Patent ID: 8686601
Filing Date: 2014-04-01
Classification: H01L,H02M,H05K

Abstract:
1. A power conversion apparatus for vehicle use comprising: a plurality of semiconductor modules in which semiconductor devices are sealed with a resin, and each of which has a module body, an input terminal, and an output terminal; a heat sink of a rectangular parallelepiped shape which has cooling principal planes on opposite surfaces thereof, respectively, for cooling these semiconductor modules; and a plurality of control boards which are electrically connected to the semiconductor modules for controlling the driving of said semiconductor modules; wherein each of said semiconductor modules is arranged in such a manner that its module body has a principal plane in surface contact with one of said cooling principal planes of said heat sink; each of said control boards is arranged in opposition to a surface of said module body at an opposed side of said principal plane thereof; wherein the heat sink is in between the semiconductor modules; and wherein said heat sink has a thickness which is smaller than a width between a first side surface of said module body from which said input terminal protrudes, and a second side surface of said module body opposite to said first side surface.