Rotary electric machine stator and manufacturing method therefor

A rotary electric machine stator comprising:

• an annular stator core in which slots are arranged circumferentially;
• and
• a three-phase alternating-current winding that is mounted to said stator core,
• wherein:
• said three-phase alternating-current winding comprises distributed winding bodies that are each constituted by a jointless continuous conductor wire that is coated with insulation, said distributed winding bodies being mounted to said stator core circumferentially at a pitch of one slot so as to be equal in number to a total number of said slots;
• a first conductor terminal of said conductor wire that constitutes said winding bodies extends outward at a first axial end of said stator core from a radially outermost position inside said slots, and a second conductor terminal of said conductor wire extends outward at said first axial end of said stator core from a radially innermost position inside said slots;
• a plurality of small coil groups each constitute a series connected body of a plurality of said winding bodies in which said first conductor terminals of winding bodies and said second conductor terminals of winding bodies that are subject to connection therewith are connected;
• first conductor terminals that constitute respective first ends of said plurality of small coil groups among said first conductor terminals are disposed so as to be spaced apart from each other circumferentially around a radially outer side of a circular arc-shaped region that extends circumferentially around a coil end of said three-phase alternating-current winding that is formed at said first axial end of said stator core;
• second conductor terminals that constitute respective second ends of said plurality of small coil groups among said second conductor terminals are arranged so as to be spaced apart from each other circumferentially around a radially inner side of said circular arc-shaped region;
• said three-phase alternating-current winding is configured by connecting said first conductor terminals and said second conductor terminals that are disposed in said circular arc-shaped region using connecting units;
• electric power supplying terminals of said three-phase alternating-current winding are constituted by said first conductor terminals and said second conductor terminals that are disposed in said circular arc-shaped region;
• a number of parallel phase windings in said three-phase alternating-current winding is n, where n is a natural number that is greater than or equal to one;
• an angular range of said circular arc-shaped region is less than or equal to (180×n) electrical degrees;
• and
• said second conductor terminals that constitute said electric power supplying terminals are positioned between adjacent first conductor terminals when viewed from a radially outer side.