JP3336554B2 - Speaker Wiring Structure - 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 wiring structure, and more particularly to a speaker wiring structure having a conductive damper.

[0002]

2. Description of the Related Art A damper provided with a conductive portion along a corrugation, that is, a speaker using a conductive damper, uses a flat braided tinsel wire obtained by braiding a required number of tinsel wires into a flat braid as a conductive member. Has been put into practical use for the first time by us. Conventionally, as a wiring structure for connecting and wiring the outer end portion of the conductive portion and the input lead wire, a conventional wiring structure shown in FIG.
The wiring structure shown in FIG.

In FIG. 1, reference numeral 1 denotes a conductive damper, 6 denotes an input lead wire, 5 denotes a speaker frame, and a sticking portion formed on an outer peripheral portion of the conductive damper 1 is mounted on a damper seat provided on the speaker frame 5. You. A tongue-shaped convex terminal mounting portion 52 for mounting an input terminal is provided at a predetermined position on the outer peripheral portion of the damper seat. The input terminal 53 is generally provided with a square eyelet on the terminal mounting portion 52. Attached through.

The terminal lugs 54 a and 54 b provided on the fiber substrate of the input terminal 53 and the end of the flat braided tinsel wire 2 extending on the terminal mounting portion 52 are connected by soldering. As a structure for connecting and wiring the lugs 54a, 54b and the input lead wires 6, terminals 62a,
62b is attached by caulking or the like.
a and 62b are inserted and connected to the terminal lugs 54a and 54b, respectively.

We have proposed various speakers using the above-described conductive damper and various wiring structures thereof (for example, Japanese Patent Application Nos. 5-353940 and 6-337496). FIG. 11 shows an example of this. Here, the terminal lugs 54a and 54b cover the ends of the flat braided tinsel wire 2 extending over the tongue-shaped convex portions formed on the outer periphery of the conductive damper 1.
The terminal lugs 54a, 54b and the ends of the flat braided tinsel wire 2 are soldered. The method of connecting and wiring the input lead wire 6 to the terminal lugs 54a and 54b is the same as the method shown in FIG.
This is a method in which 2a and 62b are inserted into terminal lugs 54a and 54b to connect and wire.

As described above, the connection wiring method using the faston terminals has advantages such as a reduction in man-hours, simplicity of repair, and prevention of erroneous wiring as compared with the soldering wiring method. Widely used.

[0007]

However, in this wiring method, it is extremely difficult to position the input lead wire 6 and the speaker and the like, and at present, it is extremely difficult to perform automatic wiring. The operation of inserting the Faston terminal at the time is usually performed manually.

When such terminal insertion work is continued for a long time, the fingertips of the operator become painful, and it is often impossible to maintain the work accurately. Generally, in order to prevent erroneous wiring of terminal insertion, a wide and narrow difference is provided between the plus side faston terminal and the minus side faston terminal. In particular, as shown in FIG. 10 and FIG. This phenomenon becomes remarkable when the faston terminal 62b on the side is inserted.

That is, the narrower Faston terminal 62b has a smaller contact area between the fingertip and the Faston terminal 62b, and the force applied at the time of insertion is wider than that of the Faston terminal 62a.
Therefore, the weight per unit in the contact area of the fingertip is increased, and the fingertip of the operator tends to be painful.

In particular, recent audio speaker systems often use a plurality of speakers, such as two-way and three-way speakers, and most of the speaker input terminals use the faston terminals. The operation of inserting the faston terminal as described above increases, and the sustainability of the operation in this connection wiring becomes more difficult.

Therefore, in order to make the terminal form in which unnecessary weight is not applied to the fingertip, for example, the terminal lugs 54a, 54
The thickness of the Faston terminal 62
It is conceivable that the frictional resistance at the time of insertion of the terminal lugs 54a, 62b is reduced by reducing the frictional resistance at the time of insertion of the terminal lugs 54a, 62b.
Since the frictional force between the faston terminals 54a and the faston terminals 62a and 62b is weak, the faston terminals 62a and 62b
a, 54b. For this reason, after the wiring work, for example, the Faston terminal may fall off from the terminal lug during transportation of the speaker system, and a market complaint may occur.

On the other hand, it is conceivable to use a tool such as lead pliers or to create a dedicated jig or the like for the work, but this makes the work more complicated and increases the number of wiring work steps. Therefore, at present, there is only a means for workers to wear gloves and put a rubber sack or the like on the fingertips to reduce the load on the fingertips. As a result, the accuracy of the work is extremely lost, so that a mastery of the work is required.

Although the pain at the fingertips can be reduced to some extent by using gloves or finger cots as described above, there is a limit to maintaining the wiring work for a long time, and it is necessary to alternate the wiring work. Occurs. Therefore, there are drawbacks such as the need to secure replacement personnel who are skilled in this wiring work.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wiring structure of a speaker which can facilitate wiring work and reduce labor and labor of the worker at the time of wiring work.

[0015]

In order to solve this problem, the present invention relates to a damper made of a woven cloth or the like and a required number of tinsel wires knitted along a corrugation of the damper to form a flat knit. A speaker provided with a conductive damper comprising a conductive portion formed of a flat braided tinsel wire formed in the above manner, wherein 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. A wiring portion for connecting an input lead wire to an end of the flat braided tinsel wire extending to an outer portion of the conductive damper, further comprising: a mounting portion for mounting a housing on the terminal ring; The connector lug attached to the end of the wire is held by a housing made of an insulating material such as resin, and the housing is attached to the attachment portion so that the housing can be connected to a terminal. Fixed to the grayed is for fixedly connecting wire being in contact with an end portion of the flat knitted tinsel wire and the connector lugs.

[0016]

In the wiring operation, when the housing is mounted on the mounting portion provided on the terminal ring, the connector lug held by the housing comes into contact with the end of the flat braided tinsel wire and is connected and wired. The weight applied to the fingertip can be greatly reduced. In addition, since the plus side and the minus side are connected at the same time and the number of insertions is one, wiring work is easy and extremely effective means for labor saving of wiring work, thereby greatly reducing the burden of wiring work. it can.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a speaker wiring structure according to the present invention will be described with reference to FIGS. The conductive damper 1 is basically the same as the conductive damper that has been conventionally used. A conductive damper 1 is prepared by immersing a cotton cloth for a damper in a solution in which the ratio of phenol and methanol is diluted at a ratio of about 1: 4.5. A cotton cloth was impregnated with a phenol resin, and the solvent was further evaporated to remove the tackiness of the resin.

On the other hand, a tin 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
Plain knitting wire 2 knitted into a flat knit at 2 mm / times, about 2.2 mm in width, 0.44 mm in thickness, and 0.48 Ω / m in electric resistance
And two flat knitted tinsel wires 2 are arranged in parallel at a position of 10.5 mm (pitch: about 21 mm) from the center line of the damper base material and sewn with a thread called Conex # 40. This was hot-pressed to form a corrugation 11 having a concentric circular shape and a radial connection, so that the flat knitted tinsel wire 2 was along the corrugation 11.

Next, unnecessary portions were removed by a punch press, the outer shape was adjusted, and a conductive damper 1 having a flat knitting tinsel wire 2 as shown in FIG. 2 was obtained. In this case, the shape and dimensions are such that the outer diameter is 78 mm, and the coil bobbin joint (commonly referred to as the inner
The diameter of 13) is 26.3 mm, and seven corrugations 11 having a depth of about 2.4 mm are arranged at a pitch of about 2.8 mm from the vicinity of the inner diameter, and about 4 m on the outer periphery.
m is provided, and the pasting portion 1 is further provided.
A tongue-like convex portion 1 having a width of 29 mm and a length of 7.7 mm outside the outer surface
4 is provided at two places with center distribution as shown in the figure,
The flat knitted tinsel wire end 21 extends over the tongue-shaped convex portion 14. The width of the flat knitted tinsel wire 2 is about 3 mm by press molding.

The above-mentioned Japanese Patent Application No. Hei 6-337, which we previously proposed.
No. 496, a terminal ring 3 made of an insulating material such as a resin is used. This terminal ring 3 is a ring having an inner diameter of 69.6 mm and an outer diameter of 79.2 mm. Thus, a tongue-shaped convex portion 31 having a width of 29.3 mm and a length of 8.3 mm is provided, and the tongue-shaped convex portion 31 is separated from the center line of the terminal ring 3 and attached to the conductive damper 1. 21mm, the same size as the mounting pitch of the knitting wire 2
Flat braided tinsel wire 2 at the pitch and near the center of the tongue-shaped convex portion 31
A concave portion 34 as shown in the figure is disposed at a predetermined position, and a tapered portion is provided at an end so that the connector lug 42 can be easily inserted.

Further, above the center line of the tongue-shaped convex portion 31,
10. width for mounting the connector housing 41
Mounting part 3 consisting of a tongue-shaped convex part of 2 mm and length of 10 mm
2 and a tapered portion is provided at the end of the mounting portion 32 so that the housing 41 can be easily inserted. The tapered portion is located at a position 5 mm from the end and on the center line of the terminal ring 3. A hole 33 is arranged. The thickness of the terminal ring 3 is basically 2 mm, and the material is made of ABS resin in this embodiment.

A rubber adhesive 3 is applied to the inner peripheral portion of the terminal ring 3.
6 is applied for a predetermined amount and dried for a predetermined time to evaporate the adhesive solution. Then, the sticking portion 12 of the conductive damper 1, the terminal ring 3, and the tongue-shaped convex portion 14 of the conductive damper 1 are connected to the terminal. Arranged in accordance with the tongue-shaped convex portion 31 of the ring 3, hot-pressed from above the pasting portion 12 of the conductive damper 1 to thermally reactivate the adhesive 36, and the pasting portion 12 and the terminal ring 3
After bonding the conductive damper 1 and the terminal ring 3 together, the voice coil 7 and the conductive damper 1 with the terminal ring 3 are arranged on a set jig 74, and the inner diameter of the conductive damper 1 is attached to the outer periphery of the coil bobbin 71. The part 13 is inserted and assembled.

An input copper foil electrode 72 is attached to the outer periphery of the coil bobbin 71 at two predetermined intervals corresponding to the flat knitting wire 2 of the conductive damper 1.
And the flat knitted tinsel wire end 21 extending over the inner diameter portion 13 of the conductive damper 1 and inserted into the coil bobbin 7 as shown in FIG.
1 is soldered to a contact portion between the copper foil electrode 72 provided on the outer peripheral portion and the flat knitted tinsel wire end portion 22 extending to the inner diameter portion 13 of the conductive damper 1. Note that the assembly jig in this embodiment is not described because the explanation drawing becomes complicated and difficult.

In the above-described state, the flat knitted tinsel wire end 21
After contacting the probe of the tester to check for disconnection and the resistance value of the voice coil 7, the outer periphery of the coil bobbin 71 and the entire periphery of the contact portion with the inner diameter portion 13 of the conductive damper 1 are inspected in the same manner as before. Apply the adhesive 73 as shown in FIG.
The contact portion is adhered and the adhesive 73 also covers the soldered portion on the outer periphery of the coil bobbin 71. After the adhesive 73 reaches a predetermined strength, the adhesive 73 is pulled out from the set jig 74 and completed as an assembly ring R, as shown in FIG.
The assembly ring R was mounted on the speaker frame 5 to complete a speaker.

The input lead wire 6 is a so-called vinyl parallel wire which is generally used, and the conductor is generally a metal wire made of copper or the like and has a conductor diameter of about 0.18.
mm, an aggregate of 20 conductors, and the conductors were covered with an insulating coating (in the present embodiment, vinyl chloride resin) and finished to an outer diameter of about 2.6 mm to form two parallel lines.

The connector lug 42 shown in FIG. 6 is manufactured by pressing a thin plate made of a metal having good conductivity such as a copper alloy, and the leading end of the connector lug 42 is drawn, bent, A cutting process or the like is performed to form a shape as shown in the figure.

The insulating film at the tip of the input lead wire 6 is peeled off by about 5 mm to expose the conductive material, and the caulked portion of the connector lug 42 is connected to the tip of the input lead wire 6.
It is attached by caulking to the exposed conductive material. This mounting form is similar to the conventional Faston terminal 62 shown in FIG.
This is the same as the form in which a and 62b are attached to the tip of the input lead wire 6, are widely used widely, have no problem in quality, and have high reliability.

The housing 41 is made of an injection-molded resin, and as shown in FIGS. 5 and 6, square holes 44 are formed at two locations with the same pitch dimensions as the flat braided tinsel wire 2 of the conductive damper 1. And an insertion portion 43 corresponding to the attachment portion 32 provided on the terminal ring 3 is formed.

The connector lugs 42 are attached to the respective square holes 44, and the distal end (contact portion) of the connector lug 42 is provided at the distal end of the square hole 44, and the input is provided at the rear end of the square hole 44. The caulked portions of the lead wires 6 are arranged respectively. As a result, the connector lug 42 at the distal end of the input lead wire 6 is held by the housing 41 and becomes a housing H with a lead wire. As shown in FIG. The connection wiring becomes possible by mounting.

Since the insertion portion 43 is provided at the bottom near the center line of the housing H with a lead wire,
The terminal ring mounting portion 32 is inserted into the insertion portion 43 so as to be inserted. At this time, a cutout portion is provided on the lower surface side of the square hole 44 in which the connector lug 42 is disposed, so that the distal end portion (contact portion) of the connector lug 42 is exposed. Two connector lugs 42
8 comes in contact with the two flat braided tinsel wires 2 extending to the outermost portion of the conductive damper 1 as shown in FIG. 8, and when the housing H with a lead wire is further pushed in, the contact portion of the connector lug 42 is formed. When it deforms from the tip and first rides on the tapered portion of the ring terminal 3 and then pushes the housing H with the lead wire to a predetermined final position, the contact portion of the connector lug 42 is placed on the recess 34 provided in the terminal ring 3. The contact portion is returned to the original shape by springback and pressed against the flat knitting silk wire 2 in a shape along the concave portion 34 of the tongue-shaped convex portion 31 together with the flat knitting yarn wire 2 as shown in the figure. Connection wiring is completed.

In order to prevent the housing H with a lead wire from falling off, a holding portion 45 made of a hook piece with an engagement claw as shown in FIG. When the housing H with the lead wire is pushed into the final position, the engaging claw of the holding portion 45 is engaged with the square hole 33 formed in the mounting portion 32 of the terminal ring 3 as shown in the sectional view of FIG. On the holding portion 4
Unless an external force equal to or more than the predetermined force of 5 is applied, it does not move from the mounting position. Further, the holding portion 45 can easily release the lock by pushing the tip of the hook piece by releasing the engaging claw from the square hole 33, and pull out the housing H with the lead wire from the mounting portion 32 of the terminal ring 3. It is possible.

In the above embodiment, the holding portion 45 has the above-described structure. However, since the terminal ring 3 is made of resin, as shown in FIG. It is also possible to provide a holding portion 35 made of a hook piece on the side of the.

Further, at present, the shape of the housing 41 does not match the shape of the conventional speaker frame 5 that does not use the terminal ring 3, so that it cannot be used for a conventional speaker. By optimizing and standardizing, and further optimizing and standardizing the shape of the conventional speaker frame 5 without using the terminal ring 3, and designing the shapes of the connector lug 42 and the housing 41 according to the standard shape, A connector that can be used for a speaker can be manufactured. Note that a diaphragm and the like are omitted in the perspective view of the explanatory diagram for easy explanation.

With the above-described configuration, when the housing 41 is attached to the mounting portion 32 provided on the terminal ring 3 at the time of wiring work, the connector lug 42 held by the housing 41 is Since the connection wiring is made in contact with the end, the load on the fingertip of the operator can be greatly reduced.

Further, since the plus side and the minus side are connected at the same time and the number of insertions becomes one, the wiring work is easy and extremely effective means for saving labor in the wiring work.
The burden at the time of wiring work can be greatly reduced.

Furthermore, when configured as examples, terminal lugs 54a to the terminal ring 3 as in the prior art,
Since there is no need to attach the 54b (see FIG. 10) , the number of steps for manufacturing the assembly ring R is greatly reduced, and as a result, there is an advantage that the number of steps for assembling the speaker is significantly reduced. Further, the terminal mounting step in assembling the speaker is a very difficult step in automating speaker production. However, since there is virtually no terminal mounting step, it is extremely advantageous for automating all steps of speaker production. Since the terminal ring 3 is made of resin, a complicated shape can be obtained very easily by injection molding or the like, and the holding portion 35 for fixing the housing can be added using a resin material. .

[0037]

According to the wiring structure of the speaker of the present invention,
When the housing is mounted on the mounting portion provided on the terminal ring at the time of wiring work, the connector lug held by the housing comes into contact with the end of the flat braided tinsel wire and is connected and wired, so that the weight applied to the fingertip of the operator Can be greatly reduced. Also, since the plus side and the minus side are connected at the same time and the number of insertions is one, wiring work is easy and extremely effective means for labor saving of wiring work, and the burden on wiring work is greatly reduced. Can be.

[Brief description of the drawings]

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

FIG. 2 is a perspective view before assembling a conductive damper and a terminal ring.

FIG. 3 is a perspective view of an assembly ring in which a conductive damper, a terminal ring, and a voice coil are assembled.

FIG. 4 is a perspective view of an assembly ring and a speaker frame before assembly.

FIG. 5 shows the shape of the housing, (A) is a top view,
(B) is a side view, (C) is a front view.

FIG. 6 is a perspective view of an assembling process of a housing with a lead wire.

FIG. 7 is a cross-sectional view of a step of mounting the terminal ring and the housing with lead wires, particularly a cross-sectional view showing a holding portion.

FIG. 8 is a cross-sectional view of a step of mounting the terminal ring and the housing with a lead wire, particularly a step of mounting a connector lug to the terminal ring.

FIG. 9 is a perspective view showing another embodiment of the wiring structure of the speaker according to the present invention.

FIG. 10 is a perspective view showing an example of a wiring structure of a conventional speaker.

FIG. 11 is a perspective view showing another example of the wiring structure of a conventional speaker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conductive damper 11 Corrugation 12 Adhering part 13 Damper inner diameter part 14 Tongue-shaped convex part 2 Flat braided tinsel wire 3 Terminal ring 31 Tongue-side convex part 32 Mounting part 41 Housing 42 Connector lug 43 Insertion part 44 Square hole 45 Holding part Reference Signs List 5 speaker frame 51 damper seat 6 input lead wire 7 voice coil R assembly ring H housing with lead wire

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04R 9/02 103 H04R 9/02

Claims (2)

(57) [Claims] 1. A conductive damper comprising: a damper made of a woven cloth or the like; and a conductive portion made of a flat knitting wire, which is mounted along a corrugation of the damper and formed by knitting a required number of tinsel wires into a flat knit shape. A speaker provided with a terminal ring made of an insulating material such as a resin attached to a sticking portion provided on an outer peripheral portion of the conductive damper, and a flat braided tinsel wire extending to an outer portion of the conductive damper. In a wiring structure in which an input lead wire is connected to an end portion, an attaching portion for attaching a housing to the terminal ring is provided, and a connector lug attached to a distal end portion of the input lead wire is made of an insulating material such as a resin. And the housing is fixed to the terminal ring by attaching the housing to the mounting portion, and the connector lug and the end of the flat braided tinsel wire are fixed. A wiring structure, characterized in that connection wiring is fixed in a state of contact with a part. 2. The wiring structure of a speaker according to claim 1, wherein a holding portion for preventing the housing from falling off is provided on the terminal ring.