Sound production assembly and piezoelectric loudspeaker

The embodiment of the utility model discloses a sound production assembly and a piezoelectric loudspeaker. The sound production assembly comprises a plurality of layers of piezoelectric vibration units. Wherein the piezoelectric vibration unit comprises two layers of conductive films and a piezoelectric film arranged between the two layers of conductive films. Each layer of piezoelectric vibration unit is arched to form a plurality of convex parts, a sound outlet channel is formed between a part of two adjacent layers of piezoelectric vibration units, and the convex parts on the two layers of piezoelectric vibration units corresponding to the sound outlet channel are arched towards the sound outlet channel. Therefore, the effective vibration area of the piezoelectric vibration unit is increased through the arrangement of the convex part, and the sound pressure can be enhanced. 本实用新型实施例公开了一种发声组件和压电扬声器，该发声组件包括多层压电振动单元。其中，压电振动单元包括两层导电薄膜和设置在两层导电薄膜之间的压电薄膜。每层压电振动单元上拱起形成多个凸起部，部分相邻的两层压电振动单元之间形成有出音通道，出音通道对应的两层压电振动单元上的