Aerosol generator and heater for aerosol generator

Abstract

The invention relates to an aerosol generator (100) and a heater (30) for the aerosol generator (100). The aerosol generator (100) includes a heating element (32) comprising a first heating portion (321) and a second heating portion (322) spaced apart in the vertical direction, a battery cell (130) for supplying power, a circuit for performing simultaneous heating by connecting the first heating portion (321) and the second heating portion (322) to the battery cell (130) in series or parallel, and a temperature sensor coupled to the first heating portion (321). The circuit is further configured to maintain the first heating portion (321) at a first target temperature and the second heating portion (322) at a second target temperature by controlling the power supplied to the first heating portion (321) and the second heating portion (322) based on the temperature of the first heating portion (321) detected by the temperature sensor. The aerosol generator (100) described above selectively heats the first heating portion (321) and the second heating portion (322) of the heating element (32) simultaneously by connecting them in series or in parallel, and based on their power relationship, the temperatures of the first heating portion (321) and the second heating portion (322) can be controlled using only a temperature sensor coupled to the first heating portion (321).

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on March 24, 2023, with the application number 202310331626.X and the title "Aerosol Generator and Heater for Aerosol Generator", and all of its content is incorporated herein by reference.

[0002] The embodiments of this application relate to the technical field of non - combustion heating type aerosol generation, and particularly to an aerosol generator and a heater for an aerosol generator.

Background Art

[0003] Tobacco products (such as cigarettes, cigars, etc.) generate tobacco smoke by burning tobacco during use. Instead of 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 including tobacco or other non - tobacco products, and these non - tobacco products may or may not contain nicotine. Existing heating devices differentially heat different parts of the aerosol - generating product to different temperatures simultaneously, and independently heat different parts of the aerosol - generating product by a plurality of independent heating elements, and the plurality of independent heating elements independently perform heating with power supply.

Summary of the Invention

[0005] One embodiment of this application provides an aerosol generator configured to heat an aerosol - generating product to generate an aerosol, and the aerosol generator includes a heating element for heating an aerosol - generating product, the heating element including a first heating portion and a second heating portion arranged at intervals in the longitudinal direction Battery cells to supply power, A circuit configured to enable simultaneous heating of the first and second heating portions in series or parallel by selectively connecting them to the battery cell in series or parallel, The system includes a temperature sensor that is coupled to the first heating portion to detect the temperature of the first heating portion, The circuit is further configured to maintain the first heating portion at a first target temperature and the second heating portion at a second target temperature by controlling the power supplied to the first heating portion and the second heating portion based on the temperature of the first heating portion detected by the temperature sensor.

[0006] In some embodiments, the first electrode, second electrode, and third electrode are further included. The first heating portion is electrically connected between the first electrode and the second electrode, and the second heating portion is electrically connected between the first electrode and the third electrode. The circuit is configured to selectively connect the first heating portion and the second heating portion to the battery cell in series or parallel by connecting the first electrode, the second electrode, and the third electrode in different forms of electrical connection to the battery cell.

[0007] In several embodiments, the heating element is further A gap is defined between the first heating portion and the second heating portion in the vertical direction to prevent heat transfer between them.

[0008] In several embodiments, a gap is formed between the first heating portion and the second heating portion, so that the first heating portion and the second heating portion of the heating element are not arranged continuously but are spaced apart. Furthermore, the first heating portion and the second heating portion are not in contact.

[0009] In several embodiments, the heating element is provided with a plurality of holes such that a grid pattern is formed.

[0010] In several embodiments, the elongation size of the hole in the longitudinal direction of the heating element is larger than the elongation size in the circumferential direction of the heating element.

[0011] In some embodiments, the holes are The first hole located in the first heating portion, The second heating portion includes a second hole located in the second heating portion.

[0012] In several embodiments, the elongation size of the first hole in the longitudinal direction of the heating element is smaller than the elongation size of the second hole in the longitudinal direction of the heating element. and / or, the stretch size of the first hole in the circumferential direction of the heating element is smaller than the stretch size of the second hole in the circumferential direction of the heating element. And / or, in the longitudinal and / or circumferential directions of the heating element, the distance between adjacent first holes is greater than the distance between adjacent second holes.

[0013] In some embodiments, the first heating portion includes a plurality of first resistive conductor paths defined by the first hole and extending in a bypass manner between the first electrode and the second electrode in the circumferential direction of the heating element. and / or, the second heating portion includes a plurality of second resistive conductor paths defined by the second hole and extending in a bypass manner between the first electrode and the third electrode in the circumferential direction of the heating element.

[0014] In several embodiments, the path length of the first resistive conductor path is shorter than the path length of the second resistive conductor path, and / or the width of the first resistive conductor path is longer than the width of the second resistive conductor path.

[0015] In some embodiments, the heating element is It further includes a connection portion that extends from the first heating portion to the second heating portion and electrically connects the first heating portion and the second heating portion.

[0016] In a plurality of embodiments, the first heating portion, the second heating portion, and the connection portion are integrally formed.

[0017] In a plurality of embodiments, the first electrode is at least partially coupled to the connection portion.

[0018] In a plurality of embodiments, the heating element includes a first end and a second end that are opposite in the longitudinal direction, and a side opening is disposed in the heating element that extends from the first end to the second end so as not to be closed in the circumferential direction.

[0019] In a plurality of embodiments, the side opening has a first side and a second side that are opposite in the circumferential direction of the heating element, the first electrode is disposed on the first side, and the second electrode and the third electrode are disposed on the second side.

[0020] In a plurality of embodiments, a cavity for receiving an aerosol generating product, and an opening through which the aerosol generating product can be at least partially received into or removed from the cavity during use, are further included, the heating element is disposed so as to surround at least a part of the cavity, and the first heating portion is closer to the opening than the second heating portion.

[0021] In a plurality of embodiments, it further includes a substrate that surrounds or defines at least a part of the cavity, the heating element includes a coating or film or conductive track or heating mesh coupled to the substrate, and heat conduction between the heating element and the substrate is possible, whereby the substrate can receive the heat of the heating element and be used for heating the aerosol generating product.

[0022] In multiple embodiments, the circuit is arranged such that by selectively connecting one of the positive or negative electrodes of the battery cell to the second electrode and the other to the third electrode, the first heating portion and the second heating portion can be connected to the battery cell in series connection to perform simultaneous heating.

[0023] In multiple embodiments, the circuit is arranged such that by selectively connecting one of the positive or negative electrodes of the battery cell to the first electrode and the other to both the second electrode and the third electrode, the first heating portion and the second heating portion can be connected to the battery cell in parallel connection to perform simultaneous heating.

[0024] In multiple embodiments, when the first heating portion and the second heating portion are connected to the battery cell in parallel connection to perform simultaneous heating, the power of the first heating portion is greater than the power of the second heating portion.

[0025] In multiple embodiments, when the first heating portion and the second heating portion are connected to the battery cell in series connection to perform simultaneous heating, the power of the first heating portion is smaller than the power of the second heating portion.

[0026] In multiple embodiments, the circuit is configured to cause the first heating portion and the second heating portion to be heated simultaneously by connecting the first heating portion and the second heating portion to the battery cell in parallel connection during a first period, and to cause the first heating portion and the second heating portion to be heated simultaneously by connecting the first heating portion and the second heating portion to the battery cell in series connection during a second period.

[0027] In multiple embodiments, the circuit further The power supplied to the first and second heating elements by the battery cell is controlled so that, during the first period, the temperature of the first heating element is raised higher than the temperature of the second heating element to maintain a first temperature difference, and during the second period, the temperature of the first heating element is raised higher than the temperature of the second heating element to maintain a second temperature difference. The first temperature difference is greater than the second temperature difference.

[0028] In several embodiments, the circumferential stretch size of the heating element in the first heating portion is larger than the circumferential stretch size of the heating element in the second heating portion.

[0029] In some embodiments, the second electrode and the second heating portion are offset from each other in the longitudinal direction of the heating element.

[0030] In some embodiments, the heating element includes at least one of a resistance heating element or an infrared heating element.

[0031] Another embodiment of this application is an aerosol generator configured to generate an aerosol by heating an aerosol generating product, A heating element for heating an aerosol generating product, comprising a first heating portion and a second heating portion arranged spaced apart in the vertical direction, A first electrode, a second electrode, and a third electrode, wherein the first heating portion is electrically connected between the first electrode and the second electrode, and the second heating portion is electrically connected between the first electrode and the third electrode, Battery cells to supply power, It is a circuit, During the first period, the first heating portion and the second heating portion are connected in parallel to the battery cell by connecting one of the positive or negative electrodes of the battery cell to the first electrode and the other to both the second and third electrodes, thereby performing simultaneous heating. In the second period, we further propose an aerosol generator including a circuit configured to connect the first heating portion and the second heating portion to the battery cell in series and perform simultaneous heating by connecting one of the positive or negative electrodes of the battery cell to the second electrode and the other to the third electrode.

[0032] Another embodiment of this application is an aerosol generator configured to generate an aerosol by heating an aerosol generating product, A heating element for heating an aerosol generating product, comprising a first heating portion and a second heating portion arranged spaced apart in the vertical direction, Battery cells to supply power, It is a circuit, During the first period, the first heating portion and the second heating portion are connected in parallel to the battery cell, so that simultaneous heating is performed in a state where the power of the first heating portion is greater than the power of the second heating portion. In the second period, we further propose an aerosol generator that includes a circuit configured to perform simultaneous heating in a state where the power of the first heating portion is less than the power of the second heating portion, by connecting the first heating portion and the second heating portion in series to the battery cell.

[0033] Another embodiment of this application further proposes a heater for an aerosol generator, the heater for the aerosol generator, A tubular base body is arranged to extend along the length of the heater, The heating element is arranged to surround at least a portion of the substrate, and the heating element is A first heating portion and a second heating portion are arranged spaced apart in the vertical direction, A distance defined in the vertical direction between the first heating portion and the second heating portion, which prevents heat transfer between the first heating portion and the second heating portion, A first electrode, a second electrode, and a third electrode, wherein the first heating portion is electrically connected between the first electrode and the second electrode, and the second heating portion is electrically connected between the first electrode and the third electrode, The system includes a temperature sensor that is coupled to the first heating portion to detect the temperature of the first heating portion.

[0034] The above-described aerosol generator selectively heats two parts of a heating element simultaneously by connecting them in series or in parallel, and based on their power relationship, the temperatures of the two parts can be controlled using only a temperature sensor coupled to the first heating part. [Brief explanation of the drawing]

[0035] 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 numerals in the drawings represent similar elements, and unless otherwise specified, the figures in the drawings are not limited to a specific scale.

[0036] [Figure 1] This is a schematic diagram of an aerosol generator provided by one embodiment. [Figure 2] Figure 1 is a schematic diagram of the structure of one embodiment of the heater. [Figure 3] Figure 2 is a schematic diagram of the heater before assembly, showing the individual parts. [Figure 4] Figure 3 is a schematic diagram showing the heating element unfolded along the circumferential direction. [Figure 5] This is a schematic diagram illustrating how current is induced in a heating element in one embodiment. [Figure 6] This is a schematic diagram of how current is induced in a heating element in another embodiment. [Figure 7] This is a schematic diagram of how current is induced in a heating element in another embodiment. [Figure 8] This is a schematic diagram of how current is induced in a heating element in another embodiment. [Figure 9]This is a schematic diagram of the heating curve during the heating process of a heating element in one embodiment. [Figure 10] This is a schematic diagram of the heating curve during the heating process of a heating element in another embodiment. [Modes for carrying out the invention]

[0037] In the following, the technical solutions in the embodiments of this application will be clearly and completely described with reference to the drawings of the embodiments of this application. Naturally, the embodiments described are only a part of the embodiments of this application, not all of them. All other embodiments that a person skilled in the art could obtain based on the embodiments of this application without requiring any creative effort are all within the scope of protection of this application.

[0038] The terms “first,” “second,” and “third” in this application are for descriptive purposes only and should not be understood as indicating or implying relative importance, or implicitly indicating the number or order of the indicated technical features. All directional indications in the embodiments of this application (e.g., up, down, left, right, front, back…) are for interpreting the relative positional relationships, movement, etc., between each component in a particular orientation (as shown in the drawings), and as that particular orientation changes, the directional indications change accordingly. Furthermore, the terms “includes,” “has,” and all variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, and may optionally include further steps or units not listed, or may optionally include other steps or units specific to those processes, methods, products, or apparatus.

[0039] As used herein, “Examples” means that certain features, structures, or properties described in relation to an example may be included in at least one example of this application. Not all instances of the term appearing in the specification necessarily refer to the same example, nor do they refer to an example that is exclusively independent or alternative to another example. Those skilled in the art will understand, both explicitly and implicitly, that the examples described herein can be combined with other examples.

[0040] It should be explained that when an element is said to be “attached” to another element, it may be directly located to the other element, or there may be an intervening element. When an element is considered to be “connected” to another element, it may be directly connected to the other element, or there may be one or more intervening elements simultaneously between them. The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used herein are for illustrative purposes only and do not represent only one embodiment.

[0041] 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.

[0042] In 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 contain one or more powders, granules, elongated fragments, strips or sheets of one or more of vanilla leaves, dried flowers, herbaceous plants having volatile flavors, 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.

[0043] 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 a filter, is exposed outside the aerosol generator 100, which is advantageous for the user's inhalation.

[0044] As shown in Figure 1, the structure of the aerosol generator 100 according to one embodiment of this application is such that the entire outer shape of the device is substantially flattened cylindrical, and the external members of the aerosol generator 100 are The aerosol generator includes a housing 10 that substantially defines the outer surface of the aerosol generator, has a hollow internal structure, and further forms an assembly space available for necessary functional components such as electronic devices and heating devices. The housing 10 has a longitudinally opposed near end 110 and far end 120, the near end 110 being the end closer to the user to facilitate handling, heating, and suction of the aerosol generating product 1000 during use, and the far end 120 being the end further away from the user. Here, The near end 110 is provided with a receiving port 111, and the aerosol generating product 1000 can be received into the housing 10 and heated, or removed from the housing 10, through the receiving port 111. An intake port 121 is provided at the far end 120, and the intake port 121 is for allowing outside air to enter the housing 10 during the suction process.

[0045] In several examples, the outer housing 10 may be formed from a metal or alloy such as stainless steel or aluminum. Other suitable materials include various plastics (e.g., polycarbonate), metal-plated plastic, ceramics, and the like.

[0046] 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, and during use, the aerosol-generating product 1000 can be removably received into the cavity through the receiving port 111.

[0047] Furthermore, as shown in Figure 1, the aerosol generator 100 is The system further includes an air passage 150 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.

[0048] As shown in Figure 1, the aerosol generator 100 is Preferably, a rechargeable DC battery cell 130, and a power supply battery cell 130 that can be charged by connecting to an external power source, The system further includes a circuit board 140 on which circuits are arranged or integrated for controlling the heating or operation of the aerosol generator 100.

[0049] 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. The aerosol generating product 1000 is also at least partially housed and held within the heater 30 when received into the housing 10.

[0050] As shown in Figures 2 and 3, the heater 30 is configured in a substantially vertically elongated tubular shape. The apparatus includes a tubular base 31 positioned to surround the cavity, and in practice, the tubular hollow 330 of the base 31 defines and surrounds the cavity for receiving the aerosol generating product 1000. The material of the base 31 is a material with good thermal conductivity, such as ceramics, glass, metals or alloys with an insulating surface, such as anodized aluminum, aluminum alloys, copper alloys, stainless steel. Examples include stainless steel, and during use, the substrate 31 at least partially defines the area for containing and holding the aerosol-generating product 1000. In multiple embodiments, the thermal conductivity of the substrate 31 is at least 10 W / m·k, preferably at least 100 W / m·k, or in multiple embodiments, the thermal conductivity of the substrate 31 is greater than or higher than 200 W / m·k. In multiple embodiments, the substrate 31 includes a metal suitable for the high thermal conductivity described above, such as aluminum, copper, titanium, or an alloy of at least one of them.

[0051] In several specific implementations, the base 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. In the implementation, the length of the aerosol generating product 1000 that is surrounded or enclosed by the base 31 is greater than 30 mm, or the length of the aerosol generating product 1000 that is heated by the base 31 is greater than 30 mm.

[0052] As shown in Figures 2 and 3, the heater 30 is The system further includes a heating element 32 that at least partially surrounds or encloses the substrate 31, and during use, the substrate 31 receives or transfers heat from the heating element 32 for use in heating the aerosol generating product 1000.

[0053] In multiple embodiments, the heating element 32 includes a resistance heating element, and the heating element 32 can generate heat by producing resistance Joule heat when a direct current flows through it. In multiple embodiments, the material of the heating element 32 is a metallic material, a metallic alloy, graphite, carbon, conductive ceramics, or a composite material of a metallic material and other ceramic materials having appropriate impedance. Here, appropriate metallic or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nickel-chromium alloys, nickel-iron alloys, iron-chromium alloys, iron-chromium-aluminum alloys, iron-manganese-aluminum-based alloys, or stainless steel. Alternatively, in other embodiments, the heating element 32 may include an electromagnetic induction heating element or an infrared heating element, etc.

[0054] Alternatively, in several other modified embodiments, the heater 30 may consist only of a heating element 32, which surrounds or defines a cavity and is used to house the aerosol generating product 1000, directly transferring heat to the aerosol generating product 1000 for heating.

[0055] Furthermore, as shown in Figures 2 and 3, the heating element 32 is configured in a cylindrical shape that surrounds or encloses the base body 31. Also, the longitudinal extension size of the heater 30 of the heating element 32 is smaller than the extension size of the base body 31. For example, in several specific embodiments, the heating element 32 has a length of approximately 20 mm to 50 mm. Specifically, as shown in Figures 2 and 3, the heater 30 includes ends 310 and 320 that are opposite each other in the longitudinal direction, and in specific embodiments, ends 310 and 320 are defined by the longitudinal ends of the base body 31. There is a gap d1 between the first end and end 310 of the heating element 32, and the gap d1 is approximately 3 to 10 mm. There is also a gap d2 between the second end and end 320 of the heating element 32, and the gap d2 is approximately 3 to 10 mm.

[0056] After assembly, the heating element 32 does not completely enclose or surround the outer surface of the base body 31. As a result, the outer surface of the base body 31 has a first exposed region 311 defined by a spacing d1 near the end 310. The outer surface of the base body 31 also has a second exposed region 312 defined by a spacing d2 near the end 320. During assembly, the aerosol generator 100 is connected to the first exposed region 311 defined by the spacing d1 and the second exposed region 312 defined by the spacing d2 by clamping members, support members, or fixing members, thereby supporting the heater 30.

[0057] In several embodiments, the heating element 32 and the substrate 31 are insulated from each other. In several conventional embodiments, a surface insulating layer can be formed on the outer surface of the substrate 31 by surface anodizing, spray coating, deposition, etc. The surface insulating layer may include at least one of oxides, glazes, ceramics, organic polymers, etc. Alternatively, in several other embodiments, insulation is provided between the heating element 32 and the substrate 31 by providing an insulating organic polymer film between them, for example, the organic polymer film may be a polyimide film or a polytetrafluoroethylene film.

[0058] As shown in Figures 2 to 4, the heating element 32 is a resistance heating mesh. In this embodiment, the heating element 32 is a heating element formed by winding a sheet-like or mesh-like substrate. The wound heating element 32 is tubular in shape that is not closed in the circumferential direction and has a side opening 335 along the longitudinal direction. The side opening 335 extends from the first end to the second end in the longitudinal direction of the heating element 32. In multiple embodiments, the side opening 335 has a width of approximately 2 to 6 mm.

[0059] Alternatively, in several other modified embodiments, the surface of the substrate 31 is insulated, and the heating element 32 is a resistance heating track, film, or coating formed on the substrate 31 by printing, spray coating, deposition, etc. For example, the heating element 32 is a resistance heating track that is bypassing, meandering, and bent in the circumferential direction, or the heating element 32 is a patterned resistance heating track.

[0060] Alternatively, in several other modified embodiments, the heating element 32 is an infrared radiation coating formed on a substrate 31 by printing, spray coating, deposition, etc., and the heating element 32 is an electrically radiated infrared radiation coating that can heat the aerosol generating product 1000 by radiating infrared radiation into the cavity when an electric current flows through the infrared radiation coating. The infrared radiation coating for radiating infrared radiation may contain oxides of at least one or more metal elements such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, Zn, etc., and these metal oxides can emit far-infrared radiation having a heating effect when electrically heated to a suitable temperature.

[0061] As shown in Figures 2 to 4, the heating element 32 is It includes a first heating portion 321 and a second heating portion 322 arranged in the vertical direction, the first heating portion 321 being relatively close to the near end 110 and / or the end 310, and the second heating portion 322 being relatively close to the far end 120 and / or the end 320. A gap d3 is defined between the first heating portion 321 and the second heating portion 322, and the gap d3 causes the first heating portion 321 and the second heating portion 322 to be arranged discontinuously. Furthermore, by separating the first heating portion 321 and the second heating portion 322 with the gap d3, the first heating portion 321 and the second heating portion 322 are arranged spaced apart in the longitudinal direction. In some embodiments, the gap d3 has a length of approximately 3 to 10 mm. In addition, after assembly, the gap d3 defines and forms a third exposed region 313 on the surface of the base body 31.

[0062] Figure 4 shows a schematic diagram of the heating element 32 unfolded along its circumference. In this embodiment, the first heating portion 321 and the second heating portion 322 of the unfolded heating element 32 are mesh-like in shape. The unfolded heating element 32 is longer than it is wider; for example, in Figure 4, the length of the unfolded heating element 32 is approximately 32.8 mm, and its width is approximately 18.7 mm. The ratio of the length to the width of the heating element 32 is at least 1.5 or greater, which is advantageous for reducing resistance and improving power over the same area. Furthermore, in several embodiments, if the ratio of the length of the heating element 32 to the circumferential extension size or perimeter is at least 1.5 or greater, it is advantageous that the resistance of the heating element 32 can be further reduced to 0.6 Ω or less or lower by introducing a current in the circumferential direction of the heating element 32, or in several other embodiments, it is advantageous that the resistance of the heating element 32 can be further reduced to 0.3 Ω or less or lower by introducing a current in the circumferential direction of the heating element 32, thereby controlling the overall resistance of the heating element 32 to 0.2 to 0.6 Ω.

[0063] Furthermore, as shown in Figure 4, in the deployed heating element 32, the first heating portion 321 is near the first end or defines the first end, and the second heating portion 322 is near the second end or defines the second end. Also, in several embodiments, the extended length of the first heating portion 321 is substantially equal to the extended length of the second heating portion 322, or the first heating portion 321 and the second heating portion 322 have substantially the same extended length, for example, in a specific embodiment, the first heating portion 321 and / or the second heating portion 322 have a length of about 15 mm. Or, in several other varied embodiments, the extended length of the first heating portion 321 is greater than the extended length of the second heating portion 322, or the second heating portion 322 is longer than the first heating portion 321.

[0064] During use, by positioning the electrodes spaced apart in the circumferential direction, current is induced in the circumferential direction of the first heating portion 321 and the second heating portion 322 of the heating element 32. The unfolded heating element 32 includes a first side 3210 and a second side 3220 that are opposite in the width direction. The heater 30 is, For example, a long, thin conductive lead wire, a first electrode 331 extending from the first end to the second end of the heating element 32, and the first electrode 331 which is coupled simultaneously with the first heating portion 321 and the second heating portion 322 on the first side 3210 to conduct electricity, For example, a long, thin conductive lead wire, with a second electrode 332 that conducts electricity by being coupled to the first heating portion 321 at the second side 3220, For example, it further includes a third electrode 333, which is a long, thin conductive lead wire and is coupled to the second heating portion 322 at the second side 3220 to conduct electricity.

[0065] After being placed on the base 31, the first side 3210 and the second side 3220 define the side opening 335, or in the circumferential direction, the side opening 335 is located between the first side 3210 and the second side 3220.

[0066] The material of the first electrode 331 and / or the second electrode 332 and / or the third electrode 333 is made from a good conductive metal material with relatively low resistivity, such as gold, silver, copper, or alloys containing them. During use, the first electrode 331 and / or the second electrode 332 and / or the third electrode 333 can conduct current in the circumferential direction of the first heating portion 321 and the second heating portion 322. The first electrode 331 and / or the second electrode 332 and / or the third electrode 333 are firmly bonded to the heating element 32 by welding or the like to form conductivity.

[0067] Furthermore, the heating element 32 has holes arranged in a substantially matrix, array, or regular pattern, thereby giving the heating element 32 a mesh-like structure. In the embodiment shown in Figure 4, the holes are rectangular in shape, and the size of the holes in the longitudinal direction of the heating element 32 is larger than the size in the circumferential or width direction. Alternatively, the holes extend in the longitudinal direction of the heating element 32.

[0068] Alternatively, in several other modified embodiments, the heating element 32 may further have more heating portions, for example, a third heating portion arranged sequentially in the longitudinal direction spaced apart from the second heating portion 322, or further include a fourth heating portion, a fifth heating portion, and so on.

[0069] Accordingly, the heater 30 may include more electrodes. Furthermore, some of these electrodes may function as common electrodes for multiple heating sections. For example, in several specific embodiments, the heater 30 is: The first heating section 321, the second heating section 322, and the third heating section, A first electrode 331 is positioned on the first side 3210, extends from the first heating portion 321 to the second heating portion 322, and conducts electricity simultaneously with the first heating portion 321 and the second heating portion 322, A second electrode 332 is positioned on the second side 3220 and is coupled only to the first heating portion 321 to form conductivity, A third electrode 333 is positioned on the second side 3220, extends from the second heating portion 321 to the third heating portion, and conducts electricity simultaneously with the second heating portion 322 and the third heating portion. The system may also include a fourth electrode positioned on the first side 3210 and coupled only to the third heating portion to form conductivity.

[0070] Thus, in implementation, by adjusting the connection configuration of the electrodes and the circuit described above, it is possible to selectively heat one of the first heating section 321, the second heating section 322, and the third heating section individually, heat two of them in parallel or series connection, or heat all three simultaneously in parallel, series, or mixed connection.

[0071] Specifically, the holes in the heating element 32 are The first heating portion 321 has holes 3211, The second heating portion 322 includes a hole 3221 located in the second heating portion 322.

[0072] In multiple embodiments, the holes 3211 in the first heating portion 321 and / or the holes 3221 in the second heating portion 322 are formed by laser cutting or etching on a sheet-like substrate before it is wound to form the heating element 32. The holes 3211 in the first heating portion 321 are arranged in an array, so that the first heating portion 321 becomes a grid shape, and the holes 3221 in the second heating portion 322 are arranged in an array, so that the second heating portion 322 becomes a grid shape.

[0073] In the embodiments shown in Figures 2 and 4, holes 3211 and / or 3221 are rectangular in shape. Alternatively, in several other modified embodiments, holes 3211 and / or 3221 may be circular, triangular, or polygonal in shape.

[0074] In several embodiments, the area of ​​the hole 3211 in the first heating portion 321 is smaller than the area of ​​the hole 3221 in the second heating portion 322. Alternatively, the length of the hole 3211 in the first heating portion 321 is smaller than the length of the hole 3221 in the second heating portion 322, or the width of the hole 3211 in the first heating portion 321 is smaller than the width of the hole 3221 in the second heating portion 322. For example, in several embodiments, the hole 3211 has a length of approximately 3 to 7 mm and a width of 0.2 to 0.8 mm, and the hole 3221 has a length of approximately 4 to 8 mm and a width of 0.7 to 1.2 mm.

[0075] Alternatively, in several other modified embodiments, the holes 3211 and / or 3221 may be arranged such that the circumferential elongation size of the heating element 32 is greater than the longitudinal elongation size of the heating element 32, i.e., the holes 3211 and / or 3221 have a longer shape in the circumferential direction.

[0076] In the embodiment shown in Figure 4, the spacing d31 between adjacent holes 3211 in the first heating portion 321 is approximately 0.5 mm in the width direction, and the spacing d32 between adjacent holes 3211 is approximately 0.5 mm in the length direction. Also in the embodiment shown in Figure 4, the spacing d33 between adjacent holes 3221 in the second heating portion 322 is approximately 0.2 mm in the width direction, and the spacing d34 between adjacent holes 3221 is approximately 0.2 mm in the length direction.

[0077] As shown in Figure 4, the heating element 32 is The device further includes a connecting portion 324 located on the first side 3210, the connecting portion 324 extending from the first heating portion 321 to the second heating portion 322, thereby connecting the first heating portion 321 and the second heating portion 322 and conducting electricity. Furthermore, the connecting portion 324 closes the gap d33 on the first side 3210, while the gap d33 is open on the second side 3220.

[0078] In several embodiments, the heating element 32, including the first heating portion 321, the connecting portion 324, and the second heating portion 322, is integrally formed or manufactured. For example, the first heating portion 321, the connecting portion 324, and the second heating portion 322 are obtained integrally after removing excess parts from a sheet-like substrate precursor by etching or cutting.

[0079] In this embodiment, the first electrode 331 and the connecting portion 324 are coupled, allowing for electrical conduction between them, which is advantageous for improving the stability of the electrical connection between the first electrode 331 and the first heating portion 321 and the second heating portion 322.

[0080] In the embodiment shown in Figure 4, the width of the first heating portion 321 may be greater than the width of the second heating portion 322. Therefore, if the first heating portion 321 and the second heating portion 322 are aligned on the first side 3210, the first heating portion 321 will protrude slightly from the second heating portion 322 on the second side 3220. In this case, after welding the second electrode 332 and the third electrode 333, the elongated second electrode 332 and the third electrode 333 / second heating portion 322 are formed separately, which is advantageous in preventing short circuits between them.

[0081] Alternatively, in several other modified embodiments, the width of the first heating portion 321 may be equal to the width of the second heating portion 322, in which case, after welding the elongated second electrode 332 and third electrode 333, insulating tubes are fitted over the second electrode 332 and third electrode 333, respectively, or a surface insulating layer is spray-coated to provide insulation, thereby preventing them from coming into contact and causing a short circuit during assembly.

[0082] During use, current can be selectively introduced in the first heating portion 321 and / or the second heating portion 322 of the heating element 32 by selectively connecting any two or three of the first electrode 331, second electrode 332, and third electrode 333 to the circuit board 140. Specifically, for example, the first electrode 331, second electrode 332, and third electrode 333 are selectively connected to the circuit board 140 via a switch transistor, such as a MOS transistor, which can be switched between an on state and an off state, thereby changing the segment of the aerosol generating product 1000 that is heated by the heating element 32.

[0083] By selectively connecting the first electrode 331, the second electrode 332, and the third electrode 333 to the circuit board 140 in different forms of electrical connection, it is possible to selectively heat only one of the first heating section 321 and the second heating section 322 individually, or to selectively heat the first heating section 321 and the second heating section 322 simultaneously in series or parallel connection.

[0084] Specifically, for example, heating may be initiated in either the first heating section 321 or the second heating section 322 independently, while heating is not initiated in the other, thereby heating a portion of the aerosol generating product 1000 independently. Alternatively, for example, by connecting the first heating section 321 or the second heating section 322 to the circuit board 140 in different configurations, i.e., in series or parallel, the first heating section 321 or the second heating section 322 can simultaneously heat different segments of the aerosol generating product 1000 with different powers, thereby resulting in different temperatures and different aerosol generation efficiency for the segments of the aerosol generating product 1000 surrounded by the first heating section 321 or the second heating section 322.

[0085] Specifically, for example, Figure 5 shows a schematic diagram in one embodiment in which, after connecting the first electrode 331 and the second electrode 332 to the circuit board 140, respectively, the first electrode 331 and the second electrode 332 are connected to the positive and negative electrodes of the battery cell 130, respectively, to form a circuit, thereby deriving a current i11 in the first heating portion 321. As shown in Figure 5, in the connection configuration that forms a closed circuit as in Figure 5, a circumferential operating current is generated only in the first heating portion 321, and there is no current in the second heating portion 322.

[0086] As shown in Figure 5, when current is introduced in the first heating portion 321 by the first electrode 331 and the second electrode 332, several resistive conductor paths are formed in the first heating portion 321 in the circumferential direction from the first electrode 331 to the second electrode 332. These multiple resistive conductor paths extend substantially by bypassing, bending, and are defined and formed by multiple holes 3211.

[0087] Specifically, for example, Figure 6 shows a schematic diagram in another embodiment in which the first electrode 331 and the third electrode 333 are connected to the circuit board 140, and then the first electrode 331 and the third electrode 333 are connected to the positive and negative electrodes of the battery cell 130, respectively, to form a circuit and guide a current i21 in the second heating portion 322. As shown in Figure 6, in the connection configuration that forms a closed circuit as shown in Figure 6, a circumferential operating current is formed only in the second heating portion 322, and there is no current in the first heating portion 321. As shown in Figure 6, when a current is guided in the second heating portion 322 by the first electrode 331 and the second electrode 332, several resistive conductor paths are formed in the second heating portion 322 in the circumferential direction from the first electrode 331 to the third electrode 333. These multiple resistive conductor paths substantially detour, bend and extend, and these multiple resistive conductor paths are defined and formed by a plurality of holes 3221.

[0088] In the embodiments shown in Figures 5 and 6, the path width of current i11 is greater than the path width of current i21. As a result, when current is introduced in the circumferential direction of the first heating portion 321 and the second heating portion 322 in the configuration of Figure 5 or Figure 6, the resistance value of the first heating portion 321 is smaller than the resistance value of the second heating portion 322.

[0089] Figure 7 shows a schematic diagram of another embodiment in which the first heating section 321 and the second heating section 322 are connected in parallel to simultaneously generate current. In Figure 7, the first electrode 331 is connected to the circuit board 140 and connected to the positive electrode of the battery cell 130 to create conductivity, and the second electrode 332 and the third electrode 333 are connected to the circuit board 140 and connected to the negative electrode of the battery cell 130 to create conductivity. This simultaneously generates a circumferential current i12 in the first heating section 321 and a circumferential current i22 in the second heating section 322, allowing simultaneous heating of the first heating section 321 and the second heating section 322. In this case, the voltage across the parallel-connected first heating section 321 and the second heating section 322 is the same, and in this case, the relationship between power, voltage and resistance is P=U 2As can be seen from / R, the resistance of the first heating section 321 is relatively small, and as a result, the first heating section 321 has greater heating power than the second heating section 322.

[0090] Figure 8 shows a schematic diagram of another embodiment in which the first heating section 321 and the second heating section 322 are connected in series to simultaneously generate current. In Figure 8, the second electrode 332 is connected to the circuit board 140 and connected to the positive electrode of the battery cell 130 for conductivity, and the third electrode 333 is connected to the circuit board 140 and connected to the negative electrode of the battery cell 130 for conductivity. In this embodiment, the first electrode 331 is not connected to the circuit, so that the first heating section 321 and the second heating section 322 are arranged to be connected in series in Figure 8. Also in Figure 8, the total current i13 in the first heating section 321 and the total current i23 in the second heating section 322 are the same. The relationship between power, current and resistance is P=I 2 As can be seen from ×R, if the resistance of the first heating section 321 is smaller than the resistance of the second heating section 322, the first heating section 321 has less power than the second heating section 322.

[0091] Thus, in implementation, the circuit board 140 can selectively supply power to the heating element 32 in any of the forms shown in Figures 5 to 8, thereby causing only one of the first heating section 321 and the second heating section 322 to heat, or causing both the first heating section 321 and the second heating section 322 to heat simultaneously.

[0092] Alternatively, in several other modified embodiments, the heater 30 is The heater 30 further includes an insulating element that surrounds or encloses the heating element 32 on the outside and provides insulation to the outside thereof. The insulating element is, for example, rolled aerogel felt, or a porous material or a vacuum tube. Alternatively, in several other modified embodiments, the insulating element of the heater 30 is a tube having an internal insulating cavity, where there is an insulating cavity between the inner and outer surfaces of the tubular insulating element, and the pressure in the insulating cavity is less than the external pressure, i.e., the insulating element is a vacuum-insulated tube having a degree of vacuum. Alternatively, in several 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, where, at equivalent pressure and temperature, the thermal conductivity of argon gas is about one-third less than that of air, effectively providing insulation.

[0093] Alternatively, in several other modified embodiments, the heater 30 is The system further includes a temperature sensor that detects the temperature of the first heating portion 321 by being attached to the first heating portion 321.

[0094] Alternatively, in several other modified embodiments, the heater 30 is The heater 30 further includes a thermoplastic adhesive member for enclosing and fastening the first temperature sensor by surrounding the temperature sensor outside the heater 30.

[0095] In several embodiments, the thermoplastic adhesive member contains at least one of a heat-resistant synthetic resin, polytetrafluoroethylene (Teflon®), and silicon, and in several other modified embodiments, the thermoplastic adhesive member includes a heat-shrinkable tube or a high-temperature resistant tape.

[0096] For example, in a specific example, the heating process of the aerosol generating product 1000 is as follows: In the first period S10, the first electrode 331 and the second electrode 332 are connected to the circuit board 140 in the electrical connection configuration shown in Figure 5, and a current is introduced in the first heating portion 321 to heat the first segment of the aerosol generating product 1000 surrounded by the first heating portion 321. A second period S20 is in which the second electrode 332 and the third electrode 333 are connected to the circuit board 140 in the form of electrical connection shown in Figure 8, and connected to the positive and negative electrodes of the battery cell 130, respectively, thereby forming a series connection between the first heating section 321 and the second heating section 322 and performing simultaneous heating, wherein the first heating section 321 heats with lower power than the second heating section 322.

[0097] In this configuration, during the preheating stage, for example in the first period S10, the first segment of the aerosol generating product 1000 surrounded by the first heating portion 321 is first rapidly heated. Then, in the second period S20, the first segment of the aerosol generating product 1000 surrounded by the first heating portion 321 and the second segment surrounded by the second heating portion 322 are heated simultaneously. The temperature of the second segment of the aerosol generating product 1000 surrounded by the second heating portion 322 is gradually raised to a temperature close to that of the first segment surrounded by the first heating portion 321, thereby reducing the temperature difference between the first segment and the second segment that resulted from heating only the first segment in the first period S10.

[0098] In some embodiments, the first period S10 and the second period S20 are continuous, or in other modified embodiments, the first period S10 and the second period S20 are discontinuous, for example, separated.

[0099] Alternatively, in another modified embodiment, the heating process of the aerosol generating product 1000 is as follows: In the first period S10a, the first electrode 331 and the second electrode 332 are connected to the circuit board 140 in the electrical connection configuration shown in Figure 5, and a current is introduced in the first heating portion 321 to heat the first segment of the aerosol generating product 1000 surrounded by the first heating portion 321. The second period S20a includes a configuration of electrical connections as shown in Figure 7, in which the first electrode 331 is connected to the positive electrode of the battery cell 130, and the second electrode 332 and third electrode 333 are connected to the negative electrode of the battery cell 130, thereby forming a parallel connection between the first heating portion 321 and the second heating portion 322, and heating is performed simultaneously, wherein the first heating portion 321 heats with a higher power than the second heating portion 322.

[0100] In this configuration, during the preheating stage, for example in the first period S10a, the first segment of the aerosol generating product 1000 surrounded by the first heating portion 321 is first rapidly heated, and then in the second period S20a, the first segment of the aerosol generating product 1000 surrounded by the first heating portion 321 and the second segment surrounded by the second heating portion 322 are heated simultaneously, gradually increasing the temperature difference between the first segment surrounded by the first heating portion 321 and the second segment surrounded by the second heating portion 322.

[0101] For example, in a specific example, the heating process of the aerosol generating product 1000 is as follows: In the first period S10b, the second electrode 332 and the third electrode 333 are connected to the circuit board 140 in the electrical connection configuration shown in Figure 7, and then connected to the positive and negative electrodes of the battery cell 130, respectively, thereby forming a parallel connection between the first heating section 321 and the second heating section 322 and performing simultaneous heating, wherein the first heating section 321 heats with greater power than the second heating section 322, raising the temperature of the first segment of the aerosol generating product 1000 surrounded by the first heating section 321 to a higher temperature than the second segment, The second period S20b includes a second period S20b in which the second electrode 332 and the third electrode 333 are connected to the circuit board 140 in the form of electrical connection shown in Figure 8, and connected to the positive and negative electrodes of the battery cell 130, respectively, thereby forming a series connection between the first heating section 321 and the second heating section 322 and performing simultaneous heating, wherein the first heating section 321 heats with lower power than the second heating section 322, gradually reducing the temperature difference between the first heating section 321 and the second heating section 322 during the first period S10b.

[0102] For example, in the first period S10b, the first heating portion 321 is heated to a higher temperature than the second heating portion 322 so that they have a first temperature difference, and in the second period S20b, they are heated simultaneously, and the temperature of the second heating portion 322 is raised more quickly to reduce the temperature difference between them from the first temperature difference to the second temperature difference.

[0103] Furthermore, in this embodiment, during the heating process, that is, during the first period S10b and the second period S20b, the first heating section 321 and the second heating section 322 are always heated simultaneously. As a result, when they are heated simultaneously, their power is related, and therefore the temperatures during their simultaneous heating may also be related based on the power relationship. Moreover, in this embodiment, the temperature of the first heating section 321 can be detected by a temperature sensor coupled only to the first heating section 321, and at the same time, the temperature of the related second heating section 321 can be determined based on the temperature of the first heating section 321 detected by the temperature sensor. As a result, in the control, the circuit can control the power supplied to the first heating section 321 and the second heating section 322 during simultaneous heating based only on the temperature of the first heating section 321 detected by the temperature sensor, so that they can each maintain their respective target temperatures. Also, in this embodiment, the heater 30 does not need to have a temperature sensor coupled to the second heating section 322 to detect the temperature of the second heating section 322.

[0104] Furthermore, for example, in one embodiment, the electrical connection configuration shown in Figure 7 is always employed, and the first and second segments of the aerosol generating product 1000 are simultaneously heated in parallel to the first heating section 321 and the second heating section 322. During the heating process, the first and second segments of the aerosol generating product 1000 always have different temperatures. Specifically, the temperature curve in the heating process of this embodiment, in which the electrical connection configuration shown in Figure 7 is always employed, can be seen in Figure 9, where curve S1 in Figure 9 is the temperature curve of the first heating section 321, and curve S2 is the temperature curve of the second heating section 322, and the heating process includes the following period. During the period from 0 to t1, the first heating section 321 is controlled to preheat rapidly to the target temperature T1. Also, during this first period, the second heating section 322 has lower power than the first heating section 321, so its heating rate is lower than that of the first heating section 321. As a result, the second segment of the aerosol generating product 1000 heats up more slowly than the first segment and cannot heat up to temperature T1 as rapidly. During the period t1-t2, heating is performed by maintaining the heating temperature of the first heating section 321 substantially at the target temperature T1, thereby heating the first segment of the aerosol generating product 1000 surrounded by the first heating section 321 to generate an aerosol. During the second period, the heating temperature of the second heating section 322 increases substantially gradually, but remains lower than the temperature of the first heating section 321. During the period t2-t4, the first heating section 321 reaches a higher temperature earlier than t4 or earlier at t3 and maintains that temperature. Naturally, during this third period, the second heating section 322 still rises to a lower temperature than the first heating section 321 at temperature T2. During the period t4-t5, heating is performed by controlling the heating temperature of the first heating section 321 to be maintained at the target temperature T2 until the suction is complete.

[0105] In some embodiments, curve S1 in Figure 9 may be the target temperature curve during the heating process of the first heating section 321, and curve S2 may be the target temperature curve during the heating process of the second heating section 322. Furthermore, the circuit can maintain the heating temperature of the first heating section 321 at the target temperature shown in curve S1 solely by the detection result of the temperature sensor coupled to the first heating section 321, and similarly, based on the power relationship, the heating temperature of the second heating section 322 can be maintained at the target temperature shown in curve S2.

[0106] In the specific implementations shown in multiple Figures 9, the target temperature of the first heating section 321 during periods 0-t1 and t1-t2 is defined as temperature T1, and temperature T1 may be set to 200-450°C.

[0107] In the specific implementation shown in Figure 9, the target temperature of the second heating section 322 during periods t2-t4 and t4-t5 may be the same as the target temperature of the first heating section 321 during periods 0-t1 and t1-t2, which is temperature T1.

[0108] In the specific implementation shown in Figure 9, the target temperature of the second heating section 322 during the t2-t4 period and the t4-t5 period may be higher or lower than the target temperature of the first heating section 321 during the 0-t1 period and the t1-t2 period.

[0109] In the specific implementation shown in Figure 9, the time for rapid heating and preheating during the 0-t1 period may be set to approximately 5-20 seconds, the suction time during the t1-t2 period is approximately 40-80 seconds, the time during the t2-t4 period is approximately 5-20 seconds, and the suction time during the t4-t5 period is approximately 40-100 seconds.

[0110] In the specific implementation shown in Figure 9, during periods 0-t1 and t1-t2, the first heating section 321 rapidly heats the segment of the aerosol generating product 1000 surrounded by the first heating section 321 to rapidly generate aerosols, and then the entire product is heated during periods t2-t4 and t4-t5.

[0111] Alternatively, in the specific implementation shown in Figure 9, the length of the t4-t5 period may be greater than the length of the t1-t2 period in order to compensate for the heating of the aerosol generating product 1000 to the segment surrounded by the second heating portion 322.

[0112] Furthermore, in the above implementation, the heating temperature of the first heating section 321 and / or the second heating section 322 never decreased. For example, the temperature of the first heating section 321 and / or the second heating section 322 increased in stages.

[0113] For example, Figure 10 shows the temperature change when the first heating portion 321 and the second heating portion 322 of the heating element 32 heat the first and second segments of the aerosol generating product 1000, respectively, in a specific embodiment. Curve S1 in Figure 10 is the temperature curve of the first heating portion 321, and S2 is the temperature curve of the second heating portion 322. As shown in Figure 10, the heating process includes the following periods. During the first period S10c (hours 0 to t1), the first heating section 321 is rapidly heated to the target temperature T1 in the parallel electrical connection configuration shown in Figure 7, while the temperature of the second heating section 322 is lower than the target temperature T1. During the second period S20c (times t1-t2), the second heating section 322 is heated relatively faster in the series electrical connection configuration shown in Figure 8, gradually reducing the temperature difference with the first heating section 321. By time t2, they reach a temperature that is substantially the same as or close to the target temperature T2. During the third period S30c (hours t2-t3), the first heating section 321 and the second heating section 322 are simultaneously heated in the electrical connection configuration shown in Figure 8. However, the output power of the battery cell 130 is adjusted so that the second heating section 322 continues to rise to a higher target temperature T3, while the temperature of the first heating section 321 is maintained at the target temperature T2. During the fourth period S40c (hours t3-t4), for example, during the heat retention phase, heating is performed so that the second heating section 322 is substantially maintained at the target temperature T3 until the suction is complete, by adjusting the output power of the battery cell 130 while maintaining the configuration of electrical connections shown in Figure 8 or Figure 6. Meanwhile, since the first heating section 321 was rapidly preheated during the first period S10c and the second period S20c, the volatile material of the first segment of the aerosol generating product 1000 has already rapidly evaporated. As a result, the temperature of the second heating section 322 is maintained during the fourth period S40c, while the temperature of the first heating section 321 is lowered, or heating of the first heating section 321 is stopped and it is allowed to cool naturally.

[0114] In several specific implementations shown in Figure 10, the rapid heating and preheating time during period 0 to t1 may be set to approximately 5 to 20 seconds, the suction time during period t1 to t2 is approximately 40 to 80 seconds, the time during period t2 to t3 is approximately 5 to 20 seconds, and the suction time during period t3 to t4 is approximately 40 to 100 seconds.

[0115] In several specific implementations shown in Figure 10, during periods 0-t1 and t1-t2, the first heating section 321 heats the first segment of the aerosol generating product 1000 surrounded by the first heating section 321 at a higher temperature and more rapidly to rapidly generate an aerosol, and then during periods t2-t3 and t3-t4, overall heating is performed.

[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

1. An aerosol generating device configured to generate aerosols by heating an aerosol generating product, A heating element for heating an aerosol generating product, comprising a first heating portion and a second heating portion arranged spaced apart in the vertical direction, Battery cells to supply power, A circuit configured to enable simultaneous heating of the first heating portion and the second heating portion in series or parallel by selectively connecting them to the battery cell in series or parallel, The system includes a temperature sensor that is coupled to the first heating portion to detect the temperature of the first heating portion, The aerosol generator is further configured such that the circuit controls the power supplied to the first heating portion and the second heating portion based on the temperature of the first heating portion detected by the temperature sensor, thereby maintaining the first heating portion at a first target temperature and the second heating portion at a second target temperature.

2. The system further includes a first electrode, a second electrode, and a third electrode, The first heating portion is electrically connected between the first electrode and the second electrode, and the second heating portion is electrically connected between the first electrode and the third electrode. The aerosol generator according to claim 1, characterized in that the circuit is configured to selectively connect the first heating portion and the second heating portion to the battery cell in series or parallel by connecting the first electrode, the second electrode and the third electrode in different forms of electrical connection to the battery cell.

3. In the aforementioned heating element, further The aerosol generator according to claim 1 or 2, characterized in that a gap for preventing heat transfer between the first heating portion and the second heating portion is defined in the vertical direction between the first heating portion and the second heating portion.

4. The aerosol generator according to claim 1 or 2, characterized in that the circumferential stretch size of the heating element in the first heating portion is larger than the circumferential stretch size of the heating element in the second heating portion.

5. The aerosol generating apparatus according to claim 2, characterized in that the second electrode and the second heating portion are offset from each other in the longitudinal direction of the heating element.

6. The aerosol generating apparatus according to claim 1 or 2, characterized in that the heating element is provided with a plurality of holes so as to form a grid pattern.

7. The aerosol generating apparatus according to claim 6, characterized in that the elongation size of the hole in the longitudinal direction of the heating element is larger than the elongation size of the heating element in the circumferential direction.

8. The aforementioned hole is The first hole located in the first heating portion, The aerosol generating apparatus according to claim 6, characterized by comprising a second hole disposed in the second heating portion.

9. The elongation size of the first hole in the longitudinal direction of the heating element is smaller than the elongation size of the second hole in the longitudinal direction of the heating element. and / or, the stretch size of the first hole in the circumferential direction of the heating element is smaller than the stretch size of the second hole in the circumferential direction of the heating element. The aerosol generating apparatus according to claim 8, characterized in that, and / or, in the longitudinal and / or circumferential direction of the heating element, the spacing between adjacent first holes is greater than the spacing between adjacent second holes.

10. The first heating portion includes a plurality of first resistive conductor paths defined by the first hole and extending in a bypass manner between the first electrode and the second electrode in the circumferential direction of the heating element, and / or, the aerosol generator according to claim 8, characterized in that the second heating portion is defined by the second hole and includes a plurality of second resistive conductor paths that bypass and extend between the first electrode and the third electrode in the circumferential direction of the heating element.

11. The aerosol generator according to claim 10, characterized in that the path length of the first resistive conductor path is smaller than the path length of the second resistive conductor path, and / or the width of the first resistive conductor path is larger than the width of the second resistive conductor path.

12. The aforementioned heating element is The aerosol generating apparatus according to claim 2, further comprising a connecting portion that extends from the first heating portion to the second heating portion and electrically connects the first heating portion and the second heating portion.

13. The aerosol generator according to claim 12, characterized in that the first heating portion, the second heating portion, and the connecting portion are integrally formed.

14. The aerosol generator according to claim 12, characterized in that the first electrode is at least partially coupled to the connection portion.

15. The heating element includes a first end and a second end that are opposite each other in the longitudinal direction. The aerosol generating apparatus according to claim 2, characterized in that the heating element has a side opening that extends from the first end to the second end so as not to be closed in the circumferential direction.

16. The side opening has a first side and a second side that are opposite in the circumferential direction of the heating element. The aerosol generator according to claim 15, characterized in that the first electrode is arranged on the first side, and the second electrode and the third electrode are arranged on the second side.

17. A cavity for receiving aerosol-generating products, The invention further includes an opening for receiving or removing an aerosol-generating product from the cavity, at least partially, during use. The aerosol generator according to claim 1 or 2, characterized in that the heating element is arranged to surround at least a portion of the cavity, and the first heating portion is closer to the opening than the second heating portion.

18. The present invention further includes a substrate that surrounds or defines at least a portion of the cavity, The aerosol generating apparatus according to claim 17, characterized in that the heating element includes a coating or film or conductive track or heating mesh bonded to the substrate, and the heating element and the substrate are capable of conducting heat to each other, thereby allowing the substrate to receive heat from the heating element and heat the aerosol generating product.

19. The aerosol generator according to claim 2, characterized in that the circuit is arranged so that the first heating portion and the second heating portion are connected in series to the battery cell and heated simultaneously, by selectively connecting one of the positive or negative electrodes of the battery cell to the second electrode and the other to the third electrode.

20. The aerosol generator according to claim 2, characterized in that the circuit is arranged so that the first heating portion and the second heating portion are connected in parallel to the battery cell and simultaneous heating is performed, by selectively connecting one of the positive or negative electrodes of the battery cell to the first electrode and the other to both the second electrode and the third electrode.

21. The aerosol generator according to claim 1 or 2, characterized in that when the first heating portion and the second heating portion are connected in parallel to the battery cell and heating is performed simultaneously, the power of the first heating portion is greater than the power of the second heating portion.

22. The aerosol generator according to claim 1 or 2, characterized in that when the first heating portion and the second heating portion are connected in series to the battery cell and heating is performed simultaneously, the power of the first heating portion is less than the power of the second heating portion.

23. The aforementioned circuit is During the first period, the first heating portion and the second heating portion are connected in parallel to the battery cell, thereby causing simultaneous heating of the first heating portion and the second heating portion. The aerosol generator according to claim 1 or 2, characterized in that, during the second period, the first heating portion and the second heating portion are connected in series to the battery cell, thereby causing simultaneous heating of the first heating portion and the second heating portion.

24. The circuit further, The power supplied to the first and second heating elements by the battery cell is controlled so that, during the first period, the temperature of the first heating element is raised higher than the temperature of the second heating element to maintain a first temperature difference, and during the second period, the temperature of the first heating element is raised higher than the temperature of the second heating element to maintain a second temperature difference. The aerosol generator according to claim 1 or 2, characterized in that the first temperature difference is greater than the second temperature difference.

25. The aerosol generator according to claim 1 or 2, characterized in that the heating element includes at least one of a resistance heating element or an infrared heating element.

26. The aerosol generator according to claim 1 or 2, characterized in that the aerosol generator does not have a temperature sensor that detects the temperature of the second heating portion by being coupled to the second heating portion.

27. An aerosol generating device configured to generate aerosols by heating an aerosol generating product, A heating element for heating an aerosol generating product, comprising a first heating portion and a second heating portion arranged spaced apart in the vertical direction, A first electrode, a second electrode, and a third electrode, wherein the first heating portion is electrically connected between the first electrode and the second electrode, and the second heating portion is electrically connected between the first electrode and the third electrode, Battery cells to supply power, It is a circuit, During the first period, the first heating portion and the second heating portion are connected in parallel to the battery cell by connecting one of the positive or negative electrodes of the battery cell to the first electrode and the other electrode to both the second and third electrodes, thereby performing simultaneous heating. An aerosol generator comprising a circuit configured to connect the first heating portion and the second heating portion to the battery cell in series and perform simultaneous heating during a second period by connecting one of the positive or negative electrodes of the battery cell to the second electrode and the other to the third electrode.

28. An aerosol generating device configured to generate aerosols by heating an aerosol generating product, A heating element for heating an aerosol generating product, comprising a first heating portion and a second heating portion arranged spaced apart in the vertical direction, Battery cells to supply power, It is a circuit, During the first period, the first heating portion and the second heating portion are connected in parallel to the battery cell, so that simultaneous heating is performed in a state where the power of the first heating portion is greater than the power of the second heating portion. An aerosol generator comprising a circuit configured to perform simultaneous heating in a state in which the power of the first heating portion is less than the power of the second heating portion, by connecting the first heating portion and the second heating portion in series to the battery cell during the second period.

29. A heater for an aerosol generator, A tubular base body is arranged to extend along the length of the heater, The heating element is arranged to surround at least a portion of the substrate, and the heating element is A first heating portion and a second heating portion are arranged spaced apart in the vertical direction, A distance defined in the vertical direction between the first heating portion and the second heating portion, which prevents heat transfer between the first heating portion and the second heating portion, A first electrode, a second electrode, and a third electrode, wherein the first heating portion is electrically connected between the first electrode and the second electrode, and the second heating portion is electrically connected between the first electrode and the third electrode, A heater for an aerosol generator, characterized by including a temperature sensor for detecting the temperature of the first heating portion by being coupled to the first heating portion.

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