Franklin Electric Co., Inc.
Motor drive with moisture control features

Abstract:

A motor control unit including an inverter, a fan to blow air and thereby cool the inverter, and an enclosure configured to maintain the inverter in a dry condition. The enclosure includes a back wall, a bottom wall having a ventilation grid, with the fan positioned adjacent the ventilation grid to draw air therethrough, a top cover member, a central member extending between the top cover member and the bottom wall, and a skirt below the bottom wall defining an at least partially enclosed volume surrounding the ventilation grid, and a droplet diverter to prevent that air drawn by the fan carries water droplets into the enclosure.