| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion device that allows being downsized and improving cooling effect.SOLUTION: A power conversion device 1 includes a power conversion section 10 including an electronic component 12 including a semiconductor module 11 and a cooler 2 for cooling the power conversion section 10. The cooler 2 includes a tabular heat exchange portion 30 having a coolant passage 31 through which a coolant flows. The coolant 2 further includes an entrance-side header portion 21 introducing the coolant introduced from a coolant introduction tube into the heat exchange portion 30 and an outlet-side header portion 23 introducing the coolant flowing through the heat exchange portion 30 into a coolant discharge tube. The entrance-side header portion 21 is provided at an end portion 30c of one end side of the heat exchange portion 30, whereas the outlet-side header portion 23 is provided at an end portion 30d of the other end side of the heat exchange portion 30. The entrance-side header portion 21 and the outlet-side header portion 23 have projections 21a and 23a protruding in the normal direction Z of the heat exchange portion 30 with respect to the heat exchange portion 30. |
