Waterproof case of frequency converter

The utility model discloses a waterproof cabinet of a frequency converter. The computer case comprises a case body and a waterproof cover. Wherein the case main body comprises a bottom plate, a plurality of side plates fixedly connected to the bottom plate and a top plate arranged at the tops of the side plates, the adjacent side plates are fixedly connected through connecting pieces, the shape of the top plate is matched with the shape of the fixedly connected side plates, the top plate is connected with the side plates through threads, and sealing strips are arranged between the top plate and the side plates; wherein one side plate is in a radiating fin shape, two adjacent side plates of the side plate are provided with a plurality of wiring ports, the upper edge of the side plate provided with the wiring ports is provided with a sliding groove along the vertical edge, a sliding block is arranged in the sliding groove, and the sliding block is fixedly connected with a waterproof cover; according to the util