JPH0433211A - Shielded tape wire - Google Patents

Abstract

PURPOSE:To simplify manufacturing and to ensure electromagnetic wave shield effect by juxtaposing several conductive wires lengthwise on one insulation layer, and forming another insulation layer on the upper sides of those conductive wires, so that at least one conductive wire is exposed lengthwise, and then forming a shielding layer on the upper side of the another insulation layer. CONSTITUTION:In a shielded tape wire 2 one insulation layer 23 is stuck to the top surface of flat jaxtaposed conductive wires 10A, 10B, 10C, 10D so that a conductive wire 10D may be exposed lengthwise. Then another insulation layer 14 is attached on to the bottom surface of conductive wires 10A, 10B, 10C, 10D, and integrate them with each other. Both surfaces are covered with shield layers 20, 20 respectively and reinforcement tape 16, 16 is adhered to the bottom of terminal part of each conductive wire 10A, 10B, 10C, 10D. The shielded layer 20, consists of a complex tape, in detail, made by adhering conductive material such as aluminum mylar tape, etc., to the insulator, and is attached with conductive material facing inside. Electromagnetic shield can be thus strengthened by connecting an exposed conductive wires 10 to the ground, so that the shield layer 20 can be connected to the ground.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention involves arranging a plurality of conductive wires in parallel in the longitudinal direction between two pieces of insulating tape (plastic tape), fusing and integrating them, and This invention relates to an improvement of a shielded tape electric wire provided with a shielding layer.

[Conventional technology] In recent years, with the development of electronic devices, electronic devices have become multifunctional.
Moreover, they tend to become smaller. As a result, electronic devices are becoming more densely packaged, and it is no longer possible to use conventional connector plugs, which take up a lot of space for wiring between each board. Thin and flexible tape wires, which are arranged and integrated into a single piece and have an exposed conductor portion at the terminal end, have come to be widely used.

FIG. 8 shows a tape electric wire 25 used for such a purpose, in which four flat conductive wires 10, 10 . 10 are arranged parallel to each other at predetermined intervals, and each conductor 10 is sandwiched between two plastic tapes (insulating tapes) 13° 14 so that each conductor 10 is exposed at both ends, resulting in an integrated structure. It has become.

On the other hand, now that electromagnetic interference in electronic devices is considered a problem, it is necessary to take measures against electromagnetic interference (EMI), and it is necessary to add an electromagnetic shielding layer (shielding layer) to the tape electric wire 25 described above.
Shielded tape electric wires that have undergone this process have come into use.

Such a shielded tape electric wire 35 was developed in 1986-
It is disclosed in Japanese Patent No. 10913, and FIGS. 4 and 5
As shown in the figure, four conducting wires 10, 10.
..., a composite tape 60 in which a shield layer 22 and an insulating layer 24 are laminated is coated on the outside of a tape electric wire 25 in which insulating tapes 13 and 14 are pasted on both sides of the wire 10, with the shield layer 22 inside. It has become. And insulating layer 2
4 is peeled off to form a notch 27, and the shield layer 2 is removed.
2 is exposed, and a lead wire 29 functioning as a drain wire is soldered to this exposed portion to ground the shield layer 22.

Furthermore, the shielded tape electric wire 37 shown in FIG.
is formed, a shielding tape 150 is pasted over the entire surface of the insulating layer 13, and the shielding tape 50 and the conductive wire 10 are electrically connected at the exposed portion 13A,
By connecting this conductive wire 10 to the ground, it functions as a drain wire and is configured to obtain a shielding effect. 11 indicates an adhesive.

[Problems to be Solved by the Invention] However, since the shielded tape electric wire 35 shown in FIGS. 4 and 5 has a structure in which the lead wire 29 is externally attached to the outer surface of the composite tape 60, the conductor 10 is not exposed. By fixing pressure-welding connectors with a predetermined pitch to the parts, the lead wires 29 cannot be grounded, and the work of grounding the lead wires 29 is troublesome, and the thin insulating layer 24 of the composite tape 60
The work of peeling off a portion of the shield layer 22 to provide the shield layer 22 required skill and required many man-hours. On the other hand, the 6th
The shielded tape electric wire 37 shown in the figure has a thin insulating layer 13
Since it is necessary to manually peel off a part of the conductive wire 10 to expose the conductive wire 10 without damaging the conductive wire 10, as described above, the work requires skill and is inconvenient in that work efficiency is low.

[Object of the Invention] An object of the present invention is to improve the disadvantages of the above-mentioned conventional examples, and to provide a shielded tape electric wire that has a relatively simple structure, is easy to manufacture, and can obtain an electromagnetic wave shielding effect. .

[Means for solving the problem] Therefore, in the present invention, a plurality of conductive wires are arranged in parallel in the longitudinal direction on one insulating layer, and at least one conductive wire is arranged on the upper surface of these conductive wires along the longitudinal direction. The above object is achieved by adopting a structure in which the other insulating layer is provided so as to be exposed, and a shielding layer is provided on the upper surface of the other insulating layer.

[Example] Hereinafter, an example according to the present invention will be described based on FIGS. 1 and 3. Here, the same reference numerals are given to the same constituent members as in the above conventional example.

The shielded tape electric wire 1 shown in FIG.
B,..., the other insulating layer 23 is pasted on the top surface of 10D so that the conductor OD is exposed along the longitudinal direction,
One insulating layer 14 is attached to the lower surface of the conductor wires 10A, IOB, . OA
, reinforcing tape 1 on the bottom surface of the terminal part of l0B10D, respectively.
616 is glued together.

Specifically, the shield layer 20.20 is made of a composite tape such as aluminum mylar tape or the like in which a conductor and an insulator are pasted together, and is pasted with the conductor on the inside. By this, if the exposed conductor 10 is connected to ground,
The shield layer 20 can be connected to ground, and electromagnetic shielding can be strengthened.

Here, a method for manufacturing the shielded tube electric wire 1 constructed as described above will be explained based on FIG. 2 and FIGS. 3(a) to 3(e).

First, four conductive wires of 10A were arranged in parallel in the longitudinal direction.
, IOB, . . . , 10D. Another conducting wire 11 having the same width and length is stacked on top of the conducting wire 10D to form a two-layer structure, and each of these conducting wires 10A, 10B, . . . IOD, 11
As shown in Figure 3(a), an insulating layer 1.4.23 is placed on both sides of
and each conductor wire is 10A.

10B, ... reinforcing tape 16 on the lower surface of the exposed part of the IOD
is attached to form a tape electric wire 24 that is substantially similar to the conventional example described above.

Next, the ends of the two-layered conductive wires 10D and 11 are separated from the conductive wire 10D, as shown in FIG. 3(b). and,
By continuously separating the conducting wire 11 from the conducting wire 10D along the longitudinal direction as shown in FIG. 3(C), the conducting wire 1
The other insulating layer 23 covering the conductive wire 10D is continuously cut along the longitudinal direction by the width of the conductive wire 11 to expose the conductive wire 10D (FIG. 3(e)). A composite tape made of a conductor and an insulator bonded together, such as aluminum mylar tape, is bonded on top with the conductor facing inside.

Since the present embodiment is configured as described above, the conductor wire 10D can be easily exposed without damaging the conductor wires 10A, IOB, . The process can be simplified.

Note that the conducting wire 11 is not limited to a conductor, and may be an insulator (plastic). Further, the shield layer 20 may be provided only on the upper surface of the insulating layer 23 as long as it is electrically connected to the conducting wire 10D.

[Effects of the Invention] Since the present invention is configured as described above, it is possible to provide a shielded tape electric wire that has a relatively simple configuration, is easy to manufacture, and can obtain an electromagnetic wave shielding effect.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the shielded tape electric wire according to the present invention, Fig. 2 is a perspective view of a tape electric wire that is the basis of the shielded tape electric wire according to the present invention, and Figs. 3(a) to 3).
(e) is an explanatory diagram of the assembly process in Figure 1, Figures 4 and 5.
The figure is a configuration explanatory diagram showing a conventional shielded tape electric wire, FIG. 6 is an explanatory diagram of another conventional shielded tape electric wire,
FIG. 7 is an explanatory cross-sectional view taken along line DD in FIG. 6, and FIG. 8 is a perspective view of a conventional tape electric wire. Figure 17/ 1・・・・・・・・・・・・Te 11 with shield
......Conductor wire 14...One insulating layer 16.
・・・・・・・・・Reinforcement tape 20・・・・・・・・・
・・・・・・Shield layer 23・・・・・・・・・・・・・・・
The other insulating layer 10A to IOD...Conductor wire 12 diagram/7177 4th m 1115m 6th $70

Claims (2)

[Claims] (1) A plurality of conductive wires are arranged in parallel in the longitudinal direction on one insulating layer, and the other insulating layer is provided on the upper surface of these conductive wires so that at least one conductive wire is exposed along the longitudinal direction,
A tape electric wire with a shield, characterized in that a shielding layer is provided on the upper surface of the other insulating layer. (2) A process of arranging a plurality of conductive wires in parallel in the longitudinal direction, each consisting of two layers of at least one conductive wire stacked longitudinally on one insulating layer; a step of providing a layer, a step of peeling one of the conductive wires of the two stacked conductive wires along the longitudinal direction and cutting off the other insulating layer on the conductive wire to a predetermined width, and a shielding layer on the upper surface of the other insulating layer. 1. A method for manufacturing a shielded tape electric wire, the method comprising: providing a shielded tape electric wire.