| CPC H02K 3/345 (2013.01) [H02K 3/12 (2013.01)] | 12 Claims |
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1. An armature comprising:
an armature core provided with a plurality of slots extending in a central axis direction; and
a coil portion that includes a plurality of first segment conductors disposed on one side of the armature core in the central axis direction, and a plurality of second segment conductors disposed on another side of the armature core in the central axis direction so as to face the first segment conductors in the central axis direction, and
that is formed by joining the plurality of first segment conductors and the plurality of second segment conductors, in one slot of the slots or on an outer side of the one slot in the central axis direction; and
a joint portion insulating member that has a sheet shape and that insulates joint portions in which the first segment conductor and the second segment conductor are joined between coils adjacent to each other in a radial direction in the one slot, wherein
the joint portion insulating member includes at least two or more facing surface insulating parts that cover facing surfaces of the joint portions being radially adjacent to each other, and a circumferential surface insulating part that is continuous from both end portions of the facing surface insulating parts in a circumferential direction and that covers one circumferential surface of the joint portions adjacent in the radial direction for at least a predetermined distance along the radial direction, and the facing surface insulating parts adjacent in the radial direction are connected by the circumferential surface insulating part in one or another circumferential direction, and
the joint portion insulating member is on the one circumferential surface and not both circumferential surfaces of the joint portions.
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