Optical cable connector

FIELD: physics.

SUBSTANCE: optical cable connector has an invar housing in form of a bushing on whose two sides of which there are two nodes through which cables pass. The node which can rotate consists of a shaft with a stepped hole along the axis, bearings and a spacer bushing. The rigidly mounted node consists of a bushing superimposed with a ferrule. The ferrule has a lateral recess which is filled with gel and is closed with a casing. Cleared ends of the cables are placed in the lateral recess.

EFFECT: more reliable operation and miniaturisation.

3 cl, 4 dwg

 

Connector for optical cable is designed for use in the field of communication to transfer information from a rotating or rotating objects through fiber-optic cables.

A known connector for optical cables, comprising a housing made of two connected parts, one of which is mounted for rotation, in which the springs, spring-loaded ferrule, each of which is placed a fiber optic cable passing inside the bushings that are installed on two sides of the chassis (see US patent No. 5633963, 27.05.1997).

The disadvantages of this connector is the complexity of manufacturing, because of the required high accuracy of manufacturing a connector, to maintain the alignment of the fibers, providing the exception of optical losses in the rotation process, which requires the implementation of high precision rotation elements, which complicates the design of the connector and increases the cost of its manufacture. In addition, the known connector has an enlarged dimensions, especially the rotating element, resulting in the linear speed of the rotating parts is large, which limits the speed of rotation of the connector that leads to decrease in the reliability of the transmission signal from one cable to another and increases the wear of the connector.

The technical result is m is to increase reliability, the reduction in size and reduction of the cost of a connector for optical cables.

Figure 1-4 shows the optical connector.

Optical connector (figure 1) consists of a body 1 in which the opposed posted two nodes 2 and 3, each with fixed therein an end of the optical cable 4, and 5. In case 1, made in the form of a sleeve, there is an adjustment window 6, which in the assembled closed casing 7 with the fastening elements of the connector 8.

Site 2 are shown in detail in figure 2. It consists of a shaft 9 with a stepped hole along the axis of the optical cable 4 having the capillary 10, the bearings 11 and 12 and spacers 13.

The outer end of the optical cable 4 is inserted into the hole of the shaft 9, and the stripped end 14 of the capillary 10 is inserted into ferrule.

Node 3 is shown in figure 3 and consists of a sleeve 15, which is combined with ferrule 16. Ferrule 16 is made with a notch 17.

The outer end of the optical cable 5 is glued into the sleeve 15, and it cleared the end of the 18 - to ferrule 16. The cutout 17 in ferrule 16 filled with an optical gel and is closed by a cover 19.

The operating status of the connector assumes the exact relative positions of the nodes 2 and 3. When assembling the neckline 17 ferrule 16 (figure 4) is the distance between the ends of optical fibers of 0.03-0.05 mm and held in this range regardless of the temperature, because the connector vypolnenij alloy, possessing a low coefficient of thermal expansion (for example, "INVAR").

Information transfer is effected during the rotation of node 2 with fixed therein an optical cable, purified from the membranes of the end 14 is rotated in the hole ferrule, passing information on to the cleaned end 18 of the optical cable 5. Thus the eccentricity of rotation of the end face of the fiber in ferrule is not associated with the radial runout of the shaft 9 and is determined by the tolerances on the diameters of the fibers and holes ferrule that does not exceed 0,001-0,002 mm, which ensures the alignment of optical fiber cables and more accurate information than its nearest analogue, as well as the transmission of information at high speeds of rotation.

The axial gap rotating cable, depending on the fixing shaft 9 (2) in the bearings 11 and 12, is minimized with a bushing 13. All this ensures the stability and reliability of the connector.

In a connector in a single body, eliminating moving parts that secures the optical cables and cleaned the optical fiber, decrease the dimensions of the connector and the cost of its manufacture. The absence of said intermediate elements eliminates their mutual displacement during rotation and temperature variations, which increases the reliability of the connector.

1. Connector for optical is Abela includes a housing, in which opposing installed two nodes, each with fixed therein an end of the optical cable, one of the nodes has the capability of rotation, and the other node is stationary, is installed inside the case of ferrule, characterized in that the casing is made in the form of a sleeve, the node is rotatably installed at one end of the casing and consists of a shaft with a stepped bore along the axis, which has an optical cable, bearings and spacers fixedly mounted Assembly is mounted on the other end of the casing and consists of a sleeve pinned in her cable, combined with ferrules made with side cut hosting stripped ends of the cables, and which is filled with silicone gel.

2. Connector for optical cable according to claim 1, characterized in that the side cutout ferrule closed the case.

3. Connector for optical cable according to any one of claims 1 and 2, characterized in that the connector housing is made of Invar.



 

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