ELECTRIC POWER CONVERSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve the cooling efficiency.SOLUTION: An inverter 10 includes: a housing base 11a; a body part 10A which is disposed at the front side of the housing base 11a and stores electronic components forming an electric power conversion circuit; a first duct 120A disposed at the rear side of the housing base 11a and connected with a cooling air suction port 121 at one end; a first heat sink 50 which includes a heat sink base 51 and fins 52 and is installed at the rear side of the housing base 11a so that a plate surface direction of the heat sink base 51 is arranged perpendicular to an extension direction of the first duct 120A; and a reactor L which is installed in the heat sink base 51 at the rear side of the housing base 11a and generates heat during energization.SELECTED DRAWING: Figure 4