WO2021164235A1

WO2021164235A1 - Optical fiber connector plug, optical fiber adapter and optical fiber connector

Info

Publication number: WO2021164235A1
Application number: PCT/CN2020/113398
Authority: WO
Inventors: 唐峰; 李秀鹏; 杨安良; 王波
Original assignee: 华为技术有限公司
Priority date: 2020-02-19
Filing date: 2020-09-04
Publication date: 2021-08-26
Also published as: CN111308615B; CN111308615A

Abstract

An optical fiber connector plug (100), an optical fiber adapter (200), and an optical fiber connector. The optical fiber connector plug (100) comprises an optical fiber (110), an insertion core (141), a connecting piece (120) and a guide cylinder (130); the insertion core (141) is fixedly connected to the optical fiber (110), the connecting piece (120) is sleeved on the optical fiber (110) and is fixedly connected to the insertion core (141), and the guide cylinder (130) is sleeved on the connecting piece (120) and surrounds the insertion core (141); and in a butt joint state, the front end of the insertion core (141) convexly extends out of the front end of the guide cylinder (130). The optical fiber adapter (200) comprises a flange (210) and an insertion core butt sleeve (240); a first cavity (211), a sleeve accommodating cavity (230) and a second cavity (221) are communicated in sequence in the flange (210); a first slot (212) formed in the periphery of the first cavity (211) and a second slot (222) formed in the periphery of the second cavity (221) are formed in the flange (210); and the insertion core butt sleeve (240) is provided in the sleeve accommodating cavity (230). The optical fiber connector comprises the optical fiber connector plug (100) and the optical fiber adapter (200).

Description

光纤连接器插头、光纤适配器和光纤连接器Optical fiber connector plug, optical fiber adapter and optical fiber connector

本申请要求于2020年2月19日提交中国国家知识产权局、申请号为202010103258.X、发明名称为“光纤连接器插头、光纤适配器和光纤连接器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 202010103258.X, and the invention title is "optical fiber connector plug, fiber optic adapter and fiber optic connector" on February 19, 2020, all of which The content is incorporated in this application by reference.

技术领域Technical field

本申请涉及光纤通信技术领域，尤其涉及一种光纤连接器插头、光纤适配器和光纤连接器。This application relates to the technical field of optical fiber communication, and in particular to an optical fiber connector plug, an optical fiber adapter, and an optical fiber connector.

背景技术Background technique

随着通信技术的发展，光纤传输被越来越多地运用到通信***中，当光纤使用增加后，如何可重复地、快速地对接两根光纤也越来越重要。目前，光纤与光纤之间一般通过光纤连接器连接，光纤连接器包括光纤适配器和两个光纤连接器插头，其中，光纤连接器插头与光纤的一端连接，两根光纤各通过一个光纤连接器插头连接到一个光纤适配器上。With the development of communication technology, optical fiber transmission is increasingly used in communication systems. As the use of optical fibers increases, how to repeatedly and quickly dock two optical fibers becomes more and more important. At present, optical fiber and optical fiber are generally connected through optical fiber connectors. Optical fiber connectors include optical fiber adapters and two optical fiber connector plugs. Among them, the optical fiber connector plug is connected to one end of the optical fiber, and the two optical fibers each pass through an optical fiber connector plug. Connect to a fiber optic adapter.

光纤适配器的两端各设有一个与光纤连接器插头适配的开口，两个光纤连接器插头分别插接在光纤适配器的两个开口中，使得两个光纤连接器插头的插芯在光纤适配器中对接，即实现两个需要连接的光纤端面对接，以使发射光纤输出的光信号能最大限度地耦合到接收光纤中。The two ends of the optical fiber adapter are each provided with an opening adapted to the optical fiber connector plug, and the two optical fiber connector plugs are respectively inserted into the two openings of the optical fiber adapter, so that the ferrules of the two optical fiber connector plugs are in the optical fiber adapter. Mid-butting, that is, to realize the end-to-face connection of two optical fibers that need to be connected, so that the optical signal output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent.

然而，当需要两个光纤连接器插头***光纤适配器中进行对接时，由于加工精度、装配精度以及光纤连接器插头的设计缺陷等影响，易出现两个光纤连接器插头在光纤适配器中对接不良问题，导致两根光纤之间的光信号耦合效率降低。However, when two fiber optic connector plugs need to be inserted into the fiber optic adapter for docking, due to the processing accuracy, assembly accuracy, and design defects of the fiber optic connector plug, the problem of poor mating of the two fiber optic connector plugs in the fiber optic adapter is likely to occur. , Resulting in a decrease in the coupling efficiency of the optical signal between the two optical fibers.

发明内容Summary of the invention

本申请实施例提供了一种光纤连接器插头、光纤适配器和光纤连接器，用于解决光纤之间光信号耦合效率低的问题。The embodiments of the present application provide an optical fiber connector plug, an optical fiber adapter, and an optical fiber connector, which are used to solve the problem of low optical signal coupling efficiency between optical fibers.

第一方面，本申请实施例提供了一种光纤连接器插头，该光纤连接器插头包括光纤、插芯、连接件和导向筒，其中，插芯与光纤固定连接，连接件套设在光纤上并与插芯的后端固定连接，导向筒套设在连接件上并环绕插芯设置；当两个光纤连接器插头***光纤适配器中以使两个插芯的前端处于对接状态时，插芯的前端凸伸出导向筒的前端。In the first aspect, an embodiment of the present application provides an optical fiber connector plug. The optical fiber connector plug includes an optical fiber, a ferrule, a connector, and a guide tube, wherein the ferrule is fixedly connected to the optical fiber, and the connector is sleeved on the optical fiber It is fixedly connected with the rear end of the ferrule, and the guide tube is sleeved on the connector and arranged around the ferrule; when the two optical fiber connector plugs are inserted into the optical fiber adapter so that the front ends of the two ferrules are in a butting state, the ferrule The front end protrudes from the front end of the guide tube.

本申请实施例提供的光纤连接器插头具有如下优点：The optical fiber connector plug provided by the embodiment of the present application has the following advantages:

当本申请实施例提供的两个光纤连接器插头在光纤适配器中进行对接时，插芯的前端凸出于导向筒的前端，使得两个插芯的前端紧密对接，进而使得发射光纤输出的光信号能够最大限度地耦合到接收光纤中，提高了光信号的耦合效率。When the two optical fiber connector plugs provided by the embodiments of the present application are docked in the optical fiber adapter, the front end of the ferrule protrudes from the front end of the guide cylinder, so that the front ends of the two ferrules are closely connected, so that the light output by the optical fiber is emitted. The signal can be coupled to the receiving fiber to the maximum, which improves the coupling efficiency of the optical signal.

在第一方面的第一种可能的实现方式中，当处于非对接状态时，所述导向筒与所述连接件固定连接，所述插芯的前端凸伸出所述导向筒的前端。如此设计，插芯的前端凸出于导向筒的前端，从而使得两个插芯的前端在光纤适配器中紧密对接。In a first possible implementation manner of the first aspect, when in a non-docking state, the guide cylinder is fixedly connected to the connecting member, and the front end of the ferrule protrudes from the front end of the guide cylinder. In this design, the front end of the ferrule protrudes from the front end of the guide cylinder, so that the front ends of the two ferrules are closely butted in the optical fiber adapter.

在一种可能的实现方式中，所述插芯的前端凸伸出所述导向筒的前端的长度至少为 0.3mm。In a possible implementation manner, the length of the front end of the ferrule protruding from the front end of the guide cylinder is at least 0.3 mm.

在第一方面的第二种可能的实现方式中，当处于非对接状态时，所述导向筒与所述连接件滑动连接，所述导向筒的后端设置有使所述导向筒的前端凸出于所述插芯的前端的弹性件。In a second possible implementation manner of the first aspect, when in a non-docking state, the guide cylinder is slidably connected with the connector, and the rear end of the guide cylinder is provided with a convex front end of the guide cylinder. An elastic piece from the front end of the ferrule.

采用如上设计，利用弹性件，非处于对接状态时使导向筒的前端凸出于插芯的前端，从而利用导向筒的前端保护插芯的前端，此外，当处于对接状态时，克服弹性件的弹力，可以使导向筒后移，使得插芯的前端凸出于导向筒的前端；弹性件还可以对导向筒起到缓冲的作用。Adopting the above design, using the elastic member, the front end of the guide cylinder protrudes from the front end of the ferrule when it is not in the docking state, so that the front end of the guide cylinder is used to protect the front end of the ferrule. The elastic force can make the guide cylinder move back, so that the front end of the ferrule protrudes from the front end of the guide cylinder; the elastic member can also play a buffering effect on the guide cylinder.

在一种可能的实现方式中，所述连接件的外周面设置有与所述连接件同轴线的环形凸起，所述导向筒的后端位于所述环形凸起和所述插芯之间，所述弹性件的两端分别与所述导向筒的后端和所述环形凸起相抵。如此设计，环形凸起能够对导向筒以及弹性件起到限位的作用。In a possible implementation, the outer peripheral surface of the connecting piece is provided with an annular protrusion coaxial with the connecting piece, and the rear end of the guide cylinder is located between the annular protrusion and the ferrule. In between, the two ends of the elastic member respectively abut against the rear end of the guide cylinder and the annular protrusion. With such a design, the annular protrusion can limit the position of the guide tube and the elastic member.

在一种可能的实现方式中，所述插芯的前端的端面为相对所述插芯的中心线倾斜的斜面。当两个光纤连接器插头对接时，插芯的前端端面设置为斜面不仅降低了对接难度，而且增大了两个插芯的接触面积，进一步提高了对接的紧密性。In a possible implementation manner, the end surface of the front end of the ferrule is an inclined surface inclined with respect to the center line of the ferrule. When the two optical fiber connector plugs are mated, the front end face of the ferrule is set to a slope not only to reduce the difficulty of mating, but also to increase the contact area of the two ferrules, and further improve the tightness of the mating.

在一种可能的实现方式中，所述导向筒的筒壁设有限位缺口，所述限位缺口自所述导向筒的前端向所述导向筒的后端延伸。限位缺口能够防止导向筒在伸入光纤适配器后发生转动，提高了光纤连接器插头的稳定性。In a possible implementation manner, the cylinder wall of the guide cylinder is provided with a limit gap, and the limit gap extends from the front end of the guide cylinder to the rear end of the guide cylinder. The limit gap can prevent the guide cylinder from rotating after being extended into the optical fiber adapter, and improve the stability of the optical fiber connector plug.

在一种可能的实现方式中，所述光纤连接器插头还包括套设于所述连接件和所述导向筒上的外套筒，且所述外套筒可绕所述导向筒的轴线旋转。外套筒用于与光纤适配器或防尘帽相连接。In a possible implementation, the optical fiber connector plug further includes an outer sleeve sleeved on the connector and the guide barrel, and the outer sleeve can rotate around the axis of the guide barrel . The outer sleeve is used to connect with the fiber optic adapter or the dust cap.

在一种可能的实现方式中，所述外套筒的内侧面设置有两个锁紧凸起，两个所述锁紧凸起相对所述外套筒的中心线对称设置，用于与光纤适配器的外周面的螺旋锁紧槽卡合。锁紧凸起与螺旋锁紧槽卡合的方式便于操作，能够提高光纤连接器插头与光纤适配器连接的可靠性。In a possible implementation, the inner side of the outer sleeve is provided with two locking protrusions, and the two locking protrusions are symmetrically arranged with respect to the center line of the outer sleeve, and are used to communicate with the optical fiber. The spiral locking groove on the outer peripheral surface of the adapter is engaged. The locking protrusion and the spiral locking groove are engaged in a convenient operation, and can improve the reliability of the connection between the optical fiber connector plug and the optical fiber adapter.

在一种可能的实现方式中，所述光纤连接器插头还包括可套设于所述导向筒与外套筒之间的防尘帽，所述防尘帽通过绳带与所述连接件连接。防尘帽用于保护光纤、插芯以及导向筒；绳带用于避免防尘帽摘下后丢失。In a possible implementation, the optical fiber connector plug further includes a dust cap that can be sleeved between the guide barrel and the outer sleeve, and the dust cap is connected to the connector by a cord . The dust cap is used to protect the optical fiber, the ferrule and the guide tube; the rope strap is used to prevent the dust cap from being lost after being removed.

在一种可能的实现方式中，所述防尘帽内部设有用于容纳所述插芯和所述导向筒的容纳腔；所述防尘帽的外周面设有两个螺旋锁紧槽，两个所述螺旋锁紧槽相对所述防尘帽的中心线对称设置，所述螺旋锁紧槽与所述外套筒内侧面的锁紧凸起卡合。In a possible implementation, the dust cap is provided with a accommodating cavity for accommodating the ferrule and the guide cylinder; the outer peripheral surface of the dust cap is provided with two spiral locking grooves, two The two spiral locking grooves are symmetrically arranged with respect to the center line of the dust cap, and the spiral locking grooves are engaged with the locking protrusions on the inner surface of the outer sleeve.

在一种可能的实现方式中，所述光纤连接器插头还包括套设于所述光纤上的热缩套管，以及套设于所述热缩套管和所述连接件上的尾套。热缩套管和尾套用于保护光纤。In a possible implementation manner, the optical fiber connector plug further includes a heat shrinkable sleeve sleeved on the optical fiber, and a tail sleeve sleeved on the heat shrinkable sleeve and the connector. Heat shrink tubing and tail boot are used to protect the optical fiber.

在一种可能的实现方式中，所述连接件的外周面设有卡槽，所述连接件与所述尾套通过设于所述卡槽中的卡环固定连接。In a possible implementation manner, a card groove is provided on the outer peripheral surface of the connector, and the connector and the tail sleeve are fixedly connected by a snap ring provided in the card groove.

第二方面，本申请实施例提供了一种光纤适配器，该光纤适配器包括法兰和插芯对接套管，其中：所述法兰的第一端设有用于供第一光纤连接器插头的插芯***的第一空腔，以及用于供所述第一光纤连接器插头的导向筒***的第一插槽；所述法兰的第二端设有用于供第二光纤连接器插头的插芯***的第二空腔，以及用于供所述第二光纤连接器插头的导向筒***的第二插槽；所述法兰还设有位于所述第一空腔和所述第二空腔之间的套管容纳腔，所述套管容纳腔的两端分别与所述第一空腔和所述第二空腔连通；所述插芯对接套管安装在所述套管容纳腔中，用于使两个所述插芯的端面在所述插芯对接套管内对接。In the second aspect, an embodiment of the present application provides an optical fiber adapter, the optical fiber adapter includes a flange and a ferrule butt sleeve, wherein: the first end of the flange is provided with a plug for the first optical fiber connector plug The first cavity into which the core is inserted, and the first slot for inserting the guide barrel of the first optical fiber connector plug; the second end of the flange is provided with an insert for the second optical fiber connector plug The second cavity into which the core is inserted, and the second slot for inserting the guide barrel of the second optical fiber connector plug; The sleeve accommodating cavity between the cavities, the two ends of the sleeve accommodating cavity are respectively communicated with the first cavity and the second cavity; the ferrule butting sleeve is installed in the sleeve accommodating cavity , The end faces of the two ferrules are butted in the ferrule butting sleeve.

本申请实施例提供的光纤适配器能够防止插芯组件晃动，提高了插芯组件与另一插芯组件之间的对接效果。The optical fiber adapter provided by the embodiment of the present application can prevent the ferrule assembly from shaking, and improve the docking effect between the ferrule assembly and another ferrule assembly.

在一种可能的实现方式中，所述套管容纳腔的两端均设置有弹性卡扣，所述弹性卡扣用于将所述插芯对接套管卡合固定在所述套管容纳腔中。弹性卡扣的设置进一步提高了插芯组件与另一插芯组件之间的对接效果。In a possible implementation manner, both ends of the sleeve accommodating cavity are provided with elastic buckles, and the elastic buckles are used to clamp and fix the ferrule butting sleeve in the sleeve accommodating cavity. middle. The arrangement of the elastic buckle further improves the docking effect between the ferrule component and another ferrule component.

在一种可能的实现方式中，所述套管容纳腔的外侧壁设有凸棱，所述凸棱与所述法兰连接。凸棱用于连接法兰和套管容纳腔的侧壁。In a possible implementation manner, the outer side wall of the sleeve accommodating cavity is provided with a protruding rib, and the protruding rib is connected with the flange. The ribs are used to connect the flange and the side wall of the casing accommodating cavity.

在一种可能的实现方式中，所述凸棱为环绕所述套管容纳腔的外侧壁设置的环形凸棱。In a possible implementation manner, the protruding rib is an annular protruding rib arranged around the outer side wall of the sleeve accommodating cavity.

在一种可能的实现方式中，所述凸棱位于所述第一插槽和所述第二插槽之间，且所述凸棱的两侧面分别与所述第一插槽的槽底面和所述第二插槽的槽底面重合。In a possible implementation manner, the protruding rib is located between the first slot and the second slot, and two side surfaces of the protruding rib are connected to the bottom surface of the first slot and the bottom of the first slot, respectively. The bottom surfaces of the second slots coincide.

在一种可能的实现方式中，沿所述法兰的轴向，所述凸棱的宽度大于或等于两个对接的所述插芯凸伸出导向筒的长度之和。In a possible implementation manner, along the axial direction of the flange, the width of the protruding rib is greater than or equal to the sum of the lengths of the two butted ferrules protruding from the guide cylinder.

在一种可能的实现方式中，以垂直于所述法兰的中心线的平面为截面，所述第一插槽和所述第二插槽的截面形状均为圆弧形；沿所述法兰的圆周方向，所述第一插槽的两端之间设有第一定位键，所述第二插槽的两端之间设有第二定位键，所述第一定位键和所述第二定位键均沿所述法兰的轴线延伸。In a possible implementation, taking a plane perpendicular to the center line of the flange as a cross section, the cross-sectional shapes of the first slot and the second slot are both arc-shaped; In the circumferential direction of the blue, a first positioning key is provided between the two ends of the first slot, and a second positioning key is provided between the two ends of the second slot. The first positioning key and the The second positioning keys all extend along the axis of the flange.

在一种可能的实现方式中，所述第一定位键和所述第二定位键之间错位设置，且所述第一定位键和所述第二定位键相对法兰的中心对称。如此设计，使得两个插芯的前端端面可以实现较好的对接，从而可以使得发射光纤输出的光信号能够最大限度地耦合到接收光纤中，提高了光信号的耦合效率。In a possible implementation manner, the first positioning key and the second positioning key are arranged in a staggered manner, and the first positioning key and the second positioning key are symmetrical with respect to the center of the flange. Such a design enables the front end faces of the two ferrules to achieve better docking, so that the optical signal output by the transmitting fiber can be coupled to the receiving fiber to the maximum extent, and the coupling efficiency of the optical signal is improved.

在一种可能的实现方式中，靠近所述法兰的第一端的所述法兰的外周面设有两个螺旋锁紧槽，每个所述螺旋锁紧槽的首端与所述法兰的第一端相通，每个所述螺旋锁紧槽的尾端用于卡合光纤连接器插头上的锁紧凸起；靠近所述法兰的第二端的所述法兰的外周面设有两个螺旋锁紧槽，每个所述螺旋锁紧槽的首端与所述法兰的第二端相通，每个所述螺旋锁紧槽的尾端用于卡合光纤连接器插头上的锁紧凸起。In a possible implementation manner, the outer peripheral surface of the flange near the first end of the flange is provided with two spiral locking grooves, and the head end of each spiral locking groove is connected to the method. The first end of the flange communicates with each other, and the tail end of each spiral locking groove is used to engage the locking protrusion on the optical fiber connector plug; the outer peripheral surface of the flange near the second end of the flange is provided There are two spiral locking grooves, the first end of each spiral locking groove is communicated with the second end of the flange, and the tail end of each spiral locking groove is used to engage the plug of the optical fiber connector The locking protrusion.

在一种可能的实现方式中，所述光纤适配器还包括两个防尘帽，每个所述防尘帽的内侧面设置有两个锁紧凸起，两个所述锁紧凸起分别与两个所述螺旋锁紧槽卡合。In a possible implementation manner, the optical fiber adapter further includes two dust caps, and the inner side of each dust cap is provided with two locking protrusions, and the two locking protrusions are connected to each other respectively. The two spiral locking grooves are engaged.

第三方面，本申请实施例提供了一种光纤连接器，该光纤连接器包括两个第一方面提供的光纤连接器插头，以及用于使两个所述光纤连接器插头的插芯端面对接的第二方面提供的光纤适配器。本申请实施例提供的光纤连接器能够使得发射光纤输出的光信号能够最大限度地耦合到接收光纤中，提高了光信号的耦合效率。In a third aspect, an embodiment of the present application provides an optical fiber connector, which includes two optical fiber connector plugs provided in the first aspect, and the ferrule ends of the two optical fiber connector plugs are connected to each other. The second aspect provides the fiber optic adapter. The optical fiber connector provided in the embodiment of the present application can enable the optical signal output by the transmitting optical fiber to be coupled to the receiving optical fiber to the maximum, thereby improving the coupling efficiency of the optical signal.

附图说明Description of the drawings

为了更清楚地说明本申请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一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，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的附图。In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

图1为本申请实施例提供的一种光纤连接器插头的结构示意图；FIG. 1 is a schematic structural diagram of an optical fiber connector plug provided by an embodiment of the application;

图2为图1中光纤连接器插头的***图；Figure 2 is an exploded view of the optical fiber connector plug in Figure 1;

图3为本申请实施例提供的另一种光纤连接器插头的结构示意图；3 is a schematic structural diagram of another optical fiber connector plug provided by an embodiment of the application;

图4为图3中光纤连接器插头的***图；Figure 4 is an exploded view of the optical fiber connector plug in Figure 3;

图5为本申请实施例提供的光纤适配器的结构示意图；Figure 5 is a schematic structural diagram of an optical fiber adapter provided by an embodiment of the application;

图6为图5中光纤适配器的法兰的立体图；Figure 6 is a perspective view of the flange of the optical fiber adapter in Figure 5;

图7为图6中法兰的剖视图；Figure 7 is a sectional view of the flange in Figure 6;

图8为本申请实施例提供的光纤连接器的结构示意图；FIG. 8 is a schematic structural diagram of an optical fiber connector provided by an embodiment of the application;

图9为图8中光纤连接器的剖视图；Figure 9 is a cross-sectional view of the optical fiber connector in Figure 8;

图10为图9中A处的放大示意图。Fig. 10 is an enlarged schematic view of A in Fig. 9.

具体实施方式Detailed ways

在相关技术中，光纤连接器包括两个光纤连接器插头和一个光纤适配器，两个光纤连接器插头从光纤适配器的两端***光纤适配器，从而实现两个光纤连接器插头的插芯对接。其中，光纤连接器插头一般包括套设于光纤上且可***光纤适配器中的导向筒，以及位于导向筒围成的空间内的插芯，插芯的后端一般与光纤连接，插芯的前端一般与导向筒的前端平齐。当两个光纤连接器插头从光纤适配器的两端***光纤适配器时，两个光纤连接器插头的插芯的前端对接。In the related art, the optical fiber connector includes two optical fiber connector plugs and one optical fiber adapter. The two optical fiber connector plugs are inserted into the optical fiber adapter from both ends of the optical fiber adapter, so as to realize the ferrule docking of the two optical fiber connector plugs. Among them, the optical fiber connector plug generally includes a guide tube sleeved on the optical fiber and can be inserted into the optical fiber adapter, and a ferrule located in the space enclosed by the guide tube. The rear end of the ferrule is generally connected to the optical fiber, and the front end of the ferrule Generally flush with the front end of the guide tube. When the two optical fiber connector plugs are inserted into the optical fiber adapter from both ends of the optical fiber adapter, the front ends of the ferrules of the two optical fiber connector plugs are butted.

然而，由于加工精度、装配精度等方面存在设计缺陷，组装而成的光纤连接器插头中，插芯的前端与导向筒的前端难以保证平齐，例如，插芯的前端凹入导向筒的前端内，导致当两个光线连接器插头在光纤适配器中进行对接时，两个光线连接器插头的导向筒的前端相抵，而两个插芯的前端未接触或虚接，即两个导向筒的前端先对接导致两个插芯的前端不能对接，从而导致两根光纤之间的光信号耦合效率降低。However, due to design defects in terms of processing accuracy and assembly accuracy, in the assembled optical fiber connector plug, the front end of the ferrule and the front end of the guide barrel are difficult to be aligned. For example, the front end of the ferrule is recessed into the front end of the guide barrel. When the two fiber optic connector plugs are mated in the fiber optic adapter, the front ends of the guide cylinders of the two fiber connector plugs abut, but the front ends of the two ferrules are not in contact or virtual connection, that is, the two guide cylinders The front ends are docked first, so that the front ends of the two ferrules cannot be docked, resulting in a reduction in the coupling efficiency of the optical signal between the two optical fibers.

针对上述问题，本申请实施例提供的光纤连接器插头中，插芯被配置为：当两个光纤连接器插头在光纤适配器中进行对接时，插芯的前端凸出于导向筒的前端，使得两个插芯的前端紧密对接，使得发射光纤输出的光信号能够最大限度地耦合到接收光纤中，提高了光信号的耦合效率。In view of the above problems, in the optical fiber connector plug provided by the embodiment of the present application, the ferrule is configured such that when two optical fiber connector plugs are mated in the optical fiber adapter, the front end of the ferrule protrudes from the front end of the guide cylinder, so that The front ends of the two ferrules are closely connected, so that the optical signal output by the transmitting fiber can be coupled to the receiving fiber to the maximum extent, and the coupling efficiency of the optical signal is improved.

为了使本申请实施例的上述目的、特征和优点能够更加明显易懂，下面将结合本申请实施例中的附图，对本申请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申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其它实施例，均属于本申请保护的范围。In order to make the above objectives, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

本申请实施例提供的光纤连接器插头中，插芯被配置为：当两个光纤连接器插头在光纤适配器中进行对接时，插芯的前端凸出于导向筒的前端。插芯的前端凸出于导向筒的前端实现方式包括但不限于：在非对接状态和对接状态时，插芯的前端均凸出于导向筒的前端；以及，在非对接状态时，插芯的前端不凸出于导向筒的前端，而在对接状态时，插芯的前端凸出于导向筒的前端。下面将上述两种情形进行分别描述。In the optical fiber connector plug provided by the embodiment of the present application, the ferrule is configured such that when two optical fiber connector plugs are mated in the optical fiber adapter, the front end of the ferrule protrudes from the front end of the guide cylinder. Implementation of the front end of the ferrule protruding from the front end of the guide barrel includes but is not limited to: in the non-butted state and the docked state, the front end of the ferrule protrudes from the front end of the guide barrel; and, in the non-butted state, the ferrule The front end of the ferrule does not protrude from the front end of the guide barrel, but in the docking state, the front end of the ferrule protrudes from the front end of the guide barrel. The above two situations will be described separately below.

实施例一Example one

如图1和图2所示，本申请实施例一提供的光纤连接器插头100包括光纤110或包含有光纤的光缆、插芯组件140、连接件120和导向筒130，其中，插芯组件140包括插芯141，插芯141与光纤110固定连接，连接件120套设在光纤110上并与插芯141的后端固定连接，导向筒130套设在连接件120上并环绕插芯141设置；当两个光纤连接器插头100***光纤适配器200中以使两个插芯141的前端处于对接状态时，插芯141的前端凸伸出导向筒130的前端。As shown in Figures 1 and 2, the optical fiber connector plug 100 provided in the first embodiment of the present application includes an optical fiber 110 or an optical cable containing the optical fiber, a ferrule assembly 140, a connector 120 and a guide barrel 130, wherein the ferrule assembly 140 It includes a ferrule 141, the ferrule 141 is fixedly connected with the optical fiber 110, the connector 120 is sleeved on the optical fiber 110 and fixedly connected to the rear end of the ferrule 141, and the guide cylinder 130 is sleeved on the connector 120 and arranged around the ferrule 141 When the two optical fiber connector plugs 100 are inserted into the optical fiber adapter 200 so that the front ends of the two ferrules 141 are in a mating state, the front ends of the ferrules 141 protrude from the front end of the guide cylinder 130.

连接件120套设于光纤110上，本实施例中连接件120可以为筒状结构，连接件120的外表面上设置有凹槽以及套设在凹槽内起密封作用的O型密封圈。插芯组件140还包括套设于插芯141上的框套142，其中，插芯141套设于光纤110上，且插芯141位于连接件120的前方，并与连接件120和光纤110的前端固定连接。当两个光纤连接器插头100在光纤适配器200中对接时，两个光纤连接器插头100上的插芯141的前端相抵接，从而使两根光纤110的端面对接。The connector 120 is sleeved on the optical fiber 110. In this embodiment, the connector 120 may have a cylindrical structure. The outer surface of the connector 120 is provided with a groove and an O-shaped sealing ring sleeved in the groove for sealing. The ferrule assembly 140 also includes a frame sleeve 142 sleeved on the ferrule 141, wherein the ferrule 141 is sleeved on the optical fiber 110, and the ferrule 141 is located in front of the connector 120 and is connected to the connector 120 and the optical fiber 110. The front end is fixedly connected. When the two optical fiber connector plugs 100 are mated in the optical fiber adapter 200, the front ends of the ferrules 141 on the two optical fiber connector plugs 100 abut against each other, so that the end faces of the two optical fibers 110 are connected.

插芯141与连接件120的连接方式可以为与连接件120直接连接，还可以通过框套142与连接件120间接连接。示例性地，如图1和图2所示，框套142的后端外表面上设置有外螺纹，连接件120的前端内壁上设置有内螺纹，内螺纹与上述外螺纹相配合，使框套142螺接在连接件120上。The ferrule 141 and the connector 120 can be connected directly to the connector 120 or indirectly connected to the connector 120 through the frame sleeve 142. Exemplarily, as shown in Figures 1 and 2, the outer surface of the rear end of the frame sleeve 142 is provided with an external thread, and the inner wall of the front end of the connector 120 is provided with an internal thread. The internal thread is matched with the external thread to make the frame The sleeve 142 is screwed on the connecting piece 120.

需要说明的是，上述实施方式中，框套142与连接件120螺纹连接后，连接件120的外表面与框套142的非螺纹段的外表面相平齐，以便于后续导向筒130在连接件120和框套142的外表面上滑动。示例性地，如图2所示，框套142的后端外表面上设置有外螺纹的部分和与其相邻的部分形成阶梯状结构，且外螺纹段的外径小于非螺纹段的外径。It should be noted that in the above-mentioned embodiment, after the frame sleeve 142 is threadedly connected to the connecting piece 120, the outer surface of the connecting piece 120 is flush with the outer surface of the non-threaded section of the frame sleeve 142, so that the subsequent guide cylinder 130 is in the connecting piece. 120 and the frame sleeve 142 slide on the outer surface. Exemplarily, as shown in FIG. 2, the outer threaded part on the outer surface of the rear end of the frame sleeve 142 and the adjacent part form a stepped structure, and the outer diameter of the outer threaded section is smaller than the outer diameter of the non-threaded section .

当本实施例提供的光纤连接器插头100处于非对接状态时，即光纤连接器插头100未插装入光纤适配器200中时，插芯141的前端不凸出于导向筒130的前端132，插芯141的前端可以与导向筒130的前端132平齐，也可以内缩于导向筒130中。插芯141的前端不凸出于导向筒130的前端132的方式，能够利用导向筒130保护插芯141的前端。When the optical fiber connector plug 100 provided in this embodiment is in a non-docking state, that is, when the optical fiber connector plug 100 is not inserted into the optical fiber adapter 200, the front end of the ferrule 141 does not protrude from the front end 132 of the guide cylinder 130, The front end of the core 141 may be flush with the front end 132 of the guide cylinder 130 or may be retracted in the guide cylinder 130. In a manner that the front end of the ferrule 141 does not protrude from the front end 132 of the guide cylinder 130, the front end of the ferrule 141 can be protected by the guide cylinder 130.

示例性地，导向筒130可以为圆筒状结构，如图2所示，以垂直于导向筒130的轴线的平面为截面，导向筒130的截面形状可以设置为弧形，或者说导向筒130的截面形状近似为C形。本实施例中，导向筒130除了导向作用外，还能够起到保护插芯141的作用，导向筒130能够周转或运输过程中以及在光纤连接器插头100的插拔过程中避免插芯141受到损伤。Exemplarily, the guide cylinder 130 may have a cylindrical structure. As shown in FIG. 2, a plane perpendicular to the axis of the guide cylinder 130 is taken as the cross section, and the cross-sectional shape of the guide cylinder 130 may be set to an arc shape, or the guide cylinder 130 The cross-sectional shape is approximately C-shaped. In this embodiment, in addition to the guiding function, the guide cylinder 130 can also protect the ferrule 141. The guide cylinder 130 can prevent the ferrule 141 from being exposed to the ferrule 141 during circulation or transportation and during the insertion and removal of the optical fiber connector plug 100. damage.

本实施例中，导向筒130与连接件120滑动连接，连接件120与插芯141连接后，连接件120的外表面与框套142的外表面相平齐，从而形成供导向筒130滑动的表面，使导向筒130能够在插芯141和连接件120的外表面滑动。当两个光纤连接器插头100对接时，导向筒130在连接件120和插芯141的外表面上朝连接件120的后端方向滑动，使插芯141的前端凸出导向筒130的前端。In this embodiment, the guide cylinder 130 is slidably connected to the connecting piece 120. After the connecting piece 120 is connected to the ferrule 141, the outer surface of the connecting piece 120 is flush with the outer surface of the frame sleeve 142, thereby forming a surface for the guide cylinder 130 to slide. , So that the guide cylinder 130 can slide on the outer surface of the ferrule 141 and the connector 120. When the two optical fiber connector plugs 100 are mated, the guide cylinder 130 slides on the outer surfaces of the connector 120 and the ferrule 141 toward the rear end of the connector 120 so that the front end of the ferrule 141 protrudes from the front end of the guide cylinder 130.

导向筒130的后端还设置有弹性件，当光纤连接器插头100处于非对接状态时，弹性件产生的弹力使导向筒130的前端凸出于插芯141的前端。另外，导向筒130的前端与光纤适配器200内导向筒插槽相抵时，克服作用在弹性件的弹力，使得导向筒130后退，从而使得插芯141的前端凸出于导向筒130的前端。本实施例中，弹性件可以设置为弹簧122或弹性橡胶，例如，如图2所示，弹性件为弹簧122。在自然状态下，弹簧122处于压缩状态，以保证导向筒130受到一个弹力作用，如7.8N至11.8N的弹力。The rear end of the guide cylinder 130 is also provided with an elastic member. When the optical fiber connector plug 100 is in a non-butting state, the elastic force generated by the elastic member causes the front end of the guide cylinder 130 to protrude from the front end of the ferrule 141. In addition, when the front end of the guide cylinder 130 abuts against the guide cylinder slot in the fiber optic adapter 200, the elastic force acting on the elastic member is overcome, and the guide cylinder 130 retreats, so that the front end of the ferrule 141 protrudes from the front end of the guide cylinder 130. In this embodiment, the elastic member may be a spring 122 or elastic rubber. For example, as shown in FIG. 2, the elastic member is a spring 122. In a natural state, the spring 122 is in a compressed state to ensure that the guide cylinder 130 is subjected to an elastic force, such as an elastic force of 7.8N to 11.8N.

在一种可能的实现方式中，如图1和图2所示，连接件120的外周面设置有与连接件120同轴线的环形凸起121，导向筒130的后端位于环形凸起121和插芯组件140之间，弹性件的两端分别与导向筒130的后端和环形凸起121相抵。在连接件120的外周面上设置有环形凸起121，环形凸起121能够对弹性件和导向筒130起限位作用，使弹性件和导向筒130的后端边缘在插芯141和环形凸起121之间滑动。In a possible implementation, as shown in FIGS. 1 and 2, the outer peripheral surface of the connecting member 120 is provided with an annular protrusion 121 coaxial with the connecting member 120, and the rear end of the guide cylinder 130 is located at the annular protrusion 121 Between the ferrule assembly 140 and the ferrule assembly 140, the two ends of the elastic member abut against the rear end of the guide cylinder 130 and the annular protrusion 121 respectively. An annular protrusion 121 is provided on the outer peripheral surface of the connecting member 120. The annular protrusion 121 can limit the elastic member and the guide barrel 130, so that the rear edge of the elastic member and the guide barrel 130 is located between the ferrule 141 and the annular protrusion. Sliding between 121.

在上述实施方式的基础上，以弹性件设置为弹簧122为例：弹簧122位于导向筒130的后端与环形凸起121之间，弹簧122的两端分别抵接在导向筒130的后端端面和环形凸起121上。当光纤连接器插头100***光纤适配器200中时，导向筒130朝靠近环形凸起121的方向滑动，位于导向筒130的后端与环形凸起121之间的弹簧122被压缩；当光纤连接器插头100未***或拔出光纤适配器200中时，位于导向筒130的后端与环形凸起121之间的弹簧122回弹，导向筒130朝远离环形凸起121的方向滑动，弹性件产生的弹力使导向筒130的前端凸出于插芯141的前端。On the basis of the above embodiment, the elastic member is set as the spring 122 as an example: the spring 122 is located between the rear end of the guide cylinder 130 and the annular protrusion 121, and both ends of the spring 122 abut against the rear end of the guide cylinder 130, respectively. The end face and the annular protrusion 121 are on. When the optical fiber connector plug 100 is inserted into the optical fiber adapter 200, the guide cylinder 130 slides toward the annular protrusion 121, and the spring 122 located between the rear end of the guide cylinder 130 and the annular protrusion 121 is compressed; When the plug 100 is not inserted or pulled out of the optical fiber adapter 200, the spring 122 located between the rear end of the guide cylinder 130 and the annular protrusion 121 rebounds, and the guide cylinder 130 slides away from the annular protrusion 121, and the elastic member generates The elastic force causes the front end of the guide cylinder 130 to protrude from the front end of the ferrule 141.

当两个光纤连接器插头100在光纤适配器200中进行对接时，两个导向筒130相抵接会产生相互作用力，或两个导向筒130在受到光纤适配器200中设定部位的阻碍后，都会产生向相背离的方向运动的趋势，当导向筒130后退运动时，位于导向筒130后端的弹簧122被压缩，位于导向筒130内的插芯141的前端凸出导向筒130的前端，实现两个光纤连接器插头100在光纤适配器200内的插芯141对接。本实施例中两个光纤连接器插头100在光纤适配器200内进行对接时，导向筒130能够后退，保证了两个插芯141之间对接的可靠性。When the two fiber optic connector plugs 100 are mated in the fiber optic adapter 200, the two guide cylinders 130 abut to produce an interaction force, or the two guide cylinders 130 will be hindered by the set position in the fiber optic adapter 200. When the guide cylinder 130 moves backward, the spring 122 at the rear end of the guide cylinder 130 is compressed, and the front end of the ferrule 141 located in the guide cylinder 130 protrudes from the front end of the guide cylinder 130 to achieve two The two optical fiber connector plugs 100 are mated with the ferrules 141 in the optical fiber adapter 200. In this embodiment, when the two optical fiber connector plugs 100 are docked in the optical fiber adapter 200, the guide cylinder 130 can be retracted, which ensures the reliability of the docking between the two ferrules 141.

在一种可能的实现方式中，导向筒130的筒壁设有限位缺口131，限位缺口131自导向筒130的前端向导向筒130的后端延伸。如图2所示，本实施例中限位缺口131的形状为长条形，限位缺口131与导向筒130的前端连通，且自导向筒130的前端向后端延伸设置，限位缺口131可以与导向筒130的后端连通，也可以不连通，本实施例中限位缺口131用于防止导向筒130转动。In a possible implementation manner, the cylinder wall of the guide cylinder 130 is provided with a limit notch 131, and the limit notch 131 extends from the front end of the guide cylinder 130 to the rear end of the guide cylinder 130. As shown in FIG. 2, the shape of the limiting notch 131 in this embodiment is a long strip, the limiting notch 131 communicates with the front end of the guide tube 130, and extends from the front end to the rear end of the guide tube 130, and the limiting notch 131 It may be connected to the rear end of the guide tube 130 or not. In this embodiment, the limiting gap 131 is used to prevent the guide tube 130 from rotating.

示例性地，光纤适配器200中设置有与导向筒130相配合的弧形插槽，沿光纤适配器200的圆周方面，弧形插槽的两端之间由定位键隔开。当两个光纤连接器插头100在光纤适配器200中对接时，光纤连接器插头100中的导向筒130与光纤适配器200相配合，定位键***导向筒130上的限位缺口131中，使导向筒130无法在插槽内转动，保证了两个光纤连接器插头100对接的稳定性。Illustratively, the optical fiber adapter 200 is provided with an arc-shaped slot matching the guide cylinder 130, and along the circumference of the optical fiber adapter 200, the two ends of the arc-shaped slot are separated by positioning keys. When the two fiber optic connector plugs 100 are mated in the fiber optic adapter 200, the guide cylinder 130 in the fiber optic connector plug 100 matches the fiber optic adapter 200, and the positioning key is inserted into the limiting gap 131 on the guide cylinder 130 to make the guide cylinder The 130 cannot rotate in the slot, which ensures the stability of the mating of the two optical fiber connector plugs 100.

在一种可能的实现方式中，插芯141的前端的端面为相对插芯141的中心线倾斜的斜面。当两个光纤连接器插头100进行对接时，两个插芯141的前端的斜面能够快速对准，不仅降低了对接难度，而且增大了两个插芯141的接触面积，进一步提高了对接的紧密性。In a possible implementation manner, the end surface of the front end of the ferrule 141 is an inclined surface inclined with respect to the center line of the ferrule 141. When the two optical fiber connector plugs 100 are mated, the inclined surfaces of the front ends of the two ferrules 141 can be quickly aligned, which not only reduces the difficulty of mating, but also increases the contact area of the two ferrules 141, which further improves the mating performance. Tightness.

如图1和图2所示，在一种可能的实现方式中，光纤连接器插头100还包括套设于连接件120和导向筒130上的外套筒150，且外套筒150可绕导向筒130的轴线旋转。外套筒150套设在导向筒130和连接件120上，外套筒150与导向筒130转动连接，转动连接的设置便于后续外套筒150与光纤适配器200连接。As shown in Figures 1 and 2, in a possible implementation, the optical fiber connector plug 100 further includes an outer sleeve 150 sleeved on the connector 120 and the guide cylinder 130, and the outer sleeve 150 can be guided around The axis of the barrel 130 rotates. The outer sleeve 150 is sleeved on the guide cylinder 130 and the connecting member 120, and the outer sleeve 150 is rotatably connected with the guide cylinder 130. The setting of the rotation connection facilitates the subsequent connection of the outer sleeve 150 and the optical fiber adapter 200.

在一种可能的实现方式中，外套筒150的内侧面设置有两个锁紧凸起151，如图1和图3所示，两个锁紧凸起151相对外套筒150的中心线对称设置，用于与光纤适配器200的外周面的螺旋锁紧槽卡合。两个锁紧凸起151关于外套筒150的中心线对称。锁紧凸起151可以为一体成型在外套筒150内侧面的凸块，该凸块具体可以设置为圆柱形，也可以设置为半球形。In a possible implementation, the inner side of the outer sleeve 150 is provided with two locking protrusions 151. As shown in FIGS. 1 and 3, the two locking protrusions 151 are opposite to the center line of the outer sleeve 150. The symmetrical arrangement is used to engage with the spiral locking groove on the outer peripheral surface of the fiber optic adapter 200. The two locking protrusions 151 are symmetrical about the center line of the outer sleeve 150. The locking protrusion 151 may be a protrusion integrally formed on the inner surface of the outer sleeve 150, and the protrusion may be configured to be cylindrical or hemispherical.

此外，如图2所示，外套筒150的外表面上设置有箭头标识，用于指示外套筒150与光纤适配器200或防尘帽170之间的锁紧或松开状态。外套筒150的外表面上还可以设置有凹凸条纹，用于在用户拧动时增大用户手指与外套筒150之间的摩擦力。In addition, as shown in FIG. 2, an arrow mark is provided on the outer surface of the outer sleeve 150 to indicate the locked or unlocked state between the outer sleeve 150 and the fiber optic adapter 200 or the dust cap 170. Concave-convex stripes may also be provided on the outer surface of the outer sleeve 150 to increase the friction between the user's fingers and the outer sleeve 150 when the user twists it.

本实施例中锁紧凸起151用于与光纤适配器200相连接，示例性地，如图1和图3所示，外套筒150与导向筒130之间设置有空隙，当光纤连接器插头100***光纤适配器200中时，光纤适配器200的端部伸入上述空隙中，且光纤适配器200面向外套筒150的表面上设置有螺旋锁紧槽，外套筒150的内侧面设置的两个锁紧凸起151分别与对应的螺旋锁紧槽卡合。In this embodiment, the locking protrusion 151 is used to connect with the optical fiber adapter 200. Illustratively, as shown in FIG. 1 and FIG. 3, a gap is provided between the outer sleeve 150 and the guide cylinder 130. When 100 is inserted into the fiber optic adapter 200, the end of the fiber optic adapter 200 extends into the above-mentioned gap, and the surface of the fiber optic adapter 200 facing the outer sleeve 150 is provided with a spiral locking groove, and two inner sides of the outer sleeve 150 are provided The locking protrusions 151 are respectively engaged with the corresponding spiral locking grooves.

请继续参阅图1和图2，在一种可能的实现方式中，光纤连接器插头100还包括可套设于导向筒130与外套筒150之间的防尘帽170，防尘帽170内部设有用于容纳插芯141和导向筒130的容纳腔，插芯141和导向筒130伸入上述容纳腔内，防尘帽170用于保护光纤110、插芯141以及导向筒130。防尘帽170的外周面设有两个螺旋锁紧槽，两个螺旋锁紧槽相对防尘帽170的中心线对称设置，螺旋锁紧槽与外套筒150内侧面的锁紧凸起151卡合。此外，防尘帽170的外部设置有箭头标识以及“0”、“1”标识，当防尘帽170与外套筒150连接时，防尘帽170和外套筒150上的箭头标识对准，箭头标识对准“0”时，防尘帽170与外套筒150松开；箭头标识对准“1”时，防尘帽170与外套筒150锁紧，进而提高了光纤连接器插头100的可靠性。Please continue to refer to FIGS. 1 and 2. In a possible implementation manner, the optical fiber connector plug 100 further includes a dust cap 170 that can be sleeved between the guide cylinder 130 and the outer sleeve 150, and the inside of the dust cap 170 An accommodating cavity for accommodating the ferrule 141 and the guide cylinder 130 is provided, the ferrule 141 and the guide cylinder 130 extend into the accommodating cavity, and the dust cap 170 is used to protect the optical fiber 110, the ferrule 141 and the guide cylinder 130. The outer peripheral surface of the dust cap 170 is provided with two spiral locking grooves. The two spiral locking grooves are symmetrically arranged with respect to the center line of the dust cap 170. The spiral locking grooves and the locking protrusions 151 on the inner surface of the outer sleeve 150 are arranged symmetrically. Snap. In addition, the outside of the dust cap 170 is provided with arrow marks and "0" and "1" marks. When the dust cap 170 is connected to the outer sleeve 150, the arrow marks on the dust cap 170 and the outer sleeve 150 are aligned , When the arrow mark is aligned with "0", the dust cap 170 and the outer sleeve 150 are loosened; when the arrow mark is aligned with "1", the dust cap 170 and the outer sleeve 150 are locked tightly, thereby increasing the optical fiber connector plug 100 reliability.

在上述实施方式的基础上，光纤连接器插头100的外套筒150内侧设置有两个锁紧凸起151，相应地，防尘帽170的外表面上设置有两个螺旋锁紧槽，分别与上述锁紧凸起151相连接，具体地，锁紧凸起151伸入螺旋锁紧槽内，通过转动外套筒150或防尘帽170，使锁紧凸起151与螺旋锁紧槽卡合连接。On the basis of the foregoing embodiment, the inner sleeve 150 of the optical fiber connector plug 100 is provided with two locking protrusions 151, and correspondingly, the outer surface of the dust cap 170 is provided with two spiral locking grooves, respectively Connected with the above-mentioned locking protrusion 151, specifically, the locking protrusion 151 extends into the spiral locking groove, and by rotating the outer sleeve 150 or the dust cap 170, the locking protrusion 151 is engaged with the spiral locking groove合连接。 Joined.

防尘帽170一般通过绳带与连接件120连接，如图2所示，本实施例中防尘帽170上固定连接有绳带171，绳带171远离防尘帽170的一端设置有环状连接圈172，具体可以为橡胶圈，该橡胶圈可以连接在光纤连接器插头100的连接件120上，橡胶圈可以连接在外套筒150后端的连接件120的外表面上。当防尘帽170摘下后，绳带171以及绳带171上橡胶圈的设置用于避免防尘帽170丢失。The dust cap 170 is generally connected to the connecting member 120 by a cord. As shown in FIG. 2, a cord 171 is fixedly connected to the dust cap 170 in this embodiment, and an end of the cord 171 away from the dust cap 170 is provided with a ring shape. The connecting ring 172 may specifically be a rubber ring, which may be connected to the connector 120 of the optical fiber connector plug 100, and the rubber ring may be connected to the outer surface of the connector 120 at the rear end of the outer sleeve 150. After the dust cap 170 is removed, the cord strap 171 and the rubber ring on the cord strap 171 are provided to prevent the dust cap 170 from being lost.

在一种可能的实现方式中，光纤连接器插头100还包括套设于光纤110上的热缩套管161，以及套设于热缩套管161和连接件120上的尾套。如图1所示，本实施例中热缩套管161设置在光纤110的后端，热缩套管161对光纤110起到绝缘保护的作用。示例性地，热缩套管161的材料可以为聚乙烯。In a possible implementation manner, the optical fiber connector plug 100 further includes a heat shrinkable sleeve 161 sleeved on the optical fiber 110 and a tail sleeve sleeved on the heat shrinkable sleeve 161 and the connector 120. As shown in FIG. 1, in this embodiment, the heat shrinkable sleeve 161 is arranged at the rear end of the optical fiber 110, and the heat shrinkable sleeve 161 plays a role of insulating and protecting the optical fiber 110. Illustratively, the material of the heat shrinkable sleeve 161 may be polyethylene.

本实施例在热缩套管161和连接件120***还设置有尾套162，尾套162设置为锥形筒状结构，并与连接件120卡合连接，尾套162也用于保护光纤110。尾套162可以先加工好后套设在热缩套管161和连接件120***，也可以直接通过注塑成型的方式形成。In this embodiment, a tail sleeve 162 is further provided on the periphery of the heat shrinkable tube 161 and the connector 120. The tail sleeve 162 is configured in a tapered cylindrical structure and is snap-connected to the connector 120. The tail sleeve 162 is also used to protect the optical fiber 110. . The tail sleeve 162 can be processed first and then sleeved around the heat shrinkable sleeve 161 and the connector 120, or it can be directly formed by injection molding.

尾套162与连接件120卡合连接的方式有多种，示例性地，如图1所示，连接件120的后端外表面沿周向设置有卡槽，卡槽内设置有至少一个卡环160；连接件120的内侧设置有用于与卡环160相配合的凹槽，连接件120上的凹槽卡接在卡环160上与该卡环160相连接，从而使尾套162与连接件120相连接。There are many ways for the tail sleeve 162 to be snap-connected to the connector 120. Illustratively, as shown in FIG. Ring 160; the inner side of the connecting piece 120 is provided with a groove for mating with the snap ring 160, the groove on the connecting piece 120 is clamped on the snap ring 160 and connected with the snap ring 160, so that the tail sleeve 162 is connected to Pieces 120 are connected.

实施例二Example two

请参阅图3和图4，本申请实施例二提供了另一种光纤连接器插头100，该光纤连接器插头100包括光纤110、插芯组件140、连接件120和导向筒130，其中，插芯组件140与光纤110固定连接，连接件120套设于光纤110上并与插芯组件140的后端固定连接，导向筒130套设在连接件120上并环绕插芯组件140设置；本实施例提供的光纤连接器插头100在非对接状态和对接状态时，插芯组件140的前端均凸出于导向筒130的前端。3 and 4, the second embodiment of the present application provides another optical fiber connector plug 100. The optical fiber connector plug 100 includes an optical fiber 110, a ferrule assembly 140, a connector 120, and a guide cylinder 130. The core assembly 140 is fixedly connected to the optical fiber 110, the connector 120 is sleeved on the optical fiber 110 and fixedly connected to the rear end of the ferrule assembly 140, and the guide cylinder 130 is sleeved on the connector 120 and is arranged around the ferrule assembly 140; this embodiment When the optical fiber connector plug 100 provided in the example is in the non-butted state and the butted state, the front end of the ferrule assembly 140 protrudes from the front end of the guide cylinder 130.

本申请实施例提供的光纤连接器插头100中，光纤110和插芯组件140的结构、与其他部件之间的连接方式或配合方式，以及其对应的功能均与上述实施例中的光纤110和插芯组件140相同，具体可参见上述相关描述，在此不再赘述。In the optical fiber connector plug 100 provided by the embodiment of the present application, the structure of the optical fiber 110 and the ferrule assembly 140, the connection mode or cooperation mode with other components, and the corresponding functions are all the same as those of the optical fiber 110 and the ferrule assembly 140 in the foregoing embodiment. The ferrule assembly 140 is the same. For details, please refer to the above-mentioned related description, which will not be repeated here.

本申请实施例与上述实施例的不同之处在于：导向筒130的后端边缘与连接件120的外表面固定连接，示例性地，固定连接的方式可以为焊接，也可以为螺纹连接。本实施例中，插芯141位于导向筒130内，且插芯141的前端凸伸出导向筒130的前端。当两个光纤连接器插头100在光纤适配器200内进行对接时，两个插芯141的前端对接，而两个导向筒130的前端不会接触，保证了两个插芯141之间对接的可靠性。The embodiment of the present application differs from the above-mentioned embodiment in that the rear end edge of the guide cylinder 130 is fixedly connected to the outer surface of the connecting member 120. Illustratively, the fixed connection method may be welding or threaded connection. In this embodiment, the ferrule 141 is located in the guide barrel 130, and the front end of the ferrule 141 protrudes from the front end of the guide barrel 130. When the two fiber optic connector plugs 100 are mated in the fiber optic adapter 200, the front ends of the two ferrules 141 are mated, but the front ends of the two guide cylinders 130 will not touch, which ensures the reliable mating between the two ferrules 141 sex.

在一种可能的实现方式中，插芯141的前端凸伸出导向筒130的前端的长度至少为0.3mm。如图3所示，光纤连接器插头100处于非对接状态，插芯141的前端凸伸出导向筒130的前端，且插芯141的前端与导向筒130的前端之间的距离大于或等于0.3mm，例如可以为0.3mm-0.9mm之间，这样的设置保证了后续两个光纤连接器插头100对接时，两个插芯141先于导向筒130对接。In a possible implementation manner, the length of the front end of the ferrule 141 protruding from the front end of the guide cylinder 130 is at least 0.3 mm. As shown in FIG. 3, the optical fiber connector plug 100 is in a non-butting state, the front end of the ferrule 141 protrudes from the front end of the guide cylinder 130, and the distance between the front end of the ferrule 141 and the front end of the guide cylinder 130 is greater than or equal to 0.3 mm, for example, it can be between 0.3 mm and 0.9 mm. This arrangement ensures that when the subsequent two optical fiber connector plugs 100 are mated, the two ferrules 141 are mated before the guide cylinder 130.

当需要使用上述实施例一或实施例二提供的光线连接器插头时，一般需要与光纤适配器200配合使用，利用光纤适配器200可以将两个光线连接器插头的插芯141的前端对接。本申请实施例还提供了一种光纤适配器200，用于连接上述光纤连接器插头100。When it is necessary to use the optical fiber connector plug provided in the first or second embodiment above, it generally needs to be used in conjunction with the optical fiber adapter 200, and the front ends of the ferrules 141 of the two optical fiber connector plugs can be connected by the optical fiber adapter 200. The embodiment of the present application also provides an optical fiber adapter 200, which is used to connect the above-mentioned optical fiber connector plug 100.

实施例三Example three

如图5和图6所示，本申请实施例提供的光纤适配器200包括法兰210和插芯对接套管240，其中，法兰210的外形轮廓可以为圆柱形结构，法兰210具有第一端214和第二端224。沿第一端214至第二端224的方向，在法兰210的中部依次设有第一空腔211、套管容纳腔230和第二空腔221，其中，第一空腔211用于容纳一个光纤连接器插头100的插芯组件140(包括插芯141以及框套142)，第一空腔211用于容纳另一个光纤连接器插头100的插芯组件140(包括插芯141以及框套142)，套管容纳腔230用于容纳插芯对接套管240。As shown in Figures 5 and 6, the optical fiber adapter 200 provided by the embodiment of the present application includes a flange 210 and a ferrule butt sleeve 240. The outline of the flange 210 may be a cylindrical structure, and the flange 210 has a first End 214 and second end 224. Along the direction from the first end 214 to the second end 224, a first cavity 211, a sleeve accommodating cavity 230, and a second cavity 221 are sequentially provided in the middle of the flange 210. The first cavity 211 is used to accommodate The ferrule assembly 140 (including the ferrule 141 and the frame sleeve 142) of an optical fiber connector plug 100, and the first cavity 211 is used to accommodate the ferrule assembly 140 (including the ferrule 141 and the frame sleeve) of another optical fiber connector plug 100 142) The sleeve accommodating cavity 230 is used for accommodating the ferrule butting sleeve 240.

第一空腔211的入口形成在法兰211的第一端214，第二空腔221的入口形成在法兰211的第二端224；第一空腔211的出口和第二空腔221的出口分别与套管容纳腔230的两端连通。以垂直于法兰210的中心线的平面为截面，第一空腔211、第二空腔221的截面形状可以为圆柱形、正方形或其他多边形，以与插芯组件140的形状匹配，以便与插芯组件***到第一空腔211或第二空腔221内，以及防止插芯组件140在第一空腔211或第二空腔221内晃动，提高从第一端214***的插芯组件140与从第二端***的另一插芯组件140的对接效果。The inlet of the first cavity 211 is formed at the first end 214 of the flange 211, the inlet of the second cavity 221 is formed at the second end 224 of the flange 211; the outlet of the first cavity 211 and the second cavity 221 The outlets are respectively communicated with two ends of the sleeve accommodating cavity 230. Taking a plane perpendicular to the center line of the flange 210 as a cross-section, the cross-sectional shape of the first cavity 211 and the second cavity 221 can be cylindrical, square or other polygons to match the shape of the ferrule assembly 140 so as to match the shape of the ferrule assembly 140. The ferrule assembly is inserted into the first cavity 211 or the second cavity 221, and the ferrule assembly 140 is prevented from shaking in the first cavity 211 or the second cavity 221, and the ferrule assembly inserted from the first end 214 is improved The docking effect between 140 and another ferrule assembly 140 inserted from the second end.

套管容纳腔230形成在第一空腔211和第二空腔221之间，套管容纳腔230的形状与插芯对接套管220的形状匹配。套管容纳腔230的侧壁与法兰210之间通过凸棱220连接，凸棱220可以为环绕设置在套管容纳腔230的外周面上的环形凸棱，也可以为间隔设置在套管容纳腔230的外周面上的凸块。套管容纳腔230的侧壁、凸棱220和法兰210三者可以一体注塑成型。The sleeve accommodating cavity 230 is formed between the first cavity 211 and the second cavity 221, and the shape of the sleeve accommodating cavity 230 matches the shape of the ferrule mating sleeve 220. The side wall of the casing accommodating cavity 230 and the flange 210 are connected by a rib 220. The rib 220 may be an annular rib surrounding the outer peripheral surface of the casing accommodating cavity 230, or may be arranged at intervals on the casing. A bump on the outer peripheral surface of the accommodating cavity 230. The three side walls of the sleeve accommodating cavity 230, the rib 220 and the flange 210 can be integrally injection molded.

套管容纳腔230的两端各设置有至少一个弹性卡扣231，弹性卡扣231的一端与套管容纳腔230的侧壁连接，另一端可扣合在插芯对接套管240的侧壁和/或端部上，用于对安装在套管容纳腔230内插芯对接套管240进行固定。插芯对接套管240可以为陶瓷套管或青铜套管，在本实施例中插芯对接套管240为陶瓷套管。值得一提的是，还可以通过超声波焊接的方式将插芯对接套管240焊接固定在套管容纳腔230中。At least one elastic buckle 231 is provided at both ends of the sleeve accommodating cavity 230. One end of the elastic buckle 231 is connected to the side wall of the sleeve accommodating cavity 230, and the other end can be buckled on the side wall of the ferrule butting sleeve 240 And/or the end is used to fix the ferrule butting sleeve 240 installed in the sleeve accommodating cavity 230. The ferrule butting sleeve 240 may be a ceramic sleeve or a bronze sleeve. In this embodiment, the ferrule butting sleeve 240 is a ceramic sleeve. It is worth mentioning that the ferrule butting sleeve 240 can also be welded and fixed in the sleeve accommodating cavity 230 by means of ultrasonic welding.

插芯对接套管240插装在套管容纳腔230中，用于使两个插芯141的前端在插芯对接套管240进行对接。插芯对接套管240与套管容纳腔230之间可以为过盈配合，以提高插芯对接套管240在套管容纳腔230内的稳定性。插芯对接套管240的两端一般不伸出套管容纳腔230的两端，即插芯对接套管240的第一端和插芯对接套管240的第二端均位于套管容纳腔230内。需要说明的是，插芯对接套管240的第一端为指向法兰210的第一端214的一端，插芯对接套管240的第二端为指向法兰210的第二端224的一端。The ferrule mating sleeve 240 is inserted into the sleeve accommodating cavity 230 for mating the front ends of the two ferrules 141 on the ferrule mating sleeve 240. The ferrule mating sleeve 240 and the sleeve accommodating cavity 230 may have an interference fit to improve the stability of the ferrule mating sleeve 240 in the sleeve accommodating cavity 230. The two ends of the ferrule butting sleeve 240 generally do not extend out of the two ends of the sleeve accommodating cavity 230, that is, the first end of the ferrule butting sleeve 240 and the second end of the ferrule butting sleeve 240 are both located in the sleeve accommodating cavity. Within 230. It should be noted that the first end of the ferrule mating sleeve 240 is an end pointing to the first end 214 of the flange 210, and the second end of the ferrule mating sleeve 240 is an end pointing to the second end 224 of the flange 210. .

法兰210的第一端214除了设有用于供一个光纤连接器插头100的插芯141***的第一空腔211外，还设有用于供一个光纤连接器插头100的导向筒130***的第一插槽212，第一插槽212位于第一空腔211的***。法兰210的第二端224设有用于供另一个光纤连接器插头100的插芯141***的第二空腔221之外，还设有用于供另一个光纤连接器插头100的导向筒130***的第二插槽222，第二插槽222位于第二空腔221的***。The first end 214 of the flange 210 is not only provided with a first cavity 211 for inserting the ferrule 141 of an optical fiber connector plug 100, but also provided with a first cavity for inserting the guide cylinder 130 of an optical fiber connector plug 100. A slot 212, the first slot 212 is located at the periphery of the first cavity 211. The second end 224 of the flange 210 is provided with a second cavity 221 for inserting the ferrule 141 of another optical fiber connector plug 100, and is also provided with a guide cylinder 130 for inserting another optical fiber connector plug 100. The second slot 222 is located at the periphery of the second cavity 221.

当采用上述光纤适配器200连接两个光纤连接器插头100时，其中一个光纤连接器插头100从法兰210的第一端214***光纤适配器200中，具体地，导向筒130***第一插槽212中、插芯组件140***第一空腔211中；另一个光纤连接器插头100从法兰210的第二端224***光纤适配器200中，具体地，导向筒130***第二插槽222中、插芯组件140***第二空腔221中。因此，当插芯141和导向筒130一起***光纤适配器中时，由于插芯141的前端被配置为凸身出导向筒130的前端，因此当两个插芯141的前端在插芯对接套管240对接时，导向筒130***到第一插槽212或第二插槽222内，示例地，导向筒130可以***到第一插槽212或第二插槽222的槽底面。When the above-mentioned optical fiber adapter 200 is used to connect two optical fiber connector plugs 100, one of the optical fiber connector plugs 100 is inserted into the optical fiber adapter 200 from the first end 214 of the flange 210, specifically, the guide cylinder 130 is inserted into the first slot 212 The middle and ferrule assembly 140 is inserted into the first cavity 211; the other optical fiber connector plug 100 is inserted into the optical fiber adapter 200 from the second end 224 of the flange 210, specifically, the guide cylinder 130 is inserted into the second slot 222, The ferrule assembly 140 is inserted into the second cavity 221. Therefore, when the ferrule 141 and the guide cylinder 130 are inserted into the fiber optic adapter together, since the front end of the ferrule 141 is configured to protrude from the front end of the guide cylinder 130, when the front ends of the two ferrules 141 are connected to the ferrule When 240 is mated, the guide tube 130 is inserted into the first slot 212 or the second slot 222. For example, the guide tube 130 can be inserted into the bottom surface of the first slot 212 or the second slot 222.

具有上述结构的光纤适配器200，利用第一插槽212和第二插槽222可以对导向筒130进行导向，以便于位于导向筒130内的插芯141自第一空腔211或第二空腔221准确***插芯对接套管240内，以实现两个插芯141的前端的端面对接。另外，通过光纤适配器200连接的两个光纤连接器插头的型号可以相同，也可以不同。以图1所示的方位为例，插芯 141内缩在导向筒内，插芯141的端面与导向筒130的内端面之间的距离可以设置为0.8mmˉ1.5mm之间的任意值。0.8mmˉ1.5mm的距离的设置不仅能够保护插芯141，同时也避免了距离过长、弹簧压缩量过大导致的***力过大和操作不便。With the optical fiber adapter 200 having the above structure, the guide barrel 130 can be guided by the first slot 212 and the second slot 222, so that the ferrule 141 located in the guide barrel 130 can pass from the first cavity 211 or the second cavity 221 is accurately inserted into the ferrule mating sleeve 240 to realize the end-to-face connection of the front ends of the two ferrules 141. In addition, the models of the two optical fiber connector plugs connected through the optical fiber adapter 200 may be the same or different. Taking the orientation shown in FIG. 1 as an example, the ferrule 141 is retracted in the guide cylinder, and the distance between the end surface of the ferrule 141 and the inner end surface of the guide cylinder 130 can be set to any value between 0.8 mm ˉ 1.5 mm. The distance of 0.8mmˉ1.5mm can not only protect the ferrule 141, but also avoid the excessive insertion force and inconvenience caused by the excessively long distance and the excessive compression of the spring.

在一种可能的实现方式中，如图6所示，凸棱220位于第一插槽212和第二插槽222之间，且凸棱220的两侧面分别与第一插槽212的槽底面和第二插槽222的槽底面重合；即凸棱220作为第一插槽212和第二插槽222的底壁，凸棱220的两个相对的侧面充当第一插槽212和第二插槽222的内底面，凸棱的宽度大于或等于两个对接的插芯凸伸出导向筒的长度之和。当两个插芯141的前端在插芯对接套管240对接时，导向筒130的前端与凸棱220的侧面相抵。也就是说，凸棱220的作用除了用于连接法兰210和套管容纳腔230的侧壁外，还用于当两个插芯141的前端在插芯对接套管240对接时，导向筒130的前端抵接在凸棱220上，从而使得导向筒130向后退，以保证插芯141的前端凸伸出导向筒130的前端，从而使得两个插芯141的前端在插芯对接套管240实现紧密对接。In a possible implementation, as shown in FIG. 6, the rib 220 is located between the first slot 212 and the second slot 222, and the two sides of the rib 220 are respectively connected to the bottom surface of the first slot 212. It coincides with the bottom surface of the second slot 222; that is, the rib 220 serves as the bottom wall of the first slot 212 and the second slot 222, and the two opposite sides of the rib 220 serve as the first slot 212 and the second slot. On the inner bottom surface of the groove 222, the width of the protruding rib is greater than or equal to the sum of the lengths of the two mating ferrules protruding out of the guide cylinder. When the front ends of the two ferrules 141 are butted on the ferrule mating sleeve 240, the front ends of the guide cylinder 130 abut against the side surface of the rib 220. In other words, the rib 220 is used to connect the flange 210 and the side wall of the sleeve accommodating cavity 230, and is also used to guide the cylinder when the front ends of the two ferrules 141 are butted against the ferrule butting sleeve 240. The front end of 130 abuts on the rib 220, so that the guide cylinder 130 retreats to ensure that the front end of the ferrule 141 protrudes from the front end of the guide cylinder 130, so that the front ends of the two ferrules 141 are connected to the ferrule. 240 to achieve close docking.

当光纤连接器插头100的导向筒130的侧壁具有限位缺口131时，如图7所示，在一种可能的实现方式中，以垂直于法兰210的中心线的平面为截面，第一插槽212和第二插槽212的截面形状均为圆弧形；沿法兰210的圆周方向，第一插槽212的两端之间设有第一定位键217，第二插槽的两端之间设有第二定位键(图7中未示出)，第一定位键217和第二定位键均沿法兰210的轴线延伸。示例性地，形成在法兰210的第一插槽212和第二插槽222均为未封闭的圆环形槽，在圆形槽的圆周方向上的两端之间由第一定位键217或第二定位键隔开，从图7中法兰210的第一端214方向看，第一插槽212为近似为C形的槽，同样，第二插槽222与第一插槽212相同，从法兰210的第二端224方向看，也近似为C形的槽。When the side wall of the guide cylinder 130 of the optical fiber connector plug 100 has a limiting notch 131, as shown in FIG. 7, in a possible implementation manner, a plane perpendicular to the center line of the flange 210 is taken as the cross section. The cross-sectional shapes of the first slot 212 and the second slot 212 are both arc-shaped; along the circumferential direction of the flange 210, a first positioning key 217 is provided between the two ends of the first slot 212, and the second slot A second positioning key (not shown in FIG. 7) is provided between the two ends. Both the first positioning key 217 and the second positioning key extend along the axis of the flange 210. Exemplarily, the first slot 212 and the second slot 222 formed in the flange 210 are both unclosed circular annular grooves, and a first positioning key 217 is provided between the two ends of the circular groove in the circumferential direction. Or the second positioning key is separated. Viewed from the direction of the first end 214 of the flange 210 in FIG. 7, the first slot 212 is an approximately C-shaped slot. Similarly, the second slot 222 is the same as the first slot 212 When viewed from the direction of the second end 224 of the flange 210, it is also approximately a C-shaped groove.

当需要将导向筒130***第一插槽212内时，导向筒130的限位缺口131对准第一定位键217，导向筒130的筒壁对准第一插槽212的槽口，当导向筒130***第一插槽212内后，导向筒130与第一插槽212之间无缝连接，从而可以防止导向筒130转动；此外，还可以实现光纤连接器插头的盲插、防止插反插错等误操作。When the guide cylinder 130 needs to be inserted into the first slot 212, the limit notch 131 of the guide cylinder 130 is aligned with the first positioning key 217, and the cylinder wall of the guide cylinder 130 is aligned with the notch of the first slot 212. After the barrel 130 is inserted into the first slot 212, the guide barrel 130 and the first slot 212 are seamlessly connected, so that the guide barrel 130 can be prevented from rotating; in addition, the blind insertion of the optical fiber connector plug can be realized to prevent reverse insertion. Misoperation such as incorrect insertion.

如图6和图7所示，在一种可能的实现方式中，沿法兰210的圆周方向，第一定位键217和第二定位键之间错位设置，且相对法兰210的中心对称。示例性地，当位于法兰210的第一端214的第一定位键217位于上部时，位于法兰210的第二端224的第二定位键则位于下部，或者说，第一定位键217和第二定位键相对法兰210中心对称。如此设计，当利用本实施例提供的光纤适配器200实现对接端面为斜面的两个插芯141对接时，使得两个插芯的前端端面可以实现较好的对接，从而可以使得发射光纤输出的光信号能够最大限度地耦合到接收光纤中，提高了光信号的耦合效率。As shown in FIGS. 6 and 7, in a possible implementation manner, along the circumferential direction of the flange 210, the first positioning key 217 and the second positioning key are arranged in a staggered manner, and are symmetrical with respect to the center of the flange 210. Exemplarily, when the first positioning key 217 at the first end 214 of the flange 210 is located at the upper part, the second positioning key at the second end 224 of the flange 210 is located at the lower part, or in other words, the first positioning key 217 The second positioning key is symmetrical with respect to the center of the flange 210. With this design, when two ferrules 141 with a beveled end face are mated using the optical fiber adapter 200 provided in this embodiment, the front end faces of the two ferrules can achieve better mating, so that the light output from the fiber can be emitted. The signal can be coupled to the receiving fiber to the maximum, which improves the coupling efficiency of the optical signal.

在一种可能的实现方式中，如图5和图7所示，靠近法兰210的第一端214的法兰的外周面设有两个第一螺旋锁紧槽216，每个第一螺旋锁紧槽216的首端与法兰210的第一端214相通，每个第一螺旋锁紧槽216的尾端用于卡合光纤连接器插头上的锁紧凸起151或防尘帽170上的锁紧凸起151；靠近法兰210的第二端224的法兰的外周面设有两个第二螺旋锁紧槽226，每个第二螺旋锁紧槽226的首端与法兰210的第二端224相通，每个第二螺旋锁紧槽226的尾端用于卡合光纤连接器插头上的锁紧凸起151或防尘帽170上的锁紧凸起 151。In a possible implementation, as shown in FIGS. 5 and 7, the outer peripheral surface of the flange close to the first end 214 of the flange 210 is provided with two first spiral locking grooves 216, and each first spiral The head end of the locking groove 216 is communicated with the first end 214 of the flange 210, and the tail end of each first screw locking groove 216 is used to engage the locking protrusion 151 or the dust cap 170 on the optical fiber connector plug On the locking protrusion 151; the outer peripheral surface of the flange near the second end 224 of the flange 210 is provided with two second spiral locking grooves 226, the first end of each second spiral locking groove 226 and the flange The second ends 224 of the 210 are communicated, and the tail end of each second spiral locking groove 226 is used to engage the locking protrusion 151 on the optical fiber connector plug or the locking protrusion 151 on the dust cap 170.

当光纤连接器插头从法兰210的第一端214***光纤适配器中时，外套筒150的锁紧凸起151151从第一螺旋锁紧槽216的首端滑入螺旋锁紧槽216，且随着光纤连接器插头逐渐***到光纤适配器中，外套筒150可以旋转，使得锁紧凸起151151在第一螺旋锁紧槽216滑动，直至与第一螺旋锁紧槽216的尾端卡合。When the optical fiber connector plug is inserted into the optical fiber adapter from the first end 214 of the flange 210, the locking protrusion 151151 of the outer sleeve 150 slides into the spiral locking groove 216 from the first end of the first spiral locking groove 216, and As the optical fiber connector plug is gradually inserted into the optical fiber adapter, the outer sleeve 150 can be rotated so that the locking protrusion 151151 slides in the first spiral locking groove 216 until it engages with the end of the first spiral locking groove 216 .

当光纤适配器未使用时，在一种可能的实现方式中，如图5所示，光纤适配器还包括两个防尘帽300，每个防尘帽300的内侧面设置有两个锁紧凸起151(图5中未示出)，两个锁紧凸起151分别与对应的两个螺旋锁紧槽卡合。示例性地，法兰210的第一端214连接有一个防尘帽300，防尘帽300上的锁紧凸起151与法兰210上的第一螺旋锁紧槽216卡合。When the fiber optic adapter is not in use, in a possible implementation, as shown in FIG. 5, the fiber optic adapter further includes two dust caps 300, and the inner side of each dust cap 300 is provided with two locking protrusions 151 (not shown in FIG. 5), two locking protrusions 151 are respectively engaged with two corresponding spiral locking grooves. Illustratively, a dust cap 300 is connected to the first end 214 of the flange 210, and the locking protrusion 151 on the dust cap 300 is engaged with the first spiral locking groove 216 on the flange 210.

如图5和图6所示，法兰210的外周面还设有第一轴肩215和第二轴肩225，用于限制防尘帽300或外套筒150套入深度，以免压损插芯141。第一轴肩215和第二轴肩225上均设有“0”“1”。法兰210的外周面还设有“0”“1”标识，当光纤连接器插头100或防尘帽300安装在光纤适配器200上时，外套筒150或防尘帽300上的箭头标识指向“0”时，表示两者处于松开状态；当外套筒150或防尘帽300上的箭头标识指向“1”时，表示两者处于锁紧状态。As shown in Figures 5 and 6, the outer circumferential surface of the flange 210 is also provided with a first shoulder 215 and a second shoulder 225, which are used to limit the insertion depth of the dust cap 300 or the outer sleeve 150 to avoid pressure loss.芯141. Both the first shoulder 215 and the second shoulder 225 are provided with "0" and "1". The outer peripheral surface of the flange 210 is also provided with "0" and "1" marks. When the optical fiber connector plug 100 or the dust cap 300 is installed on the optical fiber adapter 200, the arrow mark on the outer sleeve 150 or the dust cap 300 points to When "0", it means that the two are in a loose state; when the arrow mark on the outer sleeve 150 or the dust cap 300 points to "1", it means that the two are in a locked state.

值得一提的是，为了满足IP68防护等级，在法兰210的外周面设有至少两个密封圈槽，示例性地，如图5所示，法兰210的外周面设有至少两个密封圈槽：靠近第一端214的第一密封圈槽213，靠近第二端面224的第二第一密封圈槽223，在第一密封圈槽213和第一密封圈槽223各设有一个O型密封圈。利用O型密封圈可以提高防尘帽300与光纤适配器200之间的密封效果，以及光纤连接器插头100与光纤适配器200密封效果，满足IP68防护等级，从而满足室外环境的使用要求。It is worth mentioning that in order to meet the IP68 protection level, at least two sealing ring grooves are provided on the outer circumferential surface of the flange 210. Illustratively, as shown in FIG. 5, the outer circumferential surface of the flange 210 is provided with at least two seals. Ring groove: the first sealing ring groove 213 near the first end 214, the second first sealing ring groove 223 near the second end surface 224, each of the first sealing ring groove 213 and the first sealing ring groove 223 is provided with an O Type sealing ring. The use of the O-shaped sealing ring can improve the sealing effect between the dust cap 300 and the optical fiber adapter 200, and the sealing effect between the optical fiber connector plug 100 and the optical fiber adapter 200, and meet the IP68 protection level, thereby meeting the use requirements of the outdoor environment.

图8为本申请实施例提供的光纤连接器的结构示意图，如图8所示，本申请实施例还提供了一种光纤连接器，该光纤连接器包括两个上述实施例提供的光纤连接器插头100，以及用于一个用于使两个光纤连接器插头100的插芯端面对接的第二方面提供的光纤适配器200。FIG. 8 is a schematic structural diagram of an optical fiber connector provided by an embodiment of the application. As shown in FIG. 8, an embodiment of the present application also provides an optical fiber connector. The optical fiber connector includes two optical fiber connectors provided in the foregoing embodiments. The plug 100 and the optical fiber adapter 200 provided in the second aspect for connecting the ferrule ends of the two optical fiber connector plugs 100 face-to-face.

两个光纤连接器插头100可以均为导向筒130可相对连接件120滑动的光纤连接器插头100，也可以为导向筒130相对连接件120固定的光纤连接器插头100。下面以两个光纤连接器插头100均为导向筒130可相对连接件120滑动的光纤连接器插头100为例进行描述。The two optical fiber connector plugs 100 may both be optical fiber connector plugs 100 in which the guide cylinder 130 can slide relative to the connector 120, or may be optical fiber connector plugs 100 in which the guide cylinder 130 is fixed relative to the connector 120. In the following, description will be made by taking an example in which the two optical fiber connector plugs 100 are both optical fiber connector plugs 100 in which the guide cylinder 130 can slide relative to the connector 120.

图9为图8中光纤连接器的剖视图，图10为图9中A处的放大示意图。如图9和图10所示，当将光纤连接器插头100从法兰210的第一端214***时，首先使导向筒130对准第一插槽212，导向筒130的限位缺口131对准第一定位键217，插芯组件140对准第一空腔211，然后，***光纤适配器200中，当导向筒130的前端抵接在第一插槽212的槽底面时，导向筒130在***力的作用下将向后退，以保证插芯141的前端凸伸出导向筒130的前端，从而使得两个插芯141的前端在插芯对接套管240实现紧密对接。因此，采用本申请实施例提供的光纤连接器，能够使得发射光纤输出的光信号能够最大限度地耦合到接收光纤中，提高了光信号的耦合效率。FIG. 9 is a cross-sectional view of the optical fiber connector in FIG. 8, and FIG. 10 is an enlarged schematic view of A in FIG. 9. As shown in Figures 9 and 10, when inserting the optical fiber connector plug 100 from the first end 214 of the flange 210, first align the guide tube 130 with the first slot 212, and the limit notch 131 of the guide tube 130 is aligned Align the first positioning key 217, the ferrule assembly 140 is aligned with the first cavity 211, and then inserted into the optical fiber adapter 200. When the front end of the guide cylinder 130 abuts against the bottom surface of the first slot 212, the guide cylinder 130 is positioned The insertion force will move backwards to ensure that the front end of the ferrule 141 protrudes from the front end of the guide barrel 130, so that the front ends of the two ferrules 141 are tightly butted in the ferrule butting sleeve 240. Therefore, the use of the optical fiber connector provided in the embodiment of the present application can enable the optical signal output by the transmitting optical fiber to be coupled to the receiving optical fiber to the maximum extent, thereby improving the coupling efficiency of the optical signal.

可以理解的是，在非对接状态时，导向筒130的前端与插芯141之间的距离小于导向筒130能够后退的距离，以保证两个插芯141在光纤适配器200内对接时，插芯141的前端凸出于导向筒130的前端，实现插两个插芯141的紧密对接。It can be understood that in the non-docking state, the distance between the front end of the guide cylinder 130 and the ferrule 141 is less than the distance that the guide cylinder 130 can retreat, so as to ensure that the two ferrules 141 are mated in the optical fiber adapter 200. The front end of the 141 protrudes from the front end of the guide cylinder 130, so that the two ferrules 141 can be inserted into close butt joints.

在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “exemplary embodiments”, “examples”, “specific examples”, or “some examples”, etc. means to combine the embodiments The specific features, structures, materials, or characteristics described by the examples are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. Scope.

Claims

一种光纤连接器插头，其特征在于，包括光纤，与所述光纤固定连接的插芯，套设于所述光纤上并与所述插芯的后端固定连接的连接件，以及套设在所述连接件上并环绕所述插芯设置的导向筒；An optical fiber connector plug, characterized in that it comprises an optical fiber, a ferrule fixedly connected to the optical fiber, a connector sleeved on the optical fiber and fixedly connected to the rear end of the ferrule, and sleeved in A guide cylinder arranged on the connecting piece and surrounding the ferrule;

当两个所述光纤连接器插头***光纤适配器中以使两个所述插芯的前端处于对接状态时，所述插芯的前端凸伸出所述导向筒的前端。When the two optical fiber connector plugs are inserted into the optical fiber adapter so that the front ends of the two ferrules are in a butting state, the front ends of the ferrules protrude from the front end of the guide cylinder.
根据权利要求1所述的光纤连接器插头，其特征在于，当处于非对接状态时，所述导向筒与所述连接件固定连接，所述插芯的前端凸伸出所述导向筒的前端。The optical fiber connector plug according to claim 1, wherein when in a non-butting state, the guide tube is fixedly connected to the connector, and the front end of the ferrule protrudes from the front end of the guide tube .
根据权利要求2所述的光纤连接器插头，其特征在于，所述插芯的前端凸伸出所述导向筒的前端的长度至少为0.3mm。The optical fiber connector plug according to claim 2, wherein the length of the front end of the ferrule protruding from the front end of the guide cylinder is at least 0.3 mm.
根据权利要求1所述的光纤连接器插头，其特征在于，当处于非对接状态时，所述导向筒与所述连接件滑动连接，所述导向筒的后端设置有使所述导向筒的前端凸出于所述插芯的前端的弹性件。The optical fiber connector plug according to claim 1, wherein when in a non-docking state, the guide cylinder is slidably connected to the connector, and the rear end of the guide cylinder is provided with a The front end protrudes from the elastic member at the front end of the ferrule.
根据权利要求4所述的光纤连接器插头，其特征在于，所述连接件的外周面设置有与所述连接件同轴线的环形凸起，所述导向筒的后端位于所述环形凸起和所述插芯之间，所述弹性件的两端分别与所述导向筒的后端和所述环形凸起相抵。The optical fiber connector plug according to claim 4, wherein the outer peripheral surface of the connector is provided with an annular protrusion coaxial with the connector, and the rear end of the guide cylinder is located on the annular protrusion. The two ends of the elastic member respectively abut against the rear end of the guide cylinder and the annular protrusion between the upper part and the ferrule.
根据权利要求1-4任一项所述的光纤连接器插头，其特征在于，所述插芯的前端的端面为相对所述插芯的中心线倾斜的斜面。The optical fiber connector plug according to any one of claims 1 to 4, wherein the end surface of the front end of the ferrule is an inclined surface inclined with respect to the center line of the ferrule.
根据权利要求1所述的光纤连接器插头，其特征在于，所述导向筒的筒壁设有限位缺口，所述限位缺口自所述导向筒的前端向所述导向筒的后端延伸。The optical fiber connector plug according to claim 1, wherein the barrel wall of the guide barrel is provided with a limiting notch, and the limiting notch extends from the front end of the guide barrel to the rear end of the guide barrel.
根据权利要求1所述的光纤连接器插头，其特征在于，所述光纤连接器插头还包括套设于所述连接件和所述导向筒上的外套筒，且所述外套筒可绕所述导向筒的轴线旋转。The optical fiber connector plug according to claim 1, wherein the optical fiber connector plug further comprises an outer sleeve sleeved on the connector and the guide cylinder, and the outer sleeve can be wound around The axis of the guide cylinder rotates.
根据权利要求8所述的光纤连接器插头，其特征在于，所述外套筒的内侧面设置有两个锁紧凸起，两个所述锁紧凸起相对所述外套筒的中心线对称设置，用于与光纤适配器的外周面的螺旋锁紧槽卡合。The optical fiber connector plug according to claim 8, wherein the inner side of the outer sleeve is provided with two locking protrusions, and the two locking protrusions are opposite to the center line of the outer sleeve. The symmetrical arrangement is used to engage with the spiral locking groove on the outer peripheral surface of the fiber optic adapter.
根据权利要求9所述的光纤连接器插头，其特征在于，所述光纤连接器插头还包括可套设于所述导向筒与外套筒之间的防尘帽，所述防尘帽通过绳带与所述连接件连接。The optical fiber connector plug according to claim 9, wherein the optical fiber connector plug further comprises a dust cap that can be sleeved between the guide tube and the outer sleeve, and the dust cap is passed through a rope. The belt is connected with the connecting piece.
根据权利要求10所述的光纤连接器插头，其特征在于，所述防尘帽内部设有用于容纳所述插芯和所述导向筒的容纳腔；The optical fiber connector plug according to claim 10, wherein a receiving cavity for accommodating the ferrule and the guide cylinder is provided inside the dust cap;

所述防尘帽的外周面设有两个螺旋锁紧槽，两个所述螺旋锁紧槽相对所述防尘帽的中心线对称设置，所述螺旋锁紧槽与所述外套筒内侧面的锁紧凸起卡合。The outer peripheral surface of the dust cap is provided with two spiral locking grooves, the two spiral locking grooves are symmetrically arranged with respect to the center line of the dust cap, and the spiral locking groove is connected to the inner sleeve of the outer sleeve. The locking protrusions on the side engage.
根据权利要求1所述的光纤连接器插头，其特征在于，所述光纤连接器插头还包括套设于所述光纤上的热缩套管，以及套设于所述热缩套管和所述连接件上的尾套。The optical fiber connector plug according to claim 1, wherein the optical fiber connector plug further comprises a heat shrinkable tube sleeved on the optical fiber, and a heat shrinkable sleeve sleeved on the heat shrinkable sleeve and the The tail sleeve on the connector.
根据权利要求12所述的光纤连接器插头，其特征在于，所述连接件的外周面设有卡槽，所述连接件与所述尾套通过设于所述卡槽中的卡环固定连接。The optical fiber connector plug according to claim 12, wherein the outer peripheral surface of the connector is provided with a slot, and the connector and the tail sleeve are fixedly connected by a snap ring provided in the slot .
一种光纤适配器，其特征在于，包括法兰和插芯对接套管，其中：An optical fiber adapter, which is characterized by comprising a flange and a ferrule butting sleeve, wherein:

所述法兰的第一端设有用于供第一光纤连接器插头的插芯***的第一空腔，以及用于供所述第一光纤连接器插头的导向筒***的第一插槽；The first end of the flange is provided with a first cavity for inserting the ferrule of the first optical fiber connector plug, and a first slot for inserting the guide barrel of the first optical fiber connector plug;

所述法兰的第二端设有用于供第二光纤连接器插头的插芯***的第二空腔，以及用于供所述第二光纤连接器插头的导向筒***的第二插槽；The second end of the flange is provided with a second cavity for inserting the ferrule of the second optical fiber connector plug, and a second slot for inserting the guide barrel of the second optical fiber connector plug;

所述法兰还设有位于所述第一空腔和所述第二空腔之间的套管容纳腔，所述套管容纳腔的两端分别与所述第一空腔和所述第二空腔连通；The flange is also provided with a sleeve accommodating cavity located between the first cavity and the second cavity, and two ends of the sleeve accommodating cavity are respectively connected to the first cavity and the second cavity. The two cavities are connected;

所述插芯对接套管安装在所述套管容纳腔中，用于使两个所述插芯的端面在所述插芯对接套管内对接。The ferrule butting sleeve is installed in the sleeve accommodating cavity, and is used for butting the end faces of the two ferrules in the ferrule butting sleeve.
根据权利要求14所述的光纤适配器，其特征在于，所述套管容纳腔的两端均设置有弹性卡扣，所述弹性卡扣用于将所述插芯对接套管卡合固定在所述套管容纳腔中。The optical fiber adapter according to claim 14, wherein both ends of the sleeve accommodating cavity are provided with elastic buckles, and the elastic buckles are used to buckle and fix the ferrule to the sleeve. The sleeve accommodating cavity.
根据权利要求14或15所述的光纤适配器，其特征在于，所述套管容纳腔的外侧壁设有凸棱，所述凸棱与所述法兰连接。The optical fiber adapter according to claim 14 or 15, wherein the outer side wall of the sleeve containing cavity is provided with a rib, and the rib is connected with the flange.
根据权利要求16所述的光纤适配器，其特征在于，所述凸棱为环绕所述套管容纳腔的外侧壁设置的环形凸棱。The fiber optic adapter according to claim 16, wherein the rib is an annular rib arranged around the outer side wall of the sleeve containing cavity.
根据权利要求16所述的光纤适配器，其特征在于，所述凸棱位于所述第一插槽和所述第二插槽之间，且所述凸棱的两侧面分别与所述第一插槽的槽底面和所述第二插槽的槽底面重合。The fiber optic adapter according to claim 16, wherein the rib is located between the first slot and the second slot, and two side surfaces of the rib are connected to the first slot respectively. The groove bottom surface of the groove coincides with the groove bottom surface of the second slot.
根据权利要求18所述的光纤适配器，其特征在于，沿所述法兰的轴向，所述凸棱的宽度大于或等于两个对接的所述插芯凸伸出导向筒的长度之和。The optical fiber adapter according to claim 18, wherein, along the axial direction of the flange, the width of the rib is greater than or equal to the sum of the lengths of the two butted ferrules protruding from the guide cylinder.
根据权利要求14所述的光纤适配器，其特征在于，以垂直于所述法兰的中心线的平面为截面，所述第一插槽和所述第二插槽的截面形状均为圆弧形；The optical fiber adapter according to claim 14, wherein the cross-sectional shape of the first slot and the second slot are both circular arcs by taking a plane perpendicular to the center line of the flange as a cross section. ；

沿所述法兰的圆周方向，所述第一插槽的两端之间设有第一定位键，所述第二插槽的两端之间设有第二定位键，所述第一定位键和所述第二定位键均沿所述法兰的轴线延伸。Along the circumferential direction of the flange, a first positioning key is provided between the two ends of the first slot, and a second positioning key is provided between the two ends of the second slot. The first positioning Both the key and the second positioning key extend along the axis of the flange.
根据权利要求20所述的光纤适配器，其特征在于，所述第一定位键和所述第二定位键之间错位设置，且所述第一定位键和所述第二定位键相对法兰的中心对称。The fiber optic adapter according to claim 20, wherein the first positioning key and the second positioning key are arranged in a staggered manner, and the first positioning key and the second positioning key are opposite to the flange Centrosymmetric.
根据权利要求14所述的光纤适配器，其特征在于，靠近所述法兰的第一端的所述法兰的外周面设有两个螺旋锁紧槽，每个所述螺旋锁紧槽的首端与所述法兰的第一端相通，每个所述螺旋锁紧槽的尾端用于卡合光纤连接器插头上的锁紧凸起；The optical fiber adapter according to claim 14, wherein the outer peripheral surface of the flange near the first end of the flange is provided with two spiral locking grooves, and the first end of each spiral locking groove The end communicates with the first end of the flange, and the tail end of each spiral locking groove is used to engage the locking protrusion on the optical fiber connector plug;

靠近所述法兰的第二端的所述法兰的外周面设有两个螺旋锁紧槽，每个所述螺旋锁紧槽的首端与所述法兰的第二端相通，每个所述螺旋锁紧槽的尾端用于卡合光纤连接器插头上的锁紧凸起。The outer peripheral surface of the flange close to the second end of the flange is provided with two spiral locking grooves, and the head end of each spiral locking groove communicates with the second end of the flange, and each The tail end of the spiral locking groove is used to engage the locking protrusion on the optical fiber connector plug.
根据权利要求22所述的光纤适配器，其特征在于，所述光纤适配器还包括两个防尘帽，每个所述防尘帽的内侧面设置有两个锁紧凸起，两个所述锁紧凸起分别与两个所述螺旋锁紧槽卡合。The fiber optic adapter according to claim 22, wherein the fiber optic adapter further comprises two dust caps, and two locking protrusions are provided on the inner side of each dust cap, and the two locks The tightening protrusions are respectively engaged with the two spiral locking grooves.
一种光纤连接器，其特征在于，包括：两个如权利要求1-13任一项所述的光纤连接器插头，以及用于使两个所述光纤连接器插头的插芯端面对接的如权利要求14-23任一项所述的光纤适配器。An optical fiber connector, characterized by comprising: two optical fiber connector plugs according to any one of claims 1-13, and a plug for connecting the ferrule ends of the two optical fiber connector plugs. The fiber optic adapter of any one of claims 14-23.