▎ 摘　　要

NOVELTY - The utility model claims a mobile phone back cover technology field, and claims a light weight of mobile phone back cover, comprising a heat-resistant protective layer, an alloy layer, an anti-static layer, an elastic protective layer and a beautiful layer, the heat-resistant protective layer, an alloy layer, an anti-static layer, an elastic protective layer, the beautiful layer is orderly connected through harmless adhesive from up to down, the heat-resistant protective layer comprises aluminium silicate plate and graphene, the alloy layer comprises titanium alloy, the anti-static layer comprises anti-static POM plate and anti-static PA plate, the elastic protective layer comprises a melamine layer, a TPE layer, PP layer and PE layer, the utility model can protect the back side of the mobile phone through the heat-resistant protective layer, preventing the battery from damaging the device in the process of using, avoiding scald using personnel, by setting the alloy layer can effectively increase the hardness of the device; at the same time, it can prevent the device from deformation, The stability of the device is increased.