CN116965597A - Induction heating aerosol generating device - Google Patents
Induction heating aerosol generating device Download PDFInfo
- Publication number
- CN116965597A CN116965597A CN202311136154.9A CN202311136154A CN116965597A CN 116965597 A CN116965597 A CN 116965597A CN 202311136154 A CN202311136154 A CN 202311136154A CN 116965597 A CN116965597 A CN 116965597A
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- CN
- China
- Prior art keywords
- aerosol
- induction heating
- generating
- generating device
- induction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 141
- 230000006698 induction Effects 0.000 title claims abstract description 85
- 239000000443 aerosol Substances 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 9
- 230000005674 electromagnetic induction Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000000391 smoking effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010965 430 stainless steel Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 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
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
-
- 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
Landscapes
- General Induction Heating (AREA)
Abstract
An inductively heated aerosol-generating device is disclosed that is capable of heating an aerosol-generating article by means of induction heating to produce an aerosol for inhalation by a user; the induction heating aerosol-generating device comprises: in use the induction coil generates a fluctuating electromagnetic field to heat an induction heating body in thermal contact with the aerosol-generating article and thereby heat an aerosol-generating substrate of the aerosol-generating article; the bracket is used for fixing the induction coil and the induction heating body; the induction heating element fixing device is characterized in that a heating element limiting device is arranged on the inner side of the support and used for fixing the heating element, and the contact surface of the heating element limiting device and the induction heating element is t which is less than or equal to 0.5cm 2 。
Description
Technical Field
The invention relates to the field of novel tobacco heating, in particular to an induction heating aerosol generating device.
Background
In recent years, along with the increasing attention of people on health, people are aware that traditional cigarettes have certain harm to health, and the problem of the influence of traditional cigarettes on health and environment is gradually paid attention to all countries of the world.
The existing cigarette heating devices in the market mainly use the principle of resistance heating, and the heating modes mainly comprise inner core heating, peripheral heating and internal and external mixed heating. In the smoking set heated by the inner core, the aerosol generating product is convenient to insert, and a needle type heating body is usually used, so that the cross-sectional area of the heating body needs to be smaller, the smoking medium close to the heating body is excessively heated, the smoking medium far away from the heating body is difficult to heat in the heating process of the aerosol generating product, and the aerosol generating product is unevenly heated.
Electromagnetic induction heating is a method of using electromagnetic induction to generate eddy currents in a heated material, and the heating purpose is achieved by means of the energy of the eddy currents. The electromagnetic induction heating process is actually a comprehensive embodiment of an electromagnetic induction process and a heat conduction process, wherein the electromagnetic induction process has a dominant effect. It affects and to some extent determines the heat transfer process. The thermal energy required in the heat transfer process is actually provided by the eddy current power generated in the electromagnetic induction process. Electromagnetic induction heating is used as a non-contact heating mode, and the induction heating body does not need to be electrically connected with a heating control component, so that the degree of freedom of design is large, and the induction heating device is very suitable for being applied to the field of novel tobacco products. Key components in the electromagnetic induction heating principle include an induction emitter with an induction coil and a susceptor as an induction heating body.
However, during the heating process, the heat of the heater is easily diffused to places other than the aerosol-generating article by various conduction means, which affects the efficiency of generating the aerosol, and also easily diffuses the heat to the housing, affecting the consumer's use experience.
Therefore, in order to avoid heat spreading, it is necessary to develop an inductively heated aerosol-generating device.
Disclosure of Invention
The present invention aims to avoid heat diffusion and needs to develop an induction heating aerosol-generating device.
In order to solve the technical problems, the invention adopts the following technical scheme:
an inductively heated aerosol-generating device capable of heating an aerosol-generating article by means of induction heating to produce an aerosol for inhalation by a user; the induction heating aerosol-generating device comprises: a housing defining a heating chamber for receiving at least a portion of the aerosol-generating article; an inductor comprising an induction coil; a power supply connected to the induction coil and configured to provide a high frequency current to the induction coil, in use, generating a fluctuating electromagnetic field to heat an induction heating body in thermal contact with the aerosol-generating article and thereby heat an aerosol-generating substrate of the aerosol-generating article; the bracket is used for fixing the induction coil and the induction heating body; the induction heating element fixing device is characterized in that the support is provided with a heating element limiting device for fixing the heating element, and the contact surface of the heating element limiting device and the induction heating element is t which is less than or equal to 0.5cm 2 。
Further, the induction heating body is an external heating induction heating body.
Further, the surface area of the induction heating body is S, and t is less than or equal to S/20.
Further, the heating element limiting device, the bracket and the induction heating element form one or more airflow channels.
Further, the air heating device also comprises a bracket end cover, wherein the bracket end cover is matched and fixed with the bracket and used for limiting the upper end of the air heating chamber, and the bracket end cover comprises an end cover through hole for the aerosol generating product to pass through.
Further, the bracket end cover is provided with an end cover airflow through hole corresponding to the airflow channel along the edge of the end cover through hole.
Further, the support and the heating element limiting device are integrally formed.
Further, the bracket bottom surface is provided with a bracket air flow channel corresponding to the air flow channel.
Further, the support base is also provided with one or more supports for supporting the aerosol-generating article.
Further, one end of the bracket airflow channel is connected with the airflow channel, and the other end is converged at the center point of the bottom of the bracket.
The aerosol-generating device is used to describe a device that interacts with an aerosol-generating substrate of an aerosol-generating article to generate an aerosol. Preferably, the aerosol-generating device is a smoking device which interacts with an aerosol-generating substrate of the aerosol-generating article to generate an aerosol which is directly inhalable into a user's lungs through a user's mouth. The aerosol-generating device may be a holder for a smoking article.
Susceptors refer to materials that may convert electromagnetic energy into heat. Eddy currents induced in the susceptor when located in a fluctuating electromagnetic field cause heating of the susceptor. When the elongated susceptor is positioned in thermal contact with the aerosol-generating substrate, the aerosol-generating substrate is heated by the susceptor.
The aerosol-generating article is designed to be engaged with an electrically operated aerosol-generating device comprising an inductively heated source. An inductive heating source or inductor generates a fluctuating electromagnetic field to heat a susceptor located within the fluctuating electromagnetic field. In use, the aerosol-generating article is engaged with the aerosol-generating device such that the susceptor is located within the fluctuating electromagnetic field generated by the inductor.
The length dimension of the susceptor is greater than its width dimension or its thickness dimension, for example greater than twice its width dimension or its thickness dimension. The susceptor may thus be described as an elongated susceptor. The susceptor may be arranged substantially longitudinally within the aerosol-generating substrate. This means that the length dimension of the elongated susceptor is arranged approximately parallel to the longitudinal direction of the aerosol-generating substrate, for example within plus or minus 10 degrees of parallel to the longitudinal direction of the aerosol-generating substrate. In a preferred embodiment, the elongated susceptor may be located at a radial central position within the aerosol-generating substrate and extend along the longitudinal axis of the aerosol-generating substrate.
The susceptor is preferably hollow cylindrical or a combination of substantially circumferential in configuration. The susceptor is in thermal contact with an outer surface of the aerosol-generating article. Preferably, the susceptor has a length of between 5mm and 15mm, for example between 6mm and 12mm or between 8mm and 10 mm. Preferably, the elongate susceptor has substantially the same length as the aerosol-generating substrate. Preferably, the susceptor may have a width of between 1mm and 5mm and a thickness of between 0.01mm and 2mm, for example a thickness of 0.5mm to 2 mm. Preferred embodiments may have a thickness of between 10 microns and 500 microns, more preferably between 10 microns and 100 microns. If the susceptor has a constant cross-section, for example a circular cross-section, it has a preferred width or diameter of 1mm to 5 mm.
The susceptor may be made of any material which is capable of being inductively heated to a temperature sufficient for the aerosol-generating substrate to generate an aerosol. Preferred susceptors comprise metal or carbon. Preferred susceptors may include ferromagnetic materials such as ferrite, ferromagnetic steel or stainless steel. Suitable susceptors may be or may include aluminum. Preferred susceptors may be made of 400 series stainless steel, such as grade 410, grade 420 or grade 430 stainless steel. When placed in an electromagnetic field having similar frequency and field strength values, different materials will consume different amounts of energy. Thus, parameters of the susceptor, such as material type, length, width and thickness, can be varied within a known electromagnetic field to provide the desired energy expenditure.
It is possible to heat the preferred sensor to a temperature exceeding 250 degrees celsius. Suitable susceptors may include a nonmetallic core with a metal layer disposed on the nonmetallic core, such as a metal trace formed on a surface of a ceramic core.
The susceptor may have an outer protective layer, such as a ceramic or glass protective layer that encapsulates the elongated susceptor, thereby forming a complete heating body. The susceptor may include a protective coating formed of glass, ceramic, or an inert metal formed on a core of susceptor material.
The susceptor is arranged in thermal contact with the aerosol-generating substrate. Thus, when the susceptor is heated, the aerosol-generating substrate is heated and an aerosol is formed. In one embodiment, a heating body comprising a susceptor is inserted into the aerosol-generating substrate, and the aerosol-generating device may comprise a single or a plurality of elongated heating bodies. In another embodiment, the aerosol-generating substrate may comprise a susceptor, alternatively the aerosol-generating substrate may comprise a plurality of susceptors, the susceptor may be in the form of an elongate shape, a particle shape, a mesh shape, a radiation shape, a tube shape, an hourglass shape, a spiral shape, etc.
The induction coil material is selected from materials with good conductive effect such as metal and the like; in addition, in this patent, the induction coil material should also have good elastic deformability, and spring steel, gold, silver, and other metals can be used.
The power source may be any suitable power source, for example a dc voltage source, such as a battery. In one embodiment, the power source is a lithium ion battery. Alternatively, the power source may be a nickel metal hydride battery, a nickel cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.
The control element may be a simple switch. Alternatively, the control element may be a circuit and may include one or more microprocessors or microcontrollers.
The aerosol-generating system may comprise an aerosol-generating device configured to receive the aerosol-generating article in a corresponding number of heating chambers, and one or more aerosol-generating articles.
The invention provides a novel induction heating aerosol generating device, which has the following technical effects:
1. the contact area of the traditional support and the heating element is greatly reduced, and the heat transfer of the heating element outside through the support is facilitated to be isolated.
2. The support reduces the gap formed after the contact area with the heating element to form an air flow channel, and cold air enters from the outside and then enters the induction heating element through the air flow channel, so that the air can be preheated in advance, and the efficiency is improved; meanwhile, the cold air also plays a role in cooling the bracket.
3. The bottom and the side of the bracket are integrally formed, and due to the non-contact characteristic of electromagnetic heating, the heating element can be heated without additional electric connection, the heating assembly and the electric control part of the appliance are completely isolated, and residues generated in the use process cannot fall into the machine, so that a circuit is protected.
4. The air flow passage structure on the bracket end cover is directly communicated with the outside, and the generated residues can be directly shaken off through the air flow passage structure, so that the cleaning and the maintenance of the heating assembly are facilitated.
Drawings
The foregoing aspects of the invention and the following detailed description will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are only examples of the claimed technical solutions. In the drawings, like reference numbers indicate identical or similar elements.
FIG. 1 is a cross-sectional view of a heating chamber according to an embodiment of the invention;
FIG. 2 is a perspective view of a stand according to an embodiment of the present invention;
FIG. 3 is a perspective view of a bracket and an induction heating unit according to an embodiment of the present invention;
FIG. 4 is a perspective view of a bracket end cap according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a heating chamber of an embodiment of the invention inserted into an aerosol-generating article.
Wherein reference numerals are as follows:
1. aerosol-generating article
2. Induction coil
3. Support frame
301. Heating element limiting device
302. Bracket airflow channel
303. Support member
304. Bracket fixing piece
4. Induction heating element
5. Bracket end cover
501. End cover through hole
502. End cover airflow through hole
503. End cover fixing piece
6. Air flow channel
Detailed Description
The detailed features and advantages of the present invention will be readily apparent to those skilled in the art from that description, claims, and drawings.
It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present patent.
For the purpose of making the objects, technical solutions and advantages of the present patent more apparent, the embodiments of the present patent will be described in further detail below with reference to the accompanying drawings.
The present invention discloses an inductively heated aerosol-generating device capable of heating an aerosol-generating article 1 by means of induction heating to produce an aerosol for inhalation by a user. The aerosol-generating device comprises a housing (not shown), a power source (not shown), a heating chamber. The temperature control mode can use a power control method or a relation correspondence method between coil current and temperature, and the two methods are completely controlled without physical electric connection; the method can also adopt a mode of physical and electrical connection of the temperature sensor, only an electrical connection path necessary for the sensor is reserved, and compared with a resistance heating mode, the method needs power electrical connection, so that the risk of leakage is reduced.
A housing defining a heating chamber for receiving at least a portion of the aerosol-generating article. The housing is also for holding by a user.
A power supply connected to the induction coil and configured to supply a high frequency current to the induction coil.
As shown in fig. 1, a heating chamber in an embodiment of an inductively heated aerosol-generating device is disclosed for receiving and heating an aerosol-generating article. It comprises an inductor, a bracket 3, an induction heating body 4 and a bracket end cover 5.
The inductor comprises an induction coil 2. The induction coil 2 generates in use a fluctuating electromagnetic field to heat an induction heating body 4 in thermal contact with the aerosol-generating article 1 and thereby heat the aerosol-generating substrate of the aerosol-generating article 1.
The bracket 3 is used for fixing the induction coil 2 and the induction heating body 4. The induction coil 2 is wound around the outer peripheral surface of the holder 3 so as to substantially cover the heat-generating body feeling region in the axial direction.
The induction heating unit 4 is an externally heated induction heating unit, i.e. in thermal contact with the outer surface of the aerosol-generating article 1. The induction heating body is hollow cylinder or whole circumference arrangement shape. The induction heating element 4 is fixed between the bracket 3 and the bracket end cover 5.
The bracket 3 and the bracket end cover 5 are fixed in a matched manner through the bracket fixing piece 304 and the end cover fixing piece 503, define a heating chamber and fix the induction heating body 4 inside the heating chamber. Specifically, the bracket fixing member 304 and the end cover fixing member 503 may be ribs, buckles, threads, or the like that are matched with each other. Preferably, the end cover fixing member 503 is matched with the induction heating body 4 to uniformly divide the air flow channel.
As shown in fig. 2, the holder 3 is provided with a heating element limiter 301 for limiting the induction heating element 4. The heating element limiting device 301 may support the induction heating element 4 in the inner direction at the outer ring thereof, support the induction heating element 4 in the outer direction at the inner ring thereof, hold the induction heating element 4 at the bottom, or the like. The contact surface of the heating element limiting device 301 and the induction heating element 4 is t, and t is less than or equal to 0.5cm 2 . The surface area of the induction heating element 4 is S. t is less than or equal to S/20. Preferably, t.ltoreq.S/40. Preferably, t.ltoreq.S/50. The support 3 is contacted with the induction heating body 4 only through a small amount of contact surfaces, so that the condition that heat is emitted to the outside through the support is greatly reduced.
The bracket 3 and the heating element limiting device 301 are integrally formed. Because of the non-contact characteristic of electromagnetic heating, the heating element can be heated without extra electric connection, the heating component and the electric control part of the appliance are completely isolated, residues generated in the using process can not fall into the machine, and a circuit is protected.
The bottom surface of the holder 3 is provided with a holder air flow passage 302 corresponding to the air flow passage 6. Preferably, the rack air flow channel 302 is a groove. Preferably, the airflow channel 302 of the holder is connected to the airflow channel 6 at one end, and the airflow is converged at a central point of the bottom of the holder 3, and enters the inside of the aerosol-generating article 1.
The bottom of the holder 3 may also be provided with one or more supports for supporting the aerosol-generating article 1.
Preferably, a groove for accommodating the end cap fixing member 503 is provided around the bracket fixing member 304, thereby achieving a better fixing effect.
As shown in fig. 3, when the induction heating element 4 is fixed in the bracket 3, due to the existence of the heating element limiting device 301, a cavity is left between the inner side wall of the bracket 3 and the outer wall of the induction heating element 4, so that one or more air flow channels 6 are formed. The rack air flow path 302 is connected to the air flow path 6.
As shown in fig. 4, the holder end cap 5 is centrally provided with an end cap through hole 501 through which the aerosol-generating article 1 passes. An end cap airflow through hole 502 corresponding to the airflow passage 6 is provided along an edge of the end cap through hole 501.
As shown in fig. 5, the aerosol-generating article 1 fills the interior space of the induction heating body 4 after being inserted into the heating chamber through the end cap through hole 501. During suction, air flows from the end cover air flow through holes 502 of the end cover 5 of the bracket into the cavities in the bracket 3 and the sensing heating body 4, flows through the bracket air flow channel 302 at the bottom of the bracket 3 to the bottom of the aerosol-generating product 1, and then flows from the bottom of the aerosol-generating product 1 to carry out smoke. The air flow can isolate the heating body from heat transfer outwards through the support, and can also receive the preheating of the heating body, so that the heating efficiency is improved. Meanwhile, the cold air also plays a role in cooling the bracket.
The terms and expressions which have been employed herein are used as terms of description and not of limitation. The use of these terms and expressions is not meant to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications are possible and are intended to be included within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.
Also, it should be noted that while the present invention has been described with reference to the particular embodiments presently, it will be appreciated by those skilled in the art that the above embodiments are provided for illustration only and that various equivalent changes or substitutions may be made without departing from the spirit of the invention, and therefore, the changes and modifications to the above embodiments shall fall within the scope of the claims of the present invention as long as they are within the true spirit of the invention.
Claims (10)
1. An inductively heated aerosol-generating device capable of heating an aerosol-generating article by means of induction heating to produce an aerosol for inhalation by a user; the induction heating aerosol-generating device comprises:
a housing defining a heating chamber for receiving at least a portion of the aerosol-generating article;
an inductor comprising an induction coil;
a power supply connected to the induction coil and configured to provide a high frequency current to the induction coil, in use, generating a fluctuating electromagnetic field to heat an induction heating body in thermal contact with the aerosol-generating article and thereby heat an aerosol-generating substrate of the aerosol-generating article;
the bracket is used for fixing the induction coil and the induction heating body;
characterized in that the bracketA heating element limiting device is arranged for fixing the heating element, and the contact surface of the heating element limiting device and the induction heating element is t which is less than or equal to 0.5cm 2 。
2. An induction heating aerosol-generating device according to claim 1, wherein the induction heating element is an externally heated induction heating element.
3. An induction heating aerosol-generating device according to claim 1, wherein the induction heating element has a surface area S, t being equal to or less than S/20.
4. An induction heating aerosol-generating device according to claim 1, wherein the heater fixture, the heater fixture and the heater form one or more airflow channels.
5. An induction heating aerosol-generating device according to claim 4, further comprising a holder end cap cooperatively secured to the holder for defining the upper end of the air heating chamber, the holder end cap comprising an end cap through-hole for the passage of the aerosol-generating article.
6. An induction heating aerosol-generating device according to claim 5, wherein the holder end cap is provided with end cap airflow through holes along the end cap through hole edges corresponding to the airflow channels.
7. An induction heating aerosol-generating device according to claim 1, wherein the support is integrally formed with the heat-generating body spacing means.
8. An induction heating aerosol-generating device according to claim 4, wherein the support bottom surface is provided with support airflow channels corresponding to the airflow channels.
9. An induction heating aerosol-generating device according to claim 1, wherein the support base is further provided with one or more supports for supporting the aerosol-generating article.
10. An induction heating aerosol-generating device according to claim 4, wherein the airflow channel of the holder is connected to the airflow channel at one end and converges at a central point of the bottom of the holder at one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311136154.9A CN116965597A (en) | 2023-09-04 | 2023-09-04 | Induction heating aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311136154.9A CN116965597A (en) | 2023-09-04 | 2023-09-04 | Induction heating aerosol generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116965597A true CN116965597A (en) | 2023-10-31 |
Family
ID=88481664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311136154.9A Pending CN116965597A (en) | 2023-09-04 | 2023-09-04 | Induction heating aerosol generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116965597A (en) |
-
2023
- 2023-09-04 CN CN202311136154.9A patent/CN116965597A/en active Pending
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