文献类型：期刊文献

英文题名：Optimization design of excitation coil for pulsed eddy current testing of laser welding defect structure of power battery bus-bar

作者：He, Kuanfang[1];Yong, Jiangfeng[1];Liang, Jiahe[1];Xia, Zixiong[1];Si, Yin[1];Shi, Wenqing[2]

机构：[1]Foshan Univ, Sch Mech & Elect Engn & Automat, Foshan 528000, Peoples R China;[2]Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang, Peoples R China

年份：2024

卷号：238

期号：13

起止页码：6269

外文期刊名：PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000799691700001)、、EI(收录号：20222212164147)、Scopus(收录号：2-s2.0-85130626999)、WOS

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the National Natural Science Foundation of China (62073089, 51475159), Guangdong Provincial Natural Science Foundation of China (2020B1515120006), and Guangdong innovation team (2020KCXTD015).

语种：英文

外文关键词：power battery pack; laser weld structural defect; pulse eddy current testing; excitation coil; optimum design

外文摘要：Pulsed eddy current testing is suitable for non-contact detection of conductor structural defect, which is an effective method to realize online detection of welding structural defect of power battery pack. Aiming at the circular laser weld structure between the bus-bar and the terminal of the power battery pack, a three-dimensional finite element simulation model of pulsed eddy current testing is established. According to the structural parameters of the pulsed eddy current excitation coil, which are the inner diameter, outer diameter, height and number of turns, the pulsed eddy current voltage responses of the laser welding defect structure of the battery pack bus-bar are calculated, respectively. By analyzing the influence of the excitation coil parameters on the pulsed eddy current detection results, the pulsed eddy current excitation coil parameters are determined for the testing of laser welding structural defects. It provides a method and basis for the optimal design of the pulsed eddy current detection system for the laser weld structural defect of the battery pack bus-bar.