Abstract: A mounting device for chips has a heat sink and at least one clamp. The heat sink has at least one conductive side, two ends, multiple chip units and two connecting bases. The chip units are arranged on the at least one conductive side. The connecting bases are formed on the ends of the heat sink. The at least one clamp is mounted across the at least one conductive side of the heat sink and has two ends, a middle sheet, multiple pressing tabs and two connecting arms. The pressing tabs extend from the middle sheet to press the chip units against the conductive side of the heat sink. The connecting arms are formed respectively on the ends of the clamp and are mounted respectively on the connecting bases.

Abstract: A power supply is mounted in a case for a computer and has a shell, a blower assembly and multiple electrical components. The shell has a rear surface, a heat sink chamber, an electrical component chamber, an air inlet and an air outlet. The chambers have front end communicating with each other. The air inlet and the air outlet are formed through the rear surface of the shell. The blower assembly is mounted in the shell and is adjacent to the rear surface of the shell. The electrical components are mounted in the electrical component chamber and generate heat when the computer operates. The heat-dissipating method of the power supply is to extract air from outside the computer case into the shell to dissipate the heat generated by the electrical components. Using air at room temperature from outside the case is much more efficient to cool down the power supply.

Abstract: A mounting device for chips has a heat sink and at least one clamp. The heat sink has at least one conductive side, two ends, multiple chip units and two connecting bases. The chip units are arranged on the at least one conductive side. The connecting bases are formed on the ends of the heat sink. The at least one clamp is mounted across the at least one conductive side of the heat sink and has two ends, a middle sheet, multiple pressing tabs and two connecting arms. The pressing tabs extend from the middle sheet to press the chip units against the conductive side of the heat sink. The connecting arms are formed respectively on the ends of the clamp and are mounted respectively on the connecting bases.

Abstract: An power switching device includes a base with input wires and output wires electrically connected to the base and opposite to the input wires, multiple conducting tubes electrically connected to and orthogonally mounted on the base, and multiple conducting plates each having holes to selectively allow an extension of some of the conducting tubes and screw holes selectively defined to correspond to and allow a bottom face of each of the screw holes to abut free ends of the rest of the conducting tubes such that screws are able to threadingly extend from the screw holes and into the free ends of the conducting tubes abutted to the bottom faces of the screw holes to secure engagement between conducting plate and the conducting tubes.

Abstract: An power switching device includes a base with input wires and output wires electrically connected to the base and opposite to the input wires, multiple conducting tubes electrically connected to and orthogonally mounted on the base, and multiple conducting plates each having holes to selectively allow an extension of some of the conducting tubes and screw holes selectively defined to correspond to and allow a bottom face of each of the screw holes to abut free ends of the rest of the conducting tubes such that screws are able to threadingly extend from the screw holes and into the free ends of the conducting tubes abutted to the bottom faces of the screw holes to secure engagement between conducting plate and the conducting tubes.