Aerosol generating device and system

Abstract

The utility model provides an aerosol generating device and system, and the aerosol generating device comprises a housing which is internally provided with an atomization cavity and is used for accommodating an aerosol generating substrate; the power supply assembly is arranged in the shell; the electromagnetic heating assembly is arranged in the shell and is electrically connected with the power supply assembly; the electromagnetic heating assembly comprises a magnet exciting coil and a magnetic conducting piece, and the atomizing cavity, the magnet exciting coil and the magnetic conducting piece are sequentially arranged in the longitudinal direction of the shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of atomization, and more specifically, relates to an aerosol generating device and a system. Background Art

[0002] The heat-not-burn aerosol generating device bakes the aerosol generating matrix at a temperature of 200℃ to 350℃ through a heating element to generate an aerosol for the user to inhale, which can reduce a large amount of harmful substances caused by high-temperature cracking. The heat-not-burn aerosol generating devices on the market are mainly divided into resistance heating and electromagnetic heating. The related electromagnetic heating aerosol generating devices have low magnetic field utilization, high energy consumption, and product performance needs to be improved. Utility Model Content

[0003] In view of this, the utility model provides an aerosol generating device and a system to solve the technical problem of improving the product performance of the aerosol generating device.

[0004] The technical solution of the utility model is achieved in this way:

[0005] The present invention provides an aerosol generating device, comprising:

[0006] A shell body, wherein an atomizing chamber is provided inside, and the atomizing chamber is used to contain an aerosol-generating matrix;

[0007] A power supply component, disposed in the housing;

[0008] The electromagnetic heating component is arranged in the shell and is electrically connected to the power supply component; the electromagnetic heating component includes an excitation coil and a magnetic conductive member, and the atomization chamber, the excitation coil and the magnetic conductive member are arranged in sequence in the longitudinal direction of the shell.

[0009] In some embodiments, the magnetic conductive member includes a first extension portion and a second extension portion, the first extension portion extends in a transverse direction of the shell, the second extension portion extends in a longitudinal direction of the shell, the second extension portion is at least partially arranged on a side of the first extension portion close to the atomization chamber, and the excitation coil is arranged on the outside of the second extension portion in the transverse direction.

[0010] In some embodiments, the first extension portion and the second extension portion are integrally formed;

[0011] Alternatively, the first extension portion and the second extension portion are separated in a longitudinal direction, and a distance between the first extension portion and the second extension portion in the longitudinal direction is less than or equal to 2 mm.

[0012] In some embodiments, along the longitudinal projection of the shell, the projection area of ​​the excitation coil on the first extension portion is less than or equal to the cross-sectional area of ​​the first extension portion.

[0013] In some embodiments, the magnetic conductive member further includes a third extending portion, the third extending portion extends along the longitudinal direction toward the atomization chamber, and the third extending portion is disposed around an outer edge of the first extending portion.

[0014] In some embodiments, the excitation coil is configured as a planar coil.

[0015] In some embodiments, the electromagnetic heating assembly further comprises:

[0016] The bracket is arranged on a side of the magnetic conductive component close to the atomizing chamber. The bracket is provided with a plurality of concentric limiting grooves. The excitation coil is a planar spiral coil and is clamped in the limiting grooves.

[0017] In some embodiments, the planar spiral coil includes a first planar spiral coil and a second planar spiral coil, and the first planar spiral coil and the second planar spiral coil are arranged in parallel in the longitudinal direction.

[0018] In some embodiments, it also includes:

[0019] A container, disposed in the housing, wherein at least a portion of the atomization chamber is formed inside the container;

[0020] A susceptor constituting at least a portion of the container wall of the container, wherein the susceptor comprises a fourth extension portion extending in a transverse direction, and the fourth extension portion is arranged in parallel with the excitation coil; or the susceptor comprises a fourth extension portion and a fifth extension portion, the fourth extension portion extends in a transverse direction, the fifth extension portion extends in a longitudinal direction toward a side away from the excitation coil, and the fifth extension portion is arranged around at least a portion of the outer edge of the fourth extension portion.

[0021] An embodiment of the utility model also provides an aerosol generating system, comprising the above-mentioned aerosol generating device, an aerosol generating substrate and a receptor, wherein the aerosol generating substrate and the receptor are arranged in the atomization chamber, and the aerosol generating substrate is in contact with the receptor to generate an aerosol under the condition that the receptor is heated.

[0022] The present invention also provides an aerosol generating system, the aerosol generating system further comprising:

[0023] According to any of the above-mentioned aerosol generating devices, a liquid storage chamber is further provided in the housing, and the liquid storage chamber and the atomizing chamber are arranged in sequence in the longitudinal direction;

[0024] A substrate, connected to the liquid storage cavity, and used for absorbing the liquid aerosol in the liquid storage cavity;

[0025] A susceptor is in contact with the substrate and communicated with the atomization chamber.

[0026] In some embodiments, the susceptor is in sheet form, and the susceptor comprises:

[0027] The magnetic field focusing part is provided in a plurality;

[0028] The heat generating part is connected to the plurality of magnetic collecting parts, and the area of ​​the heat generating part is smaller than the area of ​​the magnetic collecting part.

[0029] In some embodiments, the heating portion is provided in plurality, the plurality of heating portions are arranged at intervals, and the width of the heating portion close to the center of the susceptor is smaller than the width of the heating portion far from the center of the susceptor.

[0030] An embodiment of the utility model provides an aerosol generating device and system, wherein the aerosol generating device comprises a shell, a power supply component and a magnetic heating component. An atomizing chamber is provided in the shell, and the atomizing chamber is used to accommodate an aerosol generating matrix. The power supply component is arranged in the shell, and the electromagnetic heating component is arranged in the shell and is electrically connected to the power supply component. The electromagnetic heating component comprises an excitation coil and a magnetic conductive part. The atomizing chamber, the excitation coil and the magnetic conductive part are arranged in sequence in the longitudinal direction of the shell. The embodiment of the utility model arranges a magnetic conductive part in the aerosol generating device, and the magnetic conductive part can converge the magnetic lines of force generated by the excitation coil, thereby enhancing the magnetic field strength at the atomization chamber, and the atomization chamber, the excitation coil and the magnetic conductive part are arranged in sequence in the longitudinal direction, the atomization chamber is used to install the receptor, and the magnetic conductive part is arranged on the side of the excitation coil away from the receptor. The magnetic conductive part can block the magnetic lines of force on the side of the excitation coil away from the receptor, reduce the risk of leakage of the magnetic lines of force from the side of the magnetic conductive part away from the receptor, reduce the energy consumption of the aerosol generating device, and is beneficial to improve the electromagnetic conversion efficiency of the excitation coil, so as to enhance the product performance and user experience of the entire aerosol generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural schematic diagram of a related central aerosol generating device;

[0032] Figure 2 is a schematic structural diagram of a related peripheral aerosol generating device;

[0033] Figure 3 A cross-sectional view of an aerosol generating device according to a first embodiment of the utility model;

[0034] Figure 4 A cross-sectional view of an aerosol generating device according to a second embodiment of the present utility model;

[0035] Figure 5 A cross-sectional view of an aerosol generating device according to a third embodiment of the present utility model;

[0036] Figure 6 is a cross-sectional view of an aerosol generating device according to a fourth embodiment of the present utility model;

[0037] Figure 7 A cross-sectional view of a first magnetic conductive member according to an embodiment of the utility model;

[0038] Figure 8 A cross-sectional view of a second magnetic conductive member according to an embodiment of the present utility model;

[0039] Fig. 9 This is a schematic diagram of the structure of the first excitation coil of the embodiment of the utility model;

[0040] Fig.10 This is a schematic diagram of the structure of a second excitation coil according to an embodiment of the utility model;

[0041] Fig.11 A schematic diagram of the structure of a bracket according to an embodiment of the utility model;

[0042] Fig.12 A cross-sectional view of a magnetic conductive member according to an embodiment of the utility model;

[0043] Fig.13 is a cross-sectional view of an aerosol generating device according to a fifth embodiment of the present utility model;

[0044] Fig.14 This is a schematic diagram of the structure of the first sensor of the utility model embodiment;

[0045] Fig.15 This is a schematic diagram of the structure of the second sensor of the embodiment of the utility model;

[0046] Fig.16 This is a schematic diagram of the structure of a third sensor according to an embodiment of the utility model;

[0047] Fig.17 This is a schematic structural diagram of a fourth sensor according to an embodiment of the present utility model.

[0048] Description of reference numerals:

[0049] 1. Power supply; 2. Shell; 21. Installation cavity; 22. Liquid storage cavity; 23. Heating cavity; 24. Mouthpiece; 25. Hand-held part; 26. Air outlet channel; 3. Electric control board; 4. Sensor; 41. Magnetic focusing part; 42. Heating part; 43. Through hole; 44. Fourth extension part; 45. Fifth extension part; 5. Excitation coil; 6. Aerosol generating matrix; 7. Smoke evacuation tube; 8. Magnetic conductive part; 81. First extension part; 82. Second extension part; 83. Third extension part; 9. Filter element; 10. Bracket; 101. Limiting groove; 11. Base. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0051] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0052] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the corresponding schematic diagrams, which may or may not be the left and right directions in normal use.

[0053] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0054] The embodiment of the utility model provides an aerosol generating device, which can be used to atomize a liquid aerosol atomization matrix into a gaseous aerosol. The aerosol generating device can be applied to various atomization scenarios. For example, the aerosol generating device can be applied to atomization scenarios such as medical cosmetology, nicotine delivery, and daily life. The aerosol atomization matrix can be a powder, a fragrance, a nicotine preparation, and an aerosol matrix that can produce a special smell, etc., and the aerosol atomization matrix can be fixed or liquid. Those skilled in the art can understand that there can be many application scenarios for the aerosol generating device. The embodiment of the utility model does not limit the application scenario of the aerosol generating device, and the application scenario of the aerosol generating device will not limit the structure of the aerosol generating device.

[0055] The aerosol generating device in the embodiment of the utility model is applied to the field of heat-not-burn (HNB) atomization. Figure 1 and Figure 2 As shown, the aerosol generating device in the related art is described below: The related aerosol generating system includes an aerosol generating device and an aerosol generating substrate 6 (smoke bomb). The aerosol generating device includes a shell and a receptor 4 (heating element) contained in the shell, a smoke evacuation tube 7 and a power supply device (refer to Figure 1 The smoke evacuation tube 7 is provided with a receiving space for inserting the aerosol generating substrate 6. The power supply device is connected to the excitation coil 5, and the excitation coil 5 acts on the susceptor 4 with the generated high-frequency magnetic field, so that the susceptor 4 generates eddy current and generates heat. In the above process, the excitation coil 5 converts the electric energy into magnetic energy and transmits it to the susceptor 4, and the susceptor 4 converts the magnetic energy into heat energy and transmits it to the aerosol generating substrate 6. The power supply device may include the electric control board 3 and the power supply 1, the power supply 1 is connected to the electric control board 3, the electric control board 3 is connected to the excitation coil 5, and the power supply 1 is used to provide electric energy to the excitation coil 5.

[0056] like Figure 1 In the central aerosol generating device shown, the receptor 4 is arranged at the center of the aerosol generating matrix 6. The assembly position of the receptor 4 and the excitation coil 5 is limited by the shape and size of the aerosol generating matrix 6. The structural parameters of the aerosol generating matrix 6 also play an important role in the heating effect of the receptor 4. For the central aerosol generating device, the assembly distance between the excitation coil 5 and the receptor 4 is relatively far, and the excitation coil 5 is arranged in the form of longitudinal arrangement. The magnetic field at both ends of the excitation coil 5 in the longitudinal direction is prone to leakage, and the actual magnetic lines of force acting on the receptor 4 are reduced, resulting in low energy conversion efficiency and high energy consumption of the aerosol generating device. In addition, the central aerosol generating device also has the problem of uneven distribution of magnetic field and thermal field, which makes the internal and external baking uneven. The receptor is difficult to clean, and the performance and user experience of the entire aerosol generating device are poor.

[0057] like Figure 2 In the circumferential aerosol generating device shown, the receptor 4 is arranged around the outside of the aerosol generating matrix 6 or at the center of the medium segment of the aerosol generating matrix 6, and the excitation coil 5 is arranged on the outside of the receptor 4. The receptor 4 has the problem of uneven magnetic field distribution, which causes the thermal field of the receptor 4 to also have an uneven distribution phenomenon, which can easily cause uneven baking of the inside and outside of the aerosol generating matrix 6, resulting in poor performance and user experience of the entire aerosol generating device.

[0058] like Figure 3-Figure 17 As shown, the embodiment of the utility model provides an aerosol generating device, such as Figure 3As shown, the aerosol generating device includes a housing 2, a power supply component and an electromagnetic heating component. The housing 2 is provided with an installation cavity 21, and the power supply component is arranged in the installation cavity 21. In some embodiments, the power supply component includes a power supply 1 and an electric control board 3. The electromagnetic heating component is arranged in the housing 2, and the electromagnetic heating component is electrically connected to the power supply component; the housing 2 is also provided with an atomizing cavity, and the atomizing cavity is used to accommodate the aerosol generating matrix. The electromagnetic heating component includes an excitation coil 5 and a magnetic conductive member 8, and the atomizing cavity (refer to Figure 3 The position shown by the receptor 4 in the atomization chamber), the excitation coil 5 and the magnetic conductive member 8 are sequentially arranged in the longitudinal direction of the housing 2. Among them, the receptor 4 can be used as a part of the electromagnetic heating component, and the receptor 4 is arranged in the atomization chamber; in other embodiments, the receptor 4 can also be used as a part of the aerosol generating matrix. It should be noted that the longitudinal direction represents the length direction of the housing 2, and the length direction is usually the up and down direction of the aerosol generating device in normal use. In addition, the transverse direction represents the width direction of the housing 2, and the width direction is usually the front and back or left and right direction of the aerosol generating device in normal use, wherein the transverse direction is perpendicular to the longitudinal direction. The atomization chamber, the excitation coil 5 and the magnetic conductive member 8 defined in the embodiment of the utility model are arranged at the same time in the longitudinal direction, indicating that the receptor 4, the excitation coil 5 and the magnetic conductive member 8 in the atomization chamber are in different positions in the longitudinal direction, but the positions in the transverse direction can overlap. Among them, the excitation coil 5 can be connected to the electric control board 3, and the electric control board 3 can control the power supply 1 to supply power to the excitation coil 5, and the excitation coil 5 can convert electrical energy into magnetic energy.

[0059] The magnetic conductive component 8 has the effect of concentrating magnetic field, that is, the magnetic conductive component 8 in the embodiment of the utility model is a component with the function of enhancing the magnetic field. The magnetic conductive component 8 in the embodiment of the utility model is set to ferromagnetic material. The material of the magnetic conductive component 8 includes but is not limited to ferrite soft magnetic material, Permalloy soft magnetic material, nanocrystalline soft magnetic material, amorphous soft magnetic material and magnetic powder core soft magnetic material.

[0060] The receptor 4 is located in the magnetic field generated by the excitation coil 5. The embodiment of the utility model is provided with a magnetic conductive member 8, and the magnetic conductive member 8 is provided on the side of the excitation coil 5 away from the atomization chamber. The magnetic conductive member 8 can converge the magnetic lines of force generated by the excitation coil 5, thereby enhancing the magnetic field sensed by the receptor 4; and the position where the magnetic conductive member 8 is provided will not interfere with the magnetic field sensed by the excitation coil 5 by the receptor 4. The magnetic conductive member 8 located on the side away from the receptor 4 can also block the magnetic field away from the side, reducing the risk of magnetic lines of force leaking from the side of the excitation coil 5 away from the receptor 4, which is conducive to enhancing the magnetic field at the receptor 4 and improving the electromagnetic conversion efficiency of the excitation coil. By arranging the excitation coil and the magnetic conductive member in sequence in the longitudinal direction, the distance between the excitation coil 5 and the receptor is smaller. The smaller the distance, the more magnetic lines of force act on the receptor, the higher the utilization rate of the magnetic field, and the higher the atomization efficiency.

[0061] Reference Figure 3-Figure 6 As shown, an embodiment of the utility model provides an aerosol generating device, which includes a shell 2, a power supply component and a magnetic heating component. An atomization chamber is provided in the shell 2, and the atomization chamber is used to accommodate an aerosol generating matrix. The power supply component is arranged in the shell 2, and the electromagnetic heating component is arranged in the shell and is electrically connected to the power supply component. The electromagnetic heating component includes an excitation coil 5 and a magnetic conductive component 8. The atomization chamber, the excitation coil 5 and the magnetic conductive component 8 are arranged in sequence in the longitudinal direction of the shell 2. The embodiment of the utility model provides a magnetic conductive member 8 in the aerosol generating device. The magnetic conductive member 8 can converge the magnetic lines of force generated by the excitation coil 5, thereby enhancing the magnetic field strength at the atomization chamber, and the atomization chamber, the excitation coil 5 and the magnetic conductive member 8 are sequentially arranged in the longitudinal direction. The atomization chamber is used to install the receptor 4. The magnetic conductive member 8 is arranged on the side of the excitation coil 5 away from the receptor 4. The magnetic conductive member 8 can block the magnetic lines of force on the side of the excitation coil 5 away from the receptor 4, reduce the risk of magnetic lines of force leaking from the side of the magnetic conductive member 8 away from the receptor 4, reduce the energy consumption of the aerosol generating device, and help to improve the electromagnetic conversion efficiency of the excitation coil 5, so as to enhance the product performance and user experience of the entire aerosol generating device.

[0062] It should be noted that the magnetic conductive member 8 in the embodiment of the present utility model can be set in various forms. The following describes the implementation forms of the magnetic conductive member 8 respectively:

[0063] In some embodiments, Figure 5 As shown, the magnetic conductive member 8 is only provided with a first extension portion, and the first extension portion can be provided in a flat shape, where the flat shape means that the thickness of the first extension portion in the longitudinal direction is smaller than the width in the transverse direction.

[0064] In some embodiments, Figure 3 , Figure 4 , Figure 6 , Figure 7-Figure 12 As shown, the magnetic conductive member 8 includes a first extension portion 81 and a second extension portion 82. The first extension portion 81 extends in the transverse direction of the housing 2, and the second extension portion 82 extends in the longitudinal direction of the housing. Figure 3 , Figure 4 and Figure 8 As shown, the second extension portion 82 is arranged on a side of the first extension portion 81 close to the sensor 4. Specifically, the first extension portion 81 has two opposite sides in the longitudinal direction, one side is close to the sensor 4, and the other side is far from the sensor 4. In some embodiments, the second extension portion 82 is arranged at the center of the first extension portion 81. It should be noted that the embodiment of the utility model does not limit the shape of the cross section of the first extension portion 81. The cross section is perpendicular to the longitudinal direction of the housing 2, and it is understood that the transverse surface is Figure 3In the left and right directions of the image, the transverse surface shape of the first extension portion 81 can be one of a circle, an ellipse, a square, a rectangle and a ring, and the center of the first extension portion 81 represents the geometric center of the first extension portion 81. In some embodiments, the shape of the cross section of the first extension portion 81 is consistent with the cross section shape of the excitation coil 5, wherein the cross section is perpendicular to the longitudinal direction. In other words, no matter what shape the first extension portion 81 is set to, as long as the cross section shape of the first extension portion 81 is consistent with the cross section shape of the excitation coil 5. By setting the cross section shape of the first extension portion 81 to be consistent with that of the excitation coil 5, it is beneficial to cover the first extension portion 81 with magnetic lines of force as much as possible, thereby reducing the risk of magnetic line of force leakage, thereby facilitating the improvement of the magnetic field strength.

[0065] Referring to Table 1, the magnetic conversion efficiency of the data bit magnetic conductive member with the second extension part and without the second extension part is compared in Table 1. It can be seen from the table below that the electromagnetic conversion efficiency without the second extension part is lower than the electromagnetic conversion efficiency with the second extension part. Therefore, the embodiment of the utility model is conducive to improving the electromagnetic conversion efficiency by setting the second extension part on the magnetic conductive member, so that the central temperature of the sensor increases and the high temperature range of the sensor increases.

[0066]

[0067] Table 1

[0068] In some embodiments, Figure 7 As shown, the cross-sectional area of ​​the first extension portion 81 is greater than or equal to the cross-sectional area of ​​the excitation coil 5. In other words, the first extension portion 81 is required to cover and block the excitation coil 5 as much as possible, while reducing the risk of magnetic field lines leaking from uncovered positions.

[0069] like Figure 7 As shown, in the embodiment of the utility model, the second extension portion 82 is arranged at the geometric center of the first extension portion 81, and the width of the second extension portion 82 in the transverse direction is smaller than the width of the first extension portion 81 in the transverse direction. It can also be understood that the cross-sectional area of ​​the second extension portion 82 is smaller than the cross-sectional area of ​​the first extension portion 81. The excitation coil 5 can be arranged in a ring shape, that is, the excitation coil 5 is arranged on the outside of the second extension portion 82 in the transverse direction, that is, the second extension portion 82 passes through the excitation coil 5, and the excitation coil 5 is arranged in the longitudinal direction on the first extension portion 81 close to the sensor 4 (combined with Figure 3 and Figure 7 This is beneficial for better convergence of the magnetic lines of force of the excitation coil 5, thereby further enhancing the magnetic field strength to improve energy conversion efficiency.

[0070] In some embodiments, Figure 7As shown, the first extension part 81 and the second extension part 82 are integrally formed. Integrally formed means that the first extension part 81 and the second extension part 82 are fixedly arranged, and the first extension part 81 and the second extension part 82 are closely connected to each other, and the forming method includes but is not limited to casting, extrusion, welding, bonding and the like.

[0071] In some embodiments, the first extension portion 81 and the second extension portion 82 are two independent parts, and the two can be processed and manufactured independently, which is conducive to reducing the difficulty of production and manufacturing. Among them, when assembled, the first extension portion 81 and the second extension portion 82 are separated in the longitudinal direction, as long as the distance between the first extension portion 81 and the second extension portion 82 in the longitudinal direction is less than or equal to 2mm. In other words, even if the first extension portion 81 and the second extension portion 82 are set separately, after assembly, it is necessary to meet the gap between the first extension portion and the second extension portion is less than the set value, which is conducive to reducing the risk of magnetic field leakage between the first extension portion 81 and the second extension portion 82, thereby helping to enhance the magnetic field strength.

[0072] In some embodiments, Figure 7 As shown, the magnetic conductive member 8 also includes a third extension portion 83, which extends in the longitudinal direction. The third extension portion 83 is connected to the side of the first extension portion 81 close to the receptor. One end of the third extension portion 83 is connected to the first extension portion 81, and the other end extends in the direction close to the receptor. The third extension portion 83 is arranged around the outer edge of the first extension portion 81. The outer edge represents the boundary position between the first extension portion 81 and the outside in the horizontal direction. The surrounding arrangement of the third extension portion 83 indicates that the third extension portion 83 is arranged around the circumference of the first extension portion 81. By arranging the third extension portion 83 on the magnetic conductive member 8, the third extension portion 83 can block the magnetic lines of force on the side to reduce the risk of magnetic lines of force leaking in the horizontal direction, and further converge the magnetic lines of force on the inner receptor in the horizontal direction, thereby improving energy conversion efficiency and reducing energy consumption.

[0073] In some embodiments, Figure 7 As shown, the third extension portion 83 is longitudinally ( Figure 7 The thickness in the vertical direction (shown in the figure) is greater than or equal to the thickness in the longitudinal direction ( Figure 7 This is beneficial to enhancing the blocking effect of the third extension portion 83 on the magnetic force lines of the excitation coil 5, converging the magnetic force lines at the center as much as possible, and improving the magnetic field strength.

[0074] In some embodiments, Figure 3-Figure 6As shown, the excitation coil 5 is configured as a planar coil. A planar coil means that the winding direction of the coil is in the horizontal direction, not in the vertical direction, and adjacent coils are arranged in the horizontal direction, so that the size of the wound excitation coil 5 in the horizontal direction is larger than that in the vertical direction. The embodiment of the utility model is conducive to improving the uniformity of the heating of the sensor by configuring the excitation coil 5 as a planar coil, and the excitation coil 5 and the sensor 4 are arranged in sequence in the vertical direction, thereby improving the product quality of the aerosol generating device.

[0075] The following is an explanation of how to set up the excitation coil:

[0076] In some embodiments, Figure 3-Figure 6 As shown, the excitation coil 5 is in the horizontal direction ( Figure 3 The excitation coil 5 is tightly spirally wound from the inside to the outside (in the left and right direction shown) to form a multi-turn coil. It should be noted that the inside and outside described in the embodiment of the utility model are based on the relative position relationship with the center of the magnetic conductive member 8, wherein the position of the excitation coil 5 close to the geometric center of the magnetic conductive member 8 in the lateral direction is defined as the inner side of the excitation coil 5, and the position of the excitation coil 5 far away from the geometric center of the magnetic conductive member 8 in the lateral direction is defined as the outer side of the excitation coil 5. The excitation coil 5 is wound inside and outside to form a multi-turn coil, thereby forming a flat structure.

[0077] It should be noted that, in order to improve the structural stability of the excitation coil 5, the coils with adjacent turns can be fixed, or the adjacent coils can be fixed by a bracket. The embodiment of the utility model does not limit the fixing method between the multi-turn coils. For example, the coils with adjacent turns can be fastened by self-adhesive wire; and / or, the coils with adjacent turns can be fastened by epoxy resin.

[0078] In the embodiment where adjacent coils are fixed by a bracket, refer to Figure 7-Figure 11 As shown, the bracket 10 is arranged on the side of the magnetic conductive member 8 close to the receptor, as shown in FIG. Fig.11 As shown, the bracket 10 is provided with a plurality of concentric limiting grooves 101, which are arranged around. Figure 7 As shown, the center of the bracket 10 can be provided with a second extension portion 82 in the magnetic conductive member. Fig.11 As shown, a plurality of limiting grooves 101 are provided on the same bracket 10 , and the excitation coil 5 is clamped in the limiting grooves 101 , and the inner and outer turns of the excitation coil 5 are spaced apart, so that the bracket 10 fixes the excitation coil 5 .

[0079] In the embodiment of the present utility model, the excitation coil 5 can be arranged in various ways, as shown in FIG. Figure 7-Figure 11 , the arrangement of the excitation coil 5 is described below:

[0080] In some embodiments, reference Fig. 9 and Fig.11 , the bracket 10 is in the horizontal direction ( Fig.11 In the direction from the edge to the center (as shown on the paper), it is divided into three parts, namely the outside, the middle and the inside. The spacing between adjacent limiting grooves in the middle is greater than the spacing between adjacent limiting grooves in the outside or the inside. That is to say, when the excitation coil 5 is provided in each limiting groove 101, it can be achieved that the spacing between the excitation coils 5 at the outside and inside is smaller than the spacing between the excitation coils 5 in the middle. The middle part of the relevant coiled coil is a strong magnetic field area, while the outside and the inside are weak magnetic field areas. The embodiment of the utility model weakens the magnetic field strength in the middle and enhances the magnetic field strength inside and outside by making the spacing between the excitation coils at the outside and inside smaller than the spacing between the excitation coils in the middle, which is beneficial to uniformizing the magnetic field strengths at the inside, outside and middle parts, thereby improving the uniformity of heating of the receptor, so as to further improve the atomization quality of the aerosol generating device.

[0081] In some embodiments, reference Fig.10 and Fig.11 As shown, each limiting groove 101 can be in the longitudinal direction ( Fig.10 In the vertical direction (shown in FIG. 1 ), one or more layers of excitation coils 5 are arranged, that is, the excitation coils 5 can be arranged in one layer, two layers, three layers, four layers, etc. The more layers of the excitation coils 5, the stronger the magnetic field. In some embodiments, the excitation coils are planar spiral coils, and the planar spiral coils include a first planar spiral coil and a second planar spiral coil, and the first planar spiral coil and the second planar spiral coil are arranged in parallel in the longitudinal direction.

[0082] In the embodiment of the utility model, the number of layers of the excitation coils 5 in the limiting groove 101 in the middle of the bracket 10 is less than the number of layers of the excitation coils 5 in the limiting grooves 10 located inside or outside. Fig.10 As shown, the excitation coil 5 in the middle is provided with one layer, and the excitation coils 5 inside and outside are provided with two layers, that is, the number of layers of the excitation coils inside and outside is greater than the number of layers of the excitation coil 5 in the middle. The more layers, the stronger the magnetic field, and the fewer layers, the weaker the magnetic field. The embodiment of the utility model arranges the excitation coil 5 inside, middle and outside differently, weakens the magnetic field strength in the middle, and enhances the magnetic field strength inside and outside, which is conducive to uniformizing the magnetic field strength inside, outside and middle, thereby improving the uniformity of heating of the receptor, so as to further improve the atomization quality of the aerosol generating device.

[0083] In some embodiments, Figure 3As shown, the aerosol generating device is provided with a container for forming an atomizing chamber, and the container can be used to contain a solid aerosol generating matrix or a medium such as tobacco. The susceptor constitutes at least part of the container wall of the container, that is, the susceptor is a part of the container or the susceptor is the entire container, and the susceptor 4 includes a fourth extension portion 44 extending in the transverse direction, and the fourth extension portion 44 is arranged in parallel with the excitation coil 5. It can be understood that the distance between the fourth extension portion 44 and the excitation coil 5 is a constant value. It is beneficial to improve the uniformity of heating of the susceptor 4. Among them, the spacing between the fourth extension portion 44 and the excitation coil 5 can be set to 1mm-10mm. In some embodiments, the spacing can be set to 5mm, 8mm, etc. The embodiment of the utility model is conducive to reducing the distance between the susceptor 4 and the excitation coil 5 by arranging the susceptor 4 and the excitation coil 5 in parallel and in sequence in the longitudinal direction, increasing the magnetic lines of force acting on the susceptor, and improving the utilization rate of the magnetic field.

[0084] In some embodiments, Figure 3 As shown, the sensor 4 includes a fourth extension portion 44 and a fifth extension portion 45. The fourth extension portion 44 extends in a transverse direction ( Figure 3 The fifth extension portion 45 extends in the longitudinal direction ( Figure 3 The fifth extension portion 45 is arranged around the outer edge of the fourth extension portion 44. The outer edge represents the boundary position between the fourth extension portion 44 and the outside in the lateral direction, and the surrounding arrangement of the fifth extension portion 45 means that the fifth extension portion 45 is arranged around the circumference of the fourth extension portion 44. In the case of arranging the aerosol generating matrix 6, the aerosol generating matrix 6 is arranged on the side of the fourth extension portion 44 away from the excitation coil 5. By arranging the fifth extension portion 45 on the side of the fourth extension portion 44 away from the excitation coil 5, the fifth extension portion 45 can be arranged around the circumference of the aerosol generating matrix 6, which is conducive to increasing the contact area between the receptor 4 and the aerosol generating matrix 6, improving the atomization efficiency of the aerosol generating matrix, and thus improving the quality of the product.

[0085] In some embodiments, Figure 3 As shown, the cross section of the susceptor 4 is set to be one of a circular, square, elliptical and annular shape, the cross section shape of the excitation coil 5 is consistent with the cross section shape of the susceptor 4, and the cross section area of ​​the excitation coil 5 is greater than or equal to the cross section area of ​​the susceptor 4. By setting the cross section shape of the susceptor 4 and the excitation coil 5 to be consistent and limiting the relationship of the cross section area, it is beneficial to convert magnetic energy into heat energy as much as possible, improve energy conversion efficiency, and reduce energy consumption.

[0086] In an embodiment of the utility model, an aerosol generating system is provided, the aerosol generating system comprising an aerosol generating device according to any of the above embodiments, such as Figure 3-Figure 6As shown, the aerosol generating system further includes an aerosol generating matrix 6, which is disposed in the housing 2 and in contact with the receptor 4. The aerosol generating matrix 6 is used to generate aerosol under the condition that the receptor 4 is heated. It should be noted that the aerosol generating matrix in the embodiment of the utility model can be set as a tobacco aerosol generating matrix, that is, a tobacco flavoring matrix is ​​set inside the aerosol generating matrix 6 and wrapped with cigarette paper outside. The aerosol generating matrix 6 can be set as a flat structure, that is, the aerosol generating matrix 6 is longitudinally ( Figure 3 The thickness of the aerosol generating matrix 6 in the vertical direction (shown in the vertical direction) is smaller than that in the horizontal direction ( Figure 3 The alternating magnetic field generated by the excitation coil 5 cuts the susceptor 4, causing the susceptor 4 to generate eddy currents and generate heat, and the susceptor 4 bakes the aerosol generating matrix 6 to transfer heat energy to the aerosol generating matrix 6, so that the aerosol generating matrix 6 generates aerosol for the user to inhale. The embodiment of the utility model sets the aerosol generating matrix 6 in a flat shape, and the shape of the aerosol generating matrix fits the surface of the susceptor 4, which is conducive to improving the uniformity of heating, thereby improving the quality of atomization.

[0087] In some embodiments, Figure 3 As shown, the housing 2 includes a nozzle 24 and a handheld portion 25, and the nozzle 24 is connected to the handheld portion 25 to form a heating chamber 23. It should be noted that the nozzle 24 can be detachably connected to the handheld portion 25 to facilitate the user to replace the aerosol generating matrix 6 or clean the inside of the housing. An installation chamber 21 is arranged in the handheld portion 25, and the aerosol generating matrix 6 and the sensor 4 are arranged in the heating chamber 23. The excitation coil 5 and the magnetic conductive member 8 are arranged in the installation chamber 21. In order to improve the stability of the installation of the excitation coil 5 and the magnetic conductive member 8 and reduce the risk of magnetic line leakage, the installation chamber 21 can be roughly divided into two sub-cavities, one of which is used to install the excitation coil 5 and the magnetic conductive member 8, and the other sub-cavity is used to install power supply devices such as the power supply 1 and the electric control board 3. The nozzle 24 is provided with an air outlet channel 26 connecting the heating chamber 23 and the outside of the housing 2. The aerosol generating matrix 6 in the heating chamber 23 is heated and atomized into an aerosol, and the aerosol is guided to the outside of the shell 2 through the air outlet channel 26 for use by the user. In the embodiment of the utility model, the aerosol generating matrix 6 is completely arranged in the heating chamber 23, and the user uses it by docking with the mouthpiece instead of directly docking with the aerosol generating matrix, which is conducive to improving the user experience and the hygiene level of use.

[0088] In some embodiments, Figure 3-Figure 6As shown, the aerosol generating system further includes a filter 9, which is disposed in the air outlet channel 26. The filter 9 is used to filter the aerosol generated from the heating chamber 23. The embodiment of the utility model does not limit the specific form of the filter 9. The embodiment of the utility model arranges the aerosol generating substrate in the heating chamber, arranges the air outlet channel between the heating chamber and the outside of the shell, and arranges the filter in the air outlet channel, so that the aerosol reaches the user end after filtering. The user is not in direct contact with the aerosol generating substrate when using it. The filter 9 can filter impurities in the aerosol and reduce the temperature of the aerosol, thereby improving the user's inhalation taste.

[0089] The positional relationship between the receptor 4 and the aerosol generating substrate 6 in the embodiment of the utility model can be set in various ways.

[0090] In some embodiments, Figure 3 , Figure 5 and Figure 6 As shown, the receptor 4 is arranged on the side of the aerosol generating substrate 6 close to the excitation coil 5, that is, the receptor 4 is arranged on the outside of the aerosol generating substrate 6. By arranging the receptor 4 on the side of the aerosol generating substrate 6 close to the excitation coil 5, it is beneficial to improve the energy conversion efficiency of the receptor 4 and reduce energy consumption.

[0091] In some embodiments, Figure 4 As shown, the receptor 4 is disposed inside the aerosol generating matrix 6, and the receptor 4 is located on the central axis plane of the aerosol generating matrix 6, and the central axis plane is parallel to the longitudinal direction ( Figure 4 That is, the distances between the sensor 4 and the upper and lower surfaces of the aerosol generating substrate 6 are equal, so that the heating degree of each part of the aerosol generating substrate 6 is more even, so as to improve the atomization effect of the aerosol generating substrate.

[0092] In an embodiment of the present utility model, an aerosol generating system is provided, and the aerosol generating system comprises an aerosol generating device as described in any of the above embodiments, such as Fig.13 As shown, a liquid storage chamber 22 is provided in the housing 2, and the liquid storage chamber 22 and the mounting chamber 21 are longitudinally ( Fig.13The housing 2 is sequentially arranged in the vertical direction (as shown in the figure), and the housing 2 is also provided with an air outlet channel connecting the inner and outer sides of the housing 2; the aerosol generating device also includes a substrate 11, the substrate 11 is connected to the liquid storage cavity 22, the liquid storage cavity 22 is used to store the aerosol generating matrix of the liquid, and the substrate 11 is used to adsorb the aerosol generating matrix of the liquid in the liquid storage cavity 22; the receptor 4 is arranged on the side of the substrate 11 close to the mounting cavity 21. Among them, the substrate 11 is set as a porous oil-conducting material, and the receptor part is embedded in the porous material. The substrate 11 can store a certain amount of liquid aerosol generating matrix and control the extraction speed of the liquid aerosol generating matrix. The receptor 4 is in contact with the substrate 11, and the receptor 4 transfers heat to the substrate 11 to atomize the aerosol generating matrix of the liquid in the substrate 11 to generate a gaseous aerosol.

[0093] In some embodiments, Fig.13 As shown, the sensor 4 is configured to be flat, and the sensor 4 is longitudinally ( Fig.13 The thickness in the vertical direction (shown) is smaller than that in the horizontal direction ( Fig.13 The width in the left and right directions shown in the figure is combined with Figure 14-17 As shown, the receptor 4 includes a magnetic collecting part 41 and a heating part 42. The magnetic collecting part 41 is provided in plurality, and the plurality means that the magnetic collecting part 41 is provided in at least two. Of course, the number of the magnetic collecting parts 41 provided includes but is not limited to two, three, four, five, etc. As long as the plurality of magnetic collecting parts 41 are symmetrically provided relative to the central axis of the excitation coil, the embodiment of the utility model is conducive to improving the uniformity of heating by symmetrically providing the magnetic collecting part 41 relative to the central axis. The heating part 42 connects the plurality of magnetic collecting parts 41, and the area of ​​the heating part 42 is smaller than the area of ​​the magnetic collecting part 41. Among them, the heating part 42 can be provided as a rib-like structure, and the heating part 42 connects the adjacent magnetic collecting parts 41, and the current between the adjacent magnetic collecting parts 41 is conducted through the heating part 42. By providing a heating part 42 with a smaller area, the heating part 42 is in an elongated shape when the current passes through the heating part 42, and the eddy current generated by electromagnetic induction of the receptor 4 will form a current concentration in the heating part 42, so that the heating speed and temperature of the heating part 42 are much higher than the magnetic collecting part 41, so as to achieve the purpose of rapid atomization.

[0094] In some embodiments, reference Figure 14-17As shown, the number of heating parts 42 between adjacent magnetic focusing parts 41 can be multiple, and the multiple heating parts 42 are arranged at intervals between the magnetic focusing parts 41; wherein, the width of the heating part 42 close to the center of the susceptor 4 is smaller than the width of the heating part 42 far from the center of the susceptor 4. In other words, the widths of the multiple heating parts 42 can also be set differently according to the difference in the positions where they are set. Since the temperature of the susceptor at the center is lower than that at the outside, the smaller the width of the heating part 42, the greater the current density and the higher the temperature. Therefore, the width of the heating part 42 is set smaller at the position close to the center, and the width of the heating part 42 set at the outside is set larger, so that the temperature inside and outside the susceptor can be balanced. On the inner side of the weak magnetic field, the heating part is set thinner to increase the current density, so that the current density of the susceptors in different regions tends to be consistent, and the consistency of the temperature at each position of the susceptor is improved.

[0095] In some embodiments, in combination Fig.13 and Fig.15 As shown, the heating portion 42 is provided in the longitudinal direction ( Fig.13 The through hole 43 is provided in the heating portion 42 in the vertical direction. The through hole is provided in the heating portion 42, which is beneficial to promoting the oil guide speed at the heating portion 42, and improving the atomized smoke volume and atomization efficiency.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An aerosol generating device, characterized in that: include: A shell body, wherein an atomizing chamber is provided inside, and the atomizing chamber is used to contain an aerosol-generating matrix; A power supply component, disposed in the housing; The electromagnetic heating component is arranged in the shell and is electrically connected to the power supply component; the electromagnetic heating component includes an excitation coil and a magnetic conductive member, and the atomization chamber, the excitation coil and the magnetic conductive member are arranged in sequence in the longitudinal direction of the shell.

2. The aerosol generating device according to claim 1, characterized in that: The magnetic conductive member includes a first extension portion and a second extension portion, the first extension portion extends in a transverse direction of the shell, the second extension portion extends in a longitudinal direction of the shell, the second extension portion is at least partially arranged on a side of the first extension portion close to the atomization chamber, and the excitation coil is sleeved on the outside of the second extension portion in the transverse direction.

3. The aerosol generating device according to claim 2, characterized in that: The first extension portion and the second extension portion are integrally formed; Alternatively, the first extension portion and the second extension portion are separated in a longitudinal direction, and a distance between the first extension portion and the second extension portion in the longitudinal direction is less than or equal to 2 mm.

4. The aerosol generating device according to claim 2, characterized in that: Along the longitudinal projection of the shell, the projection area of ​​the excitation coil on the first extension portion is less than or equal to the cross-sectional area of ​​the first extension portion.

5. The aerosol generating device according to claim 2, characterized in that: The magnetic conductive member further includes a third extending portion, which extends along the longitudinal direction toward a direction close to the atomizing chamber, and the third extending portion is arranged around an outer edge of the first extending portion.

6. The aerosol generating device according to any one of claims 1 to 5, characterized in that: The excitation coil is configured as a planar coil.

7. The aerosol generating device according to claim 6, characterized in that: The electromagnetic heating assembly also includes: The bracket is arranged on a side of the magnetic conductive component close to the atomizing chamber. The bracket is provided with a plurality of concentric limiting grooves. The excitation coil is a planar spiral coil and is clamped in the limiting grooves.

8. The aerosol generating device according to claim 7, characterized in that: The planar spiral coil includes a first planar spiral coil and a second planar spiral coil, and the first planar spiral coil and the second planar spiral coil are arranged in parallel in the longitudinal direction.

9. The aerosol generating device according to any one of claims 1 to 5, characterized in that: Also includes: A container, disposed in the housing, wherein at least a portion of the atomization chamber is formed inside the container; A susceptor constituting at least a portion of the container wall of the container, wherein the susceptor comprises a fourth extension portion extending in a transverse direction, and the fourth extension portion is arranged in parallel with the excitation coil; or the susceptor comprises a fourth extension portion and a fifth extension portion, the fourth extension portion extends in a transverse direction, the fifth extension portion extends in a longitudinal direction toward a side away from the excitation coil, and the fifth extension portion is arranged around at least a portion of the outer edge of the fourth extension portion.

10. An aerosol generating system, characterized in that: It comprises the aerosol generating device according to any one of claims 1 to 8, an aerosol generating substrate and a receptor, wherein the aerosol generating substrate and the receptor are arranged in the atomization chamber, and the aerosol generating substrate is in contact with the receptor to generate an aerosol under the condition that the receptor is heated.

11. An aerosol generating system, characterized in that: The aerosol generating system further comprises: According to the aerosol generating device according to any one of claims 1 to 8, a liquid storage chamber is further provided in the housing, and the liquid storage chamber and the atomization chamber are arranged in sequence in the longitudinal direction; A substrate, connected to the liquid storage cavity, and used for absorbing the liquid aerosol in the liquid storage cavity; A susceptor is in contact with the substrate and communicated with the atomization chamber.

12. An aerosol generating system according to claim 11, characterized in that The susceptor is in sheet form and comprises: The magnetic field focusing part is provided in a plurality; The heat generating part is connected to the plurality of magnetic collecting parts, and the area of ​​the heat generating part is smaller than the area of ​​the magnetic collecting part.

13. An aerosol generating system according to claim 12, characterized in that The heating parts are provided in plurality, and the heating parts are arranged at intervals, and the width of the heating part close to the center of the susceptor is smaller than the width of the heating part far from the center of the susceptor.

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