Atomization assembly and aerosol generating device

Abstract

The present disclosure discloses an atomization assembly and an aerosol generating device. The atomization assembly includes a housing assembly and a heating element. The housing assembly is formed with an atomization cavity and an air inlet channel in communication with each other. The heating element is disposed in the housing assembly horizontally. The air inlet channel has a connection end in communication with the atomization cavity. The air inlet channel and the heating element are spaced apart perpendicularly. 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 connection end. The bottom surface of the liquid storage space is lower than the lower edge of an atomization surface.

Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation application of International application No. PCT / CN2024 / 100940, filed on June 24, 2024, which claims priority to Chinese Patent Application No. 202322407360.0, filed on September 5, 2023. The entire disclosure of the prior application is hereby incorporated by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the field of aerosol generating technologies, including to an atomization assembly and an aerosol generating device.BACKGROUND

[0003] The statement herein merely provides background information related to the present disclosure and does not necessarily constitute the prior art. Generally, an atomization assembly has a liquid storage cavity. While ensuring structural sealing property, the liquid storage cavity is generally vented by using a porous heating element and a vent channel. After e-liquid is injected into the liquid storage cavity, the heating element generally absorbs atomization liquid to generate a particular negative pressure of the liquid storage cavity to lock the atomization liquid, or the vent channel stores the atomization liquid leaked from the liquid storage cavity to the vent channel. However, when a large fluctuation occurs in air pressure in the liquid storage cavity due to temperature impact, a large positive pressure difference may be generated between the liquid storage cavity and the vent channel and / or the heating element. The positive pressure difference may force out the atomization liquid stored in the vent channel and / or the heating element, finally causing leakage of the atomization liquid. The leaked atomization liquid flows to an air inlet channel in communication with the atomization cavity. When the atomization liquid is a high-viscosity liquid, the viscosity of the high-viscosity liquid changes greatly with the temperature. Specifically, a higher temperature indicates a lower viscosity, and a lower temperature indicates a higher viscosity. The high-viscosity liquid entering the air inlet channel is cooled and frozen due to contact with the air inlet channel having a low temperature, and even blocks the air inlet channel. Once the air inlet channel is blocked, an airflow sensor configured to be started by sensing airflow cannot be started, thus affecting the inhalation experience of users.SUMMARYTechnical Problems

[0004] An objective of the present disclosure is to provide an atomization assembly and an aerosol generating device, so as to resolve the technical problem in the existing technology that an airflow sensor cannot be started since an air inlet channel is blocked due to leakage of atomization liquid.Technical Solutions

[0005] The present disclosure adopt the following technical solutions:

[0006] According to an aspect, an atomization assembly is provided, including a housing assembly and a heating element. The housing assembly is formed with an atomization cavity and an air inlet channel in communication with each other. The heating element is disposed in the housing assembly in a longitudinal direction of the housing assembly. The heating element includes an atomization surface in communication with the atomization cavity. The air inlet channel has a connection end in communication with the atomization cavity. The air inlet channel and the heating element are spaced apart in a transverse direction of the housing 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 connection end. The bottom surface of the liquid storage space is lower than the lower edge of the atomization surface.

[0007] In an aspect, the connection end of the air inlet channel is higher than the bottom surface of the atomization cavity.

[0008] The bottom surface of the liquid storage space is flush with the bottom surface of the atomization cavity. Alternatively, the bottom surface of the liquid storage space is lower than the bottom surface of the atomization cavity.

[0009] In an aspect, the connection end of the air inlet channel is higher than the lower edge of the atomization surface.

[0010] In an aspect, a surrounding rib extends from the bottom surface of the atomization cavity. The surrounding rib surrounds the part of the air inlet channel located in the atomization cavity. The surrounding rib and the heating element are spaced apart in the transverse direction of the housing assembly.

[0011] In an aspect, the connection end of the air inlet channel is flush with the bottom surface of the atomization cavity. The bottom surface of the liquid storage space is lower than the bottom surface of the atomization cavity.

[0012] In an aspect, a liquid storage cavity, a vent channel, and a collection groove are further formed in the housing assembly. The heating element is in communication with the liquid storage cavity and the atomization cavity. An air inlet end of the vent channel is in communication with the collection groove. An air outlet end of the vent channel is in communication with the liquid storage cavity.

[0013] In an aspect, the collection groove is formed in the atomization cavity. The air inlet end of the vent channel extends to the bottom of the collection groove.

[0014] In an aspect, the connection end of the air inlet channel is higher than the bottom surface of the atomization cavity. The bottom surface of the liquid storage space is flush with the bottom surface of the atomization cavity. The collection groove is formed by indent of the bottom surface of the atomization cavity. Atomization liquid in the liquid storage space is capable of flowing into the collection groove.

[0015] In an aspect, the connection end of the air inlet channel is disposed offset from the central axis of the housing assembly.

[0016] In an aspect, 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 in communication with each other sequentially. The air inlet section is configured to be in communication with the outside. The central axis of the air inlet section coincides with the central axis of the housing assembly. The air outlet section is in communication with the atomization cavity. The central axis of the air outlet section is disposed offset from the central axis of the housing assembly. The transition section is connected between the air inlet section and the air outlet section.

[0017] In an aspect, the housing assembly includes an atomization tube, a mounting frame, a connection base, and an electrode assembly. The mounting frame is sleeved outside the electrode assembly. The connection base is sleeved outside the mounting frame. The air inlet section is formed in the center of the electrode assembly. The air outlet section is formed on the mounting frame. The transition section is jointly surrounded by the electrode assembly, the mounting frame, and the connection base. The atomization tube and the mounting frame jointly surround the atomization cavity.

[0018] In an aspect, the end of the electrode assembly facing the battery assembly is open, and the end of the electrode assembly configured to be electrically connected to the heating element is closed. A connection hole is formed in the side wall of the electrode assembly. A through groove is formed in the side wall of the mounting frame. The through groove is in communication with the connection hole and the air outlet section separately.

[0019] In an aspect, the mounting frame includes a first sleeve, a support plate, and a positioning rib. The first sleeve and the positioning rib are formed on opposite sides of the support plate respectively. The first sleeve is sleeved outside the electrode assembly. The connection base is sleeved outside the first sleeve. The through groove is formed in the first sleeve.

[0020] In an aspect, the housing assembly includes an air channel wall forming the vent channel. The air channel wall is at least partially located in the atomization cavity.

[0021] The air channel wall is disposed transversely toward the atomization surface of the heating element.

[0022] Alternatively, the air channel wall is disposed transversely obliquely toward the atomization surface of the heating element.

[0023] According to an aspect, an aerosol generating device is provided, including a battery assembly, a suction nozzle, and the foregoing atomization assembly. The suction nozzle is disposed in communication with the atomization assembly. The battery assembly is electrically connected to the atomization assembly.Beneficial Effects

[0024] The atomization assembly according to the present disclosure has the following beneficial effects. The heating element is disposed in the housing assembly in the longitudinal direction of the housing assembly, and the air inlet channel and the heating element are spaced apart in the transverse direction of the housing assembly, so that the atomization liquid leaked from the heating element does not directly flow to the air inlet channel. Also, the liquid storage space is formed between the air inlet channel and the heating element, and the bottom surface of the liquid storage space is lower than the connection end of the air inlet channel, so that the atomization liquid leaked from the heating element may directly flow to the liquid storage space for storage, and does not flow from the liquid storage space to the air inlet channel. In this way, blockage of the air inlet channel caused by inflow of the atomization liquid can be reduced, so that airflow in the atomization assembly is smooth, and an airflow sensor can be started in time when a user inhales, thereby improving the inhalation experience of the user.

[0025] The aerosol generating device according to the present disclosure has the following beneficial effects. By means of the design of the foregoing atomization assembly, the aerosol generating device quickly responds to inhalation, thereby improving the inhalation experience of users.BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly explain the technical solutions in the present disclosure, the accompanying drawings that need to be used in the description of the aspects or exemplary technologies will be briefly introduced below. It is apparent that the accompanying drawings in the following description are only some examples of the present disclosure. For those of ordinary skill in the art, other accompanying drawings may be obtained from these accompanying drawings without making creative labor.

[0027] FIG. 1 is a schematic three-dimensional structure view of an aerosol generating device according an aspect of the present disclosure;

[0028] FIG. 2 is a schematic partially exploded view of an aerosol generating device according an aspect of the present disclosure;

[0029] FIG. 3 is a schematic exploded view of a suction nozzle and an atomization assembly of an aerosol generating device according an aspect of the present disclosure;

[0030] FIG. 4 is a schematic lateral structure view of the aerosol generating device in FIG. 1;

[0031] FIG. 5 is a schematic cross-sectional view of the aerosol generating device in FIG. 4, taken along section line A-A;

[0032] FIG. 6 is a schematic enlarged connection view of part B in FIG. 5;

[0033] FIG. 7 is a schematic assembly view of a connection base, a mounting frame, a heating element, a seal member, a connection electrode, and an electrode assembly of the aerosol generating device in FIG. 6;

[0034] FIG. 8 is a schematic structure view of a mounting frame of the aerosol generating device in FIG. 6; and

[0035] FIG. 9 is a schematic structure view of a connector of the aerosol generating device in FIG. 6.Reference numerals in the drawings:

[0036] 1000: atomization assembly; 100: housing assembly; 110: connection base; 111: second sleeve; 112: bottom plate; 113: third sleeve; 120: atomization tube; 121: atomization section; 122: smoke guide section; 1221: smoke guide channel; 123: step plate; 1231: through opening; 130: liquid storage tube; 140: connection electrode; 150: electrode assembly; 151: electrode ring; 1511: connection hole; 1512: groove; 152: connector; 1521: first connection post; 1522: connection block; 1523: second connection post; 160: mounting frame; 161: first sleeve; 1611: through groove; 162: support plate; 163: positioning rib; 164: positioning block; 165: surrounding rib; 200: heating element; 210: liquid inlet surface; 220: atomization surface; 300: seal member; 400: liquid storage cavity; 500: atomization cavity; 600: vent channel; 610: air channel wall; 700: air inlet channel; 710: air inlet section; 720: air outlet section; 730: transition section; 740: connection end; 800: liquid storage space; 900: collection groove; 2000: battery assembly; 3000: suction nozzle; and 4000: seal sleeve.DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following further describes the present disclosure in detail with reference to the accompanying drawings and the aspects. It should be understood that specific aspects described herein are only for explaining the present invention and are not intended to limit the present disclosure.

[0038] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, the component may be directly on the other component or indirectly disposed on the other component. When a component is referred to as being "connected to" another component, the component may be directly connected or indirectly connected to the other component. The orientation or positional relationships indicated by the terms such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the accompanying drawings, which are merely for ease of description, and do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation. Therefore, the terms shall not be construed as a limitation to the present disclosure. For those of ordinary skill in the art, the specific meanings of the foregoing terms may be understood according to specific circumstances. The terms such as "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance or implicitly specifying the quantity of technical features. "Plurality of" means two or more, unless otherwise definitely and specifically limited.

[0039] To illustrate the technical solutions provided in the present disclosure, detailed descriptions are provided below in conjunction with specific drawings and aspects.

[0040] Generally, an atomization assembly has a liquid storage cavity. While ensuring structural sealing property, the liquid storage cavity is generally vented by using a porous heating element and / or a vent channel. After e-liquid is injected into the liquid storage cavity, the heating element generally absorbs atomization liquid to generate a particular negative pressure of the liquid storage cavity to lock the atomization liquid, or the vent channel stores the atomization liquid leaked from the liquid storage cavity to the vent channel. However, when a large fluctuation occurs in air pressure in the liquid storage cavity due to temperature impact, a large positive pressure difference may be generated between the liquid storage cavity and the heating element and / or the vent channel. The positive pressure difference may force out the atomization liquid stored in the heating element and / or the vent channel, finally causing leakage of the atomization liquid. The leaked atomization liquid flows to an air inlet channel in communication with the atomization cavity. When the atomization liquid is a high-viscosity liquid, the viscosity of the high-viscosity liquid changes greatly with the temperature. A higher temperature indicates a lower viscosity, and a lower temperature indicates a higher viscosity. The high-viscosity liquid entering the air inlet channel is cooled and frozen due to contact with the air inlet channel having a low temperature, and even blocks the air inlet channel. Once the air inlet channel is blocked, an airflow sensor configured to be started by sensing airflow cannot be started, thus affecting the inhalation experience of users.

[0041] Specifically, due to the temperature difference between day and night, the atomization assembly is inevitably subject to liquid leakage. When a large amount of atomization liquid in the liquid storage cavity is consumed with only a small portion remaining, a large enclosed cavity will be formed above the atomization liquid. When the temperature drops at night, the cavity pressure in the liquid storage cavity decreases and the negative pressure rises. To maintain the air-liquid equilibrium, external air is forced into the liquid storage cavity through the vent channel or the heating element, thereby establishing a new equilibrium. When the temperature rises during the day, the temperature inside the liquid storage cavity increases, the cavity pressure in the liquid storage cavity rises and the negative pressure drops. To maintain the equilibrium, the pressure inside the liquid storage cavity will squeeze the atomization liquid outwards, resulting in atomization liquid leakage. If the leaked atomization liquid flows into the air inlet channel, the foregoing blockage of the air inlet channel will occur.

[0042] To resolve the foregoing problem, the inventor of the present disclosure performs intense research for a long time, and finally provides an atomization assembly 1000 and an aerosol generating device. A heating element 200 is disposed in a housing assembly 100 in a longitudinal direction (e.g., horizontally) of the housing assembly 100, a liquid storage space 800 is formed between an air inlet channel 700 and the heating element 200, and the bottom surface of the liquid storage space 800 is lower than a connection end 740 of the air inlet channel 700, so that liquid leaked from the heating element 200 may flow to the liquid storage space 800 instead of flowing to the air inlet channel 700, thereby reducing blockage of the air inlet channel 700 caused by inflow of atomization liquid, ensuring smooth airflow, ensuring that an airflow sensor can be started in time by sensing airflow, and improving the inhalation experience of users.

[0043] Referring to FIG. 1 and FIG. 2, examples of the present disclosure provide an aerosol generating device, including an atomization assembly 1000, a battery assembly 2000, and a suction nozzle 3000. The battery assembly 2000 is electrically connected to the atomization assembly 1000. The battery assembly 2000 is configured to supply power to the atomization assembly 1000, so that the atomization assembly 1000 starts to atomize. The atomization assembly 1000 is configured to atomize atomization liquid into an aerosol. The suction nozzle 3000 is in communication with the atomization assembly 1000 and is configured to deliver the aerosol generated by the atomization assembly 1000 to the oral cavity of a smoker.

[0044] Referring to FIG. 2 to FIG. 6 together, the atomization assembly 1000 includes a housing assembly 100 and a heating element 200. The housing assembly 100 is formed with an atomization cavity 500 and an air inlet channel 700 in communication with each other. The heating element 200 is disposed in the housing assembly 100 in a longitudinal direction of the housing assembly 100. The heating element 200 includes an atomization surface 220 in communication with the atomization cavity 500. The air inlet channel 700 has a connection end 740 in communication with the atomization cavity 500. The air inlet channel 700 and the heating element 200 are spaced apart in a transverse direction of the housing 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 connection end 740. The bottom surface of the liquid storage space 800 is lower than the lower edge of the atomization surface 220.

[0045] It should be noted that the longitudinal direction herein refers to a direction extending approximately in an axial direction of the housing assembly 100. For example, the heating element 200 is disposed in a direction parallel to the axial direction of the housing assembly 100, or the heating element 200 is disposed at an oblique angle with the axial direction of the housing assembly 100. Generally, the extension tendency of the heating element 200 is the same as the axial direction of the housing assembly 100. To be specific, the heating element 200 is mounted on the side surface of the atomization cavity 500. A liquid inlet surface 210 and the atomization surface 220 of the heating element 200 are disposed approximately parallel to a direction of airflow in the atomization cavity 500.

[0046] The transverse direction herein refers to a direction perpendicular to the longitudinal direction. For example, when the housing assembly 100 is disposed vertically, the transverse direction refers to a horizontal direction.

[0047] In the atomization assembly 1000 according to examples of the present disclosure, the heating element 200 is disposed in the housing assembly 100 in the longitudinal direction of the housing assembly 100, and the air inlet channel 700 and the heating element 200 are spaced apart in the transverse direction of the housing assembly 100, so that the atomization liquid leaked from the heating element 200 does not directly flow to the air inlet channel 700. Also, the 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 atomization surface 220, so that the atomization liquid leaked from the heating element 200 may directly flow to the liquid storage space 800 for storage. 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 atomization liquid in the liquid storage space 800 does not flow from the liquid storage space 800 to the air inlet channel 700. In this way, blockage of the air inlet channel 700 caused by inflow of the atomization liquid can be reduced, so that airflow in the atomization assembly 1000 is smooth, and an airflow sensor can be started in time when a user inhales, thereby improving the inhalation experience of the user.

[0048] In addition, since the liquid storage space 800 is in communication with the heating element 200, when a negative pressure is restored in the liquid storage cavity 400 for storing the atomization liquid, the heating element 200 can further draw back a part of the atomization liquid leaked into the liquid storage space 800, thereby ensuring smooth inhalation during an inhalation process.

[0049] In an aspect, referring to FIG. 6 to FIG. 8, the connection end 740 of the air inlet channel 700 is higher than the bottom surface of the atomization cavity 500. The bottom surface of the liquid storage space 800 is flush with the bottom surface of the atomization cavity 500. In this aspect, the connection end 740 of the air inlet channel 700 is disposed at a particular height in the atomization cavity 500. Therefore, even if the bottom surface of the liquid storage space 800 is parallel to the bottom surface of the atomization cavity 500, the atomization liquid leaked from the heating element 200 cannot flow from the liquid storage space 800 to the air inlet channel 700. Also, since the bottom surface of the liquid storage space 800 is flush with the bottom surface of the atomization cavity 500, the liquid storage space 800 may be formed without forming a groove in the bottom surface of the atomization cavity 500, thereby simplifying the processing technology of the housing assembly 100. It may be understood that in other aspects of the present disclosure, to accommodate more atomization liquid, the bottom surface of the liquid storage space 800 may alternatively be set to be lower than the bottom surface of the atomization cavity 500. To be specific, a groove is formed in the bottom surface of the atomization cavity 500. This is not intended as an exclusive limitation herein.

[0050] In an aspect, referring to FIG. 6 to FIG. 8, the air inlet channel 700 extends from the bottom surface of the atomization cavity 500 to the atomization cavity 500. A surrounding rib 165 extends upward from the bottom surface of the atomization cavity 500. The surrounding rib 165 surrounds the part of the air inlet channel 700 located in the atomization cavity 500. The surrounding rib 165 and the heating element 200 are spaced apart in the transverse direction of the housing assembly 100.

[0051] In an aspect, since the surrounding rib 165 is disposed and the surrounding rib 165 and the heating element 200 are spaced apart relatively, a height parameter of the surrounding rib 165 needs to be properly controlled to prevent an atomized aerosol from impinging on the surrounding rib 165 and causing condensation, thereby ensuring a minimum condensation. Specifically, the height of the surrounding rib 165 may be measured according to multiple tests. For example, the surrounding rib 165 is set to different heights, to measure the amount of condensation on the surrounding rib 165, and an optimal design height of the surrounding rib 165 is obtained by repeating experiments for multiple times.

[0052] In an aspect, referring to FIG. 6, the connection end 740 of the air inlet channel 700 is higher than the lower edge of the atomization surface 220. In this way, when the atomization liquid in the liquid storage space 800 is higher than the lower edge of the atomization surface 220, the atomization liquid does not flow to the air inlet channel 700, thereby improving the storage capacity of the liquid storage space 800. In addition, when the atomization liquid in the liquid storage space 800 is higher than the lower edge of the atomization surface 220, the heating element 200 may atomize the atomization liquid higher than the lower edge of the atomization surface 220 during inhalation by a user, so that the atomization liquid is not higher than the connection end 740 of the air inlet channel 700, and does not enter the air inlet channel 700.

[0053] In another aspect of the present disclosure, the connection end 740 of the air inlet channel 700 is flush with the bottom surface of the atomization cavity 500. The bottom surface of the liquid storage space 800 is lower than the bottom surface of the atomization cavity 500. In this aspect, the air inlet channel 700 does not extend from the bottom of the atomization cavity 500 to the atomization cavity 500. To be specific, the surrounding rib 165 does not need to be disposed in the atomization cavity 500. In addition, to prevent the atomization liquid in the liquid storage space 800 from flowing to the atomization cavity 500, the bottom surface of the liquid storage space 800 is further designed to be lower than the bottom surface of the atomization cavity 500. To be specific, a groove needs to be formed in the bottom surface of the atomization cavity 500 to accommodate the atomization liquid.

[0054] In an aspect, referring to FIG. 5 and FIG. 6, the housing assembly 100 is further formed with a liquid storage cavity 400. The liquid storage cavity 400 and the atomization cavity 500 are spaced apart from each other. The heating element 200 is in communication with the liquid storage cavity 400 and the atomization cavity 500. The liquid inlet surface 210 of the heating element 200 is in communication with the liquid storage cavity 400. The atomization liquid in the liquid storage cavity 400 enters the heating element 200 through the liquid inlet surface 210, and is atomized on the atomization surface 220 to form an aerosol. The airflow entering the atomization cavity 500 from the air inlet channel 700 carries the aerosol to the suction nozzle 3000 for inhalation by a user.

[0055] In an aspect, referring to FIG. 6, the housing assembly 100 is further formed with a vent channel 600 and a collection groove 900. An air inlet end of the vent channel 600 is in communication with the collection groove 900. An air outlet end of the vent channel 600 is in communication with the liquid storage cavity 400. The vent channel 600 is disposed to realize ventilation of the liquid storage cavity 400. The collection groove 900 is provided, so that when the air pressure in the liquid storage cavity 400 increases excessively and the atomization liquid in the liquid storage cavity 400 is leaked to the vent channel 600 or even flows out of the vent channel 600, the atomization liquid flowing out of the vent channel 600 may be stored by using the collection groove 900, to prevent the atomization 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 cavity 400 is restored, the atomization liquid in the collection groove 900 may further be drawn back into the liquid storage cavity 400 through the vent channel 600, to reduce leakage of the atomization liquid and ensure smooth ventilation.

[0056] In an aspect, referring to FIG. 6, the collection groove 900 is formed in the atomization cavity 500. The air inlet end of the vent channel 600 is in communication with the atomization cavity 500. To be specific, during ventilation, airflow in the atomization cavity 500 enters the liquid storage cavity 400 through the vent channel 600 for ventilation. It may be understood that in other aspects of the present disclosure, the air inlet end of the vent channel 600 may alternatively not be in communication with the atomization cavity 500, but in direct communication with external airflow. In this case, the collection groove 900 is not formed in the atomization cavity 500, but is formed in the side wall of the housing assembly 100, and the collection groove 900 is in communication with the external atmosphere.

[0057] In an aspect, referring to FIG. 6, the collection groove 900 is formed at the bottom of the atomization cavity 500. In this way, a risk that the atomization liquid in the collection groove 900 flows into the air inlet channel 700 can be reduced. In other aspects of the present disclosure, when the height of the connection end 740 of the air inlet channel 700 is high, the collection groove 900 may be formed at a non-bottom position of the atomization cavity 500, provided that the collection groove 900 is ensured to be lower than the connection end 740 of the air inlet channel 700.

[0058] In an aspect, referring to FIG. 6, the collection groove 900 is formed by indent of the bottom of the atomization cavity 500.

[0059] In an aspect, referring to FIG. 6, the connection end 740 of the air inlet channel 700 is higher than the bottom surface of the atomization cavity 500. The bottom surface of the liquid storage space 800 is flush with the bottom surface of the atomization cavity 500. The collection groove 900 is formed by indent of the bottom surface of the atomization cavity 500. The atomization liquid in the liquid storage space 800 may flow to the collection groove 900. To be specific, both the atomization liquid leaked from the heating element 200 and the atomization liquid leaked from the vent channel 600 finally flow to the collection groove 900 for collection. The atomization liquid in the collection groove 900 may be drawn back by the vent channel 600, or may be drawn back by the heating element 200.

[0060] In an aspect, referring to FIG. 6, the air inlet end of the vent channel 600 extends to the bottom of the collection groove 900. In this way, when the negative pressure in the liquid storage cavity 400 is restored, even if there is only a small amount of atomization liquid in the collection groove 900, the atomization liquid can be drawn back by the vent channel 600, thereby ensuring the draw-back effect by the vent channel 600. It may be understood that in other aspects of the present disclosure, the connection end 740 of the vent channel 600 may alternatively extend to a position above the bottom of the collection groove 900, so that when the atomization liquid is collected in the collection groove 900, the vent channel 600 can further ensure smooth ventilation.

[0061] In an aspect, referring to FIG. 6, the air inlet channel 700 extends from the bottom surface of the atomization cavity 500 to the atomization cavity 500. A surrounding rib 165 extends upward from the bottom surface of the atomization cavity 500. The surrounding rib 165 surrounds the part of the air inlet channel 700 located in the atomization cavity 500. The surrounding rib 165 and the heating element 200 are spaced apart in the transverse direction of the housing assembly 100. The collection groove 900 is formed by indent of the bottom of the atomization cavity 500.

[0062] In an aspect, referring to FIG. 6, the housing assembly 100 includes an air channel wall 610 forming the vent channel 600. The air channel wall 610 is at least partially located in the atomization cavity 500. According to the present disclosure, the atomization surface 220 of the heating element 200 is disposed in communication with the atomization cavity 500, so that the atomization surface 220 can generate a high-temperature aerosol, thereby causing a high temperature in the atomization cavity 500. Also, the air channel wall 610 of the vent channel 600 is at least partially located in the atomization cavity 500, so that the temperature in the atomization cavity 500 may be transferred, through the air channel wall 610, to a high-viscosity atomization liquid in the vent channel 600 and near the vent channel 600, thereby improving the fluidity of the atomization liquid, and enabling the smooth ventilation of the atomization liquid.

[0063] In an aspect, referring to FIG. 6, the vent channel 600 is disposed transversely toward the heating element 200. To be specific, the air channel wall 610 of the vent channel 600 is a wall surface disposed toward the atomization surface 220 of the heating element 200. The aerosol atomized by the heating element 200 impinges on a wall surface opposite to the heating element 200, so that the air channel wall 610 rapidly heats up, and rapidly heats the atomization liquid in the vent channel 600 and near the vent channel 600. In addition, after a test, when the air channel wall 610 of the vent channel 600 is the wall surface disposed toward the atomization surface 220 of the heating element 200, the temperature in the vent channel 600 is relatively higher. It may be understood that in other aspects of the present disclosure, the air channel wall 610 of the vent channel 600 may alternatively be disposed transversely obliquely toward the atomization surface 220 of the heating element 200. To be specific, the air channel wall 610 of the vent channel 600 is a wall surface disposed obliquely toward the atomization surface 220 of the heating element 200. Similarly, the vent channel 600 can also rapidly heat up.

[0064] In an aspect, referring to FIG. 6, the connection end 740 of the air inlet channel 700 is disposed offset from the central axis of the housing assembly 100. In this aspect, the heating element 200 is longitudinally disposed in the housing assembly 100, and the heating element 200 needs to occupy a transverse space of the housing assembly 100. If the air inlet channel 700 is further disposed in the center of the housing assembly 100 as in the past, the air inlet channel 700 is in contact with or is excessively close to the heating element 200. In this aspect, the connection end 740 of the air inlet channel 700 is disposed offset from the central axis of the housing assembly 100, so that the connection end 740 of the air inlet channel 700 is far away from the heating element 200 as far as possible while ensuring smooth air inlet, to reduce possibilities that the atomization liquid leaked from the heating element 200 directly flows to the air inlet channel 700 and that the aerosol generated at the heating element 200 is concentrated by the surrounding rib 165 of the vent channel 600.

[0065] In an aspect, referring to FIG. 6, 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 in communication with each other sequentially. The air inlet section 710 is configured to be in communication with the battery assembly 2000. 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 in communication with the atomization cavity 500. The central axis of the air outlet section 720 is disposed 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 this aspect of the present disclosure, the air inlet section 710 and the housing assembly 100 are disposed coaxially, to ensure that the air inlet section 710 and the battery assembly 2000 are disposed coaxially, so that airflow from the battery assembly 2000 can smoothly enter the air inlet section 710, thereby ensuring smooth airflow.

[0066] In an aspect, referring to FIG. 3, FIG. 5, and FIG. 8, the housing assembly 100 includes a mounting frame 160, an atomization tube 120, and a liquid storage tube 130. The liquid storage tube 130 and the atomization tube 120 jointly surround the liquid storage cavity 400. The mounting frame 160 and the atomization tube 120 jointly surround the atomization cavity 500.

[0067] Specifically, the atomization tube 120 includes an atomization section 121 and a smoke guide section 122 in communication with each other. The caliber of the atomization section 121 is greater than the caliber of the smoke guide section 122. The atomization section 121 is connected to the smoke guide section 122 through a step plate 123. The atomization section 121 is sleeved outside the mounting frame 160. The liquid storage tube 130 is sleeved outside the atomization section 121 and the smoke guide section 122. The liquid storage tube 130 and the smoke guide section 122 are spaced apart to form the liquid storage cavity 400. The heating element 200 is mounted in the atomization section 121 to divide an internal cavity of the atomization section 121 to form the atomization cavity 500 and a buffer tank. The atomization cavity 500 is in communication with the smoke guide section 122. Specifically, the atomization cavity 500 is in communication with a smoke guide channel 1221 of the smoke guide section 122. A through opening 1231 is formed in the step plate 123. The atomization liquid in the liquid storage cavity 400 flows to the buffer tank through the through opening 1231 for the heating element 200 to be atomized. In this aspect, the atomization tube 120 is divided into the atomization section 121 for atomization and the smoke guide section 122 for smoke guide, and the caliber of the atomization section 121 is set to be large relative to the caliber of the smoke guide section 122, so that there is enough space for mounting the heating element 200. Also, the liquid storage cavity 400 is formed between the liquid storage tube 130 and the smoke guide section 122, and the liquid storage tube 130 can be sleeved outside the atomization section 121, so that the outer diameter of the entire housing assembly 100 is not enlarged due to an enlarging caliber of the atomization section 121. To be specific, lateral mounting of the heating element 200 is implemented without enlarging the entire outer diameter of the atomization assembly 1000, thereby facilitating volume miniaturization. Also, opposite sides of the heating element 200 can be in communication with the atomization cavity 500 and the liquid storage cavity 400 respectively. In addition, in the present disclosure, the buffer tank is actually a part of the liquid storage cavity 400.

[0068] In an aspect, referring to FIG. 3 and FIG. 6, the heating element 200 is mounted in the atomization section 121 in a sealed manner by using a seal member 300. Specifically, the seal member 300 is mounted in an inner cavity of the atomization section 121. The seal member 300 is sleeved on an outer periphery of the heating element 200. The peripheral outer wall of the seal member 300 abuts against the inner wall of the atomization section 121 and the mounting frame 160 separately, thereby implementing a sealed connection between the heating element 200, the atomization section 121, and the mounting frame 160 through the seal member 300.

[0069] In an aspect, referring to FIG. 3 and FIG. 6, the housing assembly 100 further includes an electrode assembly 150 and a connection electrode 140. The electrode assembly 150 and the connection electrode 140 are mounted on the mounting frame 160 separately. The electrode assembly 150 and the connection electrode 140 are connected to two electrodes of the heating element 200 respectively. The electrode assembly 150 and the connection electrode 140 are connected to the battery assembly 2000 separately, so that the battery assembly 2000 supplies power to the heating element 200.

[0070] In an aspect, referring to FIG. 2 and FIG. 6, the housing assembly 100 further includes a connection base 110. The mounting frame 160 is mounted on the connection base 110. The connection base 110 forms a mechanical connection with the battery assembly 2000.

[0071] In an aspect, referring to FIG. 2 and FIG. 6, the connection base 110 is a conductor. One end of the connection electrode 140 abuts against the connection base 110, and the other end of the connection electrode 140 is connected to the heating element 200. The connection 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 may be formed through the connection base 110 and the connection electrode 140. In aspects of the present disclosure, the connection electrode 140 and the connection base 110 are separately disposed, thereby reducing the processing difficulty of the connection base 110 and the connection electrode 140. It may be understood that in other aspects of the present disclosure, the connection electrode 140 and the connection base 110 may alternatively have an integral connection structure. This is not intended as an exclusive limitation herein.

[0072] In an aspect, referring to FIG. 6, the mounting frame 160 is sleeved outside the electrode assembly 150. The connection base 110 is sleeved outside the mounting frame 160. The air inlet section 710 of the air inlet channel 700 is formed in the center of the electrode assembly 150. The air outlet section 720 is formed on the mounting frame 160. The transition section 730 is jointly surrounded by the electrode assembly 150, the mounting frame 160, and the connection base 110.

[0073] Specifically, referring to FIG. 6 and FIG. 8, the end of the electrode assembly 150 facing the battery assembly 2000 is open, and the end of the electrode assembly 150 configured to be electrically connected to the heating element 200 is closed. A connection hole 1511 is formed in the side wall of the electrode assembly 150. A through groove 1611 is formed in the side wall of the mounting frame 160. The through groove 1611 is in communication with the connection hole 1511 and the air outlet section 720 separately.

[0074] In addition, a groove 1512 is further formed in the inner side of the through groove 1611 corresponding to the outer side wall of the electrode assembly 150. The groove 1512 and the through groove 1611 jointly form the transition section 730.

[0075] In an aspect, referring to FIG. 3 and FIG. 6, the electrode assembly 150 includes an electrode ring 151 and a connector 152. The electrode ring 151 has a step-cylindrical shape. The mounting frame 160 is sleeved outside the electrode ring 151. The air inlet section 710 and the connection hole 1511 are both formed on the electrode ring 151. One end of the connector 152 is inserted to a top port of the electrode ring 151 by interference, and the other end of the connector 152 is electrically connected to the heating element 200. In this aspect, the electrode assembly 150 is divided into two structures, namely, the electrode ring 151 and the connector 152. Both the electrode ring 151 and the connector 152 are parts that have a simple structure and are convenient to be processed and manufactured, thereby reducing the processing difficulty of the electrode assembly 150. It may be understood that in other aspects of the present disclosure, the electrode ring 151 and the connector 152 may alternatively be integrally connected. This is not intended as an exclusive limitation herein.

[0076] In an aspect, referring to FIG. 9, the connector 152 includes a first connection post 1521, a connection block 1522, and a second connection post 1523. The first connection post 1521 is fixedly connected to the electrode ring 151. The second connection post 1523 is connected to the heating element 200. The connection block 1522 is connected between the first connection post 1521 and the second connection post 1523. The central axis of the first connection post 1521 and the central axis of the second connection post 1523 are spaced apart in parallel. In this aspect, by means of the structural design of the connector 152, the electrode ring 151 located in the center of the housing assembly 100 may be connected to the heating element 200 on one side.

[0077] In an aspect, referring to FIG. 6 and FIG. 8, the mounting frame 160 includes a first sleeve 161, a support plate 162, and a positioning rib 163. The first sleeve 161 and the positioning rib 163 are formed on opposite sides of the support plate 162 respectively. The first sleeve 161 is sleeved outside the electrode assembly 150. Specifically, the first sleeve 161 is sleeved outside the electrode ring 151. The connection base 110 is sleeved outside the first sleeve 161. The through groove 1611 is formed in the first sleeve 161. There may be one or more positioning ribs 163. The positioning rib 163 has an arc shape. The atomization tube 120 is sleeved on the positioning rib 163. To be specific, the atomization tube 120 is supported by the positioning rib 163. The atomization tube 120, the positioning rib 163, and the support plate 162 jointly surround the atomization cavity 500.

[0078] In an aspect, the surrounding rib 165 protrudes from the support plate 162. A positioning block 164 for positioning the connection electrode 140 is also formed on the support plate 162.

[0079] In aspects of the present disclosure, the positioning rib 163, the surrounding rib 165, and the positioning block 164 are all formed by using the mounting frame 160, and the mounting frame 160 is an insulator. The mounting frame 160 may be integrally injected by using an injection process, is simple to manufacture, and is simpler to form than the positioning rib 163, the surrounding rib 165, and the positioning block 164 which are all formed by using the connection base 110 made of a metal material, since the positioning rib 163, the surrounding rib 165, and the positioning block 164 need to be manufactured through CNC by using the connection base 110.

[0080] In an aspect, referring to FIG. 6 and FIG. 7, the connection base 110 includes a second sleeve 111, a base 112, and a third sleeve 113. The second sleeve 111 and the third sleeve 113 are disposed coaxially. The inner diameter and the outer diameter of the second sleeve 111 are both greater than the inner diameter and the outer diameter of the third sleeve 113. The second sleeve 111 and the third sleeve 113 are formed on opposite sides of the bottom plate 112 respectively. The third sleeve 113 is sleeved outside the first sleeve 161. The support plate 162 is supported on the bottom plate 112. The second sleeve 111 is sleeved outside the atomization tube 120. Specifically, the second sleeve 111 is connected to the liquid storage tube 130 on the outer side of the atomization tube 120.

[0081] In an aspect, referring to FIG. 3 and FIG. 5, the atomization tube 120 and the liquid storage tube 130 are both in sealed connection with the suction nozzle 3000 through a seal sleeve 4000.

[0082] The foregoing descriptions are merely optional aspects of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various changes and variations. Any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present disclosure should be included within the scope of the claims of the present disclosure.

Claims

1. An atomization assembly comprising: a housing assembly being formed with an atomization cavity and an air inlet channel, the air inlet channel including a connection end in communication with the atomization cavity; a heating element including an atomization surface in communication with the atomization cavity, the heating element being disposed in the housing assembly horizontally, and the air inlet channel and the heating element being spaced apart perpendicularly; anda liquid storage space is formed between the air inlet channel and the heating element, wherein a bottom surface of the liquid storage space is lower than the connection end and the atomization surface.

2. The atomization assembly of claim 1, wherein the connection end of the air inlet channel is higher than a bottom surface of the atomization cavity;the bottom surface of the liquid storage space is flush with the bottom surface of the atomization cavity, or the bottom surface of the liquid storage space is lower than the bottom surface of the atomization cavity.

3. The atomization assembly of claim 2, wherein the connection end of the air inlet channel is higher than a lower edge of the atomization surface.

4. The atomization assembly of claim 2, further comprising:a surrounding rib surrounding an area of the air inlet channel located in the atomization cavity, wherein the surrounding rib extends from the bottom surface of the atomization cavity, and the surrounding rib and the heating element are spaced apart perpendicularly.

5. The atomization assembly of claim 1, wherein the connection end of the air inlet channel is flush with a bottom surface of the atomization cavity, and the bottom surface of the liquid storage space is lower than the bottom surface of the atomization cavity.

6. The atomization assembly of claim 1, the housing assembly further comprising: a liquid storage cavity, a vent channel, and a collection groove; wherein the heating element is in communication with the liquid storage cavity and the atomization cavity, an air inlet end of the vent channel is in communication with the collection groove, and an air outlet end of the vent channel is in communication with the liquid storage cavity.

7. The atomization assembly of claim 6, wherein the collection groove is formed in the atomization cavity, and the air inlet end of the vent channel extends to the bottom of the collection groove.

8. The atomization assembly of claim 6, wherein the connection end of the air inlet channel is higher than a bottom surface of the atomization cavity; the bottom surface of the liquid storage space is flush with the bottom surface of the atomization cavity; andthe collection groove is formed by indent of the bottom surface of the atomization cavity; and atomization liquid in the liquid storage space is capable of flowing into the collection groove.

9. The atomization assembly of claim 6, the housing assembly further comprising: an air channel wall forming the vent channel, and the air channel wall is at least partially located in the atomization cavity;the air channel wall is disposed transversely toward the atomization surface of the heating element, or the air channel wall is disposed transversely obliquely toward the atomization surface of the heating element.

10. The atomization assembly of claim 1, wherein the connection end of the air inlet channel is disposed offset from a central axis of the housing assembly.

11. The atomization assembly of claim 1, the air inlet channel further comprising: an air inlet section, a transition section, and an air outlet section; whereinthe air inlet section, the transition section, and the air outlet section are in communication with each other sequentially, the air inlet section is configured to be in communication with the outside, and a central axis of the air inlet section coincides with the central axis of the housing assembly; the air outlet section is in communication with the atomization cavity, and the central axis of the air outlet section is disposed offset from the central axis of the housing assembly; andthe transition section is connected between the air inlet section and the air outlet section.

12. The atomization assembly of claim 11, the housing assembly further comprising: an atomization tube, a mounting frame, a connection base, and an electrode assembly; whereinthe mounting frame is sleeved outside the electrode assembly, the connection base is sleeved outside the mounting frame, the air inlet section is formed in a center of the electrode assembly, the air outlet section is formed on the mounting frame, and the transition section is jointly surrounded by the electrode assembly, the mounting frame, and the connection base; and the atomization tube and the mounting frame jointly surround the atomization cavity.

13. The atomization assembly of claim 12, wherein a end of the electrode assembly facing the battery assembly is open, the end of the electrode assembly configured to be electrically connected to the heating element is closed, a connection hole is formed in the side wall of the electrode assembly, a through groove is formed in the side wall of the mounting frame, and the through groove is in communication with the connection hole and the air outlet section separately.

14. The atomization assembly of claim 13, the mounting frame further comprising: a first sleeve, a support plate, and a positioning rib; whereinthe first sleeve and the positioning rib are formed on opposite sides of the support plate respectively, and the first sleeve is sleeved outside the electrode assembly, the connection base is sleeved outside the first sleeve, and the through groove is formed in the first sleeve.

15. An aerosol generating device comprising: a battery assembly; a suction nozzle; an atomization assembly comprisinga housing assembly being formed with an atomization cavity and an air inlet channel, the air inlet channel including a connection end in communication with the atomization cavity;a heating element including an atomization surface in communication with the atomization cavity, the heating element being disposed in the housing assembly horizontally, and the air inlet channel and the heating element being spaced apart perpendicularly; anda liquid storage space is formed between the air inlet channel and the heating element, wherein a bottom surface of the liquid storage space is lower than the connection end and the atomization surface; andwherein the suction nozzle is disposed in communication with the atomization assembly, and the battery assembly is electrically connected to the atomization assembly.

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