Patent ID: 8824702

Claim:
A reverse-phase modulating structure of a piezoelectric ceramic speaker, comprising: a positioning frame; an acoustic generator provided in an inner edge of said positioning frame; two flexible units provided between said positioning frame and said acoustic generator, the two flexible units being respectively set on and in physical engagement with opposite sides of the acoustic generator so as to exert pressures on the opposite sides of the acoustic generator; and wherein an in-phase movement of said acoustic generator is modulated by the pressures exerted on said acoustic generator by said two flexible units in order to reduce a phase conflict of said ceramic speaker, to prevent sound quality distortion and such that high quality of sound of said ceramic speaker is enhanced and realized; and wherein holes are respectively formed in front and rear sides of said positioning frame corresponding in position to said two flexible units and rotating members are respectively fit in said holes to press said flexible units against said acoustic generator such that said rotating members are movable along said holes to adjust the pressures applied by said flexible units to said acoustic generator.