Expandable electric cord and production method thereof

H - Electricity – 01 – B

Patent

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Details

H01B 7/06 (2006.01) H01B 13/00 (2006.01)

Patent

CA 2674555

An expandable electric wire expandable without needing a strong force (energy loss), capable of carrying a large current for driving power, and having an expandability under a light load and a small electric resistance. The expandable electric wire is characterized in that it has a structure composed of at least a core part, a conductor part, and a cover part, the core part is an elastic cylindrical body made up of an elastic body and an intermediate layer covering the peripheral surface of the elastic body, the conductor part includes a conductor wire which is a strand wire composed of thin wires, the conductor wire is wound and/or braided around the peripheral surface of the elastic cylindrical body, and the cover part is an external covering layer made of an insulator and covering the peripheral surface of the conductor part.

La présente invention concerne un fil électrique expansible pouvant se dilater sans nécessiter une grande force (perte d'énergie), capable de transporter un courant fort pour de l'énergie motrice, et ayant un caractère expansible sous une charge légère et une faible résistance électrique. Le fil électrique expansible se caractérise en ce qu'il présente une structure composée d'au moins une partie âme, une partie conductrice, et une partie gaine, la partie âme étant un corps élastique de forme cylindrique constitué d'un corps élastique et d'une couche intermédiaire recouvrant la surface périphérique du corps élastique, la partie conductrice comprenant un fil conducteur qui est un fil de toron constitué de fils minces, le fil conducteur étant enroulé et/ou tressé autour de la surface périphérique du corps élastique de forme cylindrique, et la partie gaine étant une couche de recouvrement externe constitué d'un isolant et recouvrant la surface périphérique de la partie conductrice.

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