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WO2022188786A1 - Composant chauffant et dispositif de génération d'aérosol - Google Patents

Composant chauffant et dispositif de génération d'aérosol Download PDF

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Publication number
WO2022188786A1
WO2022188786A1 PCT/CN2022/079795 CN2022079795W WO2022188786A1 WO 2022188786 A1 WO2022188786 A1 WO 2022188786A1 CN 2022079795 W CN2022079795 W CN 2022079795W WO 2022188786 A1 WO2022188786 A1 WO 2022188786A1
Authority
WO
WIPO (PCT)
Prior art keywords
infrared radiation
heating element
radiation layer
heating
base body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/079795
Other languages
English (en)
Chinese (zh)
Inventor
周宏明
李欢喜
李日红
杜贤武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Smoore Technology Ltd
Original Assignee
Shenzhen Smoore Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Smoore Technology Ltd filed Critical Shenzhen Smoore Technology Ltd
Publication of WO2022188786A1 publication Critical patent/WO2022188786A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control

Definitions

  • the present application relates to the field of aerosol generation, in particular to a heating component and an aerosol generation device.
  • the heat-not-burn type aerosol generating device is more and more popular.
  • the contact part between the aerosol generating substrate and the heating sheet is prone to local high temperature and easy to burn.
  • the thermal conductivity of the aerosol-generating matrix itself is low, resulting in an inhomogeneous temperature inside the aerosol-generating matrix, a large temperature difference between the inner and outer layers of the aerosol-generating matrix, which affects the taste, and the utilization rate of the aerosol-generating matrix is also low. Since the aerosol-generating substrate and the heating sheet are flatly bonded, the aerosol-generating substrate and the heating sheet are closely bonded after heating, and residues are likely to remain on the heating sheet.
  • the present application provides a heating component to solve the problem in the prior art that the aerosol generating substrate of the aerosol generating device is prone to locally high temperature.
  • the heating element includes a substrate and an infrared radiation layer.
  • the infrared radiation layer is disposed on at least a portion of the surface of the substrate.
  • the outer surface of the infrared radiation layer away from the base body is arranged as a convex structure.
  • the infrared radiation layer is used to radiate infrared rays to the outside.
  • the aerosol generating device includes a power source and the above-mentioned heating part.
  • the heating element is electrically connected to the power source.
  • the present application solves the problem in the prior art that the aerosol generating substrate of the aerosol generating device is prone to local high temperature through the above technical solutions.
  • FIG. 1 is a perspective view of a heating element for an aerosol-generating device according to one embodiment of the present application
  • Fig. 2 is a perspective view of the heating element of the heating element shown in Fig. 1;
  • FIG. 3A is a cross-sectional view of the heating member shown in FIG. 1 along the direction AA' in FIG. 1;
  • 3B is a cross-sectional view of the heating member including the thermally conductive layer along the direction AA' in FIG. 1;
  • FIG. 4 is an enlarged view of the portion of the heating element shown in FIG. 1 in circle 4;
  • FIG. 5 is a perspective view of a heating element for an aerosol generating device according to another embodiment of the present application.
  • FIG. 6 is an enlarged view of the portion of the heating element shown in FIG. 5 in circle 6;
  • FIG. 7 is a cross-sectional view of the heating member shown in FIG. 5 along the direction BB' in FIG. 5;
  • FIG. 8 is a cross-sectional view of a heating element for an aerosol-generating device according to yet another embodiment of the present application.
  • FIG. 9 is a cross-sectional view of a heating element for an aerosol-generating device according to yet another embodiment of the present application.
  • FIG. 10 is a schematic perspective view of a heating element for an aerosol generating device according to yet another embodiment of the present application.
  • Figure 11 is a schematic block diagram of an aerosol generating device.
  • FIG. 1 shows a perspective view of a heating element 10 for an aerosol generating device according to one embodiment of the present application.
  • FIG. 2 shows a perspective view of the heating element 110 of the heating element 10 .
  • FIG. 3A is a cross-sectional view of the heating member 10 shown in FIG. 1 along the direction AA' in FIG. 1 .
  • the heating component 10 includes a heating element 110 , an infrared radiation layer 120 disposed on at least a part of the heating element 110 , and a base 140 connected to the heating element 110 .
  • the base 140 and the infrared radiation layer 120 are integrally formed.
  • the overall thickness of the heating member 10 is between 0.4-0.48mm, and the width is between 3.0-5.0mm.
  • the heating element 110 shown in FIG. 2 is in a sheet shape.
  • the heating element 110 may serve as a substrate supporting the infrared radiation layer.
  • the heating element includes a heating part 112 and a connecting part 114 .
  • the heating part 112 shown in FIG. 2 includes two heating strips extending in the X direction and a bending part connected between the two heating strips.
  • the heating part 112 is optionally a metal heating resistor, also called a power resistor.
  • the metal heating resistor is optionally composed of materials such as Ni-Cr alloy or Fe-Cr-Al alloy.
  • the thickness of the metal heating resistor is optionally between 0.05 mm and 0.2 mm, and optionally between 0.08 mm and 0.12 mm.
  • the heating element 110 may also have other shapes, such as a needle shape, a cylindrical shape, a solid cylindrical shape, a polygonal shape, and the like, which are not limited in this application.
  • the connecting portion 114 of the heating element 110 can be embedded in the base 140 and expose at least a part thereof for electrical connection with a power source.
  • the exposed portion of the connection part 114 may protrude from the surface of the base 140 .
  • the base 140 can be connected to a power supply interface of the aerosol generating device by means of plugging in or the like, and the power supply is used to provide power to the heating element 110 .
  • the base 140 is optionally formed of insulating materials such as ceramics or plastics, which is not limited in this application.
  • FIG. 3A shows a cross-sectional view of the heating member 10 shown in FIG. 1 along the direction AA' in FIG. 1 .
  • the infrared radiation layer 120 wraps the heating element 110 , especially the heating part 112 of the heating element 110 .
  • the infrared radiation layer 120 wraps the heating element 110 by, for example, injection molding or molding filling. Methods such as injection molding or molding fill are similar to concrete bonding. Through this combination, the bonding strength between the infrared radiation layer 120 and the heating element 110 is higher, and the bending resistance of the heating element 10 is stronger.
  • the infrared radiation layer 120 may also be disposed on the whole or at least a part of the surface of the heating element 110 by coating or the like, which is not limited in this application.
  • the infrared radiation layer 120 is formed of an infrared radiation material, especially a thermal infrared radiation material.
  • the thermal infrared radiation material can convert the heat from the heating element 110 into infrared rays or emit infrared radiation from its surface.
  • Infrared is an electromagnetic wave with a wavelength between 0.76 and 1000 ⁇ m. In general, infrared includes near-infrared (0.76-3 ⁇ m), mid-infrared (3-6 ⁇ m), far-infrared (6-15 ⁇ m), and very far-infrared (15-1000 ⁇ m).
  • Infrared radiation materials are materials with high infrared emissivity.
  • the infrared emissivity of the infrared radiation material is higher than 0.7, higher than 0.8 or higher than 0.85.
  • Infrared radiation materials are, for example, infrared radiation enamels, infrared radiation ceramics, and the like.
  • the infrared radiation ceramic is optionally a ceramic based infrared radiation coating.
  • the infrared radiation ceramic is optionally a ceramic matrix composite material including zircon powder, iron oxide, chromium oxide, silicon carbide, and the like.
  • the infrared radiation material can optionally have a high infrared emissivity between 300°C and 400°C, thereby having a good infrared emissivity within the operating temperature of the aerosol generating device of the present application.
  • the infrared radiation material used in the present application may be non-toxic and harmless, and it will not produce toxic substances especially under high temperature, so that it will not damage human health.
  • the infrared radiation material used in the present application has a good bonding force with the heating element 110, and when the temperature is between the working temperature (for example, between 300°C and 400°C or a working temperature of about 350°C) and normal temperature When changing, the infrared radiation material will not be peeled off from the heating element 110 due to the deformation caused by the change of cold and heat.
  • infrared radiation heating is more penetrating, directional and immediate response capability. Therefore, the use of infrared radiation heating can improve the directional, precise and rapid response heating capability of the aerosol-generating substrate by utilizing the above-mentioned characteristics of infrared radiation, and improve the taste of the aerosol-generating device.
  • the heating part 10 may further include a thermally conductive layer 150 disposed between the heating element 110 and the infrared radiation layer 120 . At least a portion of the thermally conductive layer 150 is in direct contact with the heating element 110 .
  • the heat-conducting layer 150 wraps the heating element 110 .
  • the heat conduction layer 150 is disposed corresponding to the infrared radiation layer 120 to conduct the heat generated by the heating element 110 to the infrared radiation layer 120, thereby making the temperature distribution of the infrared radiation layer 120 more uniform.
  • the thermally conductive layer 150 may further include a wire or mesh structure embedded in the infrared radiation layer 120 and distributed throughout the infrared radiation layer 120 .
  • the thermally conductive layer 150 is formed of metal, for example.
  • the thermally conductive layer 150 is formed of thermally conductive ceramics that can be well combined with the heating element 110 .
  • the thermally conductive layer 150 can be well combined with the heating element 110 and the infrared radiation layer 120 , thereby enhancing the structural stability and lifespan of the heating component 10 .
  • the heating component 10 may not include the thermally conductive layer 150, which is not limited in the present application.
  • the surface of the infrared radiation layer 120 away from the heating part 10 has protrusions 130 .
  • the protrusions 130 may be micro-protrusions with a height of less than 0.1 mm.
  • the micro-convex structure can reduce the direct contact area between the aerosol-generating substrate and the heating member 10 when the aerosol-generating substrate is installed in the aerosol-generating device. Therefore, when the burnt aerosol-generating substrate is taken out from the aerosol-generating device, the extraction resistance of the aerosol-generating substrate is reduced, and the residue residue is reduced.
  • the protrusions 130 shown in FIG. 1 are ridges.
  • Figure 4 shows an enlarged view of the portion in the dashed circle 4 in Figure 1 showing the ridges more clearly.
  • the protrusions 130 may also include other structural forms.
  • the protruding strips can be selected as longitudinal protruding strips extending along the X direction shown in the figure, that is, the length direction of the heating element 10 . When the protruding strips extend along the X direction, after the aerosol generating substrate is installed, the outside air can flow through the gap between the surface of the infrared radiation layer 120 and the aerosol generating substrate defined by the protruding strips, which is beneficial to take away the surrounding heating element 110.
  • the high temperature heat reduces the risk of scorching, while increasing the amount of aerosol and improving the taste.
  • the ridges can also extend in other directions, and different ridges can have different extension directions.
  • the ridges may extend laterally in a direction perpendicular to the X direction, and the ridges may also extend in the form of curved lines. This application does not limit this.
  • the ridges are optionally formed from the infrared radiation materials described above.
  • the infrared radiation material forming the ridges has a higher infrared emissivity.
  • the ridges are closer to the aerosol generating substrate than the infrared radiation layer 120 . Therefore, forming the ridges with infrared radiation materials with higher infrared emissivity increases the proportion of infrared radiation heat transfer in the heat conduction of the ridges, which helps to further prevent the aerosol-generating matrix close to the ridges from being scorched.
  • the cross-sectional shape of the convex strip is not limited, and may be semicircle, semiellipse, triangle, etc.
  • the top of the convex strip is a convex curved surface, especially a convex smooth curved surface.
  • the cross-section of the rib is arcuate.
  • the arcuate includes a top 1320.
  • the top 1320 may be an arc-shaped top.
  • the top 1320 may be a parabolic top or a hyperbolic top.
  • the cross section of the convex strips may be in the shape of a convex lens, especially in the shape of a plano-convex lens.
  • the infrared emissivity is maximum in the normal direction of the surface of the ridges.
  • the protruding strips are formed of infrared radiation materials, by setting the cross-section of the protruding strips into a convex lens shape, the protruding strips can emit infrared rays as divergently as possible, improve the uniformity of infrared radiation, and increase the amount of gas installed on the heating element 110.
  • the area where the aerosol-generating substrate is directly heated by infrared rays improves the utilization of the aerosol-generating substrate and the amount of aerosol.
  • the surfaces of the protruding strips may be rough surfaces.
  • the surface of the ridges may have a roughness not smaller than Ra6.3 and not larger than Ra12.5. Appropriate surface roughness can increase the infrared emissivity of the infrared radiation material and reduce the proportion of direct heat conduction in the heat transfer of the ridges.
  • FIG. 5 shows a perspective view of a heating member 10 for an aerosol generating device according to another embodiment of the present application
  • FIG. 6 shows the heating member 10 shown in FIG. 5 in circle 6
  • FIG. 7 shows a cross-sectional view of the heating element 10 of FIG. 5 along the direction BB' in FIG. 5 .
  • the heating member 10 shown in FIG. 5 is different from the heating member 10 shown in FIG. 1 in that, in FIG. 5 , the protrusions 130 on the surface of the infrared radiation layer 120 are bumps, not as shown in FIG. 1 . ridges.
  • the bumps are formed of infrared radiation material.
  • the infrared radiation material forming the bumps has a higher infrared emissivity.
  • the surfaces of the bumps may be rough surfaces.
  • the distribution density of the plurality of bumps in different parts of the infrared radiation layer 120 may be different.
  • the infrared radiation layer 120 includes a high temperature region 122 and a remaining low temperature region 124 near the heating portion 112 of the heating element 110 .
  • the distribution density of the bumps in the high temperature region 122 is greater than the distribution density of the bumps in the low temperature region 124 .
  • the bumps may be uniformly distributed on the infrared radiation layer 120 .
  • the heating component 10 includes the thermally conductive layer 150 extending corresponding to the infrared radiation layer 120
  • the temperature of the infrared radiation layer 120 is approximately uniform during operation, and the bumps can be uniformly distributed on the infrared radiation layer 120 .
  • the higher the distribution density of the bumps the higher the infrared emissivity of the corresponding area of the infrared radiation layer 120. Therefore, changing the distribution density of the bumps according to the surface temperature of the infrared radiation layer 120 helps the heating member 10 to uniformly emit infrared radiation outward.
  • the size of the bumps can also be different.
  • the size of the bumps in the high temperature region 122 of the heating component 10 may be larger than the size of the bumps in the low temperature region 124 of the heating component 10 .
  • the top surface 1340 of the bump may be a convex arcuate surface. As shown with reference to FIGS. 6 and 7 , the top surfaces 1340 of the bumps may be lenticular surfaces.
  • the convex lens surface may be a spherical convex lens surface or an aspheric convex lens surface (eg, a parabolic convex lens surface), which is not limited in the present application.
  • the cross section of the convex point is a parabolic lens
  • its outer diameter is 0.1-0.5 mm, preferably 0.2-0.3 mm
  • its protruding height is 0.02-0.08 mm, preferably 0.02-0.05 mm .
  • the bumps can emit infrared rays as divergently as possible, improve the uniformity of infrared radiation, and increase the area where the aerosol-generating substrate mounted on the heating element 110 is directly heated by infrared rays , to improve the utilization rate of the aerosol generation substrate and the amount of aerosol.
  • the bumps are formed by impacting ceramic particles into the surface of the heating component 10 at high speed through a high temperature and high pressure sandblasting process, which is not limited in the present application.
  • the protruding strips or protruding points described above are just some non-limiting examples of the protrusions 130 .
  • the protrusions 130 may also have other structural forms, for example, annular, ellipsoidal, and the like.
  • the same heating component 10 may also have protrusions 130 with different structural forms at the same time, which is not limited in this application.
  • the protrusions 130 may be disposed adjacent to each other, or may be spaced apart from each other, which is not provided in this application.
  • FIG. 8 is a cross-sectional view of a heating member 10 for an aerosol generating device according to yet another embodiment of the present application.
  • the infrared radiation layer 120 may have a lens form as a whole, such as a biconvex lens or a plano-convex lens.
  • a lens form as a whole such as a biconvex lens or a plano-convex lens.
  • Such an infrared radiation layer 120 in the form of a lens as a whole can further increase the uniformity of the infrared radiation of the heating element 10 .
  • the surface of the infrared radiation layer 120 may be provided with the protrusions 130 as described above.
  • the heating member 10 includes a base body 170 and an infrared radiation layer 120 covering at least a part of the surface of the base body 170 .
  • the base body 170 is used to support the infrared radiation layer 120.
  • the infrared radiation layer 120 is optionally formed of an electric infrared radiation material.
  • the protrusions 130 are optionally also formed of an electric infrared radiation material. Electric infrared radiation materials can directly convert electrical energy into infrared radiation energy with high efficiency without absorbing heat.
  • the base body 170 includes an insulating body 180 and a pair of electrodes 190 .
  • the insulating body 180 is used to support the infrared radiation layer 120 .
  • the electrode 190 is electrically connected to the infrared radiation layer 120, and is used for providing electricity for the electrically radiating infrared material.
  • the electrode 190 can optionally be a patch electrode disposed on the surface of the insulating body 180 .
  • the shape of the base body 170 may be the same as the shape of the heating element 110 described above.
  • the part of the base body 110 in contact with the electric infrared radiation material may be configured to have a cross-sectional shape of a convex lens.
  • Fig. 10 is a schematic perspective view of a heating member 10 for an aerosol generating device according to yet another embodiment of the present application.
  • the heating element 110 has a hollow cylindrical shape, especially a hollow cylindrical shape.
  • the infrared radiation layer 120 is disposed on the inner surface of the heating element 110 by means of coating, injection molding, filling, or the like.
  • the protrusions 130 as described above protrude from the surface of the infrared radiation layer 120 .
  • the aerosol generating substrate can be inserted into the hollow cylindrical interior of the heating element 110 , and the outer surface is in contact with the protrusions 130 on the surface of the infrared radiation layer 120 .
  • FIG. 11 shows a schematic block diagram of an aerosol generating device 1 .
  • the aerosol generating device 1 includes the heating member 10 as described above.
  • the aerosol generating device 1 further includes a power source 20 electrically connected to the heating element 10 for supplying power to the heating element 10 .
  • the power source 20 may be a disposable power source 20 or a rechargeable power source 20, which is not limited in this application.
  • the aerosol-generating device 1 also comprises a replaceable aerosol-generating substrate 30 .
  • the heating element 10 is the heating element 10 shown in FIG. 1 , FIG. 5 or FIG. 7
  • the aerosol-generating substrate 30 may be disposed around the heating element 10 or directly adjacent to a portion of the heating element 10 .
  • the heating member 10 is the heating member 10 as shown in FIG. 8
  • the aerosol generating substrate 30 may be inserted into the heating member 10 .

Landscapes

  • Resistance Heating (AREA)

Abstract

Composant chauffant (10) et dispositif de génération d'aérosol (1). Le composant chauffant (10) comprend un corps de base et une couche de rayonnement infrarouge (120). La couche de rayonnement infrarouge (120) est disposée sur au moins une partie d'une surface du corps de base. La surface extérieure de la couche de rayonnement infrarouge (120) qui est éloignée du corps de base est pourvue d'une structure en relief (130). La couche de rayonnement infrarouge (120) est utilisée pour rayonner des rayons infrarouges vers l'extérieur. De cette manière, le problème d'un substrat de génération d'aérosol (30) du dispositif de génération d'aérosol (1) étant susceptible de générer localement une température élevée dans l'état de la technique est résolu.
PCT/CN2022/079795 2021-03-08 2022-03-08 Composant chauffant et dispositif de génération d'aérosol Ceased WO2022188786A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202120493859.6 2021-03-08
CN202120493859.6U CN216931902U (zh) 2021-03-08 2021-03-08 加热部件和气溶胶产生装置

Publications (1)

Publication Number Publication Date
WO2022188786A1 true WO2022188786A1 (fr) 2022-09-15

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Application Number Title Priority Date Filing Date
PCT/CN2022/079795 Ceased WO2022188786A1 (fr) 2021-03-08 2022-03-08 Composant chauffant et dispositif de génération d'aérosol

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CN (1) CN216931902U (fr)
WO (1) WO2022188786A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020132A1 (fr) * 1997-10-16 1999-04-29 Philip Morris Products Inc. Systeme de commande d'un briquet
CN104522892A (zh) * 2015-01-14 2015-04-22 深圳市百康光电有限公司 一种光加热电子烟
CN107645963A (zh) * 2015-05-15 2018-01-30 英美烟草(投资)有限公司 物品和用于生成气溶胶的装置
CN111772238A (zh) * 2020-06-15 2020-10-16 深圳麦克韦尔科技有限公司 雾化器及电子雾化装置
CN211910544U (zh) * 2019-12-26 2020-11-13 深圳市合元科技有限公司 加热器以及包括该加热器的烟具
CN212117075U (zh) * 2020-01-16 2020-12-11 深圳市合元科技有限公司 一种加热装置
CN212545545U (zh) * 2020-06-15 2021-02-19 深圳麦克韦尔科技有限公司 雾化器及电子雾化装置
CN112369710A (zh) * 2020-04-28 2021-02-19 湖北中烟工业有限责任公司 加热不燃烧装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020132A1 (fr) * 1997-10-16 1999-04-29 Philip Morris Products Inc. Systeme de commande d'un briquet
CN104522892A (zh) * 2015-01-14 2015-04-22 深圳市百康光电有限公司 一种光加热电子烟
CN107645963A (zh) * 2015-05-15 2018-01-30 英美烟草(投资)有限公司 物品和用于生成气溶胶的装置
CN211910544U (zh) * 2019-12-26 2020-11-13 深圳市合元科技有限公司 加热器以及包括该加热器的烟具
CN212117075U (zh) * 2020-01-16 2020-12-11 深圳市合元科技有限公司 一种加热装置
CN112369710A (zh) * 2020-04-28 2021-02-19 湖北中烟工业有限责任公司 加热不燃烧装置
CN111772238A (zh) * 2020-06-15 2020-10-16 深圳麦克韦尔科技有限公司 雾化器及电子雾化装置
CN212545545U (zh) * 2020-06-15 2021-02-19 深圳麦克韦尔科技有限公司 雾化器及电子雾化装置

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