JPH05336592A - Terminal for speaker - Google Patents

Abstract

PURPOSE:To provide the terminal for speaker which can be manufactured with a little man-hour at low cost. CONSTITUTION:This terminal for speaker is composed of a fitting hole 2 provided at the central part of an insulated board 1 formed by a phenol resin plate with copper foil for joining to a frame, two semicircular holes 3a and 3b provided on both of the sides of the fitting hole 2 a little smaller than the diameter of the gold thread wire of a speaker, small and circular conductive parts 4a provided concentrically to one semicircular hole 3a, large circular conductive part 4b provided concentrically to the other semicircular hole 3b, and notched parts 5a and 5b spread from the respective semicircular holes 3a and 3b to the outer edge of the board 1. Thus, the terminal for speaker can be provided by the pattern printing process, etching process and punching process of the phenol resin plate with copper foil.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker terminal using an insulating substrate in which conductive parts are laminated without using a terminal lug.

[0002]

2. Description of the Related Art In recent years, a speaker terminal is a connection portion for supplying an electric output of a sound reproducing device to the speaker, and it is desired that the speaker terminal be easy to assemble and easy to assemble, both in its manufacturing method and in the speaker assembly process. There is. Also, as a social demand, environmental protection on a global scale is being called for, and effective use of resources is desired. Insulating boards with conductive parts laminated on printed circuit boards are indispensable materials for electrical products, but scraps may be generated due to material removal. ing.

A conventional speaker terminal will be described below. FIGS. 3 and 4 show a conventional speaker terminal, an insulating substrate and a terminal lug which form the terminal, respectively. In FIG. 4, 11 is an insulating substrate formed of a vulcanized fiber plate, 12 is a mounting hole for coupling to a frame provided in the central portion of the insulating substrate 11, and 13a and 13b are provided on both sides of the mounting hole 12. Both are square holes that can be opened by press molding. Figure 4
18 is a terminal lug terminal coupled to the insulating substrate 11, 14 is a fitting portion into which a flat connection terminal for wiring from the amplifier side is inserted, 15 is a flat portion, and 16 is the flat portion 1.
5 is a caulking projection portion having a through hole 17 provided at the center of 5. FIG. 3 shows the square holes 13a and 13b of the insulating substrate 11 described above.
Then, the square tubular caulking protrusion 16 of the terminal lug terminal 18 is inserted and caulked.

The operation of the speaker terminal configured as described above will be described below. First, the speaker terminal is connected to a frame (not shown) in the mounting hole 12 via an aluminum rivet or the like. The two gold thread wires drawn from the voice coil of the speaker are inserted into the through hole 17 provided in the center of the flat portion 15 of the terminal lug terminal 18. Then, in order to secure a length necessary for vibration, each gold thread wire is adjusted in length and soldered.

[0005]

However, in the above-mentioned conventional configuration, the speaker terminal is manufactured by the following method.
Since the insulating substrate 11 and the terminal lug terminal 18 are individually stamped and formed, and the terminal lug terminal 18 is inserted into the square holes 13a and 13b of the insulating substrate 11 and then fixed in the caulking process, it takes a lot of man-hours and a high cost. Furthermore, in the speaker assembling process, after the gold wire is inserted into the through hole of the speaker terminal and the jig for adjusting the length of the gold wire is inserted and soldering is performed, there is a problem that a large number of processes are required. Was there.

The present invention solves the above-mentioned conventional problems. In the speaker terminal, it can be realized by a pattern printing process, an etching process and a punching process of an insulating substrate having conductive parts laminated, so that the number of steps is small and the cost is reduced. Can be achieved. Furthermore, the insulating substrate, which is used for the printed circuit board and is formed by laminating the conductive parts, is an indispensable material for electric products. However, a scrap material may be generated due to the material removal, and these materials can be effectively used. Another object of the present invention is to provide a speaker terminal in which the number of steps can be reduced because the gold thread wire is fixed to the through hole of the speaker terminal and soldering is performed for the purpose of adjusting the length in the speaker assembly process.

[0007]

In order to achieve this object, a speaker terminal according to the present invention is provided with a mounting hole for coupling to a frame provided in a central portion of an insulating substrate having conductive parts laminated thereon, and the mounting. Two semicircular through holes provided on both sides of the hole, which are slightly smaller than the diameter of the gold wire of the speaker, a small circular conductive portion concentrically provided with the one semicircular through hole, and the other semicircle. The large circular conductive portion is provided concentrically with the circular through hole, and a notch extending from each of the semicircular through holes toward the outer edge of the insulating substrate.

[0008]

With this structure, the speaker terminal can be realized by the pattern printing step, the etching step and the punching step of the insulating substrate having the conductive portions laminated, so that the number of steps is small and the cost can be reduced. Furthermore, the insulating substrate, which is used for the printed circuit board and is formed by laminating the conductive parts, is an indispensable material for electric products. However, a scrap material may be generated due to the material removal, and these materials can be effectively used. Further, in the speaker assembling process, the gold thread is fixed to the through hole of the speaker terminal and soldering is performed for the purpose of adjusting the length of the gold yarn wire, so that the number of processes can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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 a first embodiment of the present invention. In FIG. 1, 1 is an insulating substrate formed of, for example, a phenol resin plate with copper foil, 2 is a mounting hole provided in the central portion of the insulating substrate 1 for coupling to a frame (not shown), 3a, 3b. Is two semicircular through holes that are slightly smaller than the diameter of the gold thread wire of the speaker provided on both sides of the mounting hole 2,
Reference numeral 4a denotes a conductive portion such as a small circular copper provided concentrically with the one semicircular through hole 3a, and 4b denotes the other semicircular through hole 3a.
a large circular conductive portion such as copper provided concentrically with b
Reference numerals a and 5b are notches extending from the respective semicircular through holes 3a and 3b toward the outer edge of the insulating substrate 1.

The operation of the speaker terminal constructed as above will be described below. First, the two gold thread wires pulled out from the voice coil of the speaker are inserted into the notches 5a and 5b with the lengths required for vibration secured. The gold wire has a circular cross section and is flexible, and since the deepest portions of the cut portions 5a and 5b are slightly smaller than the thickness of the gold wire, they are sandwiched. And each semi-circular through hole 3a,
Circular conductive parts 4a, 4 such as copper provided concentrically with 3b
Soldered to b. The conductive parts 4a and 4b such as large and small circular copper show polarity.

As described above, according to this embodiment, the mounting hole 2 for coupling to the frame provided in the central portion of the insulating substrate 1 formed of the phenol resin plate with copper foil, and the mounting hole 2 are provided. Two semicircular through holes 3a and 3b, which are slightly smaller than the diameter of the gold wire of the speaker provided on both sides, and a small circular conductive portion 4a such as copper provided concentrically with the one semicircular through hole 3a. And a conductive portion 4b such as a large circular copper provided concentrically with the other semicircular through hole 3b, and a notch extending from each of the semicircular through holes 3a and 3b toward the outer edge portion of the insulating substrate 1. By comprising the parts 5a and 5b, since it can be realized by the pattern printing process, the etching process and the punching process of the phenol resin plate with copper foil, the number of processes is small and the cost of the speaker terminal can be reduced. Furthermore, the insulating substrate 1 used for the printed circuit board and having the conductive parts laminated thereon is an essential material for electrical products, but scraps may be generated due to material removal, and these can be effectively utilized. .. Furthermore, in the speaker assembly process,
Since the gold thread wire is fixed to the through hole of the speaker terminal for the purpose of adjusting the length and the soldering process is performed, the number of steps can be reduced and a low cost speaker can be provided.

A second embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a perspective view of a speaker terminal showing a second embodiment of the present invention. In FIG. 2, reference numeral 1 is an insulating substrate formed of, for example, a phenol resin plate with a copper foil, 2 is a mounting hole provided in the central portion of the insulating substrate 1 for coupling to a frame (not shown), 3a,
Reference numeral 3b denotes two semi-circular through holes slightly smaller than the diameter of the gold wire of the speaker provided on both sides of the mounting hole 2, and 4a denotes a small circular copper provided concentrically with the one semi-circular through hole 3a. The conductive parts 4b and the like are conductive parts such as a large circular copper provided concentrically with the other semicircular through hole 3b, and the above is the same as that described in the first embodiment.

The difference from FIG. 1 is that each of the semicircular through holes 3a,
The sawtooth-shaped fracture surfaces 7a, 7b, 7c, and 7d are formed in the cut portions 6a and 6b that spread from the outer peripheral portion of the insulating substrate 1 from 3b.
Is formed. The operation of the speaker terminal configured as above will be described below. If a flexible gold wire with a circular cross section is inserted into the cut portions 6a and 6b after adjusting the length of the gold wire, the serrated fracture surface 7
It is securely fixed by a, 7b, 7c and 7d, and soldering becomes easy.

By forming the fracture surfaces 7a to 7d as described above, the gold thread wire can be securely fixed.

[0015]

As described above, according to the present invention, the mounting hole for connecting to the frame provided in the central portion of the insulating substrate and the diameter of the gold thread wire of the speaker provided on both sides of the mounting hole are slightly smaller. A semicircular through hole, a small circular conductive portion concentrically provided with the one semicircular through hole, and a large circular conductive portion concentrically provided with the other semicircular through hole, The number of steps is small because it can be realized by the pattern printing step, the etching step, and the punching step of the insulating substrate having the conductive portion, by forming the notch that spreads from each of the semicircular through holes toward the outer edge of the insulating substrate. The cost of speaker terminals can be reduced. Further, in the speaker assembling process, the gold thread wire is fixed to the through hole of the speaker terminal for soldering purposes for the purpose of adjusting the length, and the soldering process is performed. Therefore, the number of processes can be reduced and a low cost speaker can be provided.

Further, by forming a sawtooth-shaped fracture surface in the notch extending from each through hole toward the outer edge of the insulating substrate, it is possible to securely fix the gold yarn wire when adjusting the length. It provides an effective technical means that can be improved in quality.

[Brief description of drawings]

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

FIG. 2 is a perspective view of a speaker terminal according to a second embodiment of the present invention.

FIG. 3 is a perspective view of a conventional speaker terminal.

FIG. 4 is an exploded perspective view of a conventional speaker terminal.

[Explanation of symbols]

 1 Insulating substrate 2 Mounting holes 3a, 3b Semi-circular through holes 4a, 4b Conductive parts such as copper 5a, 5b, 6a, 6b Notches 7a, 7b, 7c, 7d Sawtooth fracture surface

Claims (2)

[Claims] 1. A mounting hole for coupling to a frame, which is provided in a central portion of an insulating substrate, and two semicircular through holes, which are provided on both sides of the mounting hole and are slightly smaller than the diameter of a gold thread wire of a speaker. A small circular conductive portion concentrically provided with the one semicircular through hole, a large circular conductive portion concentrically provided with the other semicircular through hole, and each of the semicircular through holes A speaker terminal composed of a notch extending from the outer edge of the insulating substrate. 2. The speaker terminal according to claim 1, wherein a sawtooth-shaped fracture surface is formed in a notch extending from each semicircular through hole toward the outer edge of the insulating substrate.