Miniature full range loudspeaker

H - Electricity – 04 – R

Patent

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Details

H04R 9/06 (2006.01)

Patent

CA 2304765

In a miniature loudspeaker (10) of the electromagnetic voice coil type with a stiff edge-driven concave diaphragm (16), a single suspension member (18) attached to a particular location on the voice coil form (26A) achieves high excursion performance to deliver a full audio range in a cylindrical package of minimal thickness and diameter suitable for sound systems of compact multi-media equipment including PC CRT monitors and flat displays as in lap top computers. The front end of the tubular voice coil form is attached to the perimeter of the diaphragm. The front end of the tubular voice coil form is attached to the perimeter of the diaphragm. The coaxial voice-coil-diaphragm assembly is supported by a single resilient surround suspension member with its inner edge attached around the voice coil form at a location that is offset slightly from the front end of the voice coil form.

Dans un haut-parleur miniaturisé (10) à bobine électromagnétique mobile possédant un diaphragme (16) rigide concave commandé par les bords, un élément de suspension unique (18) fixé à un emplacement déterminé de la bobine mobile (26A) remplit une fonction d'excursion haute afin de produire une plage totale de fréquences sonores dans un boîtier cylindrique d'épaisseur et de diamètre minimum approprié pour les systèmes sonores d'équipements compacts multimédia, y compris des moniteurs à tube cathodique d'ordinateurs portables et des écrans plats, tels que ceux d'ordinateurs personnels. L'extrémité avant de la bobine mobile tubulaire est fixée au périmètre du diaphragme. L'ensemble coaxial constitué par la bobine mobile et le diaphragme est supporté par un élément de suspension unique circulaire élastique dont le bord intérieur est fixé autour de la bobine mobile au niveau d'un emplacement légèrement décalé par rapport à son extrémité avant.

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