PIEZOELECTRIC VIBRATOR FOR REGENERATING SOUND, AND PIEZOELECTRIC PANEL SPEAKER AND PIEZOELECTRIC EARPHONE HAVING THE SAME

摘要

If you are using a piezoelectric present invention is to play the notes of the piezoelectric underlying problems that have low bass relates to the ability to play region with a multi-layer structure of the multilayer piezoelectric resonator of the piezoelectric member of a new structure which allows for high sound pressure over a wide range to significantly reproduction. A piezoelectric vibrator according to the present invention include copper, tungsten, and a metal elastic member such as aluminum, attached to one or both sides of the elastic body is one of a piezoelectric actuator made of a piezoelectric and non-woven fabrics, nano fibers, porous nanoparticles, such as carbon nanotubes, across a high sound-absorbing material, such as nanoparticles, by attaching one or more other laminated piezoelectric actuator, when placed between the sound-absorbing body using the piezoelectric layer to reproduce the sound of multiple piezoelectric is a fundamental problem that has low bass reproduction capacity can be increased, the two or more piezoelectric actuator has the advantage that pressure can be also improved by laminating. ; Also, characterized in that the cross-sectional area and the same layer, or a laminated cross-section shape of each layer of the piezoelectric layer is also used, or in the form of the number that can be different from each other.