Cooling for electronic components - involves using components embedded in heat conductive mass of metal powder in resin which has large heat transfer surface

摘要

An electrical component especially one intended for mounting on a printed circuit board, generates heat in operation which has to be removed. The live parts of the component are given an insulating coating and the whole component is then embedded in a coolant mass of a conducting material which has a large surface areasuch as an artificial resin, impregnated with metal powder, especially iron powder. The coolang mass (18) may be cast with a set of cooling ribs (19).