Aerosol generating device and infrared emitter
By designing an independently controllable infrared emission area in the heating device, the problem of excessively rapid release of volatile substances from tobacco products in existing technologies has been solved, achieving a more uniform and efficient heating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI HEYUAN DEEP BLUE TECH CO LTD
- Filing Date
- 2020-01-15
- Publication Date
- 2026-05-12
AI Technical Summary
Existing heating devices release volatile substances too quickly when heating tobacco products, resulting in uneven and incomplete heating.
The design employs an infrared emitter, comprising at least one first infrared emitting region and a second infrared emitting region arranged sequentially along the circumferential direction of the chamber, which can be independently activated and controlled to heat different parts of the suction material respectively.
It enables gradual heating of the extractable material, improving heating uniformity and efficiency, and ensuring the full release of volatile substances.
Smart Images
Figure CN122004533A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of heated non-combustible tobacco products, and more particularly to an aerosol generating device and an infrared emitter. Background Technology
[0002] Tobacco products (such as cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion.
[0003] Examples of such products are heating devices that release compounds by heating rather than burning materials. For example, the material could be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, there are infrared heating devices that heat tobacco products via infrared radiation to release compounds and generate aerosols. Prior art patent 201821350103.0 discloses a heating device structure in which a nano-far-infrared coating and a conductive coating are sequentially formed on the outer surface of a quartz tube. After the conductive coating is connected to a power source, the nano-far-infrared coating heats itself upon power supply, generating far-infrared radiation through electron transitions, which is then radiated onto the tobacco product inside the quartz tube to heat the tobacco product. In use, the infrared emitting coating completely surrounds the area of the tobacco product to be heated, causing the volatile substances in the tobacco product to be released too quickly. Summary of the Invention
[0004] To address the problem that existing heating devices cause the rapid release of volatile substances from tobacco products, embodiments of the present invention provide an aerosol generating device that can be heated gradually.
[0005] Based on the above, the present invention provides an aerosol generating device for heating a respirable material to generate an inhalable aerosol; comprising: A chamber for receiving aspirable material; An infrared emitter is configured to radiate infrared rays into the chamber, thereby heating the suction material. The infrared emitter includes at least one first infrared emitting region and at least one second infrared emitting region arranged sequentially along the circumferential direction of the chamber; the first and second infrared emitting regions are configured to be activated independently so as to independently radiate infrared rays into the chamber to heat different portions of the aspirable material.
[0006] In a more preferred embodiment, the at least one first infrared emitting region and the at least one second infrared emitting region can be controlled sequentially, specifically, they can be activated alternately or simultaneously, thereby independently radiating infrared rays to heat different parts of the extractable material. Furthermore, in this embodiment, the different infrared emitting regions, such as the first and second infrared emitting regions, can be formed by two coatings or films bonded to the substrate in the circumferential direction, or by two portions of a single coating or film formed on the substrate in the circumferential direction.
[0007] In a more preferred embodiment, the first infrared emitting region and the second infrared emitting region are separated from each other.
[0008] In a more preferred embodiment, the infrared emitter includes: The base extends axially along the chamber; A first infrared emitting layer and a second infrared emitting layer are sequentially bonded to the surface of the substrate along the circumferential direction of the chamber; At least a portion of the first infrared emitting layer forms the first infrared emitting region, and at least a portion of the second infrared emitting coating forms the second infrared emitting region.
[0009] In a more preferred embodiment, the substrate includes a first surface adjacent to the chamber and a second surface opposite to the chamber; The first infrared emitting layer and the second infrared emitting layer are both located on the first surface or the second surface of the substrate.
[0010] In a more preferred embodiment, the first infrared emitting layer is a coating formed on the substrate or a thin film bonded to the substrate; And / or, the second infrared emitting layer is a coating formed on the substrate or a thin film bonded to the substrate.
[0011] In a more preferred embodiment, the substrate is configured as a tube extending axially along the chamber and surrounding the chamber; The first infrared emitting layer is a thin film wound around the outer surface of the substrate; and / or, the second infrared emitting layer is a thin film wound around the outer surface of the substrate.
[0012] In a more preferred embodiment, the first infrared emitting layer and the second infrared emitting layer do not completely cover the surface of the substrate, and a blank area is formed on the surface of the substrate between the first infrared emitting layer and the second infrared emitting layer along the circumferential direction of the chamber.
[0013] In a more preferred embodiment, the infrared emitter further includes a conductive element for supplying power to the first and second infrared emitting layers.
[0014] In a more preferred embodiment, the conductive element is a conductive coating formed on the substrate.
[0015] In a more preferred embodiment, the conductive coating at least partially overlaps with the first infrared emitting layer and the second infrared emitting layer, thereby forming a conductive connection with the first infrared emitting layer and the second infrared emitting layer.
[0016] In a more preferred embodiment, the conductive element is configured to extend along the axial direction of the chamber.
[0017] In a more preferred embodiment, the conductive element includes a first conductive element, a second conductive element, and a third conductive element arranged at intervals along the circumferential direction of the chamber; The first infrared emitting layer is coupled between the first conductive element and the second conductive element to radiate infrared rays into the chamber when the first conductive element and the second conductive element are energized. The second infrared emitting layer is coupled between the second conductive element and the third conductive element to radiate infrared rays into the chamber when the second conductive element and the third conductive element are energized.
[0018] In a more preferred embodiment, the conductive element is configured to extend along the circumferential direction of the chamber.
[0019] In a more preferred embodiment, the conductive element includes a first conductive element and a second conductive element opposite to each other in the axial direction of the chamber, as well as a third conductive element and a fourth conductive element; The first infrared emitting layer is coupled between the first conductive element and the second conductive element along the axial direction of the chamber, so as to radiate infrared rays into the chamber when the first conductive element and the second conductive element are energized; The second infrared emitting layer is coupled between the third and fourth conductive elements along the axial direction of the chamber to radiate infrared rays into the chamber when the third and fourth conductive elements are energized.
[0020] In a more preferred embodiment, the substrate includes a first end and a second end opposite each other in the axial direction of the chamber; the conductive element is configured to extend in the circumferential direction of the chamber; The conductive element includes a first conductive element disposed at the first end, and a second conductive element and a third conductive element disposed at the second end; The first conductive element includes a first portion opposite to the second conductive element along the axial direction of the chamber, and a second portion opposite to the third conductive element; The first infrared emitting layer is coupled between the first portion and the second conductive element along the axial direction of the cavity to radiate infrared rays into the cavity when the first portion and the second conductive element are energized. The second infrared emitting layer is coupled between the second portion and the third conductive element along the axial direction of the cavity to radiate infrared rays into the cavity when the second portion and the third conductive element are energized.
[0021] In a more preferred embodiment, the infrared emitter includes: The base extends axially along the chamber; An infrared emitting film is bonded to the surface of the substrate; a first conductive coating, a second conductive coating, and a third conductive coating are formed on the infrared emitting film extending axially along the cavity. The first conductive coating, the second conductive coating, and the third conductive coating are arranged sequentially along the circumference of the chamber, thereby dividing the infrared emitting film to form a first infrared emitting region located between the first conductive coating and the second conductive coating, and a second infrared emitting region located between the second conductive coating and the third conductive coating.
[0022] In a more preferred embodiment, the infrared emitter includes at least: A first substrate and a second substrate arranged around the chamber; A first infrared emitting layer is disposed on the first substrate, and a second infrared emitting layer is disposed on the second substrate; at least a portion of the first infrared emitting layer forms the first infrared emitting region, and at least a portion of the second infrared emitting layer forms the second infrared emitting region.
[0023] In a more preferred embodiment, the first substrate and / or the second substrate are configured as an arc shape curved in a direction away from the chamber; And / or, the first substrate and / or the second substrate are configured as sheets.
[0024] In a more preferred embodiment, there are two first launch regions and two second launch regions; The two first emission regions are arranged opposite each other along the radial direction of the chamber; and, The two second emission regions are arranged opposite each other along the radial direction of the chamber.
[0025] In a more preferred embodiment, the first infrared emitting region and the second infrared emitting region are configured to be activated alternately.
[0026] In a more preferred embodiment, a bridge circuit coupled to the first infrared emitting region and the second infrared emitting region is also included; The bridge circuit includes a transistor configured to alternately turn on or off to generate a first current supplied to a first emitting region and a second current supplied to a second emitting region, thereby causing the first infrared emitting region and the second infrared emitting region to be activated alternately.
[0027] In a more preferred embodiment, the first infrared emitting region and the second infrared emitting region have different infrared emission spectra.
[0028] In a more preferred embodiment, the infrared emission spectrum of the first infrared emission region has a different peak wavelength than that of the infrared emission spectrum of the second infrared emission region.
[0029] The present invention further proposes an infrared emitter for an aerosol generating device, comprising: A first infrared emitting region and a second infrared emitting region are arranged sequentially along the circumferential direction; the first infrared emitting region and the second infrared emitting region are configured to be activated independently, and thus independently radiate infrared rays to heat different parts of the absorbable material.
[0030] In the above-mentioned aerosol generating device, when the material is drawn into the receiving chamber, different areas along the circumferential direction correspond to the first infrared emitting area and the second infrared emitting area, respectively. During use, the material can be heated independently by the first infrared emitting area and the second infrared emitting area, thus allowing the material to be gradually heated from part to whole during use. Attached Figure Description
[0031] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0032] Figure 1 This is a schematic diagram of an aerosol generating device provided in one embodiment; Figure 2 yes Figure 1 Cross-sectional view of the aerosol generating device shown; Figure 3 yes Figure 2 A schematic diagram of one embodiment of a mid-infrared emitter; Figure 4 yes Figure 3 A schematic diagram of a mid-infrared emitter from another perspective; Figure 5 yes Figure 2 A schematic diagram of yet another embodiment of a mid-infrared emitter; Figure 6 yes Figure 2A schematic diagram of yet another embodiment of a mid-infrared emitter; Figure 7 This is a schematic diagram of an infrared emitting thin film proposed in one embodiment; Figure 8 yes Figure 7 A schematic diagram of an infrared emitter formed by an infrared emitting thin film; Figure 9 This is a schematic diagram of an infrared emitting thin film proposed in yet another embodiment; Figure 10 This is a schematic diagram of an infrared emitting thin film proposed in yet another embodiment; Figure 11 This is the emission spectrum of infrared light emitted from the first region as presented in one embodiment; Figure 12 This is the emission spectrum of infrared light emitted from the second region as presented in one embodiment; Figure 13 This is a schematic diagram of an infrared emitter proposed in yet another embodiment; Figure 14 This is a schematic diagram of the control circuit proposed in one embodiment; Figure 15 This is a schematic diagram of an infrared emitter proposed in yet another embodiment; Figure 16 This is a schematic diagram of an infrared emitter proposed in yet another embodiment. Detailed Implementation
[0033] To facilitate understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.
[0034] One embodiment of the present invention provides an aerosol generating device that heats rather than burns a smokeable material, such as a cigarette, thereby causing at least one component of the smokeable material to volatilize or be released to form an aerosol for inhalation.
[0035] In the preferred embodiment, the aerosol generating device heats the absorbable material by radiating far-infrared rays with a heating effect; for example, far-infrared rays of 3μm to 15μm. When the wavelength of the infrared rays matches the absorption wavelength of the volatile components of the absorbable material, the energy of the infrared rays is easily absorbed by the absorbable material, thereby heating the absorbable material and causing at least one volatile component to volatilize, generating an aerosol for inhalation.
[0036] The structure of an aerosol generating device according to an embodiment of the present invention can be found in [reference needed]. Figures 1 to 2 As shown, the device is generally constructed in a flat cylindrical shape, and the external components of the aerosol generating device include: The housing 10 has a hollow interior, which forms an assembly space for necessary functional components such as infrared radiation. The upper cover 11 is located at the upper end of the housing 10 along the length direction; the upper cover 11 can cover the upper end of the housing 10 to make the shape of the aerosol generating device complete and beautiful; on the other hand, it can be removed from the upper end of the housing 10, thereby facilitating the installation, disassembly and replacement of various functional components in the housing 10.
[0037] Further from Figure 1 and Figure 2 As can be seen, the top cover 11 has an opening 12 through which the suction material A can be received at least partially within the housing 10 along the length of the housing 10 and heated, or removed from the housing 10 through the opening 12.
[0038] The housing 10 is also provided with a switch button 13 on one side along the width direction. The user can manually activate the switch button 13 to control the start or stop of the aerosol generating device.
[0039] further Figure 2 The housing 10 contains: Battery cell 14 for power supply; The integrated circuit board 15 is used to control the operation of the aerosol generating device. The charging interface 16 for charging the battery cell 14, such as a USB type-C interface or a pin interface, can charge the battery cell 14 after being connected to an external power source or adapter.
[0040] See further Figure 2 As shown, in order to heat the absorbable material A, an infrared emitter 20 is provided inside the housing 10; the infrared emitter 20 is an electro-induced infrared emitter, which is used to radiate infrared rays to the absorbable material A received inside the housing 10 when the battery cell 14 provides power, thereby heating the absorbable material A.
[0041] exist Figure 2 In the preferred embodiment shown, the aerosol generating device further includes a heat insulation element 30 disposed radially outside the infrared emitter 20. In a more preferred embodiment, the heat insulation element 30 may include a vacuum heat insulation tube or the like with an internal vacuum region.
[0042] Further in Figure 2 The aerosol generating device also includes an upper support 40 and a lower support 50, both of which are hollow and annular in shape; these provide support for both ends of the infrared emitter 20 and the heat insulation component 30, respectively, so that the infrared emitter 20 and the heat insulation component 30 are stably maintained within the housing 10.
[0043] In a more preferred embodiment, the infrared emitter 20 has different infrared emitting regions arranged circumferentially, which can independently emit infrared rays towards the suction material A, thereby heating different areas of the suction material A. The infrared emitter 20, with its different infrared emitting regions arranged circumferentially, can be controlled sequentially, alternately activated, or activated simultaneously, each independently heating different parts of the suction material A. Furthermore, in this embodiment, the different infrared emitting regions can be formed by two coatings or films formed circumferentially on the substrate, or by a single coating or film formed on the substrate being separated circumferentially by a conductive coating.
[0044] Specifically Figure 3 In the preferred embodiment shown, the infrared emitter 20 includes: The tubular substrate 21, serving as a rigid carrier and a container for the suction-bearing material A, can be made of a high-temperature resistant and infrared-transparent material such as quartz glass, ceramic, or mica; preferably, it is a transparent material, such as a high-temperature resistant material with an infrared transmittance of 95% or higher; in use, at least a portion of the tubular hollow portion of the tubular substrate 21 forms a chamber 22 for receiving the suction-bearing material A; and, A first infrared emitting coating 23 and a second infrared emitting coating 24 are formed on the outer surface of the tubular substrate 21 and arranged sequentially in the circumferential direction. In use, the first infrared emitting coating 23 and the second infrared emitting coating 24 can generate heat themselves and radiate infrared rays suitable for heating the absorbable material A, such as far-infrared rays of 3μm to 15μm. When the wavelength of the infrared rays matches the absorption wavelength of the volatile components of the absorbable material A, the energy of the infrared rays is easily absorbed by the absorbable material A.
[0045] In typical implementations, the first infrared emitting coating 23 and the second infrared emitting coating 24 can be coatings made of ceramic materials such as zirconium, or Fe-Mn-Cu, tungsten, or transition metals and their oxides.
[0046] In a preferred embodiment, the first infrared emitting coating 23 and the second infrared emitting coating 24 are preferably composed of oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, and Zn. These metal oxides can radiate far-infrared rays with heating effect when heated to an appropriate temperature. The coating thickness is preferably controlled to be 30 μm to 50 μm. The coating is formed on the surface of the tubular substrate 21 by spraying the oxides of the above metal elements onto the outer surface of the tubular substrate 21 by atmospheric plasma spraying and then curing.
[0047] Further according to Figure 3In the preferred embodiment shown, the outer surface of the tubular substrate 21 is not completely covered by the first infrared emitting coating 23 and the second infrared emitting coating 24, and has a first blank area 211 located between the first infrared emitting coating 23 and the second infrared emitting coating 24 and extending in the axial direction, a second blank area 212 near the upper end, and a third blank area 213 near the lower end.
[0048] In use, the first blank area 211, the second blank area 212, and the third blank area 213 serve as spaces for the infrared emitter 20 to engage with the fixing and holding structure within the housing 10, or for subsequent welding of leads to the surface of the tubular substrate 21. This prevents wear on the printed infrared emitting coating during assembly or disassembly. Furthermore, the first blank area 211 separates the first infrared emitting coating 23 and the second infrared emitting coating 24.
[0049] Furthermore, the infrared emitter 20 also includes a first conductive coating 25 and a second conductive coating 26 formed on the tubular substrate 21 by printing or coating. These conductive coatings serve as electrodes for powering the infrared emitter 20, and after being connected to the positive and negative terminals of the battery cell 14, the interface provides power to various areas of the infrared emitter 20. Specifically, in Figure 3 As shown, the first conductive coating 25 and the second conductive coating 26 both extend in the axial direction, and a certain distance is maintained between the first conductive coating 25 and the second conductive coating 26 in the circumferential direction, forming a first blank area 211 by the distance.
[0050] In use, at least a portion of the first conductive coating 25 overlaps with the first infrared emitting coating 23 to form a conductive layer, and at least a portion of the second conductive coating 26 overlaps with the second infrared emitting coating 24 to form a conductive layer.
[0051] See Figure 4 As shown in another schematic diagram from a different perspective, the infrared emitter 20 also includes a third conductive coating 27 extending along the axial direction. This third conductive coating 27 partially overlaps with and is conductively connected to both the first infrared emitting coating 23 and the second infrared emitting coating 24. In use, the first conductive coating 25 and the third conductive coating 27 are formed on both circumferential ends of the first infrared emitting coating 23 and are conductive, thus connecting to the positive and negative electrodes of the battery cell 14 respectively, thereby supplying power to the first infrared emitting coating 23 to radiate infrared rays. Similarly, the second conductive coating 26 and the third conductive coating 27 are formed on both circumferential ends of the second infrared emitting coating 24 and are conductive, thus connecting to the positive and negative electrodes of the battery cell 14 respectively, thereby supplying power to the second infrared emitting coating 24 to radiate infrared rays.
[0052] In terms of materials, the first conductive coating 25, the second conductive coating 26 and the third conductive coating 27 are made of metals or alloys with low resistivity, such as silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium or the above metal alloys.
[0053] Further in Figure 3 and Figure 4 In the preferred embodiment shown, the first conductive coating 25, the second conductive coating 26, and the third conductive coating 27 are respectively provided with a first conductive pin 251, a second conductive pin 261, and a third conductive pin 271 that are connected to conduct electricity by means of welding or the like. Then, the first conductive coating 25, the second conductive coating 26, and the third conductive coating 27 are connected to the electrodes of the battery cell 14 through these conductive pins.
[0054] As shown above, the first infrared emitting coating 23 and the second infrared emitting coating 24 can be powered independently during use, and thus radiate infrared rays independently or simultaneously, thereby heating a portion or the entirety of the extractable material A.
[0055] See yet another embodiment. Figure 5 The infrared emitter 20a shown includes: A tubular substrate 21a, at least a portion of which is hollow forms a chamber 22a for receiving aspirable material A; and, A first infrared emitting coating 23a and a second infrared emitting coating 24a are formed on the inner surface of the tubular substrate 21a and arranged sequentially along the circumferential direction; Furthermore, to facilitate independent power supply to the first infrared emitting coating 23a and the second infrared emitting coating 24a, the inner surface of the tubular substrate 21a also has a first conductive coating 25a, a second conductive coating 26a, and a third conductive coating 27a extending in the axial direction; further according to Figure 5 As shown, the first conductive coating 25a and the third conductive coating 27a are respectively disposed on both sides of the first infrared emitting coating 23a along the circumferential direction to supply power to the first infrared emitting coating 23a. The second conductive coating 26a and the third conductive coating 27a are respectively disposed on both sides of the second infrared emitting coating 24a along the circumferential direction to supply power to the second infrared emitting coating 24a. Of course, there is a certain gap between the first conductive coating 25a and the second conductive coating 26a.
[0056] In yet another preferred embodiment, the construction of the infrared emitter 20b can be found in [reference needed]. Figure 8As shown, the outer surface of the tubular substrate 21b includes at least a first infrared emitting coating 23b, a second infrared emitting coating 24b, a third infrared emitting coating 25b, and a fourth infrared emitting coating 26b arranged sequentially and spaced apart in the circumferential direction; and a first gap 27b, a second gap 28b, and a third gap 29b located between them.
[0057] To enable independent operation, the infrared emitter 20b also includes conductive coatings formed at both ends of the tubular substrate 21b and partially overlapping them to conduct electricity. Specifically, these include a first conductive coating 231b and a second conductive coating 232b at both ends of the first infrared emitting coating 23b; a third conductive coating 241b and a fourth conductive coating 242b at both ends of the second infrared emitting coating 24b; a fifth conductive coating 251b and a sixth conductive coating 252b at both ends of the third infrared emitting coating 25b; and a seventh conductive coating 261b and an eighth conductive coating 262b at both ends of the fourth infrared emitting coating 26b. These conductive coatings can be connected to the positive and negative terminals of the battery cell 14, thereby independently supplying power to the infrared emitting coatings during implementation, and subsequently heating a portion of the extractable material A.
[0058] Or based on the above Figure 6 As shown, in other variant implementations, the first conductive coating 231b, the third conductive coating 241b, the fifth conductive coating 251b, and the seventh conductive coating 261b can be seamlessly joined to form a continuously conductive whole, which can then be integrally formed into an annular shape on the outer surface of the upper end of the tubular substrate 21b, and partially overlap with all the infrared emitting coatings for conductivity; while the second conductive coating 232b, the fourth conductive coating 242b, the sixth conductive coating 252b, and the eighth conductive coating 262b remain independent and separate, so that they can be connected to the positive and negative terminals of the battery cell 14 respectively in use, thereby independently powering the infrared emitting coatings.
[0059] In yet another preferred embodiment, the infrared emitter 20c is constructed of a thin-film material, see details below. Figure 7 As shown, the infrared emitting film 23c is an electro-induced infrared emitting film; its material can be zinc oxide film with infrared emitting function, indium tin oxide film doped with rare earth elements, graphene film, etc., and its thickness is usually about 30 to 500 nm.
[0060] To facilitate power supply to the infrared emitting film 23c, conductive coatings 241c / 242c / 243c, used as electrodes, are formed on the infrared emitting film 23c. These coatings can be made of low-resistivity metals or alloys, such as silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or alloys thereof. Furthermore, to facilitate the subsequent use of the conductive coatings 241c / 242c / 243c as electrodes and their electrical connection to the positive and negative terminals of the battery cell 14, elongated conductive leads 251c / 252c / 253c are further formed on the conductive coatings 241c / 242c / 243c by means of welding or other methods.
[0061] Further use will include the above Figure 7 The infrared emitting film 23c shown is wound around the tubular substrate 21c as follows: Figure 8 As shown, it is used to fix and support the infrared emitting film 23c. In use, the first conductive pin 251c and the second conductive pin 252c can be independently and separately connected to the positive and negative terminals of the battery cell 14, or the second conductive pin 252c and the third conductive pin 253c can be independently connected to the positive and negative terminals of the battery cell 14, so that the first region S1 or the second region S2 can be powered independently. In use, it can radiate infrared rays independently or simultaneously, thereby heating a part or the whole of the suction material A received in the internal cavity 22c of the tubular substrate 21c.
[0062] Alternatively, in yet another variant implementation, at least two such... Figure 9 The infrared emitting film 23d shown has conductive coatings 24d and conductive pins 25d at both ends. It is attached or wound around the outer surface of the tubular substrate 21 in the circumferential direction. In independent power supply, the infrared emitting film 23d is connected to the positive and negative terminals of the battery cell 14 through its respective conductive pins 25d, so that it can be powered independently without having a shared pin.
[0063] Alternatively, in a more preferred embodiment, the conductive coating of the infrared emitting film 23c / 23d can also be as follows: Figure 6 The printing is done in a circumferential manner as shown.
[0064] In addition to using the single infrared-emitting thin film material mentioned above, or in another preferred embodiment, see [reference needed]. Figure 10 The fabrication of the multilayer structure shown includes: Flexible substrate 231d and infrared emitting layer 232d formed on flexible substrate 231d; A first conductive coating 241d, a second conductive coating 242d, and a third conductive coating 243d are formed along the width direction at both ends and the center of the infrared emitting layer 232d; and a first conductive pin 251d, a second conductive pin 252d, and a third conductive pin 253d are further formed by welding or other means; thereby dividing the infrared emitting layer 232d into a first region S1 located between the first conductive pin 251d and the second conductive pin 252d, and a second region S2 located between the second conductive pin 252d and the third conductive pin 253d.
[0065] In Figure 10 In the preferred embodiment shown, the infrared emitting film 23d can have a wider variety of material choices and preparation quality. Specifically, the flexible substrate 231d serves as the substrate for subsequently loading the infrared emitting material and facilitates the subsequent preparation of flexible materials wound on the outer surface of the tubular substrate 21. The selected materials can be flexible glass, PI film, flexible ceramic paper, etc. The infrared emitting layer 232d can be formed on the surface of the flexible substrate 231d by processes such as printing or deposition. Specifically, the infrared emitting layer 232d can be obtained by spraying, or by blade coating, spin coating, roll coating, physical or chemical vapor deposition, etc., to deposit and cure the infrared emitting material on the surface of the flexible substrate 231d. In practice, the material of the infrared emitting layer 232d can include oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, Zn, etc. These metal oxides can radiate far-infrared rays with heating effect when heated to an appropriate temperature. The thickness is preferably controlled to be 30μm to 50μm.
[0066] In a further preferred embodiment, the first region S1 has an infrared emission wavelength and efficiency different from that of the second region S2. Specifically, the respirable material A contains different organic components, each with its own optimal infrared absorption wavelength; for example, the optimal infrared absorption wavelength of nicotine in respirable material A differs from that of the aerosol-forming glycerol and vegetable glycerol. Therefore, in this embodiment, it is preferable that the first region S1 and the second region S2 emit emission spectra targeting these different components, with each spectrum having a different peak wavelength range, thereby balancing the heating efficiency of the various organic components. For example... Figure 11 and Figure 12 The infrared emission spectra of the first region S1 and the second region S2, prepared from two different materials, are shown respectively when their own temperature rises to a certain temperature after power supply; from Figure 11 and Figure 12As can be seen, the emission spectra of the first region S1 and the second region S2 have different WLP (peak wavelength, the wavelength corresponding to the maximum radiant power), which can be adapted to the optimal absorption wavelength range of different organic components in the extractable material A.
[0067] In another variation, to simultaneously operate on one or more infrared emitting regions with multiple infrared emitting regions, the pins corresponding to the infrared emitting regions to be operated can be simply connected to the positive and negative terminals of cell 14. Furthermore, when the number of infrared emitting regions to be operated is large, for example... Figure 6 The infrared emitter 20b shown has four infrared emission regions. To reduce the need for independent connection of each region, a preferred embodiment also proposes an infrared emitter 20e, see [link to previous document]. Figure 13 As shown, by forming an infrared emitting coating 23e on the outer surface of the tubular substrate 21e, and printing a first conductive coating 241e, a second conductive coating 242e, a third conductive coating 243e, and a fourth conductive coating 244e extending in the axial direction, the infrared emitting coating 23e is further divided into... Figure 13 The first launch area S1, the second launch area S2, the third launch area S3, and the fourth launch area S4 are shown in the diagram.
[0068] In operation control, the corresponding approach can be adopted. Figure 14 As shown, the first conductive coating 241e, the second conductive coating 242e, the third conductive coating 243e, and the fourth conductive coating 244e are connected to a bridge or full-bridge circuit composed of four N-MOS transistors via conductive pins. Of course, a current-limiting protection resistor R is also added in the implementation. Specifically, according to... Figure 14 In the bridge structure shown, one connection terminal of the first conductive coating 241e is connected to the positive terminal Vin+ of the battery cell 14, serving as the voltage input terminal, while one connection terminal of the third conductive coating 243e is grounded. During the control process, when Q1 and Q4 are simultaneously turned on and Q2 and Q3 are turned off by the MCU controller, a voltage input is formed. Figure 14When the current flows in the direction indicated by arrow r1, the first emitting region S1, powered by the first conductive coating 241e and the second conductive coating 242e, and the third emitting region S3, powered by the third conductive coating 243e and the fourth conductive coating 244e, are operational. When the bridge's on / off state changes to Q2 and Q3 being simultaneously on and Q1 and Q4 being off, a current flows in the direction indicated by arrow r2. At this time, the fourth emitting region S4, powered by the first conductive coating 241e and the fourth conductive coating 244e, and the third emitting region S3, powered by the second conductive coating 242e and the third conductive coating 243e, are operational. By constructing the bridge as described above, operations are performed on each region to achieve radiation and partial heating of different regions of the extractable material A. Of course, based on the above implementation, to ensure the bridge can be constructed, multiple conductive pins may need to be soldered onto the conductive coatings 241e / 242e / 243e / 244e to ensure access. Figure 14 The bridge shown.
[0069] In another variation of the invention, the different infrared emitting regions may be formed separately on separate substrates; see also [specific embodiment details omitted]. Figure 15 As shown, the infrared emitter 20f may include: At least two discrete substrates 21f are arranged around the chamber 22f, for example Figure 15 The preferred number shown is 4; Each discrete substrate 21f has an infrared emitting coating or a rolled infrared emitting film 23f; and each can be independently activated by the independent control method described above, thereby heating different areas of the suction material A received in the chamber 22f.
[0070] At the same time, it can be based on Figure 15 In the embodiment shown, the substrate 21f has an arc shape that curves outward radially along the chamber 22f.
[0071] Or, in the optional implementation of changes, such as Figure 16 As shown, the infrared emitter 20g may include: At least two discrete sheet-like substrates 21g are arranged around the chamber 22g, and each discrete sheet-like substrate 21g has an infrared emitting coating 23g formed on it, thereby heating different areas of the suction material A received in the chamber 22g.
[0072] It should be noted that the preferred embodiments of the present invention are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. An aerosol generating device for heating a suction-capable material to generate an inhalable aerosol; characterized in that, include: A chamber for receiving aspirable material; An infrared emitter is configured to radiate infrared rays into the chamber, thereby heating the suction material. The infrared emitter includes: A matrix extending axially along the chamber and at least partially surrounding or defining the chamber; A first infrared emitting layer and a second infrared emitting layer are arranged at intervals along the circumference of the substrate or are attached to the outer surface of the substrate; the first and second infrared emitting layers are configured to be independently activated so as to independently radiate infrared rays from the outside of the chamber into the chamber to heat different portions of the aspirable material.
2. The aerosol generating device as described in claim 1, characterized in that, The first infrared emitting layer and the second infrared emitting layer are separate from each other.
3. The aerosol generating device as described in claim 1 or 2, characterized in that, The first infrared emitting layer is a coating formed on the substrate or a thin film bonded to the substrate; And / or, the second infrared emitting layer is a coating formed on the substrate or a thin film bonded to the substrate.
4. The aerosol generating device as described in claim 3, characterized in that, The substrate is configured as a tube extending axially along the chamber and surrounding the chamber; The first infrared emitting layer is a thin film wound around the outer surface of the substrate; and / or, the second infrared emitting layer is a thin film wound around the outer surface of the substrate.
5. The aerosol generating device as described in claim 1 or 2, characterized in that, The first infrared emitting layer and the second infrared emitting layer do not completely cover the surface of the substrate, and a blank area is formed on the surface of the substrate between the first infrared emitting layer and the second infrared emitting layer along the circumferential direction of the substrate.
6. The aerosol generating device as described in claim 1 or 2, characterized in that, The infrared emitter also includes conductive elements for supplying power to the first and second infrared emitting layers.
7. The aerosol generating device as described in claim 6, characterized in that, The conductive element is a conductive coating formed on the substrate.
8. The aerosol generating device as described in claim 7, characterized in that, The conductive coating overlaps at least partially with the first infrared emitting layer and the second infrared emitting layer, thereby forming a conductive connection with the first infrared emitting layer and the second infrared emitting layer.
9. The aerosol generating device as described in claim 6, characterized in that, The conductive element is configured to extend along the axial direction of the chamber.
10. The aerosol generating device as described in claim 6, characterized in that, The conductive element includes a first conductive element, a second conductive element, and a third conductive element arranged at intervals along the circumferential direction of the chamber. The first infrared emitting layer is coupled between the first conductive element and the second conductive element to radiate infrared rays into the chamber when the first conductive element and the second conductive element are energized. The second infrared emitting layer is coupled between the second conductive element and the third conductive element to radiate infrared rays into the chamber when the second conductive element and the third conductive element are energized.
11. The aerosol generating device as described in claim 1 or 2, characterized in that, The first infrared emitting layer and the second infrared emitting layer are configured to be activated alternately.
12. The aerosol generating device as described in claim 1 or 2, characterized in that, The first infrared emitting layer and the second infrared emitting layer are formed by separating different parts of the same infrared emitting layer.
13. An aerosol generating device for heating a suction-capable material to generate an inhalable aerosol; characterized in that, include: A chamber for receiving aspirable material; An infrared emitter is configured to radiate infrared rays into the chamber to heat the suction material; the infrared emitter includes: A substrate extending axially along the chamber and at least partially surrounding or defining the chamber; the substrate includes a first end and a second end opposite each other in the axial direction of the chamber; An infrared emitting layer is formed or bonded to the outer surface of the substrate; the infrared emitting layer radiates infrared rays from the outside of the substrate into the chamber to heat the suctionable material; The outer surface of the substrate is not completely covered by the infrared emitting layer, and there are blank areas on the outer surface of the substrate at both the first end and the second end that are not covered by the infrared emitting layer; the aerosol generating device fixes and holds the infrared emitter by combining with the blank areas.
14. An infrared emitter for an aerosol generating device, characterized in that, The infrared emitter includes a tubular substrate and a first infrared emitting layer and a second infrared emitting layer arranged sequentially on the outer surface of the substrate along the circumferential direction; the first infrared emitting region and the second infrared emitting region can be activated independently, thereby independently radiating infrared rays to heat different parts of the absorbable material.