Patent ID: 9007795
Filing Date: 2015-04-14
Classification: H01L,H02M

Abstract:
1. A power conversion device, wherein the device comprises a plurality of semiconductor modules each having a plate-shaped body incorporated with a switching element, wherein the plurality of semiconductor modules include a positive module connected to a positive side of a power supply and a negative module connected to a negative side of the power supply; the positive module includes a positive terminal connected to the power supply and a first intermediate terminal connected to the negative module, the positive terminal and the first intermediate terminal being projected from the body; the negative module includes a negative terminal connected to the power supply and a second intermediate terminal connected to the positive module, the negative terminal and the second intermediate terminal being projected from the body; the first intermediate terminal and the second intermediate terminal are connected to each other via an intermediate bus bar; the positive module and the negative module are arranged in a state where main surfaces of the respective bodies are opposed to each other, in a module unit composed of the positive module and the negative module adjacent to each other and connected to each other via the intermediate bus bar; the positive terminal, the first intermediate terminal, the negative terminal and the second intermediate terminal of both the positive and negative modules are projected into the same or a mutually opposite direction, the direction being a projecting direction perpendicular to a facing direction of the both; and a first vector directed to the first intermediate terminal from the positive terminal of the positive module and a second vector directed to the negative terminal from the second intermediate terminal of the negative module have respective vector components in a perpendicular direction that is perpendicular to the facing direction, the vector components being directed to mutually opposite directions when the module unit is seen from the projecting direction.