Stator assembly and motor

Abstract

The invention discloses a stator assembly and a motor. The stator assembly comprises a stator core and a stator winding. Each phase of first winding of the stator winding comprises a first winding part and a plurality of second winding parts. The first winding part comprises first to fourth spans. Each second winding part comprises fifth and sixth spans. Each phase of second winding of the statorwinding comprises a third winding part and a plurality of fourth winding parts. The third winding part comprises seventh to tenth spans. The fourth winding part comprises eleventh and twelfth spans. According to the stator assembly, the pitch of a plurality of spans is arranged to be different from that of other spans during the winding process, the potential vector of the stator slots can be balanced, the potential phase angle difference of the slot moment angle can be suppressed, the potential balance between the circuit windings can be realized, the internal circulation of the stator winding can be suppressed, the harmonic electromagnetic excitation generated by the circulation can also be suppressed and the vibration of the motor can be reduced.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stator assembly and a motor. Background technique [0002] In the related technology, the stator assembly of the motor is wave-wound, from the outermost layer to the innermost layer, and then the reverse wave is wound to the outermost layer. From the analysis of the manufacturing process and the mass manufacturer, the flat wire armature that needs to be produced There are many types, and both ends of the axial direction need to be welded, and there are many solder joints. In addition, after the flat wire is offline, it is difficult to fix it accurately, the production cost is high, and the manufacturing process is difficult. From the analysis of the electrical connection, the wave winding form has a high voltage difference between different layers in the same slot. When used under high voltage, the layers are easily broken down, resulting in a short circuit and causing the motor...

AI Technical Summary

Problems solved by technology

[0002] In the related technology, the stator assembly of the motor is wave-wound, from the outermost layer to the innermost layer, and then the reverse wave is wound to the outermost layer. From the analysis of the manufacturing process and the mass manufacturer, the flat wire armature that needs to be produced There are many types, and both ends of the axial direction need to be welded, and there are many solder joints. In addition, after the flat wire is offline, it is difficult to fix it accurately, the production cost is high, and the manufacturing process is difficult.

From the analysis of the electrical connection, the wave 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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