JPH10125138A - Combination structure for shielded cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove irregularities on the common outermost insulating sheath without requiring to bind multiple shield cables with tapes by combining multiple shield cables so that shield layers are kept in contact with each other, and integrally covering them with an insulating sheath. SOLUTION: The outer periphery of two power cables 1, 1 each constituted of a central conductor 1a and an insulating material 1b is covered with a braided or tape-wound shielding layer 2 to form a shielded cable 11 power, and the outer periphery of two signal cables 5, 5 each constituted of a central conductor 5a and an insulating material 5b is covered with a braided or tape-wound shield layer 6 to form a signal shield cable 12. The shielding layers 2, 6 of the shielded cables 11, 12 are kept in contact with each other via a drain wire 13. Multiple cables 11, 12 are combined, then their outer periphery is integrally covered with an insulating sheath 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination structure of shielded wires in which a plurality of shielded wires can be combined in a simple shape with good appearance.

[0002]

2. Description of the Related Art For example, a wire harness for an automobile is
A battery (power supply) and various electric components are connected by electric wires, and a plurality of electric wires are bundled and bound with a tape or the like.

[0003] As a wire harness as described above,
As shown in FIG. 2, a shielded power supply wire 4 in which the outer circumference of a shield layer 2 of two power supply wires 1 and 1 is covered with an insulating sheath 3, and a shield layer of two signal wires 5 and 5 6 and a signal shielded wire 8 whose outer periphery is covered with an insulating sheath 7 are bundled and bound so that the insulating sheaths 3 and 7 are in contact with each other. In addition, drain wires 9 and 10 are respectively arranged inside the shield layers 2 and 6 in the shield wires 4 and 8, respectively.

In the above-mentioned wire harness, the power wires 1 and 1 and the signal wires 5 and 5 are bundled and bound, and the power wires 1 and 1 become noise sources and become signal wires 5 and 5. Power lines 1,1 so that they do not adversely affect
It is necessary to provide the shield layers 2 and 6 on the signal wires 5 and 5, respectively.

[0005]

However, since the above-mentioned wire harness is merely a bundle of the power supply shield wire 4 and the signal shield wire 8 and bound with a tape or the like, the outer shape is uneven. There is a problem that the appearance deteriorates.

In addition, since it is necessary to peel and insulate the insulation sheaths 3 and 7 at the end portions of the shielded electric wires 4 and 8, respectively, the terminal workability is poor and the processing cost is high. Since the insulating sheaths 3 and 7 and the drain wires 9 and 10 are required for every 4 and 8, there is a problem that the material cost increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a shielded electric wire in which a plurality of shielded electric wires can be combined in a simple shape with good appearance, and processing and material costs can be reduced. It is an object to provide a combination structure.

[0008]

In order to solve the above-mentioned problems, the present invention relates to a method of combining a plurality of shielded electric wires so that each shield layer is in contact with each other and integrally covering the outer periphery thereof with an insulating sheath. It is intended to provide a combined structure of shielded electric wires characterized by the following.

According to the present invention, by combining a plurality of shielded electric wires so that each shield layer is in contact with each other and integrally covering with an insulating sheath, it is not necessary to bind with a tape or the like as in the conventional case, and the common use is also possible. The outermost insulating sheath does not become uneven.

Further, when attaching the terminals, only the outermost insulating sheath to be shared may be peeled off.

According to the second aspect of the present invention, if the respective shield layers are in contact with each other via the drain wire, the insulating sheath and the drain wire are not required for each shielded wire as in the related art.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, a shielded electric wire for power supply is formed by covering the outer periphery of two electric wires for power supply 1 and 1 comprising a central conductor 1a and an insulator 1b with a braided or tape wound shield layer 2. 11 and a signal shielded wire 12 in which the outer peripheries of two signal wires 5 and 5 composed of a center conductor 5a and an insulator 5b are covered with a braided or tape-wrapped shield layer 6; The shield layers 2 and 6 of the shielded electric wires 11 and 12 are in contact with each other via one drain wire 13.

When the drain wire 13 is not used, the shield layers 2 and 6 are in direct contact with each other.

As described above, the plurality of electric wires 11, 1
After combining the two, the outer periphery is integrally covered with an insulating sheath 14.

In the above-described combination structure of shielded electric wires, the shielded electric wires 11 and 12 are combined so that the respective shield layers 2 and 6 are in contact with each other, and then integrally covered with an insulating sheath 14, whereby the conventional structure can be obtained. As described above, it is not necessary to bind the shielded wires with tape or the like, and the outermost insulating sheath 14 also serves as a binding tool for the shielded wires 11 and 12, so that the binding operation is not required.

Further, since each of the shielded wires 11 and 12 can be covered with the insulating sheath 14 in a substantially circular cross section, the insulating sheath 14 is not uneven and the outer shape is simplified and the appearance is improved.

Further, when the terminals are attached, only the outermost insulating sheath 14 shared by the shielded wires 11 and 12 needs to be peeled off, so that the terminal workability is improved and the processing cost is reduced.

Further, unlike the conventional case, the insulating sheath and the drain wire are not required for each of the shielded wires 11 and 12, so that the processing cost and the material cost are reduced.

In the above embodiment, the shielded electric wire 1 for power supply is used.
1 is combined with the shielded electric wire for signal 12, but the present invention can be applied to a combination of only the shielded electric wire 12 for signal or a combination including a coaxial cable.

[0021]

As is apparent from the above description, the shielded wire combination structure of the present invention is such that a plurality of shielded wires are combined so that the respective shield layers are in contact with each other, and the shielded wires are integrally covered with an insulating sheath. Therefore, it is not necessary to bind them with a tape or the like as in the related art, and the outermost insulating sheath to be used is not uneven, so that the outer shape is simplified and the appearance is improved.

Further, when attaching the terminals, only the outermost insulating sheath to be used in common need be peeled off, so that the terminal workability is improved and the processing cost is reduced.

If each shield layer is in contact with each other via a drain wire as in claim 2, an insulating sheath and a drain wire are not required for each shield wire as in the conventional case, so that the processing cost and the material are reduced. Costs are lower.

[Brief description of the drawings]

FIG. 1 is a sectional view of a combined structure of shielded wires of the present invention.

FIG. 2 is a sectional view of a conventional combination structure of shielded wires.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power supply wire 2 Shield layer 5 Signal wire 6 Shield layer 10 Power supply shield wire 11 Signal shield wire 13 Drain wire 14 Insulation sheath

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Inventor Hiroki Hirai 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi Harness Research Institute, Inc.

Claims (2)

[Claims] 1. A combination structure of shielded wires, wherein a plurality of shielded wires are combined so that respective shield layers are in contact with each other, and the outer periphery thereof is integrally covered with an insulating sheath. 2. The shielded wire combination structure according to claim 1, wherein said shield layers are in contact with each other via a drain wire.