Heating element of aerosol-generating device and aerosol-generating device

Abstract

The application relates to the technical field of aerosol generating devices, and provides a heating core of an aerosol generating device and the aerosol generating device. The heating core of the aerosol generating device comprises a heating core base body, which has a pore inside and also has a first surface and a second surface and at least one side surface which are oppositely arranged in a first direction; a heating element which is connected to the first surface of the heating core base body; and a support assembly which is connected with the heating core base body and comprises a bottom frame and a side connecting rod which are connected with each other, the bottom frame is embedded into the second surface, and the side connecting rod is embedded into the at least one side surface. According to the technical scheme, the support assembly is embedded into multiple surfaces of the heating core base body, the overall strength of the heating core is improved, and the heating core base body is not prone to breaking and damage, so that the heating core base body can be provided with a higher porosity; and the frame structure and the connecting rod structure in the support assembly are used for supporting the heating core base body, the shielding area of the heating core base body is small, and the influence on the liquid guiding capacity of the heating core base body is reduced.

Description

Technical Field

[0001] This application relates to the field of aerosol generating device technology, specifically to a heating element of an aerosol generating device and an aerosol generating device. Background Technology

[0002] Currently, common aerosol generation devices typically incorporate ceramic heating elements to heat the aerosol matrix. Since the porosity and strength of the heating element are negatively correlated, a 10% increase in porosity leads to a 20% to 40% decrease in strength. In practical applications, to meet requirements for liquid conduction and heating, the heating element needs a certain porosity, making it difficult to effectively improve its structural strength. Consequently, the heating element is prone to breakage and damage when subjected to external forces during assembly and transportation. Utility Model Content

[0003] To address the problem that existing heating elements are difficult to effectively improve structural strength while maintaining porosity, leading to easy breakage and damage under external forces, this application provides a heating element for an aerosol generation device and an aerosol generation device.

[0004] An embodiment of the first aspect of the technical solution of this application provides a heating core for an aerosol generating device, comprising: a heating core substrate having pores inside, and further having a first surface and a second surface disposed opposite to each other in a first direction, and at least one side surface connecting the first surface and the second surface; a heating element connected to the first surface of the heating core substrate; and a support assembly connected to the heating core substrate, the support assembly including a bottom frame and side connecting rods connected to each other, the bottom frame being embedded in the second surface, and the side connecting rods being embedded in at least one side surface.

[0005] In a further embodiment of this application, the side connecting rod extends from the second surface to the first surface, and a preset distance is maintained between the side connecting rod and the heating element.

[0006] In a further embodiment of this application, the side link includes a first side link extending along a first direction; and / or, the first side link extends to the surface of a first face.

[0007] In a further embodiment of this application, the side link further includes a second side link, which is connected to the end of the first side link away from the bottom frame and extends in a second direction perpendicular to the first direction.

[0008] In a further embodiment of this application, the side link further includes a third side link, which is connected to the first side link and / or the bottom frame, and the extension direction of the third side link is at a preset tilt angle to the first direction.

[0009] In a further embodiment of this application, at least a portion of the structure of the bottom frame is located at the edge of the second surface and extends along the corresponding edge line on the second surface.

[0010] In a further embodiment of this application, the support assembly has a plurality of injection holes; the heating core substrate has a first connecting post at the position corresponding to the injection hole, the first connecting post fills the corresponding injection hole and is connected to the support assembly.

[0011] In a further embodiment of this application, at least a portion of the inner wall of the injection hole has a groove structure; the first connecting post located inside the injection hole has a protrusion structure, and the protrusion structure fills into the corresponding groove structure.

[0012] In a further embodiment of this application, the outer surface of the support assembly is flush with the corresponding surface on the heating core substrate; and / or, the heating core substrate is a ceramic structure, the support assembly is a metal structure or a ceramic structure, and the compressive strength and bending strength of the support assembly are higher than those of the heating core substrate.

[0013] In a further embodiment of this application, the heating element includes at least one of a heating mesh, a heating circuit, and a heating sheet; wherein, the side of the heating element facing the heating core substrate has a second connecting post, the second connecting post passing through the interior of the heating core substrate and being fixedly connected to the heating core substrate.

[0014] An embodiment of the second aspect of the technical solution of this application also provides an aerosol generating device, including: a housing, the housing having a heating chamber; and a heating core of the aerosol generating device in any of the embodiments of the first aspect, disposed in the heating chamber for heating the aerosol matrix.

[0015] In a further embodiment of this application, the aerosol generating device further includes: a power supply component, which is disposed inside the housing or connected to the housing, and is electrically connected to the heating element.

[0016] The beneficial effects of the above-mentioned technical solution of this application are as follows:

[0017] According to the technical solution in this application, by improving and optimizing the structure, the heating core substrate and the support assembly are connected by an embedded connection, so that the support assembly is embedded in multiple surfaces of the heating core substrate, thereby improving the overall strength of the heating core and making it less prone to breakage and damage, thus allowing the heating core substrate to have a higher porosity; moreover, the support assembly uses a frame structure and a connecting rod structure to support the heating core substrate, which reduces the area of ​​the heating core substrate that is blocked, which helps to reduce the impact on the liquid conduction capacity of the heating core substrate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the heating element of the aerosol generating device in one embodiment of this application;

[0019] Figure 2 This is a three-dimensional schematic diagram of the heating element of the aerosol generating device in one embodiment of this application from another perspective.

[0020] Figure 3 This is an exploded view of the heating element of the aerosol generating device in one embodiment of this application;

[0021] Figure 4 This is a perspective view of a bracket assembly in one embodiment of this application;

[0022] Figure 5 This is a perspective view of the support assembly in another embodiment of this application;

[0023] Figure 6 for Figure 5 The support assembly shown in the figure is a three-dimensional schematic diagram from another perspective;

[0024] Figure 7 This is a perspective view of the bracket assembly in another embodiment of this application;

[0025] Figure 8 for Figure 7 The support assembly shown in the figure is a three-dimensional schematic diagram from another perspective;

[0026] Figure 9 This is a front view of the bracket assembly in yet another embodiment of this application;

[0027] Figure 10 This is a cross-sectional view of the injection hole and the first connecting post in one embodiment of this application;

[0028] Figure 11 This is a cross-sectional view of the bottom frame in one embodiment of this application;

[0029] Figure 12 This is a cross-sectional view of the injection hole and the first connecting post in another embodiment of this application;

[0030] Figure 13 This is a schematic diagram of an aerosol generating apparatus in one embodiment of this application.

[0031] In the above-mentioned figures, arrow F1 indicates the first direction, arrow F2 indicates the second direction, and arrow F3 indicates the third direction.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 Heating core, 1 Heating core substrate, 11 First surface, 12 Second surface, 13 Side surface, 2 Heating element, 21 Second connecting post, 3 Support assembly, 31 Base frame, 32 Side connecting rod, 321 First side connecting rod, 322 Second side connecting rod, 323 Third side connecting rod, 33 Injection hole, 331 Groove structure, 34 First connecting post, 341 Protrusion structure;

[0034] 400 Aerosol generating device, 410 Housing, 411 Heating chamber, 412 Nozzle; 420 Power supply assembly. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0036] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0037] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0038] In common aerosol generation devices, a heating core is typically used as the core component to heat the aerosol matrix and generate aerosols. To facilitate a more uniform distribution of the aerosol matrix across different areas of the heating core, the heating core usually employs a porous structure, such as a ceramic heating core. However, since there is a negative correlation between the porosity and structural strength of the heating core, increasing the porosity leads to a decrease in structural strength, making it prone to fracture and damage under external forces. Therefore, there is an urgent need to provide a heating core that can balance porosity and structural strength.

[0039] The heating element of the aerosol generating device provided in this application is embeddedly connected to the heating element substrate using a support assembly with a bottom frame and side connecting rods, thereby improving the overall strength of the heating element and increasing the porosity of the heating element substrate. For ease of description, in the following embodiments, the heating element of the aerosol generating device is simply referred to as the heating element.

[0040] The following describes, with reference to the accompanying drawings, some embodiments of the heating element of the aerosol generating device provided in this application and some embodiments of the aerosol generating device.

[0041] An embodiment of the first aspect of this application provides a heating element 100 for an aerosol generating device, such as... Figure 1 , Figure 2 and Figure 3 As shown, the heating core 100 includes a heating core substrate 1, a heating element 2, and a support assembly 3. The heating core substrate 1 is a porous, heat-conducting structure, allowing the aerosol matrix to pass through the pores and flow to different areas on the heating core substrate 1, thereby guiding the aerosol matrix. The heating core substrate 1 has multiple surfaces, including a first surface 11 and a second surface 12 opposite each other in a first direction, and at least one side surface 13 connecting the first surface 11 and the second surface 12. The heating element 2 is disposed on the first surface 11 of the heating core substrate 1 and is fixedly connected to the heating core substrate 1. The support assembly 3 includes a bottom frame 31 and a side connecting rod 32 connected to each other. The bottom frame 31 is embedded into the second surface 12 of the heating core substrate 1, and the side connecting rod 32 is embedded into at least one side surface 13 of the heating core substrate 1, so that the support assembly 3 and the heating core substrate 1 form an embedded connection and fixation, forming an integral heating core 100. The support assembly 3 enhances the overall structural strength of the heating core 100, enabling it to withstand greater pressure and preventing breakage of the heating core substrate 1 under external forces. When the heating core 100 is used in an aerosol generation device, the heating element 2 can be electrically connected to the power supply assembly to generate heat when powered on, and conducts heat through the heating core substrate 1, allowing the aerosol matrix distributed in and around the heating core substrate 1 to be heated and generate aerosols.

[0042] It should be noted that in practical applications, the shapes of the heating core substrate 1 and the support assembly 3 are not limited to the examples shown in the figure. For example, the heating core substrate 1 can be as follows: Figure 1 The cuboid structure shown can also be a cube, cylinder, elliptical cylinder or other polyhedral structure; the number and installation position of the side connecting rods 32 of the bracket assembly 3 are not limited to the example shown in the figure, and can be set according to actual use needs.

[0043] It is understandable that the pores of the heating core substrate can guide the flow of the aerosol matrix, but if the surface of the heating core substrate is blocked too much, the contact area between the heating core substrate and the aerosol matrix will be reduced accordingly, thereby affecting the liquid conductivity of the heating core substrate.

[0044] In this embodiment, the heating element, through structural improvements and optimizations, adopts an embedded connection between the heating element substrate and the support assembly 3, allowing the support assembly to be embedded in multiple surfaces of the heating element substrate. This improves the overall strength of the heating element, making it less prone to breakage and damage, and enabling the heating element substrate to have a higher porosity. Furthermore, the support assembly uses a frame structure and a linkage structure to support the heating element substrate, resulting in a smaller area of ​​obstruction to the heating element substrate, which helps to reduce the impact on the liquid conductivity of the heating element substrate.

[0045] In further embodiments of this application, such as Figures 1 to 3 As shown, in the bracket assembly 3, the side connecting rod 32 extends from the second surface 12 of the heating core substrate 1 towards the first surface 11. Specifically, the side connecting rod 32 can extend perpendicularly to the first surface 11 or extend inclinedly to the first surface 11, so that the end of the side connecting rod 32 away from the second surface 12 gradually approaches the first surface 11. This increases the lateral strength of the heating core substrate 1, enabling it to withstand greater pressure. A preset distance is maintained between the side connecting rod 32 and the heating element 2. This preset distance includes the distance in the first direction and the distances in the second and third directions perpendicular to the first direction, to avoid interference with the heating of the heating element 2. The preset distance can be set according to the specific shape and size of the heating core substrate 1 and the bracket assembly 3.

[0046] Furthermore, in a specific implementation, such as Figures 1 to 4 In the example, side link 32 includes one or more first side links 321, for example... Figure 4 The four shown in the figure; the first side connecting rod 321 extends along the first direction, that is, the extension direction of the first side connecting rod 321 is perpendicular to the first surface 11 of the heating core substrate 1, which can shorten the length of the first side connecting rod 321, thereby reducing the obstruction of the first side connecting rod 321 on the surface of the heating core substrate 1.

[0047] In one specific example, such as Figure 1 , Figure 2 and Figure 4 In the example shown, on the surface of the heating core substrate 1, the first side connecting rod 321 is located at the connection point of two adjacent side surfaces 13 to fully utilize the three-dimensional space. This allows a single first side connecting rod 321 to simultaneously support two adjacent side surfaces 13. When either side surface 13 is subjected to external pressure, the first side connecting rod 321 can bear the pressure, thereby improving the structural strength of both side surfaces 13. Preferably, multiple first side connecting rods 321 can be provided according to the number of side surfaces 13 of the heating core substrate 1, so that each side surface 13 has a corresponding first side connecting rod 321 at the connection point with the adjacent side surface 13, thereby improving the structural strength of each side surface 13.

[0048] In another specific example, such as Figure 1 and Figure 2 In the example shown, in the first direction, the first side connecting rod 321 extends from the bottom frame 31 to the surface of the first surface 11 of the heating core substrate 1, that is, the side of the first side connecting rod 321 away from the bottom frame 31 is flush with the surface of the first surface 11 of the heating core substrate 1. When the first surface 11 of the heating core substrate 1 is subjected to external pressure, the end face of the first side connecting rod 321 can withstand the external pressure; correspondingly, when the second surface 12 of the heating core substrate 1 is subjected to external pressure, the bottom frame 31 and the first side connecting rod 321 can also withstand the external pressure. Through the above arrangement, the pressure borne by the heating core substrate 1 can be effectively reduced, thereby providing support for the heating core substrate 1 in the first direction and further improving the strength of the heating core 100. Preferably, depending on the specific shape of the heating core substrate 1, first side connecting rods 321 can be provided on multiple side surfaces 13 respectively, or multiple first side connecting rods 321 can be provided on the same side surface, so that the pressure on the heating core substrate 1 in the first direction can be distributed to multiple different first side connecting rods 321, which is beneficial to make the force relatively uniform and can further improve the structural strength.

[0049] Furthermore, in further embodiments of this application, such as Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the side connecting rod 32 of the support assembly 3 also includes a second side connecting rod 322. The second side connecting rod 322 is connected to the end of the first side connecting rod 321 away from the bottom frame 31, and the second side connecting rod 322 extends along a second direction, which is perpendicular to the first direction. The second side connecting rod 322 and the first side connecting rod 321 form a cross-connecting structure on the side surface 13 of the heating core substrate 1, which further enhances the support for the side surface 13 and increases its load-bearing capacity. Depending on the position of the first side connecting rod 321, different connection structures can be formed on the side surface 13, for example... Figure 5 and Figure 6 In the example, a closed rectangular frame is formed by two first side links 321, a vertically arranged second side link 322, and a border of the bottom frame 31, or as shown in the example. Figure 7 and Figure 8In the example, an I-shaped linkage structure is formed using a first side link 321, a second side link 322, and a frame of the bottom frame 31. Alternatively, when the heating core substrate 1 is a cylindrical structure, the second side link 322 can also be an arc-shaped rod or a ring-shaped rod extending circumferentially along the heating core substrate 1. Preferably, the surface of the second side link 322 away from the first side link 321 in the first direction is flush with the first surface 11 of the heating core substrate 1, so that when the first surface 11 of the heating core substrate 1 is subjected to external pressure, the second side link 322 can contact the structure applying the pressure and bear the pressure, so that the second side link 322 can bear the pressure on the first surface 11 and the adjacent side surface 13 of the heating core substrate 1 simultaneously. Moreover, since the second side link 322 extends along the second direction, the force-bearing area of ​​the second side link 322 is larger than that of the end face of the first side link 321, and the support coverage is also larger.

[0050] In further embodiments of this application, such as Figure 2 and Figure 9 As shown, the side connecting rod 32 of the support assembly 3 also includes a third side connecting rod 323. The third side connecting rod 323 is inclined relative to the first direction, that is, the extension direction of the third side connecting rod 323 forms a preset inclination angle with the first direction. The preset inclination angle can be set according to the specific shape and size of the heating core substrate 1 and the support assembly 3. The third side connecting rod 323 can be connected to the first side connecting rod 321 or to the bottom frame 31, so that the third side connecting rod 323 can be connected to the first side connecting rod 321 and / or the bottom frame 31 as a whole to transmit force. When the side 13 of the heating core substrate 1 is subjected to external pressure, the pressure can be borne by the third side connecting rod 323. Since the third side connecting rod 323 is inclined relative to the first direction, it can have a larger contact area, which is beneficial to increase its support and force-bearing capacity on the side 13 of the heating core substrate 1.

[0051] It should be noted that the number of third-side connecting rods 323 can be one or more. When multiple third-side connecting rods 323 are provided, different third-side connecting rods 323 can be set to have the same tilt direction and angle relative to the first direction, or they can be set to have different tilt directions and angles, for example... Figure 9 In the example above, the two third-side links 323 are tilted in opposite directions relative to the first direction, thus forming an intersecting link structure. Of course, the above... Figure 9 The example shown is only one of the preferred examples of the third side link 323. In practical applications, the third side link 323 can be set in different forms according to actual needs. For example, when the heating core substrate 1 is a cylinder, the third side link 323 can also be a spiral rod structure.

[0052] In one embodiment of this application, such as Figure 1and Figure 2 As shown, the bottom frame 31 is located entirely at the edge of the second surface 12 of the heating core substrate 1, and extends along the corresponding edge line on the second surface 12, for example... Figure 2 In the example, the heating core substrate 1 is a cuboid structure, the second surface 12 is a rectangular surface, and the bottom frame 31 is a rectangular frame. The four sides of the bottom frame 31 extend along the corresponding edge lines on the second surface 12, so that when the second surface 12 and the side surface 13 adjacent to the second surface 12 are subjected to external pressure, the bottom frame 31 can provide support and bear the corresponding pressure, thereby improving the structural strength of the heating core substrate 1.

[0053] It should be noted that in practical applications, the bottom frame 31 can be partially located at the edge of the second surface 12 according to specific usage requirements. In addition, when the heating core substrate 1 adopts other shapes, the structure of the bottom frame 31 can also be changed accordingly. For example, when the heating core substrate 1 adopts a cube, the side bottom frame 31 can also adopt a matching square frame structure, or when the heating core substrate 1 adopts a cylinder, the bottom frame 31 can adopt a matching circular frame structure. These will not be listed one by one here.

[0054] In further embodiments of this application, such as Figures 2 to 8 As shown, the support assembly 3 has multiple injection holes 33, and correspondingly, the heating core substrate 1 is provided with corresponding first connecting posts 34. The corresponding first connecting posts 34 are filled into the injection holes 33 and connected to the inner wall of the injection holes 33, as shown. Figure 10 The example in the diagram illustrates how a connection and fixation with the support assembly 3 can be formed. During the processing, the support assembly 3 can be embedded into the green blank of the heating core substrate 1 during the green blank forming process. After sintering, the support assembly 3 embedded in the heating core substrate 1 is obtained. The blank filling the injection hole 33 forms a corresponding first connecting post 34. Through the first connecting post 34 and the injection hole 33, on the one hand, the connection strength between the support assembly 3 and the heating core substrate 1 can be increased; on the other hand, the first connecting post 34 can be used to form a liquid guiding effect on the aerosol matrix at both ends of the injection hole 33, allowing the aerosol matrix to pass through the injection hole 33 and the support assembly 3, thereby increasing the liquid guiding volume and facilitating a more uniform distribution of the aerosol matrix.

[0055] It is understandable that the heating core substrate 1 has tiny pores for liquid conduction, but the contact surface between the support assembly 3 and the heating core substrate 1 will block the pores to a certain extent. When the blocked area is large, it is easy to cause poor liquid conduction in the heating core substrate 1, which is not conducive to uniform heating of the aerosol matrix.

[0056] By setting corresponding injection holes 33 on the support assembly 3 and filling the injection holes 33 with the first connecting post 34 of the heating core substrate 1, the area of ​​the support assembly 3 blocking the heating core substrate 1 can be effectively reduced, so that the aerosol matrix can flow between the two sides of the support assembly 3.

[0057] It should be noted that the injection hole 33 can be a circular hole as shown in the figure. Of course, it can also be set to other hole shapes, such as a square hole, depending on the application requirements. In practical applications, the injection hole 33 can be opened on the bottom frame 31 of the support assembly 3 as needed, such as... Figures 2 to 4 The example shown is that, of course, a corresponding injection hole 33 can also be opened on the side connecting rod 32, for example... Figure 11 As shown, an injection hole 33 is also provided on the first side connecting rod 321 of the support assembly 3, or, for example, Figures 5 to 8 As shown, an injection hole 33 is provided on the second side connecting rod 322 of the support assembly 3. Additionally, as... Figures 2 to 8 As shown, the injection hole 33 can be set along the first direction and pass through the corresponding part on the support assembly 3, or the injection hole 33 can be set to extend in other directions as needed, for example... Figure 11 The injection hole 33 shown is arranged in a third direction perpendicular to the first direction.

[0058] Furthermore, in one embodiment, such as Figure 12 In the example, a groove structure 331 is provided on the inner sidewall of the injection hole 33, while a protrusion structure 341 is formed on the outer sidewall of the corresponding first connecting post 34. The protrusion structure 341 fills into the corresponding groove structure 331, which can further increase the connection strength between the first connecting post 34 and the injection hole 33. During processing, the corresponding groove structure 331 can be pre-processed in the injection hole 33, and after the support assembly 3 is embedded in the green blank of the heating core substrate 1, the green blank fills into the groove structure 331 in the injection hole 33, thereby forming a first connecting post 34 with a protrusion structure 341 that fills the injection hole 33 and the groove structure 331 after sintering. The groove structure 331 is not limited to... Figure 12 The arc-shaped groove shown can also be set to other shapes of groove as needed.

[0059] In further embodiments of this application, such as Figure 1 and Figure 2As shown, the outer surface of the support assembly 3 is flush with the corresponding surface on the heating core substrate 1. For example, the second surface 12 of the heating core substrate 1 is flush with the surface of the bottom frame 31 of the support assembly 3 away from the first surface 11. On the side 13 of the heating core substrate 1, the outer surface of the side connecting rod 32 of the support assembly 3 located on the side 13 is flush with the surface of the side 13. This ensures that the support assembly 3 does not change the overall structural form after being embedded with the heating core substrate 1, and can effectively support the surface of the heating core substrate 1, thereby withstanding external pressure, improving the overall strength of the heating core 100, and preventing the heating core substrate 1 from breaking or being damaged under pressure.

[0060] In further embodiments of this application, such as Figures 1 to 3 As shown, the heating core substrate 1 specifically adopts a ceramic structure with fine pores to guide the aerosol matrix through. The support assembly 3 can be a metal structure, preferably a high-temperature resistant metal structure, such as stainless steel; of course, the support assembly 3 can also be a ceramic structure. The compressive strength and flexural strength of the support assembly 3 are both higher than those of the heating core substrate 1, thereby increasing the overall compressive and flexural strength of the heating core 100 to withstand greater external pressure without causing breakage or damage to the heating core substrate 1, thus meeting the high porosity requirement of the heating core substrate 1.

[0061] In further embodiments of this application, such as Figure 1 and Figure 3 As shown, the heating element 2 can be at least one of a heating mesh, a heating circuit, or a heating plate, and the specific choice can be made according to actual usage requirements. For example... Figure 3 In the example, the heating element 2 includes an extended curved heating line and a heating element connected thereto, forming a composite heating structure. A second connecting post 21 is provided on the side of the heating element 2 facing the heating core substrate 1, and the second connecting post 21 passes through the interior of the heating core substrate 1 to connect and fix it to the heating core substrate 1. During processing, the heating element 2 and the support assembly 3 can be embedded together into the green blank of the heating core substrate 1 during the green blank forming process, so that after sintering, the heating element 2 and the heating core substrate 1 are connected and fixed to form an integral heating core structure.

[0062] More preferably, such as Figure 3 In the example, multiple second connecting posts 21 can be spaced apart on the side of the heating element 2 facing the heating core substrate 1 to further increase the connection strength and prevent the heating element 2 from falling off.

[0063] Furthermore, a cross-shaped rod structure can be provided on the second connecting post 21 to further increase the contact area and improve the connection strength.

[0064] An embodiment of the second aspect of this application provides an aerosol generating apparatus 400, such as... Figures 1 to 3 as well as Figure 13 As shown, the aerosol generating apparatus 400 includes a housing 410 and a heating element 100 as described in any of the embodiments of the first aspect. A heating chamber 411 is provided inside the housing 410, and the heating element 100 is disposed inside the heating chamber 411 for heating the aerosol matrix, thereby heating the aerosol matrix and generating aerosols.

[0065] The surface of the heating core 100 is embedded with a support assembly 3, which can effectively improve the structural strength of the heating core 100 so as to withstand greater external pressure, so that the heating core substrate 1 can maintain a high porosity, increase the heating uniformity of the aerosol matrix, and prevent breakage or damage when subjected to external pressure.

[0066] Furthermore, such as Figure 13 As shown, the aerosol generating device 400 also includes a power supply component 420. The power supply component 420 is connected to the housing 410 and electrically connected to the heating element 2 of the heating core 100 to supply power to the heating element 2, enabling the heating element 2 to generate heat when energized, thereby heating the aerosol matrix attached to the heating core 100. The power supply component 420 and the housing 410 can be detachably connected, facilitating disassembly and assembly as needed during use.

[0067] Of course, the power supply component 420 can also be installed entirely inside the housing 410 of the aerosol generating device 400 to form an integrated structure.

[0068] The following describes a specific example of the aerosol generating apparatus 400 of this application with reference to the accompanying drawings.

[0069] like Figures 1 to 13 As shown, the aerosol generating device 400 can have a liquid storage chamber corresponding to the heating chamber 411 inside, for storing the aerosol matrix. The heating core 100 can be part of a heating assembly, for example, the heating assembly also includes a corresponding heating cover, and the heating chamber 411 is formed through the heating cover and communicates with the liquid storage chamber. The housing 410 has a corresponding suction nozzle 412 and an air inlet channel. The heating assembly is connected to the suction nozzle 412 and the air inlet channel through a corresponding pipe structure, so that the aerosol generated in the heating chamber 411 can mix with the air entering through the air inlet channel and then flow to the suction nozzle 412. The power supply assembly 420 can include an electrically connected battery and an electronic control board. The battery is electrically connected to the heating element 2 through a corresponding electrical connection structure, and the power supply state of the battery is controlled by the electronic control board.

[0070] like Figures 1 to 3In the example, the heating core 100 specifically adopts a cuboid heating core base 1 and a matching heating element 2 and a support assembly 3. The heating core base 1 has a first surface 11 and a second surface 12 facing each other in a first direction, and the heating element 2 is embedded in the first surface 11 of the heating core base 1. The heating element 2 includes two heating plates and a heating circuit. The heating circuit is located between the two heating plates and is arranged in an S-shape. The two ends of the heating core circuit are respectively connected to the corresponding heating plates. The heating plates and the heating circuit are respectively provided with a plurality of second connecting posts 21 on the side facing the heating core base 1. The second connecting posts 21 pass through the heating core base 1 and are fixedly connected to the heating core base 1. The support assembly 3 includes a rectangular base frame 31 and four first side connecting rods 321. The base frame 31 is embedded in the second surface 12 of the heating core substrate 1, and the four sides of the base frame 31 extend along the corresponding edge lines on the second surface 12. The four first side connecting rods 321 are located at the four vertices of the second surface 12, and each first side connecting rod 321 extends along a first direction to the surface of the first surface 11 of the heating core substrate 1. Each first side connecting rod 321 is located at the connection point of two adjacent side surfaces 13 of the heating core substrate 1 and is flush with the surface of the corresponding side surface 13. The support assembly 3 uses a high-temperature resistant metal structure, while the heating core substrate 1 uses a ceramic structure with fine pores. The compressive strength and bending strength of the support assembly 3 are both higher than those of the heating core substrate 1.

[0071] like Figure 3 and Figure 4 As shown, multiple injection holes 33 are provided on the bottom frame 31, and the injection holes 33 are distributed at intervals on the four sides of the bottom frame 31, all of which are through in the first direction. During processing, when the green body of the heating core substrate 1 is formed, the support assembly 3 and the heating element 2 are simultaneously embedded into the green body of the heating core substrate 1, and the green body is formed by sintering to connect and fix it with the support assembly 3 and the heating element 2 to form an integral structure. The injection holes 33 are also filled with ceramic structures to form first connecting pillars 34, so that the bottom frame 31 also forms a channel that can guide the flow of aerosol matrix, thereby reducing the area of ​​occlusion of the pores of the heating core substrate 1, increasing the flow range of the aerosol matrix, and preventing the phenomenon of local liquid conduction obstruction.

[0072] In this embodiment, the aerosol generating device 400, through structural improvements and optimizations, adopts a heating core 100 formed by an embedded connection between the heating core substrate 1, the support assembly 3, and the heating element 2. This allows the support assembly 3 to be embedded in multiple surfaces of the heating core substrate 1, thereby improving the overall strength of the heating core 100 and reducing the risk of breakage and damage to the heating core substrate 1. This enables the heating core substrate 1 to have a higher porosity. Furthermore, the support assembly 3 uses a frame structure and a connecting rod structure to support the heating core substrate 1, resulting in a smaller area of ​​obstruction to the heating core substrate 1, which helps to reduce the impact on the liquid conduction capacity of the heating core substrate 1.

[0073] Furthermore, the aerosol generating device 400 in this embodiment also has all the beneficial effects of the heating core 100 in any of the above embodiments, which will not be repeated here.

[0074] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating element for an aerosol generating device, characterized in that, include: A heating core substrate, wherein the heating core substrate has pores inside, and also has a first surface and a second surface disposed opposite to each other in a first direction, and at least one side surface connecting the first surface and the second surface; A heating element, wherein the heating element is connected to the first surface of the heating core substrate; And a support assembly connected to the heating core substrate, the support assembly including a bottom frame and side connecting rods connected to each other, the bottom frame being embedded in the second surface, and the side connecting rods being embedded in at least one of the side surfaces.

2. The heating element of the aerosol generating device according to claim 1, characterized in that, The side connecting rod extends from the second surface to the first surface, and a preset distance is maintained between the side connecting rod and the heating element.

3. The heating element of the aerosol generating device according to claim 2, characterized in that, The side link includes a first side link extending along a first direction; and / or The first side link extends to the surface of the first surface.

4. The heating element of the aerosol generating device according to claim 3, characterized in that, The side link further includes a second side link, which is connected to the end of the first side link away from the bottom frame and extends in a second direction perpendicular to the first direction.

5. The heating element of the aerosol generating device according to claim 3, characterized in that, The side link further includes a third side link, which is connected to the first side link and / or the bottom frame, and the extension direction of the third side link is at a preset angle to the first direction.

6. The heating element of the aerosol generating device according to claim 1, characterized in that, At least a portion of the structure of the base frame is located at the edge of the second surface and extends along the corresponding edge line on the second surface.

7. The heating element of the aerosol generating device according to any one of claims 1 to 6, characterized in that, The support assembly has multiple injection holes; The heating core substrate has a first connecting post at the position corresponding to the injection hole. The first connecting post fills the corresponding injection hole and is connected to the support assembly.

8. The heating element of the aerosol generating device according to claim 7, characterized in that, At least a portion of the inner wall of the injection hole has a groove structure; The first connecting post located in the injection hole has a protruding structure, which fills the corresponding groove structure.

9. The heating element of the aerosol generating device according to any one of claims 1 to 6, characterized in that, The outer surface of the support assembly is flush with the corresponding surface on the heating core substrate; and / or The heating core substrate is a ceramic structure, and the support assembly is a metal or ceramic structure, wherein the compressive strength and bending strength of the support assembly are higher than those of the heating core substrate.

10. The heating element of the aerosol generating device according to any one of claims 1 to 6, characterized in that, The heating element includes at least one of a heating mesh, a heating circuit, and a heating element; The heating element has a second connecting post on the side facing the heating core substrate, and the second connecting post passes through the interior of the heating core substrate and is fixedly connected to the heating core substrate.

11. An aerosol generating device, characterized in that, include: A housing having a heating chamber inside; And a heating element of the aerosol generating apparatus as described in any one of claims 1 to 10, disposed in the heating chamber, for heating the aerosol matrix.

12. The aerosol generating apparatus according to claim 11, characterized in that, Also includes: A power supply component is disposed inside or connected to the housing, and the power supply component is electrically connected to the heating element.

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