JPH02111999U - - Google Patents
Info
- Publication number
- JPH02111999U JPH02111999U JP1938989U JP1938989U JPH02111999U JP H02111999 U JPH02111999 U JP H02111999U JP 1938989 U JP1938989 U JP 1938989U JP 1938989 U JP1938989 U JP 1938989U JP H02111999 U JPH02111999 U JP H02111999U
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- view
- circumferential body
- electroacoustic transducer
- bottom plate
- 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図ないし第７図は本考案の電気音響変換装
置の実施例を示し、第１図及び第２図は実施例１
を示し、第１図ａ，ｂは平面図及び切断正面図、
第２図は音圧―周波数特性図、第３図ａ，ｂは実
施例２の平面図及び切断正面図、第４図及び第５
図は実施例３を示し、第４図ａ，ｂは平面図及び
一部切断正面図、第５図は音圧―周波数特性図、
第６図及び第７図は実施例４の開放状態の斜視図
及び音圧―周波数特性図、第８図ａ，ｂは本考案
の原理説明用の平面図及び切断正面図、第９図ａ
，ｂは従来例の平面図及び切断正面図、第１０図
は第９図の音圧―周波数特性図である。
１３ａ，２１，２８ａ，３４……振動板、１３
ｂ，２２ａ，２８ｂ，３５……周側体、１４……
圧電型振動子、１６，２２ｂ，３０，３７ａ……
底板、２０，２６，３２……共鳴部。
1 to 7 show embodiments of the electroacoustic transducer of the present invention, and FIGS. 1 and 2 show embodiment 1 of the electroacoustic transducer of the present invention.
1A and 1B are a plan view and a cut front view,
Figure 2 is a sound pressure-frequency characteristic diagram, Figures 3a and b are a plan view and cutaway front view of Example 2, Figures 4 and 5.
The figure shows Example 3, FIG. 4 a and b are a plan view and a partially cutaway front view, and FIG. 5 is a sound pressure-frequency characteristic diagram.
6 and 7 are a perspective view and a sound pressure-frequency characteristic diagram of Embodiment 4 in an open state, FIGS. 8a and b are a plan view and a cutaway front view for explaining the principle of the present invention, and FIG. 9a is a
, b are a plan view and a cut front view of the conventional example, and FIG. 10 is a sound pressure-frequency characteristic diagram of FIG. 9. 13a, 21, 28a, 34... diaphragm, 13
b, 22a, 28b, 35...peripheral body, 14...
Piezoelectric vibrator, 16, 22b, 30, 37a...
Bottom plate, 20, 26, 32...resonance part.
Claims (1)
型振動子と、前記振動板の周縁に形成され前記振
動板の下側を包囲した周側体と、前記周側体の下
面を密閉し前記振動板、前記周側体とともに共鳴
部を形成した底板とを備えた電気音響変換装置。 A diaphragm, a piezoelectric vibrator mounted on the lower surface of the diaphragm, a circumferential body formed on the periphery of the diaphragm and surrounding the lower side of the diaphragm, and a lower surface of the circumferential body sealed. An electroacoustic transducer comprising: the diaphragm; and a bottom plate forming a resonance part together with the peripheral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1938989U JPH02111999U (en) | 1989-02-20 | 1989-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1938989U JPH02111999U (en) | 1989-02-20 | 1989-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02111999U true JPH02111999U (en) | 1990-09-07 |
Family
ID=31234855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1938989U Pending JPH02111999U (en) | 1989-02-20 | 1989-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02111999U (en) |
-
1989
- 1989-02-20 JP JP1938989U patent/JPH02111999U/ja active Pending
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