JPH0737437A - Pressure adhering shield wire - Google Patents

Abstract

PURPOSE:To make a shield wire compact and improve the productivity and economical properties of the wire by making the distance between insulated wires and the distance between the insulated wire and a conductor of a drain wire smaller than the distance between contacts of a pressure contact connector. CONSTITUTION:A stranded soft copper wire coated with tin is used for a conductor 1 of an insulated electric cable and a conductor 4 of a drain wire, and electron-crosslinked noncombustible polyethylene is used for the insulator 2 to coat the conductor 1. The distance between the wires 3 and the distance between a wire 3 and the conductor 4 are made smaller than the distance of the contacts of a pressure contact connector and thus the cable is made to be compact. A copper coated aluminum polyester tape is used for a shield tape 5 and the distance P1 between the wires and between a wire and the conductor 4 is made a prescribed width and the outer circumference of the coated wires in parallel is longitudinally coated with the tape 5. One type of the mutually adhered shield wire can be sufficient to fit the pressure contact, connectors with different contact distance, so that the manufacturing cost can be lowered and productivity and economical properties are improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-contact shielded wire used by attaching a pressure-contact connector to an end thereof.

[0002]

2. Description of the Related Art The structure of a conventional pressure contact shielded wire will be described with reference to the drawings. FIG. 2 is a cross-sectional view showing an example of the structure of the pressure contact shielded wire. That is, the conductors 1 and 1 of the signal line are covered with the insulators 2 and 2, respectively, and the insulated cores 3 and 3 arranged in parallel with the interval P2 are the drain wire conductors 4 arranged in parallel. And P2, and the insulating cores 3 and 3 and the drain wire conductor 4 are arranged in parallel at equal intervals corresponding to the intervals of contacts of a pressure contact connector (not shown). These two insulated wire cores 3 and 3 and the drain wire conductor 4 arranged in parallel are covered by a copper-coated aluminum polyester tape 5 for shielding vertically provided so as to enclose the conductors 4 and a bridge portion 7 therebetween. It At this time, the copper-coated aluminum polyester tape 5 for shielding is formed of an insulating wire core 3, 3 and the conductor 4 for drain wire and the bridge portion 7 between them by an adhesive provided in a zebra shape on the copper tape side of the shield tape 5. Covered closely. The outer periphery of the copper-coated aluminum polyester tape 5 for shielding is extrusion-coated with a jacket 6 of an insulator to form a pressure-contact shielded wire. The outer diameter D1 of the drain wire portion 8 when the drain wire is covered with the jacket 6 at this time is
The outer diameter D2 is equal to the outer diameter D2.

FIG. 3 is a top view showing a state of terminal pre-processing for press-connecting the conventional press-contact shielded wire having the above-mentioned structure to the press-connecting connector. That is, the press-connecting connector 9 connected to the end of the press-connecting shielded wire has the insulating wire cores 3, 3
And contact 1 that contacts the drain wire conductor 4
0, and the insulating wire cores 3 and 3 and the cover pressing portion 11 that prevent the drain wire portion 8 from coming off. The press-contact shielded wire has a slit 13 formed on the bridge 7 side of the drain wire portion 8 by a cutting machine when press-connecting to the press-connecting connector 9 so that the insulation wire cores 3 and 3 are covered with the jacket 6 and the shield copper-coated aluminum. After the polyester tape 5 is stripped, the polyester tape 5 is pressure-contacted to the pressure-connecting connector 9 for connection.

[0004]

As described above, the conventional insulation displacement shielded wire has the insulation cores 3 and 3 and the drain wire portion 8 according to the pitch P of the contacts 10 of the insulation displacement connector 9 as shown in FIG. Since there is a gap between the contacts 10 of the press-connecting connector 9 and a gap between the contacts 10 of the press-connecting connector 9 are different from each other, the press-connecting shielded wire is adjusted to the pitch P of the contacts 10 of the press-connecting connector 9. There was a problem that had to be produced and used.

The object of the present invention has been made in view of the above point, and the productivity and economical efficiency that the same insulation displacement shielded electric wire can be used even if the contact pitch of the insulation displacement connector is different. To provide an excellent pressure contact shielded wire.

[0006]

SUMMARY OF THE INVENTION According to the present invention, one or a plurality of insulating wire cores in which a conductor is covered with an insulator and a conductor for a drain wire are arranged in parallel at equal intervals, and the outer circumference thereof is covered by a metal tape for shielding. In a shielded cable for insulation displacement connection with an insulator on top of it, make the space between the insulation core conductors and between the insulation core conductor and the drain wire conductor shorter than the contact space of the insulation displacement connector to make it compact. This is a crimping shielded wire characterized in that Further, in the process of mounting the pressure-contact shielded wire on the pressure-contacting connector, the terminal-processed pressure-contacted shield wire is spread by a comb-shaped jig to be pressure-contacted and connected.

[0007]

[Operation] By making the distance between the insulated wire core and the bridge portion between the insulated wire core and the drain wire conductor shorter than the distance between the contacts of the pressure contact connector, the pressure contact shielded wire can be made compact and the wiring space in the electronic device can be reduced. It can be minimized.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing the structure of the pressure contact shield wire of the present invention. That is, the insulator 2, around the conductor 1, 1.
Insulated cores 3 and 3 covering 2 are conductors for drain wire 4
The copper-coated aluminum polyester tapes 5 for shielding, which are arranged in parallel with each other and are vertically attached to the outer periphery thereof, are provided.
An insulation 6 is extrusion-coated on the outer periphery of the insulation-bonded shielded wire. Here, P1 and P1 are the distances between the conductors 1 and 1 of the insulated wire cores 3 and 3 and the insulated wire core 3 and the drain wire conductor 4.

FIGS. 4 (A) and 4 (B) are top views showing a terminal processing state for press-contacting the press-contact shielded wire of the present invention. First, as shown in FIG. 4 (A), an end portion of the insulation displacement shield wire on the side of the connection portion is slit by a cutting machine, and jackets 6 and 6 around the insulated wire cores 3 and 3 and a copper-coated aluminum polyester tape for shielding are provided. 5 shows a state in which 5 is stripped. Subsequently, as shown in FIG. 4B, when the pressure contact connector is pressure-contacted, the pitch P of the pressure contact connector 9 is
(See FIG. 3) Comb-shaped jig 1 provided for matching
The insulating wire cores 3 and 3 and the insulating wire core 3 and the drain wire portion 8 are expanded by 2 and are connected to the contact 10 of the press contact connector 9 by pressing.

As the conductors 1 and 1 of the insulated wire cores 3 and 3 and the drain wire conductor 4, tin-plated annealed copper twisted wires are used. The insulators 2 and 2 are made of electron-crosslinked flame-retardant polyethylene, and cover the conductors 1 and 1, respectively. At this time, the outer diameters of the insulated wire cores 3 are set to 0.
96 mm. A copper-coated aluminum polyester tape is used as the shield tape 5, and the insulating wire cores 3 and 3 and the distance P1 between the insulating wire core 3 and the drain wire conductor 4 are set to 1.35 mm, and the outer circumferences arranged in parallel are shielded tape 5. Are formed vertically. Vinyl is used for the jacket 6 covering this, and the outer diameter of the drain wire portion 8 is formed to be equal to the outer diameter of the insulating cores 3, 3. As a result, the finished outer diameter (major diameter) was 1.3 mm more compact than the conventional pressure contact shielded wire.

In the above example, the description has been made on the case of the two insulated wire cores 3 forming the signal line, but the same applies to the case of two or more insulated wire cores 3.

[0012]

As described above, the pressure-shielded shielded wire of the present invention has the conventional pressure-insulation shielded by making the intervals between the insulated core conductors and between the insulated core conductor and the drain wire conductor shorter than the spacing of the pressure-insulated connector. It was possible to make it more compact than the shielded wire. Further, even if the distance between the press contact connectors is different, one press contact shield line can be used, so that the manufacturing cost can be reduced accordingly. Furthermore, since the electronic device can be made compact, the price can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the structure of a pressure contact shield wire according to an embodiment of the present invention,

FIG. 2 is a cross-sectional view showing the structure of a conventional pressure contact shielded wire,

3 is a top view showing a state in which an insulation displacement connector is connected to the insulation displacement shielded wire of FIG. 2;

4 (A) and 4 (B) are top views showing a processed state when the pressure-contact shielded wire of the embodiment is connected to a pressure-contact connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 conductor 2 insulator 3 insulated wire core 4 conductor for drain wire 5 shield tape 6 jacket 7 bridge part 8 drain wire part 9 crimping connector 10 contact 11 coating retainer 12 comb-shaped jig

Claims (2)

[Claims] 1. One or a plurality of insulated wire cores obtained by coating a conductor with an insulator and conductors for a drain wire are arranged in parallel at equal intervals, and the outer periphery thereof is vertically attached by a metal tape for shielding, and then the insulator is attached. In the covered pressure-shielding connection shield wire, the insulation wire core conductors and the insulation wire core conductor and the drain wire conductor are made compact by making the space between the insulation wire core conductor and the drain wire conductor shorter than the contact space of the pressure welding connector. Shielded wire. 2. In the process of mounting a pressure welding shield wire on a pressure welding connector, the insulation core and the drain wire portion of the pressure welding shield wire processed at the end are spread with a comb-shaped jig to perform pressure welding connection. The pressure contact shield wire according to claim 1.