CN104919348A - 结实的分叉管 - Google Patents

结实的分叉管 Download PDF

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CN104919348A
CN104919348A CN201380059675.7A CN201380059675A CN104919348A CN 104919348 A CN104919348 A CN 104919348A CN 201380059675 A CN201380059675 A CN 201380059675A CN 104919348 A CN104919348 A CN 104919348A
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fiber
bifurcated pipe
jacket
internal jacket
bifurcated
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CN104919348B (zh
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N·伊斯拉姆
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TE Connectivity Corp
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Tyco Electronics Corp
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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
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown 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
    • 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
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps
    • 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
    • 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
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps
    • G02B6/4472—Manifolds
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/013—Sealing means for cable inlets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Abstract

用于光纤的分叉管具有聚合物内部护套，该聚合物内部护套被纤维和强度杆的纤维和强度构件层包围，该纤维和强度构件层被聚合物外部护套包围。该内部护套可以包围多个内部管。该强度构件可以被排列在内部护套周围，基本上彼此等距。该强度构件可以是树脂拉挤的纤维杆并且该纤维可以是对位芳纶纤维。

Description

结实的分叉管
技术领域
本发明涉及光缆组件。更具体地，本发明涉及具有提高的强度特性和/或易用性的光纤分叉管。
背景技术
无线通信行业正从传统信号输送(从基于地面的收发器输送，该基于地面的收发器通过庞大的/重的/高材料成本的金属RF同轴缆绳将RF信号输送到天线/从天线接收RF信号，该天线在无线电塔的顶上)改变到光学信号输送(通过将纤维用于天线(FTTA)布线，输送到塔顶安装的收发器，该塔顶安装的收发器称为远端射频单元(RRU)或远端射频头(RRH))。
FTTA布线的可选导体可能是易碎的，需要非常小心以便适当地端接。
先前RRU/RRH端接已经使用过电压保护和/或接线盒以便将光导体的每一个端接为单个跳线。这些另外附件需要无线电塔顶上的数个导体的现场端接，增加安装时间和劳动要求。此外，导体中的每一个断开提供信号退化和/或环境污染的另一可能性。
工厂端接的缆绳组件是已知的。然而，这些组件可能对导体施加拼接，需要相对大的内嵌突破/拼接附件且/或利用环境密封件，该环境密封件未能绝对地将跳线与其互锁，这可能增加缆绳和/或单个导体损坏发生的可能性。
分叉管可以应用于从缆绳端部向后剥去的纤维和/或纤维束以保护光纤免于缆绳和光纤端接之间的损坏。先前光纤分叉管典型地由内部聚合物管组成，该内部聚合物管被对位芳纶合成纤维外壳包围或仅被对位芳纶合成纤维外壳包围。此外，制备用于互连的分叉管且/或将光纤穿过分叉管可能是劳动密集的。
发明内容
因此，本发明的目标是提供一种克服现有技术中的缺陷的光导体分叉管方案。
附图说明
被并入并且构成本说明书的一部分的附图示出本发明的实施例，其中附图中的相同附图标记指示相同特征或元件并且对于它们出现在其中的每一个附图可以不被详细描述，并且该附图与上面给出的本发明的概括描述和下面给出的实施例的详细描述一起用于说明本发明的原理。
图1是具有拉线的示例性分叉管的示意性等距视图。
图2是图1的分叉管的示意性端视图。
图3是具有插入的光纤的图1的分叉管的示意性等距视图。
图4是图3的分叉管的示意性端视图。
图5是具有插入的光纤的替代分叉管的示意性等距视图。
图6是图5的分叉管的示意性端视图。
图7是具有多个内部管的替代分叉管的示意性等距视图。
图8是图7的分叉管的示意性端视图。
图9是具有多个内部管和泡沫层的替代分叉管的示意性等距视图。
图10是图9的分叉管的示意性端视图。
图11是具有多个内部管、泡沫层和拉线的替代分叉管的示意性等距视图。
图12是图11的分叉管的示意性端视图。
图13是具有插入的光纤的图11的分叉管的示意性等距视图。
图14是图13的分叉管的示意性端视图。
具体实施方式
为了将缆绳的导体和/或纤维直接连接到RRH，光纤和电导体(如果存在)可以与该缆绳分离作为单个跳线，该跳线通过分离的分叉管被保护。本发明人已经认识到，虽然与裸露的光纤相比可用的光学分叉管可以提供保护，但如果分叉管被压碎、纽结或弯曲，光纤的损坏仍然可能发生。
示例性结实的分叉管1具有内部护套5，所述内部护套被设置在纤维和强度层17中的纤维10和强度构件15的径向阵列包围，纤维和强度构件被外部护套20包围，例如，如图1和图2中所示。
纤维和强度层17可以设置有强度构件13的径向阵列，该强度构件通常等距离地彼此间隔开，使得强度构件13的一个被布置在纤维10的束的每一个之间。
内部护套5可以被设计尺寸以便在借助或不借助拉线25的情况下容易穿过其插入光纤30、纤维束和/或电导体，例如，如图3和4中所示。拉线25可以被设置成具有合适的强度以便将希望的导体拉过内部护套5，诸如对位芳纶合成纤维或纱线。
内部护套5可以例如被设置为具有希望的强度、成本、温度和/或抗湿特性的聚合物材料，诸如聚乙烯、热塑性聚酯弹性体、聚四氟乙烯、尼龙、聚偏二氟乙烯等等。
内部护套5可以替代地被设置成还包围纤维层35和内部管40，例如，如图5和6中所示。
替代地，内部护套5可以包围多个内部管40，例如两个内部管40(如图9和10中所示)，或四个内部管40(如图7和8中所示)。内部管40可以设置成一系列颜色，例如，以便容易纤维识别和通过4纤维-ODC连接器等等的端接。
拉线25也可以被布置在每一个内管40的内径中。
纤维层35也可以用于填充多个内部管40和内部护套50之间的空间且/或另外稳定多个内部管40和内部护套5，例如，如图9-14中所示。
强度构件15可以是为了希望抗张强度和缆绳弯曲半径而选择的对位芳纶、玻璃加强的塑料或其它形式的树脂拉挤的纤维杆。替代地，强度构件可以被嵌入在外部护套20中。本领域技术人员将理解，强度构件15也向分叉管1提供热膨胀稳定性特性。
外部护套20和/或内部护套5的直径可以被选择用来在预期的设备和/或接线盒的缆绳进入点安置在连接器或密封盖内。
一个或更多个撕裂绳45可以被布置在外部和内部护套20、5之间，以便在缆绳端接期间容易向后剥去纤维和强度层17。
纤维和强度层17和/或纤维层35的纤维可以是例如对位芳纶纤维或纱线束。
本领域技术人员将理解，结实的分叉管1实现光缆的免拼接纤维分布，其中光纤被保护以免纽结、压碎和/或热应力。此外，内部管40、拉线25和/或撕裂绳45的颜色编码可以简化分叉管1的安装。
部件表
1 分叉管
5 内部护套
10 纤维
15 强度构件
17 纤维和强度层
20 外护护套
25 拉线
30 光纤
35 纤维层
40 内部管
45 撕裂绳
在前述描述中已经参考具有已知等同物的材料、比率、整数或分量的情况中，则这种等同物在这里并入，如同单独地被阐述。
虽然本发明已经通过其实施例的描述被示出，并且虽然该实施例已经相当详细地被描述，但本申请人不意图将所附权利要求的范围限定或以任何方式限制到这种细节。本领域技术人员将容易想到另外的优点和改进型。因此，本发明在其较宽阔的方面不限于示出且描述的具体细节、代表性设备、方法和说明性例子。因此，可以偏离这种细节而不偏离本申请人的总发明构思的精神或范围。此外，应当理解，可以对其作出改进和/或修改而不偏离如以下权利要求限定的本发明的范围或精神。

Claims (20)

1.一种用于光纤的分叉管，所述分叉管包括：
聚合物内部护套；
所述内部护套被纤维和强度构件的纤维和强度层包围；和
聚合物外部护套，所述聚合物外部护套包围所述纤维和强度层。
2.权利要求1所述的分叉管，其中，所述内部护套包围多个内部管。
3.权利要求2所述的分叉管，其中，所述内部管分别为不同的颜色。
4.权利要求2所述的分叉管，还包括在所述内部管和所述内部护套之间的填充空间中的纤维层。
5.权利要求1所述的分叉管，还包括在所述内部护套和所述外部护套之间的撕裂绳。
6.权利要求1所述的分叉管，还包括所述内部护套中的拉线。
7.权利要求2所述的分叉管，还包括所述内部管的每一个中的拉线。
8.权利要求1所述的分叉管，其中，所述强度构件围绕所述内部护套以径向阵列分布，基本上彼此等距。
9.权利要求1所述的分叉管，其中，所述纤维和强度层设置有强度构件和纤维束；所述强度构件的一个被布置在所述纤维束的每一个之间。
10.权利要求1所述的分叉管，其中，所述纤维是对位芳纶纤维。
11.权利要求1所述的分叉管，还包括所述纤维和强度层中的多个玻璃加强的塑料杆。
12.权利要求1所述的分叉管，还包括所述纤维和强度层中的多个树脂拉挤的纤维杆。
13.权利要求1所述的分叉管，其中，所述纤维和强度层包括对位芳纶纤维。
14.权利要求1所述的分叉管，其中，所述内部护套和所述外部护套同轴地对准。
15.一种用来制造分叉管的方法，所述方法包括：
提供聚合物内部护套；
用纤维和强度构件的纤维和强度层包围所述内部护套；和
用聚合物护套包围所述纤维和强度层。
16.权利要求15所述的方法，还包括以下步骤：用所述内部护套包围多个内部管。
17.权利要求16所述的方法，其中，所述内部管分别为不同的颜色。
18.权利要求16所述的方法，还包括使纤维层处于所述内部管和所述内部护套之间的填充空间中。
19.权利要求15所述的方法，还包括以下步骤：将撕裂绳插在所述内部护套和所述外部护套之间。
20.权利要求15所述的方法，还包括以下步骤：将拉线设置在所述内部护套中。
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US201261728020P 2012-11-19 2012-11-19
US61/728,020 2012-11-19
US13/832,131 2013-03-15
US13/832,131 US9536640B2 (en) 2012-11-19 2013-03-15 Rugged furcation tube
PCT/US2013/061525 WO2014077955A1 (en) 2012-11-19 2013-09-25 Rugged furcation tube

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CN104919348B (zh) 2018-08-24
US20140140669A1 (en) 2014-05-22
WO2014077955A1 (en) 2014-05-22
EP2920631B1 (en) 2020-01-22
US9536640B2 (en) 2017-01-03
IN2015DN03850A (zh) 2015-10-02
EP2920631A1 (en) 2015-09-23
EP2920631A4 (en) 2015-12-09

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