JPS619998U

JPS619998U - dynamic microphone

Info

Publication number: JPS619998U
Application number: JP9438184U
Authority: JP
Inventors: 哲雄嶋田
Original assignee: オンキヨー株式会社
Priority date: 1984-06-23
Filing date: 1984-06-23
Publication date: 1986-01-21

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

[Brief explanation of the drawing]

第１図は本考案のダイナミックマイクロホンの構造を示
す図、第２図は同、リング状押え板の構造を示す図、第
３図および第４図は従来のダイナミックマイクロホンの
構造を示す図である。１−・・ヨーク、２・・・マグネント、３・・・プレー
ト、４・・・磁気ギャップ、５・・・振動板、６・・・
ボイスコイル、訃・・空室、９・・・音響抵抗体、１２
・・・リング状押え板、１３・・・爪部、１４・・・係
合凹部。Fig. 1 is a diagram showing the structure of the dynamic microphone of the present invention, Fig. 2 is a diagram showing the structure of the ring-shaped presser plate, and Figs. 3 and 4 are diagrams showing the structure of a conventional dynamic microphone. . 1- Yoke, 2... Magnet, 3... Plate, 4... Magnetic gap, 5... Vibration plate, 6...
Voice coil, dead...vacant room, 9...acoustic resistor, 12
. . . Ring-shaped presser plate, 13 . . . Claw portion, 14 . . . Engagement recess.

Claims

[Scope of utility model registration request]

A cylindrical magnet 2 is placed at the center of the pot-shaped yoke 1,
A ring-shaped plate 3 is arranged concentrically with the magnet 2 to form a magnetic gap 4, a voice coil 6 is positioned within the magnetic gap 4, and the peripheral part of the diaphragm 5 is fixed to the plate 3. In a structure in which an acoustic resistor 9 is arranged in a cavity 8 formed by the magnet 2 and the yoke 1, a plurality of claws 13 are provided on the outer periphery (and/or the inner periphery) of the ring-shaped presser plate 12. , by engaging the claw portion 13 with an engagement recess 14 provided at a predetermined position on the inner wall of the yoke 1 (and/or the outer wall of the magnet 2),
A dynamic microphone characterized in that the acoustic resistor 9 is held under pressure.