WO2023216701A1 - Ensemble de chauffage et dispositif de génération d'aérosol - Google Patents

Ensemble de chauffage et dispositif de génération d'aérosol Download PDF

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Publication number
WO2023216701A1
WO2023216701A1 PCT/CN2023/080560 CN2023080560W WO2023216701A1 WO 2023216701 A1 WO2023216701 A1 WO 2023216701A1 CN 2023080560 W CN2023080560 W CN 2023080560W WO 2023216701 A1 WO2023216701 A1 WO 2023216701A1
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WO
WIPO (PCT)
Prior art keywords
heating
layer
conductive coil
base
heating component
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Application number
PCT/CN2023/080560
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English (en)
Chinese (zh)
Inventor
黄鹏飞
郭玉
郭聪慧
刘小力
黄祖富
冼小毅
周亚林
Original Assignee
深圳麦时科技有限公司
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Publication of WO2023216701A1 publication Critical patent/WO2023216701A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating

Definitions

  • the present invention relates to the technical field of electronic atomization, and in particular to a heating component and an aerosol generating device.
  • Low-temperature baking aerosol generating devices have attracted more and more attention and favor due to their advantages such as safety, convenience, health, and environmental protection.
  • Existing aerosol generating devices are used to heat and atomize aerosol-generating products because infrared heating has good heating uniformity and is easy to implement. However, the existing aerosol generating device has a slow mist emitting speed, low heat utilization rate and low heating efficiency.
  • This application provides a heating component and an aerosol generating device, aiming to solve the problems of slow mist emitting speed, low heat utilization rate and low heating efficiency of existing aerosol generating devices.
  • the heating component includes: a base body, which is in the shape of a hollow tube; a radiation heating layer, which is arranged on the side of the inner wall of the base body, for radiating rays when heated; a conductive coil, which is arranged around the base body and is used for generating electricity when energized. Vary the magnetic field to heat the radiant heating layer.
  • the changing magnetic field generated when the conductive coil is energized causes the base body to generate eddy currents and heat up to heat the radiation heating layer.
  • the base is a metal base material.
  • the heating component further includes an insulating layer, the insulating layer is arranged between the outer wall surface of the base body and the conductive coil, and the conductive coil is arranged around the insulating layer.
  • the changing magnetic field generated when the conductive coil is energized causes the radiation heating layer to generate eddy currents and be heated.
  • the base is an insulating base material, and the radiation heating layer is doped with metal particles.
  • the heating component further includes a reflective layer, which is arranged around the outside of the radiation heating layer and used to reflect rays radiated by the radiation heating layer.
  • the reflective layer is stacked on the side of the conductive coil away from the base body and is disposed around the conductive coil to reflect the heating rays emitted by the radiation heating layer.
  • the heating component further includes a protective layer, which is stacked on the side of the radiation heating layer facing away from the base.
  • the conductive coil is evenly wound around the outer wall surface of the base body; or the conductive coil includes a connected first line segment and a second line segment, the first line segment and the second line segment are evenly wound around the outer wall surface of the base body, wherein the first line segment The winding density is greater than the winding density of the second line segment; or the conductive coil includes a first conductor and a second conductor that are spaced apart, the first conductor and the second conductor are evenly wound on the outer wall of the base body, and the first conductor and the second conductor The conductors are interlaced and wound, wherein the first conductor and the second conductor can be selectively connected.
  • the conductive coil has a linear resistance temperature coefficient
  • the heating component also includes a detection circuit.
  • the detection circuit is used to detect the electrical parameters of the conductive coil to characterize the temperature of the radiation heating layer.
  • the radiation heating layer is an infrared layer.
  • the aerosol generating device includes: a heating component used to heat and atomize the aerosol-generating product when power is applied, and the heating component is the above-mentioned heating component; a power supply component electrically connected to the heating component and used to supply power to the heating component .
  • Embodiments of the present application provide a heating component and an aerosol generating device.
  • the heating component is provided with a base body to accommodate the aerosol-generating product through the base body.
  • a radiation heating layer on the side where the inner wall surface of the base is located, it radiates rays when it is heated, thereby using the radiated rays to heat and atomize the aerosol-generating product, which can effectively reduce the internal and external stress of the aerosol-generating product. temperature difference, thereby improving the heating uniformity of the aerosol-generating product.
  • the radiant heating layer can directly heat the aerosol-generating product without penetrating the base body, which not only avoids the risk of the rays penetrating the base body. Attenuation effectively increases the heating rate and fogging rate of aerosol-generating products, ensuring a sufficient amount of fogging; and due to the existence of the matrix, the matrix can be used to block rays from radiating to the outside and reflect them to the interior of the matrix, reducing heat. loss, improving the heating efficiency of the heating component.
  • setting up a conductive coil to produce changes in the The magnetic field causes the radiation heating layer to heat up and be excited to radiate heating rays.
  • Figure 1 is a schematic structural diagram of a heating assembly provided by an embodiment of the present application.
  • Figure 2 is a side wall cross-sectional view of the first embodiment of the heating assembly that generates heat from the base;
  • Figure 3 is a schematic structural diagram of a conductive coil of a heating assembly provided by an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a conductive coil of a heating assembly provided by another embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a conductive coil of a heating assembly provided by another embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a conductive coil of a heating assembly provided by yet another embodiment of the present application.
  • Figure 7 is a side wall cross-sectional view of a second embodiment of a base-heated heating assembly
  • Figure 8 is a side wall cross-sectional view of a third embodiment of a base-heated heating assembly
  • Figure 9 is a side wall cross-sectional view of a fourth embodiment of a base-heated heating assembly
  • Figure 10 is a side wall cross-sectional view of a fifth embodiment of a base-heated heating assembly
  • Figure 11 is a side wall cross-sectional view of a sixth embodiment of a base-heated heating assembly
  • Figure 12 is a side wall cross-sectional view of the first embodiment of the heating assembly that generates heat from the radiant heating layer;
  • Figure 13 is a side wall cross-sectional view of a second embodiment of a heating component with a radiant heating layer
  • Figure 14 is a side wall cross-sectional view of a third embodiment of a heating component with a radiant heating layer
  • Figure 15 is a side wall cross-sectional view of a fourth embodiment of a heating component with a radiant heating layer
  • Figure 16 is a side wall cross-sectional view of a fifth embodiment of a heating assembly with a radiant heating layer
  • Figure 17 is a side wall cross-sectional view of a sixth embodiment of a heating component with a radiant heating layer
  • Figure 18 is a side wall cross-sectional view of a seventh embodiment of a heating assembly with a radiant heating layer
  • Figure 19 is a side wall cross-sectional view of an eighth embodiment of a heating component with a radiant heating layer
  • Figure 20 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application.
  • first”, “second” and “third” in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as “first”, “second”, and “third” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. All directional indications (such as up, down, left, right, front, back%) in the embodiments of this application are only used to explain the relative positional relationship between components in a specific posture (as shown in the drawings). , sports conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • FIG. 1 is a schematic structural diagram of a heating assembly provided by an embodiment of the present application.
  • a heating component 30 is provided, which is used to heat and atomize the aerosol-generating product when energized to form an aerosol.
  • the heating component 30 can be used in different fields, such as medical treatment, beauty, recreational smoking and other fields.
  • the aerosol-generating product preferably uses a solid matrix, which may include plant leaves such as vanilla leaves, tea leaves, mint leaves, and one or more of powders, granules, fragments, strips, or flakes; Alternatively, the solid matrix may contain additional volatile fragrance compounds that are released when the matrix is heated.
  • aerosol-generating products can also be liquid bases or paste bases, such as oils and medicinal liquids with added aroma components. The following examples all take the aerosol-generating product using a solid matrix as an example.
  • the heating component 30 specifically includes a base 31 , a radiation heating layer 32 and a conductive coil 33 .
  • the base body 31 is in the shape of a hollow tube, and its inner wall is surrounded to form a receiving cavity, and the aerosol-generating product is removably received in the receiving cavity.
  • the radiant heating layer 32 is disposed on the side where the inner wall surface of the base 31 is located, that is, the radiant heating layer 32 is located inside the base 31 and is used to radiate rays when heated to heat the aerosol-generating product; the conductive coil 33 surrounds the base 31 It is configured to generate a changing magnetic field when energized to heat the radiation heating layer 32, so that the radiation heating layer 32 heats up and is excited to radiate rays.
  • the base 31 is made of a material that can induce a changing magnetic field to generate eddy currents and generate heat; it induces magnetic field changes in the high-frequency changing magnetic field generated by the conductive coil 33 to generate eddy currents and generate heat. , thereby converting electrical energy into thermal energy, and then transferring the heat to the radiant heating layer 32 through thermal conduction, so that the radiant heating layer 32 heats up and is excited, and then radiates heating rays to heat the aerosol-generating product.
  • the base 31 may be a metal base material, such as pure iron, stainless steel, silicon steel, carbon steel, iron alloy and other ferrite base materials.
  • the inner wall surface of the base body 31 can also be provided with a mirror effect, for example, the inner wall surface of the base body 31 is polished, so that when the heating component 30 is working, the inner wall surface of the base body 31 can also reflect the heating rays emitted to the inner wall surface.
  • the aerosol-generating product is heated and atomized inside the base 31 , which effectively reduces heat loss and improves the heating efficiency of the heating component 30 .
  • the base 31 can be made of metal such as pure iron or stainless steel, so that the inner wall surface of the base 31 can be polished to have a mirror effect.
  • FIG. 2 is a side wall cross-sectional view of the first embodiment of the heating component that generates heat from the base.
  • the radiation heating layer 32 is stacked on the inner wall surface of the side wall of the base 31 .
  • other dielectric layers may also be provided between the radiant heating layer 32 and the base 31, such as a reflective layer 36 or a thermal insulation layer; this application is not limited to this, as long as the radiant heating layer 32 is located on the base.
  • the side where the inner wall is located is sufficient.
  • the radiation heating layer 32 may be an infrared layer, and the heating rays radiated by the infrared layer when heated are infrared rays. Since infrared rays have strong thermal radiation capabilities, the infrared rays can penetrate the interior of the aerosol-generating product and treat the aerosol-generating product. The entire inside and outside are heated at the same time, which reduces the temperature difference between the inside and outside of aerosol-generating products. Compared with conventional resistance heating or electromagnetic heating, infrared heating has better heating uniformity and can avoid aerosols caused by local high temperatures. The product is burned.
  • the radiation heating layer 32 may be a far-infrared ceramic layer, a metal layer or a conductive carbon layer, which may be selected according to needs.
  • the radiant heating layer 32 is an infrared ceramic coating, and the radiant heating layer 32 radiates radiation when working. Emit infrared rays to heat aerosol to produce products.
  • the wavelength of infrared heating is 2.5um ⁇ 20um. Due to the characteristics of heated aerosol-generated products, the heating temperature usually reaches about 350°C, and the extreme value of energy radiation is mainly in the 3 ⁇ 5um band.
  • the radiant heating layer 32 may be formed on the inner wall surface of the side wall of the base body 31 by silk screen printing, coating, sputtering, printing or tape casting.
  • the shape, area, and thickness of the radiant heating layer 32 can be set according to actual needs; for example, the shape, area, and thickness of the radiant heating layer 32 can be set according to a preset plan of the temperature field of the heating component 30 .
  • the shape of the radiant heating layer 32 can be a continuous film, a porous mesh or a strip, etc. Specifically, it can be made into a film-like surface to generate heat.
  • the thickness of the radiant heating layer 32 everywhere on the base 31 is usually the same; of course, for some special needs, the thickness of the radiant heating layer 32 everywhere on the base 31 may also vary. It can be set to be different, so that the infrared energy density of different areas of the heating component 30 is different, that is, when the heating component 30 is powered on, the heat density of different areas is different to form different temperature fields.
  • the heating component 30 also includes an insulating layer 34.
  • the insulating layer 34 is disposed on the outer wall surface of the side wall of the base 31.
  • the conductive coil 33 is specifically arranged around the surface of the insulating layer 34 away from the base 31. This is to avoid short circuit between the conductive coil 33 and the base 31 when the heating component 30 is powered on.
  • the material of the insulating layer 34 can be ceramic, quartz glass, mica and other high-temperature resistant insulating materials; it can be formed on the outer wall surface of the base 31 by silk screen printing, coating, sputtering, printing or tape casting.
  • the conductive coil 33 can be made of conductive metal, such as copper, aluminum, silver, etc. In this embodiment, it is preferred that the conductive coil 33 is a metal coil made of copper.
  • the conductive coil 33 can be an enameled wire wound around the outer wall of the base 31; it can be understood that in this embodiment, the paint outside the wire is an insulating material to prevent short circuit problems between the coils.
  • the conductive coil 33 can also be deposited on the outer wall surface of the base body 31 by silk screen printing, coating, sputtering, printing, etc.
  • the inventor of the present application has discovered through extensive research that when the conductive coil 33 is energized, it will generate a certain amount of heat, and this part of the heat is usually easily ignored and leads to heat loss; in order to avoid this part of the heat loss, the conductive coil 33 can be reduced as much as possible. Heat is generated, and at the same time, the heat generated by the conductive coil 33 can be conducted to the base 31 or the radiation heating layer 32 . Specifically, the conductive coil 33 is wound around the base 31. When its winding density remains unchanged, that is, when the number of turns of the conductive coil 33 per unit length remains unchanged, the conductive coil 33 is electrically conductive.
  • the smaller the volume of the coil 33, the thinner the conductive coil 33, and the smaller its cross-sectional area, the smaller the current flowing through it; according to the heat calculation formula: Q UIt, where Q is the heat generated by the resistance, and U is The voltage across the resistor, I is the current flowing through the resistor, and t is the time. It can be seen that at this time, the conductive coil 33 itself generates less heat; that is, under the premise that the winding density of the conductive coil 33 remains unchanged, the conductive coil 33 The smaller the volume, the less heat it generates. In specific embodiments, for example, the conductive coil 33 formed on the base 31 by silk screen, sputtering, printing, etc.
  • the conductive coil 33 can be 33a/33b/33c involved in the following embodiments.
  • FIG. 3 is a schematic structural diagram of the conductive coil of the heating component 30 provided by an embodiment of the present application.
  • the conductive coil 33a is evenly wound on the outer wall surface of the base 31, that is, the winding density is the same everywhere on the base 31 corresponding to the area where the conductive coil 33a is located, so that the conductive coil 33a generates a uniformly changing magnetic field everywhere.
  • the base 31 or the radiation heating layer 32 induces a uniformly changing magnetic field to generate eddy currents, so that the temperature rise rate is the same everywhere. That is, the temperature of the base 31 or the radiation heating layer 32 corresponding to the area where the conductive coil 33a is located is the same.
  • the heating component 30 to heat the aerosol-generating product with better uniformity. Since the winding density of the conductive coil 33a is positively correlated with the heating rate, the temperature field of the heating component can be preset by simply setting the winding density of the conductive coil to achieve the best preheating effect, making the technical solution relatively simple. No additional components are required.
  • FIG. 4 is a schematic structural diagram of a conductive coil of a heating assembly provided by another embodiment of the present application.
  • the conductive coil 33b includes a connected first line segment 331b and a second line segment 332b.
  • the first line segment 331b and the second line segment 332b are evenly wound on the outer wall surface of the base 31, and the winding density of the first line segment 331b is greater than that of the second line segment.
  • the convolution density of 332b is a schematic structural diagram of a conductive coil of a heating assembly provided by another embodiment of the present application.
  • the conductive coil 33b includes a connected first line segment 331b and a second line segment 332b.
  • the first line segment 331b and the second line segment 332b are evenly wound on the outer wall surface of the base 31, and the winding density of the first line segment 331b is greater than that of the second line segment.
  • the convolution density of 332b is a schematic structural diagram of a conductive coil of a heating assembly provided by
  • the intensity of the changing magnetic field generated by the first line segment 331b is greater than the intensity of the changing magnetic field generated by the second line segment 332b, so that the base 31 or the radiation heating layer 32 corresponds to the location of the first line segment 331b.
  • the heating rate of the area is greater than the heating rate of the area where the corresponding second line segment 332b is located, thereby achieving rapid heating of the local area of the heating component 30, so that the heating component 30 can first heat the local aerosol-generating product in the initial stage of heating, effectively ensuring the heating Sufficient amount of mist in the initial stage. Therefore, you can choose to
  • the first line segment 331b is provided on the corresponding area of the heating component 30 that needs to be quickly heated.
  • the winding density of the first line segment 331 b and the second line segment 332 b as well as their position and area on the base 31 can be set according to actual needs to meet the heating requirements of the heating component 30 .
  • the conductive coil 33b can also include a third line segment, a fourth line segment, a fifth line segment, etc.
  • the winding density of the third line segment, the fourth line segment, the fifth line segment, etc., as well as their position and area on the base 31 can be determined as needed.
  • gradient heating of the heating component 30 can also be achieved, so that the heating component 30 can ensure a suitable amount of mist and a better suction experience during the entire heating process.
  • Figure 5 is a schematic structural diagram of a conductive coil of a heating component provided by yet another embodiment of the present application.
  • Figure 6 is a schematic diagram of a conductive coil of a heating component provided by yet another embodiment of the present application. Schematic diagram of the coil structure.
  • the conductive coil 33c includes spaced apart first conductors 331c and second conductors 332c.
  • the first conductors 331c and the second conductors 332c are evenly wound on the outer wall surface of the base 31, and the first conductors 331c and the second conductors 332c are interlacedly wound, wherein
  • the first conductive line 331c and the second conductive line 332c may be selectively conductive.
  • the first conductor 331c and the second conductor 332c are interlacedly wound on the base 31 at intervals, and the winding density of the first conductor 331c is greater than the winding density of the second conductor 332c.
  • the heating component 30 can be controlled to turn on different heating gears during different heating periods. In the early stage of heating, it is controlled to be turned on to the first stage, that is, the first wire 331c is turned on. In the middle and later stages of heating, it is controlled to be turned on.
  • the second gear is to connect the second wire 332c.
  • the conductive coil 33c can also include a third wire, a fourth wire, etc., and correspondingly, the heating gear can also be set to a third gear, a fourth gear, etc. More gears enable gradient heating of the heating component 30, thereby ensuring a suitable amount of mist and a better suction experience during the entire heating process.
  • the conductive coils 33/33a/33b/33c may also have linear temperature coefficient of resistance (TCR) characteristics, allowing them to serve as temperature sensors.
  • the heating component 30 also includes a detection circuit 37.
  • the detection circuit 37 is electrically connected to the conductive coil 33/33a/33b/33c to detect the electrical parameters of the conductive coil 33/33a/33b/33c.
  • the electrical parameters can be specifically: The current value or resistance value then characterizes the heating temperature of the radiation heating layer 32 according to the detected electrical parameters and TCR characteristics.
  • the resistance value of the conductive coil 33/33a/33b/33c has a monotonic one-to-one correspondence with its own temperature value, that is, each resistance value corresponds to a different temperature value, and the resistance value of the conductive coil 33/33a/33b/33c increases with the increase of its temperature value, or the resistance value decreases with the increase of its temperature value; usually, the conductive coil 33/33a/33b
  • the voltage across /33c is constant. According to Ohm's law, the current value flowing through the conductive coil 33/33a/33b/33c is inversely proportional to its resistance value.
  • the detection circuit 37 can detect the conductive coil 33/33a/33b/
  • the current value or resistance value of 33c represents the temperature value of the heating component 30, thereby realizing the temperature measurement function of the heating component 30 to regulate the temperature field of the heating component 30 according to the temperature value to ensure a more balanced amount of mist during the heating process.
  • the heating component 30 does not need to add additional temperature sensing devices such as temperature sensors, thereby making the heating component 30 smaller in size, and the volume of its product is also smaller. Small, such as aerosol-generating devices, are smaller in size, making them more convenient to carry and use.
  • FIG. 7 is a side wall cross-sectional view of a second embodiment of a heating component that generates heat from a base.
  • the heating component 30 further includes a reflective layer 36 , which is disposed around the outside of the radiation heating layer 32 and used to reflect rays radiated by the radiation heating layer 32 .
  • the radiant heating layer 32 when the heating component 30 is powered on and heated, not only radiates rays to the receiving cavity in the base 31 to heat and atomize the aerosol-generating product, but also radiates rays to the outside of the base 31 and is disposed on the radiant heating layer 32
  • the outer reflective layer 36 can prevent part of the rays from being emitted to the outside of the base 31 and reflect the part of the rays back to the receiving cavity inside the base 31 to heat and atomize the aerosol-generating product, thereby reducing the heat of the heating component 30 loss, improving the heating efficiency of the heating component 30.
  • the reflective layer 36 can be made of a material with low infrared emissivity, such as aluminum, gold, silver and other metal materials or high-temperature resistant polymer materials such as PI film. Generally, the reflective layer 36 of metal material has better reflection effect and high temperature resistance effect. Well, the reflective layer 36 is generally made of metal. In order to further improve the reflection effect, the reflective layer 36 can also have a mirror effect, so that all the radiated rays are reflected back into the base 31 , thereby reducing the heat loss of the heating component 30 and increasing the heating efficiency.
  • the reflective layer 36 can be specifically coated, The film is formed on the base 31 by sputtering, printing or metal plating.
  • the reflective layer 36 can be provided around the side of the conductive coil 33 / 33 a / 33 b / 33 c away from the base 31 to prevent the heating rays radiated by the radiant heating layer 32 from going outside the heating component 30 The radiation results in heat loss, and this part of the heating ray is reflected back to the receiving cavity in the base 31 .
  • the reflective layer 36 is made of metal, a short circuit problem may easily occur between the conductive coil 33/33a/33b/33c and the reflective layer 36 when the conductive coil 33/33a/33b/33c is energized.
  • An insulating layer 34 is also provided between 33c and the reflective layer 36 to ensure the insulation between the conductive coil 33/33a/33b/33c and the reflective layer 36.
  • the specific materials and processes of the insulating layer 34 are the same as above and will not be repeated here. Repeat.
  • FIG. 9 is a schematic structural diagram of a conductive coil of a heating assembly provided by yet another embodiment of the present application.
  • the reflective layer 36 is disposed on the outer wall surface of the side wall of the base 31 and is located between the base 31 and the insulating layer 34 .
  • FIG. 10 is a schematic structural diagram of a conductive coil of a heating assembly provided by yet another embodiment of the present application.
  • the reflective layer 36 can also be disposed on a side surface of the base 31 close to the radiation heating layer 32 , and is located between the base 31 and the radiation heating layer 32 , so that the outwardly radiating heating rays do not pass through the base 31 .
  • the direct reflection by the reflective layer 36 back to the receiving cavity in the base 31 further shortens the path of the heating rays radiated outwardly by the radiant heating layer 32, thereby reducing the attenuation of the heating rays and further improving the heating efficiency.
  • Figure 11 is a side wall cross-sectional view of a sixth embodiment of a base-heated heating component; in this embodiment, the heating component 30 also includes a protective layer 35, which is stacked on the radiant heating element. The side of the layer 32 facing away from the base 31, and the protective layer 35 completely covers the radiant heating layer 32 to prevent the radiant heating layer 32 from contacting the aerosol-generating product, causing the radiant heating layer 32 to be scratched or stained by the aerosol-generating product. problem occurs.
  • the protective layer 35 can be an infrared-transmissive high-temperature-resistant material, such as transparent ceramic enamel, infrared-transparent glass, etc., which can not only protect the radiation heating layer 32 from being scratched or stained, but also make the heating rays transparent. However, the heating effect of the heating component 30 will not be affected.
  • the radiant heating layer 32 itself does not self-heat, but the changing magnetic field generated by the conductive coil 33/33a/33b/33c when energized causes the base 31 to generate eddy currents to heat up, and then the heat is transferred through thermal conduction. is transferred to the radiation heating layer 32, thereby causing the radiation heating layer 32 to heat up and be excited, The aerosol-generating article is heated and atomized with radiation rays.
  • Figures 12-19 are side wall cross-sectional views of an embodiment of a heating component that generates heat from a radiant heating layer.
  • the radiation heating layer 32 is doped with metal particles; the conductive coil 33/33a/33b/33c generates a changing magnetic field when energized, and the metal particles in the radiation heating layer 32 sense the changing magnetic field and generate The eddy current increases the temperature, causing the radiation heating layer 32 to be excited, so that the radiation heating rays heat and atomize the aerosol-generating product.
  • the radiation heating layer 32 contains metal particles, and the metal particles may specifically be ferrite metal particles, such as pure iron particles, stainless steel particles, carbon steel particles, silicon steel particles, or iron alloy particles.
  • FIG. 12 is a side wall cross-sectional view of the first embodiment of the heating component that generates heat from the radiant heating layer.
  • the base 31 can be made of insulating material, such as ceramic, quartz glass, mica and other high-temperature resistant insulating materials.
  • the conductive coils 33/33a/33b/33c are specifically disposed on the outer surface of the side wall of the base 31; the following embodiments take this as an example. It can be understood that in this embodiment, the insulating base 31 is not used as a heat conductive device, but is mainly used to support the radiant heating layer 32 and the conductive coils 33/33a/33b/33c, and to accommodate aerosol-generating products.
  • the base 31 can also be made of a material that can induce a changing magnetic field to generate eddy currents and generate heat; at this time, the base 31 interacts with the radiation
  • the heating layer 32 is in a changing magnetic field and generates eddy currents to heat up at the same time, thereby improving the heating efficiency.
  • the conductive coil 33 corresponding to the specific embodiment, please refer to the arrangement of the conductive coil in the embodiment of FIGS. 3-6 mentioned above.
  • the conductive coil 33 can also be disposed inside the base 31 .
  • further connections can be made between the conductive coil 33 and the radiant heating layer 32 .
  • An insulating layer 34 is provided, and the specific arrangement method may refer to the above-mentioned arrangement method of the insulating layer 34, which will not be described again here.
  • an insulating layer can be provided between the conductive coil 33/33a/33b/33c and the radiation heating layer 32 and between the conductive coil 33/33a/33b/33c and the base 31 to prevent the conductive coil 33/33a/33b/ A short circuit problem occurs between 33c and the radiant heating layer 32 or the base 31, causing the heating component 30 to fail to work properly.
  • the base 31 may be insulating or conductive, and is not limited thereto.
  • the magnetic induction element here is an element that can induce a changing magnetic field to generate eddy currents and heat up; it is easy to understand that the base 31 of the metal substrate or the radiation heating layer 32 doped with metal particles in the above embodiment is It is the magnetic induction element in the embodiment of the present application.
  • the thickness of the base 31 can be set as small as possible while meeting other requirements.
  • FIG. 20 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application.
  • the aerosol generating device includes the heating component 30 and the power supply component 10 related to the above embodiment.
  • the heating component 30 is used to heat and atomize the aerosol-generating product when the power is turned on for the user to inhale; specifically, the heating component 30 is in the shape of a hollow tube with a receiving cavity formed inside, and the aerosol-generating product can be removably received. In the containment chamber.
  • the specific structure and function of the heating component 30 can be referred to the relevant description of the heating component 30 provided in the above embodiment, and can achieve the same or similar technical effects, and will not be described again here.
  • the aerosol generating device also includes a control unit 20, which is electrically connected to the heating component 30 and the power supply component 10; specifically, the control unit 20 is connected to the conductive coils 33/33a/33b/33c of the heating component 30 and the detection circuit. 37 is electrically connected; so that when the aerosol generating device is powered on and working, the control unit 20 makes corresponding adjustments to the heating component 30 according to the temperature value detected by the detection circuit 37, for example, by adjusting the current value of the conductive coil 33/33a/33b/33c.
  • the temperature field or selectively connect the first wire 331c or the second wire 332c of the conductive coil 33/33a/33b/33c according to the temperature value, that is, selectively connect different heating gears to heat the heating component.
  • the temperature field of 30°C is controlled to increase the fogging rate when the aerosol generating device is working, and the amount of fogging is more balanced and reasonable to achieve the best atomization effect.
  • the power supply component 10 is electrically connected to the heating component 30 and the control unit 20 and is used to supply power to the heating component 30 and the control unit 20 to ensure that the aerosol generating device can operate normally.
  • the power component 10 may specifically be a dry battery, a lithium battery, etc.

Landscapes

  • Resistance Heating (AREA)

Abstract

La présente demande concerne un ensemble de chauffage et un dispositif de génération d'aérosol. L'ensemble de chauffage comprend un corps de base, une couche de chauffage par rayonnement et une bobine conductrice. Le corps de base se présente sous la forme d'un tube creux ; la couche de chauffage par rayonnement est disposée sur le côté où la surface de paroi interne du corps de base est située, et est utilisée pour rayonner des rayons lorsqu'elle est chauffée ; la bobine conductrice est disposée autour du corps de base et est utilisée pour générer un champ magnétique variable pendant la mise sous tension de façon à chauffer la couche de chauffage par rayonnement. Selon l'ensemble de chauffage, la vitesse de chauffage et le débit de sortie de vapeur d'un produit de génération d'aérosol sont efficacement améliorés, et une quantité de sortie de vapeur suffisante est garantie.
PCT/CN2023/080560 2022-05-11 2023-03-09 Ensemble de chauffage et dispositif de génération d'aérosol WO2023216701A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN114886165A (zh) * 2022-05-11 2022-08-12 深圳麦时科技有限公司 加热组件及气溶胶产生装置
CN115381142A (zh) * 2022-08-03 2022-11-25 深圳麦时科技有限公司 加热组件、雾化器及气溶胶生成装置

Citations (6)

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US20170055583A1 (en) * 2015-08-31 2017-03-02 British American Tobacco (Investments) Limited Apparatus for heating smokable material
KR20200099481A (ko) * 2019-02-14 2020-08-24 주식회사 아모센스 궐련형 전자담배장치용 발열히터 및 이를 포함하는 궐련형 전자담배장치
CN211910548U (zh) * 2020-01-13 2020-11-13 深圳市合元科技有限公司 气雾生成装置及加热器
CN112841741A (zh) * 2019-11-27 2021-05-28 深圳市合元科技有限公司 加热器以及包含该加热器的烟具
CN216147266U (zh) * 2021-07-22 2022-04-01 深圳麦克韦尔科技有限公司 加热器件及电子雾化装置
CN114886165A (zh) * 2022-05-11 2022-08-12 深圳麦时科技有限公司 加热组件及气溶胶产生装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170055583A1 (en) * 2015-08-31 2017-03-02 British American Tobacco (Investments) Limited Apparatus for heating smokable material
KR20200099481A (ko) * 2019-02-14 2020-08-24 주식회사 아모센스 궐련형 전자담배장치용 발열히터 및 이를 포함하는 궐련형 전자담배장치
CN112841741A (zh) * 2019-11-27 2021-05-28 深圳市合元科技有限公司 加热器以及包含该加热器的烟具
CN211910548U (zh) * 2020-01-13 2020-11-13 深圳市合元科技有限公司 气雾生成装置及加热器
CN216147266U (zh) * 2021-07-22 2022-04-01 深圳麦克韦尔科技有限公司 加热器件及电子雾化装置
CN114886165A (zh) * 2022-05-11 2022-08-12 深圳麦时科技有限公司 加热组件及气溶胶产生装置

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