【摘要】采用文献综述方法,结合汽车空调设计、使用和维修实情,从密封种类、密封原理等方面,介绍了O形密封圈密封技术在汽车空调中的应用现状,对制冷压缩机和管道接头O形密封圈密封技术进行了简要分析,并提出了一些改进的建议。Abstract：Incombinationwiththetruthofdesign，useandmaintenanceofautomobileairconditioning，fromintermsofsealingtype，sealingmechanism，etc，theapplicationstatusof0一ringsealtechnologyisintroducedbyadoptingthemethodofliteraturereview．0一ringtechnologyinrefrigerationcompressorandpipejointssealingisbrieflyanalyzedandsomeimprovementsuggestionsisputforward．