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Stator winding structure and electric machine comprising stator winding structure

A stator winding and winding technology, applied in the shape/style/structure of winding conductors, electromechanical devices, electrical components, etc., can solve problems such as electromagnetic coupling uneven current circulation, reduce current circulation, reduce heat radiation, and improve heat dissipation effect of ability

Active Publication Date: 2022-06-21
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem of current circulation caused by uneven electromagnetic coupling caused by magnetic flux leakage in the currently widely used 8-pole multi-layer (8-layer and above) flat copper wire windings, the present invention proposes a winding structure with 4 parallel windings

Method used

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  • Stator winding structure and electric machine comprising stator winding structure
  • Stator winding structure and electric machine comprising stator winding structure
  • Stator winding structure and electric machine comprising stator winding structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] In the three-phase AC motor of this example, the stator includes a stator core 11 and a stator winding structure 100 . The stator core 11 has a plurality of slots distributed in the circumferential direction. The stator winding structure 100 is composed of a plurality of U-shaped flat copper wires 10 .

[0155] The three-phase (U, V and W phases) outgoing wires in the stator are arranged at the welding ends of the U-shaped flat copper wires 10 of the stator winding structure 100 . Accordingly, the deflector 12 (eg Figures 7A-7D shown) are also arranged at the welding end for the outgoing wires of each phase. The stator of the first embodiment is as Figure 3-4 shown.

[0156] like Figure 5-6 , Figures 8A-8D as well as Figures 9A-9DAs shown, the perspective view, the wiring structure diagram and the developed view from the U-shaped end (first side) of the four parallel winding branches of the U-phase winding structure 100U of the first embodiment are respectiv...

Embodiment 2

[0175] In the three-phase AC motor of this example, the stator includes a stator core 11 and a stator winding structure 100 . The stator core 11 has a plurality of slots distributed in the circumferential direction. The stator winding structure 100 is composed of a plurality of U-shaped flat copper wires 10 .

[0176] Three-phase (U, V and W phases) outgoing wires in the stator are arranged at the welding ends of the U-shaped flat copper wires 10 of the stator winding structure 100 . Accordingly, the deflector 12 (eg Figures 14A-14D shown) are also arranged at the welded end for the outgoing wires of each phase. The stator of the second embodiment is as Figure 10-11 shown.

[0177] like Figure 12-13 , Figures 15A-15D as well as Figures 16A-16D As shown, the perspective view of the four parallel winding branches of the U-phase winding structure 100U of the second embodiment, the wiring structure diagram and the developed view from the U-shaped end (the first side) a...

Embodiment 3

[0196] In the three-phase AC motor of this example, the stator includes a stator core 11 and a stator winding structure 100 . The stator core 11 has a plurality of slots distributed in the circumferential direction. The stator winding structure 100 is composed of a plurality of U-shaped flat copper wires 10 .

[0197] The three-phase (U, V and W phases) outgoing wires in the stator are arranged at the U-shaped ends of the U-shaped flat copper wires of the stator windings. Accordingly, the deflector 12 (eg Figures 7A-7D shown) is also arranged at the U-shaped end for the outgoing wires of each phase. The stator of the third embodiment is as Figure 17-18 shown.

[0198] like Figure 19-20 , Figures 21A-21D as well as Figures 22A-22D As shown, the perspective view of the four parallel winding branches of the U-phase winding structure 100U of the third embodiment, the wiring structure diagram and the developed view from the U-shaped end (the first side) are respectively...

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Abstract

The application provides a stator winding structure, the motor is a three-phase AC motor with eight poles, each phase includes four parallel winding branches, the stator winding is composed of a plurality of U-shaped flat copper wires, each of which is arranged in the motor The connecting parts of the two U-shaped flat copper wires are located on the same side relative to the motor. The present application also provides an electric machine including a stator winding structure and a vehicle including the electric machine. The stator winding structure has the advantages of improving the heat dissipation capacity of the conductors away from the cooling liquid in the stator slot, balancing the temperature difference between the conductors of each layer, and the like.

Description

technical field [0001] The present application relates to a stator winding structure and a motor including the stator winding structure, in particular to a stator winding structure constructed of flat wires, and the motor including the stator winding can be used as a drive motor or a generator to be suitable for new energy vehicles and the like. Background technique [0002] Electric machines, such as AC motors, include stator assemblies and rotor assemblies. The stator assembly generally includes a stator winding and a stator core. The stator winding provides the electrical energy input and the establishment of the magnetic field for the motor, while the stator core provides the magnetic load channel for the motor. [0003] In order to improve the power density of the motor, enhance the heat dissipation capacity and structural stability of the motor, etc., the motors used in new energy vehicles often use hairpin flat wire windings, which greatly improves the slot full rate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/28H02K3/12H02K3/04H02K3/24
CPCH02K3/28H02K3/12H02K3/04H02K3/24H02K2213/03
Inventor 朱军王健黄少锐李节宝李灏淳闵远亮
Owner SAIC MOTOR