Atomizer and aerosol generating device

Abstract

Provided are an atomizer and an aerosol generating device; in the atomizer structure, a porous medium is arranged in a liquid storage cavity, the porous medium can adsorb an aerosol forming substrate in the liquid storage cavity, and the adsorbed aerosol forming substrate can be held in the porous medium. When the atomizer operates, the aerosol forming substrate held in the porous medium can be slowly and uniformly transmitted to a liquid inlet through the porous medium such that the speed at which the aerosol forming substrate flows into the atomizing cavity through the liquid inlet is reduced, and the situation that the speed of flow of the aerosol forming substrate in the liquid storage cavity entering the atomizing cavity is too high is prevented, thus effectively reducing the risk of liquid leakage.

1 . An atomizer, comprising:
 a liquid storage member having a liquid storage cavity therein for storing an aerosol-forming substrate, wherein the liquid storage member is provided with a smoke outlet for the user to inhale smoke;   an atomizing core provided in the liquid storage member, wherein an atomizing cavity in communication with the smoke outlet is formed inside the atomizing core, the atomizing core is provided with a liquid inlet in communication with the liquid storage cavity and the atomizing cavity; and   a porous medium provided in the liquid storage cavity, wherein the porous medium is configured to adsorb the aerosol-forming substrate in the liquid storage cavity and hold the adsorbed aerosol-forming substrate in the porous medium;   wherein the aerosol-forming substrate held in the porous medium can be transmitted to the liquid inlet through the porous medium to slow down the flow rate of the aerosol-forming substrate into the atomizing cavity through the liquid inlet.   
     
     
         2 . The atomizer as claimed in  claim 1 , wherein the porous medium is made of at least one of porous cotton liquid-conducting member, porous sponge liquid-conducting member, porous glass fiber liquid-conducting member, porous ceramic liquid-conducting member, and porous graphite liquid-conducting member. 
     
     
         3 . The atomizer as claimed in  claim 1 , wherein the porous medium is substantially columnar, the porous medium is provided with a receiving hole along its axial direction, the atomizing core is inserted into the receiving hole, the liquid inlet is located in the receiving hole, so that the porous medium covers the liquid inlet of the atomizing core. 
     
     
         4 . The atomizer as claimed in  claim 3 , wherein an outer peripheral surface of the porous medium abuts against an inner surface of the liquid storage cavity, a hole wall of the receiving hole abuts against an outer peripheral surface of the atomizing core. 
     
     
         5 . The atomizer as claimed in  claim 3 , wherein along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity. 
     
     
         6 . The atomizer as claimed in  claim 1 , wherein the atomizer further comprises a liquid-conducting layer sleeved at the outer peripheral surface of the atomizing core, the liquid-conducting layer covers the liquid inlet. 
     
     
         7 . The atomizer as claimed in  claim 6 , wherein the outer peripheral surface of the atomizing core is provided with a positioning groove for positioning the liquid-conducting layer, and the liquid-conducting layer is accommodated in the positioning groove. 
     
     
         8 . The atomizer as claimed in  claim 1 , wherein the atomizer further comprises a mouthpiece provided at the top of the liquid storage member, and the smoke outlet is provided on the mouthpiece. 
     
     
         9 . The atomizer as claimed in  claim 1 , wherein the atomizing core comprises an atomizing bracket located in the liquid storage member and a heating member for heating and atomizing the aerosol-forming substrate, the atomizing cavity is provided inside the atomizing bracket, the heating member is provided in the atomizing cavity, the atomizing bracket is provided with the liquid inlet. 
     
     
         10 . An electronic cigarette, comprising the atomizer as claimed in  claim 1 . 
     
     
         11 . The atomizer as claimed in  claim 1 , wherein along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity. 
     
     
         12 . The atomizer as claimed in  claim 4 , wherein along an axial direction of the porous medium, a height of the porous medium is equal to 35%-50% of a height of the liquid storage cavity. 
     
     
         13 . The atomizer as claimed in  claim 6 , wherein the liquid-conducting layer is several layers of liquid-conducting cotton wrapped around the atomizing core. 
     
     
         14 . The atomizer as claimed in  claim 9 , wherein the atomizer further comprises a ventilation pipe in communication with the atomizing cavity and the smoke outlet, a first end of the ventilation pipe is in communication with the smoke outlet, and a second end of the ventilation pipe is sleeved on the outside of the atomizing bracket. 
     
     
         15 . The atomizer as claimed in  claim 14 , wherein the atomizing bracket is provided with a stopper configured for abutting against the second end of the ventilation pipe. 
     
     
         16 . The atomizer as claimed in  claim 15 , wherein the stopper is an annular stopping plate protruding from an outer wall of the atomizing bracket.