Aerosol product and aerosol generating system

Abstract

The present application relates to an aerosol product and an aerosol generating system. The aerosol product comprises a protective layer, an aerosol matrix and fixing members arranged in the protective layer, and a heating member limitedly fixed in a matrix cavity by the fixing members, wherein the heating member is used for performing heating under the action of an electromagnetic field so as to heat the aerosol matrix and generate aerosol, and ventilation channels for communicating the interior of the matrix cavity with the outside are formed in the fixing members or between the fixing members and the protective layer.

Description

Aerosol products and aerosol generating systems

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese utility model patent application filed on December 14, 2023, with application number 202323438038.0 and entitled "Aerosol Product and Aerosol Generating System," the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of aerosol technology, and in particular to an aerosol product and an aerosol generating system. Background Art

[0004] Currently, most aerosol products on the market are used as consumables in aerosol generating devices. These are typically installed on the device, with the heating element inserted into or wrapped around the aerosol product. The heating element directly contacts and heats the aerosol product, generating aerosol without combustion. Because the heating element is incorporated into the aerosol generating device, this increases the device's configuration cost and makes its use and maintenance more complex. For example, residue generated during the heating process can easily accumulate on the heating element, necessitating regular cleaning and maintenance. Summary of the Invention

[0005] The main technical problem solved by the present application is to provide an aerosol product and an aerosol generating system, wherein the aerosol product has self-heating function to achieve the purpose of fully and evenly heating the atomized aerosol generating matrix.

[0006] One embodiment provides an aerosol product, comprising a protective layer, an aerosol matrix, a fixing element, and a heating element; the aerosol matrix is ​​disposed in a matrix cavity surrounded by the protective layer;

[0007] The fixing member is disposed within the protective layer and connected to the heating element, and is used to confine at least a portion of the heating element within the matrix cavity so that the heating element contacts the aerosol matrix; the heating element is used to generate heat under the action of an electromagnetic field to heat the aerosol matrix;

[0008] The fixing member has an air passage connecting the inside of the matrix cavity with the outside, and / or an air passage connecting the inside of the matrix cavity with the outside is formed between the fixing member and the protective layer.

[0009] In one embodiment, the fixing member has a recessed portion provided in the middle of the fixing member, and one end of the heating element is embedded in the recessed portion.

[0010] In one embodiment, the heating element is in the form of a sheet, the recessed portion is a strip-shaped groove extending radially along the matrix cavity, and the heating element is inserted into the strip-shaped groove.

[0011] In one embodiment, the heating element includes a plurality of heating bodies arranged around the axis of the matrix cavity, the heating bodies extending along the axial direction of the matrix cavity and inserted into the aerosol matrix, and the plurality of heating bodies are spaced apart in the circumferential direction of the matrix cavity.

[0012] In one embodiment, the number of the heating elements is set to an odd number greater than or equal to 3.

[0013] In one embodiment, the ratio of the area of ​​the circle enclosed by the heating element to the cross-sectional area of ​​the matrix cavity is 1:1-1:1.5.

[0014] In one embodiment, the heating element further includes an insulating shaping ring, and the heating element is fixed to the insulating shaping ring; the recessed portion is an annular groove, and the insulating shaping ring is inserted into the annular groove.

[0015] In one embodiment, a filter element is further included, and the filter element is arranged at an end of the protective layer away from the aerosol matrix.

[0016] In one embodiment, the length of the heating element in the axial direction of the matrix cavity is 10-20 mm.

[0017] In one embodiment, the number of the fixing members is set to two; in the axial direction of the matrix cavity, the two fixing members are respectively arranged at opposite ends of the matrix cavity, and the two ends of the heating element are respectively connected to the corresponding fixing members.

[0018] In one embodiment, a limiting member is further included, and the limiting member includes a breathable membrane structure or a porous structure; in the axial direction of the matrix cavity, the limiting member and the fixing member are respectively arranged at opposite ends of the matrix cavity.

[0019] According to a second aspect, an embodiment provides an aerosol generating system, comprising a smoking device and the aerosol product according to the first aspect, wherein the smoking device comprises a coil, and the coil is used to apply an alternating magnetic field to the heating element.

[0020] The aerosol product according to the above embodiment includes a protective layer, an aerosol matrix disposed within a matrix cavity surrounded by the protective layer, a fixing member disposed within the protective layer, and a heating element constrained and fixed within the matrix cavity by the fixing member; wherein the heating element is used to generate heat under the action of an electromagnetic field to heat the aerosol matrix and generate an aerosol; an air duct is formed on the fixing member or between the fixing member and the protective layer to connect the interior and exterior of the matrix cavity. First, by arranging the heating element within the product, the product is endowed with the function of self-heating, which can solve a series of problems caused by the application of existing products; second, by selecting and arranging the heating element, the interior of the product can be constructed into a structural form that can achieve modes such as central heating and circumferential heating; third, by using the fixing member to constrain the positional relationship and distribution form between the heating element and the aerosol matrix, the overall structural stability of the product can be enhanced, facilitating the production and molding of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of the outline structure of an aerosol product according to an embodiment.

[0022] FIG2 is a schematic diagram of the structural decomposition of an aerosol product according to an embodiment, omitting the aerosol matrix.

[0023] FIG3 is a schematic diagram of the cross-sectional structure of a smoke-generating section in an aerosol product according to an embodiment (I).

[0024] FIG4 is a schematic diagram (II) of the cross-sectional structure of the smoke-generating section in an aerosol product according to an embodiment.

[0025] FIG5 is a schematic diagram of the three-dimensional structure of a heating element in an aerosol product according to an embodiment.

[0026] FIG6 is a schematic diagram of the three-dimensional structure of a fixing member in an aerosol product according to an embodiment.

[0027] FIG7 is a schematic diagram of the structural distribution of the airway in an aerosol product according to an embodiment (I).

[0028] FIG8 is a schematic diagram (II) showing the structural distribution of the air duct in an aerosol product according to an embodiment.

[0029] FIG9 is a schematic diagram (III) showing the structural distribution of the airway in an aerosol product according to an embodiment.

[0030] FIG10 is a schematic diagram of the cross-sectional structure of an aerosol product according to an embodiment.

[0031] FIG11 is a schematic diagram of the structural decomposition of the aerosol product in FIG10 omitting the aerosol matrix.

[0032] FIG. 12 is a perspective structural diagram of the aerosol product in FIG. 10 .

[0033] FIG13 is a schematic structural diagram of an aerosol generating system according to an embodiment.

[0034] In the picture:

[0035] 10. Protective layer; 10A. Matrix cavity; 10B. Cooling cavity; 10C. Filter cavity; 20. Aerosol matrix; 30. Heating element; 31. Heating body; 32. Insulating shaping ring; 40. Fixing element; 40A. Air duct; 40B. Abutting surface; 40C. Air guide surface; 40D. Recessed portion; 41. First fixing element; 42. Second fixing element; 50. Filter element; 60. Smoking device; 61. Coil; 70. Aerosol product. DETAILED DESCRIPTION

[0036] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0037] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0038] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0039] Referring to Figures 1 to 9, an embodiment of the present application provides an aerosol product, including a protective layer 10, an aerosol matrix 20, a heating element 30 and a fixing element 40; wherein the heating element 30 includes a plurality of heating elements 31, and the plurality of heating elements 31 are confined and fixed in the protective layer 10 by the fixing element 40 in a roughly cage-shaped structure; a detailed description is given below.

[0040] Referring to Figures 1 and 2, the protective layer 10 can be a hollow tubular structure made of a material with high heat resistance and mechanical strength (such as paper material specially used for cigarettes, polyamide material), such as a straight paper tube. On the one hand, the protective layer 10 allows the aerosol product to have a preset and stable contour or structural shape. On the other hand, it provides structural assembly space for the aerosol matrix 20, the heating element 30, and the fixing element 30, so as to play a role in structural protection, heat insulation, and shaping in the aerosol product.

[0041] For ease of distinction and description, the internal tubular space of protective layer 10 is divided or partitioned along its length into a matrix cavity 10A, a cooling cavity 10B, and a filtration cavity 10C, which are sequentially connected and distributed. It is understood that matrix cavity 10A, cooling cavity 10B, and filtration cavity 10C are equivalent to the structural space enclosed by protective layer 10. It should be noted that the bold dashed lines in Figure 2 represent the boundaries between adjacent cavities.

[0042] Among them, the matrix cavity 10A is mainly used to accommodate the aerosol matrix 20 and the heating element 30, etc., and it can also be understood that the structural space occupied by the aerosol matrix 20, etc. in the protective layer 10 is the matrix cavity 10A; the cooling cavity 10B is mainly used to cool the high-temperature aerosol smoke generated by the aerosol matrix 20. The cooling cavity 10B can be a completely vacant structural space in the protective layer 10, or a cooling medium can be set in the cooling cavity 10B; the filter cavity 10C is provided with a filter element 50 (such as filter cotton, activated carbon, ceramic particles, etc.), that is, the structural space occupied by the filter element 50 in the protective layer 10 is the filter cavity 10C, and the filter cavity 10C can be used to filter harmful substances or impurities in the aerosol smoke.

[0043] In some embodiments, the cooling cavity 10B and the filtering cavity 10C may be omitted, or one of the cooling cavity 10B and the filtering cavity 10C may be selectively provided; for example, the internal space of the protective layer 10 is the matrix cavity 10A, and based on the structural combination of the protective layer 10 and the aerosol matrix 20, etc., the aerosol product may be constructed into a cigarette cartridge structure; for another example, by selectively providing the cooling cavity 10B or the filtering cavity 10C, the aerosol product may be constructed into a cigarette structure having a cooling function or a filtering function.

[0044] In some embodiments, the filter element 50 may also be a functional component relatively independent of the protective layer 10 or a functional component used in conjunction with the product; it is understood that by arranging the filter element 50 at the end of the protective layer 10 away from the aerosol matrix 20 (for example, a plug-in connection, a peripheral wrapping connection, etc.), the product can have a filtering function or filter the aerosol output by the product.

[0045] Please refer to Figures 2 and 4. The aerosol matrix 20 refers to related material that can generate or release aerosol for use when heated to a preset temperature without burning, including but not limited to medicinal materials, spices, tobacco, etc.; the aerosol matrix 20 can be filled in the matrix cavity 10A in the form of fillers such as particles, wires, and strips (for example, tobacco shreds, tobacco leaves, tobacco particles, etc.), or it can be a paste material body with a fixed shape such as tobacco paste set in the matrix cavity 10A.

[0046] Referring to Figures 2 to 5 , the heating element 30 is primarily used to heat the atomized aerosol matrix 20 during use of the aerosol product, generating an aerosol without combustion. The multiple heating elements 31 within the heating element 30 are made of materials capable of generating eddy current heating in an alternating magnetic field, such as ferromagnetic pure metals or alloy conductors like iron, or inorganic non-metallic conductors like ferromagnetized ceramics and carbon fibers. The heating elements 31 are structures (e.g., strips or columns) with a predetermined length along the axis of the matrix cavity 10A. The multiple heating elements 31 are spaced apart within the protective layer 10 around the axis of the matrix cavity 10A, with at least a portion of the heating elements 31 located within the matrix cavity 10A.

[0047] On the one hand, with the help of multiple heating elements 31, the overall outline of the heating element 30 is presented inside the aerosol product in a cage-like structure; on the other hand, the length of the heating element 31 can span the entire aerosol matrix 20 or span most of the aerosol matrix 20 (for example, in some embodiments, the length of the heating element 31 can be controlled to be 10 mm-20 mm), so that the aerosol matrix 20 and the heating element 31 maintain contact as much as possible, thereby ensuring that the aerosol matrix 20 can be heated as fully as possible.

[0048] In some embodiments, the ratio of the area of ​​the circle surrounded by the plurality of heating elements 31 to the cross-sectional area of ​​the matrix cavity 10A is set to 1:1 to 1:1.5.

[0049] For example, referring to FIG3 , in a reference plane perpendicular to the axis of the matrix cavity 10, the projections of the plurality of heating elements 31 in the reference plane are arranged roughly along a circular trajectory, or the projections of the heating elements 31 can be connected to form a circle, and the ratio of the area of ​​the circle to the projected area of ​​the matrix cavity 10A in the reference plane is 1:1 (i.e., equal).

[0050] Thus, it is equivalent to that the multiple heating elements 31 are arranged around the periphery of the aerosol matrix 20 in a manner as close to or as close to or as close to the inner peripheral wall of the attached protective layer 10 (i.e., the peripheral wall of the matrix cavity 10A) as possible; the heat generated by the heating elements 31 can be gradually transferred from the periphery to the center of the aerosol matrix 20, forming a circumferential heating effect on the aerosol matrix 20.

[0051] For example, referring to FIG. 4 , the area of ​​the circle enclosed by the plurality of heating elements 31 is set to be smaller than the cross-sectional area of ​​the matrix cavity 10A: for example, the ratio of the area of ​​the circle formed by the projections of the heating elements 31 on the reference plane to the projection area of ​​the matrix cavity 10A on the reference plane is 1:1.5.

[0052] In this case, the heating element 31 is equivalent to being arranged inside the aerosol matrix 20 along its length direction (or the axis direction of the matrix cavity 10A), and the heat generated by the heating element 31 can be transferred toward the periphery of the aerosol matrix 20 or toward the axial center area of ​​the aerosol matrix 20, thereby forming a circumferential heating and central heating effect on the aerosol matrix 20.

[0053] In some embodiments, the plurality of heating elements 31 may be arranged in a multi-layer cage-like configuration or spaced and evenly arranged within the protective layer 10 based on the contour of the matrix cavity 10A, thereby fully and evenly heating the aerosol matrix 20 .

[0054] Referring to Figures 1 to 4 and 6 to 9, the fixing member 40 is disposed within the protective layer 10, for example, in a manner that at least partially abuts the inner circumferential wall of the protective layer 10; the heating element 30 (specifically, the heating body 31) is connected to the fixing member 40, for example, by snapping, abutting, or plugging; at the same time, the fixing member 40 has an air passage 40A extending through the matrix cavity 10 along the axis direction; or after the fixing member 40 is installed in the protective layer 10, an air passage 40A is formed between the fixing member 40 and the protective layer 10.

[0055] In some embodiments, all or part of the fixing member 40 (for example, the part in contact and connected with the heating element 30) can be made of high-temperature resistant non-metallic materials, such as polytetrafluoroethylene, ceramics, etc., to prevent the fixing member 40 from heating up due to eddy currents in an alternating electromagnetic field environment.

[0056] On the one hand, by utilizing the connection relationship between the fixing member 40 and the heating element 30, not only can at least a portion of the heating element 30 be restricted and fixed in the matrix cavity 10A with the help of the fixing member 40, but also the multiple heating elements 30 can maintain the cylindrical structure surrounded by them in the protective layer 10; on the other hand, by using the air duct 10A to connect the inside and outside of the matrix cavity 10A, structural support can be provided for aerosol smoke or aerosol smoke to be discharged from the matrix cavity 10A with the airflow.

[0057] It should be noted that the interior and exterior of the matrix cavity 10A are relative to the protective layer 10. The interior of the matrix cavity 10A refers to the structural space of the matrix cavity 10A itself, and the exterior of the matrix cavity 10A can be the structural space of the cooling cavity 10B or the filtering cavity 10C connected thereto, or can be the external space of the protective layer 10.

[0058] In one embodiment, referring to Figures 2 to 4, there are two fixing members 40. The two fixing members 40 are arranged at opposite ends of the substrate cavity 10A along the axial direction of the substrate cavity 10A and are connected to the heating element 30 (for example, the heating element 31). For ease of distinction and description, the fixing member 40 disposed in the protective layer 10 and located at one end of the substrate cavity 10A close to the cooling cavity 10B or located in the cooling cavity 10B is defined as a first fixing member 41, and the fixing member 40 disposed in the protective layer 10 and located in the end of the substrate cavity 10A away from the cooling cavity 10B is defined as a second fixing member 42.

[0059] By using the first fixing member 41 and the second fixing member 42 to form a restraining structure at opposite ends of the matrix cavity 10A, the heating element 30 (specifically, the heating element 31) and the aerosol matrix 20 can be restrained and fixed within the matrix cavity 10A. This not only allows the heating element 31 to maintain contact with the aerosol matrix 20, but also prevents the heating element 30 and the aerosol matrix 20 from escaping from the protective layer 10 (for example, preventing particles of the aerosol matrix 20 from leaking to the outside of the protective layer 10 or leaking into the cooling cavity 10B).

[0060] In some embodiments, a limiting member (not shown in the figure) may also be provided on the protective layer 10. The limiting member cooperates with one of the first fixing member 41 and the second fixing member 42 to constrain the heating element 30 and the aerosol matrix 20 to the matrix cavity 10A; that is, either the first fixing member 41 or the second fixing member 42 can be provided.

[0061] For example, the limiting member may be a breathable membrane structure provided at one end of the substrate cavity 10A away from the cooling cavity 10B (e.g., the lower end of the substrate cavity 10A or the protective layer 10). By cooperating with the first fixing member 41, the aerosol substrate 20 and the heating element 30 may be confined within the substrate cavity 10A in a manner similar to encapsulation, while ensuring that the substrate cavity 10A portion of the aerosol product (which may be understood as the smoking section of the aerosol product) has good air permeability or ventilation performance.

[0062] For another example, the limiting member may be a breathable membrane structure or a porous structure provided at one end of the substrate cavity 10A close to the cooling cavity 10B or provided in the cooling cavity 10B. Based on the cooperation between the limiting member and the second fixing member 42, the aerosol substrate 20 and the heating element 30 can be constrained within the substrate cavity 10A, and the smoking section of the aerosol product can be ensured to have good air permeability.

[0063] Alternatively, in some embodiments, the fixing member 40 and the limiting member disposed at the end of the matrix cavity 10A away from the cooling cavity 10B may be omitted.

[0064] First, by integrating or fusing the heating element 30 into the structural system of the aerosol product, the product is able to self-heat and automatically generate aerosols in an alternating electromagnetic field environment, thereby eliminating the need to configure a heating element for an aerosol generating device (such as a heat-not-burn smoking device) used in conjunction with the aerosol product. This not only creates conditions for reducing the configuration, use, and maintenance costs of the aerosol device, but also reduces pollution to the aerosol generating device.

[0065] Secondly, the fixing member 40 is used to constrain the heating element 30 and the aerosol matrix 20 within the protective layer 10. This not only prevents the aerosol matrix 20 or the heating element 30 from escaping from the matrix cavity 10A, thereby establishing a stable contact relationship between the aerosol matrix 20 and the heating element 30, so as to achieve sufficient heating and atomization of the aerosol matrix 20; it also facilitates the processing and molding of the entire aerosol product, effectively enhancing the structural stability of the aerosol product (specifically, the smoking section).

[0066] Third, by means of the cage-like structure formed by multiple heating elements 31 in the matrix cavity 10A, the heating elements 31 can be evenly distributed at different positions of the aerosol 20, which can effectively increase the contact area between the aerosol matrix 20 and the heating element 30, and is conducive to uniform heating of the atomized aerosol matrix 20; at the same time, by adjusting the number and arrangement of the heating elements 31, the interior of the aerosol product can be constructed into different structural forms or heating modes such as central heating and circumferential heating to meet different application requirements.

[0067] In one embodiment, referring to FIG. 5 and in combination with FIG. 2 to FIG. 4 , the number of heating elements 31 in the heating element 30 is set to an odd number greater than or equal to 3, such as 3, 5, 7, or other greater odd numbers; an odd number of heating elements 31 are evenly and spaced apart around the axis of the matrix cavity 10A. It can also be understood that an odd number of heating elements 31 are evenly spaced apart along the circumference of the aerosol product.

[0068] According to the principle of electromagnetic induction, compared with an even number of heating elements 31, which is prone to forming overlapping magnetic fields and causing abnormally high temperatures in local areas inside the product, an odd number of heating elements 31 arranged at circumferential intervals along the aerosol product can play the role of triangularly dividing the magnetic lines of force of the electromagnetic field, thereby making the thermal field distribution inside the protective layer 10 or the matrix cavity 10A more uniform, which is conducive to sufficient and uniform heating and atomization of the aerosol matrix 20.

[0069] In one embodiment, please refer to Figure 5, the heating element 30 also includes an insulating shaping ring 32, which is roughly an annular structure arranged around the axis of the matrix cavity 10A, such as an O-shape, a regular polygon or other geometric shapes; multiple heating elements 31 are fixedly connected to the insulating shaping ring 32, for example, the two ends of the heating element 31 in the axis direction of the matrix cavity 10A are respectively fixedly connected to an insulating shaping ring 32 at the corresponding end; for example, the middle position of the length of multiple heating elements 31 is respectively fixedly connected to the insulating shaping ring 32.

[0070] Thus, the heating element 30 can be assembled into a cage-like structure with the aid of the insulating shaping ring 32, so that the heating element 30 can be assembled as an integrated structure within the protective layer 10. The insulating shaping ring 32 is then used to connect the structure to the fixing member 40, allowing for convenient and quick processing and molding of the aerosol product. In specific implementations, the insulating shaping ring 32 can be an annular structure made of a material different from the heating element 31, such as an insulating material with good thermal insulation properties. The thermal insulation properties of the insulating shaping ring 32 can prevent the heat generated by the heating element 31 from being transferred to the fixing member 40 and melting the fixing member 40.

[0071] In one embodiment, referring to FIG6 in conjunction with FIG2 to FIG4 , the fixing member 40 has a recessed portion 40D for connecting to the heating element 30 to fix the relative position between the heating element 30 and the fixing member 40. The recessed portion 40D is provided in the middle of the fixing member 40, and one end of the heating element 30 (e.g., the insulating ring 32) is embedded in the recessed portion 40D; for example, the one end of the heating element 30 is inserted and fixed in the recessed portion 40D by an interference fit.

[0072] By utilizing the structural matching relationship between the recessed portion 40D and the end portion of the heating element 30 (e.g., the insulating shaping ring 32), the heating element 30 is restricted and fixed, thereby ensuring that the position of the heating element 30 inside the aerosol product will not shift during the production and use of the aerosol product, thereby facilitating the structural stability of the aerosol product (especially the smoking section) so as to uniformly and fully heat the atomized aerosol matrix 20.

[0073] For example, please refer to Figure 6. The recessed portion 40D of the first fixing member 41 can adopt an annular groove that is compatible with the insulating shaping ring 42 (it should be noted that the recessed portion 40D of the second fixing member 42 can be structurally arranged with reference to the recessed portion 40D of the first fixing member 41). The annular groove is compatible with the contour shape of the insulating shaping ring 32; when the heating element 30 and the fixing member 40 are combined and assembled, the insulating shaping ring 32 can be inserted into the annular groove.

[0074] When manufacturing an aerosol product, the heating element 30 and the first fixing member 41 can be pre-assembled, and then the combination of the two can be inserted into the protective layer 10 so that the heating element 31 is located in the matrix cavity 10A; then, the aerosol matrix 20 is filled into the matrix cavity 10A; finally, the second fixing member 42 is inserted into the protective layer 10, and the recessed portion 40D of the second fixing member 42 is used to finally confine and fix the heating element 30 and the aerosol matrix 20 in the matrix cavity 10A.

[0075] For example, as shown in Figure 3, when multiple heating elements 31 are arranged around the periphery of the aerosol matrix 20, the recessed portion 40D can be an annular step structure formed on the outer peripheral surface of the fixing member 40 (i.e., the first fixing member 41 and / or the second fixing member 42), and the insulating shaping ring 32 can be placed on the annular step structure to achieve a structural connection between the fixing member 40 and the heating element 30; at this time, the heating element 30 as a whole can be restricted and fixed in the matrix cavity 10A in the form of being tightly attached to the inner peripheral wall of the protective layer 10, so as to achieve circumferential heating of the aerosol matrix 20.

[0076] In some embodiments, the insulating shaping ring 32 is omitted from the heating element 30, and the recessed portion 40D of the second fixing member 42 adopts a perforated structure that corresponds one-to-one with the end of the heating element 31 (correspondingly, the recessed portion 40D of the first fixing member 41 can adopt a perforated structure, a blind hole structure, or an annular groove). When manufacturing an aerosol product, the first fixing member 41 can first be inserted and fixed in the protective layer 10 (for example, at the end of the matrix cavity 10A close to the cooling cavity 10B) in the form of an interference fit, and then the aerosol matrix 20 is filled in the matrix cavity 10A, and then the second fixing member 42 is inserted and fixed to the end of the matrix cavity 10A away from the cooling cavity 10B. Finally, with the help of the perforated structure of the second fixing member 42, the heating elements 31 are inserted one by one into the matrix cavity 10B, so that the end of the heating element 31 abuts the first fixing member 41 or is fixed to the recessed portion 40D of the first fixing member 41; thereby, the combined assembly forms an aerosol product.

[0077] Of course, based on the number and specific structure of the fixing members 40, or the matching relationship between the fixing members 40 and the limiting members, the heating element 30 can also be restricted and fixed in the matrix cavity 10A by other appropriate methods, and finally formed into an aerosol product, which will not be elaborated here.

[0078] In one embodiment, referring to Figures 3 and 7 , the fixing member 40 (specifically, the first fixing member 41 or the second fixing member 42) is generally a columnar structure whose outer peripheral wall abuts against the inner peripheral wall of the protective layer 10 (or the wall of the matrix cavity 10A). In other words, the outer peripheral surface of the fixing member 40 serves as the abutment surface 40B, which surrounds the geometric centerline of the fixing member 40. The fixing member 40 is disposed within the protective layer 10 with the abutment surface 40B abutting against the inner peripheral surface of the protective layer 10. In some embodiments, the fixing member 40 can be inserted into the protective layer 10 using an interference fit.

[0079] Correspondingly, the air channel 40A is provided through the fixing member 40 along the axis direction (i.e., axial direction) of the matrix cavity 10A or the geometric center line direction of the fixing member 40 (for ease of distinction and description, the air channel 40A of this structure is defined as a first air channel). The number of first air channels can be set to multiple, and the multiple first air channels can be evenly arranged on the fixing member 40; at the same time, the recessed portion 40D can be a groove structure (e.g., an annular groove) or a perforated structure provided through at least one axial end surface of the fixing member 40, or can be an annular step structure provided on the outer peripheral surface of the fixing member 40.

[0080] Thus, the fixing member 40 not only constrains the heating element 30 within the matrix cavity 10A, but also acts as a kind of encapsulation for the aerosol matrix 20, preventing it from leaking out of the matrix cavity 10A. Furthermore, the first airway provides structural support for the aerosol mist to escape from the matrix cavity 10A.

[0081] In one embodiment, referring to Figures 4, 6, 8 and 9, the fixing member 40 (specifically, the first fixing member 41 or the second fixing member 42) can also be configured as a gear-shaped structure as a whole, so that after the fixing member 40 is assembled in the protective layer 10, an air duct 40A is formed between the fixing member 40 and the protective layer 10.

[0082] In some embodiments, the outer peripheral surface of the fixing member 40 can be divided into a contact surface 40B and an air-guiding surface 40C, and the contact surface 40B and the air-guiding surface 40C are connected end to end in an alternating distribution around the geometric center line of the fixing member 40; wherein, the fixing member 40 is arranged in the protective layer 10 in the form of the contact surface 40B contacting the inner peripheral surface of the protective layer 10, and there is a preset distance between the air-guiding surface 40C and the inner peripheral surface of the protective layer 10, so that by utilizing the structural form in which the contact surface 40B and the inner peripheral surface of the protective layer 10 contact each other, a plurality of air channels 40A distributed around the axial center line of the matrix cavity 10A can be formed between the air-guiding surface 40C and the inner peripheral surface of the protective layer 10 (for the convenience of distinction and description, the air channels 40A of this structural form are defined as second air channels).

[0083] In some embodiments, a first air channel may be provided at the fixing member 4 at the same time, and the first air channel and the second air channel cooperate to ensure that the air flow can evenly enter and exit the matrix cavity 10A.

[0084] Please refer to Figures 10 to 12 in combination with Figures 6 to 9. The embodiment of the present application also provides an aerosol product, which is mainly different from the aerosol product of the aforementioned embodiment in that the heating element 30 is a single sheet-like structure or a columnar structure, and is restricted and fixed in the protective layer 10 by the fixing member 40.

[0085] In some embodiments, the heating element 30 is a sheet-like structure, a solid columnar structure, or a hollow tubular columnar structure having a predetermined length along the axis of the matrix cavity 10A. The heating element 30 is arranged substantially along the axis of the matrix cavity 10A. A recessed portion 40D is provided on the first fixing member 41 or the second fixing member 42 to match the end structure of the heating element 30. For example, the recessed portion 40D of the first fixing member 41 is a strip-shaped groove located at the center of the first fixing member 41 and extending radially along the matrix cavity 10A. The corresponding end of the heating element 30 is inserted into the strip-shaped groove.

[0086] The heating element 30 is restrained and fixed within the substrate cavity 10A by the fixing member 40 or the combination of the fixing member 40 and the limiting member. Based on the specific structural configuration of the heating element 30, the aerosol substrate 20 can be heated and atomized using methods such as central heating and circumferential heating. In some embodiments, the length of the sheet-shaped heating element 30 can be controlled to 10-20 mm, so that the heating element 30 can span the entire length or a majority of the aerosol substrate 20 (or the smoking section of the product) to fully heat the aerosol substrate 20.

[0087] As for other structural structures of the aerosol product and the technical effects produced, please refer to the aforementioned embodiments and will not be described in detail here.

[0088] Please refer to Figure 13 in combination with Figures 1 to 12. An embodiment of the present application further provides an aerosol generating system, including a smoking device 60 and an aerosol product 70 of any of the aforementioned embodiments; wherein, the smoking device 60 can refer to the existing technology, for example, the smoking device 60 can be constructed by a combination of a shell, a battery cell and a controller arranged in the shell, and a control switch exposed to the shell; the smoking device 60 has a receiving position (such as a jack structure), and a coil 61 is provided inside the smoking device 60, and the coil 61 can be arranged around the receiving position.

[0089] During use, at least a portion of the aerosol product 70 (for example, the smoking section of the aerosol product 70) can be inserted into the receiving position so that the aerosol product 70 is in the alternating magnetic field environment provided by the coil 61, thereby causing the heating element 30 in the aerosol product 70 to generate eddy currents due to the action of the alternating electromagnetic field, thereby heating the atomized aerosol matrix 20, so that the aerosol product produces or generates aerosol that can be used.

[0090] With respect to the aerosol product 70, when the air inlet is provided on the smoking device 60, during inhalation, air can enter from the bottom of the product (i.e., the end of the matrix cavity 10A away from the cooling cavity 10B or the filter element 50), mix with the aerosol generated in the matrix cavity 10A due to the heating of the aerosol matrix 20, enter the cooling cavity 10B to be cooled, and be filtered while flowing through the filter cavity 10C, so that the aerosol is finally inhaled.

[0091] If the air inlet is provided in the aerosol product 70 (e.g., in the cooling cavity 10B), during inhalation, air can enter from the side of the aerosol product 70, mix with the aerosol generated in the matrix cavity 10A, and after being cooled in the cooling cavity 10B, flow out of the filter cavity 10C and ultimately be inhaled. Alternatively, air inlets can be provided in both the smoking device 60 and the aerosol product 70 to enhance the cooling effect of the aerosol.

Claims

1. An aerosol product, characterized in that: It comprises a protective layer, an aerosol matrix, a fixing element and a heating element; the aerosol matrix is ​​arranged in a matrix cavity surrounded by the protective layer; The fixing element is arranged in the protective layer and connected to the heating element, and is used to confine at least part of the heating element in the matrix cavity so that the heating element contacts the aerosol matrix; the heating element is used to generate heat under the action of an electromagnetic field to heat the aerosol matrix; The fixing member has an air passage connecting the inside of the matrix cavity with the outside, and / or an air passage connecting the inside of the matrix cavity with the outside is formed between the fixing member and the protective layer.

2. The aerosol product according to claim 1, characterized in that The fixing member has a recessed portion arranged in the middle of the fixing member, and one end of the heating element is embedded in the recessed portion.

3. The aerosol product according to claim 2, characterized in that The heating element is in the form of a sheet, the recessed portion is a strip-shaped groove extending along the radial direction of the matrix cavity, and the heating element is inserted into the strip-shaped groove.

4. The aerosol product according to claim 2, characterized in that The heating element comprises a plurality of heating elements arranged around the axis of the matrix cavity, the heating elements extending along the axial direction of the matrix cavity and inserted into the aerosol matrix, and the plurality of heating elements are arranged at intervals in the circumferential direction of the matrix cavity.

5. The aerosol product according to claim 4, characterized in that The number of the heating elements is set to an odd number greater than or equal to 3.

6. The aerosol product according to claim 4, characterized in that The ratio of the area of ​​the circle surrounded by the heating element to the cross-sectional area of ​​the matrix cavity is 1:1-1:1.

5.

7. The aerosol product according to claim 4, characterized in that The heating element further comprises an insulating shaping ring, and the heating element is fixed to the insulating shaping ring; the recessed portion is an annular groove, and the insulating shaping ring is inserted into the annular groove.

8. The aerosol product according to claim 1, wherein It also includes a filter element, which is arranged at one end of the protective layer away from the aerosol matrix.

9. The aerosol product according to claim 1, wherein The length of the heating element in the axial direction of the matrix cavity is 10-20 mm.

10. The aerosol product according to any one of claims 1 to 9, characterized in that The number of the fixing members is set to two; in the axial direction of the matrix cavity, the two fixing members are respectively arranged at two opposite ends of the matrix cavity, and the two ends of the heating element are respectively connected to the corresponding fixing members.

11. The aerosol product according to any one of claims 1 to 9, characterized in that It also includes a limiting member, which includes a breathable membrane structure or a porous structure; in the axial direction of the matrix cavity, the limiting member and the fixing member are respectively arranged at two opposite ends of the matrix cavity.

12. An aerosol generating system, characterized in that: The invention comprises a smoking article and an aerosol product according to any one of claims 1 to 11, wherein the smoking article comprises a coil, and the coil is used for applying an alternating magnetic field to the heating element.

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