| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power conversion system which enables reduction of the number of components and downsizing and easily achieves improvement of the sealability.SOLUTION: An electric power conversion system 1 includes: a semiconductor lamination unit 2 where semiconductor modules 21 and cooling pipes 31 are laminated; and a case 6. The case 6 includes a rear wall part 61 and a front wall part 62 and a pair of side wall parts 63. The rear wall part 61 has an opening hole 611 formed by an outer shape in which an outer shape of a cooler 3 is stored. The semiconductor lamination unit 2 includes: a closing member 4 which is joined to a rear cooling pipe 311 disposed at the rear side and closes the opening hole 611; and a refrigerant introduction pipe 51 and a refrigerant discharge pipe 52 which extend from the closing member 4 to the rear side. The refrigerant introduction pipe 51, the refrigerant discharge pipe 52, and the closing member 4 are connected adhering to each other. A seal part causes the closing member 4 and the case 6 to adhere to each other. |
