| 主权项 |
1. A cooling structure of a rotating electric machine, said cooling structure comprising:
a rotor core formed of laminated steel plates, said rotor core being provided with a through hole passing therethrough in a direction of a rotation axis and being provided inside said through hole with a coolant passage through which a coolant circulates; and a resin molding portion molding said rotor core with resin, said resin molding portion having a cover portion covering an outer peripheral side of said coolant passage, and an inner wall on the outer peripheral side of said coolant passage being formed by a surface of said cover portion, wherein said rotor core has a first end face and a second end face located on opposite sides of said rotor core, each of the first end face and the second end face extending in a plane orthogonal to the direction of the rotation axis, said coolant passage being open to said first end face and said second end face, said cooling structure further comprises a coolant supply portion supplying the coolant onto said first end face, and said cover portion is configured to have a thickness that is greater on a side of said first end face than on a side of said second end face. |
