Integral heat sink and housing light emitting diode assembly

H - Electricity – 01 – L

Patent

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Details

H01L 33/64 (2010.01)

Patent

CA 2726991

A light assembly (20) for mounting to a planar support includes an extruded heat sink (22) presenting a mount-ing surface (24) and a heat transfer surface (26) slanted from an upper border (32) to a lower border (30). A panel block (52) de-pends from the lower border (30), a lens block (68) depends from the upper border (32), a back side (76) extends downward-ly from the lens block (60), a truss member (82) interconnects the back side (76) and the heat transfer surface (26), and a mounting block (84) extends from the back side (76). The ex-truded heat sink (22) is cut into independent elongated sections (28) and light emitting diodes (44) are disposed thereon. The elongated sections (28) are mitered to one another to define a frame. A light directing panel (56) extends from the panel blocks (52) and a lens sheet (72) extends from the lens blocks (68).

L'invention porte sur un ensemble lumineux (20) pour un montage sur un support plan, lequel ensemble comprend un dissipateur thermique extrudé (22) présentant une surface de montage (24) et une surface de transfert de chaleur (26) inclinée d'un bord supérieur (32) à un bord inférieur (30). Un bloc de panneau (52) pend du bord inférieur (30), un bloc de lentille (68) pend du bord supérieur (32), un côté arrière (76) s'étend vers le bas à partir du bloc de lentille (60), un élément d'armature (82) interconnecte le côté arrière (76) et la surface de transfert de chaleur (26), et un bloc de montage (84) s'étend à partir du côté arrière (76). Le dissipateur thermique extrudé (22) est coupé en sections allongées indépendantes (28) et des diodes électroluminescentes (44) sont disposées sur celui-ci. Les sections allongées (28) sont à onglet les unes par rapport aux autres pour définir un cadre. Un panneau de direction de lumière (56) s'étend à partir des blocs de panneau (52) et une feuille de lentille (72) s'étend à partir des blocs de lentille (68).

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