Title:
ACOUSTIC GENERATOR, ACOUSTIC GENERATION DEVICE PROVIDED WITH ACOUSTIC GENERATOR, AND ELECTRONIC APPARATUS PROVIDED WITH ACOUSTIC GENERATOR
Document Type and Number:
WIPO Patent Application WO/2015/182197
Kind Code:
A1
Abstract:
[Problem] To provide an acoustic generator having improved sound qualities, an acoustic generation device that is provided with the acoustic generator, and electronic apparatus that is provided with the acoustic generator.
[Solution] An acoustic generator (1) of the present invention is characterized in including: a piezoelectric element (11) as an exciter; a diaphragm (12), which has the piezoelectric element (11) attached thereto, and which vibrates with the piezoelectric element (11) due to vibration of the piezoelectric element (11); a frame body (13), which is provided on an outer peripheral section of the diaphragm (12), and which supports the diaphragm (12); and a coating film layer (14) that is provided on the inner side of the frame body (13). The acoustic generator is also characterized in that the coating film layer (14) contains a plurality of filler materials (142) in a resin (141), said filler materials being different from the material of the resin (141).
Inventors:
MURAKAMI MICHIYA (JP)
Application Number:
PCT/JP2015/055834
Publication Date:
December 03, 2015
Filing Date:
February 27, 2015
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
H04R7/04; H04R1/28; H04R17/00
Foreign References:
| JP2012110018A | 2012-06-07 | |||
| JP2008167475A | 2008-07-17 |
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