Aerosol generating device, heater for aerosol generating device and control method

Abstract

The present invention provides an aerosol generating device (100), a heater (30) for the aerosol generating device (100), and a control method thereof. The aerosol generating device (100) is configured to generate an aerosol by heating an aerosol-generating product (1000). The aerosol generating device (100) comprises: a cavity at least partially receiving the aerosol-generating product (1000); a heater (30) surrounding the cavity and used to heat the aerosol-generating product (1000), the heater (30) including at least a first heating region, a second heating region, and a third heating region sequentially arranged around the circumferential direction of the cavity; a battery cell (130) for supplying power to the heater (30); and a circuit configured to control the battery cell (130) to supply power to the heater (30) so that the first heating region, the second heating region, and the third heating region are heated simultaneously, and selectively one of them can be heated faster or with greater power than the other two. The aerosol generating device (100) is advantageous in that it generates aerosols in different regions differentiatedly when the aerosol-generating product (1000) is heated simultaneously in the circumferential direction.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority from a prior application filed with the China Patent Office on August 12, 2022, bearing application number 202210968889.7 and entitled "Aerosol Generating Apparatus, Heater and Control Method for Aerosol Generating Apparatus," the entire contents of which are incorporated herein by reference.

[0002] FIELD OF THE INVENTION The present application relates to the field of heated non-combustion aerosol generation, and more particularly to aerosol generating devices, heaters for aerosol generating devices, and control methods. [Background technology]

[0003] Tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco to produce tobacco smoke during use. As an alternative to these combustible tobacco products, efforts have been made to produce products that release compounds without combustion.

[0004] Examples of such products include heating devices that release compounds by heating, rather than burning, a material. For example, the material may be tobacco or other non-tobacco products, which may or may not contain nicotine. Conventional heating devices include a tubular heater that surrounds the tobacco or other non-tobacco product and has multiple circumferentially spaced heating zones that can be independently activated to heat different circumferential zones of the tobacco or other non-tobacco product. Summary of the Invention

[0005] One embodiment of the present application is an aerosol generating device configured to heat an aerosol-generating product to generate an aerosol, comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and used to heat the aerosol-generating product, the heater including at least a first heating zone, a second heating zone, and a third heating zone sequentially arranged to surround the cavity in a circumferential direction; a battery cell for supplying power to the heater; and a circuit configured to control the battery cell to supply power to the heater so that the first heating area, the second heating area, and the third heating area are heated simultaneously and selectively one of the first heating area, the second heating area, and the third heating area can be heated faster or with greater power than the other two.

[0006] In some implementations, the heater is configured such that it is unable to heat only one or two of the first heating zone, the second heating zone, and the third heating zone.

[0007] In some implementations, the first heating zone, the second heating zone, and the third heating zone are configured such that they can only be heated simultaneously.

[0008] In some implementations, the heater does not have more heating zones than the first heating zone, the second heating zone, and the third heating zone; and / or the heater includes only three heating zones.

[0009] In some implementations, the radian dimension in the circumferential direction of one of the first, second, and third heating zones that heats faster or with higher power is less than π, and the sum of the radian dimensions in the circumferential direction of the other two heaters that heat slower or with lower power is greater than π.

[0010] In some implementations, the heater includes at least a first heating element, a second heating element, and a third heating element arranged sequentially around a circumference of the cavity; At least a portion of the first heating element defines the first heating zone; At least a portion of the second heating element defines the second heating zone; At least a portion of the third heating element defines the third heating zone.

[0011] In some implementations, the circuitry is configured to heat one of the first, second, and third heating zones faster or with more power than the other two by selectively varying the electrical connections of the first, second, and third heating elements, the electrical connections including series and / or parallel connections.

[0012] In some implementations, the circuit is configured to selectively connect two of the first, second, and third heating elements in series and then connect the other one in parallel, thereby allowing one of the first, second, and third heating zones to heat faster or with more power than the other two.

[0013] In some implementations, the radians in the circumferential direction of two of the first, second, and third heating elements connected in series are greater than π, and the radians in the circumferential direction of the other heater are less than π.

[0014] In some implementations, the heater further includes a first electrode element, a second electrode element, and a third electrode element sequentially arranged around a circumference of the cavity; at least a portion of the first heating element is electrically connected between the first and second electrode elements such that, in use, a current can be conducted to the first heating element by the first and second electrode elements; at least a portion of the second heating element is electrically connected between the second and third electrode elements such that, in use, a current can be conducted to the second heating element by the second and third electrode elements; At least a portion of the third heating element is electrically connected between the third electrode element and the first electrode element such that, during use, a current can be conducted to the third heating element by the third electrode element and the first electrode element.

[0015] In some implementations, the circuitry is configured to selectively connect only two of the first, second, and third electrode elements to supply power to the heater such that one of the first, second, and third heating zones heats faster or with more power than the other two.

[0016] In some implementations, any two of the first electrode element, the second electrode element, and the third electrode element are arranged asymmetrically in a radial direction of the heater; And / or, any two of the first electrode element, the second electrode element, and the third electrode element have an asymmetry rotated by 180° around the central axis of the heater.

[0017] In some implementations, the first heating element is at least one of an infrared heating element or a resistive heating element; and / or the second heating element is at least one of an infrared heating element or a resistive heating element; and / or the third heating element is at least one of an infrared heating element or a resistive heating element.

[0018] In some implementations, the heater comprises: a substrate at least partially surrounding the cavity; an infrared emitting layer formed on or bonded to the substrate; The infrared radiation layer includes a first electrode element, a second electrode element, and a third electrode element arranged to surround the circumferential direction of the base, the first heating region being defined by a portion of the infrared radiation layer located between the first electrode element and the second electrode element, the second heating region being defined by a portion of the infrared radiation layer located between the second electrode element and the third electrode element, and the third heating region being defined by a portion of the infrared radiation layer located between the third electrode element and the first electrode element.

[0019] In some implementations, the circuitry is configured to control the battery cells to supply power to the heater such that the first heating zone heats faster or with more power than the second heating zone and / or the third heating zone during a first time period, the second heating zone heats faster or with more power than the first heating zone and / or the third heating zone during a second time period, and the third heating zone heats faster or with more power than the first heating zone and / or the second heating zone during a third time period.

[0020] In some implementations, during the first time period, the power supplied by the circuit to the first heating zone is essentially four times the power supplied to the second heating zone and / or the third heating zone; and / or during the second time period, the power supplied by the circuit to the second heating zone is essentially four times the power supplied to the first heating zone and / or the third heating zone; and / or during the third period, the power supplied by the circuit to the third heating zone is essentially four times the power supplied to the first heating zone and / or the second heating zone.

[0021] In some implementations, the circuitry is configured to control the battery cells to supply power to the heater such that during a first time period, the first heating area is heated at a first power and the second and third heating areas are heated at essentially the same second power, during a second time period, the second heating area is heated at a third power and the first and third heating areas are heated at essentially the same fourth power, and during a third time period, the third heating area is heated at a fifth power and the first and second heating areas are heated at essentially the same sixth power.

[0022] In some implementations, the circuitry is further configured to control the battery cell to supply power to the heater such that during a first time period, the first heating area is heated to a first target temperature and the second and third heating areas are below the first target temperature, during a second time period, the second heating area is heated to a second target temperature and the third heating area is below the second target temperature, and during a third time period, the third heating area is heated to a third target temperature and the first and second heating areas are at or above the third target temperature.

[0023] In some implementations, the first period of time is 100 to 150 seconds; and / or the second period is 20 to 30 seconds; and / or the length of the third period is about 60 to 120 seconds; And / or the length of the fourth period is about 60 to 150 seconds.

[0024] Another embodiment of the present application provides an aerosol generating device configured to generate an aerosol by heating an aerosol-generating product including a first region, a second region, and a third region arranged sequentially in a circumferential direction, the aerosol generating device comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product; The present invention further provides an aerosol generating device comprising: a circuit configured to control the battery cell to supply power to the heater so that the first, second, and third regions of the aerosol-generating product are heated simultaneously, and selectively one of the first, second, and third regions can be heated faster or with greater power than the other two.

[0025] In some implementations, the circuitry is configured to control the battery cells to supply power to the heater such that the first region is heated faster or with more power than the second region and / or the third region during a first time period, the second region is heated faster or with more power than the first region and / or the third region during a second time period, and the third region is heated faster or with more power than the first region and / or the second region during a third time period.

[0026] In some implementations, the circuitry is configured to control the battery cells to supply power to the heater such that during a first time period, the first region is heated at a first power and the second and third regions are heated at essentially the same second power, during a second time period, the second region is heated at a third power and the first and third regions are heated at essentially the same fourth power, and during a third time period, the third region is heated at a fifth power and the first and second regions are heated at essentially the same sixth power.

[0027] In some implementations, the circuitry is further configured to control the battery cells to supply power to the heater such that during a first time period, the first region is heated to a first target temperature and the second and third regions are below the first target temperature, during a second time period, the second region is heated to a second target temperature and the third region is below the second target temperature, and during a third time period, the third region is heated to a third target temperature and the first and second regions are at or above the third target temperature.

[0028] Another embodiment of the present application provides an aerosol generating device configured to generate an aerosol by heating an aerosol-generating product including a first region, a second region, and a third region arranged sequentially in a circumferential direction, the aerosol generating device comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product; and a circuit configured to control the battery cell to supply power to the heater so that the first, second, and third regions of the aerosol-generating product are heated simultaneously, and so that during a first time period the first region is heated to a first target temperature and the second and third regions are lower than the first target temperature, during a second time period the second region is heated to a second target temperature and the third region is lower than the second target temperature, and during a third time period the third region is heated to a third target temperature and the first and second regions are equal to or higher than the third target temperature.

[0029] Another embodiment of the present application is an aerosol generating device configured to heat an aerosol-generating product to generate an aerosol, the device comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product, the heater comprising at least: a first heating element, a second heating element, and a third heating element arranged in sequence so as to surround the circumferential direction of the cavity; a first electrode element, a second electrode element, and a third electrode element sequentially arranged to surround the circumferential direction of the cavity, wherein at least a portion of the first heating element is electrically connected between the first electrode element and the second electrode element so that a current can be conducted to the first heating element by the first electrode element and the second electrode element during use; at least a portion of the second heating element is electrically connected between the second and third electrode elements such that, in use, a current can be conducted to the second heating element by the second and third electrode elements; The aerosol generating device further provides that at least a portion of the third heating element is electrically connected between the third electrode element and the first electrode element so that, during use, an electric current can be conducted to the third heating element by the third electrode element and the first electrode element.

[0030] In some implementations, The heater further includes a circuit configured to selectively connect only two of the first, second, and third electrode elements to supply power to the heater such that one of the first, second, and third heating elements heats faster or with more power than the other two.

[0031] Another embodiment of the present application is an aerosol generating device configured to heat an aerosol-generating product to generate an aerosol, the device comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product, the heater comprising at least: a first heating element and a second heating element arranged in sequence so as to surround the circumferential direction of the cavity; and a first electrode element and a second electrode element arranged in sequence so as to surround the circumferential direction of the cavity, the first electrode element and the second electrode element being used to introduce current to the first heating element and the second heating element in the circumferential direction of the heater; the first heating element is on a first side of a virtual connecting line between the first electrode element and the second electrode element, and the radian in the circumferential direction of the heater is less than π; The present invention further provides an aerosol generating device, wherein the first heating element is on a second side of an imaginary connecting line between the first electrode element and the second electrode element, and the radian in the circumferential direction of the heater is greater than π.

[0032] In some implementations, the first and second electrode elements are asymmetrically positioned in a radial direction of the heater; And / or, the first electrode element and the second electrode element have an asymmetry that rotates 180° around the central axis of the heater.

[0033] Another embodiment of the present application is a tubular structure having at least: a first heating element, a second heating element, and a third heating element arranged in sequence in a circumferential direction of the heater; a first electrode element, a second electrode element, and a third electrode element arranged sequentially in a circumferential direction of the heater, wherein at least a portion of the first heating element is electrically connected between the first electrode element and the second electrode element so that a current can be conducted to the first heating element by the first electrode element and the second electrode element during use; at least a portion of the second heating element is electrically connected between the second and third electrode elements such that, in use, a current can be conducted to the second heating element by the second and third electrode elements; The present invention further provides a heater for an aerosol generating device, wherein at least a portion of the third heating element is electrically connected between the third electrode element and the first electrode element so that, during use, an electric current can be conducted to the third heating element by the third electrode element and the first electrode element.

[0034] Another embodiment of the present application is a tubular structure having at least: a first heating element and a second heating element arranged in sequence so as to surround the circumferential direction of the cavity; and a first electrode element and a second electrode element arranged in sequence so as to surround the circumferential direction of the cavity, the first electrode element and the second electrode element being used to introduce current to the first heating element and the second heating element in the circumferential direction of the heater; the first heating element is on a first side of a virtual connecting line between the first electrode element and the second electrode element, and the radian in the circumferential direction of the heater is less than π; The present invention further provides a heater for an aerosol generating device, wherein the first heating element is on a second side of an imaginary connecting line between the first electrode element and the second electrode element, and the radians in the circumferential direction of the heater are greater than π.

[0035] Another embodiment of the present application is an aerosol-generating product configured to heat an aerosol to generate the aerosol, a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and used to heat an aerosol-generating product, the heater including at least a first heating zone, a second heating zone and a third heating zone arranged sequentially in a circumferential direction to heat different parts of the aerosol-generating product, the method comprising: supplying power to the heater to simultaneously heat the first heating area, the second heating area, and the third heating area; adjusting electrode elements of at least some of the first, second, and third heating zones so that one of the first, second, and third heating zones heats faster or with more power than the other two heating zones. A method of controlling an aerosol generating device is also provided.

[0036] In some other embodiments, the method further comprises: The method includes controlling the battery cell to supply power to the heater so that the first heating area, the second heating area, and the third heating area are heated simultaneously, and selectively one of the first heating area, the second heating area, and the third heating area can be heated faster or with greater power than the other two.

[0037] Another embodiment of the present application is an aerosol-generating product configured to generate an aerosol by heating the aerosol-generating product, the aerosol-generating product including a first region, a second region, and a third region sequentially arranged in a circumferential direction, a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and used to heat the aerosol-generating product, comprising: applying power to the heater to simultaneously heat the first region, the second region, and the third region of the aerosol-generating product; heating the first region to a first target temperature higher than the current temperatures of the second and third regions during a first time period; heating the second region to a second target temperature greater than the current temperature of the third region during a second time period; and heating the third region to a third target temperature during a third time period, the third target temperature approaching the current temperatures of the first and second regions. A method of controlling an aerosol generating device is also provided.

[0038] In some other embodiments, the method further comprises: The method includes controlling the battery cell to supply power to the heater so that the first, second, and third regions of the aerosol-generating product are heated simultaneously, and during a first period, the first region is heated to a first target temperature and the second and third regions are at a temperature lower than the first target temperature, during a second period, the second region is heated to a second target temperature and the third region is at a temperature lower than the second target temperature, and during a third period, the third region is heated to a third target temperature and the first and second regions are at or above the third target temperature.

[0039] The above aerosol generating device is advantageous in that when the aerosol-generating products are heated simultaneously in the circumferential direction, different regions can be differentiated to generate aerosols. [Brief explanation of the drawings]

[0040] One or more embodiments are illustratively described by corresponding figures in the accompanying drawings, but these illustrative descriptions are not intended to be limiting of the embodiments, and in the drawings, elements with the same reference numerals designate similar elements and, unless otherwise specified, the figures in the drawings are not to scale.

[0041] [Figure 1] 1 is a schematic diagram of an aerosol generating device provided by one embodiment. [Figure 2] 2 is a schematic cross-sectional view of the heater of FIG. 1 at one viewing angle. [Figure 3] FIG. 2 is a structural schematic diagram of an embodiment of the heater of FIG. 1. [Figure 4] 4 is an exploded schematic view of the heater of FIG. 3 at one viewing angle. [Figure 5] 2 is a structural schematic diagram of another embodiment of the heater of FIG. 1. FIG. [Figure 6] FIG. 10 is a schematic diagram illustrating a case where a current is introduced into a heater in an embodiment. [Figure 7] FIG. 10 is a schematic diagram illustrating a case where a current is introduced into a heater in another embodiment. [Figure 8] FIG. 10 is a schematic diagram illustrating a case where a current is introduced into a heater in another embodiment. [Figure 9] 1 is a schematic diagram of heating curves for different regions of an aerosol-generating product in one embodiment. [Figure 10] FIG. 10 is a structural schematic diagram of a heater according to another embodiment. [Figure 11] FIG. 1 is a schematic diagram illustrating a method for controlling an aerosol generating device according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0042] In order to facilitate understanding of the present application, the present application will now be described in more detail with reference to the drawings and specific embodiments.

[0043] One embodiment of the present application provides an aerosol generating device 100, as shown in FIG. 1, that heats an aerosol-generating product 1000, such as a cigarette, rather than burning it, thereby volatilizing or releasing at least one component of the aerosol-generating product 1000 to form an aerosol for inhalation.

[0044] In further alternative implementations, the aerosol-generating product 1000 preferably employs a tobacco-containing material that releases volatile compounds from the substrate upon heating, or may be a non-tobacco material that is suitable for electrical heating to produce smoke after heating. The aerosol-generating product 1000 preferably employs a solid substrate that may comprise one or more of powders, granules, strips, strips, or sheets of one or more of vanilla leaf, tobacco leaf, homogenized tobacco, and expanded tobacco, or the solid substrate may contain additional tobacco or non-tobacco volatile flavor compounds that are released upon heating of the substrate.

[0045] As shown in FIG. 1, after the aerosol-generating product 1000 is received in the aerosol-generating device 100, a part of the aerosol-generating product 1000, such as a filter, is exposed to the outside of the aerosol-generating device 100, making it convenient for a user to smoke.

[0046] As shown in FIG. 1, the structure of the aerosol generating device according to one embodiment of the present application is such that the entire outer shape of the device is substantially flat and cylindrical. The external members of the aerosol generating device 100 are: The housing 10 has an internal hollow structure and defines an assembly space available for an electronic device and necessary functional components such as a heater, the housing 10 having longitudinally opposed proximal and distal ends 110 and 120, wherein: The proximal end 110 has an opening 111 through which the aerosol-generating product 1000 can be received into the housing 10 for heating or removed from the housing 10; The distal end 120 is provided with an intake hole 121 for allowing outside air to enter the housing 10 during smoking.

[0047] Further, as shown in FIG. 1, the aerosol generating device 100 includes: It further comprises a cavity for containing or receiving the aerosol-generating product 1000, and during use the aerosol-generating product 1000 can be removably received in the cavity via the opening 111. In some embodiments, the length of the aerosol-generating product 1000 that is surrounded and heated by the heater 30 is greater than 30 mm.

[0048] As shown in FIG. 1, the aerosol generating device 100 includes: It further comprises an air passageway 150 located between the cavity and the air inlet 121, and as further shown by arrow R11 in FIG. 1, during use the air passageway 150 provides a passageway from the air inlet 121 into the cavity / aerosol-generating product 1000.

[0049] Further, as shown in FIG. 1, the aerosol generating device 100 includes: a power supply battery cell 130, preferably a rechargeable DC battery cell 130, which can be connected to an external power source for charging; It further comprises a circuit board 140, such as a PCB board, on which a circuit, which may be an integrated circuit, or an MCU controller is disposed.

[0050] Further, as shown in FIG. 1, the aerosol generating device 100 includes: The housing 10 further includes a heater 30 at least partially surrounding and defining the cavity, and when the aerosol-generating product 1000 is received within the housing 10, at least a portion of the heater 30 surrounds or encircles the aerosol-generating product 1000, heating it from the periphery of the aerosol-generating product 1000. Furthermore, when the aerosol-generating product 1000 is received within the housing 10, at least a portion of the aerosol-generating product 1000 is contained and held within the heater 30.

[0051] Further, as shown in FIG. 2, the heater 30 is configured in a basically elongated tubular shape, and a tubular substrate 31 made of an infrared-transparent material, such as quartz, glass, ceramics, etc., at least a portion of which is defined to contain and hold, in use, an aerosol-generating product 1000; It further includes at least one or more heating elements formed on or coupled to the base 31, such as, for example, an infrared heating element or a resistive heating element that heats the aerosol-generating product 1000 by emitting infrared rays to the aerosol-generating product 1000.

[0052] In some specific implementations, the substrate 31 has a wall thickness of about 0.05 to 1 mm, an inner diameter of about 5.0 to 8.0 mm, and a length of about 30 to 60 mm.

[0053] In some embodiments, the infrared heating element is at least one or more infrared emitting layers bonded or formed on the substrate 31, for example, surrounding or bonded to the outer surface of the substrate 31. Alternatively, in some other embodiments, at least one or more infrared emitting layers are formed on the inner surface of the substrate 31.

[0054] In some embodiments, the at least one or more infrared-emitting layers are coatings or thin layers formed on the substrate 31 by deposition, spraying, or the like, or in other embodiments, the at least one or more infrared-emitting layers are films that cover or are bonded to the substrate 31.

[0055] In an embodiment, the at least one or more infrared emitting layers are electric infrared emitting layers, and a direct current voltage is directly supplied to the at least one or more infrared emitting layers, thereby causing the at least one or more infrared emitting layers to emit infrared light under voltage driving.

[0056] In some implementations, at least one or more infrared-emitting layers may be a coating made of a ceramic-based material such as zirconium, or an Fe—Mn—Cu-based, tungsten-based, or transition metal and their oxide materials.

[0057] In some implementations, the at least one or more infrared emitting layers are made of an oxide of at least one metal element, such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, or Zn, which can emit far-infrared rays with a heating effect when heated to an appropriate temperature. The at least one or more infrared emitting layers may preferably have a thickness of 30 μm to 50 μm and can be formed on the surface of the tubular substrate 31 by spraying the oxide of the above metal element onto the outer surface of the tubular substrate 31 using atmospheric plasma spraying and then curing it.

[0058] Alternatively, in some other modified embodiments, the two or more infrared emitting layers are arranged sequentially in the circumferential direction of the base 31 and / or heater 30. The extension angle or radian of any one of the two or more infrared emitting layers in the circumferential direction is different from that of the other infrared emitting layers. Alternatively, in some other modified embodiments, the two or more infrared emitting layers each have an extension angle or radian in the circumferential direction that is different from that of the other infrared emitting layers. The two or more infrared emitting layers radiate infrared rays radially inward toward the aerosol-generating product 1000.

[0059] Alternatively, in some other embodiments, the extension angles or radians of the two or more infrared emitting layers in the circumferential direction gradually change in the circumferential direction of the heater 30. For example, in some specific embodiments, the extension angles or radians of the two or more infrared emitting layers in the circumferential direction gradually or sequentially increase or decrease.

[0060] In some embodiments, the multiple infrared emitting layers formed on the base 31 are arranged independently of each other, spaced apart from each other, and each connected independently to the circuit board 140 via an electrode, a lead wire, or the like. Alternatively, in some embodiments, the multiple infrared emitting layers formed on the base 31 are defined by dividing one complete infrared emitting layer into portions located in different regions. For example, as shown in FIG. 2 , the infrared emitting layer 321, the infrared emitting layer 322, and the infrared emitting layer 323, which are sequentially arranged in the circumferential direction on the base 31, are formed by dividing one complete annular infrared emitting layer 32 into different regions.

[0061] Alternatively, in some other embodiments, heater 30 may include only three infrared-emitting layers, i.e., infrared-emitting layer 321, infrared-emitting layer 322, and infrared-emitting layer 323. Alternatively, in some other embodiments, heater 30 may further include more, such as four, five, six, or more, circumferentially sequentially arranged infrared-emitting layers arranged circumferentially around substrate 31. Furthermore, during use, they may heat different regions of aerosol-generating product 1000 that are surrounded by them, such as circumferentially sequentially arranged regions 1100, 1200, and 1300 of aerosol-generating product 1000 shown in FIG.

[0062] In addition, the surface of the substrate 31 is an exposed area 313 located between the first end 311 and the infrared emitting layer 32; An exposed area 314 located between the infrared emitting layer 32 and the second end 312 is further defined.

[0063] Also, in practice, exposed region 313 and / or exposed region 314 have an extension length of about 1 to 4 mm.

[0064] In some embodiments, the infrared emitting layer 321, the infrared emitting layer 322, and the infrared emitting layer 323 are provided with a temperature measurement marking area to indicate the attachment of a temperature sensor. For example, in Figures 3 to 5, the infrared emitting layer 32 is provided with a temperature measurement marking area 36, such as a distinctive color sprayed on, a watermark formed by the infrared emitting layer 32, or a distinctive graphic or pattern. During fabrication, a temperature sensor is bonded to the temperature measurement marking area 36, such as by gluing or welding, to accurately detect the temperature of the infrared emitting layer 32. Similarly, the temperature measurement marking area 36 can be located on any one or more of the infrared emitting layer 321, the infrared emitting layer 322, and the infrared emitting layer 323.

[0065] In some embodiments, infrared emitting layer 321, infrared emitting layer 322 and infrared emitting layer 323 are all made of the same material and therefore have the same infrared radiation wavelength or infrared radiation efficiency when heating different areas of aerosol-generating product 1000.

[0066] Alternatively, in some other modified embodiments, one and the other two of the infrared emitting layer 321, the infrared emitting layer 322, and the infrared emitting layer 323 may be made of different materials, and their infrared emission spectra may have different WLPs (peak wavelengths, wavelengths corresponding to the maximum radiant power), which may be suited to the optimum absorption wavelength ranges of different organic components in the aerosol-generating product 1000. Alternatively, in some other modified embodiments, the three infrared emitting layers 321, the infrared emitting layer 322, and the infrared emitting layer 323 may be made of different materials, and any two of the infrared emitting layers 321, the infrared emitting layer 322, and the infrared emitting layer 323 may have different infrared emission spectra and / or WLPs.

[0067] Further, in the embodiment shown in FIGS. 2-4, the heater 30 is The heater 30 further includes electrode coatings 331, 341, and 351 arranged at a distance from each other in the circumferential direction, and the electrode coatings 331, 341, and 351 all have an elongated or vertically long shape extending in the vertical direction of the heater 30, and the extending lengths of the electrode coatings 331, 341, and 351 are equal to or greater than the infrared radiation layer 32 / infrared radiation layer 321 / infrared radiation layer 322 / infrared radiation layer 323.

[0068] In addition, in this embodiment, in order to conduct current in the circumferential direction of the infrared emitting layer 321, the electrode coating 331 and the electrode coating 341 are respectively disposed on both sides of the infrared emitting layer 321 in the circumferential direction and are conductively connected to the infrared emitting layer 321.

[0069] In order to guide current in the circumferential direction of the infrared emitting layer 322 , the electrode coating 341 and the electrode coating 351 are respectively disposed on both sides of the infrared emitting layer 322 in the circumferential direction and are conductively connected to the infrared emitting layer 322 .

[0070] In order to guide current in the circumferential direction of the infrared emitting layer 323 , the electrode coating 351 and the electrode coating 331 are respectively disposed on both sides of the infrared emitting layer 323 in the circumferential direction and are conductively connected to the infrared emitting layer 323 .

[0071] 2 to 4, the heater 30 further includes an electrode coating 331, an electrode coating 341, and an electrode coating 351 that are spaced apart sequentially in the circumferential direction, and the electrode coatings 331, 341, and 351 are all elongated or long in shape extending in the longitudinal direction of the heater 30, and the extending lengths of the electrode coatings 331, 341, and 351 are equal to or greater than the infrared emitting layer 32. Furthermore, in implementation, one complete infrared emitting layer 32 is divided or defined by the electrode coatings 331, 341, and 351 to form a plurality of infrared emitting layers that can operate independently. For example, The electrode coatings 331 and 341 define and divide the region of the infrared emitting layer 32 located therebetween as infrared emitting layer 321, and the electrode coatings 331 and 341 can guide a current in the circumferential direction of the infrared emitting layer 321. The electrode coatings 341 and 351 define and divide the region of the infrared emitting layer 32 located therebetween as infrared emitting layer 322, and the electrode coatings 341 and 351 can guide a current in the circumferential direction of the infrared emitting layer 322. The electrode coatings 351 and 331 define and divide the region of the infrared emitting layer 32 located therebetween as infrared emitting layer 323, and the electrode coatings 351 and 331 can guide a current in the circumferential direction of the infrared emitting layer 323.

[0072] In addition, infrared emitting layer 321 and infrared emitting layer 323, each located on either side of electrode coating 331, can be further connected in series by electrode coating 321. In addition, infrared emitting layer 321 and infrared emitting layer 322, each located on either side of electrode coating 341, can be further connected in series by electrode coating 341. In addition, infrared emitting layer 322 and infrared emitting layer 323, each located on either side of electrode coating 351, can be further connected in series by electrode coating 351.

[0073] In some embodiments, electrode coating 331 and / or electrode coating 341 and / or electrode coating 351 may be made of a low resistivity metal or alloy, such as silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or an alloy thereof. Electrode coating 331 and / or electrode coating 341 and / or electrode coating 351 may be formed by spraying, printing, or the like.

[0074] Also, in some embodiments, electrode coating 331 and / or electrode coating 341 and / or electrode coating 351 are essentially elongated in shape and have a width of about 2-4 mm.

[0075] 3 and 4, in order to facilitate connecting the infrared emitting layer 321, the infrared emitting layer 322, and the infrared emitting layer 323 to the circuit board 140, the heater 30 is The electrode sheet 332, the electrode sheet 342, and the electrode sheet 352 are further included. The electrode sheet 332 and / or the electrode sheet 342 and / or the electrode sheet 352 are sheets of a metal or alloy with low resistivity, and the extension length of the electrode sheet 332 and / or the electrode sheet 342 and / or the electrode sheet 352 is greater than the extension length of the electrode coating 331 and / or the electrode coating 341 and / or the electrode coating 351.

[0076] Also, in implementation, electrode sheet 332, electrode sheet 342, and electrode sheet 352 protrude or extend beyond second end 312. Electrode sheet 332, electrode sheet 342, and electrode sheet 352 have a width greater than 1-4 mm.

[0077] During operation, electrode sheet 332 is conductively connected to electrode coating 331 by abutting or adhering to electrode coating 331, electrode sheet 342 is conductively connected to electrode coating 341 by abutting or adhering to electrode coating 341, and electrode sheet 352 is conductively connected to electrode coating 351 by abutting or adhering to electrode coating 351.

[0078] Electrode sheet 332 and / or electrode sheet 342 and / or electrode sheet 352 are each connected to circuit board 140 via a welding lead wire or the like, thereby connecting electrode coating 331 and / or electrode coating 341 and / or electrode coating 351 to circuit board 140. Indirectly connecting electrode coating 331 and / or electrode coating 341 and / or electrode coating 351 to circuit board 140 via the electrode sheet is more convenient for manufacturing heater 30.

[0079] Alternatively, in some alternative embodiments, electrode coating 331 and / or electrode coating 341 and / or electrode coating 351 may be directly connected to circuit board 140 via welded leads or the like.

[0080] In some other modified embodiments, the heater 30 can be made conductive only by laminating the electrode sheet 332 and / or the electrode sheet 342 and / or the electrode sheet 352 directly to the infrared emitting layer, without having the electrode coating 331 and / or the electrode coating 341 and / or the electrode coating 351. That is, the heater 30 can include one or two of the electrode coating 331 and the electrode sheet 332, one or two of the electrode coating 341 and the electrode sheet 342, or one or two of the electrode coating 351 and the electrode sheet 352.

[0081] Or, in some other modified embodiments, the heater 30 It further includes a first temperature sensor 40 that is attached to the infrared radiation layer 321 to detect the temperature of the infrared radiation layer 321, a second temperature sensor that is attached to the infrared radiation layer 322 to detect the temperature of the infrared radiation layer 322, and a third temperature sensor that is attached to the infrared radiation layer 323 to detect the temperature of the infrared radiation layer 323.

[0082] Or, in some other modified embodiments, the heater 30 The heater 30 further includes a thermoplastic sealing member surrounding the first temperature sensor 40 and / or the second temperature sensor and / or the third temperature sensor on the outside of the infrared emitting layer 32 in order to closely contact the first temperature sensor and / or the second temperature sensor and / or the third temperature sensor on the outside of the infrared emitting layer 32.

[0083] In some embodiments, the thermoplastic sealing member includes at least one of a heat-resistant synthetic resin, polytetrafluoroethylene (Teflon®), and silicone, and in some other modified embodiments, the thermoplastic sealing member includes a heat shrink tube or a high-temperature resistant tape.

[0084] Additionally, in some embodiments, a thermoplastic sealant is also used to clamp or hold one or more of electrode sheet 332, electrode sheet 342, and electrode sheet 352 together.

[0085] Or, in some other modified embodiments, the heater 30 The infrared emitting layer 321 and / or the infrared emitting layer 322 and / or the infrared emitting layer 323 further include a heat insulating element surrounding or enclosing them to insulate the outside thereof. The heat insulating element is, for example, a wound aerogel felt, a porous material, a vacuum tube, or the like.

[0086] Alternatively, in some other modified embodiments, the insulating element of the heater 30 is a tube with an internal insulating cavity, and there is an insulating cavity between the inner and outer surfaces of the tubular insulating element, and the pressure in the insulating cavity is lower than the external pressure, i.e., the insulating element is a vacuum insulating tube with a degree of vacuum. Alternatively, in some other modified embodiments, there is an insulating cavity between the inner and outer surfaces of the tubular insulating element, and the insulating cavity is filled with an insulating gas such as argon gas, and at the same pressure and temperature, the thermal conductivity of argon gas is about one-third lower than that of air, providing effective insulation.

[0087] 5 shows a structural schematic diagram of a heater 30 according to another modified embodiment. In this embodiment, the heater 30 comprises: a substrate 31 such as an infrared-transparent quartz tube, glass tube, or ceramic tube; an infrared emitting layer 32 formed on or bonded to the substrate 31; and three or more electrode elements spaced circumferentially to divide and define the infrared emitting layer 32 so as to form three or more infrared emitting layers 321, 322 and 323 or more, each of which heats a different circumferential region of the aerosol generating product 1000.

[0088] 5, the electrode element 331a includes a portion 3311a and a portion 3312a, where the portion 3311a extends from the top to the bottom of the infrared emitting layer 32 or extends from the exposed region 313 to the exposed region 314, and the portion 3312a is a circumferentially extending arc located within the exposed region 314. Similarly, the electrode element 341a includes a portion 3411a and a portion 3412a, where the portion 3411a extends from the top to the bottom of the infrared emitting layer 32 or extends from the exposed region 313 to the exposed region 314, and the portion 3412a is a circumferentially extending arc located within the exposed region 314.

[0089] In this embodiment, the length of exposed region 314 is greater than the length of exposed region 313, the length of exposed region 313 being about 1-3 mm, and the length of exposed region 314 being about 3-6 mm.

[0090] During assembly, the heater 30 forms electrical conduction by abutting or coupling the conductive elements to the portion 3312a of the electrode element 331a and the portion 3412a of the electrode element 341a, respectively, and then connects to the circuit board 140 by welding lead wires or the like to the conductive elements. In practice, the conductive elements to be matched with the electrode element 331a and the electrode element 341a may be in the form of a long strip, a vertically elongated sheet, or the shape and structure of the conductive elements as well as details regarding assembly, fixing, etc. are provided by the applicant in Chinese Patent Application Publication No. CN215958354U, the entire text of which is incorporated herein by reference.

[0091] Corresponding to the infrared radiation layers 321, 322 and 323 arranged sequentially in the circumferential direction of the heater 30, the circuit board 140 can selectively connect any two of the electrode coating 331 / electrode sheet 332, electrode coating 341 / electrode sheet 342 and electrode coating 351 / electrode sheet 352 to the positive and negative electrodes of the battery cell 130 using a switch tube, such as a transistor or MOS tube, so that the infrared radiation layers 321, 322 and 323 simultaneously emit infrared rays to heat the aerosol-generating product 1000, and one of them has a higher heating rate or power than the other two.

[0092] 6 to 8 show schematic diagrams of the infrared emitting layer 321, the infrared emitting layer 322, and the infrared emitting layer 323 simultaneously operating in different power supply modes.

[0093] 6, the electrode coating 331 / electrode sheet 332 are operably connected to the positive electrode of the battery cell 130 via a switch tube or the like, and the electrode coating 341 / electrode sheet 342 are connected to the negative electrode. At this time, a current i11 is generated, flowing from the electrode coating 331 along the circumferential direction via the infrared emitting layer 321 to the electrode coating 341, and a current i12 is generated, flowing from the electrode coating 331 along the circumferential direction via the infrared emitting layer 323 and the infrared emitting layer 322 to the electrode coating 341. At this time, the infrared emitting layer 323 and the infrared emitting layer 322 are connected in series via the electrode coating 351, and the infrared emitting layer 321 is connected in parallel to the infrared emitting layer 323 and the infrared emitting layer 322 connected in series. At this time, the infrared emitting layer 321 in which the current i11 is generated is a minor arc (radians less than π), while the infrared emitting layer 323 and the infrared emitting layer 322 in which the current i12 is generated are a major arc (radians greater than π). In this case, if the infrared emitting layers 321, 322, and 323 are made of the same material, shape, and thickness, it is clear that the current i11 flowing through the infrared emitting layer 321 is twice the current i12 flowing through the series-connected infrared emitting layers 323 and 322, and therefore the power of the infrared emitting layer 321 is four times the power of the infrared emitting layer 322 and / or the infrared emitting layer 323. In this case, the region 1100 surrounded by the infrared emitting layer 321 of the aerosol-generating product 1000 is heated faster or to a higher temperature or with higher power than the region 1200 surrounded by the infrared emitting layer 322 and / or the region 1300 surrounded by the infrared irradiated layer 323. In addition, the power of the infrared emitting layers 322 and 323 is essentially the same.

[0094] 7, the electrode coating 341 / electrode sheet 342 are operably connected to the positive electrode of the battery cell 130 via a switch tube or the like, and the electrode coating 351 / electrode sheet 352 are connected to the negative electrode. At this time, a current i11a flows from the electrode coating 341 to the electrode coating 351 along the circumferential direction via the infrared emitting layer 322, and a current i12a flows from the electrode coating 341 to the electrode coating 351 along the circumferential direction via the infrared emitting layer 321 and the infrared emitting layer 323. At this time, the infrared emitting layer 321 and the infrared emitting layer 323 are connected in series via the electrode coating 331, and the infrared emitting layer 322 is connected in parallel to the series-connected infrared emitting layer 321 and the infrared emitting layer 323. At this time, the operating power of the infrared emitting layer 322 is four times the power of the infrared emitting layer 321 and / or the infrared emitting layer 323. At this time, the area 1200 surrounded by the infrared-emitting layer 322 of the aerosol-generating product 1000 heats faster or at a higher temperature or with higher power than the area 1100 surrounded by the infrared-emitting layer 321 and / or the area 1300 surrounded by the infrared-irradiated layer 323.

[0095] 8, the electrode coating 351 / electrode sheet 352 are operably connected to the positive electrode of the battery cell 130 via a switch tube or the like, and the electrode coating 331 / electrode sheet 332 are connected to the negative electrode. At this time, a current i11b flows from the electrode coating 351 to the electrode coating 331 along the circumferential direction via the infrared emitting layer 323, and a current i12b flows from the electrode coating 351 to the electrode coating 331 along the circumferential direction via the infrared emitting layer 322 and the infrared emitting layer 321. At this time, the infrared emitting layer 322 and the infrared emitting layer 321 are connected in series via the electrode coating 341, and the infrared emitting layer 323 is connected in parallel to the series-connected infrared emitting layer 322 and the infrared emitting layer 321. At this time, the operating power of the infrared emitting layer 323 is four times the power of the infrared emitting layer 322 and / or the infrared emitting layer 321. At this time, the area 1300 surrounded by the infrared-emitting layer 323 of the aerosol-generating product 1000 heats faster or at a higher temperature or with higher power than the area 1200 surrounded by the infrared-emitting layer 322 and / or the area 1100 surrounded by the infrared-irradiated layer 321.

[0096] Based on the above, another embodiment of the present application further provides a control method for controlling the heating of the regions 1100, 1200, and 1300 of the aerosol-generating product 1000 by the heater 30. Furthermore, by selectively adopting a connection method between the heater 30 and the battery cell 130, the regions 1100, 1200, and 1300 of the aerosol-generating product 1000 can be heated simultaneously, and one of the regions 1100, 1200, and 1300 can be heated faster or at a higher temperature or with higher power.

[0097] 9 shows a schematic diagram of temperature curves in the heating process of different regions of aerosol-generating product 1000 in one embodiment, where curve S1 is the temperature curve of region 1100 heated by infrared emitting layer 321, curve S2 is the temperature curve of region 1200 heated by infrared emitting layer 322, and curve S3 is the temperature curve of region 1300 heated by infrared emitting layer 323. As shown in FIG. 9, the heating process includes:

[0098] During a first period (0 to t1 hours), power is supplied from the battery cell 130 to the heater 30 in the manner shown in FIG. 6 to heat the region 1100 faster than the region 1200 and / or the region 1300, and during the first period, the region 1100 is heated to a first target temperature, for example, temperature T1, and the heating temperature or current temperature of the region 1200 and / or the region 1300 is lower than the first target temperature.

[0099] During the second period (time t1 to t2), power can be supplied from the battery cell 130 to the heater 30 in the manner shown in FIG. 7 to heat the region 1200 faster than the region 1100 and / or the region 1300, i.e., during the second period, the region 1200 is heated to a second target temperature, for example, temperature T2, and the heating temperature or current temperature of the region 1300 is lower than the second target temperature.

[0100] During a third period (times t2 to t3), power can be supplied from the battery cell 130 to the heater 30 in the manner shown in FIG. 8 to heat the region 1300 faster than the region 1100 and / or the region 1200, i.e., during the third period, the region 1300 can be heated to a third target temperature, for example, temperature T3, and at time t3, the regions 1100, 1200, and 1300 can be heated to such an extent that their temperatures are substantially close or tend to be close.

[0101] During the fourth period (time t3 to t4 or end), the power supply methods shown in Figures 6 to 8 are periodically switched at relatively short intervals or frequencies to heat regions 1100, 1200, and 1300 to essentially the same temperature until time t4 or end.

[0102] In the above embodiments, by adjusting the electrode elements of each infrared emitting layer 321 / infrared emitting layer 322 / infrared emitting layer 323 for different periods, one area can be heated faster or with greater power than the other two areas.

[0103] During the fourth period, by periodically switching according to the power supply methods in Figures 6, 7 and 8 at frequencies such as 200 ms, 500 ms, 1 s or 2 s, the heating temperatures of regions 1100, 1200 and 1300 during that period are essentially the same, or the difference in their heating temperatures is maintained at less than 20°C.

[0104] In the above embodiments, the first target temperature, the second target temperature, and the third target temperature may be gradually increased, for example, in one specific embodiment, the first target temperature T1 may be set to 220 to 250° C., the second target temperature T2 may be set to 240 to 270° C., and the third target temperature T3 may be set to 260 to 350° C. Also, in the above embodiment, during the fourth period, the temperatures of the regions 1100, 1200, and 1300 are all basically maintained at the third target temperature.

[0105] 9, during the first period, the rate of temperature rise due to heating in regions 1200 and 1300 is smaller than that in region 1100. Furthermore, during the first period, the heating temperatures in regions 1200 and 1300 are lower than the temperature required for large-scale volatilization of the volatile substances in regions 1200 and 1300. As a result, during the first period, regions 1200 and 1300 are only preheated, which is insufficient to generate large amounts of aerosol in regions 1200 and 1300.

[0106] Alternatively, in some other embodiments, the first target temperature T1, the second target temperature T2, and the third target temperature T3 may be the same, or in some embodiments, the first target temperature T1, the second target temperature T2, and the third target temperature T3 gradually decrease in sequence.

[0107] Alternatively, in some other embodiments, the length of the first period is about 10 to 60 seconds, the length of the second period is about 20 to 40 seconds, the length of the third period is about 10 to 30 seconds, and the length of the fourth period is about 60 to 150 seconds. Alternatively, in some embodiments, the length of the fourth period is longer than the lengths of the first period, the second period, and / or the third period. Alternatively, the length of the first period is longer than the lengths of the second period and / or the third period.

[0108] Alternatively, in some other variations, the heating of the aerosol-generating product 1000 may have one or more of a first period, a second period, a third period, and a fourth period. For example, the heating process may only have the first, second, and third periods without having the fourth period process. Or, the heating process may only have the first and fourth periods without having the second and third periods.

[0109] In some embodiments, the first period, the second period, the third period, and the fourth period are consecutive, or in some alternative embodiments, the first period, the second period, the third period, and the fourth period are non-consecutive or spaced apart.

[0110] Alternatively, in another embodiment, there is further provided a method for controlling heating of the aerosol-generating product 1000 by an aerosol-generating device to the regions 1100, 1200, and 1300, the method comprising: during a first time period, causing the infrared emitting layer 321 of the heater 30 to heat the region 1100 with a power P10, the infrared emitting layer 322 to heat the region 1200 with a power P20, and the infrared emitting layer 323 to heat the region 1300 with a power P30, wherein the power P10 is greater than the power P20 and / or the power P10 is greater than the power P30 and / or the power P20 is approximately equal to the power P30; During a second time period, the infrared emitting layer 321 of the heater 30 heats the region 1100 with a power P40, the infrared emitting layer 322 heats the region 1200 with a power P50, and the infrared emitting layer 323 heats the region 1300 with a power P60, and / or the power P50 is greater than the power P40, and / or the power P50 is greater than the power P60, and / or the power P50 is approximately equal to the power P10 and the power P40 is approximately equal to the power P60, and / or the power P40, the power P60, the power P20, and the power P30 are essentially the same, and / or the power P40 and / or the power P60 are less than the power P10; During a third period, the infrared emitting layer 321 of the heater 30 heats the region 1100 with power P70, the infrared emitting layer 322 heats the region 1200 with power P80, and the infrared emitting layer 323 heats the region 1300 with power P90, and / or the power P90 is greater than the power P70, and / or the power P90 is greater than the power P80, and / or the power P90 is approximately equal to the power P10 or the power P50, and / or the power P70 is approximately equal to the power P80.

[0111] Alternatively, in another embodiment, there is further provided a method for controlling heating of regions 1100, 1200 and 1300 of an aerosol-generating product 1000 by an aerosol-generating device. As shown in Figure 11, the method includes: S100, heating region 1100 faster or at a higher temperature or with more power than region 1200 and / or region 1300 during a first time period; heating region 1200 faster or at a higher temperature or with more power than region 1100 and / or region 1300 during a second time period S200; and S300 heating region 1300 faster or at a higher temperature or with more power than region 1100 and / or region 1200 during a third period.

[0112] In some embodiments, the first, second, and third periods are consecutive, or in other embodiments, the first, second, and third periods are non-consecutive, or the first and second periods are spaced apart, or the second and third periods are spaced apart.

[0113] Furthermore, in the above embodiment, regions 1100, 1200, and 1300 of aerosol-generating product 1000 are always heated simultaneously, i.e., heater 30 is essentially unable to selectively or independently heat one or two of regions 1100, 1200, and 1300.

[0114] 10 further shows a schematic diagram of another specific embodiment in which the heater 30 is used to heat regions 1100, 1200, and 1300 of the aerosol-generating product 1000. In FIG. 10, curve S1 is the temperature curve of region 1100 heated by infrared emitting layer 321, curve S2 is the temperature curve of region 1200 heated by infrared emitting layer 322, and curve S3 is the temperature curve of region 1300 heated by infrared emitting layer 323.

[0115] In the specific example shown in Figure 10, the first target temperature, second target temperature, and third target temperature are essentially the same, all approximately 240°C. In some examples of the specific example shown in Figure 10, the length of the first period is approximately 100 to 150 seconds, the length of the second period is approximately 20 to 30 seconds, the length of the third period is approximately 40 to 120 seconds, and the length of the fourth period is approximately 60 to 150 seconds. In one specific example, the length of the first period is approximately 130 seconds, the length of the second period is approximately 25 seconds, the length of the third period is approximately 100 seconds, and the length of the fourth period is approximately 120 seconds.

[0116] In some embodiments, the length of the fourth period is greater than the length of the first period, the second period, and / or the third period, and in some embodiments, the length of the first period is greater than the length of the second period and / or the third period.

[0117] Or, in some other modified embodiments, the heater 30 is a first resistive heating element, a second resistive heating element, and a third resistive heating element arranged sequentially in a circumferential direction, wherein: a first resistive heating element configured to surround and heat region 1100; a second resistive heating element configured to surround and heat region 1200; A third resistive heating element is configured to surround and heat region 1300 .

[0118] Alternatively, FIG. 10 shows a schematic diagram of a heater 30 according to another modified embodiment, in which the heater 30b is an infrared-transparent substrate 31b configured in a tubular shape that surrounds or contains the aerosol-generating product 1000; an infrared radiation layer 32b formed on the base 31b and essentially having a closed ring shape in the circumferential direction; and at least two electrode elements, such as electrode element 341b and electrode element 351b, arranged circumferentially spaced apart from each other on or coupled to the infrared emitting layer 32b, and further, the electrode elements 341b and 351b divide the infrared emitting layer 32b into an infrared emitting region 321b and an infrared emitting region 322b located on either side of a virtual connecting line m between the electrode elements 341b and 351b.

[0119] In an embodiment, the electrode elements 341b and 351b are arranged asymmetrically in the radial direction of the heater 30b and / or the infrared emitting layer 32b, or are configured to have an asymmetry rotated 180° around the central axis O of the heater 30b. Alternatively, the distance d1 between the electrode elements 341b and 351b is smaller than the outer diameter D of the infrared emitting layer 32b or the heater 30b. As a result, the radians in the circumferential direction of the infrared emitting region 321b are minor arcs, and the radians in the circumferential direction of the infrared emitting region 322b are major arcs. In some preferred embodiments, the minor arc radians of the infrared emitting region 321b are between π / 9 and 8π / 9, i.e., the angle is approximately 20° and 160°. Correspondingly, the major arc radians of the infrared emitting region 322b are between 10π / 9 and 17π / 9, i.e., the angle is approximately 200° and 340°.

[0120] Furthermore, in implementation, by connecting one of electrode element 341b and electrode element 351b to the positive electrode of battery cell 130 and the other to the negative electrode, during operation, the power or heating rate of infrared radiation region 321b is greater than that of infrared radiation region 322b, and further, during operation, region 1100b surrounded by infrared radiation region 321b of aerosol generating product 1000 can be heated faster or with greater power than region 1200b surrounded by infrared radiation region 322b.

[0121] It should be noted that the specification and drawings of this application show preferred embodiments of the present application, but are not limited to the embodiments described in this specification, and that those skilled in the art may make improvements and modifications based on the above description, and all such improvements and modifications shall fall within the scope of protection of the appended claims of this application.

Claims

1. 1. An aerosol generating device configured to heat an aerosol-generating product to generate an aerosol, comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and used to heat the aerosol-generating product, the heater including at least a first heating zone, a second heating zone, and a third heating zone sequentially arranged to surround the cavity in a circumferential direction; a battery cell for supplying power to the heater; and a circuit configured to control the battery cell to supply power to the heater so that the first heating area, the second heating area, and the third heating area are heated simultaneously and selectively one of the first heating area, the second heating area, and the third heating area can be heated faster or with greater power than the other two.

2. 2. The aerosol generating device according to claim 1, wherein the heater is configured so as not to heat only one or two of the first heating region, the second heating region, and the third heating region.

3. 3. The aerosol generating device according to claim 1, wherein the first heating region, the second heating region, and the third heating region are configured so that they can only be heated simultaneously.

4. the heater does not have more heating zones than the first heating zone, the second heating zone, and the third heating zone; 3. The aerosol generating device according to claim 1, wherein the heater includes only three heating zones.

5. 3. The aerosol generating device of claim 1, wherein the radian angle in the circumferential direction of one of the heaters among the first heating region, the second heating region, and the third heating region that is heated faster or with higher power is less than π, and the sum of the radian angles in the circumferential direction of the other two heaters that are heated slower or with lower power is greater than π.

6. the heater includes at least a first heating element, a second heating element, and a third heating element that are sequentially arranged to surround the circumferential direction of the cavity; the first heating element at least partially defines the first heating zone; the second heating element at least partially defines the second heating zone; 3. An aerosol generating device according to claim 1 or 2, characterized in that the third heating element at least partially defines the third heating zone.

7. The aerosol generating device described in claim 6, characterized in that the circuit is configured to heat one of the first heating area, the second heating area and the third heating area faster or with greater power than the other two by selectively changing the electrical connection relationship between the first heating element, the second heating element and the third heating element.

8. The aerosol generating device of claim 6, characterized in that the circuit is configured to selectively connect two of the first heating element, the second heating element, and the third heating element in series and then connect the other one in parallel, thereby heating one of the first heating area, the second heating area, and the third heating area faster or with greater power than the other two.

9. The aerosol generating device of claim 8, wherein the radians in the circumferential direction of two of the first, second and third heating elements connected in series are greater than π, and the radians in the circumferential direction of the remaining one of the heaters are less than π.

10. the heater further includes a first electrode element, a second electrode element, and a third electrode element sequentially arranged to surround the circumferential direction of the cavity, the first heating element is at least partially electrically connected between the first and second electrode elements such that, in use, a current can be conducted to the first heating element by the first and second electrode elements; the second heating element is at least partially electrically connected between the second and third electrode elements such that, in use, a current can be conducted to the second heating element by the second and third electrode elements; 7. The aerosol generating device of claim 6, wherein the third heating element is at least partially electrically connected between the third electrode element and the first electrode element so that current can be conducted to the third heating element by the third electrode element and the first electrode element during use.

11. The aerosol generating device described in claim 10, characterized in that the circuit is configured to selectively connect only two of the first electrode element, the second electrode element, and the third electrode element to supply power to the heater so that one of the first heating area, the second heating area, and the third heating area is heated faster or with greater power than the other two.

12. any two of the first electrode element, the second electrode element, and the third electrode element are disposed asymmetrically in a radial direction of the heater, And / or, any two of the first electrode element, the second electrode element and the third electrode element have an asymmetry rotated 180 degrees around the central axis of the heater.

13. the first heating element is at least one of an infrared heating element or a resistive heating element; and / or the second heating element is at least one of an infrared heating element or a resistive heating element; 7. The aerosol generating device according to claim 6, wherein the third heating element is at least one of an infrared heating element and a resistance heating element.

14. The heater is a substrate at least partially surrounding the cavity; an infrared emitting layer formed on or bonded to the substrate; 3. The aerosol generating device according to claim 1, comprising a first electrode element, a second electrode element, and a third electrode element arranged so as to surround the circumferential direction of the base, wherein the first heating region is defined by a portion of the infrared emitting layer located between the first electrode element and the second electrode element, the second heating region is defined by a portion of the infrared emitting layer located between the second electrode element and the third electrode element, and the third heating region is defined by a portion of the infrared emitting layer located between the third electrode element and the first electrode element.

15. The aerosol generating device described in claim 1 or 2, characterized in that the circuit is configured to control the battery cell to supply power to the heater so that the first heating area is heated faster or with greater power than the second heating area and / or the third heating area during a first period, the second heating area is heated faster or with greater power than the first heating area and / or the third heating area during a second period, and the third heating area is heated faster or with greater power than the first heating area and / or the second heating area during a third period.

16. During the first time period, the power supplied by the circuit to the first heating region is essentially four times the power supplied to the second heating region and / or the third heating region; and / or during the second time period, the power supplied by the circuit to the second heating zone is essentially four times the power supplied to the first heating zone and / or the third heating zone; And / or the aerosol generating device described in claim 15, characterized in that during the third period, the power supplied by the circuit to the third heating area is essentially four times the power supplied to the first heating area and / or the second heating area.

17. The aerosol generating device of claim 1 or 2, characterized in that the circuit is configured to control the battery cell to supply power to the heater so that, during a first period, the first heating area is heated at a first power, and the second heating area and the third heating area are heated at essentially the same second power, during a second period, the second heating area is heated at a third power, and the first heating area and the third heating area are heated at essentially the same fourth power, and during a third period, the third heating area is heated at a fifth power, and the first heating area and the second heating area are heated at essentially the same sixth power.

18. The aerosol generating device described in claim 15, characterized in that the circuit is further configured to control the battery cell to supply power to the heater so that during a first period, the first heating area is heated to a first target temperature and the second heating area and the third heating area are at a temperature lower than the first target temperature, during a second period, the second heating area is heated to a second target temperature and the third heating area is at a temperature lower than the second target temperature, and during a third period, the third heating area is heated to a third target temperature and the first heating area and the second heating area are at or above the third target temperature.

19. the first period is 100 to 150 seconds; and / or the second period is 20 to 30 seconds; and / or the length of the third period is about 60 to 120 seconds; And / or the length of the fourth period is about 60 to 150 seconds.

20. 1. An aerosol generating device configured to generate an aerosol by heating an aerosol-generating product including a first region, a second region, and a third region sequentially arranged in a circumferential direction, the aerosol generating device comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product; and a circuit configured to control the battery cell to supply power to the heater so that the first, second, and third regions of the aerosol-generating product are heated simultaneously, and so that during a first period the first region is heated to a first target temperature and the second and third regions are lower than the first target temperature, during a second period the second region is heated to a second target temperature and the third region is lower than the second target temperature, and during a third period the third region is heated to a third target temperature and the first and second regions are equal to or higher than the third target temperature.

21. 1. An aerosol generating device configured to heat an aerosol-generating product to generate an aerosol, comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product, the heater comprising at least: a first heating element, a second heating element, and a third heating element arranged in sequence so as to surround the circumferential direction of the cavity; a first electrode element, a second electrode element, and a third electrode element arranged sequentially to surround the circumferential direction of the cavity, wherein the first heating element is at least partially electrically connected between the first and second electrode elements such that, during use, a current can be conducted to the first heating element by the first and second electrode elements; the second heating element is at least partially electrically connected between the second and third electrode elements such that, in use, a current can be conducted to the second heating element by the second and third electrode elements; An aerosol generating device characterized in that the third heating element is at least partially electrically connected between the third electrode element and the first electrode element so that current can be conducted to the third heating element by the third electrode element and the first electrode element during use.

22. and a circuit configured to selectively connect only two of the first, second, and third electrode elements to supply power to the heater, such that one of the first, second, and third heating elements heats faster or with more power than the other two.

22. The aerosol generating device according to claim 21.

23. 1. An aerosol generating device configured to heat an aerosol-generating product to generate an aerosol, comprising: a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and adapted to heat the aerosol-generating product, the heater comprising at least: a first heating element and a second heating element arranged in sequence so as to surround the circumferential direction of the cavity; and a first electrode element and a second electrode element arranged in sequence so as to surround the circumferential direction of the cavity, the first electrode element and the second electrode element being used to introduce current to the first heating element and the second heating element in the circumferential direction of the heater, the first heating element is on a first side of a virtual connecting line between the first electrode element and the second electrode element, and the radian in the circumferential direction of the heater is less than π; An aerosol generating device, characterized in that the first heating element is on the second side of the imaginary connecting line between the first electrode element and the second electrode element, and the radian in the circumferential direction of the heater is greater than π.

24. the first electrode element and the second electrode element are arranged asymmetrically in a radial direction of the heater, The aerosol generating device according to claim 23, wherein the first electrode element and the second electrode element have an asymmetry that rotates 180° around the central axis of the heater.

25. It is configured in a tubular shape and has at least a first heating element, a second heating element, and a third heating element arranged in sequence in a circumferential direction of the heater; a first electrode element, a second electrode element and a third electrode element arranged sequentially in a circumferential direction of the heater, the first heating element being at least partially electrically connected between the first and second electrode elements such that, in use, a current can be conducted to the first heating element by the first and second electrode elements; the second heating element is at least partially electrically connected between the second and third electrode elements such that, in use, a current can be conducted to the second heating element by the second and third electrode elements; A heater for an aerosol generating device, characterized in that the third heating element is at least partially electrically connected between the third electrode element and the first electrode element so that current can be conducted to the third heating element by the third electrode element and the first electrode element during use.

26. It is configured in a tubular shape and has at least a first heating element and a second heating element arranged in sequence so as to surround the circumferential direction of the cavity; and a first electrode element and a second electrode element arranged in sequence so as to surround the circumferential direction of the cavity, the first electrode element and the second electrode element being used to introduce current to the first heating element and the second heating element in the circumferential direction of the heater, the first heating element is on a first side of a virtual connecting line between the first electrode element and the second electrode element, and the radian in the circumferential direction of the heater is less than π; A heater for an aerosol generating device, characterized in that the first heating element is on the second side of the imaginary connection line between the first electrode element and the second electrode element, and the radians in the circumferential direction of the heater are greater than π.

27. configured to heat the aerosol-generating product to generate an aerosol; a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and used to heat an aerosol-generating product, the heater including at least a first heating zone, a second heating zone and a third heating zone arranged sequentially in a circumferential direction to heat different parts of the aerosol-generating product, the method comprising: supplying power to the heater to simultaneously heat the first heating area, the second heating area, and the third heating area; adjusting electrode elements of at least some of the first, second, and third heating regions so that one of the first, second, and third heating regions heats faster or with greater power than the other two heating regions. A method for controlling an aerosol generating device, comprising:

28. an aerosol-generating product configured to generate an aerosol by heating the aerosol-generating product, the aerosol-generating product including a first region, a second region, and a third region sequentially arranged in a circumferential direction; a cavity at least partially adapted to receive the aerosol-generating product; a heater configured to at least partially surround the cavity and used to heat the aerosol-generating product, comprising: applying power to the heater to simultaneously heat the first region, the second region, and the third region of the aerosol-generating product; heating the first region to a first target temperature higher than the current temperatures of the second and third regions during a first time period; heating the second region to a second target temperature greater than the current temperature of the third region during a second time period; and heating the third region to a third target temperature during a third time period, the third target temperature approaching the current temperatures of the first and second regions. A method for controlling an aerosol generating device, comprising:

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