Patent ID: 7845581
Filing Date: 2010-12-07
Classification: A61L,B60H

Abstract:
1. An air freshener, comprising: an essence box made of plastics and filled with liquid essence; a slideable box molded from thermoplastics; a holding jacket molded from thermoplastics; and a fixing device; wherein the essence box comprises a box body which is suction molded from plastic sheet materials and is shaped and sized to be just embeddable in the slideable box and has an edge in a same plane along a periphery of an opened side of the box body, a semi-permeable film, which is impermeable to the liquid essence and permeable to essence gas, is sealed on the plane of the edge along the periphery of the opened side of the box body, and an aluminum foil-plastic composite film, which prevents the essence gas from being diffused from the essence box before use, is attached to the semi-permeable film; wherein the slideable box is in a shape of a hexahedron having approximately a rectangle cross-section and fitting to the shape of the essence box, one side of the slideable box is opened and is sized to just allow the essence box to pass through and has grooves for inserting the edge of the essence box and engaging the essence box, a plurality of projections are formed on a back side of the slideable box for defining a sliding range of the slideable box in the holding jacket, around the projections positioned close to one end of the slideable box, U-shaped slots are formed for pressing down the projections for inserting the slideable box into the holding jacket and returning to their original position when the slideable box is completely inserted in the holding jacket, and a window which allows essence gas to be released is formed on the back side of the slideable box; and wherein the holding jacket is in a shape of a hollowed hexahedron having approximately a rectangle cross-section and fitting to the shape of the slideable box, a pair of opposite sides are opened and thus the hexahedron forms a jacket, the holding jacket just surrounds the slideable box when assembled, and a clipping groove for clipping the fixing device is provided on a back side of the holding jacket.