In-car environment purification diffuser

An in-car environment purification diffuser, comprising a bottom housing, an electric fan, a water tank, an oscillation device, a spray cover, and a control unit, wherein:

• said bottom housing comprises an accommodation chamber defined inside, a first air inlet provided on a bottom side of said accommodation chamber, and an opening formed on an upper edge of said accommodation chamber;
• said water tank comprises a slot, an oscillation space, a tank bottom, a perforation, a tank cover and an air flow channel, said slot being formed on an upper side of said water tank, said oscillation space being defined in said water tank for holding a liquid, said tank bottom being located at a bottom of said oscillation space and opening said perforation, said air flow channel having one side thereof protruding into said oscillation space of said water tank to form an inner vent and an opposite side thereof extending out of said tank bottom to form an outer vent;
• said electric fan is mounted in said outer vent;
• said water tank is mounted inside said accommodation chamber;
• said outer vent of said air flow channel and said electric fan are disposed in said accommodation chamber in communication with said first air inlet, which provides a path for said electric fan to inhale external air;
• said tank cover comprises a shield and a first exhaust hole, said shield forming a concave shape on an inner side of the peripheral edge of said tank cover, said first exhaust hole being formed on an opposite side of said tank cover, said tank cover being detachably covered on said slot, said shield of said tank cover being covered over said inner vent, said inner vent and said first exhaust hole being commonly disposed in communication with said oscillation space;
• said oscillation device is mounted in said perforation;
• said spray cover comprises a spray hole, said spray cover being detachably mounted on said opening of said bottom housing to shield said tank cover, so that said spray hole communicates with said first exhaust hole and said oscillation space to form a spray outlet path;
• said control unit is mounted in said accommodation chamber at one side of said tank bottom and electrically connected with said oscillation device and said electric fan.