Light source with heat transfer arrangement

F - Mech Eng,Light,Heat,Weapons – 21 – V

Patent

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Details

F21V 29/00 (2006.01)

Patent

CA 2478802

A light source includes a light head and a heat transfer arrangement. The light head includes a tubular supporting frame, which has an interior space, and a luminary unit provided on the supporting frame. The heat transfer arrangement, for dissipating heat generated from the light head, includes a heat sink and a heat conductor having a sealed chamber, which has a first portion in the supporting frame and a second portion extended to the heat sink, and a cooling agent contained in the sealed chamber of the heat conductor, wherein the cooling agent is capable of being vaporized by the heat of the luminary unit and condensed by said heat sink so as to substantially enable the heat to flow from the luminary unit towards the heat sink.

L'invention concerne une source lumineuse comprenant une tête lumineuse et un ensemble thermoconducteur. La tête lumineuse comporte un cadre support tubulaire doté d'un espace intérieur, et une unité lumineuse située sur le cadre support. L'ensemble thermoconducteur, qui dissipe la chaleur générée par la tête lumineuse, comprend un dissipateur de chaleur et un conducteur thermique doté d'une chambre étanche, dont une première partie se trouve dans le cadre support et une deuxième partie s'étend vers le dissipateur de chaleur, ainsi qu'un agent de refroidissement contenu dans la chambre étanche du conducteur thermique, cet agent de refroidissement pouvant s'évaporer sous l'action de la chaleur de l'unité lumineuse et être condensé par le dissipateur de chaleur, de sorte que la chaleur peut sensiblement passer de l'unité lumineuse au dissipateur de chaleur.

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