Patent ID: 8854816
Filing Date: 2014-10-07
Classification: H05K

Abstract:
1. A combination comprising: a unit case for an inverter unit, the unit case having a front case and a rear case, the front case containing a circuit section including a power semiconductor module, and the rear case having a wind channel containing a cooling fin assembly for the power semiconductor module and at least one cooling fan ventilating cooling air through the cooling fin assembly in the wind channel and discharging the cooling air from a top of the unit case; and a water-proof cover made of a molded resin and disposed over the unit case to surround the top of the unit case, said water-proof cover forming a ventilating path for the cooling air discharged from the unit case and exhausting paths downward along side surfaces of the unit case, wherein the water-proof cover includes: said ventilation guide is spaced from the top portion, and includes two side panels inclining relative to the rear side portions, and a rear side panel inclining toward the front portion.