Atomizer and electronic atomization device

Abstract

An atomizer and an electronic atomization device are provided. The atomizer includes: a liquid storage cavity configured to store a liquid substrate; a heating element constructed in a cylindrical shape extending along a longitudinal direction of the atomizer, to heat the liquid substrate to generate an aerosol; and a holder, at least partially located in the heating element and configured to at least partially provide support for the heating element from the inside of the heating element. In the atomizer, the support at least partially extends into the cylindrical heating element, to provide support for the heating element.

1 . An atomizer comprising:
 a liquid storage cavity, configured to store a liquid substrate;   a heating element, constructed in a cylindrical shape extending along a longitudinal direction of the atomizer, to heat the liquid substrate to generate an aerosol; and   a holder, at least partially surrounded by the heating element to be positioned inside the heating element, and configured to at least partially provide support for the heating element from the inside of the heating element.   
     
     
         2 . The atomizer according to  claim 1 , wherein the heating element is made by a material sheet wound around at least a part of the holder. 
     
     
         3 . The atomizer according to  claim 1 , further comprising:
 an inhalation port; and   an air inlet and an airflow channel located between the air inlet and the inhalation port,   wherein the air inlet, the inhalation port, and the airflow channel are arranged to define an airflow path from the air inlet to the inhalation port through the heating element, to transfer the aerosol to the inhalation port, and   wherein the airflow channel at least partially passes through the holder along the longitudinal direction of the atomizer.   
     
     
         4 . The atomizer according to  claim 1 , wherein:
 the holder comprises a first part surrounded by the heating element and a second part exposed outside the heating element;   the first part is configured to provide support for the heating element from the inside of the heating element; and   the second part abuts against the heating element to provide stop.   
     
     
         5 . The atomizer according to  claim 1 , further comprising:
 a liquid guide element, extending along an axial direction of the heating element and surrounding the heating element, and configured to conduct the liquid substrate in the liquid storage cavity to the heating element.   
     
     
         6 . The atomizer according to  claim 5 , further comprising:
 a tubular element, extending along the longitudinal direction of the atomizer, and at least partially defining the liquid storage cavity, wherein the tubular element is constructed to surround and retain the liquid guide element and abut against the holder to be stopped.   
     
     
         7 . The atomizer according to  claim 6 , wherein the liquid guide element is flexible, and is at least partially radially squeezed or compressed between the tubular element and the heating element. 
     
     
         8 . The atomizer according to  claim 6 , wherein:
 the tubular element is provided with a first notch, groove, or hole; and   the support is provided with a positioning clamping protrusion extending into the first notch, groove, or hole, to prevent the tubular element from rotating relative to the holder.   
     
     
         9 . The atomizer according to  claim 1 , wherein:
 the heating element comprises a first end and a second end facing away from each other along an axial direction;   the holder comprises a first support part and a second support part spaced apart along a longitudinal direction, and the first support part is in an annular shape and is arranged to provide support for the heating element from the inside close to a first end of the heating element; and   the second support part is in an annular shape and is arranged to provide support for the heating element from the inside close to a second end of the heating element.   
     
     
         10 . The atomizer according to  claim 1 , wherein the heating element defines a side opening extending along an axial direction, to enable the heating element to be non-closed along a circumferential direction. 
     
     
         11 . The atomizer according to  claim 10 , wherein the holder further comprises a third support part extending along the longitudinal direction, and the third support part is at least partially located in the side opening of the heating element, to provide support for the heating element. 
     
     
         12 . The atomizer according to  claim 1 , wherein:
 the heating element comprises a conductive lead for supplying power to the heating element; and   an inner surface or an outer surface of the holder is provided with a lead groove, and the conductive lead is at least partially accommodated and retained in the lead groove.   
     
     
         13 . The atomizer according to  claim 12 , further comprising:
 a lead fastener, at least partially shielding or covering the conductive lead accommodated in the lead groove, to prevent the conductive lead from leaving the lead groove.   
     
     
         14 . The atomizer according to  claim 13 , wherein the lead fastener is substantially constructed in an annular shape. 
     
     
         15 . The atomizer according to  claim 1 , wherein the liquid storage cavity is provided with an open end, and the atomizer further comprises:
 a flexible sealing base, configured to cover the open end to seal the liquid storage cavity, wherein the sealing base accommodates and retains at least a part of the holder.   
     
     
         16 . The atomizer according to  claim 15 , further comprising:
 an end support member, configured to support the sealing base,   wherein the sealing base comprises a first surface for sealing or covering the open end, and the sealing base is further provided with a through hole extending to the first surface; and   wherein the end support member is provided with an extension arm at least partially extending in the through hole, and an air channel is defined between the extension arm and the through hole, to provide a path for air to enter the liquid storage cavity.   
     
     
         17 . (canceled) 
     
     
         18 . The atomizer according to  claim 1 , wherein the heating element comprises a first end and a second end facing away from each other along an axial direction, and the heating element further comprises:
 a heating portion, configured to generate Joule heat;   a first tooth portion or wing portion, extending from the heating portion toward the first end and terminating at the first end; and   a second tooth portion or wing portion, extending from the heating portion toward the second end and terminating at the second end,   wherein the holder is arranged to provide support for the first tooth portion or wing portion and/or the second tooth portion or wing portion and avoid the heating portion.   
     
     
         19 . The atomizer according to  claim 3 , wherein the heating element comprises a first end and a second end facing away from each other along an axial direction, and the heating element further comprises:
 a first joint portion combined on the holder, and located at the first end;   a second joint portion combined on the holder, and located at the second end; and   a heating portion, located between the first joint portion and the second joint portion along an axial direction, and configured to generate Joule heat, wherein the heating portion avoids the holder, and is exposed in the airflow channel.   
     
     
         20 . An atomizer comprising:
 a tubular element configured to extend along a longitudinal direction of the atomizer;   a liquid storage cavity, at least partially defined by the tubular element and configured to store a liquid substrate, wherein the liquid storage cavity is provided with an open end;   a heating element, located in the tubular element and configured to heat the liquid substrate to generate an aerosol;   a flexible sealing base configured to cover the open end to seal the liquid storage cavity, wherein the sealing base accommodates and surrounds at least a part of the tubular element; and   an end support member configured to support the sealing base,   wherein the sealing base comprises a first surface for sealing or covering the open end, and the sealing base is further provided with a through hole extending to the first surface; and   wherein the end support member is provided with an extension arm at least partially extending in the through hole, and an air channel is defined between the extension arm and the through hole, to provide a path for air to enter the liquid storage cavity.   
     
     
         21 . An electronic atomization device comprising:
 an atomizer configured to atomize a liquid substrate to generate an aerosol; and   a power supply device configured to supply power to the atomizer,   wherein the atomizer comprises the atomizer according to  claim 1 .