A power converter device, comprising: a first double-sided electrode module; a second double-sided electrode module; a heat dissipating base that sandwiches heat dissipation surfaces of the first double-sided electrode module and the second double-sided electrode module via an insulation layer; a jacket to which the heat dissipating base is fixed; a capacitor module that constitutes a smoothing circuit for inhibiting fluctuation in DC voltage; a positive electrode conductor plate and a negative electrode conductor plate that transmit electric power between the capacitor module and the first double-sided electrode module and the second double-sided electrode module, characterized in that: the first double-sided electrode module includes a DC positive electrode wiring board that is connected to a first power semiconductor device via a metal joint member; the second double-sided electrode module includes an AC terminal and a DC negative electrode wiring board that is connected to a second semiconductor device via a metal joint member; further characterized in an output wiring that transmits alternating current from the second double-sided electrode module, wherein the positive electrode conductor plate is connected to the DC positive electrode wiring board, the negative electrode conductor plate is connected to the DC negative electrode wiring board, the positive electrode conductor plate and the negative electrode conductor plate are stacked one on top of another and integrated together by a resin, and constitute an electric power wiring unit that fixes the output wiring to the resin, and the electric power wiring unit is contacted with the jacket. a first double-sided electrode module; a second double-sided electrode module; a heat dissipating base that sandwiches heat dissipation surfaces of the first double-sided electrode module and the second double-sided electrode module via an insulation layer; a jacket to which the heat dissipating base is fixed; a capacitor module that constitutes a smoothing circuit for inhibiting fluctuation in DC voltage; a positive electrode conductor plate and a negative electrode conductor plate that transmit electric power between the capacitor module and the first double-sided electrode module and the second double-sided electrode module, characterized in that: the first double-sided electrode module includes a DC positive electrode wiring board that is connected to a first power semiconductor device via a metal joint member; the second double-sided electrode module includes an AC terminal and a DC negative electrode wiring board that is connected to a second semiconductor device via a metal joint member; further characterized in an output wiring that transmits alternating current from the second double-sided electrode module, wherein the positive electrode conductor plate is connected to the DC positive electrode wiring board, the negative electrode conductor plate is connected to the DC negative electrode wiring board, the positive electrode conductor plate and the negative electrode conductor plate are stacked one on top of another and integrated together by a resin, and constitute an electric power wiring unit that fixes the output wiring to the resin, and the electric power wiring unit is contacted with the jacket. the first double-sided electrode module includes a DC positive electrode wiring board that is connected to a first power semiconductor device via a metal joint member; the second double-sided electrode module includes an AC terminal and a DC negative electrode wiring board that is connected to a second semiconductor device via a metal joint member; further characterized in an output wiring that transmits alternating current from the second double-sided electrode module, wherein the positive electrode conductor plate is connected to the DC positive electrode wiring board, the negative electrode conductor plate is connected to the DC negative electrode wiring board, the positive electrode conductor plate and the negative electrode conductor plate are stacked one on top of another and integrated together by a resin, and constitute an electric power wiring unit that fixes the output wiring to the resin, and the electric power wiring unit is contacted with the jacket.