Double-cavity sectional type heating non-combustion device

Abstract

The utility model discloses a double-cavity sectional type heating non-combustion device which comprises an equipment body, a first heating cavity, a second heating cavity and an electromagnetic induction coil, the electromagnetic induction coil is used for receiving a cigarette inserted with a magnetic conductive element, and the magnetic conductive element is detachably arranged in a tobacco section of the cigarette; a resistance-type heating device is arranged in the second heating cavity, and the heating surface of the resistance-type heating device and the outer surface of the cigarette form a non-contact heating space; the cigarette inserted with the magnetic conductive element is placed in the first heating cavity, and the magnetic conductive element generates eddy current through electromagnetic induction heating so as to heat the interior of the cigarette; and after the cigarette with the heated interior is taken out and the magnetic conductive element is removed, the cigarette is transferred to the second heating cavity, and the exterior of the cigarette is secondarily heated through hot airflow generated by the resistance-type heating device. According to the double-cavity sectional type heating non-combustion device, the electromagnetic induction coil is firstly used for heating the interior of the cigarette inserted with the magnetic conductive element, then the resistance type heating device is used for generating hot air flow to conduct secondary heating on the exterior of the cigarette, and uniform heating of the cigarette from inside to outside is achieved.

Description

Technical Field

[0001] This utility model particularly relates to a dual-cavity segmented heating non-combustion device. Background Technology

[0002] Heated tobacco products (HnB) have garnered widespread attention from the tobacco industry and consumers as a new type of tobacco consumer product. HnB technology heats tobacco to a temperature sufficient to release nicotine and other components without causing combustion, thus producing an inhalable aerosol. Compared to traditional cigarettes, this significantly reduces the release of harmful components and minimizes harm to human health.

[0003] However, in applications involving heating traditional cigarettes, resistance heating technology still faces many challenges that urgently need to be addressed. Existing resistance-heated heat exchangers typically use a cylindrical heating element to enclose the cigarette, a method with significant drawbacks:

[0004] Uneven heating: The outer layer of tobacco is prone to overheating due to direct contact with the heating element, and may even carbonize, while the inner layer of tobacco is difficult to obtain sufficient heat, resulting in insufficient heating. This affects the full release of the effective components in the tobacco and the quality of the aerosol, and makes it impossible to achieve uniform heating of the entire cigarette, thus affecting the consumer's smoking experience.

[0005] The taste and quality of tobacco are affected: carbonization of the tobacco area in contact with the heating element not only changes the original flavor of the tobacco, but also produces some unpleasant odors, resulting in an unpleasant burnt taste when smoking, reducing the taste and quality of the tobacco, and causing discomfort to consumers during the smoking process. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a dual-cavity segmented heating non-combustible device.

[0007] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0008] A dual-cavity segmented heated non-combustible device includes a main body with two independent heating cavities inside. An electromagnetic induction coil is installed in the first heating cavity to receive a cigarette with a magnetically conductive element inserted into it. The magnetically conductive element is detachably installed within the tobacco segment of the cigarette. A resistance heating device is installed in the second heating cavity, with its heating surface forming a non-contact heating space with the outer surface of the cigarette. The cigarette with the magnetically conductive element is placed in the first heating cavity, and electromagnetic induction heating causes eddy currents to be generated in the magnetically conductive element, thus heating the inside of the cigarette. After the cigarette has been heated internally and the magnetically conductive element has been removed, the cigarette is transferred to the second heating cavity, where a hot airflow generated by the resistance heating device provides secondary heating to the outside of the cigarette.

[0009] Preferably, the magnetic conductive element is a metal sheet.

[0010] Preferably, the device body is provided with a rotating mechanism, which includes: a rotating arm rotatably disposed on the device body and a protective cover disposed at the end of the rotating arm. The protective cover can be rotated relative to the device body by the rotating arm to close the first heating chamber or the second heating chamber.

[0011] Preferably, the resistance heating device includes: a heating cylinder coaxially disposed within the second heating chamber, wherein an annular heating channel is formed between the inner wall of the heating cylinder and the outer surface of the cigarette; a heating element embedded in the cylinder wall; and the heating cylinder being electrically connected to a power module within the device body via a wire.

[0012] Preferably, the inner wall of the heating cylinder is provided with a plurality of guide protrusions spaced apart along the axial direction, and each guide protrusion is evenly distributed along the circumference of the heating cylinder. When the top of the guide protrusion contacts the outer surface of the cigarette, the inner wall surface of the heating cylinder and the outer surface of the cigarette form the annular heating channel.

[0013] Preferably, the guide protrusion has a guide slope at its inlet end, and the guide slope slopes downward from the opening end of the heating cylinder toward the inner wall.

[0014] The beneficial effects of this utility model are:

[0015] The dual-cavity segmented heated non-combustible device of this application first uses an electromagnetic induction coil to heat the inside of the cigarette, which is equipped with a magnetic element, and then uses a resistance heating device to generate a hot airflow to heat the outside of the cigarette a second time. This segmented heating method achieves uniform heating of the cigarette from the inside out, solving the problem of overheating of the outer tobacco layer and insufficient heating of the inner layer in traditional heating methods. The heating cylinder in the resistance heating device forms an annular heating channel with the outer surface of the cigarette. The heating element is embedded in the cylinder wall, and the generated hot airflow is evenly distributed in the annular channel, ensuring uniform heating of all parts of the cigarette's exterior and further improving the uniformity of heating. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a dual-cavity segmented heated non-combustible device according to this application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a dual-cavity segmented heated non-combustible device according to this application. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of a dual-cavity segmented heated non-combustible device according to this application. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the structure of a dual-cavity segmented heated non-combustible device according to this application. Figure 4 ;

[0021] Figure 5 This is a schematic diagram of the structure of a dual-cavity segmented heated non-combustible device according to this application. Figure 5 . Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0023] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0024] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0025] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0026] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0027] The working principle of this utility model is as follows:

[0028] A dual-chamber segmented heating non-combustible device includes a device body 1, which has an independent first heating chamber 2 and a second heating chamber 3 inside.

[0029] An electromagnetic induction coil is provided in the first heating chamber 2 to receive a cigarette 5 with a magnetically conductive element 4 inserted therein. The magnetically conductive element 4 is detachably installed in the tobacco section of the cigarette 5, and is preferably a metal sheet. When the cigarette 5 with the magnetically conductive element 4 inserted is placed in the first heating chamber 2, eddy currents are generated in the magnetically conductive element 4 through electromagnetic induction heating, thereby heating the inside of the cigarette.

[0030] After the cigarette 5, which has completed internal heating, is removed and the magnetic element 4 is taken out, it is transferred to the second heating chamber 3. The second heating chamber 3 is equipped with a resistance heating device, whose heating surface forms a non-contact heating space with the outer surface of the cigarette 5. The hot airflow generated by the resistance heating device is used to perform secondary heating on the outside of the cigarette.

[0031] The device body 1 is provided with a rotating mechanism 8, which includes a rotating arm 82 rotatably mounted on the device body 1 and a protective cover 83 located at the end of the rotating arm 82. The protective cover 83 can be rotated relative to the device body 1 by the rotating arm 82 to close the first heating chamber 2 or the second heating chamber 3.

[0032] The resistance heating device includes a heating cylinder 311, which is coaxially arranged in the second heating chamber 3. An annular heating channel 312 is formed between the inner wall of the heating cylinder 311 and the outer surface of the cigarette 5. The heating element is embedded in the cylinder wall of the heating cylinder 311. The heating cylinder 311 is electrically connected to the power module in the device body 1 through a wire.

[0033] The heating element and electromagnetic induction coil in the above technical solution are mature components in this technical field, so they are not shown in the accompanying drawings.

[0034] The inner wall of the heating cylinder 311 is provided with a plurality of guide protrusions 316 spaced axially, and the guide protrusions 316 are evenly distributed around the circumference of the heating cylinder 311. When the top of the guide protrusion 316 contacts the outer surface of the cigarette 5, the inner wall surface of the heating cylinder 311 and the outer surface of the cigarette 5 form the annular heating channel 312 (i.e., a non-contact heating space). To facilitate the insertion of the cigarette 5, the inlet end of the guide protrusion 316 is provided with a guide slope 318, which slopes downward from the opening end of the heating cylinder 311 toward the inner wall. When the cigarette 5 is placed into the heating cylinder 311, the guide slope 318 can guide the cigarette 5 smoothly into the interior of the heating cylinder 311 and ensure that the cigarette 5 is in close contact with the inner wall of the heating cylinder 311, thereby achieving uniform external heating. This design not only improves the convenience of cigarette insertion, but also enhances the uniformity and efficiency of heating.

[0035] This application discloses a dual-cavity segmented heated tobacco product. First, an electromagnetic induction coil heats the interior of the cigarette, which contains a magnetically conductive element. Then, a resistance heating device generates a hot airflow to further heat the exterior of the cigarette. This segmented heating method ensures uniform heating of the cigarette from the inside out, solving the problem of overheating the outer layer of tobacco and insufficient heating of the inner layer in traditional heating methods. The heating cylinder in the resistance heating device forms an annular heating channel with the outer surface of the cigarette. The heating element is embedded in the cylinder wall, and the generated hot airflow is evenly distributed within the annular channel, ensuring uniform heating throughout the cigarette and further improving heating uniformity. This uniform heating method allows the effective components in the tobacco to be fully and evenly released, improving the taste and quality of the tobacco and providing users with a smoking experience closer to that of traditional cigarettes.

[0036] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A dual chamber segmented heat-not-burn device, characterized in that, The device includes a main body (1), which has an independent first heating chamber (2) and a second heating chamber (3) inside. An electromagnetic induction coil is provided in the first heating chamber (2) to receive a cigarette (5) with a magnetic element (4) inserted in it. The magnetic element (4) is detachably installed in the tobacco section of the cigarette (5). A resistance heating device is provided in the second heating chamber (3), and its heating surface forms a non-contact heating space with the outer surface of the cigarette (5). The cigarette (5) with the magnetic element (4) inserted in it is placed in the first heating chamber (2), and the magnetic element (4) generates eddy currents through electromagnetic induction heating to heat the inside of the cigarette. After the cigarette (5) has been heated inside and the magnetic element (4) has been removed, the cigarette (5) is transferred to the second heating chamber (3), and the outside of the cigarette is heated again by the hot air flow generated by the resistance heating device.

2. A double cavity segmented heat-not-burn device according to claim 1, wherein, The magnetic conductive element (4) is a metal sheet.

3. A double cavity segmented heat-not-burn device according to claim 1, wherein, The device body (1) is provided with a rotating mechanism (8), which includes a rotating arm (82) rotatably disposed on the device body (1) and a protective cover (83) disposed at the end of the rotating arm (82). The protective cover (83) can be rotated relative to the device body (1) by the rotating arm (82) to close the first heating chamber (2) or the second heating chamber (3).

4. The dual cavity segmented heat-not-burn device of claim 1, wherein, The resistance heating device includes: a heating cylinder (311) coaxially disposed in the second heating chamber (3), wherein an annular heating channel (312) is formed between the inner wall of the heating cylinder (311) and the outer surface of the cigarette (5); a heating element embedded in the cylinder wall of the heating cylinder (311); and the heating cylinder (311) is electrically connected to the power module in the device body (1) through a wire (315).

5. A double cavity segmented heat-not-burn device according to claim 4, wherein, The inner wall of the heating cylinder (311) is provided with a plurality of guide protrusions (316) spaced apart along the axial direction. Each guide protrusion (316) is evenly distributed around the heating cylinder (311). When the top of the guide protrusion (316) contacts the outer surface of the cigarette (5), the inner wall surface of the heating cylinder (311) and the outer surface of the cigarette (5) form the annular heating channel (312).

6. A twin cavity sectional heat-not-burner according to claim 5, wherein, The guide protrusion (316) has a guide slope (318) at its inlet end, and the guide slope (318) slopes downward from the opening end of the heating cylinder (311) toward the inner wall.

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