PHASE-CHANGE HEAT DISSIPATION DEVICE AND LAMP

摘要

A phase-change heat dissipating device includes a heat absorbing body, a heat dissipation body and two tubes. The heat absorbing body is filled with a working fluid. A light source and the heat dissipation body are disposed on a same side of the heat absorbing body. The heat dissipation body has a light transmitting space which is corresponding to the light source. The tubes connect the heat absorbing body and the heat dissipation body. When the heat dissipation body is located higher than the heat absorbing body and the working fluid absorbs the heat energy generated from the light source, the working fluid is evaporated from liquid phase to gas phase and flows into the heat dissipation body through the tubes. The working fluid locating in the heat dissipation body is condensed from gas phase into liquid phase and flows to the heat absorbing body through the tubes.

主权项

1. A phase-change heat dissipating device, comprising:
a heat absorbing body for being in thermal contact with a light source, and the heat absorbing body filled with a working fluid; a first heat dissipation body, the light source and the first heat dissipation body being disposed on a same side of the heat absorbing body, the first heat dissipation body having a light transmitting space, and the light transmitting space being for corresponding to the light source; and at least two first tubes each connecting the heat absorbing body and the first heat dissipation body, when the first heat dissipation body is located higher than the heat absorbing body and the working fluid absorbs heat energy generated from the light source, the working fluid is evaporated from a liquid phase to a gas phase and flows into the first heat dissipation body through one of the at least two first tubes for dissipating heat, and the working fluid which is located in the first heat dissipation body is condensed from the gas phase into the liquid phase and flows to the heat absorbing body through the other one of the at least two first tubes.