Abstract: New energy vehicle development is accelerating in the automotive industry. The impact of lightweight vehicle on automobile performance has long been a source of contention in the industry. The air conditioning of lightweight vehicles has become an inevitable development trend, conducting EPP material characteristics and air conditioning chassis structural analysis. Using adhesive to solve the components fixed connection strength on the chassis, as well as design suspension, chalm, stretching, destruction, loose, whole machine vibration and other series of experimental verification, verification results are significantly improved, guaranteed. Components are firmly attaches to the EPP chassis. Exploration of feasibility, resolution of difficulties, method summary, etc., the use of automotive, home appliances, logistics and transportation and other industrial products, application EPP material fixed connection applications.

Key words: EPP, fixed connection, loose