Abstract: A method of manufacturing a heat dissipation device includes: providing a tube, the tube defining a head end, a tail end and a chamber, the head end being closed and the tail end being opened, the chamber being connected outside via the tail end; providing a module for receiving a part of the tube therein, the tail end being positioned out of the module; providing a molding material and injecting the liquid molding material into the module, the molding material being made of metal, a melting point of the molding material being lower than that of the tube; solidifying the molding material to form a base, the part of the tube received and fixed in the tube; removing the module; injecting a working medium into the tube via the tail end; vacuumizing the chamber of the tube; and sealing the tail end of the tube.

Abstract: A cooling cup includes a cup body, a plurality of heat pipes and a heat sink. The cup body includes a bottom board and a surrounding wall. The surrounding wall is a tubular structure and defines an upper opening and a lower opening. The bottom board envelops the lower opening. Each heat pipe includes an evaporating section and a condensing section. The evaporating section thermally contacts the cup body. The heat sink thermally contacts the condensing section of the heat pipe.

Abstract: A heat dissipation device includes a base and a fastener. The fastener includes a clasping portion, an elastic member placed and a first gasket. The clasping portion includes a fixing part, an operating part, and a connecting part connected to the fixing part and the operating part. The connecting part defines a slip groove. The first gasket interferingly fits the slip groove of the clasping portion. The elastic member is placed around the connecting part of the clasping portion and is arranged between the operation part and the first gasket. The first gasket abuts the base after the fixing part extending through the base.

Abstract: A heat dissipation device includes a base and a fastener. The fastener includes a clasping portion, an elastic member placed and a first gasket. The clasping portion includes a fixing part, an operating part, and a connecting part connected to the fixing part and the operating part. The connecting part defines a slip groove. The first gasket interferingly fits the slip groove of the clasping portion. The elastic member is placed around the connecting part of the clasping portion and is arranged between the operation part and the first gasket. The first gasket abuts the base after the fixing part extending through the base.