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US 2026/0229947 A1Published application
Rotating electrical machine
AssigneeAisin Corporation
InventorsShunsuke KOYABU, Hiroaki YABUI
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Abstract
A rotating electrical machine includes a stator core having a slot, a stator coil wound around the stator core and formed by a plurality of coil pieces, each of the plurality of coil pieces including a conductor exposed portion that is not covered with an insulating film, the conductor exposed portions being joined via a joint portion, and an insulating material portion provided so as to cover the conductor exposed portion.
Claims10
A rotating electrical machine comprising:
- a stator core having a slot;
- a stator coil wound around the stator core and formed by a plurality of coil pieces, each of the plurality of coil pieces including a conductor exposed portion that is not covered with an insulating film, the conductor exposed portions being joined via a joint portion;
- and
- an insulating material portion provided so as to cover the conductor exposed portion, wherein
- each of the plurality of coil pieces includes a slot insertion portion inserted into the slot, an oblique portion extending in a circumferential direction and an axial direction from the slot insertion portion, and an axial end portion extending in the axial direction from the oblique portion via a bent portion,
- the conductor exposed portion includes the axial end portion and an end portion of the bent portion on a side close to the axial end portion,
- the joint portion is located at an end portion on an axially outer side of the axial end portion,
- the oblique portion extending from one slot toward one side in the circumferential direction and the oblique portion extending from the other slot toward the other side in the circumferential direction intersect as viewed in a radial direction, and
- the insulating material portion is formed only in a range axially outer side of an intersection range of paired oblique portions as viewed in the radial direction in a range axially outer side of the stator core.
6 more elements
A rotating electrical machine comprising:
- a stator core having a slot;
- a stator coil wound around the stator core and formed by a plurality of coil pieces, each of the plurality of coil pieces including a conductor exposed portion that is not covered with an insulating film, the conductor exposed portions being joined via a joint portion;
- and
- an insulating material portion provided so as to cover the conductor exposed portion, wherein
- each of the plurality of coil pieces includes a slot insertion portion inserted into the slot and an oblique portion extending in a circumferential direction and an axial direction from the slot insertion portion,
- the conductor exposed portion includes a distal end portion on an axially outer side of the oblique portion,
- the joint portion is located at the distal end portion,
- the oblique portion extending from one slot toward one side in the circumferential direction and the oblique portion extending from the other slot toward the other side in the circumferential direction intersect as viewed in a radial direction, and
- the insulating material portion is formed only in a range axially outer side of an intersection range of paired oblique portions as viewed in the radial direction in a range axially outer side of the stator core.
6 more elements
Dependencies are inferred from the claim text.