PIEZOELECTRIC SOUNDING BODY

摘要

[Object] To provide a piezoelectric sounding body in which a stable high sound pressure can be obtained over a wide frequency band. [Solving Means] A piezoelectric sounding body includes a resin film, a piezoelectric vibrating plate A attached to the center of one surface of the resin film B with a tackiness layer C, and a case supporting the periphery of the resin film B. The piezoelectric vibrating plate A is formed in a rectangular shape. An adhesive 25 is applied between the middle of each long side of the piezoelectric vibrating plate A and the resin film B, along each long side of the piezoelectric vibrating plate. The separation between the piezoelectric vibrating plate and the tackiness layer can be prevented during sounding, and a stable sound pressure can be obtained for a prolonged period.