Patent Document

FIELD OF THE INVENTION 
       [0001]    The present application relates to a technical field of an electronic cigarette, and more particularly relates to an electronic cigarette and an atomization control method thereof. 
       BACKGROUND OF THE INVENTION 
       [0002]    In the prior art, electronic cigarettes generally comprise two parts which are an atomization assembly for atomizing e-liquid and a battery assembly for supplying power to the atomization assembly. Among them, an existing electronic cigarette integrated an airflow sensor with a control circuit to control the electronic cigarette, when the user smoking electronic cigarette, the electronic cigarette air pressure will change, resulting in deformation of a thin film capacitor of the airflow sensor. When the amount of the deformation of the thin film capacitor reaches a threshold, a trigger signal is sent to the microprocessor in the control circuit to ensure the microprocessor to control the battery assembly to supply power to the atomization assembly to atomize e-liquid. 
         [0003]    However, such an electronic cigarette in a packaging or transport process, is prone to cause a change of the air pressure in the electronic cigarette, which causes the electronic cigarette to work automatically. The electronic cigarette automatically working for a long time is likely to cause a risk of fire and explosion, while the electronic cigarette automatically working for a long time leads to a problem that deterioration and taste of the atomized e-liquid are changed after the atomized e-liquid is repeatedly oxidized by the air. 
         [0004]    Another existing electronic cigarette is to replace the airflow sensor through a mechanical key switch to control the electronic cigarette to achieve an atomization of the liquid. Because a frequency of pressing the key switch is high when smoking the electronic cigarette, the key switch is likely to fail during a long pressing process, then some electronic cigarettes are controlled by using touch switches instead of the above key switches. However, a touch switch is usually provided at a certain position on an outer peripheral surface of the battery assembly, and as long as the touch switch is touched, the electronic cigarette is operated, it is easy to touch the touch switch when packaging or holding the electronic cigarette, thereby leading to an automatic work situation of the electronic cigarette. 
       SUMMARY OF THE INVENTION 
       [0005]    Technical problems to be solved in the present invention is to provide an electronic cigarette and an atomization control method thereof aiming at defects in the prior art. 
         [0006]    A technical proposal for solving the technical problem of the invention is shown as following. 
         [0007]    Provide an electronic cigarette comprising an atomization assembly and a battery assembly, a heating wire assembly is defined in the atomization assembly, the battery assembly is provided with a power source for supplying electrical power to the heating wire assembly so that the atomization assembly atomizes e-liquid to form smoke; the electronic cigarette further comprises a control module electrically connected to the power source and the heating wire assembly, respectively, and an airflow sensor configured for transmitting a smoking signal to the control module when the airflow sensor detects that a user is smoking; a first conductor is provided on an outer peripheral surface of the battery assembly; a suction nozzle for a user to smoke is provided on an end of the atomization assembly opposite to the battery assembly; and a second conductor is provided on an outer peripheral surface of the suction nozzle; one conductive sleeve of the first conductor and the second conductor is electrically connected to the control module and the other conductor is electrically connected to the power source; 
         [0008]    The first conductor and the second conductor are contacted and then conducted by the user&#39;s skin while the user is smoking, the control module is configured for controlling the power source to supply the electrical power to the heating wire assembly to atomize the e-liquid when the control module detects the smoking signal and a conduction signal generated by that the first conductor and the second conductor are conducted. 
         [0009]    In the electronic cigarette according to the present invention, the atomization assembly comprises an e-liquid cup assembly, the e-liquid cup assembly comprises an e-liquid reservoir and a vent pipe, the vent pipe is inserted in the e-liquid reservoir and configured for discharging smoke atomized by the atomization assembly from the suction nozzle, one end of the e-liquid cup assembly is provided with the suction nozzle made of a conductive material, an outer surface of the suction nozzle is configured as the second conductor, the other end of the e-liquid cup assembly is provided with an atomization core for atomizing the e-liquid, at least one end of the atomization core is inserted into the e-liquid cup assembly. 
         [0010]    One end of the atomization core is connected to the vent pipe, the other end of the atomization core is connected with the battery assembly, the control module is defined in the battery assembly, two ends of the vent pipe are electrically connected to the suction nozzle and the atomization core, respectively, the suction nozzle is electrically connected to the control module via the vent pipe and the atomization core. 
         [0011]    In the electronic cigarette according to the present invention, a smoke passage and an elastic conductive arm are defined in the atomization core, the smoke passage is communicated with the vent pipe, the elastic conductive arm extends into the smoke passage are defined in the atomization core, the elastic conductive arm is electrically connected to the control module, the vent pipe is inserted into the smoke passage, the elastic conductive arm is abutted against a side wall of the vent pipe. 
         [0012]    In the electronic cigarette according to the present invention, the atomization core further comprises a hollow atomization seat; the smoke passage is defined in the atomization seat, a side wall of the atomization seat is provided with an e-liquid entering channel communicated with an e-liquid storage cavity in the e-liquid cup assembly, the heating wire assembly is defined on the smoke passage; an end of the atomization seat is connected with an atomization electrode assembly configured for being electrically connected to the battery assembly. 
         [0013]    In the electronic cigarette according to the present invention, the battery assembly comprises the first conductive sleeve configured as the first conductor, the first conductive sleeve receives a battery configured as the power source, one end of the first conductive sleeve is provided with a first connector for being detachably connected the atomization assembly, the other end of the first conductive sleeve is provided with an end cap configured for covering the first conductive sleeve. 
         [0014]    In the electronic cigarette according to the present invention, the battery assembly comprises a battery case, the first conductor is a first conductive sleeve made of a conductive paper, the first conductive sleeve is sleeved on the battery case and covers an entire outer peripheral surface of the battery case, the battery case receives a battery configured as the power source, one end of the battery case is provided with a first connector for being detachably connected the atomization assembly, the other end of the battery case is provided with an end cap configured for covering the first conductive sleeve. 
         [0015]    In the electronic cigarette according to the present invention, an outer peripheral surface of the atomization assembly is provided with an insulating paper sleeve defined coaxially with the first conductor, the insulating paper sleeve is located between the first conductor sleeve and the second conductor. 
         [0016]    In the electronic cigarette according to the present invention, the battery assembly and the atomization assembly are detachably connected, and the detachable connection between the battery assembly and the atomization assembly is a threaded connection structure or an interlocking connection structure. 
         [0017]    In the electronic cigarette according to the present invention, the control module comprises a conductive sleeve conduction signal detection circuit, a microprocessor, a transistor switch unit, the transistor switch unit is electrically connected to the microprocessor and the heating wire assembly; 
         [0018]    The conductive sleeve conduction signal detection circuit is configured for detecting whether or not the first conductive sleeve and the second conductor are conducted, and transmitting a trigger signal generated after the conduction to the microprocessor, the microprocessor is configured for controlling an on/off state of the transistor switch unit in accordance with the trigger signal and the smoking signal which is outputted by the airflow sensor to control whether the atomization assembly atomizes the e-liquid. 
         [0019]    In the electronic cigarette according to the present invention, the conductive sleeve conduction signal detection circuit comprises a filter circuit electrically connected to the second conductor for filtering an inputted conduction signal, and a transistor switching circuit electrically connected an output end of the filter circuit, the transistor switching circuit is configured to receive the conduction signal after filtering and output a switching signal to the microprocessor. 
         [0020]    In the electronic cigarette according to the present invention, the filter circuit comprises a first resistor, a second resistor, a first capacitor and a second capacitor, a common terminal of the first resistor, the first capacitor and the second capacitor is grounded, the other end of the first resistor, the other end of the first capacitor and one end of the second resistor are electrically connected to the second conductor, the other end of the second resistor and the other end of the second capacitor are connected to the transistor switching circuit. 
         [0021]    In the electronic cigarette according to the present invention, the transistor switching circuit comprises a first transistor, a second transistor, a third resistor, a fourth resistor and a fifth resistor; a base of the first transistor is connected with the filter circuit, an emitter of the first transistor is grounded, a collector of the first transistor is connected to one end of the third resistor and one end of the fourth resistor, the other end of the third resistor is electrically connected to the power source, and the other end of the fourth resistor is connected to a base of the second transistor, an emitter of the second resistor is electrically connected to the power source, a collector of the second resistor is electrically connected to one end of the fifth resistor and the microprocessor, and the other end of the fifth resistor is grounded. 
         [0022]    In the electronic cigarette according to the present invention, the conductive sleeve conduction signal detection circuit comprises a filter circuit electrically connected to the second conductor for filtering an inputted conduction signal, and a comparison circuit electrically connected to an output terminal of the filter circuit, a positive input terminal of the comparison circuit receives the conduction signal after filtering and outputs a comparison result signal to the microprocessor. 
         [0023]    In the electronic cigarette according to the present invention, the battery assembly is provided with a battery configured as the power source; one conductive sleeve selected from both the first conductive sleeve and the second conductor is electrically connected to a positive electrode of the battery. 
         [0024]    In the electronic cigarette according to the present invention, the atomization assembly and the battery assembly are arranged coaxially. 
         [0025]    The present invention further provides an atomization control method of an electronic cigarette, the electronic cigarette comprises an atomization assembly and a battery assembly, a heating wire assembly is defined in the atomization assembly, the battery assembly is provided with a power source for supplying electrical power to the heating wire assembly so that the atomization assembly atomizes e-liquid to form smoke; the electronic cigarette further comprises a control module electrically connected to the power source and the heating wire assembly respectively, and an airflow sensor configured for transmitting a smoking signal to the control module when the airflow sensor detects that a user is smoking; a first conductor is provided on an outer peripheral surface of the battery assembly; a suction nozzle for a user to smoke is provided on an end of the atomization assembly opposite to the battery assembly; and a second conductor is provided on the outer peripheral surface of the suction nozzle; the control method comprises following steps. 
         [0026]    S1. conducting the first conductor and the second conductor with user&#39;s skin when the user contacts the first conductor and the second conductor with the skin simultaneously, so as to generate a conduction signal to the control module; 
         [0027]    S2. controlling the power source to supply the electrical power to the heating wire assembly to atomize e-liquid when the control module receives the conduction signal and a smoking signal, the conduction signal is generated by that the first conductor and the second conductor are conducted. 
         [0028]    Generally, applications of the electronic cigarette and the atomization control method thereof of the present invention have following advantages, the first conductor is provided on the outer peripheral surface of the battery assembly, and the outer peripheral surface of the suction nozzle is provided with a second conductor, when smoking, the user directly holds on the first conductor by fingers and holds on the suction nozzle by a mouth, so as to realize contacts between the conductive sleeves at different positions on the outer surface of the electronic cigarette and the user&#39;s skin at the same time, and to transmit the conduction signal to the control module, meanwhile the airflow sensor is triggered, then the airflow sensor outputs a smoking signal to the control module, the control module controls the power source to supply the heating wire assembly to atomize the e-liquid and start the electronic cigarette working after receiving the conduction signal and the smoking signal. 
         [0029]    Therefore, the present invention can reduce a probability that the electronic cigarette is mistakenly triggered, effectively solves the problem in the prior art that the electronic cigarette works when the key switch, the touch switch or the airflow sensor is often mistakenly triggered, resulting in a change of deterioration of taste of the e-liquid of the electronic cigarette caused by repeated oxidization, a short electronic cigarette life, low safety and other issues. Moreover, by providing the structure of the present invention, it is possible to reduce conditions of the packaging apparatus for transporting the electronic cigarette, thus to facilitate the transportation and the transportation is more secure. In addition, during a using process, the structure meets user habits that the user can smoke when the fingers are held on the battery assembly and the mouth is held on the suction nozzle, it is more user-friendly, improves user experience, so as to avoid a complex using problem that the touch keys or switches are needed to be touched in the prior art. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0030]    The present invention will be further described with reference to the accompanying drawings and embodiments in the following. 
           [0031]      FIG. 1  is an explosion view of an electronic cigarette provided by one of the preferred embodiments of the present invention; 
           [0032]      FIG. 2  is a cross-sectional view of the electronic cigarette shown in  FIG. 1 ; 
           [0033]      FIG. 3  is a structural schematic view of the battery assembly of the electronic cigarette shown in  FIG. 1 ; 
           [0034]      FIG. 4  is a structural schematic view of the atomization core of the atomization assembly in the electronic cigarette shown in  FIG. 1 ; 
           [0035]      FIG. 5  is an explosion view of the atomization core in  FIG. 4 ; 
           [0036]      FIG. 6  is a schematic view of the structure of the fixing block of the atomization core shown in  FIG. 5 ; 
           [0037]      FIG. 7  is a structural schematic view of the electronic cigarette provided by a second preferred embodiment of the present invention; 
           [0038]      FIG. 8  is a schematic view of the structure of the fixing block of the atomization core shown in  FIG. 7 ; 
           [0039]      FIG. 9  is a structural diagram of the control module of the electronic cigarette shown in  FIG. 1 ; 
           [0040]      FIG. 10  is a configuration diagram of the conductive sleeve conduction signal detection circuit of a first kind of the control module shown in  FIG. 9 ; 
           [0041]      FIG. 11  is a configuration diagram of the conductive sleeve conduction signal detection circuit of a second kind of the control module shown in  FIG. 9 ; 
           [0042]      FIG. 12  is a circuit diagram of a first kind of the control module shown in  FIG. 9 ; 
           [0043]      FIG. 13  is a circuit diagram of a second kind of the control module shown in  FIG. 9 . 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0044]    To make the technical feature, objective and effect of the present application be understood more clearly, now the specific implementation of the present application is described in detail with reference to the accompanying drawings and embodiments. 
         [0045]      FIG. 1  and  FIG. 2  show an electronic cigarette provided by one of the preferred embodiments of the present invention, the electronic cigarette comprises an atomization assembly  1  and a battery assembly  5 , the battery assembly  5  is electrically connected to the atomization assembly  1  and is configured for supplying electrical power to the atomization assembly  1 , the atomization assembly  1  and the battery assembly  5  are co-axially defined. The atomization assembly  1  comprises a suction nozzle  2 , an e-liquid cup assembly  3  and a atomization core  4  which are connected successively, the suction nozzle  2  and the atomization core  3  are respectively connected to two ends of the e-liquid cup assembly  3 , and the battery assembly  5  is connected to one end of the atomization core  4  opposite to the suction nozzle  2 . 
         [0046]    As shown in  FIGS. 3-4 , a heating wire assembly  42  is defined in the atomization assembly  1 , the battery assembly  5  is provided with a power source for supplying electrical power to the heating wire assembly  42  so that the atomization assembly  1  atomizes e-liquid to form smoke. The electronic cigarette further comprises a control module  53  electrically connected to the power source and the heating wire assembly  42 , respectively, and an airflow sensor  54  configured for transmitting a smoking signal to the control module  53  when the airflow sensor  54  detects that a user is smoking. 
         [0047]    As shown in  FIG. 1 , a first conductor  51  is provided on an outer peripheral surface of the battery assembly  5 , a suction nozzle  2  for a user to smoke with is provided on an end of the atomization assembly  1  opposite to the battery assembly  5 ; and a second conductor  21  is provided on an outer peripheral surface of the suction nozzle  2 ; one conductor of the first conductor  51  and the second conductor  21  is electrically connected to the control module  53  and the other conductor is electrically connected to the power source, so that an electrical potential of the conductor electrically connected to the power source is higher than an electrical potential of the conductor electrically connected to the control module  53 . Therefore, the conductor electrically connected to the power source can be directly or indirectly electrically connected to the power source, as long as the potential of the conductor is higher than the potential of the conductor electrically connected to the control module  53 . 
         [0048]    When the user is smoking, the user contacts the first conductive sleeve and the second conductor  21  through skin, respectively, so that the first conductive sleeve and the second conductor  21  are conducted, the control module  53  controls the power source to supply the electrical power to the heating wire assembly  42  to atomize the e-liquid when the control module  53  receives a conduction signal and a smoking signal, the conduction signal is generated by that the first conductive sleeve and the second conductor  21  are conducted. 
         [0049]    In the present embodiment, the second conductor  21  is provided at the suction nozzle  2  of the electronic cigarette, the first conductor  51  is provided on the outer peripheral surface of the battery assembly  5 , namely, only when the user skin contacts with the first conductor  51  and the second conductor  21 , the first conductor  51  and the second conductor  21  are turned on, meanwhile, the airflow sensor  54  outputs a signal, then the electronic cigarette is triggered to atomize, the electronic cigarette operates normally, effectively avoiding a defect of an automatically started electronic cigarette in packages during a process of transporting the electronic cigarette. 
         [0050]    As shown in  FIG. 1 , the first conductor  51  and the second conductor  21  are spaced apart from each other on an outer peripheral wall of the electronic cigarette, and the first conductor  51  is located on the outer peripheral wall of the battery assembly  5 , the second conductor  21  is defined on the outer surface of the suction nozzle  2 . 
         [0051]    Preferably, the first conductor  51  and the second conductor  21  are made of a metal conductive material, so that the structure of the electronic cigarette is reliable. The metal material may be a material such as gold, silver, copper, iron or stainless steel, and is not particularly limited thereto. 
         [0052]    As shown in  FIG. 3 , the battery assembly  5  comprises the first conductor  51 , the first conductor  51  is a hollow cylindrical structure, and receives a battery  52  configured as the power source, one end of the first conductor  51  is provided with a connector  55  for being detachably connected the atomization core  4 , the other end of the first conductor  51  is provided with an end cap  56  configured for covering the first conductive sleeve. Since the user normally holds on the battery assembly  5  by fingers at the smoking time, the structure is not only simple and compact, but also allows the user to well contact with the first conductor  51  during using, and it prevents the first conductor  51  defined at one point of the battery assembly  5  from being difficultly to be contacted with. 
         [0053]    Understandably, in other embodiments, the battery assembly  5  comprises a battery case (not labeled in drawings), the first conductor  51  is a first conductive sleeve made of a conductive paper (not shown in drawings), the first conductive sleeve is sleeved on the battery case and covers an entire outer peripheral surface of the battery case, and the battery case receives a battery  52  configured as the power source, one end of the first conductive sleeve is provided with a connector  55  for being detachably connected the atomization core  4 , the other end of the first conductive sleeve is provided with an end cap  56  configured for covering the first conductive sleeve. The present embodiment does not limit a specific structure of the first conductor  51  as long as it can be provided on the outer peripheral surface of the battery assembly  5  and is electrically connected to the control module  53  or the battery  52  of the electronic cigarette. The conductive paper can not only imitate a real cigarette, but also improve the user&#39;s comfort. 
         [0054]    As shown in  FIG. 2 , the atomization assembly  1  comprises the suction nozzle  2 , the e-liquid assembly  3  and the atomization core  4 , the suction nozzle  2  and the atomization core  4  are defined at two ends of the e-liquid assembly  3 , respectively. The second conductor  21  is sleeved on the outer peripheral surface of the suction nozzle  2 . By providing the second conductor  21  on the suction nozzle  2 , it is possible to make it easy for the user to ensure that the second conductor  21  comes into contact with the user&#39;s skin when the user is smoking, and then it is more convenient for the user to use and thereby improves the user&#39;s experience. 
         [0055]    It is preferred that the second conductor  21  is coated on an entire outer peripheral surface of the suction nozzle  2 . 
         [0056]    Preferably, the second conductor  21  is spaced apart from the first conductor  51  in the battery assembly  5  to ensure an electrical insulation between the first conductor  51  and the second conductor  21 . In the present embodiment, the first conductor  51  and the second conductor  21  are respectively provided at two ends of the e-liquid cup assembly  3 , and the outer peripheral surface of the e-liquid cup assembly  3  is made of an insulating material to achieve an electrical isolation between the first conductor  51  and the second conductor  21 . 
         [0057]    Preferably, an outer peripheral surface of the e-liquid cup assembly  3  is provided with an insulating paper sleeve (not shown in drawings) defined coaxially with the first conductor  51  and the second conductor  21 , the insulating paper sleeve is located between the first conductor  51  and the second conductor  21 . 
         [0058]    When the user smokes, the skin comes into contact with the first conductor  51  and the second conductor  21  so that the first conductor  51  and the second conductor  21  are conducted, and the control module  53  controls the power supply to supply the electrical power to the heating wire assembly  42  to atomize the e-liquid to enable the electronic cigarette to operate normally after receiving the conduction signal and the smoking signal, the conduction signal is generated by that the first conductor  51  and the second conductive are conducted. 
         [0059]    Specific structures of the e-liquid cup assembly  3  and the suction nozzle  2  of the atomization assembly  1  will be described in detail with reference to the embodiments shown in  FIGS. 1-2 . 
         [0060]    As shown in  FIG. 2 , the atomization assembly  1  comprises an e-liquid reservoir  31 , a vent pipe  32 , an e-liquid storage cavity  33  and a connecting member  34 . 
         [0061]    The e-liquid reservoir  31  has a substantially cylindrical structure, and the atomization core  4  and the suction nozzle  2  are respectively connected to two ends of the e-liquid reservoir  31 , the vent pipe  32  is provided in the e-liquid reservoir  31  in an axial direction of the e-liquid reservoir  31 , and the e-liquid storage cavity  33  is formed between the e-liquid reservoir  31  and the vent pipe  32 , and the e-liquid for being atomized by the atomization core  4  is received in the e-liquid storage cavity  33 . In order to facilitate the user to view the remaining amount of the e-liquid in the e-liquid storage cavity  33 , in the present embodiment, the e-liquid reservoir  31  is made of a light-permeable material. 
         [0062]    The vent pipe  32  is made of a conductive material and two ends of the vent pipe  32  are inserted into the suction nozzle  2  and the atomization core  4 , respectively, an airflow passage is surrounded in the inside of the vent pipe  32  for flowing the airflow to the suction nozzle  2 , and the e-liquid storage cavity  33  for storing the e-liquid is formed between the vent pipe  32  and the e-liquid reservoir  31 . 
         [0063]    The connecting member  34  is fixed at one end of the e-liquid reservoir  31  for connection to the atomization core  4 , and the atomization core  4  is detachably connected to the connecting member  34 . In the present embodiment, the detachable connection between the connecting member  34  and the atomization core  4  is a threaded connecting structure, the connecting member  34  is provided with an internal thread at a position to be connected to the atomization core  4 , an outer face of the atomization core  4  is provided with an external thread matched with the internal thread. If other detachable connecting structures are taken between the atomization core  4  and the connecting member  34 , other connecting structures may be provided on the connecting member  34 , such as a snap-on elastic piece having elasticity in a snap connection, and in the present embodiment, the threaded connecting connection is taken for an example, and it is not limited to the threaded connecting connection. 
         [0064]    As shown in  FIG. 1 , an outer end surface of the suction nozzle  2  is provided with a second conductor  21 , and the second conductor  21  is electrically connected to the vent pipe  32 . The suction nozzle  2  is fixed at one end of the e-liquid reservoir  31 , the end of the e-liquid reservoir  31  is opposite to the battery assembly  5 . Two ends of the vent pipe  32  are inserted into the suction nozzle  2  and the atomization core  4 , respectively, and an air outlet (not labeled in figures) communicating with the vent pipe  32  is provided in the suction nozzle  2 , the smoke generated by the atomization core  4  sequentially passes through the vent pipe  32  and the air outlet for the user to inhale. 
         [0065]    Preferably, the outer end surface of the suction nozzle  2  is spherical so that the suction nozzle  2  is beautiful and the outer end surface of the nozzle  2  is easy to clean dirt. In addition, since the suction nozzle  2  having a spherical outer end surface which is structurally stable, it is possible to prevent the suction nozzle  2  from being easily deformed and falling down when a hard object such as teeth in the mouth is held on the suction nozzle  2 . 
         [0066]    Preferably, the suction nozzle  2  is a metallic material and can prevent the suction nozzle  2  from being easily peeled off when the hard object such as the teeth of the mouth is held on the e-liquid reservoir  31 . In this case, the metal may be copper, iron or steel, and is not particularly limited thereto. 
         [0067]    The embodiment of the atomization core  4  of the atomization module  1  will be described in detail with reference to the embodiment shown in  FIGS. 1, 2, 4, 5 and 6 . 
         [0068]    As shown in  FIG. 4 , the atomization core  4  mainly comprises an atomization seat  41 , a heating wire assembly  42 , a fixing block  43 , an atomization cover  44 , an electrode holder  45 , and an atomization electrode assembly  46 . 
         [0069]    The atomization seat  41  is generally a hollow structure in which an air passage  32  is formed, the air passage  32  is communicated with the e-liquid cup assembly  3 , and a side wall of the atomization seat  41  is provided with an e-liquid entering channel communicating with the e-liquid storage cavity  33 . The heating wire assembly  42  is provided in the smoke passage and the smoke generated by the atomization of the heating wire assembly  42  is discharged from the vent pipe  32  through the smoke passage. 
         [0070]    Specifically, the atomization seat  41  is made of a conductive material which comprises a first base body  411  and a second base body  412  connected to each other, and the first base body  411  and the second base body  412  are in interference fit. The first base body  411  is defined on one side of the atomization seat  41  close to the suction nozzle  2  and is in a plug connection with the vent pipe  32 . The second base body  412  is defined on the other side of the atomization seat  41  close to the battery assembly  5  and is detachably connected to the battery assembly  5 . 
         [0071]    As shown in  FIG. 5 , an outer wall of the first base body  411  is provided with an external thread structure detachably connected to the connecting member  34  of the e-liquid cup assembly  3 . The first base body  411  is provided with an installing groove  413  at one end thereof close to the suction nozzle  2 , and the heating wire assembly  42  is provided in the installing groove  413 . In the present embodiment, the installing groove  413  comprises two, two installing grooves  413  are spaced apart from each other and are in communication with the e-liquid storage cavity  33  of the e-liquid cup assembly  3 , the e-liquid adsorbent  421  of the heating wire assembly  42  is installed and fixed at a bottom of the installing grooves  413  and extends into the e-liquid storage cavity  33 . Further, the two installing grooves  413  constitute the e-liquid entering channel inside the atomization seat  41 , and the e-liquid in the e-liquid storage cavity  33  is absorbed by the e-liquid adsorbent  421  through the e-liquid entering channel. 
         [0072]    The heating wire assembly  42  comprises the e-liquid adsorbent  421  and an heating wire  422  (as shown in  FIG. 4 ), the e-liquid adsorbent  421  is made of an e-liquid absorbing material which is fixed to the bottom of the installing grooves  413  and two ends of the e-liquid adsorbents  421  extend into the e-liquid storage cavity  33 , the heating wire  422  is wound around the e-liquid adsorbent  421  and electrically connected to the battery assembly. Since the heating wire assembly  42  is a conventional means of the prior art, a specific structure thereof will not be described here. 
         [0073]    The fixing block  43  is substantially a ring-shaped structure which is embedded and fixed to an inner wall of one end of the first base body  411  close to the suction nozzle  2 . As shown in  FIG. 4 , an elastic conductive arm  431  extending to the smoke passage of the atomization  4  is fixed on the fixing block  43 . The vent pipe  32  is inserted in the smoke passage and a side wall of the elastic conductive arm  431  and a side wall of the vent pipe  32  are resiliently abutted against and electrically connected to each other. 
         [0074]    Further, the elastic conductive arm  431  is electrically connected to the atomization electrode assembly  46 , as shown in  FIG. 6 , the elastic conductive arm  431  is provided with a perforation  432  provided with an electric wire (not shown in figures), one end of the electric wire is connected to the elastic conductive arm  431  and the other end of the electric wire is connected to the atomization electrode assembly  46  so that the elastic conductive arm  431  is electrically connected to the atomization electrode assembly  46 . Since the elastic conductive arm  431  is electrically connected to the vent pipe  32  and the suction nozzle  2 , respectively, thereby achieving that the atomization electrode assembly  46  is electrically connected to the vent pipe  32  and the suction nozzle  2 . 
         [0075]    The atomization cover  44  is provided with a receiving chamber (not labeled in figures) in an axial direction, and one end of the atomization cover  44  opposite to the suction nozzle  2  is sleeved on the first base body  411  and abuts against the heating wire assembly  42  to prevent the heating wire assembly  42  from being rocked. The vent pipe  32  (shown in  FIG. 3 ) is inserted from one end of the atomization cover  44  close to the suction nozzle  2  and is in interference with a side wall of the receiving chamber. 
         [0076]    Further, in order to prevent the e-liquid leaking from a connection of the vent pipe  32  with the atomization cover  44 , a sealing ring (not labeled in figures) set on the vent pipe  32  may be provided in the receiving chamber of the atomization cover  44 , an outer peripheral surface of the seal ring is elastically abutted against a side wall of the receiving chamber, and an inner peripheral surface of the seal ring is elastically abutted against an outer peripheral wall of the vent pipe  32  to achieve as a sealing function. 
         [0077]    As shown in  FIG. 5 , the second base body  412  is generally a hollow cylindrical structure which is in a plug connection with and is in an interference fit with the first base body  411 , a side of the second base body  412  close to the battery assembly  5  is detachably connected to the battery assembly  5 . In the present embodiment, the detachable connection between the second base body  412  and the battery assembly  5  is a screw connection structure, and one side of the second base body  412  close to the battery assembly  5  is provided with an external thread structure, a connection position of the battery assembly  5  which is configured for being connected with the second base body  412  is provided with an internal thread structure adapted to the external thread structure. If other detachable connection structures are taken between the battery assembly  5  and the second base body  412 , other detachable connection structures may be provided on the second base body  412 , for example, a snap-in elastic piece having an elasticity in a snap connection, a buckle or a slot in an interlocking structure, etc. In this embodiment, only a screw connection structure is described as an example, and is not limited to a screw connection structure. 
         [0078]    The electrode holder  45  is made of an insulating material and is fixed in the second base body  412 . The electrode holder  45  is provided with a vent hole  451  communicating with the vent pipe  32 . As shown in  FIG. 4 , the atomization electrode assembly  46  is fixed inside the electrode holder  45 . 
         [0079]    The atomization electrode assembly  46  is fixed on the electrode holder  45 , and one end of the atomization electrode assembly  46  is electrically connected to the elastic conductive arm  431  through an electric wire, and the other end of the atomization electrode assembly  46  is electrically connected to the battery assembly  5 . Specifically, the atomization electrode assembly  46  comprises a third electrode  461  and a fourth electrode  462 , and the third electrode  461  and the fourth electrode  462  are both spring electrodes. The third electrode  461  is electrically connected to the elastic conductive arm  431  through an electric wire, and two ends of the heating wire  422  are electrically connected to the fourth electrode  462  and the atomization seat  41 , respectively. 
         [0080]    As shown in  FIG. 4 , the spring electrode comprises a protective sheath (not labeled in figures), and the protective sheath is provided with a groove (not labeled in figures), a spring and an electrical connector (all are not labeled on the drawings) are slidably connected to the groove. Specifically, one end of the spring is fixed to the bottom of the recess and the other end of the spring is fixedly connected to the electrical connector so that the electrical connector is slidably connected to the groove. When the atomization core  4  is connected to the battery assembly  5 , the electrical connector is resiliently abutted against the battery electrode assembly  57  of the battery assembly  5  to electrically connect to the battery assembly  5 . 
         [0081]    Preferably, a non-slip knurled structure (not shown) may be provided on an outer surface of the second base body  412  in order to facilitate the user to rotate the atomization seat  41  when the atomization core  4  needs to be removed. 
         [0082]    It is preferable that an outer surface of the atomization seat  41  is provided with an air inlet hole  414  which communicates with the vent pipe  32 . In this embodiment, the air inlet hole  414  successively passes through an outer wall of the second base body  412  and an outer wall of the first base body  411 , and is communicated with the vent pipe  32  and the vent hole  451  on the electrode holder  45 . 
         [0083]    In the present embodiment, the atomization core  4  mainly comprises an atomization seat  41 , an heating wire assembly  42 , a fixing block  43 , an atomization cover  44 , an electrode holder  45 , and an atomization electrode assembly  46 . It is to be understood that the atomization core  4  of the present application is not limited to the above-described structure, but may be other structures as long as it can atomize the smoke e-liquid. 
         [0084]    A specific structure of the battery assembly  5  will be described in detail with reference to the embodiment shown in  FIGS. 1, 2 and 3 . 
         [0085]    As shown in  FIG. 3 , the battery assembly  5  comprises the first conductor  51 , the battery  52 , the control module  53 , the airflow sensor  54 , the connector  55 , the end cap  56 , and a battery electrode assembly  57 . 
         [0086]    The first conductor  51  is generally a hollow cylindrical structure, the battery  52  is received and fixed in the first conductor  51 , the battery  52  is mainly configured for supplying power needed by work to the atomization core  4  and the control module  53 . In the present embodiment, the first conductive sleeve is electrically connected to the power source, i.e., the first conductive sleeve is electrically connected to a positive electrode of the battery  52 . Certainly, the power source  22  may be realized by a high-energy capacitor or the like, and is not particularly limited thereto. 
         [0087]    The end cap  25  is fixed at one end of the first conductor  51  opposite to the suction nozzle  2 , an air hole (not labeled in figures) for the airflow to flow is defined on the end cap  25 . Preferably, the end cap  25  is made of a light-transmissive material. 
         [0088]    The connector  55  is made of a conductive material and is electrically connected to the atomization seat  41  of the atomization core  4 . The connector  55  is connected to one end of the first conductor  51  close to the atomization core  4 , and the connector  55  is detachably connected to the atomization seat  41 , and an inner wall of the connector  55  is provided with an internal thread structure for detachably connecting to the atomization seat  41 . 
         [0089]    The battery electrode assembly  57  is fixed to the connector  55  and is electrically connected to the atomization electrode assembly  46  of the atomization core  4 . Specifically, the battery electrode assembly  57  comprises a first electrode  571 , a first insulating sleeve  572 , a second electrode  573 , and a second insulating sleeve  574  which are sequentially connected from the inside to the outside. The third electrode  461  of the atomization electrode assembly  46  is elastically abutted against and electrically connected to the second electrode  573 , and the fourth electrode  462  is elastically abutted and electrically connected to the first electrode  571 . 
         [0090]    The control module  53  and the airflow sensor  54  are fixed in the first conductor  51 , respectively, the control module  53  is electrically connected to the airflow sensor  54  and the battery  52 , respectively. The airflow sensor  54  is mainly used for detecting an airflow signal and generating a pulse signal, the control module  53  is mainly used for receiving the signal from the airflow sensor  54  and receiving the trigger signal of the first conductor  51  and second conductor  21 , and the control module  53  controls the battery  52  to supply power to the atomization core  4  to atomize the e-liquid according to the trigger signal and the pulse signal. 
         [0091]    During an operation of the electronic cigarette, the second conductor  21  of the suction nozzle  2  is electrically connected to the elastic conductive arm  431  through the vent pipe  32 , and the elastic conductive arm  431  is electrically connected to the third electrode  461  of the atomization electrode assembly  46  through the electric wire, and the third electrode  461  is elastically abutted against and electrically connected to the second electrode  573 , the second electrode  573  is electrically connected to the control module  53 , while the control module  53  is electrically connected to the first conductor  51 , and when the human body skin contacts the first conductor and the second conductor  21  respectively, the above-described structure constitutes an electrical connection circuit. 
         [0092]    Further, one end of the heating wire  422  of the heating wire assembly  42  is electrically connected to the atomization seat  41 , the atomization seat  41  is screwed and electrically connected to the connector  55 , and the connector  55  is electrically connected to the control module  53 , and the control module  53  is electrically connected to the airflow sensor  54  by an electric wire, the airflow sensor  54  is electrically connected to the battery  52  through an electric wire, the battery  52  is connected to the first electrode  571  of the battery electrode assembly  57  through an electric wire, and the first electrode  571  is elastically abutted against and electrically connected to the fourth electrode  462  of the atomization electrode assembly  46 , and the fourth electrode  462  is electrically connected to the other end of the heating wire  422  to form an electrical connection circuit. 
         [0093]    Specifically, when the first conductor  51  and the second conductor  21  are contacted simultaneously through user&#39;s skin, the user&#39;s skin enables the first conductor  51  and the second conductor  21  to be conducted; the control module receives the conduction signal produced by that the first conductor  51  and the second conductor  21  are conducted, and detects the smoking signal generated by the airflow sensor  54 , the control module  53  controls the battery  52  to supply the electrical power to the atomization core  4  to atomize e-liquid according to the conduction signal and the smoking signal. 
         [0094]    As shown in  FIG. 9 , the control module  53  comprises a conductive sleeve conduction signal detection circuit  531 , a microprocessor  532 , and a transistor switch unit  533 , the transistor switch unit  533  is electrically connected to the microprocessor  532  and the heater wire assembly  42 , respectively. 
         [0095]    The microprocessor  532  in the control module  53  may be set with a heating time parameter after conduction, for example, in the microprocessor  532 , heating time is 2 to 10 ms after receiving the conduction signal, and this time period is set for a main consideration of electrical contact problems, smokers do not have to keep pressing the two conductors, but only need to press instantly at the beginning to generate an instantaneous conduction signal, even without a conduction signal during the time period, a heating time can be maintained, it can overcome a problem that the heating atomization is immediately turned off after being conducted by the human body as a release of the user, so as to facilitate a use of the user. 
         [0096]    The conductive sleeve conduction signal detection circuit  531  is configured for detecting whether or not the first conductive sleeve and the second conductor  21  are conducted, and transmitting a trigger signal generated after conduction to the microprocessor  532 , meanwhile, the airflow sensor  54  detects an airflow signal and generates a pulse signal. The microprocessor  532  controls an on/off state of the transistor switch unit  533  in accordance with the trigger signal and the pulse signal to control whether the atomization core  4  atomizes the e-liquid. 
         [0097]      FIGS. 10 and 12  show a schematic structural view of the first control module  53  of the present embodiment, the conductive sleeve conduction signal detection circuit  531  comprises a filter circuit  534  and a transistor switching circuit  535 . The filter circuit  534  is electrically connected to the second conductor  21  and is configured for filtering an input conduction signal; the transistor switching circuit  535  is electrically connected an output end of the filter circuit  534 , the transistor switching circuit  535  is configured for receiving a sensing signal after filtering and outputting a switching signal configured as a trigger signal to the microprocessor  532 . 
         [0098]    Specifically, the filter circuit  534  comprises a first resistor R 1 , a second resistor R 2 , a first capacitor C 1  and a second capacitor C 2 , a common terminal of the first resistor R 1 , the first capacitor C 1  and the second capacitor C 2  is grounded, the other end of the first resistor R 1 , the other end of the first capacitor C 1  and one end of the second resistor R 2  are electrically connected to the second conductor  21 , the other end of the second resistor R 2  and the other end of the second capacitor C 2  are connected to the transistor switching circuit  535 . 
         [0099]    The transistor switching circuit  535  comprises a first transistor Q 1 , a second transistor Q 2 , a third resistor R 3 , a fourth resistor R 4  and a fifth resistor R 6 ; a base of the first transistor Q 1  is connected with the filter circuit, an emitter of the first transistor Q 1  is grounded, a collector of the first transistor Q 1  is connected to one end of the third resistor R 3  and one end of the fourth resistor R 4 , the other end of the third resistor R 3  is electrically connected to the power source, and the other end of the fourth resistor R 4  is connected to a base of the second transistor Q 2 , an emitter of the second transistor Q 2  is electrically connected to the power source, a collector of the second transistor Q 2  is electrically connected to one end of the fifth resistor R 6  and the microprocessor  532 , and the other end of the fifth resistor R 6  is grounded. 
         [0100]    The microprocessor  532  is applied as a microcontroller U 1  whose type is MC32P7010A0I, the transistor switch unit  533  comprises a field effect transistor Q 4 , the heating wire  422  is connected between P 1  and P 2 , J 3  is electrically connected to the first conductor  51  and electrically connected to the positive electrode of the battery  52 , J 4  is electrically connected to the second conductor  21 . During operation, a portion of the human body contacts the second conductor  21 , and the other portion of the human body contacts the first conductor  51 . A specific working principle of the circuit is as follows: when the human body is not in contact, a collector of the transistor Q 2  outputs a low level, that is, a signal SIG=logic 0; when someone contacts the first conductor  51  and the second conductor  21 , a signal is firstly filtered by the filter circuit  534 , then flows through the transistor Q 1  to turn on the transistor Q 1 , and then the transistor Q 2  is turned on, so that the signal SIG are changed into a high level, that is, the signal SIG=logic 1. When the microcontroller U 1  detects a signal changed from the low level to the high level, it is known that someone wants to smoke, the microcontroller U 1  waits for a signal of the airflow sensor U 2  until the airflow sensor U 2  has an activated high level, and the microcontroller U 1  controls the field effect transistor Q 4  to turn on, that is, an effective high level of the airflow sensor U 2 , and the signal SIG=logic 1 (i.e., the first conductor  51  and the second conductor  51  are brought into contact), the atomization assembly can operate. 
         [0101]    Through the above circuit, we have realized that when the human body contacts the first conductor  51  and the second conductor  51 , and the airflow sensor  54  also has an effective smoking signal, the electronic cigarette can work properly, avoiding that the situation of the electronic cigarette automatic work takes place in the packaging and transportation process. Due to the packaging or sealing of an electronic cigarette may cause air pressures on both sides of the airflow sensor  54  is different, resulting in the electronic cigarette automatic work; or in the transportation process, such as aircraft, automatic operation of the electronic cigarette may be caused by changes in air pressure, and the electronic cigarette automatic operation for a long time may cause a risk of fire and explosion, and affecting user experience effect. 
         [0102]      FIGS. 11 and 13  show a schematic structural view of the second control module  53  of the present embodiment, which differs from the first control module  53  in that the structure of the conductive sleeve conduction signal detection circuit  531  is different. 
         [0103]    As shown in  FIG. 11 , the conductive sleeve conduction signal detection circuit  531  comprises a filter circuit  534  and a comparison circuit  236 . The filter circuit  534  is electrically connected to the second conductor  21  and is used for filtering the input signal; The comparison circuit  236  is electrically connected to an output terminal of the filter circuit  534 , the comparison circuit  236  comprises a comparator U 3 , a resistor R 10  and a resistor R 11 , a reverse input terminal of the comparator U 3  is electrically connected to a common terminal of the resistor R 10  and the resistor R 11 , the resistor R 10  and the resistor R 11  are used to provide a divided voltage as a voltage reference to the reverse input terminal of the comparator U 3 ; an output terminal of the comparator U 3  is electrically connected to a pin  3  of the microprocessor  532 , the other end of the resistor R 10  is electrically connected to the first conductor  51  and the positive electrode of the battery, the other end of the resistor R 11  is grounded, and a positive input terminal of the comparator U 3  receives a filtered conductive signal and compares the filtered conductive signal with a reference voltage signal of the reverse input terminal, and an output terminal of the comparator U 3  circuit outputs a comparison result signal as a trigger signal to the microprocessor  532 . 
         [0104]      FIGS. 7 and 8  show an electronic cigarette provided in the second embodiment of the present invention, the second embodiment differs from the first embodiment in that the structure of the atomization core  4  is different. 
         [0105]    As shown in  FIG. 7 , the fixing block  43  is substantially a ring-shaped structure which is embedded and fixed to an inner side wall of the first base body  411  close to one end of the suction nozzle  2 . As shown in  FIG. 8 , the fixing block  43  is a silicone member, an elastic piece (not labeled in figures) is defined on the fixing block  3 , the elastic piece has at least one elastic conductive arm  431  extending into the smoke passage of the atomization seat  41 , the vent pipe  32  is inserted in the smoke passage, and the elastic conductive arm  431  is resiliently abutted against and electrically connected to a sidewall of the vent pipe  32 . 
         [0106]    The present embodiment arranges the fixing block  43  and the elastic piece structure independently from each other, and is actually more reasonable in practice, and the elastic piece structure has a plurality of elastic conductive arms  431 , and by increasing the number of the elastic conductive arms  431 , stability of electrical connections between the elastic conductive arms  431  and the vent pipe  32  is increased to prevent a contact between the elastic conductive arms  431  and the vent pipe  32  from being poor. 
         [0107]    Further, one elastic conductive arm  431  is electrically connected to the atomization electrode assembly  46 , and as shown in  FIG. 8 , the elastic conductive arm  431  is provided with a perforation  432  through which an electric wire (not labeled in figures) passes, one end of the electric wire is connected to the elastic conductive arm  431  and the other end of the electric wire is connected to the atomization electrode assembly  46  so that the elastic conductive arm  431  is electrically connected to the atomization electrode assembly  46 . Since the elastic conductive arm  431  is electrically connected to the vent pipe  32  and the suction nozzle  2 , then the atomization electrode assembly  46  is electrically connected to the vent pipe  32  and the suction nozzle  2 . It is to be understood that the above-described connection between the atomization assembly  1  and the battery assembly  2  is a detachably connection, and certainly, the structure of the battery assembly  2  and the atomization assembly  1  may be an in-detachable and integrated structure, namely, the electronic cigarette may be a disposable electronic cigarette, or other electronic cigarettes capable of repeatedly adding e-liquid to be repeatedly used, and the structure thereof is not particularly limited thereto. 
         [0108]    The present invention further provides an atomization control method of an electronic cigarette, the electronic cigarette is the above electronic cigarette, the atomization control method of an electronic cigarette comprises following steps: 
         [0109]    S1. conducting the first conductor  51  and the second conductor  21  by user&#39;s skin when the user contacts the first conductive sleeve and the second conductor  21  through the skin simultaneously, so as to generate a conduction signal to the control module  53 ; 
         [0110]    S2. controlling the power source to supply the electrical power to the heating wire assembly  42  to atomize e-liquid when the control module  53  receives the conduction signal and a smoking signal, the conduction signal is generated by that the first conductor  51  and the second conductor  21  are conducted. 
         [0111]    In general, the electronic cigarette and an atomization control method thereof of the present invention has following advantageous effects: 
         [0112]    (1) The first conductor is provided on the outer peripheral surface of the battery assembly, and the outer peripheral surface of the suction nozzle is provided with a second conductor, when smoking, the user directly holds on the first conductive sleeve by fingers, a mouth is held on the suction nozzle, so as to realize contacts between the conductive sleeves at different positions on the outer surface of the electronic cigarette and the user skin at the same time, and to transmit the conduction signal to the control module so that the control module controls the power source to supply the heating wire assembly to atomize the e-liquid and starts the electronic cigarette working. 
         [0113]    Therefore, the present invention can reduce a probability that the electronic cigarette is mistakenly triggered, effectively solves the problem in the prior art that the electronic cigarette works when the key switch, the touch switch or the airflow sensor is often mistakenly triggered, resulting in a change of deterioration of taste of the e-liquid of the electronic cigarette caused by repeated oxidization and, a short electronic cigarette life, low safety and other issues. Moreover, by providing the structure of the present invention, it is possible to reduce conditions of the packaging apparatus for transporting the electronic cigarette, thus to facilitate the transportation and the transportation is more secure. In addition, during a using process, the structure meets user requirements that the user can smoke when the fingers are held on the battery assembly and the mouth is held on the suction nozzle, it is more user-friendly, improves user experience, so as to avoid a complex using problem that the touch keys or switches are needed in the prior art, and to avoid the problem that the airflow sensor cannot detect the smoke signal when the smoking force is small, the e-liquid enters the battery assembly from the airflow channel, and other problems. 
         [0114]    (2) Since the atomization assembly is detachably connected to the battery assembly, it is convenient for the user to replace the atomization assembly after that the atomization assembly is damaged. 
         [0115]    While the embodiments of the present application are described with reference to the accompanying drawings above, the present application is not limited to the above-mentioned specific implementations. In fact, the above-mentioned specific implementations are intended to be exemplary not to be limiting. In the inspiration of the present application, those ordinary skills in the art can also make many modifications without breaking away from the subject of the present application and the protection scope of the claims. All these modifications belong to the protection of the present application.

Technology Category: a