基于流道流量可调的锂电池散热特性研究  

Examination of the heat dissipation characteristics in adjustable channel flow for lithium-ion batteries

作　　者：唐友名 胡义 王平 张义 Tang Youming;Hu Yi;Wang Ping;Zhang Yi(Mechanical&Automotive Engineering College,Xiamen Technology University,Xiamen 361024,China;School of Mechanical&Energy Engineering,Zhejiang University of Science&Technology,Hangzhou 310023,China)

机构地区：[1]厦门理工学院机械与汽车工程学院,厦门361024 [2]浙江科技大学机械与能源工程学院,杭州310023

出　　处：《低温与超导》2024年第11期33-39,89,共8页Cryogenics and Superconductivity

基　　金：福建省自然科学基金(2021J01130551);浙江科技大学科研启动基金(F701102N11)资助。

摘　　要：为解决电池组在高强度运行中电池温度高、温度均匀性差的问题,本文设计一种带截流阀的液冷板。采用数值模拟对比分析新型液冷板与传统平行流道液冷板的性能,研究了新型液冷板的出口尺寸大小、出口位置、截流板长度等对液冷板冷却性能和压降特性的影响。结果表明:具有截流阀新型液冷板,其最高温度降低了4.185%,最大温升降低了5.431%,液冷板进出口压降上升了0.723%,很大程度上改善了性能;液冷板性能随出口大小、出口对称位置L的增大先提高后降低;截流板对液冷板性能的影响程度:第四组>第二组>第一组>第三组;最高温度、最大温差、压降因第四组截流板长度而变化的幅度达2.97℃、2.47℃、134.62 Pa。To address the challenges associated with elevated battery temperatures and uneven temperature distribution dur-ing high-intensity operations,a liquid cooling plate with a closure valve was designed.The efficacy of the innovative cooling plate was benchmarked against the conventional parallel flow path liquid cooling plate through numerical simulation.An investigation was conducted into the effects of variables such as outlet dimensions,outlet positioning,and interceptor length on the cooling effi-ciency and pressure drop characteristics of the novel cooling plate.Findings indicate that the cooling plate with a closure valve a-chieves a reduction in maximum temperature by 4.185%and in maximum temperature increase by 5.431%.Although the inlet and outlet pressure drop experiences a minor increase of 0.723%,this leads to a significant enhancement in overall performance.Moreover,the performance of the cooling plate peaks before diminishing with increasing outlet size and the symmetrical position L.Regarding the impact of the interceptor plate on the cooling plates performance,the following descending order of influence is observed:the fourth group>the second group>the first group>the third group.This is evidenced by variations in maximum temperature,maximum temperature difference,and pressure drop,which change by 2.97℃,2.47℃,and 134.62 Pa,respec-tively,due to the length of the interceptor plate in the fourth group.

关 键 词：液冷板 截流阀装置 锂电池 热管理 

分 类 号：TN40[电子电信—微电子学与固体电子学]