CS255192B1 - Fiber Optic Cable Connector - Google Patents

Abstract

The connector is designed for bundled optical cables with crimping of the connecting part, especially for connection modules in telecommunications. The cable gland has a beveled end housing a sleeve, in the axis of which there is a continuous hole for the cable. The sleeve is fixed with a thread in the optical fork at the other end. The outer shell of the optical fork has a shoulder for a sealing insert and a groove for a locking spring. The locking spring engages in a groove in the union nut. The union nut is provided with a thread for connecting other components. The optical fork carries a sleeve for fixing the fiber bundle. Two cylindrical surfaces (A, B) are formed on the sleeve for crimping the cable. The connector for optical cables with crimping is suitable for connection modules that can be used for various devices and instruments that process information transmitted by optical fiber cables.

Description

BACKGROUND OF THE INVENTION The invention relates to a connector for bundled optical cables with crimping of the connection part, in particular for connection modules in telecommunications.

The prior art connection modules use single-fiber light cables to transmit light energy. Using this connection module in an environment with high mechanical, climatic or electrical stress may damage or destroy the light cable. Therefore, it is advantageous to use a beam light cable in the module. In case of mechanical damage up to 90% of fiber optic fibers in the cable, there will be no failure in the transmission of information and eventual failure of the controlled equipment. However, suitable connectors are not known for beam modules.

Known connectors for single-fiber cables consist of a housing in the axis of which there is a through hole for the cable and a chamfer provided with a sleeve is formed at the end portion of the housing. The bundled cable cannot be attached to these connectors.

It is an object of the invention to overcome this drawback. According to the essence of the invention, this is achieved by providing two cylindrical crimping surfaces on the housing, one of which is covered by a cable gland. The second surface is covered by an optical plug mounted on the housing and supporting the housing to fix the fiber bundle of the cable. On the periphery of the optical plug there is formed a shoulder for a sealing insert and on the other hand a plug for an aretaphine spring, which protrudes into a groove in a threaded union nut for the connection of another part, such as a photoelectric, phototransistor etc.

The fiber optic connector of the present invention allows the cable harness to be firmly attached. The fiber optic bundle is glued in the connector and mechanically pressed in two places. Mounting the connector is quick and easy. On the cable side it is possible to seal the joint.

An example of the invention is further described with reference to the drawing. The cable duct 6 has a chamfered end housing a housing 5, in the axis of which the through hole for the cable 2 is located. · The housing 2 is fastened with its other end by a thread in the optical plug. The locking spring 2 extends into a groove in the union nut 2. The union nut 3 is threaded to connect another part to the connector. The optical fork 2 supports a housing 2 P ^ro fixation fiber bundle. Two cylindrical surfaces A, B are provided on the housing 5 for crimping the cable 8.

During installation, the cable gland 6 is first pushed onto the cable 2 and the sleeve 2 is removed. The exposed fiber bundle be glued into the casing 2 P ^ro fiber bundle fixing adhesive, preferably epoxy. After curing of the adhesive, the sleeve 5 is fastened at a prescribed distance, determined by the connector size. The mounting is carried out mechanically by crimping on two cylindrical faces A, B. plug 2 ^and the cable gland 6 is fitted, which prevents sharp bending of the cable 8 just behind the connector. At two optical modes casting ^8e seeded union nut 2 for fixed connection with the other components of the connector. Locking spring 2 is used for connecting the union nut 2 with the optical plug 2 · ^A sealing insert is used ^for hermetizing the connection

The connection module may be provided with connectors according to the invention at both ends. By pressing the bundle cable 8 into the sleeves 2 ^{at either} end and by means of the sealing insert 4, a positive pressure closure is achieved and hermetically sealed inside the cable 2.

The crimped fiber optic connector is primarily designed for connection modules for telecommunications equipment. The connection modules can be used for a variety of devices and apparatus for processing information transmitted by light beam cables.

SUBJECT OF THE INVENTION

Claims (1)

SUBJECT OF THE INVENTION Connector for bundled optical cables with crimping of the connection part, consisting of a housing in the axis of which the through hole for the cable and at least one hexagon on the surface, while at the end portions a bevel and a sleeve are provided, two cylindrical surfaces (A, B) are provided for crimping, of which one cylindrical surface (A) is covered by a cable gland (6), while the other cylindrical surface (B) is covered by an optical plug (1) fixed to the housing (5) threaded and carrying a sleeve (7) for fixing the fiber bundle of the cable (8), wherein on the periphery of the optical plug (1) a shoulder for a sealing insert (4) and a recess for a locking spring (3) extending into the groove in a threaded union nut (2) to connect another component, such as a photodiode, a phototransistor, and the like.