Atomizer and aerosol generating device with same

Abstract

The atomizer includes a base provided with an air inlet; a liquid storage member provided with a liquid storage chamber therein; and an atomization assembly. The atomizing assembly includes a fixing seat and an atomizing core, an atomizing chamber communicating with the liquid storage chamber and the air inlet is formed in the fixing seat, the atomizing core is provided in the atomizing chamber and atomizes the aerosol-forming substrate provided by the liquid storage chamber, the smoke formed by atomization is output under the drive of the gas introduced by the air inlet; a returning air channel is formed on the fixing seat, the returning air channel is connected between the air inlet and the liquid storage chamber. The atomizer has a returning air channel formed on the fixing seat to balance the air pressure difference in the liquid storage chamber and achieve smooth liquid release.

What is claimed is: 
     
         1 . An atomizer comprising:
 a base provided with an air inlet;   a liquid storage member provided on the base, and forming a liquid storage chamber for storing the aerosol-forming substrate; and   an atomizing assembly provided on the base; the atomizing assembly comprised a fixing seat and an atomizing core, an atomizing chamber communicating with the liquid storage chamber and the air inlet is formed in the fixing seat, the atomizing core is provided in the atomizing chamber and atomizes the aerosol-forming substrate provided by the liquid storage chamber, the smoke formed by atomization is output under the drive of the gas introduced by the air inlet;   wherein, a returning air channel is formed on the fixing seat, the returning air channel is connected between the air inlet and the liquid storage chamber.   
     
     
         2 . The atomizer according to  claim 1 , wherein the fixed seat comprises a base and a liquid sealing member, the base is supported on the base and its inner cavity is configured to form the atomization chamber, the outer wall of the base is provided with a return air groove; the liquid sealing member is set outside the base and surrounds the air return groove to form the air return channel. 
     
     
         3 . The atomizer according to  claim 2 , wherein the return air groove is arranged in a labyrinth along the circumference of the outer wall of the base. 
     
     
         4 . The atomizer according to  claim 2 , wherein the top of the base is provided with a smoke outlet hole, and the outer wall of the base is also configured with a communicating air passage, and the communicating air passage is connected between the atomization chamber and the smoke outlet hole. 
     
     
         5 . The atomizer according to  claim 4 , wherein the inlet end of the returning air channel is in communication with the lower end of the communicating air passage and the atomizing chamber, the gas outlet end of the returning air channel is in communication with the liquid storage chamber. 
     
     
         6 . The atomizer according to  claim 2 , wherein the liquid sealing member is configured to form the bottom of the liquid storage chamber. 
     
     
         7 . The atomizer according to  claim 2 , wherein the liquid sealing member is a liquid-sealing silica gel which is sleeved outside of the base. 
     
     
         8 . The atomizer according to  claim 2 , wherein the base comprises a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, two bosses protrude from the opposite inner sides of the side wall, the atomizing assembly is supported on two bosses; the atomizer comprises a liquid absorbing member, the liquid absorbing member is disposed between the two bosses and below the atomizing assembly. 
     
     
         9 . The atomizer according to  claim 8 , wherein the atomizing assembly comprises an atomizing core sealing member; the atomizing core is sleeved in the atomizing core sealing member, both are supported on the two bosses; the liquid sealing member is provided with a first liquid inlet hole, a second liquid inlet hole is defined at the base, a third liquid inlet hole a is defined at the atomizing core sealing member; the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole are connected together to form a liquid inlet channel for draining the aerosol-forming substrate in the liquid storage chamber to the atomizing core. 
     
     
         10 . An aerosol generating device, wherein the aerosol generating device comprises the atomizer according to  claim 1 .