Patent ID: 8773851
Filing Date: 2014-07-08
Classification: H01L,H05K

Abstract:
1. A power converting apparatus configured to convert alternating current power into direct current power or convert direct current power into alternating current power, the power converting apparatus comprising: a housing base having a first surface and a second surface; a main body on the first surface of the housing base; an air duct through which cooling air flows on the second surface of the housing base; a pair of upright air duct walls on the second surface of the housing base, the pair of air duct walls extending in a direction from an upwind side to a downwind side; a first heat generator and a second heat generator disposed on the second surface of the housing base in series in the direction from the upwind side to the downwind side in the air duct with the first heat generator on the upwind side and the second heat generator on the downwind side; and at least one protrusion between the first heat generator and the second heat generator to protrude from at least one of the pair of air duct walls toward a center portion of an air-flowing space for the cooling air, wherein the at least one protrusion is a protrusion wall that protrudes in a fixed relationship from the at least one of the pair of air duct walls towards the center portion of the air-flowing space along a plane that is substantially perpendicular to the direction from the upwind side to the downwind side.