| 摘要 |
<p>A motor consists of; a stator (1) that has a stator coil (3), and a stator core (2) that is arranged or formed annularly; and a rotor (5) that is located at the inner circumferential side of the stator core (2), and is rotatable in regard to the stator (1). The rotor (5) is composed by having a rotor core (6) installed onto the outer circumference of a rotor rotation-axis (7), through a core-support section (8). The rotor core (6) is composed by having a plurality of steel plates (6a) placed side by side in the axial direction, and in a stacked state, and there are gaps (13) provided between some of the adjacent steel plates (6a). A lubricating path (21) for cooling oil, and which elongates in the axial direction, is installed inside the rotor rotation-axis (7), and a communicatively-connecting path (24), which communicatively-connects this lubricating path (21) with the gaps (13), is installed on the rotor rotation-axis (7), across the core-support section (8).</p> |
