| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an in-wheel motor which can easily dissipate heat generated in a motor in an in-wheel motor part including a wheel bearing, a motor and a reduction gear. <P>SOLUTION: Of the loss of the motor B including copper loss and iron loss, the loss of the stator is set at ≥50% in a rotation number range L for generating the maximum torque at a low speed rotation of the motor B and a high-output region LH of ≥50% of the maximum torque. The motor B has a cooling medium flow path 45 for cooling a coil part 28 of the stator 23 with a cooling liquid, and the copper loss is ≥25% in the loss of the motor B. <P>COPYRIGHT: (C)2011,JPO&INPIT |
