Atomizer, atomizing tube assembly for atomizer, and aerosol generating device

Abstract

An atomizer, an atomizing assembly, and an aerosol generating device are provided. The atomizer includes a housing, an atomizing assembly, an atomizing tube, and a snap-fit member on the atomizing tube. A part of the housing defines a liquid storage cavity. An end of the housing is provided with a suction nozzle having a suction nozzle opening for aerosol output. The atomizing assembly atomizes a liquid substrate to generate an aerosol. A part of an inner cavity of the atomizing tube defines a part of an air outlet channel used for guiding the aerosol to the suction nozzle opening. A fitting member is provided on the suction nozzle. Snap-fit connection is formed between the snap-fit member and the fitting member.

1 . An atomizer, comprising:
 a housing, wherein a liquid storage cavity for storing a liquid substrate is formed inside the housing; and one end of the housing is provided with a suction nozzle having a suction nozzle opening for aerosol output;   an atomizing assembly, configured to atomize the liquid substrate to generate an aerosol;   an atomizing tube, formed by stretching a metal substrate, wherein the atomizing tube defines at least a part of an air outlet channel, and the air outlet channel is used for guiding the aerosol to the suction nozzle opening; and   a closed-ring snap-fit member, wherein the snap-fit member surrounds the atomizing tube and is fixed on an outer surface of the atomizing tube adjacent to the suction nozzle, the snap-fit member comprises a clamping end extending in a radial direction of the atomizing tube, the suction nozzle is provided with a fitting member, and at least a part of the fitting member is configured to pass over the snap-fit member in an axial direction to form snap-fit connection with the clamping end.   
     
     
         2 . The atomizer according to  claim 1 , wherein a protrusion size of the clamping end in the radial direction of the atomizing tube is greater than 0.3 mm. 
     
     
         3 . The atomizer according to  claim 1 , wherein the fitting member has an undercut structure, and the undercut structure abuts against the clamping end of the snap-fit member. 
     
     
         4 . The atomizer according to  claim 1 , wherein the fitting member is provided with a notch. 
     
     
         5 . The atomizer according to  claim 1 , wherein a connecting sleeve is further provided between the suction nozzle and the housing; and the fitting member is arranged in the connecting sleeve. 
     
     
         6 . The atomizer according to  claim 5 , wherein a part of an inner wall of the connecting sleeve abuts on the fitting member; and another part of the inner wall of the connecting sleeve abuts on the atomizing tube. 
     
     
         7 . The atomizer according to  claim 6 , wherein a sealing element is arranged between the connecting sleeve and the atomizing tube, and the sealing element is arranged at one end of the connecting sleeve away from the suction nozzle. 
     
     
         8 . The atomizer according to  claim 1 , wherein the atomizing assembly comprises a liquid guide assembly and a heating element, the liquid guide assembly comprises a first liquid guide element and a second liquid guide element, the second liquid guide element is arranged around at least a part of the first liquid guide element, and the heating element is fixed on the first liquid guide element. 
     
     
         9 . The atomizer according to  claim 8 , wherein the hardness of the first liquid guide element is greater than the hardness of the second liquid guide element. 
     
     
         10 . The atomizer according to  claim 8 , wherein a liquid guide capability of the second liquid guide element is greater than a liquid guide capability of the first liquid guide element. 
     
     
         11 . The atomizer according to  claim 1 , wherein the snap-fit member is riveted on an outer surface of the atomizing tube. 
     
     
         12 . The atomizer according to  claim 1 , wherein the atomizing tube comprises a first section and a second section connected in sequence, an outer diameter of the second section is greater than an outer diameter of the first section, and the snap-fit member is fixed on an outer surface of the first section. 
     
     
         13 . The atomizer according to  claim 12 , wherein the first section has a uniform outer diameter in an axial extension direction. 
     
     
         14 . The atomizer according to  claim 12 , wherein the atomizing tube further comprises a third section that is away from the first section and connected to the second section, an outer diameter of the third section is greater than the outer diameter of the second section, and the atomizing assembly is accommodated in the third section. 
     
     
         15 . An aerosol generating device, comprising:
 the atomizer according to  claim 1 ; and   a power supply assembly that provides electric drive for the atomizer.   
     
     
         16 . An atomizing tube assembly for an atomizer, comprising:
 an atomizing tube, formed by stretching a metal substrate, wherein the atomizing tube defines at least a part of an air outlet channel, the atomizing tube comprises a first section, a second section, and a third section connected in sequence, and outer diameters of the first section, the second section, and the third section increase in sequence; and   a closed-ring snap-fit member, wherein the snap-fit member surrounds the first section of the atomizing tube and is fixed on an outer surface of the first section, the snap-fit member comprises a clamping end extending in a radial direction of the atomizing tube, and the clamping end is used for forming snap-fit connection with a suction nozzle in the atomizer.