Patent ID: 8391009
Filing Date: 2013-03-05
Classification: F21V,F21Y,H01L,H05K

Abstract:
1. A heat dissipating assembly comprising: a circuit board including opposite first and second faces, with the circuit board further including a plurality of through-holes extending from the first face through the second face, and a plurality of contacts; a plurality of heat generating elements each having a bottom mounted on the first face of the circuit board, with the plurality of heat generating elements electrically coupled to the plurality of contacts, with each of the plurality of heat generating elements including a heat conducting portion located at the bottom and aligned with only one of the plurality of through-holes, with the heat conducting portion of each of the plurality of heat generating elements having a first area, with each of the plurality of through-holes having a second area smaller than the first area and covered by the heat conducting portion of one of the plurality of heat generating elements a heat dissipating unit including a base having an engaging face in contact with the second face of the circuit board and facing the said through-holes; and a heat conducting silica gel filled in each of the plurality of through-holes, with the heat conducting silica gel engaged with the engaging face of the base and the heat conducting portion of one of the plurality of heat generating elements, with the only one of the plurality of through-holes being completely covered by the heat conducting portion of the one of the plurality of heat generating elements.