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Title:
ACOUSTIC GENERATOR AND ELECTRONIC APPARATUS PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2017/145649
Kind Code:
A1
Abstract:
Disclosed is an acoustic generator that is provided with: a laminated piezoelectric element 1 having a laminated body 13 in which piezoelectric layers 11 and internal electrode layers 12 are alternately laminated; and a diaphragm 2 having a main surface. The laminated piezoelectric element 1 is disposed such that the lamination direction is along the main surface of the diaphragm 2. Consequently, since displacement in the lamination direction of the laminated piezoelectric element, said displacement being what is called displacement in the d33 mode, is used for the purpose of vibrating the diaphragm, a piezoelectric d constant becomes large compared with that in displacement in the d31 mode, and the displacement quantity and generative force of the laminated piezoelectric element can be improved.

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Inventors:
IWASAKI,Satoru (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
Application Number:
JP2017/003090
Publication Date:
August 31, 2017
Filing Date:
January 30, 2017
Export Citation:
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Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
International Classes:
H04R17/00; H04R7/04
Foreign References:
JP2014168132A2014-09-11
JP2006287725A2006-10-19
JP2015185819A2015-10-22
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