Rotating electric machine
AssigneeHitachi Automotive Systems, Ltd.
InventorsTakayuki Koizumi, Hiroshi Hamano, Yasuyuki Saito, Yousuke Umesaki, Yuji Kanoh, Genzou Iwaki
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Abstract
The efficiency of inserting a coil conductor into a slot of a stator core is improved in the present invention. Included are a rotor and a stator. The stator includes a stator core formed with a plurality of slots formed at a predetermined depth in a radial direction and arranged while spaced apart from each other in a circumferential direction and stator winding having a coil conductor inserted in each of the slots. A plurality of protrusions are formed in each of the slots of the stator core toward a space into which the coil conductor is inserted.
Claims6
A rotating electric machine, comprising:
- a rotor pivotally supported by a rotating shaft;
- and
- a stator arranged on a circumferential surface of the rotor with a minute gap interposed therebetween, wherein
- the stator includes a stator core formed with a plurality of slots formed at a predetermined depth in a radial direction and arranged while spaced apart from each other in a circumferential direction and stator winding having a coil conductor inserted in each of the slots,
- a plurality of protrusions are formed in each of the slots of the stator core toward a space into which the coil conductor is inserted,
- the plurality of protrusions form a plurality of partition regions into which the coil conductors are inserted in such a manner as to be adjacent to each other in each of the slots, and
- the protrusions of the plurality of partition regions are formed while protruding between the coil conductors such that a distance between the coil conductors inserted in each of the partition regions is more than or equal to a predetermined distance.
A rotating electric machine, comprising:
- a rotor pivotally supported by a rotating shaft;
- a stator arranged on a circumferential surface of the rotor with a minute gap interposed therebetween, wherein
- the stator includes a stator core formed with a plurality of slots formed at a predetermined depth in a radial direction and arranged while spaced apart from each other in a circumferential direction and stator winding having a coil conductor inserted in each of the slots,
- a plurality of protrusions are formed in each of the slots of the stator core toward a space into which the coil conductor is inserted;
- and
- an insulating member arranged between the coil conductor and the protrusions, wherein
- each of the slots has a pair of side surfaces extending in a direction perpendicular to a circumferential surface of the stator core,
- the protrusions are included in each of the pair of side surfaces,
- the insulating member is a slot insulating sheet arranged to cover the respective side surfaces together with the respective protrusions,
- the slot insulating sheet has a protruding portion protruding to the outside from one end surface of the stator core in an axial direction, and
- the protruding portion has an end portion folded to a side opposite to a side on which the stator core is arranged.
Dependencies are inferred from the claim text.