Power conversion apparatus

A power conversion apparatus comprising:

• a semiconductor element;
• a cooler cooling the semiconductor element;
• a circuit board electrically connected to the semiconductor element;
• and
• a laminated bus-bar electrically connected to the semiconductor element, with the semiconductor element and the laminated bus-bar being disposed above the cooler, and the circuit board being further disposed above the semiconductor element and the laminated bus-bar, to exhibit a power converting function by a switching operation of the semiconductor element,
• wherein the laminated bus-bar has a configuration in which plate-like bus-bars are laminated via an insulating material to define a pair of bus-bars, and the pair of bus-bars is disposed vertically so that a width direction thereof is set in a vertical direction,
• and wherein the laminated bus-bar includes a pair of voltage measuring terminals that is correspondingly branched from a part of the pair of bus-bars to extend toward the circuit board to be electrically connected thereto, and the pair of voltage measuring terminals is arranged symmetrically with respect to the pair of bus-bars to extend upward toward the circuit board, while extending in an intersecting direction intersecting with the pair of bus-bars, to be electrically connected to the circuit board.