Power conversion device

The invention discloses a power conversion device, which can be used to inhibit low installation efficiency of electronic elements and reduce influence of electromagnetic noises. The power conversion device comprises a circuit substrate (1) of a power conversion circuit (2); a screw terminal (10) disposed on the circuit substrate (1) after being separated by a terminal bracket (110); a ferrite iron core (20), which is disposed around a bus (210) from the screw terminal (10) to the power conversion circuit (2). The ferrite iron core (20) can be configured in a way of being superposed with the projection area of the terminal bracket (110) with respect to the circuit substrate (1). 本发明的功率转换装置对电子元器件的安装效率降低的情况进行抑制，并减少电磁噪声的影响。功率转换装置包括：构成有功率转换电路(2)的电路基板(1)；隔着端子托架(110)搭载于电路基板(1)的螺钉端子台(10)；以及围绕从螺钉端子台(10)到功率转换电路(2)为止的母线(210)而进行配置的铁氧体铁心(20)，以与端子托架(110)相对于电路基板(1)的投影区域相重合的方式对铁氧体铁心(20)进行配置。