新能源汽车驱动电机定子用扁铜线焊接工艺探究及接头性能分析Investigation on Welding Process and Mechanical Properties of Flat Copper Wire for New Energy Vehicle Drive Motor Stator
王鑫,张林立,王晓秋,杨连富,陈城,沈连生
摘要(Abstract)：
使用环形光斑激光焊及钨极氩弧（TIG）焊对新能源汽车驱动电机定子用扁铜线进行焊接试验，并对焊接工艺及接头的性能进行探究与分析。研究发现，扁铜线环形光斑激光焊接的最佳工艺为中芯功率2 500 W、环芯功率1 500 W、焊接速度290 mm/s、离焦量+5 mm，所得到的接头成型良好，无气孔等焊接缺陷；TIG焊的最优工艺参数为焊接电流140 A，焊接速度150 mm/s，所得到的接头存在少量缩孔。环形光斑激光焊工艺得到的接头最大抗剪强度为132 MPa，其接头硬度最大值出现在焊缝中心，约为140 HV0.2;TIG焊得到的最大抗剪强度为110 MPa，其接头硬度最大值出现在焊缝中心，约为128 HV0.2。环形光斑激光焊获得的焊接接头在组织形貌及力学性能上均优于TIG焊，是更适用于扁铜线焊接的工艺。
关键词(KeyWords)： 新能源汽车;扁铜线;激光焊;TIG焊;力学性能
基金项目(Foundation):
作者(Author): 王鑫,张林立,王晓秋,杨连富,陈城,沈连生
DOI: 10.19710/J.cnki.1003-8817.20230366
参考文献(References)：
- [1]曾凡林. Hairpin扁线电机定子工艺方法比较分析[J].机械设计与制造工程, 2021, 50(7):117-121.
- [2]韩明达.发卡式电机定子线圈成型方法研究[J].装备制造技术, 2020(5):76-79.
- [3]姚学松.基于扁铜线绕组的车用永磁同步电机性能分析[J].电子产品世界, 2020, 27(9):38-41.
- [4]徐君贤.电机与电器制造工艺学[M].北京:机械工业出版社, 2000.
- [5]潘敬涛.新能源汽车用永磁同步电机设计[D].沈阳:沈阳工业大学, 2019.
- [6]郭晗.电动汽车用永磁同步电机优化设计[D].哈尔滨:哈尔滨理工大学, 2019.
- [7]姜华.扁铜线电机交流损耗的计算方法[J].微特电机,2019, 47(12):32-34.
- [8]王淑旺,刘健,马志林,等.基于NEDC的纯电动汽车两挡变速器传动比设计[J].机械传动, 2020, 44(1):79-83.
- [9]赵韩,冯永恺,黄康.纯电动汽车变速器传动比区间优化[J].中国机械工程, 2015, 26(5):698-703+709.
- [10] ZHOU Q, LI Y, DING S, et al. Design of a Permanent Magnet Assistant Synchronous Machine with Torque Improvement[C]//IEEE 6th International Electrical and Energy Conference(CIEEC), 2023:4135-4140.
- [11]黄康,罗时帅,王富雷.纯电动汽车动力系统传动比优化设计[J].中国机械工程, 2011, 22(5):625-629.
- [12] WON H, HONG Y K, CHOI M, et al. Cost-Effectiveness Hybrid Permanent Magnet Assisted Synchronous Reluctance Machine for Electric Vehicle[C]//IEEE International Electric Machines&Drives Conference(IEMDC), 2021:1-6.
- [13] SURESH A, JINESH N, VARGHESE J,et al. MagnetoStatic Analysis of A Shower Tray Trap[C]//Second International Conference on Next Generation Intelligent Systems(ICNGIS), 2022:1-6.
- [14] WANG W, FU L, WANG S, et al. Magnetic Pole Equivalence and Performance Analyses of Multi-Layer Flux Barrier Combined Pole Permanent Magnet Synchronous Machines Used for Electric Vehicles[J].Energies, 2023, 16(11).
- [15] CR?CIUNESCU A. Current Concerns Regarding the Construction of High Power Density Electrical Machines for Electricity Transport Systems[J]. Electric Machines,Materials and Drives-Present and Trends, 2021(1):1.
- [16] HOFER M, SCHRODL M. Investigation of Permanent Magnet Assisted Synchronous Reluctance Machines for Traction Drives in High Power Flux Weakening Operation[C]//IEEE Transportation Electrification Conference&Expo(ITEC), 2020(6):1-5.
- [17] MA Q, EL-REFAIE A, LEQUESNE B. Low-Cost Interior Permanent Magnet Machine with Multiple Magnet Types[J]. IEEE Transactions on Industry Applications, 2020, 56(2):1452-1463.
- [18] WON H, HONG Y K, LEE W, et al. Low Torque Ripple Spoke-Type Permanent Magnet Motor for Electric Vehicle[C]//IEEE Interntional Electric Machine&Drives Conference, 2019(5):1-6.
- [19] WON H, HONG Y K, CHOI M, et al. Cost-Effectiveness Hybrid Permanent Magnet Assisted Synchronous Reluctance Machine for Electric Vehicle[C]//2021 IEEE International Electric Machines&Drives Conference(IEMDC), 2021:1-6.
- [20] LIN Y, SUN Y, WANG Y, et al. Axially Segmented PMASynRM with Hybrid Rotors[C]//2020 IEEE 3rd Student Conference on Electrical Machines and Systems(SCEMS), 2020:33-38.
- [21] IPG. Adjustable Mode Beam Lasers[EB/OL].(2021-06-09)[2023-10-31]. https://lasersystems. ipgphotonics.com/technology/adjustable-mode-beam.