Patent ID: 6226856
Filing Date: 2001-05-08
Classification: H02K,Y10T

Abstract:
A method of manufacturing a core for rotary electric machines, comprising:forming a plurality of core segments by laminating core division sheets having tees; andobtaining a magnetic circuit by forming a serial core segment assembly by coupling adjacent core segments with one another, bending the serial core segment assembly into an annular form so that yokes of all the adjacent core segments are brought into contact with one another and the yokes of core segments located at both ends of the serial core segment assembly contact each other;wherein a coupling convexity formed on one of the core segments and including a generally planar arc-like tip rotatably engages an adjacent core segment by more than 180 degrees so that an arm connecting a root to a tip of a convexity for coupling the core segments does not deform when forming the serial core segment assembly by engaging a coupling convexity formed on one of the core segments with an adjacent core segment, and when forming the magnetic circuit by bending the serial core segment assembly into an annular form.