Bone conduction device and tympanum thereof

Details Bone conduction device and tympanum thereof Bone conduction device and tympanum thereof

H - Electricity

04

R

H04R 1/00 (2006.01) H04R 1/10 (2006.01) H04R 9/02 (2006.01) H04R 25/00 (2006.01)

Patent

CA 2570642

A bone conduction device, which can be efficiently mounted, without generating a dead space, in a case having a limited installation space, such as a cellular phone case having a large display screen, and a tympanum for such bone conduction device are provided. A magnetic sound converting device has an outer magnetic structure wherein a voice coil (3) is mounted on a center magnetic pole (2) of a yoke (1) and a magnet (4) is arranged on the outer side of the voice coil (3). The yoke (1) and the center magnetic pole (2) thereof are vertically long, the magnet (4) is arranged on the short side edge parts on the both sides of the yoke, and a tympanum fixing part (6) is arranged on the outer side of each magnet (4) on a magnet arranging axis.

Il est prévu un dispositif de conduction osseuse susceptible d~être monté efficacement, sans créer d~espace inutilisé, dans un boîtier offrant un espace d~installation restreint, comme un boîtier de téléphone cellulaire doté d~un grand écran d~affichage, et un tympan pour un dispositif de conduction osseuse de ce type. Un dispositif de conversion magnétique du son comprend une structure magnétique extérieure dans laquelle une bobine mobile (3) est montée sur un pôle magnétique central (2) d~une culasse (1) et un aimant (4) est disposé sur le côté extérieur de la bobine mobile (3). La culasse (1) et son pôle magnétique central (2) sont allongés dans la direction verticale, l~aimant (4) est disposé sur les parties de bord des petits côtés des deux côtés de la culasse, et une partie de fixation de tympan (6) est disposée sur le côté extérieur de chaque aimant (4) sur l~axe de disposition des aimants.

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