Patent ID: 7020295

Claim:
A piezoelectric electroacoustic transducer comprising: a substantially rectangular piezoelectric diaphragm having electrodes and flexurally vibrating in response to application of an alternating signal between the electrodes; a case having a supporting member disposed inside sidewalls of the case for supporting the piezoelectric diaphragm; terminals insert-molded in the case so as to have internal connections exposed in the supporting member and external connections exposed on the external surface of the case; a conductive adhesive for electrically connecting the electrodes of the piezoelectric diaphragm to the internal connections of the terminals; an elastic sealant for sealing a gap between an external periphery of the piezoelectric diaphragm and an internal periphery of the case; and a lid plate for closing an opening of the case; wherein the terminals are pressed terminals made of a punched metallic plate so that a flash-producing surface is to be a lower surface thereof, flashes on both respective side-edges of the internal connections are embedded inside the supporting member of the case so that the top surfaces of the internal connections are flush with the surface of the supporting member, and the external connections of the terminals are bent toward the bottom surface of the case via the side surfaces thereof.