US 2026/0221829 A1Published application

Stator

AssigneeToyota Jidosha Kabushiki Kaisha

InventorKengo OHIRA

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Abstract

In a stator of the present disclosure, on a side of a first end of a stator core, each two of leg portions that protrude from a 2·i-th layer of one of a first slot and a second slot spaced five slots apart that lies on one side in a circumferential direction and from a 2·i-1-th layer of the other one are joined together at leading end portions, and each two of leg portions that protrude from a 2·i-th layer of one of a first slot and a second slot spaced five slots apart that lies on the one side in the circumferential direction and from a 2·i+1-th layer of the other one are joined together at leading end portions such that a winding end portion of the 2·i-th layer and the winding start portion of the 2·i+1-th layer are connected to each other.

Claims10

Dependent claims

A stator comprising:

a stator core including a plurality of slots formed at intervals in a circumferential direction so as to each extend in a radial direction;
and
a plurality of segment coils each of which has a pair of leg portions each inserted into a different one of the slots, the segment coils forming a plurality of stator coils by electrically joining leading end portions of each pair of corresponding leg portions of the segment coils, wherein
n = 6·p is met, where p is the number of poles and n is the number of the slots,
the stator coils each include 4·m parallel coils that are connected in parallel, where m is an integer equal to or larger than 1,
an even number of the leg portions are inserted into each of the slots in a row in the radial direction,
the segment coils include a first segment coil, a second segment coil, and a third segment coil,
the leg portions of the first segment coil being inserted into a 2·i-1-th layer of one of two first slots spaced six slots apart that lies on one side in the circumferential direction and into a 2·i-th layer of the other one of the two first slots such that the leg portions protrude from a first end of the stator core, where i is an integer equal to or larger than 1 and i = 1, ..., imax,
the leg portions of the second segment coil being inserted into a 2·i-1-th layer of one of two second slots lying on each side of the two first slots and spaced eight slots apart that lies on the one side in the circumferential direction and into a 2·i-th layer of the other one of the two second slots such that the leg portions protrude from the first end of the stator core, and the second segment coil straddling a corresponding first segment coil, and
the leg portions of the third segment coil being inserted into a 2·i-1-th layer of one of predetermined first slot and second slot spaced seven slots apart that lies on the one side in the circumferential direction and into a 2·i-th layer of the other one of the predetermined first slot and second slot such that the leg portions protrude from the first end of the stator core, and the third segment coil forming a winding start portion in a 2·i+1-th layer, and
on a side of the first end of the stator core,
each two of the leg portions that protrude from the 2·i-th layer of one of a first set including a first slot and a second slot spaced five slots apart that lies on the one side in the circumferential direction and from the 2·i-1-th layer of the other one of the first set are twisted and joined together at leading end portions, and
each two of the leg portions that protrude from the 2·i-th layer of one of a second set including a first slot and a second slot spaced five slots apart that lies on the one side in the circumferential direction and from the 2·i+1-th layer of the other one of the second set are twisted and joined together at leading end portions such that a winding end portion of the 2·i-th layer and the winding start portion of the 2·i+1-th layer are connected to each other.

10 more elements

A stator comprising:

a stator core including a plurality of slots formed at intervals in a circumferential direction so as to each extend in a radial direction;
and
a plurality of segment coils each of which has a pair of leg portions each inserted into a different one of the slots, the segment coils forming a plurality of stator coils by electrically joining leading end portions of each pair of corresponding leg portions of the segment coils, wherein
n = 6·p is met, where p is the number of poles and n is the number of the slots;
the stator coils each include 4·m parallel coils that are connected in parallel, where m is an integer equal to or larger than 1,
an even number of the leg portions are inserted into each of the slots in a row in the radial direction,
the segment coils include a first segment coil, a second segment coil, and a third segment coil,
the leg portions of the first segment coil being inserted into a 2·i-1-th layer of one of two first slots spaced four slots apart that lies on one side in the circumferential direction and into a 2·i-th layer of the other one of the two first slots such that the leg portions protrude from a first end of the stator core, where i is an integer equal to or larger than 1 and i = 1, ..., imax,
the leg portions of the second segment coil being inserted into a 2·i-1-th layer of one of two second slots lying on each side of the two first slots and spaced six slots apart that lies on the one side in the circumferential direction and into a 2·i-th layer of the other one of the two second slots such that the leg portions protrude from the first end of the stator core, and the second segment coil straddling a corresponding first segment coil, and
the leg portions of the third segment coil being inserted into a 2·i-1-th layer of one of predetermined first slot and second slot spaced five slots apart that lies on the one side in the circumferential direction and into a 2·i-th layer of the other one of the predetermined first slot and second slot such that the leg portions protrude from the first end of the stator core, and the third segment coil forming a winding start portion in a 2·i+1-th layer, and
on a side of the first end of the stator core,
each two of the leg portions that protrude from the 2·i-th layer of one of a first set including a first slot and a second slot spaced seven slots apart that lies on the one side in the circumferential direction and from the 2·i-1-th layer of the other one of the first set are twisted and joined together at leading end portions, and
each two of the leg portions that protrude from the 2·i-th layer of one of a second set including a first slot and a second slot spaced seven slots apart that lies on the one side in the circumferential direction and from the 2·i+1-th layer of the other one of the second set are twisted and joined together at leading end portions such that a winding end portion of the 2·i-th layer and the winding start portion of the 2·i+1-th layer are connected to each other.

10 more elements

Dependencies are inferred from the claim text.

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Abstract

A stator comprising:

a stator core including a plurality of slots formed at intervals in a circumferential direction so as to each extend in a radial direction;
and
a plurality of segment coils each of which has a pair of leg portions each inserted into a different one of the slots, the segment coils forming a plurality of stator coils by electrically joining leading end portions of each pair of corresponding leg portions of the segment coils, wherein
n = 6·p is met, where p is the number of poles and n is the number of the slots,
the stator coils each include 4·m parallel coils that are connected in parallel, where m is an integer equal to or larger than 1,
an even number of the leg portions are inserted into each of the slots in a row in the radial direction,
the segment coils include a first segment coil, a second segment coil, and a third segment coil,
the leg portions of the first segment coil being inserted into a 2·i-1-th layer of one of two first slots spaced six slots apart that lies on one side in the circumferential direction and into a 2·i-th layer of the other one of the two first slots such that the leg portions protrude from a first end of the stator core, where i is an integer equal to or larger than 1 and i = 1, ..., imax,
the leg portions of the second segment coil being inserted into a 2·i-1-th layer of one of two second slots lying on each side of the two first slots and spaced eight slots apart that lies on the one side in the circumferential direction and into a 2·i-th layer of the other one of the two second slots such that the leg portions protrude from the first end of the stator core, and the second segment coil straddling a corresponding first segment coil, and
the leg portions of the third segment coil being inserted into a 2·i-1-th layer of one of predetermined first slot and second slot spaced seven slots apart that lies on the one side in the circumferential direction and into a 2·i-th layer of the other one of the predetermined first slot and second slot such that the leg portions protrude from the first end of the stator core, and the third segment coil forming a winding start portion in a 2·i+1-th layer, and
on a side of the first end of the stator core,
each two of the leg portions that protrude from the 2·i-th layer of one of a first set including a first slot and a second slot spaced five slots apart that lies on the one side in the circumferential direction and from the 2·i-1-th layer of the other one of the first set are twisted and joined together at leading end portions, and
each two of the leg portions that protrude from the 2·i-th layer of one of a second set including a first slot and a second slot spaced five slots apart that lies on the one side in the circumferential direction and from the 2·i+1-th layer of the other one of the second set are twisted and joined together at leading end portions such that a winding end portion of the 2·i-th layer and the winding start portion of the 2·i+1-th layer are connected to each other.

10 more elements