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US 6,646,197 B1Granted
High performance EMI shield for electronic equipment
AssigneeNortel Networks Limited
InventorsDarko Cugalj, Paul Przybycien
Life of this patent
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Abstract
The present invention relates to an electronic module which has a honeycomb material held within a solid metal frame as the top and bottom of the module. This structure provides increased capacity for convective cooling and increased electromagnetic radiation shielding over previous options.
Claims26
A module for enclosing electronic systems which generate electromagnetic radiation and thermal energy comprising:
- an electrically conductive metal front,
- an electrically conductive metal left side mechanically and electrically connected to said front,
- an electrically conductive metal right side mechanically and electrically connected to said front,
- a rear opening,
- a top frame of electrically conductive cast or machined solid metal which is mechanically and electrically connected to said front, said left side and said right side, said top frame having at least one opening,
- electrically conductive honeycomb material received in and substantially filling the at least one opening in said top frame and being mechanically and electrically connected to said top frame,
- a bottom frame of electrically conductive cast or machined solid metal which is mechanically and electrically connected to said front, said left side and said right side, said bottom frame having at least one opening, and
- electrically conductive honeycomb material received in and substantially filling the at least one opening in said bottom frame and being mechanically and electrically connected to said bottom frame,
- whereby the honeycomb material provides electromagnetic radiation shielding while permitting airflow therethrough.
6 more elements
A frame and honeycomb assembly for use with a module comprising:
- a frame of electrically conductive cast or machined solid metal, and
- electrically conductive honeycomb material received in and substantially filling an at least one opening in said frame and being mechanically and electrically connected to the said frame,
- whereby the honeycomb material provides electromagnetic radiation shielding while permitting airflow therethrough.
Dependencies are inferred from the claim text.