Patent ID: 11901792
Assignee: NIDEC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A bus bar assembly applicable to a stator including a two-system connection configuration, the bus bar assembly comprising:
a bus bar holder on one side in an axial direction of a stator core located around a center axis of the stator; and
plate-shaped conductor bus bars fixed to the bus bar holder; wherein
the bus bars include:
a first U-phase bus bar and a second U-phase bus bar defining a U-phase bus bar group;
a first V-phase bus bar and a second V-phase bus bar defining a V-phase bus bar group; and

a first W-phase bus bar and a second W-phase bus bar defining a W-phase bus bar group;
each of the bus bars includes a main line portion extending in a plane perpendicular or substantially perpendicular to a center axis in a posture in which a plate surface is oriented in the axial direction, and a connection terminal portion connected to an end portion of the main line portion; and
with a first virtual line passing through the center axis of the stator when viewed in the axial direction as a symmetry axis;
the main line portion of the first U-phase bus bar and the main line portion of the second U-phase bus bar have a shape line-symmetric to each other;
the main line portion of the first V-phase bus bar and the main line portion of the second V-phase bus bar have a shape line-symmetric to each other; and
the main line portion of the first W-phase bus bar and the main line portion of the second W-phase bus bar have a shape line-symmetric to each other.