An active connector and its rigid-flex printed board assembly

Abstract

An active connector includes an electric plug, a rigid-flex printed board assembly and an optical cable assembly, the electric plug includes an electric plug housing and electrical pins disposed in the electrical plug housing, and the optical cable assembly includes Sleeve, the front end of the sleeve is provided with a connecting nut that cooperates with the external thread provided on the outer periphery of the electric plug housing 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 housing is provided with a connecting nut. There is a groove that cooperates with the convex key to make the sleeve move forward in the axial direction during the screwing process of the connecting nut. The front end of the rigid-flex printed board assembly is provided with a socket, and the rigid-flex printed board assembly It is installed at the rear end of the electric plug housing and abuts against the front end of the sleeve after the optical cable assembly is screwed in place to achieve axial positioning, and at this time the jack is mated with the electric pin. The invention can prevent the optical fiber from being twisted and damaged inside the connector, makes the rigid-flex printed circuit board assembly easy to assemble and repair, and avoids stress on the pins of the optical module.

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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