FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering, in particular to the node (1) of the three-phase stator of the drive motor of the electric pump. The stator assembly (1) contains three sets of segments (Si, j) placed in an annular arrangement around the stator axis (R) extending in the axial direction. Each set of segments (Si, j) contains n ≥ 2 segments (Si, j), with each specified segment (Si, j) containing a coil (3) having a first end (5) and a second end (7) of the coil wire, and a plurality of 3n-3 connecting wires (Wi, k) placed on the axial front side (9) of the segments (Si, j). Each connecting wire (Wi, k) connects two coils (3) of the corresponding set of segments (Si, j) in series, while the first intermediate segment (Si, j) and the second intermediate segment (Si, j) of the other two sets of segments (Si, j) are placed in a circular direction between two connected coils (3) of the specified set of segments (Si, j). At least 3n-5 connecting wires (Wi, k) pass through the first intermediate segment (Si, j) at the first radial distance (r1) to the stator axis (R) and through the second intermediate segment (Si, j) at the second radial distance (r2) to the axis (R) of the stator. The second radial distance (r2) is greater than the first radial distance (r1).
EFFECT: improving the manufacturability of the stator.
21 cl, 11 dwg
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Authors
Dates
2022-09-07—Published
2021-12-17—Filed