CN219182821U - Heating assembly and aerosol-generating device - Google Patents
Heating assembly and aerosol-generating device Download PDFInfo
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- CN219182821U CN219182821U CN202222527232.5U CN202222527232U CN219182821U CN 219182821 U CN219182821 U CN 219182821U CN 202222527232 U CN202222527232 U CN 202222527232U CN 219182821 U CN219182821 U CN 219182821U
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Abstract
The application provides a heating element and aerosol-generating device, the heating element comprising: a tubular base; the electric heating film layer is arranged on the surface of the substrate; the electric heating film layer comprises a first electric heating film layer and a second electric heating film layer which are distributed along the circumferential direction of the matrix; the first electrically heated film layer is configured to initiate heating prior to the second electrically heated film layer; a conductive element for feeding electric power to the electrically heated film layer; the inner diameter of the tubular matrix is between 6mm and 15mm. The first electric heating film layer and the second electric heating film layer are circumferentially arranged, and the first electric heating film layer starts heating before the second electric heating film layer; the preheating time of the aerosol forming substrate is shortened, the suction waiting time is reduced, the nozzle scalding caused by the too high aerosol temperature is avoided, and the use experience of a user is improved.
Description
Technical Field
The application relates to the technical field of electronic atomization, in particular to a heating component and an aerosol generating device.
Background
Smoking articles such as cigarettes and cigars burn tobacco during use to produce smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. An example of such a product is a so-called heated non-combustible product, which releases a compound by heating tobacco rather than burning tobacco.
The prior aerosol generating device has the problems that the preheating time of an aerosol forming substrate is longer, the heated and atomized aerosol is high in temperature, the nozzle is easy to burn, and the use experience of a user is low.
Disclosure of Invention
The application provides a heating element and aerosol generating device, and it is longer to aim at solving the preheating time that exists among the current aerosol generating device, and the aerosol temperature is too high and easily leads to scalding the mouth, and user's use experience is low problem.
In one aspect, the present application provides a heating assembly comprising:
a tubular base;
the electric heating film layer is arranged on the surface of the substrate; the electric heating film layer comprises a first electric heating film layer and a second electric heating film layer which are distributed along the circumferential direction of the matrix; the first electrically heated film layer is configured to initiate heating prior to the second electrically heated film layer;
a conductive element for feeding electric power to the electrically heated film layer;
wherein the inner diameter of the tubular matrix is between 6mm and 15mm.
In one example, the tubular substrate has an axial extension of 15mm to 25mm.
In one example, the conductive element includes a first electrode, a second electrode, and a third electrode extending in an axial direction of the substrate;
the first electrode, the second electrode and the third electrode are sequentially arranged at intervals along the circumferential direction of the matrix, the first electric heating film layer is arranged between the first electrode and the third electrode, and the second electric heating film layer is arranged between the second electrode and the third electrode.
In one example, the first electrode or the second electrode has a circumferential extension that is less than a circumferential extension of the third electrode.
In one example, the first electrode or the second electrode has a circumferential extension of 0.2-2 mm, and the third electrode has a circumferential extension of 2-5 mm.
In an example, the conductive element further includes a fourth electrode extending in a circumferential direction of the base body, the fourth electrode being connected to the first electrode and disposed in spaced relation to the electrically heated film layer; and/or the number of the groups of groups,
the conductive element further includes a fifth electrode extending in a circumferential direction of the base body, the fifth electrode being connected to the second electrode and being spaced apart from the electrically heated film layer; and/or the number of the groups of groups,
the conductive element further includes a sixth electrode extending in a circumferential direction of the base body, the sixth electrode being connected to the third electrode and disposed at intervals from the electrically heated film layer.
In one example, the fourth electrode, the fifth electrode, and the sixth electrode are disposed at the same end of the substrate.
In one example, a first electrode connection is also included;
the first electrode connection member includes a contact portion, at least a portion of which protrudes toward a surface of the base body to be in contact with the fourth electrode, the fifth electrode, or the sixth electrode to form an electrical connection.
In one example, the first electrode connection further comprises an extension;
the extension portion extends towards a position far away from the base body relative to the contact portion, and the extension portion is used for coupling with a power supply.
In one example, a second electrode connector and a holder are also included;
the second electrode connecting member extends in an axial direction of the base body, and the holder holds the second electrode connecting member on the base body to be in contact with and form an electrical connection with the first electrode, the second electrode, or the third electrode.
In one example, the electrically heated film layer includes an infrared electrothermal coating for receiving electrical power to generate heat to generate infrared light.
In one example, the first electrically heated film layer has a same circumferential extension as the second electrically heated film layer.
In one example, no electrically heated film layer is disposed between the first electrode and the second electrode; or alternatively, the process may be performed,
a third electrically heated film layer is disposed between the first electrode and the second electrode, the first electrically heated film layer, the second electrically heated film layer, and the third electrically heated film layer being configured to be independently activatable so as to independently heat different portions of the aerosol-forming substrate.
In an example, the device further comprises a temperature sensor for detecting temperature, and a mark of a preset position is arranged on the surface of the substrate and used for positioning when the temperature sensor is assembled.
Another aspect of the present application provides an aerosol-generating device comprising:
a housing assembly;
a heating assembly disposed within the housing assembly;
and the battery cell is used for providing electric power.
The heating component and the aerosol generating device provided by the application are characterized in that the first electric heating film layer and the second electric heating film layer are arranged circumferentially, and the first electric heating film layer starts heating before the second electric heating film layer; the preheating time of the aerosol forming substrate is shortened, the suction waiting time is reduced, the nozzle scalding caused by the too high aerosol temperature is avoided, and the use experience of a user is improved.
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 are not to scale, unless expressly stated otherwise.
Fig. 1 is a schematic view of an aerosol-generating device provided in an embodiment of the present application;
fig. 2 is an exploded schematic view of an aerosol-generating device provided by an embodiment of the present application;
FIG. 3 is a schematic view of a heating assembly provided in an embodiment of the present application;
FIG. 4 is an exploded schematic view of a heating assembly provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of a heater in a heating assembly provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of another heating assembly provided by an embodiment of the present application;
FIG. 7 is an exploded schematic view of another heating assembly provided by embodiments of the present application;
FIG. 8 is a schematic diagram of a heater in another heating assembly provided in an embodiment of the present application;
fig. 9 is a schematic view of an electrode connection in another heating assembly provided in an embodiment of the present application.
Detailed Description
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 detailed description. It will be understood that when an element is referred to as being "fixed" 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 in this description 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.
Fig. 1-2 illustrate an aerosol-generating device 100 according to an embodiment of the present application, comprising a housing assembly 6 and a heater disposed within the housing assembly 6.
The housing assembly 6 includes a housing 61, a fixing housing 62, a base and a bottom cover 64, wherein the fixing housing 62 and the base are both fixed in the housing 61, the base is used for fixing a base 111, the base is disposed in the fixing housing 62, and the bottom cover 64 is disposed at one end of the housing 61 and covers the housing 61.
Specifically, the base includes a base 15 sleeved at the proximal end of the base 111 and a base 13 sleeved at the distal end of the base 111, the base 15 and the base 13 are both disposed in the fixed shell 62, the bottom cover 64 is provided with an air inlet 641 in a protruding manner, one end of the base 13, which is away from the base 15, is connected with the air inlet 641, the base 15, the base 111, the base 13 and the air inlet 641 are coaxially disposed, the base 111 is sealed with the base 15 and the base 13 by sealing elements, the base 13 is also sealed with the air inlet 641, and the air inlet 641 is communicated with the outside air so as to facilitate smooth air inlet when the user sucks.
The aerosol-generating device 100 further comprises a circuit board 3 and a battery cell 7. The fixed shell 62 includes a front shell 621 and a rear shell 622, the front shell 621 is fixedly connected with the rear shell 622, the circuit board 3 and the battery core 7 are both arranged in the fixed shell 62, the battery core 7 is electrically connected with the circuit board 3, the key 4 is convexly arranged on the shell 61, and by pressing the key 4, the electric heating film layer on the surface of the substrate 111, such as the resistance heating film layer and the infrared electric heating coating, can be electrified or powered off. The circuit board 3 is further connected with a charging interface 31, the charging interface 31 is exposed on the bottom cover 64, and a user can charge or upgrade the aerosol-generating device 100 through the charging interface 31 to ensure continuous use of the aerosol-generating device 100.
The aerosol-generating device 100 further comprises a thermally insulating tube 17, the thermally insulating tube 17 being arranged within the stationary housing 62, the thermally insulating tube 17 being arranged at the periphery of the base body 11, the thermally insulating tube 17 being arranged to avoid a significant heat transfer to the housing 61, which would lead to the user perceiving scalding his hands. The insulating tube comprises an insulating material which may be a heat insulating gel, aerogel blanket, asbestos, aluminum silicate, calcium silicate, diatomaceous earth, zirconia, or the like. The heat insulating pipe 17 may be a vacuum heat insulating pipe. An infrared reflective coating may be further formed in the heat insulating pipe 17 to reflect infrared rays emitted from the infrared electrothermal coating on the substrate 11 back to the substrate 11, thereby improving heating efficiency.
The aerosol-generating device 100 further comprises a temperature sensor 2, such as an NTC thermistor, PTC thermistor or thermocouple, for detecting the real-time temperature of the substrate 11 and transmitting the detected real-time temperature to the circuit board 3, the circuit board 3 adjusting the magnitude of the current flowing through the infrared electrothermal coating according to the real-time temperature.
Fig. 3 to 6 are diagrams showing a heating assembly according to an embodiment of the present application, wherein the heating assembly 10 includes a heater 11, an electrode connection member 12, a temperature sensor 2, and a holder 14. The heater 11 includes:
the base 111 has a chamber formed therein adapted to receive an aerosol-forming substrate.
Specifically, base 111 includes a proximal end and a distal end, and a surface extending between the proximal and distal ends. The base 111 is hollow and formed with a chamber suitable for accommodating an aerosol-forming article. The base 111 may be tubular, such as cylindrical, prismatic, or other cylindrical. The base 111 is preferably cylindrical and the chamber is a cylindrical bore extending through the middle of the base 111, the bore having an inner diameter slightly larger than the outer diameter of the aerosol-forming article, so as to facilitate heating the aerosol-forming article within the chamber. The inner diameter R of the base 111 is between 6mm and 15mm, or between 7mm and 14mm, or between 7mm and 12mm, or between 7mm and 10mm. The axial extension d of the base body 111 is between 15mm and 25mm, or between 16mm and 25mm, or between 18mm and 24mm, or between 18mm and 22mm. The above-mentioned dimensions of the base body 111 are suitable for receiving a short and thick aerosol-generating article.
The substrate 111 may be made of a material that is resistant to high temperature and transmits infrared rays, such as quartz glass, ceramic, or mica, or may be made of other materials having high infrared transmittance, for example: the high temperature resistant material having an infrared transmittance of 95% or more is not particularly limited herein.
An aerosol-forming substrate is a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds may be released by heating the aerosol-forming substrate. The aerosol-forming substrate may be solid or liquid or comprise solid and liquid components. The aerosol-forming substrate may be adsorbed, coated, impregnated or otherwise loaded onto a carrier or support. The aerosol-forming substrate may conveniently be part of an aerosol-generating article.
The aerosol-forming substrate may comprise nicotine. The aerosol-forming substrate may comprise tobacco, for example may comprise a tobacco-containing material comprising volatile tobacco flavour compounds which are released from the aerosol-forming substrate when heated. Preferred aerosol-forming substrates may comprise homogenised tobacco material, such as tobacco lamina. The aerosol-forming substrate may comprise at least one aerosol-forming agent, which may be any suitable known compound or mixture of compounds that, in use, facilitates the formation of a dense and stable aerosol and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating system. Suitable aerosol formers are well known in the art and include, but are not limited to: polyols, such as triethylene glycol, 1, 3-butanediol and glycerol; esters of polyols, such as glycerol mono-, di-or triacetate; and fatty acid esters of mono-, di-or polycarboxylic acids, such as dimethyldodecanedioate and dimethyltetradecanedioate. Preferred aerosol formers are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1, 3-butanediol and most preferably glycerol.
An infrared electrothermal coating 112 is formed on the surface of the substrate 111. The infrared electrothermal coating 112 may be formed on the outer surface of the base 111 or may be formed on the inner surface of the base 111.
In this example, an infrared electrothermal coating 112 is formed on the outer surface of the base 111. The infrared electrothermal coating 112 receives electric power to generate heat, and thus generates infrared rays with a certain wavelength, for example: far infrared rays of 8-15 μm. When the wavelength of the infrared light matches the absorption wavelength of the aerosol-forming substrate, the energy of the infrared light is readily absorbed by the aerosol-forming substrate.
The infrared electrothermal coating 112 is preferably formed by uniformly stirring far infrared electrothermal ink, ceramic powder and inorganic adhesive, coating on the outer surface of the substrate 111, and then drying and curing for a certain time, wherein the thickness of the infrared electrothermal coating 112 is 30-50 μm; of course, the infrared electrothermal coating 112 can also be formed by mixing and stirring tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate according to a certain proportion and then coating the mixture on the outer surface of the substrate 111; or one of a silicon carbide ceramic layer, a carbon fiber composite layer, a zirconium titanium oxide ceramic layer, a zirconium titanium nitride ceramic layer, a zirconium titanium boride ceramic layer, a zirconium titanium carbide ceramic layer, an iron oxide ceramic layer, an iron nitride ceramic layer, an iron boride ceramic layer, an iron carbide ceramic layer, a rare earth oxide ceramic layer, a rare earth nitride ceramic layer, a rare earth boride ceramic layer, a rare earth carbide ceramic layer, a nickel cobalt oxide ceramic layer, a nickel cobalt nitride ceramic layer, a nickel cobalt boride ceramic layer, a nickel cobalt carbide ceramic layer, or a high silicon molecular sieve ceramic layer; infrared electrothermal coating 112 may also be an existing coating of other materials.
The conductive element includes a first electrode 113, a second electrode 114, and a third electrode 115 sequentially arranged on the base 111 at intervals in the circumferential direction of the base 111 for feeding the electric power supplied from the battery cell 7 to the infrared electrothermal coating 112.
The first electrode 113, the second electrode 114, and the third electrode 115 are all in contact with the infrared electrothermal coating 112 to form an electrical connection. The first electrode 113, the second electrode 114, and the third electrode 115 may be conductive coatings, the conductive coatings may be metal coatings, and the metal coatings may include silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or metal alloy materials thereof.
The first electrode 113, the second electrode 114, and the third electrode 115 each extend along the axial direction of the base 111 and have an elongated shape. The axial extension of the first electrode 113, the second electrode 114, and the third electrode 115 are all the same as the axial extension of the infrared electrothermal coating 112. The circumferential extension of the first electrode 113 and the second electrode 114 is smaller than the circumferential extension of the third electrode 115. The circumferential extension length of the first electrode 113 and the second electrode 114 may be 0.2mm to 2mm; preferably between 0.5mm and 2mm; further preferably 1mm to 2mm. The third electrode 115 may have a circumferential extension of 2mm to 5mm; preferably between 2mm and 4mm.
In this way, the first electrode 113, the second electrode 114, and the third electrode 115 divide the infrared electrothermal coating 112 into two infrared electrothermal coatings along the circumferential direction of the base 111, i.e., a first infrared electrothermal coating between the first electrode 113 and the third electrode 115, and a second infrared electrothermal coating between the second electrode 114 and the third electrode 115. In a preferred implementation, the first infrared electrothermal coating has a circumferential extension that is the same as the circumferential extension of the second infrared electrothermal coating, such that the electrical resistance of the first infrared electrothermal coating is the same as the electrical resistance of the second infrared electrothermal coating. In other examples, the circumferential extension of the first infrared electrothermal coating may also be different from the circumferential extension of the second infrared electrothermal coating such that the electrical resistance of the first infrared electrothermal coating is different from the electrical resistance of the second infrared electrothermal coating. Of course, if it is desired to make the resistance of the first ir electrothermal coating different from the resistance of the second ir electrothermal coating, this can be achieved in other ways. For example: according to the calculation formula r=ρl/S of the resistance, when the resistivity ρ is constant, if L is also constant, the corresponding resistance value of S is also larger if S is smaller (s=the axial extension length of the infrared electrothermal coating is equal to the thickness of the infrared electrothermal coating, and the thickness of the infrared electrothermal coating is generally constant); thus, the resistance of the first infrared electrothermal coating layer and the resistance of the second infrared electrothermal coating layer can be made different by the difference of the axial extension lengths of the infrared electrothermal coating layers.
Wherein the first and second ir electrothermal coatings are configured to be independently activatable to independently heat different portions of an aerosol-forming substrate. For example: the first infrared electrothermal coating can be started to heat first, and the second infrared electrothermal coating is started to heat again; or the first infrared electrothermal coating starts heating first, and the first infrared electrothermal coating and the second infrared electrothermal coating start heating simultaneously. In this way, a part of aerosol forming substrate corresponding to the first infrared electrothermal coating is heated first, so that the purposes of shortening the preheating time of the aerosol forming substrate and reducing the suction waiting time can be achieved; compared with the whole aerosol forming matrix, the part of aerosol forming matrix has fewer heated aerosol forming matrixes, and the heated aerosol forming matrix has relatively fewer moisture, so that the problem of nozzle scalding caused by overhigh aerosol temperature is avoided, and the use experience of a user is improved. The heating mode of the first infrared electrothermal coating and the second infrared electrothermal coating distributed along the circumferential direction of the substrate is particularly suitable for aerosol generating products of coarse and short type, so that the preheating time of the products can be shortened, the waiting time of users can be reduced, and the products can be uniformly heated to maintain the consistency and the persistence of suction.
In this example, the infrared electrothermal coating may not be disposed between the first electrode 113 and the second electrode 114, and the distance between the first electrode 113 and the second electrode 114 may be smaller, for example: 0 to 1mm, may be specifically 0.2mm, 0.4mm, 0.5mm, 0.7mm, etc. Alternatively, a third infrared electrothermal coating is disposed between the first electrode 113 and the second electrode 114, the first infrared electrothermal coating, the second infrared electrothermal coating, and the third infrared electrothermal coating being configured to be independently activatable so as to independently heat different portions of the aerosol-forming substrate.
In one example, infrared electrothermal coating 112 may be spaced from the proximal or distal end of substrate 111. For example: in fig. 5, neither part B1 nor part B2 on the outer surface of the substrate 111 is provided with an electrode and an infrared electrothermal coating 112; the axial extension of the B1 and B2 portions may be as small as possible. Generally, the axial extension length of the B1 part and the B2 part is between 0 and 1mm, namely more than 0 and less than or equal to 1mm; in specific examples, it may be 0.2mm, 0.4mm, 0.5mm, 0.7mm, etc.
In one example, it is also possible that the IR electrothermal coating 112 is not spaced from the proximal or distal end of the substrate 111, i.e., the axial extension of the electrode or IR electrothermal coating 112 is the same as the axial extension of the substrate 111. In this way, on the one hand, the application area of the infrared electrothermal coating 112 can be increased and, on the other hand, heat loss can be avoided.
The electrode connection 12 is held in contact with the conductive element to form an electrical connection. The number of electrode connections 12 corresponds to the number of conductive elements, i.e. the first electrode 113 has a corresponding electrode connection 12, the second electrode 114 has a corresponding electrode connection 12, and the third electrode 115 has a corresponding electrode connection 12. The electrode connection 12 may be electrically connected to the cell 7 by wires, for example: one end of the wire is welded on the electrode connecting piece 12, and the other end of the wire is electrically connected with the battery cell 7 (can be electrically connected with the battery cell 7 through the circuit board 3, and can also be directly electrically connected with the battery cell 7). The electrode connecting member 12 is preferably made of copper, copper alloy, aluminum or aluminum alloy material having good electrical conductivity, and the surface is plated with silver or gold to reduce contact resistance and improve the solderability of the material surface.
Like the conductive element, the electrode connection member 12 extends in the axial direction of the base 111 and has a strip shape. The axial extension of the electrode connection 12 may be the same as the axial extension of the conductive element. The circumferential extension of the electrode connection member 12 is the same as that of the corresponding electrode. The thickness of the electrode connecting piece 12 is 0.05 mm-1 mm, and the electrode connecting piece can be made thinner; in particular examples, the thickness of the electrode connection member 12 may be 0.1mm, 0.2mm, 0.4mm, 0.5mm, and so forth. In a preferred implementation, the axial extension of the electrode connection 12 is greater than the axial extension of the conductive element, but less than the sum of the axial extension of the conductive element and the axial extension of the B2 portion; alternatively, the axial extension of electrode connector 12 is greater than the sum of the axial extension of the conductive element and the axial extension of the B2 portion, i.e., the upper end of electrode connector 12 is flush with the upper end of infrared electrothermal coating 112, while the lower end of electrode connector 12 extends beyond the distal end of base 111; in this way, wire bonding to the electrode connection member 12 is facilitated. In a further preferred embodiment, the distance between the lower end of the electrode connection member 12 and the distal end of the base 111 is 1mm to 10mm; preferably between 1mm and 8mm; further preferably between 1mm and 6mm; further preferably 1mm to 4mm.
The outer surface of the base 111 has a mark a of a predetermined position so that a user can assemble the temperature sensor 2 to the predetermined position, i.e., perform positioning, according to the mark a. The mark A can be printed or sprayed to mark the pigment at a preset position. Typically, the mark a is disposed near the center point. In this way, the optimal temperature for controlling the heater 11 can be obtained by the temperature sensor 2.
The holder 14 is used to hold the electrode connector 12 on the first electrode 113, the second electrode 114, or the third electrode 115 to be in contact with the first electrode 113, the second electrode 114, or the third electrode 115 and form an electrical connection, and to hold the temperature sensor 2 on the mark a. The holder 14 comprises a high temperature tape or heat shrink tube; in practical applications, the high temperature adhesive tape may be directly wound on the electrode connection member 12 and the temperature sensor 2; or the heat shrink tube is sleeved outside the electrode connecting piece 12 and the temperature sensor 2, and then the heat shrink tube is contracted and fastened with the electrode connecting piece 12 and the temperature sensor 2 through heating. In a preferred embodiment, the electrode connection member 12 is partially exposed from the holder 14; in this way, wire bonding to the electrode connection member 12 is facilitated.
Fig. 6-9 illustrate another heating assembly provided in accordance with another embodiment of the present application, which, unlike the examples of fig. 3-5,
the conductive member further includes fourth, fifth, and sixth electrodes (not shown in the drawings) extending in the circumferential direction of the base 111, each of which is an arc-shaped electrode. The fourth electrode is connected to the first electrode 113, the fifth electrode is connected to the second electrode 114, and the sixth electrode is connected to the third electrode 115. In practice, the fourth electrode and the first electrode 113, the fifth electrode and the second electrode 114, and the sixth electrode and the third electrode 115 may be integrally formed. The fourth electrode, the fifth electrode and the sixth electrode are all spaced from the infrared electrothermal coating 112, for example, the B2 portion on the outer surface of the substrate 111 may be wider, and the fourth electrode, the fifth electrode and the sixth electrode may be disposed on the B2 portion on the outer surface of the substrate 111, i.e., the fourth electrode, the fifth electrode and the sixth electrode are disposed at the same end of the substrate 111. Of course, the fourth electrode, the fifth electrode, and the sixth electrode may be provided on the B1 portion on the outer surface of the base 111, or the fourth electrode, the fifth electrode, and the sixth electrode may be provided at different ends of the base 111.
In the example of fig. 6-9, the electrode connection 12 includes a contact portion and an extension 123. The contact portion includes a body 121 and one or more cantilevers 122 hollowed out on the body 121, and the cantilevers 122 are distributed at intervals along the circumferential direction of the substrate 111. The cantilever 122 protrudes toward the surface of the base 111, and can generate elastic force when being in contact with the fourth electrode, the fifth electrode, and the sixth electrode, thereby electrically connecting the fourth electrode, the fifth electrode, and the sixth electrode. The extension 123 is used for coupling to a power source, and the extension 123 extends from the body 121 toward a position away from the base 111.
It should be noted that the description and drawings of the present application show preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations on the content of the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope described in the present specification; further, modifications and variations of the present utility model may occur to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be within the scope of the appended claims.
Claims (15)
1. A heating assembly, comprising:
a tubular base;
the electric heating film layer is arranged on the surface of the substrate; the electric heating film layer comprises a first electric heating film layer and a second electric heating film layer which are distributed along the circumferential direction of the matrix; the first electrically heated film layer is configured to initiate heating prior to the second electrically heated film layer;
a conductive element for feeding electric power to the electrically heated film layer;
wherein the inner diameter of the tubular matrix is between 6mm and 15mm.
2. A heating assembly according to claim 1, wherein the tubular substrate has an axial extension of 15mm to 25mm.
3. The heating assembly of claim 1, wherein the conductive element comprises a first electrode, a second electrode, and a third electrode extending in an axial direction of the substrate;
the first electrode, the second electrode and the third electrode are sequentially arranged at intervals along the circumferential direction of the matrix, the first electric heating film layer is arranged between the first electrode and the third electrode, and the second electric heating film layer is arranged between the second electrode and the third electrode.
4. A heating assembly as claimed in claim 3, wherein the first or second electrode has a circumferential extent that is less than the circumferential extent of the third electrode.
5. The heating assembly of claim 4, wherein the first electrode or the second electrode has a circumferential extension of 0.2-2 mm and the third electrode has a circumferential extension of 2-5 mm.
6. A heating assembly according to claim 3, wherein the conductive element further comprises a fourth electrode extending in the circumferential direction of the substrate, the fourth electrode being connected to the first electrode and being spaced apart from the electrically heated film layer; and/or the number of the groups of groups,
the conductive element further includes a fifth electrode extending in a circumferential direction of the base body, the fifth electrode being connected to the second electrode and being spaced apart from the electrically heated film layer; and/or the number of the groups of groups,
the conductive element further includes a sixth electrode extending in a circumferential direction of the base body, the sixth electrode being connected to the third electrode and disposed at intervals from the electrically heated film layer.
7. The heating assembly of claim 6, wherein the fourth electrode, the fifth electrode, and the sixth electrode are disposed at a same end of the substrate.
8. The heating assembly of claim 6, further comprising a first electrode connection;
the first electrode connection member includes a contact portion, at least a portion of which protrudes toward a surface of the base body to be in contact with the fourth electrode, the fifth electrode, or the sixth electrode to form an electrical connection.
9. The heating assembly of claim 8, wherein the first electrode connection further comprises an extension;
the extension portion extends towards a position far away from the base body relative to the contact portion, and the extension portion is used for coupling with a power supply.
10. A heating assembly as claimed in claim 3, further comprising a second electrode connection and a holder;
the second electrode connecting member extends in an axial direction of the base body, and the holder holds the second electrode connecting member on the base body to be in contact with and form an electrical connection with the first electrode, the second electrode, or the third electrode.
11. The heating assembly of claim 1, wherein the electrically heated film layer comprises an infrared electrothermal coating for receiving electrical power to generate heat to generate infrared light.
12. The heating assembly of claim 1, wherein the first electrically heated film layer has a circumferentially extending length that is the same as a circumferentially extending length of the second electrically heated film layer.
13. A heating assembly according to claim 3, wherein no electrically heated film layer is provided between the first electrode and the second electrode; or alternatively, the process may be performed,
a third electrically heated film layer is disposed between the first electrode and the second electrode, the first electrically heated film layer, the second electrically heated film layer, and the third electrically heated film layer being configured to be independently activatable so as to independently heat different portions of the aerosol-forming substrate.
14. The heating assembly of claim 1, further comprising a temperature sensor for sensing temperature, wherein the surface of the substrate is provided with indicia of a predetermined location for locating when the temperature sensor is assembled.
15. An aerosol-generating device, comprising: a housing assembly;
the heating assembly of any one of claims 1-14, disposed within the housing assembly;
and the battery cell is used for providing electric power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222527232.5U CN219182821U (en) | 2022-09-23 | 2022-09-23 | Heating assembly and aerosol-generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527232.5U CN219182821U (en) | 2022-09-23 | 2022-09-23 | Heating assembly and aerosol-generating device |
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| CN219182821U true CN219182821U (en) | 2023-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060982A1 (en) * | 2022-09-22 | 2024-03-28 | 深圳市合元科技有限公司 | Heating assembly and aerosol generating apparatus |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060982A1 (en) * | 2022-09-22 | 2024-03-28 | 深圳市合元科技有限公司 | Heating assembly and aerosol generating apparatus |
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