连续纤维复合材料电池包上盖的设计研究  

Design and Research on the Continuous Fiber Composite Battery Package Upper Cover

作　　者：陈国锋 CHEN Guofeng(Quanzhou Institute of Equipment Manufacturing,Quanzhou 362216,China;Quanzhou Institute of Equipment Manufacturing,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Quanzhou 362216,China)

机构地区：[1]泉州装备制造研究所,福建泉州362216 [2]中国科学院福建物质结构研究所泉州装备制造研究中心,福建泉州362216

出　　处：《汽车实用技术》2024年第9期121-127,共7页Automobile Applied Technology

基　　金：2022年度福建省中科院STS计划配套项目基于数字化设计与仿真技术的200 kW分体式落地厢电源车研发(2022T3050);2023年度福建省中科院STS计划配套项目半挂汽车列车快速绞接与安全倒车智能辅助系统关键技术研发与应用(2023T3088)。

摘　　要：轻量化技术可有效提高新能源汽车续航能力和驾驶性能,已被广泛应用于汽车的生产制造中。连续纤维复合材料在比强度、比刚度、热膨胀系数与抗疲劳性能等方面比传统金属更具有优势,开启了轻量化新时代。文章以新能源汽车核心部件电池包为研究对象,基于高压树脂传递模塑成型(HP-RTM)工艺,根据碳纤维复合材料与玻璃纤维复合材料的材料特点,对电池包上盖进行了轻量化设计。通过结构优化、工艺优化、连接方式优化等技术手段完成了电池包上盖的轻量化量产方案。电池包样机测试结果表明,采用碳纤维复合材料和玻璃纤维复合材料制作的电池包上盖可以有效提升电池包结构的强度、刚度以及耐疲劳性,综合减重达50%以上。文章所述的连续纤维复合材料轻量化设计方案也可为汽车其他零部件设计提供指导。Lightweight technology can effectively improve the range and driving performance of new energy vehicles,and has been widely applied in the production and manufacturing of automobiles.Compared with traditional metal materials,fiber composite materials have advantages such as specific strength and stiffness,low thermal expansion coefficient,and good fatigue resistance,ushering in a new era of lightweight.This paper takes the battery pack(the core component of new energy vehicles)as the research object.Based on the high pressure resin transfer molding(HP-RTM)process,the upper cover of the battery pack is lightweight designed using carbon fiber composite materials and glass fiber composite materials.A lightweight mass production plan for the battery pack cover is completed through technical means such as structural optimization,process optimization,and connection method optimization.The test results of the battery package prototype show that the upper cover of the battery pack made of carbon fiber composite material and glass fiber composite material can effectively improve the strength,stiffness,and fatigue resistance of the battery pack structure,with a comprehensive weight reduction of over 50%.The lightweight design scheme of continuous fiber composite materials described in this article can also provide guidance for the design of other automotive components.

关 键 词：HP-RTM 连续纤维 电池包上盖 

分 类 号：TB33[一般工业技术—材料科学与工程]