Power converter

A power converter comprising:

• a stack assembly comprising:
• a plurality of semiconductor modules;
• and
• a plurality of cooling pipes for cooling the semiconductor modules, the semiconductor modules and the cooling pipes being stacked in a predetermined first direction as a stack direction to constitute the stack assembly;
• and
• a direct-current busbar assembly,
• each of the semiconductor modules comprising:
• a converter component comprising at least one semiconductor element for power conversion;
• and
• a pair of direct-current terminals connected to the at least one semiconductor element and configured to protrude from the converter component in a predetermined second direction serving as a protrusion direction,
• the direct-current busbar assembly comprising:
• a pair of near and far direct-current busbars serving as a current path between a direct-current power source and the semiconductor modules;
• and
• an insulation member interposed between a first portion of the near direct-current busbar and a second portion of the far direct-current busbar in the protrusion direction, the first and second portions of the respective near and far direct-current busbars respectively serving as first and second overlap portions that are overlapped with each other via the insulation member in the protrusion direction,
• the first overlap portion of the near direct-current busbar being located closer to the converter component in the protrusion direction than the second overlap portion of the far direct-current busbar is,
• the direct-current terminals including:
• a near direct-current terminal;
• and
• a far direct-current terminal,
• the near direct-current terminal being arranged to be closer to the first and second overlap portions than the far direct-current terminal is in a predetermined third direction as an arrangement direction perpendicular to both the stack direction and the protrusion direction,
• the near and far direct-current busbars being joined to the respective near and far direct-current terminals,
• the far direct-current busbar being configured to be joined to the far direct-current terminals of the respective semiconductor modules while bypassing the near direct-current terminals of the respective semiconductor modules.