Electric generator fan

The utility model relates to a radiating fan, in particular to an electric generator fan. A lug boss is arranged in the center of a chassis of the fan, an axle hole is arranged in the center of the lug boss, clamping and fixing devices are arranged at the periphery of the axle hole, 19 pieces of vertically installed blades are uniformly distributed at the periphery of the chassis surface of the chassis of the fan, the diameter Phi of the chassis of the fan is 149mm, the head ends and the tail ends of the blades are distributed in the radiating direction of the semidiameter of the chassis of the fan, a center line segment of a cross section of the blade connecting the head end and the tail end of the blades is a straight line segment plus an arc segment, the length L of the straight line segment is 25mm, and the semidiameter R of the arc segment is 15.66mm. With the adoption of the electric generator fan of the technical scheme of the utility model, wind force of the fan can be increased, the connection tightness of the fan can be improved, and the heat-conductive effect can be improved.