The utility model relates to a vehicle fragrance diffuser structure.The utility model comprises: a diffuser body and a clamping member；The system is made of diatomite through mould.A plurality of capillary pores are formed on the body surface of the diffuser.One side of the diffuser body is provided with a connecting part which has been connected with the holder；The clamping piece has a joint part and an elastic clamping piece.The connecting part is used for fixing the connecting part of the diffuser body.The joint part assembles the elastic clip towards the opposite side of the diffuser body.The elastic clip is used for clamping the blades of an automobile air-conditioning outlet；The body of the diffuser is coated with fragrance liquid or essential oil.The capillary pores absorb the fragrance liquid and release the fragrance.The holder is fixed on a blade of an automobile air-conditioning air outlet.Achieve the effect of fresh smell in the car.一種車用香氛擴香器結構，包含有：一擴香器本體與一夾持件所構成；該擴香器本體係由珪藻土透過模具所製造，該擴香器本體表面形成具有複數個毛細容孔，該擴香器本體之一面設有一連接部用已與該夾持件連結；該夾持件具有一結合部與一彈性夾片，該結合部用於固定在該擴香器本體之連接部，該結合部朝該擴香器本體相反的一側組裝該彈性夾片，該彈性夾片用於夾持在一汽車冷氣出風口之葉片；該擴香器本體上塗抹香氛液體或是香氛精油，該些毛細容孔吸收該香氛液體後釋出香氛，該夾持件固定在一汽車冷氣出風口之葉片，達到車內氣味清新之功效。
