CN217008779U - Thin-diameter light anti-channeling communication cable - Google Patents
Thin-diameter light anti-channeling communication cable Download PDFInfo
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- CN217008779U CN217008779U CN202220447560.1U CN202220447560U CN217008779U CN 217008779 U CN217008779 U CN 217008779U CN 202220447560 U CN202220447560 U CN 202220447560U CN 217008779 U CN217008779 U CN 217008779U
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- 239000004020 conductor Substances 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000004760 aramid Substances 0.000 claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000009941 weaving Methods 0.000 claims abstract description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 17
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model discloses a thin-diameter light anti-channeling core communication cable, wherein two insulated wire cores are twisted in pairs and uniformly distributed with a grounding conductor and an AFRP reinforced core strip in a cross shape to form a cable core, the outer diameter ratio of the grounding conductor to the insulated wire cores is 1:3 to 1:5, the outer diameter ratio of the grounding conductor to the AFRP reinforced core strip is 1:1 to 1:1.15, a conductive fiber winding shielding layer and a fluororesin extruding outer sheath are sequentially coated outside the cable core, the conductive fiber winding shielding layer is formed by reversely spirally lapping and weaving inner and outer double-layer aramid twisted wires to form an elliptic cylindrical supporting net body, a plurality of conductive fiber bundles are uniformly distributed on the supporting net body in the circumferential direction, the conductive fiber bundles are formed by stranding a plurality of polyacrylonitrile-based carbon fibers and coating copper conductive coatings, and the outer diameter of the fluororesin extruding outer sheath is not more than 3.5 mm. The cable ensures the balanced structure of the cable core section under the premise of manufacturing the cable with small diameter and light weight, prevents the core from being crossed by the wire core, and ensures the stability of the electrical characteristics of the cable.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a small-diameter light anti-channeling communication cable.
Background
Twisted pair cables are one of the most common wiring materials for integrated wiring and are widely used in data communication networks. The cable is composed of two copper wires with insulating protective layers, and the copper wires are twisted according to a certain pitch, so that the degree of signal interference can be reduced, and the electric wave radiated by each wire in transmission can be counteracted by the electric wave emitted by the other wire. However, when the ground wire and the twisted pair are twisted together, the cable core structure formed by asymmetric twisting with different outer diameters is not uniform, so that core crossing is easy to occur, the signal transmission characteristic is poor, and the electrical characteristic of the cable is greatly influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to solve the technical problem of providing a small-diameter light-weight anti-core-channeling communication cable, which ensures the balanced structure of the cable core section, prevents the core from channeling and ensures the stability of the electrical characteristics of the cable on the premise of manufacturing the small-diameter light-weight communication cable.
The utility model solves the technical problems through the following technical scheme.
The small-diameter light anti-channeling core communication cable comprises two insulated wire cores, a grounding conductor and an AFRP (atomic resonance Power) reinforced core strip, wherein the two insulated wire cores are twisted in pairs and are uniformly distributed in a cross shape to form a cable core, the ratio of the outer diameter of the grounding conductor to the outer diameter of the insulated wire core is 1: 3-1: 5, the ratio of the outer diameters of the grounding conductor and the AFRP reinforced core strip is 1: 1-1: 1.15, the outer diameter of the insulated wire core is not more than 1mm, the twisting distance of the insulated wire core is 12 mm-30 mm, the insulated wire core comprises an inner conductor and a foamed fluororesin insulating layer, a conductive fiber winding shielding layer and a fluororesin extruding outer sheath are sequentially coated outside the cable core, the conductive fiber winding shielding layer is an elliptic cylindrical supporting net body formed by reversely spirally winding and weaving inner and outer double-layer aramid twisted wires, a plurality of conductive fiber bundles are uniformly distributed on the supporting net body in the circumferential direction, and the conductive fiber bundles are formed by stranding a plurality of polyacrylonitrile-based carbon fibers and coating copper conductive coatings, the outer diameter of the outer sheath extruded by the fluororesin is not more than 3.5 mm.
Preferably, the outer diameter of the insulated wire core is not more than 0.9 mm.
Preferably, the grounding conductor is formed by twisting and pressing a plurality of soft copper wires.
Preferably, the inner conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.01mm to 0.03 mm.
Preferably, the foamed fluororesin insulation layer has a thickness of not more than 0.3 mm.
Preferably, the polyacrylonitrile-based carbon fiber has a wire diameter of not more than 25 μm.
Preferably, the thickness of the conductive fiber winding shielding layer is not more than 0.3 mm.
Preferably, the diameter of the inner aramid twisted wire is 0.04mm to 0.08mm, the diameter of the outer aramid twisted wire is 0.06mm to 0.12mm, and the diameter of the outer aramid twisted wire is larger than that of the inner aramid twisted wire.
Preferably, the AFRP reinforced core strip is formed by twisting a plurality of aramid fibers and integrally bonding the aramid fibers and thermoplastic polypropylene resin in a hot melting manner.
Preferably, the thickness of the fluororesin extruded outer sheath is 0.3mm to 1.2 mm.
The utility model has the beneficial effects that:
1. the AFRP strengthening core strips are symmetrically added to the positions of the grounding conductors in the cable core, so that the cross-sectional structure of the cable core is balanced, and then the cable core is wrapped with the conductive fiber winding shielding layer and the fluororesin extruding outer sheath, so that the phenomenon of core jumping inside the cable core is effectively prevented, the stability of signal transmission is ensured, and the electrical characteristics of the cable are improved. The outer diameter ratio of the grounding conductor to the outer diameter of the insulated wire core is optimized to be 1:3 to 1:5, the outer diameter ratio of the grounding conductor to the AFRP reinforced core strip is 1:1 to 1:1.15, the cable core outline is made to be oval, the conductive fiber winding shielding layer is formed by weaving double-layer aramid twisted wires to form an oval cylindrical supporting net body, the oval cylindrical supporting net body has high strength and high modulus and is beneficial to improving the bending resistance of the cable, the conductive fiber bundles are distributed on the supporting net body and formed by twisting polyacrylonitrile-based carbon fibers and coating copper-coated conductive coatings, the conductive fiber bundles effectively replace metal material shielding layers and are in direct contact connection with the grounding conductor, internal signals or noise can be effectively inhibited from leaking to the outside and interference from external signals can be inhibited, the shielding performance is ensured to be stable, the weight of the cable is effectively reduced, the cost is reduced, and the light weight production is realized.
The AFRP reinforced core strips and the grounding conductors are symmetrically arranged, so that the AFRP reinforced core strips and the grounding conductors have high strength and large tensile elastic modulus, are favorable for improving the balance of the overall structure of the cable core, bear lateral pressure when the cable core is bent, can relieve the load stress applied to the cable core from the outside to a certain extent, reduce the local stress concentration of the insulated wire core, improve the bending resistance of the cable core, prevent the occurrence of core breaking and wire breaking, ensure the safe and reliable electrical characteristics of the cable, and are durable in use.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.
In the figure: 1-an insulating wire core, 2-a grounding conductor, 3-an AFRP reinforced core bar, 4-a conductive fiber winding shielding layer, 5-a fluororesin extruded outer sheath, 6-an inner conductor and 7-a foamed fluororesin insulating layer.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, in the thin-diameter light-weight anti-channeling communication cable according to the embodiment of the present invention, two insulated wire cores 1 are twisted in pairs and uniformly distributed in a cross shape with a ground conductor 2 and an AFRP reinforced core strip 3 to form a cable core, and specifically, the ground conductor 2 is formed by twisting and pressing a plurality of soft copper wires. The AFRP reinforced core strip 3 is formed by twisting a plurality of aramid fibers and bonding the aramid fibers and thermoplastic polypropylene resin into a whole through hot melting. The ratio of the outer diameter of the grounding conductor 2 to the outer diameter of the insulated wire core 1 is 1:3 to 1:5, and the ratio of the outer diameter of the grounding conductor 2 to the outer diameter of the AFRP reinforced core strip 3 is 1:1 to 1: 1.15. The outer diameter of the insulated wire core 1 is not more than 1mm, and preferably, the outer diameter of the insulated wire core 1 is not more than 0.9 mm. The lay length of the insulated wire core 1 is 12mm to 30 mm. The insulated wire core 1 comprises an inner conductor 6 and a foamed fluororesin insulating layer 7, specifically, the inner conductor 6 is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameters of 0.01mm to 0.03mm, and the thickness of the foamed fluororesin insulating layer 7 is not more than 0.3 mm. The cable core is coated with a conductive fiber winding shielding layer 4 and a fluororesin extruded outer sheath 5 in sequence. Conductive fiber winding shielding layer 4 is that inside and outside double-deck aramid fiber twisted wire is each other for reverse spiral is woven around the package and is formed oval cylindric support meshwork, and specific saying so, the line footpath of inlayer aramid fiber twisted wire is 0.04mm to 0.08mm, the line footpath of outer aramid fiber twisted wire is 0.06mm to 0.12mm, the line footpath of outer aramid fiber twisted wire is greater than the line footpath of inlayer aramid fiber twisted wire. The supporting net body is uniformly distributed with a plurality of conductive fiber bundles in the circumferential direction, the conductive fiber bundles are formed by stranding a plurality of polyacrylonitrile-based carbon fibers and coating the polyacrylonitrile-based carbon fibers with a copper conductive coating, and further, the wire diameter of the polyacrylonitrile-based carbon fibers is not more than 25 mu m. Preferably, the thickness of the conductive fiber winding shielding layer 4 is not more than 0.3 mm. The outer diameter of the fluororesin extruded outer sheath 5 is not more than 3.5 mm. The thickness of the fluororesin extruded outer sheath 5 is 0.3mm to 1.2 mm.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. Thin footpath light prevents scurrying core communication cable, characterized by: two insulated wire cores (1) are twisted in pairs, and are uniformly distributed with a grounding conductor (2) and an AFRP reinforced core strip (3) in a cross shape to form a cable core, the ratio of the outer diameter of the grounding conductor (2) to the outer diameter of the insulated wire cores (1) is 1:3 to 1:5, the ratio of the outer diameters of the grounding conductor (2) to the outer diameter of the AFRP reinforced core strip (3) is 1:1 to 1:1.15, the outer diameter of the insulated wire cores (1) is not more than 1mm, the lay length of the insulated wire cores (1) is 12mm to 30mm, each insulated wire core (1) comprises an inner conductor (6) and a foamed fluororesin insulating layer (7), a conductive fiber winding shielding layer (4) and a fluororesin extruding and wrapping outer sheath (5) are sequentially coated outside the cable core, the conductive fiber winding shielding layer (4) is formed by reversely spirally weaving inner and outer aramid twisted layers to form an elliptic cylindrical support net body, and a plurality of conductive fiber bundles are uniformly distributed on the support net body in the circumferential direction, the conductive fiber bundle is formed by stranding a plurality of polyacrylonitrile-based carbon fibers and coating a copper conductive coating, and the outer diameter of the fluororesin extruded outer sheath (5) is not more than 3.5 mm.
2. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the outer diameter of the insulated wire core (1) is not more than 0.9 mm.
3. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the grounding conductor (2) is formed by twisting and pressing a plurality of soft copper wires.
4. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the inner conductor (6) is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.01mm to 0.03 mm.
5. The thin-gauge, lightweight, tamper-resistant communication cable of claim 1, wherein: the thickness of the foamed fluororesin insulation layer (7) is not more than 0.3 mm.
6. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the wire diameter of the polyacrylonitrile-based carbon fiber is not more than 25 μm.
7. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the thickness of the conductive fiber winding shielding layer (4) is not more than 0.3 mm.
8. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the diameter of the inner-layer aramid twisted wire is 0.04mm to 0.08mm, the diameter of the outer-layer aramid twisted wire is 0.06mm to 0.12mm, and the diameter of the outer-layer aramid twisted wire is larger than that of the inner-layer aramid twisted wire.
9. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the AFRP reinforced core strip (3) is formed by twisting a plurality of aramid fibers and integrally bonding the aramid fibers with thermoplastic polypropylene resin in a hot melting manner.
10. The thin-gauge, lightweight, tamper-resistant communications cable of claim 1, wherein: the thickness of the fluororesin extruded outer sheath (5) is 0.3mm to 1.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220447560.1U CN217008779U (en) | 2022-03-03 | 2022-03-03 | Thin-diameter light anti-channeling communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220447560.1U CN217008779U (en) | 2022-03-03 | 2022-03-03 | Thin-diameter light anti-channeling communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217008779U true CN217008779U (en) | 2022-07-19 |
Family
ID=82394675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220447560.1U Active CN217008779U (en) | 2022-03-03 | 2022-03-03 | Thin-diameter light anti-channeling communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217008779U (en) |
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2022
- 2022-03-03 CN CN202220447560.1U patent/CN217008779U/en active Active
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