Electric power converter

An electric power converter comprising:

• a plurality of power modules that contains switching elements for electric power conversion and is stacked along a first direction;
• a capacitor that is arranged adjacent to the plurality of power modules in a second direction perpendicular to the first direction;
• and
• a positive bus bar and a negative bus bar that connect the plurality of power modules and the capacitor, wherein
• each of the power modules has a positive terminal and a negative terminal provided on a side facing the capacitor, the positive terminal and the negative terminal being aligned in a third direction perpendicular to both the first direction and the second direction,
• a leading end of the positive terminal and a leading end of the negative terminal are parallel to the side,
• the capacitor includes a positive electrode on one end surface and a negative electrode on the other end surface in the third direction,
• the positive bus bar includes a positive base plate that is joined to the positive electrode and a positive flange that is bent from the positive base plate in the third direction and is joined to the positive terminals of the plurality of power modules,
• the negative bus bar includes a negative base plate that is joined to the negative electrode and a negative flange that is bent from the negative base plate in the third direction and is joined to the negative terminals of the plurality of power modules, and
• the positive flange and the negative flange extend in directions away from the capacitor along the third direction.