Aerosol generating device

Abstract

Disclosed is an aerosol generating device, comprising an extraction member and a heating member, the extraction member being internally provided with a hollow cavity for accommodating an aerosol generating substrate segment, and the hollow cavity comprising a first connecting end and a second connecting end which are oppositely arranged; and the heating member comprises a heating body for heating the aerosol generating substrate segment and a sealing plug that is mounted at one end of the heating body; when the heating body extends into the hollow cavity from the second connecting end, same is inserted into the aerosol generating substrate segment that extends from the first connecting end into the hollow cavity, and the sealing plug sealingly cooperates with an end surface opening of the second connecting end. The aerosol generating device provided in the present invention improves the sealing performance of an aerosol generating substrate segment area, reduces the oxygen content in the aerosol generating substrate segment area, and reduces the generation of harmful substances when a consumer smokes a tobacco product.

What is claimed is: 
     
         1 . An aerosol generating device comprising an extraction member and a heating member, wherein:
 a hollow cavity for accommodating an aerosol generating substrate segment is arranged within said extraction member, and said hollow cavity comprises a first connecting end and a second connecting end which are oppositely arranged;   said heating member comprises a heating body for heating the aerosol generating substrate segment and a sealing plug arranged at one end of the heating body; when the heating body extends into the hollow cavity from the second connecting end, the heating body is inserted into the aerosol generation substrate segment extending into the hollow cavity from the first connecting end, and the sealing plug is sealed and fitted with an end face opening of the second connecting end.   
     
     
         2 . The aerosol generating device according to  claim 1 , wherein the sealing plug is a circular platform comprising a top surface and a bottom surface arranged back to each other, a diameter of said top surface is smaller than that of the bottom surface, the heating body is mounted on the top surface, and a tapered cavity structure sealed and fitted with an outer sidewall of the circular platform is provided in the second connecting end. 
     
     
         3 . The aerosol generating device according to  claim 2 , wherein the bottom surface is connected with a cylindrical protruding table, a diameter of said cylindrical protruding table is greater than that of the bottom surface, said cylindrical protruding table is abutted against a circumferential sidewall of the second connecting end. 
     
     
         4 . The aerosol generating device according to  claim 3 , characterized in that, a first cavity structure, a gradually expanding cavity structure and a second cavity structure that are communicated in sequence are provided within the first connecting end, the first cavity structure is located between the tapered cavity structure and the gradually expanding cavity structure, the gradually expanding cavity structure is located between the first cavity structure and the second cavity structure, an internal diameter of the first cavity structure is smaller than an external diameter of the aerosol generating substrate segment, and an internal diameter of the second cavity structure having is greater than the external diameter of the aerosol generating substrate segment. 
     
     
         5 . The aerosol generating device according to  claim 4 , characterized in that, a first transition cavity structure and a second transition cavity structure are further disposed in the second connecting end, the first transition cavity structure is located between the second transition cavity structure and the tapered cavity structure, the second transition cavity structure is located between the first transition cavity structure and the first cavity structure, an inner wall of the first transition cavity structure is adapted to connect to an outer wall of the heating body, and an inner diameter of the second transition cavity structure is larger than an outer diameter of the heating body. 
     
     
         6 . The aerosol generating device according to  claim 5 , characterized in that, the extraction member comprises a first body and a second body which are detachably and sealably connected, the tapered cavity structure is disposed within the first body, the first cavity structure, the tapered cavity structure and the second cavity structure are all disposed within the second body, the first body is made of a flexible material, and the second body is made of a rigid material. 
     
     
         7 . The aerosol generating device according to  claim 6 , characterized in that, the aerosol generating device further comprises an aerosol medium configured as an independent and replaceable unitary body for use with the aerosol generating device, said aerosol medium comprises the aerosol generating substrate segment, the aerosol extraction section and the functional filter of which end surfaces abutting each other in turn, the aerosol extraction section is located between the aerosol generating substrate segment and the functional filter, an outer sidewall of aerosol generating substrate segment is sealably attached onto the inner wall inside the first connecting end, the aerosol extraction section is located outside the first connecting end. 
     
     
         8 . The aerosol generating device according to  claim 7 , characterized in that, a cavity penetrating the length direction of the aerosol extraction section is provided within the aerosol extraction section, and at least one through hole communicating with said cavity is opened on an outer sidewall of the aerosol extraction section, said at least one through hole penetrates said aerosol extraction section in a direction perpendicular to the length of the aerosol extraction section. 
     
     
         9 . The aerosol generating device according to  claim 8 , characterized in that, said extraction member further comprises a first housing, the first housing includes an installation end surface on which is provided with a gradually expanding opening structure, one end of the gradually expanding opening structure is mounted on a circumferential sidewall of the installation end surface, the other end of the gradually expanding opening structure expandingly extends in a direction away from the installation end surface, and when aerosol generating substrate segment is mounted within the first connecting end, said at least one through hole is located within the gradually expanding opening structure. 
     
     
         10 . The aerosol generating device according to  claim 9 , characterized in that, the first housing further comprises a sealing end surface arranged opposite to the installation end surface, a limiting member is arranged on an inner wall of the sealing end surface, and when the cylindrical protruding table is mounted within the second connecting end, the limiting member is abutted against an outer sidewall of the cylindrical protruding table. 
     
     
         11 . The aerosol generating device according to  claim 10 , characterized in that, said extraction member further comprises a second housing detachably connected to the first housing, a power supply and a control module, said cylindrical protruding table is mounted within the second housing, the control module is in communication with the power supply to control the heating body to start or stop and to maintain the temperature of the heating body during use.