玻璃纤维复合材料电池包上盖设计与分析  

Design and analysis of glass fiber composite battery pack cover

作　　者：赵港 曹清林 邱睿 郭平安 王居闯 ZHAO Gang;CAO Qinglin;QIU Rui;GUO Ping’an;WANG Juchuang(School of Mechanical Engineering,Jiangsu University of Technology,Changzhou 213001,China;China Manchinery Industy Technology Research Institute of Precision Forming,Wuhu 241000,China)

机构地区：[1]江苏理工学院机械工程学院,常州213001 [2]中机精密成形产业技术研究院(安徽)股份有限公司,芜湖241000

出　　处：《复合材料科学与工程》2024年第10期125-133,共9页Composites Science and Engineering

摘　　要：为减轻车身重量,对金属电池包上盖进行玻璃纤维复合材料轻量化设计。依据上盖的技术要求,采用黑阻燃玻璃纤维方格布预浸料进行铺层设计,通过试验优选[(0,90)/(±45)/(0,90)/(±45)/(0,90)]2铺层为性能最优方案。利用FiberSIM软件进行电池包上盖结构的铺覆设计,探讨盖类件的铺覆裁剪方案,分别对(0,90)和(±45)的铺层进行铺覆可行性分析,依据完整度指标对铺层展开图进行分析,确定剪口方案为最佳方案。选取颠簸、紧急制动和左急转弯工况对电池包上盖作静态分析,分别对金属材质与玻璃纤维材质两种电池包上盖最大位移值和最大应力值进行比较,验证了玻璃纤维复合材料铺层方案的准确性。实际制造产品的强度、刚度、气密性、阻燃、导热、耐电压均满足设计要求,减重41.22%,满足轻量化要求。In order to reduce the weight of the body,the upper cover of the metal battery pack is designed to reduce the weight of the glass fiber composite.According to the technical requirements of the upper cover,the black flame retardant glass fiber checkered cloth prepreg is used for the ply design,and the[(0,90)/(±45)/(0,90)/(±45)/(0,90)]2 ply is selected as the optimal performance scheme through the test.FiberSIM software is used to lay the upper cover structure of the battery pack,the laying and cutting scheme of cover parts is discussed,the pavement feasibility analysis of(0,90)and(±45)is carried out respectively,and the ply is analyzed according to the completeness index to determine that the cutting scheme is the best solution.The battery pack cover was statically analyzed under bump,emergency braking and left sharp turn conditions,and the maximum displacement value and maximum stress value of the metal and glass fiber battery pack covers were compared respectively,which verified the accuracy of the glass fiber composite layer laying scheme.The strength,stiffness,air tightness,flame retardancy,thermal conductivity and voltage resistance of the actual manufactured products meet the design requirements,and the weight reduction effect is 41.22%,which meets the requirements of lightweight.

关 键 词：电池包 玻璃纤维 铺覆 性能检测 轻量化 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]