Heater assembly for aerosol generating device and aerosol generating device including the same

Abstract

A heater assembly for an aerosol generating device includes a body including an accommodation space for accommodating an aerosol generating article, a first cover coupled to the body and including an article insertion portion into which the aerosol generating article is inserted, a support unit provided inside the body and the first cover and surrounding the aerosol generating article accommodated in the accommodation space, and a heater provided between an inner surface and an outer surface of the support unit and configured to heat the aerosol generating article by applying a magnetic field to a susceptor in the accommodation space, wherein the heater completely overlaps the support unit, based on a second direction crossing a first direction in which the support unit extends.

What is claimed is: 
     
         1 . A heater assembly for an aerosol generating device, the heater assembly comprising:
 a body including an accommodation space for accommodating an aerosol generating article;   a first cover coupled to the body and including an article insertion portion into which the aerosol generating article is inserted;   a support unit provided inside the body and the first cover and surrounding the aerosol generating article accommodated in the accommodation space; and   a heater provided between an inner surface and an outer surface of the support unit and configured to heat the aerosol generating article by applying a magnetic field to a susceptor in the accommodation space,   wherein the heater completely overlaps the support unit, based on a second direction crossing a first direction in which the support unit extends.   
     
     
         2 . The heater assembly of  claim 1 , wherein the support unit and the heater are insert-injected. 
     
     
         3 . The heater assembly of  claim 1 , wherein the heater has a cross-section extending in the first direction when cut based on a plane passing each of the first direction in which the support unit extends and the second direction crossing the first direction. 
     
     
         4 . The heater assembly of  claim 3 , wherein a frequency of the magnetic field applied to the susceptor is 5 MHz or more. 
     
     
         5 . The heater assembly of  claim 1 , wherein a gap between adjacent portions of the heater on a first side of the support unit is different from a gap between adjacent portions of the heater on a second side of the support unit. 
     
     
         6 . The heater assembly of  claim 1 , wherein the heater includes a first heater and a second heater, which are arranged in different portions of the support unit. 
     
     
         7 . The heater assembly of  claim 1 , further comprising a sensing unit supported by the support unit inside the body and detecting a temperature of at least one of the support unit and the heater. 
     
     
         8 . The heater assembly of  claim 7 , further comprising a sensing connection unit provided at a portion where the support unit is connected to the sensing unit and including a metal material. 
     
     
         9 . The heater assembly of  claim 1 , wherein the first cover further includes a cover insulation member that extends in a direction in which the heater extends and is between the heater and the body. 
     
     
         10 . The heater assembly of  claim 9 , wherein, when the first cover is coupled to the body, the cover insulation member is inserted into the body and surrounds a part of an outer side of the heater. 
     
     
         11 . The heater assembly of  claim 1 , further comprising an antenna provided inside the body to surround at least a part of an outer side of the heater and configured to recognize whether the aerosol generating article is accommodated in the accommodation space. 
     
     
         12 . The heater assembly of  claim 11 , further comprising a shielding unit provided between the antenna and the body to surround at least a part of an outer side of the antenna. 
     
     
         13 . The heater assembly of  claim 1 , further comprising:
 a second cover coupled to the body to form the accommodation space together with the body and the first cover; and   a sealing portion inserted into a through-hole formed in the second cover and configured to seal the through-hole.   
     
     
         14 . A heater assembly for an aerosol generating device, the heater assembly comprising:
 a body including an accommodation space for accommodating an aerosol generating article;   a first cover coupled to the body and including an article insertion portion into which the aerosol generating article is inserted;   a support unit provided inside the body and the first cover and surrounding the aerosol generating article accommodated in the accommodation space; and   a heater protruding from an inner surface of the support unit toward the accommodation space and configured to heat the aerosol generating article by applying a magnetic field to a susceptor in the accommodation space.   
     
     
         15 . An aerosol generating device comprising:
 the heater assembly according to  claim 1 ;   a battery supplying power to the heater assembly for the aerosol generating device; and   a controller configured to control an operation of the heater assembly for the aerosol generating device.   
     
     
         16 . An aerosol generating device comprising:
 the heater assembly according to claim  14 ;   a battery supplying power to the heater assembly for the aerosol generating device; and   a controller configured to control an operation of the heater assembly for the aerosol generating device.