Aerosol generating system and heating device

Abstract

Provided in the present application are an aerosol generating system and a heating device. The aerosol generating system comprises: a replaceable aerosol generating article comprising at least one aerosol generating matrix; and a reusable heating device which comprises a housing having a front side and a rear side opposite to each other, a receiving cavity configured to removably receive the aerosol generating article, an opening which is located on the front side and through which the aerosol generating article can be received in the receiving cavity or removed from the receiving cavity during use, at least one heater for heating the at least one aerosol generating matrix, and a door cover which is connected to the housing and can move relative to the housing so as to be selectively arranged between an open position and a closed position. The opening is opened in the open position of the door cover, and the opening is closed in the closed position. In the aerosol generating system, the door cover is arranged on the front side of the heating device to open or close the opening for receiving the aerosol generating article, and a heater is arranged between the receiving cavity and the rear side.

Description

Aerosol generating system and heating device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application entitled “Aerosol Generating System and Heating Device” filed with the Patent Office of China on December 29, 2023, with application number 202311861862.9, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generation system and a heating device. Background Art

[0004] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0005] An example of such a product is a heating device that releases compounds by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products, which may or may not contain nicotine. U.S. Patent No. 5,479,948A proposes a heating device that gradually transfers sections or locations of a tape-like aerosol-generating substrate to a heating element for heating. This heating device heats the tape-like aerosol-generating substrate in a manner that allows for accurate and consistent aerosol delivery to the consumer with each puff.

[0006] Application Contents

[0007] One embodiment of the present application further provides an aerosol generating system, comprising:

[0008] A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated;

[0009] A reusable heating device comprising a housing having opposing front and rear sides, and:

[0010] a receiving cavity for removably receiving an aerosol-generating article;

[0011] an opening located on the front side; in use, the aerosol-generating article can be received in the receiving cavity or removed from the receiving cavity through the opening;

[0012] at least one heater disposed between the receiving cavity and the rear side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity;

[0013] The door cover is connected to the housing and can be moved relative to the housing to be selectively configured between an open position and a closed position; the door cover opens the opening in the open position and closes the opening in the closed position.

[0014] In some embodiments, the door cover is arranged to be rotatable relative to the housing to be selectively configured between an open position and a closed position;

[0015] And / or, the door cover is arranged to be linearly movable relative to the housing to be selectively configured between the open position and the closed position.

[0016] In some embodiments, the heating device further comprises:

[0017] The pin shaft is extended and arranged along the longitudinal direction of the heating device; the door cover is rotatably connected to the shell through the pin shaft and can rotate relative to the shell around the pin shaft.

[0018] In some embodiments, the door cover has a protruding portion;

[0019] When the aerosol generating article is received in the receiving cavity, at least a portion of the protruding portion of the door cover extends from the opening into the receiving cavity to abut against the surface of the aerosol generating article, thereby at least partially supporting or retaining the aerosol generating article.

[0020] In some embodiments, the door cover is hollow;

[0021] And / or, at least one heat-insulating cavity is arranged in the door cover for heat insulation.

[0022] In some embodiments, at least one first magnetic element is disposed on the door cover;

[0023] The heating device includes at least one second magnetic element; when the door cover is in the closed position, the first magnetic element and the second magnetic element are magnetically attracted to each other to keep the door cover in the closed position.

[0024] In some embodiments, the heating device further comprises:

[0025] At least one heater is arranged between the receiving cavity and the rear side.

[0026] In some embodiments, the heating device further comprises:

[0027] proximal and distal ends facing each other in the longitudinal direction;

[0028] The battery core is located between the receiving cavity and the distal end and is used to supply power to the at least one heater.

[0029] In some embodiments, the heating device further comprises:

[0030] a first bracket at least partially defining the receiving cavity; the first bracket including an extension portion located between the receiving cavity and the battery cell;

[0031] An airflow sensor is configured to detect changes in airflow through the aerosol generating system when a user draws inhalation; the airflow sensor is housed or retained in the extension portion of the first bracket.

[0032] In some embodiments, the heating device further comprises:

[0033] The main circuit board includes a first part and a second part arranged along the length direction; wherein the first part is opposite to the receiving cavity, and the second part is opposite to the battery core.

[0034] In some embodiments, at least one heater is electrically connected to the first portion; and / or, the battery cell is electrically connected to the second portion.

[0035] In some embodiments, a controller is disposed on the first portion, and the controller is configured to control the battery cell to provide power to the at least one heater.

[0036] In some embodiments, the heating device further comprises:

[0037] Charging port, arranged at the far end;

[0038] The charging circuit board is arranged between the battery cell and the remote end and is used to control the charging interface to charge the battery cell; the charging circuit board is connected to the second part of the main circuit board.

[0039] In some embodiments, the heating device further comprises:

[0040] an airflow sensor configured to detect changes in airflow through the aerosol generating system when a user draws puff;

[0041] The controller is configured to control the at least one heater to heat one of the at least one aerosol generating substrates individually each time according to the sensing result of the airflow sensor, thereby generating an aerosol sufficient for one inhalation.

[0042] In some embodiments, the aerosol-generating article is configured substantially in the shape of a sheet;

[0043] The aerosol-generating article is asymmetric along the length direction and / or the width direction.

[0044] In some embodiments, the heating device further comprises:

[0045] The receiving chamber is arranged so that the aerosol-generating article can only be received in the receiving chamber according to a first predetermined direction, and prevents the aerosol-generating article from being received in the receiving chamber according to a second predetermined direction; the second predetermined direction is defined by flipping the aerosol-generating article in the first predetermined direction 180 degrees along the length direction and / or the width direction.

[0046] In some embodiments, the aerosol-generating article further comprises:

[0047] an outer body defining an enclosed volume, the aerosol-generating substrate being housed and retained within the outer body;

[0048] At least one substrate is located within the outer body and is capable of generating heat by being penetrated by a changing magnetic field, thereby heating the at least one aerosol-generating substrate to generate an aerosol.

[0049] In some embodiments, the at least one heater is an induction heater for generating a varying magnetic field; when the aerosol-generating article is received in the receiving cavity, the at least one induction heater is configured to generate a varying magnetic field that penetrates the at least one substrate.

[0050] In some embodiments, the thermal conductivity of at least a portion of the outer body is lower than 20 W / mK to minimize heat transfer from the base to the heating device.

[0051] In some embodiments, at least one heater is configured to be substantially planar;

[0052] And / or, at least one heater comprises or is a planar helical coil.

[0053] In some embodiments, the at least one induction heater is arranged substantially parallel to the receiving cavity.

[0054] In some embodiments, the heating device further comprises:

[0055] The second bracket is at least partially disposed between the at least one heater and the rear side and at least partially accommodates or supports the at least one heater.

[0056] In some embodiments, the second bracket is provided with:

[0057] At least one annular rim surrounds the at least one heater.

[0058] In some embodiments, the housing further includes a first side and a second side opposite to each other along the width direction; and the pin is arranged on the first side or the second side.

[0059] Another embodiment of the present application further provides an aerosol generating system, comprising:

[0060] A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; the at least one aerosol-generating substrate being configured to generate an aerosol when heated;

[0061] A reusable heating device comprising a proximal end and a distal end disposed in opposite longitudinal directions, and:

[0062] a receiving cavity for removably receiving an aerosol-generating article;

[0063] at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat the at least one aerosol-generating substrate of the aerosol-generating article;

[0064] a battery core, located between the receiving cavity and the distal end, for powering the at least one heater;

[0065] The main circuit board includes a first part and a second part arranged along the length direction; wherein the first part is opposite to the receiving cavity, and the second part is opposite to the battery core; at least one heater is located between the receiving cavity and the first part and is electrically connected to the first part; the battery core is electrically connected to the second part.

[0066] Yet another embodiment of the present application provides a heating device configured to heat an aerosol-generating article to generate an aerosol; the heating device includes a housing having a front side and a rear side facing each other, and:

[0067] a receiving chamber for receiving the aerosol-generating article;

[0068] an opening located on the front side; in use, the aerosol-generating article can be received in the receiving cavity or removed from the receiving cavity through the opening;

[0069] at least one heater disposed between the receiving cavity and the rear side; the at least one heater configured to heat at least one aerosol-generating substrate of the aerosol-generating article when the aerosol-generating article is received in the receiving cavity;

[0070] The door cover is connected to the housing and can be moved relative to the housing to be selectively configured between an open position and a closed position; the door cover opens the opening in the open position and closes the opening in the closed position.

[0071] Yet another embodiment of the present application provides a heating device configured to heat an aerosol-generating article to generate an aerosol; the heating device comprises:

[0072] a receiving cavity for removably receiving an aerosol-generating article;

[0073] at least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat the at least one aerosol-generating substrate of the aerosol-generating article;

[0074] a battery core, located between the receiving cavity and the distal end, for powering the at least one heater;

[0075] The main circuit board includes a first part and a second part arranged along the length direction; wherein the first part is opposite to the receiving cavity, and the second part is opposite to the battery core; at least one heater is located between the receiving cavity and the first part and is electrically connected to the first part; the battery core is electrically connected to the second part.

[0076] In the above aerosol generating system, a door cover is arranged on the front side of the heating device to open or close the opening for receiving the aerosol generating product, and a heater is arranged between the receiving cavity and the rear side. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0078] FIG1 is a schematic diagram of an aerosol generating system provided by one embodiment;

[0079] FIG2 is a schematic diagram of removing or replacing the aerosol generating article after the door cover in FIG1 is opened;

[0080] FIG3 is an exploded schematic diagram of the aerosol generating article in FIG2 from one perspective;

[0081] FIG4 is an exploded schematic diagram of the heating device in FIG1 from one perspective;

[0082] FIG5 is a schematic diagram of the heating device in FIG2 from a different perspective after the first housing is removed;

[0083] FIG6 is a schematic diagram of the heating device in FIG2 from another perspective after the first shell is removed;

[0084] FIG7 is a structural diagram of the first bracket in FIG4 from another perspective;

[0085] FIG8 is a structural schematic diagram of the first bracket in FIG7 from another perspective;

[0086] FIG9 is a cross-sectional schematic diagram of the aerosol generating system in FIG1 from one perspective;

[0087] FIG10 is a schematic cross-sectional view of the aerosol generating system in FIG1 from one perspective. DETAILED DESCRIPTION

[0088] In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific implementation methods.

[0089] One embodiment of the present application provides an aerosol generating system for heating an aerosol generating article that can be a consumable material to generate an aerosol.

[0090] In some embodiments, the aerosol generating system may include a reusable heating device and replaceable consumables such as an aerosol generating article. The replaceable consumables such as an aerosol generating article are received or combined with the reusable heating device to form the aerosol generating system.

[0091] For example, FIG1 and FIG2 show schematic diagrams of an aerosol generating system according to an embodiment; in this embodiment, the aerosol generating system includes:

[0092] The aerosol-generating product 200 is a replaceable consumable, and the heating device 100 accommodates and receives the aerosol-generating product 200 and heats it.

[0093] In the embodiment shown in Figures 1 and 2, the heating device 100 includes several components disposed within an outer shell (which may be referred to as a housing). The overall design of the housing may vary, and the type or configuration of the housing that may define the overall size and shape of the heating device 100 may vary. Typically, the elongated body may be formed by a single, integral housing, or the longitudinally elongated housing may be formed by two or more separable bodies. In some examples, all or only a portion of the housing may be formed from a metal or alloy such as stainless steel, aluminum, or other suitable materials including various plastics (e.g., polycarbonate), metal-plated over plastic, ceramic, and the like. In the embodiment shown in Figures 1 and 2, the heating device 100 is substantially flat; the longitudinal length of the heating device 100 is greater than the width, and the width is greater than the thickness.

[0094] In some embodiments, the housing of the heating device 100 substantially defines the outer surface of the heating device 100. In the embodiment shown in Figures 1 and 2, the heating device 100 includes:

[0095] The housing may include 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.

[0096] During use, the proximal end 110 is configured as the end through which the user inhales the aerosol and is provided with a mouthpiece 111 for the user to draw in. The distal end 120 is the end away from the user. A charging port 121 is provided at the distal end 120; this port is used to charge the heating device 100 and / or the battery cell 10 within the heating device 100. In some embodiments, the charging port 121 utilizes a USB Type-C port; in other variations, the charging port 121 may utilize a USB 2.0, USB 3.0, or USB 4-pin port.

[0097] In some embodiments, the nozzle piece 111 and the housing / second shell 180 are separately prepared and assembled; the nozzle piece 111 and the housing are detachably connected; thus, during use, the nozzle piece 111 can be detached or removed from the housing; and a sealing ring, such as an O-ring, can be used to form an airtight seal therebetween. Alternatively, in other embodiments, the nozzle piece 111 and the housing / second shell 180 are integrally molded from a moldable material and are not detachable or separable from each other.

[0098] In use, the front side 150 is a side on which the door cover 190 is opened by a user to receive or remove the aerosol-generating article 200 ; the rear side 160 is a side on which the induction heater 30 is arranged.

[0099] As shown in FIG1 and FIG2 , the housing of the heating device 100 includes:

[0100] The first shell 170 and the second shell 180 ; the first shell 170 is close to or defines the front side 150 , and the second shell 180 is close to or defines the rear side 160 .

[0101] In the embodiments of Figures 1 and 2, the heating device 100 and / or the outer shell of the heating device 100 is in a longitudinal cylindrical shape; and in the 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 configured to be flat.

[0102] In some embodiments, the length dimension of the heating device 100 and / or the shell of the heating device 100 is between 60 and 160 mm; and the width dimension of the heating device 100 and / or the shell of the heating device 100 is between 22 and 50 mm; and the thickness dimension of the heating device 100 and / or the shell of the heating device 100 is between 5 and 20 mm.

[0103] As shown in FIG. 2 , the aerosol-generating article 200 is generally configured in a sheet-like shape. The sheet-like shape can be characterized as that the length of the aerosol-generating article 200 is greater than or equal to the width, and the width is greater than the thickness.

[0104] Accordingly, the heating device 100 comprises:

[0105] A receiving cavity 510 is located within the housing; 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 the width, and the width is greater than the thickness; and the receiving cavity 510 is arranged in a plane parallel to the longitudinal direction and the width direction of the heating device 100.

[0106] 1 and 2 , the receiving cavity 510 defines an opening 171 on the front side 150 of the housing. In an embodiment, the opening 171 is formed or defined by the first shell 170 of the housing. In use, the aerosol-generating article 200 can be removably received in or removed from the receiving cavity 510 through the opening 171.

[0107] As shown in FIG1 and FIG2 , the heating device 100 further includes:

[0108] The movable door cover 190 is movably coupled to the outer shell of the heating device 100 and can move relative to the outer shell to selectively move between an open position and a closed position; when the door cover 190 is in the open position, the opening 171 is opened to enable the user to removably receive the aerosol generating product 200 in the receiving chamber 510 or remove it; when the door cover 190 is in the closed position, the opening 171 is blocked and closed to prevent the user from removably receiving the aerosol generating product 200 in the receiving chamber 510 or removing it.

[0109] As shown in Figures 1, 2, and 4, the second housing 180 of the housing is provided with a longitudinally arranged pin 181 on the first side 130. A door cover 190 is hingedly connected to the housing via the pin 181 and can rotate about the pin 181, as indicated by arrow R1 in Figure 2. Furthermore, the door cover 190 can be selectively configured between an open position and a closed position by rotation, thereby selectively opening or closing the opening 171. Alternatively, in other alternative embodiments, the pin 181 can be disposed on the second side 140 of the housing; the door cover 190 is pivotally connected to the housing at the second side 140. Alternatively, in other alternative embodiments, the pin 181 can be located on the door cover 190.

[0110] Or in some other variant embodiments, the door cover 190 is attached to the surface of the front side 150 of the first shell 170 and can move linearly relative to the first shell 170 in the longitudinal direction; and then selectively configured between the open position and the closed position during the movement, thereby selectively opening or closing the opening 171.

[0111] 2 and 6 , the substantially sheet-shaped aerosol-generating article 200 has a cutout 290 at one of its corners, so that the aerosol-generating article 200 is arranged asymmetrically in both the length direction and / or the width direction.

[0112] For example, the aerosol-generating article 200 has an asymmetry of 180 degrees along the central axis m in the length direction. Alternatively, the aerosol-generating article 200 has an asymmetry of 180 degrees along the central axis n in the width direction.

[0113] Accordingly, the receiving cavity 510 has an inclined edge 518 adapted to the cutout 290. Thus, in use, the aerosol-generating article 200 can only be received in the receiving cavity 510 along one predetermined orientation, such as the first predetermined orientation shown in FIG2 . Furthermore, the inclined edge 518 further has a ridge 519 for abutting against the cutout 290 of the aerosol-generating article 200.

[0114] 1 , 2 , and 9 , the door cover 190 has a protruding portion 191. When the aerosol-generating article 200 is received in the receiving chamber 510, the protruding portion 191 of the door cover 190 in the closed position can partially extend from the opening 171 into the receiving chamber 510 to press or abut the aerosol-generating article 200, thereby stopping the aerosol-generating article 200 against the inner bottom wall of the receiving chamber 510 facing away from the opening 170.

[0115] As shown in Figures 1, 2, 4, and 9, at least one or more first magnetic elements are further disposed within door cover 190. Specifically, the at least one or more first magnetic elements include first magnetic element 192 and first magnetic element 193. First magnetic element 192 and first magnetic element 193 are longitudinally located on either side of protruding portion 191. First magnetic element 192 and first magnetic element 193 are located within door cover 190 and are not exposed on the surface of door cover 190.

[0116] As shown in Figures 1, 2, 4 and 9, an insulating cavity 194 is further defined in the door cover 190; when the door cover 190 is in the closed position, the insulating cavity 194 is located between the outer surface of the door cover 190 and the aerosol generating article 200; it is used to prevent the heat generated by the aerosol generating article 200 from being transferred to the surface of the door cover 190 on the front side 150, which is beneficial for improving thermal insulation.

[0117] At least one or more second magnetic elements are correspondingly arranged on the heating device 100; specifically, the at least one or more second magnetic elements include a second magnetic element 61 and a second magnetic element 62. The second magnetic element 61 and the second magnetic element 62 are respectively located on either side of the receiving cavity 510 along the longitudinal direction. Specifically, a mounting groove 611 is provided in the second housing 180 near the nozzle member 111, and the second magnetic element 61 is mounted in the mounting groove 611. Correspondingly, the second magnetic element 62 can also be securely mounted in the mounting groove on the inner surface of the first housing 170.

[0118] When the door cover 190 is in the closed position, the first magnetic element 192 and the second magnetic element 61 are magnetically attracted to each other, and the first magnetic element 193 and the second magnetic element 62 are magnetically attracted to each other, thereby stably maintaining the door cover 190 in the closed position.

[0119] 2 and 3 , the aerosol-generating article 200 includes a first end 210 and a second end 220 that are opposite to each other along the length direction. Furthermore, the aerosol-generating article 200 includes:

[0120] A first air inlet 251 and a second air inlet 252 isolated from each other are formed or defined at the second end 220;

[0121] A first air outlet 261 and a second air outlet 262 isolated from each other are formed or defined at the first end 210;

[0122] A first air channel R21 extends from the first air inlet 251 to the first air outlet 261, and a second air channel R22 extends from the second air inlet 252 to the second air outlet 262. The first air channel R21 and / or the second air channel R22 are arranged to extend along the length direction of the aerosol-generating article 200. The first air channel R21 and the second air channel R22 are isolated from each other. The first air channel R21 and / or the second air channel R22 extend straight.

[0123] As shown in Figures 2 and 3, the aerosol generating article 200 includes:

[0124] The outer body 230, which defines an enclosed volume, is rigid and is defined by a cover plate 231 and a tray 232. Specifically, the cover plate 231 and the tray 232 are combined along the thickness direction of the aerosol-generating article 200 to form or define the outer body 230 of the aerosol-generating article 200. The tray 232 is provided with at least one or more recessed cavities arranged discretely or in an array.

[0125] Specifically, the concave cavities include at least one or more first concave cavities 271 arranged at intervals along the longitudinal direction, and at least one or more second concave cavities 272 arranged at intervals along the longitudinal direction; at least one or more first concave cavities 271 are arranged along the first air channel R21; at least one or more second concave cavities 272 are arranged along the second air channel R22.

[0126] In some embodiments, the cover plate 231 and the tray 232 are securely connected by means of an interference fit or a tight fit. In some embodiments, a separating flange 235 is disposed on the cover plate 231 and / or the tray 232, extending longitudinally from the first end 210 to the second end 220. When the cover plate 231 and the tray 232 are coupled together, the separating flange 235 separates the first air channel R21 from the second air channel R22. In some embodiments, the first air channel R21 and / or the first air inlet 251 and / or the first air outlet 261 are disposed on one side of the separating flange 235, while the second air channel R22 and / or the second air inlet 252 and / or the second air outlet 262 are disposed on the other side of the separating flange 235.

[0127] In the embodiment shown in FIG. 3 , the separation protrusion 235 is arranged on the surface of the tray 232 facing the cover 231 ; or in some other variations, the separation protrusion 235 is arranged on the surface of the cover 231 facing the tray 232 .

[0128] Multiple substrates and aerosol-generating matrices formed on or bonded to the substrates are arranged between the cover 231 and the tray 232. The substrates are penetrated by the changing magnetic field, generating heat that in turn heats the aerosol-generating matrices bonded to them, generating aerosol. The aerosol-generating matrices are solid or gel-like in sheet or block form.

[0129] In some embodiments, the substrate is sheet-like and has a thickness of approximately 0.03 to 1.0 mm. In a more preferred embodiment, the substrate has a thickness of approximately 0.03 to 0.2 mm. In some specific embodiments, the substrate has a thickness of 0.26 mm.

[0130] In some embodiments, the aerosol-generating substrate is a continuous thin layer disposed on the substrate; for example, the aerosol-generating substrate substantially completely covers at least one side surface of the substrate.

[0131] In some embodiments, an aerosol-generating substrate can be used to refer to a substrate that is capable of releasing volatile compounds that can form an aerosol. The volatile compounds can be released to form an aerosol by heating the aerosol-generating substrate. In some typical embodiments, the aerosol-generating substrate is or can include a solid or gel at room temperature.

[0132] In some embodiments, the aerosol-generating substrate may comprise one or more of powder, particles, shredded strips, ribbons or flakes of one or more of herb leaves, tobacco leaves, homogenized tobacco, expanded tobacco; or, the solid aerosol-generating substrate may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.

[0133] In some embodiments, the aerosol-generating matrix 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 leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. of a plant; for example, in a 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 a specific embodiment, the active substrate includes a mixture of plants such as tobacco and Chinese herbal 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 leaf vein segments, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco slurry, cast leaf tobacco, and expanded tobacco.

[0134] In some optional embodiments, the aerosol-generating substrate further comprises: a flavorant; the flavorant may comprise a volatile flavor component. For example, in typical embodiments, the flavorant may provide a flavor selected from menthol, lemon, vanilla, orange, wintergreen, cherry, and cinnamon; and the flavorant may comprise a volatile tobacco flavor compound that is released from the aerosol-generating substrate upon heating.

[0135] In some optional embodiments, the aerosol-generating substrate further comprises an aerosol-forming agent or a smoke-generating agent, which facilitates the formation of a dense and stable aerosol during use. In some specific embodiments, the aerosol-forming agent or a smoke-generating agent is or comprises at least one of glycerin, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and the like.

[0136] In some optional embodiments, the aerosol generating matrix further includes: an adhesive; the adhesive promotes the bonding of the components in the aerosol generating matrix 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.

[0137] In some optional embodiments, the aerosol-generating substrate further comprises reinforcing fibers. The reinforcing fibers generally have a fiber strength greater than that of the tobacco plant fibers in the active substrate, thereby enhancing the strength and plasticity of the aerosol-generating substrate during use. For example, in some specific embodiments, the reinforcing fibers comprise at least one of softwood fibers, hardwood fibers, hemp or flax fibers, bamboo fibers, and the like.

[0138] In a specific embodiment, the aerosol-generating matrix includes: 65-90 wt% of active substrate, 3-10 wt% of reinforcing fiber, 0-5 wt% of adhesive, 5-15 wt% of flavor, and 10-20 wt% of aerosol former or smoke generator.

[0139] Or in another specific embodiment, the aerosol generating matrix includes: 65-90 wt% of active substrate, 3-10 wt% of reinforcing fiber, 1-5 wt% of adhesive, 5-15 wt% of flavor, and 15-40 wt% of aerosol former or smoke generator.

[0140] In some embodiments, the aerosol-generating substrate has an area density of 20 to 150 g / m 2 .

[0141] In some embodiments, the thickness of the aerosol-generating substrate is 0.1 to 0.6 mm. In some embodiments, the thickness of the aerosol-generating substrate is greater than the thickness of the base.

[0142] In some embodiments, the water content of the aerosol-generating substrate is 6-14 wt%.

[0143] In some embodiments, the aerosol-generating substrate may include multiple sublayers. For example, in some optional embodiments, the aerosol-generating substrate may include a first sublayer and a second sublayer in a laminated or stacked arrangement. The first sublayer may include an active substrate, reinforcing fibers, an aerosol-forming agent or a smoke-generating agent, etc., while the second sublayer primarily includes a flavoring. During use, the first sublayer is used to generate the aerosol, while the second sublayer is used to adjust or modify the aerosol's flavor or aroma.

[0144] Alternatively, in some embodiments, an aerosol-generating matrix having multiple sublayers may include a first sublayer and a second sublayer in a laminated or stacked arrangement. The first sublayer may include an active substrate, such as tobacco; the second sublayer may include a flavoring agent and one or more functional additives such as an adhesive, a moisture barrier, a mildew inhibitor, and an antimicrobial agent. For example, the second sublayer may include 0-20 wt% of flavoring agents, 80-100 wt% of an adhesive, 0-0.2 wt% of a moisture barrier, 0-0.5 wt% of a mildew inhibitor, and 0-0.5 wt% of an antimicrobial agent.

[0145] 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-proof agent may include at least one of dimethyl fumarate, anhydrous calcium chloride, and a super absorbent resin; the mildew-proof agent includes at least one of biphenyl, o-phenylphenol, 2-pyridinethiol-1-zinc oxide, ammonium persulfate, and calcium phosphate; and the antibacterial agent may be a metal oxide or metal ion inorganic antibacterial agent.

[0146] In some other embodiments, the thickness of the second sublayer of the aerosol generating matrix is ​​0.001 to 0.1 mm; during the preparation, the second sublayer is coated on the substrate by spraying, brushing, film transfer, etc., and then the first sublayer is combined with the surface of the second sublayer by rolling or casting to form a multi-sublayer aerosol generating matrix.

[0147] Alternatively, in yet other variations, the aerosol-generating matrix may comprise a gel and / or a paste. A gel may be defined as a substantially dilute, cross-linked system that does not exhibit flow in a steady state. A paste may be defined as a viscous fluid such as a paste or slurry; for example, a paste may be a fluid having a dynamic viscosity at rest greater than 1 Pa·s, 5 Pa·s, or 10 Pa·s.

[0148] In one embodiment, a recognizable marking is disposed on the aerosol-generating substrate and / or the base. The marking may be arranged as a recognizable pattern; or in other variations, the marking may be a recognizable color, pattern, number, text, QR code, or the like. In some embodiments, the marking is used to provide an identification indication related to the unique properties of the aerosol-generating article 200. A user or the heating device 100 can obtain the unique properties of the aerosol-generating article 200 by identifying the marking.

[0149] 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 manufacture. In some embodiments, the various information about the aerosol-generating article 200 can be obtained through identification, thereby determining whether the aerosol-generating article 200 is authentic, when the aerosol-generating article 200 has expired, and where the aerosol-generating article 200 was manufactured. As a result, users may not inadvertently use an inauthentic aerosol-generating article 200, an expired aerosol-generating article 200, or an aerosol-generating article 200 from an unexpected source location.

[0150] In yet other embodiments, the unique properties of the aerosol-generating article 200 may include the flavor of the flavorant contained in the aerosol-generating substrate, such as peach, mint, or orange.

[0151] As another example, in some embodiments, the unique property of the aerosol-generating article 200 may include the strength of nicotine contained in the aerosol-generating substrate, such as the nicotine content.

[0152] In the embodiments shown in Figures 2 and 3, the substrate is rigid or hard. In some embodiments, the substrate is made of a receptive metal or alloy; thus, during use, the substrate can be heated by electromagnetic induction or by being penetrated by a changing magnetic field, thereby heating the aerosol-generating matrix to produce an aerosol. In some specific embodiments, the receptive metal or alloy used to prepare or form the substrate is, for example, at least one of iron or an iron alloy, nickel or a nickel alloy, cobalt or a cobalt alloy, graphite, ordinary carbon steel, stainless steel, ferritic stainless steel, and permalloy. In some specific embodiments, the substrate comprises permalloy with an alloy grade of 1J50 or 1J85; for example, the mass percentage of iron in the permalloy substrate is between 15wt% and 85wt%, and the mass percentage of nickel does not exceed 85wt%.

[0153] Specifically, the plurality of substrates includes: at least one or more sheet-shaped first substrates 241, and at least one or more first aerosol-generating substrates 242 formed on or bonded to the at least one or more sheet-shaped first substrates 241. The first substrates 241 and the first aerosol-generating substrates 242 are accommodated and retained in the first cavity 271.

[0154] Specifically, the plurality of substrates further includes: at least one or more sheet-shaped second substrates 281 , and at least one or more second aerosol generating substrates 282 formed on or combined with the at least one or more sheet-shaped second substrates 281 .

[0155] In a specific embodiment, each of the plurality of first aerosol-generating substrates 242 is respectively bonded to each of the plurality of first substrates 241. Each of the plurality of second aerosol-generating substrates 282 is respectively bonded to each of the plurality of second substrates 281. Furthermore, each of the plurality of first aerosol-generating substrates 242 and / or the first substrates 241 is respectively discretely arranged in the plurality of first concavities 271; and each of the plurality of second aerosol-generating substrates 282 and / or the second substrates 281 is respectively discretely arranged in the plurality of second concavities 272.

[0156] The first aerosol generating substrate 242 is exposed to or located in the first air channel R21, and thus the aerosol generated by the first aerosol generating substrate 242 can be output from the first air channel R21 to the first air outlet 261; the second aerosol generating substrate 282 is exposed to or located in the second air channel R22, and thus the aerosol generated by the second aerosol generating substrate 282 can be output from the second air channel R22 to the second air outlet 262.

[0157] In some embodiments, the first substrate 241 and / or the second substrate 281 may be a dense sheet; or in other embodiments, the first substrate 241 and / or the second substrate 281 may be a mesh having mesh holes, so that the first substrate 241 and / or the second substrate 281 is fluid permeable.

[0158] In some embodiments, the cover plate 231 and / or the tray 232 are made of a material with low thermal conductivity and low mass heat capacity, such as zirconium oxide, glass, or PEEK (polyetheretherketone), and their long-term temperature resistance needs to be no less than 250° C. Alternatively, in some alternative embodiments, the cover plate 231 and / or the tray 232 include or are made of paper; for example, the cover plate 231 and / or the tray 232 include fiber paper made from wood fiber, hemp fiber, flax fiber, bamboo fiber, or the like.

[0159] In some embodiments, the thermal conductivity of the cover plate 231 and / or the tray 232 is less than 20 W / mK; or in a more preferred embodiment, the thermal conductivity of the cover plate 231 and / or the tray 232 is less than 1 W / mK. The tray 232 having such a low thermal conductivity can minimize the heat transfer from the induced heated substrates, such as the first substrate 241 and the second substrate 281, to the heating device 100 when the aerosol-generating article 200 is accommodated in the receiving cavity 510 of the heating device 100 and is induced heated, and in particular, prevent the heat from the substrates, such as the first substrate 241 and the second substrate 281, from being transferred to the first bracket 50 defining the receiving cavity 510.

[0160] According to the embodiment shown in Figures 2 and 3, the cutout 290 of the aerosol-generating article 200 includes a first cutout 291 on the cover plate 231 and a second cutout 292 on the tray 232. When the cover plate 231 and the tray 232 are combined, the first cutout 291 and the second cutout 292 together form or define the cutout 290 of the aerosol-generating article 200.

[0161] As shown in FIG. 4 to FIG. 10 , the heating device 100 further includes:

[0162] The battery cell 10 is arranged between the receiving cavity 510 and the distal end 120 in the longitudinal direction to supply power to the heating device 100 and / or the heater 30;

[0163] The charging circuit board 23 is located between the battery cell 10 and the distal 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 ;

[0164] The main circuit board 20 integrates or arranges a control circuit or an MCU controller; the main circuit board 20 includes a first portion 21 and a second portion 22 arranged in a longitudinal direction; at least a portion of the second portion 22 is located between the battery cell 10 and the rear side 160; and the first portion 21 is at least partially located between the receiving cavity 510 and / or the induction heater 30 and the rear side 160.

[0165] 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 traces, etc. Also, the battery cell 10 abuts against and is connected to the second portion 22 of the main circuit board 20 .

[0166] The first portion 21 of the main circuit board 20 is equipped with an MCU controller, etc., for controlling the power supply to the heater 30. Alternatively, the first portion 21 of the main circuit board 20 is used to control the power supply to the heater 30. The first portion 21 of the main circuit board 20 is equipped with at least one inverter circuit for converting the direct current output by the battery cell 10 into an alternating current that is provided to the at least one planar spiral coil 30, thereby causing the planar spiral coil 30 to generate a varying magnetic field. In some embodiments, the at least one inverter circuit includes at least one capacitor that is operable to form an LC oscillator with the at least one planar spiral coil 30. The oscillation of the LC oscillator generates the alternating current that is provided to the at least one planar spiral coil 30.

[0167] As shown in FIG. 4 to FIG. 10 , the heating device 100 further includes:

[0168] At least one or more induction heaters 30 are arranged discretely or in an array. At least one or more induction heaters 30 are arranged between the receiving cavity 510 and the rear side 160. At least one or more induction heaters 30 can be independently connected to the first portion 21 of the main circuit board 20 and can be independently powered by the main circuit board 20.

[0169] In the embodiments shown in Figures 4 to 10, at least one or more induction heaters 30 are configured as electromagnetic induction heaters capable of generating a changing magnetic field, so as to induce heat in the substrate of the aerosol-generating article 200 through the magnetic field. When the aerosol-generating article 200 is received in the receiving chamber, the at least one or more induction heaters 30 induce heat in the aerosol-generating article 200 through the magnetic field.

[0170] Alternatively, in more varied embodiments, the heating device 100 further includes one or more heaters 30, wherein the heater 30 includes at least one of a resistive heater, an infrared heater, or a light heater. When the aerosol-generating article 200 is received in the receiving chamber, the heater 30 generates heat through resistive Joule heating, which in turn transfers heat to heat the aerosol-generating substrate of the aerosol-generating article 200. Alternatively, the heater 30 heats the aerosol-generating substrate of the aerosol-generating article 200 by radiating infrared light.

[0171] Specifically, as shown in Figures 4 to 10, when the aerosol generating article 200 is received in the receiving cavity 510, multiple induction heaters 30 are respectively opposite to the aerosol generating matrix and / or substrate, such as the first substrate 241 or the second substrate 281, so that each induction heater 30 can individually heat the relative first substrate 241 or the second substrate 281.

[0172] In the embodiment shown in Figures 4 to 10 , the induction heater 30 is substantially planar. In an embodiment, the induction heater 30 comprises a planar spiral coil 30. When the aerosol-generating article 200 is received in the receiving chamber, the induction heater 30 is arranged substantially parallel to a substrate, such as the first substrate 241 or the second substrate 281. In Figures 4 to 10 , the planar spiral coil 30 is circular in shape; in other alternative embodiments, the planar spiral coil 30 is square, oval, or the like.

[0173] In some embodiments, when the aerosol-generating article 200 is received in the receiving chamber, the planar spiral coil 30 is arranged substantially parallel to a substrate, such as the first substrate 241 or the second substrate 281. Furthermore, the spacing between the planar spiral coil 30 and the substrate, such as the first substrate 241 or the second substrate 281, is less than 15 mm. More preferably, the spacing between the planar spiral coil 30 and the substrate, such as the first substrate 241 or the second substrate 281, is less than 10 mm. In some embodiments, the spacing between the planar spiral coil 30 and the substrate, such as the first substrate 241 or the second substrate 281, is less than the diameter of the planar spiral coil 30.

[0174] In an embodiment, multiple planar spiral coils 30 are connected to the main circuit board 20, and the main circuit board 20 can independently provide alternating current to each of the planar spiral coils 30, causing each to independently generate a magnetic field, thereby independently activating heating. For example, in some embodiments, several or more planar spiral coils 30 are independently activatable, allowing each planar spiral coil 30 to independently heat only the corresponding substrate, such as the first substrate 241 or the second substrate 281, thereby heating the aerosol-generating substrate, such as the first aerosol-generating substrate 242 or the second aerosol-generating substrate 282, on the substrate to generate aerosol.

[0175] In some embodiments, the main circuit board 20 is configured to control the heating of the plurality of planar spiral coils 30 one after another in a predetermined order. In some embodiments, the main circuit board 20 is configured to control the heating of the plurality of planar spiral coils 30 to start at different times; for example, each time a user takes a puff, the main circuit board 20 controls only one planar spiral coil 30 to start heating to generate aerosol sufficient for one puff. In some embodiments, during each puff, the main circuit board 20 controls one of the several planar spiral coils 30 to heat the aerosol-generating article 200 separately, and the amount of total particulate matter (TPM) generated by one substrate, such as the first substrate 241 or the second substrate 281, may 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.

[0176] In some embodiments, during multiple puffs by a user, the main circuit board 20 controls a predetermined sequence of the plurality of planar spiral coils 30, sequentially activating heating one after another. Specifically, as shown in Figures 4 to 10 , during the user's first puff, the main circuit board 20 provides power to the first planar spiral coil 30 located closest to the left (from top to bottom) for heating, thereby heating the opposing substrates, such as the first substrate 241 and the first aerosol-generating substrate 242, to generate aerosol for one puff. During the user's next puff, the main circuit board 20 provides power to the second planar spiral coil 30 located closest to the left (from top to bottom) for heating, thereby heating the opposing substrates, such as the first substrate 241 and the first aerosol-generating substrate 242, to generate aerosol for one puff. This process continues until all planar spiral coils 30 are heated, and all aerosol-generating substrates, such as the first aerosol-generating substrate 242 and the second aerosol-generating substrate 282, within the aerosol-generating article 200 are consumed, prompting the user to replace the aerosol-generating article 200. In the above implementation, activating the planar spiral coils 30 individually in sequence rather than simultaneously for heating minimizes unnecessary consumption of the aerosol-generating substrate and reduces energy waste. Alternatively, in other implementations, the order in which the planar spiral coils 30 are activated in a predetermined sequence is along the direction of the array arrangement.

[0177] Alternatively, in some alternative implementations, the main circuit board 20 controls the multiple planar spiral coils 30 to be individually activated sequentially, without interruption along the arrangement direction of the planar spiral coils 30. Alternatively, in some alternative implementations, the main circuit board 20 controls the multiple planar spiral coils 30 to be individually activated sequentially, with interruptions or in a skipped manner.

[0178] In some embodiments, several or more planar helical coils 30 can be energized sequentially, ie, once per user puff, to consistently generate aerosol on a puff-by-puff basis.

[0179] In the embodiments of FIG. 4 to FIG. 10 , the heating device 100 includes:

[0180] The airflow sensor 80, such as a microphone or MEMS sensor, is used to sense the user's puffing action. Based on the sensing results of the airflow sensor, the main circuit board 20 sequentially supplies energy to one or more planar spiral coils 30. In a preferred embodiment, the main circuit board 20 controls the sequential activation of the planar spiral coils 30 in a predetermined order based on the user's puffing action. In other variations, the main circuit board 20 controls the sequential activation of the planar spiral coils 30 at predetermined intervals; for example, the predetermined interval is between approximately 30 seconds and 300 seconds.

[0181] In some embodiments, the main circuit board 20 controls the plurality of planar spiral coils 30 to be activated sequentially in a predetermined order based on the removal or replacement of the aerosol-generating article 200. Specifically, in some embodiments, after the main circuit board 20 controls the planar spiral coils 30 to be activated sequentially, the user is notified that the aerosol-generating article 200 has been consumed and is prompted to replace the aerosol-generating article 200 with a new one.

[0182] In some embodiments, upon detecting that a new aerosol-generating article 200 has been re-received into the receiving chamber of the heating device 100, the planar spiral coils 30 are reactivated sequentially according to a predetermined sequence. Detection of a user replacing an aerosol-generating article 200 with a new one can be performed using a sensor; for example, the aerosol-generating device can be provided with a light sensor or a pressure sensor to sense the engagement or removal of the aerosol-generating article 200 into or from the receiving chamber, and to determine the user's replacement or consumption of the aerosol-generating article 200 based on the engagement or removal.

[0183] In some embodiments, the main circuit board 20 controls the sequential activation of the planar spiral coils 30 in a cyclical manner. For example, in some embodiments, the cycle repeats a predetermined number of times, such as six times. Specifically, when the number of activations of the planar spiral coils 30 and / or the number of puffs taken by the user reaches a predetermined number, a new cycle begins, controlling the sequential activation of the planar spiral coils 30. For another example, in some embodiments, the cycle repeats according to the removal or replacement of the aerosol-generating article 200.

[0184] In some embodiments, the main circuit board 20 controls the plurality of planar spiral coils 30 to generate magnetic fields to induce heating of opposing substrates, such as the first substrate 241 or the second substrate 281, 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 heating of the opposing substrates, such as the first substrate 241 or the second substrate 281, to a temperature of 300°C. Alternatively, in other variations, the main circuit board 20 controls the plurality of planar spiral coils 30 to induce heating of the opposing substrates, such as the first substrate 241 or the second substrate 281, according to different heating curves or heating temperatures. For example, in some implementations, the main circuit board 20 controls the plurality of planar spiral coils 30 to induce the heating temperatures of the opposing substrates, such as the first substrate 241 or the second substrate 281, to increase or decrease sequentially along a heating start sequence.

[0185] For example, in some embodiments, the main circuit board 20 is configured to sequentially supply power to the planar spiral coil 30 at a given power level, such that the opposing substrates, such as the first substrate 241 or the second substrate 281, reach an operating temperature within a predetermined time. For example, each time the main circuit board 20 supplies power to the planar spiral coil 30, the opposing substrates, such as the first substrate 241 or the second substrate 281, reach a temperature of at least 200°C, at least 300°C, or at least 400°C within 0.5 seconds, maintain the temperature for approximately 2.5 seconds, and then stop.

[0186] In some embodiments, the planar spiral coil 30 is helically wound from a low-resistivity wire material, such as a conductive copper wire or silver wire. In some embodiments, the wire material used to wind the planar spiral coil 30 has a circular cross-sectional shape; in other embodiments, the wire material used to wind the planar spiral coil 30 has a rectangular, oval, or triangular cross-sectional shape. In some embodiments, the wire material used to wind the planar spiral coil 30 is a Litz wire having multiple or multiple conductive filaments.

[0187] Alternatively, in some alternative embodiments, the planar spiral coil 30 is a track or line formed on a planar substrate by printing, depositing, or spraying a conductive paste. For example, in some specific embodiments, the planar spiral coil 30 is formed as a thin layer by printing, depositing, or spraying on a rigid or flexible electrically insulating substrate such as ceramic, glass, quartz, or PI film.

[0188] As shown in FIG. 4 to FIG. 10 , the heating device 100 further includes:

[0189] The first support 50 at least partially defines a receiving cavity 510 to accommodate and receive the aerosol-generating article 200. At least a portion of the first support 50 is disposed between the planar spiral coil 30 and the front side 150. The first support 50 is at least partially concave in shape to surround and define the receiving cavity 510.

[0190] The first bracket 50 is substantially flat and has a front end 520 and a rear end 530 facing each other. The front end 520 is mounted toward the proximal end 110, and the rear end 530 is mounted toward the distal end 120 / battery cell 10. In some embodiments, the length of the first bracket 50 is greater than its width, and the width is greater than its thickness.

[0191] In some embodiments, the first bracket 50 is made of a non-sensitive rigid material; for example, the first bracket 50 is made of polymer plastic or ceramic.

[0192] During assembly, at least one retaining rib 182 is disposed on the inner surface of the second housing 180, which cooperates with a groove or the like on the first bracket 50 for positioning and securing the first bracket 50 within the second housing 180. A first ridge 511 is disposed on the sidewall surface of the first bracket 50 near the first side 130, and a second ridge 512 is disposed on the sidewall surface near the second side 140. When the aerosol-generating article 200 is received within the receiving cavity 510, the first ridge 511 and the second ridge 512 abut and clamp the aerosol-generating article 200 from both sides of the width direction of the aerosol-generating article 200.

[0193] As shown in FIG. 4 to FIG. 10 , the suction nozzle 111 is hollow; the suction nozzle 111 has an air inlet 113 at the proximal end 110 ; and an air outlet channel 112 is arranged inside the suction nozzle 111 .

[0194] The air outlet channel 112 is in airflow communication with the receiving chamber 510 through a first air outlet opening 513 and a second air outlet opening 514 arranged on the bracket 50, thereby outputting the aerosol to the inhalation port 113, as indicated by arrow R30 in the figure. The first air outlet opening 513 and the second air outlet opening 514 are arranged on the wall of the receiving chamber 510 at the front end 520 facing the proximal end 110.

[0195] As shown in FIG. 4 to FIG. 10 , a first air inlet communication port 515 and a second air inlet communication port 516 are further arranged on the wall of the end 530 of the first bracket 50 toward the distal end 120 , for supplying air into the receiving cavity 510 during suction.

[0196] As shown in Figures 4 to 10, 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 bracket 50 also has an extension portion 52 that extends toward and terminates at the end 530. In an embodiment, the extension portion 52 is located between the receiving cavity 510 and the end 530. In an embodiment, the extension portion 52 is hollow and has at least one cavity therein. During assembly, the extension portion 52 has at least one or more connecting portions 525; during installation, fasteners such as screws are passed through the connecting portions 525 to securely connect the first bracket 50 to the main circuit board 20 mechanically.

[0197] The extension portion 52 of the first bracket 50 is further provided with:

[0198] A first air intake passage R11 extending from the first air intake port 131 to the first air intake communication port 515;

[0199] The second air intake passage R12 extends from the second air intake port 141 to the second air intake communication port 516 .

[0200] As shown in Figure 10, when the aerosol generating article 200 is received in the receiving cavity 510 of the first bracket 50, the first air inlet 251 of the second end 220 of the aerosol generating article 200 is aligned with the first air inlet connecting port 515 and is airflow-connected; and the second air inlet 252 of the second end 220 of the aerosol generating article 200 is aligned with the second air inlet connecting port 515 and is airflow-connected.

[0201] As shown in Figure 10, when the aerosol generating article 200 is received in the receiving cavity 510 of the first bracket 50, the first air outlet 261 of the first end 210 of the aerosol generating article 200 is aligned with the first air outlet communication port 513 and is airflow-connected; and the second air outlet 262 of the first end 210 of the aerosol generating article 200 is aligned with the second air outlet communication port 514 and is airflow-connected.

[0202] Furthermore, in use, 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 within the mouthpiece 111 collectively define a first airflow channel extending from the first air inlet 131 to the inhalation port 113. Furthermore, the first airflow channel passes through the aerosol-generating article 200 and is used to deliver the aerosol generated by the first aerosol-generating substrate 242 to the inhalation port 113. Furthermore, in use, 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 within the mouthpiece 111 collectively define a second airflow channel extending from the second air inlet 141 to the inhalation port 113. Furthermore, the second airflow channel passes through the aerosol-generating article 200 and is used to deliver the aerosol generated by the second aerosol-generating substrate 282 to the inhalation port 113.

[0203] In an embodiment, the first air flow channel is isolated from the second air channel R22 of the aerosol-generating article 200 ; and the second air flow channel is isolated from the first air channel R21 of the aerosol-generating article 200 .

[0204] To connect and connect the various portions of the first and / or second airflow channels, the extended portion 52 of the first bracket 50 is provided with a first joint 521 extending along the width direction toward the first side 130, and a second joint 522 extending along the width direction toward the second side 140. The first joint 521 is used to connect the first air inlet channel R11 to the first air inlet port 131; the second joint 522 is used to connect the second air inlet channel R12 to the second air inlet port 141. A flexible first sealing sleeve 57 is disposed between the first joint 521 and the second housing 180. The first sealing sleeve 57 at least partially surrounds the first joint 521 and elastically abuts between the first joint 521 and the second housing 180, thereby providing an airtight seal therebetween. A flexible second sealing sleeve 58 is disposed between the second joint 522 and the second housing 180, thereby providing an airtight seal therebetween.

[0205] As shown in FIG. 4 to FIG. 10 , the heating device 100 further includes:

[0206] The first elastic element 53 / first elastic element 54 is configured to have a substantially annular shape; when the aerosol-generating article 200 is received in the receiving chamber 510, the first elastic element 53 at least partially elastically abuts between the first end 210 of the aerosol-generating article 200 and the first support 50, and surrounds the first air outlet 261 of the aerosol-generating article 200 and / or the first air outlet communication port 513 of the first support 50, thereby providing an airtight seal between the first air outlet 261 and the first air outlet communication port 513. When the aerosol-generating article 200 is received in the receiving chamber 510, the first elastic element 54 at least partially elastically abuts between the second end 220 of the aerosol-generating article 200 and the first support 50, and surrounds the second air outlet 262 of the aerosol-generating article 200 and / or the second air outlet communication port 514 of the first support 50, thereby providing an airtight seal between the first air outlet 261 and the first air outlet communication port 513.

[0207] Similarly, the heating device 100 further includes:

[0208] The second elastic element 55 / the second elastic element 56 is constructed to be basically annular in shape and is close to or arranged at the front end 520 of the first bracket 50; when the aerosol generating article 200 is received in the receiving cavity 510, the second elastic element 55 at least partially elastically rests between the second end 220 of the aerosol generating article 200 and the first bracket 50, and surrounds the first air inlet 251 of the aerosol generating article 200 and / or the first air inlet connection port 515 of the first bracket 50, thereby providing an airtight seal between the first air inlet connection port 515 and the first air inlet 251. When the aerosol generating article 200 is received in the receiving cavity 510, the second elastic element 56 at least partially elastically rests between the second end 220 of the aerosol generating article 200 and the first bracket 50, and surrounds the second air inlet 252 of the aerosol generating article 200 and / or the second air inlet communication port 516 of the first bracket 50, thereby providing an airtight seal between the second air inlet communication port 516 and the second air inlet 252.

[0209] The first elastic element 53 / the first elastic element 54 and the second elastic element 55 / the second elastic element 56 are made of elastic materials such as flexible silicone or thermoplastic elastomer, thereby making them elastic.

[0210] In the embodiment, the first elastic element 53 at least partially extends from the first air outlet communication port 513 into the receiving chamber 510, and the first elastic element 54 at least partially extends from the second air outlet communication port 514 into the receiving chamber 510; the second elastic element 55 at least partially extends from the first air inlet communication port 515 into the receiving chamber 510, and the second elastic element 56 at least partially extends from the second air inlet communication port 516 into the receiving chamber 510. When the aerosol-generating article 200 is received in the receiving chamber 510, the aerosol-generating article 200 is elastically clamped or retained between the first elastic elements 53 / 54 and the second elastic elements 55 / 56.

[0211] In some embodiments, the extension portion 52 is open at the end 530 and defines an opening. Accordingly, the heating device 100 is further provided with:

[0212] The closing member 70 is located between the battery cell 10 and the first bracket 50. The closing member 70 is coupled to the end 530 of the first bracket 50 and closes the opening of the extension portion 52 at the end 530. The closing member 70 is connected to the extension portion 52 via a mechanical connection mechanism such as a buckle or screw.

[0213] As shown in Figures 6, 7, 8, and 10, the extension portion 52 of the first bracket 50 is provided with a receiving wall 529 extending toward the rear side 160; the receiving wall 529 is used to accommodate and retain the airflow sensor 80. After installation, the airflow sensor 80 is located between the receiving cavity 510 and the battery cell 10. The airflow sensor 80 is located between the extension portion 52 of the first bracket 50 and the main circuit board 20. The airflow sensor 80 is soldered to the first portion 21 of the main circuit board 20 via conductive pins to form a conductive connection. In addition, a flexible wrapping element 81 is arranged between the airflow sensor 80 and the receiving wall 529. The wrapping element 81 elastically abuts between the airflow sensor 80 and the receiving wall 529 to stably retain the airflow sensor 80 within the receiving wall 529.

[0214] And generally, the airflow sensor 80 includes:

[0215] A first sensing surface facing the front side 150 / extension portion 52 is configured to sense pressure in the first and / or second airflow channels; and a second sensing surface facing the rear side 160 / main circuit board 20 is configured to communicate with the ambient air and sense ambient pressure. The airflow sensor 80 is configured to determine a user's puffing action based on the difference between the pressure sensed by the first sensing surface and the pressure sensed by the second sensing surface. During use, the wrapping element 81 further circumferentially wraps around the airflow sensor 80, thereby airtightly isolating the first and second sensing surfaces of the airflow sensor 80.

[0216] As shown in FIG. 4 to FIG. 10 , a partition wall 53 is further arranged in the extension portion 52 , extending toward and terminating at the end 530 , for isolating the first air intake passage R11 from the second air intake passage R12 .

[0217] As shown in Figures 4 to 10, the extension portion 52 is further provided with a first sensing hole 531 and a second sensing hole 532 located on either side of the partition wall 53 along the width direction. The airflow sensor 80 / first sensing surface, housed and retained within the housing wall 529, communicates with the first air inlet channel R11 / first airflow channel via the first sensing hole 531 to sense changes in airflow through the first air inlet channel R11 / first airflow channel when a user inhales. The airflow sensor 80 / first sensing surface communicates with the second air inlet channel R12 / second airflow channel via the second sensing hole 532 to sense changes in airflow through the second air inlet channel R12 / second airflow channel when a user inhales.

[0218] As shown in Figures 4 to 10, a first shielding wall 527 and a second shielding wall 528 are arranged in a longitudinal extension within the extension portion 52. The first shielding wall 527 and the second shielding wall 528 are located on both sides of the partition wall 53 along the width direction of the first bracket 50 and / or the extension portion 52. The first shielding wall 527 and / or the second shielding wall 528 are arranged parallel to the partition wall 53. In addition, the first shielding wall 527 extends from the first air intake connection port 515 toward the end 530, and the second shielding wall 528 extends from the second air intake connection port 516 toward the end 530. The extension length of the first shielding wall 527 and / or the second shielding wall 528 is shorter than the length of the partition wall 53. The first shielding wall 527 and / or the second shielding wall 528 do not extend to the end 530, and there is a gap between them.

[0219] In this embodiment, the first sensing hole 531 is located between the first blocking wall 527 and the partition wall 53. The first blocking wall 527 isolates the first sensing hole 531 from the first air inlet channel R11, preventing debris or aerosol condensate within the first air inlet channel R11 from flowing into the first sensing hole 531 and causing blockage. The first sensing hole 531 is connected to the first air inlet channel R11 through the gap between the first blocking wall 527 and the end 530, thereby maintaining airflow communication with the first air inlet channel R11 for sensing airflow changes in the first air flow channel. Similarly, the second sensing hole 532 is located between the second blocking wall 528 and the partition wall 53. The second blocking wall 528 isolates the second sensing hole 532 from the second air inlet channel R12, preventing debris or aerosol condensate within the second air inlet channel R12 from flowing into the second sensing hole 532 and causing blockage. The second sensing hole 532 passes through the gap between the second blocking wall 528 and the end 530, thereby maintaining airflow communication with the second air inlet channel R12 for sensing airflow changes in the first airflow channel.

[0220] In an embodiment, the airflow sensor 60 is in communication with both the first airflow channel and the second airflow channel. When there is suction airflow in at least one of the first airflow channel and the second airflow channel, the airflow sensor 60 can be triggered.

[0221] As shown in Figures 4 to 10 , the first air intake passage R11 and the second air intake passage R12 are substantially completely symmetrical. Specifically, as shown in Figure 10 , the first air intake passage R11 and the second air intake passage R12 are substantially mirror images of each other in the width direction. The first air intake passage R11 and / or the second air intake passage R12 are arranged in a circuitous and serpentine manner.

[0222] As shown in Figures 4 to 10 , the extension portion 52 further includes a first airflow guiding wall 523 and a second airflow guiding wall 524 extending longitudinally therefrom. The first airflow guiding wall 523 extends from the first air intake opening 515 toward the end 530, but does not extend to or terminate at the end 530. Consequently, a gap exists between the first airflow guiding wall 523 and the end 530. The second airflow guiding wall 524 extends from the second air intake opening 516 toward the end 530, but does not extend to or terminate at the end 530. Consequently, a gap exists between the second airflow guiding wall 524 and the end 530.

[0223] In use, as shown in the first air intake passage R11 in FIG10 , air entering the extension portion 52 from the first joint 521 is first guided by the first airflow guide wall 523 toward the distal end 530. The air then passes between the first airflow guide wall 523 and the first blocking wall 527 from the distal end 530 toward the front end 520 to the first air intake opening 515, where it is delivered. Alternatively, the first air intake passage R11 includes a first path portion 5251 extending from the first joint 521 toward the distal end 530, and a second path portion 5252 extending from the distal end 530 toward the front end 520 to the first air intake opening 515. Furthermore, the first air intake passage R11 extends in a circuitous manner. Furthermore, in the first air intake passage R11, the path length of the first path portion 5251 is shorter than the path length of the second path portion 5252.

[0224] Similarly, in use, as shown in the second air intake passage R12 in FIG10 , air entering the extension portion 52 from the second joint 522 is first guided by the second airflow guide wall 524 toward the distal end 530. The air then passes between the second airflow guide wall 524 and the second blocking wall 528 in a direction from the distal end 530 toward the front end 520 to the second air intake opening 516, where it is delivered to the second air intake opening 516. Alternatively, the second air intake passage R12 includes a third path portion 5261 extending from the second joint 522 toward the distal end 530, and a fourth path portion 5262 extending from the distal end 530 toward the front end 520 to the second air intake opening 516. Furthermore, the second air intake passage R12 extends in a circuitous manner. Furthermore, in the second air intake passage R12, the path length of the third path portion 5261 is shorter than the path length of the fourth path portion 5262.

[0225] As shown in FIG. 4 to FIG. 10 , the heating device 100 further includes:

[0226] Second bracket 40 is used to accommodate and support planar spiral coil 30. Second bracket 40 is arranged near rear side 160; or second bracket 40 is located between planar spiral coil 30 and second housing 180. Specifically, after assembly, first bracket 50 and second bracket 40 accommodate and retain planar spiral coil 30 therebetween.

[0227] As shown in Figures 4 to 10 , the surface of the second bracket 40 facing the front side 150 and / or the first bracket 50 is provided with an annular ridge 41 and an annular ridge 42. The annular ridge 41 and the annular ridge 42 define at least one or more accommodating cavities 43. After assembly, the planar spiral coils 30 are accommodated and mounted within the cavities 43, and are then surrounded by the annular ridges 41. The annular ridge 41 also has several notches for the conductive leads of the planar spiral coils 30 to pass through the notches to the outside of the annular ridge 41, then pass through the second bracket 40 and connect to the main circuit board 20.

[0228] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An aerosol generating system, characterized in that, Comprising: A replaceable aerosol-generating article, comprising at least one aerosol-generating substrate; The at least one aerosol-generating substrate is configured to generate an aerosol when heated; A reusable heating device, comprising a housing having a front side and a rear side facing away from each other, and: A receiving cavity for removably receiving the aerosol-generating article; An opening, located on the front side; In use, the aerosol-generating article can be received into or removed from the receiving cavity through the opening; At least one heater, arranged between the receiving cavity and the rear side; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article; A door, connected to the housing and movable relative to the housing to be selectively configured between an open position and a closed position; The door opens the opening in the open position and closes the opening in the closed position.

2. The aerosol generating system according to claim 1, wherein The door is arranged to be rotatable relative to the housing to be selectively configured between the open position and the closed position; And / or, the door is arranged to be linearly movable relative to the housing to be selectively configured between the open position and the closed position.

3. The aerosol generating system according to claim 2, wherein, The heating device further comprises: A pin shaft, arranged to extend along the longitudinal direction of the heating device; the door is rotatably connected to the housing through the pin shaft and can rotate relative to the housing about the pin shaft as an axis.

4. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The door has a protruding portion; When the aerosol-generating article is received in the receiving cavity, at least a part of the protruding portion of the door extends into the receiving cavity from the opening to abut against the surface of the aerosol-generating article, thereby at least partially supporting or holding the aerosol-generating article.

5. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The door is hollow; And / or, at least one heat-insulating cavity is arranged inside the door for heat insulation.

6. The aerosol generating system according to any one of claims 1 to 3, characterized in that, At least one first magnetic element is arranged on the door; The heating device includes at least one second magnetic element; when the door is in the closed position, the first magnetic element and the second magnetic element are magnetically adsorbed to keep the door in the closed position.

7. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The heating device further comprises: The at least one heater is arranged between the receiving cavity and the rear side.

8. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The heating device further comprises: A proximal end and a distal end facing away from each other in the longitudinal direction; A battery cell, located between the receiving cavity and the distal end, for supplying power to the at least one heater.

9. The aerosol generating system according to claim 8, wherein The heating device further comprises: A first bracket, at least partially defining the receiving cavity; the first bracket includes an extending portion located between the receiving cavity and the battery cell; An airflow sensor, configured to detect a change in the airflow flowing through the aerosol-generating system during user suction; the airflow sensor is accommodated or held in the extending portion of the first bracket.

10. The aerosol generating system according to claim 8, wherein, The heating device further comprises: A main circuit board, including a first portion and a second portion arranged along the length direction; wherein, the first portion faces the receiving cavity, and the second portion faces the battery cell.

11. The aerosol generating system according to claim 10, characterized in that, The at least one heater is electrically connected to the first portion; and / or the battery cell is electrically connected to the second portion.

12. The aerosol generating system according to claim 10, characterized in that, A controller is disposed on the first portion, and the controller is configured to control the battery cell to provide power to the at least one heater.

13. The aerosol generating system according to claim 10, characterized in that, The heating device also includes: A charging interface, arranged at the remote end; A charging circuit board is arranged between the battery cell and the remote end and is used to control the charging interface to charge the battery cell; the charging circuit board is connected to the second part of the main circuit board.

14. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The heating device also includes: an airflow sensor configured to detect changes in airflow through the aerosol generating system when a user draws inhalation; The controller is configured to control the at least one heater to heat one of the at least one aerosol generating substrates individually each time according to the sensing result of the airflow sensor, thereby generating an aerosol sufficient for one inhalation.

15. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The aerosol-generating article is substantially configured to be in the shape of a sheet; The aerosol-generating article is asymmetric along the length direction and / or the width direction.

16. The aerosol generating system according to claim 15, characterized in that, The heating device also includes: The receiving cavity is arranged to enable the aerosol generating product to be received in the receiving cavity only according to a first predetermined direction, and to prevent the aerosol generating product from being received in the receiving cavity according to a second predetermined direction; the second predetermined direction is defined by flipping the aerosol generating product in the first predetermined direction 180 degrees along the length direction and / or the width direction.

17. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The aerosol-generating article further comprises: an outer body defining an enclosed volume, the aerosol-generating substrate being contained and retained within the outer body; At least one substrate is located within the outer body and can generate heat by being penetrated by the changing magnetic field, thereby heating the at least one aerosol-generating substrate to generate an aerosol.

18. The aerosol generating system according to claim 17, wherein The at least one heater is an induction heater for generating a changing magnetic field; when the aerosol-generating article is received in the receiving cavity, the at least one induction heater is configured to generate a changing magnetic field that penetrates the at least one substrate.

19. The aerosol generating system according to claim 17, characterized in that, The thermal conductivity of at least part of the outer body is lower than 20 W / mk, so as to prevent the heat of the base body from being transferred to the heating device as much as possible.

20. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The at least one heater is configured to be substantially planar; And / or, the at least one heater comprises or is a planar spiral coil.

21. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The at least one induction heater is arranged substantially parallel to the receiving cavity.

22. The aerosol generating system according to any one of claims 1 to 3, characterized in that, The heating device also includes: The second bracket is at least partially arranged between the at least one heater and the rear side, and at least partially accommodates or supports the at least one heater.

23. The aerosol generating system according to claim 22, wherein, The second bracket is provided with: At least one annular rim surrounds the at least one heater.

24. The aerosol generating system according to claim 3, wherein, The housing further comprises a first side and a second side opposite to each other in the width direction; The pin shaft is arranged on the first side or the second side.

25. An aerosol generating system, characterized in that, include: A replaceable aerosol-generating article comprising at least one aerosol-generating substrate; The at least one aerosol-generating substrate is configured to generate an aerosol when heated; A reusable heating device comprising a proximal end and a distal end facing each other in a longitudinal direction, and: A receiving cavity for removably receiving the aerosol-generating article; At least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article; A battery cell located between the receiving cavity and the distal end for powering the at least one heater; A main circuit board including a first portion and a second portion arranged along a length direction; wherein, the first portion faces the receiving cavity, and the second portion faces the battery cell; the at least one heater is located between the receiving cavity and the first portion and is electrically connected to the first portion; The battery cell is electrically connected to the second portion.

26. A heating device configured to heat an aerosol-generating article to generate an aerosol; characterized in that, The heating device includes a housing having a front side and a rear side facing away from each other, and: A receiving cavity for receiving an aerosol-generating article; An opening located on the front side; in use, the aerosol-generating article can be received in the receiving cavity or removed from the receiving cavity through the opening; At least one heater arranged between the receiving cavity and the rear side; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article; A door cover connected to the housing and movable relative to the housing to be selectively configured between an open position and a closed position; The door cover opens the opening in the open position and closes the opening in the closed position.

27. A heating device configured to heat an aerosol-generating article to generate an aerosol; characterized in that, The heating device includes: A receiving cavity for removably receiving the aerosol-generating article; At least one heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is configured to heat at least one aerosol-generating substrate of the aerosol-generating article; A battery cell located between the receiving cavity and the distal end for powering the at least one heater; A main circuit board including a first portion and a second portion arranged along a length direction; wherein, the first portion faces the receiving cavity, and the second portion faces the battery cell; the at least one heater is located between the receiving cavity and the first portion and is electrically connected to the first portion; the battery cell is electrically connected to the second portion.

Images