关键词: 车身孔洞；密封技术；验证试验

Abstract: In order to improve the NVH level of the car and improve the comfort of the air conditioner to ensure the driving comfort of the occupants, the body should be well sealed. From the point of view of the body subsystem that affects the airtightness of the whole vehicle, combined with the professional practical experience of the vehicle airtightness monitoring and propulsion solution in the new model project, the method of comparison is adopted, and the reasonable body hole structure plugging process and common verification methods in the whole vehicle design process are discussed. It has been proved by practice that the above structure, process and verification method can meet the requirements of body sealing. Through the verification of the design data in the early stage and the compliance inspection of the vehicle sealing performance in the trial production stage, combined with various test and testing schemes, the sealing performance target of the whole vehicle can be quickly achieved.

Key words: Body hole; Sealing technology; Verification test