Frequency converter protection device

The utility model discloses a frequency converter protection device, including the cabinet body, second dust cover, air funnel and circulation water injection pipe, cabinet body lower extreme is fixedwith the collet, first dust cover is installed to the lower extreme of collet, cabinet door edge is provided with sealed the pad, the left and right sides at the cabinet body is fixed to the second dust cover, the upper end of the cabinet body is edge -fixed to have an anti crash pad, the connection piece is all installed to an anti crash pad and the 2nd anti crash pad rear end, the center surface in cabinet body upper end is installed to the air funnel, the upper end of vaulting pole is fixed with the dust guard, the circulation water injection pipe is fixed on the internal portion rear endsurface of cabinet. This frequency converter protection device, air funnel can play the wind effect of pulling out, make the continuous entering of air follow effluvium among the negative -pressure air fan again, and cabinet b