| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power conversion system which prevents stress from being exerted on a refrigerant introduction tube and a refrigerant discharge tube.SOLUTION: An electric power conversion system 1 includes: a semiconductor unit 10 including a semiconductor module 2 and a cooler 3; and a case 5 housing the semiconductor unit 10. The cooler 3 includes: a heat exchange part 31 where heat exchange is conducted between a refrigerant and the semiconductor module 2; a refrigerant introduction tube 321 which introduces the refrigerant into the heat exchange part 31; and a refrigerant discharge tube 322 which discharges the refrigerant from the heat exchange part 31. The refrigerant introduction tube 321 and the refrigerant discharge tube 322 are inserted into through holes 53 which are formed in the case 5 penetrating through the case 5. Tip parts of the refrigerant introduction tube 321 and the refrigerant discharge tube 322, which protrude to the exterior of the case 5, are connected with a pair of connectors 4. Each connector 4 includes: a fixing part 41 fixed to the case 5; and a cylindrical part 42 which communicates with the refrigerant introduction tube 321 or the refrigerant discharge tube 322. |
