POWER CONVERTER AND METHOD FOR MANUFACTURING POWER CONVERTER

摘要

A power converter includes a plurality of power cards, a plurality of coolers and a pressure member. Each of the power cards houses a semiconductor element. The plurality of coolers is laminated with the power cards. The cooler includes a body, a gasket and a metal plate. The body is made of resin, and has an opening that is provided in a side surface of the cooler that faces the adjacent power card. A surface on one side of the metal plate is configured to close the opening through the gasket, and the other surface faces the power card. The pressure member is configured to apply a pressure in a laminating direction on a lamination unit. The opening is sealed by the metal plate by pressure applied by the pressure member on the lamination unit.

主权项

1. A power converter comprising:
a plurality of power cards, each of the power cards housing a semiconductor element; a plurality of coolers laminated with the power cards, each of the coolers facing the power card, the cooler including:
a body which is made of resin, the body having an opening that is provided in a side surface of the cooler that faces the adjacent power card;a gasket; anda metal plate, in which a surface on one side configured to close the opening through the gasket, and the other surface faces the power card; and a pressure member configured to apply a pressure in a laminating direction on a lamination unit, the plurality of power cards and the plurality of coolers being laminated in the lamination unit, and the opening being sealed by the metal plate by pressure applied by the pressure member on the lamination unit.