Abstract: A fastening device is used for connecting a first and a second fan together. The two fans each have an upper flange and a lower flange and a cylindrical body interconnecting the upper flange and the lower flange. The fastening device includes a plate-shaped pad and two resilient portions respectively extending perpendicularly from two opposite sides of the pad. The two resilient portions respectively extend through the lower flange of the first fan and the upper flange of the second fan, pressing against the first fan and the second fan toward each other. The pad is sandwiched between the lower flange of the first fan and the upper flange of the second fan.

Abstract: A light source device includes a first heat dissipation structure, an LED module, a heat energy convertor and a fan. The first heat dissipation structure includes a heat dissipation base, a first fin group attached on a top surface of the heat dissipation base. The LED module is attached on a bottom surface of the heat dissipation base of the first heat dissipation structure. The heat energy convertor is thermally connected to the heat dissipation base of the first heat dissipation structure through heat pipes, and configured for changing heat energy generated by the LED module into kinetic energy. The fan is disposed over the first fin group and driven by the heat energy convertor.

Abstract: A liquid-cooling device includes a heat exchanger defining a cavity therein and a liquid-guiding component received in the cavity. The liquid-guiding component includes a body and a fixing portion extending from the body and fixed to the heat exchanger. A first liquid passage is defined through the body and a second liquid passage is formed between the body and an inner sidewall of the heat exchanger surrounding the cavity. The first liquid passage is in fluid communication with the second liquid passage via a bottom of the cavity. An outlet and an inlet are formed at an end of the liquid-guiding component and in fluid communication with the first and second liquid passages. Liquid flows in the cavity of the heat exchanger via the first liquid passage and has a sufficient contact with the inner sidewall of the heat exchanger.

Abstract: The disclosure relates to an evaporator and a loop heat pipe employing it. The evaporator includes a shell having an evaporation chamber and a compensation chamber defined therein, a partition being received in the shell and partitioning the evaporation chamber and the compensation chamber, and a wick structure being adhered to an inner wall of the shell corresponding to the evaporation chamber and extending through the partition and into the compensation chamber. The loop heat pipe includes the evaporator mentioned above, a pipe connecting two opposite ends of the evaporator to form a closed loop and a working medium contained in the closed loop.

Abstract: A light source device includes a first heat dissipation structure, an LED module, a heat energy convertor and a fan. The first heat dissipation structure includes a heat dissipation base, a first fin group attached on a top surface of the heat dissipation base. The LED module is attached on a bottom surface of the heat dissipation base of the first heat dissipation structure. The heat energy convertor is thermally connected to the heat dissipation base of the first heat dissipation structure through heat pipes, and configured for changing heat energy generated by the LED module into kinetic energy. The fan is disposed over the first fin group and driven by the heat energy convertor.

Abstract: A fastening device is used for connecting a first and a second fan together. The two fans each have an upper flange and a lower flange and a cylindrical body interconnecting the upper flange and the lower flange. The fastening device includes a plate-shaped pad and two resilient portions respectively extending perpendicularly from two opposite sides of the pad. The two resilient portions respectively extend through the lower flange of the first fan and the upper flange of the second fan, pressing against the first fan and the second fan toward each other. The pad is sandwiched between the lower flange of the first fan and the upper flange of the second fan.