Patent Publication Number: US-2022218037-A1

Title: Atomizer and electronic atomizing device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation-application of International (PCT) Patent Application No. PCT/CN2019/110657 filed Oct. 11, 2019, which claims priority and rights of Chinese Patent Application No. 201910944487.1, filed on Sep. 30, 2019, in the National Intellectual Property Administration of China, the entire contents of which are hereby incorporated by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     The disclosure relates to an atomizing device, in particular to an atomizer and an electronic atomizing device. 
     BACKGROUND 
     Electronic cigarettes are also known as virtual cigarettes and electronic atomizing devices. As an alternative to cigarettes, the electronic cigarettes are mostly used to quit smoking. The electronic cigarettes have a similar appearance and taste to cigarettes, but generally do not contain harmful components such as tar and suspended particles, and so on, in cigarettes. 
     In the related art, for an electronic atomizing device, a suction liquid leakage is easily to occur as a result of incompletely atomized e-liquid during being heated and a condensate appearing due to a condensation during use, which may greatly affect safety of the electronic cigarettes and user experience. 
     SUMMARY OF THE DISCLOSURE 
     The technical problem to be solved by the present disclosure is: in the related art, during a suction process, some condensed liquid drops or liquid surface may be generated on a side wall of an airflow channel as a suction time increases, and the generated liquid drops are easily to be brought out in response to a subsequent suction, thereby user experience may be affected. Therefore, an atomizer and an electronic atomizing device are provided. 
     The technical solutions adopted by the present disclosure to solve its technical problems are to provide an atomizer, and the atomizer includes an atomizing member; and an airflow channel, including an air outlet channel A first liquid suction structure and a second liquid suction structure having a fluid connection with the first liquid suction structure are defined on the air outlet channel The first liquid suction structure and the second liquid suction structure are configured to absorb a condensate formed on the air outlet channel by capillary forces. The second liquid suction structure is located between the atomizing member and the first liquid suction structure, and the capillary force of the second liquid suction structure is greater than that of the first liquid suction structure. A liquid storage groove that absorbs and stores the condensate by the capillary force is defined on the second liquid suction structure. The condensate in the first liquid suction structure reaches the second liquid suction structure by the capillary force of the liquid storage groove and is then absorbed and stored. 
     In some embodiments, the second liquid suction structure has an inner wall, the inner wall is concaves to form the liquid storage groove, and the inner wall of the second liquid suction structure encloses a part of the air outlet channel 
     In some embodiments, the first liquid suction structure is a liquid suction groove extending along a longitudinal direction of an inner wall of the air outlet channel, and one end of the liquid suction groove is butted with the liquid storage groove. 
     In some embodiments, the number of the liquid suction groove is several, and the liquid suction grooves are evenly distributed along a peripheral wall of the air outlet channel. 
     In some embodiments, the air outlet channel includes a first airway wall and a second airway wall detachable with the first airway wall, the first liquid suction structure is defined on the first airway wall, and the second airway wall is an inner wall of the first liquid suction structure. 
     In some embodiments, the second liquid suction structure is defined on an integrally formed single element. 
     In some embodiments, the atomizing member includes a cylindrical atomizing core and a liquid guiding cotton surrounding the atomizing core. The liquid guiding cotton is in the fluid connection to the liquid storage groove of the second liquid guiding structure for guiding liquid. 
     In some embodiments, a bottom of the second liquid suction structure abuts the liquid guiding cotton, and a liquid returning structure is arranged on the bottom of the second liquid suction structure to make the liquid storage groove be in the fluid connection to the liquid guiding cotton for guiding liquid. 
     In some embodiments, the liquid returning structure is a liquid returning groove or a liquid outlet or a stepped structure. 
     In some embodiments, the liquid storage groove is a horizontal liquid storage groove or a longitudinal liquid storage groove or a threaded liquid storage groove. 
     In some embodiments, the second liquid suction structure includes at least one liquid guiding groove fluidly coupled to a part of the liquid storage groove and used to dispense a condensate. 
     In some embodiments, a groove depth of the liquid suction groove is configured to be gradually increased toward the liquid storage groove; and/or a groove width of the liquid suction groove is configured to be gradually increased toward the liquid storage groove; and/or the groove width of the liquid suction groove is configured to be gradually increased from a bottom of the liquid suction groove to an opening of the liquid suction groove. 
     According a second aspect, an electronic atomizing device is provided and includes an atomizing member; and an airflow channel including an air outlet channel A first liquid suction structure and a second liquid suction structure having a fluid connection with the first liquid suction structure are defined on the air outlet channel The first liquid suction structure and the second liquid suction structure are configured to absorb a condensate formed on the air outlet channel by capillary forces. The second liquid suction structure is located between the atomizing member and the first liquid suction structure, and the capillary force of the second liquid suction structure being greater than that of the first liquid suction structure. A liquid storage groove that absorbs and stores the condensate by the capillary force is defined on the second liquid suction structure. The condensate in the first liquid suction structure reaches the second liquid suction structure by the capillary force of the liquid storage groove and is then absorbed and stored. 
     In some embodiments, the first liquid suction structure is a liquid suction groove extending along a longitudinal direction of an inner wall of the air outlet channel, and one end of the liquid suction groove is butted with the liquid storage groove. 
     In some embodiments, the air outlet channel includes a first airway wall and a second airway wall detachable with the first airway wall, the first liquid suction structure is defined on the first airway wall, and the second airway wall is an inner wall of the first liquid suction structure. 
     In some embodiments, the atomizing member includes a cylindrical atomizing core; and a liquid guiding cotton surrounding the atomizing core; and the liquid guiding cotton is in the fluid connection to the liquid storage groove of the second liquid guiding structure for guiding liquid. 
     In some embodiments, a bottom of the second liquid suction structure abuts the liquid guiding cotton, and a liquid returning structure is arranged on the bottom of the second liquid suction structure to make the liquid storage groove be in the fluid connection to the liquid guiding cotton for guiding liquid. 
     In some embodiments, the liquid returning structure is a liquid returning groove or a liquid outlet or a stepped structure. 
     In some embodiments, the second liquid suction structure includes at least one liquid guiding groove fluidly coupled to a part of the liquid storage groove and used to dispense a condensate. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure will be further described in the following in conjunction with the accompanying drawings and embodiments. 
         FIG. 1  is a perspective structural schematic view of an electronic atomizing device according to some embodiments of the present disclosure. 
         FIG. 2  is a perspective structural schematic view of an atomizer of the electronic atomizing device shown in  FIG. 1 . 
         FIG. 3  is a partial exploded schematic view of the atomizer shown in  FIG. 2 . 
         FIG. 4  is a cross-sectional view of the atomizer shown in  FIG. 2 . 
         FIG. 5  is a partial enlarged schematic diagram of the atomizer shown in  FIG. 4 . 
         FIG. 6  is a perspective structural schematic view of a housing of the atomizer shown in  FIG. 4 . 
         FIG. 7  is a perspective structural schematic view of the housing of the atomizer shown in  FIG. 4  from another viewpoint. 
         FIG. 8  is a perspective structural schematic view of a base of the atomizer shown in  FIG. 4 . 
         FIG. 9  is a first structural schematic view of an atomizer of the present disclosure. 
         FIG. 10  is a second structural schematic view of the atomizer of the present disclosure. 
         FIG. 11  is a cross-sectional structural schematic view of the atomizer of the present disclosure. 
         FIG. 12  is a structural schematic diagram of an atomizing member, a sleeve, a suction structure, and a seal element of the present disclosure. 
         FIG. 13  is a first structural schematic view of an air outlet tube of the present disclosure. 
         FIG. 14  is a second structural schematic view of the air outlet tube of the present disclosure. 
         FIG. 15  is a structural schematic diagram of the atomizing member, the sleeve, a horizontal liquid storage groove, and the seal element of the present disclosure. 
         FIG. 16  is a first structural schematic diagram of a longitudinal liquid storage groove of the present disclosure. 
         FIG. 17  is a second structural schematic diagram of the longitudinal liquid storage groove of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     In order to make the technical features, objectives and effects of the present disclosure be understood more clearly, the specific embodiments of the present disclosure will be described in detail with reference to the accompanying drawings in the following. 
     Limitation of orientation: an upper, a lower, a top, a bottom of the present disclosure are an upper, a lower, a top, a bottom shown in the accompanying drawings. It should be understood that an orientation or positional relationship indicated by “upper”, “lower”, etc. is based on the orientation or positional relationship shown in the drawings. Constructing and operating in a specific orientation is only for a convenience of describing the technical solution, not indicating that the related device or elements must have a specific orientation, and should not be understood as a limitation of the present disclosure. 
     A first embodiment of an electronic atomizing device of the present disclosure is shown in  FIG. 1  to  FIG. 4 . The electronic atomizing device is applied to atomize a liquid medium such as an e-liquid, a medicine, and so on. The electronic atomizing device includes an atomizer and a power supply device mechanically and electrically connected to the atomizer. The atomizer is used to heat and atomize the liquid medium, and the power supply device is used to power the atomizer. In some embodiments, the atomizer and the power supply device are detachably connected. The power supply device includes a power supply housing, a battery disposed in the power supply housing, conductive contacts disposed in the power supply housing and connected to the battery and the atomizer, and a control circuit disposed in the power supply housing and electrically connected to the battery and the atomizer. 
     As shown in  FIG. 3  to  FIG. 7 , in the present embodiment, the atomizer includes a housing  10 , a base  20 , an atomizing member  30 , a first seal element  40 , a gas-liquid balance element  50 , and liquid guiding elements  60 . The housing  10  is sleeved on a periphery of the atomizing member  30 , and a liquid storage cavity  111  is defined in an inner side of the housing  10  used for accommodating the liquid medium. In the present embodiment, the liquid medium is e-liquid. The base  20  is used to be arranged with the atomizing member  30 , and the housing  10  is sleeved on the base  20 . The atomizing member  30  is arranged in the housing  10  and located on the base  20 . The first seal element  40  is arranged on the base  20  configured for sealing a connection between the atomizing member  30  and the base  20 . The gas-liquid balance element  50  is arranged in the housing  10  and located on a lower part of the liquid storage cavity  111 , being sleeved on the periphery of the atomizing member  30  and located on the base  20 . The liquid storage cavity  111  is in a fluid connection to an outside by the gas-liquid balance element  50 , such that an air pressure in the liquid storage cavity  111  may be balanced. The liquid guiding elements  60  may be two. It can be understood that, in other embodiments, the liquid guiding element  60  may be one, or the liquid guiding elements  60  may be more. The liquid guiding elements  60  are penetrated through the gas-liquid balance  50 , and configured to fluidly connect the liquid storage cavity  111  with the atomizing member  30 , so as to provide the liquid medium to the atomizing member  30 . It is understandable that, in other embodiments, both the gas-liquid balance element  50  and the liquid guiding elements  60  may be omitted. 
     Furthermore, in the present embodiment, the housing  10  includes a housing body  11  and an air outlet tube  12 , and the housing body  11  and the air outlet tube  12  are integrally formed by an injection molding process. Understandably, in other embodiments, the air outlet tube  12  and the housing body  11  are two separate structures. The housing body  11  is sleeved on the base  20  and the atomizing member  30 , a space is defined in the housing body  11  and above the atomizing member  30 , and the liquid storage cavity  111  is defined in the space. The housing body  11  has a central axis, the air outlet tube  12  is arranged in the housing body  11  substantially along the central axis, and be in the fluid connection to the atomizing member  30 , and located at the central axis of the housing body  11 . It can be understood that, in other embodiments, the air outlet tube  12  may be arranged in a side of the housing body  11  and is not limited to be at the central axis of the housing body  11 . The air outlet tube  12  may also be arranged obliquely. An air outlet channel  121  is defined in the air outlet tube  12 , arranged along a direction of an axis of the air outlet tube  12 , and a side wall of the air outlet channel  121  is integrally formed with the housing  10 . An atomized gas generated in response to a user inhaling may enter a mouth of the user passing through the air outlet channel  121 . The air outlet channel  121  has a first end  1211  and a second end  1212 , the second end  1212  is inserted into the atomizing member  30 , and the first end  1211  is defined with a cigarette holder for the user to inhale the atomized gas. At least one first liquid suction groove  122  is defined on an inner side wall of the air outlet tube  12 . In the present embodiment, the at least one first liquid suction groove  122  may be multiple. It can be understood that in other embodiments, the at least one first liquid suction groove  122  may be one. The first liquid suction groove  122  has a capillary function of absorbing a condensate formed on the side wall of the air outlet channel  121 . The condensate will flow to the atomizing member  30  from the first liquid suction groove  122  under a gravity action of the condensate, and is atomized again by the atomizing member  30 . In this way, a utilization rate of the liquid medium may be improved. 
     Further, in the present embodiment, the multiple first liquid suction grooves  122  are defined on the inner side of the air outlet tube  12 , and arranged along a circumferential direction of the air outlet channel  121  at intervals. In response to the atomized gas reaching an air outlet through the air outlet channel  121 , a gas flow around the air outlet channel  121  will be condensed to the condensate as a result of being contacted with the inner side of the air outlet tube  12 , in which case, the condensate will be sucked into the first liquid suction grooves  122  by a capillary action. In the present embodiment, the first liquid suction grooves  122  are arranged along a longitudinal direction of the air outlet channel  121  extending from the second end  1212  of the air outlet channel  121  toward the first end  1211  of the air outlet channel  121 , are substantially parallel to a central axis of the air outlet channel  121 . Besides, the first liquid suction grooves  122  have a fluid connection with the atomizing member  30 , such that the condensate may flow to a top of the atomizing member  30  along an extending direction of the first liquid suction groove  122  under the gravity action of the condensate, and be dropped on the atomizing member  30  to be atomized again. In this way, a utilization rate of the liquid medium may be improved, and a possibility of the liquid medium being sucked into the user&#39;s mouth may be reduced, and thus user experience may be improved. In the present embodiment, the first liquid suction grooves  122  are not limited to be arranged longitudinally, and may be arranged spirally or obliquely. 
     In the present embodiment, an outlet  1221  is defined on a surface of the first end  1211  of the air outlet channel  121 . The outlet  1221  is in the fluid connection with the first liquid suction grooves  122 , and in the fluid connection to the atomizing member  30 . It may be convenient for a liquid in the first liquid suction grooves  122  to be dropped on the atomizing member  30  through the outlet  1221 . 
     In the present embodiment, groove depths of the first liquid suction grooves  122  are set to be gradually reduced in a direction away from the outlet  1221 . Bottom surfaces of the first liquid suction grooves  122  are slopes inclined toward a direction of the outlet  1221 , such that less liquid is stored in an upper part of the first liquid suction grooves  122 , while more liquid is stored in a lower part of the first liquid suction grooves  122 . In this way, a possibility that the liquid in the upper part of the first liquid suction grooves  122  is sucked into the use&#39;s mouth may be further reduced. Through the bottom surfaces of the first liquid suction grooves  122  being arranged to be the slopes inclined toward the direction of the outlet  1221 , a resistance that the liquid in the lower part of the first liquid suction grooves  122  are sucked out may be increased which may further reduce an occurrence of the liquid being sucked into the user&#39;s mouth. Specifically, in the present embodiment, each of the groove depths of the first liquid suction grooves  122  may be greater than or equal to 0.1 mm. In the present embodiment, groove widths of the first liquid suction grooves  122  are set to be gradually increased along an opening direction of the first liquid suction grooves  122 . The opening direction of the first liquid suction grooves  122  is substantially perpendicular to and directed to the central axis of the air outlet channel  121 . In this way, the first liquid suction grooves  122  may have characteristics of narrow inside and wide opening. In this way, it may facilitate the liquid to flow to the atomizing member  30  along the first liquid suction grooves  122 . In the present embodiment, the width of each of the first liquid suction grooves  122  may be 0.05-1 mm. 
     In  FIG. 4  to  FIG. 8 , in the present embodiment, the housing  10  further includes a housing opening. The base  20  further includes a seat body  21 , a support member  22  arranged on the seat body  21 , and a liquid storage structure  23 . A shape and size of a cross-section of the seat body  21  are adapted to a shape and size of the housing opening of the housing  10 , such that the housing opening of the housing  10  may be blocked by the seat body  21 . A groove  211  is defined on the base  20 . Specifically, the groove  211  is defined on an end of the seat body  21  facing towards an atomizing cavity  311  of the atomizing member  30 , such that the liquid storage structure  23  may be defined at a bottom of the atomizing cavity  311 . The support member  22  includes two groups of support columns arranged at intervals, and one group support columns are arranged on a side of the groove  211 , while the other group support columns are arranged on an opposite side of the groove  211 . The support columns are used to support an atomizing member  32  in the atomizing member  30 . The liquid storage structure  23  is defined in the groove  211 , and in the fluid connection to the atomizing cavity  311  of the atomizing member  30 . The liquid storage structure  23  is used to store the liquid medium to reduce a possibility of the liquid medium leaking out. 
     Further, in the present embodiment, the liquid storage structure  23  includes a plurality of second liquid suction grooves  231 , a liquid dispensing groove  232 , and a plurality of flow guiding grooves  233 . The plurality of second liquid suction grooves  231  are defined side by side on the bottom of the groove  211  at intervals, facing towards the atomizing cavity  311 , and having a capillary function to absorb the liquid medium dropped from the atomizing cavity  311  or the air outlet channel  121 . The number of the second liquid suction grooves  231  is not limited to be multiple, and may be one. The liquid dispensing groove  232  is defined on a bottom surface of the groove  211 , intersected with the plurality of second liquid suction grooves  231 . The liquid dispensing groove  232  further crosscuts the second liquid suction grooves  231 , and is in the fluid connection to the second liquid suction grooves  231 . The liquid dispensing groove  232  is used for shunting, so as to absorb the liquid medium faster. The plurality of flow guiding grooves  233  are defined on a side wall of the groove  211  at intervals, arranged correspondingly to the second liquid suction grooves  231  and the liquid dispensing groove  232 , and in the fluid connection to the second liquid suction groove  231  and the liquid dispensing groove  232 . The flow guiding grooves  233  have a capillary function used for guiding liquid into the second liquid suction grooves  231 . 
     Further, in the present embodiment, each of the second liquid suction grooves  231  extends along a transverse direction of the bottom surface of the groove  211 . That is, each of the second liquid suction grooves  231  extends along a transverse direction of the atomizing cavity  311 , and a flowing direction of the liquid medium is controlled by the second liquid suction grooves  231 , such that a possibility of leaking liquid may be effectively reduced. In the present embodiment, the groove width of each of the second liquid suction grooves  231  is 0.05-1 mm, and the groove depth of each of the second liquid suction grooves  231  is greater than 0.1 mm. Understandably, in some other embodiments, the groove depth of each of the second liquid suction grooves  231  may be also equal to 0.1 mm. 
     Furthermore, in the present embodiment, the liquid dispensing groove  232  is substantially perpendicular to each of the second liquid suction grooves  231 , and divides each of the second liquid suction grooves  231  into two sections. A groove width of the liquid dispensing groove  232  is greater than the groove width of each of the second liquid suction grooves  231 . In this way, a liquid absorbing rate may be improved, and a possibility that the liquid medium penetrates to an outside from electrode pores may be reduced. 
     Further, in the present embodiment, the flow guiding grooves  233  are defined on the side wall of the groove  211  and extends along a longitudinal direction of the base  20 . Each of the flow guiding grooves  233  is correspondingly in the fluid connection to one second liquid suction groove  231  and the liquid dispensing groove  232 . The flow guiding grooves  233  are used to guide the liquid medium to the second liquid suction grooves  231  and the liquid dispensing groove  232 . In the present embodiment, groove openings of ends of the flow guiding grooves  233  away from the second liquid suction grooves  231  and the liquid dispensing groove  232  are defined on an outside of the atomizing cavity  311  to absorb a liquid leakage from the outside of the atomizing cavity  311 . In the present embodiment, the atomizing member  30  includes an atomizing housing  31 . A step  2111  is arranged on an inner side wall of the groove  211 , and used to be assembled with the atomizing housing  31  of the atomizing member  30  to improve a member compactness. In the present embodiment, the flow guiding grooves  233  have a capillary force used to absorb the liquid leakage and guide the liquid leakage to the second liquid suction grooves  231 . In the present embodiment, the groove width of each of the flow guiding grooves  233  may be 0.05-1 mm. It is understandable that in some other embodiments, the groove width of each of the flow guiding grooves  233  may be not limited to be 0.05-1 mm. 
     Further, in the present embodiment, the atomizing member  30  further includes an atomizing element  32 . The atomizing housing  31  is sleeved on the base  20  and inserted into the groove  211 . The atomizing housing  31  is connected with the first seal element  40 . The atomizing housing  31  is used for the atomizing element  32  to be assembled with, such that the atomizing element  32  may be fixed. The atomizing gravity  311  is defined in an inner side of the atomizing housing  31 , located on an upper part of the base  20 , and in the fluid connection to the first liquid suction grooves  122  directly. A liquid leakage tends to occur at which place the atomizing housing  31  contacts the atomizing element  32 . The liquid medium is easy to leak out from where the first seal element  40  is connected with the atomizing housing  31 . The groove openings of the ends of the flow guiding grooves  233  away from the second liquid suction grooves  231  and the liquid dispensing groove  232  face towards a connection between the first seal element  40  and the atomizing housing  31 . In some embodiments, the groove openings substantially right face towards the connection between the first seal element  40  and the atomizing housing  31 , and absorb the liquid leakage where the connection is through the capillary force. The atomizing element  32  penetrates through the atomizing housing  31  along a transverse direction. The atomizing element  32  includes an atomizing core  321  penetrating through the atomizing housing  31  and a heating body  322  entangled on the atomizing core  321 . The atomizing core  321  may be a cotton core. Both ends of the atomizing core  321  are located on the two groups of the support columns disposed on the seat body  21 . The atomizing core  321  has a fluid connection with the liquid guiding elements  60 . The atomizer further includes an electrode  90 . A conductive connection element of the heating body  322  penetrates into the base  20  and is connected to an electrode  90 . In the present embodiment, the heating body  322  may be a heating wire. 
     Further, in the present embodiment, the first seal member  40  is sleeved on the base  20 , and sleeved on a periphery of the atomizing housing  31 . Specifically, the first seal member  40  may be a sealing sleeve. The sealing sleeve may be a silicone sleeve or a rubber sleeve. Understandably, in some other embodiments, the first seal member  40  is not limited to be a silicone sleeve or a rubber sleeve. 
     Further, in the present embodiment, the gas-liquid balance element  50  is in a cylindrical shape. Specifically, a cross-section of the gas-liquid balance element  50  is elliptical or rectangular shape. An outer circumference of the gas-liquid balance element  50  is connected with an inner wall surface of the housing  10  in a manner of interference fit to block the liquid storage cavity  111 . In the present embodiment, the gas-liquid balance element  50  includes two vias  51 , a liquid-storing gas-exchanging structure  52  located on a periphery of the vias  51 , and an airflow passageway  53  located between the two vias  51 . The liquid guiding elements  60  may insert into the vias  51 . The liquid-storing gas-exchanging structure  52  is used to fluidly connect the liquid storage cavity  111  to the outside, to balance atmospheres in the liquid storage cavity  111 . The liquid-storing gas-exchanging structure  52  includes a plurality of liquid storage grooves  521  disposed side by side and two gas returning grooves. The liquid storage grooves  521  may generate a capillary force for the liquid medium, and used to store the liquid medium, such that the possibility of the liquid leakage may be reduced. The gas returning grooves are defined along a longitudinal direction, crosscut the liquid storage grooves  521 , and in the fluid connection to the liquid storage grooves  521  and the liquid storage cavity  111 . Gas may enter the liquid storage cavity  111  through the gas returning grooves. The airflow passageway  53  is in the fluid connection to the air outlet channel  121  to further facilitate the air outlet channel  121  being in the fluid connection to the atomizing cavity  311 . A temperature gas exchanging process may be performed through setting the gas-liquid balance element  50 , such that an occurrence of a frying oil and a burnt smell caused by a long-term absence of gas exchanging process (insufficient liquid supply) may be reduced, and an occurrence of large-particle droplets and the liquid leakage caused by a sudden large-scale gas exchanging process (too much liquid supply) may be also reduced. Besides, structural gaps may be sealed by forming an independent gas exchanging channel. In this way, the occurrence of the liquid leakage caused by capillary forces of the gaps and environmental changes may be reduced, and an occurrence of suction liquid leakage and the condensate being sucked out may be also reduced, such that a product yield may be improved. 
     Further, in the present embodiment, the liquid guiding elements  60  are arranged corresponding to the vias  51  of the gas-liquid balance element  50 , penetrating the vias  51 , and located at the both ends of the atomizing core  321 . The liquid guiding element  60  has a fluid connection with the atomizing core  321 . The liquid guiding element  60  may be a cotton core, and it is understood that in some other embodiments, the liquid guiding element  60  is not limited to be the cotton core. 
     Further, in the present embodiment, the atomizer further includes a fixing sleeve  70 . The fixing sleeve  70  is used to fix the conductive connection element of the heating body  322 , facilitating to position the conductive connection element of the heating body  322 . The conductive connecting element of the heating body  322  is configured to penetrate the fixing sleeve  70 . A through hole  71  that is in the fluid connection to the atomizing cavity  311 , is defined on the fixing sleeve  70 , disposed substantially along the longitudinal direction, and in the fluid connection to the air outlet channel  121  to facilitate a gas circulation. In the present embodiment, the fixing sleeve  70  may be a silicone sleeve. Understandably, in some other embodiments, the fixing sleeve  70  may be omitted. 
     Further, in the present embodiment, the atomizer further includes a second seal element  80 . The second seal element  80  may be a sealing sleeve, sleeved on the gas-liquid balance element  50 . There are yielding holes defined on the second seal element  80 , disposed corresponding to the liquid guiding element  60  and the air outlet channel  121 . The second seal element  80  may be a silicone sleeve or a rubber sleeve. 
     Further, in the present embodiment, the electrode  90  includes two electrode columns, one electrode column is a positive pole column, and the other electrode column is a negative pole. The two electrode columns are arranged on the seating body  211  side by side. A lead wire is arranged on one end of the electrode column to be connected to the conductive connection element of the heating body  322 , and the other end of the electrode column is connected to the power supply device. 
     A second embodiment of the atomizer of the present disclosure is shown in  FIGS. 9-12 . The atomizer is provided and includes a base  20 , a housing  10  sleeved on the base  20  and having a sealed connection with the base  20  to define a liquid storage cavity  111 , an electrode  90  arranged on a bottom of the base  20 , a liquid injection member  109  arranged on the base  20  used to inject liquid into the liquid storage cavity  111 , an atomizer body arranged on the base  20 , a airflow channel through the whole atomizer, and a liquid suction structure  101 . The atomizer body includes an atomizing member  30 . The airflow channel includes an air inlet channel  131 , an atomizing cavity  311 , and an air outlet channel  121 . The liquid suction structure  101  is disposed in the air outlet channel  121 , a plurality of liquid storage grooves  105  are defined on the liquid suction structure  101  along a circumferential direction. The liquid storage grooves  105  may suck out a condensate in the air outlet channel  121  and/or an incompletely atomized e-liquid brought out during a smoking process. In the present embodiment, the liquid suction structure  101  may be made of one or more of PETG, PCTG and PC. 
     Specifically, the liquid suction structure  101  includes a plurality of fins  104 , the fins  104  are arranged at intervals in parallel along the longitudinal direction. A liquid storage groove  105  is defined between each two adjacent fins  104 , a width of the liquid storage groove  105  is configured to be sufficiently small so as to generate a capillary force on the condensate. In this way, liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves  105  in response to passing through a structure of the fins  104 , and further to form a liquid film in the liquid storage grooves  105  so as to be stored in the liquid storage grooves  105 , and a possibility of liquid leakage may be reduced. 
     The atomizing member  30  includes a cylindrical atomizing core  321 , a liquid guiding cotton  323  surrounding the atomizing core  321 , and a heating body  322  entangled on the atomizing core  321 . A conductive connection element of the heating body  322  penetrates into the base  20  and is connected to an electrode  90 . In some embodiments, the heating body  322  may be a heating wire. During the atomizer being used, the atomizing core  321  absorbs the e-liquid in the liquid storage cavity  111 , and the heating body  322  is energized to generate heat, such that the e-liquid in the atomizing core  321  is atomized In response to the user inhales through a suction port of a top cover of the atomizer, the air enters the atomizing core  321  from an air inlet channel  131  under a suction force, mixed with an atomized e-liquid in the atomizing core  321 , and discharged from the suction port of the top cover of the atomizer after passing through the air outlet channel  121 . 
     In the present embodiment, the liquid suction structure  101  includes a plurality of fins  104 , the fins  104  are arranged at intervals along the longitudinal direction in parallel or non-parallel. A liquid storage groove  105  is defined between each two adjacent fins  104 , a width of the liquid storage groove  105  is sufficiently small such that a capillary force on the condensate may be generated. In this way, liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves  105  in response to passing through a structure of the fins  104 , and further to form a liquid film in the liquid storage grooves  105  so as to be stored in the liquid storage grooves  105 , and a possibility of liquid leakage may be reduced. Both a thickness of the fin  104  and a width of the liquid storage groove  105  are 0.1-0.5 mm, and 0.15-0.3 mm is preferred. 
     In order to reduce the possibility that the e-liquid is brought out as the suction process in response to excessive e-liquid accumulated in the liquid storage groove  105 , in the present embodiment, the liquid suction structure  101  includes at least one liquid returning groove  106  extending along the longitudinal direction. At least part of the liquid storage grooves  105  are slit by the at least one liquid returning groove  106 . The e-liquid may return to the atomizing core  321  to be atomized again along the liquid returning groove  106 , in response to excessive e-liquid accumulated in the liquid storage groove  105 . Specifically, two liquid returning grooves  106  at the same diameter are defined on an inner wall of the liquid suction structure  101 . The fins  104  are slit by the liquid returning grooves  106  from a next fin  104  of a top fin  104  of the liquid suction structure  101  to a bottom fin  104 . The top fin  104  of the liquid suction structure  101  is used to block a condensate in the liquid returning groove  106  to flow to the air outlet channel  121 . 
     Further, in  FIG. 12 , in order to make a returning e-liquid better absorbed and re-atomized by the atomizing core  321 , a length of the bottom fin  104  of the liquid suction structure  101  extending to a central axis of the liquid suction structure  101  is less than a length of an adjacent fin  104  of the bottom fin  104  extending to the central axis of the liquid suction structure  101 . 
     In some embodiments, the air outlet channel  121  are arranged adjacently to the atomizing member  30  up and down, the liquid suction structure  101  and the air outlet channel  121  are one integral structure, and the liquid storage grooves  105  are defined on the inner wall surface of the air outlet channel  121 . In the present embodiment, in  FIG. 12 , the liquid suction structure  101  and the air outlet channel  121  are two separate structures, and the liquid suction structure  101  includes a cylindrical body disposed directly above the atomizing member  30 . The housing  10  includes a housing body and an air outlet tube  12  longitudinally disposed in an inter cavity of the housing body. A complete airflow channel is defined by the air inlet channel  131 , the atomizing cavity  311 , and the inner cavity of the liquid suction structure  101 , and the air outlet tube  12 . 
     The reason that the liquid suction structure  101  is arranged directly above the atomizing core  321  and adjacent to the atomizing core  321  is: in response to an electronic cigarette being heated, there is an oil film generated due to an atomization process, incompletely atomized e-liquid is easily brought out by bubbles generated during the atomization process, and the liquid suction structure  101  arranged directly above the atomizing core  321  may absorb the liquid drops carried by the smoke and store the liquid drops to the liquid storage grooves  105  in response to the smoke rising, such that a possibility of suction liquid leakage may be greatly reduced. 
     In  FIG. 12 , the plurality of fins  104  are arranged on an inner wall surface of the cylindrical body. The cylindrical body includes a first part  102  and a second part (not shown) detachably enclosed with the first part  102 . A plurality of first fins are arranged on an inner wall surface of the first part  102 , and a plurality of second fins are arranged on an inner wall surface of the second part. Specifically, the liquid suction structure is cylindrical, may be formed by combining two semi-cylindricals, and the fins are fan-shaped. 
     The atomizing member  30  and the liquid suction structure  101  may also be arranged in the same sleeve  107 , the liquid suction structure  101  are arranged adjacently to the atomizing member  30 . At least one liquid inlet  110  is defined on where the atomizing member  30  corresponds to the sleeve  107 . The at least one liquid inlet  110  is used to make the e-liquid stored in the liquid storage cavity  111  enter into the atomizing core  321 . 
     In addition, in order to fix the atomizing member  30  and the liquid suction structure  101  and have a more convenient installation, an outer side wall of the liquid suction structure  101  is closely contacted the inner side wall of the sleeve  107 . In some embodiments, the liquid suction structure  101  and the sleeve  107  may be one integral structure. 
     In order to seal a connection between the sleeve  107  and the air outlet channel  121 , a sealing element  108  hermetically connected with the air outlet channel  121  is arranged on the sleeve  107  corresponding to a top of the liquid suction structure  101 , and the seal element may be a silicone sleeve or a rubber sleeve. Understandably, in some other embodiments, it is not limited to be the silicone sleeve or the rubber sleeve. 
     In a second disclosure as shown in  FIG. 9 - FIG. 12 , an electronic atomizing device is also provided and includes a base  20 , a housing  10  sleeved on the base  20  and having a sealed connection with the base  20  to define a liquid storage cavity  111 , an electrode  90  arranged on a bottom of the base  20 , a liquid injection member  109  arranged on the base  20  used to inject liquid into the liquid storage cavity  111 , an atomizer body arranged on the base  20 , a airflow channel through the whole atomizer, and a liquid suction structure  101 . The atomizer body includes an atomizing member  30 . The airflow channel includes an air inlet channel  131 , an atomizing cavity  311 , and an air outlet channel  121 . The liquid suction structure  101  is disposed in the air outlet channel  121 , a plurality of liquid storage grooves  105  are defined on the liquid suction structure  101  along a circumferential direction. The liquid storage grooves  105  may suck out a condensate in the air outlet channel  121  and/or an incompletely atomized e-liquid brought out during a smoking process. In the present embodiments, the liquid suction structure  101  may be made of one or more of PETG, PCTG and PC. The electronic atomizing device may be a disposable atomizing device with the base, the housing and the atomizer body in an integrated structure, and may also be an atomizing device with the base, the housing and the atomizer body in separate structures. 
     Specifically, the liquid suction structure  101  includes a plurality of fins  104 , the fins  104  are arranged at intervals in parallel along the longitudinal direction. A liquid storage groove  105  is defined between each two adjacent fins  104 , a width of the liquid storage groove  105  is sufficiently small such that a capillary force on the condensate may be generated. In this way, liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves  105  in response to passing through a structure of the fins  104 , and further to form a liquid film in the liquid storage grooves  105  so as to be stored in the liquid storage grooves  105 , and a possibility of liquid leakage may be reduced. 
     The atomizing member  30  includes a cylindrical atomizing core  321 , a liquid guiding cotton  323  surrounding the atomizing core  321 , and a heating body  322  entangled on the atomizing core  321 . A conductive connection element of the heating body  322  penetrates into the base  20  and is connected to an electrode  90 . In some embodiments, the heating body  322  may be a heating wire. During the atomizer being used, the atomizing core  321  absorbs the e-liquid in the liquid storage cavity  111 , and the heating body  322  is energized to generate heat, such that the e-liquid in the atomizing core  321  is atomized In response to the user inhales through a suction port of a top cover of the atomizer, the air enters the atomizing core  321  from an air inlet channel  131  under a suction force, mixed with an atomized e-liquid in the atomizing core  321 , and discharged from the suction port of the top cover of the atomizer after passing through the air outlet channel  121 . 
     In the present embodiment, the liquid suction structure  101  includes a plurality of fins  104 , the fins  104  are arranged at intervals along the longitudinal direction in parallel or non-parallel. A liquid storage groove  105  is defined between each two adjacent fins  104 , a width of the liquid storage groove  105  is sufficiently small such that a capillary force on the condensate may be generated. In this way, liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves  105  in response to passing through a structure of the fins  104 , and further to form a liquid film in the liquid storage grooves  105  so as to be stored in the liquid storage grooves  105 , and a possibility of liquid leakage may be reduced. Both a thickness of the fin  104  and a width of the liquid storage groove  105  are 0.1-0.5 mm, and 0.15-0.3 mm is preferred. 
     In order to reduce the possibility that the e-liquid is brought out as the suction process in response to excessive e-liquid accumulated in the liquid storage groove  105 , in the present embodiment, the liquid suction structure  101  includes at least one liquid returning groove  106  extending along the longitudinal direction. At least part of the liquid storage grooves  105  are slit by the at least one liquid returning groove  106 . The e-liquid may return to the atomizing core  321  to be atomized again along the liquid returning groove  106 , in response to excessive e-liquid accumulated in the liquid storage groove  105 . Specifically, two liquid returning grooves  106  at the same diameter are defined on an inner wall of the liquid suction structure  101 . The fins  104  are slit by the liquid returning grooves  106  from a next fin  104  of a top fin  104  of the liquid suction structure  101  to a bottom fin  104 . The top fin  104  of the liquid suction structure  101  is used to block a condensate in the liquid returning groove  106  to flow to the air outlet channel  121 . 
     Further, in  FIG. 12 , in order to make a returning e-liquid better absorbed and re-atomized by the atomizing core  321 , a length of the bottom fin  104  of the liquid suction structure  101  extending to a central axis of the liquid suction structure  101  is less than a length of an adjacent fin  104  of the bottom fin  104  extending to the central axis of the liquid suction structure  101 . 
     In some embodiments, the air outlet channel  121  are arranged adjacently to the atomizing member  30  up and down, the liquid suction structure  101  and the air outlet channel  121  being one integral structure, and the liquid storage groove  105  is defined on the inner wall surface of the air outlet channel  121 . In the present embodiment, in  FIG. 12 , the liquid suction structure  101  and the air outlet channel  121  are two separate structures, and the liquid suction structure  101  includes a cylindrical body disposed directly above the atomizing member  30 . The housing  10  includes a housing body and an air outlet tube  12  longitudinally disposed in an inter cavity of the housing body. A complete airflow channel is defined by the air inlet channel  131 , the atomizing cavity  311 , and the inner cavity of the liquid suction structure  101 , and the air outlet tube  12 . 
     The reason that the liquid suction structure  101  is arranged directly above the atomizing core  321  and adjacent to the atomizing core  321  is: in response to an electronic cigarette being heated, there is an oil film generated due to an atomization process, incompletely atomized e-liquid is easily brought out by bubbles generated during the atomization process, and the liquid suction structure  101  arranged directly above the atomizing core  321  may absorb the liquid drops carried by the smoke and store the liquid drops to the liquid storage grooves  105  in response to the smoke rising, such that a possibility of suction liquid leakage may be greatly reduced. 
     In  FIG. 12 , the plurality of fins  104  are arranged on an inner wall surface of the cylindrical body. The cylindrical body includes a first part  102  and a second part (not shown) detachably enclosed with the first part  102 . A plurality of first fins are arranged on an inner wall surface of the first part  102 , and a plurality of second fins are arranged on an inner wall surface of the second part. Specifically, the liquid suction structure is cylindrical, may be formed by combining two semi-cylindricals, and the fins are fan-shaped. 
     The atomizing member  30  and the liquid suction structure  101  may also be arranged in the same sleeve  107 , the liquid suction structure  101  are arranged adjacently to the atomizing member  30 . At least one liquid inlet  110  is defined on where the atomizing member  30  corresponds to the sleeve  107 . The at least one liquid inlet  110  is used to make the e-liquid stored in the liquid storage cavity  111  enter into the atomizing core  321 . 
     In addition, in order to fix the atomizing member  30  and the liquid suction structure  101  and have a more convenient installation, an outer side wall of the liquid suction structure  101  is closely contacted the inner side wall of the sleeve  107 . In some embodiments, the liquid suction structure  101  and the sleeve  107  may be one integral structure. 
     In order to seal a connection between the sleeve  107  and the air outlet channel  121 , a sealing element  108  hermetically connected with the air outlet channel  121  is arranged on the sleeve  107  corresponding to a top of the liquid suction structure  101 , and the seal member may be a silicone sleeve or a rubber sleeve. Understandably, in some other embodiments, it is not limited to be the silicone sleeve or the rubber sleeve. 
     By implementing the second embodiment, the following beneficial effects can be obtained. 
     In the present disclosure, a liquid suction structure is arranged in the air outlet channel, a plurality of liquid storage grooves are defined on the liquid suction structure along a circumferential direction. The liquid storage grooves absorb a condensate out the air outlet channel by the capillary force, such that the condensate and/or the incompletely atomized e-liquid may be remained in the liquid storage grooves, further form a liquid film, and be stored in the liquid storage grooves. In this way, the occurrence of a liquid leakage during a suction process of the user may be reduced, and the user experience may be improved. 
     Moreover, the liquid suction structure includes a plurality of fins, the fins are arranged at intervals in parallel along the longitudinal direction, and the liquid storage groove is defined between each two adjacent fins. Liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves in response to passing through a structure of the fins. 
     In order to reduce the possibility that the e-liquid is brought out as the suction process in response to excessive e-liquid accumulated in the liquid storage groove, the liquid suction structure of the present disclosure includes at least one liquid returning groove extending along the longitudinal direction. At least part of the liquid storage grooves are slit by the at least one liquid returning groove. The e-liquid may return to the atomizing core to be atomized again along the liquid returning groove, in response to excessive e-liquid accumulated in the liquid storage groove. 
     In order to make a returning e-liquid better absorbed and re-atomized by the atomizing core, a length of the bottom fin of the liquid suction structure extending to a central axis of the liquid suction structure is less than a length of an adjacent fin of the bottom fin extending to the central axis of the liquid suction structure. 
     In addition, in response to an electronic cigarette being heated, there is an oil film generated due to an atomization process, incompletely atomized e-liquid is easily brought out by bubbles generated during the atomization process, and the liquid suction structure arranged directly above the atomizing core may absorb the liquid drops carried by the smoke and store the liquid drops to the liquid storage grooves in response to the smoke rising, such that a possibility of suction liquid leakage may be greatly reduced. 
     A third embodiment is shown in  FIGS. 9, 10, 11, 13-17 . In  FIGS. 9, 10 and 11 , the atomizer is provided and includes a base  20 , a housing  10  sleeved on the base  20  and having a sealed connection with the base  20  to define a liquid storage cavity  111 , an electrode  90  arranged on a bottom of the base  20 , a liquid injection member  109  arranged on the base  20  and used to inject liquid into the liquid storage cavity  111 , an atomizer body arranged on the base  20 , a airflow channel through the whole atomizer, a first liquid suction structure and a second liquid suction structure. The atomizer body includes an atomizing member  30 . The airflow channel includes an air inlet channel  131 , an atomizing cavity  311 , and an air outlet channel  121 . The first liquid suction structure has a fluid connection with the second liquid suction structure on the air outlet channel  121 . The first liquid suction structure and the second liquid suction structure absorb a condensate formed on the air outlet channel  121  by the capillary force. The second liquid suction structure is located between the atomizing member  30  and the first liquid suction structure. The capillary force of the second liquid suction structure is greater than the capillary force of the first liquid suction structure. Liquid storage groove  105  that absorb and store the condensate by the capillary force are defined on the second liquid suction structure. The condensate in the first liquid suction structure reaches the second liquid suction structure by the capillary force of the liquid storage groove  105  and is then absorbed and stored. 
     In the present embodiment, the second liquid suction structure has an inner wall. The inner wall is concaves to form the liquid storage groove  105 . The inner wall of the second liquid suction structure encloses a part of the air outlet channel  121 . The first liquid suction structure is a liquid suction groove  122  extending along a longitudinal direction of the inner wall of the air outlet channel  121 , and one end of the liquid suction groove  122  is butted with the liquid storage groove  105 . 
     In the present embodiment, the air outlet channel  121  includes a first airway wall  1213  and a second airway wall  1214  detachable with the first airway wall  1213 . The first liquid suction structure is defined on the first airway wall  1213 , and the second airway wall  1214  is an inner wall of the first liquid suction structure. As shown in  FIG. 11 , the housing  10  includes a housing body and an air outlet tube  12  longitudinally disposed in an internal cavity of the housing body. The second liquid suction structure is disposed below the air outlet tube  12 , the first airway wall  1213  is the air outlet tube  12 , and the second airway wall  1214  is the inner wall of the first liquid suction structure. A complete air outlet channel  121  is formed with the air outlet tube  12  and an inner cavity of the second liquid suction structure. 
     In other embodiments, the second liquid suction structure may be defined on an integrally-formed single element, for example, the air outlet tube  12  are arranged adjacently to the atomizing member  30  up and down, the second liquid suction structure and the air outlet tube  12  are one integral structure, and the liquid storage grooves  105  are defined on the inner wall surface of the air outlet tube  12 . In the present embodiment, the second liquid suction structure and the air outlet tube  12  are two separate structures, and the second liquid suction structure includes a cylindrical body disposed directly above the atomizing member  30 . A complete airflow channel is defined by the air inlet channel  131 , the atomizing cavity  311 , the inner cavity of the second liquid suction structure, and the air outlet tube  12 . 
     As shown in  FIGS. 13 and 14 , the air outlet tube  12  includes a first end  1211  close to the atomizing member  30  and a second end  1212  away from the atomizing member  30 . The liquid suction groove  122  extends longitudinally from the first end  1211  of the air outlet tube  12  toward the second end  1212  of the air outlet tube  12 . The number of the liquid suction groove  122  is several. The liquid suction grooves  122  are evenly distributed along a peripheral wall of the air outlet channel  121  and substantially parallel to a central axis of the air outlet channel  121 . The first liquid suction structure may be detachably connected or fixedly connected to an inner side wall of the air outlet tube  12 . In the present embodiment, the first liquid suction structure is fixedly connected to the inner side wall of the air outlet tube  12 , that is, the first liquid suction structure and the air outlet tube  12  are one integral structure. At least one longitudinally extending liquid suction groove  122  is defined on the inner side wall of the air outlet tube  12 . The liquid suction groove  122  is not limited to be disposed in the longitudinal direction, may be disposed spirally, or obliquely, or the inner side wall surface is arranged with a rough surface texture to increase wettability of a surface of the condensate. In other embodiments, a liquid leakage guiding element is fixed on the inner side wall of the air outlet tube  12  in detachably connection manners such as pasting, clamping, and so on. 
     As shown in  FIG. 11 , the atomizing member  30  includes a cylindrical atomizing core  321 , a liquid guiding cotton  323  surrounding the atomizing core  321 , and a heating body  322  entangled on the atomizing core  321 . A conductive connection element of the heating body  322  penetrates into the base  20  and is connected to an electrode  90 . In some embodiments, the heating body  322  may be a heating wire. During the atomizer being used, the liquid guiding cotton  323  absorbs the e-liquid in the liquid storage cavity  111 , and the heating body  322  is energized to generate heat, such that the e-liquid in the atomizing core  321  is atomized In response to the user inhales through a suction port of a top cover of the atomizer, the air enters the atomizing core  321  from an air inlet channel  131  under a suction force, mixed with an atomized e-liquid in the atomizing cavity  311  of the atomizing core  321 , and discharged from the suction port of the top cover of the atomizer after passing through the air outlet channel  121 . 
     In response to the atomized gas reaching an air outlet through the air outlet channel  121 , a gas flow around the air outlet channel  121  will be condensed to an e-liquid condensate as a result of being contacted with the inner side of the air outlet tube  12 , in which case, the condensate will be sucked into the liquid suction groove  122  by a capillary action. Since a capillary force of the liquid storage groove  105  is greater than a capillary force of the liquid suction groove  122 , the capillary force of the liquid storage groove  105  may be configured for making the condensate in the liquid suction groove  122  reach the second liquid suction groove under, and further be absorbed and stored. 
     In order that the condensate absorbed into the liquid suction groove  122  may be better returned back to the second liquid suction structure under the capillary force of the liquid storage groove  105 , and further absorbed and stored by the second liquid suction structure, a groove depth of the liquid suction groove  122  is configured to be gradually increased toward the liquid storage groove  105 , that is, the groove depth of the liquid suction groove  122  is gradually increased from the second end  1212  to the first end  1211 . The groove depth of the liquid suction groove  122  is preferred to be greater than or equal to 0.1 mm. 
     In some embodiments, a groove width of the liquid suction groove  122  may be configured to be gradually increased toward the liquid storage groove  105 , that is, the groove width of the liquid suction groove  122  is gradually increased from the second end  1212  to the first end  1211 . And the groove width of the liquid suction groove  122  may be configured to be gradually increased from a bottom of the liquid suction groove  122  to an opening of the liquid suction groove  122 . Preferably, the groove width of the liquid suction groove  122  is 0.05-1 mm. 
     Based on the above-mentioned embodiment for the first liquid suction structure, a bottom of the second liquid suction structure abuts the liquid guiding cotton  323  of the atomizing member  30 , a liquid returning structure is arranged on the bottom of the second liquid suction structure to make the liquid storage groove  105  be in fluid connection to the liquid guiding cotton  323  for guiding liquid, such that the condensate in the liquid storage groove  105  may be returned into the liquid guiding cotton  323  to be absorbed and reused. The liquid returning structure is a liquid returning groove or a liquid outlet or a stepped structure. 
     As shown in  FIG. 15 , in some embodiments, the liquid storage groove  105  is a substantially horizontal liquid storage groove. Specifically, a plurality of first fins  104  are arranged on an inner wall of the second liquid suction structure. The first fins  104  are arranged at intervals in parallel along the longitudinal direction. A substantially horizontal liquid storage groove  105  is defined between each two adjacent fins  104 , a width of the liquid storage groove  105  is configured to be sufficiently small so as to generate a capillary force on the condensate. In this way, liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves  105  in response to passing through a structure of the first fins  104 , and further to form a liquid film in the liquid storage grooves  105  so as to be stored in the liquid storage grooves  105 , and a possibility of liquid leakage may be reduced. 
     In order to reduce the possibility that the e-liquid is brought out as the suction process in response to excessive e-liquid accumulated in the liquid storage groove  105 , and for the condensate being reused, in the present embodiment, the second liquid suction structure includes at least one liquid returning groove  106  extending along the longitudinal direction. At least part of the liquid storage grooves  105  are slit by the at least one liquid returning groove  106 . The e-liquid may return to the liquid guiding cotton  323  to be atomized again along the liquid returning groove  106 , in response to excessive e-liquid accumulated in the liquid storage groove  105 . Specifically, two liquid returning grooves  106  at the same diameter are defined on an inner wall of the second liquid suction structure. The first fins  104  are slit by the liquid returning grooves  106  from a next fin  104  of a top first fin  104  of the second liquid suction structure to a bottom first fin  104 . The top first fin  104  of the second liquid suction structure is used to block a condensate in the liquid returning groove  106  to flow to the air outlet channel  121 . 
     In order to make a returning e-liquid better absorbed and re-atomized by the liquid guiding cotton  323 , a length of the bottom first fin  104  of the second liquid suction structure extending to a central axis of the second liquid suction structure is less than a length of an adjacent first fin  104  of the bottom first fin  104  extending to the central axis of the second liquid suction structure. 
     Since the capillary force of the liquid storage groove  105  may be configured for making the condensate in the liquid suction groove  122  reach the second liquid suction groove and further be absorbed and stored, a first liquid guiding port  117  is defined on the top first fin  104  of the second liquid suction structure, corresponding to the liquid suction groove  122 , and used to guide the condensate in the liquid suction groove  122  into the liquid storage groove  105  to be better absorbed and stored by the second liquid suction structure. Specifically, in the present embodiment, the second liquid suction structure is cylindrical, the top first fin  104  is circular, and the other fins are fan-shaped, and the first liquid guiding port  117  is a notch opened on an edge of an inner circular. 
     As shown in  FIG. 15 , the plurality of the first fins  104  are arranged on an inner wall surface of the cylindrical body. The cylindrical body includes a first part  102  and a second part (not shown) detachably enclosed with the first part  102 . A plurality of the first fins  104  are arranged on an inner wall surface of the first part  102 , and a plurality of the first fins  104  are arranged on the inner wall surface of the second part. Specifically, the second liquid suction structure is cylindrical, may be formed by combining two semi-cylindricals. The top first fin  104  is circular, and the other fins are fan-shaped. 
     As shown in  FIGS. 16 and 17 , in some embodiments, the liquid storage groove  105  is a longitudinal liquid storage groove. Specifically, the second liquid suction structure is a hollow structure, a top wall  113  is arranged on a top of the second liquid suction structure, and a plurality of liquid storage plates  114  are arranged from the top wall  113  longitudinally extending to a bottom of the second liquid suction structure. The liquid storage plates  114  are arranged at intervals, and the liquid storage groove  105  is defined between each two adjacent liquid storage plates  114 . 
     In order to achieve a better liquid dispense and a better liquid suction, in the present embodiment, the second liquid suction structure further includes at least one liquid guiding groove  115  fluidly coupled to a part of the liquid storage groove  105  and used for dispensing the condensate. Middles of at least part of the liquid storage plates  114  are cross-cut by the liquid guiding groove  115 . In some embodiments, the liquid guiding groove  115  and the liquid storage grooves  114  are not limited to be substantially parallel or perpendicular to each other, as long as a cross liquid dispensing may be achieved. 
     In order to achieve a liquid dispensing at the bottom of the second liquid suction structure, the second liquid suction structure further includes at least one first stepped platform  116  cross-cutting the bottoms of at least part of the liquid storage plates  114  and used for dispensing the condensate. In the present embodiment, the bottoms of all the liquid storage plates  114  are cross-cut by the first stepped platform  116 . 
     In order to make the dispensed condensate be better returned into the atomizing core and be re-atomized, a second stepped platform  125  is arranged on the at least one the first step platform  116 . In the present embodiment, the second stepped platforms  125  are arranged on two of the first stepped platforms  116 . A step structure is formed by the first stepped platform  116 , the second stepped platform  125  and the liquid storage groove  105 . 
     Similarly, Since the capillary force of the liquid storage groove  105  may be configured for making the condensate in the liquid suction groove  122  reach the second liquid suction structure and further be absorbed and stored, a second liquid guiding port  118  is defined on the top wall  113  of the second liquid suction structure and corresponds to the liquid suction groove  122 . Specifically, in the present embodiment, the second liquid suction structure is cylindrical, the top wall  113  is circular, and the second liquid guiding port  118  is a notch defined on the edge of the inner circular. 
     A plurality of the liquid storage plates  114  are arranged on the inner wall surface of the cylindrical body. The cylindrical body includes the first part  102  and the second part detachably enclosed with the first part  102 . A plurality of the liquid storage plates  114  are arranged on an inner wall surface of the first part, and a plurality of the liquid storage plates  114  are arranged on an inner wall surface of the second part. Specifically, the second liquid suction structure is cylindrical and may be formed by combining two semi-cylindricals. 
     In some embodiments, the liquid storage groove  105  is a threaded liquid storage groove and includes second fins arranged spirally on an inner wall of the liquid storage groove  105  to form the liquid storage groove  105  with a threaded structure. 
     In order to make the condensate in the liquid storage groove  105  be returned into the atomizing core to be re-atomized, the second liquid suction structure includes at least one liquid outlet silting a part of the second fins in the bottom of the liquid storage groove  105 . 
     A plurality of the second fins are arranged on an inner wall surface of the cylindrical body. The cylindrical body includes the first part  102  and the second part (not shown) may detachably enclosed with the first part  102 . A plurality of the second fins are arranged on the inner wall surface of the first part  102 , and a plurality of the second fins are arranged on the inner wall surface of the second part. Specifically, the second liquid suction structure is cylindrical, may be formed by combining two semi-cylindricals. 
     In the above-mentioned embodiment, the reason that the second liquid suction structure is arranged directly above the atomizing core  321  and adjacent to the atomizing core  321  is: in response to an electronic cigarette being heated for an atomization, smoke is easily to form a condensate on the gas channel wall as passing through the air outlet channel The second liquid suction structure arranged directly above the atomizing member may absorb the liquid drops carried by the smoke and store the liquid drops to the liquid storage grooves  105 , such that a possibility of suction liquid leakage may be greatly reduced. 
     In some embodiments, the groove depth of the liquid storage groove  105  is greater than or equal to 0.1 mm, and the groove width of the liquid storage groove  105  is 0.05-1 mm. The second liquid suction structure may also be made of one or more of PETG, PCTG and PC. 
     Moreover, in the present embodiment, as shown in  FIG. 11 , The atomizing member  30  and the second liquid suction structure may also be arranged in the same sleeve  107 , the second liquid suction structure are arranged adjacently to the atomizing member  30 , and at least one liquid inlet  110  is defined on where the atomizing member  30  corresponds to the sleeve  107 . The at least one liquid inlet  110  is used to make the e-liquid stored in the liquid storage cavity  111  be absorbed by the liquid guiding cotton  323 . 
     In addition, in order to fix the atomizing member  30  and the second liquid suction structure and have a more convenient installation, an outer side wall of the second liquid suction structure is closely contacted the inner side wall of the sleeve  107 . In some embodiments, the second liquid suction structure and the sleeve  107  may be one integral structure. 
     In order to seal a connection between the sleeve  107  and the air outlet channel  121 , a sealing element  108  hermetically connected with the air outlet channel  121  is arranged on the sleeve  107  corresponding to a top of the second liquid suction structure, and the seal element may be a silicone sleeve or a rubber sleeve. Understandably, in some other embodiments, it is not limited to be the silicone sleeve or the rubber sleeve. 
     In a third present disclosure as shown in  FIGS. 9, 10 and 11 , another electronic atomizing device is provided and includes a base  20 , a housing  10  sleeved on the base  20  and having a sealed connection with the base  20  to define a liquid storage cavity  111 , an electrode  90  arranged on a bottom of the base  20 , a liquid injection member  109  arranged on the base  20  used to inject liquid into the liquid storage cavity  111 , an atomizer body arranged on the base  20 , a airflow channel through the whole atomizer, a first liquid suction structure and a second liquid suction structure. The atomizer body includes an atomizing member  30 . The airflow channel includes an air inlet channel  131 , an atomizing cavity  311 , and an air outlet channel  121 . The first liquid suction structure has a fluid connection with the second liquid suction structure on the air outlet channel  121 . The first liquid suction structure and the second liquid suction structure absorb a condensate formed on the air outlet channel  121  by the capillary force. The second liquid suction structure is located between the atomizing member  30  and the first liquid suction structure. The capillary force of the second liquid suction structure is greater than the capillary force of the first liquid suction structure. Liquid storage groove  105  that absorb and store the condensate by the capillary force are defined on the second liquid suction structure. The condensate in the first liquid suction structure reaches the second liquid suction structure by the capillary force of the liquid storage groove  105  and is then absorbed and stored. In the present embodiment, the electronic atomizing device may be a disposable atomizing device with the base, the housing and the atomizer body in an integrated structure, and may also be an atomizing device with the base, the housing and the atomizer body in separate structures. 
     In the present embodiment, the second liquid suction structure has an inner wall. The inner wall is concaves to form the liquid storage groove  105 . The inner wall of the second liquid suction structure encloses a part of the air outlet channel  121 . The first liquid suction structure is a liquid suction groove  122  extending along a longitudinal direction of the inner wall of the air outlet channel  121 , and one end of the liquid suction groove  122  is butted with the liquid storage groove  105 . 
     In the present embodiment, the air outlet channel  121  includes a first airway wall  1213  and a second airway wall  1214  detachable with the first airway wall  1213 . The first liquid suction structure is defined on the first airway wall  1213 , and the second airway wall  1214  is an inner wall of the first liquid suction structure. As shown in  FIG. 11 , the housing  10  includes a housing body and an air outlet tube  12  longitudinally disposed in an internal cavity of the housing body. The second liquid suction structure is disposed below the air outlet tube  12 , the first airway wall  1213  is the air outlet tube  12 , and the second airway wall  1214  is the inner wall of the first liquid suction structure. A complete air outlet channel  121  is formed with the air outlet tube  12  and an inner cavity of the second liquid suction structure. 
     In other embodiments, the second liquid suction structure may be defined on an integrally-formed single element, for example, the air outlet tube  12  are arranged adjacently to the atomizing member  30  up and down, the second liquid suction structure and the air outlet tube  12  are one integral structure, and the liquid storage grooves  105  are defined on the inner wall surface of the air outlet tube  12 . In the present embodiment, the second liquid suction structure and the air outlet tube  12  are two separate structures, and the second liquid suction structure includes a cylindrical body disposed directly above the atomizing member  30 . A complete airflow channel is defined by the air inlet channel  131 , the atomizing cavity  311 , the inner cavity of the second liquid suction structure, and the air outlet tube  12 . 
     As shown in  FIGS. 13 and 14 , the air outlet tube  12  includes a first end  1211  close to the atomizing member  30  and a second end  1212  away from the atomizing member  30 . The liquid suction groove  122  extends longitudinally from the first end  1211  of the air outlet tube  12  toward the second end  1212  of the air outlet tube  12 . The number of the liquid suction groove  122  is several. The liquid suction grooves  122  are evenly distributed along a peripheral wall of the air outlet channel  121  and substantially parallel to a central axis of the air outlet channel  121 . The first liquid suction structure may be detachably connected or fixedly connected to an inner side wall of the air outlet tube  12 . In the present embodiment, the first liquid suction structure is fixedly connected to the inner side wall of the air outlet tube  12 , that is, the first liquid suction structure and the air outlet tube  12  are one integral structure. At least one longitudinally extending liquid suction groove  122  is defined on the inner side wall of the air outlet tube  12 . The liquid suction groove  122  is not limited to be disposed in the longitudinal direction, may be disposed spirally, or obliquely, or the inner side wall surface is arranged with a rough surface texture to increase wettability of a surface of the condensate. In other embodiments, a liquid leakage guiding element is fixed on the inner side wall of the air outlet tube  12  in detachably connection manners such as pasting, clamping, and so on. 
     As shown in  FIG. 11 , the atomizing member  30  includes a cylindrical atomizing core  321 , a liquid guiding cotton  323  surrounding the atomizing core  321 , and a heating body  322  entangled on the atomizing core  321 . A conductive connection element of the heating body  322  penetrates into the base  20  and is connected to an electrode  90 . In some embodiments, the heating body  322  may be a heating wire. During the atomizer being used, the liquid guiding cotton  323  absorbs the e-liquid in the liquid storage cavity  111 , and the heating body  322  is energized to generate heat, such that the e-liquid in the atomizing core  321  is atomized In response to the user inhales through a suction port of a top cover of the atomizer, the air enters the atomizing core  321  from an air inlet channel  131  under a suction force, mixed with an atomized e-liquid in the atomizing cavity  311  of the atomizing core  321 , and discharged from the suction port of the top cover of the atomizer after passing through the air outlet channel  121 . 
     In response to the atomized gas reaching an air outlet through the air outlet channel  121 , a gas flow around the air outlet channel  121  will be condensed to an e-liquid condensate as a result of being contacted with the inner side of the air outlet tube  12 , in which case, the condensate will be sucked into the liquid suction groove  122  by a capillary action. Since a capillary force of the liquid storage groove  105  is greater than a capillary force of the liquid suction groove  122 , the capillary force of the liquid storage groove  105  may be configured for making the condensate in the liquid suction groove  122  reach the second liquid suction groove under, and further be absorbed and stored. 
     In order that the condensate absorbed into the liquid suction groove  122  may be better returned back to the second liquid suction structure under the capillary force of the liquid storage groove  105 , and further absorbed and stored by the second liquid suction structure, a groove depth of the liquid suction groove  122  is configured to be gradually increased toward the liquid storage groove  105 , that is, the groove depth of the liquid suction groove  122  is gradually increased from the second end  1212  to the first end  1211 . The groove depth of the liquid suction groove  122  is preferred to be greater than or equal to 0.1 mm. 
     In some embodiments, a groove width of the liquid suction groove  122  may be configured to be gradually increased toward the liquid storage groove  105 , that is, the groove width of the liquid suction groove  122  is gradually increased from the second end  1212  to the first end  1211 . And the groove width of the liquid suction groove  122  may be configured to be gradually increased from a bottom of the liquid suction groove  122  to an opening of the liquid suction groove  122 . Preferably, the groove width of the liquid suction groove  122  is 0.05-1 mm. 
     Based on the above-mentioned embodiment for the first liquid suction structure, a bottom of the second liquid suction structure abuts the liquid guiding cotton  323  of the atomizing member  30 , a liquid returning structure is arranged on the bottom of the second liquid suction structure to make the liquid storage groove  105  be in fluid connection to the liquid guiding cotton  323  for guiding liquid, such that the condensate in the liquid storage groove  105  may be returned into the liquid guiding cotton  323  to be absorbed and reused. The liquid returning structure is a liquid returning groove or a liquid outlet or a stepped structure. 
     As shown in  FIG. 15 , in some embodiments, the liquid storage groove  105  is a substantially horizontal liquid storage groove. Specifically, a plurality of first fins  104  are arranged on an inner wall of the second liquid suction structure. The first fins  104  are arranged at intervals in parallel along the longitudinal direction. A substantially horizontal liquid storage groove  105  is defined between each two adjacent fins  104 , a width of the liquid storage groove  105  is configured to be sufficiently small so as to generate a capillary force on the condensate. In this way, liquid drops brought out by smoke generated during the suction process may be retained in the liquid storage grooves  105  in response to passing through a structure of the first fins  104 , and further to form a liquid film in the liquid storage grooves  105  so as to be stored in the liquid storage grooves  105 , and a possibility of liquid leakage may be reduced. 
     In order to reduce the possibility that the e-liquid is brought out as the suction process in response to excessive e-liquid accumulated in the liquid storage groove  105 , and for the condensate being reused, in the present embodiment, the second liquid suction structure includes at least one liquid returning groove  106  extending along the longitudinal direction. At least part of the liquid storage grooves  105  are slit by the at least one liquid returning groove  106 . The e-liquid may return to the liquid guiding cotton  323  to be atomized again along the liquid returning groove  106 , in response to excessive e-liquid accumulated in the liquid storage groove  105 . Specifically, two liquid returning grooves  106  at the same diameter are defined on an inner wall of the second liquid suction structure. The first fins  104  are slit by the liquid returning grooves  106  from a next fin  104  of a top first fin  104  of the second liquid suction structure to a bottom first fin  104 . The top first fin  104  of the second liquid suction structure is used to block a condensate in the liquid returning groove  106  to flow to the air outlet channel  121 . 
     In order to make a returning e-liquid better absorbed and re-atomized by the liquid guiding cotton  323 , a length of the bottom first fin  104  of the second liquid suction structure extending to a central axis of the second liquid suction structure is less than a length of an adjacent first fin  104  of the bottom first fin  104  extending to the central axis of the second liquid suction structure. 
     Since the capillary force of the liquid storage groove  105  may be configured for making the condensate in the liquid suction groove  122  reach the second liquid suction groove and further be absorbed and stored, a first liquid guiding port  117  is defined on the top first fin  104  of the second liquid suction structure, corresponding to the liquid suction groove  122 , and used to guide the condensate in the liquid suction groove  122  into the liquid storage groove  105  to be better absorbed and stored by the second liquid suction structure. Specifically, in the present embodiment, the second liquid suction structure is cylindrical, the top first fin  104  is circular, and the other fins are fan-shaped, and the first liquid guiding port  117  is a notch opened on an edge of an inner circular. 
     As shown in  FIG. 15 , the plurality of the first fins  104  are arranged on an inner wall surface of the cylindrical body. The cylindrical body includes a first part  102  and a second part (not shown) detachably enclosed with the first part  102 . A plurality of the first fins  104  are arranged on an inner wall surface of the first part  102 , and a plurality of the first fins  104  are arranged on the inner wall surface of the second part. Specifically, the second liquid suction structure is cylindrical, may be formed by combining two semi-cylindricals. The top first fin  104  is circular, and the other fins are in shapes of fan. 
     As shown in  FIGS. 16 and 17 , in some embodiments, the liquid storage groove  105  is a longitudinal liquid storage groove. Specifically, the second liquid suction structure is a hollow structure, a top wall  113  is arranged on a top of the second liquid suction structure, and a plurality of liquid storage plates  114  are arranged from the top wall  113  longitudinally extending to a bottom of the second liquid suction structure. The liquid storage plates  114  are arranged at intervals, and the liquid storage groove  105  is defined between each two adjacent liquid storage plates  114 . 
     In order to achieve a better liquid dispense and a better liquid suction, in the present embodiment, the second liquid suction structure further includes at least one liquid guiding groove  115  fluidly coupled to a part of the liquid storage groove  105  and used for dispensing the condensate. Middles of at least part of the liquid storage plates  114  are cross-cut by the liquid guiding groove  115 . In some embodiments, the liquid guiding groove  115  and the liquid storage grooves  114  are not limited to be substantially parallel or perpendicular to each other, as long as a cross liquid dispensing may be achieved. 
     In order to achieve a liquid dispensing at the bottom of the second liquid suction structure, the second liquid suction structure further includes at least one first stepped platform  116  cross-cutting the bottoms of at least part of the liquid storage plates  114  and used for dispensing the condensate. In the present embodiment, the bottoms of all the liquid storage plates  114  are cross-cut by the first stepped platform  116 . 
     In order to make the dispensed condensate be better returned into the atomizing core and be re-atomized, a second stepped platform  125  is arranged on the at least one the first step platform  116 . In the present embodiment, the second stepped platforms  125  are arranged on two of the first stepped platforms  116 . A step structure is formed by the first stepped platform  116 , the second stepped platform  125  and the liquid storage groove  105 . 
     Similarly, Since the capillary force of the liquid storage groove  105  may be configured for making the condensate in the liquid suction groove  122  reach the second liquid suction structure and further be absorbed and stored, a second liquid guiding port  118  is defined on the top wall  113  of the second liquid suction structure and corresponds to the liquid suction groove  122 . Specifically, in the present embodiment, the second liquid suction structure is cylindrical, the top wall  113  is circular, and the second liquid guiding port  118  is a notch defined on the edge of the inner circular. 
     A plurality of the liquid storage plates  114  are arranged on the inner wall surface of the cylindrical body. The cylindrical body includes the first part  102  and the second part detachably enclosed with the first part  102 . A plurality of the liquid storage plates  114  are arranged on an inner wall surface of the first part, and a plurality of the liquid storage plates  114  are arranged on an inner wall surface of the second part. Specifically, the second liquid suction structure is cylindrical and may be formed by combining two semi-cylindricals. 
     In some embodiments, the liquid storage groove  105  is a threaded liquid storage groove and includes second fins arranged spirally on an inner wall of the liquid storage groove  105  to form the liquid storage groove  105  with a threaded structure. 
     In order to make the condensate in the liquid storage groove  105  be returned into the atomizing core to be re-atomized, the second liquid suction structure includes at least one liquid outlet silting a part of the second fins in the bottom of the liquid storage groove  105 . 
     A plurality of the second fins are arranged on an inner wall surface of the cylindrical body. The cylindrical body includes the first part  102  and the second part (not shown) may detachably enclosed with the first part  102 . A plurality of the second fins are arranged on the inner wall surface of the first part  102 , and a plurality of the second fins are arranged on the inner wall surface of the second part. Specifically, the second liquid suction structure is cylindrical, may be formed by combining two semi-cylindricals. 
     In the above-mentioned embodiment, the reason that the second liquid suction structure is arranged directly above the atomizing core  321  and adjacent to the atomizing core  321  is: in response to an electronic cigarette being heated for an atomization, smoke is easily to form a condensate on the gas channel wall as passing through the air outlet channel The second liquid suction structure arranged directly above the atomizing member may absorb the liquid drops carried by the smoke and store the liquid drops to the liquid storage grooves  105 , such that a possibility of suction liquid leakage may be greatly reduced. 
     In some embodiments, the groove depth of the liquid storage groove  105  is greater than or equal to 0.1 mm, and the groove width of the liquid storage groove  105  is 0.05-1 mm. The second liquid suction structure may also be made of one or more of PETG, PCTG and PC. 
     Moreover, in the present embodiment, as shown in  FIG. 11 , The atomizing member  30  and the second liquid suction structure may also be arranged in the same sleeve  107 , the second liquid suction structure are arranged adjacently to the atomizing member  30 , and at least one liquid inlet  110  is defined on where the atomizing member  30  corresponds to the sleeve  107 . The at least one liquid inlet  110  is used to make the e-liquid stored in the liquid storage cavity  111  be absorbed by the liquid guiding cotton  323 . 
     In addition, in order to fix the atomizing member  30  and the second liquid suction structure and have a more convenient installation, an outer side wall of the second liquid suction structure is closely contacted the inner side wall of the sleeve  107 . In some embodiments, the second liquid suction structure and the sleeve  107  may be one integral structure. 
     In order to seal a connection between the sleeve  107  and the air outlet channel  121 , a sealing element  108  hermetically connected with the air outlet channel  121  is arranged on the sleeve  107  corresponding to a top of the second liquid suction structure, and the seal element may be a silicone sleeve or a rubber sleeve. Understandably, in some other embodiments, it is not limited to be the silicone sleeve or the rubber sleeve. 
     By implementing the third embodiment, the following beneficial effects can be obtained. 
     In the present disclosure, a first liquid suction structure and a second liquid suction structure having a fluid connection with the first liquid suction structure are defined on an air outlet channel. The first liquid suction structure and the second liquid suction structure are configured to absorb a condensate formed on the air outlet channel by capillary forces. The second liquid suction structure is located between the atomizing member and the first liquid suction structure, and the capillary force of the second liquid suction structure is greater than the capillary force of the first liquid suction structure. A liquid storage groove that absorbs and stores the condensate by the capillary force is defined on the second liquid suction structure. The condensate in the first liquid suction structure reaches the second liquid suction structure by the capillary force of the liquid storage groove and is then absorbed and stored, such that incompletely atomized e-liquid during a suction process and the condensate generated on the air outlet channel may be absorbed and stored. In this way, the occurrence of a liquid leakage during a suction process of the user may be reduced, and the user experience may be improved. 
     In addition, a bottom of the second liquid suction structure abuts the liquid guiding cotton  323 , a liquid returning structure is arranged on the bottom of the second liquid suction structure to make the liquid storage groove be in fluid connection to the liquid guiding cotton  323  for guiding liquid, such that the condensate in the liquid storage groove may be returned into the liquid guiding cotton  323  to be re-atomized, and a utilization rate of the e-liquid may be improved. 
     In response to an electronic cigarette being heated for an atomization, smoke is easily to form a condensate on the gas channel wall as passing through the air outlet channel The second liquid suction structure arranged directly above the atomizing member may absorb the liquid drops carried by the smoke and store the liquid drops to the liquid storage grooves, such that a possibility of suction liquid leakage may be greatly reduced. 
     It is understandable that the above embodiments simply indicate preferred embodiments of the present disclosure. The specific and detailed description for the embodiments should not be construed as a limitation of the scope of the present disclosure. It should be pointed out that for the ordinary skilled in the art, without departing from the concept of the present disclosure, a free combination for above technical features can be made and several modifications and improvements can also be made, all of which belong to the protection scope of the present disclosure. Therefore, all equivalent transformations and modifications to the scope of claims shall fall within the scope covered by the claims of the present disclosure.