Flat wire stator wire outlet end structure and flat wire motor

Abstract

The invention relates to a flat wire stator wire outlet end structure and a flat wire motor. The flat wire stator wire outlet end structure comprises a flat wire stator winding and a wire outlet connecting structure, wherein the flat wire stator winding comprises a U-phase winding, a V-phase winding and a W-phase winding which are connected in a star shape; the wire outlet connecting structure comprises a U-phase copper bar connected with the U-phase winding, a V-phase copper bar connected with the V-phase winding, a W-phase copper bar connected with the W-phase winding and a neutral point copper bar connected with each phase winding, and the U-phase copper bar, the V-phase copper bar, the W-phase copper bar and the neutral point copper bar are arranged on a same side of the flat wire stator winding in a spatial staggering manner; and each phase winding comprises 2n branch outgoing lines and 2n neutral point outgoing lines, the 2n branch outgoing lines are connected to the two sides ofthe phase copper bar respectively, and the 2n neutral point outgoing lines are connected to the two sides of the neutral point copper bar respectively, wherein n is a positive integer greater than orequal to 1. According to the invention, the connection reliability of three-phase outgoing lines is improved while the height of the end part of the winding is reduced, and the insulation performanceof the stator outgoing line end is ensured.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a flat wire stator outlet end structure and a flat wire motor. Background technique [0002] With the development of new energy vehicle technology, the power and volume requirements of automotive motors are getting higher and higher. Flat-wire motors using flat copper wire as flat-wire stator windings have attracted more and more attention because of their high slot-fill ratio and high power density. However, compared with the traditional round wire winding, there are still many design difficulties in the online forming and three-phase outlet of the flat wire winding, which affect the mass production and industrialization of the flat wire stator. At present, many technologies are devoted to improving the insertion method and winding formation of the flat copper winding, but there is no good solution for the three-phase outlet. Contents of the invention [0003] The invention p...

AI Technical Summary

Problems solved by technology

However, compared with the traditional round wire winding, there are still many design difficulties in the online forming and three-phase outlet of the flat wire winding, which affect the mass production and industrialization of the flat wire stator.

At present, many technologies are devoted to improving the wire insertion method and winding formation of flat copper windings, but there is no good solution for the three-phase outlets.

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