JP3191485B2 - Terminal for speaker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker terminal for connecting a voice coil lead wire of a speaker and relaying connection to an external device.

[0002]

2. Description of the Related Art In recent years, a loudspeaker terminal is a connection part having an important role of supplying an electric output of a sound reproducing apparatus to a loudspeaker. Is desired. In addition, as a social demand, global-scale environmental protection is called for, and effective utilization of resources is desired.

Hereinafter, a conventional speaker terminal will be described with reference to the drawings. FIG. 2 (a), (b), (c)
2 shows a conventional speaker terminal, and FIG. 2A shows a completed speaker terminal. FIG.
(B) shows an insulating substrate 11 formed of a vulcanized fiber plate or the like. A central portion of the insulating substrate 11 has a mounting hole 12 for coupling to a frame, and square holes 13a provided on both sides of the mounting hole 12. 13b are both opened by press molding. FIG. 2C shows the insulating substrate 1.
1, a fitting portion 15 into which a flat connection terminal for wiring from the amplifier side is inserted, and a caulking protrusion 16 having a through hole 17. Square holes 13 a, 13 b of the insulating substrate 11. The crimping protrusion 16 of the terminal 14 is inserted into the terminal 14 and is crimped and assembled.

[0004] The conventional speaker terminal constructed as described above is connected to a speaker frame (not shown) in the mounting hole 12 through an aluminum rivet or the like.
Two gold wires (not shown) drawn from the voice coil of the speaker are inserted into the through holes 17 of the terminal 14, and each of the gold wires is adjusted in length to secure a length necessary for vibration. It was done and soldered.

[0005]

However, in the above-mentioned conventional structure, the insulating substrate 11 and the terminals 14 are individually punched and formed, and the terminals 14 are formed in the square holes 13a, 13a of the insulating substrate 11.
After inserting into b, it takes a lot of time to join in the caulking process,
Increases cost. Further, in the speaker assembling process, a large number of steps are required to insert the gold wire length adjusting jig after the gold wire is inserted into the through hole 17 of the speaker terminal and perform the soldering process. Had.

An object of the present invention is to provide a speaker terminal capable of manufacturing a speaker terminal at a low cost and reducing the number of assembling steps of the speaker. is there.

[0007]

In order to solve this problem, a speaker terminal according to the present invention is provided with a notch portion through which a voice coil lead wire or a connection wire to an external device is hooked or inserted, and a through-hole. Conductive parts provided with grooves for heat insulation and short-circuit prevention formed between them at both ends, and composed of a main body part consisting of an insulating substrate provided with a mounting hole at the center for mounting to a speaker frame It is.

[0008]

With this configuration, when manufacturing a speaker terminal, it is possible to manufacture only a pattern printing step, an etching step, and a punching step of an insulating substrate on which conductive portions are laminated, so that the number of steps is small and the cost is reduced. Can be achieved. In addition, the insulating substrate with the conductive parts used for the printed circuit board is an indispensable material for electrical products, but scrap materials may be generated due to material removal, and these can be used effectively. It is. Furthermore, in the speaker assembling step, the gold wire is fixed to the through-hole of the speaker terminal and the soldering process is performed while also adjusting the length of the gold wire, so that the number of assembly steps can be reduced.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a speaker terminal according to the embodiment. In FIG. 1, reference numeral 1 denotes an insulating substrate formed of, for example, a phenolic resin plate with copper foil, and reference numeral 2 denotes a frame (not shown). The mounting holes 3a or 9a and 3b or 9b provided at the center of the insulating substrate 1 for coupling are two semicircular shapes slightly smaller than the diameter of the gold wire of the speaker provided on both sides of the mounting hole 2. It is a notch having a through hole. 4a is a through hole 5a for solder joining between the notch 3a or 9a and the gold wire.
6a and a conductive portion such as a copper foil provided with grooves 7a and 8a for heat insulation and short circuit prevention. Reference numeral 4b denotes a conductive portion such as a copper foil provided with through holes 5b and 6b for solder bonding between the cutout portions 3b or 9b and the gold wire and grooves 7b and 8b for heat insulation and short circuit prevention.

The loudspeaker terminal of the present invention constructed as described above is firstly connected to a loudspeaker frame (not shown) via an aluminum rivet or the like in a mounting hole 2 provided at the center of the insulating substrate 1, and Cut-out portions 3a or 9 each having a semicircular through-hole by securing two lengths necessary for vibration to two gold thread wires drawn out from the voice coil of the speaker.
a and 3b or 9b. The gold wire has a circular cross section and is flexible, and the notch portions 3a, 9a, 3b, 9b are pinched because the tip portions are slightly smaller than the thickness of the gold wire. And it is soldered to each conductive part 4a, 4b.
Alternatively, the above-mentioned gold wire is connected to a through hole 5 for solder bonding with the gold wire.
a or 5b and 6a or 6b, and may be soldered to the conductive portions 4a and 4b.

Further, in soldering the two gold wires drawn out of the voice coil of the speaker, heat during soldering is not dissipated by the grooves 7a, 8a and 7b, 8b for heat insulation and short circuit prevention. Can be soldered. Also, terminals such as capacitors are connected to the through holes 5a or 5b,
In addition, when soldering is performed by inserting the wire into one of 6a and 6b, not only has the effect of preventing the gold thread wire previously soldered from being re-melted and coming off the conductive portions 4a and 4b, Even when the gold wire is inserted into the cutout portions 3a or 9a and 3b or 9b having semicircular through holes and then soldered to the respective conductive portions 4a and 4b, the through holes 5a or 5
Since b and 6a or 6b also exhibit a heat insulating effect, the solderability is good.

As described above, the speaker terminal according to the present embodiment can be manufactured only by the pattern printing step, the etching step, and the punching step of the phenol resin plate with copper foil, so that the number of steps is small, and the speaker terminal is small. Cost can be reduced. In addition, the insulating substrate with the conductive parts used for the printed circuit board is an indispensable material for electrical products, but scrap materials may be generated due to material removal, and these can be used effectively. It is.
Further, in the speaker assembling process, the length of the wire is also fixed to the through-hole of the speaker terminal and the soldering process is performed, so that the number of steps can be reduced and a low-cost speaker can be provided.

[0013]

As described above, the speaker terminal according to the present invention can be manufactured only by the pattern printing step, the etching step, and the punching step of the insulating substrate having the conductive part, so that the number of steps is small, and the speaker terminal is small. Cost can be reduced. Furthermore, in the speaker assembling process, the length of the wire is also fixed to the through-hole of the speaker terminal and the soldering process is performed, so that the number of steps can be reduced and a low-cost speaker can be provided. It is.

[Brief description of the drawings]

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

2A is a perspective view showing a configuration of a conventional speaker terminal. FIG. 2B is a perspective view of an insulating substrate of the speaker terminal. FIG. 2C is a perspective view of a terminal of the speaker terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating substrate 2 Mounting holes 3a, 3b Notch 4a, 4b Conducting part 5a, 5b Through hole 6a, 6b Through hole 7a, 7b Groove 8a, 8b Groove 9a, 9b Notch

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuhiro Hasegawa 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-5-336592 (JP, A) JP-A-63-65394 (JP, U) JP-A-62-147992 (JP, U) JP-A-62-175669 (JP, A) U) Japanese Utility Model Showa 54-122202 (JP, U) Japanese Utility Model Showa 62-187863 (JP, U) Japanese Utility Model Showa 63-85995 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) ) H04R 9/02 H04R 9/04 103

Claims (1)

(57) [Claims] 1. A cutout portion through which a voice coil lead wire or a connection wire to an external device is hooked or inserted, and a through hole, and a conductive film formed between the notch portion and a groove for heat insulation and short circuit prevention. A terminal for a speaker comprising a main body portion made of an insulating substrate provided with a portion at both ends and a mounting hole at a center portion for mounting on a speaker frame.