JPH1155792A - Conductive damper for speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent cotton yarn lines from being spuriously disconnected and to realize a continuous operation with large input by installing the cotton yarn lines to a damper base material having concentric disk-like corrugations in the radius directions of the corrugations along the corrugations. SOLUTION: In a conductive damper 1, the cotton yarn lines 3 are installed on the damper base material constituted of cotton cloth and the like in a waveform viewed from a plane against the radius directions for the whole corrugations 2a along the conccentric corrugations 2a by sewing. The plural cotton yarn lines are woven in a flat net form for the cotton yarn lines 3. The conductive damper 1 is used for a speaker unit and a voice coil 4 is fixed to a vibration board and the conductive damper 1 is fixed to the frame. The effective lengths of the cotton yarn lines become longer compared to a conventional case and the lines 3 are not stretched at the time of large amplitude by large input to the speaker anti stress on the cotton yarn lines 3 reduces. Thus, pseudo disconnection is difficult to occur and therefore the continuous operation with large input compared with the conventional one is realized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a conductive damper for a speaker.

[0002]

2. Description of the Related Art In a conventional loudspeaker, as shown in FIG. 3, a tinsel wire 3 is linearly formed on a damper substrate 2 made of cotton cloth or the like along a concentric corrugation 2a (ie, a corrugation 2a). (In the radial direction). The coil bobbin 4a of the voice coil 4 has a copper foil portion 4b connected to a lead wire of a coil portion (not shown) adhered thereto. The copper foil portion 4b and the inner end 3a of the tinsel wire 3 are connected to each other. Conducted by soldering. The outer end 3b of the tinsel wire 3 is connected to an input terminal (not shown) of the speaker.

A conductive damper 1 shown in FIG. 3 is used for a speaker unit 10 as shown in FIG. 4, for example, a voice coil 4 is coupled to a diaphragm 5, and the conductive damper 1 is fixed to a frame.

[0004]

However, when the loudspeaker is operated for a long time with a large input, the conductive damper 1 having such a structure can be bent or bent by the amplitude to reduce the tinsel wire 3.
Is broken (a part of the kinshi wire composed of a plurality of conductors is broken, and although the wire is not completely broken due to the fail safe of the kinshi wire, it makes a popping sound).
Operation may stop.

An object of the present invention is to provide a conductive damper for a loudspeaker having a novel structure that solves the above-mentioned conventional problems.

[0006]

According to a first aspect of the present invention, there is provided a conductive damper for a loudspeaker, wherein a tinsel wire is formed on a damper substrate having concentric corrugations along the corrugations and in a radial direction of the corrugations. Is mounted in a plane wave shape.

According to a second aspect of the present invention, the conductive damper for the speaker according to the second aspect is the conductive damper according to the first aspect, wherein the tinsel wire extends radially over the entire concentric corrugation of the damper substrate. It is characterized by being mounted in a plane wave shape.

According to a third aspect of the present invention, the conductive damper for a speaker according to the third aspect is the conductive damper according to the first aspect, wherein the tinsel wire is formed on a part of the concentric corrugation of the damper base in the radial direction. And is mounted linearly in the radial direction on the remaining portion.

According to a fourth aspect of the present invention, there is provided a conductive damper for a speaker according to the first, second, or third aspect, wherein the tinsel wire is formed by braiding a plurality of tinsel wires in a flat net shape. It is characterized by the Ami Kinshi Line.

[0010]

FIG. 1 is a plan view showing an embodiment of a conductive damper of a speaker according to the present invention. In FIG. 1, a conductive damper 1 has a damper substrate 2 made of a cotton cloth or the like, and a tinsel wire 3 is corrugated along a concentric corrugation 2a over the entire corrugation 2a when viewed from a plane in the radial direction. It is attached by sewing. The kinshi wire 3 is formed by braiding a plurality of kinshi wires in a flat net shape. Other structures are the same as those of the conventional example shown in FIGS.

As a result, the effective length of the tinsel wire 3 is longer than that of the conventional one, and it is difficult to be squeezed when a large amplitude is generated by a large input to the speaker. As a result, continuous operation with a larger input than conventional products becomes possible.

[0012]

FIG. 2 is a plan view showing another embodiment of the conductive damper of the speaker according to the present invention. In FIG. 2, the tinsel wire 3 penetrates a portion of the concentric corrugation 2 a of the damper substrate 2, for example, only the innermost portion where the stress is most stressed, in a plane wave shape in the radial direction, and the remaining portion thereof has It is installed by sewing or the like linearly in the radial direction. The kinshi wire 3 is formed by braiding a plurality of kinshi wires in a flat net shape. Other structures are the same as those of the conventional example shown in FIGS.

As a result, the tinsel wire 3 is mounted in a plane wave shape only at the inner peripheral portion where the stress is most applied, so that it is difficult to be squeezed at the time of a large amplitude due to a large input to the speaker, and the stress is reduced, so that it is difficult for the false disconnection. Also, the effective length does not become longer than that of FIG.

[0014]

According to the conductive damper of the loudspeaker according to the present invention, the kinshi wire is less likely to be broken than the conventional product,
Continuous operation with large input is possible.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a conductive damper of a speaker according to the present invention.

FIG. 2 is a plan view showing another embodiment of the conductive damper of the speaker according to the present invention.

FIG. 3 shows an example of a conventional conductive damper of a speaker;
(A) is a perspective view, (B) is a plan view.

FIG. 4 is a cross-sectional view of a speaker unit using a conductive damper.

[Explanation of symbols]

 Reference Signs List 1 conductive damper 2 damper base material 2a corrugation 3 tinsel wire 3a inner end 3b outer end 4 voice coil 4a coil bobbin 4b copper foil

Claims (4)

[Claims] 1. A conductive damper for a loudspeaker, wherein a tinsel wire is mounted on a damper base material having concentric corrugations in a plane wave shape along the corrugations and in the radial direction of the corrugations. 2. The conductive damper for a speaker according to claim 1, wherein the tinsel wire is mounted in a plane wave shape in the radial direction over the entire concentric corrugation of the damper base material. 3. The conductive damper according to claim 1, wherein the tinsel wire is mounted on a part of the concentric corrugation of the damper base material in a plane wave shape with respect to its radial direction, and on the remaining part with respect to its radial direction. A conductive damper for a speaker, which is mounted linearly. 4. The conductive damper according to claim 1, wherein the tinsel wire is a flat net tinsel wire obtained by braiding a plurality of tinsel wires into a flat net shape.