Heating structure and aerosol generating device and system including the same

Abstract

A heating structure includes a first body portion having a first length and a first cross-sectional shape and a second body portion connected to the first body portion and having a second length and a second cross-sectional shape different from the first cross-sectional shape.

1 . A heating structure comprising:
 a first body portion having a first length and a first cross-sectional shape; and   a second body portion connected to the first body portion and having a second length and a second cross-sectional shape different from the first cross-sectional shape.   
     
     
         2 . The heating structure of  claim 1 , wherein the first body portion comprises:
 a first wall having a width in a first direction intersecting with a first longitudinal direction of the first body portion; and   a second wall having a width in a second direction intersecting with each of the first longitudinal direction of the first body portion and the first direction.   
     
     
         3 . The heating structure of  claim 2 , wherein the first wall and the second wall forms the first cross-sectional shape that changes along the first length. 
     
     
         4 . The heating structure of  claim 3 , wherein a variation in the width in the first direction of the first wall in the first longitudinal direction is smaller than a variation in the width in the second direction of the second wall in the first longitudinal direction. 
     
     
         5 . The heating structure of  claim 4 , wherein the first cross-sectional shape changes from a substantially circular shape to a substantially elliptical shape along the first length. 
     
     
         6 . The heating structure of  claim 2 , wherein the second body portion comprises:
 a third wall connected to the first wall and having the width in the first direction intersecting with a second longitudinal direction of the second body portion; and   a fourth wall connected to the second wall and having the width in the second direction intersecting with each of the second longitudinal direction of the second body portion and the first direction.   
     
     
         7 . The heating structure of  claim 6 , wherein the width in the first direction of the third wall and the width in the second direction of the fourth wall are substantially constant along the second length. 
     
     
         8 . The heating structure of  claim 6 , wherein the third wall has a substantially curved surface. 
     
     
         9 . The heating structure of  claim 6 , wherein the fourth wall has a substantially flat surface. 
     
     
         10 . The heating structure of  claim 6 , wherein the second body portion further comprises a protrusion protruding from the third wall. 
     
     
         11 . An aerosol generating system comprising:
 an aerosol generating article; and   an aerosol generating device comprising a heating structure configured to accommodate and heat the aerosol generating article,   wherein the heating structure comprises:
 a first body portion having a first length and a first cross-sectional shape; and 
 a second body portion connected to the first body portion and having a second length and a second cross-sectional shape different from the first cross-sectional shape. 
   
     
     
         12 . The aerosol generating system of  claim 11 , wherein the first body portion comprises:
 a first wall having a width in a first direction intersecting with a first longitudinal direction of the first body portion; and   a second wall having a width in a second direction intersecting with each of the first longitudinal direction of the first body portion and the first direction.   
     
     
         13 . The aerosol generating system of  claim 12 , wherein the second body portion comprises:
 a third wall connected to the first wall and having the width in the first direction intersecting with a second longitudinal direction of the second body portion; and   a fourth wall connected to the second wall and having the width in the second direction intersecting with each of the second longitudinal direction of the second body portion and the first direction.   
     
     
         14 . The aerosol generating system of  claim 13 , wherein, when the aerosol generating article is accommodated, the third wall is configured to press the aerosol generating article, and the fourth wall is configured to form an airflow path with the aerosol generating article. 
     
     
         15 . The aerosol generating system of  claim 13 , wherein the second body portion further comprises a protrusion protruding from the third wall.