Abstract: A flat heat pipe includes a tube, a sealed section, an insulation section and a heat conduction section. The tube includes a metal shell and a chamber. The sealed section is formed by rolling the metal shell and making two opposite inner walls of the tube combined closely on the tube that separate the chamber into a first chamber and a second chamber. The insulation section is a hollow chamber including the first chamber. The conduction section includes the second chamber, a capillary and working fluid. Further, the heat conduction device includes a heat dissipating shell, a heating element and a flat heat pipe. The plate heat pipe is disposed in the heat dissipating shell and thermally conducted with the heating element.

Abstract: A flat heat pipe includes a tube, a sealed section, an insulation section and a heat conduction section. The tube includes a metal shell and a chamber. The sealed section is formed by rolling the metal shell and making two opposite inner walls of the tube combined closely on the tube that separate the chamber into a first chamber and a second chamber. The insulation section is a hollow chamber including the first chamber. The conduction section includes the second chamber, a capillary and working fluid. Further, the heat conduction device includes a heat dissipating shell, a heating element and a flat heat pipe. The plate heat pipe is disposed in the heat dissipating shell and thermally conducted with the heating element.

Abstract: A lateral surrounding heat pipe is for contacting a heating element while the heating element has a working surface and a sidewall formed around the working surface. The heat pipe includes a heated section and a cooling section. The heated section has a heated surface, which is flat, for contacting and being attached to the sidewall of the heating element. The cooling section is integrally connected to the heated section and extends from the heating element towards any direction.

Abstract: A heat-dissipating device of a portable electronic apparatus includes a heat-conducting plate disposed on a heat-generating element. One end of a heat-conducting pipe is disposed on the heat-conducting plate, and the other end of the heat-conducting pipe is disposed on a surface of a power generator to form a high-temperature source. The opposite surface of the power generator is fixedly disposed on a heat-dissipating body to form a low-temperature source. A heat-dissipating fan is provided on one side of the heat-dissipating body. The positive and negative lines of the heat-dissipating fan are electrically connected to the positive and negative lines of the power generator.