Electric motor

An electric motor includes a stator and a rotor assembly received in the stator. The rotor assembly includes a shaft, a rotor core, a rotor mold molded to the rotor core, and a fan. A coupler is formed on the rotor mold and a corresponding mounting hub is formed on the fan. After the rotor molding is molded to the rotor core, the shaft is pressed into the rotor core, and after the shaft is pressed into the rotor core, the fan is affixed to the rotor molding by connecting the coupler and the mounting hub. 一种电动马达，包括定子和接纳在该定子中的转子组件。该转子组件包括轴、转子铁芯、模制到该转子铁芯的转子模制件、以及风扇。联接器形成在该转子模制件上，并且相应的安装毂形成在该风扇上。在该转子模制件模制到该转子铁芯之后，该轴被压入该转子铁芯中，并且在该轴被压入该转子铁芯中之后，通过连接该联接器和该安装毂，该风扇被固附至该转子模制件。