Patent ID: 8503209
Filing Date: 2013-08-06
Classification: H01L,H02M,H05K

Abstract:
1. A power conversion apparatus comprising, a channel case having a cooling channel built therein; and a semiconductor module having a built therein an upper and lower arm series circuit of an inverter circuit, wherein the semiconductor module comprises: the series circuit body comprises: an opening that links the space between the first heat radiating member and the second heat radiating member with the outside channel case is formed in the case part and the case part is affixed to the channel case, thereby placing the first heat radiating member and the second heat radiating member in the cooling channel; the positive electrode-side terminal and the negative electrode-side terminal protrude in the same direction while being disposed outside of the case part through the opening in the case part; the positive electrode-side terminal and the negative electrode-side terminal of the semiconductor module are so disposed as to face each other; an alternating current terminal of the semiconductor module is disposed at a position that is offset relative to the positive electrode-side terminal and the negative electrode-side terminal in a direction parallel to a flow of cooling water; the semiconductor module is held by the channel case by being inserted into the cooling channel in a direction perpendicular to an axis that is parallel to the flow of the cooling water; and at least one power semiconductor device for the upper arm and at least one power semiconductor device for the lower arm are so disposed as to be offset in the insertion direction.