CN203691856U

CN203691856U - Metal shielding clip

Info

Publication number: CN203691856U
Application number: CN201320853974.5U
Authority: CN
Inventors: 许君; 张晓峰; 何伟强; 王琳
Original assignee: Shenzhen Neo Photonic Technology Co Ltd
Current assignee: Shenzhen Apat Opto Electronics Components Co ltd
Priority date: 2013-12-23
Filing date: 2013-12-23
Publication date: 2014-07-02
Anticipated expiration: 2023-12-23

Abstract

The utility model provides a metal shielding clip, comprising a body fixed on a module metal base surface, and a plurality of elastic sheets tilting outwardly and connected to the body. The tilting movable end of each elastic sheet rolls inwardly to form a revolution body; the bottom of the revolution body and the module metal base surface form lower conductive connection points, and the top of the revolution body and the inner surface of a metal cage form upper conductive connection points. The tilting movable ends of the plurality of tilting outwardly elastic sheets connected to the body roll inwardly to form revolution bodies; the bottoms of the revolution bodies and the module metal base surface form a plurality of lower conductive connection points; meanwhile the top of the revolution bodies and the inner surface of the metal cage form a plurality of upper conductive connection points. Accordingly, the plurality of upper conductive connection points and lower conductive connection points allow a module, the metal shielding clip and a grounding metal cage to form a conductive loop, thereby well shielding the electromagnetic interference (EMI) of a pluggable optical transceiving module and raising the performance.

Description

A kind of metallic shield folder

Technical field

The utility model relates to a kind of shield electromagnetic interference device for pluggable light transceiving module, relates in particular to a kind of metallic shield folder.

Background technology

Along with the transmission rate of optical transceiver module increases, can face the unfailing performance problem of anti-electromagnetic interference EMI (Electromagnetic Interference, hereinafter to be referred as EMI).EMI is the electrical noise being produced by the electronic component of optical transceiver module inside, with the form performance of module emitting electromagnetic wave.The encapsulation of optical transceiver module especially especially easily produces electromagnetic interference with the encapsulation of the optical transceiver module of two-forty work, because EMI can disturb the normal operation of other electron component.Although in system host frame for metal cage (CAGE) ground connection of installation module, but, in the time that pluggable light transceiving module inserts cage work, between module metab and metal cage, may can not form conduction link circuit in some small gap, cause optical transceiver module there is no ground connection, cannot shield electromagnetic interference.

Summary of the invention

For overcoming above shortcoming, the utility model provides a kind of metallic shield folder that can be used for optical transceiver module shield electromagnetic interference.

The utility model provides a kind of metallic shield folder, comprise: one is fixed on the body on module metab surface, shell fragment with the multiple outside perks that are connected with this body, each shell fragment perk movable end is inwardly rolled up and is formed a revolution, the bottom of this revolution and module metab surface form lower conduction tie point, and its top and metal cage inner surface form conduction tie point.

Described body is also provided with multiple location holes.

The metallic shield folder of the pluggable light transceiving module of said structure, because the perk movable end of the shell fragment of the multiple outside perks that are connected with body is inwardly rolled up formation revolution, and the bottom of revolution and module metab surface form multiple lower conduction tie points, simultaneously, the top of revolution and metal cage inner surface form and also form many upper conduction tie points, like this, on multiple, lower conduction tie point just can make module, the metal cage three of metallic shield folder and ground connection forms galvanic circle, shield preferably the electromagnetic interference of pluggable light transceiving module, improve its performance.

Brief description of the drawings

Fig. 1 represents the pluggable light transceiving module structural representation with the utility model metallic shield folder;

Fig. 2 represents the metallic shield clamping structure schematic diagram shown in 1.

Embodiment

Describe the utility model most preferred embodiment in detail below in conjunction with accompanying drawing.

Metallic shield folder 10 as depicted in figs. 1 and 2, comprise: one is fixed on the body 11 on module metab surface, shell fragment 12 with the multiple outside perks that are connected with this body, each shell fragment perk movable end is inwardly rolled up and is formed a revolution, the bottom 1201 of this revolution forms lower conduction tie point with module metab surface, and its top 1202 forms conduction tie point with metal cage inner surface.It is fixing with module base surface that body 11 is also provided with multiple location holes 1101.

Because the perk movable end of the shell fragment of the multiple outside perks that are connected with body is inwardly rolled up formation revolution, and the bottom of revolution and module metab surface form multiple lower conduction tie points, simultaneously, the top of revolution and metal cage inner surface form and also form many upper conduction tie points, like this, multiple upper and lower conduction tie points just can make the metal cage three of module, metallic shield folder and ground connection form galvanic circle, shield preferably the electromagnetic interference of pluggable light transceiving module, improve its performance.

Claims

1. a metallic shield folder (10), it is characterized in that, comprise: one is fixed on the body (11) on module metab surface, shell fragment (12) with the multiple outside perks that are connected with this body, each shell fragment perk movable end is inwardly rolled up and is formed a revolution, the bottom (1201) of this revolution forms lower conduction tie point with module metab surface, and its top (1202) form conduction tie point with metal cage inner surface.

2. metallic shield folder according to claim 1 (10), is characterized in that, described body (11) is also provided with multiple location holes (1101).