CN114668187A - Heating cigarette smoking set - Google Patents
Heating cigarette smoking set Download PDFInfo
- Publication number
- CN114668187A CN114668187A CN202011549159.0A CN202011549159A CN114668187A CN 114668187 A CN114668187 A CN 114668187A CN 202011549159 A CN202011549159 A CN 202011549159A CN 114668187 A CN114668187 A CN 114668187A
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- China
- Prior art keywords
- heating
- smoking article
- heating element
- casing
- heating chamber
- Prior art date
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 175
- 230000000391 smoking effect Effects 0.000 title claims abstract description 103
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 54
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 16
- 239000000758 substrate Substances 0.000 description 10
- 210000000214 mouth Anatomy 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- CJDNEKOMKXLSBN-UHFFFAOYSA-N 1-chloro-3-(4-chlorophenyl)benzene Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC(Cl)=C1 CJDNEKOMKXLSBN-UHFFFAOYSA-N 0.000 description 5
- 238000009413 insulation 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
- 238000000034 method Methods 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
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 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
- 239000003546 flue gas Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 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
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-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
- 230000001174 ascending effect Effects 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
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 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
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 125000006850 spacer group Chemical group 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
- 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
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a heating cigarette smoking set 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 and used for accommodating a smoking product is formed 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 also arranged in the shell, and when the smoking product is inserted into the heating cavity, the outer wall of the smoking product is abutted against the convex parts, and a gap is formed between the outer wall of the smoking product and the heating element. The heating element of the smoking set is not in direct contact with the cigarette paper of the smoking article, so that the problem of excessive baking of the cigarette paper caused by direct contact is effectively avoided.
Description
Technical Field
The invention belongs to the technical field of smoking articles, and particularly relates to a heating cigarette smoking set.
Background
Compared with the traditional cigarette, the heating cigarette smoking device directly heats smoking articles such as tobacco or nicotine, the heating temperature is 220-250 ℃, smoke is gradually volatilized after baking, and harmful smoke components generated by 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 3 heating bodies is in direct contact with the smoking article, the cigarette paper in the smoking article receives heat transferred by the heating element at first, and the cigarette paper in the thin smoking article is easy to be excessively baked, so that the cigarette paper volatilizes acidic substances, and the smoking taste is influenced.
Disclosure of Invention
The heating element of the smoking set is not in direct contact with the cigarette paper of the smoking product, so that the problem of excessive baking of the cigarette paper caused by direct contact is effectively avoided.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a heating cigarette smoking set, includes 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 in the casing with the outside intercommunication be used for holding smoking article heating chamber, be formed with the ascending heating chamber of opening in the casing, be equipped with a plurality of bellyings on the inside wall of heating chamber, adjacent two be formed with the recess between the bellyings, be equipped with heating element in the recess, still be equipped with in the casing and do the power of heating element power supply, smoking article insert to when in the heating chamber, smoking article's outer wall supports and leans on the bellyings, and with there is the clearance between 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 content of the first and second substances,
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 protruding 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, be located in the casing the periphery in heating chamber is equipped with the insulating layer, be located in the casing the top position department in heating chamber is equipped with thermal-insulated gasket, be located in the casing the bottom position department in heating chamber is equipped with the fin.
Specifically, still be equipped with clean mouthful on the bottom face of casing, the inside of casing still be equipped with clean mouthful with the clean passageway of the bottom intercommunication in heating chamber, be equipped with the clean stopper that can open and close on the clean mouthful, the axis of clean passageway with the axis coincidence in heating chamber.
Specifically, the heating chamber is rolled up by the substrate layer and is formed the inboard of substrate layer is provided with the flute layer, the crest on flute layer constitutes the bellying, the trough on flute layer constitutes the recess.
Specifically, the substrate layer is made of aluminum oxide, glass or metal foil.
Specifically, the groove is printed or coated with a resistance circuit to form the heating element, and a protective glaze layer covers the resistance circuit.
Compared with the prior art, the invention has the beneficial effects that: be equipped with the bellying on the inside wall of the heating chamber of smoking set, heating element sets up the groove between bellying and bellying for the cigarette paper and the heating element of smoking article are not direct contact, have avoided excessive the toasting 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.
FIG. 1 is a view of the exterior of a heated cigarette smoking article according to an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a heated cigarette smoking article provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a heated cigarette smoking article provided by an embodiment of the present invention;
fig. 4 is a schematic diagram of a heating chamber structure according to an embodiment of the present invention;
fig. 5 is a schematic view of the air flow in the heating chamber according to an embodiment of the present invention;
fig. 6 is an expanded schematic view of a heating chamber according to an embodiment of the present invention;
FIG. 7 is a heating element and protrusion relative alignment pattern in a heating chamber according to an embodiment of the present invention;
fig. 8 is a schematic axial view of 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-a boss; 7-a groove; 8-control key; 9-a dust cover; 10-a heat insulating spacer; 11-a heat sink; 12-a thermally insulating layer; 13-a PCB board; 14-cleaning the mouth; 15-cleaning the channel; 16-a cleaning plug; 17-an air flow channel; 18-a substrate layer; 19-a corrugated layer; 20-an electrode ring; 21-a conductive spring plate; 22-a power supply; 23-lower fixing ring.
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, a heating cigarette smoking set comprises a housing 1, a cigarette 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, a smoking article 4 can be inserted into the heating cavity 3 from the cigarette insertion opening 2 and can be removed from the cigarette insertion opening 2, a heating element 5 is arranged in the heating cavity 3, a power supply 22 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 cigarette 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 smoking article 4 refers to a product which generates flavor from a smoking material by applying heat but does not cause combustion of the material, in this embodiment, the smoking article 4 is a low-temperature cigarette, and includes a filter section and a smoking section wrapped by cigarette paper, and a tobacco material or a nicotine material 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 adapted for low temperature smoking set heating may also be used.
Specifically, a plurality of convex parts 6 are uniformly distributed on the inner side wall of the heating cavity 3, a groove 7 is formed between every two adjacent convex parts 6, the heating element 5 is arranged in the groove 7, the convex parts 6, the groove 7 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 convex parts 6, 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 heats to bake out smoke from the smoking article 4 for smoking.
Referring to fig. 4 and 8, in the embodiment, the inner side wall of the heating cavity 3 is provided with the protrusion portion 6, and the heating element 5 is arranged at the groove 7 between the protrusion portion 6 and the protrusion portion 6, 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 non-uniformity caused by direct contact are avoided, and the smoking experience of a user is better; in addition, the heating element 5 is arranged inside the heating cavity 3 and directly faces the smoking articles 4 for radiation heat transfer, and the heating efficiency is high. It should be noted that it is not a requirement that the protrusions 6 are uniformly distributed on the inner side wall of the heating chamber 3, and the protrusions 6 may be non-uniformly arranged on the inner side wall of the heating chamber 3.
In practical applications, the power source 22 may be a lithium ion battery, a nickel hydrogen battery, a hydrogen gas battery, or the like, a charging port and a control button 8 may be further disposed on the housing 1, the power source 22 may be charged through the charging port, and the on/off of the power source 22 of the heating element 5 may be controlled through the control button 8. The housing 1 is used to realize the appearance and protect the internal arrangement, and a plastic housing may be used.
In some possible embodiments, a dust cover 9 is arranged on the housing 1, and the dust cover 9 can slide from one end of the smoking set to the other end through a slide rail; when using the smoking set, can slide dust cover 9 and expose and insert cigarette mouth 2, smoking article 4 can insert in heating chamber 3 from inserting cigarette mouth 2, and when the suction finished, can slide dust cover 9 and cover inserting cigarette mouth 2, prevent that foreign matters such as dust from falling into heating chamber 3.
Referring to fig. 2, the upper end of the heating cavity 3 is connected with the cigarette inserting port 2 and is communicated with the outside air through the cigarette inserting port 2, the lower end of the heating cavity 3 is provided with the lower fixing ring 23, the heating cavity 3 is fixed in the shell 1 through the lower fixing ring 23, and when the heating cavity 3, the cigarette inserting port 2 and the smoking article 4 are concentrically arranged, the smoothness of heat and air flow can be ensured. Set up heat insulating gasket 10 above heating chamber 3, the heat flow direction of interrupt heat-generating body is to inserting cigarette mouth 2 and casing 1, has set up fin 11 below lower fixed ring 23, distributes away the heat of following the conduction of lower fixed ring 23, prevents the local overheat of casing 1. A heat insulation layer 12 is arranged between the periphery of the heating cavity 3 and the shell 1, and the heat insulation layer 12 can prevent the heat from diffusing outwards, wherein the heat insulation layer 12 can adopt an air heat insulation layer, the heat loss is reduced to the minimum by utilizing the low heat conductivity of the air, and certainly, heat insulation materials such as heat insulation cotton can also be adopted.
Referring to fig. 3, specifically, a PCB 13 is further disposed in the casing 1, the PCB 13 is electrically connected to the power supply 22 and the heating element 5 to form a heating control circuit, the control button 8 is electrically connected to the PCB 13 (or connected to other types of signals), and when the user controls the smoking set to be turned on or turned off through the control button 8, the PCB 13 receives and sends a signal to complete corresponding indication.
Referring to fig. 1-3, in some possible embodiments, a cleaning opening 14 is further provided on the bottom end face of the housing 1, a cleaning passage 15 for communicating the cleaning opening 14 with the bottom end of the heating chamber 3 is further provided inside the housing 1, the heat sink 11 is provided on the outer wall of the cleaning passage 15, a cleaning plug 16 which can be opened and closed is provided on the cleaning opening 14, the cleaning plug 16 is made of high temperature resistant rubber, the axis of the cleaning passage 15 coincides with the axis of the heating chamber 3, and in the using process, the cleaning opening 14 is opened only when the smoking set needs cleaning, and is closed by the cleaning plug 16 in other time periods. By the design mode, residues such as tobacco and the like falling in the smoking process can automatically enter the cleaning channel 15 under the action of gravity, the residues can be taken out only by pulling out the cleaning plug 16, and the smoking set is very convenient to clean.
Referring to fig. 5, it will be appreciated that in some possible embodiments, an airflow channel 17 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 7 and the smoking article 4, i.e. the airflow channel 17 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 17 from the smoke insertion opening 2.
It should be noted that the grooves 7 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 6 on the heating cavity 3, the groove 7 formed by the protrusion 6 and the protrusion 6 forms the airflow channel 17 with the smoking article 4, the inner surface area of the heating cavity 3 is increased due to the arrangement of the protrusion 6, the amount of air entering the airflow channel 17 is increased, the heating element 5 is arranged at the groove 7, a gap with the size of the protrusion 6 is formed between the groove 7 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 6 firstly receives the heat of the heating element 5, the cold air stored in the groove 7 is heated into hot air, and the smoking article 4 receives the heat conducted by the protrusion 6, 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 17, has become hot-air behind the airflow channel 17 that recess 7 and smoking article 4 formed, and hot-air passes smoking article 4 with the heat flow that remains before in airflow channel 17 together, 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 6, the heating element 5 penetrates through the grooves 7 of the protruding portions 6, the surface area of the heating cavity 3 is increased by the arrangement of the protruding portions 6, the grooves 7 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 7, specifically, the protrusion 6 is a strip-shaped protrusion extending along the axial direction of the heating cavity 3, the plurality of strip-shaped protrusions are uniformly distributed along the circumferential direction of the cross section of the heating cavity 3, a heating element 5 is arranged in each groove 7, a pair of electrode rings 20 used for being connected with an external power supply 22 is arranged at two ends of the protrusion 6 in the heating cavity 3, two ends of the heating element 5 are respectively electrically connected with the pair of electrode rings 20, and the external power supply 22 supplies power to the heating element 5 through the electrode rings 20, so as to heat the smoking article 4. Wherein, for uniform heating of the smoking article 4, the heating element 5 is preferably arranged along the length of the groove 7, and furthermore, the cross-sectional shape of the protrusion 6 may be designed as a circular arc, an elliptical arc or other arcs according to design requirements.
Of course, in practical application, the protrusion 6 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 17 is formed between the axial grooves and the smoking article 4, and the heating element 5 can be arranged in the circumferential groove 7 and/or the axial grooves, so that the heat received by the smoking article 4 is a heat transfer mode of three ways, namely heat conduction of the convex portions 6, air convection heat transfer of the grooves 7 and radiation heat transfer because the convex point area of the convex portions 6 is small and the contact area with the smoking article 4 is also small.
Specifically, the heating element 5 is formed by printing or coating the resistor circuit on the groove 7, and the resistor circuit is 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 18, a corrugated layer 19 is arranged on the inner side of the substrate layer 18, the wave crests of the corrugated layer 19 form the convex portions 6, the wave troughs of the corrugated layer 19 form the grooves 7, 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. 6 and 7, the heating element 5 is disposed between the wave crests of the corrugated layer 19, one end of the electrode ring 20 is fixed on the substrate layer 18 and is electrically connected to the PCB 13 for controlling the output of current, the other end of the electrode ring is provided with the conductive elastic sheet 21, one end of the conductive elastic sheet 21 is fixed on the electrode ring 20, the other end of the conductive elastic sheet 21 is a free end and can bounce to two sides and is communicated with the heating element 5, the conductive elastic sheet 21, the electrode ring 20 and the heating element 5 jointly form a complete circuit loop, when current starts to be output, the electrode ring 20, the conductive elastic sheet 21 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 18 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 green body (a base material layer 18), and arranging corrugated arcs on the convex layer in a rolling way 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 7 of the corrugated layer 19 to form a heating element 5 for heating; the heating element 5 and the corrugated layer 19 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 18, 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 7 of the corrugated layer 19 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 necessary or exhaustive for all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a heating cigarette smoking set, includes 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 in the casing and be used for holding smoking article heating chamber, its characterized in that with outside intercommunication: the heating cavity is characterized in that a plurality of protruding portions are arranged on the inner wall of the heating cavity, a groove is formed between every two adjacent protruding portions, the heating element is arranged 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. The heated cigarette smoking article of 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. The heated cigarette smoking article of claim 2, wherein: the convex parts are uniformly distributed on the inner side wall of the heating cavity.
4. The heated cigarette smoking article of 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. The heated cigarette smoking article of 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. The heated cigarette smoking article of claim 4, wherein: the cross section of the strip-shaped convex part is arc-shaped.
7. The heated cigarette smoking article of 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. The heated cigarette smoking article of any one of claims 1-7, 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 exposed.
9. The heated cigarette smoking article of claim 8, wherein: still be equipped with clean mouthful on the bottom face of casing, the inside of casing still be equipped with clean mouthful with the clean passageway of the bottom intercommunication in heating chamber, be equipped with the clean stopper that can open and close on the clean mouthful, the axis of clean passageway with the axis coincidence in heating chamber.
10. The heated cigarette smoking article of any one of claims 1-7, wherein: the periphery that is located in the casing heating chamber is equipped with the insulating layer, be located in the casing the top position department in heating chamber is equipped with thermal-insulated gasket, be located in the casing the bottom position department in heating chamber is equipped with the fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011549159.0A CN114668187A (en) | 2020-12-24 | 2020-12-24 | Heating cigarette smoking set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011549159.0A CN114668187A (en) | 2020-12-24 | 2020-12-24 | Heating cigarette smoking set |
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| Publication Number | Publication Date |
|---|---|
| CN114668187A true CN114668187A (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011549159.0A Pending CN114668187A (en) | 2020-12-24 | 2020-12-24 | Heating cigarette smoking set |
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| Country | Link |
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| CN (1) | CN114668187A (en) |
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