Abstract: A lower grille assembly preventing light leakage and fixedly connected to a bumper skin of a vehicle and comprising a lower grille body with a buckle mounting orifice and a lower grille trim with a buckle, wherein the lower grille trim is fixedly connected to the lower grille body by means of the buckle and the buckle mounting orifice; a buckle flange extending outward on the buckle of the lower grille trim, the buckle including a U-shaped groove for receiving an end of the skin and in a clearance fit with the end, so as to clamp and support the skin, effectively ensuring a Z-direction clearance between the trim and the skin, preventing the skin from falling due to its dead weight, and avoiding light leakage due to an increased Z-direction clearance between the skin and the lower grille assembly resulting from deformation of the lower grille assembly.

Abstract: A flexible plastic snap-receiving socket (110) comprises a mounting panel (112), two support legs (111) arranged to be spaced apart from each other, and a weakening structure (113). Two opposite ends of the mounting panel are respectively connected to a top end of the support legs via the weakening structure. The weakening structure is U-shaped, and comprises a bottom wall (113a) and a side wall (113b, 113c). The snap-receiving socket can match with the existing plastic snap (120), and realize an effective connection between a vehicle back door trim panel (1) and a vehicle back door (2). Moreover, in a high-temperature or low-temperature ambient environment, the snap-receiving socket can ensure a good appearance matching between the vehicle back door trim panel and the vehicle back door in an installed state.

Abstract: A lower grille assembly preventing light leakage and fixedly connected to a bumper skin of a vehicle and comprising a lower grille body with a buckle mounting orifice and a lower grille trim with a buckle, wherein the lower grille trim is fixedly connected to the lower grille body by means of the buckle and the buckle mounting orifice; a buckle flange extending outward on the buckle of the lower grille trim, the buckle including a U-shaped groove for receiving an end of the skin and in a clearance fit with the end, so as to clamp and support the skin, effectively ensuring a Z-direction clearance between the trim and the skin, preventing the skin from falling due to its dead weight, and avoiding light leakage due to an increased Z-direction clearance between the skin and the lower grille assembly resulting from deformation of the lower grille assembly.