EP1869743A1 - Dispositif et procede pour le passage universel de cables - Google Patents

Dispositif et procede pour le passage universel de cables

Info

Publication number
EP1869743A1
EP1869743A1 EP06724003A EP06724003A EP1869743A1 EP 1869743 A1 EP1869743 A1 EP 1869743A1 EP 06724003 A EP06724003 A EP 06724003A EP 06724003 A EP06724003 A EP 06724003A EP 1869743 A1 EP1869743 A1 EP 1869743A1
Authority
EP
European Patent Office
Prior art keywords
cable
feedthrough element
cable feedthrough
diameter
enclose
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Withdrawn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
EP06724003A
Other languages
German (de)
English (en)
Inventor
Bernd Delakowitz
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.)
TE Connectivity Germany GmbH
Original Assignee
ADC GmbH
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 ADC GmbH filed Critical ADC GmbH
Publication of EP1869743A1 publication Critical patent/EP1869743A1/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Withdrawn legal-status Critical Current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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/10—Sealing by using sealing rings or sleeves only

Definitions

  • the invention relates to a device and a method for universal cable feedthrough according to the preamble of claims 1 and 12.
  • Such a device for cable feedthrough is previously known for example from DE 19825672 Al.
  • a cable feedthrough device with a plug of resilient material comprising a through hole for receiving a cable and a groove for inserting the plug into a bore in a wall and the cable feedthrough device further comprising a strain relief unit, simultaneously an EMC-compliant cover of the strain relief unit is provided.
  • a strain relief unit designed as a truncated cone-shaped wire mesh shield surrounds a web-shaped leg of the strain relief and a conical portion of the plug.
  • the invention is therefore based on the technical problem of providing an improved device and an improved method for universal cable feedthrough.
  • the invention is based on the finding that numerous disadvantages of the known devices and methods for cable bushing can be avoided or reduced if a cable feedthrough element is used which can be used universally for various cable diameter ranges and / or for different mounting diameter ranges and wall thicknesses.
  • a device for universal cable feedthrough comprising a cable feedthrough element, which is designed to receive at least one cable of at least one elastic base material and on its inner side has at least one sealing lip which is adapted to enclose a cable to be performed and to fix, wherein the cable feedthrough element has on its inside a plurality of more than two stepwise arranged lamellae, of which at least one first and one second lamella are respectively adapted to enclose a cable to be performed and to fix, and / or the cable feedthrough element its outer side has a plurality of fir-tree-shaped fins.
  • a "stepped" arrangement of the lamellae on the inner side means that the lamellae are arranged coaxially around the center axis of the cable feedthrough element and the inner diameter of the lamellae increasingly tapers in the axial direction Cross-section and are each spaced from each other so that they form together in the axial direction of the cable feedthrough element an interrupted sawtooth, which distances between the individual profile serrations
  • a "fir-tree-shaped arrangement of the lamellae on the outside is to be understood that the lamellae are arranged coaxially about the central axis of the cable feedthrough element one behind the other and the outer diameter of the lamellae increasing in the axial direction tapered such that the outer profile of the grommet resembles the outline of a stylized fir tree.
  • the individual lamellae preferably each have a triangular cross section and together form a serrated tooth profile in the axial direction of the cable feedthrough element. Due to the different diameters of the arranged on the inside or outside of the cable bushing element slats, it is possible a single inventive cable bushing element, ensuring all functionalities of a commercially available diameter-specific
  • Cable bushing device universally to use for a wide range of different cable diameter or mounting hole diameter.
  • the fir-tree-shaped arrangement of the lamellae on the outside of the cable feedthrough element permits adaptation of the cable feedthrough element to different material thicknesses of a mounting hole within a region which can be defined via the shape of the lamellae.
  • only a universal type of device according to the invention for cable entry is sufficient to the usual application areas with respect to cable and mounting hole diameter or
  • the invention is preferably suitable for the universal implementation of cables, but it is equally conceivable that such a device according to the invention can also be used for the universal implementation of pipes or other construction or functional elements with elongated expansion.
  • the cable feedthrough element is formed in one piece. On the one hand, this facilitates handling during assembly, and on the other hand, it increases the stability of the cable feedthrough.
  • the cable feedthrough element is at least partially rotationally symmetrical. This increases the stability of the grommet, favors the elastic deformation properties and facilitates the manufacture and installation of the device for cable entry.
  • the cable feedthrough element is formed at least partially conical or frusto-conical.
  • the cable feedthrough element is suitable for receiving different cable diameters and for adapting to different mounting diameters, for example in the bore of a housing wall.
  • both the cavity on the inside and the outer contour of the cable feedthrough element is at least partially conical or frustoconical, so that the cable feedthrough then at least in these conical or frusto-conical shaped areas a nearly constant basic strength of its wall (ie without consideration of on the wall inside and outside arranged slats).
  • the cable feedthrough element is very easily elastically deformable and adaptable to the mounting conditions in an advantageous manner.
  • the cable feedthrough element has at least one membrane closed in the initial state. This can then be pierced, for example, only during the installation of a cable to be performed by means of a screwdriver or even by means of the cable to be performed itself.
  • the membrane serves to prevent the ingress of moisture or dirt into the grommet, as long as no cable is performed. In this way, a "blinded" cable bushing can be created with the initially closed by the membrane cable entry element, although not yet with a cable to be performed is occupied, but offers the possibilities for easy installation of such.
  • the length and the inner diameter range of the cable feedthrough element can be adapted to the diameter of a cable to be carried out by separating non-required partial areas.
  • the cable feedthrough element is preferably made of a material that is easy to cut, for example rubber or an elastic plastic.
  • a knife to the extent that are separated, that just at least one of the inside of the cable bushing element arranged stepwise lamellae with an inner cable corresponding to the inner diameter is present, which then tightly enclose the cable for fixing and sealing on its outer shell due to their elastic properties can.
  • the area of the cable feed-through element to be cut off is the longer and larger, the thicker the cable to be carried out or the greater its diameter.
  • the separated sections can be easily reused for other cable diameter or mounting hole diameter, which reduces costs and other waste and less polluting the environment.
  • the length and the outer diameter range of the cable feedthrough element can be adapted by separating unneeded partial regions to the diameter of a bore into which the cable feedthrough element can be introduced for assembly.
  • the cable feedthrough element is preferably made from a material that is easy to cut, for example rubber or an elastic plastic.
  • a part of the cable feedthrough element which has a larger outer diameter than the mounting hole for the cable feedthrough, for example in a housing, with the aid of a tool, such as a knife, so far separated that just barely at least one of the outside of the Cable bushing element Tannenbaumförmig arranged slats with a diameter corresponding to the mounting hole Outside diameter is present, which may then be to form a groove-shaped contour with the edge of the mounting hole for fixing the cable feedthrough element in a final assembly position and for sealing the cable gland in engagement.
  • the separated sections can be easily used for other Montagebohr ⁇ ngs trimmesser diameter or cable diameter, which reduces costs and waste and less polluting the environment.
  • the cable feedthrough element has electrically conductive properties.
  • electrically conductive is meant in this context that the material in question has a volume resistivity of at most 1 ⁇ / cm, but preferably only 0.5 ⁇ / cm and more preferably only 0.05 ⁇ / cm and most preferably 0.005 ⁇ / cm.
  • At least one electrically conductive additional material is introduced into the elastic base material, whereby the cable feedthrough element has electrically conductive properties.
  • the elastic base material is preferably doped with particles of an electrically conductive filler material as filler.
  • a homogeneous material can be generated from the base material of the elastic base material and the electrically conductive additional material, which then itself has both elastic and electrically conductive properties.
  • the elastic base material is preferably silicone or fluorosilicone or silicone rubber or a thermoplastic elastomer, furthermore preferably the silicone rubber type VMQ or an ethylene-propylene elastomer, for example EPDM-X-PP.
  • the electrically conductive additional material is preferably silver-coated aluminum and / or silver-coated nickel and / or silver-coated copper and / or silver-coated glass and / or nickel graphite.
  • silver-coated aluminum a particularly low volume resistance and thus a correspondingly high electrical shielding effectiveness
  • nickel graphite has a comparatively high volume resistance and thus a lower electrical shielding effectiveness.
  • At least one of a plurality of lamellae arranged on the inside of the cable feed-through element is suitable for contacting a shield of the cable to be carried out.
  • This can be achieved, for example, by removing the insulation of the cable at the contact point of the cable to be carried out with the lamella and then exposing the contact point to the cable shield, so that the lamella tightly embraces the exposed contact point due to its elastic properties and with the cable shielding in contact.
  • an electrical connection of the shielding of the cable to a housing in which the cable feedthrough is mounted can be established, whereby the shielding of the cable is earthed.
  • the cable feedthrough element may be connected to a grounded contact surface, for example a control cabinet housing, in which the cable feedthrough is attached, electrically and mechanically by means of the fins arranged on the outside of the cable feedthrough element.
  • a grounded contact surface for example a control cabinet housing, in which the cable feedthrough is attached, electrically and mechanically by means of the fins arranged on the outside of the cable feedthrough element.
  • the contact surface may preferably be the edge of a bore in the wall of a housing, wherein the edge of the bore is then preferably formed metallic.
  • the shielding of the cable itself is already grounded in another way and thus the apparatus for cable feedthrough can also be grounded by the production of the contact between the cable feedthrough element and the shielding.
  • the cable feedthrough element has on its inside at least one first and one second step-shaped lamella, which are each suitable for enclosing and fixing a cable to be carried out, wherein the first lamella is also suitable for shielding the one to be carried out , Contact cable.
  • the "first lamella" preferably encompasses, due to its elastic properties, an exposed contact point of the one to be performed Cable, where the insulation of the cable is removed and then exposed to the cable shield, and is in contact with the cable shield.
  • the second lamella which is arranged stepwise to the first lamella and preferably has a slightly larger inner diameter than the first lamella, then preferably contacts the outer sheath of the cable and, due to its elastic properties, closely surrounds the cable for its fixation and for sealing its outer shell.
  • at least the second, but preferably both the first and the second lamella serves to prevent moisture and / or dirt from reaching the outer shell of the cable to be carried from one to the other side of the first and / or the second lamella.
  • FIG. 1 shows a schematically illustrated cross-sectional view of a preferred embodiment of the invention, both in the unassembled and in the fully assembled state
  • FIG. 2a and 2b each show a schematically illustrated cross-sectional view of a preferred embodiment of the invention in the assembled state at different thicknesses of the mounting hole
  • 3a and 3b each show a schematically illustrated cross-sectional view of a preferred embodiment of the invention in the assembled state both with and without cable to be performed,
  • FIG. 4a and 4b each show a schematically illustrated cross-sectional view of another preferred embodiment of the invention as an EMC-tight shield in the assembled state both with and without cable to be performed,
  • 5a, 5b and 5c each show a schematically illustrated cross-sectional view of a preferred embodiment of the invention in the assembled state with cable to be performed at different cable diameters
  • 6a, 6b and 6c each show a schematically illustrated cross-sectional view of various sizes of a preferred embodiment of the Invention in unmounted state and
  • Fig. 7 shows a possible variant of the handling of the invention for
  • Fig. 1 shows schematically a cross-sectional view of a preferred embodiment of a device according to the invention for universal cable feedthrough, once in the unmounted and next in the fully assembled state.
  • the illustrated basic form of the device according to the invention comprises a cable feedthrough element 1, which is universally applicable for various cable diameter ranges and for different diameter ranges of a bore 24 and material thicknesses of a wall 25, in which the cable feedthrough element 1 can be inserted for mounting.
  • the cable feed-through element 1 is designed to receive a cable 30 (see Fig. 3b) made of an elastic base material. It has on its inner side 4 a plurality of step-shaped fins 11, which partially act as a sealing lip and are adapted to enclose a cable 30 to be performed and to fix.
  • the stepwise arranged fins 11 on the inside 4 are arranged coaxially about the central axis 7 of the cable feedthrough element 1 one behind the other and the inner diameter of the stepwise arranged fins 11 increasingly tapers in the axial direction.
  • the individual fins 11 each have a triangular cross-section and are each spaced from each other, so that they together form an interrupted sawtooth in the axial direction of the cable feedthrough element 1, which has distances between the individual profile serrations, which are each wider than each individual tine itself.
  • the grommet 1 on "its outer side 3, a plurality of fir tree-shaped arrangement of laminations 19.
  • the fir tree-shaped arrangement of laminations 19 at the outer side 3 are also arranged coaxially around the central axis 7 of the cable guide member 1 in a row and the outer diameter of the fins 19 tapers increasingly in the axial direction, so that the outer profile of the cable feedthrough element 1 resembles the outline of a stylized fir tree
  • the individual fins 19 each have a triangular cross-section and together form a sawtooth-shaped serrated profile in the axial direction of the cable feedthrough element 1.
  • the cable feedthrough element 1 is formed in one piece and rotationally symmetrical and partially frusto-conical. It is composed of a frustoconical part 5 and an annular part 6 together.
  • Both the cavity 2 on the inside 4 and the outer contour of the cable feedthrough element 1 are partially frusto-conical, so that the cable bushing element 1 then in these frusto-conical shaped areas a nearly constant basic strength of its wall 8 (ie without taking into account the on the wall 8 inside and externally arranged lamellae 11, 19).
  • the annular part 6 is partially formed in the form of a flange which projects beyond the wall 8 in the frustoconical part 5 of the cable feedthrough element 1 in the radial direction.
  • the outer diameter of the frusto-conical part 5 tapers with increasing distance from the annular part 6 of the cable feedthrough element 1.
  • the cable feedthrough element 1 Due to the partially frusto-conical shape and the constant basic strength of its wall 8 in its frustoconical part 5, the cable feedthrough element 1 is very easily elastically deformable and thus to accommodate different cable diameters suitable.
  • the cable feedthrough element 1 also has a membrane 10 closed in the initial state. This can then be pierced, for example, during the assembly 'of a cable 30 to be carried out (see Fig. 3b) by means of a screwdriver or by means of the cable 30 to be carried out itself.
  • the membrane 10 serves to prevent. of Penetration of moisture or dirt into the grommet, as long as no cable 30 is performed.
  • FIG. 2a and 2b each schematically show a cross-sectional view of the same preferred embodiment of a device according to the invention for universal cable feedthrough in the assembled state as in Fig. 1, but with different thicknesses of the wall 25a and 25b of the bore 24 (see Fig. 1), in which the cable feedthrough element 1 is introduced in each case for assembly.
  • FIG. 2a shows the device according to the invention mounted in a wall 25a with a thinner material
  • FIG. 2b shows the same device mounted in a wall 25b with thicker material.
  • FIG. 3a and 3b each schematically show a cross-sectional view of the same preferred embodiment of a device according to the invention for universal cable feed-through in the assembled state as in Fig. 1 and Fig. 2, both without and with fully assembled cable to be performed 30.
  • the cable feedthrough element 1 has on its inner side 4 the stepwise arranged lamellae 11, of which a first 12 and a second lamella 14 each enclose the cable 30 to be carried out and fix.
  • the length and the inner diameter range of the cable feedthrough element 1 were adapted to the diameter of the cable 30 to be carried out by separating unneeded portions.
  • FIG. 3a shows the part of the cable feedthrough element 1 to be cut off for this purpose above the stylized cut line 17.
  • the cable feedthrough element 1 electrically conductive properties, whereby the cable feedthrough element 1 is then in addition to its elastic properties for receiving and fixing the cable 1 to be performed so even without additional shielding elements to serve as EMC-tight shielding is capable of.
  • the elastic base material from which the cable feedthrough element 1 is made for example the silicone rubber type VMQ, is preferably doped with particles of an electrically conductive filler material, for example nickel graphite, as filler. It can be seen in Fig.
  • the second blade 14 which is arranged in steps to the first blade 12 and has a slightly larger inner diameter than the first blade 12, is in contact with the outer sheath of the cable 30 and encloses the cable 30 due to their elastic properties closely to its fixation as well as Sealing on its outer shell. It serves both the first 12 and the. second sipe 14 to prevent moisture and / or dirt on the outer shell of the cable 30 to be carried from one to the other side of the first 12 and / or the second blade 14 passes.
  • a electrical connection of the shield 35 of the cable 30, for example, with a housing to which the wall 25 belongs, in which the cable gland is mounted, are manufactured, whereby the shield 35 of the cable 30 can be grounded.
  • the cable feedthrough element 1 is connected to a grounded contact surface 22, which is for example part of a control cabinet housing (not shown), in which the cable gland is attached, electrically and mechanically connected by means of the on the outside 3 of the cable feedthrough element 1 fir-tree-arranged fins 19.
  • the contact surface 22 is the edge of the bore 24 (see Fig. 1) in the wall 25 of the housing, wherein the edge of the bore 24 is formed metallic.
  • the smaller inner diameter has as the outer diameter of the cable 30 to be carried out, as far as was separated, that just three of the inner side 4 of the cable feedthrough element 1 step-shaped fins 11 are provided with a corresponding cable 30 to be performed inner diameter, which then , the cable 30 for fixing and the Seal tightly on its outer shell and for contacting the partially exposed cable shield 35 due to the elastic properties of the slats 11.
  • FIGS. 5a, 5b and 5c each schematically show a cross-sectional view of a preferred embodiment of the device according to the invention for the universal cable feedthrough in the assembled state with different cables 30a, 30b, 30c to be carried out, each having a different cable diameter.
  • the length and the inner diameter range of the cable feedthrough element 1 are adjusted by separating the respectively not required partial region from the diameter of the respective cable 30a, 30b, 30c to be carried out.
  • the severed area of the cable feedthrough element 1 is the longer and larger, the thicker the respective cable 30a, 30b, 30c to be carried out or the greater its diameter. That is, the remaining for mounting the respective cable 30a, 30b, 30c in the wall 25 part of the cable feedthrough element 1 is then the shorter and smaller, the larger the diameter of the respective cable 30a, 30b, 30c to be performed is.
  • FIG. 6a, 6b and 6c each schematically show a cross-sectional view of different sizes of a preferred embodiment of the device according to the invention for universal cable feedthrough in the unassembled state.
  • a universal type of a cable feedthrough element 1 according to the invention is sufficient to cover the usual fields of application with regard to cable and mounting bore diameter or wall thickness.
  • a plurality of different sized universal cable feedthrough elements Ia, Ib, Ic available all have the same structural design and the same geometry, but serve different diameter spectra.
  • the cable feedthrough element 1 for example, for adaptation to different cable or mounting hole diameter along cutting lines 17a, 17b in three sections 15a , 15b, 15c parts. It can be seen in particular that the length and the outer diameter range of the cable feedthrough element 1 can also be adapted to the diameter of a respective bore 24a, 24b, 24c into which the cable feedthrough element 1 is to be installed for assembly by separating unneeded portions.
  • two sections 15a, 15b, each having a larger Outer diameter than the bore 24c for the cable bushing in the wall 25 have, as far as separated, that just at least one of the outside of the portion 15c of the cable feedthrough element 1 fir-tree arranged fins 19 is provided with a diameter of the bore 24c corresponding outer diameter, which then forming a groove-shaped contour with the edge of the bore 24c for fixing the portion 15c of the cable feedthrough element 1 in a final assembly position and for sealing the cable feedthrough is engaged.
  • the severed portions 15b, 15c can then be easily used for further different cable diameters or diameters of bores 24a, 24b, in which the sections 15a, 15b of the cable feedthrough element 1 are to be placed for assembly, whereby costs, waste and environmental pollution are reduced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)

Abstract

L'invention concerne un dispositif pour le passage universel de câbles. Le dispositif selon l'invention comprend un élément passe-câble (1, 1a, 1b, 1c) qui est réalisé dans au moins un matériau de base élastique pour la réception d'au moins un câble (30, 30a, 30b, 30c) et qui présente, sur sa face intérieure (4), au moins une lèvre d'étanchéité servant à entourer et fixer un câble à faire passer (30, 30a, 30b, 30c). L'élément passe-câble (1, 1a, 1b, 1c) présente, sur sa face intérieure (4), une pluralité de plus de deux lamelles échelonnées (11) dont au moins une première (12) et une deuxième lamelle (14) servent respectivement à entourer et à fixer un câble à faire passer (30, 30a, 30b, 30c) et/ou l'élément passe-câble (1, 1a, 1b, 1c) présente, sur sa face extérieure (3), une pluralité de lamelles (19) placées de manière à former un sapin.
EP06724003A 2005-04-09 2006-04-04 Dispositif et procede pour le passage universel de cables Withdrawn EP1869743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005016340A DE102005016340B3 (de) 2005-04-09 2005-04-09 Vorrichtung und Verfahren zur universellen Kabeldurchführung
PCT/EP2006/003046 WO2006108534A1 (fr) 2005-04-09 2006-04-04 Dispositif et procede pour le passage universel de cables

Publications (1)

Publication Number Publication Date
EP1869743A1 true EP1869743A1 (fr) 2007-12-26

Family

ID=36601154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06724003A Withdrawn EP1869743A1 (fr) 2005-04-09 2006-04-04 Dispositif et procede pour le passage universel de cables

Country Status (4)

Country Link
US (1) US7790989B2 (fr)
EP (1) EP1869743A1 (fr)
DE (1) DE102005016340B3 (fr)
WO (1) WO2006108534A1 (fr)

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US7790989B2 (en) 2010-09-07
WO2006108534A1 (fr) 2006-10-19
US20090218132A1 (en) 2009-09-03
DE102005016340B3 (de) 2006-08-10

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