Abstract:
Disclosed are an inhaler, an atomizing assembly ( 100 ) and an atomizing core ( 140 ). The atomizing assembly ( 100 ) of the abovementioned inhaler comprises a shell ( 120 ) and the atomizing core ( 140 ) disposed to be joined with the shell ( 120 ). The shell ( 120 ) is internally provided with a gas flow passage ( 121 ) and a liquid storage cavity ( 122 ) which encircles the gas flow passage ( 121 ) and serves for liquid storage; the atomizing core ( 140 ) comprises a core body ( 141 ), an exhaust tube ( 142 ) and an atomizing element ( 143 ), the core body ( 141 ) is internally provided with an atomizing cavity ( 1411 ), and the exhaust tube ( 142 ) is disposed at a gas outlet ( 1413 ); the atomizing element ( 143 ) is disposed within the atomizing cavity ( 1411 ) and is used for liquid atomization; at least a part of the exhaust tube ( 142 ) extends into the gas flow passage ( 121 ), and a through hole ( 1422 ) or a gap ( 1423   a - 1423   d ) which communicates with the interior of the exhaust tube ( 142 ) and the gas flow passage ( 121 ) is disposed on the sidewall of the exhaust tube ( 142 ).

Description:
FIELD OF THE INVENTION 
       [0001]    The present disclosure relates to a field of devices for delivering atomized medium into a human body, and more particularly relates to an inhaler, an atomizing assembly, and an atomizing core. 
       BACKGROUND OF THE INVENTION 
       [0002]    An inhaler is a device used for delivering atomized liquid into a human body, which mainly includes an electronic cigarette for substituting tobacco cigarette and a medical nebulizer for treating upper respiratory diseases. 
         [0003]    When using the conventional electronic cigarettes or nebulizers having a similar structure, the inhaler may make some noise like bubbling, even worse, the user may frequently draws fluid into the mouth. 
       SUMMARY OF THE INVENTION 
       [0004]    Accordingly, it is necessary to provide an inhaler, an atomizing assembly, and an atomizing core to address the aforementioned deficiency of making noise and easily drawing fluid into the mouth. 
         [0005]    An atomizing assembly for an inhaler includes: 
         [0006]    a housing defining an airflow channel therein and comprising a reservoir surrounding the airflow channel for storing liquid; and 
         [0007]    an atomizing core coupled to the housing and comprising a core body, an exhaust pipe, and an atomizing element, the core body defining an atomizing chamber therein, the core body further defining an inlet and an outlet thereon in fluid communication with the atomizing chamber, the exhaust pipe being located at the outlet, the atomizing element being received in the atomizing chamber and being configured to atomize the liquid; 
         [0008]    wherein the core body further defines a liquid absorbing hole in fluid communication with the atomizing chamber and the reservoir, the atomizing element is in contact with the liquid in the reservoir via the liquid absorbing hole, the exhaust pipe extends at least partially into the airflow channel, the exhaust pipe defines a through hole or notch on a sidewall thereof which is in fluid communication with an interior of the exhaust pipe and the airflow channel. 
         [0009]    An inhaler includes a power source assembly and the atomizing assembly for an inhaler; wherein the power source assembly is fixed to the atomizing assembly, and the power source assembly is electrically coupled to the atomizing element. 
         [0010]    An atomizing core of an atomizing assembly for an inhaler includes a core body, an exhaust pipe, and an atomizing element; 
         [0011]    wherein the core body defines an atomizing chamber therein, the core body further has an inlet and an outlet thereon in fluid communication with the atomizing chamber, the core body further defines a liquid absorbing hole in fluid communication with the atomizing chamber and an external; 
         [0012]    wherein the exhaust pipe is located at the outlet, the exhaust pipe defines a through hole or notch on a sidewall thereof which is in fluid communication with an interior and an external of the exhaust pipe; 
         [0013]    wherein the atomizing element is received in the atomizing chamber, and the atomizing element is in contact with external liquid via the liquid absorbing hole. 
         [0014]    According to the foregoing inhaler, atomizing assembly, and atomizing core, the exhaust pipe defines the through hole or notch on the sidewall thereof which is in fluid communication with the interior of the exhaust pipe and the airflow channel, such that the condensed liquid in the airflow channel can return to the atomizing chamber, thus preventing the liquid from forming a film at the end of the exhaust pipe due to the large viscosity and surface tension, the film can block the liquid from flowing back from the end of the exhaust pipe to the atomizing chamber. In addition, the liquid will not accumulate in the airflow channel, such that the deficiency of making noise and easily drawing fluid into the mouth by the user during use can be solved. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0015]      FIG. 1  is a perspective view of an atomizing assembly of an inhaler according to an embodiment; 
           [0016]      FIG. 2  is a cross-sectional view of the atomizing assembly of the inhaler of  FIG. 1 ; 
           [0017]      FIG. 3  is a partial enlarged view of the atomizing assembly of the inhaler of  FIG. 2 ; 
           [0018]      FIG. 4  is a perspective view of an atomizing core of the atomizing assembly of the inhaler of  FIG. 1 ; 
           [0019]      FIG. 5  is an exploded view of the atomizing core of the atomizing assembly of the inhaler of  FIG. 4 ; 
           [0020]      FIG. 6  is a cross-sectional view of the atomizing core of the atomizing assembly of the inhaler of  FIG. 4   
           [0021]      FIG. 7  is a front view of an atomizing element; 
           [0022]      FIG. 8  is a perspective view of an atomizing core of the atomizing assembly of the inhaler according to another embodiment; 
           [0023]      FIG. 9  is a perspective view of an atomizing core of the atomizing assembly of the inhaler according to another embodiment; 
           [0024]      FIG. 10  is a perspective view of an atomizing core of the atomizing assembly of the inhaler according to another embodiment; 
           [0025]      FIG. 11  is a perspective view of an atomizing core of the atomizing assembly of the inhaler according to another embodiment; 
           [0026]      FIG. 12  is an exploded view of the atomizing assembly of the inhaler of  FIG. 1 ; 
           [0027]      FIG. 13  is a partial enlarged view of the atomizing assembly of the inhaler of  FIG. 1 ; 
           [0028]      FIG. 14  is another exploded view of the atomizing assembly of the inhaler of  FIG. 1 ; 
           [0029]      FIG. 15  is an partial exploded view of the atomizing assembly of the inhaler of  FIG. 14 ; 
           [0030]      FIG. 16  is another exploded view of the atomizing core of the atomizing assembly of the inhaler of  FIG. 1 ; 
           [0031]      FIG. 17  is a perspective view of a power source of an inhaler according to an embodiment, and 
           [0032]      FIG. 18  is a cross-sectional view of the power source of the inhaler of  FIG. 17 . 
       
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
       [0033]    Embodiments of the invention are described more fully hereinafter with reference to the accompanying drawings. The various embodiments of the invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. 
         [0034]    Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. 
         [0035]    As a component of an inhaler, an atomizing assembly according to an embodiment is used to atomize liquid and to deliver the atomized liquid into the human body. The inhaler may be in the form of an electronic cigarette, a medical nebulizer, or the like. 
         [0036]    Referring to  FIG. 1  to  FIG. 3 , an atomizing assembly  100  according to one embodiment includes a housing  120  and an atomizing core  140  coupled to the housing  120 . The housing  120  defines an airflow channel  121  therein and has a reservoir  122  surrounding the airflow channel  121  for storing liquid. If the inhaler is an electronic cigarette, then the liquid stored in the reservoir  122  can be the tobacco liquid; if the inhaler is a medical nebulizer, then the liquid stored in the reservoir  122  can be the liquid medicine. 
         [0037]    Referring also to  FIG. 4  to  FIG. 6 , the atomizing core  140  includes a core body  141 , an exhaust pipe  142 , and an atomizing element (not shown in  FIG. 4  to  FIG. 6 ). The core body  141  defines an atomizing chamber  1411  therein. The core body  141  further defines an inlet  1412  and an outlet  1413  thereon in fluid communication with the atomizing chamber  1411 . The exhaust pipe  142  is located at the outlet  1413 . The atomizing element is received in the atomizing chamber  1411  and is configured to atomize the liquid. The core body  141  is partially received in the housing  120 . The core body  141  further defines a liquid absorbing hole  1414  in fluid communication with the atomizing chamber  1411  and the reservoir  122 . The atomizing element is in contact with the liquid in the reservoir  122  via the liquid absorbing hole  1414 . The exhaust pipe  142  extends at least partially into the airflow channel  121 . The exhaust pipe  142  defines a through hole  1422  on a sidewall thereof, which is in fluid communication with an interior of the exhaust pipe  142  and the airflow channel  121 . 
         [0038]    The through hole  1422  defined on the sidewall of the exhaust pipe  142  can enable the condensed liquid in the airflow channel  121  to return to the atomizing chamber  1411 , thus preventing the liquid from forming a film at an end opening of the exhaust pipe  142  due to the large viscosity and surface tension of the liquid, and the film can block the liquid from flowing back from the end opening of the exhaust pipe  142  to the atomizing chamber  1411 . The liquid will not accumulate in the airflow channel  121 , such that the problem of making noise and easily drawing fluid into the mouth by the user during use can be solved. 
         [0039]    Referring to  FIG. 2 , in one embodiment, the housing  120  can include a first tubular structure  123  and a second tubular structure  124 . The first tubular structure  123  has a diameter greater than that of the second tubular structure  124 , thus the second tubular structure  124  can be located inside the first tubular structure  123 . The first tubular structure  123  and the second tubular structure  124  can be coaxially arranged. The airflow channel  121  is formed by an interior of the second tubular structure  124 , and the reservoir  122  surrounding the airflow channel  121  for storing liquid is formed between the second tubular structure  124  and the first tubular structure  123 . An end of the reservoir  122  away from the core body  141  is sealed. The housing  120  can be made of transparent plastic, such that on the one hand it is easy to process, on the other hand, the user can observe the amount of the remaining liquid in the reservoir  122 , thus facilitating replacing the atomizing assembly  100  or refilling the reservoir  122  with liquid. 
         [0040]    Referring to  FIG. 3  to  FIG. 6 , the atomizing core  140  can include a sealing member  160 , which is sleeved on the exhaust pipe  142 . Partial exhaust pipe  142  extends out of the sealing member  160 . The sealing member  160  is located between the exhaust pipe  142  and the second tubular structure  124 , and the sealing member  160  abuts an inner sidewall of the second tubular structure  124 . By the configuration of the sealing member  160 , the liquid in the reservoir  122  is prevented from entering the airflow channel  121 . The through hole  1422  can be located at a portion of the exhaust pipe l  42  extending out of the sealing member  160  and the through hole  1422  is adjacent to the sealing member  160 . The liquid in the airflow channel  121  generally accumulates near the sealing member  160 , the configuration of through hole  1422  can enable the accumulated liquid to easily flow back to the atomizing chamber  1411 , thus the amount of the accumulated liquid can be reduced. 
         [0041]    The core body  141  and the exhaust pipe  142  can be made of plastic. In order to facilitate mold stripping during the processing, the core body  141  and the exhaust pipe  142  can be of split type. A latching boss  1424  is provided at an end of the exhaust pipe  142 , and the latching boss  1424  can be latched in the outlet  1413 . The sealing member  160  can extend to a junction of the core body  141  and the exhaust pipe  142 , thus preventing the liquid in the reservoir  122  from entering the atomizing chamber  1411  via a gap at the junction. 
         [0042]    In one embodiment, there are two opposing liquid absorbing holes  1414  defined on the core body  141 . Referring also to  FIG. 7 , the atomizing element  143  generally includes a column-like liquid-absorbing cotton  1431  and a heating wire  1432  wound on the liquid-absorbing cotton  1431 . Two liquid absorbing holes  1414  are oppositely arranged, two ends of the liquid-absorbing cotton  1431  extend through the two liquid absorbing holes  1414 , respectively to be in contact with the liquid in the reservoir  122 , thus increasing the atomizing efficiency. And the two liquid absorbing holes  1414  also can serve to fix the liquid-absorbent cotton  1431 , such that it is not necessary to introduce an additional structure for fixing the atomizing element  143 , thus the core body  141  is simple in construction and easy to process. 
         [0043]    In one embodiment, the through hole  1422  can be replaced by a notch. Referring also to  FIG. 8 , a notch  1423   a  is located at an edge of the exhaust pipe  142 . The number of the notch can be single, or plural. Referring also to  FIG. 9 , in one embodiment, the plurality of notches  1423   b  are serratedly arranged on the edge of the exhaust pipe  142 . Referring also to  FIG. 10 , in one embodiment, the notch  1423   c  may have an elongated shape and extend along an axial direction of the exhaust pipe  142 . The notch can enable the end opening of the exhaust pipe  142  not be located on a plane, such that a film is difficult to be formed which can block the return of the liquid flowing from the end opening of the exhaust pipe  142  into the atomizing chamber  1411 . In one embodiment, the notch can be positioned at other locations on the exhaust pipe  142 , as long as the notch is in fluid communication with the interior of the exhaust pipe  142  and the airflow channel  121 . Referring also to  FIG. 11 , the exhaust pipe  142  has a cylindrical shape, and the notch  1423   d  may be an elongated strip extending along the circumference of the exhaust pipe. 
         [0044]    For convenience of use, in one embodiment, the atomizing assembly  100  further includes a mouthpiece  170  located at an end of the housing  120  away from the atomizing core  140 . Referring to  FIG. 1 ,  FIG. 2 , and  FIG. 12 , in order to secure a connection between the mouthpiece  170  and the housing  120 , the atomizing assembly  100  further includes a clamping member  180 . The mouthpiece  170  defines an annular depressed latching groove  171  at an end thereof. The housing  120  is provided with an annular protruded latching portion  125  at an end thereof away from the core body  141 . The latching portion  125  matches the latching groove  171  and is engaged in the latching groove  171 , thereby connecting the mouthpiece  170  to the housing  120 . The clamping member  180  has an annular shape. The clamping member  180  is located at a junction between the mouthpiece  170  and the housing  120 , and the clamping member  180  is sleeved on an outside of the mouthpiece  170  and the housing  120 . 
         [0045]    The latching portion  125  is engaged in the latching groove  171 , thereby connecting the mouthpiece  170  to the housing  120 . The clamping member  180  is sleeved on the outside of the mouthpiece  170  and the housing  120 , thus strengthening the connection between them. There are frictions between the clamping member  180  and the mouthpiece  170 , and between the clamping member  180  and the housing  120 , such that the resistance of reverse movement between the mouthpiece  170  and the housing  120  can be increased, thus preventing them from disengaging. In addition, once the latching portion  125  is engaged in the latching groove  171 , if the atomization assembly  100  is shaken violently and an axial force is applied, the housing  120  and the mouthpiece  170  are easily disengaged from each other. However, after the configuration of the clamping member  180 , the clamping member  180  can be tightly fitted to the housing  120 , such that the housing  120  and the mouthpiece  170  are prevented from being displaced in the radial direction, thus ensuring a secured connection. Meanwhile, since the clamping member  180  can exert force on the outside of the mouthpiece  170  and the housing  120 , the engagement between the latching portion  125  and the latching groove  171  will become more tight, the friction between the latching portion  125  and an inner sidewall of the latching groove  171  can be increased, thus further increasing the resistance of reverse movement between the mouthpiece  170  and the housing  120  and securing the connection between the mouthpiece  170  and the housing  120 . 
         [0046]    In one embodiment, the mouthpiece  170  and the housing  120  may further define a groove on a portion thereof in contact with the clamping member  180  to accommodate the clamping member  180 . The clamping member  180  can be received in the groove, thus enhancing the rigidity of the clamping member  180 . 
         [0047]    In one embodiment, the number of the clamping member  180  can be plural. The plurality of the clamping members  180  have an annular shape and are coaxially arranged. In one embodiment, both of the latching portion  125  and the latching groove  171  have an annular shape. In alternative embodiments, the latching portion  125  and the latching groove  171  may have a columnar or rectangular shape. Of course, the annular latching portion  125  and the latching groove  171  can ensure a more firmly connection between the mouthpiece  170  and the housing  120 . The latching portion  125  and the latching groove  171  have annular or other shapes, and the number of the latching portion  125  and the latching groove  171  can be plural. The plurality of the latching portions  125  and the plurality of latching grooves  171  correspond to each other. The plurality of the latching portions  125  and the plurality of latching grooves  171  can further enhance the rigidity of the connection. 
         [0048]    Referring to  FIG. 13 , in one embodiment, an inner sidewall of the latching groove  171  is provided with a protruding hook  1711 , and the latching portion  125  defines a groove  1251  corresponding to the hook  1711 . The mouthpiece  170  is made of plastic, which has certain elasticity. During the engagement between the latching portion  125  and the latching groove  171 , a portion of the mouthpiece  170  provided with the hook  1711  can be deformed within a certain range, and the portion may be restored after the hook  1711  is latched in the groove  1251 . Since the clamping member  180  is sleeved on the outside of the mouthpiece  170 , the hook  1711  will not be disengaged from the groove  1251 , thus further enhancing the rigidity of the connection. Preferably, the hook  1711  is adjacent to an end of the mouthpiece  170 , which has a larger deformation range. In an alternative embodiment, the latching portion  125  and the latching groove  171  can be in an interference fit, therefore the pressure between the latching portion  125  and the inner sidewall of the latching groove  171  is increased, and the friction is increased. In addition, by the configuration of the clamping member  180 , the pressure between the latching portion  125  and the inner sidewall of the latching groove  171  is further increased, and the friction is further increased, thus the connection between the mouthpiece  170  and the housing  120  becomes secured. 
         [0049]    In alternative embodiments, the positions of the latching portion  125  and the latching groove  171  can be interchanged, i.e., the latching portion  125  can be located at the end of the mouthpiece  170 , while the latching groove  171  is defined at the end of the housing  120 , the connection effect of them are the same. In this embodiment, the mouthpiece  170  is located at the end of the housing  120  away from the atomizing core  140 , and the protruded latching portion  125  is located at the end of the mouthpiece, the depressed latching groove  171  is defined at the end of the housing  120  away from the core body  141 . The latching portion  125  matches the latching groove  171  and is engaged in the latching groove  171 , thereby connecting the mouthpiece  170  to the housing  120 . The clamping member  180  has an annular shape. The clamping member  180  is located at the junction between the mouthpiece  170  and the housing  120 , and the clamping member  180  is sleeved on an outside of the mouthpiece  170  and the housing  120 . Preferably, the latching portion  125  and the latching groove  171  are both annular. Preferably, the inner sidewall of the latching groove  171  is provided with the protruding hook  1711 , and the latching portion  125  defines the groove  1251  corresponding to the hook  1711 . Preferably, the hook  1711  is adjacent to an end of the mouthpiece  170 . 
         [0050]    The clamping member  180  can be made of metal, such as brass. Brass is an alloy containing copper and zinc, it has a high strength, large hardness, and improved wear resistance. The brass also has a prominent mechanical property during processing and a low cost. Of course, in alternative embodiments, the mouthpiece  170  can be formed by an end of the housing  120  away from the core body  141 , i.e., the housing  120  and the mouthpiece  170  are integrated formed, thus the clamping member  180  can be omitted. 
         [0051]    Referring also to  FIG. 3  and  FIG. 14 , in one embodiment, the atomizing assembly  100  further includes a connecting member  190  and a support member  210 . The connecting member  190  is connected to the core body  141  and includes an annular sheath portion  1911 , which is tightly sleeved on an outside of the housing  120 . The support member  210  has an annular shape and is located in the reservoir  122 . The support member  210  abuts an inner sidewall of the first tubular structure  123 , and the support member  210  is located corresponding to the sheath portion  1911 . In one embodiment, the housing  120  is provided with a stepped portion  126  on an outside thereof. The stepped portion  126  is latched with the sheath portion  1911 , therefore on the one hand, it is convenient for the connecting member  190  to be positioned, i.e., it is convenient to determine whether the connecting member  190  is already in a preset position; on the other hand, the outer sidewall of the sheath portion  1911  may be coplanar with the outer sidewall of the housing  120 , thus the atomizing element  100  has a overall flat appearance. 
         [0052]    The connecting member  190  can be used to connect the atomizing assembly  100  to the other components of the inhaler. The support member  210  can reinforce the connection between the connecting member  190  and the housing  120 . The support member  210  is a rigid support element. The first tubular structure  123  of the housing  120  is clamped between the support member  210  and the sheath portion  1911 . The sheath portion  1911  is tightly sleeved on the outside of the first tubular structure  123 , and the sheath portion  1911  is in close contact with an end of the first tubular structure  123 . If the support member  210  is not provided, the end of the first tubular structure  123  is easily deformed by pressing for a long time, such that the connection is easily loosened. In the illustrated embodiment, the support member  210  is received in the interior of the first tubular structure  123 , thus the end of the first tubular structure  123  will not be deformed, such that the fixing connection between the connecting member  190  and the housing  120  will become more secured. Even if the inhaler falls to the ground, the connecting member  190  and the housing  120  will not be disengaged. 
         [0053]    The hardness of the support member  210  is generally greater than that of the housing  120 . The support member  210  is preferably a steal ring formed by stretching a profile, for it has a low price. The steal ring is easy to be processed to be thin, such as having a thickness of 0.2 mm. The steal ring requires occupying space in the reservoir  122 , thus the smaller the volume of the steel ring, the smaller the effect to the volume of the reservoir  122 . If the inhaler is an electronic cigarette, the liquid in the reservoir  122  is less corrosive to the steel ring, however, if the inhaler is a medical nebulizer, the liquid medicine may corrode the steal ring. The outer circumference of the steel ring may be provided with a spacer or may be coated with an isolation paint to prevent the steel ring from chemically reacting with the liquid in the reservoir  122 . 
         [0054]    Referring also to  FIG. 3  and  FIG. 15 , further in one embodiment, the connecting member  190  can include a first connecting member  191  and a second connecting member  192 . The sheath portion  1911  can be located on the first connecting member  191 . The first connecting member  191  is provided with an inner screw thread, and the second connecting member  192  is provided with an outer screw thread engaging the inner screw thread of the first connecting member  191 . The first connecting member  191  is threadedly connected the second connecting member  192 . The second member  192  is also provided with an inner screw thread, the core body  141  is provided with an outer screw thread engaging at least partial inner screw thread of the second connecting member  192 . The second connecting member  192  is threadedly connected to the core body  141 , thus fixing the core body  141  to the housing  120 . 
         [0055]    Partial inner screw thread of the second connecting member  192  can be threadedly connected to the power source assembly of the inhaler. In one embodiment, the inner screw thread of the second connecting member  192  includes two segments. One segment of the second connecting member  192  is configured to be threadedly connected to the core body  141 , the other segment of the second connecting member  192  is configured to be threadedly connected to the power source assembly. Since the first connecting member  191  and the second connecting member  192 , the second connecting member  192  and the core body  141  are threadedly connected, such that the core body  141  can be easily assembled or disassembled, thus facilitating replacing the core body  141  or filling liquid to the reservoir. Therefore the atomization assembly  100  can be reused, thus reducing cost. 
         [0056]    In the aforementioned embodiments, the first connecting member  191  is connected to the housing  120  by configuring the sheath portion  1911 , besides that, in alternative embodiments, the fixing connection between the first connecting member  191  and the housing  120  can be in other forms. One fixing connection can be a threaded connection, e.g., the housing  120  is provided with an outer screw thread, and the first connecting member  191  is provided with an inner screw thread matching the outer screw thread. Alternatively, the housing  120  is provided with an inner screw thread, and the first connecting member  191  is provided with an outer screw thread matching the inner screw thread, such that the first connecting member  191  is threadedly fixed to the housing  120 . Another fixing connection between the first connecting member  191  and the housing  120  can be implemented via a screw, e.g., both of the first connecting member  191  and the housing  120  define screw holes, and the first connecting member  191  and the housing  120  are fixed via the screw extending through the corresponding screw holes. Another fixing connection between the first connecting member  191  and the housing  120  can be implemented via a snap, e.g., the housing  120  is provided with a snapping portion, and the first connecting member  191  defines a snapping groove corresponding to the snapping portion. Alternatively, the first connecting member  191  is provided with a snapping portion, and the housing  120  defines a snapping groove corresponding to the snapping portion. The snapping portion is engaged in the snapping groove, such that the first connecting member  191  is fixed to the housing  120 . In an alternative embodiment, the first connecting member  191  and the housing  120  are integrated formed. 
         [0057]    Further, Referring to  FIG. 3  and  FIG. 15 , in one embodiment, the second connecting member  192  may include a first portion  1921 , a second portion  1922 , and a third portion  1923 , which are successively connected to each other. The first portion  1921 , the second portion  1922 , and the third portion  1923  are hollow cylinders. The first portion  1921 , the second portion  1922 , and the third portion  1923  are coaxially arranged. The first portion  1921  has a diameter less than that of the second portion  1922 , and the second portion  1922  has a diameter less than that of the third portion  1923 . The first portion  1921  is threadedly connected to the core body  141 , and an end of the first portion  1921  abuts an annular flange  144 . The second portion  1922  is threadedly connected to the first portion  1921 , and an end of the first connecting member  1921  abuts the third portion  1923 . 
         [0058]    In one embodiment, a sealing ring  220  is provided between the second connecting member  192  and the core body  141 , so as to prevent leakage of the liquid from a gap between the second connecting member  192  and the core body  141 . Referring also to  FIG. 4  to  FIG. 6 , furthermore, the atomizing core  140  can include an annular flange  144 , which is fixed on the core body  141 . The annular flange  144  abuts the end of the second connecting member  192 . The sealing ring  220  is positioned at a corner between the annular flange  144  and the core body  141  adjacent to the second connecting member  192 . The sealing ring  220  abuts the annular flange  144 , the core body  141 , and the second connecting member  192  at the same time. By configuring the sealing ring  220  at this position, a better sealing effect can be obtained. Meanwhile, since the annular flange  144  abuts the end of the second connecting member  192 , when the second connecting member  192  rotates, it can prevent the screw thread from being damaged due to excessive force. In a preferable embodiment, a sealing member  230  is provided between the first connecting member  191  and the second connecting member  192 , thus preventing leakage of the liquid from a gap between the first connecting member  191  and the second connecting member  192 . The sealing member  230  is positioned at a corner of the second portion  1922  and the third portion  1923 , such that the sealing member  230  abuts the second portion  1922 , the third portion  1923 , and the first connecting member  191  at the same time. By configuring the sealing ring  230  at this position, a better sealing effect can be obtained. 
         [0059]    The foregoing sealing ring can fit the atomizing core  140  and the connecting member  190 , thus the reservoir  122  is effectively sealed. Even if the atomizing core  140  is assembled or disassembled for a plurality of times, the sealing performance of the atomizing assembly  100  as a whole will not be affected. 
         [0060]    The atomizing assembly  100  is normally connected to the power source assembly of the inhaler, the power source assembly is electrically coupled to the atomizing element  143  to provide power for atomization. In one embodiment, the core body  141  and the second connecting member  192  are both conductors, a negative lead of the atomizing element  143  is electrically coupled to the core body  141 , the core body  141  is electrically coupled to the second connecting member  192 , the second connecting member  192  is electrically coupled to the power source assembly. The voltage required by the atomizing element  143  is generally low and the current is small, the negative electrode of the power source can be in contact with the user. 
         [0061]    Further, referring to  FIG. 3  to  FIG. 6  and  FIG. 16 , in one embodiment, the atomizing assembly  100  further includes an inlet tube  240  and an insulating sleeve  250 . The inlet tube  240  is a conductor, which is located at the inlet  1412  of the core body  141 . The inlet tube  240  is configured to be electrically coupled to the power source assembly. Preferably, the inlet tube  240  defines a ventilation slot  241  at an end thereof, such that the problem that air cannot enter the atomizing core when the end of the inlet tube  240  abuts the power source assembly can be solved. The insulating sleeve  250  is located between the inlet tube  240  and the inner sidewall of the core body  141 , thus isolating the inlet tube  240  from the core body  141 . The insulating sleeve  250  is generally made of silicone material having elasticity, thus it also has a sealing function. The positive lead wire can be located between the inlet tube  240  and the insulating sleeve  250 , and the positive lead wire is electrically coupled to the inlet tube  240 . The negative lead wire can be located between the insulating sleeve  250  and the inner wall of the core body  141 , and the negative lead wire is electrically coupled to the core body  141 . The insulating sleeve  250  has elasticity and can press the lead wire, thus ensuring connection reliability. 
         [0062]    In one embodiment, the inhaler includes the power source assembly  300  shown in  FIG. 17  and  FIG. 18 , and the atomizing assembly  100  shown in  FIG. 1  to  FIG. 16 . The power source assembly  300  can be fixed to the atomizing assembly  100 , and the power source assembly  300  is electrically coupled to the atomizing assembly  100 . The inhaler is used to atomize the liquid, and to deliver the atomized liquid into the human body. The inhaler can be an electronic cigarette, or a medical nebulizer and the like. 
         [0063]    The sidewall of the exhaust pipe  142  defines the through hole  1422  in fluid communication with the interior of the exhaust pipe  142  and the airflow channel  121 . The through hole  1422  can enable the condensed liquid in the airflow channel  121  to return to the atomizing chamber  1411 , thus preventing the liquid from forming a film at an end opening of the exhaust pipe  142  due to the large viscosity and surface tension of the liquid, and the film can block the liquid from flowing back from the end opening of the exhaust pipe  142  to the atomizing chamber  1411 . The liquid will not accumulate in the airflow channel  121 , such that the problem of making noise and easily drawing fluid into the mouth by the user during use can be solved. 
         [0064]    In one embodiment, the power source assembly  300  includes a main body  310 , a power switch  320 , a positive electrode connecting portion  330 , and a negative electrode connecting portion  340 . The negative electrode connecting portion  340  is connected to the main body  310 , the positive electrode connecting portion  330  is provided with an outer screw thread, which can be adapted to the inner screw thread of the second connecting member  192  of the atomizing assembly  100 , such that the negative electrode connecting portion  340  is threadedly connected to the second connecting member  192 . The power source assembly  300  and the atomizing assembly  100  can be easily assembled and disassembled. Therefore, when the power source assembly  300  is short of power, the power source assembly  300  can be replaced or charged by disassembly. When the liquid in the atomizing assembly  100  is insufficient, it can be replaced in time. 
         [0065]    The positive electrode connecting portion  330  can be located at a middle portion of the negative electrode connecting portion  340 . An insulating spacer or an insulating layer is provided between the positive electrode connecting portion  330  and the negative electrode connecting portion  340 , alternatively, the positive electrode connecting portion  330  is not in contact with the negative electrode connecting portion  340 . After the negative electrode connecting portion  340  is threadedly connected to the the second connecting member  192 , the positive electrode connecting portion  330  can abut and be electrically coupled to the inlet tube  240  of the atomizing assembly  100 . There is a relatively large contact area between the positive electrode connecting portion  330  and the atomizing assembly  100 , thereby improving the reliability of the positive electrode electrical connection. The power switch  320  can be located on the main body  310 . The circuit conduction can be controlled through the switch, thus it is convenient to use. The user can turn off the power at any time, thus saving power. 
         [0066]    Although the description is illustrated and described herein with reference to certain embodiments, the description is not intended to be limited to the details shown. Modifications may be made in the details within the scope and range equivalents of the claims.