| US 7,589,978 B1 | ||
| Air inlet diffuser | ||
| Paul Holdredge, Whitefish Bay, Wis. (US); and James R. Hamstra, Tigard, Oreg. (US) | ||
| Assigned to Flextronics AP, LLC, Broomfield, Colo. (US) | ||
| Filed on Nov. 16, 2005, as Appl. No. 11/280,784. | ||
| Claims priority of provisional application 60/675136, filed on Apr. 27, 2005. | ||
| Int. Cl. H05K 9/00 (2006.01) | ||
| U.S. Cl. 361—818 [361/800; 361/816] | 18 Claims |
| 1. An EMI shield for disposition relative to an air inlet opening through a surface of an electronics enclosure, comprising:
an end surface; and
a sidewall attached to the end surface, said sidewall forming a closed geometric shape and having an open end adapted for
interconnection about a periphery of said air inlet opening of said electronics enclosure, said sidewall including a plurality
of EMI attenuating apertures extending through said sidewall, wherein a maximum cross dimension of said EMI attenuating apertures
is no greater than 5 mm, wherein a combined area of said EMI attenuating apertures is greater than an area of said open end;
and
a baffle disposed on an outside surface of the sidewall for deflecting at least a portion of airflow passing through said
plurality of EMI attenuating apertures.
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