WO2011160310A1 - 一种用于高密度光纤连接的光纤插头 - Google Patents

一种用于高密度光纤连接的光纤插头 Download PDF

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Publication number
WO2011160310A1
WO2011160310A1 PCT/CN2010/074534 CN2010074534W WO2011160310A1 WO 2011160310 A1 WO2011160310 A1 WO 2011160310A1 CN 2010074534 W CN2010074534 W CN 2010074534W WO 2011160310 A1 WO2011160310 A1 WO 2011160310A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
plug
ejecting
ferrule
cavity
Prior art date
Application number
PCT/CN2010/074534
Other languages
English (en)
French (fr)
Inventor
王七月
夏志刚
Original Assignee
深圳日海通讯技术股份有限公司
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 深圳日海通讯技术股份有限公司 filed Critical 深圳日海通讯技术股份有限公司
Priority to EP10853453.8A priority Critical patent/EP2587289A4/en
Priority to PCT/CN2010/074534 priority patent/WO2011160310A1/zh
Priority to JP2013513517A priority patent/JP5451946B2/ja
Priority to US13/696,719 priority patent/US9176286B2/en
Publication of WO2011160310A1 publication Critical patent/WO2011160310A1/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
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • 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
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3893—Push-pull type, e.g. snap-in, push-on
    • 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
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
    • 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
    • G02B6/3898—Tools, e.g. handheld; Tuning wrenches; Jigs used with connectors, e.g. for extracting, removing or inserting in a panel, for engaging or coupling connectors, for assembling or disassembling components within the connector, for applying clips to hold two connectors together or for crimping

Definitions

  • This invention relates to physical connection techniques in the field of optical communications, and more particularly to a fiber optic plug for high density fiber optic connections.
  • the diameter of the fiber is small, even after the protective layer is added, the diameter is still small, and hundreds of fibers can be placed in the cable with a relatively small cross-sectional area, but at the connector end, these fibers increase the occupied space. 20 to 50 times, or even higher. Since the volume of the fiber optic connector must be at least graspable by fingers, and the sufficiently stable optical coupling and holding device also takes up a certain space, the connection density is usually increased by combining a plurality of optical fibers into one pin, but this The approach is not suitable for applications that require fiber jumpers, especially those that are close to the client.
  • the technical problem to be solved by the present invention is to provide a fiber plug capable of realizing high-density fiber connection in view of the above-mentioned fiber plug which cannot meet the high-density fiber connection defect.
  • the technical solution adopted by the present invention to solve the technical problem is to construct a fiber plug for high-density fiber connection for cooperating with a fiber adapter, the fiber plug comprising a plug body, and the plug body having the fiber adapter a latching elastic buckle portion, the plug body further having an ejecting component that is triggered simultaneously when the elastic latch portion is triggered to release the plug body and the optical fiber adapter, and the pop-up assembly includes a plug body disposed in the plug body The ejection spring and the ejecting rod are ejected from the plug body when the ejecting assembly is triggered, and the ejecting rod top ejects the plug body from the optical fiber adapter on the optical fiber adapter.
  • the plug body includes a base and a tailstock connected to a tail end of the base, the base having a first cavity extending along a length thereof a second cavity, the first cavity and the second cavity are disposed in parallel, and an end surface of the front end of the base has first through holes and second through holes respectively facing the first cavity and the second cavity a hole, the first cavity receives a ferrule assembly, the ferrule of the ferrule assembly has a protrusion in the first through hole, and the second cavity receives the ejecting component, and the ejecting rod is in the The second through hole is ejected when the ejecting component is triggered.
  • the elastic buckle portion is located above the second cavity, and the elastic buckle portion includes two elastic cantilevers disposed opposite to each other, the elastic cantilever
  • the end portion has a beveled protrusion
  • the ejecting assembly further includes a control rod integrally connected with the ejecting rod, the control rod is located between the two elastic cantilevers, and the control rod has the control rod a crossbar perpendicular to the longitudinal direction, the crossbar being pressed above the elastic cantilever, the elastic cantilever being depressed when the control lever is pressed, and the elastic buckle being disengaged from the optical fiber adapter.
  • one end of the ejection spring is on the tailstock, the other end is on the ejecting rod, and the ejecting rod has a card portion thereon.
  • the upper wall of the second cavity has a blocking portion and a limiting slot sliding in front of the blocking portion, the card portion is caught on the blocking portion, and the ejection spring is compressed on the ejecting rod
  • the ejecting lever downwardly disengages the card portion from the blocking portion, and the ejecting lever is ejected forward under the action of the spring, the card The portion slides into the limit chute.
  • one side of the card portion facing away from the blocking portion is a slope.
  • the ferrule assembly includes a ferrule adjustment spring, the ferrule adjustment spring being located between the ferrule and the tailstock, the ferrule adjustment The spring sleeve is external to the fiber that is inserted into the ferrule.
  • the tailstock is fastened to the base, the tailstock is provided with an inverted buckle, and the base is provided with the inverted Buckle-fit buckle.
  • the front end of the tailstock has an extended section extending forward, and the front end of the extended section is provided with a spring seat that cooperates with the ferrule adjusting spring.
  • the optical fiber plug for high-density optical fiber connection embodying the present invention has the following beneficial effects: in the optical fiber fiber plug of the present invention, when the optical fiber plug triggers the elastic buckle portion of the plug, the optical fiber plug can be automatically popped out by the optical fiber adapter. The problem of difficulty in operation after reducing the geometrical size of the fiber plug is solved, so that a high-density fiber connection capable of jumping fiber can be realized.
  • FIG. 1 is a perspective view of a first embodiment of a fiber optic plug of the present invention
  • Figure 2 is a cross-sectional view showing a first embodiment of the optical fiber plug of the present invention
  • Figure 3 is a schematic view showing the ejecting rod of the first embodiment of the optical fiber plug of the present invention when it is ejected;
  • Figure 4 is a schematic view of a susceptor of a first embodiment of the optical fiber plug of the present invention
  • Figure 5 is a cross-sectional view of the susceptor of the first embodiment of the optical fiber plug of the present invention.
  • Figure 6 is a schematic view of the eject lever and the control lever of the first embodiment of the optical fiber plug of the present invention.
  • Figure 7 is a schematic view of a tailstock of a first embodiment of the optical fiber plug of the present invention.
  • Figure 8 is a schematic view of the first embodiment of the optical fiber plug of the present invention mated with the adapter of the multi-socket;
  • Figure 9 is a schematic view showing the first embodiment of the optical fiber plug of the present invention mated with the adapter of the single socket;
  • Figure 10 is a cross-sectional view showing a second embodiment of the optical fiber plug of the present invention.
  • Figure 11 is a schematic view showing the pop-up lever of the second embodiment of the optical fiber plug of the present invention when it is ejected;
  • Figure 12 is a cross-sectional view showing the susceptor of the second embodiment of the optical fiber plug of the present invention.
  • Figure 13 is a schematic illustration of a tailstock of a second embodiment of the fiber optic plug of the present invention.
  • the optical fiber plug for high-density optical fiber connection of the present invention is mainly for solving the problem of difficulty in operation due to the reduction of the geometry of the optical plug under the high-density optical fiber connection of the jumpable fiber.
  • the plug body of the optical fiber plug has an elastic buckle portion that is engaged with the optical fiber adapter, and the plug body further has an ejecting component that is triggered at the same time when the elastic buckle portion is triggered to release the plug body and the optical fiber adapter, and the pop-up component includes the setting.
  • the ejection spring and the ejecting rod in the plug body are ejected from the plug body when the ejecting component is triggered, and the ejecting rod top ejects the plug body from the optical fiber adapter on the optical fiber adapter.
  • the elastic plug of the plug body can be triggered by hand or by means of a tool (screwdriver, etc.), and the optical fiber plug can be ejected, which is very convenient to operate.
  • the optical fiber plug in the first embodiment of the optical fiber plug of the present invention, includes a plug body, and the plug body includes a base 100 and a tailstock 200 connected to the end of the base 100.
  • the seat 100 has a first cavity 110 and a second cavity 120 extending along the length thereof.
  • the first cavity 110 and the second cavity 120 are disposed in parallel, and the end faces of the front end of the base 100 have a first cavity 110 facing the first cavity 110 And the first through hole 111 and the second through hole 121 of the second cavity 120, the first cavity 110 houses the ferrule assembly, and the ferrule 310 of the ferrule assembly protrudes from the first through hole, the second cavity
  • the 120 houses an ejecting assembly, and the ejecting assembly includes an ejecting rod 410 and an ejection spring 420.
  • the ejecting rod 410 is ejected by the second through hole 121 when the ejecting assembly is triggered.
  • the optical cable 500 enters the base 100 from the tailstock 200, the optical fiber 510 from which the outer sheath is stripped is introduced to the ferrule 310, and the bare optical fiber 520 is inserted into the ferrule 310.
  • the ferrule assembly further includes a ferrule adjusting spring 320 between the ferrule 310 and the tailstock 200, and the ferrule adjusting spring 320 is sleeved in the ferrule The outer portion of the fiber 510 of 310.
  • the base of the plug body has a resilient buckle portion 130.
  • the elastic buckle portion 130 is located above the second cavity 120.
  • the elastic buckle portion 130 includes two elastic cantilevers 131 opposite to each other.
  • the end of the 131 has a protrusion 133 with a beveled surface 132.
  • the ejecting assembly further includes a control rod 430 integrally connected with the ejecting rod 410.
  • the control rod 430 is located between the two elastic cantilevers 131, and the control rod 430 has a length direction with the control rod 430.
  • the vertical crossbar 431 presses the crossbar 431 above the elastic cantilever 131. When the control lever 430 is pressed, the elastic cantilever 131 is depressed, and the elastic buckle 130 is disengaged from the optical fiber adapter.
  • One end of the ejecting spring 420 of the ejecting component is placed on the tailstock 200, and the other end is placed on the ejecting rod 410.
  • one end of the ejecting spring 420 is sleeved on the stud 210 of the tailstock 200, and the other end is sleeved on the ejecting rod 410.
  • the control rod 430 is limited.
  • the limit step can also be disposed on the eject lever 410.
  • the eject lever 410 has a card portion 411 thereon.
  • the upper wall of the second cavity 120 has a blocking portion 122 and a blocking portion.
  • the 411 is disengaged from the blocking portion 122, and the ejecting rod 410 is ejected forward by the ejection spring 420, and the card portion 411 is slid into the limiting chute 123.
  • the side of the card portion 411 facing away from the blocking portion 122 is a slope 412.
  • a slot 413 is provided on the lower side of the eject lever 410.
  • the tailstock 200 is fastened to the base 100 , and the tailstock 200 is provided with an undercut 201 , and the base 100 is provided with a buckle adapted to the buckle 201 .
  • Bit 101 In order to facilitate the connection of the tailstock 200 to the base 100, the tailstock 200 has a positioning slot 202, and the base 100 has a projection 102 that cooperates with the positioning slot 202.
  • the fiber optic cable 500 is secured to the tailstock by a heat shrink sleeve 600.
  • optical fiber plug of the present invention The internal structure of the optical fiber plug of the present invention is described in detail above with reference to the accompanying drawings, and the following is a description of how the optical fiber plug of the present invention operates.
  • the protrusion 133 of the elastic buckle 130 is caught in the buckle of the adapter, and the optical fiber plug needs to be pressed when it is pulled out.
  • the lever 430 presses the elastic buckle 130 downwardly to release the optical fiber plug and the adapter.
  • the card portion 411 of the eject lever 410 is disengaged from the blocking portion 122.
  • the eject lever 410 is ejected by the ejection spring 420.
  • the eject lever 410 is ejected.
  • the optical fiber plug is removed from the adapter on the fiber adapter, and the pop-up bar 410 is ejected as shown in FIG. 3, and the ejecting rod 410 is pushed back into the base 100 to reset the ejecting component.
  • Figures 8 and 9 show schematic views of the fiber optic plug of the present invention mated with a fiber optic adapter.
  • the fiber optic plug of the present invention can reduce the geometry of the fiber optic plug to achieve a higher density fiber optic connection.
  • the mounting position of the optical fiber adapter shown in FIG. 8 can only accommodate at most two plugs.
  • the installation size of the fiber adapter is the same as the original installation size.
  • a second embodiment of the optical fiber plug of the present invention is further improved on the base of the first embodiment.
  • the base 100 of the plug body in the second embodiment is further elongated in the length direction, so that the lengths of the first cavity 110 and the second cavity 120 are increased, so that
  • the advantage is that the distance between the ferrule 310 and the tailstock 200 of the fixed fiber is extended, so that when the fiber plug is inserted into the adapter, when the ferrule 310 is resisted back, the fiber has a long distance to eliminate the bending deformation. To avoid the performance of the fiber due to the bending radius being too small. Referring to FIG.
  • the structure of the tailstock 200 is also improved. Specifically, an extension portion 240 extends from the front end of the tailstock 200, and the extension portion 240 is opened.
  • the long slot, the optical fiber 510 can extend forward along the long slot, and the front end of the extended section 240 forms a fixing seat 241 of the ferrule adjusting spring.
  • the fixing base 241 is a boss having a hole through which the spring wire can be inserted, and the ferrule is inserted.
  • the spring wire of the end of the adjustment spring 320 is bent and inserted into the hole to fix the ferrule adjusting spring 320 on the tailstock 200.
  • a slope 124 is disposed at a position where the bottom of the second cavity 120 faces the limiting slot 123 and the blocking portion 122.
  • the fiber plug of the present invention when the fiber plug is triggered by the elastic buckle of the plug, the fiber plug can be automatically ejected by the fiber adapter, which solves the problem that the operation is difficult due to the reduction of the geometrical size of the fiber plug, so that the jump can be made. A high density fiber optic connection of the fiber is achieved.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Description

一种用于高密度光纤连接的光纤插头 技术领域
本发明涉及光通讯领域的物理连接技术，更具体地说，涉及一种用于高密度光纤连接的光纤插头。
背景技术
互联网和无线技术正在显著的增强信息的互联能力，这些技术在全球范围内呈指数级增长，需要支持数亿用户产生的流量，数十亿计的数字数据在全球范围内传输，通过交换机、长途光纤、城域网以及其他多种接入技术实现。光纤和光纤之间的连接，以及光纤与设备的连接都是通过连接器来实现的，随着信息互联爆炸式的增长，光纤连接的密度也要求不断的提高，即在单位体积内要实现更多路的光纤连接。
　　由于光纤的直径很小，即使在加上保护层后，直径仍然很小，在截面积相对较小的光缆中可以放入数百条光纤，但在连接器端，这些光纤会使占用空间增加20~50倍，甚至更高。由于光纤连接器的体积至少要能够用手指拿住，另外足够稳定的光耦合和保持装置也要占用一定空间，通常增加连接密度的方式是将多条光纤组合到一个插针中，但这种方式并不适合那些需要跳纤的场合，特别是接近用户端的应用。在那些需要跳纤的高度光纤连接场合，如果只是缩小光纤连接器的光纤插头几何尺寸以适应高度的光纤连接，会给操作带来很大的麻烦，稍不注意就会影响到相邻的光纤插头，例如在拔光纤插头时，一方面由于插头的体积较小不好操作，另外一方面容易误碰到相邻的光纤插头造成相邻的光纤插头的松脱。
发明内容
本发明要解决的技术问题在于，针对现有技术的光纤插头上述无法满足高密度光纤连接缺陷，提供一种可以实现高密度光纤连接的光纤插头。
　　本发明解决其技术问题所采用的技术方案是：构造一种用于高密光纤连接的光纤插头，用于和光纤适配器配合，所述光纤插头包括插头本体，所述插头本体具有与所述光纤适配器扣合的弹性扣部，所述插头本体还具有在触发所述弹性扣部使插头本体与所述光纤适配器松开时同时被触发的弹出组件，所述弹出组件包括设置在所述插头本体内的弹射弹簧和弹出杆,所述弹出杆在弹出组件被触发时由所述插头本体内弹出,所述弹出杆顶在所述光纤适配器上将所述插头本体由光纤适配器内弹出。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述插头本体包括基座以及连接在基座尾端的尾座，所述基座具有沿其长度方向延伸的第一腔体和第二腔体，所述第一腔体和第二腔体并行设置，所述基座前端的端面具有分别正对所述第一腔体和第二腔体的第一通孔、第二通孔，所述第一腔体收容有插芯组件，所述插芯组件的插芯有所述第一通孔中伸出，第二腔体收容有所述弹出组件，所述弹出杆在所述弹出组件被触发时由所述第二通孔弹出。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述弹性扣部位于所述第二腔体的上方,所述弹性扣部包括相对设置的两弹性悬臂,所述弹性悬臂的末端具有带有斜面的凸起，所述弹出组件还包括与所述弹出杆连为一体的控制杆，所述控制杆位于两所述弹性悬臂之间，所述控制杆具有与所述控制杆长度方向垂直的横杆，所述横杆压在所述弹性悬臂的上方，按压所述控制杆时，所述弹性悬臂被压下，所述弹性扣部与所述光纤适配器脱开。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述弹射弹簧的一端顶在所述尾座上，另一端顶在所述弹出杆上，所述弹出杆的上具有卡部，所述第二腔体的上壁具有一挡部以及位于所述挡部前方的限位槽滑，所述卡部卡在所述挡部上，所述弹射弹簧被压缩在所述弹出杆和所述尾座之间，按下所述控制杆时，所述弹出杆向下使所述卡部脱离所述挡部，所述弹出杆在所述弹簧作用下向前弹出，所述卡部滑入所述限位滑槽。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述卡部背对所述挡部的一侧为斜面。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述插芯组件包括插芯调节弹簧，所述插芯调节弹簧位于插芯和所述尾座之间，所述插芯调节弹簧套在接入所述插芯的光纤的外部。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述尾座与所述基座扣接，所述尾座上设置有倒扣，所述基座上设有与所述倒扣适配的扣位。
　　在本发明所述的用于高密度光纤连接的光纤插头中，所述尾座的前端具有向前延伸的延长段，所述延长段的前端设置有与插芯调节弹簧配合的弹簧座。
　　实施本发明的用于高密度光纤连接的光纤插头，具有以下有益效果：在本发明的光纤纤插头中，光纤插头在触发插头的弹性扣部时，光纤插头可以由光纤适配中自动弹出，解决了由于缩小光纤插头几何尺寸后所带操作困难的问题，使得可跳纤的高密度的光纤连接得以实现。
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是本发明的光纤插头的第一实施例的立体示意图；
　　图2是本发明的光纤插头的第一实施例的剖面图；
　　图3是本发明的光纤插头的第一实施例的弹出杆弹出时的示意图；
　　图4是本发明的光纤插头的第一实施例的基座的示意图；
　　图5是本发明的光纤插头的第一实施例的基座的剖面图；
　　图6是本发明的光纤插头的第一实施例的弹出杆以及控制杆的示意图；
　　图7是本发明的光纤插头的第一实施例的尾座的示意图；
　　图8是本发明的光纤插头的第一实施例与多插口的适配器配合的示意图；
　　图9是本发明的光纤插头的第一实施例与单插口的适配器配合的示意图;
　　图10是本发明的光纤插头的第二实施例的剖面图;
　　图11是本发明的光纤插头的第二实施例的弹出杆弹出时的示意图;
　　图12是本发明的光纤插头的第二实施例的基座的剖面图;
　　图13是本发明的光纤插头的第二实施例的尾座的示意图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。
　　本发明的用于高密度光纤连接的光纤插头主要是为了解决在实现可跳纤的高密度光纤连接时由于光下插头几何尺寸减小带来的操作困难的问题，为了解决这个问题，本发明采用如下技术方案：光纤插头的插头本体具有与光纤适配器扣合的弹性扣部，插头本体还具有在触发弹性扣部使插头本体与光纤适配器松开时同时被触发的弹出组件，弹出组件包括设置在所述插头本体内的弹射弹簧和弹出杆,弹出杆在弹出组件被触发时由插头本体内弹出,弹出杆顶在所述光纤适配器上将插头本体由光纤适配器内弹出。这样即使光纤插头的几何尺寸缩小之后，用手或借助于工具（螺丝刀等），触发插头本体的弹性扣部，即可将光纤插头弹出，操作非常便利。
　　如图1、图2和图3所示，为本发明的光纤插头的第一实施例，该光纤插头包括插头本体，插头本体包括基座100以及连接在基座100尾端的尾座200，基座100具有沿其长度方向延伸的第一腔体110和第二腔体120，第一腔体110和第二腔体120并行设置，基座100前端的端面具有分别正对第一腔体110和第二腔体120的第一通孔111、第二通孔121，第一腔体110收容有插芯组件，插芯组件的插芯310由第一通孔中伸出，第二腔体120收容有弹出组件，弹出组件包括弹出杆410和弹射弹簧420弹出杆410在弹出组件被触发时由第二通孔121弹出。光缆500由尾座200进入到基座100内，剥去外护套的光纤510引入到插芯310处，裸光纤520插入到插芯310中。为了使插芯310能够自适应调节其状态，插芯组件还包括插芯调节弹簧320，插芯调节弹簧320位于插芯310和尾座200之间，插芯调节弹簧320套在接入插芯310的光纤510的外部。
　　参看图4、图5和图6,插头本体的基座上具有弹性扣部130，弹性扣部130位于第二腔体120的上方,弹性扣部130包括相对设置的两弹性悬臂131,弹性悬臂131的末端具有带有斜面132的凸起133，弹出组件还包括与弹出杆410连为一体的控制杆430，控制杆430位于两弹性悬臂131之间，控制杆430具有与控制杆430长度方向垂直的横杆431，横杆431压在弹性悬臂131的上方，按压控制杆430时，弹性悬臂131被压下，弹性扣部130与光纤适配器脱开。
　　弹出组件的弹射弹簧420的一端顶在尾座200上，另一端顶在弹出杆410上，具体的，弹射弹簧420的一端套在尾座200的凸柱210上，另一端套在弹出杆410上，由控制杆430限位，实际中也可以在弹出杆410上设限位台阶；弹出杆410的上具有卡部411，第二腔体120的上壁具有一挡部122以及位于挡部122前方的限位槽滑123，卡部411卡在挡部122上，弹射弹簧420被压缩在弹出杆410和尾座200之间，按下控制杆430时，弹出杆410向下使卡部411脱离挡部122，弹出杆410在弹射弹簧420作用下向前弹出，卡部411滑入限位滑槽123中。为了方便弹出杆410复位，卡部411背对所述挡部122的一侧为斜面412。为了方便弹出杆410向下移动，在弹出杆410的下侧设有一槽413。
　　参看图1、图5和图7,在本实施例中，尾座200与基座100扣接，尾座200上设置有倒扣201，基座100上设有与倒扣201适配的扣位101。为了方便尾座200与基座100的连接，尾座200具有定位槽202，基座100具有与定位槽202配合的凸块102。光缆500通过热缩套管600固定在尾座上。
　　上面接合附图详细介绍了本发明的光纤插头的内部结构，下面接合附图介绍本发明的光纤插头是如何动作的。
　　如图1所示，为正常状态下的光纤插头，当光纤插头插入到光纤适配器时，弹性扣部130的凸起133卡入到适配器的扣位中，需要将光纤插头拔出时，按下控制杆430，横杆431向下压弹性扣部130，使光纤插头与适配器松开，弹出杆410的卡部411脱离挡部122，弹出杆410在弹射弹簧420的作用下弹出，弹出杆410顶在光纤适配器上将光纤插头由适配中退出，弹出杆410弹出的状态如图3所示，将弹出杆410推回至基座100内，即可实现弹出组件的复位。
　　图8和图9示出了本发明的光纤插头与光纤适配器配合的示意图，本发明的光纤插头可以减小光纤插头的几何尺寸，以实现更高密度的光纤连接。例如图8所示的光纤适配器的安装位原来最多只能容纳两个插头，改由本发明的光纤插头后，则可以接纳四个光纤插头，将容量提高了一倍，而且不需要改变设备的内部结构，光纤适配器的安装尺寸和原来的安装尺寸一致。
　　如图10、图11所示，为本发明的光纤插头的第二实施例，该实施例在第一实施例的基座上进一步作了改进。与第一实施例相比，第二实施例中的插头本体的基座100的在长度方向做了进一步的延长，使得第一腔体110和第二腔体120的长度都有所增长，这样做的好处在于，延长了插芯310到固定光纤的尾座200之间的距离，使光纤插头在插入到适配器时，当插芯310受到阻力后退时，光纤具有较长的距离来消解弯曲变形，避免由于弯曲半径过小而影响到光纤的性能。参看图13，为了避免插芯调节弹簧320也随时延长，节省成本，对尾座200的结构也做了改进，具体是在尾座200的前端延伸出一延长段240,延长段240上开有长槽，光纤510可以沿长槽向前延伸，延长段240的前端形成插芯调节弹簧的固定座241，该固定座241为一凸台，其上具有可以插入弹簧丝的孔，将插芯调节弹簧320的端部的弹簧丝折弯插入该孔，即可实现插芯调节弹簧320在尾座200上的固定。
参看图12，　　在本实施例中，为了方便弹出杆410的装配，在第二腔体120的底部对着限位滑槽123和挡部122的地方设置成斜面124。
　　本实施例的其他结构与第一实施例的结构相同，不再赘述。
　　在本发明的光纤纤插头中，光纤插头在触发插头的弹性扣部时，光纤插头可以由光纤适配中自动弹出，解决了由于缩小光纤插头几何尺寸后所带操作困难的问题，使得可跳纤的高密度的光纤连接得以实现。
　　上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。

Claims (8)

  1. 　　一种用于高密度光纤连接的光纤插头，用于和光纤适配器配合，所述光纤插头包括插头本体，所述插头本体具有与所述光纤适配器扣合的弹性扣部，其特征在于，所述插头本体还具有在触发所述弹性扣部使插头本体与所述光纤适配器松开时同时被触发的弹出组件，所述弹出组件包括设置在所述插头本体内的弹射弹簧和弹出杆,所述弹出杆在弹出组件被触发时由所述插头本体内弹出,所述弹出杆顶在所述光纤适配器上将所述插头本体由光纤适配器内弹出。
  2. 　　根据权利要求1所述的用于高密度光纤连接的光纤插头，其特征在于，所述插头本体包括基座以及连接在基座尾端的尾座，所述基座具有沿其长度方向延伸的第一腔体和第二腔体，所述第一腔体和第二腔体并行设置，所述基座前端的端面具有分别正对所述第一腔体和第二腔体的第一通孔、第二通孔，所述第一腔体收容有插芯组件，所述插芯组件的插芯有所述第一通孔中伸出，第二腔体收容有所述弹出组件，所述弹出杆在所述弹出组件被触发时由所述第二通孔弹出。
  3. 　　根据权利要求2所述的用于高密度光纤连接的光纤插头，其特征在于，所述弹性扣部位于所述第二腔体的上方,所述弹性扣部包括相对设置的两弹性悬臂,所述弹性悬臂的末端具有带有斜面的凸起，所述弹出组件还包括与所述弹出杆连为一体的控制杆，所述控制杆位于两所述弹性悬臂之间，所述控制杆具有与所述控制杆长度方向垂直的横杆，所述横杆压在所述弹性悬臂的上方，按压所述控制杆时，所述弹性悬臂被压下，所述弹性扣部与所述光纤适配器脱开。
  4. 　　根据权利要求3所述的用于高密度光纤连接的光纤插头，其特征在于，所述弹射弹簧的一端顶在所述尾座上，另一端顶在所述弹出杆上，所述弹出杆的上具有卡部，所述第二腔体的上壁具有一挡部以及位于所述挡部前方的限位槽滑，所述卡部卡在所述挡部上，所述弹射弹簧被压缩在所述弹出杆和所述尾座之间，按下所述控制杆时，所述弹出杆向下使所述卡部脱离所述挡部，所述弹出杆在所述弹簧作用下向前弹出，所述卡部滑入所述限位滑槽。
  5. 　　根据权利要求4所述的用于高密度光纤连接的光纤插头，其特征在于，所述卡部背对所述挡部的一侧为斜面。
  6. 　　根据权利要求2至5任一项所述的用于高密度光纤连接的光纤插头，其特征在于，所述插芯组件包括插芯调节弹簧，所述插芯调节弹簧位于插芯和所述尾座之间，所述插芯调节弹簧套在接入所述插芯的光纤的外部。
  7. 　　根据权利要求6任一项所述的用于高密度光纤连接的光纤插头，其特征在于，所述尾座与所述基座扣接，所述尾座上设置有倒扣，所述基座上设有与所述倒扣适配的扣位。
  8. 　　根据权利要求7所述的用于高密度光纤连接的光纤插头，其特征在于，所述尾座的前端具有向前延伸的延长段，所述延长段的前端设置有与插芯调节弹簧配合的弹簧座。
    　　
PCT/CN2010/074534 2010-06-25 2010-06-25 一种用于高密度光纤连接的光纤插头 WO2011160310A1 (zh)

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JP2013513517A JP5451946B2 (ja) 2010-06-25 2010-06-25 高密度光ファイバー接続用の光ファイバープラグ
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