EP2867966A2 - Connexion de câble vissée pour un câble blindé comprenant un dispositif de contact - Google Patents

Connexion de câble vissée pour un câble blindé comprenant un dispositif de contact

Info

Publication number
EP2867966A2
EP2867966A2 EP13724737.5A EP13724737A EP2867966A2 EP 2867966 A2 EP2867966 A2 EP 2867966A2 EP 13724737 A EP13724737 A EP 13724737A EP 2867966 A2 EP2867966 A2 EP 2867966A2
Authority
EP
European Patent Office
Prior art keywords
cable
contact fingers
contact
clamping insert
ring
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.)
Withdrawn
Application number
EP13724737.5A
Other languages
German (de)
English (en)
Inventor
Thomas Franke
Holger Hummel
Tobias Wolf
Achim Hoch
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.)
Hummel AG
Original Assignee
Hummel AG
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 Hummel AG filed Critical Hummel AG
Publication of EP2867966A2 publication Critical patent/EP2867966A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures
    • H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
    • H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing

Definitions

  • the invention relates to a cable gland for a shielded : cable, for example for a grounding or Able- cable, ...
  • a threaded sleeve of electrically conductive material or metal,. with a] thus connectable via a threaded counter sleeve, namely a pressure screw or a union nut, for fixing the metal mesh or an outer conductor for grounding or shielding the cable interior having cable, with a cable gland belonging to, with the aid of the counter sleeve pressed against the cable terminal insert ,
  • a contact device is provided with a ring and projecting from the ring approximately in the coaxial direction of the cable gland contact fingers, which contact fingers are pivotable and / or bendable by the relative axial movement of the counter sleeve and the clamping insert in their: contact position, wherein ; the contact fingers in their course at a distance from the ring holding them each have a slope inclined to the longitudinal center axis, at weiicher
  • Slope has a convex curvature or an angular shape and rests on a sloping paragraph in the interior of the screw, between these bevels due to their curvature or their angular: shape and the paragraph first a gap remains free. ;
  • the corresponding obliquely shaped end face of the clamping insert or a continuation of this region of the clamping fingers can be pressed against the shoulder, whereby the free ends of the clamping fingers are radially inwardly: deformed and come into contact with the cable or with the shield.
  • this requires in the interior of the screw the above-mentioned inclined paragraph against: which the slope of the clamping fingers are pressed.
  • the initially defined cable gland according to the invention is characterized in that the contact finger holding ring is supported in the interior of the threaded sleeve at one of the inlet opening for the clamping insert remote area arranged stop, the contact fingers of this ring starting with their free ends to the terminal insert directed towards and engage in these in the axial direction and the clamping insert or its continuation in the position of use, the slopes of the contact fingers acted on the outside, wherein the bevels are pivotable.
  • the clamping insert is brought into its use position by actuation of the counter sleeve and thereby moved in the axial direction, this leads ; in that the front side of the clamping insert: or its continuation deforms the bevels acted upon by it radially inwardly due to their pivotability and the oblique angle, so that the free arms are pivoted against the cable and its shielding: and be pressed to it.
  • the clamping insert can therefore be arranged with its region remote from its clamping fingers or a continuation provided there between the free ends of the contact fingers and the inside of the screw and be moved in this area in the axial direction, whereby the contact fingers in the manner described with their free ends radially be pivoted to the inside, because the ring of the contact insert at the same time in the axial direction non-displaceably supported on the stop and the slopes run without impact.
  • An inclined surface in the interior of the screw as a support or stop for curved or angularly shaped bevels of the contact fingers is: avoided and beyond need the free and non-stop arranged slopes on the contact fingers not curved or square shaped. Rather, they may be substantially rectilinear, but could also be convex or concave, because only the edge of the end face of the clamping insert can slide on these bevels in its axial movement and pivot them and : they must not press against a support or counterpart. Accordingly easy is the production of the contact device with the ring and the contact fingers.
  • the stop for the ring is a radially inwardly projecting projection or collar in the interior of the screw sleeve.
  • a circumferential, such projection or collar is easy to produce, and can :: form a uniform stop surface for the ring of the contact insert.
  • the inside arranged in the screw sleeve stop can be integrally connected to the screw.
  • the passage for the cable-free stop can be in the axial direction on the outside flush with the end face of the threaded sleeve ⁇ . In such an arrangement, this stop gets into the . the greatest possible distance to the opposite opening of the screw sleeve and the clamping insert, so that the interior of the
  • Screw sleeve best possible for an effective contact device or a contact insert can be used or can have a short overall length, without having too little space for the deformed contact fingers.
  • the helix angle of the contact fingers in their: course arranged at the same axial height bevels can be relatively to the longitudinal central axis about 80 ° to 20 ° or an intermediate value, in particular 60 ° to 30 °, preferably 45 °, wherein the length of the slopes preferably coincides.
  • a shorter or longer axial adjustment of the clamping screw connection or a continuation of the compression fitting causes a longer or lesser swiveling of the individual contact fingers.
  • the axial extent of the bevels on the contact fingers may be dimensioned such that the part of the contact fingers remote from the retaining ring is displaced radially at least at the radial thickness of the clamping insert or its continuation to the longitudinal central axis (M) at the end of the bevel facing away from the retaining ring.
  • this axial extent of the bevels then : also depends on their angle, so that this slope can be shorter if a relatively steep angle of the slope is provided, while the slope requires a longer extension, when compared to the rest of the contact fingers under a relative : acute angle runs.
  • the distance of the beginning of the bevels from the retaining ring may be about; one eighth or one sixth or one fifth or one fourth or one third or half the length of the free end of the contact fingers from the end of the slope or an intermediate value thereof.
  • the geometry of the individual contact fingers with their slope different; be influenced by the length mass.
  • the free ends of the contact fingers can - expediently starting from the slope - straight and in the starting position parallel or at an acute angle to the longitudinal central axis of the cable gland and bending or umbieguns- free: ends. This is particularly simple geometric shapes and avoids: in the manufacture of the effort to bend the ends of the contact fingers or bend or deform.
  • the free ends of the contact fingers have a in use position, in particular outwardly directed bend, the i coaxially extending, on the front and pressure surface of; Clamping insert or its continuation openly opening slots fit.
  • Such designed contact devices would then be even better applicable in um ⁇ 180 ° turned use within a cable gland, in: which the contact fingers. be bent at an attacking in their course paragraph paragraph within the screw by an axial movement radially inwardly.
  • these outwardly directed turns require space in the form of corresponding slots in the clamping insert or its continuation.
  • the longitudinal section of the retaining ring of the contact insert may have the same thickness as the contact fingers and the inside and the outside of the contact fingers may be flush with the inside and the outside of the retaining ring. This is especially well possible if the entire contact device consists of sheet metal and the contact fingers the longitudinal section of the Continue Ringes. But even a ring made of metallized electrically conductive plastic can bear in terms of dimensions adapted to him contact fingers.
  • a cable gland in which the contact finger bearing ring is supported and the contact fingers at least partially engage in a counterpart, preferably in the terminal insert or a continuation of the clamping insert and protrude so that the free end face of the terminal insert or its continuation on the slopes by the axial adjustment can cause their pivoting against the cable out.
  • the contact device itself need not be axially moved relative to the screw: and do not need to meet: be provided matched sloping surfaces for clamping a finger to the contact associated with curved or square-shaped portion and adapted to each other.
  • Clamping insert could be a separate part, but preferably integrally connected to it and is located on the opposite end of the contact - finger of the clamping insert.
  • Figure 1 is a partially longitudinally sectioned side view of the essential individual parts of the cable gland according to the invention prior to their assembly, wherein a formed from a rotating ring and projecting axially thereof contact fingers Kentakt noticed shown in FIG. 1 can be inserted from above into a screw, in the besides the continuation of the clamping insert fits, which in turn together with a seal in the region of its clamping fingers by a: union nut to a not shown in Fig. 1 cable: is pressed,
  • Figure 2 is a partial longitudinal section of the cable gland according to
  • FIG. 3 shows in an enlarged scale the detail marked in FIG. 2 with the circle A, above all the slope of a contact finger and the end face of a continuation of the clamping insert before its axial adjustment, FIG.
  • Figure 4 is a representation corresponding to FIG. 2 after
  • FIG. 5 shows a representation corresponding to FIG. 3, in relation to FIG. 4: somewhat enlarged scale, whereby the deformation of the clamping fingers is clarified, which due to an end-side stop within the screw sleeve can not dodge in the axial direction,
  • Figure 10 contact device also has a ring with :: Ab- standing contact fingers : has, which have a slope in its course, wherein the ring in the use position on the inside: is supported on a stop within the screw and the axial movement of the clamping insert on the slope of this Contact fingers this deformed radially inwardly or pivoted, the contact fingers at their ends outward bends have: in with respect to their width matching axial slots of the
  • Clamping insert engage on the side facing away from the clamping fingers area.
  • a cable gland fitting is given matching parts in terms of its function, even if the shape or design is different.
  • a generally designated 1 gland used for clamping and fixing a shielded cable 2, in which by stripping a region 3 is exposed with a Ablegitter, which is : in the axial continuation of the clamping region and a clamping insert 4 and a cooperating with this seal 5 sealing.
  • a union nut 7 is provided with a in the field.
  • the passage of the cable 2 arranged inner conical surface 8 at its axial displacement of the clamping area and the clamping fingers 6 and the seal 5 radially presses against the cable 2 and this clamps.
  • this union nut 7 is rotatable with its internal thread relative to an external thread of a threaded sleeve 9 and screwed with this, which at the same time results in the required relative axial movement of this acting as a counter sleeve nut 7.
  • a contactor 11 which is still shown separately in FIGS. 1 and 6, is provided in the interior of the screw sleeve 9 with a contact device designated 10 which has a plurality of contact fingers 11 distributed on a circumference and in use position on the circumference of the cable 2 or its heel 3 has, according to FIG. 4, 5, 9 and 10 abut in i position of use at the area 3 with the shield or an electrical conductor of the cable 2 with a contact end 12.
  • the contact device 10 has a in use position in the threaded sleeve 9 arranged carrier namely a ring 13, from which the resilient contact fingers 11 go out and project in the axial direction.
  • the contact fingers 11 arranged in the starting position essentially parallel to the longitudinal center axis M of the cable gland have a slope 14 which is inclined to the longitudinal center axis M and is free, ie without a stop and is pivotable and on which the end face 15 of the clamping insert 4 or a pressure piece 4a connected to the clamping insert 4 engages in the use position.
  • the pressure piece 4 a is an integral continuation of the clamping insert in the embodiment and the stop on the slope 14 is too extensive axial displacement of the clamping insert during retraction of the nut 7 is prevented. Since the bevel 14 is stop-free on its face remote from the end face 15, it can be slightly bent or pivoted by the end face 15, whereby the contact fingers 11 and their bare contact ends 12 are pivoted radially after them and pressed against the cable portion 3, as the Comparison of Figs. 2 and 4 or Fig. 7 and 9 shows.
  • Figs. 1 and 6 illustrate; and engage in the position of use in the axial direction in the clamping insert 4 and its continuation 4a, which is clearly visible especially in Figs. 2 and 7.
  • the clamping insert 4 or its continuation 4a applied thereto in Gebraüchswolf the slopes 14 of the contact fingers 11 at the: outside, that is, the clamping insert 4 or seie :: Continuation 4a is in the position of use between the inner contact fingers 11 and the inside of the.
  • the contact fingers 11 are thus bent inwardly on the bevel 14 by the clamping insert 4 and its occurring during the jamming small axial displacement and pressed against the region 3 of the cable 2, as shown in Figs. 4, 5, 9 and 10 is shown.
  • the contact fingers are directed with their contact ends 12 against the occurring during jamming axial movement of the clamping insert 4, it requires no special support, relative to which the contact fingers would have to be moved even in the jamming in the axial direction to her after inside : to deform, as it is known for example from DE 894 870.
  • the contact device 10 remain immovable by their axial: support and yet the resilient contact fingers 11 are radially inwardly to the stripped portion of the cable 2 by the axial movement of the clamping insert 4 and the union nut 7; pressed down.
  • the stop 16 for the ring 13 of the contact device 10 is a circumferential inside the screw 9, radially inwardly projecting annular projection or collar, :: which expediently circulates continuously and so a good abutment for the contact device 10 and the ring 13 forms.
  • This is on the inside in the Screwing sleeve 9 while leaving a passage for the cable arranged stop 16 in the ..
  • Exemplary ein Communityig connected to the screw 9 and the outside flush with the end face 9a of the screw 9.
  • the helix angle of the contact fingers 11 in their Ver. Run each on: same axial height arranged bevels 14 is in the embodiment to the longitudinal central axis (M) about 45 °, but could also be larger or possibly smaller.
  • the function of these bevels 14 is particularly clear in Figs. 4, 5, 9 and 10, where it can be seen that due to the relatively small axial displacement of the clamping insert 4 and its continuation 4a due to the tightening of the nut 7; Front side 15 or edge 15a slide along this slope 14 something along and thus bend it in the axial direction, or can pivot, that the free ends or contact ends 12 of the contact fingers 11 are pivoted radially inwardly.
  • the axial extent of the bevels 14 to the contact fingers 11 is dimensioned so that the adjacent of the retaining ring 13 part of the contact fingers 11 at the end facing away from the retaining ring 13 of the bevel 14 radially at least the radial thickness of the clamping insert 4 or its continuation 4a offset from the longitudinal center axis (M).
  • Screw sleeve 9 fits
  • Areas of contact fingers 11 different have lengths. In the illustrated examples, it is provided that the distance of the beginning of the bevels: 14 from the retaining ring 13 about a Sixth of the length of the free end of the contact fingers 11 from the end of the slope 14 is. However, this first-mentioned length could also amount to about one-eighth or even one-fifth or one-fourth or even one-third or possibly half the length of the free end of the contact fingers 11. By these length ratios can be influenced, which axial adjusting movement of the clamping insert 4 or its continuation 4a for a sufficient pivoting of the contact ends 12 of the contact fingers 11 is required.
  • the free ends of the: contact fingers 11 run in a straight line and are in the starting position parallel to the longitudinal central axis M; the cable gland 1 and ends bend-free or bend-free. This facilitates assembly, because when inserting the contact device 10 no such bends must be considered in any way.
  • the free ends and so that the contact ends 12 have the Kontäkt- finger 11 'in the position of use directed to the outside environmental bend 18, whereby the contact device 10 is also suitable for use in differently designed cable glands 1 , 4 or its: so that these bent-over portions 18 found within the cable gland 1 seat and an axial insertion of the continuation 4a desKlemmjures 4 despite these bent-over portions 18 is possible, the clamping insert has continued 4a opens at the open end and D.ruck Chemistry 15 slots 19 This simultaneously leads to the contact insert 10 being non-rotatable relative to the clamping insert 4 in the position of use, whereas in the embodiment according to FIGS is.
  • the longitudinal section of the retaining ring 13 of the contact insert 10 has the same radial thickness as the contact fingers 11 and the inside and the outside of the contact fingers 11 are flush with the inside and the outside of the retaining ring 13. Correspondingly small is the radial space requirement.
  • the sufficient stability can be effected by the axial extension or width of the retaining ring 13.
  • the cable gland 1 for a: shielded cable 2 has a threaded sleeve. 9 made of electrically conductive material or of metal and a thus connectable via a threaded counter sleeve, preferably a union nut 7 on.
  • Cable gland 1 includes a with the help of the counter sleeve or union nut 7 against the cable 2 pressed or pressable clamping insert 4, preferably with a seal 5 and held in the screw sleeve 9 contact device 10 with a ring 13 and of the ring 13 in about coaxial Direction of the cable gland 1 protruding contact fingers 11, which are acted upon by a relative axial movement of the counter-sleeve and the clamping insert 4 of this pivotable and / or bendable in their contact position.
  • the contact finger 11 holding ring 13 in the interior of the screw sleeve 9 at one of the inlet opening for the terminal insert 4 or its continuation 4a remote area arranged stop 16 is supported, so that the contact device 10 itself is immovable relative to the screw 9 and finger their contact 11 via a belonging to them, freely extending bevel 14 by the axial displacement of the clamping insert 4 or its continuation 4a to: inside the cable and its stripped area 3; be pivoted.

Landscapes

  • Installation Of Indoor Wiring (AREA)
  • Cable Accessories (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

L'invention concerne une connexion de câble vissée (1) pour un câble blindé (2), comportant une douille à vis (9) en un matériau électroconducteur ou en un métal, et une douille antagoniste pouvant lui être raccordée par un filet, de préférence un écrou-raccord (7). La connexion de câble vissée (1) comprend un insert de serrage (4) pouvant être appliqué ou pressé contre le câble (2) à l'aide de la douille antagoniste ou de l'écrou-raccord (7), de préférence avec un joint (5) et un dispositif de contact (10) maintenu dans la douille à vis (9), avec un anneau (13) et des doigts de contact (11) dépassant de l'anneau (13) à peu près dans la direction coaxiale de la connexion de câble vissée (1), qui, actionnés par l'insert de serrage (4) par un déplacement axial relatif de la douille antagoniste et de l'insert de serrage (4), peuvent être basculés et/ou fléchis dans leur position de contact. L'anneau (13) maintenant les doigts de contact (11) est étayé à l'intérieur de la douille à vis (9) sur une butée (16) disposée dans une zone opposée à l'ouverture d'entrée pour l'insert de serrage (4) ou son prolongement (4a), de telle sorte que le dispositif de contact (10) est lui-même indécalable par rapport à la douille à vis (9) et que ses doigts de contact (11) sont basculés vers l'intérieur contre le câble et sa zone dénudée (3) par le déplacement axial de l'insert de serrage (4) ou de son prolongement (4a) par l'intermédiaire d'un plan (14) incliné dégagé leur appartenant (cf. fig. 1).
EP13724737.5A 2012-06-14 2013-05-16 Connexion de câble vissée pour un câble blindé comprenant un dispositif de contact Withdrawn EP2867966A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012005796U DE202012005796U1 (de) 2012-06-14 2012-06-14 Kabelverschraubung für ein abgeschrimtes Kabel mit einer Kontakteinrichtung
PCT/EP2013/001473 WO2013185875A2 (fr) 2012-06-14 2013-05-16 Connexion de câble vissée pour un câble blindé comprenant un dispositif de contact

Publications (1)

Publication Number Publication Date
EP2867966A2 true EP2867966A2 (fr) 2015-05-06

Family

ID=46635601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13724737.5A Withdrawn EP2867966A2 (fr) 2012-06-14 2013-05-16 Connexion de câble vissée pour un câble blindé comprenant un dispositif de contact

Country Status (3)

Country Link
EP (1) EP2867966A2 (fr)
DE (1) DE202012005796U1 (fr)
WO (1) WO2013185875A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105987047A (zh) * 2016-04-12 2016-10-05 胡凡 旋转式密封夹
DE102016113655A1 (de) * 2016-07-25 2018-01-25 Pflitsch Gmbh & Co. Kg Vorrichtung zur abgedichteten Durchführung eines Langformteils
WO2018172851A1 (fr) 2017-03-20 2018-09-27 Pentair Flow Services Ag Presse-étoupe d'étanchéité et procédés de fixation d'une extrémité d'un câble à une enceinte
DE202019104919U1 (de) * 2019-09-05 2020-12-08 Wiska Hoppmann Gmbh Befestigungselement für Kontaktierung von abgeschirmten Kabeln für Kabelverschraubungen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE894870C (de) 1943-07-10 1953-10-29 Lorenz C Ag Mehrpoliger Kupplungsteil, insbesondere fuer mehradrige Verbindungs-kabel fuer Geraete der Nachrichtentechnik
DE19738517C1 (de) 1997-09-03 1998-11-19 Hummel Anton Verwaltung Kabelverschraubung für Erdungs- oder Abschirmkabel mit einem gegen das Kabel preßbaren Klemmeinsatz
CN2912056Y (zh) * 2006-06-01 2007-06-13 营口三桂管业有限公司 电线电缆保护套管接头
DE202007003957U1 (de) * 2007-03-19 2008-07-31 Anton Hummel Verwaltungs-Gmbh Kabelverschraubung mit Schraubhülse und Überwurfmutter
ATE452447T1 (de) 2007-04-17 2010-01-15 Schlemmer Gmbh Kabelverschraubung
DE102008018205B4 (de) * 2008-04-10 2015-12-24 Pflitsch Gmbh & Co. Kg Vorrichtung zur elektromagnetisch abgedichteten Anordnung eines Kabels
DE202009013522U1 (de) 2009-10-07 2009-12-24 Hummel Ag Kabelverschraubung für ein abgeschirmtes Kabel
DE202012101656U1 (de) 2012-05-04 2012-05-21 Intercontec Pfeiffer Gmbh Kabelverbindungsvorrichtung für ein Kabel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013185875A2 *

Also Published As

Publication number Publication date
WO2013185875A3 (fr) 2014-03-20
DE202012005796U1 (de) 2012-07-10
DE202012005796U8 (de) 2013-06-27
WO2013185875A2 (fr) 2013-12-19

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