Patent ID: 6384325
Filing Date: 2002-05-07
Classification: H05K

Abstract:
An electronic component, comprising:an enclosure; a ventilation and wave-guide electromagnetic interference (EMI) seal assembly for providing airflow to ventilate said electronic component and attenuate high frequency electromagnetic radiation outside said enclosure, said high frequency electromagnetic radiation being generated by an electronic device housed within said enclosure; said ventilation and wave-guide EMI seal assembly comprises: a nested structure comprising a first corrugated metal sheet and a second corrugated metal sheet; a retaining structure for retaining said nested structure in a predetermined position; said first corrugated metal sheet is characterized by a plurality of primary troughs, each of said primary troughs having a height H1, a depth T1 and an open end; said second corrugated metal sheet is characterized by a plurality of secondary troughs, each of said secondary troughs having a height H2, a depth T2 and an open end, said secondary corrugated metal sheet is configured so that the height of said secondary troughs H2 is less than the height H1 of said primary troughs; said second corrugated metal sheet is arranged with said first corrugated metal sheet so that at least one of said plurality of primary troughs of said first corrugated metal sheet receives said second corrugated metal sheet through said open end, thereby forming a first duct having a diagonal cross section D1; and said retaining structure is configured to receive said nested structure so as to enclose at least one of said plurality of secondary troughs and thereby form a second duct having a diagonal cross section D2, and to enclose at least one of said plurality of primary troughs thereby forming a third duct having a diagonal cross section D3.