JPH0332896U - - Google Patents
Info
- Publication number
- JPH0332896U JPH0332896U JP9049389U JP9049389U JPH0332896U JP H0332896 U JPH0332896 U JP H0332896U JP 9049389 U JP9049389 U JP 9049389U JP 9049389 U JP9049389 U JP 9049389U JP H0332896 U JPH0332896 U JP H0332896U
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- piezoelectric
- piezoelectric diaphragm
- electrode
- circuit board
- 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
- 239000004020 conductor Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図は、この考案の一実施例に係る圧電イヤ
ホンを示す断面図である。第２図は、第１図中の
圧電振動板を示す平面図である。第３図は、従来
の圧電イヤホンに用いられている圧電振動板を示
すものであり、Ａはその平面図、Ｂはその側面図
である。
４……圧電セラミツク素子、６……圧電セラミ
ツク、８，１０……電極、１２……金属板、２０
……圧電振動板、２２……絶縁体、２４……導電
体、３０……ケース、３６……異方性導電ゴムリ
ング、３８……プリント基板、４０……接続導体
。
FIG. 1 is a sectional view showing a piezoelectric earphone according to an embodiment of this invention. FIG. 2 is a plan view showing the piezoelectric diaphragm in FIG. 1. FIG. 3 shows a piezoelectric diaphragm used in a conventional piezoelectric earphone, with A being a plan view thereof and B being a side view thereof. 4... Piezoelectric ceramic element, 6... Piezoelectric ceramic, 8, 10... Electrode, 12... Metal plate, 20
... Piezoelectric diaphragm, 22 ... Insulator, 24 ... Conductor, 30 ... Case, 36 ... Anisotropic conductive rubber ring, 38 ... Printed circuit board, 40 ... Connection conductor.
Claims (1)
電セラミツク素子表面の電極と金属板にまたがる
ように絶縁体を設け、かつ同電極上から金属板上
の絶縁体上にかけて電極引出し用の導電体を設け
た構造の圧電振動板をケース内に嵌め込んでその
周縁部を支持し、更に同ケース内であつて圧電振
動板の後面側に、少なくとも前面側端部に一組の
接続導体を有するプリント基板を嵌め込み、かつ
前記圧電振動板の周縁部とこのプリント基板との
間に異方性導電ゴムリングを挟み、そしてこの異
方性導電ゴムリングを介してプリント基板の各接
続導体と圧電振動板の金属板およびその上の導電
体とをそれぞれ電気的に接続していることを特徴
とする圧電イヤホン。 A piezoelectric ceramic element is bonded to a metal plate, an insulator is provided so as to span the electrode on the surface of the piezoelectric ceramic element and the metal plate, and a conductor for leading out the electrode is provided from above the electrode to the insulator on the metal plate. A printed circuit board that supports a peripheral edge of the piezoelectric diaphragm by fitting it into a case, and further has a set of connecting conductors on the rear side of the piezoelectric diaphragm and at least on the front edge of the piezoelectric diaphragm in the same case. An anisotropic conductive rubber ring is inserted between the peripheral edge of the piezoelectric diaphragm and this printed circuit board, and each connecting conductor of the printed circuit board and the piezoelectric diaphragm are connected via this anisotropic conductive rubber ring. A piezoelectric earphone characterized by electrically connecting a metal plate and a conductor on the metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9049389U JPH0332896U (en) | 1989-07-31 | 1989-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9049389U JPH0332896U (en) | 1989-07-31 | 1989-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332896U true JPH0332896U (en) | 1991-03-29 |
Family
ID=31640010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9049389U Pending JPH0332896U (en) | 1989-07-31 | 1989-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332896U (en) |
-
1989
- 1989-07-31 JP JP9049389U patent/JPH0332896U/ja active Pending
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