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JPS5946093

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DESCRIPTION JPS5946093
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a cross-sectional view of a conventional piezoelectric speaker FIG. 2 is a cross-sectional
view of a piezoelectric speaker according to the present invention, and FIGS. Is a schematic view
of the vibration mode, b is a cross-sectional view of the piezoelectric drive unit, and C is a front
view of the piezoelectric drive unit. 1 is a frame, 2 is a cone diaphragm, 21 is a piezoelectric drive
element, 21a is a unimorph piezoelectric element, and 21b is a damping material.
11-05-2019
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