WO2024007613A1

WO2024007613A1 - Aerosol generation device and heating assembly thereof

Info

Publication number: WO2024007613A1
Application number: PCT/CN2023/080926
Authority: WO
Inventors: 王守平; 赵鑫楠; 赵双; 孙来; 苏海悦; 孙利佳; 纪海新; 张进
Original assignee: 海南摩尔兄弟科技有限公司
Priority date: 2022-07-06
Filing date: 2023-03-10
Publication date: 2024-01-11
Also published as: CN115119979A

Abstract

An aerosol generation device and a heating assembly thereof. The heating assembly comprises a heating core (12), a protective sleeve (11) sleeved outside the heating core (12), and a first electrode (141) and a second electrode (142), which are connected to the heating core (12). The heating core (12) is made of electrically conductive ceramics, which has good resistance-value stability; and when powered on, the entire heating core (12) is heated and can fully and quickly bake an atomization matrix. The protective sleeve (11) is sleeved outside the heating core (12), such that the overall strength of the heating assembly can be effectively improved, and the reliability of the heating assembly during use is improved; in addition, the heating core (12) can also be effectively protected from being eroded by external substances, and the electrical performance stability of the heating assembly during use is improved.

Description

Aerosol generating device and its heating component

Technical field

The present invention relates to the field of atomization, and more specifically, to an aerosol generating device and its heating component.

Background technique

The heat-not-burn aerosol generating device heats the atomization substrate in a low-temperature heat-not-burn method to generate aerosol for the user to inhale. The core component of the heat-not-burn aerosol generating device is the heating component. The existing heating method of the heating component is usually tubular peripheral heating or central embedded heating. Tubular peripheral heating means that the heating component surrounds the atomization matrix to heat the atomization matrix. Central embedded heating means that the heating component is inserted into the atomization matrix to heat the atomization matrix. At present, the central embedded heating components are generally in the form of sheets or needles. The preparation method is to screen-print resistance heating circuits on a metal or ceramic substrate and then cover them with a glaze layer and then bake them. When both ends of the resistance heating circuit of the heating component are energized, the heating component heats up and bakes the atomized substrate, producing aerosol for the user to inhale.

Existing heating components have the following problems:

1. When energized, heat is only generated on the resistance heating circuit, the uniformity of the thermal field is poor, and the atomization matrix cannot be fully and effectively baked;

2. In order to ensure stable resistance value during use, the materials used in printed resistor heating circuits are mostly precious metal slurries, which have high material costs. In addition, improper recycling after the end of product life can easily cause environmental pollution;

3. In order to ensure the stable heating position of heating components in different batches, high printing accuracy is required and the manufacturing process is complex;

4. Due to the limitations of the preparation method, the heating component has a multi-layer structure, which is not strong enough and has the risk of fracture and failure.

Contents of the invention

The technical problem to be solved by the present invention is to provide an improved heating component and an aerosol generating device having the heating component in view of the above-mentioned defects of the prior art.

The technical solution adopted by the present invention to solve the technical problem is to construct a heating component for heating the atomization substrate. The heating component includes a heating core, a protective sheath placed outside the heating core, and a protective sheath respectively connected with the heating core. The heating core is connected to the first electrode and the second electrode, and the heating core is conductive ceramic.

In some embodiments, the protective cover is made of thermally conductive ceramic material.

In some embodiments, the protective cover has uniform thermal conductivity.

In some embodiments, the protective sleeve has different thermal conductivities in its axial and/or circumferential directions.

In some embodiments, the heating core has uniform resistivity.

In some embodiments, the heating core has different resistivities in its axial and/or circumferential directions.

In some embodiments, the first electrode and the second electrode are respectively connected to both axial ends of the heating core.

In some embodiments, the heating core includes two dividing grooves extending from one end surface of the heating core and two heating parts divided and formed by the two dividing grooves, and the first electrode and the third The two electrodes are respectively connected to the two heating parts.

In some embodiments, the heating component further includes an annular first conductive member, and the first electrode is connected to the heating core through the first conductive member.

In some embodiments, the heating component further includes an annular second conductive member, and the second electrode is connected to the heating core through the second conductive member.

In some embodiments, the outer surface of the heating component is a smooth surface.

In some embodiments, the heating core has a cylindrical shape, and the protective cover has a circular tube shape.

In some embodiments, the heating component includes a tapered head, and the heating component is configured to be inserted into the atomization matrix via the tapered head.

In some embodiments, both the first electrode and the second electrode are wire electrodes.

In some embodiments, a through hole is formed in the heating core, and the heating component further includes a support rod extending through the through hole.

In some embodiments, the support rod is made of insulating material or conductive material.

In some embodiments, the heating component further includes a fixing base, and a fixing hole for the protective cover to pass through is formed in the fixing base.

The present invention also provides an aerosol generating device, including the heating component described in any one of the above.

The implementation of the present invention at least has the following beneficial effects: the heating core is made of conductive ceramics, with good resistance stability. The entire heating core generates heat when energized, and can fully and quickly bake the atomized substrate; by installing a protective sheath outside the heating core, it can It effectively improves the overall strength of the heating component and improves the reliability of the heating component during use. In addition, it can also effectively protect the heating core from erosion by external substances and improve the electrical performance stability of the heating component during use.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples. In the accompanying drawings:

Figure 1 is a schematic three-dimensional structural diagram of the heating component in the first embodiment of the present invention;

Figure 2 is a schematic structural diagram of the longitudinal section of the heating component shown in Figure 1;

Figure 3 is a schematic diagram of the exploded structure of the heating component shown in Figure 1;

Figure 4 is a schematic longitudinal cross-sectional structural view of the heating component in the second embodiment of the present invention;

Figure 5 is a schematic longitudinal cross-sectional structural diagram of the heating component in the third embodiment of the present invention;

Figure 6 is a schematic three-dimensional structural diagram of the heating component in the fourth embodiment of the present invention;

Figure 7 is a schematic longitudinal cross-sectional structural view of the heating component shown in Figure 6;

Figure 8 is a schematic diagram of the exploded structure of the heating component shown in Figure 6;

Figure 9 is a schematic three-dimensional structural diagram of the aerosol generating device in use in some embodiments of the present invention;

FIG. 10 is a schematic structural diagram of a longitudinal cross-section of the aerosol generating device shown in FIG. 9 .

Implementation

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail 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 invention. However, the present invention can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "longitudinal", "axial", "length", "width", "upper", "lower", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that is customarily placed when the product of the present invention is used. It is only for the convenience of describing the present invention and simplifying the description. Any indication or implication that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation should not be construed as a limitation on the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Figures 1-3 show the heating component 10 in the first embodiment of the present invention. The heating component 10 can be inserted into the atomization matrix to bake and heat the atomization matrix. It includes a heating core 12, The protective sheath 11 outside the core 12 and the first electrode 141 and the second electrode 142 are respectively connected to the two poles of the heating core 12 . When a voltage is applied to the two poles of the heating core 12 through the first electrode 141 and the second electrode 142, an electric current passes through the heating core 12 to generate heat, thereby realizing the heating component 10 to bake the atomized substrate. In this embodiment, the heating component 10 is needle-shaped. In other embodiments, the heating component 10 may also be in a sheet shape or other shapes.

The heating core 12 is an integrated heating structure with high structural strength. When the entire heating core 12 is powered on, the entire heating core 12 generates heat, and the high temperature section accounts for a high proportion in the thermal field, so that the atomization substrate can be fully and quickly baked, aerosols are generated quickly, and the aerosols have a rich aroma. In addition, the heating core 12 has good resistance stability and temperature field stability, and is not easily affected by external factors, ensuring a consistent suction experience every time the atomization matrix is replaced.

In some embodiments, the heating core 12 may be made of conductive ceramic material. Specifically, the heating core 12 can be prepared by high-temperature sintering of conductive ceramic materials. The heating core 12 prepared by high-temperature sintering has a compact and dense structure that is not easily damaged and has good resistance stability. Ceramic materials are environmentally friendly, pollution-free, and have no risk of heavy metals, making them extremely safe.

In addition, by designing different conductive structures of conductive ceramic materials, for example, by designing the shape and/or resistivity of the conductive ceramic, the heating core 12 can have different temperature field distributions to adapt to different types of atomization substrates and meet different needs. Type of heating needs. In this embodiment, the heating core 12 has a cylindrical shape and has uniform resistivity. This design makes the thermal field of the 12-circle circle of the heating core the same, so that the atomized matrix is evenly baked and fully baked without dead zones. The thermal field of the 12-circle circle of the columnar heating core has no high-temperature spots, ensuring that the aerosol aroma is mellow and free of burnt smell. taste. It is understood that in other embodiments, the heating core 12 may also be in a sheet shape or other shapes. In other embodiments, the heating core 12 can also be made of conductive materials with different resistivities. For example, the heating core 12 has different resistivities in its axial direction and/or circumferential direction.

Further, in some embodiments, the heating core 12 may be a cermet, which is a composite oxide of metal and ceramic, including a ceramic phase and a metal phase. The metal phase can be one of Ni, Fe, Cu, Co and stainless steel, or any combination (including alloy) between them. This metallic phase does not contain precious metal materials and therefore is less expensive. In other embodiments, the metallic phase may also include noble metal materials without considering cost. The addition of the ceramic phase has two functions: one is to regulate the resistivity of the cermet, and the other is to improve the mechanical properties of the cermet. The ceramic phase may be one of aluminum oxide, zirconium oxide, cerium oxide, titanium oxide, manganese oxide, chromium oxide, iron oxide, nickel oxide, yttrium oxide, lanthanum oxide, samarium oxide, niobium oxide, molybdenum oxide, zinc oxide or Any combination between them. The resistivity of the cermet is related to the material composition of the metal phase and the ceramic phase, the morphology of their respective powders, the ratio of the metal phase to the ceramic phase, and the sintering density and other parameters. The resistivity of the cermet can be controlled by controlling relevant parameters.

Furthermore, the ceramic bulk material of the ceramic phase can also be doped and replaced with appropriate element types and doping amounts, in order to appropriately enhance the structural stability of the ceramic phase and improve its mechanical properties. For example, doping zirconia with yttrium can improve the phase structure stability of zirconia; doping alumina with zirconium can improve the toughness of alumina. It is worth noting that no matter what element is used and how much doping amount is used for doping and substitution of the ceramic body material, it is within the protection scope of the present invention.

The protective cover 11 is set outside the heating core 12 and has thermal conductivity. It does not affect the heat transfer from the heating core 12 to the atomization matrix. On the one hand, it can increase the overall strength of the heating component 10 and prevent the heating component 10 from being damaged during the cleaning process or accidents. It improves the safety of use by preventing breakage such as falling. On the other hand, it can also effectively protect the heating core 12 from being eroded by external substances (such as the smoke generated when the atomization substrate is heated, residual substances after the atomization substrate is heated, etc.). Improve the electrical performance stability of the heating component 10 during use. In order to improve the heat transfer efficiency from the heating core 12 to the protective cover 11, the matching gap between the heating core 12 and the protective cover 11 needs to be as small as possible. In some embodiments, the fitting gap between the heating core 12 and the protective cover 11 can also be filled with thermally conductive materials such as glass glaze to improve heat transmission efficiency.

In this embodiment, the protective sleeve 11 is in the shape of a circular tube, which can be made of an insulating ceramic material with high thermal conductivity, and the protective sleeve 11 has uniform thermal conductivity in both its axial and circumferential directions. The ceramic material is environmentally friendly and pollution-free, and the protective cover 11 can be in direct contact with the atomized substrate. Through the high thermal conductivity and environmental protection performance of the protective cover 11, the temperature field of the heating component 10 can be made more uniform without high-temperature spots, ensuring that the smoke is pure and has no unpleasant burnt smell. In addition, in other embodiments, the protective sheath 11 can also be made of ceramic materials with different thermal conductivities. For example, the protective sheath 11 has different thermal conductivities in its axial direction and/or circumferential direction, so that the protective sheath 11 can be made of ceramic materials with different thermal conductivities. The secondary adjustment of the temperature field distribution presents different baking flavors. In other embodiments, the protective sleeve 11 can also be made of conductive material, and then the protection can be achieved by providing an insulating coating on the inner wall of the protective sleeve 11 and/or an insulating coating on the outer wall of the heating core 12 . The insulation between the sleeve 11 and the heating core 12.

The outer surface of the heating component 10 is a smooth surface, so that the heating component 10 is easy to clean, reduces the burnt smell caused by soot adhered to the outer surface during long-term use, and provides consumers with a good use experience. Specifically, the outer surface of the protective cover 11 can be glazed or polished to improve its surface smoothness.

The first electrode 141 and the second electrode 142 are used to connect to an external power supply, thereby supplying power to the heating core 12 . The first electrode 141 and the second electrode 142 have low resistivity, which in some embodiments may be electrode wires, such as aluminum wires or silver wires. Both the first electrode 141 and the second electrode 142 may be directly connected to the heating core 12 by coating conductive paste or soldering, or may be indirectly connected to the heating core 12 through an intermediate conductive member. In this embodiment, the first electrode 141 and the second electrode 142 are directly connected to both axial ends of the heating core 12 . The contact position between the first electrode 141 and the second electrode 142 and the heating core 12 can be the heating core 12 The end surface, outer wall surface or inner wall surface. When a voltage is applied to both axial ends of the heating core 12 through the first electrode 141 and the second electrode 142, a current passes through the heating core 12 to generate heat, thereby achieving baking and heating of the atomized substrate. The input form of the electrodes at both axial ends can ensure that there is no need for a slit design on the heating core 12, thereby improving the heating uniformity and baking the atomized substrate with good uniformity.

Furthermore, in this embodiment, the heating core 12 is in the shape of a hollow tube with a through hole 120 formed therethrough in the longitudinal direction (ie, the axial direction of the heating core 12 ). The heating component 10 may further include a support rod 13 extending through the through hole 120 . The support rod 13 can enhance the overall strength of the heating component 10 and prevent the heating component 10 from breaking during use. The support rod 13 and the heating core 12 can be bonded and fixed through glass glaze or ceramic paint.

The support rod 13 includes a rod portion 131 and a head 132 provided at the upper end of the rod portion 131 . The rod portion 131 is received in the through hole 120 and may be cylindrical. The lower end surface of the rod portion 131 can be flush with the lower end surface of the heating core 12 . The head 132 at least partially extends out of the through hole 120, and the heating component 10 is inserted into the atomization matrix through the head 132. Furthermore, the head 132 can also be rounded, for example, can be sharpened, in order to reduce the friction force between the head 132 and the atomized matrix, so as to facilitate the insertion of the head 132 into the atomized matrix. Specifically, in this embodiment, the head 132 is conical or truncated. The lower end of the head 132 and the upper end of the protective sleeve 11 can be bonded and fixed by glass glaze or ceramic coating, thereby forming a sealed space inside the protective sleeve 11 . It is understandable that in other embodiments, the support rod 13 may only include a rod portion 131 , and the head 132 may also be formed on the protective cover 11 .

The support rod 13 can be made of conductive material or insulating material. In this embodiment, the support rod 13 is made of insulating material, which can be made of insulating ceramic materials such as zirconia ceramics. The first electrode 141 can extend along the rod portion 131 and be electrically connected to the upper end of the heating core 12 . Further, the rod portion 131 can also be formed with a wiring channel 1310, which can be used to route the first electrode 141 and fix the first electrode 141. Specifically, in this embodiment, the wiring channel 1310 may be formed on the outer surface of the rod part 131 , and may extend longitudinally upward from the lower end of the rod part 131 to the upper end of the rod part 131 . The support rod 13 with the first electrode 141 passes through the through hole 120 in the heating core 12, and the support rod 13 and the heating core 12 can be bonded and fixed through glass glaze or ceramic coating. At the same time, the first electrode 141 The circuit is connected to the upper end surface of the heating core 12 by coating conductive paste or soldering.

In order to prevent the first electrode 141 from contacting the inner wall of the heating core 12 and causing a short circuit, an insulation structure 1411 may also be provided between the first electrode 141 and the inner wall of the heating core 12 . The structural form of the insulation structure 1411 is not limited. For example, the insulation structure 1411 can be a separately prepared insulation sleeve, such as a silicone sleeve or a plastic sleeve, and the first electrode 141 is wrapped in the wiring channel 1310 through the insulation sleeve. For another example, the insulating structure 1411 may also be an insulating coating disposed on the first electrode 141 , which may be implemented by using insulating materials such as glass glaze and ceramic materials to prepare an insulating coating on the first electrode 141 . In other embodiments, the wiring channel 1310 can also be formed inside the rod portion 131. In this case, there is no need to provide an insulating structure 1411, and the rod portion 131 can prevent the first electrode 141 from contacting the inner wall of the heating core 12. purpose of a short circuit.

In this embodiment, the second electrode 142 can be electrically connected to the lower outer wall surface of the heating core 12 through conductive paste or soldering. A slot 110 may be provided on the lower side wall of the protective cover 11 , and the slot 110 may be used to limit the position of the second electrode 142 and provide an escape space for the second electrode 142 . It is understandable that in other embodiments, the second electrode 142 may also be electrically connected to the lower end inner wall surface of the heating core 12 or the lower end surface of the heating core 12 .

Furthermore, the heating component 10 may also include a fixing base 15, and a fixing hole 150 for the protective cover 11 to pass through may be formed in the fixing base 15 along the longitudinal direction. The outer wall surface of the lower end of the protective sleeve 11 can be bonded and fixed with the hole wall of the fixing hole 150 through glass glaze or ceramic material. The fixed base 15 can be in contact with other external components, thereby achieving fixed limitation of the entire heating component 10 . In some embodiments, the fixed base 15 may be made of high-temperature resistant materials such as ceramic or PEEK (polyetheretherketone).

Figure 4 shows the heating component 10 in the second embodiment of the present invention. The main difference from the first embodiment is that the heating component 10 in this embodiment also includes a first conductive member 161 and a second conductive member 162. , the first electrode 141 is connected to the heating core 12 through the first conductive member 161 , and the second electrode 142 is connected to the heating core 12 through the second conductive member 162 . The first conductive member 161 and the second conductive member 162 are both annular and have lower resistivity than the heating core 12 . The current in the first electrode 141 preferentially flows through the annular first conductive member 161, thereby increasing the contact conduction area between the first electrode 141 and the heating core 12, and improving the stability of the connection between the first electrode 141 and the heating core 12. . The current in the second electrode 142 preferentially flows through the annular second conductive member 162 , thereby increasing the contact conductive area between the second electrode 142 and the heating core 12 and improving the stability of the connection between the second electrode 142 and the heating core 12 .

Specifically, in this embodiment, the first conductive member 161 may be an annular short metal tube, which may be sleeved between the upper outer wall surface of the rod portion 131 and the upper inner wall surface of the heating core 12 . The first electrode 141 is electrically connected to the first conductive member 161 , and the outer wall surface of the first conductive member 161 is in contact with the inner wall surface of the upper end of the heating core 12 . In other embodiments, when the first electrode 141 is connected to the upper end surface or the upper outer wall surface of the heating core 12, the shape and location of the first conductive member 161 can be adjusted accordingly. For example, when the first electrode 141 is connected to the upper end surface of the heating core 12, the first conductive member 161 can be an annular metal sheet and is clamped between the lower end surface of the head 132 and the upper end surface of the heating core 12; when When the first electrode 141 is connected to the outer wall surface of the upper end of the heating core 12 , the first conductive member 161 can be an annular metal short tube and can be placed outside the upper end of the heating core 12 .

The second conductive member 162 may be an annular short metal tube, which may be sleeved outside the lower end of the heating core 12 . The second electrode 142 is in electrical communication with the outer wall surface of the second conductive member 162 , and the inner wall surface of the second conductive member 162 is in contact with the outer wall surface of the lower end of the heating core 12 . In other embodiments, when the second electrode 142 is connected to the lower inner wall surface or the lower end surface of the heating core 12 , the shape and location of the second conductive member 162 can be adjusted accordingly.

Figure 5 shows the heating component 10 in the third embodiment of the present invention. The main difference from the first embodiment is that in this embodiment, the support rod 13 in the heating component 10 is made of conductive materials such as metal. become. At this time, the first electrode 141 can be connected to the upper end of the heating core 12 through the support rod 13 .

Specifically, in this embodiment, the support rod 13 is directly connected to the upper end of the heating core 12, and the contact connection position between the support rod 13 and the upper end of the heating core 12 can be selected from the upper end surface and/or the upper end inner wall surface of the heating core 12. . The remaining positions of the support rod 13 that are not in conduction with the heating core 12 need to be prepared with an insulating layer to prevent the remaining positions of the support rod 13 that are not in conduction with the heating core 12 from contacting the heating core 12 and causing a short circuit. The first electrode 141 can be connected to the lower end of the support rod 13 by coating conductive paste or soldering. The contact position between the first electrode 141 and the lower end of the support rod 13 can be at the lower end surface of the rod portion 131 or There is no need to form a wiring channel for the first electrode 141 on the outer wall surface of the lower end, so that the rod portion 131 does not need to be formed.

Figures 6-8 show the heating component 10 in the fourth embodiment of the present invention. The main difference from the first embodiment is that in this embodiment, the first electrode 141 and the second electrode 142 are respectively connected with the heating core. The lower end of 12 is connected to both side walls. Two dividing grooves 121 are formed on the side wall of the heating core 12. Each dividing groove 121 extends longitudinally upward from the lower end surface of the heating core 12 to near the upper end of the heating core 12 but does not penetrate the upper end surface of the heating core 12, so that The heating core 12 is divided into two circumferentially spaced heating parts 122 and a connecting part 123 connecting the upper ends of the two heating parts 122 together. The first electrode 141 and the second electrode 142 are respectively connected to the lower end outer walls of the two heating parts 122 , and the two heating parts 122 are connected at the upper ends through the connecting part 123 .

Two slots 110 are formed on the lower end side wall of the protective cover 11. The two slots 110 can be used to limit the positions of the first electrode 141 and the second electrode 142 respectively, and can provide the first electrode 141 and the second electrode. 142 of the avoidance space. Further, in this embodiment, the two dividing grooves 121 are arranged symmetrically with respect to the central axis of the heating core 12 , the two heating parts 122 are arranged symmetrically with respect to the central axis of the heating core 12 , and the two slots 110 are arranged symmetrically with respect to the protective cover. The central axis of 11 is set symmetrically. The extension length of each dividing groove 121 is greater than half of the length of the heating core 12 . It can be understood that in other embodiments, the number of dividing grooves 121, heating parts 122, and slots 110 is not limited to two, and may also be more than two.

When assembling the heating component 10, the support rod 13 can be directly inserted into the heating core 12 and then integrated into the protective cover 11. The matching gap between the support rod 13, the heating core 12 and the protective cover 11 needs to be as small as possible to improve the heat transfer efficiency. In some embodiments, the fitting gap may be filled with a thermally conductive material such as glass frit.

It can be understood that in other embodiments, the contact positions of the first electrode 141 , the second electrode 142 and the heating core 12 may also be the lower inner wall surface or the lower end surface. In other embodiments, the contact position between the first electrode 141 and the second electrode 142 and the heating core 12 may also be the upper end of the heating core 12. Correspondingly, the dividing groove 121 extends longitudinally downward from the upper end surface of the heating core 12. to the vicinity of the lower end of the heating core 12.

It can be understood that the above embodiments are only simplified models of the present invention. Without departing from the technical principles of the present invention, the structural form can be improved and components can be added or deleted, which are all within the protection scope of the present invention.

In addition, it should be noted that the structure of the heating core 12 of the present invention includes but is not limited to the two structural designs of the above-mentioned first embodiment and the fourth embodiment.

Figures 9-10 illustrate an aerosol generating device 100 in some embodiments of the present invention. The aerosol generating device 100 can be used to bake and heat the atomized matrix 200 inserted therein at a low temperature to prevent combustion in a non-combustible state. The aerosol extract in the aerosolized matrix 200 is released. The atomization matrix 200 can be in the shape of a cylinder, and the aerosol generating device 100 can be generally in the shape of a square column. The atomizing matrix 200 is detachably inserted into the aerosol generating device 1000, so that it is convenient to take out and replace the atomizing matrix 200 with a new one after the heating is completed. It can be understood that in other embodiments, the aerosol generating device 100 is not limited to a square columnar shape, and may also be in a cylindrical shape, an elliptical columnar shape, or other shapes.

The aerosol generating device 100 includes a housing 30 and a heating component 10 housed in the housing 30 , a container 20 , a battery 40 , and a motherboard 50 . The heating component 10 can be the heating component in any of the above embodiments.

The container 20 may be cylindrical, and its inner wall defines a receiving space 21 for accommodating the atomized matrix 200 . A socket 31 for inserting the atomizing matrix 200 is provided on the top wall of the housing 30 . The atomizing matrix 200 can be inserted into the receiving space 21 through the socket 31 . The upper end of the heating component 10 can extend into the receiving space 21 and be inserted into the atomization matrix 200 for baking and heating the atomization matrix 200 after being powered on and heated. The battery 40 is electrically connected to the mainboard 50 and the heating component 10 respectively to provide power to the mainboard 50 and the heating component 10 . Relevant control circuits are arranged on the motherboard 50 , and the connection between the battery 40 and the heating component 10 can be controlled through the switch provided on the casing 30 .

It can be understood that the above technical features can be used in any combination without limitation.

The above embodiments only express specific embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention; it should be noted that for those of ordinary skill in the art, Without departing from the concept of the present invention, the above technical features can be freely combined, and several modifications and improvements can be made, which all belong to the protection scope of the present invention; therefore, any equivalent transformations made within the scope of the claims of the present invention and modifications shall fall within the scope of the claims of the present invention.

Claims

A heating component used to heat an atomization substrate, characterized in that the heating component includes a heating core (12), a protective sheath (11) placed outside the heating core (12), and a protective sheath (11) respectively connected to the heating core (12). The core (12) connects the first electrode (141) and the second electrode (142), and the heating core (12) is made of conductive ceramics.
The heating component according to claim 1, characterized in that the protective cover (11) is made of thermally conductive ceramic material.
The heating component according to claim 1, characterized in that the protective cover (11) has uniform thermal conductivity.
The heating component according to claim 1, characterized in that the protective sleeve (11) has different thermal conductivities in its axial and/or circumferential directions.
The heating component according to claim 1, characterized in that the heating core (12) has uniform resistivity.
The heating component according to claim 1, characterized in that the heating core (12) has different resistivities in its axial and/or circumferential directions.
The heating component according to claim 1, characterized in that the first electrode (141) and the second electrode (142) are respectively connected to both axial ends of the heating core (12).
The heating component according to claim 1, characterized in that the heating core (12) includes two dividing grooves (121) extending from one end surface of the heating core (12) and the two dividing grooves. (121) Two heat-generating parts (122) are divided and formed, and the first electrode (141) and the second electrode (142) are respectively connected to the two heat-generating parts (122).
The heating component according to claim 1, characterized in that the heating component further includes an annular first conductive member (161), and the first electrode (141) is connected to the first conductive member (161) through the first conductive member (161). The heating core (12) is connected.
The heating component according to claim 1, characterized in that the heating component further includes an annular second conductive member (162), and the second electrode (142) is connected to the second conductive member (162) through the second conductive member (162). The heating core (12) is connected.
The heating component according to claim 1, wherein the outer surface of the heating component is a smooth surface.
The heating component according to claim 1, characterized in that the heating core (12) has a cylindrical shape and the protective sheath (11) has a circular tube shape.
The heating component according to claim 1, characterized in that the heating component includes a cone-shaped head (132), and the heating component is configured to be inserted into the atomizer via the cone-shaped head (132). in the matrix.
The heating component according to claim 1, characterized in that both the first electrode (141) and the second electrode (142) are electrode wires.
The heating component according to any one of claims 1 to 14, characterized in that a through hole (120) is formed in the heating core (12), and the heating component further includes a through hole (120) provided through the through hole (120). 120) support rod (13).
The heating component according to claim 15, characterized in that the support rod (13) is made of insulating material or conductive material.
The heating component according to any one of claims 1 to 14, characterized in that the heating component further includes a fixed seat (15), and a hole is formed in the fixed seat (15) for the protective sheath (11) to wear. Provide fixing holes (150).
An aerosol generating device, characterized by comprising the heating component according to any one of claims 1 to 17.