Patent Application
20230371596
This application claims priority to Chinese Patent Application No. 202022084145.8, filed with the China National Intellectual Property Administration on Sep. 22, 2020 and entitled “AEROSOL GENERATION DEVICE AND INFRARED HEATER”, which is incorporated herein by reference in its entirety.
Embodiments of this application relate to the field of cigarette device technologies, and in particular, to an aerosol generation device and an infrared heater.
During use of smoking objects such as a cigarette or cigar, tobaccos are burnt to generate vapor. A product that releases compounds without burning has been tried to provide an alternative for the objects that burn tobaccos. An example of the products is a heat-not-burn product, which releases compounds by heating tobaccos rather than burning tobaccos.
In an existing heat-not-burn cigarette device, a resistive heating body is mainly used, and heat generated by the resistive heating body heats a cigarette in a transfer manner. Problems existing in the cigarette device are as follows: Cut tobacco in direct contact with the resistive heating body is at a high temperature, and is easily over-baked; while cut tobacco away from the resistive heating body is at a relatively low temperature, and is not baked fully. As a result, fragrance of the cigarette is not released fully, and inhalation taste is relatively poor.
This application provides an aerosol generation device and an infrared heater, aiming to resolve problems existing in an existing cigarette device that fragrance of a cigarette is not released fully and inhalation taste is relatively poor because there is a relatively large temperature gradient between the inside and the outside of the cigarette during heating of the cigarette.
An aspect of this application provides an aerosol generation device, configured to heat an aerosol forming substrate to generate an aerosol for inhalation, and including:
Another aspect of this application provides an infrared heater for an aerosol generation device, where the infrared heater includes a plurality of carbon material heating tubes; and the plurality of carbon material heating tubes are constructed to heat an aerosol forming substrate at least in an infrared radiation manner.
In the aerosol generation device and the infrared heater provided in this application, a plurality of carbon material heating tubes heat an aerosol forming substrate received in a chamber in an infrared radiation manner. Because infrared has a strong penetrability, temperatures inside and outside a cigarette may be distributed more evenly, a heating speed is higher, and fragrance is released more fully, thereby improving inhaling experience of a user.
One or more embodiments are described by way of example with reference to the corresponding figures in the accompanying drawings, and the exemplary descriptions are not to be construed as limiting the embodiments. Elements/modules and steps in the accompanying drawings that have same reference numerals are represented as similar elements/modules and steps, and unless otherwise particularly stated, the figures in the accompanying drawings are not drawn to scale.
For ease of understanding of this application, this application is described below in more detail with reference to accompanying drawings and specific implementations. It should be noted that, when an element is expressed as “being fixed to” another element, the element may be directly on the another element, or one or more intermediate elements may exist between the element and the another element. When an element is expressed as “being connected to” another element, the element may be directly connected to the another element, or one or more intermediate elements may exist between the element and the another element. The terms “upper”, “lower”, “left”, “right”, “inner”, “outer”, and similar expressions used in this specification are merely used for an illustrative purpose.
Unless otherwise defined, meanings of all technical and scientific terms used in this specification are the same as those usually understood by a person skilled in art of this application. Terms used in this specification of this application are merely intended to describe objectives of the specific implementations, and are not intended to limit this application. The term “and/or” used in this specification includes any or all combinations of one or more related listed items.
A chamber 11 is configured to receive an aerosol forming substrate 20, for example, a cigarette.
The aerosol-forming substrate is a substrate that can release a volatile compound that can form an aerosol. The volatile compound can be released by heating the aerosol-forming substrate. The aerosol-forming substrate may be solid, or liquid, or components including solid and liquid. The aerosol-forming substrate may be loaded onto a carrier or support through adsorbing, coating, impregnating, or in other manners. The aerosol-forming substrate may conveniently be a part of the aerosol-forming article.
The aerosol-forming substrate may include nicotine. The aerosol-forming substrate may include tobacco, for example, a tobacco-containing material including a volatile tobacco aroma compound. The volatile tobacco aroma compound is released from the aerosol-forming substrate when heated. Preferably, the aerosol-forming substrate may include a homogeneous tobacco material. The aerosol-forming substrate may include at least one aerosol-forming agent, and the aerosol-forming agent may be any suitable known compound or a mixture of compounds. During use, the compound or the mixture of compounds facilitates condensing and stabilizing formation of the aerosol and is substantially resistant to thermal degradation at an operating temperature of an aerosol-forming system. Suitable aerosol-forming agents are well known in the related art and include, but are not limited to: polyol, such as triethylene glycol, 1,3-butanediol, and glycerol; ester of polyol, such as glycerol mono-, di- or triacetate; and fatty acid ester of mono-, di- or polycarboxylic acid, such as dimethyl dodecanedioate and dimethyl tetradecanedioate. Preferably, the aerosol forming agent is polyhydric ester or a mixture thereof, such as triethylene glycol, 1,3-butanediol, or most preferably, glycerol.
The infrared heater 12 includes a plurality of carbon material heating tubes; and the plurality of carbon material heating tubes are constructed to heat the aerosol forming substrate received in the chamber 11 at least in an infrared radiation manner.
A battery cell 13 provides power used for operating the aerosol generation device 10. For example, the battery cell 13 may provide power to heat the infrared heater 12. Moreover, the battery cell 13 may provide power required for operating other elements provided in the aerosol generation device 10.
The battery cell 13 may be a rechargeable battery or a disposable battery. The battery cell 13 may be, but is not limited to, a lithium iron phosphate (LiFePO4) battery. For example, the battery cell 13 may be a lithium cobaltate (LiCoO2) battery or a lithium titanate battery.
A circuit 14 may control an overall operation of the aerosol generation device 10. The circuit 14 not only controls operations of the battery cell 13 and the infrared heater 12, but also controls operations of other elements in the aerosol generation device 10. For example, the circuit 14 obtains information about a temperature of the infrared heater 12 sensed by a temperature sensor 123, and controls, according to the information, power provided by the battery cell 13 to the infrared heater 12.
As shown in
As shown in
The carbon material may be made of a derivative and a compound having carbon as some or all component elements and including, but not limited to, one or more of carbon nanotube, graphene, and carbon fiber. In this example, the carbon material heating wire 124 may be formed by twisting one or more carbon fiber wires.
In this example, the plurality of carbon material heating tubes formed by the plurality of hollow tubes 121 and the plurality of carbon material heating wires 124 are constructed to dependently start. Specifically, one end of each of the plurality of carbon material heating wires 124 is coupled to a power supply (for example, an anode) through the electrode connection member 122, and another end is coupled to the power supply (for example, a cathode) through the electrode connection member 123. The electrode connection member 122 and the electrode connection member 123 may be each made of metal or alloy with a low resistivity, such as silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or an alloy material of the foregoing metals.
As shown in
Different from the foregoing example, in another example, after each hollow tube 121 accommodates at least one carbon material heating wire 124 through the through-hole, two ends of the carbon material heating wire 124 may each maintain an electrical connection through an electrical connection member, that is, 2N electrical connection members are configured for N hollow tubes 121. When being coupled to the battery cell 13, the plurality of carbon material heating tubes formed in this way may be constructed to dependently start, and may alternatively be constructed to independently start. Further, two ends of each hollow tube 121 may be each sealed through a sealing member, an electrical connection member is electrically connected to the carbon material heating wire 124 through the sealing member, and each hollow tube 121 is filled with an inert gas and/or vacuumized, to avoid oxidization of the carbon material heating wire 124.
Referring to
each hollow tube 121 accommodates a part of the carbon material heating wire 124, to form one of a plurality of carbon material heating tubes; and
the fixing base 125 has a structure similar to that of the electrode connection member 122 in
The electrode connection member 122 is electrically connected to one end of the carbon material heating wire 124, and the electrode connection member 123 is electrically connected to another end of the carbon material heating wire 124. Specifically, the electrode connection member 122 and one end of the carbon material heating wire 124 may be twined closely together and then tied tightly, for example, tied tightly with a molybdenum wire; and the electrode connection member 123 and another end of the carbon material heating wire 124 are in a similar case.
It should be noted that, the foregoing embodiment is described with only one infrared heater 12 as an example. In another example, the aerosol generation device 10 may include a first infrared heater and a second infrared heater, and the first infrared heater and the second infrared heater are constructed to independently start to implement segmented heating.
For structures of the first infrared heater and the second infrared heater, reference may be made to the foregoing content. Details are not described herein. The first infrared heater and the second infrared heater may be arranged in an axial direction of a chamber 11, to heat different parts in an axial direction of an aerosol forming substrate, and then implement segmented heating; and may alternatively be arranged in a circumferential direction of the chamber 11, to heat different parts in the circumferential direction of the aerosol forming substrate, and then implement segmented heating.
It should be further noted that, in another example, it is also possible that the plurality of carbon material heating tubes are constructed to be insertable into the aerosol forming substrate received in the chamber.
It should be noted that, this specification of this application and the accompanying drawings thereof illustrate preferred embodiments of this application. However, this application can be implemented in various different forms, and is not limited to the embodiments described in this specification. These embodiments are not intended to be an additional limitation on the content of this application, and are described for the purpose of providing a more thorough and comprehensive understanding of the content disclosed in this application. Moreover, the foregoing technical features are further combined to form various embodiments not listed above, and all such embodiments shall be construed as falling within the scope of this application. Further, a person of ordinary skill in the art may make improvements or variations according to the above descriptions, and such improvements and variations shall all fall within the protection scope of the appended claims of this application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202022084145.8 | Sep 2020 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2021/119649 | 9/22/2021 | WO |
