Aerosol generating device

Abstract

An aerosol generating device includes a housing including an accommodation space in which an aerosol generating article is accommodated and an air flow path through which fluid moves inside the housing, wherein a volume of the air flow path is variable.

What is claimed is: 
     
         1 . An aerosol generating device comprising:
 a housing comprising an accommodation space in which an aerosol generating article is accommodated; and   an air flow path through which fluid moves inside the housing,   wherein a volume of the air flow path is variable.   
     
     
         2 . The aerosol generating device of  claim 1 , further comprising an adjuster located inside the accommodation space, surrounding at least a portion of the air flow path, and movable to adjust a volume of the air flow path. 
     
     
         3 . The aerosol generating device of  claim 1 , further comprising a movable portion located along a circumferential direction of the air flow path and movable, within a preset movement range, in a first direction toward an inside of the air flow path or a second direction opposite to the first direction. 
     
     
         4 . The aerosol generating device of  claim 3 , further comprising a fixed portion arranged in the circumferential direction to support the movable portion, and comprising a guide surface along which the movable portion is guided to linearly move. 
     
     
         5 . The aerosol generating device of  claim 3 , wherein the movable portion comprises a first movable portion and a second movable portion that is movable in the first direction with respect to the first movable portion. 
     
     
         6 . The aerosol generating device of  claim 1 , further comprising a plurality of adjustment units sequentially arranged in an extension direction of the air flow path and movable, within a preset movement range, in a direction from an edge of the air flow path toward an inside or a direction opposite to the direction. 
     
     
         7 . The aerosol generating device of  claim 6 , wherein the plurality of adjustment units are independently movable. 
     
     
         8 . The aerosol generating device of  claim 1 , wherein the housing comprises an opening open toward an outside at one end of the accommodation space,
 wherein the aerosol generating device further comprises an adjustment plate located in the opening and movable to adjust an area of the opening.   
     
     
         9 . The aerosol generating device of  claim 1 , further comprising one or more sliding portions having tubular shapes and sequentially arranged in a direction from an edge of the air flow path toward an inside,
 wherein the one or more sliding portions are movable in an extension direction of the air flow path within a preset movement range.   
     
     
         10 . The aerosol generating device of  claim 9 , wherein the one or more sliding portions have tubular shapes surrounding the air flow path. 
     
     
         11 . The aerosol generating device of  claim 1 , further comprising one or more rotating portions arranged along a circumferential direction of the air flow path and one or more rotating grooves in which the one or more rotating portions are accommodated,
 wherein the one or more rotating portions are rotatable along the circumferential direction of the air flow path around a rotation axis within a preset movement range.   
     
     
         12 . The aerosol generating device of  claim 1 , further comprising a support portion supporting one end of the aerosol generating article,
 wherein the support portion comprises an inclined surface to support aerosol generating articles having different thicknesses.   
     
     
         13 . The aerosol generating device of  claim 1 , further comprising a heater configured to heat the aerosol generating article accommodated in the accommodation space,
 wherein the heater is movable in a direction from an outside to an inside of the accommodation space or a direction opposite to the direction.   
     
     
         14 . The aerosol generating device of  claim 1 , further comprising an input unit configured to generate a signal according to a user's input so that the user adjusts a volume of the air flow path. 
     
     
         15 . The aerosol generating device of  claim 1 , further comprising:
 an adjuster movable to adjust a volume of the air flow path; and   an actuator configured to move the adjuster.