Folded insulated foil conductor and method of making same

Details Folded insulated foil conductor and method of making same Folded insulated foil conductor and method of making same

H - Electricity

01

B

H01B 7/00 (2006.01) H01F 27/28 (2006.01) H01F 27/32 (2006.01) H01F 41/06 (2006.01) H01R 43/00 (2006.01) H05K 3/00 (2006.01)

Patent

CA 2338237

A method of making various insulated conductor sizes during a transformer coil winding process by slitting and bonding insulating sheet materials (30) and a foil sheet conductor (42) into a composite foil conductor/insulation (44). The conductor/insulation composite (44) is made by folding the composite into a substantially U-shaped length which has a central portion between two leg portions (32, 34) and folding the leg portions (32, 34) of the "U" inwardly to a position substantially parallel to the central portion of the "U" to bring the free ends (38a, 40a) of the leg portions into opposing relation. This method provides a folded insulated foil conductor (44) having a two-conductor thickness surrounded by the overall insulation. Provision is also made for increasing the cross-sectional area of the conductor (42).

L'invention concerne un procédé de fabrication d'un conducteur isolé de dimensions variées, lors d'un processus d'enroulement de bobine de transformateur, par découpe et assemblage de matériaux en tôle d'isolation (30) et d'un conducteur en tôle feuilletée (42), de manière à former un composite d'isolation/conducteur feuilleté (44). Le composite isolation/conducteur (44) est fabriqué par pliage du composite en une longueur sensiblement en forme de "U" présentant une partie centrale entre deux portions formant des branches (32, 34) et pliage des branches (32, 34) du "U" vers l'intérieur, en une position sensiblement parallèle à la partie centrale du "U", de manière à amener les extrémités libres (38a, 40a) des branches à l'opposé l'une de l'autre. Ce procédé permet la fabrication d'un conducteur feuilleté isolé plié (44) comportant deux épaisseurs de conducteur entourées par l'isolation d'ensemble, des moyens étant également prévus pour accroître l'aire de la section transversale du conducteur (42).

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