Device for generating aerosol

Abstract

An aerosol-generating device is disclosed. The aerosol-generating device comprising: a pipe part defining an insertion space and comprising a seating part extending from a lower portion and an extension part extending from an upper portion; and a cartridge configured to be seated on the seating part, wherein a lower surface of the extension part is adjacent to an upper surface of the cartridge when the cartridge is seated on the seating part, wherein the lower surface of the extension part comprises an inclined surface such that a gap between the cartridge and the lower surface is gradually increased toward an end of the extension part.

1 . An aerosol-generating device comprising:
 a pipe part defining an insertion space and comprising a seating part extending from a lower portion and an extension part extending from an upper portion; and   a cartridge configured to be seated on the seating part, wherein a lower surface of the extension part is adjacent to an upper surface of the cartridge when the cartridge is seated on the seating part,   wherein the lower surface of the extension part comprises an inclined surface such that a gap between the cartridge and the lower surface is gradually increased toward an end of the extension part.   
     
     
         2 . The aerosol-generating device according to  claim 1 , wherein the cartridge comprises an inlet at the upper surface of the cartridge. 
     
     
         3 . The aerosol-generating device according to  claim 2 , further comprising a sensor disposed at the extension part and configured to sense air flow. 
     
     
         4 . The aerosol-generating device according to  claim 3 , further comprising a sensing hole formed at the lower surface of the extension part at a position corresponding to the sensor. 
     
     
         5 . The aerosol-generating device according to  claim 4 , wherein the lower surface of the extension part further comprises a flat surface extending horizontally between the inclined surface and a portion of the pipe part which meets the extension part. 
     
     
         6 . The aerosol-generating device according to  claim 5 , wherein a first distance between the inclined surface and the upper surface of the cartridge at the end of the extension part is greater than a second distance between the flat surface and the upper surface of the cartridge. 
     
     
         7 . The aerosol-generating device according to  claim 5 , wherein the sensing hole is formed at the flat surface. 
     
     
         8 . The aerosol-generating device according to  claim 4 , wherein the inlet is formed at a position corresponding to the inclined surface and is misaligned with the sensing hole. 
     
     
         9 . The aerosol-generating device according to  claim 8 , wherein the cartridge comprises:
 a first chamber configured to store a liquid;   a second chamber disposed below the first chamber;   a wick disposed in the second chamber and configured to receive the liquid from the first chamber;   a heater configured to heat the wick;   an outlet leading from the second chamber to the insertion space; and   an inflow passage extending from the inlet to the second chamber in a direction parallel with a longitudinal direction of the first chamber.   
     
     
         10 . The aerosol-generating device according to  claim 7 , wherein the inlet is positioned to face the sensing hole. 
     
     
         11 . The aerosol-generating device according to  claim 10 , wherein the cartridge comprises:
 a first chamber configured to store a liquid, wherein the inlet is positioned above the first chamber;   a second chamber disposed below the first chamber;   a wick disposed in the second chamber and configured to receive the liquid from the first chamber;   a heater configured to heat the wick;   an outlet leading from the second chamber to the insertion space;   a first inflow passage extending in a direction parallel to a longitudinal direction of the first chamber and leading to the second chamber; and   a second inflow passage formed above the first chamber and connecting the inlet to the first inflow passage.