Liquid-gas circulation heat-dissipating unit

Abstract: A liquid-gas circulation heat-dissipating unit includes a body having a hollow portion, a capillary structure evenly coated on an inner wall of the hollow portion and configured to soak up working fluid, and a regulating portion disposed in the body and communicating with the hollow portion. The hollow portion is filled with the working fluid of an amount more than a greatest possible amount adsorbed on the capillary structure. The regulating portion is stored with an excess of the working fluid. As a result, quantity tolerance between the working fluid of the greatest possible amount adsorbed on the capillary structure and the actually introduced working fluid increases. Accordingly, the capillary structure is adsorbed with the greatest possible amount of the working fluid and thus achieves optimal efficiency of heat dissipation.