Piezoelectric loudspeaker

A piezoelectric loudspeaker, comprising:

• a loudspeaker box comprising a main body and a cover, the main body having an accommodation trough at one side thereof, at least one positioning portion located at a first end of the accommodation trough, and a first retaining trough located at a second end of the accommodation trough;
• the cover having a second retaining trough, the cover being adapted to cover the accommodation trough of the main body;
• an oscillator disposed in the accommodation trough of the main body of the loudspeaker box, the oscillator comprising a plate and two piezoelectric members coupled to two sides of the plate, the plate having a fixed end coupled to the positioning portion at the first end of the accommodation trough and a free end extending toward the first retaining trough at the second end of the accommodation trough;
• two damping members made of silicone, the two damping members being respectively disposed in the first retaining trough of the loudspeaker box and the second retaining trough of the cover, the two damping members being pressed against an edge of the free end of the plate of the oscillator;
• and
• a plurality of terminals disposed in the accommodation trough of the main body of the loudspeaker box and electrically connected with the oscillator.