Aroma dispensing unit in a HVAC system of an automobile

摘要

The present invention provides for an aroma-dispersing unit in the HVAC system of an automobile. The aroma-dispersing unit includes a passageway and an aroma cartridge housed in an aroma cartridge housing. The passageway includes a first portion, a low-pressure zone and a second portion. The low-pressure zone defines an opening. The aroma cartridge is in communication with the low-pressure zone. The aroma cartridge also defines an opening at the top of the aroma cartridge. The opening of the low-pressure zone and the opening of the aroma cartridge are alignable such that air passing through the low-pressure zone can extract aroma from the aroma cartridge. The aroma mixed air enters the second portion of the passageway where it is dispersed into the interior of the automobile. The amount of aroma extracted from the aroma cartridge can be varied by adjusting the proximity of the opening of the aroma cartridge relative to the opening of the low-pressure zone.