the clamping element are axially guided in the longitudinal recesses of the thread, whereby already an initial rotation of the clamping element is prevented. In the area of the wedges, the guide fingers are guided between the wedges, so that twisting of the clamping element is effectively prevented.

Treffen beim Zusammenfügen die Klemmfinger auf die angeformten Keile, wirken die keilförmigen Enden der Klemmfinger mit den Keilen zusammen, wodurch der Durchmesser zwischen den Klemmfingern sich zunehmend verringert. Ein innerhalb des Klemmelementes geführtes, elektrisches Kabel wird so zwischen den Klemmfingern fixiert, ohne dass es vom Klemmelement verdreht wird.When joining the clamping fingers meet the molded wedges, the wedge-shaped ends of the clamping fingers cooperate with the wedges, whereby the diameter between the clamping fingers is increasingly reduced. A guided inside the clamping element, electrical cable is thus fixed between the clamping fingers, without being twisted by the clamping element.

In einer bevorzugten Ausbildungsform verfügt das Klemmelement an der, der Druckschraube zugewandten Seite über Rastmittel. Die Rastmittel, die vorzugsweise rückseitig an den Führungsarmen angebracht sind, sind in einer, der Druckschraube frontseitig eingeformten, umlaufenden Rastnut einrastbar. Das Klemmelement ist somit zur Montage mit der Druckschraube einstückig verbunden und dennoch axial verdrehbar.In a preferred embodiment, the clamping element has on the side facing the pressure screw on locking means. The latching means, which are preferably attached to the back of the guide arms, in one, the pressure screw front molded, circumferential latching groove can be latched. The clamping element is thus integrally connected for mounting with the pressure screw and yet axially rotatable.

Ausführungsbeispielembodiment

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

Fig. 1
ein Steckverbindergehäuse mit einer Kabelklemmung in räumlicher, gestaffelter Ansicht,
Fig. 2
ein Klemmelement in räumlicher Ansicht aus Steckrichtung,
Fig. 3
den Blick auf das Einführende des Steckverbindergehäuses,
Fig. 4
eine Schnittdarstellung des Einführendes des Steckverbindergehäu- ses mit der Kabelklemmung, und
Fig. 5
eine verschraubte Kabelklemmung mit einem elektrischen Kabel im Querschnitt.
An embodiment of the invention is illustrated in the drawing and will be explained in more detail below. Show it:
Fig. 1
a connector housing with a cable clamp in a spatial, staggered view,
Fig. 2
a clamping element in a spatial view from the direction of insertion,
Fig. 3
the view of the insertion end of the connector housing,
Fig. 4
a sectional view of the insertion end of the connector housing with the cable clamp, and
Fig. 5
a screwed cable clamp with an electrical cable in cross section.

In der Fig.1 ist ein Steckverbindergehäuse 1 mit einer Kabelklemmung in einer räumlichen Darstellung gezeigt. Im hier links abgebildeten Teil des Steckverbindergehäuses 1 ist ein nicht weiter gezeigter Steckbereich vorgesehen, der zur Aufnahme von Kontaktelementen dient. Daran schließt sich eine Kabelaufnahme 2 an, mit einem vor dessen Einführende 3 positioniertem Klemmelement 10 und einer Druckschraube 20.In the Fig.1 is a connector housing 1 with a cable clamp shown in a three-dimensional view. In the part of the connector housing 1 shown here on the left, a plug-in area (not shown further) is provided which serves to receive contact elements. This is followed by a cable receptacle 2, with a positioned before the insertion end 3 clamping element 10 and a pressure screw 20th

Die als Hohlzylinder geformte Druckschraube 20 weist im Wesentlichen ein zylindrisches Gewinde 22 und einen Griffbereich 23 auf. Vor dem Gewinde 22 befindet sich eine, zur Anrastung des Klemmelementes 10 vorgesehene Rastnut 21.The pressure screw 20 formed as a hollow cylinder essentially has a cylindrical thread 22 and a grip region 23. Before the thread 22 is a, provided for locking the clamping element 10 locking groove 21st

Ein anzuschließendes elektrisches Kabel 8 wird durch die Druckschraube 20 und das Klemmelement 10 in das Steckverbindergehäuse 1 geführt.An electrical cable 8 to be connected is guided by the pressure screw 20 and the clamping element 10 into the connector housing 1.

Das in Fig. 2 dargestellte Klemmelement 10 besteht aus hier fünf Führungsfingern 12 und fünf Klemmfingern 13 die axial angeordnet, an ihrem, dem Steckverbindergehäuse 1 abgewandten Ende zu einer Ringstruktur 11 zusammengefasst sind. Zu erkennen ist, dass die Klemmfinger 13 radial dicker als die Führungsfinger 12 ausgebildet sind, und ein keilförmiges Ende 14 aufweisen. Beim Zusammenfügen des Klemmelementes 10 mit der Kabelaufnahme 2 werden die verdickten Klemmfinger 13 in Längsausnehmungen 6 in der Kabelaufnahme 2 geführt, so dass ein Verdrehen des Klemmelementes 10 verhindert wird.This in Fig. 2 shown clamping element 10 consists of five guide fingers 12 and five clamping fingers 13 which are arranged axially, at their, the connector housing 1 opposite end to a ring structure 11 are summarized. It can be seen that the clamping fingers 13 are formed radially thicker than the guide fingers 12, and have a wedge-shaped end 14. When assembling the clamping element 10 with the cable holder 2, the thickened clamping fingers 13 are guided in longitudinal recesses 6 in the cable holder 2, so that a rotation of the clamping element 10 is prevented.

Die Ringstruktur 11 weist zudem Rastmittel 16 auf, die zur Anrastung des Klemmelementes 10 an der Druckschraube 20 dienen. Eine hierfür an der Druckschraube 20 vorgesehene Rastnut 21 gewährleistet ein gegeneinander Verdrehen von Klemmelement 10 und Druckschraube 20.The ring structure 11 also has latching means 16 which serve to latch the clamping element 10 to the pressure screw 20. A provided for this purpose on the pressure screw 20 locking groove 21 ensures against each rotation of the clamping element 10 and pressure screw 20th

In Fig. 3 ist die Kabelaufnahme 2 aus Richtung ihres Einführendes 3 gezeigt. In axialer Beabstandung vom Einführende 3 sind hier fünf Keile 4 angeformt, die sich zunehmend radial nach innen erstrecken. Anzahl und Abstand der Keile 4 zueinander, sind entsprechend der Zahl und des Abstandes der Klemmfinger 13 des Klemmelementes 10 ausgelegt.In Fig. 3 the cable receptacle 2 is shown from the direction of its insertion end 3. In axial spacing from the insertion end 3 five wedges 4 are formed here, which increasingly extend radially inwardly. Number and distance of Wedges 4 to each other, are designed according to the number and the distance of the clamping fingers 13 of the clamping element 10.

Vom Einführende 3 bis zu den Keilen 4 ist in die Kabelaufnahme 2 ein Gewinde 5 eingeformt, in welches die Druckschraube 20 einschraubbar ist. Im Bereich der Keile 4 sind Längsausnehmungen 6 im Gewinde 5 vorgesehen, die sich vom Einführende 3 bis zu den Keilen 4 erstrecken.From the insertion end 3 to the wedges 4, a thread 5 is formed in the cable receptacle 2, in which the pressure screw 20 can be screwed. In the region of the wedges 4 longitudinal recesses 6 are provided in the thread 5, which extend from the insertion end 3 to the wedges 4.

Fig. 4 zeigt eine im Querschnitt dargestellte Kabelklemmung, jedoch ohne elektrisches Kabel.
Die Druckschraube 20 ist nur soweit in die Kabelaufnahme 2 eingeschraubt, dass die keilförmigen Enden 14 der Klemmfinger 13 gerade auf die Keile 4 in der Kabelaufnahme 2 treffen. Zudem ist im mittleren Bereich der Schnittdarstellung zu erkennen, wie die Führungsfinger 12 zwischen den Keilen 4 geführt werden. Fig. 4 shows a Kabelklemmung shown in cross-section, but without electrical cable.
The pressure screw 20 is only screwed into the cable receptacle 2 so far that the wedge-shaped ends 14 of the clamping fingers 13 just meet the wedges 4 in the cable receptacle 2. In addition, it can be seen in the middle region of the sectional view how the guide fingers 12 are guided between the wedges 4.

In Fig. 5 ist eine Kabelklemmung mit einem elektrischen Kabel 8 und einer teilweise eingeschraubten Druckschraube 20 dargestellt.
Die durch die Druckschraube 20 erzeugte axial-radiale Verschiebung des Klemmelementes 10 in die Kabelaufnahme 2, führt zu einem Zusammenwirken der keilförmigen Enden 14 der Klemmfinger 13 mit den Keilen 4. Der daraus sich verjüngende Durchmesser zwischen den Klemmfingern 13 führt dann zu einer Fixierung des durch das Klemmelement 10 hindurchgeführten elektrischen Kabels 8.In Fig. 5 a Kabelklemmung with an electric cable 8 and a partially screwed pressure screw 20 is shown.
The generated by the pressure screw 20 axial-radial displacement of the clamping element 10 in the cable receptacle 2, leads to an interaction of the wedge-shaped ends 14 of the clamping fingers 13 with the wedges 4. The resulting tapered diameter between the clamping fingers 13 then leads to a fixation of the clamping element 10 passed through electrical cable. 8

BezugszeichenlisteLIST OF REFERENCE NUMBERS Kabelklemmung mit einem KlemmelementCable clamping with a clamping element Az.: P 209-12 EP P 9Az .: P 209-12 EP P 9

11
Steckverbindergehäuseconnector housing
22
Kabelaufnahmecable storage
33
Einführendeintroductory
44
Keilewedges
55
Gewindethread
66
Längsausnehmungen im GewindeLongitudinal recesses in the thread
88th
elektrisches Kabelelectrical cable
1010
Klemmelementclamping element
1111
Ringstrukturring structure
1212
Führungsfingerguide fingers
1313
Klemmfingerclamping fingers
1414
keilförmiges Endewedge-shaped end
1515
glattes Endesmooth finish
1616
Rastmittellatching means
2020
Druckschraubepressure screw
2121
Rastnutlocking groove
2222
Gewindethread
2323
Griffbereichgrip area

Claims (4)

Vorrichtung zur Fixierung eines mit einem Steckverbinder verbundenen elektrischen Kabels (8), bestehend aus einem Steckverbindergehäuse (1) mit einer angeformten, zylindrischen Kabelaufnahme (2), in die ein Klemmelement (10) einfügbar und mittels einer Druckschraube (20) in der Kabelaufnahme (2) verschiebbar ist, dadurch gekennzeichnet,
dass das Klemmelement (10) mehrere Finger aufweist, die an einem Ende in einer Ringstruktur (11) zusammengefasst sind,
dass die Finger zwei unterschiedliche Formen aufweisen, wobei eine erste Form als Führungsfinger (12) und eine zweite Form als Klemmfinger (13) ausgebildet ist, und wobei die Führungsfinger (12) und die Klemmfinger (13) abwechselnd angeordnet, die Ringstruktur (11) des Klemmelementes (10) bilden,
dass die Klemmfinger (13) ein keilförmiges Ende (14) aufweisen und die Führungsfinger (12) ein glattes Ende (15),
dass in der Kabelaufnahme (2), axial beabstandet vom Einführende (3), sich zunehmend nach innen erstreckende und von einander beabstandete Keile (4) angeformt sind,
dass innerhalb der Kabelaufnahme (2) ein Gewinde (5) eingeformt ist, das in den Bereichen an denen die Keile (4) angeformt sind eine Längsausnehmung (6) aufweist,
und dass beim Zusammenfügen des Klemmelementes (10) mit der Druckschraube (20) in die Kabelaufnahme (2), die Klemmfinger (13) des Klemmelementes (10) mit den keilförmigen Enden (14) auf die Keile (4) der Kabelaufnahme (2) treffen und den Innendruchmesser zunehmend verringern, sodass ein innerhalb des Klemmelementes (10) geführtes Kabel (8) fixiert wird.Device for fixing an electrical cable (8) connected to a connector, consisting of a connector housing (1) with an integrally formed, cylindrical cable receptacle (2) into which a clamping element (10) can be inserted and by means of a pressure screw (20) in the cable receptacle ( 2) is displaceable, characterized
in that the clamping element (10) has a plurality of fingers which are combined at one end in a ring structure (11),
in that the fingers have two different shapes, wherein a first shape is formed as a guide finger (12) and a second shape as a clamping finger (13), and wherein the guide fingers (12) and the clamping fingers (13) are arranged alternately, the ring structure (11) form the clamping element (10),
in that the clamping fingers (13) have a wedge-shaped end (14) and the guide fingers (12) have a smooth end (15),
that in the cable receptacle (2), axially spaced from the insertion end (3), increasingly inwardly extending and spaced apart wedges (4) are integrally formed,
in that a thread (5) is formed inside the cable receptacle (2), which has a longitudinal recess (6) in the areas where the wedges (4) are formed,
and in that, when the clamping element (10) is assembled with the pressure screw (20) in the cable receptacle (2), the clamping fingers (13) of the clamping element (10) with the wedge-shaped ends (14) on the wedges (4) of the cable receptacle (2) meet and increasingly reduce the inner diameter, so that within the clamping element (10) guided cable (8) is fixed. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet,
dass die Klemmfinger (13) beim Zusammenfügen in den Längsausnehmungen (6) des Gewindes (5) der Kabelaufnahme (2) geführt sind.Device according to claim 1, characterized in that
that the clamping fingers (13) during assembly in the longitudinal recesses (6) of the thread (5) of the cable receptacle (2) are guided. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet,
dass die Führungsfinger (12) beim Zusammenfügen des Klemmelementes (10) mit der Druckschraube (20) zwischen den Keilen (4) im Bereich des Gewindes (5) in der Kabelaufnahme (2) geführt sind, so dass ein Verdrehen des Klemmelementes (10) verhindert wird.Device according to claim 1, characterized in that
in that the guide fingers (12) are guided in the cable receptacle (2) between the wedges (4) in the region of the thread (5) during the assembly of the clamping element (10) with the pressure screw (20), so that a rotation of the clamping element (10) is prevented. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet,
dass das Klemmelement (10) mittels Rastmitteln (16) an der Druckschraube (20) gehalten ist.Device according to claim 1, characterized in that
that the clamping element (10) is held by means of latching means (16) on the pressure screw (20).
EP10009867.2A 2009-09-23 2010-09-17 Cable clamp with a clamp element Active EP2302743B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009042678A DE102009042678B3 (en) 2009-09-23 2009-09-23 Cable clamping with a clamping element

Publications (2)

Publication Number Publication Date
EP2302743A1 true EP2302743A1 (en) 2011-03-30
EP2302743B1 EP2302743B1 (en) 2019-07-10

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ID=43090192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10009867.2A Active EP2302743B1 (en) 2009-09-23 2010-09-17 Cable clamp with a clamp element

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US (1) US7938674B2 (en)
EP (1) EP2302743B1 (en)
CN (1) CN102082354B (en)
DE (1) DE102009042678B3 (en)

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Also Published As

Publication number Publication date
US20110070766A1 (en) 2011-03-24
US7938674B2 (en) 2011-05-10
CN102082354B (en) 2013-02-06
DE102009042678B3 (en) 2011-05-12
CN102082354A (en) 2011-06-01
EP2302743B1 (en) 2019-07-10

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