A segmented core motor stator comprising: a segmented core connected body constructed by connecting a plurality of segmented cores in an annular shape, and a first ring fixed to an annular first end face of the segmented core connected body; wherein each of the segmented cores is constructed from a plurality of laminated plates that are laminated together; wherein a first dowel, formed by pressing the laminated plates at identical points in identical directions along a lamination direction of the plates, is provided to each of the laminated plates of each of the segmented cores; wherein the plurality of laminated plates of each of the segmented cores are connected and fixed in a laminated state by clamping and fixing the first dowels of the adjoining laminated plates to each other in the lamination direction; wherein a first laminated plate (12) and a second laminated plate (12) are positioned on both sides, in the lamination direction, in each of the segmented cores; wherein the first dowel of each first laminated plate (12) protrudes from an outside end face of said first laminated plate (12); wherein the first end face of the segmented core connected body is defined by the outside end face of the first laminated plate (12); wherein first dowel holes into which each of the first dowels can be pressure-fitted are formed in the first ring at locations corresponding to the first dowels protruding from the outside end face of the first laminated plate (12) in each of the segmented cores connected in an annular shape; wherein the first ring is connected and fixed to the segmented core connected body by pressure-fitting and fixing the first dowels of each first laminated plate (12) in the corresponding first dowel holes; and wherein the first ring is an insulating ring formed from an insulating material. a segmented core connected body constructed by connecting a plurality of segmented cores in an annular shape, and a first ring fixed to an annular first end face of the segmented core connected body; wherein each of the segmented cores is constructed from a plurality of laminated plates that are laminated together; wherein a first dowel, formed by pressing the laminated plates at identical points in identical directions along a lamination direction of the plates, is provided to each of the laminated plates of each of the segmented cores; wherein the plurality of laminated plates of each of the segmented cores are connected and fixed in a laminated state by clamping and fixing the first dowels of the adjoining laminated plates to each other in the lamination direction; wherein a first laminated plate (12) and a second laminated plate (12) are positioned on both sides, in the lamination direction, in each of the segmented cores; wherein the first dowel of each first laminated plate (12) protrudes from an outside end face of said first laminated plate (12); wherein the first end face of the segmented core connected body is defined by the outside end face of the first laminated plate (12); wherein first dowel holes into which each of the first dowels can be pressure-fitted are formed in the first ring at locations corresponding to the first dowels protruding from the outside end face of the first laminated plate (12) in each of the segmented cores connected in an annular shape; wherein the first ring is connected and fixed to the segmented core connected body by pressure-fitting and fixing the first dowels of each first laminated plate (12) in the corresponding first dowel holes; and wherein the first ring is an insulating ring formed from an insulating material.