Cooling fan for wind power cabin

The utility model relates to the technical field of wind power generation equipment, in particular to a heat dissipation fan for a wind power cabin, which comprises a cabin, a heat dissipation fan body is assembled in the cabin and comprises a motor, a rotating shaft is fixed at the output end of the motor, fan blades are fixed at the end of the rotating shaft, and a sleeve is assembled on the surface of the rotating shaft. A mounting hole is formed in the surface of the sleeve, a tension spring is fixed in the mounting hole, an exhaust assembly is assembled on the sleeve and comprises a rotating disc, the rotating disc sleeves the surface of the sleeve and is fixed to the sleeve, a sliding groove is formed in the surface of the rotating disc, a shielding block is slidably connected in the sliding groove, and the shielding block is fixedly connected with the end of the tension spring; the sliding groove is composed of a solid part and a hollow part, and the cooling fan body and the temperature sensor are used