WO2014107922A1 - 光纤适配器 - Google Patents

光纤适配器 Download PDF

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Publication number
WO2014107922A1
WO2014107922A1 PCT/CN2013/070881 CN2013070881W WO2014107922A1 WO 2014107922 A1 WO2014107922 A1 WO 2014107922A1 CN 2013070881 W CN2013070881 W CN 2013070881W WO 2014107922 A1 WO2014107922 A1 WO 2014107922A1
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WO
WIPO (PCT)
Prior art keywords
adapter
slot
base
door
optical fiber
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PCT/CN2013/070881
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English (en)
French (fr)
Inventor
杨国
钟志云
王七月
Original Assignee
深圳日海通讯技术股份有限公司
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Publication of WO2014107922A1 publication Critical patent/WO2014107922A1/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
    • G02B6/24—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
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
    • G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
    • 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
    • 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
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means

Definitions

  • the present invention relates to the field of optical fiber communication devices, and in particular to a fiber optic adapter.
  • the technical problem to be solved by the present invention is to provide a fiber optic adapter.
  • a fiber optic adapter includes an adapter body and a protection door, the adapter body including a socket for inserting a single-core plug or a dual-core optical fiber plug therein;
  • the pitch of the center of the slot into which the single-core plug is inserted is 2.50 mm - 4.50 mm, and the pitch of the center of the slot into which the two-core plug is inserted is 5.00 mm - 9.00 mm.
  • the protection door comprises a base and a door body, the base is detachably mounted in the slot, the door body is rotatably coupled to the base, and is capable of being in a protective position and a non- Rotate back and forth between the protection positions.
  • the protection door comprises a resetting device disposed between the base and the door body to provide the door body with an elastic force for maintaining the protective position.
  • the door body is provided with a retaining groove for protecting the optical fiber plug front end.
  • the inner wall surface at the front end of the slot and the base surface are respectively provided with an interfitting engagement structure to fix the base into the slot.
  • the mating structure includes a protrusion disposed at a bottom of the front end of the slot and a groove disposed at a lower surface of the base, the protrusion being embedded in the groove.
  • the protrusion has an inverted trapezoidal cross section
  • the groove has an inverted trapezoidal cross section
  • the width of the base is larger than the width of the door body, and the cross section of the inlet of the front end of the slot is a narrow and wide 'convex' shape.
  • the bottom of the adapter body is formed with at least one blind hole in the extending direction perpendicular to the slot for mounting the internal components of the adapter body; the fiber optic adapter further includes at least one cover to cover The at least one blind hole.
  • two opposite sides of the at least two covers are respectively provided with two limiting structures to respectively cooperate with two opposite holes of the at least two blind holes; in the two limiting structures One is an elastic inverted buckle with a slanted guiding surface and the other is a limiting block.
  • the beneficial effects of the present invention are: compared with the related art, since the present invention provides a fiber optic adapter
  • the center of the two single-pin plug slots is 2.50mm-4.50mm, and the center of the two-pin plug slot is 5.00mm-9.00mm It is able to set more slots in the same volume for more fiber plugs to be inserted, which greatly increases the mounting density of the fiber plugs.
  • FIG. 1 is a partial perspective exploded view of a fiber optic adapter in some embodiments of the present invention
  • Figure 2 is a partial perspective exploded view of the protective door shown in Figure 1;
  • FIG. 3 is a partial perspective exploded view of a fiber optic adapter in some embodiments of the present invention.
  • Figure 4 is a schematic structural view of the cover body shown in Figure 3;
  • Figure 5 is a cross-sectional structural view of the optical fiber adapter shown in Figure 1;
  • Figure 6 is a reference diagram of the state of use of the fiber optic adapter shown in Figure 1 in one state;
  • Figure 7 is a reference diagram of the state of use of the fiber optic adapter shown in Figure 1 in another state.
  • FIG. 1 and 2 illustrate a fiber optic adapter in some embodiments of the invention, which may include an adapter body 10 And a plurality of protective doors 20 mounted in the adapter body 10 to protect the fiber optic plugs 40 in the adapter body 10. And reducing the leakage of light in the adapter body 10, reducing the leakage of light to the user's eyes.
  • the adapter body 10 can be in the form of a flat rectangular parallelepiped in some embodiments, which can be constructed from materials such as plastic.
  • Adapter body 10 In some embodiments, a plurality of slots 11 may be included, which are arranged in a row in the lateral direction of the adapter body 10 and extend through the length of the adapter body 10 for a plurality of fiber optic plugs 40. Plug in it.
  • the plurality of protection doors 20 are detachably mounted in the plurality of slots 11 respectively to block the plurality of slots 11 when the fiber plug 40 is not inserted in the adapter body 10 .
  • the spacing of the centers of these slots 11 is:
  • the center of the two single-pin plug slots has a pitch of 2.50 mm - 4.50 mm
  • the center of the two twin-core plug slots has a pitch of 5.00 mm - 9.00 mm. It is smaller than the existing one and can accommodate more slots 11 in the same volume, so that more fiber plugs 40 are inserted therein, which greatly increases the mounting density of the fiber plug 40.
  • the protective door 20 may, in some embodiments, include a base 21 and a door body 22 to which the base 21 is rotatably coupled, It can be rotated back and forth between a protective position (as shown in Figure 5) and an unprotected position (shown in Figure 7).
  • the protective door 20 may in some embodiments be a detachably loaded adapter slot 11
  • the separate component, protection door 20 is directly embedded in slot 11 through the port of slot 11.
  • the protective door 20 as a separate component not only facilitates the protection of the door 20 The installation and use are also convenient for its production. When the protection door 20 is damaged, the protection door 20 can be directly replaced, and the entire fiber adapter is not replaced, which has high economic value.
  • the base 21 and the door 22 are coupled by a shaft 23, the shaft 23
  • a reset device is provided on the door so that the door can be automatically switched when the fiber plug 40 is inserted and removed.
  • the resetting device can adopt a torsion spring 24 as shown in FIG. 2, and both ends of the torsion spring 24 abut against the protection door Between 22 and base 21.
  • the protective door 22 may also be provided with a cube protrusion 221, correspondingly at the protrusion 221
  • the two sides form a yielding groove.
  • the retaining slot is mainly used to prevent the optical fiber at the front end of the optical fiber plug 40 from directly contacting the door 22, which is beneficial to the protection of the optical fiber plug 40.
  • the lower surface is provided with a mating mating structure to secure the base 21 into the slot.
  • the bottom of the slot 11 port may also be provided with a protrusion 111 for limiting, correspondingly, at the base of the protection door 20.
  • the lower surface is provided with a recess 211 for limiting, and the projection 111 and the recess 211 are matched.
  • the use of the projection 111 and the recess 211 facilitates the protection of the base of the door 20 21 Horizontal limit.
  • the shape of the projection 111 and the cross section of the recess 211 may be rectangular, although it is understood that other shapes are also possible.
  • the base 21 is wider than the door 22, correspondingly, the slot 11
  • the entrance of the front end is also provided with a structure that is narrower in width and width, that is, the cross section of the opening at the front end of the slot 11 has an approximate 'convex shape, and the base 21 is just confined in the narrow 'convex' structure of the lower width. This is good for protecting the door 20 The longitudinal limit of the pedestal 21 .
  • the cross-section of the projection 111 is an inverted trapezoid
  • the cross-section of the recess 211 is an inverted trapezoid
  • the protrusion 111 It may be a dovetail structure and the recess 211 is a dovetail slot.
  • the mating structure can simultaneously achieve the lateral and longitudinal limits of the protective door 20.
  • the bottom of the adapter body 10 is formed with a plurality of blind holes 12 in a direction perpendicular to the slot 11. . These blind holes 12 are used to load some of the components of the fiber optic adapter into the adapter body 10.
  • the blind hole 12 is provided with a cover 30 to cover at least one blind hole 12.
  • the opposite sides of the cover 30 are provided with a constrained structure.
  • the limiting structure on one side of the cover body 30 is an elastic buckle 31, and the limiting structure on the other side is a limiting block 32.
  • the elastic undercut 31 and the stop block 32 allow the cover 30 to be relatively easily pressed into the blind hole 12 perpendicular to the slot 11 and not easily fall off.
  • the cover 30 The pressing end is provided with a slanted guiding surface 311 for facilitating the insertion of the cover 30.
  • the door 22 of the protective door 20 is in a protective position, the door 22 and the base 21 The angle between them is an obtuse angle.
  • the fiber optic plug 40 enters the fiber optic adapter from the front end of the slot 11 of the fiber optic adapter and above the base 21.
  • the door 22 is in an unprotected position and the angle between the door 22 of the protective door 20 and the base 21 is 180 degrees.
  • the function of the resetting device returns the door body 22 to the protection position, and the angle between the door body 22 and the base 21 is an obtuse angle.

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

Abstract

本发明涉及一种光纤适配器，该光纤适配器，包括适配器主体以及保护门，所述适配器主体包括插槽，以供单芯插头或双芯光纤插头插设于其中；供所述单芯插头插入的插槽的中心的间距为2.50mm-4.50mm，供所述双芯插头插入的插槽的中心的间距为5.00mm-9.00mm。本发明具有更高安装密度的有益效果。

Description

光纤适配器 技术领域
本发明涉及光纤通信器件领域，具体涉及一种光纤适配器。
背景技术
随着 TTTH （光纤到家）的大规模推进，光纤网络向更大带宽、更大容量的方向发展，光接入网中的光纤数量的需求也越来越多，对相应硬件设备的交接容量也越来越大，要求光纤连接器的安装密度也越来越高。因此对于光纤适配器上单位面积内能插接的光纤插头的数目的需求也越来越多。现有的光纤适配器已经无法满足这种需求。
发明内容
本发明要解决的技术问题在于，提供一种光纤适配器。
本发明解决其技术问题所采用的技术方案是： 一种光纤适配器，包括适配器主体以及保护门，所述适配器主体包括插槽，以供单芯插头或双芯光纤插头插设于其中；
供所述单芯插头插入的插槽的中心的间距为2.50mm-4.50mm，供所述双芯插头插入的插槽的中心的间距为5.00mm-9.00mm。
优选地，所述保护门包括基座以及门体，所述基座可拆卸地安装于所述插槽中，所述门体转动连接于所述基座上，能够在一个保护位置和一个非保护位置之间来回转动。
优选地，所述 保护门包括 复位装置，所述复位装置设置于所述基座与所述门体之间，以给所述门体提供一个用于保持在所述保护位置上的弹性力。
优选地，所述门体上设置有用于保护光纤插头前端的光纤的让位槽。
优选地，所述插槽前端入口处的内壁面以及所述基座表面分别设置有互相配合的配合结构，以将所述基座固定到所述插槽中。
优选地，所述配合结构包括设置于所述插槽前端入口处的底部的凸起以及设置于所述基座下表面的凹槽，所述凸起嵌置于所述凹槽中。
优选地，所述凸起的横截面呈倒梯形，所述凹槽的横截面呈倒梯形。
优选地，所述基座的宽度大于所述门体的宽度，所述插槽前端的入口的断面呈上窄下宽的'凸'字形。
优选地，所述适配器主体的底部在垂直于所述插槽的延伸方向上形成有至少一个盲孔，以供适配器主体的内部元件的安装；所述光纤适配器还包括至少一个盖体，以覆盖所述至少一个盲孔。
优选地，所述至少两个盖体的两相对侧分别设置有两个限位结构，以分别与所述至少两个盲孔的两相对孔沿相配合；所述两个限位结构中的一个为带有倾斜导引面的弹性倒扣，另一个为限位块。
本发明的有益效果是：与相关技术相比，由于本发明提供光纤适配器 两个单芯插头插槽的中心的间距为2.50mm-4.50mm，双芯插头插槽的中心的间距为5.00mm-9.00mm ，能够在相同体积内设置更多的插槽以供更多的光纤插头插入，极大的提高了光纤插头的安装密度。
附图说明
下面将结合附图及实施例对本发明作进一步说明，附图中：
图 1 是本发明一些实施例中的光纤适配器的局部立体分解示意图；
图 2 是图 1 所示保护门的局部立体分解示意图；
图 3 是本发明一些实施例中的光纤适配器的局部立体分解示意图；
图 4 是图 3 所示盖体的结构示意图；
图 5 是图 1 所示的 光纤适配器的剖面结构示意图 ；
图 6 是图 1 所示 光纤适配器在一种状态下的 使用状态参考图；
图 7 是图 1 所示 光纤适配器在另一状态下的使用状态参考图 。
具体实施方式
以下结合具体实施例和说明书附图对本发明做进一步详细说明。
图 1 和图 2 示出了本发明一些实施例中的光纤适配器，该光纤适配器可包括适配器主体 10 以及若干个保护门 20 ，该若干个保护门 20 安装于该适配器主体 10 中，以保护适配器主体 10 内的光纤插头40 ，并减少适配器主体10内的光线外泄，降低光线外泄对用户的眼睛造成危害。
如图所示，适配器主体 10 在一些实施例可呈扁平的长方体式构造，其可以采用塑料等材料制成。适配器主体 10 在一些实施例中可包括若干个插槽 11 ，这些插槽 11 在适配器主体 10 横向上排成一排，并在适配器主体 10 的长度方向贯通，以供若干个光纤插头 40 插设于其中。该若干个保护门 20 分别可拆卸地安装于该若干个插槽 11 中，以在适配器主体 10 中未插入光纤插头 40 时，分别遮挡该若干个插槽 11 。
具体地，这些插槽 11 的中心的间距为： 两个单芯插头插槽的中心的间距为2.50mm-4.50mm，两个双芯插头插槽的中心的间距为5.00mm-9.00mm。 比现有的都小，能够满足在相同的体积内设置更多的插槽 11 ，以供更多的光纤插头 40 插入其中，这样大大提高了光纤插头 40 的安装密度。
保护门 20 在一些实施例中可包括基座 21 以及基座 21 转动连接的门体 22 ， 能够在一个保护位置（如图5所示）和一个非保护位置（如图7所示）之间来回转动 。保护门 20 在一些实施例中可以是一个可拆卸地装入适配器插槽 11 的独立组件，保护门 20 通过插槽 11 的端口直接嵌置在插槽 11 内。作为独立组件的保护门 20 ，不仅有利于保护门 20 的安装和使用，也便于其生产。当保护门 20 有损坏的时候，可以直接更换保护门 20 即可，不用换掉整个光纤适配器，具有较高的经济价值。
在一些实施例中，基座 21 和门体 22 通过转轴 23 连接，转轴 23 上设置有复位装置，使得门体在光纤插头 40 插入和拔出的时候可以实现自动开关。复位装置可以采用如图 2 所示的扭簧 24 ，该扭簧 24 的两端抵靠在保护门 22 和基座 21 之间。
在一些实施例中，保护门 22 上还可以设置有立方体突起 221 ，相应地，在突起 221 的两边形成让位槽。让位槽主要用于防止光纤插头 40 前端的光纤直接 和门体 22 接触，有利于光纤插头 40 的保护 。
再如图 1 和如图 2 所示，在一些实施例中，在插槽 11 端口的底部和基座 21 下表面设置有相互配合的配合结构，以将基座 21 固定到插槽中。
在一些实施例中，插槽 11 端口的底部还可以设置有用于限位的凸起 111 ，对应地，在保护门 20 的基座 21 下表面设置有用于限位的凹槽 211 ，凸起 111 和凹槽 211 相配合。凸起 111 和凹槽 211 的配合使用有利于保护门 20 的基座 21 的横向限位。凸起 111 的形状以及凹槽 211 的横截面可以为矩形，当然可以理解的也可以是其它形状。
在一些实施例中，基座 21 比门体 22 宽，对应地，插槽 11 前端的入口处也设置成下宽上窄的结构，也即是插槽 11 前端的开口的断面呈近似的'凸字形，基座 21 刚好被限制在下宽上窄的'凸'字结构中。这有利于保护门 20 的基座 21 的纵向限位。
在一些实施例中，凸起 111 的横截面呈倒梯形，对应地，凹槽 211 的横截面呈倒梯形。例如，凸起 111 可以是一个燕尾结构，而凹槽 211 是一个燕尾槽。这样，这种配合结构就可以同时实现对保护门 20 横向和纵向的限位。
如图 3 所示，在一些实施例中，适配器主体 10 的底部沿着垂直于插槽 11 的方向形成有若干盲孔 12 。这些盲孔 12 用于将光纤适配器的一些部件装入适配器主体 10 中。该盲孔 12 上设置有一个盖体 30 ，以覆盖至少一个盲孔 12 。
在一些实施例中，盖体30的两相对的两侧设置有限位结构。盖体30一侧的限位结构为弹性倒扣31，另一侧的限位结构为限位块32。弹性倒扣31和限位块32使得盖体30可以比较容易的压入垂直于插槽11的盲孔12中并且不容易脱落。在一些实施例中，盖体30 压入端设置有一个倾斜的导引面 311 ，便于盖体 30 的插入。
如图 5 所示， 保护门 20 的门体 22 处于保护位置，门体 22 和基座 21 之间的夹角为钝角。如图 6 所示，光纤插头 40 从光纤适配器的插槽 11 的前端入口处，基座 21 上方进入光纤适配器。如图 7 所示，当光纤插头 40 完全计入光纤适配器后，门体 22 处于非保护位置，保护门 20 的门体 22 和基座 21 之间夹角为 180 度。当拔出光纤插头 40 后，由于保护门 20 的复位装置的作用，门体 22 重新回到保护位置，门体 22 和基座 21 的夹角为钝角。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干个改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

1 、一种光纤适配器，包括适配器主体以及保护门，所述适配器主体包括插槽，以供单芯插头或双芯光纤插头插设于其中；其特征在于，供所述单芯插头插入的插槽的中心的间距为2.50mm-4.50mm，供所述双芯插头插入的插槽的中心的间距为5.00mm-9.00mm。
2 、根据权利要求1所述的光纤适配器，其特征在于，所述保护门设置于所述插槽中,所述保护门包括基座以及门体，所述基座可拆卸地安装于所述插槽中，所述门体转动连接于所述基座上，能够在一个保护位置和一个非保护位置之间来回转动。
3 、根据权利要求 2 所述的光纤适配器，其特征在于，所述保护门包括 复位装置，所述复位装置设置于所述基座与所述门体之间，以给所述门体提供一个用于保持在所述保护位置上的弹性力。
4 、根据权利要求 3 所述的光纤适配器，其特征在于，所述门体上设置有用于保护光纤插头前端的光纤的让位槽。
5 、根据权利要求 2 至 4 任一项所述的光纤适配器，其特征在于，所述插槽前端入口处的内壁面以及所述基座表面分别设置有互相配合的装配结构，以将所述基座固定到所述插槽中。
6 、根据权利要求 5 所述的光纤适配器，其特征在于，所述装配结构包括设置于所述插槽前端入口处的底部的凸起以及设置于所述基座下表面的凹槽，所述凸起嵌置于所述凹槽中。
7 、根据权利要求 6 所述的光纤适配器，其特征在于，所述凸起的横截面呈倒梯形，所述凹槽的横截面呈倒梯形。
8 、根据权利要求 7 所述的光纤适配器，其特征在于，所述基座的宽度大于所述门体的宽度，所述插槽前端的入口的断面呈上窄下宽的'凸'字形。
9 、根据权利要求 1 述的光纤适配器，其特征在于，所述适配器主体的底部在垂直于所述插槽的延伸方向上形成有至少一个盲孔，以供适配器主体的内部元件的安装；所述光纤适配器还包括至少一个盖体，以覆盖所述至少一个盲孔。
10 、根据权利要求 9 所述的光纤适配器，其特征在于，所述至少一个盖体的两相对侧分别设置有两个限位结构，以分别与所述至少一个盲孔的两相对孔沿相配合；所述两个限位结构中的一个为带有倾斜导引面的弹性倒扣，另一个为限位块。
PCT/CN2013/070881 2013-01-14 2013-01-23 光纤适配器 WO2014107922A1 (zh)

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