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 iron core and a stator winding. The stator iron core has a plurality of stator slots. The stator winding includes A-phase windings, and the A-phase windings include sequentially A plurality of first sub-winding sections, a second sub-winding section, a plurality of third sub-winding sections, a fourth sub-winding section, a bridging line, a fifth sub-winding section, and a plurality of sixth sub-winding sections 1. One seventh sub-winding section and multiple eighth sub-winding sections. The initial end of the A-phase winding is connected to the A-phase lead-out line, and the terminal end of the eighth sub-winding section is connected to the A-phase star point line. At the corresponding welding ends of the second sub-winding section and the seventh sub-winding section, the welding ends span (y-1) stator slots, thereby reducing the distance at the welding ends, and for the entire winding of phase A The process can reduce the distance between the A-phase star point line and the A-phase lead-out line, so that it is easy to weld the connection.

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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