JPH0260399U - - Google Patents
Info
- Publication number
- JPH0260399U JPH0260399U JP14017888U JP14017888U JPH0260399U JP H0260399 U JPH0260399 U JP H0260399U JP 14017888 U JP14017888 U JP 14017888U JP 14017888 U JP14017888 U JP 14017888U JP H0260399 U JPH0260399 U JP H0260399U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- coupling ring
- diaphragm
- folds
- bonding plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図はこの考案の一実施例である圧電スピー
カの振動板の一部を示す平面図、第２図は第１図
の振動板を用いて形成した圧電スピーカの構成を
示す断面図、第３図は第２図の振動板と結合リン
グの結合部の一部を示す斜視図、第４図は従来の
圧電スピーカの振動板を示す平面図、第５図は第
４図の振動板を用いて形成した圧電スピーカの構
成を示す断面図、第６図は第５図の振動板と結合
リングの結合部を示す斜視図である。
図において、１……振動板、２……波ひだ、３
……中央ドーム部、４……円弧部、５……３角形
斜面、６……エツジ部、７……平坦部、８……フ
レーム、９……振動子、１０……重錘、１１……
粘弾性層、１２……固定端、１３……結合リング
、１４……外縁端部、１５……駆動点、１６……
端子板、１７……空気室、１８……リング上面、
１９……３角溝、２０……間隙、２１……接着平
面、２２……平坦面、２３……分散形開口部であ
る。なお、各図中、同一符号は同一、又は相当部
分を示す。
FIG. 1 is a plan view showing a part of the diaphragm of a piezoelectric speaker that is an embodiment of this invention, FIG. 2 is a sectional view showing the structure of a piezoelectric speaker formed using the diaphragm of FIG. Fig. 3 is a perspective view showing a part of the joint between the diaphragm and the coupling ring in Fig. 2, Fig. 4 is a plan view showing the diaphragm of a conventional piezoelectric speaker, and Fig. 5 shows the diaphragm in Fig. 4. FIG. 6 is a cross-sectional view showing the structure of a piezoelectric speaker formed using the present invention, and FIG. 6 is a perspective view showing a connecting portion between the diaphragm and the coupling ring shown in FIG. In the figure, 1... diaphragm, 2... wave folds, 3
... Central dome part, 4 ... Arc part, 5 ... Triangular slope, 6 ... Edge part, 7 ... Flat part, 8 ... Frame, 9 ... Vibrator, 10 ... Weight, 11 ... …
Viscoelastic layer, 12... fixed end, 13... coupling ring, 14... outer edge end, 15... driving point, 16...
Terminal board, 17...air chamber, 18...ring top surface,
19... Triangular groove, 20... Gap, 21... Bonding plane, 22... Flat surface, 23... Distributed opening. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
起振源とする圧電スピーカにおいて、中心ドーム
部から周辺のエツジ部にわたる多数の３角矢羽根
形の波ひだが放射状に分布する振動板において、
前記各波ひだの裏側の駆動点に、結合リングを挿
入するための接着平面を形成し、この接着平面に
平坦面を持つ結合リングを嵌入接着し、前記各波
ひだが個々に空気室と連通する音響小開口を開設
するように構成したことを特徴とする圧電スピー
カ。 In a piezoelectric speaker whose excitation source is a piezoelectric vibrating element made of piezoelectric ceramics, etc., a diaphragm has a large number of triangular feather-shaped wave folds distributed radially from the central dome to the peripheral edges.
A bonding plane for inserting a coupling ring is formed at the driving point on the back side of each of the corrugated folds, a coupling ring having a flat surface is inserted and bonded to this bonding plane, and each of the corrugated folds is individually communicated with an air chamber. A piezoelectric speaker characterized in that it is configured to open a small acoustic aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988140178U JPH055755Y2 (en) | 1988-10-27 | 1988-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988140178U JPH055755Y2 (en) | 1988-10-27 | 1988-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0260399U true JPH0260399U (en) | 1990-05-02 |
| JPH055755Y2 JPH055755Y2 (en) | 1993-02-15 |
Family
ID=31404117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988140178U Expired - Lifetime JPH055755Y2 (en) | 1988-10-27 | 1988-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH055755Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588000A (en) * | 1981-07-06 | 1983-01-17 | Murata Mfg Co Ltd | Piezoelectric speaker |
| JPS58108897A (en) * | 1981-12-22 | 1983-06-29 | Sanyo Electric Co Ltd | Piezoelectric speaker |
-
1988
- 1988-10-27 JP JP1988140178U patent/JPH055755Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588000A (en) * | 1981-07-06 | 1983-01-17 | Murata Mfg Co Ltd | Piezoelectric speaker |
| JPS58108897A (en) * | 1981-12-22 | 1983-06-29 | Sanyo Electric Co Ltd | Piezoelectric speaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH055755Y2 (en) | 1993-02-15 |
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