Moving-coil loudspeaker

H - Electricity – 04 – R

Patent

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Details

H04R 9/06 (2006.01) H04R 7/16 (2006.01) H04R 9/02 (2006.01) H04R 9/04 (2006.01)

Patent

CA 2309209

A loudspeaker (1) having a substantially cup-shaped frame (2); a magnetic body (3) extending inside the frame (2) and coaxial with a longitudinal axis (A) of the frame (2); a substantially truncated-cone-shaped diaphragm (4) fitted in axially-sliding manner to the magnetic body (3); and an actuating coil (8) fitted in axially-sliding manner to the magnetic body (3) and integral with the diaphragm (4); the loudspeaker (1) also having a first annular centering and damping membrane (14) connecting the magnetic body (3) to the diaphragm (4); and a second annular centering and damping membrane (17) connecting the coil (8) to the lateral wall (18) of the frame (2).

L'invention concerne un haut-parleur qui comporte un saladier (2) cupuliforme, un corps magnétique (3) s'étendant à l'intérieur du saladier (2) et monté coaxialement par rapport à un axe longitudinal (A) de ce dernier, une membrane (4) de forme sensiblement tronconique montée dans l'axe du corps magnétique (3) et coulissant par rapport à celui-ci et une bobine de commande (8) montée dans l'axe du corps magnétique (3), coulissant par rapport à celui-ci et intégrée à la membrane (4). Le haut-parleur (1) comporte également une première membrane d'amortissement (14) et de centrage annulaire reliant le corps magnétique (3) à la membrane (4) et une seconde membrane d'amortissement (17) et de centrage annulaire reliant la bobine (8) à la paroi latérale (18) du saladier (2).

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