Light emitting diode with integrated heat dissipater

H - Electricity – 01 – L

Patent

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Details

H01L 33/00 (2006.01) H05K 1/02 (2006.01) H05K 3/30 (2006.01) H05K 1/18 (2006.01)

Patent

CA 2462175

A light emitting diode (LED) has an integrated heat sink structure for removing heat from an LED junction and for dissipating heat from the junction to the ambient air. The anode and the cathode both either act as or are coupled to a thermally conductive material which acts as the heat sink. In one embodiment, the heat sink forms a mounting configuration that allows air to circulate around multiple surfaces to maximize heat dissipation. As a result, the LED junction temperature remains low, allowing the LED to be driven with higher currents and generate a higher light output without adverse temperature- related effects.

L'invention porte sur une DEL à dissipateur thermique intégré éliminant dans l'air ambiant la chaleur produite par la jonction. L'anode et la cathode peuvent ou être elles-mêmes en matériau thermoconducteur, ou être reliées à un matériau thermoconducteur servant de dissipateur thermique. Dans une exécution, le dissipateur thermique présente une configuration permettant à l'air de circuler autour de multiples surfaces pour renforcer la dissipation de chaleur. Ainsi, la température de la jonction de la DEL reste basse, ce qui permet d'actionner la DEL avec des courants plus élevés produisant plus de lumière, et sans les effets adverses liés à la température.

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