Heating assembly and aerosol generating device

Abstract

The utility model provides a heating assembly and an aerosol generating device. The heating assembly comprises a containing pipe and a heating core. The heating core is arranged in the containing pipe and is in heat conduction contact with the containing pipe, first openings are formed in the two ends of the containing pipe, and the first opening in one end is used for allowing at least part of the aerosol generating substrate to be inserted into the containing pipe; the heating core comprises a plurality of substrates; air holes are formed in the substrate and penetrate through the substrate; the plurality of substrates are stacked in sequence, and the air holes of the adjacent substrates are communicated to form an airflow channel penetrating through the heating core; at least one of the multiple substrates is provided with a heating layer, and the heating layer is used for generating heat to heat gas flowing through the gas flow channel. According to the heating assembly and the aerosol generating device, the airflow of the aerosol generating device can directly pass through the heating layer to be heated, the process of transferring heat from the outside to the inside is omitted, and the heating efficiency is improved.

Description

Technical Field

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

[0002] An aerosol generating device is a device that atomizes an aerosol generating substrate into an aerosol. The aerosol generating device usually directly heats the aerosol generating substrate circumferentially through a heating tube, or heats the airflow that has not yet flowed into the aerosol generating substrate circumferentially through a heating tube, and the hot airflow then flows into the aerosol generating substrate. Both methods have the same problem, that is, the heat is gradually transferred from the outside of the heating tube to the inside, and the heat has a long energy transfer process, resulting in low heating efficiency. Utility Model Content

[0003] The present application provides a heating component and an aerosol generating device, which can solve the problem of low heating efficiency of existing aerosol generating devices.

[0004] In order to solve the above problems, the present application provides a heating component, including a receiving tube and a heating core; the heating core is arranged inside the receiving tube and in thermal contact with the receiving tube, and first openings are arranged at both ends of the receiving tube, and the first opening at one end is used to allow at least part of the aerosol generating matrix to be inserted into the receiving tube; the heating core includes multiple substrates; pores are arranged on the substrates, and the pores penetrate the substrates; the multiple substrates are stacked in sequence, and the pores of adjacent substrates are connected to form an air flow channel penetrating the heating core; at least one of the multiple substrates is provided with a heating layer, and the heating layer is used to generate heat to heat the gas flowing through the air flow channel.

[0005] In one embodiment, the pores penetrate the substrate along the thickness direction of the substrate, and multiple substrates are stacked in sequence along the thickness direction; along the thickness direction, the substrate has a first surface and a second surface relative to each other, and a heating layer is arranged on the first surface and / or the second surface of at least one substrate.

[0006] In one embodiment, the plurality of substrates include a first substrate, at least one intermediate substrate and a second substrate; the intermediate substrate is located between the first substrate and the second substrate, and a heat generating layer is disposed on at least one of the intermediate substrates.

[0007] In one embodiment, the substrate is a film made by a casting process, and the substrate is configured as a substrate with a thermal conductivity greater than 10 W / (K*m).

[0008] In one embodiment, a plurality of substrates are fixedly connected by a sintering process, and a heating core and a receiving tube are fixedly connected by a sintering process.

[0009] In one embodiment, the heating component also includes a first electrode wire and a second electrode wire, the heating core also includes a first electrode layer and a second electrode layer, and the multiple substrates include a heat transfer substrate and a heating substrate; an electrode hole is provided on the substrate, and the electrode hole passes through the substrate in the thickness direction, and the electrode holes of adjacent substrates are connected to form an electrode channel passing through the heating core; the heating layer is arranged on the first surface and / or the second surface of the heating substrate; the substrate has a side surface arranged along the circumference of the substrate, and the first electrode layer is arranged on the side surface of the heating substrate, and the second electrode layer is arranged on the electrode hole of the heating substrate, and the first electrode layer and the second electrode layer are both connected to the heating layer; one end of the first electrode wire is arranged inside the electrode channel and is electrically connected to the first electrode layer, one end of the second electrode wire is electrically connected to the second electrode layer, and the other end of the first electrode wire and the other end of the second electrode wire are used to be electrically connected to a power source.

[0010] In one embodiment, the heating component includes a first conductor and a second conductor; the first conductor wraps one end of the first electrode wire, and the second conductor wraps one end of the second electrode wire; the first conductor is arranged inside the electrode channel and is electrically in contact with the first electrode layer, and the second conductor is electrically in contact with the second electrode layer.

[0011] In one embodiment, an opening is provided on the receiving tube, and the opening is arranged opposite to the heating layer; the second conductor is arranged inside the opening to contact with the second electrode layer.

[0012] In one embodiment, the first electrical conductor blocks the second opening of the electrode channel close to the gas outlet channel.

[0013] In order to solve the above problems, the present application provides an aerosol generating device, which includes a shell assembly and a heating assembly involved in any of the above embodiments, the shell assembly has an air inlet channel and an air outlet channel, the heating assembly is arranged between the air inlet channel and the air outlet channel, and the first opening at one end of the receiving tube is connected to the air inlet channel, and the first opening at the other end of the receiving tube is connected to the air outlet channel.

[0014] The present application provides a heating component and an aerosol generating device, wherein the heating component includes a receiving tube and a heating core; the heating core is arranged inside the receiving tube and in thermal contact with the receiving tube, and first openings are arranged at both ends of the receiving tube, wherein the first opening at one end is used for allowing at least part of the aerosol generating matrix to be inserted into the receiving tube; the heating core includes a plurality of substrates; pores are arranged on the substrates, and the pores penetrate the substrates; the plurality of substrates are stacked in sequence, and the pores of adjacent substrates are connected to form an air flow channel penetrating the heating core; a heating layer is arranged on at least one of the plurality of substrates, and the heating layer is used to generate heat to heat the gas flowing through the air flow channel. The heating component is provided with a heating core, and a heating layer is provided on a substrate inside the heating core. An airflow channel that can be connected to an aerosol generating matrix is ​​formed in the heating core. The airflow entering the receiving tube will flow through the airflow channel and be directly heated in the airflow channel. The formed hot airflow then flows into the aerosol generating matrix. Compared with the existing heating tube, the airflow can be directly heated through the heating layer, eliminating the heat transfer process from the outside to the inside, thereby improving the heating efficiency; in addition, the heating core can be in thermal contact with the receiving tube, and the heat of the heating core can be further transferred to the receiving tube, so that the receiving tube can heat the aerosol generating matrix from the circumferential direction. The heating component of the present application heats the aerosol generating matrix by two methods: hot air flow and circumferential heating, which greatly improves the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an aerosol generating device provided in one embodiment of the present application;

[0016] Figure 2 for Figure 1 A cross-sectional view of

[0017] Figure 3 A schematic structural diagram of an aerosol generating device provided in another embodiment of the present application;

[0018] Figure 4 for Figure 3 A cross-sectional view of

[0019] Figure 5 A schematic diagram of an exploded structure of some components of an aerosol generating device provided in one embodiment of the present application;

[0020] Figure 6 A schematic diagram of the structure of a heating assembly provided in one embodiment of the present application;

[0021] Figure 7 for Figure 6 A cross-sectional view of

[0022] Figure 8 for Figure 6 Schematic diagram of the explosion structure;

[0023] Fig. 9 A schematic diagram of the structure of a substrate provided in one embodiment of the present application;

[0024] Fig.10 A cross-sectional view of a heating layer and a heating substrate provided in one embodiment of the present application.

[0025] Description of the drawings: Shell assembly: 10, air inlet channel: 11, air outlet channel: 12, socket: 121, base: 13, upper support: 14, heating assembly: 20, receiving tube: 21, heating core: 22, heating layer: 221, substrate: 222, air hole: 2221, air flow channel: 2222, first surface: 2223, second surface: 2224, first substrate: 2225, middle substrate: 2226, second substrate: 2227, electrode hole: 2228, electrode channel: 2229, heating substrate: 222a, first electrode layer: 223, second electrode layer: 224, first electrode wire: 225, second electrode wire: 226, aerosol generating matrix: 30. DETAILED DESCRIPTION

[0026] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0027] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0028] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0029] The terms "parallel", "vertical", etc. are defined for the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and approximately parallel, approximately vertical, etc. are all acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°. The directional terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0030] Please refer to Figure 1-5 The present application provides an aerosol generating device and a heating component 20. The heating component 20 is used to be installed in the aerosol generating device. The aerosol generating device includes a housing component 10 and a heating component 20. The housing component 10 is provided with an air inlet channel 11 and an air outlet channel 12. The air inlet channel 11 and the air outlet channel 12 are both connected to the atmosphere.

[0031] The heating component 20 is disposed inside the housing component 10, and the heating component 20 is disposed between the air inlet passage 11 and the air outlet passage 12. Figure 5-8 As shown, the heating component 20 includes a receiving tube 21 and a heating core 22. First openings are provided at both ends of the receiving tube 21, that is, both ends of the receiving tube 21 are open ends. The first opening at one end of the receiving tube 21 is connected to the air outlet channel 12, and the first opening at the other end of the receiving tube 21 is connected to the air inlet channel 11. The first opening at one end of the receiving tube 21 is used for inserting at least part of the aerosol generating matrix 30 into the receiving tube 21. In the aerosol generating device, the end of the receiving tube 21 close to the air outlet channel 12 is used to receive the aerosol generating matrix 30. Specifically, as Figure 1-4 As shown, the end of the air outlet channel 12 away from the air inlet channel 11 has a socket 121, and the aerosol generating matrix 30 can be inserted into the interior of the housing assembly 10 from the socket 121, and installed in the receiving tube 21 through the air outlet channel 12. After the inhalation is completed, the aerosol generating matrix 30 can be pulled out of the housing assembly 10 from the socket 121.

[0032] The aerosol generating substrate 30 may specifically include a plant leaf substrate, such as a tobacco substrate. The aerosol generating substrate 30 may also include a protective sleeve, which may wrap the plant leaf substrate. For example, the plant leaf substrate may be wrapped in aluminum foil or paper for use. Figure 1 and Figure 2The aerosol generating device may not include the aerosol generating substrate 30, and the aerosol generating substrate 30 is only used as a consumable material, such as Figure 3 and Figure 4 The aerosol generating device may also include an aerosol generating substrate 30, depending on the circumstances.

[0033] like Figure 1-4 , the heating core 22 is arranged inside the receiving tube 21 and is in thermal contact with the receiving tube 21. Specifically, in one embodiment, the heating core 22 is fixedly connected to the receiving tube 21. Furthermore, the axis of the heating core 22 coincides with the axis of the receiving tube 21, and the surface of the heating core 22 facing the air outlet channel 12 is used to abut against the aerosol generating matrix 30, that is, the aerosol generating matrix 30 is inserted into the receiving tube 21 from the socket 121, and abuts against the surface of the heating core 22 facing the air outlet channel 12, so that the end of the aerosol generating matrix 30 close to the heating core 22 is received in the receiving tube 21. In other embodiments, the end of the receiving tube 21 close to the air outlet channel 12 may have a fixing portion, and the fixing portion is used to abut against the aerosol generating matrix 30 to install the aerosol generating matrix 30.

[0034] like Figure 6-10 As shown, the heating core 22 includes a heating layer 221 and a plurality of substrates 222. It should be noted that the plurality of substrates 222 is at least two, or more than two. In one embodiment, the substrate 222 is a film made by a casting process. Fig. 9 and Fig.10 As shown, the substrate 222 is provided with air holes 2221, and the air holes 2221 penetrate the substrate 222. In one embodiment, the air holes 2221 penetrate the substrate 222 along the thickness direction of the substrate 222. Preferably, each substrate 222 is provided with a plurality of air holes 2221, and the plurality of air holes 2221 are evenly arranged in the radial direction and the circumferential direction of the substrate 222, so that the air flow can flow to the aerosol generating substrate 30 evenly in the radial direction and the circumferential direction.

[0035] like Figure 7-8 As shown, a plurality of substrates 222 are stacked in sequence, and the direction in which the plurality of substrates 222 are stacked in sequence may be the thickness direction of the substrate 222, that is, the plurality of substrates 222 are stacked in sequence along the thickness direction of the substrate 222. The plurality of substrates 222 are stacked, and the pores 2221 of adjacent substrates 222 are connected. The pores 2221 of each substrate 222 are connected in sequence to form an airflow channel 2222 that runs through the heating core 22. One end of the airflow channel 2222 is connected to the air inlet channel 11, and the other end of the airflow channel 2222 is used to communicate with the aerosol generating matrix 30.

[0036] Please refer to Fig.10Among the multiple substrates 222, at least one substrate 222 is provided with a heating layer 221. In one embodiment, along the thickness direction of the substrate 222, the substrate 222 has a first surface 2223 and a second surface 2224 relative to each other, and the first surface 2223 and / or the second surface 2224 of at least one substrate 222 is provided with a heating layer 221.

[0037] The heating layer 221 is used to generate heat to heat the gas flowing through the air flow channel 2222. The heating layer 221 can be, for example, a heating sheet, a heating film, or a heating net. The heating layer 221 can be disposed on the substrate 222 by coating, deposition, printing, or other processes. The shape of the heating layer 221 can be the same as or different from the shape of the first surface 2223 or the second surface 2224. Preferably, the shape of the heating layer 221 is the same as the shape of the first surface 2223 or the second surface 2224.

[0038] When the user inhales, the airflow enters the interior of the aerosol generating device from the air inlet channel 11; the cold airflow flows from the air inlet channel 11 into the airflow channel 2222, is heated by the heating layer 221 to form a hot airflow and flows into the aerosol generating matrix 30, and the aerosol generating matrix 30 is heated by the hot airflow to generate an aerosol for the user to inhale. Compared with the existing method of circumferentially heating the aerosol generating matrix 30 by the heating tube, the airflow of the aerosol generating matrix 30 can be directly heated through the heating layer 221, eliminating the heat transfer process from the heating tube to the inside of the heating tube, thereby improving the heating efficiency. In addition, the heating core 22 can be in thermal contact with the receiving tube 21, and the heat of the heating core 22 can be further transferred to the receiving tube 21, so that the receiving tube 21 can heat the aerosol generating matrix 30 from the circumferential direction. The heating component 20 of the present application uses hot air flow and circumferential heating to heat the aerosol generating matrix 30, which greatly improves the heating efficiency.

[0039] Furthermore, providing a heating layer 221 on at least one of the multiple substrates 222 is beneficial to controlling the shape and thickness of the heating layer 221, so as to control the resistance value of the heating layer 221, thereby enabling temperature control by using the resistance characteristics of the heating layer 221. The positions of the heating layers 221 on the multiple substrates 222 are also controllable, which is beneficial to selecting the distance between the heating layer 221 and the aerosol generating matrix 30 as needed.

[0040] Preferably, the material of the receiving tube 21 can be selected from materials with high thermal conductivity and insulation, such as ceramics. It should be noted that the high thermal conductivity mentioned in this application refers to a thermal conductivity greater than 10W / (K*m). Since the heating layer 221 is arranged on the substrate 222, some heat of the heating layer 221 will be transferred to the substrate 222. By making the receiving tube 21 as a receiving tube 21 with high thermal conductivity, the heat transfer from the substrate 222 to the receiving tube 21 can be increased. The receiving tube 21 can contact the side wall of the aerosol generating matrix 30 to guide the heat of the receiving tube 21 to the aerosol generating matrix 30, thereby further improving the heating efficiency.

[0041] In order to prevent the heat of the receiving tube 21 from being transferred to the housing assembly 10, the housing assembly 10 supporting the receiving tube 21 may be made of a high temperature resistant and low thermal conductivity material, such as plastic, polyetheretherketone, etc. Specifically, in one embodiment, the housing assembly 10 includes a base 13 and an upper support member 14, the base 13 supports one end of the receiving tube 21, the upper support member 14 supports the other end of the receiving tube 21, the inside of the base 13 forms an air inlet channel 11, and the inside of the upper support member 14 forms an air outlet channel 12. The base 13 and the upper support member 14 may be made of a material with high thermal conductivity and insulation.

[0042] Similarly, in order to increase the heat transfer speed of the substrate 222, the substrate 222 may also be made of a material with high thermal conductivity and insulation, that is, the substrate 222 is configured as an insulating substrate 222 with a thermal conductivity greater than 10W / (K*m). In a specific embodiment, the material of the substrate 222 may be ceramic. The material of the substrate 222 may be the same as that of the receiving tube 21, or may be different.

[0043] In one embodiment, a plurality of substrates 222 are fixed together to improve the structural strength of the heating core 22. Preferably, adjacent substrates 222 in the plurality of substrates 222 are fixed together in pairs. When manufacturing the heating core 22, holes may be punched in each substrate 222 first, and a heating layer 221 may be manufactured on one substrate 222 or some substrates 222 as required. The substrates 222 are stacked together in sequence and then sintered, that is, a plurality of substrates 222 are fixed together by a sintering process, and then the fixed plurality of substrates 222 are arranged in a receiving tube 21, and the heating core 22 is fixedly connected to the receiving tube 21 by a sintering process, and then electrodes connected to the heating layer 221 are manufactured. In other embodiments, the manufacturing process of the heating element may not be completely the same as the above steps, and the order of the steps may be adjusted as required.

[0044] In one embodiment, if Figure 7As shown, in the axial direction of the heating core 22, the heating layer 221 is located in the middle of the heating core 22. That is, the plurality of substrates 222 include a first substrate 2225, at least one intermediate substrate 2226, and a second substrate 2227. The intermediate substrate 2226 is located between the first substrate 2225 and the second substrate 2227, and the heating layer 221 is disposed on at least one substrate 222 of the intermediate substrates 2226. In other embodiments, the first substrate 2225 is disposed closer to the air outlet channel 12 than the second substrate 2227. The heating layer 221 can also be arranged on the first substrate 2225 and / or the second substrate 2227 and / or the intermediate substrate 2226; but when the heating layer 221 is arranged on the first substrate 2225, the heating layer 221 on the first substrate 2225 directly contacts the aerosol generating matrix 30 and may burn the aerosol generating matrix 30; when the heating layer 221 is arranged on the second substrate 2227, after the heating layer 221 on the second substrate 2227 heats the cold air to form a hot air flow, the hot air flow still has a long distance to flow to the aerosol generating matrix 30, and the temperature of the hot air flow reaching the aerosol generating matrix 30 may be reduced too much, which is not conducive to improving the heat transfer efficiency. Therefore, it is a better solution to arrange the heating layer 221 in the middle of the heating layer 221.

[0045] In one embodiment, if Figure 6-10 As shown, the substrate 222 is also provided with an electrode hole 2228. The electrode hole 2228 penetrates the substrate 222 along the thickness direction, and the electrode holes 2228 of adjacent substrates 222 are connected to form an electrode channel 2229 penetrating the heating core 22. The plurality of substrates 222 include a heat transfer substrate 222a and a heat generating substrate 222a, wherein the heat generating layer 221 is provided on the first surface 2223 and / or the second surface 2224 of the heat generating substrate 222a. That is, the heat generating substrate 222a in the plurality of substrates 222 is provided with a heat generating layer 221, and the heat transfer substrate 222a is not provided with a heat generating layer 221.

[0046] The substrate 222 has side surfaces arranged along the circumference of the substrate 222. Fig.10As shown, the heating core 22 also includes a first electrode layer 223 and a second electrode layer 224. The first electrode layer 223 is arranged on the side surface of the heating substrate 222a, and the second electrode layer 224 is arranged on the electrode hole 2228 of the heating substrate 222a. The first electrode layer 223 and the second electrode layer 224 are both connected to the heating layer 221. In this embodiment, the first electrode layer 223 and the second electrode layer 224 form two electrodes of the heating layer 221. The first electrode layer 223 and the second electrode layer 224 can be arranged on the side surface of the heating substrate 222a and the hole wall of the electrode hole 2228 respectively by a printing process. The first electrode layer 223 and the second electrode layer 224 can be selected from metal materials with high conductivity, such as silver. By arranging the electrode layer on the side surface of the heating substrate 222a and the electrode hole 2228, the electrode layer is used to be electrically connected to the electrode wire, and the electrode wire can be electrically connected to the power supply to electrically connect the heating layer 221 to the power supply, so that the power supply can supply power to the heating layer 221. The side surface of the heating substrate 222a and the hole wall of the electrode hole 2228 both have a certain area for printing the electrode layer, so as to reduce the difficulty of the connection process between the electrode layer and the electrode wire.

[0047] Preferably, the heating layer 221 has the same shape as the first surface 2223 or the second surface 2224 of the heating substrate 222a, the first electrode layer 223 is arranged on the entire side surface of the heating substrate 222a, and the second electrode layer 224 is arranged on the hole wall of the entire electrode hole 2228, which is beneficial to improve the thermal uniformity of the heating layer 221 in the circumferential direction and reduce the uneven heating in the circumferential direction.

[0048] In other embodiments, the electrodes of the heating layer 221 may also be disposed on the side surface of the heating substrate 222a, and / or, the electrodes of the heating layer 221 may also be disposed on the first surface 2223 and / or the second surface 2224 of the heating substrate 222a. The number and position of the electrodes of the heating layer 221 may vary according to the shape and position of the heating layer 221.

[0049] Furthermore, if Figure 6-8 As shown, the heating assembly 20 includes a first electrode wire 225 and a second electrode wire 226. One end of the first electrode wire 225 is disposed inside the electrode channel 2229 and is electrically connected to the first electrode layer 223, one end of the second electrode wire 226 is electrically connected to the second electrode layer 224, and the other end of the first electrode wire 225 and the other end of the second electrode wire 226 are used to be electrically connected to a power source. Thus, the heating layer 221 can be electrically connected to the power source, so that the power source can supply power to the heating layer 221.

[0050] Further, the heating assembly 20 includes a first conductor (not shown) and a second conductor (not shown). The first conductor wraps one end of the first electrode wire 225, and the second conductor wraps one end of the second electrode wire 226. The first conductor is arranged inside the electrode channel 2229 and is in electrical contact with the first electrode layer 223. An opening (not shown) is arranged on the receiving tube 21, and the opening is arranged opposite to the heating layer 221. The second conductor is arranged inside the opening to be in electrical contact with the second electrode layer 224, a part of the second electrode wire 226 is arranged inside the opening, and another part of the second electrode wire 226 is arranged outside the receiving tube 21. The shape of the outer surface of the first conductor can be the same as the shape of the inner wall surface of the electrode channel 2229, and the shape of the outer surface of the second conductor can be the same as the shape of the inner wall surface of the opening. The material of the first conductor and the second conductor can be a metal with high conductivity, for example, silver.

[0051] In the process, the second electrode layer 224 is printed on the side surface of the heating substrate 222a, and the first electrode layer 223 is printed on the hole wall of the electrode hole 2228; the first electrode wire 225 is inserted into the electrode channel 2229, and then the silver paste is poured into the electrode channel 2229, so that the silver paste wraps the first electrode wire 225; the second electrode wire 226 is inserted into the opening, and the silver paste is poured into the opening, so that the silver paste wraps the second electrode wire 226; finally, the heating component 20 is sintered to sinter the silver paste into a solid. Through this process, the heating layer 221 can be electrically connected to the electrode wire through the electrode layer, the conductor, and the heating layer 221. Compared with directly welding the heating layer 221 to the electrode wire, the difficulty of electrically connecting the electrode wire to the heating layer 221 is reduced, and the electrical connection is more stable.

[0052] In one embodiment, if Figure 7 As shown, the first conductor blocks the second opening of the electrode channel 2229 near the outlet channel 12, thereby preventing oil and residue from falling into the electrode channel 2229 near one end of the first conductor near the outlet channel 12 and being difficult to clean. Preferably, in order to facilitate the process, the first conductor can fill the entire electrode channel 2229.

[0053] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A heating component, characterized in that: include: Receiving tube and heating core; The heating core is arranged inside the receiving tube and in thermal contact with the receiving tube, and first openings are arranged at both ends of the receiving tube, wherein the first opening at one end is used for inserting at least part of the aerosol generating matrix into the receiving tube; The heating core comprises a plurality of substrates; the substrates are provided with pores, and the pores penetrate the substrates; The plurality of substrates are stacked in sequence, and the air holes of adjacent substrates are connected to form an air flow channel that passes through the heating core; A heat generating layer is disposed on at least one of the plurality of substrates, and the heat generating layer is used to generate heat to heat the gas flowing through the air flow channel.

2. The heating assembly according to claim 1, characterized in that The pores penetrate the substrate along the thickness direction of the substrate, and a plurality of the substrates are stacked in sequence along the thickness direction; along the thickness direction, the substrate has a first surface and a second surface relative to each other, and the heat generating layer is provided on the first surface and / or the second surface of at least one of the substrates.

3. The heating assembly according to claim 1, characterized in that: The plurality of substrates include a first substrate, at least one intermediate substrate and a second substrate; the intermediate substrate is located between the first substrate and the second substrate, and the heat generating layer is disposed on at least one of the intermediate substrates.

4. The heating assembly according to claim 1, characterized in that The substrate is a film made by a casting process, and the substrate is configured as a substrate with a thermal conductivity greater than 10 W / (K*m).

5. The heating assembly according to claim 1, characterized in that The plurality of substrates are fixedly connected by a sintering process, and the heating core and the receiving tube are fixedly connected by a sintering process.

6. The heating assembly according to any one of claims 2 to 5, characterized in that: The heating assembly further comprises a first electrode wire and a second electrode wire, the heating core further comprises a first electrode layer and a second electrode layer, and the plurality of substrates comprises a heat transfer substrate and a heating substrate; The substrate is provided with electrode holes, and the electrode holes penetrate the substrate along the thickness direction of the substrate, and the electrode holes of adjacent substrates are connected to form an electrode channel that penetrates the heating core; the heating layer is arranged on the first surface and / or the second surface of the heating substrate; the substrate has a side surface arranged along the circumference of the substrate, and the first electrode layer is arranged on the side surface of the heating substrate, and the second electrode layer is arranged on the electrode holes of the heating substrate, and the first electrode layer and the second electrode layer are both connected to the heating layer; one end of the first electrode wire is arranged inside the electrode channel and is electrically connected to the first electrode layer, one end of the second electrode wire is electrically connected to the second electrode layer, and the other end of the first electrode wire and the other end of the second electrode wire are used for electrically connecting to a power source.

7. The heating assembly according to claim 6, characterized in that The heating component includes a first conductor and a second conductor; the first conductor wraps one end of the first electrode wire, and the second conductor wraps one end of the second electrode wire; the first conductor is arranged inside the electrode channel and is electrically in contact with the first electrode layer, and the second conductor is electrically in contact with the second electrode layer.

8. The heating assembly according to claim 7, characterized in that The receiving tube is provided with an opening, and the opening is arranged opposite to the heating layer; the second conductor is arranged inside the opening to be in electrical contact with the second electrode layer.

9. An aerosol generating device, characterized in that: It comprises a shell component and a heating component as described in any one of claims 1 to 8, wherein the shell component has an air inlet channel and an air outlet channel, the heating component is arranged between the air inlet channel and the air outlet channel, and the first opening at one end of the receiving tube is connected to the air inlet channel, and the first opening at the other end of the receiving tube is connected to the air outlet channel.

10. The aerosol generating device according to claim 9, characterized in that: The heating component is the heating component as claimed in claim 7, and the first conductor blocks the second opening of the electrode channel close to the gas outlet channel.

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