Armored voice coil assembly for use in high power...

Details Armored voice coil assembly for use in high power... Armored voice coil assembly for use in high power...

H - Electricity

04

R

H04R 9/04 (2006.01) H04R 9/06 (2006.01)

Patent

CA 2659363

An armored voice coil assembly comprises a former that is impregnated with a curable resin, preferably polyimide resin. Voice coil wire is wound around the outside surface of the former and is then preferably encased with an outer layer of resin impregnated glass fabric wrapped around the voice coil windings, effectively enveloping the voice coil within inner and outer layers of fabric and resin. The armored voice coil assembly is then cured into a solid shape.

L'invention concerne un système de bobine acoustique blindée qui comprend un gabarit imprégné d'une résine durcissable, de préférence une résine polyimide. Le fil de la bobine acoustique est enroulé autour de la surface externe du gabarit puis est de préférence recouvert d'une couche externe de tissu de fibre de verre imprégné de résine enroulé autour des spires de la bobine acoustique, enveloppant de manière efficace la bobine acoustique d'une couche interne et d'une couche externe de tissu et de résine. Ce système de bobine acoustique blindée est ensuite durci pour former un élément solide.

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