JPH01124798U - - Google Patents
Info
- Publication number
- JPH01124798U JPH01124798U JP2084988U JP2084988U JPH01124798U JP H01124798 U JPH01124798 U JP H01124798U JP 2084988 U JP2084988 U JP 2084988U JP 2084988 U JP2084988 U JP 2084988U JP H01124798 U JPH01124798 U JP H01124798U
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- hole
- metal plate
- piezoelectric diaphragm
- 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
- 239000002184 metal Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図は本考案の一実施例に係る電気音響変換
ユニツトの構造をを示す平面図、第２図は第１図
のＡ―Ａ断面図である。
１：カバー、１ａ：孔、２：圧電振動板、３：
金属板、３ａ：段差部、４：プリント基板、４ａ
：孔、５：接続端子、６：スリツト。
FIG. 1 is a plan view showing the structure of an electroacoustic transducer unit according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG. 1: Cover, 1a: Hole, 2: Piezoelectric diaphragm, 3:
Metal plate, 3a: Step portion, 4: Printed circuit board, 4a
: hole, 5: connection terminal, 6: slit.
Claims (1)
一方の面に取付けた圧電振動板と、該圧電振動板
を覆うカバーと、上記プリント基板の他方の面に
設けた金属板とを備えてなる電気音響変換ユニツ
トの構造において、上記プリント基板の孔に対応
する金属板の部分に段差部を設けることにより音
響ダンパ用のスリツトを形成したことを特徴とす
る電気音響変換ユニツトの構造。 An electroacoustic device comprising a printed circuit board having a hole, a piezoelectric diaphragm attached to one surface of the printed circuit board, a cover covering the piezoelectric diaphragm, and a metal plate provided on the other surface of the printed circuit board. 1. A structure of an electroacoustic conversion unit, characterized in that a slit for an acoustic damper is formed by providing a stepped portion in a portion of the metal plate corresponding to the hole in the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2084988U JPH01124798U (en) | 1988-02-19 | 1988-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2084988U JPH01124798U (en) | 1988-02-19 | 1988-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124798U true JPH01124798U (en) | 1989-08-24 |
Family
ID=31237568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2084988U Pending JPH01124798U (en) | 1988-02-19 | 1988-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124798U (en) |
-
1988
- 1988-02-19 JP JP2084988U patent/JPH01124798U/ja active Pending
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