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JPS4888718

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DESCRIPTION JPS4888718
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the principle of a piezoelectric acoustic
device, FIG. 2 shows a conventional one, and FIG. 3 shows an explanatory view of an embodiment
of the present invention. 1 · · · Piezoelectric element, 2, 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · adhesive adhesive Sound box. '7 lP / 朋 /-7-41 one real opening 4888 18 (2) 42 one
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a sound 41 device using the present invention piezoelectric plate. As shown in FIG. 1, as a
blue-collar type blue-collar device i; 11911, a piezoelectric element +11 on which front and back
KM electrodes (21 (2) are attached) and a diaphragm (3) are bonded 14 Hereinafter this is
referred to as a complex. ) (Ca for Reed 鉋 (5) valence) K oscillation 1 path 46) KJl 絖 L and
acting at the unique resonance frequency of the complex K causes the composite rod to flex and
vibrate to generate a feeding sound It is something that The 4B- & 871B-02 oscillation circuit (6)
is arranged on the back of the truss unit + 71 shown in FIG. ing. On the front surface, a
perforated grid lid +91 is provided, and on the front surface, a resonance plate O11 is screwed.
So lead! As I (51 (51) connects the oscillation circuit (6) and the complex (7) by K, the sound
wave L7 generated through the hole is amplified by resonance with the resonance & 011 L. This
L-shaped one is a tone that is monotonous and kinky, and the earlobe 9 is bad and causes a
physiological disorder. The present invention is a book taught as shown in FIG. 3 above, that is,
the composite (7) is adhesively supported on the projection provided with the case (8) K, and the
circuit (61 is lead @ (5) It is connected by f51. Complex (7)! The sound box 03 with an open of
1111 fl KIN is installed with the open part facing the assembly. However, this box O2σ case (8)
is one step higher or it is fiK mounted. There is a hole 1111011 in the outside. In operation, the
complex (7) driven f'I from the vibration circuit (6) K causes bending vibration to generate a
sound wave. This sound wave -248-88718-03 音 III 翰 03 Resonant amplification ': 81
transmitted to the outside, the present idea is that by providing the above sound% box aX5 The
sound is very easy to live, and has a beautiful tone. For example, when the generation cylinder flI
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number is 2.6 VH 2 and the # period is 10 cycles, the cricket squeals become, and in 10 KH 2
stalks squeak moths K m. In the case of 2.6 KHz, the distance between the base of the box and
the body at 0 is 10-12 In, and the distance between the body of one bamboo and the complex is
1 to 1 The effect of the present invention is not inferior to the effect of the present invention
even if the shape of the C sound box which is the best in terms of timbre 2 1 is a square, a
truncated pyramid 1 round 鉗 trapezoid, or an R cedar moth or a t 'LK.
In addition, one-piece production of a child with a piezoelectric material is sounding by a method
other than adhesion.
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