STATOR FOR ROTARY ELECTRIC MACHINE AND MANUFACTURING APPARATUS THEREOF
A stator for a rotary electric machine includes a stator coil configured such that a tip end of a conductor segment bent in a stator circumferential direction is joined to a tip end of another conductor segment in the same phase. A conductive material is exposed from the tip ends of the conductor segments, and a distance between the tip ends in different phases and adjacent to each other in the stator circumferential direction is larger than a distance between the tip ends in the same phase and adjacent to each other in the stator circumferential direction.
1 . A stator for a rotary electric machine, the stator comprising:
a stator core including slots provided at a plurality of positions in a circumferential direction; and
a stator coil configured such that a tip end of a conductor segment projecting from a stator-core axial end surface of each of the slots and bent in the circumferential direction of the stator core is joined to a tip end of another conductor segment in the same phase,
a conductive material being exposed from the tip ends of the conductor segments, and a distance between the tip ends in different phases and adjacent to each other in the circumferential direction of the stator core being larger than a distance between the tip ends in the same phase and adjacent to each other in the circumferential direction of the stator core.
2 . The stator for the rotary electric machine, according to claim 1 , wherein
a distance between the conductor segments in different phases and adjacent to each other in the circumferential direction of the stator core is larger than a distance between the conductor segments in the same phase and adjacent to each other in the circumferential direction of the stator core.
3 . A manufacturing apparatus for a stator for a rotary electric machine, the manufacturing apparatus comprising:
a jig configured to bend, in a stator-core circumferential direction, conductor segments projecting from stator-core axial end surfaces of slots provided in a stator core,
the jig including a first jig configured to bend one conductor segment out of the conductor segments in the same phase and adjacent to each other in the stator-core circumferential direction, and a second jig configured to bend the other conductor segment,
the second jig being configured to bend the other conductor segment such that a tip end of the other conductor segment approaches a tip end of the one conductor segment at a time when the first jig bends the one conductor segment.
4 . The manufacturing apparatus for the stator for the rotary electric machine, according to claim 3 , wherein
the first jig includes a protrusion configured to bend the one conductor segment; and
the protrusion includes a tilting surface configured to abut with the tip end of the one conductor segment and to tilt and bend the one conductor segment in the circumferential direction, and a position defining surface configured to define a position of the tip end of the one conductor segment after the one conductor segment is bent.
5 . A stator for a rotary electric machine, the stator comprising:
a stator core including slots provided at a plurality of positions in a circumferential direction; and
a stator coil configured such that a tip end of a conductor segment projecting from a stator-core axial end surface of each of the slots and bent in the circumferential direction of the stator core is joined to a tip end of another conductor segment in the same phase,
a distance between the tip ends in different phases and adjacent to each other in the circumferential direction of the stator core being larger than a distance between the tip ends in the same phase and adjacent to each other in the circumferential direction of the stator core.