Optical port electromagnetic shielding structure of optical module

Abstract

The invention discloses an optical port electromagnetic shielding structure of an optical module. The structure comprises a shielding shell and an upper cover, a threaded hole is formed in the bottomof the shielding shell, a screw rod is installed in the threaded hole in a threaded mode, one end of the screw rod extends into the shielding shell, one end of the screw rod is rotatably connected with a lifting plate, a sliding groove is formed in the inner wall of the shielding shell, a sliding block is fixedly welded to the side wall of the lifting plate, the sliding block is slidably mounted in the sliding groove, a sinking table is arranged at the upper end of the shielding shell, the upper cover is fixedly mounted on the sinking table at the upper end of the shielding shell through a fixing bolt, and rubber blocks are arranged on the lower surface of the upper cover at equal intervals. When in use, the height of the lifting plate can be adjusted according to the actual size of the optical module, so that the internal space of the shielding shell is adjusted, and the application range of the electromagnetic shielding structure is expanded to a certain extent.

Description

technical field [0001] The invention relates to the technical field of optical modules, in particular to an electromagnetic shielding structure for an optical port of an optical module. Background technique [0002] The optical module is composed of optoelectronic devices, functional circuits and optical interfaces. The optoelectronic devices include two parts: transmitting and receiving. Simply put, the function of the optical module is to convert the electrical signal into an optical signal at the sending end. Optical signals are converted into electrical signals. With the continuous improvement of people's requirements for transmission efficiency, the transmission speed of optical modules is also increasing; while the transmission rate of optical modules is increasing, the phenomenon of electromagnetic disturbance is becoming more and more serious. Especially The electromagnetic noise generated by the components of the optical transceiver module is manifested in the form ...

AI Technical Summary

Problems solved by technology

[0003] The electromagnetic shielding structure of the optical port of the existing optical module is mostly shielded by a metal box, but the existing metal and the size of the internal space cannot be adjusted according to the actual situation of the optical module, resulting in a small scope of application, so we propose the optical module Optical port electromagnetic shielding structure

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