| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor drive device for a vehicle capable of ensuring heat radiation performance and avoiding unwanted stress, and improving the assemblability and the flexibility of mounting. <P>SOLUTION: The motor drive device 1 for a vehicle is configured, in such a way that a power conversion control section 4 for drive a motor 2 is arranged outside a housing 3 for housing the motor 2. The power conversion control section 4 has a power conversion substrate 5, having a switching element 51 mounted thereon, and a substrate cover 6 for covering the power conversion substrate 5. In the power conversion substrate 5, the switching element 51 is mounted on one surface 501 of a side opposite to the housing 3, in a state of sandwiching a spacer 7. The spacer 7 has a spacer-extending portion 71, and the spacer extending portion 71 is provided, to extend from the one surface 501 in the power conversion substrate 5 up to another surface 502 of a side opposite to the substrate cover 6. The power conversion substrate 5 is attached on the substrate cover 6, in a state of sandwiching the spacer-extending portion 71. <P>COPYRIGHT: (C)2008,JPO&INPIT |
