Infrared airflow heating mechanism and aerosol generating device

Abstract

The utility model discloses an infrared airflow heating mechanism and an aerosol generating device, the device comprises a shell, a battery and a containing cavity are arranged in the shell, a heating mechanism is arranged at one end, close to the battery, in the containing cavity, the heating mechanism is an infrared airflow heating mechanism, the infrared airflow heating mechanism comprises a tube body, the tube body is a cylindrical tube body, and the tube body is a cylindrical tube body. The inner wall of the pipe body is coated with an infrared heating coating, the two ends of the infrared heating coating are connected with wires, and a porous air guide element is arranged in the pipe body. The infrared heating coating is used for generating heat radiation to heat flowing air, then the hot air is used for heating the cigarette, and compared with other heating modes, airflow heating is even in heating, does not need to be cleaned and is environmentally friendly.

Description

Technical Field

[0001] The utility model relates to an infrared heated aerosol generating device, in particular to an infrared airflow heating mechanism and an aerosol generating device. Background Art

[0002] At present, most aerosol generating devices on the market use electric heating to heat the aerosol generating matrix, and electric heating methods can be divided into induction heating, infrared heating, airflow heating and resistance heating, etc. Among them, resistance heating is usually applied in two ways: central resistance heating and circumferential resistance heating. Central resistance heating is to insert the heating element into the aerosol generating matrix, and the heat transfer is from the inside to the outside, and the temperature distribution is also from high to low, but there are problems such as easy breakage of the heating element, difficulty in cleaning, and uneven heating; Circumferential resistance heating is to arrange the heating element on the periphery of the aerosol generating matrix, and the heat transfer is from the outside to the inside, and the temperature distribution is also from high to low, and there are also problems such as difficulty in cleaning and odor.

[0003] In order to solve the above pain points, heating methods such as induction heating, infrared heating and airflow heating have begun to emerge. Currently, Philip Morris International IQOS ILUMA has successfully applied electromagnetic induction heating to heating elements, but there are environmental issues due to the need to put metal materials in the aerosol generating matrix. Infrared heating is an efficient and clean heating method, but there is no mature aerosol generating product that uses this technology. Utility Model Content

[0004] The purpose of the utility model is to provide an infrared airflow heating mechanism to solve the technical problems in the prior art. It utilizes an infrared heating coating to generate thermal radiation to heat the flowing air, and then allows the hot air to heat the cigarette. Compared with other heating methods, airflow heating not only heats evenly, but also does not require cleaning and is green and environmentally friendly.

[0005] The utility model provides an infrared airflow heating mechanism, comprising a tube body, wherein the tube body is a cylindrical tube body, the inner wall of the tube body is coated with an infrared heating coating, both ends of the infrared heating coating are connected with wires, and a porous air guide element is arranged in the tube body.

[0006] In the aforementioned infrared airflow heating mechanism, preferably, the tube wall of the tube body is a solid structure, and the material of the tube body is a high-temperature resistant thermal insulation material.

[0007] In the aforementioned infrared airflow heating mechanism, preferably, the material of the tube body is stainless steel or tungsten-molybdenum alloy.

[0008] In the aforementioned infrared airflow heating mechanism, preferably, the tube body is a double-layer structure, and a sandwich layer is formed between the inner tube wall and the outer tube wall of the tube body.

[0009] In the aforementioned infrared airflow heating mechanism, preferably, both ends of the inner tube wall and the outer tube wall are closed structures, and the interlayer is a vacuum interlayer.

[0010] In the aforementioned infrared airflow heating mechanism, preferably, the interlayer is filled with thermal insulation material.

[0011] In the aforementioned infrared airflow heating mechanism, preferably, the porous air-conducting element is a cylindrical structure, and a plurality of vent holes arranged along the axial direction are formed in the porous air-conducting element.

[0012] An aerosol generating device comprises a shell, a battery and a accommodating cavity are arranged in the shell, a heating mechanism is arranged in the accommodating cavity at one end close to the battery, the heating mechanism is the aforementioned infrared airflow heating mechanism, and the wires of the infrared airflow heating mechanism are electrically connected to the positive and negative electrodes of the battery.

[0013] Compared with the prior art, the utility model provides an infrared airflow heating mechanism and an aerosol generating device, the device includes a shell, a battery and a receiving cavity are arranged in the shell, a heating mechanism is arranged at one end of the receiving cavity close to the battery, the heating mechanism is an infrared airflow heating mechanism, the infrared airflow heating mechanism includes a tube body, the tube body is a cylindrical tube body, the inner wall of the tube body is coated with an infrared heating coating, both ends of the infrared heating coating are connected to wires, and a porous air guide element is arranged in the tube body. The utility model supplies power to the infrared heating coating through a battery, so that the infrared heating coating generates thermal radiation to heat the air flowing in the porous air guide element, and then the hot air is used to uniformly heat the aerosol generating matrix in the heat-not-burn cigarette to generate aerosol. Compared with the prior art, the heating efficiency is higher, the speed is faster, and it is easier to control, and the hot air flow heats the aerosol generating product more uniformly, and no cleaning is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an infrared airflow heating mechanism;

[0015] Figure 2 It is a schematic diagram of the structure of an aerosol generating device.

[0016] Explanation of the reference numerals: outer shell 1, battery 2, porous air-conducting element 3, tube body 4, interlayer 5, inner tube wall 6, outer tube wall 7, heat-not-burn cigarette 8, wire 9, infrared heating coating 10, accommodating cavity 11, vent hole 12. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0018] Embodiment 1 of the present utility model: Figure 1 As shown, an infrared airflow heating mechanism includes a tube body 4, which is a cylindrical tube body. The inner wall of the tube body 4 is coated with an infrared heating coating 10, both ends of the infrared heating coating 10 are connected to wires 9, and a porous air guide element 3 is provided in the tube body 4.

[0019] By coating an infrared heating coating 10 inside the tube body 4, when the infrared heating coating 10 is energized, it will generate thermal radiation. The thermal radiation heats the air flowing through the porous air-conducting element 3, so that the air at normal temperature quickly turns into high-temperature gas. The high-temperature gas uniformly heats the aerosol-generating matrix in the heat-not-burn cigarette 8 to generate aerosol.

[0020] Specifically, the tube wall of the tube body 4 is a solid structure, and the material of the tube body 4 is a high-temperature resistant heat-insulating material, such as stainless steel or tungsten-molybdenum alloy.

[0021] Furthermore, the porous air-conducting element 3 is a cylindrical structure, and a plurality of air vents 12 arranged along the axial direction are formed in the porous air-conducting element 3 .

[0022] Embodiment 2 of the present utility model: Figure 1 As shown, the difference between this embodiment and embodiment 1 is that the tube wall structure of the tube body 4 is different. In this embodiment, the tube body 4 is a double-layer structure, and an interlayer 5 is formed between the inner tube wall 6 and the outer tube wall 7 of the tube body 4. Both ends of the inner tube wall 6 and the outer tube wall 7 are closed structures, and the interlayer 5 is a vacuum interlayer.

[0023] The vacuum interlayer 5 can effectively provide heat insulation and prevent the heat generated by the infrared heating coating 10 from being lost to the outside.

[0024] Embodiment 3 of the present utility model: Figure 1 As shown, the difference between this embodiment and embodiment 1 is that the tube wall structure of the tube body 4 is different. In this embodiment, the tube body 4 is a double-layer structure, and an interlayer 5 is formed between the inner tube wall 6 and the outer tube wall 7 of the tube body 4. The interlayer 5 is filled with thermal insulation materials, such as soft thermal insulation materials such as nano aerogel, filament fiber and aluminum silicate fiber felt, hard thermal insulation materials such as microporous calcium silicate, outer thermal insulation materials such as polyurethane, or RLHY-12 high temperature resistant thermal insulation coating.

[0025] Embodiment 4 of the present utility model: an aerosol generating device, such as Figure 2As shown, it includes a shell 1, in which a battery 2 and a accommodating cavity 11 are arranged, and a heating mechanism is arranged at one end of the accommodating cavity 11 close to the battery 2. The heating mechanism adopts any one of the infrared airflow heating mechanisms in Examples 1-3, and the wire 9 of the infrared airflow heating mechanism is electrically connected to the positive and negative electrodes of the battery 2.

[0026] The working principle of the utility model is as follows: when in use, the heat-not-burn cigarette 8 is inserted into the accommodating cavity 11 of the shell 1. When in use, the switch is turned on, and the battery 2 supplies power to the infrared heating coating 10. The infrared heating coating 10 generates thermal radiation to heat the air flowing in the porous air-conducting element 3. The heated high-temperature air uniformly heats the aerosol-generating matrix in the heat-not-burn cigarette 8 to generate aerosol.

[0027] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. An infrared airflow heating mechanism, comprising a tube body (4), characterized in that: The tube body (4) is a cylindrical tube body, the inner wall of the tube body (4) is coated with an infrared heating coating (10), both ends of the infrared heating coating (10) are connected to wires (9), and a porous air guide element (3) is provided in the tube body (4).

2. The infrared airflow heating mechanism according to claim 1, characterized in that: The tube wall of the tube body (4) is a solid structure, and the material of the tube body (4) is a high-temperature resistant thermal insulation material.

3. The infrared airflow heating mechanism according to claim 2, characterized in that: The material of the tube body (4) is stainless steel or tungsten-molybdenum alloy.

4. The infrared airflow heating mechanism according to claim 1, characterized in that: The tube body (4) is a double-layer structure, with an interlayer (5) formed between the inner tube wall (6) and the outer tube wall (7) of the tube body (4).

5. The infrared airflow heating mechanism according to claim 4, characterized in that: The inner tube wall (6) and the outer tube wall (7) have closed structures at both ends, and the interlayer (5) is a vacuum interlayer.

6. The infrared airflow heating mechanism according to claim 4, characterized in that: The interlayer (5) is filled with thermal insulation material.

7. The infrared airflow heating mechanism according to claim 1, characterized in that: The porous air-conducting element (3) is a cylindrical structure, and a plurality of air vents (12) arranged along the axial direction are formed in the porous air-conducting element (3).

8. An aerosol generating device, comprising a housing (1), characterized in that: A battery (2) and a receiving cavity (11) are arranged in the housing (1); a heating mechanism is arranged at one end of the receiving cavity (11) close to the battery (2); the heating mechanism is the infrared airflow heating mechanism according to any one of claims 1 to 7; and a wire (9) of the infrared airflow heating mechanism is electrically connected to the positive and negative electrodes of the battery (2).

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