CN114668185A - Aerosol generating system with thermal insulation - Google Patents
Aerosol generating system with thermal insulation Download PDFInfo
- Publication number
- CN114668185A CN114668185A CN202011543578.3A CN202011543578A CN114668185A CN 114668185 A CN114668185 A CN 114668185A CN 202011543578 A CN202011543578 A CN 202011543578A CN 114668185 A CN114668185 A CN 114668185A
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- China
- Prior art keywords
- heating
- heating element
- generating system
- aerosol
- smoking article
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- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 239000000443 aerosol Substances 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 178
- 230000000391 smoking effect Effects 0.000 claims abstract description 76
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 235000019504 cigarettes Nutrition 0.000 claims description 22
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 description 16
- 239000000758 substrate Substances 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- KTXUOWUHFLBZPW-UHFFFAOYSA-N 1-chloro-3-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C=C(Cl)C=CC=2)=C1 KTXUOWUHFLBZPW-UHFFFAOYSA-N 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000000214 mouth Anatomy 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229960002715 nicotine Drugs 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/57—Temperature control
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses an aerosol generating system with heat insulation and preservation performances, which comprises a shell, wherein a power supply, a heating element and a PCB are arranged in the shell, the power supply controls the heating element to work through the PCB, a heating cavity communicated with the outside is formed in the shell, the heating cavity with an upward opening is formed in the shell, heat insulation elements are further arranged on the periphery of the heating cavity in the shell, a plurality of convex parts are arranged on the inner side wall of the heating cavity, a groove is formed between every two adjacent convex parts, the heating element is arranged in the groove, a power supply for supplying power to the heating element is further arranged in the shell, and when a smoking product is inserted into the heating cavity, the outer wall of the smoking product abuts against the convex parts, and a gap is formed between the smoking product and the heating element. The aerosol generating system not only has the functions of heat insulation and heat preservation, but also can effectively solve the problem of excessive baking of the smoking products.
Description
Technical Field
The invention belongs to the technical field of smoking articles, and particularly relates to an aerosol generating system with heat insulation and preservation performance.
Background
Compared with the traditional cigarette, the heating cigarette smoking device (aerosol generating system) directly heats the tobacco or nicotine product at the heating temperature of 220-250 ℃, and the smoke is gradually volatilized after baking, so that the harmful smoke components generated by the combustion and thermal degradation of the tobacco in the traditional cigarette can be reduced.
The heating methods involved in heating cigarettes include center heating, surrounding heating, and combined center and surrounding heating, each of which has advantages and disadvantages. In the prior art, the heating element in the above 3 heating bodies is in direct contact with the smoking article, and the cigarette paper of the smoking article receives the heat transferred by the heating element first, and due to the characteristics of the cigarette paper, acidic substances are easily volatilized in the heating and baking process, which affects the smoking taste.
Disclosure of Invention
The invention mainly aims to provide an aerosol generating system with heat insulation and preservation performance, which not only has the heat insulation and preservation function, but also can effectively solve the problem of overbaking of smoking products.
In order to solve the technical problems, the invention adopts the following technical scheme:
an aerosol generating system with thermal insulation and heat preservation performance comprises a shell, a power supply, a heating element and a PCB are arranged in the shell, the power supply controls the heating element to work through the PCB, a heating cavity communicated with the outside is formed in the shell, an insulating element is also arranged in the shell and positioned at the periphery of the heating cavity, the insulating element is provided with a cup-shaped vacuum area, the heating cavity is positioned in the semi-surrounding of the vacuum area, the inner side wall of the heating cavity is provided with a plurality of convex parts, a groove is formed between every two adjacent convex parts, a heating element is arranged in the groove, a power supply for supplying power to the heating element is also arranged in the shell, when the smoking article is inserted into the heating cavity, the outer wall of the smoking article abuts against the convex part, and a gap exists between the outer wall of the smoking article and the heating element.
Specifically, an airflow channel extending along the axial direction of the heating cavity is formed between the groove and the smoking article, and outside air can enter the smoking article through the airflow channel; wherein, the first and the second end of the pipe are connected with each other,
the axial direction refers to a direction parallel to the direction of insertion of the smoking article.
In particular, the protrusions are evenly distributed on the inner side wall of the heating cavity.
Specifically, the bellying is for following the strip bellying that heating chamber axial direction extends, it is a plurality of strip bellying follows the cross section circumferencial direction equipartition in heating chamber distributes.
Specifically, the two ends of the strip-shaped protruding portion extend to the top end and the bottom end of the heating cavity respectively, and the heating element is arranged along the full length of the groove.
Specifically, the cross section of the strip-shaped convex part is arc-shaped.
Specifically, the two ends of the heating cavity, which are located at the protruding portions, are provided with a pair of electrode rings connected with the positive electrode and the negative electrode of the power supply, each groove is internally provided with the heating element, and the two ends of the heating element are respectively electrically connected with the pair of electrode rings.
Specifically, the top of casing be equipped with the cigarette mouth of inserting of heating chamber intercommunication, be equipped with on the casing can with insert the shield that the cigarette mouth shields or exposes.
Specifically, the axis of the cigarette inserting port coincides with the axis of the heating cavity.
Specifically, the cross section of the heat insulation element in the extending direction of the heating cavity is U-shaped.
Specifically, the bottom end of the heating cavity is closed.
Compared with the prior art, the invention has the beneficial effects that: the periphery that lies in the heating chamber in the aerosol generation system is provided with thermal-insulated component, utilizes the good thermal-insulated heat preservation performance function of thermal-insulated component, can effectively prevent the heat to the diffusion of casing direction, is equipped with the bellying on the inside wall of the heating chamber of aerosol generation system, and heating element sets up the recess between bellying and bellying for the cigarette paper and the heating element of smoking article are not direct contact, have avoided excessive stoving and the temperature inhomogeneity problem that direct contact brought, are used for the suction to experience and feel good.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Figure 1 is a block diagram of the exterior of an aerosol-generating system provided by an embodiment of the invention;
figure 2 is a front cross-sectional view of an aerosol-generating system provided by an embodiment of the invention;
figure 3 is a cross-sectional view of an aerosol-generating system provided by an embodiment of the invention;
fig. 4 is a schematic perspective view of a heating chamber according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a heating chamber structure according to an embodiment of the present invention;
fig. 6 is a schematic view of the gas flow within the heating chamber according to an embodiment of the present invention;
fig. 7 is an expanded schematic view of a heating chamber according to an embodiment of the present invention;
fig. 8 is a heating element and protrusion relative distribution pattern in a heating chamber according to an embodiment of the present invention;
wherein: 1-a shell; 2, inserting a cigarette port; 3-heating the cavity; 4-a smoking article; 5-a heating element; 6-an insulating element; 7-a boss; 8-a groove; 9-a power supply; 10-a dust cover; 11-a PCB board; 12-control keys; 13-an airflow channel; 14-an electrode ring; 15-a substrate layer; 16-corrugated layer; 17-conductive shrapnel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an aerosol generating system with heat insulation and preservation functions comprises a housing 1, a smoke insertion opening 2 is arranged at the top of the housing 1, a heating cavity 3 with an upward opening is formed inside the housing 1, a smoking article 4 can be inserted into the heating cavity 3 from the smoke insertion opening 2 and can be removed from the smoke insertion opening 2, a heating element 5 is arranged in the heating cavity 3, a power supply 9 for supplying power to the heating element 5 is further arranged in the housing 1, and the smoking article 4 can be inserted into the heating cavity 3 from the smoke insertion opening 2 and heated by the heating element 5 to generate smoke for a user to smoke. After smoking is complete, the smoking article 4 may be pulled out of the mouthpiece 2. The heat insulation element 6 is arranged at the periphery of the heating cavity 3 in the shell 1, and the heat can be effectively prevented from being diffused towards the shell 1 by utilizing the excellent heat insulation function of the heat insulation element 6.
The smoking article 4 is a product which generates flavor from a smoking material by applying heat but does not cause combustion of the material, and in the embodiment, the smoking article 4 is a low-temperature cigarette, and comprises a filter section and a smoking section wrapped by cigarette paper, and tobacco or nicotine is arranged in the smoking section. It should be noted that the above is only one specific example of a smoking article 4, and it will be apparent to those skilled in the art that other smoking articles 4, such as cartridges, adapted for low temperature smoking set heating may also be used.
Referring to fig. 4, specifically, a plurality of protruding portions 7 are uniformly distributed on the inner side wall of the heating cavity 3, a groove 8 is formed between two adjacent protruding portions 7, the heating element 5 is arranged in the groove 8, the protruding portions 7, the groove 8 and the heating element 5 jointly form a heating body, when the smoking article 4 is inserted into the heating cavity 3, the outer wall of the smoking article 4 abuts against the protruding portions 7, and a gap is formed between the heating element 5 and the smoking article 4, so that the heating element 5 and the smoking article 4 are not in contact with each other; during smoking, the smoking article 4 is inserted into the heating cavity 3, and the heating element 5 generates heat to bake the smoking article 4 out of smoke for a user to smoke.
In the embodiment, the heat insulation element 6 is arranged at the periphery of the heating cavity 3 in the shell, and the heat can be effectively prevented from being diffused towards the shell 1 by utilizing the excellent heat insulation function of the heat insulation element 6, so that the whole aerosol production system has excellent heat insulation performance. In addition, the heating element 5 is directly arranged at the groove 8 between the convex part 7 and the convex part 7 by arranging the convex part 7 on the inner side wall of the heating cavity 3, so that the cigarette paper of the smoking article 4 is not in direct contact with the heating element 5, the problems of excessive baking and temperature unevenness caused by direct contact are avoided, and the smoking experience of a user is better; furthermore, the heating element 5 is arranged inside the heating chamber 3 and directly faces the smoking article 4 for radiative heat transfer, and the heating efficiency is high.
Referring to fig. 2 and 5, in some possible embodiments, the thermal insulation element 6 is a vacuum thermal insulation element, specifically, a vacuum thermal insulation pipe is sleeved on the outer layer of the heating chamber 3, a cavity surrounding the heating chamber 3 is formed in the wall surface of the vacuum thermal insulation pipe, the air in the cavity is evacuated to vacuum, and the low conductivity of the vacuum environment is used to prevent the heat of the heating body from being conducted to the housing 1. The higher the vacuum degree is, the better the heat preservation and insulation effect is, the heating cavity 3 is formed at the position of the heating body, during smoking, a cigarette is inserted into the heating cavity 3, and the heating element 5 generates heat to bake the smoking article 4 out of smoke for people to smoke. Of course, the heat insulating element 6 may be made of a heat insulating material such as glass fiber, asbestos, rock wool, silicate, aerogel felt, or the like.
As shown in fig. 2, in this embodiment, the bottom end of the vacuum heat insulation pipe is closed, the side section of the vacuum heat insulation pipe is U-shaped, the whole vacuum heat insulation pipe is in a vacuum cup shape, the heating chamber 3 is located in a half-enclosure of the vacuum area, only one opening is reserved above the heating chamber, and the rest of the heating chamber is in a sealed state. In addition, it should be noted that it is not a requirement that the protrusions 7 are evenly distributed on the inner side wall of the heating chamber 3, and the protrusions 7 may be arranged in a non-uniform manner on the inner side wall of the heating chamber 3.
In practical applications, the power supply 9 may be a lithium ion battery, a nickel hydrogen battery, a hydrogen gas battery, or the like, a charging port and a control button 12 may be further disposed on the housing 1, the power supply 9 may be charged through the charging port, and the on/off of the power supply 9 of the heating element 5 may be controlled through the control button 12. While the housing 1 is used to achieve an external appearance and protect the internal arrangement, a plastic housing may be used.
Referring to fig. 2, in some possible embodiments, a dust cap 10 is disposed on the housing 1, and the dust cap 10 can slide from one end of the housing to the other end of the housing through a slide rail; when the aerosol-generating system is in use, the dust cap 10 can be slid open to expose the smoke insertion opening 2, the smoking article 4 can be inserted into the heating chamber 3 from the smoke insertion opening 2, and when the smoking is finished, the dust cap 10 can be slid up to cover the smoke insertion opening 2, so that foreign matters such as dust can be prevented from falling into the heating chamber 3.
Referring to fig. 3, specifically, a PCB 11 is further disposed in the housing 1, the PCB 11 is electrically connected to the power supply 9 and the heating element 5 to form a heating control circuit, the control button 12 on the outer side wall of the housing 1 is electrically connected (or connected by other types of signals) to the PCB 11, and when a user controls the on/off of the aerosol generating system through the control button 12, the PCB 11 receives and sends a signal to complete corresponding indication.
Referring to fig. 6, in other preferred designs, an airflow channel 13 extending in the axial direction of the heating cavity 3 (i.e. in a direction parallel to the direction of insertion of the smoking article 4) is formed between the recess 8 and the smoking article 4, i.e. the airflow channel 13 extends from the top end of the heating cavity 3 to the bottom end of the heating cavity 3, and external air can enter the interior of the smoking article 4 from the bottom end of the smoking article 4 through the airflow channel 13 from the smoke insertion opening 2.
It should be noted that the grooves 8 may extend in parallel along the axial direction of the heating chamber 3, may extend obliquely or spirally, and preferably extend in parallel along the axial direction of the heating chamber 3 in this embodiment.
In the embodiment, when the smoking segment of the smoking article 4 is inserted into the heating cavity 3 and the filter segment is at least partially exposed out of the housing 1, the outer wall (i.e. cigarette paper) of the smoking article 4 is closely attached to the protrusion 7 on the heating cavity 3, the groove 8 formed by the protrusion 7 and the protrusion 7 forms the airflow channel 13 with the smoking article 4, the inner surface area of the heating cavity 3 is increased due to the arrangement of the protrusion 7, the amount of air entering the airflow channel 13 is increased, the heating element 5 is arranged at the groove 8, and a gap with the size of the protrusion 7 is formed between the groove 8 and the cigarette paper, so that the heating element 5 is in indirect contact with the cigarette paper, when the heating element 5 starts to heat, the protrusion 7 firstly receives the heat of the heating element 5, the cold air stored in the groove 8 is heated into hot air, and the smoking article 4 receives the heat conducted by the protrusion 7, Hot air, and radiant heat of the heating element 5. When the user holds the filter tip of smoking article 4 and smokes, cold air gets into heating chamber 3 along with airflow channel 13, has become hot-air behind airflow channel 13 that recess 8 and smoking article 4 formed, and hot-air passes smoking article 4 with the heat flow volume of remaining in airflow channel 13 before in the lump, and smoking article 4 is heated the back and is volatilized the flue gas, and hot-air and flue gas are mixing and are coming out the entering human oral cavity through the filter tip of smoking article 4.
In this embodiment, the inner surface of the heating cavity 3 is uniformly distributed with the protruding portions 7, the heating element 5 penetrates through the grooves 8 of the protruding portions 7, the surface area of the heating cavity 3 is increased by the arrangement of the protruding portions 7, the grooves 8 form a new hot air flow channel, hot air flow can penetrate through the whole flue and the smoking article 4 during smoking, and better smoking experience is brought.
Referring to fig. 5 and 6, it will be appreciated that in some possible embodiments the bottom end of the heating chamber 3 is closed. Such a design mode makes in the suction process, the residues such as the tobacco that drop can remain in heating chamber 3, and can not flow to other positions of aerosol generation system, and when aerosol generation system was clean, only need insert heating chamber 3 with cleaning member such as brush from inserting cigarette mouth 2 to rotate the brush, can realize the cleanness of heating chamber 3, and the back that finishes is clean pours aerosol generation system, just can discharge the residue in the heating chamber 3 from aerosol generation system, and the system is clean convenient. In addition, can also set up the cell body (not shown in the figure) with airflow channel 13 intercommunication on the interior bottom surface of heating chamber 3, when smoking article 4 inserts to inconsistent with the bottom of heating chamber 3, show that smoking article 4 inserts to target in place promptly, at this moment, during outside air can get into smoking article 4 through airflow channel 13, cell body and smoking article 4's bottom in proper order, can inhale smog through setting up the cell body user through less suction, aerosol generating system's suction resistance is less.
Referring to fig. 7 and 8, specifically, the protruding portion 7 is a strip-shaped protruding portion extending along the axial direction of the heating cavity 3, the plurality of strip-shaped protruding portions are uniformly distributed along the circumferential direction of the cross section of the heating cavity 3, the heating element 5 is arranged in each groove 8, a pair of electrode rings 14 used for being connected with the power supply 9 are arranged at two ends of the protruding portion 7 in the heating cavity 3, two ends of the heating element 5 are respectively electrically connected with the pair of electrode rings 14, and the power supply 9 supplies power to the heating element 5 through the electrode rings 14, so as to heat the smoking article 4. Wherein, in order to make the smoking article 4 be heated evenly, the heating element 5 is preferably arranged along the length direction of the groove 8, and in addition, the cross section of the bulge part 7 can be designed into a circular arc shape, an elliptic arc shape or other arc shapes according to the actual design requirement. Of course, it should be explained that it is not essential to provide the heating element 5 in each of the grooves 8, and the heating element 5 may be provided every other groove 8.
Of course, in practical application, the protrusion 7 may also be a dot-shaped protrusion, the cross section of the dot-shaped protrusion gradually decreases toward the root, the dot-shaped protrusions are arranged in rows along the axial direction and the circumferential direction of the heating cavity 3, and each row includes a plurality of dot-shaped protrusions arranged at regular intervals; that is to say, a plurality of circumferential grooves and axial grooves which are distributed in a staggered manner are formed between the dot-shaped convex portions, an airflow channel 13 is formed between the axial grooves and the smoking article 4, and the heating element 5 can be arranged in the circumferential grooves and/or the axial grooves, so that in the above design mode, because the convex point area of the convex portion 7 is small, the contact area with the smoking article 4 is also small, and therefore the heat received by the smoking article 4 is a heat transfer mode of three ways, namely heat conduction of the convex portion 7, air convection heat transfer of the groove 8 and radiation heat transfer.
Specifically, the heating element 5 is formed by printing or coating the resistor lines on the grooves 8, and the resistor lines are covered with a protective glaze layer (not shown). By the design mode, the resistance circuit can be prevented from being directly exposed in an oxidation environment to cause oxidation failure of the resistance circuit, and the service life of the heating element 5 is prolonged. Of course, the heating element 5 may also be a heating wire or a heating sheet.
Referring to fig. 6 and 7, it can be understood that, in the practical application process, the heating cavity 3 is formed by rolling a substrate layer 15, a corrugated layer 16 is arranged on the inner side of the substrate layer 15, the wave crests of the corrugated layer 16 form the convex portions 7, the wave troughs of the corrugated layer 16 form the grooves 8, and the shape of the corrugations is divided into 3 types, i.e., V-shaped, U-shaped and UV-shaped, according to the size of the corrugated arc. The U-shaped corrugated peak of the U-shaped corrugation is close to a circle, the arc radius is larger, and the energy absorption capacity is large; the V-shaped corrugation peak of the V-shaped corrugation is close to a triangle, the arc radius is smaller, and the contact area between the corrugation peak and the cigarette paper is small; the shape of the UV-shaped corrugation is between that of the U-shaped corrugation and that of the V-shaped corrugation, most of the advantages of the U-shaped corrugation and the V-shaped corrugation are achieved, and the radius of the circular arc is between that of the U-shaped corrugation and that of the V-shaped corrugation. In addition, the sizes and the heights of the corrugations can be different, and the shape, the size and the height of the corrugations determine the proportion of the increase of the surface area in the heating cavity.
Referring to fig. 7 and 8, the heating element 5 is disposed between the wave crests of the corrugated layer 16, one end of the electrode ring 14 is fixed on the substrate layer 15 and is electrically connected with the PCB 11 for controlling the output of current, the other end of the electrode ring is provided with the conductive elastic sheet 17, one end of the conductive elastic sheet 17 is fixed on the electrode ring 14, the other end of the conductive elastic sheet 17 is a free end and can bounce to two side surfaces and is communicated with the heating element 5, the conductive elastic sheet 17, the electrode ring 14 and the heating element 5 jointly form a complete circuit loop, when the current starts to be output, the electrode ring 14, the conductive elastic sheet 17 and the heating element 5 form a circuit loop after being electrified, and the heating element 5 starts to generate heat. The heating element 5 is a component which can generate heat after being connected with electricity and is characterized by small square resistance, fast heating, high use temperature and strong oxidation resistance. Metal materials such as tungsten, silver and platinum are commonly used. The substrate layer 15 may be made of alumina, glass, metal foil, or the like.
The manufacturing process of the heating element (alumina substrate) is as follows: covering an upper convex layer on an alumina casting blank (a base material layer 15), and arranging a corrugated circular arc on the convex layer in a rolling manner and the like to form V-shaped, U-shaped and UV-shaped corrugations which are regularly arranged; printing or coating resistance lines at the grooves 8 of the corrugated layer 16 to form a heating element 5 for heating; the heating element 5 and the corrugated layer 16 are integrated by hot-press lamination or isostatic lamination. After rolling, degumming, co-sintering, glazing and bonding wires, a heating element assembly can be formed.
The manufacturing process of the heating element (metal substrate) comprises the following steps: a raised layer is coated on the base material layer 15, and corrugated shapes are formed on the raised layer by rolling and other modes; and (3) printing or coating a resistance circuit on the groove 8 of the corrugated layer 16 to form a heating element 5 for heating, and forming a heating element assembly after drying, rolling, degumming, sintering, glazing and welding wires.
The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications are intended to be within the scope of the present invention.
Claims (10)
1. Aerosol generating system with thermal-insulated heat preservation performance, including the casing be equipped with power, heating element and PCB board in the casing, the power passes through PCB board control heating element carries out work, be formed with the heating chamber with outside intercommunication in the casing, lie in the casing the periphery in heating chamber still is equipped with thermal-insulated component, its characterized in that: said insulating element having a cup-shaped vacuum region, said heating cavity being located within a half enclosure of said vacuum region; the heating cavity is characterized in that a plurality of protruding portions are arranged on the inner side wall of the heating cavity, a groove is formed between every two adjacent protruding portions, the heating element is located in the groove, and when the smoking article is inserted into the heating cavity, the outer wall of the smoking article abuts against the protruding portions and a gap exists between the smoking article and the heating element.
2. An aerosol-generating system according to claim 1, wherein: an airflow channel extending along the axial direction of the heating cavity is formed between the groove and the smoking article, and outside air can enter the smoking article through the airflow channel; wherein the content of the first and second substances,
the axial direction refers to a direction parallel to the direction of insertion of the smoking article.
3. An aerosol-generating system according to claim 2, wherein: the convex parts are uniformly distributed on the inner side wall of the heating cavity.
4. An aerosol-generating system according to claim 3, wherein: the bellying is for following the strip bellying that heating chamber axial direction extends, it is a plurality of strip bellying follows the cross section circumferencial direction equipartition in heating chamber distributes.
5. An aerosol-generating system according to claim 4, wherein: the two ends of the strip-shaped protruding part extend to the top end and the bottom end of the heating cavity respectively, and the heating element is arranged along the whole length of the groove.
6. An aerosol-generating system according to claim 4, wherein: the cross section of the strip-shaped convex part is arc-shaped.
7. An aerosol-generating system according to claim 4, wherein: the heating cavity is internally provided with a pair of electrode rings connected with the positive electrode and the negative electrode of the power supply at two ends of the lug boss, each groove is internally provided with the heating element, and two ends of the heating element are respectively electrically connected with the electrode rings.
8. An aerosol-generating system according to any one of claims 1 to 7, wherein: the top of casing be equipped with the cigarette mouth of inserting of heating chamber intercommunication, be equipped with on the casing can with insert the shield that the cigarette mouth sheltered from or exposes.
9. An aerosol-generating system according to claim 8, wherein: the bottom end of the heating cavity is arranged in a closed mode.
10. An aerosol-generating system according to any one of claims 1 to 7, wherein: the section of the heat insulation element in the extending direction of the heating cavity is U-shaped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011543578.3A CN114668185A (en) | 2020-12-24 | 2020-12-24 | Aerosol generating system with thermal insulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011543578.3A CN114668185A (en) | 2020-12-24 | 2020-12-24 | Aerosol generating system with thermal insulation |
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| CN114668185A true CN114668185A (en) | 2022-06-28 |
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| CN202011543578.3A Pending CN114668185A (en) | 2020-12-24 | 2020-12-24 | Aerosol generating system with thermal insulation |
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