Aerosol-generating device

Abstract

An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a body; a cartridge coupled to the body and comprising: a first chamber configured to store a liquid; a second chamber formed separately from the first chamber; a wick disposed in the second chamber and in communication with the first chamber; a heater configured to heat the wick; and a cartridge inlet allowing the second chamber to communicate with an outside of the cartridge; a cap configured to cover the cartridge and comprising a cap inlet allowing communication between an inside and an outside of the cartridge; and an inflow passage interconnecting the cap inlet and the cartridge inlet, wherein at least a portion of the inflow passage is formed between the cap and the cartridge.

1 . An aerosol-generating device comprising:
 a body;   a cartridge coupled to the body and comprising:
 a first chamber configured to store a liquid; 
 a second chamber formed separately from the first chamber; 
 a wick disposed in the second chamber and in communication with the first chamber; 
 a heater configured to heat the wick; and 
 a cartridge inlet allowing the second chamber to communicate with an outside of the cartridge; 
   a cap configured to cover the cartridge and comprising a cap inlet allowing communication between an inside and an outside of the cartridge; and   an inflow passage interconnecting the cap inlet and the cartridge inlet, wherein at least a portion of the inflow passage is formed between the cap and the cartridge.   
     
     
         2 . The aerosol-generating device according to  claim 1 , further comprising a sensor mounted in the body and disposed adjacent to the cartridge inlet, wherein the sensor is configured to sense flow of air passing through the cartridge inlet. 
     
     
         3 . The aerosol-generating device according to  claim 2 , wherein the body comprises:
 a lower body; and   a mount coupled to an upper side of the lower body and configured to receive a lower portion of the cartridge,   wherein the mount comprises a sensor accommodation portion formed at one side of the mount between the sensor and the cartridge and comprising a sensing hole open toward the cartridge.   
     
     
         4 . The aerosol-generating device according to  claim 3 , wherein the cartridge comprises:
 a first container comprising the first chamber; and   a lower case coupled to the first container and adjacent to one side of the sensor accommodation portion,   wherein the second chamber is provided at the lower case and the cartridge inlet is formed at one side of the lower case.   
     
     
         5 . The aerosol-generating device according to  claim 4 , wherein the sensing hole and the cartridge inlet are aligned, and
 wherein the sensor is positioned corresponding to the sensing hole and the cartridge inlet.   
     
     
         6 . The aerosol-generating device according to  claim 4 , wherein the lower case comprises:
 a case portion configured to form the second chamber and comprising the cartridge inlet, wherein the case portion is positioned adjacent to the one side of the sensor accommodation portion; and   an extension portion laterally extending from an upper end of the case portion and disposed below the first chamber, wherein the extension portion is positioned to adjacent to an upper portion of the sensor accommodation portion.   
     
     
         7 . The aerosol-generating device according to  claim 6 , wherein the inflow passage comprises a first passage in communication with the cartridge inlet and passing between the sensor accommodation portion and the lower case, and
 wherein the lower case comprises a passage-forming portion corresponding to a recessed portion of the extension portion to provide a space between the extension portion and the sensor accommodation portion to form at least a portion of the first passage.   
     
     
         8 . The aerosol-generating device according to  claim 3 , wherein the inflow passage comprises a first passage in communication with the cartridge inlet and formed between the mount and the cartridge. 
     
     
         9 . The aerosol-generating device according to  claim 8 , wherein the inflow passage further comprises a second passage formed between a side of the cap and a side of the first chamber to interconnect the cap inlet and the first passage. 
     
     
         10 . The aerosol-generating device according to  claim 4 , wherein the cartridge comprises a frame partitioning an inside of the lower case to form the second chamber and a connection passage, the frame comprising a chamber inlet allowing the second chamber to communicate with the connection passage, and
 wherein the connection passage interconnects the cartridge inlet and the chamber inlet.   
     
     
         11 . The aerosol-generating device according to  claim 10 , wherein the cartridge comprises:
 a blocking wall protruding upwards in the connection passage; and   a round surface defining a portion of the connection passage and disposed adjacent to an upper end of the blocking wall, wherein the round surface extends toward the chamber inlet.   
     
     
         12 . The aerosol-generating device according to  claim 2 , further comprising a waterproof film disposed between the cartridge inlet and the sensor. 
     
     
         13 . The aerosol-generating device according to  claim 1 , wherein the cap inlet is formed at an upper end of the cap. 
     
     
         14 . An aerosol-generating device comprising:
 a cartridge comprising:
 a first container provided with a first chamber configured to store a liquid; 
 a second container coupled to the first container and provided with a second chamber; 
 a cartridge inlet allowing the second chamber to communicate with an outside of the second container; 
 a wick disposed in the second chamber and in communication with the first chamber, and 
 a heater configured to heat the wick; 
   a sensor configured to sense flow of air passing through the cartridge inlet; and   a mount configured to receive the cartridge and comprising a sensor accommodation portion adjacent to the cartridge and configured to accommodate the sensor.   
     
     
         15 . The aerosol-generating device according to  claim 14 , wherein the second container is adjacent to the sensor accommodation portion, and
 wherein the aerosol-generating device further comprises a first passage in communication with the cartridge inlet and passing between the sensor accommodation portion and the second container.