Aerosol generation apparatus and control method therefor

Abstract

Disclosed in the present application are an aerosol generation apparatus and a control method therefor. The aerosol generation apparatus comprises: a heater, which is used for heating an aerosol generation product to generate an aerosol, wherein the heater comprises a first heating part and a second heating part; a battery cell, which is used for providing electric power; a temperature sensor, which is arranged on the first heating part; and a circuit, which is configured to control, within at least one of a plurality of heating stages and on the basis of a real-time temperature of the first heating part measured by the temperature sensor, the battery cell to provide heating energy for the first heating part and the second heating part, wherein the heating energy provided for the second heating part is proportional to the heating energy provided for the first heating part. By means of the aerosol generation apparatus and the control method therefor, when a second heating part has no temperature sensing, it is ensured that the second heating part is heated along with a first heating part, thereby realizing temperature control over the second heating part.

Description

Aerosol generating device and control method thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application entitled “Aerosol Generating Device and Control Method Thereof” filed with the Patent Office of China on December 25, 2023, with application number 202311797236.8, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present application relate to the field of electronic atomization technology, and in particular to an aerosol generating device and a control method thereof. Background Art

[0004] Aerosol-generating devices use heaters to heat and bake aerosol-generating products to generate aerosol for inhalation. Users typically expect aerosol-generating devices to generate aerosol as quickly as possible after activation, minimizing the waiting time for aerosol generation. To ensure rapid aerosol generation and a satisfactory consumer experience, some solutions have implemented design improvements to the heater or control method.

[0005] In some solutions known to the inventors of this application, aerosol-generating devices typically employ multiple heaters. The goal is to control some heaters to reach an aerosol-generating temperature first, thereby fully preheating and baking a portion of the aerosol-generating product to generate aerosol. Then, another portion of the heaters is controlled to reach an aerosol-generating temperature, thereby preheating and baking another portion of the aerosol-generating product to generate aerosol. This approach typically requires multiple corresponding temperature sensors, which is costly.

[0006] Application Contents

[0007] In view of this, some embodiments of the present application provide an aerosol generating device and a control method thereof to achieve temperature control of multiple heaters.

[0008] Some embodiments of the present application provide an aerosol generating device, comprising:

[0009] a heater for heating the aerosol-generating article to generate an aerosol; the heater comprising a first heating portion and a second heating portion;

[0010] Battery cells, used to provide electricity;

[0011] a temperature sensor, disposed on the first heating portion;

[0012] The circuit is configured to control the battery cell to provide heating energy to the first heating part and the second heating part based on the real-time temperature of the first heating part detected by the temperature sensor in at least one heating stage among multiple heating stages; wherein the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

[0013] In one example, further comprising a chamber for removably receiving the aerosol-generating article;

[0014] The first heating portion and the second heating portion are sequentially arranged along an axial direction of the chamber.

[0015] In one example, the heating energy provided to the second heating portion is directly proportional to the heating energy provided to the first heating portion.

[0016] In one example, in the at least one heating stage, a proportionality coefficient between the heating energy provided to the second heating portion and the heating energy provided to the first heating portion is constant.

[0017] In one example, the circuit is configured to adjust or change a proportional coefficient of the heating energy provided to the second heating portion to the heating energy provided to the first heating portion when entering a subsequent heating stage from a previous heating stage.

[0018] In one example, the circuit is configured to control the battery cell to provide heating energy to the first heating portion and the second heating portion simultaneously.

[0019] In one example, the at least one heating phase includes a plurality of time periods;

[0020] The circuit is configured to control the battery cell to alternately provide heating energy to the first heating portion and the second heating portion during the time period.

[0021] In one example, the time period includes a first partial time period and a second partial time period;

[0022] The circuit is configured to:

[0023] During the first time period, controlling the battery cell to provide heating energy to the first heating portion and stopping providing heating energy to the second heating portion;

[0024] During the second time period, the battery cell is controlled to provide heating energy to the second heating portion and stop providing heating energy to the first heating portion.

[0025] In one example, the circuit is configured to, within the time period, when the battery cell provides heating energy to the first heating portion, if the heating energy provided to the first heating portion is greater than or equal to a preset first energy threshold, control the battery cell to stop providing heating energy to the first heating portion and start providing heating energy to the second heating portion; or,

[0026] During the time period, when the battery cell provides heating energy to the second heating part, if the heating energy provided to the second heating part is greater than or equal to a preset second energy threshold, the battery cell is controlled to stop providing heating energy to the second heating part.

[0027] In one example, the circuit is configured to, during the time period, when the first heating part is in a natural cooling state or the battery cell stops providing heating energy to the first heating part or controls the battery cell to provide heating energy to the second heating part, if the real-time temperature of the first heating part is less than or equal to a preset temperature threshold, control the battery cell to provide heating energy to the first heating part and stop providing heating energy to the second heating part.

[0028] Other embodiments of the present application provide an aerosol generating device, comprising:

[0029] a heater for heating the aerosol-generating article to generate an aerosol; the heater comprising a first heating portion and a second heating portion;

[0030] Battery cells, used to provide electricity;

[0031] The circuit is configured to control the battery cell to alternately provide heating energy to the first heating part and the second heating part in at least one heating stage among multiple heating stages; wherein the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

[0032] Other embodiments of the present application provide a method for controlling an aerosol generating device, wherein the aerosol generating device includes a heater for heating an aerosol generating article and a battery cell for providing power, wherein the heater includes a first heating portion and a second heating portion;

[0033] The control method includes:

[0034] In at least one heating stage among the multiple heating stages, based on the real-time temperature of the first heating part detected by the temperature sensor, the battery cell is controlled to provide heating energy to the first heating part and the second heating part; wherein the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

[0035] In one example, the heating energy provided to the second heating portion is directly proportional to the heating energy provided to the first heating portion.

[0036] In one example, in the at least one heating stage, a proportionality coefficient between the heating energy provided to the second heating portion and the heating energy provided to the first heating portion is constant.

[0037] In one example, when entering a subsequent heating stage from a previous heating stage, a proportional coefficient of the heating energy provided to the second heating portion to the heating energy provided to the first heating portion is adjusted or changed.

[0038] The aerosol generating device and control method thereof provided in the embodiments of the present application detect the real-time temperature of the first heating part through a temperature sensor, and control the battery cell to provide heating energy to the first heating part and the second heating part based on the real-time temperature. The heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part. In this way, when the second heating part has no temperature perception, it is ensured that the second heating part follows the first heating part in heating, thereby achieving temperature control of the second heating part. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] 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.

[0040] FIG1 is a schematic diagram of an aerosol generating device provided by an embodiment;

[0041] FIG2 is a schematic structural diagram of an embodiment of the heater in FIG1 ;

[0042] FIG3 is an exploded schematic diagram of the various parts of the heater in FIG2 before assembly;

[0043] FIG4 is a schematic diagram of the heating element in FIG3 after being expanded along the circumferential direction;

[0044] FIG5 is a schematic diagram of directing current on a heating element in one embodiment;

[0045] FIG6 is a schematic diagram of directing current on a heating element according to another embodiment;

[0046] FIG7 is a schematic diagram of guiding current on a heating element according to another embodiment;

[0047] FIG8 is a schematic diagram of directing current on a heating element according to another embodiment;

[0048] FIG9 is a flow chart of a control method in some embodiments of the present application;

[0049] FIG10 is a schematic diagram showing temperature changes of the first heating portion and the second heating portion during operation in some embodiments of the present application;

[0050] FIG11 is a schematic diagram of heating energy supply to a first heating portion and a second heating portion in some embodiments of the present application;

[0051] FIG12 is a flow chart of the control method in other embodiments of the present application. DETAILED DESCRIPTION

[0052] The present application is described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present application, but are not intended to limit the present application in any form. It should be noted that those skilled in the art may make several variations and improvements without departing from the scope of the present application. These all fall within the scope of protection of the present application.

[0053] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0054] It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other and are all within the scope of protection of the present application. In addition, although the functional modules are divided in the device schematic and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a different order than the module division in the device or the order in the flow chart. In addition, the words "first", "second", "third", etc. used herein do not limit the data and execution order, but only distinguish between the same items or similar items with basically the same functions and effects.

[0055] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0056] In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0057] One embodiment of the present application provides an aerosol generating device 100 that heats, rather than burns, an aerosol generating article 1000 , such as a cigarette, to volatilize or release at least one component of the aerosol generating article 1000 to form an aerosol for inhalation, as shown in FIG1 .

[0058] In an alternative embodiment, the aerosol-generating article 1000 preferably comprises a tobacco-containing material that releases volatile compounds from the substrate when heated; or a non-tobacco material that can be heated and then suitable for electrically heated smoking. The aerosol-generating article 1000 preferably comprises a solid substrate that may comprise one or more of powder, granules, shredded strips, ribbons, or flakes of one or more of herb leaves, dried flowers, volatile aroma-producing herbal crops, tobacco leaves, homogenized tobacco, and expanded tobacco; or the solid substrate may contain additional tobacco or non-tobacco volatile aroma compounds that are released when the substrate is heated.

[0059] As shown in FIG. 1 , after the aerosol generating article 1000 is received in the aerosol generating device 100 , a portion thereof is exposed outside the aerosol generating device 100 , such as a filter tip, for the user to inhale.

[0060] The structure of an aerosol generating device 100 according to one embodiment of the present application can be seen in FIG1 . The overall appearance of the device is generally configured as a flat cylinder. The external components of the aerosol generating device 100 include:

[0061] The housing 10 essentially defines the outer surface of the aerosol generating device, and its interior is a hollow structure, thereby forming an assembly space for necessary functional components such as electronic components and heating components. The housing 10 has a proximal end 110 and a distal end 120 that are opposite to each other in the longitudinal direction; in use, the proximal end 110 is the end closest to the user for easy operation, storage, heating, and inhalation of the aerosol generating article 1000; the distal end 120 is the end away from the user.

[0062] The proximal end 110 is provided with a receiving opening 111 , through which the aerosol generating article 1000 can be received into the housing 10 to be heated or removed from the housing 10 ;

[0063] The distal end 120 is provided with an air inlet 121 ; the air inlet 121 is used to allow external air to enter the housing 10 during the suction process.

[0064] In some examples, housing 10 may be formed of a metal or alloy such as stainless steel, aluminum, or the like. Other suitable materials include various plastics (eg, polycarbonate), metal-plating over plastic, ceramics, and the like.

[0065] As shown in FIG1 , the aerosol generating device 100 further includes:

[0066] The chamber is used to accommodate or receive the aerosol-generating article 1000 ; in use, the aerosol-generating article 1000 can be removably received in the chamber through the receiving opening 111 .

[0067] As shown in FIG1 , the aerosol generating device 100 further includes:

[0068] The air channel 150 is located between the chamber and the air inlet 121 ; in use, the air channel 150 provides a passage path from the air inlet 121 into the chamber / aerosol generating article 1000 , as shown by arrow R11 in FIG. 1 .

[0069] As shown in FIG1 , the aerosol generating device 100 further includes:

[0070] A battery cell 130 for power supply; preferably, the battery cell 130 is a rechargeable DC battery cell 130 and can be charged by connecting to an external power source;

[0071] The circuit 140 is arranged or integrated with various components for controlling the heating or operation of the aerosol generating device 100 .

[0072] As shown in FIG1 , the aerosol generating device 100 further includes:

[0073] The heater 30 at least partially surrounds and defines a chamber. When the aerosol-generating article 1000 is received in the housing 10, the heater 30 at least partially surrounds or encloses the aerosol-generating article 1000 and heats the aerosol-generating article 1000 from the periphery. Furthermore, when the aerosol-generating article 1000 is received in the housing 10, it is at least partially contained and retained within the heater 30.

[0074] 2 and 3 , the heater 30 is configured in a substantially longitudinal tubular shape and includes:

[0075] A tubular substrate 31 is disposed around the chamber. In some embodiments, the tubular hollow space 330 of the substrate 31 surrounds and defines the chamber for receiving the aerosol-generating article 1000. The substrate 31 is made of a material with good thermal conductivity, such as ceramic, glass, or a surface-insulating metal or alloy such as anodized aluminum, aluminum alloy, copper alloy, or stainless steel. During use, the substrate 31 at least partially defines a chamber for receiving and retaining the aerosol-generating article 1000. In some embodiments, the thermal conductivity of the substrate 31 is at least 10 W / mK, preferably at least 100 W / mK. Alternatively, in some embodiments, the thermal conductivity of the substrate 31 is greater than 200 W / mK or higher. In some embodiments, the substrate 31 comprises a metal having a high thermal conductivity, such as aluminum, copper, titanium, or an alloy containing at least one of these.

[0076] In some specific implementations, the substrate 31 has a wall thickness of about 0.05 to 1 mm; the substrate 31 has an inner diameter of about 5.0 to 8.0 mm; and the substrate 31 has a length of about 30 to 60 mm. In some implementations, the length of the aerosol-generating article 1000 surrounded or enclosed by the substrate 31 is greater than 30 mm; or the length of the aerosol-generating article 1000 heated by the substrate 31 is greater than 30 mm.

[0077] 2 and 3 , the heater 30 further includes:

[0078] The heating element 32 at least partially surrounds or encloses the substrate 31 ; in use, the substrate 31 in turn heats the aerosol-generating article 1000 by receiving or transferring heat from the heating element 32 .

[0079] In some embodiments, the heating element 32 comprises a resistive heating element; and the heating element 32 can generate resistive Joule heating and generate heat when a direct current flows through the heating element 32. Furthermore, in some embodiments, the heating element 32 is made of a metal material, metal alloy, graphite, carbon, conductive ceramic, or other ceramic and metal composite material with appropriate impedance. Suitable metal or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, iron-manganese-aluminum-based alloy, or stainless steel. Alternatively, in still other embodiments, the heating element 32 may also comprise an electromagnetic induction heating element or an infrared heating element.

[0080] Or in some alternative implementations, the heater 30 may include only the heating element 32 , with the heating element 32 surrounding or defining a chamber for accommodating the aerosol-generating article 1000 and directly transferring heat to the aerosol-generating article 1000 for heating.

[0081] As further shown in Figures 2 and 3, the heating element 32 is configured to be cylindrical in shape, surrounding or enclosing the outside of the base 31. Also, the extension dimension of the heating element 32 along the longitudinal direction of the heater 30 is smaller than the extension dimension of the base 31; for example, in some specific implementations, the heating element 32 has a length greater than 20 to 50 mm. For example, specifically, according to Figures 2 and 3, the heater 30 includes a first end 310 and a second end 320 that are opposite to each other in the longitudinal direction; and in a specific implementation, the first end 310 and the second end 320 are defined by the two ends of the base 31 in the longitudinal direction. The first end of the heating element 32 is spaced apart from the first end 310 by a distance d1 of approximately 3 to 10 mm; and the second end of the heating element 32 is spaced apart from the second end 320 by a distance d2 of approximately 3 to 10 mm.

[0082] After assembly, the heating element 32 does not completely wrap around or enclose the outer surface of the substrate 31, resulting in the outer surface of the substrate 31 having a first exposed area 311 defined by a distance d1 near the first end 310. Furthermore, the outer surface of the substrate 31 has a second exposed area 312 defined by a distance d2 near the second end 320. During assembly, the aerosol generating device 100 supports the heater 30 by engaging with a clamping member, a supporting member, or a fixing member in the first exposed area defined by the distance d1 and the second exposed area defined by the distance d2.

[0083] In some embodiments, the heating element 32 is insulated from the substrate 31. In some conventional embodiments, a surface insulating layer may be formed on the outer surface of the substrate 31 by surface anodization, spraying, deposition, or the like. The surface insulating layer may include at least one of an oxide, a glaze, a ceramic, an organic polymer, or the like. Alternatively, in still other embodiments, a thin film of an insulating organic polymer is disposed between the heating element 32 and the substrate 31 to provide insulation therebetween; for example, the thin film may be a polyimide film or a polytetrafluoroethylene film.

[0084] As shown in Figures 2 to 4 , the heating element 32 is a resistive heating mesh. In this embodiment, the heating element 32 is wound around a sheet or mesh substrate. The wound heating element 32 is not a closed tubular shape in the circumferential direction, but rather a cylindrical shape with a side opening 335 extending longitudinally. The side opening 335 extends from a first end to a second end of the heating element 32 in the longitudinal direction. In some embodiments, the side opening 335 has a width of approximately 2 to 6 mm.

[0085] Alternatively, in some alternative embodiments, the surface of the substrate 31 is insulated, and the heating element 32 is a resistive heating track, a thin film, or a coating formed on the substrate 31 by printing, spraying, deposition, or the like. For example, the heating element 32 is a resistive heating track that meanders along a circumferential direction; or, the heating element 32 is a patterned resistive heating track.

[0086] Alternatively, in some alternative embodiments, the heating element 32 is an infrared emitting coating formed on the substrate 31 by printing, spraying, deposition, or the like. The heating element 32 is an electrically induced infrared emitting coating that, when current flows through the infrared emitting coating, emits infrared rays into the chamber to heat the aerosol-generating article 1000. The infrared emitting coating for radiating infrared rays may include oxides of at least one or more metal elements, such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, and Zn. These metal oxides, when electrically heated to an appropriate temperature, can radiate far-infrared rays having a heating effect.

[0087] As shown in Figures 2 to 4, the heating element 32 includes:

[0088] The first heating portion 321 and the second heating portion 322 are arranged in the axial or longitudinal direction; the first heating portion 321 is closer to the proximal end 110 and / or the first end 310, and the second heating portion 322 is closer to the distal end 120 and / or the second end 320;

[0089] A distance d3 is defined between the first heating portion 321 and the second heating portion 322; this distance d3 prevents the first heating portion 321 and the second heating portion 322 from being arranged discontinuously. Furthermore, the distance d3 separates the first heating portion 321 and the second heating portion 322, thereby separating them longitudinally. In some embodiments, the distance d3 is approximately 3 to 10 mm in length. Furthermore, after assembly, the distance d3 defines a third exposed area 313 on the surface of the substrate 31.

[0090] Figure 4 shows a schematic diagram of the heating element 32 after circumferential deployment. In this embodiment, the first heating portion 321 and the second heating portion 322 of the deployed heating element 32 are mesh-shaped. Furthermore, the deployed heating element 32 is longer than its width. For example, in Figure 4 , the deployed heating element 32 has a length dimension of approximately 32.8 mm and a width dimension of approximately 18.7 mm. Furthermore, a ratio of the length dimension to the width dimension of the heating element 32 of at least 1.5 or greater is advantageous for reducing resistance and increasing power within a given area. Furthermore, in some embodiments, by ensuring that the ratio of the length dimension to the circumferential extension or perimeter of the heating element 32 is at least 1.5 or greater, the resistance of the heating element 32 can be further reduced to 0.6Ω or lower by directing current around the circumference of the heating element 32. Alternatively, in other embodiments, directing current around the circumference of the heating element 32 can further reduce the resistance of the heating element 32 to 0.3Ω or lower, advantageously controlling the overall resistance of the heating element 32 to between 0.2 and 0.6Ω.

[0091] As further shown in FIG4 , in the deployed heating element 32, the first heating portion 321 is adjacent to or defines the first end, and the second heating portion 322 is adjacent to or defines the second end. In some embodiments, the first heating portion 321 has an extension length substantially equal to the extension length of the second heating portion 322; or, the first heating portion 321 and the second heating portion 322 have substantially the same extension length; for example, in one specific embodiment, the first heating portion 321 and / or the second heating portion 322 have a length of approximately 15 mm. In yet other variations, the first heating portion 321 has an extension length greater than the extension length of the second heating portion 322; or, the second heating portion 322 is longer than the first heating portion 321.

[0092] In use, the electrodes are arranged circumferentially and spaced apart to guide the current in the circumferential direction of the first heating portion 321 and the second heating portion 322 of the heating element 32. The unfolded heating element 32 includes a first side 3210 and a second side 3220 that are opposite to each other in the width direction. The heater 30 also includes:

[0093] A first electrode 331, such as an elongated conductive wire, extends from the first end of the heating element 32 to the outside of the second end; and the first electrode 331 is coupled to and electrically conductive with the first heating portion 321 and the second heating portion 322 at the first side 3210;

[0094] A second electrode 332 , such as an elongated conductive wire, is coupled to the first heating portion 321 at the second side 3220 and is electrically conductive;

[0095] The third electrode 333 , such as an elongated conductive wire, is coupled to the second heating portion 322 at the second side 3220 and is electrically conductive.

[0096] After being arranged on the base body 31 , the first side 3210 and the second side 3220 define the side opening 335 ; alternatively, the side opening 335 is located between the first side 3210 and the second side 3220 along the circumferential direction.

[0097] The first electrode 331 and / or the second electrode 332 and / or the third electrode 333 are made of a relatively low resistivity, excellent conductor metal, such as gold, silver, copper, or alloys thereof. During use, the first electrode 331 and / or the second electrode 332 and / or the third electrode 333 can conduct current in the circumferential direction of the first heating portion 321 and the second heating portion 322. Furthermore, the first electrode 331 and / or the second electrode 332 and / or the third electrode 333 are securely coupled to the heating element 32 by welding or other means to form a conductive structure.

[0098] The heating element 32 is provided with holes, which are arranged in a matrix, array, or regular pattern, giving the heating element 32 a mesh-like shape. In the embodiment shown in FIG4 , the holes are rectangular; and the holes are larger along the length of the heating element 32 than along its circumference or width. Alternatively, the holes extend along the length of the heating element 32.

[0099] Or in some other variations, the heating element 32 has more heating parts, such as a third heating part arranged in sequence with the second heating part 322 in the longitudinal direction; or it may also include a fourth heating part, a fifth heating part, and so on.

[0100] Accordingly, the heater 30 may further include: more electrodes. And some of the electrodes may serve as common electrodes for multiple heating parts. For example, in some specific embodiments, the heater 30 may include:

[0101] a first heating portion 321, a second heating portion 322, and a third heating portion;

[0102] The first electrode 331 is arranged on the first side 3210, extends from the first heating portion 321 to the second heating portion 322, and is electrically conductive with the first heating portion 321 and the second heating portion 322;

[0103] The second electrode 332 is arranged on the second side 3220 and is only combined with the first heating portion 321 to form a conductive structure;

[0104] The third electrode 333 is arranged on the second side 3220, extends from the second heating portion 321 to the third heating portion, and is electrically conductive with the second heating portion 322 and the third heating portion;

[0105] The fourth electrode is arranged on the first side 3210 and is only combined with the third heating portion to form electrical conduction.

[0106] In practice, by adjusting the connection method between the above electrodes and the circuit, one of the first heating part 321, the second heating part 322 and the third heating part can be selectively heated alone, two of them can be heated in parallel or in series, or all three can be heated in parallel or in series or in mixed connection at the same time.

[0107] Specifically, the holes on the heating element 32 include:

[0108] A first hole 3211 is arranged on the first heating portion 321;

[0109] The second hole 3221 is arranged on the second heating portion 322 .

[0110] In some implementations, the first holes 3211 in the first heating portion 321 and / or the second holes 3221 in the second heating portion 322 are formed by laser cutting or etching, etc., on a sheet-like substrate before being wound to form the heating element 32. The first holes 3211 in the first heating portion 321 are arranged in an array, so that the first heating portion 321 has a grid shape; and the second holes 3221 in the second heating portion 322 are arranged in an array, so that the second heating portion 322 has a grid shape.

[0111] 2 and 4 , the first hole 3211 and / or the second hole 3221 are rectangular holes. Alternatively, in some alternative embodiments, the first hole 3211 and / or the second hole 3221 may be circular, triangular, polygonal, or the like.

[0112] In some embodiments, the area of ​​the first hole 3211 in the first heating portion 321 is smaller than the area of ​​the second hole 3221 in the second heating portion 322. Alternatively, the length of the first hole 3211 in the first heating portion 321 is smaller than the length of the second hole 3221 in the second heating portion 322; or the width of the first hole 3211 in the first heating portion 321 is smaller than the width of the second hole 3221 in the second heating portion 322. For example, in some implementations, the first hole 3211 has a length of approximately 3 to 7 mm and a width of 0.2 to 0.8 mm; and the second hole 3221 has a length of approximately 4 to 8 mm and a width of 0.7 to 1.2 mm.

[0113] Alternatively, in some further variations, the first hole 3211 and / or the second hole 3221 can also be arranged so that the extension dimension along the circumference of the heating element 32 is greater than the extension dimension along the longitudinal direction of the heating element 32; that is, the first hole 3211 and / or the second hole 3221 has a shape that is longer in the circumferential direction.

[0114] In the embodiment shown in FIG4 , the spacing d31 between adjacent first holes 3211 in the first heating portion 321 along the width direction is approximately 0.5 mm; and the spacing d32 between adjacent first holes 3211 along the length direction is approximately 0.5 mm. Also in the embodiment shown in FIG4 , the spacing d33 between adjacent second holes 3221 in the second heating portion 322 along the width direction is approximately 0.2 mm; and the spacing d34 between adjacent second holes 3221 along the length direction is approximately 0.2 mm.

[0115] As shown in FIG4 , the heating element 32 further includes:

[0116] Connecting portion 324 is disposed on first side 3210 and extends from first heating portion 321 to second heating portion 322, thereby electrically connecting first heating portion 321 and second heating portion 322. Connecting portion 324 closes gap d33 on first side 3210 and opens gap d33 on second side 3220.

[0117] In some embodiments, the heating element 32 including the first heating portion 321, the connecting portion 324, and the second heating portion 322 is integrally formed or manufactured. For example, the first heating portion 321, the connecting portion 324, and the second heating portion 322 are integrally formed by etching, cutting, or otherwise removing excess portions from a sheet-like substrate precursor.

[0118] In the embodiment, the first electrode 331 is combined with the connecting portion 324 and is electrically conductive to each other; thus, it is beneficial to improve the stability of the electrical connection between the first electrode 331 and the first heating portion 321 and the second heating portion 322 .

[0119] In the embodiment shown in FIG4 , the width of the first heating portion 321 can be greater than the width of the second heating portion 322; thus, when the first heating portion 321 and the second heating portion 322 are flush on the first side 3210, the first heating portion 321 slightly protrudes relative to the second heating portion 322 on the second side 3220. Consequently, after welding the second electrode 332 and the third electrode 333, the elongated second electrode 332 and the third electrode 333 / the second heating portion 322 are offset along the longitudinal direction of the heating element 32, which is beneficial for preventing short circuits between them.

[0120] Alternatively, in some alternative embodiments, the width of the first heating portion 321 may be equal to the width of the second heating portion 322; then, after welding the elongated second electrode 332 and the third electrode 333, insulation tubes may be sleeved on the second electrode 332 and the third electrode 333 or a surface insulation layer may be sprayed on the surface to provide insulation, thereby preventing them from contacting and forming a short circuit during assembly.

[0121] During use, any two or three of the first electrode 331, the second electrode 332, and the third electrode 333 can be selectively connected to the circuit 140, thereby selectively directing current to the first heating portion 321 and / or the second heating portion 322 of the heating element 32. Specifically, for example, the first electrode 331, the second electrode 332, and the third electrode 333 can be selectively connected to the circuit 140 via a switching transistor, such as a MOS transistor, that can be switched between an on state and an off state, thereby changing the heating section of the aerosol-generating article 1000 by the heating element 32.

[0122] By selectively connecting the first electrode 331, the second electrode 332 and the third electrode 333 to the circuit 140 in different electrical connection modes, it is possible to selectively heat only one of the first heating part 321 and the second heating part 322, or it is possible to selectively heat the first heating part 321 and the second heating part 322 simultaneously in series or in parallel.

[0123] Specifically, for example, one of the first heating part 321 or the second heating part 322 can be started to heat while the other one is not started and not heated, thereby heating a part of the section of the aerosol generating article 1000 separately; for another example, the first heating part 321 or the second heating part 322 can be connected to the circuit 140 in different series or parallel ways, so that the first heating part 321 or the second heating part 322 can simultaneously heat different sections of the aerosol generating article 1000 with different powers, thereby forming different temperatures in the sections of the aerosol generating article 1000 surrounded by the first heating part 321 or the second heating part 322, thereby forming different aerosol generation efficiencies.

[0124] Specifically, for example, FIG5 shows a schematic diagram of an embodiment in which a first electrode 331 and a second electrode 332 are connected to the circuit 140, respectively, so that the first electrode 331 and the second electrode 332 are connected to the positive and negative electrodes of the battery cell 130, respectively, to form a loop, thereby directing a current i11 on the first heating portion 321. As shown in FIG5 , in the closed loop connection method formed in the manner of FIG5 , a circumferential operating current is generated only on the first heating portion 321, while no current flows on the second heating portion 322.

[0125] As shown in Figure 5, when current is guided on the first heating portion 321 through the first electrode 331 and the second electrode 332, a plurality of resistance conductor paths are formed on the first heating portion 321 along the circumferential direction from the first electrode 331 to the second electrode 332; these plurality of resistance conductor paths basically extend in a circuitous manner; and these plurality of resistance conductor paths are defined by a plurality of first holes 3211.

[0126] Specifically, for example, FIG6 shows a schematic diagram of another embodiment in which the first electrode 331 and the third electrode 333 are connected to the circuit 140 respectively, so that the first electrode 331 and the third electrode 333 are connected to the positive and negative electrodes of the battery cell 130 respectively to form a loop, thereby guiding the current i21 on the second heating portion 322. As shown in FIG6, in the connection method of forming a closed loop in the manner of FIG6, a circumferential working current is formed only on the second heating portion 322, while no current is formed on the first heating portion 321. As shown in FIG6, when the current is guided on the second heating portion 322 through the first electrode 331 and the second electrode 332, a plurality of resistive conductor paths are formed on the second heating portion 322 along the circumferential direction from the first electrode 331 to the third electrode 333; these plurality of resistive conductor paths basically extend in a circuitous manner; and these plurality of resistive conductor paths are defined by a plurality of second holes 3221.

[0127] In the embodiments of Figures 5 and 6 , the path width of current i11 is greater than the path width of current i21. Therefore, when current is guided circumferentially along the first and second heating portions 321 and 322 in the manner of Figures 5 or 6 , the resistance of the first heating portion 321 is less than the resistance of the second heating portion 322.

[0128] FIG7 shows a schematic diagram of another embodiment of simultaneously directing current in parallel with the first heating portion 321 and the second heating portion 322. In FIG7, by connecting the first electrode 331 to the circuit 140 and thereby conducting with the positive electrode of the battery cell 130, and connecting the second electrode 332 and the third electrode 333 to the circuit 140 and thereby conducting with the negative electrode of the battery cell 130, a circumferential current i12 is generated on the first heating portion 321, and a circumferential current i22 is generated on the second heating portion 322, thereby heating the first heating portion 321 and the second heating portion 322 simultaneously. Furthermore, the voltage across the parallel first heating portion 321 and the second heating portion 322 is the same. According to the power-voltage-resistance relationship equation (P=U2 / R), the resistance of the first heating portion 321 is relatively small, resulting in the first heating portion 321 having a greater heating power than the second heating portion 322.

[0129] FIG8 shows a schematic diagram of another embodiment in which the first heating part 321 and the second heating part 322 are simultaneously connected in series to conduct current. In FIG8 , the second electrode 332 is connected to the circuit 140 and then connected to the positive pole of the battery cell 130, and the third electrode 333 is connected to the circuit 140 and then connected to the negative pole of the battery cell 130; and in this embodiment, the first electrode 331 is not connected to the circuit, thereby forming a series arrangement of the first heating part 321 and the second heating part 322 in FIG8 . And in FIG8 , the total current i13 on the first heating part 321 and the total current i23 on the second heating part 322 are the same. According to the relationship formula of power, current and resistance value P=I 2 ×R, when the resistance of the first heating part 321 is smaller than that of the second heating part 322 , the power of the first heating part 321 is smaller than that of the second heating part 322 .

[0130] In practice, the circuit 140 can selectively adopt any one of the methods shown in FIG. 5 to FIG. 8 to power the heating element 32 , thereby heating only one of the first heating portion 321 and the second heating portion 322 or heating both of them simultaneously.

[0131] Or in some other variations, the heater 30 further includes:

[0132] Insulating elements are used to surround or enclose the heating elements 32 on the outside to provide insulation on their outside. The insulating elements are, for example, wound aerogel felt, or porous materials or vacuum tubes. Or in some other variations, the insulating element of the heater 30 is a tube with an inner insulating cavity; there is an insulating cavity between the inner surface and the outer surface of the tubular insulating element, and the pressure of the insulating cavity is less than the pressure outside, that is, the insulating element is a vacuum insulated tube with a vacuum degree. Or in some other variations, there is an insulating cavity between the inner surface and the outer surface of the tubular insulating element, and the insulating cavity is filled with an insulating gas, such as argon; the thermal conductivity of argon is about one-third less than that of air at the same pressure and temperature, which effectively provides insulation.

[0133] Or in some other variations, the heater 30 further includes:

[0134] The temperature sensor is attached to the first heating portion 321 to sense the temperature of the first heating portion 321 .

[0135] Or in some other variations, the heater 30 further includes:

[0136] The thermoplastic close-fitting member surrounds the temperature sensor outside the heater 30 to wrap and fasten the first temperature sensor.

[0137] In some embodiments, the thermoplastic clinging member includes at least one of a heat-resistant synthetic resin, polytetrafluoroethylene (PTFE) such as Teflon, and silicon; in some other variations, the thermoplastic clinging member includes a heat shrink tube or a high-temperature-resistant tape.

[0138] The following describes the control methods provided in some embodiments of the present application, using exemplary applications and implementations of the aerosol generating devices provided in the present application. Please refer to Figure 9, which is a flow chart illustrating the control methods provided in some embodiments of the present application. It is understood that the execution entity of the control method can be one or more controllers of a circuit.

[0139] As shown in FIG3 , the method S10 may specifically include the following steps:

[0140] S11: In at least one heating stage among the multiple heating stages, controlling the battery cell to alternately provide heating energy to the first heating part and the second heating part; wherein the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

[0141] Controlling the battery cells to alternately provide heating energy to the first and second heating sections is suitable for situations where the resistance of the first and second heating sections is relatively low. This avoids the problem of the battery cells being unable to support excessive current when the first and second heating sections are heated simultaneously. It is understood that in other examples, when appropriate battery cells are selected, simultaneous heating of the first and second heating sections is also feasible.

[0142] It is understood that the duration from the start of heating after the aerosol generating device is activated to the end of heating by the aerosol generating device can be divided into different heating stages based on the temperature mutation of the first heating part or the second heating part. Taking Figure 10 as an example, curve A in the figure is a curve showing the relationship between the temperature of the first heating part and time, and curve B in the figure is a curve showing the relationship between the temperature of the second heating part and time; wherein, the entire duration can be divided into a first heating stage T1, a second heating stage T2, a third heating stage T3, and a fourth heating stage T4, and the duration of each heating stage is distributed as T1, T2, T3, and T4. Of course, the duration can also be divided into different heating stages based on other parameters, such as: the ratio coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part, the duration of heating, etc. The number of heating stages is not limited to the above situation.

[0143] During the first heating stage T1, the temperature of the first heating portion needs to be rapidly increased, for example, from the initial temperature (ambient temperature) to 200°C to 350°C, specifically 280°C, to generate aerosol or to generate a satisfactory amount of aerosol to meet the user's puffing needs. The first heating stage T1 typically takes a short time, for example, 15s to 30s. In some examples, the curve portion A corresponding to the first heating stage T1 also includes a heat preservation stage, that is, after the temperature of the first heating portion is raised to the maximum operating temperature, the first heating portion is controlled to maintain the maximum operating temperature for a period of time.

[0144] During the first heating stage T1, the temperature of the second heating portion is slowly increased from an initial temperature (ambient temperature) to a first target temperature. The first target temperature is lower than the maximum operating temperature of the first heating portion, for example, approximately 120°C. The first target temperature is sufficient to raise the temperature of the substrate in the portion of the aerosol-generating article corresponding to the second heating portion, but not high enough to cause aerosol generation in that portion of the substrate. The second heating portion can be activated simultaneously with the first heating portion, or it can be activated only after the first heating portion reaches its maximum operating temperature.

[0145] At the end of the first heating stage T1, the aerosol generating device outputs a prompt signal indicating that the aerosol is ready for inhalation to prompt the user to inhale. The prompt may be in the form of vibration, sound, light (such as a LED light that is constantly on or flashing), etc.

[0146] During the second heating phase T2, the user can inhale the aerosol generated by the heating of the first heating portion. During the second heating phase T2, the temperature of the first heating portion drops to and is maintained at a first preset temperature, for example, to 250°C. The temperature of the second heating portion is slowly increased from the first target temperature to a second target temperature. The second target temperature should still be lower than the maximum operating temperature of the first heating portion or lower than the first preset temperature of the first heating portion, for example, around 180°C. The second target temperature further raises the temperature of the substrate in the portion of the aerosol-generating article corresponding to the second heating portion, but still not high enough to generate aerosol from that portion of the substrate.

[0147] During the third heating stage T3, the temperature of the first heating portion remains at the first preset temperature. During this heating stage, the substrate in the portion of the aerosol-generating article corresponding to the first heating portion will gradually decrease, necessitating replenishment from the substrate in the portion of the aerosol-generating article corresponding to the second heating portion. This prevents a reduction in the amount of aerosol inhaled by the user or the amount of substance contained therein, which could lead to a reduced user experience. Therefore, the temperature of the second heating portion must be raised from the second target temperature to the first preset temperature to generate aerosol.

[0148] In the fourth heating stage T4, the substrate in the portion of the aerosol-generating article corresponding to the first heating portion will further decrease or will be almost completely consumed. At this point, the temperature of the first heating portion may be lowered to and maintained at a second preset temperature, for example, to 230° C. The temperature of the second heating portion still needs to be maintained at the first preset temperature to further provide an inhalable aerosol.

[0149] In the above-mentioned first heating stage T1 to fourth heating stage T4, in at least one heating stage, the battery cell is controlled to alternately provide heating energy to the first heating portion and the second heating portion.

[0150] Taking the second heating stage T2 as an example, as shown in Figure 11, the second heating stage T2 is divided into multiple time periods, and the duration of each time period can be the same or different. Preferably, the duration of each time period is the same, and the duration of each time period as shown in the figure is t. In some embodiments, the time period t can range from 200ms to 1s. For example, taking the time period t as 200ms and the second heating stage T2 as 60s, the second heating stage T2 can be divided into 300 time periods t.

[0151] Please refer to Figure 11 again. During any time period t, the battery cells are controlled to alternately provide heating energy to the first heating portion and the second heating portion. Alternating means that at a given moment, the battery cells only provide heating energy to one of the first heating portion and the second heating portion, and do not provide heating energy to both the first heating portion and the second heating portion at the same time. When the heating energy supply to the first heating portion ends, the heating energy supply to the second heating portion begins, and when the heating energy supply to the second heating portion ends, the heating energy supply to the first heating portion begins.

[0152] During any time period t, the battery cells are controlled to alternately provide heating energy to the first heating portion and the second heating portion, so that the first heating portion and the second heating portion are alternately heated at least once. That is, in some embodiments, during the time period t, the first heating portion and the second heating portion may be alternately heated multiple times.

[0153] By dividing the second heating stage T2 into multiple time periods t, since the duration set by the time period t is relatively short, such as 200ms, for example, less than 1s, the time during which the first heating part or the second heating part is in a natural cooling state without being provided with heating energy (also referred to as a natural cooling stage) within the time period t is also very short, so the temperature drop of the first heating part or the second heating part in the natural cooling state is also very limited; and in the next time period t, the temperature drop caused by natural cooling of the first heating part or the second heating part will also be quickly replenished with heating energy so that the temperature can be maintained and / or increased. Thus, the embodiment of the present application does not affect the speed of aerosol generation. Compared to the situation where the first heating part and the second heating part are heated simultaneously throughout the entire process, the embodiment of the present application alternately provides heating energy to the first heating part and the second heating part within each time period t, which can effectively save power consumption and improve endurance.

[0154] In some embodiments, each time period t includes a first partial time period and a second partial time period;

[0155] The aforementioned step S11 specifically includes:

[0156] S111: During a first time period, the battery cell is controlled to provide heating energy to the first heating portion, and to stop providing heating energy to the second heating portion.

[0157] S112: During the second time period, the battery cell is controlled to provide heating energy to the second heating portion, and the heating energy to the first heating portion is stopped.

[0158] When the first heating phase T1 ends and the second heating phase T2 begins, the next time period t begins at intervals of a certain time. Within the current time period t, for the first portion of the time period, the battery cells are controlled to provide heating energy to the first heating portion while simultaneously stopping heating energy to the second heating portion. After the cumulative time within the current time period t reaches the duration of the first portion of the time period, the second portion of the time period begins. At this point, the battery cells are controlled to provide heating energy to the second heating portion while simultaneously stopping heating energy to the first heating portion. After the cumulative time within the current time period t reaches t, the next time period t begins.

[0159] In this embodiment, by timing, according to the set duration, the battery cell is controlled to alternately provide heating energy to the first heating part and the second heating part, so that the first heating part and the second heating part can be accurately heated alternately, thereby uniformly baking the aerosol-generating product, providing an aerosol with a good taste, and effectively saving electricity consumption and improving battery life.

[0160] In some embodiments, the aforementioned step S11 specifically includes:

[0161] S113: In each time period t, when the first heating part is in a natural cooling state or the battery cell stops providing heating energy to the first heating part or controls the battery cell to provide heating energy to the second heating part, detect the real-time temperature of the first heating part. If the real-time temperature is less than or equal to the preset first low temperature threshold, control the battery cell to provide heating energy to the first heating part and stop providing heating energy to the second heating part.

[0162] The natural cooling state refers to a state where no heating energy is being supplied. For example, when the battery cell supplies heating energy to the second heating portion and stops supplying heating energy to the first heating portion, the first heating portion is in the natural cooling state. During the natural cooling state, the temperature of the first and / or second heating portions will drop due to outward heat dissipation, but the degree of temperature drop will vary depending on the insulation performance of different heating components.

[0163] When the first heating part is in a natural cooling state, the temperature sensor detects the real-time temperature of the first heating part. If the real-time temperature is less than or equal to the preset temperature threshold, the battery cell is controlled to provide heating energy to the first heating part and stop providing heating energy to the second heating part.

[0164] The temperature threshold is the lower limit of the temperature required to be provided by the first heating part. In some embodiments, those skilled in the art can set the temperature threshold according to the heat preservation performance of the heating component or other factors.

[0165] Specifically, during a certain time period t, the first heating section is in a natural cooling state, meaning the battery cells stop providing heating energy to the first heating section. Since the battery cells alternately provide heating energy to the first and second heating sections, when the first heating section is in a natural cooling state, the battery cells provide heating energy to the second heating section. During this period, if the real-time temperature of the first heating section is detected to be below a temperature threshold, indicating excessive heat loss, the battery cells are controlled to immediately provide heating energy to the first heating section and stop providing heating energy to the second heating section to maintain the temperature of the first heating section.

[0166] In this embodiment, within the time period t, by detecting the real-time temperature of the first heating part, if the real-time temperature is less than or equal to the preset temperature threshold, the battery cell is controlled to provide heating energy to the first heating part and stop providing heating energy to the second heating part, so as to fully ensure that the first heating part can quickly reach the predetermined temperature, and the first heating part will not cause excessive temperature drop due to heat dissipation when it is in a natural cooling state, thereby affecting the heating work of the aerosol generating device, and evenly baking the aerosol generating product to provide an aerosol with a good taste, and can also effectively save power consumption and improve battery life.

[0167] In some embodiments, the aforementioned step S11 specifically includes:

[0168] S114: In each time period t, when the battery cell provides heating energy to the first heating portion, if the heating energy provided to the first heating portion is greater than or equal to a preset first energy threshold, the battery cell is controlled to stop providing heating energy to the first heating portion and start providing heating energy to the second heating portion; or,

[0169] In each time period t, when the battery cell provides heating energy to the second heating part, if the heating energy provided to the second heating part is greater than or equal to a preset second energy threshold, the battery cell is controlled to stop providing heating energy to the second heating part.

[0170] In this embodiment, the energy supplied by the battery cells to the first heating portion during each time period t is pre-set. Specifically, a first energy threshold is set, which is the rated amount of heating energy provided by the battery cells to the first heating portion during time period t. It will be appreciated that those skilled in the art may set the first energy threshold based on the insulation performance of the heating assembly or other factors.

[0171] The first energy threshold can be the minimum heating energy required to heat the first heating portion within time period t. For example, using the current time period t as an example, upon entering the current time period t, the control cell first supplies heating energy to the first heating portion, and the energy supplied to the first heating portion within the current time period t is measured from zero. If the supplied energy is greater than or equal to the first energy threshold, indicating that the supplied energy has reached the rated amount, the control cell stops supplying heating energy to the first heating portion and begins supplying heating energy to the second heating portion, achieving alternating heating.

[0172] In this embodiment, by accumulating the energy supplied to the first heating part in each time period t and supplying it according to the set rated amount of heating energy, the first heating part and the second heating part can be accurately heated alternately to evenly bake the aerosol-generating product, provide an aerosol with a good taste, and effectively save electricity consumption and improve battery life.

[0173] Similarly, the energy supplied by the battery cell to the second heating portion is also pre-set. Specifically, within each time period t, the heating energy supplied to the second heating portion is proportional to the heating energy supplied to the first heating portion, and is in direct proportion (assuming the proportionality coefficient is k). Thus, if the energy supplied to the second heating portion is greater than or equal to the second energy threshold, indicating that the supplied energy has reached the rated amount, the battery cell is controlled to stop supplying heating energy to the second heating portion and start supplying heating energy to the first heating portion, thereby achieving alternating heating.

[0174] The proportional coefficient k remains unchanged in each heating stage, so that the temperature of the second heating part rises gradually in a wave-like manner, avoiding sudden changes in the temperature of the second heating part during the heating stage and ensuring that the heating temperature of the second heating part is within a safe range.

[0175] When entering the next heating stage from the previous heating stage, the value of the proportional coefficient k can be adjusted or changed to increase the temperature of the second heating part and ensure that the second heating part is heated following the first heating part.

[0176] Taking the second heating stage T2 and the third heating stage T3 as an example, in the second heating stage T2, the ratio of the heating energy provided to the second heating portion to the heating energy provided to the first heating portion is k1. In the third heating stage T3, the ratio of the heating energy provided to the second heating portion to the heating energy provided to the first heating portion is k2. The ratio k2 is greater than the ratio k1. Thus, by increasing the ratio, the temperature of the second heating portion can be raised to the first preset temperature in the third heating stage T3, thereby generating aerosol.

[0177] FIG12 is a flow chart of the control method in other embodiments of the present application.

[0178] As shown in FIG12 , the method S20 may specifically include the following steps:

[0179] S21: In at least one heating stage among multiple heating stages, based on the real-time temperature of the first heating part detected by the temperature sensor, control the battery cell to provide heating energy to the first heating part and the second heating part; wherein the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

[0180] Unlike the previous example, in this example, the battery cell is controlled to provide heating energy to the first heating portion and the second heating portion at the same time, and the heating energy can be provided alternately or non-alternatingly (i.e., the first heating portion and the second heating portion are controlled to start heating at the same time, or the first heating portion and the second heating portion are controlled to stop heating at the same time). The alternating provision of heating energy and the proportionality of the heating energy provided to the second heating portion and the heating energy provided to the first heating portion can be referred to the description of the previous example.

[0181] In this example, the heating curve shown in Figure 10 can also be achieved. In other examples, the examples of Figure 9 or Figure 12 are also applicable to the situation where the first heating part and the second heating part start heating at the same time.

[0182] It should be noted that in the examples of Figures 9 or 12, the temperature sensor is provided on the first heating portion, and the second heating portion follows the first heating portion for temperature control. In other examples, the temperature sensor is provided on the second heating portion, and the first heating portion follows the second heating portion for temperature control, which is also feasible.

[0183] It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0184] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, or of course by hardware. Those skilled in the art can understand that all or part of the processes in the above embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0185] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Based on the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above. For the sake of simplicity, they are not provided in detail. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An aerosol generating device, characterized in that, Comprising: A heater for heating an aerosol-generating article to generate an aerosol; the heater includes a first heating part and a second heating part; A battery for providing power; A temperature sensor disposed on the first heating part; A circuit configured to control the battery to provide heating energy to the first heating part and the second heating part based on the real-time temperature of the first heating part detected by the temperature sensor during at least one heating stage among a plurality of heating stages; wherein, the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

2. The aerosol generating device according to claim 1, wherein It further includes a chamber for removably receiving the aerosol-generating article; The first heating part and the second heating part are arranged in sequence along the axial direction of the chamber.

3. The aerosol generating device according to claim 1, wherein The heating energy provided to the second heating part is in direct proportion to the heating energy provided to the first heating part.

4. The aerosol generating device according to claim 1, wherein, During the at least one heating stage, the proportionality coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part is constant.

5. The aerosol generating device according to claim 1, characterized in that, The circuit is configured to adjust or change the proportionality coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part when entering from a previous heating stage to a subsequent heating stage.

6. The aerosol generating device according to claim 1, wherein The circuit is configured to control the battery to provide heating energy to the first heating part and the second heating part simultaneously.

7. The aerosol generating device according to claim 6, characterized in that, The at least one heating stage includes a plurality of time periods; The circuit is configured to control the battery to alternately provide heating energy to the first heating part and the second heating part during the time period.

8. The aerosol generating device according to claim 7, wherein The time period includes a first partial time period and a second partial time period; The circuit is configured to: During the first partial time period, control the battery to provide heating energy to the first heating part and stop providing heating energy to the second heating part; During the second partial time period, control the battery to provide heating energy to the second heating part and stop providing heating energy to the first heating part.

9. The aerosol generating device according to claim 7, wherein The circuit is configured to, during the time period, when the battery provides heating energy to the first heating part, if the heating energy provided to the first heating part is greater than or equal to a preset first energy threshold, then control the battery to stop providing heating energy to the first heating part and start providing heating energy to the second heating part; or, During the time period, when the battery provides heating energy to the second heating part, if the heating energy provided to the second heating part is greater than or equal to a preset second energy threshold, then control the battery to stop providing heating energy to the second heating part.

10. The aerosol generating device according to claim 7, wherein, The circuit is configured to, within the time period, when the first heating part is in a natural cooling state or the battery cell stops providing heating energy to the first heating part or controls the battery cell to provide heating energy to the second heating part, if the real-time temperature of the first heating part is less than or equal to a preset temperature threshold, control the battery cell to provide heating energy to the first heating part and stop providing heating energy to the second heating part.

11. An aerosol generating device, characterized in that, Comprising: a heater for heating an aerosol-generating article to generate an aerosol; the heater includes a first heating part and a second heating part; a battery cell for providing power; a circuit configured to control the battery cell to alternately provide heating energy to the first heating part and the second heating part within at least one heating stage among a plurality of heating stages; wherein, the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

12. A control method for an aerosol generating device, characterized in that, The aerosol-generating device includes a heater for heating an aerosol-generating article and a battery cell for providing power, the heater includes a first heating part and a second heating part; The control method includes: Within at least one heating stage among a plurality of heating stages, based on the real-time temperature of the first heating part detected by the temperature sensor, control the battery cell to provide heating energy to the first heating part and the second heating part; wherein, the heating energy provided to the second heating part is proportional to the heating energy provided to the first heating part.

13. The method according to claim 12, characterized in that, The heating energy provided to the second heating part is in a direct proportional relationship with the heating energy provided to the first heating part.

14. The method according to claim 12, wherein Within the at least one heating stage, the proportionality coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part is constant.

15. The method according to claim 12, wherein When entering from the previous heating stage into the next heating stage, adjust or change the proportionality coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part.

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