Heating element for a heat-not-burn device and heat-not-burn device

Abstract

This application relates to the technical field of aerosol generation equipment, specifically to a heating element and a heating-non-combustible device. The heating element includes: a tube portion having a product insertion port and a receiving cavity, wherein the product insertion port is used for inserting the aerosol-generated product into the receiving cavity, and the cavity wall is used for heat transfer through contact with the outer peripheral surface of the aerosol-generated product; a seat portion connected to the end of the tube portion away from the product insertion port, used for heat transfer through contact with the end face of the aerosol-generated product; and a needle portion fixedly disposed on the seat portion and extending into the receiving cavity for insertion into the aerosol-generated product to heat it from the inside. The tube portion, seat portion, and needle portion form a synergistic triple heating structure, which can heat the peripheral surface, end face, and interior of the aerosol-generated product separately, helping to improve heating efficiency, shorten preheating time, and improve heating uniformity.

Description

Technical Field

[0001] This application relates to the field of aerosol generation equipment technology, specifically to a heating element and a heating non-combustible device. Background Technology

[0002] The heated non-combustible device can generate aerosols by heating the aerosol generating product. The aerosol generating product is generally rod-shaped. When in use, the matrix section of the aerosol generating product is inserted into the device and heated by contact with the heating element inside the device.

[0003] Since aerosol-generating products need to reach a certain temperature to produce aerosols, they usually need to be preheated before the device is put into use. However, the current heating methods of heating elements are usually central heating or circumferential heating, and the heat transfer path of the heating element extends in one direction. It takes a long time to achieve sufficient preheating, which affects the user experience. Utility Model Content

[0004] This application provides a new heating element and a heating non-combustible device in order to shorten the preheating time before use.

[0005] According to a first aspect, one embodiment provides a heating element for a non-combustible heating device, comprising:

[0006] The tube body has a product insertion port and a receiving cavity. The product insertion port is used to insert the aerosol-generated product into the receiving cavity, and the cavity wall of the receiving cavity is used to contact the outer peripheral surface of the aerosol-generated product for heat transfer.

[0007] The base portion is connected to the end of the tube portion away from the product inlet and is used to contact the end face of the aerosol-generated product for heat transfer.

[0008] The needle body is fixedly disposed on the seat body and extends into the receiving cavity for insertion into the aerosol generating article to heat from inside the aerosol generating article.

[0009] In one embodiment, the tube body, the seat body, and the needle body are integrally formed.

[0010] In one embodiment, at least one of the tube body, the seat body, and the needle body is provided with a plurality of capillary pores with capillary adsorption function for adsorbing the aerosol condensate after heating the aerosol-generated product.

[0011] In one embodiment, the heating element further includes a chamber portion disposed on the side of the base portion away from the receiving cavity, thereby forming a storage cavity together with the base portion; the base portion is provided with a plurality of capillary pores, which communicate with the storage cavity to allow the aerosol condensate absorbed by the capillary pores to be introduced into the storage cavity for storage; and / or,

[0012] The needle body is provided with capillary pores; a liquid collection tank is provided in the needle body, and the liquid collection tank is connected to at least a portion of the capillary pores for collecting the aerosol condensate absorbed by the connected capillary pores.

[0013] In one embodiment, the liquid collection tank is connected to the storage cavity.

[0014] In one embodiment, the chamber has a guide slope for guiding the aerosol condensate in the chamber to converge.

[0015] In one embodiment, the compartment portion is arranged in an inverted cone shape, with the cone tip located on the side away from the base portion.

[0016] In one embodiment, the needle body includes a cylindrical section and a conical tip section, the cylindrical section being connected between the conical tip section and the base portion, and the capillary pores on the needle body are disposed on the cylindrical section.

[0017] In one embodiment, the tube body, the seat body, and the needle body are made of porous metal felt sintered.

[0018] According to a second aspect, one embodiment provides a heating non-combustible device, comprising:

[0019] The heating element described in any of the above embodiments;

[0020] And a power supply component, which is electrically connected to the heating element to supply power to the heating element.

[0021] The heating element according to the above embodiment employs a triple heating structure in which the tube body, the seat body, and the needle body work together. The tube body is in close contact with the outer peripheral surface of the aerosol generating product for heat transfer, which helps to efficiently preheat the outer edge of the aerosol generating product and block radial heat loss. The seat body directly heats the end face of the aerosol generating product, which helps to preheat the end face of the aerosol generating product and block axial heat loss. The needle body heats from the inside of the aerosol generating product. This forms a regional synchronous heating mechanism, which helps to improve heating efficiency and shorten preheating time.

[0022] In addition, the coordinated heating of the tube body, seat body and needle body helps to reduce the risk of local overheating or insufficient heating of aerosol-generated products and improves heating uniformity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the heating element of a heating non-combustible device according to one embodiment;

[0024] Figure 2 This is a schematic cross-sectional view of the heating element of a non-combustible heating device according to one embodiment.

[0025] Figure 3 A schematic cross-sectional view of the heating element of a non-combustible heating device according to another embodiment;

[0026] Figure 4 This is a schematic cross-sectional view of the heating element of a non-combustible heating device according to another embodiment.

[0027] Figure 5 This is a top view of the heating element of a non-combustible heating device according to one embodiment;

[0028] Figure 6 This is a cross-sectional structural schematic diagram of a heating non-combustion device according to one embodiment.

[0029] In the diagram, 100 is the heating element; 110 is the tube body; 111 is the product insertion port; 112 is the receiving cavity; 113 is the raised edge; 120 is the base body; 121 is the supporting protrusion; 130 is the needle body; 131 is the cylindrical section; 1311 is the liquid collection tank; 132 is the conical tip section; 140 is the capillary; 150 is the storage chamber; 151 is the storage cavity; 152 is the guide slope; and 160 is the lead wire.

[0030] 200. Power supply components;

[0031] 300. Housing; 310. Insertion port;

[0032] 400. Mounting component; 410. Mounting tube; 420. Base; 430. Top cover; 431. Through hole; 432. Limiting part; 440. Mounting cavity; 441. Limiting protrusion; 450. Isolation space;

[0033] 500. Aerosol-generated products. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0035] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0036] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0037] The heating element 100 used in the heated non-combustible device is mainly divided into two types according to its heating structure: circumferential heating and central heating. The circumferential heating element 100 is usually tubular, and the aerosol generating product 500 can be inserted into the heating element 100. Heat is transferred through contact between the outer circumferential surface and the tubular inner wall of the heating element 100, thus achieving heating from the outside. The central heating element 100 is usually needle-shaped. When the aerosol generating product 500 is inserted into the device, the heating element 100 can be inserted into the interior of the aerosol generating product 500, directly contacting and transferring heat with the aerosol matrix inside the aerosol generating product 500, thus achieving internal heating.

[0038] The aerosol generating product 500 needs to be heated to a suitable temperature to produce aerosols. Therefore, before use, the aerosol generating product 500 usually needs to be preheated in a heated non-combustible device to reach the temperature required to generate aerosols before extraction. However, heating elements 100 with a single heating method (circumferential heating or center heating) have limited heating areas and long heat transfer paths due to their unidirectional heat transfer path. Preheating the aerosol generating product 500 requires a long time, affecting the user experience.

[0039] In this embodiment, by providing a tube body 110, a seat body 120, and a needle body 130 in the heating element 100, synchronous heating can be performed in different regions from the outer peripheral surface, end face, and interior of the aerosol-generated product 500, which helps to improve heating efficiency and shorten preheating time. Furthermore, the interconnection of the tube body 110, seat body 120, and needle body 130 also helps to reduce the thermal resistance of the heating element 100, further improving heating efficiency.

[0040] An embodiment of the heating element in the heating non-combustible device of this application:

[0041] In one embodiment, please refer to Figures 1-5 The heating element 100 of the heating non-combustible device includes a tube body 110, a base body 120, and a needle body 130.

[0042] Please refer to the following: Figure 1 and Figure 2 The tube body 110 has a product insertion port 111 and a receiving cavity 112. The receiving cavity 112 is connected to the outside of the heating element 100 through the product insertion port 111, so that the aerosol generating product 500 can be inserted into the receiving cavity 112 through the product insertion port 111.

[0043] The cross-sectional shape and size of the receiving cavity 112 can match the cross-sectional shape and size of the aerosol generating article 500, so that after the aerosol generating article 500 is inserted into the receiving cavity 112, the outer peripheral surface of the aerosol generating article 500 can be in close contact with the cavity wall of the receiving cavity 112 to form a first heat conduction interface, thereby transferring heat from the cavity wall of the receiving cavity 112 to the outer peripheral surface of the aerosol generating article 500.

[0044] For example, the tube body 110 can be arranged in a cylindrical shape, while the aerosol generating product 500 is arranged in a cylindrical shape. The inner cavity of the tube body 110 serves as a receiving cavity 112, and the opening at one end of the tube body 110 serves as a product insertion port 111. The cross-sectional dimension of the receiving cavity 112 can be equal to or slightly smaller than the cross-sectional dimension of the aerosol generating product 500, so that the aerosol generating product 500 can be coaxially inserted into the receiving cavity 112, and the outer peripheral surface of the aerosol generating product 500 and the cavity wall of the receiving cavity 112 are in close contact to achieve circumferential contact heat transfer.

[0045] Please refer to Figure 1 and Figure 2 The base portion 120 is connected to the end of the tube portion 110 away from the product inlet 111, and is used to contact the end face of the aerosol generating product 500 for heat transfer. The contact between the base portion 120 and the end face of the aerosol generating product 500 forms a second heat conduction interface, which helps to preheat the end face of the aerosol generating product 500 and reduces the axial heat loss of the aerosol generating product 500 by sealing.

[0046] Please refer to Figure 1 and Figure 2 The needle body 130 is fixedly disposed on the base body 120 and extends into the receiving cavity 112 for insertion into the aerosol generating article 500 to establish a third heat conduction interface, serving as a heat core for heating from inside the aerosol generating article 500. Exemplarily, the needle body 130 can be disposed on the base body 120 along the axial direction of the receiving cavity 112 so that after insertion into the aerosol generating article 500, it can be located at the center of the aerosol generating article 500, maintaining a uniform distance from the tube wall of the tube body 110, thereby improving heating uniformity.

[0047] By coordinating the regional heating of the tube body 110, the seat body 120, and the needle body 130, a parallel heat flow network can be constructed through the first heat conduction interface, the second heat conduction interface, and the third heat conduction interface. This helps to reduce the heating range of each part, shorten the heat transfer path, and facilitate the establishment of a uniform temperature field in the radial and axial directions of the aerosol-generated product 500. This improves the problem of low heating efficiency caused by individual circumferential heating or center heating requiring layer-by-layer heating, thereby increasing preheating efficiency and shortening preheating time.

[0048] Furthermore, it helps reduce the temperature difference between different areas within the aerosol-generating product 500 during heating, reduces the risk of local overheating or insufficient heating, improves the fullness and uniformity of the released aerosol, and enhances the smoking experience.

[0049] Furthermore, since the base portion 120 is connected to the tube portion 110 and the needle portion 130 is fixedly disposed on the base portion 120, the three are connected to each other to form a whole, which helps to reduce thermal resistance while improving structural strength and further improving heating efficiency.

[0050] In one embodiment, the tube body 110, the seat body 120, and the needle body 130 can be integrally formed, for example, by metal powder injection molding, to further reduce the interfacial thermal resistance, so that heat can be efficiently transferred between the tube body 110, the seat body 120, and the needle body 130, while improving the overall mechanical strength and preventing deformation and cracking caused by long-term thermal stress.

[0051] After the heating element 100 heats the aerosol generating article 500, the aerosol remaining in the receiving cavity 112 easily cools and forms aerosol condensate, which adheres to the surface of the heating element 100. This not only easily affects the heat transfer efficiency of the heating element 100, but also easily contaminates the subsequently inserted aerosol generating article 500, affecting the user experience.

[0052] In order to ensure the safe use of the heating non-combustible device and avoid burns to users, the heating element 100 is usually located inside the heating non-combustible device, which makes it difficult to clean the heating element and makes the pollution problem caused by aerosol condensate more prominent.

[0053] In one embodiment, please refer to Figures 2 to 4 At least one of the tube body 110, the seat body 120, and the needle body 130 may be provided with a plurality of capillary pores 140 having capillary adsorption function. The capillary pores 140 may be provided on the surfaces of the tube body 110, the seat body 120, and the needle body 130 that are in contact with the aerosol generating product 500, so as to adsorb the aerosol condensate after heating the aerosol generating product 500, which helps to prevent the aerosol condensate from remaining in the receiving cavity 112, so that the heating element 100 has a cleaning-free effect within the set service life.

[0054] In some embodiments, please refer to Figure 2 and Figure 3 The capillary pores 140 can be provided through the tube body 110, the seat body 120, or the needle body 130 to serve as air channels connecting the receiving cavity 112 and the external environment, allowing external air to enter the receiving cavity 112. In one embodiment, please refer to... Figure 5 Alternatively, a support protrusion 121 may be provided at the junction of the base portion 120 or the tube portion 110 to support the aerosol generating article 500 inserted into the receiving cavity 112, so that external air can enter the interior of the aerosol generating article 500 through the end face of the aerosol generating article 500.

[0055] In one embodiment, please refer to Figure 2 The base portion 120 may be provided with a plurality of capillary pores 140. The heating element 100 also includes a storage chamber portion 150, which is disposed on the side of the base portion 120 away from the receiving cavity 112, so as to form a storage cavity 151 with the base portion 120. The capillary pores 140 on the base portion 120 communicate with the storage cavity 151 so that the aerosol condensate absorbed by the capillary pores 140 on the base portion 120 is introduced into the storage cavity 151 for storage, thereby increasing the storage capacity of the heating element 100 for aerosol condensate, making the heating element 100 suitable for long-term use and helping to reduce the maintenance frequency.

[0056] The body 150 can be made of high-temperature resistant materials such as metal or PEEK (polyether ether ketone), and can be connected to the base 120 by any detachable or non-detachable method such as bonding, welding, snap-fitting or threaded connection.

[0057] In some embodiments, the heating element 100 may have a usage state in which the storage cavity 151 is located at the bottom of the receiving cavity 112 (e.g., Figure 2(as shown), so that the aerosol condensate drawn into the capillary 140 can be discharged into the storage chamber 151 by gravity after aggregation.

[0058] In one embodiment, please refer to Figure 2 The storage compartment 150 may have a guide slope 152 to guide the aerosol condensate in the storage compartment 150 to converge, thereby reducing the residual dead corners of the aerosol condensate.

[0059] For example, the chamber 150 may be arranged in an inverted cone shape, with the cone tip of the chamber 150 located on the side away from the base 120. When the heating element 100 is in use with the base 120 on top and the chamber 150 on the bottom, the inner wall of the chamber 150 serves as a guide slope 152, guiding the aerosol condensate to automatically converge by gravity.

[0060] In one embodiment, the capillary 140 on the tube body 110 can communicate with the capillary 140 on the seat body 120 so that the aerosol condensate collected in the capillary 140 of the tube body 110 can also be introduced into the storage cavity 151 through the capillary 140 on the seat body 120.

[0061] In another embodiment, please refer to Figure 3 The needle body 130 may be provided with capillary pores 140. A liquid collection tank 1311 is provided in the needle body 130, and the liquid collection tank 1311 is connected to at least a portion of the capillary pores 140 for collecting the aerosol condensate absorbed by the connected capillary pores 140.

[0062] For example, the collection tank 1311 can be disposed within the needle body portion 130 along the axial direction of the needle body portion 130. The capillary pores 140 can be distributed approximately radially along the periphery of the collection tank 1311, so that the aerosol condensate absorbed by the capillary pores 140 can be collected and stored in the collection tank 1311, which also helps to increase the storage capacity of the heating element 100 for aerosol condensate.

[0063] It is understood that, in some embodiments, please refer to Figure 4 Alternatively, a storage cavity 151 and a collection tank 1311 can be simultaneously provided in the heating element 100 to further increase the storage capacity of aerosol condensate. Furthermore, the collection tank 1311 can be connected to the storage cavity 151, allowing the aerosol condensate collected in the collection tank 1311 to be channeled into the storage cavity 151 for storage, reducing the risk of aerosol condensate overflow and contamination caused by the capillaries 140 on the needle body 130 being filled.

[0064] In one embodiment, please refer to Figure 4The needle body portion 130 may include a cylindrical section 131 and a conical tip section 132. The cylindrical section 131 is connected between the conical tip section 132 and the base portion 120. The capillary pores 140 on the needle body portion 130 are provided on the cylindrical section 131.

[0065] The cone tip 132 helps to concentrate stress and facilitates insertion into the aerosol generating article 500; moreover, the capillary pore 140 is located on the cylindrical section 131, which helps the cone tip 132 maintain a smooth surface and reduces the insertion resistance of the aerosol generating article 500; it also helps to squeeze the aerosol matrix in the aerosol generating article 500 to the periphery during insertion into the aerosol generating article 500, which helps to reduce the risk of the aerosol matrix getting stuck in the capillary pore 140 and causing the capillary pore 140 to become blocked.

[0066] It is understood that in some embodiments, the surface of the cone tip 132 can be kept smooth by means of a coating or other methods. Furthermore, the cone tip 132 can extend outside the receiving cavity 112, thereby providing guidance for the accurate insertion of the aerosol-generated article 500 into the receiving cavity 112, thus reducing the difficulty of insertion.

[0067] It should be emphasized that the capillary pores 140 described in the above embodiments can be formed by opening holes in the tube body 110, the seat body 120 and the needle body 130; or they can be formed by micropores in the material used for the tube body 110, the seat body 120 and the needle body 130.

[0068] In one embodiment, the tube body 110, the seat body 120, and the needle body 130 can be integrally sintered from porous metal felt. The porous metal felt is a material made by non-woven laying and layering of metal fibers (such as micron-sized stainless steel fibers) and then sintering at high temperature. Its inherent three-dimensional network structure gives it numerous capillary micropores, resulting in a high dirt-holding capacity, which can be used to absorb and store aerosol condensate. Furthermore, the porous metal felt has a high thermal conductivity, which helps to rapidly heat the aerosol-generating product 500, accelerating aerosol generation and shortening preheating time. By providing leads 160 on the surface of the porous metal felt to connect it to a power source, heat can be generated through resistance heating. The structure is simple and easy to process.

[0069] In other embodiments, the portions of the tube body 110, seat body 120, and needle body 130 that do not require capillary pores 140 can also be made of other types of heat-conducting materials, as long as they can be connected to the portions of the porous metal felt material.

[0070] It is understood that the heating form of the heating element 100 is not limited. The tube body 110, the seat body 120, and the needle body 130 can all be used as heat-conducting parts. Heat is generated by heat-generating elements such as resistance sheets, resistance wires, or electromagnetic induction heating elements provided inside or on the surface of the tube body 110, the seat body 120, and the needle body 130, and the various parts of the aerosol generating product 500 are heated by heat conduction.

[0071] Examples of the heating non-combustible device in this application:

[0072] In one embodiment, please refer to Figure 6 The heating non-combustible device includes the heating element 100 and the power supply component 200 in any of the above embodiments. The power supply component 200 and the heating element 100 can be electrically connected through the lead wire 160 to supply power to the heating element 100.

[0073] Those skilled in the art will understand that the power supply component 200 can be understood as a battery cell or a collection of related components such as a battery cell and a circuit board, used to supply power to the heating element. In some embodiments, the power supply component 200 can also be used to control the heating power of the heating element, or to support other functions of the heated non-combustible device, such as displaying usage status information of the heated non-combustible device.

[0074] Furthermore, those skilled in the art should also know that the power supply component 200 is intended to provide the heating element 100 with the energy required for heating. Therefore, depending on the heating principle of the heating element 100, the power supply component 200 may also include elements for generating other forms of energy. For example, if the heating element in the heating element 100 is an electromagnetic induction heating element, the power supply component 200 may also include an electromagnetic coil to provide an induced magnetic field to the heating element in the heating element 100, so that the heating element can generate heat through induced eddy currents. In short, the configuration of the power supply component 200 is not limited, as long as it can supply the heating element 100 with the energy required for heating.

[0075] In one embodiment, please refer to Figure 5 The heating non-combustible device also includes a housing 300, a heating element 100 and a power supply component 200 disposed within the housing 300.

[0076] The housing 300 is provided with an insertion port 310. A mounting component 400 is installed inside the housing 300 corresponding to the insertion port 310. The mounting component 400 includes a mounting tube 410 and a base 420 and a top cover 430 respectively mounted at both ends of the mounting tube 410. The mounting tube 410, base 420, and top cover 430 together form a mounting cavity 440. The top cover 430 has a through hole 431 corresponding to the insertion port 310. When the heating element 100 is installed in the mounting cavity 440, the receiving cavity 112 communicates with the insertion port 310 through the through hole 431. The mounting tube 410, base 420, and top cover 430 can all be made of materials with low thermal conductivity, such as PEEK (polyetheretherketone) and PPSU (polyphenylsulfone), to improve insulation and reduce heat loss.

[0077] The mounting cavity 440 may have a limiting protrusion 441 on its inner wall along its circumference. The tube body 110 has a protruding edge 113 on its periphery of the product insertion port 111. The protruding edge 113 can engage with the limiting protrusion 441, allowing the heating element 100 to be hung in the mounting cavity 440, thus forming an isolation space 450 between the outer side of the heating element 100 and the cavity wall of the mounting cavity 440. The top cover 430 may also have a limiting part 432, which can cooperate with the limiting protrusion 441 to clamp the protruding edge 113, thereby fixing the heating element 100 by limiting the protruding edge 113.

[0078] In a further embodiment, a heat radiation reflective layer may be provided on the cavity wall of the mounting cavity 440 to improve the heat preservation effect on the heating element 100. For example, aluminum foil may be provided as a heat radiation reflective layer on the inner wall of the mounting tube 410.

[0079] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating element for a non-combustible heating device, characterized in that, include: The tube body has a product insertion port and a receiving cavity. The product insertion port is used to insert the aerosol-generated product into the receiving cavity, and the cavity wall of the receiving cavity is used to contact the outer peripheral surface of the aerosol-generated product for heat transfer. The base portion is connected to the end of the tube portion away from the product inlet and is used to contact the end face of the aerosol-generated product for heat transfer. The needle body is fixedly disposed on the seat body and extends into the receiving cavity for insertion into the aerosol generating article to heat from inside the aerosol generating article.

2. The heating element as described in claim 1, characterized in that, The tube body, the seat body, and the needle body are integrally formed.

3. The heating element as described in claim 1, characterized in that, At least one of the tube body, the seat body, and the needle body is provided with a plurality of capillary pores with capillary adsorption function for adsorbing the aerosol condensate after heating the aerosol to form the product.

4. The heating element as described in claim 3, characterized in that, The heating element also includes a chamber, which is disposed on the side of the base portion away from the receiving cavity, so as to form a storage cavity together with the base portion; a plurality of capillary pores are provided through the base portion, and the capillary pores on the base portion are connected to the storage cavity so as to allow the aerosol condensate absorbed by the capillary pores to be introduced into the storage cavity for storage. And / or, The needle body is provided with capillary pores; a liquid collection tank is provided in the needle body, and the liquid collection tank is connected to at least a portion of the capillary pores for collecting the aerosol condensate absorbed by the connected capillary pores.

5. The heating element as described in claim 4, characterized in that, The liquid collection tank is connected to the storage cavity.

6. The heating element as described in claim 4, characterized in that, The chamber has a guide slope to guide the aerosol condensate in the chamber to converge.

7. The heating element as described in claim 6, characterized in that, The compartment body is arranged in an inverted cone shape, with the cone tip located on the side away from the base body.

8. The heating element as described in claim 3, characterized in that, The needle body includes a cylindrical section and a conical tip section. The cylindrical section connects the conical tip section and the base section. The capillary pores on the needle body are disposed on the cylindrical section.

9. The heating element as described in any one of claims 1 to 8, characterized in that, The tube body, the seat body, and the needle body are made of porous metal felt sintered.

10. A heating non-combustible device, characterized in that, include: The heating element according to any one of claims 1 to 9; And a power supply component, which is electrically connected to the heating element to supply power to the heating element.

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