Patent ID: 9581393
Date: 2017-02-28
CPC Classifications: F21V,F21Y,F28D,H01L

Claim:
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.