the first end plate includes,

a first refrigerant discharge hole (first refrigerant discharge hole 42a) communicating with the second refrigerant flow path hole, and

a first groove portion (first groove portion 44a) which supplies refrigerant supplied from the refrigerant flow path to the first refrigerant flow path hole and does not supply the refrigerant to the first refrigerant discharge hole and the second refrigerant flow path hole, and

the second end plate includes,

a second refrigerant discharge hole (second refrigerant discharge hole 42b), and

a second groove portion (second groove portion 44b) which supplies the refrigerant supplied from the first refrigerant flow path hole to the second refrigerant flow path hole and supplies the refrigerant to the second refrigerant discharge hole.

According to (1), the first groove portion of the first end plate supplies the refrigerant supplied from the refrigerant flow path to the first refrigerant flow path hole without supplying the refrigerant to the first refrigerant discharge hole and the second refrigerant flow path hole. Therefore, the rotor core can be cooled from the inside by the refrigerant flowing through the first refrigerant flow path hole.