| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator core obtained by molding magnetic powder, constituted by fitting and coupling together an inner core having a plurality of teeth and an outer core, wherein cracking in the fit portion between the inner core and the outer core is suppressed. SOLUTION: The stator core 6 is constituted by fitting (press fitting) together the inner core 8 and the outer core 9 both formed by molding magnetic powder. At the outer end of each tooth 10 of the inner core 8 in the radial direction, a coupling projected portion 10a is formed which is circularly protruded outward in the radiation direction as viewed from the axial direction. Inside the outer core 9, coupling recessed portions 9a are formed which is circularly recessed outward in the radial direction as viewed from the axial direction so that the coupling recessed portions 9a and the coupling projected portions 10a are fitted together. COPYRIGHT: (C)2004,JPO&NCIPI |
