JPH10327491A - Loudspeaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loudspeaker advantageous for disposing a wiring material for voice coil connection by mounting the wiring material for input signal supply to a voice coil mounted on a diaphragm in the state of being along a sticking margin part. SOLUTION: A mounting method to the diaphragm 1 is similar to the conventional mounting method of the diaphragm 1 and an edge 4, an adhesive (h) is applied to the edge sticking margin part of the diaphragm 1, the sticking margin parts of both of the edge 4 and the diaphragm 1 are adhered by the method of heat press or the like and mounting is performed. Since a plain weave cotton yarn line is sewn to the inner side straight sticking margin part of a conductive edge, the wiring materials 2 (plain weave cotton yarn lines 2ha and 2hb) for the input signal supply to the voice coil 3 are turned to the state of being mounted parallelly for two lines in the state of being along the straight sticking margin part of the diaphragm 1 as a result. In such a manner, on the back surface side of the diaphragm 1, the two plain weave cotton yarn lines 2ha and 2hb are distributed to the edge sticking margin part of the respective straight parts of the diaphragm 1 and mounting is performed in the state of being along the straight sticking margin part further.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loudspeaker in which wiring members are efficiently wired, and more particularly to a loudspeaker excellent in application to a thinned loudspeaker.

[0002]

2. Description of the Related Art Recently, a thin television (hereinafter, referred to as a thin TV) using a plasma display panel (hereinafter, referred to as a PDP) has been put to practical use.

As a matter of course, a speaker used in the thin TV is also required to have a thin shape. In addition, since the screen of the thin TV has been widened, and further downsizing has been promoted, the installation space for speakers arranged on both sides of the TV screen has been reduced as much as possible, and the screen has been viewed from the front. It is required that the shape of the speaker be as long and narrow as possible.

[0004] Moreover, since the thin TV is expected to be developed as a wall-mounted television taking advantage of its thin shape, it is also a necessary condition that the weight of the speaker used is as small as possible. That is, there is a demand for a thin, elongated, and lightweight speaker.

In order to cope with the above-mentioned thin, elongated, and lightweight speaker structure, a speaker structure using a repulsion magnetic circuit suitable for thinning and weight reduction which has already been proposed by us previously (Japanese Patent Application No. Hei 8 No. -151859: At the time of this application, unpublished application) and in order to cope with an extremely elongated shape, this is also a multi-point drive type (one piece) using a repulsion magnetic circuit having a speaker structure that we previously proposed. A set of a voice coil and a magnetic circuit is provided at a plurality of locations with respect to
(Speaker type in which two diaphragms are driven in multiple places)
Speaker structure was adopted.

On the other hand, a loudspeaker called a track type or an oval type used in a conventional TV or the like is generally called a moving coil type as shown in FIG. , And a yoke Y made of a soft magnetic material such as iron, and a plate P are assembled to form a magnetic circuit, a magnetic flux is obtained in a magnetic gap G provided in the magnetic circuit, and the voice coil 3 is placed in the magnetic gap G. The voice coil 3 is arranged to apply a voice current to the voice coil 3, and the movement of the voice coil 3 responsive to the magnetism is transmitted to the diaphragm 1 (cone) via the voice coil bobbin 31.

Accordingly, the voice coil bobbin 31 is adhered to a hole provided in the center of the concave portion of the diaphragm 1 (cone), generally a portion called the neck portion 12, and the spider 6 supporting the voice coil bobbin 31 Alternatively, a suspension called a damper 6 or the like is arranged below and adhered to the lower portion of the cone neck 12, but when a reduction in thickness is required, in addition to the depth of the diaphragm 1 (cone), the damper 6 Voice coil bobbin 31 arranged below
It is a well-known fact that the stroke dimension is an obstacle to thinning.

Further, the conventional general speaker is provided with a hole (neck portion 12) for mounting the voice coil 3 at the center of one diaphragm 1 (cone) as described above.
2 is a so-called single-point drive structure in which the outer peripheral portion of the voice coil bobbin 31 is adhered to and driven by one voice coil 3. Therefore, in order to promote the reduction in thickness, the diaphragm 1 (cone) must be as shallow as possible and ideally flat.

However, the shallow diaphragm 1 (cone), a so-called shallow cone, is more structurally resistant to a single point (local) excitation from the neck 12 than a generally used deep cone. Weak to. Therefore, the shallow cone 1
Is excited by the voice coil 3, the cone resonates at a specific frequency, causing unnecessary nodal movements, causing peaks and dips in the characteristics, and it is well known that the performance is reduced.

In addition, as described above, it is additionally required that a speaker used in a thin TV has an extremely slender shape when viewed from the front, and in response to the request, a further slender shape is used instead of the shallow cone shape. Will be added. Therefore, assuming that the depth dimension of the diaphragm 1 (cone) is the same, the gradient of the diaphragm 1 on the short side becomes large and the strength of the diaphragm 1 on the long side is increased instead of increasing the strength against vibration. Further, the portion becomes further shallower than the conventional shallow diaphragm 1 and the occupation ratio of the shallow portion on the long side increases, so that the strength against vibration is further insufficient.

In other words, the strength of the diaphragm 1 (cone) is such that even if a part of the diaphragm 1 is improved, resonance occurs from other places. A further inappropriate shape will be added to the shape that is likely to cause unnecessary joint movement only with the cone shape,
It is also well known that extremely large peaks and dips tend to occur on the characteristics, and the deterioration of the performance is further increased.

Therefore, various speaker structures have been proposed to make the speaker structure suitable for the elongated shape. For example, as shown in FIG. 10, the diaphragm 1 and the voice coil 3 are formed in an oblong shape generally called a track shape, and the length of one side of the oblong shape is as long as possible. The diaphragm 1 is driven by an oval voice coil 3 to form an elongated speaker, or as shown in FIG. 11, two diaphragms 1 of a conventional oval speaker are integrally formed in a continuous shape. It is a multi-point drive type speaker or the like that drives one diaphragm 1 with two voice coils 3 and a magnetic circuit having a magnetic gap G.

These elongated loudspeakers form a magnetic gap G by a certain method in the same manner as a conventional general loudspeaker, and the movement of the voice coil 3 installed in the magnetic gap G is oscillated via a voice coil bobbin 31. This is a structure for transmitting to the plate 1. Therefore, as described above, a suspension called a spider 6 or a damper 6 for supporting the voice coil bobbin 31 is required, and when a reduction in thickness is required, the stroke of the voice coil bobbin 31 supported by the damper 6, Alternatively, the basic form in which the stroke of the damper 6 hinders the reduction in thickness has a disadvantage that it does not change at all.

Further, it can be easily understood that the wiring structure of the conventional multi-point drive type speaker shown in FIG. 11 is limited to a structure driven by two voice coils 3 and a magnetic circuit. That is, the input terminal lug is disposed between the two voice coils 3, that is, substantially at the center of the speaker, and the voice coil 3
The input wiring member 2 (string-like tinsel wire 2 s) is arranged between the input terminal lug 5 and the voice coil bobbin 31. In other words, the cord-like tinsel wire 2s is symmetrically arranged from the vicinity of the center of the speaker, and the weight distribution with respect to the diaphragm 1 and the balance of compliance and the like are cleverly maintained.

However, the voice coil 3 and the magnetic circuit
When the number of the input terminal lugs is larger than the number, the arrangement balance of the input wiring members 2 (string-like tinsel wire) is lost.
In addition, the wiring between the voice coils 3 becomes further complicated and extremely complicated. The slender track-shaped multi-point drive type loudspeaker that we have already proposed is about 35% to 50% smaller than the conventional loudspeaker in reducing the thickness dimension, that is, in reducing the thickness.
It has been found that a% reduction is possible. However, since the speaker proposed by us is also of a multi-point drive type, the wiring structure between the input terminal lug 5 and the voice coil 3 naturally includes elements that are more complicated than those of the single-point drive type speaker. I have.

Further, if the elongated shape is made as long as possible, the dimensions in the width direction are restricted, so that the input terminal lug 5 is naturally arranged without any room for the longer side of the speaker frame F. An arrangement location is required on the short side. Moreover, by narrowing the width (short side)
The ratio of the width of the voice coil 3 to the width of the edge 4 in the width is increased.

Since the increase in the ratio necessarily extends to the dimension of the diaphragm 1, the wiring space has a great influence. That is, the wiring of the multipoint drive type speaker proposed by us is formed by laying or attaching wiring materials 2 such as voice coil wires (terminal wires) 32 and tinsel wires 2 on the diaphragm 1 (surface). Therefore, the wiring space on the diaphragm 1 between the input terminal lug 5 and the voice coil 3 is extremely limited.

Further, in response to such a state in which the wiring space is limited, by applying the conventional wiring method, the string-shaped tinsel wire 2 is arranged between the diaphragm 1 and the frame F. Even if the tinsel wire 2 oscillates and the tinsel wire 2 jumps, a dimension must be secured so that it does not hit the diaphragm 1, and as a result, the dimension in the depth direction increases, contributing to thinning. And the disadvantage that wiring complexity is greatly increased.

An object of the present invention is to provide a speaker which is advantageous in disposing a wiring member for connecting a voice coil. In particular, a speaker which has many advantages in application to a thin, elongated, multipoint drive type speaker. To provide.

[0020]

According to the present invention, there is provided a loudspeaker in which a diaphragm (1) is supported on a supporting body (F) at peripheral portions (11a, 11b) thereof.
Allowance part (11b, 41) between the suspension and the suspension (4)
Attention was paid to b). The bonding margins (11b, 41b) require a minimum adhesive strength so that the suspension (4) does not peel off with respect to the amplitude of the diaphragm (1), so that the peripheral edges (11a, 11b) of the diaphragm (1) are required. ) Requires a pasting allowance having a width of generally about 3 to 10 mm. The attachment margins (11b, 41b) are attached (attached) to the original edge 4 regardless of the large ratio of the area occupied by the diaphragm (1), particularly when the diaphragm (1) is elongated. There is no other purpose of use, and when viewed from the wiring design on the diaphragm (1), the dead space is completely wasted. In the present invention, the wiring member (2) for supplying an input signal to the voice coil (3) mounted on the diaphragm (1) is used in order to effectively use the pasting portion (11b, 41b). (11b,
41b) was adopted as the wiring structure mounted.

The speaker according to the present invention has the following (a) to (d). (A) A diaphragm (1) which is supported by a support (F) at a peripheral portion (11a, 11b) via a suspension (4) and has a voice coil mounting hole (b) (b) A diaphragm (1) and a suspension (4) ), And extends along the pasting portion (11b, 41b).
(c) Wiring material (2) attached to b, 41b) (c) Attached to voice coil mounting hole on the outer peripheral side and pasting portions (11b, 41b) at both ends (32)
(3) The voice coil (3) which is drawn out and connected to the wiring member (2). Magnetic circuit (RM) installed

The wiring member (2) is attached to the attachment portions (11b, 41b) along the attachment portions (11b, 41b) of the diaphragm (1) and the suspension (4), and the voice coil (3) Are pulled out and connected to the wiring member (2), so that the wiring member (2) can be arranged without preparing a special arrangement space for the wiring member (2). It can be carried out. In addition, wiring material (2)
Is attached to the sticking portions (11b, 41b), so that the jumping phenomenon of the wiring member (2) can be avoided.

The speaker according to the present invention has the following (a) to (d). (A) A diaphragm (1) supported by a support (F) via a suspension (4) at a peripheral portion (11a, 11b) and provided with a plurality of voice coil mounting holes in substantially one row (b) For a voice coil A pair of wiring members (2) extending along both sides of the row along the row of the mounting holes (c) (c) Attached to each voice coil mounting hole on the outer peripheral side and pasted portions (11b, 41) at both ends (32)
A voice coil (3) drawn out toward b) and connected to the wiring member (2) (d) A gap is formed between the voice coil (3) and the inner peripheral side of the voice coil (3) to form an inside of the voice coil mounting hole. Circuit (RM) installed in

The pair of wiring members (2) are a magnetic circuit (RM)
And both ends (32) of each voice coil (3) extending along and on opposite sides of the row of the set of voice coils (3).
Is connected to the wiring members (2) on both sides, so that only one pair of wiring members (2) is required for a plurality of sets of the magnetic circuit (RM) and the voice coil (3), and the structure is simplified. . Also,
Further, the mounting position of the wiring member (2) is changed to the bonding margin (11b, 41b) between the diaphragm (1) and the suspension (4).
And a magnetic circuit (RM) and a voice coil (3)
Of the set extending in the column direction (11b, 41)
In the case of b), it is possible to omit the layout space dedicated to the wiring member (2) and to avoid the jumping phenomenon of the wiring member (2).

According to the loudspeaker of the present invention, the wiring member (2) is a wiring member obtained by knitting an arbitrary number of conductive wires formed by winding a copper foil wire around a fiber into a flat knit shape.

According to another speaker of the present invention, further,
The wiring member (2) extends continuously along the pasting portions (11b, 41b) of the diaphragm (1) and the suspension (4) and the y6 of the suspension (4), and is fixed to the suspension (4) by sewing. Have been.

According to another speaker of the present invention, further,
The vibrating plate (1) has a vertically elongated shape having an aspect ratio of at least 3: 2 or more, and the wiring member (2) extends along the margins (11b, 41b) extending in the longitudinal direction. Are there.

The wiring member (2) has a vertically long shape in which the length is longer than the width, and the length: width ratio is at least 3: 2, and the length can be longer than the width. The connection between the wiring member (2) and the voice coil (3) can be made smooth by extending the wiring member (2) along the sticking portions (11b, 41b) extending in the vertical direction.

According to another speaker of the present invention, further,
Two or more sets of the voice coil (3) and the magnetic circuit (RM) are arranged on the longitudinal center line of the diaphragm (1).

Voice coil (3) and magnetic circuit (RM)
Are arranged on the vertical center line, a symmetrical structure is obtained.

According to another speaker of the present invention, further,
The magnetic circuit (RM) includes a center plate (P) made of a soft magnetic material and a center plate (P) with the same poles facing each other.
And a magnet (M) fixed to both sides of the voice coil (3). The magnetic circuit (RM) has the center plate (P) at the same position as the voice coil (3) in the axial direction.

[0032]

1 to 8 show an embodiment of the present invention.
As described below, the reference numerals of the common parts are the same as those of the conventional example. The outline of the speaker according to the present embodiment will be described with reference to FIG. 1. The maximum external dimensions are 49.6 mm in width and 22 in length.
Thin and slender multipoint drive for driving a diaphragm 1 having a slender shape of 8 mm and a depth (depth) of 15 mm and having a substantially flat and slender shape with three voice coils 3 and a repulsion magnetic circuit RM. Type speaker.

The speaker edge 4 (FIG. 4) is an edge (hereinafter, referred to as a conductive edge 4e) formed by mounting a conductor along the roll 42 and the like arranged on the outer peripheral portion. In detail, the woven fabric used as the base material of the conductive edge 4e is a 30-count single-twisted cotton yarn for both the warp and the weft, and is woven at a weaving density of 60 yarns / inch both vertically and horizontally, and weighs 100 g to 1 g.
A cotton cloth of 10 g / m ^ 2 (^ 2 means a square, that is, m ^ 2 means square m) was obtained, and the cotton cloth was impregnated with a resin solution having a phenol concentration of 24%. SBR
After coating with a solution obtained by mixing a synthetic rubber such as a synthetic rubber, and then drying the rubber-coated cotton cloth with hot air, the rubber-coated cotton cloth is cut into a width of about 80 mm with a slitter, and a roll-shaped rubber coat generally used frequently is used. An edge substrate B is obtained.

A bronze wire (hereinafter, referred to as a flat braided wire) formed by winding a copper wire foil around a fiber as a conductive material at a predetermined position on the base material in an arbitrary number and a flat knitted shape.
This is referred to as a flat knitting line 2h. ) From the center line of the woven fabric with a thread w called Conex # 40 as shown in FIG.
Two pieces (2 ha, 2 hb) were sewed in parallel at positions distributed to 3 mm (pitch: about 26 mm). The flat braided tinsel wire 2h is a tin alloy copper wire having a bus diameter of 0.1 mm and a width of 0.32 mm.
It was processed into a 0.027 mm thick foil, and was wound into a 200-denier para-aramid fiber in a single layer at 22 ± 2 times / cm in a single layer. It was knitted in a flat knit shape at 0.45 ± 0.82 mm / time.

The center line of the base material sewn with the conductor (plain knitted tinsel wire 2h) is aligned with the center line of the molding die as shown in FIG. 2, and the molding die D heated to about 200 ° C. At about 6
When the pressing time is about 5 seconds, the phenol resin or the like impregnated into the base material is hardened, a predetermined roll 42 shape is formed at a predetermined position on the base material, and a sewn flat plate is formed. Naturally, the braided tinsel wires 2ha and 2hb are also shaped along the roll 42, and the roll-molded product with the flat knitted tinsel wire 2h is shifted to a trimming process, and unnecessary portions of the inner and outer portions are removed. Was cut off to obtain a conductive edge 4e (FIG. 3).

The conductive edge 4e obtained through the trimming process
Has an outer diameter of 202 mm in length and 48 mm in width, and has a track shape in which the long sides and widths are connected by an arc having a radius of 24 mm.
A bonding portion 41 (FIG. 4) having a width of about 3 mm, which is to be bonded to the frame F, has an arc portion (hereinafter, referred to as an outer arc pasting portion 41c) and a straight portion (hereinafter, an outer straight pasting portion 41d). ), And the sticking allowance portion 41 is provided.
A roll part 42 having a width of 6 mm and a cross-sectional radius of 3 mm is formed further inward, and a bonding margin part 41 having a width of 3 mm for bonding to the diaphragm 1 further inward is formed on the arc part (hereinafter referred to as an inner arc bonding margin). The stitching portion 41 having a width of 4 mm forms a straight portion (hereinafter referred to as an inner straight stitching portion 41b).
It is written. ) Is provided.

As described above, two flat braided tinsel wires 2h are sewn in parallel at a predetermined interval (about 26 mm).
As shown in FIG. 3 and FIG. 4, the flat knitting tinsel wire 2ha, 2hb is linearly attached to the surface of each of the inner straight stitching margins 41b.
It will be attached one by one, and each flat knitting brocade wire 2h
The flat knits a and 2hb extend from the inner straight pasting portion 41b to the outer arc pasting portion 41c through the end of the inner arc pasting portion 41a and the roll portion 42, and reach one outer arc pasting portion 41c. Only the ends 2hae and 2hbe of the tinsel wire 2h are extended to a length of about 6 mm, and the flat braided tinsel wire 2h
a and 2hb are wiring members 2 for supplying an input signal to the voice coil 3.

The conductive edge 4e is attached to the diaphragm 1. When the details of the diaphragm 1 are described, the outer dimensions are 29.4 m in width.
m, length 183.4 mm, thickness (depth) 3 mm, ends of long sides are connected by an arc having a radius of 14.7 mm, and has a track shape generally referred to from the front, The diaphragm is made of pulp as a main material. As shown in FIG. 4, a hole 12 for mounting a voice coil is provided on the center line of the diaphragm 1, the diameter of the hole 12 is 17 mm, and the position is the center of the diaphragm. One place and two places 60 mm apart from the hole at the center are provided at a total of three places, and a width of about 4 m for attaching an edge to the outer peripheral portion on the back side of the diaphragm 1 as shown in FIG.
An attachment portion 11 of m is provided.

The mounting method on the diaphragm 1 is the same as the conventional mounting method of the diaphragm 1 and the edge 4, and an adhesive h (hatched portion shown in FIG. 4) is applied to the edge sticking portion 11 of the diaphragm. The bonding margins 11 and 41 of both the edge 4 and the diaphragm 1 are attached by a method such as hot pressing. As described above, the flat braided tinsel wire 2h is provided on the inner straight pasting portion 41b of the conductive edge 4e.
As a result, the wiring material 2 (the flat knitting tinsel wire 2ha, 2hb) for supplying the input signal to the voice coil 3 becomes 2 along the straight pasting portion 11b of the diaphragm 1 as a result. It will be in a state of being mounted in parallel.

That is, in the case of the present embodiment, since the edge pasting portion 11 is provided on the back side of the diaphragm 1, the pasting portion 41 of the edge 4 is naturally adhered to the back side of the diaphragm 1, At the time of bonding, the opposite surface on which the flat knitting tinsel wire 2h is sewn is bonded, so that as shown in FIG. The two flat braided tinsel wires 2ha and 2hb are distributed to 11b, and are mounted along the straight-line pasting portion 11b.

The voice coil 3 is mounted on the diaphragm 1 having the conductive edge 4e. In the case of the present embodiment, the mounting jig J is used for mounting the diaphragm 1 and the voice coil 3.
The voice coil 3 was mounted by using. In the following description, the mounting jig J for the voice coil 3 has three pole portions J1 for installing the voice coil 3 at three predetermined positions as shown in FIG. Then, as shown in FIG. 5, the inner ends of the voice coils 3 are inserted, and the ends 32 (winding start 32a, winding end 32b) of each voice coil wire are set in a predetermined direction.

Further, when the hole 12 for mounting the voice coil 3 of the diaphragm 1 is installed in the outer peripheral portion of the voice coil 3 as shown in FIGS. 5 and 6, it goes without saying that the two voice coils are parallel. Wiring material 2 (flat knitting wire 2h)
It will be in the state arranged inside. Further, after installing the diaphragm 1, the respective voice coil wire ends 32a, 32b are laid on the diaphragm 1 and, as shown in FIG.
It is guided to a predetermined position of the flat braided tinsel wire 2h disposed on the sticking margin 11b, and the respective ends 32a and 32b are soldered to perform connection wiring. In the case of the present embodiment, the ends of the respective coil wire ends are connected. One side 32a was connected to the plus side flat knitting wire 2ha, and the other end 32b was connected to the minus side flat knitting wire 2hb.

Further, the diaphragm 1 is provided with an adhesive reservoir 13 having a slope of about 45 degrees toward the outside around the hole 12 for mounting the voice coil 3, so that each adhesive reservoir is provided. 13, the adhesive h is applied to the crawling portion of the coil wire 32 and the solder portion s, and after the adhesive h has hardened to reach the required strength, the diaphragm 1 is taken out from the assembly jig J. The voice coil 3 and the diaphragm 1 are adhesively bonded, and the voice coil 3 and the wiring to the input signal supply wiring member 2 (plain knitting wire 2h) are completed and the voice coil 3 and the conductive edge 4e are provided. Is completed.

The voice coil 3 and the diaphragm 1 with the conductive edge 4e were bonded to a frame F as shown in FIG. The frame F of the present embodiment is made of ABS resin containing glass fiber, has an outer diameter of 228 mm in length, 49.6 mm in width, and 15 mm in depth (depth). Pole part F1 with a diameter of 5 mm and a height of 14 mm at a total of three places distributed to 60 mm in the length direction from
Are provided integrally.

Further, two flanges F3 for mounting an input terminal lug as shown in the figure are provided in one of the flange portions F2 for mounting the frame F provided on the short side of the frame F. The hole has a square hole of 2.5 mm on one side penetrating from the surface of the flange portion to the back surface, and a counterbore portion having a diameter of 8 mm and a depth of 1 mm is provided concentrically with the square hole on the flange surface side. The pitch of the holes is the same as the sewing pitch (26 mm) of the flat braided tinsel wire 2h attached to the conductive edge.

As shown in FIG. 7, an adhesive h is applied to the edge bonding portion of the frame F, and although not shown in the illustration, after inserting a coil positioning jig into the pole portion, the voice coil 3 and the The inner peripheral portion of the voice coil 3 of the diaphragm 1 with a conductive edge is inserted into the outer peripheral portion of the jig. When the voice coil 3 is inserted, the diaphragm 1 is turned over as shown in FIG.
The flat knitting in which the wiring portion with the wiring material 2 (flat knitting wire 2h) is directed toward the bottom of the frame, the roll portion 42 of the conductive edge 4e is in an up-roll state, and is outside the outer arc pasting portion 41c. End 2hae, 2hb of Kinshi Line 2h
e, is inserted in the direction of the hole F3 for attaching the input terminal lug 5.

When the inner periphery of the voice coil 3 is inserted into the outer periphery of the jig in this state, the margins 41b and 41c provided on the periphery of the edge 4 come into contact with the adhesive, and
When pressure is applied to the b and 41c (defined as applying pressure and fixing), the conductive edge 4e is adhered to the frame F while the voice coil 3 is arranged at a predetermined position of the frame F, and 41c is attached to the sticking portion. A part of the spread flat braided wire 2h is adhered to the frame F, but as shown in FIG. 7, the flat braided wire ends 2hae, 2h for connecting to the input terminal lugs 5 are formed.
be is arranged so as to close the counterbored portion of the mounting hole F3 of the input terminal lug 5 by about half. The copper foil is exposed on both the front and back surfaces of the flat knitted tinsel wire ends 2hae and 2hbe of the present embodiment.

In this state, the input terminal lug 5 is attached. The terminal lug 5 is an input terminal lug frequently used in a conventional general speaker, and is generally called a Faston terminal lug. A 2.5 mm square, 3.5 mm long, and 0.5 mm thick side wall is placed at a predetermined position on the lug as shown in the figure. A cylindrical caulking portion is provided, one of which is shown as a plus lug and the other is a minus lug.

The caulking method also employs a terminal lug 5 on a conventional terminal board.
This is a method exactly the same as the method of mounting, wherein the swaging portion 51 is inserted into the mounting square hole from the back surface of the frame F as shown in FIG.
The input terminal lugs are crimped to the frame F by bending each side so as to divide the sides into four equal parts as shown in the figure while breaking the corners at the top.

The ends 2ha, 2hb of the flat braided tinsel wire are soldered to a part of the quartered caulking portion 51 of the input terminal lug to complete the connection wiring between the terminal lug 5 and the end of the flat braided tinsel wire 2h. Then, naturally, the connection wiring to the voice coil 3 is also completed. Further, the coil positioning jig, which is not shown in the explanatory view, is pulled out, and as shown in FIG. 8, three repulsions are formed on the pole portion of the frame F in a state where the diaphragm 1, the voice coil 3, the conductive edge 4e, and the terminal lug have been mounted. Magnetizing circuit RM
Was attached by a predetermined method to complete a multi-point drive type speaker.

In the present embodiment, the space of the pasting portion 11 (41) of the diaphragm 1 (edge 4), which has not been used conventionally, is effectively used, and the conductive edge 4e is used.
Due to the structure, the thickness of the speaker is not increased, and the width of the diaphragm 1 is narrowed, so that a space for arranging the wiring member 2 with sufficient reliability on an extremely limited diaphragm is secured. In addition, a wiring structure that requires only a simple wiring operation can be obtained.

Moreover, by disposing the voice coil 3 inside the two wiring members 2 arranged in parallel on the diaphragm 1, even if a large number of voice coils 3 are arranged, for example, three Even if more than one voice coil is placed,
Since the connection wiring between the ends 32a and 32b of the voice coil wires and the wiring member 2 can be easily performed without changing the arrangement of the wiring member 2, the arrangement balance of the wiring member 2 is broken as in the conventional example, There are no disadvantages such as the necessity of a large input terminal lug 5, and even if the number of voice coils 3 is increased more than in the present embodiment, it is possible to easily cope with the problem.

That is, in the case of the present embodiment, the three voice coils 3 are arranged on one diaphragm 1 to form a para-connection wiring structure as described above. When a speaker of a shape is requested,
For example, assuming that four or more voice coils 3 are arranged on the diaphragm 1, there is no problem as to the para wiring structure as in the present embodiment.

The wiring material 2 is a flat braided tinsel wire 2h, and has a structure extending from the edge roll portion 42 to the margin portion 41b of the diaphragm at the edge 4 and along the margin portion 41b. This makes it possible to easily apply the technology of the sewn conductive edge, which has been invented and improved in the past, and to sew it to the linear pasting portion 41b. This is even more convenient for the work of mounting the wiring member 2 (the flat knitting wire 2h), and it is extremely easy to arrange and mount the wiring member 2 (the flat knitting wire 2h) at the narrow sticking portion.

In the case of the present embodiment, the diaphragm 1 has an elongated shape and is a multi-point drive type speaker using a plurality of repulsion magnetic circuits. The present invention can be applied to a speaker using the magnetic circuit described above and the diaphragm 1 of the speaker having an elongated shape, and can be applied not only to a multipoint drive type speaker but also to a single point drive type speaker.

As described above, this is an elongated multi-point drive type speaker, and in particular, a plurality of voice coils 3 as in this embodiment.
In the loudspeaker in which the wiring members 2 are arranged substantially linearly, it is very easy to arrange the wiring members 2 in parallel. And voice coil wire terminals 32a, 32
By arranging both on the front surface side or the back surface side of the diaphragm 1, the wiring work can be simplified and the number of work steps can be greatly reduced.

[Brief description of the drawings]

1A and 1B are a front view and a cross-sectional view of a thin and elongated multi-point drive type speaker using the wiring structure of the present invention.

FIG. 2 is a perspective view showing a state in which a flat knitting wire is sewn to an edge base material in a process of producing a conductive edge used for the speaker of the present invention, and a state in which it is molded with a mold.

FIG. 3 is a perspective view showing a state after edge molding and after trimming in the process of producing a conductive edge according to the present invention.

FIG. 4 is a perspective view showing a state in which a conductive edge according to the present invention is mounted on a diaphragm and a wiring member is mounted along a diaphragm attaching portion.

FIG. 5 is a perspective view showing a mutual state of a diaphragm with a conductive edge, a voice coil, and a jig for mounting a voice coil of the present invention.

FIG. 6 is a perspective view showing the assembled state of the voice coil and the diaphragm with a conductive edge from the back surface side, in which the diaphragm with a conductive edge and the voice coil of the present invention are assembled on a voice coil mounting jig.

FIG. 7 is a perspective view showing the assembled state of the voice coil and the diaphragm with conductive edges of the present invention from the front side, showing a state immediately before bonding the diaphragm to a frame, and after bonding.

FIG. 8 is a perspective view showing a state immediately before the repulsion magnetic circuit is mounted on a guide pole portion provided on the frame after the diaphragm having been assembled with the voice coil and the diaphragm with conductive edges of the present invention is bonded to the frame, and showing the completion of the mounting. FIG.

FIG. 9 is a front view and a cross-sectional view of a conventional elongated speaker used in a TV or the like.

FIG. 10 is a front view and a sectional view of another conventional elongated speaker.

11A and 11B are a front view and a cross-sectional view of another conventional elongated speaker.

[Description of Signs] 1 Vibration plate 11 Vibration plate pasting portion 11a Arc pasting portion 11b Straight pasting portion (pasting portion, peripheral portion) 12 Neck portion 2 Wiring material 2h Flat knitting wire 2ha Flat knitting wire line plus side 2hb Flat Knitting Negative Wire Negative Side 2hae Flat Knitting Nippon Wire Negative Side End 2hbe Flat Knitting Nippon Wire Negative Side End 2s String-like Kinshi Nippon Wire 3 Voice Coil 31 Voice Coil Bobbin 32 Voice Coil Wire End (both ends) 32a Voice Coil Wire End Part plus side (winding start side) 32b Voice coil wire end part minus side (winding end side) 4 Edge (suspension) 41 Edge pasting part 41a Inner arc pasting part 41b Inside straight pasting part (pasting part) 41c Outside Arc pasting margin 41d Outside straight pasting margin 42 Roll part 4e Conductive edge 5 Input terminal lug 51 Lug caulking part 6 Damper B D Ledge base D Molding die F Speaker frame (support) F1 Pole F2 Flange F3 Input terminal lug mounting hole G Magnetic gap J Voice coil mounting jig J1 Voice coil mounting pole M Magnet P Plate Y Yoke RM Repulsion magnetic circuit (magnetic circuit) h Adhesive s Soldering part w Thread

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI H04R 9/06 H04R 9/06 Z

Claims (7)

[Claims] (A) a diaphragm (1) which is supported by a support (F) via a suspension (4) at a peripheral portion (11a, 11b) and has a mounting hole for a voice coil;
(B) The wiring member (2) extending along the bonding margin (11b, 41b) between the diaphragm (1) and the suspension (4) and attached to the bonding margin (11b, 41b). And (c) a voice coil which is mounted on the voice coil mounting hole on the outer peripheral side and which is pulled out toward the margins (11b, 41b) at both ends (32) and connected to the wiring member (2). (3) and (d) a magnetic circuit (RM) disposed inside the voice coil mounting hole with a gap provided between the voice coil and the inner peripheral side of the voice coil. A speaker characterized by the above-mentioned. 2. (a) a diaphragm (1) supported by a support (F) via a suspension (4) at a peripheral portion (11a, 11b) and provided with a plurality of voice coil mounting holes substantially in a line; (B) a pair of wiring members (2) extending along both sides of the row along the row of the voice coil mounting holes;
(C) At the outer peripheral side, each of the voice coil mounting holes is attached, and at both ends (32), the pasting portion (11) is attached.
b, 41b) and a voice coil (3) connected to the wiring member (2) and (d) a gap is formed between the voice coil (3) and the inner peripheral side of the voice coil (3). A magnetic circuit (R) disposed inside the voice coil mounting hole
M). 3. The wiring material according to claim 1, wherein the wiring material is a wiring material in which a conductive wire formed by winding a copper foil wire around a fiber is arbitrarily woven in a flat knit shape. Speaker. 4. The wiring member (2) includes the diaphragm (1).
And a sticking portion (11b, 4) of the suspension (4).
4. The loudspeaker according to claim 3, wherein 1b) and y6 of the suspension (4) extend continuously and are fixed to the suspension (4) by sewing. 5. The vibration plate (1) has a shape in which the length-to-width ratio is at least 3: 2 or more in a vertically long state, and the wiring member (2) has a pasting portion (11b) extending in a vertical direction. , 4
5. The method according to claim 4, wherein the extension extends along 1b).
The described speaker. 6. A combination of the voice coil (3) and the magnetic circuit (RM) is provided in two or more sets on a longitudinal center line of the diaphragm (1). The speaker according to claim 1. 7. The magnetic circuit (RM) includes a center plate (P) made of a soft magnetic material and magnets (M) fixed to both sides of the center plate (P) with the same poles facing each other. The magnetic circuit (RM) includes the center plate (P) in the axial direction thereof and the voice coil (3).
The position is equal to:
The speaker according to any one of the above.