| 摘要 |
A cooling structure of a generator motor includes: a rotor holder; a rotor core; a first blade; and a second blade, wherein the second blade includes a recessed coolant holding portion, provided on an outer circumference of the second blade on an opposite side to the rotor core and opening inward in the radial direction, for collecting a coolant, and a drain hole radially penetrating an outer circumference of the coolant holding portion for draining the coolant collected in the coolant holding portion. |
