Cooling structure for a shunt resistor and a inverter device used, which have the same

摘要

A cooling structure for a shunt resistor has a semiconductor switching element (1), the on a component side a circuit board (7) is mounted, a shunt resistor (4) of the on a solder side of the printed circuit board (7) is mounted on the basis of a radiator (9) for delivering through the semiconductor switching element (1) and the shunt resistor (4) generated heat and an insulating material (8) connected between the shunt resistor (4) and the radiator (9) is inserted and a high thermal conductivity, on.