Inductor

Details Inductor Inductor

H - Electricity

01

F

H01F 17/06 (2006.01) H01F 37/00 (2006.01)

Patent

CA 2268716

This invention provides an inductor including an elongate conductor bar (10) of rectangular cross section, at least part of the bar being surrounded by a sleeve (20) which provides substantially no electrical conduction path through the sleeve in a direction away from the conductor bar. Such a sleeve (20) concentrates the lines of magnetic flux in the sleeve. The advantage of such an inductor is that at higher frequencies (e.g. above 100 Hz) the effect of the "skin effect" is reduced whilst at lower frequencies but high currents the stress on the inductor is also reduced.

L'invention se rapporte à une bobine d'inductance, qui comprend une barre (10) conductrice allongée de section transversale rectangulaire, dont au moins une partie est entourée d'un manchon (20) qui empêche sensiblement un courant électrique provenant de la barre conductrice de le traverser. Ainsi, ledit manchon (20) concentre les lignes d'induction magnétique. Une telle bobine d'inductance présente l'avantage qu'à des fréquences élevées (par exemple supérieures à 100 Hz), l'effet de peau est atténué tandis qu'à des fréquences moins élevées, mais à des courants élevés, la contrainte qu'elle subit est également atténuée.

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