Abstract: A static motor cooling device for a centrifugal blower or axial fan assembly is provided. The blower or fan assembly includes an electric motor, a motor housing for enclosing the electric motor, a drive shaft operably coupled to the electric motor and extending outwardly from the motor housing, and a blower wheel or fan blade operably connected to the drive shaft. The blower or fan includes a blower or fan housing to which the motor housing is at least partially mounted. The motor cooling device comprises a shroud and at least one mounting provision. The motor cooling device is mounted over the motor housing and configured to mate with the blower or fan housing for passively directing a portion of the air being drawn into the blower or fan assembly over the motor housing for cooling the electric motor.

Abstract: The present invention relates to a fan guard which utilizes an associated electric motor body for increased support and rigidity. The fan guard includes an inner housing member which mounts to an electric motor body. A plurality of circumferentially spaced reinforcing ribs is each connected at an inner end to the inner housing member. Each reinforcing rib extends radially outward therefrom. A plurality of spaced fan guard ribs is connected at an inner end to the inner housing member and extends radially outward therefrom. A rim extends circumferentially around the plurality of fan guard ribs and is connected to an outer end of each of the fan guard ribs.