Aerosol generating device and operating method thereof

Abstract

An aerosol generating device includes a main body and a cartridge detachably coupled to the main body, wherein the cartridge includes a storage tank storing an aerosol generating material, a heat generating structure configured to heat the aerosol generating material, and a wick configured to supply the aerosol generating material stored in the storage tank to the heat generating structure, the main body includes a cartridge detection circuit configured to detect a temperature of the heat generating structure of the cartridge, wherein a capacitor is not coupled to an output terminal of the cartridge detection circuit, and a processor electrically connected to the cartridge detection circuit, and the processor is configured to detect a temperature of the heat generating structure through the cartridge detection circuit and, on the basis of the detected temperature of the heat generating structure, control power supply to the cartridge.

What is claimed is: 
     
         1 . An aerosol generating device comprising:
 a main body; and   a cartridge detachably coupled to the main body,   wherein the cartridge comprises: a storage tank storing an aerosol generating material; a heat generating structure configured to heat the aerosol generating material; and a wick configured to supply the aerosol generating material stored in the storage tank to the heat generating structure,   the main body comprises: a cartridge detection circuit configured to detect a temperature of the heat generating structure of the cartridge, wherein a capacitor is not coupled to an output terminal of the cartridge detection circuit; and a processor electrically connected to the cartridge detection circuit, and   the processor is configured to: detect a temperature of the heat generating structure through the cartridge detection circuit; and control power supply to the cartridge, on the basis of the detected temperature of the heat generating structure.   
     
     
         2 . The aerosol generating device of  claim 1 , wherein the processor is further configured to:
 compare the detected temperature of the heat generating structure with a threshold temperature; and   stop the power supply to the cartridge, on the basis of the detected temperature of the heat generating structure exceeding the threshold temperature.   
     
     
         3 . The aerosol generating device of  claim 2 , wherein the threshold temperature is a preset temperature within a range of 210° C. to 260° C. 
     
     
         4 . The aerosol generating device of  claim 1 , wherein the processor is further configured to:
 acquire a temperature change amount of the heat generating structure according to the detected temperature of the heat generating structure;   compare the acquired temperature change amount of the heat generating structure with a threshold change amount; and   stop the power supply to the cartridge, on the basis of the acquired temperature change amount of the heat generating structure exceeding the threshold change amount.   
     
     
         5 . The aerosol generating device of  claim 1 , wherein the main body further comprises a puff sensor configured to detect a puff by a user, and the processor is further configured to detect the temperature of the heat generating structure through the cartridge detection circuit, on the basis of the puff by the user detected through the puff sensor. 
     
     
         6 . The aerosol generating device of  claim 5 , wherein the processor is further configured to detect the temperature of the heat generating structure after 1 μs to 200 μs from a point in time when the puff by the user is detected through the puff sensor. 
     
     
         7 . The aerosol generating device of  claim 1 , wherein the processor is further configured to detect a resistance value of the heat generating structure. 
     
     
         8 . The aerosol generating device of  claim 1 , wherein the heat generating structure is a coil heater extending to a circumference of the wick. 
     
     
         9 . An operating method of an aerosol generating device comprising:
 detecting a temperature of a heat generating structure included in a cartridge, through a cartridge detection circuit comprising an output terminal to which a capacitor is not connected; and   controlling power supply to the cartridge, on the basis of the detected temperature of the heat generating structure.   
     
     
         10 . The operating method of  claim 9 , wherein the controlling of the power supply to the cartridge comprises:
 comparing the detected temperature of the heat generating structure with a threshold temperature; and   stopping the power supply to the cartridge, on the basis of the detected temperature of the heat generating structure exceeding the threshold temperature.   
     
     
         11 . The operating method of  claim 10 , wherein the threshold temperature is a preset temperature within a range of 210° C. to 260° C. 
     
     
         12 . The operating method of  claim 9 , wherein the controlling of the power supply to the cartridge comprises:
 acquiring a temperature change amount of the heat generating structure according to the detected temperature of the heat generating structure;   comparing the acquired temperature change amount of the heat generating structure with a threshold change amount; and   stopping the power supply to the cartridge, on the basis of the acquired temperature change amount of the heat generating structure exceeding the threshold change amount.   
     
     
         13 . The operating method of  claim 9 , wherein the detecting of the temperature of the heat generating structure comprises detecting the temperature of the heat generating structure through the cartridge detection circuit, on the basis of a puff by a user detected through a puff sensor. 
     
     
         14 . The operating method of  claim 13 , further comprising detecting the temperature of the heat generating structure after 1 μs to 200 μs from a point in time when the puff by the user is detected through the puff sensor. 
     
     
         15 . The operating method of  claim 9 , wherein the detecting of the temperature of the heat generating structure comprises detecting a resistance value of the heat generating structure.