WO2012041153A1 - 预制光缆分纤组件及光分配网络系统 - Google Patents

预制光缆分纤组件及光分配网络系统 Download PDF

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Publication number
WO2012041153A1
WO2012041153A1 PCT/CN2011/079315 CN2011079315W WO2012041153A1 WO 2012041153 A1 WO2012041153 A1 WO 2012041153A1 CN 2011079315 W CN2011079315 W CN 2011079315W WO 2012041153 A1 WO2012041153 A1 WO 2012041153A1
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WO
WIPO (PCT)
Prior art keywords
adapter
cable
prefabricated
fiber optic
optical
Prior art date
Application number
PCT/CN2011/079315
Other languages
English (en)
French (fr)
Inventor
吴文新
王波
郭玉新
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP11828049.4A priority Critical patent/EP2613189A4/en
Priority to AU2011307757A priority patent/AU2011307757A1/en
Publication of WO2012041153A1 publication Critical patent/WO2012041153A1/zh
Priority to US13/851,680 priority patent/US20130209051A1/en

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Classifications

    • 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
    • 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
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a prefabricated fiber optic cable splitting assembly and an optical distribution network system for use in an outdoor user access point. Background technique
  • the optical access network is mainly composed of xPON (X Passive Optical Network) technology.
  • the system consists of central office equipment and terminal equipment and the physical distribution network (0 ⁇ , Optical distribution network) connecting the two ends of the equipment.
  • PON Passive Optical Network
  • Most of the construction time is concentrated in the construction of 0 ⁇ , accounting for nearly 70% of the total construction cost of the P0N network.
  • the 0 ⁇ middle node is divided into the optical cable distribution point and the user access point, and the optical cable is divided into three sections: the feeder optical cable, the distribution optical cable and the household optical cable.
  • the fiber access terminal is mainly used to connect the distribution cable and the household optical cable, which has both straight-through and divergent functions.
  • the commonly used fiber-optic box includes both indoor and outdoor applications.
  • the splitter box has various installation methods such as pipe, overhead, wall hanging, etc., so the splitter box is selected according to the requirements in the network design. Since the user access point is close to the end of the network and directly faces the user side where the scene is more complicated, the installation location is changeable.
  • the fiber-optic end of the fiber-optic box includes a large number of fiber-optic cables with less fiber or even single-fiber users, which is the most difficult implementation. part.
  • the user access point in the outdoor is connected to the distribution cable and the household optical cable through the splitter box.
  • the split fiber box contains the splice tray.
  • the distribution cable is introduced into the splitter box through the cable entrance, and the direct splitting is performed in the splitter box.
  • the method is connected with the home optical cable (such as a leather cable), or the adapter row is pre-installed in the fiber-optic box, the inner side of the adapter is provided with a pigtail, and the distribution cable is welded to the pigtail in the fiber-optic box, and the jumper is passed through the adapter.
  • the outside port jumps to the user side.
  • the existing outdoor splitter box connection wiring cable and the household optical cable have at least the following problems: During the construction process, the protective casing of the fiber separation box needs to be opened, and after the optical fiber cable is welded, welded and fiber-reinforced in the box, The installation of the box is also difficult and inconvenient for the construction; most of the fiber-optic boxes are installed by wall hanging and pole-mounted. After installation, the distribution cable and the household fiber cable are also basically fixed in position and length. When replacing and installing the position adjustment, it is necessary to open the fiber separation box to perform the welding wiring, which is difficult to operate;
  • the user access point also uses a multi-port pre-connected fiber-optic cable to connect the distribution cable and the home optical cable.
  • the fiber-optic box includes a base, and the fiber-optic connection socket is arranged in a row on the cover, and the multi-core optical cable is wired.
  • the optical cable is introduced into the fiber-optic box, and the connector plug is pre-fabricated after being split in the box, and inserted into the inner side of the socket; on the outside of the socket, a single-core prefabricated jumper fiber is connected to the user side, which can satisfy 4-core, 8-core and 12-cell capacity user access installation.
  • the fiber-optic box connection also has at least the following problems:
  • the fiber-optic box is prefabricated at the end of the distribution cable, which is bulky and not easy to install. When upgrading and expanding, if the number of ports has been used, it needs to be 8 If the port is upgraded to 12 ports, you need to remove the 8-core product and replace it with a 12-core product. That is, you cannot upgrade and expand the existing product. If some prefabricated sockets fail, it is difficult to replace or repair them separately.
  • Splitter box Summary of the invention
  • the embodiments of the present invention provide a prefabricated optical fiber cable splitting assembly, which can conveniently and quickly transfer and distribute optical cables of outdoor user access points under the premise of ensuring outdoor sealing protection.
  • the fiber is easy to maintain, and solves the problem that the existing splitting box is difficult to perform the construction operation and subsequent maintenance when the outdoor user access point transfers and splits the optical cable.
  • the embodiment of the invention provides a prefabricated optical fiber cable splitting assembly, comprising:
  • the adapter mounting bracket is provided with a mounting position, the adapter is disposed in the mounting position, and the two ends of the adapter are provided with sockets, and the sockets at both ends can enable the prefabricated connector of the distribution cable and the cable of the household cable The prefabricated connector is inserted into the adapter for connection;
  • a sealing member is disposed at the two ends of the adapter, and the sealing member cooperates with a prefabricated connector that is inserted into the adapter socket to form a sealing protection for the adapter socket.
  • An embodiment of the present invention further provides an optical distribution network system, including: a distribution cable, a drop cable, and a fiber splitter assembly; wherein the cable splitter assembly uses the prefabricated fiber splitter assembly;
  • One end of the distribution cable is used to connect the central office equipment, and the other end is provided with a prefabricated joint;
  • the household optical cable has a prefabricated joint at one end and a terminal device at the other end;
  • a prefabricated joint of the branch cable of the distribution cable and a prefabricated joint of the drop cable are inserted into the adapter of the cable splitter assembly, and the distribution cable and the household are connected by the adapter of the cable splitter assembly
  • the optical cable is switched and split; the sealing component of the optical fiber splitting assembly seals the adapter socket of the prefabricated connector of the optical cable.
  • the adapter provided with the socket at both ends is mounted on the adapter mounting bracket, so that the prefabricated plug of the distribution cable and the prefabricated plug of the household optical cable can be
  • the adapter cable is connected to the adapter of the component from both ends, so that the distribution cable and the home optical cable are connected through the adapter, and the sealing component provided at the socket at both ends of the adapter can form a sealing protection for the adapter after the prefabricated plug of the optical cable is inserted.
  • This component is guaranteed to be suitable for outdoor user access points.
  • the prefabricated optical fiber splitting module has a single structure, which can facilitate the transfer and distribution of the distribution optical cable to the household optical cable under the premise of ensuring the sealing protection, thereby improving the efficiency of the fiber separation operation and the convenience in subsequent maintenance and replacement. . DRAWINGS
  • FIG. 1 is a schematic structural diagram of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of another structure of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a sealing member of a prefabricated optical fiber cable splitting assembly using a plastic cover according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an adapter mounting bracket of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an adapter of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 7 is a schematic structural view of an adapter of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a fiber splitting state of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention
  • FIG. 9 is another schematic diagram of a fiber splitting of a prefabricated optical fiber cable splitting assembly according to an embodiment of the present invention.
  • the prefabricated optical fiber cable splitting assembly provided in this embodiment can be used as a prefabricated optical fiber cable splitting component of an outdoor user access point in an optical distribution network.
  • the component includes: an adapter mounting bracket 1 , an adapter 2 , and a sealing component 3 . ;
  • the adapter mounting bracket 1 is provided with a mounting position 4 for mounting the adapter 2, the adapter 4 is provided with an adapter 2, and the adapter 2 is provided with at least two sockets, and a socket is inserted with a prefabricated joint of a branch cable of a distribution cable.
  • the other socket is inserted into a prefabricated connector of the household optical cable, that is, the adapter 2 can be inserted into the prefabricated connector of each branch optical cable of the assembly line cable and the prefabricated connector of the household optical cable from both ends, and the wiring is made by the adapter 2
  • the branch cable of the optical cable is connected to the household optical cable, so that the pre-fabricated optical fiber splitting assembly can conveniently complete the transfer and splitting of the optical fiber cable to the household optical cable;
  • the two end sockets of the assembly are provided with sealing components.
  • the sealing member cooperates with a prefabricated connector that is inserted into the adapter socket to form a seal against the adapter socket.
  • the sealing member 3 in the above assembly may take various forms, such as a sealing rubber ring, and the sealing rubber ring may be fixedly disposed in the socket of the adapter (see Fig. 1), and the cable prefabricated plug is inserted through the sealing rubber ring to Inside the socket of the adapter, the sealing rubber ring is inserted into the pre-fabricated plug of the cable and the adapter Between the inner walls of the mouth, a good sealing protection is formed at the socket of the adapter.
  • the sealing rubber ring can also be directly fixed on the prefabricated plug of the optical cable, that is, the sealing rubber ring set forms a ring of sealing ring outside the prefabricated plug of the optical cable, and the prefabricated plug of the cable is inserted into the adapter.
  • the socket After the socket is inserted, it is matched with the prefabricated plug of the optical cable, and the sealing rubber ring is sandwiched between the prefabricated plug of the optical cable and the inner wall of the socket of the adapter, and forms a good sealing protection for the socket of the adapter.
  • the sealing member 3 can also be a plastic cover, and a rubber ring is arranged in the plastic cover.
  • the size of the plastic cover matches the size of the adapter socket, and the plastic cover can be buckled on the socket of the adapter to cover the socket of the adapter.
  • the plastic cover is fixedly disposed on the prefabricated plug of the optical cable inserted into the socket of the adapter. After the prefabricated plug of the optical cable is inserted into the adapter, the plastic cover is fastened on the socket of the adapter, and the rubber ring is clamped on the inner wall of the plastic cover and the adapter. Between the outer walls of the socket, the plastic cover of this structure cooperates with the prefabricated plug of the cable inserted into the socket of the adapter to form a good sealing protection for the socket of the adapter.
  • the sealing member 3 in the above components can also adopt other structural forms, as long as the socket of the adapter can be well sealed and protected from the outdoor environment after the prefabricated connector of the optical cable is inserted.
  • a sealing cover or a sealing plug may be provided on the socket of the adapter without the optical cable prefabricated connector, and the socket of the adapter of the prefabricated connector without the optical cable is sealed.
  • the above assembly may further include a distribution cable branching assembly, which is composed of a cable splitter 7 and at least one prefabricated joint, wherein the cable splitter 7 is used for connecting to the distribution cable.
  • the connected one of the distribution cables can be divided into a plurality of branch cables (the number of branch cables can be equal to the number of fiber cores of the household cable), and the prefabricated joints are disposed on the branch cables of the cable splitter 7 Ends.
  • the distribution cable assembly can be conveniently divided into a plurality of branch cables by means of the distribution cable branch assembly, and the prefabricated joints provided at the ends of the branch cables can be used to quickly connect the distribution cables to the adapter mounting brackets 1 .
  • the adapter 2 On the adapter 2, a quick connection and positioning of the distribution cable to the prefabricated fiber optic cable splitting assembly is achieved.
  • the adapter mounting bracket 1 in the above components generally adopts a plate structure, and the mounting position 4, the adapter 2 and the sealing member 3 provided on the adapter mounting bracket 1 may be disposed in plurality, and a plurality of mounting positions are arranged in the array in the manner of the adapter.
  • the mounting bracket 1 can be set at least in each mounting position 4.
  • An adapter 2 is provided with a sealing member 3 on each of the sockets at both ends of the adapter 2, so as to meet the needs of connecting a plurality of distribution cables to the home optical cable.
  • the mounting position 4 on the adapter mounting bracket 1 may be a through hole disposed on the plate body of the adapter mounting bracket 1.
  • the positioning portion 41 of the adapter 2 may be disposed on the inner wall of the through hole (see FIG. 5).
  • the outer casing 21 is disposed on the outer casing 21, and the outer casing 21 is provided with a latching portion 22 matching the shape of the positioning portion 41 on the inner wall of the through hole 21 of the adapter mounting bracket 1 (refer to FIG. 6, FIG. 6 illustrates the double-core adapter, other single
  • the structure of the outer casing of the core or the multi-core adapter may adopt a structure similar to that of FIG.
  • the through hole 21 of the 1 allows the adapter 2 to be conveniently moved into the through hole as the mounting position 4, facilitating the mounting and dismounting of the adapter 2 on the adapter mounting bracket 2; the adapter can also be fixedly disposed in the mounting position. , to ensure the stability of the adapter on the adapter mounting bracket.
  • each of the adapters may adopt any one or any of a multi-core optical cable prefabricated joint adapter, a twin-core optical cable prefabricated joint adapter or a single-core optical cable prefabricated joint adapter, in order to divide the prefabricated optical cable.
  • Fiber components meet the requirements of outdoor use, adapters can be used to meet the outdoor protection level of the adapter to achieve moisture, anti-aging and lightning protection requirements.
  • the interface type of the adapter used must match various types of fiber connectors such as SC, LC, and FC.
  • the plate structure adapter mounting bracket of the prefabricated fiber optic cable splitting assembly may be various structures such as a square plate, a circular plate or a triangular plate, and the adapter mounting bracket may also adopt other structural forms, as long as it is suitable for the environment of the access point of the household. Installation, and it is convenient to install the adapter on the bracket.
  • the structure of the mounting position on the adapter mounting bracket can be installed as long as the adapter is installed, and the prefabricated connector of the optical cable can be inserted, so that the length of the adapter is not less than
  • the length of the through hole on the adapter mounting bracket as the mounting position allows the adapter to be longer than the through hole to facilitate the insertion of the prefabricated connector of the cable.
  • the through hole as the mounting position can be various shapes such as a circle, a square, a triangle, and the like, as long as the adapter is easily provided.
  • an ordinary through hole ie, a positioning portion is not disposed on the inner wall of the through hole
  • a straight-through conduit is disposed as an adapter in the through hole.
  • the straight-through type conduit can adopt various shapes such as a circle, a square, a triangle, etc., and the length of the straight-through type conduit is not less than the length of the through hole as the mounting position, and the prefabricated joint of the optical cable is facilitated.
  • the prefabricated joint of each branch cable of the distribution cable and the prefabricated joint of the household optical cable can be inserted into the straight-through conduit as an adapter to realize the connection of the distribution optical cable and the household optical cable.
  • the prefabricated fiber optic cable splitting assembly of the structure has a simpler structure, and the outer casing of the adapter is not required to be disposed outside the adapter, which can reduce the requirement for the transfer and distribution of the distribution cable to the household optical cable in most application scenarios.
  • the cost of prefabricated fiber optic cable splitting components is not required to be disposed outside the adapter, which can reduce the requirement for the transfer and distribution of the distribution cable to the household optical cable in most application scenarios.
  • a fixing component may be further disposed on the adapter mounting bracket of the prefabricated optical fiber cable splitting assembly, and the fixing mounting component may conveniently fix the adapter mounting bracket at the outdoor user access point (that is, the fixed installation of the prefabricated optical fiber splitting component).
  • the prefabricated optical fiber cable splitting assembly 51 provided in this embodiment can be used to connect the distribution optical cable and the household optical cable at the user access point, and complete the transfer and distribution of the optical fiber cable to the household optical cable.
  • Fiber Specifically, the prefabricated joint 52 of the branch cable of the distribution cable is inserted into one end of the adapter of the assembly 51, and the other end of the adapter is inserted into the prefabricated joint 5 3 of the household optical cable to complete the transfer of the distribution optical cable to the household optical cable. , Connect the drop cable to the user side.
  • the prefabricated fiber optic cable splitting assembly has the same structure and small volume, and does not require a large installation space requirement; when used, the distribution cable is split and terminated by the distribution cable branching device, and the adapter is mounted on the adapter mounting bracket.
  • Connect the prefabricated distribution cable and the household optical cable and insert the prefabricated connector of each branch cable of the distribution cable and the prefabricated connector of the household optical cable into the adapter of the component, that is, the connection from the distribution cable to the household optical cable With split fiber.
  • the component can be used to connect the distribution cable and the drop cable without using the welding method, which reduces the construction complexity, facilitates the split fiber transfer function, and facilitates the upgrade from the single port to the 12 port, without replacing the entire device. It is necessary to add an adapter, which saves the cost effectively.
  • the adapter can be easily installed and disassembled on the adapter mounting bracket without special tools.
  • the component can meet the installation requirements of pipelines and overheads, and facilitates complicated environment operations and improves The efficiency of fiber separation operation and the convenience of subsequent
  • the application of the prefabricated optical fiber cable splitting assembly of the embodiment of the invention can avoid complicated operations such as repeated opening, welding, loading and unloading a large number of screws, etc. when the fiber optic cable is connected to the household optical fiber cable at the outdoor user access point. Can reduce construction difficulty and effectively eliminate fiber network design, construction and use Among them, various uncertain factors may cause damage or safety impact on the fiber link, fully guarantee system safety and meet design requirements.
  • the present embodiment provides an optical distribution network system, including: a distribution cable, a drop cable, and a fiber splitter assembly; wherein the fiber splitter assembly uses the prefabricated fiber splitter assembly of the first embodiment, generally Set up in an outdoor user access point;
  • One end of the distribution cable is used to connect the central office equipment, and the other end is provided with a prefabricated joint;
  • the household optical cable has a prefabricated joint at one end and a terminal device at the other end;
  • the optical distribution network system facilitates the switching and splitting of the optical fiber cable to the household optical cable due to the optical fiber cable splitting component at the outdoor user access point, thereby improving the operation efficiency during conversion and fiber splitting, and improving the subsequent maintenance. Convenience, reducing costs.

Description

说 明 书
预制光缆分纤組件及光分配网络系统
技术领域
本发明涉及通信技术领域， 尤其涉及一种用在室外用户接入点的预制光 缆分纤组件及光分配网络系统。 背景技术
光纤接入网目前主要采用 xPON ( X Passive Optical Network )技术， 系 统由局端设备和终端设备及连接两端设备的物理线路——光分配网络（ 0匪， Optical distribution network ) 组成 。 在 PON ( Passive Optical Network) 网络的规划建设中， 施工建设大部分时间都集中在 0匪的建设中， 占整个 P0N网络建设成本的近 70%。 在 P0N网络中 居用途和位置不同又将 0匪 中节点分为光缆分配点和用户接入点， 相应的将光缆分成馈线光缆、 配线光 缆和入户光缆三段。
在用户接入点， 主要使用分纤盒 ( Fiber Access Terminal, FAT ) 来连 接配线光缆和入户光缆， 兼具直通和分歧的功能， 常用的分纤盒包括室内和 室外两种应用场所， 对分纤盒有管道、 架空、 挂墙等多种安装方式， 所以分 纤盒根据网络设计中的要求来进行选用。 由于用户接入点靠近网络末端， 直 接面向场景比较复杂的用户侧， 安装地点情况多变， 分纤盒的出纤端又包括 大量的少纤甚至单纤用户光缆， 是 0匪实施中最困难的部分。 目前在室外的用 户接入点通过分纤盒连接配线光缆和入户光缆， 分纤盒内包含熔纤盘， 配线 光缆由光缆入口引入至分纤盒内， 分纤盒内采取直接熔接的方式与入户光缆 (如皮线缆） 连接， 或者在分纤盒内预先安装适配器排， 适配器内侧装有尾 纤， 配线光缆在分纤盒内与尾纤熔接， 由跳纤经适配器外侧端口跳接到用户 侧。 现有室外用分纤盒连接配线光缆与入户光缆至少存在下述问题： 施工过 程中需要打开分纤盒的防护外壳， 现场在盒内对光缆熔接， 熔接和盘纤后， 再进行盒体安装等， 给施工带来难度和不便； 分纤盒大多采用墙挂和抱杆式 安装， 安装后配线光缆和入户光缆也基本固定了位置和长度， 当需要扩容、 故障更换、 安装位置调整时， 都需要开启分纤盒来进行熔接配线， 操作难度 较大；
目前， 在用户接入点也有采用多端口预连接分纤盒连接配线光缆和入户 光缆， 分纤盒包含一个底座， 盒盖上以斜面方式按排布置光纤连接插座， 配 线多芯光缆与分纤盒集成在一起， 光缆引入分纤盒中， 在盒内分纤后预制连 接器插头， 并插于插座内侧； 在插座外侧， 再由单芯预制跳纤连接到用户 侧， 能够满足 4芯、 8芯和 12芯容量的用户接入安装。 这种分纤盒连接也至少 存在下述问题： 分纤盒预制在配线光缆末端， 体积较大， 安装不够方便； 在 升级扩容使用时， 如端口数已经全部使用， 而此时需如 8端口升级为 12端口， 则需要拆卸 8芯产品重新更换为 12芯容量的产品， 即无法在现有产品上进行升 级扩容； 并且如一旦部分预制插座出现故障， 难以单独更换或修复， 需更换 整个分纤盒。 发明内容
基于上述现有技术所存在的问题， 本发明实施方式提供一种预制光缆分 纤组件， 在保证户外密封防护的前提下可方便、 快速的对室外的用户接入点 的光缆进行转接与分纤， 且便于后续维护， 解决了现有采用分纤盒在室外用 户接入点对光缆进行转接与分纤时施工操作和后续维护困难的问题。
本发明实施例提供一种预制光缆分纤组件， 包括：
适配器、 适配器安装支架和密封部件；
所述适配器安装支架上设有安装位， 所述适配器设置在所述安装位内， 所述适配器两端设有插口， 通过两端的所述插口能使配线光缆的预制接头和 入户光缆的预制接头插装到适配器内进行连接；
所述适配器的两端插口处设置密封部件， 所述密封部件与插装到适配器 插口上的预制接头配合对适配器插口形成密封防护。
本发明实施例还提供一种光分配网络系统， 包括： 配线光缆、 入户光缆和光缆分纤组件； 其中， 所述光缆分纤组件采用上 述的预制光缆分纤组件；
所述配线光缆一端用于连接局端设备， 另一端设有预制接头；
所述入户光缆一端设有预制接头， 另一端用于连接终端设备；
所述配线光缆的分支光缆的预制接头和入户光缆的预制接头均插装到所 述光缆分纤组件的适配器上， 通过所述光缆分纤组件的适配器使所述配线光 缆与入户光缆进行转接与分纤； 所述光缆分纤组件的密封部件对插装光缆的 预制接头的适配器插口处进行密封防护。
由上述本发明实施方式提供的技术方案可以看出， 本发明实施例中通过 将两端设有插口的适配器安装在适配器安装支架上， 使得配线光缆的预制插 头和入户光缆的预制插头可从两端插装到该组件的适配器上， 使配线光缆与 入户光缆经适配器实现连接， 而适配器两端的插口处设置的密封部件可对插 装光缆的预制插头后的适配器形成密封防护， 保证了该组件可适用于室外的 用户接入点。 该预制光缆分纤组件结构筒单， 在保证密封防护的前提下， 可 方便实现配线光缆向入户光缆的转接与分纤， 提高了分纤操作效率及后续维 护、 更换时的便利性。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他附图。
图 1为本发明实施例提供的预制光缆分纤组件的结构示意图；
图 2为本发明实施例提供的预制光缆分纤组件的另一种结构示意图； 图 3为本发明实施例提供的预制光缆分纤组件的密封部件采用塑胶盖的结 构示意图；
图 4为本发明实施例提供的预制光缆分纤组件的又一种结构示意图； 图 5为本发明实施例提供的预制光缆分纤组件的适配器安装支架的结构示 意图；
图 6为本发明实施例提供的预制光缆分纤组件的适配器的结构示意图； 图 7为本发明实施例提供的预制光缆分纤组件的适配器采用直通式导管的 结构示意图；
图 8为本发明实施例提供的预制光缆分纤组件的分纤状态示意图； 图 9为本发明实施例提供的预制光缆分纤组件的分纤的另一状态示意图。 具体实施方式
为便于理解， 下面将结合本发明实施例中的附图， 对本发明实施例中的 技术方案进行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部 分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术 人员在没有做出创造性劳动前提下所获得的所有其他实施例， 都属于本发明 保护的范围。
实施例一
本实施例提供的预制光缆分纤组件， 可作为光分配网络中室外用户接入 点的预制光缆分纤组件， 如图 1所示， 该组件包括： 适配器安装支架 1、 适配 器 2和密封部件 3;
其中， 适配器安装支架 1上设有安装适配器 2的安装位 4 , 安装位 4内设置 适配器 2 , 适配器 2至少设有两个插口， 一个插口插装一根配线光缆的分支光 缆的预制接头， 另一插口插装一根入户光缆的预制接头， 即通过适配器 2使该 组件可从两端分别插装配线光缆的各分支光缆的预制接头和入户光缆的预制 接头， 由适配器 2使配线光缆的分支光缆与入户光缆连接， 使得通过该预制光 缆分纤组件可以方便的完成由配线光缆向入户光缆的转接与分纤； 该组件的 适配器的两端插口处设置密封部件， 密封部件与插装到适配器插口的预制接 头配合对适配器插口形成密封防护。
上述组件中的密封部件 3可采用多种形式， 如可采用密封橡胶圈， 密封橡 胶圈可固定设置在所述适配器的插口内 （见图 1 ) , 光缆预制插头穿过密封橡 胶圈插装到适配器的插口内， 密封橡胶圈夹设在光缆预制插头与适配器的插 口内壁之间， 对适配器的插口处形成很好的密封防护。 如图 2所示， 密封橡胶 圈也可以直接固定设置在光缆预制插头上， 即密封橡胶圈套装在光缆预制插 头外形成一圈密封圈， 这种结构的光缆预制插头插装到所述适配器的插口内 后， 与光缆预制插头配合， 密封橡胶圈夹设在光缆预制插头与适配器的插口 内壁之间， 对适配器的插口处形成很好的密封防护。
如图 3所示， 密封部件 3也可采用塑胶盖， 塑胶盖内设置橡胶圈， 塑胶盖 的大小与适配器的插口的大小相匹配， 塑胶盖能扣在适配器的插口上盖住适 配器的插口， 塑胶盖固定设置在插装至所述适配器的插口内的光缆预制插头 上， 光缆预制插头向适配器内插装后， 塑胶盖扣在适配器的插口上， 橡胶圈 则夹设在塑胶盖内壁与适配器插口的外壁之间， 这种结构的塑胶盖与插装到 适配器的插口上的光缆预制插头配合， 可对适配器的插口处形成很好的密封 防护。
可以知道， 上述组件中的密封部件 3也可采用其它的结构形式， 只要保证 能使适配器的插口在插装光缆的预制接头后， 起到很好的密封防护作用满足 室外环境使用即可。 并且， 在上述组件使用中， 也可以未插装光缆预制接头 的适配器的插口上设置密封盖或密封塞， 对未插装光缆预制接头的适配器的 插口进行密封防护。
如图 4所示， 上述组件中进一步可包括配线光缆分支组件， 该配线光缆分 支组件由光缆分支器 7和至少一个预制接头构成， 其中， 光缆分支器 7用于与 配线光缆连接， 可将连接的一根配线光缆分为多根分支光缆（分出的分支光 缆数量可与入户光缆的光纤芯数相等） ， 而预制接头设置在光缆分支器 7分出 的各分支光缆的端部。 这样通过该配线光缆分支组件可方便的将一根配线光 缆分为多根分支光缆， 并通过各分支光缆端部设置的预制接头， 实现将配线 光缆快速连接到适配器安装支架 1的各适配器 2上， 实现了使配线光缆与该预 制光缆分纤组件的快速连接与定位。
上述组件中的适配器安装支架 1一般采用板式结构， 适配器安装支架 1上 设置的安装位 4、 适配器 2和密封部件 3均可以设置多个， 多个安装位以行列分 布的方式设置在所述适配器安装支架 1的板体上， 每个安装位 4内可至少设置 一个适配器 2 , 每个适配器 2两端的插口上分别设置一个密封部件 3 , 这样可满 足多条配线光缆与入户光缆连接的需要。
上述适配器安装支架 1上的安装位 4可以是设置在适配器安装支架 1板体上 的通孔， 可在通孔内壁上设置卡装所述适配器 2的定位部 41 (见图 5 ) , 在适 配器 2外面设置外壳 21 , 外壳 21上设有与所述适配器安装支架 1上通孔 21内壁 上定位部 41形状匹配的卡装部 22 (可参见图 6 , 图 6示意出双芯适配器， 其它 单芯或多芯适配器外面设置外壳的结构可采用与图 6类似的结构） ， 通过所述 外壳 21上的卡装部 22可使所述适配器 2连同外壳 21—同卡装在所述适配器安装 支架 1的通孔 21内， 使得适配器 2可以方便的活动设置到作为安装位 4的通孔 内， 便利了适配器 2在适配器安装支架 2上的安装与拆卸； 也可将适配器固定 设置在安装位内， 可保证适配器在适配器安装支架上的稳固性。
上述预制光缆分纤组件中， 每个适配器均可采用多芯光缆预制接头适配 器、 双芯光缆预制接头适配器或单芯光缆预制接头适配器中的任一种或任意 几种， 为使该预制光缆分纤组件满足户外使用的要求， 适配器可采用满足户 外防护等级的适配器， 达到防潮、 防老化和防雷电的要求。 所用的适配器的 接口形式要匹配 SC、 LC、 FC等各种类型的光纤接头。
上述预制光缆分纤组件的板式结构适配器安装支架， 可以是方形板、 圆 形板或三角形板等各种结构， 适配器安装支架也可以采用其它结构形式， 只 要适合在于入户接入点的环境处安装， 并方便在支架上安装适配器即可， 适 配器安装支架上的安装位的结构形式只要满足适配器的安装， 及方便光缆的 预制接头插装即可， 要使所述适配器的长度不小于设置在适配器安装支架上 作为安装位的通孔的长度， 使适配器长于通孔以方便光缆的预制接头插装。 作为安装位的通孔可采用圆形、 方形、 三角形等多种形状， 只要便于设置适 配器即可。
进一步， 如图 7所示， 可以在上述组件的适配器安装支架 1上设置普通通 孔（即不在通孔内壁上设置定位部）作为安装位 4 , 并在通孔中设置直通式导 管作为适配器， 直通式导管可采用圆形、 方形、 三角形等多种形状， 并使直 通式导管的长度不小于所述作为安装位的通孔的长度， 便于光缆的预制接头 插装， 应用时可将配线光缆的各分支光缆的预制接头和入户光缆的预制接头 插装到作为适配器的直通式导管内， 实现配线光缆与和入户光缆连接。 这种 结构的预制光缆分纤组件， 结构更筒单， 不用在适配器外面设置卡装用的外 壳， 在满足多数应用场景下对配线光缆向入户光缆的转接与分纤要求时， 可 降低预制光缆分纤组件的成本。
可在上述预制光缆分纤组件的适配器安装支架上进一步设置固定部件， 通过固定部件可以方便在室外用户接入点处固定安装该适配器安装支架 （即 实现固定安装该预制光缆分纤组件） 。
进一步也可以在上述预制光缆分纤组件的适配器安装支架上设置固定配 线光缆和入户光缆的线体的部件， 保证连接后配线光缆和入户光缆的稳固。
如图 8、 9所示， 使用本实施例提供的预制光缆分纤组件 51 , 在用户接入 点可连接配线光缆和入户光缆， 完成由配线光缆向入户光缆的转接与分纤。 具体是将配线光缆的分支光缆的预制接头 52 , 插装于该组件 51的适配器的一 端， 适配器另一端插装入户光缆的预制接头 5 3 , 完成配线光缆向入户光缆的 转接， 将入户光缆连接至用户侧。
上述的预制光缆分纤组件结构筒单， 体积较小， 无需大的安装空间要 求； 使用时将配线光缆通过配线光缆分支器进行分纤和成端， 通过安装在适 配器安装支架上的适配器连接预制的配线光缆和入户光缆， 将配线光缆的各 分支光缆的预制接头和入户光缆的预制接头插装到该组件的适配器上， 即实 现由配线光缆到入户光缆的连接与分纤。 用该组件无需使用熔接方式接续配 线光缆与入户光缆， 降低了施工复杂性， 方便的实现了分纤转接功能， 也可 方便了从单端口到 12端口升级， 无需更换整个设备， 只需增加适配器即可， 有效的节约了成本； 并且， 适配器可方便的在适配器安装支架上进行安装与 拆卸， 无需特殊工具； 该组件可满足管道、 架空等安装要求， 方便了复杂环 境作业， 提高了分纤操作效率及后续维护、 更换时的便利性。
本发明实施例的预制光缆分纤组件的应用， 可避免在室外用户接入点处因 使用分纤盒连接配线光缆和入户光缆操作时， 需要重复开启、 熔接、 装卸大 量螺釘等复杂工序， 可降低施工难度， 有效消除光纤网络设计、 施工和使用 中， 各种不定因素可能对光纤链路造成的损伤或安全影响， 充分保证系统安 全及满足设计要求。
实施例二
本实施例提供一种光分配网络系统， 包括： 配线光缆、 入户光缆和光缆 分纤组件； 其中， 所述光缆分纤组件采用上述实施例一中给出的预制光缆分 纤组件， 一般设置在室外用户接入点；
所述配线光缆一端用于连接局端设备， 另一端设有预制接头；
所述入户光缆一端设有预制接头， 另一端用于连接终端设备；
所述配线光缆的分支光缆的预制接头和入户光缆的预制接头均插装到所 述光缆分纤组件的适配器上， 通过所述光缆分纤组件的适配器使所述配线光 缆与入户光缆进行转接与分纤； 所述光缆分纤组件的密封部件对插装光缆的 预制接头的适配器插口处进行密封防护。 这种光分配网络系统由于室外用户 接入点处的光缆分纤组件便于配线光缆向入户光缆进行转接与分纤， 提高了 转换及分纤时的操作效率， 也提高了后续维护时的方便性， 降低了成本。
以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并不 局限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可 轻易想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明 的保护范围应该以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种预制光缆分纤组件， 其特征在于， 包括：
适配器、 适配器安装支架和密封部件；
所述适配器安装支架上设有安装位， 所述适配器设置在所述安装位内， 所述适配器两端设有插口， 通过两端的所述插口能使配线光缆的预制接头和 入户光缆的预制接头插装到所述适配器内进行连接；
所述适配器的两端插口处设置有所述密封部件， 所述密封部件与插装到 适配器插口上的预制接头配合对适配器插口形成密封防护。
2、 根据权利要求 1所述的预制光缆分纤组件， 其特征在于， 还包括由光 缆分支器和至少一个预制接头构成的配线光缆分支组件， 其中， 所述光缆分 支器能将一根配线光缆分成多根分支光缆， 所述预制接头设置在所述光缆分 支器分出的分支光缆的端部。
3、 根据权利要求 1所述的预制光缆分纤组件， 其特征在于， 所述密封部 件采用密封橡胶圈， 密封橡胶圈固定设置在所述适配器的插口内。
4、 根据权利要求 1所述的预制光缆分纤组件， 其特征在于， 所述密封部 件采用密封橡胶圈， 密封橡胶圈固定设置在插装至所述适配器的插口内的光 缆预制插头上。
5、 根据权利要求 1所述的预制光缆分纤组件， 其特征在于， 所述密封部 件采用塑胶盖， 塑胶盖内设置橡胶圈， 塑胶盖的大小与适配器的插口的大小 相匹配， 能盖住适配器的插口， 塑胶盖固定设置在插装至所述适配器的插口 内的光缆预制插头上。
6、 根据权利要求 1所述的预制光缆分纤组件， 其特征在于， 所述适配器 安装支架上的安装位、 适配器和密封部件均为多个， 每个安装位内至少设置 一个适配器， 每个适配器两端的插口分别对应设置一个密封部件。
7、 根据权利要求 6所述的预制光缆分纤组件， 其特征在于， 所述多个安 装位以行列分布的方式设置在所述适配器安装支架上。
8、 根据权利要求 1或 2任一项所述的预制光缆分纤组件， 其特征在于， 所 述适配器安装支架为板式结构， 安装位为设置在适配器安装支架的板体上的 通孔。
9、 根据权利要求 8所述的预制光缆分纤组件， 其特征在于， 所述通孔内 壁上设有卡装所述适配器的定位部。
10、 根据权利要求 9所述的预制光缆分纤组件， 其特征在于， 所述适配器 外面设有外壳， 外壳上设有与所述适配器安装支架上通孔内壁上定位部形状 匹配的卡装部， 通过所述卡装部使所述适配器经其外壳卡装在所述适配器安 装支架的通孔内。
11、 根据权利要求 10所述的预制光缆分纤组件， 其特征在于， 所述适配 器的长度不小于所述适配器安装支架的板体上的通孔的长度。
12、 根据权利要求 10所述的预制光缆分纤组件， 其特征在于， 所述适配 器采用直通式导管， 所述直通式导管的长度不小于所述适配器安装支架的板 体上的通孔的长度。
1 3、 根据权利要求 1所述的预制光缆分纤组件， 其特征在于， 所述适配器 采用满足户外防护等级要求的光缆预制接头适配器。
14、 根据权利要求 1、 2或 1 3所述的预制光缆分纤组件， 其特征在于， 所 述适配器采用多芯光缆预制接头适配器、 双芯光缆预制接头适配器或单芯光 缆预制接头适配器中的任一种或任意几种。
15、 根据权利要求 1或 2任一项所述的预制光缆分纤组件， 其特征在于， 所述适配器安装支架上设有安装该适配器安装支架用的固定部件。
16、 一种光分配网络系统， 其特征在于， 包括：
配线光缆、 入户光缆和光缆分纤组件； 其中， 所述光缆分纤组件采用上 述权利要求 1或 2任一项所述的预制光缆分纤组件；
所述配线光缆一端用于连接局端设备， 另一端设有预制接头；
所述入户光缆一端设有预制接头， 另一端用于连接终端设备；
所述配线光缆的分支光缆的预制接头和入户光缆的预制接头均插装到所 述光缆分纤组件的适配器上， 通过所述光缆分纤组件的适配器使所述配线光 缆与入户光缆进行转接与分纤； 所述光缆分纤组件的密封部件对插装光缆的 预制接头的适配器插口处进行密封防护。
PCT/CN2011/079315 2010-09-30 2011-09-05 预制光缆分纤组件及光分配网络系统 WO2012041153A1 (zh)

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