Light wave heating assembly and aerosol generating device

Abstract

The invention discloses a light wave heating assembly and an aerosol generating device, and the light wave heating assembly comprises a light-transmitting base material which is provided with an inner surface and an outer surface; the resistance heating film layer is arranged on the outer surface or the inner surface of the light-transmitting base material; the electrode layer is arranged on the side, away from the light-transmitting base material, of the resistance heating film layer, and the electrode layer comprises a positive electrode layer and a negative electrode layer which are arranged on the resistance heating film layer in a spaced mode; and after being electrified, the resistance heating film layer emits light waves to penetrate through the light-transmitting base material to heat a to-be-heated substance on the inner surface or the outer surface of the light-transmitting base material. The heating device is more uniform when used for heating a heated substance, and the heating efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of aerosol generating devices, and in particular to a light wave heating component and an aerosol generating device. Background Art

[0002] Tobacco aerosol is created by heating rather than burning tobacco material to release chemical compounds.

[0003] Currently known tobacco aerosol generating devices include:

[0004] 1. Needle heater, that is, a needle-shaped heating element is inserted into the center of the heated object, and the heat diffuses from the center to the outside. Because the area of ​​the needle itself is very small, the temperature of the entire material needs to be relatively high to heat it. This inevitably causes the center temperature to be high and the edge temperature to be low, making it difficult for the heated object to be heated evenly. Excessive center temperature may also cause carbonization of the intermediate material and damage the heated material.

[0005] 2. Tongue-shaped heaters, that is, inserting a tongue-shaped heating element into the center of the heated object, the heat diffuses from the center outwards. The area of ​​the tongue-shaped heater is slightly larger than that of the needle-shaped heater. To heat the entire material, the temperature needs to be relatively high, which will also cause the center temperature to be high and the edge temperature to be low. It is difficult for the heated object to be heated evenly. If the center temperature is too high, it may also cause the middle material to carbonize and damage the heated material, or the edge material to be heated incompletely. At the same time, the electric heat conversion efficiency of needle-type and tongue-shaped heaters is low.

[0006] 3. Tubular opaque heater (ceramic tube, stainless steel tube, etc.), that is, the material to be heated is directly placed in the heating tube, and the heat is generated by the heating element on the outer wall of the tube, and is transferred to the inner wall of the tube by heat conduction, so that all the inner walls heat the heated material. Although the contact area between the heater and the heated object is relatively large, the heat conduction method has a slow heat conduction speed. It takes a long time for the temperature to be transferred from the surface of the heated material to the center, so it takes too long for it to reach the equilibrium temperature, and the power consumption is also greater.

[0007] 4. The combination of needle and tubular heaters can achieve relatively balanced internal and external temperatures. Because the two heaters are used at the same time, they consume too much power, which is not conducive to energy saving, resulting in a shorter or insufficient battery life of the battery-powered heater.

[0008] That is, the heater in the existing aerosol generating device has defects such as uneven heating, low electrothermal conversion efficiency, and high power consumption.

[0009] Therefore, the existing technology needs to be improved. Summary of the invention

[0010] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a light wave heating component and an aerosol generating device, which are intended to heat the heated substance more evenly and with higher heating efficiency.

[0011] To achieve the above objectives, in a first aspect, the present invention provides a light wave heating component, comprising:

[0012] A light-transmitting substrate having an inner surface and an outer surface;

[0013] A resistance heating film layer, wherein the resistance heating film layer is arranged on the outer surface or the inner surface of the light-transmitting substrate;

[0014] An electrode layer, the electrode layer is arranged on a side of the resistive heating film layer away from the light-transmitting substrate, and the electrode layer includes a positive electrode layer and a negative electrode layer that are separated and arranged on the resistive heating film layer;

[0015] After being energized, the resistance heating film layer emits light waves to pass through the light-transmitting substrate to heat the substance to be heated on the inner surface or the outer surface of the light-transmitting substrate.

[0016] In some examples, a thin film thermally sensitive temperature layer is further included, which is disposed on the electrode layer.

[0017] In some examples, a reflective heat-dissipating layer is further included between the electrode layer and the thin film thermally sensitive temperature layer.

[0018] In some examples, the light-transmitting substrate is a tubular structure.

[0019] In some examples, the resistive heating film layer includes a plurality of spaced regions, each of which is provided with a positive electrode layer and a negative electrode layer to independently power each region.

[0020] In some examples, the resistive heating film layer is a nano-ATO light wave heating film.

[0021] In some examples, the nano-ATO light wave heating film is formed by setting the nano-ATO raw material on the light-transmitting substrate through a film forming process, and the components of the nano-ATO raw material include: 30% to 50% of stannous chloride or tin tetrachloride, 0.5% to 5% of antimony trichloride, 0.5% to 10% of bismuth trioxide, 30% to 65% of anhydrous ethanol, 0.5% to 8% of magnesium chloride, and 0.5% to 9% of manganese chloride.

[0022] In some examples, the resistive heating film layer is disposed on the light-transmitting substrate by a silk-screen printing process with a resistive paste, and the components of the resistive paste include: 50% to 65% carbon powder or graphene powder, 0.5% to 5% pine oil, 0.5% to 10% glass powder, and 30% to 40% high-temperature resin.

[0023] In some examples, the resistive heating film layer is made of metal foil and light wave slurry, and the light wave slurry includes at least one or more of calcium powder, magnesium powder, silicon carbide, manganese oxide, and ferrosilicon.

[0024] In some examples, the thin film thermally sensitive temperature layer is a sheet-shaped thin film PTC thermistor.

[0025] In a second aspect, the present invention further provides an aerosol generating device, which includes the aforementioned light wave heating component.

[0026] In some examples, the aerosol generating device further includes a heat-insulating tube, an upper bracket, a lower bracket, and an air inlet bracket;

[0027] The light wave heating component is accommodated in the heat insulation tube, and the upper bracket and the lower bracket are respectively sealed at both ends of the heat insulation tube, and the air intake bracket is arranged at the bottom of the lower bracket.

[0028] It should be understood that within the scope of the present invention, the above-mentioned technical features of the present invention and the technical features specifically described below (such as implementation methods) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be described one by one here.

[0029] Beneficial effects of the present invention:

[0030] When the light wave heating component of the present invention heats tobacco, the film-shaped resistance heating film layer is coated on the light-transmitting substrate to heat the material to be heated on the surface of the light-transmitting substrate. The film-shaped resistance heating film layer has a large heating area and a high electrothermal conversion efficiency, which can reach more than 99%. At the same time, after the film-shaped resistance heating film layer is energized, it emits light waves to pass through the light-transmitting substrate, and heats the material to be heated on the other side of the light-transmitting substrate in the form of thermal radiation. The heating method of light wave thermal radiation can penetrate the gap between the light-transmitting substrate and the material to be heated, such as tobacco particles, and combined with the Brownian motion of tobacco and the high-frequency vibration of tobacco driven by light waves, the outside and the center of the tobacco can be heated at the same time, so that the tobacco can be heated more evenly, and the temperature of the outside and the center of the tobacco can quickly reach a balanced state, reducing power consumption, thereby achieving energy saving and emission reduction. At the same time, the heating efficiency of the present invention is higher than that of the needle type, tongue type, and ceramic tube, and the heated material will not undergo qualitative changes, carbonization, etc. due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 It is a schematic transverse cross-sectional view of the first embodiment of the light wave heating assembly of the present invention.

[0033] Figure 2 It is a schematic diagram of the distribution of the resistance heating film layer divided into multiple regions and the positive electrode layer thereon on the substrate of the present invention.

[0034] Figure 3 It is a schematic diagram of the distribution of the resistance heating film layer divided into multiple regions and the negative electrode layer thereon on the substrate of the present invention.

[0035] Figure 4 Schematic diagram of the development of the multilayer structure on the substrate of the present invention.

[0036] Figure 5 This is a schematic structural diagram of Example 1 of the aerosol generating device of the present invention.

[0037] Figure 6 for Figure 5 Schematic diagram of the structure.

[0038] Description of reference numerals:

[0039] 100-heating assembly, 10-handheld part, 11, 22-inner surface, 12, 21-outer surface, 20-resistance heating film layer, 23-first heating area, 24-second heating area, 25-third heating area, 30-electrode layer, 31-positive electrode layer, 32-negative electrode layer, 40-thin film thermal sensitive temperature layer, 50-reflective heat equalizing layer, 200-heating device, 201-insulation tube, 202-upper bracket, 203-lower bracket, 204-air intake bracket, 205-upper sealing ring, 206-lower sealing ring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0043] The specific implementation examples are as follows, please refer to Figures 1 to 4 The embodiment of the present invention provides a light wave heating component 100, comprising:

[0044] The light-transmitting substrate 10 has an inner surface 11 and an outer surface 12. The light-transmitting substrate 10 can be made of a transparent or translucent material that can transmit light waves.

[0045] Preferably, the material of the light-transmitting substrate 10 of the present invention includes at least one of quartz glass, high borosilicate glass, and sapphire, and can also be other light-transmitting materials, such as silicon carbide, magnesium fluoride ceramics, yttrium oxide ceramics, magnesium aluminum spinel ceramics, yttrium aluminum garnet single crystals, and germanium single crystals.

[0046] The light-transmitting substrate 10 of the present invention may be in various shapes, such as a sheet or a tube. Figure 1 As shown, the light-transmitting substrate 10 of the embodiment of the present invention is a tubular structure. Tobacco can be placed inside or outside the light-transmitting substrate 10 of the tubular structure to be heated. The design of the tubular structure makes it easy to install the light-transmitting substrate 10 in a compact space and has a sufficiently large contact area with the heated material.

[0047] The wave heating assembly 100 of the present invention further includes a resistance heating film layer 20, which is disposed on the outer surface 12 or the inner surface 11 of the light-transmitting substrate 10. The resistance heating film layer 20 is coated on the outer surface 12 or the inner surface 11 of the light-transmitting substrate 10 in a film-like structure. As a method, Figure 1 As shown, the resistance heating film layer 20 of the embodiment of the present invention is circumferentially coated on the outer surface 12 of the light-transmitting substrate 10. The function of the resistance heating film layer 20 is to generate light waves, and use the light waves to heat the tobacco material to be heated in the form of heat radiation.

[0048] After the resistance heating film layer 20 of the present invention is energized, it emits light waves to pass through the light-transmitting substrate 10 to heat the material to be heated on the inner surface 11 or outer surface 12 of the light-transmitting substrate. In this embodiment, after the resistance heating film layer 20 is energized, it emits light waves to pass through the light-transmitting substrate 10 to heat the material to be heated on the inner surface 11 of the light-transmitting substrate.

[0049] The light waves emitted by the resistance heating film layer 10 of the present invention after being energized are infrared light waves. Infrared light waves have good thermal radiation properties. Preferably, the light waves emitted by the resistance heating film layer 10 of the present invention after being energized are far-infrared light waves, which have better thermal radiation properties. At the same time, the light waves emitted by the resistance heating film layer 10 of the present invention are light waves with a wavelength of 4 to 18 um, and the frequency of the light waves in this wavelength range is close to the natural frequency of tobacco. Therefore, the light waves emitted by the resistance heating film layer 10 of the present invention after being energized can drive the tobacco to resonate and enhance the heating effect on the tobacco, making the heating more uniform.

[0050] The heating element of the present invention is a film-shaped resistance heating film layer 20, which has a large heating area and high electric heat conversion efficiency compared to the existing needle-type, tongue-type, ceramic tube, etc. At the same time, the film-shaped resistance heating film layer 20 emits light waves after being energized, and heats the material to be heated on the other side of the light-transmitting substrate 10 in the form of thermal radiation. The thermal radiation heating has a higher heating efficiency than the traditional heat conduction heating, which further improves the heating efficiency of the heating component 100 of the present invention. The heating method of light wave thermal radiation can penetrate the gap between the light-transmitting substrate 10 and the tobacco particles, and combined with the Brownian motion of the tobacco and the high-frequency vibration of the tobacco driven by the light wave, the outside and the center of the tobacco can be heated at the same time. In this way, the heating component 100 of the present invention heats the center and surface of the tobacco evenly during operation, and the temperature of the surface and center of the tobacco can quickly reach a balanced state, reducing power consumption. And the heated material will not undergo qualitative changes, carbonization, etc. due to the excessive difference in internal and external temperatures.

[0051] It can be understood that the light wave heating component 100 of the present invention, in addition to the resistance heating film layer 20 emitting light waves and heating the material to be heated in the form of light wave thermal radiation, also heats the material to be heated in the form of heat conduction. After the resistance heating film layer 20 is energized, in addition to emitting light waves, it also generates heat by its own molecular thermal motion. The molecular thermal motion hits the light-transmitting substrate 10 and is transferred to the material to be heated on the other side of the light-transmitting substrate 10 in the form of heat conduction to heat the material to be heated. That is, the light wave heating component 100 of the present invention has two heating methods at the same time, one is the thermal radiation method of light waves, and the other is the thermal conduction method. Among them, the heating component 100 of the present invention mainly uses light wave thermal radiation heating, supplemented by thermal conduction heating.

[0052] The light wave heating component 100 of the present invention directly covers the resistive heating film layer 20 on the outer surface 12 or the inner surface 11 of the light-transmitting substrate 10, so that there is no other structure or material barrier between the resistive heating film layer 20 and the light-transmitting substrate 10, which can ensure the light-transmitting effect, improve the heat conduction efficiency, and simplify the structure. If other structures, such as electrodes, are added between the resistive heating film layer 20 and the light-transmitting substrate 10, it is necessary to consider the effect of the electrodes on the shielding of light waves, or make the electrodes into a light-transmitting material, which will increase the complexity and cost of the structure.

[0053] The light wave heating component 100 of the present invention further comprises an electrode layer 30, which is disposed on the side of the resistive heating film layer 20 away from the light-transmitting substrate 10, and the electrode layer 30 comprises a positive electrode layer 31 and a negative electrode layer 32 which are separated and disposed on the resistive heating film layer 20. As an embodiment, Figure 1 As shown, in the embodiment of the present invention, the electrode layer 30 is attached to the outer surface 21 of the resistive heating film layer 20, and the inner surface 22 of the resistive heating film layer 20 is attached to the outer surface 12 of the light-transmitting substrate 10, that is, the electrode layer 30 of this embodiment is arranged on the outside of the resistive heating film layer 20, and the electrode layer 30 on the outside of the resistive heating film layer 20 is divided into a positive electrode layer 31 and a negative electrode layer 32, and the positive electrode layer 31 and the negative electrode layer 32 are separated and disconnected, so as to prevent short circuit. That is, the positive electrode layer 31 and the negative electrode layer 32 are both covered on the resistive heating film layer 20, and the two are separated. Preferably, a positive electrode lead is also connected to the positive electrode layer 31, and a negative electrode lead is also connected to the negative electrode layer 32, and the positive electrode lead and the negative electrode lead are convenient for circuit connection. It can be understood that the positive electrode layer 31 and the negative electrode layer 32 can also be directly connected to the external circuit. When the positive electrode layer 31 and the negative electrode layer 32 are powered on, current flows into the positive electrode layer 31, passes through the resistance heating film layer 20, and makes the resistance heating film layer 20 emit light and heat, and then flows out from the negative electrode layer 32. The arrangement of the electrode layer 30 enables the resistance heating film layer 20 to work when powered on.

[0054] The resistance heating film layer 20 of the present invention has three implementation modes:

[0055] Method 1: The resistance heating film layer 20 of the present invention is a nano-ATO light wave heating film.

[0056] The advantages of the nano ATO light wave heating film include high light transmittance, high specific surface area, excellent electrical conductivity and high thermal stability, as well as excellent durability and chemical stability, which enables the light wave heating component 100 of the present invention to have excellent electrothermal conversion efficiency.

[0057] The nano-ATO light wave heating film in the first method is provided with the nano-ATO raw material on the light-transmitting substrate 10 through a film-forming process, and the components of the nano-ATO raw material include: 30% to 50% of stannous chloride or tin tetrachloride, 0.5% to 5% of antimony trichloride, 0.5% to 10% of bismuth trioxide, 30% to 65% of anhydrous ethanol, 0.5% to 8% of magnesium chloride, 0.5% to 9% of manganese chloride, and also includes an appropriate amount of inorganic acid. The film-forming process in the first method of the present invention can be a chemical deposition method, a spray pyrolysis method, a sputtering method, an evaporation method, a coating method, and the like.

[0058] Preferably, the components of the nano ATO raw material include: 35% stannous chloride or tin tetrachloride, 2% antimony trichloride, 5% bismuth trioxide, 54% anhydrous ethanol, 0.5% magnesium chloride, 0.5% manganese chloride, and 3% inorganic acid. The components enable a good film-forming effect in the process of making the nano ATO light wave heating film, and the prepared nano ATO light wave heating film has good stability and low resistivity.

[0059] Method 2: The resistance heating film layer 20 of the present invention is arranged on the light-transmitting substrate 10 by a silk-screen printing process. The components of the resistance paste include: 50% to 65% carbon powder or graphene powder, 0.5% to 5% pine oil, 0.5% to 10% glass powder, 30% to 40% high-temperature resin, and also include appropriate amounts of acrylic acid, silane, polyether, etc.

[0060] Preferably, the components of the resistor paste include: 55% carbon powder or graphene powder, 3% pine alcohol, 8% glass powder, and 32% high temperature resin.

[0061] Method 3: The resistance heating film layer 20 of the present invention is made of metal sheets and light wave slurry, and the light wave slurry includes at least one or more of calcium powder, magnesium powder, silicon carbide, manganese oxide, and ferrosilicon, and may also contain other materials. The light wave slurry is arranged on the metal sheet, and the metal sheet is heated after being energized as a resistor, and the light wave slurry excites light waves to be emitted outward after being energized and heated.

[0062] The metal foil of method three is made of pure metal or metal alloy (such as nickel, 430 steel, iron-chromium-aluminum alloy, 316 steel, iron-nickel alloy, etc.) into a 0.02mm~0.03mm thin sheet, which is then compounded on a 0.02mm~0.05mm high-temperature resistant substrate (such as polyimide, etc.), and a heating circuit is made by developing and etching, and then the above-mentioned light wave slurry is silk-screened on its surface and sintered and solidified to form a high-efficiency heat-generating resistive heating film layer 20.

[0063] Preferably, the light wave heating component 100 of the present invention further comprises a thin film thermal sensitive temperature layer 40 disposed on the electrode layer 30. Figure 4As shown, in this embodiment, the thin film thermal sensitive temperature layer 40 is arranged on the outside of the electrode layer 30, and the thin film thermal sensitive temperature layer 40 covers the electrode layer 30. Since the electrode layer 30 is divided into a separated positive electrode layer 31 and a negative electrode layer 32, the thin film thermal sensitive temperature layer 40 covers the resistance heating film layer 20 at the separated notch position, so that the thin film thermal sensitive temperature layer 40 can directly sense the temperature of the resistance heating film layer 20, and can also indirectly sense the temperature of the resistance heating film layer 20 by sensing the temperature of the electrode layer 30, and then feedback to the control circuit outside through the circuit.

[0064] The aerosol-generating heating tube in the prior art currently has a tubular heating element that is heated circumferentially. The temperature measuring element in the heating device is generally fixed to the heating tube by wrapping double-sided tape. This fixing method of the temperature measuring element is not firm and the temperature measuring element is easy to move, resulting in inaccurate temperature measurement by the temperature measuring element, which in turn affects the heating effect of the heating device. Thirdly, the temperature measuring element in the prior art generally uses thermocouples, point thermistors, etc. This type of temperature measuring element is in point contact with the heating tube and measures the local temperature. The temperature in other areas of the heating tube may be too high or too low and cannot be measured, which also leads to inaccurate temperature measurement.

[0065] The present invention uses a thin film thermal sensitive temperature layer 40, which is in the form of a film and covers the periphery of the resistance heating film layer 20. It is in surface contact with the resistance heating film layer 20 and will not loosen. Therefore, the thin film thermal sensitive temperature layer 40 of the present invention can measure temperature accurately and stably. The thin film thermal sensitive temperature layer 40 can be provided with electrode leads to connect to the peripheral circuit. At the same time, the thin film thermal sensitive temperature layer 40 of the present invention can be set in different areas, so that the temperature of different areas of the resistance heating film layer 20 can be monitored, and too high or too low temperature can be monitored.

[0066] Preferably, in the embodiment of the present invention, the thin film thermistor temperature sensing layer 40 is a sheet-like thin film PTC thermistor. The traditional point-like thermistor or point-like thermocouple is replaced with a sheet-like thin film PTC thermistor, which is wrapped in the area that needs to be sensed outside the resistance heating film layer 20, and then fixed with a high-temperature heat shrink tubing. When the heating component is working, the higher its surface temperature, the closer the contact between the sheet-like thin film PTC thermistor and the resistance heating film layer 20, the more accurate the temperature sensing, and the larger the temperature sensing area, the more complete the collected temperature data.

[0067] The manufacturing process of the sheet-shaped thin film PTC thermistor according to the embodiment of the present invention is as follows:

[0068] 1. Metals with large TCR (temperature coefficient of resistance) values ​​and high resistivity (such as SUS430, SUS316, nickel, iron-nickel alloy, etc.) are made into sheets of 0.02 mm or thinner.

[0069] 2. Compound the metal sheet with a 0.02-0.05 mm high temperature resistant substrate (such as polyimide, etc.).

[0070] 3. Circuit etching, etching out the desired pattern and resistance value.

[0071] 4. Solder the leads and the thin film thermistor is completed.

[0072] Furthermore, if Figure 4 As shown, the light wave heating component 100 of the present invention further includes a reflective heat-dissipating layer 50 disposed between the electrode layer 30 and the thin film thermal sensitive temperature layer 40 .

[0073] The reflective heat-averaging layer 50 allows a large amount of light waves generated by the resistance heating film layer 20 to penetrate into the interior of the heated substance through reflection, heating the interior thereof, thereby achieving the effect of rapid temperature rise and uniform temperature inside and outside.

[0074] The reflective heat-dissipating layer 50 may be made of materials such as graphene and high-temperature heat-reflective coating.

[0075] Please continue to refer to Figure 2 and Figure 3 The resistance heating film layer 20 of the light wave heating component 100 of the present invention includes a plurality of spaced regions, each of which is provided with a positive electrode layer 31 and a negative electrode layer 32 to independently supply power to each region. In this way, the resistance heating film layer 20 can be divided into different regions for separate heating, thereby achieving controllable heating of the entire light wave heating component 100.

[0076] At present, most heat-not-burn electronic cigarettes in the prior art use circumferential heating, and the tobacco is heated over a relatively large area. During the rapid preheating process, the water vapor in the tobacco is vaporized, and the mouth is burned when taking the first puff. However, after the resistive heating film layer 20 is divided into multiple independent heating areas, the entire resistive heating film layer 20 can be controlled to heat, so that the temperature of the generated aerosol can be adjusted to prevent users from burning their mouths when using it.

[0077] The present invention divides the heating area of ​​the resistance heating film layer 20 into multiple areas (upper and lower areas and circumferential areas). In the preheating stage, all power can be concentrated in one area to allow one area to heat up quickly, and the other area can be heated slowly or only by conduction heating through the tube wall. In this way, smoke can be discharged quickly and the hot steam can be mixed with a part of the air with a lower temperature when taking the first puff, thereby solving the problem of steam burning the mouth. When taking the second puff, the steam in the tobacco has been completely evaporated and there will be no problem of burning the mouth.

[0078] Preferably, the multiple independent heating areas of the resistance heating film layer 20 of the light wave heating component 100 of the present invention are arranged at intervals along the longitudinal direction of the light-transmitting substrate 10, thereby forming a segmented heating method.

[0079] like Figure 2 and Figure 3 As shown in , the resistance heating film layer 20 of this embodiment is divided into an independent first heating area 23, a second heating area 24, and a third heating area 25 from top to bottom on the tubular light-transmitting substrate 10. The first heating area 23, the second heating area 24, and the third heating area 25 are each individually provided with their own positive electrode layer 31 and negative electrode layer 32 to perform separate power-on control on each heating area. For example, in order to prevent the problem of burning the mouth when taking the first puff, the heating function of the first heating area 23 and the second heating area 24 can be turned off, and only the third heating area 25 can be used. The third heating area 25 corresponds to heating the tobacco in the light-transmitting substrate 10, and the water vapor in the tobacco is vaporized into high-temperature water vapor. The high-temperature water vapor will cool down after flowing upward through the low-temperature area inside the light-transmitting substrate 10 corresponding to the second heating area 24 and the first heating area 23, thereby avoiding the problem of burning the mouth when taking the first puff. It can be understood that in other embodiments, the resistance heating film layer 20 can also be divided into independent 2, 4, 5, 6, etc. multiple areas from top to bottom. In other embodiments, the resistance heating film layer 20 may also be divided into 2, 3, 4, 5, 6 or other independent regions from left to right.

[0080] Preferably, independent thin film thermal sensitive temperature layers 40 are disposed on multiple regions of the resistance heating film layer 20 of the present invention to perform independent temperature sensing monitoring on the heating temperature of each region.

[0081] The light wave heating assembly 100 of the present invention has at least three processing schemes:

[0082] Solution 1: A layer of nano ATO light wave heating film is plated on the outer surface of a tubular high temperature resistant and light transmissive substrate 10 (quartz glass, high borosilicate glass, etc.), and electrodes are screen printed on the surface of the light wave heating film layer for power supply (the electrode pattern can be made into upper and lower electrodes, left and right electrodes, and special-shaped electrodes according to actual needs); the heating film layer can be divided into multiple areas (left and right partitions, upper and lower partitions); the heating film has efficient heating capacity and light wave emission penetration ability when the electrodes are powered. When it is necessary to heat the tobacco in the tube, the heating film heats up rapidly under the drive of electricity, so that the heating surface of the substrate 10 fully contacts the substance to be heated. At the same time, a light wave reflection and heat equalization layer is set or screen printed outside the electrode layer outside the light transmissive heating tube substrate, so that a large number of light waves generated by the heating film can penetrate into the interior of the heated substance through the reflection film of the reflection and heat equalization layer or the reflection film of the aerosol generating component, and heat the interior, thereby achieving the effect of rapid heating and uniform temperature inside and outside.

[0083] Solution 1 process flow:

[0084] Preparation of raw material solution of nano ATO light wave heating film -> cleaning of light-transmitting substrate -> frosting (optional) -> cleaning -> spraying / coating (spraying times determined according to actual needs) -> film removal -> electrode printing -> sintering -> positioning groove opening -> screen printing of infrared reflective heat-dissipating layer.

[0085] Solution 2: Print the resistor paste on the outer surface of the tubular light-transmitting substrate 10 (quartz glass, high borosilicate glass) and sinter at high temperature to obtain a resistance heating film layer, and then print the positive and negative electrodes on the sintered resistance film layer and sinter and solidify again; the heating film layer has high-efficiency heating capacity and light wave emission penetration capacity. When the tobacco in the tube needs to be heated, the heating film layer is driven by the electrode power supply to heat up quickly, so that the heating surface of the substrate 10 is fully in contact with the substance to be heated, and a light wave reflection and heat-averaging layer is set or silk-screened on the outside of the electrode layer of the light-transmitting heating tube substrate, so that a large number of light waves generated by the electric heating film can penetrate into the interior of the heated substance through the reflection film of the reflection and heat-averaging layer or the reflection film of the aerosol generating component, and heat the interior, thereby achieving the effect of rapid heating and uniform temperature inside and outside.

[0086] Solution 2 process flow:

[0087] Resistor slurry preparation -> light-transmitting substrate cleaning -> frosting -> cleaning -> drying -> heating film screen printing -> heating film layer sintering -> electrode screen printing -> electrode sintering -> positioning groove opening -> screen printing or installation of heating and heat-absorbing layer.

[0088] Solution 3: Pure metal or metal alloy (such as nickel, 430 steel, iron-chromium-aluminum alloy, 316 steel, iron-nickel alloy, etc.) is made into a 0.02mm-0.03mm thin sheet, and then it is compounded on a 0.02mm-0.05mm high-temperature resistant substrate (such as polyimide, etc.), and a heating circuit is made by developing and etching, and then infrared light wave slurry is screen-printed on its surface and sintered and solidified to make a high-efficiency heating film, and finally it is fixed on a tubular light-transmitting substrate 10 (quartz glass, high borosilicate glass). The heating film also has high-efficiency heating capacity and light wave emission and penetration capabilities. At the same time, a light wave reflection film is coated on the electrode layer outside the transparent heating tube substrate, so that a large number of light waves generated by the heating film can be reflected by the reflection film and penetrate into the interior of the heated substance, heating the interior, thereby achieving the effect of rapid heating and uniform temperature inside and outside.

[0089] Scheme 3 process flow:

[0090] Ultra-thin metal or alloy heating sheet manufacturing -> heating sheet and high temperature resistant material composite -> etching (development) circuit manufacturing -> light wave slurry screen printing -> sintering -> electrode welding -> heating film fixed on quartz or high borosilicate glass -> reflective film or reflective sleeve installed and fixed.

[0091] refer to Figure 5 and Figure 6 The present invention further provides an aerosol generating device 200, which includes the above-mentioned light wave heating component 100. In this way, the aerosol generating device 200 of the embodiment of the present invention can heat the tobacco to be heated material through the heat radiation of the light wave, so that the aerosol generating device 200 of the present invention has high electric-to-heat efficiency and uniform heating.

[0092] Specifically, the aerosol generating device 200 also includes an insulation tube 201, an upper bracket 202, a lower bracket 203 and an air intake bracket 204. The light wave heating component 100 is accommodated in the insulation tube 201. The upper bracket 202 and the lower bracket 203 are respectively sealed at both ends of the insulation tube 201, and the air intake bracket 204 is arranged at the bottom of the lower bracket 203.

[0093] The heat-insulating tube 201 can isolate and protect the light wave heating component 100 , and can reduce the heat loss of the light wave heating component 100 therein, improve the heating efficiency, and protect the surrounding components from being affected by high temperature.

[0094] The upper bracket 202 and the lower bracket 203 are used for supporting and fixing, so as to facilitate the installation of the aerosol generating device 200 inside the electronic cigarette and other equipment. Preferably, the upper bracket 202 and the lower bracket 203 of the present invention are both made of PEEK brackets, which is a high-performance special engineering plastic with advantages such as high temperature resistance and good mechanical properties.

[0095] The air intake bracket 204 is used for air intake of the entire aerosol generating device 200 . During inhalation, the gas enters the heat insulation tube 201 from the air intake bracket 204 and flows through the light wave heating component 100 .

[0096] Preferably, the connection between the upper bracket 202, the lower bracket 203 and the insulation pipe 201 of the embodiment of the present invention is configured as follows: Figure 6 As shown, an upper sealing ring 205 is provided at the connection between the upper bracket 202 and the insulation tube 201, and a lower sealing ring 206 is provided at the connection between the lower bracket 203 and the insulation tube 201. The upper sealing ring 205 and the lower sealing ring 206 can be made of silicone. The provision of the upper sealing ring 205 and the lower sealing ring 206 enhances the airtightness of the aerosol generating device 200 to prevent air leakage.

[0097] The light wave heating component 100 and the aerosol generating device 200 of the embodiment of the present invention can heat the tobacco in the tube with the maximum contact area, so that the heated material is heated more evenly. In addition, because the substrate 10 of the heating component 100 itself is transparent, and the resistance heating film layer 20 can emit light waves, a large number of light waves are emitted to penetrate the gaps between the transparent substrate 10 and the tobacco and reach the center of the heated tobacco directly. The light wave has strong penetrating power and can easily resonate with the tobacco molecules, so that the heated tobacco is heated evenly inside and outside, thereby achieving an ideal aerosol generation effect.

[0098] The above description is only an example to clearly illustrate the present invention, and does not limit the patent scope of the present invention. It is impossible to list all the implementation methods here. All equivalent structural changes made by using the contents of the technical solution of the present invention under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A light wave heating component, characterized in that: include: A light-transmitting substrate having an inner surface and an outer surface; A resistance heating film layer, wherein the resistance heating film layer is arranged on the outer surface or the inner surface of the light-transmitting substrate; An electrode layer, the electrode layer is arranged on a side of the resistive heating film layer away from the light-transmitting substrate, and the electrode layer includes a positive electrode layer and a negative electrode layer that are separated and arranged on the resistive heating film layer; After being energized, the resistance heating film layer emits light waves to pass through the light-transmitting substrate to heat the material to be heated on the inner surface or the outer surface of the light-transmitting substrate.

2. The light wave heating assembly according to claim 1, characterized in that: The invention also comprises a thin film thermally sensitive temperature layer arranged on the electrode layer.

3. The light wave heating assembly according to claim 2, characterized in that: It also includes a reflective heat-averaging layer disposed between the electrode layer and the thin-film thermally sensitive temperature layer.

4. The light wave heating assembly according to claim 1, characterized in that: The light-transmitting substrate is a tubular structure.

5. The light wave heating assembly according to claim 1, characterized in that: The resistance heating film layer includes a plurality of spaced regions, each of which is provided with a positive electrode layer and a negative electrode layer so as to independently supply power to each region.

6. The light wave heating assembly according to claim 1, characterized in that: The resistance heating film layer is a nano ATO light wave heating film.

7. The light wave heating assembly according to claim 6, characterized in that: The nano-ATO light wave heating film is prepared by placing the nano-ATO raw material on the light-transmitting substrate through a film-forming process. The components of the nano-ATO raw material include: 30% to 50% of stannous chloride or tin tetrachloride, 0.5% to 5% of antimony trichloride, 0.5% to 10% of bismuth trioxide, 30% to 65% of anhydrous ethanol, 0.5% to 8% of magnesium chloride, and 0.5% to 9% of manganese chloride.

8. The light wave heating assembly according to claim 1, characterized in that: The resistance heating film layer is provided with a resistance paste on the light-transmitting substrate by a silk-screen printing process, and the components of the resistance paste include: 50% to 65% carbon powder or graphene powder, 0.5% to 5% pine oil, 0.5% to 10% glass powder, and 30% to 40% high-temperature resin.

9. The light wave heating assembly according to claim 1, characterized in that: The resistance heating film layer is made of metal sheets and light wave slurry, and the light wave slurry at least includes one or more of calcium powder, magnesium powder, silicon carbide, manganese oxide, and ferrosilicon.

10. The light wave heating assembly according to claim 2, characterized in that: The thin film thermal sensitive temperature layer is a sheet-shaped thin film type PTC thermistor.

11. An aerosol generating device, characterized in that: It comprises the light wave heating component as described in any one of claims 1-10.

12. The aerosol generating device according to claim 11, characterized in that The aerosol generating device also includes a heat-insulating tube, an upper bracket, a lower bracket and an air inlet bracket; The light wave heating component is accommodated in the heat insulation tube, and the upper bracket and the lower bracket are respectively and sealedly arranged at both ends of the heat insulation tube, and the air intake bracket is arranged at the bottom of the lower bracket.

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