Aerosol generating device and heater for aerosol generating device

Abstract

The utility model provides an aerosol generating device and a heater for the aerosol generating device. The heater is configured to receive an aerosol generating product and heat the aerosol generating product to generate aerosol. Comprising at least one heater for heating at least part of an aerosol-generating article received in an aerosol-generating device; the at least one heater is configured to heat at least a portion of the aerosol-generating article by emitting a laser light. According to the aerosol generating device, the laser is emitted to the aerosol generating product through the at least one heater, and then the aerosol generating product is heated.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating device and a heater for the aerosol generating device. Background Art

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] An example of such a product is an aerosol generating device that releases compounds by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. U.S. Pat. No. 5,479,948A proposes an aerosol generating device that gradually transmits a portion or position of an aerosol generating substrate to a heater for heating by transmitting a tape-like aerosol generating substrate; such an aerosol generating device transmits and heats a tape-like aerosol generating substrate to allow a consistent aerosol delivery amount to be accurately provided to the consumer in each puff. Utility Model Content

[0004] One embodiment of the present application provides an aerosol generating device, which is configured to receive an aerosol generating article and heat it to generate an aerosol; comprising:

[0005] At least one or more heaters are used to heat at least a portion of the aerosol-generating article received in the aerosol-generating device; the at least one heater is configured to heat at least a portion of the aerosol-generating article by emitting laser light.

[0006] In some embodiments, the at least one heater is configured to heat at least a portion of the aerosol-generating article by emitting laser light having a wavelength of 760 nm to 1310 nm.

[0007] In some embodiments, the at least one heater is configured in a substantially sheet-like shape;

[0008] The at least one heater is configured to emit laser light in a direction perpendicular to the heater.

[0009] In some embodiments, the at least one heater is configured to have a length or width of 5 to 15 mm; and / or, the at least one heater is configured to have a thickness of 1 to 4 mm.

[0010] In some embodiments, the diameter of the spot of the laser emitted by the at least one heater is between 2.5 mm and 8 mm.

[0011] In some embodiments, the spot of the laser emitted by the at least one heater has an approximately M-shaped light intensity distribution in the radial direction;

[0012] Alternatively, the spot of the laser emitted by the at least one heater includes: a central area, and a peripheral area located between the central area and the outermost edge of the spot; the light intensity of the central area is smaller than the light intensity of the peripheral area, and greater than the light intensity of the outermost edge of the spot.

[0013] In some embodiments, the at least one heater comprises a plurality of non-linearly arranged laser emitters;

[0014] And / or, the at least one heater comprises at least three laser emitters arranged in an array.

[0015] In some embodiments, it also includes:

[0016] The circuit board is provided with a circuit; the circuit is configured to control the at least one heater to emit laser light for heating for a time shorter than a maximum predetermined time in each heating.

[0017] In some embodiments, it also includes:

[0018] A circuit board having a circuit arranged thereon;

[0019] The circuit is configured to allow the at least one heater to start heating only when the time since the last heating of the at least one heater is greater than a minimum predetermined time; and / or, the circuit is configured to prevent the at least one heater from starting heating when the time since the last heating of the at least one heater is less than a minimum predetermined time.

[0020] In some embodiments, it also includes:

[0021] A circuit board having a circuit arranged thereon;

[0022] The at least one heater comprises a laser emitter for emitting laser light;

[0023] The circuit is configured to allow the at least one heater to initiate heating only when the laser emitter is cooled below a predetermined temperature.

[0024] In some embodiments, the heater includes a plurality of laser emitters arranged at intervals;

[0025] The plurality of laser emitters are configured to be able to start working only simultaneously; or, any one of the plurality of laser emitters cannot be started working individually.

[0026] In some embodiments, the heater comprises at least one planar laser emitter.

[0027] In some embodiments, the heater comprises:

[0028] an outer body defining an outer surface of the heater; a sealed cavity defined within the outer body;

[0029] At least one or more laser emitters, located in the cavity, for emitting laser light;

[0030] The outer body is only partially transparent to laser light, thereby allowing laser light emitted by the laser emitter to pass through the outer body to the outside of the heater.

[0031] In some embodiments, the outer body comprises:

[0032] a support layer having a first side and a second side opposite to each other;

[0033] a substantially annular fence disposed on a first side of the support layer and at least partially surrounding or defining the cavity;

[0034] A light-transmitting cover through which laser light can pass closes or seals the cavity; the laser light emitted by the laser emitter is emitted to the outside of the heater through the light-transmitting cover.

[0035] In some embodiments, the at least one or more laser emitters are bonded to the support layer and supported by the support layer;

[0036] and / or, the support layer is light-impermeable;

[0037] and / or, the thermal conductivity of the support layer is greater than 80 W / (m·K);

[0038] And / or, the support layer has a thickness of 0.3 to 1.5 mm;

[0039] And / or, the support layer includes aluminum nitride ceramic.

[0040] In some embodiments, the light-transmitting cover is planar; or, at least a portion of the light-transmitting cover is curved.

[0041] In some embodiments, the thermal conductivity of the fence is greater than 200 W / (m·K);

[0042] And / or, the fence is made of metal or alloy material, so that the inner surface of the fence is reflective;

[0043] and / or, the fence is non-contact with the at least one or more laser emitters;

[0044] In some embodiments, the at least one or more laser emitters are vertical cavity surface emitting lasers;

[0045] And / or, the at least one or more laser emitters are semiconductor lasers.

[0046] In some embodiments, the laser emitter has a first electrode layer and a second electrode layer;

[0047] The heater further comprises:

[0048] A first electrical connection area and a second electrical connection area are arranged at intervals on the surface of the second side of the supporting layer; the first electrical connection area is electrically connected to the first electrode layer of the laser emitter, and the second electrical connection area is electrically connected to the second electrode layer of the laser emitter, so that the laser emitter is powered by the first electrical connection area and the second electrical connection area during use.

[0049] In some embodiments, the heater is further provided with:

[0050] At least one first indicator mark is used to provide an indication associated with the electrode polarity of the first electrical connection area and the second electrical connection area.

[0051] In some embodiments, it also includes:

[0052] A base supports or holds the heater.

[0053] In some embodiments, the base is in planar contact or combination with the heater;

[0054] And / or, the base is in contact with the heater and is heat-conductive, so as to promote heat dissipation of the heater;

[0055] and / or, the thermal conductivity of the base is greater than 100 W / (m·K);

[0056] and / or, the heater and the base are configured to be substantially sheet-like, and the area of ​​the base is at least 5 times the area of ​​the heater;

[0057] And / or, at least one or more notches or holes are arranged on the base, and the aerosol generating device holds or fixes the base through the notches or holes.

[0058] In some embodiments, an electrical connection area is arranged on the heater, and an electrode area electrically connected to the electrical connection area is arranged on the base;

[0059] The circuit board is operably and electrically connected to the electrode area of ​​the base to supply power to the heater.

[0060] In some embodiments, a portion of the surface of the electrode region is covered by an insulating layer, and has a first contact portion and a second contact portion that are not covered by the insulating layer; the first contact portion and the second contact portion are spaced apart;

[0061] The electrical connection area of ​​the heater covers and is electrically connected to the first contact part, and the circuit board is electrically connected to the second contact part.

[0062] In some embodiments, the electrode region includes a first electrode region and a second electrode region;

[0063] The base is also provided with:

[0064] At least one second indicator mark is used to provide an indication associated with the electrode polarity of the first electrode area and the second electrode area.

[0065] In some embodiments, it also includes:

[0066] Battery cells;

[0067] A circuit board arranged with a circuit and configured to control the battery cell to supply power to the heater;

[0068] The heater is securely mounted or arranged on the circuit board, or the heater is separate from the circuit board.

[0069] Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:

[0070] a support layer having a first side and a second side opposite to each other;

[0071] a substantially annular fence disposed on a first side of the support layer and at least partially surrounding or defining the cavity;

[0072] At least one or more laser emitters, located in the cavity, for emitting laser light;

[0073] A laser-transmissive light-transmitting cover is combined with the fence and closes or seals the cavity.

[0074] Another embodiment of the present application further provides a heater for an aerosol generating device, comprising:

[0075] an outer body defining an outer surface of the heater; a sealed cavity defined within the outer body;

[0076] At least one or more laser emitters, located in the cavity, for emitting laser light;

[0077] The outer body is only partially transparent to laser light, thereby allowing the laser light emitted by the laser emitter to pass through the outer body to the outside of the heater in a direction perpendicular to the heater.

[0078] The above aerosol generating device emits laser light to the aerosol generating product through at least one heater, thereby heating the aerosol generating product. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0080] Figure 1 is a schematic diagram of an aerosol generating system provided by an embodiment;

[0081] Figure 2 is a schematic structural diagram of a heater of an embodiment from one perspective;

[0082] Figure 3 yes Figure 2 A schematic diagram of the structure of the central heater from another perspective;

[0083] Figure 4 yes Figure 2 A schematic cross-sectional view of a central heater from one perspective;

[0084] Figure 5 yes Figure 2 Structural schematic diagram of the surface morphology of the laser emitter;

[0085] Figure 6 yes Figure 2 A cross-sectional schematic diagram of a laser transmitter from one perspective;

[0086] Figure 7 is a schematic diagram of a base for supporting or holding a heater according to an embodiment;

[0087] Figure 8 is a schematic diagram of a laser spot emitted by a heater of an embodiment;

[0088] Fig. 9 yes Figure 8 Schematic diagram of the light intensity distribution of the laser spot in the radial direction;

[0089] Fig.10 is a schematic diagram of a substrate portion after being heated by a laser of a heater in one embodiment;

[0090] Fig.11 is a schematic diagram of an aerosol generating system provided by yet another embodiment. DETAILED DESCRIPTION

[0091] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

[0092] One embodiment of the present application provides an aerosol generating system that generates aerosol by heating rather than burning. Figure 1 As shown, the aerosol generating system comprises:

[0093] The aerosol-generating article 100 is, for example, a tobacco or non-tobacco product, and the aerosol-generating device 300 is used to volatilize or release at least one component of the aerosol-generating article 100 by heating to form an aerosol for inhalation.

[0094] In an optional embodiment, the aerosol generating article 100 preferably uses a tobacco-containing material that releases volatile compounds from the substrate when heated; or it can also be a non-tobacco material that can be heated and suitable for electric heating and smoking. The aerosol generating article 100 preferably uses a solid substrate, which can include one or more of powder, particles, fragments, strips, or flakes of one or more of herb leaves, dried flowers, herbal crops that can volatilize aromas, tobacco leaves, homogenized tobacco, and expanded tobacco; or, the solid substrate can contain additional tobacco or non-tobacco volatile aroma compounds to be released when the substrate is heated.

[0095] Figure 1 A schematic diagram of an aerosol generating system according to an embodiment is shown; Figure 1 As shown, the aerosol generating system comprises:

[0096] an aerosol generating article 100;

[0097] The aerosol generating device 300 is used to receive the aerosol generating product 100 and heat it to generate an aerosol for the user to inhale.

[0098] according to Figure 1 As shown, the aerosol generating device 300 comprises:

[0099] A rechargeable battery cell 310 for power supply;

[0100] The circuit board 320 is, for example, a PCB board or an FPC board, on which a circuit is arranged;

[0101] In use, the aerosol generating article 100 can be removably received in the receiving cavity 340 through the opening on the surface of the aerosol generating device 300, such as Figure 1 As shown by the middle arrow P1;

[0102] a heating mechanism 330 surrounding, defining or adjacent to the receiving cavity 340 for heating at least a portion of the aerosol generating article 100 received in the receiving cavity 340 to generate an aerosol;

[0103] The nozzle 350 is in fluid communication with the receiving chamber 340 , so as to allow a user to inhale the aerosol generated by the aerosol generating article 100 through the nozzle 350 .

[0104] exist Figure 1 As shown in the figure, the heating mechanism 330 includes multiple or several heaters 30; and, the several heaters 30 may be arranged on the same side of the receiving cavity 340; and when the aerosol generating product 100 is received in the receiving cavity 340, the several heaters 30 are all facing or adjacent to the aerosol generating product 100.

[0105] according to Figure 1 In the illustrated embodiment, several or more heaters 30 are discretely arranged; for example, Figure 1 In the embodiment, they are arranged in an array. Accordingly, the aerosol generating article 100 includes a plurality of substrate portions 121 that can be heated to generate aerosols; when the aerosol generating article 100 is received in the receiving cavity 340, the substrate portions 121 can be heated by the corresponding heaters 30 to generate aerosols individually. For example, Figure 1 In the embodiment, the continuously arranged matrix parts 121 may be approximately in a rectangular shape.

[0106] In some embodiments, several or more heaters 30 are arranged to be independently connected to the circuit board 320, and then independently powered by the circuit board 320, so as to independently perform heating. For example, in some embodiments, several or more heaters 30 are independently startable; so that each heater 30 can only heat the corresponding substrate portion 121 individually.

[0107] In some embodiments, the circuit board 320 is configured to control several or more heaters 30 to be heated one after another in a predetermined order. In some embodiments, the circuit board 320 is configured to control several or more heaters 30 to not heat at the same time; so that, for example, when the user takes a puff, the circuit board 320 only controls one heater 30 to heat and generate an aerosol that satisfies one puff.

[0108] In some embodiments, in each puff, the circuit board 320 controls several heaters 30 to independently heat the matrix portion of the aerosol-generating article 100 to produce a total amount of particulate matter (TPM) of at least 1.5 mg, at least 1.7 mg, at least 2.0 mg, at least 2.5 mg, at least 3.0 mg, about 1.0 mg to about 5.0 mg, about 1.5 mg to about 4.0 mg, about 2.0 mg to about 4.0 mg or about 2.0 mg to about 3.0 mg, at least 3 mg to about 7 mg, about 4 mg to about 8 mg, and about 5 mg to about 10 mg.

[0109] In some embodiments, the circuit board 320 controls the predetermined order of the plurality of heaters 30, which are started one after another in sequence. Specifically, for example: when the user takes the first puff, the circuit board 320 provides power to the first heater 30 closest to the left for heating, generating an aerosol for one puff; when the user takes the next puff, the circuit board 320 provides power to the second heater 30 closest to the left for heating, generating an aerosol for one puff; and this is performed sequentially until all the heaters 30 are heated, the matrix part 121 of the aerosol generating product 100 has been puffed, and the user is prompted to replace the new aerosol generating product 100. In the above embodiments, starting the heaters 30 individually in sequence instead of starting the heating at the same time means minimizing the unnecessary consumption of the aerosol generating matrix and reducing the waste of energy. Or in some other embodiments, the order in which the plurality of heaters 30 are started in sequence in a predetermined order is performed along the array arrangement direction.

[0110] Or in some other embodiments, the circuit board 320 controls the heaters 30 to start up individually in sequence without intervals along the arrangement direction of the heaters 30. Or in some other embodiments, the circuit board 320 controls the heaters 30 to start up individually in sequence without intervals or in jumps.

[0111] For example, in some embodiments, several or more heaters 30 can be energized sequentially, that is, they are energized once each time the user puffs, so that aerosol is generated consistently based on each puff. Accordingly, in some embodiments, each user's puffing action can be sensed by an airflow sensor such as a microphone or a MEMS sensor; the circuit board 320 sequentially energizes several or more heaters 30 based on the sensing results of the airflow sensor. In a preferred embodiment, the circuit board 320 controls several heaters 30 to start sequentially in a predetermined order, which is performed according to the user's puffing action. And in some other variant embodiments, the circuit board 320 controls the sequential activation of several heaters 30, which is performed according to a predetermined interval time; for example, the predetermined interval is between about 30 seconds and 300 seconds.

[0112] For example, in some other embodiments, the circuit board 320 controls the plurality of heaters 30 to start in sequence according to a predetermined order based on the operation input signal on the above aerosol generating device 300. For example, the aerosol generating device 300 is provided with input elements, which may include switch buttons, touch operation screens, knobs and other input elements, which can be operated by the user to generate input signals; the circuit board 320 controls the plurality of heaters 30 to start in sequence according to a predetermined order based on the operation input signal formed by the user operating the input element.

[0113] In some embodiments, the circuit board 320 controls a plurality of heaters 30 to start sequentially in a predetermined order, which is based on the removal or replacement of the aerosol generating article 100. Specifically, in some embodiments, after the circuit board 320 controls the above heaters 30 to start sequentially, the user is prompted that the aerosol generating article 100 has been consumed, and the user is prompted to replace the aerosol generating article 100 with a new one.

[0114] And in some embodiments, when it is detected that a new aerosol generating article 100 is received again in the receiving chamber 340 of the aerosol generating device 300, the heater 30 is restarted in sequence according to a predetermined order. The detection of the user replacing a new aerosol generating article 100 can be detected by a sensor; for example, the aerosol generating device is provided with a light sensor or a pressure sensor, etc., for sensing the aerosol generating article 100 being combined with or removed from the receiving chamber 340, and determining the user's replacement or consumption of the aerosol generating article 100 according to the combination and removal.

[0115] In some embodiments, the circuit board 320 controls the heaters 30 to start sequentially, which is cyclic. For example, in some embodiments, the cycle is performed according to a predetermined number of times; for example, 10 times. Specifically, when the number of times the heater 30 is started, and / or the number of times the user puffs, and / or the number of times the input signal received by the input element reaches a predetermined number of times, a new cycle is entered to control the heaters 30 to start sequentially.

[0116] As another example, in some embodiments, the cycle is performed according to the removal or replacement of the aerosol-generating article 100 .

[0117] In some embodiments, the circuit board 320 controls the plurality of heaters 30 to heat according to the same heating curve or heating temperature. For example, in some specific embodiments, the circuit board 320 controls the heaters 30 to heat according to a temperature of 300°C.

[0118] Or in some other embodiments, the circuit board 320 controls the heating of the plurality of heaters 30 to be performed according to different heating curves or heating temperatures. For example, in some embodiments, the circuit board 320 controls the heating temperatures of the plurality of heaters 30 to increase or decrease in sequence along the heating start sequence.

[0119] For example, in some embodiments, the circuit board 220 is configured to sequentially activate several or more heaters 30 so that no two spatially adjacent heaters 30 are activated consecutively. Advantageously, this can minimize the preheating of the heaters 30, which can reduce the possibility of thermal decomposition of adjacent multiple substrate portions 121.

[0120] In some embodiments, the heater 30 is a laser heater; for example, the heater 30 heats the aerosol generating article 100 by emitting an infrared laser. Alternatively, in some other variant embodiments, the several or more heaters 30 may be heated by any suitable method. For example, at least one or all of the several or more heaters 30 may include an infrared heater, or a magnetic field generator for induction heating, or a resistive heater, or a combination thereof.

[0121] In some embodiments, the heater 30 is configured to emit laser light in the near infrared band, thereby heating the aerosol-generating article 100. In some embodiments, the heater 30 is configured to emit laser light with a wavelength of 760 nm to 1310 nm, thereby heating the aerosol-generating article 100. Or more preferably, the heater 30 is configured to emit laser light with a wavelength of 850 nm to 980 nm.

[0122] In some embodiments, the heater 30 is arranged in a substantially sheet-like shape; the heater 30 is configured in a sheet-like shape, which can be characterized as the length and / or width of the heater 30 being greater than its thickness; or the length and / or width of the heater 30 being greater than 2 times the thickness. For example, in some specific embodiments, the heater 30 is configured to have a length of about 5 to 15 mm; the heater 30 is configured to have a width of about 5 to 15 mm; and the heater 30 is configured to have a thickness of about 1 to 4 mm.

[0123] In some embodiments, the sheet-shaped heater 30 is configured to emit laser light in a direction perpendicular to the heater 30. In some specific embodiments, the diameter of the laser light spot emitted by the sheet-shaped heater 30 is between 2.5 mm and 8 mm. In some specific embodiments, the diameter of the laser light spot emitted by the sheet-shaped heater 30 is between 3.5 mm and 6 mm.

[0124] Figures 2 to 4 A schematic diagram of the structure of a heater 30 according to an embodiment is shown; wherein, Figure 2is a schematic diagram of a top view of the heater 30, Figure 3 is a schematic diagram of a heater 30 viewed from above. In this embodiment, the heater 30 includes:

[0125] The outer body defines the outer surface of the heater 30; a cavity 312 is formed or defined in the outer body; at least one or more laser emitters are arranged in the cavity 312. The outer body is only partially light-transmissive, specifically laser-transmissive, so that the laser emitted by the laser emitter is emitted only on the light-transmissive portion. Specifically, the heater 30 includes:

[0126] The electrically insulating support layer 32 is configured in a sheet shape; the support layer 32 is made of an electrically insulating rigid material, such as a polymer plastic or ceramic material that can withstand a temperature of at least 250° C.; the support layer 32 has a first side and a second side opposite to each other in a thickness direction;

[0127] A substantially annular fence 31 is arranged on a first side of the support layer 32 and surrounds or defines a sealed cavity 312 on the first side of the support layer 32; a step 311 is arranged on the fence 31;

[0128] The light-transmitting cover 313 is combined with the fence 31 and closes and seals the cavity 312; specifically, the light-transmitting cover 313 is assembled against the step 311 of the fence 31 and seals the cavity 312;

[0129] At least one laser emitter, such as laser emitter 361 , laser emitter 362 , laser emitter 363 , and laser emitter 364 , is packaged in cavity 312 for emitting laser light.

[0130] In this embodiment, the outer body of the heater 30 is defined by the support layer 32 , the fence 31 and the light-transmitting cover 313 .

[0131] In some embodiments, the support layer 32 is opaque. In some embodiments, the thermal conductivity of the support layer 32 is greater than 30 W / (m·K); in some embodiments, the thermal conductivity of the support layer 32 is greater than 80 W / (m·K). In some optional embodiments, the thermal conductivity of the support layer 32 is between 130 and 400 W / (m·K). In some specific embodiments, the thermal conductivity of the support layer 32 is between 170 and 320 W / (m·K). In some embodiments, the support layer 32 includes or is an aluminum nitride ceramic having the above thermal conductivity properties. In some embodiments, the support layer 32 has a thickness of 0.3 to 1.5 mm.

[0132] In some embodiments, there is a vacuum in the cavity 312. For example, in some specific embodiments, the pressure in the cavity 312 is less than 0.85 atm.

[0133] In some embodiments, the light-transmitting cover 313 can be made of a high-temperature resistant and light-transmitting material such as quartz, glass, ceramic or mica; preferably, a transparent material. For example, the light-transmitting cover 313 made of quartz has a transmittance of more than 90% to the laser emitted by the laser emitter; in a more preferred embodiment, the light-transmitting cover 313 made of high-purity quartz has a transmittance of more than 95% to the laser emitted by the laser emitter. The light-transmitting cover 313 is transparent.

[0134] exist Figures 2 to 4 In some embodiments, the light-transmitting cover 313 is flat; or the light-transmitting cover 313 is sheet-shaped. In some other embodiments, the light-transmitting cover 313 is in a curved arc shape, which is beneficial for expanding or converging the laser spot. For example, in some embodiments, the light-transmitting cover 313 is in an arc shape that is bent in a direction away from the laser emitter / cavity 312, so that the surface of the light-transmitting cover 313 away from the laser emitter / cavity 312 is a convex arc surface. Or in some other variant embodiments, the light-transmitting cover 313 is in an arc shape that is bent in a direction toward the laser emitter / cavity 312, so that the surface of the light-transmitting cover 313 away from the laser emitter / cavity 312 is a concave arc surface.

[0135] In some embodiments, the fence 31 is rigid. In some embodiments, the thermal conductivity of the fence 31 is greater than 200 W / (m·K). In some embodiments, the fence 31 is made of metal or alloy, so that it is advantageous to provide light reflection by the inner surface of the fence 31 while being opaque. In some specific embodiments, the fence 31 includes metals such as gold, silver, copper, aluminum, or alloys thereof. In some specific embodiments, the thermal conductivity of the fence 31 made of metallic copper is about 400 W / (m·K).

[0136] exist Figures 2 to 4 In the illustrated embodiment, the heater 30 includes four laser emitters arranged in an array, namely, laser emitter 361, laser emitter 362, laser emitter 363, and laser emitter 364. The array arrangement makes it possible to make the light intensity of the lasers emitted by them in the central area surrounded by them relatively small, thereby finally forming Figure 8 and Fig. 9 In some embodiments, multiple laser emitters are arranged in a non-linear or linear sequence to avoid forming an approximately linear laser spot when they work simultaneously. In some embodiments, multiple laser emitters are arranged to be able to start working only simultaneously, but not individually.

[0137] For example, Figure 8FIG. 1 is a schematic diagram of a laser spot emitted by a heater 30 having four laser emitters arranged in an array in one embodiment; the light intensity in the central area is less than the light intensity in the peripheral area surrounding the center. More specifically, the light intensity of the laser spot emitted by the heater 30 is distributed in the radial direction as shown in FIG. Fig. 9 As shown in , the light intensity distribution in the radial direction is roughly an M-shaped shape, rather than a conventional Gaussian distribution laser spot. Fig. 9 The light intensity at the outermost edge of the laser spot is the lowest, lower than the central area. The usual Gaussian distribution of the laser spot is that the light intensity in the central area is the highest and gradually decreases radially outward.

[0138] During the heating process, the energy of the outermost edge of the laser is relatively small, which can maximally prevent the heat of the substrate portion 121 of the aerosol generating article 100 heated by the laser from diffusing to other adjacent substrate portions 121, thereby facilitating that each heating is suitable for heating only one substrate portion 121 to generate an aerosol for one inhalation. Fig.10 FIG. 1 shows a schematic diagram of the carbonization effect of the surface of the substrate portion 121 after a substrate portion 121 of the aerosol generating article 100 is heated by the heater 30 having the above M-shaped light spot in one embodiment; Fig.10 It can be seen that the outermost edge part is basically not carbonized; the degree of pyrolysis carbonization in the central area is less than that in the peripheral area.

[0139] Or in some other variations, the heater 30 has at least three laser emitters; the three laser emitters can be arranged in a triangle or a triangular array to produce a laser beam having a wavelength of about Fig. 9 When the heater 30 has a larger number of laser emitters, they can be arranged in an array.

[0140] Or in some other variations of the embodiments, each of the multiple laser emitters is independently operably electrically connected to the circuit board 320; in the embodiments, each or at least one of the multiple laser emitters can be independently started to work.

[0141] In some embodiments, at least one or more laser emitters are substantially planar. For example, in some embodiments, at least one or more laser emitters have a length and / or width of approximately 1-4 mm, and a thickness of less than 1 mm.

[0142] In some embodiments, at least one or more laser emitters are vertical cavity surface emitting lasers (VCSELs). Figure 5As shown, the surface of the laser emitter 361 facing the light-transmitting cover 313 is provided with a plurality of light-emitting holes 360 for emitting laser light, so that the laser light is emitted toward the light-transmitting cover 313. The plurality of light-emitting holes 360 are arranged in an array. In some embodiments, the aperture of the light-emitting holes 360 is less than 3 μm.

[0143] In some embodiments, at least one or more laser emitters are semiconductor lasers; semiconductor lasers are lasers that use semiconductor materials as working materials, inject carriers into semiconductor PN junctions, and thus generate a large number of electrons and holes that recombine to form stimulated radiation. Alternatively, at least one or more laser emitters are semiconductor laser chips.

[0144] Or in some other variations, at least one or more laser emitters are laser diodes, helium-neon lasers, and the like.

[0145] For example Figure 6 A partial cross-sectional schematic diagram of a laser emitter 361 in an embodiment is shown; in this embodiment, the laser emitter 361 includes several layers of semiconductor thin films formed sequentially by epitaxial process on a substrate 3611. The epitaxial process is a term in the field of chip preparation, which refers to the process of growing a completely ordered semiconductor thin film on a substrate.

[0146] Specifically, the laser transmitter 361 includes:

[0147] An electrically insulating rigid substrate 3611, such as a gallium arsenide (GaAs) substrate;

[0148] An N-electrode 3612 , a multi-layer N-type semiconductor layer 3613 , a multi-layer active layer 3614 , a multi-layer P-type semiconductor layer 3615 and a P-electrode 3616 are sequentially formed on a substrate 3611 .

[0149] In the semiconductor laser emitter 361 having the above structure, when a forward voltage is applied through the P electrode 3616, holes in the P-type semiconductor layer 3615 diffuse into the active layer 3614, and electrons in the N-type semiconductor layer 3613 diffuse into the active layer 3614. The electrons and holes entering the active layer 3614 are confined in the active layer 3614 due to the heterojunction barrier, thus forming a population inversion distribution. These electrons with population inversion distribution in the active layer 3614 will generate spontaneous radiation light when they are recombined with holes through transition. At the same time, the multiple layers of N-type semiconductor layers 3613 and P-type semiconductor layers 3615 provide reciprocating reflection and resonance amplification of the radiation light on both sides of the active layer 3614, and finally form stimulated radiation amplification light, i.e., laser, and emit from the light exit hole 360, as shown in FIG. Figure 6 As shown by the arrow R11.

[0150] In some embodiments, the P-type semiconductor layer 3615 and / or the N-type semiconductor layer 3613 are composite layers. The multilayer P-type semiconductor layer 3615 and / or the multilayer N-type semiconductor layer 3613 are generally composed of 20 to 40 pairs of semiconductor material thin films. In use, the multilayer P-type semiconductor layer 3615 and / or the multilayer N-type semiconductor layer 3613 provide Bragg reflectors (DBRs) on both sides of the active layer 3614. Alternatively, the multilayer P-type semiconductor layer 3615 is referred to as a P-DBR, and the multilayer N-type semiconductor layer 3613 is referred to as an N-DBR. For example, in some embodiments, the P-type semiconductor layer 3615 includes alternating P-type doped low refractive index layers and high refractive index layers, such as alternating P-type doped GaAs layers and AlGaAs layers. For example, in some embodiments, the N-type semiconductor layer 3613 includes alternating N-type doped high refractive index layers and low refractive index layers, such as alternating N-type doped GaAs layers and AlGaAs layers.

[0151] In some embodiments, the P electrode 3616 and / or the N electrode 3612 include gold, silver, copper or alloys thereof. For example, in some specific embodiments, the P electrode 3616 and / or the N electrode 3612 is gold. The thickness of the P electrode 3616 and / or the N electrode 3612 is about 1-10 μm.

[0152] according to Figures 2 to 4 As shown, in order to facilitate the heater 30 to simultaneously control the operation of multiple laser emitters; the heater 30 also includes:

[0153] A first conductive region 331 , a second conductive region 332 , and a third conductive region 333 are formed on a first side surface of the support layer 32 .

[0154] In some embodiments, the first conductive region 331, the second conductive region 332, and the third conductive region 333 are formed or defined by a coating of a conductive material sprayed or deposited or coated on the first side surface of the support layer 32. In some embodiments, the conductive material forming the first conductive region 331, the second conductive region 332, and the third conductive region 333 is gold, silver, or copper, etc., and has a thickness of about 9 μm.

[0155] In some embodiments, the first conductive region 331 , the second conductive region 332 , and the third conductive region 333 are located in the cavity 312 ; and the first conductive region 331 , the second conductive region 332 , and the third conductive region 333 are non-contacting or non-connected to the fence 31 .

[0156] In some embodiments, the first conductive region 331, the second conductive region 332, and the third conductive region 333 are spaced apart from each other; for example, the first conductive region 331, the second conductive region 332, and the third conductive region 333 are sequentially spaced apart along the length or width direction of the heater 30. A separation distance 341 is defined between the first conductive region 331 and the second conductive region 332 to separate them; a separation distance 342 is defined between the second conductive region 332 and the third conductive region 333 to separate them.

[0157] In the embodiment, the first conductive region 331 and the second conductive region 332 are conductively connected by welding wires 351; the laser emitter 361 and the laser emitter 362 are arranged in the first conductive region 331 at intervals, and the N electrode 3612 of the laser emitter 361 and the N electrode of the laser emitter 362 are conductively connected to the first conductive region 331 in the package; the laser emitter 363 and the laser emitter 364 are arranged in the second conductive region 332 at intervals, and the N electrode 3612 of the laser emitter 361 and the N electrode of the laser emitter 362 are conductively connected to the first conductive region 331 in the package; The N electrode of the laser emitter 361 is conductively connected to the second conductive region 332 in the package; then the P electrode 3612 of the laser emitter 361 is conductively connected to the third conductive region 333 through the welding wire 352, the P electrode of the laser emitter 362 is conductively connected to the third conductive region 333 through the welding wire 353, the P electrode of the laser emitter 363 is conductively connected to the third conductive region 333 through the welding wire 354, and the P electrode of the laser emitter 364 is conductively connected to the third conductive region 333 through the welding wire 355. In the embodiment, the laser emitter 361, the laser emitter 362, the laser emitter 363 and the laser emitter 364 are connected in series and then in parallel in a mixed electrical connection mode. In use, through the hybrid arrangement of two-in-two series connection and then parallel connection, the heater 30 with four laser emitters can, on the one hand, emit a laser spot of suitable size to heat the matrix part 121 of sufficient area to produce an aerosol that satisfies the inhalation; on the other hand, the overall equivalent impedance of the heater 30 is kept in a suitable range, so that when the 3.7V output voltage of the battery cell 310 is provided to the heater 30, the heater 30 has a working power greater than 5W. For example, in a specific embodiment, when the 3.7V output voltage of the battery cell 310 is provided to the heater 30, the current flowing through the heater 30 is 2.0A, and the working power of the heater 30 is about 8.5W, which is beneficial for its working efficiency to meet the required heating.

[0158] Or in some other variations, multiple laser emitters such as laser emitter 361, laser emitter 362, laser emitter 363 and laser emitter 364 are all arranged in series or in parallel, and then during operation they all work simultaneously in series or in parallel.

[0159] Or in some other variations, the heater 30 includes:

[0160] A first conductive region and a second conductive region are formed on the first side surface of the support layer 32; the first conductive region and the second conductive region are arranged at intervals; at least one or more laser emitters are arranged on the first conductive region, and the N electrodes of at least one or more laser emitters are conductively connected to the first conductive region, and the P electrodes of at least one or more laser emitters are electrically connected to the second conductive region through welding wires, etc.; and then, in use, the at least one or more laser emitters are powered through the first conductive region and the second conductive region. Alternatively, in this embodiment, the first side surface of the support layer 32 only includes the first conductive region and the second conductive region arranged at intervals.

[0161] In some embodiments, the circuit board 320 is configured to control the heater 30 to emit laser to heat the aerosol-generating article 100 for less than 10 seconds during each heating. Alternatively, the circuit board 320 is configured to control the heater 30 to emit laser to heat the aerosol-generating article 100 for less than a maximum predetermined time to prevent excessive heating and excessive carbonization. For example, in some optional embodiments, the circuit board 320 is configured to control the heater 30 to emit laser to heat the aerosol-generating article 100 for 3 seconds during each heating.

[0162] In some embodiments, when the time from the last heating is less than the minimum predetermined time, the circuit board 320 is configured to prevent the heater 30 from emitting laser to heat the aerosol generating article 100; or, the circuit board 320 is configured to allow the heater 30 to emit laser to heat the aerosol generating article 100 only when the time from the last heating is greater than the minimum predetermined time. For example, when the time from the last time the heater 30 emitted laser to heat the aerosol generating article 100 is less than the minimum predetermined time, such as 5s, the heater 30 is prevented from starting heating; to prevent the heater 30 from heating without sufficient heat dissipation, which may easily burn out the internal semiconductor-based VCSEL laser emitter. Alternatively, the circuit board 320 is configured to allow the heater 30 to start heating only when the accumulated heat or temperature on the heater 30 is dissipated to below the predetermined temperature. More specifically, when the accumulated heat or temperature on the laser emitter in the heater 30 is dissipated to below the predetermined temperature, the heater 30 is allowed to start heating. In some embodiments, the predetermined temperature may be 200° C., or 150° C., or 100° C., or 85° C., or lower.

[0163] according to Figures 2 to 4 As shown, in order to facilitate connecting the heater 30 to the circuit board 320 and then powering the heater 30, the heater 30 also includes:

[0164] The first electrical connection area 371 and the second electrical connection area 372 are arranged at intervals on the second side surface of the support layer 32; the first electrical connection area 371 and the second electrical connection area 372 are defined by a conductive material layer formed on the second side surface of the support layer 32; the material of the first electrical connection area 371 and the second electrical connection area 372 is, for example, gold, silver, copper or an alloy thereof. The thickness of the first electrical connection area 371 and the second electrical connection area 372 is approximately between 0.05 and 0.5 mm.

[0165] In the embodiment, the first electrical connection region 371 is conductively connected to the third conductive region 333 through the conductive material 357 penetrating the support layer 32, and the second electrical connection region 372 is conductively connected to the first conductive region 331 through the conductive material 358 penetrating the support layer 32. In use, by connecting the first electrical connection region 371 to the circuit board 320 and operably connecting to the positive electrode of the battery cell 310, and connecting the second electrical connection region 372 to the circuit board 320 and operably connecting to the negative electrode of the battery cell 310, the laser emitter 361, the laser emitter 362, the laser emitter 363 and the laser emitter 364 are simultaneously provided with voltage by the battery cell 310 as laser pumping sources, so that they work simultaneously to generate lasers.

[0166] In some other embodiments, in order to facilitate the indication of the first electrical connection area 371 connected to the P electrode and the second electrical connection area 372 connected to the N electrode, so that they can be identified by users or automated equipment such as cameras or sensors during assembly; identifiable marks are arranged on the first electrical connection area 371 and / or the second electrical connection area 372 to provide instructions. For example, identifiable pattern marks are arranged on the first electrical connection area 371 and / or the second electrical connection area 372, and the pattern marks are such as positive and negative text, symbols or shapes, so as to provide instructions. Or in some other embodiments, the first electrical connection area 371 and the second electrical connection area 372 have different shapes, or they have different shapes to prevent fooling around, so as to provide instructions. Or in some other embodiments, or the heater 30 has an identifiable shape or hole or pattern on the second side surface of the support layer 32 as an indication mark, so that the second side surface of the heater 30 is an asymmetric identifiable shape, thereby providing an indication of the electrode polarity of the first electrical connection area 371 and the second electrical connection area 372.

[0167] In some embodiments, according to Figures 2 to 4 As shown, the heater 30 also includes:

[0168] A heat dissipation area 373 defined by a heat dissipation material is arranged between the first electrical connection area 371 and the second electrical connection area 372. In some embodiments, the thermal conductivity of the heat dissipation material of the heat dissipation area 373 is greater than 100W / (m·K). For example, in some embodiments, the heat dissipation area 373 is made of the same material as the first electrical connection area 371 and the second electrical connection area 372, for example, they are made of copper; the thermal conductivity of the heat dissipation material of the heat dissipation area 373 is greater than 200W / (m·K); specifically, the thermal conductivity of the heat dissipation area 373 made of metallic copper is about 400W / (m·K). In some embodiments, the first electrical connection area 371, the second electrical connection area 372 and the heat dissipation area 373 are all formed of copper by deposition, mounting or printing; this is beneficial to improving the efficiency of preparation.

[0169] In the embodiment, the heat dissipation region 373 is arranged spaced or isolated from the first electrical connection region 371 and the second electrical connection region 372. For example, there is a spacing distance 374 between the first electrical connection region 371 and the heat dissipation region 373, and there is a spacing distance 375 between the second electrical connection region 372 and the heat dissipation region 373.

[0170] In some embodiments, since the heater 30 has a relatively small volume as described above, in order to facilitate mechanical fixing of the heater 30 and welding leads etc. to the circuit board 320; Figure 7 As shown, the heating mechanism 330 of the aerosol generating device 300 further includes:

[0171] The base 380 supports, holds or mounts the heater 30. Furthermore, the base 380 can also assist in dissipating heat from the heater 30. Furthermore, the base 380 is further configured to provide a conductive connection between the heater 30 and the circuit board 320. Figure 7 As shown in FIG. 3 , the base 380 is configured in a substantially sheet-like shape.

[0172] In an embodiment, the base 380 is provided with a plurality of notches or holes 383 arranged at intervals; the notches or holes 383 are arranged at intervals around the circumference of the base 380. During assembly, the aerosol generating device 300 extends or is inserted into the notches or holes 383, thereby holding or fixing the base 380.

[0173] In an embodiment, the base 380 is made of a material with a relatively high thermal conductivity; the substantially sheet-shaped heater 30 is bonded to the surface of the base 380 by welding or mounting, and is heat-conducted with the base 380; thus, the base 380 assists in heat dissipation of the heater 30. In an embodiment, the heater 30 is substantially in contact with the planar contact surface of the base 380. The heater 30 and the base 380 are in planar contact or bonded.

[0174] In some embodiments, the base 380 is made of a surface insulating metal material, such as copper or other materials with high thermal conductivity. In some embodiments, the thermal conductivity of the base 380 is greater than 100 W / (m·K).

[0175] according to Figure 7 As shown, the base 380 includes:

[0176] A third side 3810 and a fourth side 3820 opposite to each other;

[0177] The first electrode region 3811 and the second electrode region 3821 are arranged at intervals; wherein the first electrode region 3811 is arranged close to the third side 3810, and the second electrode region 3821 is arranged close to the fourth side 3820; the first electrode region 3811 and the second electrode region 3821 are coatings or thin layers formed on the surface of the base 380 by deposition, spraying or printing of conductive metal or alloy materials, so as to be connected to the first electrical connection region 371 and the second electrical connection region 372 of the heater 30 for electrical conduction, thereby supplying power to the heater 30.

[0178] In an embodiment, the first electrode region 3811 is continuously formed of a conductive metal or alloy material; and / or the second electrode region 3821 is continuously formed of a conductive metal or alloy material.

[0179] In an embodiment, the first electrode region 3811 and / or the second electrode region 3821 are not completely exposed. A surface insulating layer is sprayed, deposited, or formed on a portion of the surface of the first electrode region 3811 and / or the second electrode region 3821, so that a portion of the surface of the first electrode region 3811 and / or the second electrode region 3821 is covered instead of being completely exposed. The material of the insulating layer is, for example, glaze, glass, or polyurethane, etc., a commonly used insulating coating material.

[0180] exist Figure 7 In the illustrated embodiment, the first electrode region 3811 has an exposed contact portion 3812 and a plurality of contact portions 3813 conductively connected to the contact portion 3812. The plurality of contact portions 3813 are spaced apart near the edge of the base 380. Each of the plurality of contact portions 3813 is located between two adjacent notches or holes 383.

[0181] exist Figure 7 In the illustrated embodiment, the second electrode region 3821 has an exposed contact portion 3822 and a plurality of contact portions 3823 conductively connected to the contact portion 3822. The plurality of contact portions 3823 are spaced apart near the edge of the base 380. Each of the contact portions 3823 is located between two adjacent notches or holes 383.

[0182] After assembly, when the heater 30 is mounted or combined on the base 380, the first electrical connection area 371 of the heater 30 is aligned with the contact part 3812, assembled and contacted, and the second electrical connection area 372 is aligned with the contact part 3822, assembled and contacted; then, any one of the contact parts 3813 is connected to the circuit board 320 by welding the first conductive lead 391, and any one of the contact parts 3823 is connected to the circuit board 320 by welding the second conductive lead 392. In use, the base 380 provides conductive access between the heater 30 and the circuit board 320, which is more advantageous than the method of welding leads to the circuit board 320 on the first electrical connection area 371 and the second electrical connection area 372 of the small-sized heater 30.

[0183] according to Figure 7 As shown, when the heater 30 is combined with the base 380, the contact portion 3812 and the contact portion 3822 are blocked and covered by the heater 30; the contact portion 3813 and the contact portion 3823 are not blocked and covered by the heater 30 and are thus exposed outside the heater 30, which is beneficial for facilitating the welding of the conductive leads 391 and the conductive leads 392.

[0184] In order to facilitate the assembly, the heater 30 and the base 380 are reminded to be aligned and assembled in a predetermined direction. Figure 7In the illustrated embodiment, the contact portion 3812 and / or the contact portion 3822 are provided with an indicator mark for distinguishing the electrode polarity; for example Figure 7 In the figure, a positive pole "+" pattern mark is printed or sprayed on the contact part 3812, and a negative pole "-" pattern mark is printed or sprayed on the contact part 3822; this is used to provide an indication of the alignment of the first electrical connection area 371 with the contact part 3812, and to provide an indication of the alignment of the second electrical connection area 372 of the heater 30 with the contact part 3822 during assembly.

[0185] Or in some other embodiments, the contact portion 3812 and / or the contact portion 3822 may be printed or sprayed with a "P or N" pattern indicating the P-type and N-type of the semiconductor to provide an indication that the heater 30 and the base 380 are aligned and assembled in a predetermined direction. Or in some other embodiments, the base 380 and / or the heater 30 may be provided with an identifiable foolproof structure or an indication structure such as a protrusion to provide an indication that the heater 30 and the base 380 are aligned and assembled in a predetermined direction.

[0186] exist Figure 7 In the illustrated embodiment, a heat dissipation connection area 384 is also arranged on the base 380 and is located between the contact portion 3812 and the contact portion 3822; after assembly, the heat dissipation area 373 of the heater 30 is aligned with and abuts against the heat dissipation connection area 384 to form a thermally conductive contact, which is beneficial for promoting heat dissipation.

[0187] In some specific embodiments, when the aerosol generating article 100 is heated by emitting laser light through the heater 30 , the thermal conductivity of the base 380 has good heat dissipation, so that the temperature of the base 380 is less than 100° C. More preferably, during operation, the temperature of the base 380 is less than 85° C.

[0188] In some embodiments, the heater 30 and the base 380 are both in sheet shape; the area of ​​the base 380 is at least 5 times the area of ​​the heater 30 , which is beneficial for the base 380 to provide a larger heat dissipation area for heat dissipation.

[0189] In some embodiments, the heater 30 and / or the base 380 are separated from the circuit board 320 and connected by wires or the like.

[0190] Alternatively, in some other embodiments, the heater 30 and / or the base 380 may be directly mounted, mounted, or arranged on the circuit board 320. For example, the heater 30 may be directly soldered to the circuit board 320, so that the heater 30 is mounted on the circuit board 320 and supported by the circuit board 320. Alternatively, the base 380 may be directly soldered to the circuit board 320, so that the base 380 is mounted on the circuit board 320 and supported by the circuit board 320.

[0191] or Fig.11 A schematic diagram of an aerosol generating system of yet another embodiment is shown; in this embodiment, the aerosol generating system comprises:

[0192] The aerosol generating article 100a is configured as a longitudinal or elongated strip; the aerosol generating article 100a is flexible and can be rolled;

[0193] The aerosol generating device 300a comprises:

[0194] A conveying mechanism to move or convey the aerosol generating article 100a in a predetermined direction;

[0195] At least one or more heaters 30a for heating the portion of the aerosol-generating article 100a that is driven or delivered to a predetermined location;

[0196] The battery cell 310a and the circuit board 320a; the circuit board 320a can operably connect at least one or more heaters 30a to the battery cell 310a, and is further used to control the battery cell 310a to provide power to the heater 30a.

[0197] In an embodiment, at least one or more heaters 30a are laser emitters that perform heating by radiating laser; or at least one or more heaters 30a include laser emitters. In some embodiments, the predetermined position may be a position that is parallel and opposite to the heater 30a.

[0198] exist Fig.11 In the illustrated embodiment, the conveying mechanism includes a first rotatable wheel 391a and a second rotatable wheel 392a arranged at intervals; when the aerosol generating article 100a is received in the aerosol generating device 300a, it is wound or wrapped around the first rotatable wheel 391a and the second rotatable wheel 392a. In use, the first rotatable wheel 391a, the second rotatable wheel 392a and the aerosol generating article 100a wound thereon constitute a pulley transmission, and the aerosol generating article 100a can be moved or conveyed in a predetermined direction by rotating one of the first rotatable wheel 391a and the second rotatable wheel 392a. And, the conveyed aerosol generating article 100a is unwound from one of the first rotatable wheel 391a and the second rotatable wheel 392a and wound on the other.

[0199] Alternatively in this embodiment, the aerosol-generating article 100a may include:

[0200] Strip-shaped substrates, such as aluminum foil;

[0201] A plurality of substrate portions are discretely or spacedly arranged on the substrate in the length direction. In each heating, the heater 30a heats one substrate portion conveyed to a predetermined position by the conveying mechanism to generate an aerosol for one inhalation.

[0202] Alternatively, in some alternative embodiments, the aerosol generating product 100a is configured to be annular in shape; or when the strip-shaped aerosol generating product 100a is received in the aerosol generating device 300a, it is conveyed by a conveying mechanism along an arc-shaped or annular moving path; and the heater 30a is located inside the aerosol generating product 100a or within the arc-shaped or annular moving path, so that only a substrate portion of the aerosol generating product 100a conveyed to a predetermined position is heated each time the heating is performed.

[0203] In the above embodiments, when the aerosol generating product 100a is received in the aerosol generating device 300a, the aerosol generating device 300a can drive the aerosol generating product 100a to move relative to the heater 30a, so that the heater 30a can selectively heat different positions of the aerosol generating product 100a. Alternatively, in some other variant embodiments, when the aerosol generating product 100a is received in the aerosol generating device 300a, the aerosol generating product 100a is immovable; the aerosol generating device 300a can drive the heater 30a to move relative to the aerosol generating product 100a, so that the heater 30a can selectively heat different positions of the aerosol generating product 100a.

[0204] In more embodiments, the aerosol-generating article 100a may also be configured to be in the shape of a cylinder, a column, etc.

[0205] In the above embodiments, the heater 30a emits laser from the outside of the aerosol generating product 100a to the aerosol generating product 100a to heat it; or in some other variations, the heater 30a can be located in or extend into the aerosol generating product 100a, and then emits laser from the inside of the aerosol generating product 100a to heat it.

[0206] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.

Claims

1. An aerosol generating device, configured to receive an aerosol generating article and heat it to generate an aerosol; characterized in that: include: at least one heater for heating at least a portion of an aerosol-generating article received by the aerosol-generating device; The at least one heater is configured to heat at least a portion of the aerosol-generating article by emitting laser light.

2. The aerosol generating device according to claim 1, characterized in that The at least one heater is configured to be substantially sheet-like; The at least one heater is configured to emit laser light in a direction perpendicular to the heater.

3. The aerosol generating device according to claim 1 or 2, characterized in that: The at least one heater is configured to have a length and / or a width of 5 to 15 mm; and / or the at least one heater is configured to have a thickness of 1 to 4 mm.

4. The aerosol generating device according to claim 1 or 2, characterized in that: The diameter of the spot of the laser emitted by the at least one heater is between 2.5 mm and 8 mm.

5. The aerosol generating device according to claim 1 or 2, characterized in that: The spot of the laser emitted by the at least one heater has an approximately M-shaped light intensity distribution in the radial direction; Alternatively, the spot of the laser emitted by the at least one heater includes: a central area, and a peripheral area located between the central area and the outermost edge of the spot; the light intensity of the central area is smaller than the light intensity of the peripheral area, and greater than the light intensity of the outermost edge of the spot.

6. The aerosol generating device according to claim 1 or 2, characterized in that: The at least one heater comprises a plurality of non-linearly arranged laser emitters; And / or, the at least one heater comprises at least three laser emitters arranged in an array.

7. The aerosol generating device according to claim 1 or 2, characterized in that: Also includes: The circuit board is provided with a circuit; the circuit is configured to control the at least one heater to emit laser light for heating for a time shorter than a maximum predetermined time in each heating.

8. The aerosol generating device according to claim 1 or 2, characterized in that: Also includes: A circuit board having a circuit arranged thereon; The circuit is configured to allow the at least one heater to start heating only when the time since the last heating of the at least one heater is greater than a minimum predetermined time; and / or, the circuit is configured to prevent the at least one heater from starting heating when the time since the last heating of the at least one heater is less than a minimum predetermined time.

9. The aerosol generating device according to claim 1 or 2, characterized in that: Also includes: A circuit board having a circuit arranged thereon; The at least one heater comprises a laser emitter for emitting laser light; The circuit is configured to allow the at least one heater to initiate heating only when the laser emitter is cooled below a predetermined temperature.

10. The aerosol generating device according to claim 1 or 2, characterized in that: The heater includes a plurality of laser emitters arranged at intervals; The plurality of laser emitters are configured to be able to start working only simultaneously; or, any one of the plurality of laser emitters cannot be started working individually.

11. The aerosol generating device according to claim 1 or 2, characterized in that: The heater includes at least one planar laser emitter.

12. The aerosol generating device according to claim 1 or 2, characterized in that: The heater comprises: an outer body defining an outer surface of the heater; a sealed cavity defined within the outer body; At least one or more laser emitters, located in the cavity, for emitting laser light; The outer body is only partially transparent to laser light, thereby allowing laser light emitted by the laser emitter to pass through the outer body to the outside of the heater.

13. The aerosol generating device according to claim 12, characterized in that The external body comprises: a support layer having a first side and a second side opposite to each other; a substantially annular fence disposed on a first side of the support layer and at least partially surrounding or defining the cavity; A light-transmitting cover through which laser light can pass closes or seals the cavity; the laser light emitted by the laser emitter is emitted to the outside of the heater through the light-transmitting cover.

14. The aerosol generating device according to claim 13, characterized in that The at least one or more laser emitters are combined on the support layer and supported by the support layer; and / or, the support layer is light-impermeable; and / or, the thermal conductivity of the support layer is greater than 80 W / (m·K); And / or, the support layer has a thickness of 0.3 to 1.5 mm; And / or, the support layer includes aluminum nitride ceramic.

15. The aerosol generating device according to claim 13, characterized in that The light-transmitting cover is planar; or, at least a portion of the light-transmitting cover is curved.

16. The aerosol generating device according to claim 13, characterized in that The thermal conductivity of the fence is greater than 200 W / (m·K); And / or, the fence is made of metal or alloy material, so that the inner surface of the fence is reflective; And / or, the fence is non-contact with the at least one or more laser emitters.

17. The aerosol generating device according to claim 12, characterized in that: The at least one or more laser emitters are vertical cavity surface emitting lasers; And / or, the at least one or more laser emitters are semiconductor lasers.

18. The aerosol generating device according to claim 13, characterized in that The laser emitter has a first electrode layer and a second electrode layer; The heater further comprises: A first electrical connection area and a second electrical connection area are arranged at intervals on the surface of the second side of the supporting layer; the first electrical connection area is electrically connected to the first electrode layer of the laser emitter, and the second electrical connection area is electrically connected to the second electrode layer of the laser emitter, so that the laser emitter is powered by the first electrical connection area and the second electrical connection area during use.

19. The aerosol generating device according to claim 18, characterized in that The heater is also provided with: At least one first indicator mark is used to provide an indication associated with the electrode polarity of the first electrical connection area and the second electrical connection area.

20. The aerosol generating device according to claim 1 or 2, characterized in that: Also includes: A base supports or holds the heater.

21. The aerosol generating device according to claim 20, characterized in that The base and the heater are in planar contact or combination; And / or, the base is in contact with the heater and is heat-conductive, so as to promote heat dissipation of the heater; and / or, the thermal conductivity of the base is greater than 100 W / (m·K); and / or, the heater and the base are configured to be substantially sheet-like, and the area of ​​the base is at least 5 times the area of ​​the heater; And / or, at least one or more notches or holes are arranged on the base, and the aerosol generating device holds or fixes the base through the notches or holes.

22. The aerosol generating device according to claim 20, characterized in that The heater is provided with an electrical connection area, and the base is provided with an electrode area electrically connected to the electrical connection area; The circuit board is operably and electrically connected to the electrode area of ​​the base to supply power to the heater.

23. The aerosol generating device according to claim 22, characterized in that A part of the surface of the electrode region is covered by an insulating layer, and has a first contact portion and a second contact portion which are not covered by the insulating layer; the first contact portion and the second contact portion are spaced apart; The electrical connection area of ​​the heater covers and is electrically connected to the first contact part, and the circuit board is electrically connected to the second contact part.

24. The aerosol generating device according to claim 22, characterized in that The electrode region includes a first electrode region and a second electrode region; The base is also provided with: At least one second indicator mark is used to provide an indication associated with the electrode polarity of the first electrode area and the second electrode area.

25. The aerosol generating device according to claim 1 or 2, characterized in that: Also includes: a circuit board configured to control power supplied to the heater; The heater is securely mounted or arranged on the circuit board, or the heater is separate from the circuit board.

26. A heater for an aerosol generating device, characterized in that: include: a support layer having a first side and a second side opposite to each other; a substantially annular fence disposed on the first side of the support layer and at least partially surrounding or defining the cavity; At least one or more laser emitters, located in the cavity, for emitting laser light; A laser-transmissive light-transmitting cover is combined with the fence and closes or seals the cavity.

27. A heater for an aerosol generating device, characterized in that: include: an outer body defining an outer surface of the heater; a sealed cavity defined within the outer body; At least one or more laser emitters, located in the cavity, for emitting laser light; The outer body is only partially transparent to laser light, thereby allowing the laser light emitted by the laser emitter to pass through the outer body to the outside of the heater in a direction perpendicular to the heater.

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