Piezoelectric sounding body and electro-acoustic conversion device .

摘要

The present invention external electrode of the piezoelectric element is to provide prevention possible piezoelectric sounding body that a short circuit . A piezoelectric sounding body is provided with a piezoelectric element , a vibration plate . The piezoelectric element includes a body having a mounting surface , is formed on the mounting surface , and first and second terminal portions which are spaced apart from each other . The vibration plate is bonded to the piezoelectric element , and the body portion of the electrically conductive having a major surface opposite to the mounting surface , and the body portion is formed in a region opposed to said first terminal portion of said major surface I and a first hole portion having a bottom or no bottom to form a gap between the first terminal portion . BACKGROUND 2 .