PIEZO VIBRATION MODULE

摘要

The present invention relates to a piezoelectric vibration module which is surrounded with a top case and a bottom case and includes a vibration plate which linearly vibrates and includes a piezoelectric device and an internal composition member like a first stopper which prevents a direct collision with the top plate. Especially, the present invention is the piezoelectric vibration module which further includes a second stopper in the bottom case.