Piezoelectric speaker and electroacoustic transducer
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United States of America Patent
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May 15, 2018
Issued Date -
N/A
app pub date -
Dec 15, 2015
filing date -
Dec 17, 2014
priority date (Note) -
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Abstract
A piezoelectric speaker has a piezoelectric element and vibration plate. The piezoelectric element has a base body with a mounting surface, as well as first and second terminals that are formed on the mounting surface with a distance between them. The vibration plate has a conductive body joined to the piezoelectric element and having a principle surface facing the mounting surface, as well as a first hole with or without a bottom which is formed on the principle surface in a region facing the first terminal to form a space between the body and first terminal. The piezoelectric speaker is capable of preventing the external electrodes of the piezoelectric element from shorting to each other.
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