POWER CONVERSION DEVICE

This power conversion device is provided with: a DC bus that transmits a DC current; a filter capacitor element connected to the DC bus; and a magnetic core which is formed of a single member and has a through-hole through which the DC bus bar is inserted, the through-hole being formed in the magnetic core such that a first inner diameter along the width direction of the DC bus bar is longer than a second inner diameter orthogonal to the first inner diameter. 电力变换装置具备：直流母线，其传递直流电流；滤波器用电容器元件，其与所述直流母线连接；以及磁性体芯，其具有供所述直流母线插通的贯通孔且由单一的构件形成，其中，所述贯通孔以沿着所述直流母线的宽度方向的第一内径比与所述第一内径正交的第二内径长的方式形成在所述磁性体芯中。