Heating element, nebulizer, and aerosol-generating device

Abstract

The utility model discloses a heating body, an atomizer and an aerosol generating device. The heating body comprises a base body and a heating piece. The base body further comprises an atomizing part and a loading part located on at least one side of the atomizing part, the atomizing part comprises an atomizing face and a liquid guiding channel, the liquid guiding channel is used for allowing aerosol generating matrixes to circulate, the loading part comprises a loading face, and the loading face and the atomizing face are located on the same side of the base body. The heating part comprises a heating part and a conductive part, the heating part is connected to the atomizing surface and used for heating the aerosol generating substrate by being electrified, and the conductive part is connected to the loading surface, electrically connected with the heating part and used for conducting current to the heating part. Compared with a substrate with a uniform overall structure, the aerosol generating substrate has the advantages that incomplete atomization caused by heating the aerosol generating substrate by the conductive part is avoided, so that equal-ratio evaporation of the aerosol generating substrate can be ensured, the components of the aerosol generating substrate are relatively consistent, the chemical reduction degree of the generated aerosol is improved, and the aerosol generating effect is improved. And the smoking taste of the user is ensured.

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 act on an aerosol generating substrate by using a heating technology and generate an aerosol. There are mainly two types of devices for atomizing solid and liquid substrates. In the related art, the atomizer in the aerosol generating device for the liquid substrate includes a heating element, and the heating element includes a base and a heating piece. The heating piece is arranged on one side of the base and can heat the aerosol generating substrate in the base to generate an aerosol. The heating piece usually includes a heating part and a conductive part. Because the heat generated by the heating part and the conductive part is inconsistent, in the process of heating the aerosol generating substrate in the base by the heating piece, the aerosol generating substrate is prone to uneven evaporation. The composition of the aerosol generating substrate tends to be inconsistent, which gradually deepens, thereby gradually deteriorating the chemical reduction degree of the generated aerosol, and affecting the smoking taste of the user. SUMMARY

[0003] The embodiments of the present application provide a heating element, an atomizer and an aerosol generating device.

[0004] The heating element of the embodiments of the present application includes a base and a heating piece. The base includes an atomization part and a loading part located on at least one side of the atomization part. The atomization part includes an atomization surface and a liquid guide passage for the flow of the aerosol generating substrate. The loading part includes a loading surface, and the loading surface and the atomization surface are located on the same side of the base. The heating piece includes a heating part and a conductive part. The heating part is connected to the atomization surface and is used for heating by electricity to heat the aerosol generating substrate. The conductive part is connected to the loading surface and is electrically connected to the heating part. The conductive part is used for conducting current to the heating part.

[0005] In some embodiments, the base includes a mounting surface, and the mounting surface includes the atomization surface and the loading surface. The heating element further includes a separation piece arranged at the connection between the atomization surface and the loading surface and protruding away from the mounting surface. The separation piece is used to block the flow of the aerosol generating substrate to the loading part.

[0006] In some embodiments, the mounting surface is a plane. In a direction perpendicular to the mounting surface, the height of the protrusion of the separation piece relative to the mounting surface is greater than the height of the protrusion of the conductive part relative to the mounting surface. And / or, the height of the protrusion of the separation piece relative to the mounting surface is less than 150 μm.

[0007] In some embodiments, the base body comprises a mounting surface, the mounting surface comprises the atomization surface and the loading surface; the distance between the loading surface and the center of the base body is greater than the distance between the atomization surface and the center of the base body in the direction perpendicular to the mounting surface.

[0008] In some embodiments, the loading surface is arranged obliquely relative to the atomization surface.

[0009] In some embodiments, the loading surface and the atomization surface are formed as a continuous curved surface.

[0010] In some embodiments, the slope between the loading surface and the atomization surface is less than 2°.

[0011] In some embodiments, the loading surface is parallel to the atomization surface, and the connection between the loading surface and the atomization surface is a bevel.

[0012] In some embodiments, the loading surface is parallel to the atomization surface, and the connection between the loading surface and the atomization surface is a curved surface.

[0013] In some embodiments, the loading portion is a dense structure, and the loading portion is not provided with the liquid guide passage. The atomization portion is a porous structure, and the liquid guide passage comprises micropores in the porous structure.

[0014] In some embodiments, the loading portion is a dense structure, and the loading portion is not provided with the liquid guide passage. The atomization portion is provided with a plurality of through holes, and the liquid guide passage comprises the plurality of through holes.

[0015] In some embodiments, the loading portion is a dense structure, and the loading portion is not provided with the liquid guide passage. The atomization portion is a porous structure, and the liquid guide passage comprises micropores in the porous structure. The atomization portion is provided with a plurality of through holes, and the liquid guide passage comprises the plurality of through holes.

[0016] The atomizer of the embodiments of the present application comprises the heating body in any of the above embodiments.

[0017] The aerosol generating device of the embodiments of the present application comprises a power supply and the atomizer in the above embodiments, and the power supply is electrically connected to the atomizer.

[0018] In the heating element, the atomization part, the aerosol generating device and the like of the embodiments of the present application, the atomization part includes an atomization surface and a liquid guide passage for the flow of the aerosol generating substrate, the heating part is connected to the atomization surface, and the conductive part is connected to the loading surface. Thus, when the heating element is powered and heated, only the heating part heats the aerosol generating substrate to generate aerosol. Compared with a substrate with a uniform overall structure, the conductive part does not heat the aerosol generating substrate to cause incomplete atomization, thereby ensuring the isometric evaporation of the aerosol generating substrate, making the components of the aerosol generating substrate more consistent, and further improving the chemical reduction degree of the generated aerosol to ensure the smoking taste of the user.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0021] Figure 1 is a structural schematic diagram of an aerosol generating device according to some embodiments of the present application;

[0022] Figure 2 is a three-dimensional structural schematic diagram of a heating element according to some embodiments of the present application;

[0023] Figure 3 is a three-dimensional structural schematic diagram of a heating element according to some embodiments of the present application; Figure 2

[0024] Figure 4 is a three-dimensional structural schematic diagram of a heating element according to some embodiments of the present application;

[0025] Figure 5 is a three-dimensional structural schematic diagram of a heating element according to some embodiments of the present application; Figure 4

[0026] Figure 6 is a three-dimensional structural schematic diagram of a heating element according to some embodiments of the present application;

[0027] Figure 7 is a three-dimensional structural schematic diagram of a heating element according to some embodiments of the present application.

[0028] Explanation of main element symbols:

[0029] 1000 aerosol generating device;

[0030] 100 atomizer; 200 power supply;

[0031] 10 heating element; 20 mounting member;​​

[0032] 11 base; 101 mounting surface; 111 atomizing portion; 1111 atomizing surface; 1113 liquid guide passage; 113 loading portion; 1131 loading surface; 13 heating member; 131 heating portion; 133 conductive portion; 15 spacer. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "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.

[0035] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an 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.

[0037] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "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 similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0039] The aerosol-generating device is a small device that can act on an aerosol-generating substrate using a heating technology and generate an aerosol, mainly including two types of devices for atomizing solid and liquid substrates. In the related art, the atomizer in the aerosol-generating device for the liquid substrate includes a heating body, the heating body includes a base and a heating piece, the heating piece is arranged on one side of the base, and can heat the aerosol-generating substrate in the base to generate an aerosol. The heating piece usually includes a heating part and a conductive part. Since the heat generated by the heating part and the conductive part is inconsistent, during the process that the heating piece heats the aerosol-generating substrate in the base, the aerosol-generating substrate is prone to uneven evaporation. The composition of the aerosol-generating substrate tends to deepen the degree of inconsistency, the chemical reduction degree of the generated aerosol is poor, and the smoking taste of the user is affected. To solve this problem, please refer to Figure 1 and Figure 2 The present application provides a heating body 10, an atomizer 100 and an aerosol-generating device 1000.

[0040] Please refer to Figure 1 The aerosol-generating device 1000 provided by the embodiments of the present application includes a power supply 200 and an atomizer 100, and the power supply 200 is electrically connected with the atomizer 100. Specifically, in the case that the power of the power supply 200 is transmitted to the atomizer 100, the atomizer 100 can heat and atomize the aerosol-generating substrate to generate an aerosol.

[0041] It should be noted 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 in a full solid state or a semi-solid state. For example, in the case of the aerosol-generating substrate being 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 and formed by processes such as rolling, thick paste, die casting, extrusion, etc. In some embodiments of the present application, the aerosol-generating substrate can be in a liquid state. 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.

[0042] In the present embodiment, the aerosol-generating device 1000 includes the atomizer 100, and 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.

[0043] Referring to Figure 1 and Figure 2 The atomizer 100 provided in the present embodiment includes the heating element 10.

[0044] Specifically, in some embodiments, the atomizer 100 can further include a mounting member 20, and the heating element 10 is disposed on the mounting member 20 and forms an atomization cavity together with the mounting member 20. In the extension direction Y of the aerosol-generating device 1000, the mounting member 20 is provided with an inlet and an outlet. In the case that the heating element 10 is powered and external gas enters the atomization cavity from the inlet, the aerosol-generating substrate generates aerosol, and the aerosol can flow out of the atomization cavity through the outlet to be inhaled by a user.

[0045] In the present embodiment, the atomizer 100 includes the heating element 10, and it can be understood that the atomizer 100 at least includes the same beneficial effects as the heating element 10. Therefore, the beneficial effects of the atomizer 100 are described below in the beneficial effects of the heating element 10.

[0046] Referring to Figure 2The heating body 10 provided by the embodiments of the present application comprises a base body 11 and a heating element 13. The base body 11 comprises an atomization part 111 and a loading part 113 located at least one side of the atomization part 111. The atomization part 111 comprises an atomization surface 1111 and a liquid guiding passage 1113 for the flow of the aerosol generating substrate. The loading part 113 comprises a loading surface 1131, which is located on the same side of the atomization surface 1111 of the base body 11. The heating element 13 comprises a heating part 131 and a conductive part 133. The heating part 131 is connected to the atomization surface 1111 and is used for heating the aerosol generating substrate by being electrified. The conductive part 133 is connected to the loading surface 1131 and is electrically connected to the heating part 131. The conductive part 133 is used for conducting the current to the heating part 131. It can be understood that the conductive part 133 can be connected to the power supply 200 (as shown in the figure) through an electrical connector. In this way, the conductive part 133 can conduct the current of the power supply 200 to the heating part 131, so that the heating part 131 is electrified to heat the aerosol generating substrate. Figure 1

[0047] The base body 11 is a structure for loading the heating element 13 and other elements in the heating body 10. The material of the base body 11 includes but is not limited to glass, ceramic, metal and the like. It can be understood that the base body 11 can be processed and manufactured by flow casting, dry pressing, injection molding and the like.

[0048] The cross-sectional shape of the liquid guiding passage 1113 can be a regular shape such as a square, a circle, a triangle or an irregular shape, which is not limited herein. The liquid guiding passage 1113 can flow the aerosol generating substrate inside the atomization part 111 and flow to the area (atomization surface 1111) that can be heated by the heating element 13 through the liquid guiding passage 1113, so that the aerosol generating substrate is heated to generate aerosol.

[0049] In some embodiments, the atomization part 111 is a porous structure, and the liquid guiding passage 1113 comprises micropores in the porous structure. For example, the porous structure can be a porous ceramic, a porous diatomite material or a porous quartz glass body, etc. 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. The micropores in the porous ceramic can be disordered pores. In this embodiment, the micropores can be used as the liquid guiding passage 1113 of the aerosol generating substrate in the atomization part 111, and the micropores are interconnected, so as to store the aerosol generating substrate to a certain extent and conduct the aerosol generating substrate.

[0050] ​In some embodiments, the atomization portion 111 is provided with a plurality of through holes, and the liquid guide passage 1113 comprises the plurality of through holes. In this embodiment, the liquid guide passage 1113 is an artificial passage. For example, during the manufacturing of the base body 11, or after the manufacturing of the base body 11, the user can punch holes in the atomization portion 111 to form the through holes, and the plurality of through holes collectively form the liquid guide passage 1113. The punching method includes, but is not limited to, laser drilling and mechanical drilling.

[0051] In some embodiments, the loading portion 113 is a dense structure, and the loading portion 113 is not provided with the liquid guide passage 1113. For example, the dense structure can be a dense ceramic. The dense ceramic can be made of at least one of aluminum nitride, silicon carbide, aluminum oxide, zirconium oxide, and silicon nitride. In this case, the loading portion 113 is not provided with the liquid guide passage 1113, i.e., the dense ceramic is not provided with the liquid guide passage 1113, so that the aerosol generating substrate cannot or hardly enter the inside of the loading portion 113, thereby reducing the possibility of the aerosol generating substrate contacting the conductive portion 133.

[0052] In addition, since the loading portion 113 is a dense structure, the thermal conductivity of the loading portion 113 is high. In this case, when the heating element 13 is powered on and generates heat (both the heating portion 131 and the conductive portion 133 generate heat), the loading portion 113 can quickly share the heat generated by the conductive portion 133, reduce the temperature rise of the loading portion 113, and prevent the heat generated by the conductive portion 133 from heating and atomizing the aerosol generating substrate, thereby not only improving the consistency of the composition of the aerosol generating substrate and ensuring the chemical reduction degree of the generated aerosol, but also avoiding incomplete atomization of the composition of the aerosol generating substrate and condensation of black carbon on the loading portion 113, i.e., avoiding carbon deposition of organic substances such as sugar on the loading portion, and ensuring the smoking taste of the user. It should be noted that the loading portion 113 includes two loading portions 113, and the two loading portions 113 are respectively arranged on the opposite sides of the atomization portion 111.

[0053] The heating element 13 is a structure of the heating body 10 for heating the aerosol generating substrate. The heating element 13 includes, but is not limited to, a heating line, a heating film, a heating sheet, a heating wire, and a heating mesh. The heating element 13 can be made of at least one of a metal material, a metal alloy, graphite, carbon, a conductive ceramic, tin antimony oxide, other ceramic materials, a composite material of metal materials, and the like. The appropriate metal or alloy material includes at least one of nickel, cobalt, zirconium, titanium, a nickel alloy, a cobalt alloy, a zirconium alloy, a titanium alloy, a nickel-chromium alloy, a nickel-iron alloy, a ferrochrome alloy, a ferrochrome-aluminum alloy, a titanium alloy, an iron-manganese-aluminum-based alloy, or stainless steel.

[0054] It should be noted that, in some embodiments, the heating element 13 may be disposed on the substrate 11 by at least one of the following processes: thick film printing, thin film sputtering, screen printing, transfer printing, 3D printing, physical vapor deposition (PVD), and chemical vapor deposition (CVD).

[0055] Specifically, in some embodiments, the power supply 200 is transmitted to the conductive part 133. Figure 1 When the current (as shown) is conducted to the heating element 131, the heating element 131 can generate heat to heat the aerosol generating matrix in the atomizing element 111, thereby generating aerosol from the aerosol generating matrix. It is understood that when the conductive element 133 conducts current to the heating element 131, the conductive element 133 can also generate heat. However, since the loading element 113 does not have a liquid guiding passage 1113, there is no aerosol generating matrix in the loading element 113. This prevents the conductive element 133 and the heating element 131 from heating the aerosol generating matrix in the substrate 11 at the same time, which would cause non-uniform evaporation of the aerosol generating matrix, thus ensuring the user's inhalation experience.

[0056] In the heating element 10 of this embodiment, the atomizing part 111 includes an atomizing surface 1111 and a liquid guiding passage 1113. The liquid guiding passage 1113 is used for the flow of the aerosol generating matrix. The heating part 131 is connected to the atomizing surface 1111, and the conductive part 133 is connected to the loading surface 1131. Thus, when the heating element 13 is energized and heats up, only the heating part 131 heats the aerosol generating matrix to generate aerosol. Compared with the substrate 11 with a uniform overall structure, this avoids the conductive part 133 heating the aerosol generating matrix, which would lead to incomplete atomization. This ensures the proportional evaporation of the aerosol generating matrix, making the composition of the aerosol generating matrix more consistent, thereby improving the chemical reduction degree of the generated aerosol and ensuring the user's inhalation experience.

[0057] In addition, the conductive part 133 does not heat and atomize the aerosol generating matrix, which can also prevent the aerosol generating matrix components from being incompletely atomized and condensing on the loading part 113 to form black charred substances. That is, it avoids the incomplete atomization of the aerosol generating matrix components, which would cause organic sugars and other substances to accumulate carbon in the loading part, thereby ensuring the user's inhalation experience.

[0058] The heating element 10 will be further explained below with reference to the accompanying drawings.

[0059] Please see Figure 2 and Figure 3In some embodiments, the base body 11 comprises a mounting surface 101, the mounting surface 101 comprises an atomization surface 1111 and a loading surface 1131, in other words, the atomization surface 1111 and the loading surface 1131 are located on the mounting surface 101. The mounting surface 101 refers to the side surface of the base body 11 connected with the heating element 13, in other words, the heating element 13 can be arranged on the mounting surface 101 by at least one of thick film printing, thin film sputtering, silk printing, transfer printing, 3D printing, PVD and CVD.

[0060] In some embodiments, the heating body 10 further comprises a partition 15, the partition 15 is arranged at the connection between the atomization surface 1111 and the loading surface 1131 and protrudes away from the mounting surface 101, the partition 15 is used to block the flow of the aerosol generating substrate to the loading portion 113. It should be noted that in the present embodiment, the mounting surface 101 is substantially perpendicular to the line connecting the center point of the inlet and the center point of the outlet; or, the mounting surface 101 is substantially parallel to the line connecting the center point of the inlet and the center point of the outlet.

[0061] Specifically, in some embodiments, since the aerosol generating substrate in the liquid guiding passage 1113 can flow to the atomization surface 1111, if the aerosol generating substrate on the atomization surface 1111 is not atomized in time and no partition 15 is arranged between the atomization surface 1111 and the loading surface 1131, the aerosol generating substrate may flow from the atomization surface 1111 to the loading surface 1131, at this time, the conductive portion 133 will also heat and atomize the aerosol generating substrate, thereby causing the composition of the aerosol generating substrate to be inconsistent and the reduction degree of the generated aerosol to be poor. Therefore, the arrangement of the partition 15 can prevent the aerosol generating substrate from flowing to the loading portion 113, avoiding the incomplete atomization of the aerosol generating substrate caused by the heating of the conductive portion 133, thereby ensuring the isometric evaporation of the aerosol generating substrate, the composition of the aerosol generating substrate being more consistent, the reduction degree of the generated aerosol being higher, and the user's smoking taste being improved.

[0062] In some embodiments, the partition 15 and the base body 11 are in a split structure, in other words, the partition 15 and the base body 11 are two different structures. For example, the partition 15 can be an oleophobic partition coating, which can be arranged on the mounting surface 101 of the base body 11 in a coating manner. The oleophobic partition coating is mainly composed of silicate inorganic materials such as silicon oxide, aluminum oxide, zirconium oxide and titanium dioxide.

[0063] In some embodiments, the spacer 15 and the base 11 are an integral structure, i.e., the spacer 15 and the base 11 are formed as an integral structure by integral molding. In this way, the stability of the connection between the spacer 15 and the base 11 can be improved, the possibility of the spacer 15 falling off the base 11 during the operation of the heating element 10 can be reduced, and the flow of the aerosol generating substrate from the atomization surface 1111 to the loading surface 1131 can be effectively prevented.

[0064] In some embodiments, the mounting surface 101 is a flat surface. That is, the atomization surface 1111 and the loading surface 1131 are in the same plane, and the spacer 15 can be a protrusion provided on the plane. In this way, the spacer 15 can block the aerosol generating substrate on the atomization surface 1111 from flowing to the loading surface 1131. In addition, the mounting surface 101 being a flat surface can ensure the flatness of the installation of the heating element 13 on the base 11.

[0065] If the height of the protrusion of the spacer 15 relative to the mounting surface 101 in the direction X perpendicular to the mounting surface 101 is less than the height of the protrusion of the conductive portion 133 relative to the mounting surface 101, the spacer 15 can not effectively block the aerosol generating substrate from flowing to the loading portion 113. In this case, the conductive portion 133 can also heat and atomize the aerosol generating substrate, resulting in inconsistent composition of the aerosol generating substrate and poor reduction of the generated aerosol.

[0066] In some embodiments of the present application, the height of the protrusion of the spacer 15 relative to the mounting surface 101 in the direction X perpendicular to the mounting surface 101 is greater than the height of the protrusion of the conductive portion 133 relative to the mounting surface 101. That is, the thickness of the spacer 15 in the direction X perpendicular to the mounting surface 101 is greater than the thickness of the conductive portion 133. In this way, the spacer 15 can effectively block the aerosol generating substrate from flowing to the loading portion 113, avoiding incomplete atomization of the aerosol generating substrate by the conductive portion 133, thereby ensuring the isometric evaporation of the aerosol generating substrate, more consistent composition of the aerosol generating substrate, higher reduction of the generated aerosol, and improved smoking taste of the user.

[0067] Further, please refer to Figure 1In some embodiments, the height of the isolation member 15 protruding relative to the mounting surface 101 in the direction X perpendicular to the mounting surface 101 is less than 150 μm. That is, the thickness of the isolation member 15 in the direction X perpendicular to the mounting surface 101 is greater than the thickness of the conductive portion 133 and less than 150 μm. In this way, on the one hand, the height of the isolation member 15 protruding relative to the mounting surface 101 is prevented from being too high (i.e., the isolation member 15 is too thick), which can cause interference with structures in the external device, for example, preventing the isolation member 15 from interfering with structures (e.g., electrical connections) in the atomizer 100 during assembly, thereby ensuring proper assembly of the heating body 10 in the external device. On the other hand, the isolation member 15 can effectively block the flow of aerosol generating substrate to the loading portion 113, avoiding incomplete atomization caused by the conductive portion 133 heating the aerosol generating substrate, thereby ensuring isometric evaporation of the aerosol generating substrate, more consistent composition of the aerosol generating substrate, higher reduction of the generated aerosol, and improved user smoking experience.

[0068] In addition, the height of the isolation member 15 protruding relative to the mounting surface 101 in the direction X perpendicular to the mounting surface 101 is less than 150 μm, which can also make the isolation member 15 and the base body 11 appear to be substantially one whole in the visual sense, thereby improving the visual effect of the heating body 10.

[0069] In some embodiments, the preparation steps of the heating body 10 can be as follows: first, an initial base body is made using a molding method such as flow casting, dry pressing, or injection molding; then, a hole is punched in the middle portion of the initial base body using a method such as laser drilling or mechanical drilling to form the base body 11 with the middle portion being the atomization portion 111 and the two side portions being the loading portions 113; then, the heating member 13 is prepared on the base body 11; and finally, the isolation member 15 is prepared on the base body 11 and located at the connection between the atomization portion 111 and the loading portions 113, thereby completing the preparation of the heating body 10.

[0070] It can be understood that the preparation steps and methods of the heating body 10 in the above embodiments are only exemplary and that the preparation steps and methods of the heating body 10 can also be in other forms in other embodiments, which are not exemplified one by one here.

[0071] Please refer to Figure 4 or Figure 6 in combination with Figure 5In some embodiments, the distance between the loading surface 1131 and the center of the base 11 in the direction X perpendicular to the mounting surface 101 is greater than the distance between the atomization surface 1111 and the center of the base 11. Thus, in the direction X perpendicular to the mounting surface 101, the atomization surface 1111 and the loading surface 1131 have a certain height difference, so that the aerosol generating substrate on the atomization surface 1111 is difficult to flow to the loading surface 1131, and thus the conductive part 133 cannot heat and atomize the aerosol generating substrate, ensuring the consistency of the composition of the aerosol generating substrate and improving the reduction degree of the generated aerosol. It should be noted that in the present embodiment, the mounting surface 101 is substantially parallel to the line between the center point of the inlet and the center point of the outlet, so as to shorten the flow path of the aerosol and improve the air outlet efficiency of the atomizer 100.

[0072] Specifically, please refer to Figure 4 and Figure 5 In some embodiments, the loading surface 1131 is inclined relative to the atomization surface 1111. Specifically, the loading surface 1131 is inclined relative to the atomization surface 1111 away from the center of the base 11 to form an inclined slope, so as to prevent the aerosol generating substrate from flowing to the loading surface 1131 and contacting the conductive part 133, thereby avoiding the conductive part 133 from heating and atomizing the aerosol generating substrate.

[0073] For example, the loading surface 1131 and the atomization surface 1111 are both planes, and the loading surface 1131 is inclined relative to the atomization surface 1111 as a whole. In some embodiments of the present application, the slope between the loading surface 1131 and the atomization surface 1111 is less than 2°. Specifically, in some embodiments, the slope between the loading surface 1131 and the atomization surface 1111 can be any one value or any value between any two values of 0.2°, 0.4°, 0.6°, 0.8°, 1.0°, 1.2°, 1.4°, 1.6°, 1.8° and 2.0°.

[0074] If the slope between the loading surface 1131 and the atomization surface 1111 is greater than 2°, the heating element 13 is prone to deformation when prepared on the base 11, thereby causing the heating element 13 to be difficult to be shaped and affecting the processing efficiency of the heating body 10. In some embodiments of the present application, the slope between the loading surface 1131 and the atomization surface 1111 is less than 2°, so as to prevent the aerosol generating substrate from flowing to the loading surface 1131 and contacting the conductive part 133, thereby avoiding the conductive part 133 from heating and atomizing the aerosol generating substrate, and preventing the heating element 13 from deforming when prepared on the base 11, facilitating the shaping of the heating element 13 and improving the processing efficiency of the heating body 10.

[0075] In some embodiments, the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. In this way, the aerosol generating substrate on the atomization surface 1111 can be prevented from flowing onto the loading surface 1131 and contacting the conductive portion 133, thereby avoiding the conductive portion 133 from heating and atomizing the aerosol generating substrate.

[0076] For example, the loading surface 1131 can be a curved surface, and the atomization surface 1111 can be a flat surface. The atomization surface 1111 is tangent to one end of the loading surface 1131, and the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Alternatively, the loading surface 1131 and the atomization surface 1111 are both curved surfaces, and the tangent lines at the connection between the loading surface 1131 and the atomization surface 1111 are the same. In this way, the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface.

[0077] For example, the loading surface 1131 can be a curved surface, and the atomization surface 1111 can be a flat surface. The atomization surface 1111 is tangent to one end of the loading surface 1131, and the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Alternatively, the loading surface 1131 and the atomization surface 1111 are both curved surfaces, and the tangent lines at the connection between the loading surface 1131 and the atomization surface 1111 are the same. In this way, the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Figure 6 Figure 5 For example, the loading surface 1131 can be a curved surface, and the atomization surface 1111 can be a flat surface. The atomization surface 1111 is tangent to one end of the loading surface 1131, and the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Alternatively, the loading surface 1131 and the atomization surface 1111 are both curved surfaces, and the tangent lines at the connection between the loading surface 1131 and the atomization surface 1111 are the same. In this way, the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface.

[0078] For example, the loading surface 1131 can be a curved surface, and the atomization surface 1111 can be a flat surface. The atomization surface 1111 is tangent to one end of the loading surface 1131, and the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Alternatively, the loading surface 1131 and the atomization surface 1111 are both curved surfaces, and the tangent lines at the connection between the loading surface 1131 and the atomization surface 1111 are the same. In this way, the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Figure 7 Figure 5 For example, the loading surface 1131 can be a curved surface, and the atomization surface 1111 can be a flat surface. The atomization surface 1111 is tangent to one end of the loading surface 1131, and the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface. Alternatively, the loading surface 1131 and the atomization surface 1111 are both curved surfaces, and the tangent lines at the connection between the loading surface 1131 and the atomization surface 1111 are the same. In this way, the loading surface 1131 and the atomization surface 1111 are formed as a continuous curved surface.

[0079] In some embodiments, the preparation steps of the heating body 10 can include the following steps. First, an initial substrate is prepared by dry pressing, injection molding, or other molding methods. Then, a hole is punched in the middle of the initial substrate by laser drilling or mechanical drilling, to form a substrate 11 with an atomization portion 111 in the middle and loading portions 113 on both sides. Finally, a heating element 13 is prepared on the substrate 11, and the preparation of the heating body 10 is completed. Figure 4 、 Figure 6 or Figure 7 In some embodiments, the preparation steps of the heating body 10 can include the following steps. First, an initial substrate is prepared by dry pressing, injection molding, or other molding methods. Then, a hole is punched in the middle of the initial substrate by laser drilling or mechanical drilling, to form a substrate 11 with an atomization portion 111 in the middle and loading portions 113 on both sides. Finally, a heating element 13 is prepared on the substrate 11, and the preparation of the heating body 10 is completed.

[0080] It should be understood that the preparation steps and methods of the heating body 10 in the above embodiments are only exemplary, and in other embodiments, the preparation steps and methods of the heating body 10 can also be in other forms, which are not described one by one here.

[0081] ​​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.

[0082] The above-described embodiments only express several embodiments 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, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which are all 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 heat generating body, characterized by comprising: The heating body comprises: a base body comprising an atomization portion and a loading portion located at least one side of the atomization portion, the atomization portion comprising an atomization surface and a liquid guide passage for the aerosol generating substrate to flow through, and the loading portion comprising a loading surface located on the same side of the base body as the atomization surface; and a heating element comprising a heating portion and a conductive portion, the heating portion being connected to the atomization surface and being used for heating the aerosol generating substrate by being electrified, and the conductive portion being connected to the loading surface and being electrically connected to the heating portion, and the conductive portion being used for conducting current to the heating portion. The base body comprises a mounting surface comprising the atomization surface and the loading surface; and the heating body further comprises:

2. The heat generating body according to claim 1, characterized by a separation element arranged at the connection between the atomization surface and the loading surface and protruding away from the mounting surface, the separation element being used for blocking the flow of the aerosol generating substrate to the loading portion. The mounting surface is a plane; 3. The heat generating body according to claim 2, characterized by in a direction perpendicular to the mounting surface, the height of the protrusion of the separation element relative to the mounting surface is greater than the height of the protrusion of the conductive portion relative to the mounting surface; and / or, the height of the protrusion of the separation element relative to the mounting surface is less than 150 μm. The base body comprises a mounting surface comprising the atomization surface and the loading surface; in a direction perpendicular to the mounting surface, the distance between the loading surface and the center of the base body is greater than the distance between the atomization surface and the center of the base body.

4. The heat generating body according to claim 1, characterized by 5. The heating body according to claim 4, wherein: the loading surface is arranged to be inclined relative to the atomization surface; or the loading surface and the atomization surface are formed as a continuous curved surface. The slope between the loading surface and the atomization surface is less than 2°.

6. The heat generating body according to claim 5, wherein The loading surface is parallel to the atomization surface; 7. The heat generating body according to claim 4, wherein the connection between the loading surface and the atomization surface is a bevel; or the connection between the loading surface and the atomization surface is a curved surface. The loading portion is a dense structure, and the loading portion is not provided with the liquid guide passage; 8. The heat generating body according to any one of claims 1 to 7, characterized by, the atomization portion is a porous structure, and the liquid guide passage comprises micropores in the porous structure; and / or the atomization portion is provided with a plurality of through holes, and the liquid guide passage comprises a plurality of the through holes. The heating body according to any one of claims 1-8.

9. An atomiser characterised in that, The atomizer according to claim 9; and the power supply being electrically connected to the atomizer.

10. An aerosol-generating device comprising: ​ ​ ​ ​

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