Warming fan

The utility model discloses a warm ventilation fan, and belongs to the technical field of ventilators, the warm ventilation fan comprises a mounting seat, a shell, a fixing plate, a mounting ring and a ventilation motor, and further comprises a protection device, the shell is arranged on the surface of the mounting seat, the fixing plate is fixedly connected with the surface of the fixed shell, the mounting ring is fixedly connected with the surface of the fixing plate, and the ventilation motor is fixedly connected with the inner wall of the mounting ring; the driving end of the ventilation motor is in transmission connection with the inner wall of the shell, the protection device is arranged on the surface of the shell and comprises a protection plate, the protection plate is in sliding connection with the inner wall of the shell, one side edge of the protection plate is fixedly connected with a rack, and the rack is in sliding connection with the inner wall of the shell. According to the device, the protec