WO2021082686A1 - 一种室内无线分布系统用光电复合缆及其制备方法 - Google Patents

一种室内无线分布系统用光电复合缆及其制备方法 Download PDF

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WO2021082686A1
WO2021082686A1 PCT/CN2020/111636 CN2020111636W WO2021082686A1 WO 2021082686 A1 WO2021082686 A1 WO 2021082686A1 CN 2020111636 W CN2020111636 W CN 2020111636W WO 2021082686 A1 WO2021082686 A1 WO 2021082686A1
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composite cable
skeleton
photoelectric composite
sheath
polyester tape
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PCT/CN2020/111636
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English (en)
French (fr)
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王婷婷
高峰
张瑜
沈晨曦
张文美
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江苏亨通光电股份有限公司
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Publication of WO2021082686A1 publication Critical patent/WO2021082686A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • 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
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
    • 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
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • 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
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • 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
    • G02B6/4479—Manufacturing methods of optical 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
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/02—Stranding-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0045—Cable-harnesses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
    • H01B7/1815—Protections not provided for in groups H01B7/182 - H01B7/26 composed of longitudinal inserts
    • 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
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4436—Heat resistant

Definitions

  • the invention relates to the technical field of a photoelectric composite cable structure, in particular to a photoelectric composite cable for an indoor wireless distribution system.
  • the invention also provides a method for preparing the photoelectric composite cable.
  • optical composite cables are required to support 4G and 5G indoor small base stations at the same time. They can be based on the CAT6A network cable or optical fiber laid during 4G deployment to minimize project construction and not change the indoor network plan.
  • the existing photoelectric composite cable its structure is shown in Figure 1, which includes a set of power cords, and located in the outer sheath and polyester tape.
  • Figure 1 includes a set of power cords, and located in the outer sheath and polyester tape.
  • a set of butterfly cables arranged at intervals by power lines in the cavity has a relatively small capacity and cannot meet the needs of 5G. If the diameter of the photoelectric composite cable set according to the structure to meet the 5G needs is too large, there is an urgent need for a A photoelectric composite cable with a small diameter that can meet the needs of the current stage.
  • the present invention provides a photoelectric composite cable for indoor wireless distribution system, which has low cost, small outer diameter, large capacity and light weight, and meets the communication requirements of 4G and 5G at the same time, and one cable has multiple uses.
  • a photoelectric composite cable for an indoor wireless distribution system which is characterized in that it includes two power cords, four sets of wire pairs, and an optical unit, and also includes a skeleton, and seven radially laterally convex cables of the skeleton
  • the cavity is divided into seven skeleton cavities.
  • Two power cords, four groups of wire pairs, and a light unit are respectively arranged in the corresponding skeleton cavity to form an integral structure.
  • the outer periphery of the integral structure is covered with polyester tape, and the poly
  • the outer periphery of the ester tape is covered with an outer sheath
  • the light unit includes a flame-retardant sheath with a circular cross section and an aramid reinforcement ring arranged in sequence from the outside to the inside.
  • the inner cavity of the aramid reinforcement ring is An optical fiber is provided inside.
  • the number of cores of the optical fiber is set according to requirements, and the density of the optical fiber is high;
  • the optical fiber in the optical unit adopts a tight-buffered structure or a bare fiber structure, and the flame-retardant sheath makes the flame-retardant performance of the optical unit meet the OFNR level, and the aramid reinforcement ring in the optical unit improves the tensile resistance;
  • the material of the outer sheath is specifically environmentally friendly polyvinyl chloride or a low-smoke and halogen-free material.
  • the flame retardant performance reaches the IEC 60332-3C bunched combustion level;
  • the polyester tape is wrapped with an aluminum foil shielding layer, and the outer periphery of the aluminum foil shielding layer is wrapped with the outer sheath;
  • Each power cord is made of a large-diameter conductor or several small-diameter conductors that are twisted and then covered with an insulating protective layer. It has the characteristics of internal energization and external insulation. The two power cords can be twisted with RJ45 connectors. Quick connection.
  • a method for preparing a photoelectric composite cable which is characterized in that the power cord, the wire pair, and the optical unit are separately produced, and then the two sheathed power cords and the four twisted wire pairs are completed to complete the sheathing process.
  • the light unit is placed in the corresponding skeleton groove of the skeleton to form an integral structure, and then a polyester tape is wrapped around the outer periphery of the integral structure, and then a layer of outer sheath is extruded on the outer periphery of the polyester tape.
  • an aluminum foil shielding process is set between the polyester tape wrapping and the outer sheath to ensure the shielding and anti-interference ability of the overall composite cable;
  • the copper wire of the corresponding size is stored in the warehouse, and then the outer circumference of the copper wire is wrapped with an insulating protective layer;
  • the copper wire of the corresponding size is stored in the warehouse, and then the outer periphery of the copper wire is wrapped with an insulating sheath, and then twisted to form the corresponding wire pair, and then covered with the sheath;
  • the optical fiber When the optical unit is made, after the optical fiber is stored in the warehouse, the optical fiber adopts a tight-buffered structure or a bare fiber structure, and then is sequentially coated with an aramid reinforced ring and a flame-retardant sheath.
  • the cable cavity is divided into seven skeleton cavities due to the seven radial side protrusions of the skeleton, and two power cables, four sets of wire pairs, and an optical unit are respectively arranged in the corresponding skeleton cavities to form an integral structure.
  • the outer circumference of the overall structure is covered with a polyester tape, and the outer circumference of the polyester belt is covered with an outer sheath.
  • the optical unit includes a flame-retardant sheath and an aramid reinforced ring which are arranged in sequence from the outside to the inside.
  • An optical fiber is arranged in the inner cavity of the aramid reinforced ring.
  • the optical unit has the advantages of increased capacity, long transmission distance, strong anti-interference ability, and low attenuation.
  • the reliability of the optical cable can be improved.
  • the production process is simple, and there is no need to add filler materials, which can reduce the outer diameter and occupied space, and reduce the amount of raw materials used.
  • Fig. 1 is a schematic diagram of a cross-sectional structure of an existing photoelectric composite cable
  • Figure 2 is a schematic cross-sectional view of the structure of the present invention.
  • Power cord 1 wire pair 2
  • optical unit 3 skeleton 4
  • radial side protrusion 41 skeleton cavity 5
  • polyester tape 6 outer sheath 7
  • aramid reinforced ring 9 optical fiber 10
  • Aluminum foil shielding layer 11 Aluminum foil shielding layer 11.
  • a photoelectric composite cable for indoor wireless distribution system as shown in Figure 2: It includes two power cords 1, four pairs of wires 2, an optical unit 3, and it also includes a skeleton 4 and seven radial sides of the skeleton 4 The protrusion 41 divides the cable cavity into seven skeleton cavities 5.
  • Two power cables 1, four groups of wire pairs 2, and an optical unit 3 are respectively arranged in the corresponding skeleton cavity 5 to form an integral structure, and the outer circumference of the integral structure is covered with Polyester tape 6, the outer periphery of the polyester tape 6 is covered with an outer sheath 7, and the optical unit 3 includes a flame-retardant sheath 8 with a circular cross section arranged in sequence from the outside to the inside, an aramid reinforcing ring 9, and An optical fiber 10 is arranged in the inner cavity of the fiber reinforced ring 9.
  • the number of cores of the optical fiber 10 is set according to requirements, and the density of the optical fiber is high;
  • the four sets of wire pairs 2 are arranged adjacent to the four adjacent skeleton cavities 5, and the two power cords 1 are arranged in two adjacent skeleton cavities 5, and the optical unit 3 corresponds to the side of the skeleton cavity 5
  • the skeleton cavity 5 is provided with a corresponding wire pair 2 and the other side is provided with a skeleton cavity 5 provided with a corresponding power cord 1;
  • the optical fiber 10 in the optical unit 3 adopts a tight-buffered structure or a bare fiber structure.
  • the flame-retardant sheath 8 makes the flame retardant performance of the optical unit meet the OFNR level, and the aramid reinforcement ring 9 in the optical unit 3 improves the tensile resistance;
  • outer sheath 7 is extruded on the outer periphery of the polyester tape.
  • the material of the outer sheath 7 is specifically environmentally friendly PVC or low-smoke and halogen-free. The performance reaches the IEC60332-3C bundle combustion level;
  • the polyester tape 6 is wrapped with an aluminum foil shielding layer 11, and the outer periphery of the aluminum foil shielding layer 11 is wrapped with an outer sheath 7;
  • Each power cord 1 is made of a large-diameter conductor or several small-diameter conductors that are twisted and then covered with an insulating protective layer. It has the characteristics of internal energization and external insulation. After two power lines are twisted, they can be quickly connected to the RJ45 connector.
  • a method for preparing a photoelectric composite cable separately make power cords, wire pairs, and optical units separately, and then place two sheathed power cords, four twisted wire pairs, and sheathing process optical units.
  • a whole structure is formed in the corresponding skeleton groove of the skeleton, and then a polyester tape is wrapped around the outer circumference of the whole structure, and then a layer of outer sheath is extruded on the outer circumference of the polyester tape.
  • An aluminum foil shielding process is set between the polyester tape wrapping and the outer sheath to ensure the shielding and anti-interference ability of the overall composite cable;
  • the copper wire of the corresponding size is stored in the warehouse, and then the outer circumference of the copper wire is wrapped with an insulating protective layer;
  • the copper wire of the corresponding size is stored in the warehouse, and then the outer periphery of the copper wire is wrapped with an insulating sheath, and then twisted to form the corresponding wire pair, and then covered with the sheath;
  • the optical fiber When the optical unit is made, after the optical fiber is stored in the warehouse, the optical fiber adopts a tight-buffered structure or a bare fiber structure, and then is sequentially coated with an aramid reinforced ring and a flame-retardant sheath.
  • the working principle is as follows: Since the seven radial side protrusions of the skeleton divide the cable cavity into seven skeleton cavities, two power cables, four sets of wire pairs, and an optical unit are respectively arranged in the corresponding skeleton cavity to form an overall structure.
  • the outer circumference of the overall structure is covered with a polyester tape, and the outer circumference of the polyester belt is covered with an outer sheath.
  • the optical unit includes a flame-retardant sheath and an aramid reinforced ring which are arranged in sequence from the outside to the inside.
  • An optical fiber is arranged in the inner cavity of the aramid reinforced ring.
  • the optical unit has the advantages of increased capacity, long transmission distance, strong anti-interference ability, and low attenuation.
  • the reliability of the optical cable can be improved.
  • the production process is simple, and there is no need to add filler materials, which can reduce the outer diameter and occupied space, and reduce the amount of raw materials used.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)

Abstract

本发明提供了一种室内无线分布系统用光电复合缆，其成本低、外径小，容量大、重量轻，且同时满足4G和5G的通讯需求、一缆多用。其包括两根电源线、四组线对、一根光单元，其还包括有骨架，所述骨架的七个径向侧凸将缆腔分隔为七个骨架腔，两根电源线、四组线对、一根光单元分别布置于对应的骨架腔后形成整体结构，所述整体结构的外周包覆有聚酯带，所述聚酯带的外周包覆有外护套，所述光单元包括由外向内依次排列的横截面为圆环状的阻燃护套、芳纶加强环件，所述芳纶加强环件的内腔内设置有光纤。

Description

一种室内无线分布系统用光电复合缆及其制备方法 技术领域
本发明涉及光电复合缆结构的技术领域，具体为一种室内无线分布系统用光电复合缆，本发明还提供了该光电复合缆的制备方法。
背景技术
随着4G技术的日渐成熟和5G技术的发展，无线通信领域中用于无线信号覆盖中的小基站越来越多，但由于5G网络建设综合造价是4G的5倍以上，4G不会被5G取代，5G将与4G长期共存，长期来看，需要光电复合缆可同时支持4G和5G室内小基站，可基于4G部署时铺设的CAT6A网线或光纤，以最简工程施工和不改变室内网规的方式实现向5G演进，进而解决网络建设中成本高的问题，现有的光电复合缆、其结构见图1，其包括一组电源线、以及位于外护套和聚酯带所形成的内腔内通过电源线间隔布置的一组蝶缆，其容量相对较小，不能满足5G的需求，且如果根据该结构设置的满足5G需求的光电复合缆的直径太大，为此，急需一种能够满足现阶段需求的直径小的光电复合缆。
发明内容
针对上述问题，本发明提供了一种室内无线分布系统用光电复合缆，其成本低、外径小，容量大、重量轻，且同时满足4G和5G的通讯需求、一缆多用。
一种室内无线分布系统用光电复合缆，其特征在于：其包括两根电源线、四组线对、一根光单元，其还包括有骨架，所述骨架的七个径向侧凸将缆腔分隔为七个骨架腔，两根电源线、四组线对、一根光单元分别布置于对应的 骨架腔后形成整体结构，所述整体结构的外周包覆有聚酯带，所述聚酯带的外周包覆有外护套，所述光单元包括由外向内依次排列的横截面为圆环状的阻燃护套、芳纶加强环件，所述芳纶加强环件的内腔内设置有光纤。
其进一步特征在于：
所述光纤的芯数为根据需求设置、光纤的密度大；
四组线对相邻排布于相邻的四个所述骨架腔布置，两根电源线排布于相邻的两个所述骨架腔布置，所述光单元所对应的骨架腔的一侧骨架腔设置有对应的线对、另一侧设置有骨架腔设置有对应的电源线；
所述光单元内的光纤采用紧套结构或裸纤结构，阻燃护套使得光单元的阻燃性能满足OFNR级别，同时光单元内的芳纶加强环件使得抗拉性提升；
所述聚酯带绕包完成后，在聚酯带的外周挤制一层外护套，所述外护套的材料具体为环保聚氯乙烯或低烟无卤材料，一次护套成型、其阻燃性能达到IEC 60332-3C成束燃烧等级；
所述聚酯带绕包后包覆有铝箔屏蔽层，所述铝箔屏蔽层的外周包覆有所述外护套；
每根所述电源线由一根大径导体或若干小径导体绞合后外包绝缘保护层制成，其具有内通电、外绝缘特征，两根所述电源线绞合后可与RJ45接头可实现快速连接。
一种光电复合缆的制备方法，其特征在于：分别独立制作电源线、线对、光单元，之后将两根完成护套的电源线、四根已经绞合成型的线对、完成护套工序的光单元置于骨架的对应骨架槽内、形成整体结构，然后在整体结构的外周进行聚酯带绕包，然后在聚酯带的外周挤制一层外护套。
其进一步特征在于：在聚酯带绕包和外护套之间设置铝箔屏蔽工序，确保整体复合缆的屏蔽和抗干扰能力；
电源线制作时，对应尺寸的铜导线入库，之后在铜导线的外周外包绝缘保护层制成；
线对制作时，对应尺寸的铜导线入库，之后在铜导线的外周外包绝缘护套，然后对绞形成对应的线对，然后包覆护套；
光单元制作时，光纤入库后，光纤采用紧套结构或裸纤结构，之后顺次包覆芳纶加强环件、阻燃护套。
采用本发明后，由于骨架的七个径向侧凸将缆腔分隔为七个骨架腔，两根电源线、四组线对、一根光单元分别布置于对应的骨架腔后形成整体结构，整体结构的外周包覆有聚酯带，聚酯带的外周包覆有外护套，光单元包括由外向内依次排列的横截面为圆环状的阻燃护套、芳纶加强环件，芳纶加强环件的内腔内设置有光纤，其光单元具有容量增大，传输距离长，抗干扰能力强、衰减小等优势，采用芳纶加强环件作为加强件，光缆的可靠性能提升，实现网络建设中的小基站间的光互联，提供巨大数据流量，其在保证传输性能的同时，制作工艺简单，也无需添加填充材料，能够减小外径和占用空间，减少原材料使用量，降低产品成本、制作成本和施工成本；其成本低、外径小，容量大、重量轻，且同时满足4G和5G的通讯需求、一缆多用。
附图说明
图1为现有的光电复合缆的横截面剖视结构示意图；
图2为本发明的横截面剖视结构示意图；
图2中序号所对应的名称如下：
电源线1、线对2、光单元3、骨架4、径向侧凸41、骨架腔5、聚酯带6、外护套7、阻燃护套8、芳纶加强环件9、光纤10、铝箔屏蔽层11。
具体实施方式
一种室内无线分布系统用光电复合缆，见图2：其包括两根电源线1、四组线对2、一根光单元3，其还包括有骨架4，骨架4的七个径向侧凸41将缆腔分隔为七个骨架腔5，两根电源线1、四组线对2、一根光单元3分别布置于对应的骨架腔5后形成整体结构，整体结构的外周包覆有聚酯带6，聚酯带6的外周包覆有外护套7，光单元3包括由外向内依次排列的横截面为圆环状的阻燃护套8、芳纶加强环件9，芳纶加强环件9的内腔内设置有光纤10。
光纤10的芯数为根据需求设置、光纤的密度大；
四组线对2相邻排布于相邻的四个骨架腔5布置，两根电源线1排布于相邻的两个骨架腔5布置，光单元3所对应的骨架腔5的一侧骨架腔5设置有对应的线对2、另一侧设置有骨架腔5设置有对应的电源线1；
光单元3内的光纤10采用紧套结构或裸纤结构，阻燃护套8使得光单元的阻燃性能满足OFNR级别，同时光单元3内的芳纶加强环件9使得抗拉性提升；
聚酯带6绕包完成后，在聚酯带的外周挤制一层外护套7，外护套7的材料具体为环保聚氯乙烯或低烟无卤，一次护套成型、其阻燃性能达到IEC60332-3C成束燃烧等级；
具体实施例中，聚酯带6绕包后包覆有铝箔屏蔽层11，铝箔屏蔽层11的外周包覆有外护套7；
每根电源线1由一根大径导体或若干小径导体绞合后外包绝缘保护层制 成，其具有内通电、外绝缘特征，两根电源线绞合后可与RJ45接头可实现快速连接。
一种光电复合缆的制备方法：分别独立制作电源线、线对、光单元，之后将两根完成护套的电源线、四根已经绞合成型的线对、完成护套工序的光单元置于骨架的对应骨架槽内、形成整体结构，然后在整体结构的外周进行聚酯带绕包，然后在聚酯带的外周挤制一层外护套。
在聚酯带绕包和外护套之间设置铝箔屏蔽工序，确保整体复合缆的屏蔽和抗干扰能力；
电源线制作时，对应尺寸的铜导线入库，之后在铜导线的外周外包绝缘保护层制成；
线对制作时，对应尺寸的铜导线入库，之后在铜导线的外周外包绝缘护套，然后对绞形成对应的线对，然后包覆护套；
光单元制作时，光纤入库后，光纤采用紧套结构或裸纤结构，之后顺次包覆芳纶加强环件、阻燃护套。
其工作原理如下：由于骨架的七个径向侧凸将缆腔分隔为七个骨架腔，两根电源线、四组线对、一根光单元分别布置于对应的骨架腔后形成整体结构，整体结构的外周包覆有聚酯带，聚酯带的外周包覆有外护套，光单元包括由外向内依次排列的横截面为圆环状的阻燃护套、芳纶加强环件，芳纶加强环件的内腔内设置有光纤，其光单元具有容量增大，传输距离长，抗干扰能力强、衰减小等优势，采用芳纶加强环件作为加强件，光缆的可靠性能提升，实现网络建设中的小基站间的光互联，提供巨大数据流量，其在保证传输性能的同时，制作工艺简单，也无需添加填充材料，能够减小外径和占用 空间，减少原材料使用量，降低产品成本、制作成本和施工成本；其成本低、外径小，容量大、重量轻，且同时满足4G和5G的通讯需求、一缆多用。
随着3GPP R15版本(Phase1)在2017年底成功冻结，5G的脚步已逐渐临近。5G时代，有70％的业务都会发生在室内。随时随地100Mbps将成为5G室内覆盖的普遍要求，室内场景的容量密度也将在未来5年内增长8倍之多。新型光电混合缆将广泛应用于4G向5G演进的过程中，配合小基站使用，连接pRRU和DCU，从而同时解决光纤通信、电力传输和数据传输等问题，在外护套下由于内置光缆单元、电源线和数据电缆，实现宽频率信号的传输和电力传输，传输安全可靠，抗干扰能力大大增强，而且达到了一缆多用的的效果，同时，具有外径大大减小，可选择性的选用单元缆，将多种用途的单元缆一次性安装到布线工程中，不但节省布线的时间和空间，也将进一步降低安装成本。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (10)

  1. 一种室内无线分布系统用光电复合缆，其特征在于：其包括两根电源线、四组线对、一根光单元，其还包括有骨架，所述骨架的七个径向侧凸将缆腔分隔为七个骨架腔，两根电源线、四组线对、一根光单元分别布置于对应的骨架腔后形成整体结构，所述整体结构的外周包覆有聚酯带，所述聚酯带的外周包覆有外护套，所述光单元包括由外向内依次排列的横截面为圆环状的阻燃护套、芳纶加强环件，所述芳纶加强环件的内腔内设置有光纤。
  2. 如权利要求1所述的一种室内无线分布系统用光电复合缆，其特征在于：四组线对相邻排布于相邻的四个所述骨架腔布置，两根电源线排布于相邻的两个所述骨架腔布置，所述光单元所对应的骨架腔的一侧骨架腔设置有对应的线对、另一侧设置有骨架腔设置有对应的电源线。
  3. 如权利要求2所述的一种室内无线分布系统用光电复合缆，其特征在于：所述光单元内的光纤采用紧套结构或裸纤结构。
  4. 如权利要求1所述的一种室内无线分布系统用光电复合缆，其特征在于：所述聚酯带绕包完成后，在聚酯带的外周挤制一层外护套，所述外护套的材料具体为环保聚氯乙烯或低烟无卤材料。
  5. 如权利要求1所述的一种室内无线分布系统用光电复合缆，其特征在于：所述聚酯带绕包后包覆有铝箔屏蔽层，所述铝箔屏蔽层的外周包覆有所述外护套。
  6. 如权利要求1所述的一种室内无线分布系统用光电复合缆，其特征在于：每根所述电源线由一根大径导体或若干小径导体绞合后外包绝缘保护层制成，其具有内通电、外绝缘特征，两根所述电源线绞合后可与RJ45接头可实现快速连接。
  7. 一种光电复合缆的制备方法，其特征在于：分别独立制作电源线、线对、光单元，之后将两根完成护套的电源线、四根已经绞合成型的线对、完成护套工序的光单元置于骨架的对应骨架槽内、形成整体结构，然后在整体结构的外周进行聚酯带绕包，然后在聚酯带的外周挤制一层外护套。
  8. 如权利要求7所述的一种光电复合缆的制备方法，其特征在于：在聚酯带绕包和外护套之间设置铝箔屏蔽工序，确保整体复合缆的屏蔽和抗干扰能力。
  9. 如权利要求7所述的一种光电复合缆的制备方法，其特征在于：电源线制作时，对应尺寸的铜导线入库，之后在铜导线的外周外包绝缘保护层制成；
    线对制作时，对应尺寸的铜导线入库，之后在铜导线的外周外包绝缘护套，然后对绞形成对应的线对，然后包覆护套。
  10. 如权利要求7所述的一种光电复合缆的制备方法，其特征在于：光单元制作时，光纤入库后，光纤采用紧套结构或裸纤结构，之后顺次包覆芳纶加强环件、阻燃护套。
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