Heating assembly and aerosol-generating device

Abstract

The utility model discloses heat generating assembly is developed, include: chamber, conductive heating track, be located in the chamber, when aerosol generating product inserts chamber after conductive heating track corresponding aerosol generating product's smoking segment, include: first track, second track is opposite to first track along the first direction and is arranged, and the first direction is the axial or radial of heat generating assembly, capacitance detection circuit is connected with conductive heating track, and first track and second track constitute electrode pair, and capacitance detection circuit detects the capacitance of the smoking segment corresponding conductive heating track through conductive heating track, heating circuit is connected with conductive heating track, circuit switching switch, one end of circuit switching switch is connected with conductive heating track, and the other end of circuit switching switch can switch between capacitance detection circuit and heating circuit. The above -mentioned scheme can realize heating and sensing integration. Also disclose aerosol generating device.

Description

Technical Field

[0001] This utility model relates to the field of novel tobacco products technology, specifically to a heating component and an aerosol generating device. Background Technology

[0002] In recent years, against the backdrop of a global wave of tobacco control and increased health awareness, the market share of traditional cigarettes has gradually shrunk, while new tobacco products have shown a rapid development trend. New tobacco products mainly include smokeless tobacco products, e-cigarettes, and heated tobacco products (HNB). Among them, heated tobacco products, due to their ability to provide an experience close to that of real cigarettes, have received high attention from major tobacco companies and have become a long-term strategic focus for the industry.

[0003] However, existing heated tobacco products still face significant challenges in terms of consistent user experience, mainly due to the following reasons:

[0004] (1) Differences in the cigarette itself: The content of the atomizing agent (mainly water and glycerol / glycerin) in the cigarette fluctuates greatly due to various factors. For example: a) Differences in production process: The density of the filling material in different batches of cigarettes is not uniform; b) Differences in brand formula: The proportions of water and glycerin added to cigarettes of different brands are different; c) The influence of environmental humidity: The production and storage environment as well as the storage environment after opening can lead to changes in the moisture content of the cigarette (such as moisture absorption). These factors result in significant differences in the original content of aerosol that can be generated in different cigarettes and even the same cigarette under different conditions.

[0005] (2) Lack of effective state detection methods: Most aerosol generating devices on the market currently adopt an open-loop control strategy, that is, heating according to a preset, fixed temperature-time curve. This strategy cannot detect the differences between the cigarettes mentioned above, nor can it detect whether the cigarettes have been used or are severely damp, thus leading to at least one of the following situations: inconsistent smoke output of different cigarettes; significant reduction in smoke output in the later puffs of the same cigarette as the effective components are consumed during smoking; inability to identify non-standard cigarettes or foreign objects inserted, posing a safety hazard.

[0006] Capacitive sensing technology is a non-contact measurement method based on the dielectric properties of materials. (Reference) Figure 1 The capacitor includes two parallel metal electrode plates (i.e., the first metal electrode plate 101 and the second metal electrode plate 102). The theoretical formula for calculating the capacitor is: C = Where C represents the capacitance value. Let S represent the dielectric constant between the plates of a capacitor, S represent the area of ​​the plates, and d represent the distance between the plates. When the area S and the distance d between the capacitor plates are fixed, the capacitance C changes only with respect to the dielectric constant of the dielectric material filling the space between the plates. Therefore, the characteristics of the dielectric can be deduced by measuring the capacitance value. In the capacitor, one metal plate is the excitation electrode, and the other is the detection electrode. When a certain voltage excitation signal is applied to the excitation electrode, an electric field appears between the two plates. The electric field lines penetrate the test piece 103 within the electric field, generating an induced electric displacement field inside the test piece 103. This affects the charge distribution on the capacitor plates, causing a change in the capacitance value between the excitation and detection electrodes. When the dielectric (i.e., the test piece 103) within the electric field changes, its dielectric constant changes, causing a change in the charge distribution on the electrodes, ultimately resulting in a change in the detection capacitance value.

[0007] Common aerosol components and their dielectric constants are as follows: air has a dielectric constant of 1, paper has a relative dielectric constant of 2.5, glycerol / glycerin has a relative dielectric constant of 47, and water has a relative dielectric constant of 80. The aerosol in heated non-combustible cigarettes mainly originates from the atomization of moisture and aerosol-generating agents, including glycerol, glycerol, and / or propylene glycol. The dielectric constant of the vapor mixture produced by heating heated non-combustible cigarettes increases significantly with increasing aerosol concentration. Therefore, detecting changes in the dielectric constant in the region where the cigarette is located using a capacitive sensor becomes an effective technical approach for monitoring aerosol content.

[0008] Capacitive sensors have various electrode configurations, including flat, arc, spiral, ring, and interdigitated shapes (see...). Figures 2-6 (This can be selected based on different application scenarios and testing requirements. Specifically,) Figure 2 The structure of the flat plate capacitive sensor 01 is shown, including a first flat plate electrode plate 011 and a second flat plate electrode plate 012 arranged at relative intervals. Figure 3 An arc-shaped capacitive sensor 02 is shown, including a first arc-shaped electrode plate 021 and a second arc-shaped electrode plate 022 arranged at relatively intervals. Figure 4 The diagram shows a spiral capacitive sensor 03, including a first spiral electrode plate 031 and a second spiral electrode plate 032; in a ring-shaped capacitive sensor, a circular ring is used as an example. Figure 5 A circular capacitive sensor 04 is shown, including a first circular electrode plate 041 and a second circular electrode plate 042 disposed opposite to each other in the axial direction; Figure 6 The interdigital capacitive sensor 05 is shown, including a first interdigital electrode 051 and a second interdigital electrode 052.

[0009] In the prior art, for example, patent publication number CN117652713A discloses a heating assembly for integrated capacitance detection. This solution arranges the electrode of the capacitance sensor and the heating trajectory of the heating element in an intersecting manner, wherein the heating trajectory itself can serve as an electrode of the capacitor, but a separate metal electrode dedicated to capacitance detection is still required (such as the electrode connected to L3 in this patent).

[0010] The shortcomings of the aforementioned existing technology are: its independent capacitor plates are only used for sensing functions and do not have a heating function, thus taking up layout space and reducing heating efficiency. In addition, this solution has limited functionality and cannot achieve zoned heating control based on capacitance detection, with limited sensing dimensions and control precision.

[0011] Therefore, there is an urgent need in this field to develop an intelligent heating system capable of sensing the status of cigarettes in real time (not only the total amount, but also the spatial distribution). The primary prerequisite for such a system is the integration of a detection device that can accurately, reliably, and multidimensionally sense the cigarettes without affecting heating efficiency. Utility Model Content

[0012] This invention proposes a heating component to solve the above-mentioned technical problems.

[0013] In a first aspect, embodiments of this utility model disclose a heating component, comprising:

[0014] A chamber used to contain aerosol-generated products;

[0015] A conductive heating track is located within the chamber. When the aerosol-generating product is inserted into the chamber, the conductive heating track corresponds to the smoke-generating section of the aerosol-generating product, including:

[0016] First track;

[0017] The second track is arranged opposite to the first track along a first direction, which is the axial or radial direction of the heating element;

[0018] The capacitance detection circuit is electrically connected to the conductive heating track. The first track and the second track form an electrode pair. The capacitance detection circuit detects the capacitance of the smoke-generating section corresponding to the conductive heating track through the conductive heating track.

[0019] The heating circuit is electrically connected to the conductive heating track and is used to control the conductive heating track to heat the aerosol to generate the product.

[0020] A circuit switching switch has one end electrically connected to the conductive heating track, and the other end can switch between the capacitor detection circuit and the heating circuit to electrically connect the conductive heating track to either the capacitor detection circuit or the heating circuit.

[0021] By adopting the above technical solution, the heating component of this utility model can switch between capacitance detection and heating functions by setting a circuit switching switch. This makes full use of the space of the heating component, and capacitance detection can be performed while ensuring high heating efficiency. The conductive heating track is aligned with the smoke-generating section of the aerosol-generating product, which also helps to achieve accurate detection of the capacitance of the smoke-generating section.

[0022] According to another specific embodiment of the present invention, the circuit switching switch is a multi-way switching switch. The first track includes a first lead, and the second track includes a second lead. Both the first lead and the second lead are electrically connected to the first end of the multi-way switching switch. The second end of the multi-way switching switch is electrically connected to a capacitor detection circuit or a heating circuit. The capacitor detection circuit includes an excitation end and a detection end.

[0023] The first lead and the second lead can be synchronously connected to the capacitor detection circuit via a multiplexer; or, at least one of the first lead and the second lead can be electrically connected to the heating circuit via a multiplexer.

[0024] When the first lead and the second lead are simultaneously electrically connected to the capacitor detection circuit, the first lead is electrically connected to the excitation terminal, and the second lead is electrically connected to the detection terminal.

[0025] According to another specific embodiment of this utility model, the detection end includes a first detection end and a second detection end, and the conductive heating track further includes:

[0026] The third track is arranged opposite to the first track along the first direction. The third track has a third lead, which is electrically connected to the first end of the multiplexer.

[0027] When the conductive heating track is electrically connected to the capacitor detection circuit, the third lead is electrically connected to the excitation end, the first lead is electrically connected to the first detection end, and the second lead is electrically connected to the second detection end.

[0028] According to another specific embodiment of the present invention, the third track is located between the first track and the second track in the first direction.

[0029] According to another specific embodiment of the present invention, the first track and the second track are circular tracks, and the first track and the second track are arranged opposite to each other along the axial direction of the chamber. The chamber includes a smoke-generating section accommodating area, which is used to accommodate the smoke-generating section. The smoke-generating section accommodating area extends from at least a portion of the area enclosed by the first track across the area between the first track and the second track along the axial direction of the chamber to at least a portion of the area enclosed by the second track.

[0030] According to another specific embodiment of the present invention, the first track and the second track are arc-shaped tracks, and the first track and the second track are arranged opposite to each other along the radial direction of the chamber. The area enclosed by the first track and the second track is used to accommodate the smoke-generating section.

[0031] Alternatively, the first and second tracks are helical tracks, nested together to form a double helix structure, with the internal space of the double helix structure used to accommodate the smoke-generating section.

[0032] According to another specific embodiment of the present invention, the first track and the second track are staggered on the side wall of the chamber, so that the first track and the second track form an interdigitated structure.

[0033] According to another specific embodiment of the present invention, the heating component further includes an internal heating element, a first track is disposed on the side wall of the chamber, and a second track is disposed on the surface of the internal heating element; when the aerosol generating product is inserted into the chamber, the internal heating element is located inside the smoke generating section, and the first track surrounds the smoke generating section.

[0034] According to another specific embodiment of the present invention, when the conductive heating track is electrically connected to the heating track, the first track and the second track are connected in parallel.

[0035] Secondly, embodiments of this utility model disclose a heating component control method for controlling the heating component to heat an aerosol-generating product or detecting the capacitance of the smoke-generating section of the aerosol-generating product. The heating component is the heating component of any embodiment of the first aspect, and the heating component control method includes:

[0036] Control the conductive heating track to connect to the capacitance detection circuit to detect the current capacitance value of the cavity area corresponding to the conductive heating track;

[0037] The presence of aerosol-generating products in the chamber is determined based on the current capacitance value. If aerosol-generating products are present in the chamber, the conductive heating track is switched to be electrically connected to the heating circuit, and the conductive heating track is controlled to heat the smoke-generating section of the aerosol-generating products. Otherwise, the conductive heating track is kept electrically connected to the capacitance detection circuit, and the conductive heating track is controlled to detect the current capacitance value at a preset frequency.

[0038] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0039] According to another specific embodiment of this utility model, if there is an aerosol-generating product in the chamber, the conductive heating track is switched to be electrically connected to the heating circuit, and the conductive heating track is controlled to heat the smoke-generating section of the aerosol-generating product, specifically including:

[0040] If there are aerosol-generating products in the chamber, determine the type of aerosol-generating products based on the current capacitance value;

[0041] Determine the corresponding preset heating curve based on the type of aerosol-generated product;

[0042] The conductive heating track is controlled to heat the aerosol to generate the product according to the preset heating curve.

[0043] According to another specific embodiment of the present invention, it further includes:

[0044] The conductive heating track is controlled by pulse width modulation to heat the aerosol to generate the product. The heating process includes multiple heating periods and multiple intermittent periods that alternate in time.

[0045] During the heating period, the conductive heating track is electrically connected to the heating circuit, and the conductive heating track heats the aerosol to generate the product; during the intermittent period, the conductive heating track is switched to be electrically connected to the capacitance detection circuit, and the conductive heating track detects the capacitance of the smoke-generating section.

[0046] According to another specific embodiment of this utility model, controlling the heating of the smoke-generating section of the aerosol-generated product by the conductive heating track specifically includes:

[0047] The aerosol product is heated to a predetermined power, and the real-time capacitance value of the corresponding smoke-generating section is detected multiple times within a predetermined time by passing through the conductive heating track to determine the rate of decrease of the real-time capacitance value.

[0048] Determine whether the descent rate is within the preset normal range; if yes, control the conductive heating track to continue heating the aerosol-generated product at a predetermined power; if no, when the descent rate is lower than the lower limit of the preset normal range, control the conductive heating track to heat the aerosol-generated product at a power higher than the predetermined power, and when the descent rate is higher than the upper limit of the preset normal range, control the conductive heating track to heat the aerosol-generated product at a power lower than the predetermined power.

[0049] According to another specific embodiment of the present invention, it further includes:

[0050] During the heating process, the capacitance of the smoke-generating section is detected multiple times through the conductive heating track. When the capacitance of the smoke-generating section is detected to be outside the preset suction range, the heating of the aerosol-generated product is stopped.

[0051] According to another specific embodiment of the present invention, it further includes:

[0052] The aerosol product is heated to a predetermined power, and the capacitance value of multiple different smoke-generating areas in the smoke-generating section is measured multiple times during the heating process.

[0053] The heating power of the conductive track corresponding to each smoke-generating area is adjusted according to the capacitance value detected for each smoke-generating area.

[0054] Thirdly, embodiments of this utility model disclose a heating element control device for controlling the heating element to heat the aerosol generating product or detecting the capacitance of the smoke-generating section of the aerosol generating product. The heating element is the heating element in any of the embodiments of the first aspect described above. The heating element control device includes:

[0055] The capacitance detection module is used to control the conductive heating track to connect to the capacitance detection circuit in order to detect the current capacitance value of the cavity area corresponding to the conductive heating track.

[0056] The circuit control module is used to determine whether there is an aerosol-generating product in the chamber based on the current capacitance value. If there is an aerosol-generating product in the chamber, the conductive heating track is switched to be electrically connected to the heating circuit, and the conductive heating track is controlled to heat the smoke-generating section of the aerosol-generating product. Otherwise, the conductive heating track is kept electrically connected to the capacitance detection circuit, and the conductive heating track is controlled to detect the current capacitance value at a preset frequency.

[0057] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0058] Fourthly, an embodiment of the present invention discloses an electronic device, which includes a processor and a memory. The memory stores at least one instruction, which, when executed by the processor, implements the heating component control method in any of the embodiments of the second aspect.

[0059] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0060] Fifthly, embodiments of this utility model disclose a computer-readable storage medium storing at least one instruction, which, when executed, implements the heating component control method in any of the embodiments of the second aspect.

[0061] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0062] In a sixth aspect, embodiments of the present invention disclose an aerosol generating device, comprising: a heating component as described in any of the embodiments of the first aspect; or, a heating component control device as described in the embodiments of the third aspect.

[0063] By adopting the above technical solution, the aerosol generating device of this utility model uses the aforementioned heating component. By setting a circuit switching switch, the conductive heating track can be switched between capacitance detection and heating functions. This fully utilizes the space of the heating component, ensuring high heating efficiency while also performing capacitance detection. Aligning the conductive heating track with the smoke-generating section of the aerosol generating product also facilitates accurate detection of the capacitance in the smoke-generating section. Furthermore, through the aforementioned heating component, while ensuring high heating efficiency, capacitance detection can determine whether the aerosol generating product has been inserted into the chamber, and the heating method can be adjusted by detecting the capacitance in the smoke-generating section, achieving even more efficient heating. Attached Figure Description

[0064] Figure 1 This diagram shows the electric field line distribution of a parallel-plate capacitor.

[0065] Figure 2 A schematic diagram of the electrode plate structure of a flat plate capacitive sensor is shown.

[0066] Figure 3 A schematic diagram of the structure of the arc-shaped capacitive sensor electrode plate is shown.

[0067] Figure 4 A schematic diagram of the structure of the electrode plate of the spiral capacitance sensor is shown.

[0068] Figure 5 A schematic diagram of the structure of the electrode plate of the circular capacitive sensor is shown.

[0069] Figure 6 A schematic diagram of the structure of the electrode plate of the interdigital capacitive sensor is shown.

[0070] Figure 7 This diagram shows a structural schematic of the heating component in one embodiment of the present invention;

[0071] Figure 8 This diagram illustrates the structure of the heating component in another embodiment of the present invention.

[0072] Figure 9 This diagram shows a structural schematic of the heating component in yet another embodiment of the present invention;

[0073] Figure 10 This diagram shows a structural schematic of the heating component in another embodiment of the present invention;

[0074] Figure 11This diagram shows a structural schematic of the heating component in another optional embodiment of the present invention;

[0075] Figure 12 This diagram illustrates the structure of the heating component in another optional embodiment of the present invention.

[0076] Figure 13 This diagram illustrates the flow chart of the heating component control method in an embodiment of the present invention. Figure 1 ;

[0077] Figure 14 This diagram illustrates the flow chart of the heating component control method in an embodiment of the present invention. Figure 2 ;

[0078] Figure 15 This diagram illustrates the flow chart of the heating component control method in an embodiment of the present invention. Figure 3 ;

[0079] Figure 16 This diagram illustrates the flow chart of the heating component control method in an embodiment of the present invention. Figure 4 ;

[0080] Figure 17 This diagram illustrates the flow chart of the heating component control method in an embodiment of the present invention. Figure 5 ;

[0081] Figure 18 This diagram illustrates the flow chart of the heating component control method in an embodiment of the present invention. Figure 6 ;

[0082] Figure 19 This diagram shows the structure of the heating component control device in an embodiment of the present invention.

[0083] Figure 20 A schematic diagram of the electronic device in an embodiment of this utility model is shown.

[0084] Symbol Explanation: First metal electrode plate 101; Second metal electrode plate 102; Test piece 103; Flat plate capacitance sensor 01; First flat plate electrode plate 011; Second flat plate electrode plate 012; Arc-shaped capacitance sensor 02; First arc-shaped electrode plate 021; Second arc-shaped electrode plate 022; Spiral capacitance sensor 03; First spiral electrode plate 031; Second spiral electrode plate 032; Circular ring capacitance sensor 04; First circular ring electrode plate 041; Second circular ring electrode plate 042 Interdigital capacitive sensor 05; First interdigital electrode 051; Second interdigital electrode 052; First annular track 201; Second annular track 202; First arc track 301; Second arc track 302; First spiral track 401; Second spiral track 402; First interdigital track 501; Second interdigital track 502; First tubular track 602; Second heating needle track 601; Upper annular track 901; Middle annular track 902; Lower annular track 903. Detailed Implementation

[0085] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0086] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0087] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0088] The term "aerosol-generating article" includes materials that provide volatile components when heated, and may include any tobacco-containing material, such as one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. "Aerosol-generating article" may also include other non-tobacco products that may or may not contain nicotine.

[0089] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0090] In a first aspect, embodiments of this utility model disclose a heating component, including a chamber, a conductive heating track, a capacitance detection circuit, a heating circuit, and a circuit switching switch. The chamber is used to accommodate an aerosol-generating product. The conductive heating track is disposed within the chamber, and when the aerosol-generating product is inserted into the chamber, the conductive heating track corresponds to the smoke-generating section of the aerosol-generating product. The conductive heating track includes a first track and a second track, the second track being disposed opposite to the first track along a first direction, which is either the axial or radial direction of the heating component. The capacitance detection circuit is electrically connected to the conductive heating track, and the first and second tracks form an electrode pair. The capacitance detection circuit detects the capacitance of the smoke-generating section corresponding to the conductive heating track through the conductive heating track. The heating circuit is electrically connected to the conductive heating track and is used to control the conductive heating track to heat the aerosol-generating product. One end of the circuit switching switch is electrically connected to the conductive heating track, and the other end of the circuit switching switch can switch between the capacitance detection circuit and the heating circuit to electrically connect the conductive heating track to either the capacitance detection circuit or the heating circuit.

[0091] Through the above technical solution, in the heating component of this utility model, the first and second tracks can both serve as heating elements to heat the smoke-generating section of the aerosol-generating product and form an electrode pair to detect the capacitance of the smoke-generating section in conjunction with the capacitance detection circuit. This achieves a high degree of integration between the heating and capacitance detection functions, effectively reducing the number of components in the heating component, simplifying the overall structure, and resulting in a compact layout that does not encroach on heating space, ensuring high heating efficiency. Furthermore, the same hardware enables both heating and sensing detection functions, allowing for functional reuse and helping to reduce costs. The circuit switching switch allows for flexible and reliable switching between the conductive heating track and the capacitance detection circuit. It can accurately determine the presence of aerosol-generating products in the chamber before initiating heating, fundamentally avoiding ineffective heating when there are no products, significantly improving safety and energy efficiency. On the other hand, it can also detect the capacitance of the smoke-generating section during heating and control the heating method based on the detected capacitance, thereby helping to improve aerosol generation and enhancing the user experience.

[0092] Further, in the above embodiments, the circuit switching switch is a multiplexer switch. The first rail includes a first lead, and the second rail includes a second lead. Both the first and second leads are electrically connected to a first terminal of the multiplexer switch, and the second terminal of the multiplexer switch is electrically connected to a capacitance detection circuit or a heating circuit. The capacitance detection circuit includes an excitation terminal and a detection terminal. The first and second leads can be synchronously electrically connected to the capacitance detection circuit via the multiplexer switch; or, at least one of the first and second leads can be electrically connected to the heating circuit via the multiplexer switch. When the first and second leads are simultaneously electrically connected to the capacitance detection circuit, the first lead is electrically connected to the excitation terminal, and the second lead is electrically connected to the detection terminal.

[0093] This configuration allows for switching between the heating function and capacitance detection function of the heating component via a circuit switch. Specifically, the first and second leads can be simultaneously switched to be electrically connected to the capacitance detection circuit. In this case, the conductive heating track is electrically connected to the capacitance detection circuit, and the first and second tracks form an electrode pair, enabling capacitance detection. This can be done by detecting the capacitance within the chamber to determine the presence of aerosol-generating products, or by detecting the capacitance of the smoke-generating section after an aerosol-generating product has been inserted into the chamber. Alternatively, at least one of the first and second leads can be switched to be electrically connected to the heating circuit. In this case, the conductive heating track is not connected to the capacitance detection circuit, and the conductive heating track only performs the heating function, not the capacitance detection function. Specifically, when the conductive heating track performs its heating function, it can be that only the first lead is electrically connected to the heating circuit, so that the first track can heat the aerosol-generated product independently while the second track is not heated; or, it can be that only the second lead is electrically connected to the heating circuit, so that the second track can heat the aerosol-generated product independently while the first track is not heated; or, it can be that both the first and second leads are electrically connected to the heating circuit, in which case both the first and second tracks are heated. The first and second tracks can heat different areas of the smoke-generating section respectively, which helps to control the degree of smoke generation in different areas of the smoke-generating section, thereby improving the user experience.

[0094] Furthermore, in this embodiment, the first track further includes a fourth lead, and the second track further includes a fifth lead, with the fourth and fifth leads respectively grounded.

[0095] Furthermore, in the above embodiments, reference is made to... Figure 7 The first and second tracks are annular tracks, which can be located on the inner or outer wall of the chamber. The first track is designated as the first annular track 201, and the second track as the second annular track 202. Figure 7This diagram illustrates a composite heating element with an upper and lower annular arrangement. The heating element can be made of a ceramic substrate or a metal substrate, and its surface has two independent and symmetrically distributed annular heating tracks (i.e., a first annular track 201 and a second annular track 202). The first track and the second track are along the axial direction of the chamber (e.g., along the chamber's axis). Figure 7 The chamber is arranged relative to each other in the X direction. The chamber includes a smoke-generating section receiving area for receiving the smoke-generating section. The smoke-generating section receiving area extends from at least a portion of the area enclosed by the first track across the area between the first track and the second track along the axial direction of the chamber and extends to at least a portion of the area enclosed by the second track.

[0096] The first annular track 201 has leads L1 and L2 at both ends, and the second annular track 202 has leads L3 and L4 at both ends. For example, when the conductive heating track is electrically connected to the heating circuit, an external power source can apply voltage to L1 and L2 through the heating circuit, causing current to flow through the first annular track 201 and heating it independently. Similarly, energizing L3 and L4 can cause the second annular track 202 to heat up independently. Furthermore, the two tracks can also be energized simultaneously for coordinated operation. This configuration allows for segmented heating of the smoke-generating section. Furthermore, a switching circuit switch (e.g., controlled by a control unit MCU in an external control circuit) can disconnect the heating circuit and connect the leads of the first annular track 201 (e.g., L1) and the leads of the second annular track 202 (e.g., L3) to the capacitance detection circuit. For example, L1 can be electrically connected to the excitation terminal of the capacitance detection circuit, and L3 can be electrically connected to the detection terminal of the capacitance detection circuit. The capacitance detection circuit can refer to, for example, a capacitance detection chip. In this case, the two annular heating tracks form an annular capacitance sensor arranged vertically opposite each other. The detection electric field of this annular capacitance sensor can effectively cover the cross-sectional area of ​​the aerosol-generated product located in the chamber, thereby enabling the detection of its overall dielectric constant change.

[0097] Furthermore, in another embodiment, reference is made to... Figure 8 The first and second tracks are arc-shaped tracks, and the first and second tracks are along the radial direction of the chamber (e.g., Figure 8The first and second tracks are arranged opposite each other in the Y direction of the chamber, and the area enclosed by the first and second tracks is used to accommodate the smoke-generating section. The first and second tracks can be set on the inner or outer side wall of the chamber. The first track is designated as the first arc-shaped track 301, and the second track as the second arc-shaped track 302. The first and second arc-shaped tracks 301 and 302 are arranged in a symmetrical arc shape. When the conductive heating track is electrically connected to the capacitance detection circuit, the first and second arc-shaped tracks 301 and 302 together form a left-right enclosing arc-shaped capacitance sensor. The first and second arc-shaped tracks 301 and 302 can each have two leads, and both support independent heating, coordinated heating, and capacitance detection. Their specific principles are similar to... Figure 7 The embodiments shown are the same and will not be repeated here.

[0098] Furthermore, in another embodiment, reference is made to... Figure 9 The first and second tracks are helical tracks, nested together to form a double helix structure. The internal space of the double helix structure is used to accommodate the smoke-generating section. The first and second tracks can be located on the inner or outer sidewall of the chamber. The first track is designated as the first helical track 401, and the second track as the second helical track 402. On the radial cross-section of the chamber, the first helical track 401 and the second helical track 402 are arranged opposite to each other. In this embodiment, the first helical track 401 and the second helical track 402 together constitute a helical capacitance sensor. Each track also has two leads and supports independent heating, coordinated heating, and capacitance detection. Its specific principle is similar to... Figure 7 The illustrated embodiment is the same and will not be described again here. By setting the first and second tracks as spiral tracks, it helps to enhance the uniformity of the detection electric field during capacitance detection, resulting in smaller detection errors and more accurate capacitance detection of the chamber or smoke-generating section.

[0099] Furthermore, in another embodiment, reference is made to... Figure 10 The first and second tracks are staggered on the sidewalls of the chamber, forming an interdigitated structure. The first and second tracks can be located on the inner or outer sidewalls of the chamber. The first track is designated as the first interdigitated track 501, and the second interdigitated track as 502. The first interdigitated track 501 includes tracks along the axial direction (e.g.,...). Figure 10The first interdigital track 501 includes multiple first extensions 5011 extending in the direction X, which are spaced apart circumferentially within the chamber, forming a first gap between adjacent first extensions 5011. The first interdigital track 501 also includes multiple first connecting portions 5012, located at the bottom end of each first extension 5011 and connecting adjacent first extensions 5011. The second interdigital track 502 includes multiple second extensions 5021 extending axially in the direction X, which are spaced apart circumferentially within the chamber, forming a second gap between adjacent second extensions 5021. The second interdigital track 502 also includes multiple second connecting portions 5022, located at the top end of each second extension 5021 and connecting adjacent second extensions 5021. The first gap can accommodate the second extension 5021, and the second gap can accommodate the first extension 5011. The first extension 5011 and the second connecting part 5022 are arranged opposite each other along the axial direction X, and the second extension 5021 and the first connecting part 5012 are arranged opposite each other along the axial direction X. In this embodiment, the first interdigital rail 501 and the second interdigital rail 502 together constitute an interdigital electrode capacitance sensor. Each rail also has two leads and supports independent heating, coordinated heating, and capacitance detection. Its specific principle is the same as... Figure 7 The embodiments shown are the same and will not be repeated here.

[0100] Furthermore, the first interdigital track 501 and the second interdigital track 502 have the same shape, so that when the smoke-generating section is heated separately by the first interdigital track 501 and the second interdigital track 502, the area of ​​the smoke-generating section corresponding to different tracks can be more uniform, which helps to balance the heat distribution during heating. When performing capacitance detection, it helps to ensure uniform electric field distribution, thereby achieving more accurate capacitance detection.

[0101] Furthermore, in another embodiment, reference is made to... Figure 11The heating component also includes an internal heating element, which can be, for example, a heating needle. A first track (i.e., a first tubular track 602) is located on the side wall of the chamber (e.g., an inner or outer side wall), and a second track is located on the surface of the internal heating element (i.e., a second heating needle track 601). The first track can be, for example, in the form of a cylindrical metal electrode plate. When the aerosol generating product is inserted into the chamber, the internal heating element is located inside the smoke-generating section, and the first track surrounds the smoke-generating section. With this configuration, during heating, the first tubular track 602 and the second heating needle track 601 can heat the smoke-generating section from both the inner and outer sides, respectively, improving atomization efficiency. During battery detection, they can form a cylindrical electrode capacitance sensor to detect the capacitance of the smoke-generating section. In this embodiment, the first tubular track 602 and the second heating needle track 601 also each have two leads, supporting independent heating, coordinated heating, and capacitance detection. Their specific principles are similar to... Figure 7 The embodiments shown are the same and will not be repeated here.

[0102] Furthermore, in the above embodiments, when the conductive heating rail is electrically connected to the heating rail, the first rail and the second rail are connected in parallel. With this configuration, the first rail and the second rail can be controlled independently, heating different areas of the smoke-generating section separately. More specifically, when the first rail is heating, the second rail may or may not be heated; conversely, when the second rail is heating, the first rail may or may not be heated.

[0103] Furthermore, in the above embodiments, the detection end includes a first detection end and a second detection end, and the conductive heating rail further includes a third rail, which is disposed opposite to the first rail along a first direction. Correspondingly, the third rail is also disposed opposite to the second rail along the first direction. The third rail has a third lead, which is electrically connected to the first end of the multiplexer. Specifically, when the conductive heating rail is electrically connected to the capacitor detection circuit, the third lead is electrically connected to the excitation end, the first lead is electrically connected to the first detection end, and the second lead is electrically connected to the second detection end.

[0104] refer to Figure 12 The following is based on Figure 12 The above implementation method is illustrated using the annular heating track shown as an example (the principle remains the same when the conductive heating track has other shapes). Figure 12 The illustrated embodiments are the same and will not be repeated here. Figure 12 In the illustrated embodiment, the first track is designated as the upper annular track 901, the second track as the lower annular track 903, and the third track as the middle annular track 902. The upper annular track 901 has leads L1 and L2, the lower annular track 903 has leads L5 and L6, and the middle annular track 902 has leads L3 and L4. These three tracks can be electrically connected to a capacitance detection circuit or a heating circuit via their respective leads.

[0105] In this embodiment, the above structure allows for extremely precise and independent temperature control of the upper, middle, and lower sections of the smoke-generating section of the aerosol-generating article. For example, the middle section can be heated separately to initiate aerosol generation, and then the upper and lower sections can be activated as needed.

[0106] In capacitance detection mode, the above structure allows for both one-to-one and one-to-many capacitance detection (e.g., different detection modes can be achieved by switching the control circuit via the MCU). In one-to-one mode, with... Figure 7 The illustrated embodiment is similar. For example, the upper annular track 901 is used as the excitation electrode, and the middle annular track 902 is used as the induction electrode, forming a capacitor unit C1 to detect the capacitance of the upper and middle smoke-generating sections. The upper annular track 901, the middle annular track 902, and the lower annular track 903 can be paired to form electrode pairs, enabling capacitance detection of different smoke-generating sections. In a one-to-many mode, one of the upper annular track 901, the middle annular track 902, and the lower annular track 903 can serve as a common excitation electrode, while the other two serve as separate induction electrodes, thus forming two capacitor units to detect the capacitance of different regions respectively.

[0107] Furthermore, in the above embodiment, the third track is located between the first and second tracks in the first direction. Continuing... Figure 12 Taking the illustrated embodiment as an example, the first direction is axial X, and the third track corresponds to the middle annular track 902. In one-to-many mode capacitance detection, the middle annular track 902 can be used as a common excitation electrode, while the upper annular track 901 and the lower annular track 903 are both used as independent sensing electrodes. With this configuration, a capacitance unit C2 is formed between the common excitation electrode (i.e., the middle annular track 902) and the upper sensing electrode (i.e., the upper annular track 901), and a capacitance unit C3 is formed between the common excitation electrode (i.e., the middle annular track 902) and the lower sensing electrode (i.e., the lower annular track 903). The control unit MCU can simultaneously read the capacitance values ​​of C2 and C3 to obtain the capacitance of the smoke-generating sections in different areas, which helps to control the heating methods of different tracks separately in order to generate aerosols that better meet user needs and improve the user experience.

[0108] Furthermore, by comparing the values ​​of C2 and C3 and their changing trends, the control system can determine the distribution of aerosols along the axial direction (X) of the aerosol-generated product (i.e., the length direction). For example, if the C2 value is detected to be much smaller than the C3 value, it indicates that the aerosol content in the upper part of the aerosol-generated product has significantly decreased (it may have been completely extracted), while the lower part is still relatively abundant. Based on this information, the control system can intelligently shut down or reduce the heating power of the upper annular track 901, while maintaining or increasing the power of the lower annular track 903, thereby achieving unprecedented on-demand zoned heating, avoiding energy waste and local overheating, and maximizing suction efficiency and user experience.

[0109] For example, when the ratio of C2 to C3 is lower than the lower limit of the preset normal capacitor consumption ratio range, it can be considered that the value of C2 is much smaller than the value of C3. When the ratio of C2 to C3 is higher than the upper limit of the preset normal capacitor consumption ratio range, it can be considered that the value of C2 is much larger than the value of C3. At this time, the heating power of the lower annular track 903 can be turned off or reduced accordingly, while maintaining or increasing the power of the upper annular track 901. Here, the preset normal capacitor consumption ratio range represents the capacitor ratio range corresponding to the uniform distribution of consumption in the upper and lower parts of the smoke-generating section. The lower limit of the preset normal capacitor consumption ratio range can be, for example, 0.2-0.4, and the upper limit of the preset normal capacitor consumption ratio range can be, for example, 2.5-5.

[0110] Furthermore, the aforementioned conductive heating tracks can have more than three segments. During capacitance detection, one track can serve as a common excitation electrode, while the remaining segments act as independent sensing electrodes. This configuration creates an independent capacitance sensing unit between the common excitation electrode and each independent sensing electrode, enabling simultaneous, multi-point detection of multiple axial or radial positions of the cigarette, thus obtaining spatial distribution information of aerosol content. For example, it can determine which segment of the cigarette is damp and which has been completely smoked, providing unprecedentedly detailed data for zoned heating control, greatly improving control precision and user experience consistency.

[0111] In the above embodiments, by connecting the conductive heating track of the heating component to the heating circuit, the cigarette can be heated independently or collaboratively in segments. By connecting the conductive heating track of the heating component to the capacitance detection circuit, various configurations of capacitance sensors (such as one-to-one and one-to-many) can be formed. These sensors can be used to detect the insertion state and type of the cigarette, as well as the spatial distribution and real-time changes of aerosol content, enabling multi-dimensional monitoring of the cigarette's status. They can also effectively identify foreign objects in the chamber and facilitate adaptive zoned closed-loop temperature control. Through the above hardware reuse and functional integration, heating and sensing can be integrated without adding additional components. This provides a hardware foundation for the aerosol generation device to achieve closed-loop intelligent temperature control with zoned sensing and heating. It enables precise closed-loop control that "senses where heating is needed and compensates for deficiencies where they are detected," upgrading segmented heating from simple timing control to intelligent control linked to physical states. This greatly improves the consistency, safety, and reliability of the smoking experience.

[0112] Secondly, embodiments of this utility model disclose a method for controlling a heating element, used to control the heating element to heat an aerosol-generating product or to detect the capacitance of the smoke-generating section of the aerosol-generating product, wherein the heating element is the heating element of any embodiment of the first aspect. (See reference) Figure 13 The methods for controlling the heating components include:

[0113] S1: Control the conductive heating track to connect to the capacitance detection circuit to detect the current capacitance value of the cavity area corresponding to the conductive heating track.

[0114] Specifically, the control system for controlling the aforementioned heating components may include a main controller (MCU), a heating circuit (specifically a heating drive circuit, supporting multiple independent outputs and capable of applying drive signals to multiple tracks in the conductive heating track to control the heating of different tracks), a capacitance detection circuit (specifically, for example, a capacitance detection chip, supporting multiple input channels and capable of applying detection signals to multiple tracks in the conductive heating track to detect capacitance), and a circuit switching switch (e.g., a multi-channel switching switch, whose complexity increases with the number of tracks, used to achieve flexible circuit switching). For example, the MCU controls the circuit switching switch to switch the circuit, connecting the conductive heating track to the capacitance detection circuit. The control system can cyclically detect the capacitance value under different plate configurations at certain time intervals (for...). Figure 12 The illustrated embodiment can first use a one-to-one mode and then a one-to-many mode to obtain the current capacitance value.

[0115] S2: Determine whether there is an aerosol-generating product in the chamber based on the current capacitance value. If there is an aerosol-generating product in the chamber, execute S21: Switch the conductive heating track to be electrically connected to the heating circuit and control the conductive heating track to heat the smoke-generating section of the aerosol-generating product. Otherwise, execute S22: Maintain the conductive heating track electrically connected to the capacitance detection circuit and control the conductive heating track to detect the current capacitance value at a preset frequency.

[0116] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0117] Furthermore, in the above embodiments, reference is made to... Figure 14 In step S21 above, if there is an aerosol-generating product in the chamber, the conductive heating track is switched to be electrically connected to the heating circuit, controlling the conductive heating track to heat the smoke-generating section of the aerosol-generating product, specifically including:

[0118] S211: If there are aerosol-generating products in the chamber, determine the type of aerosol-generating products based on the current capacitance value.

[0119] S212: Determine the corresponding preset heating curve according to the type of aerosol-generated product.

[0120] S213: Control the conductive heating track to heat the aerosol to generate the product according to the preset heating curve.

[0121] Once it is determined that a valid cigarette has been inserted into the chamber, the MCU can calculate the overall and / or zoned aerosol content based on the detected capacitance value. Subsequently, the MCU queries the pre-stored optimal heating strategy according to the cigarette type and aerosol content, allocates initial power to each heating trajectory, and starts heating.

[0122] More specifically, by detecting the current capacitance value, it is possible not only to determine whether an aerosol-generating product has been inserted, but also to preliminarily determine the brand or type of the aerosol-generating product by matching the current capacitance value with the pre-stored database in the control system (different brands of cigarettes have slightly different diameters, densities, and formulas, which will lead to differences in their capacitance characteristic values, thus identifying the type of cigarette). Therefore, based on the type of aerosol-generating product, the corresponding preset heating curve can be selected to heat the aerosol-generating product in a more suitable way, thereby generating aerosols with better taste and helping to improve the user experience.

[0123] Furthermore, in the above embodiments, reference is made to... Figure 15 The above-mentioned method for controlling the heating component also includes:

[0124] S3: The conductive heating track is controlled by pulse width modulation to heat the aerosol to generate the product. The heating process includes multiple heating periods and multiple intermittent periods that alternate in time.

[0125] During the heating period, the conductive heating track is electrically connected to the heating circuit, and the conductive heating track heats the aerosol to generate the product; during the intermittent period, the conductive heating track is switched to be electrically connected to the capacitance detection circuit, and the conductive heating track detects the capacitance of the smoke-generating section.

[0126] Specifically, in this embodiment, the heating element is controlled using PWM (Pulse Width Modulation). By adjusting the duty cycle, the power supplied to the heating element can be changed, thereby adjusting the heating power and thus the heating temperature of the heating element. In PWM control, the heating process includes multiple alternating heating periods and multiple intermittent periods. The circuit switching switch can frequently switch the circuit connection mode of the conductive heating track throughout the heating process. By controlling the conductive heating track to heat during the heating period and controlling it to perform capacitance detection during the intermittent period, the heating gap can be fully utilized, allowing the MCU to continuously perform capacitance detection (especially one-to-many mode capacitance detection) to obtain the consumption of smoke-generating substances in the smoke-generating section. It can also monitor the spatial distribution changes of aerosol content in real time, thereby adjusting the duty cycle and controlling the heating power to generate aerosols that better meet user needs.

[0127] Furthermore, in the above embodiments, reference is made to... Figure 16 In the aforementioned step S21, controlling the conductive heating track to heat the smoke-generating section of the aerosol-generated product specifically includes:

[0128] S214: The aerosol-generated product is heated with a predetermined power, and the real-time capacitance value of the corresponding smoke-generating section is detected multiple times within a predetermined time by passing through the conductive heating track, so as to determine the rate of decrease of the real-time capacitance value.

[0129] S215: Determine whether the descent rate is within the preset normal range; if yes, execute S216: Control the conductive heating track to continue heating the aerosol-generated product at a predetermined power; if no, execute S217: When the descent rate is lower than the lower limit of the preset normal range, control the conductive heating track to heat the aerosol-generated product at a power higher than the predetermined power; when the descent rate is higher than the upper limit of the preset normal range, control the conductive heating track to heat the aerosol-generated product at a power lower than the predetermined power.

[0130] Using the above method, if a rapid decrease in the overall capacitance value of the smoke-generating section is detected during multiple tests (i.e., the rate of decrease is higher than the upper limit of the preset normal range), it indicates that a large amount of aerosol is generated. Therefore, the heating power of different tracks in the conductive heating track can be reduced to decrease the amount of aerosol generated subsequently, thus maintaining a stable output of total aerosol. If the overall capacitance value of the smoke-generating section decreases too slowly (i.e., the rate of decrease is lower than the lower limit of the preset normal range), it indicates that a small amount of aerosol is generated. Continuing to heat at the original power may result in a still small amount of aerosol generated subsequently. Therefore, the heating power can be appropriately increased to increase the aerosol release and maintain a stable output of total aerosol. The overall capacitance value of the smoke-generating section can be detected by a capacitance sensor composed of the first and second tracks, which can detect a capacitance value, which is the overall capacitance value of the smoke-generating section; or the overall capacitance value of the smoke-generating section can also be detected by at least three tracks (i.e., the conductive heating track includes at least three tracks, corresponding to...). Figure 12 Multiple capacitance sensors (as shown in the embodiments and similar embodiments) are used for detection. Multiple capacitance values ​​can be detected, and the overall capacitance value of the smoke-generating section can be determined based on the multiple capacitance values. For example, if multiple capacitance values ​​decrease rapidly, it is considered that the overall capacitance value of the smoke-generating section decreases rapidly.

[0131] Furthermore, in the above embodiments, reference is made to... Figure 18 The above-mentioned method for controlling the heating component also includes:

[0132] S5: Heat the aerosol to generate the product with a predetermined power, and during the heating process, repeatedly detect the capacitance value of multiple different smoke-generating areas in the smoke-generating section;

[0133] S6: Adjust the heating power of the conductive track corresponding to each smoke-generating area according to the capacitance value detected for each smoke-generating area.

[0134] Specifically, the heating circuit can independently control different tracks within the conductive heating rails, allowing each track to independently heat different areas of the smoke-generating section. Based on the detected capacitance value corresponding to each smoke-generating area, the on / off state and power level of the heating circuits connected to each track segment can be independently controlled, thereby achieving zoned heating control of the aerosol-generating product. For example, higher power can be applied to areas with lower detected aerosol content, while lower power can be applied to areas with higher aerosol content, to achieve uniform vaporization or targeted compensation in different areas.

[0135] More specifically, with Figure 12Taking the illustrated embodiment as an example, if the capacitance at the lower end of the cigarette (corresponding to the detected capacitance C3) decreases slowly and the capacitance at the upper end (corresponding to the detected capacitance C2) decreases quickly (possibly due to increased heat) through one-to-many mode capacitance detection, the power of the upper annular track 901 can be increased independently, while the power of the lower annular track 903 can be fine-tuned or maintained as is, thereby achieving precise segmental compensation heating and ensuring the consistency of the smoking experience throughout the entire cigarette.

[0136] Furthermore, in the above embodiments, reference is made to... Figure 17 The above-mentioned method for controlling the heating component also includes:

[0137] S4: During the heating process, the capacitance of the smoke-generating section is detected multiple times through the conductive heating track. When the capacitance of the smoke-generating section is detected to be outside the preset suction range, the heating of the aerosol product is stopped.

[0138] Specifically, the capacitance of the smoke-generating section can be checked multiple times during the intervals of the heating process. When the capacitance of the smoke-generating section is detected to be outside the preset suction range, it can be considered that the smoke-generating section in that area has been exhausted, and heating of that area can be stopped. Furthermore, when using... Figure 12 When the heating element in the illustrated embodiment or a similar heating element with at least three tracks is used, the capacitance values ​​of multiple different regions of the smoke-generating section can be detected separately. When these capacitance values ​​are all outside the preset aspirable range, it is considered that the smoke-generating section has been completely consumed, that is, the aerosol-generated product has been completely extracted, and the heating element can be controlled to completely stop heating.

[0139] Furthermore, in the above embodiments, when controlling the heating power of different areas based on the detected capacitance value, and when determining whether the cigarette has been completely smoked based on the detected capacitance value and a preset smokeable range, a control model can be pre-calibrated. More specifically, a more accurate control model can be obtained through partitioned calibration. That is, each capacitance sensing unit (e.g., C2, C3, etc., the number of capacitance sensing units and their respective detection objects can be determined based on the actual number of tracks used in the conductive heating track) is independently calibrated to establish a functional relationship between its capacitance change and the aerosol content of the corresponding area. The above control model or functional relationship can be pre-stored in the MCU for subsequent heating control of the heating component.

[0140] Thirdly, refer to Figure 19This utility model discloses a heating element control device for controlling the heating element to heat an aerosol-generating product or detecting the capacitance of the smoke-generating section of the aerosol-generating product. The heating element is the heating element described in any of the embodiments of the first aspect. The heating element control device can also execute the heating element control method described in any of the embodiments of the second aspect to control the heating element. The heating element control device includes a capacitance detection module 11 and a circuit control module 12.

[0141] The capacitance detection module 11 is used to control the conductive heating track to connect to the capacitance detection circuit in order to detect the current capacitance value of the cavity area corresponding to the conductive heating track.

[0142] The circuit control module 12 is used to determine whether there is an aerosol generating product in the chamber based on the current capacitance value. If there is an aerosol generating product in the chamber, the conductive heating track is switched to be electrically connected to the heating circuit, and the conductive heating track is controlled to heat the smoke-generating section of the aerosol generating product. Otherwise, the conductive heating track is kept electrically connected to the capacitance detection circuit, and the conductive heating track is controlled to detect the current capacitance value at a preset frequency.

[0143] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0144] Furthermore, the capacitance detection module 11 can also be used to perform the aforementioned step S214 and related steps. The circuit control module 12 can also be used to perform the aforementioned steps S21, S211, S212, S213, S215, S216, S217, S3, S4, S5, S6 and related steps.

[0145] Fourthly, refer to Figure 20 This utility model discloses an electronic device 2, which includes a processor 22 and a memory 21. The memory 21 stores at least one instruction, which, when executed by the processor 22, implements the heat-generating component control method in any of the embodiments of the second aspect described above. The memory 21 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory may store, for example, an operating system, application programs, a boot loader, and other programs.

[0146] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0147] Fifthly, embodiments of this utility model disclose a computer-readable storage medium storing at least one instruction, which, when executed, implements the heating component control method in any of the embodiments of the second aspect.

[0148] By adopting the above technical solution and the above heating component, it is possible to ensure high heating efficiency, determine whether the aerosol-generated product has been inserted into the chamber by capacitance detection, and adjust the heating method by detecting the capacitance of the smoke-generating section, thereby achieving more efficient heating.

[0149] In a sixth aspect, embodiments of the present invention disclose an aerosol generating device, comprising: a heating component as described in any of the embodiments of the first aspect; or, a heating component control device as described in the embodiments of the third aspect.

[0150] By adopting the above technical solution, the aerosol generating device of this utility model uses the aforementioned heating component. By setting a circuit switching switch, the conductive heating track can be switched between capacitance detection and heating functions. This fully utilizes the space of the heating component, ensuring high heating efficiency while also performing capacitance detection. Aligning the conductive heating track with the smoke-generating section of the aerosol generating product also facilitates accurate detection of the capacitance in the smoke-generating section. Furthermore, through the aforementioned heating component, while ensuring high heating efficiency, capacitance detection can determine whether the aerosol generating product has been inserted into the chamber, and the heating method can be adjusted by detecting the capacitance in the smoke-generating section, achieving even more efficient heating.

[0151] Those skilled in the art will understand that embodiments of this invention can be provided as methods, systems, or computer program products. Therefore, this invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this invention can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0152] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing device, generate instructions for implementing the flowchart illustrations. Figure 1One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0153] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0154] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0155] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A heating element, characterized in that, include: A chamber used to contain aerosol-generated products; A conductive heating track is disposed within the cavity. When the aerosol generating product is inserted into the cavity, the conductive heating track corresponds to the smoke-generating section of the aerosol generating product, including: First track; The second track is disposed opposite to the first track along a first direction, which is the axial or radial direction of the heating component; A capacitance detection circuit is electrically connected to the conductive heating track. The first track and the second track form an electrode pair. The capacitance detection circuit detects the capacitance of the smoke-generating section corresponding to the conductive heating track through the conductive heating track. A heating circuit, electrically connected to the conductive heating track, is used to control the conductive heating track to heat the aerosol-generated product; A circuit switching switch is provided, one end of which is electrically connected to the conductive heating track, and the other end of which can switch between the capacitor detection circuit and the heating circuit to electrically connect the conductive heating track to the capacitor detection circuit or the heating circuit.

2. The heating component as described in claim 1, characterized in that, The circuit switching switch is a multi-way switching switch. The first track includes a first lead, and the second track includes a second lead. Both the first lead and the second lead are electrically connected to the first terminal of the multi-way switching switch. The second terminal of the multi-way switching switch is electrically connected to the capacitor detection circuit or the heating circuit. The capacitor detection circuit includes an excitation terminal and a detection terminal. The first lead and the second lead can be synchronously electrically connected to the capacitor detection circuit through the multiplexer; or, at least one of the first lead and the second lead can be electrically connected to the heating circuit through the multiplexer. When the first lead and the second lead are simultaneously electrically connected to the capacitor detection circuit, the first lead is electrically connected to the excitation terminal, and the second lead is electrically connected to the detection terminal.

3. The heating component as described in claim 2, characterized in that, The detection end includes a first detection end and a second detection end, and the conductive heating track further includes: A third track is arranged opposite to the first track along the first direction, and the third track has a third lead, which is electrically connected to the first terminal of the multiplexer; When the conductive heating track is electrically connected to the capacitor detection circuit, the third lead is electrically connected to the excitation end, the first lead is electrically connected to the first detection end, and the second lead is electrically connected to the second detection end.

4. The heating component as described in claim 3, characterized in that, The third track is located between the first track and the second track in the first direction.

5. The heating component as described in claim 1, characterized in that, The first track and the second track are circular tracks, and the first track and the second track are arranged opposite each other along the axial direction of the chamber. The chamber includes a smoke-generating section receiving area for receiving the smoke-generating section. The smoke-generating section receiving area extends from at least a portion of the area enclosed by the first track across the area between the first track and the second track along the axial direction of the chamber and extends to at least a portion of the area enclosed by the second track.

6. The heating component as described in claim 1, characterized in that: The first track and the second track are arc-shaped tracks, and the first track and the second track are arranged opposite each other along the radial direction of the chamber. The area enclosed by the first track and the second track is used to accommodate the smoke-generating section. or, The first track and the second track are spiral tracks, and the first track and the second track are nested together to form a double spiral structure. The internal space of the double spiral structure is used to accommodate the smoke-generating section. or, The first track and the second track are staggered on the side wall of the chamber, so that the first track and the second track form an interdigitated structure.

7. The heating component as described in claim 1, characterized in that, The heating component further includes an internal heating element, the first track is disposed on the side wall of the chamber, and the second track is disposed on the surface of the internal heating element; when the aerosol generating product is inserted into the chamber, the internal heating element is located inside the smoke generating section, and the first track surrounds the smoke generating section.

8. The heating component as described in claim 1, characterized in that, When the conductive heating track is electrically connected to the heating track, the first track and the second track are connected in parallel.

9. An aerosol generating device, characterized in that, include: The heating component as described in any one of claims 1-8.

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