Electromagnetic protection sheath made of textile

Abstract

An electromagnetic protection sheath made of textile ( 10 ) is formed by conductive filaments extending in a first direction (X) and non-conductive filaments interlaced with the conductive filaments. Use in particular for shielding cables in aeronautical applications.

1 . A textile electromagnetic protection sheath, comprising:
 conductive filaments extending in a first direction corresponding to a longitudinal direction of the sheath between opposite ends of the sheath, the conductive filaments being formed from wires such that the conductive filaments protect against external electromagnetic signals; and   non-conductive filaments interlaced with the conductive filaments,   wherein the sheath is a thermoformed, self-closing longitudinally slit sheath having opposite overlapping longitudinal edges overlapping one another at an overlapped region,   wherein the non-conductive filaments extend substantially transversely to the conductive filaments between the opposite longitudinal edges and include at least one previously heat-treated and thermoformed thread such that the sheath is a self-closing longitudinally slit, deformed sheath having the overlapping longitudinal edges, the at least one thermoformed thread having a diameter greater than a diameter of the conductive filaments, and   wherein the longitudinal edges are configured to be separated at a region at which the opposite longitudinal edges overlap one another.   
     
     
         2 . The electromagnetic protection sheath according to  claim 1 , wherein the sheath is a longitudinally slit sheath having a shape memory. 
     
     
         3 . The electromagnetic protection sheath according to  claim 1 , wherein the sheath is a tubular sheath. 
     
     
         4 . The electromagnetic protection sheath according to  claim 1 , wherein the sheath is woven, the conductive filaments constituting warp threads and the non-conductive filaments constituting weft threads. 
     
     
         5 . The electromagnetic protection sheath according to  claim 1 , wherein the non-conductive filaments are a polyphenylenesulfide thread. 
     
     
         6 . The electromagnetic protection sheath according to  claim 1 , wherein the non-conductive filaments are mineral fibers, glass fibers or synthetic fibers selected from the group consisting of polyester, polyphenylenesulfide, polyetheretherketone, polyamide, polyethylene, polypropylene, polyethyleneimine, polyetherketone, polyetherketoneketone, meta-aramide and polytetrafluoroethylene. 
     
     
         7 . The electromagnetic protection sheath according to  claim 1 , wherein the conductive filaments are not electrically connected together by interlaced filaments. 
     
     
         8 . The electromagnetic protection sheath according to  claim 1 , wherein the thermoformed thread is formed from at least one selected from the group consisting of polyester, polyphenylenesulfide, polyetheretherketone, polyamide, polyethylene, polypropylene, polyethyleneimine, polyetherketone, polyetherketoneketone, and polytetrafluoroethylene. 
     
     
         9 . The textile electromagnetic protection sheath according to  claim 1 , wherein the sheath is configured with a longitudinal opening defined therethrough in a state in which the sheath is closed, the sheath being configured to receive a cable within the longitudinal opening, and
 the sheath is configured to electromagnetically protect the cable when the cable is disposed within the longitudinal opening.   
     
     
         10 . The textile electromagnetic protection sheath according to  claim 1 , wherein at least some of the conductive filaments are discrete bundles of braided wires. 
     
     
         11 . The textile electromagnetic protection sheath according to  claim 1 , wherein the conductive filaments are copper. 
     
     
         12 . A textile electromagnetic protection sheath, consisting essentially of:
 conductive filaments extending in a first direction corresponding to a longitudinal direction of the sheath between opposite ends of the sheath, the conductive filaments being formed from wires such that the conductive filaments protect against external electromagnetic signals; and   previously heat-treated and thermoformed non-conductive filaments interlaced with the conductive filaments, the thermoformed non-conductive filaments extending between opposite longitudinal edges of the sheath such that the conductive filaments are thereby mutually insulated from each other,   wherein the non-conductive filaments have a diameter greater than a diameter of the conductive filaments so that wear of the sheath by rubbing or abrasion is limited to the non-conductive filaments,   wherein the sheath is a thermoformed, self-closing longitudinally slit sheath having opposite overlapping longitudinal edges overlapping one another at an overlapped region, and   wherein the longitudinal edges are configured to be separated at a region at which the opposite longitudinal edges overlap one another.   
     
     
         13 . The textile electromagnetic protection sheath according to  claim 12 , wherein the sheath is woven, the conductive filaments constituting warp threads extending along the longitudinal direction and the non-conductive filaments constituting weft threads extending transversely to the longitudinal direction. 
     
     
         14 . The textile electromagnetic protection sheath according to  claim 12 , wherein at least some of the conductive filaments are discrete bundles of braided wires. 
     
     
         15 . The textile electromagnetic protection sheath according to  claim 14 , wherein the conductive filaments are copper. 
     
     
         16 . A textile electromagnetic protection sheath, comprising:
 conductive wire filaments extending along a longitudinal direction of the sheath between opposite ends of the sheath; and   at least one non-conductive filament extending between opposite longitudinal edges of the sheath in substantially transverse relation to the conductive wire filaments in interlaced relation with the conductive wire filaments, the at least one non-conductive filament including at least one thermoformed filament that automatically biases the opposite longitudinal edges into overlapping relation with one another such that the sheath is tubular and self-closing, wherein the longitudinal edges are separable from one another for adding and viewing a cable to be shielded, with the at least one thermoformed filament having a diameter greater than a diameter of the conductive wire filaments.   
     
     
         17 . The textile electromagnetic protection sheath according to  claim 16 , wherein at least some of the conductive wire filaments are discrete bundles of conductive wire filaments. 
     
     
         18 . The textile electromagnetic protection sheath according to  claim 17 , wherein the conductive wire filaments within the discrete bundles are braided. 
     
     
         19 . The textile electromagnetic protection sheath according to  claim 17 , wherein the discrete bundles of conductive wire filaments and the at least one non-conductive filament are woven together. 
     
     
         20 . The textile electromagnetic protection sheath according to  claim 17 , wherein the discrete bundles of conductive wire filaments are not electrically connected together.