Network cable with special performance
By employing alternating twisted pairs and filler units in the network cable, combined with a robust layer, the problem of poor crosstalk resistance in small-diameter conductor designs of network cables is solved, flame retardancy and flexibility are improved, and a simple and low-cost structural improvement is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-07
AI Technical Summary
Existing network cables cannot incorporate isolation supports in their small-diameter conductor designs. The excessively small spacing between stranded wires leads to compression, resulting in poor crosstalk resistance. Furthermore, they have limitations in flame retardancy, bending resistance, and flexibility.
The core is formed by twisting multiple twisted pairs and filling units to form a filling cavity. The filling unit is made of N strands of fiber monofilaments twisted together, with a twist pitch of 15-20 times. Combined with a reinforcement layer, the structural stability and performance of the network cable are improved.
It effectively improves the crosstalk resistance of network cables, enhances flame retardancy and bending resistance, and improves flexibility. The manufacturing process is simple and low-cost.
Smart Images
Figure CN224096421U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of information transmission cables, and particularly relates to a network cable with special performance. BACKGROUND
[0002] In the prior art, with the rapid development of information technology, network cables are increasingly widely applied in various fields, and their performance directly affects the efficiency and reliability of data transmission. However, the existing network cables still have some deficiencies in special performance, especially in flame retardation performance and mechanical performance, which seriously limits the application of network cables in some specific environments, such as industrial control, data centers and high-density wiring occasions.
[0003] In the prior art, the structure of a conventional unshielded twisted pair network cable cannot be applied to the design of a network cable with a small specification cross-sectional area of not more than 0.06 mm 2 In the design of a network cable with a small specification conductor, the conductor core of the network cable with a small specification conductor is too small to design a support in the conductor core to separate the twisted pairs, the spacing between the twisted pairs is too small, and the twisted pairs are pressed against each other, and the network cable has poor anti-crosstalk performance in actual use. Moreover, due to the limitation of the size specification of the network cable, the traditional network cable has certain limitations in flame retardation performance, bending resistance and flexibility, and therefore, it is urgent to make improvements. CONTENT OF THE UTILITY MODEL
[0004] The application is proposed to solve the technical problems in the prior art that a conventional unshielded twisted pair cannot be applied to the design of a network cable with a small specification, and cannot be provided with an isolation support in a small specification network cable due to the limitation of the specification of the network cable, the spacing between the twisted pairs is too small, the twisted pairs are pressed against each other, the network cable has poor anti-crosstalk performance in actual use, and has certain limitations in flame retardation performance, bending resistance and flexibility, and the application provides a network cable with special performance.
[0005] The application adopts the following scheme, a network cable with special performance, comprising a conductor core and a strong layer group wrapped on the outer periphery of the conductor core, the conductor core is twisted by a plurality of twisted pairs and a plurality of filling units, and adjacent two twisted pairs jointly enclose a filling cavity inside the conductor core, and each filling unit is matched and arranged in the filling cavity, the filling unit is twisted by N strands of fiber filaments, and the twisting pitch of the N strands of fiber filaments is 15-20 times.
[0006] In some feasible embodiments, the material of the fiber filament is selected from any one of polypropylene fiber, carbon fiber, glass fiber, nylon fiber and bamboo fiber.
[0007] In some feasible embodiments, the value of N is a positive integer in the range of 2-30.
[0008] In some possible embodiments, the filling units include a central filling unit arranged at the middle of the core and M outer filling units arranged at intervals along the circumference of the core, where M is a positive integer in the range of 2-10.
[0009] In some possible embodiments, the twisted pair is twisted by at least two transmission lines.
[0010] In some possible embodiments, the group of strong layers includes a first flame-retardant layer wrapped around the outer periphery of the core, a first sheath layer wrapped around the outer periphery of the first flame-retardant layer, a shielding layer wrapped around the outer periphery of the first sheath layer, a second flame-retardant layer wrapped around the outer periphery of the shielding layer, and a second sheath layer wrapped around the second flame-retardant layer.
[0011] In some possible embodiments, the first flame-retardant layer and the second flame-retardant layer are made of the same material, and the material is polytetrafluoroethylene.
[0012] In some possible embodiments,
[0013] The thickness of the first flame-retardant layer is greater than the thickness of the second flame-retardant layer, the thickness of the first flame-retardant layer is 0.02mm-0.20mm, and the thickness of the second flame-retardant layer is 0.02mm-0.20mm.
[0014] In some possible embodiments,
[0015] The material of the first sheath layer is selected from any one of polytetrafluoroethylene, thermoplastic elastomer TPE, polyurethane TPU, and polyvinyl chloride PVC.
[0016] The material of the second sheath layer is selected from any one of polyvinyl chloride PVC, polyurethane TPU, polyethylene PE, and thermoplastic elastomer TPE.
[0017] In some possible embodiments, the material of the shielding layer is selected from any one of aluminum foil, copper foil, and graphene conductive tape.
[0018] In some possible embodiments, the group of strong layers further includes a ground wire arranged between the shielding layer and the second flame-retardant layer.
[0019] Compared with the prior art, the present application has the following beneficial effects:
[0020] The application provides a network cable with special performance, which comprises a core and a strong layer group wrapped on the outer periphery of the core, wherein the core is twisted by a plurality of twisted pairs and a plurality of filling units, two adjacent twisted pairs are jointly enclosed into a filling cavity in the core, each filling unit is arranged in the filling cavity and abuts against the outer periphery of the twisted pairs, the filling unit is twisted by N strands of fiber filaments, and the twisting pitch of the N strands of fiber filaments is 15-20 times. By alternately arranging the twisted pairs and the filling units in the core, the two adjacent twisted pairs can be effectively separated, the distance between the twisted pairs is prevented from being too small, the mutual extrusion of the twisted pairs in use is avoided, the crosstalk resistance of the network cable is effectively improved, the flame resistance, the bending resistance and the flexibility of the network cable are effectively improved by cooperating with the strong layer group wrapped on the outer periphery of the core, and the network cable has the advantages of simple structure, excellent crosstalk resistance, easy preparation process, low implementation cost and easy popularization and implementation. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a cross-sectional structure diagram of the network cable with special performance. DETAILED DESCRIPTION
[0022] In combination with the content shown in the drawings, the technical scheme provided by the application is further described. Figure 1 A network cable with special performance comprises a core 9 and a strong layer group 100 wrapped on the outer periphery of the core 9, the core 9 is twisted by a plurality of twisted pairs 7 and a plurality of filling units 5, two adjacent twisted pairs 7 are jointly enclosed into a filling cavity 52 in the core 9, each filling unit 5 is arranged in the filling cavity 52, the filling unit 5 is twisted by N strands of fiber filaments, and the twisting pitch of the N strands of fiber filaments is 15-20 times.
[0023] The application provides a network cable with special performance, which comprises a core and a strong layer group wrapped on the outer periphery of the core, wherein the core is twisted by a plurality of twisted pairs and a plurality of filling units, two adjacent twisted pairs are jointly enclosed into a filling cavity in the core, each filling unit is arranged in the filling cavity and abuts against the outer periphery of the twisted pairs, the filling unit is twisted by N strands of fiber filaments, and the twisting pitch of the N strands of fiber filaments is 15-20 times. By alternately arranging the twisted pairs and the filling units in the core, the two adjacent twisted pairs can be effectively separated, the distance between the twisted pairs is prevented from being too small, the mutual extrusion of the twisted pairs in use is avoided, the crosstalk resistance of the network cable is effectively improved, the flame resistance, the bending resistance and the flexibility of the network cable are effectively improved by cooperating with the strong layer group wrapped on the outer periphery of the core, and the network cable has the advantages of simple structure, excellent crosstalk resistance, easy preparation process, low implementation cost and easy popularization and implementation.
[0024] In the implementation process of the embodiment, the material of the fiber monofilament is selected from any one of polypropylene fiber, carbon fiber, glass fiber, nylon fiber and bamboo fiber.
[0025] In the actual implementation process, the material of the fiber monofilament is carbon fiber.
[0026] In the actual implementation process, the carbon fiber is used as the fiber monofilament, which can effectively improve the tensile strength of the network cable, so that the network cable can bear greater mechanical load, and the self-weight of the network cable can be reduced and the installation convenience can be improved.
[0027] Further, to improve the mechanical properties of the filling unit, the material of the fiber monofilament is composed of carbon fiber, nylon fiber and bamboo fiber.
[0028] In the implementation process of the embodiment, the value of N is a positive integer in the range of 2-30.
[0029] For example, the value of N is 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20.
[0030] In the actual implementation process, the value of N is 19.
[0031] In the implementation process of the embodiment, the filling unit 5 includes a central filling unit 50 arranged at the middle of the core 9, and M outer filling units 51 arranged along the circumference of the core 9 at intervals, and the value of M is a positive integer in the range of 2-10.
[0032] In the actual implementation process, the value of M is 4.
[0033] In the implementation process of the embodiment, the twisted pair 7 is twisted by at least two transmission line monofilaments, and the twisting directions of the adjacent two twisted pairs 7 are different.
[0034] In the implementation process of the embodiment, the reinforced layer group 100 includes a first flame-retardant layer 6 wrapped on the outer periphery of the core 9, a first sheath layer 4 wrapped on the outer periphery of the first flame-retardant layer 6, a shielding layer 3 wrapped on the outer periphery of the first sheath layer 4, a second flame-retardant layer 2 wrapped on the outer periphery of the shielding layer 3, and a second sheath layer 1 wrapped on the second flame-retardant layer 2.
[0035] In the implementation process of the embodiment, the material of the first flame-retardant layer 6 and the second flame-retardant layer 2 is the same, and the material of the first flame-retardant layer 6 and the second flame-retardant layer 2 is selected from polytetrafluoroethylene.
[0036] In the implementation of the embodiment, the thickness of the first fire-retardant layer 6 is greater than the thickness of the second fire-retardant layer 2, the thickness of the first fire-retardant layer 6 is 0.02mm-0.20mm, and the thickness of the second fire-retardant layer 2 is 0.02mm-0.20mm.
[0037] In the actual implementation, the thickness of the first fire-retardant layer 6 is 0.2mm, and the thickness of the second fire-retardant layer 2 is 0.1mm.
[0038] In the implementation of the embodiment,
[0039] The material of the first sheath layer 4 is selected from any one of polytetrafluoroethylene, thermoplastic elastomer TPE, polyurethane TPU, and polyvinyl chloride PVC.
[0040] In the actual implementation, the material of the first sheath layer 4 is selected from thermoplastic elastomer TPE.
[0041] The material of the second sheath layer 1 is selected from any one of polyvinyl chloride PVC, polyurethane TPU, polyethylene PE, and thermoplastic elastomer TPE.
[0042] In the actual implementation, the material of the second sheath layer 1 is selected from polyurethane TPU.
[0043] In the actual implementation, by using polyurethane TPU as the second sheath layer, the wear resistance, tensile resistance, flexibility, and folding resistance of the second sheath layer can be effectively improved, and the service life of the network cable can be effectively prolonged.
[0044] In the implementation of the embodiment, the material of the shielding layer 3 is selected from any one of aluminum foil, copper foil, and graphene conductive tape.
[0045] In the actual implementation, the material of the shielding layer 3 is selected from aluminum foil.
[0046] In the implementation of the embodiment, the strong layer group further includes a ground wire 8 arranged between the shielding layer and the second fire-retardant tape.
[0047] The application provides a network cable with special performance, which comprises a core and a plurality of strong layer groups wrapped on the periphery of the core, wherein the core is twisted by a plurality of twisted pairs and a plurality of filling units, two adjacent twisted pairs enclose a filling cavity in the core, each filling unit is arranged in the filling cavity and abuts against the periphery of the twisted pairs, the filling unit is twisted by N strands of fiber filaments, and the twisting pitch of the N strands of fiber filaments is 15-20 times, the network cable can effectively separate the two adjacent twisted pairs, avoid the mutual extrusion of the twisted pairs due to the small spacing between the twisted pairs, and improve the anti-crosstalk performance of the network cable, the strong layer groups wrapped on the periphery of the core can improve the flame retardant performance, bending resistance and flexibility of the network cable, and the network cable has the advantages of simple structure, excellent anti-crosstalk performance, easy preparation process, low implementation cost and easy popularization and implementation.
[0048] The application provides a network cable with special performance, which is designed by the internal structure of the network cable, can meet the flame retardant requirement of UL1581 vertical burning VW-1, has good swing resistance, smooth and wrinkle-free appearance, good wire softness, very small outer diameter, is convenient for fixed connection or portable use in household or work scenes, overcomes the problems of large outer diameter, obvious appearance wrinkle and hard wire of the traditional network cable, is especially suitable for portable use, and is small and convenient to store.
[0049] The above is only an embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement and improvement within the spirit and principle of the application should be included in the protection scope of the application.
Claims
1. A network cable with special properties, characterized in that, Includes a wire core (9) and a reinforcing layer (100) covering the outer periphery of the wire core (9). The wire core (9) is formed by twisting multiple twisted pairs (7) and multiple filling units (5). Two adjacent twisted pairs (7) together form a filling cavity (52) inside the wire core (9). Each filling unit (5) is matched and disposed in the filling cavity (52). The filling unit (5) is formed by twisting N strands of fiber monofilaments. The twisting pitch of the N strands of fiber monofilaments is 15 to 20 times. The reinforcement layer group (100) includes a first flame-retardant layer (6) covering the outer periphery of the wire core (9), a first sheath layer (4) covering the outer periphery of the first flame-retardant layer (6), a shielding layer (3) covering the outer periphery of the first sheath layer (4), a second flame-retardant layer (2) covering the outer periphery of the shielding layer (3), and a second sheath layer (1) covering the second flame-retardant layer (2). The first flame retardant layer (6) and the second flame retardant layer (2) are made of the same material, and the first flame retardant layer (6) and the second flame retardant layer (2) are made of polytetrafluoroethylene. The thickness of the first flame retardant layer (6) is greater than the thickness of the second flame retardant layer (2). The thickness of the first flame retardant layer (6) is 0.02mm-0.20mm, and the thickness of the second flame retardant layer (2) is 0.02mm-0.20mm.
2. The network cable with special performance according to claim 1, characterized in that, The material of the fiber monofilament is selected from any one of polypropylene fiber, carbon fiber, glass fiber, nylon fiber, and bamboo fiber.
3. The network cable with special performance according to claim 1, characterized in that, The value of N is a positive integer ranging from 2 to 30.
4. The network cable with special performance according to claim 1, characterized in that, The filling unit (5) includes a central filling unit (50) located in the middle of the wire core (9) and M outer filling units (51) spaced apart circumferentially along the wire core (9), where M is a positive integer ranging from 2 to 10.
5. A network cable with special performance according to claim 1, characterized in that, The twisted pair (7) is formed by twisting together at least two transmission line monofilaments, and the twisting directions of adjacent twisted pairs (7) are different.
6. A network cable with special performance according to claim 1, characterized in that, The material of the first sheath layer (4) is selected from any one of polytetrafluoroethylene, thermoplastic elastomer TPE, polyurethane TPU, and polyvinyl chloride PVC; The material of the second sheath layer (1) is selected from any one of polyvinyl chloride (PVC), polyurethane (TPU), polyethylene (PE), and thermoplastic elastomer (TPE).
7. A network cable with special performance according to claim 1, characterized in that, The material of the shielding layer (3) is selected from any one of aluminum foil, copper foil, and graphene conductive strip.