Patent ID: 7929301
Filing Date: 2011-04-19
Classification: H05K

Abstract:
1. A power converter, comprising: a housing; a power conversion chamber disposed within the housing, the power conversion chamber containing power circuitry configured to convert input power to an output power; a ventilation chamber defining a vent having a vent opening, wherein the vent places the ventilation chamber in fluid communication with an ambient environment, and further defining an aperture that places the ventilation chamber in fluid communication with the power conversion chamber, said aperture being defined by a partition wall that separates the ventilation chamber from the power conversion chamber and said aperture being surrounded by a flange that extends from the partition wall into the ventilation chamber; and a guard plate disposed within the ventilation chamber at a location adjacent the aperture and spaced from the housing, such that air can flow between the vent and the power conversion chamber via the aperture, while liquid is deterred from flowing from the vent through the aperture, wherein the vent opening extends through the housing at a location such that the guard plate is disposed between the vent opening and the aperture.