STATOR FOR ROTATING ELECTRICAL MACHINE

摘要

A stator includes an annular stator core, a stator winding, and an insulating sheet member. In the stator core, slots are circumferentially arrayed. The stator winding includes conductor segments having oblique portions formed by open end portions being circumferentially twisted. The open end portions are inserted into the slots from one of two axial-direction sides and extend towards another one. The insulating sheet member is interposed between an inner wall surface of the slot and the conductor segment. The insulating sheet member is rolled into a cylindrical shape along the inner wall surface of the slot, and includes an overlapping portion and a slack portion. In the overlapping portion, two circumferential-direction end portions overlap each other. The overlapping portion is disposed on one of two radial-direction sides of each of the slots. The slack portion is disposed on another one of two radial-direction sides of each of the slots.

主权项

1. A stator for a rotating electrical machine, comprising:
an annular stator core in which a plurality of slots are formed to be arrayed in a circumferential direction of the stator core; a stator winding that comprises a plurality of conductor segments having oblique portions formed by open end portions of the conductor segments being twisted in the circumferential direction, the open end portions being inserted into the slots from one of two axial-direction sides of the stator core and extending towards another one of the two axial-direction side of the stator core, and terminals of the oblique portions being joined to one another; and an insulating sheet member that is interposed between an inner wall surface of each of the slots and each of the conductor segments, the insulating sheet member is rolled into a cylindrical shape along the inner wall surface of each of the slots, the insulating sheet member including
an overlapping portion in which two circumferential-direction end portions of the insulating sheet member overlap each other, the overlapping portion being disposed on one of two radial-direction sides of each of the slots in a radial direction of the stator core, anda slack portion that is disposed on another one of the two radial-direction sides of each of the slots in the radial direction.