Patent Publication Number: US-2023157360-A1

Title: Aerosol cartridge with air-liquid channel

Description:
TECHNICAL FIELD 
     The present application relates to the technical field of an aerosol cartridge with an air-liquid channel, and more particularly to an aerosol cartridge with an air-liquid channel in the application field such as liquid electric mosquito-repellent incense, electric aromatherapy, electronic cigarettes and drug solution atomization. 
     BACKGROUND 
     The technology for dissipation liquid by ultrasonic atomizing or electric heating is widely used in the field of liquid mosquito-repellent incense, aromatherapy and electronic cigarettes. In the field of liquid mosquito-repellent incense and aromatherapy, core rods are used to siphon liquid to the top, and the liquid at the top of the core rod is vaporized by heater atomizing or ultrasonic atomizing in the traditional methods. For high viscosity liquids such as essential oils, the velocity of the siphoning liquid to the top of the core rod is generally difficult to follow the atomization speed of the liquid, so this technology requires a large number of organic solvents to dilute the active ingredient with higher viscosity to increase the siphon speed of the liquid. The use of a large number of organic solvents not only wastes resources, but also harmful to human health. If the concentrated solution with higher viscosity can be directly dissipated, not only the waste of resources can be reduced, but also the device can be miniaturized, so that an aerosol cartridge with an air-liquid channel is more beautiful and more convenient to carry. 
     When using traditional tobacco, it has a greater impact on health when inhaling the harmful substances such as tar during tobacco burning. Electronic cigarettes employ atomization to inhale nicotine or nicotine salts, which does not produce tar. A common technology of electronic cigarettes is to heat the atomizing core which is directly connected to the cigarette oil, so that the nicotine and the solvent are atomized together. In this technology, it is prone to leak the cigarette oil due to the lack of precise control for the conducting of cigarette oil, and the consumption experience is poor. 
     SUMMARY 
     In order to solve the technical problems in the related art, the present invention discloses an aerosol cartridge with an air-liquid channel, the aerosol cartridge includes: a liquid storage element, an atomizer and an air-liquid channel. The liquid storage element and the atomizer are communicated by the air-liquid channel. The air-liquid channel comprises at least one fluid channel axially penetrating the air-liquid channel, and the air-liquid channel further comprises a fluid core. 
     Further, the maximum inscribed circle diameter of the smallest cross-section among the fluid channels is 0.05 mm to 1 mm. 
     Further, the air-liquid channel is directly communicated with the atomizer. 
     Further, a buffer liquid storage is provided in an atomizing chamber. 
     Further, the air-liquid channel is communicated with the atomizer by the buffer liquid storage. 
     Further, the buffer liquid storage is made of fibers or sponges. 
     Further, the buffer liquid storage includes a buffer liquid storage high-density portion and a buffer liquid storage low-density portion. 
     Further, the atomizing chamber is provided with an air-inlet hole. 
     Further, the aerosol cartridge includes a condensate absorbing element. 
     Further, the fluid core is made of fiber by bonding. 
     An aerosol cartridge with an air-liquid channel according to the present invention is suitable for the dissipation of various liquids, such as atomization dissipation of electronic cigarettes liquid, atomization dissipation of cannabidiol, atomization dissipation of drug solution, and is also suitable for the dissipation of the liquid from electric mosquito-repellent incense or electric aromatherapy. The aerosol cartridge with the air-liquid channel according to the present invention can uniformly control the dissipation of liquids, has a good leak-proof property, makes the structure complicated, and has a large amount of carrier liquid. These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       One or more embodiments are illustrated by way of example with reference to the pictures in the corresponding drawings, which do not constitute a limitation on the embodiments, elements having the same reference numerals in the accompanying drawings are represented as similar elements, unless specifically stated, the figures in the drawings do not constitute a proportion limitation. 
         FIG.  1   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the first embodiment of the present invention. 
         FIG.  1 B  shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the first embodiment. 
         FIG.  1   c    shows another schematic cross-sectional view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the first embodiment. 
         FIG.  2   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the second embodiment of the present invention. 
         FIG.  2   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the second embodiment. 
         FIG.  2   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the second embodiment. 
         FIG.  3   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the third embodiment of the present invention. 
         FIG.  3   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the third embodiment. 
         FIG.  4   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the fourth embodiment of the present invention. 
         FIG.  4   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fourth embodiment. 
         FIG.  4   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fourth embodiment. 
         FIG.  5   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the fifth embodiment of the present invention. 
         FIG.  5   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fifth embodiment. 
         FIG.  5   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fifth embodiment. 
         FIG.  6   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the sixth embodiment of the present invention. 
         FIG.  6   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the sixth embodiment. 
         FIG.  6   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the sixth embodiment. 
         FIG.  7   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the seventh embodiment of the present invention. 
         FIG.  7   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the seventh embodiment. 
         FIG.  7   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the seventh embodiment. 
         FIG.  8   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the eighth embodiment of the present invention. 
         FIG.  8   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the eighth embodiment. 
         FIG.  8   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the eighth embodiment. 
         FIG.  9   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the ninth embodiment of the present invention. 
         FIG.  9   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the ninth embodiment. 
         FIG.  9   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the ninth embodiment. 
         FIG.  9   d    shows a schematic cross-sectional view of a second air-liquid channel in the aerosol cartridge with the air-liquid channel according to the ninth embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily understand other advantages and functions of the present invention from the disclosure of the present invention. 
     Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings; however, the invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of providing a detailed and complete disclosure of the present invention, and fully conveying the scope of the invention to those skilled in the art. The terminology shown in the exemplary embodiments in the drawings is not intended to be limiting of the present invention. In the drawings, the same elements/components generally use the same or similar reference numerals. 
     As used herein, the terms including scientific and technical terms have the meanings commonly understood to one skilled in the art, unless otherwise indicated. In addition, it is to be understood that a term defined in commonly used dictionaries should be understood to have a consistent meaning in the context of its associated domain and should not be interpreted as an idealized or overly formal meaning. 
     The First Embodiment 
       FIG.  1   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the first embodiment of the present invention;  FIG.  1 B  shows a schematic cross-sectional view of the air-liquid channel in the aerosol cartridge with an air-liquid channel according to the first embodiment;  FIG.  1   c    shows another schematic cross-sectional view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the first embodiment. 
     As shown in  FIG.  1   a   ,  FIG.  1 B  and  FIG.  1   c   , an aerosol cartridge with an air-liquid channel according to the first embodiment of the present invention, the aerosol cartridge  800  comprises: a liquid storage element  100 , an atomizer and an air-liquid channel  830 . The liquid storage element  100  is communicated with the atomizer by the air-liquid channel  830 . The air-liquid channel  830  comprises at least one fluid channel  831  axially penetrating the air-liquid channel  830 , and the air-liquid channel  830  further comprises a fluid core  832 . 
     &lt;The Liquid Storage Element&gt; 
     In the aerosol cartridge  800  according to the present invention, the liquid storage element  100  is a component that store the liquid to be dissipated. Depending on the purpose of the application, the liquid storage element  100  can store different liquids, such as essential oil for aromatherapy, or mosquito repellent for liquid mosquito-repellent incense, cigarette oil for electronic cigarettes, cannabidiol solutions, or drug solution for aerosol, and the like. The liquid storage element  100  can have various cross-sectional shape, such as a circular shape, an elliptical shape, a long square shape, or the like, or may be a combination of various geometric shapes. The liquid stored in the liquid storage element  100  can be injected from the air-liquid channel, or an upper cover is provided on the liquid storage element  100 , and the upper cover is closed after the liquid is filled. 
     The aerosol cartridge  800  further comprises an aerosol cartridge housing  810 , the aerosol cartridge housing  810  is provided with a bottom plate  815  and a top plate  818 , and the top plate  818  is provided with a top-plate aerosol hole  819 . The liquid storage element  100  is disposed in the aerosol cartridge housing  810 . 
     The liquid storage element  100  can have a liquid storage element through-hole  130  which axially penetrates through the liquid storage element  100 . The liquid storage element through-hole  130  can be used as an aerosol channel for the aerosol cartridge  800 . 
     The aerosol channel communicates with the atomizing chamber  934  and the top plate aerosol hole  819 , and its function is to lead out the aerosol in the atomizing chamber  934  to the top plate aerosol hole  819 . The aerosol channel can be integrally formed with the liquid storage element  100 , the liquid storage element through-hole  130  is used as the aerosol channel and can also be assembled into the aerosol cartridge  800  which formed by plastic, metal, ceramic, glass or the like separately. 
     The top plate aerosol hole  819  is a component that the aerosol escapes from the aerosol cartridge  800  after the dispersed liquid is vaporized or atomized. The top plate aerosol hole  819  may be made of plastic, ceramic, or metal, or the like. The top plate aerosol hole  819  is in communication with the atomizing chamber  934  through an aerosol channel. If the application of the aerosol cartridge  800  is an electronic cigarette, an oil-absorbing cotton which is a porous material that can absorb the condensate can be arranged at the aerosol channel or the top plate aerosol hole  819 . After the liquid in the electronic cigarettes is atomized, the aerosol will be partially condensed and forms a condensate when passing through the aerosol channel, the oil-absorbing cotton can absorb the condensate in the aerosol before the aerosol enters the user&#39;s mouth, thereby improving the smoking experience. 
     &lt;Atomizing Unit&gt; 
     An atomizing unit according to the present invention comprises the atomizing chamber  934  and the atomizer, the atomizing chamber  934  is a cavity in which the liquid is vaporized or atomized. In the present embodiment, the atomizing chamber  934  is provided at an area between the bottom of the liquid storage element  100  and the bottom plate  815 . The atomizer is provided in the atomizing chamber  934  and the atomizing chamber  934  may be provided with an air-inlet hole as required, for example, a bottom plate through-hole  816  as an air-inlet hole is provided on the bottom plate  815 . The liquid in the atomizing chamber  934  is vaporized or atomized by the atomizer and leads out of the aerosol cartridge  800  via the liquid storage element through-hole  130  and the top plate aerosol hole  819 . 
     The atomizer of the present invention generally refers to components that can vaporize or atomize the liquid according to application requirements. The atomizer comprises a heating core  930 , such as a heating wire wound with glass fiber or cotton, a porous ceramic pre-embedded with a heating wire, a ceramic printed with a thick film heater, and the like. The atomizer may further comprise a wicking element  200 , such as glass fiber or cotton wound by a heating wire, non-woven fabric wrapping in the porous ceramic of the pre-embedded heating wire, and the like. 
     The atomizer further comprises a wire  933 , and the atomizer is connected to a power source (not shown) via the wire  933 . 
     The atomizer may take the form of electric heating: for example, the heating wire is wound with glass fiber or cotton rope, or cotton or cotton non-woven fabric is wound on the heating wire, or the heating wire is pre-embedded in the ceramic, or a thick film heater is printed on the ceramic surface, or a positive temperature coefficient ceramic heater is used; or an ultrasonic atomizer or other types of atomizers may be used. Depending on the application requirements, the atomizer can be made in various shapes suitable for assembly. 
     A supporting member  935  may be provided at the bottom of the atomizing chamber  934 , and the supporting member  935  can be made of a material such as silica gel to strengthen the contact communication between the air-liquid channel  830  and the atomizer. 
     Liquid leakage occurs due to the abnormal conditions of the aerosol cartridge  800  during storage, transportation or use. The support component  935  may be designed to be made of a material with both buffering and liquid storage functions, while the atomizing chamber  934  may also be designed to store part of the liquid, which can accommodate the liquid conducted from the liquid storage element  100 , thereby avoiding the leakage of the liquid to the outside. 
     When necessary, a buffer liquid storage (not shown) may be provided in the atomizing chamber  934 , the air-liquid channel  830  and the atomizer may be respectively in communication with the buffer liquid storage. The buffer liquid storage may store part of the liquid conducted from the liquid storage element  100 , and also conduct the liquid between the air-liquid channel  830  and the atomizer. When abnormal conditions occur during storage, transportation or usage of the aerosol cartridge  800 , the buffer liquid storage can absorb the liquid conducted from the liquid storage element  100 , thereby reducing the risk of liquid leakage to the outside. The supporting member  935  and the buffer liquid storage may be made of fibers, and the fibers may be natural fibers such as cotton, or modified products of natural fibers such as cellulose acetate fibers and may also be synthetic fibers such as polyester fibers, polylactic acid fibers, sheath-core structure polyethylene/polypropylene bicomponent fibers, and the like. The fibers may be bonded to the buffer liquid storage with a desired shape, which facilitating the buffer liquid storage to assemble into the aerosol cartridge  800 . In addition, the supporting member  935  and the buffer liquid storage can also be made of sponge, such as polyurethane sponge, polyvinyl alcohol sponge, and the like. The buffer liquid storage may be provided with a high-density portion and a low-density portion, so as to better control the conduction of the liquid from the liquid storage element  100  and improve the liquid leak-proof capability. 
     &lt;Air-Liquid Channel&gt; 
     In the present embodiment, the liquid storage element  100  is communicated with the atomizer by the air-liquid channel  830 . As shown in  FIG.  1 B  and  FIG.  1   c   , the air-liquid channel  830  includes at least one fluid channels  831  axially penetrating the air-liquid channel  830 , and the air-liquid channel  830  further includes a fluid core  832 . The air-liquid channel  830  is provided in the atomizing chamber  934 . 
     One structure of the air-liquid channel  830  is shown in  FIG.  1 B . this air-liquid channel  830  includes an air-liquid channel outer tube  834 , a fluid core  832  provided in the air-liquid channel outer tube  834 , an air-liquid channel reinforcing rib  833  provided between the air-liquid channel outer tube  834  and the fluid core  832 , and fluid channels  831  separated by the air-liquid channel reinforcing rib  833 . 
     Another structure of the air-liquid channel  830  is shown in  FIG.  1   c   . This air-liquid channel  830  includes an air-liquid channel outer tube  834 , a fluid core  832  provided in the air-liquid channel outer tube  834 , and fluid channels  831 . The air-liquid channel outer tube  834  is closely matched with the fluid core  832 , and a plurality of grooves axially penetrating the air-liquid channel  830  are formed on the outer peripheral portion of the fluid core  832 , the grooves together with the air-liquid channel outer tube  834  form the fluid channels  831 . 
     The fluid channels  831  can be used as air channels or liquid channels, at least one of the fluid channels  831  is used as an air channel. In an equilibrium state, the fluid core  832  absorbs sufficient liquid, and the liquid on the peripheral surface of the fluid core  832  will seal the air channel. When the liquid is conducted from the liquid storage element  100 , the vacuum degree in the liquid storage element  100  is increased, the liquid that seals the air channel is absorbed by the fluid core  832 , the liquid sealing of some or all of the fluid channels  831  disappears, the air in the atomizing chamber  934  enters into the liquid storage element  100  through the air channel, and when the vacuum degree in the liquid storage element  100  is reduced to the equilibrium state, the air channel is re-sealed by the liquid. 
     The maximum inscribed circle diameter of the smallest cross-section among the fluid channels  831  is 0.05 mm to 1 mm, and “mm” herein refers to millimeters. When the fluid channel  831  with a smaller inscribed circle diameter is used as the air channel, the liquid sealing capability is stronger, and it is suitable for applications with lower viscosity and smaller liquid outlet. When the fluid channel  831  with a larger inscribed circle diameter is used as the air channel, the liquid sealing capability is weaker, and it is suitable for applications with higher viscosity or larger liquid outlet. Depending on the nature of the liquid and application requirements, the maximum inscribed circle diameter of the smallest cross-section among the fluid channels  831  is 0.05 mm to 1 mm, such as 0.05 mm, 0.08 mm, 0.2 mm, 0.5 mm, 0.6 mm, 0.8 mm, 1 mm. In the equilibrium state, the air channel is sealed by the liquid on the peripheral surface of the fluid core  832  due to capillary forces. 
     The air-liquid channel  830  may be directly communicated with the atomizer, or the atomizer is indirectly communicated with the air-liquid channel through the buffer liquid storage, so that the liquid is transferred from the liquid storage element  100  to the atomizer through the air-liquid channel. In general, the fluid core  832  is used as the liquid channel, and the fluid core  832  is made of fiber by bonding, for example, bonding the polyester fibers to the fluid core  832  with a binder, or thermally bonding the bicomponent fibers to the fluid core  832 , etc. In the present embodiment, the fluid core  832  may participate in constituting the air channel. 
     When the liquid is atomized, the liquid is continuously supplemented from the liquid storage element  100  to the atomizer or its surroundings through the air-liquid channel  830 . When the external control device instructs the atomizer to work, the liquid in the atomizer is atomized, and the aerosol is leaded out of the aerosol cartridge  800  via the aerosol channel and the top-plate aerosol hole  819 , meanwhile the liquid in the liquid storage element  100  is conducted and supplemented to the atomizer through the liquid channel of the air-liquid channels  830 . As the liquid of conduction, when the vacuum degree in the liquid storage element  100  rises to a certain extent, the liquid sealing of the air channel of the air-liquid channels  830  is opened, the air in the atomizing chamber  934  enters into the liquid storage element  100  through the air channel, so that the vacuum degree in the liquid storage element  100  is reduced, the air channel is re-sealed by the liquid. The above process is repeatedly performed so that the atomization process can continually proceed until the liquid in the liquid storage element  100  is exhausted. 
     The Second Embodiment 
       FIG.  2   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the second embodiment of the present invention;  FIG.  2   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the second embodiment;  FIG.  2   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the second embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     In the present embodiment, the cross-section and the profile of the air-liquid channel  830  are shown in  FIG.  2   b    and  FIG.  2   c   , respectively. The bottom of the liquid storage element  100  is provided with a short air-liquid channel outer tube  834 , the fluid core  832  is inserted into the air-liquid channel outer tube  834 , three air-liquid channel reinforcing ribs  833  are provided between the fluid core  832  and the air-liquid channel outer tube  834 . The inner wall of the air-liquid channel outer tube  834 , the air-liquid channel reinforcing ribs  833  and the outer wall of the liquid core  832  are formed a fluid channel  831 . The maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 0.5 mm. The fluid channel  831  can be used as an air channel, and the fluid core  832  can be used as an liquid channel. 
     The atomizer comprises a heating core  930  and a wicking element  200 . The heating core  930  is a heating wire, and the wicking element  200  is a glass fiber bundle or a cotton rope, and the heating wire is partially wound with the glass fiber bundle or the cotton rope. The wicking element  200  is in direct contact with the air-liquid channel  830  in the atomizing chamber  934 , so that the liquid can be directly conducted from the liquid storage element  100  to the wicking element  200  of the atomizer through the air-liquid channel  830 . 
     In the present embodiment, the atomizing chamber  934  is further provided with a supporting member  935  for supporting the atomizer. After the two ends of the wicking element  200  are bent, the two ends are supported by the supporting member  935 . 
     The aerosol cartridge  800  of the present embodiment is suitable for applications such as electronic cigarettes, and the conduction of the liquid and atomization principle is similar to that of the first embodiment, and the details will not be repeated in the description of this embodiment. 
     The supporting member  935  of the present embodiment is made of silica gel, and the supporting member  935  is designed to have a special shape, for example, the profile view of the supporting member  935  is two symmetrical “L” shapes, so that the atomizing chamber  934  forms “depression”. When the aerosol cartridge  800  encounters an abnormal fluctuation of the external environment during storage, transportation, and usage, a small amount of liquid may be conducted from the liquid storage element  100  through the liquid channel and temporarily stored in the “depression” of the atomizing chamber  934 , which will reduce the risk of liquid leakage. When the liquid in the atomizer is consumed, the liquid temporarily stored in the depression of the atomizing chamber  934  will be consumed preferentially, so that the liquid will not remain in the atomizing chamber  934 . 
     The aerosol cartridge  800  may include a condensate absorbing element  400 . In the present embodiment, as shown in  FIG.  2   a   , the condensate absorbing element  400  can be provided between the top plate  818  and the liquid storage element  100 , which can absorb the condensate in the aerosol, and further improve the user experience. 
     The aerosol cartridge  800  of the present embodiment is provided as a contacting connection end at the end of the wire  933 , so that the aerosol cartridge  800  can be connected with the control device in a contact manner when in use. In order to be suitable for different liquid viscosities, surface tension and different atomization speed requirements, the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  can be set to less than 0.5 mm, such as 0.08 mm or 0.25 mm, or greater than 0.5 mm, such as 0.8 mm or 1 mm. Meanwhile, factors such as the cross-sectional area and porosity of the fluid core  832  serving as the liquid channel can also be set to increase or reduce the liquid guiding speed. Of course, the atomization speed is also related to factors such as the size of the glass fiber bundle and heating power and the like. 
     The Third Embodiment 
       FIG.  3   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the third embodiment of the present invention;  FIG.  3   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the third embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     As shown in  FIG.  3   a   , the atomizer of the present embodiment includes a heating core  930  and a wicking element  200 , the heating core  930  is a positive temperature coefficient thermistor heater (PTC heater for short), and the wicking element  200  is made of glass fiber, cotton or polyester fibers and the like. The air-liquid channel  830  of the present embodiment is similar to that of the second embodiment, and the cross-section of that is shown in  FIG.  3     b.    
     If the liquid is a low-viscosity essence solution, the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is set to 0.05 mm; if the liquid is a higher-viscosity essential oil or mosquito repellent. etc, the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  may be set to 0.1 mm, 0.2 mm, 0.5 mm, or even 1 mm, so that the air can smoothly enter into the liquid storage element  100  when the liquid is conducted. 
     The present embodiment is particularly suitable for a portable aerosol cartridge  800  such as a miniature aromatherapy and miniature liquid mosquito-repellent incense. In order to simplify the structure, the upper end of the liquid storage element  100  can be used as the top plate. The heating core  930  can also be fixed in the external control device, so as to reuse the heating core  930  and reduce the using cost. 
     The Fourth Embodiment 
       FIG.  4   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the fourth embodiment of the present invention;  FIG.  4   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fourth embodiment;  FIG.  4   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fourth embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     As shown in  FIG.  4   a    to  FIG.  4   c   , a fluid core  832  with an axial groove on the outer peripheral wall is inserted into a short tube at the bottom of the liquid storage element  100  to form an air-liquid channel  830 , and the short tube forms an air-liquid channel outer tube  834 . As shown in  FIGS.  4   b  and  4   c   , a channel formed by the groove of the fluid core  832  and the inner wall of the short tube at the bottom of the liquid storage element  100  forms a fluid channel  831 , and the fluid core  832  serving as the liquid channel is made of fiber by bonding. The maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 0.2 mm, and if the liquid viscosity is higher, the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  can be appropriately increased. 
     In the present embodiment, a buffer liquid storage  835  is provided in the atomizing chamber  934 , which is made of fiber or sponge, for example, is made of polyurethane sponge or sheath-core structure polyethylene/polypropylene bicomponent fibers by bonding. The air-liquid channel  830  is in communication with the atomizer through the buffer liquid storage  835 . The additional benefit brought by the buffer liquid storage  835  is that the atomizer can more stably obtain the liquid, improve the stability of the atomization, and improve the user experience. The buffer liquid storage  835  partially saturated with the liquid absorption still has partial liquid absorption performance, so that the aerosol cartridge  800  has a better leak-proof performance. 
     When the present embodiment is used in electronic atomization cigarettes, the advantage is that the buffer liquid storage  835  has sufficient contact with the wicking element  200 . If it is rapidly atomized in a short period of time (commonly known as “taking a deep smoke”), the liquid in the buffer liquid storage  835  can be rapidly supplemented to the wicking element  200 , so that the risk that the wicking element  200  of the atomizer is burnt due to temporary lack of liquid is reduced. In the present embodiment, a condensate absorbing element  400  is provided at the upper end of the aerosol channel, which is used to absorb the condensate in the aerosol and improve the use experience. 
     The Fifth Embodiment 
       FIG.  5   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the fifth embodiment of the present invention;  FIG.  5   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fifth embodiment;  FIG.  5   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the fifth embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     As shown in  FIG.  5   a   , a fluid core  832  with an axial groove on the outer peripheral wall is inserted into a short tube at the bottom of the liquid storage element  100  to form an air-liquid channel  830 , and the short tube forms an air-liquid channel outer tube  834 . As shown in  FIGS.  5   b  and  5   c   , the fluid core  832  is a liquid channel, a channel formed by the groove of the fluid core  832  and the inner wall of the air-liquid channel outer tube  834  is a fluid channel  831 , and the fluid channel  831  is used as an air channel. The maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 1 mm and is suitable for the atomization of high-viscosity liquids, such as the atomization of cannabidiol. If the liquid viscosity is lower, the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  can be appropriately reduced, such as 0.8 mm or 0.6 mm. In the present embodiment, a supporting member  935  made of polyurethane sponge or cotton. etc is provided at the bottom of the atomizing chamber  934 , and the supporting member  935  has the function of buffering liquid storage. 
     The Sixth Embodiment 
       FIG.  6   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the sixth embodiment of the present invention;  FIG.  6   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the sixth embodiment;  FIG.  6   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the sixth embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     The buffer liquid storage  835  may include a buffer liquid storage high-density portion  8351  and a buffer liquid storage low-density portion  8352 . In the present embodiment, as shown in  FIG.  6   a   , the buffer liquid storage  835  provided in the present embodiment includes a buffer liquid storage high-density portion  8351  close to the atomizer and a buffer liquid storage low-density portion  8352  located at the periphery, and a gap is provided between the buffer liquid storage high-density portion  8351  and the bottom of the liquid storage element  100 . A cylindrical short tube with the air-liquid channel reinforcing rib  833  on the inner wall extends from the bottom of the liquid storage element  100 , and the cylindrical short tube serves as an air-liquid channel outer tube  834 , and the fluid core  832  is inserted into the air-liquid channel outer tube  834  to form an air-liquid channel  830 . 
     As shown in  FIGS.  6   b  and  6   c   , the fluid core  832  serves as the liquid channel, and a fluid channel  831  is formed among the air-liquid channel outer tube  834 , the air-liquid channel reinforcing rib  833 , and the fluid core  832 , and the fluid channel  831  serves as the air channel. The end surface of the air-liquid channel outer tube  834  abuts against the buffer liquid storage high-density portion  8351 , and the fluid core  832  is inserted into the buffer liquid storage high-density portion  8351 , and the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 0.8 mm. 
     The atomizer in this embodiment includes a heating core  930  without the wicking element, the heating core  930  is a porous ceramic pre-embedded heating wire. After the aerosol cartridge  800  is assembled, the liquid in the liquid storage element  100  is conducted to the buffer liquid storage high-density portion  8351  through the liquid channel of the air-liquid channel  830 , and is further conducted to the porous ceramic. The external air enters into the liquid storage element  100  from the air channel of the air-liquid channel  830 , and the capillary force of the buffer liquid storage high-density portion  8351  gradually decreases after absorbing the liquid until the liquid is no longer conducted from the liquid storage element  100 , and the system reaches the balance. 
     Increasing or reducing the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  may increase or reduce the amount of the liquid stored in the buffer liquid storage high-density portion  8351  when the system is balanced. When in use, the atomizer is heated, the liquid is atomized, the aerosol is leaded out to the top-plate aerosol hole  819  through the aerosol channel. The atomizer acquires the liquid from the buffer liquid storage high-density portion  8351 , the amount of the liquid stored in the buffer liquid storage high-density portion  8351  is reduced, the capillary force rises, and the liquid is conducted from the liquid storage element  100  to the buffer liquid storage high-density portion  8351  through the liquid channel. This process is repeated until the liquid in the liquid storage element  100  is exhausted. If the aerosol cartridge  800  continues to be used, the liquid in the buffer liquid storage  835  will continue to conduct to the porous ceramic and atomize, but the amount of the liquid gradually decays until it cannot be used. 
     The present embodiment has better leak-proof performance. Because generally the buffer liquid storage low-density portion  8352  does not absorb liquid, the buffer liquid storage low-density portion  8352  can absorb excess liquid when excess liquid is conducted and exceeds the capacity of the buffer liquid storage high-density portion  8351 . 
     The Seventh Embodiment 
       FIG.  7   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the seventh embodiment of the present invention;  FIG.  7   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the seventh embodiment;  FIG.  7   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the seventh embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     As shown in  FIG.  7   a   , a buffer liquid storage  835  is provided in the atomizing chamber  934  of the present embodiment, the buffer liquid storage  835  includes a buffer liquid storage low-density portion  8352  close to the liquid storage element  100  and a buffer liquid storage high-density portion  8351  located below the buffer liquid storage low-density portion  8352 . A cylindrical short tube with an air-liquid channel reinforcing rib  833  on the inner wall extends from the bottom of the liquid storage element  100 , and the cylindrical short tube serves as an air-liquid channel outer tube  834 , and the fluid core  832  is inserted into the air-liquid channel outer tube  834  to form an air-liquid channel  830 . 
     As shown in  FIG.  7   b    and  FIG.  7   c   , the fluid core  832  serves as the liquid channel, and a fluid channel  831  is formed among the air-liquid channel outer tube  834 , the air-liquid channel reinforcing rib  833  and the fluid core  832 , and the fluid channel  831  serves as the air channel. The maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 0.2 mm. The atomizer is glass fiber bundle wound on a resistance wire, and two ends of the glass fiber bundle are sandwiched between the buffer liquid storage high-density portion  8351  and the buffer liquid storage low-density portion  8352  or embedded in the buffer liquid storage high-density portion  8351 . After the aerosol cartridge  800  is assembled, the liquid in the liquid storage element  100  is conducted to the wicking element  200  of the atomizer and the buffer liquid high-density portion  8351  through the liquid channel of the air-liquid channel  830 , the external air enters into the liquid storage element  100  from the air channel, the capillary force of the buffer liquid storage high-density portion  8351  gradually decrease after absorbing the liquid until the liquid is no longer conducted from the liquid storage element  100 , the air channel is sealed by the liquid, and the system reaches the balance. 
     When in use, the atomizer heats the liquid in the glass fiber bundle to atomize, and the aerosol is lead out through the aerosol channel and the top plate aerosol hole  819 . During the atomization, the liquid is supplemented to the glass fiber bundle from the liquid storage element  100  through the liquid channel, and the air in the atomizing chamber  934  passes through the air channel and enters into the liquid storage element  100 . The process is continuously repeated until the liquid stored in the liquid storage element  100  is exhausted. If the liquid stored in the liquid storage element  100  is a particularly viscous liquid such as glycerol, the maximum inscribed circle diameter of the smallest cross-section of the air channel can be increased to 0.3 mm or 0.5 mm, so that the liquid sealing in the air channel can be opened smoothly, so that the atomization is smoothly performed. If the liquid viscosity in the liquid storage element  100  is lower, the maximum inscribed circle diameter of the smallest cross-section of the air channel can be appropriately reduced, such as 0.1 mm, so that the air channel can obtain a suitable liquid sealing strength and prevent liquid leakage. 
     In the present embodiment, a condensate absorbing element  400  is provided between the top plate aerosol hole  819  and the liquid storage element  100 , so as to absorb condensate in the aerosol, and improve the use experience. 
     The Eighth Embodiment 
       FIG.  8   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the eighth embodiment of the present invention;  FIG.  8   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the eighth embodiment;  FIG.  8   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the eighth embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     As shown in  FIG.  8   a   , the aerosol cartridge  800  of the present embodiment is in the shape of a pipe, and includes an aerosol channel  1303  and an aerosol outlet  1301 , the aerosol channel  1303  and the aerosol outlet  1301  are provided on a side surface of the atomizing chamber  934 . A cylindrical short tube with an air-liquid channel reinforcing rib  833  on the inner wall extends from the bottom of the liquid storage element  100 , and the cylindrical short tube serves as an air-liquid channel outer tube  834 , and the fluid core  832  is inserted into the air-liquid channel outer tube  834  to form an air-liquid channel  830 . 
     As shown in  FIG.  8   b    and  FIG.  8   c   , the fluid core  832  serves as the liquid channel, and a fluid channel  831  is formed among the air-liquid channel outer tube  834 , the air-liquid channel reinforcing rib  833  and the fluid core  832 , and the fluid channel  831  serves as the air channel. The maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 0.3 mm, and the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  can also be appropriately increased or reduced depending on the liquid viscosity and use requirements to obtain a suitable aerosol amount. 
     The atomizer is provided with a heating core  930  and without a wicking element, the heating core  930  is a ceramic printing with a thick film heater. The liquid in the liquid storage element  100  of the present embodiment flows through the fluid core  832  to be directly conducted to the heating core  930 . When in use, the atomizer is heated, the liquid from the contact portion between the fluid core  832  and the atomizer is atomized and emitted, the liquid in the fluid core  832  is supplemented from the liquid storage element  100 , the principle thereof is similar to that of the first embodiment, and the details will not be repeated herein again. 
     The Ninth Embodiment 
       FIG.  9   a    shows a schematic structural diagram of an aerosol cartridge with an air-liquid channel according to the ninth embodiment of the present invention;  FIG.  9   b    shows a schematic cross-sectional view of an air-liquid channel in the aerosol cartridge with the air-liquid channel according to the ninth embodiment;  FIG.  9   c    shows a schematic profile view of the air-liquid channel in the aerosol cartridge with the air-liquid channel according to the ninth embodiment;  FIG.  9   d    shows a schematic cross-sectional view of an second air-liquid channel in the aerosol cartridge with the air-liquid channel according to the ninth embodiment. The structure of the present embodiment is similar to that of the first embodiment, and the same parts as the first embodiment will not be repeated in the description of this embodiment. 
     As shown in  FIG.  9   a   , in the present embodiment, an air-liquid channel  830  is provided at the bottom of the liquid storage element  100 . The air-liquid channel  830  is formed by inserting a fluid core  832  having an axial groove on the outer peripheral wall into a short tube at the bottom of the liquid storage element  100 . The short tube forms an air-liquid channel outer tube  834 . 
     As shown in  FIGS.  9   b  and  9   c   , the fluid core  832  serves as the liquid channel, a fluid channel  831  is formed by the groove of the fluid core  832  and the inner wall of the air-liquid channel outer tube  834 , which serves as an air channel. The maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  is 0.2 mm. Depending on the liquid viscosity, the maximum inscribed circle diameter of the smallest cross-section of the fluid channel  831  can be appropriately increased or reduced. 
     The bottom of the liquid storage element  100  is also provided with a second liquid channel  836 , the cross-section of the second liquid channel  836  is shown in  FIG.  9   d   , the second liquid channel  836  is a small groove and is in communication with the buffer liquid storage  835  provided in the atomizing chamber  934 . The atomizer of this embodiment includes a heating core  930  and a wicking element  200  which is cotton or glass fiber, the heating core  930  is a heating wire wound on the wicking element  200 . 
     The two ends of the wicking element  200  are sandwiched between the buffering liquid storage  835  and the supporting member  935  made of silica gel, and the working principle of this embodiment is similar to that of the first embodiment. The advantage of this arrangement is that the liquid conduction is more stable and reliable. 
     In summary, the aerosol cartridge with the air-liquid channel of the present invention is suitable for applications such as liquid mosquito-repellent incense, aromatherapy and electronic cigarettes, and can also be used in the medical field for quantitative atomization of inhaled drug solution. This aerosol cartridge makes the structure complicated, has a good leakproof property, and is capable of uniformly controlling the emission of the liquid. If an airflow sensor is provided in the external control device, the atomization of the liquid can be controlled according to the airflow, which is more convenient to use. 
     In addition, the foregoing embodiments of the present invention are only intended to illustrate the principle and advantages of the present invention rather than limiting the present invention. Those skilled in the art can make modifications or changes to the foregoing embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concepts disclosed by the present invention shall still be covered by the claims of the present invention.