JPS5866790U

JPS5866790U - speaker

Info

Publication number: JPS5866790U
Application number: JP16066281U
Authority: JP
Inventors: 準一田中; 茂森田
Original assignee: 三菱電機株式会社
Priority date: 1981-10-28
Filing date: 1981-10-28
Publication date: 1983-05-06

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 drawings]

第１図は従来のコーン形スピーカを示す断面図、第２図
はコーン形振動板の断面図、第３図ａ、　　ｂ。Ｃは従来の平板形子ピーカをそれぞれ示す断面図、第４
図は本考案の一実施例に係る平板形スピーカ、　を示す
断面図、第５図は第４図に示された本考案の一実施例に
係る平板形スピーカ、従来の紙コーンを用いたコーン形
スピーカ、および第３図Ｃに示された従来の平板形スピ
ーカにおけるそれぞれの音圧−周波数特性を示すグラフ
である。１０・・・平板形スピーカ、１１・・・リング平板、１
２・・・ボイスコイル、１３・・・エツジ、１４・・・
スバ゛イダ、１５・・・磁気面路、１６・・・リング、
１７・・・コーン振動板、１８・・・円形平板、１９・
・・平板振動板、２０・・・開口。なお、図中同一符号
は同一部分又は相当部分を示す。FIG. 1 is a sectional view showing a conventional cone-shaped speaker, FIG. 2 is a sectional view of a cone-shaped diaphragm, and FIGS. 3a and 3b. C is a cross-sectional view showing a conventional flat plate element peaker;
The figure is a sectional view showing a flat speaker according to an embodiment of the present invention, and FIG. 5 is a sectional view showing a flat speaker according to an embodiment of the present invention shown in FIG. 4, and a cone using a conventional paper cone. 3C is a graph showing the sound pressure-frequency characteristics of the flat speaker and the conventional flat speaker shown in FIG. 3C. 10... Flat plate speaker, 11... Ring flat plate, 1
2...Voice coil, 13...Edge, 14...
Subaider, 15... Magnetic surface path, 16... Ring,
17... Cone diaphragm, 18... Circular flat plate, 19.
...Flat plate diaphragm, 20...opening. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) A ring-shaped flat plate with a multilayer structure, a T-shaped ring joined to the entire inner diameter end surface of the ring-shaped flat plate, and a T-shaped ring attached to the inner diameter side hollow part of the ring-shaped flat plate, the outer end of which is attached to the inner diameter side of the ring-shaped flat plate. It consists of a circular flat plate with a multilayer structure joined to the inner diameter part, and a cone-shaped diaphragm whose outer end is joined to the lower part of the ring, and the surface of the ring-shaped flat plate is formed by the ring and the circular flat plate. A flat plate diaphragm forming one continuous plane is constructed, and the position of the ring is the position of the nodal circle of the axisymmetric primary division vibration, and the cone-shaped diaphragm is used to perform the axisymmetric primary division vibration of the flat plate diaphragm. A speaker characterized by driving a nodal circle.

(2) Utility Model Registration The speaker according to claim 1, wherein the ring-shaped flat plate and the circular flat plate constituting the flat diaphragm are made of a three-layer honeycomb structure.