JP2002232991A - Speaker and module component for the speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a direct lead type speaker that suppresses occurrence of jumping rope of lead wires and decreases an interval between a diaphragm and a damper so as to facilitate automatic assembling. SOLUTION: The speaker is characterized in that a terminal 18 of a voice coil 11 and an input terminal 33 of a frame 21 are connected by a flexible lead wire 35 between the diaphragm 19 and the damper 25 and the mid-position of the lead wire 35 is fixed to an outer circumferential part of the damper 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker and a modularized component suitable for assembling the same, and more particularly to a lead wire mounting structure for electrically connecting a voice coil (vibration side) and an input terminal (stationary side). It is about.

[0002]

2. Description of the Related Art Speakers include an indirect lead type and a direct lead type. FIG. 4 shows an indirect lead type speaker, and FIG. 5 shows a direct lead type speaker. In the figure, 11 is a voice coil in which a coil 15 is wound around a cylindrical bobbin 13, 17 is a lead wire of the coil 15, 19 is a diaphragm, 21 is a frame, 23 is a center cap, 25 is a damper, 27 is a plate, 29 Is a magnet, 31 is a center pole yoke, 33 is an input terminal, and 35 is a lead wire connecting the input terminal 33 and the coil lead wire 17.

The indirect lead type speaker shown in FIG.
Roll the coil lead wire 17 over the surface of the diaphragm 19, and
In the above, the coil lead wire 17 and the lead wire 35 are connected. On the other hand, the direct lead type speaker of FIG. 5 has a terminal portion 18 of the voice coil 11 (a portion where the end of the coil lead wire 17 is soldered) between the diaphragm 19 and the damper 25.
(Usually formed of a piece of copper foil adhered to the bobbin 13), and the inner end of the lead wire 35 is connected to the terminal portion 18.

[0004] Since the lead wire 35 is required to have excellent flexibility and bending resistance, a copper foil wire, a braided copper foil wire, a twisted copper foil wire, and an outer periphery of a tensile strength fiber bundle are used. Used is a braided copper or copper alloy wire.

[0005]

In order to assemble the indirect lead type speaker shown in FIG. 4, an eyelet is attached to the diaphragm, one end of a lead wire is inserted into the speaker, and the lead is projected to the surface side of the diaphragm. It is necessary to perform an operation of entanglement of the coil lead wire with the projecting portion of the lead wire and soldering.
Therefore, there is a problem that the assembling work is troublesome and the assembling cannot be automated.

The direct lead type speaker shown in FIG.
Since this point is improved, the inner end of the lead wire may be soldered to the terminal portion of the voice coil, so that there is an advantage that the assemblability is greatly improved and the assembling is easily automated. However, on the other hand, it is necessary to increase the distance between the diaphragm and the damper so that the lead wire does not come into contact with the diaphragm or the damper when the lead wire swings, which is a factor of deteriorating the sound quality of the speaker. In addition, since the length of the lead wire is increased and the amplitude is increased, a jumping rope phenomenon (a phenomenon in which the lead wire is swung like a skipping rope) is likely to occur in the lead wire. There is also a problem of causing a decrease.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to suppress the jumping phenomena of a lead wire, to reduce the distance between a diaphragm and a damper, and to easily assemble a speaker and a module suitable for the speaker. To provide chemical parts.

[0008]

In order to achieve the above object, according to the present invention, a terminal portion of a voice coil and an input terminal on a frame side are connected between a diaphragm and a damper by a flexible lead wire. In the above speaker, an intermediate portion of the lead wire is fixed to an outer peripheral portion of a damper.

A modularized component of the present invention suitable for assembling the above-described speaker is provided with a damper attached to a voice coil, and one end of a flexible lead wire connected to a terminal portion of the voice coil. Is fixed to the outer peripheral portion of the damper.

It is preferable that the modular component of the present invention has a configuration in which a diaphragm is further attached to the voice coil.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an embodiment of a speaker according to the present invention. In FIG. 1, the same parts as those of the speaker of FIG. 5 described above are denoted by the same reference numerals. This speaker has a flexible lead wire 35 connected between the diaphragm 19 and the damper 25 by soldering the inner end of the lead wire 35 to the terminal portion 18 of the voice coil 11 and the outer end of the input terminal 33 attached to the frame 21. Although it is the same as a conventional direct lead type speaker in that it is connected by soldering, the characteristics of this speaker are:
The point is that the intermediate part of the lead wire 35 is fixed to the outer peripheral part of the damper 25. 37 is the fixed part.

In order to fix the intermediate portion of the lead wire 35 to the outer peripheral portion of the damper 25, means such as sewing, pinning, stapling or bonding can be used. Since there is a possibility of peeling off only by bonding, sewing, pinning or stapling is preferable, and it is also preferable to use sewing and pinning or stapling together with bonding.

When the intermediate portion of the lead wire 35 is fixed to the outer peripheral portion of the damper 25 as described above, the run-out of the lead wire 35 is suppressed, so that even when the voice coil 11 vibrates violently, the lead wire 35 does not jump out. Will not wake up. Further, since the deflection of the lead wire 35 is reduced, the diaphragm 19 and the damper 25 can be made closer to each other, and the sound quality can be improved. Further, since the outer peripheral portion of the damper 25 is a portion that hardly vibrates, even if the intermediate portion of the lead wire 35 is fixed to that portion, there is no possibility that the vibration of the voice coil 11 is adversely affected, and the sound quality is reduced. There is no.

FIG. 2 shows an embodiment of a modular component according to the present invention for simplifying the assembly of the speaker as shown in FIG. This modularized component 39 is a voice coil
A damper 25 is attached to the terminal 11 by ordinary means (adhesion or the like), one end of a lead wire 35 is connected to the terminal portion 18 of the voice coil 11 by soldering, and an intermediate portion of the lead wire 35 is fixed to an outer peripheral portion of the damper 25. Things.

Since the damper 25 is generally formed in a concentric waveform, it is preferable that the middle portion of the lead wire 35 be fixed to the outermost peak of the waveform as shown in the figure. Thus, the work of fixing the intermediate portion of the lead wire can be facilitated, the adverse effect on the vibration of the voice coil 11 can be prevented, and the lead wire 35 other than the fixing portion 37 can be prevented from contacting the damper 25.

When such a modularized component is used, the speaker is attached by fixing the outer peripheral edge of the damper 25 to the frame 21, soldering the outer end of the lead wire 35 to the input terminal, and attaching the diaphragm. Since the speaker can be assembled, the speaker assembly can be automated.

FIG. 3 shows another embodiment of the modularized component according to the present invention. This modularized component 41 is added to the voice coil 11 of the modularized component 39 of FIG.
19 is attached. The use of such a modular component 41 makes it easier to assemble the speaker.

[0019]

As described above, according to the present invention, since the intermediate portion of the lead wire is fixed to the outer peripheral portion of the damper, the lead wire does not cause a jump rope phenomenon and the lead wire has a small deflection. Therefore, the diaphragm and the damper can be made closer to each other, and the sound quality can be improved. Further, by using the modularized component of the present invention, in addition to the above effects, the speaker assembly can be simplified, the automation of the speaker assembly can be further promoted, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a speaker according to the present invention.

2 (A) is a sectional view and FIG. 2 (B) is a plan view showing one embodiment of a modularized component for a speaker according to the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of a modularized component for a speaker according to the present invention.

FIG. 4 is a sectional view showing a conventional indirect lead type speaker.

FIG. 5 is a sectional view showing a conventional direct lead type speaker.

[Explanation of symbols]

 11: Voice coil 18: Terminal part 19: Diaphragm 21: Frame 25: Damper 33: Input terminal 35: Lead wire 37: Fixed part 39, 41: Modularized parts

Claims (3)

[Claims] 1. A speaker in which a terminal portion of a voice coil and an input terminal on a frame side are connected by a flexible lead wire between a diaphragm and a damper, wherein an intermediate portion of the lead wire is connected to an outer periphery of the damper. A speaker fixed to the unit. 2. A speaker, wherein a damper is attached to the voice coil, one end of a flexible lead wire is connected to a terminal portion of the voice coil, and an intermediate portion of the lead wire is fixed to an outer peripheral portion of the damper. Modular parts. 3. The modular component for a speaker according to claim 2, wherein a diaphragm is further attached to the voice coil.