Aerosol-generating device

Abstract

An aerosol-generating device (100). The aerosol-generating device (100) comprises a support (10), an outer tube (20), a first bonding adhesive (30), an inner tube (40), a first electrode (61) and a second electrode (62), wherein the support (10) is provided with a mounting slot (101); one end of the outer tube (20) is inserted into the mounting slot (101) and faces the bottom surface of the mounting slot (101); the first bonding adhesive (30) is arranged in the mounting slot (101), and bonds the slot wall of the mounting slot (101) to the outer tube (20); the inner tube (40) is sleeved in the outer tube (20); the first electrode (61) extends into the inner tube (40) and is partially exposed outside the inner tube (40); the second electrode (62) is arranged in the outer tube (20) and covers the end face of the inner tube (40) extending into the outer tube (20); and the first electrode (61) and the second electrode (62) are opposite and spaced apart from each other in the inner tube (40).

Description

Aerosol generation device

[0001] Priority information

[0002] This application claims priority and benefits to patent application No. 202520304909.X, filed with the China National Intellectual Property Administration on February 25, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of heated non-combustible technology, and more specifically, to an aerosol generating device. Background Technology

[0004] Aerosol generating devices are small electronic devices that generate aerosols by heating an aerosol generating matrix in a non-combustible manner. To improve insulation and heat resistance, aerosol generating devices typically include a tube made of quartz or ceramic. However, quartz or ceramic tubes have low bending strength and are prone to breakage, especially in the event of a drop or external impact, which can easily lead to device failure. Summary of the Invention

[0005] This application provides an aerosol generating apparatus, which is used to at least solve the problem of easy cracking of the outer tube.

[0006] The aerosol generating device according to this application includes a support, an outer tube, a first adhesive, an inner tube, a first electrode, and a second electrode. The support has a mounting groove, one end of the outer tube is inserted into the mounting groove and faces the bottom surface of the mounting groove; the first adhesive is disposed in the mounting groove and adheres to the groove wall and the outer tube; the inner tube is sleeved inside the outer tube; the first electrode extends into the inner tube and is partially exposed outside the inner tube; the second electrode is disposed inside the outer tube and covers the end face of the inner tube extending into the outer tube; the first electrode and the second electrode are opposite to each other and spaced apart in the inner tube.

[0007] In the aerosol generating apparatus of this application, the first electrode and the second electrode serve as heat sources, capable of generating plasma by discharging in the inner tube when energized. The first adhesive bondes the support and the outer tube, thereby enhancing the buffer between the outer tube and the support, reducing the risk of outer tube breakage, and improving the drop resistance of the aerosol generating apparatus. Furthermore, by bonding the groove wall of the mounting groove and the outer tube with the first adhesive, the sag of the outer tube can be increased, maintaining the outer tube in a centered position as much as possible without eccentricity.

[0008] In some embodiments, the bracket is provided with a receiving groove, the orientation of which is opposite to that of the mounting groove along the axial direction of the outer tube. A through hole is formed on the bottom surface of the mounting groove, the through hole connecting the receiving groove and the mounting groove. The inner tube extends from the receiving groove through the through hole into the outer tube.

[0009] Thus, by forming a receiving groove opposite to the mounting groove through the bracket, and forming a through hole connecting the receiving groove and the mounting groove, the inner tube extends from the receiving groove through the through hole into the outer tube, thereby enabling the bracket to provide structural support for the inner tube and the outer tube, and to enhance the alignment of the inner tube and the outer tube and reduce the eccentricity.

[0010] In some embodiments, the aerosol generating apparatus includes an insulating element that encloses an inner tube located in a receiving groove and at least a portion of a first electrode exposed outside the inner tube.

[0011] In this way, by wrapping the inner tube and at least part of the first electrode located in the receiving groove with an insulating component, the inner tube and one end of the first electrode are fixed in a wrapped manner, so that the inner tube and the first electrode can remain relatively fixed, forming a modular structure, and enhancing the insulation protection of the first electrode, reducing the risk of high voltage breakdown. In addition, the insulating component can also provide cushioning in the event of a drop or impact, improving the reliability of drop resistance and external force resistance.

[0012] In some implementations, the insulating element is interference-fitted with the inner tube.

[0013] In this way, by interfering with the inner tube, the insulating component is compressed, thereby improving the connection strength between the insulating component and the inner tube, which helps the insulating component and the inner tube to remain as an integral module.

[0014] In some embodiments, the aerosol generating device includes a conductive element disposed outside the inner tube, the conductive element being connected to the second electrode and extending to the insulating element, the insulating element covering a portion of the conductive element, so that the conductive element, the second electrode, the inner tube, and the first electrode are connected as a single unit.

[0015] In this way, by covering the conductive parts with insulating components, the insulation strength between the conductive parts and the first electrode is improved, reducing the risk of high-voltage breakdown. Simultaneously, by integrating the conductive parts, the second electrode, the inner tube, and the first electrode into a single unit, and by bonding the outer tube to the support, a modular structure is achieved, improving assembly and production efficiency.

[0016] In some embodiments, the aerosol generating device includes a base and a second adhesive. The base has a slot that is opposite to and communicates with the through hole. The inner tube is partially inserted into the slot, and the second adhesive bonds the slot wall and the inner tube.

[0017] In this way, the inner tube passes through the through hole and is inserted into the slot. The second adhesive bonds the slot wall and the inner tube, thereby improving the alignment between the inner tube and the through hole, reducing eccentricity, and the second adhesive connects the inner tube and the base as one unit, improving the degree of structural integration and enhancing the reliability of drop resistance and impact resistance.

[0018] In some embodiments, the aerosol generating device includes a third adhesive, with the base partially located in the receiving groove, the third adhesive bonding the groove wall and the base.

[0019] In this way, the groove wall and the base of the receiving groove are bonded by the third adhesive, so that the base and the support can be relatively fixed, improving the structural strength and integration, and to a certain extent avoiding the relative displacement of components such as inner tube and outer tube under impact or drop, thereby reducing the risk of breakage of inner tube and outer tube.

[0020] In some embodiments, the first electrode is fixedly connected to the base outside the inner tube.

[0021] In this way, by fixing the first electrode to the base, the first electrode, the inner tube and the base are relatively fixed, which improves the structural strength and integration, and thus increases the reliability.

[0022] In some embodiments, the aerosol generating device includes a conductive element disposed outside the inner tube, the conductive element being connected to a second electrode and extending into a slot to be bonded to a second adhesive, so that the conductive element, the second electrode, the inner tube, the first electrode, and the base are connected as a single unit.

[0023] In this way, by connecting the conductive component to the second electrode and extending it into the slot to be bonded with the second adhesive, the insulation strength between the conductive component and the first electrode is improved, reducing the risk of high-voltage breakdown. Simultaneously, by integrating the conductive component, second electrode, inner tube, first electrode, and base into a single unit, and bonding the outer tube to the support, a modular structure is achieved, improving assembly and production efficiency.

[0024] In some embodiments, the length L of the area where the first adhesive is bonded to the outer tube along the axial direction of the outer tube satisfies: L≥0.5mm; and / or, the thickness D of the first adhesive along the radial direction of the outer tube satisfies: 0.05mm≤D≤2.0mm.

[0025] Thus, by setting the length L and / or thickness D of the first adhesive within a reasonable range, the bonding stability between the outer tube and the support is ensured, and the buffering effect of the first adhesive is enhanced when the outer tube is subjected to impact, thereby improving reliability.

[0026] In some embodiments, the aerosol generating device includes a buffer element that encloses the end face of the outer tube located in the mounting groove, and the buffer element abuts against the groove wall and / or the bottom surface of the mounting groove.

[0027] In this way, by wrapping the end of the outer tube in the mounting groove with a buffer, the end face of the outer tube is isolated from the bottom surface of the mounting groove, providing cushioning protection in the event of a drop or impact, and to a certain extent avoiding damage to the end face of the outer tube in the mounting groove.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0030] Figure 1 is a schematic diagram of the aerosol generating apparatus according to an embodiment of this application;

[0031] Figure 2 is a schematic cross-sectional view of the aerosol generating device in Figure 1 along the AA direction.

[0032] Figure 3 is a schematic diagram of the structure of the first module of the aerosol generating device according to an embodiment of this application;

[0033] Figure 4 is a cross-sectional structural diagram of the first module in Figure 3;

[0034] Figure 5 is a schematic diagram of the structure of the second module of the aerosol generating device according to an embodiment of this application.

[0035] Figure 6 is a cross-sectional structural diagram of the second module in Figure 5;

[0036] Figure 7 is a schematic diagram of the structure of an aerosol generating apparatus according to another embodiment of this application;

[0037] Figure 8 is a schematic cross-sectional view of the aerosol generating device in Figure 7 along the BB direction.

[0038] Figure 9 is a schematic diagram of the structure of the first module of the aerosol generating apparatus according to another embodiment of this application;

[0039] Figure 10 is a cross-sectional view of the second module in Figure 9;

[0040] Figure 11 is a schematic diagram of the structure of the second module of an aerosol generating apparatus according to another embodiment of this application;

[0041] Figure 12 is a cross-sectional structural diagram of the second module in Figure 11.

[0042] Explanation of key component symbols:

[0043] 100-Aerosol generating device; 100A-First module; 100B-Second module; 10-Bracket; 101-Mounting groove; 102-Accommodation groove; 1021-Hollowed part; 103-Through hole; 14-Limiting part; 20-Outer tube; 21-Closed end; 22-Open end; 23-Buffer; 30-First adhesive; 40-Inner tube; 51-Insulating part; 511-Protrusion; 52-Second adhesive; 61-First electrode; 611-Rod-shaped part; 612-Disc-shaped part; 613-Lead wire; 62-Second electrode; 621-Conductive part; 6213-Fixing part; 6214-Electrifying part; 70-Base; 701-Slot; 80-Third adhesive; 90-Housing. Embodiments of the present invention

[0044] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0045] In the description of this application, it should be understood that the terms "center," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only, and...

[0046] This should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0050] Please refer to Figure 1. The aerosol generating device 100 is a structure capable of generating aerosols by applying heat to an aerosol generating matrix through resistance heating, electromagnetic heating, microwave heating, laser irradiation, infrared light irradiation, ultrasound, or mechanical vibration. The aerosol generating matrix is ​​a plant flower, stem, or leaf product that has been treated and heated to produce aerosols. The aerosol generating matrix can be in a fully solid, semi-solid, or liquid state. When the aerosol generating matrix is ​​fully solid, it can be prepared using processes such as rolling, slurry preparation, die casting, or extrusion. The aerosol generating matrix can be a cylindrical structure, or a sheet, strip, or block structure.

[0051] Aerosol generating matrix is ​​atomized by heating to form aerosols. Aerosols can be visible or invisible and may include vapors (e.g., fine particulate matter in a gaseous state, which are typically liquid or solid at room temperature) as well as liquid droplets of gas and condensed vapor. Users can inhale aerosols into their mouth, nasal cavity, or lungs through their mouth or nose. Aerosols inhaled into the user's respiratory system can be used for various purposes such as food, medicine, health care, and recreation.

[0052] Please refer to Figures 2-4. The aerosol generating device 100 of this application includes a support 10, an outer tube 20, a first adhesive 30, an inner tube, a first electrode, and a second electrode. The support 10 is provided with a mounting groove 101. One end of the outer tube 20 is inserted into the mounting groove 101 and faces the bottom surface of the mounting groove 101. The first adhesive 30 is disposed in the mounting groove 101 and adheres to the groove wall of the mounting groove 101 and the outer tube 20. The inner tube 40 is sleeved inside the outer tube 20. The first electrode 61 extends into the inner tube 40 and is partially exposed outside the inner tube 40. The second electrode 62 is disposed inside the outer tube 20 and covers the end face of the inner tube 40 that extends into the outer tube 20. The first electrode 61 and the second electrode 62 are opposite to each other and spaced apart in the inner tube 40.

[0053] In the aerosol generating apparatus 100 of this application embodiment, the bracket 10 and the outer tube 20 are bonded together by the first adhesive 30, thereby enhancing the buffer between the outer tube 20 and the bracket 10, reducing the risk of breakage of the outer tube 20, and improving the drop resistance of the aerosol generating apparatus 100. Furthermore, by bonding the groove wall of the mounting groove 101 and the outer tube 20 together by the first adhesive 30, the sag of the outer tube 20 can be increased, keeping the outer tube 20 as centrally located as possible without eccentricity.

[0054] It should be noted that the first electrode 61 and the second electrode 62 in the embodiments of this application serve as heat sources for the aerosol generating device 100. When energized, they can discharge in the inner tube to generate plasma and generate a large amount of heat during the discharge process.

[0055] Specifically, the outer tube 20 is a hollow tube body. One of its two axial ends is a closed end 21, and the other end is an open end 22, which is located in the mounting groove 101. During the heating process, the outer tube 20 needs to be inserted into the aerosol-generating matrix. To facilitate the insertion and removal of the outer tube 20, the closed end 21 can be set in a conical shape.

[0056] With the direction perpendicular to the axial direction of the outer tube 20 as the transverse direction, the outer contour shape of the cross-section of the outer tube 20 can be various, such as triangle, quadrilateral, pentagon, other polygons, circle, ellipse, star, or other irregular shapes, and this application does not impose any limitations on this. To improve the structural stability of the outer tube 20 and facilitate its fabrication, the inner and outer contours of the cross-section of the outer tube 20 can be the same shape. For example, the cross-sectional shape of the outer tube 20 is annular. In other embodiments, the inner contour shape of the cross-section of the outer tube 20 can also be various shapes that are different from the outer contour shape.

[0057] The outer tube 20 can be made of materials with high insulation and heat resistance, such as quartz, ceramic, glass, etc.

[0058] The bracket 10 can be a box-shaped or tripod-shaped structure. The mounting groove 101 can be an open groove, with the opening of the mounting groove 101 facing the closed end 21 of the outer tube 20. The open end 22 of the outer tube 20 is accommodated in the mounting groove 101. The end face of the open end 22 can be in direct contact with the bottom surface of the mounting groove 101 or spaced apart from the bottom surface of the mounting groove 101. The bottom surface of the mounting groove 101 can be a flat surface or a curved surface.

[0059] With the axial direction of the outer tube 20 as the vertical direction, the outer tube 20 can be vertically inserted into the mounting groove 101. The outer tube 20 can be inserted at the center of the mounting groove 101 or the bracket 10 in the transverse direction, with the geometric center of the cross-section of the outer tube 20 collinear with the geometric center of the cross-section of the mounting groove 101 (or the bracket 10) in the vertical direction. For example, the mounting groove 101 is a circular groove, and the cross-section of the outer tube 20 is concentric with that of the mounting groove 101. This arrangement ensures a more uniform transverse stress distribution under external impact, facilitating stress dispersion and reducing the risk of breakage.

[0060] The first adhesive 30 can be formed by pouring a fluid adhesive between the outer tube 20 and the wall of the mounting groove 101 and allowing it to cure. The adhesive used for the first adhesive 30 can be epoxy resin glue. During the pouring process, the adhesive can fully cover the wall of the mounting groove 101 and the outer wall of the outer tube 20, and fully fill the gap between the wall of the mounting groove 101 and the outer tube 20, thereby ensuring stable bonding after curing. In the event of a drop or external impact, the outer tube 20 and the bracket 10 are not prone to relative displacement, the outer tube 20 is stably supported, and the drop resistance reliability is high.

[0061] Due to the surface tension of the liquid, the end face of the first adhesive 30 located at the opening of the mounting groove 101 can form a concave surface that is recessed toward the bottom surface of the mounting groove 101 after the adhesive has cured.

[0062] In some embodiments, the end face of the open end 22 may be in direct contact with the bottom surface of the mounting groove 101, and the first adhesive 30 may cover the groove wall and bottom surface of the mounting groove 101, as well as the outer wall surface of the outer tube 20 extending into the mounting groove 101, and bond the groove wall and bottom surface of the mounting groove 101 with the outer wall surface of the outer tube 20.

[0063] In other embodiments, the end face of the open end 22 is spaced apart from the bottom surface of the mounting groove 101, and the first adhesive 30 covers the groove wall and bottom surface of the mounting groove 101, the outer wall surface of the outer tube 20 extending into the mounting groove 101, and the end face of the open end 22. The first adhesive 30 fills the space between the groove wall and bottom surface of the mounting groove 101 and the outer tube 20 and bonds the bracket 10 to the outer tube 20.

[0064] In other embodiments, the end face of the open end 22 is separated from the bottom surface of the mounting groove 101 by a buffer 23, and the first adhesive 30 covers part of the groove wall of the mounting groove 101 and the outer wall surface of the outer tube 20 extending into the mounting groove 101. The first adhesive 30 adheres to the groove wall of the mounting groove 101 and the outer wall surface of the outer tube 20.

[0065] Optionally, the first electrode 61 is a needle-shaped or relatively slender rod-shaped structure. The first electrode 61, the inner tube 40, and the outer tube 20 can be nested sequentially and can be arranged approximately coaxially. The end of the first electrode 61 corresponding to the open end 22 is exposed outside the outer tube 20 and located in the receiving groove 102, and the insulating member 51 is located in the receiving groove 102 and wraps around the end of the first electrode 61.

[0066] The second electrode 62 can be a disc-shaped, sheet-shaped, or cone-shaped structure. The second electrode 62 covers the end face of the inner tube 40 that extends into the outer tube 20, and the second electrode 62 can be close to or located inside the closed end 21. The inner tube 40 is a hollow structure. The first electrode 61 and the second electrode 62 are opposite each other along the axial direction of the inner tube 40, and plasma is generated in the opposite area of ​​the inner tube 40 when energized, thereby heating the aerosol to generate a matrix.

[0067] Please refer to Figures 2, 4 and 10. In some embodiments, the bracket 10 is provided with a receiving groove 102. The orientation of the receiving groove 102 is opposite to that of the mounting groove 101 along the axial direction of the outer tube 20. A through hole 103 is formed on the bottom surface of the mounting groove 101. The through hole 103 connects the receiving groove 102 and the mounting groove 101. The inner tube 40 extends from the receiving groove 102 through the through hole 103 into the outer tube 20.

[0068] Thus, the bracket 10 forms a receiving groove 102 facing away from the mounting groove 101, and forms a through hole 103 connecting the receiving groove 102 and the mounting groove 101. The inner tube 40 extends from the receiving groove 102 through the through hole 103 into the outer tube 20, thereby enabling the bracket 10 to provide structural support for the inner tube 40 and the outer tube 20, and enhancing the alignment of the inner tube 40 and the outer tube 20, reducing eccentricity.

[0069] Specifically, the receiving groove 102 is an open groove, and the opening of the receiving groove 102 is opposite to the opening of the mounting groove 101. The bottom surfaces of the receiving groove 102 and the mounting groove 101 can be located on opposite sides of the same layer structure, and the through hole 103 penetrates the bottom surfaces of the mounting groove 101 and the receiving groove 102 along the axial direction of the inner tube 40. The inner tube 40 can be coaxial with the outer tube 20, and the inner tube 40 extends into the outer tube 20 through the through hole 103 and the opening of the open end 22. Both ends of the inner tube 40 have openings in the axial direction, and the openings at both ends of the inner tube 40 are connected. One end of the inner tube 40 is close to the closed end 21, and the other end of the inner tube 40 is located in the receiving groove 102.

[0070] The end of the inner tube 40 located in the receiving groove 102 can be fixedly connected to the bracket 10 by a soft rubber sleeve or adhesive.

[0071] Please refer to Figures 2, 5 and 6. In some embodiments, the aerosol generating apparatus 100 includes an insulating member 51 that encloses an inner tube 40 located in a receiving groove 102 and a portion of the surface of a first electrode 61 exposed outside the inner tube 40.

[0072] Thus, by wrapping the inner tube 40 and at least part of the first electrode 61 located in the receiving groove 102 with the insulating component 51, the inner tube 40 and one end of the first electrode 61 are fixed in a wrapped manner, so that the inner tube 40 and the first electrode 61 can remain relatively fixed, forming a modular structure, and enhancing the insulation protection of the first electrode 61, reducing the risk of high voltage breakdown. In addition, the insulating component 51 can also provide cushioning in the event of a drop or impact, improving the reliability of drop resistance and external force resistance.

[0073] Specifically, the insulating member 51 can be a flexible sleeve made of insulating material, such as a soft rubber sleeve. The insulating member 51 can be accommodated in the receiving groove 102, or it can cooperate with the wall of the receiving groove 102 to further fix the inner tube 40 and the support 10. For example, a protrusion 511 is formed on the outer peripheral surface of the insulating member 51, and a hollow portion 1021 is formed on the wall of the receiving groove 102. The protrusion 511 extends into the hollow portion 1021, so that the insulating member 51 is engaged with the support 10 and plays a certain role in limiting its position.

[0074] Please refer to Figures 2 and 6. In some embodiments, the insulating element 51 is interference-fitted with the inner tube 40.

[0075] Thus, by interfering with the inner tube 40 through the insulating component 51, a compression is formed, thereby improving the connection strength between the insulating component 51 and the inner tube 40, which is conducive to keeping the insulating component 51 and the inner tube 40 as an integral module.

[0076] Specifically, the insulating component 51 is a soft rubber sleeve fitted onto the end of the inner tube 40 located in the receiving groove 102, and the interference range of the insulating component 51 and the outer wall surface of the inner tube 40 is 0-0.2mm.

[0077] Optionally, the first electrode 61 includes a rod-shaped portion 611 that passes through the inner tube 40 and a disc-shaped portion 612 disposed outside the inner tube 40. The disc-shaped portion 612 can be sleeved on the rod-shaped portion 611 located outside the inner tube 40 to provide a central limiting function for the rod-shaped portion 611 and improve structural stability.

[0078] Optionally, the insulating member 51 covers the disc-shaped portion 612 and part of the rod-shaped portion 611 to enhance the integration of the first electrode 61 with the inner tube 40 and improve the insulation strength. Furthermore, the insulating member 51 is interference-fitted with the disc-shaped portion 612 and the rod-shaped portion 611.

[0079] Optionally, the interference fit between the insulating member 51 and the first electrode 61 is within the range of 0.05mm-0.2mm.

[0080] Optionally, the end of the first electrode 61 away from the second electrode 62 can be connected to a lead wire 613, which passes through the slot of the receiving groove 102 and extends to the power supply circuit (not shown) to power the first electrode 61.

[0081] Please refer to Figures 2, 5 and 6. In some embodiments, the aerosol generating device 100 includes a conductive element 621 disposed outside the inner tube 40. The conductive element 621 is connected to the second electrode 62 and extends to the insulating element 51. The insulating element 51 covers part of the conductive element 621 so that the conductive element 621, the second electrode 62, the inner tube 40 and the first electrode 61 are connected as a whole.

[0082] Thus, by covering the conductive element 621 with the insulating element 51, the insulation strength between the conductive element 621 and the first electrode 61 is improved, reducing the risk of high-voltage breakdown. At the same time, by connecting the conductive element 621, the second electrode 62, the inner tube 40, and the first electrode 61 into one unit, and by bonding the outer tube 20 to the bracket 10 into one unit, the structure is modularized, improving assembly and production efficiency.

[0083] Specifically, the second electrode 62 is energized via a conductive element 621. The conductive element 621 and the second electrode 62 can be separate structures fixedly connected, or they can be an integrally formed component. The conductive element 621 can be a conductive wire or a conductive film layer attached to the outer surface of the inner tube 40. The conductive element 621 is connected to the second electrode 62 near the closed end 21 and extends axially along the inner tube 40 to the open end 22, with the conductive element 621 partially extending beyond the open end 22. The portion of the conductive element 621 extending beyond the open end 22 includes a fixing portion 6213 and an energizing portion 6214. The fixing portion 6213 can surround the inner tube 40 and partially insert between the insulating element 51 and the wall of the inner tube 40, forming a compression connection with the insulating element 51. The energizing portion 6214 forms a bend outside the open end 22, extending away from the first electrode 61 and connecting to the power supply circuit (not shown).

[0084] In some embodiments, the aerosol generating device 100 can be modularly assembled through the following process: First, the bracket 10 and the outer tube 20 are connected as a whole by the first adhesive 30 to form the first module 100A as shown in FIG3; then, the integral part formed by connecting the first electrode 61, the second electrode 62 and the conductive element 621 is assembled together with the base 70 of the inner tube 40, and the ends of the inner tube 40, the first electrode 61 and the conductive element 621 located in the receiving groove 102 are wrapped together by the insulating element 51 to form the second module 100B as shown in FIG5; finally, the inner tube 40 and the second electrode 62 are inserted into the outer tube 20, and the insulating element 51 is accommodated in the receiving groove 102 and can be limited and cooperated with the bracket 10, so that the first module 100A and the second module 100B are fixedly connected.

[0085] Please refer to Figures 1 and 2. In some embodiments, the aerosol generating device 100 also includes a housing 90, which can be fixedly connected to an insulating member 51. In the event of a drop or external impact, the insulating member 51 can isolate the inner tube 40 from the housing 90, thereby reducing or avoiding relative vibration between the first electrode 61, the second electrode 62, the conductive member 621, and the inner tube 40 and outer tube 20 and the housing 90 when subjected to impact, thus reducing the risk of breakage of the inner tube 40 and the outer tube 20 and heating failure.

[0086] Optionally, as shown in Figure 1, the bracket 10 is provided with a limiting part 14, which can be engaged with the housing 90.

[0087] Please refer to Figures 7, 8 and 12. In some embodiments, the aerosol generating device 100 includes a base 70 and a second adhesive 52. The base 70 is provided with a slot 701 that is opposite to and communicates with the through hole 103. The inner tube 40 is partially inserted into the slot 701. The second adhesive 52 adheres to the slot wall of the slot 701 and the inner tube 40.

[0088] Thus, the inner tube 40 passes through the through hole 103 and is inserted into the slot 701. The second adhesive 52 bonds the slot wall of the slot 701 and the inner tube 40, thereby improving the alignment between the inner tube 40 and the through hole 103, reducing eccentricity, and the second adhesive 52 connects the inner tube 40 and the base 70 into one unit, improving the degree of structural integration and enhancing the reliability of drop resistance and impact resistance.

[0089] Specifically, the second adhesive 52 can be a fluid adhesive poured between the slot 701 and the inner tube 40 and then cured. The adhesive can be epoxy resin glue. The base 70 can be at least partially accommodated in the receiving groove 102, and the end face of the base 70 can abut against the bottom surface of the receiving groove 102. With the direction from the open end 22 of the outer tube 20 to the closed end 21 as the bottom-up direction, the inner tube 40 can pass through the slot 701 (and simultaneously through the receiving groove 102), the through hole 103, and the mounting groove 101 from bottom to top and partially extend into the outer tube 20.

[0090] Referring to Figure 8, in some embodiments, the aerosol generating device 100 includes a third adhesive 80, and the base 70 is partially located in the receiving groove 102. The third adhesive 80 adheres to the groove wall of the receiving groove 102 and the base 70.

[0091] Thus, by bonding the groove wall of the receiving groove 102 and the base 70 with the third adhesive 80, the base 70 and the bracket 10 can be relatively fixed, improving the structural strength and integration, and to a certain extent avoiding relative displacement of components such as the inner tube 40 and the outer tube 20 under impact or drop, thereby reducing the risk of breakage of the inner tube 40 and the outer tube 20.

[0092] Specifically, the third adhesive 80 may be made of an adhesive with the same or different composition as the first adhesive 30 and the second adhesive 52. For example, the third adhesive 80 may also be formed by filling the cavity wall of the receiving groove 102 and the base 70 with epoxy resin adhesive and then curing it.

[0093] In some embodiments, the aerosol generating device 100 can be modularly assembled through the following process: First, the bracket 10 and the outer tube 20 are connected together by the first adhesive 30 to form a first module 100A as shown in FIG. 9; then, the integral part formed by connecting the first electrode 61, the second electrode 62 and the conductive element 621, the inner tube 40 and the base 70 are assembled together, and the inner tube 40, the first electrode 61, the conductive element 621 and the base 70 are bonded together by the second adhesive 52 to form a second module 100B as shown in FIG. 11; finally, the inner tube 40 and the second electrode 62 are inserted into the outer tube 20, the base 70 is partially accommodated in the receiving groove 102, the first module 100A and the second module 100B are nested together, and the base 70 and the groove wall of the receiving groove 102 are bonded together by the third adhesive 80, so that the first module 100A and the second module 100B are fixedly connected.

[0094] In this embodiment, the components are highly modular, the assembly is easy and efficient, the connection is stable, and the structure is highly reliable.

[0095] Please refer to Figures 8, 11 and 12. In some embodiments, the first electrode 61 is fixedly connected to the base 70 outside the inner tube 40.

[0096] Thus, by fixing the first electrode 61 to the base 70, the first electrode 61, the inner tube 40 and the base 70 are relatively fixed, improving the structural strength and integration, and thus increasing reliability.

[0097] As explained above, when the first motor and the second electrode 62 are energized, they discharge in the inner tube 40 and generate plasma. When the first electrode 61 and the second electrode 62 are connected to high voltage, high-strength insulation protection is required between them. The first electrode 61 is fixedly connected to the base 70, which can be made of a high-insulation-strength material. This allows the base 70 and the inner tube 40 to work together to insulate the non-discharge end of the first electrode 61, preventing discharge from occurring on the portion of the first electrode 61 exposed outside the inner tube 40.

[0098] Optionally, the first electrode 61 includes a rod-shaped portion 611 passing through the inner tube 40 and a disc-shaped portion 612 disposed outside the inner tube 40. The disc-shaped portion 612 can be sleeved on the rod-shaped portion 611 located outside the inner tube 40. The slot 701 can be formed in the shape of a funnel. The diameter of the slot 701 is wider at both ends and narrower in the middle along the axial direction of the inner tube 40. The two wider portions of the slot 701 respectively accommodate the second adhesive 52 and the disc-shaped portion 612. The inner tube 40 can be inserted into the narrower portion between the slots 701 and separate the second adhesive 52 from the disc-shaped portion 612, thereby strengthening the insulation between the disc-shaped portion 612 and the conductive element 621.

[0099] Please refer to Figures 8, 11 and 12. In some embodiments, the aerosol generating device 100 includes a conductive element 621 disposed outside the inner tube 40. The conductive element 621 is connected to the second electrode 62 and extends into the slot 701 to be bonded to the second adhesive 52, so that the conductive element 621, the second electrode 62, the inner tube 40, the first electrode 61 and the base 70 are connected as one unit.

[0100] Thus, by connecting the conductive element 621 to the second electrode 62 and extending it into the slot 701 to bond with the second adhesive 52, the insulation strength between the conductive element 621 and the first electrode 61 is improved, reducing the risk of high-voltage breakdown. Simultaneously, by connecting the conductive element 621, the second electrode 62, the inner tube 40, the first electrode 61, and the base 70 into a single unit, and by bonding the outer tube 20 to the bracket 10, a modular structure is achieved, improving assembly and production efficiency.

[0101] Specifically, the conductive element 621 can be a conductive wire or a conductive film layer attached to the outer surface of the inner tube 40.

[0102] The conductive element 621 is connected to the second electrode 62 at a section near the closed end 21 and extends axially along the inner tube 40 to the open end 22. The conductive element 621 can partially extend outside the open end 22. The end of the conductive element 621 extending outside the open end 22 and away from the second electrode 62 can surround the inner tube 40 and fit against the outer wall surface of the inner tube 40. The second adhesive 52 bonds the end of the conductive element 621 to the outer wall surface of the inner tube 40, and also bonds the end of the conductive element 621 to the groove wall of the slot 701.

[0103] Please refer to Figures 4 and 10. In some embodiments, the length L of the area where the first adhesive 30 is bonded to the outer tube 20 along the axial direction of the outer tube 20 satisfies: L≥0.5mm; and / or, the thickness D of the first adhesive 30 along the radial direction of the outer tube 20 satisfies: 0.05mm≤D≤2.0mm.

[0104] Thus, by setting the length L and / or thickness D of the first adhesive 30 within a reasonable range, the bonding stability between the outer tube 20 and the bracket 10 is ensured, and the buffering effect of the first adhesive 30 is enhanced when the outer tube 20 is subjected to impact, thereby improving reliability.

[0105] Specifically, the areas where the first adhesive 30 adheres to the outer tube 20 and the wall of the mounting groove 101 generally coincide along the axial direction of the outer tube 20. However, during the curing process, the first adhesive 30 tends to form a depression at the opening of the mounting groove 101, causing the edge of the first adhesive 30 adhering to the outer tube 20 to be not completely flush with the opening of the mounting groove 101. That is, along the axial direction of the outer tube 20, the length of the first adhesive 30 adhering to the outer tube 20 and the length adhering to the wall of the mounting groove 101 are similar but not exactly the same. The length L of the area where the first adhesive 30 adheres to the outer tube 20 along the axial direction of the outer tube 20 is greater than or equal to 0.5 mm, and the length of the area where the outer tube 20 and the wall of the mounting groove 101 adhere to each other along the axial direction of the outer tube 20 is also approximately greater than 0.5 mm.

[0106] Furthermore, the length L along the axial direction of the area where the first adhesive 30 is bonded to the outer tube 20 satisfies: 1.5mm ≤ L ≤ 4.0mm. For example, the length L along the axial direction of the area where the first adhesive 30 is bonded to the outer tube 20 can be 1.5mm, 1.85mm, 2.1mm, 3.3mm, 3.7mm, 4.0mm, etc.

[0107] As is easily understood, the first adhesive 30 can be formed by injecting and curing an adhesive. The thickness of the first adhesive 30 along the radial direction of the outer tube 20 is approximately equal to the distance between the outer wall surface of the outer tube 20 and the wall of the mounting groove 101 along the radial direction of the outer tube 20. The first adhesive 30 can have uneven thickness along different radial directions of the outer tube 20. To improve the stability of the structure and the circumferential uniformity of the temperature field, the outer tube 20 can have the same cross-sectional shape as the mounting groove 101 and be inserted at the center of the mounting groove 101, so that the thickness D of the first adhesive 30 along the radial direction of the outer tube 20 is equal everywhere in the circumference.

[0108] For example, the thickness D of the first adhesive 30 along the radial direction of the outer tube 20 is equal in all circumferential directions, and the thickness D of the first adhesive 30 along the radial direction of the outer tube 20 can be 0.05mm, 0.08mm, 0.14mm, 1.3mm, 1.6mm, 2.0mm, etc.

[0109] Please refer to Figures 2 and 8. In some embodiments, the aerosol generating device 100 includes a buffer 23 that wraps around the end face of the outer tube 20 located in the mounting groove 101 and abuts against the groove wall and / or the bottom surface of the mounting groove 101.

[0110] Thus, by wrapping the end of the outer tube 20 in the mounting groove 101 with the buffer 23, the end face of the outer tube 20 is isolated from the bottom surface of the mounting groove 101, providing cushioning protection in the event of a drop or impact, and to a certain extent avoiding damage to the end face of the outer tube 20 in the mounting groove 101.

[0111] Specifically, the buffer element 23 can be a soft rubber sleeve that wraps around the end face of the open end 22 and abuts against the bottom surface of the mounting device and the groove wall along the axial and radial directions of the outer tube 20, respectively. The buffer element 23 has a certain degree of flexibility or elasticity, and can be compressed and form a buffer in the event of a drop or impact to the aerosol generating device 100.

[0112] In the description of this specification, the references to terms such as "one embodiment," "some implementations," "some embodiments," "exemplary," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0113] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerosol generating device, wherein, include: The bracket has a mounting slot; An outer tube, one end of which is inserted into the mounting groove and faces the bottom surface of the mounting groove; A first adhesive is disposed in the mounting groove and adheres to the groove wall and the outer tube. Inner tube, which is fitted inside the outer tube; A first electrode and a second electrode, wherein the first electrode extends into the inner tube and partially protrudes outside the inner tube, and the second electrode is disposed inside the outer tube and covers the end face of the inner tube that extends into the outer tube, and the first electrode and the second electrode are opposite to and spaced apart in the inner tube.

2. The aerosol generating apparatus according to claim 1, wherein, The bracket is provided with a receiving groove, the orientation of which is opposite to that of the mounting groove along the axial direction of the outer tube. A through hole is formed on the bottom surface of the mounting groove, the through hole connecting the receiving groove and the mounting groove. The inner tube extends from the receiving groove through the through hole into the outer tube.

3. The aerosol generating apparatus according to claim 2, wherein, The aerosol generating apparatus includes an insulating element that encloses the inner tube located in the receiving groove and at least a portion of the first electrode exposed outside the inner tube.

4. The aerosol generating apparatus according to claim 3, wherein, The insulating component is interference-fitted with the inner tube.

5. The aerosol generating apparatus according to claim 3, wherein, The aerosol generating device includes a conductive element disposed outside the inner tube. The conductive element is connected to the second electrode and extends to the insulating element. The insulating element covers a portion of the conductive element so that the conductive element, the second electrode, the inner tube, and the first electrode are connected as a whole.

6. The aerosol generating apparatus according to claim 2, wherein, The aerosol generating device includes a base and a second adhesive. The base has a slot that is opposite to and communicates with the through hole. The inner tube is partially inserted into the slot. The second adhesive bonds the slot wall and the inner tube.

7. The aerosol generating apparatus according to claim 6, wherein, The aerosol generating device includes a third adhesive, the base is partially located in the receiving groove, and the third adhesive adheres to the groove wall of the receiving groove and the base.

8. The aerosol generating apparatus according to claim 7, wherein, The first electrode is fixedly connected to the base outside the inner tube. The aerosol generating device includes a conductive element disposed outside the inner tube. The conductive element is connected to the second electrode and extends into the slot to be bonded to the second adhesive, so that the conductive element, the second electrode, the inner tube, the first electrode and the base are connected as one unit.

9. The aerosol generating apparatus according to any one of claims 1-8, wherein, The length L of the area where the first adhesive is bonded to the outer tube along the axial direction of the outer tube satisfies: L≥0.5mm; and / or, the thickness D of the first adhesive along the radial direction of the outer tube satisfies: 0.05mm≤D≤2.0mm.

10. The aerosol generating apparatus according to any one of claims 1-9, wherein, The aerosol generating device includes a buffer element that wraps around the end face of the outer tube located in the mounting groove, and the buffer element abuts against the groove wall and / or the bottom surface of the mounting groove.

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