Electric machine cooling fan

The utility model provides an electric machine cooling fan, it is main includes flabellum and flabellum jump ring, the flabellum is circular slice, and its center sets up the mounting hole, around mounting hole equipartition " L " connected in star on the sector, and the rectangular open slot of equipartition slope on the flabellum circumference, the flabellum jump ring is the arc surface, and thecenter is equipped with mounting hole, equipartition open slot around the mounting hole, the flabellum is located the right side of motor upper bracket, fixes on electric motor rotor's rotor shaft through the flabellum jump ring, and the upper bracket is located between flabellum and the motor stator, simple structure, and simple process, the cost of manufacture is low, and intensity is high. 种电机冷却扇，主要包括扇叶和扇叶卡簧，所述扇叶呈圆形片状，其中心设置安装孔，扇面上绕安装孔均布"L"形凹槽，扇叶圆周上均布倾斜的长方形的开口槽；所述扇叶卡簧呈圆弧面，中心设有安装孔，安装孔周围均布开口槽；所述扇叶位于电机上支架的右侧，通过扇叶卡簧固定在电机转子的转子轴上，上支架位于扇叶与电机定子之间，结构简单，工艺简单，制作成本低，强度高。