CN113115995A - Gas mist generating device and heater - Google Patents
Gas mist generating device and heater Download PDFInfo
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- CN113115995A CN113115995A CN202010029619.0A CN202010029619A CN113115995A CN 113115995 A CN113115995 A CN 113115995A CN 202010029619 A CN202010029619 A CN 202010029619A CN 113115995 A CN113115995 A CN 113115995A
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- generating device
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- heater
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- 229960002715 nicotine Drugs 0.000 description 1
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Abstract
The invention provides an aerosol generating device and a heater for the aerosol generating device; wherein the aerosol-generating device comprises: a magnetic field generator, a heater to heat the smokable material; the heater includes a sensing portion which is penetrated by the magnetic field to generate heat and heat the smokable material by heat conduction, and an infrared emitting portion which receives the heat from the sensing portion and is heated to excite it to radiate infrared radiation to heat the smokable material. Above aerial fog generating device in use, on the one hand make the impression part generate heat and then directly heat smokeable material through the mode of conduction through the induction heating mode, on the other hand still utilizes the heat excitation infrared emission part radiation infrared ray of impression part to but the auxiliary heating smokeable material has promoted thermal utilization efficiency.
Description
Technical Field
The embodiment of the invention relates to the technical field of heating non-combustion smoking set, in particular to an aerosol generating device and a heater.
Background
Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release compounds without burning.
An example of such a product is a heating device that releases a compound by heating rather than burning the material. For example, the material may be tobacco or other non-tobacco products, which may or may not include nicotine. As another example, there is heating of the tobacco product by a susceptor that surrounds or is inserted into the tobacco product. As known heating devices, the heat of the susceptor is only partially received by the tobacco product, and the heat is used inefficiently.
Disclosure of Invention
In order to solve the problem of low heat utilization rate of a heating device in the prior art, the embodiment of the invention provides an aerosol generating device for improving the heat utilization rate of induction heating.
Based on the above, an aerosol-generating device for heating smokable material to generate an aerosol for inhalation according to one embodiment of the invention comprises:
a chamber for receiving smokable material;
a magnetic field generator configured to generate a varying magnetic field;
a heater configured to heat smokable material received in the chamber; the heater includes:
a susceptor portion configured to be penetrated by the varying magnetic field to generate heat to thereby heat the smokable material of the chamber; and the number of the first and second groups,
an infrared emitting portion configured to be disposed adjacent to the susceptor portion and to receive heat from the susceptor portion and to heat the smokable material by radiating infrared light into the chamber when heated by the susceptor portion.
In a preferred embodiment, the infrared emitting portion and the sensing portion are in contact with each other such that the infrared emitting portion receives heat from the sensing portion by contact conduction.
In a preferred implementation, at least a part of the axial extension of the sensing section along the chamber coincides with the extension of the infrared emitting section along the chamber.
In a preferred implementation, the heater is configured as a pin or blade extending at least partially in the axial direction of the chamber.
In a preferred implementation, the infrared emitting portion is configured to be located outside the susceptor portion in a radial direction of the heater.
In a preferred implementation, the heater comprises:
a base configured in a pin shape extending at least partially in an axial direction of the chamber;
the base body is provided with a hollow extending in the axial direction of the base body, and the sensing part and the infrared emitting part are accommodated in the hollow.
In a preferred embodiment, the sensing part is arranged to extend along the axial direction of the hollow;
the infrared emission part is an infrared emission coating formed on the surface of the sensing part or an infrared emission film wound on the surface of the sensing part.
In a preferred implementation, the susceptor portion is configured as a pin or blade extending at least partially in an axial direction of the chamber;
the infrared emission part is a coating formed on the surface of the sensing part.
In a preferred implementation, the heater further comprises a protective layer formed on a surface of the infrared emission part.
In a preferred implementation, the heater is configured as a tube extending in the axial direction of the chamber and surrounding the chamber.
In a preferred implementation, the infrared emitting portion is configured to be closer to the chamber than the sensing portion.
In a preferred implementation, the susceptor portion is configured as a tube extending in an axial direction of and surrounding the chamber;
the infrared emission part is an infrared emission coating formed on the inner surface of the sensing part.
In a preferred implementation, the heater comprises:
a base body configured in a tubular shape extending in an axial direction of the chamber and surrounding the chamber;
the infrared emission part and the sensing part are sequentially arranged along the radial direction of the base body outwards.
In a preferred embodiment, the infrared emission part is an infrared emission coating layer formed on the outer surface of the substrate or an infrared emission film wound around the outer surface of the substrate.
In a preferred implementation, the sensing portion is a sensing coating formed on the infrared emitting portion; or, the sensing portion is configured as a rigid tube abutting the infrared emitting portion.
An embodiment of the invention also provides a heater for an aerosol-generating device for heating smokable material to generate an aerosol for inhalation, comprising:
a susceptor portion configured to be penetrated by the varying magnetic field to generate heat and to heat the smokable material by thermal conduction; and the number of the first and second groups,
an infrared emitting portion configured to be disposed adjacent to the susceptor portion and to receive heat from the susceptor portion and to heat the smokable material by radiating infrared light when heated by the susceptor portion.
Above aerial fog generating device in use, on the one hand make the impression part generate heat and then directly heat smokeable material through the mode of conduction through the induction heating mode, on the other hand still utilizes the heat excitation infrared emission part radiation infrared ray of impression part to but the auxiliary heating smokeable material has promoted thermal utilization efficiency.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Figure 1 is a schematic structural view of an aerosol-generating device provided by an embodiment;
FIG. 2 is a schematic cross-sectional view of the apparatus for generating an aerosol of FIG. 1;
FIG. 3 is a perspective view of the heating mechanism of FIG. 2 from a perspective;
FIG. 4 is a schematic cross-sectional view of the heating mechanism of FIG. 3;
FIG. 5 is an exploded view of the heating mechanism of FIG. 3, shown without the parts assembled;
FIG. 6 is an exploded view of the susceptor of FIG. 5 from yet another perspective;
figure 7 is a schematic diagram of the construction of yet another susceptor embodying the present invention;
FIG. 8 is a schematic view of a heating mechanism according to yet another embodiment;
FIG. 9 is a cross-sectional structural view of the heating structure of FIG. 8;
fig. 10 is a schematic structural view of a heater according to still another embodiment.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and detailed description.
One embodiment of the present invention provides an aerosol-generating device for heating, rather than burning, smokable material, such as a tobacco rod, to volatilize or release at least one component of the smokable material to form an aerosol for smoking.
As shown in fig. 1 to 2, the aerosol-generating device according to an embodiment of the present invention is configured such that the entire outer shape of the device is substantially configured in a flat cylindrical shape, and an external member of the aerosol-generating device includes:
a housing 10 having a hollow structure therein to form an assembly space for necessary functional components such as infrared radiation;
an upper cover 11 located at an end of the housing 10 in a length direction; the upper cover 11 can cover the upper end of the shell 10 on one hand, so that the appearance of the aerosol generating device is complete and beautiful; and on the other hand, the upper end of the housing 10, thereby facilitating the installation, removal and replacement of various functional components in the housing 10.
As can further be seen from fig. 1 and 2, the upper cover 11 has an opening 12 through which opening 12 the smokable material a may be at least partially received within the housing 10 in the length direction of the housing 10 to be heated, or may be removed from within the housing 10 through the opening 12.
The housing 10 is further provided with a switch button 13 on one side in the width direction, and the user can control the start or stop of the operation of the aerosol-generating device by manually actuating the switch button 13.
As further shown in fig. 2, within the housing 10 are disposed:
a battery cell 14 for supplying power;
a control circuit board 15 integrated with a circuit for controlling the operation of the aerosol-generating device;
the charging interface 16 for charging the battery cell 14, such as a USB type-C interface, a Pin needle interface, or the like, may charge the battery cell 14 after being connected to an external power source or an adapter.
With further reference to the embodiment shown in figures 2 to 5, in order to effect heating of the smokable material a, a heating mechanism is provided within the housing 10, the configuration and construction of which after assembly can be seen in figure 3; specifically, the heating mechanism includes:
a tubular support 20, at least a portion of the tubular hollow of the tubular support 20 forming a chamber 21 for receiving smokable material A;
an induction coil 30 wound outside the tubular stent 20 in the axial direction of the tubular stent 20 and adapted to generate a changing magnetic field when an alternating current is supplied; as can be seen from fig. 5, the induction coil 30 has a first conductive connection portion 31 and a second conductive connection portion 32, and may be subsequently connected to the control circuit board 15 through the first conductive connection portion 31 and the second conductive connection portion 32 to supply an alternating current to the induction coil 30;
a pin or blade-like heater 60, extending at least partially in the axial direction of the chamber 21, may be inserted into the smokable material a as shown in figure 4.
Further in order to facilitate the installation and fixation of the heating mechanism in the housing 10, the heating mechanism further comprises:
an upper supporting member 40 is disposed at the upper end of the tubular bracket 20, the upper supporting member 40 is in a ring shape coaxial with the tubular bracket 20, and a fixing structure 41 for connecting and fixing with the housing 10 is disposed thereon, so as to fix and hold the upper end of the heating mechanism in the housing 10. As can be seen from fig. 2 and 4, the fixing structure 41 is a plurality of locking protrusions, and a groove adapted to the locking protrusions is formed in the corresponding housing 10, so as to cooperate to fix the upper end of the heating mechanism.
Of course, the central hole of the upper support 40 is used for the smokable material a to be received through into the chamber 21 or to be removed.
As further shown in fig. 4 and 5, a fixed seat 50 is provided in the tubular support 20 near the lower end, the fixed seat 50 being adapted to form a portion of reduced inner diameter of the internal chamber 21 of the tubular support 20, so that on the one hand the smokable material a can abut against the fixed seat 50 to provide a stop. Referring to fig. 4, the fixing base 50 is penetrated by the heater 60 and abuts against the fixing base 50, so that the heater 60 can be stably mounted or held in the tubular bracket 20.
Referring specifically to fig. 5, the fixing base 50 has a central hole 51 extending therethrough in the axial direction, and the central hole 51 is a mounting hole for the heater 60 to extend therethrough.
Further in the preferred embodiment shown in fig. 4 and 5, the lower end of the tubular bracket 20 is further provided with a lower end cap 22, and the lower end cap 22 is used for sealing the lower end of the tubular bracket 20, so that the fixing seat 50 and the heater 60 are stably installed in the tubular bracket 20.
In a preferred embodiment, the tubular support 20, the fixed base 50 and the lower end cap 22 can be made of a high temperature resistant organic polymer material such as PEEK, polycarbonate, PTFE, etc., or an inorganic ceramic material with good temperature resistance such as zirconia ceramic,
in the practice of the invention, the heater 60 is a heater 60 having both an electromagnetic induction mode and an infrared radiation mode to heat the smokable material A simultaneously. With further reference specifically to FIG. 6, in a preferred implementation, the shape and configuration of the heater 60 includes:
a base body 61 made of rigid infrared-transmitting quartz, glass, or ceramic material and configured to be disposed in a pin shape for insertion into the smokable material a; of course, in order to facilitate the installation and fixation of the heater 60, the base 61 is provided with a seating portion 62 for seating against the fixing seat 50. A base body 61, a hollow 63 for receiving a heating element 64 inside the base body 61, the heating element 64 being enclosed or contained within the base body 61 to emit heat and radiate infrared rays.
Specifically, the heating element 64 includes a sensing body 641 in the shape of a slender rod or a rod, which is made of a metal material having a suitable magnetic permeability and inductively coupled with the alternating magnetic field, and can be penetrated by the varying magnetic field to generate heat; the heat generated by the heat source is transmitted to the smokable material A after passing through the infrared emission coating 642 and the substrate 61 in sequence along the radial direction, and then the smokable material A can be heated by conduction; and a thermally induced infrared emission coating layer 642 formed on the susceptor 641 or a thermally induced infrared emission thin film 642 wound on the susceptor 641; the ir emitting coating 642 of the heating element 64 may be excited while receiving heat from the susceptor 641, thereby radiating far infrared rays having a heating effect, for example, far infrared rays of 3 μm to 15 μm, and when the wavelength of the infrared rays matches the absorption wavelength of the volatile component of the smokable material a, the energy of the infrared rays is easily absorbed by the smokable material, thereby heating the smokable material a.
Among other things, susceptor 641 may be made of grade 430 stainless steel (SS430), grade 420 stainless steel (SS420), and iron-nickel containing alloy materials such as J85/J66 permalloy. Has better magnetic conductivity, and can be quickly heated under the condition of alternating magnetic field.
The IR-emitting coating 642 is a thermally-induced IR-emitting material; specifically, the coating comprises a coating made of a ceramic material such as zirconium, or Fe-Mn-Cu or tungsten material.
In a preferred implementation, the infrared-emissive coating 642 includes, but is not limited to, the following materials: carbon material (amorphous carbon film, DLC film, graphene, carbon nanotube, etc.), oxide (Fe)2O3、Al2O3、Cr2O3、In2O3、La2O3、Co2O3、Ni2O3、Sb2O3、Sb2O5、TiO2、ZrO2、MnO2、CeO2、CuO、ZnO、MgO、CaO、MoO3Etc.), carbides (such as SiC, etc.), nitrides (such as: TiN, CrN, AlN, Si3N4Etc.), or a combination of two or more thereof. The infrared emission coating 642 radiates the above far infrared rays having a heating effect when heated to a proper temperature by the susceptor 641; the thickness of the infrared emission coating 642 can be controlled preferably between 30 μm and 50 μm; the material can be formed on the surface of the susceptor 641 by spraying the material on the outer surface of the susceptor 641 by means of atmospheric plasma spraying and then curing.
Above heater 60 in use, on the one hand through induction heating mode make the sensing body 641 generate heat and then directly heat smokable material A through the mode of conduction, on the other hand still utilizes the heat excitation radiation infrared ray of sensing body 641 to the auxiliary heating smokable material A has promoted thermal utilization efficiency.
And further from the above embodiments, when the heater 60 is inserted into the smokable material a for heating, the infrared emission coating 642 surrounds the susceptor 641, so as to ensure that the infrared rays emitted from the infrared emission coating 642 can be smoothly radiated to the smokable material a without being blocked.
And in the preferred embodiment shown in fig. 6, the length of the susceptor 641 extending along the axial direction of the heater 60 is greater than the length of the infrared emission coating 642, so that the susceptor 641 can be maximally utilized by the infrared emission coating 642 in the heat transfer path or direction to excite infrared light.
Further in yet another variation of the heater 60a shown in fig. 7, the heater 60a includes an induction heating portion 61a in the form of a pin or blade, and an infrared emission coating 62a on an outer surface of the stroke and heating portion 61 a. In use, the induction heating portion 61a is penetrated by the changing magnetic field to generate heat while the thermally-induced infrared emission coating 62a is heated up to be excited to radiate infrared rays; when the susceptor 60a is inserted into the smokable material a, it may on the one hand transfer heat to the smokable material a by means of contact conduction and also radiate infrared radiation to heat the smokable material a.
Of course, in a more preferred embodiment, the heater 60a shown in FIG. 7 may be provided with an infrared-transmissive protective layer (not shown) such as glass over the IR-emitting coating 62 a.
In yet another variant implementation, as shown in fig. 8 and 9, the heating mechanism includes a tubular heater 60b, and an induction coil 30b surrounding the heater 60b and inductively coupled with the heater 60a for generating a varying magnetic field;
the tubular hollow of the heater 60b forms a chamber 63b for receiving and heating the smokable material a;
with further reference to fig. 9, the heater 60b includes:
an induction heating portion 61b which is disposed in a tubular shape and can be penetrated by a changing magnetic field to generate heat;
and a thermally induced infrared emitting coating 62b formed on an inner surface of the induction heating portion 61b, the infrared emitting coating 62b being heatable by the induction heating portion 61b to radiate infrared rays to the smokable material a in the cavity 63 b.
In yet another alternative embodiment, the configuration of the heater 60c can be seen in FIG. 10, including:
a tubular base body 61c whose interior is hollow to form a chamber 64c for receiving and receiving the smokable material A; the material is made of quartz, glass or ceramics and the like which can transmit infrared rays;
forming an infrared-emitting coating 62c on the outside of the tubular base 61 c;
a heat-receptive coating 63c further formed on the outside of the infrared-emitting coating 62 c; the heating sensing coating 63c is made of a heating sensing metal material, and can be penetrated by a changing magnetic field to generate heat, so that the infrared emission coating 62c is heated to enable the infrared emission coating 62c to radiate infrared rays into the cavity 64c, and the smokable material A is further heated.
In other variations, the ir-emitting coating 62c may be a thin film that emits ir, such as a zinc oxide thin film, a graphene thin film, or an indium oxide thin film doped with rare earth metal, or a composite thin film formed by forming an ir-emitting material on a flexible thin film substrate, such as polyimide, ceramic paper, or flexible glass; while the corresponding heat receptive coating 63c may be in the form of a rigid tube made of a magnetically permeable metal or alloy.
As can be further seen from the embodiments shown in fig. 7 to 10, when the heater is tubular around the smokable material a, the infrared emitting portion is located within the heat generating sensing portion and closer to the smokable material a, thereby allowing infrared energy emitted by the infrared emitting portion to radiate into the smokable material a without being blocked or absorbed by the heat generating sensing portion.
It should be noted that the preferred embodiments of the present invention are shown in the specification and the drawings, but the present invention is not limited to the embodiments described in the specification, and further, it will be apparent to those skilled in the art that modifications and changes can be made in the above description, and all such modifications and changes should fall within the protection scope of the appended claims.
Claims (16)
1. An aerosol-generating device for heating smokable material to generate an aerosol for inhalation, comprising:
a chamber for receiving smokable material;
a magnetic field generator configured to generate a varying magnetic field;
a heater configured to heat smokable material received in the chamber; the heater includes:
a susceptor portion configured to be penetrated by the varying magnetic field to generate heat and to heat the smokable material of the chamber by thermal conduction; and the number of the first and second groups,
an infrared emitting portion configured to be disposed adjacent to the susceptor portion and to receive heat transferred from the susceptor portion and to radiate infrared radiation to the chamber to heat the smokable material when heated by the susceptor portion.
2. An aerosol-generating device according to claim 1, wherein the sensing portion and the infrared-emitting portion are in contact with each other such that the sensing portion transfers heat to the infrared-emitting portion by contact conduction.
3. An aerosol-generating device according to claim 1, wherein the sensing portion coincides with the infrared-emitting portion along at least a portion of the axial extension of the chamber.
4. An aerosol-generating device according to any one of claims 1 to 3, wherein the heater is configured as a pin or blade extending at least partially in the axial direction of the chamber.
5. An aerosol-generating device according to claim 4, wherein the infrared-emitting portion is configured to lie outside the susceptor portion in a radial direction of the heater.
6. An aerosol-generating device according to claim 4, wherein the heater comprises:
a base configured in a pin shape extending at least partially in an axial direction of the chamber;
the base body is provided with a hollow extending in the axial direction of the base body, and the sensing part and the infrared emitting part are accommodated in the hollow.
7. An aerosol-generating device according to claim 6 in which the sensing portion is provided in an axially extending arrangement along the hollow;
the infrared emission part is an infrared emission coating formed on the surface of the sensing part or an infrared emission film wound on the surface of the sensing part.
8. An aerosol-generating device according to claim 4, wherein the sensing portion is configured as a pin or blade extending at least partially in an axial direction of the chamber;
the infrared emission part is a coating formed on the surface of the sensing part.
9. The aerosol-generating device of claim 8, wherein the heater further comprises a protective layer formed on a surface of the infrared-emitting portion.
10. An aerosol-generating device according to any one of claims 1 to 3, wherein the heater is configured as a tube extending axially of and surrounding the chamber.
11. An aerosol-generating device according to claim 10, wherein the infrared-emitting portion is configured to be closer to the chamber than the sensing portion.
12. The aerosol-generating device of claim 10, wherein the sensing portion is configured as a tube extending axially of and surrounding the chamber;
the infrared emission part is an infrared emission coating formed on the inner surface of the sensing part.
13. An aerosol-generating device according to claim 10, wherein the heater comprises:
a base body configured in a tubular shape extending in an axial direction of the chamber and surrounding the chamber;
the infrared emission part and the sensing part are sequentially arranged along the radial direction of the base body outwards.
14. An aerosol-generating device according to claim 13, wherein the infrared-emitting portion is an infrared-emitting coating formed on the outer surface of the substrate or an infrared-emitting film wrapped around the outer surface of the substrate.
15. An aerosol-generating device according to claim 14, wherein the sensing portion is a sensing coating formed on the infrared-emitting portion; or, the sensing portion is configured as a rigid tube abutting the infrared emitting portion.
16. A heater for an aerosol-generating device, comprising:
a susceptor portion configured to be penetrated by the varying magnetic field to generate heat and to heat the smokable material by thermal conduction; and the number of the first and second groups,
an infrared emitting portion configured to be disposed adjacent to the susceptor portion and to receive heat from the susceptor portion and to heat the smokable material by radiating infrared light when heated by the susceptor portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010029619.0A CN113115995A (en) | 2020-01-13 | 2020-01-13 | Gas mist generating device and heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010029619.0A CN113115995A (en) | 2020-01-13 | 2020-01-13 | Gas mist generating device and heater |
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| CN113115995A true CN113115995A (en) | 2021-07-16 |
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Cited By (3)
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| WO2023000855A1 (en) * | 2021-07-22 | 2023-01-26 | 深圳麦克韦尔科技有限公司 | Heating device and electronic atomizing apparatus |
| WO2023098364A1 (en) * | 2021-12-03 | 2023-06-08 | 深圳麦克韦尔科技有限公司 | Atomizer and electronic atomization device |
| WO2024027386A1 (en) * | 2022-08-03 | 2024-02-08 | 深圳麦时科技有限公司 | Heating assembly, atomizer and aerosol generating apparatus |
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