| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for efficiently cooling a stator without enlarging a motor.SOLUTION: A motor includes a flow passage formation part for forming a flow passage in which a coolant flows, between a case body and the stator. The flow passage formation part includes an inlet formation part, an outlet formation part and a core outer circumference cooler formation part. The inlet formation part forms an inlet from which the coolant flows into the flow passage. The outlet formation part forms an outlet from which the coolant flows out of the flow passage. The core outer circumference cooler formation part forms a core outer circumference cooler that is provided between the inlet and the outlet along an outer peripheral surface of a core part. In the motor, a position for the inlet formation part to form the inlet and a position for the outlet formation part to form the outlet are made symmetric with a shaft as a reference.SELECTED DRAWING: Figure 1 |
