Filter assembly and cartridge

Abstract

A filter assembly and a cartridge are provided. The filter assembly includes a filter member and a functional member. The filter member defines a receiving space in a radial direction of the filter member. The functional member is fixed in the receiving space. The filter member is in contact with part of an outer surface of the functional member.

What is claimed is: 
     
         1 . A filter assembly comprising:
 a filter member defining a receiving space in a radial direction of the filter member; and   a functional member fixed in the receiving space, wherein the filter member is in contact with part of an outer surface of the functional member.   
     
     
         2 . The filter assembly of  claim 1 , wherein the filter member has a first surface and a second surface opposite to each other in the radial direction of the filter member, and the receiving space extends through the first surface and the second surface. 
     
     
         3 . The filter assembly of  claim 1 , wherein the functional member abuts against a sidewall of the receiving space. 
     
     
         4 . The filter assembly of  claim 3 , wherein the filter member is in interference fit with the functional member, and in an axial direction of the filter member, a ratio of an opening dimension of the receiving space to a dimension of the functional member is (0.9-0.95): 1. 
     
     
         5 . The filter assembly of  claim 4 , wherein a groove is defined on the sidewall, and part of the functional member is disposed in the groove. 
     
     
         6 . The filter assembly of  claim 2 , wherein in an axial direction of the filter member, a ratio of an opening dimension of the receiving space to a dimension of the filter member is 1:(2.8-4). 
     
     
         7 . The filter assembly of  claim 1 , wherein the filter member has a length of 8 mm-10 mm in an axial direction of the filter member, and a diameter of 6.5 mm-7 mm in the radial direction of the filter member. 
     
     
         8 . The filter assembly of  claim 1 , wherein the functional member comprises a housing and a functional portion disposed in the housing, the functional portion is in a liquid state or a gaseous state, and the housing abuts against the filter member; and the housing is configured to be broken when the housing is subjected to a preset external force in the radial direction of the filter member. 
     
     
         9 . The filter assembly of  claim 8 , wherein when the housing is broken, the functional portion in the liquid state is adsorbed onto the filter member. 
     
     
         10 . The filter assembly of  claim 1 , wherein the functional member is spherical, ellipsoidal, or cylindrical. 
     
     
         11 . The filter assembly of  claim 10 , wherein when the functional member is spherical, the functional member has a diameter of 3 mm-4 mm; when the functional member is ellipsoidal or cylindrical, the functional member has an outer diameter of 3 mm-4 mm in the radial direction of the filter member, and a length of 4 mm-7 mm in an axial direction of the filter member. 
     
     
         12 . A cartridge comprising:
 a tube defining an accommodating space;   a closing member sealed to one end of the tube, wherein the accommodating space is shielded by the closing member;   a smoke generating member disposed in the accommodating space and adjacent to the closing member;   a cooling member disposed in the accommodating space and adjacent to the smoke generating member; and   a filter assembly comprising:
 a filter member defining a receiving space in a radial direction of the filter member; and 
 a functional member fixed in the receiving space, wherein the filter member is in contact with part of an outer surface of the functional member; wherein the filter assembly is disposed in the accommodating space and adjacent to the cooling member. 
   
     
     
         13 . The cartridge of  claim 12 , wherein the cooling member has a first end and a second end opposite to the first end, and defines a passage extending through the first end and the second end, the cartridge further comprises a first air-permeable sealing-portion and a second air-permeable sealing-portion, the first air-permeable sealing-portion is fixed to the first end, the passage is shielded by the first air-permeable sealing-portion, the second air-permeable sealing-portion is fixed to the second end, and the passage is shielded by the second air-permeable sealing-portion; and the first air-permeable sealing-portion is adjacent to the smoke generating member, and the second air-permeable sealing-portion is adjacent to the filter member. 
     
     
         14 . The cartridge of  claim 13 , wherein the first air-permeable sealing-portion defines at least one first hole, and/or the second air-permeable sealing-portion defines at least one second hole. 
     
     
         15 . The cartridge of  claim 12 , wherein the tube has an avoidance mark region corresponding to the receiving space. 
     
     
         16 . The cartridge of  claim 12 , wherein the tube further has two squeezing mark regions opposite to each other, and a connecting line of centers of the two squeezing mark regions is perpendicular to an extending direction of the receiving space. 
     
     
         17 . The cartridge of  claim 12 , wherein the tube has a length of 42 mm-46 mm, an outer diameter of 6.9 mm-7.1 mm, and an inner diameter of 6.4 mm-6.65 mm. 
     
     
         18 . The cartridge of  claim 12 , wherein the cooling member has a length of 16 mm-23 mm and an outer diameter of 6 mm-6.6 mm. 
     
     
         19 . The cartridge of  claim 12 , further comprising a decorative member, wherein the decorative member is sleeved on the tube and the closing member, the decorative member has a first end-surface and a second end-surface opposite to each other, the first end-surface is flush with a surface of the closing member away from the tube, and the second end-surface is flush with a surface of the filter member away from the closing member. 
     
     
         20 . The cartridge of  claim 19 , wherein the decorative member has a length of 42 mm-46 mm in an axial direction of the tube, and an outer diameter of 7.15 mm-7.3 mm in a radial direction of the tube.