Aerosol product and aerosol generating device thereof

Abstract

The invention provides an aerosol product and an aerosol generating device thereof. The aerosol product comprises an aerosol generating piece and a blocking piece which are arranged adjacently; the aerosol generating part comprises an aerosol generating substrate and a receptor, and the receptor can generate heat energy in a magnetic field to heat the aerosol generating substrate; the barrier includes a carrier and magnetic particles dispersed in the carrier. According to the aerosol product, the blocking piece containing the magnetic particles is arranged in the aerosol product, and the recognition rate of the aerosol product through smoking set recognition operation can be increased.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol product and an aerosol generating device thereof. Background Art

[0002] Electromagnetic induction heating of aerosol products is one of the mainstream heating methods of heat-not-burn aerosol generating devices. Aerosol generating devices usually include power supply batteries and induction coils. When in use, the aerosol product is inserted into the preset position of the aerosol generating device. The battery supplies power to the induction coil to generate an alternating magnetic field. The receptors in the aerosol product can generate eddy currents in the alternating magnetic field. The eddy currents cause the atoms in the receptors to move irregularly at high speed. The atoms collide and rub against each other to generate heat energy, thereby heating the aerosol generating matrix.

[0003] In the related art, the heat-not-burn aerosol generating devices on the market are usually provided with an identification operation. During the identification operation, the magnetic excitation system of the heat-not-burn aerosol generating device will identify the magnetic intensity generated by the receptor in the energized coil. When the magnetic intensity generated by the receptor reaches a preset threshold, the magnetic excitation system will pass the identification operation; when the magnetic intensity generated by the receptor is lower than the preset threshold, the magnetic excitation system will determine that the identification operation fails, and the aerosol product cannot be used after being inserted into the aerosol generating device.

[0004] However, during the preparation, assembly, transportation and consumer use of the receptors, due to processing errors, assembly errors and the like, after the aerosol product is inserted into the aerosol generating device, the magnetic intensity generated in the energized coil of the receptor is lower than the preset magnetic intensity threshold, and the magnetic excitation system will determine that the recognition operation has failed. The aerosol product cannot be used after being inserted into the aerosol generating device, and the probability of the aerosol product passing the recognition operation is low, affecting the user experience. Summary of the invention

[0005] The embodiments of the present application provide an aerosol product and an aerosol generating device thereof, aiming to solve the aforementioned technical problems.

[0006] In a first aspect, an embodiment of the present application provides an aerosol product, the aerosol product comprising an aerosol generating member and a blocking member disposed adjacently;

[0007] The aerosol generating member comprises an aerosol generating substrate and a susceptor, wherein the susceptor is capable of generating heat energy in a magnetic field to heat the aerosol generating substrate;

[0008] The barrier includes a carrier and magnetic particles dispersed in the carrier.

[0009] In one embodiment, the mass ratio of the magnetic particles to the receptors is (1.2-4.2):1; and / or

[0010] The mass of the magnetic particles is 39.2 mg-137.2 mg.

[0011] In one embodiment, the magnetic particles include at least one of iron, ferrite, iron alloy, modified graphite, modified graphene, cobalt, cobalt oxide, cobalt alloy, nickel, nickel oxide, and nickel alloy; and / or

[0012] The material of the sensor includes at least one of Tenets alloy, silicon steel, Permalloy, iron-aluminum alloy, Sendai alloy, iron-cobalt alloy, amorphous soft magnetic material, nanocrystalline soft magnetic material, ferrite, and soft magnetic composite material.

[0013] In one embodiment, the average particle size of the magnetic particles is 1 nm-25000 nm; and / or

[0014] The magnetic particles have a positive temperature resistivity; and / or

[0015] The Curie temperature of the susceptor is 300°C-500°C; and / or

[0016] The Curie temperature of the magnetic particles is 300°C-1000°C; and / or

[0017] The length of the blocking member in the axial direction of the aerosol product is 3 mm to 10 mm; and / or

[0018] The length of the blocking member in the axial direction of the aerosol product is L1, the axial length of the aerosol product is L2, 1:3≤L1 / L2≤1:10; and / or

[0019] The length of the blocking member in the axial direction of the aerosol article is L1, the length of the aerosol generating substrate in the axial direction of the aerosol article is L3, and 1:1≤L1 / L3≤1:5.

[0020] In one embodiment, the magnetic particles are uniformly distributed in the barrier.

[0021] In one embodiment, the concentration of the magnetic particles on a side of the barrier close to the aerosol generating element is greater than the concentration of the magnetic particles on a side of the barrier far from the aerosol generating element.

[0022] In one embodiment, the material of the carrier includes a heat insulating material; and / or

[0023] The specific heat capacity of the carrier is 1.0 J / (kg·°C)-2.5 J / (kg·°C); and / or

[0024] The density of the carrier is 0.5 g / cm 3 -2.5g / cm 3 .

[0025] In one embodiment, the material of the carrier includes at least one of silica gel, fluororubber, cellulose acetate, polypropylene resin, and wood material.

[0026] In one embodiment, the blocking member does not contact the susceptor.

[0027] In one embodiment, the distance between the blocking member and the susceptor is greater than 0 and less than or equal to 10 mm.

[0028] In one embodiment, the aerosol product further comprises a tube body, a filter and a cooling element, wherein the filter, the cooling element, the aerosol generating element and the blocking element are located in the tube body, and the filter, the cooling element and the aerosol generating element are sequentially arranged along the axial direction of the tube body;

[0029] The blocking member is located on a side of the aerosol generating member close to the cooling member, or the blocking member is located on a side of the aerosol generating member away from the cooling member, or the number of the blocking members is two, and the two blocking members are distributed on both sides of the aerosol generating member along the axial direction of the tube body.

[0030] In a second aspect, an embodiment of the present application provides an aerosol generating device, comprising an induction coil and the aerosol product as described above;

[0031] The induction coil is capable of generating a magnetic field, and the susceptor and the magnetic particles are located in the magnetic field.

[0032] Beneficial effects of the embodiments of the present application:

[0033] (1) The aerosol product includes an aerosol generating element and a blocking element arranged adjacent to each other; the aerosol generating element includes an aerosol generating matrix and a receptor, and the receptor can generate heat energy in a magnetic field to heat the aerosol generating matrix; the blocking element includes a carrier and magnetic particles dispersed in the carrier. The magnetic particles can be magnetized in the magnetic field of the coil, thereby becoming an additional magnetic source. The magnetic field generated by the magnetic particles and the magnetic field generated by the induction coil can be coupled to each other, thereby enhancing the overall magnetism of the aerosol product. The magnetic particles can enable the receptor to generate a preset magnetic strength in the magnetic field after the magnetism is enhanced even when there are processing errors, assembly errors, etc., thereby increasing the probability of the aerosol product passing the identification operation, reducing the processing accuracy, assembly accuracy and position accuracy requirements for the receptor, and improving the user experience.

[0034] (2) The magnetic particles themselves are very fine particles, the magnetic field loop through which the magnetic lines of force pass through the magnetic particles is short, the eddy current effect in the magnetic particles is very weak, and the magnetic particles do not heat up significantly, so that the magnetic particles can significantly improve the overall magnetism of the aerosol product. However, the magnetic particles themselves do not cause obvious eddy current heating effect, which can make the aerosol product have a strong power input and convert most of the power input into the sensor. Under the condition of the same power input, the time it takes for the sensor to reach the expected stable operating temperature can be shortened, and the heating speed of the sensor can be increased, so that the aerosol product can reach the preset heating temperature in a faster time, effectively improving the user experience.

[0035] (3) Magnetic particles improve the heating speed of the sensor and help the sensor achieve more stable temperature control. First, the sensor is in a competitive relationship in the magnetic field. The magnetic particles can disperse the input power of the system, making the power ratio adjustment process on the sensor smoother and reducing the temperature overshoot of the sensor. Secondly, due to the small size, high magnetic permeability and high resistivity of the magnetic particles, the magnetic lines of force pass through the magnetic particles in a short loop, the eddy current heating effect of the magnetic particles is weak, and the magnetic particles themselves generate limited heat, which can reduce the loop and dissipation of the magnetic flux in the air and reduce the loss of magnetic energy. The magnetic particles can build more internal magnetic circuits while reducing the energy loss of the system, stabilizing the stability of the feedback signal of the inductance change, which is conducive to the stable temperature control of the magnetic excitation system. In addition, the magnetic particles can absorb part of the magnetic field and play a shielding role similar to wave absorption, reducing the interference of the magnetic field on nearby circuit board modules and other components. At the same time, the magnetic particles themselves have limited heat generation, which can reduce the thermal impact of the blocking parts on nearby components, thereby making the magnetic field coupling, heating and operation of nearby components of the entire system more stable, which is further conducive to the sensor to achieve more stable temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic diagram of the structure of an aerosol product provided in one embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of an aerosol product provided in another embodiment of the present application;

[0039] Figure 3 A schematic diagram of the structure of an aerosol product provided in another embodiment of the present application;

[0040] Figure 4 A magnetic field distribution diagram of an induction coil provided in one embodiment of the present application;

[0041] Figure 5 for Figure 4 The magnetic field strength distribution diagram of the induction coil in;

[0042] Figure 6 A magnetization intensity curve diagram showing the magnetization intensity of magnetic particles as a function of temperature provided in one embodiment of the present application;

[0043] Figure 7 This is a SEM image of a cross-section of the barrier member of Example 1 of the present application magnified 35 times;

[0044] Figure 8 This is a SEM image of a cross-section of the barrier member of Example 1 of the present application magnified 1000 times.

[0045] Reference numerals:

[0046] 10. Aerosol product; 1. Aerosol generating element; 11. Aerosol generating matrix; 12. Receptor; 2. Blocking element; 21. Carrier; 22. Magnetic particles; 3. Tube body; 4. Filter; 5. Cooling element. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0048] In the related art, the following common processing errors and assembly errors are prone to occur during the preparation, assembly, transportation and consumer use of the receptors: material segregation during the smelting of magnetic metals leads to uneven receptor material, which ultimately makes the receptors cut from certain areas have weak magnetism in the magnetic field; or, during the annealing of the magnetic metal, stress is not fully released, which ultimately makes the receptor weak in the magnetic field; or, during the rolling or cutting process of the receptor, the thickness or length of the molded receptor is smaller than expected, resulting in weak magnetism of the receptor in the magnetic field; or, when embedded in the aerosol matrix, the receptor is not located at the preset position of the aerosol matrix, and when the aerosol is When the aerosol product is located in the induction coil, the sensor is not located in the stronger area of ​​the solenoid magnetic field distribution, which eventually weakens the strength of the coupling between the sensor and the magnetic excitation system, resulting in weak magnetism of the sensor in the magnetic field; or, when cooperating with the magnetic coil, the aerosol product is not inserted in the expected position in the induction coil, which also weakens the strength of the coupling between the sensor and the magnetic excitation system; or, the traditional sensor generally includes an iron metal layer for heating, a magnetic material layer with a Curie temperature of about 500°C and a protective layer. In order to simplify the manufacturing process of the sensor and reduce the thickness of the sensor, the multi-layer structure of the sensor is made into a single-layer structure, which may also reduce the recognition pass rate of the sensor. Due to the above-mentioned processing errors, assembly errors and other reasons, after the aerosol product is inserted into the aerosol generating device, the magnetic strength generated by the sensor in the energized coil is lower than the preset value, and the magnetic excitation system will determine that the recognition operation fails, and the aerosol product cannot continue to be used. The probability of the aerosol product passing the recognition operation is low, which affects the user experience and needs further improvement.

[0049] To solve the above problems, refer to Figures 1 to 3 , the present application provides an aerosol product 10, the aerosol product 10 includes an aerosol generating element 1 and a blocking element 2 which are arranged adjacent to each other; the aerosol generating element 1 includes an aerosol generating matrix 11 and a receptor 12, the receptor 12 can generate heat energy in a magnetic field to heat the aerosol generating matrix 11; the blocking element 2 includes a carrier 21 and magnetic particles 22 dispersed in the carrier 21. In this embodiment, the induction coil will generate a magnetic field after being energized. Usually, the magnetic field in the central area where the central axis of the inner side of the induction coil is located is the strongest. In the direction of the central axis and radial direction of the induction coil, as the distance from the central area increases, the magnetic field strength generated by the induction coil will gradually decrease. For example, refer to Figure 4 , Figure 4The magnetic field distribution simulation diagram of the induction coil is shown in the figure. The COMSOL Multiphysics software is used to simulate and analyze the magnetic field generated by the induction coil in the smoking device model. The model uses a solenoid coil, and there is no magnetic flux concentrator around the coil. The inner diameter of the coil is 9 mm, and the effective height is 14 mm. Here, the effective height is the vertical distance between the upper and lower ends of the coil turns along the coil axis, that is, Figure 4 The overall magnetic field distribution in the section corresponding to the BC segment in a plane containing the central axis of the coil is as follows: Figure 4 Further, based on Figure 4 ,by Figure 4 The plane corresponding to point A is the zero point, and the magnetic field intensity distribution diagram on the central axis is drawn upward in the 24mm arc length segment (AD segment). Figure 5 is the magnetic field intensity distribution diagram on the central axis, from Figure 5 It can be seen that the magnetic field intensity in the effective height section BC on the central axis presents a smooth single peak characteristic, and reaches the maximum value at a distance of 12 mm from the plane where A is located (i.e., the center corresponding to the BC section), and the maximum value of the magnetic field intensity is close to 0.0068 Tesla. The center corresponding to the BC section is the central area of ​​the induction coil, and the overall magnetic field intensity in the central area is the highest. As the distance from the central area increases, the magnetic field intensity generated by the induction coil will gradually decrease. In addition, in addition to the large magnetic field inside the induction coil, the AB section area and the CD section area outside the induction coil still have a certain magnetic field intensity distribution, and the magnetic field in these areas can be used to enhance the detection and identification of the aerosol product 10. Generally, the aerosol generating element 1 is arranged in the central area of ​​the induction coil; therefore, the blocking element 2 is arranged adjacent to the aerosol generating element 1, and the blocking element 2 can be located near the central area of ​​the induction coil, so that the blocking element 2 can fall into a space with a strong magnetic field intensity, and the magnetic particles 22 can be effectively magnetized in the magnetic field, thereby becoming an additional magnetic source, and the magnetic field generated by the magnetic particles 22 can be coupled with the magnetic field generated by the induction coil, so that the overall magnetism of the aerosol product 10 is enhanced. The magnetic particles 22 enable the receptor 12 to still generate a preset magnetic strength in the magnetic field after the magnetism is enhanced even when processing errors, assembly errors, etc. occur, thereby increasing the probability of the aerosol product 10 passing the identification operation, reducing the processing accuracy, assembly accuracy and position accuracy requirements for the receptor 12, and improving the user experience.

[0050] In this embodiment, the magnetic particles 22 can effectively shorten the time for the receptor 12 to reach the expected stable working temperature, improve the heating speed of the receptor 12, and enable the aerosol product 10 to reach the preset heating temperature in a faster time while increasing the probability of the aerosol product 10 passing the identification operation, thereby effectively improving the user experience. The magnetic particles 22 themselves are very fine particles, the magnetic field loop through which the magnetic lines of force pass through the magnetic particles 22 is short, the eddy current effect in the magnetic particles 22 is very weak, and the heating of the magnetic particles 22 is not obvious, so that the magnetic particles 22 can significantly improve the overall magnetism of the aerosol product 10, but the magnetic particles 22 themselves do not cause obvious eddy current heating effect, so that the aerosol product 10 can have a strong power input, and most of the power input is converted to the receptor 12, which can further improve the heating speed of the receptor 12.

[0051] In this embodiment, the magnetic particles 22 can improve the probability of the aerosol product 10 passing the identification operation and the heating speed of the receptor 12, while also enabling the receptor 12 to achieve more stable temperature control. On the one hand, the magnetic particles 22 and the receptor 12 are in a competitive relationship in the magnetic field. The magnetic particles 22 can disperse the input power of the system, making the power ratio adjustment process on the receptor 12 smoother, reducing the temperature overshoot of the receptor 12, and preventing the receptor 12 from producing harmful substances and local excessive carbonization in the process of heating the aerosol generating matrix 11 due to excessive temperature. On the other hand, compared with the larger block magnetic parts, the size and volume of the magnetic particles 22 are smaller, the magnetic permeability is higher, and the resistivity is larger. The loop of the magnetic lines passing through the magnetic particles 22 is shorter, the eddy current heating effect of the magnetic particles 22 is weaker, and the heat generation of the magnetic particles 22 is limited, which can reduce the loss of magnetic energy. The magnetic particles 22 can build more internal magnetic circuits while reducing the energy loss of the system, and improve the stability of the feedback signal of the inductance change, which is conducive to the stable temperature control of the magnetic excitation system. On the third aspect, the magnetic particles 22 can absorb a portion of the magnetic field and play a shielding role similar to wave absorption, reducing the interference of the magnetic field on nearby components such as circuit board modules. At the same time, the magnetic particles 22 themselves have limited heat generation, which can reduce the thermal impact of the blocking member 2 on nearby components, thereby making the magnetic field coupling, heating and operation of nearby components of the entire system more stable, further facilitating the sensor 12 to achieve more stable temperature control. On the fourth aspect, the magnetic particles 22 significantly improve the overall magnetism of the aerosol product 10 as the temperature changes, thereby reducing the amplitude of the change in the magnetic permeability of the sensor 12 (the ratio between the absolute value of the change in the magnetic permeability of the sensor 12 with temperature and the overall magnetism of the aerosol product 10), and the amplitude of the change in the magnetic permeability of the sensor 12 is in a more gentle state, thereby maintaining the stable coupling between the aerosol product 10 and the magnetic excitation system. On the fifth aspect, the magnetic strength of the magnetic particles 22 changes very little with temperature, and the magnetization intensity of the magnetic particles changes with temperature (MT curve) is as shown in the figure. Figure 6 As shown. The MT curve is drawn by the results obtained by Quantum Design's SQUID-VSM tester at a frequency of 40 Hz and a scanning speed of 15 K / min. When the temperature changes from 20°C to 150°C, the magnetic strength of the magnetic particles 22 changes by about 1.4%, while the temperature of the magnetic particles 22 themselves does not rise significantly. Therefore, when the magnetic particles 22 are coupled to the induction coil in the magnetic field, the magnetic strength of the magnetic particles 22 remains basically unchanged, and the magnetic field coupling between the magnetic particles 22 and the induction coil is relatively stable, so that the entire aerosol product 10 has a relatively balanced magnetic change as the temperature of the receptor 12 changes, which is conducive to more stable temperature control of the receptor 12.

[0052] In this embodiment, the shapes of the aerosol generating member 1 and the blocking member 2 are not limited, and the shapes of the aerosol generating member 1 and the blocking member 2 can be cylindrical, rectangular, truncated cone or other shapes; the number of the blocking member 2 is also not limited, and the number of the blocking member 2 can be one, two or more. The position of the blocking member 2 is also not limited, and the blocking member 2 can be distributed at any end of the aerosol generating member 1 along the axis direction of the aerosol generating member 1, and the blocking member 2 can also be distributed at both ends of the aerosol generating member 1 along the axis direction of the aerosol generating member 1. The blocking member 2 can be in direct contact with the aerosol generating member 1, or can be spaced apart from the aerosol generating member 1.

[0053] In one embodiment, the mass ratio of the magnetic particles 22 to the susceptor 12 is (1.2-4.2): 1. Optionally, the mass ratio of the magnetic particles 22 to the susceptor 12 can be any one of 1.2:1, 1.5:1, 1.8:1, 2.0:1, 2.5:1, 2.8:1, 3.0:1, 3.5:1, 4.0:1, 4.2:1, etc., or a range between any two of them, which is not limited here. In this embodiment, if the mass ratio of the magnetic particles 22 to the receptor 12 is too large, firstly, the material cost of the magnetic particles 22 is easily increased; secondly, the overall magnetism of the magnetic particles 22 is easily higher than that of the receptor 12, thereby greatly weakening the coupling between the receptor 12 and the magnetic excitation system, affecting the dominant position of the coupling between the receptor 12 and the magnetic excitation coil, and being unfavorable for the receptor 12 to generate the preset magnetic strength and eddy current effect in the magnetic field, thereby reducing the probability of the aerosol product 10 passing the identification operation; in addition, if the mass ratio of the magnetic particles 22 to the receptor 12 is too large, it is easy to cause the mixing and dispersion of the magnetic particles 22 in the raw materials in the process of preparing the barrier 2, and the hardness of the prepared barrier 2 is too high, which is not conducive to the demoulding, cutting and assembly of the barrier 2. If the mass ratio of the magnetic particles 22 to the receptor 12 is too small, it is easy to cause the effect of the magnetic particles 22 on increasing the overall magnetism of the aerosol product 10 to be unsatisfactory, and reduce the magnetic flux concentration effect and wave absorption effect of the magnetic particles 22 on the magnetic field.

[0054] In one embodiment, the mass of the magnetic particles 22 is 39.2 mg-137.2 mg. Optionally, the mass of the magnetic particles 22 can be any one of 39.2 mg, 40.0 mg, 60.0 mg, 80.0 mg, 100.0 mg, 110.0 mg, 120.0 mg, 130.0 mg, 137.2 mg, etc., or a range between any two thereof, which is not limited here. In this embodiment, if the mass of the magnetic particles 22 is too large, firstly, the material cost of the magnetic particles 22 is likely to increase; secondly, the overall magnetism of the magnetic particles 22 is likely to be higher than the magnetism of the receptor 12, thereby greatly weakening the coupling between the receptor 12 and the magnetic excitation system, affecting the dominant position of the coupling between the receptor 12 and the magnetic excitation coil, and being unfavorable for the receptor 12 to generate a preset magnetic strength and eddy current effect in the magnetic field; in addition, if the mass of the magnetic particles 22 is too large, it is likely to cause the mixing and dispersion of the magnetic particles 22 in the raw materials in the process of preparing the barrier 2 to be uneven, and the hardness of the prepared barrier 2 is too high, which is not conducive to the demoulding, cutting and assembly of the barrier 2. If the mass of the magnetic particles 22 is too small, it is likely to cause the effect of the magnetic particles 22 on increasing the overall magnetism of the aerosol product 10 to be unsatisfactory, and reduce the magnetic flux concentration effect and wave absorption effect of the magnetic particles 22 on the magnetic field.

[0055] In one embodiment, the material type of the magnetic particles 22 is not limited, and the magnetic particles 22 may include at least one of iron, ferrite, iron alloy, modified graphite, modified graphene, cobalt, cobalt oxide, cobalt alloy, nickel, nickel oxide, and nickel alloy. Preferably, the magnetic particles 22 include at least one of ferrite, Permalloy, and Tenesz alloy.

[0056] In one embodiment, the Curie temperature of the magnetic particles 22 is 300° C.-1000° C. Optionally, the Curie temperature of the magnetic particles 22 may be any one of 300° C., 400° C., 500° C., 600° C., 700° C., 800° C., 900° C., 1000° C., etc., or a range between any two thereof, which is not limited herein.

[0057] In one embodiment, the length of the blocking member 2 in the axial direction of the aerosol product 10 is 3 mm-10 mm. Optionally, the length of the blocking member 2 in the axial direction of the aerosol product 10 can be any one of 3 mm, 5 mm, 7 mm, 9 mm, 10 mm, etc. or a range between any two of them, which is not limited here. In this embodiment, if the length of the blocking member 2 in the axial direction of the aerosol product 10 is too small, it is not conducive to the blocking member 2 to load enough magnetic particles 22; if the length of the blocking member 2 in the axial direction of the aerosol product 10 is too large, it is easy to cause a large deviation in the relative position of the sensor 12 in the axial direction of the aerosol product 10, so that after the aerosol product 10 is inserted into the aerosol generating device, the sensor 12 cannot be located in the central area of ​​the induction coil, weakening the magnetic field coupling effect between the sensor 12 and the magnetic field of the induction coil.

[0058] In one embodiment, the length of the blocking member 2 in the axial direction of the aerosol product 10 is L1, the axial length of the aerosol product 10 is L2, and 1:3≤L1 / L2≤1:10. Optionally, the value of L1 / L2 can be any one of 1:3, 1:5, 1:7, 1:9, 1:10, etc., or a range between any two of them, which is not limited here.

[0059] In one embodiment, the length of the blocking member 2 in the axial direction of the aerosol article 10 is L1, the length of the aerosol generating substrate 11 in the axial direction of the aerosol article 10 is L3, and 1:1≤L1 / L3≤1:5. Optionally, the value of L1 / L3 can be any one of 1:1, 1:2, 1:3, 1:4, 1:5, etc., or a range between any two of them, which is not limited here.

[0060] In one embodiment, the material type of the sensor 12 is not limited, and the material of the sensor 12 may include at least one of Tenets alloy, silicon steel, Permalloy, iron-aluminum alloy, Sendai alloy, iron-cobalt alloy, amorphous soft magnetic material, nanocrystalline soft magnetic material, ferrite, and soft magnetic composite material.

[0061] In one embodiment, the Curie temperature of the susceptor 12 is 300° C.-500° C. Optionally, the Curie temperature of the susceptor 12 may be any one of 300° C., 350° C., 400° C., 450° C., 500° C., etc., or a range between any two of the above, which is not limited here.

[0062] In one embodiment, the average particle size of the magnetic particles 22 is 1nm-25000nm. Optionally, the average particle size of the magnetic particles 22 can be any one of 1nm, 5nm, 10nm, 100nm, 1000nm, 10000nm, 15000nm, 20000nm, 25000nm, etc., or a range between any two of them, which is not limited here. In this embodiment, if the average particle size of the magnetic particles 22 is too small, it is easy to increase the processing cost of the magnetic particles 22. If the average particle size of the magnetic particles 22 is too large, on the one hand, it is easy to cause the magnetic particles 22 to precipitate and segregate during the mixing process with other raw materials, which is not conducive to the uniform dispersion of the magnetic particles 22 in the carrier 21; on the other hand, the formula (I) of the heating power P of the magnetic conductor in the magnetic field is as follows:

[0063]

[0064] In formula (I):

[0065] B is the maximum magnetic induction intensity, the unit is Tesla (T);

[0066] f is the frequency of the alternating magnetic field, in Hertz (Hz);

[0067] d is the thickness of the conductor, in meters (m);

[0068] V is the volume of the conductor, in cubic meters (m 3 );

[0069] ρ is the resistivity of the conductor, measured in ohm-meter (Ω·m)

[0070] Formula (I) shows that, under the premise of other parameters being fixed, the heating power P is proportional to the square of the thickness of the magnetic conductor and is proportional to the volume of the magnetic conductor. When the average particle size of the magnetic particles 22 is too large, it is easy to cause the heating power P of the magnetic particles 22 to be too large, the heating of the magnetic particles 22 will be more significant, and it is easy to cause the temperature of the magnetic particles 22 and the blocking member 2 to be too high, increase the loss of magnetic energy, and the blocking member 2 is easy to cause a greater thermal impact on the adjacent parts, and the blocking member 2 is easy to produce harmful substances or odors. At the same time, when the blocking member 2 is located downstream of the aerosol airflow, the excessively high temperature of the blocking member 2 will weaken the cooling effect of the blocking member 2 on the aerosol gas, resulting in the aerosol gas temperature at the inlet being too high. Therefore, controlling the average particle size of the magnetic particles 22 within an appropriate range can reduce the material cost of the magnetic particles 22, improve the uniformity of the distribution of the magnetic particles 22 in the carrier 21, and at the same time, prevent the heating temperature of the magnetic particles 22 and the blocking member 2 from being too high, reduce the system energy loss and the generation of harmful substances or odors, and facilitate the cooling of the aerosol gas.

[0071] In one embodiment, the magnetic particles 22 have a positive temperature resistivity. The relationship between the resistivity of the magnetic particles 22 and the temperature can be expressed by formula (II): ρ(T)=ρ0[1+α(T-T0)].

[0072] Wherein, in formula (II):

[0073] ρ(T) is the resistivity of the magnetic particles 22 at temperature T, in ohm·meter (Ω·m);

[0074] ρ0 is the resistivity of the magnetic particles 22 at the reference temperature T0, that is, the resistivity value at the reference temperature, in units of Ω·m;

[0075] α is the temperature coefficient of resistivity, which indicates the relative change in resistivity caused by a unit temperature change, in degrees Celsius (℃ -1 ) or per Kelvin (K -1 );

[0076] T is the current temperature in degrees Celsius (℃) or Kelvin (K);

[0077] T0 is the reference temperature (base temperature), which is usually a standard value such as 0℃ or room temperature (20℃), and the unit is Celsius (℃);

[0078] Combining formula (I) and formula (II), when the blocking member 2 or the magnetic particles 22 are overheated, the resistivity ρ of the magnetic particles 22 with a positive temperature resistance coefficient increases, and the heating power P of the magnetic particles 22 decreases, thereby achieving self-limiting temperature protection of the magnetic particles 22 to prevent the temperature of the magnetic particles 22 from being too high.

[0079] In one embodiment, the magnetic particles 22 are evenly distributed in the barrier 2, so that the magnetic field and the heating temperature generated in various parts of the barrier 2 are relatively uniform.

[0080] In one embodiment, when the magnetic particles 22 cannot be evenly distributed in the barrier 2, the concentration of the magnetic particles 22 on the side of the barrier 2 close to the aerosol generator 1 is greater than the concentration of the magnetic particles 22 on the side of the barrier 2 away from the aerosol generator 1. It is ensured that most of the magnetic particles 22 in the barrier 2 can be distributed in a space with a strong magnetic field intensity close to the center area of ​​the induction coil, thereby improving the magnetic field coupling effect between the magnetic particles 22 and the induction coil, and effectively enhancing the overall magnetism of the aerosol product 10.

[0081] In one embodiment, the material of the carrier 21 includes a heat insulating material. The material of the carrier 21 is a heat insulating material, which can reduce the heat transfer from the susceptor 12 and the magnetic particles 22 to the carrier 21, thereby preventing the temperature of the carrier 21 from being too high and reducing the heat loss of the susceptor 12.

[0082] In one embodiment, the specific heat capacity of the carrier 21 is 1.0 J / (kg·℃)-2.5 J / (kg·℃). Optionally, the specific heat capacity of the carrier 21 can be any one of 1.0 J / (kg·℃), 1.5 J / (kg·℃), 2.0 J / (kg·℃), 2.5 J / (kg·℃), etc., or a range between any two of them, which is not limited here.

[0083] In one embodiment, the density of the carrier 21 is 0.5 g / cm 3 -2.5g / cm 3 Optionally, the density of the carrier 21 may be 0.5 g / cm 3 , 1.0g / cm 3 , 1.5g / cm 3 , 2.0g / cm 3 , 2.5g / cm 3 The density of the carrier 21 is controlled within the above range, which can reduce the weight of the carrier 21 and help reduce the total weight of the aerosol product 10.

[0084] In one embodiment, the material of the carrier 21 includes at least one of silica gel, fluororubber, cellulose acetate, polypropylene resin, and wood material. The above-mentioned carrier material has the characteristics of low density, low specific heat capacity, softness, loose structure, etc., which can reduce the weight of the aerosol product 10, reduce heat absorption, and ensure a certain suction resistance. At the same time, it is convenient to form a plurality of tiny vents on the carrier 21 at one time, or to utilize the large porosity of the carrier material itself without the need for a hole opening operation; in addition, the carrier 21 itself has the function of blocking the leakage of particles in the aerosol generating member 1, so it is not necessary to use sealing paper to bond the end of the aerosol generating member 1, which can save the bonding process of the sealing paper.

[0085] In one embodiment, the blocking member 2 is not in contact with the susceptor 12, which can reduce the transfer of heat from the susceptor 12 to the blocking member 2, reduce the absorption of heat from the susceptor 12 by the magnetic particles 22 and the carrier 21, reduce heat loss, and prevent the blocking member 2 from overheating. At the same time, it is convenient to process and assemble the blocking member 2 and the aerosol generating member 1 separately, and the blocking member 2 and the aerosol generating member 1 can be mass-produced on a large scale and efficiently, and the consistency of the quality of the blocking member 2 and the aerosol generating member 1 can be ensured. The blocking member 2 and the aerosol generating member 1 do not need additional welding or bonding processes to connect, which can save processing steps and production costs.

[0086] In one embodiment, the spacing between the blocking member 2 and the receptor 12 is greater than 0 and less than or equal to 10 mm. Optionally, the spacing between the blocking member 2 and the receptor 12 can be any one of 0.001 mm, 0.1 mm, 1.0 mm, 2.0 mm, 4.0 mm, 6.0 mm, 8.0 mm, 10.0 mm, etc., or a range between any two of them, which is not limited here. Setting the spacing between the blocking member 2 and the receptor 12 within the above range can reduce the absorption of heat from the receptor 12 by the magnetic particles 22 and the carrier 21, while ensuring that the blocking member 2 can be distributed in a space with a strong magnetic field strength near the center area of ​​the induction coil, thereby improving the magnetic field coupling effect between the magnetic particles 22 and the induction coil, and effectively enhancing the overall magnetism of the aerosol product 10.

[0087] In one embodiment, reference Figure 1 , the aerosol product 10 also includes a tube body 3, a filter 4 and a cooling element 5, the filter 4, the cooling element 5, the aerosol generating element 1 and the blocking element 2 are located in the tube body 3, the filter 4, the cooling element 5 and the aerosol generating element 1 are arranged in sequence along the axial direction of the tube body 3, and the blocking element 2 is located on the side of the aerosol generating element 1 close to the cooling element 5. In this embodiment, the material of the tube body 3 is not limited, and the material of the tube body 3 may include at least one of a soft paper tube, a hard paper tube, an aluminum foil paper tube, a high temperature resistant plastic tube, and a silicone tube. The material of the filter 4 is not limited, and the material of the filter 4 may include at least one of sponge and cellulose acetate. The material of the cooling element 5 is not limited, and the material of the cooling element 5 may include at least one of silica gel, cellulose acetate, various resins such as porous polypropylene, various papers, cotton and plant-based materials. The material of the aerosol generating matrix 11 in the aerosol generating element 1 is not limited, and the material of the aerosol generating matrix 11 may include at least one of tobacco paste, granular smoking material, filamentary smoking material, and block smoking material.

[0088] In one embodiment, reference Figure 2 The aerosol product 10 also includes a tube body 3, a filter 4 and a cooling element 5. The filter 4, the cooling element 5, the aerosol generating element 1 and the blocking element 2 are located in the tube body 3. The filter 4, the cooling element 5 and the aerosol generating element 1 are arranged in sequence along the axial direction of the tube body 3. The blocking element 2 is located on the side of the aerosol generating element 1 away from the cooling element 5.

[0089] In one embodiment, reference Figure 3 The aerosol product 10 also includes a tube body 3, a filter 4 and a cooling member 5. The filter 4, the cooling member 5, the aerosol generating member 1 and the blocking member 2 are located in the tube body 3. The filter 4, the cooling member 5 and the aerosol generating member 1 are arranged in sequence along the axial direction of the tube body 3. There are two blocking members 2, and the two blocking members 2 are distributed on both sides of the aerosol generating member 1 along the axial direction of the tube body 3.

[0090] In one embodiment, the barrier 2 is provided with ventilation holes or grooves (not shown in the figure). The ventilation holes or grooves are used to communicate with the external atmosphere so that the aerosol product 10 has a suitable smoke resistance.

[0091] The present application also provides a method for preparing a blocking member, which specifically comprises the following steps:

[0092] S1. providing carrier materials and magnetic particles;

[0093] S2, adding magnetic particles to the carrier material, stirring evenly to obtain a mixture;

[0094] S3. Extruding the mixture through a die at a temperature of 50° C. to 500° C. to form a barrier.

[0095] In this embodiment, the magnetic particles can be commercially available magnetic particles, and the carrier material can be commercially available carrier material. In step S1, the mass ratio between the magnetic particles and the carrier material can be (2:8)-(7:3). In step S2, the stirring temperature can be 20°C-30°C, and the stirring can be carried out by a stirrer.

[0096] The present application also provides an aerosol generating device, comprising an induction coil and the aerosol product as described above; the induction coil can generate a magnetic field, and the receptor and the magnetic particles are located in the magnetic field.

[0097] The present application is further described below through specific embodiments.

[0098] Example 1

[0099] A cylindrical aerosol product, comprising a tube body, a filter, a cooling element, an aerosol generating element and a blocking element, wherein the filter, the cooling element, the aerosol generating element and the blocking element are fixed in the tube body in sequence along the axial direction of the aerosol product, the tube body is a hard paper tube, the filter is made of sponge, the cooling element is made of cellulose acetate, the outer diameter of the aerosol generating element is 6.4 mm, and the axial length is 12 mm, the aerosol generating element comprises an aerosol generating matrix and a receptor, the aerosol generating matrix is ​​tobacco paste, the receptor is inserted in the central axis area of ​​the tobacco paste, the receptor is a 0.1 mm x 3.83 mm x 11 mm iron-nickel-zirconium-based magnetic metal sheet, and the mass of the receptor is 32.4 mg.

[0100] Among them: the axial length of the blocking member is 5mm, the outer diameter is 6.4mm, the total mass of the blocking member is 196mg, the carrier of the blocking member is silica gel, and ferrite magnetic powder particles with an average particle size of 25 microns are uniformly dispersed in the silica gel. The mass percentage of ferrite magnetic powder particles in the blocking member is 30wt%, the weight of ferrite magnetic powder particles is 58.8mg, and the mass ratio of ferrite magnetic powder particles to the sensor is 1.8:1.

[0101] Example 2

[0102] The main difference between Example 2 and Example 1 is that:

[0103] The aerosol product comprises a tube body, a filter, a cooling element, an aerosol generating element and a blocking element, wherein the filter, the cooling element, the blocking element and the aerosol generating element are sequentially fixed in the tube body along the axial direction of the aerosol product.

[0104] Example 3

[0105] The main difference between Example 3 and Example 1 is that:

[0106] The aerosol product includes a tube body, a filter, a cooling element, an aerosol generating element, a first barrier and a second barrier. The filter, the cooling element, the first barrier, the aerosol generating element and the second barrier are fixed in the tube body in sequence along the axial direction of the aerosol product. The first barrier and the second barrier have the same structure and composition. The axial length of the first barrier and the second barrier are both 5 mm, the outer diameter is both 6.4 mm, the mass of the first barrier and the second barrier is both 196 mg, the carriers of the first barrier and the second barrier are both silica gel, and ferrite magnetic powder particles with an average particle size of 25 microns are uniformly dispersed in the silica gel, and the mass percentage of the ferrite magnetic powder particles in the first barrier and the second barrier is 30wt%.

[0107] Example 4

[0108] The main difference between Example 4 and Example 1 is that:

[0109] The mass percentage of the ferrite magnetic powder particles in the barrier is 20wt%, the weight of the ferrite magnetic powder particles is 39.2mg, and the mass ratio of the ferrite magnetic powder particles to the susceptor is 1.2:1.

[0110] Example 5

[0111] The main difference between Example 5 and Example 1 is that:

[0112] The mass percentage of the ferrite magnetic powder particles in the barrier is 60wt%, the weight of the ferrite magnetic powder particles is 117.6mg, and the mass ratio of the ferrite magnetic powder particles to the susceptor is 3.6:1.

[0113] Example 6

[0114] The main difference between Example 6 and Example 1 is that:

[0115] The mass percentage of the ferrite magnetic powder particles in the barrier is 70wt%, the weight of the ferrite magnetic powder particles is 137.2mg, and the mass ratio of the ferrite magnetic powder particles to the susceptor is 4.2:1.

[0116] Example 7

[0117] The main difference between Example 7 and Example 1 is that:

[0118] The material of the magnetic particles is Permalloy magnetic powder particles, and the material of the sensor is iron-aluminum alloy magnetic metal sheets.

[0119] Example 8

[0120] The main difference between Example 8 and Example 1 is:

[0121] The mass percentage of the ferrite magnetic powder particles in the barrier is 5wt%, the weight of the ferrite magnetic powder particles is 9.8mg, and the mass ratio of the ferrite magnetic powder particles to the susceptor is 0.3:1.

[0122] Example 9

[0123] The main difference between Example 9 and Example 1 is that:

[0124] The mass percentage of the ferrite magnetic powder particles in the barrier is 10wt%, the weight of the ferrite magnetic powder particles is 19.6mg, and the mass ratio of the ferrite magnetic powder particles to the susceptor is 0.6:1.

[0125] Example 10

[0126] The main difference between Example 10 and Example 1 is that:

[0127] The mass percentage of the ferrite magnetic powder particles in the barrier is 80wt%, the weight of the ferrite magnetic powder particles is 156.8mg, and the mass ratio of the ferrite magnetic powder particles to the susceptor is 4.8:1.

[0128] Comparative Example 1

[0129] A cylindrical aerosol product, the aerosol product comprises a tube body, a filter, a cooling component and an aerosol generating component, the filter, the cooling component and the aerosol generating component are fixed in the tube body in sequence along the axial direction of the aerosol product, the tube body is a hard tube, the filter is made of sponge, the cooling component is made of cellulose acetate, the outer diameter of the aerosol generating component is 6.4 mm, and the axial length is 12 mm, the aerosol generating component comprises an aerosol generating matrix and a receptor, the aerosol generating matrix is ​​tobacco paste, the receptor is inserted in the central axis area of ​​the tobacco paste, the receptor is a 0.1 mm x 3.83 mm x 11 mm iron-nickel-zirconium-based magnetic metal sheet, and the mass of the receptor is 32.4 mg.

[0130] Test method:

[0131] (I) The aerosol products of Examples 1 to 10 and Comparative Example 1 are assembled into a smoking device containing an induction coil. The smoking device adopts the UVOO Y1 electromagnetic induction smoking device produced by Yunxi Intelligent. According to the key bridge role of the magnetoelectric properties of the receptor, the connection between the power supply circuit current and the magnetic strength and temperature of the receptor is established. In the preheating stage, the control system of the aerosol generating device determines whether the aerosol product passes the identification operation by judging whether the behavior characteristics of the power supply circuit current change caused by the change of the receptor temperature conform to the preset change trend. When the identification fails, the smoking device stops preheating and shuts down, and records the identification pass rate of the aerosol product. At the same time, the YPS ultra-micro K-type thermocouple thermometer produced by Beijing Youpus Technology Center is embedded in the center of the aerosol generating matrix segment and contacts the receptor to record the temperature data of the receptor when in use. The data recorder (Keysight 34972A) has a sampling frequency of 10 Hz, and records the time from when the aerosol product is inserted into the aerosol generating device to when the expected stable heating temperature Tw (here set to 350° C.) is reached as the preheating time, wherein the preheating time does not count the samples that fail to pass the identification. 200 aerosol product samples are tested for each embodiment and comparative configuration.

[0132] The experimental results are shown in Table 1.

[0133] Table 1

[0134] Group Identification pass rate Average warm-up time Example 1 97.5％ 15.3 seconds Example 2 95.0％ 17.2 seconds Example 3 100.0％ 12.8 seconds Example 4 95.0％ 15.7 seconds Example 5 97.5％ 13.6 seconds Example 6 100.0％ 12.1 seconds Example 7 97.5％ 14.2 seconds Example 8 92.5％ 19.3 seconds Example 9 92.5％ 18.9 seconds Example 10 90.0％ 20.5 seconds Comparative Example 1 87.5％ 22.6 seconds

[0135] Figure 7 This is a 35-fold magnified SEM image of a cross-sectional slice of the barrier member of Example 1 of the present application; Figure 8 This is a SEM image of a cross-sectional slice of the barrier member of Example 1 of the present application, magnified 1000 times. Figure 7 The barrier is shown with a vent hole therein, and Figure 7 The grayish-white area in the middle is the magnetic particles, and the dark gray area is the carrier. Figure 8 It can be clearly seen that multiple magnetic particles are evenly distributed in the carrier.

[0136] It can be seen from the analysis of Examples 1 to 10 and Comparative Example 1 that the barrier containing magnetic particles is provided in the aerosol product, which can improve the recognition rate of the aerosol product through the smoking device recognition operation, and at the same time, can improve the heating speed of the receptor and shorten the time for the receptor to reach the expected stable working temperature. The reason may be that the magnetic particles can be effectively magnetized in the magnetic field, thereby becoming an additional magnetic source, and the magnetic field generated by the magnetic particles and the magnetic field generated by the induction coil can be coupled to the magnetic field, so that the overall magnetism of the aerosol product is enhanced. The magnetic particles can make the receptor still produce a preset magnetic strength in the magnetic field after the magnetism is enhanced in the case of processing errors, assembly errors, etc., and increase the probability of the aerosol product passing the recognition operation; in addition, the magnetic particles themselves are very fine particles, and the magnetic particles do not heat up significantly, so that the magnetic particles can significantly improve the overall magnetism of the aerosol product, but the magnetic particles themselves do not cause obvious eddy current heating effect, which can make the aerosol product have a strong power input, and most of the power input is converted to the receptor, thereby improving the heating speed of the receptor. In addition, magnetic particles can reduce the temperature overshoot and magnetic energy loss of the sensor. While constructing more internal magnetic circuits, magnetic particles reduce the energy loss of the system and stabilize the stability of the feedback signal of the inductance change, which is beneficial to the stable temperature control of the magnetic excitation system. At the same time, the heat generation of the magnetic particles themselves is limited, which can reduce unnecessary heating of nearby components by the blocking parts, thereby making the magnetic field coupling, heating and operation of nearby components of the entire system more stable, which further helps the sensor to achieve more stable temperature control, increase the probability of aerosol products passing the identification operation and the heating speed of the sensor.

[0137] From the analysis of Examples 1 to 7 and Examples 8 to 10, it can be seen that controlling the mass of magnetic particles and the mass ratio of magnetic particles to receptors within an appropriate range can further improve the recognition rate of aerosol products through smoking utensil recognition operations and increase the heating speed of the receptors.

[0138] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An aerosol product, characterized in that: The aerosol product includes an aerosol generating member and a blocking member disposed adjacent to each other; The aerosol generating member comprises an aerosol generating substrate and a susceptor, wherein the susceptor is capable of generating heat energy in a magnetic field to heat the aerosol generating substrate; The barrier includes a carrier and magnetic particles dispersed in the carrier.

2. The aerosol product according to claim 1, characterized in that: The mass ratio of the magnetic particles to the receptors is (1.2-4.2):1; and / or The mass of the magnetic particles is 39.2 mg-137.2 mg.

3. The aerosol product according to claim 1 or 2, characterized in that: The magnetic particles include at least one of iron, ferrite, iron alloy, modified graphite, modified graphene, cobalt, cobalt oxide, cobalt alloy, nickel, nickel oxide, and nickel alloy; and / or The material of the sensor includes at least one of Tenets alloy, silicon steel, Permalloy, iron-aluminum alloy, Sendai alloy, iron-cobalt alloy, amorphous soft magnetic material, nanocrystalline soft magnetic material, ferrite, and soft magnetic composite material.

4. The aerosol product according to claim 1 or 2, characterized in that: The average particle size of the magnetic particles is 1 nm-25000 nm; and / or The magnetic particles have a positive temperature resistivity; and / or The Curie temperature of the susceptor is 300°C-500°C; and / or The Curie temperature of the magnetic particles is 300°C-1000°C; and / or The length of the blocking member in the axial direction of the aerosol product is 3 mm to 10 mm; and / or The length of the blocking member in the axial direction of the aerosol product is L1, the axial length of the aerosol product is L2, 1:3≤L1 / L2≤1:10; and / or The length of the blocking member in the axial direction of the aerosol article is L1, the length of the aerosol generating substrate in the axial direction of the aerosol article is L3, and 1:1≤L1 / L3≤1:

5.

5. The aerosol product according to claim 1 or 2, characterized in that: The magnetic particles are uniformly distributed in the barrier; or The concentration of the magnetic particles on a side of the barrier close to the aerosol generating element is greater than the concentration of the magnetic particles on a side of the barrier far from the aerosol generating element.

6. The aerosol product according to claim 1 or 2, characterized in that: The material of the carrier includes a heat-insulating material; and / or The specific heat capacity of the carrier is 1.0 J / (kg·°C)-2.5 J / (kg·°C); and / or The density of the carrier is 0.5 g / cm 3 -2.5g / cm 3 .

7. The aerosol product according to claim 6, characterized in that: The material of the carrier includes at least one of silica gel, fluororubber, cellulose acetate, polypropylene resin and wood material.

8. The aerosol product according to claim 1 or 2, characterized in that: The blocking member is not in contact with the susceptor.

9. The aerosol product according to claim 8, characterized in that: The distance between the blocking member and the sensor is greater than 0 and less than or equal to 10 mm.

10. The aerosol product according to claim 1 or 2, characterized in that: The aerosol product further comprises a tube body, a filter and a cooling element, wherein the filter, the cooling element, the aerosol generating element and the blocking element are located in the tube body, and the filter, the cooling element and the aerosol generating element are sequentially arranged along the axial direction of the tube body; The blocking member is located on a side of the aerosol generating member close to the cooling member, or the blocking member is located on a side of the aerosol generating member away from the cooling member, or the number of the blocking members is two, and the two blocking members are distributed on both sides of the aerosol generating member along the axial direction of the tube body.

11. An aerosol generating device, characterized in that: comprising an induction coil and an aerosol product as claimed in any one of claims 1 to 10; The induction coil is capable of generating a magnetic field, and the susceptor and the magnetic particles are located in the magnetic field.

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