EMI shielding vent panel frame

摘要

An electromagnetic interference (EMI) shielded vent panel for disposition over an opening of an electronics enclosure is provided. The panel includes an electrically-conductive medium having an outer periphery supported within an electrically-conductive frame. The frame is configured as having a generally C-shaped or U-shaped cross-sectional profile, and includes an elongate end wall, and a pair of opposed side walls extending inwardly from the end wall to contact and secure the medium. Preferably, the medium includes individual cells forming a honeycomb structure. The frame is provided with a series of vertical posts extending between the opposed side walls of the frame to reduce the formation of foreign object debris caused by holes drilled in the frame to receive screws or bolts for mounting the vent panel to the opening of an electronics enclosure. The posts also provide additional structural integrity and rigidity for the frame member.

主权项

1. An electromagnetic interference (EMI) shielded vent panel for disposition over a corresponding opening formed within a surface of an electronics enclosure, the opening having a predefined outer margin, said vent panel comprising:
an electrically-conductive frame member having a perimeter defining a closed geometry configured to circumscribe the opening of the electronics enclosure, said frame having a generally C-shaped cross-sectional profile including an elongate end wall and an open interior section, and a pair of opposed side walls extending from the end wall and projecting inwardly, said side walls being spaced apart a predetermined distance from each other, said frame being disposable about the opening of the enclosure in electrically-conductive adjacency with the surface thereof, said frame further comprising a series of vertical posts extending between the side walls, said posts being drillable to form fastener-receiving apertures in the posts; and an electrically-conductive medium having an outer periphery and extending along a transverse axis intermediate a pair of faces defining a thickness dimension therebetween, said medium comprising a plurality of cells which define a plurality of ventilation passageways extending through said thickness dimension generally along said transverse axis, the outer periphery of said medium being received intermediate the inner surfaces of the frame side walls such that each of the frame side walls extends over a corresponding edge portion of the faces of said medium and is in electrical contact therewith.