Aerosol generating device comprising heater

Abstract

An aerosol generating device includes a cavity configured to accommodate an aerosol generating article and a heater configured to heat the aerosol generating article, wherein the heater may include a plasma discharge space, a partition configured to separate the cavity and the plasma discharge space, and a plurality of plasma electrodes disposed on the partition.

What is claimed is: 
     
         1 . An aerosol generating device comprising:
 a cavity configured to accommodate an aerosol generating article; and   a heater configured to heat the aerosol generating article, wherein the heater comprises:
 a plasma discharge space; 
 a partition configured to separate the cavity and the plasma discharge space; and 
 a plurality of plasma electrodes disposed on the partition. 
   
     
     
         2 . The aerosol generating device of  claim 1 , wherein the partition comprises an extension extending along a length of the cavity. 
     
     
         3 . The aerosol generating device of  claim 1 , wherein the partition comprises a tapered portion that is tapered along a length of the cavity. 
     
     
         4 . The aerosol generating device of  claim 1 , wherein the plasma discharge space is disposed to be in contact with the cavity. 
     
     
         5 . The aerosol generating device of  claim 1 , wherein the plasma discharge space is positioned inside the cavity and at least partially surrounded by the cavity. 
     
     
         6 . The aerosol generating device of  claim 1 , wherein the plasma discharge space is configured to at least partially surround the cavity. 
     
     
         7 . The aerosol generating device of  claim 1 , further comprising:
 a connecting electrode electrically connected to the plurality of plasma electrodes.   
     
     
         8 . The aerosol generating device of  claim 7 , wherein the connecting electrode is disposed to be separated from the plasma discharge space. 
     
     
         9 . The aerosol generating device of  claim 7 , wherein the connecting electrode is at least partially surrounded by the plasma discharge space. 
     
     
         10 . The aerosol generating device of  claim 7 , wherein the connecting electrode is configured to at least partially surround the plasma discharge space. 
     
     
         11 . The aerosol generating device of  claim 1 , wherein the plurality of plasma electrodes is arranged on an inner surface of the partition that interfaces with the cavity. 
     
     
         12 . The aerosol generating device of  claim 1 , wherein the plurality of plasma electrodes is arranged on an inner surface of the partition that does not interface with the cavity. 
     
     
         13 . The aerosol generating device of  claim 1 , wherein each of the plurality of plasma electrodes comprises a piezoelectric transducer. 
     
     
         14 . The aerosol generating device of  claim 1 , wherein the heater is configured to substantially operate without preheating. 
     
     
         15 . The aerosol generating device of  claim 1 , wherein the heater is configured to generate a temperature change ranging from about 200° C. to about 600° C.