Patent Publication Number: US-11019846-B2

Title: Electronic cigarette atomization core and electronic cigarette atomizer

Description:
FIELD OF THE PRESENT APPLICATION 
     The present application relates to a field of electronic cigarette devices, and more particularly relates to an electronic cigarette atomization core and an electronic cigarette atomizer. 
     BACKGROUND OF THE PRESENT APPLICATION 
     As people pay more attention to their own health and importance of social external environment, especially indoor environmental pollution, smoking cessation is imperative. In order to solve an excessive dependence on traditional cigarettes, an electronic cigarette atomizer is produced. 
     In electronic cigarette atomizer of the prior art, the smoke formed by e-liquid atomized by hot air heated by a heating wire flows into a user&#39;s mouth, the smoke taste is irritating and hot, and as the airflow may pass through the heating wire, so there may be a risk of an inhalation of metal ions, which can affect the health of the user. 
     Therefore, it is an urgent need to solve the problem of the atomization core and the atomizer by designing an electronic cigarette atomization core and an electronic cigarette atomizer to ensure that atomization efficiency is improved, atomization of the smoke is purely soft and the inhalation of metal ions that affects the health of the user can be avoided. 
     SUMMARY OF THE PRESENT APPLICATION 
     By providing an electronic cigarette atomization core and an electronic cigarette atomizer, the present application solves the problem that the atomization core and the atomizer in the prior art cannot ensure an improvement of the atomization efficiency while a smoke mouth feel is moderated to improve an user experience, and an inhalation of metal ions may be presented to affect the health of the user, and realizes technical effects that smoke atomized by the atomization core is pure and it can prevent the inhalation of the metal ions affecting the health of the user. 
     On one aspect, the present application provides an electronic cigarette atomization core for atomizing e-liquid to form smoke for a user to inhale, comprising an atomizing core body, and the atomizing core body is provided with an e-liquid storage chamber for receiving e-liquid and a heating chamber for accommodating a heating element, the heating element is abutted against an outer wall of one end of the e-liquid storage chamber for transferring heat to the e-liquid in the e-liquid storage chamber to atomize the e-liquid when the heating element generates heat, the e-liquid storage chamber and the heating chamber are disconnected to each other; and 
     The atomizing core body further comprises a heat insulating bracket sleeved between the e-liquid storage chamber and the heating chamber for thermally insulating the e-liquid storage chamber when the heating element generates heat. 
     Typically, an e-liquid reservoir is axially defined in the atomizing core body, and the e-liquid storage chamber is formed in the e-liquid reservoir, the e-liquid reservoir comprises an open end, and the heating element in a spiral shape and abuts against an outer end wall of the e-liquid reservoir opposite to the open end; and 
     An end of the heat insulating bracket opposite to the heating element is an open end and is connected with a first fixing member, and one end of the first fixing member is abutted against the e-liquid reservoir and an end wall of an open end of the heat insulating bracket, respectively; the other end of the first fixing member is clamped between a side wall of e-liquid reservoir and a side wall of the heat insulating bracket, so that the e-liquid reservoir is spaced apart with the heat insulating bracket to form a first space for thermal insulation, the heating chamber is defined inside the first space. 
     Typically, the first fixing member is sleeved by a second fixing member, and the second fixing member is respectively abutted against an end wall of the open end of the e-liquid reservoir, an outer side wall of an open end of the heat insulating bracket, and the first fixing member for fixing the first fixing member between the e-liquid reservoir and the heat insulating bracket and for fixing the e-liquid reservoir inside the heat insulating bracket. 
     Typically, an inner wall of the heat insulating bracket is inwardly and radially shrunk to form a limiting step, and the limiting step abuts against a first sleeve ring; and 
     A support barrel is further defined in an end of the heat insulating bracket opposite to the first fixing member, the support barrel comprises an open end and an annular end wall of the open end is abutted against a first sleeve ring, an outer end wall of the other end of the support barrel abuts against the heating element to fix the heating element between the support barrel and the e-liquid reservoir, the heating chamber is formed between the support barrel and the e-liquid reservoir. 
     Typically, the heating element comprises a first connecting pin and a second connecting pin for an electrical connection, a first through hole, a first connecting hole and a second connecting hole are defined at an end wall of the support barrel abutted against the heating element, and the first connecting hole and the second connecting hole are configured to pass through the first connecting pin and the second connecting pin, respectively. 
     Typically, an e-liquid reservoir is axially defined in the atomizing core body, and the e-liquid reservoir comprises an open end, the e-liquid storage chamber is formed in the e-liquid reservoir and adjacent to the open end of the e-liquid reservoir, and the heating chamber is formed in the e-liquid reservoir and is positioned opposite to the open end of the e-liquid reservoir, a partition plate for isolating the e-liquid storage chamber and the heating chamber is defined in the e-liquid reservoir, and the heating element is in a spiral shape and is abutted against an inner end wall of the e-liquid reservoir opposite to the open end. 
     Typically, an inner wall of the heat insulating bracket is inwardly and radially shrunk to form a limiting step, and the limiting step abuts against a first sleeve ring; and 
     A support barrel is further defined in the heat insulating bracket, the support barrel comprises an open end and an annular end wall of the open end is abutted against a first sleeve ring, an end wall of the other end of the support barrel partially extends toward the e-liquid reservoir to form an annular projection, and the annular projection is abutted against an end wall of the e-liquid reservoir opposite to the open end. 
     Typically, the heating element comprises a first connecting pin and a second connecting pin for an electrical connection, a third connecting hole and a fourth connecting hole are provided on an end wall of the e-liquid reservoir opposite to the open end, the third connecting hole and the fourth connecting hole are configured to pass through the first connecting foot and the second connecting foot of the heating element, respectively; a fifth connecting hole and a sixth connecting hole are defined at an end wall of the support barrel adjacent to the e-liquid reservoir, the fifth connecting hole and the sixth connecting hole are configured to pass through the first connecting pin and the second connecting pin of the heating element. 
     Typically, one end of the heat insulating bracket opposite to the first fixing member is radially shrunk and axially extended opposite to the first fixing member to form a first external electrode, the first external electrode is provided with a first internal electrode, a first insulating ring is sleeved between the first external electrode and the first internal electrode; and 
     A first connecting pin of the heating element is electrically connected to the first external electrode through the first connecting hole, and a second connecting pin of the heating element is electrically connected to the first internal electrode through the second connecting hole. 
     On a further aspect, the present application further provides an electronic cigarette atomizer, comprising the electronic cigarette atomization core, the atomizer comprises an outer casing sleeved outside the atomization core, a nozzle assembly defined at one end of the outer casing, the outer casing is spaced apart with the heat insulating bracket of the atomization core to form an airflow passage for air to flow, smoke generated by atomization of the e-liquid in the e-liquid storage chamber enters the airflow passage, mixes with air and flows to the nozzle assembly. 
     Typically, one end of the nozzle assembly is provided with a smoke outlet and internally provided with a first chamber communicated with the smoke outlet, the other end of the nozzle assembly extends axially opposite to the smoke outlet to an internal portion of the outer casing to form an embedding portion, a side wall of the embedding portion is provided with a vent, and the smoke outlet and the first chamber are communicated with the airflow passage through the vent. 
     Typically, an end of the outer casing opposite to the nozzle assembly is further provided with a connecting portion for connecting to the battery assembly, the connecting portion comprises a first connecting portion abutting against an end wall of the outer casing, and a second connecting portion inserted into an inner portion of the outer casing; 
     A center of the first connecting portion is axially extended in a direction opposite to the nozzle assembly to form a second external electrode, and a center of the connecting portion is provided with an accommodating space sequentially penetrating the first connecting portion and the second connecting portion; and 
     One end of the accommodating space near the second external electrode is provided with a second internal electrode, and a second insulating ring is sleeved between the second external electrode and the second internal electrode. 
     Typically, a side wall of the first connecting portion is provided with a plurality of first air intake passages, and an internal portion of the second connecting portion is provided with a plurality of second air intake passages along an axial direction of the outer casing, each of the second air intake passages is in communication with each of the first air intake passages, and each of the first air intake passages S 2 , each of the second air intake passages, the airflow passage, the first chamber and the smoke outlet are sequentially communicated. 
     Typically, an outer side wall of the second connecting portion is provided with an annular groove, and a second sleeve ring is elastically clamped in the annular groove, the second sleeve ring is elastically and respectively abutted against the annular groove and an inner side wall of the outer casing to achieve a fixed connection of the connecting portion and the outer casing. 
     Typically, the first external electrode of the atomization core is inserted into one end of the accommodating space toward the nozzle assembly, the first external electrode is electrically connected to the second external electrode, and the first internal electrode of the atomization core is electrically connected to the second internal electrode. 
     One or more technical solutions provided in embodiments of the present application have at least following technical effects or advantages: by making the heating chamber provided with the heating element and the e-liquid storage chamber accommodating the e-liquid be disconnected to each other, the smoke obtained by the atomization is purely soft to improve the user experience and it can prevent the inhalation of metal ions from affecting the health of the user. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without any creative work. 
         FIG. 1  is a schematic structural view of an electronic cigarette atomization core according to a first embodiment of the present application; 
         FIG. 2  is a schematic structural view of an electronic cigarette atomization core according to a second embodiment of the present application; 
         FIG. 3  is a schematic structural diagram of an electronic cigarette atomizer according to a third embodiment of the present application; 
         FIG. 4  is an exploded view of an electronic cigarette atomizer according to a third embodiment of the present application; 
         FIG. 5  is a schematic diagram of airflow of an electronic cigarette atomizer according to a third embodiment of the present application. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The embodiment of the present application provides an electronic cigarette atomization core and an atomizer. The specific idea is as follows: by making the heating chamber provided with the heating element and the e-liquid storage chamber accommodating the e-liquid be disconnected to each other, smoke obtained by the atomization is purely soft to improve the user experience and it can prevent the inhalation of metal ions from affecting the health of the user; by setting the heating element in a spiral shape to increase a contact surface of the heating element and the e-liquid storage chamber, so as to effectively improve atomization efficiency. 
     For well understanding of the above technical solutions, the above technical solutions will be described in detail in conjunction with the drawings and typical embodiments. It should be understood that embodiments and specific features of the embodiments of the present application are detailed descriptions to the technical solutions of the present application, rather than limitations of the technical solutions of the present application. In case of no conflicts, the embodiments and specific features of the embodiments of the present application may be combined with each other. 
     First Embodiment 
     Referring to  FIG. 1 , an embodiment of the present application provides an electronic cigarette atomization core for atomizing e-liquid to form smoke for a user to inhale, comprising an atomizing core body  1 , and the atomizing core body  1  is provided with an e-liquid storage chamber  11  for receiving e-liquid and a heating chamber  13  for accommodating a heating element  12 , in a specific implementation process, the e-liquid storage chamber  11  may also be provided with e-liquid storage cotton, the heating element  12  is abutted against an outer wall of one end of the e-liquid storage chamber  11  for transferring heat to the e-liquid in the e-liquid storage chamber  11  to atomize the e-liquid when the heating element  12  generates heat, the e-liquid storage chamber  11  and the heating chamber  13  are disconnected to each other, so that smoke flowing into the mouth of the user does not pass through the heating element  12 , thereby avoiding the risk of inhaling metal ions to affect the health of the user; the atomizing core body  1  further comprises a heat insulating bracket  14  sleeved between the e-liquid storage chamber  11  and the heating chamber  13  for thermally insulating the e-liquid storage chamber  11  when the heating element  12  generates heat. In the present embodiment, the heat insulating bracket  14  is made of a conductive material such as metal, and has a certain strength and can also be configured for electrical conduction. 
     In the present embodiment, an e-liquid reservoir  15  is axially defined in the atomizing core body  1 , and the e-liquid storage chamber  11  is formed in the e-liquid reservoir  15 , the e-liquid reservoir  15  comprises an open end, and the heating element  12  is in a spiral shape and is abutted against an outer end wall of the e-liquid reservoir  15  opposite to the open end, and the spiral shape design increases a contact area of the heating element  12  and the e-liquid storage chamber  11 , thereby effectively improving atomization efficiency of the e-liquid; The e-liquid reservoir  15  is typically made of a glass material, at the same time of heat conduction, heat of the heating element  12  can be radiated to the e-liquid in the e-liquid storage chamber  11  by heat radiation to improve the atomization efficiency. 
     In order to space the e-liquid reservoir  15  and the heat insulating bracket  14 , an end of the heat insulating bracket  14  opposite to the heating element  12  is an open end and is connected with a first fixing member  141 , and one end of the first fixing member  141  is abutted against the e-liquid reservoir  15  and an end wall of the open end of the heat insulating bracket  14 , respectively; the other end of the first fixing member  141  is clamped between a side wall of the e-liquid reservoir  15  and a side wall of the heat insulating bracket  14 , so that the heating chamber  13  is spaced apart with the heat insulating bracket  14  to form a first space  16  for thermal insulation, the heating chamber  13  is defined inside the first space  16 . Air in the first space  16  is heated by the heating element  12 , so that a side wall of the e-liquid storage chamber  11  can also transfer heat of the heating element  12  to atomize the e-liquid, and the thermal insulation can further improve the atomization efficiency. 
     In order to fix the e-liquid reservoir  15  to the inside of the heat insulating bracket  14 , the first fixing member  141  is sleeved by a second fixing member  142 , and the second fixing member  142  is respectively abutted against an end wall of the open end of the e-liquid reservoir  15 , an outer side wall of the open end of the heat insulating bracket  14 , and the first fixing member  141  for fixing the first fixing member  141  between the e-liquid reservoir  15  and the heat insulating bracket  14  and for fixing the e-liquid reservoir  15  to an internal part of the heat insulating bracket  14 . The first fixing member  141  is made of an elastically thermal insulation material, and the second fixing member  142  is made of a thermal insulation material to further have a sealing and thermally insulating effect. 
     Specifically, an inner wall of the heat insulating bracket  14  is inwardly and radially shrunk to form a limiting step  143 , and the limiting step  143  abuts against a first sleeve ring  144 ; a support barrel  17  is further defined in an end of the heat insulating bracket  14  opposite to the first fixing member  141 , the support barrel  17  comprises an open end and an annular end wall of the open end is abutted against a first sleeve ring  144 , an outer end wall of the other end of the support barrel  17  abuts against the heating element  12  to fix the heating element  12  between the support barrel  17  and the e-liquid reservoir  15 , the heating chamber  13  is formed between the support barrel  17  and the e-liquid reservoir  15 . In this embodiment, the first sleeve ring  144  can be made of an elastically thermal insulation material, so that the support barrel  17  can fasten the heating element  12  to an outer wall of the bottom of the e-liquid reservoir  15 . The support barrel  17  is made of a thermal insulation material to prevent the heat of the heating element  12  from dissipating along the support barrel  17  to the outside of the heat insulating bracket  14 . 
     As shown in  FIG. 1 , the heating element  12  comprises a first connecting pin  121  and a second connecting pin  122  for an electrical connection, a first through hole  173 , a first connecting hole  171  and a second connecting hole  172  are defined at an end wall of the support barrel  17  abutted against the heating element  12 , and the first connecting hole  171  and the second connecting hole  172  are configured to pass through the first connecting pin  121  and the second connecting pin  122 , respectively. One end of the heat insulating bracket  14  opposite to the first fixing member  141  is reduced in diameter and axially extends opposite to the first fixing member  141  to form a first external electrode  145 , the first external electrode  145  is a hollow structure, the first external electrode  145  is provided with a first internal electrode  146 , a first insulating ring  147  is sleeved between the first external electrode  145  and the first internal electrode  146 ; a first connecting pin  121  of the heating element  12  is electrically connected to the first external electrode  145  through the first connecting hole  171 , and a second connecting pin of the heating element  12  is electrically connected to the first internal electrode  146  through the second connecting hole  172 . The arrangement of the first connecting hole  171  and the second connecting hole  172  prevents the first connecting pin  121  and the second connecting pin  122  from being contacted with each other and resulted in a short circuit during a transportation or vibration of the atomization core. 
     Second Embodiment 
     The atomization core in the second embodiment of the present application is different from the atomization core in the first embodiment in a position of the heating element  12 , a structure of the e-liquid reservoir  15 , and a structure of the support barrel  17 . 
     As shown in  FIG. 2 , in the present embodiment, an e-liquid reservoir  15  is axially defined in the atomizing core body  1 , and the e-liquid reservoir  15  comprises an open end, the e-liquid storage chamber  11  is formed in the e-liquid reservoir  15  and adjacent to the open end of the e-liquid reservoir  15 , and the heating chamber  13  is formed in the e-liquid reservoir  15  and is positioned opposite to the open end of the e-liquid reservoir  15 , a partition plate  151  for isolating the e-liquid storage chamber  11  and the heating chamber  13  is defined in the e-liquid reservoir  15 , and the heating element  12  is in a spiral shape and is abutted against an inner end wall of the e-liquid reservoir  15  opposite to the open end. The e-liquid reservoir  15  and the partition plate  151  are typically made of a glass material. Heat of the heat generating element  12  can also be radiated to the e-liquid in the e-liquid storage chamber  11  by heat radiation to improve the atomization efficiency. 
     Structures of the first fixing member  141  and the second fixing member  142  in this embodiment is the same as those of the first embodiment, and will not be described in detail herein. 
     Specifically, an inner wall of the heat insulating bracket  14  is inwardly and radially shrunk to form a limiting step  143 , and the limiting step  143  abuts against a first sleeve ring  144 ; a support barrel  17  is further defined in the heat insulating bracket  14 , the support barrel  17  comprises an open end and an annular end wall of the open end is abutted against a first sleeve ring  144 , an end wall of the other end of the support barrel  17  partially extends toward the e-liquid reservoir  15  to form an annular projection  174 , and the annular projection  174  is abutted against an end wall of the e-liquid reservoir  15  opposite to the open end. The support barrel  17  is made of a thermal insulation material to prevent the heat of the heating element  12  from dissipating along the support barrel  17  to the outside of the heat insulating bracket  14 . The arrangement of the annular projection  174  reduces a contact area between the support barrel  17  and the e-liquid reservoir  15 , and further functions as a thermal insulator. 
     Specifically, the heating element  12  comprises a first connecting pin  121  and a second connecting pin  122  for an electrical connection, a third connecting hole  152  and a fourth connecting hole  153  are provided on an end wall of the e-liquid reservoir  15  opposite to the open end, the third connecting hole  152  and the fourth connecting hole  153  are configured to pass through the first connecting foot  121  and the second connecting foot  122  of the heating element  12 , respectively; a fifth connecting hole  175  and a sixth connecting hole  176  are defined at an end wall of the support barrel  17  near the e-liquid reservoir  15 , the fifth connecting hole  175  and the sixth connecting hole  176  are configured to pass through the first connecting pin  121  and the second connecting pin  122  of the heating element  12 . The arrangement of the third connecting hole  152 , the fourth connecting hole  153 , the fifth connecting hole  175  and the sixth connecting hole  176  prevents the first connecting pin  121  and the second connecting pin  122  from being contacted with each other and resulted in a short circuit during a transportation or vibration of the atomization core. 
     Arrangements of the first external electrode  145 , the first internal electrode  146  and the first insulating ring  147  in this embodiment is the same as those in the first embodiment, and will not be described in detail herein. 
     Third Embodiment 
     The third embodiment of the present application provides an atomizer comprising the atomization core described in the first embodiment. 
     As shown in  FIG. 3 , the atomizer comprises an outer casing  2  sleeved outside the atomization core, a nozzle assembly  3  defined at one end of the outer casing  2 , in order to reduce irritation and hot burning degree of highly atomized e-liquid, the outer casing  2  is spaced apart with the heat insulating bracket  14  of the atomization core to form an airflow passage S 1  for air to flow, smoke generated by atomization of the e-liquid in the e-liquid storage chamber  11  enters the airflow passage S 1 , mixes with air and flows to the nozzle assembly  3 , and the arrangement of the airflow passage S 1  further acts as a thermal insulator. 
     Specifically, one end of the nozzle assembly  3  is provided with a smoke outlet  31  and internally provided with a first chamber  32  communicated with the smoke outlet  31 , the other end of the nozzle assembly  3  extends axially opposite to the smoke outlet  31  to an internal portion of the outer casing  2  to form an embedding portion  33 , a side wall of the embedding portion  33  is provided with a vent  331 , and the smoke outlet  31  and the first chamber  32  are communicated with the airflow passage S 1  through the vent  331 . 
     As shown in  FIG. 3  and  FIG. 4 , an end of the outer casing  2  opposite to the nozzle assembly  3  is further provided with a connecting portion  4  for connecting to the battery assembly, the connecting portion  4  comprises a first connecting portion  41  abutting against an end wall of the outer casing  2 , and a second connecting portion  42  inserted into an inner portion of the outer casing  2 ; a center of the first connecting portion  41  is axially extended in a direction opposite to the nozzle assembly  3  to form a second external electrode  411 , and a center of the connecting portion  4  is provided with an accommodating space  43  sequentially penetrating the first connecting portion  41  and the second connecting portion  42 ; one end of the accommodating space  43  near the second external electrode  411  is provided with a hollow second internal electrode  431 , and a second insulating ring  432  is sleeved between the second external electrode  411  and the second internal electrode  431 . 
     As shown in  FIG. 3  and  FIG. 5 , in the present embodiment, in order to allow airflow to enter into the airflow passage S 1 , a side wall of the first connecting portion  41  is provided with a plurality of first air intake passages S 2 , and an internal portion of the second connecting portion  42  is provided with a plurality of second air intake passages S 3  along an axial direction of the outer casing  2 . In the embodiment, a side wall of the first connecting portion  41  is uniformly provided with four first air intake passages S 2 , an internal portion of the second connecting portion  42  is correspondingly provided with four second air intake passages S 3  along an axial direction of the outer casing  2 , each of the second air intake passages S 3  is in communication with each of the first air intake passages S 2 , and each of the first air intake passages S 2 , each of the second air intake passages S 3 , the airflow passage S 1 , the first chamber  32  and the smoke outlet  31  are sequentially connected. When an airflow sequentially enters the first intake passages S 2 , the second intake passages S 3 , and the airflow passage S 1 , and reaches a upper portion of the e-liquid storage chamber  11 , the airflow is mixed with smoke formed by atomization of the e-liquid, and the mixed airflow flows to the first chamber  32  through the vent  331 , and finally enters the mouth of an user from the smoke outlet  31 , the mixed airflow ensures the atomization efficiency, reduces the irritation and hot burning degree of mouth feel of highly atomized e-liquid, improves user experience. In addition, smoke flowing into the mouth of the user does not pass through the heating wire, effectively avoiding an inhalation of metal ions to affect health of the user. 
     As shown in  FIG. 1  and  FIG. 3 , an outer side wall of the second connecting portion  42  is provided with an annular groove  421 , and a second sleeve ring  422  is elastically clamped in the groove  422 , the second sleeve ring  422  is elastically and respectively abutted against the groove  421  and an inner side wall of the outer casing  2  to achieve a fixed connection of the connecting portion  4  and the outer casing  2 , and the second sleeve ring  422  is made of an elastically thermal insulation material to facilitate installation and disassembly of the connecting portion  4 . 
     In a specific implementation, the first external electrode  145  of the atomization core is inserted into one end of the accommodating space  43  toward the nozzle assembly  3 , the first external electrode  145  is electrically connected to the second external electrode  411 , and the first internal electrode  146  of the atomization core is electrically connected to the second internal electrode  431 . The second internal electrode  431  and the first internal electrode  146  are both hollow and are communicated with each other, and are communicated with the first space  16  through the first through hole  143 . Air in the first space  16  is heated by the heating element  12 , and heat can be further transmitted to the e-liquid storage chamber  11  through a side wall of the e-liquid reservoir  15  to improve the atomization efficiency of the e-liquid. 
     Specifically, the first connecting pin  121  of the heating element  12  of the atomization core is electrically connected to the first external electrode  145  through the first connecting hole  171 , and then electrically connected to the second external electrode  411  through the first external electrode  145 . The second connecting pin  122  of the heating element  12  is electrically connected to the first internal electrode  146  through the second connecting hole  172 , and then electrically connected to the second internal electrode  431  through the first internal electrode  146 , thereby avoiding a short circuit occurs when the two connecting wires are brought together by a transportation process or vibration. 
     Above all, the electronic cigarette atomization core and atomizer of the present solution have following technical effects: 
     1) By making the heating chamber provided with the heating element and the e-liquid storage chamber accommodating the e-liquid be disconnected to each other, smoke obtained by the atomization is purely soft to improve the user experience and it can prevent the inhalation of metal ions from affecting the health of the user; 
     2) Cold air is mixed with atomized e-liquid to flow into the mouth of a user, and the taste of smoke is pure while avoiding excessive heat, thereby improving the user experience; 
     3) By setting the heating element in a spiral shape to increase a contact surface of the heating element and the e-liquid storage chamber, so as to effectively improve atomization efficiency; 
     4) The e-liquid reservoir is made of a glass material, at the same time of heat conduction, the heat of the heating element can be radiated to the e-liquid in the e-liquid storage chamber by heat radiation, thereby further improving the atomization efficiency and saving energy. 
     While the present application has been described typical embodiments of the present application, those skilled in the art can make additional changes and modifications to the embodiments as long as they know the creative conception of the present application. Therefore, the appended claims are intended to be interpreted as comprising the typical embodiments and other additions and modifications within a range of the present application. 
     It will be apparent that those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, it is intended that the present application comprises such modifications and variations as the modifications and variations are within the scope of the appended claims and technical solutions which is equaled or similar to the appended claims.