Rotary electric machine and method of manufacturing same
AssigneeHonda Motor Co., Ltd.
InventorsTakashi Yoshida, Satoru Uchiumi, Hiroki Tahira, Kohei Fujinoto, Masahiko Kamiyama, Kenji Kitamura, Takashi Nakayama
Life of this patent
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Abstract
A rotary electric machine includes a plurality of lead end holding grooves defined in insulators at an outer circumferential surface of a stator core, for guiding respective ends of coil leads therein. The lead end holding grooves are defined by ledges of the insulators. The ledges have respective lands which are convex in widthwise directions of the lead end holding groove.
Claims10
A rotary electric machine comprising:
- a stator having a stator core constructed of an annular array of divided core members;
- wherein each of the divided core members includes a divided iron core, an insulator surrounding a portion of the divided iron core, and a coil lead wound on the divided iron core with the insulator interposed therebetween;
- the insulator has a lead end holding groove defined therein at an outer circumferential surface of the stator core, for guiding an end of the coil lead therein, the lead end holding groove extending in circumferential directions of the stator core;
- and
- the end of the coil lead is placed in an undulating shape along the circumferential directions within the lead end holding groove.
A method of manufacturing a rotary electric machine including a stator having a stator core constructed of an annular array of divided core members, comprising the steps of:
- fitting an insulator over a divided iron core in surrounding relation to a portion of the divided iron core;
- constructing the divided core member by winding a coil lead on the divided iron core with the insulator interposed therebetween;
- producing the stator core by arranging a plurality of the divided core members in the annular array;
- processing an end of the coil lead into an undulating shape along longitudinal directions of the coil lead;
- and
- housing the undulating ends of coil leads in lead end holding grooves defined in the insulators at an outer circumferential surface of the stator core and extending in circumferential directions of the stator core.
A method of manufacturing a rotary electric machine including a stator having a stator core constructed of an annular array of divided core members, comprising the steps of:
- fitting an insulator over a divided iron core in surrounding relation to a portion of the divided iron core;
- constructing the divided core member by winding a coil lead on the divided iron core with the insulator interposed therebetween;
- producing the stator core by arranging a plurality of the divided core members in the annular array;
- housing ends of coil leads in lead end holding grooves defined in the insulators at an outer circumferential surface of the stator core and extending in circumferential directions of the stator core;
- and
- processing the ends of the coil ends into an undulating shape along the circumferential directions of the stator core by displacing at least one of adjacent two of the divided core members along an axial direction of the stator core.
Dependencies are inferred from the claim text.