Electric rotating machine

摘要

The electric rotating machine includes a stator winding constituted of conductor segments each having a pair of in-slot portions and a coil end section projecting from both axial ends of a stator core. The coil end section includes a joint-side end portion having a skew portion intersecting with another one of the conductor segments at an axial end of the stator core. The skew portion is formed with a joint end portion at an extremity thereof, the joint end portion being formed with a conductor exposed portion where an inner conductor is exposed and joined to a conductor exposed portion of another conductor segment. A joint area between the joint end portions and a vicinity thereof are covered by an insulating resin member. The insulating resin member is thicker at a portion covering the conductor exposed portions than at a portion covering other than the conductor exposed portions.

主权项

1. An electric rotating machine comprising:
a rotor; and a stator including a stator core disposed facing the rotor and a stator winding wound on the stator core, wherein the stator winding is formed of a plurality of conductor segments having in-slot portions accommodated in slots of the stator core and a coil end section projecting axially from the slots and extending circumferentially, the conductor segment includes a turn portion, a skew portion intersecting with other conductor segments at the coil end section and an extreme portion at an extremity of the skew portion, the coil end section includes a joint end portion at which conductor exposed portions at the extremities of the plurality of the conductor segments are connected together and other portions other than the joint end portion, the conductor exposed portions including a joint portion at which the joint end portions are joined together and the other portions close thereto are covered by an insulating resin member, the insulating resin member covering the conductor exposed portions is thicker than the insulating resin member covering the other portions, the insulating resin member having a first surface that contacts the coil end section and a second surface that does not contact the coil end surface, and a step is provided between the insulating resin member covering the conductor exposed portions and the insulating resin member covering the other portions, the step being formed on the second surface of the insulating resin member, such that the step does not contact the coil end surface.