H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 38/18 (2006.01) H01F 27/28 (2006.01) H01F 41/00 (2006.01) H01F 41/04 (2006.01)
Patent
CA 2627226
A transformer makes it possible to transmit electric power by electromagnetic induction between first (11) and second coils concentrically arranged on first (7) and second (8) tubular parts, respectively, which are made of a ferromagnetic material and coaxially mounted in such a way that the external surface (13a, 13b, 13c) of one part is rotatable in front of the internal surface (14a, 14b, 14c) of the other part. Each surface consists of two straight cylindrical rotatable surfaces (13a, 13c; 14a, 14c) which have different diameters and extend from one axial end of the part (7; 8) to the intermediate radial flange (13b; 14b) of the connection thereof. Said parts (7; 8) are arranged in a head-to-tail manner one into another in such a way that an annular space is delimited between the flanges (13b; 14b) for receiving the coils (11, 12) between two gaps each of which is delimited by two (13a, 14a; 13b, 14b) cylindrical surfaces positioned in front of the first (7) and second (8) parts. Each coil comprises at least one layer of several tape-shaped threads.
Le transformateur assure la transmission d'énergie électrique par induction électromagnétique entre des premier (11) et deuxième (12) bobinages disposés concentriquement sur des première (7) et deuxième (8) pièces tubulaires respectivement, en matériau ferromagnétique, montées coaxialement de manière qu'une surface externe (13a, 13b, 13c) de l'une puisse tourner en regard d'une surface interne (14a, 14b, 14c) de l'autre. Ces surfaces sont composées chacune de deux surfaces cylindriques droites (13a, 13c; 14a, 14c) de révolution de diamètres distincts, s'étendant chacune d'une des extrémités axiales de la pièce (7; 8) à un épaulement radial intermédiaire (13b; 14b) de raccordement de ces surfaces. Les pièces (7; 8) sont disposées tête-bêche l'une dans l'autre de manière à délimiter entre les épaulements (13b; 14b) un espace annulaire recevant les bobinages (11, 12) entre deux entrefers annulaires délimités chacun par deux (13a, 14a; 13b, 14b) des surfaces cylindriques en regard des première (7) et deuxième (8) pièces. Chaque bobinage comprend au moins une couche de plusieurs spires en forme de ruban.
Dugue Francois
Privat Michel
Sadarnac Daniel
Schwander Denis
Centre National D'etudes Spatiales
Robic
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