JPS59111397U - Amplitude type piezoelectric electromagnetic acoustic transducer - Google Patents
Amplitude type piezoelectric electromagnetic acoustic transducerInfo
- Publication number
- JPS59111397U JPS59111397U JP456683U JP456683U JPS59111397U JP S59111397 U JPS59111397 U JP S59111397U JP 456683 U JP456683 U JP 456683U JP 456683 U JP456683 U JP 456683U JP S59111397 U JPS59111397 U JP S59111397U
- Authority
- JP
- Japan
- Prior art keywords
- acoustic transducer
- electromagnetic acoustic
- type piezoelectric
- amplitude type
- coil bobbin
- 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)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の電磁音響変換器の構成と原理を説明する
ために例示したイヤホンの縦断面図、第２．３図は、夫
々本考案の振幅型圧電電磁音響変換器を適用したイヤホ
ンの一実施例を示す縦断面図及びそのコイルの磁化極性
を説明するための回路図、第４図は上記イヤホンの一変
形例を示す縦断面図である。
１１・・・イヤホン、１２・・・ケース、１３・・・ホ
ルダ、１４・・・コイルボビン、１５．１６・・・コイ
ル、１７゜１８・・・固定永久磁石、１９・・・可動永
久磁石、２０・・・圧電振動板１．２０ａ・・・単板、
２０ｂ・・・電極、２１・・・磁性油、２２・・・凹凸
板。Fig. 1 is a vertical cross-sectional view of an earphone illustrated to explain the configuration and principle of a conventional electromagnetic acoustic transducer, and Figs. 2 and 3 show earphones to which the amplitude-type piezoelectric electromagnetic acoustic transducer of the present invention is applied. FIG. 4 is a vertical cross-sectional view showing one embodiment and a circuit diagram for explaining the magnetization polarity of the coil. FIG. 4 is a vertical cross-sectional view showing a modified example of the earphone. 11...Earphone, 12...Case, 13...Holder, 14...Coil bobbin, 15.16...Coil, 17°18...Fixed permanent magnet, 19...Movable permanent magnet, 20...Piezoelectric diaphragm 1.20a...Single plate,
20b... Electrode, 21... Magnetic oil, 22... Concave and convex plate.
Claims (1)
ビンの両端開口部に夫々固着され、互いに異極性に磁化
された一対の固定永久磁石と、該一対の固定永久磁石に
対し対向面が磁気的に反発する極性に磁化され、前記コ
イルボビンの内周を軸方向に変位可能に設けたリング状
ｐ可動永久磁石と、該可動永久磁石をエツジとする板状
の圧電物質の両面に電極を設けた圧電振動板とかう構成
してなる振幅型圧電電磁音響変換器。A coil bobbin having a coil wound around its outer periphery, a pair of fixed permanent magnets that are fixed to openings at both ends of the coil bobbin and magnetized with different polarities, and a surface facing the pair of fixed permanent magnets is magnetically A ring-shaped p movable permanent magnet magnetized with repulsive polarity and displaceable in the axial direction on the inner periphery of the coil bobbin, and a piezoelectric material having electrodes on both sides of a plate-shaped piezoelectric material with the movable permanent magnet as an edge. An amplitude type piezoelectric electromagnetic acoustic transducer consisting of a diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP456683U JPS59111397U (en) | 1983-01-17 | 1983-01-17 | Amplitude type piezoelectric electromagnetic acoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP456683U JPS59111397U (en) | 1983-01-17 | 1983-01-17 | Amplitude type piezoelectric electromagnetic acoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59111397U true JPS59111397U (en) | 1984-07-27 |
| JPH0323758Y2 JPH0323758Y2 (en) | 1991-05-23 |
Family
ID=30136163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP456683U Granted JPS59111397U (en) | 1983-01-17 | 1983-01-17 | Amplitude type piezoelectric electromagnetic acoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59111397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012015765A (en) * | 2010-06-30 | 2012-01-19 | Nec Corp | Oscillator |
-
1983
- 1983-01-17 JP JP456683U patent/JPS59111397U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012015765A (en) * | 2010-06-30 | 2012-01-19 | Nec Corp | Oscillator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0323758Y2 (en) | 1991-05-23 |
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