JPH0373099U

JPH0373099U -

Info

Publication number: JPH0373099U
Application number: JP13348689U
Authority: JP
Priority date: 1989-11-16
Filing date: 1989-11-16
Publication date: 1991-07-23

Description

[Brief explanation of drawings]

第１図、第２図及び第３図はこの考案の実施例
の電磁型変換器の構成部品である一対の磁極体を
示す斜視図、同じく構成部分である電磁振動片及
び巻線コイルを示す各斜視図、第４図は第１図〜
第３図の各構成部品を組み立てた構成を示す斜視
図、第５図、第６図及び第７図はこの考案の実施
例の電磁型変換器の構成部品である振動板を示す
斜視図、同じく構成部品である外部容器及び上蓋
を示す各斜視図である。図において、１ａ，１ｂ……磁極体、２……磁
極板、３……凸極、４……開口部、５……凸極面
、６……磁石片、７……電磁振動片、８……支持
部、８ａ……切込み部、９……振動片、１０ａ，
１０ｂ……磁路片、１１……細片、１２……巻線
コイル、１３……貫通孔、１４……磁界間隙、１
５ａ，１５ｂ……連結桿、１６……小間隙、１７
……振動板、１８，１９……細溝、２０……外枠
、２１……駆動点、２２……外部容器、２３……
外部端子板、２４……上蓋、２５……音響開口、
２６……ねじ孔、２７……皿孔である。なお、図
中、同一符号は同一、又は相当部分を示す。 Figures 1, 2, and 3 are perspective views showing a pair of magnetic pole bodies that are components of an electromagnetic transducer according to an embodiment of this invention, and also show an electromagnetic vibrating piece and a wire-wound coil that are also components. Each perspective view, Figure 4 is Figure 1~
FIG. 3 is a perspective view showing the assembled configuration of each component; FIGS. 5, 6, and 7 are perspective views showing a diaphragm that is a component of the electromagnetic transducer of the embodiment of this invention; It is each perspective view which shows the outer container and upper lid which are the same component parts. In the figure, 1a, 1b... magnetic pole body, 2... magnetic pole plate, 3... convex pole, 4... opening, 5... convex pole surface, 6... magnet piece, 7... electromagnetic vibrating piece, 8 ... Support part, 8a ... Notch part, 9 ... Vibration piece, 10a,
10b...Magnetic path piece, 11...Strip, 12...Wound coil, 13...Through hole, 14...Magnetic field gap, 1
5a, 15b...Connecting rod, 16...Small gap, 17
... Vibration plate, 18, 19 ... Thin groove, 20 ... Outer frame, 21 ... Driving point, 22 ... External container, 23 ...
External terminal board, 24...Top lid, 25...Acoustic opening,
26...screw hole, 27...countersink hole. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A magnet piece is fixed to the center of the inner surface of a U-shaped magnetic plate, and a pair of magnetic pole bodies with convex poles at both ends of the magnetic plate, two magnetic path pieces from the support at the rear end, and one central A magnetic circuit is provided with an E-shaped electromagnetic vibrating piece from which a vibrating piece extends, a signal coil is passed through the vibrating piece, and the two magnetic path pieces are clamped and fixed by the convex poles of the pair of magnetic pole bodies. An electromagnetic transducer characterized in that the tip of the vibrating piece is held at the center of a magnetic field gap formed by the opposing magnet pieces.