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JPS56126697

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DESCRIPTION JPS56126697
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing one
embodiment of the present invention, FIG. 2 'is a sound pressure-frequency characteristic
diagram for explaining comparison with the conventional example, and FIG. 3 is a diameter ratio.
Is a sound pressure-frequency characteristic diagram for explaining the case of changing. 1 ······
Diaphragm, 2 ······ Piezoelectric element, D− ········ Diameter, tl · t 2 ·············
DETAILED DESCRIPTION OF THE INVENTION The present study relates to the most recent nizi
sounding body such as used in a melody notification 1 歿 l E 奄 P watch or the like. Recently, in
the Ichiko clock, etc., Hieno sounding body as a 斥 1-C alarm sound 鳴 メ ロ 1 〜 メ ロ テ ィ ー
か テ ィ ー テ ィ ー 提案 提案 カ カ 才 才 用 い 用 い 用 い 用 い 用 いAt that time, the small
hieno blind body is less likely to get out the area of 1 'l 7 11', 4 調 調 坪 坪 貿 貿 こ こ こ こ 本 本
本 本 本 −1 −1 −1 −1 −1 −1 −1 −1 本 本 こ と こ と こ と 二 二 二 二 二 二 よ っ て よ っ
てよってよってよってよってよってよってよってよってよってよってよって
辰 辰 ト ト ト Q Q Q Q すThe ingredients'? +Qliせしめ、か! By considering the ratio of the
diameter of the 1 diaphragm ('/,-/; 1 diaphragm and 1 7 elements), the high frequency
component is suppressed, and a large improvement of the sound quality is made possible. Figure
7 shows an embodiment of the invention according to the present invention. Figure 7 shows a
hieno color body according to this embodiment, the diaphragm 1 and the I-E device. 2 (direct)
(41) -32 mm, 17 mm tl-0, I mm of the diaphragm 1, ll I diameter d 22 u of the lt electric element
2 (diameter ratio 069), (thickness 12-0.1 miserable) Sound pressure (P) frequency (f + special
17L1's) at the 2nd district at the time of ten string his drive, to the above · · method j with the
resignation of the diaphragm 1 in the above method j = 4: in the sounding body according to the
embodiment In the case of a speaker with a conventional structure for comparing the waiting
and setting of 4 B (a conventional structure for comparing small distortions, VPt-+,-to which the
sounding body of the conventional structure is small. / Less, vibration & 1 [32m ++, 1 l tlO, l? l 屯
〉 1 掌 ′ ′ ′) 101 d d-16, 8 mm (: mouth f main ito, 5251, 1y 【[202 關:-: l l-+ ': i two [111 et
04-05-2019
1
al. : 4 · · j-disease 191. □ · · Koyari sound body AI)) or to Tori 1 co-frequency 著 IQ or squeezingly
low [, and (2) low-frequency share of the sound or relatively high-frequency components
decrease doing. Further, the generation of high frequency sound, which has deteriorated the
sound quality in the sounding body B of the conventional structure, can be suppressed as much
as possible in the sounding body A according to the present embodiment j, and can be made a
good tone. FIG. 3 shows the sound pressure (P) -frequency-f (f) characteristics when the diameter
d of the pressure element 1'2 is changed in the thinned piezoelectric sounding body of FIG. Is the
case of d / 'DO 569, Al is d / D 0.63, A211 d / D-0,5. The lowest resonance frequency is 1tf in
any case. If the diameter ratio d / D is small, the high frequency component comes out a lot, and
there is no difference between the sound quality and the light and sound body with good sound
quality.
The lowest value of the effective diameter ratio d / 'D for improvement of blindness' 1' is
obtained empirically as shown in the case of Al d / D-0, 63, 0.63 ↓ In the toss, it is possible to
light the fruit in the light) Runachi 1 Tengu 1y '+ is the 4 W temporary l F (' r '丘 hill yellow 1 lj
and force, · resonance formation In addition, there is also an intramedullary bone due to the
material V ↓, and other suitable ones may be 1 (3). As described above, according to the present
invention, it is possible to obtain a thin hibernation body with high sound quality and many lowpitched bass components, and to make a notification with good sound quality in a small device
such as an electronic watch. 4I 而 而 − 説明 な な な な 第 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 : / 1 is a sound 1t-per-circle number characteristic 1z1 for
explaining the case where the diameter ratio is changed. . 1-diaphragm, 2-HE'jlj element f-1DaDHl [1 [2 ·) k, 8 代 代 福 買 4 4 (4) d 21, シ 7 7 □ 12669] W '/), 4 applicants Shah,' l1.lj
Company representative Fuku 1: Back (db) p, h, f. 1ト、7・パ・、ノ′7・・、7メj! --Tree
to yearly 'no' · · A □ <wb) / 234 557 (KHlpa 2 R '7 7 ·' · · A 2 y ", one, X (l X '/! I /..'- 1-1-fold mat,
'/' 'o --- 1, .quadrature.X11, -8- o y ,,. 7 · ′: ····· 11 11 ′ ′, +1, / °: / to 2347 (KH 2) C − − ;;
Large company third R 1 Fukuto Aihiko 126697 −
04-05-2019
2
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