EP2710696A1 - Gaine de câble ultralégère pour effectuer un blindage vis-à-vis de champs électriques et magnétiques - Google Patents

Gaine de câble ultralégère pour effectuer un blindage vis-à-vis de champs électriques et magnétiques

Info

Publication number
EP2710696A1
EP2710696A1 EP11732513.4A EP11732513A EP2710696A1 EP 2710696 A1 EP2710696 A1 EP 2710696A1 EP 11732513 A EP11732513 A EP 11732513A EP 2710696 A1 EP2710696 A1 EP 2710696A1
Authority
EP
European Patent Office
Prior art keywords
tubular element
ribbon
conduit according
conduit
constituted
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Withdrawn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
EP11732513.4A
Other languages
German (de)
English (en)
Inventor
Mauro Maggioni
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.)
Lamiflex SpA
Original Assignee
Lamiflex SpA
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 Lamiflex SpA filed Critical Lamiflex SpA
Publication of EP2710696A1 publication Critical patent/EP2710696A1/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Withdrawn legal-status Critical Current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
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
    • 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

Definitions

  • the present invention relates to an ultralight cable conduit for shielding electrical and magnetic fields.
  • US 563045 devised an improvement to the field, by introducing a screening conduit especially made for aircrafts which is flexible and low weight and made with a tubular core that is deformable and flexible and which has helical corrugations on the outer surface upon which a conventional metalized fabric is applied, which is helically wrapped around the corrugations and is fixed by means of wires or strips wrapped around the fabric which, in practice, is made with a coiled ribbon.
  • This embodiment is structurally complex and suffers the typical drawbacks that derive from the use of ribbon, owing to the number of points of contact between the several coils of the ribbon.
  • the aim of the present invention is to solve the above mentioned drawbacks, by providing an ultralight cable conduit for shielding electrical and magnetic fields which is obtained only with two component elements that can have any shape in section in order to adapt to different applications.
  • an object of the invention is to provide a conduit that, in addition to being flexible, can be obtained with any cross-section, thus improving the surface conductibility of the screening element placed on the outer surface.
  • Another object of the present invention is to provide a cable conduit that, thanks to its distinctive implementation features, is capable of offering the widest guarantees of reliability and safety in use.
  • a further object of the present invention is to provide a cable conduit that can be easily implemented using elements and materials that are readily available on the market, and which, moreover, is competitive from a merely economical viewpoint.
  • an ultralight cable conduit for shielding electrical and magnetic fields characterized in that it comprises an inner tubular element made of composite material which supports an outer sheet-like layer which provides an outer tubular element made of electrically conducting material, said outer tubular element being jointly connected to said inner tubular element during the polymerization of said composite material.
  • Figure 1 is an exploded perspective view of the conduit, according to the invention.
  • Figure 2 is a perspective view of two segments of conduit which can be mutually coupled with a spigot joint
  • Figure 3 is a sectional view of two segments of conduit with spigot joint, separated one another;
  • Figure 4 is a sectional view of a conduit with spigot joint with the elements mutually coupled
  • Figure 5 is a perspective view of two segments of conduit with a flange joint
  • Figure 6 is a view of two segments of conduit with flange joint, separated one another;
  • Figure 7 is a sectional view of two segments of conduit with flange joint, mutually coupled.
  • the ultralight cable conduit for shielding electrical and magnetic fields comprises an inner tubular element, generally designated with the reference numeral 1, which, according to a preferred but not binding embodiment, is constituted by a composite material that is obtained by means of a coiled continuous ribbon of a glass fabric impregnated with epoxy resin.
  • an outer tubular element 10 is applied that is constituted by a sheet-like layer made of electrically conducting material, advantageously made of a fabric made of polyester treated with nickel.
  • a spigot joint is provided which is constituted by a male portion 5 and by a female portion 6 which are made of polyester like the composite material, so as to provide the classic spigot coupling.
  • the outer tubular element is positioned outside the male part of the joint, while it is positioned inside the female part of the j oint.
  • the widening of the cross-section of the female part of the joint is less than the nominal thickness of the male part affected by the ribbon with annular filaments 7, since in the coupling the portion with the annular filaments undergoes a compression with mechanical interference and without deformation of the cross-section of the conduit of the joint.
  • Such interference enables the joint to remain in position even if subjected to the operating vibrations of the apparatus on which it is installed, and moreover it enables a friction of the joint proper that does not involve excessive shearing stresses which could damage the metallic covering of the conductive fabric and of the ribbon with annular filaments, thus ensuring better stability of the metalization over time.
  • a flange joint is provided with a flanged end portion 11 for each segment, on the contact face thereof a layer of conductive felt 12 being applied which enables the joint to create the deformations that make it possible for the joint to have a contact over all the surface of the flange thus ensuring a high electromagnetic seal.
  • This embodiment is particularly adapted when it is necessary to cross a bulkhead or earth the conduit on the structure of the machine on which it is installed.
  • felt 12 with nickel metalization makes it possible to have an optimal chemical compatibility between the metalized elements and chemical compatibility between the elements that constitute a structure of the conduit proper, and with great ease of outcome during the polymerization cycle in an autoclave in order to obtain the connection of the flange to the inner tubular element.
  • the invention achieves the intended aim and objects and in particular attention is drawn to the fact that an ultralight cable conduit for screening electrical and magnetic fields is provided, in which, by exploiting the coupling of two materials and specifically of a stratified composite material in order to provide the inner tubular element and of a metalized layer for the outer tubular element, it is possible to obtain conduits with high shielding, with very low weight and with the advantage of considerable modularity of the assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Insulated Conductors (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

L'invention porte sur un conduit de câble ultraléger pour effectuer un blindage vis-à-vis de champs électriques et magnétiques, lequel conduit comprend un élément tubulaire interne (1) réalisé en un matériau composite, qui supporte une couche en forme de feuille externe (10) qui constitue un élément tubulaire externe réalisé en un matériau électriquement conducteur, l'élément tubulaire externe (10) étant relié conjointement à l'élément tubulaire interne (1) pendant la polymérisation du matériau composite.
EP11732513.4A 2011-05-20 2011-05-20 Gaine de câble ultralégère pour effectuer un blindage vis-à-vis de champs électriques et magnétiques Withdrawn EP2710696A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2011/052220 WO2012160411A1 (fr) 2011-05-20 2011-05-20 Gaine de câble ultralégère pour effectuer un blindage vis-à-vis de champs électriques et magnétiques

Publications (1)

Publication Number Publication Date
EP2710696A1 true EP2710696A1 (fr) 2014-03-26

Family

ID=44628469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11732513.4A Withdrawn EP2710696A1 (fr) 2011-05-20 2011-05-20 Gaine de câble ultralégère pour effectuer un blindage vis-à-vis de champs électriques et magnétiques

Country Status (2)

Country Link
EP (1) EP2710696A1 (fr)
WO (1) WO2012160411A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD868611S1 (en) 2018-07-17 2019-12-03 Walkabout Developments LLC Hydraulic hose identification device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US563045A (en) 1896-06-30 Svante e
US4376229A (en) * 1980-09-16 1983-03-08 Raychem Corporation Shielded conduit
JP3729571B2 (ja) * 1996-08-26 2005-12-21 Ｎｅｃトーキン株式会社 デジタル電子機器用チューブ付ケーブル
US6854990B2 (en) * 2002-11-27 2005-02-15 W. Randy Harrell Modular electrical cord shield system
FR2853148B1 (fr) * 2003-03-24 2008-11-14 Fed Mogul Systems Prot Group Gaine de blindage electro-magnetique notamment pour proteger des faisceaux de cables dans l'aeronautique.
US8283563B2 (en) * 2006-03-29 2012-10-09 Federal-Mogul Powertrain, Inc. Protective sleeve fabricated with hybrid yard, hybrid yarn, and methods of construction thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012160411A1 *

Also Published As

Publication number Publication date
WO2012160411A1 (fr) 2012-11-29

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