Category 6 + network cable

Abstract

The utility model discloses a category 6 enhanced network cable, and belongs to the technical field of network cables. Comprising a sheath, a shielding layer, a skeleton and four twisted pairs. The cross section of the framework is square, the framework is arranged along the direction of the network cable, four corners of the framework are round corners and are tangent to the inner side of the shielding layer, and four through holes are arranged in the framework in a square manner; the through hole is arranged along the direction of the framework and is matched with the twisted pair; the four through holes are symmetrically arranged by taking the axis of the framework as a center and are respectively positioned at four corners of the framework; and the four twisted pairs are respectively positioned in the four through holes. And each pair of twisted pairs independently passes through one tubular skeleton, the isolation thickness among the four pairs of twisted pairs is larger, and the electromagnetic interference between adjacent pairs of twisted pairs is reduced. Compared with a traditional cross-shaped framework structure, the porous tubular framework has higher mechanical strength and is not prone to deformation. The porous skeleton structure can better protect the twisted pair in actual use, and is matched with the design of the tearing rope, thereby facilitating the construction operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of network cables, and particularly relates to a Category 6A network cable. Background Art

[0002] Category 6A twisted pair cables are designed to support the higher frequencies required for 10 Gigabit Ethernet network transmission. Common Category 6A network cables include a sheath, a shielding layer, a skeleton, and four pairs of twisted pairs. The skeleton is usually in a cross shape, and the four pairs of twisted pairs are located in the four right-angled areas of the skeleton.

[0003] For example, the patent application number CN201822130720.6 discloses a Category 6A network cable shielding device, including four groups of twisted pairs, the four groups of twisted pairs are arranged in a rotating array, the four groups of twisted pairs are sleeved with sheaths, and the single group of twisted pairs is wrapped with a shielding layer. A shielding net is filled between the sheath and the twisted pair, and the shielding net is a braided copper structure. The four groups of twisted pairs are isolated by an isolation frame, and the isolation frame is a cross-shaped structure.

[0004] For example, the patent with application number CN201822137871.4 discloses a CMP-grade CAT6UTP network cable, including a cross skeleton, a twisted pair and a flame retardant layer. The cross skeleton is provided with a twisted pair, and the twisted pair also includes a wire core, an HDPE layer and an FEP layer. The outer side of the wire core is coated with a HDPE layer, the outer side of the HDPE layer is coated with a FEP layer, and the outer side of the cross skeleton is coated with a flame retardant layer.

[0005] For example, the patent with application number CN202023273420.7 discloses a double-shielded network cable, including an outer sheath, a first shielding layer, a second shielding layer, four pairs of twisted pair wires and a cross skeleton; the outer sheath, the first shielding layer and the second shielding layer constitute a containment protection structure, and the containment protection structure has a containment space, and the containment protection structure wraps the four pairs of twisted pair wires and the cross skeleton in the containment space; the outer sheath wraps the first shielding layer, and the first shielding layer wraps the second shielding layer; the four pairs of twisted pair wires are respectively twisted orange and white wires and orange wires, green and white wires and green wires, blue and white wires and blue wires, and brown and white wires and brown wires; the cross skeleton includes four partition walls, and the cross skeleton divides the containment space into four parts, and the four pairs of twisted pair wires are respectively arranged in the four parts of the containment space; the thickness of the two partition walls close to the twisted pair wires twisted with the green and white wires is greater than the thickness of the other two partition walls.

[0006] For example, the patent with application number CN202221939469.8 discloses a category 6 network cable with good high temperature resistance, including a protective cover, an insulating layer fixedly connected to the inside of the protective cover, a cross frame installed inside the insulating layer, a wire core fixedly connected to the surface of the cross frame, a shielding layer fixedly connected to the surface of the wire core, and a high temperature resistant layer fixedly connected to the surface of the protective cover.

[0007] The existing technology usually adopts a cross skeleton structure, which is used to separate the four pairs of twisted wires, thereby reducing the interference between the wire pairs. However, this structure has some disadvantages in actual use, such as insufficient skeleton strength (thickness is usually 0.4-0.6mm), unstable anti-interference ability (when the twisted pair is twisted with the skeleton, the twisted pair may be separated from the skeleton), etc. Summary of the invention

[0008] The embodiment of the utility model provides a Category 6A network cable, which uses four tubular skeletons to replace the cross skeleton, thereby enhancing the comprehensive performance of the network cable (significantly improving the anti-interference ability and mechanical strength of the network cable). The technical solution is as follows:

[0009] The embodiment of the utility model provides a Category 6a network cable, including a sheath 4, a shielding layer 3, a skeleton 2 and four pairs of twisted pair wires 1; the cross-section of the skeleton 2 is square, which is arranged along the direction of the network cable, and its four corners are rounded and tangent to the inner side of the shielding layer 3, and four through holes 5 are arranged in a square pattern therein; the through holes 5 are arranged along the direction of the skeleton 2, and cooperate with the twisted pair wires 1; the four through holes 5 are symmetrically arranged with respect to the axis center of the skeleton 2, and are respectively located at the four corners of the skeleton 2; the four twisted pair wires 1 are respectively located in the four through holes 5.

[0010] Specifically, the skeleton 2 in the embodiment of the utility model is a high-strength polypropylene skeleton.

[0011] The through hole 5 in the embodiment of the utility model is a circular hole, which is tangent to the outer side of the twisted pair 1 .

[0012] Preferably, the through hole 5 in the embodiment of the utility model is coaxially arranged with the corresponding fillet.

[0013] Specifically, the distance between adjacent through holes 5 in the embodiment of the utility model is 0.4-0.6 mm, and the distance between the through hole 5 and the corresponding fillet is 0.3-0.6 mm.

[0014] Among them, the skeleton 2, shielding layer 3 and sheath 4 in the embodiment of the utility model are arranged in sequence from the inside to the outside, the shielding layer 3 is an aluminum foil layer or a braided copper mesh layer, and the sheath 4 is a polyvinyl chloride layer or a low-smoke halogen-free layer.

[0015] Furthermore, the network cable in the embodiment of the utility model further includes a grounding wire 6 , and the grounding wire 6 is located between the shielding layer 3 and the sheath 4 .

[0016] Furthermore, the network cable in the embodiment of the utility model further includes a tear cord 7 , and the tear cord 7 is located between the shielding layer 3 and the sheath 4 .

[0017] The beneficial effects of the technical solution provided by the embodiment of the utility model are as follows: the embodiment of the utility model provides a Category 6A network cable, each pair of twisted wires independently passes through a through hole of a tubular skeleton, and does not need to be twisted into cables, which can prevent the core wire from jumping out of the skeleton during the cabling process, causing the transmission performance to deteriorate. Improved structural strength: Compared with the traditional cross skeleton structure, the porous tubular skeleton has higher mechanical strength and is not easy to deform. The porous skeleton structure can better protect the twisted wires in actual use, and with the design of the tear rope, it is convenient for construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the existing Category 6A network cable;

[0019] Figure 2 It is a schematic diagram of the structure of the Category 6A network cable provided by an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the skeleton;

[0021] Figure 4 This is the test picture before improvement;

[0022] Figure 5 This is the improved test chart.

[0023] In the figure: 1 twisted pair, 2 skeleton, 3 shielding layer, 4 sheath, 5 through hole, 6 ground wire, 7 tear rope. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0025] See also Figure 2-3The embodiment of the utility model provides a Category 6a network cable, including a sheath 4, a shielding layer 3, a skeleton 2, a grounding wire 6, a tear cord 7 and four pairs of twisted pair cables 1. The skeleton 2, the shielding layer 3 and the sheath 4 are arranged in sequence from the inside to the outside. The shielding layer 3 is an aluminum foil layer or a braided copper mesh layer, etc., and a corresponding shielding structure is adopted according to the shielding effect to be achieved. The sheath 4 is a polyvinyl chloride layer (PVC) or a low-smoke zero-halogen layer (LSZH), etc., which plays a role in protecting the internal structure. The grounding wire 6 is located between the shielding layer 3 and the sheath 4. The grounding wire 6 is used for grounding treatment of the network cable. The material is tinned copper wire to ensure good conductivity. The tear cord 7 is located between the shielding layer 3 and the sheath 4. The tear cord 7 is convenient for stripping and construction of the outer sheath. The material is high-strength polyester fiber. The core of the twisted pair cable 1 is made of high-purity oxygen-free copper, and the insulation layer is made of high-density polyethylene (HDPE). The above structure is basically the same as the structure of the existing Category 6a network cable, except that:

[0026] The cross section of the skeleton 2 in this embodiment is square (specifically a four-hole square tube), which is arranged along the direction of the network cable, and its four corners are rounded and tangent to the inner side of the shielding layer 3. Four through holes 5 are arranged in a square inside, which is a high-strength polypropylene skeleton (to ensure the mechanical strength of the skeleton). The through holes 5 are arranged along the direction of the skeleton 2, which cooperate with the twisted pair 1. They are round holes, which are tangent to the outer side of the twisted pair 1 and are used to accommodate a pair of twisted pairs 1. The four through holes 5 are symmetrically arranged with respect to the axis center of the skeleton 2, and are respectively located at the four corners of the skeleton 2, and are coaxially arranged with the corresponding rounded corners. The four twisted pairs 1 are respectively located in the four through holes 5.

[0027] Specifically, the distance between adjacent through holes 5 in the embodiment of the utility model is 0.4-0.6 mm (specifically 0.5 mm), and the distance between the through hole 5 and the corresponding fillet is 0.3-0.6 mm (specifically 0.5 mm).

[0028] test

[0029] Test conditions

[0030] Main tester: Versiv;

[0031] Remote tester: Versiv;

[0032] Test limited version: V7.6;

[0033] Software version: V6.6 Build 2;

[0034] Adapter: DSX-8000 (DSX-PLA804);

[0035] NVP: 68.2%.

[0036] The test results before improvement are shown in Table 1:

[0037] Table 1

[0038]

[0039] The improved test results are shown in Table 2:

[0040] Table 2

[0041]

[0042] The margin before improvement was 1.5dB (NEXT 3.6-7.8), and the margin after improvement was 5.1dB (NEXT 3.6-7.8). The transmission performance after improvement is better.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A Category 6A network cable, comprising a sheath (4), a shielding layer (3), a skeleton (2) and four pairs of twisted pair cables (1); characterized in that: The skeleton (2) has a square cross-section and is arranged along the direction of the network cable. Its four corners are rounded and tangent to the inner side of the shielding layer (3), and four through holes (5) are arranged in a square pattern inside the skeleton (2). The through holes (5) are arranged along the direction of the skeleton (2) and cooperate with the twisted pair cables (1). The four through holes (5) are symmetrically arranged about the axis of the skeleton (2) and are respectively located at the four corners of the skeleton (2). The four twisted pair cables (1) are respectively located in the four through holes (5).

2. The Category 6A network cable according to claim 1, characterized in that: The skeleton (2) is a high-strength polypropylene skeleton.

3. The Category 6A network cable according to claim 1, characterized in that: The through hole (5) is a circular hole, which is tangent to the outer side of the twisted pair (1).

4. The Category 6A network cable according to claim 3, characterized in that: The through hole (5) is coaxially arranged with the corresponding fillet.

5. The Category 6A network cable according to claim 4, characterized in that: The distance between adjacent through holes (5) is 0.4-0.6 mm, and the distance between the through hole (5) and the corresponding fillet is 0.3-0.6 mm.

6. The Category 6A network cable according to claim 1, characterized in that: The skeleton (2), the shielding layer (3) and the sheath (4) are arranged in sequence from the inside to the outside; the shielding layer (3) is an aluminum foil layer or a braided copper mesh layer; and the sheath (4) is a polyvinyl chloride layer or a low-smoke halogen-free layer.

7. The Category 6a network cable according to claim 6, characterized in that: The network cable also includes a grounding wire (6), wherein the grounding wire (6) is located between the shielding layer (3) and the sheath (4).

8. The Category 6A network cable according to claim 7, characterized in that: The network cable also includes a tear cord (7), wherein the tear cord (7) is located between the shielding layer (3) and the sheath (4).

Images