Optimized piezo design for a mechanical-to-acoustical...

H - Electricity – 01 – L

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Details

H01L 41/09 (2006.01) H02N 2/02 (2006.01)

Patent

CA 2610466

The present invention relates to an acoustic transducer that coverts a mechanical motion into acoustical energy. The acoustic transducer includes a diaphragm and at least one support on at least a portion of the diaphragm. At least one actuator may then be provided that is operatively coupled to the diaphragm, wherein the diaphragm or the actuator include one or more areas of reduced stiffness relative to other areas on the diaphragm or actuator. In addition, the present invention relates to modifications in actuator design with respect to engagement of the diaphragm and engagement of the actuator with a given support.

La présente invention se rapporte à un transducteur acoustique, qui convertit un mouvement mécanique en énergie acoustique. Le transducteur acoustique comprend un diaphragme et au moins un support situé sur au moins une partie du diaphragme. Au moins un actionneur peut être couplé de manière fonctionnelle avec le diaphragme, le diaphragme ou l'actionneur comportant une ou plusieurs zones présentant une rigidité réduite par rapport aux autres zones du diaphragme ou de l'actionneur. L'invention a également trait à des modifications apportées à la conception de l'actionneur quant à sa venue en prise avec le diaphragme et avec un support donné.

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