JPS59111397U - Amplitude type piezoelectric electromagnetic acoustic transducer - Google Patents

Amplitude type piezoelectric electromagnetic acoustic transducer

Info

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
Application number
JP456683U
Other languages
Japanese (ja)
Other versions
JPH0323758Y2 (en
Inventor
澤藤 正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP456683U priority Critical patent/JPS59111397U/en
Publication of JPS59111397U publication Critical patent/JPS59111397U/en
Application granted granted Critical
Publication of JPH0323758Y2 publication Critical patent/JPH0323758Y2/ja
Granted legal-status Critical Current

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

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外周にコイルが巻回されたコイルボビンと、該コイルボ
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.
JP456683U 1983-01-17 1983-01-17 Amplitude type piezoelectric electromagnetic acoustic transducer Granted JPS59111397U (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012015765A (en) * 2010-06-30 2012-01-19 Nec Corp Oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS59111397U (en) Amplitude type piezoelectric electromagnetic acoustic transducer
JPS59106296U (en) Amplitude type electromagnetic acoustic transducer
JPS5948197U (en) speaker
JPS5841078U (en) Reciprocating drive device
JPS5984996U (en) composite speaker
JPS58135037U (en) electromechanical converter
JPS60101711U (en) Electromagnetic actuator
JPS6392495U (en)
JPS6118697U (en) Planar drive speaker
JPS60153508U (en) monostable solenoid
JPS58141691U (en) Electrodynamic speaker magnetic circuit
JPS6079282U (en) electromagnetic drive device
JPS5822081U (en) DC machine field device
JPS593698U (en) electromagnetic speaker
JPS6016197U (en) acoustic transducer
JPS5876294U (en) Low leakage magnetic flux speaker
JPS5914132U (en) Optical pickup drive device
JPS58144994U (en) electroacoustic transducer
JPS59152951U (en) rotating electric machine
JPS59164216U (en) Release type actuator
JPS5976193U (en) Magnetic circuit for speakers
JPS6114381U (en) Shock detection device
JPS5811399U (en) electromagnetic sounding body
JPS6138737U (en) switch
JPS58152092U (en) speaker device