Division core of stator core, stator having the same, manufacturing method and manufacturing apparatus of divided core of stator core

摘要

Problem to be solved: to provide a split core of a stator core capable of improving material yield and dimensional accuracy, and improving the performance of a rotary electric machine, and a method and apparatus for manufacturing the same.The split core 110 has a flange 114 at the tip of the teeth portion 112, so that the magnetic flux flowing into the teeth portion 112 can be effectively utilized and the leakage magnetic flux is suppressed.Further, in the core punching step, the split core 41 of the yoke portion 111 can be disposed alternately so that the radial side surface 111a of the yoke 111 is opposed to the radial side surface 112a of the teeth 112.Therefore, the material yield and the performance of the rotary electric machine can be improved.Further, since the shaving processing is performed using the area punched in the core punching process, the size of the die core can be reduced and the dimensional accuracy of the divided core is improved.Diagram