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Assembly of twisted insulated electric wires

A twisting and assembly technology, applied in the direction of insulated cables, electrical components, insulated conductors, etc., can solve the problems of difficulty and the difficulty of separating insulated electrical conductors.

Inactive Publication Date: 2013-12-25
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this type of assembly has a number of disadvantages
Specifically, on the one hand, it is very difficult to insert the tape-like structure onto the sheath because it is mainly flexible only in a single direction, and on the other hand, because the hot-melt adhesive is very elastic (in elongation at break of at least 140%), so it is not easy to separate an insulated electrical conductor in the presence of said adhesive

Method used

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  • Assembly of twisted insulated electric wires
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Embodiment Construction

[0036] For the sake of brevity, identical elements have been denoted by identical reference numerals. Likewise, essential elements for understanding the invention have been shown schematically and not drawn to scale.

[0037] figure 1 An assembly 10 of two insulated wires 1 is shown, each comprising a central conductive core 2 surrounded by insulating material 3 . The two insulated wires touch each other and are twisted together. A thermoplastic holding material 4 is continuously extruded and deposited in the outer groove 5 formed between the two insulated wires in order to bond them together. The thermoplastic retention material fills the outer groove 5 such that the outer diameter of the circular cross-section inscribing the thermoplastic retention material is smaller than the outer diameter of the circular cross-section inscribing the twisted bundles. In this way, the thermoplastic retaining material does not completely cover the twisted bundles, but rather it retains a...

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Abstract

The invention relates to an assembly comprising insulated electric wires arranged in parallel to each other, each electric wire being surrounded by an insulating material and a thermoplastic supporting material, characterised in that the insulated electric wires are twisted together and define a bunch, and in that the thermoplastic supporting material is provided so as to connect all the insulated electric wires of the bunch together so that each insulated electric wire is connected to at least one insulated electric wire adjacent thereto, and so that a portion of the insulation material of at least one insulated electric wire of the bunch remains visually identifiable from outside the assembly.

Description

technical field [0001] This invention relates to assemblies of twisted insulated electrical conductors. [0002] Its typical, non-exclusive application to the field of energy cables and / or communication cables, and more particularly to low-voltage cables used in buildings, which have a maximum Voltage. Background technique [0003] An assembly of insulated electrical conductors suitable for this purpose which can be easily separated without special tools is known from document FR 2 122 323 . [0004] The insulated electrical conductors of the assembly are placed side by side so as to form a strip of insulated electrical conductors. Beads of hot melt adhesive are placed in the grooves formed between each pair of insulated electrical conductors to bond the insulated electrical conductors together. These beads of hot melt adhesive are interrupted in places to allow the insulated conductors to be separated and joined. [0005] However, this type of assembly has a number of d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/02H01B13/14
CPCH01B13/146H01B7/361H01B7/0275
Inventor P.奥多特
Owner NEXANS