| 摘要 |
<p>Provided is a power conversion device in which the heat generated at branch terminals of a power semiconductor module can be uniformed between the branch terminals. The power conversion device comprises a capacitor element (2), a power semiconductor module (1) mounted with a power semiconductor element (30), a negative electrode connecting conductive plate (91), and a positive electrode connecting conductive plate (92). At least one of DC terminals is branched into a plurality of branch terminals (10a to 10c) having different resistance values and connected to the negative electrode connecting conductive plate (91). The negative electrode connecting conductive plate (91) has path resistance increasing portions (S5, S6) formed on the respective current paths (L1b, L1c) between a capacitor negative electrode terminal (13) and the other branch terminals (10b, 10c) excluding the branch terminal (10a) which has the largest resistance value among the branch terminals (10a to 10c), said path resistance increasing portions (S5, S6) being used for allowing the heat generated at the branch terminals (10a to 10c) to be uniformed between the branch terminals.</p> |
