Three-phase flat wire motor armature winding

Abstract

The invention relates to a three-phase flat wire motor armature winding, which comprises an iron core, slot insulating pieces and a three-phase winding, wherein the iron core is of an annular structure, and a plurality of mounting slots are formed in the inner wall of the iron core; the slot insulating piece comprises a plurality of insulating single tubes, and each insulating single tube is inserted into the corresponding mounting slot; the three-phase winding comprises three single-phase windings and a neutral point bus bar, each single-phase winding comprises a phase branch winding, each phase branch winding comprises two layer windings connected in series, the two layer windings are wound on the iron core in different directions and are wave windings, the parts, which penetrate through the iron core, of the layer windings are arranged in the insulating single tube in a stacked mode, the head ends and the tail ends of the phase branch windings are located on the outer side edges of the same sides of the phase branch windings, and the tail ends of the phase branch windings corresponding to the three single-phase windings are electrically connected through the neutral point bus bar. Molding elements are few in variety, the difficulty of the molding process is small, element molding equipment and tools are few, and industrialization is easy to achieve.

Description

technical field [0001] The invention relates to the technical field of flat wire armature windings, in particular to a three-phase flat wire motor armature winding. Background technique [0002] The drive motor armature assembly is a core component of the new energy vehicle drive motor. Its comprehensive performance directly determines the driving characteristics and reliability of the drive motor, and affects the power performance and cruising range of the vehicle. [0003] The traditional drive motor winding uses round enamelled wires, and the power density of the motor is low due to the low slot fill rate. The conductor section used in the flat wire motor is a rectangular enameled wire, commonly known as flat wire, because the flat wires are arranged more closely in the armature slot, which is conducive to reducing the gap between the conductors in the slot, and making the heat flow between the armature winding and the iron core thermal resistance Correspondingly, the he...

AI Technical Summary

Problems solved by technology

[0005] Based on the above statement, the present invention provides a three-phase flat wire motor armature winding to solve the technical problems of poor mechanical properties and unstable forming process of the flat wire armature winding in the prior art

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