Electric power converter and method for manufacturing the same

An electric power converter comprising:

• a laminated semiconductor unit formed by laminating semiconductor modules and cooling pipes that cool the semiconductor modules, the laminated semiconductor unit having a length in a laminating direction, and one end of the length is defined as a first end, while an opposite end is defined as a second end;
• a beam member that supports the laminated semiconductor unit from the second end in a laminating direction;
• a frame that accommodates the laminated semiconductor unit, and has an insertion opening in a second end side thereof in the laminating direction into which the laminated semiconductor unit can be inserted;
• and
• a plurality of pressing plates that are accommodated between a wall portion disposed in a first end side of the frame and the laminated semiconductor unit, the pressing plates pressing the laminated semiconductor unit in a direction from the first end toward the second end;
• wherein,
• the plurality of pressing plates are laminated in the laminating direction with each other, and are compressed and elastically deformed in the laminating direction;
• and
• the beam member is fixed to the frame.