Stator assembly and motor with same

Abstract

The invention discloses a stator assembly and a motor with the same. The stator assembly comprises a stator core and a stator winding. The stator core is provided with a plurality of stator slots, thestator winding is formed by a plurality of U-shaped conductor sections, and the U-shaped conductor sections comprise a first type conductor section and a second type conductor section. The stator winding comprises an A-phase first winding and an A-phase second winding, the A-phase first winding comprises an A-phase first sub-circuit and an A-phase second sub-circuit, the A-phase first sub-circuitand the A-phase second sub-circuit are wound in parallel, the A-phase second winding comprises an A-phase third sub-circuit and an A-phase fourth sub-circuit, and the A-phase third sub-circuit and the fourth sub-circuit are wound in parallel. At the corresponding welding ends of the second sub-winding section of the A-phase first winding and the seventh sub-winding section of the A-phase second winding, the welding ends span the (y-1) stator slots, so that the distance at the welding ends can be reduced, the welding connection is easy to realize, the conductor area is 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.

Images