| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cooling mechanism for electric motor that can securely and efficiently cool an electric motor. <P>SOLUTION: The cooling mechanism for electric motor is characterized in that a planetary gear-side end 47c1 of a top plate 47c passes through an electric motor-side end of a planetary gear 22B, and is arranged more on the side of the planetary gear 22B than a plane F1 of rotation orthogonal to a straight line O as an axis of rotation of the planetary gear 22B, and an electric motor-side end 47c2 of the top plate 47c passes through a planetary gear-side end of a second electric motor 2B, and is arranged more on the side of the second electric motor 2B than a perpendicular plane F2 orthogonal to the straight line O as the axis of rotation of the planetary gear 22B, a position Q1 where the top plate 47c with cross the plane F1 of rotation being arranged above a position Q2 where the top plate 47c cross with the perpendicular plane F2. <P>COPYRIGHT: (C)2013,JPO&INPIT |
