Search International and National Patent Collections
|1. (WO2018047229) POWER CONVERSION DEVICE, COOLING STRUCTURE, POWER CONVERSION SYSTEM, AND POWER SUPPLY DEVICE|
|Title:||POWER CONVERSION DEVICE, COOLING STRUCTURE, POWER CONVERSION SYSTEM, AND POWER SUPPLY DEVICE|
A power conversion device having a power conversion unit comprising a single-phase inverter on a secondary side of a resonant converter having DC input. The single-phase inverter output for a plurality of power conversion units is connected in series to constitute a power conversion unit group. Each phase of a three-phase alternating current is formed using three sets of the power conversion unit groups housed inside a power conversion device case. The plurality of power conversion units constituting the power conversion unit group are arranged along the longitudinal direction of the power conversion device case and the three sets of power conversion unit groups are arranged on an upper level, middle level, and lower level, respectively, in the height direction of the power conversion device case. The power conversion device is characterized by: one end side of the power conversion device case in the longitudinal direction being an output terminal for the three sets of power conversion unit groups; and the terminals of the three sets of power conversion unit groups having a common connection on the other end side of the power conversion device case in the longitudinal direction.