Convex rib atmosphere lamp

The utility model belongs to the technical field of automobiles, and discloses a convex rib atmosphere lamp which comprises a connector, a PCB assembly, a support and a light guide body. The PCB assembly comprises a PCB box and a PCB wire harness. A PCB is fixed in the PCB box. The PCB is provided with lamp beads; the PCB is connected with the connector through the PCB wiring harness; the PCB boxis provided with a connecting pipe; one end of the light guide body is inserted into the connecting pipe to be connected with the PCB box; the support is provided with a containing groove for containing the light guide body, a limiting groove is formed in the containing groove, a protruding rib is arranged on the portion, clamped into the support, of the light guide body, and the protruding rib isclamped into the limiting groove. According to the utility model, the convex ribs of the light guide body can be utilized to improve the positioning accuracy; and the convex ribs are used for positioning and adjusting the ang