Ultra low frequency transducer and loud speaker comprising same

Details Ultra low frequency transducer and loud speaker comprising same Ultra low frequency transducer and loud speaker comprising same

H - Electricity

04

R

H04R 9/06 (2006.01) H04R 1/22 (2006.01) H04R 7/18 (2006.01)

Patent

CA 2387939

An ultra low frequency transducer or subwoofer for automotive speaker systems with a concave diaphragm and a pleated surround. Preferably, the periphery of the diaphragm is square or rectangular and sized to be substantially coextensive with the front of the speaker housing or cabinet. In this way, air displacement in the subwoofer is maximized for a given size of enclosure, and thus so is the loudness of the speaker. The transducer typically includes a frame or basket with a square front for supporting the periphery of the diaphragm. The preferred diaphragm includes a convex surround with pleated corners. For increased durability, trusses are formed in the diaphragm.

L'invention concerne un transducteur à très basse fréquence ou caisson de basses pour systèmes de haut-parleurs d'automobile à diaphragme concave et bordure plissée. De préférence, le pourtour du diaphragme est carré ou rectangulaire, et conçu pour être sensiblement adjacent à la partie frontale du corps ou coffret de haut-parleur. De cette manière, le déplacement d'air dans le caisson de basses est maximisé pour une taille donnée d'enceinte, ainsi que la puissance du haut-parleur. Le transducteur comprend généralement un cadre ou panier présentant une partie frontale carrée pour soutenir le pourtour du diaphragme. Le diaphragme préféré comprend une bordure convexe à coins plissés. Pour accroître la durabilité du diaphragme, des renforts sont formés dans celui-ci.

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