Aerosol-generating device

Abstract

The invention provides an aerosol generating device which comprises a heating unit, an aerosol generating substrate and a packaging body, the heating unit comprises a base and a heating body, and the tail end of the heating body is installed on the base; the aerosol generating matrixes are arranged on the two sides of the heating body respectively, the packaging body wraps the aerosol generating matrixes and the periphery of the heating unit, a channel is formed in the base, an air inlet is formed in the end, away from the aerosol generating matrixes, of the channel, and an air outlet is formed in the end, away from the base, of the aerosol generating matrixes. Gaps in the channel and the aerosol generating matrix are communicated with the air inlet and the air outlet, and the two ends of the packaging body are opened or closed to enable the air inlet and the air outlet to be communicated with or isolated from the outside. According to the structural arrangement, moisture in air is prevented from being absorbed when the aerosol product is not used for a long time, and the original taste of the aerosol product is prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of aerosol generation technology, and more particularly to an aerosol generation apparatus. Background Technology

[0002] In the field of novel tobacco products, commonly used stick-shaped aerosol products incorporate a large amount of hygroscopic alcohols, such as glycerol, to meet the requirement of producing visible smoke at temperatures far below the ignition point. When these stick-shaped aerosol products are sold, a certain quantity is sealed within a cigarette box. If the aerosol product is not consumed quickly after opening the box, the remaining sticks will absorb a large amount of moisture from the air, leading to a significant change in taste. Summary of the Invention

[0003] This invention provides an aerosol generating device to solve the technical problem in the prior art that aerosol products easily absorb moisture from the air, resulting in a significant change in their taste.

[0004] To achieve the above objectives, the technical solution provided by the present invention is as follows: This invention provides an aerosol generating device, including a heating unit, an aerosol generating matrix, and a packaging body. The heating unit includes a base and a heating element, with one end of the heating element mounted on the base. The aerosol generating matrix is ​​disposed on both sides of the heating element. The packaging body wraps around the aerosol generating matrix and the heating unit. A channel is formed inside the base, with an air inlet at the end of the channel away from the aerosol generating matrix and an air outlet at the end of the aerosol generating matrix away from the base. A gap in the channel and the aerosol generating matrix connects the air inlet and the air outlet. Both ends of the packaging body can be opened or closed to allow the air inlet and the air outlet to communicate with or be isolated from the outside.

[0005] Furthermore, the packaging body includes a support portion and a sealing portion. The support portion wraps around the aerosol generating matrix and the heating unit. The sealing portions are respectively provided at both ends of the support portion to seal the air inlet and the air outlet. The sealing portion is detachably connected to the support portion.

[0006] Furthermore, a plurality of discontinuous holes are formed at the connection between the sealing part and the support part, and the discontinuous holes are arranged at intervals to separate the sealing part from the support part.

[0007] Furthermore, the packaging body includes multiple connecting units, which are spaced apart; the connecting units connect the sealing part and the supporting part, and the connecting units can be removed to separate the sealing part and the supporting part.

[0008] Furthermore, the area of ​​the air outlet is 3 to 4 times the cross-sectional area of ​​the channel.

[0009] Furthermore, the cross-sectional area of ​​the channel is greater than or equal to 3 mm². 2 .

[0010] Furthermore, there are multiple channels, and these channels are arranged at intervals within the base.

[0011] Furthermore, the heating element is arranged in a planar shape, the aerosol generating matrix is ​​in the shape of a strip, and the aerosol generating matrix is ​​stacked vertically and / or horizontally on the heating element.

[0012] Furthermore, the surface roughness of the aerosol generating matrix is ​​0.07 mm to 0.1 mm.

[0013] Furthermore, the aerosol generating matrix includes a first strip, which is formed by multiple folds.

[0014] Furthermore, the aerosol generating matrix includes a plurality of second strips, which are laid flat and stacked to form the aerosol generating matrix.

[0015] Furthermore, the thickness of the heating element is 0.08 mm to 0.5 mm.

[0016] Furthermore, the heating unit also includes two electrodes, which are disposed on the heating element at the end away from the aerosol generating matrix for electrical connection to an external power source.

[0017] Furthermore, the material of the packaging body is selected from one or more of paper, plant fiber, resin film, and plastic film.

[0018] The aerosol generating device provided by this invention features a packaging body surrounding the aerosol generating matrix and heating unit. Both ends of the packaging body can be opened or closed. During storage, the two ends of the packaging body are closed to isolate the internal aerosol generating matrix from the outside environment, preventing it from absorbing moisture from the air. During use, the two ends of the packaging body are opened, allowing the air inlet and outlet to connect with the outside. This allows gas to enter the packaging body through the air inlet during suction, pass through channels and gaps in the aerosol generating matrix, and then enter the body through the air outlet. This structural design of the aerosol generating device prevents it from absorbing moisture from the air when not in use for extended periods, thus preserving the original taste of the aerosol product. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the aerosol generating device in the embodiments of this application; Figure 2 This is a schematic diagram of the aerosol generating device from another angle in an embodiment of this application; Figure 3 for Figure 1 A sectional view; Figure 4 for Figure 1 Another sectional view; Figure 5 This is a schematic diagram of the packaging body in the aerosol generating device according to an embodiment of this application; Figure 6 This is another structural schematic diagram of the packaging body in the aerosol generating device according to an embodiment of this application; Figure 7 This is a schematic diagram of a folded structure of the aerosol generation matrix in an embodiment of this application; Figure 8 This is a schematic diagram of another folding structure of the aerosol generation matrix in an embodiment of this application; Figure 9 This is a schematic diagram of a further folding structure of the aerosol generation matrix in an embodiment of this application; Figure 10 This is a schematic diagram of the layered structure of the aerosol generation matrix in the embodiments of this application.

[0021] Figure label: 10. Aerosol generating matrix; 11. Gas outlet; 12. First strip; 13. Second strip; 20. Packaging body; 21. Support part; 22. Sealing part; 23. Discontinuous hole; 24. Connecting unit; 30. Base; 31. Channel; 32. Air inlet; 40. Heating element; 50. Electrode. Detailed Implementation

[0022] 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.

[0023] It should be noted that when a component is referred to as being "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 being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Reference Figures 1 to 4This application provides an aerosol generating device, including a heating unit, an aerosol generating matrix 10, and a packaging body 20. The heating unit includes a base 30 and a heating element 40, with the end of the heating element 40 mounted on the base 30. The aerosol generating matrix 10 is respectively disposed on both sides of the heating element 40. The packaging body 20 wraps around the aerosol generating matrix 10 and the heating unit. A channel 31 is formed in the base 30. An air inlet 32 ​​is formed at one end of the channel 31 away from the aerosol generating matrix 10, and an air outlet 11 is formed at the other end of the aerosol generating matrix 10 away from the base 30. The gap in the channel 31 and the aerosol generating matrix 10 connects the air inlet 32 ​​and the air outlet 11. The two ends of the packaging body 20 are opened or closed to allow the air inlet 32 ​​and the air outlet 11 to communicate with or be isolated from the outside.

[0028] In this embodiment, the packaging body 20 can be a continuous packaging material or a discontinuous packaging material connected by adhesive or other means. The starting and ending ends of the packaging body 20 have a fitting area, the width of which is not less than 0.5 mm. The aerosol generating matrix 10 and the heating unit are both covered by the packaging body 20. When the aerosol generating device is not in use, both ends of the packaging body 20 are closed, and the packaging body 20 covers the aerosol generating matrix 10 and the heating unit to prevent the aerosol generating matrix 10 from communicating with the outside. When the aerosol generating device is in use, both ends of the packaging body 20 are open, and the packaging body 20 covers the aerosol generating matrix 10 and the heating unit, allowing the aerosol generating matrix 10 to communicate with the outside and facilitating suction.

[0029] In this embodiment, a channel 31 is provided within the base 30, with an air inlet 32 ​​formed at one end of the channel 31. Gaps are formed within the aerosol generating matrix 10 to allow gas to pass through; an air outlet 11 is formed at the end of the aerosol generating matrix 10. That is, the channel 31 within the base 30 and the gaps in the aerosol generating matrix 10 allow the air inlet 32 ​​and the air outlet 11 to communicate. When using the aerosol generating device, both ends of the packaging body 20 are opened, allowing the air inlet 32 ​​and the air outlet 11 to communicate with the outside. During suction, gas enters the packaging body 20 from the air inlet 32, passes through the channel 31 and the gaps in the aerosol generating matrix 10, and then enters the body through the air outlet 11. The channel 31 is used to deliver airflow to the aerosol generating matrix 10 via the air inlet 32, and the gaps in the aerosol generating matrix 10 allow the airflow to carry away the generated aerosol along the surface of the generating matrix.

[0030] The structure of the aforementioned aerosol generating device prevents it from absorbing moisture from the air when it is not used for a long time, thus preserving the original taste of the aerosol products.

[0031] In some embodiments, the packaging body 20 includes a support portion 21 and a sealing portion 22. The support portion 21 is wrapped around the aerosol generating matrix 10 and the heating unit. The two ends of the support portion 21 are respectively provided with sealing portions 22 to seal the air inlet 32 ​​and the air outlet 11. The sealing portion 22 is detachably connected to the support portion 21.

[0032] In the embodiments of this application, reference is made to Figure 1 , Figure 2 , Figure 5 and Figure 6 The sealing part 22 seals the air inlet 32 ​​and the air outlet 11. The closure and opening of both ends of the packaging body 20 are achieved by connecting and disconnecting the sealing part 22 and the support part 21. Various detachable connection structures can exist between the support part 21 and the sealing part 22, and this application does not impose any limitations. The materials of the support part 21 and the sealing part 22 can be selected from one or more of paper, plant fibers, resin films, and plastic films.

[0033] In some embodiments, the two ends of the support portion 21 are respectively bonded to the sealing portion 22. (Refer to...) Figure 1 , Figure 2 The sealing part 22 encapsulates both ends of the aerosol generating matrix 10 and the heating unit, and the support part 21 surrounds them. At this time, air cannot pass through the aerosol generating device.

[0034] In this embodiment, the sealing part 22 is bonded to the support part 21 by an adhesive backing. The adhesive backing can be a food-grade adhesive that is resistant to 200 degrees Celsius and does not release any substances, a platinum-catalyzed high-temperature resistant silicone adhesive, or a platinum-catalyzed high-temperature resistant silicone adhesive. To ensure the sealing performance between the sealing part 22 and the support part 21, the size of the sealing part 22 can be larger than the size of the aerosol generating matrix 10 and the two ends of the heating unit. The excess portion is bent towards the support part 21 and then bonded to it.

[0035] In some embodiments, a plurality of discontinuous holes 23 are formed at the connection between the sealing portion 22 and the support portion 21, and the discontinuous holes 23 are spaced apart to separate the sealing portion 22 from the support portion 21. (Refer to...) Figure 5 The multiple discontinuous holes 23 at the connection between the sealing part 22 and the support part 21 allow for easier separation of the sealing part 22 and the support part 21, thereby enabling both ends of the packaging body 20 to be in an open state. Preferably, the multiple discontinuous holes 23 are arranged in an array.

[0036] In other embodiments, the packaging body 20 includes a plurality of connecting units 24, which are spaced apart; the connecting units 24 connect the sealing portion 22 and the support portion 21, and the connecting units 24 are removed to separate the sealing portion 22 and the support portion 21. (See also...) Figure 6Multiple connecting units 24 are disposed between the sealing part 22 and the supporting part 21. When using the aerosol generating device, the connecting units 24 can be easily separated, thereby opening both ends of the packaging body 20. The multiple connecting units 24 are arranged at intervals, making it easier to remove the connecting units 24.

[0037] In some embodiments, the area of ​​the air outlet 11 is 3 to 4 times the cross-sectional area of ​​the channel 31. (Refer to...) Figure 1 and Figure 3 One end of channel 31 is an air inlet 32, meaning the area of ​​outlet 11 must be larger than the area of ​​inlet 32 ​​to reduce internal resistance during aerosol generation. Furthermore, when the area of ​​outlet 11 is 3 to 4 times the cross-sectional area of ​​channel 31, a Venturi effect based on Bernoulli's equation can be achieved, reducing the temperature of the aerosol generation matrix 10. In other embodiments, the cross-sectional area of ​​channel 31 is greater than or equal to 3 mm². 2 .

[0038] Furthermore, there are multiple channels 31, which are spaced apart within the base 30. In this embodiment, multiple channels 31 are provided within the base 30, allowing gas to pass through the inlet 32 ​​and through the gaps in the aerosol generating matrix 10 to reach the outlet 11. The arrangement of multiple channels 31 reduces the overall airflow resistance of the airflow channel 31. The resistance of the airflow channel 31 is set between 300 Pa and 1200 Pa.

[0039] In some embodiments, the heating element 40 is arranged in a planar shape, and the aerosol generating matrix 10 is in the shape of a strip, with the aerosol generating matrix 10 stacked vertically and / or horizontally on the heating element 40.

[0040] In this embodiment, the heating element 40 is planar, and the aerosol generating matrix 10 is stacked on both sides of the heating element 40. "Strip-like" refers to a continuous shape with a certain width and length; the width of the strip is much greater than the width of the filamentous or strip-like elongated generating matrix commonly used in the prior art. Stacking includes two cases: one is that multiple layers of aerosol generating matrix 10 are stacked from bottom to top; the other is that a longer aerosol generating matrix 10 is folded, both of which can form a tobacco strip matching the size of the heating element 40. Vertical stacking means that after folding or stacking, the plane of each layer of aerosol generating matrix 10 is perpendicular to the plane of the heating element 40. Horizontal stacking means that after folding or stacking, the plane of each layer of aerosol generating matrix 10 is parallel to the plane of the heating element 40.

[0041] Specifically, the aerosol generating matrix 10 includes a first strip 12, which is formed by multiple folds. (Refer to...) Figures 7 to 9 , Figure 7This is a schematic diagram of the structure where the first strip 12 is horizontally folded on both sides of the heating element 40. Figure 9 This is a schematic diagram of the structure in which the first strip 12 is folded vertically on both sides of the heating element 40. Figure 8 This refers to the case where the first strip 12 is folded horizontally on one side of the heating element 40 and vertically on the other side. Figures 7 to 9 All folds in the text can be transformed into layers.

[0042] In other embodiments, the aerosol generating matrix 10 includes a plurality of second strips 13, which are laid flat and stacked to form the aerosol generating matrix 10. (Refer to...) Figure 10 Multiple second strip-shaped bodies 13 are laid flat and stacked together in sequence, i.e., layered.

[0043] In this embodiment, the structure of the aerosol generating matrix 10 on both sides of the heating element 40 can be both set as a first strip 12, or both set as a second strip 13, or one side can be set as a first strip 12 and the other side as a second strip 13.

[0044] The surface of the stacked multilayer aerosol generating matrix 10 has a certain roughness, so that even after folding or stacking, the gaps and roughness between adjacent matrix layers can still ensure that gas can pass through smoothly. Specifically, the surface roughness of the aerosol generating matrix 10 is 0.07 mm to 0.1 mm.

[0045] In some embodiments, the thickness of the heating element 40 is 0.08 mm to 0.5 mm. In the embodiments of this application, the heating element 40 is configured as a thin sheet, preferably 0.08 mm to 0.1 mm thick. It does not require special mechanical strength. The heating element 40 is supported by the aerosol matrix 10, forming a high overall strength and preventing deformation or breakage. The heating element 40 is made of a metallic material with a Curie temperature greater than 400°C, such as iron-chromium-aluminum, ferritic, or austenitic stainless steel. It also includes a thin sheet of insulating material (such as zirconium oxide, alumina, etc.) coated on the surface of the metallic material, and printed resistive circuitry.

[0046] In some embodiments, the heating unit further includes two electrodes 50, which are disposed on the end of the heating element 40 away from the aerosol generating matrix 10 for electrical connection to an external power source. (Refer to...) Figure 4 The end of the heating element 40 is fixed inside the base 30, and two thin sheet termination ends are provided at the end of the heating element 40 to form electrodes 50; the rest of the heating element 40 is placed inside the aerosol generating matrix 10.

[0047] When the aerosol generating device of this embodiment is placed into the aerosol appliance, the sealing part 22 is removed, and the aerosol appliance can form a circuit connection with the aerosol generating device through the connecting electrode 50. When the aerosol appliance supplies power to the heating element 40, the heating element 40 and the aerosol generating matrix 10 exchange heat to form an aerosol. When the user inhales, the airflow enters the aerosol generating matrix 10 through the air inlet 32 ​​and carries the aerosol out through the air outlet 11. The airflow direction is referenced. Figure 3 Arrow direction.

[0048] In this embodiment, the dimensions of the base 30 in the width and thickness directions of the aerosol product are substantially the same as those of the aerosol generating matrix 10. Both the cross-sectional shape of the base 30 and the cross-sectional shape of the aerosol generating matrix 10 can be rectangular. The end of the heating element 40 is inserted into the center position of the base 30 in the thickness direction, meaning that the central axis of the base 30 coincides with the central axis of the heating element 40.

[0049] The method for manufacturing an aerosol generating device according to an embodiment of this application includes the following steps: cutting tobacco raw materials into thin sheets into strips of aerosol generating matrix 10 of the required size; fixing a heating element 40 onto a base 30; attaching the aerosol generating matrix 10 to both sides of the heating element 40; wrapping the support portion 21 around the base 30 and the aerosol generating matrix 10; and then sealing the two end faces with a sealing portion 22 to form an aerosol generating device resembling a cuboid. The length of the aerosol generating device is preferably 15mm to 40mm, the width is preferably 10mm to 35mm, and the thickness is preferably 3mm to 8mm. The cross-section of the aerosol generating device along its length is approximately rectangular, as shown in the reference... Figure 3 It is allowed to have rounded corners with a rounded corner value greater than 0.1mm, or the four sides of the rectangle are large arcs close to straight lines and have rounded corners with a rounded corner value of 0.2mm to 2mm.

[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. An aerosol generating device, characterized in that: The invention includes a heating unit, an aerosol generating matrix, and a packaging body. The heating unit includes a base and a heating element. The end of the heating element is mounted on the base, and the aerosol generating matrix is ​​disposed on both sides of the heating element. The packaging body is wrapped around the aerosol generating matrix and the heating unit. A channel is formed inside the base. An air inlet is formed at the end of the channel away from the aerosol generating matrix, and an air outlet is formed at the end of the aerosol generating matrix away from the base. The gap in the channel and the aerosol generating matrix connects the air inlet and the air outlet. Both ends of the packaging body are opened or closed to allow the air inlet and the air outlet to communicate with or be isolated from the outside.

2. The aerosol generating apparatus according to claim 1, characterized in that, The packaging body includes a support part and a sealing part. The support part wraps around the aerosol generating matrix and the heating unit. The sealing part is provided at both ends of the support part to seal the air inlet and the air outlet. The sealing part is detachably connected to the support part.

3. The aerosol generating apparatus according to claim 2, characterized in that, Multiple discontinuous holes are formed at the connection between the sealing part and the support part, and the discontinuous holes are arranged at intervals to separate the sealing part from the support part.

4. The aerosol generating apparatus according to claim 2, characterized in that, The packaging body includes multiple connecting units, which are spaced apart; the connecting units connect the sealing part and the supporting part, and the connecting units can be removed to separate the sealing part and the supporting part.

5. The aerosol generating apparatus according to any one of claims 1 to 4, characterized in that, The area of ​​the air outlet is 3 to 4 times the cross-sectional area of ​​the channel.

6. The aerosol generating apparatus according to any one of claims 1 to 4, characterized in that, The cross-sectional area of ​​the channel is greater than or equal to 3 mm. 2 .

7. The aerosol generating apparatus according to claim 5, characterized in that, The number of channels is multiple, and the multiple channels are arranged at intervals within the base.

8. The aerosol generating apparatus according to any one of claims 1 to 4, characterized in that, The heating element is arranged in a planar shape, and the aerosol generating matrix is ​​in the shape of a strip. The aerosol generating matrix is ​​stacked vertically and / or horizontally on the heating element.

9. The aerosol generating apparatus according to claim 8, characterized in that, The surface roughness of the aerosol generating matrix is ​​0.07 mm to 0.1 mm.

10. The aerosol generating apparatus according to claim 8, characterized in that, The aerosol generating matrix includes a first strip, which is formed by multiple folds.

11. The aerosol generating apparatus according to claim 8, characterized in that, The aerosol generating matrix includes a plurality of second strips, which are laid flat and stacked to form the aerosol generating matrix.

12. The aerosol generating apparatus according to any one of claims 1 to 4, characterized in that, The thickness of the heating element is 0.08mm to 0.5mm.

13. The aerosol generating apparatus according to any one of claims 1 to 4, characterized in that, The heating unit also includes two electrodes, which are disposed on the heating element at the end away from the aerosol generating matrix for electrical connection to an external power source.

14. The aerosol generating apparatus according to any one of claims 1 to 4, characterized in that, The packaging material is selected from one or more of paper, plant fiber, resin film, and plastic film.

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