A heat-dissipating structure and heated cigarette

Abstract

This invention relates to the field of heated cigarette technology, specifically disclosing a heat-releasing structure and a heated cigarette. The first cavity contains an initiating solution. Multiple through-holes are arranged in an array on the outer wall of the inner shell, with m rows along the circumference and n columns along the axial direction of the inner shell, where m and n are both integers greater than 1. A heating layer fills the space between the outer and inner shells. Several plugs are correspondingly positioned to block the through-holes. An initiating component delivers the initiating solution to the heating layer. The heating layer and the initiating solution undergo an exothermic reaction to melt the plugs, allowing the initiating solution in the first cavity to flow into the heating layer through the through-holes. By delivering the initiating solution to the heating layer through the initiating component, a primary chemical reaction occurs between the heating layer and the initiating solution, releasing heat. This released heat melts the plugs in adjacent areas, thus achieving a gradual release of the initiating solution from the first cavity and promoting the staged, continuous exothermic reaction.

Description

Technical Field

[0001] This invention relates to the field of heated cigarette technology, and more particularly to a heat-releasing structure and a heated cigarette. Background Technology

[0002] Heated cigarettes are a new type of tobacco product that releases smoke by heating a thin sheet of tobacco containing a "smoke-generating agent". They typically use non-combustion heating (below 500°C) to release aerosols from the tobacco material, thus avoiding the release of large amounts of toxic and harmful substances during the high-temperature decomposition of the tobacco material. Compared with traditional combustion cigarettes, heated non-combustion cigarettes have the advantages of less environmental pollution and less harm to smokers without changing the traditional "smoking" habit.

[0003] Based on different heating methods, heated cigarettes can be divided into electric heating, carbon heating, and physicochemical reaction heating types. Self-heating cigarettes belong to the physicochemical reaction type, which uses the heat generated by the physical and chemical reactions of the heating material as a heat source to heat the tobacco material. Its characteristic is that the heat for heating the tobacco comes from physicochemical reactions, such as the heat of crystallization generated during the crystallization process of crystalline substances, the heat of reaction generated by acid-base reactions, and the heat of reaction generated by oxidation-reduction. However, existing self-heating cigarettes lack effective heat management methods when heating tobacco materials, making heat control difficult. The exothermic reaction is too rapid, making it difficult to continuously heat the tobacco material for a long time, thus affecting the consumer's smoking experience. Summary of the Invention

[0004] The purpose of this invention is to provide a heat-generating structure and a heated cigarette to solve the problem that existing self-heating cigarettes have difficulty in continuously controlling the heat generated by heating tobacco materials over a long period of time.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, the present invention provides a heat-dissipating structure, comprising:

[0007] The outer shell is cylindrical with openings at both the top and bottom ends. The bottom plate is fixedly connected to the outer shell and closes the lower opening. The outer shell is made of a thermally conductive material.

[0008] The inner shell and the heating layer are provided. The inner shell has a first cavity inside, which contains an initiation solution. The outer wall of the inner shell has multiple through holes, which are arranged in an array. There are m rows along the circumference of the inner shell and n columns along the axial direction of the inner shell, where m and n are both integers greater than 1. The outer shell is fitted onto the inner shell, and the heating layer is filled between the outer shell and the inner shell. Each through hole connects the first cavity and the heating layer.

[0009] A plurality of plugs are provided, and the plurality of plugs are correspondingly arranged with the plurality of through holes, and the plugs are blocked in the through holes;

[0010] An initiation component is provided, which is capable of delivering the initiation solution to the heating layer. The heating layer and the initiation solution can undergo an exothermic reaction to melt the plug, thereby allowing the initiation solution in the first cavity to flow into the heating layer through the through hole.

[0011] As a preferred embodiment of the above-mentioned exothermic structure, the initiation assembly includes a rotating seat and a fixed seat. The rotating seat has a second cavity inside, and the initiation solution is placed inside the second cavity. The rotating seat has a plurality of first channels communicating with the second cavity. The fixed seat has a plurality of second channels corresponding one-to-one with the plurality of first channels. The fixed seat is fixedly connected to the outer shell and closes the upper opening of the outer shell. The plurality of second channels communicate with the heating layer. The rotating seat can rotate relative to the fixed seat to have a feeding position and a closed position. When the rotating seat is in the feeding position, the plurality of first channels and the plurality of second channels are connected. The initiation solution in the second cavity flows sequentially through the first channels and the second channels and flows into the heating layer. When the rotating seat is in the closed position, the plurality of first channels are blocked by the fixed seat.

[0012] As a preferred embodiment of the above-mentioned heat-releasing structure, the heat-releasing structure further includes a sealing gasket, which is disposed between the outer shell and the fixed base.

[0013] As a preferred embodiment of the aforementioned heat-generating structure, the plug is made of paraffin wax.

[0014] As a preferred embodiment of the above-mentioned exothermic structure, the initiating solution is a sodium bisulfate solution, and the heating layer is a mixture of calcium oxide, aluminum powder, sodium carbonate, and ferric oxide.

[0015] As a preferred embodiment of the above-mentioned heat-releasing structure, the inner shell is cylindrical and has an opening at the upper end, which connects to the first cavity.

[0016] As a preferred embodiment of the aforementioned heat-generating structure, the outer shell is made of copper.

[0017] As a preferred technical solution for the above-mentioned heat-releasing structure, the base plate is made of a breathable material.

[0018] On the other hand, the present invention also provides a heated cigarette, comprising a suction section and a tobacco section arranged sequentially from upstream to downstream, and a heat-releasing structure as described in any of the above embodiments, wherein the suction section is fixedly connected to the initiation component, and the outer shell is disposed inside the tobacco section.

[0019] As a preferred technical solution for the above-mentioned heated cigarette, the heated cigarette also includes forming paper, which wraps around the tobacco segment.

[0020] The beneficial effects of this invention are as follows:

[0021] This invention provides a heat-releasing structure and a heated cigarette. The heat-releasing structure includes an outer shell, a bottom plate, an inner shell, a heating layer, several plugs, and an initiation assembly. The outer shell is barrel-shaped with openings at both the top and bottom. The bottom plate is fixedly connected to the outer shell and closes the lower opening. The outer shell is made of a thermally conductive material. The inner shell has a first cavity containing an initiation solution. The outer wall of the inner shell has multiple through holes arranged in an array, with m rows along the circumference and n columns along the axial direction of the inner shell, where m and n are both integers greater than 1. The outer shell is fitted onto the inner shell, and the heating layer fills the space between the outer shell and the inner shell. Each through hole connects the first cavity and the heating layer. Several plugs are arranged one-to-one with several through holes, and the plugs block the through holes. The initiation assembly can deliver the initiation solution to the heating layer. The heating layer and the initiation solution can undergo an exothermic reaction to melt the plugs, allowing the initiation solution in the first cavity to flow into the heating layer through the through holes.

[0022] This configuration allows the initiation component to deliver an initiation solution to the heating layer, causing a primary chemical reaction between the heating layer and the initiation solution, releasing heat. The released heat is conducted to the tobacco segment through the outer shell. Simultaneously, as the initiation solution delivered by the initiation component reacts with the heating layer, the released heat can melt the adjacent stopper. Furthermore, the initiation solution in the first chamber is gradually released along the axial direction of the inner shell, thereby promoting the staged and continuous exothermic reaction. This enables long-term continuous control of the exothermic heat, allowing the tobacco segment to achieve efficient atomization in a heated but non-combustible state, meeting the smoking needs of consumers. Attached Figure Description

[0023] Figure 1 A schematic diagram of the heat-dissipating structure provided by the present invention;

[0024] Figure 2 A cross-sectional view of the heat-dissipating structure provided by the present invention;

[0025] Figure 3 This is a cross-sectional view of the heat-releasing structure and the heated cigarette provided by the present invention.

[0026] in:

[0027] 1. Outer shell; 2. Base plate;

[0028] 3. Inner shell; 31. First cavity; 32. Through hole;

[0029] 4. Heating layer; 5. Plug;

[0030] 6. Initiation assembly; 61. Rotary seat; 611. Second cavity; 612. First flow channel; 62. Fixed seat;

[0031] 7. Sealing septum; 8. Suction section; 9. Tobacco section; 10. Forming paper. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated 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. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0034] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0035] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 2 As shown, this embodiment provides a heat-dissipating structure, which includes an outer shell 1, a bottom plate 2, an inner shell 3, a heating layer 4, several plugs 5, and an initiation assembly 6. The outer shell 1 is barrel-shaped with openings at both the top and bottom. The bottom plate 2 is fixedly connected to the outer shell 1 and closes the lower opening. The outer shell 1 is made of a thermally conductive material. The inner shell 3 has a first cavity 31 inside, which contains an initiation solution. The outer wall of the inner shell 3 has multiple through holes 32, which are arranged in an array and arranged in m rows along the circumference of the inner shell 3. The inner shell 3 has n columns arranged axially, where m and n are both integers greater than 1. The outer shell 1 is fitted onto the inner shell 3. The heating layer 4 is filled between the outer shell 1 and the inner shell 3. Each through hole 32 connects the first cavity 31 and the heating layer 4. A number of plugs 5 are arranged one-to-one with a number of through holes 32, and the plugs 5 block the through holes 32. The initiation component 6 can deliver an initiation solution to the heating layer 4. The heating layer 4 and the initiation solution can undergo an exothermic reaction to melt the plugs 5, so that the initiation solution in the first cavity 31 flows into the heating layer 4 through the through holes 32.

[0038] This exothermic structure provides a heat source for the tobacco segment 9 of the heated cigarette. The initiation component 6 delivers an initiation solution to the heating layer 4, causing the heating layer 4 to undergo a primary chemical reaction with the initiation solution and release heat. The released heat is conducted to the tobacco segment 9 through the outer shell 1. Simultaneously, as the exothermic reaction between the initiation solution delivered by the initiation component 6 and the heating layer 4 proceeds, the released heat can be used to melt the plug 5 in its vicinity. Along the axial direction of the inner shell 3, the initiation solution in the first cavity 31 is gradually released, thereby promoting the staged and continuous exothermic reaction to achieve long-term continuous control of the exothermic heat. This allows the tobacco segment 9 to achieve efficient atomization in a heated but non-combustible state, meeting the smoking needs of consumers.

[0039] In this embodiment, a plurality of through holes 32 are evenly distributed along the circumferential direction of the inner shell 3, and a plurality of through holes 32 are staggered along the axial direction of the inner shell 3, so as to ensure that the initiation solution released after the plug 5 melts can make uniform contact with the heating layer 4. Specifically, m is 5 and n is 6. Of course, in other embodiments, the specific values ​​of m and n, as well as the size and position of the through holes 32, can be set according to actual needs, and no further restrictions are imposed here.

[0040] Optionally, the initiation assembly 6 includes a rotating seat 61 and a fixed seat 62. The rotating seat 61 has a second cavity 611 inside, which contains an initiation solution. The rotating seat 61 has a plurality of first channels 612 communicating with the second cavity 611. The fixed seat 62 has a plurality of second channels corresponding one-to-one with the plurality of first channels 612. The fixed seat 62 is fixedly connected to the outer shell 1 and closes the upper opening of the outer shell 1. The plurality of second channels are all connected to the heating layer 4. The rotating seat 61 can rotate relative to the fixed seat 62 so that the rotating seat 61 has a feeding position and a closed position. When the rotating seat 61 is in the feeding position, the plurality of first channels 612 and the plurality of second channels are connected. The initiation solution in the second cavity 611 flows through the first channels 612 and the second channels in sequence and flows into the heating layer 4. When the rotating seat 61 is in the closed position, the plurality of first channels 612 are blocked by the fixed seat 62. It should be noted that, in order to prevent the rotating seat 61 and the fixed seat 62 from rotating again when the rotating seat 61 is in the feeding position, which would affect the delivery of the initiation solution to the heating layer 4, the rotating seat 61 and the fixed seat 62 can be locked by snapping them together to lock their relative positions.

[0041] In this embodiment, the fixed base 62 has a rotating cavity, the rotating base 61 is partially housed in the rotating cavity, a number of second flow channels are evenly distributed on the bottom wall of the rotating cavity, a number of first flow channels 612 are evenly distributed on the bottom wall of the rotating base 61, and the number of both the first flow channels 612 and the second flow channels is five.

[0042] Optionally, to prevent the initiation solution from overflowing during the process of the rotating seat 61 conveying the initiation solution to the heating layer 4 via the first flow channel 612 and the second flow channel, the heat dissipation structure also includes a sealing septum 7, which is disposed between the outer shell 1 and the fixed seat 62.

[0043] Optionally, the plug 5 is made of paraffin wax.

[0044] Optionally, the initiating solution is a sodium bisulfate solution, and the heating layer 4 is a mixture of calcium oxide, aluminum powder, sodium carbonate, and ferric oxide. In this embodiment, the heating layer 4 is a fixed powder, which is molded into a hollow column shape using a mold, and the hollow cavity of the heating layer 4 is fitted onto the outer wall of the inner shell 3. It should be noted that the heat released by the exothermic reaction between the heating layer 4 and the initiating solution is greater than 200°C.

[0045] Optionally, the inner shell 3 is cylindrical with an opening at the top, which connects to the first cavity 31. Of course, in other embodiments, the shape of the inner shell 3 can also be set as a polygonal prism according to actual needs, and no further limitations are imposed here. It should be noted that the fixing seat 62 seals the opening, which can further prevent the initiation solution in the first cavity 31 from flowing through the opening and reacting with the heating layer 4.

[0046] Preferably, the outer casing 1 is made of copper.

[0047] Optionally, the base plate 2 is made of a breathable material. In this embodiment, the base plate 2 is a microporous high-permeability paper.

[0048] Please refer to Figure 3 As shown, this embodiment also provides a heated cigarette, including a suction section 8 and a tobacco section 9 arranged sequentially from upstream to downstream, as well as the heat-releasing structure described above. The suction section 8 is fixedly connected to the initiation assembly 6, and the outer shell 1 is disposed inside the tobacco section 9. Further, the suction section 8 is fixedly connected to the rotating base 61.

[0049] Optionally, the heated cigarette also includes forming paper 10, which wraps around the tobacco segment 9. Further, the heated cigarette also includes cigarette paper, which includes a first segment and a second segment. The first segment wraps around the forming paper 10 and the fixing seat 62, and the second segment wraps around the smoking segment 8 and part of the rotating seat 61.

[0050] In this embodiment, the heat-releasing structure is provided with an airflow channel that connects the suction section 8 and the tobacco section 9.

[0051] Optionally, along the axial direction of the inner shell 3, a plurality of partitions are provided on the inner wall of the first cavity 31 at intervals, dividing the first cavity 31 into a plurality of receiving cavities, each of which is used to store the initiating solution. This arrangement can prevent the consumer from easily handling the heated cigarette during smoking, which would cause the initiating solution in the first cavity 31 to shake unstablely.

[0052] The assembly process of the heat-dissipating structure is as follows:

[0053] S100: Insert the heating layer 4 into the outer casing 1;

[0054] S200: After sealing and blocking several plugs 5 and corresponding through holes 32, fill the inner shell 3 with initiation solution;

[0055] S300: Insert the inner shell 3 into the hollow cavity of the heating layer 4;

[0056] S400: The sealing gasket 7 is placed on the housing 1, and the fixing seat 62 closes the upper opening of the housing 1.

[0057] It should be noted that when smoking heated cigarettes, the suction section 8 should be placed vertically with the suction section 8 facing upwards. Rotate the suction section 8 to drive the rotating seat 61 to rotate and put it in the feeding position. After waiting for about 30 seconds, you can start smoking.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A heat-exothermic structure, characterized in that, include: The outer shell (1) and the bottom plate (2) are barrel-shaped and have openings at both the top and bottom. The bottom plate (2) is fixedly connected to the outer shell (1) and closes the lower opening. The outer shell (1) is made of thermally conductive material. The inner shell (3) and the heating layer (4) are provided. The inner shell (3) is provided with a first cavity (31) and the first cavity (31) contains an initiation solution. The outer wall of the inner shell (3) is provided with a plurality of through holes (32). The plurality of through holes (32) are arranged in an array, with m rows arranged along the circumferential direction of the inner shell (3) and n columns arranged along the axial direction of the inner shell (3), where m and n are both integers greater than 1. The outer shell (1) is fitted onto the inner shell (3). The heating layer (4) is filled between the outer shell (1) and the inner shell (3). Each through hole (32) connects the first cavity (31) and the heating layer (4). A plurality of plugs (5) are provided, and the plurality of plugs (5) are provided in a one-to-one correspondence with the plurality of through holes (32), and the plugs (5) are blocked in the through holes (32); The initiation component (6) is capable of delivering the initiation solution to the heating layer (4), and the heating layer (4) and the initiation solution can undergo an exothermic reaction to melt the plug (5), so that the initiation solution in the first cavity (31) flows into the heating layer (4) through the through hole (32).

2. The heat-dissipating structure according to claim 1, characterized in that, The initiation assembly (6) includes a rotating seat (61) and a fixed seat (62). The rotating seat (61) has a second cavity (611) inside, which contains the initiation solution. The rotating seat (61) has a plurality of first channels (612) communicating with the second cavity (611). The fixed seat (62) has a plurality of second channels corresponding one-to-one with the plurality of first channels (612). The fixed seat (62) is fixedly connected to the outer shell (1) and closes the upper opening of the outer shell (1). The plurality of second channels are all connected to the initiation solution. The heating layer (4) has a rotating seat (61) that can rotate relative to the fixed seat (62) to have a feeding position and a closed position. When the rotating seat (61) is in the feeding position, a plurality of first flow channels (612) and a plurality of second flow channels are connected. The initiation solution in the second cavity (611) flows through the first flow channels (612) and the second flow channels in sequence and flows into the heating layer (4). When the rotating seat (61) is in the closed position, a plurality of first flow channels (612) are blocked by the fixed seat (62).

3. The heat-dissipating structure according to claim 2, characterized in that, The heat-dissipating structure also includes a sealing septum (7), which is disposed between the outer shell (1) and the fixing seat (62).

4. The heat-dissipating structure according to claim 1, characterized in that, The plug (5) is made of paraffin wax.

5. The heat-dissipating structure according to claim 1, characterized in that, The initiation solution is a sodium bisulfate solution, and the heating layer (4) is a mixture of calcium oxide, aluminum powder, sodium carbonate and ferric oxide.

6. The heat-dissipating structure according to claim 1, characterized in that, The inner shell (3) is cylindrical and has an opening at the upper end, which connects to the first cavity (31).

7. The heat-dissipating structure according to claim 1, characterized in that, The outer casing (1) is made of copper.

8. The heat-dissipating structure according to claim 1, characterized in that, The base plate (2) is made of breathable material.

9. A heated cigarette, characterized in that, It includes a suction section (8) and a tobacco section (9) arranged sequentially from upstream to downstream, and a heat-releasing structure as described in any one of claims 1-8, wherein the suction section (8) is fixedly connected to the initiation component (6), and the outer shell (1) is disposed inside the tobacco section (9).

10. The heated cigarette according to claim 9, characterized in that, The heated cigarette also includes forming paper (10) which wraps around the tobacco segment (9).

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