CN220545834U - Heating element and aerosol generating device - Google Patents
Heating element and aerosol generating device Download PDFInfo
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- CN220545834U CN220545834U CN202322057381.4U CN202322057381U CN220545834U CN 220545834 U CN220545834 U CN 220545834U CN 202322057381 U CN202322057381 U CN 202322057381U CN 220545834 U CN220545834 U CN 220545834U
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- heating
- electrode
- heating element
- aerosol
- area
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 217
- 239000000443 aerosol Substances 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 241000208125 Nicotiana Species 0.000 description 11
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 235000019505 tobacco product Nutrition 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 235000009499 Vanilla fragrans Nutrition 0.000 description 1
- 244000263375 Vanilla tahitensis Species 0.000 description 1
- 235000012036 Vanilla tahitensis Nutrition 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The embodiment of the application discloses heating element and aerosol generating device, heating element includes: a substrate defining a chamber for receiving at least a portion of the aerosol-generating article; a heating element attached to an outer surface of the substrate to transfer heat generated by the heating element to the aerosol-generating article by the substrate; an electrode covering a partial surface of the heating element to be electrically connected with the heating element; the electrode comprises a positive electrode and a negative electrode which are adjacently arranged and longitudinally extend, the heating element is positioned between the positive electrode and the negative electrode, the heating element comprises a first heating area and a second heating area, the resistance value of the first heating area is smaller than that of the second heating area, the second heating area is electrically connected with the electrode, and the first heating area and the electrode are basically arranged at 180 degrees along the circumferential direction of the matrix. By the mode, the heating element can be heated more uniformly.
Description
[ field of technology ]
The embodiment of the application relates to the technical field of aerosol, in particular to a heating component for generating aerosol by heating an aerosol product and an aerosol generating device.
[ background Art ]
Conventional tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke, and products exist in the prior art that release compounds upon heating without burning to replace these conventional tobacco products. Examples of such products are aerosol-generating devices, which typically comprise a heating component and an aerosol-product, which may be a solid tobacco or non-tobacco filler, or a liquid, which may comprise nicotine and/or a fragrance and/or an aerosol-generating substance (e.g. glycerin), etc. The heating component heats the aerosol product to volatilize or atomize at least a portion of the active substances of the aerosol product by heating to generate aerosol.
The heating component of the device usually adopts a resistance circumferential heating mode, but the temperature is easy to be unevenly distributed during resistance heating, the high-temperature part is mainly concentrated at the part far away from the electrode, and the temperature of the part close to the electrode is lower.
[ utility model ]
The embodiment of the application provides a heating element to solve the inhomogeneous technical problem of heating when current aerosol generating device adopts resistance circumference to heat.
A heating assembly for use in an aerosol-generating device to heat an aerosol-generating article to generate an aerosol, comprising:
a substrate defining a chamber for receiving at least a portion of the aerosol-generating article;
a heating element attached to an outer surface of the substrate to transfer heat generated by the heating element to the aerosol-generating article by the substrate;
an electrode covering a partial surface of the heating element to be electrically connected with the heating element;
the electrode comprises a positive electrode and a negative electrode which are adjacently arranged and longitudinally extend, the heating element is positioned between the positive electrode and the negative electrode, the heating element comprises a first heating area and a second heating area, the resistance value of the first heating area is smaller than that of the second heating area, the second heating area is electrically connected with the electrode, and the first heating area and the electrode are arranged along the circumference of the matrix at 180 degrees basically.
In one embodiment, the second heating region is symmetrically distributed about the first heating region.
In one embodiment, the surface of the electrode is attached with an insulator.
In one embodiment, the insulating member is provided with a through hole, and the heating assembly further includes a wire electrically connected to the electrode through the through hole.
In one embodiment, the material of the first heating region comprises silver or copper.
In one embodiment, the shape of the first heating region, the second heating region, and the electrode are substantially the same.
In one embodiment, the area of the positive electrode and the area of the negative electrode are substantially the same.
In one embodiment, the area size of the first heating region is substantially the same as the area size of the electrode.
In one embodiment, the heating elements include a plurality of heating elements, and the plurality of heating elements are sequentially distributed along the length direction of the substrate.
In one embodiment, a plurality of the first heating regions are aligned in the longitudinal direction.
The embodiment of the application also provides an aerosol-generating device, which comprises the heating assembly and a power supply unit for supplying electric energy to the heating assembly.
According to the heating assembly provided by the embodiment, the heating element is divided into the first heating area and the second heating area, and the electrodes of the first heating area and the heating assembly are arranged at 180 degrees basically along the circumferential direction of the substrate, so that the phenomenon that the high-temperature part is mainly concentrated at the part far away from the electrodes and the temperature of the part close to the electrodes is lower during resistance heating can be balanced, and the heating element can be heated more uniformly.
[ description of the drawings ]
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to scale, unless expressly stated otherwise.
Fig. 1 is a schematic structural view of an aerosol-generating device according to an embodiment of the present application;
fig. 2 is an exploded view of the heating assembly of the aerosol-generating device of fig. 1 at a single viewing angle;
FIG. 3 is an exploded view of the heating assembly of FIG. 2 from another perspective;
FIG. 4 is a schematic illustration of a heating element of the heating assembly of FIG. 3;
FIG. 5 is a schematic perspective view of a heating element according to another embodiment of the present disclosure in one direction;
fig. 6 is a schematic perspective view of the heating element of fig. 5 in another orientation.
[ detailed description ] of the utility model
In order to facilitate an understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "fixed" to/affixed to "another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.
In the embodiments of the present application, the "mounting" includes welding, screwing, clamping, adhering, etc. to fix or limit a certain element or device to a specific position or place, where the element or device may be fixed at the specific position or place or may be movable within a limited range, and the element or device may be removable or not removable after being fixed at the specific position or place, which is not limited in the embodiments of the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
An embodiment of the present application provides an aerosol-generating device 100, as shown in fig. 1, the aerosol-generating device 100 includes a power unit 10, a main board 20, a heating component 30 and a housing chamber 40, a controller of the aerosol-generating device 100 is disposed on the main board 20, the power unit 10 and the heating component 30 are respectively electrically connected with the controller, so that the controller can control the power unit 10 to provide electric energy to the heating component 30, and the housing chamber 40 is used for housing an aerosol-generating product 200 used with the aerosol-generating device 100. The heating means 30 is formed with a chamber 31, and when the aerosol-generating article 200 is accommodated in the accommodating chamber 40, a part of the aerosol-generating article 200 is positioned in the chamber 31, so that the heating means 30 can heat the aerosol-generating article 200, and part of the active material filled in the aerosol-generating article 200 is volatilized by heating to generate an aerosol, and a user sucks the aerosol on the aerosol-generating article 200. Wherein the power supply unit 10 may be a rechargeable or non-rechargeable battery cell.
The aerosol-generating article 200 preferably employs a tobacco-containing material that releases volatile compounds from the article upon heating; or may be a non-tobacco material capable of being heated and thereafter adapted for electrical heating for smoking. The aerosol-generating article 200 preferably employs a solid matrix, which may comprise one or more of powders, granules, shredded strips, ribbons or flakes of one or more of vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco; alternatively, the solid substrate may contain additional volatile flavour compounds, either tobacco or non-tobacco, to be released when the substrate is heated.
As shown in fig. 2, the heating assembly 30 includes a base 32 and a heating element 33, the base 32 has a first surface 321 and a second surface 322 opposite to each other along a length direction thereof, and a side 323 extending between the first surface 321 and the second surface 322, a chamber 31 extends between the first surface 321 and the second surface 322, and the chamber 31 communicates with the first surface 321 and the second surface 322. The heating element 33 is made of a resistance heating material capable of generating heat when being electrified, the heating element 33 can be attached to the side 323 of the substrate 32 by any one of thick film printing, surface spraying, electroplating, PVD or CVD coating, laser carving and the like, so that heat generated on the heating element 33 can be transferred to the substrate 32, and then transferred to the aerosol-generating product 200 in the chamber 31 by the substrate 32, thereby realizing heating of the aerosol-generating product 200.
It will be readily appreciated that the substrate 32 is fabricated from a highly thermally conductive material to efficiently transfer heat generated by the heating element 33 to the aerosol-generating article 200. The high thermal conductivity material may be a metal or a ceramic material, and the ceramic material may be any one of an oxide, nitride, carbide, boride, and the like.
As shown in fig. 1, the aerosol-generating device 100 further comprises an air inlet 50 for the entry of external air, and an air flow channel 60 in fluid communication with the air inlet 50, the air flow channel 60 being in communication with the chamber 31, such that when a user draws on the aerosol-generating article 200, external air enters the aerosol-generating device 100 through the air inlet 50, then enters the chamber 31 along the air flow channel 60, finally enters the aerosol-generating article 200, and carries the aerosol generated in the aerosol-generating article 200 out for inhalation by the user.
As shown in fig. 2, the heating assembly 22 further includes an electrode 331 disposed on the heating element 33, where the electrode 331 covers a partial surface of the heating element 33 to be electrically connected to the heating element 33, and similarly, the electrode 331 may be attached to the surface of the heating element 33 by any one of thick film printing, surface spraying, electroplating, PVD or CVD coating, laser engraving, and the like. The electrode 331 includes a positive electrode 3311 and a negative electrode 3312 disposed opposite to each other, and the heating element 33 is located between the positive electrode 3311 and the negative electrode 3312.
As shown in fig. 2, 3 and 4, the positive electrode 3311 and the negative electrode 3312 are disposed adjacently and longitudinally extending between the first surface 321 and the second surface 322, the heating element 33 includes a first heating region 332 and a second heating region 333, the second heating region 333 is distributed on both sides of the first heating region 332, wherein the second heating region 333 on one side is electrically connected with the positive electrode 3311, the second heating region 333 on the other side is electrically connected with the negative electrode 3312, the resistance value of the first heating region 332 is smaller than the resistance value of the second heating region 333, and the first heating region 332 and the electrode 331 are disposed substantially 180 degrees in the circumferential direction of the substrate 32, that is, the first heating region 332 is disposed right opposite to the electrode 331, and the second heating region 333 is symmetrically distributed with respect to the first heating region 332.
Since the resistance value of the first heating region 332 is smaller than the resistance value of the second heating region 333, so that when the electrode 331 supplies power to the heating element 33, current flows from the positive electrode 3311 to the negative electrode 3312, since the first heating region 332 and the second heating region 333 are connected in series, the current flowing through the first heating region 332 and the second heating region 333 is equal, and since the resistance value of the first heating region 332 is smaller than the resistance value of the second heating region 333, the heat generated by the first heating region 332 is smaller than the heat generated by the second heating region 333. The material of the first heating region 332 may preferably be a low resistance metal such as silver or copper, and the material of the second heating region 333 may preferably be a high resistance metal such as iron or aluminum.
In this embodiment, the first heating region 332 is disposed right opposite to the electrode 331, so that the first heating region 332 is located in the central region of the heating element 33, and the resistance heating characteristic is balanced because the resistance heating itself has the characteristic that the temperature of the central region is generally higher, that is, the temperature of the two ends is generally lower, that is, the temperature of the second heating region 333 is lower, the temperature of the first heating region 332 is higher, while the resistance value of the second heating region 333 is set higher, and the resistance value of the first heating region 332 is set lower, so that the entire heating element 33 can generate heat uniformly.
In some embodiments, to further balance the resistive heating characteristics and thereby provide a better uniform heating effect of the heating element 33, the first heating region 332, the second heating region 333, and the electrode 331 are substantially identical in shape. As shown in fig. 4, when the heating element 33 is unfolded, the first heating region 332, the second heating region 333, and the electrode 331 are rectangular in shape, so that the second heating region 333 may be better symmetrically arranged about the first heating region 332, which is more advantageous for balancing the above-described characteristics of resistance heating.
And in some embodiments, as shown in fig. 4, when the shapes of the first heating region 332, the second heating region 333 and the electrode 331 are substantially the same, the sum of the areas of the positive electrode 3311 and the negative electrode 3312, that is, the area of the electrode 331 is substantially the same as the area of the first heating region 332, and the areas of the second heating regions 333 distributed on both sides of the first heating region 332 are also substantially the same, which is advantageous for further balancing the above heating characteristics of the resistance.
Alternatively, in some embodiments, when the shapes of the first heating region 332, the second heating region 333, and the electrode 331 are substantially the same, the areas of the electrode of the positive electrode 3311 and the electrode of the negative electrode 3312 are also substantially the same, and the areas of the second heating region 333 distributed on both sides of the first heating region 332 may also be substantially the same, which is also advantageous for further balancing the above heating characteristics of the resistance.
In some embodiments, as shown in fig. 2, to avoid shorting the positive electrode 3311 and the negative electrode 3312, an insulating layer 34 is also attached to the surface of the electrode 331, the insulating layer 34 being used to electrically isolate the electrode 331. And, in some embodiments, the insulating layer 34 is provided with a through hole 341, and the heating element 33 further includes a wire 35 for electrically connecting the electrode 331 with the motherboard 20, where the wire 35 passes through the through hole 341 and is electrically connected with the electrode 331.
In some embodiments, as shown in fig. 5 and 6, the heating element 33 includes a first heating element 334 and a second heating element 335 sequentially distributed along the length of the substrate 32, the first heating element 334 is provided with an electrode 3341, and the first heating element 334 also includes a first heating region 3342 and a second heating region 3343; similarly, the second heating element 335 is provided with an electrode 3351, a first heating region 3352 and a second heating region 3353, the first heating region 3342 and the electrode 3341 are disposed substantially 180 degrees along the circumferential direction of the substrate 32, and the second heating region 3352 and the electrode 3351 are disposed substantially 180 degrees along the circumferential direction of the substrate 32, so as to balance the resistive heating characteristics of the first heating element 334 and the second heating element 335, i.e., the temperature of the central region far from the electrode is higher and the temperature of the two end regions near the electrode is lower during resistive heating.
Configuring the heating element 33 as a first heating element 334 and a second heating element 335 distributed sequentially along the length of the substrate 32 may result in a more uniform amount of heat being generated by the heating element 33 and thus transferred to the aerosol-generating article 200 than if the heating element 33 alone was heated. While in other embodiments the heating element 33 may be more, for example 3 or 4.
Further in some embodiments, as shown in fig. 5 and 6, the first heating area 3342 and the second heating area 3352 are aligned in the longitudinal direction, where the electrode 3341 of the first heating element 334 and the electrode 3351 of the second heating element 335 are also aligned in the longitudinal direction, that is, when the heating element 33 includes a plurality of heating elements, the plurality of first heating areas are disposed on the plurality of first heating areas in the longitudinal direction, so that the heating temperature of the entire heating element 33 can be balanced better, and the heating element 33 can generate uniform heat on the whole.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present application, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in details for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (11)
1. A heating assembly for use in an aerosol-generating device to heat an aerosol-generating article to generate an aerosol, comprising:
a substrate defining a chamber for receiving at least a portion of the aerosol-generating article;
a heating element attached to an outer surface of the substrate to transfer heat generated by the heating element to the aerosol-generating article by the substrate;
an electrode covering a partial surface of the heating element to be electrically connected with the heating element;
the electrode comprises a positive electrode and a negative electrode which are adjacently arranged and longitudinally extend, the heating element is positioned between the positive electrode and the negative electrode, the heating element comprises a first heating area and a second heating area, the resistance value of the first heating area is smaller than that of the second heating area, the second heating area is electrically connected with the electrode, and the first heating area and the electrode are arranged along the circumference of the matrix at 180 degrees basically.
2. The heating assembly of claim 1, wherein the second heating region is symmetrically distributed about the first heating region.
3. The heating assembly of claim 1, wherein an insulator is attached to a surface of the electrode.
4. A heating assembly as claimed in claim 3, wherein the insulating member is provided with a through hole, and the heating assembly further comprises a wire electrically connected to the electrode through the through hole.
5. The heating assembly of claim 1, wherein the material of the first heating region comprises silver or copper.
6. The heating assembly of claim 1, wherein the first heating region, the second heating region, and the electrode are substantially identical in shape.
7. The heating assembly of claim 6, wherein the area of the positive electrode and the area of the negative electrode are substantially the same.
8. The heating assembly of claim 6, wherein an area size of the first heating region is substantially the same as an area size of the electrode.
9. The heating assembly of claim 1, wherein the heating element comprises a plurality of the heating elements, the plurality of the heating elements being sequentially distributed along the length of the substrate.
10. The heating assembly of claim 9, wherein a plurality of the first heating zones are aligned in a longitudinal direction.
11. An aerosol-generating device comprising a heating assembly according to any of claims 1-10, and a power supply unit for providing electrical energy to the heating assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322057381.4U CN220545834U (en) | 2023-08-01 | 2023-08-01 | Heating element and aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322057381.4U CN220545834U (en) | 2023-08-01 | 2023-08-01 | Heating element and aerosol generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220545834U true CN220545834U (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322057381.4U Active CN220545834U (en) | 2023-08-01 | 2023-08-01 | Heating element and aerosol generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220545834U (en) |
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2023
- 2023-08-01 CN CN202322057381.4U patent/CN220545834U/en active Active
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