Aerosol generator, heater for aerosol generator, and control method

Abstract

This application provides an aerosol generator, a heater for the aerosol generator, and a control method. The aerosol generator includes a cavity for receiving an aerosol product, a first heating element and a second heating element arranged longitudinally within the cavity for heating the aerosol product, and a battery cell for supplying power. The aerosol generator is configured such that one of the first and second heating elements can be selectively connected to the battery cell alone for independent heating, or the first and second heating elements can be selectively connected to the battery cell in series or parallel for simultaneous heating. The aerosol generator described above allows the connection of the first and second heating elements to the battery cell to be changed between individual or simultaneous connection, which is advantageous for flexibly selecting between individual or simultaneous differentiated heating of the aerosol product.

Description

【Technical Field】 【0001】 (Cross - reference to related applications) This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on April 11, 2023, with application number 202310400707.0 and application title "Aerosol Generation Device, Heater for Aerosol Generation Device, and Control Method", and all of its contents are incorporated herein by reference. 【0002】 The embodiments of this application relate to the technical field of aerosol generation, and in particular, to an aerosol generation device, a heater for an aerosol generation device, and a control method. 【Background Art】 【0003】 Tobacco products (such as cigarettes, cigars, etc.) generate tobacco smoke by burning tobacco during use. As an alternative to these products that burn tobacco, attempts have been made to manufacture products that release compounds without combustion. 【0004】 Examples of such products include heating devices that release compounds by heating rather than burning materials. For example, the material may be an aerosol - generating product of tobacco or other non - tobacco products, and these non - tobacco products may or may not contain nicotine. In known heating devices, to heat an aerosol - generating product to a temperature at which volatile components capable of forming an aerosol can be released, the aerosol - generating product is generally surrounded by a tubular infrared emitter, and an aerosol is generated by heating with infrared radiation. The tubular infrared emitter generally includes a tubular infrared - transmissive substrate such as a quartz tube and an infrared - emitting coating deposited on the outside of the substrate. 【Summary of the Invention】 【0005】 One embodiment of this application is an aerosol generation device arranged to heat an aerosol - generating product to generate an aerosol, a cavity for receiving the aerosol - generating product, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, The first heating element and the second heating element include a battery cell for supplying power to the first heating element, The present invention provides an aerosol generator configured to allow for the selective and independent electrical connection of one of the first heating element and the second heating element to the battery cell for independent heating, as well as the selective series or parallel connection of the first heating element and the second heating element to the battery cell for simultaneous heating. 【0006】 In some examples, The device includes an opening for receiving at least partially the aerosol-generating product into the cavity during use, or for removing it from the cavity. The first heating element is closer to the opening than the second heating element. 【0007】 In some examples, The substrate includes at least partially enclosing or defining the cavity, The first heating element includes a coating or film or heating mesh bonded to the substrate, and / or the second heating element includes a coating or film or heating mesh bonded to the substrate. 【0008】 In some embodiments, the first heating element includes at least one of an infrared heating element or a resistance heating element. and / or, the second heating element includes at least one of an infrared heating element or a resistance heating element. 【0009】 In some embodiments, when the first heating element and the second heating element are electrically connected to the battery cell by series connection and heated simultaneously, the operating power of the first heating element is smaller than the operating power of the second heating element. 【0010】 In some embodiments, when the first heating element and the second heating element are electrically connected to the battery cell by parallel connection and heated simultaneously, the power of the first heating element is greater than the power of the second heating element. 【0011】 In some embodiments, the aerosol generator is During the first period, the first heating element is electrically connected to the battery cell on its own, and the first heating element is heated on its own. During the second period, the first heating element and the second heating element are electrically connected to the battery cell in series, and are arranged so that the first heating element and the second heating element heat simultaneously. 【0012】 In some embodiments, the aerosol generator is During the first period, the first heating element is electrically connected to the battery cell on its own, and the first heating element is heated on its own. During the second period, the first heating element and the second heating element are electrically connected to the battery cell in parallel, and are arranged so that the first heating element and the second heating element heat simultaneously. 【0013】 In some embodiments, the aerosol generator is configured to control the power supplied to the first heating element and the second heating element by the battery cell so that, during a first period, the temperature of the first heating element is higher than the temperature of the second heating element so that there is a first temperature difference, and during a second period, the temperature of the first heating element is higher than the temperature of the second heating element so that there is a second temperature difference. The first temperature difference is greater than the second temperature difference. 【0014】 In some examples, It further includes a first electrode, a second electrode, and a third electrode that are selectively electrically connected to the battery cell, The first heating element is at least partially electrically connected between the first electrode and the second electrode, and the second heating element is at least partially electrically connected between the first electrode and the third electrode. 【0015】 In some embodiments, the aerosol generating device is arranged to electrically connect one or two of the first heating element and the second heating element to the battery cell by selectively electrically connecting two or three of the first electrode, the second electrode and the third electrode to the battery cell. 【0016】 In some embodiments, at least a part of the first electrode extends from the first heating element to the second heating element and is arranged to be electrically conductive with the first heating element and the second heating element simultaneously. The second electrode is arranged on the first heating element, avoids the second heating element, and is electrically conductive with the first heating element. The third electrode is arranged on the second heating element, avoids the first heating element, and is electrically conductive with the second heating element. 【0017】 In some embodiments, One or more fourth electrodes are further included, which are arranged at intervals in the circumferential direction with respect to the first heating element, reduce the resistance value of the first heating element, and are not electrically connected to the battery cell. 【0018】 In some embodiments, one or more fourth electrodes are further included, which partition the first heating element so as to define at least two heating regions connected in series between the first electrode and the second electrode by being arranged at intervals in the circumferential direction with respect to the first heating element. 【0019】 In some embodiments, the width of the fourth electrode in the circumferential direction of the cavity is smaller than the width of the first electrode and / or the second electrode and / or the third electrode in the circumferential direction of the cavity. 【0020】 In some embodiments, the width of the fourth electrode in the circumferential direction of the cavity is 0.5 to 3 mm. 【0021】 In some embodiments, the width of the cavity in the circumferential direction of the first electrode and / or the second electrode and / or the third electrode is 2 to 5 mm. 【0022】 In some embodiments, One or more fifth electrodes that are arranged at intervals in the circumferential direction from the second heating element, reduce the resistance value of the second heating element, and are not electrically connected to the battery cell are further included. 【0023】 In some embodiments, the number of the fifth electrodes is different from the number of the fourth electrodes, and / or the width of the cavity in the circumferential direction of the fourth electrode is different from the width of the cavity in the circumferential direction of the fifth electrode. 【0024】 In some embodiments, One or more fifth electrodes that partition the second heating element are further included so as to define at least two heating regions connected in series between the first electrode and the third electrode by being arranged at intervals from the second heating element in the circumferential direction. 【0025】 In some embodiments, the second electrode and the third electrode are provided in alignment in the longitudinal direction of the cavity. 【0026】 In some embodiments, the first electrode and the second electrode are arranged opposite to each other in the radial direction of the cavity, and / or the first electrode and the third electrode are arranged opposite to each other in the radial direction of the cavity. 【0027】 In some embodiments, the aerosol generating device includes only two heating elements. 【0028】 In some embodiments, a first temperature sensor for detecting the temperature of the first heating element, and / or a second temperature sensor for detecting the temperature of the second heating element are further included. 【0029】 In some embodiments, the aerosol generator is During the first period, the first heating element and the second heating element are electrically connected to the battery cell in parallel, and the first heating element and the second heating element are heated simultaneously. During the second period, the first heating element and the second heating element are electrically connected to the battery cell in series, and are arranged so that the first heating element and the second heating element heat simultaneously. 【0030】 Another embodiment of this application is an aerosol generating apparatus arranged to heat an aerosol generating product to generate an aerosol, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, A battery cell for supplying power to the first heating element and the second heating element, Further, we present an aerosol generator comprising a circuit arranged to heat the first heating element alone by controlling the battery cell to supply power to the first heating element alone during a first period, and to heat the first heating element and the second heating element simultaneously by controlling the battery cell to supply power to both the first heating element and the second heating element simultaneously during a second period. 【0031】 In some embodiments, the first heating element and the second heating element are connected in series during the second period. 【0032】 In some embodiments, during the second period, the operating power of the first heating element is less than the operating power of the second heating element. 【0033】 Another embodiment of this application is an aerosol generating apparatus arranged to heat an aerosol generating product to generate an aerosol, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, A battery cell for supplying power to the first heating element and the second heating element, The system includes a circuit that controls the power supplied to the first heating element and the second heating element by the battery cell, thereby causing the temperature of the first heating element to be higher than that of the second heating element during a first period so as to have a first temperature difference, and during a second period so as to have a second temperature difference, Further, we present an aerosol generator in which the first temperature difference is greater than the second temperature difference. 【0034】 Another embodiment of this application is an aerosol generating apparatus arranged to heat an aerosol generating product to generate an aerosol, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, A battery cell for supplying power to the first heating element and the second heating element, Further, we present an aerosol generator comprising a first electrode, a second electrode, and a third electrode selectively electrically connected to the battery cell, wherein the first heating element is at least partially electrically connected between the first electrode and the second electrode, and the second heating element is at least partially electrically connected between the first electrode and the third electrode. 【0035】 In some examples, The device further includes one or more fourth electrodes, which are not electrically connected to the battery cell, and which are arranged at intervals around the first heating element in the circumferential direction, thereby dividing the first heating element and defining at least two heating regions connected in series between the first electrode and the second electrode. 【0036】 In some examples, The second heating element is partitioned at intervals in the circumferential direction, thereby defining at least two heating regions connected in series between the first electrode and the third electrode, and further includes one or more fifth electrodes that are not electrically connected to the battery cell. 【0037】 In some embodiments, the number of the fifth electrode differs from the number of the fourth electrode. And / or, the circumferential width of the cavity of the fourth electrode is different from the circumferential width of the cavity of the fifth electrode. 【0038】 Another embodiment of this application is, A first heating element and a second heating element are arranged in order in the vertical direction, Including a first electrode, a second electrode, and a third electrode, Further, we present a heater for an aerosol generator, wherein the first heating element is at least partially electrically connected between the first electrode and the second electrode and supplies power to the first heating element via the first electrode and the second electrode, and the second heating element is at least partially electrically connected between the first electrode and the third electrode and supplies power to the second heating element via the first electrode and the third electrode. 【0039】 In some examples, The present invention further includes one or more fourth electrodes that partition the first heating element and do not supply power to the first heating element, by being spaced apart in the circumferential direction of the first heating element, thereby defining at least two heating regions connected in series between the first electrode and the second electrode. 【0040】 In some examples, The present invention further includes one or more fifth electrodes that partition the second heating element and do not supply power to the second heating element, by being spaced apart in the circumferential direction of the second heating element, thereby defining at least two heating regions connected in series between the first electrode and the third electrode. 【0041】 Another embodiment of this application is, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, A control method for an aerosol generator including the first heating element and a battery cell for supplying power to the second heating element, Further, we present a control method for an aerosol generator, which includes the steps of: controlling the battery cell to supply power to the first heating element alone during a first period, thereby causing the first heating element to heat independently; and controlling the battery cell to supply power to the first heating element and the second heating element simultaneously during a second period, thereby causing the first heating element and the second heating element to heat simultaneously. 【0042】 Another embodiment of this application is, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, A control method for an aerosol generator including the first heating element and a battery cell for supplying power to the second heating element, During the first period, the first heating element and the second heating element are electrically connected to the battery cell in parallel, and the first heating element and the second heating element are heated simultaneously. Further, we present a control method for an aerosol generator, which includes the step of electrically connecting the first heating element and the second heating element to the battery cell in series during the second period, thereby simultaneously heating the first heating element and the second heating element. 【0043】 Another embodiment of this application is, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product, A control method for an aerosol generator including the first heating element and a battery cell for supplying power to the second heating element, The process includes controlling the power supplied to the first heating element and the second heating element by the battery cell to raise the temperature of the first heating element to a higher level than the temperature of the second heating element in a first period so as to have a first temperature difference, and raising the temperature of the first heating element to a higher level than the temperature of the second heating element in a second period so as to have a second temperature difference. A control method for an aerosol generator is further proposed, wherein the first temperature difference is greater than the second temperature difference. 【0044】 The aerosol generating device described above allows the connection of the first heating element and the second heating element to the battery cell to be changed to a single or simultaneous connection, which is advantageous for flexibly selecting differentiated heating of the aerosol generating product, either individually or simultaneously. [Brief explanation of the drawing] 【0045】 One or more embodiments are illustrated by corresponding figures in the drawings, but these illustrative descriptions are not limiting to the embodiments. Elements with the same reference numeral in the drawings represent similar elements, and unless otherwise specified, the figures in the drawings are not limiting in scale. 【0046】 [Figure 1] This is a schematic diagram of an aerosol generator provided in one embodiment. [Figure 2] This is a schematic diagram of the structure of a heater in one embodiment, viewed from one angle. [Figure 3] Figure 2 is a schematic diagram of the heater's structure from a different viewing angle. [Figure 4] Figure 2 is a schematic diagram of the heater at one viewing angle. [Figure 5] This is a schematic diagram of the circumferential direction when current is passed through the heater in one embodiment. [Figure 6] This is a schematic diagram of the circumferential direction when current is passed through the heater in another embodiment. [Figure 7] This is a schematic diagram of the circumferential direction when current is passed through the heater in another embodiment. [Figure 8]This is a schematic diagram of the structure of a heater in another embodiment, viewed from one angle. [Figure 9] Figure 8 is a schematic diagram of the heater's structure from a different viewing angle. [Figure 10] This is a curve showing the heating of an aerosol-generating product by a heater in one embodiment. [Modes for carrying out the invention] 【0047】 To facilitate understanding of this application, it will be described in more detail below with reference to the drawings and specific embodiments. 【0048】 One embodiment of this application provides an aerosol generator 100 that forms an inhalable aerosol by heating 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. 【0049】 In more selective implementations, the aerosol generating product 1000 preferably uses a tobacco-containing material that releases volatile compounds from the substrate when heated, or it may be a non-tobacco material suitable for generating smoke by electric heating after heating. The aerosol generating product 1000 preferably uses a solid substrate, which may include one or more powders, granules, elongated fragments, strips, or sheets of one or more of vanilla leaves, tobacco leaves, homogenized tobacco, or expanded tobacco, or the solid substrate may contain additional tobacco or non-tobacco volatile flavor compounds that are released when the substrate is heated. 【0050】 Furthermore, as shown in Figure 1, after the aerosol generating product 1000 is received by the aerosol generator 100, a part of it, such as the filter, is exposed outside the aerosol generator 100, which is advantageous for the user's smoking. 【0051】 As shown in Figure 1, the structure of the aerosol generator according to one embodiment of this application is configured such that the entire outer shape of the device is substantially flattened cylindrical, and the external members of the aerosol generator 100 have a hollow structure inside and further form an assembly space that can be used for necessary functional components such as electronic devices and heaters, and include a housing 10 having a near end 110 and a far end 120 that face each other in the longitudinal direction. The near end 110 is provided with an opening 111 that allows the aerosol generating product 1000 to be received into the housing 10 for heating, or to be removed from the housing 10. The far end 120 is provided with an intake port 121 to allow outside air to enter the housing 10 while smoking. 【0052】 Furthermore, as shown in Figure 1, the aerosol generator 100 is The apparatus further includes a cavity for housing or receiving an aerosol generating product 1000, which can be removably received into the cavity through an opening 111 during use. In some embodiments, the aerosol generating product 1000 has a length greater than 30 mm that is surrounded and heated by the heater 30. 【0053】 Furthermore, as shown in Figure 1, the aerosol generator 100 is The air passage 150 is located between the cavity and the intake port 121, and as shown by arrow R11 in Figure 1, during use, the air passage 150 provides a passage route from the intake port 121 into the cavity / aerosol generating product 1000. 【0054】 Furthermore, as shown in Figure 1, the aerosol generator 100 further includes a battery cell 130 for supplying power and a circuit board 140 such as a PCB board on which circuits or an MCU controller are arranged. Preferably, the battery cell 130 is a rechargeable DC battery cell 130 that can be charged after being connected to an external power source. The circuit may be an integrated circuit. 【0055】 Furthermore, as shown in Figure 1, the aerosol generator 100 is The housing further includes a heater 30 that at least partially surrounds and defines the cavity, and when the aerosol generating product 1000 is received into the housing 10, the heater 30 heats the aerosol generating product 1000 from its outer periphery, at least partially surrounding or encircling it. Also, when the aerosol generating product 1000 is received into the housing 10, at least a portion of it is housed and held within the heater 30. 【0056】 Furthermore, in the embodiments shown in Figures 2 and 3, the heater 30 is basically configured in a vertically elongated tubular shape. During use, the tubular base 31 has an internal hollow portion 310 that at least partially defines a space for containing and holding the aerosol generating product 1000, The embodiment includes a first heating element 32 and a second heating element 33 arranged on a substrate 31, wherein the first heating element 32 and / or the second heating element 33 are formed on the outer surface of the substrate 31 by methods such as deposition, spraying, or wrapping. Alternatively, in some other embodiments, the first heating element 32 and / or the second heating element 33 are formed on the inner surface of the substrate 31. 【0057】 In some embodiments, the first heating element 32 and / or the second heating element 33 are infrared radiation layers, for example, electroluminescent infrared radiation layers, and by directly supplying a DC voltage to the first heating element 32 and / or the second heating element 33, the first heating element 32 and / or the second heating element 33 emit infrared radiation under voltage drive, thereby enabling the heating of the aerosol generating product 1000. 【0058】 In some embodiments, the first heating element 32 and / or the second heating element 33 for emitting infrared radiation may be a ceramic material, such as zirconium, or a coating made of Fe-Mn-Cu, tungsten, or transition metal and their oxide materials. Furthermore, for example, in some embodiments, the first heating element 32 and / or the second heating element 33 for emitting infrared radiation may be made of an oxide of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, or Zn, and these metal oxides can emit far-infrared radiation with a heating effect when heated to a suitable temperature. 【0059】 In some embodiments, the first heating element 32 and the second heating element 33 are made of the same material and therefore have the same infrared radiation wavelength or infrared radiation efficiency when heating different segments of the aerosol generating product 1000. Alternatively, in some other modified embodiments, the first heating element 32 and the second heating element 33 are made of different materials and have different infrared emission spectra, for example, different WLPs (peak wavelengths, which correspond to the maximum value of radiated power), which can be suited to the optimal absorption wavelength ranges of different organic components in the aerosol generating product 1000, respectively. When applied to the first heating element 32 and / or second heating element 33 which heat by emitting infrared radiation, the material of the substrate 31 is an infrared-transmitting material such as quartz, glass, or ceramics. 【0060】 In some other embodiments, the first heating element 32 and / or the second heating element 33 is a resistive heating layer, and by passing an electric current through the first heating element 32 and / or the second heating element 33, the first heating element 32 and / or the second heating element 33 can generate heat by resistive Joule heating to heat the aerosol generating product 1000. In some other embodiments, the first heating element 32 and / or the second heating element 33 for heating by generating resistive Joule heating may include nichrome, ferronickel, platinum, tungsten, silver, conductive ceramic, etc. Alternatively, in some other selectable embodiments, the resistive first heating element 32 and / or the second heating element 33 may be a resistive heating mesh or resistive heating tube, etc., that is wound around or coupled to the substrate 31. 【0061】 When applied to a first heating element 32 and / or a second heating element 33 that generate heat and heat through resistance, the material of the base 31 is a material with excellent thermal conductivity, such as ceramic, glass, a metal or alloy with an insulated surface, such as anodized aluminum, aluminum alloy, copper alloy, stainless steel, etc. In some embodiments, the thermal conductivity of the base 31 is at least 10 W / mk, preferably at least 100 W / mk, or in some embodiments, the thermal conductivity of the base 31 is greater than or higher than 200 W / mk. In some embodiments, the base 31 includes a metal suitable for such high thermal conductivity, such as aluminum, copper, titanium, or an alloy of at least one of them. 【0062】 Furthermore, in some embodiments, the thickness of the first heating element 32 and / or the second heating element 33 can be preferably controlled to 10 μm to 300 μm, and the method for forming the first heating element 32 and / or the second heating element 33 on the surface of the tubular substrate 31 may be to spray them onto the outer surface of the tubular substrate 31 using atmospheric plasma spraying and then cure them. 【0063】 In some embodiments, the first heating element 32 and the second heating element 33 are arranged sequentially at intervals. Furthermore, the first heating element 32 and / or the second heating element 33 are basically annular in shape surrounding the base 31 and are closed in the circumferential direction. 【0064】 In some specific embodiments, the substrate 31 has a wall thickness of approximately 0.05 to 1 mm, an inner diameter of approximately 5.0 to 8.0 mm, and a length of approximately 30 to 60 mm. 【0065】 In some embodiments, the first heating element 32 and / or the second heating element 33 are coatings or thin layers formed on the substrate 31 by deposition or spraying. Alternatively, in some other embodiments, the first heating element 32 and / or the second heating element 33 are films wrapped around or bonded to the substrate 31. 【0066】 In some embodiments, the first heating element 32 and the second heating element 33 have essentially the same length. For example, in one specific embodiment, the length dimensions of both the first heating element 32 and the second heating element 33 are 10 to 20 mm, and further, for example, in one specific embodiment, the length dimension of the first heating element 32 and / or the second heating element 33 is 12 mm. 【0067】 Alternatively, in some other modified embodiments, the lengths of the first heating element 32 and / or the second heating element 33 are different. Or, in some other modified embodiments, the length of the first heating element 32 is shorter than the length of the second heating element 33. 【0068】 Alternatively, in some other embodiments, the heater 30 may include only two infrared radiation layers, namely only a first heating element 32 and a second heating element 33. Alternatively, in some other embodiments, the heater 30 may further include more heating layers, for example, four, five, six or more heating layers arranged sequentially at intervals in the axial direction of the substrate 31. 【0069】 Furthermore, Figures 2 to 4 show schematic diagrams of the structure of a heater 30 in one embodiment, and in this embodiment, the heater 30 is Including a first end 311 and a second end 312 opposite in the axial direction, in the embodiment, both ends of the substrate 31 in the longitudinal direction define the first end 311 and the second end 312 of the heater 30, respectively, and the internal cavity 310 of the substrate 31 defines a cavity that receives at least an aerosol generating product 1000. Furthermore, the first heating element 32 and the second heating element 33 are formed on the substrate 31 and are arranged sequentially in the longitudinal direction of the substrate 31. Of course, there is a gap between the first heating element 32 and the second heating element 33. 【0070】 Furthermore, as shown in Figures 2 to 4, the first heating element 32 is positioned near the first end 311, and the second heating element 33 is positioned near the second end 312. Also, on the surface of the substrate 31, An exposed segment 313 located between the first end 311 and the first heating element 32, An exposed segment 314 is located between the first heating element 32 and the second heating element 33, separating the first heating element 32 and the second heating element 33. An exposed segment 315 located between the second heating element 33 and the second end 312 is further defined. 【0071】 Furthermore, in some embodiments, the exposed segment 313 and the exposed segment 314 have essentially the same dimensions in the axial direction of the base 31. For example, in some specific embodiments, the exposed segment 313 and the exposed segment 314 have a length of approximately 0.5 to 3 mm. 【0072】 Furthermore, in some embodiments, the axial length of the base 31 of the exposed segment 315 is greater than the length of the exposed segment 313 and / or exposed segment 314. For example, in some specific embodiments, the axial length of the base 31 of the exposed segment 315 is 3 to 5 mm. 【0073】 Furthermore, as shown in Figures 2 to 4, the heater 30 further includes a first electrode 341. The first electrode 341 is an elongated or longitudinally elongated electrode coating that extends from the end near the first end 311 of the first heating element 32 to the exposed segment 315, so that a portion of the first electrode 341 is conductively connected to the first heating element 32 and the other portion of the first electrode 341 is conductively connected to the second heating element 33. Alternatively, the first electrode 341 extends from the first heating element 32 to the second heating element 33, or the extended length of the first electrode 341 straddles, or essentially straddles, the first heating element 32 and the second heating element 33. Alternatively, the length of the first electrode 341 is essentially equal to the sum of the lengths of the first heating element 32, the exposed segment 314 and the second heating element 33. 【0074】 To facilitate connection of the first electrode 341 to the circuit board 140 via a conductive element or welded conductive lead wire, a circumferentially extending portion 3411 is provided at the end of the first electrode 341 located within the exposed segment 315, thereby giving the first electrode 341 a T-shape, which is advantageous for connecting to a conductive element or for forming conductivity by welding a conductive lead wire. The applicant provides details of the T-shape of the first electrode 341 and the formation of conductivity by assembly and fixing with a conductive element in Chinese Patent Application Publication No. CN215958354U, the full text of which is incorporated herein by reference. 【0075】 Furthermore, the heater 30 further includes a third electrode 342. The third electrode 342 is an electrode coating that extends longitudinally on the heater 30, extending from the end near the first end 311 of the second heating element 33 to the exposed segment 315, straddling the second heating element 33, and being electrically connected to the second heating element 33. The third electrode 342 is also positioned opposite to the first electrode 341 in the radial direction of the substrate 31 or heater 30. The end of the third electrode 342 located at the exposed segment 315 has a circumferentially extending portion 3421, which gives the third electrode 342 a T-shape, making it easy to connect the third electrode 342 to a conductive element, or to weld conductive lead wires to create conductivity and then connect it to the circuit board 140. 【0076】 Furthermore, the heater 30 further includes a second electrode 343. The second electrode 343 is an electrode coating extending in the longitudinal direction of the heater 30, positioned opposite the first electrode 341 in the radial direction of the substrate 31 or heater 30, and basically facing the fourth electrode 351 in the longitudinal direction of the substrate 31 or heater 30. The length of the second electrode 343 in the axial direction of the heater 30 covers only the first heating element 32, and is electrically connected to the first heating element 32. 【0077】 Alternatively, in some other modified embodiments, the first electrode 341, the third electrode 342, and the second electrode 343 can be replaced with thin sheet electrodes formed on the heater 30 by welding or adhesion, and the electrode material is gold, silver, copper, or an alloy thereof with low resistivity. 【0078】 Furthermore, as shown in Figures 2 to 4, the heater 30 further includes a fourth electrode 351, a fourth electrode 352, a fourth electrode 353, and a fourth electrode 354. These four electrodes are electrode coatings coupled to the first heating element 32 and are arranged sequentially at intervals surrounding the circumferential direction of the heater 30 and / or the first heating element 32. Specifically, with the boundary defined by the interface between the first electrode 341 and the central axis of the heater 30 as the boundary, the first heating element 32 has a first side and a second side separated by the interface. The fourth electrode 351 and the fourth electrode 352 are located on the first side and are spaced apart between the first electrode 341 and the second electrode 343, while the fourth electrode 353 and the fourth electrode 354 are located on the second side and are spaced apart between the first electrode 341 and the second electrode 343. 【0079】 Furthermore, as shown in Figures 2 to 4, the heater 30 further includes a fifth electrode 361, a fifth electrode 362, a fifth electrode 363, and a fifth electrode 364. These four electrodes are electrode coatings coupled to the second heating element 33 and are arranged sequentially at intervals surrounding the circumferential direction of the heater 30 and / or the second heating element 33. Specifically, with respect to the boundary defined by the interface between the first electrode 341 and the central axis of the heater 30, the second heating element 33 has a first side and a second side separated by the interface. The fifth electrodes 361 and 362 are located on the first side and are spaced apart between the first electrode 341 and the third electrode 342, while the fifth electrodes 363 and 364 are located on the second side and are spaced apart between the first electrode 341 and the third electrode 342. 【0080】 In this embodiment, the fourth electrodes 351, 352, 353, 354, and the fifth electrodes 361, 362, 363, and 364 are not directly connected to the circuit board 140 and are not used as voltage inputs to the circuit board 140. In other words, the fourth electrodes 351, 352, 353, 354, and the fifth electrodes 361, 362, 363, and 364 are used as idle electrodes. 【0081】 By arranging empty electrodes, multiple series connection regions are defined in the first heating element 32 and / or the second heating element 33, spaced apart in the circumferential direction. For example, as shown in Figures 6 and 7, the first heating element 32 is... A region S21 defined between the first electrode 341 and the fourth electrode 351, A region S22 is defined between the fourth electrode 351 and the fourth electrode 352 and is connected in series to region S21 via the fourth electrode 351, A region S23 is defined between the fourth electrode 352 and the second electrode 343 and is connected in series to region S22 via the fourth electrode 352, A region S24 defined between the second electrode 343 and the fourth electrode 353, A region S25 is defined between the fourth electrode 353 and the fourth electrode 354 and is connected in series to region S24 via the fourth electrode 353, The region is partitioned to include a region S26 that is defined between the fourth electrode 354 and the first electrode 341 and connected in series to region S25 via the fourth electrode 354. 【0082】 Similarly, the second heating element 33 is A region S31 defined between the first electrode 341 and the fifth electrode 361, A region S32 is defined between the fifth electrode 361 and the fifth electrode 362 and is connected in series to region S31 via the fifth electrode 361, A region S33 is defined between the fifth electrode 362 and the third electrode 342 and is connected in series to region S32 via the fifth electrode 362, A region S34 defined between the third electrode 342 and the fifth electrode 363, A region S35 is defined between the fifth electrode 363 and the fifth electrode 364 and is connected in series to region S34 via the fifth electrode 363, The region is partitioned to include a region S36 defined between the fifth electrode 364 and the first electrode 341, and connected in series to region S35 via the fifth electrode 364. 【0083】 During use, any two or three of the first electrode 341, third electrode 342, and second electrode 343 can be selectively connected to the circuit board 140, thereby selectively supplying current to the first heating element 32 and / or second heating element 33 of the heater 30. Specifically, for example, by selectively connecting the first electrode 341, third electrode 342, and second electrode 343 to the circuit board 140 using a switch transistor such as a MOS transistor that can switch between on and off states, the segment of the aerosol generating product 1000 heated by the heater 30 can be changed. For example, by activating and heating either the first heating element 32 or the second heating element 33 independently, while not activating and heating the other, it is possible to heat a portion of the aerosol generating product 1000 independently. Furthermore, by connecting the first heating element 32 and the second heating element 33 to the circuit board 140 in different series or parallel connections, the first heating element 32 and the second heating element 33 can simultaneously heat different segments of the aerosol generating product 1000 to different temperatures with different powers, thereby creating different temperatures in the segments of the aerosol generating product 1000 surrounded by the first heating element 32 and the second heating element 33, and thus creating different aerosol generation efficiencies. 【0084】 Specifically, for example, Figure 5 shows a schematic diagram of a case in which, in one embodiment, the first electrode 341 and the second electrode 343 are connected to the circuit board 140, and then the first electrode 341 and the second electrode 343 are connected correspondingly to the positive and negative electrodes of the battery cell 130 to form a circuit and allow current to flow through the first heating element 32. As shown in Figure 5, in the connection configuration that forms a closed circuit using the method in Figure 5, a circumferential operating current is formed only in the first heating element 32, and no current flows through the second heating element 33. Here, the current in the first heating element 32 is divided into two paths: one current i11 flows from the second electrode 343 through regions S23, S22, and S21 in series to the first electrode 341, and the other current i12 flows from the second electrode 343 through regions S24, S25, and S26 in series to the first electrode 341. In terms of connection configuration, regions S23, S22, and S21, which are connected in series, are connected in parallel to regions S24, S25, and S26, which are also connected in series. 【0085】 In a similar configuration, the first electrode 341 and the third electrode 342 are connected to the circuit board 140, and then the first electrode 341 and the third electrode 342 are connected to the positive and negative electrodes of the battery cell 130, respectively, to form a circuit and allow current to flow through the second heating element 33. Similarly, the second heating element 33 will generate an operating current similar to that of the first heating element 32 in Figure 5. 【0086】 Furthermore, Figure 6 shows a schematic diagram of another embodiment in which the third electrode 342 and the second electrode 343 are connected to the circuit board 140, respectively, to simultaneously supply current to the first heating element 32 and the second heating element 33. As shown in Figure 6, currents i11a and i12a are formed in the first heating element 32 through two paths from the second electrode 343 to the first electrode 341, and currents i21a and i22a are formed in the second heating element 33 through two paths from the first electrode 341 to the third electrode 342. 【0087】 Furthermore, in the connection configuration shown in Figure 6, currents i21a and i22a are connected in parallel, and currents i11a and i12a are connected in parallel. Simultaneously, the first heating element 32 and the second heating element 33 are connected in series via the first electrode 341 and operate simultaneously. 【0088】 Furthermore, Figure 7 shows the electrical connection configuration of another embodiment, where the first electrode 341 is connected to the positive electrode of the battery cell 130, and the third electrode 342 and the second electrode 343 are simultaneously connected to the negative electrode of the battery cell 130 via ground. In this embodiment shown in Figure 7, the first heating element 32 and the second heating element 33 operate simultaneously by being connected in parallel. 【0089】 As is clear, the series connection resistance of the first heating element 32 and the second heating element 33 shown in Figure 6 is generally greater than the parallel connection resistance of the first heating element 32 and the second heating element 33 in Figure 7. Therefore, when power is supplied by the battery cell 130, the power of simultaneous heating of the first heating element 32 and the second heating element 33 operating simultaneously in the connection configuration of Figure 7 is greater than the power of simultaneous heating in Figure 6. Also, as is clear, the connection configuration of Figure 7 allows for relatively rapid heating of different segments of the aerosol generating product 1000. 【0090】 Furthermore, as shown in Figures 2 to 6, the first electrode 341, third electrode 342, and third electrode 342 for connection to the circuit board 140 have a width W1 in the circumferential direction of the heater 30, and the fifth electrode 361, fifth electrode 362, fifth electrode 363, and fifth electrode 364, which are empty electrodes in the second heating element 33, have a width W2 in the circumferential direction of the heater 30, and the fourth electrode 351, fourth electrode 352, fourth electrode 353, and fourth electrode 354, which are empty electrodes in the first heating element 32, have a width W3 in the circumferential direction of the heater 30. Also, in the embodiment, width W1 is greater than width W2, and width W2 is greater than width W3. For example, in one specific embodiment, the base body 31 has an outer diameter of approximately 7.4 to 12.6 mm, and the diameters of the first heating element 32 and the second heating element 33 are 7.4 to 12.6 mm. The width W1 is approximately 2-5 mm, the width W2 is approximately 1-4 mm, and the width W3 is approximately 0.5-3 mm. 【0091】 Since the width W2 is greater than the width W3, the second heating element 33 has a larger covering width than the empty electrode, and therefore its resistance is smaller than that of the first heating element 32. As a result, when the first heating element 32 or the second heating element 33 is started and heated independently, as shown in Figure 5, or when the first heating element 32 and the second heating element 33 are connected in parallel and heated simultaneously, as shown in Figure 7, the operating power of the second heating element 33 is greater than that of the first heating element 32. Furthermore, when the first heating element 32 and the second heating element 33 are connected in series and heated simultaneously, as shown in Figure 6, the first heating element 32 has a larger resistance and therefore has a higher operating power than the second heating element 33. 【0092】 Alternatively, in more modified embodiments, the first heating element 32 and / or the second heating element 33 have more empty electrodes. Alternatively, by making the number of empty electrodes in the first heating element 32 different from the number of empty electrodes in the second heating element 33, the first heating element 32 and the second heating element 33 can be given different resistance values. For example, by making the number of empty electrodes in the first heating element 32 greater than the number of empty electrodes in the second heating element 33, the resistance value of the first heating element 32 can be made greater than the resistance value of the second heating element 33. 【0093】 Alternatively, in some other modified embodiments, the heater 30 is The system further includes an insulating element that surrounds or encloses the first heating element 32 and / or the second heating element 33 on the outside, thereby insulating the outside of them. Examples of insulating elements include wrapped aerogel felt, porous material, or vacuum tubes. 【0094】 Alternatively, in some other modified embodiments, the insulating element of the heater 30 is a tube having an internal insulating cavity, and when the insulating cavity is between the inner and outer surfaces of the tubular insulating element, the pressure in the insulating cavity is lower than the external pressure, i.e., the insulating element is a vacuum-insulated tube with a degree of vacuum. Alternatively, in some other modified embodiments, the insulating cavity is 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 under equivalent pressure and temperature, the thermal conductivity of argon gas is about 1 / 3 less than that of air, thus providing effective insulation. 【0095】 Alternatively, in some other modified embodiments, the heater 30 is The system further includes a first temperature sensor that detects the temperature of the first heating element 32 by being attached to the first heating element 32, and a second temperature sensor that detects the temperature of the second heating element 33 by being attached to the second heating element 33. 【0096】 Alternatively, in some other modified embodiments, the heater 30 is The heater 30 further includes a thermoplastic adhesion member that surrounds the first temperature sensor and / or the second temperature sensor outside the heater 30 and brings the first temperature sensor and / or the second temperature sensor into close contact with the outside of the heating layer. 【0097】 In some embodiments, the thermoplastic adhesive member comprises at least one of a heat-resistant synthetic resin, polytetrafluoroethylene (Teflon®), and silicon, and in some other modified embodiments, the thermoplastic adhesive member comprises a heat-shrinkable tube or a heat-resistant tape. 【0098】 Furthermore, for example, Figures 8 and 9 show schematic diagrams of heater 30a of another embodiment, and the heater 30a of this embodiment is, A base 31a having opposite first end 311a and second end 312a, The heating element includes a first heating element 32a and a second heating element 33a arranged at intervals on the substrate 31a in the vertical direction, wherein the first heating element 32a and / or the second heating element 33a may be an infrared heating layer that heats by emitting infrared rays, or a resistance heating layer that generates heat by resistance Joule heating. Here, the first heating element 32a is close to the first end 311a, and the second heating element 33a is close to the second end 312a. 【0099】 Also, heater 30a is, The circuit board 140 further includes a first electrode 341a, a third electrode 342a, and a second electrode 343a that can be selectively connected to the circuit board 140. The third electrode 342a is coupled to the second heating element 33a to become conductive, the second electrode 343a is coupled to the first heating element 32a to become conductive, the first electrode 341a extends from the first heating element 32a to the second heating element 33a, and the first electrode 341a conducts simultaneously with the first heating element 32a and the second heating element 33a. In addition, the third electrode 342a and the second electrode 343a are aligned in the longitudinal direction, the first electrode 341a and the third electrode 342a are opposite in the radial direction, and the first electrode 341a and the second electrode 343a are opposite in the radial direction. 【0100】 Furthermore, the first heating element 32a of the heater 30a is The fourth electrodes 351a, 352a, 353a, and 354a are arranged sequentially at intervals around the circumferential direction of the first heating element 32a. The first heating element 32a has a first side and a second side separated by the connection surface of the first electrode 341a and the second electrode 343a. The fourth electrodes 351a and 352a are located on the first side and are spaced apart from the first electrode 341a and the second electrode 343a. The fourth electrodes 353a and 354a are located on the second side and are spaced apart from the first electrode 341a and the second electrode 343a. Furthermore, in this embodiment, the fourth electrodes 351a, 352a, 353a, and 354a are not connected to the circuit board 140 and are not used as voltage inputs to the circuit board 140. Instead, they are used as idle electrodes, solely for reducing the resistance of the first heating element 32a and for forming a partition region connected in series within the first heating element 32a. 【0101】 Furthermore, in the heater 30a of this embodiment, there are no empty electrodes on the second heating element 33a. Moreover, in the embodiment, when the resistance value of the first heating element 32a is smaller than the resistance of the second heating element 33a, and the first heating element 32a and the second heating element 33a are heated simultaneously by the electrical connection shown in Figure 6 or Figure 7, the first heating element 32a can be selectively heated with higher and lower power than the second heating element 33a. 【0102】 Furthermore, during use, power can be supplied to the heater 30a using one of the methods shown in Figures 5 to 7, causing only one of the first heating element 32a and the second heating element 33a to be heated, or both to be heated simultaneously. 【0103】 For example, in one specific embodiment, the heating process of the aerosol generating product 1000 includes the following first step S10 and second step S20. In the first stage S10, the first electrode 341a and the second electrode 343a are connected to the positive and negative terminals of the battery cell 130, respectively, by means shown in Figure 5. At this stage, current is passed only to the first heating element 32a to heat the first segment of the aerosol generating product 1000 surrounded by the first heating element 32a. In the second stage S20, the third electrode 342a and the second electrode 343a are connected to the positive and negative terminals of the battery cell 130 by the electrical connection shown in Figure 6, and the first heating element 32a and the second heating element 33a are connected in series and heated simultaneously, and the relationship between power, voltage and resistance P=I 2 As can be seen from ×R, in the second stage, the first heating element 32a is heated with lower power than the second heating element 33a by the empty electrodes 351 / 352 / 353 / 354 in the first heating element 32a. 【0104】 In this method, during the preheating stage, for example in the first stage S10, the first segment surrounded by the first heating element 32a of the aerosol generating product 1000 is quickly heated first. Then, in the second stage S20, the first segment surrounded by the first heating element 32a and the second segment surrounded by the second heating element 33a of the aerosol generating product 1000 are heated simultaneously, and the temperature of the second segment surrounded by the second heating element 33a is gradually raised to be close to the temperature of the first segment surrounded by the first heating element 32a. This reduces the temperature difference caused by heating only the first segment in the first stage S10. Specifically, for example, in the first stage S10, the first heating element 32a is heated to a higher temperature than the second heating element 33a, and in the first stage S10, the temperature of the first heating element 32a is higher than the temperature of the second heating element 33a, resulting in a first temperature difference, and this first temperature difference is not constant or can change, for example, it gradually increases. Furthermore, in the second stage S20, by reducing the first temperature difference caused by heating the first heating element 32a to a higher temperature in the first stage S10, the temperature of the second heating element 33a is raised more rapidly and gradually in the second stage S20 so that it approaches the temperature of the first heating element 32a, and the temperature difference between them is gradually reduced in the second stage S20, that is, in the second stage S20, the temperature of the first heating element 32a is higher than the temperature of the second heating element 33a, resulting in a second temperature difference, and this second temperature difference can also change, for example, it gradually decreases. Furthermore, the first temperature difference is greater than the second temperature difference; for example, in some embodiments, the first temperature difference is at least 100°C, and the second temperature difference is less than 50°C. 【0105】 Alternatively, in some other embodiments, in the first stage, the first heating element 32 and the second heating element 33 are controlled to be connected in parallel to the battery cell 130, thereby heating them in parallel and simultaneously, and in the second stage, the first heating element 32 and the second heating element 33 are controlled to be connected in series to the battery cell 130, thereby heating them in series and simultaneously. 【0106】 Alternatively, in another modified embodiment, the heating process of the aerosol generating product 1000 includes the following first step S10a and second step S20a. In the first stage S10a, the first electrode 341a and the second electrode 343a are connected to the positive and negative terminals of the battery cell 130, respectively, by means shown in Figure 5. At this stage, current is passed only to the first heating element 32a to heat the first segment of the aerosol generating product 1000 surrounded by the first heating element 32a. In the second stage S20a, the first electrode 341a, the third electrode 342a, and the second electrode 343a are connected to the positive and negative electrodes of the battery cell 130 by the electrical connections shown in Figure 7, and the first heating element 32a and the second heating element 33a are connected in parallel and heated simultaneously. In this second stage, the first heating element 32a is heated with a higher power than the second heating element 33a. 【0107】 In this method, during the preheating stage, for example in the first stage S10a, the first segment surrounded by the first heating element 32a of the aerosol generating product 1000 is quickly heated first, and then in the second stage S20, the first segment surrounded by the first heating element 32a and the second segment surrounded by the second heating element 33a of the aerosol generating product 1000 are heated simultaneously, and the temperature of the first segment surrounded by the first heating element 32a of the aerosol generating product 1000 is gradually increased to a greater temperature difference than that of the second segment surrounded by the second heating element 33a. 【0108】 Furthermore, for example, in one embodiment, the first and second segments of the aerosol generating product 1000 are simultaneously heated by the first heating element 32a and the second heating element 33a using the electrical connection shown in Figure 7. During heating, the first and second segments of the aerosol generating product 1000 always have different temperatures. Specifically, the temperature curve of this embodiment during the heating process using the electrical connection shown in Figure 7 includes the following, as shown in Figure 10. During the period from 0 to t1, the first heating element 32a is controlled to rapidly raise the temperature to the target temperature T1 for preheating. However, during this first period, the heating of the second segment of the aerosol generating product 1000 is slower than that of the first segment, and it is similarly unable to rapidly raise the temperature to T1. During the period t1-t2, the heating temperature of the first heating element 32a is controlled to be maintained at the target temperature T1, thereby heating the first segment of the enclosed aerosol-generating product 1000 and generating an aerosol. During the second period, the heating temperature of the second heating element 33a gradually increases, but its temperature remains lower than that of the first heating element 32a. During the period t2-t4, the first heating element 32a is brought to a higher temperature T2 earlier than t4 or earlier at t3 and maintained thereafter. Of course, during this third period, the temperature rise of the second heating element 33a is still lower than the temperature T2 of the first heating element 32a. During the period t4-t5, the heating temperature of the first heating element 32a is controlled to be maintained at the target temperature T2 until the suction is completed. 【0109】 In some specific implementations, the first heating element 32a has a target temperature of temperature T1 during periods 0-t1 and t1-t2, and temperature T1 can be set to 200-450°C. 【0110】 Furthermore, in the implementation shown in Figure 9, the target temperature of the second heating element 33a during the t2-t4 period and the t4-t5 period can be similarly set to temperature T1, which is the same as the target temperature of the first heating element 32a during the 0-t1 period and the t1-t2 period. 【0111】 Alternatively, in some other modified implementations, the target temperature of the second heating element 33a during the t2-t4 period and the t4-t5 period may be higher or lower than the target temperature of the first heating element 32a during the 0-t1 period and the t1-t2 period. 【0112】 Furthermore, in some specific implementations, the rapid heating and preheating time during the 0-t1 period may be set to approximately 5-20 seconds, the suction time during the t1-t2 period to approximately 40-80 seconds, the time during the t2-t4 period to approximately 5-20 seconds, and the suction time during the t4-t5 period to approximately 40-100 seconds. 【0113】 Furthermore, in the above implementation, the first heating element 32a rapidly heats the segments of the aerosol-generating product 1000 surrounded by it during periods 0-t1 and t1-t2 to rapidly generate aerosols, and the entire product is heated during periods t2-t4 and t4-t5. 【0114】 Alternatively, in some other implementations, the length of the t4-t5 period may be greater than the length of the t1-t2 period to compensate for the heating of the segment of the aerosol-generating product 1000 surrounded by the second heating element 33a. 【0115】 Furthermore, in the above implementation, the heating temperature of the first heating element 32a and / or the second heating element 33a does not decrease. For example, the temperature of the first heating element 32a and / or the second heating element 33a increases in stages. 【0116】 It should be noted that while the specification and drawings of this application illustrate preferred embodiments of this application, they are not limited to the embodiments described herein. Furthermore, those skilled in the art may make improvements and modifications based on the above description, all of which shall fall within the scope of protection of the claims attached to this application.

Claims

[Claim 1] An aerosol generating device arranged to generate aerosols by heating an aerosol generating product, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. The first heating element and the second heating element include a battery cell for supplying power to the first heating element, An aerosol generator characterized in that it can selectively electrically connect one of the first heating element and the second heating element to the battery cell on its own to heat it independently, and can also selectively electrically connect the first heating element and the second heating element to the battery cell in series or parallel to heat them simultaneously. [Claim 2] The device includes an opening for receiving at least partially the aerosol-generating product into the cavity during use, or for removing it from the cavity. The aerosol generating apparatus according to claim 1, characterized in that the first heating element is closer to the opening than the second heating element. [Claim 3] The substrate includes at least partially enclosing or defining the cavity, The first heating element includes a coating or film or heating mesh bonded to the substrate, and / or, the aerosol generating apparatus according to claim 1 or 2, characterized in that the second heating element includes a coating or film or heating mesh bonded to the substrate. [Claim 4] The first heating element includes at least one of an infrared heating element or a resistance heating element, The aerosol generator according to claim 1 or 2, characterized in that the second heating element includes at least one of an infrared heating element or a resistance heating element. [Claim 5] The aerosol generator according to claim 1 or 2, characterized in that when the first heating element and the second heating element are electrically connected to the battery cell by series connection and heated simultaneously, the operating power of the first heating element is smaller than the operating power of the second heating element. [Claim 6] The aerosol generator according to claim 1 or 2, characterized in that when the first heating element and the second heating element are electrically connected to the battery cell by parallel connection and heated simultaneously, the power of the first heating element is greater than the power of the second heating element. [Claim 7] During the first period, the first heating element is electrically connected to the battery cell on its own, and the first heating element is heated on its own. The aerosol generating device according to claim 1 or 2, characterized in that, during the second period, the first heating element and the second heating element are electrically connected in series to the battery cell, and are arranged so that the first heating element and the second heating element are heated simultaneously. [Claim 8] During the first period, the first heating element is electrically connected to the battery cell on its own, and the first heating element is heated on its own. The aerosol generating apparatus according to claim 1 or 2, characterized in that, during the second period, the first heating element and the second heating element are electrically connected to the battery cell in parallel, and are arranged so that the first heating element and the second heating element are heated simultaneously. [Claim 9] By controlling the power supplied to the first heating element and the second heating element by the battery cell, the temperature of the first heating element is made higher than that of the second heating element during the first period so as to have a first temperature difference, and the temperature of the first heating element is made higher than that of the second heating element during the second period so as to have a second temperature difference. The aerosol generating apparatus according to claim 1 or 2, characterized in that the first temperature difference is greater than the second temperature difference. [Claim 10] It further includes a first electrode, a second electrode, and a third electrode that are selectively electrically connected to the battery cell, The aerosol generating apparatus according to claim 1 or 2, characterized in that the first heating element is at least partially electrically connected between the first electrode and the second electrode, and the second heating element is at least partially electrically connected between the first electrode and the third electrode. [Claim 11] The aerosol generator according to claim 10, characterized in that two or three of the first electrode, second electrode, and third electrode are selectively electrically connected to the battery cell, thereby arranging one or two of the first heating element and second heating element to be electrically connected to the battery cell. [Claim 12] The first electrode extends at least a portion from the first heating element to the second heating element and is arranged to conduct electricity simultaneously with the first heating element and the second heating element. The second electrode is positioned on the first heating element, avoiding the second heating element, and is electrically connected to the first heating element. The aerosol generating apparatus according to claim 11, characterized in that the third electrode is arranged on the second heating element, avoids the first heating element, and is electrically connected to the second heating element. [Claim 13] The aerosol generating device according to claim 10, further comprising one or more fourth electrodes arranged at intervals in the circumferential direction with respect to the first heating element, reducing the resistance of the first heating element, and not electrically connected to the battery cell. [Claim 14] The aerosol generator according to claim 13, further comprising one or more fourth electrodes that partition the first heating element, arranged at intervals in the circumferential direction on the first heating element, so as to define at least two heating regions connected in series between the first electrode and the second electrode. [Claim 15] The aerosol generator according to claim 13, characterized in that the circumferential width of the cavity of the fourth electrode is smaller than the circumferential width of the cavity of the first electrode and / or the second electrode and / or the third electrode. [Claim 16] The aerosol generator according to claim 15, characterized in that the width of the cavity of the fourth electrode in the circumferential direction is 0.5 to 3 mm. [Claim 17] The aerosol generator according to claim 15, characterized in that the width in the circumferential direction of the cavity of the first electrode and / or the second electrode and / or the third electrode is 2 to 5 mm. [Claim 18] The aerosol generator according to claim 13, further comprising one or more fifth electrodes arranged at intervals in the circumferential direction on the second heating element, which reduce the resistance of the second heating element and are not electrically connected to the battery cell. [Claim 19] The number of the fifth electrodes differs from the number of the fourth electrodes. The aerosol generator according to claim 18, characterized in that and / or, the circumferential width of the cavity of the fourth electrode is different from the circumferential width of the cavity of the fifth electrode. [Claim 20] The aerosol generating apparatus according to claim 10, further comprising one or more fifth electrodes that partition the second heating element, arranged at intervals in the circumferential direction, so as to define at least two heating regions connected in series between the first electrode and the third electrode. [Claim 21] The aerosol generating apparatus according to claim 10, characterized in that the second electrode and the third electrode are positioned in the longitudinal direction of the cavity. [Claim 22] The first electrode and the second electrode are arranged opposite each other in the radial direction of the cavity. The aerosol generator according to claim 10, characterized in that the first electrode and the third electrode are arranged opposite each other in the radial direction of the cavity. [Claim 23] The aerosol generating device according to claim 1 or 2, characterized in that it includes only two heating elements. [Claim 24] A first temperature sensor for detecting the temperature of the first heating element, The aerosol generator according to claim 1 or 2, further comprising and / or a second temperature sensor for detecting the temperature of the second heating element. [Claim 25] During the first period, the first heating element and the second heating element are electrically connected to the battery cell in parallel, and the first heating element and the second heating element are heated simultaneously. The aerosol generating device according to claim 1 or 2, characterized in that, during the second period, the first heating element and the second heating element are electrically connected in series to the battery cell, and are arranged so that the first heating element and the second heating element are heated simultaneously. [Claim 26] An aerosol generating device arranged to generate aerosols by heating an aerosol generating product, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. A battery cell for supplying power to the first heating element and the second heating element, An aerosol generator comprising a circuit arranged to heat the first heating element alone by controlling the battery cell to supply power to the first heating element alone during a first period, and to heat the first heating element and the second heating element simultaneously by controlling the battery cell to supply power to both the first heating element and the second heating element simultaneously during a second period. [Claim 27] The aerosol generator according to claim 26, characterized in that the first heating element and the second heating element are connected in series during the second period. [Claim 28] The aerosol generator according to claim 26, characterized in that during the second period, the operating power of the first heating element is less than the operating power of the second heating element. [Claim 29] An aerosol generating device arranged to generate aerosols by heating an aerosol generating product, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. A battery cell for supplying power to the first heating element and the second heating element, The system includes a circuit that controls the power supplied to the first heating element and the second heating element by the battery cell, thereby causing the temperature of the first heating element to be higher than that of the second heating element during a first period so as to have a first temperature difference, and causing the temperature of the first heating element to be higher than that of the second heating element during a second period so as to have a second temperature difference. An aerosol generator characterized in that the first temperature difference is greater than the second temperature difference. [Claim 30] An aerosol generating device arranged to generate aerosols by heating an aerosol generating product, A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. A battery cell for supplying power to the first heating element and the second heating element, It includes a first electrode, a second electrode, and a third electrode that are selectively electrically connected to the battery cell, An aerosol generator characterized in that the first heating element is at least partially electrically connected between the first electrode and the second electrode, and the second heating element is at least partially electrically connected between the first electrode and the third electrode. [Claim 31] The aerosol generating device according to claim 30, further comprising one or more fourth electrodes that are not electrically connected to the battery cell, wherein the first heating element is partitioned so as to define at least two heating regions connected in series between the first electrode and the second electrode, by being spaced apart in the circumferential direction of the first heating element. [Claim 32] The aerosol generating device according to claim 31, further comprising one or more fifth electrodes that are not electrically connected to the battery cell, wherein the second heating element is partitioned so as to define at least two heating regions that are connected in series between the first electrode and the third electrode, by being spaced apart in the circumferential direction of the second heating element. [Claim 33] The number of the fifth electrodes differs from the number of the fourth electrodes. The aerosol generator according to claim 32, characterized in that and / or, the width in the circumferential direction of the cavity of the fourth electrode is different from the width in the circumferential direction of the cavity of the fifth electrode. [Claim 34] A first heating element and a second heating element are arranged in order in the vertical direction, Including a first electrode, a second electrode, and a third electrode, A heater for an aerosol generator, characterized in that the first heating element is at least partially electrically connected between the first electrode and the second electrode and supplies power to the first heating element via the first electrode and the second electrode, and the second heating element is at least partially electrically connected between the first electrode and the third electrode and supplies power to the second heating element via the first electrode and the third electrode. [Claim 35] The heater for an aerosol generator according to claim 34, further comprising one or more fourth electrodes that do not supply power to the first heating element, which are arranged at intervals in the circumferential direction on the first heating element, thereby partitioning the first heating element and defining at least two heating regions connected in series between the first electrode and the second electrode. [Claim 36] A heater for an aerosol generator according to claim 34 or 35, further comprising one or more fifth electrodes that do not supply power to the second heating element, which are spaced apart in the circumferential direction of the second heating element so as to define at least two heating regions connected in series between the first electrode and the third electrode. [Claim 37] A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. A control method for an aerosol generator including the first heating element and a battery cell for supplying power to the second heating element, A control method for an aerosol generator, characterized by comprising: controlling the battery cell to supply power to the first heating element alone during a first period, thereby heating the first heating element alone; and controlling the battery cell to supply power to the first heating element and the second heating element simultaneously during a second period, thereby heating the first heating element and the second heating element simultaneously. [Claim 38] A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. A control method for an aerosol generator including the first heating element and a battery cell for supplying power to the second heating element, During the first period, the first heating element and the second heating element are electrically connected to the battery cell in parallel, and the first heating element and the second heating element are heated simultaneously. A control method for an aerosol generator, characterized by comprising: in a second period, electrically connecting the first heating element and the second heating element in series to the battery cell, and simultaneously heating the first heating element and the second heating element. [Claim 39] A cavity for receiving aerosol-generating products, The cavity is arranged in the vertical direction and comprises a first heating element and a second heating element for heating the aerosol generating product. A control method for an aerosol generator including the first heating element and a battery cell for supplying power to the second heating element, This includes controlling the power supplied to the first heating element and the second heating element by the battery cell so that, during the first period, the temperature of the first heating element is higher than the temperature of the second heating element so that there is a first temperature difference, and during the second period, the temperature of the first heating element is higher than the temperature of the second heating element so that there is a second temperature difference. A control method for an aerosol generator, characterized in that the first temperature difference is greater than the second temperature difference.

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