Vaporizer for aerosol generating device and aerosol generating device including the same

Abstract

A vaporizer for an aerosol generating device includes a storage unit storing an aerosol generating material, and a heating chamber configured to heat the aerosol generating material, wherein the heating chamber includes a wick extending in a longitudinal direction and configured to absorb the aerosol generating material, a coil wound around the wick and configured to heat the aerosol generating material absorbed into the wick, and an accommodation portion configured to accommodate the wick, a diameter of wire of the coil is 0.15 mm to 0.2 mm, the number of turns of the coil is 6 times to 9 times, and an ohmic loss in the coil is less than 8 watts (W).

1 . A vaporizer for an aerosol generating device, the vaporizer comprising:
 a storage unit configured to store an aerosol generating material; and   a heating chamber configured to heat the aerosol generating material,   wherein the heating chamber includes:   a wick extending in a longitudinal direction and configured to absorb the aerosol generating material;   a coil wound around the wick and configured to heat the aerosol generating material absorbed into the wick; and   an accommodation portion configured to accommodate the wick, wherein a diameter of wire of the coil is 0.15 mm to 0.2 mm, the number of turns of the coil is 6 times to 9 times, and an ohmic loss in the coil is less than 8 watts (W).   
     
     
         2 . The vaporizer of  claim 1 , wherein an electrical resistance of the coil is 1.1 ohm to 1.25 ohm. 
     
     
         3 . The vaporizer of  claim 1 , wherein the wick has a length of 8.3 mm to 9.7 mm. 
     
     
         4 . The vaporizer of  claim 1 , wherein an uncompressed diameter of the wick is 2.4 mm to 2.6 mm, and a compression diameter of the wick is 1.85 mm to 2.15 mm. 
     
     
         5 . The vaporizer of  claim 1 , wherein a winding interval of the coil wound around the wick is 0.46 mm to 0.55 mm. 
     
     
         6 . The vaporizer of  claim 1 , wherein the coil is wound around the wick to have a length of coil of 3 mm to 3.8 mm in a longitudinal direction of the wick. 
     
     
         7 . The vaporizer of  claim 1 , wherein the wick is formed of silica. 
     
     
         8 . The vaporizer of  claim 1 , wherein the accommodation portion includes an accommodation groove configured to accommodate the wick and having a length of 10 mm to 13 mm and a width of 2.4 mm to 3.0 mm. 
     
     
         9 . An aerosol generating device comprising:
 a vaporizer of  claim 1 ;   a battery configured to supply power to the vaporizer; and   a controller configured to control the power supplied to the vaporizer from the battery.   
     
     
         10 . The aerosol generating device of  claim 9 , further comprising:
 a housing including a space in which an aerosol generating article is accommodated; and   a heater configured to heat the aerosol generating article accommodated in the housing.