CN209167604U - 一种室外铠装光缆 - Google Patents

一种室外铠装光缆 Download PDF

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CN209167604U
CN209167604U CN201821000990.9U CN201821000990U CN209167604U CN 209167604 U CN209167604 U CN 209167604U CN 201821000990 U CN201821000990 U CN 201821000990U CN 209167604 U CN209167604 U CN 209167604U
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optical cable
armor
water blocking
yarn
outdoor
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沈爱辉
陈代根
刘广
翟书宾
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Rosenberger Shanghai Technology Co Ltd
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Rosenberger Technology Kunshan Co Ltd
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Priority to CN201821000990.9U priority Critical patent/CN209167604U/zh
Priority to PCT/CN2018/102452 priority patent/WO2018219366A2/zh
Priority to US16/369,526 priority patent/US20200003985A1/en
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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
    • G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • D02G3/18—Yarns or threads made from mineral substances from glass or the like
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/447—Yarns or threads for specific use in general industrial applications, e.g. as filters or reinforcement
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides

Abstract

本实用新型揭示了一种室外铠装光缆，通过在铠装层内设置与光纤单元并行排布的阻水纱，阻水纱直放在铠装层形成的套管内，或者同时在加强层内也设置阻水纱，保证光缆纵向全面阻水，增加光缆的整体防水性能；且铠装层采用螺旋钢带结构，使光缆弯曲性能优异，尤其适合室外苛刻的使用环境。

Description

一种室外铠装光缆
技术领域
本实用新型涉及一种光缆结构，尤其是涉及一种室外铠装光缆。
背景技术
随着通信行业的发展，光缆得到广泛应用和快速发展。根据用途，光缆可分室外光缆和室内光缆两种类型。室外光缆外护厚而结实，能用于风吹日晒天寒地冻等恶劣的环境，具有耐侧压、耐腐蚀、抗拉等一些机械特性，并且通常为铠装(即金属皮包裹)。室外应用如直埋、管道、架空等。
但是，现有普通室外铠装光缆结构复杂，采用阻水油膏阻水，敷设时需要处理油膏增加大量人工成本，并且油膏污染环境；长期高温下油膏流动性增加，在接头处易渗出，导致设备故障，光信号传输中断，给用户带来巨大的经济损失。
另外，普通室外铠装光缆铠装层常规使用扎纹钢带，弯曲性能差，不适合用于野外反复拖拽收放。
实用新型内容
本实用新型的目的在于克服现有技术的缺陷，提供一种结构简单、防水效果好、弯曲性能优异、干式阻水的室外铠装光缆。
为实现上述目的，本实用新型提出如下技术方案：一种室外铠装光缆，包括复数个光纤单元，所述光缆还包括从外到内依次设置的外护层、加强层和铠装层，所述光纤单元设置在所述铠装层内，所述铠装层内还设置有第一阻水纱，所述光纤单元和第一阻水纱并行排布。
优选地，所述铠装层内还设置有第一加强件，所述第一加强件与第一阻水纱、光纤单元并行排布。
优选地，所述第一阻水纱的数量为复数根。
优选地，所述加强层包括复数根第二阻水纱和第二加强件，所述第二阻水纱和第二加强件并行排布。
优选地，所述加强层包括第二阻水纱和第二加强件，所述第二阻水纱和第二加强件绞合。
优选地，所述光纤单元包括护套和设置在所述护套内的光纤。
优选地，所述铠装层为螺旋钢带结构。
优选地，所述第一加强件为芳纶丝或玻璃纱。
优选地，所述第二加强件为芳纶丝或玻璃纱。
优选地，所述外护层为耐磨的弹性体材料。
优选地，所述铠装层内设置2～12个光纤单元，形成2～12芯光缆。
本实用新型的有益效果是：结构简单，可以保证光缆纵向全面阻水，防水效果好，弯曲性能优异，干式阻水，适合室外苛刻的使用环境。
附图说明
图1是本实用新型实施例的结构示意图；
图2是本实用新型另一实施例的结构示意图；
图3是本实用新型光纤单元的结构示意图；
图4是本实用新型的立体结构示意图。
附图标记：
10、铠装层，20、加强层，30、外护层，40、光纤单元，41、护套，42、光纤，50、第一/第二阻水纱，60、第一/第二加强件。
具体实施方式
下面将结合本实用新型的附图，对本实用新型实施例的技术方案进行清楚、完整的描述。
本实用新型所揭示的一种室外铠装光缆，通过在铠装层10内设置与光纤单元40并行排布的阻水纱50，阻水纱直放在铠装层形成的套管内，或者同时在加强层20内也设置阻水纱50，保证光缆纵向全面阻水，增加光缆的整体防水性能，适合室外苛刻的使用环境。
结合图1、图2和图4所示，本实用新型实施例所揭示的一种室外铠装光缆，包括从内到外依次设置的铠装层10、加强层20和外护层30，其中，铠装层10内设置有复数个光纤单元40和复数根第一阻水纱50，如图1所示的实施例中，铠装层10内设置有4个光纤单元40和1根第一阻水纱50。又如图2所示的另一替换实施例中，铠装层10内设置有12个光纤单元40和3根第一阻水纱50。具体实施时，优选为2～12个光纤单元40，即形成2～12芯光缆，1～3根阻水纱50。当然也可以设置为其它多芯结构及其它根数的阻水纱50。
如图4所示，每个光纤单元40包括护套41和设置在护套41内的光纤42。
优选地，结合图1、图2和图4所示，本实施例中，第一阻水纱50在铠装层10内与光纤单元40并行排布，第一阻水纱50直放在铠装层10形成的套管内，与绞合方式相比，并行排布的方式使得第一阻水纱50在遇水膨胀时，减小对光纤单元40压缩、挤压，影响敏感的光纤单元40传输，从而提高光纤单元40的信号传输质量。且第一阻水纱50的增加，增强了光缆整体的防水效果，使其完全达到室外应用如直埋、管道、架空等场合。
更优选地，铠装层10内还可设置有第一加强件60，该第一加强件60与第一阻水纱50、光纤单元40同样并行排布，实施时，第一加强件60可采用芳纶丝或玻璃纱。第一加强件60与第一阻水纱50的结合，进一步提高了光缆的柔软性、阻水性和抗压抗拉能力，使用和铺设的环境温度范围广。
本实施例中，铠装层10采用螺旋钢带铠装，螺旋结构铠装管可以保证光缆的机械性能，同时，增加光缆的弯曲性能，在超柔的螺旋结构铠装管内增加第一加强件60和第一阻水纱50，使光缆更好适应室外环境性能，在机械性能和环境性能完全达到IEC室外光缆的标准。
本实施例中，加强层20包括第二加强件60，这里的第二加强件60与铠装层10内的第一加强件60一样，同样采用芳纶丝或者玻璃纱。优选地，为了进一步增加光缆的防水性能和抗拉性能，加强层还包括复数根第二阻水纱50，这里的第二阻水纱50和第二加强件60可以绞合，也可以并行排布，形成阻水加强层20，完全达到室外防水等级要求。本实施例中为并行排布，且第二阻水纱50的设置数量也可根据实际需要设置。
另外，本实施例中，外护层30采用耐磨的弹性体材料，更进一步提高了本实用新型光缆的柔软性、阻水性和抗压抗拉能力，使其使用和铺设的环境温度范围广，完全满足室外环境下的敷设和使用。
本实用新型的技术内容及技术特征已揭示如上，然而熟悉本领域的技术人员仍可能基于本实用新型的教示及揭示而作种种不背离本实用新型精神的替换及修饰，因此，本实用新型保护范围应不限于实施例所揭示的内容，而应包括各种不背离本实用新型的替换及修饰，并为本专利申请权利要求所涵盖。

Claims (10)

1.一种室外铠装光缆，包括复数个光纤单元，其特征在于，所述光缆还包括从外到内依次设置的外护层、加强层和铠装层，所述光纤单元设置在所述铠装层内，所述铠装层内还设置有第一阻水纱，所述光纤单元和第一阻水纱并行排布。
2.根据权利要求1所述的室外铠装光缆，其特征在于，所述铠装层内还设置有第一加强件，所述第一加强件与第一阻水纱、光纤单元并行排布。
3.根据权利要求1或2所述的室外铠装光缆，其特征在于，所述第一阻水纱的数量为复数根。
4.根据权利要求1所述的室外铠装光缆，其特征在于，所述加强层包括复数根第二阻水纱和第二加强件，所述第二阻水纱和第二加强件并行排布。
5.根据权利要求1所述的室外铠装光缆，其特征在于，所述加强层包括复数根第二阻水纱和第二加强件，所述第二阻水纱和第二加强件绞合。
6.根据权利要求1所述的室外铠装光缆，其特征在于，所述铠装层为螺旋钢带结构。
7.根据权利要求2所述的室外铠装光缆，其特征在于，所述第一加强件为芳纶丝或玻璃纱。
8.根据权利要求4或5所述的室外铠装光缆，其特征在于，所述第二加强件为芳纶丝或玻璃纱。
9.根据权利要求1所述的室外铠装光缆，其特征在于，所述外护层为耐磨的弹性体材料。
10.根据权利要求1或5所述的室外铠装光缆，其特征在于，所述铠装层内设置2～12个光纤单元。
CN201821000990.9U 2018-06-27 2018-06-27 一种室外铠装光缆 Active CN209167604U (zh)

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CN201821000990.9U CN209167604U (zh) 2018-06-27 2018-06-27 一种室外铠装光缆
PCT/CN2018/102452 WO2018219366A2 (zh) 2018-06-27 2018-08-27 一种室外铠装光缆
US16/369,526 US20200003985A1 (en) 2018-06-27 2019-03-29 Outdoor armored fiber optical cable

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