Patent ID: 8494188

Claim:
A piezoelectric ceramic headphone structure, comprising: a positioning frame having an open front end and an open rear end; a steel sheet, having an area approximately equal to that of the positioning frame, disposed at and closing the front end of the positioning frame, and provided with a sound-making member that is formed by stacking a plurality of ceramic material layers and has a surface area smaller than the area of the steel sheet; a vibrating member, being shaped as a sheet body attached to and closing the rear end of the positioning frame and opposing the steel sheet; wherein a sound-making module is formed of a closed chamber delimited by the steel sheet that carries the sound-making member and the vibrating member respectively closing the front end and the rear end of the positioning frame, whereby after the sound-making member of the steel sheet receives an audio signal, a sound is guided out through response of the vibrating member.