Patent ID: 8514590
Filing Date: 2013-08-20
Classification: H01L,H05K

Abstract:
1. A power conversion apparatus comprising: electronic components constituting a power conversion circuit; a cooler for cooling at least some of the electronic components; a case housing the electronic components and the cooler; and a frame attached to an interior of the case; wherein the at least some of the electronic components and the cooler are fixed to and integrated with the frame to form an internal unit, the internal unit is fixed within the case through the frame, the frame has such a shape that at least some of the electronic components constituting the internal unit are disposed inside the frame and such that the frame surrounds the at least some of the electronic components and the cooler on at least four sides, the internal unit includes, as the at least some of the electronic components constituting the internal unit disposed inside the frame, semiconductor modules each incorporating switching elements and provided with control terminals through which control currents to control the switching elements are inputted and a control circuit board for generating the control currents, the cooler includes therein coolant passages, the internal unit further includes a stacked body of the coolant passages and the semiconductor modules, the coolant passages and the semiconductor modules being stacked alternately in the stacked body in a stacking direction parallel to a plane of the frame, the control terminals have a shape projecting in a height direction perpendicular to the stacking direction and the plane of the frame, the frame is provided with board fixing sections to which the control circuit board is fixed, the board fixing sections projecting in a direction of projection of the control terminals, and each of the board fixing sections has a board abutment surface for abutment with the control circuit board at a position closer to the frame in the height direction than tips of the control terminals.