JPS63136500U

JPS63136500U -

Info

Publication number: JPS63136500U
Application number: JP2727487U
Authority: JP
Priority date: 1987-02-27
Filing date: 1987-02-27
Publication date: 1988-09-07

Description

[Brief explanation of the drawing]

第１図乃至第６図は本考案に係る球状スピーカ
の実施例を示し、第１図は内磁型磁気回路による
球状スピーカを示す断面図、第２図はボイスコイ
ルと外部信号ラインとの接続形態を示す拡大断面
図、第３図は位置出し用のガイドリングとポール
ピースとの関係を示す平面図、第４図Ａ乃至Ｄは
組立工程を示す断面図、第５図は音響インテンシ
テイーを示す図、第６図は磁気回路を外磁型とし
た場合の例を示す断面図である。第７図は従来の
球状スピーカを示す断面図である。１：ドーム型振動板、２：トツププレート、３
：ヨーク、４：マグネツト、５：ポールピース、
５Ａ：上ピース、５Ｂ：下ピース、７：ガイドリ
ング、９：端子部材、１１：コイルボビン、１２
：ボイスコイル、１３：ダンパ。 1 to 6 show examples of the spherical speaker according to the present invention, FIG. 1 is a sectional view showing the spherical speaker with an internal magnetic circuit, and FIG. 2 is a connection between the voice coil and an external signal line. FIG. 3 is a plan view showing the relationship between the guide ring for positioning and the pole piece, FIG. 4 A to D are sectional views showing the assembly process, and FIG. 5 shows the acoustic intensity. The figure shown in FIG. 6 is a sectional view showing an example in which the magnetic circuit is of an external magnetic type. FIG. 7 is a sectional view showing a conventional spherical speaker. 1: Dome-shaped diaphragm, 2: Top plate, 3
: Yoke, 4: Magnet, 5: Pole piece,
5A: Upper piece, 5B: Lower piece, 7: Guide ring, 9: Terminal member, 11: Coil bobbin, 12
:Voice coil, 13:Damper.

Claims

[Claims for Utility Model Registration] 1. A dome-shaped diaphragm is provided, and the outer surface of the top plate is formed into a curvature surface that forms part of a spherical surface, and the outer surface of the yoke or frame is similar to that of the top plate. A spherical speaker characterized by having a continuous spherical surface on its outer surface and having an overall shape that is substantially spherical. 2. The spherical speaker according to claim 1, wherein the damper is provided on the inner circumferential side of the dome-shaped diaphragm and the vibration system is supported on the pole side. 3. The magnetic circuit is an internal magnetic type, the pole piece is divided into an upper piece and a lower piece, and the inner circumference of the damper provided on the inner circumference side of the dome-shaped diaphragm is fixed to the upper piece. A spherical speaker according to claim 1 of the utility model registration claim. 4. The magnetic circuit is of the internal magnetic type, and a positioning guide ring made of a non-magnetic material is arranged to cover the magnet, and the ends of the guide ring fit into the fitting grooves formed in the yoke and the pole piece, respectively. A spherical speaker according to claim 1, which is fitted into a spherical speaker. 5 The magnetic circuit is of the internal magnetic type, and a non-magnetic and insulating guide ring for positioning is arranged to cover the magnet, and the terminal member arranged on the guide ring is on the bottom side of the spherical body. A spherical speaker according to claim 1 of the utility model registration, characterized in that the spherical speaker is led out from a hole opening into the spherical speaker.