JPH0328633Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a speaker in which lead wires and the like are held properly.

Conventionally, the voice coil lead wire holding structure is generally as shown in FIG.
After the tinsel wire 26 stretched through the wire 4 and the terminal wire 23 are soldered, they are fixed to the cone paper 24 with an adhesive 27 or the like. In addition, in the figure, 21
indicates a bobbin, and 28 indicates a frame.

However, with the conventional lead wire holding structure described above, the manufacturing process is complicated and the cost is high, and it is necessary to perform processing such as perforation and fixing on the cone paper, which has a significant impact on sound quality. Because of this, there was a risk that it would cause deterioration in sound quality.

We have separately proposed a speaker in which the vibration system members such as the coil bobbin or the diaphragm mounting part formed on the top of the coil bobbin are molded from plastic material, but in such a speaker, the advantage of molding with plastic should be utilized to the fullest. Therefore, the lead wire holding structure can also be made simple and appropriate.

The purpose of the present invention is to not only properly and easily hold the lead wires of a speaker in which the vibration system members such as the coil bobbin or the coil bobbin-shaped diaphragm mounting part are molded in plastic, but also to improve the manufacturing process. It is an object of the present invention to provide a speaker capable of reducing noise and sound quality deterioration.

The speaker of the present invention includes a coil bobbin, a diaphragm mounting part formed on the upper part of the coil bobbin, and a damper part extending radially from the diaphragm mounting part in the outer circumferential direction and having a frame mounting piece at its tip. ,
In order to connect and hold the end of the voice coil and the inner end of the tinsel wire, a pair of holder parts protrude outward from the diaphragm mounting part so as to be located between the damper parts, and are made of synthetic resin. A terminal fitting for a terminal for connecting the outer end side of the tinsel wire is insert-molded in the mounting piece at the tip of the damper part located between the pair of holder parts.

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

A is a vibration system member, which includes a coil bobbin 1,
A diaphragm mounting part 2 formed on the upper part of the coil bobbin 1, and a mounting piece 12 extending from the diaphragm mounting part 2 in the outer circumferential direction and attached to the frame 13 at the tip.
The damper portion 12 is integrally molded from a synthetic resin material. Reference numeral 3 denotes a pair of yarder portions for connecting and holding the end 9 of the voice coil 8 as the lead wire 4 and the inner end side of the tinsel wire 7, and is located between the damper portions 12, 12. One side edge 2 of the diaphragm mounting part 2
An eyelet 6 is attached to the attachment hole 5 formed in the holder part 3, and the tinsel wire 7 and the terminal 9 of the voice coil 8 are soldered thereon 10.
It is designed to be held.

As the lead wire holding means, for example, a metal holding piece may be insert molded into the holder portion 3 and held there. A groove 1 for burying the terminal 9 of the voice coil is provided on the side surface of the coil bombin 1 and the diaphragm mounting portion 2.
1 is provided.

A square plate-shaped mounting piece 12a is also formed at the outer end of the damper member 14 located between the pair of holder parts 3, 3, and a terminal fitting 15 for the terminal is insert-molded into this. The outer end of the tinsel wire 7 is connected to the terminal fitting 15.

As mentioned above, there is no need to process the cone paper to hold the lead wires when assembling the speaker, and it is also useful for assembling foam-filled flat diaphragms, and the sound quality is not as high as that of conventional examples. There is no risk of causing deterioration. Moreover, wiring becomes easy and productivity can be improved.

According to the speaker according to the present invention, there is provided a coil bobbin, a diaphragm mounting part formed on the upper part of the coil bobbin, and a damper extending radially from the diaphragm mounting part in the outer circumferential direction and having a frame mounting piece at its tip. and a pair of holder parts protruding outward from the diaphragm mounting part so as to be located between the damper parts in order to connect and hold the end of the voice coil and the inner end of the tinsel wire. Since it is integrally molded from a synthetic resin material, the end of the voice coil and the inner end of the tinsel wire can be connected and securely held in the holder part, and the lead wire can be processed without any processing on the cone paper. Therefore, there is no risk of deterioration in sound quality due to lead wire processing.

In addition, the outer end of the tinsel wire is connected to a terminal fitting that is insert-molded on the mounting piece at the tip of the damper part located between the damper parts, so the above-mentioned method is used in the voice coil winding process. By connecting and holding the end of the voice coil and the inner end of the tinsel wire to the damper part, and connecting the outer end of the tinsel wire to the terminal fitting, the wiring process related to the lead wire in the assembly process can be simplified. This makes it possible to improve productivity and reduce costs by simplifying the wiring process and assembly process.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing a conventional lead wire holding structure, FIGS. 2 and 3 show an embodiment of the speaker according to the present invention, and FIG. Figure 3 is an enlarged sectional view of the main part. 1...Coil bobbin, 2...Diaphragm mounting part, 3
...Holder part, 4... Entire lead wire, 5... Mounting hole, 6... Eyelet, 7... Tinsel wire, 8... Voice coil, 9... Terminal, 10... Soldering, 1
2... Damper part, 12a... Mounting piece, 13...
Frame, 14...damper part between holder parts,
15...Terminal fitting.

Claims (1)

[Scope of utility model registration request] A coil bobbin 1, a diaphragm mounting part 2 formed on the upper part of the coil bobbin 1, and a frame 13 extending radially from the diaphragm mounting part 2 in the outer circumferential direction.
In order to connect and hold the damper part 12 having the mounting piece 12a to the terminal 9 of the voice coil 8 and the inner end side of the tinsel wire 7, an external part from the diaphragm mounting part 2 is located between the damper parts. A pair of holder parts 3 protruding in the direction are integrally molded from a synthetic resin material, and the mounting piece 12a at the tip of the damper part 14 is located between the pair of holder parts 3, 3.
A speaker characterized in that a terminal fitting 15 for a terminal for connecting the outer end side of the tinsel wire 7 is insert-molded in the speaker.