CN112385906A - Heating assembly and heating non-combustion device - Google Patents

Heating assembly and heating non-combustion device Download PDF

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Publication number
CN112385906A
CN112385906A CN202010631997.6A CN202010631997A CN112385906A CN 112385906 A CN112385906 A CN 112385906A CN 202010631997 A CN202010631997 A CN 202010631997A CN 112385906 A CN112385906 A CN 112385906A
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CN
China
Prior art keywords
layer
infrared
heating
sub
heating assembly
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CN202010631997.6A
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Chinese (zh)
Inventor
黄婷
刘华臣
洪俊杰
谭健
陈义坤
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China Tobacco Hubei Industrial LLC
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China Tobacco Hubei Industrial LLC
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Application filed by China Tobacco Hubei Industrial LLC filed Critical China Tobacco Hubei Industrial LLC
Priority to CN202010631997.6A priority Critical patent/CN112385906A/en
Publication of CN112385906A publication Critical patent/CN112385906A/en
Priority to PCT/CN2021/099175 priority patent/WO2022001605A1/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00Smokers' requisites not otherwise provided for

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  • Resistance Heating (AREA)

Abstract

The application provides a heating assembly and a heating non-combustion device comprising the same. This heating element includes: the infrared emission device comprises a tubular conductive heating layer and an infrared emission layer positioned on the inner side of the conductive heating layer; along the circumference of the conductive heating layer, the infrared emission layer is divided into a plurality of infrared emission sub-regions, and the radiation peak positions of at least two infrared emission sub-regions in the plurality of infrared emission sub-regions are different. By adopting the heating assembly, the heating of the smoking material is more uniform.

Description

Heating assembly and heating non-combustion device
Technical Field
The application belongs to the technical field of low temperature smoking set, concretely relates to heating element and heating incombustible device.
Background
In the existing heating non-combustion device, an infrared heating mode is generally adopted to heat the smoking material wrapped by the infrared heating element. The matching of the radiation peak position of the infrared emission material and the absorption peak position of the smoking material is single, so that the heat radiation efficiency is low (namely, the heat absorption of some components in the smoking material is high, and the heat absorption of some components is low); the portion close to the infrared radiating element is relatively more fully heated by the possible simultaneous heating in the form of heat conduction, which results in an insufficient uniformity of the heating degree and the heat diffusion rate in the different parts of the tobacco mass as a whole.
Disclosure of Invention
The present application aims to address the deficiencies of the prior art by providing a heating assembly and a device for heating non-combustible materials that at least partially solve the technical problems of the prior art.
In order to solve the technical problem, the following technical scheme is adopted in the application: a heating assembly, comprising: the infrared emission device comprises a tubular conductive heating layer and an infrared emission layer positioned on the inner side of the conductive heating layer; along the circumference of the conductive heating layer, the infrared emission layer is divided into a plurality of infrared emission sub-regions, and the radiation peak positions of at least two infrared emission sub-regions in the plurality of infrared emission sub-regions are different.
Optionally, the radiation peak positions of any adjacent infrared emission sub-regions of the plurality of infrared emission sub-regions are different.
Optionally, the infrared emission sub-regions are equal in shape and size and are even numbers greater than 2, and the radiation peak positions of the infrared emission sub-regions opposite to each other are the same.
Optionally, the infrared emitting layer comprises a heat conducting layer, an infrared coating coated on a surface of the heat conducting layer; along the circumference of the conductive heating layer, the infrared coating is divided into a plurality of infrared coating sub-regions, and the infrared coating sub-regions correspond to the infrared emission sub-regions one to one.
Optionally, the material of the heat conducting layer comprises: at least one of metal, metal oxide, quartz, silicon carbide, and glass.
Optionally, along the circumference of the conductive heating layer, the conductive heating layer is divided into a plurality of conductive heating sub-regions, the conductive heating sub-regions are independently controlled, and the conductive heating sub-regions correspond to the infrared emission sub-regions one to one.
Optionally, the heating device further comprises a metal column arranged at the axis position of the conductive heating layer, and the extending direction of the metal column is the same as the axial direction of the conductive heating layer.
Optionally, the conductive heat generating layer includes: wire, wire mesh, metal sheet or metal paste coating.
Optionally, the material of one of the infrared emitting sub-regions comprises: silicon carbide or rare earth, and the other infrared emission sub-region comprises: iron oxide-based or zirconium titanium-based.
Optionally, the heating device further comprises an insulating layer located outside the conductive heating layer.
Optionally, the material of the insulating and heat-insulating layer comprises: at least one of a metal oxide, a silicide and a nitride.
Optionally, when the outer side surface of the infrared emission layer is electrically conductive, the heating assembly further includes an insulating heat conduction layer located between the electrically conductive heat generation layer and the infrared emission layer.
Optionally, the material of the insulating and heat conducting layer includes: at least one of phase change material, silica gel sheet and graphite sheet.
Optionally, an infrared reflecting layer is further included outside the insulating layer.
Optionally, an air gap is left between the infrared reflecting layer and the insulating and heat insulating layer.
Optionally, an infrared reflecting layer is further included outside the conductive heat generating layer.
Optionally, an air gap is left between the infrared reflecting layer and the conductive heating layer.
Optionally, the material of the infrared reflecting layer comprises: silver or copper.
The technical scheme is as follows: a heating non-combustion device comprises the heating assembly.
Compared with the prior art, the beneficial effect of this application is: the conductive heating layer heats the infrared emission layer, so that the infrared emission layer is excited to emit infrared rays; the radiation peak position of the infrared emission subregion is different in the infrared emission layer, can correspond different active ingredients in the smoking material respectively to make different active ingredients in the smoking material can both obtain abundant heating, thereby the efficiency of heat radiation improves, and the smog taste that the smoking material sent is better.
Drawings
Fig. 1 is a schematic view of an overall structure of a heating assembly according to an embodiment of the present application.
FIG. 2 is a transverse cross-section of the heating assembly of FIG. 1, under one embodiment.
FIG. 3 is a cross-sectional view of the heating assembly of FIG. 1 in accordance with another embodiment.
Fig. 4 is a schematic structural diagram of an overall heating assembly according to another embodiment of the present application.
Fig. 5 is a vertical sectional view of the heating assembly shown in fig. 4.
Fig. 6 is a cross sectional view of the heating assembly shown in fig. 4.
Fig. 7 is a schematic structural diagram of a heating non-combustion device provided in an embodiment of the present application.
Wherein the reference numerals are: 100. a heating assembly; 1. an infrared emitting layer; 11. a first infrared emission subregion; 12. a second infrared emission subregion; 13. a third infrared-emitting subregion; 14. a fourth infrared emitting sub-region; 2. a conductive heating layer; 21. a first conductive heat emitting sub-region; 22. a second conductive heat emitting sub-region; 23. a third conductive heat emitting sub-region; 24. a fourth conductive heat emitting sub-region; 3a, an insulating heat conduction layer; 3. an insulating and heat-insulating layer; 4a, an air gap; 4. an infrared reflecting layer; 5. a metal post; 110. a control module; 120. and a power supply module.
Detailed Description
In this application, it is to be understood that terms such as "including" or "having" are intended to indicate the presence of the disclosed features, numbers, steps, acts, components, parts, or combinations thereof, and are not intended to preclude the presence or addition of one or more other features, numbers, steps, acts, components, parts, or combinations thereof.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The application is further described with reference to examples of embodiments shown in the drawings.
Referring to fig. 1-3, embodiments of the present application provide a heating assembly 100 comprising: the infrared emission layer is positioned on the inner side of the conductive heating layer 2; along the circumference of electrically conductive layer 2 that generates heat, the infrared emission layer divides into a plurality of infrared emission subregions, and the radiation peak position of at least two infrared emission subregions in this a plurality of infrared emission subregions is different.
The conductive heating layer 2 heats the infrared emission layer, so that the infrared emission layer is excited to emit infrared rays; the radiation peak position of the infrared emission subregion is different in the infrared emission layer, can correspond different active ingredients in the smoking material respectively to make different active ingredients in the smoking material can both obtain abundant heating, thereby the efficiency of heat radiation improves, and the smog taste that the smoking material sent is better.
Referring to fig. 2 and 3, the infrared emission layer is divided into: a first infrared emission sub-region 11, a second infrared emission sub-region 12, a third infrared emission sub-region 13 and a fourth infrared emission sub-region 14.
Optionally, the radiation peak positions of any adjacent infrared emission subregions in the plurality of infrared emission subregions are different. This is to simplify the manufacturing process.
Optionally, the infrared emission sub-regions are equal in shape and size and are even numbers greater than 2, and the radiation peak positions of the infrared emission sub-regions opposite to each other are the same.
For example, the first infrared emission sub-region 11 and the third infrared emission sub-region 13 have the same radiation peak position, and the second infrared emission sub-region 12 and the fourth infrared emission sub-region 14 have the same radiation peak position. Therefore, the cigarette can be heated more uniformly when the cigarette is not burnt. In order to realize the same radiation peak position, the simplest method is to use the same material for preparation.
Of course, the boundaries of adjacent ir-emitting sub-regions are preferably separated by a thermal insulating material to avoid interference between ir-emitting sub-regions. Of course, even if the two are directly connected, there is little impact on the overall performance of the heating assembly 100.
For example, the material of one infrared emission subregion includes: silicon carbide or rare earth, and the other infrared emission sub-region comprises: iron oxide-based or zirconium titanium-based.
The silicon carbide series and the rare earth series have high radiance in a wave band of 2.5 to 15 microns, and the iron oxide series and the zirconium titanium series have high radiance after 6 microns.
Optionally, the infrared emitting layer comprises a heat conducting layer, an infrared coating coated on the surface of the heat conducting layer; along the circumference of electrically conductive layer 2 that generates heat, infrared coating divides into a plurality of infrared coating subregions, infrared coating subregion and the subregion one-to-one of infrared emission.
I.e. with the heat conducting layer as the substrate, different infrared coatings are applied in different areas. The infrared coating may be applied to the inner surface of the heat conductive layer or to the outer surface of the heat conductive layer.
The material of the heat conducting layer can be selected, for example: metals, metal oxides, quartz, silicon carbide, glass, and the like.
Optionally, referring to fig. 4 to 6, along the circumferential direction of the conductive heating layer 2, the conductive heating layer 2 is divided into a plurality of conductive heating sub-regions, the conductive heating sub-regions are independently controlled, and the conductive heating sub-regions correspond to the infrared emission sub-regions one to one.
The conductive heat emitting sub-region is independently controlled, that is, whether the infrared emitting sub-region emits infrared rays or not is also independently controlled, so that heating of the smoking material can be more finely regulated.
For example, referring to fig. 6, the conductive heat generation layer 2 is divided into a first conductive heat generation sub-region 21, a second conductive heat generation sub-region 22, a third conductive heat generation sub-region 23, and a fourth conductive heat generation sub-region 24. The first conductive heat emitting sub-region 21 is opposite to the first infrared emitting sub-region 11, the second conductive heat emitting sub-region 22 is opposite to the second infrared emitting sub-region 12, the third conductive heat emitting sub-region 23 is opposite to the third infrared emitting sub-region 13, and the fourth conductive heat emitting sub-region 24 is opposite to the fourth infrared emitting sub-region 14.
Optionally, the heating device further comprises a metal column 5 disposed at the axial center of the conductive heating layer 2, and the extending direction of the metal column 5 is the same as the axial direction of the conductive heating layer 2.
The structure can realize independent heating control of the smoking material according to the distance from the conductive heating layer 2.
For example, the conductive heating sub-region corresponding to the infrared emission sub-region with the worst matching absorption peak of the smoking material may be operated first, and since the infrared rays emitted at this time enter more into the middle of the smoking material, the surface layer of the metal cylinder 5 is radiated by the infrared rays to generate a thermal effect, and the temperature of the metal cylinder 5 is raised, so that the smoking material around the metal cylinder can be heated. At this stage, the volatile active components of the smoking material are predominant near the center. All of the conductive heat emitting sub-regions may then be operated so that all of the infrared emitting sub-regions emit infrared radiation and portions of the central and peripheral portions of the smoking material are heated simultaneously. Thus, overall, the uniformity of heating between different regions of the smoking material is enhanced.
Optionally, the conductive heat generating layer 2 includes: wire, wire mesh, metal sheet or metal paste coating. Of course, the metal wire, the metal mesh, the metal sheet or the metal paste coating can be connected into a whole or divided into several independent blocks.
Optionally, the heating device further comprises an insulating layer 3 positioned outside the conductive heating layer 2. The insulating layer 3 is used for preventing heat from being dissipated outwards.
For example, the material of the insulating and heat-insulating layer 3 includes: at least one of a metal oxide, a silicide and a nitride.
Optionally, when the outer side of the infrared emitting layer 1 is electrically conductive, the heating assembly 100 further includes an insulating heat conducting layer 3a located between the electrically conductive heat generating layer 2 and the infrared emitting layer 1. The insulating heat conduction layer 3a prevents short circuit between the conductive heat generation layer 2 and the infrared emission layer 1.
For example, the materials of the insulating and heat conducting layer 3a include: at least one of phase change material, silica gel sheet and graphite sheet.
Optionally, referring to fig. 6, an infrared reflecting layer 4 is further included outside the insulating thermal barrier layer 3. The infrared reflecting layer 4 can reflect infrared rays and prevent the infrared rays from being dissipated outwards.
Optionally, an air gap 4a is left between the infrared reflecting layer 4 and the insulating thermal insulation layer 3. The air gap 4a can further improve the efficiency of infrared reflection.
Optionally, referring to fig. 3, an infrared reflecting layer 4 is further included outside the conductive heat generating layer 2. Namely, the infrared reflecting layer 4 can be directly arranged outside the conductive heating layer 2.
Optionally, an air gap 4a is left between the infrared reflecting layer 4 and the conductive heating layer 2. The air gap 4a can further improve the efficiency of infrared reflection.
Optionally, the material of the infrared reflecting layer 4 includes: silver or copper.
Embodiments of the present application also provide a device for heating non-combustion, including the heating assembly 100 described above. The hollow area of the heating assembly 100 is used to house smoking material. Specifically, referring to fig. 7, a control module 110 is further included for controlling the heating power of the conductive heating layer 2; and a power module 120 for supplying power to the control module 110 and the heating assembly 100.
In this manner, the heating of the smoking material is more uniform.
The embodiments in the present application are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The protective scope of the present application is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present application by those skilled in the art without departing from the scope and spirit of the present application. It is intended that the present application also include such modifications and variations as come within the scope of the appended claims and their equivalents.

Claims (19)

1. A heating assembly (100), comprising: the infrared heating device comprises a tubular conductive heating layer (2) and an infrared emitting layer (1) positioned on the inner side of the conductive heating layer (2); along the circumference of the conductive heating layer (2), the infrared emission layer (1) is divided into a plurality of infrared emission sub-regions, and the radiation peak positions of at least two infrared emission sub-regions in the plurality of infrared emission sub-regions are different.
2. The heating assembly (100) of claim 1, wherein a radiation peak position of any adjacent infrared emitting sub-region of the plurality of infrared emitting sub-regions is different.
3. The heating element (100) according to claim 2, characterized in that the infrared emitting sub-areas are of equal shape and size and are even in number greater than 2, the radiation peak positions of the infrared emitting sub-areas opposite to each other being the same.
4. The heating assembly (100) according to claim 1, wherein the infrared emitting layer (1) comprises a heat conducting layer, an infrared coating layer coated on a surface of the heat conducting layer; along the circumference of the conductive heating layer (2), the infrared coating is divided into a plurality of infrared coating sub-regions, and the infrared coating sub-regions correspond to the infrared emission sub-regions one to one.
5. The heating assembly (100) of claim 4, wherein the material of the thermally conductive layer comprises: at least one of metal, metal oxide, quartz, silicon carbide, and glass.
6. The heating assembly (100) according to claim 1, wherein along the circumference of the conductive heat generating layer (2), the conductive heat generating layer (2) is divided into a plurality of conductive heat generating sub-regions, the conductive heat generating sub-regions are independently controlled, and the conductive heat generating sub-regions correspond to the infrared emission sub-regions one to one.
7. The heating assembly (100) according to claim 6, further comprising a metal column (5) disposed at an axial center position of the conductive heat generating layer (2), wherein an extending direction of the metal column (5) is the same as an axial direction of the conductive heat generating layer (2).
8. The heating assembly (100) according to claim 1, wherein the electrically conductive heat generating layer (2) comprises: wire, wire mesh, metal sheet or metal paste coating.
9. The heating assembly (100) of claim 1, wherein the material of one infrared emitting sub-region comprises: silicon carbide or rare earth, and the other infrared emission sub-region comprises: iron oxide-based or zirconium titanium-based.
10. The heating assembly (100) according to claim 1, further comprising an insulating thermal insulation layer (3) located outside the electrically conductive heat generating layer (2).
11. The heating assembly (100) according to claim 10, wherein the material of the insulating and heat-insulating layer (3) comprises: at least one of a metal oxide, a silicide and a nitride.
12. The heating assembly (100) according to claim 1, wherein when the outer side of the infrared emitting layer (1) is electrically conductive, the heating assembly (100) further comprises an insulating and heat conducting layer (3a) between the electrically conductive heat generating layer (2) and the infrared emitting layer (1).
13. The heating assembly (100) according to claim 12, wherein the material of the insulating and heat conducting layer (3a) comprises: at least one of phase change material, silica gel sheet and graphite sheet.
14. The heating assembly (100) according to claim 10, further comprising an infrared reflective layer (4) located outside the insulating and thermal insulating layer (3).
15. The heating assembly (100) according to claim 14, wherein an air gap (4a) is left between the infrared reflective layer (4) and the insulating and heat insulating layer (3).
16. The heating assembly (100) according to claim 1, further comprising an infrared reflective layer (4) located outside the electrically conductive heat generating layer.
17. The heating assembly (100) according to claim 16, wherein an air gap (4a) is left between the infrared reflecting layer (4) and the electrically conductive heat generating layer (2).
18. The heating assembly (100) according to claim 14 or 16, wherein the material of the infrared reflecting layer (4) comprises: silver or copper.
19. A device for heating non-combustibles, characterized by comprising a heating assembly (100) according to any one of claims 1 to 18.
CN202010631997.6A 2020-07-02 2020-07-02 Heating assembly and heating non-combustion device Pending CN112385906A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010631997.6A CN112385906A (en) 2020-07-02 2020-07-02 Heating assembly and heating non-combustion device
PCT/CN2021/099175 WO2022001605A1 (en) 2020-07-02 2021-06-09 Heating assembly and heat-not-burn device

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Application Number Priority Date Filing Date Title
CN202010631997.6A CN112385906A (en) 2020-07-02 2020-07-02 Heating assembly and heating non-combustion device

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CN112385906A true CN112385906A (en) 2021-02-23

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WO (1) WO2022001605A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022001605A1 (en) * 2020-07-02 2022-01-06 湖北中烟工业有限责任公司 Heating assembly and heat-not-burn device
WO2024032446A1 (en) * 2022-08-12 2024-02-15 深圳市合元科技有限公司 Aerosol generating device, heater for aerosol generating device, and control method

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Publication number Priority date Publication date Assignee Title
GB2463284B (en) * 2008-09-08 2011-11-23 Qinetiq Ltd Thermal emissive apparatus
CN203171920U (en) * 2013-03-15 2013-09-04 广州能之原节能技术有限公司 Infrared energy-saving heater
TW201740827A (en) * 2016-05-13 2017-12-01 英美煙草(投資)有限公司 Apparatus and method for heating smokable material
CN209573235U (en) * 2019-01-25 2019-11-05 安徽中烟工业有限责任公司 A kind of periphery formula infrared radiation heating aerosol generation system
CN109770433A (en) * 2019-01-25 2019-05-21 安徽中烟工业有限责任公司 A kind of periphery formula infrared radiation heating aerosol generation system
CN109846093A (en) * 2019-02-28 2019-06-07 深圳市合元科技有限公司 Low-temperature bake smoking set
CN213188083U (en) * 2020-07-02 2021-05-14 湖北中烟工业有限责任公司 Heating assembly and heating non-combustion device
CN112385906A (en) * 2020-07-02 2021-02-23 湖北中烟工业有限责任公司 Heating assembly and heating non-combustion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022001605A1 (en) * 2020-07-02 2022-01-06 湖北中烟工业有限责任公司 Heating assembly and heat-not-burn device
WO2024032446A1 (en) * 2022-08-12 2024-02-15 深圳市合元科技有限公司 Aerosol generating device, heater for aerosol generating device, and control method

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