External rotor fan of the stator assembly. It includes a stator assembly (1), located in stator assembly (1) end cap (2) and is located in the stator assembly (1) inside the bearing housing (3), characterized in that the cover (2) and housing (3) connected by a connecting member (8) is fixed. The assembly will be split bearing housing and cover design, and cover by connecting bearing socket head cap screws, and the use of cast iron housings, cover with aluminum material, die-casting and metalworking improved manufacturability, and to address the die-casting in the end cover center diameter precision is not high and the presence of porosity problems and improve the electromagnetic properties of the motor and machine rigidity, while improving product interchangeability, reduce production costs. |