Abstract:
An atomizer of an electronic cigarette includes an atomizing assembly, a smoke tube and a cigarette holder. The atomizing assembly includes: a heating module including a ceramic base and a heating wire winding around the ceramic base; and a snap base including an upper snap base and a lower snap base. The heating module is longitudinally provided between the upper snap base and the lower snap base. The upper snap base includes a first air channel in communication with a smoke channel and a liquid channel in communication with a liquid storage cavity. The lower snap base includes a second air channel in communication with the first air channel.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    The present application is a Continuation Application of PCT application No. PCT/CN2015/072438 filed on Feb. 6, 2015, the contents of which are hereby incorporated by reference. 
     
    
     TECHNICAL FIELD 
       [0002]    The present invention relates to the technical field of electronic cigarettes, and in particular to an atomizer of electronic cigarette. 
       BACKGROUND 
       [0003]    An electronic cigarette, also called an e-cigarette, is mainly used for smoking cessation and used as an alternative to cigarettes. The electronic cigarette is similar to a cigarette in appearance and smell, but generally contains no tar, suspended particulates and other harmful components as contained in the cigarette, thereby producing no pervasive or swirling second-hand smoke 
         [0004]    The electronic cigarette mainly consists of an atomizer and a power supply assembly. The atomizer generally comprises a liquid storing cavity, a heating wire, a heating wire support body (a liquid absorbing rope), positive and negative atomizer electrodes and the like. In a common electronic cigarette, the heating wire is winding around the heating wire support body to form a heating element. Wherein, two ends of the heating wire are electrically connected with the positive and negative atomizer electrodes via through holes in a cartridge to implement heating operation. 
         [0005]    However, the connecting manner of the heating element leads to instability in energization. Particularly, it is troublesome to the mount the heating wire and the positive and negative atomizer electrodes, and the atomizer of electronic cigarette is complicate in structure and inconvenient for fully-automatic production of the atomizer of electronic cigarette. 
       SUMMARY 
       [0006]    A technical problem to be solved by the present invention is to provide an atomizer of electronic cigarette, which is strong in stability, simple in structure and convenient for automatic production, with respect to the defects as described above in the prior art. 
         [0007]    A technical solution employed by the present invention to solve the technical problem thereof is to provide an atomizer of electronic cigarette, comprising an atomizing assembly, a smoke duct and a cigarette holder, the smoke duct comprising a liquid storing cavity for storing tobacco liquid and a smoke flue, and being in a fitted mounting respectively with the atomizing assembly and the cigarette holder, and the atomizing assembly comprising: 
         [0008]    a heating module, comprising a ceramic base and a heating wire winding around the ceramic base, the ceramic base being of a hollow micropore structure and communicated with the liquid storing cavity; and 
         [0009]    a cartridge, comprising an upper cartridge and a lower cartridge, the heating module being longitudinally disposed between the upper cartridge and the lower cartridge, the upper cartridge comprising a first air channel communicated with the smoke flue and a liquid channel communicated with the liquid storing cavity, and the lower cartridge comprising a second air channel communicated with the first air channel, wherein 
         [0010]    the heating wire is electrically connected with the upper cartridge and the lower cartridge respectively, and the hollow micropore structure of the ceramic base is communicated with the liquid storing cavity through the liquid channel. 
         [0011]    In an embodiment, the atomizing assembly further comprises an atomizing core casing in a fitted mounting with the upper and lower cartridges respectively, the atomizing core casing comprising an air cavity which is communicated with the first air channel and the second air channel respectively. 
         [0012]    In an embodiment, the upper cartridge is electrically connected with the atomizing core casing. 
         [0013]    In an embodiment, the upper cartridge also comprises a first accommodating groove for accommodating the heating module; the first accommodating groove is provided with a channel port of the liquid channel at a groove bottom; and the hollow micropore structure of the ceramic base is communicated with the liquid channel through the channel port. 
         [0014]    In an embodiment, the atomizing assembly also comprises an insulating ring fitted with the lower cartridge, and the insulating ring is disposed between the lower cartridge and the atomizing core casing. 
         [0015]    In an embodiment, the atomizing assembly also comprises an outer electrode mode electrically connected with the lower cartridge. 
         [0016]    In an embodiment, the atomizing assembly also comprises a seal gasket, which is disposed between the lower cartridge and the heating module. 
         [0017]    In an embodiment, the upper cartridge and the lower cartridge are provided with opposite electrodes. 
         [0018]    In an embodiment, the heating module also comprises connecting terminals disposed at two ends of the ceramic base; the heating wire is connected with the connecting terminals and is electrically connected with the upper cartridge and the lower cartridge through the connecting terminals respectively. 
         [0019]    In an embodiment, the connecting terminals comprise terminal through holes fitted with the hollow micropore structure of the ceramic base. 
         [0020]    The present invention has the advantageous effects that compared with the prior art, with the design of the upper and lower conductive cartridges according to the present invention, the heating module is longitudinally disposed between the upper cartridge and the lower cartridge and is electrically connected with the upper cartridge and the lower cartridge respectively, thereby simplifying the structure and increasing the stability for the atomizer of electronic cigarette; and the atomizer of electronic cigarette is simple in structure and convenient to mount, thereby facilitating fully-automatic production and increasing production efficiency. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0021]    The present invention will be further described below with reference to the attached drawings and the embodiments, in which: 
           [0022]      FIG. 1  is a structural schematic diagram of an atomizer of electronic cigarette of the present invention; 
           [0023]      FIG. 2  is a structural schematic diagram of an atomizing assembly of the present invention; 
           [0024]      FIG. 3  is a cross-section schematic diagram of the atomizer of electronic cigarette of the present invention; 
           [0025]      FIG. 4  is a schematic diagram of an exploded structure of the atomizer of electronic cigarette of the present invention; 
           [0026]      FIG. 5  is a structural schematic diagram of an upper cartridge of the present invention; 
           [0027]      FIG. 6  is a structural schematic diagram of a lower cartridge of the present invention; and 
           [0028]      FIG. 7  is a structural schematic diagram of a heating module of the present invention. 
       
    
    
     DETAILED DESCRIPTION 
       [0029]    Preferred embodiments of the present invention will now be described in details with reference to the attached drawings. 
         [0030]    As shown in  FIGS. 1 to 4 , the present invention provides a preferred embodiment of an atomizer of electronic cigarette to improve the stability of the atomizer of electronic cigarette and facilitate fully-automatic production, with  FIG. 1  being a structural schematic diagram of the atomizer of electronic cigarette,  FIG. 2  being a structural schematic diagram of an atomizing assembly,  FIG. 3  being a cross-section schematic diagram of the atomizer of electronic cigarette, and  FIG. 4  being a schematic diagram of an exploded structure of the atomizer of electronic cigarette. 
         [0031]    An atomizer of electronic cigarette comprises an atomizing assembly  20 , a smoke duct  11  and a cigarette holder  13 . The smoke duct  11  comprises a liquid storing cavity  21  for storing tobacco liquid and a smoke flue  121 , and is in a fitted mounting respectively with the atomizing assembly  20  and the cigarette holder  13 . The atomizing assembly  20  comprises a heating module  23  and a cartridge. The heating module  23  comprises a ceramic base  231  and a heating wire  232  winding around the ceramic base  231 . The ceramic base  231  is of a hollow micropore structure  2311  and communicated with the liquid storing cavity  111 . The cartridge comprises an upper cartridge  21  and a lower cartridge  22 . The heating module  23  is longitudinally disposed between the upper cartridge  21  and the lower cartridge  22 . The upper cartridge  21  comprises a first air channel  211  communicated with the smoke flue  121  and a liquid channel  212  communicated with the liquid storing cavity  111 . The lower cartridge  22  comprises a second air channel  221  communicated with the first air channel  211 . 
         [0032]    In an embodiment, the heating wire  232  is electrically connected with the upper cartridge  21  and the lower cartridge  22  respectively. The hollow micropore structure  2311  of the ceramic base  231  is communicated with the liquid storing cavity  111  through the liquid channel  212 . When smoking through the cigarette holder  13 , air in the ceramic base  231  is driven and the tobacco liquid is made to flow into the hollow micropore structure  2311  of the ceramic base  231 ; and under this state after the heating wire  232  is energized to heat, the tobacco liquid is heated and atomized into smoke, which penetrates through the ceramic base  231  and flows into the air channel to pass through the smoke flue  121  along with the air and flow out at the cigarette holder  13 . 
         [0033]    In an embodiment, the smoke duct  11  internally comprises a smoke flue duct  12  provided with the smoke flue  12 , which is preferably disposed in the center of the smoke duct  11 . An inner side wall of the smoke duct  11  and an outer side wall of the smoke flue duct  12  form the liquid storing cavity  111 . Specifically, the inner side wall of the smoke duct  11 , the outer side wall of the smoke flue duct  12 , an inner side face of the cigarette holder  13  and the atomizing assembly  20  form the liquid storing cavity  111 . 
         [0034]    In an embodiment, the cigarette holder  13  comprises a cigarette holder port communicated with the smoke flue  121 ; and a liquid storing cavity top cover  14  is disposed between the cigarette holder  13  and the smoke duct  11  for sealing the liquid storing cavity  111  to improve the tightness of the liquid storing cavity  111 . 
         [0035]    In the present embodiment, to facilitate the mounting of the upper cartridge  21  and the lower cartridge  22  and the heating and atomizing of the tobacco liquid into smoke by the heating module  23 . The atomizing assembly  20  further comprises an atomizing core casing  24  in a fitted mounting respectively with the upper cartridge  21  and the lower cartridge  22 . The atomizing core casing  24  comprises an air cavity  241 , which is formed by surrounding of the atomizing core casing  24 , the upper cartridge  21 , the lower cartridge  22  and the ceramic base  231 . In an embodiment, the heating wire  232  is disposed in the air cavity  241 . and the air cavity  241  is communicated with the first air channel  211  and the second air channel  221  respectively. An  0 -shaped seal ring  264  is disposed between the atomizing core casing  24  and the smoke duct  11 , and a side face of the atomizing core casing  24  is provided with a groove for holding the  0 -shaped seal ring  264 , which is used for preventing the tobacco liquid in the liquid storing cavity  111  from flowing out. 
         [0036]    To facilitate the connection between the atomizing core casing  24  and the smoke duct  11 , the atomizing core casing  24  is connected to the bottom of the smoke duct  11  through a threaded structure. Or, a liquid storing cavity base  15  is disposed between the atomizing core casing  24  and the smoke duct  11 . The atomizing core casing  24  is connected to the liquid storing cavity base  15  through the threaded structure, and connected with the bottom of the smoke duct  11  through the liquid storing cavity base  15 . Meanwhile, the liquid storing cavity base  15  prevents the tobacco liquid in the liquid storing cavity  111  from flowing out. 
         [0037]    The present embodiment comprises an air passage and a liquid passage, and the heating module  23  heats and atomizes the tobacco liquid in the liquid passage into smoke to enter the air channel. In an embodiment, the air passage comprises the cigarette holder  13  port, the smoke flue  121 , the first air channel  211 , the air cavity  241  and the second air channel  221  from top to bottom The liquid passage comprises the liquid storing cavity  111 , the liquid channel  212  and the hollow micropore structure  2311  from top to bottom. 
         [0038]    In an embodiment, the upper cartridge  21  and the lower cartridge  22  are provided with opposite electrodes. For example, the upper cartridge  21  is provided with a positive electrode. The lower cartridge  22  is provided with a negative electrode and is electrically connected with the heating wire  232 , the upper cartridge  21 . The heating wire  232  and the lower cartridge  22  form a current circuit, and the heating  232  heats after being energized. 
         [0039]    Further, with reference to  FIGS. 4 to 6 , the present invention provides preferred embodiments of the upper and lower cartridges, with  FIG. 5  being a structural schematic diagram of the upper cartridge, and  FIG. 6  being a structural schematic diagram of the lower cartridge. 
         [0040]    The upper cartridge  21  is disposed at the top of the atomizing core casing  24  and connected with the smoke flue duct  12 , and comprises a first accommodating groove, a first air channel  211  and a liquid channel  212 . 
         [0041]    Specifically, the upper cartridge  21  is electrically connected with the atomizing core casing  24 , and the atomizing core casing  24  is connected with an electrode of a power supply and supplies an electrode voltage to the upper cartridge  21 . The upper cartridge  21  comprises a first accommodating groove at the bottom for accommodating a heating module  23 . The first accommodating groove is provided with a channel port of the liquid channel  212  at a groove bottom. The hollow micropore structure  2311  of the ceramic base  231  is communicated with the liquid channel  212  through the channel port. The first accommodating groove is used for fixing the ceramic base  231 , and to prevent the tobacco liquid from flowing out. A sealant can be disposed between the first accommodating groove and the ceramic base  231 . A channel port at the other end of the liquid channel  212  of the upper cartridge  21  is disposed on a side face of the upper cartridge  21 , and is communicated with the liquid storing cavity  111 . A vent port at one end of the first air channel  211  of the upper cartridge  21  is disposed at the bottom face of the upper cartridge  21  and communicated with the air cavity  241 . A vent port at the other end of the same is disposed right in the center of the top of the upper cartridge  21  and is communicated with the smoke flue  121 . The upper cartridge  21  is provided with a limiting member  213  on a side face for fixing the upper cartridge  21  on the top of the atomizing core casing  24 . 
         [0042]    In an embodiment, a seal ring  27  is also disposed between the upper cartridge  21  and the smoke flue duct  12  to prevent the smoke from flowing out in the smoke circulation in the first air channel  211  and the smoke flue  121 . 
         [0043]    A first insulting ring  261  is disposed between the lower cartridge  22  and the atomizing core casing  24 . The lower cartridge  22  is fixed at the bottom of the atomizing core casing  24  through the first insulating ring  261 , and comprises a second accommodating groove and a second air channel  221 . 
         [0044]    Specifically, the lower cartridge  22  comprises a second accommodating groove at the top for accommodating the heating module  23 . The second accommodating groove is a sealing groove to prevent the tobacco liquid in the hollow micropore structure  2311  of the ceramic base  231  from flowing out. To further prevent the tobacco liquid from flowing out, a seal gasket  263  can be disposed between the second accommodating groove and the ceramic base  231 . The vent port at one end of the second air channel  221  of the lower cartridge  22  is disposed at the bottom face of the lower cartridge and is communicated with the outside. A vent port at the other end of the same is disposed at the top or side face of the lower cartridge  22  and is communicated with the air cavity  241 . The lower cartridge  22  is provided with a groove ring at the side face for holding the first insulating ring  261 . 
         [0045]    In an embodiment, the atomizing assembly  20  also comprises an outer electrode module  25  electrically connected with the lower cartridge  22 . The outer electrode module  25  is connected with the electrode of the power supply and supplies the electrode voltage to the lower cartridge  22 . The outer electrode module  25  comprises a third air channel  251  communicated with the second air channel  221 ; and the third air channel  251  is communicated with the outside. 
         [0046]    The outer electrode module  25  is connected with the atomizing core casing  24  through an atomizing core base  28 . The atomizing core base  28  is connected with the outer electrode module  25  and the atomizing core casing  24  respectively. The atomizing core casing  24  is provided with a threaded structure connected with an outer apparatus, on a side face. 
         [0047]    To prevent the outer electrode module  25  from contact short-circuiting, a second insulating ring  262  is disposed between the outer electrode module  25  and the atomizing core base  28 . Preferably, to facilitate production, the lower cartridge  22  and the outer electrode module  25  may be the same apparatus. To guarantee the tightness between the hollow micropore structure  2311  of the ceramic base  231  and the lower cartridge  22 , the seal gasket  263  can be used for sealing; and the lower cartridge  22  is provided with a groove for holding the seal gasket  263 . 
         [0048]    Further, with reference to  FIGS. 4 and 7 , preferred embodiments of the heating module are provided, with  FIG. 4  being a schematic diagram of an exploded structure of the atomizer of electronic cigarette, and  FIG. 7  being a structural schematic diagram of the heating module. 
         [0049]    The heating module  23  further comprises connecting terminals  233  disposed on two ends of the ceramic base  231 . The connecting terminals  233  comprise a first connecting terminal and a second connecting terminal, which are disposed at two sides; and the ceramic base  231  is abutted against the first accommodating groove of the upper cartridge  21  and the second accommodating groove of the lower cartridge  22  through the connecting terminals  233  respectively. The connecting terminals  233  are conductors; and the heating wire  232  is connected with the connecting terminals  233  and is electrically connected with the upper cartridge  21  and the lower cartridge  22  through the connecting terminals  233  respectively. 
         [0050]    In an embodiment, the connecting terminals  233  comprise terminal through holes fitted with the hollow micropore structure  2311  of the ceramic base  231 . The hollow micropore structure  2311  of the ceramic base  231  is communicated with the liquid channel  212  through the connecting terminals  233 . 
         [0051]    The description above shall not be construed as limiting the scope of the present invention but as merely providing preferred embodiments of the present invention. Any equivalent variations or modifications made based on the patent scope of the present invention application shall be encompassed by the present invention.