电池冷板是电池热管理系统重要组成部分,新能源电池热管理性能对电池性能发挥和电池安全方面有着重要的作用。本文通过冷板静载荷试验,设计匹配测试工装,研究冷板强度,分析冷板变形量,通过试验对比成型冷板和原材料的强度差异,测试冷板在试验前后整体气密性变化。同时,电池大面冷却空间布局和电池实际膨胀力载荷条件下,开展冷板疲劳耐久研究,分析冷板在交变载荷条件测试后形变状况,测试冷板试验前后整体气密性变化。通过冷板静载荷试验和疲劳耐久试验结果,为优化冷板结构设计和空间布局提供数据指导。

The battery cold plate is an important component of the battery thermal management system. The thermal management performance of new energy batteries plays a crucial role in the performance and safety of batteries. Through static load tests on the cold plate, a matching test fixture is designed to study the strength of the cold plate, analyze the deformation of the cold plate, compare the strength differences between the formed cold plate and raw materials, and test the overall air tightness changes of the cold plate before and after the test. At the same time, based on the layout of the cooling space on the large surface of the battery and the actual expansion force load conditions of the battery, fatigue durability research on the cold plate is carried out. The deformation of the cold plate after the alternating load test is analyzed, and the overall air tightness changes of the cold plate before and after the test are tested. Through the results of the static load test and fatigue durability test of the cold plate, data guidance is provided for optimizing the structural design and spatial layout of the cold plate.