Sectionally covered light emitting assembly

Details Sectionally covered light emitting assembly Sectionally covered light emitting assembly

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 29/00 (2006.01) F21K 99/00 (2010.01) F21S 2/00 (2006.01) H01L 33/00 (2010.01)

Patent

CA 2726876

A light emitting assembly (10) includes an aluminum heat sink (12) having a plurality of elongated slots (18) which space and define a plurality of sections (20). A pair of fins (30) extend from each section (20) along opposite sides of each elongated slot (18). A plurality of integral bridges (26) extend across the elongated slots (18). A screen (54) is disposed over each of the elongated slots (18). A light transmissive independent cover (44) is adhesively secured to each of the sections (20) around the light emitting diodes (28) so that one cover (44) independently covers the light emitting diodes (28) on each of the sections (20). The covers (44) are separated by the elongated slots (18). A housing (50) is spaced from the fins (30) and includes vents (52) whereby cooling air passes through the slots (18), over the fins (30), and out the vents (52).

L'invention porte sur un ensemble électroluminescent (10), qui inclut un dissipateur de chaleur en aluminium (12) comportant une pluralité de fentes allongées (18), qui espacent et définissent une pluralité de sections (20). Une paire d'ailettes (30) s'étendent à partir de chaque section (20), le long de côtés opposés de chaque fente allongée (18). Une pluralité de ponts intégrés (26) s'étendent à travers les fentes allongées (18). Un écran (54) est disposé sur chacune des fentes allongées (18). Un couvercle indépendant transmettant la lumière (44) est fixé par adhérence sur chacune des sections (20) autour des diodes électroluminescentes (28), de telle sorte qu'un couvercle (44) recouvre indépendamment les diodes électroluminescentes (28) sur chacune des sections (20). Les couvercles (44) sont séparés par les fentes allongées (18). Un boîtier (50) est espacé des ailettes (30) et comporte des évacuations (52), l'air de refroidissement traversant les fentes (18), passant sur les ailettes (30) et sortant par les évacuations (52).

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