Aerosol generating device and control method thereof

Abstract

The invention discloses an aerosol generating device and a control method thereof, and the aerosol generating device comprises a heater which is used for heating an aerosol generating product to generate aerosol; the heater comprises a first heating part and a second heating part; the battery cell is used for providing electric power; the temperature sensor is arranged on the first heating part; the circuit is configured to control the battery cell to provide heating energy for the first heating part and the second heating part based on the real-time temperature, detected by the temperature sensor, of the first heating part in at least one heating stage of a plurality of heating stages; wherein the heating energy provided to the second heating portion is proportional to the heating energy provided to the first heating portion. According to the aerosol generating device and the control method thereof, under the condition that the second heating part does not sense the temperature, it is ensured that the second heating part conducts heating along with the first heating part, and temperature control over the second heating part is achieved.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of electronic atomization, and in particular, to an aerosol generating device and a control method thereof. Background Art

[0002] An aerosol generating device uses a heater to heat and bake an aerosol generating article to generate an aerosol for a user to inhale. Generally, a user often expects the aerosol generating device to generate an aerosol as quickly as possible after startup, reducing the waiting time for the generation of the aerosol. In order to enable the aerosol generating device to quickly generate an aerosol and provide a satisfactory consumption experience, some solutions have made design improvements to the heater or the control method.

[0003] In some solutions known to the inventors of the present application, an aerosol generating device generally uses multiple heaters, aiming to control some of the heaters to reach the temperature for generating an aerosol first, fully preheating and baking some of the aerosol generating articles to generate an aerosol; then controlling another part of the heaters to reach the temperature for generating an aerosol, and then preheating and baking another part of the aerosol generating articles to generate an aerosol. The above method generally requires multiple corresponding temperature sensors to implement, resulting in a high cost. Summary of the Invention

[0004] 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.

[0005] Some embodiments of the present application provide an aerosol generating device, including:

[0006] A heater for heating an aerosol generating article to generate an aerosol; the heater includes a first heating part and a second heating part;

[0007] A battery cell for providing power;

[0008] A temperature sensor disposed on the first heating part;

[0009] A circuit 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 during 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.

[0010] In one example, it further includes a chamber for removably receiving the aerosol generating article;

[0011] The first heating part and the second heating part are arranged in sequence along the axial direction of the chamber.

[0012] In one example, the heating energy provided to the second heating part is in direct proportion to the heating energy provided to the first heating part.

[0013] In one example, 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.

[0014] In one example, 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 a subsequent heating stage from a previous heating stage.

[0015] In one example, the circuit is configured to control the battery cell to provide heating energy to the first heating part and the second heating part simultaneously.

[0016] In one example, the at least one heating stage includes a plurality of time periods;

[0017] The circuit is configured to control the battery cell to alternately provide heating energy to the first heating part and the second heating part within the time period.

[0018] In one example, the time period includes a first partial time period and a second partial time period;

[0019] The circuit is configured to:

[0020] Within the first partial time period, control the battery cell to provide heating energy to the first heating part and stop providing heating energy to the second heating part;

[0021] Within the second partial time period, control the battery cell to provide heating energy to the second heating part and stop providing heating energy to the first heating part.

[0022] In one example, within the time period, when the battery cell 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 cell to stop providing heating energy to the first heating part and start providing heating energy to the second heating part; or,

[0023] Within 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, then control the battery cell to stop providing heating energy to the second heating part.

[0024] In one example, the circuit is configured such that, 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, then it controls the battery cell to provide heating energy to the first heating part and stops providing heating energy to the second heating part.

[0025] Some other embodiments of the present application provide an aerosol generating device, comprising:

[0026] a heater for heating an aerosol generating article to generate an aerosol; the heater includes a first heating part and a second heating part;

[0027] a battery cell for providing electric power;

[0028] 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 of 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.

[0029] Some other embodiments of the present application provide a control method for an aerosol generating device, the aerosol generating device including a heater for heating an aerosol generating article and a battery cell for providing electric power, the heater including a first heating part and a second heating part;

[0030] The control method includes:

[0031] Within at least one heating stage of 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.

[0032] In one example, the heating energy provided to the second heating part is in direct proportion to the heating energy provided to the first heating part.

[0033] In one example, 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.

[0034] In one example, when entering from a previous heating stage to a subsequent 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.

[0035] The aerosol generating device and its control method provided by 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, in the case where the second heating part has no temperature sensing, it is ensured that the second heating part follows the first heating part for heating, realizing temperature control of the second heating part. Description of the Drawings

[0036] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.

[0037] Figure 1 is a schematic diagram of an aerosol generating device provided by an embodiment;

[0038] Figure 2 is Figure 1 a schematic structural diagram of a heater in ;

[0039] Figure 3 is Figure 2 an exploded schematic diagram of each part of the heater before assembly in ;

[0040] Figure 4 is Figure 3 a schematic diagram of the heating element after being unfolded circumferentially in ;

[0041] Figure 5 is a schematic diagram of guiding current on the heating element in one embodiment;

[0042] Figure 6 is a schematic diagram of guiding current on the heating element in another embodiment;

[0043] Figure 7 is a schematic diagram of guiding current on the heating element in another embodiment;

[0044] Figure 8 is a schematic diagram of guiding current on the heating element in another embodiment;

[0045] Figure 9 is a schematic flowchart of the control method in some embodiments of the present application;

[0046] Figure 10 is a schematic diagram of the temperature change of the first heating part and the second heating part during the working process in some embodiments of the present application;

[0047] Figure 11 Schematic diagram of the heating energy supply to the first heating part and the second heating part in some embodiments of the present application;

[0048] Figure 12 Schematic flow chart of the control method in some other embodiments of the present application. Detailed Description of the Invention

[0049] The present application will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made. These all fall within the protection scope of the present application.

[0050] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] 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 all are within the protection scope of the present application. In addition, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from the module division in the device or the flowchart. In addition, the terms "first", "second", "third", etc. used herein do not limit the data and the execution order, but only distinguish the same items or similar items with basically the same function and role.

[0052] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in this specification in the description of the present application are only for the purpose of describing specific embodiments and are not used to limit the present application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0053] In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0054] An 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, so that at least one component of the aerosol generating article 1000 volatilizes or releases to form an aerosol for inhalation, such as Figure 1 as shown.

[0055] In an alternative embodiment, the aerosol-generating article 1000 preferably employs a tobacco-containing material that releases volatile compounds from the matrix upon heating; or it can also be a non-tobacco material that is suitable for electrically heated smoking after heating. The aerosol-generating article 1000 preferably employs a solid matrix, which can include one or more of powder, granules, fragments, strips, bands or flakes of vanilla leaves, dried flowers, herbaceous crops with volatile fragrances, tobacco leaves, homogenized tobacco, expanded tobacco; or the solid matrix can contain additional tobacco or non-tobacco volatile fragrance compounds to be released when the matrix is heated.

[0056] and according to Figure 1 As shown, after the aerosol-generating article 1000 is received in the aerosol-generating device 100, part of it, such as the filter tip, is exposed outside the aerosol-generating device 100, which is beneficial for the user to suck.

[0057] The structure of the aerosol-generating device 100 according to an embodiment of the present application can be referred to Figure 1 As shown, the overall shape of the device is generally constructed in a flat cylindrical shape. The external components of the aerosol-generating device 100 include:

[0058] A housing 10 that basically defines the outer surface of the aerosol-generating device, and its interior is hollow, thereby forming an assembly space for necessary functional components such as electronic devices and heating devices. The housing 10 has a proximal end 110 and a distal end 120 that are opposite in the longitudinal direction; in use, the proximal end 110 is the end close to the user for conveniently operating to receive the aerosol-generating article 1000 and heating and sucking; the distal end 120 is the end away from the user. Among them,

[0059] The proximal end 110 is provided with a receiving port 111 through which the aerosol-generating article 1000 can be received into the housing 10 for heating or removed from the housing 10.

[0060] The distal end 120 is provided with an air inlet hole 121; the air inlet hole 121 is used for external air to enter into the housing 10 during the sucking process.

[0061] In some examples, the outer shell 10 can be formed of a metal or alloy such as stainless steel, aluminum. Other suitable materials include various plastics (e.g., polycarbonate), metal-plating over plastic, ceramics, etc.

[0062] According to Figure 1 As shown, the aerosol-generating device 100 further includes:

[0063] A chamber for accommodating or receiving the aerosol-generating article 1000; in use, the aerosol-generating article 1000 can be removably received into the chamber through the receiving port 111.

[0064] and according to Figure 1 as shown, the aerosol generating device 100 further comprises:

[0065] an air passage 150, located between the chamber and the air inlet 121; and thus in use the air passage 150 provides a passage path for air to enter the chamber / aerosol generating article 1000 from the air inlet 121, as shown by the arrow R11 in Figure 1 as shown.

[0066] According to Figure 1 as shown, the aerosol generating device 100 further comprises:

[0067] 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;

[0068] a circuit 140, arranged or integrated with various components for controlling the heating or operation of the aerosol generating device 100.

[0069] According to Figure 1 as shown, the aerosol generating device 100 further comprises:

[0070] a heater 30, at least partially surrounding and defining the chamber, and 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 it from the outer periphery of the aerosol generating article 1000. And, when the aerosol generating article 1000 is received in the housing 10, it is at least partially received and held within the heater 30.

[0071] Referring to Figure 2 and Figure 3 as shown, the heater 30 is configured to be generally longitudinally tubular in shape and comprises:

[0072] a tubular base body 31, arranged around the chamber; and in practice, the tubular hollow 330 of the base body 31 surrounds and defines the chamber for receiving the aerosol generating article 1000. The material of the base body 31 is a material with good thermal conductivity, such as ceramics, glass, metal or alloy with surface insulation such as anodized aluminum, aluminum alloy, copper alloy, stainless steel, etc.; in use, the base body 31 at least partially defines the chamber for receiving and holding the aerosol generating article 1000. And in some embodiments, the thermal conductivity of the base body 31 is at least 10 W / m·K, preferably at least 100 W / m·K; or in some embodiments, the thermal conductivity of the base body 31 is greater than 200 W / m·K or higher. In some embodiments, the base body 31 comprises a metal suitable for the above high thermal conductivity coefficient, such as aluminum, copper, titanium, or an alloy containing at least one of them, etc.

[0073] In some specific embodiments, the substrate 31 has a wall thickness of approximately 0.05 to 1 mm; and the substrate 31 has an inner diameter of approximately 5.0 to 8.0 mm; and the substrate 31 has a length of approximately 30 to 60 mm. In an embodiment, 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.

[0074] See Figure 2 and Figure 3 as shown, the heater 30 further includes:

[0075] a heating element 32 that at least partially surrounds or encloses the substrate 31; in use, the substrate 31 heats the aerosol-generating article 1000 by receiving or transferring the heat of the heating element 32.

[0076] In some embodiments, the heating element 32 includes a resistive heating element; and the heating element 32 can generate resistive Joule heat and heat up when a direct current flows through the heating element 32. And in some embodiments, the material of the heating element 32 is a metal material, metal alloy, graphite, carbon, conductive ceramic, or a composite material of other ceramic materials and metal materials with appropriate impedance. Among them, appropriate 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, etc. Or in still other embodiments, the heating element 32 can further include an electromagnetic induction heating element or an infrared heating element, etc.

[0077] Or in still other variant embodiments, the heater 30 can only include the heating element 32, and a chamber is formed by surrounding or defining with the heating element 32 for accommodating the aerosol-generating article 1000 and directly transferring heat to the aerosol-generating article 1000 for heating.

[0078] Further see Figure 2 and Figure 3 as shown, the heating element 32 is configured to be in a cylindrical shape surrounding or enclosing the outside of the substrate 31. And the extension dimension of the heating element 32 in the longitudinal direction of the heater 30 is smaller than the extension dimension of the substrate 31; for example, in some specific embodiments, the heating element 32 has a length greater than 20 to 50 mm. For example, specifically, according to Figure 2 and Figure 3As shown, the heater 30 includes an end 310 and an end 320 that are opposite to each other in the longitudinal direction; and in a specific implementation, the end 310 and the end 320 are defined by the two ends of the base body 31 in the longitudinal direction. The first end of the heating element 32 has a spacing d1 from the end 310, and the spacing d1 is approximately 3 to 10 mm; and the second end of the heating element 32 has a spacing d2 from the end 320, and the spacing d2 is approximately 3 to 10 mm.

[0079] After assembly, the heating element 32 does not completely wrap or surround the outer surface of the base body 31, so that the outer surface of the base body 31 has a first exposed area 311 defined by the spacing d1 near the end 310. And the outer surface of the base body 31 has a second exposed area 312 defined by the spacing d2 near the end 320. During assembly, the aerosol generating device 100 is supported by the clamping component or the supporting component or the fixing component, and is combined with the first exposed area defined by the spacing d1 and the second exposed area defined by the spacing d2 to provide support for the heater 30.

[0080] In some embodiments, the heating element 32 is insulated from the base body 31. In some conventional embodiments, the outer surface of the base body 31 can form a surface insulating layer by means of surface anodization, spraying, deposition, etc. The surface insulating layer can include at least one of oxides, glazes, ceramics, organic polymers, etc. Or in some other embodiments, an insulating organic polymer film is provided between the heating element 32 and the base body 31 to provide insulation therebetween; for example, the organic polymer film such as a polyimide film, a polytetrafluoroethylene film, etc.

[0081] See Figures 2 to 4 As shown, the heating element 32 is a resistance heating mesh. In this embodiment, the heating element 32 is a heating element wound by a sheet-like or mesh-like substrate. The wound heating element 32 is non-closed tubular in the circumferential direction, but is cylindrical with a side opening 335 in the longitudinal direction. And the side opening 335 extends from the first end to the second end of the heating element 32 in the longitudinal direction. And in some embodiments, the side opening 335 has a width of approximately 2 to 6 mm.

[0082] Or in some other variant embodiments, the surface of the base body 31 is insulating; the heating element 32 is a resistance heating track or film or coating formed on the base body 31 by means of printing, spraying, deposition, etc. For example, the heating element 32 is a resistance heating track that winds and bends circumferentially; or the heating element 32 is a patterned resistance heating track.

[0083] Or in some other embodiments, the heating element 32 is an infrared emitting coating formed on the substrate 31 by printing, spraying, deposition, etc.; the heating element 32 is an electrically induced infrared emitting coating, which can emit infrared rays into the chamber to heat the aerosol generating product 1000 when current flows through the infrared emitting coating. 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, and these metal oxides can radiate far infrared rays with heating effect when electrically heated to an appropriate temperature.

[0084] according to Figures 2 to 4 As shown, the heating element 32 comprises:

[0085] 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 end 310, and the second heating portion 322 is closer to the distal end 120 and / or the end 320;

[0086] A spacing d3 is defined between the first heating portion 321 and the second heating portion 322; the spacing d3 allows the first heating portion 321 and the second heating portion 322 to be arranged discontinuously. Also, the first heating portion 321 and the second heating portion 322 are separated by the spacing d3 so that they are arranged at intervals in the longitudinal direction. In some embodiments, the spacing d3 has a length of about 3 to 10 mm. After assembly, the third exposed area 313 on the surface of the substrate 31 is defined by the spacing d3.

[0087] Figure 4 FIG. 3 shows a schematic diagram of the heating element 32 after being expanded in the circumferential direction; in this embodiment, the first heating portion 321 and the second heating portion 322 of the heating element 32 after expansion are in a mesh shape. Also, the length of the heating element 32 after expansion is greater than the width; for example, Figure 4 In the embodiment, the length dimension of the heating element 32 after unfolding is about 32.8 mm and the width dimension is about 18.7 mm. Also, the ratio of the length dimension to the width dimension of the heating element 32 is at least 1.5 or more, which is beneficial for reducing the resistance and increasing the power under the same area. Also, in some embodiments, by making the ratio of the length dimension of the heating element 32 to the extension dimension or perimeter along the circumferential direction of the heating element 32 at least 1.5 or more, it is beneficial to guide the current in the circumferential direction of the heating element 32 so that the resistance of the heating element 32 can be further reduced to below 0.6Ω or lower; or in some other embodiments, guiding the current in the circumferential direction of the heating element 32 can further reduce the resistance of the heating element 32 to below 0.3Ω or lower, so that the overall resistance of the heating element 32 is controlled within 0.2 to 0.6Ω.

[0088] and further according to Figure 4 As shown, in the expanded heating element 32, the first heating portion 321 is close to or defines the first end, and the second heating portion 322 is close to or defines the second end. And in some embodiments, the extended length of the first heating portion 321 is substantially equal to that of the second heating portion 322; or, the first heating portion 321 and the second heating portion 322 have substantially the same extended length; for example, in a specific embodiment, the first heating portion 321 and / or the second heating portion 322 has a length of about 15 mm. Or in some other variant embodiments, the extended length of the first heating portion 321 is greater than that of the second heating portion 322; or, the second heating portion 322 is longer than the first heating portion 321.

[0089] In use, by arranging electrodes at intervals in the circumferential direction, current is guided in the circumferential direction of the first heating portion 321 and the second heating portion 322 of the heating element 32. The expanded 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 further includes:

[0090] A first electrode 331, such as an elongated conductive lead, extends from the first end of the heating element 32 to the outside of the second end; and, the first electrode 331 is simultaneously combined and conducts electricity with the first heating portion 321 and the second heating portion 322 at the first side 3210;

[0091] A second electrode 332, such as an elongated conductive lead, is combined and conducts electricity with the first heating portion 321 at the second side 3220;

[0092] A third electrode 333, such as an elongated conductive lead, is combined and conducts electricity with the second heating portion 322 at the second side 3220.

[0093] After being arranged on the substrate 31, the first side 3210 and the second side 3220 define a side opening 335; or, in the circumferential direction, the side opening 335 is located between the first side 3210 and the second side 3220.

[0094] The first electrode 331 and / or the second electrode 332 and / or the third electrode 333 are made of a high-quality conductor metal with relatively low resistivity, such as gold, silver, copper or an alloy containing them. In use, current can be guided in the circumferential direction of the first heating portion 321 and the second heating portion 322 through the first electrode 331 and / or the second electrode 332 and / or the third electrode 333. And, the first electrode 331 and / or the second electrode 332 and / or the third electrode 333 are firmly combined with the heating element 32 by welding or other means and form conduction.

[0095] And disposed on the heating element 32 are holes that are arranged substantially in a matrix or array or in a regular pattern, thereby making the heating element 32 in a mesh shape. In Figure 4 the illustrated embodiment, the holes are rectangular in shape; and, the dimension of the holes along the length direction of the heating element 32 is greater than the dimension along the circumferential or width direction. Alternatively, the holes extend along the length direction of the heating element 32.

[0096] Or in yet other alternative embodiments, the heating element 32 further has more heating portions, such as a third heating portion that is arranged at intervals along the longitudinal direction with respect to the second heating portion 322 in sequence; or it may further include a fourth heating portion, a fifth heating portion, and so on.

[0097] Correspondingly, the heater 30 may further include: more electrodes. And some of these electrodes can serve as common electrodes for multiple heating portions. For example, in some specific embodiments, the heater 30 may include:

[0098] a first heating portion 321, a second heating portion 322, and a third heating portion;

[0099] a first electrode 331, disposed on the first side 3210, extending from the first heating portion 321 to the second heating portion 322, and conducting electricity simultaneously with the first heating portion 321 and the second heating portion 322;

[0100] a second electrode 332, disposed on the second side 3220, only combined with the first heating portion 321 to form conduction;

[0101] a third electrode 333, disposed on the second side 3220, extending from the second heating portion 321 to the third heating portion, and conducting electricity simultaneously with the second heating portion 322 and the third heating portion;

[0102] a fourth electrode, disposed on the first side 3210, only combined with the third heating portion to form conduction.

[0103] Then in the implementation, by adjusting the connection manner of the above electrodes to the circuit, one of the first heating portion 321, the second heating portion 322, and the third heating portion can be selectively heated alone, two can be heated in parallel or in series - parallel or in series, or three can be heated simultaneously in parallel or in series or in a mixed connection.

[0104] Specifically, the holes on the heating element 32 include:

[0105] holes 3211, disposed on the first heating portion 321;

[0106] holes 3221, disposed on the second heating portion 322.

[0107] In some embodiments, the holes 3211 in the first heating portion 321 and / or the holes 3221 in the second heating portion 322 are formed by laser cutting, etching, or the like on a sheet substrate before the heating element 32 is formed by winding. The 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 holes 3221 in the second heating portion 322 are arranged in an array, so that the second heating portion 322 has a grid shape.

[0108] In Figure 2 and Figure 4 In the embodiments of, the holes 3211 and / or the holes 3221 are rectangular holes. Or in some other variant embodiments, the holes 3211 and / or the holes 3221 can also be in the shapes of circles, triangles, polygons, or the like.

[0109] In some embodiments, the area of the holes 3211 in the first heating portion 321 is smaller than the area of the holes 3221 in the second heating portion 322. Or, the length of the holes 3211 in the first heating portion 321 is smaller than the length of the holes 3221 in the second heating portion 322; or, the width of the holes 3211 in the first heating portion 321 is smaller than the width of the holes 3221 in the second heating portion 322. For example, in some implementations, the holes 3211 have a length of approximately 3 - 7 mm and a width of 0.2 - 0.8 mm; and the holes 3221 have a length of approximately 4 - 8 mm and a width of 0.7 - 1.2 mm.

[0110] Or in some other variant embodiments, the holes 3211 and / or the holes 3221 can also be arranged such that the extension dimension in the circumferential direction of the heating element 32 is greater than the extension dimension in the longitudinal direction of the heating element 32; that is, the holes 3211 and / or the holes 3221 have a longer shape in the circumferential direction.

[0111] In Figure 4 In the shown embodiment, along the width direction, the spacing d31 between adjacent holes 3211 in the first heating portion 321 is approximately 0.5 mm; and along the length direction, the spacing d32 between adjacent holes 3211 is approximately 0.5 mm. And in Figure 4 In the shown embodiment, along the width direction, the spacing d33 between adjacent holes 3221 in the second heating portion 322 is approximately 0.2 mm; and along the length direction, the spacing d34 between adjacent holes 3221 is approximately 0.2 mm.

[0112] According to Figure 4 shown, the heating element 32 further includes:

[0113] The connecting portion 324 is disposed on the first side 3210; the connecting portion 324 extends from the first heating portion 321 to the second heating portion 322, so as to connect the first heating portion 321 and the second heating portion 322 conductively. Further, through the connecting portion 324, the spacing d33 is closed at the first side 3210 and open at the second side 3220.

[0114] 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 fabricated. For example, the first heating portion 321, the connecting portion 324 and the second heating portion 322 are integrally obtained by removing the redundant parts of a sheet-like substrate precursor by means of etching, cutting, etc.

[0115] In an embodiment, the first electrode 331 is combined with the connecting portion 324 and conducts electricity with each other; thus, it is beneficial to improve the stability of the electrical connection between the first electrode 331, the first heating portion 321 and the second heating portion 322.

[0116] In Figure 4 In the illustrated embodiment, the width of the first heating portion 321 may 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 at the first side 3210, the first heating portion 321 protrudes slightly relative to the second heating portion 322 at the second side 3220. After welding the second electrode 332 and the third electrode 333, along the longitudinal direction of the heating element 32, the slender second electrode 332 and the third electrode 333 / the second heating portion 322 are staggered, which is beneficial to preventing short circuits between them.

[0117] Or in some other variant 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 slender second electrode 332 and the third electrode 333, by sleeving insulating tubes or spraying surface insulating layers on the second electrode 332 and the third electrode 333 respectively, insulation is provided to prevent them from contacting and forming a short circuit during assembly.

[0118] In 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, so as to selectively conduct current on 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 are selectively connected to the circuit 140 through a switching tube such as a MOS tube that can switch between a conducting state and a disconnecting state, so that the heating section of the heating element 32 for the aerosol generating article 1000 can be changed.

[0119] By selectively connecting the first electrode 331, the second electrode 332, and the third electrode 333 to the circuit 140 in different electrical connection manners, it is possible to selectively heat only one of the first heating part 321 and the second heating part 322 alone, or it is also possible to selectively heat the first heating part 321 and the second heating part 322 simultaneously in series or parallel manners.

[0120] Specifically, for example, one of the first heating part 321 or the second heating part 322 can be individually activated for heating while the other is not activated and not heated, so as to individually heat a partial section of the aerosol generating article 1000; for another example, the first heating part 321 or the second heating part 322 is connected to the circuit 140 in different series or parallel manners, so that the first heating part 321 or the second heating part 322 can simultaneously heat different sections of the aerosol generating article 1000 at different powers, and further form 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 generating efficiencies.

[0121] Specifically, for example Figure 5 The figure shows a schematic diagram of guiding a current i11 on the first heating part 321 by connecting the first electrode 331 and the second electrode 332 to the circuit 140 respectively in an embodiment, and then connecting the first electrode 331 and the second electrode 332 to the positive electrode and the negative electrode of the battery cell 130 respectively to form a loop. According to Figure 5 As shown in Figure 5 In the connection manner of forming a closed loop in this way, only a circumferential working current is formed on the first heating part 321, while there is no current on the second heating part 322.

[0122] According to Figure 5 As shown, when a current is guided on the first heating part 321 through the first electrode 331 and the second electrode 332, a plurality of resistance conductor paths extending circumferentially from the first electrode 331 to the second electrode 332 are formed on the first heating part 321; these plurality of resistance conductor paths are basically circuitously bent and extended; and these plurality of resistance conductor paths are defined by a plurality of holes 3211.

[0123] Specifically, for example Figure 6 The figure shows a schematic diagram of guiding a current i21 on the second heating part 322 by connecting the first electrode 331 and the third electrode 333 to the circuit 140 respectively in another embodiment, and then connecting the first electrode 331 and the third electrode 333 to the positive electrode and the negative electrode of the battery cell 130 respectively to form a loop. According to Figure 6 As shown in Figure 6In the connection mode of forming a closed loop, a circumferential working current is formed only on the second heating part 322, and there is no current on the first heating part 321. According to Figure 6 As shown, when a current is guided on the second heating part 322 through the first electrode 331 and the second electrode 332, several resistive conductor paths extending circumferentially from the first electrode 331 to the third electrode 333 are formed on the second heating part 322; these several resistive conductor paths are basically circuitously bent and extended; and these several resistive conductor paths are defined by several holes 3221.

[0124] In Figure 5 and Figure 6 's implementation mode, the path width of the current i11 is greater than the path width of the current i21. Thus, when guiding the current circumferentially on the first heating part 321 and the second heating part 322 in accordance with Figure 5 or Figure 6 's mode, the resistance value of the first heating part 321 is less than the resistance value of the second heating part 322.

[0125] Figure 7 shows a schematic diagram of guiding currents to the first heating part 321 and the second heating part 322 in parallel simultaneously in another embodiment; in Figure 7 , by connecting the first electrode 331 to the circuit 140 and then connecting it to the positive electrode of the battery cell 130 for conduction, and connecting the second electrode 332 and the third electrode 333 to the circuit 140 and then connecting them to the negative electrode of the battery cell 130 for conduction. Then, a circumferential current i12 on the first heating part 321 and a circumferential current i22 on the second heating part 322 can be formed simultaneously, so as to heat the first heating part 321 and the second heating part 322 simultaneously. And at this time, the voltages across the parallel-connected first heating part 321 and second heating part 322 are the same; then according to the power-voltage-resistance relationship formula P = U2 / R, the resistance of the first heating part 321 is relatively smaller, so that the first heating part 321 has a heating power greater than that of the second heating part 322.

[0126] Figure 8 shows a schematic diagram of guiding currents to the first heating part 321 and the second heating part 322 in series simultaneously in another embodiment. In Figure 8 , the second electrode 332 is connected to the circuit 140 and then connected to the positive electrode of the battery cell 130 for conduction, and the third electrode 333 is connected to the circuit 140 and then connected to the negative electrode of the battery cell 130 for conduction; and in this embodiment, the first electrode 331 is not connected to the circuit, thus forming Figure 8 's series arrangement of the first heating part 321 and the second heating part 322. And in Figure 8Among them, 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 formula P = I 2 ×R, it can be known that when the resistance of the first heating part 321 is less than that of the second heating part 322, the power of the first heating part 321 is less than that of the second heating part 322.

[0127] Then in implementation, the circuit 140 can supply power to the heating element 32 by selectively adopting Figures 5 to 8 any one of the methods, so that only one of the first heating part 321 and the second heating part 322 is heated or both are heated simultaneously.

[0128] Or in some other variant embodiments, the heater 30 further includes:

[0129] An adiabatic element for surrounding or enclosing the heating element 32 on the outside to provide adiabatic on their outside. The adiabatic element is, for example, a wound aerogel felt, or a porous material or a vacuum tube, etc. Or in some other variant embodiments, the adiabatic element of the heater 30 is a tube with an inner adiabatic cavity; there is an adiabatic cavity between the inner surface and the outer surface of the tubular adiabatic element, and the pressure in the adiabatic cavity is less than the external pressure, that is, the adiabatic element is a vacuum adiabatic tube with a vacuum degree. Or in some other variant embodiments, there is an adiabatic cavity between the inner surface and the outer surface of the tubular adiabatic element, and the adiabatic cavity is filled with an adiabatic gas, such as argon; the thermal conductivity of argon is about one-third smaller than that of air under the same pressure and temperature, effectively providing adiabatic.

[0130] Or in some other variant embodiments, the heater 30 further includes:

[0131] A temperature sensor, which is attached to the first heating part 321 to sense the temperature of the first heating part 321.

[0132] Or in some other variant embodiments, the heater 30 further includes:

[0133] A thermoplastic close-fitting member that surrounds the temperature sensor outside the heater 30 for wrapping and fastening the first temperature sensor.

[0134] In some embodiments, the thermoplastic close-fitting member includes at least one of a heat-resistant synthetic resin, polytetrafluoroethylene as Teflon, and silicon; in some other variant embodiments, the thermoplastic close-fitting member includes a heat-shrinkable tube or a high-temperature resistant tape.

[0135] The following combines the exemplary applications and implementations of the aerosol generating device provided in the embodiments of the present application to illustrate the control method provided in some embodiments of the present application. Please refer to Figure 9 ,Figure 9 It is a flow chart of the control method provided by some embodiments of the present application. It can be understood that the execution subject of the control method can be one or more controllers of the circuit.

[0136] like Figure 3 As shown, the method S10 may specifically include the following steps:

[0137] 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.

[0138] Controlling the battery cell to alternately provide heating energy to the first heating part and the second heating part is suitable for the case where the resistance of the first heating part and the second heating part is small. Avoiding the problem that when the first heating part and the second heating part are heated at the same time, the current is too large and the battery cell cannot support it. It is understandable that in other examples, when selecting a suitable battery cell, it is also feasible to heat the first heating part and the second heating part at the same time.

[0139] It is understandable that the duration from the start of heating after the aerosol generating device is started to the end of heating by the aerosol generating device can be divided into different heating stages according to the temperature mutation of the first heating part or the second heating part. Figure 10 For example, curve A in the figure is a curve of the relationship between the temperature and time of the first heating part, and curve B in the figure is a curve of the relationship between the temperature and time of the second heating part; wherein, in the entire duration, it 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 according to 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.

[0140] In the first heating stage T1, the temperature of the first heating part needs to be quickly 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. Usually, the first heating stage T1 takes a short time, for example, 15s to 30s. In some examples, the curve A portion corresponding to the first heating stage T1 also includes a heat preservation stage, that is, after the temperature of the first heating part is increased to the maximum operating temperature, the first heating part is controlled to maintain the maximum operating temperature for a period of time.

[0141] In the first heating stage T1, the temperature of the second heating part slowly rises from the initial temperature (ambient temperature) to the first target temperature, which is less than the maximum operating temperature of the first heating part. For example, it can be around 120 °C. The first target temperature can raise the temperature of the matrix in the corresponding partial aerosol-generating article of the second heating part, but is not sufficient to cause the matrix to generate aerosol. The second heating part can start heating simultaneously with the first heating part, or the second heating part can also start heating after the temperature of the first heating part has risen to the maximum operating temperature.

[0142] At the end of the first heating stage T1, the aerosol generating device outputs a prompt signal for inhalable aerosol to prompt the user to inhale. The prompting method can be vibration, sound, light (such as the LED light being constantly on or flashing), etc.

[0143] In the second heating stage T2, the user can inhale the aerosol generated by heating the first heating part. In the second heating stage T2, the temperature of the first heating part drops to the first preset temperature and is maintained at this first preset temperature. For example, it drops to 250 °C and maintains this temperature. The temperature of the second heating part slowly rises from the first target temperature to the second target temperature, which is still less than the maximum operating temperature of the first heating part or less than the first preset temperature of the first heating part. For example, it can be around 180 °C. The second target temperature further raises the temperature of the matrix in the corresponding partial aerosol-generating article of the second heating part, but is still not sufficient to cause the matrix to generate aerosol.

[0144] In the third heating stage T3, the temperature of the first heating part remains maintained at the first preset temperature. In this heating stage, the matrix in the corresponding partial aerosol-generating article of the first heating part will gradually decrease, and the matrix in the corresponding partial aerosol-generating article of the second heating part is required to supplement it, so as to avoid the problem that the amount of aerosol inhaled by the user or the amount of substances contained therein decreases, resulting in a reduced inhalation experience for the user. Therefore, the temperature of the second heating part needs to rise from the second target temperature to the first preset temperature and generate aerosol.

[0145] In the fourth heating stage T4, the matrix in the corresponding partial aerosol-generating article of the first heating part will further decrease or be about to be exhausted. At this time, the temperature of the first heating part can drop to the second preset temperature and be maintained at this second preset temperature. For example, it drops to 230 °C and maintains this temperature. And the temperature of the second heating part still needs to be maintained at the first preset temperature to further provide inhalable aerosol.

[0146] In the above first heating stage T1 to fourth heating stage T4, within at least one heating stage, the control battery alternately supplies heating energy to the first heating part and the second heating part.

[0147] Taking the second heating stage T2 as an example, as Figure 11 shown, 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 shown in the figure is t. In some embodiments, the range of the time period t can be from 200 ms to 1 s. Taking the time period t as 200 ms and the second heating stage T2 as 60 s as an example for illustrative purposes, the second heating stage T2 can be divided into 300 time periods t.

[0148] Please refer to again Figure 11 , within any one time period t, control the battery cell to alternately supply heating energy to the first heating part and the second heating part. Among them, "alternately" means that at a certain moment, the battery cell only supplies heating energy to one of the first heating part and the second heating part, and will not supply heating energy to the first heating part and the second heating part at the same time. When the supply of heating energy to the first heating part ends, the supply of heating energy to the second heating part starts, and when the supply of heating energy to the second heating part ends, the supply of heating energy to the first heating part starts.

[0149] Within any one time period t, control the battery cell to alternately supply heating energy to the first heating part and the second heating part, so that the first heating part and the second heating part are alternately heated, and the number of alternations is at least once. That is to say, in some embodiments, within the time period t, the first heating part and the second heating part can be alternately heated multiple times.

[0150] By dividing the second heating stage T2 into multiple time periods t, since the set duration of the time period t is relatively short, such as 200 ms, such as less than 1 s, the time (also called the natural cooling stage) when the first heating part or the second heating part is in the natural cooling state without being supplied with heating energy within the time period t is also very short. Therefore, the temperature drop amplitude of the first heating part or the second heating part in the natural cooling state is also very limited; moreover, in the next time period t, the temperature drop of the first heating part or the second heating part due to natural cooling will be quickly compensated for by supplying heating energy, so that the temperature can be maintained and / or increased. Thus, the embodiments of the present application will not affect the aerosol generation speed. Compared with the case of heating the first heating part and the second heating part simultaneously throughout the whole process, in the embodiments of the present application, heating energy is alternately supplied to the first heating part and the second heating part within each time period t, which can effectively save power consumption and improve the endurance ability.

[0151] In some embodiments, each time period t includes a first partial time period and a second partial time period;

[0152] The foregoing step S11 specifically includes:

[0153] S111: During the first part of the time period, control the battery cell to provide heating energy to the first heating part and stop providing heating energy to the second heating part.

[0154] S112: During the second part of the time period, control the battery cell to provide heating energy to the second heating part and stop providing heating energy to the first heating part.

[0155] When the first heating stage T1 ends and enters the second heating stage T2, every certain time t, the next time period t is entered. During the current time period t, during the first part of the time period, control the battery cell to provide heating energy to the first heating part and at the same time stop providing heating energy to the second heating part. After the cumulative time within the current time period t reaches the duration of the first part of the time period, the second part of the time period is entered. At this time, control the battery cell to provide heating energy to the second heating part and at the same time stop providing heating energy to the first heating part. After the cumulative time of the current time period t reaches t, the next time period t is entered.

[0156] In this embodiment, by timing and according to the set duration, control the battery cell 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 accurately heat alternately, thereby uniformly baking the aerosol-generating article, providing an aerosol with a good taste, effectively saving power consumption, and improving the endurance.

[0157] In some embodiments, the foregoing step S11 specifically includes:

[0158] S113: During 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.

[0159] Among them, the natural cooling state refers to the state of not being provided with heating energy. For example, when the battery cell provides heating energy to the second heating part and stops providing heating energy to the first heating part, the first heating part is in the natural cooling state. When the first heating part and / or the second heating part is in the natural cooling state, its temperature will decrease due to heat dissipation to the outside, but the degree of temperature drop will vary according to the heat preservation performance of different heating components.

[0160] When the first heating part is in the 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.

[0161] Wherein, 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.

[0162] Specifically, within a certain time period t, the first heating part is in the natural cooling state, that is, the battery cell stops providing heating energy to the first heating part. Since the battery cell alternately provides heating energy to the first heating part and the second heating part, when the first heating part is in the natural cooling state, the battery cell provides heating energy to the second heating part. During this period, if it is detected that the real-time temperature of the first heating part is lower than the temperature threshold, indicating that too much heat is lost, it is necessary to control the battery cell to immediately provide heating energy to the first heating part and stop providing heating energy to the second heating part to ensure the temperature of the first heating part.

[0163] 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 prevent the first heating part from being over-cooled due to heat dissipation when in the natural cooling state, which affects the heating operation of the aerosol generating device, uniformly bake the aerosol generating article, provide an aerosol with good taste, effectively save power consumption, and improve the battery life.

[0164] In some embodiments, the foregoing step S11 specifically includes:

[0165] S114: Within each time period t, when the battery cell provides heating energy to the first heating part, if the heating energy provided to the first heating part is greater than or equal to the preset first energy threshold, the battery cell is controlled to stop providing heating energy to the first heating part and start providing heating energy to the second heating part; or,

[0166] Within 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 the preset second energy threshold, the battery cell is controlled to stop providing heating energy to the second heating part.

[0167] In this embodiment, within each time period t, the energy supply from the battery cell to the first heating part is preset. Specifically, a first energy threshold is set, which is the rated amount of heating energy provided by the battery cell to the first heating part within the time period t. It can be understood that those skilled in the art can set the first energy threshold according to the heat preservation performance of the heating component or other factors.

[0168] The first energy threshold can be the minimum heating energy required for the first heating part to increase its temperature within the time period t. Taking the current time period t as an example, when entering the current time period t, the battery cell is controlled to first supply heating energy to the first heating part, and the supplied energy to the first heating part within the current time period t is measured starting from zero. If the supplied energy is greater than or equal to the first energy threshold, it means that the supplied energy has reached the rated amount, then the battery cell is controlled to stop supplying heating energy to the first heating part and start supplying heating energy to the second heating part to achieve alternation.

[0169] In this embodiment, by accumulating the supplied energy to the first heating part within each time period t and supplying it according to the rated amount of heating energy set, the first heating part and the second heating part can accurately alternate heating to uniformly bake the aerosol-generating article, provide an aerosol with good taste, effectively save power consumption, and improve the endurance.

[0170] Similarly, the energy supply from the battery cell to the second heating part is also preset. Specifically, within each time period t, the heating energy supplied to the second heating part is proportional to the heating energy supplied to the first heating part and is in a direct proportional relationship (assuming the proportionality coefficient is k). In this way, if the energy supplied to the second heating part is greater than or equal to the second energy threshold, it means that the supplied energy has reached the rated amount, then the battery cell is controlled to stop supplying heating energy to the second heating part and start supplying heating energy to the first heating part to achieve alternation.

[0171] The proportionality coefficient k remains unchanged in each heating stage, so that the temperature of the second heating part gradually rises in a wave-like manner, avoiding sudden changes in the temperature of the second heating part during this heating stage, and ensuring that the heating temperature of the second heating part is within a safe range.

[0172] When entering the next heating stage from the previous heating stage, the value of the proportionality coefficient k can be adjusted or changed, so as to increase the temperature of the second heating part and ensure that the second heating part follows the first heating part for heating.

[0173] Taking the second heating stage T2 and the third heating stage T3 as examples, in the second heating stage T2, the proportionality coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part is k1; in the third heating stage T3, the proportionality coefficient of the heating energy provided to the second heating part to the heating energy provided to the first heating part is k2; wherein, the proportionality coefficient k2 is greater than the proportionality coefficient k1. In this way, by increasing the proportionality coefficient, in the third heating stage T3, the temperature of the second heating part can be increased to the first preset temperature to generate aerosol.

[0174] Figure 12 It is a schematic flowchart of the control method in some other embodiments of the present application.

[0175] As Figure 12 shown, the method S20 may specifically include the following steps:

[0176] 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.

[0177] Different from the foregoing example, in this example, controlling the battery cell to provide heating energy to the first heating part and the second heating part simultaneously may be to provide heating energy alternately, or to provide heating energy non-alternately (that is, controlling the first heating part and the second heating part to start heating simultaneously, or controlling the first heating part and the second heating part to stop heating simultaneously). The description of alternately providing heating energy and the heating energy provided to the second heating part being proportional to the heating energy provided to the first heating part may refer to the description of the foregoing example.

[0178] In this example, the heating curve as Figure 10 shown can also be achieved. In other examples, Figure 9 or Figure 12 the example is also applicable to the case where the first heating part and the second heating part start heating simultaneously.

[0179] It should be noted that in Figure 9 or Figure 12 the example, the temperature sensor is disposed on the first heating part, and the second heating part follows the first heating part for temperature control. In other examples, it is also feasible that the temperature sensor is disposed on the second heating part, and the first heating part follows the second heating part for temperature control.

[0180] It should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0181] Through the description of the above embodiments, those of ordinary skill in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Those of ordinary skill in the art can understand that all or part of the processes in the above-described method embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-described method embodiments. 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.

[0182] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order. There are many other changes in different aspects of the present application as described above. For the sake of brevity, they are not provided in detail. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate 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 cell for providing electric power; A temperature sensor disposed on the first heating part; A circuit 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 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, characterized in that, Further comprising 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 directly proportional 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, wherein, 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, characterized in that, The circuit is configured to control the battery cell to provide heating energy to the first heating part and the second heating part simultaneously.

7. The aerosol generating device according to claim 6, wherein The at least one heating stage includes a plurality of time periods; The circuit is configured to control the battery cell 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 cell 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 cell 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 cell 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 cell 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 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, then control the battery cell 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 of 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 of 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, wherein The heating energy provided to the second heating part is in direct proportion to 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 a previous heating stage into a subsequent 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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