US-20260128553-A1 - MODULE WITH NETWORK INTERFACE

US20260128553A1US 20260128553 A1US20260128553 A1US 20260128553A1US-20260128553-A1

Abstract

The present invention relates to the field of optoelectronic communication and provides a module with a network interface. The module with a network interface comprises a base, a circuit assembly, and shielding elastic sheets. The base is provided with a screw seat thereon, and a first boss is provided on a side surface of the base. The circuit assembly comprises a circuit board, a network interface, and a grounding spring sheet. The circuit board is provided with a first notch which is coupled to a side wall of the screw seat; the grounding spring sheet is fixed on the circuit board and connected to the base. The shielding elastic sheet comprises two oppositely arranged side walls, each of which is provided with a folded edge, wherein the folded edge has a first buckling hole, which is buckled into the first boss to fix the shielding elastic sheet on the base. The present invention achieves the grounding of the circuit board and improves the EMC performance of the module through the setting of the shielding elastic sheet and the grounding spring sheet.

Inventors

Yaoxin Luo
Mengyang Song
Feng Li
Qiang Hu
Yun Zhou
Chunyan Zhang

Assignees

ACCELINK TECHNOLOGIES CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20221124
Priority Date: 20221011

Claims (10)

1 . A module with a network interface, comprising: a base, a circuit assembly, and shielding elastic sheets, wherein the base is provided with a screw seat thereon, and a first boss is provided on a side surface of the base; wherein the circuit assembly comprises a circuit board, a network interface, and a grounding spring sheet; the circuit board is provided with a first notch thereon, which is coupled to a side wall of the screw seat; and the grounding spring sheet is fixed on the circuit board and connected to the base; and wherein the shielding elastic sheet comprises two oppositely-arranged elastic sheet side walls, each of which is provided with a folded edge; the folded edge has a first buckling hole which is buckled into the first boss to fix the shielding elastic sheet on the base; and the network interface is arranged between the two elastic sheet side walls.
2 . The module with a network interface of claim 1 , wherein the shielding elastic sheet further comprises a bottom wall, which is arranged between two elastic sheet side walls; the bottom wall is provided with an extension portion, which is arranged on the base and located below the grounding spring sheet; and the grounding spring sheet abuts the extension portion.
3 . The module with a network interface of claim 2 , wherein the bottom wall comprises a bottom surface, and one end of the bottom surface is provided with a connection portion, one end of which is connected to the bottom surface, and the other end of which is connected to the extension portion; wherein the extension portion is parallel to the bottom surface, and the connection portion ( 332 ) is inclined to the bottom surface; wherein the base is provided with an installation surface, a first installation portion, and a second installation portion thereon, wherein the first installation portion is arranged between the installation surface and the second installation portion, and a plane on which the second installation portion is located is higher than a plane on which the installation surface is located; and wherein the bottom surface is attached to the installation surface, the connection portion is attached to the first installation portion, and the extension portion is attached to the second installation portion.
4 . The module with a network interface of claim 3 , wherein the elastic sheet side walls comprise a first side surface, a second side surface, and a third side surface, wherein the first side surface is connected to the second side surface, and the second side surface is connected to the third side surface, and the third side surface is connected to the bottom surface, wherein the first side surface is parallel to the third side surface, and the second side surface is inclined to the first side surface; wherein the first side surface is provided with a guiding sheet which is inclined outward; and wherein a limiting sheet is provided on the third side surface, a corresponding first limiting groove is provided on the base, and the limiting sheet is bent to fit into the first limiting groove, thereby fixing the shielding elastic sheet on the base.
5 . The module with a network interface of claim 4 , wherein the base is provided with a first attachment surface, a second attachment surface, and a third attachment surface thereon, wherein the first attachment surface is connected to the second attachment surface, the second attachment surface is connected to the third attachment surface, and the third attachment surface is connected to the installation surface, wherein the second attachment surface is inclined to the first attachment surface and the third attachment surface respectively; and wherein the first side surface is attached to the first attachment surface, the second side surface is attached to the second attachment surface, and the third side surface is attached to the third attachment surface; and wherein the second attachment surface is provided with a first limiting groove which is located adjacent to the installation surface.
6 . The module with a network interface of claim 4 , wherein two protrusions are provided on each of the first side surfaces, and the protrusions are staggered on the two elastic sheet side walls, and it limits the registered jack after the registered jack is inserted into the network interface.
7 . The module with a network interface of claim 1 , wherein the module with a network interface further comprises a cover plate, wherein the cover plate is provided with screw holes, buckling protrusions, and a cover closing stopper, and screws pass through the screw holes into the screw seat to fix a rear end of the cover plate on the base; and wherein the base is also provided with a buckling groove and a cover closing groove, and when the cover plate is installed on the base, the cover closing groove is coupled with the cover closing stopper, and the buckling protrusion enters the buckling groove, achieving the fixation of the cover plate at a front end of the base.
8 . The module with a network interface of claim 7 , wherein the circuit board is further provided with a second notch, and a side surface of the first notch is inwardly recessed to form the second notch; the screw seat is provided with a platform and a semi-cylinder, and the cover plate is also provided with a protruding column and a shielding wall; and wherein when the circuit assembly is installed on the base, the semi-cylinder is located in the second notch to limit the circuit assembly, the protruding column presses the circuit board onto the platform, and a front end of the circuit board is accommodated in a gap between the shielding wall the base.
9 . The module with a network interface of claim 7 , wherein the module with a network interface further comprises a fully enclosed elastic sheet, on which a buckling edge, a limiting hole, and an elastic claw are provided, wherein the cover plate is provided with a limiting protrusion corresponding to the limiting hole, and the base is provided with a second limiting groove corresponding to the buckling edge, the limiting protrusion being fitted into the limiting hole; the buckling edge is buckled into the second limiting groove, and the elastic claw holds the base and the cover plate.
10 . The module with a network interface of claim 1 , wherein the module with a network interface further comprises a mesh mask plate, which is provided with a second buckling hole and a third notch, wherein the side surface of the base is provided with a second boss corresponding to the second buckling hole, and the second buckling hole is buckled into the second boss to fix the mesh mask plate on the base; and wherein the base is further provided with a locking groove, and after the mesh mask plate is fixed on the base, the third notch is located above the locking groove, and an opening size of the third notch is smaller than that of the locking groove, so that a part of the mesh mask plate next to the third notch covers a part of the locking groove, thereby limiting the registered jack.

Description

CROSS-REFERENCE The present disclosure claims a benefit of, and priority to Chinese Patent Application No. 202211240311.6 filed on Oct. 11, 2022, the disclosure of which is hereby expressly incorporated by reference herein in its entirety. TECHNICAL FIELD OF THE DISCLOSURE The present invention relates to the field of optoelectronic communication technology, particularly to a module with a network interface. BACKGROUND With the development of the optical communication industry, the operating frequency of optoelectronic communication modules is increasing, and they are facing increasing stronger electromagnetic interference. Thus, the requirement for the Electromagnetic Compatibility (EMC) performance of the modules is raised higher. EMC is divided into two parts: Electromagnetic Susceptibility (EMS) and Electromagnetic Interference (EMI), wherein EMS is used to evaluate the stability of the module itself, while EMI is used to evaluate the external noise level of the module. In order to improve the EMC of the module, targeted improvements need to be made to the module, and electrostatic coupling interference and magnetic field coupling interference can be alleviated through grounding. However, it is difficult to ground the circuit board in existing modules; the principle of metal isolation can also be used to control the interference of electric or magnetic fields in one area on another area. In existing modules, electromagnetic shielding is only achieved through a shell, but there are gaps in a shielding body formed by the shell, and the interference signal cannot be completely isolated by the shell. Especially, as the frequency increases, the wavelengths of high-frequency interference signals become equivalent to the size of the gaps, and the interference signal enters the shell through the holes and gaps, causing interference to the optical module and make it unable to meet the electromagnetic shielding requirements of the module working at high frequencies. At the same time, some existing modules require specialized auxiliary tools for assembling during installation, which is a cumbersome process. Moreover, after inserting the registered jack into the socket, due to insufficient effective positioning limiting, the network cable is easily pulled out of the socket when subjected to external forces. Given this, overcoming the shortcomings of the existing technology is an urgent issue that needs to be solved in this technical field. SUMMARY In response to the above deficiencies or improvement requirements of the existed technology, the present invention proposes a module with a network interface, for the purpose of connecting the circuit board to the base of the module through a grounding spring sheet, thus achieving large-area grounding of the circuit board. The network interface on the circuit board is arranged on a shielding elastic sheet, and the shielding elastic sheet and a module shell jointly form the shielding body of the network interface, providing double-layer shielding. Moreover, the shielding elastic sheet contacts the base of the module, which achieves large-area grounding of the shielding elastic sheet, and improves ability of the EMC on anti-electromagnetic interference, and overcomes the difficulty or even inability of grounding or large-area grounding of the circuit board of the existing module. If shielding is only achieved by the shell, high-frequency interference signals will enter the interior through the gaps of the shell, resulting in poor EMC performance and being unable to meet the requirement of high working frequency. To achieve the above objectives, according to one aspect of the present invention, there is provided a module with a network interface, comprising a base, a circuit assembly, and shielding elastic sheets, wherein the base is provided with a screw seat, and a first boss is provided on the side surface of the base;wherein the circuit assembly comprises a circuit board, a network interface, and a grounding spring sheet; the circuit board is provided with a first notch thereon, which is coupled to a side wall of the screw seat; and the grounding spring sheet is fixed on the circuit board and connected to the base; andwherein the shielding elastic sheet comprises two oppositely arranged elastic sheet side walls, each of which is provided with a folded edge; the folded edge has a first buckling hole, which is buckled into the first boss to fix the shielding elastic sheet on the base; and the network interface is arranged between the two elastic sheet side walls. Furthermore, the shielding elastic sheet further comprises a bottom wall which is arranged between two elastic sheet side walls, and the bottom wall is provided with an extension portion which is arranged on the base and located below the grounding spring sheet; and the grounding spring sheet abuts the extension portion. Furthermore, the bottom wall comprises a bottom surface, one end of which is provided with a c