新能源汽车直冷热管理系统的典型故障分析

打开文本图片集

中图分类号：U469.72 文献标识码：A 文章编号:1003-8639（2026）02-0168-03

Typical Fault Analysis and Maintenance of Direct Cooling and Heating Management System for New Energy Vehicles

Huang Wenyi (Zhaoqing Industrial and Trade School, Zhaoqing 526ooo, China)

【Abstract】This study focuses on typicalfaults ofthe thermal managementsystem for direct cooled batteries in new energy vehicles.The studyanalyzes the problem of uneven temperature betweenbatteryclusterscaused bydesign defects inthe condenser flow channel,and proposes acomprehensive solution basedonflow field simulation and coordinated optimizationof thecontrol system.Atthe sametime,the standard maintenance process,safetyoperation points,andrepair verification methods for key components such as temperature sensors and electronic expansion valves have beendetailed and standardized,emphasizing thecore positionofrefrigeranttreatmentand airtightness testing.Theresearch results provide theoretical guidance and practical engineering practice references forthe precise diagnosis offaults,safe and efficient maintenance,and system performance optimization of direct cooling systems.

【Key words】 new energy vehicles；power batery；direct coling and heating management system；typical fault analysis

0 引言

新能源汽车的快速发展对动力电池的性能与安全提出了更高要求，高效可靠的热管理系统成为保障电池在适宜温度区间工作的关键技术方案。（剩余4347字）