JPH0361797U

JPH0361797U -

Info

Publication number: JPH0361797U
Application number: JP12369089U
Authority: JP
Priority date: 1989-10-23
Filing date: 1989-10-23
Publication date: 1991-06-17

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の第１実施例で、
第１図は動電型スピーカの断面図、第２図は衝撃
防止材を変えた動電型スピーカの断面図、第３図
は自動車のドアーに取付けた動電型スピーカの断
面図、第４図は複合型の動電型スピーカの断面図
。第５図ないし第１１図は本考案の第２実施例で
、第５図は波形ダンパーと衝撃防止材との要部断
面図、第６図は第５図の変形要部断面図、第７図
は台形ダンパーと衝撃防止材との要部断面図、第
８図は第７図の変形要部断面図、第９図は第５図
のダンパーを用いた動電型スピーカの断面図、第
１０図は自動車のドアーに取付けた第９図の動電
型スピーカの断面図、第１１図は第９図の動電型
スピーカの複合型。第１２図および第１３図は従
来例で、第１２図は従来の動電型スピーカの断面
図、第１３図は同作動中の断面図である。１，１Ａ，１２……動電型スピーカ、２……ヨ
ーク、３……永久磁石、４……プレート、５……
磁気回路部、６……フレーム、８……振動板、９
……ボイスコイル、１０，１０Ａ……ダンパー、
１１，１８，１８Ａ，１９，１９Ａ……衝撃防止
材。 1 to 4 show the first embodiment of the present invention,
Figure 1 is a cross-sectional view of an electrodynamic speaker, Figure 2 is a cross-sectional view of an electrodynamic speaker with different impact prevention material, Figure 3 is a cross-sectional view of an electrodynamic speaker attached to a car door, and Figure 4 is a cross-sectional view of an electrodynamic speaker installed on a car door. The figure is a cross-sectional view of a composite electrodynamic speaker. 5 to 11 show a second embodiment of the present invention, in which FIG. 5 is a cross-sectional view of a main part of a corrugated damper and an impact prevention material, FIG. 6 is a cross-sectional view of a modified main part of FIG. 5, and FIG. The figure is a sectional view of the main part of the trapezoidal damper and the impact prevention material, FIG. 8 is a sectional view of the main part modified from FIG. Fig. 10 is a cross-sectional view of the electrodynamic speaker shown in Fig. 9 attached to the door of a car, and Fig. 11 is a composite type of the electrodynamic speaker shown in Fig. 9. FIGS. 12 and 13 show conventional examples, with FIG. 12 being a cross-sectional view of the conventional electrodynamic speaker, and FIG. 13 being a cross-sectional view of the same during operation. 1, 1A, 12... Electrodynamic speaker, 2... Yoke, 3... Permanent magnet, 4... Plate, 5...
Magnetic circuit section, 6...Frame, 8...Diaphragm, 9
...Voice coil, 10,10A...Damper,
11, 18, 18A, 19, 19A...Impact prevention material.

Claims

[Claims for Utility Model Registration] (1) A diaphragm, a voice coil attached to the diaphragm, a plate and a yoke made of soft magnetic material, and a magnetic circuit formed between the plate and the yoke. In an electrodynamic speaker composed of a permanent magnet, a damper that supports the center of the diaphragm, a frame that supports the diaphragm, etc., on the frame that supports the diaphragm, a part that corresponds to the damper is placed on the frame that supports the diaphragm. An electrodynamic speaker characterized by having a shock-preventing material such as urethane rubber provided at the position. (2) A diaphragm, a voice coil attached to the diaphragm, a plate and a yoke made of a soft magnetic material, a permanent magnet provided between the plate and the yoke and forming a magnetic circuit section, and the diaphragm. In an electrodynamic speaker composed of a damper that supports a center portion and a frame that supports a diaphragm, a shock-preventing material such as urethane rubber having a corrugated surface corresponding to the shape of the damper is provided on the lower surface of the damper. An electrodynamic speaker characterized by: