Abstract:
Disclosed is an electronic cigarette, comprising an atomization device ( 12 ) provided with a cigarette liquid cup ( 11 ), and a suction nozzle ( 30 ) arranged at one end of the cigarette liquid cup, wherein the cigarette liquid cup ( 11 ) has a cigarette liquid storage space ( 111 ), one end of the liquid smoke storage space ( 111 ) is sealed and the other end thereof is open, and wherein the suction nozzle ( 30 ) is removably connected to the open end of the cigarette liquid cup ( 11 ). Since the suction nozzle ( 30 ) of the electronic cigarette is removably connected to the open end of the cigarette liquid cup ( 11 ), the number of members is small, the structure is simple, and it is convenient to add cigarette liquid.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention relates to electronic cigarettes, especially an electronic cigarette, in which a mouthpiece and an e-liquid cup are disposed to be detachably connected, thus to facilitate adding e-liquid. 
       BACKGROUND OF THE INVENTION 
       [0002]    Conventional reusable electronic cigarette disposes a special cover body at an open end of an e-liquid cup, and makes the cover body and the e-liquid cup threadedly connected. When needing to add e-liquid, the cover body is unscrewed, then add e-liquid into the e-liquid cup. The electronic cigarette has many components, and the structure of the electronic cigarette is very complicated. Meanwhile, a battery of the conventional electronic cigarette electrically connects to one end of an atomization device, making the whole length of the electronic cigarette too long, and not convenient for carrying. 
       SUMMARY OF THE INVENTION 
       [0003]    A problem to be solved by the present invention is to provide an electronic cigarette with simple structure, and which is convenient to add e-liquid. 
         [0004]    To solve the aforementioned technical problems, the present invention provides an electronic cigarette, including an atomization device disposed with an e-liquid cup, and a mouthpiece disposed at one end of the e-liquid cup. The e-liquid cup has an e-liquid storage space. One end of the e-liquid storage space is sealed and the other end of the e-liquid storage space is open. The mouthpiece is detachably connected with an open end of the e-liquid cup. 
         [0005]    Furthermore, the open end of the e-liquid cup disposes a fixed groove abutting with a corresponding end of the mouthpiece; the fixed groove disposes a liquid-filling port communicating with the liquid-storage space of the e-liquid cup. 
         [0006]    Furthermore, the corresponding end of the mouthpiece disposes a fixed boss matching with the fixed groove to insert into the fixed groove. 
         [0007]    Furthermore, the e-liquid cup and the mouthpiece are threadedly connected; a position of the e-liquid cup abutting with the mouthpiece disposes a first screw connection portion, and the mouthpiece correspondingly disposes a second screw connection portion to match with the first screw connection portion. 
         [0008]    Furthermore, the first screw connection portion is a first thread ring which is disposed on one end of the mouthpiece abutting with the e-liquid cup, and the first thread ring disposes a first thread thereon; or the first screw connection portion is formed by a first thread which is directly disposed on a sidewall of the corresponding end of the mouthpiece; the second screw connection portion is a second thread ring which is disposed on a corresponding end of the e-liquid cup, and the second thread ring disposes a second thread thereon; or the second screw connection portion is formed by the second thread which is directly disposed on a corresponding sidewall of the fixed groove; the first thread and the second thread are mutually matched. 
         [0009]    Furthermore, the fixed boss of the mouthpiece is sheathed with a sealing ring which is tensioningly fixed between the fixed boss and the fixed groove. 
         [0010]    Furthermore, the e-liquid cup and the mouthpiece are mutually inserting connected; and one end of the mouthpiece abutting with the e-liquid cup disposes a sealing ring, and tensioningly fixed with the fixed groove by the sealing ring. 
         [0011]    Furthermore, the end of the mouthpiece abutting with the e-liquid cup correspondingly disposes a clamping slot for clamping the sealing ring; or the clamping slot is disposed on a corresponding sidewall of the fixed groove. 
         [0012]    Furthermore, the electronic cigarette further comprises a battery which is electrically connected with the atomization device; one end of the e-liquid cup away from the mouthpiece has a cavity body which is concave, the battery is accommodated and fixed in the cavity body. 
         [0013]    Furthermore, the e-liquid cup comprises an outer cup body and an inner cup body; a first end of the inner cup body is hermetically connected with the outer cup body so as to matching enclose with the outer cup body to form the e-liquid storage space; a internal of the inner cup body is hollow and forms the cavity body to accommodate the battery. 
         [0014]    Furthermore, the atomization device further comprises an atomizer disposed with a heating wire; the heating wire is electrically connected with the battery to vaporize e-liquid to aerosol when power on. 
         [0015]    Furthermore, an external of the battery is sheathed with a battery rod; the battery rod and the e-liquid cup are disposed to be detachably connected. 
         [0016]    Furthermore, corresponding ends of the inner cup body and the battery rod correspondingly disposes a first electrode assembly and a second electrode assembly which are used to electrically connect with the atomizer and the battery and make the e-liquid cup and the battery rod being securely abutted; the first electrode assembly includes a first seat body and a first electrode pole which are mutually insulated and respectively connects with two ends of the heating wire to form a positive electrode and a negative electrode of the atomizer; the second electrode assembly includes a second seat body and a second electrode pole which are mutually insulated and correspondingly connects to a positive electrode and a negative electrode of the battery respectively. 
         [0017]    Furthermore, the atomizer is fixed between the mouthpiece and the battery by a supporting piece; the supporting piece is hollow tube structure, and a central of the supporting piece forms an atomization chamber for conducting an air path and accommodating the atomizer; the atomizer further includes a liquid-guiding rod with two ends thereof stretching into the e-liquid cup to absorb e-liquid; the heating wire winds on the liquid-guiding rod; a sidewall of the supporting piece correspondingly disposes a latching opening radially through the sidewall for the liquid-guiding rod passing through. 
         [0018]    Furthermore, part or all of the outer cup body is disposed as transparent or semitransparent. 
         [0019]    The advantage of the embodiment of the present invention are: the open end of the e-liquid cup and the corresponding end of the mouthpiece are directly disposed a connecting portion to achieve detachable connection, there are few components and the whole structure is simple; by disposing a liquid filling port at the abutting position between the e-liquid cup and the mouthpiece can achieve adding e-liquid right after separating the mouthpiece and the e-liquid cup; meanwhile, makes the battery being accommodated in the e-liquid cup, it is then effectively to reduce the whole length of the electronic cigarette; and by disposing the outer cup body of the e-liquid cup as transparent or semitransparent, it is achieved to real-time monitor on the e-liquid in the e-liquid cup, and it is convenient to add e-liquid timely. 
         [0020]    Embodiments of the present invention will be further described in detail in the following drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0021]      FIG. 1  is a structural schematic view of an electronic cigarette according to an embodiment of the present invention. 
           [0022]      FIG. 2  is a sectional structural schematic view of an electronic cigarette according to a first embodiment of the present invention. 
           [0023]      FIG. 3  is a sectional structural schematic view of a mouthpiece according to the first embodiment of the present invention. 
           [0024]      FIG. 4  is a sectional structural schematic view of an atomization device according to the first embodiment of the present invention. 
           [0025]      FIG. 5  is a sectional structural schematic view of an electronic cigarette according to a second embodiment of the present invention. 
           [0026]      FIG. 6  is a sectional structural schematic view of a mouthpiece according to a second embodiment of the present invention. 
           [0027]      FIG. 7  is a sectional structural schematic view of an atomization device according to the second embodiment of the present invention. 
           [0028]      FIG. 8  is a sectional structural schematic view of a battery rod according to the second embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0029]    Referring to  FIG. 1  to  FIG. 8 , an embodiment of the present invention provides an electronic cigarette, including an atomization device  10  and a battery  20 . 
         [0030]    The atomization device  10  is used to vaporize e-liquid to aerosol, and includes an e-liquid cup  11  and an atomizer  12 . 
         [0031]    In the embodiment, the e-liquid cup  11  forms a main rod body of the electronic cigarette, and disposes a liquid-storage space  111  for storing e-liquid. One end of the liquid-storage space  111  is sealed, and the other end of the e-liquid-storage space  111  is disposed as open shape for adding e-liquid. An open end of the e-liquid cup  11  disposes a mouthpiece  30  which is hermetically connected with the e-liquid cup  11 . A central of the mouthpiece  30  defines an air-inhalation hole  31  to communicate with an air path for users inhaling in the aerosol produced by vaporization. 
         [0032]    The atomizer  12  is disposed between the mouthpiece  30  and the battery  20 . The battery  20  is electrically connected with the atomizer  12  to supply power to the atomizer  12 . 
         [0033]    The atomizer  12  includes a heating wire  121  and a liquid-guiding rod  122 . The heating wire  121  winds on the liquid-guiding rod  122 . The heating wire  121  and the battery  20  are electrically connected to vaporize e-liquid to aerosol after power on. The liquid-guiding rod  122  is made of fiberglass or other high temperature resistant fiber materials, and is used to absorb e-liquid to supply to the heating wire  121  for heating. One end portion of an air-inhalation hole  31  is mutually abutted with the atomizer  12 , and a hole wall of the air-inhalation hole  31  forms a guiding channel for guiding aerosol flow thereof. 
         [0034]    Referring to  FIG. 2 ,  FIG. 4 ,  FIG. 5  and  FIG. 7 , in the embodiment, the atomizer  12  is supported and fixed between the mouthpiece  30  and the battery  20  by a supporting piece  13 . The supporting piece  13  is a hollow tube structure, and a central of the supporting piece  13  forms an atomization chamber for conducting the air path and accommodating the atomizer  12 . 
         [0035]    The atomizer  12  is radially disposed in the atomization chamber. Two ends of the liquid-guiding rod  122  respectively stretch out of the atomization chamber, and then stretch into the e-liquid cup  11  to absorb e-liquid. A sidewall of the supporting piece  13  correspondingly defines a latching opening  131  radially through the sidewall thereof for the liquid-guiding rod  122  passing through. 
         [0036]    In the embodiment, the mouthpiece  30  is detachably connected to the open end of the e-liquid cup  11 . 
         [0037]    Specifically, referring to  FIG. 4  and  FIG. 7 , the e-liquid cup  11  includes an outer cup body  112  and an inner cup body  113 . Both the outer cup body  112  and the inner cup body  113  are hollow tube structure. The inner cup body  113  is disposed in the outer cup body  112 , and one first end of the inner cup body  113  is hermetically connected with the outer cup body  112 , and one second end of the inner cup body  113  is not connected with the outer cup body  112  so as to form an opening for adding e-liquid. The outer cup body  112  and the inner cup body  113  cooperatively enclose to form an annular space, thus forming the e-liquid storage space  111 . 
         [0038]    In the embodiment, the outer cup body  112  and the inner cup body  113  are disposed as separate bodies. The first end of the inner cup body  113  and a corresponding end of the outer cup body  112  are hermetically connected by an end cover  114 . Certainly, the first end of the inner cup body  113  and the corresponding end of the outer cup body  112  also may be disposed to be integrally formed. 
         [0039]    Continue referring to  FIG. 4  and  FIG. 7 , in the embodiment, the open end of the e-liquid cup  11  disposes a fixed groove  114 . The fixed groove  114  disposes a liquid-filling port  115  communicating with the liquid-storage space  111  of the e-liquid cup  11 . A corresponding end of the mouthpiece  30  and the fixed groove  114  are securely connected and seal the liquid-filling port  115 . 
         [0040]    Referring to  FIG. 2 , as a preferable embodiment, the e-liquid cup  11  and the mouthpiece  30  are disposed to be threadedly connected. Specifically, a position of the e-liquid cup  11  abutting with the mouthpiece  30  disposes a first screw connection portion, and the mouthpiece  30  correspondingly disposes a second screw connection portion to match with the first screw connection portion. 
         [0041]    Referring to the embodiment shown in  FIG. 2 , the first screw connection portion is a first thread ring  33  which is disposed on one end of the mouthpiece  30  abutting with the e-liquid cup  11 , and the second screw connection portion is a second thread ring  116  which is disposed at a corresponding end of the e-liquid cup  11 . The first thread ring  33  and the second thread ring  116  correspondingly dispose a first thread and a second thread which are mutually matched. 
         [0042]    Or, as an alternative embodiment, the first thread also may be directly disposed on a sidewall of the corresponding end of the mouthpiece  30  to form the first screw connection portion, and it is not necessary to additionally dispose the first thread ring  33 ; the second thread also may be directly disposed on a corresponding sidewall of the e-liquid cup  11  to form the second screw connection portion, and then it is not necessary to additionally dispose the second thread ring  116 . 
         [0043]    Referring to  FIG. 3  and  FIG. 6 , in the embodiment, a corresponding end of the mouthpiece  30  corresponding to the fixed groove  114  disposes a fixed boss  32 . The fixed boss  32  matches with the fixed groove  114 , making the fixed boss  32  be capable of inserting into the fixed groove  114 . 
         [0044]    Referring to  FIG. 2 ,  FIG. 3  and  FIG. 4 , the first thread ring  33  is sheathed on the fixed boss  32  and forms the first screw connection portion. An outer sidewall of the first thread ring  33  disposes an outer thread. The second thread ring  116  is fixed on the e-liquid cup  11  and forms the second screw connection portion. An inner sidewall of the second thread ring  116  disposes an inner thread matching with the outer thread. 
         [0045]    In the embodiment, the fixed boss  32  of the mouthpiece  30  further disposes a sealing ring  34  thereon. The sealing ring  34  is tensioningly fixed between the fixed boss  32  and the fixed groove  114  to further guarantee the hermetical connection between the mouthpiece  30  and the e-liquid cup  11 . 
         [0046]    As another preferable embodiment, the e-liquid cup  11  and the mouthpiece  30  also may be disposed as inserting connection. Referring to the embodiment shown in  FIG. 5 ,  FIG. 6  and  FIG. 7 , the fixed boss  32  of the mouthpiece  30  is sheathed with a sealing ring  35 . The mouthpiece  30  is tensioningly fixed in the fixed groove  114  by the sealing ring  35 . In order to avoid the sealing ring  35  falling off, the fixed boss  32  correspondingly disposes a clamping slot  36  for clamping the sealing ring  35 ; or the clamping slot  36  also may be disposed on a corresponding sidewall of the fixed groove  114 , and correspondingly fix the sealing ring  35  on the e-liquid cup  11 . 
         [0047]    In the embodiment, one end of the e-liquid cup  11  away from the mouthpiece  30  has a cavity body  116  which is concave. The battery  20  is accommodated and fixed in the cavity body  116 . Because the inner cup body  113  is hollow tube structure, that is to say, the hollow part of the inner cup body  113  forms the cavity body  116  being used to accommodate the battery  20 . 
         [0048]    Referring to  FIG. 8 , an outer of the battery  20  is sheathed with a battery rod  21 . The battery  20  is accommodated and fixed in the cavity body  116  by the battery rod  21 , and achieves electrically connection with the atomizer  12 . One end of the battery rod  21  away from the atomizer  12  disposes a battery cover  22 . The battery  20  is sealed and fixed in the battery rod  21  by the battery cover  22 . 
         [0049]    In the embodiment, the e-liquid cup  11  and the battery rod  21  are disposed to be detachably connected. Corresponding ends of the inner cup body  113  and the battery rod  21  correspondingly dispose a first electrode assembly  40  and a second electrode assembly  50 . The first electrode assembly  40  and the second electrode assembly  50  are used to electrically connect with the atomizer  12  and the battery  20 , and make the e-liquid cup  11  and the battery rod  21  being securely abutted. 
         [0050]    Specifically, referring to  FIG. 4  and  FIG. 7 , the first electrode assembly  40  includes a first seat body  41  and a first electrode pole  42 . Both the first seat body  41  and the first electrode pole  42  are made of metal conductive material, and are insulated by a first insulation sleeve  43  disposed therebetween. The first seat body  41  and the first electrode pole  42  are electrically connected to the two ends of the heating wire  121  respectively to form a positive electrode and a negative electrode of the atomizer  12 . 
         [0051]    In the embodiment, an internal of the seat body  41  is hollow. The first electrode pole  42  uses the first insulation sleeve  43  to be tensioningly fixed in the first seat body  41  and insulated from the first seat body  41 . The first electrode pole  42  is also disposed as a structure of the internal being hollow. The hollow part in the internal of the first electrode pole  42  forms an air vent for external air entering into the atomizer  10 . 
         [0052]    The second electrode assembly  50  and the first electrode assembly  40  are matching abutted, and includes a second seat body  51  and a second electrode pole  52  which are mutually insulated. Both the second seat body  51  and the second electrode pole  52  are made of metal conductive material, and correspondingly connect to a positive electrode and a negative electrode of the battery  20  respectively. A central of the second seat body  51  and the second electrode pole  52  disposes a second insulation sleeve  53 , and achieves insulation by the second insulation sleeve  53 . Both the second seat body  51  and the second electrode pole  52  are hollow structures. The second electrode pole  52  uses the second insulation sleeve  53  tensioningly fixed in the second seat body  51  and insulates from the second seat body  51 . 
         [0053]    Referring to  FIG. 2  and  FIG. 5 , an abutting position of the first seat body  41  and the second seat body  51  respectively disposes mutually matched thread to achieve a screw connection between the e-liquid cup  11  and the battery rod  21 . 
         [0054]    As an alternative embodiment, the e-liquid cup  11  and the battery rod  21  also may be disposed as magnetic connection. That is at the abutting position of the e-liquid cup  11  and the battery rod  21  respectively disposes a first magnetic part and a second magnetic part which are mutually magnetic attracted, making the e-liquid cup  11  and the battery rod  21  being securely abutted. 
         [0055]    Because the first electrode assembly  40  is disposed at one end of the e-liquid cup  11  near the battery  20 , and the second electrode assembly  50  is correspondingly disposed at one end of the battery  20  near the atomizer  12 , and the first electrode assembly  40  and the second electrode assembly  50  are matching abutted, when specifically disposing the first magnetic part and the second magnetic part, in order to reduce components and make the structure of the electronic cigarette more simple, the first seat body  41  may be directly made of conductive magnet or magnetic material to form the first magnetic part, or the first electrode assembly  40  dispose an independent mechanism made of magnet or magnetic material to form the first magnetic part; correspondingly, the second seat body  51  also may be directly made of conductive magnet or magnetic material to form the second magnetic part, or the second electrode assembly  50  dispose an independent mechanism made of magnet or magnetic material to form the second magnetic part. 
         [0056]    As another alternative embodiment, the first magnetic part and the second magnetic part also may be disposed at another abutting position between the e-liquid cup  11  and the battery rod  21 , that is, the end cover  114  is made of magnet or magnetic material to form the first magnetic part, or the end cover  114  dispose an independent mechanism made of magnet or magnetic material to form the first magnetic part; correspondingly, he battery cover  22  is made of magnet or magnetic material to form the second magnetic part, or the battery cover  22  dispose an independent mechanism thereon made of magnet or magnetic material to form the second magnetic part. 
         [0057]    Certainly, the e-liquid cup  11  and the battery rod  21  also may be disposed as clamping, insertion and other freely detachable connection ways. 
         [0058]    When assembling the electronic cigarette, inserting the battery rod  21  into the cavity body  116 , and fix the battery  21  in the cavity body  116  by the mutual matched connection mechanism respectively disposed on the first seat body  41  and the second seat body  51 , making the first electrode assembly  40  and the second electrode assembly  50  being securely abutted, then achieve the electrically connection between the atomizer  12  and the battery  20 . 
         [0059]    Referring to  FIG. 4  and  FIG. 7 , in the embodiment, the supporting piece  13  abuts on the first seat body  41 . One end of the first seat body  41  abutting with the supporting piece  13  extends toward an internal of the supporting piece  13  to form a pillar. The supporting piece  13  is tensioningly sheathed on the pillar. The other end of the supporting piece  13  disposes a sealing sleeve  14 . One end of the sealing sleeve  14  tightly abuts against the liquid-guiding rod  122 , and the other end of the sealing sleeve  14  extends toward the internal of the mouthpiece  30  to form a convex column. One end of the mouthpiece  30  is sheathed on the convex column and abuts tightly to the sealing sleeve  14 , achieving the sealing connection of the internal of the e-liquid cup  11  by the sealing sleeve  14 , and then prevents the e-liquid in the e-liquid cup  11  leaking out from the air-inhalation hole  31 . A central of the sealing sleeve  14  correspondingly disposes a conducting hole communicating with the atomization chamber and the air-inhalation hole  31  to conduct the air path. 
         [0060]    When assembly, inserting the fixed boss  32  of the mouthpiece  30  into the fixed groove  114  of the e-liquid cup  11 , using the connection mechanism disposed at the abutting position between the mouthpiece  30  and the e-liquid cup  11  to achieve matching abutting of the mouthpiece  30  and the e-liquid cup  11 , until the corresponding end of the mouthpiece  30  and the sealing sleeve  14  being abutted tightly, then sealing the e-liquid storage space  111 . When needing to add e-liquid, the mouthpiece  30  is removed, it is possible to add e-liquid into the e-liquid storage space  111  through the liquid filling port  115  of the open end of the e-liquid cup  11 . 
         [0061]    Meanwhile, in order to facilitate observing the balance of the e-liquid in the e-liquid storage space  111 , and to add e-liquid timely to guarantee the proper use of the electronic cigarette, in the embodiment, part or all of the outer cup body  112  is disposed as transparent or semitransparent. 
         [0062]    Referring to  FIG. 2  and  FIG. 5 , the battery rod  21  further disposes an atomization control unit. The atomization control unit is electrically connected with the battery  20  and the atomizer  12  respectively to control the power on or power off of the atomizer  12 . The atomization control unit may be disposed between the atomizer  12  and the battery  20 , or disposed at one end of the battery  20  away from the atomizer  12 . 
         [0063]    In the embodiment, the atomization control unit is preferably disposed at one end of the battery  20  away from the atomizer  12 , and includes an atomization control circuit and an atomization control switch which is connected with the atomization control circuit. 
         [0064]    In the embodiment, the atomization control switch is a sensor switch  61 . The sensor switch  61  is fixed in the battery rod  21  by a switch fixing seat  62 . Specifically, the sensor switch  61  is a capacitive sensor switch. When users use the electronic cigarette smoking, the capacitive sensor switch sensors the change of capacity after inhaling airflow, then controls the atomization control circuit to conduct power supply, making the electronic cigarette entering into working state. As an alternative embodiment, the sensor switch  61  also may be disposed as airflow sensor switch, that is, when users inhaling by the mouthpiece  30 , in the electronic cigarette generate negative pressure, then make the airflow sensor switch generating pulse signal to control the atomization control circuit to conduct the power supply. 
         [0065]    Because a manufacturing of the sensor switch  61  is very precisely, and the sensor switch  61  usually disposes a special controller inside, so that in the embodiment the atomization control circuit may be directly integrated on the controller in the sensor switch  61 . As an alternative embodiment, the atomization control circuit also may be integrated on a sensor control circuit board which is independently disposed at an external of the sensor switch  61  and electrically connected with the sensor switch  61  and the battery  20  respectively. 
         [0066]    As an alternative embodiment, the atomization control switch also may be disposed as a traditional key control. The key switch electrically connects with the battery  20  by a key control circuit board to control the atomization control circuit by key operation, and then achieves the power on or power off of circuit of the atomizer  12 . 
         [0067]    Continue referring to  FIG. 2  and  FIG. 5 , one end of the battery rod  21  near the battery cover  22  further disposes a lighting-emitting device. The lighting-emitting device is used as a working indicating light of the electronic cigarette, and includes a light-emitting unit which is electrically connected with the battery  20 . In the embodiment, the light-emitting unit is set as a red emitting light, then when users sucking the electronic cigarette, at one end of the electronic cigarette away from the mouthpiece  30  form a red light aperture similar to that when a real cigarette burning, which improves the reality of visual sense for users. The end part of the battery cover  22  disposes a transparent or semitransparent light cap  23  for the light-emitting unit to project out light. As an alternative embodiment, the whole battery cover  22  also may be set as transparent or semitransparent. 
         [0068]    It is understood that, the electronic cigarette of the embodiment of the present invention is not limit to the embodiments shown in  FIG. 1  to  FIG. 8 , therein various technical features from embodiments may be combined to form new embodiments. 
         [0069]    Embodiments of the present invention is shown and described in the above-mentioned. Various improvement and modifications can be made to the embodiments by those skilled in the art without departing from the true spirit and scope of the disclosure. The scope of the present invention is defined by the appended claims and equivalents thereof.