Stator assembly and motor with the stator assembly

Abstract

The invention discloses a stator assembly and a motor with the stator assembly. The stator assembly includes a stator core and stator windings. The stator core has a plurality of stator slots, and the stator winding is formed by a plurality of U-shaped conductor segments, and the U-shaped conductor segments include first-type conductor segments and second-type conductor segments. The stator winding includes the first winding wire of phase A and the second winding wire of phase A The first winding wire of phase A includes the first sub-circuit of phase A and the second sub-circuit of phase A, the first sub-circuit of phase A and the second sub-circuit of phase A The second winding line of the A phase includes the third sub-circuit of the A phase and the fourth sub-circuit of the A phase, and the third sub-circuit and the fourth sub-circuit of the A phase are wound in parallel. At the corresponding welding ends of the second sub-winding section of the first winding wire of A phase and the seventh sub-winding section of the second winding wire of A phase, the welding end spans (y-1) stator slots, thus The distance at the welding end can be reduced, the welding connection can be easily realized, the conductor area can be reduced, and the skin effect can be effectively reduced.

Description

technical field [0001] The invention relates to the field of motors, in particular to a stator assembly and a motor with the stator assembly. Background technique [0002] The application number "200780022091.7" in the Chinese Invention Patent Application Publication is titled "Electrodes and wiring between multiple sets of segmented hairpin windings". Two winding sets are used, and the 1st and 2nd layers are different from the 3rd and 4th layers. Layers 1 and 2 are the first winding sets, and layers 3 and 4 are the second winding sets. [0003] In the above-mentioned 4-layer winding, the 1st and 2nd layers and the 3rd and 4th layers are respectively wound, and two kinds of winding sleeves are used, the structure is complex, there are relatively many types of coils, and the process is relatively complicated; the lead-out line and the star point line are all on the insertion side That is, the forming end occupies a large space; the distribution of the three-phase star-point ...

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned 4-layer winding, the 1st and 2nd layers and the 3rd and 4th layers are respectively wound, and two kinds of winding sleeves are used, the structure is complex, the types of coils are relatively large, and the process is relatively complicated; the lead-out line and the star point line are all on the insertion side That is, the forming end occupies a large space; the distribution of the three-phase star-point line and the lead-out line is relatively scattered, and it is not easy to connect them

From the analysis of the electrical connection, the winding form has a high voltage difference between different layers in the same slot. When used under high voltage, the layers are easy to break down, resulting in a short circuit and causing the motor to fail.

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