Heating assembly and aerosol generating device

Abstract

The invention discloses a heating assembly and an aerosol generating device, the heating assembly comprises a heating body and a magnetizer, at least one end of the heating body is provided with the magnetizer, and the cross section area of the magnetizer is gradually increased from one end close to the heating body to the other end; and the coil is used for generating magnetic lines to penetrate through the heating body and the magnetizer. According to the heating assembly provided by the invention, the sectional area of the magnetizer is gradually increased from one end close to the heating body to the other end, so that a magnetic line of force emitted by the coil penetrates through the end face with a relatively large area of the magnetizer, then penetrates out of the end face with a relatively small area of the magnetizer and enters the heating body; the density of the magnetic lines is enhanced in the process that the magnetic lines penetrate through the sections with different areas of the magnetizer, then the magnetic lines penetrate through the heating body, and the density of the magnetic lines is very low in other spaces of the heating assembly, so that the heating efficiency of the heating body is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of aerosol production equipment, in particular to a heating component and an aerosol generating device. Background Art

[0002] In aerosol generating devices, electromagnetic induction heating is one of the important methods for generating aerosol in electronic cigarettes.

[0003] In the prior art, the heating element in the aerosol generating device is placed in the middle of the coil, or due to the arrangement of some other structural components, some large gaps inevitably exist between the heating element and the coil. The existence of these gaps results in that when the aerosol generating device is working, only a part of the high-frequency magnetic lines of force generated by the coil passes through the heating element to produce a heating effect, while the other part of the high-frequency magnetic lines of force passes through the space between the coil and the heating element and is not utilized, thus resulting in low energy conversion efficiency.

[0004] Therefore, how to improve the energy conversion efficiency of the heating component is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0005] The object of the present invention is to provide a heating component and an aerosol generating device, which can effectively utilize the magnetic lines of force generated by the coil to improve the heating efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A heating component, used in an aerosol generating device, comprises:

[0008] A heating element and a magnetic conductor, wherein the magnetic conductor is disposed at at least one end of the heating element, and the cross-sectional area of ​​the magnetic conductor gradually increases from one end close to the heating element to the other end;

[0009] The coil is used to generate magnetic lines of force, and the magnetic lines of force pass through the heating element and the magnetic conductor.

[0010] Preferably, the magnetic conductor includes a first magnetic conductor and a second magnetic conductor, the first magnetic conductor and the second magnetic conductor are respectively located at two ends of the heating element, and the first magnetic conductor, the heating element and the second magnetic conductor are arranged in sequence along the axial direction of the coil.

[0011] Preferably, the heating element is cylindrical or columnar.

[0012] Preferably, the magnetizer is in a truncated cone shape, and an end surface of the magnetizer close to the heating element has the same cross-sectional shape and size as the heating element.

[0013] An aerosol generating device comprises a first shell component, a second shell component and the above-mentioned heating component, wherein the coil of the heating component is located in the second shell component, and the heating element of the heating component is located in the first shell component.

[0014] Preferably, the first shell assembly comprises a first shell body, an oil tank and an air flow channel are arranged in the first shell body, the oil tank and the air flow channel are connected, and the heating element is installed at a first end of the air flow channel;

[0015] The second shell assembly includes a second shell body, and the coil is arranged in the second shell body; a receiving portion is provided on the second shell body, and the heating element is installed in the receiving portion, and the magnetic lines of force generated by the coil pass through the heating element.

[0016] Preferably, the magnet in the heating component is installed in the air flow channel, the axial directions of the magnet and the coil are parallel to the installation direction of the air flow channel and the accommodating portion, and the coil is cylindrical and surrounded and located around the magnet and the heating element.

[0017] Preferably, the heating element and the magnetic conductor are both provided with a central channel in the axial direction, and the central channel is connected to the air flow channel.

[0018] Preferably, the magnetizer and the coil are both arranged on the second shell body, and the axial directions of the magnetizer and the coil are perpendicular to the installation direction of the airflow channel and the accommodating portion, and the shape of the coil is the same as the outer peripheral shape of the magnetizer, and is arranged around the outer periphery of the magnetizer.

[0019] Preferably, a gap is left between the heating element and the inner wall of the air flow channel of the first shell body for aerosol to flow.

[0020] The heating component provided by the present invention is applied to an aerosol generating device, and includes: a heating element and a magnet. The magnet is provided at least at one end of the heating element, and the cross-sectional area of ​​the magnet gradually increases from one end close to the heating element to the other end; a coil surrounding the periphery of the magnet is used to generate magnetic lines of force to pass through the heating element and the magnet. The heating element provided by the present invention gradually increases the cross-sectional area of ​​the magnet from one end close to the heating element to the other end, so that the magnetic lines of force emitted by the coil, after passing through the end face of the larger area of ​​the magnet, pass out from the end face of the smaller area of ​​the magnet and enter the heating element. Since the density of the magnetic lines of force is strengthened in the process of passing through the cross-sections of different areas of the magnet, and then passes through the heating element, while in other spaces of the heating element, the density of the magnetic lines of force is very low, resulting in a significant improvement in the heating efficiency of the heating element.

[0021] The aerosol generating device provided by the present invention is provided with the above-mentioned heating component. Since the heating component has the above-mentioned technical effects, the aerosol generating device provided with the heating component should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of a first specific implementation mode of the heating component provided by the present invention;

[0024] Figure 2 To set up Figure 1 A schematic structural diagram of an aerosol generating device of the heating component shown;

[0025] Figure 3 for Figure 1 Schematic diagram of magnetic field line distribution of the heating component shown;

[0026] Figure 4 This is a schematic structural diagram of a second specific implementation mode of the heating component provided by the present invention;

[0027] Figure 5 To set up Figure 4 A schematic structural diagram of an aerosol generating device of the heating component shown;

[0028] Figure 6 for Figure 4 Schematic diagram of magnetic field line distribution of the heating component shown;

[0029] Among them: the first shell component 1; the first shell body 11; the oil tank 111; the air flow channel 112; the second shell component 2; the second shell body 21; the electrical component 22; the power supply component 221; the circuit board 222; the heating component 3; the magnet 31; the first magnet 311; the second magnet 312; the heating element 32; the coil 33; the first coil 331; the second coil 332. DETAILED DESCRIPTION

[0030] The core of the present invention is to provide a heating component and an aerosol generating device, which can effectively gather magnetic lines of force, increase the density of magnetic lines of force entering the heating element, and thus improve the heating efficiency of the heating element.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 6 , Figure 1 This is a schematic structural diagram of a first specific implementation mode of the heating component provided by the present invention; Figure 2 To set up Figure 1 A schematic structural diagram of an aerosol generating device of the heating component shown; Figure 3 for Figure 1 Schematic diagram of magnetic field line distribution of the heating component shown; Figure 4 This is a schematic structural diagram of a second specific implementation mode of the heating component provided by the present invention; Figure 5 To set up Figure 4 A schematic structural diagram of an aerosol generating device of the heating component shown; Figure 6 for Figure 4 Schematic diagram of the magnetic field line distribution of the heating component shown.

[0033] In this embodiment, the heating component 3 includes:

[0034] A heating element 32 and a magnetizer 31, wherein at least one end of the heating element 32 is provided with the magnetizer 31, and the cross-sectional area of ​​the magnetizer 31 gradually increases from one end close to the heating element 32 to the other end away from the heating element 32;

[0035] The magnetic lines of force generated by the coil 33 pass through the heating element 32 and the magnetizer 31. Furthermore, the heating element 32 and the magnetizer 31 should be arranged at the position where the density of the magnetic lines of force generated by the coil 33 is the largest. Preferably, in the axial projection direction of the coil 33, the heating element 32 and the magnetizer 31 are both located in the middle of the coil 33, so as to ensure that as many magnetic lines of force as possible pass through the magnetizer 31 and then pass through the heating element 32. More preferably, the axes of the coil 33 and the magnetizer 31 coincide, and the heating element 32 is located on the axes of the coil 33 and the magnetizer 31.

[0036] Specifically, since the area of ​​the end of the magnetizer 31 away from the heating element 32 is enlarged, the magnetizer 31 tends to the coil 33, which can maximize the increase in the number of magnetic lines of force entering the magnetizer 31. The larger the surface area, the more magnetic lines of force can be received, the less leakage magnetic flux, and the higher the energy utilization efficiency. However, since there are structures such as the battery rod wall and the oil cup wall between the actual coil 33 and the magnetizer 31, when the area is the largest, the outer diameter of the magnetizer 31 will be equal to the inner diameter of the oil cup wall, and will not contact the coil 33. On the other hand, the side of the magnet 31 close to the heating element 32 can be in contact with the heating element 32 or not. When it is not in contact, it only needs to be close to a certain distance. Since the magnetic lines of force are continuously distributed in space and the heating element 32 has a certain magnetic permeability, most of the magnetic lines of force can still pass through the magnet 31 smoothly into the heating element 32; the advantage of the magnet 31 not being in contact with the heating element 32 is that most of the magnetic lines of force can enter the heating element 32, but very little heat from the heating element 32 is transferred to the magnet 31, so the heat loss is relatively small; the side of the magnet 31 with a larger area is for maximizing the increase in the magnetic lines of force entering the magnet 31, while the side with a smaller area is for concentrating all the magnetic lines of force in the magnet 31 before entering the heating element 32. In this way, most of the magnetic lines of force will pass through the heating element 32, and the energy conversion efficiency is greatly improved.

[0037] The heating component 3 provided by the present invention has a cross-sectional area of ​​the magnet 31 that gradually increases from one end close to the heating element 32 to the other end, that is, the end far away from the heating element 32. The magnetic lines of force emitted by the coil 33 penetrate through the end face of the magnet 31 with a larger area, then pass through the end face of the magnet 31 with a smaller area, and enter the heating element 32. As the density of the magnetic lines of force is enhanced in the process of passing through the cross-sections of different areas of the magnet 31, and then pass through the heating element 32, while in other spaces of the heating component 3, the density of the magnetic lines of force is very low, thereby significantly improving the heating efficiency of the heating element 32.

[0038] In some embodiments, the magnet 31 includes a first magnet 311 and a second magnet 312, and the first magnet 311 and the second magnet 312 are respectively located at two ends of the heating element 32, and the first magnet 311, the heating element 32, and the second magnet 312 are arranged in sequence along the axial direction of the coil 33; preferably, the axial directions of the first magnet 311, the heating element 32, the second magnet 312 and the coil 33 all coincide. Specifically, when the aerosol generating device is working, a high-frequency magnetic field is generated near the coil 33, wherein the path of most of the magnetic lines of force is: starting from the outside of the coil 33, penetrating through the larger end face of the first magnet 311, passing through the smaller end face, passing through the heating element 32, penetrating through the smaller end face of the second magnet 312, passing through the larger end face, and finally returning to the starting position through the external space of the coil 33; by arranging the first magnet 311 and the second magnet 312 at both ends of the heating element 32, the heating efficiency of the heating element 32 can be maximized. In addition, since the magnetic lines of force are closed in space, the functions of the first magnet 311 and the second magnet 312 are exactly the same, and they are placed symmetrically. In order to simply explain the path of the magnetic lines of force, the starting position and direction of the magnetic lines of force are assumed in this article. In fact, the magnetic lines of force are completely symmetrically distributed.

[0039] In some embodiments, the heating element 32 is cylindrical or columnar, such as Figure 1 As shown, when the heating element 32 is cylindrical, the outer wall of the heating element 32 can be fitted on the inner wall of the airflow channel 112, so that the hollow position of the heating element 32 is connected to the airflow channel 112, which facilitates the flow of aerosol. When the heating element 32 is columnar, a gap should be set between the heating element 32 and the inner wall of the airflow channel 112 to allow the aerosol to flow smoothly. Of course, the shape of the heating element 32 can be selected as needed and is not limited to the shape given in this embodiment. It should be noted that the heating element 32 should be arranged as much as possible in the axial direction of the coil 33, so as to ensure that more magnetic lines of force pass through the heating element 32 and improve the heating efficiency of the heating element 32.

[0040] In some embodiments, the magnetizer 31 is truncated cone-shaped, and the end face of the magnetizer 31 close to the heating element 32 has the same cross-sectional shape and size as the heating element 32. Specifically, by making the shape of the end face of the magnetizer 31 close to the heating element 32 roughly the same as or similar to the shape of the heating element 32 on this side, and the area of ​​the end face close to the heating element 32 is equal to or approximately equal to the area of ​​the end face of the heating element 32 on this side, such a configuration is to enable the magnetic lines of force gathered by the magnetizer 31 to pass through the end face of the heating element 32 more efficiently, thereby further improving the heating efficiency of the heating element 32. Of course, the above scheme is a preferred scheme, and there may be slight deviations in actual use.

[0041] The principle of the heating component 3 is that the magnetizer 31 and the heating element 32 are both made of materials with high magnetic permeability, and the nearby magnetic lines of force will be attracted to the inside. The outside of the magnetizer 31 is the air domain, whose relative magnetic permeability is very small, and the magnetic lines of force will rarely pass through the air domain; and the magnetic lines of force are distributed continuously in space, so under the condition of a relatively close distance, most of the magnetic lines of force will flow along the inside of the high magnetic permeability material. At the same time, since the magnetic lines of force will flow along the inside of the high magnetic permeability material, there are very few magnetic lines of force distributed in the surrounding air domain. The characteristics of the high magnetic permeability material absorbing magnetic lines of force and the gradual transition of the area roughly along the direction of the magnetic lines of force are used to strengthen the density of the magnetic lines of force. The strengthened magnetic lines of force will enter the heating element 32, thereby generating heat efficiently.

[0042] In addition to the above-mentioned heating component 3 , the present invention further provides an aerosol generating device including the above-mentioned heating component 3 .

[0043] The aerosol generating device comprises a first shell component 1, a second shell component 2 and the above-mentioned heating component 3, wherein the coil 33 of the heating component 3 is located in the second shell component 2, and the heating element 32 of the heating component 3 is located in the first shell component 1. Specifically, the first shell component 1 and the second shell component 2 are separately arranged, and the heating element 32 and the coil 33 in the heating component 3 are respectively arranged in the first shell component 1 and the second shell component 2, so that the space where the coil 33 is located is independent of the space required for the oil guide channel and the air flow channel 112 in the first shell component 1, and is no longer restricted by space, and the diameter of the coil 33 can be reduced to save space. At the same time, the coil 33 can be wound with more turns to generate a stronger magnetic field, further improving the heating efficiency of the heating element 32.

[0044] Furthermore, the first shell component 1 and the second shell component 2 can be an integral structure or can be detachably connected, which can be selected according to needs. Preferably, the first shell component 1 and the second shell component 2 are detachably connected, and the heating element 32 can be disassembled along with the first shell component 1. Under the premise of satisfying the disassembly structure, the purpose of miniaturization of the coil 33 is achieved.

[0045] Of course, if space permits, the heating assembly 3 may be entirely arranged in the first housing assembly 1 , or entirely arranged in the second housing assembly 2 .

[0046] In some embodiments, the first housing assembly 1 includes a first housing body 11, an oil tank 111 and an air flow channel 112 are arranged in the first housing body 11, and the heating element 32 is installed at a first end of the air flow channel 112;

[0047] The second shell assembly 2 includes a second shell body 21 , and the coil 33 is arranged in the second shell body 21 ; a receiving portion is provided on the second shell body 21 , and the heating element 32 is installed in the receiving portion, and the magnetic lines of force generated by the coil 33 pass through the heating element 32 .

[0048] Specifically, the first end of the airflow channel 112 refers to the end of the airflow channel 112 close to the second shell body 21; the coil 33 is arranged in the second shell component 2 of the aerosol generating device, and the heating element 32 is arranged in the first shell component 1 of the aerosol generating device. When the aerosol generating device is used by the user, the first shell component 1 and the second shell component 2 of the aerosol generating device are combined together. At this time, the axis of the heating element 32 coincides with the axis of the coil 33. At the same time, a high-frequency magnetic field is generated near the coil 33, and part of the magnetic lines of force start from the inside of the coil 33 and pass through the heating element 32. The magnetic lines of force pass through the heating element 32 and then reach the edge of the heating element 32 again. When there are two coils 33, the magnetic lines of force pass through the other coil 33 again and then return from the outside of the coil 33 to the inside of the other coil 33. The magnetic lines of force passing through the heating element 32 will cause the heating element 32 to generate heat, thereby heating the aerosol matrix. The airflow channel 112 is located in the middle of the oil tank 111. The aerosol matrix in the oil tank 111 flows to the vicinity of the heating element 32 to form an aerosol, which flows from the first end to the second end along the airflow channel 112 for inhalation by the user.

[0049] In some embodiments, a gap is provided between the heating element 32 and the inner wall of the airflow channel 112 for the aerosol to flow. Specifically, after the aerosol is formed, it will enter the airflow channel 112, and the heating element 32 is installed in the airflow channel 112. In order to reduce the obstruction of the heating element 32 to the aerosol, a gap is provided between the heating element 32 and the inner wall of the airflow channel 112 to ensure that the aerosol flows out smoothly. Preferably, the heating element 32 is cylindrical or columnar, which is conducive to the shape design of the magnetizer 31.

[0050] In some embodiments, the magnetizer 31 in the heating component 3 is installed in the air flow channel 112, and the axes of the heating element 32, the magnetizer 31 and the coil 33 are parallel to the installation direction of the air flow channel 112 and the accommodating portion, and the coil 33 is cylindrically surrounded. This method can facilitate the installation and fixation of the magnetizer 31, and the outer wall of the magnetizer 31 can be directly fitted with the inner wall of the air flow channel 112.

[0051] In some embodiments, the heating element 32 and the magnetic conductor 31 are both provided with a central channel in the axial direction, and the central channel is connected to the air flow channel 112. Figure 1 and Figure 2As shown, the aerosol in the guide channel flows along the central channel of the magnetic conductor 31 and the central channel of the heating element 32 from the first end of the airflow channel 112 to the second end. Such an arrangement can reduce the assembly of the second shell body 21, and only the coil 33 needs to be installed on the second shell body 21.

[0052] In some embodiments, the magnetizer 31 and the coil 33 are both arranged on the second shell body 21, and the axial directions of the magnetizer 31 and the coil 33 are perpendicular to the installation direction of the airflow channel 112 and the accommodating portion. Similarly, the extension direction of the heating element 32 is preferably perpendicular to the installation direction of the airflow channel 112 and the accommodating portion, and the shape of the coil 33 is the same as the outer peripheral shape of the magnetizer 31, and is arranged around the outer periphery of the magnetizer 31 and is located around the magnetizer 31 and the heating element 32. Specifically, preferably, the magnetizer 31 is truncated cone-shaped, and the coil 33 is also truncated cone-shaped. In this case, the corresponding heating element 32 can be one or more bar-shaped structural members, and the axial direction of the heating element 32 coincides with the axial direction of the coil 33. Specifically, as Figure 4 and Figure 5 As shown, by arranging both the magnetizer 31 and the coil 33 on the second shell body 21, since the magnetizer 31 and the coil 33 are in the same space, the shape of the coil 33 is more flexible and can be completely surrounded according to the shape of the magnetizer 31, thereby further reducing the occupied area of ​​the coil 33 and maximizing the reduction of the volume of the second shell body 21.

[0053] Furthermore, by arranging the axial direction of the coil 33 to be perpendicular to the installation direction of the airflow channel 112 and the accommodating part, that is, perpendicular to the axial direction of the entire device, the purpose is to save space and not be restricted by the space of other components, thereby improving energy utilization efficiency. Specifically, the coil 33 can be placed separately on both sides of one end of the second shell body 21 close to the first shell body 11, thereby avoiding the solution in the prior art that the heating element 32 will be wrapped in the center of the coil 33, thereby avoiding the need to leave some space between the heating element 32 and the coil 33, such as the oil guide channel, the airflow channel 112, the oil guide cotton or the oil guide component of the ceramic material, the outer wall of the oil tank 111, the outer wall of the battery rod, etc., resulting in the problem of a relatively large diameter of the overall device. By adopting the vertical placement solution, the space of the coil 33 and the heating element 32 is separated from each other, the space constraint between them is reduced, and the diameter of the coil 33 can be relatively small, so that more turns can be wound, which is conducive to concentrating the magnetic field. It should be noted here that the axial direction of the coil 33 is perpendicular to the installation direction of the air flow channel 112 and the accommodating portion, so as to make the magnetic lines of force generated by the coil 33 pass through the heating element 32 as much as possible, thereby improving the heating efficiency of the heating element 32; of course, the installation direction of the coil 33 and the installation direction of the heating element 32 can also be inclined relative to the installation direction of the air flow channel 112 and the accommodating portion, as long as the axial directions of each coil 33 and the heating element 32 are consistent. Of course, without considering the efficiency, the installation direction of each coil 33 and the heating element 32 can also be adjusted as needed.

[0054] In some embodiments, a gap is left between the heating element 32 and the inner wall of the airflow channel 112 of the first shell body 11 for aerosol flow. Specifically, after the aerosol is formed, it will enter the airflow channel 112, and the heating element 32 is installed in the airflow channel 112. In order to reduce the obstruction of the heating element 32 to the aerosol, a gap is set between the heating element 32 and the inner wall of the airflow channel 112 to ensure that the aerosol flows out smoothly. Further, the heating element 32 is in the shape of a sheet, a cylinder, a column or a strip, preferably a cylinder. The cylindrical heating element 32 is easy to install, and the heating element 32 is hollow inside, which facilitates the flow of aerosol; of course, the shape of the heating element 32 can be selected as needed, and is not limited to the shape given in this embodiment. It should be noted that the heating element 32 should be arranged as much as possible in the axial direction of the coil 33, so as to ensure that more magnetic lines of force pass through the heating element 32 and improve the heating efficiency of the heating element 32.

[0055] In some embodiments, the electrical component 22 includes a power supply component 221 and a circuit board 222, the power supply component 221 is connected to the circuit board 222, and the circuit board 222 is connected to the coil 33. Specifically, the coil 33 is connected to the circuit board 222, and the circuit board 222 includes a control circuit for the coil 33; the power supply component 221 can be a battery, and the electric energy of the power supply component 221 is transmitted to the coil 33 through the circuit board 222, and then transmitted to the heating element 32 by the coil 33, and the heating element 32 finally transmits the energy to the aerosol matrix to generate an aerosol.

[0056] In some embodiments, an oil guide component is further included, which is installed in the first housing body 11 and located between the oil tank 111 and the heating element 32. Specifically, the oil guide component is a porous oil guide medium. When the aerosol generating device is used, the aerosol matrix flows from the oil tank 111 to the position of the oil guide component. The outlet of the oil tank 111 is provided with an oil guide channel. The oil guide component is located in the oil guide channel. Then the oil guide component conducts the aerosol matrix to the position of the heating element 32 to achieve the purpose of heating the aerosol matrix.

[0057] In some embodiments, at least two arrangement bins are provided on a protrusion at one end of the second shell body 21 close to the first shell body 11, a depression is formed between two adjacent arrangement bins to constitute a receiving portion, and at least one arrangement bin is provided with a coil 33. The provision of the arrangement bins is, on the one hand, conducive to forming a receiving portion, facilitating the assembly of the first shell body 11 and the second shell body 21, and on the other hand, by installing the coil 33 in the arrangement bin, the original position of the electrical component 22 is not affected, and there is no need to increase the volume of the second shell body 21, while meeting the heating requirements of the coil 33 on the heating element 32, which is conducive to miniaturization.

[0058] Furthermore, there are two arrangement bins, which are arranged on both sides of the second shell body 21 and are symmetrically distributed, so that the magnetic field strength at both ends of the heating element 32 is consistent, and at the same time, the accommodating portion can be located in the middle of the second shell body 21, ensuring that the first shell body 11 and the second shell body 21 are more stable after assembly. Of course, the number and position of the arrangement bins can also be selected as needed, and are not limited to the method given in this embodiment.

[0059] In some embodiments, the number of coils 33 is the same as the number of arrangement bins, and they correspond one to one, and the axes of the coils 33 coincide. Specifically, by providing multiple coils 33, the strength of the magnetic flux lines can be increased, thereby improving the heating efficiency of the heating element 32.

[0060] In some embodiments, each coil 33 is independent of each other and connected in parallel to the electrical component 22. Specifically, each coil 33 is preferably connected to the electrical component 22 separately, so that when a single coil 33 is powered off, other coils 33 can continue to generate a magnetic field to ensure the normal operation of the heating element 32; it should be noted that the winding directions of each coil 33 can be the same or different, and the direction of the current passed through the coil 33 should be matched with the winding direction, so that the magnetic fields generated by each coil 33 are superimposed on each other to avoid demagnetization.

[0061] Preferably, the coil 33 includes a first coil 331 and a second coil 332, the axes of the first coil 331 and the second coil 332 coincide with each other and are perpendicular to the long axis of the aerosol generating device, that is, the installation direction of the airflow channel 112 and the accommodating portion; the winding directions of the first coil 331 and the second coil 332 are the same or opposite, and the circuit connection relationship between the first coil 331 and the second coil 332 can be in series or in parallel; the two coils 33 can be connected in the same control circuit or in two control circuits respectively. Specifically, the direction of the magnetic field generated by the coil 33 is not only related to the winding direction of the coil 33, but also to the direction of the current passing through the coil 33. Therefore, when the first coil 331 and the second coil 332 are energized, the direction of the current in the coil 33 needs to be considered. When the windings of the first coil 331 and the second coil 332 are opposite, the direction of the current passing through them should also be opposite. When the windings of the first coil 331 and the second coil 332 are the same, the direction of the current passing through them should also be the same, so as to avoid the magnetic field generated by the two coils 33 from being offset. At the same time, since the excitation current applied in the first coil 331 and the second coil 332 is a high-frequency oscillation, the polarities generated by the first coil 331 and the second coil 332 are different at any time. Therefore, it is necessary to control the direction of the current input into the first coil 331 and the second coil 332 by the control circuit board 222 so that the polarity and phase of each coil 33 are the same at any time. The magnetic flux will not be offset but will be strengthened.

[0062] When the polarities of the first coil 331 and the second coil 332 are the same, since the heating element 32 is also made of a material with a certain magnetic permeability, the magnetic lines of force near it will be guided to the inside of the heating element 32, and the distribution of the magnetic lines of force in space is continuous. When the magnetic lines of force generated by the center of the first coil 331 reach the vicinity of the heating element 32, they will be guided to the inside of the heating element 32, and then pass through the heating element 32 to enter the center of the second coil 332. Figure 5 The heating wire acts as a bridge between the magnetic lines of force between the first coil 331 and the second coil 332 , thereby enhancing the transmission effect of the magnetic lines of force in the two coils 33 and achieving efficient heating of the heating element 32 .

[0063] Specifically, in the first specific embodiment, if Figures 1 to 3 As shown, the aerosol generating device includes a first shell body 11, a second shell body 21 and a heating component 3, the first shell body 11 is provided with an oil tank 111 and an air flow channel 112, and the second shell body 21 is arranged with a circuit board 222, a power supply component 221 and other related structures; the heating component 3 includes a coil 33, a heating element 32, a first magnetic conductor 31, and a second magnetic conductor 31, wherein the heating element 32, the first magnetic conductor 31 and the second magnetic conductor 31 are located in the first shell body 11, and the coil 33 is located in the second shell body 21; the heating component 3 is placed vertically as a whole, that is, parallel to the overall axial direction of the device, that is, the air flow channel 112 and the accommodating portion are aligned. Installation direction: The heating element 32 is placed in the middle of the coil 33, and the first magnet 31 has an end face with a larger area and an end face with a smaller area along the axial direction. When the heating component 3 is working, the magnetic lines of force will penetrate from the end face with a larger area, and pass through the first magnet 31 and out from the end face with a smaller area. At this time, the density of the magnetic lines of force will be enhanced, and the first magnet 31 is close to the heating element 32. The magnetic lines of force passing through the first magnet 31 will quickly penetrate into the heating element 32, so that the heating element 32 can produce an efficient heating effect due to hysteresis loss, eddy current loss, and residual loss, and then transfer heat to the aerosol matrix, and the aerosol matrix is ​​further transformed into aerosol and carried away by the airflow.

[0064] Specifically, in the second specific embodiment, if Figures 4 to 6As shown, the aerosol generating device includes a first shell body 11, a second shell body 21 and a heating component 3, the first shell body 11 is provided with an oil tank 111 and an air flow channel 112, and the second shell body 21 is arranged with a circuit board 222, a power supply component 221 and other related structures; the heating component 3 includes a coil 33, a heating element 32, a first magnetic conductor 31, and a second magnetic conductor 31, wherein the heating element 32 is located in the first shell body 11, and the coil 33, the first magnetic conductor 31 and the second magnetic conductor 31 are located in the second shell body 21; the heating component 3 is placed horizontally as a whole, and the axes of the first magnetic conductor 31, the second magnetic conductor 31, the heating element 32 and the coil 33 coincide with each other. Since in this embodiment, the coil 33 is not affected by the heating element 32 and other components in space, the diameters of the two sides of the coil 33 can also be set to be different, and the diameter on the side close to the heating element 32 is smaller, which can play a role in strengthening the magnetic field, while the diameter on the other side of the coil 33 is larger, and has a larger area to receive magnetic lines of force. When the heating component 3 is working, the magnetic lines of force will penetrate from the end face of the first magnetizer 31 with a larger diameter, and pass through the first magnetizer 31 to pass out from the end face with a smaller diameter. At this time, the density of the magnetic lines of force will be enhanced, and the first magnetizer 31 is close to the heating element 32. The magnetic lines of force passing through the first magnetizer 31 will quickly penetrate into the heating element 32, so that the heating element 32 can produce an efficient heating effect due to hysteresis loss, eddy current loss, and residual loss, and then the heat on the heating element 32 is transferred to the aerosol matrix again, thereby generating an aerosol for the user to inhale.

[0065] Compared with the traditional electromagnetic induction aerosol generating device, the aerosol generating device has the following advantages:

[0066] 1. The diameter of the coil 33 is smaller, saving space and materials;

[0067] 2. The magnetic lines of force passing through the coil 33 can pass through the heating element 32 more to cause heating, which is more efficient;

[0068] 3. The coil 33 can be wound with more turns to generate a stronger magnetic field;

[0069] 4. The space where the coil 33 is located is independent of the space required by the oil guide channel, the air flow channel 112, and the oil guide component, and is no longer restricted by space, so the structural design of the aerosol generating device is more flexible;

[0070] 5. A magnetic conductor 31 is added at the center of the coil 33 to further strengthen the magnetic field.

[0071] For the structures of other parts of the aerosol generating device, please refer to the prior art and will not be described in detail in this article.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] The above is a detailed introduction to the heating component provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A heating component, used in an aerosol generating device, characterized in that: include: A heating element (32) and a magnetic conductor (31), wherein the magnetic conductor (31) is provided at least at one end of the heating element (32), and the cross-sectional area of ​​the magnetic conductor (31) gradually increases from one end close to the heating element (32) to the other end; The coil (33) is used to generate magnetic lines of force, and the magnetic lines of force pass through the heating element (32) and the magnetic conductor (31).

2. The heating component according to claim 1, characterized in that: The magnetic conductor (31) comprises a first magnetic conductor (311) and a second magnetic conductor (312); the first magnetic conductor (311) and the second magnetic conductor (312) are respectively located at two ends of the heating element (32); the first magnetic conductor (311), the heating element (32) and the second magnetic conductor (312) are arranged in sequence along the axial direction of the coil (33).

3. The heating component according to claim 1, characterized in that: The heating element (32) is cylindrical or columnar.

4. The heating component according to any one of claims 1 to 3, characterized in that: The magnetizer (31) is in the shape of a truncated cone, and an end surface of the magnetizer (31) close to the heating element (32) has the same cross-sectional shape and size as the heating element (32).

5. An aerosol generating device, characterized in that: It comprises a first shell component (1), a second shell component (2) and a heating component (3) according to any one of claims 1 to 4, wherein the coil (33) of the heating component (3) is located in the second shell component (2), and the heating element (32) of the heating component (3) is located in the first shell component (1).

6. The heating component according to claim 5, characterized in that: The first housing assembly (1) comprises a first housing body (11), an oil tank (111) and an air flow channel (112) are arranged in the first housing body (11), the oil tank (111) and the air flow channel (112) are connected, and the heating element (32) is installed at a first end of the air flow channel (112); The second shell assembly (2) comprises a second shell body (21), the coil (33) being arranged inside the second shell body (21); a receiving portion is provided on the second shell body (21), the heating element (32) is mounted on the receiving portion, and the magnetic lines of force generated by the coil (33) pass through the heating element (32).

7. The heating component according to claim 6, characterized in that: The magnetizer (31) in the heating component (3) is installed in the air flow channel (112), and the axial directions of the magnetizer (31) and the coil (33) are parallel to the installation direction of the air flow channel (112) and the accommodating portion, and the coil (33) is cylindrical and surrounded and located at the periphery of the magnetizer (31) and the heating element (32).

8. The heating component according to claim 7, characterized in that: The heating element (32) and the magnetic conductor (31) are both provided with a central channel in the axial direction, and the central channel is connected to the air flow channel (112).

9. The heating component according to claim 6, characterized in that: The magnetizer (31) and the coil (33) are both arranged on the second shell body (21), and the axial directions of the magnetizer (31) and the coil (33) are perpendicular to the installation direction of the air flow channel (112) and the accommodating portion, and the shape of the coil (33) is the same as the outer peripheral shape of the magnetizer (31), and is arranged around the outer periphery of the magnetizer (31).

10. The heating component according to claim 9, characterized in that: A gap is left between the heating element (32) and the inner wall of the air flow channel (112) of the first shell body (11) for aerosol to flow.

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