WO2022135030A1 - 一种易开剥扁平分支拉远光缆 - Google Patents

一种易开剥扁平分支拉远光缆 Download PDF

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WO2022135030A1
WO2022135030A1 PCT/CN2021/133541 CN2021133541W WO2022135030A1 WO 2022135030 A1 WO2022135030 A1 WO 2022135030A1 CN 2021133541 W CN2021133541 W CN 2021133541W WO 2022135030 A1 WO2022135030 A1 WO 2022135030A1
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flat
optical
easy
reinforcing member
sheath layer
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PCT/CN2021/133541
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English (en)
French (fr)
Inventor
沈晨曦
夏文奎
张鑫元
陈丹宇
聂涛涛
赵博
黄强
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江苏亨通光电股份有限公司
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Priority to GB2206211.1A priority Critical patent/GB2608254A/en
Publication of WO2022135030A1 publication Critical patent/WO2022135030A1/zh

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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
    • 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
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea 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
    • G02B6/4432—Protective covering with fibre reinforcements

Definitions

  • the invention relates to the technical field of optical cable structures, in particular to an easy-to-open and stripped flat branched remote optical cable.
  • optical fiber and cable industry As an important part of electronic communication, the optical fiber and cable industry has made great contributions to the development of the national economy. The optical fiber and cable industry has promoted the system effect of the electronic information industry. , the optical fiber and cable industry has become an important support for the adoption of FTTH and FTTA systems in my country, the integration of triple play, large-scale 4G construction, and 5G exploration.
  • Existing remote optical cables and branch optical cables generally use sub-units and filling ropes to strengthen the structure, and adopt helical twisting method in structural design. high.
  • the present invention provides an easy-to-open and stripped flat branch remote optical cable, which satisfies the mechanical environmental performance of anti-stretching, anti-squashing, anti-radiation, and long service life, and can satisfy both outdoor remote use and indoor wiring. use.
  • An easy-opening and stripping flat branch pull-out optical cable is characterized in that: it includes a central reinforcing member, and an optical unit is respectively provided on both sides of the central reinforcing member, and the two optical units and the central reinforcing member are in a cross-sectional state.
  • a straight line arrangement is formed at the bottom, and the outer periphery of the two optical units and the central reinforcing member is covered with a flat sheath layer, and the outer periphery of the flat sheath layer is provided with a number of concave peeling grooves.
  • the outer diameter of the central reinforcement is the same as the outer diameter of the light units on both sides, so that the three units form an integral structure with the same thickness;
  • the central reinforcement includes a central FRP reinforcement and an outer peripheral sheath layer;
  • the center of the optical unit is an optical fiber arrangement area, and the outer periphery of the optical fiber arrangement area is sequentially coated with an aramid fiber sand layer and an inner sheath layer, and the specific material of the inner sheath layer is LSZH sheath material;
  • the optical fiber arrangement area is specifically a plurality of bare fibers or a single tightly sheathed fiber
  • the flat sheath layer is extruded from an anti-adhesion LSZH sheath material, and the outer peripheral area of the flat sheath layer corresponding to the light units on both sides is an arc structure.
  • the structure is simple, the outer diameter is small, and the stripping groove is designed to improve the construction efficiency, and at the same time, it can be used as a remote optical cable and a branch optical cable to be easily marketed; it can meet the laying environment of traditional remote optical cables.
  • the relatively cheap FRP reinforcement is used to replace part of the aramid fiber yarn as the main load-bearing element.
  • the cost of the product is economical, which provides assistance for the promotion and application of the product; And the product has a compact structure, superior compressive performance and environmental performance, and can meet the application environment of 4000N/100mm or more compressive and -40-85C; it can meet the mechanical environmental performance of tensile resistance, flattening resistance, radiation resistance and long life. , which can meet both outdoor remote use and indoor wiring use.
  • FIG. 1 is a cross-sectional structural schematic diagram of a specific embodiment of the present invention.
  • Center reinforcement 1 center FRP reinforcement 11, sheath layer 12, optical unit 2, aramid fiber sand layer 21, inner sheath layer 22, single fiber 23, tight sheath layer 24, flat sheath layer 3, open Strip slot 4.
  • An easy-to-open and stripped flat branched and remote optical cable see Figure 1: it includes a central reinforcement 1, and an optical unit 2 is respectively provided on both sides of the central reinforcement 1, and the two optical units 2 and the central reinforcement 1 are in cross-section.
  • the outer periphery of the two optical units 2 and the central reinforcement 1 is covered with a flat sheath layer 3
  • the outer periphery of the flat sheath layer 3 is provided with several concave peeling grooves 4 .
  • the outer diameter of the central reinforcement 1 is the same as the outer diameter of the light units 2 on both sides, so that the three units form an integral structure with the same thickness;
  • the central reinforcement 1 includes a central FRP reinforcement 11 and an outer sheath layer 12;
  • the center of the optical unit 2 is the optical fiber arrangement area, and the outer periphery of the optical fiber arrangement area is sequentially covered with an aramid fiber sand layer 21 and an inner sheath layer 22, and the specific material of the inner sheath layer 22 is LSZH sheath material;
  • the optical fiber arrangement area is specifically a plurality of bare fibers or a single tight-coated fiber; for a specific example, see FIG.
  • the flat sheath layer 3 is extruded from an anti-adhesion LSZH sheath material, and the outer peripheral area of the flat sheath layer 3 corresponding to the light units 2 on both sides is an arc structure.
  • the optical cable has a flat structure, a double-layer sheath, and a compact product structure.
  • the product has superior compressive performance and environmental performance, and can meet the compressive resistance of 4000N/100mm and the application environment of -40-85C.
  • the optical cable adopts the central strength member as the load-bearing element to replace the filling rope of the traditional long-distance optical cable as a cost reduction measure; several concave stripping grooves are set on the outer circumference of the flat sheath layer, and the anti-adhesion LSZ material sheath is used at the same time.
  • the optical cable is easy to tear the branch, and the construction is efficient.
  • the optical unit single-core optical cable or MPO optical cable is used as the branch, which can meet the requirements of outdoor remote use and indoor wiring.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

一种易开剥扁平分支拉远光缆，其满足抗拉伸、抗压扁、抗辐射、寿命长的机械环境性能，既能满足室外拉远使用又满足室内布线使用。其包括中心加强件（1），中心加强件（1）的两侧分别设置有一根光单元（2），两根光单元（2）和中心加强件（1）在横截面状态下形成直线排布，两根光单元（2）和中心加强件（1）的外周包覆有扁平护套层（3），扁平护套层（3）的外周上设置有若干内凹的开剥槽（4）。

Description

一种易开剥扁平分支拉远光缆 技术领域
本发明涉及光缆结构的技术领域，具体为一种易开剥扁平分支拉远光缆。
背景技术
光纤光缆行业作为电子通信的重要组成部分，为国民经济的发展做出了巨大的贡献，光纤光缆行业推动了电子信息产业的体系效应，随着光纤光缆行业的发展壮大夯实了我国通信领域的基础，光纤光缆行业已经成为我国FTTH、FTTA系统的采用、三网融合以及大规模4G建设、5G探索的重要支撑。
现有拉远光缆以及分支光缆一般采用子单元及填充绳加强结构，在结构设计上采用螺旋绞合方式，生产工艺受设备限制较多，且光缆一般使用大量芳纶作为承力元件，成本较高。
发明内容
针对上述问题，本发明提供了一种易开剥扁平分支拉远光缆，其满足抗拉伸、抗压扁、抗辐射、寿命长的机械环境性能，既能满足室外拉远使用又满足室内布线使用。
一种易开剥扁平分支拉远光缆，其特征在于：其包括中心加强件，所述中心加强件的两侧分别设置有一根光单元，两根光单元和所述中心加强件在横截面状态下形成直线排布，两根光单元和所述中心加强件的外周包覆有扁平护套层，所述扁平护套层的外周上设置有若干内凹的开剥槽。
其进一步特征在于：
所述中心加强件的外径和两侧的所述光单元的外径相同，使得三个单元形成厚度一致的整体结构；
所述中心加强件包括中心FRP加强件、外周的护套层；
所述光单元的中心为光纤布置区域，所述光纤布置区域的外周顺次包覆有芳纶纤维砂层、内护套层，所述内护套层具体材质为LSZH护套料；
所述光纤布置区域具体为多根裸纤或者单根紧套纤；
所述扁平护套层为抗粘连LSZH护套料挤制而成，所述扁平护套层的对应于两侧的光单元的外周区域为圆弧结构。
采用本发明后，其结构简单、外径小，并且设计有开剥槽，提高了施工效率，同时可以作为拉远光啦和分支光缆易于市场推广；其在满足传统拉远光缆的敷设环境下，根据应用环境，使用相对便宜的FRP加强件代替部分芳纶纤维纱作为主要的承力元件，产品成本经济，为产品的推广和应用提供了助力；且光缆结构扁平，采用双层护套，并且产品结构紧凑，产品抗压性能以及环境性能优越，能满足4000N/100mm以上抗压以及-40-85C的应用环境；其满足抗拉伸、抗压扁、抗辐射、寿命长的机械环境性能，既能满足室外拉远使用又满足室内布线使用。
附图说明
图1为本发明具体实施例的横截面剖视结构示意图；
图中序号所对应的名称如下：
中心加强件1、中心FRP加强件11、护套层12、光单元2、芳纶纤维砂层21、内护套层22、单根光纤23、紧套层24、扁平护套层3、开剥槽4。
具体实施方式
一种易开剥扁平分支拉远光缆，见图1：其包括中心加强件1，中心加强件1的两侧分别设置有一根光单元2，两根光单元2和中心加强件1在横截面状态下形成直线排布，两根光单元2和中心加强件1的外周包覆有扁平护套层3，扁平护套层3的外周上设置有若干内凹的开剥槽4。
中心加强件1的外径和两侧的光单元2的外径相同，使得三个单元形成厚度一致的整体结构；
中心加强件1包括中心FRP加强件11、外周的护套层12；
光单元2的中心为光纤布置区域，光纤布置区域的外周顺次包覆有芳纶纤维砂层21、内护套层22，内护套层22具体材质为LSZH护套料；
光纤布置区域具体为多根裸纤或者单根紧套纤；具体实施例、见图1，光纤布置区域包括单根光纤23和外周的紧套层24。
扁平护套层3为抗粘连LSZH护套料挤制而成，扁平护套层3的对应于两侧的光单元2的外周区域为圆弧结构。
其结构简单、外径小，并且设计有开剥槽，提高了施工效率，同时可以作为拉远光啦和分支光缆易于市场推广；其在满足传统拉远光缆的敷设环境下，根据应用环境，使用相对便宜的FRP加强件代替部分芳纶纤维纱作为主要的承力元件，产品成本经济，为产品的推广和应用提供了助力；且光缆结构扁平，采用双层护套，并且产品结构紧凑，产品抗压性能以及环境性能优越，能满足4000N/100mm以上抗压以及-40-85C的应用环境。
光缆采用中心加强件作为承力元件代替传统拉远光缆的填充绳作为降本措施；其在扁平护套层的外周上设置有若干内凹的开剥槽、同时采用抗粘连LSZ材料护套，光缆易撕开分支，施工高效，其光单元单芯光缆或者MPO光缆作为分支，既能满足室外拉远使用又能满足室内布线使用。
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 (6)

  1. 一种易开剥扁平分支拉远光缆，其特征在于：其包括中心加强件，所述中心加强件的两侧分别设置有一根光单元，两根光单元和所述中心加强件在横截面状态下形成直线排布，两根光单元和所述中心加强件的外周包覆有扁平护套层，所述扁平护套层的外周上设置有若干内凹的开剥槽。
  2. 如权利要求1所述的一种易开剥扁平分支拉远光缆，其特征在于所述中心加强件的外径和两侧的所述光单元的外径相同，使得三个单元形成厚度一致的整体结构。
  3. 如权利要求1所述的一种易开剥扁平分支拉远光缆，其特征在于：所述中心加强件包括中心FRP加强件、外周的护套层。
  4. 如权利要求1所述的一种易开剥扁平分支拉远光缆，其特征在于：所述光单元的中心为光纤布置区域，所述光纤布置区域的外周顺次包覆有芳纶纤维砂层、内护套层，所述内护套层具体材质为LSZH护套料。
  5. 如权利要求4所述的一种易开剥扁平分支拉远光缆，其特征在于：所述光纤布置区域具体为多根裸纤或者单根紧套纤。
  6. 如权利要求1所述的一种易开剥扁平分支拉远光缆，其特征在于：所述扁平护套层为抗粘连LSZH护套料挤制而成，所述扁平护套层的对应于两侧的光单元的外周区域为圆弧结构。
PCT/CN2021/133541 2020-12-24 2021-11-26 一种易开剥扁平分支拉远光缆 WO2022135030A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN112782818A (zh) * 2020-12-24 2021-05-11 江苏亨通光电股份有限公司 一种易开剥扁平分支拉远光缆
GB2608254A (en) * 2020-12-24 2022-12-28 Hengtong Optic Electric Co Ltd Easy-strip flat-branch long-distance optical cable

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US5737470A (en) * 1996-03-12 1998-04-07 Nippon Telegraph And Telephone Corporation Flat optical fiber cable
CN201222110Y (zh) * 2008-06-12 2009-04-15 常州南方通信科技有限公司 易分叉式皮线光缆
JP2012083423A (ja) * 2010-10-07 2012-04-26 Sumitomo Electric Ind Ltd 光ケーブル
CN202600215U (zh) * 2012-04-10 2012-12-12 江苏亨通光电股份有限公司 护套层侧面带有凹槽的扁形引入光缆
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