Active connector and rigid-flexible printed board assembly thereof

Abstract

The invention provides an active connector. The active connector comprises an electric plug, a rigid-flexible printed board assembly and an optical cable assembly, wherein the electric plug comprises an electric plug shell and an electric pin arranged in the electric plug shell; the optical cable assembly comprises a sleeve extending in a front-back direction; the front end of the sleeve is provided with a coupling nut which is matched with an external thread arranged on the periphery of the electric plug shell so as to realize the assembly of the optical cable assembly and the electric plug; the front end of the sleeve is provided with a convex key, and the rear end of the electric plug shell is provided with a groove which is matched with the convex key so as to enable the sleeve to translate forwards in an axial direction in the screwing process of the coupling nut; and a jack is arranged at the front end of the rigid-flexible printed board assembly, the rigid-flexible printed board assembly is installed at the rear end of the electric plug shell and abuts against the front end of the sleeve to achieve axial positioning after the optical cable assembly is screwed in place, and at the moment, the jack is matched with the electric pin in an inserted mode. According to the invention, an optical fiber can be prevented from being twisted and damaged in the connector, the rigid-flexible printed board assembly is easy to assemble and repair, and pins of an optical module are prevented from being stressed.

Description

technical field [0001] The invention belongs to the technical field of connectors, in particular to an active connector and its rigid-flexible printed board assembly. Background technique [0002] Compared with traditional communication cables, optical fiber has the advantages of light weight, low loss, anti-electromagnetic interference, high transmission rate, etc., and has been used more and more in civilian and military industries. However, it has been found in use that, in addition to the quality factor of the equipment itself, the pollution of the optical fiber connector will also lead to increased link loss and even damage to the optical transmission system when the optical connector is required to be plugged and unplugged. In order to avoid equipment performance failure caused by end-face pollution, users need to check and maintain the optical path in the network within a fixed period through special instruments, which consumes a lot of manpower and material resources...

AI Technical Summary

Problems solved by technology

[0006] ① In order to ensure the consistency of the bonding and ensure the firm bonding, it is necessary to design special tooling to ensure that the assembly process is complicated;

[0007] ② When glue is applied, the glue is easy to flow to the non-adhesive surface, and there is a quality risk;

[0008] ③The glue curing cycle is long, which affects the product assembly cycle

[0009] ④The ring gasket and the printed board rigid board need a sufficiently large mating surface to ensure reliable bonding, occupying limited space for the printed board components

[0010] ⑤ Glue is bonded and fixed, and the repairability is poor. It needs to be heated during disassembly, and there is a risk of damaging the printed board.

[0011] ⑥Due to the different heights of the laser and the detector, the positioning surface of the smooth surface is inconsistent, that is, the optical surface is not on the same horizontal plane in the axial direction. Welding and fixing the laser and detector will easily cause the solder joints to be stressed, and there is a risk of damage

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