CN113712277B - Baking smoking set and heating assembly thereof - Google Patents
Baking smoking set and heating assembly thereof Download PDFInfo
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- CN113712277B CN113712277B CN202110915525.8A CN202110915525A CN113712277B CN 113712277 B CN113712277 B CN 113712277B CN 202110915525 A CN202110915525 A CN 202110915525A CN 113712277 B CN113712277 B CN 113712277B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 126
- 230000000391 smoking effect Effects 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 238000005485 electric heating Methods 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 14
- 238000007639 printing Methods 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910000679 solder Inorganic materials 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 3
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 claims description 3
- 238000005240 physical vapour deposition Methods 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 241000208125 Nicotiana Species 0.000 description 19
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 19
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 239000010965 430 stainless steel Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
Abstract
The invention relates to a baking smoking set and a heating component thereof, wherein the heating component comprises a metal-based electric heating element and a mounting seat, and the mounting seat is sleeved at one end of the heating element; the heating piece comprises a first end and a second end which are opposite in the length direction; the heating element comprises a sheet-shaped substrate made of metal or alloy, an insulating layer covered on the sheet-shaped substrate, and a conductive path arranged outside the insulating layer; the conductive path heats after being electrified; the conductive path comprises a heating resistor and a conductive electrode electrically connected with the heating resistor, and the conductive electrode is connected with an external circuit and is distributed from the first end to the second end; the mount is mounted between the conductive electrode and the second end. In the invention, the mounting seat is arranged between the conductive electrode and the second end on the metal-based electric heating element, thereby improving the safety of the temperature sensitive component and saving the energy loss.
Description
The present application is a divisional application of the invention patent application with the application date of 2018, 9, 21, the application number of 201811110088.7 and the invention name of 'baking smoking set and metal-based electric heating element'.
Technical Field
The present invention relates to cigarette substitutes, and more particularly to a baking smoking article and a heating assembly therefor.
Background
The heating sheet of the low-temperature cigarette generally adopts a ceramic substrate, and the ceramic substrate has the following problems in the use process:
1. ceramic substrates have poor toughness (< 10MPam 1/2) and are prone to fracture under long-term high temperature and mechanical shock (e.g., shock during smoke loading);
2. the thermal conductivity of partial ceramic is low (such as zirconia, thermal conductivity is 3-5 w/m.k), the heating area of the heating plate is unevenly distributed, as shown in figure 7, and the ceramic heating plate (made of zirconia) is used for heating the temperature distribution diagram of the cigarette after thermal stabilization.
3. The heating rod has too concentrated heat, so that burnt smell is easy to generate, and the taste is affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing an improved baking smoking set and a heating assembly thereof.
The technical scheme adopted for solving the technical problems is as follows: the heating component of the baking smoking set comprises a metal-based electric heating element and a mounting seat, wherein the mounting seat is sleeved at one end of the heating element; the heating piece comprises a first end and a second end which are opposite in the length direction, and the first end (A) extends outwards; the heating element comprises a sheet-shaped substrate made of metal or alloy, an insulating layer covered on the sheet-shaped substrate, and a conductive path arranged outside the insulating layer; the conductive path heats after being electrified; the conductive path comprises a heating resistor and a conductive electrode electrically connected with the heating resistor, and the conductive electrode is connected with an external circuit and is distributed from the first end to the second end; the mount is mounted between the conductive electrode and the second end.
In some embodiments, the heating resistor and the conductive electrode are arranged along the length direction of the sheet-shaped substrate, and a through hole is formed in a section of the length direction of the sheet-shaped substrate where the conductive electrode is located.
In some embodiments, the heating element comprises a first edge and a second edge which are opposite to each other in the width direction, wherein the first edge and the second edge are respectively provided with an avoidance part which gradually reduces the thickness of the heating element to the edge in the width direction, and the avoidance part is in smooth transition; the heating element comprises a first side and a second side which are opposite in the thickness direction, and the avoiding part comprises a chamfer arranged on the first side and the second side corresponding to the first side and a chamfer arranged on the first side and the second side corresponding to the second side; the sheet-shaped base material is made of stainless steel or titanium alloy material and is formed by stamping forming or wire cutting.
In some embodiments, the first end of the sheet-like substrate is provided with a tip for facilitating insertion of a cigarette.
In some embodiments, the insulating layer is formed by covering the surface of the sheet-like substrate with a glass paste containing silicon oxide, calcium oxide, and aluminum oxide and sintering the glass paste.
In some embodiments, the insulating layer is applied to the sheet substrate by spraying or printing.
In some embodiments, the conductive path is located on the insulating layer on one side, and both sides of the sheet-like substrate are covered with the insulating layer.
In some embodiments, the conductive via is a conductive layer formed on the insulating layer using physical vapor deposition or electroplating or printing.
In some embodiments, the heating resistor is formed by sintering after printing with any one of silver-palladium resistor paste, ruthenium-palladium resistor paste, platinum paste, and nickel-based paste.
In some embodiments, the conductive electrode is formed by sintering after printing with a silver-based paste.
In some embodiments, the heating element further comprises a lead connected to the conductive path, the lead being connected to the conductive electrode and leading out from the second end B.
In some embodiments, the lead is connected to the conductive electrode by way of high temperature soldering of silver-copper solder or pure silver solder or nickel solder under a protective atmosphere of 600-1100 ℃; or alternatively, the first and second heat exchangers may be,
the lead wire is connected to the conductive electrode by soldering with a high temperature solder paste.
In some embodiments, the heating element further comprises an isolation layer covering outside the conductive path.
In some embodiments, the isolation layer is a glaze layer formed by firing glass glaze, and both sides of the sheet-shaped substrate are covered with the isolation layer.
There is also provided a baking smoking article comprising a heating assembly as claimed in any one of the preceding claims.
According to the baking smoking set and the heating assembly thereof, the mounting seat is arranged between the conductive electrode and the second end on the metal-based electric heating element, and the temperature of the mounting seat is relatively low during operation, so that less heat is transferred to the mounting seat, the heat is further reduced to other parts of the baking smoking set through the mounting seat, the safety of the temperature-sensitive parts is improved, and the energy loss is saved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic cross-sectional view of a heating element of a baking smoking set according to an embodiment of the present invention inserted into a chimney with cigarettes;
FIG. 2 is a schematic view of the heating assembly of the present invention;
FIG. 3 is a schematic cross-sectional view of the heating element of FIG. 1;
FIG. 4 is an exploded view of the layers of the heating assembly of the present invention;
FIG. 5 is a graph showing a temperature field distribution when heating a cigarette with a metal sheet as a substrate;
FIG. 6 is a schematic view of the heat-generating component of FIG. 2 with a gradual width change;
fig. 7 is a graph showing a temperature field distribution when the heating element is zirconia and the cigarette is heated.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 and 2, the roasting smoking device in a preferred embodiment of the present invention comprises a cylindrical chimney 1 and a heating assembly 2, wherein the heating assembly 2 comprises a heating member 21, a lead wire 22 and a mounting seat 23.
As shown in fig. 1 to 3, the heating element 21 is in the form of a sheet and is inserted into the chimney 1 so as to be detachable. The heating element 21 comprises a first end A and a second end B which are opposite in the length direction, the first end A is outwards extended, and the heating element 21 can be inserted into the chimney 1 of the baking smoking set through the first end A.
The heating element 21 includes first and second sides C, D opposite to each other in the width direction, and the first and second sides C, D are respectively provided with escape portions 211 for gradually reducing the thickness of the heating element 21 in the width direction toward the edges. The center line of the heating element 21 is located in the middle of the chimney 1, and the distance from the opposite sides of the width direction of the heating element 21 to the inner wall surface of the chimney 1 is equal.
The two side edges of the heating element 21 are gradually thinned, when the heating element 21 is inserted into the cigarette 3, the pressure of the two side edges of the heating element 21 to tobacco can be slowed down, tobacco on the two corresponding side edges of the avoiding part 211 can not be greatly extruded and compressed, the tobacco pressure at the side end part is relieved, and the tobacco atomization efficiency is improved. The avoiding portion 211 can also present smooth transition to prevent tobacco from adhering to the side end surface of the heat generating sheet.
The heating element 21 includes first and second sides E and F opposite to each other in the thickness direction, and the relief portion 211 includes chamfers provided at edges of the first and second sides E and F corresponding to the first side C and chamfers provided at edges of the first and second sides E and F corresponding to the second side D.
The chamfer comprises an oblique angle or a round angle, the edges of the first side E and the second side F of the first side C are respectively provided with the chamfer, the edges of the first side E and the second side F of the second side D are respectively provided with the chamfer, and the avoidance parts 211 of the first side C and the second side D form round angle edges or sharp angle edges with the first side C and the second side D of the heating element 21.
In other embodiments, the avoiding portion 211 may be formed by chamfering only the edges of the first side E or the second side F corresponding to the first side C, and chamfering only the edges of the first side E or the second side F corresponding to the second side D, so that the first side C and the second side may be formed into sharp edges, which is convenient for one-step punching.
The avoiding parts 211 of the two opposite sides are in smooth transition, or polished smooth, or glazed layer, so that tobacco can be effectively prevented from being bonded at the side edges, and tobacco backlog is relieved.
Referring to fig. 4 again, the heating element 21 includes a metal sheet-like substrate 212, an insulating layer 213 covering the sheet-like substrate 212, and a conductive path 214 provided outside the insulating layer 213, the lead 22 is connected to the conductive path 214, the lead 22 is led out to the outside, and the conductive path 214 heats up to atomize tobacco after the lead 22 is electrically connected to the conductive path 214.
Preferably, the substrate of the heating element 21 is made of metal or alloy, and the sheet-shaped substrate 212 may be made of general metal such as stainless steel or titanium alloy, preferably stainless steel, such as 430 and 304 stainless steel. The thickness of the sheet substrate 212 is typically 0.2-0.8mm, and is formed by stamping or wire cutting at a low cost. The relief portion 211 on the sheet-like base 212 made of metal can be formed by punching, thereby further saving the cost. The length, width and other dimensions of the heating element 21 are matched with the diameter and length of the cigarette matched with the heating element, so that the tobacco can be heated sufficiently.
The sheet-shaped base material 212 made of metal is used as the main body of the heating element 21, and has high toughness, so that the heating element 21 can be effectively prevented from being broken under mechanical impact such as long-term high temperature smoke loading, and meanwhile, the sheet-shaped base material 212 made of metal has good heat conducting property, so that the uniformity of the surface temperature of the heating sheet is ensured, and the heating non-burning cigarette is favorably heated to obtain better taste.
As shown in fig. 5 and 7, according to the steady-state simulation experiments, stainless steel is larger than the area exceeding 215 degrees around the ceramic heating sheet such as zirconia in the same temperature field, so that the atomization efficiency is higher and the taste is better.
Preferably, the first end a of the sheet-like substrate 212 is provided with a tip 215 for facilitating the insertion of the cigarettes 3, the tip 215 being able to guide the insertion of the heating element 21, reducing the resistance during insertion.
To meet the process requirement of printing the conductive vias 214 onto the sheet-like substrate 212, the sheet-like substrate 212 includes a flat surface (not shown) between the relief portions 211 on opposite sides of the heat generating sheet, and the conductive vias 214 are printed in the area of the flat surface. The avoiding portion 211 is disposed outward from two opposite sides of the flat surface in the width direction.
The insulating layer 213 is formed by covering the surface of the sheet substrate 212 with a glass paste containing silicon oxide, calcium oxide, and aluminum oxide, and sintering at 400-1000 ℃, and the insulating layer 213 can prevent a short circuit between the sheet substrate 212 and the conductive path 214 due to the conductive property of the sheet substrate 212 made of metal or alloy.
The insulating layer 213 is coated on the sheet-like substrate 212 by spraying or printing, and the thickness of the insulating layer 213 can be designed according to the voltage withstanding requirement between the conductive path 214 and the sheet-like substrate 212, and the thickness of the insulating layer 213 is generally less than 0.1mm.
In order to prevent oxidation of the metal sheet-like substrate 212 during use at high temperature, it is preferable that both sides of the sheet-like substrate 212 are covered with the insulating layer 213. The conductive path 214 is disposed on the insulating layer 213 on one side, the insulating layer 213 may be disposed on only one side of the sheet-like substrate 212, and the insulating layer 213 may be omitted when the substrate of the heating element 21 is made of a non-metallic non-conductive material.
The conductive path 214 serves as a resistance heater, and may be a conductive layer formed on the insulating layer 213 by physical vapor deposition, plating, printing, or the like.
Preferably, the conductive path 214 includes a heating resistor 2141 and an electrical connection portion electrically connected to the heating resistor 2141, the heating resistor 2141 and the electrical connection portion are arranged along the length direction of the sheet substrate 212, and the conductive electrode 2142 is connected to an external circuit. Preferably, the electrical connection portion includes two conductive electrodes 2142 electrically connected to the heating resistor 2141.
The lead 22 is connected to the conductive electrode 2142, and led out along the length direction of the heating element 21 from one end of the heating resistor 2141, that is, the heating resistor 2141 and the conductive electrode 2142 are arranged from the first end a to the second end B, and the lead 22 is led out from the second end B.
The heating resistor 2141 may be formed by printing and sintering any one of silver-palladium resistor paste, ruthenium-palladium resistor paste, platinum paste and nickel-based paste. The pattern of the heating resistor 2141 can be flexibly set, and the thickness of the heating resistor 2141 is matched with the slurry characteristic to obtain a proper resistance value required by the heating element 21, wherein the resistance value of the heating element 21 is generally between 0.3 and 2.0 omega; the thickness of the heating resistor 2141 is generally less than 0.1mm, preferably less than 20um. Conductive electrode 2142 is formed by printing with a silver-based paste having a relatively low resistivity and then sintering.
When the lead wire 22 is electrified with an external power supply, the heating resistor 2141 can be electrified to generate heat, and the lead wire 22 can be connected with the conductive electrode 2142 by means of high-temperature brazing of silver-copper solder or pure silver solder or nickel solder under the protective atmosphere of 600-1100 ℃; the lead 22 is soldered to the conductive electrode 2142 by means of a high temperature solder paste at a temperature of more than 300 ℃.
Since the metal sheet 212 has good thermal conductivity, the through holes 2122 are formed in the longitudinal section of the sheet 212 where the conductive electrodes 2142 are located, so that the through holes 2122 isolate heat and reduce heat transferred to the second end B.
Because the conductive electrode 2142 has a relatively low temperature in the corresponding section, tobacco is not sufficiently atomized, and tobacco shreds can be stored and absorbed with a certain amount of tobacco tar, so that the leakage of tobacco tar from the tobacco shreds can be prevented or reduced.
A large temperature gradient exists in the section corresponding to the heating resistor 2141 inserted into the tobacco of the heating element 21 and the section corresponding to the conductive electrode 2142, the temperature of the section corresponding to the conductive electrode 2142 is relatively low, and the dissipation of heat is small, so that the effective utilization of energy is facilitated.
In order to isolate the heat-generating resistor 2141 from the outside air, further improving its service life and stability, the heating element 21 further comprises an isolation layer 216 covering the conductive path 214.
The spacer layer 216 is a layer of glass frit fired frit that is typically less than 0.1mm thick. Both sides of the sheet substrate 212 are covered with a release layer 216. The glaze layer makes the surface of the heating piece 21 smooth, has smaller roughness, reduces the adhesion of tobacco stains and tobacco tar after tobacco baking, and is convenient for scrubbing. In other embodiments, the isolation layer 216 may be covered only to the side of the conductive via 214.
Preferably, as shown in fig. 6, in order to facilitate the insertion of the heating element 21 into the cigarette 3, the width from the first end a to the second end B of the heating element 21 is gradually widened, so that the heating element 21 is in a sword shape, the first end a is narrow, and the resistance is smaller when the heating element 21 is inserted due to the thinning structure of the avoidance portion 211, thereby facilitating the insertion, and effectively reducing the accumulation of tobacco on the side edge of the heating element 21; the widening of the bottom of the heating element is beneficial to increasing the strength of the heating element 21 and preventing the heating element from being broken due to the fact that cigarettes are inserted and pulled for many times.
Typically, the two opposite sides of the tip 215 in the width direction have a larger included angle than the two opposite sides of the second end B of the heating element 21 in the width direction. In other embodiments, the heating element 21 may also be triangular.
As shown in fig. 2, the mounting seat 23 is sleeved on the second end B of the heating element 21, that is, sleeved on the end of the heating element 21 from which the lead 22 is led out, and sleeved on the electrical connection part. In other embodiments, the mounting block 23 may be a separate component that is separately mounted to the heating element 21.
The tip 215 is located at an end of the heating element 21 away from the mounting seat 23, the mounting seat 23 and the tip 215 are respectively located at two opposite ends of the heating element 21, and after the tip 215 end of the heating element 21 is inserted into the chimney 1, the mounting seat 23 abuts against the outer end of the chimney 1, so as to limit the insertion depth of the heating element 21.
Since the through holes 2122 are formed in the longitudinal section of the sheet-like substrate 212 where the conductive electrodes 2142 are located, heat transfer to the second end B is reduced, and thus, the excessive temperature at the mounting seat 23 can be prevented.
The possibility of generating harmful gas is reduced because no heating area is arranged between the end part of the second end B of the mounting seat 23 and the conductive electrode 2142, and the range of materials for the mounting seat 23 is wider, so that the cost is reduced. In general, the mounting seat is formed by injection molding of a high molecular polymer, and common materials include polyether-ether-ketone, high-temperature nylon and the like.
It will be appreciated that the above technical features may be used in any combination without limitation.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (15)
1. The heating component of the baking smoking set is characterized by comprising a metal-based electric heating element (21) and a mounting seat (23), wherein the mounting seat is sleeved at one end of the heating element (21); the heating element (21) comprises a first end (A) and a second end (B) which are opposite in the length direction, and the first end (A) is arranged in an outward extending mode; the heating element (21) comprises a sheet-shaped substrate (212) made of metal or alloy, an insulating layer (213) covered on the sheet-shaped substrate (212), and a conductive path (214) arranged outside the insulating layer (213); the conductive path (214) heats after being electrified; the conductive path (214) comprises a heating resistor (2141) and a conductive electrode (2142) electrically connected with the heating resistor (2141), wherein the conductive electrode (2142) is connected with an external circuit and is distributed from the first end (A) to the second end (B); the mounting seat (23) is mounted between the conductive electrode (2142) and the second end (B).
2. The heating assembly according to claim 1, wherein the heating resistor (2141) and the conductive electrode (2142) are arranged along the length direction of the sheet-like substrate (212), and a through hole (2122) is provided in a section of the length direction of the sheet-like substrate (212) where the conductive electrode (2142) is located.
3. A heating assembly according to claim 1, wherein the heating member (21) comprises a first side (C) and a second side (D) which are opposite to each other in the width direction, and the first side (C) and the second side (D) are respectively provided with a relief portion (211) which gradually reduces the thickness of the heating member (21) in the width direction toward the edge, and the relief portion (211) is smoothly transited; the heating element (21) comprises a first side (E) and a second side (F) which are opposite to each other in the thickness direction, and the avoidance part (211) comprises a chamfer arranged at the edges of the first side (E) and the second side (F) corresponding to the first side (C) and a chamfer arranged at the edges of the first side (E) and the second side (F) corresponding to the second side (D); the sheet-like base material (212) is formed by press molding or wire cutting, and is made of stainless steel or titanium alloy.
4. A heating assembly according to claim 1, wherein the first end (a) of the sheet-like substrate (212) is provided with a tip (215) facilitating the insertion of a cigarette (3).
5. The heating assembly according to claim 1, wherein the insulating layer (213) is formed by sintering a glass paste containing silicon oxide, calcium oxide, and aluminum oxide on the surface of the sheet-like substrate (212).
6. A heating assembly according to claim 5, characterized in that the insulating layer (213) is applied to the sheet-like substrate (212) by spraying or printing.
7. A heating assembly according to claim 5, wherein the conductive path (214) is located on the insulating layer (213) on one side, both sides of the sheet-like substrate (212) being covered with the insulating layer (213).
8. A heating assembly according to claim 1, wherein the conductive path (214) is a conductive layer formed on the insulating layer (213) by physical vapour deposition or electroplating or printing.
9. The heating assembly according to any one of claims 1 to 8, wherein the heat-generating resistor (2141) is formed by printing with any one of a silver-palladium resistor paste, a ruthenium-palladium resistor paste, a platinum paste, a nickel-based paste, and sintering.
10. A heating assembly according to any one of claims 1 to 8, wherein the conductive electrode (2142) is formed by sintering after printing with a silver-based paste.
11. The heating assembly according to any one of claims 1 to 8, wherein the heating element (21) further comprises a lead (22) connected to the conductive path (214), the lead (22) being connected to the conductive electrode (2142) and leading out from the second end B.
12. The heating assembly according to claim 11, characterized in that the leads (22) are connected to the conductive electrodes (2142) by means of high-temperature soldering of silver-copper solder or pure silver solder or nickel solder under a protective atmosphere at 600-1100 ℃; or alternatively, the first and second heat exchangers may be,
the lead (22) is soldered to the conductive electrode (2142) by means of a high-temperature solder paste.
13. The heating assembly of claim 1, wherein the heating element (21) further comprises an insulating layer (216) covering the conductive path (214).
14. The heating assembly according to claim 13, wherein the insulating layer (216) is a layer of glass frit fired frit, and wherein the insulating layer (216) is covered on both sides of the sheet-like substrate (212).
15. A baking smoking article comprising a heating assembly according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915525.8A CN113712277B (en) | 2018-09-21 | 2018-09-21 | Baking smoking set and heating assembly thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915525.8A CN113712277B (en) | 2018-09-21 | 2018-09-21 | Baking smoking set and heating assembly thereof |
| CN201811110088.7A CN109123805B (en) | 2018-09-21 | 2018-09-21 | Smoke curing tool and metal-based electric heating element thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113712277B (en) * | 2018-09-21 | 2024-03-01 | 深圳麦克韦尔科技有限公司 | Baking smoking set and heating assembly thereof |
| CN109123804A (en) * | 2018-09-21 | 2019-01-04 | 深圳麦克韦尔股份有限公司 | Toast smoking set and its heating component |
| CN109600867A (en) * | 2019-01-16 | 2019-04-09 | 安克创新科技股份有限公司 | A kind of ceramic heating element and the device including the ceramic heating element |
| GB201909772D0 (en) * | 2019-07-08 | 2019-08-21 | Nicoventures Trading Ltd | Heating element |
| CN112244366B (en) * | 2019-07-22 | 2022-07-19 | 湖北中烟工业有限责任公司 | Heating element and smoking system with same |
| CN116195365A (en) * | 2020-08-18 | 2023-05-30 | 芜湖艾尔达科技有限责任公司 | Metal heating body, metal heating device and manufacturing method of metal heating body |
| CN113729297A (en) * | 2021-08-13 | 2021-12-03 | 深圳市劳斯韦伯科技有限公司 | High-strength heating device, electronic cigarette and preparation method of high-strength heating device |
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| Publication number | Publication date |
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| CN113712277A (en) | 2021-11-30 |
| CN109123805B (en) | 2021-09-07 |
| CN109123805A (en) | 2019-01-04 |
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