Voltage stabilizer of frequency converter

The utility model discloses a voltage stabilizing device of a frequency converter, which comprises a voltage stabilizing device body, the front surface of the voltage stabilizing device body is movably hinged with a box cover, the surface of the box cover is provided with a plurality of ventilation slots, two fixed columns are fixedly arranged in the box cover, and one end part of each fixed column is movably sleeved with two arc-shaped blocks; the utility model discloses a frequency converter's voltage stabilizer, it includes the fixed column, arc-shaped block, limit strip, L-shaped plate, silica gel ferrule and wiring board, be equipped with the fixed column, arc-shaped block, limit strip, L-shaped plate, silica gel ferrule and wiring board, be equipped with the fixed column, arc-shaped block, limit strip, L-shaped plate, silica gel ferrule and wiring board, be equipped with the fixed plate between the inner wall of two adjacent arc-shaped block, be equipped with a plurality of limit slot on one side of two