Heating assembly and aerosol generating device

Abstract

This application relates to a heating component and an aerosol generating device. The heating component includes a heating module having a accommodating cavity for accommodating an aerosol generating matrix. The heating module is used to heat the aerosol generating matrix located within the accommodating cavity. An airflow channel is formed between the accommodating cavity and the aerosol generating matrix. The airflow channel is configured to allow external gas to flow through the airflow channel into the aerosol generating matrix when it is used. The design of the airflow channel not only helps to maintain the relative cleanliness of the airflow channel and reduce the difficulty of cleaning, but also improves the user experience to a certain extent and enhances the stability and reliability of the product during long-term use.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and in particular to a heating component and an aerosol generating device. Background Technology

[0002] In the rapidly developing field of aerosol release technology in recent years, portable devices with heating-driven functions have been widely used due to their ease of use and high release efficiency. Based on the spatial arrangement between the heating unit and the medium, the heating structures of such devices mainly include three types: central heating, circumferential heating, and bottom heating. Among them, the circumferential heating structure, due to its strong heating coverage and balanced heat conduction path, has been adopted by several mainstream technical solutions and widely deployed in related devices.

[0003] However, in aerosol release devices employing circumferential heating structures, the aerosol condensate generated during pyrolysis or atomization tends to adhere to the inner wall of the airflow channel, making cleaning difficult. Utility Model Content

[0004] This application provides a heating element and an aerosol generating device, which prevents aerosol condensate from adhering to the inside of the air passage, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a heating component is provided, comprising:

[0006] A heating module has a accommodating cavity for accommodating an aerosol generating matrix, the heating module being used to heat the aerosol generating matrix located within the accommodating cavity;

[0007] An airflow channel is formed between the accommodating cavity and the aerosol generating matrix. The airflow channel is configured to allow external gas to flow through the airflow channel and enter the aerosol generating matrix when the aerosol generating matrix is ​​used.

[0008] In some embodiments, an annular airflow channel is formed between the inner peripheral wall of the accommodating cavity and the outer peripheral wall of the aerosol generating matrix located within the accommodating cavity.

[0009] In some embodiments, the distance between the outer wall of the aerosol generating matrix and the inner wall of the accommodating cavity is 0.15mm-0.25mm.

[0010] In some embodiments, the heating module includes a heating element disposed around the aerosol generating matrix, the heating element being used to generate heat, and an airflow channel being formed between the aerosol generating matrix and the heating element.

[0011] In some embodiments, the heating component further includes a heat insulation element, wherein:

[0012] The heat insulation element is arranged around the heating module; and / or,

[0013] The heat insulation component is attached to the outer wall of the heating module.

[0014] In some embodiments, the heating component further includes a support module, on which the heating module is mounted.

[0015] In some embodiments, the material of the support module can withstand a temperature greater than or equal to 250 degrees Celsius in the portion of the area where the radial projection of the support module and the heating module overlaps along the accommodating cavity.

[0016] In some embodiments, the support module includes a mounting bracket and a guide bracket, the heating module is mounted on the mounting bracket, and the guide bracket is mounted on the mounting bracket and disposed near the opening side of the receiving cavity.

[0017] In some embodiments, the mounting bracket has a mounting cavity with an opening at one end, through which the heating module is mounted.

[0018] In some embodiments, the support module further includes a connecting bracket, the guide bracket is mounted on the connecting bracket, and the connecting bracket is mounted on the mounting bracket.

[0019] In some embodiments, the connecting bracket and the mounting bracket are sealed together.

[0020] In some embodiments, a seal is provided between the connecting bracket and the mounting bracket to ensure a sealed connection between them.

[0021] In some embodiments, the support module includes a guiding structure; wherein,

[0022] The guiding structure is configured to abut against the aerosol generating matrix when the aerosol generating matrix is ​​located within the accommodating cavity, thereby fixing the aerosol generating matrix within the accommodating cavity; and / or,

[0023] The guiding structure is configured to align the aerosol generating matrix with the accommodating cavity coaxially when the aerosol generating matrix is ​​located within the accommodating cavity.

[0024] In some embodiments, the guiding structure is disposed on the guiding bracket of the support module; and / or,

[0025] The guiding structure is mounted on the mounting bracket of the support module.

[0026] In some embodiments, the guiding structure includes a protrusion that projects toward the central axis side of the receiving cavity.

[0027] In some embodiments, there are multiple protrusions, which are distributed circumferentially along the accommodating cavity.

[0028] In some embodiments, the protrusions include at least two groups, each group including a plurality of the protrusions, and the at least two groups of the protrusions are spaced apart along the axial direction of the receiving cavity.

[0029] In some embodiments, the heating module has a first opening communicating with the accommodating cavity, the aerosol generating matrix enters the accommodating cavity through the first opening, and the protruding portions are arranged in groups;

[0030] The grouped protrusions include a first protrusion group, which is located on the support module near the first opening; and / or

[0031] The heating module also has a second opening communicating with the accommodating cavity. The first opening and the second opening are arranged opposite to each other. The grouped protrusions also include a second protrusion group, which is located at the second opening.

[0032] According to a second aspect of this application, an aerosol generating device is provided, including the heating component described in the above technical solution, and further including a power supply unit and / or a control module, wherein the power supply unit is used to supply power to the heating module, and the control module is configured to control the operation of the heating module when the aerosol generating matrix is ​​located in the accommodating cavity.

[0033] In the heating component of this application embodiment, an airflow channel is provided between the accommodating cavity and the aerosol generating matrix, allowing external gas to enter the interior of the aerosol generating matrix through this airflow channel during user use. This structural design helps to preferentially discharge atomized aerosols in the direction of use during use, reducing the possibility of aerosols reversing and entering the airflow channel, thereby reducing the risk of aerosol condensate adhering to the inner wall of the accommodating cavity to a certain extent.

[0034] Furthermore, even if some aerosol enters the airflow channel, the heating module, operating at a high temperature, can reheat and atomize the condensed aerosol, allowing it to be carried away by the airflow and discharged. This helps reduce condensate residue within the airflow channel. This structural design not only helps maintain the relative cleanliness of the airflow channel and reduces cleaning difficulty, but also improves the user experience and enhances the product's stability and reliability during long-term use.

[0035] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0038] Figure 1 This is a schematic diagram of the structure of the heating component provided in an exemplary embodiment of this disclosure;

[0039] Figure 2 This is an application scenario diagram of the heating component provided in the exemplary embodiments of this disclosure;

[0040] Figure 3 This is a schematic diagram of airflow in the heating component provided in an exemplary embodiment of this disclosure;

[0041] Figure 4 This is a schematic diagram of the structure of the mounting bracket provided in an exemplary embodiment of this disclosure;

[0042] Figure 5 This is a top view of the mounting bracket provided in an exemplary embodiment of this disclosure;

[0043] Figure 6 This is a top view of the guide bracket provided in an exemplary embodiment of this disclosure;

[0044] Figure 7 This is a schematic diagram of the structure of the aerosol generating device provided in an exemplary embodiment of this disclosure.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Aerosol generating matrix; 10. Power supply unit; 20. Control module; 100. Heating module; 110. Receptacle; 120. Airflow channel; 130. Heating element; 140. First opening; 150. Second opening; 200. Heat insulation element; 300. Support module; 310. Mounting bracket; 311. Mounting cavity; 320. Connecting bracket; 330. Guide bracket; 340. Sealing element; 350. Guide structure; 351. Protrusion; 352. First protrusion group; 353. Second protrusion group. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0048] According to the first aspect of this application, referring to Figures 1 to 7 This disclosure provides a heating component for heating an aerosol generating matrix 1 to induce the aerosol generating matrix 1 to release aerosols for use by a user.

[0049] In some embodiments, the aerosol generating matrix 1 may be a preform with a specific shape and structure. Exemplarily, the aerosol generating matrix 1 is cylindrical and filled with a heatable solid or powdered material that can release aerosols when heated. To improve the uniformity of aerosol release and user experience, the material may also be mixed with a liquid carrier or other functional components to regulate the volatility of substances or improve taste.

[0050] It should be understood that the aerosol generating matrix 1 described herein differs from the traditional open flame ignition type release unit, which can release aerosols by heating the internal substances to achieve pyrolysis or phase change without the need for an open flame.

[0051] In some embodiments, the aerosol generating matrix 1 is designed as a replaceable or detachable structure and is installed on the heating component.

[0052] In some embodiments, refer to Figure 1 , Figure 2 The heating component includes a heating module 100, which has a accommodating cavity 110 for accommodating the aerosol generating matrix 1. The heating module 100 is used to heat the aerosol generating matrix 1 located within the accommodating cavity 110. Exemplarily, the structural dimensions of the accommodating cavity 110 are matched with the shape of the aerosol generating matrix 1, so that the aerosol generating matrix 1 can be inserted into or fitted into the accommodating cavity 110, thereby achieving relatively stable positioning in use.

[0053] It is understood that the heating module 100 is configured to heat the aerosol generating matrix 1 within the accommodating cavity 110 after being powered on. Exemplarily, the heating module 100 may include a resistance wire, an electric heating film, a ceramic heating element, a stainless steel thick-film heating tube, a ceramic thick-film heating tube, or a heating unit composed of an electromagnetic heating coil and an electromagnetic induction material. The above-mentioned heating structure can be selected in one or more forms according to actual needs. Its distribution in the heating module 100 can be circumferential, axially attached, or distributed in the form of multiple heating points. The specific structural layout can be optimized and adjusted in conjunction with the overall product design to achieve effective heating of the aerosol generating matrix 1.

[0054] Specifically, by placing the aerosol generating matrix 1 within the accommodating cavity 110 and transferring heat through the heating module 100, the aerosol generating matrix 1 can be effectively heated, thereby promoting the release of aerosols. This heating method does not involve open flame combustion, which helps reduce the risk of generating harmful byproducts and also improves the controllability and consistency of aerosol release.

[0055] In some embodiments, refer to Figure 1 , Figure 2 An airflow channel 120 is formed between the accommodating cavity 110 and the aerosol generating matrix 1. The airflow channel 120 is configured to allow external gas to flow through the airflow channel 120 and enter the aerosol generating matrix 1 when it is used. Exemplarily, the airflow channel 120 is an annular gap formed between the inner wall of the accommodating cavity 110 and the outer wall of the aerosol generating matrix 1. This structural design helps to guide external gas to flow along the airflow channel 120 and enter the interior of the aerosol generating matrix 1 when the user uses it.

[0056] Specifically, the airflow channel 120 enables the airflow to bypass the periphery of the aerosol generating matrix 1 and enter its interior uniformly, improving the contact efficiency between the gas and the atomizing medium, thereby facilitating the generation and carrying of aerosols. By maintaining a certain gap between the accommodating cavity 110 and the aerosol generating matrix 1, the airflow channel 120 forms a fluid dynamic pathway to a certain extent, which helps maintain a stable airflow organization and avoids the adverse effects of airflow turbulence on the atomization effect.

[0057] It should be noted that "use" here refers to the process by which the user creates negative pressure at the end of the aerosol generating matrix 1 away from the receiving cavity 110, thereby driving gas from the outside into the interior of the heating component. The airflow channel 120, as an important component of this gas flow path, helps guide the airflow smoothly into the aerosol generating matrix 1, improving the aerosol generation efficiency and user experience.

[0058] In some embodiments, refer to Figure 2 , Figure 3 The airflow channel 120 is an equidistant annular airflow channel, meaning that the circumferential width of the airflow channel 120 along the accommodating cavity 110 remains essentially constant. This equidistant annular structure facilitates uniform gas distribution and promotes smooth airflow, allowing external gas to uniformly enter the aerosol generating matrix 1, thereby improving the stability and efficiency of aerosol generation. The equidistant annular airflow channel 120 also helps to mitigate fluctuations in airflow resistance, improving the overall user experience. Simultaneously, this structure maintains a consistent distance between the aerosol generating matrix 1 and the inner wall of the accommodating cavity 110, contributing to a more uniform heating effect and reducing the potential decrease in atomization performance due to uneven heating.

[0059] In some embodiments, the airflow channel 120 includes a groove extending axially along the accommodating cavity 110 and disposed on the inner wall of the accommodating cavity 110. The groove forms a channel for airflow to pass through, which is beneficial for guiding the external gas to flow stably along the axial direction of the accommodating cavity 110, thereby promoting the uniform entry of gas into the aerosol generating matrix 1, improving the aerosol generation efficiency and user experience.

[0060] In some embodiments, refer to Figure 2 , Figure 3 An annular airflow channel 120 is formed between the inner peripheral wall of the accommodating cavity 110 and the outer peripheral wall of the aerosol generating matrix 1 located within the accommodating cavity 110. This annular airflow channel 120 is beneficial for guiding external gas to flow uniformly around the circumference of the accommodating cavity 110, promoting sufficient contact between the gas and the matrix within the aerosol generating matrix 1, thereby facilitating the stable generation and effective release of aerosols.

[0061] In some embodiments, the distance between the outer wall of the aerosol generating matrix 1 and the inner wall of the accommodating cavity 110 is 0.15mm-0.25mm. This distance range balances airflow and heating efficiency to a certain extent, facilitating smooth gas passage through the airflow channel 120 and contributing to more uniform and effective heat transfer. If the distance is too small, it may lead to overheating, affecting the aerosol generation effect; if the distance is too large, it may lead to insufficient heat transfer, reducing heating efficiency and thus affecting atomization performance.

[0062] For example, the distance between the outer wall of the aerosol generating matrix 1 and the inner wall of the accommodating cavity 110 is 0.15mm, 0.156mm, 0.17mm, 0.175mm, 0.19mm, 0.2mm, 0.205mm, 0.22mm, 0.23mm, and 0.25mm, but this embodiment does not limit the distance.

[0063] In some embodiments, refer to Figure 1 , Figure 2The heating module 100 includes a heating element 130, which is arranged around the aerosol generating matrix 1 and is used to generate heat. An airflow channel 120 is formed between the aerosol generating matrix 1 and the heating element 130. The heating element 130 can be in various forms such as resistance wire, electric heating film, and ceramic heating plate, and is arranged around the aerosol generating matrix 1 to form a ring heating structure.

[0064] In some embodiments, the number of heating elements 130 can be one or more. When there are multiple heating elements 130, they can be arranged in a certain pattern. For example, the heating elements 130 can be distributed axially and circumferentially around the aerosol generating matrix 1. This arrangement is beneficial for achieving uniform and stable heating, promoting more uniform heat transfer to all parts of the aerosol generating matrix 1, thereby facilitating the stable generation and release of aerosols.

[0065] In some embodiments, refer to Figure 1 , Figure 2 The heating element also includes a heat insulation component 200, which surrounds the heating module 100. The heat insulation component 200 helps reduce heat loss to the outside and promotes more effective concentration of heat energy in the aerosol generation matrix 1 area within the heating module 100 and the accommodating cavity 110, thereby improving heating efficiency and stability. Furthermore, the heat insulation component 200 can also reduce the temperature of the outer casing surface to a certain extent, improving product safety and user comfort. The material and structure of the heat insulation component 200 can be selected and designed according to specific requirements.

[0066] In some embodiments, the insulation component 200 is made of an insulation material with a thermal conductivity of less than 0.1 W / m·K to achieve a better insulation effect. This insulation material can be an aerogel insulation material, which has excellent insulation performance and lightweight properties; alternatively, an insulation component with a vacuum tube-like structure can be used, which effectively reduces heat conduction and convection through a vacuum environment, thereby further improving the insulation effect.

[0067] In some embodiments, the heat insulation element 200 is attached to the outer wall of the heating module 100. The heat insulation element 200 is typically made of a flexible material that can wrap around the surface of the heating module 100 for a tight fit. Common fixing methods include having an adhesive layer on the back of the heat insulation element 200, or fixing the heat insulation element 200 to the heating module 100 using high-temperature resistant tape. This structure helps reduce heat loss, improves heating efficiency, and facilitates installation and manufacturing processes.

[0068] In some embodiments, refer to Figure 2 , Figure 3The heating element also includes a support module 300, on which the heating module 100 is mounted. The support module 300 provides structural support for the heating element, improving overall stability and reliability. Simultaneously, the support module 300 facilitates user gripping and operation of the heating element, enhancing ease of use and comfort.

[0069] In some embodiments, the material of the portion of the support module 300 corresponding to the area where the radial projections of the support module 300 and the heating module 100 overlap along the accommodating cavity 110 can withstand temperatures greater than or equal to 250 degrees Celsius. Since this area is structurally closer to the heating module 100, it is more easily exposed to higher temperature environments during actual use. If the material's temperature resistance is insufficient, problems such as deformation, aging, or performance degradation may occur. Therefore, by selecting materials with good temperature resistance, the risk of thermal damage can be reduced, and the stability and reliability of the heating component under high-temperature conditions can be improved.

[0070] In some embodiments, the portion of the support module 300 whose projections overlap with those of the heating module 100 along the radial projection of the accommodating cavity 110 is made of a high-temperature resistant material capable of withstanding temperatures greater than or equal to 250°C. Such high-temperature resistant materials include, but are not limited to, polyimide (PI) plastic, polyetheretherketone (PEEK) plastic, alumina ceramic, and zirconia ceramic. These materials possess good thermal stability and mechanical strength, which helps maintain structural integrity and performance under high-temperature conditions, thereby improving the safety and reliability of the heating component.

[0071] In some embodiments, refer to Figure 2 , Figure 3 The support module 300 includes a mounting bracket 310 and a guide bracket 330. The heating module 100 is mounted on the mounting bracket 310, and the guide bracket 330 is mounted on the mounting bracket 310 and positioned near the opening of the accommodating cavity 110. By configuring the support module 300 into two parts, the mounting bracket 310 and the guide bracket 330, it provides a certain degree of heat insulation. The mounting bracket 310 primarily supports the heating module 100, providing a stable mounting base, while the guide bracket 330 is located near the user's end, acting as a heat insulation buffer structure to help reduce heat conduction in that area, minimizing the impact of high-temperature components on the user, thereby improving safety and comfort to some extent.

[0072] In some embodiments, refer to Figure 3 , Figure 4The mounting bracket 310 has a mounting cavity 311 with an opening at one end, through which the heating module 100 is installed. One end of the mounting cavity 311 is a closed structure, while the other end has an opening, forming a single airflow path. This allows airflow to enter and exit only from the opening side, thereby limiting the direction of airflow and improving the predictability of airflow control. For example, the cross-section along the axial direction of the mounting bracket 310 is a U-shaped structure. The opening provides space for installing the heating module 100, while the closed end effectively blocks airflow penetration, helping the airflow to concentrate and enter the aerosol generation matrix 1, improving the stability and atomization efficiency of the gas entry, and also facilitating the positioning and installation of the heating module 100.

[0073] In some embodiments, the support module 300 further includes a connecting bracket 320, a guide bracket 330 mounted on the connecting bracket 320, and the connecting bracket 320 mounted on the mounting bracket 310. By segmenting the support module 300, the processing and assembly of the overall structure is simplified, production complexity and assembly difficulty are reduced, and manufacturing efficiency is improved. Especially when the support module 300 is long, a one-piece molded structure may face problems such as difficulty in controlling manufacturing precision and cumbersome assembly processes. Furthermore, the segmented structure can, to some extent, slow down the rapid heat conduction along the support module 300, thereby helping to reduce the temperature at the guide bracket 330 and improving safety and thermal insulation performance.

[0074] In some embodiments, refer to Figure 1 , Figure 2 A sealed connection is established between the connecting bracket 320 and the mounting bracket 310. This sealed connection helps prevent aerosol leakage to adjacent areas, thereby maintaining the integrity of the airflow path and the effective delivery of aerosols. Simultaneously, the sealed connection also helps prevent external impurities from entering the receiving cavity 110, maintaining the cleanliness and stability of the internal structure and contributing to improved overall performance and reliability of the heating element.

[0075] In some embodiments, a seal 340 is provided between the connecting bracket 320 and the mounting bracket 310 to ensure a sealed connection between them. This seal 340 not only effectively prevents aerosol leakage and maintains the integrity of the airflow path, but also provides insulation to a certain extent, helping to reduce the temperature on the guide bracket 330 side, thereby improving the safety and stability of the heating component. For example, the seal 340 can be silicone sealant. Silicone sealant has good elasticity and high-temperature resistance, forming an effective sealing interface between the connecting bracket 320 and the mounting bracket 310. While ensuring airtightness, it also provides a certain degree of insulation, which helps to limit heat conduction towards the guide bracket 330, thereby improving the thermal environment of the guiding area to a certain extent and enhancing user comfort and structural thermal stability.

[0076] In some embodiments, refer to Figure 1 , Figure 2 The support module 300 includes a guiding structure 350, which is configured to abut against the aerosol generating matrix 1 when it is located within the accommodating cavity 110, thereby fixing the aerosol generating matrix 1 within the accommodating cavity 110. The guiding structure 350 facilitates the guidance and positioning of the aerosol generating matrix 1 during installation, maintains the stability of its position during use, and improves the consistency of heating and the uniformity of atomization.

[0077] In some embodiments, the guiding structure 350 is configured to align the aerosol generating matrix 1 coaxially with the accommodating cavity 110 when the aerosol generating matrix 1 is located within the accommodating cavity 110. Through the guiding effect of this structure, the aerosol generating matrix 1 maintains a geometric position aligned with the cavity axis within the accommodating cavity 110, which helps maintain an equidistant relationship between the aerosol generating matrix 1 and the heating module 100 in the circumferential direction, thereby achieving a more uniform heat transfer path. This structural design helps to avoid problems such as excessive or insufficient local heating, improves the stability of the heating process and the uniformity of the atomization effect, and thus improves the user experience.

[0078] In some embodiments, refer to Figure 2 , Figure 3 The guiding structure 350 is disposed on the guiding bracket 330 of the support module 300. On the one hand, the guiding bracket 330 is located at one end of the aerosol generating matrix 1, which facilitates the guidance and positioning of the aerosol generating matrix 1 during installation and improves assembly efficiency. On the other hand, since the guiding bracket 330 is usually far away from the heat generation area, its operating temperature is relatively low, which helps to maintain the structural strength and shape stability of the guiding structure 350, thereby providing a more reliable limiting constraint for the aerosol generating matrix 1, avoiding shaking or displacement of the aerosol generating matrix 1 during use, and helping to ensure the uniformity of heating effect and the stability of device operation.

[0079] In some embodiments, refer to Figure 3 , Figure 4The guiding structure 350 is disposed on the mounting bracket 310 of the support module 300. The mounting bracket 310 is located on the side opposite to the guiding bracket 330. Its structure is relatively stable and has high rigidity. By setting the guiding structure 350 at this position, it helps to support and position the aerosol generating matrix 1 from the other end. It forms a double-end limiting structure with the guiding structure 350 on the guiding bracket 330 side, which to a certain extent enhances the axial and radial fixing effect of the aerosol generating matrix 1, improves the positioning accuracy and structural stability of the aerosol generating matrix 1 in the accommodating cavity 110, and thus helps to achieve a more uniform heating effect and more stable atomization performance.

[0080] In some embodiments, by providing guiding structures 350 on both the guiding bracket 330 and the mounting bracket 310, the aerosol generating matrix 1 can be positioned from both ends, forming a bidirectional limiting structure within the accommodating cavity 110. This structural design improves the positioning stability of the aerosol generating matrix 1 in the axial and radial directions, reduces displacement or shaking caused by vibration or airflow disturbance during use, and thus helps maintain a uniform distance between the aerosol generating matrix 1 and the heating module 100 to a certain extent, improving heating uniformity and the stability of aerosol generation, further optimizing the user experience.

[0081] For example, the guiding structure 350 may include a protrusion 351 disposed on the side facing the aerosol generating matrix 1. The protrusion 351 abuts against the outer wall of the aerosol generating matrix 1 when it is inserted into the receiving cavity 110, thereby limiting and guiding the aerosol generating matrix 1. There may be multiple protrusions 351, which are arranged at intervals along the circumference of the receiving cavity 110 to form an annular limiting support structure, so that the aerosol generating matrix 1 can maintain a coaxial fitting relationship with the receiving cavity 110.

[0082] For example, the guiding structure 350 can also be a clamping part or spring with a certain elasticity, which undergoes elastic deformation and fits against the outer wall of the aerosol generating matrix 1 when it is inserted, which helps to adapt to aerosol generating matrices 1 with different sizes and improves assembly compatibility.

[0083] For example, the guiding structure 350 may also include a guide groove or recess that matches the shape of the aerosol generating matrix 1, so as to achieve precise introduction and positioning of the aerosol generating matrix 1 through the geometric constraints of the groove.

[0084] For example, the guiding structure 350 can also be a limiting step set in the installation channel, used to form an end abutment after the aerosol generating matrix 1 is inserted to a preset depth, providing an axial limiting effect. This embodiment does not limit the specific form of the guiding structure 350, and various structural forms can be adopted according to actual needs to achieve the purpose of effectively positioning and limiting the aerosol generating matrix 1.

[0085] In some embodiments, refer to Figure 2 , Figure 3 The guiding structure 350 includes a protrusion 351 that protrudes toward the central axis of the accommodating cavity 110. This protrusion 351 abuts against the outer wall of the accommodating cavity 110 when the aerosol generating matrix 1 is inserted, thereby radially limiting the aerosol generating matrix 1. By providing this protrusion 351, the aerosol generating matrix 1 can be kept coaxial with the central axis within the accommodating cavity 110, which helps improve heating uniformity and enhances the consistency and stability of aerosol generation.

[0086] In some embodiments, refer to Figure 5 , Figure 6 The aerosol generating matrix 1 has multiple protrusions 351, which are spaced apart circumferentially along the accommodating cavity 110. This distribution allows for contact and positioning of the aerosol generating matrix 1 in multiple directions, thereby improving the positioning stability and coaxiality of the aerosol generating matrix 1 within the accommodating cavity 110. This facilitates uniform heat conduction during the heating process, improving the efficiency and consistency of aerosol generation. Furthermore, the spacing between the protrusions 351 creates openings for air passage between adjacent protrusions 351, allowing external gas to flow into the aerosol generating matrix 1 through these openings. This optimizes the airflow path and improves ease of use.

[0087] In some embodiments, refer to Figure 2 , Figure 3 The protrusions 351 include at least two groups, each group comprising multiple protrusions 351, with the at least two groups of protrusions 351 spaced apart along the axial direction of the accommodating cavity 110. This structural design enables limiting and guiding at different axial positions of the aerosol generating matrix 1, enhancing the positioning stability of the aerosol generating matrix 1 within the accommodating cavity 110, and particularly reducing the risk of displacement due to vibration or airflow disturbance during use. Simultaneously, the axial gaps between the protrusions 351 help prevent heat concentration to some extent, maintaining thermal balance in the heating area and thus promoting stable aerosol generation.

[0088] In some embodiments, refer to Figure 2 , Figure 3The heating module 100 has a first opening 140 communicating with the accommodating cavity 110. The aerosol generating matrix 1 enters the accommodating cavity 110 through the first opening 140. The protrusions 351 are arranged in groups. The grouped protrusions 351 include a first protrusion group 352, which is located on the support module 300 near the first opening 140. By setting the first protrusion group 352 near the first opening 140, the aerosol generating matrix 1 can be guided and limited in a timely manner during insertion into the accommodating cavity 110. This helps guide the aerosol generating matrix 1 along a set path to accurately enter the accommodating cavity 110 during the insertion stage, avoiding deviation or jamming, thereby improving assembly convenience and reliability. Furthermore, this structure can maintain a stable relative position between the aerosol generating matrix 1 and the accommodating cavity 110 during use, improving the overall heating effect and the uniformity of aerosol output.

[0089] In some embodiments, the heating module 100 further has a second opening 150 communicating with the accommodating cavity 110. The first opening 140 and the second opening 150 are disposed opposite to each other. The grouped protrusions 351 further include a second protrusion group 353 located at the second opening 150. By providing the first protrusion group 352 and the second protrusion group 353 respectively at the first opening 140 and the second opening 150, the aerosol generating matrix 1 can be limited and guided from both ends, thereby helping to maintain a stable coaxial state of the aerosol generating matrix 1 within the accommodating cavity 110. This double-end limiting structural design is beneficial to improving the heating uniformity of the aerosol generating matrix 1 during the heating process, further enhancing the stability and efficiency of aerosol generation.

[0090] According to the second aspect of this disclosure, referring to Figure 1 , Figure 7 Aerosol generating device is provided, including the heating component described in the above embodiments, and further including a power supply unit 10 and / or a control module 20. The power supply unit 10 is used to supply power to the heating module 100, and the control module 20 is configured to control the operation of the heating module 100 when the aerosol generating matrix 1 is located within the accommodating cavity 110. This aerosol generating device has all the beneficial effects of the heating component described above, which will not be elaborated further in this disclosure.

[0091] In some embodiments, the power supply unit 10 can be a battery unit, such as a lithium-ion battery, a lithium polymer battery, a nickel-metal hydride battery, or other rechargeable batteries, or it can be an external power interface, such as a USB interface, a Type-C interface, or a wireless charging receiver unit. Through the aforementioned battery unit or external power supply structure, a continuous and stable power supply can be provided to the heating module 100, which is beneficial for improving the heating efficiency of the heating module 100 and the stability of aerosol generation.

[0092] In some embodiments, the control module 20 may include a microcontroller (MCU), a power management chip, a drive circuit, a sensor assembly, or a logic control circuit. The control module 20 can work in conjunction with a sensing trigger assembly, a voltage detection circuit, or a temperature sensor to control the heating module 100 to switch on and off precisely upon detecting user actions, power-on status, or reaching a set temperature condition, thus saving energy and extending product lifespan. Exemplarily, the control module 20 includes a PCBA control board. This control board integrates a microcontroller unit, a power management circuit, and sensor interfaces, enabling precise control of the heating module 100, including startup, temperature adjustment, and power-off protection, which improves the stability and safety of the aerosol generating device.

[0093] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0094] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0095] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0096] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A heating element, characterized in that, include: A heating module has a accommodating cavity for accommodating an aerosol generating matrix, the heating module being used to heat the aerosol generating matrix located within the accommodating cavity; An airflow channel is formed between the accommodating cavity and the aerosol generating matrix. The airflow channel is configured to allow external gas to flow through the airflow channel and enter the aerosol generating matrix when the aerosol generating matrix is ​​used.

2. The heating component according to claim 1, characterized in that, An annular airflow channel is formed between the inner peripheral wall of the accommodating cavity and the outer peripheral wall of the aerosol generating matrix located within the accommodating cavity.

3. The heating component according to claim 1, characterized in that, The distance between the outer wall of the aerosol generating matrix and the inner wall of the accommodating cavity is 0.15mm-0.25mm.

4. The heating component according to claim 1, characterized in that, The heating module includes a heating element, which is arranged around the aerosol generating matrix. The heating element is used to generate heat, and the airflow channel is formed between the aerosol generating matrix and the heating element.

5. The heating component according to claim 1, characterized in that, The heating component further includes a heat insulation element, wherein: The heat insulation element is arranged around the heating module; and / or, The heat insulation component is attached to the outer wall of the heating module.

6. The heating component according to any one of claims 1 to 5, characterized in that, The heating component also includes a support module, and the heating module is mounted on the support module.

7. The heating element according to claim 6, characterized in that, The area where the projections of the support module and the heating module overlap along the radial projection of the accommodating cavity corresponds to a portion where the material of the support module can withstand a temperature greater than or equal to 250 degrees Celsius.

8. The heating element according to claim 6, characterized in that, The support module includes a mounting bracket and a guide bracket. The heating module is mounted on the mounting bracket, and the guide bracket is mounted on the mounting bracket and disposed near the opening side of the accommodating cavity.

9. The heating element according to claim 8, characterized in that, The mounting bracket has a mounting cavity with an opening at one end, and the heating module is installed in the mounting cavity through the opening.

10. The heating component according to claim 8, characterized in that, The support module further includes a connecting bracket, the guide bracket is mounted on the connecting bracket, and the connecting bracket is mounted on the mounting bracket.

11. The heating component according to claim 10, characterized in that, The connecting bracket and the mounting bracket are sealed together.

12. The heating component according to claim 10, characterized in that, A sealing element is provided between the connecting bracket and the mounting bracket to ensure a sealed connection between them.

13. The heating component according to claim 6, characterized in that, The support module includes a guiding structure; wherein... The guiding structure is configured to abut against the aerosol generating matrix when the aerosol generating matrix is ​​located within the accommodating cavity, thereby fixing the aerosol generating matrix within the accommodating cavity; and / or, The guiding structure is configured to align the aerosol generating matrix with the accommodating cavity coaxially when the aerosol generating matrix is ​​located within the accommodating cavity.

14. The heating component according to claim 13, characterized in that, The guiding structure is disposed on the guiding bracket of the support module; and / or, The guiding structure is mounted on the mounting bracket of the support module.

15. The heating component according to claim 13, characterized in that, The guiding structure includes a protrusion that protrudes toward the central axis of the accommodating cavity.

16. The heating component according to claim 15, characterized in that, The number of protrusions is multiple, and the multiple protrusions are distributed at intervals along the circumference of the accommodating cavity.

17. The heating component according to claim 15, characterized in that, The protrusions include at least two groups, each group including multiple protrusions, and the at least two groups of protrusions are distributed at intervals along the axial direction of the accommodating cavity.

18. The heating element according to claim 15, characterized in that, The heating module has a first opening communicating with the accommodating cavity, the aerosol generating matrix enters the accommodating cavity through the first opening, and the protruding portion is arranged in a group; The grouped protrusions include a first protrusion group, which is located on the support module near the first opening; and / or The heating module also has a second opening communicating with the accommodating cavity. The first opening and the second opening are arranged opposite to each other. The grouped protrusions also include a second protrusion group, which is located at the second opening.

19. An aerosol generating device, characterized in that, The heating component includes any one of claims 1 to 18, and further includes a power supply unit and / or a control module, wherein the power supply unit is used to supply power to the heating module, and the control module is configured to control the operation of the heating module when the aerosol generating matrix is ​​located within the accommodating cavity.

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