FR2995463A1 - Electrified beam for use in electrification system, has section formed with composite material, and electric drivers integrated within material of section in form of multiple conducting inserts - Google Patents

Abstract

The beam (1) has a section (10) formed with a composite material. Electric drivers are integrated within the material in form of multiple conducting inserts (20). The section comprises a pre-profiled part formed by pultrusion for placing housings for the inserts. The pre-profiled part is covered with plastic or composite insulation to ensure fire protection. The inserts are placed in a symmetrical way in the section. The composite material is carried out by mixture of inorganic fibers of reinforcements, and a thermoplastic matrix is obtained by reactive way. An independent claim is also included for a method for manufacturing an electrified beam.

Description

Electrified beam. The present invention relates to a new use of composite profiles made by pultrusion to manufacture electrified beams.

The idea is to take advantage of the insulating and structural properties of composite profiles made by pultrusion to make non-corrosive structural purpose beams that can be intrinsically electrified.

The applications all cover systems that must provide both a mechanical function and an electrification function, mainly outdoors where there is also a need for corrosion resistance. The integration of the electrical conductors within the composite profile also solves a sealing problem encountered in electrical systems installed outdoors or in a potentially humid environment. The invention can be seen as a beam (element for carrying loads) electrified, or also as a rigid and self-supporting electric cable. Existing systems are a combination of a material that provides mechanical but electrically conductive (steel or aluminum) and plastic insulation. These systems are very difficult to use outdoors or wet environments because the sealing of such systems is very delicate and expensive insofar as these systems necessarily have open areas 30 to access the conductive elements without drilling the conductive carrier material.

The invention is described in connection with the accompanying drawings, mainly through 3 examples that are: - luminaire supports for road tunnels - self-supporting cables in wall fixing - building facade profiles and in particular facades intended to ensure a retrofit of old buildings to reduce energy consumption. The invention covers the beam itself but also principles of connections through some examples illustrated in the drawings. The variations of the invention are listed below: 1. Inserts embedded in the material not accessible 2. Inserts partially embedded (flush) with undercuts (conical) 3. Symmetrical arrangement of the conductive inserts to eliminate the possible problems of expansion 4. Inserts can contribute according to their position to the mechanical rigidity of the profile (eg in the corners) 5. Inserts of flat, round, square type, _ 25 6. End-to-end joining of the profiles with automatic electrical continuity 7. End-to-end joining of the profiles with electrical continuity achieved by connected connections 8. Connections of electrical devices obtained by screwing through the profile and conductive inserts 9. Connections of electrical devices obtained by magnetic field (no physical intrusion in the profile) The composite does not disturb the magnetic fields. 10. Connections of electrical appliances obtained by contact on the inserts with maintained pressure 11. Connections of electrical appliances that can be located at any point along the profiles. 40 12. Sealed joint between profile 13. Profiles may be solid or hollow 14. Profiles may have cavities for carrying other fluids (water, air, etc.) 15. Intrinsically flame retardant profiles 16. Intrinsically incombustible shapes inorganic matrix composite material 17. Profiles having an external fire protection layer 18. Fire protection layer obtained by coextrusion of polymers having the desired fire properties 19. Fire protection layer obtained by a layer of intumescent paint presenting the desired desired fire properties 20. Profiles have markers for locating either the conductive inserts or the permitted fastening areas 21. Conductive inserts of small thickness, rollable on a reel 22. Section of inserts allowing drilling for the insertion of a pin of connection (butt joint) 23. Pin or compressed system exerting in a close position Permanent contact with conductive inserts 24. Conductive inserts material = aluminum, copper, steel, _ 25. Profile material = mixture of reinforcing fibers and organic or inorganic resin 26. Profile material = insulating material (plastic or wood) 27 Method of manufacturing by pultrusion or extrusion with introduction in situ of the conductive inserts in the material 28. Manufacturing process with addition of the inserts (in line) after the pultrusion step and coextrusion recovery (advantage = positioning accuracy of the inserts because structures already formed) 29. Application of lighting support for road tunnel 30. Application of fire-resistant self-supporting cable for risk area (elevator, corridor receiving public, _) 31. Application of bus shelters 32. Application of building facade

Claims (1)

REVENDICATIONS1. Use of composite profiles produced by pultrusion to manufacture electrified beams for structural purposes, ensuring both a mechanical function and an electrification function by integrating the electrical conductors in the composite profile, in the form of embedded inserts in the material, not accessible, or partially embedded inserts.