| 摘要 |
A method for making a stator for an electric machine which is simple, relatively inexpensive and permits mass production of motors having excellent operating characteristics including accurate centering of the rotor for silent and vibration-free function and efficient cooling of the windings and bearings. The method consists of the steps of supporting casings in a position surrounding the winding heads in sealing relation with opposite ends of a lamination stack, positioning a mandrel in the stator cavity having locating means engageable with the stator stack and means on its outer surface to define axial and radial locating positions for bearing shields. The casings, laminations and mandrel define a pair of enclosed cavities at opposite ends of the stator stack. A curable molding material is injected into the cavities by means of centrifugal force and thereafter the molding material is cured to complete the stator assembly. |
