| 摘要 |
PROBLEM TO BE SOLVED: To secure a function for cooling a plurality of exothermic components.SOLUTION: A first recess 11 for housing a DC reactor and a second recess 12 for housing an AC reactor are molded on the left and right in a housing with a gap H. A first fin F1, a second fin F2 and a third fin F3 are provided corresponding to a switch element IPM on the outside of the housing, the first recess 11 and the second recess 12, respectively. The switch element IPM is disposed on the upper side of the gap H. The first recess 11 is disposed on the lower side than the second recess 12. The first fin F1 extends substantially vertically from the upper side to the lower side of the housing, with the bottom end reaching the vicinity of the second recess 12. The second fin F2 and the third fin F3 are configured substantially in parallel to the first fin F1. The top ends of the second fin F2 and the third fin F3 are made to extend to the position of the first fin F1 on the upper side of the housing, and a fan FAN for blowing air from the lower side of the first fin F1 toward the first fin F1 is disposed. |
