JPH10155190A - Connection wiring structure for speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive connection wiring structure for a speaker without increasing wiring man-hours by concentrating input terminal lugs onto one position and interconnecting the input terminal lugs and plain knitting tinsel terminals with a conductor wire or the like. SOLUTION: A concentric corrugation is integrally formed to a damper base member to which voice signal input conductors 21, 22 made of plain knitting tinsel wires leading to a voice coil are knitted in directions different from 180 deg. in this knitting conduction damper 1h. A terminal ring 3 made of an insulating material such as a resin is adhered to an adhesion margin 12 provided to an outer circumferential part of the conduction damper 1h. The terminal ring 3 has a tongue shaped projection 31, and input terminal lugs 4a, 4b are arranged by using input lug mount square holes 32a, 32b. The ends of the plain knitting tinsel wires 21, 22 leading to the outer circumferential part of the conductive damper 1h and the terminal lugs 4a, 4b are interconnected by a conductor to configure an assembly ring. A round copper wire curved in a circular-arc or a copper plate pressed to be a prescribed shape is used for the conductor wires.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection wiring structure of a speaker for simplifying a wiring structure in assembling a speaker unit, and more particularly to a connection wiring structure in which main members of a vibration system are incorporated to constitute an assembly unit. About.

[0002]

2. Description of the Related Art As a conventional wiring structure of a general speaker, as shown in FIG. 14, input terminals are provided with a positive terminal lug 4a and a negative terminal lug 4b attached to a substrate 41, and the substrate 41 is connected to a frame F. Attached to
From the input terminal lugs 4a and 4b, two cord-shaped tinsel wires 2
w is a voice coil bobbin 51 via a diaphragm (cone).
Is a general configuration. The connection between the diaphragm (cone) and the voice coil and the tinsel wire 2w is omitted.

However, in the structure shown in FIG. 14, the tinsel wire 2w resonates at the time of a large input, so that a so-called jumping rope state is obtained.
There are drawbacks such as the tinsel wire 2w hitting the back surface of the diaphragm or the front surface of the damper and generating an abnormal sound. Also, in recent years, thinner in-vehicle speakers have been required, but the conventional cord-like tinsel wire 2w
A speaker using the above is structurally disadvantageous for thinning, and has a drawback that the wiring structure becomes complicated.

[0004] In order to solve the above-mentioned conventional disadvantages, it has been proposed to simplify the wiring structure of input signals by using a conductive damper in which a conductive material is mounted along corrugations. We have also proposed and implemented various forms of wiring structures and speakers.

[0005] In particular, we see FIGS.
As shown in FIG. 20, a speaker structure in which a conductive damper 1 and a terminal ring 3 with an input terminal lug are formed into an assembly ring 7 and this is incorporated therein has been previously proposed (for example, Japanese Patent Application No. 7-110298). .

[0006] This configuration will be described.
The woven fabric is dipped in a solution of the phenol resin diluted with methanol, the woven fabric is impregnated with the phenol resin, the solvent is volatilized, and the tackiness of the resin is removed. To obtain a base cloth.

[0007] As a conductive material, a bronze wire formed by winding a copper wire foil around a fiber is braided in an arbitrary number into a flat knit shape to form a flat braided bronze wire 2, and the flat braided bronze wire 2 is used as the base fabric for the damper. The thread is sewn in parallel with two threads at positions arbitrarily distributed from the center line of the cutting width of, and the base cloth in this state is hot-press molded to form a concentric corrugation 11. The flat knitted tinsel wire 2 is mounted along the corrugation 11, and after this molding, unnecessary portions are removed by a punch press, the outer shape is adjusted, and the conductive damper 1 (hereinafter referred to as a sewn conductive damper 1h) is formed. .)

Therefore, as shown in FIG. 10, the sewn conductive damper 1h is formed by sewing two flat braided tinsel wires 2 in parallel. The flat knitting silk wire 2 extending over the portion is also cut and distributed two by two from the inner peripheral portion 13, for a total of four flat knitting yarn wires 2.
1, 22, 23, and 24 are arranged in parallel. The flat braided tinsel wires 21 and 22 extending to the tongue-shaped convex portion 14 shown in FIG. 10 are used for input, and the flat braided tinsel wire on the opposite side is used. Reference numerals 23 and 24 function as balancers for balancing the compliance of the sewing conductive damper 1h.

The terminal ring 3 is basically made of a ring-shaped glass fiber-filled ABS resin having a predetermined thickness having an inner diameter and an outer diameter set to arbitrary dimensions. A tongue-shaped convex portion 31 as shown in FIG. 10 is provided. The tongue-like portion 31 has terminals corresponding to the positions of the flat knitted tinsel wire ends 21b and 22b extending over the outer periphery of the sewing conductive damper 1h. Square holes 32a, 32b for attaching lugs 4a, 4b are provided.

A rubber adhesive h is applied to the inner peripheral portion of the terminal ring 3.
Is applied and dried for a predetermined time to evaporate the solvent of the adhesive h. Then, the sticking portion 12 of the damper 1 and the terminal ring 3 are connected to the protrusion 14 of the damper and the protrusion 31 of the terminal ring 3.
Are overlapped and arranged so that they match, and the damping part 1
Then, the adhesive h is thermally reactivated by hot pressing from the upper surface of the substrate 2, and the bonding margin 12 and the terminal ring 3 are bonded together.

Next, the crimping portion 4a of the terminal lugs 4a, 4b
When the terminals 1 and 4b1 are inserted into the holes 32a and 32b of the terminal ring 3 and fixed by caulking, as shown in FIG.
Part of the input wire 4b is attached to the ring 3 while being pressed against the front side of the input wire end 2b.

The voice coil 5 is, as shown in FIG.
A strip-shaped copper foil having a long side and a short side of a predetermined dimension is provided at a predetermined position on the outer peripheral portion of the coil bobbin 51, that is, at a position corresponding to the flat knitting tinsel wire 2 (for input) provided on the sewing conductive damper 1h. The end of the coil wire is connected and wired to the lower end of the copper foil, and the copper foil serves as an input electrode (hereinafter, referred to as a copper foil electrode 52). Reference numeral 52 denotes a structure in which a part of the surface is exposed from the reinforcing paper square hole. The actual copper foil electrode 52 has a size indicated by a broken line in the figure.

When the voice coil 5 is assembled with the inner diameter 13 of the sewing conductive damper 1h inserted into the outer periphery of the coil bobbin 51 with respect to the sewing conductive damper 1h, the voice coil 5 becomes magnetic. When the voice signal is applied to the voice coil 5 in such a state as to be inclined with respect to the gap G, the voice coil 5 causes an amplitude motion while being inclined with respect to the magnetic gap G, and the voice coil 5 Contacts the magnetic gap G and generates an abnormal sound.

Therefore, in order to secure the assembly accuracy of the voice coil 5 with respect to the sewing conductive damper 1h, the assembly of the voice coil 5 and the sewing conductive damper 1h with the terminal ring 3 is performed by using a set jig J as shown in FIG. Using the inner peripheral portion of the voice coil 5 at a predetermined position of the set jig J,
Then, the sewing conductive damper 1h with the terminal ring 3 is installed in the ring installation portion J2 of the set jig J. At this time, the sewing conductive damper 1h
Is inserted into the outer peripheral portion of the coil bobbin 51, so that the copper foil electrode 52 provided on the outer peripheral portion of the coil bobbin 51 and the end portion 21 of the flat knitted tinsel wire extending over the inner diameter of the sewing conductive damper 1h.
a and 22a.

As shown in FIG. 12, the condition of the voice coil 5 and the sewing conductive damper 1h installed on the set jig J is such that the outer peripheral portion of the coil bobbin 51 comes into contact with the inner peripheral portion of the damper 13 and the outer peripheral portion of the coil bobbin 51. The input copper foil 52 provided in the portion comes into contact with the ends 21a and 22a of the flat knitted tinsel wire extending over the inner diameter portion 13 of the sewing conductive damper.
Furthermore, the ends of the terminal lugs 4a and 4b and the flat knitting wire end 21
The contact portions a and 22a are connected by soldering as shown in FIG.

In this state, the probe of the tester is brought into contact with the terminal lugs 4a and 4b, and after checking the presence / absence of disconnection and the resistance value of the coil and the like, the entire periphery of the contact portion between the outer peripheral portion of the coil bobbin 51 and the inner diameter portion 13 of the damper is inspected. As shown in FIG. 12, the adhesive h is applied, and after the adhesive h reaches a predetermined strength required for maintaining the assembled state, the adhesive h is removed from the set jig J to obtain the assembly ring 7.

After a jig Sp generally called a spacer is inserted into the inner periphery of the voice coil 5 of the assembly ring 7 as shown in FIG. 13, the assembly ring 7 is mounted on a frame F. The mounting method is the same as that of the conventional speaker assembly. After applying a predetermined amount of adhesive to a predetermined position (damper seat) of the speaker frame, the voice coil 5 mounted on the assembly ring 7 is inserted into the magnetic gap G together with the spacer Sp. Then, as shown in FIG. 13, the terminal ring 3 of the assembly ring 7 is adhered to the frame damper seat, and the connection wiring between the voice coil 5 and the input terminal 4 has already been completed. And complete as a speaker.

As described above, the assembly ring 7 has the two flat braided tinsel wires 2 used for the sewn conductive damper 1h sewn in parallel, and this has the advantage that the positive side terminal lug 4a and the negative side terminal lug 4b Since the arrangement can be centralized in the tongue-shaped convex portion 31 of the terminal ring, and the same interval between the terminal lugs 4a and 4b as in the conventional general speaker described with reference to FIG. 14 can be obtained, FIGS. As shown in FIG. 3, the connection wiring lugs La, L provided at the tip of the input lead wire L are provided.
There is no change in the wiring operation when connecting and wiring the terminal lugs 4a and 4b to the input terminal lugs 4a and 4b, and the conventional wiring operation can be performed smoothly.

[0019]

As described above, the wiring structure of the loudspeaker proposed by us is extremely effective, but has the following problems. In other words, in the configuration of the conductive damper, two flat braided tinsel wires 2 are sewn in parallel, so as the diameter of the voice coil 5 becomes smaller, two flat braided tinsel wires 2 are sewn in parallel. It becomes difficult. For example, the standard sewing needle pitch of the sewing machine to be sewn is about 22 mm at present, and if the needle pitch is smaller than this size, a custom-ordered machine must be used. Installing equipment is uneconomical.

Further, even if the flat braided tinsel wire 2 is arranged in parallel, as shown in the figure, the flat braided tinsel wire 2 extending to the opposite side of the terminal lugs 4a, 4b is not used as a conductor. Thus, if the opposite flat knitting tint wire 2 is made to function as one signal input line, only one flat knitting tint wire 2 to be sewn is required.

In practice, the narrower the interval between the parallel arrangement of the flat braided tinsel wire 2 becomes, the more the flattened tinsel wire 2 becomes similar in form to the wider flat braided tinsel wire 2. One wire is sufficient, and if the number of the flat braided kinshi wires 2 occupying a large proportion of the material cost is reduced to one, it is extremely effective for cost reduction. We have already proposed a type in which a single flat knitting wire 2 is arranged and mounted substantially on the center line of the damper.

A description will be given of an example in which one flat knitting wire 2 is arranged substantially on the center line of the damper. As a first example, a phenol-impregnated woven cloth is cut to a predetermined width to obtain a base cloth for the conductive damper 1. By sewing the flat knitting tint wire 2 on the center line of the base cloth cutting width with a thread, and forming the concentric corrugation 11 by hot pressing the woven fabric with the flat knitting tint wire 2, The flat knitting wire 2 is corrugated 11 on the center line of the damper.
It is mounted so that it conforms to, and the unnecessary shape is removed by a punch press to adjust the external shape. In this case, as shown in FIG. 15, two tongue-shaped convex portions 14a are provided on the outer peripheral portion on the center line.
14b, and a sewn conductive damper 1h in which the flat knitted tinsel wire 2 extends over the projections 14a, 14b is obtained.

The sewing conductive damper 1h also cuts the inner diameter portion 13 of the damper in the trimming step, so that the flat braided tinsel wire 2 reaching this portion is also cut, and the flat knitted tinsel wire 2 is cut to the inner diameter portion 1
2 flat knitting lines 21 and 22 distributed from 3
Are arranged on the center line of the damper. Therefore,
The difference from the conventional sewn conductive damper 1h in which two flat braided tinsel wires 2 are arranged in parallel is that one flat braided tinsel wire 21 is used for input on the plus side and the other flat braided tinsel wire 22 is used for input on the minus side. In addition, since they are arranged on the center line, they also serve as a balancer for balancing the compliance of the conductive sewing damper 1h.

The terminal ring 3 is basically made of a ring-shaped resin having an inner diameter and an outer diameter set to arbitrary dimensions and having a predetermined thickness, and an outer peripheral portion of the sewing conductive damper 1h is provided on an outer peripheral portion of the ring. The tongue-shaped convex portions 31 as shown in FIG. 15 corresponding to the positions of the flat knitting yarn end portions 21b and 22b extending over the portion
a, 31b are provided, and one tongue-shaped convex portion 31 is provided.
a is a square hole 32a for mounting the terminal lug 4a, and the other tongue-shaped projection 31b is a square hole 32 for mounting the terminal lug 4b.
b is provided.

As shown in FIG. 15, a predetermined amount of a rubber adhesive h is applied to the inner peripheral portion of the terminal ring 3 and dried for a predetermined time to evaporate the solvent of the adhesive.
h and the terminal ring 3 are connected to the tongue-shaped projections 14a, 14b of the sewing conductive damper 1h and the terminal ring 3.
Are overlapped so that the protrusions 31a and 31b of the sewing conductors coincide with each other, and hot-pressed from above the pasting portion 12 of the sewn conductive damper 1h, and the adhesive h is thermally reactivated so that the pasting portion 12 and the terminal ring 3 Paste.

Further, as shown in FIGS. 15 and 16, after the damper 1 and the terminal ring 3 are bonded,
When the caulked portions 4a1 and 4b1 of the terminal lugs 4a1 and 4b1 are inserted into the holes 32a and 32b of the terminal ring 3 and caulked, as shown in FIG. The terminal ring 3 is pressed against the front side of the flat knitted tinsel wire ends 21b, 22b extending over the flaky projections 14a, 14b.
And the sewing conductive damper 1h and the terminal lugs 4a, 4a
b is completed, and the ring 3 with the damper is mounted on the speaker frame F. The mounting method is the same as the conventional speaker assembling method.

Briefly, as shown in FIG. 16, after a predetermined amount of adhesive h is applied to the damper seat F1, a spacer jig Sp is mounted on the inner peripheral side of the voice coil 5 as shown in FIG. Further, the outer peripheral portion of the coil bobbin 51 is inserted into the inner diameter 13 of the sewing conductive damper 1h of the ring 3 with the damper,
At the time of insertion, the input copper foil electrode 52 of the coil bobbin 51
And the spacer 21 is inserted into the magnetic gap G together with the spacer jig Sp, as shown in FIG.
As a result, as shown in FIG.
Is bonded to the damper seat 81, and the voice coil is also arranged at a regular position in the magnetic gap G.

The voice coil 5 is basically the same as the conventional one, but as shown in FIG. 15, only the position of the copper foil 52 is changed and the voice coil 5 is attached to the flat knitted tinsel wire 2 of the sewn conductive damper 1h. It is arranged at a corresponding position, that is, at a position distributed 180 degrees on the center line of the diameter of the coil bobbin 51,
The contact portion between the copper foil electrode 52 and the end portion 21a of the flat braided tinsel wire is soldered in the state of being installed on the frame F as described above, and the inner diameter 13 of the sewing conductive damper 1h and the coil bobbin as shown in FIG. An adhesive h is applied to a joint portion of the outer peripheral portion 51 with the outer peripheral portion, and the process proceeds to a subsequent step to complete a speaker.

[0029]

In this method, the cost can be reduced because the number of the flat braided tinsel wire 2 is one. However, the position of the input terminal lugs 4a and 4b is as shown in FIGS. 16 and 17, and one terminal lug, for example, the other terminal lug (minus terminal lug 4b) is assembled with the position of the positive terminal lug 4a. Approximately 180 ° at the outer periphery of the ring 7
It is located at the position where it is distributed to, so to speak, a wide interval lug.

That is, the terminal lugs 4a and 4b are arranged in a state in which the distance between the terminal lugs 4a and 4b is widened to the left and right. When the assembling ring 7 is mounted on the frame 8, the assembling ring on which the two flat braided tinsel wires 2 are mounted is mounted. The terminal lug 4a, 4b at 7 has a lug interval much wider than that of the narrow lug, and is provided at the tip of the input lead wire L as shown in FIG. Connection wiring lugs La, L
The arrangement of b must be widened.

Therefore, the connection wiring lugs La and Lb provided at the end of the input lead wire L are connected to the terminal lugs 4.
Comparing the wiring work to connect to the positions a and 4b, the wiring work for the narrow lugs is completed in almost one operation,
In the case of a wide interval lug, a switching operation of the connection wiring lugs La and Lb provided at the end of the input lead wire L and other auxiliary operations are added, so that two or more operations are required, which is inevitable. There is a problem that man-hours increase and workability deteriorates.

A second example in which measures against the above-mentioned disadvantages of the first example are taken will be described. The terminal ring 3 is formed by pressing a printed board or the like obtained by attaching a copper foil or the like on a resin plate. The tongue-shaped convex portions 31, 31a and 31b are formed as shown in FIG.
As shown in FIG. 8, three positions are provided at 90 degrees from the center of the ring, one convex portion 31 is disposed at the terminal attachment portion, and the other two convex portions 31a and 31b are disposed at positions distributed 180 degrees on the center line. Then, a patterned terminal ring 3 having a wiring pattern 3P provided on the side where the conductive damper 1 is to be attached as shown in FIG. 18 is obtained.

Further, as shown in FIGS. 18 and 19, the tongue-shaped projection 31 for attaching the terminal is located at the same position as the conductive damper 1 in which two conventional flat braided tinsel wires are arranged in parallel. Lug 4
a, 4b are provided with mounting holes 32a, 32b, and the terminal lugs 4a, 4b are caulked 4a1, 4b1 with holes 32a, 3b.
After being inserted into 2b, the terminal lugs 4a and 4b are crimped to complete a ring 3 with terminal lugs in which a portion of the terminal lugs 4a and 4b are pressed against the surface of the wiring pattern.

Further, the damper impregnates the fibers constituting the woven fabric with a phenol resin having a predetermined concentration diluted with methanol, and volatilizes the solvent to remove the resin tackiness. Using a non-impregnated yarn as the weft, a woven fabric is prepared by weaving the flat knitting wire 2 on the weft side, and the woven fabric is heated so that the flat knitting yarn 2 is arranged on the center line of the corrugation 11. A pressure-molded woven conductive damper 1i is obtained.

In the woven conductive damper 1i thus obtained, since the damper inner diameter portion 13 is cut in the trimming step, the flat knitted tinsel wire 2 arranged on the center line of the damper is cut similarly to the first example. A total of two flat knitting kinshi lines 2
In the trimming step, two tongue-shaped convex portions 14a and 14b are provided on the outer periphery of the damper as shown in FIG.
The structure is such that the flat knitting yarn lines 21 and 22 extend over b.

Further, as shown in FIG. 18, a predetermined amount of a rubber-based adhesive h is applied to the inner peripheral portion of the terminal ring 3 and dried for a predetermined time to evaporate the solvent of the adhesive. Of the pattern 3P, that is, the woven conductive damper 1i
After the cream solder sc is applied to the place where the flat knitting wire ends 21b and 22b reach, the damping part 12 and the outer periphery of the terminal ring 3, the protrusions 14a and 14b of the damper and the protrusion of the terminal ring 3 are formed. When the portions 31a and 31b are arranged together, the back surface of the flat braided tinsel wire 2 that extends over the pasting portion 12 of the woven conductive damper 1i and the location where the adhesive h is applied, and further over the convex portions 14a and 14b of the woven conductive damper 1i. And the cream solder sc (see FIG. 19) is in contact with the exposed portion of the solder paste.

In this state, the sticking portion 12 of the damper 1i
Then, the adhesive h is thermally reactivated by hot pressing at about 250 ° C. for several seconds from above the convex portions 14a and 14b, and while the pasting portion 12 of the woven conductive damper 1i and the terminal ring 3 are pasted together, the cream solder is simultaneously The flat knitted tinsel wire 2 which melts the sc and extends over the convex portions 14a and 14b of the woven conductive damper 1i
To obtain a ring obtained by soldering the exposed portion of the back surface and the wiring pattern 3P provided on the terminal ring 3, that is, a ring 3 with terminal lugs and woven conductive dampers 1i (see FIG. 19).

The mounting method of the voice coil 5 is the same as the method of obtaining the conventional assembly ring 7, and as shown in FIG.
After that, as shown in FIG. 20, the speaker is completed by the same manufacturing method as the speaker using the conventional assembly ring 7. In this method, the flat braided tinsel wire 2 is one, and the arrangement of the input terminal lugs 4a and 4b is gathered in one place. Due to the lag, the disadvantage of the first example is eliminated.

However, in the case where the wiring pattern 3P is provided on the terminal ring 3 itself using a printed board or the like, the cost is naturally higher than that of the terminal ring 3 having no pattern 3P. As long as there is no such structure, there is a disadvantage that the structure is not sufficient to be used, but the cost is high if the structure is used only for the structure of the conductive damper 1 alone.

The sewn conductive damper 1h sewn with the flat knit tinsel wire 2 is connected to the terminal ring 3 provided with the wiring pattern 3P.
In this case, there is a damper base cloth, which is a good insulator, between the plain knitting wire 2 attached to the sewing conductive damper 1h and the wiring pattern 3P. It is practically difficult to connect the wiring by soldering.

Accordingly, in order to ensure the reliability of the connection between the wiring pattern 3P provided on the terminal ring 3 and the flat knitting wire 2 mounted on the conductive damper 1 as described above, the flat knitting yarn wire 2 is used. The use of the woven conductive damper 1i is a necessary condition without using the sewn conductive damper 1h, but this condition limits the structure of the conductive damper 1 and imposes a limitation on the degree of freedom of design. have.

Therefore, an object of the present invention is to solve the above-mentioned problems, and to arrange the input terminal lugs at appropriate intervals so as to connect to the connection wiring lugs, thereby increasing the number of wiring operations. An object of the present invention is to provide an inexpensive and inexpensive speaker connection wiring structure.

[0043]

The connection wiring structure for a speaker according to the present invention basically integrates the arrangement of the input terminal lugs in one place, and furthermore, the connection between the input terminal lugs and the end of the flat knitting wire. The connection wiring is connected by a conductive wire or the like.

That is, according to the first aspect of the present invention, a tinsel wire obtained by winding a copper wire foil around a fiber is arbitrarily attached to a damper substrate made of a woven fabric or the like impregnated with a thermosetting resin such as a phenol resin. A conductor made of a flat braided tinsel wire that is flat knitted in a number is attached by means such as sewing or weaving, and the damper base material is formed by hot pressing or the like, and concentric corrugations are integrally formed on the damper base material. In the loudspeaker incorporating a conductive portion provided with a conductive portion for inputting an audio signal by the conductive material along the corrugation, an insulating material such as resin is provided on a bonding margin provided on an outer peripheral portion of the conductive damper. A terminal ring for input is attached to the terminal ring, and an input terminal lug is attached to the terminal ring, and a connection wire is connected between the terminal lug and the end of the conductive portion extending to the outer peripheral portion of the conductive damper with a conductive wire. Configure standing ring, and wherein the incorporation of said set upright ring.

According to a second aspect of the present invention, in the construction of the assembly ring, a voice coil is mounted on the conductive damper and an input copper foil electrode portion provided on an outer peripheral portion of a coil bobbin of the voice coil and a conductive damper. The end of the conductive portion extending to the inner peripheral portion of the conductive damper is connected and the terminal lug is connected to the end of the conductive portion extending to the outer peripheral portion of the conductive damper by a conductive wire. I do.

According to the third aspect of the present invention, a tongue-shaped mounting portion for mounting an input terminal lug is provided on an outer peripheral portion of the terminal ring, and at least one pair of input terminal lugs is mounted on the mounting portion. The conductive part mounted on the conductive damper is linearly arranged near the center line, and one end of two conductive parts extending to the outer periphery of the conductive damper is connected to one of the input terminal lugs. Is connected directly to the terminal lug, and the other end and the other terminal lug are connected and connected by a conductor.

According to the fourth aspect of the present invention, a conductor arranging portion having an arbitrary shape groove or the like is provided near a damper sticking portion of the terminal ring or an outer peripheral portion of the terminal ring, and the conductor is arranged in the conductor arranging portion. It is characterized by being mounted.

According to a fifth aspect of the present invention, the conductive wire is a round wire made of copper or the like and is curved in an arc shape.

According to a sixth aspect of the present invention, the conductive wire is formed by pressing a material made of copper or the like into a flat plate or another predetermined shape.

[0050]

According to the present invention, the arrangement of the input terminal lugs is centralized in one place, and the connection wiring between the input terminal lugs and the end portion of the flat knitted tinsel wire can be connected and connected by a conductor or the like, which is advantageous in space factor. As well as simplify the assembly work,
Cost reduction becomes possible.

[0051]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a speaker connection wiring structure according to the present invention will be described with reference to FIGS.
The same components as those of the related art described with reference to FIG. 20 are denoted by the same reference numerals, and detailed description thereof will be omitted.

The conductive damper 1 is basically the same as the first conventional example in which one flat braided tinsel wire 2 is arranged. That is, a woven fabric made of a fiber commonly called Conex is dipped in a solution in which the ratio of phenol and methanol is diluted at a ratio of about 1: 4.5, and the woven fabric is further impregnated with a phenol resin. After removing the tackiness of the resin by volatilizing the solvent, the resin was cut into a predetermined width to obtain a base fabric of the conductive damper 1.

On the other hand, the tinsel wire is formed by processing a tin-alloy copper wire having a bus diameter of 0.1 mm into a foil having a width of 0.32 mm and a thickness of 0.027 mm, and forming a 22-denier para-aramid fiber having a thickness of 200 denier.
A braided wire wound in a single layer at ± 2 times / cm, and further the braided wire is made up of 13 braided pitches of 27.45 ± 0.8
Knitted in a flat knitted shape at 2 mm / time, about 2.2 mm in width, 0.44 mm in thickness, and 0.48 Ω / M in electrical resistance.
The flat knitted tinsel wire 2 is sewn to the center line of the cutting width of the woven fabric for the damper with a thread called Conex # 40, and the woven fabric is hot-pressed and formed into a plurality of concentric circles. Corrugation 11
And the flat braided tinsel wire 2 is formed at a center line of the corrugation 11 and along the corrugation 11.
To obtain the sewing conductive damper 1h.

After molding, unnecessary portions are removed by a punching press in a trimming step, the outer shape is adjusted, and the damper inner diameter portion 13 is cut off when the damper inner diameter portion 13 is cut off in the same manner as in the conventional example in which one flat braided tinsel wire is arranged. Plain knitting yarn line 2 arranged on the line
Is cut, a total of two flat braided tinsel wires 21 and 22 are arranged on the center line of the damper, and the sewn conductive damper 1h in which the flat braided tinsel wire 2 as shown in FIG. Obtained. This shape has an outer diameter of about 76m
m, the diameter of the inner diameter 13 which is the joining portion of the coil bobbin 51 is 2
6.3mm, corrugation 11 is about 2.4mm deep
With a pitch of about 2.8 mm from the vicinity of the inside diameter 13
And a sticking portion 12 of about 4 mm is provided on the outer peripheral portion.

Further, as shown in FIG. 1, the tongue pieces 14a, 14b each having a width of 5 mm and a length of about 1.9 mm are arranged outside the pasting portion 12 and on the center line of the damper, that is, so as to overlap the flat knitting wire 2.
Are provided at two places, and the tongue pieces 14a, 14b are arranged so that the respective tinsel wire ends 21b, 22b extend over the tongue pieces 14a, 14b.
The width of the flat knitted tinsel wires 21 and 22 is about 3 mm by press molding.

The terminal ring 3 is made of ABS resin containing glass fiber in the same manner as in the prior art, and has a thickness of about 3 mm and an inner diameter of 69 mm.
6 mm, a ring shape having an outer diameter of about 83.5 mm, and a tongue having a width of 29 mm, a length of about 4.8 mm, and a thickness of about 2 mm on the center line of the ring as shown in FIG. A protruding portion 31 is provided, and a rib having a width of about 1 mm and a height of 1 mm is provided on the outer side of the protruding portion 31 in the width direction. It is provided integrally toward the part.

A rib 33 having a width of about 1 mm and a height of about 1 mm is provided at the outermost periphery of the ring portion, and as shown in FIG.
A similar rib 34 at a position offset 1 mm inward from
And the rib 34 has a tongue piece 14 of the conductive damper.
a, 14b, ie, the tongue-shaped convex portion 31
A notch 35 having a width of about 5.5 mm is provided at a position separated by 90 ° from the center line provided with. Therefore, as shown in the figure, an arc-shaped groove having a width of 1 mm and a depth of 1 mm is formed on a concentric circle 1 mm inward from the outermost periphery and from the notch 35 to the tongue-shaped protrusion 31. 36
a, 36b, 36c. In this embodiment, the groove 36c is not used.

The tongue-shaped projection 31 has a pitch of about 20 mm distributed from the center line of the ring, and is located near the center of the tongue-shaped projection 31 with two sides of 2 mm and 2.5 mm for input. Square holes 32a, 32b for mounting terminal lugs 4a, 4b
Is provided as shown in FIG. The square hole 32a having a side of 2 mm is for the plus side terminal lug 4a, and the square hole 32b of 2.5 mm is a hole for attaching the minus side terminal lug 4b. As shown in FIG. 4a1, 4b
1 is inserted into the holes 32a and 32b of the terminal ring 3 and then swaged by pressing, the swaged portions 4a1 and 4b1 are divided into four and cut into the back side of the tongue-shaped convex portion 31 to form a swaged state. As shown in FIG.

A rubber-based adhesive h is applied to the inner peripheral portion of the terminal ring 3, that is, as shown in FIG. 1, the entire surface inside the ribs 33 and 34, and dried for a predetermined time to evaporate the solvent of the adhesive. After that, while the outer peripheral portion of the sticking portion 12 of the damper 1 is arranged inside the rib 34 of the terminal ring 3, the terminal ring 3
Tongue piece 14 of conductive damper 1h sewn into notch 35
a and 14b are arranged together, and the adhesive h is thermally reactivated by hot pressing from above the sticking portion 12 of the damper, and the sticking portion 12 and the terminal ring 3 are attached to each other as shown in FIG. The terminal ring 3 with the sewing conductive damper 1h and the input terminal lugs 4a and 4b is obtained.

Further, the diameter is 0.9 mm and the length is about 51.4 m.
m is formed into an arc shape having a radius of about 40.3 mm, that is, an arc shape conforming to the grooves 36a and 36b of the terminal ring, and the flat knitted tinsel wire ends 21b and 22b and the input terminal lugs are formed. A conductive wire 6 for wiring between 4a and 4b;
In this embodiment, two conductors 6 are used, one of which is a plus wire 6a which is a plus-side wiring conductor, and the other which is a minus wire 6b which is a minus-side wiring conductor, as shown in FIG. Insert the minus line 6b into the groove 36b in the groove 36a.
, Respectively.

At the time of this installation, one end 6 of the plus wire 6a
a1 is the end portion of the tinsel wire 21 extending to the damper tongue piece portion 14a.
The other end 6a2 is arranged so as to overlap a part of the surface of the terminal lug 4a so as to overlap a part of the surface of the terminal lug 4a, and the minus line 6b is also arranged at one end similarly to the plus line 6a. The other end 6a2 is arranged such that the portion 6b1 overlaps a part of the surface of the tinsel wire end 22b extending over the damper tongue piece 14b, and the other end 6a2 overlaps a portion of the terminal lug 4b. , Each wire end 6a1, 6a2,
4b, 6a2, the end portions of the tinsel wire 21b, 22b and the contact portions with the terminal lugs 4a, 4b are connected by soldering as shown in FIG. 4, and the sewing conductive damper 1h, the input terminal lug 4
a, 4b and the terminal ring 3 with the conductive wires 6a, 6b were obtained.

The voice coil 5 is basically the same as the conventional example except that the dimensions of the input copper foil electrode 52 provided on the coil bobbin 51 are slightly different as shown in FIG. The copper foil electrodes 52 are provided at the outer peripheral portion of the coil bobbin 51 and at positions separated by 180 ° on the center line of the circular diameter of the voice coil 5, that is, at two positions. Although FIG. 5 is a perspective view, only one copper foil electrode 52 is shown, but it is actually arranged on the opposite side of the coil bobbin 51.

The outer periphery of the coil bobbin 51 of the voice coil 5 is inserted into the inner diameter 13 of the sewing conductive damper 1h and mounted. The mounting method is exactly the same as the method of obtaining the assembly ring 7 of the conventional example. Assembling is performed using an assembling jig J as shown in FIG. The assembling jig J has a slight change in dimensions according to the shape of the terminal ring 3, but is basically the same as that of the conventional example.

The actual method of mounting the voice coil 5 will be described in detail. The inner peripheral portion of the voice coil 5 is inserted into a predetermined position J1 of the assembling jig J and installed, and then the sewing conductive damper 1h , Input terminal lugs 4a, 4b and conducting wires 6a, 6b
The attached terminal ring 3 is set at a predetermined position J2 of the set jig J. During this installation, the inner diameter portion 13 of the sewing conductive damper 1h is inserted into the outer peripheral portion of the coil bobbin 51, and the copper foil electrode 52 is sewn on the outer peripheral portion of the coil bobbin 51 as described above. Since two portions are attached to the positions corresponding to the wires 21 and 22, the end portion 2 of the flat braided tinsel wire 2 extending to the copper foil electrode 52 and the inner diameter 13 of the sewing conductive damper 1h.
The terminal ring 3 and the voice coil 5 are set on an assembly jig J in a state where the terminals 1a and 22a are combined.

In the installation state as described above, the coil bobbin 51
6 comes into contact with the copper foil electrode 52 provided on the outer peripheral portion and the flat knitted tinsel wire ends 21a and 22a reaching the inner diameter of the sewing conductive damper 1h, and the contact portion is soldered as shown in FIG. To complete the wiring connection. Since FIG. 6 is a perspective view, only the copper foil electrode 52 on one side and the soldered portion of the flat braided wire end 21a are shown, but the copper foil electrode 52 and the flat braided wire end 22a on the opposite side of the bobbin are shown. Are naturally connected by soldering.

In this state, the probe of the tester is brought into contact with the terminal lugs 41a and 41b, and the presence or absence of disconnection and the resistance value of the coil are inspected.
FIG. 6 shows the outer peripheral portion of FIG.
As shown in FIG. 5, an adhesive h is applied, the contact portion is adhered, and at the same time, the soldering portion on the outer peripheral portion of the bobbin 51 is also covered.
After the adhesive h reaches a predetermined strength, the assembly jig is completed when the adhesive h is removed from the set jig.

After inserting the spacer jig J into the inner peripheral portion of the voice coil 5 of the assembly ring 7 as shown in FIG. 7, the assembly ring 7 is mounted on the frame F. This mounting method is the same as that of the conventional example. After applying a predetermined amount of adhesive h to the damper seat F1, the voice coil 5 mounted on the assembly ring 7 is inserted into the magnetic gap 9g together with the spacer jig J.
As shown in FIG. 8, the terminal ring 3 of the assembly ring 7 is adhered to the damper seat F1, and the connection wiring between the voice coil 5 and the input terminal 4 has already been completed. And complete as a speaker.

In the second embodiment, the flat braided tinsel cords 21 and 22 arranged on the center line are arranged at a predetermined angle from the center of the damper, that is, as shown in FIG. And one end 21b of the flat knit tinsel wire 21
Is directly connected to the positive terminal lug 4a or the negative terminal lug 4b. In this embodiment, the positive terminal lug 4a is used.
When the plus side lug 4a is swaged, a part of the lug 4a is pressed against and connected to the flat knitting wire end 21b, and the other end 22b of the flat knitting yarn 22 and the remaining In this embodiment, the other terminal lug, in this embodiment, the negative terminal lug 4b is connected and connected by the conducting wire 6.

[0069]

According to the speaker connection wiring structure of the present invention, according to the first aspect of the present invention, the arrangement of the input terminal lugs provided on the assembly ring can be integrated in one place, and the connection wiring can be performed. They are arranged at appropriate intervals, and require only one flat braided tinsel wire. Therefore, the connection wiring work between the input terminal lug and the connection wiring lug provided at the end of the input lead wire can be performed smoothly because there is no change from the conventional one, and the number of work steps is not increased. Absent.

Further, only one flat braided tinsel wire is required, and the material cost and conductivity of one flat braided tinsel wire are smaller than those of the conventional conductive damper in which two flat braided tinsel wires are mounted in parallel. Since the sum of the mounting cost to the damper is larger than the sum of the material cost of the conductor and the mounting cost to the assembly ring, the difference reduces the cost.

According to the second aspect of the present invention, since the conductive damper can be used as either a sewn conductive damper or a woven conductive damper, there is an advantage that the degree of freedom in design is large.

According to the third aspect of the present invention, the number of connection points with the conductor, the flat knitting wire and the terminal lug can be minimized, so that the number of soldering points is reduced and the cost can be further reduced.

According to the fourth aspect of the present invention, since the positioning of the conductor is extremely easy, it is possible to accurately arrange the flat knitting wire end and the terminal lug at the ends of the conductor, thereby greatly reducing the wiring work. Labor saving is possible.

According to the fifth aspect of the present invention, the conductor can be processed very easily by means such as curling and the like, and a press die or the like is not required, so that the conductor can be obtained at extremely low cost.

According to the sixth aspect, since the conductor can be processed into a more complicated shape with high accuracy, it can be obtained as a part compatible with automatic assembly, and further labor saving is possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a connection wiring structure of a speaker according to the present invention, showing a state before a conductive damper and a terminal lug are attached to a terminal ring.

FIG. 2 is a perspective view showing a terminal ring with a conductive damper and a terminal lug.

FIG. 3 is a perspective view showing a state before a conductive wire is attached to a terminal ring with a conductive damper and a terminal lug.

FIG. 4 is a perspective view showing a state in which a conductive wire is attached to a terminal ring with a conductive damper and a terminal lug.

FIG. 5 is a perspective view showing a state before a voice coil is attached to a terminal ring with a conductive damper, a terminal lug, and a conductive wire.

FIG. 6 is a perspective view showing a state in which a voice coil is attached to a terminal ring with a conductive damper, a terminal lug, and a conductive wire using a jig to form an assembly ring.

FIG. 7 is a perspective view showing a state before the assembly ring is mounted on the speaker frame.

FIG. 8 is a perspective view showing a positional relationship between a state in which the assembly ring is mounted on the speaker frame, and input terminal lugs and connection wiring lugs attached to tips of input lead wires.

FIG. 9 shows another example of the assembly ring, (A) is a plan view,
(B) is a perspective view.

FIG. 10 is a perspective view showing a connection wiring structure of the speaker proposed earlier by us, showing a state before attaching a conductive damper and a terminal lug to which two flat braided tinsel wires are mounted in parallel to a terminal ring.

FIG. 11 is a perspective view showing a state before attaching a voice coil to a terminal ring with a conductive damper, a terminal lug, and a conductive wire on which two flat braided tinsel wires are mounted in parallel.

FIG. 12 is a perspective view showing an assembly ring in which a voice coil is mounted on a terminal ring with a conductive damper, a terminal lug, and a lead wire using a jig, in which two flat braided tinsel wires are mounted in parallel.

FIG. 13 shows a positional relationship between a state in which an assembling ring in which two flat braided tinsel wires are mounted in parallel to the speaker frame and a connection terminal lug and a connection wiring lug mounted at a tip end of an input lead wire. FIG.

FIG. 14 is a perspective view showing a positional relationship among a cord-like tinsel wire, an input terminal lug, and a connection wiring lug attached to the tip of an input lead wire of a speaker not using a conductive damper.

FIG. 15 is a perspective view showing a state before a conductive damper and a terminal lug in which one flat knitting tinsel wire is mounted on the center line are attached to the terminal ring.

FIG. 16 is a perspective view showing a state before the terminal ring is mounted on the speaker frame.

FIG. 17 is a perspective view showing a positional relationship between a state in which a terminal ring is mounted on a speaker frame, and input terminal lugs and connection wiring lugs attached to tips of input lead wires.

FIG. 18 is a perspective view showing another embodiment before attaching the terminal lug to the terminal ring.

FIG. 19 is a perspective view showing another configuration example of the assembly ring.

FIG. 20 is a perspective view showing a positional relationship between a state in which the assembly ring is mounted on the speaker frame, and a connection terminal lug and a connection wiring lug attached to the distal end of the input lead wire.

[Explanation of symbols]

Reference Signs List 1 conductive damper 11 corrugation 12 sticking allowance 13 inner diameter part 14 tongue piece part 14a tongue piece part (plus side) 14b tongue piece part (minus side) 1h sewing conductive damper 1i woven conductive damper 2 flat knitting wire 21 flat knitting yarn (Input line, plus side) 21a End of flat knitting yarn line (input line, plus inner diameter side) 21b End of flat knitting yarn line (input line, plus tongue piece side) 22 Flat knitting yarn line (input line 22a Flat knitting wire end (input line, minus inner diameter portion side) 22b Flat knitting yarn wire end (input line, minus tongue piece side) 23 Flat knitting yarn wire (balancer) 24 Flat knitting Kinshi wire (balancer) 3 Terminal ring 31 Tongue-shaped convex part 31a Tongue-shaped convex part (positive side) 31b Tongue-shaped convex part (minus side) 32a Square hole for input lug (positive side) 32b For input lug mounting Square hole (minor Side) 33 rib (outermost part) 34 rib (inner part) 35 notch part 36a groove part (plus side) 36b groove part (minus side) 36c groove part (others) 4 input terminal lug 4a input terminal lug (positive side) 4b Input terminal lug (minus side) 4a1 Input terminal lug caulking section (positive side) 4b2 Input terminal lug caulking section (minus side) 5 Voice coil 51 Voice coil bobbin 52 Copper foil electrode 6 Conductor 6a Conductor (positive side) 6b Conductor (Minus side) 6a1 Conductor end (positive flat knitting wire end) 6a2 Conductor end (plus input terminal lug side) 6b1 Conductor end (minus flat knitting wire end) 6b2 Conductor end (Negative input terminal lug side) 7 Assembly ring F Frame F1 Damper seat G Magnetic gap J Assembly jig L Input lead wire La connection Line for Ragupurasu lug for side Lb connecting wiring negative Sp spacer h adhesive s solder sc cream solder

Claims (6)

[Claims] 1. A flat braided tinsel wire obtained by flat knitting an arbitrary number of tinsel wires obtained by winding a copper wire foil around a fiber around a damper base material made of a woven fabric or the like impregnated with a thermosetting resin such as a phenol resin. The conductor according to the above is attached by means such as sewing or weaving, and the damper base material is formed by hot-press molding or the like, and concentric corrugation is integrally formed on the damper base material. In a speaker incorporating a conductive damper provided with a conductive portion for audio signal input by a conductor, a terminal ring made of an insulating material such as resin is attached to a sticking portion provided on an outer peripheral portion of the conductive damper, and Attach the input terminal lug to the terminal ring, connect and wire the terminal lug and the end of the conductive part extending to the outer periphery of the conductive damper with a conductive wire to form an assembly ring, and incorporate the assembly ring. A connection wiring structure for a speaker. 2. A structure of an assembly ring, wherein a voice coil is mounted on the conductive damper and extends to an input copper foil electrode portion provided on an outer peripheral portion of a coil bobbin of the voice coil and an inner peripheral portion of the conductive damper. 2. The speaker according to claim 1, wherein an end of the conductive portion is connected and a terminal wire is connected and connected between the end of the conductive portion and the terminal lug extending to the outer peripheral portion of the conductive damper. Connection wiring structure. 3. A tongue-shaped mounting portion for mounting an input terminal lug on an outer peripheral portion of the terminal ring, and at least one pair of input terminal lugs is mounted on the mounting portion and mounted on a conductive damper. The conductive portion is linearly arranged near the center line, and one end of two conductive portions extending to the outer peripheral portion of the conductive damper is directly connected to one terminal lug of the input terminal lug. 3. The speaker connection wiring structure according to claim 1, wherein a wiring is provided, and a connection is made between the other end and the other terminal lug by a conductor. 4. A conductor arranging portion comprising a groove of an arbitrary shape or the like is provided near a damper sticking portion of the terminal ring or an outer peripheral portion of the terminal ring, and the conductor is arranged and mounted on the conductor arranging portion. The speaker connection wiring structure according to claim 1, 2, or 3. 5. The speaker connection wiring structure according to claim 1, wherein the conductor is a round wire made of copper or the like and is curved in an arc shape. 6. A connection wiring structure for a loudspeaker according to claim 1, wherein the conductive wire is formed by pressing a material made of copper or the like into a flat plate or another predetermined shape. .