Heating element, nebulizer, and aerosol-generating device

Abstract

The utility model discloses a heating body, an atomizer and an aerosol generating device. The base body comprises a porous structure and a loading structure, the porous structure is provided with a plurality of micropores, the loading structure comprises a connecting surface and a heating surface, the connecting surface is used for being connected with the porous structure, and the heating surface is used for being in contact with an aerosol generating substrate. The heating element is arranged on the connecting surface or the heating surface and is used for heating the aerosol generating substrate to generate aerosol. In the application, the porous structure is provided with a plurality of micropores, so that the porous structure is relatively low in heat conductivity and has a relatively good heat insulation effect; wherein the heating element is arranged on the connecting surface or the heating surface, so that heat generated by the heating element is blocked by the porous structure and is difficult to dissipate to the outside, heat dissipation is reduced, and the heat generated by the heating element can act on the aerosol generating substrate more, so that the heat efficiency of the heating element can be improved, and the energy consumption of the aerosol generating device can be reduced; and the endurance time of the aerosol generating device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, and more particularly, to a heating element, an atomizer and an aerosol generating device. BACKGROUND

[0002] An aerosol generating device is a small device that can use a heating technology to act on an aerosol generating substrate and generate an aerosol. It mainly includes two types of devices for atomizing solid and liquid substrates. In the related art, the atomizer in the aerosol generating device includes a heating element, the heating element includes a base and a heating piece, the heating piece is arranged on the base and can heat the aerosol generating substrate in the base; or the base indirectly heats the aerosol generating substrate to make the aerosol generating substrate generate an aerosol. However, since the heating area of the heating element is large, the heat dissipation area of the heating element is also large accordingly, which causes the heat generated by the heating piece to be continuously dissipated to the outside, increases the heat loss of the heating piece, and reduces the thermal efficiency of the heating piece. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a heating element, an atomizer and an aerosol generating device to solve at least one of the above technical problems.

[0004] The heating element of the embodiments of the present application includes a base and a heating piece. The base includes a porous structure and a loading structure, the porous structure has a plurality of micropores, the loading structure includes a connecting surface and a heating surface, the connecting surface is used to connect with the porous structure, and the heating surface is used to contact with an aerosol generating substrate. The heating piece is arranged on the connecting surface or the heating surface, and the heating piece is used to heat the aerosol generating substrate to generate an aerosol.

[0005] In some embodiments, the plurality of micropores includes closed pores that are not connected with each other.

[0006] In some embodiments, the plurality of micropores includes connected pores that are connected with each other.

[0007] In some embodiments, the material of the porous structure is at least one of metal, ceramic and glass.

[0008] In some embodiments, in the direction from the connecting surface to the heating surface, the size of the porous structure is 0.1mm-5.0mm.

[0009] In some embodiments, the loading structure is a porous loose structure, and the porosity of the loading structure is less than the porosity of the porous structure.

[0010] In some embodiments, the substrate further comprises a first dense structure, which is connected to the porous structure and located on the opposite side of the loading structure from the porous structure.

[0011] In some embodiments, the substrate further comprises a second dense structure, which is connected to the heating surface and located between the aerosol generating substrate and the heating surface.

[0012] In some embodiments, the thermal conductivity of the porous structure is less than the thermal conductivity of the loading structure.

[0013] In some embodiments, the heating element further comprises a glaze layer arranged on the surface of the substrate.

[0014] In some embodiments, the substrate is a tubular structure.

[0015] In some embodiments, the substrate comprises opposite first and second ends in the axial direction of the substrate; the heating element further comprises a first connector arranged at the first end of the substrate, and the thermal conductivity of the first connector is less than the thermal conductivity of the loading structure.

[0016] In some embodiments, the substrate comprises opposite first and second ends in the axial direction of the substrate; the heating element further comprises a second connector arranged at the second end of the substrate, and the thermal conductivity of the second connector is less than the thermal conductivity of the loading structure.

[0017] In some embodiments, the substrate is a flat plate structure.

[0018] In some embodiments, the heating element further comprises a storage member arranged on the heating surface and used for storing the aerosol generating substrate, and the storage member is a porous loose structure.

[0019] The atomizer of the embodiments of the present application comprises the heating element of any of the above embodiments.

[0020] The aerosol generating device of the embodiments of the present application comprises an electronic control assembly and the atomizer of the above embodiments, and the atomizer is electrically connected to the electronic control assembly.

[0021] In the heating element, atomizer, and aerosol generating device of this application, the porous structure has multiple micropores. Therefore, the porous structure has a low thermal conductivity and a good heat insulation effect. The heating element is disposed on the connecting surface or heating surface. As a result, the heat generated by the heating element is blocked by the porous structure and is difficult to dissipate to the outside, reducing heat dissipation. This allows the heat generated by the heating element to act more on the aerosol generating matrix, thereby improving the thermal efficiency of the heating element, reducing the energy consumption of the aerosol generating device, and extending the operating time of the aerosol generating device.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of an aerosol generating apparatus according to certain embodiments of this application;

[0025] Figure 2 yes Figure 1 A three-dimensional structural schematic diagram of one embodiment of the heating element in the aerosol generating device shown.

[0026] Figure 3 yes Figure 2 The diagram shown is a three-dimensional exploded view of the heating element.

[0027] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the heating element.

[0028] Figure 5 yes Figure 1 A three-dimensional structural schematic diagram of another embodiment of the heating element in the aerosol generating device shown.

[0029] Figure 6 yes Figure 5 The diagram shows a three-dimensional exploded view of the heating element.

[0030] Figure 7 yes Figure 5 The diagram shows a cross-sectional view of the heating element.

[0031] Figure 8 yes Figure 1 A three-dimensional structural schematic diagram of another embodiment of the heating element in the aerosol generating device shown;

[0032] Figure 9 yes Figure 8 The diagram shows a cross-sectional view of the heating element.

[0033] Figure 10 is Figure 1 a perspective structural schematic view of another embodiment of the heating element in the aerosol-generating device shown in FIG. 1;

[0034] Figure 11 is Figure 10 a perspective exploded schematic view of the heating element shown in FIG. 1;

[0035] Figure 12 is Figure 1 a perspective structural schematic view of an embodiment of the heating element in the aerosol-generating device shown in FIG. 1;

[0036] Figure 13 is Figure 12 a cross-sectional schematic view of the heating element shown in FIG. 1;

[0037] Figure 14 is Figure 1 a perspective structural schematic view of an embodiment of the heating element in the aerosol-generating device shown in FIG. 1;

[0038] Figure 15 is Figure 14 a cross-sectional schematic view of the heating element shown in FIG. 1;

[0039] Figure 16 is Figure 1 a perspective structural schematic view of an embodiment of the heating element in the aerosol-generating device shown in FIG. 1;

[0040] Figure 17 is Figure 16 a cross-sectional schematic view of the heating element shown in FIG. 1;

[0041] Figure 18 is a cross-sectional schematic view of a partial structure of the heating element in the aerosol-generating device of some embodiments of the present application;

[0042] Figure 19 is a cross-sectional schematic view of a partial structure of the heating element in the aerosol-generating device of some embodiments of the present application.

[0043] Explanation of main element symbols:

[0044] 1000 aerosol-generating device;

[0045] 100 atomizer; 300 electric control assembly; 500 housing;

[0046] 10 heating element;

[0047] 11 base, 101 first end; 103 second end; 111 porous structure, 1111 micropore, 113 loading structure, 1131 connecting surface, 1133 heating surface, 115 first dense structure, 117 second dense structure;

[0048] 13 heating element; 14 first electrical connection; 15 second electrical connection; 16 first connection; 17 second connection; 19 storage element. DETAILED DESCRIPTION

[0049] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the scope of the present application, and it is understood that similar improvements can be made by those skilled in the art in light of the foregoing description. Therefore, the present application is not limited to the following disclosed specific embodiments.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless specifically defined otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal height than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal height than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical", "horizontal", "up", "down", "left", "right", and the like used herein are for illustrative purposes only and are not intended to be the only implementation.

[0055] In the related art, the atomizer in the aerosol generating device includes a heating body, the heating body includes a base body and a heating piece, the heating piece is arranged on the base body and can heat the aerosol generating substrate in the base body; or the base body indirectly heats the aerosol generating substrate to make the aerosol generating substrate generate aerosol. However, since the heating area of the heating body is large, the heat dissipation area of the heating body is also large accordingly, which causes the heat generated by the heating piece to be continuously dissipated to the outside, increases the heat loss of the heating piece, and reduces the thermal efficiency of the heating piece. To solve this problem, please refer to Figure 1 , and in combination with Figures 2-4 , Figures 5-7 , Figures 8-9 , Figures 10-11 , Figures 12-13 , Figures 14-15 , Figures 16-17 , Figure 18 , or Figure 19 , the present application provides a heating body 10, an atomizer 100 and an aerosol generating device 1000.

[0056] Please refer to Figure 1 , the aerosol generating device 1000 provided by the embodiments of the present application includes an atomizer 100 and an electronic control assembly 300, the atomizer 100 is electrically connected with the electronic control assembly 300.

[0057] It can be understood that the aerosol-generating device 1000 is a structure capable of generating aerosol by heating an aerosol-generating substrate. The aerosol-generating substrate is an article that is processed and can generate aerosol after being heated. The aerosol-generating substrate can be in a liquid state, or can be in a full solid state or a semi-solid state. For example, when the aerosol-generating substrate is in a full solid state, the aerosol-generating substrate can be in a sheet shape or a column shape, etc. The aerosol-generating substrate can be prepared by processes such as rolling, thick paste, die casting, and extrusion. The aerosol can be visible or invisible and can include vapor (e.g., fine particulate matter in a gaseous state, which is usually a liquid or a solid at room temperature), as well as gas and liquid droplets of condensed vapor.

[0058] In some embodiments, the electric control assembly 300 includes a power supply unit and a controller. The power supply unit is configured to provide power for the operation of the atomizer 100, so that the atomizer 100 can heat the atomized aerosol-generating substrate to form aerosol; the controller is electrically connected to the power supply unit, and the controller is configured to control the operation of the atomizer 100 (including the start and stop of the atomizer 100 and the switching of the working mode, etc.). For example, when the aerosol-generating device 1000 is puffed, the controller can control the power supply unit to supply power to the atomizer 100, in which case the power of the power supply unit can be transmitted to the atomizer 100 to make the atomizer 100 work and heat the atomized aerosol-generating substrate; when the user does not use the aerosol-generating device 1000, the atomizer 100 stops heating the aerosol-generating substrate. It should be noted that, in some embodiments, the power supply unit can be a dry battery, a rechargeable battery, or a capacitor, etc. The rechargeable battery includes but is not limited to a lithium ion battery, a nickel-hydrogen battery, and a nickel-cadmium battery, etc.

[0059] Further, in some embodiments, the aerosol-generating device 1000 further includes a housing 500, and the atomizer 100 and the electric control assembly 300 are arranged in the housing 500.

[0060] Specifically, the housing 500 is a structure capable of accommodating and protecting the atomizer 100 and other devices in the aerosol-generating device 1000. The material of the housing 500 includes but is not limited to plastic, aluminum alloy, copper, iron, steel, and carbon fiber composite material, etc. In one example, the housing 500 can be made of plastic, so that the housing is more portable, which is conducive to the portability of the aerosol-generating device 1000. In another example, the housing 500 can be made of high-temperature-resistant material, so that the housing 500 can be prevented from being damaged (e.g., deformed, etc.) due to heat, thereby ensuring the stability and reliability of the aerosol-generating device 1000. The high-temperature-resistant material includes but is not limited to polyether ether ketone (PEEK) material, high-melting-point metal, high-temperature-resistant ceramic, etc.

[0061] In the aerosol-generating device 1000 of the present embodiment, the aerosol-generating device 1000 includes the atomizer 100. It can be understood that the aerosol-generating device 1000 at least includes the same beneficial effects as the atomizer 100. Therefore, the beneficial effects of the aerosol-generating device 1000 are described below in the beneficial effects of the atomizer 100.

[0062] Referring to Figure 1 The atomizer 100 provided by the present embodiment includes the heating body 10. In the atomizer 100 of the present embodiment, the atomizer 100 includes the heating body 10. It can be understood that the atomizer 100 at least includes the same beneficial effects as the heating body 10. Therefore, the beneficial effects of the atomizer 100 are described below in the beneficial effects of the heating body 10.

[0063] Referring to Figure 1 and in combination with Figures 2-4 , Figures 5-7 , Figures 8-9 , Figures 10-11 , Figures 12-13 , Figures 14-15 , Figures 16-17 , Figure 18 , or Figure 19 The heating body 10 provided by the present embodiment includes the base body 11 and the heating member 13. The base body 11 includes the porous structure 111 and the loading structure 113. The porous structure 111 has a plurality of micropores 1111. The loading structure 113 includes the connecting surface 1131 and the heating surface 1133. The connecting surface 1131 is used to connect the porous structure 111. The heating surface 1133 is used to contact the aerosol-generating substrate. The heating member 13 is arranged on the connecting surface 1131 or the heating surface 1133. The heating member 13 is used to heat the aerosol-generating substrate to generate the aerosol.

[0064] The base body 11 is a structure of the heating body 10 for loading elements other than the base body 11. The outer contour shape of the base body 11 can be a regular shape or an irregular shape. The regular shape herein includes but is not limited to a rectangle, a circle, a cylinder, a triangle, a polygon, etc. In the case where the outer contour shape of the base body 11 is an irregular shape, the heating body 10 can adapt to the structural layout of the atomizer 100, facilitating compact arrangement of other components. In some embodiments of the present application, the base body 11 includes the porous structure 111 and the loading structure 113. The shape of the porous structure 111 and the shape of the loading structure 113 can be substantially the same, so that the overall structure of the base body 11 is relatively regular, facilitating assembly of the base body 11 in the atomizer 100.

[0065] The porous structure 111 is a structure in the base body 11 mainly used for preventing heat dissipation. In some embodiments of the present application, the porous structure 111 has a plurality of micropores 1111, i.e., there are a plurality of spaces in the porous structure 111 that are not filled with solid matter. The presence of the micropores 1111 makes the path of heat transfer more complex and tortuous, increases the resistance of heat transfer, and reduces the thermal conductivity of the porous structure 111. In addition, because the gas in the micropores 1111 has a thermal conductivity smaller than that of solid materials, the gas in the micropores 1111 can also hinder the transfer of heat, thereby making the porous structure 111 have better heat insulation effect. It should be noted that, in some embodiments, the plurality of micropores 1111 includes closed pores that are not connected to each other.

[0066] It can be understood that the loading structure 113 is preferably made of a material with low thermal conductivity, such as a material with a thermal conductivity less than 2 W / m*K. -1

[0067] In some embodiments of the present application, the connecting surface 1131 of the loading structure 113 can be connected together with the porous structure 111 to form the base body 11 together; and the heating surface 1133 can be in contact with the aerosol generating substrate, so that the heat generated by the heating element 13 can act on the aerosol generating substrate through the heating surface 1133 to make the aerosol generating substrate generate aerosol by heating. The aerosol generating substrate herein includes but is not limited to a liquid substrate, a solid substrate, or a paste substrate.

[0068] In some embodiments, the porous structure 111 and the loading structure 113 are an integral structure, i.e., the porous structure 111 and the loading structure 113 are an integral structure made by an integral molding process, thereby improving the bonding strength of the porous structure 111 and the loading structure 113, preventing the porous structure 111 and the loading structure 113 from being separated during the operation of the heating body 10, and improving the stability and reliability of the operation of the heating body 10. In other embodiments, the porous structure 111 and the loading structure 113 are separate structures, i.e., the porous structure 111 and the loading structure 113 are two different structures. The connecting surface 1131 of the porous structure 111 and the loading structure 113 can be connected together by a detachable connection mode or a non-detachable connection mode. The detachable connection mode includes but is not limited to bolt connection or buckle connection, etc.; and the non-detachable connection mode includes but is not limited to bonding or welding, etc.

[0069] ​The heating element 13 is a structure in the heating body 10 used to heat the aerosol generation matrix. In some embodiments of this application, the heating element 13 includes, but is not limited to, heating circuits, heating films, heating sheets, heating wires, and heating meshes. The heating circuits can be PVD thin films or printed thick films. The heating element 13 can be made of a metal material with appropriate impedance, such as at least one of silver, silver palladium, platinum, gold, copper, nickel, aluminum, tungsten, 430, 316L, and FeCrAl; the heating element 13 can also be made of metal composite materials, such as at least one of cermet, metallic glass, and conductive ceramics. It should be noted that in some embodiments, the heating element 13 may have certain antioxidant properties.

[0070] For example, please refer to Figures 5-7 The heating element 13 is a heating wire, which is spiral-shaped. For example, a user can wind the heating wire into a spiral shape using a spring winding machine. The heating element 10 also includes a first electrical connector 14 and a second electrical connector 15, which are electrically connected to opposite ends of the heating wire and can form a circuit loop with the electronic control component 300. For example, when both the first electrical connector 14 and the second electrical connector 15 are electrically connected to the electronic control component 300, electrical energy from the electronic control component 300 can flow through the first electrical connector 14 to the heating wire to generate heat, and electrical energy can flow back from the heating wire to the electronic control component 300 through the second electrical connector 15.

[0071] In some embodiments, the heating element 13 is disposed on the connecting surface 1131, thereby preventing direct contact between the heating element 13 and the aerosol generating matrix. This reduces the likelihood of corrosion of the heating element 13, extends its service life, and ensures the normal operation of the heating element 10. Furthermore, it prevents aerosols generated by the aerosol generating matrix from contacting the heating element 13, avoiding condensation and the formation of black charred material, thus ensuring a better suction experience for the user. Additionally, compared to the side of the substrate 11 away from the aerosol generating matrix, i.e., compared to the side of the porous structure 111 opposite to the loading structure 113, the heating element 13 is closer to the aerosol generating matrix, resulting in a faster heat transfer rate, increased heating rate of the aerosol generating matrix, reduced suction waiting time, and improved suction experience for the user.

[0072] In some other embodiments, the heating element 13 is arranged on the heating surface 1133, so that, compared with the heating element 13 being arranged on the side of the base body 11 away from the aerosol generating substrate, i.e. compared with the heating element 13 being arranged on the side of the porous structure 111 opposite to the loading structure 113, the heating element 13 can directly heat the aerosol generating substrate, has a faster heat transfer rate, further improves the heating rate of the aerosol generating substrate, reduces the waiting time for smoking and generates aerosol faster, and improves the smoking experience of the user.

[0073] In yet some other embodiments, the heating element 13 is arranged between the connecting surface 1131 and the heating surface 1133, i.e. the heating element 13 is embedded in the loading structure 113. In this way, on the one hand, the possibility of interference and damage of the heating element 13 with the external structure can be reduced, thereby prolonging the service life of the heating element 13 and ensuring the stability and reliability of the heating body 10; on the other hand, the space size occupied by the heating element 13 can be reduced, which is conducive to the miniaturization of the heating body 10.

[0074] In addition, the heating element 13 is arranged between the connecting surface 1131 and the heating surface 1133, which can also make the heat generated by the heating element 13 act more on the aerosol generating substrate, so that, on the one hand, the heating effect on the aerosol generating substrate can be enhanced, and the smoking taste of the user can be ensured; on the other hand, the possibility of heat dissipation to other structural members (such as a shell, etc.) of the aerosol generating device 1000 can be reduced, the temperature of the outer wall of the aerosol generating device 1000 can be reduced, and the use experience of the user can be improved.

[0075] In the heating body 10 of the embodiments of the present application, the porous structure 111 has a plurality of micropores 1111, so that the thermal conductivity of the porous structure 111 is low and has good heat insulation effect; wherein the heating element 13 is arranged between the connecting surface 1131 and the heating surface 1133, so that the heat generated by the heating element 13 is difficult to dissipate to the outside due to the blockage of the porous structure 111, the heat dissipation is reduced, and the heat generated by the heating element 13 can act more on the aerosol generating substrate, so that the thermal efficiency of the heating element 13 can be improved, the energy consumption of the aerosol generating device 1000 can be reduced, and the endurance time of the aerosol generating device 1000 can be prolonged.

[0076] The heating body 10 will be further described below in conjunction with the accompanying drawings.

[0077] Please refer to Figures 2-4 、 Figures 5-7 、 Figures 8-9 、 Figures 10-11 、 Figures 12-13 、 Figures 14-15 、 Figures 16-17 、 Figure 18 、or Figure 19In some embodiments, the porous structure 111 is made of at least one of metal, ceramic and glass. It can be understood that the porous structure 111 can also be made of a composite of various materials.

[0078] For example, the porous structure 111 is made of porous ceramic. The porous ceramic can be prepared by mixing ceramic slurry with pore-forming agent and then sintering. The sintered ceramic body has a large number of pores, which are the micropores 1111 of the porous structure 111. It can be understood that in some embodiments, the micropores 1111 of the porous structure 111 can also be artificially formed. For example, the user can punch the micropores 1111 on the porous structure 111 by laser drilling or mechanical punching.

[0079] In some embodiments, the size of the porous structure 111 in the direction from the connecting surface 1131 to the heating surface 1133 is 0.1-5.0 mm. Specifically, in some embodiments, the size of the porous structure 111 is any one of 0.1 mm, 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, and 5.0 mm or any value between any two of them.

[0080] If the size of the porous structure 111 in the direction from the connecting surface 1131 to the heating surface 1133 is less than 0.1 mm, the heat insulation effect of the porous structure 111 is poor and the strength is low, resulting in large heat loss of the heating element 13 and reducing the thermal efficiency of the heating element 13. If the size of the porous structure 111 in the direction from the connecting surface 1131 to the heating surface 1133 is greater than 5.0 mm, the size of the porous structure 111 is large, which is not conducive to the miniaturization of the heating body 10. In some embodiments of the present application, the size of the porous structure 111 is 0.1-5.0 mm, which can on the one hand ensure that the porous structure 111 has a better heat insulation effect, reduces heat loss and improves the thermal efficiency of the heating element 13, on the other hand prevents the size of the porous structure 111 from being too large, which is conducive to the miniaturization of the heating body 10, and on the other hand ensures the structural strength of the porous structure 111 and improves the stability of the heating body 10.

[0081] In some embodiments, the loading structure 113 is a porous loose structure.

[0082] Specifically, in some embodiments, the loading structure 113 is a porous loose structure, i.e., the loading structure 113 has a plurality of micropores, whereby the loading structure 113 can also play a role in heat insulation, so as to further reduce heat loss, improve the thermal efficiency of the heating element 13, reduce the energy consumption of the aerosol generating device 1000, and prolong the endurance time of the aerosol generating device 1000. For example, when the loading structure 113 is a porous loose structure, the heating element 13 can be arranged on the heating surface 1133. In this way, the heat dissipation path to the outside world is blocked by the loading structure 113 and the porous structure 111, so as to further reduce heat loss and improve the thermal efficiency of the heating element 13.

[0083] Further, in some embodiments, when the loading structure 113 is a porous loose structure, the porosity of the loading structure 113 is less than the porosity of the porous structure 111. In this way, the thermal conductivity of the loading structure 113 can be ensured, and when the heating element 13 is arranged on the connecting surface 1131, the heat generated by the heating element 13 can be conducted to the aerosol generating substrate through the loading structure 113, so as to ensure the heating effect of the heating body 10 on the aerosol generating substrate and the smoking taste of the user.

[0084] In other embodiments, the loading structure 113 is a dense structure.

[0085] Specifically, in some embodiments, the loading structure 113 is a dense structure, i.e., the loading structure 113 has no micropores, whereby the thermal conductivity of the loading structure 113 can be ensured, and the heat generated by the heating element 13 can be easily conducted in the loading structure 113, which is conducive to improving the overall temperature uniformity, ensuring the heating effect of the heating element 13 on the aerosol generating substrate, and improving the smoking experience of the user. For example, the loading structure 113 can be a dense ceramic, which can be made of at least one of aluminum nitride, silicon carbide, aluminum oxide, zirconium oxide, and silicon nitride. In this way, the thermal conductivity of the loading structure 113 can be ensured, and heat loss during heat conduction can be reduced, so that the temperature of the aerosol generating substrate meets its atomization requirements more quickly, and the atomization efficiency is improved.

[0086] In some embodiments, the material of the loading structure 113 is at least one of metal, ceramic, and glass. It can be understood that the material of the loading structure 113 can also be a composite material of various materials.

[0087] Exemplarily, in the case that the loading structure 113 is a porous loose structure, the material of the loading structure 113 is porous ceramic. The porous ceramic can be prepared by mixing ceramic slurry with pore-forming agent and then sintering. The sintered ceramic body has a large number of pores, which are the micropores of the loading structure 113 in the present disclosure. It can be understood that, in some embodiments, in the case that the loading structure 113 is a porous loose structure, the micropores in the loading structure 113 can also be artificial holes. For example, the user can punch holes on the loading structure 113 by means of laser drilling or mechanical drilling to form micropores.

[0088] In some embodiments, the size of the loading structure 113 in the direction from the connecting surface 1131 to the heating surface 1133 is 0.02mm-1.0mm. Specifically, in some embodiments, the size of the loading structure 113 is any one value or any value between any two values of 0.02mm, 0.03mm, 0.05mm, 0.1mm, 0.5mm and 1.0mm.

[0089] Since in the case that the heating element 13 is arranged on the connecting surface 1131, the heat generated by the heating element 13 needs to be transmitted to the aerosol generating substrate through the loading structure 113, and the loading structure 113 will also absorb a certain amount of heat due to the problem of specific heat capacity, and the amount of heat absorbed is positively correlated with the volume and density of the loading structure 113. If the size of the loading structure 113 in the direction from the connecting surface 1131 to the heating surface 1133 is greater than 1.0mm, the loading structure 113 will absorb more heat, resulting in less heat being transmitted to the aerosol generating substrate, and thus the heating body 10 needs a longer time to reach the atomization temperature of the aerosol generating substrate, affecting the atomization efficiency; if the size of the loading structure 113 in the direction from the connecting surface 1131 to the heating surface 1133 is less than 0.02mm, the strength of the loading structure 113 is too low, which is easy to be damaged (such as deformation or fracture, etc.), affecting the normal work of the heating body 10. In some embodiments of the present application, the size of the loading structure 113 in the direction from the connecting surface 1131 to the heating surface 1133 is 0.02mm-1.0mm, which can on the one hand prevent the size of the loading structure 113 from being too large to affect heat transmission, thereby ensuring the atomization efficiency; on the other hand, it can avoid the problem that the loading structure 113 is easy to be damaged due to the low strength of the loading structure 113, thereby ensuring the normal work of the heating body 10; and on the other hand, it can prevent the size of the loading structure 113 from being too large, thereby being conducive to the miniaturization of the heating body 10.

[0090] In some embodiments, the temperature coefficient of resistance (TCR) of the heating element 13 is greater than or equal to 1000 ppm / K. Specifically, in some embodiments, the temperature coefficient of resistance of the heating element 13 is 1000 ppm / K, 1100 ppm / K, 1200 ppm / K, 1300 ppm / K, 1400 ppm / K, 1500 ppm / K, 1600 ppm / K, 1700 ppm / K, 1800 ppm / K, 1900 ppm / K, 2000 ppm / K, or any value greater than or equal to 1000 ppm / K, or any value between any two values greater than or equal to 1000 ppm / K.

[0091] In some embodiments, the temperature coefficient of resistance of the heating element 13 is greater than or equal to 1000 ppm / K, so that the heating element 13 can achieve the effect of automatic temperature control. That is, because the resistance value of the heating element 13 increases with the increase of temperature, when working at a constant voltage, the heating power of the heating element 13 will decrease with the increase of temperature, and finally stay at a predetermined temperature value, so that the heating element 13 can achieve automatic temperature control without additional temperature sensor and control circuit. On the one hand, this can prevent the temperature of the heating element 13 from being too high to cause damage, prolong the service life of the heating element 13, and ensure the use safety of the aerosol generating device 1000. On the other hand, this can prevent the temperature of the heating element 13 from being too high to cause the aerosol generating substrate to be burnt, and ensure the user's smoking taste.

[0092] In some embodiments, the heating element 13 includes a plurality of heating elements 13, and the plurality of heating elements 13 are connected in parallel. When the heating body 10 is working, at least one of the plurality of heating elements 13 generates heat to heat the aerosol generating substrate.

[0093] Specifically, in some embodiments, the heating body 10 further includes a first electrical connection 14 and a second electrical connection 15, both of which are electrically connected to the heating element 13 and can form a circuit loop together with the electric control assembly 300. For example, the electric energy of the electric control assembly 300 can flow to the heating element 13 through the first electrical connection 14 to make the heating element 13 generate heat, and the electric energy can flow back to the electric control assembly 300 from the heating element 13 through the second electrical connection 15.

[0094] At least one of the plurality of heating elements 13 is powered to generate heat to heat the aerosol generating substrate when the heating body 10 is in operation, that is, the plurality of heating elements 13 can form multiple heating powers in the modes of independent operation, combined operation or alternating operation to heat the aerosol generating substrate, thereby increasing the number of gears of the heating body 10 and effectively meeting the use requirements of the user. In addition, the plurality of heating elements 13 can heat and atomize the aerosol generating substrate in the modes of independent operation or alternating operation, at this time, part of the plurality of heating elements 13 can be in a non-working state, so that the heating element 13 in the non-working state can be cooled down, thereby preventing the heating element 13 from being damaged due to overheating caused by long-time operation, and prolonging the service life of the heating element 13 and ensuring the stability and reliability of the operation of the heating body 10.

[0095] Please refer to Figures 2-4 , or Figure 10 and Figure 11 In some embodiments, the first electrical connection 14 includes a plurality of first electrical connections 14, each of which is electrically connected to one of the plurality of heating elements 13; the second electrical connection 15 includes one second electrical connection 15, which is electrically connected to each of the plurality of heating elements 13, so that the plurality of heating elements 13 can be arranged in parallel. It should be noted that in the present embodiment, the heating element 13 can be a heating wire.

[0096] Please refer to Figure 8 and Figure 9 In other embodiments, the first electrical connection 14 includes a plurality of first electrical connections 14, each of which is electrically connected to one of the plurality of heating elements 13; the second electrical connection 15 includes a plurality of second electrical connections 15, each of which is electrically connected to one of the plurality of heating elements 13, so that the plurality of heating elements 13 can be arranged in parallel. It should be noted that in the present embodiment, the heating element 13 can be a heating net.

[0097] Please refer to Figure 19 In some embodiments, the base 11 further includes a first dense structure 115, which is connected to the porous structure 111 and located on the opposite side of the porous structure 111 from the loading structure 113.

[0098] Specifically, in some embodiments, the first dense structure 115 is a structure with fewer micropores or even without micropores. The arrangement of the first dense structure 115 can increase the resistance of heat dissipation to the outside, thereby further reducing heat loss, improving the thermal efficiency of the heating body 10, reducing the energy consumption of the aerosol generating device 1000, and prolonging the endurance time of the aerosol generating device 1000. In addition, the arrangement of the first dense structure 115 can also play a role in strength support, thereby reducing the possibility of deformation and damage of the base body 11 and ensuring the stability and reliability of the working of the heating body 10. It should be noted that in the present embodiment, the plurality of micropores 1111 in the porous structure 111 includes interconnected communication holes.

[0099] In some embodiments, the first dense structure 115 and the porous structure 111 can be combined together by a detachable connection mode or a non-detachable connection mode. The detachable connection mode includes but is not limited to bolt connection or buckle connection, etc.; and the non-detachable connection mode includes but is not limited to bonding or welding, etc.

[0100] In some embodiments, the base body 11 further includes a second dense structure 117, which is connected to the heating surface 1133 and located between the aerosol generating substrate and the heating surface 1133.

[0101] Specifically, in some embodiments, the second dense structure 117 is a structure with fewer micropores or even without micropores; and the thermal conductivity of the second dense structure 117 is greater than or equal to that of the loading structure 113. The arrangement of the second dense structure 117 can make the heating temperature of the aerosol generating substrate more uniform, thereby on the one hand, the aerosol generating substrate can be uniformly atomized, and the taste consistency is good; on the other hand, it can avoid the uneven heating of different regions of the aerosol generating substrate to cause the generated aerosol to have a burnt taste, and improve the user's smoking experience. In addition, the arrangement of the second dense structure 117 can also play a role in strength support, thereby reducing the possibility of deformation and damage of the base body 11 and ensuring the stability and reliability of the working of the heating body 10. It can be understood that in some embodiments, the heating element 13 can also be arranged on the side of the second dense structure 117 opposite to the loading structure 113.

[0102] In some embodiments, the second dense structure 117 and the loading structure 113 can be combined together by a detachable connection mode or a non-detachable connection mode. The detachable connection mode includes but is not limited to bolt connection or buckle connection, etc.; and the non-detachable connection mode includes but is not limited to bonding or welding, etc.

[0103] In some embodiments, the thermal conductivity of the porous structure 111 is less than that of the loading structure 113, so as to reduce heat loss, concentrate the heat generated by the heating element 13 on the heating surface 1133 to heat the aerosol generating substrate, and thus improve the thermal efficiency of the heating element 13, reduce the energy consumption of the aerosol generating device 1000, and prolong the endurance time of the aerosol generating device 1000. In addition, the high thermal conductivity of the loading structure 113 can also improve the uniformity of the temperature of the heating surface 1133, ensure uniform heating of the aerosol generating substrate, ensure good consistency of the taste when the user smokes, and provide a better user experience.

[0104] In some embodiments, the heating element 10 further comprises a glaze layer arranged on the surface of the substrate 11.

[0105] Specifically, in some embodiments, in the direction from the connecting surface 1131 to the heating surface 1133, the substrate 11 comprises a first side and a second side opposite to each other, and the glaze layer can be arranged on the first side of the substrate 11 and / or the second side of the substrate 11. The arrangement of the glaze layer can improve the high-temperature stability and anti-peeling property of the substrate 11, thereby improving the stability and reliability of the heating element 10. It should be noted that in some embodiments, the glaze layer can be formed on the surface of the substrate 11 by high-temperature sintering through immersion coating or screen printing; and the material of the glaze layer can include SiO2 and other oxides.

[0106] Please refer to Figures 2-4 , Figures 5-7 , Figures 8-9 , Figures 10-11 , Figure 18 , or Figure 19 In some embodiments, the substrate 11 is a tubular structure. That is, the substrate 11 can be a hollow columnar structure. In this case, the cross-sectional shape of the porous structure 111 and the loading structure 113 can both be annular. It can be understood that the porous structure 111 is an outer layer structure of the substrate 11, and the loading structure 113 is an inner layer structure of the substrate 11, so that the heating surface 1133 can be in contact with the aerosol generating substrate in the hollow cavity.

[0107] In some embodiments, the thermal conductivity of the porous structure 111 is less than that of the loading structure 113, so as to reduce heat loss, concentrate the heat generated by the heating element 13 on the heating surface 1133 to heat the aerosol generating substrate, and thus improve the thermal efficiency of the heating element 13, reduce the energy consumption of the aerosol generating device 1000, and prolong the endurance time of the aerosol generating device 1000. In addition, the high thermal conductivity of the loading structure 113 can also improve the uniformity of the temperature of the heating surface 1133, ensure uniform heating of the aerosol generating substrate, ensure good consistency of the taste when the user smokes, and provide a better user experience.

[0108] In some embodiments, the thermal conductivity of the porous structure 111 is greater than the thermal conductivity of the loading structure 113. In this case, the heat-generating element 13 is arranged on the heating surface 1133. Thus, the heat generated by the heat-generating element 13 is difficult to conduct to the outside through the loading structure 113 and the porous structure 111, thereby further reducing heat loss, concentrating the heat generated by the heat-generating element 13 on the heating surface 1133 to heat the aerosol generating substrate, and further improving the thermal efficiency of the heat-generating element 13, reducing the energy consumption of the aerosol generating device 1000, and prolonging the endurance time of the aerosol generating device 1000.

[0109] Please refer to Figure 10 and Figure 11 In some embodiments, the base 11 includes opposite first and second ends 101 and 103 in the axial direction of the base 11. The heat-generating body 10 further includes a first connecting member 16 arranged at the first end 101 of the base 11. The thermal conductivity of the first connecting member 16 is less than the thermal conductivity of the loading structure 113.

[0110] Specifically, please refer to Figure 1 In some embodiments, the first connecting member 16 is used to connect the base 11 and an external structure (e.g., the housing 500 or other structural members in the housing 500). The thermal conductivity of the first connecting member 16 is less than the thermal conductivity of the loading structure 113. Thus, the arrangement of the first connecting member 16 can achieve thermal insulation between the first end 101 of the base 11 and the external structure, preventing heat transfer to the external structure, thereby reducing heat dissipation, improving the thermal efficiency of the heat-generating element 13, reducing the energy consumption of the aerosol generating device 1000, and concentrating the temperature, improving the heating effect of the heat-generating element 13 on the aerosol generating substrate, and ensuring the smoking taste of the user.

[0111] In some embodiments, the first connecting member 16 and the base 11 are an integral structure, i.e., the first connecting member 16 and the base 11 are an integral structure made by an integral molding process. Thus, the bonding strength of the first connecting member 16 and the base 11 can be improved, preventing the first connecting member 16 and the base 11 from separating during the operation of the heat-generating body 10, and improving the stability and reliability of the heat-generating body 10. In other embodiments, the first connecting member 16 and the base 11 are separate structures, i.e., the first connecting member 16 and the base 11 are two different structures. The connecting surface 1131 between the first connecting member 16 and the base 11 can be combined together by a detachable connection method or a non-detachable connection method. The detachable connection method includes, but is not limited to, bolt connection or buckle connection, etc. The non-detachable connection method includes, but is not limited to, adhesion or welding, etc.

[0112] In some embodiments, the substrate 11 includes a first end 101 and a second end 103 in the axial direction of the substrate 11; the heating body 10 further includes a second connecting member 17, the second connecting member 17 is arranged at the second end 103 of the substrate 11, and the thermal conductivity of the second connecting member 17 is less than that of the loading structure 113.

[0113] Specifically, in some embodiments, the second connecting member 17 is used to connect the substrate 11 and an external structure (for example, the shell 500 or other structural members in the shell 500). In this case, the thermal conductivity of the second connecting member 17 is less than that of the loading structure 113, so that the arrangement of the second connecting member 17 can achieve thermal insulation between the second end 103 of the substrate 11 and the external structure, prevent heat from being transferred to the external structure, thereby on the one hand, the heat dissipation can be reduced, the thermal efficiency of the heating element 13 can be improved, and the energy consumption of the aerosol generating device 1000 can be reduced; on the other hand, the temperature can be more concentrated, the heating effect of the heating element 13 on the aerosol generating substrate can be improved, and the smoking taste of the user can be ensured.

[0114] In some embodiments, the second connecting member 17 and the substrate 11 are an integral structure, that is, the second connecting member 17 and the substrate 11 are an integral structure made by an integral molding process, so that the bonding strength of the second connecting member 17 and the substrate 11 can be improved, the separation of the second connecting member 17 and the substrate 11 during the operation of the heating body 10 can be prevented, and the stability and reliability of the operation of the heating body 10 can be improved. In other embodiments, the second connecting member 17 and the substrate 11 are a split structure, that is, the second connecting member 17 and the substrate 11 are two different structures. In this case, the second connecting member 17 and the substrate 11 can be combined together by a detachable connection mode or a non-detachable connection mode. The detachable connection mode includes but is not limited to bolt connection or buckle connection, etc.; the non-detachable connection mode includes but is not limited to bonding or welding, etc.

[0115] Please refer to Figure 12 and Figure 13 , Figure 14 and Figure 15 , or Figure 16 and Figure 17 , in some embodiments, the substrate 11 is a flat plate structure. That is, the substrate 11 can be a plate structure with a certain thickness and area. In this case, the porous structure 111 and the loading structure 113 are stacked. For example, the cross-sectional shape of the porous structure 111 and the loading structure 113 can be square.

[0116] In some embodiments, the thermal conductivity of the porous structure 111 is less than that of the loading structure 113, so as to reduce heat loss, concentrate the heat generated by the heating element 13 on the heating surface 1133 to heat the aerosol generating substrate, and thus improve the thermal efficiency of the heating element 13, reduce the energy consumption of the aerosol generating device 1000, and prolong the endurance time of the aerosol generating device 1000. In other embodiments, the thermal conductivity of the porous structure 111 is substantially the same as that of the loading structure 113, and in this case, the aerosol generating substrate does not contact the heating surface 1133.

[0117] Please refer to Figure 12 and Figure 13 In some embodiments, the heating body 10 further comprises a storage member 19, which is arranged on the heating surface 1133 and is used to store the aerosol generating substrate. The storage member 19 is a porous loose structure. It should be noted that, in some embodiments, the aerosol generating substrate stored in the storage member 19 can be a liquid substrate or a paste substrate.

[0118] Specifically, in some embodiments, when the aerosol generating device 1000( Figure 1 ) is smoked, the heat generated by the heating element 13 can be conducted to the storage member 19 to heat the aerosol generating substrate in the storage member 19, so as to generate aerosol for the user to smoke. For example, the storage member 19 can be a porous ceramic, and the micropores in the porous ceramic can store and conduct the aerosol generating substrate under the action of capillary force. The porous ceramic is usually prepared by mixing ceramic slurry with a pore former and then sintering. The sintered ceramic body has a large number of micropores.

[0119] It can be understood that the technical features described above can be combined with each other to form various embodiments of the heating body 10. Some possible embodiments of the present application are described below:

[0120] Embodiment One

[0121] Please refer to Figure 18 (a), the heating body 10 of the present embodiment is a tubular structure, which comprises a porous structure 111 and a loading structure 113. The loading structure 113 is a dense structure. The heating element 13 is arranged between the connecting surface 1131 and the heating surface 1133.

[0122] By using the technical solution in the present embodiment, the heat generated by the heating element 13 is blocked by the porous structure 111 and is difficult to dissipate to the outside, reducing heat dissipation, so that the heat generated by the heating element 13 can act more on the aerosol generating substrate, thereby improving the thermal efficiency of the heating element 13, reducing the energy consumption of the aerosol generating device 1000( Figure 1The energy consumption of the aerosol generating device 1000 can be reduced, and the endurance of the aerosol generating device 1000 can be prolonged.

[0123] Embodiment Two

[0124] Referring to Figure 18 (b), the heating body 10 of the present embodiment is in a tubular structure, and the heating body 10 comprises a porous structure 111 and a loading structure 113, and the loading structure 113 is a porous loose structure. The thermal conductivity of the porous structure 111 is less than that of the loading structure 113; the porosity of the loading structure 113 is less than that of the porous structure 111; and the heating element 13 is arranged between the connecting surface 1131 and the heating surface 1133.

[0125] By using the technical solution in the present embodiment, the heat generated by the heating element 13 is blocked by the porous structure 111 and is difficult to dissipate to the outside, the heat dissipation is reduced, the heat generated by the heating element 13 can act on the aerosol generating substrate more, and thus the thermal efficiency of the heating element 13 can be improved, the energy consumption of the aerosol generating device 1000 (as shown in the figure) can be reduced, and the endurance of the aerosol generating device 1000 can be prolonged. Figure 1 In addition, in the case that the loading structure 113 is a porous loose structure and the heating element 13 is arranged on the heating surface 1133, the loading structure 113 can also play a heat insulation role, so as to further reduce the heat loss, improve the thermal efficiency of the heating element 13, reduce the energy consumption of the aerosol generating device 1000, and prolong the endurance of the aerosol generating device 1000.

[0126] Embodiment Three

[0127] Referring to Figure 19 (a), the heating body 10 of the present embodiment is in a tubular structure, and the heating body 10 comprises a porous structure 111, a loading structure 113, a first dense structure 115, and a second dense structure 117, and the loading structure 113 is a porous loose structure. The porosity of the loading structure 113 is less than that of the porous structure 111; the heating element 13 is arranged between the connecting surface 1131 and the heating surface 1133, and the heating element 13 can also be arranged on the side of the second dense structure 117 opposite to the loading structure 113.

[0128] By using the technical solution in the present embodiment, the heat generated by the heating element 13 is blocked by the porous structure 111 and is difficult to dissipate to the outside, the heat dissipation is reduced, the heat generated by the heating element 13 can act on the aerosol generating substrate more, and thus the thermal efficiency of the heating element 13 can be improved, the energy consumption of the aerosol generating device 1000 (as shown in the figure) can be reduced, and the endurance of the aerosol generating device 1000 can be prolonged. Figure 1

[0129] ​Furthermore, the first dense structure 115 increases the resistance to heat dissipation to the outside. That is, while the heat generated by the heating element 13 is dissipated to the outside through the porous structure 111, the heat still needs to pass through the first dense structure 115, thereby further reducing heat loss, improving the thermal efficiency of the heating element 10, reducing the energy consumption of the aerosol generating device 1000, and extending the battery life of the aerosol generating device 1000. The second dense structure 117 enables more uniform heating of the aerosol generating matrix. This allows the aerosol generating matrix to be uniformly atomized, resulting in a better consistency in taste; it also prevents uneven heating of different areas of the aerosol generating matrix, which could lead to a burnt taste in the generated aerosol, thus improving the user's vaping experience.

[0130] Implementation Method 4

[0131] Please see Figure 19 (b) The heating element 10 in this embodiment is a tubular structure. The heating element 10 includes a porous structure 111, a loading structure 113, a first dense structure 115 and a second dense structure 117. The loading structure 113 is a dense structure. The thermal conductivity of the porous structure 111 is less than that of the loading structure 113. The heating element 13 is disposed between the connecting surface 1131 and the heating surface 1133. The heating element 13 may also be disposed on the side of the second dense structure 117 opposite to the loading structure 113.

[0132] Using the technical solution in this embodiment, the heat generated by the heating element 13 is blocked by the porous structure 111 and is difficult to dissipate to the outside, reducing heat dissipation. This allows the heat generated by the heating element 13 to act more on the aerosol generating matrix, thereby improving the thermal efficiency of the heating element 13 and reducing the aerosol generating device 1000 ( Figure 1 The energy consumption (as shown) is reduced, extending the runtime of the aerosol generating device 1000. It is understood that the structure and function of the first dense structure 115 and the second dense structure 117 in this embodiment are basically the same as those in Embodiment 3. Please refer to the above description for details, which will not be repeated here.

[0133] Implementation Method 5

[0134] Please see Figure 19 (c) In this embodiment, the heating element 10 has a tubular structure and includes a porous structure 111, a loading structure 113, a first dense structure 115, and a second dense structure 117. The loading structure 113 has a porous and loose structure. The porosity of the loading structure 113 is approximately the same as that of the porous structure 111. The heating element 13 is disposed between the connecting surface 1131 and the heating surface 1133. The heating element 13 may also be disposed on the side of the second dense structure 117 opposite to the loading structure 113.

[0135] With the technical solution in the embodiment, the heat generated by the heating element 13 is blocked by the porous structure 111 and is difficult to dissipate to the outside, reducing heat dissipation, so that the heat generated by the heating element 13 can act more on the aerosol generating substrate, thereby improving the thermal efficiency of the heating element 13, reducing the energy consumption of the aerosol generating device 1000 (as shown in the figure), and prolonging the endurance time of the aerosol generating device 1000. Figure 1 The heating element 13 is arranged on the heating surface 1133 of the loading structure 113, and the loading structure 113 is a porous loose structure. In this way, the loading structure 113 can also play a heat insulation role, thereby further reducing heat loss, improving the thermal efficiency of the heating element 13, reducing the energy consumption of the aerosol generating device 1000, and prolonging the endurance time of the aerosol generating device 1000.

[0136] In addition, in the case where the loading structure 113 is a porous loose structure and the heating element 13 is arranged on the heating surface 1133, the loading structure 113 can also play a heat insulation role, thereby further reducing heat loss, improving the thermal efficiency of the heating element 13, reducing the energy consumption of the aerosol generating device 1000, and prolonging the endurance time of the aerosol generating device 1000. It can be understood that the structure and function of the first dense structure 115 and the second dense structure 117 in the embodiment are basically the same as those of the first dense structure 115 and the second dense structure 117 in Embodiment Three, and specific details are described above and will not be repeated here.

[0137] It can be understood that the heating body 10 in Embodiments Three, Four and Five can not be provided with the second dense structure 117, that is, the heating body 10 in Embodiments Three, Four and Five only includes the porous structure 111, the loading structure 113 and the first dense structure 115.

[0138] Embodiment Six

[0139] Please refer to Figure 12 and Figure 13 The heating body 10 in the embodiment is a flat plate structure, and the heating body 10 includes a porous structure 111, a loading structure 113 and a storage element 19. The porous structure 111 and the storage element 19 are arranged on opposite sides of the loading structure 113, and the heating element 13 is arranged between the loading structure 113 and the storage element 19. The loading structure 113 is a dense structure. In the embodiment, the aerosol generating substrate stored in the storage element 19 can be a liquid substrate or a paste substrate.

[0140] With the technical solution in the embodiment, the heat generated by the heating element 13 is blocked by the porous structure 111 and is difficult to dissipate to the outside, reducing heat dissipation, so that the heat generated by the heating element 13 can act more on the aerosol generating substrate, thereby improving the thermal efficiency of the heating element 13, reducing the energy consumption of the aerosol generating device 1000 (as shown in the figure), and prolonging the endurance time of the aerosol generating device 1000. Figure 1

[0141] Embodiment Seven ​

[0142] Please refer to Figure 14 and Figure 15 In the embodiment, the heating body 10 is in a flat plate structure, the heating body 10 comprises a porous structure 111 and a loading structure 113, and the heating element 13 is arranged between the loading structure 113 and the porous structure 111 (i.e. the heating element 13 is arranged on the connecting surface 1131). The loading structure 113 is a dense structure.

[0143] By using the technical solution in the embodiment, the heat generated by the heating element 13 is difficult to dissipate to the outside due to the blocking of the porous structure 111, heat dissipation is reduced, the heat generated by the heating element 13 can act on the aerosol generating substrate more, the thermal efficiency of the heating element 13 is improved, the energy consumption of the aerosol generating device 1000 (shown in Figure 1 ) is reduced, and the endurance time of the aerosol generating device 1000 is prolonged.

[0144] Eighth Embodiment

[0145] Please refer to Figure 16 and Figure 17 In the embodiment, the heating body 10 is in a flat plate structure, the heating body 10 comprises a porous structure 111 and a loading structure 113, and the heating element 13 is arranged on the side of the loading structure 113 opposite to the porous structure 111 (i.e. the heating element 13 is arranged on the heating surface 1133). The loading structure 113 is a dense structure. In the embodiment, the heating body 10 can heat and atomize the solid or paste substrate.

[0146] By using the technical solution in the embodiment, the heat generated by the heating element 13 is difficult to dissipate to the outside due to the blocking of the porous structure 111, heat dissipation is reduced, the heat generated by the heating element 13 can act on the aerosol generating substrate more, the thermal efficiency of the heating element 13 is improved, the energy consumption of the aerosol generating device 1000 (shown in Figure 1 ) is reduced, and the endurance time of the aerosol generating device 1000 is prolonged.

[0147] It can be understood that the above embodiments are only examples for clearly illustrating the embodiments, and are not limitations on the embodiments. Based on the above description, other different forms of changes or modifications can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or modifications derived therefrom are still within the protection scope of the present application.

[0148] Any technical features in the above-described embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations are described, however, as long as there is no conflict in combining the technical features, it should be considered that the combination of the technical features is within the scope of the present disclosure. Meanwhile, other embodiments can be derived from the above-described embodiments, so that structural and logical substitutions and changes can be made without departing from the scope of the present disclosure.

[0149] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A heating element, characterized in that, include: The matrix includes a porous structure and a loading structure. The porous structure has multiple micropores, and the loading structure includes a connecting surface and a heating surface. The connecting surface is used to connect with the porous structure, and the heating surface is used to contact the aerosol generation matrix. and A heating element is disposed on the connecting surface or the heating surface, and the heating element is used to heat the aerosol generating matrix to generate aerosol.

2. The heating element according to claim 1, characterized in that, The plurality of micropores include closed pores that are not interconnected; or, The plurality of micropores include interconnected vias.

3. The heating element according to claim 1, characterized in that, The porous structure is made of at least one of metal, ceramic, and glass; and / or, In the direction from the connecting surface to the heating surface, the size of the porous structure is 0.1mm-5.0mm.

4. The heating element according to claim 1, characterized in that, The loading structure is a porous and loose structure, and the porosity of the loading structure is less than the porosity of the porous structure; or... The loading structure is a dense structure.

5. The heating element according to claim 1, characterized in that, The matrix also includes: The first dense structure is connected to the porous structure and is located on opposite sides of the loading structure.

6. The heating element according to claim 5, characterized in that, The matrix also includes: A second dense structure is connected to the heating surface and located between the aerosol generating matrix and the heating surface.

7. The heating element according to claim 1, characterized in that, The thermal conductivity of the porous structure is less than that of the loading structure; and / or, the heating element further includes a glaze layer disposed on the surface of the substrate.

8. The heating element according to any one of claims 1-7, characterized in that, The substrate is a tubular structure, and in the axial direction of the substrate, the substrate includes a first end and a second end opposite to each other; the heating element also includes a first connector, which is disposed at the first end of the substrate, and the thermal conductivity of the first connector is less than that of the loading structure.

9. The heating element according to claim 8, characterized in that, Along the axial direction of the substrate, the substrate includes a first end and a second end opposite to each other; the heating element further includes a second connector disposed at the second end of the substrate, the thermal conductivity of the second connector being less than the thermal conductivity of the loading structure.

10. The heating element according to any one of claims 1-7, characterized in that, The substrate has a flat plate structure, and the heating element also includes a storage device. The storage device is disposed on the heating surface and is used to store the aerosol generation matrix. The storage device has a porous and loose structure.

11. An atomizer, characterized in that, include: The heating element according to any one of claims 1-10.

12. An aerosol generating device, characterized in that, include: Electronic control components; and The atomizer of claim 11, wherein the atomizer is electrically connected to the electronic control assembly.

Images