Motor having air path of stator, or fan cleanable, and cleaning system of motor

A motor comprising:

• a stator having a proximal end and a distal end;
• a housing which holds the stator, the housing having a proximal end and a distal end;
• a fan arranged outside the stator near the stator's distal end, the fan generating a cooling gas flow that flows in a direction from the proximal end of the stator to the distal end of the stator;
• a fan cover mounted on the distal end of the housing so as to house the fan;
• an air path provided at the stator or the housing, and including an inlet located at the proximal end of the stator or the housing and an outlet located at the distal end of the stator or the housing for the cooling gas flow, the air path having an air path axial centerline passing through the inlet and the outlet;
• a first cleaning hole formed at the stator, the housing, or the fan cover, and extending axially from a first opening which faces the outlet at a position downstream of the cooling gas flow to a second opening which opens to an outside, the first cleaning hole including a portion extending axially from the first opening, the portion having a center line parallel to the air path axial centerline;
• and
• a removable plug located in the first cleaning hole which can be removed in order to provide compressed air into the first cleaning hole to perform a cleaning operation.