FRONTAL ELECTRIC MACHINE OF ENCLOSED DESIGN WITH EXTERNAL AIR COOLING Russian patent published in 2008 - IPC H02K9/04 

FIELD: electricity.

SUBSTANCE: invention is attributed to electric engineering, specifically to enclosed electric machines of frontal design with one stator and one rotor. Frontal electric machine of enclosed design with external air cooling includes housing consisting of two shields, toroidal stator and rotor cores with windings, shaft, bearing assemblies and blower. The machine contains ribbed from outside shields; on the outer surface of shield opposite to protruding shaft end, bracket is installed on which electric motor with blower is mounted which blower is placed into chamber bounded at electric motor side by protective blower plate with holes to pass through ambient cooling air, external part of the shield and shield ribs enveloping the blower with some clearance. To arrange flow of ambient cooling air in the direction of machine shields, cylindrical air distributor enveloping the shields is mounted.

EFFECT: improvement of cooling conditions for heat-producing elements and its operation reliability enhancement.

1 dwg