Atomizer and electronic atomization device

Abstract

An atomizer includes: an aerosol-forming article having formed therein an accommodating cavity for accommodating an aerosol-forming substrate; and a suction nozzle assembly engaged with the aerosol-forming article, the suction nozzle assembly having an air inlet passage and an air outlet passage respectively in communication with the accommodating cavity and an assistance air passage directly or indirectly communicating the air outlet passage with external air.

What is claimed is: 
     
         1 . An atomizer, comprising:
 an aerosol-forming article having formed therein an accommodating cavity configured to accommodate an aerosol-forming substrate; and   a suction nozzle assembly engaged with the aerosol-forming article, the suction nozzle assembly comprising an air inlet passage and an air outlet passage respectively in communication with the accommodating cavity and an assistance air passage directly or indirectly communicating the air outlet passage with external air.   
     
     
         2 . The atomizer of  claim 1 , wherein the suction nozzle assembly comprises a suction nozzle, and
 wherein an outer surface of the suction nozzle is recessed to form the assistance air passage.   
     
     
         3 . The atomizer of  claim 1 , wherein the assistance air passage is formed in the suction nozzle assembly and communicates the air outlet passage with the air inlet passage. 
     
     
         4 . The atomizer of  claim 3 , wherein the suction nozzle assembly comprises a suction nozzle and a sealing member at least partially arranged between the aerosol-forming article and the suction nozzle, and
 wherein the suction nozzle and/or the sealing member define the assistance air passage.   
     
     
         5 . The atomizer of  claim 4 , wherein the suction nozzle comprises an inhalation passage extending downward from a top surface of the suction nozzle, an accommodating hole extending upward from a bottom surface of the suction nozzle, and a blocking wall arranged between the inhalation passage and the accommodating hole,
 wherein the sealing member is accommodated in the accommodating hole and abuts against the blocking wall,   wherein the air outlet passage comprises the inhalation passage, and   wherein the blocking wall defines at least part of the boundary surface of the assistance air passage.   
     
     
         6 . The atomizer of  claim 5 , wherein a first groove is formed on the blocking wall through recessing, and
 wherein the first groove is covered by the sealing member to form the assistance air passage.   
     
     
         7 . The atomizer of  claim 5 , wherein the assistance air passage penetrates the blocking wall and communicates the air inlet passage with the inhalation passage. 
     
     
         8 . The atomizer of  claim 5 , wherein a second groove is formed on a top surface of the sealing member through recessing, and
 wherein the second groove is covered by the blocking wall to form the assistance air passage.   
     
     
         9 . The atomizer of  claim 4 , wherein the air inlet passage comprises a leading-in passage formed between the suction nozzle and the sealing member, and
 wherein the assistance air passage is in communication with the leading-in passage.   
     
     
         10 . An electronic atomization device, comprising:
 the atomizer of  claim 1 ; and   a power supply device engaged with the atomizer.