High-voltage switch cabinet capable of rapidly dissipating heat

The utility model discloses a fast heat dissipation high voltage switch cabinet, which comprises a shell, a patch board and a vacuum circuit breaker, one side of the shell is provided with a box door, the two sides of the shell are internally provided with heat dissipation mechanisms, one side of the shell is provided with a wire inlet structure, and a fixing structure comprises a lower fixing seat, a bottom plate, a screw rod, a knob and an upper fixing seat. The bottom plates are fixed to the top end of the interior of the shell, and lower fixing bases are fixed to the top ends of the bottom plates. According to the cable arrangement device, cables are placed at the top of the lower fixing seat, so that the cables are neatly placed and are not easy to wind, the rotary knob is rotated to push the upper fixing seat to move downwards to press and fix the cables, and the cables are neatly arranged in the device, so that the cable arrangement function of the device is realized, scattered cables are convenient to