Liquid storage cotton, electronic atomization assembly and electronic atomization device

Abstract

The application provides a liquid storage cotton, an electronic atomization assembly and an electronic atomization device. The liquid storage cotton includes a first liquid storage layer and a second liquid storage layer that are arranged in an axial direction; and a density of the first liquid storage layer being lower than that of the second liquid storage layer; a radial section of the second liquid storage layer is provided with a first unit and a second unit, and a density of the first unit is lower than that of the second unit; and a mounting hole is arranged in the first liquid storage layer and the second unit for being in communication with each other.

What is claimed is: 
     
         1 . A liquid storage cotton, comprising: a first liquid storage layer and a second liquid storage layer that are arranged in an axial direction;
 a density of the first liquid storage layer being lower than that of the second liquid storage layer;   wherein a radial section of the second liquid storage layer is provided with a first unit and a second unit, and a density of the first unit is lower than that of the second unit; and   wherein a mounting hole is arranged in the first liquid storage layer and the second unit for being in communication with each other.   
     
     
         2 . The liquid storage cotton according to  claim 1 , wherein the first unit wraps the second unit. 
     
     
         3 . The liquid storage cotton according to  claim 2 , wherein the mounting hole is a central mounting hole or an eccentric mounting hole of the first liquid storage layer and the second liquid storage layer. 
     
     
         4 . The liquid storage cotton according to  claim 1 , wherein the mounting hole is an eccentric mounting hole of the first liquid storage layer and the second liquid storage layer,
 a distance between a proximal hole end of the second liquid storage layer and the eccentric mounting hole is a first distance, a distance between a distal hole end of the second liquid storage layer and the eccentric mounting hole is a second distance, and a distance difference between the first distance and the second distance is within a preset length range; and   the first unit and the second unit are arranged in parallel.   
     
     
         5 . The liquid storage cotton according to  claim 4 , wherein the preset length range is an absolute value of the distance difference between the first distance and the second distance being greater than or equal to 3 mm. 
     
     
         6 . The liquid storage cotton according to  claim 1 , wherein a plurality of first units are provided, and densities of the plurality of first units gradually increase along a direction close to the mounting hole; and/or,
 a plurality of second units are provided, and densities of the plurality of second units gradually increase along a direction close to the mounting hole.   
     
     
         7 . The liquid storage cotton according to  claim 1 , wherein a plurality of first liquid storage layers are provided, and densities of the plurality of first liquid storage layers gradually increase along a direction close to the second liquid storage layer. 
     
     
         8 . The liquid storage cotton according to  claim 1 , wherein a density ratio of the second liquid storage layer to the first liquid storage layer is ranged from 1.38 to 3.20, a density ratio of the first unit to the first liquid storage layer is ranged from 1.38 to 3.20, and a density ratio of the second unit to the first liquid storage layer is ranged from 1.38 to 3.20. 
     
     
         9 . The liquid storage cotton according to  claim 8 , wherein the first unit wraps the second unit. 
     
     
         10 . The liquid storage cotton according to  claim 8 , wherein the mounting hole is an eccentric mounting hole of the first liquid storage layer and the second liquid storage layer,
 a distance between a proximal hole end of the second liquid storage layer and the eccentric mounting hole is a first distance, a distance between a distal hole end of the second liquid storage layer and the eccentric mounting hole is a second distance, and a distance difference between the first distance and the second distance is within a preset length range; and   the first unit and the second unit are arranged in parallel.   
     
     
         11 . The liquid storage cotton according to  claim 10 , wherein the preset length range is an absolute value of the distance difference between the first distance and the second distance being greater than or equal to 3 mm. 
     
     
         12 . The liquid storage cotton according to  claim 8 , wherein a plurality of first units are provided, and densities of the plurality of first units gradually increase along a direction close to the mounting hole; and/or,
 a plurality of second units are provided, and densities of the plurality of second units gradually increase along a direction close to the mounting hole.   
     
     
         13 . The liquid storage cotton according to  claim 8 , wherein a plurality of first liquid storage layers are provided, and densities of the plurality of first liquid storage layers gradually increase along a direction close to the second liquid storage layer. 
     
     
         14 . The liquid storage cotton according to  claim 1 , wherein the second liquid storage layer and the first liquid storage layer are both made of a bicomponent fiber. 
     
     
         15 . The liquid storage cotton according to  claim 14 , wherein the bicomponent fiber is one selected from a group of PP/PE, PET/PA, and PET/PE. 
     
     
         16 . The liquid storage cotton according to  claim 1 , wherein a thickness ratio of the second liquid storage layer to the first liquid storage layer is ranged from 0.5 to 2. 
     
     
         17 . The liquid storage cotton according to  claim 8 , wherein a volume ratio of the second liquid storage layer to the first liquid storage layer is 1:15 to 15:1. 
     
     
         18 . The liquid storage cotton according to  claim 8 , wherein the second liquid storage layer and the first liquid storage layer are formed in one step. 
     
     
         19 . An electronic atomization assembly, comprising a liquid storage cotton, wherein the liquid storage cotton comprises: a first liquid storage layer and a second liquid storage layer that are arranged in an axial direction;
 a density of the first liquid storage layer being lower than that of the second liquid storage layer;   wherein a radial section of the second liquid storage layer is provided with a first unit and a second unit, and a density of the first unit is lower than that of the second unit; and   wherein a mounting hole is arranged in the first liquid storage layer and the second unit for being in communication with each other.   
     
     
         20 . An electronic atomization device, comprising an electronic atomization assembly; wherein the electronic atomization assembly comprises a liquid storage cotton, and the liquid storage cotton comprises: a first liquid storage layer and a second liquid storage layer that are arranged in an axial direction;
 a density of the first liquid storage layer being lower than that of the second liquid storage layer;   wherein a radial section of the second liquid storage layer is provided with a first unit and a second unit, and a density of the first unit is lower than that of the second unit; and   wherein a mounting hole is arranged in the first liquid storage layer and the second unit for being in communication with each other.