WO2022188786A1 - 加热部件和气溶胶产生装置 - Google Patents

加热部件和气溶胶产生装置 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
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WIPO (PCT)
Prior art keywords
infrared radiation
heating element
radiation layer
heating
base body
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Ceased
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PCT/CN2022/079795
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English (en)
French (fr)
Inventor
周宏明
李欢喜
李日红
杜贤武
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Shenzhen Smoore Technology Ltd
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Shenzhen Smoore Technology Ltd
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Publication of WO2022188786A1 publication Critical patent/WO2022188786A1/zh
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    • 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 .

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Abstract

一种加热部件(10)和气溶胶产生装置(1)。加热部件(10)包括基体和红外辐射层(120)。红外辐射层(120)设置于基体的至少一部分表面上。红外辐射层(120)远离基体的外表面设置为凸起结构(130)。红外辐射层(120)用于向外辐射红外线。从而解决现有技术中，气溶胶产生装置(1)的气溶胶产生基质(30)容易产生局部高温的问题。

Description

加热部件和气溶胶产生装置 技术领域
本申请涉及气溶胶产生领域，特别涉及一种加热部件和气溶胶产生装置。
背景技术
目前，特别是加热不燃烧型的气溶胶产生装置越来越受到大家的欢迎。但是目前的加热不燃烧型气溶胶产生装置中，气溶胶产生基质与加热片的接触部分容易产生局部高温、易烧焦。而气溶胶产生基质本身热传导率较低，导致气溶胶产生基质内部温度不够均匀，气溶胶产生基质内外层温差较大，影响口感，气溶胶产生基质利用率也较低。由于气溶胶产生基质与发热片平面贴合，气溶胶产生基质与加热片加热后贴合较紧密，加热片上容易残留残垢。
实用新型内容
本申请提供一种加热部件，以解决现有技术中，气溶胶产生装置的气溶胶产生基质容易产生局部高温的问题。
为解决上述问题，本申请所采用的一个技术方案是一种加热部件。该加热部件包括基体和红外辐射层。红外辐射层设置于基体的至少一部分表面上。红外辐射层远离基体的外表面设置为凸起结构。红外辐射层用于向外辐射红外线。
为解决上述问题，本申请所采用的另一个技术方案是一种气溶胶产生装置。该气溶胶产生装置包括电源和上述加热部件。上述加热部件与该电源电性连接。
本申请通过上述技术方案，解决现有技术中，气溶胶产生装置的气溶胶产生基质容易产生局部高温的问题。
附图说明
为更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是根据本申请的一个实施例用于气溶胶产生装置的加热部件的透视图；
图2是图1中所示加热部件的发热元件的透视图；
图3A是图1中所示加热部件沿图1中A-A'方向的横截面视图；
图3B是包括导热层的加热部件沿图1中A-A'方向的横截面视图；
图4是图1中所示加热部件在圆圈4中的部分的放大图；
图5是根据本申请的另一实施例用于气溶胶产生装置的加热部件的透视图；
图6是图5中所示加热部件在圆圈6中的部分的放大图；
图7是图5中所示加热部件沿图5中B-B'方向的横截面视图；
图8是根据本申请的又一实施例用于气溶胶产生装置的加热部件的截面视图；
图9是根据本申请的又一实施例用于气溶胶产生装置的加热部件的横截面视图；
图10是根据本申请的又一实施例用于气溶胶产生装置的加热部件的示意透视图；
图11是一种气溶胶产生装置的示意框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
具体请参阅图1、图2和图3A。图1示出根据本申请的一个实施例用于气溶胶产生装置的加热部件10的透视图。图2示出加热部件10的发热元件110的透视图。图3A是图1中所示加热部件10沿图1中A-A'方向的截面视图。
如图1至图3A所示，加热部件10包括发热元件110、设于发热元件110的至少一部分上的红外辐射层120以及与发热元件110连接的基座140。可选的，基座140与红外辐射层120一体成型。可选的，加热部件10的总体厚度在0.4-0.48mm之间，宽度在3.0-5.0mm之间。使用气溶胶产生装置时，气溶胶产生装置的气溶胶产生基质可以紧靠加热部件10设置或者套设在加热部件10上，即，加热部件10插入气溶胶产生基质中。
如图2所示的发热元件110为片状。发热元件110可以用作支撑红外辐射层的基体。发热元件包括发热部112和连接部114。
图2中所示的发热部112包括两个沿X方向延伸的发热条和连接在这两个发热条中间的弯折部。发热部112可选地为金属发热电阻，也称功率电阻。金属发热电阻可选地由诸如Ni-Cr合金或Fe-Cr-Al合金材料组成。金属发热电阻的厚度可选的在0.05毫米与0.2毫米之间，可选的在0.08毫米与0.12毫米之间。发热元件110也可以具有其他形状，例如针形、圆筒形、实心柱形、多边形等，本申请对此不作限制。
如图1所示，发热元件110的连接部114可以嵌入基座140中，并且露出至少一部分用于与电源电性连接。连接部114的该露出部分可以突出于基座140的表面。基座140可以通过插入等方式连接到气溶胶产生装置的电源接口，电源用于为发热元件110提供功率。基座140可选的由陶瓷或者塑料等绝缘材料形成，本申请对此不作限制。
参考图3A，图3A示出图1中所示的加热部件10沿图1中A-A'方向的横截面视图。如图3A所示，红外辐射层120包裹发热元件110，尤其是包裹发热元件110的发热部112。红外辐射层120例如通过注塑或模压填充等方式包裹发热元件110。注塑或模压填充等方式类似于混凝土结合。通过这种结合方式，红外辐射层120与发热元件110之间的结 合强度更高，加热部件10的抗弯折能力更强。
可选的，红外辐射层120也可以通过涂覆等方式设置在发热元件110的表面的整体或者至少一部分上，本申请对此不作限制。
红外辐射层120由红外辐射材料，尤其是热红外辐射材料形成。热红外辐射材料可以将来自发热元件110的热量转换成红外线或者红外辐射从其表面发射出去。红外线是一种电磁波，其波长在0.76～1000μm之间。一般而言，红外线包括近红外(0.76～3μm)、中红外区(3～6μm)、远红外区(6～15μm)以及极远红外区(15～1000μm)。红外辐射材料是具有较高的红外线发射率的材料。可选的，红外辐射材料的红外发射率高于0.7，高于0.8或者高于0.85。红外辐射材料例如为红外辐射搪瓷、红外辐射陶瓷等。红外辐射陶瓷可选地为陶瓷基红外辐射涂层。红外辐射陶瓷可选地为包括锆英粉、氧化铁、氧化铬、碳化硅等的陶瓷基复合材料。红外辐射材料可选的在300℃至400℃之间具有高红外发射率，从而在本申请的气溶胶产生装置的工作温度内具有良好的红外发射率。
可选的，本申请所使用的红外辐射材料可以是无毒无害的，其尤其在高温下不会产生有毒物质，从而不会损害人体健康。可选的，本申请所使用的红外辐射材料具有与发热元件110的良好结合力，并且当温度在工作温度(例如，300℃和400℃之间或者大约350℃的工作温度)和常温之间变化时，红外辐射材料不会因为冷热变化导致的变形从发热元件110剥离。
与热传导加热相比，红外辐射加热的穿透性、方向性和即时响应能力更强。因此，使用红外辐射加热可以通过利用红外辐射的上述特性，提升对气溶胶产生基质的定向、精准和快速响应加热能力，提升气溶胶产生装置的口感。
参考图3B，加热部件10还可以包括设于发热元件110和红外辐射层120之间的导热层150。导热层150的至少一部分与发热元件110直接接触。可选的，如图3B所示，导热层150包裹发热元件110。可选的，导热层150对应红外辐射层120的各处设置，以将发热元件110生成的热量传导至红外辐射层120的各处，从而使红外辐射层120的温度分布 更加均匀。可选的，导热层150还可以包括嵌入红外辐射层120内并且分布于红外辐射层120各处的丝状或者网状结构。可选的，导热层150例如由金属形成。可选的，导热层150由能够与发热元件110良好结合的导热陶瓷形成。可选的，导热层150可以与发热元件110及红外辐射层120良好结合，从而增强加热部件10的结构稳定性和寿命。可选地，加热部件10可以不包括导热层150，本申请对此不作限制。
进一步，参考图1、图3A和图4，红外辐射层120远离加热部件10的表面具有凸起130。该凸起130可以是高度小于0.1毫米的微凸结构。当在气溶胶产生装置中安装气溶胶产生基质时，该微凸结构可以减少在气溶胶产生基质与加热部件10之间的直接接触面积。因此，在从气溶胶产生装置中取出燃烧完的气溶胶产生基质时，气溶胶产生基质的提取阻力降低，残垢残留减少。
图1中所示的凸起130为凸条。图4示出图1中的虚线圆圈4中的部分的放大视图，其更清楚地示出了凸条。可选的，凸起130也可以包括其他结构形式。凸条可选为沿图中所示的X方向，即加热部件10的长度方向，延伸的纵向凸条。当凸条沿X方向延伸时，安装气溶胶产生基质后，外界空气可以流经由凸条限定的在红外辐射层120的表面和气溶胶产生基质之间的间隙，有利于带走发热元件110周围的高温热量，降低烧焦风险，同时提升气溶胶量，提升口感。本领域技术人员可以理解，凸条也可以沿其他方向延伸，并且不同的凸条可以具有不同的延伸方向。例如，凸条可以沿与X方向垂直的方向横向延伸，凸条也可以以弯曲线的形式延伸。本申请对此不作限制。
凸条可选地由上文所述的红外辐射材料形成。可选的，与形成红外辐射层120的红外辐射材料相比，形成凸条的红外辐射材料具有更高的红外发射率。在实际使用时，凸条相比红外辐射层120更靠近气溶胶产生基质。因此，以具有更高红外发射率的红外辐射材料形成凸条，增大凸条的热传导中红外辐射传热所占的比例，有助于进一步防止靠近凸条的气溶胶产生基质被烤焦。
凸条的横截面形状不限，可以为半圆、半椭圆、三角形等。可选的， 凸条的顶部为凸起的曲面，尤其是凸起的光滑曲面。在一个实施例中，参考图3A，凸条的横截面为弓形。弓形包括顶部1320。顶部1320可以为圆弧形顶部。可选地，顶部1320可以为抛物线形顶部或者双曲形顶部。可选的，凸条的横截面可以为凸透镜形，尤其是平凸透镜形。一般而言，红外辐射率在凸条的表面的法线方向最大。当凸条由红外辐射材料形成时，通过将凸条的横截面设置为凸透镜形，凸条可以尽可能发散地向外发射红外线，提高红外辐射的均匀性，增加安装在发热元件110上的气溶胶产生基质直接被红外加热的区域，提升气溶胶产生基质的利用率和气溶胶量。
可选的，凸条的表面可以为粗糙表面。例如，凸条的表面可以具有不小于Ra6.3并且不大于Ra12.5的粗糙度。适当的表面粗糙度可以增大红外辐射材料的红外发射率，降低凸条传热中的直接热传导占比。
参考图5至图7，图5示出根据本申请的另一实施例用于气溶胶产生装置的加热部件10的透视图，图6示出图5中所示加热部件10在圆圈6中的部分的放大视图，图7示出图5中加热部件10沿着图5中的方向B-B'的截面视图。
图5中所示加热部件10与图1中所示加热部件10的不同之处在于，在图5中，红外辐射层120的表面的凸起130为凸点，而不是如图1中所示的凸条。可选的，凸点由红外辐射材料形成。可选的，与形成红外辐射层120的红外辐射材料相比，形成凸点的红外辐射材料具有更高的红外发射率。可选的，凸点的表面可以为粗糙表面。
如图6所示，多个凸点在红外辐射层120的不同部分的分布密度可能不同。可选的，红外辐射层120包括在发热元件110的发热部112附近的高温区122和剩余的低温区124。凸点在高温区122内的分布密度大于凸点在低温区124内的分布密度。可选的，当红外辐射层120在工作时各处的温度大致均匀时，凸点可以在红外辐射层120上均匀分布。例如，当加热部件10包括对应红外辐射层120的各处延伸的导热层150时，红外辐射层120在工作时各处的温度大致均匀，凸点可以在红外辐射层120上均匀分布。凸点的分布密度越高，红外辐射层120的对应区 域的红外发射率越高。因此，根据红外辐射层120的表面温度改变凸点的分布密度有助于加热部件10向外均匀发射红外辐射。
可选的，凸点的大小也可以不同。例如，加热部件10的高温区122中的凸点的大小可以大于加热部件10的低温区124中的凸点的大小。
凸点的顶部表面1340可以为凸出的弧形面。如参考图6和图7所示，凸点的顶部表面1340可以为凸透镜表面。可选的，凸透镜表面可以为球面凸透镜表面或者非球面凸透镜表面(例如，抛物线凸透镜表面)，本申请对此不作限制。可选的，当凸点的截面为抛物线透镜样式时，其外径大小为0.1-0.5毫米，优选地为0.2-0.3毫米，其凸出高度为0.02-0.08毫米，优选地为0.02-0.05毫米。
通过将凸点的顶部表面1340设置为凸透镜表面，凸点可以尽可能发散地向外发射红外线，提高红外辐射的均匀性，增加安装在发热元件110上的气溶胶产生基质直接被红外加热的区域，提升气溶胶产生基质利用率和气溶胶量。
可选的，凸点(尤其是具有凸透镜表面的凸点)通过高温高压类喷砂工艺将陶瓷颗粒高速冲击嵌入加热部件10表面而形成，本申请对此不作限制。
本领域技术人员容易理解，上文中所述的凸条或者凸点只是凸起130的一些非限制性示例。凸起130也可以具有其他结构形式，例如，环形、椭球形等。同一个加热部件10上也可以同时具有不同结构形式的凸起130，本申请对此不作限制。可选的，凸起130可以相邻设置，也可以彼此间隔开，本申请对此不作设置。
参考图8，图8是根据本申请的又一实施例用于气溶胶产生装置的加热部件10的截面视图。如图8所示，红外辐射层120整体可以具有透镜形式，例如双面凸透镜或者平凸透镜。这种整体上具有透镜形式的红外辐射层120可以进一步增加加热部件10的红外辐射的均匀性。可选的，红外辐射层120的表面可以设有如上文所述的凸起130。
参考图9，根据本申请的又一实施例，加热部件10包括基体170和覆盖基体170的至少一部分表面的红外辐射层120。基体170用于支撑 红外辐射层120。红外辐射层120可选的由电红外辐射材料形成。凸起130(包括凸条、凸点等)可选地也由电红外辐射材料形成。电红外辐射材料可以直接将电能以高效率转换成红外辐射能，而不需要吸收热量。
如图9所示，基体170包括绝缘主体180和一对电极190。绝缘主体180用于支撑红外辐射层120。电极190与红外辐射层120电性连接，用于为电辐射红外材料提供电力。电极190可选的为设置在绝缘主体180的表面上的贴片电极。
可选的，基体170的形状可以与上文中所述的发热元件110的形状相同。可选的，基体110与电红外辐射材料接触的部分可以设置为具有凸透镜截面形状。
参考图10，图10是根据本申请的又一实施例用于气溶胶产生装置的加热部件10的示意透视图。如图8所示，发热元件110具有中空柱形形状，尤其是中空圆柱形形状。红外辐射层120通过涂覆、注塑、填充等方式设置在发热元件110的内表面上。如上文所述的凸起130从红外辐射层120的表面突出。在加热部件10使用时，气溶胶产生基质可以插入到发热元件110的中空柱形内部，且外表面与红外辐射层120表面的凸起130接触。
参考图11，图11示出一种气溶胶产生装置1的示意框图。如图11所示，气溶胶产生装置1包括如上文中所述的加热部件10。气溶胶产生装置1还包括与加热部件10电性连接用于为加热部件10提供功率的电源20。电源20可以为一次性电源20或者可重复充电电源20，本申请对此不作限制。气溶胶产生装置1还包括可以更换的气溶胶产生基质30。当加热部件10为如图1、图5或图7所示的加热部件10时，气溶胶产生基质30可以环绕加热部件10设置或者直接靠近加热部件10的一部分设置。当加热部件10为如图8所示的加热部件10时，气溶胶产生基质30可以插入到加热部件10内部。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变 换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (11)

  1. 一种加热部件，其特征在于，包括：
    基体；以及，
    红外辐射层，设置于所述基体的至少一部分表面上，所述红外辐射层远离所述基体的外表面设置为凸起结构，所述红外辐射层用于向外辐射红外线。
  2. 根据权利要求1所述的加热部件，其特征在于，
    所述基体包括发热元件，所述红外辐射层设置于所述发热元件的至少一部分表面上，所述红外辐射层为热红外辐射层。
  3. 根据权利要求1所述的加热部件，其特征在于，
    所述红外辐射层包括电红外辐射层，所述基体包括电极，所述电红外辐射层与所述电极电性连接。
  4. 根据权利要求1所述的加热部件，其特征在于，
    所述凸起结构为条状凸起或点状凸起。
  5. 根据权利要求4所述的加热部件，其特征在于，
    所述凸起结构具有向远离所述基体的外表面的方向凸出的弧形表面。
  6. 根据权利要求4所述的加热部件，其特征在于，
    所述条状凸起的横截面为凸透镜形截面，
    或者所述点状凸起具有凸透镜形表面。
  7. 根据权利要求1所述的加热部件，其特征在于，
    所述基体的设置所述红外辐射层的部分的横截面为凸透镜截面形状。
  8. 根据权利要求1所述的加热部件，其特征在于，
    所述红外辐射层的横截面为凸透镜截面形状。
  9. 根据权利要求2和4所述的加热部件，其特征在于，
    所述红外辐射层远离所述发热元件的表面包括高温区和低温区，所 述凸起结构在所述高温区中的分布密度大于所述凸起结构在所述低温区中的分布密度。
  10. 根据权利要求1所述的加热部件，其特征在于，
    所述基体包括中空柱体，所述红外辐射层设置于所述中空柱体的内表面。
  11. 一种气溶胶产生装置，其特征在于，包括：
    电源；
    根据权利要求1至10中的任一项所述的加热部件，所述加热部件与所述电源电性连接。
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