Aerosol generating device

Abstract

An aerosol generating device comprises a case; a heater located in the case and configured to generate heat; and a support configured to provide a space in which an aerosol-generating article is heated and generates an aerosol, and including a cavity for accommodating an aerosol-generating article, an inlet for receiving the aerosol-generating article into the cavity, an opening portion provided on a side surface to open at least a portion of the cavity, and a rib located on an inner circumferential surface and configured to guide movement of the aerosol-generating article against a direction toward the opening portion.

1 . An aerosol generating device comprising:
 a case;   a heater arranged in the case and configured to generate heat; and   a support configured to provide a space in which an aerosol-generating article is heated and generates an aerosol, and comprising:   a cavity for accommodating the aerosol-generating article;   an inlet for receiving the aerosol-generating article into the cavity;   an opening portion located on a side surface of the support such that the cavity is exposed out of the support; and   a rib located on an inner circumferential surface of the support and configured to guide movement of the aerosol-generating article against a direction toward the opening portion.   
     
     
         2 . The aerosol generating device of  claim 1 , wherein
 the rib protrudes toward the cavity from the inner surface of the support, and   a surface of the rib is inclined with respect to an extending direction of the cavity.   
     
     
         3 . The aerosol generating device of  claim 2 , wherein a distance from a center of the cavity to the rib is greater than or equal to a radius of a horizontal cross-section of the aerosol-generating article having a cylindrical shape. 
     
     
         4 . The aerosol generating device of  claim 1 , wherein
 at least a portion of a side surface of the opening portion includes a guide portion inclined toward inside of the cavity such that a rotational movement of the aerosol-generating article in the cavity is guided by the guide portion.   
     
     
         5 . The aerosol generating device of  claim 1 , wherein the opening portion includes an inclined portion which is inclined with respect to an extending direction of the cavity. 
     
     
         6 . The aerosol generating device of  claim 1 , wherein
 a first opening angle corresponding to a lower end of the opening portion is greater than a second opening angle corresponding to an upper end of the opening portion.   
     
     
         7 . The aerosol generating device of  claim 6 , wherein the first opening angle is 120 degrees to 180 degrees, and the second opening angle is 90 degrees to 120 degrees. 
     
     
         8 . The aerosol generating device of  claim 1 , wherein the rib extends along at least a portion of a perimeter of the opening portion. 
     
     
         9 . The aerosol generating device of  claim 1 , wherein the rib is arranged in multiple numbers. 
     
     
         10 . The aerosol generating device of  claim 1 , wherein the support further comprises a through hole in a bottom of the support facing an end of the aerosol-generating article when the aerosol-generating article is inserted into the cavity, and the heater is arranged to pass through the through hole. 
     
     
         11 . The aerosol generating device of  claim 10 , wherein the through hole includes an inclined portion where the through hole becomes larger along a direction toward the cavity. 
     
     
         12 . The aerosol generating device of  claim 1 , wherein the support is detachably coupled to the case. 
     
     
         13 . The aerosol generating device of  claim 1 , wherein
 the case includes an accommodating portion for accommodating the support, and   an air passage for introducing air into the cavity is formed between the accommodating portion and the support.   
     
     
         14 . The aerosol generating device of  claim 13 , wherein
 the support further includes a through hole in a bottom surface of the support facing an end of the aerosol-generating article when the aerosol-generating article is inserted into the cavity,   the heater is arranged to pass through the through hole,   the opening portion provides fluid communication between the accommodating portion and the cavity, and   the air passage includes a main air passage through which air flows into the cavity through the through hole, and a sub air passage through which air flows into the cavity through the opening portion.