Title:
SPHERICAL PIEZOELECTRIC SPEAKER
Document Type and Number:
Japanese Patent JP2005294987
Kind Code:
A
Abstract:
To provide a spherical piezoelectric speaker with ease of manufacturing process and less manufacturing cost.
The piezoelectric speaker comprising a vibrator, a piezoelectric vibrator, and a pressure imparting tool 2, is characterized by having a structure such that the vibrator is a nearly spherical package 1 wherein fluid of gas or liquid is filled, and the piezoelectric bimorph being the piezoelectric vibrator which is pressurized in a direction of the package 1 by the pressure imparting tool 2 is fixed to the surface of the package 1.
Inventors:
SUZUKI AKIKO
Application Number:
JP2004103910A
Publication Date:
October 20, 2005
Filing Date:
March 31, 2004
Export Citation:
Assignee:
NEC TOKIN CORP
International Classes:
H04R17/00; H04R1/00; H04R1/20; H04R7/12; (IPC1-7): H04R17/00; H04R1/00; H04R1/20; H04R7/12
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