WO2016078428A1 - Câble coaxial à fuite composite à câble optique intégré, et son procédé de fabrication - Google Patents

Câble coaxial à fuite composite à câble optique intégré, et son procédé de fabrication Download PDF

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Publication number
WO2016078428A1
WO2016078428A1 PCT/CN2015/083432 CN2015083432W WO2016078428A1 WO 2016078428 A1 WO2016078428 A1 WO 2016078428A1 CN 2015083432 W CN2015083432 W CN 2015083432W WO 2016078428 A1 WO2016078428 A1 WO 2016078428A1
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WO
WIPO (PCT)
Prior art keywords
polyethylene
cable
optical cable
outside
extruded
Prior art date
Application number
PCT/CN2015/083432
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English (en)
Chinese (zh)
Inventor
潘艺新
许波华
蓝燕锐
赵瑞静
黄德兵
Original Assignee
中天日立射频电缆有限公司
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Application filed by 中天日立射频电缆有限公司 filed Critical 中天日立射频电缆有限公司
Publication of WO2016078428A1 publication Critical patent/WO2016078428A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/06—Coaxial lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave

Definitions

  • the invention relates to an embedded optical cable composite leakage coaxial cable and a manufacturing method thereof, which not only retains all the performance advantages of the leaky coaxial cable, but also increases the optical cable compared to a single leaky coaxial cable product. Performance advantage.
  • the optical cable is embedded in the design, and the optical cable has a relatively stable external environment in the process of transmitting optical signals, which reduces the influence of uncertainties in the external environment. Effectively ensure reliable and stable transmission of optical signal information.
  • the leaky coaxial cable can fully utilize the performance advantages of the optical cable, effectively change the environment of the inner conductor, increase the transmission rate, and reduce the attenuation. Therefore, the invention relates to an in-line cable composite leaky coaxial cable.
  • the conventional leaky coaxial cable can basically satisfy the effective propagation of signals such as mountains, hills, tunnels, underground railways, mines, underground buildings, shopping malls or other electromagnetic fields to provide a sufficiently large electromagnetic field.
  • signals such as mountains, hills, tunnels, underground railways, mines, underground buildings, shopping malls or other electromagnetic fields to provide a sufficiently large electromagnetic field.
  • an optical cable is required to transmit the optical signal.
  • the space for housing cables is very limited, and it is not suitable for installing leaky coaxial cables and cables at the same time.
  • an in-line cable-type leaky coaxial cable was developed to meet the diverse needs of the market.
  • the object of the present invention is to provide an embedded optical cable composite leakage coaxial cable and a manufacturing method thereof for the above-mentioned deficiencies, and to integrate the optical cable composite leakage of the present invention in order to realize the diversified demand for electromagnetic field propagation electrical signals and optical signals to be simultaneously propagated.
  • the coaxial cable is properly combined by the embedded optical cable to form a composite structure, which ensures that the cable has both the electrical performance of the leaky coaxial cable and the electrical performance of the optical cable, and is a multifunctional new product. .
  • the embedded optical cable composite leakage coaxial cable comprises an optical cable, a braided copper tube, a polyethylene foamed insulation layer, a slotted copper strip and a polyolefin outer sheath; the optical cable is wrapped in the braided copper tube, and the braided copper tube is wrapped
  • the outer layer is extruded with a polyethylene foamed insulation layer, and a layer of slotted copper strip is wrapped on the outside of the polyethylene foamed insulation layer, and a polyolefin outer sheath is extruded on the outside of the slotted copper strip.
  • the optical cable comprises a central reinforcing core, an optical fiber unit, a plastic coated aluminum tube and a polyethylene outer sheath; a single optical fiber unit is surrounded around the central reinforcing core, and a plastic coated aluminum tube is wrapped on the outer side of the optical fiber unit.
  • the outer surface of the plastic aluminum tube is extruded with a polyethylene outer sheath.
  • a reinforcing core is arranged in the center of the cable to facilitate the wrapping of the single-core cable while increasing the strength of the cable and the leaky coaxial cable.
  • the fiber optic cable can be composed of a single fiber unit or a plurality of fiber units according to the needs of the customer.
  • a single fiber unit is surrounded around the center reinforcing core, and a plastic coated aluminum tube is wrapped on the outside of the fiber unit.
  • the outer surface of the aluminum tube is extruded with a polyethylene outer sheath, and the outer diameter of the optical cable is required to be smaller than the inner diameter of the braided copper tube.
  • the copper strip is trimmed by the copper strip, it is bent into a circular shape through the U-shaped groove, the optical cable is wrapped inside, and it is welded into a closed copper tube by argon arc welding gas welding.
  • the eccentric weaving method makes the smooth copper tube into a spiral-shaped copper tube, and the weld seam is not required to have a problem of virtual welding.
  • the thickness of the copper strip should conform to the standard; the peaks, troughs and pitch of the zigzag formation should be within strict control requirements.
  • the extruded polyethylene foam insulation layer is continued in the physical foaming production line.
  • the endothelium material is squeezed on the outside of the braided copper tube.
  • the endothelium material is made of low-density polyethylene.
  • the temperature of the endothelial extruder is controlled at 140 ° C ⁇ 200 ° C, and the surface is directly extruded to the outside of the braided copper tube.
  • An endothelial layer is formed; then a polyethylene foamed insulation layer is extruded outside the endothelial layer.
  • the polyethylene foam insulation material is a mixture of low density polyethylene, high density polyethylene and nucleating agent, and the weight ratio of low density polyethylene, high density polyethylene and nucleating agent is 74:25:1;
  • the material of the nucleating agent is a polyethylene material.
  • the mixture is injected with nitrogen or carbon dioxide gas at a high pressure in a molten state at 130 ° C to 200 ° C. Under the action of rotation and shear of the screw, the molten plastic and the gas are thoroughly mixed, and the molten polyethylene mixture and the gas are mixed and nucleated, and the foaming mixture is passed.
  • the extrusion head is uniformly and stably extruded, coated on the outside of the above-mentioned braided copper tube extruded with the endothelial layer to form a polyethylene foamed insulation layer, and the temperature of the extruder is controlled at 130 ° C to 200 ° C. After the temperature of the hot water bath is cooled (35 ° C ⁇ 40 ° C), it is cooled by a cold water tank (20 ° C ⁇ 30 ° C), dried, and finally wound on the disc. It is required that no cell can be formed between the inner layer and the polyethylene foam insulating layer, and the outer surface of the polyethylene foamed insulating layer is smooth, round, without bulging, eccentricity and ellipticity ⁇ 4%.
  • slotted copper strip manufacturing process slotted copper strip is automatically punched according to pre-designed groove structure, and size punching, punching pitch deviation ⁇ 0.15mm, punching hole difference ⁇ 0.2mm, slot Complete without burr, copper without oxidation, according to different performance requirements of customers, choose the corresponding groove type, the groove spacing and stroke of the punch must be within the required range
  • the surface of the polyolefin outer sheath of the in-line composite leaky coaxial cable should be complete, without holes and cracks.
  • the embedded optical cable composite leakage coaxial cable of the invention and the manufacturing method thereof have the following features:
  • the embedded optical cable composite leakage coaxial cable and the manufacturing method thereof relate to the market diversification.
  • the composite leaky coaxial cable can have a wider market space and realize a multi-purpose cable.
  • the optical cable Adopting the built-in design of optical cable, the optical cable has a relatively stable external environment in the process of transmitting optical signals, which reduces the influence of uncertain factors in the external environment. Effectively ensure reliable and stable transmission of optical signal information;
  • the embedded optical cable can strengthen the mechanical hardness of the leaky coaxial cable and is not easily crushed
  • FIG. 1 is a schematic structural view of a built-in optical cable composite leakage coaxial cable according to the present invention.
  • FIG. 2 is a schematic view showing the structure of an optical cable with a built-in optical cable composite leakage coaxial cable according to the present invention
  • FIG. 3 is a process flow diagram of a method for fabricating a built-in optical cable composite leaky coaxial cable according to the present invention.
  • the in-cell cable composite leakage coaxial cable includes a fiber optic cable 1, a braided copper tube 2, a polyethylene foamed insulation layer 3, a slotted copper strip 4, and a polyolefin outer sheath 5;
  • the braided copper tube 2 is wrapped with a fiber optic cable 1 , and a polyethylene foamed insulating layer is extruded outside the braided copper tube 2, and a layer of slotted copper strip 4 is wrapped on the outside of the polyethylene foamed insulating layer 3 to be slotted.
  • the outer surface of the copper strip 4 is extruded with a polyolefin outer sheath.
  • the optical cable 1 comprises a central reinforcing core 1-1, an optical fiber unit 1-2, a plastic coated aluminum tube 1-3 and a polyethylene outer sheath 1-4; a single fiber unit is surrounded around the central reinforcing core 1-1. 1-2, a plastic coated aluminum tube 1-3 is wrapped on the outer side of the optical fiber unit 1-2, and a polyethylene outer sheath 1-4 is extruded on the outer surface of the plastic coated aluminum tube 1-3.
  • a center reinforcing core 1-1 is disposed at the center of the optical cable 1 to facilitate the wrapping of the single-core optical cable while increasing the strength of the optical cable and the leaky coaxial cable.
  • the fiber optic cable can be composed of a single fiber unit or a plurality of fiber units according to the needs of the customer.
  • a single fiber unit is surrounded around the center reinforcing core, and a plastic coated aluminum tube is wrapped on the outside of the fiber unit.
  • Extrusion of aluminum tube The outer sheath of the polyethylene requires that the outer diameter of the optical cable is smaller than the inner diameter of the braided copper tube to meet the requirements.
  • the copper strip is trimmed by the copper strip, it is bent into a circular shape through the U-shaped groove, the optical cable is wrapped inside, and it is welded into a closed copper tube by argon arc welding gas welding.
  • the eccentric weaving method makes the smooth copper tube into a spiral-shaped copper tube, and the weld seam is not required to have a problem of virtual welding.
  • the thickness of the copper strip should conform to the standard; the peaks, troughs and pitch of the zigzag formation should be within strict control requirements.
  • the extruded polyethylene foam insulation layer is continued in the physical foaming production line.
  • the endothelium material is squeezed on the outside of the braided copper tube.
  • the endothelium material is made of low-density polyethylene.
  • the temperature of the endothelial extruder is controlled at 140 ° C ⁇ 200 ° C, and the surface is directly extruded to the outside of the braided copper tube.
  • An endothelial layer is formed; then a polyethylene foamed insulation layer is extruded outside the endothelial layer.
  • the polyethylene foam insulation material is a mixture of low density polyethylene, high density polyethylene and nucleating agent, and the weight ratio of low density polyethylene, high density polyethylene and nucleating agent is 74:25:1;
  • the material of the nucleating agent is a polyethylene material.
  • the mixture is injected with nitrogen or carbon dioxide gas at a high pressure in a molten state at 130 ° C to 200 ° C. Under the action of rotation and shear of the screw, the molten plastic and the gas are thoroughly mixed, and the molten polyethylene mixture and the gas are mixed and nucleated, and the foaming mixture is passed.
  • the extrusion head is uniformly and stably extruded, coated on the outside of the above-mentioned braided copper tube extruded with the endothelial layer to form a polyethylene foamed insulation layer, and the temperature of the extruder is controlled at 130 ° C to 200 ° C. After the temperature of the hot water bath is cooled (35 ° C ⁇ 40 ° C), it is cooled by a cold water tank (20 ° C ⁇ 30 ° C), dried, and finally wound on the disc. It is required that no cell can be formed between the inner layer and the polyethylene foam insulating layer, and the outer surface of the polyethylene foamed insulating layer is smooth, round, without bulging, eccentricity and ellipticity ⁇ 4%.
  • slotted copper strip manufacturing process slotted copper strip is automatically punched according to pre-designed groove structure, and size punching, punching pitch deviation ⁇ 0.15mm, punching hole difference ⁇ 0.2mm, slot Complete without burr, copper without oxidation, according to different performance requirements of customers, choose the corresponding groove type, the groove spacing and stroke of the punch must be within the required range
  • the surface of the polyolefin outer sheath of the in-line composite leaky coaxial cable should be complete, without holes and cracks.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Waveguide Aerials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention porte sur un câble coaxial à fuite composite à câble optique intégré, qui comprend un câble optique (1), un tube de cuivre ondulé (2), une couche d'isolation en mousse de polyéthylène (3), une bande de cuivre à fentes (4) et une gaine extérieure en polyoléfine (5) ; le tube de cuivre ondulé (2) revêt l'extérieur du câble optique (1), la couche d'isolation en mousse de polyéthylène (3) est extrudée à l'extérieur du tube de cuivre ondulé (2), une couche de bande de cuivre à fentes (4) revêt l'extérieur de la couche d'isolation en mousse de polyéthylène (3), et la gaine extérieure en polyoléfine (5) est extrudée à l'extérieur de la bande de cuivre à fentes (4). Avec un câble optique intégré en son sein, le câble coaxial à fuite composite à câble optique intégré est combiné raisonnablement pour former une structure composite, qui assure que le câble non seulement présente les performances électriques du câble coaxial à fuite, mais en outre se voit conférer les performances électriques du câble optique ; par conséquent, le câble est un nouveau produit multifonction.
PCT/CN2015/083432 2014-11-18 2015-07-07 Câble coaxial à fuite composite à câble optique intégré, et son procédé de fabrication WO2016078428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410653327.9 2014-11-18
CN201410653327.9A CN104362418B (zh) 2014-11-18 2014-11-18 内嵌光缆复合型漏泄同轴电缆及其制作方法

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108063303A (zh) * 2017-12-18 2018-05-22 江苏俊知技术有限公司 一种容易加工、具有线性相位-温度关系的稳相同轴电缆及其四氟乙烯泡沫材料的制作方法
CN108407263A (zh) * 2018-04-25 2018-08-17 福建通宇电缆有限公司 电缆挤塑出料生产线
WO2022143346A1 (fr) * 2020-12-31 2022-07-07 江苏俊知技术有限公司 Ensemble câble coaxial à fuite applicable à une communication 5g et procédé de fabrication associé

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CN105068198A (zh) * 2015-07-20 2015-11-18 四川天邑康和通信股份有限公司 物理发泡被覆层的紧套光纤的生产工艺
CN107577020A (zh) * 2017-10-27 2018-01-12 江苏法尔胜光通有限公司 加强微型气吹光纤单元及制造方法
CN107819178A (zh) * 2017-11-06 2018-03-20 江苏亨鑫科技有限公司 一种5g频段专用超柔低损同轴电缆及其制备方法
CN109066093B (zh) * 2018-08-07 2019-06-21 江苏亨鑫科技有限公司 一种漏缆外导体开槽的生产工艺
CN110492211A (zh) * 2019-08-21 2019-11-22 上海传输线研究所（中国电子科技集团公司第二十三研究所） 一种漏泄波导及其制作方法
CN116985370A (zh) * 2023-09-27 2023-11-03 长飞光纤光缆股份有限公司 同轴电缆生产方法、同轴电缆及塔式同轴电缆生产线

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CN204205014U (zh) * 2014-11-18 2015-03-11 中天日立射频电缆有限公司 内嵌光缆复合型漏泄同轴电缆

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Publication number Priority date Publication date Assignee Title
WO1994022039A1 (fr) * 1993-03-16 1994-09-29 W.L. Gore & Associates, Inc. Cable coaxial a fibre optique et assemblage avec un connecteur
JPH07211160A (ja) * 1994-01-10 1995-08-11 Sumitomo Electric Ind Ltd 光導波路被覆電力ケーブル
CN101075008A (zh) * 2007-06-27 2007-11-21 马先正 松套型管光缆
CN103000291A (zh) * 2012-10-08 2013-03-27 江苏俊知技术有限公司 新型结构的射频同轴电缆和光纤混合缆
CN204205014U (zh) * 2014-11-18 2015-03-11 中天日立射频电缆有限公司 内嵌光缆复合型漏泄同轴电缆

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108063303A (zh) * 2017-12-18 2018-05-22 江苏俊知技术有限公司 一种容易加工、具有线性相位-温度关系的稳相同轴电缆及其四氟乙烯泡沫材料的制作方法
CN108063303B (zh) * 2017-12-18 2023-08-29 江苏俊知技术有限公司 一种容易加工、具有线性相位-温度关系的稳相同轴电缆及其四氟乙烯泡沫材料的制作方法
CN108407263A (zh) * 2018-04-25 2018-08-17 福建通宇电缆有限公司 电缆挤塑出料生产线
CN108407263B (zh) * 2018-04-25 2023-12-12 昆明电缆集团电线有限公司 电缆挤塑出料生产线
WO2022143346A1 (fr) * 2020-12-31 2022-07-07 江苏俊知技术有限公司 Ensemble câble coaxial à fuite applicable à une communication 5g et procédé de fabrication associé

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