High-power frequency converter and box body thereof

The utility model belongs to the technical field of frequency converters, and discloses a high-power frequency converter and a box body thereof, which comprises a main body frame, a left side mounting partition plate is fixedly mounted on the left side of the lower end of the main body frame, and a right side mounting partition plate is fixedly mounted on the right side of the main body frame. And a rectifying unit located above the left side mounting partition plate is fixedly mounted at the left end of the lower end of the main body frame. According to the utility model, wind resistance loss caused by first passing through the capacitor is avoided through cold air of the heat dissipation unit, the heat dissipation efficiency of the heat dissipation device is improved, the bus capacitor has an independent ventilation heat dissipation air channel, the service life of the capacitor is ensured, and meanwhile, the bus capacitor is spatially isolated from the inversion cavity, thereby avoiding dust caused by exte