CN103033890A - Bending type movable optical fiber connector - Google Patents

Abstract

Translated fromChinese

本发明涉及光连接器领域，尤其是涉及一种弯式活动光纤连接器。该弯式活动光纤连接器包括壳体以及装配在壳体中的光接触件，所述壳体的后端固定装配有限位座以及刚性的引线套，引线套具有引线孔，光接触件连接有光缆，光缆穿过所述引线孔后出线，所述引线套向光缆的出线方向弯折并使得引线孔的出口朝向光缆的出线方向，引线孔的孔壁上具有弧形的支撑面，在该支撑面的支撑作用下，光缆在受到出线方向上的拉力时的弯折半径不小于其允许折弯半径；该连接器一方面杜绝了引线套切割光缆的问题发生，另一方面也从根本上杜绝了光缆被折坏的问题的发生，由此可见，本发明的弯式活动光纤连接器解决了现有的弯式光连接器的引线套易损坏光缆的问题。

The invention relates to the field of optical connectors, in particular to a curved movable optical fiber connector. The curved movable optical fiber connector includes a housing and an optical contact piece assembled in the housing. The rear end of the housing is fixedly equipped with a limited seat and a rigid lead sleeve. The lead sleeve has a lead hole, and the optical contact is connected to a Optical cable, the optical cable goes out after passing through the lead hole, the lead sleeve is bent toward the outgoing direction of the optical cable and makes the outlet of the lead hole face the outgoing direction of the optical cable, and the hole wall of the lead hole has an arc-shaped support surface. Under the support of the supporting surface, the bending radius of the optical cable is not less than the allowable bending radius when it is pulled in the direction of the outgoing line; on the one hand, this connector eliminates the problem of cutting the optical cable by the lead sleeve, and on the other hand, fundamentally The occurrence of the problem that the optical cable is broken is eliminated. It can be seen that the curved movable optical fiber connector of the present invention solves the problem that the lead sleeve of the existing curved optical connector is easy to damage the optical cable.

Description

Translated fromChinese

一种弯式活动光纤连接器A curved active optical fiber connector

技术领域technical field

本发明涉及光连接器领域，尤其是涉及一种弯式活动光纤连接器。The invention relates to the field of optical connectors, in particular to a curved movable optical fiber connector.

背景技术Background technique

活动光纤连接器是光连接器中较为常见的一种，此类光纤连接器在使用时，为了布线方便的需要，通常需要将从其尾部的光缆折弯，然而光纤对折弯半径具有严格的要求，因此目前的做法是在光连接器壳体的尾部设置有相应的保护附件，如市场上较为常见的弯式LC光纤连接器，见图1-2，该类光纤连接器是通过在其尾部固定装配限位座101、引线套102和弯式护套103的方式来保护尾部光纤104，其中，所述限位座101与光纤连接器壳体固定连接在一起且其后端具有套筒部，引线套102插装在限位座的套筒部中并与限位座101固定压接在一起，弯式护套103则套在引线套102的尾部，上述结构在一定程度上缓解了光纤因弯曲过度而损坏的问题，但是，由于所述的引线套均是直筒型的金属套，而弯式护套一般为柔软的橡胶套，光缆跳线往往是需要在其出线方向上具有一定的抗拉力的，当光缆在其折弯方向上受到较大的拉力F时，光缆及弯式护套均从引线套的尾部处发生弯折，此时，引线套的末端形成切割光缆及弯式护套的刀刃结构，这将直接导致光缆损耗的增大，甚至折断光缆。Active optical fiber connector is a common type of optical connector. When this type of optical fiber connector is used, for the convenience of wiring, it is usually necessary to bend the optical cable from its tail. However, the optical fiber has strict requirements on the bending radius. , so the current practice is to set corresponding protective accessories at the tail of the optical connector housing, such as the more common curved LC fiber optic connector in the market, see Figure 1-2, this type of fiber optic connector is The tailoptical fiber 104 is protected by fixedly assembling thelimit seat 101, thelead sleeve 102 and thebent sheath 103, wherein thelimit seat 101 is fixedly connected with the optical fiber connector housing and has a sleeve portion at its rear end , thelead sleeve 102 is inserted into the sleeve part of the limit seat and fixedly crimped with thelimit seat 101, and thecurved sheath 103 is set on the tail of thelead sleeve 102. The above structure alleviates the optical fiber to a certain extent. The problem of damage due to excessive bending, however, since the above-mentioned lead wire sleeves are all straight metal sleeves, and the curved sheath is generally a soft rubber sleeve, the optical cable jumper often needs to have a certain degree of Tensile resistance, when the optical cable is subjected to a large tensile force F in its bending direction, both the optical cable and the curved sheath are bent from the tail of the lead sleeve. At this time, the end of the lead sleeve forms a cutting cable and bend The blade structure of the type sheath will directly lead to an increase in the loss of the optical cable, or even break the optical cable.

发明内容Contents of the invention

本发明的目的在于提供一种弯式活动光纤连接器，以解决现有的弯式光连接器的引线套易损坏光缆的问题。The object of the present invention is to provide a curved movable optical fiber connector to solve the problem that the lead sleeve of the existing curved optical connector is easy to damage the optical cable.

为了解决上述问题，本发明的弯式活动光纤连接器采用以下技术方案：一种弯式活动光纤连接器，该连接器以前端为插接端，包括壳体以及装配在壳体中的光接触件，所述壳体的后端固定装配有限位座以及刚性的引线套，引线套具有引线孔，光接触件连接有光缆，光缆穿过所述引线孔后出线，所述引线套向光缆的出线方向弯折并使得引线孔的出口朝向光缆的出线方向，引线孔的孔壁上具有弧形的支撑面，在该支撑面的支撑作用下，光缆在受到出线方向上的拉力时的弯折半径不小于其允许折弯半径。In order to solve the above problems, the bent active optical fiber connector of the present invention adopts the following technical solutions: a bent active optical fiber connector, the connector uses the front end as the insertion end, includes a housing and an optical contact assembled in the housing The rear end of the housing is fixedly equipped with a limited seat and a rigid lead sleeve. The lead sleeve has a lead hole. The optical contact is connected to an optical cable. The outlet direction is bent so that the outlet of the lead hole faces the outlet direction of the cable. The hole wall of the lead hole has an arc-shaped support surface. Under the support of the support surface, the bending of the cable when it is pulled in the direction of the cable The radius is not less than its allowable bending radius.

所述引线孔的孔壁在光缆的径向上与光缆限位配合。The hole wall of the lead-through hole is limitedly fitted with the optical cable in the radial direction of the optical cable.

引线套的外部套装有弯式护套。The outer casing of the lead wire sleeve has a bent sheath.

由于本发明的弯式活动光纤连接器的引线套向光缆的出线方向弯折并使得引线孔的出口朝向光缆的出线方向，同时引线孔的孔壁上具有弧形的支撑面，并且在该支撑面的支撑作用下，光缆在受到出线方向上的拉力时的弯折半径不小于其允许折弯半径，因此，在使用时，引导孔的出口方向与光缆的出线方向相同，从而杜绝了引线套切割光缆的问题发生，另外，由于采用弧面硬支撑的方式来限定光缆的弯折半径，因此也从根本上杜绝了光缆被折坏的问题的发生，由此可见，本发明的弯式活动光纤连接器解决了现有的弯式光连接器的引线套易损坏光缆的问题。Because the lead sleeve of the curved movable optical fiber connector of the present invention is bent toward the outgoing line direction of the optical cable and makes the outlet of the lead hole face the outgoing line direction of the optical cable, the hole wall of the lead hole has an arc-shaped support surface at the same time, and on the support Under the support of the surface, the bending radius of the optical cable is not less than its allowable bending radius when it is pulled in the direction of the cable outlet. Therefore, when in use, the outlet direction of the guide hole is the same as the outlet direction of the cable, thereby eliminating the need for wire sleeves. The problem of cutting the optical cable occurs. In addition, since the bending radius of the optical cable is limited by the hard support of the arc surface, the problem of the optical cable being broken is fundamentally eliminated. It can be seen that the bending activity of the present invention The optical fiber connector solves the problem that the lead sleeve of the existing bent optical connector is easy to damage the optical cable.

附图说明Description of drawings

图1是弯式LC光纤连接器的结构示意图；Figure 1 is a schematic structural diagram of a curved LC fiber optic connector;

图2是图1中的光纤连接器在光缆受到出线方向拉力时的示意图；Fig. 2 is a schematic diagram of the optical fiber connector in Fig. 1 when the optical cable is pulled in the outgoing direction;

图3是本发明的弯式活动光纤连接器的实施例1的结构示意图；Fig. 3 is a schematic structural view of Embodiment 1 of the curved movable optical fiber connector of the present invention;

图4是本发明的弯式活动光纤连接器的实施例1在光缆受到出线方向拉力时的示意图。Fig. 4 is a schematic diagram of Embodiment 1 of the curved movable optical fiber connector of the present invention when the optical cable is pulled in the outgoing direction.

具体实施方式Detailed ways

本发明的弯式活动光纤连接器的实施例1，如图3-4所示，该连接器以前端为插接端，包括壳体11，壳体11中装配有可前后活动的光适配器12，光适配器中设有光接触件（图中未显示），光接触件沿前后方向延伸并连接有光缆13，另外，壳体11的后端固定装配有限位座14以及刚性的引线套15，本实施例中，限位座14直接固定在壳体11上，引线套15采用不锈钢材料制成并且通过压接的方式与限位座14固定在一起，引线套15中具有引线孔，本实施例中，引线孔的出口与光接触件的中心线之间具有90度的夹角，光缆13穿过所述引线孔后出线，引线套15向光缆13的出线方向弯折，引线孔的孔壁上具有弧形的支撑面16，在该支撑面16的支撑作用下，光缆13在受到出线方向上的拉力时的弯折半径不小于其允许折弯半径，在本实施例中，引线孔为弧形孔并且引线孔的孔壁在光缆的径向上与光缆13限位配合，支撑面16由引导孔的相应位置处的孔壁直接构成；引线套15的外部套装有弯式护套17，弯式护套17用于保护引线套15。Embodiment 1 of the curved movable optical fiber connector of the present invention, as shown in Figures 3-4, the connector uses the front end as the plug-in end, and includes ahousing 11, which is equipped with anoptical adapter 12 that can move back and forth , the optical adapter is provided with an optical contact (not shown in the figure), and the optical contact extends along the front and rear directions and is connected with anoptical cable 13. In addition, the rear end of thehousing 11 is fixedly equipped with alimited seat 14 and arigid lead sleeve 15, In this embodiment, thelimit seat 14 is directly fixed on thehousing 11, thelead sleeve 15 is made of stainless steel and fixed together with thelimit seat 14 by crimping, and thelead sleeve 15 has a lead hole. In the example, there is an included angle of 90 degrees between the outlet of the lead hole and the center line of the optical contact, and theoptical cable 13 goes out after passing through the lead hole, and thelead sleeve 15 is bent toward the outlet direction of theoptical cable 13, and the hole of the lead hole There is an arc-shaped support surface 16 on the wall. Under the support of thesupport surface 16, the bending radius of theoptical cable 13 is not less than the allowable bending radius when it is subjected to the pulling force in the outgoing line direction. In this embodiment, the lead hole It is an arc-shaped hole and the hole wall of the lead hole is limited in the radial direction of the optical cable with theoptical cable 13. The supportingsurface 16 is directly formed by the hole wall at the corresponding position of the guide hole; the outer part of thelead sleeve 15 is covered with acurved sheath 17 , Thecurved sheath 17 is used to protect thelead wire sheath 15 .

该弯式活动光纤连接器在使用的过程中，当受到光缆出线方向的拉力F1时，所述的支撑面对光缆的弯折部位产生支撑力F2并限定光缆在该处的弯折半径，同时，引线孔的出口与光缆的出线方向相同也避免了引线套切割光缆的问题出现。During the use of the curved movable optical fiber connector, when receiving the pulling force F1 in the direction of the cable outlet, the support surface generates a supporting force F2 at the bending part of the optical cable and limits the bending radius of the optical cable there, and at the same time , The outlet of the lead hole is in the same direction as the cable outlet, which also avoids the problem of cutting the cable by the lead sleeve.

Claims (3)

1. curved formula free fiber-optics connector, this connector is take front end as inserted terminal, comprise housing and be assemblied in light contact element in the housing, the rear end of described housing fixedly is equipped with the lead-in wire cover of limit base and rigidity, the leaded hole of lead-in wire tackling, the light contact element is connected with optical cable, optical cable passes outlet behind the described fairlead, it is characterized in that, described lead-in wire cover to the bending of the outlet direction of optical cable and so that the outlet of fairlead towards the outlet direction of optical cable, the supporting surface that has arc on the hole wall of fairlead, under the supporting role of this supporting surface, the crooked process radius the during pulling force of optical cable on being subject to outlet direction is not less than it and allows radius bend.

2. curved formula free fiber-optics connector according to claim 1 is characterized in that, the hole wall of described fairlead upwards cooperates with optical cable is spacing in the footpath of optical cable.

3. curved formula free fiber-optics connector according to claim 1 and 2 is characterized in that, the outer cover of lead-in wire cover is equipped with curved formula sheath.

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