Aerosol-generating system

Abstract

The application provides an aerosol generating system, comprising: a replaceable aerosol generating article comprising a plurality of aerosol generating substrates; a reusable heating device configured to removably receive the aerosol generating article and heat the plurality of aerosol generating substrates in a predetermined heating sequence to generate aerosol; the heating device comprises a circuit configured to: detect the aerosol generating article received in the heating device, compare the detection results of two adjacent detections, and obtain a comparison result to determine whether the detection objects of the two adjacent detections are the same aerosol generating article; and control heating of the aerosol generating article currently received in the heating device according to the comparison result. The above aerosol generating system can determine whether the aerosol generating article received in the heating device by the user has been at least partially heated to avoid repeated heating to generate harmful substances.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and more particularly to an aerosol generation system. Background Technology

[0002] Tobacco products (such as cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion.

[0003] Examples of such products are heating devices that release compounds by heating rather than burning materials. For example, the material could be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, there are aerosol-providing articles, such as so-called aerosol-generating systems. The applicant has proposed an aerosol-generating system in Chinese patent CN221769358U, which generates aerosols by arranging a plurality of arrayed induction heaters to heat a plurality of arrayed tobacco or other non-tobacco products respectively. Utility Model Content

[0004] One embodiment of this application provides an aerosol generation system, comprising:

[0005] Replaceable aerosol generating products, including multiple aerosol generating matrices;

[0006] A reusable heating device is configured to removably receive the aerosol-generating article and heat the plurality of aerosol-generating matrices in a predetermined heating sequence to generate an aerosol; the heating device includes a circuit; the circuit is configured to:

[0007] The aerosol-generated product received in the heating device is tested, and the results of two adjacent tests are compared and the comparison results are obtained to determine whether the two adjacent test objects are the same aerosol-generated product.

[0008] Based on the comparison results, the aerosol-generated product currently received by the heating device is heated.

[0009] In some embodiments, the circuit is configured to:

[0010] When the comparison result determines that the aerosol generating articles received by the heating device are not the same, the multiple aerosol generating matrices of the aerosol generating articles currently received by the heating device are heated sequentially according to a predetermined heating order.

[0011] In some embodiments, the circuit is configured to:

[0012] When the comparison result determines that the aerosol generating articles received by the heating device are the same, and the aerosol generating articles were not heated in the predetermined heating sequence in the previous heating device, the multiple aerosol generating matrices of the aerosol generating articles currently received by the heating device are heated in the incomplete predetermined heating sequence.

[0013] In some embodiments, the circuit is further configured to:

[0014] If the comparison result determines that the aerosol generating product received by the heating device is the same, and all aerosol generating matrices were heated in a predetermined heating sequence when the aerosol generating product was previously received by the heating device, then heating of the aerosol generating product currently received by the heating device is prevented and / or the user is prompted to replace the aerosol generating product currently received by the heating device.

[0015] In some embodiments, the circuit is configured to:

[0016] The system responds to or compares two consecutive test results based on the user's operation of receiving the aerosol-generated product into the heating device.

[0017] In some embodiments, the aerosol generating article further includes a plurality of sensors; the sensors are configured to be penetrated by a changing magnetic field and heated, thereby heating the aerosol generating matrix to generate aerosols.

[0018] The heating device includes:

[0019] Multiple induction coils; when the aerosol generating product is received in the heating device, each of the multiple sensors is inductively coupled to each of the multiple induction coils, thereby generating a changing magnetic field that penetrates the sensor by the induction coils;

[0020] The circuit includes:

[0021] Multiple heating circuits are provided for guiding alternating current through multiple induction coils; each of the multiple induction coils is located in each of the multiple heating circuits.

[0022] The MCU controller determines whether the aerosol generating product received by the heating device in two consecutive instances is the same product by comparing the current values ​​of the plurality of heating circuits and / or the AC impedance of the plurality of sensors of the aerosol generating product in the heating circuits when the aerosol generating product is received by the heating device in two consecutive instances.

[0023] In some embodiments, the MCU controller is configured to:

[0024] If the change in AC impedance of at least a first predetermined number of sensors exceeds a predetermined threshold when the aerosol-generating articles are received by the heating device in two consecutive instances, it is determined that the aerosol-generating articles received by the heating device in two consecutive instances are not the same.

[0025] In some embodiments, the MCU controller is configured to:

[0026] By comparing the changes in the AC impedance of at least a second predetermined number of sensors in the heating circuit when the aerosol-generating articles are received by the heating device in two consecutive instances, it is determined that the aerosol-generating articles received by the heating device in two consecutive instances are the same.

[0027] In some embodiments, the induction coil is a planar helical coil;

[0028] And / or, the receptor is substantially planar.

[0029] In some embodiments, the plurality of sensors and / or the plurality of induction coils are arranged discretely or in an array.

[0030] In some embodiments, the MCU controller is configured to control the plurality of induction coils to generate changing magnetic fields one after another in a predetermined heating sequence, so that the plurality of sensors heat the plurality of aerosol generating matrices one after another in a predetermined heating sequence.

[0031] In some embodiments, the heating device further includes:

[0032] At least one sensor is used to sense the user's action of receiving the aerosol-generated article into the heating device.

[0033] Another embodiment of this application also proposes an aerosol generation system, comprising:

[0034] A replaceable aerosol generating article includes an aerosol generating matrix and a plurality of receptors; the receptors can be induced to heat by a changing magnetic field, thereby heating the aerosol generating matrix to generate aerosols.

[0035] A reusable heating device is configured to removably receive the aerosol-generating article and induce a plurality of the receptors to heat the aerosol-generating matrix in a predetermined heating sequence; the heating device includes:

[0036] Multiple induction coils; when the aerosol generating article is received in the heating device, each of the multiple sensors is inductively coupled to each of the multiple induction coils, thereby enabling the sensor to be induced to heat by the changing magnetic field generated by the induction coils;

[0037] Multiple heating circuits are provided for guiding alternating current through multiple induction coils; each of the multiple induction coils is located in each of the multiple heating circuits.

[0038] The MCU controller determines whether the aerosol-generated articles received by the heating device in two consecutive instances are the same, by comparing the current values ​​flowing through the plurality of heating circuits and / or the AC impedance of the plurality of sensors in the heating circuits.

[0039] Another embodiment of this application also proposes an aerosol generation system, comprising:

[0040] Replaceable aerosol generating products, including aerosol generating matrix and receptors;

[0041] A reusable heating device is configured to removably receive the aerosol-generating article and induce the receptor to heat the aerosol-generating matrix; the heating device includes:

[0042] Induction coil; when the aerosol generating product is received in the heating device, the induction coil can induce the sensor to heat the aerosol generating matrix to generate aerosol through the generated changing magnetic field;

[0043] A heating circuit is used to guide alternating current through the induction coil to generate a changing magnetic field in the induction coil;

[0044] The MCU controller determines whether the user has replaced the aerosol-generated product received by the heating device by comparing the current value flowing through the heating circuit when the aerosol-generated product is received by the heating device in two consecutive instances and / or the AC impedance of the sensor in the heating circuit.

[0045] Another embodiment of this application also proposes a control method for an aerosol generation system, the aerosol generation system comprising:

[0046] Replaceable aerosol generating products, including multiple aerosol generating matrices;

[0047] A reusable heating device is configured to removably receive the aerosol-generating article and heat the plurality of aerosol-generating matrices in a predetermined heating sequence to generate an aerosol.

[0048] The method includes:

[0049] The aerosol-generated articles received by the heating device in two consecutive instances are detected, and the results of the two consecutive detections are compared to determine whether the aerosol-generated articles received by the heating device in the two consecutive instances are the same; the heating of the aerosol-generated article currently received by the heating device is controlled according to the comparison result.

[0050] Another embodiment of this application also proposes a control method for an aerosol generation system, the aerosol generation system comprising:

[0051] Replaceable aerosol generating products, including aerosol generating matrix and receptors;

[0052] A reusable heating device is configured to removably receive the aerosol-generating article and induce the receptor to heat the aerosol-generating matrix; the heating device includes:

[0053] Induction coil; when the aerosol generating product is received in the heating device, the induction coil can induce the sensor to heat the aerosol generating matrix to generate aerosol through the generated changing magnetic field;

[0054] A heating circuit is used to guide alternating current through the induction coil to generate a changing magnetic field in the induction coil;

[0055] The method includes:

[0056] By comparing the current values ​​flowing through the heating circuit and / or the AC impedance of the sensor in the heating circuit when the aerosol-generated product is received by the heating device in two consecutive instances, it can be determined whether the user has replaced the aerosol-generated product received by the heating device.

[0057] The above aerosol generation system can distinguish whether the aerosol generated product received by the user in the heating device has been heated, so as to avoid repeated heating and the generation of harmful substances. Attached Figure Description

[0058] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0059] Figure 1 This is a schematic diagram of an aerosol generation system provided in one embodiment;

[0060] Figure 2 yes Figure 1A schematic diagram showing the removal or replacement of aerosol-generated products after the door cover of the heating device is opened;

[0061] Figure 3 yes Figure 2 A schematic diagram of the aerosol-generated products from one perspective;

[0062] Figure 4 yes Figure 2 An exploded view of the heating device from one perspective;

[0063] Figure 5 yes Figure 1 A cross-sectional schematic diagram of a medium aerosol generation system from one perspective;

[0064] Figure 6 yes Figure 1 A cross-sectional schematic diagram of the aerosol generation system from another perspective;

[0065] Figure 7 This is a structural block diagram of the circuitry arranged on the main circuit board in one embodiment;

[0066] Figure 8 yes Figure 7 A schematic diagram of the basic components of a heating circuit in a medium circuit. Detailed Implementation

[0067] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0068] One embodiment of this application provides an aerosol generation system for heating an aerosol generation article that can be used as a consumable to generate an aerosol.

[0069] In some embodiments, the aerosol generation system may include a reusable heating device and replaceable consumables such as aerosol generation articles. The replaceable consumables, such as aerosol generation articles, are received or incorporated into the reusable heating device to form the aerosol generation system.

[0070] In some embodiments, the aerosol generating article includes a solid aerosol generating matrix, and the heating device generates aerosols by heating the solid aerosol generating matrix. For example Figures 1 to 2 A schematic diagram of an aerosol generation system according to one embodiment is shown; in this embodiment, the aerosol generation system includes:

[0071] The aerosol generating product 200 is a replaceable consumable, and the heating device 100 contains and receives the aerosol generating product 200 and heats it.

[0072] exist Figure 1 and Figure 2In the illustrated embodiment, the heating device 100 includes several components disposed within a housing (which may be referred to as a casing). The overall design of the housing can vary, and the type or configuration of the housing that defines the overall size and shape of the heating device 100 can vary. Typically, an elongated body may be formed from a single, integral casing, or a longitudinally elongated casing may be formed from two or more separable bodies. In some examples, all or only part of the casing may be formed from a metal or alloy such as stainless steel or aluminum, or other suitable materials including various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, etc. Figure 1 and Figure 2 In the embodiment shown, the heating device 100 is basically flat; the longitudinal length of the heating device 100 is greater than its width, and the width is greater than its thickness.

[0073] In some embodiments, the outer casing of the heating device 100 substantially defines the outer surface of the heating device 100; Figures 1 to 2 In the illustrated embodiment, the heating device 100 includes:

[0074] The housing may contain one or more reusable components; the housing has a proximal end 110 and a distal end 120 opposite to each other in the longitudinal direction, a first side 130 and a second side 140 opposite to each other in the width direction, and a front side 150 and a rear side 160 opposite to each other in the thickness direction.

[0075] In use, the proximal end 110 is configured as the end from which the user inhales the aerosol, and a mouthpiece 111 for the user to draw in the aerosol is provided at the proximal end 110; while the distal end 120 is the end furthest from the user. A charging interface 121 is arranged at the distal end 120; the charging interface 121 is used to charge the heating device 100 and / or the battery cell 10 within the heating device 100. In some embodiments, the charging interface 121 is a USB Type-C interface; or in some other variations, the charging interface 121 may also be a USB 2.0, USB 3.0, or USB 4-pin interface.

[0076] In some embodiments, the nozzle 111 and the housing / second housing 180 are manufactured and assembled separately; and the nozzle 111 and the housing are detachably connected; thus, in use, the nozzle 111 can be detached or removed from the housing; and an airtight seal can be achieved between them by means of a sealing ring such as an O-ring. Alternatively, in yet another embodiment, the nozzle 111 and the housing / second housing 180 are integrally molded from a moldable material, and they are not detachable or separable from each other.

[0077] In use, the front side 150 is the side where the user operates to open the door cover 190, thereby receiving or removing the aerosol generating product 200; the rear side 160 is the side where the induction coil 30 is arranged.

[0078] according to Figure 1 and Figure 2 As shown, the housing of the heating device 100 includes:

[0079] A first housing 170 and a second housing 180; the first housing 170 is adjacent to or defines the front side 150, and the second housing 180 is adjacent to or defines the rear side 160.

[0080] Figure 1 and Figure 2 In some embodiments, the heating device 100 and / or the outer shell of the heating device 100 is a longitudinally elongated cylindrical shape; and in some embodiments, the length of the heating device 100 and / or the outer shell of the heating device 100 is greater than the width, and the width is greater than the thickness, thereby making the heating device 100 and / or the outer shell of the heating device 100 a flat shape.

[0081] In some embodiments, the length of the heating device 100 and / or the housing of the heating device 100 is between 60 and 160 mm; the width of the heating device 100 and / or the housing of the heating device 100 is between 22 and 50 mm; and the thickness of the heating device 100 and / or the housing of the heating device 100 is between 5 and 20 mm.

[0082] according to Figure 2 As shown, the aerosol generating article 200 is generally configured to be in the shape of a sheet or a sheet; the sheet or sheet can be characterized by the length of the aerosol generating article 200 being greater than or equal to its width, and the width being greater than at least three or at least five times its thickness.

[0083] Accordingly, the heating device 100 includes:

[0084] A receiving cavity 510 is located within the housing; and the receiving cavity 510 is substantially adapted to the shape of the aerosol generating article 200 for receiving the aerosol generating article 200. In some embodiments, the length of the receiving cavity 510 is greater than or equal to its width, and the width is greater than its thickness; and the receiving cavity 510 is arranged in a plane parallel to the longitudinal and width directions of the heating device 100.

[0085] according to Figure 1 and Figure 2As shown, the receiving cavity 510 has an opening 171 defined on the front side 150 of the housing. In an embodiment, the opening 171 is formed or defined by the first housing 170 of the housing. In use, the aerosol generating article 200 can be removably received into or removed from the receiving cavity 510 via the opening 171.

[0086] according to Figure 1 and Figure 2 As shown, the heating device 100 also includes:

[0087] The movable cover 190 is movably coupled to the housing of the heating device 100 and is movable relative to the housing, thereby selectively moving between an open position and a closed position; in the open position, the cover 190 opens the opening 171 to allow the user to operate to removably receive or remove the aerosol generating article 200 into the receiving cavity 510; in the closed position, the cover 190 covers and closes the opening 171 to prevent the user from operating to removably receive or remove the aerosol generating article 200 into the receiving cavity 510.

[0088] according to Figure 1 , Figure 2 and Figure 4 As shown, the second housing 180 of the outer casing has a longitudinally arranged pin 181 arranged on the first side 130; the door cover 190 is hinged to the outer casing via the pin 181 and can rotate about the pin 181, as shown. Figure 2 As indicated by the middle arrow R1. Furthermore, the cover 190 can be rotated to selectively configure between an open position and a closed position, thereby selectively opening or closing the opening 171. Alternatively, in some other variations, the pin 181 may be arranged on the second side 140 of the housing; the cover 190 is rotatably connected to the housing on the second side 140. Alternatively, in some other variations, the pin 181 may be located on the cover 190.

[0089] Alternatively, in some other variations, the cover 190 is fitted to the surface of the front side 150 of the first housing 170 and is linearly movable relative to the first housing 170 in the longitudinal direction; thereby selectively configuring between an open position and a closed position during movement, thereby selectively opening or closing the opening 171.

[0090] according to Figure 2 and Figure 3 As shown, the aerosol generating article 200 includes a first end 210 and a second end 220 that are opposite to each other along its length. Furthermore, the aerosol generating article 200 includes:

[0091] A first air inlet 251 and a second air inlet 252, which are isolated from each other, are formed or defined at the second end 220;

[0092] A first air outlet 261 and a second air outlet 262, which are isolated from each other, are formed or defined at the first end 210;

[0093] A first air passage R21 extends from a first air inlet 251 to a first air outlet 261, and a second air passage R22 extends from a second air inlet 252 to a second air outlet 262. The first air passage R21 and / or the second air passage R22 are arranged to extend along the length of the aerosol-generating article 200. The first air passage R21 and the second air passage R22 are isolated from each other. The first air passage R21 and / or the second air passage R22 extend in a straight line.

[0094] according to Figure 2 and Figure 3 As shown, the aerosol generating article 200 includes:

[0095] An external body 230 defining a closed volume is defined by a cover plate 231 and a tray 232. Specifically, the cover plate 231 and the tray 232 are joined along the thickness direction of the aerosol-generating article 200 to form or define the external body 230 of the aerosol-generating article 200. The tray 232 has at least one or more recesses arranged discretely or in an array. Specifically, the recesses include at least one or more first recesses 271 spaced apart along the longitudinal direction, and at least one or more second recesses 272 spaced apart along the longitudinal direction; at least one or more first recesses 271 are arranged along a first air passage R21; and at least one or more second recesses 272 are arranged along a second air passage R22.

[0096] In some embodiments, the cover plate 231 and the tray 232 are fastened together by an interference fit or a tight fit. In some embodiments, the cover plate 231 and / or the tray 232 are provided with a separating flange 235 extending along the length direction from a first end 210 to a second end 220; when the cover plate 231 and the tray 232 are joined together, the separating flange 235 separates the first air passage R21 and the second air passage R22. In an embodiment, the first air passage R21 and / or the first air inlet 251 and / or the first air outlet 261 are arranged on one side of the separating flange 235, and the second air passage R22 and / or the second air inlet 252 and / or the second air outlet 262 are arranged on the other side of the separating flange 235.

[0097] Between the cover plate 231 and the tray 232, multiple receptors 241 and aerosol generating matrix 242 respectively formed or bonded to the multiple receptors 241 are arranged; the receptors 241 can be penetrated by a changing magnetic field and generate heat, which in turn heats the aerosol generating matrix 242 bonded to them to generate aerosols. The aerosol generating matrix 242 is a sheet-like or block-like solid or gel.

[0098] In some embodiments, the receptor 241 is sheet-like. The receptor 241 has a thickness of approximately 0.03 to 1.0 mm. In a more preferred embodiment, the receptor 241 has a thickness of approximately 0.03 to 0.2 mm. In some specific embodiments, the receptor 241 has a thickness of 0.26 mm.

[0099] In some embodiments, the aerosol generating matrix 242 is a continuous thin layer disposed on the receptor 241; for example, the aerosol generating matrix 242 substantially completely covers at least one side surface of the receptor 241. Alternatively, in other embodiments, the aerosol generating matrix 242 is formed on both side surfaces of the receptor 241.

[0100] In some embodiments, aerosol generating matrix 242 can be used to refer to a matrix capable of releasing volatile compounds that can form aerosols. The volatile compounds can be released to generate aerosols by heating the aerosol generating matrix 242. In some general embodiments, the aerosol generating matrix 242 is or may comprise a solid or gel at room temperature.

[0101] In some embodiments, the aerosol generating matrix 242 may include one or more of the following: powder, granules, fragments, strips, or flakes of vanilla leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; or, the solid aerosol generating matrix 242 may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the matrix is ​​heated.

[0102] In some embodiments, the aerosol generating matrix 242 may include an active substrate; the active substrate includes or is derived from one or more plant products or components thereof; for example, in some specific embodiments, the active substrate includes plant leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc.; for example, in one specific embodiment, the active substrate includes or is derived from one or more plant varieties or components, derivatives, or extracts thereof, and the plant variety is tobacco. For example, in one specific embodiment, the active substrate includes a mixture of tobacco and plants such as traditional Chinese medicine. The active substrate may include tobacco or tobacco-containing materials; for example, the active substrate may include any of the following: tobacco leaves, tobacco vein fragments, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco slurry, cast tobacco, and expanded tobacco.

[0103] In some optional embodiments, the aerosol generating matrix 242 further includes a flavoring agent; the flavoring agent may comprise volatile aroma components. For example, in typical embodiments, the flavoring agent may provide an aroma selected from menthol, lemon, vanilla, orange, wintergreen, cherry, and cinnamon; the flavoring agent may include volatile tobacco flavoring compounds that are released from the aerosol generating matrix 242 upon heating.

[0104] In some optional embodiments, the aerosol generating matrix 242 further includes an aerosol forming agent or a smoke generator; the aerosol forming agent or smoke generator contributes to the densification and stabilization of aerosol formation during use. In some specific embodiments, the aerosol forming agent or smoke generator is or includes at least one of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, etc.

[0105] In some optional embodiments, the aerosol generating matrix 242 further includes an adhesive; the adhesive promotes the bonding of the components in the aerosol generating matrix 242 during use; for example, in some specific embodiments, the adhesive is or includes at least one of gum arabic, casein, dextrin, sodium carboxymethyl cellulose, starch, polyvinyl alcohol, guar gum, etc.

[0106] In some optional embodiments, the aerosol generating matrix 242 further includes reinforcing fibers; the reinforcing fibers typically have a higher fiber strength than the tobacco plant fibers in the active substrate, thereby enhancing the strength and plasticity of the aerosol generating matrix 242 in use. For example, in some specific embodiments, the reinforcing fibers include at least one of coniferous wood fibers, hardwood fibers, hemp or flax fibers, bamboo fibers, etc.

[0107] In one specific embodiment, the aerosol generating matrix 242 comprises: 65-90 wt% active substrate, 3-10 wt% reinforcing fiber, 0-5 wt% adhesive, 5-15 wt% fragrance, and 10-20 wt% aerosol forming agent or smoke generator.

[0108] Alternatively, in yet another specific embodiment, the aerosol generating matrix 242 comprises: 65-90 wt% active substrate, 3-10 wt% reinforcing fiber, 1-5 wt% adhesive, 5-15 wt% fragrance, and 15-40 wt% aerosol forming agent or smoke generator.

[0109] In some embodiments, the areal density of the aerosol generating matrix 242 is 20–150 g / m³. 2 .

[0110] In some embodiments, the thickness of the aerosol generating matrix 242 is 0.1–0.6 mm. In some embodiments, the thickness of the aerosol generating matrix 242 is greater than the thickness of the sensor 241.

[0111] In some embodiments, the water content in the aerosol generating matrix 242 is 6 to 14 wt%.

[0112] In some embodiments, the aerosol generating matrix 242 may include multiple sublayers; for example, in some optional embodiments, the aerosol generating matrix 242 may include a first sublayer and a second sublayer arranged in a laminated or stacked configuration. The first sublayer may include an active substrate, reinforcing fibers, an aerosol forming agent, or a smoke generator, etc.; the second sublayer primarily includes fragrance. In use, the first sublayer is used to generate aerosols, and the second sublayer is used to adjust or change the flavor or aroma properties of the aerosols.

[0113] Alternatively, in some embodiments, the aerosol generating matrix 242 having multiple sublayers may include a first sublayer and a second sublayer arranged in a laminated or stacked configuration. The first sublayer may include an active substrate, such as tobacco; the second sublayer may include flavorings and any one or more of functional additives such as adhesives, moisture-proofing agents, mildew inhibitors, and antibacterial agents. For example, the second sublayer may include 0-20 wt% flavorings, 80-100 wt% adhesives, 0-0.2 wt% moisture-proofing agents, 0-0.5 wt% mildew inhibitors, and 0-0.5 wt% antibacterial agents.

[0114] In this embodiment, the adhesive of the second sublayer includes at least one of gum arabic, casein, dextrin, sodium carboxymethyl cellulose, starch, polyvinyl alcohol, and guar gum; the moisture-proofing agent may include at least one of dimethyl fumarate, anhydrous calcium chloride, and superabsorbent resin; the mildew inhibitor includes at least one of biphenyl, o-phenylphenol, 2-pyridinium mercaptan-1-zinc oxide, ammonium persulfate, and calcium phosphate; and the antibacterial agent may be a metal oxide or a metal ion inorganic antibacterial agent.

[0115] In some other embodiments, the thickness of the second sublayer of the aerosol generating matrix 242 is 0.001 to 0.1 mm. In the preparation, the second sublayer is coated onto the sensor 241 by spraying, brushing, film transfer, etc., and then the first sublayer is bonded to the surface of the second sublayer by rolling or casting to form a multi-sublayer aerosol generating matrix 242.

[0116] Alternatively, in some other variations, the aerosol generating matrix 242 may include a gel and / or a paste. A gel may be defined as a substantially diluted crosslinked system that does not exhibit flow when in a steady state. A paste may be defined as a viscous fluid, such as a paste or gruel; for example, a paste may be a fluid having a dynamic viscosity greater than 1 Pa·s, 5 Pa·s, or 10 Pa·s when at rest.

[0117] In one embodiment, an identifiable identifier is arranged on the aerosol generating matrix 242 and / or the receptor 241. The identifier may be arranged as an identifiable pattern; or in other variations, the identifier may be an identifiable color, texture, number, text, QR code, etc. In some embodiments, the identifier serves to provide identification indication related to the unique properties of the aerosol generating article 200. The user or heating device 100 identifies the identifier to obtain the unique properties of the aerosol generating article 200.

[0118] In some embodiments, the unique properties of the aerosol generating article 200 include various information about the aerosol generating article 200, such as authenticity information, expiration date, and place of origin. In some embodiments, the above information about the aerosol generating article 200 can be obtained through identification, thereby determining whether the aerosol generating article 200 is genuine, when it has expired, and where it was manufactured. Therefore, users are less likely to unintentionally use counterfeit, expired, or undesirable aerosol generating articles 200 or articles from undesirable sources.

[0119] In some other embodiments, the unique properties of the aerosol-generating article 200 may include the flavor of the fragrance contained in the aerosol-generating matrix 242, such as peach, mint, or orange.

[0120] For example, in some embodiments, the unique properties of the aerosol-generating article 200 may include the strength of the nicotine contained in the aerosol-generating matrix 242, such as the nicotine content.

[0121] exist Figure 2 and Figure 3 In the illustrated embodiments, the receptor 241 is rigid or hard. In some embodiments, the receptor 241 is made of a sensitive metal or alloy material; thus, in use, the receptor 241 can be heated by electromagnetic induction or by being penetrated by a changing magnetic field, thereby reheating the aerosol generation matrix 242 to generate an aerosol. In some specific embodiments, the sensitive metal or alloy used to prepare or form the receptor 241 is at least one of iron or iron alloy, nickel or nickel alloy, cobalt or cobalt alloy, graphite, ordinary carbon steel, stainless steel, ferritic stainless steel, permalloy, etc. In some specific embodiments, the receptor 241 comprises a permalloy with alloy designations 1J50 or 1J85; for example, in a permalloy receptor 241, the mass percentage of iron is between 15 wt% and 85 wt%, and the mass percentage of nickel does not exceed 85 wt%.

[0122] Specifically according to Figure 2 and Figure 3As shown, multiple receptors 241 are housed and held in multiple first cavities 271 and multiple second cavities 272.

[0123] The plurality of aerosol generating substrates 242 located in the first cavity 271 are exposed to or located in the first air channel R21, thereby the generated aerosols can be output from the first air channel R21 to the first air outlet 261; and the plurality of aerosol generating substrates 242 located in the second cavity 272 are exposed to or located in the second air channel R22, thereby the generated aerosols can be output from the second air channel R22 to the second air outlet 262.

[0124] In some embodiments, the cover plate 231 and / or tray 232 are made of materials with low thermal conductivity and low mass heat capacity, such as zirconium oxide, glass, PEEK (polyether ether ketone), etc., and the long-term temperature resistance needs to be not lower than 250°C. Alternatively, in some other variations, the cover plate 231 and / or tray 232 may comprise or be paper; for example, the cover plate 231 and / or tray 232 may comprise fiber paper made of wood fiber, hemp fiber or flax fiber, bamboo fiber, etc.

[0125] In some embodiments, the receptor 241 may be a dense sheet.

[0126] according to Figures 4 to 6 As shown, the heating device 100 also includes:

[0127] The battery cell 10 is arranged longitudinally between the receiving cavity 510 and the distal end 120 for supplying power to the heating device 100 and / or the induction coil 30.

[0128] A charging circuit board 23 is located between the battery cell 10 and the remote end 120; a charging IC (i.e., a charging management chip) is arranged on the charging circuit board 23 to control the charging of the battery cell 10 through the charging interface 121.

[0129] The main circuit board 20 integrates or has a control circuit or MCU controller. The main circuit board 20 includes a first part 21 and a second part 22 arranged in a longitudinal direction. At least a portion of the second part 22 is located between the battery cell 10 and the rear side 160. At least a portion of the first part 21 is located between the receiving cavity 510 and / or the induction coil 30 and the rear side 160.

[0130] In some embodiments, the charging circuit board 23 is connected to the second portion 22 of the main circuit board 20 via conductive leads or laminated conductive lines, etc. Additionally, the battery cell 10 rests against and is connected to the second portion 22 of the main circuit board 20.

[0131] An MCU controller or similar device is disposed on the first portion 21 of the main circuit board 20 for controlling the supply of power to the induction coil 30. Alternatively, the first portion 21 of the main circuit board 20 is used to control the supply of power to the induction coil 30. Specifically, for example, the induction coil 30 includes or is an induction coil 30; at least one inverter circuit is disposed on the first portion 21 of the main circuit board 20 for converting the direct current output from the battery cell 10 into an alternating current to supply to at least one induction coil 30, thereby causing the induction coil 30 to generate a changing magnetic field. In some embodiments, the at least one inverter circuit includes at least one capacitor, which is operatively configured with at least one induction coil 30 to form an LC oscillator, and the alternating current supplied to the at least one induction coil 30 is formed by the oscillation of the LC oscillator.

[0132] according to Figures 2 to 6 As shown, the heating device 100 also includes:

[0133] A first support 50 at least partially defines a receiving cavity 510, thereby accommodating and receiving the aerosol-generating article 200. At least a portion of the first support 50 is disposed between the induction coil 30 and the front side 150. The first support 50 is at least partially concave in shape, thereby surrounding and defining the receiving cavity 510. In some embodiments, the first support 50 is made of a non-sensitive rigid material; for example, the first support 50 is made of a material such as polymer plastic or ceramic.

[0134] according to Figures 2 to 6 As shown, the nozzle 111 is hollow; the nozzle 111 has an air intake 113 at its proximal end 110; and an air outlet 112 is arranged inside the nozzle 111.

[0135] The air outlet channel 112 is connected to the receiving cavity 510 via a first air outlet port 513 and a second air outlet port 514 arranged on the bracket 50, thereby outputting the aerosol to the air inlet 113. Figure 5 As indicated by the middle arrow R30, the first vent 513 and the second vent 514 are arranged on the side of the receiving cavity 510 facing the proximal end 110.

[0136] according to Figures 2 to 6 As shown, the first support 50 also has a first air inlet 515 and a second air inlet 516 arranged on the other side facing the distal end 120, for supplying air into the receiving cavity 510 during suction. Figures 2 to 5As shown, a first air inlet 131 is arranged on the first side 130 of the housing for allowing external air to enter during suction; a second air inlet 141 is arranged on the second side 140 of the housing. The first support 50 also has an extension 52 extending toward the distal end 120 and / or the battery cell 10. In an embodiment, the extension 52 is located between the receiving cavity 510 and the battery cell 10. In an embodiment, the extension 52 is hollow and has at least one cavity inside.

[0137] according to Figures 2 to 6 As shown, the extension 52 of the first support 50 is also provided with:

[0138] The first air intake passage R11 extends from the first air intake port 131 to the first air intake connection port 515;

[0139] The second air intake passage R12 extends from the second air intake port 141 to the second air intake connection port 516.

[0140] according to Figure 5 and Figure 6 As shown, when the aerosol generating article 200 is received in the receiving cavity 510 of the first support 50, the first air inlet 251 of the second end 220 of the aerosol generating article 200 is aligned with and in airflow communication with the first air inlet 515; and the second air inlet 252 of the second end 220 of the aerosol generating article 200 is aligned with and in airflow communication with the second air inlet 515. And according to... Figure 5 As shown, when the aerosol generating article 200 is received in the receiving cavity 510 of the first support 50, the first air outlet 261 of the first end 210 of the aerosol generating article 200 is aligned with and in airflow communication with the first air outlet 513; and the second air outlet 262 of the first end 210 of the aerosol generating article 200 is aligned with and in airflow communication with the second air outlet 514.

[0141] Furthermore, in use, a first airflow channel extending from the first air inlet 131 to the suction port 113 is jointly defined by the first air inlet channel R11 of the first support 50, the first air channel R21 of the aerosol generating article 200, and the air outlet channel 112 inside the nozzle 111. The first airflow channel passes through the aerosol generating article 200 to deliver aerosols generated by the plurality of aerosol generating matrices 242 located in the first airflow channel to the suction port 113. In use, a second airflow channel extending from the second air inlet 141 to the suction port 113 is jointly defined by the second air inlet channel R12 of the first support 50, the second air channel R22 of the aerosol generating article 200, and the air outlet channel 112 inside the nozzle 111. The second airflow channel passes through the aerosol generating article 200 to deliver aerosols generated by the plurality of aerosol generating matrices 242 located in the first airflow channel to the suction port 113.

[0142] In the embodiment, the first airflow channel is isolated from the second airflow channel R22 of the aerosol generating article 200; and the second airflow channel is isolated from the first airflow channel R21 of the aerosol generating article 200.

[0143] In the connection and communication structure between the various parts of the first airflow channel and / or the second airflow channel, a first connector 521 extending towards the first side 130 in the width direction and a second connector 522 extending towards the second side 140 in the width direction are arranged on the extension portion 52 of the first bracket 50. The first connector 521 is used to connect the first air intake channel R11 with the first air intake port 131; the second connector 522 is used to connect the second air intake channel R12 with the second air intake port 141.

[0144] according to Figures 4 to 6 As shown, the extension portion 52 is also provided with a partition wall 53 that extends toward and terminates at the end portion 530, for the purpose of isolating the first intake passage R11 and the second intake passage R12.

[0145] according to Figures 4 to 6 As shown, the heating device 100 also includes:

[0146] At least one or more induction coils 30 are arranged between the receiving cavity 510 and the rear side 160; at least one or more induction coils 30 can be powered by the main circuit board 20. Figures 4 to 7 In the illustrated embodiment, at least one or more induction coils 30 are configured to generate a changing magnetic field to induce heating of the sensor 241 of the aerosol generation article 200. When the aerosol generation article 200 is received in the receiving cavity, at least one or more induction coils 30 induce heating of the aerosol generation article 200 by generating a magnetic field.

[0147] Specifically according to Figures 4 to 6 As shown, when the aerosol generating article 200 is received in the receiving cavity 510, each of the plurality of induction coils 30 is inductively coupled to each of the aerosol generating matrix 242 and / or the sensor 241, and thus each induction coil 30 can heat the sensor 241 that is inductively coupled to it.

[0148] exist Figures 4 to 6 In the illustrated embodiment, the induction coil 30 is substantially planar. In this embodiment, the induction coil 30 is configured as a planar helical coil. The sensor 241 is also planar. When the aerosol generating article 200 is received within the receiving cavity, the induction coil 30 is arranged substantially parallel to the sensor 241. Figures 4 to 6 In this embodiment, the induction coil 30 and / or the sensor 241 is circular; or in some other variations, the induction coil 30 and / or the sensor 241 is square, elliptical, or the like.

[0149] In some embodiments, when the aerosol generating article 200 is received in the receiving cavity, the induction coil 30 is arranged substantially parallel to the sensor 241. Furthermore, the distance between the induction coil 30 and the sensor 241 is less than 15 mm; more preferably, the distance between the induction coil 30 and the sensor 241 is less than 10 mm. In some embodiments, the distance between the induction coil 30 and the sensor 241 is less than the diameter of the induction coil 30.

[0150] In some embodiments, at least one or more induction coils 30 are arranged discretely or in an array.

[0151] In some embodiments, at least one or more induction coils 30 can be independently connected to a first portion 21 of the main circuit board 20, and thus can be independently powered by the main circuit board 20. For example, in some embodiments, multiple induction coils 30 are connected to the main circuit board 20, and thus the main circuit board 20 can independently provide alternating current to cause the multiple induction coils 30 to independently generate magnetic fields, thereby individually initiating heating. For example, in some embodiments, several or more induction coils 30 are individually activatable; thus, each induction coil 30 can individually heat only the corresponding sensor 241, thereby heating the aerosol generating matrix 242 on the sensor 241 to generate aerosol. For example, in some embodiments, the main circuit board 20 is configured or programmed to control several or more induction coils 30 to be activated sequentially, one after another, according to a predetermined heating sequence. In some embodiments, the main circuit board 20 is configured or programmed to control several or more induction coils 30 not to be activated simultaneously; thus, for example, the main circuit board 20 controls only one induction coil 30 to activate heating to generate enough aerosol for one inhalation each time the user inhales. In some embodiments, during each aspiration, the main circuit board 20 controls one of the plurality of induction coils 30 to heat the aerosol generating article 200. The amount of total particulate matter (TPM) generated by a sensor 241 can be at least 1.5 mg, at least 1.7 mg, at least 2.0 mg, at least 2.5 mg, at least 3.0 mg, about 1.0 mg to about 5.0 mg, about 1.5 mg to about 4.0 mg, about 2.0 mg to about 4.0 mg, or about 2.0 mg to about 3.0 mg, at least 3 mg to about 7 mg, about 4 mg to about 8 mg, and about 5 mg to about 10 mg.

[0152] according to Figures 4 to 6 In the illustrated embodiment, the plurality of induction coils 30 are arranged substantially discretely. The plurality of induction coils 30 are all substantially in the same plane.

[0153] In some embodiments, during multiple suctions by the user, the main circuit board 20 controls a predetermined heating sequence of several induction coils 30, activating heating one after another sequentially. Specifically, for example in... Figures 4 to 6As shown: During the user's first inhalation, the main circuit board 20 provides power to the first induction coil 30 closest to the left from top to bottom for heating, thereby heating the corresponding sensor 241 and aerosol generating matrix 242 to generate aerosol for one inhalation. During the user's next inhalation, the main circuit board 20 provides power to the second induction coil 30 closest to the left from top to bottom for heating, thereby heating the corresponding sensor 241 and aerosol generating matrix 242 to generate aerosol for one inhalation. This process continues until all induction coils 30 are heated, at which point all aerosol generating matrix 242 within the aerosol generating product 200 has been consumed, prompting the user to replace the aerosol generating product 200. In the above implementation, sequentially activating the induction coils 30 individually, rather than simultaneously, minimizes unnecessary consumption of the aerosol generating matrix and reduces energy waste. Alternatively, in some other implementations, the sequential activation of multiple induction coils 30 according to a predetermined heating order is performed along an array-like arrangement.

[0154] Alternatively, in some other variations, the main circuit board 20 controls multiple induction coils 30 to start sequentially and individually, without intervals, along the arrangement direction of the induction coils 30. Or, in some other variations, the main circuit board 20 controls several induction coils 30 to start sequentially and individually, either intermittently or by skipping steps.

[0155] In some embodiments, several or more induction coils 30 can be powered sequentially, i.e., powered once each time a user draws air, thereby generating aerosols consistently based on each draw.

[0156] according to Figures 2 to 6 As shown, the heating device 100 also includes:

[0157] A second bracket 40 is provided for receiving and supporting the induction coil 30. The second bracket 40 is arranged near the rear side 160; or the second bracket 40 is located between the induction coil 30 and the second housing 180. Specifically, after assembly, the first bracket 50 and the second bracket 40 receive and hold the induction coil 30 between them.

[0158] according to Figures 2 to 6 As shown, the second bracket 40 has annular flanges 41 and 42 arranged on its surface facing the front side 150 and / or the first bracket 50. At least one or more receiving cavities 43 are defined between the annular flanges 41 and 42. After assembly, multiple induction coils 30 are respectively received and mounted in multiple receiving cavities 43, and are subsequently surrounded by the annular flanges 41. Several notches are also arranged on the annular flanges 41 to allow conductive leads of the induction coils 30 to pass through the notches to the outside of the annular flanges 41, and then through the second bracket 40 to connect to the main circuit board 20.

[0159] In some embodiments, the heating device 100 includes:

[0160] An airflow sensor (not shown), such as a microphone or MEMS sensor, is used to sense the user's suction action. Based on the sensing results from the airflow sensor, the main circuit board 20 sequentially powers one or more induction coils 30. In a preferred embodiment, the main circuit board 20 controls the sequential activation of several induction coils 30 according to a predetermined heating sequence, based on the user's suction action. In some further variations, the sequential activation of the induction coils 30 by the main circuit board 20 is performed at predetermined intervals; for example, the predetermined interval is between approximately 30 seconds and 300 seconds.

[0161] In some embodiments, the main circuit board 20 controls a plurality of induction coils 30 to be activated sequentially according to a predetermined heating sequence, based on the removal or replacement of the aerosol generating product 200. Specifically, in some embodiments, after the main circuit board 20 has controlled the above induction coils 30 to be activated sequentially, it prompts the user that the aerosol generating product 200 has been consumed and prompts the user to replace it with a new aerosol generating product 200.

[0162] Alternatively, in some embodiments, when a new aerosol generating article 200 is detected being received again into the receiving cavity of the heating device 100, the induction coil 30 is activated again sequentially according to a predetermined heating sequence. Detection of a user replacing the aerosol generating article 200 can be performed using sensors; for example, the heating device 100 is equipped with a light sensor or a pressure sensor to sense whether the aerosol generating article 200 is attached to or removed from the receiving cavity, and to determine whether the user has replaced or consumed the aerosol generating article 200 based on the attachment and removal.

[0163] In some embodiments, the main circuit board 20 controls the sequential activation of the induction coils 30 in a cyclical manner. For example, in some embodiments, the cycle is performed a predetermined number of times; for example, 6 times. Specifically, a new cycle begins when the number of times the induction coils 30 are activated, and / or the number of times the user inhales, reaches a predetermined number, controlling the induction coils 30 to be activated sequentially. In another example, in some embodiments, the cycle is performed according to the removal or replacement of the aerosol-generating article 200.

[0164] In some embodiments, the main circuit board 20 controls a plurality of induction coils 30 to generate magnetic fields to induce corresponding receptors 241 to be heated according to the same heating curve. For example, in some specific embodiments, the main circuit board 20 controls the generation of magnetic fields to induce corresponding receptors 241 to be heated at a temperature of 300°C. Alternatively, in some variations, the main circuit board 20 controls the plurality of induction coils 30 to induce corresponding receptors 241 to be heated according to different heating curves or heating temperatures. For example, in some implementations, the heating temperature of the corresponding receptors 241 induced by the main circuit board 20 controlling the plurality of induction coils 30 increases or decreases sequentially along the heating start-up sequence.

[0165] For example, in some embodiments, the main circuit board 20 is configured to supply power to the induction coil 30 in a given power sequence, such that the corresponding sensor 241 reaches its operating temperature within a predetermined time. For example, each time the main circuit board 20 supplies power to the induction coil 30, the corresponding sensor 241 reaches a temperature of at least 200 degrees, or at least 300 degrees, or at least 400 degrees within 0.5 seconds, and remains at that temperature for about 2.5 seconds before stopping.

[0166] In some embodiments, the induction coil 30 is spirally wound from a low-resistivity wire material, such as conductive copper or silver wire. In some embodiments, the wire material winding the induction coil 30 has a circular cross-sectional shape; or in still other embodiments, the wire material winding the induction coil 30 has a rectangular, elliptical, or triangular cross-sectional shape. In some embodiments, the wire material winding the induction coil 30 is Litz wire, having multiple or more strands of conductive wire.

[0167] Alternatively, in some variations of the embodiments, the induction coil 30 is a trace or line formed on a planar substrate by means of conductive paste printing, deposition, or spraying. For example, in some specific embodiments, the induction coil 30 is formed in the form of a thin layer by printing, depositing, or spraying on a rigid or flexible electrically insulating substrate such as ceramic, glass, quartz, or PI film.

[0168] In some embodiments, when the aerosol generating article 200 is received within the receiving cavity 510, the sensor 241 is opposite to the induction coil 30. More preferably or precisely, the center of the sensor 241 is aligned with the center of the induction coil 30. In some embodiments, the shape of the sensor 241 is the same as the shape of the induction coil 30.

[0169] Figure 7 and Figure 8 A schematic diagram of the circuitry on a main circuit board 20 is shown in one embodiment. In this embodiment, the circuitry on the main circuit board 20 includes:

[0170] Multiple heating circuits are provided, with each induction coil 30 located in a separate heating circuit. Thus, during operation, a changing current can be directed through one induction coil 30 individually from one heating circuit to individually activate that induction coil 30 and heat the corresponding sensor 241. For example, in... Figures 1 to 6 In the aerosol generation system shown, the heating device 100 includes, for example, six induction coils 30; then in Figure 7 and Figure 8 As shown, the circuitry on the main circuit board 20 may include six heating circuits to individually drive the induction coil 30 to start heating.

[0171] In this embodiment, each heating circuit may include:

[0172] The LC oscillator 222 consists of an induction coil 30 connected to a capacitor;

[0173] Bridge 223 is connected between LC oscillator 222 and cell 10 to drive LC oscillator 222 to oscillate, thereby generating alternating current flowing through induction coil 30.

[0174] exist Figure 8 In the illustrated embodiment, the LC oscillator 222 is a series LC oscillator formed by connecting the induction coil 30 in series with at least one capacitor C; or, the LC oscillator 222 can be a parallel LC oscillator formed by connecting the induction coil 30 in parallel with at least one capacitor. Or in more embodiments, the LC oscillator 222 is an LC oscillator formed by connecting the induction coil 30 with at least two capacitors, such as the commonly used symmetrical half-bridge LC oscillator, also known as an LCC oscillator.

[0175] exist Figures 1 to 6 In the aerosol generation system shown, the heating device 100 includes, for example, six induction coils 30; correspondingly, the main circuit board 20 includes multiple LC oscillators 222. Each LC oscillator 222 consists of an induction coil 30 connected to a capacitor C. Each of the multiple bridges 223 is connected between each LC oscillator 222 and the battery cell 10.

[0176] exist Figure 8 In the illustrated embodiment, bridge 223 is a half-bridge matched to an asymmetric half-bridge LC oscillator; specifically in Figure 8 In the bridge 223, for example, a half-bridge includes switches Q1 and Q2 connected in series; Figure 8In the connection, the first terminal of switch Q1 is connected to the positive terminal of cell 10, and the second terminal is connected to the first terminal of induction coil 30; the first terminal of switch Q2 is connected to the first terminal of induction coil 30, and the second terminal is connected to the negative terminal of cell 10 via ground. Furthermore, the switching on and off of switches Q1 and Q2 is controlled by PWM pulse signals generated by switch driver 225. The PWM pulse signals generated by switch driver 225 are generated by MCU controller 224. Alternatively, in some other common variations, bridge 223 may also be a full bridge or H-bridge comprising four switches. Figure 8 In one embodiment, the MCU controller 224 drives the LC oscillator 222 to oscillate by controlling the alternating on and off of the switching transistors Q1 and Q2, thereby generating an alternating current flowing through the induction coil 30, which in turn generates a changing magnetic field in the induction coil 30 to induce the sensor 241 to heat up and generate aerosol.

[0177] In some embodiments, the MCU controller 224 controls the switching transistor driver 225 to modulate the PWM pulse signal to make the switching transistors Q1 and Q2 alternately turn on and off, thereby driving the LC oscillator 222 to oscillate so that the induction coil 30 generates a changing magnetic field.

[0178] In some typical embodiments, the frequency at which the MCU controller 224 controls the switching transistor drive 225 to modulate the PWM pulse signal is the same as or substantially consistent with the inherent optimal resonant frequency of the LC oscillator 222, thereby ensuring that the LC oscillator 222 operates in its most efficient resonant state. Given the circuit components, the inherent optimal resonant frequency of the LC oscillator 222 is essentially predetermined, for example, it can be obtained through a resonant frequency calculation formula or frequency sweep detection. Therefore, in this embodiment, the operating frequency of the LC oscillator 222 is typically its optimal resonant frequency.

[0179] exist Figure 8 In the illustrated embodiment, each heating circuit may further include:

[0180] The current detection module 221 is used to detect the current value in the heating circuit.

[0181] exist Figure 8 In the illustrated embodiment, the current detection module 221 is connected between the bridge 223 and the battery cell 10. In some specific embodiments, the current detection module 221 includes a general-purpose current detection chip, such as the readily available Analog Devices AD8210 / AD8211 / AD8212 chip, Texas Instruments INA240 / INA260 chip, etc.

[0182] In some embodiments, the MCU controller 224 is configured to:

[0183] The AC impedance Rs of the sensor 241 that is inductively coupled to the induction coil 30 in the heating circuit can be determined based on the current value detected by the current detection module 221.

[0184] In the embodiment, the total AC impedance of each heating circuit when it is working is Z=U / I; where U is the voltage value supplied to the heating circuit, which is usually the output voltage of cell 10; and I is the current value of the heating circuit.

[0185] According to the principles of physics, the formula for calculating the relationship between the total AC impedance Z of the circuit and the AC impedance Rs of the sensor 241 inductively coupled to the induction coil 30 is as follows: In the formula, Rs is the AC impedance of the inductor 241 inductively coupled to the induction coil 30, ωL is the inductive reactance of the LC oscillator 222, and ωC is the capacitive reactance of the LC oscillator 222. During operation, when the LC oscillator 222 is in resonance, ωL and 1 / ωC ​​are equal. Therefore, after substituting into the formula, the total AC impedance Z of the circuit in resonance is equal to the AC impedance Rs of the inductor 241.

[0186] Based on the principles of physics described above, the AC impedance Rs of the sensor 241 in the resonant state of the LC oscillator 222 is equal to U / I. When the output voltage of the battery cell 10 is measurable or known, the AC impedance Rs of the sensor 241 is inversely proportional to the current value I of the heating circuit. Therefore, in this embodiment, the MCU controller 224 can directly determine the AC impedance Rs of the sensor 241 corresponding to the induction coil 30 in the heating circuit based on the current value flowing through the heating circuit detected by the current detection module 221.

[0187] Similarly, the MCU controller 224 can determine the AC impedance Rs of all the sensors 241 currently received in the aerosol generating article 200 within the heating device 100 based on the current value detected by the current detection module 221 in each heating circuit.

[0188] In some embodiments, the MCU controller 224 may detect operations by which the user removes the aerosol-generated article 200 from the heating device 100 or receives the aerosol-generated article 200 into the heating device 100.

[0189] In some embodiments, the heating device 100 may be equipped with sensors for sensing operations by which a user removes the aerosol-generating article 200 from the heating device 100 or receives the aerosol-generating article 200 into the heating device 100.

[0190] Specifically, for example, in some embodiments, an infrared sensor may be arranged inside the heating device 100. The infrared sensor can directly detect whether the aerosol generating product 200 exists in the receiving cavity 510. The MCU controller 224 can determine that there was an operation by the user to receive the aerosol generating product 200 in the heating device 100 at the first time and at the second time, based on the infrared sensor's detection that there was no aerosol generating product 200 in the receiving cavity 510 at the first time and the presence of the aerosol generating product 200 in the receiving cavity 510 at the second time.

[0191] For example, in some specific embodiments, a magnetic element is arranged inside the door cover 190. A Hall sensor may be arranged inside the heating device 100; the Hall sensor determines whether the user is removing the aerosol-generating article 200 from or receiving the aerosol-generating article 200 into the heating device 100 by sensing the opening or closing of the door cover 190. More specifically, the Hall sensor senses the change in the magnetic signal generated by the magnetic element inside the door cover 190 when the user opens and then closes the door cover 190, and determines whether the user is removing the aerosol-generating article 200 from or receiving the aerosol-generating article 200 into the heating device 100.

[0192] In some embodiments, where the user also has the different operational purpose of removing the aerosol-generated article 200 from the heating device 100 for inspection or replacement, the MCU controller 224 is further configured to:

[0193] The aerosol-generated product 200 received by the heating device 100 in two consecutive instances is compared to determine whether the aerosol-generated product 200 received by the heating device 100 in two consecutive instances is the same, and the heating of the aerosol-generated product 200 currently received by the heating device 100 is controlled according to the comparison result.

[0194] In some embodiments, where the user also has the different operational purpose of removing the aerosol-generated article 200 from the heating device 100 for inspection or replacement, the MCU controller 224 is further configured to:

[0195] The aerosol-generating product 200 received by the heating device 100 is tested, and the results of two adjacent tests are compared and the comparison results are obtained to determine whether the two adjacent test objects are the same aerosol-generating product 200.

[0196] Based on the comparison results, the aerosol-generated product 200 currently received by the heating device 100 is heated.

[0197] Specifically, for example, the MCU controller 224 may be configured to: compare the AC impedance Rs of the sensor 241 currently received in the aerosol generating article 200 in the heating device 100 with the AC impedance Rs of the sensor 241 previously received in the aerosol generating article 200 in the heating device 100, to determine whether the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100, i.e., whether the aerosol generating article 200 received in two consecutive heating devices 100 is the same, and thus determine whether the user should perform a replacement operation on the aerosol generating article 200 previously received in the heating device 100.

[0198] During the manufacturing process, factors such as processing precision, material consistency, and assembly techniques can lead to differences in the AC impedance Rs of the arrayed sensors 241 in different aerosol generating products 200. For example, the following table shows the test results of the AC impedance Rs of the six sensors 241 in each of the ten aerosol generating product 200 samples. To facilitate comparison of the test results, the positions of the six sensors 241 are numbered, for example, […]. Figure 5 The positions of the receptors 241 in the first row closest to the proximal end 110 are numbered 1 and 2 from left to right. The positions of the receptors 241 in the second row are numbered 3 and 4 from left to right from top to bottom. The positions of the receptors 241 in the third row are numbered 5 and 6 from left to right.

[0199]

[0200] Based on the test results above, in different aerosol generating products 200, the corresponding sensors 241 each have different AC impedances Rs.

[0201] In some embodiments, the MCU controller 224 is further configured to:

[0202] If the change in AC impedance Rs of at least a first predetermined number, such as at least two or more sensors 241, in the aerosol generating article 200 currently received in the heating device 100, relative to the change in AC impedance Rs of the corresponding sensor 241 in the aerosol generating article 200 previously received in the heating device 100, and the change in both the amount and / or the rate of change, exceeds a predetermined threshold, it is determined that the aerosol generating article 200 currently received in the heating device 100 is not the same as the aerosol generating article 200 previously received in the heating device 100. For example, when the AC impedance Rs of the sensors 241 at positions 1 and 2 in the aerosol generating article 200 currently received in the heating device 100 is detected to be greater than the AC impedance Rs of the sensors 241 at positions 1 and 2 in the aerosol generating article 200 previously received in the heating device 100, it is determined that the aerosol generating article 200 currently received in the heating device 100 is not the same as the aerosol generating article 200 previously received in the heating device 100. For example, when the AC impedance Rs of the sensors 241 at positions 1, 3, and 5 in the aerosol generating article 200 currently received in the heating device 100 is detected to have a rate of change exceeding a predetermined threshold, such as 2%, relative to the AC impedance Rs of the sensors 241 at positions 1, 3, and 5 in the aerosol generating article 200 previously received in the heating device 100, it is determined that the aerosol generating article 200 currently received in the heating device 100 is not the same as the aerosol generating article 200 previously received in the heating device 100.

[0203] In some embodiments, the MCU controller 224 is further configured to:

[0204] If the change in AC impedance Rs of at least a second predetermined number, for example, at least five sensors 241 in the aerosol generating article 200 currently received in the heating device 100, relative to the change in AC impedance Rs of the corresponding sensor 241 in the aerosol generating article 200 previously received in the heating device 100, and the change in both the amount and / or the rate of change are lower than a predetermined threshold, it is determined that the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100. For example, when the AC impedance Rs of the sensors 241 at positions 1, 2, 3, 4, and 5 in the aerosol generating article 200 currently received in the heating device 100 is detected to be lower than the AC impedance Rs of the sensors 241 at positions 1, 2, 3, 4, and 5 in the aerosol generating article 200 previously received in the heating device 100, it is determined that the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100. For example, when the AC impedance Rs of the sensors 241 at positions 1, 2, 3, 4, and 6 in the aerosol generating article 200 currently received in the heating device 100 is detected to be less than a predetermined threshold, such as 2%, relative to the rate of change of the AC impedance Rs of the sensors 241 at positions 1, 2, 3, 4, and 6 in the aerosol generating article 200 previously received in the heating device 100, it is determined that the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100.

[0205] In some embodiments, the MCU controller 224 is further configured to:

[0206] If the aerosol generating product 200 currently received in the heating device 100 is not the same as the one previously received in the heating device 100, multiple induction coils 30 are activated sequentially according to a predetermined heating sequence for heating. That is, if the currently received aerosol generating product 200 is not the same as the one previously received, indicating that the user has replaced the aerosol generating product 200, then regardless of whether all aerosol generating substrates 242 in the previously received aerosol generating product 200 have been heated, the newly replaced aerosol generating product 200 is activated sequentially according to a predetermined heating sequence for heating.

[0207] In some embodiments, the MCU controller 224 is further configured to:

[0208] If the aerosol generating product 200 currently received in the heating device 100 is the same as the one previously received in the heating device 100, and the aerosol generating product 200 was not heated according to the predetermined heating sequence in the previous reception in the heating device 100, then the aerosol generating matrix 242 in the previous aerosol generating product 200 that was not heated or has not yet been heated will continue to be heated according to the predetermined heating sequence. That is, if the currently received aerosol generating product 200 is the same as the previous aerosol generating product 200, it indicates that the user's removal and reception operation of the aerosol generating product 200 was for inspection rather than replacement. Therefore, the induction coil 30 that has not been started can continue to be heated according to the predetermined heating sequence that was not completed when it was previously received in the heating device 100, so as to continue to heat the aerosol generating matrix 242 in the aerosol generating product 200 that has not been heated according to the predetermined heating sequence.

[0209] Furthermore, if the aerosol generating article 200 currently received in the heating device 100 is the same as the one previously received in the heating device 100, and all aerosol generating substrates 242 were heated in a predetermined heating sequence during the previous receipt in the heating device 100, then the heating device 100 will notify the user that all aerosol generating substrates 242 of the current aerosol generating article 200 have been exhausted and prompt the user to replace the aerosol generating article 200. Alternatively, the heating device 100 may prevent heating of the aerosol generating article 200 currently received in the heating device 100.

[0210] The heating device 100 described above can distinguish whether the aerosol generating product 200 received by the user into the heating device 100 has been at least partially heated in the previous process, thereby avoiding repeated heating of the aerosol generating matrix 242 in the aerosol generating product 200 that has already been heated.

[0211] Based on the above physical principles, since the output voltage of the battery cell 10 is measurable or known, the AC impedance Rs of the sensor 241 is only inversely proportional to the current value I of the heating circuit; therefore, in some other variations, the MCU controller 224 is also configured as follows:

[0212] The current value detected by the current detection module 221 in the heating circuit when the current aerosol generating product 200 is received in the heating device 100 is compared with the current value detected by the current detection module 221 in the heating circuit when the aerosol generating product 200 was received in the heating device 100 previously, thereby determining whether the aerosol generating product 200 currently received in the heating device 100 is the same as the aerosol generating product 200 previously received in the heating device 100.

[0213] For example, the MCU controller 224 may be configured to determine whether the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100, based on the fact that the difference or rate of change between the current value detected by the current detection module 221 in at least two heating circuits when the current aerosol generating article 200 is currently received in the heating device 100 and the current value detected by the current detection module 221 in at least two heating circuits when the previous aerosol generating article 200 was received in the heating device 100 exceeds a predetermined threshold. For example, the MCU controller 224 can be configured to determine that the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100, based on the fact that the difference or rate of change between the current value detected by the current detection module 221 in at least five heating circuits when the current aerosol generating article 200 is currently received in the heating device 100 and the current value detected by the current detection module 221 in at least five heating circuits when the previous aerosol generating article 200 was received in the heating device 100 is less than a predetermined threshold.

[0214] In some embodiments, the MCU controller 224 may be configured to:

[0215] Based on the user's operation of receiving the aerosol-generated product 200 into the heating device 100, the above step of detecting whether the aerosol-generated product 200 currently received in the heating device 100 is the same as the aerosol-generated product 200 previously received in the heating device 100 is performed.

[0216] Specifically, the MCU controller 224 can be configured to: according to or in response to the user's operation of receiving the aerosol-generated article 200 into the heating device 100, sequentially control the bridges 223 in a plurality of heating circuits to alternately turn on and off at a predetermined frequency, thereby guiding the alternating current for detection to flow through the induction coil 30 in the heating circuit;

[0217] The current values ​​of multiple heating circuits are obtained to determine whether the aerosol generating article 200 currently received in the heating device 100 is the same as the aerosol generating article 200 previously received in the heating device 100.

[0218] In a typical embodiment, the frequency of the alternating current used for detection may be the inherent resonant frequency of the LC oscillator 222. Also, in a typical embodiment, the alternating current used for detection may have a very short duration to avoid causing a significant temperature rise in the sensor 241 inductively coupled to the induction coil 30. For example, in a typical embodiment, the alternating current used for detection may have a duration of several tens of cycles.

[0219] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol generation system, characterized in that, include: Replaceable aerosol generating products, including multiple aerosol generating matrices; A reusable heating device is configured to removably receive the aerosol-generating article and heat the plurality of aerosol-generating matrices in a predetermined heating sequence to generate an aerosol; the heating device includes a circuit; the circuit is configured to: The aerosol-generated product received in the heating device is tested, and the results of two adjacent tests are compared and the comparison results are obtained to determine whether the two adjacent test objects are the same aerosol-generated product. Based on the comparison results, the aerosol-generated product currently received by the heating device is heated.

2. The aerosol generation system as described in claim 1, characterized in that, The circuit is configured as follows: When the comparison result determines that the aerosol generating articles received by the heating device are not the same, the multiple aerosol generating matrices of the aerosol generating articles currently received by the heating device are heated sequentially according to a predetermined heating order.

3. The aerosol generation system as described in claim 1, characterized in that, The circuit is configured as follows: When the comparison result determines that the aerosol generating articles received by the heating device are the same, and the aerosol generating articles were not heated in the predetermined heating sequence in the previous heating device, the multiple aerosol generating matrices of the aerosol generating articles currently received by the heating device are heated in the incomplete predetermined heating sequence.

4. The aerosol generation system as described in claim 1, characterized in that, The circuit is also configured to: If the comparison result determines that the aerosol generating product received by the heating device is the same, and all aerosol generating matrices were heated in a predetermined heating sequence when the aerosol generating product was previously received by the heating device, then heating of the aerosol generating product currently received by the heating device is prevented and / or the user is prompted to replace the aerosol generating product currently received by the heating device.

5. The aerosol generation system according to any one of claims 1 to 4, characterized in that, The circuit is configured as follows: The system responds to or compares two consecutive test results based on the user's operation of receiving the aerosol-generated product into the heating device.

6. The aerosol generation system according to any one of claims 1 to 4, characterized in that, The aerosol generating article also includes a plurality of sensors; the sensors are configured to be penetrated by a changing magnetic field and heated, thereby heating the aerosol generating matrix to generate aerosols. The heating device includes: Multiple induction coils; when the aerosol generating product is received in the heating device, each of the multiple sensors is inductively coupled to each of the multiple induction coils, thereby generating a changing magnetic field that penetrates the sensor by the induction coils; The circuit includes: Multiple heating circuits are provided for guiding alternating current through multiple induction coils; each of the multiple induction coils is located in each of the multiple heating circuits. The MCU controller determines whether the aerosol generating product received by the heating device in two consecutive instances is the same product by comparing the current values ​​of the plurality of heating circuits and / or the AC impedance of the plurality of sensors of the aerosol generating product in the heating circuits when the aerosol generating product is received by the heating device in two consecutive instances.

7. The aerosol generation system as described in claim 6, characterized in that, The MCU controller is configured as follows: If the change in AC impedance of at least a first predetermined number of sensors exceeds a predetermined threshold when the aerosol-generating articles are received by the heating device in two consecutive instances, it is determined that the aerosol-generating articles received by the heating device in two consecutive instances are not the same.

8. The aerosol generation system as described in claim 6, characterized in that, The MCU controller is configured as follows: By comparing the changes in the AC impedance of at least a second predetermined number of sensors in the heating circuit when the aerosol-generating articles are received by the heating device in two consecutive instances, it is determined that the aerosol-generating articles received by the heating device in two consecutive instances are the same.

9. The aerosol generation system as described in claim 6, characterized in that, The induction coil is a planar spiral coil; And / or, the receptor is substantially planar.

10. The aerosol generation system as described in claim 6, characterized in that, The plurality of sensors and / or the plurality of induction coils are arranged discretely or in an array.

11. The aerosol generation system as described in claim 6, characterized in that, The MCU controller is configured to control the plurality of induction coils to generate changing magnetic fields one after another in a predetermined heating sequence, so that the plurality of sensors heat the plurality of aerosol generation matrices one after another in a predetermined heating sequence.

12. The aerosol generation system as described in claim 5, characterized in that, The heating device also includes: At least one sensor is used to sense the user's action of receiving the aerosol-generated article into the heating device.

13. An aerosol generation system, characterized in that, include: A replaceable aerosol generating article includes an aerosol generating matrix and a plurality of receptors; the receptors can be induced to heat by a changing magnetic field, thereby heating the aerosol generating matrix to generate aerosols. A reusable heating device is configured to removably receive the aerosol-generating article and induce a plurality of the receptors to heat the aerosol-generating matrix in a predetermined heating sequence; the heating device includes: Multiple induction coils; when the aerosol generating article is received in the heating device, each of the multiple sensors is inductively coupled to each of the multiple induction coils, thereby enabling the sensor to be induced to heat by the changing magnetic field generated by the induction coils; Multiple heating circuits are provided for guiding alternating current through multiple induction coils; each of the multiple induction coils is located in each of the multiple heating circuits. The MCU controller determines whether the aerosol-generated articles received by the heating device in two consecutive instances are the same, by comparing the current values ​​flowing through the plurality of heating circuits and / or the AC impedance of the plurality of sensors in the heating circuits.

14. An aerosol generation system, characterized in that, include: Replaceable aerosol generating products, including aerosol generating matrix and receptors; A reusable heating device is configured to removably receive the aerosol-generating article and induce the receptor to heat the aerosol-generating matrix; the heating device includes: Induction coil; when the aerosol generating product is received in the heating device, the induction coil can induce the sensor to heat the aerosol generating matrix to generate aerosol through the generated changing magnetic field; A heating circuit is used to guide alternating current through the induction coil to generate a changing magnetic field in the induction coil; The MCU controller determines whether the user has replaced the aerosol-generated product received by the heating device by comparing the current value flowing through the heating circuit when the aerosol-generated product is received by the heating device in two consecutive instances and / or the AC impedance of the sensor in the heating circuit.

Images