Phase-change heat dissipating device and lamp

A phase-change heat dissipating device, comprising:

• a heat absorbing body for being in thermal contact with a heat source, and the heat absorbing body filled with a working fluid;
• at least two heat dissipation bodies being adjacent to two sides of the heat absorbing body that are different from each other, respectively;
• and
• a plurality of tubes connecting the heat absorbing body and the at least two heat dissipation bodies, when one of the at least two heat dissipation bodies is located higher than the heat absorbing body, and the working fluid absorbs heat energy generated from the heat source, the working fluid is evaporated from a liquid phase to a gas phase and flows into one of the at least two heat dissipation bodies through one of the plurality of tubes for dissipating heat, and the working fluid which is located in one of the at least two heat dissipation bodies is condensed from the gas phase into the liquid phase and flows to the heat absorbing bodies through one of the plurality of tubes.

A lamp, comprising:

• a case having a space and a light transmitting part which is connected to the space;
• at least one phase-change heat dissipating device disposed in the space, and the at least one phase-change heat dissipating device comprising:
• a heat absorbing body filled with a working fluid;
• at least one heat dissipation body having a first end and a second end, and the first end and the second end of the heat dissipation body being adjacent to two sides of the heat absorbing body that are different from each other, respectively;
• and
• at least two tubes connecting the heat absorbing body and the at least one heat dissipation body;
• and
• at least one light source being in thermal contact with the heat absorbing body, and the light source being exposed from the light transmitting part, when parts of the at least one heat dissipation body are 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 at least one heat dissipation body through one of the at least two tubes for dissipating heat, and the working fluid which is located in the at least one 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 tubes.

A lamp, comprising:

• a case having a space and a light transmitting part which is disposed on a side of the space;
• at least one phase-change heat dissipating device disposed in the space, the at least one phase-change heat dissipating device comprising:
• a heat absorbing body filled with a working fluid;
• at least two heat dissipation bodies being adjacent to two sides of the heat absorbing body that are different from each other, respectively;
• and
• a plurality of tubes connecting the heat absorbing body and the at least two heat dissipation bodies;
• and
• at least one light source being in thermal contact with the heat absorbing body, and the light source being exposed from the light transmitting part, when parts of one of the at least two heat dissipation bodies are 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 one of the at least two heat dissipation bodies through one of the plurality of tubes for dissipating heat, and the working fluid which is located in one of the at least two heat dissipation bodies is condensed from the gas phase into the liquid phase and flows to the heat absorbing bodies through one of the plurality of tubes.