Outlet box for air-cooled generator

The utility model relates to an outlet box for an air-cooled generator. The outlet box comprises a steel plate, a support plate, an outer cover plate and circular rings. The steel plate is in the form of rectangular connection. The support plate is vertically arranged on the steel plate. The outer cover plate is arranged on the support plate and is vertically connected with the support plate. The plurality of groups of circular rings are arranged on the outer cover plate. The outlet box of the utility model has a simple and stable structure. The natural vibration frequency of the outlet box and the working frequency of the generator are staggered, thereby guaranteeing normal operation of the generator and improving the production efficiency and the economic benefits.