Category eight twisted-pair shielding cable

Abstract

The utility model discloses an eight-category twisted-pair shielding cable, which comprises four pairs of twisted-pair wires and a ground wire, each pair of twisted-pair wires is formed by twisting two copper conductors coated with insulating layers, each pair of twisted-pair wires is coated with a conductive polyethylene layer, the four pairs of twisted-pair wires and the ground wire are coated with a metal braid layer, and the metal braid layer is coated with a conductive polyethylene layer. And the metal braid layer is coated with a sheath layer. Compared with the prior art, the cable is easy to process, smooth and round in surface and good in overall softness.

Description

Technical Field

[0001] The utility model belongs to communication wire material, in particular to eight categories of twisted pair shielded cables. Background Art

[0002] Category 8 twisted pair cable is the latest generation of double-shielded network patch cord, which can support 2000MHz bandwidth and transmission rate up to 40Gb / s, but its maximum transmission distance is only 30m, so it is generally used for connecting servers, switches, patch panels and other equipment in short-distance data centers.

[0003] At present, the inner shield of the double-layer shield of Category 8 twisted-pair cables is composed of two layers of aluminum foil polyester tape, one layer is wrapped on each twisted pair, and the other layer wraps the four twisted pairs and a ground wire together. Since the aluminum foil polyester tape is thick, there are some problems with using it as the inner shielding layer: it is not easy to wrap tightly, and the efficiency of wrapping with a single twisting machine is low; the aluminum foil polyester tape after wrapping forms multiple layers of overlap, and the appearance of the cable after being cabled is seriously twisted, which affects the appearance of the finished product; the overall softness of the cable is not good, which is not convenient for laying and installation, and is not suitable for application in dynamic scenes. Utility Model Content

[0004] The utility model aims to overcome the problems existing in the processing and finished product quality of the existing eight-category twisted pair cables, and to provide an eight-category twisted pair shielded cable which is easy to process, has a smooth and rounded surface and good overall softness.

[0005] The utility model solves the technical problem by adopting a technical solution: eight-category twisted-pair shielded cable, including four pairs of twisted wires and a ground wire, each pair of twisted wires is twisted by two copper wires covered with an insulating layer, each pair of twisted wires is covered with a conductive polyethylene layer, the four pairs of twisted wires and the ground wire are covered by a metal braided layer, and the metal braided layer is covered with a sheath layer.

[0006] Optionally, the conductive polyethylene layer is coated on each pair of twisted wires by extrusion molding.

[0007] Optionally, the insulating layer is made of foamed insulating material and is coated on the copper wire by extrusion molding.

[0008] The usage and principle of the utility model are as follows: by wrapping a layer of conductive polyethylene on each pair of twisted wires, instead of the original double-layer wrapping method of aluminum foil polyester tape, the cable as a whole is made softer while maintaining the shielding effect, and the cable is more round after being cabled, which simplifies the processing method and improves the processing efficiency. The finished cable is suitable for dynamic scenes.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model is easy to process, has a smooth and round surface and good overall softness. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0011] The components in the accompanying drawings are marked as follows: twisted pair 1, ground wire 2, insulation layer 3, copper conductor 4, conductive polyethylene layer 5, metal braided layer 6, and sheath layer 7. DETAILED DESCRIPTION

[0012] Embodiment 1, below combines Figure 1 To further illustrate the utility model, the eight-category twisted-pair shielded cable includes four pairs of twisted-pair wires 1 and a ground wire 2, each pair of twisted-pair wires is twisted together by two copper wires 4 coated with an insulating layer 3, the insulating layer is made of foamed insulating material and is coated on the copper wire by extrusion molding, each pair of twisted-pair wires is coated with a conductive polyethylene layer 5, the conductive polyethylene layer is made of conductive polyethylene material, the conductive polyethylene material is a conductive composite material with polyethylene as a matrix material and a conductive filler, the conductive polyethylene layer is coated on each pair of twisted-pair wires by extrusion molding, the four pairs of twisted-pair wires and the ground wire are coated with a metal braided layer 6, the metal braided layer is formed by weaving a plurality of metal wires around four pairs of twisted-pair wires and a ground wire, and a sheath layer 7 is coated on the metal braided layer.

[0013] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A Category 8 twisted-pair shielded cable comprising four pairs of twisted wires (1) and a ground wire (2), wherein each pair of twisted wires is formed by twisting two copper conductors (4) coated with an insulating layer (3), and characterized in that: Each pair of twisted wires is coated with a conductive polyethylene layer (5), and the four pairs of twisted wires and a ground wire are coated with a metal braided layer (6), and the metal braided layer is coated with a sheath layer (7).

2. The Category 8 twisted pair shielded cable according to claim 1, characterized in that: A conductive polyethylene layer is extruded onto each twisted pair.

3. The Category 8 twisted pair shielded cable according to claim 1, characterized in that: The insulation layer is made of foam insulation material and is covered on the copper conductor by extrusion molding.

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