Modulized LED apparatus with enhanced heat dissipation

摘要

A modulized LED apparatus includes a container having a chamber wall with a chamber therein, a transparent surface thereof for the container to be pervious to radiant energy and/or light. The container has an optical processing area for converging, collecting or diffusing radiant energy and/or light. A liquid refrigerant and an evaporator including a heat conductor unit and a capillary unit are in the chamber, and the capillary unit has a portion contacting the liquid refrigerant. With the heat generated by an operating LED device, the evaporator evaporates the liquid refrigerant into a gaseous phase, which then condenses on the chamber wall and thus transfers heat to the chamber wall for dissipating, and the condensed refrigerant is evaporated again by the evaporator again into the gaseous phase. Due to this thermal recycling, the refrigerant continuously transfers heat from the LED device to the ambient environment.

主权项

1. A modulized LED apparatus with enhanced heat dissipation, comprising:
a container having a chamber wall with a chamber therein, the chamber wall having a transparent surface allowing the container to be pervious to radiant energy including light, the container having an optical processing area for converging, collecting or diffusing radiant energy including light; a liquid refrigerant in the chamber of the container; an evaporator in the chamber, of the container, partially contacting the liquid refrigerant contained in the chamber of the container, for heat and evaporate the liquid refrigerant into a gaseous refrigerant pervading the chamber of the container and to be condensed on the chamber wall of the container away from the evaporator in order to return to the liquid refrigerant; and an LED device having an active surface and being thermally connected to the evaporator in the chamber, the active surface being exposed outside the liquid refrigerant; wherein the evaporator comprises:
a heat conductor unit thermally connected to the LED device; anda capillary unit thermally connected to the heat conductor unit and in contact with the liquid refrigerant in the chamber of the container, so that the liquid refrigerant is drawn to the capillary unit under capillarity, and then gets heated and evaporated by the heat conductor unit into the gaseous refrigerant pervading the chamber of the container away from the evaporator; wherein the capillary unit comprises a thermally conductive capillary plate having a sandwich structure composed of a thermally conductive material and a capillary material, the thermally conductive material being thermally connected to the heat conductor unit, the capillary material being close to the chamber wall.