JPH0170488U - - Google Patents
Info
- Publication number
- JPH0170488U JPH0170488U JP1987163678U JP16367887U JPH0170488U JP H0170488 U JPH0170488 U JP H0170488U JP 1987163678 U JP1987163678 U JP 1987163678U JP 16367887 U JP16367887 U JP 16367887U JP H0170488 U JPH0170488 U JP H0170488U
- Authority
- JP
- Japan
- Prior art keywords
- bimorph piezoelectric
- elastic body
- plastic case
- piezoelectric element
- watertight
- 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
- 239000004033 plastic Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
Description
第１図、第２図及び第３図は従来から存在する
水中用受話器の一例の断面図、第４図はこの考案
に係る水中用受話器の一実施例の縦断面図、第５
図は第４図における矢視Ａ―Ａ線断面図である。
又、第６図はその周波数特性図、第７図は水圧特
性図である。
１……防水ケース、２……ダイナミツクスピー
カー、３……振動板、４……マグネツト、５……
コイル、６……振動伝達体、７……ダンパー、８
……バイモルフ圧電素子、９……ゴムケース、１
０……ゴムケース、１１……オイル、１２……弾
性体、１３……空間、１４……プラスチツクケー
ス、１５……信号ケーブル、１６……リード線、
１７……カバー。
1, 2, and 3 are cross-sectional views of an example of a conventional underwater handset, FIG. 4 is a vertical cross-sectional view of an embodiment of an underwater handset according to this invention, and FIG.
The figure is a sectional view taken along the line AA in FIG. 4.
Moreover, FIG. 6 is a frequency characteristic diagram, and FIG. 7 is a water pressure characteristic diagram. 1...Waterproof case, 2...Dynamic speaker, 3...Diaphragm, 4...Magnet, 5...
Coil, 6... Vibration transmitter, 7... Damper, 8
... Bimorph piezoelectric element, 9 ... Rubber case, 1
0...Rubber case, 11...Oil, 12...Elastic body, 13...Space, 14...Plastic case, 15...Signal cable, 16...Lead wire,
17...Cover.
Claims (1)
５０度以下の弾性体で挾持すると共に、前記バイ
モルフ圧電素子の聴音面側の表面と弾性体との間
に同心円状の空間を形成せしめ、このバイモルフ
圧電素子と弾性体とを耐圧性を有するプラスチツ
クケース中に収容し、更に前記プラスチツクケー
スの表面をゴム製のカバーにより水密状態になる
様に被覆したことを特徴とする水中用受話器。 Both sides of a disc-shaped bimorph piezoelectric element are sandwiched between elastic bodies having a hardness of 50 degrees or less, and a concentric space is formed between the surface of the bimorph piezoelectric element on the listening side and the elastic body, and this bimorph piezoelectric An underwater telephone receiver characterized in that an element and an elastic body are housed in a pressure-resistant plastic case, and the surface of the plastic case is further covered with a rubber cover so as to be watertight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16367887U JPH0514640Y2 (en) | 1987-10-28 | 1987-10-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16367887U JPH0514640Y2 (en) | 1987-10-28 | 1987-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0170488U true JPH0170488U (en) | 1989-05-10 |
| JPH0514640Y2 JPH0514640Y2 (en) | 1993-04-19 |
Family
ID=31448612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16367887U Expired - Lifetime JPH0514640Y2 (en) | 1987-10-28 | 1987-10-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0514640Y2 (en) |
-
1987
- 1987-10-28 JP JP16367887U patent/JPH0514640Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0514640Y2 (en) | 1993-04-19 |
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