Led light source unit

Details Led light source unit Led light source unit

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 29/00 (2006.01) F21K 99/00 (2010.01) H01L 33/64 (2010.01) C09J 7/02 (2006.01) C09J 133/02 (2006.01) G02F 1/13357 (2006.01)

Patent

CA 2676947

An LED light source unit having excellent heat dissipation properties, preventing damage on an LED, illuminating brightly, and having a long service life. The LED light source unit has a printed circuit board, one or more light emitting diodes mounted on the printed circuit board, and an adhesive tape for fixing the printed circuit board to the surface of a heat dissipation member. The LED light source unit is characterized in that the heat conductivity of the tape is 1 to 4 W/mK, and the withstand voltage between a rear surface conductor circuit and a metal casing is 1.0 kV or higher.

La présente invention concerne une unité de source lumineuse DEL qui possède des propriétés de dissipation de chaleur excellentes ; elle empêche l'endommagement d'une DEL, éclaire fortement et dispose d'une durée de vie de service prolongée. Cette unité comporte une carte de circuit imprimé, une ou plusieurs diodes émettrices de lumière montées sur la carte de circuit imprimé et un ruban adhésif pour fixer la carte à la surface d'un membre de dissipation de chaleur. Cette unité de source lumineuse DEL se caractérise par le fait que la conductivité thermique du ruban est de 1 à 4 W/mK et que la tension de tenue entre un circuit conducteur de surface arrière et un boîtier métallique est de 1,0 kV ou plus.

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