CN209768994U - cigarette heater, electric heating smoking device and heat insulation device - Google Patents
cigarette heater, electric heating smoking device and heat insulation device Download PDFInfo
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- CN209768994U CN209768994U CN201920135571.4U CN201920135571U CN209768994U CN 209768994 U CN209768994 U CN 209768994U CN 201920135571 U CN201920135571 U CN 201920135571U CN 209768994 U CN209768994 U CN 209768994U
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Abstract
The utility model provides a cigarette heater, an electric heating smoking device and a heat insulation device, which comprises a heating component and a heat insulation component for insulating heat of the heating component; the heating assembly comprises a heating cavity in a longitudinal shape; the heat insulation assembly comprises a heat insulation pipe sleeved outside the heating assembly along the radial direction of the heating cavity; the heat insulation pipe is provided with an inner pipe body and an outer pipe body which are opposite in the radial direction, and a certain distance is formed between the inner pipe body and the outer pipe body to form a first heat insulation cavity; the first heat insulation cavity is filled with a first powder heat insulation material; the heat insulation pipe is used for reducing the heat in the heating cavity from being conducted to the periphery along the radial direction. The utility model discloses an above cigarette heater sets up the thermal-insulated subassembly that has multiple different thermal-insulated functional structure outside heating element, and thermal conduction and radiation are externally blocked in thermal conduction to the heat separation can be improved greatly to whole, the effect of avoiding local overheat of smoking set, shielding heat outside transmission is realized.
Description
Technical Field
The embodiment of the utility model provides a relate to electron cigarette technical field, especially relate to a cigarette heater and electrical heating smoking device, heat-proof device.
background
A low-temperature baking type electronic cigarette (also called low-temperature flue-cured tobacco) is a product which is used by a smoking user to electrically heat tobacco products (such as cigarettes and tobacco cores) in a flue-cured tobacco smoking set, and heat and bake the tobacco products to smoke at a temperature lower than the combustible temperature of the tobacco products so as to smoke cigarette smoke. When the low-temperature flue-cured tobacco product is used, the tobacco product is heated to smoke instead of burning by open fire, so that a user is prevented from inhaling a large amount of harmful substances generated by burning of the tobacco product by the open fire, and the low-temperature flue-cured tobacco product is gradually popularized and accepted as a substitute product of the traditional cigarette.
The low-temperature flue-cured tobacco product mainly comprises two functional modules, namely a tubular heating assembly for heating cigarettes and a power supply assembly for supplying power to the heating assembly; when the low-temperature flue-cured tobacco product is used, the heating assembly needs to generate high temperature to bake the cigarettes, so that the external heat of the heating assembly is quickly dissipated, and the internal heat is reduced; when the heat dissipation device is used, on one hand, the heat is dissipated outwards, so that a user can easily scald his hand when holding the heat dissipation device in his hand, and the shell and the circuit board are heated to generate overheating damage and faults; on the other hand, the heating heat in the heating assembly is not continuous enough, so that the cigarette is difficult to continuously generate enough smoke, and the user smokes and experiences poor effect.
Therefore, based on the above situation, an insulation structure for insulating the heating assembly is generally installed in the low-temperature flue-cured tobacco. For example, in the vacuum heat insulation evaporator technical scheme adopted in the cristobalite 201510856387.5 patent, a heat insulation pipe is sleeved outside a heating element in the scheme, the pipe wall of the heat insulation pipe comprises at least two layers of glass, and a vacuum cavity is formed between the adjacent glass. For example, the similar 201810461864.1 patent discloses a heat insulation device applied to an electronic cigarette, which includes a vacuum tube sleeved on the outer surface of a ceramic heating tube, an aerogel tube sleeved outside the vacuum tube, and a heat insulation sleeve sleeved outside the aerogel tube; the heat insulation effect is improved through the combination mode of the vacuum, the aerogel and the heat insulation sleeve.
although the vacuum heat insulation mode is simple and convenient in implementation, the metal vacuum tube is sleeved outside the electromagnetic heating assembly to influence the electromagnetic heating efficiency, so that the temperature of the heating body cannot rise, and the metal vacuum tube can generate heat when being positioned in the electromagnetic field, so that the heat insulation effect of the metal vacuum tube is greatly reduced. Moreover, after the multi-layer structures are assembled by themselves or with the heating element, the air on the surface of each pipe is conducted in a convection manner, so that the heat insulation effect is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the thermal-insulated effect of electron cigarette among the prior art is not enough and influence a piece efficiency that generates heat, the embodiment of the utility model provides a cigarette heater that thermal-insulated effect is good.
The cigarette heater of the utility model comprises a heating component and a heat insulation component for heat insulation of the heating component; the heating assembly comprises a heating cavity in a longitudinal shape for accommodating cigarettes and a heating body for heating the cigarettes; the heating component is characterized in that the heat insulation component comprises a heat insulation pipe sleeved outside the heating component; the heat insulation pipe is provided with an inner pipe body and an outer pipe body which are opposite in the radial direction, and a first heat insulation cavity is formed between the inner pipe body and the outer pipe body at a certain interval; the first heat insulation cavity is filled with a first powder heat insulation material;
the heat insulation pipe is used for reducing the heat in the heating cavity from being conducted to the periphery along the radial direction.
Preferably, the heat insulation pipe further comprises an anisotropic material layer laminated in a radial direction outside the outer pipe body.
preferably, the heat insulation pipe further comprises a second heat insulation cavity which is arranged outside the anisotropic material layer in a stacking mode along the radial direction; and a second powder heat insulation material is filled in the second heat insulation cavity.
preferably, the anisotropic material layer is configured such that a thermal conductivity in a radial direction is lower than a thermal conductivity in an axial direction.
Preferably, the anisotropic material layer has a thermal conductivity in the axial direction that is greater than 30 times the thermal conductivity in the radial direction.
Preferably, the thermal conductivity of the anisotropic material layer along the axial direction is 30-100 times of that of the radial direction.
Preferably, the first powder heat insulating material includes at least one of aerogel powder, diatomaceous earth powder, or zirconia powder.
Preferably, the particle diameter of the first powder heat insulating material is 500 to 1000 μm.
Preferably, the particle size of the first powder heat insulating material is larger than the particle size of the second powder heat insulating material;
The particle diameter of the second powder heat insulation material is 1-500 mu m.
Preferably, the heat insulation assembly further comprises an outer heat insulation cover arranged outside the heat insulation pipe; the outer heat shield is used for reducing the radiation of heat in the heating cavity to the periphery along the radial direction.
Preferably, the thermal emissivity of the outer heat shield is less than 0.3.
Preferably, the thickness of the outer heat insulation cover is 0.5-1.5 mm.
Preferably, the heat insulation pipe and the heating assembly are spaced at a certain interval in the radial direction to form a first air medium layer;
And/or a second air medium layer is formed between the heat insulation pipe and the outer heat insulation cover along the radial direction at a certain interval.
Preferably, the device also comprises a hollow outer shell with an open end and an end cover seat covering the open end of the outer shell;
the shell body forms accommodation space with the cooperation of end cover seat, heating element and thermal-insulated subassembly set up in this accommodation space.
the utility model also provides a cigarette heater, which comprises a heating component and a heat insulation component for insulating heat of the heating component; the heating assembly comprises a support, an electromagnetic coil wound on the support and an induction heating body electromagnetically coupled with the electromagnetic coil, and a heating cavity which is lengthwise and is used for accommodating cigarettes is arranged in the support;
The heat insulation assembly comprises a heat insulation pipe sleeved outside the heating assembly; the heat insulation pipe is provided with an inner pipe body and an outer pipe body which are opposite in the radial direction, and a first heat insulation cavity is formed between the inner pipe body and the outer pipe body at a certain interval; the first heat insulation cavity is filled with a first powder heat insulation material;
The inner pipe body and the outer pipe body are made of non-metal materials;
The heat insulation pipe is used for reducing the heat in the heating cavity from being conducted to the periphery along the radial direction.
the utility model further provides an electric heating smoking device with the cigarette heater, which comprises a cigarette heating device and a power supply device for supplying power to the cigarette heating device; wherein the cigarette heating device adopts the cigarette heater described in the above embodiment.
the utility model further provides a heat insulation device, which comprises an inner tube body and an outer tube body which are coaxially arranged, wherein the inner cavity of the inner tube body forms a containing cavity for containing a heating source; a certain interval is formed between the inner pipe body and the outer pipe body to form a first heat insulation cavity; the first heat insulation cavity is filled with a first powder heat insulation material.
Preferably, the heat insulation device further comprises an anisotropic material layer which is arranged outside the outer tube body in a stacking mode along the radial direction.
The utility model discloses an above cigarette heater sets up the thermal-insulated subassembly that has multiple different thermal-insulated functional structure outside heating element, and thermal conduction and radiation are externally blocked in thermal conduction to the heat separation can be improved greatly to whole, the effect of avoiding local overheat of smoking set, shielding heat outside transmission is realized.
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.
FIG. 1 is an exploded schematic view of portions of a cigarette heater according to one embodiment prior to assembly;
FIG. 2 is a schematic cross-sectional view of the tobacco rod heater of FIG. 1 with portions assembled;
FIG. 3 is a schematic view of the heating assembly of FIGS. 1 and 2 from another perspective;
FIG. 4 is a schematic view of the construction of the heatpipe of FIGS. 1 and 2;
Fig. 5 is a schematic structural view of the outer case of fig. 1 and 2;
FIG. 6 is a schematic structural view of a heating assembly according to another embodiment;
FIG. 7 is a schematic structural view of a heating assembly according to yet another embodiment;
FIG. 8 is a schematic structural view of an insulated pipe according to another embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments.
The embodiment of the invention provides a cigarette heater, which is suitable for a baking type electronic cigarette and is used for heating a special cigarette, wherein the special cigarette can be baked to emit smoke at the temperature of about 200-320 ℃, and the special cigarette generally comprises a cigarette body and a filter tip. The cigarette heater provided by the embodiment of the invention can be used for the structure and the content thereof by referring to fig. 1 to fig. 2 and the following description.
The cigarette heater is mainly formed by adding a heat insulation component 20 on the basis of a heating component 10 for heating cigarettes to generate aerosol for smoking. Meanwhile, based on the attractive appearance of the cigarette heater and the assembly requirements of all parts, the cigarette heater also comprises a hollow outer shell 30 with an open end and an end cover seat 40 covering the open end of the outer shell 30; outer housing 30 cooperates with end cap seat 40 to form an interior receiving space for receiving therein both heating assembly 10 and insulation assembly 20 above, and when assembled, form a complete cigarette heater.
With further reference to the embodiment of fig. 1 and 3, the heating assembly 10 includes an elongated heating chamber 11 for receiving a cigarette a, and a heating element 12 for heating the cigarette a; the forming modes of the heating body 12 and the heating cavity 11 are adaptively adjusted according to different heating modes of products. In the embodiment shown in fig. 1 and 3, the heating element 12 is cylindrical, and the inner space thereof is formed with the above-mentioned longitudinal heating chamber 11 for accommodating cigarettes a; meanwhile, in order to supply power to the heating element 12, an electrode pin 121 is further disposed on the heating element 12 for subsequent connection with the positive electrode and the negative electrode of the power supply device. In practice, the heating element 12 itself may be made of an electric heating material, for example, a resistive material commonly used for heating electronic cigarettes such as nichrome alloy and stainless steel, or a heating line printed on the inner wall of a rigid tubular body such as ceramic; therefore, the cigarette A generates heat after being electrified, and the outer periphery of the cigarette A accommodated in the cigarette A is heated to generate aerosol.
Corresponding to the above structure of the heating assembly 10, the structure of the heat insulation assembly 20 is shown in fig. 1, 2 and 4, and includes an annular heat insulation pipe 21 sleeved outside the heating chamber 11 along the radial direction of the heating chamber 11; the heat insulation pipe 21 includes an inner pipe body 211 and an outer pipe body 212 opposite to each other in a radial direction, and a certain distance is provided between the inner pipe body 211 and the outer pipe body 212 to form a first heat insulation chamber 213 therein; the first heat insulating cavity 213 is filled with a first powder heat insulating material, and the first powder heat insulating material may be preferably a powder material having a low thermal conductivity, such as aerogel powder, diatomaceous earth powder, or zirconia powder. By sleeving the heat insulation pipe 21 outside the heating cavity 11, heat can be effectively prevented from being emitted outwards from the heating cavity 11, and the effect of reducing the external temperature is achieved. According to the product design and the requirement of the heat insulation effect, the inner tube 211 and the outer tube 212 of the heat insulation tube 21 may be made of a non-metal heat-resistant plastic material, such as one of the above-described polyimide, teflon, selenium-phosphorus glue, polyphenylene sulfide or polysulfone resin, or a material such as stainless steel or aluminum alloy. The first powder heat insulating material filled in the above first heat insulating cavity 213 reduces solid conduction of heat by particle gaps, physical expansibility, thixotropy, and the like; on the other hand, the pore walls on the surfaces of the particles can be regarded as a reflecting surface and a refracting surface of heat radiation, so that the radiation transmission of heat is well blocked.
When the above heat insulation pipe 21 is assembled with the heating assembly 10, a certain gap is kept between the inner pipe body 211 and the heating body 12 in the radial direction, and a first air medium layer 22 is formed by the inner pipe body 211 and the heating body 12 by keeping a certain gap; the air itself is a medium having a relatively low thermal conductivity, and the gap remaining between the inner tube body 211 and the heating body 12 is filled with the air medium, which primarily contributes to preventing direct conduction of heat. According to the size and space requirements of the product, the thickness of the first air medium layer 22 is preferably 0.5 mm-1.2 mm; the thicknesses of the inner tube 211 and the outer tube 212 are 0.1-0.3 mm in the implementation. The thickness of the first heat insulation cavity 213 is 1 mm-5 mm, the particle size of the first powder heat insulation material filled in the first heat insulation cavity 213 is 500-1000 μm, and the filling volume of the first powder heat insulation material in the first heat insulation cavity 213 accounts for 70-90% of the cavity volume of the first heat insulation cavity 213, and the filling volume ratio can be adjusted to meet the required requirement by adjusting the particle size of the powder particles in the implementation.
Further, the heat insulation assembly 20 further includes an outer heat insulation cover 23 covering the heat insulation pipe 21 in the radial direction of the heat insulation pipe 21, and the outer heat insulation cover 23 itself is made of high temperature resistant plastic, such as one of the above-described polyimide, teflon, selenium phosphorus glue, polyphenylene sulfide or polysulfone resin, or an aluminum shell. By using the outer heat shield 23 as a supplement to the heat insulation pipe 21, on one hand, a multi-layer heat insulation structure from inside to outside is formed, and heat guiding and emission are respectively limited, so that the heat of the final heating cavity 11 is well isolated; on the other hand, the outer heat shield 23 is different from the heat insulating pipe 21 in heat conduction mechanism, and the outer heat shield 23 mainly serves as a shield for heat radiation to reduce the radiation of heat toward the outside. Based on the effect and requirement of radiation shielding, it is further preferable to use a material having a thermal emissivity lower than 0.3 based on the above materials. Meanwhile, based on the size and preparation requirements of the product, the thickness of the outer heat shield 23 is 0.5-1.5 mm, and the shape of the outer heat shield can be adaptively changed according to the shapes of shells of different products.
In the implementation, a certain gap can be kept between the outer heat shield 23 and the outer tube 212 of the heat insulation tube 21 during installation, so that the second air medium layer 24 is formed between the outer heat shield 23 and the outer tube 212, and the heat insulation effect is improved by the characteristic of low heat conductivity of air similar to the action of the first air medium layer 22.
The inner and outer tubes 211 and 212 are designed to be independently spaced from each other based on product design and convenience of filling the powder heat insulating material, and opposite ends of the heat insulating tube 21 in the axial direction are plugged with plastic plugs 25, thereby enabling sealing and preventing powder leakage. In the heat insulating pipe 21 having such a structure, when powder is filled, the powder heat insulating material can be easily filled smoothly in the manufacturing process by using the structure in which the both ends of the pipe are opened, and then, after the inside is evacuated in the opened state, the powder heat insulating material is sucked into the heat insulating pipe 21 by using the inside vacuum.
With further reference to fig. 1 and 5, the outer housing 30 has first and second ends 31, 32 opposite in the axial direction of the heating chamber 11; wherein the first end 31 is configured as an insertion end for insertion of a cigarette rod and the second end 32 is configured as an open end for mating with the end cap holder 40. The first end 31 is provided with a through hole 33 for inserting the cigarette A from the outer shell 30 into the heating cavity 11; the second end 32 is used for mounting an end cap base 40, and further forms a mounting base for fixing components such as a silicone member 41, a circuit board 42, a lead groove, an air inlet hole and the like.
further based on the product's deformation design, the heating assembly 10 and the thermal insulation assembly 20 may be varied accordingly with the above functional structure design in mind; for example, another heating assembly 10a shown in fig. 6 may be adopted, which includes a cylindrical cigarette accommodating tube 13a, the space inside the cigarette accommodating tube 13a forming an elongated heating cavity 11a for accommodating cigarettes; meanwhile, the heating element 12a is a slender metal heating pin disposed along the axial direction of the cigarette accommodating tube 13 a; when a cigarette is accommodated in the heating chamber 11a, the heating element 12a is directly inserted into the cigarette to heat the interior of the cigarette, thereby generating aerosol. The heat insulation assembly 20 is sleeved outside the cigarette accommodating pipe 13a by adopting the above structure, and is used for insulating the temperature conducted outside the cigarette accommodating pipe 13 a.
Or in implementation, the heating assembly 10 of the cigarette heater may be further modified by using an electromagnetic heating structure shown in fig. 7, and specifically includes a cigarette accommodating tube 13b, and a space inside the cigarette accommodating tube 13b forms an elongated heating cavity 11b for accommodating cigarettes; a tubular bracket 12b is sleeved outside the cigarette accommodating tube 13b, the tubular bracket 12b is used as a mounting base, and an electromagnetic coil 14b is wound on the tubular bracket 12 b; the cigarette accommodating tube 13b itself is made of a metal material and is electromagnetically coupled to the electromagnetic coil 14b, so that heat is generated by induction after the electromagnetic coil 14b is energized. Based on the principle of electromagnetic heating, the tubular support 12b is made of a non-metal material capable of resisting the working temperature of the induction heating unit 10; so as to avoid the internal electromagnetic shielding effect formed when using metal material, which causes the cigarette accommodating tube 13b not to generate heat by induction. The heat insulation assembly 20 is sleeved outside the tubular support 12b by adopting the above structure, and is used for insulating the temperature conducted outside the cigarette accommodating pipe 13 a.
based on the design of further thermal insulation optimization, the structure of the thermal insulation pipe 21 in the above thermal insulation assembly 20 may further include an anisotropic material layer 214a disposed outside the first thermal insulation chamber 213a in a radial direction, in another embodiment, as shown in fig. 8; wherein, the anisotropic material has different physical properties in different dimension directions, and the structure of the utility model utilizes the heat conductivity of the anisotropic material in different dimension directions; the anisotropic material layer 214a is configured to have a material anisotropy direction with a thermal conductivity lower in the radial direction than in the axial direction, so that when heat is conducted from the heating chamber 10 to the anisotropic material layer 214a in the radial direction, the heat is largely converted into distributed conduction in the axial direction, thereby effectively expanding the local conduction of heat to surface conduction with a larger area, which is beneficial to uniformizing the conduction of temperature in the radial and axial directions, reducing the local high temperature, and effectively shielding the heat source from diffusing outwards. In practice, the above thermal conductivity anisotropic material is carried out using one or more of graphite materials including graphite flakes or graphite powder, graphene coating, carbon fiber, titanium dioxide polycrystalline film, polycrystalline silicon, and the like. Based on the utility model discloses in set for the difference of heat conduction, adopt anisotropic material layer 214a to be greater than 30 times of radial direction coefficient of heat conductivity along axial direction's coefficient of heat conductivity. Based on the selection of general materials and the effect of implementation, it is further preferable to use a method in which the thermal conductivity in the axial direction is 30 to 100 times as high as that in the radial direction.
The heat insulating pipe 21 further includes a second heat insulating chamber 215a provided outside the anisotropic material layer 214a in the radial direction, and the second heat insulating chamber 215a is filled with a second powder heat insulating material having a low thermal conductivity, such as aerogel powder, diatomaceous earth powder, or zirconia powder. The second insulating chamber 215 is different from the first insulating chamber 213 in the function setting, and the particle fineness of the powder material filled in the second insulating chamber 215 is lower, which is advantageous for reducing the gap, and is mainly used for shielding the convection of heat and playing a role in blocking the convection of heat. In practice, the second powdery heat insulator in the second heat insulating chamber 215 is preferably formed of a material having a particle size of about 1 to 500 μm and a thermal conductivity of about 0.02W/(m.K).
Adopt the utility model discloses an above cigarette heater sets up the thermal-insulated subassembly that has multiple different thermal-insulated functional structure outside heating element, and thermal conduction and radiation are externally blocked in thermal conduction to the heat separation can be improved greatly to whole, the effect of avoiding local overheat of smoking set, shielding heat outside transmission is realized. In the example shown in the structure of fig. 2, the heat insulation pipe 21 is made of stainless steel material, aerogel powder with the average grain size of 500 μm is filled in the first heat insulation cavity 213 with the thickness of 4mm, and the surface temperature of the outer shell 30 is tested to be about 50 ℃ when smoking; when the average particle size of the first heat insulating chamber 213 is adjusted to be larger than 800 μm, the surface temperature of the outer case 30 is reduced to about 43 degrees during smoking. Indicating that the particle size adjustment through powder filling changes the insulating effect of the medium on heat conduction.
the utility model further provides an electric heating smoking device with the cigarette heater, which comprises a cigarette heating device and a power supply device for supplying power to the cigarette heating device; wherein the cigarette heating device adopts the cigarette heater described in the above embodiment. The utility model discloses an electrical heating smoking device, through the thermal-insulated subassembly that has the different thermal-insulated structures of multilayer, at thermal conduction and radiation of inside isolation, externally block thermal convection to can improve the effect of its thermal resistance greatly on the whole, make electrical heating smoking device surface have lower temperature.
It should be noted that the preferred embodiments of the present invention are shown in the specification and the drawings, but not limited to the embodiments described in the specification, and further, it will be apparent to those skilled in the art that modifications and variations can be made in the above description and all such modifications and variations should fall within the scope of the appended claims.
Claims (18)
1. a cigarette heater comprises a heating assembly and a heat insulation assembly for insulating the heating assembly; the heating assembly comprises a heating cavity in a longitudinal shape for accommodating cigarettes and a heating body for heating the cigarettes; the heating component is characterized in that the heat insulation component comprises a heat insulation pipe sleeved outside the heating component; the heat insulation pipe is provided with an inner pipe body and an outer pipe body which are opposite in the radial direction, and a first heat insulation cavity is formed between the inner pipe body and the outer pipe body at a certain interval; the first heat insulation cavity is filled with a first powder heat insulation material;
The heat insulation pipe is used for reducing the heat in the heating cavity from being conducted to the periphery along the radial direction.
2. The tobacco rod heater of claim 1, wherein the insulating tube further comprises a layer of anisotropic material disposed radially outwardly of the outer tube.
3. the tobacco rod heater of claim 2, wherein the insulating tube further comprises a second insulating chamber disposed radially outwardly of the anisotropic material layer in a stacked relationship; and a second powder heat insulation material is filled in the second heat insulation cavity.
4. The tobacco rod heater of claim 2, wherein the layer of anisotropic material is configured to have a thermal conductivity in a radial direction that is lower than a thermal conductivity in an axial direction.
5. The tobacco rod heater according to claim 4, wherein the anisotropic material layer has a thermal conductivity in an axial direction that is greater than 30 times a thermal conductivity in a radial direction.
6. The tobacco rod heater according to claim 4, wherein the anisotropic material layer has a thermal conductivity in an axial direction that is 30 to 100 times the thermal conductivity in a radial direction.
7. The tobacco rod heater of any one of claims 1 to 6, wherein the first powder insulation material comprises at least one of aerogel powder, diatomaceous earth powder, or zirconia powder.
8. A rod heater according to any one of claims 1 to 6, wherein the first powdered thermal insulating material has a particle size of 500 to 1000 μm.
9. The tobacco rod heater of claim 3, wherein the first powdered thermal insulation material has a particle size larger than the particle size of the second powdered thermal insulation material;
The particle diameter of the second powder heat insulation material is 1-500 mu m.
10. The cigarette heater of any one of claims 1-6, wherein the heat shield assembly further comprises an outer heat shield disposed outside the heat shield tube; the outer heat shield is used for reducing the radiation of heat in the heating cavity to the periphery along the radial direction.
11. The tobacco rod heater of claim 10, wherein the outer heat shield has a thermal emissivity of less than 0.3.
12. The tobacco rod heater of claim 10, wherein the outer heat shield has a thickness of 0.5mm to 1.5 mm.
13. the tobacco rod heater of claim 10 wherein the insulating tube is spaced from the heating element in a radial direction to form a first layer of air media;
And/or a second air medium layer is formed between the heat insulation pipe and the outer heat insulation cover along the radial direction at a certain interval.
14. The tobacco rod heater of any one of claims 1 to 6, further comprising a hollow outer housing having an open end, and an end cap seat covering the open end of the outer housing;
The shell body forms accommodation space with the cooperation of end cover seat, heating element and thermal-insulated subassembly set up in this accommodation space.
15. A cigarette heater comprises a heating assembly and a heat insulation assembly for insulating the heating assembly; the cigarette heating device is characterized in that the heating assembly comprises a support, an electromagnetic coil wound on the support and an induction heating body electromagnetically coupled with the electromagnetic coil, and a heating cavity which is elongated and used for accommodating cigarettes is formed in the support;
The heat insulation assembly comprises a heat insulation pipe sleeved outside the heating assembly; the heat insulation pipe is provided with an inner pipe body and an outer pipe body which are opposite in the radial direction, and a first heat insulation cavity is formed between the inner pipe body and the outer pipe body at a certain interval; the first heat insulation cavity is filled with a first powder heat insulation material;
The inner pipe body and the outer pipe body are made of non-metal materials;
The heat insulation pipe is used for reducing the heat in the heating cavity from being conducted to the periphery along the radial direction.
16. An electrically heated smoking device comprising a tobacco rod heating means and a power supply means for supplying power to the tobacco rod heating means, characterised in that the tobacco rod heating means is a tobacco rod heater as claimed in any one of claims 1 to 9.
17. The heat insulation device is characterized by comprising an inner pipe body and an outer pipe body which are coaxially arranged, wherein an inner cavity of the inner pipe body forms a containing cavity for containing a heating source; a certain interval is formed between the inner pipe body and the outer pipe body to form a first heat insulation cavity; the first heat insulation cavity is filled with a first powder heat insulation material.
18. The thermal insulation apparatus of claim 17, further comprising a layer of anisotropic material disposed radially outwardly of the outer tube.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920135571.4U CN209768994U (en) | 2019-01-26 | 2019-01-26 | cigarette heater, electric heating smoking device and heat insulation device |
| JP2021542567A JP7303316B2 (en) | 2019-01-26 | 2020-01-19 | Cigarette heaters and electrically heated smoking devices |
| US17/425,886 US20220160040A1 (en) | 2019-01-26 | 2020-01-19 | Cigarette heater and electric heating smoking apparatus |
| EP20744668.3A EP3915411A4 (en) | 2019-01-26 | 2020-01-19 | Cigarette heater and electric heating smoking apparatus |
| PCT/CN2020/072996 WO2020151618A1 (en) | 2019-01-26 | 2020-01-19 | Cigarette heater and electric heating smoking apparatus |
| KR1020217026977A KR102626583B1 (en) | 2019-01-26 | 2020-01-19 | Cigarette heaters and electrically heated smoking devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920135571.4U CN209768994U (en) | 2019-01-26 | 2019-01-26 | cigarette heater, electric heating smoking device and heat insulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209768994U true CN209768994U (en) | 2019-12-13 |
Family
ID=68793682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920135571.4U Active CN209768994U (en) | 2019-01-26 | 2019-01-26 | cigarette heater, electric heating smoking device and heat insulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209768994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020151618A1 (en) * | 2019-01-26 | 2020-07-30 | 深圳市合元科技有限公司 | Cigarette heater and electric heating smoking apparatus |
| WO2024082357A1 (en) * | 2022-10-21 | 2024-04-25 | 深圳市基克纳科技有限公司 | Heat-not-burn device and electronic cigarette having same |
-
2019
- 2019-01-26 CN CN201920135571.4U patent/CN209768994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020151618A1 (en) * | 2019-01-26 | 2020-07-30 | 深圳市合元科技有限公司 | Cigarette heater and electric heating smoking apparatus |
| WO2024082357A1 (en) * | 2022-10-21 | 2024-04-25 | 深圳市基克纳科技有限公司 | Heat-not-burn device and electronic cigarette having same |
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