CLOSED ELECTRIC MACHINE Russian patent published in 2021 - IPC H02K5/12 H02K9/26 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, it can be used in all types of closed electric machines operated in environmental conditions with high relative humidity and dustiness. Hollow elements in the form of pipes are inserted into the radial holes on both sides of the shaft, which are filled with a dehumidifier and have radial holes at the surface of the shaft.
EFFECT: technical result is providing forced air circulation through the dehumidifier. In a closed electric machine, the shaft has radial holes at the ends.

1 cl, 2 dwg