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emi gasket

A gasket and electromagnetic interference shielding technology, applied in the field of electromagnetic interference gaskets, can solve problems such as non-compliance of connectors

Inactive Publication Date: 2015-08-26
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the use of conductive metal washers will make the connector non-compliant with SFF 8088

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 is a gasket for use in conjunction with an electromagnetic interference (EMI) shielding box for a connector, the gasket comprising: a conductive body having an opening configured to receive an EMI shielding box A first end positioned adjacent to a gasket mating wall integrated into the EMI shielding box, wherein the conductive body includes a first face designed to face away from the gasket mating wall, a first face designed to face the gasket mating wall A second face, an inner perimeter, and an outer perimeter; a plurality of engagement tabs disposed along the outer perimeter and extending away from the first face; and a plurality of spring tabs along the disposed about the inner periphery and extending away from the second face, wherein when the first end of the EMI shielding box is inserted into the opening of the conductive body and the opening of the optional complementary panel with the engagement tabs facing the panel and the spring tabs facing the E...

Embodiment 2

[0039] Embodiment 2 is the gasket of embodiment 1, wherein the predetermined separation distance D1 is from about 1.13 millimeters to about 2.13 millimeters.

Embodiment 3

[0040] Embodiment 3 is a washer according to one of above embodiments 1 to 2, wherein the spring tab further comprises a first portion configured to connect the spring tab to the washer, a first portion configured to, in use, contact the mating wall of the washer. Two parts, and a kink connecting the first part to the second part.

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PUM

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Abstract

A gasket for use with an electromagnetic interference (EMI) shielding cage for a connector includes a conductive body having an opening configured to receive a first end of the EMI shielding cage near a gasket mating wall incorporated on the EMI shielding cage. The conductive body has a first face designed to face away from the gasket mating wall, a second face designed to face the gasket mating wall, an inner perimeter and an outer perimeter. A plurality of engagement tabs are disposed along the outer perimeter and extend away from the first face. A plurality of spring tabs are disposed along the inner perimeter and extend away from the second face. When the first end of the EMI shielding cage is inserted into the opening of the conductive body and an opening of an optional complementary faceplate with the engagement tabs facing the faceplate and the spring tabs facing the gasket mating wall of the EMI shielding cage, the engagement tabs and the spring tabs cooperatively maintain a predefined separation distance D1 between the gasket mating wall and the optional complementary faceplate.

Description

technical field [0001] The present invention relates to electromagnetic interference ("EMI") gaskets, and more particularly to EMI gaskets intended for use in conjunction with shielding boxes that provide shielding and shielding from electromagnetic interference. Background technique [0002] It is common practice to connect cables to printed circuit boards (PCBs) by utilizing plug connectors located at the ends of the cables, which are intended to plug into opposing mating connectors. The mating connector 10 is typically mounted on a PCB disposed within the housing of the electronic device. Other electronic modules may be mounted on the PCB. The various electronic modules can emit electromagnetic interference ("EMI"), which can interfere with and adversely affect signal transmission between the connectors. [0003] The mating connector can be shielded from EMI by utilizing a metal shielding box (or sometimes referred to as an EMI shielding box), which is also mounted on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/658H05K9/00
CPCH01R13/65802H05K9/0058H01R13/745H01R13/6584H01R13/658
Inventor 乔云龙
Owner 3M INNOVATIVE PROPERTIES CO