Electronic unit
AssigneeNorthern Telecom Limited
InventorsTrevor Zapach, William D. Jeakins, Steven Muegge
Life of this patent
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Abstract
Electronic unit in which a heat conductive mounting comprises two spaced apart holding elements providing a receiving station for a printed circuit board. Edge regions of the board are in heat conductive engagement with the holding elements. Heat is conducted from electronic components on the board into the holding elements and from there into heat pipes connected to the holding elements. A housing around the heat pipes has apertures for flow of cooling air around the heat pipes. Part of the housing around the receiving station is thermally insulated thereby ensuring that substantially all of the heat is removed through the heat pipes.
Claims13
An electronic unit comprising a heat conductive mounting comprising two spaced apart holding elements defining a receiving station region for at least one substrate carrying an electronic component with remote edge regions of the substrate held in heat conductive engagement with the holding elements, heat pipe means heat conductively connected to the holding elements for conductive removal of heat from the conductive mounting, and housing means having a thermally insulated part extending around the receiving station region and around the conductive mounting, the housing means also extending around the heat pipe means and formed with apertures to permit cooling air to flow by convention across surfaces of the heat pipe means with the housing means separating the receiving station region from the air flow.
Dependencies are inferred from the claim text.