Patent ID: 7816786
Filing Date: 2010-10-19
Classification: F28F,H01L

Abstract:
1. A power conversion system comprising: a power semiconductor element for converting DC power to AC power by a switching operation thereof; a radiator base comprising a first member which is opposite a first principal surface of the power semiconductor device in which the DC power flows, a second member which is opposite a second principal surface of the power semiconductor device in which the DC flows, and a third member which connects the first and second members and is disposed opposite a face of the radiator base in which an opening is formed; and a frame having a hollow formed therein for accommodating coolant flow; wherein the power semiconductor device is installed into the radiator base, and is insert-molded in an installing space of the radiator base by resin; the third member is installed into the hollow in contact with a bottom face of the hollow of the frame, so that a first space is formed between the first member of the radiator base and an inside wall of the hollow of the frame, and a second space is formed between the second member of the radiator base and an inside wall of the hollow of the frame; and the coolant flows in the first and second spaces, and contacts directly with the first and second members of the radiator base.