Atomization assembly and aerosol generating device

Abstract

Disclosed in the present application are an atomization assembly (1000) and an aerosol generating device. The atomization assembly (1000) comprises a housing assembly (100) and a heating body (200), wherein an atomization cavity (500) and an air intake channel (700) that are in communication with each other are formed in the housing assembly (100); the heating body (200) is arranged in the housing assembly (100) in the longitudinal direction of the housing assembly (100); the air intake channel (700) has a connecting end (740) in communication with the atomization cavity (500); the air intake channel (700) and the heating body (200) are arranged at an interval in the transverse direction of the housing assembly (100); a liquid storage space (800) is formed between the air intake channel (700) and the heating body (200); a bottom surface of the liquid storage space (800) is lower than the connecting end (740); and the bottom surface of the liquid storage space (800) is lower than a lower edge of an atomization surface (220). The present application can mitigate the blockage of the air intake channel (700).

Description

Atomizing assembly and aerosol generating device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 5, 2023, with application number 202322407360.0 and invention name “A Nebulizer Assembly and Aerosol Generating Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of aerosol generation, and in particular to an atomization assembly and an aerosol generating device. Background Art

[0003] The statements herein provide only background information related to the present application and do not necessarily constitute prior art. An atomizer assembly typically has a liquid storage chamber. While ensuring structural tightness, the liquid storage chamber is typically ventilated through a porous heating element and a ventilation channel. After the liquid storage chamber is filled with oil, the heating element typically absorbs the atomized liquid, generating a certain negative pressure in the liquid storage chamber to lock the atomized liquid, or the ventilation channel is used to store atomized liquid that leaks from the liquid storage chamber into the ventilation channel. However, when the pressure within the liquid storage chamber fluctuates significantly due to temperature, a large positive pressure differential can develop between the liquid storage chamber and the ventilation channel and / or the heating element. This positive pressure differential can squeeze out the atomized liquid stored in the ventilation channel and / or the heating element, ultimately causing the atomized liquid to leak. The leaked atomized liquid will flow into the air inlet channel connected to the atomizer chamber. When the atomized liquid is a highly viscous liquid, its viscosity varies significantly with temperature. Specifically, higher temperatures result in lower viscosity, while lower temperatures result in higher viscosity. The highly viscous liquid entering the air intake channel cools and solidifies due to contact with the air intake channel with lower temperature, and even blocks the air intake channel. Once the air intake channel is blocked, the airflow sensor used to start by sensing the airflow will not be able to start, thereby affecting the user's puffing experience. Technical issues

[0004] One of the purposes of the embodiments of the present application is to provide an atomization assembly and an aerosol generating device to solve the technical problem in the prior art that the air flow sensor cannot be started due to the blockage of the air inlet passage by the leakage of the atomized liquid. Technical Solutions

[0005] The technical solution adopted in the embodiment of this application is:

[0006] In a first aspect, an atomization assembly is provided, comprising a shell assembly and a heating element; the shell assembly is formed with an atomization chamber and an air inlet channel that are interconnected; the heating element is arranged in the shell assembly along the longitudinal direction of the shell assembly; the heating element includes an atomization surface that is connected to the atomization chamber; the air inlet channel has a connecting end that is connected to the atomization chamber; the air inlet channel and the heating element are arranged at intervals along the transverse direction of the shell assembly; a liquid storage space is formed between the air inlet channel and the heating element; the bottom surface of the liquid storage space is lower than the connecting end; and the bottom surface of the liquid storage space is lower than the lower edge of the atomization surface.

[0007] In one embodiment, the connection end of the air inlet channel is higher than the bottom surface of the atomization chamber;

[0008] The bottom surface of the liquid storage space is flush with the bottom surface of the atomizing chamber; or, the bottom surface of the liquid storage space is lower than the bottom surface of the atomizing chamber.

[0009] In one embodiment, the connection end of the air inlet channel is higher than the lower edge of the atomizing surface.

[0010] In one embodiment, a rib extends from the bottom surface of the atomization chamber, and the rib encloses and forms a portion of the air inlet channel located in the atomization chamber. The rib and the heating element are spaced apart in the lateral direction of the shell assembly.

[0011] In one embodiment, the connecting end of the air inlet channel is flush with the bottom surface of the atomizing chamber; and the bottom surface of the liquid storage space is lower than the bottom surface of the atomizing chamber.

[0012] In one embodiment, a liquid storage chamber, a ventilation channel and a collection tank are also formed in the shell assembly; the heating body connects the liquid storage chamber and the atomization chamber; the air inlet end of the ventilation channel is connected to the collection tank; and the air outlet end of the ventilation channel is connected to the liquid storage chamber.

[0013] In one embodiment, the collecting tank is formed in the atomizing chamber; and the air inlet end of the ventilation channel extends to the bottom of the collecting tank.

[0014] In one embodiment, the connection end of the air inlet channel is higher than the bottom surface of the atomizing chamber; the bottom surface of the liquid storage space is flush with the bottom surface of the atomizing chamber; the collecting tank is formed by the concave bottom surface of the atomizing chamber; the atomized liquid in the liquid storage space can flow into the collecting tank.

[0015] In one embodiment, the connection end of the air inlet passage is arranged offset from the central axis of the housing assembly.

[0016] In one embodiment, the air inlet channel includes an air inlet section, a transition section and an air outlet section; the air inlet section, the transition section and the air outlet section are connected in sequence, the air inlet section is used to communicate with the outside, and the central axis of the air inlet section coincides with the central axis of the shell assembly; the air outlet section is connected to the atomization chamber, and the central axis of the air outlet section is set away from the central axis of the shell assembly; the transition section is connected between the air inlet section and the air outlet section.

[0017] In one embodiment, the shell assembly includes an atomizer tube, a mounting frame, a connecting seat and an electrode assembly; the mounting frame is sleeved on the outside of the electrode assembly, the connecting seat is sleeved outside the mounting frame, the air inlet section is formed at the center of the electrode assembly, the air outlet section is formed on the mounting frame, and the transition section is formed by the electrode assembly, the mounting frame and the connecting seat; the atomizer tube and the mounting frame together form the atomizer chamber.

[0018] In one embodiment, the electrode assembly is opened at one end toward the battery assembly, and is closed at one end for electrical connection to the heating element. A connecting hole is formed on the side wall of the electrode assembly, and a through groove is formed on the side wall of the mounting frame, and the through groove is respectively connected to the connecting hole and the air outlet section.

[0019] In one embodiment, the mounting frame includes a first sleeve, a support plate and a positioning bone; the first sleeve and the positioning bone are respectively formed on opposite sides of the support plate; the first sleeve is sleeved outside the electrode assembly, the connecting seat is sleeved outside the first sleeve, and the through groove is formed in the first sleeve.

[0020] In one embodiment, the housing assembly includes an airway wall forming the ventilation channel, and the airway wall is at least partially located in the atomization chamber;

[0021] The airway wall is arranged horizontally opposite to the atomizing surface of the heating element;

[0022] Alternatively, the airway wall is arranged transversely and obliquely opposite to the atomizing surface of the heating element.

[0023] In a second aspect, an aerosol generating device is provided, comprising a battery assembly, a nozzle and the above-mentioned atomization assembly, wherein the nozzle is connected to the atomization assembly, and the battery assembly is electrically connected to the atomization assembly. Beneficial effects

[0024] The beneficial effect of the atomizer assembly provided in the embodiment of the present application is that: by arranging the heating element in the shell assembly along the longitudinal direction of the shell assembly, and spacing the air inlet channel and the heating element along the transverse direction of the shell assembly, the atomized liquid leaked from the heating element will not directly flow into the air inlet channel; at the same time, by forming a liquid storage space between the air inlet channel and the heating element, and the bottom surface of the liquid storage space is lower than the connecting end of the air inlet channel, the atomized liquid leaked from the heating element can directly flow into the liquid storage space for storage, and will not flow from the liquid storage space to the air inlet channel, thereby reducing the blockage of the air inlet channel due to the entry of the atomized liquid, so that the airflow of the atomizer assembly is smooth, and the airflow sensor can be activated in time when the user inhales, so as to improve the user's inhalation experience.

[0025] The beneficial effect of the aerosol generating device provided in the embodiment of the present application is that: through the design of the above-mentioned atomization component, the aerosol generating device has a fast suction response, thereby improving the user's suction experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] FIG1 is a schematic diagram of the three-dimensional structure of an aerosol generating device provided in an embodiment of the present application;

[0028] FIG2 is a partially exploded schematic diagram of an aerosol generating device provided in an embodiment of the present application;

[0029] FIG3 is an exploded schematic diagram of the nozzle and atomization assembly of the aerosol generating device provided in an embodiment of the present application;

[0030] FIG4 is a schematic side view of the aerosol generating device in FIG1 ;

[0031] FIG5 is a schematic cross-sectional view of the aerosol generating device in FIG4 taken along line AA;

[0032] FIG6 is an enlarged connection diagram of a part B in FIG5 ;

[0033] FIG7 is a schematic diagram of the assembly of the connecting base, mounting frame, heating element, sealing member, connecting electrode and electrode assembly of the aerosol generating device in FIG6 ;

[0034] FIG8 is a schematic structural diagram of a mounting frame for the aerosol generating device in FIG6 ;

[0035] FIG. 9 is a schematic structural diagram of a connecting piece of the aerosol generating device in FIG. 6 .

[0036] Among them, the reference numerals in the figures are:

[0037] 1000, atomizer assembly; 100, housing assembly; 110, connector; 111, second sleeve; 112, bottom plate; 113, third sleeve; 120, atomizer tube; 121, atomizer section; 122, smoke guide section; 1221, smoke guide channel; 123, step plate; 1231, through port; 130, liquid storage tube; 140, connecting electrode; 150, electrode assembly; 151, electrode ring; 1511, connecting hole; 1512, groove; 152, connector; 1521, first connecting column; 1522, connecting block; 1523, second connecting column; 160, mounting bracket ;161. First sleeve;1611. Through groove;162. Support plate;163. Positioning bone;164. Positioning block;165. Surrounding bone;200. Heating element;210. Liquid inlet surface;220. Atomizing surface;300. Sealing element;400. Liquid storage chamber;500. Atomizing chamber;600. Ventilation channel;610. Airway wall;700. Air inlet channel;710. Air inlet section;720. Air outlet section;730. Transition section;740. Connecting end;800. Liquid storage space;900. Collecting tank;2000. Battery assembly;3000. Suction nozzle;4000. Sealing sleeve. Modes for Carrying Out the Invention

[0038] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit this application.

[0039] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] In order to illustrate the technical solution provided by this application, a detailed description is given below with reference to specific drawings and embodiments.

[0041] The atomizing assembly generally has a liquid storage chamber. Under the premise of ensuring the sealing of the structure, the liquid storage chamber is generally ventilated through a porous heating element and / or a ventilation channel. After the liquid storage chamber is filled with oil, the atomized liquid is generally locked by the heating element absorbing the atomized liquid to generate a certain negative pressure in the liquid storage chamber, or the atomized liquid leaked from the liquid storage chamber into the ventilation channel is stored through the ventilation channel. However, when the air pressure in the liquid storage chamber fluctuates greatly due to the influence of temperature, a large positive pressure difference will be generated between the liquid storage chamber and the heating element and / or the ventilation channel. The positive pressure difference will squeeze out the atomized liquid stored in the heating element and / or the ventilation channel, and eventually cause the atomized liquid to leak. The leaked atomized liquid will flow into the air inlet channel connected to the atomizing chamber. When the atomized liquid is a high-viscosity liquid, the viscosity of the high-viscosity liquid changes greatly with temperature. The higher the temperature, the lower the viscosity; the lower the temperature, the greater the viscosity. The highly viscous liquid entering the air intake channel cools and solidifies due to contact with the air intake channel with lower temperature, and even blocks the air intake channel. Once the air intake channel is blocked, the airflow sensor used to start by sensing the airflow will not be able to start, thereby affecting the user's puffing experience.

[0042] Specifically, due to the temperature difference between day and night, the atomizing assembly has an unavoidable leakage phenomenon. When the atomized liquid in the liquid storage chamber is consumed in large quantities and only a small part remains, a large closed cavity will be formed above the atomized liquid. When the temperature drops at night, the cavity pressure in the liquid storage chamber decreases and the negative pressure increases. In order to maintain the gas-liquid balance, the outside air will be pressed into the liquid storage chamber through the ventilation channel or the heating element, thereby establishing a new balance; when the temperature rises during the day, the temperature in the liquid storage chamber increases, the cavity pressure in the liquid storage chamber increases, and the negative pressure decreases. In order to maintain the balance, the pressure in the liquid storage chamber will squeeze the atomized liquid outward, resulting in leakage of the atomized liquid. When the atomized liquid leaks and flows into the air inlet channel, the above-mentioned air inlet channel blockage will occur.

[0043] In order to solve the above problems, the inventors of the present application, after a long period of in-depth research, finally provide an atomization assembly 1000 and an aerosol generating device, by arranging the heating element 200 in the shell assembly 100 along the longitudinal direction of the shell assembly 100, and forming a liquid storage space 800 between the air inlet channel 700 and the heating element 200, and the bottom surface of the liquid storage space 800 is lower than the connection end 740 of the air inlet channel 700, so that the liquid leaked from the heating element 200 can flow into the liquid storage space 800 instead of flowing into the air inlet channel 700, thereby reducing the blockage of the air inlet channel 700 due to the entry of atomized liquid, ensuring smooth airflow, ensuring that the airflow sensor can sense the airflow in time and start, and improving the user's puffing experience.

[0044] Referring to Figures 1 and 2, an embodiment of the present application provides an aerosol generating device, including an atomizer assembly 1000, a battery assembly 2000 and a mouthpiece 3000; the battery assembly 2000 is electrically connected to the atomizer assembly 1000, and the battery assembly 2000 is used to power the atomizer assembly 1000 to enable the atomizer assembly 1000 to start atomization; the atomizer assembly 1000 is used to atomize the atomizing liquid into an aerosol; the mouthpiece 3000 is connected to the atomizer assembly 1000 and is used to deliver the aerosol generated by the atomizer assembly 1000 to the oral cavity of the user.

[0045] Please refer to Figures 2 to 6 together. The atomizer assembly 1000 includes a shell assembly 100 and a heating element 200; the shell assembly 100 is formed with an atomizing chamber 500 and an air inlet channel 700 that are interconnected; the heating element 200 is arranged in the shell assembly 100 along the longitudinal direction of the shell assembly 100; the heating element 200 includes an atomizing surface 220 that is connected to the atomizing chamber 500; the air inlet channel 700 has a connecting end 740 that is connected to the atomizing chamber 500; the air inlet channel 700 and the heating element 200 are arranged at intervals along the transverse direction of the shell assembly 100; a liquid storage space 800 is formed between the air inlet channel 700 and the heating element 200; the bottom surface of the liquid storage space 800 is lower than the connecting end 740; the bottom surface of the liquid storage space 800 is lower than the lower edge of the atomizing surface 220.

[0046] It should be noted that the longitudinal direction here refers to the direction extending roughly along the axial direction of the shell assembly 100. For example, the heating element 200 is arranged along the axial direction parallel to the shell assembly 100, or the heating element 200 is arranged in a manner that forms an inclined angle with the axial direction of the shell assembly 100. Generally speaking, the extension trend of the heating element 200 is the same as the axial direction of the shell assembly 100, that is, the heating element 200 is installed on the side of the atomization chamber 500, and the liquid inlet surface 210 and the atomization surface 220 of the heating element 200 are arranged roughly parallel to the airflow direction in the atomization chamber 500.

[0047] The transverse direction here refers to a direction perpendicular to the longitudinal direction. For example, when the housing assembly 100 is placed vertically, the transverse direction refers to a horizontal direction.

[0048] The atomizing assembly 1000 in the embodiment of the present application is configured such that the heating element 200 is disposed in the shell assembly 100 along the longitudinal direction of the shell assembly 100, and the air inlet channel 700 and the heating element 200 are spaced apart in the transverse direction of the shell assembly 100, so that the atomized liquid leaking from the heating element 200 does not flow directly into the air inlet channel 700; at the same time, a liquid storage space 800 is formed between the air inlet channel 700 and the heating element 200, and the bottom surface of the liquid storage space 800 is lower than the lower edge of the atomizing surface 220, so that The atomized liquid leaked from the heating element 200 can flow directly into the liquid storage space 800 for storage, and the bottom surface of the liquid storage space 800 is lower than the connection end 740 of the air inlet channel 700, so that the atomized liquid in the liquid storage space 800 will not flow from the liquid storage space 800 to the air inlet channel 700, thereby reducing the blockage of the air inlet channel 700 due to the entry of the atomized liquid, so that the airflow of the atomizing assembly 1000 is smooth, and the airflow sensor can be activated in time when the user inhales, so as to improve the user's puffing experience.

[0049] In addition, since the liquid storage space 800 is connected to the heating element 200, when the negative pressure is restored in the liquid storage chamber 400 for storing the atomized liquid, the heating element 200 can also suck back part of the atomized liquid leaked into the liquid storage space 800, thereby ensuring the smoothness of the suction process.

[0050] In one embodiment, referring to Figures 6 to 8, the connection end 740 of the air inlet channel 700 is higher than the bottom surface of the atomizing chamber 500; the bottom surface of the liquid storage space 800 is flush with the bottom surface of the atomizing chamber 500. In this embodiment, by arranging the connection end 740 of the air inlet channel 700 at a certain height position in the atomizing chamber 500, even if the bottom surface of the liquid storage space 800 is parallel to the bottom surface of the atomizing chamber 500, the atomized liquid leaked from the heating element 200 will not flow from the liquid storage space 800 into the air inlet channel 700. At the same time, since the bottom surface of the liquid storage space 800 is flush with the bottom surface of the atomizing chamber 500, that is, the liquid storage space 800 can be formed without digging a groove on the bottom surface of the atomizing chamber 500, the processing technology of the housing assembly 100 can be simplified. It is understandable that in other embodiments of the present application, in order to accommodate more atomized liquid, the bottom surface of the liquid storage space 800 can also be set to be lower than the bottom surface of the atomizing chamber 500, that is, a groove is dug on the bottom surface of the atomizing chamber 500, which is not the only limitation here.

[0051] In one embodiment, referring to Figures 6 to 8, the air inlet channel 700 extends from the bottom surface of the atomizing chamber 500 into the atomizing chamber 500, and a rib 165 extends upward from the bottom surface of the atomizing chamber 500. The rib 165 encloses the portion of the air inlet channel 700 located in the atomizing chamber 500, and the rib 165 and the heating element 200 are spaced apart from each other along the lateral direction of the shell assembly 100.

[0052] In one embodiment, due to the provision of the perimeter frame 165 and the relative spacing between the perimeter frame 165 and the heating element 200, in order to prevent the atomized aerosol from hitting the perimeter frame 165 and generating condensation, it is necessary to reasonably control the height parameters of the perimeter frame 165 to ensure minimal condensation. Specifically, the height of the perimeter frame 165 can be measured based on multiple tests. For example, by setting the perimeter frame 165 at different heights to measure the amount of condensation on the perimeter frame 165, the optimal design height of the perimeter frame 165 can be obtained through repeated experiments.

[0053] In one embodiment, referring to FIG6 , the connection end 740 of the air inlet channel 700 is higher than the lower edge of the atomizing surface 220. This prevents the atomized liquid in the liquid storage space 800 from flowing into the air inlet channel 700 when it is higher than the lower edge of the atomizing surface 220, thereby increasing the storage capacity of the liquid storage space 800. Furthermore, when the atomized liquid in the liquid storage space 800 is higher than the lower edge of the atomizing surface 220, during inhalation by the user, the heating element 200 atomizes the atomized liquid above the lower edge of the atomizing surface 220, thereby preventing the atomized liquid from exceeding the connection end 740 of the air inlet channel 700 and, in other words, from entering the air inlet channel 700.

[0054] In another embodiment of the present application, the connecting end 740 of the air inlet channel 700 is flush with the bottom surface of the atomizing chamber 500; the bottom surface of the liquid storage space 800 is lower than the bottom surface of the atomizing chamber 500. In this embodiment, the air inlet channel 700 does not extend from the bottom of the atomizing chamber 500 into the atomizing chamber 500, that is, there is no need to set the surrounding bone 165 in the atomizing chamber 500. In addition, in order to prevent the atomized liquid in the liquid storage space 800 from flowing into the atomizing chamber 500, the bottom surface of the liquid storage space 800 is also designed to be lower than the bottom surface of the atomizing chamber 500, that is, it is necessary to dig a groove on the bottom surface of the atomizing chamber 500 to accommodate the atomized liquid.

[0055] In one embodiment, referring to Figures 5 and 6 , the housing assembly 100 further defines a liquid storage chamber 400, which is spaced apart from the atomizing chamber 500. The heating element 200 communicates with the liquid storage chamber 400 and the atomizing chamber 500. The liquid inlet surface 210 of the heating element 200 communicates with the liquid storage chamber 400. Atomized liquid in the liquid storage chamber 400 enters the heating element 200 through the liquid inlet surface 210 and is atomized at the atomizing surface 220 to form an aerosol. The airflow entering the atomizing chamber 500 from the air inlet channel 700 carries the aerosol to the mouthpiece 3000 for inhalation by the user.

[0056] In one embodiment, referring to FIG6 , the housing assembly 100 is further formed with a ventilation channel 600 and a collection tank 900 ; the air inlet end of the ventilation channel 600 is in communication with the collection tank 900 ; and the air outlet end of the ventilation channel 600 is in communication with the liquid storage chamber 400 . The provision of the ventilation channel 600 enables ventilation of the liquid storage chamber 400 . The provision of the collection tank 900 allows for the collection tank 900 to store the atomized liquid flowing out of the ventilation channel 600 when the air pressure in the liquid storage chamber 400 increases excessively, causing the atomized liquid in the liquid storage chamber 400 to leak into the ventilation channel 600 or even flow out of the ventilation channel 600 , thereby preventing the atomized liquid from entering the air inlet channel 700 and blocking the air inlet channel 700 . In addition, when the negative pressure in the liquid storage chamber 400 is restored, the atomized liquid in the collection tank 900 can also be sucked back into the liquid storage chamber 400 through the ventilation channel 600 to reduce the leakage of the atomized liquid and ensure smooth ventilation.

[0057] In one embodiment, referring to FIG6 , a collection tank 900 is formed in the atomizing chamber 500, and an air inlet end of the ventilation channel 600 is in communication with the atomizing chamber 500. That is, during ventilation, the airflow in the atomizing chamber 500 enters the liquid storage chamber 400 through the ventilation channel 600 for ventilation. It is understandable that in other embodiments of the present application, the air inlet end of the ventilation channel 600 may not be in communication with the atomizing chamber 500, but may be directly in communication with the external airflow. In this case, the collection tank 900 is not formed in the atomizing chamber 500, but is formed on the side wall of the housing assembly 100, and the collection tank 900 is in communication with the external atmosphere.

[0058] In one embodiment, referring to FIG6 , the collection tank 900 is formed at the bottom of the atomizing chamber 500. This reduces the risk of atomized liquid in the collection tank 900 flowing into the air inlet channel 700. In other embodiments of the present application, when the connection end 740 of the air inlet channel 700 is at a higher height, the collection tank 900 may also be formed at a position other than the bottom of the atomizing chamber 500, as long as the collection tank 900 is lower than the connection end 740 of the air inlet channel 700.

[0059] In one embodiment, referring to FIG. 6 , the collecting tank 900 is formed by a concave bottom of the atomizing chamber 500 .

[0060] In one embodiment, referring to FIG6 , the connection end 740 of the air inlet channel 700 is higher than the bottom surface of the atomizing chamber 500; the bottom surface of the liquid storage space 800 is flush with the bottom surface of the atomizing chamber 500; the collection tank 900 is formed by the concave bottom surface of the atomizing chamber 500; and the atomized liquid in the liquid storage space 800 can flow into the collection tank 900. In other words, whether the atomized liquid leaks from the heating element 200 or the atomized liquid leaking from the ventilation channel 600, it will eventually flow into the collection tank 900 for collection. The atomized liquid in the collection tank 900 can be sucked back into the ventilation channel 600 or the heating element 200.

[0061] In one embodiment, referring to FIG6 , the air inlet end of the ventilation channel 600 extends to the bottom of the collection tank 900. This arrangement allows, when the negative pressure in the liquid storage chamber 400 is restored, even if there is only a small amount of atomized liquid in the collection tank 900, to be sucked back into the ventilation channel 600, thereby ensuring the aspiration effect of the ventilation channel 600. It is understandable that, in other embodiments of the present application, the connection end 740 of the ventilation channel 600 may also be extended to a position above the bottom of the collection tank 900, so that when atomized liquid is collected in the collection tank 900, the ventilation channel 600 can still ensure smooth ventilation.

[0062] In one embodiment, referring to FIG6 , the air inlet passage 700 extends from the bottom surface of the atomizing chamber 500 into the atomizing chamber 500. A rib 165 extends upward from the bottom surface of the atomizing chamber 500. The rib 165 encloses the portion of the air inlet passage 700 located within the atomizing chamber 500. The rib 165 and the heating element 200 are spaced apart in the lateral direction of the housing assembly 100. The bottom of the atomizing chamber 500 is concave to form a collection tank 900.

[0063] In one embodiment, referring to FIG6 , the housing assembly 100 includes an airway wall 610 forming a ventilation channel 600, and the airway wall 610 is at least partially located within the atomizing chamber 500. In the present application, by connecting the atomizing surface 220 of the heating element 200 to the atomizing chamber 500, the atomizing surface 220 can generate a high-temperature aerosol, thereby increasing the temperature within the atomizing chamber 500. At the same time, the airway wall 610 of the ventilation channel 600 is at least partially located within the atomizing chamber 500, thereby enabling the temperature within the atomizing chamber 500 to be transferred to the high-viscosity atomized liquid within and near the ventilation channel 600 through the airway wall 610, thereby increasing the fluidity of the atomized liquid and enabling smooth ventilation of the atomized liquid.

[0064] In one embodiment, referring to FIG6 , the ventilation channel 600 is positioned transversely to the heating element 200 . Specifically, the airway wall 610 of the ventilation channel 600 is positioned directly opposite the atomizing surface 220 of the heating element 200 . The aerosol atomized by the heating element 200 will be directed toward the wall opposite the heating element 200 , thereby rapidly heating the airway wall 610 and, in turn, rapidly heating the atomized liquid within and near the ventilation channel 600 . Furthermore, testing has shown that when the airway wall 610 of the ventilation channel 600 is positioned directly opposite the atomizing surface 220 of the heating element 200 , the temperature within the ventilation channel 600 is relatively higher. It can be understood that in other embodiments of the present application, the air duct wall 610 of the ventilation channel 600 can also be set horizontally and obliquely opposite to the atomizing surface 220 of the heating element 200, that is, the air duct wall 610 of the ventilation channel 600 is a wall surface set obliquely opposite to the atomizing surface 220 of the heating element 200, which can also make the ventilation channel 600 heat up quickly.

[0065] In one embodiment, referring to FIG6 , the connection end 740 of the air inlet channel 700 is disposed offset from the central axis of the shell assembly 100. In this embodiment, since the heating element 200 is disposed longitudinally in the shell assembly 100, the heating element 200 needs to occupy the lateral space of the shell assembly 100. If the air inlet channel 700 is still disposed at the center of the shell assembly 100 as before, the air inlet channel 700 will be in contact with or too close to the heating element 200. In this embodiment, the connection end 740 of the air inlet channel 700 is disposed offset from the central axis of the shell assembly 100. This can ensure that the connection end 740 of the air inlet channel 700 is as far away from the heating element 200 as possible while ensuring smooth air intake, thereby reducing the atomized liquid leaking from the heating element 200 from flowing directly into the air inlet channel 700, and also reducing the possibility of the aerosol generated at the heating element 200 being condensed by the surrounding bone 165 of the ventilation channel 600.

[0066] In one embodiment, referring to FIG6 , the air inlet channel 700 includes an air inlet section 710, a transition section 730, and an air outlet section 720. The air inlet section 710, the transition section 730, and the air outlet section 720 are connected in sequence. The air inlet section 710 is used to communicate with the battery assembly 2000, and the central axis of the air inlet section 710 coincides with the central axis of the housing assembly 100; the air outlet section 720 is connected to the atomization chamber 500, and the central axis of the air outlet section 720 is set offset from the central axis of the housing assembly 100; the transition section 730 is connected between the air inlet section 710 and the air outlet section 720. In the embodiment of the present application, by coaxially arranging the air inlet section 710 and the housing assembly 100, it is possible to ensure that the air inlet section 710 and the battery assembly 2000 are coaxially arranged, so that the airflow at the battery assembly 2000 can smoothly enter the air inlet section 710, ensuring smooth airflow.

[0067] In one embodiment, referring to Figures 3, 5 to 8, the housing assembly 100 includes a mounting bracket 160, an atomizing tube 120, and a liquid storage tube 130; the liquid storage tube 130 and the atomizing tube 120 together form a liquid storage chamber 400, and the mounting bracket 160 and the atomizing tube 120 together form an atomizing chamber 500.

[0068] Specifically, the atomizing tube 120 includes an atomizing section 121 and a smoke guiding section 122 that are interconnected. The diameter of the atomizing section 121 is larger than the diameter of the smoke guiding section 122, and the atomizing section 121 and the smoke guiding section 122 are connected by a step plate 123; the atomizing section 121 is sleeved outside the mounting frame 160; the liquid storage tube 130 is sleeved outside the atomizing section 121 and the smoke guiding section 122, and the liquid storage tube 130 and the smoke guiding section 122 are separated to form a liquid storage chamber 400; the heating element 200 is installed in the atomizing section 121 to divide the inner cavity of the atomizing section 121 into an atomizing chamber 500 and a buffer chamber. The atomizing chamber 500 is connected to the smoke guiding section 122, specifically, the atomizing chamber 500 is connected to the smoke guiding channel 1221 of the smoke guiding section 122. A through-port 1231 is formed on the step plate 123, and the atomized liquid in the liquid storage chamber 400 flows to the buffer tank through the through-port 1231 for atomization to be atomized by the heating element 200. In this embodiment, by dividing the atomizing tube 120 into an atomizing section 121 for atomization and a smoke guiding section 122 for guiding smoke, and setting the diameter of the atomizing section 121 to be larger than the diameter of the smoke guiding section 122, there is enough space to install the heating element 200; at the same time, by forming the liquid storage chamber 400 between the liquid storage tube 130 and the smoke guiding section 122, and the liquid storage tube 130 can be sleeved outside the atomizing section 121, the diameter of the atomizing section 121 is increased without increasing the outer diameter of the entire housing assembly 100, that is, the side installation of the heating element 200 is achieved without increasing the overall outer diameter of the atomizing assembly 1000, which is conducive to miniaturization. At the same time, the opposite sides of the heating element 200 can be connected to the atomizing chamber 500 and the liquid storage chamber 400 respectively. In addition, in the present application, the buffer tank is actually a part of the liquid storage chamber 400.

[0069] In one embodiment, referring to Figures 3 and 6 , the heating element 200 is sealed and installed in the atomizing section 121 via a sealing member 300. Specifically, the sealing member 300 is installed in the inner cavity of the atomizing section 121, and the sealing member 300 is sleeved on the outer periphery of the heating element 200. The outer wall of the sealing member 300 is respectively in contact with the inner wall of the atomizing section 121 and the mounting bracket 160, thereby achieving a sealed connection between the heating element 200, the atomizing section 121, and the mounting bracket 160 through the sealing member 300.

[0070] In one embodiment, referring to Figures 3 and 6 , the housing assembly 100 further includes an electrode assembly 150 and a connecting electrode 140. The electrode assembly 150 and the connecting electrode 140 are respectively mounted on a mounting frame 160, and the electrode assembly 150 and the connecting electrode 140 are respectively connected to two electrodes of the heating element 200, and the electrode assembly 150 and the connecting electrode 140 are respectively connected to the battery assembly 2000, thereby enabling the battery assembly 2000 to power the heating element 200.

[0071] In one embodiment, referring to FIG. 2 and FIG. 6 , the housing assembly 100 further includes a connecting base 110 , and the mounting bracket 160 is mounted on the connecting base 110 . The connecting base 110 forms a mechanical connection with the battery assembly 2000 .

[0072] In one embodiment, referring to Figures 2 and 6, the connecting base 110 is a conductor, one end of the connecting electrode 140 abuts against the connecting base 110, the other end of the connecting electrode 140 is connected to the heating element 200, and the connecting base 110 is electrically connected to the battery assembly 2000, so that an electrical connection between the battery assembly 2000 and the heating element 200 can be formed through the connecting base 110 and the connecting electrode 140. In the embodiment of the present application, by separating the connecting electrode 140 from the connecting base 110, the processing difficulty of the connecting base 110 and the connecting electrode 140 can be reduced. It can be understood that in other embodiments of the present application, the above-mentioned connecting electrode 140 and the connecting base 110 can also be an integrated connection structure, which is not the only limitation here.

[0073] In one embodiment, referring to FIG6 , the mounting frame 160 is sleeved outside the electrode assembly 150, and the connecting base 110 is sleeved outside the mounting frame 160. The air inlet section 710 of the air inlet channel 700 is formed at the center of the electrode assembly 150, the air outlet section 720 is formed on the mounting frame 160, and the transition section 730 is enclosed by the electrode assembly 150, the mounting frame 160, and the connecting base 110.

[0074] Specifically, please refer to Figures 6 and 8. The electrode assembly 150 is set with an open end facing the battery assembly 2000, and the end of the electrode assembly 150 for electrical connection to the heating element 200 is closed. A connecting hole 1511 is formed on the side wall of the electrode assembly 150, and a through groove 1611 is formed on the side wall of the mounting frame 160. The through groove 1611 is respectively connected to the connecting hole 1511 and the air outlet section 720.

[0075] In addition, a groove 1512 is formed on the outer wall of the electrode assembly 150 corresponding to the inner side of the through-slot 1611 , and the groove 1512 and the through-slot 1611 together form a transition section 730 .

[0076] In one embodiment, referring to Figures 3 and 6, the electrode assembly 150 includes an electrode ring 151 and a connector 152. The electrode ring 151 is in the shape of a stepped cylinder. The mounting frame 160 is sleeved outside the electrode ring 151. The air inlet section 710 and the connecting hole 1511 are both formed on the electrode ring 151. One end of the connector 152 is interference-fitted into the top port of the electrode ring 151, and the other end of the connector 152 is electrically connected to the heating element 200. In this embodiment, by dividing the electrode assembly 150 into two structures, the electrode ring 151 and the connector 152, the electrode ring 151 and the connector 152 are both parts with simple structures and easy to process and manufacture, thereby reducing the processing difficulty of the electrode assembly 150. It can be understood that in other embodiments of the present application, the above-mentioned electrode ring 151 and the connector 152 can also be connected as one piece, and this is not the only limitation here.

[0077] In one embodiment, referring to FIG9 , the connector 152 includes a first connector post 1521, a connector block 1522, and a second connector post 1523. The first connector post 1521 is fixedly connected to the electrode ring 151, the second connector post 1523 is connected to the heating element 200, and the connector block 1522 is connected between the first connector post 1521 and the second connector post 1523. The central axis of the first connector post 1521 is parallel to the central axis of the second connector post 1523 and is spaced apart. In this embodiment, the structural design of the connector 152 allows the electrode ring 151 located at the center of the housing assembly 100 to be connected to the heating element 200 on one side.

[0078] In one embodiment, referring to Figures 6 and 8, the mounting frame 160 includes a first sleeve 161, a support plate 162 and a positioning bone 163. The first sleeve 161 and the positioning bone 163 are respectively formed on opposite sides of the support plate 162. The first sleeve 161 is sleeved outside the electrode assembly 150, specifically, the first sleeve 161 is sleeved outside the electrode ring 151, the connecting seat 110 is sleeved outside the first sleeve 161, and the through groove 1611 is formed on the first sleeve 161. There can be one or more positioning bones 163, and the positioning bones 163 are arc-shaped. The atomizer tube 120 is sleeved on the positioning bones 163, that is, the atomizer tube 120 is supported by the positioning bones 163. The atomizer tube 120, the positioning bones 163 and the support plate 162 together enclose the atomizer chamber 500.

[0079] In one embodiment, the perimeter bone 165 is protruded from the support plate 162 , and a positioning block 164 for positioning the connecting electrode 140 is also formed on the support plate 162 .

[0080] In the embodiment of the present application, the positioning bone 163, the surrounding bone 165 and the positioning block 164 are all formed by the mounting frame 160, and the mounting frame 160 is an insulator. The mounting frame 160 can be integrally injection molded through an injection molding process. It is simple to manufacture and is simpler than forming the positioning bone 163, the surrounding bone 165 and the positioning block 164 from a connecting seat 110 made of a metal material, because the connecting seat 110 needs to be processed by CNC to manufacture the positioning bone 163, the surrounding bone 165 and the positioning block 164.

[0081] In one embodiment, referring to Figures 6 and 7 , the connector 110 includes a second sleeve 111, a base plate 112, and a third sleeve 113. The second sleeve 111 and the third sleeve 113 are coaxially arranged, and the inner and outer diameters of the second sleeve 111 are both larger than those of the third sleeve 113. The second sleeve 111 and the third sleeve 113 are formed on opposite sides of the base plate 112. The third sleeve 113 is sleeved outside the first sleeve 161. The support plate 162 is supported on the base plate 112. The second sleeve 111 is sleeved outside the atomizer tube 120. Specifically, the second sleeve 111 and the liquid storage tube 130 are connected on the outside of the atomizer tube 120.

[0082] In one embodiment, referring to FIG. 3 and FIG. 5 , the atomizing tube 120 and the liquid storage tube 130 are both sealedly connected to the nozzle 3000 via a sealing sleeve 4000 .

[0083] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. An atomizing assembly, characterized in that: It comprises a shell assembly and a heating element; the shell assembly is formed with an atomizing chamber and an air inlet passage which are interconnected; the heating element is arranged in the shell assembly along the longitudinal direction of the shell assembly; the heating element comprises an atomizing surface which is connected with the atomizing chamber; the air inlet passage has a connecting end which is connected with the atomizing chamber; the air inlet passage and the heating element are arranged with a spacing along the transverse direction of the shell assembly; a liquid storage space is formed between the air inlet passage and the heating element; the bottom surface of the liquid storage space is lower than the connecting end; the bottom surface of the liquid storage space is lower than the lower edge of the atomizing surface.

2. The atomizer assembly according to claim 1, characterized in that: The connecting end of the air inlet channel is higher than the bottom surface of the atomizing chamber; The bottom surface of the liquid storage space is flush with the bottom surface of the atomizing chamber; or, the bottom surface of the liquid storage space is lower than the bottom surface of the atomizing chamber.

3. The atomizer assembly according to claim 2, characterized in that: The connecting end of the air inlet passage is higher than the lower edge of the atomizing surface.

4. The atomizer assembly according to claim 2, characterized in that: A rib extends from the bottom surface of the atomizing chamber, the rib encloses a portion of the air inlet passage located in the atomizing chamber, and the rib and the heating element are spaced apart in a lateral direction of the shell assembly.

5. The atomizer assembly according to claim 1, characterized in that: The connecting end of the air inlet channel is flush with the bottom surface of the atomizing chamber; and the bottom surface of the liquid storage space is lower than the bottom surface of the atomizing chamber.

6. The atomizer assembly according to claim 1, characterized in that: The shell assembly also forms a liquid storage chamber, a ventilation channel and a collecting tank; the heating element connects the liquid storage chamber and the atomization chamber; the air inlet end of the ventilation channel is connected to the collecting tank; the air outlet end of the ventilation channel is connected to the liquid storage chamber.

7. The atomizing assembly according to claim 6, characterized in that: The collecting groove is formed in the atomizing chamber; the air inlet end of the ventilation channel extends to the bottom of the collecting groove.

8. The atomizer assembly according to claim 6, characterized in that: The connecting end of the air inlet channel is higher than the bottom surface of the atomizing chamber; the bottom surface of the liquid storage space is flush with the bottom surface of the atomizing chamber; the collecting groove is formed by the concave bottom surface of the atomizing chamber; the atomized liquid in the liquid storage space can flow into the collecting groove.

9. The atomizer assembly according to any one of claims 6 to 8, characterized in that: The housing assembly includes an airway wall forming the ventilation channel, and the airway wall is at least partially located in the atomization chamber; The airway wall is arranged horizontally opposite to the atomizing surface of the heating element; Alternatively, the airway wall is arranged transversely and obliquely opposite to the atomizing surface of the heating element.

10. The atomizer assembly according to any one of claims 1 to 8, characterized in that: The connection end of the air inlet passage is arranged away from the central axis of the shell assembly.

11. The atomizer assembly according to any one of claims 1 to 8, characterized in that: The air inlet passage comprises an air inlet section, a transition section and an air outlet section; the air inlet section, the transition section and the air outlet section are connected in sequence, the air inlet section is used to connect with the outside, and the central axis of the air inlet section coincides with the central axis of the shell assembly; the air outlet section is connected with the atomization chamber, and the central axis of the air outlet section is set away from the central axis of the shell assembly; the transition section is connected between the air inlet section and the air outlet section.

12. The atomizer assembly according to claim 11, characterized in that: The shell assembly includes an atomizer tube, a mounting frame, a connecting seat and an electrode assembly; the mounting frame is sleeved on the outside of the electrode assembly, the connecting seat is sleeved outside the mounting frame, the air inlet section is formed at the center of the electrode assembly, the air outlet section is formed on the mounting frame, and the transition section is formed by the electrode assembly, the mounting frame and the connecting seat; the atomizer tube and the mounting frame together form the atomizer chamber.

13. The atomizer assembly according to claim 12, characterized in that: The electrode assembly is opened at one end toward the battery assembly, and is closed at one end for electrically connecting to the heating element. A connecting hole is formed on the side wall of the electrode assembly, and a through groove is formed on the side wall of the mounting frame, and the through groove is respectively connected to the connecting hole and the air outlet section.

14. The atomizer assembly according to claim 13, characterized in that: The mounting frame includes a first sleeve, a support plate and a positioning bone; the first sleeve and the positioning bone are respectively formed on opposite sides of the support plate; the first sleeve is sleeved outside the electrode assembly, the connecting seat is sleeved outside the first sleeve, and the through groove is formed in the first sleeve.

15. An aerosol generating device, characterized in that: It comprises a battery assembly, a suction nozzle and an atomizer assembly according to any one of claims 1 to 14, wherein the suction nozzle is connected to the atomizer assembly, and the battery assembly is electrically connected to the atomizer assembly.

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