Eight-pair CAT5E double-shielding network communication cable

Abstract

The utility model discloses an eight-pair CAT5E double-shielding network communication cable comprising a sheath layer, the sheath layer is internally provided with eight pairs of core wire cables, the eight pairs of core wire cables are distributed in an inner layer and an outer layer, and an inner layer aluminum-plastic composite belt layer is arranged between the inner layer of core wire cables and the outer layer of core wire cables; three pairs of core wire cables are arranged in the inner layer, and inner layer filling ropes are filled among the three pairs of core wire cables. Five pairs of core wire cables are arranged on the outer layer, and outer layer filling strips are arranged among the five pairs of core wire cables; the core wire cable and the outer filling strip are wrapped by an outer aluminum-plastic composite belt layer, the outer layer of the outer aluminum-plastic composite belt layer is wrapped by a metal braid layer, and the outer layer of the metal braid layer is wrapped by a sheath layer. According to the utility model, through the arrangement of a unique line pair arrangement structure, the problem of easy crosstalk between line pairs of a conventional eight-pair structure is solved, and the design difficulty and the production difficulty are greatly reduced. And the stability of batch production is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of communication cables, in particular to an 8-pair category 5e double-shielded network communication cable. Background Art

[0002] In the prior art, 8-pair Category 5e communication cables are basically cables with a 1+7 structure.

[0003] The cable structure 1+7 structure has a central pair of cables that needs to avoid crosstalk with the surrounding 7 pairs of cables, which is very difficult. In addition, each pair of core cables in the surrounding 7 pairs of cables also needs to avoid crosstalk with the surrounding three pairs. The surrounding 7 pairs of cables need to avoid misalignment, which will cause poor crosstalk in the wire pairs. In actual production, due to the fluctuation of the pay-off tension, it is very easy to cause misalignment of the surrounding 7 pairs of core cables due to tension fluctuations during mass production, resulting in poor crosstalk. To this end, we propose an 8-pair Category 5e double-shielded network communication cable. Utility Model Content

[0004] The utility model aims to provide an 8-pair Category 5e double-shielded network communication cable to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an 8-pair Category 5e double-shielded network communication cable, comprising a sheath layer, wherein a total of 8 pairs of core wire cables are arranged in the sheath layer, and the 8 pairs of core wire cables are distributed in an inner and outer layer, and an inner layer of aluminum-plastic composite tape layer is arranged between the inner and outer layers of the core wire cables; a total of 3 pairs of the inner layer core wire cables are arranged, and an inner layer of filling ropes are filled between the 3 pairs of the core wire cables; a total of 5 pairs of the outer layer core wire cables are arranged, and an outer layer of filling strips are arranged between the 5 pairs of the core wire cables; the core wire cables and the outer layer of the filling strips are coated by an outer layer of aluminum-plastic composite tape layer, the outer layer of the outer layer of the outer layer of the aluminum-plastic composite tape layer is coated with a metal braided layer, and the outer layer of the metal braided layer is coated with a sheath layer.

[0006] Preferably, the core wire cables include conductors and insulating layers, each pair of the core wire cables is provided with two conductors, and the outer layer of each conductor is coated with an insulating layer.

[0007] Preferably, the inner layer of the inner aluminum-plastic composite tape layer is provided with a non-metallic polyester tape, and the non-metallic polyester tape is coated with a ground wire.

[0008] Preferably, a tensile rope is provided at the center of the outer filling strip.

[0009] Preferably, the outer filling strip is made of polyolefin filling strip, and the tensile rope is made of polyester fiber rope.

[0010] Preferably, the metal braided layer is a tinned copper wire braided layer, and the sheath layer is a polyolefin elastic sheath.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By adopting the 3+5 structure, the central 3 pairs of core cables are isolated from the outer 5 pairs of core cables by aluminum-plastic metal tapes for electromagnetic interference. Only the crosstalk between the central three pairs of cables and the crosstalk between the outer 5 pairs of core cables need to be considered; the outer 5 pairs of core cables are separated by filling strips. Even if the core cables and filling strands jump during the cabling production process, the arrangement order of the core cables will not be misaligned, resulting in crosstalk.

[0013] 2. The inner aluminum-plastic composite belt is in contact with the ground wire. When in use, the ground wire is pulled out and connected to the outer braided belt to ensure effective grounding of the inner metal composite belt.

[0014] 3. Polyester fiber with good tensile strength is set in the middle of the filling strip to prevent the filling strip from being stretched thin during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] In the figure: 1. Sheath layer; 2. Metal braided layer; 3. Outer aluminum-plastic composite tape layer; 4. Conductor; 5. Insulation layer; 6. Inner aluminum-plastic composite tape layer; 7. Outer filling strip; 8. Tensile rope; 9. Inner filling rope; 10. Non-metallic polyester tape; 11. Ground wire. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0019] See also Figure 1In an embodiment of the utility model, an 8-pair Category 5e double-shielded network communication cable comprises a sheath layer 1, wherein a total of 8 pairs of core wire cables are arranged in the sheath layer 1, and the 8 pairs of core wire cables are distributed in two layers, an inner aluminum-plastic composite tape layer 6 is arranged between the inner and outer core wire cables, and the inner layer of the inner aluminum-plastic composite tape layer 6 is provided with a non-metallic polyester tape 10, and the non-metallic polyester tape 10 adopts a PET polyester tape, and the non-metallic polyester tape 10 is coated with a ground wire 11; a total of 3 pairs of the inner core wire cables are arranged, and an inner filling rope 9 is filled between the 3 pairs of the core wire cables; a total of 5 pairs of the outer core wire cables are arranged, and an outer filling strip 7 is arranged between the 5 pairs of the core wire cables, and a tensile rope 8 is arranged at the center of the outer filling strip 7, and the outer filling strip 7 adopts a polyolefin filling strip, and the tensile rope 8 adopts a polyester fiber rope;

[0020] The core cable and the outer filling strip 7 are coated by an outer aluminum-plastic composite tape layer 3, the outer layer of the outer aluminum-plastic composite tape layer 3 is coated with a metal braided layer 2, the outer layer of the metal braided layer 2 is coated with a sheath layer 1, the metal braided layer 2 is a tinned copper wire braided layer, and the sheath layer 1 is a polyolefin elastic sheath.

[0021] The core wire cable comprises a conductor 4 and an insulating layer 5 . Each pair of the core wire cables is provided with two conductors 4 , and the outer layer of each conductor 4 is coated with an insulating layer 5 .

[0022] Twisting: The pay-off of the semi-finished core wire adopts electromagnetic tension control to ensure that the cable moves forward with stable tension and clamping force.

[0023] One-time cabling: electromagnetic tension control is used for the pay-out of three pairs of semi-finished core wires to ensure that the cables move forward with stable tension and clamping force. Three polypropylene filling ropes and non-metallic non-woven tapes are filled and dragged at a constant tension speed. The non-metallic non-woven tape ensures the roundness and stability of the cabling structure. The non-metallic tape is coated with an aluminum-plastic composite tape shielding layer.

[0024] For secondary cabling, the primary cabling wire is evenly paid out using a pay-off drum with electromagnetic tension control. Five pairs of core wires and five filling wires are evenly wrapped around the primary cabling wire. The aluminum-plastic composite tape shielding layer is wrapped at a constant tension speed with the aluminum surface layer facing outward.

[0025] Weaving: The braided layer wraps the tinned copper wire 360 ​​degrees in two layers, tightly wrapped up, to resist external signal interference; the large-diameter guide wheel ensures that the bending radius of the wire is appropriate during movement, so as to avoid stress concentration that affects the wire diameter position and transmission performance. The wires are arranged neatly to prevent abnormal extrusion on the take-up reel, so as to ensure its stable electrical performance.

[0026] Sheath extrusion: flame-retardant and easy-flowing polyolefin materials are used to ensure the flame retardancy and softness of cable products. During the sheath extrusion process, the semi-finished product adopts active wire pay-off to ensure the stable tension of the cable; the large-diameter wire storage rack ensures that the bending radius of the wire is appropriate during the movement of the wire so as not to cause stress concentration that affects the wire diameter position and transmission performance. The wires are arranged neatly to prevent abnormal extrusion on the take-up reel to ensure its stable electrical performance.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An 8-pair Category 5e double-shielded network communication cable, comprising a sheath layer (1), characterized in that: A total of 8 pairs of core wire cables are arranged in the sheath layer (1), and the 8 pairs of core wire cables are distributed in two layers, an inner layer of aluminum-plastic composite tape layer (6) is arranged between the inner and outer layers of the core wire cables; a total of 3 pairs of the inner layer of core wire cables are arranged, and an inner layer of filling ropes (9) are filled between the 3 pairs of core wire cables; a total of 5 pairs of the outer layer of core wire cables are arranged, and an outer layer of filling strips (7) are arranged between the 5 pairs of core wire cables; The core cable and the outer filling strip (7) are coated by an outer aluminum-plastic composite tape layer (3), the outer layer of the outer aluminum-plastic composite tape layer (3) is coated with a metal braided layer (2), and the outer layer of the metal braided layer (2) is coated with a sheath layer (1).

2. The 8-pair Category 5e double-shielded network communication cable according to claim 1, characterized in that: The core wire cable comprises a conductor (4) and an insulating layer (5), each pair of the core wire cables is provided with two conductors (4), and the outer layer of each conductor (4) is coated with an insulating layer (5).

3. The 8-pair Category 5e double-shielded network communication cable according to claim 1, characterized in that: The inner layer of the inner aluminum-plastic composite tape layer (6) is provided with a non-metallic polyester tape (10), and the non-metallic polyester tape (10) is coated with a ground wire (11).

4. The 8-pair Category 5e double-shielded network communication cable according to claim 1, characterized in that: A tensile rope (8) is arranged at the center of the outer filling strip (7).

5. The 8-pair Category 5e double-shielded network communication cable according to claim 4, characterized in that: The outer filling strip (7) is made of polyolefin filling strip, and the tensile rope (8) is made of polyester fiber rope.

6. The 8-pair Category 5e double-shielded network communication cable according to claim 1, characterized in that: The metal braided layer (2) is a tinned copper wire braided layer, and the sheath layer (1) is a polyolefin elastic sheath.

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