Heating assembly and aerosol generating device

Abstract

A heating assembly and an aerosol generating device. The heating assembly comprises a substrate, first electrodes, and second electrodes. The substrate is tubular. The first electrodes are disposed on the surface of the substrate and surround the substrate. Each of the second electrodes is an elastic structure formed by bending a conductive wire, and an elastic force of each second electrode is capable of clamping the substrate, so as to maintain contact with the corresponding first electrode to form an electrical connection. The heating assembly can improve the adaptability of electrical contact, the mounting process is simple, and by means of the second electrodes, the reliability of contact can be ensured, and it can also be ensured that the second electrodes do not occupy excessive space, thereby improving space utilization efficiency.

Description

Heating components and aerosol generating device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422564876.0, filed on October 22, 2024, entitled “Heating Component and Aerosol Generating Apparatus”, the entire contents of which are incorporated herein by reference.

[0003] Technical Field

[0004] This utility model relates to the field of aerosol generation technology, and in particular to a heating component and an aerosol generation device. Background Technology

[0005] Aerosol generation devices are specialized equipment that suspend solid or liquid particles into aerosols through methods such as heating, ultrasonic vibration, mechanical force, or high-pressure gas. One of the most common methods is to use heating components to heat the particles to their sublimation temperature, thus converting them into gaseous aerosols.

[0006] Currently, in aerosol generating devices, electrodes are installed on the heating tubes, thereby converting the electrical effect into a thermal effect to achieve the heating process of solid or liquid particles.

[0007] Existing heating elements use vertical electrodes. Due to the structural characteristics of vertical electrodes, their top and bottom areas are relatively large, allowing for reliable electrical contact of the heating element using elastic contact pieces. Alternatively, heating elements can also use ring electrodes. However, due to the structural characteristics of ring electrodes, their top and bottom areas are relatively small. When using elastic contact pieces in conjunction with ring electrodes, it is difficult for the elastic contact pieces to achieve contact, and the elastic contact pieces also increase the area they occupy.

[0008] Application content

[0009] The purpose of this invention is to provide a heating component and an aerosol generating device that can improve the adaptability of electrical contact, simplify the installation process, and ensure the reliability of contact through the second electrode while also ensuring that the second electrode does not occupy too much area, thereby improving the space utilization efficiency.

[0010] To achieve this objective, the present invention adopts the following technical solution:

[0011] A heating assembly, comprising:

[0012] The matrix is ​​tubular;

[0013] A first electrode is disposed on the surface of the substrate and surrounding the substrate;

[0014] The second electrode is an elastic structure formed by bending a conductive wire. The elastic force of the second electrode can clamp the substrate, thereby maintaining contact with the first electrode to form an electrical connection.

[0015] As an alternative heating component, the second electrode has at least two portions that contact the first electrode.

[0016] As an alternative heating component, the distance between the at least two locations in contact with the first electrode and the center point of the substrate is less than the radius of the substrate.

[0017] As an alternative heating component, the second electrode is wavy along the circumference of the substrate.

[0018] As an alternative heating component, the second electrode has multiple contact points distributed along the circumferential direction of the substrate, and the maximum distance between the multiple contact points in the circumferential direction of the substrate is greater than or equal to 1 / 2 of the circumference of the substrate.

[0019] As an alternative to the heating component, the contact area between the second electrode and the first electrode is provided with a coating.

[0020] As an alternative to the heating assembly, the heating assembly further includes a first housing, which is sleeved on the outside of the base. The first housing has a clearance hole, and a portion of the structure of the second electrode passes through the clearance hole to maintain contact with the first electrode.

[0021] As an alternative heating assembly, the heating assembly further includes a lead wire located outside the first housing, with one end of the lead wire electrically connected to the portion of the second electrode located outside the first housing, and the other end of the lead wire extending axially along the substrate.

[0022] As an alternative to the heating assembly, the heating assembly further includes a heat insulation element disposed between the base and the first housing.

[0023] As an alternative heating component, the heating component further includes a heating film and a temperature sensing element disposed on the surface of the substrate. The temperature sensing element is attached to the surface of the heating film. The first housing has a first notch, the temperature sensing element is located in the first notch, and the temperature sensing element is separated from the inner wall of the first notch by a gap.

[0024] As an alternative heating component, the second electrode is a flexible, non-closed structure formed by bending conductive wires.

[0025] An aerosol generating device, comprising a housing and a heating component as described in any of the above embodiments, wherein the heating component is disposed inside the housing.

[0026] Beneficial effects:

[0027] In the first aspect of this utility model, the second electrode of the heating component is formed by bending conductive wire to create an elastic, non-closed structure, and the elastic force clamping the substrate can effectively improve the adaptability of electrical contact; in addition, the installation process is simple and the elastic force can ensure reliable contact, and the second electrode will not occupy too much area, thus improving the space utilization efficiency.

[0028] In the second aspect of this utility model, the aerosol generating device based on the above heating components can be applied to various aerosol generating occasions. It can not only reduce the cost of the aerosol generating device, but also further reduce the assembly difficulty of the aerosol generating device. In addition, the outer shell can ensure the stable operation of the heating components inside. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the assembly structure of the substrate, heating film and first electrode provided in an embodiment of the present invention;

[0030] Figure 2 is a schematic diagram of the structure of the second electrode and the first electrode on the substrate provided in an embodiment of the present invention;

[0031] Figure 3 is a schematic diagram of the structure of the second electrode provided in an embodiment of the present invention;

[0032] Figure 4 is a structural schematic diagram of the heating assembly provided in an embodiment of the present invention;

[0033] Figure 5 is a schematic diagram of the structure of the heating assembly with hidden second electrode and lead wire provided in an embodiment of the present invention;

[0034] Figure 6 is a schematic diagram of the structure of the heating assembly with hidden leads provided in an embodiment of the present invention;

[0035] Figure 7 is a schematic diagram of the assembly structure of the first housing and the temperature measuring element provided in an embodiment of the present invention;

[0036] Figure 8 is a schematic diagram of the installation structure of the temperature measuring element and the heat insulation component provided in the embodiment of this utility model;

[0037] Figure 9 is a schematic diagram of the structure in which the temperature measuring element and the heat insulation component are fixed with high-temperature tape according to an embodiment of the present invention.

[0038] In the picture:

[0039] 1. Substrate; 11. Heating chamber; 2. First electrode; 3. Second electrode; 31. Lead wire; 4. Heating film; 5. Temperature sensing element; 6. Heat insulation component; 61. Second notch; 7. High-temperature tape; 8. Sealing ring; 91. First housing; 911. Clearance hole; 912. Snap protrusion; 913. First notch; 92. Second housing; 921. Snap groove. Embodiments of the present invention

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] Please refer to Figures 1-3. A first aspect of this embodiment relates to a heating assembly, which includes a substrate 1, a first electrode 2, and a second electrode 3. The substrate 1 is tubular; the first electrode 2 is disposed on the surface of the substrate 1 and surrounds the substrate 1; the second electrode 3 is an elastic conductive element, specifically a structure formed by bending conductive wires to create an elastic structure. The elastic force of the second electrode 3 can clamp the substrate 1, thereby maintaining contact with the first electrode 2 to form an electrical connection.

[0045] Understandably, conductive components are not limited to conductive wires; they can also be elastic structures formed by bending sheet-like conductive plates. Furthermore, the structures of both the conductive plates and conductive wires after bending can exhibit C-shapes, M-shapes, wavy shapes, serrated shapes, etc. The sheet-like structure of the conductive plate allows for a large contact area between the conductive plate and the substrate, thus ensuring that the elastic force generated after bending the conductive plate adequately guarantees the connection stability between the second electrode 3 and the substrate 1.

[0046] In this embodiment, the substrate 1 is a cylindrical tube, wherein the hollow portion of the substrate 1 forms a heating chamber 11 for removably placing an aerosol generating product capable of generating aerosols.

[0047] The first electrode 2 is arranged around the circumferential outer wall of the substrate 1, and multiple first electrodes 2 can be arranged at intervals on the same substrate 1. In this embodiment, three first electrodes 2 are arranged at intervals, and each first electrode 2 is correspondingly provided with a second electrode 3 electrically connected to it. Those skilled in the art will understand that the first electrode 2 is not limited to being arranged on the outer surface of the substrate 1, but can also be arranged on the inner surface of the substrate 1; in addition, the first electrode 2 is not limited to being arranged in a closed manner with its ends grounded to the ground, but can also be fixed to the substrate 1 in a semi-closed or open manner. Those skilled in the art can make targeted adjustments to the structure, arrangement position and the fit with the substrate 1 of the first electrode 2 according to the actual use scenario and the cost of materials used. This embodiment does not impose specific limitations.

[0048] The second electrode 3 is formed using conductive wire, for example, through a bending process. The formed second electrode 3 has either a non-closed or closed structure, preferably a non-closed structure, meaning the second electrode 3 has a C-shaped opening. The second electrode 3 is elastic and can be made of an elastic metal material, such as stainless steel or piano wire. When assembling the second electrode 3, the C-shaped opening can be directly aligned with the first electrode 2. Under external force, the second electrode 3 undergoes elastic deformation, and the elastic force of the second electrode 3 clamps the substrate 1, thus achieving contact with the first electrode 2. This elastic force also ensures a reliable electrical connection between the second electrode 3 and the first electrode 2.

[0049] The elastic second electrode 3 used in this application is different from the elastic contact sheet. It can not only effectively adapt to vertical electrodes, but more importantly, it can adapt to ring electrodes, thus effectively improving adaptability. In addition, the installation process is simple, and the elastic force can ensure the reliability of the contact without occupying too much area, thus improving the space utilization efficiency. Moreover, compared with the elastic contact sheet, the elastic second electrode 3 itself has a lower cost and is easier to assemble.

[0050] Optionally, the second electrode 3 has at least two portions that contact the first electrode 2.

[0051] In this embodiment, the second electrode 3 is formed by multiple bending processes of conductive wire. The overall second electrode 3 has a symmetrical structure and three contact points with the first electrode 2. In the circumferential direction of the substrate 1, adjacent contact points are spaced 90° apart. The area near the point where the second electrode 3 and the first electrode 2 make contact is V-shaped, with the tip of the V-shape used for direct contact with the first electrode 2. The bending process ensures that the tip of the V-shape maintains its curved surface, guaranteeing sufficient contact area during elastic contact with the first electrode 2 and ensuring good conductivity. In other embodiments, while ensuring reliable clamping of the substrate 1 by the second electrode 3, the number of contact points between the second electrode 3 and the first electrode 2 can be adjusted. For example, the second electrode 3 may have two or more contact points in the circumferential direction to achieve electrical contact with the first electrode 2. For cases with more than three contact points, this can be achieved by increasing the number of bending operations on the second electrode 3.

[0052] Furthermore, the distance between the contact points of the second electrode 3 and the first electrode 2 and the center point of the substrate 1 is less than the radius of the substrate 1.

[0053] For example, the diameter of the substrate 1 is φ8.5, i.e., the radius is 4.25. The distance from the point where the second electrode 3 contacts the first electrode 2 to the center point of the substrate 1 is 3.845. When the second electrode 3 is clamped onto the first electrode 2, it deforms outward, generating a deformation of 0.405. This deformation, combined with the material's elastic modulus, generates a certain compressive force. Those skilled in the art can ensure sufficient contact pressure between the second electrode 3 and the first electrode 2 by appropriately setting the material, thereby achieving reliable conductivity between them. In this embodiment, by making the distance between the contact point of the second electrode 3 and the first electrode 2 and the center point of the substrate 1 less than the radius of the substrate 1, a certain compressive force can be generated at the contact point between the second electrode 3 and the first electrode 2.

[0054] Please refer to Figure 3 for further details. Optionally, the second electrode 3 is wavy along the circumference of the substrate 1.

[0055] In this embodiment, the width of each wave crest of the wave-shaped second electrode 3 can be the same or different. The shape of the wave crest can also be set according to the magnitude of the elastic force. For example, referring to Figure 3, the second electrode 3 has three parts that contact the first electrode 2. The three contact parts are all located at V-shaped sharp corners, and a trapezoidal wave crest structure is formed between two adjacent V-shaped sharp corners.

[0056] Optionally, the second electrode 3 has multiple contact points distributed along the circumferential direction of the substrate 1, and the maximum distance among the multiple contact points in the circumferential direction of the substrate 1 is greater than or equal to 1 / 2 of the circumference of the substrate 1.

[0057] In this embodiment, when the second electrode 3 has multiple contact points in contact with the second electrode 3, the maximum distance between the multiple contact points in the circumferential direction of the substrate 1 is greater than or equal to 1 / 2 of the circumference of the substrate 1. For example, in Figure 2, a is the maximum distance between two contact points in the circumferential direction of the substrate 1, b is the circumference of the substrate 1, and a is greater than or equal to b / 2. In this way, the area of ​​the second electrode 3 covering the first electrode 2 is half or more of the circumferential direction of the substrate 1, thereby preventing the second electrode 3 from slipping off the substrate 1 due to other factors (such as vibration factors) during the clamping process, improving the stability of the second electrode 3 clamped on the substrate 1, and ensuring the reliability of the electrical connection between the second electrode 3 and the first electrode 2.

[0058] Optionally, a plating layer is provided at the contact area between the second electrode 3 and the first electrode 2.

[0059] In this embodiment, the material of the plating layer can be gold, silver or nickel to enhance conductivity. In addition, besides electroplating on the contact area of ​​the second electrode 3, the plating layer can also be applied to the surface of the first electrode 2 according to actual conductivity requirements.

[0060] Please refer to Figure 4. Optionally, the heating assembly also includes a first housing 91, which is sleeved on the outside of the base 1. The first housing 91 is provided with a clearance hole 911, and part of the structure of the second electrode 3 passes through the clearance hole 911 to maintain contact with the first electrode 2.

[0061] In this embodiment, the first housing 91 is a cylindrical shell, and the material can be polyetheretherketone (PEEK). PEEK has excellent high-temperature resistance and chemical corrosion resistance, making it very suitable as a molding material for the shell. A clearance hole 911 is provided on the outer wall of the cylindrical shell of the first housing 91 corresponding to the contact portion of the second electrode 3, so that the contact portion of the second electrode 3 can pass through the clearance hole 911 and maintain contact with the first electrode 2. For example, in the circumferential direction corresponding to the first electrode 2, the second electrode 3 has three contact portions for electrical connection with the first electrode 2. That is, three strip-shaped clearance holes 911 are spaced apart in the circumferential direction of the first housing 91. When the second electrode 3 clamps the substrate 1, the contact portion of the second electrode 3 passes through the clearance hole 911 and contacts the first electrode 2. The structures on both sides of the contact portion of the second electrode 3 are located within the clearance hole 911, and the remaining structures of the second electrode 3 are located on the outside of the first housing 91.

[0062] Please refer to Figures 4-6. Further, the heating assembly also includes a second housing 92, which is disposed at one end of the base 1 and is engaged with the first housing 91 by a snap-fit ​​connection.

[0063] Specifically, a latching protrusion 912 is provided on the outer wall of the first housing 91, and a corresponding latching groove 921 is provided on the second housing 92. During assembly, the latching protrusion 912 is engaged in the latching groove 921 to achieve the connection between the second housing 92 and the first housing 91. The entire connection process is simple and convenient.

[0064] The clearance hole 911 can limit the position of the second electrode 3 in the axial direction of the base 1, ensuring the position of the second electrode 3 and making the second electrode 3 stably fixed in the axial and circumferential directions; in addition, the clearance hole 911 also limits the installation position of the second electrode 3, thereby facilitating the assembly of the second electrode 3.

[0065] Furthermore, the heating assembly also includes a lead wire 31, which is located outside the first housing 91. One end of the lead wire 31 is electrically connected to the portion of the second electrode 3 located outside the first housing 91, and the other end of the lead wire 31 extends along the axial direction of the substrate 1.

[0066] In this embodiment, the lead wire 31 is used for current conduction of the complete circuit including the first electrode 2 and the second electrode 3. One end of the lead wire 31 is connected to the second electrode 3 by welding. Specifically, part of the structure of the second electrode 3 is located outside the first housing 91, thereby providing a favorable installation position for welding the lead wire 31 and keeping it away from high temperature areas to avoid the problem of the weld point falling off. The other end of the lead wire 31 extends along the axial direction of the base 1. The lead wire 31 can be a rigid or flexible wire. Those skilled in the art can make a targeted selection based on the specific needs of the application.

[0067] Optionally, the heating assembly also includes a heating film 4 and a temperature measuring element 5 disposed on the surface of the substrate 1. The temperature measuring element 5 is attached to the surface of the heating film 4. The first housing 91 has a notch, the temperature measuring element 5 is located in the notch, and the gap between the temperature measuring element 5 and the inner wall of the notch is set.

[0068] In this embodiment, the substrate 1 can be made of infrared-transmitting glass tubes, quartz tubes, etc. An electric current excites the infrared electrothermal material of the heating film 4, causing it to generate heat and radiate infrared rays. Infrared rays have good penetration and thermal effect, enabling rapid heating of the aerosol-generating matrix in the aerosol-generating product, achieving rapid heating and uniform heating. Additionally, a temperature sensing element 5 is provided on the heating film 4. The working head of the temperature sensing element 5 is attached to the heating film 4 to monitor the temperature of the heating film 4 in real time, preventing excessive temperature rise and thermal runaway that could damage the heating component. Those skilled in the art will understand that the heating film 4 can also be made of general electrothermal materials.

[0069] Please refer to Figure 7. Further, a strip-shaped first notch 913 is provided on the first housing 91. The temperature measuring element 5 is located in the first notch 913 and the gap between the temperature measuring element 5 and the inner wall of the first notch 913 is set to ensure that the working end and the lead end of the temperature measuring element 5 do not contact the first housing 91, thereby avoiding the surface of the first housing 91 from affecting the temperature measurement result and effectively improving the accuracy of temperature measurement by the temperature measuring element 5.

[0070] Please refer to Figure 8. Optionally, the heating assembly also includes a heat insulation element 6, which is disposed between the base 1 and the first housing 91.

[0071] In this embodiment, the heat insulation component 6 is made of aerogel. Aerogel has a very low density, which does not significantly increase the weight of the entire heating assembly. Furthermore, aerogel maintains stable performance under various conditions. In addition, aerogel has extremely low thermal conductivity, making it an excellent heat insulation material. In this embodiment, the heat insulation component 6 covers the outside of the heating film 4 and is disposed between the heating film 4 and the first housing 91. The heat insulation component 6 serves to achieve heat insulation, avoiding or reducing heat exchange between the heating film 4 and the outside, and ensuring the stability of the internal temperature field of the heating chamber 11.

[0072] Furthermore, the heat insulation element 6 is a non-enclosed structure, and the gap between the first and last ends of the heat insulation element 6 forms a second notch 61. The second notch 61 extends along the axial direction of the substrate 1, and the temperature sensing element 5 is located inside the second notch 61.

[0073] The second notch 61 prevents the temperature sensing element 5 from contacting the heat insulation element 6 and also prevents the heat insulation element 6 from affecting the temperature measurement results, thereby further improving the accuracy of temperature measurement by the temperature sensing element 5.

[0074] Please refer to Figure 9. In this embodiment, the heat insulation component 6 and the temperature measuring element 5 are bound to the substrate 1 by wrapping with high-temperature tape 7. The high-temperature tape 7 can be set to be wrapped with a single turn or multiple turns, which can be set according to the preset fixed connection strength. The high-temperature tape 7 is easy to use and is applied to the high-temperature area of ​​the heating component, which can prevent the bonding ability from failing under high temperature conditions and ensure the stability of the fixation.

[0075] Please refer to Figure 9 for further details. Optionally, sealing rings 8 are respectively fitted at both ends of the substrate 1. The sealing rings 8 are used to prevent the aerogel particles of the heat insulation component 6 from entering the heating chamber 11 inside the substrate 1.

[0076] In this embodiment, the sealing ring 8 is made of silicone. Silicone has the characteristics of anti-aging and stable performance. In addition, the silicone sealing ring 8 has a wide temperature range and is suitable for various extreme temperature environments. It also has strong corrosion resistance, a long service life, and is environmentally friendly and will not cause pollution.

[0077] Two sealing rings 8 are respectively fitted on both ends of the substrate 1. The sealing rings 8 can prevent the gas in the heating chamber 11 inside the substrate 1 from escaping, and at the same time prevent aerogel particles from entering the heating chamber 11 inside the substrate 1, so as to avoid impurities from being mixed into the aerosol.

[0078] The second aspect of this embodiment also relates to an aerosol generating apparatus, which includes a housing and a heating component, wherein the heating component is disposed inside the housing.

[0079] The aerosol generation device based on this heating component can be applied to various aerosol generation applications, not only reducing costs but also further simplifying assembly. The outer shell can be manufactured using injection molding to ensure stable operation of the heating component inside.

[0080] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heating assembly, characterized in that, include: The matrix (1) is tubular; The first electrode (2) is disposed on the surface of the substrate (1) and surrounding the substrate (1); The second electrode (3) is an elastic conductive element. The elastic force of the second electrode (3) can clamp the substrate (1) so as to maintain contact with the first electrode (2) to form an electrical connection.

2. The heating assembly according to claim 1, characterized in that, The second electrode (3) has at least two portions that contact the first electrode (2).

3. The heating assembly according to claim 2, characterized in that, The distance between the at least two locations that are in contact with the first electrode (2) and the center point of the substrate (1) is less than the radius of the substrate (1).

4. The heating assembly according to claim 1, characterized in that, The second electrode (3) is wavy along the circumference of the substrate (1).

5. The heating assembly according to claim 1, characterized in that, The second electrode (3) has multiple contact points, which are distributed along the circumferential direction of the substrate (1), and the maximum distance between the multiple contact points in the circumferential direction of the substrate (1) is greater than or equal to 1 / 2 of the circumference of the substrate (1).

6. The heating assembly according to claim 1, characterized in that, The contact area between the second electrode (3) and the first electrode (2) is provided with a coating.

7. The heating assembly according to claim 1, characterized in that, The heating assembly also includes a first housing (91), which is sleeved on the outside of the base (1). The first housing (91) has a clearance hole (911) on it, and a portion of the structure of the second electrode (3) passes through the clearance hole (911) and keeps in contact with the first electrode (2).

8. The heating assembly according to claim 7, characterized in that, The heating assembly also includes a lead wire (31) located outside the first housing (91), with one end of the lead wire (31) electrically connected to the portion of the second electrode (3) located outside the first housing (91), and the other end of the lead wire (31) extending along the axial direction of the substrate (1).

9. The heating assembly according to claim 7, characterized in that, The heating assembly also includes a heat insulation element (6), which is disposed between the base (1) and the first housing (91).

10. The heating assembly according to claim 7, characterized in that, The heating assembly also includes a heating film (4) and a temperature measuring element (5) disposed on the surface of the substrate (1). The temperature measuring element (5) is attached to the surface of the heating film (4). The first housing (91) is provided with a first notch (913). The temperature measuring element (5) is located in the first notch (913), and the gap between the temperature measuring element (5) and the inner wall of the first notch (913) is provided.

11. The heating assembly according to claim 1, characterized in that, The second electrode (3) is a flexible, non-closed structure formed by bending a conductive wire.

12. The heating assembly according to claim 1, characterized in that, The conductive element is formed by bending a conductive wire.

13. An aerosol generating device, characterized in that, The aerosol generating device includes a housing and a heating component as described in any one of claims 1-12, wherein the heating component is disposed inside the housing.

Images