Temperature locking type tobacco product

Abstract

The invention provides a temperature locking type tobacco product which comprises a heating body and an aerosol generating substrate, the heating body is arranged in a plane shape, the aerosol generating substrate is in a strip shape and forms a folding unit after being folded for multiple times, the unfolded plane on the folding unit and the plane of the heating body are oppositely arranged, and the folding unit is arranged on at least one side of the heating body; and the crease area of the folding unit corresponds to the fixed end of the heating body and the free end opposite to the fixed end. According to the temperature locking type tobacco product, the plane of the heating body is matched with the plane of the folding unit, the contact area is increased, the heat transfer area is large, the aerosol generating substrate can obtain sufficient heat to release aerosol, the aerosol is completely consumed, and the utilization rate of the aerosol generating substrate is increased. When the heating body is used for heating, heat tends to rise from the bottom to the top, and the fold area near the top of the heating body can block natural diffusion of the heat and lock the heat in the folding unit, so that heat loss is reduced, and the utilization rate of the heat is improved.

Description

Technical Field

[0001] This invention relates to the field of aerosol products technology, and more particularly to a heat-locking tobacco product. Background Technology

[0002] In the field of novel heated tobacco products, the smoke-generating material and the heating element produce aerosols through heat transfer. To guide consumers from traditional cigarettes to novel tobacco products, these products are increasingly designed in the shape of traditional cigarettes, with the heating element extending into the interior of the tobacco product. The heating element transfers heat to the tobacco product, causing its components to be released and generate aerosols.

[0003] When the heating element is inserted into the tobacco product, it is small in size and surface area for easy insertion, resulting in a small heat transfer area. When the part of the tobacco product near the heating element is completely consumed, the part far from the heating element is only partially consumed or not consumed at all, resulting in waste. Summary of the Invention

[0004] This invention provides a heat-locking tobacco product to solve the technical problem in the prior art where the heat transfer area of ​​the heating element is small, resulting in some tobacco products not being consumed and causing waste.

[0005] To achieve the above objectives, the technical solution provided by the present invention is as follows: This invention provides a heat-locking tobacco product, comprising a heating element and an aerosol generating matrix. The heating element is planar, and the aerosol generating matrix is ​​strip-shaped. After being folded multiple times, it forms a folding unit, with the folded surface of the folding unit facing the plane of the heating element. The folding unit is disposed on at least one side of the heating element. The folding area of ​​the folding unit corresponds to the fixed end of the heating element and the free end opposite to the fixed end.

[0006] Furthermore, the angle between the plane containing the crease area and the plane of the heating element is 70° to 90°.

[0007] Furthermore, the crease areas of the multiple folding units are arranged in parallel.

[0008] Furthermore, the folded portion of the folding unit includes a cutting line, which deforms under the action of aerosol to form a movable valve opening.

[0009] Furthermore, the shape of the closed figure fitted by the cutting line is selected from one or more of the following: circle, triangle, square, trapezoid, and line.

[0010] Furthermore, the cross-sectional shape of the folded portion of the folding unit in the direction perpendicular to the side of the heating element is selected from one or more of the following: arc-shaped, square, stepped, wavy, and sawtooth.

[0011] Furthermore, the heat-locking tobacco product includes a base and a packaging body, one end of the heating element is fixed to the base, and the packaging body is wrapped around the aerosol generating matrix and the base.

[0012] Furthermore, the packaging body includes a support portion, a first port portion, and a second port portion. The support portion surrounds the aerosol generating matrix and the base. The first port portion is located at one end of the base, and the second port portion is located at one end of the aerosol generating matrix. The first port portion and the second port portion are detachably connected to the support portion, respectively.

[0013] Furthermore, a first air inlet is formed between the support portion and the first port portion, and a first air outlet is formed between the second port portion and the support portion. The first air inlet and the first air outlet are diagonally arranged and connected on the heat-locking tobacco product to form a first airflow trajectory.

[0014] Furthermore, a second air inlet is formed between the support portion and the first port portion, and the second air outlet of the second port portion is disassembled, and the second air inlet and the second air outlet are connected to form a second airflow trajectory.

[0015] Furthermore, a third air inlet and a third air outlet are provided on the two sides of the support that are perpendicular to the heating element. The third air inlet is closer to the base than the third air outlet, and the third air inlet and the third air outlet are connected to form a third airflow trajectory.

[0016] Furthermore, a fourth air inlet and a fourth air outlet are provided on the two sides of the support that are perpendicular to the heating element. The fourth air inlet and the fourth air outlet are both located in the middle of the folding unit, and the fourth air inlet and the fourth air outlet are connected to form a fourth airflow trajectory.

[0017] Furthermore, a fifth air inlet is provided on one side of the support portion perpendicular to the heating element, the fifth air inlet being close to the base, and a fifth air outlet is formed between the other side of the support portion perpendicular to the heating element and the second port portion, the fifth air inlet and the fifth air outlet being connected to form a fifth airflow trajectory.

[0018] Furthermore, an air intake channel is formed on the base, and the first port portion and the second port portion are disassembled to form a sixth airflow trajectory.

[0019] The heat-locking tobacco product provided by this invention features a heating element whose plane matches the folded plane of the aerosol-generating matrix, significantly increasing the contact area between the two. This results in a large heat transfer zone, allowing the aerosol-generating matrix to receive sufficient heat to release aerosols, ensuring complete consumption of the aerosol-generating matrix and improving its utilization rate. During heating, the heat tends to rise from the bottom to the top. The folded area near the top of the heating element blocks natural heat diffusion, locking the heat within the folded unit, reducing heat loss, and improving heat utilization. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the heat-locking tobacco product in the embodiments of this application; Figure 2 This is a schematic diagram showing the arrangement of the folding units on both sides of the heating element in an embodiment of this application; Figure 3 This is a schematic diagram of the structure in an embodiment of this application where the cutting line in the crease area forms the movable valve port; Figure 4 This is another structural schematic diagram of a heat-locking tobacco product according to an embodiment of this application, which includes a base and a packaging body, the base of which is not shown; Figure 5 This is a schematic diagram of the first airflow trajectory inside the heat-locking tobacco product in the embodiments of this application; Figure 6 This is a schematic diagram of the second airflow trajectory inside the heat-locking tobacco product in the embodiments of this application; Figure 7 This is a schematic diagram of the third airflow trajectory inside the heat-locking tobacco product in the embodiments of this application; Figure 8 This is a schematic diagram of the fourth airflow trajectory inside the heat-locking tobacco product in the embodiments of this application; Figure 9 This is a schematic diagram of the fifth airflow trajectory inside the heat-locking tobacco product in the embodiments of this application; Figure 10 This is a schematic diagram of the sixth airflow trajectory inside the heat-locked tobacco product in the embodiments of this application.

[0022] Figure label: 1. Heating element; 2. Folding unit; 3. Fold area; 4. Cutting line; 5. Base; 61. Support part; 62. First port part; 63. Second port part. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Reference Figure 1This application provides a heat-locking tobacco product, including a heating element 1 and an aerosol generating matrix. The heating element 1 is planar, and the aerosol generating matrix is ​​strip-shaped. After being folded multiple times, it forms a folding unit 2, with the folded plane of the folding unit 2 facing the plane of the heating element 1. The folding unit 2 is provided on at least one side of the heating element 1. The fold area 3 of the folding unit 2 corresponds to the fixed end of the heating element 1 and the free end that is opposite to the fixed end.

[0029] In this embodiment, "strip" refers to a shape with a certain width and a continuous, extendable length. In this field, slender aerosol-generating matrices such as filaments or strips are commonly used, with the width of the strip being much greater than that of the filaments or strips. An aerosol-generating matrix refers to a substance or material that, when heated, can release volatile or semi-volatile components that can form aerosols.

[0030] In this embodiment, the creases of the aerosol generating matrix are perpendicular to or at a certain angle to the extension direction of the strip. The two end faces of the folded unit 2 formed after folding are the crease areas 3, which are planes formed by multiple creases of the aerosol generating matrix. The crease areas 3 are the two end faces of the folded unit 2 located at the folding position. The two sides of the folded unit 2 are composed of planes in multiple thickness directions of the folded aerosol generating matrix, and these two sides are placed perpendicular to the heating element 1. After the aerosol generating matrix is ​​folded, the upper and lower surfaces are placed on the sides of the heating element 1. The upper and lower surfaces are not folded. The fixed end of the heating element 1 and the free end opposite to the fixed end are located near the two crease areas 3 to facilitate heating the entire folded unit 2.

[0031] In this embodiment of the application, preferably, folding units 2 are provided on both sides of the heating element 1, as shown in the reference. Figure 1 The length and width of heating element 1 are much greater than its thickness. The length and width of heating element 1 are slightly less than or equal to the length and width of the upper and lower surfaces of the folding unit 2 that contact it, respectively, and the length of each side of the upper and lower surfaces of the folding unit 2 extending beyond the heating element 1 is no more than 1 mm. That is, the folding unit 2 completely covers the plane of heating element 1. The above arrangement can reduce the waste caused by incomplete heating of the aerosol generating matrix, and ensure that most of the aerosol generating matrix can fully exchange heat with the heating element 1, thereby improving its utilization rate.

[0032] In the embodiments of this application, reference is made to Figure 2 The arrangement of the folding units 2 on both sides of the heating element 1 can be configured as needed. One or more folding units 2 can be arranged on one side of the heating element 1. Multiple folding units 2 can be laid flat. The size of each folding unit 2 can be different. Multiple folding units 2 can be arranged side by side on the plane corresponding to the plane of the heating element 1, such as... Figure 2After the two folded units 2 below the heating element 1 are arranged side by side, a larger folded unit 2 is then arranged below them. There are gaps inside the folded unit 2 and between adjacent folded units 2, which can form an air passage network.

[0033] In the aforementioned heat-locking tobacco product, the plane of the heating element 1 matches the folded plane of the aerosol-generating matrix, greatly increasing the contact area between the two. This results in a large heat transfer area, allowing the aerosol-generating matrix to receive sufficient heat to release aerosols, ensuring complete consumption of the aerosol-generating matrix and improving its utilization rate. When the heating element 1 heats, the heat tends to rise from the bottom to the top. The folded area 3 near the top of the heating element 1 blocks the natural diffusion of heat, locking the heat within the folded unit 2, reducing heat loss, and improving heat utilization.

[0034] In some embodiments, the angle between the plane containing the crease region 3 and the plane of the heating element 1 is 70° to 90°. In this embodiment, the crease region 3 forms a barrier layer at both ends of the folding unit 2. When the heating element 1 and the folding unit 2 exchange heat, the crease region 3 can lock in heat in the extending direction of the heating element 1. The larger the angle between the plane containing the crease region 3 and the plane of the heating element 1, the more difficult it is for heat to escape through the barrier layer from other gaps in the folding unit 2, and the longer it stays inside the folding unit 2, resulting in a better heat-locking effect. Preferably, the angle between the plane containing the crease region 3 and the plane of the heating element 1 is 90°.

[0035] In some embodiments, the crease areas 3 of multiple folding units 2 are arranged in parallel. That is, the height of the crease areas 3 of different folding units 2 can be different, that is, the upper and lower surface areas of different folding units 2 can be different, and their length and width only need to be slightly greater than or equal to the length and width of the heating element 1.

[0036] In some embodiments, the crease of the folding unit 2 includes a cutting line 4, which deforms under the action of the aerosol to form a movable valve opening. (Refer to...) Figure 3 The dashed line represents the cutting line 4, and the dotted line represents the connecting line. In this embodiment, the cutting line 4 can be a straight segment, a curved segment, or a combination thereof. Under the action of the aerosol, the cutting line 4 will open to form a movable valve, allowing heat to be released from the movable valve.

[0037] The shape of the movable valve orifice is the shape of the closed figure fitted by tangent line 4. Specifically, the shape of the closed figure fitted by tangent line 4 is selected from one or more of the following: circle, triangle, square, trapezoid, and line. (Refer to...) Figure 3 Cutting line 4 may consist of only a straight segment, but to reduce resistance, at least one branch line may be set at each end of the straight segment.

[0038] In some embodiments, the cross-sectional shape of the fold portion of the folding unit 2 in the direction perpendicular to the plane of the heating element 1 is selected from one or more of the following: arc-shaped, square, stepped, wavy, and sawtooth.

[0039] In other words, the two sides of the folding unit 2 include creases, and the top or bottom of the creases has a certain shape, which can be selected from various options. That is, if the folding unit 2 is viewed in section along the top and bottom of the creases through a plane perpendicular to the heating element 1, its cross-sectional shape is as described above. The thickness of the top or bottom of the crease is greater than the thickness of other parts of the folding unit 2, so the heat absorbed by the crease mainly comes from the heat carried by the flue gas. Aerosols are continuously generated in the area below the plane of the heating element 1, and under the action of heat, they gather in the direction of the crease. The thicker crease can utilize more of the heat carried by the aerosol to generate more aerosols and also provide a better heat retention effect.

[0040] In some embodiments, the heat-locking tobacco product includes a base 5 and a packaging body, with one end of the heating element 1 fixed to the base 5, and the packaging body surrounding the aerosol generating matrix and the base 5. (Refer to...) Figure 4 The packaging body is used to fix the relative position of the heating element 1 and the folding unit 2. At least one inner surface of the packaging body is attached to the folding unit 2 or the base 5 to prevent the heating element 1 or the folding unit 2 from shifting.

[0041] Specifically, the packaging body includes a support portion 61, a first port portion 62, and a second port portion 63. The support portion 61 surrounds the aerosol generating matrix and the base 5. The first port portion 62 is located at one end of the base 5, and the second port portion 63 is located at one end of the aerosol generating matrix. The first port portion 62 and the second port portion 63 are detachably connected to the support portion 61. (Refer to...) Figure 4 The base 5, heating element 1, and folding unit 2 are enclosed by the support part 61 to form a whole. The first port part 62 is detachably covered at one end of the base 5, and the second port part 63 is detachably covered at one end of the folding unit 2. The first port part 62 and the second port part 63 can be removed when needed.

[0042] In this embodiment, when the heating element 1 uses magnetic induction heating, it does not need to be connected to an external power supply, and the first port portion 62 does not need to be removed. When the heating element 1 uses resistive heating, it needs to be connected to an external power supply, and the heating element 1 has at least two external pins protruding, requiring the removal of the first port portion 62. The base 5 can be provided with two through holes that match the external pins, with each external pin corresponding to one of the through holes. The external pins pass through the through holes, with both end faces of the pins on the same plane as the end face of the base 5, or the pins extend beyond the base 5, with the pins extending 0.1mm to 1mm beyond the end face of the base 5, facilitating connection between the tobacco product and external circuitry and avoiding poor contact. In some embodiments, a first air inlet is formed between the support portion 61 and the first port portion 62, and a first air outlet is formed between the second port portion 63 and the support portion 61. The first air inlet and the first air outlet are diagonally arranged and connected on the heat-locking tobacco product to form a first airflow trajectory.

[0043] Reference Figure 5 The first air inlet and the first air outlet are set diagonally, so that the aerosol generated by heating the aerosol generation matrix flows through the first airflow trajectory shown in the figure, which prolongs the movement path of the aerosol in the folding unit 2, extends its residence time in the folding unit 2, and improves the heat retention effect.

[0044] In some embodiments, a second air inlet is formed between the support portion 61 and the first port portion 62, and the second port portion 63 is disassembled to form a second air outlet. The second air inlet and the second air outlet communicate to form a second airflow trajectory. (Refer to...) Figure 6 When a user inhales tobacco products, the suction from the user's mouth creates a negative pressure within the folding unit 2 near the base 5. The resulting aerosol is then released from the second port 63, and the aerosol's movement path is shown in the second airflow trajectory diagram. If the fold area 3 of the folding unit 2 includes a cutting line 4, the fold will deform, and the aerosol will be expelled from the active valve port with the air. When the user stops inhaling, the negative pressure disappears, and the fold returns to its original shape.

[0045] In some embodiments, a third air inlet and a third air outlet are disposed opposite each other on two sides of the support 61 perpendicular to the heating element 1. The third air inlet is closer to the base 5 than the third air outlet, and the third air inlet and the third air outlet communicate to form a third airflow trajectory. (Refer to...) Figure 7 A third air inlet is provided on one side of the support 61 perpendicular to the heating element 1, and a third air outlet is provided on the other side. The third air inlet is near one end of the base 5, and the third air outlet is near the top of the heating element 1. The aerosol movement path is referenced. Figure 7 The trajectory of the third airflow in the middle.

[0046] In some embodiments, a fourth air inlet and a fourth air outlet are disposed opposite each other on two sides of the support 61 perpendicular to the heating element 1. Both the fourth air inlet and the fourth air outlet are located in the middle of the folding unit 2, and the fourth air inlet and the fourth air outlet communicate to form a fourth airflow trajectory. (Refer to...) Figure 8 A fourth air inlet is provided on one side of the support 61 perpendicular to the heating element 1, and a fourth air outlet is provided on the other side. Both the fourth air inlet and the fourth air outlet are located in the middle of the two sides of the folding unit 2. The movement path of the aerosol is shown in the fourth airflow trajectory in the figure.

[0047] In some embodiments, a fifth air inlet is provided on one side of the support portion 61 perpendicular to the heating element 1, the fifth air inlet being close to the base 5. A fifth air outlet is formed between the other side of the support portion 61 perpendicular to the heating element 1 and the second port portion 63. The fifth air inlet and the fifth air outlet communicate to form a fifth airflow trajectory. (Refer to...) Figure 9 A fifth air inlet is provided on one side of the support 61 perpendicular to the heating element 1 and close to the base 5, and a fifth air outlet is formed between the other side and the second port 63. The movement path of the aerosol is shown in the fifth airflow trajectory in the figure.

[0048] In some embodiments, an air intake channel is formed on the base 5, and the first port portion 62 and the second port portion 63 are disassembled to form a sixth airflow trajectory. (Refer to...) Figure 10 The air intake channel on the base 5 does not interfere with the through hole of the mounting pin. A cutting line 4 can be provided at the top crease area 3 of the folding unit 2 to form a movable valve port. Removing the first port portion 62 and the second port portion 63 allows the aerosol to form a sixth airflow trajectory.

[0049] The configuration of the air inlet and outlet in the above embodiments, or the selective removal of the first port portion 62 and the second port portion 63, can make the movement path of the heated aerosol more tortuous than the shortest path. Furthermore, the newly generated aerosol has a higher temperature, and it continuously exchanges heat with the lower-temperature aerosol generating matrix along the tortuous path, which is beneficial to reducing the temperature of the flue gas.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat-locking tobacco product, characterized in that: The device includes a heating element and an aerosol generating matrix. The heating element is planar, and the aerosol generating matrix is ​​strip-shaped. After being folded multiple times, it forms a folded unit, with the folded surface of the folded unit facing the plane of the heating element. The folded unit is provided on at least one side of the heating element. The folded area of ​​the folded unit corresponds to the fixed end of the heating element and the free end facing the fixed end.

2. The heat-locking tobacco product according to claim 1, characterized in that, The angle between the plane containing the crease area and the plane of the heating element is 70° to 90°.

3. The heat-locking tobacco product according to claim 1, characterized in that, The crease areas of the multiple folding units are arranged in parallel.

4. The heat-locking tobacco product according to claim 1, characterized in that, The folded portion of the folding unit includes a cutting line, which deforms under the action of aerosol to form a movable valve opening.

5. The heat-locking tobacco product according to claim 4, characterized in that, The shape of the closed figure fitted by the cutting line is selected from one or more of the following: circle, triangle, square, trapezoid, and line.

6. The heat-locking tobacco product according to claim 1, characterized in that, The cross-sectional shape of the folded portion of the folding unit in the direction perpendicular to the plane of the heating element is selected from one or more of the following: arc-shaped, square, stepped, wavy, and sawtooth.

7. The heat-locking tobacco product according to any one of claims 1 to 6, characterized in that, The heat-locking tobacco product includes a base and a packaging body. One end of the heating element is fixed to the base, and the packaging body is wrapped around the aerosol generating matrix and the base.

8. The heat-locking tobacco product according to claim 7, characterized in that, The packaging body includes a support portion, a first port portion, and a second port portion. The support portion surrounds the aerosol generating matrix and the base. The first port portion is located at one end of the base, and the second port portion is located at one end of the aerosol generating matrix. The first port portion and the second port portion are detachably connected to the support portion.

9. The heat-locking tobacco product according to claim 8, characterized in that, A first air inlet is formed between the support portion and the first port portion, and a first air outlet is formed between the second port portion and the support portion. The first air inlet and the first air outlet are diagonally arranged and connected on the heat-locking tobacco product to form a first airflow trajectory.

10. The heat-locking tobacco product according to claim 8, characterized in that, A second air inlet is formed between the support portion and the first port portion. The second port portion is disassembled to form a second air outlet. The second air inlet and the second air outlet are connected to form a second airflow trajectory.

11. The heat-locking tobacco product according to claim 8, characterized in that, The support portion has a third air inlet and a third air outlet on two sides perpendicular to the heating element. The third air inlet is closer to the base than the third air outlet, and the third air inlet and the third air outlet are connected to form a third airflow trajectory.

12. The heat-locking tobacco product according to claim 8, characterized in that, The support portion has a fourth air inlet and a fourth air outlet on its two sides perpendicular to the heating element. The fourth air inlet and the fourth air outlet are both located in the middle of the folding unit, and the fourth air inlet and the fourth air outlet are connected to form a fourth airflow trajectory.

13. The heat-locking tobacco product according to claim 8, characterized in that, A fifth air inlet is provided on one side of the support portion perpendicular to the heating element. The fifth air inlet is close to the base. A fifth air outlet is formed between the other side of the support portion perpendicular to the heating element and the second port portion. The fifth air inlet and the fifth air outlet are connected to form a fifth airflow trajectory.

14. The heat-locking tobacco product according to claim 8, characterized in that, An air intake channel is formed on the base, and the first port and the second port are disassembled to form a sixth airflow trajectory.

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