Power conversion device

A power conversion device for a vehicle, comprising:

• a power module that includes a switching device and, upon operation of the switching device, converts DC power into AC power to be supplied to an electric machine for driving a vehicle;
• a capacitor module that includes a smoothing capacitor element, an input-side power source terminal for receiving DC power, a plurality of output-side power source terminals for supplying DC power to the power module and a plate-like conductor, constituted with a positive electrode-side conductor and a negative electrode-side conductor in a superimposed state, that allows the smoothing capacitor element and the input-side power source terminal to be electrically connected;
• and
• a noise removal capacitor for removing noise, wherein:
• the noise removal capacitor is built in the capacitor module, and the noise removal capacitor is electrically connected to the input-side power source terminal in a position where a distance between a connection position of the noise removal capacitor and the input-side power source terminal is less than a distance between a connection position of the noise removal capacitor and a first output-side power source terminal of the plurality of output-side power source terminals of the capacitor module;
• the first output-side power source terminal of the plurality of output-side power source terminals has a shortest distance from the input-side power source terminal;
• and
• a distance between a connection position at which the smoothing capacitor element and the plate-like conductor are connected with each other and the first output-side power source terminal is shorter than a distance between a connection position at which the input-side power source terminal and the plate-like conductor are connected with each other and the first output-side power source terminal.