Aerosol Generation Device with Adjustable RTD and RTD-Based Automatic Power Control

Abstract

The invention relates to an aerosol generation device (110). In particular, the invention relates to an aerosol generation device configured for adjusting a resistance-to-draw (RTD) of the device and for controlling a supplied power based on the RTD. A first aspect of the invention is an aerosol generation device comprising an aerosol generation unit (130) for generating aerosol and an adjusting unit (200) comprising a movable member (210) and configured for being set to a setting of a plurality of settings for mechanically adjusting the resistance-to-draw (RTD) through a mouthpiece (110) by moving the movable member. The plurality of settings allows a user to consistently and predictably adjust the RTD of the device as preferred.

1 . An aerosol generation device, comprising:
 an aerosol generation unit for generating aerosol; and   an adjusting unit comprising a movable member and configured for being set to a setting of a plurality of settings for mechanically adjusting the resistance-to-draw (RTD) through a mouthpiece by moving the movable member,   wherein the moveable member is configured to move relative to an airflow path of the aerosol generation device to change an effective cross section of the airflow path for changing the RTD.   
     
     
         2 . The aerosol generation device according to  claim 1 , further comprising a control unit for controlling a power supplied to the aerosol generating unit. 
     
     
         3 . The aerosol generation device according to  claim 2 , further comprising a detecting unit for detecting the setting of the adjusting unit,
 wherein the control unit is configured for controlling the power supplied to the aerosol generating unit based on the detected setting of the adjusting unit.   
     
     
         4 . The aerosol generation device according to  claim 3 , wherein the detecting unit comprises a potentiometer, a optical sensor, or a hall sensor for detecting the setting of the adjusting unit. 
     
     
         5 . The aerosol generation device according to  claim 2 , wherein the control unit is configured for changing the supplied power based on data stored in a database. 
     
     
         6 . The aerosol generation device according to  claim 5 , wherein the aerosol generation device is configured for storing the database. 
     
     
         7 . The aerosol generation device according to  claim 5 , wherein the data comprises one or more database entries that associate a setting of the adjusting unit with a supplied power. 
     
     
         8 . The aerosol generation device according to  claim 7 , wherein the database comprises one or more lookup tables that comprise one or more entries that each match a setting of the adjusting unit to a supplied power. 
     
     
         9 . The aerosol generation device according to  claim 7 , wherein the database comprises one or more lookup tables that comprise one or more entries that each match a setting of the adjusting unit to a power difference, and the control unit is configured to change the supplied power based on a nominal power offset by the power difference. 
     
     
         10 . The aerosol generation device according to  claim 9 , wherein the one or more entries each further match a setting of the adjusting unit to a maximum power, and the control unit is configured to change a supplied power based on the lower power of the nominal power offset by the power difference and the maximum power. 
     
     
         11 . The aerosol generation device according to  claim 8 , wherein the one or more lookup tables are associated with at least one of: a time of day, a consumable for use with the aerosol generation device and an operating condition of the aerosol generation device. 
     
     
         12 . The aerosol generation device according to  claim 1 , wherein
 the moveable member is provided with one or more through holes, and wherein   in a setting of the plurality of settings, at least a portion of at least one of the through holes is arranged in the airflow path,   wherein changing from a first setting of the adjusting unit to a second setting includes:   changing a portion of at least one of the through holes arranged in the airflow path to a different portion arranged in the airflow path; or   changing at least one of the through holes to a different through hole of which at least a portion is arranged in the airflow path.   
     
     
         13 . The aerosol generation device according to  claim 1 , wherein the moveable member is provided with a plurality of through holes and different through holes have different effective cross-sections. 
     
     
         14 . The aerosol generation device according to  claim 1 , wherein the movable member is configured to rotate or pivot relative to the airflow path. 
     
     
         15 . The aerosol generation device according to  claim 14 ,
 wherein the moveable member is provided with one or more through holes, and   wherein at least one of the through holes extends through the movable member in a direction substantially perpendicular to the rotation or pivot axis of the movable member, or   wherein at least one of the through holes extends through the movable member in a direction substantially parallel to the rotation or pivot axis of the movable member.   
     
     
         16 . The aerosol generation device according to  claim 1 , wherein the moveable member comprises an actuating element accessible on and/or from an exterior of the aerosol generation device, that causes the moveable member to move when operated.